A Brain System for Auditory Working Memory.

PubMed

Kumar, Sukhbinder; Joseph, Sabine; Gander, Phillip E; Barascud, Nicolas; Halpern, Andrea R; Griffiths, Timothy D

2016-04-20

The brain basis for auditory working memory, the process of actively maintaining sounds in memory over short periods of time, is controversial. Using functional magnetic resonance imaging in human participants, we demonstrate that the maintenance of single tones in memory is associated with activation in auditory cortex. In addition, sustained activation was observed in hippocampus and inferior frontal gyrus. Multivoxel pattern analysis showed that patterns of activity in auditory cortex and left inferior frontal gyrus distinguished the tone that was maintained in memory. Functional connectivity during maintenance was demonstrated between auditory cortex and both the hippocampus and inferior frontal cortex. The data support a system for auditory working memory based on the maintenance of sound-specific representations in auditory cortex by projections from higher-order areas, including the hippocampus and frontal cortex. In this work, we demonstrate a system for maintaining sound in working memory based on activity in auditory cortex, hippocampus, and frontal cortex, and functional connectivity among them. Specifically, our work makes three advances from the previous work. First, we robustly demonstrate hippocampal involvement in all phases of auditory working memory (encoding, maintenance, and retrieval): the role of hippocampus in working memory is controversial. Second, using a pattern classification technique, we show that activity in the auditory cortex and inferior frontal gyrus is specific to the maintained tones in working memory. Third, we show long-range connectivity of auditory cortex to hippocampus and frontal cortex, which may be responsible for keeping such representations active during working memory maintenance. Copyright © 2016 Kumar et al.

Development the conceptual design of Knowledge Based System for Integrated Maintenance Strategy and Operation

NASA Astrophysics Data System (ADS)

Milana; Khan, M. K.; Munive, J. E.

2014-07-01

The importance of maintenance has escalated significantly by the increasing of automation in manufacturing process. This condition switches traditional maintenance perspective of inevitable cost into the business competitive driver. Consequently, maintenance strategy and operation decision needs to be synchronized to business and manufacturing concerns. This paper shows the development of conceptual design of Knowledge Based System for Integrated Maintenance Strategy and Operation (KBIMSO). The framework of KBIMSO is elaborated to show the process of how the KBIMSO works to reach the maintenance decision. By considering the multi-criteria of maintenance decision making, the KB system embedded with GAP and AHP to support integrated maintenance strategy and operation which is novel in this area. The KBIMSO is useful to review the existing maintenance system and give reasonable recommendation of maintenance decisions in respect to business and manufacturing perspective.

Estimation of traffic impacts at work zones : state of the practice.

DOT National Transportation Integrated Search

2006-01-01

Assessing the safety and mobility impacts of work zones across the project development phases of road construction and maintenance projects is an emphasis area of the Federal Highway Administration's Final Rule on Work Zone Safety and Mobility1 (Fina...

[Medical Equipment Maintenance Methods].

PubMed

Liu, Hongbin

2015-09-01

Due to the high technology and the complexity of medical equipment, as well as to the safety and effectiveness, it determines the high requirements of the medical equipment maintenance work. This paper introduces some basic methods of medical instrument maintenance, including fault tree analysis, node method and exclusive method which are the three important methods in the medical equipment maintenance, through using these three methods for the instruments that have circuit drawings, hardware breakdown maintenance can be done easily. And this paper introduces the processing methods of some special fault conditions, in order to reduce little detours in meeting the same problems. Learning is very important for stuff just engaged in this area.

A comprehensive review of arsenic levels in the semiconductor manufacturing industry.

PubMed

Park, Donguk; Yang, Haengsun; Jeong, Jeeyeon; Ha, Kwonchul; Choi, Sangjun; Kim, Chinyon; Yoon, Chungsik; Park, Dooyong; Paek, Domyung

2010-11-01

This paper presents a summary of arsenic level statistics from air and wipe samples taken from studies conducted in fabrication operations. The main objectives of this study were not only to describe arsenic measurement data but also, through a literature review, to categorize fabrication workers in accordance with observed arsenic levels. All airborne arsenic measurements reported were included in the summary statistics for analysis of the measurement data. The arithmetic mean was estimated assuming a lognormal distribution from the geometric mean and the geometric standard deviation or the range. In addition, weighted arithmetic means (WAMs) were calculated based on the number of measurements reported for each mean. Analysis of variance (ANOVA) was employed to compare arsenic levels classified according to several categories such as the year, sampling type, location sampled, operation type, and cleaning technique. Nine papers were found reporting airborne arsenic measurement data from maintenance workers or maintenance areas in semiconductor chip-making plants. A total of 40 statistical summaries from seven articles were identified that represented a total of 423 airborne arsenic measurements. Arsenic exposure levels taken during normal operating activities in implantation operations (WAM = 1.6 μg m⁻³, no. of samples = 77, no. of statistical summaries = 2) were found to be lower than exposure levels of engineers who were involved in maintenance works (7.7 μg m⁻³, no. of samples = 181, no. of statistical summaries = 19). The highest level (WAM = 218.6 μg m⁻³) was associated with various maintenance works performed inside an ion implantation chamber. ANOVA revealed no significant differences in the WAM arsenic levels among the categorizations based on operation and sampling characteristics. Arsenic levels (56.4 μg m⁻³) recorded during maintenance works performed in dry conditions were found to be much higher than those from maintenance works in wet conditions (0.6 μg m⁻³). Arsenic levels from wipe samples in process areas after maintenance activities ranged from non-detectable to 146 μg cm⁻², indicating the potential for dispersion into the air and hence inhalation. We conclude that workers who are regularly or occasionally involved in maintenance work have higher potential for occupational exposure than other employees who are in charge of routine production work. In addition, fabrication workers can be classified into two groups based on the reviewed arsenic exposure levels: operators with potential for low levels of exposure and maintenance engineers with high levels of exposure. These classifications could be used as a basis for a qualitative ordinal ranking of exposure in an epidemiological study.

7. VIEW OF E5 WORK STATION AND MANIPULATOR ARMS WITHIN ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

7. VIEW OF E-5 WORK STATION AND MANIPULATOR ARMS WITHIN THE SOUTHEAST CORNER OF THE HOT BAY. - Nevada Test Site, Engine Maintenance Assembly & Disassembly Facility, Area 25, Jackass Flats, Mercury, Nye County, NV

Lake Billy Shaw Operations and Maintenance, Final Annual Report 2000.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Dodson, Guy; Pero, Vincent

Lake Billy Shaw is a newly constructed earthen dam reservoir with a surface area of 430 acres. Construction on the dam and structures was complete in November of 1998. The fish screen structures were complete in December of 1998, with initial filling in May 1999. Upon initial filling, dam structures, monitoring wells, fish screen structures, and lake level were monitored daily, with recordings being taken three times/week. During June 1999 the water to the lake was turned off in order to complete additional construction work on the lake. This work included installation of culverts around the perimeter road, installation ofmore » boat launches, finish work on the spillway structure, pumphouse and well protection and planting 4 trees along the entrance to the boat launch area. The water was turned on again in late September 1999 with all structures having been checked, fish screens greased and maintained and well levels being monitored. In 2000 the Operations and Maintenance portion of the project began with monitoring of piezometers, water levels, biological monitoring, riparian plantings, protection of shorelines, and maintenance of structures and appurtances.« less

8. VIEW OF E3 WORK STATION WITH MANIPULATOR ARMS IN ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

8. VIEW OF E-3 WORK STATION WITH MANIPULATOR ARMS IN EAST OPERATING GALLERY LOOKING INTO THE HOT BAY. - Nevada Test Site, Engine Maintenance Assembly & Disassembly Facility, Area 25, Jackass Flats, Mercury, Nye County, NV

Mapping of the Underlying Neural Mechanisms of Maintenance and Manipulation in Visuo-Spatial Working Memory Using An n-back Mental Rotation Task: A Functional Magnetic Resonance Imaging Study.

PubMed

Lamp, Gemma; Alexander, Bonnie; Laycock, Robin; Crewther, David P; Crewther, Sheila G

2016-01-01

Mapping of the underlying neural mechanisms of visuo-spatial working memory (WM) has been shown to consistently elicit activity in right hemisphere dominant fronto-parietal networks. However to date, the bulk of neuroimaging literature has focused largely on the maintenance aspect of visuo-spatial WM, with a scarcity of research into the aspects of WM involving manipulation of information. Thus, this study aimed to compare maintenance-only with maintenance and manipulation of visuo-spatial stimuli (3D cube shapes) utilizing a 1-back task while functional magnetic resonance imaging (fMRI) scans were acquired. Sixteen healthy participants (9 women, M = 23.94 years, SD = 2.49) were required to perform the 1-back task with or without mentally rotating the shapes 90° on a vertical axis. When no rotation was required (maintenance-only condition), a right hemispheric lateralization was revealed across fronto-parietal areas. However, when the task involved maintaining and manipulating the same stimuli through 90° rotation, activation was primarily seen in the bilateral parietal lobe and left fusiform gyrus. The findings confirm that the well-established right lateralized fronto-parietal networks are likely to underlie simple maintenance of visuo-spatial stimuli. The results also suggest that the added demand of manipulation of information maintained online appears to require further neural recruitment of functionally related areas. In particular mental rotation of visuospatial stimuli required bilateral parietal areas, and the left fusiform gyrus potentially to maintain a categorical or object representation. It can be concluded that WM is a complex neural process involving the interaction of an increasingly large network.

Mapping of the Underlying Neural Mechanisms of Maintenance and Manipulation in Visuo-Spatial Working Memory Using An n-back Mental Rotation Task: A Functional Magnetic Resonance Imaging Study

PubMed Central

Lamp, Gemma; Alexander, Bonnie; Laycock, Robin; Crewther, David P.; Crewther, Sheila G.

2016-01-01

Mapping of the underlying neural mechanisms of visuo-spatial working memory (WM) has been shown to consistently elicit activity in right hemisphere dominant fronto-parietal networks. However to date, the bulk of neuroimaging literature has focused largely on the maintenance aspect of visuo-spatial WM, with a scarcity of research into the aspects of WM involving manipulation of information. Thus, this study aimed to compare maintenance-only with maintenance and manipulation of visuo-spatial stimuli (3D cube shapes) utilizing a 1-back task while functional magnetic resonance imaging (fMRI) scans were acquired. Sixteen healthy participants (9 women, M = 23.94 years, SD = 2.49) were required to perform the 1-back task with or without mentally rotating the shapes 90° on a vertical axis. When no rotation was required (maintenance-only condition), a right hemispheric lateralization was revealed across fronto-parietal areas. However, when the task involved maintaining and manipulating the same stimuli through 90° rotation, activation was primarily seen in the bilateral parietal lobe and left fusiform gyrus. The findings confirm that the well-established right lateralized fronto-parietal networks are likely to underlie simple maintenance of visuo-spatial stimuli. The results also suggest that the added demand of manipulation of information maintained online appears to require further neural recruitment of functionally related areas. In particular mental rotation of visuospatial stimuli required bilateral parietal areas, and the left fusiform gyrus potentially to maintain a categorical or object representation. It can be concluded that WM is a complex neural process involving the interaction of an increasingly large network. PMID:27199694

Brain activity related to working memory for temporal order and object information.

PubMed

Roberts, Brooke M; Libby, Laura A; Inhoff, Marika C; Ranganath, Charan

2017-06-08

Maintaining items in an appropriate sequence is important for many daily activities; however, remarkably little is known about the neural basis of human temporal working memory. Prior work suggests that the prefrontal cortex (PFC) and medial temporal lobe (MTL), including the hippocampus, play a role in representing information about temporal order. The involvement of these areas in successful temporal working memory, however, is less clear. Additionally, it is unknown whether regions in the PFC and MTL support temporal working memory across different timescales, or at coarse or fine levels of temporal detail. To address these questions, participants were scanned while completing 3 working memory task conditions (Group, Position and Item) that were matched in terms of difficulty and the number of items to be actively maintained. Group and Position trials probed temporal working memory processes, requiring the maintenance of hierarchically organized coarse and fine temporal information, respectively. To isolate activation related to temporal working memory, Group and Position trials were contrasted against Item trials, which required detailed working memory maintenance of visual objects. Results revealed that working memory encoding and maintenance of temporal information relative to visual information was associated with increased activation in dorsolateral PFC (DLPFC), and perirhinal cortex (PRC). In contrast, maintenance of visual details relative to temporal information was characterized by greater activation of parahippocampal cortex (PHC), medial and anterior PFC, and retrosplenial cortex. In the hippocampus, a dissociation along the longitudinal axis was observed such that the anterior hippocampus was more active for working memory encoding and maintenance of visual detail information relative to temporal information, whereas the posterior hippocampus displayed the opposite effect. Posterior parietal cortex was the only region to show sensitivity to temporal working memory across timescales, and was particularly involved in the encoding and maintenance of fine temporal information relative to maintenance of temporal information at more coarse timescales. Collectively, these results highlight the involvement of PFC and MTL in temporal working memory processes, and suggest a dissociation in the type of working memory information represented along the longitudinal axis of the hippocampus. Copyright © 2017 Elsevier B.V. All rights reserved.

Hanford Site Environmental Restoration Program 1994 fiscal year work plan. Work breakdown structure 2.0: Revision 1

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

Site Management System (SMS) guidance requires a Fiscal Year Work Plan (FYWP) to be prepared for the Environmental Restoration (ER) Mission Area and all related programs. This revision is a complete update to cover the FY 1994 time period. This document describes the overall ER Missions Area and provides FYWP appendices for each of the following five program areas: Remedial Action (RA); Decontamination and Decommissioning (D&D); Project Management and Support (PM&S); Surveillance and Maintenance (S&M); and Disposal Facilities (DF).

Changes in the mean hearing threshold levels in military aircraft maintenance conscripts.

PubMed

Park, Won-Ju; Moon, Jai-Dong

2016-11-01

Aircraft maintenance crews are constantly exposed to severe aircraft noise. The purpose of this study was to verify whether noise from aircraft adversely affects the hearing threshold levels (HTLs) of aircraft maintenance conscripts during their 2 years of mandatory military service. This study included 3,000 male aircraft maintenance conscripts who work in the military runway area. We measured and analyzed HTLs at 2-4 kHz. The duration of exposure to noise increased with an increase in rank; however, HTLs showed a tendency to decrease. We attributed such contradicting results to the learning effect and adaptation to military service. However, we suspected that sudden deafness in 6 conscripts (0.2%) was due to loud noise in the runway area during military service. The effectiveness of the hearing conservation program for short-term military service personnel could be increased by focusing on preventing sudden deafness and preenlistment baseline audiogram tests.

WEST ELEVATION OF USAIR MAINTENANCE HANGAR AT GREATER BUFFALO INTERNATIONAL ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

WEST ELEVATION OF USAIR MAINTENANCE HANGAR AT GREATER BUFFALO INTERNATIONAL AIRPORT. A BOEING 737-200 HAS BEEN TOWED IN FOR AN OVERNIGHT (BALANCE) CHECK. THE TAIL DOCK STANDS ARE IN POSITION AT THE REAR OF THE AIRCRAFT TO FACILITATE INSPECTION. MAINTENANCE CREWS PERFORM NIGHTLY SERVICE ON UP TO 6 AIRCRAFT. THE NORMAL SEQUENCE OF 12 ROUTINE CHECKS COVERS SEVEN BASIC AREAS: INTERIOR, EXTERIOR, WINGS, LANDING GEAR, TAIL, AUXILIARY POWER UNIT (APU), AND ENGINES. THE WORK FORCE CONSISTS OF 5 INSPECTORS, 3 LEAD MECHANICS, AND 24 MECHANICS; NIGHTLY SCHEDULES ARE COORDINATED BY A PLANNER. - Greater Buffalo International Airport, Maintenance Hangar, Buffalo, Erie County, NY

Working Memory: Maintenance, Updating, and the Realization of Intentions

PubMed Central

Nyberg, Lars; Eriksson, Johan

2016-01-01

“Working memory” refers to a vast set of mnemonic processes and associated brain networks, relates to basic intellectual abilities, and underlies many real-world functions. Working-memory maintenance involves frontoparietal regions and distributed representational areas, and can be based on persistent activity in reentrant loops, synchronous oscillations, or changes in synaptic strength. Manipulation of content of working memory depends on the dorsofrontal cortex, and updating is realized by a frontostriatal ‘“gating” function. Goals and intentions are represented as cognitive and motivational contexts in the rostrofrontal cortex. Different working-memory networks are linked via associative reinforcement-learning mechanisms into a self-organizing system. Normal capacity variation, as well as working-memory deficits, can largely be accounted for by the effectiveness and integrity of the basal ganglia and dopaminergic neurotransmission. PMID:26637287

Evidence for a double dissociation of articulatory rehearsal and non-articulatory maintenance of phonological information in human verbal working memory.

PubMed

Trost, Sarah; Gruber, Oliver

2012-01-01

Recent functional neuroimaging studies have provided evidence that human verbal working memory is represented by two complementary neural systems, a left lateralized premotor-parietal network implementing articulatory rehearsal and a presumably phylogenetically older bilateral anterior-prefrontal/inferior-parietal network subserving non-articulatory maintenance of phonological information. In order to corroborate these findings from functional neuroimaging, we performed a targeted behavioural study in patients with very selective and circumscribed brain lesions to key regions suggested to support these different subcomponents of human verbal working memory. Within a sample of over 500 neurological patients assessed with high-resolution structural magnetic resonance imaging, we identified 2 patients with corresponding brain lesions, one with an isolated lesion to Broca's area and the other with a selective lesion bilaterally to the anterior middle frontal gyrus. These 2 patients as well as groups of age-matched healthy controls performed two circuit-specific verbal working memory tasks. In this way, we systematically assessed the hypothesized selective behavioural effects of these brain lesions on the different subcomponents of verbal working memory in terms of a double dissociation. Confirming prior findings, the lesion to Broca's area led to reduced performance under articulatory rehearsal, whereas the non-articulatory maintenance of phonological information was unimpaired. Conversely, the bifrontopolar brain lesion was associated with impaired non-articulatory phonological working memory, whereas performance under articulatory rehearsal was unaffected. The present experimental neuropsychological study in patients with specific and circumscribed brain lesions confirms the hypothesized double dissociation of two complementary brain systems underlying verbal working memory in humans. In particular, the results demonstrate the functional relevance of the anterior prefrontal cortex for non-articulatory maintenance of phonological information and, in this way, provide further support for the evolutionary-based functional-neuroanatomical model of human working memory. Copyright © 2012 S. Karger AG, Basel.

39. INTERIOR VIEW TO THE NORTH OF A WORK STATION ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

39. INTERIOR VIEW TO THE NORTH OF A WORK STATION WITH MANIPULATOR ARMS IN THE SOUTH CORRIDOR OF THE SECOND FLOOR. - Nevada Test Site, Reactor Maintenance Assembly & Dissassembly Facility, Area 25, Jackass Flats, Junction of Roads F & G, Mercury, Nye County, NV

Going Paperless

NASA Technical Reports Server (NTRS)

1999-01-01

Sentel Corporation has commercialized NASA's Electronic Portable Information Collection (EPIC) System, which stemmed from a NASA Kennedy Space Center SBIR contract. NASA and Sentel designed, built, and tested work authorization procedures used as a paperless procedures system for Space Shuttle and International Space Station payload processing operations. EPIC is now being applied to various markets including; airplane maintenance, aerospace system data management, shipbuilding industries, shipping industries, law enforcement agencies, and public utilities. KSC is planning a pilot program to use EPIC at the Hypergol Maintenance Facility. In addition, Ames Research Center and KSC are working together to apply EPIC to the area of wireless communication.

Service contract with periodic preventive maintenance for a dump truck sold with a two-dimensional warranty

NASA Astrophysics Data System (ADS)

Nasrum, A.; Pasaribu, U. S.; Husniah, H.

2016-02-01

This paper deals with maintenance service contract for a dump truck sold with a two-dimensional warranties. We consider a situation where an agent offers two maintenance contract options and the owner of the equipment has to select the optimal option either the OEM carried out all repairs and preventive maintenance activities (option one) or the OEM only carries out failure while the costumer undertakes preventive maintenance action in-house (option two). As the number of preventive maintenance and corrective maintenance that occurs in the area of servicing contracts is very influential in determining the value of the contract, we have to determine the optimal time between preventive maintenance that can minimize the cost of repair in the contract area. Moreover, we also study the maintenance service contract considering reduction of the intensity function after preventive maintenance from both the owner and OEM point of views. In this paper, we use a Weibull intensity function to consider a product with increasing failure intensity. We use a non-cooperative game formulation to determine the optimal price structure (i.e., the contract price and repair cost) for the OEM and the owner. A numerical example derived from the model has shown that if the owner choose option one then the owner obtain a higher profit compared with the profit resulted from option two. The result agree with earlier work which uses the accelerated failure time (AFT) for the failure modeling, while here we model the failure of the dump truck without the use of the AFT.

6. INTERIOR VIEW TO THE EAST OF SOUTHEAST CORNER OF ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

6. INTERIOR VIEW TO THE EAST OF SOUTHEAST CORNER OF THE HOT BAY. A LARGE MANIPULATOR ARM AND HORIZONTAL TRACKING SYSTEM IS SHOWN ABOVE SMALLER MANIPULATOR ARM WORK STATIONS. ASSOCIATED WITH THE WORK STATIONS ARE OBSERVATION WINDOWS. - Nevada Test Site, Engine Maintenance Assembly & Disassembly Facility, Area 25, Jackass Flats, Mercury, Nye County, NV

14. VIEW IN THE WEST OPERATING GALLERY OF POSTMORTEM CELL ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

14. VIEW IN THE WEST OPERATING GALLERY OF POST-MORTEM CELL WORK STATION AND MANIPULATOR ARMS. - Nevada Test Site, Engine Maintenance Assembly & Disassembly Facility, Area 25, Jackass Flats, Mercury, Nye County, NV

30 CFR 77.900-2 - Testing, examination, and maintenance of circuit breakers; record.

Code of Federal Regulations, 2011 CFR

2011-07-01

... protecting low- and medium-voltage circuits serving three-phase alternating current equipment and such record... AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits...

30 CFR 77.900-1 - Testing, examination, and maintenance of circuit breakers; procedures.

Code of Federal Regulations, 2011 CFR

2011-07-01

... protecting low- and medium-voltage circuits serving portable or mobile three-phase alternating current... AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits...

30 CFR 77.900-2 - Testing, examination, and maintenance of circuit breakers; record.

Code of Federal Regulations, 2010 CFR

2010-07-01

... protecting low- and medium-voltage circuits serving three-phase alternating current equipment and such record... AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits...

30 CFR 77.900-1 - Testing, examination, and maintenance of circuit breakers; procedures.

Code of Federal Regulations, 2010 CFR

2010-07-01

... protecting low- and medium-voltage circuits serving portable or mobile three-phase alternating current... AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES Low- and Medium-Voltage Alternating Current Circuits...

40 CFR Table 2 to Subpart Jjjjjj... - Work Practice Standards, Emission Reduction Measures, and Management Practices

Code of Federal Regulations, 2012 CFR

2012-07-01

... Hazardous Air Pollutants for Industrial, Commercial, and Institutional Boilers Area Sources Pt. 63, Subpt... of available architectural and engineering plans, facility operation and maintenance procedures and...

40 CFR Table 2 to Subpart Jjjjjj... - Work Practice Standards, Emission Reduction Measures, and Management Practices

Code of Federal Regulations, 2011 CFR

2011-07-01

... Hazardous Air Pollutants for Industrial, Commercial, and Institutional Boilers Area Sources Pt. 63, Subpt... of available architectural and engineering plans, facility operation and maintenance procedures and...

Causal evidence for frontal involvement in memory target maintenance by posterior brain areas during distracter interference of visual working memory

PubMed Central

Feredoes, Eva; Heinen, Klaartje; Weiskopf, Nikolaus; Ruff, Christian; Driver, Jon

2011-01-01

Dorsolateral prefrontal cortex (DLPFC) is recruited during visual working memory (WM) when relevant information must be maintained in the presence of distracting information. The mechanism by which DLPFC might ensure successful maintenance of the contents of WM is, however, unclear; it might enhance neural maintenance of memory targets or suppress processing of distracters. To adjudicate between these possibilities, we applied time-locked transcranial magnetic stimulation (TMS) during functional MRI, an approach that permits causal assessment of a stimulated brain region's influence on connected brain regions, and evaluated how this influence may change under different task conditions. Participants performed a visual WM task requiring retention of visual stimuli (faces or houses) across a delay during which visual distracters could be present or absent. When distracters were present, they were always from the opposite stimulus category, so that targets and distracters were represented in distinct posterior cortical areas. We then measured whether DLPFC-TMS, administered in the delay at the time point when distracters could appear, would modulate posterior regions representing memory targets or distracters. We found that DLPFC-TMS influenced posterior areas only when distracters were present and, critically, that this influence consisted of increased activity in regions representing the current memory targets. DLPFC-TMS did not affect regions representing current distracters. These results provide a new line of causal evidence for a top-down DLPFC-based control mechanism that promotes successful maintenance of relevant information in WM in the presence of distraction. PMID:21987824

Design guidelines for remotely maintainable equipment

NASA Technical Reports Server (NTRS)

Clarke, Margaret M.; Manouchehri, Davoud

1988-01-01

The quantity and complexity of on-orbit assets will increase significantly over the next decade. Maintaining and servicing these costly assets represent a difficult challenge. Three general methods are proposed to maintain equipment while it is still in orbit: an extravehicular activity (EVA) crew can perform the task in an unpressurized maintenance area outside any space vehicle; an intravehicular activity (IVA) crew can perform the maintenance in a shirt sleeve environment, perhaps at a special maintenance work station in a space vehicle; or a telerobotic manipulator can perform the maintenance in an unpressurized maintenance area at a distance from the crew (who may be EVA, IVA, or on the ground). However, crew EVA may not always be possible; the crew may have other demands on their time that take precedence. In addition, the orbit of the tasks themselves may be impossible for crew entry. Also crew IVA may not always be possible as option for equipment maintenance. For example, the equipment may be too large to fit through the vehicle airlock. Therefore, in some circumstances, the third option, telerobotic manipulation, may be the only feasible option. Telerobotic manipulation has, therefore, an important role for on-orbit maintenance. It is not only used for the reasons outlined above, but also used in some cases as backup to the EVA crew in an orbit that they can reach.

Linking better shiftwork arrangements with safety and health management systems.

PubMed

Kogi, Kazutaka

2004-12-01

Various support measures useful for promoting joint change approaches to the improvement of both shiftworking arrangements and safety and health management systems were reviewed. A particular focus was placed on enterprise-level risk reduction measures linking working hours and management systems. Voluntary industry-based guidelines on night and shift work for department stores and the chemical, automobile and electrical equipment industries were examined. Survey results that had led to the compilation of practicable measures to be included in these guidelines were also examined. The common support measures were then compared with ergonomic checkpoints for plant maintenance work involving irregular nightshifts. On the basis of this analysis, a new night and shift work checklist was designed. Both the guidelines and the plant maintenance work checkpoints were found to commonly cover multiple issues including work schedules and various job-related risks. This close link between shiftwork arrangements and risk management was important as shiftworkers in these industries considered teamwork and welfare services to be essential for managing risks associated with night and shift work. Four areas found suitable for participatory improvement by managers and workers were work schedules, ergonomic work tasks, work environment and training. The checklist designed to facilitate participatory change processes covered all these areas. The checklist developed to describe feasible workplace actions was suitable for integration with comprehensive safety and health management systems and offered valuable opportunities for improving working time arrangements and job content together.

Forming a Turbomachinery Seals Working Group - An Overview and Discussion

NASA Technical Reports Server (NTRS)

Proctor, Margaret P.

2007-01-01

A proposal to form a Turbomachinery Seals Working Group is discussed. Survey responses regarding the purpose, membership, and meeting frequency are presented as well as the areas of expertise and experience of the respondents. The types of seals used, designed, or sold, current work, and technical challenges of turbomachinery seals, their materials, analysis, geometry, manufacturing, maintenance, testing, and incorporation into engine systems are also presented.

A Comparative Evaluation of the Effects of the Implementation of the Production Oriented Maintenance Organization (POMO) on Aircraft Maintenance

DTIC Science & Technology

1978-09-01

Division AREA & WORK UNIT NUMBERS School of Systems and Logistics’ Air Force Institute of Technology,WPAFB,OH II. CONTROLLING OFFICE NAME AND ADDRESS 12 ...STRUCTURE) ............. ................ 9) 12 . SUMMARY OF ALL ANALYSIS RESUILT,"S ........ ........ 94 vii i LIST OF FIGURES Figure Page 1. Deputy...ness Rate (Variable 4) .... ............ ... 81 12 . Graph of Data Values for Abort Rate (Variable 5 e) . ..................... 82 13. Graph of Data

Kinesthetic working memory and action control within the dorsal stream.

PubMed

Fiehler, Katja; Burke, Michael; Engel, Annerose; Bien, Siegfried; Rösler, Frank

2008-02-01

There is wide agreement that the "dorsal (action) stream" processes visual information for movement control. However, movements depend not only on vision but also on tactile and kinesthetic information (=haptics). Using functional magnetic resonance imaging, the present study investigates to what extent networks within the dorsal stream are also utilized for kinesthetic action control and whether they are also involved in kinesthetic working memory. Fourteen blindfolded participants performed a delayed-recognition task in which right-handed movements had to be encoded, maintained, and later recognized without any visual feedback. Encoding of hand movements activated somatosensory areas, superior parietal lobe (dorsodorsal stream), anterior intraparietal sulcus (aIPS) and adjoining areas (ventrodorsal stream), premotor cortex, and occipitotemporal cortex (ventral stream). Short-term maintenance of kinesthetic information elicited load-dependent activity in the aIPS and adjacent anterior portion of the superior parietal lobe (ventrodorsal stream) of the left hemisphere. We propose that the action representation system of the dorsodorsal and ventrodorsal stream is utilized not only for visual but also for kinesthetic action control. Moreover, the present findings demonstrate that networks within the ventrodorsal stream, in particular the left aIPS and closely adjacent areas, are also engaged in working memory maintenance of kinesthetic information.

Contribution to the Optimization of Strategy of Maintenance by Lean Six Sigma

NASA Astrophysics Data System (ADS)

Youssouf, Ayadi; Rachid, Chaib; Ion, Verzea

The efficiency of the maintenance of the industrial systems is a major economic stake for their business concern. The main difficulties and the sources of ineffectiveness live in the choice of the actions of maintenance especially when the machine plays a vital role in the process of production. But as Algeria has embarked on major infrastructure projects in transport, housing, automobile, manufacturing industry and construction (factories, housing, highway, subway, tram, etc.) requiring new implications on maintenance strategies that meet industry requirements imposed by the exploitation. From then on and seen the importance of the maintenance on the economic market and sound impacts on the performances of the installations, methods of optimization were developed. For this purpose, to ensure the survival of businesses, be credible, contributing and competitive in the market, maintenance services must continually adapt to the progress of technical areas, technological and organizational even help maintenance managers to construct or to modify maintenance strategies, objective of this work. Our contribution in this work focuses on the optimization of maintenance for industrial systems by the use of Lean six Sigma bases. Lean Six Sigma is a method of improving the quality and profitability based on mastering statically of process and it is also a management style that based on a highly regulated organization dedicated to managing project. The method is based on five main steps summarized in the acronym (DMAIC): Define Measure, Analyze, Improve and Control. Application of the method on the maintenance processes with using maintenance methods during the five phases of the method will help to reduce costs and losses in order to strive for optimum results in terms of profit and quality.

Engineering works and the tidal Chesapeake

NASA Technical Reports Server (NTRS)

Hargis, W. J., Jr.

1972-01-01

The tidal tributaries of the ocean and coastal areas of the mid-Atlantic region and the ecological significance of engineering projects are discussed. The effects of engineering works on maritime environments and resources, with the Chesapeake Bay as the area of prime interest are examined. Significant engineering projects, both actual and proposed, are described. The conflict of navigational demands and maintenance of an estuarine environment for commercial and sport fishing and recreation is described. Specific applications of remote sensors for analyzing ecological conditions of the bay are included.

[Dust and silica exposure on metallurgical furnace maintenance using refractory materials].

PubMed

Garattini, S; Barbieri, P G; Bottone, F; Brunelli, E; Carminati, F; Chiari, R; Sarnico, M

2012-01-01

In the metallurgical industries the silica risk has long been known, particularly for the refractoryes maintenance workers. The maintenance of furnaces, ladles and tundisches refractory linings, on the current organization of production, is provided by companies under contract. The information available about the characterization of risk for this group of workers are at present inadequate. The study investigates the exposure to dust, also containing free crystalline silica (SLC), through the analysis of samples of commercial products used in the reconstruction of refractory linings of furnaces, ladles and tundisches, materials from the demolition of refractory articles and dust from work areas. It also presents the results of an environmental investigation conducted during the demolition and reconstruction of the refractory in three steel mills. The Authors, by the numerous inspections and the systematic survey of working conditions, have formulated a SLC risk profile and some proposals for prevention.

Diagnosing Physical Plant Operation

ERIC Educational Resources Information Center

McKay, B. P.; Smith, H. W.

1972-01-01

Describes a survey designed to help administrators evaluate functional aspects, adequacy of employee work areas, quality of housekeeping methods, maintenance response, interior and exterior appearances, alteration and renovation satisfaction, employee feelings about parking adequacy, plant security, and attraction and function of roads and…

Mortality of a cohort of workers in the styrene-butadiene polymer manufacturing industry (1943-1982).

PubMed Central

Matanoski, G M; Santos-Burgoa, C; Schwartz, L

1990-01-01

A cohort of 12,110 male workers employed 1 or more years in eight styrene-butadiene polymer (SBR) manufacturing plants in the United States and Canada has been followed for mortality over a 40-year period, 1943 to 1982. The all-cause mortality of these workers was low [standardized mortality ratio (SMR) = 0.81] compared to that of the general population. However, some specific sites of cancers had SMRs that exceeded 1.00. These sites were then examined by major work divisions. The sites of interest included leukemia and non-Hodgkin's lymphoma in whites. The SMRs for cancers of the digestive tract were higher than expected, especially esophageal cancer in whites and stomach cancer in blacks. The SMR for arteriosclerotic heart disease in black workers was significantly higher than would be expected based on general population rates. Employees were assigned to a work area based on job longest held. The SMRs for specific diseases differed by work area. Production workers showed increased SMRs for hematologic neoplasms and maintenance workers, for digestive cancers. A significant excess SMR for arteriosclerotic heart disease occurred only in black maintenance workers, although excess mortality from this disease occurred in blacks regardless of where they worked the longest. A significant excess SMR for rheumatic heart disease was associated with work in the combined, all-other work areas. For many causes of death, there were significant deficits in the SMRs. PMID:2401250

Hypergol Maintenance Facility Hazardous Waste South Staging Areas, SWMU 070 Corrective Measures Implementation

NASA Technical Reports Server (NTRS)

Miller, Ralinda R.

2016-01-01

This document presents the Corrective Measures Implementation (CMI) Year 10 Annual Report for implementation of corrective measures at the Hypergol Maintenance Facility (HMF) Hazardous Waste South Staging Areas at Kennedy Space Center, Florida. The work is being performed by Tetra Tech, Inc., for the National Aeronautics and Space Administration (NASA) under Indefinite Delivery Indefinite Quantity (IDIQ) NNK12CA15B, Task Order (TO) 07. Mr. Harry Plaza, P.E., of NASA's Environmental Assurance Branch is the Remediation Project Manager for John F. Kennedy Space Center. The Tetra Tech Program Manager is Mr. Mark Speranza, P.E., and the Tetra Tech Project Manager is Robert Simcik, P.E.

WOGEN. Work Order Generation Macros for Word Perfect 6.X for Windows

DOE Office of Scientific and Technical Information (OSTI.GOV)

Grenz, G.

Included are three general WP macros (two independent and one multiple) and a template used at the Test Reactor Area (TRA) for the generation of the Work Orders (WO`s) used to perform corrective and preventative maintenance, as well as modifications of existing systems and installation of new systems. They incorporate facility specific requirements as well as selected federal/state orders. These macros are used to generate a WP document which is then converted into ASCII text for import to the maintenance software. Currently we are using MCRS but should be compatible with other platforms such as Passport. Reference the included filemore » Wogen.txt for installation and usage instructions.« less

Work Order Generation Macros for Word Perfect 6.X for Windows

DOE Office of Scientific and Technical Information (OSTI.GOV)

Grenz, Gordon G.

Included are three general WP macros (two independent and one multiple) and a template used at the Test Reactor Area (TRA) for the generation of the Work Orders (WO's) used to perform corrective and preventative maintenance, as well as modifications of existing systems and installation of new systems. They incorporate facility specific requirements as well as selected federal/state orders. These macros are used to generate a WP document which is then converted into ASCII text for import to the maintenance software. Currently we are using MCRS but should be compatible with other platforms such as Passport. Reference the included filemore » Wogen.txt for installation and usage instructions.« less

Role of Prefrontal Persistent Activity in Working Memory

PubMed Central

Riley, Mitchell R.; Constantinidis, Christos

2016-01-01

The prefrontal cortex is activated during working memory, as evidenced by fMRI results in human studies and neurophysiological recordings in animal models. Persistent activity during the delay period of working memory tasks, after the offset of stimuli that subjects are required to remember, has traditionally been thought of as the neural correlate of working memory. In the last few years several findings have cast doubt on the role of this activity. By some accounts, activity in other brain areas, such as the primary visual and posterior parietal cortex, is a better predictor of information maintained in visual working memory and working memory performance; dynamic patterns of activity may convey information without requiring persistent activity at all; and prefrontal neurons may be ill-suited to represent non-spatial information about the features and identity of remembered stimuli. Alternative interpretations about the role of the prefrontal cortex have thus been suggested, such as that it provides a top-down control of information represented in other brain areas, rather than maintaining a working memory trace itself. Here we review evidence for and against the role of prefrontal persistent activity, with a focus on visual neurophysiology. We show that persistent activity predicts behavioral parameters precisely in working memory tasks. We illustrate that prefrontal cortex represents features of stimuli other than their spatial location, and that this information is largely absent from early cortical areas during working memory. We examine memory models not dependent on persistent activity, and conclude that each of those models could mediate only a limited range of memory-dependent behaviors. We review activity decoded from brain areas other than the prefrontal cortex during working memory and demonstrate that these areas alone cannot mediate working memory maintenance, particularly in the presence of distractors. We finally discuss the discrepancy between BOLD activation and spiking activity findings, and point out that fMRI methods do not currently have the spatial resolution necessary to decode information within the prefrontal cortex, which is likely organized at the micrometer scale. Therefore, we make the case that prefrontal persistent activity is both necessary and sufficient for the maintenance of information in working memory. PMID:26778980

Olfactory short-term memory encoding and maintenance - an event-related potential study.

PubMed

Lenk, Steffen; Bluschke, Annet; Beste, Christian; Iannilli, Emilia; Rößner, Veit; Hummel, Thomas; Bender, Stephan

2014-09-01

This study examined whether the memory encoding and short term maintenance of olfactory stimuli is associated with neurophysiological activation patterns which parallel those described for sensory modalities such as vision and auditory. We examined olfactory event-related potentials in an olfactory change detection task in twenty-four healthy adults and compared the measured activation to that found during passive olfactory stimulation. During the early olfactory post-processing phase, we found a sustained negativity over bilateral frontotemporal areas in the passive perception condition which was enhanced in the active memory task. There was no significant lateralization in either experimental condition. During the maintenance interval at the end of the delay period, we still found sustained activation over bilateral frontotemporal areas which was more negative in trials with correct - as compared to incorrect - behavioural responses. This was complemented by a general significantly stronger frontocentral activation. Summarizing, we were able to show that olfactory short term memory involves a parallel sequence of activation as found in other sensory modalities. In addition to olfactory-specific frontotemporal activations in the memory encoding phase, we found slow cortical potentials over frontocentral areas during the memory maintenance phase indicating the activation of a supramodal memory maintenance system. These findings could represent the neurophysiological underpinning of the 'olfactory flacon', the olfactory counter-part to the visual sketchpad and phonological loop embedded in Baddeley's working memory model. Copyright © 2014 Elsevier Inc. All rights reserved.

The engine maintenance scheduling by using reliability centered maintenance method and the identification of 5S application in PT. XYZ

NASA Astrophysics Data System (ADS)

Sembiring, N.; Panjaitan, N.; Saragih, A. F.

2018-02-01

PT. XYZ is a manufacturing company that produces fresh fruit bunches (FFB) to Crude Palm Oil (CPO) and Palm Kernel Oil (PKO). PT. XYZ consists of six work stations: receipt station, sterilizing station, thressing station, pressing station, clarification station, and kernelery station. So far, the company is still implementing corrective maintenance maintenance system for production machines where the machine repair is done after damage occurs. Problems at PT. XYZ is the absence of scheduling engine maintenance in a planned manner resulting in the engine often damaged which can disrupt the smooth production. Another factor that is the problem in this research is the kernel station environment that becomes less convenient for operators such as there are machines and equipment not used in the production area, slippery, muddy, scattered fibers, incomplete use of PPE, and lack of employee discipline. The most commonly damaged machine is in the seed processing station (kernel station) which is cake breaker conveyor machine. The solution of this problem is to propose a schedule plan for maintenance of the machine by using the method of reliability centered maintenance and also the application of 5S. The result of the application of Reliability Centered maintenance method is obtained four components that must be treated scheduled (time directed), namely: for bearing component is 37 days, gearbox component is 97 days, CBC pen component is 35 days and conveyor pedal component is 32 days While after identification the application of 5S obtained the proposed corporate environmental improvement measures in accordance with the principles of 5S where unused goods will be moved from the production area, grouping goods based on their use, determining the procedure of cleaning the production area, conducting inspection in the use of PPE, and making 5S slogans.

Development works on nickel/hydrogen cells. [for satellite energy storage

NASA Technical Reports Server (NTRS)

Gutmann, G.

1982-01-01

Experiments were performed to reduce the costs for NI/H2 cells by using nickel oxide electrodes with high capacity per unit area. No maintenance requirements, long cycle life, insensitivity to overcharge and cell reversal, and high power capability were revealed.

38 CFR 61.1 - Definitions.

Code of Federal Regulations, 2011 CFR

2011-07-01

... condition of schizophrenia or major affective disorder (including bipolar disorder) or posttraumatic stress... assessment on a standardized scale of any serious symptomology or serious impairment in the areas of work... related to administering the grant after the award), maintenance, repair and security for the supportive...

38 CFR 61.1 - Definitions.

Code of Federal Regulations, 2012 CFR

2012-07-01

... condition of schizophrenia or major affective disorder (including bipolar disorder) or posttraumatic stress... assessment on a standardized scale of any serious symptomology or serious impairment in the areas of work... related to administering the grant after the award), maintenance, repair and security for the supportive...

Targeted Cleaning.

ERIC Educational Resources Information Center

Frank, David J.

1998-01-01

Discusses the creation of an effective carpet vacuuming program by combining area usage assessment and vacuuming requirements with a scheduling plan. Also explains vacuum cleaner suction and filtration and how it makes custodian work more efficient. A complementary article discusses creating an effective floor-maintenance plan for resilient…

38 CFR 39.62 - Space criteria for support facilities.

Code of Federal Regulations, 2011 CFR

2011-07-01

... assignment for the next 10 years. (a) Administrative building. The administrative building should be.../office/equipment/work area); (5) Family/conference room; (6) Military honors team; (7) Refreshment unit; (8) Housekeeping aide's closet; and (9) Restroom facilities. (b) Maintenance/service building. The...

Dissecting contributions of prefrontal cortex and fusiform face area to face working memory.

PubMed

Druzgal, T Jason; D'Esposito, Mark

2003-08-15

Interactions between prefrontal cortex (PFC) and stimulus-specific visual cortical association areas are hypothesized to mediate visual working memory in behaving monkeys. To clarify the roles for homologous regions in humans, event-related fMRI was used to assess neural activity in PFC and fusiform face area (FFA) of subjects performing a delay-recognition task for faces. In both PFC and FFA, activity increased parametrically with memory load during encoding and maintenance of face stimuli, despite quantitative differences in the magnitude of activation. Moreover, timing differences in PFC and FFA activation during memory encoding and retrieval implied a context dependence in the flow of neural information. These results support existing neurophysiological models of visual working memory developed in the nonhuman primate.

The greenGain project - Biomass from landscape conservation and maintenance work for renewable energy production in the EU

NASA Astrophysics Data System (ADS)

Clalüna, Aline; Baumgarten, Wibke; García Galindo, Daniel; Lenz, Klaus; Doležal, Jan; De Filippi, Federico; Lorenzo, Joaquín; Montagnoli, Louis

2017-04-01

The project greenGain is looking for solutions to increase the energy production with regional and local biomass from landscape conservation and maintenance work, which is performed in the public interest. The relevant resources analysed in the greenGain model regions are, among others, biomass residues from clearing invasive vegetation in marginal agricultural lands in Spain, and residues from abandoned vineyards and olive groves in landscape protected areas in Italy. The main target groups are regional and local players who are responsible for maintenance and conservation work and for the biomass residue management in their regions. Moreover, the focus will be on service providers - including farmers and forest owners, their associations, NGOs, energy providers and consumers. Local companies, municipalities and public authorities are collaborating to identify the still underutilised non-food biomass resources and to discuss the way to integrate them into the local and regional biomass markets. Since the start of the three year project in January 2015, the partners from Italy, Spain, Czech Republic and Germany analysed, among other, the biomass feedstock potential coming from landscape maintenance work, and assessed various technological options to utilise this type of biomass. Further, political, legal and environmental aspects as well as awareness raising and public acceptance actions regarding the energetic use of biomass from public areas were assessed. greenGain also facilitates the exchange between model regions and other similar relevant players in the EU and shares examples of good practice. General guidelines will be prepared to guarantee a wide dissemination to other regions in the EU. Thus, the project shows how to build-up reliable knowledge on local availability of this feedstock and provides know-how concerning planning, harvesting, pre-treatment, storage and sustainable conversion pathways to a wide range of stakeholders in the EU.

Maintenance Process Strategic Analysis

NASA Astrophysics Data System (ADS)

Jasiulewicz-Kaczmarek, M.; Stachowiak, A.

2016-08-01

The performance and competitiveness of manufacturing companies is dependent on the availability, reliability and productivity of their production facilities. Low productivity, downtime, and poor machine performance is often linked to inadequate plant maintenance, which in turn can lead to reduced production levels, increasing costs, lost market opportunities, and lower profits. These pressures have given firms worldwide the motivation to explore and embrace proactive maintenance strategies over the traditional reactive firefighting methods. The traditional view of maintenance has shifted into one of an overall view that encompasses Overall Equipment Efficiency, Stakeholders Management and Life Cycle assessment. From practical point of view it requires changes in approach to maintenance represented by managers and changes in actions performed within maintenance area. Managers have to understand that maintenance is not only about repairs and conservations of machines and devices, but also actions striving for more efficient resources management and care for safety and health of employees. The purpose of the work is to present strategic analysis based on SWOT analysis to identify the opportunities and strengths of maintenance process, to benefit from them as much as possible, as well as to identify weaknesses and threats, so that they could be eliminated or minimized.

38 CFR 61.1 - Definitions.

Code of Federal Regulations, 2013 CFR

2013-07-01

... post-traumatic stress disorder (PTSD), based on a diagnosis from a licensed mental health professional... in the areas of work, family relations, thinking, or mood. Default means a determination by VA that... accreditation; and similar costs related to administering the grant after the award), maintenance, repair and...

38 CFR 61.1 - Definitions.

Code of Federal Regulations, 2014 CFR

2014-07-01

... post-traumatic stress disorder (PTSD), based on a diagnosis from a licensed mental health professional... in the areas of work, family relations, thinking, or mood. Default means a determination by VA that... accreditation; and similar costs related to administering the grant after the award), maintenance, repair and...

Persistent recruitment of somatosensory cortex during active maintenance of hand images in working memory.

PubMed

Galvez-Pol, A; Calvo-Merino, B; Capilla, A; Forster, B

2018-07-01

Working memory (WM) supports temporary maintenance of task-relevant information. This process is associated with persistent activity in the sensory cortex processing the information (e.g., visual stimuli activate visual cortex). However, we argue here that more multifaceted stimuli moderate this sensory-locked activity and recruit distinctive cortices. Specifically, perception of bodies recruits somatosensory cortex (SCx) beyond early visual areas (suggesting embodiment processes). Here we explore persistent activation in processing areas beyond the sensory cortex initially relevant to the modality of the stimuli. Using visual and somatosensory evoked-potentials in a visual WM task, we isolated different levels of visual and somatosensory involvement during encoding of body and non-body-related images. Persistent activity increased in SCx only when maintaining body images in WM, whereas visual/posterior regions' activity increased significantly when maintaining non-body images. Our results bridge WM and embodiment frameworks, supporting a dynamic WM process where the nature of the information summons specific processing resources. Copyright © 2018 Elsevier Inc. All rights reserved.

Scenario-Based Specification and Evaluation of Architectures for Health Monitoring of Aerospace Structures

NASA Technical Reports Server (NTRS)

Mukkamala, Ravi; Sundaram, P.

2001-01-01

HUMS systems have been an area of increased research in the recent times due to two main reasons: (a) increase in the occurrences of accidents in the aerospace, and (b) stricter FAA regulations on aircrafts maintenance [2]. There are several problems associated with the maintenance of aircrafts that the HUMS systems can solve through the use of several monitoring technologies.This paper documents our methodology of employing scenarios in the specification and evaluation of architecture for HUMS. Section 2 investigates related works that use scenarios in software development. Section 3 describes how we use scenarios in our work, which is followed by a demonstration of our methods in the development of KUMS in section 4. Conclusion summarizes results.

Probabilistic modeling of condition-based maintenance strategies and quantification of its benefits for airliners

NASA Astrophysics Data System (ADS)

Pattabhiraman, Sriram

Airplane fuselage structures are designed with the concept of damage tolerance, wherein small damage are allowed to remain on the airplane, and damage that otherwise affect the safety of the structure are repaired. The damage critical to the safety of the fuselage are repaired by scheduling maintenance at pre-determined intervals. Scheduling maintenance is an interesting trade-off between damage tolerance and cost. Tolerance of larger damage would require less frequent maintenance and hence, a lower cost, to maintain a certain level of reliability. Alternatively, condition-based maintenance techniques have been developed using on-board sensors, which track damage continuously and request maintenance only when the damage size crosses a particular threshold. This effects a tolerance of larger damage than scheduled maintenance, leading to savings in cost. This work quantifies the savings of condition-based maintenance over scheduled maintenance. The work also quantifies converting the cost savings into weight savings. Structural health monitoring will need time to be able to establish itself as a stand-alone system for maintenance, due to concerns on its diagnosis accuracy and reliability. This work also investigates the effect of synchronizing structural health monitoring system with scheduled maintenance. This work uses on-board SHM equipment skip structural airframe maintenance (a subsect of scheduled maintenance), whenever deemed unnecessary while maintain a desired level of safety of structure. The work will also predict the necessary maintenance for a fleet of airplanes, based on the current damage status of the airplanes. The work also analyses the possibility of false alarm, wherein maintenance is being requested with no critical damage on the airplane. The work use SHM as a tool to identify lemons in a fleet of airplanes. Lemons are those airplanes that would warrant more maintenance trips than the average behavior of the fleet.

Promoting Maintenance and Generalization through Cognitive Decision Making Training

ERIC Educational Resources Information Center

Fore, Cecil, III; Riser, Susan E.

2005-01-01

This article investigates issues in the areas of work outcomes, self-determination, career decision-making skills, person centered planning, and transitional planning for students with disabilities. In particular, training in cognitive decision-making is suggested for students with mild disabilities. Educators and schools are charged with…

30 CFR 71.501 - Sanitary toilet facilities; maintenance.

Code of Federal Regulations, 2010 CFR

2010-07-01

... Section 71.501 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY HEALTH STANDARDS-SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES Sanitary Toilet Facilities at Surface Worksites of Surface Coal Mines § 71.501 Sanitary...

Maintenance of relational information in working memory leads to suppression of the sensory cortex.

PubMed

Ikkai, Akiko; Blacker, Kara J; Lakshmanan, Balaji M; Ewen, Joshua B; Courtney, Susan M

2014-10-15

Working memory (WM) for sensory-based information about individual objects and their locations appears to involve interactions between lateral prefrontal and sensory cortexes. The mechanisms and representations for maintenance of more abstract, nonsensory information in WM are unknown, particularly whether such actively maintained information can become independent of the sensory information from which it was derived. Previous studies of WM for individual visual items found increased electroencephalogram (EEG) alpha (8-13 Hz) power over posterior electrode sites, which appears to correspond to the suppression of cortical areas that represent irrelevant sensory information. Here, we recorded EEG while participants performed a visual WM task that involved maintaining either concrete spatial coordinates or abstract relational information. Maintenance of relational information resulted in higher alpha power in posterior electrodes. Furthermore, lateralization of alpha power due to a covert shift of attention to one visual hemifield was marginally weaker during storage of relational information than during storage of concrete information. These results suggest that abstract relational information is maintained in WM differently from concrete, sensory representations and that during maintenance of abstract information, posterior sensory regions become task irrelevant and are thus suppressed. Copyright © 2014 the American Physiological Society.

Dorsal and ventral working memory-related brain areas support distinct processes in contextual cueing.

PubMed

Manginelli, Angela A; Baumgartner, Florian; Pollmann, Stefan

2013-02-15

Behavioral evidence suggests that the use of implicitly learned spatial contexts for improved visual search may depend on visual working memory resources. Working memory may be involved in contextual cueing in different ways: (1) for keeping implicitly learned working memory contents available during search or (2) for the capture of attention by contexts retrieved from memory. We mapped brain areas that were modulated by working memory capacity. Within these areas, activation was modulated by contextual cueing along the descending segment of the intraparietal sulcus, an area that has previously been related to maintenance of explicit memories. Increased activation for learned displays, but not modulated by the size of contextual cueing, was observed in the temporo-parietal junction area, previously associated with the capture of attention by explicitly retrieved memory items, and in the ventral visual cortex. This pattern of activation extends previous research on dorsal versus ventral stream functions in memory guidance of attention to the realm of attentional guidance by implicit memory. Copyright © 2012 Elsevier Inc. All rights reserved.

Foale uses takes photographs of a BCAT SGSM in the U.S. Lab during Expedition 8

NASA Image and Video Library

2004-04-05

ISS008-E-20613 (5 April 2004) --- Astronaut C. Michael Foale, Expedition 8 commander and NASA ISS science officer, works with a Slow Growth Sample Module (SGSM) for the Binary Colloidal Alloy Test-3 (BCAT) experiment. The SGSM is on a mounting bracket attached to the Maintenance Work Area (MWA) table set up in the Destiny laboratory of the International Space Station (ISS).

Department of the Army FY 1994 Budget Estimates, Military Construction, Family Housing and Homeowners Assistance

DTIC Science & Technology

1993-04-01

OF WORK DESCRIPTION ESTIMATE Real Property Maintenance Repairs exceeding $15,000 $147,742,000 Major Construction Projects (1391s attached) Grafenwoehr ...ARMY APRIL 1993 3.INSTALLATION AND LOCATION 4.PROJECT TITLE Grafenwoehr Training Area Grafenwoehr , Germany Sanitary Landfill Expansion 5.PROGRAM ELEMENT...sealing work (to separate contaminants from ground water), drainage, gas exhaust lines and gas wells, gas collection lines, gas regulator station, gas

40 CFR 81.300 - Scope.

Code of Federal Regulations, 2013 CFR

2013-07-01

... boundary limits as of October 31, 1990. (2) Similarly, for planning areas, air quality maintenance areas..., air quality maintenance area, air basin, or urban growth boundary as of November 15, 1990, except for..., air quality maintenance area, air basin, or urban growth boundary as of October 31, 1990. The...

40 CFR 81.300 - Scope.

Code of Federal Regulations, 2014 CFR

2014-07-01

... boundary limits as of October 31, 1990. (2) Similarly, for planning areas, air quality maintenance areas..., air quality maintenance area, air basin, or urban growth boundary as of November 15, 1990, except for..., air quality maintenance area, air basin, or urban growth boundary as of October 31, 1990. The...

Managing Highway Maintenance: Maintenance Activities, Work Units, and Classifying Work, Unit 6, Level 2.

ERIC Educational Resources Information Center

Federal Highway Administration (DOT), Washington, DC. Offices of Research and Development.

Part of the series "Managing Highway Maintenance," the unit explains how maintenance work should be described, measured, and classified. It is designed for supervisors who need to know the mechanics of describing work. The format is a programed, self-instruction approach in which information is presented in progressive segments or…

Maintenance Performance System. Guide for Individual Technical Training in Direct Support Units. Volume 1. Training Methodology

DTIC Science & Technology

1984-01-01

903-78-C-2007 9. PERFORMING ORGANIZATION NAME AND ADDRESS 10. PROGRAM ELEMENT. PROJECT. TASK AREA & WORK UNIT NUMBERS Anacapa Sciences, Inc...of training responsibilities, and the most difficult job to perform . He is responsible for the work his section performs , as well as for training his...tasks. Relate these tasks to work done in your shop. Determine which tasks are performed frequently, rarely, and never. As you perform this review, make a

Multi-Voxel Decoding and the Topography of Maintained Information During Visual Working Memory

PubMed Central

Lee, Sue-Hyun; Baker, Chris I.

2016-01-01

The ability to maintain representations in the absence of external sensory stimulation, such as in working memory, is critical for guiding human behavior. Human functional brain imaging studies suggest that visual working memory can recruit a network of brain regions from visual to parietal to prefrontal cortex. In this review, we focus on the maintenance of representations during visual working memory and discuss factors determining the topography of those representations. In particular, we review recent studies employing multi-voxel pattern analysis (MVPA) that demonstrate decoding of the maintained content in visual cortex, providing support for a “sensory recruitment” model of visual working memory. However, there is some evidence that maintained content can also be decoded in areas outside of visual cortex, including parietal and frontal cortex. We suggest that the ability to maintain representations during working memory is a general property of cortex, not restricted to specific areas, and argue that it is important to consider the nature of the information that must be maintained. Such information-content is critically determined by the task and the recruitment of specific regions during visual working memory will be both task- and stimulus-dependent. Thus, the common finding of maintained information in visual, but not parietal or prefrontal, cortex may be more of a reflection of the need to maintain specific types of visual information and not of a privileged role of visual cortex in maintenance. PMID:26912997

Getting Mercury out of Schools.

ERIC Educational Resources Information Center

1999

This guide was prepared while working with many Massachusetts schools to remove items that contain mercury and to find suitable alternatives. It contains fact sheets on: mercury in science laboratories and classrooms, mercury in school buildings and maintenance areas, mercury in the medical office and in medical technology classrooms in vocational…

Training and Jobs for the Mentally Handicapped

ERIC Educational Resources Information Center

Salmon, Dwight

1975-01-01

The industrial arts and home maintenance curricula for TMH students are structured to train and prepare them for work, in a program for children 5 to 21. The basic unit, presented monthly by the academic classroom teacher, is daily reinforced by all special areas. Task analysis unifies teaching and evaluation. (AJ)

30 CFR 75.361 - Supplemental examination.

Code of Federal Regulations, 2013 CFR

2013-07-01

... machine parts; and (vi) § 75.1731(a)—maintenance of belt conveyor components. (b) Certification. At each..., and the time, that the examination was made. In areas required to be examined outby a working section, the certified person shall certify by initials, date, and the time at enough locations to show that...

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gonzalez Anez, Francisco

This paper presents two development projects (STARMATE and VIRMAN) focused on supporting training on maintenance. Both projects aim at specifying, designing, developing, and demonstrating prototypes allowing computer guided maintenance of complex mechanical elements using Augmented and Virtual Reality techniques. VIRMAN is a Spanish development project. The objective is to create a computer tool for maintenance training course elaborations and training delivery based on 3D virtual reality models of complex components. The training delivery includes 3D record displays on maintenance procedures with all complementary information for intervention understanding. Users are requested to perform the maintenance intervention trying to follow up themore » procedure. Users can be evaluated about the level of knowledge achieved. Instructors can check the evaluation records left during the training sessions. VIRMAN is simple software supported by a regular computer and can be used in an Internet framework. STARMATE is a forward step in the area of virtual reality. STARMATE is a European Commission project in the frame of 'Information Societies Technologies'. A consortium of five companies and one research institute shares their expertise in this new technology. STARMATE provides two main functionalities (1) user assistance for achieving assembly/de-assembly and following maintenance procedures, and (2) workforce training. The project relies on Augmented Reality techniques, which is a growing area in Virtual Reality research. The idea of Augmented Reality is to combine a real scene, viewed by the user, with a virtual scene, generated by a computer, augmenting the reality with additional information. The user interface is see-through goggles, headphones, microphone and an optical tracking system. All these devices are integrated in a helmet connected with two regular computers. The user has his hands free for performing the maintenance intervention and he can navigate in the virtual world thanks to a voice recognition system and a virtual pointing device. The maintenance work is guided with audio instructions, 2D and 3D information are directly displayed into the user's goggles: There is a position-tracking system that allows 3D virtual models to be displayed in the real counterpart positions independently of the user allocation. The user can create his own virtual environment, placing the information required wherever he wants. The STARMATE system is applicable to a large variety of real work situations. (author)« less

Test and Evaluation of Ultrasonic Additive Manufacturing (UAM) for a Large Aircraft Maintenance Shelter (LAMS) Baseplate

DTIC Science & Technology

2015-03-26

TEST AND EVALUATION OF ULTRASONIC ADDITIVE MANUFACTURING (UAM) FOR A LARGE AREA MAINTENANCE...States Government. AFIT-ENV-MS-15-M-158 TEST AND EVALUATION OF ULTRASONIC ADDITIVE MANUFACTURING FOR A LARGE AREA MAINTENANCE SHELTER...Civil Engineer (CE) operations. This research replicates a Large Area Maintenance Shelter (LAMS) baseplate design for ultrasonic additive

Radioactive contamination incidents involving protective clothing

DOE Office of Scientific and Technical Information (OSTI.GOV)

Reichelt, R.A.; Clay, M.E.; Eichorst, A.J.

1998-01-01

The study focuses on incidents at Department of Energy facilities involving the migration of radioactive contaminants through protective clothing. The authors analyzed 68 occurrence reports for the following factors: (1) type of work, (2) working conditions, (3) type of anti-contamination material; (4) area of body or clothing contaminated; and (5) nature of spread of contamination. A majority of reports identified strenuous work activities such as maintenance, construction, or decontamination and decommissioning projects. The reports also indicated adverse working conditions that included hot and humid or cramped work environments. The type of anti-contamination clothing most often identified was cotton or water-resistantmore » disposable clothing. Most of the reports also indicated contaminants migrating through perspiration-soaked areas, typically in the knees and forearms. On the basis of their survey, the authors recommend the use of improved engineering controls and resilient, breathable, waterproof protective clothing for work in hot, humid, or damp areas where the possibility of prolonged contact with contamination cannot be easily avoided or controlled. 1 ref., 6 figs., 1 tab.« less

Radioactive contamination incidents involving protective clothing

DOE Office of Scientific and Technical Information (OSTI.GOV)

Reichelt, R.; Clay, M.; Eichorst, J.

1996-10-01

The study focuses on incidents at Department of Energy (DOE) facilities involving the migration of radioactive contaminants through protective clothing. The authors analyzed 68 occurrence reports for the following factors: (1) type of work; (2) working conditions; (3) type of anti-contamination (anti-C) material; (4) area of body or clothing contaminated; and (5) nature of spread of contamination. A majority of reports identified strenuous work activities such as maintenance, construction, or decontamination and decommissioning (D&D) projects. The reports also indicated adverse working conditions that included hot and humid or cramped work environments. The type of anti-C clothing most often identified wasmore » cotton or water-resistant, disposable clothing. Most of the reports also indicated contaminants migrating through perspiration-soaked areas, typically in the knees and forearms. On the basis of their survey, the authors recommend the use of improved engineering controls and resilient, breathable, waterproof protective clothing for work in hot, humid, or damp areas where the possibility of prolonged contact with contamination cannot be easily avoided or controlled.« less

Robot arm apparatus

DOEpatents

Nachbar, Henry D.

1992-12-01

A robot arm apparatus is provided for inspecting and/or maintaining an interior of a steam generator which has an outside wall and a port for accessing the interior of the steam generator. The robot arm apparatus includes a flexible movable conduit for conveying inspection and/or maintenance apparatus from outside the steam generator to the interior of the steam generator. The flexible conduit has a terminal working end which is translated into and around the interior of the steam generator. Three motors located outside the steam generator are employed for moving the terminal working end inside the steam generator in "x", "y", and "z" directions, respectively. Commonly conducted inspection and maintenance operations include visual inspection for damaged areas, water jet lancing for cleaning sludge deposits, core boring for obtaining sludge deposits, and scrubbing of internal parts.

Robot arm apparatus

DOEpatents

Nachbar, Henry D.

1992-01-01

A robot arm apparatus is provided for inspecting and/or maintaining an interior of a steam generator which has an outside wall and a port for accessing the interior of the steam generator. The robot arm apparatus includes a flexible movable conduit for conveying inspection and/or maintenance apparatus from outside the steam generator to the interior of the steam generator. The flexible conduit has a terminal working end which is translated into and around the interior of the steam generator. Three motors located outside the steam generator are employed for moving the terminal working end inside the steam generator in "x", "y", and "z" directions, respectively. Commonly conducted inspection and maintenance operations include visual inspection for damaged areas, water jet lancing for cleaning sludge deposits, core boring for obtaining sludge deposits, and scrubbing of internal parts.

Health maintenance organization penetration and the practice location choices of new physicians: a study of large metropolitan areas in the United States.

PubMed

Escarce, J J; Polsky, D; Wozniak, G D; Pauly, M V; Kletke, P R

1998-11-01

The rapid growth of health maintenance organizations is reshaping the practice opportunities available to physicians. The practice location decisions of new physicians provide a sensitive bellwether of these changes. This study assessed the effect of health maintenance organization penetration on practice location for physicians completing graduate medical education (GME). Conditional logit regression analysis was used to determine the effect of health maintenance organization penetration on practice location, controlling for other market characteristics. Subjects were physicians who finished GME between 1989 and 1994 and who located in one of the 98 US metropolitan areas with more than 500,000 population. The outcome measure was the particular metropolitan area chosen by each new physician. Early in the study period, new generalists were significantly more likely to locate in metropolitan areas with high health maintenance organization penetration than in low penetration areas, whereas new specialists' practice location choices were not associated with health maintenance organization penetration. The likelihood of choosing a high penetration relative to a low penetration area declined with time, however, for both generalists and specialists. Consequently, by the end of the study period, health maintenance organization penetration had a weak but significant negative effect on practice location for generalists and a strong negative influence on practice location for specialists. New generalists who completed graduate medical education between 1989 and 1994 were more likely than new specialists to locate in market areas with high health maintenance organization penetration; however, the proportions of both generalists and specialists who chose high penetration areas decreased during the study period. This finding may reflect reduced practice opportunities in high penetration areas relative to low penetration areas as health maintenance organizations' systems for controlling utilization began to yield results. Alternatively, new physicians may have become more hesitant to accept available positions in high penetration areas.

78 FR 49595 - Aviation Rulemaking Advisory Committee-New Task

Federal Register 2010, 2011, 2012, 2013, 2014

2013-08-14

... the new ARAC activity and solicits membership for the Maintenance Reliability Program Working Group... establish the Maintenance Reliability Program Working Group. The working group will serve as staff to ARAC... programs. The Maintenance Reliability Program Working Group will provide advice and recommendations on the...

33. INTERIOR VIEW TO THE SOUTHWEST OF ROOM 135, A ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

33. INTERIOR VIEW TO THE SOUTHWEST OF ROOM 135, A FIRST FLOOR CORRIDOR AND VIEWING GALLERY NEXT TO THE POST-MORTEM CELLS. VIEWING AND WORK STATIONS ARE ON THE WEST WALL. - Nevada Test Site, Reactor Maintenance Assembly & Dissassembly Facility, Area 25, Jackass Flats, Junction of Roads F & G, Mercury, Nye County, NV

38. INTERIOR VIEW TO THE NORTHWEST OF THE SECOND FLOOR ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

38. INTERIOR VIEW TO THE NORTHWEST OF THE SECOND FLOOR CORRIDOR ON THE SOUTH SIDE OF THE DISASSEMBLY BAY. VIEWING AND WORK STATIONS ARE ALONG THE NORTH WALL OF THE CORRIDOR. - Nevada Test Site, Reactor Maintenance Assembly & Dissassembly Facility, Area 25, Jackass Flats, Junction of Roads F & G, Mercury, Nye County, NV

24 CFR 203.43 - Eligibility of miscellaneous type mortgages.

Code of Federal Regulations, 2011 CFR

2011-04-01

... Department of the Interior located within the town area of Coulee Dam, WA, acquired by the United States for the construction, operation, and maintenance of Grand Coulee Dam and its appurtenant works or of any... be located on the mortgaged property a dwelling unit designed principally for residential use for not...

The Learning Exchange Program: A Cooperative Venture for Realistic Job Training

ERIC Educational Resources Information Center

Wanat, John A.

1977-01-01

A brief description and evaluation of the Learning Exchange Program (LEX), a high school cooperative education program between New Jersey local school districts and the New Jersey National Guard, in which students work alongside full-time National Guard technicians in such areas as jet engine repair, helicopter maintenance, and other technical…

29 CFR 1917.111 - Maintenance and load limits.

Code of Federal Regulations, 2011 CFR

2011-07-01

... maintained. (b) Maximum safe load limits, in pounds per square foot (kilograms per square meter), of floors elevated above ground level, and pier structures over the water shall be conspicuously posted in all cargo areas. (c) Maximum safe load limits shall not be exceeded. (d) All walking and working surfaces in the...

Fire in Wildland ecosystems—opening comments

Treesearch

Tom Nichols

1995-01-01

More than 25 years ago, the pioneering work in fire ecology by Harold Biswell and others encouraged the incorporation of prescribed fire into fire management policies. However, the use in California of prescribed fire in fuels treatment, wilderness management, or ecosystem maintenance programs has not been particularly extensive. Only a fraction of wilderness areas,...

Exploring Careers in Building and Plant Maintenance.

ERIC Educational Resources Information Center

Cincinnati Public Schools, OH.

The career exploration program for grades 9 through 10, as part of a comprehensive K through 10 career development program, attempts to develop an awareness of and appreciation for work, extend knowledge of the variety of career opportunities, and provide experiences in career areas of individual interest. The document, a collection of materials…

29 CFR 776.27 - Construction which is related to covered production.

Code of Federal Regulations, 2011 CFR

2011-07-01

... machinery, tools and dies and other equipment. Functionally such work is like maintenance and repair and is... utility which serves business and manufacturing as well as residential areas would also be within the Act... premises or buildings or the appurtenances, including the machinery, tools and dies and equipment, of the...

Neurocognitive architecture of working memory

PubMed Central

Eriksson, Johan; Vogel, Edward K.; Lansner, Anders; Bergström, Fredrik; Nyberg, Lars

2015-01-01

The crucial role of working memory for temporary information processing and guidance of complex behavior has been recognized for many decades. There is emerging consensus that working memory maintenance results from the interactions among long-term memory representations and basic processes, including attention, that are instantiated as reentrant loops between frontal and posterior cortical areas, as well as subcortical structures. The nature of such interactions can account for capacity limitations, lifespan changes, and restricted transfer after working-memory training. Recent data and models indicate that working memory may also be based on synaptic plasticity, and that working memory can operate on non-consciously perceived information. PMID:26447571

Greater Working Memory Load Results in Greater Medial Temporal Activity at Retrieval

PubMed Central

Quiroz, Yakeel T.; Hasselmo, Michael E.; Stern, Chantal E.

2009-01-01

Most functional magnetic resonance imaging (fMRI) studies examining working memory (WM) load have focused on the prefrontal cortex (PFC) and have demonstrated increased prefrontal activity with increased load. Here we examined WM load effects in the medial temporal lobe (MTL) using an fMRI Sternberg task with novel complex visual scenes. Trials consisted of 3 sequential events: 1) sample presentation (encoding), 2) delay period (maintenance), and 3) probe period (retrieval). During sample encoding, subjects saw either 2 or 4 pictures consecutively. During retrieval, subjects indicated whether the probe picture matched one of the sample pictures. Results revealed that activity in the left anterior hippocampal formation, bilateral retrosplenial area, and left amygdala was greater at retrieval for trials with larger memory load, whereas activity in the PFC was greater at encoding for trials with larger memory load. There was no load effect during the delay. When encoding, maintenance, and retrieval periods were compared with fixation, activity was present in the hippocampal body/tail and fusiform gyrus bilaterally during encoding and retrieval, but not maintenance. Bilateral dorsolateral prefrontal activity was present during maintenance, but not during encoding or retrieval. The results support models of WM predicting that activity in the MTL should be modulated by WM load. PMID:19224975

Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-192- Ashe-Hanford/Scooteney-Tap

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hutchinson, Ken

2004-01-26

Vegetation Management for the Ashe-Hanford (tower 13/1 to 15/2) and Scooteney Tap (tower 2/1+1200 to 4/1+50) line corridor. The Ashe-Hanford line is a 500 kV single circuit transmission line having an easement width of 350 feet. The Scooteney Tap line is a 230 kV single circuit line having an easement width of 262.5 feet on the Department of Energy’s Hanford Nuclear Reservation (Reservation) and an easement width of 100 feet on private lands. The proposed work will be accomplished in the indicated sections of the transmission lines as referenced on the attached checklist. The work will include the performance ofmore » tower pad maintenance and access road maintenance in the referenced areas. Maintenance will include the control of all brush species within 30 feet of transmission structures and controlling all vegetation, except grass along the access roads to provide a 14-foot width for travel. Noxious weed management will also occur on the rights-of- way where needed.« less

Managing Highway Maintenance: Instructor's Manual for Management by Objectives Review, Unit 11, All Levels.

ERIC Educational Resources Information Center

Federal Highway Administration (DOT), Washington, DC. Offices of Research and Development.

Part of the series "Managing Highway Maintenance," the unit is designed for the training group leader and contains selected highlights and suggested discussion questions from six units of training: maintenance activities, work units, and classifying work; maintenance feature inventories; how to conduct a maintenance feature inventory;…

29 CFR 1918.96 - Maintenance and repair work in the vicinity of longshoring operations.

Code of Federal Regulations, 2010 CFR

2010-07-01

... General Working Conditions. § 1918.96 Maintenance and repair work in the vicinity of longshoring... 29 Labor 7 2010-07-01 2010-07-01 false Maintenance and repair work in the vicinity of longshoring... operations shall not be carried on in the hold or on deck beneath work being conducted overhead whenever such...

Investigation of induced recirculation during planned ventilation system maintenance

PubMed Central

Pritchard, C.J.; Scott, D.F.; Noll, J.D.; Voss, B.; Leonis, D.

2015-01-01

The Office of Mine Safety and Health Research (OMSHR) investigated ways to increase mine airflow to underground metal/nonmetal (M/NM) mine working areas to improve miners’ health and safety. One of those areas is controlled recirculation. Because the quantity of mine air often cannot be increased, reusing part of the ventilating air can be an effective alternative, if implemented properly, until the capacity of the present system is improved. The additional airflow can be used to provide effective dilution of contaminants and higher flow velocities in the underground mine environment. Most applications of controlled recirculation involve taking a portion of the return air and passing it back into the intake to increase the air volume delivered to the desired work areas. OMSHR investigated a Nevada gold mine where shaft rehabilitation was in progress and one of the two main fans was shut down to allow reduced air velocity for safe shaft work. Underground booster fan operating pressures were kept constant to maintain airflow to work areas, inducing controlled recirculation in one work zone. Investigation into system behavior and the effects of recirculation on the working area during times of reduced primary ventilation system airflow would provide additional information on implementation of controlled recirculation into the system and how these events affect M/NM ventilation systems. The National Institute for Occupational Safety and Health monitored the ventilation district when both main fans were operating and another scenario with one of the units turned off for maintenance. Airflow and contaminants were measured to determine the exposure effects of induced recirculation on miner health. Surveys showed that 19% controlled recirculation created no change in the overall district airflow distribution and a small reduction in district fresh air intake. Total dust levels increased only modestly and respirable dust levels were also low. Diesel particulate matter (DPM) levels showed a high increase in district intake mass flow, but minor increases in exposure levels related to the recirculation percentage. Utilization of DPM mass flow rates allows input into ventilation modeling programs to better understand and plan for ventilation changes and district recirculation effects on miners’ health. PMID:26190862

The different oscillation patterns of alpha band in the early and later stages of working memory maintenance.

PubMed

Xie, Yuanjun; Feng, Zhengquan; Xu, Yuanyuan; Bian, Chen; Li, Min

2016-10-28

A putative functional role for alpha oscillations in working memory remains controversial. However, recent evidence suggests that such oscillation may reflect distinct phases of working memory processing. The present study investigated alpha band (8-13Hz) activity during the maintenance stage of working memory using a modified Sternberg working memory task. Our results reveal that alpha power was concentrated primarily in the occipital cortex and was decreased during the early stage of maintenance (0-600ms), and subsequently increased during the later stage of maintenance (1000-1600ms). We suggest that reduced alpha power may be involved in focused attention during the working memory maintenance, whereas increased alpha power may reflect suppression of visual stimuli to facilitate internal processing related to the task. This interpretation is generally consistent with recent reports suggesting that variations in alpha power are associated with the representation and processing of information in the discrete time intervals during the working memory maintenance. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

Accelerated Proficiency and Facilitated Retention: Recommendations Based on an Integration of Research and Findings from a Working Meeting

DTIC Science & Technology

2010-12-01

Psychology– Learning , Memory and Cognition , 13, 344-349. Bahrick, H. P., & Hall, L. K. (1991a). Lifetime maintenance of high school mathematics content...been through an initiation ceremony—a novice who has begun introductory instruction . APPRENTICE Literally, one who is learning —a student undergoing...area of medical education, Problem-Based Learning is an instructional method that has students collaborate in work on challenging practical problems

Salience of working-memory maintenance and manipulation deficits in schizophrenia

PubMed Central

Hill, S. K.; Griffin, G. B.; Miura, T. Kazuto; Herbener, E. S.; Sweeney, J. A.

2011-01-01

Background Encoding and maintenance of information in working memory, followed by internal manipulation of that information for planning adaptive behavior, are two key components of working-memory systems. Both processes have been reported to be impaired in schizophrenia, but few studies have directly compared the relative severity of these abnormalities, or the degree to which manipulation deficits might be secondary to alterations in maintenance processes. Method Clinically stable schizophrenia patients (n=25) and a demographically similar healthy comparison group (n=24) were administered a verbal span task with three levels of working-memory load. Maintenance was assessed using sequential position questions. Manipulation processes were assessed by requiring comparison of the relative sequential position of test items, which entailed simultaneous serial search strategies regarding item order. Results Both groups showed reduced accuracy and increased reaction time for manipulation compared with maintenance processing. There were significant patient impairments across working-memory loads. There was no differential deficit in manipulation processing, and effect sizes of relative deficit in the patient group were higher for maintenance than manipulation processing. Conclusions The strong correlation for maintenance and manipulation deficits suggest that impairments in the ability to internally manipulate information stored in working-memory systems are not greater than alterations in the encoding and maintaining of information in working memory and that disturbances in maintenance processing may contribute to deficits in higher-order working-memory operations. PMID:20214839

35. INTERIOR VIEW TO THE NORTHWEST OF ROOM 152, A ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

35. INTERIOR VIEW TO THE NORTHWEST OF ROOM 152, A FIRST FLOOR CORRIDOR AND VIEWING GALLERY ON THE WEST SIDE OF THE POST-MORTEM CELLS. VIEWING AND WORK STATIONS ARE IN THE EAST WALL. - Nevada Test Site, Reactor Maintenance Assembly & Dissassembly Facility, Area 25, Jackass Flats, Junction of Roads F & G, Mercury, Nye County, NV

40 CFR Table 1 to Subpart IIIii of... - Work Practice Standards-Design, Operation, and Maintenance Requirements

Code of Federal Regulations, 2011 CFR

2011-07-01

... that are resistant to absorption of mercury, resistant to corrosion, facilitate the detection of liquid... in each cell room to prevent liquid mercury from being tracked into other areas. c. Provide adequate lighting in each cell room to facilitate the detection of liquid mercury spills or accumulations. d...

40 CFR Table 1 to Subpart IIIii of... - Work Practice Standards-Design, Operation, and Maintenance Requirements

Code of Federal Regulations, 2014 CFR

2014-07-01

... that are resistant to absorption of mercury, resistant to corrosion, facilitate the detection of liquid... in each cell room to prevent liquid mercury from being tracked into other areas. c. Provide adequate lighting in each cell room to facilitate the detection of liquid mercury spills or accumulations. d...

40 CFR Table 1 to Subpart IIIii of... - Work Practice Standards-Design, Operation, and Maintenance Requirements

Code of Federal Regulations, 2012 CFR

2012-07-01

... that are resistant to absorption of mercury, resistant to corrosion, facilitate the detection of liquid... in each cell room to prevent liquid mercury from being tracked into other areas. c. Provide adequate lighting in each cell room to facilitate the detection of liquid mercury spills or accumulations. d...

40 CFR Table 1 to Subpart IIIii of... - Work Practice Standards-Design, Operation, and Maintenance Requirements

Code of Federal Regulations, 2013 CFR

2013-07-01

... that are resistant to absorption of mercury, resistant to corrosion, facilitate the detection of liquid... in each cell room to prevent liquid mercury from being tracked into other areas. c. Provide adequate lighting in each cell room to facilitate the detection of liquid mercury spills or accumulations. d...

Coleman performs a CFE ICF-2 Test

NASA Image and Video Library

2011-01-18

ISS026-E-018760 (18 Jan. 2011) --- NASA astronaut Catherine (Cady) Coleman, Expedition 26 flight engineer, performs a Capillary Flow Experiment (CFE) Interior Corner Flow 2 (ICF-2) test. The CFE is positioned on a Maintenance Work Area in the Destiny laboratory of the International Space Station. CFE observes the flow of fluid, in particular capillary phenomena, in microgravity.

Coleman performs a CFE ICF-2 Test

NASA Image and Video Library

2011-01-18

ISS026-E-018749 (18 Jan. 2011) --- NASA astronaut Catherine (Cady) Coleman, Expedition 26 flight engineer, performs a Capillary Flow Experiment (CFE) Interior Corner Flow 2 (ICF-2) test. The CFE is positioned on a Maintenance Work Area in the Destiny laboratory of the International Space Station. CFE observes the flow of fluid, in particular capillary phenomena, in microgravity.

Coleman performs a CFE ICF-2 Test

NASA Image and Video Library

2011-01-18

ISS026-E-018751 (18 Jan. 2011) --- NASA astronaut Catherine (Cady) Coleman, Expedition 26 flight engineer, performs a Capillary Flow Experiment (CFE) Interior Corner Flow 2 (ICF-2) test. The CFE is positioned on a Maintenance Work Area in the Destiny laboratory of the International Space Station. CFE observes the flow of fluid, in particular capillary phenomena, in microgravity.

Management Tools for Bus Maintenance: Current Practices and New Methods. Final Report.

ERIC Educational Resources Information Center

Foerster, James; And Others

Management of bus fleet maintenance requires systematic recordkeeping, management reporting, and work scheduling procedures. Tools for controlling and monitoring routine maintenance activities are in common use. These include defect and fluid consumption reports, work order systems, historical maintenance records, and performance and cost…

Hamilton Army Airfield Environmental Investigation/Alternatives Assessment. Final Supplemental Sampling and Analysis Plan.

DTIC Science & Technology

1992-08-01

Areas 4-1 4.1.2 POL Area 4-1 4.1.3 Aircraft Maintenance and Storage Area 4-5 4.1.4 Revetment Area 4-5 4.1.5 Former Sewage Treatment Plant 4-5 4.1.6...Building 442 4-10 4.2 Groundwater Investigations 4-10 4.2.1 POL Area 4-10 4.2.2 Aircraft Storage and Maintenance Area 4-10 4.2.3 Revetment Area 4...Locations. 4-4 4.2 POL Area - Phase 2 Boring Locations 4-6 4.3 Aircraft Maintenance Area - Phase 2 Borings and Sediment Samples 4-7 4.4 Revetment

78 FR 33230 - Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-06-04

...'') section 110(k)(3), EPA is approving a maintenance plan for the 1997 8-hour ozone standard (``San Diego 8-hour maintenance plan'') for the San Diego County 1997 ozone nonattainment area (``San Diego 8-hour... maintenance plan is included in a document titled Redesignation Request and Maintenance Plan for the 1997...

18 CFR 368.3 - Schedule of records and periods of retention.

Code of Federal Regulations, 2013 CFR

2013-04-01

... companies. (c) Paid checks and receipts for payments of specific vouchers 5 years. (d) Authorization for the... and reports of condition of property Destroy when superseded. Maintenance 13. Maintenance project and work orders: (a) Authorizations for expenditures for maintenance work to be covered by project or work...

18 CFR 368.3 - Schedule of records and periods of retention.

Code of Federal Regulations, 2014 CFR

2014-04-01

... companies. (c) Paid checks and receipts for payments of specific vouchers 5 years. (d) Authorization for the... and reports of condition of property Destroy when superseded. Maintenance 13. Maintenance project and work orders: (a) Authorizations for expenditures for maintenance work to be covered by project or work...

18 CFR 368.3 - Schedule of records and periods of retention.

Code of Federal Regulations, 2012 CFR

2012-04-01

... companies. (c) Paid checks and receipts for payments of specific vouchers 5 years. (d) Authorization for the... and reports of condition of property Destroy when superseded. Maintenance 13. Maintenance project and work orders: (a) Authorizations for expenditures for maintenance work to be covered by project or work...

76 FR 6328 - Official Release of the January 2011 AP-42 Method for Estimating Re-Entrained Road Dust From...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-02-04

... Nonattainment and Maintenance Areas'' (EPA-420-B-10-040, December 2010). \\2\\ For estimating road dust from... maintenance areas and any PM 2.5 nonattainment and maintenance areas where re-entrained road dust is a... January 2011 AP-42 Method for Estimating Re-Entrained Road Dust From Paved Roads AGENCY: Environmental...

Landlord project multi-year program plan, fiscal year 1999, WBS 1.5

DOE Office of Scientific and Technical Information (OSTI.GOV)

Dallas, M.D.

The MYWP technical baseline describes the work to be accomplished by the Project and the technical standards which govern that work. The mission of Landlord Project is to provide more maintenance replacement of general infrastructure facilities and systems to facilitate the Hanford Site cleanup mission. Also, once an infrastructure facility or system is no longer needed the Landlord Project transitions the facility to final closure/removal through excess, salvage or demolition. Landlord Project activities will be performed in an environmentally sound, safe, economical, prudent, and reliable manner. The Landlord Project consists of the following facilities systems: steam, water, liquid sanitary waste,more » electrical distribution, telecommunication, sanitary landfill, emergency services, general purpose offices, general purpose shops, general purpose warehouses, environmental supports facilities, roads, railroad, and the site land. The objectives for general infrastructure support are reflected in two specific areas, (1) Core Infrastructure Maintenance, and (2) Infrastructure Risk Mitigation.« less

75 FR 17913 - Maintenance and Vegetation Management Along Existing Western Area Power Administration...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-08

... Maintenance and Vegetation Management Along Existing Western Area Power Administration Transmission Line... Corporation's mandatory vegetation management and maintenance standards (FAC-003-1) in accordance with section... Service) authorizations or issuing new authorizations to accommodate Western's vegetation management...

Remedial Design/Remedial Action Work Plan for Operable Units 6-05 and 10-04, Phase IV

DOE Office of Scientific and Technical Information (OSTI.GOV)

R. P. Wells

2006-11-14

This Phase IV Remedial Design/Remedial Action Work Plan addresses the remediation of areas with the potential for UXO at the Idaho National Laboratory. These areas include portions of the Naval Proving Ground, the Arco High-Altitude Bombing Range, and the Twin Buttes Bombing Range. Five areas within the Naval Proving Ground that are known to contain UXO include the Naval Ordnance Disposal Area, the Mass Detonation Area, the Experimental Field Station, The Rail Car Explosion Area, and the Land Mine Fuze Burn Area. The Phase IV remedial action will be concentrated in these five areas. For other areas, such as themore » Arco High-Altitude Bombing Range and the Twin Buttes Bombing Range, ordnance has largely consisted of sand-filled practice bombs that do not pose an explosion risk. Ordnance encountered in these areas will be addressed under the Phase I Operations and Maintenance Plan that allows for the recovery and disposal of ordnance that poses an imminent risk to human health or the environment.« less

Automated system for definition of life-cycle resources of electromechanical equipment

NASA Astrophysics Data System (ADS)

Zhukovskiy, Y.; Koteleva, N.

2017-02-01

The frequency of maintenance of electromechanical equipment depends on the plant, which uses and runs this equipment. Very often the maintenance frequency is poorly correlated with the actual state of the electromechanical equipment. Furthermore, traditional methods of diagnosis sometimes cannot work without stopping the process (for example, for equipment located in hard to reach places) and so the maintenance costs are increased. This problem can be solved using the indirect methods of diagnosing of the electromechanical equipment. The indirect methods often use the parameters in the real time and seldom use the parameters of traditional diagnostic methods for determination of the resource of electromechanical equipment. This article is dedicated to developing the structure of a special automated control system. This system must use the big flow of the information about the direct and indirect parameters of the equipment state from plants from different areas of industry and factories which produce the electromechanical equipment.

40 CFR 52.2424 - Motor vehicle emissions budgets.

Code of Federal Regulations, 2010 CFR

2010-07-01

... emissions budgets. (a) Motor vehicle emissions budget for the Hampton Roads maintenance area adjusting the mobile emissions budget contained in the maintenance plan for the horizon years 2015 and beyond adopted..., 1996. (b) Motor vehicle emissions budget for the Richmond maintenance area adjusting the mobile...

34. INTERIOR VIEW TO THE NORTH OF ROOMS 143 AND ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

34. INTERIOR VIEW TO THE NORTH OF ROOMS 143 AND 150, A FIRST FLOOR CORRIDOR AND VIEWING GALLERY ON THE EAST SIDE OF THE POST-MORTEM CELLS. VIEWING AND WORK STATIONS ARE IN THE NORTH AND WEST WALLS. - Nevada Test Site, Reactor Maintenance Assembly & Dissassembly Facility, Area 25, Jackass Flats, Junction of Roads F & G, Mercury, Nye County, NV

19. Photocopy of photograph. VIEW OF WORKER MANIPULATING SMALL GLASS ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

19. Photocopy of photograph. VIEW OF WORKER MANIPULATING SMALL GLASS OBJECTS IN THE HOT BAY WITH MANIPULATOR ARMS AT WORK STATION E-2. Photographer unknown, ca. 1969, original photograph and negative on file at the Remote Sensing Laboratory, Department of Energy, Nevada Operations Office. - Nevada Test Site, Engine Maintenance Assembly & Disassembly Facility, Area 25, Jackass Flats, Mercury, Nye County, NV

36. INTERIOR VIEW TO THE NORTHWEST OF THE SECOND FLOOR ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

36. INTERIOR VIEW TO THE NORTHWEST OF THE SECOND FLOOR CORRIDOR ON THE EAST SIDE OF THE DISASSEMBLY BAY. A VIEWING AND WORK STATION AND ENTRANCE TO THE CONTROL ROOM ARE ON THE WEST SIDE OF THE CORRIDOR. - Nevada Test Site, Reactor Maintenance Assembly & Dissassembly Facility, Area 25, Jackass Flats, Junction of Roads F & G, Mercury, Nye County, NV

Heat Recovery Ventilation for Housing: Air-to-Air Heat Exchangers.

ERIC Educational Resources Information Center

Corbett, Robert J.; Miller, Barbara

The air-to-air heat exchanger (a fan powered ventilation device that recovers heat from stale outgoing air) is explained in this six-part publication. Topic areas addressed are: (1) the nature of air-to-air heat exchangers and how they work; (2) choosing and sizing the system; (3) installation, control, and maintenance of the system; (4) heat…

2008 Transportation Research Projects at Work Making a Difference : Four Areas of Transportation Research by the Iowa Department of Transportation, Research and Technology Bureau [SD .WMV (320x240/29fps/11.3 MB)

DOT National Transportation Integrated Search

2009-01-01

Highlights of four projects by the Iowa Department of Transportation, Research and Technology Bureau: 1) Precast Bridge Approach (Pavements), 2) Teen Driver (Safety), 3) Winter Maintenance, and 4) Structural Health Monitoring (Bridges and structures)...

Emotion and working memory: evidence for domain-specific processes for affective maintenance.

PubMed

Mikels, Joseph A; Reuter-Lorenz, Patricia A; Beyer, Jonathan A; Fredrickson, Barbara L

2008-04-01

Working memory is comprised of separable subsystems for visual and verbal information, but what if the information is affective? Does the maintenance of affective information rely on the same processes that maintain nonaffective information? The authors address this question using a novel delayed-response task developed to investigate the short-term maintenance of affective memoranda. Using selective interference methods the authors find that a secondary emotion-regulation task impaired affect intensity maintenance, whereas secondary cognitive tasks disrupted brightness intensity maintenance, but facilitated affect maintenance. Additionally, performance on the affect maintenance task depends on the valence of the maintained feeling, further supporting the domain-specific nature of the task. The importance of affect maintenance per se is further supported by demonstrating that the observed valence effects depend on a memory delay and are not evident with simultaneous presentation of stimuli. These findings suggest that the working memory system may include domain-specific components that are specialized for the maintenance of affective memoranda. (Copyright) 2008 APA.

40 CFR 93.102 - Applicability.

Code of Federal Regulations, 2010 CFR

2010-07-01

... PM2.5 nonattainment and maintenance areas with respect to PM2.5 from re-entrained road dust if the EPA... further progress, attainment or maintenance strategy. Re-entrained road dust emissions are produced by... applicability. The provisions of this subpart shall apply in all nonattainment and maintenance areas for...

Managing Highway Maintenance: Standards for Maintenance Work, Part 3, Unit 8, Level 2.

ERIC Educational Resources Information Center

Federal Highway Administration (DOT), Washington, DC. Offices of Research and Development.

Part of the series "Managing Highway Maintenance," the unit explains various uses of maintenance standards and how standards should be interpreted and communicated to formen and crew leaders. Several examples are given of the decisions made when applying the standards to routine work. The preceding units on standards (parts 1 and 2)…

Innovation for maintenance technology improvements

NASA Technical Reports Server (NTRS)

Shives, T. R. (Editor); Willard, W. A. (Editor)

1982-01-01

A group of 34 submitted entries (32 papers and 2 abstracts) from the 33rd meeting of the Mechanical Failures Prevention Group whose subject was maintenance technology improvement through innovation. Areas of special emphasis included maintenance concepts, maintenance analysis systems, improved maintenance processes, innovative maintenance diagnostics and maintenance indicators, and technology improvements for power plant applications.

Community Involvement as an Effective Institutional Control at the Weldon Spring Site, a U.S. Department of Energy Office of Legacy Management Site

DOE Office of Scientific and Technical Information (OSTI.GOV)

Deyo, Y.E.; Pauling, T.

2006-07-01

The U.S. Department of Energy (DOE) Weldon Spring Site Remedial Action Project (WSSRAP) was conducted for the purpose of remediating a portion of a former trinitrotoluene and dinitrotoluene production plant that was operational from 1941 to 1945 and a former uranium refinery that was operational from 1957 to 1966. Surface remediation activities concluded in 2001 with the completion of a 45-acre (.18 square kilometer) on-site engineered disposal facility. Long-term surveillance and maintenance activities at the site were officially transferred to the DOE Office of Legacy Management in 2003. The Weldon Spring Site is located within the St. Louis, Missouri, metropolitanmore » area (population 3 million). DOE's close relationship with surrounding land owners created a need for innovative solutions to long-term surveillance and maintenance issues at the site. Through a Secretarial proclamation, a plan was established for development of a comprehensive public involvement and education program. This program would act as an institutional control to communicate the historical legacy of the site and would make information available about contamination present at the site to guide people in making decisions about appropriate site activities. In August 2002, the Weldon Spring Site Interpretive Center opened to the public with exhibits about the history of the area, the remediation work that was completed, and a site information repository that is available to visitors. In addition, the Hamburg Trail for hiking and biking was constructed as a joint DOE/MDC effort. The 8-mile trail travels through both DOE and MDC property; a series of historical markers posted along its length to communicate the history of the area and the remediation work that was done as part of WSSRAP activities. A ramp and viewing platform with informational plaques were constructed on the disposal cell to provide an additional mechanism for public education. With a basic marketing program, site visitor-ship has been steadily increasing. In 2005, approximately 15,400 visitors were associated with Interpretive Center operations and outreach activities. Science-oriented educational programs that directly relate to past remediation activities and present long-term surveillance and maintenance issues have been developed and are presented to St. Louis area school groups and other community-based organizations. Other innovative programs have been developed to address daily maintenance issues at the site and to promote beneficial community re-use of the property. Approximately 30,000 square feet of the former Administration Building has been transferred through a use-permit to Lindenwood University, a local institution with a total enrollment of about 12,000 students. Lindenwood is establishing a satellite college campus in the building in exchange for providing basic maintenance and payment of utilities for both the Administration Building and Interpretive Center. A volunteer program developed to address maintenance of the native plant gardens that surround the Interpretive Center has a current enrollment of approximately 25 volunteers. Another volunteer group of prairie ecosystem experts has been meeting regularly for the last 3 years to assist the site in long-term management of the established prairie surrounding the disposal cell. Public support of these community involvement activities at the site is strong. DOE has worked closely with the Weldon Spring Citizens Commission in developing the concepts for this approach and the Commission has helped promote these activities within the community. It is expected that continued public education in this manner will only serve to strengthen the institutional control commitments at the Weldon Spring Site. (authors)« less

Cognitive control components and speech symptoms in people with schizophrenia.

PubMed

Becker, Theresa M; Cicero, David C; Cowan, Nelson; Kerns, John G

2012-03-30

Previous schizophrenia research suggests poor cognitive control is associated with schizophrenia speech symptoms. However, cognitive control is a broad construct. Two important cognitive control components are poor goal maintenance and poor verbal working memory storage. In the current research, people with schizophrenia (n=45) performed three cognitive tasks that varied in their goal maintenance and verbal working memory storage demands. Speech symptoms were assessed using clinical rating scales, ratings of disorganized speech from typed transcripts, and self-reported disorganization. Overall, alogia was associated with both goal maintenance and verbal working memory tasks. Objectively rated disorganized speech was associated with poor goal maintenance and with a task that included both goal maintenance and verbal working memory storage demands. In contrast, self-reported disorganization was unrelated to either amount of objectively rated disorganized speech or to cognitive control task performance, instead being associated with negative mood symptoms. Overall, our results suggest that alogia is associated with both poor goal maintenance and poor verbal working memory storage and that disorganized speech is associated with poor goal maintenance. In addition, patients' own assessment of their disorganization is related to negative mood, but perhaps not to objective disorganized speech or to cognitive control task performance. Published by Elsevier Ireland Ltd.

77 FR 73560 - Approval and Promulgation of Air Quality Implementation Plans; West Virginia; Redesignation of...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-12-11

... the Area. The maintenance plan includes an insignificance determination for the on-road motor vehicle... redesignation. The maintenance plan includes an insignificance determination for the on-road motor vehicle...) Nonattainment Area to Attainment and Approval of the Associated Maintenance Plan AGENCY: Environmental...

77 FR 61631 - Final Environmental Impact Statement for Stehekin River Corridor Implementation Plan, Lake Chelan...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-10-10

... management of park facilities (e.g., roads, bridges, trails, maintenance yard) in response to increased... Meadows, while retaining private access to the area via a 0.75-mile-long reduced maintenance road... maintenance and residential facilities from floodplain areas, construction of recreational facilities and...

A Fuzzy analytical hierarchy process approach in irrigation networks maintenance

NASA Astrophysics Data System (ADS)

Riza Permana, Angga; Rintis Hadiani, Rr.; Syafi'i

2017-11-01

Ponorogo Regency has 440 Irrigation Area with a total area of 17,950 Ha. Due to the limited budget and lack of maintenance cause decreased function on the irrigation. The aim of this study is to make an appropriate system to determine the indices weighted of the rank prioritization criteria for irrigation network maintenance using a fuzzy-based methodology. The criteria that are used such as the physical condition of irrigation networks, area of service, estimated maintenance cost, and efficiency of irrigation water distribution. 26 experts in the field of water resources in the Dinas Pekerjaan Umum were asked to fill out the questionnaire, and the result will be used as a benchmark to determine the rank of irrigation network maintenance priority. The results demonstrate that the physical condition of irrigation networks criterion (W1) = 0,279 has the greatest impact on the assessment process. The area of service (W2) = 0,270, efficiency of irrigation water distribution (W4) = 0,249, and estimated maintenance cost (W3) = 0,202 criteria rank next in effectiveness, respectively. The proposed methodology deals with uncertainty and vague data using triangular fuzzy numbers, and, moreover, it provides a comprehensive decision-making technique to assess maintenance priority on irrigation network.

The Function and Organization of Lateral Prefrontal Cortex: A Test of Competing Hypotheses

PubMed Central

Reynolds, Jeremy R.; O'Reilly, Randall C.; Cohen, Jonathan D.; Braver, Todd S.

2012-01-01

The present experiment tested three hypotheses regarding the function and organization of lateral prefrontal cortex (PFC). The first account (the information cascade hypothesis) suggests that the anterior-posterior organization of lateral PFC is based on the timing with which cue stimuli reduce uncertainty in the action selection process. The second account (the levels-of-abstraction hypothesis) suggests that the anterior-posterior organization of lateral PFC is based on the degree of abstraction of the task goals. The current study began by investigating these two hypotheses, and identified several areas of lateral PFC that were predicted to be active by both the information cascade and levels-of-abstraction accounts. However, the pattern of activation across experimental conditions was inconsistent with both theoretical accounts. Specifically, an anterior area of mid-dorsolateral PFC exhibited sensitivity to experimental conditions that, according to both accounts, should have selectively engaged only posterior areas of PFC. We therefore investigated a third possible account (the adaptive context maintenance hypothesis) that postulates that both posterior and anterior regions of PFC are reliably engaged in task conditions requiring active maintenance of contextual information, with the temporal dynamics of activity in these regions flexibly tracking the duration of maintenance demands. Activity patterns in lateral PFC were consistent with this third hypothesis: regions across lateral PFC exhibited transient activation when contextual information had to be updated and maintained in a trial-by-trial manner, but sustained activation when contextual information had to be maintained over a series of trials. These findings prompt a reconceptualization of current views regarding the anterior-posterior organization of lateral PFC, but do support other findings regarding the active maintenance role of lateral PFC in sequential working memory paradigms. PMID:22355309

ALARA and work management

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schieber, C.; Perin, M.; Saumon, P.

1995-03-01

At the request of Electricite de France (EDF) and Framatome, the Nuclear Protection Evaluation Centre (CEPN) developed a three-year research project, between 1991 and 1993, to evaluate the impact of various work management factors that can influence occupational exposures in nuclear power plants (NPPs) and to assess the effectiveness of protective actions implemented to reduce them. Three different categories of factors have been delineated: those linked to working conditions (such as ergonomic of work areas and protective suits), those characterizing the operators (qualification, experience level, motivation, etc.). In order to quantify the impact of these factors, a detailed survey wasmore » carried out in five French NPPs, focusing on three types of operations: primary valves maintenance, decontamination of reactor cavity, and specialized maintenance operations on the steam generator. This survey was augmented by a literature review on the influence of {open_quotes}hostile{close_quotes} environment on working conditions. Finally, a specific study was performed in order to quantify the impact of various types of protective suits used in French nuclear installations according to the type of work to be done. All of these factors have been included in a model aiming at quantifying the effectiveness of protection actions, both from dosimetric and economic point of views.« less

Work Flow Analysis Report Consisting of Work Management - Preventive Maintenance - Materials and Equipment

DOE Office of Scientific and Technical Information (OSTI.GOV)

JENNINGS, T.L.

The Work Flow analysis Report will be used to facilitate the requirements for implementing the Work Control module of Passport. The report consists of workflow integration processes for Work Management, Preventative Maintenance, Materials and Equipment

An intelligent healthcare management system: a new approach in work-order prioritization for medical equipment maintenance requests.

PubMed

Hamdi, Naser; Oweis, Rami; Abu Zraiq, Hamzeh; Abu Sammour, Denis

2012-04-01

The effective maintenance management of medical technology influences the quality of care delivered and the profitability of healthcare facilities. Medical equipment maintenance in Jordan lacks an objective prioritization system; consequently, the system is not sensitive to the impact of equipment downtime on patient morbidity and mortality. The current work presents a novel software system (EQUIMEDCOMP) that is designed to achieve valuable improvements in the maintenance management of medical technology. This work-order prioritization model sorts medical maintenance requests by calculating a priority index for each request. Model performance was assessed by utilizing maintenance requests from several Jordanian hospitals. The system proved highly efficient in minimizing equipment downtime based on healthcare delivery capacity, and, consequently, patient outcome. Additionally, a preventive maintenance optimization module and an equipment quality control system are incorporated. The system is, therefore, expected to improve the reliability of medical equipment and significantly improve safety and cost-efficiency.

Neural correlates of impaired cognitive control over working memory in schizophrenia.

PubMed

Eich, Teal S; Nee, Derek Evan; Insel, Catherine; Malapani, Chara; Smith, Edward E

2014-07-15

One of the most common deficits in patients with schizophrenia (SZ) is in working memory (WM), which has wide-reaching impacts across cognition. However, previous approaches to studying WM in SZ have used tasks that require multiple cognitive-control processes, making it difficult to determine which specific cognitive and neural processes underlie the WM impairment. We used functional magnetic resonance imaging to investigate component processes of WM in SZ. Eighteen healthy controls (HCs) and 18 patients with SZ performed an item-recognition task that permitted separate neural assessments of 1) WM maintenance, 2) inhibition, and 3) interference control in response to recognition probes. Before inhibitory demands, posterior ventrolateral prefrontal cortex (VLPFC), an area involved in WM maintenance, was activated to a similar degree in both HCs and patients, indicating preserved maintenance operations in SZ. When cued to inhibit items from WM, HCs showed reduced activation in posterior VLPFC, commensurate with appropriately inhibiting items from WM. However, these inhibition-related reductions were absent in patients. When later probed with items that should have been inhibited, patients showed reduced behavioral performance and increased activation in mid-VLPFC, an area implicated in interference control. A mediation analysis indicated that impaired inhibition led to increased reliance on interference control and reduced behavioral performance. In SZ, impaired control over memory, manifested through proactive inhibitory deficits, leads to increased reliance on reactive interference-control processes. The strain on interference-control processes results in reduced behavioral performance. Thus, inhibitory deficits in SZ may underlie widespread impairments in WM and cognition. © 2013 Society of Biological Psychiatry Published by Society of Biological Psychiatry All rights reserved.

The most common problem facing by the maintenance department: A case Study between Universiti Tun Hussein Onn Malaysia (UTHM) and Universiti Teknologi Malaysia (UTM)

NASA Astrophysics Data System (ADS)

Norazam Yasin, Mohd; Mohamad Zin, Rosli; Halid Abdullah, Abd; Shafiq Mahmad, Muhammad; Fikri Hasmori, Muhammad

2017-11-01

From time to time, the maintenance works become more challenging due to construction of new building and also aging of the existing buildings. University buildings without any exception require proper maintenance services to support their function requirements and this can be considered as major responsibilities to be fulfilled by the maintenance department in the universities. Maintenance department specifically will face various kinds of problems in their operation works and thus this might influence the maintenance work operations itself. This study purposely to identify the common problem facing by the maintenance department and also to examine the current status of the maintenance department. In addition, this study would also propose any suitable approach that could be implemented to overcome the problem facing by the maintenance department. To achieve the objectives of this study, a combination of deep literature study and carrying out a survey is necessary. Literature study aimed to obtain deeper information about this study, meanwhile a survey aimed at identifying the common problem facing by the maintenance department and also to provide the information of the maintenance department’s organization. Several methods will be used in analyzing the data obtained through the survey, including Microsoft Office Excel and also using mean index formula. This study has identified three categories of problem in the maintenance department, which are management problems, human resource problem, and technical problems. Following the findings, several solutions being proposed which can be implemented as the solution to the problem facing. These suggestions have the potential to improve the maintenance department work efficiency, thus could help to increase the department productivity.

Programmatic Environmental Assessment Addressing the Development, Use, and Maintenance of Military Training Areas at Kirtland Air Force Base, New Mexico

DTIC Science & Technology

2016-09-30

design measures such as the use of “green” technology (e.g., photovoltaic panels, solar collection, heat recovery systems, wind turbines , green...Final Programmatic Environmental Assessment Addressing the Development, Use, and Maintenance of Military Training Areas at Kirtland Air Force...DEVELOPMENT, USE, AND MAINTENANCE OF MILITARY TRAINING AREAS AT KIRTLAND AIR FORCE BASE, NEW MEXICO Pursuant to provisions of the National

Evaluation of Hands-Free Devices for the Display of Maintenance Procedures

NASA Technical Reports Server (NTRS)

Whitmore, Mihriban; Hoffman, Ronald B.; Litaker, Harry, Jr.; Solem, Jody; Holden, Kritina; Twyford, Evan; Conlee, Carl

2007-01-01

Over the past year, NASA's focus has turned to crewed long duration and exploration missions. On these journeys, crewmembers will be required to execute thousands of procedures to maintain life support systems, check out space suits, conduct science experiments, and perform medical exams. To support the many complex tasks crewmembers undertake in microgravity, NASA is interested in providing crewmembers a hands-free work environment to promote more efficient operations. The overarching objective is to allow crewmembers to use both of their hands for tasks related to their mission, versus holding a paper manual or interacting with a display. The use of advanced, hands-free tools will undoubtedly make the crewmembers task easier, but they can also add to overall task complexity if not properly designed. A leading candidate technology for supporting a hands-free environment is the Head-Mounted Display (HMD). A more recent technology (e-book reader) that could be easily temp-stowed near the work area is also a potential hands-free solution. Previous work at NASA involved the evaluation of several commercially available HMDs for visual quality, comfort, and fit, as well as suitability for use in microgravity. Based on results from this work, three HMDs were selected for further evaluation (along with an e-book reader), using International Space Station (ISS)-like maintenance procedures. Two evaluations were conducted in the Space Station Mockup and Trainer Facility (SSMTF) located at the NASA Johnson Space Center (building 9). The SSMTF is a full scale, medium fidelity replica of the pressurized portions of the ISS. It supports crew training such as ingress and egress, habitability, and emergency procedures. In each of the two evaluations, the participants performed two maintenance procedures. One maintenance procedure involved inspecting air filters in a life support system and replacing them with a clean filter if one were found to be contaminated. The second maintenance procedure focused on working in a confined space; specifically, pulling down a rack to inspect wiring configurations, and rewiring in a different pattern. The maintenance procedures were selected to assess mobility, tool use, and access to multiple document sources during task performance. That is, the participant had to move from rack to rack, use a wrench, a camera, etc., replace components, and refer to diagrams to complete tasks. A constraint was imposed that the ISS-like format of the procedures was to be retained, and not modified or optimized for the electronic device ("plug and play" approach). This was based on future plans to test with real procedures on ISS.

32. INTERIOR VIEW TO THE NORTH OF THE FIRST FLOOR ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

32. INTERIOR VIEW TO THE NORTH OF THE FIRST FLOOR EAST CORRIDOR AND VIEWING GALLERY TO THE DISASSEMBLY BAY. A VIEWING AND WORK STATION FOR THE EAST SIDE OF THE UPPER LEVEL OF THE DISASSEMBLY BAY IS ON THE WEST SIDE OF THE CORRIDOR. - Nevada Test Site, Reactor Maintenance Assembly & Dissassembly Facility, Area 25, Jackass Flats, Junction of Roads F & G, Mercury, Nye County, NV

Apollo 11 impact on the occupational medicine program, NASA Manned Spacecraft Center

NASA Technical Reports Server (NTRS)

Wright, P. E.

1969-01-01

Requirements and development of standards for occupational medicine support of personnel in the Lunar Receiving Laboratory (LRL) are outlined. Considered are proper personnel performance and exclusion of people prone to develop a serious illness within the quarantine area. Occupational medicine report for the LRL consists of examination procedures covering laboratory work, periodic examinations, immunizations, health maintenance, preventive practices, medical standards, and waiver authority.

Developing a Vocational Education Training Program for Severely Handicapped Adolescents and Young Adults: A Feasibility Study. Independent Research and Development Project Reports. Report #6.

ERIC Educational Resources Information Center

Piuma, Chesca

This study investigated the feasibility of developing five vocational education curricula for severely handicapped (i.e., trainable mentally retarded) young people, aged 13 to 21, that would enable them to work in the employment areas of gardening, housekeeping, laundry services, food services, and minor auto maintenance. One goal of the project…

Health And Safety In Maintenance Activities

NASA Astrophysics Data System (ADS)

Ungureanu, Nicolae Stelian; Daraba, Dinu; Moraru, Roland Iosif

2015-07-01

The paper examines some aspects of health and safety at work in maintenance activities. It was analysed the occurrence of accidents, statistically, in maintenance work. There have been identified a number of causes of accidents and there have been proposed some measures to reduce them.

76 FR 5078 - Approval and Promulgation of Air Quality Implementation Plans: Tennessee; Approval of Section 110...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-01-28

...) Maintenance Plan for the 1997 8-Hour Ozone Standards for the Nashville, TN, Area AGENCY: Environmental... Tennessee State Implementation Plan (SIP) concerning the maintenance plan addressing the 1997 8-hour ozone standards for the Nashville, Tennessee 1997 8-hour ozone maintenance area, which is comprised of Davidson...

Bottom to Top Approach for Railway KPI Generation

NASA Astrophysics Data System (ADS)

Villarejo, Roberto; Johansson, Carl-Anders; Leturiondo, Urko; Simon, Victor; Seneviratne, Dammika; Galar, Diego

2017-09-01

Railway maintenance especially on infrastructure produces a vast amount of data. However, having data is not synonymous with having information; rather, data must be processed to extract information. In railway maintenance, the development of key performance indicators (KPIs) linked to punctuality or capacity can help planned and scheduled maintenance, thus aligning the maintenance department with corporate objectives. There is a need for an improved method to analyse railway data to find the relevant KPIs. The system should support maintainers, answering such questions as what maintenance should be done, where and when. The system should equip the user with the knowledge of the infrastructure's condition and configuration, and the traffic situation so maintenance resources can be targeted to only those areas needing work. The amount of information is vast, so it must be hierarchized and aggregated; users must filter out the useless indicators. Data are fused by compiling several individual indicators into a single index; the resulting composite indicators measure multidimensional concepts which cannot be captured by a single index. The paper describes a method of monitoring a complex entity. In this scenario, a plurality of use indices and weighting values are used to create a composite and aggregated use index from a combination of lower level use indices and weighting values. The resulting composite and aggregated indicators can be a decision-making tool for asset managers at different hierarchical levels.

Dissociation of verbal working memory system components using a delayed serial recall task.

PubMed

Chein, J M; Fiez, J A

2001-11-01

Functional magnetic resonance imaging (fMRI) was used to investigate the neural substrates of component processes in verbal working memory. Based on behavioral research using manipulations of verbal stimulus type to dissociate storage, rehearsal, and executive components of verbal working memory, we designed a delayed serial recall task requiring subjects to encode, maintain, and overtly recall sets of verbal items for which phonological similarity, articulatory length, and lexical status were manipulated. By using a task with temporally extended trials, we were able to exploit the temporal resolution afforded by fMRI to partially isolate neural contributions to encoding, maintenance, and retrieval stages of task performance. Several regions commonly associated with maintenance, including supplementary motor, premotor, and inferior frontal areas, were found to be active across all three trial stages. Additionally, we found that left inferior frontal and supplementary motor regions showed patterns of stimulus and temporal sensitivity implicating them in distinct aspects of articulatory rehearsal, while no regions showed a pattern of sensitivity consistent with a role in phonological storage. Regional modulation by task difficulty was further investigated as a measure of executive processing. We interpret our findings as they relate to notions about the cognitive architecture underlying verbal working memory performance.

The {open_quotes}ASR{close_quotes} story where we are and how we got there: A history of Sandia National Laboratories maintenance employee safety committee

DOE Office of Scientific and Technical Information (OSTI.GOV)

NONE

1997-08-01

The Area Safety Representative (ASR) Team is an employee based safety committee that was originated in the latter part of 1994. It was introduced by the Operations and Engineering Center ES&H Coordinator who had heard about an employee based safety program implemented at the EG&G Corporation. This information was the first step in creating Sandia`s Maintenance `Area Safety Representative` (ASR) Program. An advertisement went out from the ES&H Coordinator to all the Maintenance Organizations asking for individuals who would be interested in performing as a volunteer safety representative for their section. The interest was moderate but effective. The committee consistedmore » of one volunteer from each of the working sections within the Maintenance Organization, e.e., HVAC Mechanics, Electricians, Millwrights, Plumbers, Sheetmetal Workers, High-Voltage Technicians, a Union Representative, and representatives from the Operations Group that manage sub-contracted personnel. During the past year, organizational changes have brought about the addition of representatives to include the Planners and the Custodians. The original committee members were enrolled in a 30-hour OSHA Voluntary Compliance Outreach Course. This information provided the members with a broad overview of the Safety Guidelines set forth by OSHA for themselves and their coworkers. It is to be noted that this is an employee based safety team. There are no supervisors or managers on the committee but their attendance is always welcomed at the ASR meetings.« less

To select the best tool for generating 3D maintenance data and to set the detailed process for obtaining the 3D maintenance data

NASA Astrophysics Data System (ADS)

Prashanth, B. N.; Roy, Kingshuk

2017-07-01

Three Dimensional (3D) maintenance data provides a link between design and technical documentation creating interactive 3D graphical training and maintenance material. It becomes difficult for an operator to always go through huge paper manuals or come running to the computer for doing maintenance of a machine which makes the maintenance work fatigue. Above being the case, a 3D animation makes maintenance work very simple since, there is no language barrier. The research deals with the generation of 3D maintenance data of any given machine. The best tool for obtaining the 3D maintenance is selected and the tool is analyzed. Using the same tool, a detailed process for extracting the 3D maintenance data for any machine is set. This project aims at selecting the best tool for obtaining 3D maintenance data and to select the detailed process for obtaining 3D maintenance data. 3D maintenance reduces use of big volumes of manuals which creates human errors and makes the work of an operator fatiguing. Hence 3-D maintenance would help in training and maintenance and would increase productivity. 3Dvia when compared with Cortona 3D and Deep Exploration proves to be better than them. 3Dvia is good in data translation and it has the best renderings compared to the other two 3D maintenance software. 3Dvia is very user friendly and it has various options for creating 3D animations. Its Interactive Electronic Technical Publication (IETP) integration is also better than the other two software. Hence 3Dvia proves to be the best software for obtaining 3D maintenance data of any machine.

Neuronal ensemble for visual working memory via interplay of slow and fast oscillations.

PubMed

Mizuhara, Hiroaki; Yamaguchi, Yoko

2011-05-01

The current focus of studies on neural entities for memory maintenance is on the interplay between fast neuronal oscillations in the gamma band and slow oscillations in the theta or delta band. The hierarchical coupling of slow and fast oscillations is crucial for the rehearsal of sensory inputs for short-term storage, as well as for binding sensory inputs that are represented in spatially segregated cortical areas. However, no experimental evidence for the binding of spatially segregated information has yet been presented for memory maintenance in humans. In the present study, we actively manipulated memory maintenance performance with an attentional blink procedure during human scalp electroencephalography (EEG) recordings and identified that slow oscillations are enhanced when memory maintenance is successful. These slow oscillations accompanied fast oscillations in the gamma frequency range that appeared at spatially segregated scalp sites. The amplitude of the gamma oscillation at these scalp sites was simultaneously enhanced at an EEG phase of the slow oscillation. Successful memory maintenance appears to be achieved by a rehearsal of sensory inputs together with a coordination of distributed fast oscillations at a preferred timing of the slow oscillations. © 2011 The Authors. European Journal of Neuroscience © 2011 Federation of European Neuroscience Societies and Blackwell Publishing Ltd.

Department of National Defence's use of thermography for facilities maintenance

NASA Astrophysics Data System (ADS)

Kittson, John E.

1990-03-01

Since the late seventies DND through the Director General Works has been actively encouraging the use of thermography as an efficient and effective technique for supporting preventive maintenance quality assurance and energy conservation programs at Canadian Forces Bases (CFBs). This paper will provide an overview of DND''s experiences in the utilization of thermography for facilities maintenance applications. 1. HISTORICAL MILESTONES The following are milestones of DND''s use of thermography: a. Purchase of Infrared Equipment In 1976/77 DND purchased five AGA 750 Infrared Thermovision Systems which were distributed to commands. In 1980/81/82 six AGA liOs five AGA TPT8Os two AGA 782s and one AGA 720 were acquired. Finally DND also purchased seven AGEMA 870 systems during 1987/88. b. First and Second Interdepartaental Building Thermography Courses In 1978 and 1980 DND hosted two building thermography courses that were conducted by Public Works Canada. c. CE Thermographer Specialist Training Courses DND developed a training standard in 1983 for Construction Engineering (CE) Thermographer qualification which included all CE applications of thermography. The first annual inhouse training course was conducted at CFB Borden Ontario in 1984. These are now being conducted at the CFB Chilliwack Detachment in Vernon British Columbia. 2 . MARKETING FACILITIES MAINTENANCE IR Of paramount importance for successfully developing DND appreciation for thermography was providing familiarization training to CE staff at commands and bases. These threeday presentations emphasized motivational factors conducting thermographic surveys and utilizing infrared data of roofs electrical/mechanical systems heating plants steam distribution and building enclosures. These factors consisted mainly of the following objectives: a. preventive maintenance by locating deficiencies to be repaired b. quality assurance by verification of workmanship materials and design c. energy conservation by locating heat loss areas 2 / SPIE Vol. 1313 Thermosense XII (1990)

Health-hazard evaluation report HETA 88-369-2141, Raymond W. Bliss Army Community Hospital, Ft. Huachuca, Arizona

DOE Office of Scientific and Technical Information (OSTI.GOV)

Klein, M.; Gunter, B.

1991-09-01

In response to a request from a representative of the Raymond W. Bliss Army Community Hospital concerning indoor air quality at Greely Hall, Fort Huachuca (SIC-9711), Arizona, an environmental and ventilation survey was conducted. Greely Hall was a three story, multipurpose building with approximately 120,000 feet per floor. The building housed primarily offices, but also had a cafeteria, auditorium, computer rooms, conference rooms and electronics maintenance area. Over 2100 persons worked in the building. Average carbon-dioxide (124389) levels were 584 parts per million (ppm) in the morning, increasing to 1040ppm for the last measurements made that day. The levels rangedmore » from 350 to 1000ppm in the morning to 800 to 1800ppm in the afternoon. Inordinate temperature increases during the day were found in some areas of the building. Many of the air handling units had inoperable or closed main outside air dampers. Maintenance was poor. Improperly maintained or poorly draining condesate pans, renovation of the building without upgrading the ventilation systems and insufficient maintenance personnel were some of the problems identified. The authors conclude that the potential for thermal comfort problems and microbial contamination existed. The authors recommend measures to remedy these situations.« less

76 FR 46288 - Adequacy Determination for Colorado Springs, Cañon City, Greeley, Pagosa Springs, and Telluride...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-08-02

... Springs, Ca[ntilde]on City, Greeley, Pagosa Springs, and Telluride; Carbon Monoxide and PM 10 Maintenance... transportation conformity purposes: ``Revised Carbon Monoxide Attainment/Maintenance Plan Colorado Springs Attainment/ Maintenance Area'' and ``Revised Carbon Monoxide Maintenance Plan Greeley Attainment/Maintenance...

Oculomotor preparation as a rehearsal mechanism in spatial working memory.

PubMed

Pearson, David G; Ball, Keira; Smith, Daniel T

2014-09-01

There is little consensus regarding the specific processes responsible for encoding, maintenance, and retrieval of information in visuo-spatial working memory (VSWM). One influential theory is that VSWM may involve activation of the eye-movement (oculomotor) system. In this study we experimentally prevented healthy participants from planning or executing saccadic eye-movements during the encoding, maintenance, and retrieval stages of visual and spatial working memory tasks. Participants experienced a significant reduction in spatial memory span only when oculomotor preparation was prevented during encoding or maintenance. In contrast there was no reduction when oculomotor preparation was prevented only during retrieval. These results show that (a) involvement of the oculomotor system is necessary for optimal maintenance of directly-indicated locations in spatial working memory and (b) oculomotor preparation is not necessary during retrieval from spatial working memory. We propose that this study is the first to unambiguously demonstrate that the oculomotor system contributes to the maintenance of spatial locations in working memory independently from the involvement of covert attention. Copyright © 2014 The Authors. Published by Elsevier B.V. All rights reserved.

Impairment of working memory maintenance and response in schizophrenia: functional magnetic resonance imaging evidence.

PubMed

Driesen, Naomi R; Leung, Hoi-Chung; Calhoun, Vincent D; Constable, R Todd; Gueorguieva, Ralitza; Hoffman, Ralph; Skudlarski, Pawel; Goldman-Rakic, Patricia S; Krystal, John H

2008-12-15

Comparing prefrontal cortical activity during particular phases of working memory in healthy subjects and individuals diagnosed with schizophrenia might help to define the phase-specific deficits in cortical function that contribute to cognitive impairments associated with schizophrenia. This study featured a spatial working memory task, similar to that used in nonhuman primates, that was designed to facilitate separating brain activation into encoding, maintenance, and response phases. Fourteen patients with schizophrenia (4 medication-free) and 12 healthy comparison participants completed functional magnetic resonance imaging while performing a spatial working memory task with two levels of memory load. Task accuracy was similar in patients and healthy participants. However, patients showed reductions in brain activation during maintenance and response phases but not during the encoding phase. The reduced prefrontal activity during the maintenance phase of working memory was attributed to a greater rate of decay of prefrontal activity over time in patients. Cortical deficits in patients did not appear to be related to antipsychotic treatment. In patients and in healthy subjects, the time-dependent reduction in prefrontal activity during working memory maintenance correlated with poorer performance on the memory task. Overall, these data highlight that basic research insights into the distinct neurobiologies of the maintenance and response phases of working memory are of potential importance for understanding the neurobiology of cognitive impairment in schizophrenia and advancing its treatment.

Fluvial engineering works in the river bed of the Middle Loire

NASA Astrophysics Data System (ADS)

Nabet, Fouzi

2010-05-01

Since 1995, the Loire riverbed has been a field of restoration and maintenance. These interventions took place within the Plan Loire Grandeur Nature and consisted of the following points: the protection of the inhabitants against flooding risks (opening of the secondary channels), the preservation of the ecological assets and the elimination of the sinking of the water line at it's lower level. This research occurred in a specific part of the Loire riverbed, which is situated between Nevers and Orleans (on both banks). We tried by using a geomorphologic analysis to put in evidence the impact of the interventions on the evolution of the secondary channels and dikes. The Geographical Information System (GIS) put in place for the studies sector helps the space analysis by the superposition and the comparison of the different layers of information. This information tool helps creating a database, which can be updated and extended. This way, the managers of this site can easily integrate new thematic (ecological, pedagogical, tourism activity…) and benefit from a precise mapping of the intervention's areas and the impact of the restoration works. The main objective of the PhD is to analyse the functioning of hydrological and fluvial dynamics of the river bed of the Middle Loire, particularly in areas covered by maintenance work. These fluvial engineering works aim to improve flow and transfer of sediment in the river bed. This approach will evaluate the effectiveness of such maintenance work. It is necessary to set up a very fine scale model to quantify sediment transfer between secondary and main channels. The situation of secondary channels is contrasted, but the excessive growth of vegetation in some channels triggers their perennial functioning. The fine scale analysis is based on studies on seasonal and inter-annual evolution of secondary channels. Digital Elevation models (DEM), longitudinal profiles and topographic cross-sections integrated GIS help to quantify precisely erosion and sedimentation, according to the hydrological year. This work should be conducted according to hydrological events on the basis of topographical, bathymetric and sedimentary surveys. Therefore, a limited number of sites has been chosen in collaboration with AITL, DIREN Centre, and Conservatoire des Espaces Naturels. The result of the thesis brings tools to the Loire river management.

The less decade.

PubMed

Jones, D

1991-01-01

Although outsourcing is a relatively new buzzword, it actually amounts to contract management, a solution hospitals have used for years to manage operations areas such as dietary, housekeeping and maintenance. Many hospitals have found outsourcing a cost-effective way to meet their information system needs. Northeast Georgia Medical Center in Gainesville, Ga. is one example. Ten HealthQuest employees, including programmer Jerry Porter, work at NGMC under the medical center's facilities management agreement.

Space Assembly, Maintenance and Servicing Study. Volume 4: Concept Development Plan.

DTIC Science & Technology

1986-01-01

development of the concept development program (COP) plan: 1) Develop the CDP candidate work sheets 2) Categorize by application 3) Prioritize by... categorized under the ORU change-out section of this report, the large system assembly area will attempt to cover the EVA aspects of SAMS not discussed...space assemblies involve the evolvement of technologies related to multilevel orbital operating platforms on which both individual and cooperative

Dynamic adjustments in prefrontal, hippocampal, and inferior temporal interactions with increasing visual working memory load.

PubMed

Rissman, Jesse; Gazzaley, Adam; D'Esposito, Mark

2008-07-01

The maintenance of visual stimuli across a delay interval in working memory tasks is thought to involve reverberant neural communication between the prefrontal cortex and posterior visual association areas. Recent studies suggest that the hippocampus might also contribute to this retention process, presumably via reciprocal interactions with visual regions. To characterize the nature of these interactions, we performed functional connectivity analysis on an event-related functional magnetic resonance imaging data set in which participants performed a delayed face recognition task. As the number of faces that participants were required to remember was parametrically increased, the right inferior frontal gyrus (IFG) showed a linearly decreasing degree of functional connectivity with the fusiform face area (FFA) during the delay period. In contrast, the hippocampus linearly increased its delay period connectivity with both the FFA and the IFG as the mnemonic load increased. Moreover, the degree to which participants' FFA showed a load-dependent increase in its connectivity with the hippocampus predicted the degree to which its connectivity with the IFG decreased with load. Thus, these neural circuits may dynamically trade off to accommodate the particular mnemonic demands of the task, with IFG-FFA interactions mediating maintenance at lower loads and hippocampal interactions supporting retention at higher loads.

Multiple foci of spatial attention in multimodal working memory.

PubMed

Katus, Tobias; Eimer, Martin

2016-11-15

The maintenance of sensory information in working memory (WM) is mediated by the attentional activation of stimulus representations that are stored in perceptual brain regions. Using event-related potentials (ERPs), we measured tactile and visual contralateral delay activity (tCDA/CDA components) in a bimodal WM task to concurrently track the attention-based maintenance of information stored in anatomically segregated (somatosensory and visual) brain areas. Participants received tactile and visual sample stimuli on both sides, and in different blocks, memorized these samples on the same side or on opposite sides. After a retention delay, memory was unpredictably tested for touch or vision. In the same side blocks, tCDA and CDA components simultaneously emerged over the same hemisphere, contralateral to the memorized tactile/visual sample set. In opposite side blocks, these two components emerged over different hemispheres, but had the same sizes and onset latencies as in the same side condition. Our results reveal distinct foci of tactile and visual spatial attention that were concurrently maintained on task-relevant stimulus representations in WM. The independence of spatially-specific biasing mechanisms for tactile and visual WM content suggests that multimodal information is stored in distributed perceptual brain areas that are activated through modality-specific processes that can operate simultaneously and largely independently of each other. Copyright © 2016 Elsevier Inc. All rights reserved.

Defer Maintenance, Invite Disaster

ERIC Educational Resources Information Center

Bowman, William W.

1977-01-01

An AGB- and NACUBO-sponsored survey showed that "wish lists" are accumulating overdue major maintenance projects because energy costs are consuming physical plant budgets. Problem areas are discussed: budget "guesstimation," preventive maintenance, deferred maintenance inventory, the APPA accounting format, resource allocation,…

Flexibility within working memory and the focus of attention for sequential verbal information does not depend on active maintenance.

PubMed

Sandry, Joshua; Schwark, Jeremy D; MacDonald, Justin

2014-10-01

The focus of attention seems to be a static element within working memory when verbal information is serially presented, unless additional time is available for processing or active maintenance. Experiment 1 manipulated the reward associated with early and medial list positions in a probe recognition paradigm and found evidence that these nonterminal list positions could be retrieved faster and more accurately if participants were appropriately motivated-without additional time for processing or active maintenance. Experiment 2 used articulatory suppression and demonstrated that the underlying maintenance mechanism cannot be attributed to rehearsal, leaving attentional refreshing as the more likely mechanism. These findings suggest that the focus of attention within working memory can flexibly maintain nonterminal early and medial list representations at the expense of other list representations even when there is not additional time for processing or active maintenance. Maintenance seems to be accomplished through an attentional refreshing mechanism.

The Impact Of Occupational Hazards In Workplaces - Maintenance, A Main Target For Ensuring The Safety Of Working Equipment

NASA Astrophysics Data System (ADS)

Antonov, Anca Elena; Buica, Georgeta; Darabont, Doru Costin; Beiu, Constantin

2015-07-01

For use of work equipment having the economic performance and the highest level of safety, it must be ensured that it complies with the conditions set by the manufacturer in terms of putting into service, use and maintenance operations, ensuring appropriate technical and environmental requirements, including appropriate measures and means of protection. The research aimed to identify and analyze the occupational hazards associated to maintenance operations, in terms of the history of the adjustments, maintenance, cleaning and repair, including the case that occur after the incidents, capital repairs and upgrades. The results of the research consisted in the development of recommendations on the effective management of maintenance activities of work equipment and a software model to enable an efficient management of maintenance, as a tool for occupational hazards in companies - premise for increasing the competitiveness of employers in the market economy.

Health-risk behaviors in agriculture and related factors, southeastern Anatolian region of Turkey.

PubMed

Yavuz, Hasret; Simsek, Zeynep; Akbaba, Muhsin

2014-01-01

Human behavior plays a central role in the maintenance of health and the prevention of diseases. This study aimed to determine the risky behaviors of farm operators selected from a province of Turkey's southeastern Anatolian region, as well as the factors related to risky behaviors. In this cross-sectional analysis, 380 farm operators were enrolled through simple random selection method, and the response rate was 85%. Health-risk behavior was measured using the Control List of Occupational Risks in Agriculture. Of 323 farm operators, 85.4% were male. The prevalence of risky behaviors related to measures of environmental risks were higher in animal husbandry, transportation, transportation and maintenance of machinery, pesticide application, child protection, thermal stress, and psychosocial factors in the work place. Education, age, duration of work, and size of agricultural area were associated with risky behaviors in a multiple linear regression (P < .05). Findings showed that a certified training program and a behavior surveillance system for agriculture should be developed.

Cross-frequency synchronization connects networks of fast and slow oscillations during visual working memory maintenance.

PubMed

Siebenhühner, Felix; Wang, Sheng H; Palva, J Matias; Palva, Satu

2016-09-26

Neuronal activity in sensory and fronto-parietal (FP) areas underlies the representation and attentional control, respectively, of sensory information maintained in visual working memory (VWM). Within these regions, beta/gamma phase-synchronization supports the integration of sensory functions, while synchronization in theta/alpha bands supports the regulation of attentional functions. A key challenge is to understand which mechanisms integrate neuronal processing across these distinct frequencies and thereby the sensory and attentional functions. We investigated whether such integration could be achieved by cross-frequency phase synchrony (CFS). Using concurrent magneto- and electroencephalography, we found that CFS was load-dependently enhanced between theta and alpha-gamma and between alpha and beta-gamma oscillations during VWM maintenance among visual, FP, and dorsal attention (DA) systems. CFS also connected the hubs of within-frequency-synchronized networks and its strength predicted individual VWM capacity. We propose that CFS integrates processing among synchronized neuronal networks from theta to gamma frequencies to link sensory and attentional functions.

18 CFR 367.81 - Maintenance.

Code of Federal Regulations, 2010 CFR

2010-04-01

... maintenance work. A list of work operations applicable generally to service company property is included in paragraph (d) of this section. Other work operations applicable to specific classes of property are listed... repairs which have been made. (3) Work performed specifically for the purpose of preventing failure...

Buying Into Maintenance.

ERIC Educational Resources Information Center

May, Abigail

1998-01-01

Describes how educational institutions are recognizing the short-sightedness of deferred maintenance. Discusses the challenges facing schools as they confront maintenance costs and what they must do to address the problem. Offers advice on proactive stances toward maintenance such as computerized work control processes, maintenance zones, and…

Methodology for the placement of maintenance area headquarters.

DOT National Transportation Integrated Search

1985-01-01

A methodology for strategically locating Virginia Department of Highways and Transportation maintenance area headquarters throughout the state was developed and pilot tested in the Charlottesville Residency (Albemarle and Greene counties). In the dev...

Vibration syndrome in railway track maintenance workers.

PubMed

Virokannas, H; Anttonen, H; Niskanen, J

1995-01-01

An inquiry was sent to all railway maintenance workers in three railway districts in Finland and hand-arm vibration was measured on the handlebars of tools used by maintenance workers. The study group included 252 (82%) subjects, whose mean age was 41 years and who had worked in track maintenance for 14 years (SD 9). In Finland there are over 600 railway maintenance workers who use vibrating tools. The frequency-weighted acceleration of hand-arm vibration was calculated according to the ISO 5349 standard. Hand-held tamping machines had caused most of the vibration exposure, and aw4h was 10.6 m/s2 measured on the handlebar of tamping machine, but many workers also used other vibrating tools. The annual vibration level was 2.5 m/s2 when the use of all vibrating tools and the exposure time was taken into account. In the questionnaire the prevalence of vibration-induced white finger (VWF) was 14% in the entire material, and the prevalence of VWF increased significantly with the total duration of the maintenance work. In addition, 39% of the subjects had suffered numbness of the hands, and the prevalence of hand numbness also increased significantly with the total duration of maintenance work. According to the measurements of vibration and the prevalence of hand symptoms the present investigation indicates vibration syndrome as being related to railway track maintenance work. In the exposure group, where tamping machines mainly were used and exposure to other vibration was small, the prevalence of VWF was also significantly higher, but the prevalence of hand numbness insignificant compared with the control group. In this study vascular and nerve hand symptoms were considered to cause serious trouble in work by 4-11% of the maintenance workers.

Managing Highway Maintenance: Budget Preparation, Unit 9, Level 3.

ERIC Educational Resources Information Center

Federal Highway Administration (DOT), Washington, DC. Offices of Research and Development.

Part of the series "Managing Highway Maintenance," the unit describes the essential steps in developing a maintenance budget, or performance budget, based on the work to be done. It is designed for field engineers and supervisors who assist department officials in preparing work programs and budgets. The format is a programed,…

Spaceport aurora: An orbiting transportation node

NASA Technical Reports Server (NTRS)

1990-01-01

With recent announcements of the development of permanently staffed facilities on the Moon and Mars, the national space plan is in need of an infrastructure system for transportation and maintenance. A project team at the University of Houston College of Architecture and the Sasakawa International Center for Space Architecture, recently examined components for a low Earth orbit (LEO) transportation node that supports a lunar build-up scenario. Areas of investigation included identifying transportation node functions, identifying existing space systems and subsystems, analyzing variable orbits, determining logistics strategies for maintenance, and investigating assured crew return systems. The information resulted in a requirements definition document, from which the team then addressed conceptual designs for a LEO transportation node. The primary design drivers included: orbital stability, maximizing human performance and safety, vehicle maintainability, and modularity within existing space infrastructure. For orbital stability, the power tower configuration provides a gravity gradient stabilized facility and serves as the backbone for the various facility components. To maximize human performance, human comfort is stressed through zoning of living and working activities, maintaining a consistent local vertical orientation, providing crew interaction and viewing areas and providing crew return vehicles. Vehicle maintainability is accomplished through dual hangars, dual work cupolas, work modules, telerobotics and a fuel depot. Modularity is incorporated using Space Station Freedom module diameter, Space Station Freedom standard racks, and interchangeable interior partitions. It is intended that the final design be flexible and adaptable to provide a facility prototype that can service multiple mission profiles using modular space systems.

230. CCC Camp NP21 was established at the Bluffs (Doughton ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

230. CCC Camp NP-21 was established at the Bluffs (Doughton Park) located on what is now the Doughton Park Maintenance Area. It opened September 1, 1938 and was abandoned July 17, 1942. Crews were assigned to the first landscape development on the parkway in the Cumberland Knob Area. This work entailed removal of debris and downed wood, slope flattening and rounding, seeding shoulders and planting along the road, and improvement of fields and forest to the side of the roadway. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

March 10, 2006, Transportation Conformity Rule That Addresses Requirements for Project-level Conformity Determinations in PM2.5 and PM10 Nonattainment and Maintenance Areas

EPA Pesticide Factsheets

This final rule, published March 10, 2006, establishes requirements for project-level conformity determinations in particulate matter (PM) 2.5 nonattainment and maintenance areas, and revises existing requirements for projects in PM10 areas.

Instrumentation and Controls Division progress report for the period July 1, 1986 to June 30, 1988

DOE Office of Scientific and Technical Information (OSTI.GOV)

Klobe, L.E.

1988-12-01

The Instrumentation and Controls (IandC) Division of Oak Ridge National Laboratory (ORNL) performs basic and applied instrumentation and controls research, development and design engineering, specialized instrument design and fabrication, and maintenance services for instruments, electronics, and computers. The IandC Division is one of the largest RandD organizations of its type among government laboratories, and it exists as the result of an organizational strategy to integrate ORNL's instrumentation and controls-related disciplines into one dedicated functional organization to increase the Laboratory's expertise and capabilities in these rapidly expanding, innovative areas of technology. The Division participates in the programs and projects of ORNLmore » by applying its expertise and capabilities in concert with other divisions to perform basic research and mission-oriented technology development. Many of the Division's RandD tasks that are a part of a larger ORNL program are of sufficient scope that the IandC effort constitutes a separate program element with direct funding and management responsibility within the Division. The activities of IandC include performance of an RandD task in IandC facilities, the participation of from one of many IandC engineers and scientists in a multidisciplinary team working in a specific research area or development project, design and fabrication of a special instrument or instrumentation system, or a few hours of maintenance service. In its support and maintenance work, the role of the IandC Division is to provide a level of expertise appropriate to complete a job successfully at minimum overall cost and time schedule---a role which involves IandC in almost all ORNL activities.« less

Addendum to the Closure Report for Corrective Action Unit 113: Area 25 R-MAD Facility, Nevada National Security Site, Nevada

DOE Office of Scientific and Technical Information (OSTI.GOV)

NSTec Environmental Restoration

2011-02-24

This addendum to the Closure Report for Corrective Action Unit 113: Area 25, Reactor Maintenance, Assembly, and Disassembly Facility, Building 3110, Nevada Test Site, Nevada, DOE/NV--891-VOL I-Rev. 1, dated July 2003, provides details of demolition, waste disposal, and use restriction (UR) modification for Corrective Action Unit 113, Area 25 R-MAD Facility. Demolition was completed on July 15, 2010, when the last of the building debris was disposed. Final field activities were concluded on August 30, 2010, after all equipment was demobilized and UR signs were posted. This work was funded by the American Recovery and Reinvestment Act.

Advanced training of specialists in area of fiber-optic communication lines maintenance

NASA Astrophysics Data System (ADS)

Andreev, Vladimir A.; Voronkov, Andrey A.; Bukashkin, Sergey A.; Buzova, Maria A.

2017-04-01

The paper considers the concept of fiber-optic communication lines (FOCL) maintenance. Performance criterion of FOCL technical maintenance was proposed. For the first time the algorithm for evaluation of the FOCL maintenance efficiency at telecommunication specialists training was applied.

Light Vehicle Preventive Maintenance.

ERIC Educational Resources Information Center

Marine Corps Inst., Washington, DC.

This correspondence course, originally developed for the Marine Corps, is designed to instruct students in the performance of preventive maintenance on motor vehicles. Instructional materials are presented in three chapters as follows: (1) Major Maintenance Areas (maintenance system, tires, batteries, cooling systems, and vehicle lubrication; (2)…

The workings of a multicultural research team.

PubMed

Friedemann, Marie-Luise; Pagan-Coss, Harald; Mayorga, Carlos

2008-07-01

Transcultural nurse researchers are exposed to the challenges of developing and maintaining a multiethnic team. With the example of a multicultural research study of family caregivers conducted in the Miami-Dade area, the authors guide the readers through steps of developing a culturally competent and effective team. Pointing out challenges and successes, the authors illustrate team processes and successful strategies relative to recruitment of qualified members, training and team maintenance, and evaluation of team effectiveness. With relevant concepts from the literature applied to practical examples, the authors demonstrate how cultural team competence grows in a supportive work environment.

Zero-gravity atmospheric Cloud Physics Experiment Laboratory; Programmatics report

NASA Technical Reports Server (NTRS)

1974-01-01

The programmatics effort included comprehensive analyses in four major areas: (1) work breakdown structure, (2) schedules, (3) costs, and (4) supporting research and technology. These analyses are discussed in detail in the following sections which identify and define the laboratory project development schedule, cost estimates, funding distributions and supporting research and technology requirements. All programmatics analyses are correlated among themselves and with the technical analyses by means of the work breakdown structure which serves as a common framework for program definition. In addition, the programmatic analyses reflect the results of analyses and plans for reliability, safety, test, and maintenance and refurbishment.

The Workings of a Multicultural Research Team

PubMed Central

Friedemann, Marie-Luise; Pagan-Coss, Harald; Mayorga, Carlos

2013-01-01

Purpose Transcultural nurse researchers are exposed to the challenges of developing and maintaining a multiethnic team. With the example of a multicultural research study of family caregivers conducted in the Miami-Dade area, the authors guide the readers through steps of developing a culturally competent and effective team. Design Pointing out challenges and successes, the authors illustrate team processes and successful strategies relative to recruitment of qualified members, training and team maintenance, and evaluation of team effectiveness. Method With relevant concepts from the literature applied to practical examples, the authors demonstrate how cultural team competence grows in a supportive work environment. PMID:18390824

Coping with Deferred Maintenance.

ERIC Educational Resources Information Center

Suber, L. Terry

1982-01-01

The deferred maintenance problem on college and university campuses is addressed. Deferred maintenance refers to larger or more expansive maintenance work that can be delayed and is not performed when needed or reported, usually because its cost is beyond the annual maintenance and operating budget of the physical plant department. Eventually…

The contributions of cerebro-cerebellar circuitry to executive verbal working memory.

PubMed

Marvel, Cherie L; Desmond, John E

2010-01-01

Contributions of cerebro-cerebellar function to executive verbal working memory were examined using event-related functional magnetic resonance imaging (fMRI) while 16 subjects completed two versions of the Sternberg task. In both versions subjects were presented with two or six target letters during the encoding phase, which were held in memory during the maintenance phase. A single probe letter was presented during the retrieval phase. In the "match condition", subjects decided whether the probe matched the target letters. In the "executive condition", subjects created a new probe by counting two alphabetical letters forward (e.g., f-->h) and decided whether the new probe matched the target letters. Neural activity during the match and executive conditions was compared during each phase of the task. There were four main findings. First, cerebro-cerebellar activity increased as a function of executive load. Second, the dorsal cerebellar dentate co-activated with the supplementary motor area (SMA) during encoding. This likely represented the formation of an articulatory (motor) trajectory. Third, the ventral cerebellar dentate co-activated with anterior prefrontal regions Brodmann Area (BA) 9/46 and the pre-SMA during retrieval. This likely represented the manipulation of information and formation of a response. A functional dissociation between the dorsal "motor" dentate and "cognitive" ventral dentate agrees with neuroanatomical tract tracing studies that have demonstrated separate neural pathways involving each region of the dentate: the dorsal dentate projects to frontal motor areas (including the SMA), and the ventral dentate projects to frontal cognitive areas (including BA 9/46 and the pre-SMA). Finally, activity during the maintenance phase in BA 9, anterior insula, pre-SMA and ventral dentate predicted subsequent accuracy of response to the probe during the retrieval phase. This finding underscored the significant contribution of the pre-SMA/ventral dentate pathway--observed several seconds prior to any motor response to the probe--to executive verbal working memory. Copyright (c) 2009 Elsevier Srl. All rights reserved.

Ability to join the workforce and work productivity among drug users under methadone maintenance treatment in a mountainous area of Northern Vietnam: a cross-sectional study

PubMed Central

Nong, Vuong Minh; Boggiano, Victoria L; Nguyen, Lan Huong Thi; Nguyen, Cuong Tat; Nguyen, Long Hoang; Xuan Bach, Tran; Nguyen, Hung Van; Hoang, Canh Dinh; Latkin, Carl A; Vu, Minh Thuc Thi

2017-01-01

Objectives A major measure of treatment success for drug users undergoing rehabilitation is the ability to enter the workforce and generate income. This study examines the absenteeism and productivity among people who inject drugs (PWID) enrolled in methadone maintenance treatment (MMT) in Northern Vietnam. Setting We conducted a cross-sectional study in two clinics in Tuyen Quang province. Participants A total of 241 patients enrolled in MMT. Primary and secondary outcome measures Patients’ work productivity was measured using the WPAI-GH instrument (Work Productivity and Activity Impairment Questionnaire: General Health V2.0). We also collected additional characteristics about participants’ employment history, such as proficient jobs, whether they actively found a new job and be accepted by employers. Results Most of the participants (>90%) were employed at the time of the study. Rates of absenteeism (missed work), presenteeism (impairment while working) and overall loss of productivity were 15.8%, 5.6% and 11.2%, respectively, as measured by the WPAI-GH questionnaire. The most proficient job was ‘freelancer’ (17.5%), followed by ‘blue-collar worker’ (10.6%) and ‘farmer’ (10.2%). Only 26.8% of patients reported that they actively sought jobs in the past. About half of them had been refused by employers because of their drug use history and/or HIV status. We found no statistically significant difference between patients enrolled in MMT for <1 year and those who had been enrolled >1 year. Factors associated with higher work productivity included not endorsing problems in mobility, self-care or pain; being HIV-negative and having greater MMT treatment adherence. Conclusion Our study highlights the high employment rate and work productivity among PWID in MMT programmes in remote areas of Northern Vietnam. The results can help to improve the quality and structure of MMT programmes across Vietnam and in other countries. PMID:28751487

NASA work unit system file maintenance manual

NASA Technical Reports Server (NTRS)

1972-01-01

The NASA Work Unit System is a management information system for research tasks (i.e., work units) performed under NASA grants and contracts. It supplies profiles on research efforts and statistics on fund distribution. The file maintenance operator can add, delete and change records at a remote terminal or can submit punched cards to the computer room for batch update. The system is designed for file maintenance by a person with little or no knowledge of data processing techniques.

A Planned Preventive Maintenance Program. A Handbook for Chief Business Officers and Supervisors of Maintenance with Suggestions on Maintenance for Consideration by Presidents of Higher Institutions.

ERIC Educational Resources Information Center

Daniel, Clarence H.

This handbook explains planned preventive maintenance program, which is an operational system of maintenance designed to increase the effectiveness of the maintenance staff and the use of maintenance funds through efficient scheduling of inspections and follow-through of work to be performed. Sections are included for the chief administrative…

Maintenance manager's manual for small transit agencies. Special report 1985-1986

DOE Office of Scientific and Technical Information (OSTI.GOV)

Fowler, W.

1988-03-01

This publication contains information to assist operators of transit agencies providing public transportation in rural and smaller urban areas to better manage their vehicle maintenance programs. The report includes discussions of maintenance management, maintenance programs preventive maintenance, recordkeeping, selection of type of maintenance operation, in-house maintenance, and maintenance practices. Also included are appendixes giving supplementary information about tire loads; lubrication oil; mechanic hand tools; shop tools; mechanic aptitude tests; technical training resources; maintenance management training resources; and lists of manufacturers of air-conditioning systems, wheelchair lifts and wheelchair ramps.

Examining maintenance responsibilities.

PubMed

Lam, K C

2001-06-01

This paper has examined the important responsibilities of the two organisations involved in the provision of maintenance service for the vital building services in many of our highly serviced buildings. The issues raised could be put to beneficial use in both clients and maintenance providers. All in all, the clients should work closely with their maintenance providers. Engineering services in buildings will not perform satisfactorily and efficiently if both parties do not work together and understand the maintenance tasks based on a business partnering mode. Put forward is the view that the management of the activities involved in the operation and maintenance process is a "shared commitment/involvement" between the client and the maintenance provider. It is obvious that many factors can influence the continued effectiveness of a quality maintenance scheme set up by client and provider. Some of these factors are: Change in key personnel Updates in technology Amendments to engineering practice Implementation of legislative requirements Changes in operation by client or provider Change of use of building Passage of time These factors must be fully reviewed by both parties from time to time, and necessary actions taken. A cooperative team working relationship and improved communication should be fostered by the client and his provider for the best management of services maintenance. This arrangement will contribute to better building services systems with continuous improvement; improved value for clients and higher return for the maintenance provider.

User Delay Cost Model and Facilities Maintenance Cost Model for a Terminal Control Area : Volume 3. User's Manual and Program Documentation for the Facilities Maintenance Cost Model

DOT National Transportation Integrated Search

1978-05-01

The Facilities Maintenance Cost Model (FMCM) is an analytic model designed to calculate expected annual labor costs of maintenance within a given FAA maintenance sector. The model is programmed in FORTRAN IV and has been demonstrated on the CDC Krono...

Augmented reality application utility for aviation maintenance work instruction

NASA Astrophysics Data System (ADS)

Pourcho, John Bryan

Current aviation maintenance work instructions do not display information effectively enough to prevent costly errors and safety concerns. Aircraft are complex assemblies of highly interrelated components that confound troubleshooting and can make the maintenance procedure difficult (Drury & Gramopadhye, 2001). The sophisticated nature of aircraft maintenance necessitates a revolutionized training intervention for aviation maintenance technicians (United States General Accounting Office, 2003). Quite simply, the paper based job task cards fall short of offering rapid access to technical data and the system or component visualization necessary for working on complex integrated aircraft systems. Possible solutions to this problem include upgraded standards for paper based task cards and the use of integrated 3D product definition used on various mobile platforms (Ropp, Thomas, Lee, Broyles, Lewin, Andreychek, & Nicol, 2013). Previous studies have shown that incorporation of 3D graphics in work instructions allow the user to more efficiently and accurately interpret maintenance information (Jackson & Batstone, 2008). For aircraft maintenance workers, the use of mobile 3D model-based task cards could make current paper task card standards obsolete with their ability to deliver relevant, synchronized information to and from the hangar. Unlike previous versions of 3D model-based definition task cards and paper task cards, which are currently used in the maintenance industry, 3D model based definition task cards have the potential to be more mobile and accessible. Utilizing augmented reality applications on mobile devices to seamlessly deliver 3D product definition on mobile devices could increase the efficiency, accuracy, and reduce the mental workload for technicians when performing maintenance tasks (Macchiarella, 2004). This proposal will serve as a literary review of the aviation maintenance industry, the spatial ability of maintenance technicians, and benefits of modern digital hardware to educate, point out gaps in research, and observe possible foundations on which to build the future of aviation maintenance job task cards leading to a the methodology of the proposed study.

25 CFR 170.812 - What is emergency maintenance?

Code of Federal Regulations, 2010 CFR

2010-04-01

... 25 Indians 1 2010-04-01 2010-04-01 false What is emergency maintenance? 170.812 Section 170.812 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN RESERVATION ROADS PROGRAM BIA Road Maintenance § 170.812 What is emergency maintenance? Emergency maintenance is work that...

25 CFR 170.812 - What is emergency maintenance?

Code of Federal Regulations, 2013 CFR

2013-04-01

... 25 Indians 1 2013-04-01 2013-04-01 false What is emergency maintenance? 170.812 Section 170.812 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN RESERVATION ROADS PROGRAM BIA Road Maintenance § 170.812 What is emergency maintenance? Emergency maintenance is work that...

19. SOUTH FRONT ELEVATION OF BUILDING 216 (AMMUNITION MAINTENANCE SHOP) ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

19. SOUTH FRONT ELEVATION OF BUILDING 216 (AMMUNITION MAINTENANCE SHOP) IN ASSEMBLY AREA. - Loring Air Force Base, Weapons Storage Area, Northeastern corner of base at northern end of Maine Road, Limestone, Aroostook County, ME

Projection of Maximum Software Maintenance Manning Levels.

DTIC Science & Technology

1982-06-01

mainte- nance team development and for outyear support resource estimation, and to provide an analysis of applications of the model in areas other...by General Research Corporation of Santa Barbara, Ca., indicated that the Planning and Resource Management Information System (PARRIS) at the Air Force...determined that when the optimal input effort is applied, steps in the development would be achieved at a rate proportional to V(t). Thus the work-rate could

A Comparative Study of Teacher Education Institutions and Machine Tool Manufacturers to Determine Course Content for a Machine Tool Maintenance Course in the Woodworking Area.

ERIC Educational Resources Information Center

Polette, Douglas Lee

To determine what type of maintenance training the prospective industrial arts teacher should receive in the woodworking area and how this information should be taught, a research instrument was constructed using information obtained from a review of relevant literature. Specific data on machine tool maintenance was gathered by the use of two…

Review of Maintenance and Repair Times for Components in Technological Facilities

DOE Office of Scientific and Technical Information (OSTI.GOV)

L. C. Cadwallader

2012-11-01

This report is a compilation of some unique component repair time data and it also presents citations of more extensive reports where lists of repair times can be found. This collection of information should support analysts who seek to quantify maintainability and availability of high technology and nuclear energy production systems. While there are newer sources of repair time information, most, if not all, of the newer sources are proprietary and cannot be shared. This report offers data that, while older, is openly accessible and can serve as reasonable estimates of repair times, at least for initial studies. Some timesmore » were found for maintenance times in radiation environments, and some guidance for multiplicative factors to use to account for work in contamination areas.« less

On the Existence of Semantic Working Memory: Evidence for Direct Semantic Maintenance

ERIC Educational Resources Information Center

Shivde, Geeta; Anderson, Michael C.

2011-01-01

Despite widespread acknowledgment of the importance of online semantic maintenance, there has been astonishingly little work that clearly establishes this construct. We review the extant work relevant to short-term retention of meaning and show that, although consistent with semantic working memory, most data can be accommodated in other ways.…

New regulations for radiation protection for work involving radioactive fallout emitted by the TEPCO Fukushima Daiichi APP accident: application expansion to recovery and reconstruction work.

PubMed

Yasui, Shojiro

2014-01-01

The accident at the Fukushima Daiichi Atomic Power Plant that accompanied the Great East Japan Earthquake on March 11, 2011 released a large amount of radioactive material. To rehabilitate the contaminated areas, the government of Japan decided to carry out decontamination work. In April 2012, the Nuclear Emergency Response Headquarters (NERH) started dividing the restricted areas into three sub-areas based on the ambient dose rate. In accordance with the rearrangement of the restricted area, NERH decided to allow resumption of business activities, including manufacturing and farming, as well as operation of hospitals, welfare facilities, and shops and related subordinate tasks, such as maintenance, repair, and transportation. As a result, the government needed regulations for radiation protection for workers engaged in those activities. The issues that arose in the deliberation of the regulations were distilled into two points: 1) whether radiation protection systems established for a planned exposure situation should apply to construction and agricultural work activities in an existing exposure situation, and 2) how to simplify the regulation in accordance with the nature of the work activities. Further research and development concerning the following issues are warranted: a) the relationship between the radioactive concentrations of materials handled and the risk of internal exposure, and b) the relationship between the radioactive concentration of the soil and the surface contamination level.

Working session 4: Preventative and corrective measures

DOE Office of Scientific and Technical Information (OSTI.GOV)

Clark, R.; Slama, G.

1997-02-01

The Preventive and Corrective Measures working session included 13 members from France, Germany, Japan, Spain, Slovenia, and the United States. Attendee experience included regulators, utilities, three steam generator vendors, consultants and researchers. Discussions centered on four principal topics: (1) alternate materials, (2) mechanical mitigation, (3) maintenance, and (4) water chemistry. New or replacement steam generators and original equipment steam generators were separately addressed. Four papers were presented to the session, to provide information and stimulate various discussion topics. Topics discussed and issues raised during the several meeting sessions are provided below, followed by summary conclusions and recommendations on which themore » group was able to reach a majority consensus. The working session was composed of individuals with diverse experience and varied areas of specialized expertise. The somewhat broad range of topics addressed by the group at times saw discussion participation by only a few individuals. As in any technical meeting where all are allowed the opportunity to speak their mind, straying from an Individual topic was not unusual. Where useful, these stray topics are also presented below within the context In which they occurred. The main categories of discussion were: minimize sludge; new steam generators; maintenance; mechanical mitigation; water chemistry.« less

Cryogenics maintenance strategy

NASA Astrophysics Data System (ADS)

Cruzat, Fabiola

2012-09-01

ALMA is an interferometer composed of 66 independent systems, with specific maintenance requirements for each subsystem. To optimize the observation time and reduce downtime maintenance, requirements are very demanding. One subsystem with high maintenance efforts is cryogenics and vacuum. To organize the maintenance, the Cryogenic and Vacuum department is using and implementing different tools. These are monitoring and problem reporting systems and CMMS. This leads to different maintenance approaches: Preventive Maintenance, Corrective Maintenance and Condition Based Maintenance. In order to coordinate activities with other departments the preventive maintenance schedule is kept as flexible as systems allow. To cope with unavoidable failures, the team has to be prepared to work under any condition with the spares on time. Computerized maintenance management system (CMMS) will help to manage inventory control for reliable spare part handling, the correct record of work orders and traceability of maintenance activities. For an optimized approach the department is currently evaluating where preventive or condition based maintenance applies to comply with the individual system demand. Considering the change from maintenance contracts to in-house maintenance will help to minimize costs and increase availability of parts. Due to increased number of system and tasks the cryo team needs to grow. Training of all staff members is mandatory, in depth knowledge must be built up by doing complex maintenance activities in the Cryo group, use of advanced computerized metrology systems.

46. SOUTHEAST SIDE ELEVATION OF BUILDING 361 (MUNITIONS MAINTENANCE SQUADRON ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

46. SOUTHEAST SIDE ELEVATION OF BUILDING 361 (MUNITIONS MAINTENANCE SQUADRON ADMINISTRATION BUILDING) IN BASE SPARES AREA. - Loring Air Force Base, Weapons Storage Area, Northeastern corner of base at northern end of Maine Road, Limestone, Aroostook County, ME

47. EAST CORNER OF BUILDING 361 (MUNITIONS MAINTENANCE SQUADRON ADMINISTRATION ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

47. EAST CORNER OF BUILDING 361 (MUNITIONS MAINTENANCE SQUADRON ADMINISTRATION BUILDING) IN BASE SPARES AREA. - Loring Air Force Base, Weapons Storage Area, Northeastern corner of base at northern end of Maine Road, Limestone, Aroostook County, ME

Refinement of a methodology for siting maintenance area headquarters.

DOT National Transportation Integrated Search

1986-01-01

Prior to this study, a methodology that generates travel time, or isochronal, contours around area headquarters or the housing bases of maintenance crews was developed. The methodology was then pilot tested for the Charlottesville Residency, and was ...

Use of natural products for oral hygiene maintenance: revisiting traditional medicine.

PubMed

Gupta, Pankaj; Shetty, Heeresh

2018-03-27

The use of traditional means of oral hygiene maintenance has a long-recorded history, with widespread usage in rural areas of Africa, South America and the Indian subcontinent till date. Though dental healthcare professionals and the general population, especially in the urban areas can have the temptation of out-rightly rejecting them as ineffective, the usage of these natural products is based on time-tested scientific principles. The present article provides an overview of the major traditional practices of oral hygiene maintenance and how they compare against the modern-day armamentarium of oral hygiene maintenance.

Managing Highway Maintenance: Standards for Maintenance Work, Part 1, Unit 8, Level 2.

ERIC Educational Resources Information Center

Federal Highway Administration (DOT), Washington, DC. Offices of Research and Development.

Part of the series "Managing Highway Maintenance," the unit is about maintenance standards and is designed for superintendents and senior foremen who are responsible for scheduling and controlling routine maintenance. It describes different kinds of standards, why and how standards are developed, and how standards are to be used and…

Managing Highway Maintenance: Maintenance Management--by Objectives, Unit 10, Level 2.

ERIC Educational Resources Information Center

Federal Highway Administration (DOT), Washington, DC. Offices of Research and Development.

Part of the series "Managing Highway Maintenance," the unit deals with management by objectives--its definition, how it works, and necessary steps for application. It is designed for maintenance supervisors who are familiar with maintenance management systems. The format is a programed, self-instructional approach in which questions are…

Evidence for Human Fronto-Central Gamma Activity during Long-Term Memory Encoding of Word Sequences

PubMed Central

Meeuwissen, Esther Berendina; Takashima, Atsuko; Fernández, Guillén; Jensen, Ole

2011-01-01

Although human gamma activity (30–80 Hz) associated with visual processing is often reported, it is not clear to what extend gamma activity can be reliably detected non-invasively from frontal areas during complex cognitive tasks such as long term memory (LTM) formation. We conducted a memory experiment composed of 35 blocks each having three parts: LTM encoding, working memory (WM) maintenance and LTM retrieval. In the LTM encoding and WM maintenance parts, participants had to respectively encode or maintain the order of three sequentially presented words. During LTM retrieval subjects had to reproduce these sequences. Using magnetoencephalography (MEG) we identified significant differences in the gamma and beta activity. Robust gamma activity (55–65 Hz) in left BA6 (supplementary motor area (SMA)/pre-SMA) was stronger during LTM rehearsal than during WM maintenance. The gamma activity was sustained throughout the 3.4 s rehearsal period during which a fixation cross was presented. Importantly, the difference in gamma band activity correlated with memory performance over subjects. Further we observed a weak gamma power difference in left BA6 during the first half of the LTM rehearsal interval larger for successfully than unsuccessfully reproduced word triplets. In the beta band, we found a power decrease in left anterior regions during LTM rehearsal compared to WM maintenance. Also this suppression of beta power correlated with memory performance over subjects. Our findings show that an extended network of brain areas, characterized by oscillatory activity in different frequency bands, supports the encoding of word sequences in LTM. Gamma band activity in BA6 possibly reflects memory processes associated with language and timing, and suppression of beta activity at left frontal sensors is likely to reflect the release of inhibition directly associated with the engagement of language functions. PMID:21738641

Domain-general involvement of the posterior frontolateral cortex in time-based resource-sharing in working memory: An fMRI study.

PubMed

Vergauwe, Evie; Hartstra, Egbert; Barrouillet, Pierre; Brass, Marcel

2015-07-15

Working memory is often defined in cognitive psychology as a system devoted to the simultaneous processing and maintenance of information. In line with the time-based resource-sharing model of working memory (TBRS; Barrouillet and Camos, 2015; Barrouillet et al., 2004), there is accumulating evidence that, when memory items have to be maintained while performing a concurrent activity, memory performance depends on the cognitive load of this activity, independently of the domain involved. The present study used fMRI to identify regions in the brain that are sensitive to variations in cognitive load in a domain-general way. More precisely, we aimed at identifying brain areas that activate during maintenance of memory items as a direct function of the cognitive load induced by both verbal and spatial concurrent tasks. Results show that the right IFJ and bilateral SPL/IPS are the only areas showing an increased involvement as cognitive load increases and do so in a domain general manner. When correlating the fMRI signal with the approximated cognitive load as defined by the TBRS model, it was shown that the main focus of the cognitive load-related activation is located in the right IFJ. The present findings indicate that the IFJ makes domain-general contributions to time-based resource-sharing in working memory and allowed us to generate the novel hypothesis by which the IFJ might be the neural basis for the process of rapid switching. We argue that the IFJ might be a crucial part of a central attentional bottleneck in the brain because of its inability to upload more than one task rule at once. Copyright © 2015 Elsevier Inc. All rights reserved.

Carpeting/Flooring: Revitalizing Carpets.

ERIC Educational Resources Information Center

Woolford, Alison; Hill, Michael

2003-01-01

With properly specified fiber and a comprehensive maintenance program, school carpets can retain their appearance longer. Discusses carpet characteristics; proper carpet installation; effective preventive-maintenance programs (keep outside areas clean, use soil barriers, protect desk areas, maintain HVAC systems, and specify eating, drinking, and…

Sidewalk undermining studies : phase I, hydrology and maintenance studies.

DOT National Transportation Integrated Search

1975-01-01

Studies of the maintenance and hydrology considerations involved in a sidewalk undermining problem in the Fairfax area are reported. Sidewalk undermining is attributed principally to a highly erodible soil found in much of the area and to the fact th...

Optimizing work zones for highway maintenance with floating car data (FCD) : final report.

DOT National Transportation Integrated Search

2015-12-01

One of the main tools that the Department of Transportation (DOT) of each state in the United States should have to : support their work zone activities is a sound model that produces adequate work zone schedules for roadway maintenance : and constru...

Elements of an Asbestos Operations and Maintenance (O&M) Program

EPA Pesticide Factsheets

Links to descriptions of Elements of an Operations and Maintenance (O&M) Program: Training, Occupant Notification, Monitoring ACM, Job-Site Controls for Work Involving ACM, Safe Work Practices, Recordkeeping, Worker Protection.

Weldon Spring, Missouri, Site Annual Report for Calendar Year 2015 June 2016

DOE Office of Scientific and Technical Information (OSTI.GOV)

Starr, Ken; Deyo, Yvonne

1.1 Purpose and Scope. This report summarizes the activities, compliance status, annual inspection, and environmental monitoring results from calendar year 2015 for the Weldon Spring, Missouri, Site. The U.S. Department of Energy (DOE) prepares this annual report as part of the site’s long-term surveillance and maintenance (LTS&M) activities, in accordance with the requirements of the Long-Term Surveillance and Maintenance Plan for the Weldon Spring, Missouri, Site (LTS&M Plan) (DOE 2008a) and the Federal Facility Agreement for the Weldon Spring Site (DOE 2006). The Weldon Spring site is a Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) site. 1.2 Site Description.more » The Weldon Spring site is located in St. Charles County, Missouri, about 30 miles west of St. Louis, Missouri (Figure 1). The site comprises two geographically distinct, DOE-owned properties: the former Weldon Spring Chemical Plant and Raffinate Pit sites (Chemical Plant) and the former Weldon Spring Quarry (Quarry). The former Chemical Plant is located about 2 miles southwest of the junction of Missouri State Route 94 and Interstate 64. The Quarry is about 4 miles southwest of the former Chemical Plant. Both sites are accessible from Missouri State Route 94. During the early 1940s, the Department of the Army acquired 17,232 acres of private land in St. Charles County for the construction of the Weldon Spring Ordnance Works facility. The former Ordnance Works site has since been divided into several contiguous areas under different ownership, as depicted in Figure 2. Current land use of the former Ordnance Works site includes the former Chemical Plant and Quarry, the U.S. Army Reserve Weldon Spring Training Area, the Missouri Department of Conservation (MDC), the Missouri Department of Natural Resources (MDNR) Division of State Parks (MDNR-Parks), Francis Howell High School, a St. Charles County highway maintenance (formerly Missouri Department of Transportation [MoDOT]) facility, the Public Water Supply District No. 2 water supply facility, the St. Charles County law enforcement training center, the village of Weldon Spring Heights, and a University of Missouri research park. The former Chemical Plant and Quarry areas total 228.16 acres. The Former Chemical Plant property occupies 219.50 acres, and the Quarry occupies 8.66 acres.« less

36 CFR 212.4 - Construction and maintenance.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 36 Parks, Forests, and Public Property 2 2010-07-01 2010-07-01 false Construction and maintenance... TRAVEL MANAGEMENT Administration of the Forest Transportation System § 212.4 Construction and maintenance. (a) Construction and maintenance work on forest transportation facilities with appropriated funds...

Computerizing Maintenance Management Improves School Processes.

ERIC Educational Resources Information Center

Conroy, Pat

2002-01-01

Describes how a Computerized Maintenance Management System (CMMS), a centralized maintenance operations database that facilitates work order procedures and staff directives, can help individual school campuses and school districts to manage maintenance. Presents the benefits of CMMS and things to consider in CMMS selection. (EV)

GENESIS 2: Advanced lunar outpost

NASA Technical Reports Server (NTRS)

Moore, Gary T.

1991-01-01

Advanced, second-generation lunar habitats for astronauts and mission specialists working on the Moon are investigated. The work was based on design constraints set forth in previous publications. Design recommendations are based on environmental response to the lunar environment, habitability, safety, near-term technology, replaceability and modularity, and suitability for NASA lunar research missions in the early 21st century. Scientists, engineers, and architects from NASA/JSC, Wisconsin aeronautical industry, and area universities gave technical input and offered critiques at design reviews throughout the process. The recommended design uses a lunar lava tube, with construction using a combination of Space Station Freedom-derived modules and lightweight Kevlar-laminate inflatables. The outpost includes research laboratories and biotron, crew quarters and support facility, mission control, health maintenance facility, and related areas for functional and psychological requirements. Furniture, specialized equipment, and lighting are included in the design analysis.

Managing Highway Maintenance: Management Data and Maintenance Standards; Levels 1 & 2, For Training in Maintenance Standards and Crew Scheduling.

ERIC Educational Resources Information Center

Federal Highway Administration (DOT), Washington, DC. Offices of Research and Development.

Part of the series "Managing Highway Maintenance," the unit is designed for use with unit eight, level one, and unit 13, level two, and the certification tests for those units in the series. It contains typical management data and selected highway maintenance standards for the areas of: surface and shoulder; roadside and drainage; traffic…

75 FR 57532 - In the Matter of: Stone & Webster Construction, Inc.; Confirmatory Order (Effective Immediately)

Federal Register 2010, 2011, 2012, 2013, 2014

2010-09-21

... to working in the nuclear industry for workers coming in without nuclear experience; New Hire... employees in its Nuclear Services (i.e., construction) and Nuclear Maintenance Divisions working at nuclear... (i.e., construction) and Nuclear Maintenance Divisions working at nuclear facilities addressing: (a...

Spectrotemporal dynamics of the EEG during working memory encoding and maintenance predicts individual behavioral capacity.

PubMed

Bashivan, Pouya; Bidelman, Gavin M; Yeasin, Mohammed

2014-12-01

We investigated the effect of memory load on encoding and maintenance of information in working memory. Electroencephalography (EEG) signals were recorded while participants performed a modified Sternberg visual memory task. Independent component analysis (ICA) was used to factorise the EEG signals into distinct temporal activations to perform spectrotemporal analysis and localisation of source activities. We found 'encoding' and 'maintenance' operations were correlated with negative and positive changes in α-band power, respectively. Transient activities were observed during encoding of information in the bilateral cuneus, precuneus, inferior parietal gyrus and fusiform gyrus, and a sustained activity in the inferior frontal gyrus. Strong correlations were also observed between changes in α-power and behavioral performance during both encoding and maintenance. Furthermore, it was also found that individuals with higher working memory capacity experienced stronger neural oscillatory responses during the encoding of visual objects into working memory. Our results suggest an interplay between two distinct neural pathways and different spatiotemporal operations during the encoding and maintenance of information which predict individual differences in working memory capacity observed at the behavioral level. © 2014 Federation of European Neuroscience Societies and John Wiley & Sons Ltd.

Defense Logistics: Space-Available Travel Challenges May Be Exacerbated If Eligibility Expands

DTIC Science & Technology

2012-09-10

space-available travelers’ use of terminal facilities results in additional maintenance costs for waiting areas, restrooms, and vending machines ...additional required maintenance. For example, additional travelers’ use of waiting areas, restrooms, and vending machines in the terminals could require

Traffic incident management in construction and maintenance work zones.

DOT National Transportation Integrated Search

2009-01-01

In 2004, the Federal Highway Administration published updated rules governing work zone safety and mobility; all highway construction and maintenance projects using federal-aid highway funds are required to develop transportation management plans (TM...

Foale uses takes photographs of a BCAT SGSM in the U.S. Lab during Expedition 8

NASA Image and Video Library

2004-04-05

ISS008-E-20610 (5 April 2004) --- Astronaut C. Michael Foale, Expedition 8 commander and NASA ISS science officer, uses a digital still camera to photograph a Slow Growth Sample Module (SGSM) for the Binary Colloidal Alloy Test-3 (BCAT) experiment. The SGSM is on a mounting bracket attached to the Maintenance Work Area (MWA) table set up in the Destiny laboratory of the International Space Station (ISS).

Additive Manufacturing Solutions in the United States Marine Corps

DTIC Science & Technology

2017-12-01

4 demonstrates this process. A laser or a blade then cuts each layer to shape the final product. Wohlers (2017) states that “the cost of material is...printed sole for its running shoes. The top of the shoe is constructed from conventional fabric and is attached to the sole after it is printed...milling). This runs on 208 volts and provides a small work area (T. Arndt, personal communication, June 21, 2017). 1st Maintenance Battalion Marines

Psychodynamic Perspective on Therapeutic Boundaries

PubMed Central

Bridges, Nancy A.

1999-01-01

Discussion of boundaries in therapeutic work most often focuses on boundary maintenance, risk management factors, and boundary violations. The psychodynamic meaning and clinical management of boundaries in therapeutic relationships remains a neglected area of discourse. Clinical vignettes will illustrate a psychodynamic, developmental-relational perspective using boundary dilemmas to deepen and advance the therapeutic process. This article contributes to the dialogue about the process of making meaning and constructing therapeutically useful and creative boundaries that further the psychotherapeutic process. PMID:10523432

78 FR 59841 - Approval and Promulgation of Air Quality Implementation Plans; West Virginia; West Virginia's...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-09-30

...EPA is approving a redesignation request and State Implementation Plan (SIP) revision submitted by the State of West Virginia. The West Virginia Department of Environmental Protection (WVDEP) requested that the West Virginia portion of the Wheeling, WV-OH fine particulate matter (PM2.5) nonattainment area (``Wheeling Area'' or ``Area'') be redesignated as attainment for the 1997 annual PM2.5 national ambient air quality standard (NAAQS). In this rulemaking action, EPA is approving the 1997 annual PM2.5 redesignation request for the West Virginia portion of the Area. EPA is also approving the maintenance plan SIP revision that the State submitted in conjunction with its redesignation request. The maintenance plan provides for continued attainment of the 1997 annual PM2.5 NAAQS for 10 years after redesignation of the West Virginia portion of the Area. The maintenance plan includes a comprehensive emissions inventory that EPA is approving in this rulemaking. The maintenance plan also includes an insignificance determination for the onroad motor vehicle contribution of PM2.5, nitrogen oxides (NOX), and sulfur dioxide (SO2) for the West Virginia portion of the Area for purposes of transportation conformity. EPA is also approving West Virginia's insignificance determination for transportation conformity. In addition, EPA is also finding that the Area continues to attain the standard. This rulemaking action approving the 1997 annual PM2.5 NAAQS redesignation request, maintenance plan, comprehensive emissions inventory, and insignificance determination for transportation conformity for the West Virginia portion of the Area is based on EPA's determination that the Area has met the criteria for redesignation to attainment specified in the Clean Air Act (CAA).

Depot Maintenance: Air Force is Assessing Engine Maintenance Options for Work Currently Performed at Kelly Aviation Center

DTIC Science & Technology

2011-02-11

on TF39 engines, which are typically used for C-5 Galaxy aircraft; T56 engines, which are typically used for C-130 aircraft; and fuel accessories on...conducting separate cost-benefit analyses for the TF39 and T56 engine maintenance work. Under Air Force guidance for depot-level source-of-repair selection...Force has not developed specific risk mitigation plans for the TF39 or T56 engines because it is still assessing how the work will be performed

Fall from equipment injuries in U.S. mining: identification of specific research areas for future investigation.

PubMed

Moore, Susan M; Porter, William L; Dempsey, Patrick G

2009-01-01

The objective of this study was to evaluate the circumstances leading to fall from equipment injuries in the mining industry. The 2006 and 2007 Mine Safety and Health Administration annual injury databases were utilized for this study whereby the injury narrative, nature of injury, body part injured, mine type, age at injury, and days lost were evaluated for each injury. The majority of injuries occurred at surface mining facilities (approximately 60%) with fractures and sprains/strains being the most common injuries occurring to the major joints of the body. Nearly 50% of injuries occurred during ingress/egress, predominantely during egress, and approximately 25% of injuries occurred during maintenance tasks. The majority of injuries occurred in relation to large trucks, wheel loaders, dozers, and conveyors/belts. The severity of injury was independent of age and the median days lost was seven days; however, there was a large range in severity. From the data obtained in this study, several different research areas have been identified for future work, which include balance and stability control when descending ladders and equipment design for maintenance tasks.

The Role of Aquaporins in Ocular Lens Homeostasis

PubMed Central

Schey, Kevin L.; Petrova, Rosica S.; Gletten, Romell B.; Donaldson, Paul J.

2017-01-01

Aquaporins (AQPs), by playing essential roles in the maintenance of ocular lens homeostasis, contribute to the establishment and maintenance of the overall optical properties of the lens over many decades of life. Three aquaporins, AQP0, AQP1 and AQP5, each with distinctly different functional properties, are abundantly and differentially expressed in the different regions of the ocular lens. Furthermore, the diversity of AQP functionality is increased in the absence of protein turnover by age-related modifications to lens AQPs that are proposed to alter AQP function in the different regions of the lens. These regional differences in AQP functionality are proposed to contribute to the generation and directionality of the lens internal microcirculation; a system of circulating ionic and fluid fluxes that delivers nutrients to and removes wastes from the lens faster than could be achieved by passive diffusion alone. In this review, we present how regional differences in lens AQP isoforms potentially contribute to this microcirculation system by highlighting current areas of investigation and emphasizing areas where future work is required. PMID:29231874

Simultaneous Deployment and Tracking Multi-Robot Strategies with Connectivity Maintenance

PubMed Central

Tardós, Javier; Aragues, Rosario; Sagüés, Carlos; Rubio, Carlos

2018-01-01

Multi-robot teams composed of ground and aerial vehicles have gained attention during the last few years. We present a scenario where both types of robots must monitor the same area from different view points. In this paper, we propose two Lloyd-based tracking strategies to allow the ground robots (agents) to follow the aerial ones (targets), keeping the connectivity between the agents. The first strategy establishes density functions on the environment so that the targets acquire more importance than other zones, while the second one iteratively modifies the virtual limits of the working area depending on the positions of the targets. We consider the connectivity maintenance due to the fact that coverage tasks tend to spread the agents as much as possible, which is addressed by restricting their motions so that they keep the links of a minimum spanning tree of the communication graph. We provide a thorough parametric study of the performance of the proposed strategies under several simulated scenarios. In addition, the methods are implemented and tested using realistic robotic simulation environments and real experiments. PMID:29558446

Using of New Management Approaches in the Field of Personal Marketing in the Transport Company

NASA Astrophysics Data System (ADS)

Matusova, Dominika; Gogolova, Martina

2017-10-01

Personal marketing is a relatively new field in the theory and practice of human resources (HR) activities in the corporate and business sector. As a separate area of HR management was established of the earmarking of personnel management. In the article is mentioned about the facility manager. This position introduces a specific category - behaviour of manager. The facility manager has to dispose the skills from the areas: operation and maintenance, property, facility management processes, human factors of environment, planning, function devices, finance and quality management and innovation and communication. In the article is described the situation in transport company, specifically - Railway Company Slovakia, Inc. (ZSSK). Employees of the company works in departments as: managers, sellers, operators for services and maintenance, economists and controllers. The transport company had 5949 employees in 2015. That was about 108 employees more than the previous year. Facility manager and the company, set the targets which want to achieve within the planned time. Beyond the objectives are fundamental the values of company, business vision and mission.

Roadside maintenance

DOT National Transportation Integrated Search

2010-01-01

Roadside Maintenance is a unique element within the highway maintenance program because much of the work involves caring for and/or controlling vegetation. Roadside vegetation, if managed properly, can become more naturally self-sustaining over time ...

Visual-Spatial Attention Aids the Maintenance of Object Representations in Visual Working Memory

PubMed Central

Williams, Melonie; Pouget, Pierre; Boucher, Leanne; Woodman, Geoffrey F.

2013-01-01

Theories have proposed that the maintenance of object representations in visual working memory is aided by a spatial rehearsal mechanism. In this study, we used two different approaches to test the hypothesis that overt and covert visual-spatial attention mechanisms contribute to the maintenance of object representations in visual working memory. First, we tracked observers’ eye movements while remembering a variable number of objects during change-detection tasks. We observed that during the blank retention interval, participants spontaneously shifted gaze to the locations that the objects had occupied in the memory array. Next, we hypothesized that if attention mechanisms contribute to the maintenance of object representations, then drawing attention away from the object locations during the retention interval would impair object memory during these change-detection tasks. Supporting this prediction, we found that attending to the fixation point in anticipation of a brief probe stimulus during the retention interval reduced change-detection accuracy even on the trials in which no probe occurred. These findings support models of working memory in which visual-spatial selection mechanisms contribute to the maintenance of object representations. PMID:23371773

20. NORTHWEST CORNER OF BUILDING 216 (AMMUNITION MAINTENANCE SHOP) IN ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

20. NORTHWEST CORNER OF BUILDING 216 (AMMUNITION MAINTENANCE SHOP) IN ASSEMBLY AREA SHOWING SHAPE OF EARTHEN MOUND COVERING AND RETAINING WALL. - Loring Air Force Base, Weapons Storage Area, Northeastern corner of base at northern end of Maine Road, Limestone, Aroostook County, ME

49 CFR 214.341 - Roadway maintenance machines.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 49 Transportation 4 2011-10-01 2011-10-01 false Roadway maintenance machines. 214.341 Section 214... Roadway maintenance machines. (a) Each employer shall include in its on-track safety program specific provisions for the safety of roadway workers who operate or work near roadway maintenance machines. Those...

Workplace risk factors for cancer in the German rubber industry: Part 1. Mortality from respiratory cancers

PubMed Central

Weiland, S. K.; Straif, K.; Chambless, L.; Werner, B.; Mundt, K. A.; Bucher, A.; Birk, T.; Keil, U.

1998-01-01

OBJECTIVES: To determine the cancer specific mortality by work area among active and retired male workers in the German rubber industry. METHODS: A cohort of 11,663 male German workers was followed up for mortality from 1 January 1981 to 31 December 1991. Cohort members were classified as active (n = 7536) or retired (n = 4127) as of 1 January 1981 and had been employed for at least one year in one of five study plants producing tyres or technical rubber goods. Work histories were reconstructed with routinely documented "cost centre codes" which were classified into six categories: I preparation of materials; II production of technical rubber goods; III production of tyres; IV storage and dispatch; V maintenance; and VI others. Standardised mortality ratios (SMRs) adjusted for age and calendar year and 95% confidence intervals (95% CIs), stratified by work area (employment in respective work area for at least one year) and time related variables (year of hire, lagged years of employment in work area), were calculated from national reference rates. RESULTS: SMRs for laryngeal cancer were highest in work area I (SMR 253; 95% CI 93 to 551) and were significant among workers who were employed for > 10 years in this work area (SMR 330; 95% CI 107 to 779). Increased mortality rates from lung cancer were identified in work areas I (SMR 162; 95% CI 129 to 202), II (SMR 134; 95% CI 109 to 163), and V (SMR 131; 95% CI 102 to 167). Mortality from pleural cancer was increased in all six work areas, and significant excesses were found in work areas I (SMR 448; 95% CI 122 to 1146), II (SMR 505; 95% CI 202 to 1040), and V (SMR 554; 95% CI 179 to 1290). CONCLUSION: A causal relation between the excess of pleural cancer and exposure to asbestos among rubber workers is plausible and likely. In this study, the pattern of excess of lung cancer parallels the pattern of excess of pleural cancer. This points to asbestos as one risk factor for the excess deaths from lung cancer among rubber workers. The study provides further evidence for an increased mortality from laryngeal cancer among workers in the rubber industry, particularly in work area I.   PMID:9764109

Crashworthiness testing of a portable maintenance work-zone barrier.

DOT National Transportation Integrated Search

2008-12-01

Barrier and shadow vehicles generally provide Caltrans maintenance workers protection from errant vehicles entering the work zones, from the upstream direction of traffic flow. This type of protection does not protect workers from vehicles entering t...

Materials Research Conducted Aboard the International Space Station: Facilities Overview, Operational Procedures, and Experimental Outcomes

NASA Technical Reports Server (NTRS)

Grugel, Richard N.; Luz, Paul; Smith, Guy; Spivey, Reggie; Jeter, Linda; Gillies, Donald; Hua, Fay; Anikumar, A. V.

2007-01-01

The Microgravity Science Glovebox (MSG) and Maintenance Work Area (MWA) are facilities aboard the International Space Station (ISS) that were used to successfully conduct experiments in support of, respectively, the Pore Formation and Mobility Investigation (PFMI) and the In-Space Soldering Investigation (ISSI). The capabilities of these facilities are briefly discussed and then demonstrated by presenting "real-time" and subsequently down-linked video-taped examples from the abovementioned experiments. Data interpretation, ISS telescience, some lessons learned, and the need of such facilities for conducting work in support of understanding materials behavior, particularly fluid processing and transport scenarios, in low-gravity environments is discussed.

Materials Research Conducted Aboard the International Space Station: Facilities Overview, Operational Procedures, and Experimental Outcomes

NASA Technical Reports Server (NTRS)

Grugel, R. N.; Luz, P.; Smith, G. A.; Spivey, R.; Jeter, L.; Gillies, D. C.; Hua, F.; Anilkumar, A. V.

2006-01-01

The Microgravity Science Glovebox (MSG) and Maintenance Work Area (MWA) are facilities aboard the International Space Station (ISS) that were used to successfully conduct experiments in support of, respectively, the Pore Formation and Mobility Investigation (PFMI) and the In-Space Soldering Investigation (ISSI). The capabilities of these facilities are briefly discussed and then demonstrated by presenting real-time and subsequently down-linked video-taped examples from the abovementioned experiments. Data interpretation, ISS telescience, some lessons learned, and the need of such facilities for conducting work in support of understanding materials behavior, particularly fluid processing and transport scenarios, in low-gravity environments is discussed.

40 CFR 51.905 - How do areas transition from the 1-hour NAAQS to the 8-hour NAAQS and what are the anti...

Code of Federal Regulations, 2011 CFR

2011-07-01

... obligation exists. (2) 8-Hour NAAQS Nonattainment/1-Hour NAAQS Maintenance. An area designated nonattainment for the 8-hour NAAQS that is a maintenance area for the 1-hour NAAQS at the time of designation for... deferred for so long as the area continues to maintain the 8-hour NAAQS; and (2) No longer applies once the...

40 CFR 51.905 - How do areas transition from the 1-hour NAAQS to the 1997 8-hour NAAQS and what are the anti...

Code of Federal Regulations, 2014 CFR

2014-07-01

... obligation exists. (2) 8-Hour NAAQS Nonattainment/1-Hour NAAQS Maintenance. An area designated nonattainment for the 8-hour NAAQS that is a maintenance area for the 1-hour NAAQS at the time of designation for... deferred for so long as the area continues to maintain the 8-hour NAAQS; and (2) No longer applies once the...

40 CFR 51.905 - How do areas transition from the 1-hour NAAQS to the 8-hour NAAQS and what are the anti...

Code of Federal Regulations, 2010 CFR

2010-07-01

... obligation exists. (2) 8-Hour NAAQS Nonattainment/1-Hour NAAQS Maintenance. An area designated nonattainment for the 8-hour NAAQS that is a maintenance area for the 1-hour NAAQS at the time of designation for... deferred for so long as the area continues to maintain the 8-hour NAAQS; and (2) No longer applies once the...

40 CFR 51.905 - How do areas transition from the 1-hour NAAQS to the 1997 8-hour NAAQS and what are the anti...

Code of Federal Regulations, 2012 CFR

2012-07-01

... obligation exists. (2) 8-Hour NAAQS Nonattainment/1-Hour NAAQS Maintenance. An area designated nonattainment for the 8-hour NAAQS that is a maintenance area for the 1-hour NAAQS at the time of designation for... deferred for so long as the area continues to maintain the 8-hour NAAQS; and (2) No longer applies once the...

40 CFR 51.905 - How do areas transition from the 1-hour NAAQS to the 1997 8-hour NAAQS and what are the anti...

Code of Federal Regulations, 2013 CFR

2013-07-01

... obligation exists. (2) 8-Hour NAAQS Nonattainment/1-Hour NAAQS Maintenance. An area designated nonattainment for the 8-hour NAAQS that is a maintenance area for the 1-hour NAAQS at the time of designation for... deferred for so long as the area continues to maintain the 8-hour NAAQS; and (2) No longer applies once the...

Artificial intelligence for turboprop engine maintenance

DOE Office of Scientific and Technical Information (OSTI.GOV)

NONE

1995-01-01

Long-term maintenance operations, causing the unit to out of action, may seem economical - but they result in reduced operating readiness. Offsetting that concern, careless, hurried maintenance reduces margins of safety and reliability. Any tool that improves maintenance without causing a sharp increase in cost is valuable. Artificial intelligence (AI) is one of the tools. Expert system and neural networks are two different areas of AI that show promise for turboprop engine maintenance.

Does your equipment maintenance management program measure up?

PubMed

Deinstadt, Deborah C

2003-01-01

Identifying a clear maintenance philosophy is the first step toward choosing the right program for your healthcare organization. The second step is gaining a clear understanding of how proposed savings and improvements will be delivered. The third and last step is requiring that the proposed company or manager have specific tools in place for measuring and analyzing program performance. There are three primary philosophies underlying current equipment management options. These include risk-transfer philosophy (e.g., maintenance insurance, service contracts, multi-vendor and outsource programs), asset management philosophy (e.g., programs delivering a management system based on managed time-and-materials), and internal management (in-house managed programs). The last step in selecting the right program is insisting that proper performance measurements be built into the proposed management program. A well-managed program provides results in three general areas: financial outcomes, operational improvements and process improvements. Financial outcomes are the easiest to measure. Operational and process improvements are more challenging to assess but equally important to the program's overall success. To accurately identify results in these three areas, the overall management program should measure the following eight separate components: procedures and support for department staff; equipment inventory, benchmark costs, and budget guidelines; experienced equipment support team; objective, independent analysis of maintenance events; repair documentation and reporting; vendor relations; equipment acquisition analysis; and recommendations for improvement. Do everything you reasonably can to assure that the selected company can work side-by-side with you, providing objective, measurable advice that is ultimately in your best interest. You will then know that you have been thorough in your marketplace selection and can confidently move into implementation, expecting tangible and successful results.

Research on large equipment maintenance system in life cycle

NASA Astrophysics Data System (ADS)

Xu, Xiaowei; Wang, Hongxia; Liu, Zhenxing; Zhang, Nan

2017-06-01

In order to change the current disadvantages of traditional large equipment maintenance concept, this article plans to apply the technical method of prognostics and health management to optimize equipment maintenance strategy and develop large equipment maintenance system. Combined with the maintenance procedures of various phases in life cycle, it concluded the formulation methods of maintenance program and implement plans of maintenance work. In the meantime, it takes account into the example of the dredger power system of the Waterway Bureau to establish the auxiliary platform of ship maintenance system in life cycle.

Cross-frequency synchronization connects networks of fast and slow oscillations during visual working memory maintenance

PubMed Central

Siebenhühner, Felix; Wang, Sheng H; Palva, J Matias; Palva, Satu

2016-01-01

Neuronal activity in sensory and fronto-parietal (FP) areas underlies the representation and attentional control, respectively, of sensory information maintained in visual working memory (VWM). Within these regions, beta/gamma phase-synchronization supports the integration of sensory functions, while synchronization in theta/alpha bands supports the regulation of attentional functions. A key challenge is to understand which mechanisms integrate neuronal processing across these distinct frequencies and thereby the sensory and attentional functions. We investigated whether such integration could be achieved by cross-frequency phase synchrony (CFS). Using concurrent magneto- and electroencephalography, we found that CFS was load-dependently enhanced between theta and alpha–gamma and between alpha and beta-gamma oscillations during VWM maintenance among visual, FP, and dorsal attention (DA) systems. CFS also connected the hubs of within-frequency-synchronized networks and its strength predicted individual VWM capacity. We propose that CFS integrates processing among synchronized neuronal networks from theta to gamma frequencies to link sensory and attentional functions. DOI: http://dx.doi.org/10.7554/eLife.13451.001 PMID:27669146

A Teamwork-Oriented Air Traffic Control Simulator

DTIC Science & Technology

2006-06-01

the software development methodology of this work , this chapter is viewed as the acquisition phase of this model. The end of the ...Maintenance phase Changed Verification Retirement Development Maintenance 37 because the different controllers working in these phases usually...traditional operation such as scaling the airport and personalizing the working environment. 4. Pilot Specification The

Development of performance-based evaluation methods and specifications for roadside maintenance.

DOT National Transportation Integrated Search

2011-01-01

This report documents the work performed during Project 0-6387, Performance Based Roadside : Maintenance Specifications. Quality assurance methods and specifications for roadside performance-based : maintenance contracts (PBMCs) were developed ...

Breaks and maintenance work in the water distribution systems and gastrointestinal illness: a cohort study.

PubMed

Nygård, Karin; Wahl, Erik; Krogh, Truls; Tveit, Odd Atle; Bøhleng, Erik; Tverdal, Aage; Aavitsland, Preben

2007-08-01

During maintenance work or breaks on the water distribution system, water pressure occasionally will be reduced. This may lead to intrusion of polluted water-either at the place of repair or through cracks or leaks elsewhere in the distribution system. The objective of this study was to assess whether breaks or maintenance work in the water distribution system with presumed loss of water pressure was associated with an increased risk of gastrointestinal illness among recipients. We conducted a cohort study among recipients of water from seven waterworks in Norway during 2003-04. One week after an episode of mains breaks or maintenance work on the water distribution system, the exposed and unexposed households were interviewed about gastrointestinal illness in the week following the episode. During the 1-week period after the episode, 12.7% of the exposed households reported gastrointestinal illness in the household, compared with 8.0% in the unexposed households [risk ratio (RR) 1.58, 95% confidence interval (CI): 1.1, 2.3]. The risk was highest in households with higher average water consumption. The attributable fraction among the exposed households was 37% in the week following exposure. Our results show that breaks and maintenance work in the water distribution systems caused an increased risk of gastrointestinal illness among water recipients. Better data on the occurrence of low-pressure episodes and improved registration of mains breaks and maintenance work on the water distribution network are needed in order to assess the public health burden of contamination of drinking water within the distribution network.

23 CFR 140.918 - Maintenance and extended construction.

Code of Federal Regulations, 2013 CFR

2013-04-01

... 23 Highways 1 2013-04-01 2013-04-01 false Maintenance and extended construction. 140.918 Section... REIMBURSEMENT Reimbursement for Railroad Work § 140.918 Maintenance and extended construction. The cost of maintenance and extended construction is reimbursable to the extent provided for in 23 CFR 646.216(f)(4), and...

23 CFR 140.918 - Maintenance and extended construction.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 23 Highways 1 2010-04-01 2010-04-01 false Maintenance and extended construction. 140.918 Section... REIMBURSEMENT Reimbursement for Railroad Work § 140.918 Maintenance and extended construction. The cost of maintenance and extended construction is reimbursable to the extent provided for in 23 CFR 646.216(f)(4), and...

23 CFR 140.918 - Maintenance and extended construction.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 23 Highways 1 2011-04-01 2011-04-01 false Maintenance and extended construction. 140.918 Section... REIMBURSEMENT Reimbursement for Railroad Work § 140.918 Maintenance and extended construction. The cost of maintenance and extended construction is reimbursable to the extent provided for in 23 CFR 646.216(f)(4), and...

23 CFR 140.918 - Maintenance and extended construction.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 23 Highways 1 2014-04-01 2014-04-01 false Maintenance and extended construction. 140.918 Section... REIMBURSEMENT Reimbursement for Railroad Work § 140.918 Maintenance and extended construction. The cost of maintenance and extended construction is reimbursable to the extent provided for in 23 CFR 646.216(f)(4), and...

23 CFR 140.918 - Maintenance and extended construction.

Code of Federal Regulations, 2012 CFR

2012-04-01

... 23 Highways 1 2012-04-01 2012-04-01 false Maintenance and extended construction. 140.918 Section... REIMBURSEMENT Reimbursement for Railroad Work § 140.918 Maintenance and extended construction. The cost of maintenance and extended construction is reimbursable to the extent provided for in 23 CFR 646.216(f)(4), and...

Cross-modal activation of auditory regions during visuo-spatial working memory in early deafness.

PubMed

Ding, Hao; Qin, Wen; Liang, Meng; Ming, Dong; Wan, Baikun; Li, Qiang; Yu, Chunshui

2015-09-01

Early deafness can reshape deprived auditory regions to enable the processing of signals from the remaining intact sensory modalities. Cross-modal activation has been observed in auditory regions during non-auditory tasks in early deaf subjects. In hearing subjects, visual working memory can evoke activation of the visual cortex, which further contributes to behavioural performance. In early deaf subjects, however, whether and how auditory regions participate in visual working memory remains unclear. We hypothesized that auditory regions may be involved in visual working memory processing and activation of auditory regions may contribute to the superior behavioural performance of early deaf subjects. In this study, 41 early deaf subjects (22 females and 19 males, age range: 20-26 years, age of onset of deafness < 2 years) and 40 age- and gender-matched hearing controls underwent functional magnetic resonance imaging during a visuo-spatial delayed recognition task that consisted of encoding, maintenance and recognition stages. The early deaf subjects exhibited faster reaction times on the spatial working memory task than did the hearing controls. Compared with hearing controls, deaf subjects exhibited increased activation in the superior temporal gyrus bilaterally during the recognition stage. This increased activation amplitude predicted faster and more accurate working memory performance in deaf subjects. Deaf subjects also had increased activation in the superior temporal gyrus bilaterally during the maintenance stage and in the right superior temporal gyrus during the encoding stage. These increased activation amplitude also predicted faster reaction times on the spatial working memory task in deaf subjects. These findings suggest that cross-modal plasticity occurs in auditory association areas in early deaf subjects. These areas are involved in visuo-spatial working memory. Furthermore, amplitudes of cross-modal activation during the maintenance stage were positively correlated with the age of onset of hearing aid use and were negatively correlated with the percentage of lifetime hearing aid use in deaf subjects. These findings suggest that earlier and longer hearing aid use may inhibit cross-modal reorganization in early deaf subjects. Granger causality analysis revealed that, compared to the hearing controls, the deaf subjects had an enhanced net causal flow from the frontal eye field to the superior temporal gyrus. These findings indicate that a top-down mechanism may better account for the cross-modal activation of auditory regions in early deaf subjects.See MacSweeney and Cardin (doi:10/1093/awv197) for a scientific commentary on this article. © The Author (2015). Published by Oxford University Press on behalf of the Guarantors of Brain. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

Vehicle accidents at maintenance and utility work zones.

DOT National Transportation Integrated Search

1978-01-01

The objective of this study was to determine the magnitude and characteristics of safety problems, in terms of reported accidents, that are associated with moving vehicular traffic around and through highway maintenance and utility work zones. This w...

Maintenance: organizational modes, activities and health and safety. Use of a French national survey and in-situ analyses.

PubMed

Grusenmeyer, Corinne

2014-12-01

Maintenance activities are identified as critical both to operator safety and to systems safety and reliability. However, it is still difficult to identify maintenance workers in French occupational accident and disease statistics. Moreover, few analyses of these activities and of organizational changes in this field have been conducted. This paper presents two different approaches to this same issue. Analyses were aimed firstly at identifying the occupational exposures of these operators and at comparing them with occupational exposures of production staff and, secondly at developing understanding of normal real maintenance activities, i.e. maintenance activities that are normally actually carried out, while taking into account the socio-technical system and maintenance organization within which they lie. The use of the French SUMER 2003 survey shows that occupational exposures of maintenance staff to various constraints are more frequent than occupational exposures of their production colleagues. However, maintenance staff appear to have greater independence. Analyses were also conducted in a subcontracting urban public transport company, who outsources some maintenance work. Those analyses highlight a complex network of companies involved in maintenance activities, a substantial number of work interruptions and a significant fragmentation of the internal technicians' activities that can be cognitively costly, reduce anticipation possibilities and lead to incidents or accidents. Above all they underline internal technicians' contributions to the completion of outsourced interventions and interdependent relationships between the activities of the internal and the external technicians. Outsourcing maintenance interventions thus raises the question of risks associated with the interdependence of actual work activities undertaken by the different types of staff, since they contribute to the same maintenance intervention. This study therefore pinpoints the need to integrate inter-organizational interactions in order to understand the variability of maintenance activities and its relationships with reliability and safety. In this respect, some suggestions are provided with a prevention aim. Copyright © 2014 Elsevier Ltd. All rights reserved.

Mathematical Modelling of Liner Piston Maintenance Activity using Field Data to Minimize Overhauling Time and Human Energy Consumption

NASA Astrophysics Data System (ADS)

Belkhode, Pramod Namdeorao

2017-06-01

Field data based model is proposed to reduce the overhauling time and human energy consumed in liner piston maintenance activity so as to increase the productivity of liner piston maintenance activity. The independent variables affecting the phenomenon such as anthropometric parameters of workers (Eastman Kodak Co. Ltd in Section VIA Appendix-A: Anthropometric Data. Ergonomic Design for People at Work, Van Nostrans Reinhold, New York, 1), workers parameters, specification of liner piston data, specification of tools used in liner piston maintenance activity, specification of solvents, axial clearance of big end bearing and bolt elongation, workstation data (Eastman Kodak Co. Ltd in Work Place Ergonomic Design for People at Work, Van Nostrans Reinhold, New York, 2) and extraneous variables, namely, temperature, humidity at workplace, illumination at workplace and noise at workplace (Eastman Kodak Co. Ltd in Chapter V Environment Ergonomic Design for People at Work, Van Nostrans Reinhold, New York, 3) are taken into account. The model is formulated for dependent variables of liner piston maintenance activity to minimize the overhauling time and human energy consumption so as to improve the productivity of liner piston maintenance activity. The developed model can predict the performance of liner piston maintenance activity which involves man and machine system (Schenck in Theories of Engineering Experimentation, Mc-Graw Hill, New York 4). The model is then optimized by optimization technique and the sensitivity analysis of the model has also been estimated.

[Life-style of medical personnel dwelling and working in agroindustrial area].

PubMed

Sorokina, M G; Kamaev, I A

2005-01-01

Results of sociological survey of medical personnel of typical agroindustrial area of Novgorod Oblast are presented. Data of self-registration of acute and chronic diseases and self-appraisal of one's health testify higher morbidity and health deterioration during last 3 years. Analysis of demographic characteristics, life-styles and labor conditions revealed complex of major factors impacting individual health and flow-out of professional medical personnel. Both amount of average monthly wage of physicians and paramedics, levels of their family income and welfare and as well degree of their inconsistence with cost of living of able-bodied population are established. Conditions of living and social maintenance, labor and off-labor activity, attitude to one's own health and spread of risk factors were analyzed. Management weaknesses of district and rural patient care institutions were established, including considerable exceeding of hygienic regulations established for medical personnel working load and higher spread of physical, chemical and biological risk factors of working environment harmful for health. Need in further enhancement of management of working process, occupational safety, labor remuneration and in increasing social safety, hygienic and curative activity of medical personnel is justified.

Maintenance of Traffic for Innovative Geometric Design Work Zones

DOT National Transportation Integrated Search

2015-12-01

Currently there are no guidelines within the Manual on Uniform Traffic Control Devices (MUTCD) on construction phasing and maintenance of traffic (MOT) for retrofit construction and maintenance projects involving innovative geometric designs. The res...

Facility Management Child Care Resource Book. Child Care Operations Center of Expertise.

ERIC Educational Resources Information Center

General Services Administration, Washington, DC. Public Buildings Service.

This guidebook provides maintenance and operations guidelines for managing General Services Administration (GSA) child care centers within the same standards and level of a GSA operated facility. Areas covered address cleaning standards and guidelines; equipment funding and inventory; maintenance of living environments and problem areas;…

123. VIEW, LOOKING WEST TOWARD GRINDING AREA OF MAINTENANCE SHOP. ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

123. VIEW, LOOKING WEST TOWARD GRINDING AREA OF MAINTENANCE SHOP. NOTE TRACK IN FLOOR FOR CARTS WITH HEAVY ITEMS, OVERHEAD JIB CRANE AT UPPER RIGHT, PARTIALLY OBSCURED "SG" LOGO ON CABINET, AND SIGNS ABOVE DOORWAY TO MILL. - Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, CO

39. Perimeter acquisition radar building room #504, techinal maintenance and ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

39. Perimeter acquisition radar building room #504, techinal maintenance and repair center (TMRC) and tactical support equipment (TSE) storage area; storage-travel wave tubes - Stanley R. Mickelsen Safeguard Complex, Perimeter Acquisition Radar Building, Limited Access Area, between Limited Access Patrol Road & Service Road A, Nekoma, Cavalier County, ND

76 FR 21272 - Special Areas; Roadless Area Conservation; Applicability to the National Forests in Colorado

Federal Register 2010, 2011, 2012, 2013, 2014

2011-04-15

... roads for fuels treatment and for ecosystem maintenance and restoration, but these are restricted to..., the tree cutting exceptions for fuel treatment and ecosystem maintenance and restoration are... term hazardous fuels has been added. Hazardous fuels are defined as excessive live or dead wildland...

Processing of Global Area Coverage (GAC) Data of the TIROS-N/NOAA Series Polar Orbiters.

DTIC Science & Technology

1984-10-01

National Climatic Data Center as tape copies that generally contain calibration information. In order to process the data on the SPADS , the data must be...the SPADS Eclipse S250, for maintenance of the software and for understanding data formats as well as the techniques involved in processing the GAC...constructive response will be appreciated. * 2. The Raw Data 2.1 How to Order Data Everybody working for the SPAD should contact the department head to

Physical Performance Characteristics of Military Aircraft Maintenance Personnel Resistant to Work-Related Musculoskeletal Disorders of the Hand and Wrist

DTIC Science & Technology

2006-01-01

neuropathy . Arthritis is an example of a degenerative condition. Though exact symptoms vary by conditions and the individual, some are common to most...depending upon the part and the access area (J. Warsinske, personal communication, July, 6, 2006). 12 Air Force WMSD iniury data Two jet engine repair...facilities were responsible for receiving, inspecting, and repairing jet engines, tasks that are comparable to the duties of the aircraft maintainers

Working Memory Replay Prioritizes Weakly Attended Events.

PubMed

Jafarpour, Anna; Penny, Will; Barnes, Gareth; Knight, Robert T; Duzel, Emrah

2017-01-01

One view of working memory posits that maintaining a series of events requires their sequential and equal mnemonic replay. Another view is that the content of working memory maintenance is prioritized by attention. We decoded the dynamics for retaining a sequence of items using magnetoencephalography, wherein participants encoded sequences of three stimuli depicting a face, a manufactured object, or a natural item and maintained them in working memory for 5000 ms. Memory for sequence position and stimulus details were probed at the end of the maintenance period. Decoding of brain activity revealed that one of the three stimuli dominated maintenance independent of its sequence position or category; and memory was enhanced for the selectively replayed stimulus. Analysis of event-related responses during the encoding of the sequence showed that the selectively replayed stimuli were determined by the degree of attention at encoding. The selectively replayed stimuli had the weakest initial encoding indexed by weaker visual attention signals at encoding. These findings do not rule out sequential mnemonic replay but reveal that attention influences the content of working memory maintenance by prioritizing replay of weakly encoded events. We propose that the prioritization of weakly encoded stimuli protects them from interference during the maintenance period, whereas the more strongly encoded stimuli can be retrieved from long-term memory at the end of the delay period.

The impact of storage on processing: how is information maintained in working memory?

PubMed

Vergauwe, Evie; Camos, Valérie; Barrouillet, Pierre

2014-07-01

Working memory is typically defined as a system devoted to the simultaneous maintenance and processing of information. However, the interplay between these 2 functions is still a matter of debate in the literature, with views ranging from complete independence to complete dependence. The time-based resource-sharing model assumes that a central bottleneck constrains the 2 functions to alternate in such a way that maintenance activities postpone concurrent processing, with each additional piece of information to be maintained resulting in an additional postponement. Using different kinds of memoranda, we examined in a series of 7 experiments the effect of increasing memory load on different processing tasks. The results reveal that, insofar as attention is needed for maintenance, processing times linearly increase at a rate of about 50 ms per verbal or visuospatial memory item, suggesting a very fast refresh rate in working memory. Our results also show an asymmetry between verbal and spatial information, in that spatial information can solely rely on attention for its maintenance while verbal information can also rely on a domain-specific maintenance mechanism independent from attention. The implications for the functioning of working memory are discussed, with a specific focus on how information is maintained in working memory. PsycINFO Database Record (c) 2014 APA, all rights reserved.

Summary of Tiger Team Assessment and Technical Safety Appraisal recurring concerns in the Maintenance Area

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

1993-01-01

Tiger Team Assessments and Technical Safety Appraisals (TSA) were reviewed and evaluated for concerns in the Maintenance Area (MA). Two hundred and thirty one (231) maintenance concerns were identified by the Tiger Team Assessments and TSA reports. These recurring concerns appear below. A summary of the Noteworthy Practices that were identified and a compilation of the maintenance concerns for each performance objective that were not considered as recurring are also included. Where the Tiger Team Assessment and TSA identified the operating contractor or facility by name, the concern has been modified to remove the name while retaining the intent ofmore » the comment.« less

78 FR 7672 - Approval and Promulgation of Implementation Plans; Texas; Beaumont/Port Arthur Ozone Maintenance...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-04

.... SUMMARY: EPA is approving a revision to the Beaumont/Port Arthur (BPA) 1997 8-hour ozone maintenance air... emissions model. The BPA 1997 8-hour ozone maintenance area consists of Hardin, Jefferson, and Orange... proposed to approve a revision to the BPA 1997 8-hour ozone maintenance air quality SIP by replacing the...

Multi-Cultural Competency-Based Vocational Curricula. Maintenance Mechanics. Multi-Cultural Competency-Based Vocational/Technical Curricula Series.

ERIC Educational Resources Information Center

Hepburn, Larry; Shin, Masako

This document, one of eight in a multi-cultural competency-based vocational/technical curricula series, is on maintenance mechanics. This program is designed to run 40 weeks and cover 5 instructional areas: basic electricity (14 weeks); maintenance and repair of heating (4 weeks); maintenance and repair of air conditioning (12 weeks); maintenance…

Attention is required for maintenance of feature binding in visual working memory

PubMed Central

Heider, Maike; Husain, Masud

2013-01-01

Working memory and attention are intimately connected. However, understanding the relationship between the two is challenging. Currently, there is an important controversy about whether objects in working memory are maintained automatically or require resources that are also deployed for visual or auditory attention. Here we investigated the effects of loading attention resources on precision of visual working memory, specifically on correct maintenance of feature-bound objects, using a dual-task paradigm. Participants were presented with a memory array and were asked to remember either direction of motion of random dot kinematograms of different colour, or orientation of coloured bars. During the maintenance period, they performed a secondary visual or auditory task, with varying levels of load. Following a retention period, they adjusted a coloured probe to match either the motion direction or orientation of stimuli with the same colour in the memory array. This allowed us to examine the effects of an attention-demanding task performed during maintenance on precision of recall on the concurrent working memory task. Systematic increase in attention load during maintenance resulted in a significant decrease in overall working memory performance. Changes in overall performance were specifically accompanied by an increase in feature misbinding errors: erroneous reporting of nontarget motion or orientation. Thus in trials where attention resources were taxed, participants were more likely to respond with nontarget values rather than simply making random responses. Our findings suggest that resources used during attention-demanding visual or auditory tasks also contribute to maintaining feature-bound representations in visual working memory—but not necessarily other aspects of working memory. PMID:24266343

Attention is required for maintenance of feature binding in visual working memory.

PubMed

Zokaei, Nahid; Heider, Maike; Husain, Masud

2014-01-01

Working memory and attention are intimately connected. However, understanding the relationship between the two is challenging. Currently, there is an important controversy about whether objects in working memory are maintained automatically or require resources that are also deployed for visual or auditory attention. Here we investigated the effects of loading attention resources on precision of visual working memory, specifically on correct maintenance of feature-bound objects, using a dual-task paradigm. Participants were presented with a memory array and were asked to remember either direction of motion of random dot kinematograms of different colour, or orientation of coloured bars. During the maintenance period, they performed a secondary visual or auditory task, with varying levels of load. Following a retention period, they adjusted a coloured probe to match either the motion direction or orientation of stimuli with the same colour in the memory array. This allowed us to examine the effects of an attention-demanding task performed during maintenance on precision of recall on the concurrent working memory task. Systematic increase in attention load during maintenance resulted in a significant decrease in overall working memory performance. Changes in overall performance were specifically accompanied by an increase in feature misbinding errors: erroneous reporting of nontarget motion or orientation. Thus in trials where attention resources were taxed, participants were more likely to respond with nontarget values rather than simply making random responses. Our findings suggest that resources used during attention-demanding visual or auditory tasks also contribute to maintaining feature-bound representations in visual working memory-but not necessarily other aspects of working memory.

The Contributions of Cerebro-Cerebellar Circuitry to Executive Verbal Working Memory

PubMed Central

Marvel, Cherie L.; Desmond, John E.

2009-01-01

Contributions of cerebro-cerebellar function to executive verbal working memory were examined using event-related functional magnetic resonance imaging (fMRI) while 16 subjects completed two versions of the Sternberg task. In both versions subjects were presented with two or six target letters during the encoding phase, which were held in memory during the maintenance phase. A single probe letter was presented during the retrieval phase. In the “match condition”, subjects decided whether the probe matched the target letters. In the “executive condition”, subjects created a new probe by counting two alphabetical letters forward (e.g., f → h) and decided whether the new probe matched the target letters. Neural activity during the match and executive conditions was compared during each phase of the task. There were four main findings. First, cerebro-cerebellar activity increased as a function of executive load. Second, the dorsal cerebellar dentate co-activated with the supplementary motor area (SMA) during encoding. This likely represented the formation of an articulatory (motor) trajectory. Third, the ventral cerebellar dentate co-activated with anterior prefrontal regions BA 9/46 and the pre-SMA during retrieval. This likely represented the manipulation of information and formation of a response. A functional dissociation between the dorsal “motor” dentate and “cognitive” ventral dentate agrees with neuroanatomical tract tracing studies that have demonstrated separate neural pathways involving each region of the dentate: the dorsal dentate projects to frontal motor areas (including the SMA), and the ventral dentate projects to frontal cognitive areas (including BA 9/46 and the pre-SMA). Finally, activity during the maintenance phase in BA 9, anterior insula, pre-SMA and ventral dentate predicted subsequent accuracy of response to the probe during the retrieval phase. This finding underscored the significant contribution of the pre-SMA/ventral dentate pathway – observed several seconds prior to any motor response to the probe -- to executive verbal working memory. PMID:19811779

NIOSH testimony to DOL on the Occupational Safety And Health Administration's proposed rule on occupational exposure to asbestos, tremolite, anthophyllite, and actinolite by J. D. Millar, January 24, 1991

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

1991-01-24

The testimony contains the comments of NIOSH regarding the proposed rule on occupational exposure to asbestos (1332214), tremolite (14567738), anthophyllite (17068789) and actinolite (77536664) exposures. NIOSH supports OSHA in proposing changes to the existing asbestos standard to minimize the risk of asbestos related diseases in workers. The current standard is insufficient to protect the health of workers exposed to asbestos, and the proposed changes represent a prudent and necessary approach to accomplish this goal. Specific topics addressed in the testimony include exposure limits for asbestos; methods for sampling and analysis of airborne fibers; use of time weighted averages to measuremore » exposure; use of engineering controls, good work practices and personal protective equipment; use of engineering controls and work practices for brake and clutch repair and service; required use of specific work practices during maintenance of vinyl asbestos floor tile; housekeeping; definitions of small scale and short duration operations; exemption of roofing operations from the requirement for negative pressure enclosures; communication among employers and owners; regulated areas for asbestos removal, maintenance, demolition, and renovation operations; use of glove bags; definition of competent person; and notification to OSHA and method of notification.« less

Exploring Typical and Atypical Safety Climate Perceptions of Practitioners in the Repair, Maintenance, Minor Alteration and Addition (RMAA) Sector in Hong Kong.

PubMed

Hon, Carol K H; Liu, Yulin

2016-09-22

The safety of repair, maintenance, minor alteration and addition (RMAA) work is an under-explored area. This study explored the typical and atypical safety climate perceptions of practitioners in the RMAA sector in Hong Kong, based on a self-administered questionnaire survey of 662 local practitioners in the industry. Profile analysis, via multidimensional scaling of the respondents' scores of three safety climate scales, identified one typical perception: high in management commitment to occupational health and safety (OHS) and employee involvement, low in applicability for safety rules and regulations, and low in responsibility for OHS. The respondents were clustered into typical and atypical perception groups according to their safety climate scores' match to the typical perception. A comparison of demographics between the two groups with logistic regression found that work level and direct employer significantly affect their classification. A multivariate analysis of variance of safety performance measures between the two groups indicated that the typical group had a significantly higher level of safety compliance than the atypical group, with no significant difference in safety participation or injury. The significance of this study lies in revealing the typical safety climate perception profile pattern of RMAA works and offering a new perspective of safety climate research.

Exploring Typical and Atypical Safety Climate Perceptions of Practitioners in the Repair, Maintenance, Minor Alteration and Addition (RMAA) Sector in Hong Kong

PubMed Central

Hon, Carol K.H.; Liu, Yulin

2016-01-01

The safety of repair, maintenance, minor alteration and addition (RMAA) work is an under-explored area. This study explored the typical and atypical safety climate perceptions of practitioners in the RMAA sector in Hong Kong, based on a self-administered questionnaire survey of 662 local practitioners in the industry. Profile analysis, via multidimensional scaling of the respondents’ scores of three safety climate scales, identified one typical perception: high in management commitment to occupational health and safety (OHS) and employee involvement, low in applicability for safety rules and regulations, and low in responsibility for OHS. The respondents were clustered into typical and atypical perception groups according to their safety climate scores’ match to the typical perception. A comparison of demographics between the two groups with logistic regression found that work level and direct employer significantly affect their classification. A multivariate analysis of variance of safety performance measures between the two groups indicated that the typical group had a significantly higher level of safety compliance than the atypical group, with no significant difference in safety participation or injury. The significance of this study lies in revealing the typical safety climate perception profile pattern of RMAA works and offering a new perspective of safety climate research. PMID:27669269

Draft Site Management and Monitoring Plan for Corpus Christi Maintenance and New Work Ocean Dredged Material Disposal Site

EPA Pesticide Factsheets

USEPA Region 6 and the US Army Corps of Engineers submit for public comment the Draft Site Management and Monitoring Plan for Corpus Christi Maintenance and New Work Ocean Dredged Material Disposal Site

30 CFR 77.1004 - Ground control; inspection and maintenance; general.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Ground control; inspection and maintenance... OF UNDERGROUND COAL MINES Ground Control § 77.1004 Ground control; inspection and maintenance... unsafe ground conditions shall be corrected promptly, or the area shall be posted. ...

30 CFR 77.1004 - Ground control; inspection and maintenance; general.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Ground control; inspection and maintenance... OF UNDERGROUND COAL MINES Ground Control § 77.1004 Ground control; inspection and maintenance... unsafe ground conditions shall be corrected promptly, or the area shall be posted. ...

78 FR 63388 - Approval and Promulgation of Air Quality Implementation Plans; Ohio; Dayton-Springfield...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-10-24

...-2018) Point 2.06 2.28 2.70 Area 2.92 2.81 2.90 Onroad 4.88 4.15 1.93 Nonroad 1.17 0.96 0.77 Total 11.03...* Interim Maintenance reduction (2004-2018) Point 1.15 1.25 1.26 Area 3.06 2.91 2.91 Onroad 5.62 4.83 2.14...-Springfield area's ozone maintenance plan established 2005 and 2018 budgets. The Toledo area and the Ohio...

Small wastewater treatment plants in mountain areas: combination of septic tank and biological filter.

PubMed

Maunoir, S; Philip, H; Rambaud, A

2007-01-01

Research work has been carried out for more than 20 years by Eparco and the University of Montpellier (France) on the application of biological wastewater treatment processes for small communities. This research has led to a new process which is particularly suitable for remote populations, taking into account several specificities such as as the seasonal fluctuations in the population, the accessibility of the site, the absence of a power supply on site, the reduced area of land available and the low maintenance. Thus, the process, which combines a septic tank operating under anaerobic conditions and a biological aerobic filter, is a solution for wastewater treatment in mountain areas. This paper presents the process and three full-scale applications in the region of the Alps.

Ability to join the workforce and work productivity among drug users under methadone maintenance treatment in a mountainous area of Northern Vietnam: a cross-sectional study.

PubMed

Nong, Vuong Minh; Boggiano, Victoria L; Nguyen, Lan Huong Thi; Nguyen, Cuong Tat; Nguyen, Long Hoang; Xuan Bach, Tran; Nguyen, Hung Van; Hoang, Canh Dinh; Latkin, Carl A; Vu, Minh Thuc Thi

2017-07-26

A major measure of treatment success for drug users undergoing rehabilitation is the ability to enter the workforce and generate income. This study examines the absenteeism and productivity among people who inject drugs (PWID) enrolled in methadone maintenance treatment (MMT) in Northern Vietnam. We conducted a cross-sectional study in two clinics in Tuyen Quang province. A total of 241 patients enrolled in MMT. Patients' work productivity was measured using the WPAI-GH instrument (Work Productivity and Activity Impairment Questionnaire: General Health V2.0). We also collected additional characteristics about participants' employment history, such as proficient jobs, whether they actively found a new job and be accepted by employers. Most of the participants (>90%) were employed at the time of the study. Rates of absenteeism (missed work), presenteeism (impairment while working) and overall loss of productivity were 15.8%, 5.6% and 11.2%, respectively, as measured by the WPAI-GH questionnaire. The most proficient job was 'freelancer' (17.5%), followed by 'blue-collar worker' (10.6%) and 'farmer' (10.2%). Only 26.8% of patients reported that they actively sought jobs in the past. About half of them had been refused by employers because of their drug use history and/or HIV status. We found no statistically significant difference between patients enrolled in MMT for <1 year and those who had been enrolled >1 year. Factors associated with higher work productivity included not endorsing problems in mobility, self-care or pain; being HIV-negative and having greater MMT treatment adherence. Our study highlights the high employment rate and work productivity among PWID in MMT programmes in remote areas of Northern Vietnam. The results can help to improve the quality and structure of MMT programmes across Vietnam and in other countries. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

77 FR 69409 - Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-11-19

...-road motor vehicle insignificance finding that is included as part of Kentucky's maintenance plan for... Plan (SIP) revision containing a maintenance plan for the Kentucky portion of the Huntington-Ashland...-Ashland Area. EPA is also proposing to approve the on-road motor vehicle insignificance finding for direct...

75 FR 1543 - Approval and Promulgation of Implementation Plans; Puerto Rico; Guaynabo PM10

Federal Register 2010, 2011, 2012, 2013, 2014

2010-01-12

...] Approval and Promulgation of Implementation Plans; Puerto Rico; Guaynabo PM 10 Limited Maintenance Plan and... approving the Limited Maintenance Plan for the Municipality of Guaynabo nonattainment area in Puerto Rico and the request by the Commonwealth of Puerto Rico to redesignate the area from nonattainment to...

14 CFR 1203a.102 - Establishment, maintenance, and revocation of security areas.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 14 Aeronautics and Space 5 2010-01-01 2010-01-01 false Establishment, maintenance, and revocation of security areas. 1203a.102 Section 1203a.102 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE... persons either to: (i) Obtain knowledge of classified information, (ii) Damage or remove property, or to...

14 CFR 1203a.102 - Establishment, maintenance, and revocation of security areas.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 14 Aeronautics and Space 5 2011-01-01 2010-01-01 true Establishment, maintenance, and revocation of security areas. 1203a.102 Section 1203a.102 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE... persons either to: (i) Obtain knowledge of classified information, (ii) Damage or remove property, or to...

76 FR 79539 - Approval and Promulgation of Air Quality Implementation Plans; West Virginia; Revised Motor...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-12-22

... ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [FDMS Docket No. EPA-R03-OAR-2011-0511; FRL-9609-1... Maintenance Areas; Correction AGENCY: Environmental Protection Agency (EPA). ACTION: Direct final rule..., Parkersburg, Weirton, and Wheeling 8-hour ozone maintenance areas. The previous rulemaking amended the...

119. ARAI Shop and maintenance (ARA627) building sections and details ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

119. ARA-I Shop and maintenance (ARA-627) building sections and details of interior mesh partitions. Norman Engineering Company 961-area/SF-627-A-3. Date: January 1959. Ineel index code no. 068-0627-00-613-102761. - Idaho National Engineering Laboratory, Army Reactors Experimental Area, Scoville, Butte County, ID

117. ARAI Shop and maintenance (ARA627) building roof and floor ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

117. ARA-I Shop and maintenance (ARA-627) building roof and floor plan. Includes room finish and equipment schedule. Norman Engineering Company 961-area/SF-627-A-1. Date: January 1959. Ineel index code no. 068-0627-00-613-102759. - Idaho National Engineering Laboratory, Army Reactors Experimental Area, Scoville, Butte County, ID

78 FR 4341 - Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-01-22

... Alabama Department of Environmental Management (ADEM), Air Division, to redesignate the Birmingham fine... implementation plan (SIP) to include the 1997 Annual PM 2.5 maintenance plan for the Birmingham Area that... action also approves the 2009 emissions inventory submitted with the maintenance plan. DATES: Effective...

78 FR 5306 - Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-01-25

... the Alabama Department of Environmental Management (ADEM), Air Division, to redesignate the Birmingham... implementation plan (SIP) to include the 2006 24-hour PM 2.5 maintenance plan for the Birmingham Area that... action also approves the 2009 emissions inventory submitted with the maintenance plan. DATES: Effective...

Testing of alternative supporting materials for portable roll-up signs used for maintenance work zones : [summary].

DOT National Transportation Integrated Search

2013-08-01

Portable roll-up signs are currently used by the Texas Department of Transportation for identification of short-term maintenance/work zones and emergency operations. These signs have fiberglass frames that directly support diamond-shaped and rectangu...

A cross-sectional study of hearing thresholds among 4627 Norwegian train and track maintenance workers

PubMed Central

Lie, Arve; Skogstad, Marit; Johnsen, Torstein Seip; Engdahl, Bo; Tambs, Kristian

2014-01-01

Objective Railway workers performing maintenance work of trains and tracks could be at risk of developing noise-induced hearing loss, since they are exposed to noise levels of 75–90 dB(A) with peak exposures of 130–140 dB(C). The objective was to make a risk assessment by comparing the hearing thresholds among train and track maintenance workers with a reference group not exposed to noise and reference values from the ISO 1999. Design Cross-sectional. Setting A major Norwegian railway company. Participants 1897 and 2730 male train and track maintenance workers, respectively, all exposed to noise, and 2872 male railway traffic controllers and office workers not exposed to noise. Outcome measures The primary outcome was the hearing threshold (pure tone audiometry, frequencies from 0.5 to 8 kHz), and the secondary outcome was the prevalence of audiometric notches (Coles notch) of the most recent audiogram. Results Train and track maintenance workers aged 45 years or older had a small mean hearing loss in the 3–6 kHz area of 3–5 dB. The hearing loss was less among workers younger than 45 years. Audiometric notches were slightly more prevalent among the noise exposed (59–64%) group compared with controls (49%) for all age groups. They may therefore be a sensitive measure in disclosing an early hearing loss at a group level. Conclusions Train and track maintenance workers aged 45 years or older, on average, have a slightly greater hearing loss and more audiometric notches compared with reference groups not exposed to noise. Younger (<45 years) workers have hearing thresholds comparable to the controls. PMID:25324318

Extensions and improvements on XTRAN3S

NASA Technical Reports Server (NTRS)

Borland, C. J.

1989-01-01

Improvements to the XTRAN3S computer program are summarized. Work on this code, for steady and unsteady aerodynamic and aeroelastic analysis in the transonic flow regime has concentrated on the following areas: (1) Maintenance of the XTRAN3S code, including correction of errors, enhancement of operational capability, and installation on the Cray X-MP system; (2) Extension of the vectorization concepts in XTRAN3S to include additional areas of the code for improved execution speed; (3) Modification of the XTRAN3S algorithm for improved numerical stability for swept, tapered wing cases and improved computational efficiency; and (4) Extension of the wing-only version of XTRAN3S to include pylon and nacelle or external store capability.

Managing Highway Maintenance: Standards for Maintenance Work, Part 2, Unit 8, Level 2.

ERIC Educational Resources Information Center

Federal Highway Administration (DOT), Washington, DC. Offices of Research and Development.

Part of the series "Managing Highway Maintenance," the unit describes the ways maintenance standards are developed and some of the factors which are considered in setting standards; the preceding unit on standards (part 1) should be completed before reading this unit. The format is a programed, self-instruction approach in which…

Maintenance of Mechanical Services. Maintenance and Renewal in Educational Buildings. Building Bulletin 70.

ERIC Educational Resources Information Center

Haworth-Roberts, A., Ed.

School building maintenance must find an appropriate balance between planned and reactive work in order to conserve costs. This document provides ways in which authorities can assess their maintenance requirements and make better use of the resources available. It considers how to deal with problems which have their roots in historical design…

Developmental Differences in the Influence of Distractors on Maintenance in Spatial Working Memory

ERIC Educational Resources Information Center

Schutte, Anne R.; Keiser, Brian A.; Beattie, Heidi L.

2017-01-01

This study examined whether attention to a location plays a role in the maintenance of locations in spatial working memory in young children as it does in adults. This study was the first to investigate whether distractors presented during the delay of a spatial working-memory task influenced young children's memory responses. Across 2…

Fatigue risk management in aviation maintenance : current best practices and potential future countermeasures.

DOT National Transportation Integrated Search

2011-06-01

The unregulated hours and frequent night work characteristic of maintenance can produce significant levels of : employee fatigue, with a resultant risk of maintenance error. Fatigue Risk Management Systems (FRMS) are : widely used to manage fatigue a...

Space architecture monograph series. Volume 4: Genesis 2: Advanced lunar outpost

NASA Technical Reports Server (NTRS)

Fieber, Joseph P.; Huebner-Moths, Janis; Paruleski, Kerry L.; Moore, Gary T. (Editor)

1991-01-01

This research and design study investigated advanced lunar habitats for astronauts and mission specialists on the Earth's moon. Design recommendations are based on environmental response to the lunar environment, human habitability (human factors and environmental behavior research), transportability (structural and materials system with least mass), constructability (minimizing extravehicular time), construction dependability and resilience, and suitability for NASA launch research missions in the 21st century. The recommended design uses lunar lava tubes, with construction being a combination of Space Station Freedom derived hard modules and light weight Kevlar laminate inflatable structures. The proposed habitat includes research labs and a biotron, crew quarters and crew support facility, mission control, health maintenance facility, maintenance work areas for psychological retreat, privacy, and comtemplation. Furniture, specialized equipment, and lighting are included in the analysis and design. Drawings include base master plans, construction sequencing, overall architectural configuration, detailed floor plans, sections and axonometrics, with interior perspectives.

Abstraction of complex concepts with a refined partial-area taxonomy of SNOMED

PubMed Central

Wang, Yue; Halper, Michael; Wei, Duo; Perl, Yehoshua; Geller, James

2012-01-01

An algorithmically-derived abstraction network, called the partial-area taxonomy, for a SNOMED hierarchy has led to the identification of concepts considered complex. The designation “complex” is arrived at automatically on the basis of structural analyses of overlap among the constituent concept groups of the partial-area taxonomy. Such complex concepts, called overlapping concepts, constitute a tangled portion of a hierarchy and can be obstacles to users trying to gain an understanding of the hierarchy’s content. A new methodology for partitioning the entire collection of overlapping concepts into singly-rooted groups, that are more manageable to work with and comprehend, is presented. Different kinds of overlapping concepts with varying degrees of complexity are identified. This leads to an abstract model of the overlapping concepts called the disjoint partial-area taxonomy, which serves as a vehicle for enhanced, high-level display. The methodology is demonstrated with an application to SNOMED’s Specimen hierarchy. Overall, the resulting disjoint partial-area taxonomy offers a refined view of the hierarchy’s structural organization and conceptual content that can aid users, such as maintenance personnel, working with SNOMED. The utility of the disjoint partial-area taxonomy as the basis for a SNOMED auditing regimen is presented in a companion paper. PMID:21878396

36 CFR 294.23 - Road construction and reconstruction in Idaho Roadless Areas.

Code of Federal Regulations, 2010 CFR

2010-07-01

... be mitigated by road maintenance. Road realignment may occur under this subsection only if the road.... (e) Road maintenance. Maintenance of temporary and forest roads is permissible in Idaho Roadless... 36 Parks, Forests, and Public Property 2 2010-07-01 2010-07-01 false Road construction and...

40 CFR 52.2043 - Control strategy for maintenance plans: ozone.

Code of Federal Regulations, 2014 CFR

2014-07-01

...: ozone. 52.2043 Section 52.2043 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... Control strategy for maintenance plans: ozone. (a) As of December 26, 2013, EPA approves the following... (VOCs) for the Lancaster 1997 8-Hour Ozone Maintenance Area submitted by the Secretary of the...

Industrial Machinery Maintenance and Repair. Florida Vocational Program Guide.

ERIC Educational Resources Information Center

University of South Florida, Tampa. Dept. of Adult and Vocational Education.

This vocational program guide is intended to assist in the organization, operation, and evaluation of a program in industrial machinery maintenance and repair in school districts, area vocational centers, and community colleges. The following topics are covered: job duties of millwrights, maintenance mechanics, and machinery erectors; program…

Multiple Learning Strategies Project. Building Maintenance & Engineering. Regular Vocational. [Vol. 2.

ERIC Educational Resources Information Center

Smith, Dwight; And Others

This instructional package is one of two designed for regular vocational students in the vocational area of building maintenance and engineering. The fifty-three learning modules are organized into ten units: office cleaning; grounds; sanitation; boiler maintenance and operation; power and hand tools; cabinet construction; repair of damaged…

Barriers and Bridges: Understanding Factors Affecting Health Maintenance.

ERIC Educational Resources Information Center

Dolan, Regina

1981-01-01

Among areas covered in a health maintenance survey are: (1) health maintenance and preventive medicine; (2) unhealthy lifestyles; (3) knowledge level; (4) obesity; (5) exercise; (6) nutrition; (7) mental health; (8) smoking; (9) drinking; (10) the role of the physician; and (11) the changing role of the employer. (JN)

Working Memory Replay Prioritizes Weakly Attended Events

PubMed Central

Penny, Will; Knight, Robert T.; Duzel, Emrah

2017-01-01

Abstract One view of working memory posits that maintaining a series of events requires their sequential and equal mnemonic replay. Another view is that the content of working memory maintenance is prioritized by attention. We decoded the dynamics for retaining a sequence of items using magnetoencephalography, wherein participants encoded sequences of three stimuli depicting a face, a manufactured object, or a natural item and maintained them in working memory for 5000 ms. Memory for sequence position and stimulus details were probed at the end of the maintenance period. Decoding of brain activity revealed that one of the three stimuli dominated maintenance independent of its sequence position or category; and memory was enhanced for the selectively replayed stimulus. Analysis of event-related responses during the encoding of the sequence showed that the selectively replayed stimuli were determined by the degree of attention at encoding. The selectively replayed stimuli had the weakest initial encoding indexed by weaker visual attention signals at encoding. These findings do not rule out sequential mnemonic replay but reveal that attention influences the content of working memory maintenance by prioritizing replay of weakly encoded events. We propose that the prioritization of weakly encoded stimuli protects them from interference during the maintenance period, whereas the more strongly encoded stimuli can be retrieved from long-term memory at the end of the delay period. PMID:28824955

Respiratory health effects associated with restoration work in post-Hurricane Katrina New Orleans.

PubMed

Rando, Roy J; Lefante, John J; Freyder, Laurie M; Jones, Robert N

2012-01-01

This study examines prevalence of respiratory conditions in New Orleans-area restoration workers after Hurricane Katrina. Between 2007 and 2010, spirometry and respiratory health and occupational questionnaire were administered to 791 New Orleans-area adults who mostly worked in the building construction and maintenance trades or custodial services. The associations between restoration work hours and lung function and prevalence of respiratory symptoms were examined by multiple linear regression, χ², or multiple logistic regression. 74% of participants performed post-Katrina restoration work (median time: 620 hours). Symptoms reported include episodes of transient fever/cough (29%), sinus symptoms (48%), pneumonia (3.7%), and new onset asthma (4.5%). Prevalence rate ratios for post-Katrina sinus symptoms (PRR = 1.3; CI: 1.1, 1.7) and fever and cough (PRR = 1.7; CI: 1.3, 2.4) were significantly elevated overall for those who did restoration work and prevalence increased with restoration work hours. Prevalence rate ratios with restoration work were also elevated for new onset asthma (PRR = 2.2; CI: 0.8, 6.2) and pneumonia (PRR = 1.3; CI: 0.5, 3.2) but were not statistically significant. Overall, lung function was slightly depressed but was not significantly different between those with and without restoration work exposure. Post-Katrina restoration work is associated with moderate adverse effects on respiratory health, including sinusitis and toxic pneumonitis.

Working memory maintenance is sufficient to reduce state anxiety.

PubMed

Balderston, Nicholas L; Quispe-Escudero, David; Hale, Elizabeth; Davis, Andrew; O'Connell, Katherine; Ernst, Monique; Grillon, Christian

2016-11-01

According to the attentional control theory (ACT) proposed by Eysenck and colleagues, anxiety interferes with cognitive processing by prioritizing bottom-up attentional processes over top-down attentional processes, leading to competition for access to limited resources in working memory, particularly the central executive (Eysenck, Derakshan, Santos, & Calvo, ). However, previous research using the n-back working memory task suggests that working memory load also reduces state anxiety. Assuming that similar mechanisms underlie the effect of anxiety on cognition, and the effect of cognition on anxiety, one possible implication of the ACT would suggest that the reduction of state anxiety with increasing working memory load is driven by activation of central executive attentional control processes. We tested this hypothesis using the Sternberg working memory paradigm, where maintenance processes can be isolated from central executive processes (Altamura et al., ; Sternberg, ). Consistent with the n-back results, subjects showed decreased state anxiety during the maintenance period of high-load trials relative to low-load trials, suggesting that maintenance processes alone are sufficient to achieve this state anxiety reduction. Given that the Sternberg task does not require central executive engagement, these results are not consistent with an implication of the ACT where the cognition/anxiety relationship and anxiety/cognition relationship are mediated by similar central executive mechanisms. Instead, we propose an extension of the ACT such that engaging working memory maintenance suppresses state anxiety in a load-dependent manner. Furthermore, we hypothesize that the efficacy of this effect may moderate the effect of trait anxiety on cognition. Published 2016. This article is a U.S. Government work and is in the public domain in the USA.

14 CFR 145.3 - Definition of terms.

Code of Federal Regulations, 2011 CFR

2011-01-01

... maintenance resulting from unforeseen events; or (2) Scheduled checks that contain servicing and/or... regulations and serving as the primary contact with the FAA. (b) Article means an aircraft, airframe, aircraft... for the work of a certificated repair station that performs maintenance, preventive maintenance...

14 CFR 145.3 - Definition of terms.

Code of Federal Regulations, 2013 CFR

2013-01-01

... maintenance resulting from unforeseen events; or (2) Scheduled checks that contain servicing and/or... regulations and serving as the primary contact with the FAA. (b) Article means an aircraft, airframe, aircraft... for the work of a certificated repair station that performs maintenance, preventive maintenance...

14 CFR 145.3 - Definition of terms.

Code of Federal Regulations, 2012 CFR

2012-01-01

... maintenance resulting from unforeseen events; or (2) Scheduled checks that contain servicing and/or... regulations and serving as the primary contact with the FAA. (b) Article means an aircraft, airframe, aircraft... for the work of a certificated repair station that performs maintenance, preventive maintenance...

14 CFR 145.3 - Definition of terms.

Code of Federal Regulations, 2014 CFR

2014-01-01

... maintenance resulting from unforeseen events; or (2) Scheduled checks that contain servicing and/or... regulations and serving as the primary contact with the FAA. (b) Article means an aircraft, airframe, aircraft... for the work of a certificated repair station that performs maintenance, preventive maintenance...

14 CFR 145.3 - Definition of terms.

Code of Federal Regulations, 2010 CFR

2010-01-01

... maintenance resulting from unforeseen events; or (2) Scheduled checks that contain servicing and/or... regulations and serving as the primary contact with the FAA. (b) Article means an aircraft, airframe, aircraft... for the work of a certificated repair station that performs maintenance, preventive maintenance...

49 CFR 214.341 - Roadway maintenance machines.

Code of Federal Regulations, 2010 CFR

2010-10-01

... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION RAILROAD WORKPLACE SAFETY Roadway Worker Protection § 214.341 Roadway maintenance machines. (a) Each employer shall include in its on-track safety program specific provisions for the safety of roadway workers who operate or work near roadway maintenance machines. Those...

76 FR 20853 - Approval and Promulgation of Air Quality Implementation Plans; Kentucky; Approval of Section 110...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-04-14

... NAAQS through the year 2020 for the Four Kentucky Areas. These maintenance plans meet applicable... period of 10 years after redesignation, consistent with the CAA section 175A(a). EPA approved Kentucky's... attainment areas) were required to submit 10-year maintenance plans pursuant to section 110(a)(1) of the CAA...

Annual Report for Los Alamos National Laboratory Technical Area 54, Area G Disposal Facility - Fiscal Year 2016

DOE Office of Scientific and Technical Information (OSTI.GOV)

Birdsell, Kay Hanson; Stauffer, Philip H.; Atchley, Adam Lee

As a condition to the disposal authorization statement issued to Los Alamos National Laboratory (LANL or the Laboratory) on March 17, 2010, a comprehensive performance assessment and composite analysis (PA/CA) maintenance program must be implemented for the Technical Area 54, Area G disposal facility. Annual determinations of the adequacy of the PA/CA are to be conducted under the maintenance program to ensure that the conclusions reached by those analyses continue to be valid. This report summarizes the results of the fiscal year (FY) 2016 annual review for Area G.

Neonatal Perirhinal Lesions in Rhesus Macaques Alter Performance on Working Memory Tasks with High Proactive Interference.

PubMed

Weiss, Alison R; Nadji, Ryhan; Bachevalier, Jocelyne

2015-01-01

The lateral prefrontal cortex is known for its contribution to working memory (WM) processes in both humans and animals. Yet, recent studies indicate that the prefrontal cortex is part of a broader network of interconnected brain areas involved in WM. Within the medial temporal lobe (MTL) structures, the perirhinal cortex, which has extensive direct interactions with the lateral and orbital prefrontal cortex, is required to form active/flexible representations of familiar objects. However, its participation in WM processes has not be fully explored. The goal of this study was to assess the effects of neonatal perirhinal lesions on maintenance and monitoring WM processes. As adults, animals with neonatal perirhinal lesions and their matched controls were tested in three object-based (non-spatial) WM tasks that tapped different WM processing domains, e.g., maintenance only (Session-unique Delayed-nonmatching-to Sample, SU-DNMS), and maintenance and monitoring (Object-Self-Order, OBJ-SO; Serial Order Memory Task, SOMT). Neonatal perirhinal lesions transiently impaired the acquisition of SU-DNMS at a short (5 s) delay, but not when re-tested with a longer delay (30 s). The same neonatal lesions severely impacted acquisition of OBJ-SO task, and the impairment was characterized by a sharp increase in perseverative errors. By contrast, neonatal perirhinal lesion spared the ability to monitor the temporal order of items in WM as measured by the SOMT. Contrary to the SU-DNMS and OBJ-SO, which re-use the same stimuli across trials and thus produce proactive interference, the SOMT uses novel objects on each trial and is devoid of interference. Therefore, the impairment of monkeys with neonatal perirhinal lesions on SU-DNMS and OBJ-SO tasks is likely to be caused by an inability to solve working memory tasks with high proactive interference. The sparing of performance on the SOMT demonstrates that neonatal perirhinal lesions do not alter working memory processes per se but rather impact processes modulating impulse control and/or behavioral flexibility.

77 FR 76415 - Approval and Promulgation of Air Quality Implementation Plans; West Virginia; Redesignation of...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-12-28

...EPA is approving a redesignation request and State Implementation Plan (SIP) revision submitted by the State of West Virginia. The West Virginia Department of Environmental Protection (WVDEP) requested that the West Virginia portion of the Huntington- Ashland, WV-KY-OH fine particulate matter (PM2.5) nonattainment area (``Huntington-Ashland Area'' or ``Area'') be redesignated as attainment for the 1997 annual PM2.5 national ambient air quality standard (NAAQS). In this rulemaking action, EPA is approving the 1997 annual PM2.5 redesignation request for the West Virginia portion of the Area. EPA is also approving the maintenance plan SIP revision that the State submitted in conjunction with its redesignation request. The maintenance plan provides for continued attainment of the 1997 annual PM2.5 NAAQS for 10 years after redesignation of the West Virginia portion of the Area. The maintenance plan includes an insignificance determination for the onroad motor vehicle contribution of PM2.5, nitrogen oxides (NOX), and sulfur dioxide (SO2) for the West Virginia portion of the Area for purposes of transportation conformity. EPA is approving West Virginia's insignificance determination for transportation conformity. EPA is also finding that the Area continues to attain the standard. This rulemaking action approving the 1997 annual PM2.5 NAAQS redesignation request, maintenance plan, and insignificance determination for transportation conformity for the West Virginia portion of the Area is based on EPA's determination that the Area has met the criteria for redesignation to attainment specified in the Clean Air Act (CAA).

Evaluation of knowledge transfer in an immersive virtual learning environment for the transportation community : research project capsule.

DOT National Transportation Integrated Search

2010-01-01

In 2008 alone, 720 individuals were killed in a : construction or maintenance work zone in the : United States. However, since 2003, the total : number of individuals killed in a construction or : maintenance work zone in the US reached a : staggerin...

Boosting Maintenance in Working Memory with Temporal Regularities

ERIC Educational Resources Information Center

Plancher, Gaën; Lévêque, Yohana; Fanuel, Lison; Piquandet, Gaëlle; Tillmann, Barbara

2018-01-01

Music cognition research has provided evidence for the benefit of temporally regular structures guiding attention over time. The present study investigated whether maintenance in working memory can benefit from an isochronous rhythm. Participants were asked to remember series of 6 letters for serial recall. In the rhythm condition of Experiment…

18 CFR 12.12 - Maintenance of records.

Code of Federal Regulations, 2010 CFR

2010-04-01

..., DEPARTMENT OF ENERGY REGULATIONS UNDER THE FEDERAL POWER ACT SAFETY OF WATER POWER PROJECTS AND PROJECT WORKS Reports and Records § 12.12 Maintenance of records. (a) Kinds of records—1) General rule. Except as... project works; and (B) Any reports of project modifications, conditions affecting the safety of the...

Two Maintenance Mechanisms of Verbal Information in Working Memory

ERIC Educational Resources Information Center

Camos, V.; Lagner, P.; Barrouillet, P.

2009-01-01

The present study evaluated the interplay between two mechanisms of maintenance of verbal information in working memory, namely articulatory rehearsal as described in Baddeley's model, and attentional refreshing as postulated in Barrouillet and Camos's Time-Based Resource-Sharing (TBRS) model. In four experiments using complex span paradigm, we…

40 CFR 63.1451 - How do I demonstrate initial compliance with the emission limitations, work practice standards...

Code of Federal Regulations, 2013 CFR

2013-07-01

... written operation and maintenance plan required under § 63.1447(b) detailed descriptions of the procedures... with the emission limitations, work practice standards, and operation and maintenance requirements that... (CONTINUED) AIR PROGRAMS (CONTINUED) NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE...

40 CFR 63.1451 - How do I demonstrate initial compliance with the emission limitations, work practice standards...

Code of Federal Regulations, 2011 CFR

2011-07-01

... written operation and maintenance plan required under § 63.1447(b) detailed descriptions of the procedures... with the emission limitations, work practice standards, and operation and maintenance requirements that... (CONTINUED) AIR PROGRAMS (CONTINUED) NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE...

40 CFR 63.1451 - How do I demonstrate initial compliance with the emission limitations, work practice standards...

Code of Federal Regulations, 2010 CFR

2010-07-01

... written operation and maintenance plan required under § 63.1447(b) detailed descriptions of the procedures... with the emission limitations, work practice standards, and operation and maintenance requirements that... (CONTINUED) AIR PROGRAMS (CONTINUED) NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE...

40 CFR 63.1451 - How do I demonstrate initial compliance with the emission limitations, work practice standards...

Code of Federal Regulations, 2012 CFR

2012-07-01

... written operation and maintenance plan required under § 63.1447(b) detailed descriptions of the procedures... compliance with the emission limitations, work practice standards, and operation and maintenance requirements... (CONTINUED) AIR PROGRAMS (CONTINUED) NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE...

40 CFR 63.1451 - How do I demonstrate initial compliance with the emission limitations, work practice standards...

Code of Federal Regulations, 2014 CFR

2014-07-01

... written operation and maintenance plan required under § 63.1447(b) detailed descriptions of the procedures... compliance with the emission limitations, work practice standards, and operation and maintenance requirements... (CONTINUED) AIR PROGRAMS (CONTINUED) NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE...

43 CFR 418.29 - Project management.

Code of Federal Regulations, 2011 CFR

2011-10-01

... determination by the Bureau, the Bureau may take over from the District the care, operation, maintenance, and management of the diversion and outlet works (Derby Dam and Lahontan Dam/Reservoir) or any or all of the.... Following written notification from the Bureau, the care, operation, and maintenance of the works may be...

Internal medicine board certification and career pathways in Japan.

PubMed

Koike, Soichi; Matsumoto, Masatoshi; Ide, Hiroo; Kawaguchi, Hideaki; Shimpo, Masahisa; Yasunaga, Hideo

2017-05-08

Establishing and managing a board certification system is a common concern for many countries. In Japan, the board certification system is under revision. The purpose of this study was to describe present status of internal medicine specialist board certification, to identify factors associated with maintenance of board certification and to investigate changes in area of practice when physicians move from hospital to clinic practice. We analyzed 2010 and 2012 data from the Survey of Physicians, Dentists and Pharmacists. We conducted logistic regression analysis to identify factors associated with the maintenance of board certification between 2010 and 2012. We also analyzed data on career transition from hospitals to clinics for hospital physicians with board certification. It was common for physicians seeking board certification to do so in their early career. The odds of maintaining board certification were lower in women and those working in locations other than academic hospitals, and higher in physicians with subspecialty practice areas. Among hospital physicians with board certification who moved to clinics between 2010 and 2012, 95.8% remained in internal medicine or its subspecialty areas and 87.7% maintained board certification but changed their practice from a subspecialty area to more general internal medicine. Revisions of the internal medicine board certification system must consider different physician career pathways including mid-career moves while maintaining certification quality. This will help to secure an adequate number and distribution of specialists. To meet the increasing demand for generalist physicians, it is important to design programs to train specialists in general practice.

Solving complex maintenance planning optimization problems using stochastic simulation and multi-criteria fuzzy decision making

DOE Office of Scientific and Technical Information (OSTI.GOV)

Tahvili, Sahar; Österberg, Jonas; Silvestrov, Sergei

One of the most important factors in the operations of many cooperations today is to maximize profit and one important tool to that effect is the optimization of maintenance activities. Maintenance activities is at the largest level divided into two major areas, corrective maintenance (CM) and preventive maintenance (PM). When optimizing maintenance activities, by a maintenance plan or policy, we seek to find the best activities to perform at each point in time, be it PM or CM. We explore the use of stochastic simulation, genetic algorithms and other tools for solving complex maintenance planning optimization problems in terms ofmore » a suggested framework model based on discrete event simulation.« less

Pothole Detection System Using a Black-box Camera.

PubMed

Jo, Youngtae; Ryu, Seungki

2015-11-19

Aging roads and poor road-maintenance systems result a large number of potholes, whose numbers increase over time. Potholes jeopardize road safety and transportation efficiency. Moreover, they are often a contributing factor to car accidents. To address the problems associated with potholes, the locations and size of potholes must be determined quickly. Sophisticated road-maintenance strategies can be developed using a pothole database, which requires a specific pothole-detection system that can collect pothole information at low cost and over a wide area. However, pothole repair has long relied on manual detection efforts. Recent automatic detection systems, such as those based on vibrations or laser scanning, are insufficient to detect potholes correctly and inexpensively owing to the unstable detection of vibration-based methods and high costs of laser scanning-based methods. Thus, in this paper, we introduce a new pothole-detection system using a commercial black-box camera. The proposed system detects potholes over a wide area and at low cost. We have developed a novel pothole-detection algorithm specifically designed to work with the embedded computing environments of black-box cameras. Experimental results are presented with our proposed system, showing that potholes can be detected accurately in real-time.

Final expanded site inspection, ammunition storage area, Anniston Army Depot, Anniston, Alabama. Final report, September 1992-November 1994

DOE Office of Scientific and Technical Information (OSTI.GOV)

Suomela, K.D.; Highsmith, R.L.; Rapuano, K.F.

1994-11-15

An Expanded Site Inspection (ESI) was conducted at the Anniston Army Depot (ANAD) Ammunition Storage Area (ASA). The objective of this ESI was to gather the information and data necessary to determine whether there is sufficient evidence of any release of contamination that would require additional investigation. The ASA contains 1,300 ammunition storage magazines and an ammunition maintenance workshop complex which includes buildings for maintenance, demilitarization, and inspection of all types of ammunition and their components. Fifteen Solid Waste Management Units (SWMUs) were the focus of the ESI, of which 11 were recommend for further investigation. The work included amore » review of historical records, field investigations, laboratory analyses, data interpretation, and report preparation. Contamination from volatile organic compounds and semi volatile organic compounds is not a major problem at the ASA. Arsenic, beryllium, cadmium, chromium, lead, mercury, nickel, silver, vanadium, zinc, explosives, and total petroleum hydrocarbons were detected above control screening values levels in one or more of the media sampled. Nitrate/nitrite and total organic carbon were also detected above control screening values in samples of groundwater, soil, and sediment from a number of SWMUs.« less

Underwater Facilities Inspection and Assessment at Deperming Facility U.S. Naval Station Norfolk, Virginia.

DTIC Science & Technology

1981-07-01

of cross-sectional area as a result of one or more of the following destructive agents: mechanical impact and/or abrasion, excessive drilling of...sectional area and should not require maintenance at this time. Several timber braces throughout the inspected structures were also noted to have sustained...damage. The results of this sample inspection indicate that a reduction in the loading capacity has occurred in certain localized areas . Maintenance of

14 CFR 91.1433 - CAMP: Maintenance and preventive maintenance training program.

Code of Federal Regulations, 2010 CFR

2010-01-01

..., DEPARTMENT OF TRANSPORTATION (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES GENERAL OPERATING AND FLIGHT RULES Fractional Ownership Operations Program Management § 91.1433 CAMP: Maintenance and preventive... each person (including inspection personnel) who determines the adequacy of work done is fully informed...

Fixing Maintenance Productivity.

ERIC Educational Resources Information Center

Fickes, Michael

2003-01-01

Describes how one university's facility managers use Nextel communications technology in conjunction with a Famis Software maintenance management system to improve the productivity of its maintenance technicians. The system uses a wireless Internet connection to automate the flow of work order information to and from technicians. The key to these…

Short-term retention of visual information: Evidence in support of feature-based attention as an underlying mechanism.

PubMed

Sneve, Markus H; Sreenivasan, Kartik K; Alnæs, Dag; Endestad, Tor; Magnussen, Svein

2015-01-01

Retention of features in visual short-term memory (VSTM) involves maintenance of sensory traces in early visual cortex. However, the mechanism through which this is accomplished is not known. Here, we formulate specific hypotheses derived from studies on feature-based attention to test the prediction that visual cortex is recruited by attentional mechanisms during VSTM of low-level features. Functional magnetic resonance imaging (fMRI) of human visual areas revealed that neural populations coding for task-irrelevant feature information are suppressed during maintenance of detailed spatial frequency memory representations. The narrow spectral extent of this suppression agrees well with known effects of feature-based attention. Additionally, analyses of effective connectivity during maintenance between retinotopic areas in visual cortex show that the observed highlighting of task-relevant parts of the feature spectrum originates in V4, a visual area strongly connected with higher-level control regions and known to convey top-down influence to earlier visual areas during attentional tasks. In line with this property of V4 during attentional operations, we demonstrate that modulations of earlier visual areas during memory maintenance have behavioral consequences, and that these modulations are a result of influences from V4. Copyright © 2014 Elsevier Ltd. All rights reserved.

Selective attention supports working memory maintenance by modulating perceptual processing of distractors.

PubMed

Sreenivasan, Kartik K; Jha, Amishi P

2007-01-01

Selective attention has been shown to bias sensory processing in favor of relevant stimuli and against irrelevant or distracting stimuli in perceptual tasks. Increasing evidence suggests that selective attention plays an important role during working memory maintenance, possibly by biasing sensory processing in favor of to-be-remembered items. In the current study, we investigated whether selective attention may also support working memory by biasing processing against irrelevant and potentially distracting information. Event-related potentials (ERPs) were recorded while subjects (n = 22) performed a delayed-recognition task for faces and shoes. The delay period was filled with face or shoe distractors. Behavioral performance was impaired when distractors were congruent with the working memory domain (e.g., face distractor during working memory for faces) relative to when distractors were incongruent with the working memory domain (e.g., face distractor during shoe working memory). If attentional biasing against distractor processing is indeed functionally relevant in supporting working memory maintenance, perceptual processing of distractors is predicted to be attenuated when distractors are more behaviorally intrusive relative to when they are nonintrusive. As such, we predicted that perceptual processing of distracting faces, as measured by the face-sensitive N170 ERP component, would be reduced in the context of congruent (face) working memory relative to incongruent (shoe) working memory. The N170 elicited by distracting faces demonstrated reduced amplitude during congruent versus incongruent working memory. These results suggest that perceptual processing of distracting faces may be attenuated due to attentional biasing against sensory processing of distractors that are most behaviorally intrusive during working memory maintenance.

77 FR 38569 - Information Collection; Application for Permit for Use of Roads, Trails, or Areas Restricted by...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-06-28

... investments in NFS roads; and require commercial users to perform road maintenance commensurate with their use... commercial users to perform maintenance commensurate with their road use. Section 261.10 contains a national... appropriate investment sharing arrangements, require commercial users of NFS roads to perform maintenance...

77 FR 61017 - Draft Habitat Conservation Plan and Application for an Incidental Take Permit, Yamhill County, OR

Federal Register 2010, 2011, 2012, 2013, 2014

2012-10-05

..., although they are identified as being mostly positive. Road maintenance activities will occur along 1.02... Maintenance Zones when revegetating disturbed or bare areas. 4. Restricting normal gravel road maintenance... endangered Fender's blue butterfly incidental to otherwise lawful activities associated with county road...

40 CFR 85.2104 - Owners' compliance with instructions for proper maintenance and use.

Code of Federal Regulations, 2011 CFR

2011-07-01

... automobiles for the relevant maintenance instruction(s); or (2) A showing that the vehicle has been submitted... to someone who regularly engages in the business of servicing automobiles for the purpose of... area in which the vehicle or engine is located, unless the written instructions for proper maintenance...

40 CFR 85.2104 - Owners' compliance with instructions for proper maintenance and use.

Code of Federal Regulations, 2013 CFR

2013-07-01

... automobiles for the relevant maintenance instruction(s); or (2) A showing that the vehicle has been submitted... to someone who regularly engages in the business of servicing automobiles for the purpose of... area in which the vehicle or engine is located, unless the written instructions for proper maintenance...

40 CFR 85.2104 - Owners' compliance with instructions for proper maintenance and use.

Code of Federal Regulations, 2014 CFR

2014-07-01

... automobiles for the relevant maintenance instruction(s); or (2) A showing that the vehicle has been submitted... to someone who regularly engages in the business of servicing automobiles for the purpose of... area in which the vehicle or engine is located, unless the written instructions for proper maintenance...

40 CFR 85.2104 - Owners' compliance with instructions for proper maintenance and use.

Code of Federal Regulations, 2010 CFR

2010-07-01

... automobiles for the relevant maintenance instruction(s); or (2) A showing that the vehicle has been submitted... to someone who regularly engages in the business of servicing automobiles for the purpose of... area in which the vehicle or engine is located, unless the written instructions for proper maintenance...

40 CFR 85.2104 - Owners' compliance with instructions for proper maintenance and use.

Code of Federal Regulations, 2012 CFR

2012-07-01

... automobiles for the relevant maintenance instruction(s); or (2) A showing that the vehicle has been submitted... to someone who regularly engages in the business of servicing automobiles for the purpose of... area in which the vehicle or engine is located, unless the written instructions for proper maintenance...

77 FR 31351 - Adequacy Determination for Aspen PM10 and Fort Collins Carbon Monoxide Maintenance Plans' Motor...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-05-25

...[bdi1][bdi0] and Fort Collins Carbon Monoxide Maintenance Plans' Motor Vehicle Emissions Budgets for... Aspen Attainment/Maintenance Area'' \\1\\ and its motor vehicle emissions budget, and the ``Revised Carbon... which we determine whether a SIP revision's motor vehicle emissions budget (MVEB) is adequate for...

78 FR 12267 - Approval and Promulgation of Air Quality Implementation Plans; Charlotte, Raleigh/Durham and...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-22

... maintenance plan update is for the Charlotte, Raleigh/Durham and Winston-Salem carbon monoxide (CO) maintenance areas. Specifically, the State submitted a limited maintenance plan update for CO, showing continued attainment of the 8-hour CO National Ambient Air Quality Standard for the Charlotte, Raleigh...

30 CFR 72.503 - Determination of emissions; filter maintenance; definition of “introduced”.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Determination of emissions; filter maintenance; definition of âintroducedâ. 72.503 Section 72.503 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION...-Underground Areas of Underground Coal Mines § 72.503 Determination of emissions; filter maintenance...

30 CFR 72.503 - Determination of emissions; filter maintenance; definition of “introduced”.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 30 Mineral Resources 1 2013-07-01 2013-07-01 false Determination of emissions; filter maintenance; definition of âintroducedâ. 72.503 Section 72.503 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION...-Underground Areas of Underground Coal Mines § 72.503 Determination of emissions; filter maintenance...

30 CFR 72.503 - Determination of emissions; filter maintenance; definition of “introduced”.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Determination of emissions; filter maintenance; definition of âintroducedâ. 72.503 Section 72.503 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION...-Underground Areas of Underground Coal Mines § 72.503 Determination of emissions; filter maintenance...

30 CFR 72.503 - Determination of emissions; filter maintenance; definition of “introduced”.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Determination of emissions; filter maintenance; definition of âintroducedâ. 72.503 Section 72.503 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION...-Underground Areas of Underground Coal Mines § 72.503 Determination of emissions; filter maintenance...

30 CFR 72.503 - Determination of emissions; filter maintenance; definition of “introduced”.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Determination of emissions; filter maintenance; definition of âintroducedâ. 72.503 Section 72.503 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION...-Underground Areas of Underground Coal Mines § 72.503 Determination of emissions; filter maintenance...

Multiple Learning Strategies Project. Building Maintenance & Engineering. Low Reader. [Vol. 2.

ERIC Educational Resources Information Center

Steinberg, A.; And Others

This instructional package is one of two designed for low reader students (those reading at grade level 3-6) in the vocational area of building maintenance and engineering. The forty-four learning modules are organized into eleven units: chalkboards; carpet care; office cleaning; grounds; sanitation; boiler maintenance and operation; power and…

Multiple Learning Strategies Project. Building Maintenance & Engineering. Educable Mentally Impaired. [Vol. 3.

ERIC Educational Resources Information Center

Steinberg, Alan; And Others

This instructional package is one of three designed for educable mentally impaired students in the vocational area of building maintenance and engineering. The thirty-one learning modules are organized into nine units: grounds; sanitation; boiler maintenance and operation; power and hand tools; cabinet construction; repair of damaged furniture;…

Arizona Air Quality State Implementation Plans; Final Approval; Douglas, Arizona; Second 10-Year Sulfur Dioxide Maintenance Plan

EPA Pesticide Factsheets

EPA is taking final rulemaking action to approve, as part of the State Implementation Plan (SIP) for the State of Arizona, the second 10-year maintenance plan for the Douglas maintenance area for the 1971 National Ambient Air Quality Standards for SO2.

36 CFR 1236.28 - What additional requirements apply to the selection and maintenance of electronic records storage...

Code of Federal Regulations, 2012 CFR

2012-07-01

... apply to the selection and maintenance of electronic records storage media for permanent records? 1236... What additional requirements apply to the selection and maintenance of electronic records storage media for permanent records? (a) Agencies must maintain the storage and test areas for electronic records...

36 CFR 1236.28 - What additional requirements apply to the selection and maintenance of electronic records storage...

Code of Federal Regulations, 2014 CFR

2014-07-01

... apply to the selection and maintenance of electronic records storage media for permanent records? 1236... What additional requirements apply to the selection and maintenance of electronic records storage media for permanent records? (a) Agencies must maintain the storage and test areas for electronic records...

77 FR 75865 - Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-12-26

... 1997 Annual PM 2.5 NAAQS maintenance plan, including the on-road motor vehicle insignificance finding... Implementation Plan (SIP) to include the 1997 Annual PM 2.5 maintenance plan for the Kentucky portion of the Huntington-Ashland Area. EPA is also approving the on-road motor vehicle insignificance finding for direct PM...

118. ARAI Shop and maintenance (ARA627) building elevations of north, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

118. ARA-I Shop and maintenance (ARA-627) building elevations of north, south, east, and west sides and other details of door and window types. Norman Engineering Company 961-area/SF-627-A-2. Date: January 1959. Ineel index code no. 068-0627-00-613-102760. - Idaho National Engineering Laboratory, Army Reactors Experimental Area, Scoville, Butte County, ID

Robotics Strategy White Paper

DTIC Science & Technology

2009-03-19

Cargo packaging and pallet assembly. Use of robotics tools to support palletization falls under the supply functional area which tasks the Army to...system. 17 At first glance, remote tele-operated surgery capability appears to already exist in civilian hospitals (i.e., DaVinci Machine: http... tool free maintenance and anticipatory sustainment and improved distribution. The UJTL tasks suggest nominal improvements in the maintenance area

78 FR 59261 - Approval and Promulgation of Implementation Plans; Designation of Areas for Air Quality Planning...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-09-26

... continue to attain the 24-hour PM 10 NAAQS for at least 10 years beyond redesignation (i.e., through 2023... maintenance demonstration showing how the area will continue to attain the 24-hour PM 10 NAAQS for 10 years... serves as the Sacramento PM 10 Maintenance Plan's attainment year emissions inventory, as satisfying the...

MTRETR MAINTENANCE SHOP, TRA653. FLOOR PLAN FOR MEZZANINE: LUNCH AND ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

MTR-ETR MAINTENANCE SHOP, TRA-653. FLOOR PLAN FOR MEZZANINE: LUNCH AND CONFERENCE ROOM, STORAGE AREA, OFFICES FOR FOREMEN, STENOS, ENGINEERS, DISPATCHER, WOMEN'S RESTROOM. HUMMEL HUMMEL & JONES 810-MTR-ETR-653-A-12, 2/1958. INL INDEX NO. 532-0653-00-381-102837, REV. 3. - Idaho National Engineering Laboratory, Test Reactor Area, Materials & Engineering Test Reactors, Scoville, Butte County, ID

Manufacturing engineering: Principles for optimization

NASA Astrophysics Data System (ADS)

Koenig, Daniel T.

Various subjects in the area of manufacturing engineering are addressed. The topics considered include: manufacturing engineering organization concepts and management techniques, factory capacity and loading techniques, capital equipment programs, machine tool and equipment selection and implementation, producibility engineering, methods, planning and work management, and process control engineering in job shops. Also discussed are: maintenance engineering, numerical control of machine tools, fundamentals of computer-aided design/computer-aided manufacture, computer-aided process planning and data collection, group technology basis for plant layout, environmental control and safety, and the Integrated Productivity Improvement Program.

Focus on Mechanical Failures: Mechanisms and Detection. Proceedings of the Meeting (45th) of the Mechanical Failures Prevention Group Held in Annapolis, Maryland on April 9 - 11, 1999

DTIC Science & Technology

1991-04-04

solution to this immediate problem and, as the technology developed, opened doors to applied tribology for advanced maintenance through Mechanical Systems...Integrity Management. The development of other technologies as well enhanced Spectron’s capability, but it was the major advances in electronics and...strain gages will also be studied. The results of this program will provide a basis for future work in the area of advanced sensor technology . ONCUBSIONS

Hypergol Maintenance Facility Hazardous Waste South Staging Areas, SWMU 070

NASA Technical Reports Server (NTRS)

Wilson, Deborah M.; Miller, Ralinda R.

2015-01-01

The purpose of this CMI Year 9 AGWMR is to present the actions taken and results obtained during the ninth year of implementation of Corrective Measures (CM) at HMF. Groundwater monitoring activities were conducted in accordance with the CMI Work Plan (Tetra Tech, 2005a) and CMI Site-Specific Safety and Health Plan (Tetra Tech, 2005b). Groundwater monitoring activities detailed in this Year 9 report include pre-startup sampling in February 2014(prior to restarting the air sparging system) and quarterly performance monitoring in March, July, and September 2014.

Twisting Tongues and Memories: Explorations of the Relationship between Language Production and Verbal Working Memory

ERIC Educational Resources Information Center

Acheson, Daniel J.; MacDonald, Maryellen C.

2009-01-01

Many accounts of working memory posit specialized storage mechanisms for the maintenance of serial order. We explore an alternative, that maintenance is achieved through temporary activation in the language production architecture. Four experiments examined the extent to which the phonological similarity effect can be explained as a sublexical…

75 FR 80471 - Takes of Marine Mammals Incidental to Specified Activities; St. George Reef Light Station...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-12-22

... maintenance activities. SGRLPS proposes to transport visitors to the Station during the Sunday work window... two times per year within the proposed work window. Scheduled light maintenance activities would... light. For each emergency repair event, the SGRLPS proposes to conduct a maximum of four flights (two...

24 CFR 904.111 - Nonroutine Maintenance Reserve (NRMR).

Code of Federal Regulations, 2010 CFR

2010-04-01

... painting, etc.), (2) show for each listed item the estimated frequency of maintenance or useful life before... but only pursuant to a prior written agreement with the LHA covering the nature and scope of the work... of the work, be credited to the homebuyer's EHPA and charged as provided in paragraph (c)(2) of this...

Neurocognitive development of the ability to manipulate information in working memory.

PubMed

Crone, Eveline A; Wendelken, Carter; Donohue, Sarah; van Leijenhorst, Linda; Bunge, Silvia A

2006-06-13

The ability to manipulate information in working memory is a key factor in cognitive development. Here, we used event-related functional MRI to test the hypothesis that developmental improvements in manipulation, relative to pure maintenance, are associated with increased recruitment of dorsolateral (DL) prefrontal cortex (PFC) and superior parietal cortex. Three age groups (8-12 years old, 13-17 years old, and 18-25 years old) performed an object-working memory task with separate maintenance and manipulation conditions. We found that 8- to 12-year-olds did not perform the task as well as adolescents or adults, particularly on trials requiring manipulation in addition to maintenance. In this study, no age differences were observed in the activation profile of ventrolateral PFC, a region associated with online maintenance. In contrast, unlike the older participants, 8- to 12-year-olds failed to recruit right DL PFC and bilateral superior parietal cortex during the delay period for manipulation relative to maintenance. This group difference was observed specifically during the delay period, while participants reordered items in working memory, and could not be accounted for by group differences in performance. Across participants, activation levels in right DL PFC and superior parietal cortex, but not ventrolateral PFC, were positively correlated with performance on manipulation trials. These results indicate that increased recruitment of right DL PFC and bilateral parietal cortex during adolescence is associated with improvements in the ability to work with object representations.

30 CFR 48.22 - Definitions.

Code of Federal Regulations, 2014 CFR

2014-07-01

... surface mine, including any delivery, office, or scientific worker or occasional, short-term maintenance... construction, or who is regularly exposed to mine hazards, or who is a maintenance or service worker employed by the operator or a maintenance or service worker contracted by the operator to work at the mine for...

30 CFR 48.22 - Definitions.

Code of Federal Regulations, 2012 CFR

2012-07-01

... surface mine, including any delivery, office, or scientific worker or occasional, short-term maintenance... construction, or who is regularly exposed to mine hazards, or who is a maintenance or service worker employed by the operator or a maintenance or service worker contracted by the operator to work at the mine for...

30 CFR 48.22 - Definitions.

Code of Federal Regulations, 2013 CFR

2013-07-01

... surface mine, including any delivery, office, or scientific worker or occasional, short-term maintenance... construction, or who is regularly exposed to mine hazards, or who is a maintenance or service worker employed by the operator or a maintenance or service worker contracted by the operator to work at the mine for...

30 CFR 48.22 - Definitions.

Code of Federal Regulations, 2011 CFR

2011-07-01

... surface mine, including any delivery, office, or scientific worker or occasional, short-term maintenance... construction, or who is regularly exposed to mine hazards, or who is a maintenance or service worker employed by the operator or a maintenance or service worker contracted by the operator to work at the mine for...

77 FR 24344 - Airworthiness Directives; Learjet Inc.

Federal Register 2010, 2011, 2012, 2013, 2014

2012-04-24

... airplanes. This AD was prompted by changes to the Airworthiness Limitations Section (ALS) of the maintenance... cost Parts cost product operators Change ALS in maintenance manual.... 1 work-hour x $85 per $0 $85 $28... Section (ALS) of the maintenance manual (MM), which adds life- limits, revises life-limits, or adds...

Annual Report for Los Alamos National Laboratory Technical Area 54, Area G Disposal Facility – Fiscal Year 2015

DOE Office of Scientific and Technical Information (OSTI.GOV)

French, Sean B.; Stauffer, Philip H.; Birdsell, Kay H.

As a condition to the disposal authorization statement issued to Los Alamos National Laboratory (LANL or the Laboratory) on March 17, 2010, a comprehensive performance assessment and composite analysis maintenance program must be implemented for the Technical Area 54, Area G disposal facility. Annual determinations of the adequacy of the performance assessment and composite analysis (PA/CA) are to be conducted under the maintenance program to ensure that the conclusions reached by those analyses continue to be valid. This report summarizes the results of the fiscal year (FY) 2015 annual review for Area G.

Shuttle-launch triangular space station

NASA Technical Reports Server (NTRS)

Schneider, W. C. (Inventor); Berka, R. B. (Inventor); Kavanaugh, C. (Inventor); Nagy, K. (Inventor); Parish, R. C. (Inventor); Schliesing, J. A. (Inventor); Smith, P. D. (Inventor); Stebbins, F. J. (Inventor); Wesselski, C. J. (Inventor)

1986-01-01

A triangular space station deployable in orbit is described. The framework is comprized of three trusses, formed of a pair of generally planar faces consistine of foldable struts. The struts expand and lock into rigid structural engagement forming a repetition of equilater triangles and nonfolding diagonal struts interconnecting the two faces. The struts are joined together by node fittings. The framework can be packaged into a size and configuration transportable by a space shuttle. When deployed, the framework provides a large work/construction area and ample planar surface area for solar panels and thermal radiators. A plurity of modules are secured to the framework and then joined by tunnels to make an interconnected modular display. Thruster units for the space station orientation and altitude maintenance are provided.

77 FR 22061 - FTA Section 5307 Urbanized Area Formula Program: Allocation of Funding Caps for Treating Fuel and...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-04-12

... Propulsion as a Capital Maintenance Expense AGENCY: Federal Transit Administration (FTA), DOT. ACTION: Notice... for the propulsion of electrical vehicles, as a capital maintenance item for grants made in FY 2012... utility costs for the propulsion of electrical vehicles, as a capital maintenance item for grants made in...

The role of cortical beta oscillations in time estimation.

PubMed

Kulashekhar, Shrikanth; Pekkola, Johanna; Palva, Jaakko Matias; Palva, Satu

2016-09-01

Estimation of time is central to perception, action, and cognition. Human functional magnetic resonance imaging (fMRI) and positron emission topography (PET) have revealed a positive correlation between the estimation of multi-second temporal durations and neuronal activity in a circuit of sensory and motor areas, prefrontal and temporal cortices, basal ganglia, and cerebellum. The systems-level mechanisms coordinating the collective neuronal activity in these areas have remained poorly understood. Synchronized oscillations regulate communication in neuronal networks and could hence serve such coordination, but their role in the estimation and maintenance of multi-second time intervals has remained largely unknown. We used source-reconstructed magnetoencephalography (MEG) to address the functional significance of local neuronal synchronization, as indexed by the amplitudes of cortical oscillations, in time-estimation. MEG was acquired during a working memory (WM) task where the subjects first estimated and then memorized the durations, or in the contrast condition, the colors of dynamic visual stimuli. Time estimation was associated with stronger beta (β, 14 - 30 Hz) band oscillations than color estimation in sensory regions and attentional cortical structures that earlier have been associated with time processing. In addition, the encoding of duration information was associated with strengthened gamma- (γ, 30 - 120 Hz), and the retrieval and maintenance with alpha- (α, 8 - 14 Hz) band oscillations. These data suggest that β oscillations may provide a mechanism for estimating short temporal durations, while γ and α oscillations support their encoding, retrieval, and maintenance in memory. Hum Brain Mapp 37:3262-3281, 2016. © 2016 Wiley Periodicals, Inc. © 2016 Wiley Periodicals, Inc.

Alternative Fuels Data Center: Propane

Science.gov Websites

they work, and find information about vehicle availability, conversions, emissions, maintenance, and Fuel Prices Conserve Fuel Idle Reduction Parts & Equipment Maintenance Driving Behavior Fleet

Work-related back discomfort and associated factors among automotive maintenance mechanics in Eastern Nigeria: A cross sectional study.

PubMed

Abaraogu, Ukachukwu Okoroafor; Ezema, Charles Ikechukwu; Igwe, S E; Egwuonwu, Afamefuna Victor; Okafor, Udoka Chris

2016-02-15

Back pain has been identified as a common cause of disability in the working population. Automotive mechanics habitually use awkward back posture in their course of manual activity and hence may be at risk of work-related back pain. To investigate the prevalence, pattern and severity of back pain among automotive maintenance mechanics, as well as the personal and job variables associated with or predicting occurrence of back pain. Using a cross-sectional design, information about self-reported back pain and the associated variables were collected among 684 randomly recruited automotive mechanics. Prevalence of back pain was 76.02%; with the majority experiencing low back pain. 63.3% of the workers reported they limited their activity due to the back pain. Older workers (>50 years), daily work lasting ≥5 hours duration, no more than primary education, being normal weight, frequent use of kneeling and sustained postures, and lack of knowledge of ergonomic postures were associated with increased prevalence of back pain. Lack of job autonomy, inadequate task clarity, heavy physical work load, manual material handling, strenuous posture, noisy environment, vibrations, work schedule and inadequate auxiliary support were also associated with increased prevalence of back pain among the mechanics. Work-related back pain is prevalent among automotive maintenance mechanics. Work-related back pain is high among automotive maintenance mechanics. Workstation policy and legislation on reduction of risks with combined health literacy and ergonomic education programs in this occupational group are imperative.

Risk watershed analysis: a new approach to manage torrent control structures

NASA Astrophysics Data System (ADS)

Quefféléan, Yann; Carladous, Simon; Deymier, Christian; Marco, Olivier

2017-04-01

Torrential check dams have been built in French public forests since the 19th century, applying the Restoration and conservation of Mountainous Areas (RTM) laws (1860, 1864, 1882). The RTM department of the National Forestry Office (ONF) helps the government to decide on protective actions to implement within these areas. While more than 100 000 structures were registered in 1964, more than 14 000 check dams are currently registered and maintained within approximatively 380 000 ha of RTM public forests. The RTM department officers thus have a long experience in using check dams for soil restoration, but also in implementing other kinds of torrential protective structures such as sediment traps, embankments, bank protection, and so forth. As a part of the ONF, they are also experienced in forestry engineering. Nevertheless, some limits in torrent control management have been highlighted: - as existing protective structures are ageing, their effectiveness to protect elements at risk must be assessed but it is a difficult task ; - as available budget for maintenance is continuously decreasing, priorities have to be made but decisions are difficult : what are the existing check dams functions? what is their expected effect on torrential hazard? is maintenance cost too important given this expected effect to protect elements at risk? Given these questions, a new policy has been engaged by the RTM department since 2012. A technical overview at the torrential watershed scale is now needed to help better maintenance decisions: it has been called a Risk Watershed Analysis (Etude de Bassin de Risque in French, EBR) and is funded by the government. Its objectives are to: - recall initial objectives of protective structures : therefore, a detailed archive analysis is made ; - describe current elements at risk to protect ; - describe natural hazards at the torrential watershed scale and their evolution since protective structures implementation ; - describe civil engineering and forestry works that have been implemented within the watershed, including their cost ; - decide on current protective works to implement (maintenance and new investment). For each EBR, a multidisciplinary team is involved with specialists in geomorphology, hydrology, hydraulics, geology, civil engineering and forestry. Approximatively 1 100 EBRs should be implemented at the national scale, including other natural phenomena such as snow avalanches and rock falls. Since 2012, approximatively 10 % have been realized in areas with the most significant elements at risk. From a practical point of view, these studies have helped a better understanding of torrential watershed conditions and of torrent control expected effect over years. An analysis of these studies will be performed soon to have a first overview of torrent control effect. We claim that these EBRs could be a significant source of information to help a comprehensive evaluation of long-term effectiveness of torrent control.

The development of non-spatial working memory capacity during childhood and adolescence and the role of interference control: an N-Back task study.

PubMed

Schleepen, Tamara M J; Jonkman, Lisa M

2010-01-01

To investigate the role of interference control on the development of working memory (WM) capacity, 6-12-year-old children and adults performed an N-Back task with differing WM-load and interference control demands. Correlation analyses between flanker interference scores and WM-load levels showed that interference control was only required in the 2-back condition. While WM maintenance (1-back task) reached adult accuracy levels at age 10-12, the ability to maintain information in WM during distraction (2-back-task) displayed protracted maturation into adolescence. This is suggested to reflect yet immature connections between prefrontal and posterior association areas, respectively involved in interference control and WM storage.

18. MAINTENANCE SHOP, FIRST FLOOR, INTERIOR, ENGINE AND AIRPLANE OVERHAUL ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

18. MAINTENANCE SHOP, FIRST FLOOR, INTERIOR, ENGINE AND AIRPLANE OVERHAUL AREAS; LOOKING EAST - Northwest Airways Hangar & Administration Building, 590 Bayfield Street, St. Paul Downtown Airport (Holman), Saint Paul, Ramsey County, MN

17. MAINTENANCE SHOP, FIRST FLOOR, INTERIOR, ENGINE AND AIRPLANE OVERHAUL ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

17. MAINTENANCE SHOP, FIRST FLOOR, INTERIOR, ENGINE AND AIRPLANE OVERHAUL AREAS; LOOKING WEST. - Northwest Airways Hangar & Administration Building, 590 Bayfield Street, St. Paul Downtown Airport (Holman), Saint Paul, Ramsey County, MN

The Coming Paradigm-Shift in Maintenance: From Metals to Composites

NASA Technical Reports Server (NTRS)

Hobbs, Alan; Brasil, Connie; Kanki, Barbara

2009-01-01

The purpose of this study is to examine the current maintenance practices of airline operators in the detection and repair of damage to composite structures, with the aim of learning lessons that will be applicable to the maintenance of future advanced composite airplanes. A process map was created to capture the events and activities that occur from the moment a damage event occurs, through damage detection, assessment and repair. The study is identifying areas where operational risks may negatively impact the process, where personnel are required to make judgments in the absence of procedural guidance, and areas where future tools or techniques may be of assistance.

Working Memory in the Processing of Long-Distance Dependencies: Interference and Filler Maintenance

ERIC Educational Resources Information Center

Ness, Tal; Meltzer-Asscher, Aya

2017-01-01

During the temporal delay between the filler and gap sites in long-distance dependencies, the "active filler" strategy can be implemented in two ways: the filler phrase can be actively maintained in working memory ("maintenance account"), or it can be retrieved only when the parser posits a gap ("retrieval account").…

Repair, Evaluation, Maintenance, and Rehabilitation Research Program. Lock Accident Study

DTIC Science & Technology

1990-09-01

ZIP Code) 10 . SOURCE OF FUNDIN6 NUMBERS -- . ;_ PROGRAM PROJECT TASK WORK UNIT Washington, DC 20314-1000 ELEMENT NO. NO. NO. . NO. 11. TITLE (1 eNy...miwcrwA; I ’+an na SECURITY CLASSIFICATION OF THIS PAGE 10 . WORK UNIT ACCESSION NO. (Continued). Funding provided by Repair, Evaluation, Maintenance, and... 10 PM S ............................................................... 10 District Records

Inertial Fusion Power Plant Concept of Operations and Maintenance

DOE Office of Scientific and Technical Information (OSTI.GOV)

Anklam, T.; Knutson, B.; Dunne, A. M.

2015-01-15

Parsons and LLNL scientists and engineers performed design and engineering work for power plant pre-conceptual designs based on the anticipated laser fusion demonstrations at the National Ignition Facility (NIF). Work included identifying concepts of operations and maintenance (O&M) and associated requirements relevant to fusion power plant systems analysis. A laser fusion power plant would incorporate a large process and power conversion facility with a laser system and fusion engine serving as the heat source, based in part on some of the systems and technologies advanced at NIF. Process operations would be similar in scope to those used in chemical, oilmore » refinery, and nuclear waste processing facilities, while power conversion operations would be similar to those used in commercial thermal power plants. While some aspects of the tritium fuel cycle can be based on existing technologies, many aspects of a laser fusion power plant presents several important and unique O&M requirements that demand new solutions. For example, onsite recovery of tritium; unique remote material handling systems for use in areas with high radiation, radioactive materials, or high temperatures; a five-year fusion engine target chamber replacement cycle with other annual and multi-year cycles anticipated for major maintenance of other systems, structures, and components (SSC); and unique SSC for fusion target waste recycling streams. This paper describes fusion power plant O&M concepts and requirements, how O&M requirements could be met in design, and how basic organizational and planning issues can be addressed for a safe, reliable, economic, and feasible fusion power plant.« less

Inertial fusion power plant concept of operations and maintenance

NASA Astrophysics Data System (ADS)

Knutson, Brad; Dunne, Mike; Kasper, Jack; Sheehan, Timothy; Lang, Dwight; Anklam, Tom; Roberts, Valerie; Mau, Derek

2015-02-01

Parsons and LLNL scientists and engineers performed design and engineering work for power plant pre-conceptual designs based on the anticipated laser fusion demonstrations at the National Ignition Facility (NIF). Work included identifying concepts of operations and maintenance (O&M) and associated requirements relevant to fusion power plant systems analysis. A laser fusion power plant would incorporate a large process and power conversion facility with a laser system and fusion engine serving as the heat source, based in part on some of the systems and technologies advanced at NIF. Process operations would be similar in scope to those used in chemical, oil refinery, and nuclear waste processing facilities, while power conversion operations would be similar to those used in commercial thermal power plants. While some aspects of the tritium fuel cycle can be based on existing technologies, many aspects of a laser fusion power plant presents several important and unique O&M requirements that demand new solutions. For example, onsite recovery of tritium; unique remote material handling systems for use in areas with high radiation, radioactive materials, or high temperatures; a five-year fusion engine target chamber replacement cycle with other annual and multi-year cycles anticipated for major maintenance of other systems, structures, and components (SSC); and unique SSC for fusion target waste recycling streams. This paper describes fusion power plant O&M concepts and requirements, how O&M requirements could be met in design, and how basic organizational and planning issues can be addressed for a safe, reliable, economic, and feasible fusion power plant.

Software maintenance in scientific and engineering environments: An introduction and guide

NASA Technical Reports Server (NTRS)

Wright, David

1986-01-01

The purpose of software maintenance techniques is addressed. The aims of perfective, adaptive and corrective software maintenance are defined and discussed, especially in the NASA research environment. Areas requiring maintenance, and tools available for this, and suggestions for their use are made. Stress is placed on the organizational aspect of maintenance at both the individual and group level. Particular emphasis is placed on the use of various forms of documentation as the basis around which to organize. Finally, suggestions are given on how to proceed in the partial or complete absence of such documentation.

Spatial sequences, but not verbal sequences, are vulnerable to general interference during retention in working memory.

PubMed

Morey, Candice C; Miron, Monica D

2016-12-01

Among models of working memory, there is not yet a consensus about how to describe functions specific to storing verbal or visual-spatial memories. We presented aural-verbal and visual-spatial lists simultaneously and sometimes cued one type of information after presentation, comparing accuracy in conditions with and without informative retro-cues. This design isolates interference due specifically to maintenance, which appears most clearly in the uncued trials, from interference due to encoding, which occurs in all dual-task trials. When recall accuracy was comparable between tasks, we found that spatial memory was worse in uncued than in retro-cued trials, whereas verbal memory was not. Our findings bolster proposals that maintenance of spatial serial order, like maintenance of visual materials more broadly, relies on general rather than specialized resources, while maintenance of verbal sequences may rely on domain-specific resources. We argue that this asymmetry should be explicitly incorporated into models of working memory. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

14 CFR 147.17 - Instructional equipment requirements.

Code of Federal Regulations, 2010 CFR

2010-01-01

... (CONTINUED) SCHOOLS AND OTHER CERTIFICATED AGENCIES AVIATION MAINTENANCE TECHNICIAN SCHOOLS Certification... maintenance technician might be required to work and with which the technician should be familiar. (b) The...

Maintenance of the Hanford cone penetrometer platform during fiscal year 1999

DOE Office of Scientific and Technical Information (OSTI.GOV)

IWATATE, D.F.

This SOW describes services requested of Applied Research and Associates, Inc. (ARA), as a commercial provider of cone penetrometer equipment and services, to provide routine inspection and minimum preventive maintenance on the Hanford CP Platform (CPP) during Fiscal Year 1999. This SOW specifically pertains to the maintenance of the CPP and associated support equipment and is limited in scope to routine preventive maintenance and identification of any deficiencies. ARA is the original manufacturer of the CPP and will conduct this work following the vendor-prepared maintenance schedule.

Maintenance Work, Maintenance Skills: The Case of a Major Water Company in the UK.

ERIC Educational Resources Information Center

Cooke, Fang Lee

2002-01-01

A case study of a British water company found that technological change had only a moderate impact on technical skills but increased the need for diagnostic and information technology skills for the maintenance of electronic equipment. Organizational restructuring increased requirements for functional flexibility and interpersonal skills.…

76 FR 64851 - Airworthiness Directives; Learjet Inc. Model 45 Airplanes

Federal Register 2010, 2011, 2012, 2013, 2014

2011-10-19

... Limitations Section (ALS) of the maintenance manual, which adds life-limits, revises life-limits, or adds.... Discussion We have reviewed the design approval holder's changes to the ALS of the maintenance manual, which... Labor cost Parts cost product operators Change ALS in maintenance manual.... 1 work-hour x $85 per $0...

30 CFR 74.10 - Operating and maintenance instructions.

Code of Federal Regulations, 2010 CFR

2010-07-01

... storage instructions and a maintenance and service life plan with each new CPDM device sold. These... of how the CPDM works; (ii) A schematic diagram of the CPDM; (iii) Procedures for wearing and use of... functioning of the CPDM. (2) The maintenance and service life plan must address: (i) Conditions that should...

Distinct Effects of Trial-Driven and Task Set-Related Control in Primary Visual Cortex

PubMed Central

Vaden, Ryan J.; Visscher, Kristina M.

2015-01-01

Task sets are task-specific configurations of cognitive processes that facilitate task-appropriate reactions to stimuli. While it is established that the trial-by-trial deployment of visual attention to expected stimuli influences neural responses in primary visual cortex (V1) in a retinotopically specific manner, it is not clear whether the mechanisms that help maintain a task set over many trials also operate with similar retinotopic specificity. Here, we address this question by using BOLD fMRI to characterize how portions of V1 that are specialized for different eccentricities respond during distinct components of an attention-demanding discrimination task: cue-driven preparation for a trial, trial-driven processing, task-initiation at the beginning of a block of trials, and task-maintenance throughout a block of trials. Tasks required either unimodal attention to an auditory or a visual stimulus or selective intermodal attention to the visual or auditory component of simultaneously presented visual and auditory stimuli. We found that while the retinotopic patterns of trial-driven and cue-driven activity depended on the attended stimulus, the retinotopic patterns of task-initiation and task-maintenance activity did not. Further, only the retinotopic patterns of trial-driven activity were found to depend on the presence of intermodal distraction. Participants who performed well on the intermodal selective attention tasks showed strong task-specific modulations of both trial-driven and task-maintenance activity. Importantly, task-related modulations of trial-driven and task-maintenance activity were in opposite directions. Together, these results confirm that there are (at least) two different processes for top-down control of V1: One, working trial-by-trial, differently modulates activity across different eccentricity sectors—portions of V1 corresponding to different visual eccentricities. The second process works across longer epochs of task performance, and does not differ among eccentricity sectors. These results are discussed in the context of previous literature examining top-down control of visual cortical areas. PMID:26163806

Maintenance cost, toppling risk and size of trees in a self-thinning stand.

PubMed

Larjavaara, Markku

2010-07-07

Wind routinely topples trees during storms, and the likelihood that a tree is toppled depends critically on its allometry. Yet none of the existing theories to explain tree allometry consider wind drag on tree canopies. Since leaf area index in crowded, self-thinning stands is independent of stand density, the drag force per unit land can also be assumed to be independent of stand density, with only canopy height influencing the total toppling moment. Tree stem dimensions and the self-thinning biomass can then be computed by further assuming that the risk of toppling over and stem maintenance per unit land area are independent of stand density, and that stem maintenance cost is a linear function of stem surface area and sapwood volume. These assumptions provide a novel way to understand tree allometry and lead to a self-thinning line relating tree biomass and stand density with a power between -3/2 and -2/3 depending on the ratio of maintenance of sapwood and stem surface. (c) 2010 Elsevier Ltd. All rights reserved.

Optimizing preventive maintenance policy: A data-driven application for a light rail braking system.

PubMed

Corman, Francesco; Kraijema, Sander; Godjevac, Milinko; Lodewijks, Gabriel

2017-10-01

This article presents a case study determining the optimal preventive maintenance policy for a light rail rolling stock system in terms of reliability, availability, and maintenance costs. The maintenance policy defines one of the three predefined preventive maintenance actions at fixed time-based intervals for each of the subsystems of the braking system. Based on work, maintenance, and failure data, we model the reliability degradation of the system and its subsystems under the current maintenance policy by a Weibull distribution. We then analytically determine the relation between reliability, availability, and maintenance costs. We validate the model against recorded reliability and availability and get further insights by a dedicated sensitivity analysis. The model is then used in a sequential optimization framework determining preventive maintenance intervals to improve on the key performance indicators. We show the potential of data-driven modelling to determine optimal maintenance policy: same system availability and reliability can be achieved with 30% maintenance cost reduction, by prolonging the intervals and re-grouping maintenance actions.

Optimizing preventive maintenance policy: A data-driven application for a light rail braking system

PubMed Central

Corman, Francesco; Kraijema, Sander; Godjevac, Milinko; Lodewijks, Gabriel

2017-01-01

This article presents a case study determining the optimal preventive maintenance policy for a light rail rolling stock system in terms of reliability, availability, and maintenance costs. The maintenance policy defines one of the three predefined preventive maintenance actions at fixed time-based intervals for each of the subsystems of the braking system. Based on work, maintenance, and failure data, we model the reliability degradation of the system and its subsystems under the current maintenance policy by a Weibull distribution. We then analytically determine the relation between reliability, availability, and maintenance costs. We validate the model against recorded reliability and availability and get further insights by a dedicated sensitivity analysis. The model is then used in a sequential optimization framework determining preventive maintenance intervals to improve on the key performance indicators. We show the potential of data-driven modelling to determine optimal maintenance policy: same system availability and reliability can be achieved with 30% maintenance cost reduction, by prolonging the intervals and re-grouping maintenance actions. PMID:29278245

Respiratory Health Effects Associated with Restoration Work in Post-Hurricane Katrina New Orleans

PubMed Central

Rando, Roy J.; Lefante, John J.; Freyder, Laurie M.; Jones, Robert N.

2012-01-01

Background. This study examines prevalence of respiratory conditions in New Orleans-area restoration workers after Hurricane Katrina. Methods. Between 2007 and 2010, spirometry and respiratory health and occupational questionnaire were administered to 791 New Orleans-area adults who mostly worked in the building construction and maintenance trades or custodial services. The associations between restoration work hours and lung function and prevalence of respiratory symptoms were examined by multiple linear regression, χ 2, or multiple logistic regression. Results. 74% of participants performed post-Katrina restoration work (median time: 620 hours). Symptoms reported include episodes of transient fever/cough (29%), sinus symptoms (48%), pneumonia (3.7%), and new onset asthma (4.5%). Prevalence rate ratios for post-Katrina sinus symptoms (PRR = 1.3; CI: 1.1, 1.7) and fever and cough (PRR = 1.7; CI: 1.3, 2.4) were significantly elevated overall for those who did restoration work and prevalence increased with restoration work hours. Prevalence rate ratios with restoration work were also elevated for new onset asthma (PRR = 2.2; CI: 0.8, 6.2) and pneumonia (PRR = 1.3; CI: 0.5, 3.2) but were not statistically significant. Overall, lung function was slightly depressed but was not significantly different between those with and without restoration work exposure. Conclusions. Post-Katrina restoration work is associated with moderate adverse effects on respiratory health, including sinusitis and toxic pneumonitis. PMID:23365586

Current and anticipated uses of the thermal hydraulics codes at the NRC

DOE Office of Scientific and Technical Information (OSTI.GOV)

Caruso, R.

1997-07-01

The focus of Thermal-Hydraulic computer code usage in nuclear regulatory organizations has undergone a considerable shift since the codes were originally conceived. Less work is being done in the area of {open_quotes}Design Basis Accidents,{close_quotes}, and much more emphasis is being placed on analysis of operational events, probabalistic risk/safety assessment, and maintenance practices. All of these areas need support from Thermal-Hydraulic computer codes to model the behavior of plant fluid systems, and they all need the ability to perform large numbers of analyses quickly. It is therefore important for the T/H codes of the future to be able to support thesemore » needs, by providing robust, easy-to-use, tools that produce easy-to understand results for a wider community of nuclear professionals. These tools need to take advantage of the great advances that have occurred recently in computer software, by providing users with graphical user interfaces for both input and output. In addition, reduced costs of computer memory and other hardware have removed the need for excessively complex data structures and numerical schemes, which make the codes more difficult and expensive to modify, maintain, and debug, and which increase problem run-times. Future versions of the T/H codes should also be structured in a modular fashion, to allow for the easy incorporation of new correlations, models, or features, and to simplify maintenance and testing. Finally, it is important that future T/H code developers work closely with the code user community, to ensure that the code meet the needs of those users.« less

Investigation of verbal and visual working memory by multi-channel time-resolved functional near-infrared spectroscopy

NASA Astrophysics Data System (ADS)

Contini, D.; Caffini, M.; Re, R.; Zucchelli, L.; Spinelli, L.; Basso Moro, S.; Bisconti, S.; Ferrari, M.; Quaresima, V.; Cutini, S.; Torricelli, A.

2013-03-01

Working memory (WM) is fundamental for a number of cognitive processes, such as comprehension, reasoning and learning. WM allows the short-term maintenance and manipulation of the information selected by attentional processes. The goal of this study was to examine by time-resolved fNIRS neural correlates of the verbal and visual WM during forward and backward digit span (DF and DB, respectively) tasks, and symbol span (SS) task. A neural dissociation was hypothesised between the maintenance and manipulation processes. In particular, a dorsolateral/ventrolateral prefrontal cortex (DLPFC/VLPFC) recruitment was expected during the DB task, whilst a lateralised involvement of Brodmann Area (BA) 10 was expected during the execution of the DF task. Thirteen subjects were monitored by a multi-channel, dual-wavelength (690 and 829 nm) time-resolved fNIRS system during 3 minutes long DF and DB tasks and 4 minutes long SS task. The participants' mean memory span was calculated for each task: DF: 6.46+/-1.05 digits; DB: 5.62+/-1.26 digits; SS: 4.69+/-1.32 symbols. No correlation was found between the span level and the heart rate data (measured by pulse oximeter). As expected, DB elicited a broad activated area, in the bilateral VLPFC and the right DLPFC, whereas a more localised activation was observed over the right hemisphere during either DF (BA 10) or SS (BA 10 and 44). The robust involvement of the DLPFC during DB, compared to DF, is compatible with previous findings and with the key role of the central executive subserving in manipulating processes.

Sustained maintenance of somatotopic information in brain regions recruited by tactile working memory.

PubMed

Katus, Tobias; Müller, Matthias M; Eimer, Martin

2015-01-28

To adaptively guide ongoing behavior, representations in working memory (WM) often have to be modified in line with changing task demands. We used event-related potentials (ERPs) to demonstrate that tactile WM representations are stored in modality-specific cortical regions, that the goal-directed modulation of these representations is mediated through hemispheric-specific activation of somatosensory areas, and that the rehearsal of somatotopic coordinates in memory is accomplished by modality-specific spatial attention mechanisms. Participants encoded two tactile sample stimuli presented simultaneously to the left and right hands, before visual retro-cues indicated which of these stimuli had to be retained to be matched with a subsequent test stimulus on the same hand. Retro-cues triggered a sustained tactile contralateral delay activity component with a scalp topography over somatosensory cortex contralateral to the cued hand. Early somatosensory ERP components to task-irrelevant probe stimuli (that were presented after the retro-cues) and to subsequent test stimuli were enhanced when these stimuli appeared at the currently memorized location relative to other locations on the cued hand, demonstrating that a precise focus of spatial attention was established during the selective maintenance of tactile events in WM. These effects were observed regardless of whether participants performed the matching task with uncrossed or crossed hands, indicating that WM representations in this task were based on somatotopic rather than allocentric spatial coordinates. In conclusion, spatial rehearsal in tactile WM operates within somatotopically organized sensory brain areas that have been recruited for information storage. Copyright © 2015 Katus et al.

78 FR 46861 - Approval and Promulgation of Air Quality Implementation Plans; State of Colorado; Second Ten-Year...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-08-02

...) section 175A(b) second 10-year maintenance plan for the Greeley area for the carbon monoxide (CO) National Ambient Air Quality Standard (NAAQS). This limited maintenance plan (LMP) addresses maintenance of the CO..., Mailcode 8P-AR, 1595 Wynkoop Street, Denver, Colorado 80202-1129. Hand Delivery: Carl Daly, Director, Air...

How to evaluate and compare maintenance contracts: a checklist.

PubMed

Gustine, S M; Young, P

1986-07-01

Several factors need to be considered when comparing computerized tomography (CT) maintenance contracts. Five areas in particular require careful review to ensure that an institution is getting maximum value for its contract dollars: the credibility of the servicing company; the servicing engineer's qualifications and commitments; a thorough understanding of contract terminology; accurate analysis standards; and professionalism. The following article examines each of these areas in closer detail.

Industrial relations: workings of the maintenance strike.

PubMed

Davidson, N

1978-11-10

The frustrations leading to the maintenance dispute go back four years. Author highlights the NHS's inability to handle internal disagreements, and the problems of a bureaucratic and politically-directed profession.

Working memory still needs verbal rehearsal.

PubMed

Lucidi, Annalisa; Langerock, Naomi; Hoareau, Violette; Lemaire, Benoît; Camos, Valérie; Barrouillet, Pierre

2016-02-01

The causal role of verbal rehearsal in working memory has recently been called into question. For example, the SOB-CS (Serial Order in a Box-Complex Span) model assumes that there is no maintenance process for the strengthening of items in working memory, but instead a process of removal of distractors that are involuntarily encoded and create interference with memory items. In the present study, we tested the idea that verbal working memory performance can be accounted for without assuming a causal role of the verbal rehearsal process. We demonstrate in two experiments using a complex span task and a Brown-Peterson paradigm that increasing the number of repetitions of the same distractor (the syllable ba that was read aloud at each of its occurrences on screen) has a detrimental effect on the concurrent maintenance of consonants whereas the maintenance of spatial locations remains unaffected. A detailed analysis of the tasks demonstrates that accounting for this effect within the SOB-CS model requires a series of unwarranted assumptions leading to undesirable further predictions contradicted by available experimental evidence. We argue that the hypothesis of a maintenance mechanism based on verbal rehearsal that is impeded by concurrent articulation still provides the simplest and most compelling account of our results.

30 CFR 75.800-4 - Testing, examination, and maintenance of circuit breakers; record.

Code of Federal Regulations, 2010 CFR

2010-07-01

... Underground High-Voltage Distribution § 75.800-4 Testing, examination, and maintenance of circuit breakers... adjustment of all circuit breakers protecting high-voltage circuits which enter any underground area of the...

Lunar robotic maintenance module

NASA Technical Reports Server (NTRS)

Ayres, Michael L.

1988-01-01

A design for a robotic maintenance module that will assist a mobile 100-meter lunar drill is introduced. The design considers the following areas of interest: the atmospheric conditions, actuator systems, power supply, material selection, weight, cooling system and operation.

Industrial Education Curriculum.

ERIC Educational Resources Information Center

Alaska State Dept. of Education, Juneau. Div. of Adult and Vocational Education.

This handbook contains a competency-based curriculum for teaching industrial education in Alaska. Competencies are listed for the following areas: employability, auto maintenance, building maintenance, commercial fishing, communications, construction, drafting, electronics, energy and power, forestry and logging, graphics, high technology,…

The air transportation industry birthplace of reliability-centered maintenance

DOE Office of Scientific and Technical Information (OSTI.GOV)

Matteson, T.D.

1996-08-01

The 1980s and 1970s provided a timely opportunity for examining and radically changing the process called {open_quotes}preventive maintenance{close_quotes} as it is applied to the aircraft used for scheduled air transportation. The Federal Aviation Administration and four major airlines, United, American, Pan American and Trans World, were the {open_quotes}principals{close_quotes} in that process. While United`s work with the FAA on the Boeing 737 had opened the door a crack, the Boeing 747 presented a major opportunity to radically improve the process for maintenance program design. That program was guided by the results of United`s analyses of failure data from operations of severalmore » fleets, each larger than 100 aircraft, and the concurrent experience of American, Pan American and Trans World. That knowledge provided the insights necessary to support an entirely different approach to maintenance program design. As a result, while United`s existing maintenance program required scheduled overhaul of 339 items on each DC-8, it required overhaul of only 8 items on the B-7471 Although the initial thrust of that work focused on components of active systems, there was concurrent work focused on items whose principal function was to carry the loads associated with operations. That program focused on the classification of structurally-significant items and their classification as {open_quotes}safe life{close_quotes} or {open_quotes}damage tolerant{close_quote} to determine what periodic replacements or repeated inspections were required. That work came to the attention of the Department of Defense which supported preparation of the book-length report by F. Stanley Nowlan and Howard F. Heap at United Airlines entitled {open_quote}Reliability-Centered maintenance{close_quotes}.« less

77 FR 30473 - Notice of Intent To Revise Stormwater Regulations To Specify That an NPDES Permit Is Not Required...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-05-23

... submit for approval by the Washington Department of Natural Resources (DNR) a Road Maintenance and... potential road maintenance problems. While the program is enforceable, the state focuses first on technical... the maintenance of roads within and near the public lands and perform that work, in part, by...

43 CFR 3835.11 - What special filing and reporting requirements pertain to the different types of waivers?

Code of Federal Regulations, 2014 CFR

2014-10-01

... maintenance fee to maintain your claim during that assessment year; (iii) Assessment work was deferred for... MINERALS MANAGEMENT (3000) WAIVERS FROM ANNUAL MAINTENANCE FEES Filing Requirements § 3835.11 What special... the annual maintenance fee. (e) Contest actions. If the Secretary contests your mining claim or site...

43 CFR 3835.11 - What special filing and reporting requirements pertain to the different types of waivers?

Code of Federal Regulations, 2012 CFR

2012-10-01

... maintenance fee to maintain your claim during that assessment year; (iii) Assessment work was deferred for... MINERALS MANAGEMENT (3000) WAIVERS FROM ANNUAL MAINTENANCE FEES Filing Requirements § 3835.11 What special... the annual maintenance fee. (e) Contest actions. If the Secretary contests your mining claim or site...

43 CFR 3835.11 - What special filing and reporting requirements pertain to the different types of waivers?

Code of Federal Regulations, 2011 CFR

2011-10-01

... maintenance fee to maintain your claim during that assessment year; (iii) Assessment work was deferred for... MINERALS MANAGEMENT (3000) WAIVERS FROM ANNUAL MAINTENANCE FEES Filing Requirements § 3835.11 What special... the annual maintenance fee. (e) Contest actions. If the Secretary contests your mining claim or site...

43 CFR 3835.11 - What special filing and reporting requirements pertain to the different types of waivers?

Code of Federal Regulations, 2013 CFR

2013-10-01

... maintenance fee to maintain your claim during that assessment year; (iii) Assessment work was deferred for... MINERALS MANAGEMENT (3000) WAIVERS FROM ANNUAL MAINTENANCE FEES Filing Requirements § 3835.11 What special... the annual maintenance fee. (e) Contest actions. If the Secretary contests your mining claim or site...

Dual-task interference in visual working memory: A limitation in storage capacity but not in encoding or retrieval

PubMed Central

Fougnie, Daryl; Marois, René

2009-01-01

The concurrent maintenance of two visual working memory (VWM) arrays can lead to profound interference. It is unclear, however, whether these costs arise from limitations in VWM storage capacity (Fougnie & Marois, 2006), or from interference between the storage of one visual array and encoding or retrieval of another visual array (Cowan & Morey, 2007). Here, we show that encoding a VWM array does not interfere with maintenance of another VWM array unless the two displays exceed maintenance capacity (Experiments 1 and 2). Moreover, manipulating the extent to which encoding and maintenance can interfere with one another had no discernable effect on dual-task performance (Experiment 2). Finally, maintenance of a VWM array was not affected by retrieval of information from another VWM array (Experiment 3). Taken together, these findings demonstrate that dual-task interference between two concurrent VWM tasks is due to a capacity-limited store that is independent from encoding and retrieval processes. PMID:19933566

Attentional and non-attentional systems in the maintenance of verbal information in working memory: the executive and phonological loops

PubMed Central

Camos, Valérie; Barrouillet, Pierre

2014-01-01

Working memory is the structure devoted to the maintenance of information at short term during concurrent processing activities. In this respect, the question regarding the nature of the mechanisms and systems fulfilling this maintenance function is of particular importance and has received various responses in the recent past. In the time-based resource-sharing (TBRS) model, we suggest that only two systems sustain the maintenance of information at the short term, counteracting the deleterious effect of temporal decay and interference. A non-attentional mechanism of verbal rehearsal, similar to the one described by Baddeley in the phonological loop model, uses language processes to reactivate phonological memory traces. Besides this domain-specific mechanism, an executive loop allows the reconstruction of memory traces through an attention-based mechanism of refreshing. The present paper reviews evidence of the involvement of these two independent systems in the maintenance of verbal memory items. PMID:25426049

A cross-sectional study of hearing thresholds among 4627 Norwegian train and track maintenance workers.

PubMed

Lie, Arve; Skogstad, Marit; Johnsen, Torstein Seip; Engdahl, Bo; Tambs, Kristian

2014-10-16

Railway workers performing maintenance work of trains and tracks could be at risk of developing noise-induced hearing loss, since they are exposed to noise levels of 75-90 dB(A) with peak exposures of 130-140 dB(C). The objective was to make a risk assessment by comparing the hearing thresholds among train and track maintenance workers with a reference group not exposed to noise and reference values from the ISO 1999. Cross-sectional. A major Norwegian railway company. 1897 and 2730 male train and track maintenance workers, respectively, all exposed to noise, and 2872 male railway traffic controllers and office workers not exposed to noise. The primary outcome was the hearing threshold (pure tone audiometry, frequencies from 0.5 to 8 kHz), and the secondary outcome was the prevalence of audiometric notches (Coles notch) of the most recent audiogram. Train and track maintenance workers aged 45 years or older had a small mean hearing loss in the 3-6 kHz area of 3-5 dB. The hearing loss was less among workers younger than 45 years. Audiometric notches were slightly more prevalent among the noise exposed (59-64%) group compared with controls (49%) for all age groups. They may therefore be a sensitive measure in disclosing an early hearing loss at a group level. Train and track maintenance workers aged 45 years or older, on average, have a slightly greater hearing loss and more audiometric notches compared with reference groups not exposed to noise. Younger (<45 years) workers have hearing thresholds comparable to the controls. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

Smart built-in test

NASA Technical Reports Server (NTRS)

Richards, Dale W.

1990-01-01

The work which built-in test (BIT) is asked to perform in today's electronic systems increases with every insertion of new technology or introduction of tighter performance criteria. Yet the basic purpose remains unchanged -- to determine with high confidence the operational capability of that equipment. Achievement of this level of BIT performance requires the management and assimilation of a large amount of data, both realtime and historical. Smart BIT has taken advantage of advanced techniques from the field of artificial intelligence (AI) in order to meet these demands. The Smart BIT approach enhances traditional functional BIT by utilizing AI techniques to incorporate environmental stress data, temporal BIT information and maintenance data, and realtime BIT reports into an integrated test methodology for increased BIT effectiveness and confidence levels. Future research in this area will incorporate onboard fault-logging of BIT output, stress data and Smart BIT decision criteria in support of a singular, integrated and complete test and maintenance capability. The state of this research is described along with a discussion of directions for future development.

NASA's In Space Manufacturing Initiatives: Conquering the Challenges of In-Space Manufacturing

NASA Technical Reports Server (NTRS)

Clinton, R. G., Jr.

2017-01-01

Current maintenance logistics strategy will not be effective for deep space exploration missions. ISM (In Space Manufacturing) offers the potential to: Significantly reduce maintenance logistics mass requirements; Enable the use of recycled materials and in-situ resources for more dramatic reductions in mass requirements; Enable flexibility, giving systems a broad capability to adapt to unanticipated circumstances; Mitigate risks that are not covered by current approaches to maintainability. Multiple projects are underway currently to develop and validate these capabilities for infusion into ISM exploration systems. ISS is a critical testbed for demonstrating ISM technologies, proving out these capabilities, and performing operational validation of deep space ISM applications. Developing and testing FabLab is a major milestone for springboard to DSG/Cis-lunar Space applications. ISM is a necessary paradigm shift in space operations – design for repair culture must be embraced. ISM team needs to be working with exploration system designers now to identify high-value application areas and influence design.

Smart built-in test

NASA Astrophysics Data System (ADS)

Richards, Dale W.

1990-03-01

The work which built-in test (BIT) is asked to perform in today's electronic systems increases with every insertion of new technology or introduction of tighter performance criteria. Yet the basic purpose remains unchanged -- to determine with high confidence the operational capability of that equipment. Achievement of this level of BIT performance requires the management and assimilation of a large amount of data, both realtime and historical. Smart BIT has taken advantage of advanced techniques from the field of artificial intelligence (AI) in order to meet these demands. The Smart BIT approach enhances traditional functional BIT by utilizing AI techniques to incorporate environmental stress data, temporal BIT information and maintenance data, and realtime BIT reports into an integrated test methodology for increased BIT effectiveness and confidence levels. Future research in this area will incorporate onboard fault-logging of BIT output, stress data and Smart BIT decision criteria in support of a singular, integrated and complete test and maintenance capability. The state of this research is described along with a discussion of directions for future development.

A Multi-Level Decision Fusion Strategy for Condition Based Maintenance of Composite Structures

PubMed Central

Sharif Khodaei, Zahra; Aliabadi, M.H.

2016-01-01

In this work, a multi-level decision fusion strategy is proposed which weighs the Value of Information (VoI) against the intended functions of a Structural Health Monitoring (SHM) system. This paper presents a multi-level approach for three different maintenance strategies in which the performance of the SHM systems is evaluated against its intended functions. Level 1 diagnosis results in damage existence with minimum sensors covering a large area by finding the maximum energy difference for the guided waves propagating in pristine structure and the post-impact state; Level 2 diagnosis provides damage detection and approximate localization using an approach based on Electro-Mechanical Impedance (EMI) measures, while Level 3 characterizes damage (exact location and size) in addition to its detection by utilising a Weighted Energy Arrival Method (WEAM). The proposed multi-level strategy is verified and validated experimentally by detection of Barely Visible Impact Damage (BVID) on a curved composite fuselage panel. PMID:28773910

29 CFR 1915.15 - Maintenance of safe conditions.

Code of Federal Regulations, 2012 CFR

2012-07-01

... Enclosed Spaces and Other Dangerous Atmospheres in Shipyard Employment § 1915.15 Maintenance of safe... within a tested confined or enclosed space or other dangerous atmosphere occurs, work in the affected...

29 CFR 1915.15 - Maintenance of safe conditions.

Code of Federal Regulations, 2013 CFR

2013-07-01

... Enclosed Spaces and Other Dangerous Atmospheres in Shipyard Employment § 1915.15 Maintenance of safe... within a tested confined or enclosed space or other dangerous atmosphere occurs, work in the affected...

29 CFR 1915.15 - Maintenance of safe conditions.

Code of Federal Regulations, 2014 CFR

2014-07-01

... Enclosed Spaces and Other Dangerous Atmospheres in Shipyard Employment § 1915.15 Maintenance of safe... within a tested confined or enclosed space or other dangerous atmosphere occurs, work in the affected...

Solid Waste Management Units And Areas Of Concern Annual Long-Term Monitoring & Maintenance Report For Calendar Year 2016.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Dotson, Patrick Wells; Little, Bonnie Colleen

Long-term controls were maintained at 21 Solid Waste Management Units (SWMUs) and Areas of Concern (AOCs) in accordance with the requirements of the “Long-Term Monitoring and Maintenance Plan for SWMUs and AOCs Granted Corrective Action Complete with Controls” in Attachment M of the Resource Conservation and Recovery Act Facility Operating Permit, which took effect February 26, 2015. Maintenance and controls at these SWMUs and AOCs are described and documented in this report. Conditions requiring maintenance or repair activities were not identified for any of the inspected SWMUs or AOCs. Based upon the inspections performed and site conditions observed, the administrativemore » and physical institutional controls in place at the SWMUs and AOCs are effectively providing continued protection of human health and the environment. This report does not present monitoring and maintenance activities for SWMU 76, the Mixed Waste Landfill; those activities adhere to the approved MWL LTMM Plan, Section 4.8.1 requiring a separate annual report which will be submitted to the NMED by June 30, 2017.« less

Analyses in Support of Risk-Informed Natural Gas Vehicle Maintenance Facility Codes and Standards: Phase II.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Blaylock, Myra L.; LaFleur, Chris Bensdotter; Muna, Alice Baca

Safety standards development for maintenance facilities of liquid and compressed natural gas fueled vehicles is required to ensure proper facility design and operating procedures. Standard development organizations are utilizing risk-informed concepts to develop natural gas vehicle (NGV) codes and standards so that maintenance facilities meet acceptable risk levels. The present report summarizes Phase II work for existing NGV repair facility code requirements and highlights inconsistencies that need quantitative analysis into their effectiveness. A Hazardous and Operability study was performed to identify key scenarios of interest using risk ranking. Detailed simulations and modeling were performed to estimate the location and behaviormore » of natural gas releases based on these scenarios. Specific code conflicts were identified, and ineffective code requirements were highlighted and resolutions proposed. These include ventilation rate basis on area or volume, as well as a ceiling offset which seems ineffective at protecting against flammable gas concentrations. ACKNOWLEDGEMENTS The authors gratefully acknowledge Bill Houf (SNL -- Retired) for his assistance with the set-up and post-processing of the numerical simulations. The authors also acknowledge Doug Horne (retired) for his helpful discussions. We would also like to acknowledge the support from the Clean Cities program of DOE's Vehicle Technology Office.« less

[Changes in the forms of industrial production and their effects on workers' health].

PubMed

Fernandes, Rita de Cássia Pereira; Assunção, Ada Avila; Carvalho, Fernando Martins

2010-06-01

This study aimed to identify determinants of health in workers of plastic industries. Production organization, machinery from maintenance and productive areas, and workers' characteristics of 14 plastic industries from Greater Salvador, Bahia State, Brazil, were described. Data were collected about development policy of each company; marketing, operational procedures; production and quality requirements, and formal rules of work organization. High strain management techniques for production time reduction have been implemented. The increase of work rhythm, reduction of break time, and a situation of high cognitive demand impose to workers anomalous body positioning for performing tasks that imply repetitive movements. Physical and psychosocial demands (repetitive work, lower control of the worker on his own tasks, time pressure and job dissatisfaction) compose a complex of conditions adverse to workers' health. Changes in production management, personnel and business impose new strains into the development of task by the workers and bringing in new risk factors to workers' health.

A unified software framework for deriving, visualizing, and exploring abstraction networks for ontologies

PubMed Central

Ochs, Christopher; Geller, James; Perl, Yehoshua; Musen, Mark A.

2016-01-01

Software tools play a critical role in the development and maintenance of biomedical ontologies. One important task that is difficult without software tools is ontology quality assurance. In previous work, we have introduced different kinds of abstraction networks to provide a theoretical foundation for ontology quality assurance tools. Abstraction networks summarize the structure and content of ontologies. One kind of abstraction network that we have used repeatedly to support ontology quality assurance is the partial-area taxonomy. It summarizes structurally and semantically similar concepts within an ontology. However, the use of partial-area taxonomies was ad hoc and not generalizable. In this paper, we describe the Ontology Abstraction Framework (OAF), a unified framework and software system for deriving, visualizing, and exploring partial-area taxonomy abstraction networks. The OAF includes support for various ontology representations (e.g., OWL and SNOMED CT's relational format). A Protégé plugin for deriving “live partial-area taxonomies” is demonstrated. PMID:27345947

A unified software framework for deriving, visualizing, and exploring abstraction networks for ontologies.

PubMed

Ochs, Christopher; Geller, James; Perl, Yehoshua; Musen, Mark A

2016-08-01

Software tools play a critical role in the development and maintenance of biomedical ontologies. One important task that is difficult without software tools is ontology quality assurance. In previous work, we have introduced different kinds of abstraction networks to provide a theoretical foundation for ontology quality assurance tools. Abstraction networks summarize the structure and content of ontologies. One kind of abstraction network that we have used repeatedly to support ontology quality assurance is the partial-area taxonomy. It summarizes structurally and semantically similar concepts within an ontology. However, the use of partial-area taxonomies was ad hoc and not generalizable. In this paper, we describe the Ontology Abstraction Framework (OAF), a unified framework and software system for deriving, visualizing, and exploring partial-area taxonomy abstraction networks. The OAF includes support for various ontology representations (e.g., OWL and SNOMED CT's relational format). A Protégé plugin for deriving "live partial-area taxonomies" is demonstrated. Copyright © 2016 Elsevier Inc. All rights reserved.

On mechanisms triggering the levees failure along the Foenna stream on 1st January 2006 and which caused the flooding in the urban area of Sinalunga, Tuscany Region (Italy). A case study

NASA Astrophysics Data System (ADS)

Camici, Stefania; Moramarco, Tommaso; Brocca, Luca; Melone, Florisa; Lapenna, Vincenzo; Perrone, Angela; Loperte, Antonio

2010-05-01

On 1st January 2006, during an ordinary flood event, a levee failure along the Foenna stream caused the flooding in the urban area of Sinalunga, a small town located in Tuscany region (Italy). The event was monitored by a public agency with the responsibility for the control and maintenance of the natural channel networks. Long time before of flooding, people living in the surrounding area of the stream blamed the presence of wild animals and of numerous burrows along the levees. Although the numerous actions of maintenance along the levees mainly for removing the burrows, a levee seepage occurred during that flood. The presence of an outflow located on the downstream face, almost 2 m below the levee top, caused the spurt of brown water denoting the presence of sediment erosion. On the upstream face of levee, a little hole of about 30 cm at the same height of the outflow was discovered. Although the agency workers tried to close the hole by using appropriate blankets, in short time the top of the levee subsided and the overtopping flow caused a trapezoidal breach typical for an earth-fill embankment. The formation of breach was so fast that in a little more of one hour the urban area near to the Foenna stream was flooded causing high economic damages. Mechanisms triggered the levees failure are the object of this work. The analysis of the event has been first addressed to assess the state of-fact of levees conditions along the Foenna stream, thus to understand how much the activity of wild animals, in particular that of porcupine, may have affected the hydraulic safety of the embankment. At the purpose, after the event, topographical surveys of cross sections have been done along with tomographic surveys by geoelectric technique for investigating the possible presence, besides of burrows, also of tunnels dug into the levees by animals. Then, the analysis of hydrometeorological conditions of the event has allowed to better understand the evolution of the flood and if its magnitude was able to affect the hydraulic holding of levees. Finally, the seepage vulnerability of these levees has been also assessed to address their hydraulic safety applying two models based on a steady and unsteady infiltration, respectively. Based on the obtained results, the following findings can be drawn. 1) The levees failure near the Sinalunga urban area is certainly due to the presence of the porcupine burrow at middle height of upstream face of levee that has addressed the flow into the embankment and then triggered the seepage phenomenon. 2) The works of the maintenance finalized to the closure of the burrows carried out before of the flood event were necessary but not sufficient to prevent the failure of levees. 3) To prevent the failure due to burrows presence, the levees maintenance should have been addressed through both the closure of burrows and the capture of wild animals; if this action had been done for the Foenna stream then the probability of failure would have been truly low. This last aspect has been also inferred through geoelectrical tomography surveys that showed the possible presence of at least two tunnels along both faces of levees, so emphasizing as the various closure of burrows made in the past by maintenance agency were totally useless. 4) The seepage vulnerability analysis has shown that levees might be to risk of failure for floods whose durations are consistent with the ones might occur in the Foenna basin. However, for this particular event the levees failure can be only ascribed to wild animals activity, seeing that the seepage was caused by a burrow hole.

Risk mitigation strategies for operations and maintenance activities.

DOT National Transportation Integrated Search

2012-04-01

The objective of this research was to investigate the application of integrated risk modeling to operations and maintenance activities, specifically moving operations, such as pavement testing, pavement marking, painting, snow removal, shoulder work,...

Monitoring underwater explosions in the habitat of resident bottlenose dolphins.

PubMed

dos Santos, Manuel E; Couchinho, Miguel N; Rita Luís, Ana; Gonçalves, Emanuel J

2010-12-01

Maintenance work on the harbor of Setúbal, in Portugal, required the removal of a 14-m deep rocky outcrop at the ship maneuver area, using about 35 kg of Gelamonite, a nitroglycerin-based high-explosive. This important harbor is located in the Sado estuary, a biologically rich environment and an important feeding area for a resident community of bottlenose dolphins. Using different safe range calculation models, a mitigation and monitoring plan was developed that minimized the risks of these underwater explosions for the dolphins. At our monitoring station, at 2 km from the demolition site, acoustic pressure levels in excess of 170 dB re 1 μPa (root-mean-square) were measured. Samples of dead fish collected at the site were indicative of shock trauma from the blasts.

Gas Dynamic Spray Technology Demonstration

NASA Technical Reports Server (NTRS)

Burford, Pattie Lewis

2011-01-01

Zinc primer systems are currently used across NASA and AFSPC for corrosion protection of steel. AFSPC and NASA have approved the use of Thermal Spray Coatings (TSCs) as an environmentally preferable alternative. TSCs are approved in NASA-STD-5008 and AFSPC and KSC is currently looking for additional applications in which TSC can be used. Gas Dynamic Spray (GDS, also known as Cold Spray) is being evaluated as a means of repairing TSCs and for areas such as corners and edges where TSCs do not work as well. Other applications could include spot repair/maintenance of steel on structures, facilities, and ground support equipment.

Dynamic shared state maintenance in distributed virtual environments

NASA Astrophysics Data System (ADS)

Hamza-Lup, Felix George

Advances in computer networks and rendering systems facilitate the creation of distributed collaborative environments in which the distribution of information at remote locations allows efficient communication. Particularly challenging are distributed interactive Virtual Environments (VE) that allow knowledge sharing through 3D information. The purpose of this work is to address the problem of latency in distributed interactive VE and to develop a conceptual model for consistency maintenance in these environments based on the participant interaction model. An area that needs to be explored is the relationship between the dynamic shared state and the interaction with the virtual entities present in the shared scene. Mixed Reality (MR) and VR environments must bring the human participant interaction into the loop through a wide range of electronic motion sensors, and haptic devices. Part of the work presented here defines a novel criterion for categorization of distributed interactive VE and introduces, as well as analyzes, an adaptive synchronization algorithm for consistency maintenance in such environments. As part of the work, a distributed interactive Augmented Reality (AR) testbed and the algorithm implementation details are presented. Currently the testbed is part of several research efforts at the Optical Diagnostics and Applications Laboratory including 3D visualization applications using custom built head-mounted displays (HMDs) with optical motion tracking and a medical training prototype for endotracheal intubation and medical prognostics. An objective method using quaternion calculus is applied for the algorithm assessment. In spite of significant network latency, results show that the dynamic shared state can be maintained consistent at multiple remotely located sites. In further consideration of the latency problems and in the light of the current trends in interactive distributed VE applications, we propose a hybrid distributed system architecture for sensor-based distributed VE that has the potential to improve the system real-time behavior and scalability. (Abstract shortened by UMI.)

The problems and perspectives for the introduction of high-rise construction in Russian cities

NASA Astrophysics Data System (ADS)

Pershina, Anna; Radzhabov, Mehman; Dormidontova, Tatyana

2018-03-01

The propose of academic affairs is discovery the principal areas of concern high-rise construction in Russia. Examples of modern Russian and foreign high-rise construction are considered in the work. The most important problems and their solutions for Russia are identified on their basis. The everyone area of concern is considered separately. Ecology problems and influence of high-rise construction for the healthy and psychological effect of people are considered special. High-rise constructions influence negative and positive for urban environment in Moscow and Samara cities. The experience lack, defects in requirements document, which don't include all high-rise constructions specific, system problem of construction and often non-availability of proper control at the existing requirements document result for complexity of designing, construction and operation. At this moment, high-rise constructions temp is increasing in Moscow. Feasibility of high-rise buildings come up in regions of Russia. The reasons include high material inputs, irregularities of requirements network and utility lines and maintenance problems. The researching follow up of conclusions and recommendations for high-rise constructions development in Russia. The reasons of high-rise buildings are urbanization of people and necessary of concentration labor supply. The important tasks for organization are creating compact urban environment, decrease urban area for development, using an innovative technology for construction and properly maintenance. The balance between the preference of high-rise construction, inputs for construction and influence for ecology are resolve for this task.

Bridging the conservation design and delivery gap for wetland bird habitat maintenance and restoration in the Midwestern United States

USGS Publications Warehouse

Thogmartin, W.E.; Potter, B.; Soulliere, G.

2011-01-01

The U.S. Fish and Wildlife Service's adoption of Strategic Habitat Conservation is intended to increase the effectiveness and efficiency of conservation delivery by targeting effort in areas where biological benefits are greatest. Conservation funding has not often been allocated in accordance with explicit biological endpoints, and the gap between conservation design (the identification of conservation priority areas) and delivery needs to be bridged to better meet conservation goals for multiple species and landscapes. We introduce a regional prioritization scheme for North American Wetlands Conservation Act funding which explicitly addresses Midwest regional goals for wetland-dependent birds. We developed decision-support maps to guide conservation of breeding and non-breeding wetland bird habitat. This exercise suggested ~55% of the Midwest consists of potential wetland bird habitat, and areas suited for maintenance (protection) were distinguished from those most suited to restoration. Areas with greater maintenance focus were identified for central Minnesota, southeastern Wisconsin, the Upper Mississippi and Illinois rivers, and the shore of western Lake Erie and Saginaw Bay. The shores of Lakes Michigan and Superior accommodated fewer waterbird species overall, but were also important for wetland bird habitat maintenance. Abundant areas suited for wetland restoration occurred in agricultural regions of central Illinois, western Iowa, and northern Indiana and Ohio. Use of this prioritization scheme can increase effectiveness, efficiency, transparency, and credibility to land and water conservation efforts for wetland birds in the Midwestern United States.

Functional segregation of the inferior frontal gyrus for syntactic processes: a functional magnetic-resonance imaging study.

PubMed

Uchiyama, Yuji; Toyoda, Hiroshi; Honda, Manabu; Yoshida, Haruyo; Kochiyama, Takanori; Ebe, Kazutoshi; Sadato, Norihiro

2008-07-01

We used functional magnetic resonance imaging in 18 normal volunteers to determine whether there is separate representation of syntactic, semantic, and verbal working memory processing in the left inferior frontal gyrus (GFi). We compared a sentence comprehension task with a short-term memory maintenance task to identify syntactic and semantic processing regions. To investigate the effects of syntactic and verbal working memory load while minimizing the differences in semantic processes, we used comprehension tasks with garden-path (GP) sentences, which require re-parsing, and non-garden-path (NGP) sentences. Compared with the short-term memory task, sentence comprehension activated the left GFi, including Brodmann areas (BAs) 44, 45, and 47, and the left superior temporal gyrus. In GP versus NGP sentences, there was greater activity in the left BAs 44, 45, and 46 extending to the left anterior insula, the pre-supplementary motor area, and the right cerebellum. In the left GFi, verbal working memory activity was located more dorsally (BA 44/45), semantic processing was located more ventrally (BA 47), and syntactic processing was located in between (BA 45). These findings indicate a close relationship between semantic and syntactic processes, and suggest that BA 45 might link verbal working memory and semantic processing via syntactic unification processes.

Power Grid Maintenance Scheduling Intelligence Arrangement Supporting System Based on Power Flow Forecasting

NASA Astrophysics Data System (ADS)

Xie, Chang; Wen, Jing; Liu, Wenying; Wang, Jiaming

With the development of intelligent dispatching, the intelligence level of network control center full-service urgent need to raise. As an important daily work of network control center, the application of maintenance scheduling intelligent arrangement to achieve high-quality and safety operation of power grid is very important. By analyzing the shortages of the traditional maintenance scheduling software, this paper designs a power grid maintenance scheduling intelligence arrangement supporting system based on power flow forecasting, which uses the advanced technologies in maintenance scheduling, such as artificial intelligence, online security checking, intelligent visualization techniques. It implements the online security checking of maintenance scheduling based on power flow forecasting and power flow adjusting based on visualization, in order to make the maintenance scheduling arrangement moreintelligent and visual.

The Development of Memory Maintenance: Children's Use of Phonological Rehearsal and Attentional Refreshment in Working Memory Tasks

ERIC Educational Resources Information Center

Tam, Helen; Jarrold, Christopher; Baddeley, Alan D.; Sabatos-DeVito, Maura

2010-01-01

Past research suggests that children begin to phonologically rehearse at around 7 years of age. Less is known regarding the development of refreshment, an attention-based maintenance mechanism. Therefore, the use of these two maintenance methods by 6- and 8-year-olds was assessed using memory span tasks that varied in their opportunities for…

RIGHT ENGINE MAINTENANCE ON BOEING 737200. THE COWLING OF THE ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

RIGHT ENGINE MAINTENANCE ON BOEING 737-200. THE COWLING OF THE RIGHT ENGINE IS OPEN, AND THE CREW IS WORKING ON THE JACK SCREWS THAT REGULATE THE FLAPS. MECHANICS WILL CHANGE ALL FUEL AND OIL FILTERS AS WELL AS CHECKING CHIP DETECTORS FOR METAL PARTICLES THAT INDICATE BEARING FAILURE. - Greater Buffalo International Airport, Maintenance Hangar, Buffalo, Erie County, NY

32 CFR 154.17 - Special access programs.

Code of Federal Regulations, 2012 CFR

2012-07-01

...) Presidential aircrew and associated maintenance and security personnel. (2) Personnel assigned to the White... Support areas, activities, or equipment—including maintenance of the Presidential retreat, communications, and aircraft. (C) Individuals in designated units requiring a lesser degree of access to the President...

32 CFR 154.17 - Special access programs.

Code of Federal Regulations, 2013 CFR

2013-07-01

...) Presidential aircrew and associated maintenance and security personnel. (2) Personnel assigned to the White... Support areas, activities, or equipment—including maintenance of the Presidential retreat, communications, and aircraft. (C) Individuals in designated units requiring a lesser degree of access to the President...

32 CFR 154.17 - Special access programs.

Code of Federal Regulations, 2011 CFR

2011-07-01

...) Presidential aircrew and associated maintenance and security personnel. (2) Personnel assigned to the White... Support areas, activities, or equipment—including maintenance of the Presidential retreat, communications, and aircraft. (C) Individuals in designated units requiring a lesser degree of access to the President...

32 CFR 154.17 - Special access programs.

Code of Federal Regulations, 2014 CFR

2014-07-01

...) Presidential aircrew and associated maintenance and security personnel. (2) Personnel assigned to the White... Support areas, activities, or equipment—including maintenance of the Presidential retreat, communications, and aircraft. (C) Individuals in designated units requiring a lesser degree of access to the President...

Phonological Working Memory for Words and Nonwords in Cerebral Cortex.

PubMed

Perrachione, Tyler K; Ghosh, Satrajit S; Ostrovskaya, Irina; Gabrieli, John D E; Kovelman, Ioulia

2017-07-12

The primary purpose of this study was to identify the brain bases of phonological working memory (the short-term maintenance of speech sounds) using behavioral tasks analogous to clinically sensitive assessments of nonword repetition. The secondary purpose of the study was to identify how individual differences in brain activation were related to participants' nonword repetition abilities. We used functional magnetic resonance imaging to measure neurophysiological response during a nonword discrimination task derived from standard clinical assessments of phonological working memory. Healthy adult control participants (N = 16) discriminated pairs of real words or nonwords under varying phonological working memory load, which we manipulated by parametrically varying the number of syllables in target (non)words. Participants' cognitive and phonological abilities were also measured using standardized assessments. Neurophysiological responses in bilateral superior temporal gyrus, inferior frontal gyrus, and supplementary motor area increased with greater phonological working memory load. Activation in left superior temporal gyrus during nonword discrimination correlated with participants' performance on standard clinical nonword repetition tests. These results suggest that phonological working memory is related to the function of cortical structures that canonically underlie speech perception and production.

Personal resilience in nurses and midwives: effects of a work-based educational intervention.

PubMed

McDonald, Glenda; Jackson, Debra; Wilkes, Lesley; Vickers, Margaret H

2013-08-01

Nurses and midwives commonly face a variety of challenges and difficulties in their everyday work. Stress, pressure, fatigue and anxiety are acknowledged sources of workplace adversity, which causes decreased perceptions of health and wellbeing. This study reports the effects of a work-based, educational intervention to promote personal resilience in a group of 14 nurses and midwives working in a busy clinical environment. The intervention encouraged participants to focus on the key characteristics of a resilient person and the elements that assisted them in their maintenance of personal resilience. The intervention also explored potential strategies for the future. Opportunities were provided for experiential learning, creative self-expression and exposure to new ideas. Primary effects of the intervention were found to benefit the participants in personal and professional areas; by enhanced confidence, self-awareness, assertiveness and self-care. This intervention had implications for the education and practice of nurses and midwives in terms of building and maintaining their personal resilience, especially those exposed to workplace adversity.

Dorsolateral prefrontal cortex bridges bilateral primary somatosensory cortices during cross-modal working memory.

PubMed

Zhao, Di; Ku, Yixuan

2018-05-01

Neural activity in the dorsolateral prefrontal cortex (DLPFC) has been suggested to integrate information from distinct sensory areas. However, how the DLPFC interacts with the bilateral primary somatosensory cortices (SIs) in tactile-visual cross-modal working memory has not yet been established. In the present study, we applied single-pulse transcranial magnetic stimulation (sp-TMS) over the contralateral DLPFC and bilateral SIs of human participants at various time points, while they performed a tactile-visual delayed matching-to-sample task with a 2-second delay. sp-TMS over the contralateral DLPFC or the contralateral SI at either an sensory encoding stage [i.e. 100 ms after the onset of a vibrotactile sample stimulus (200-ms duration)] or an early maintenance stage (i.e. 300 ms after the onset), significantly impaired the accuracy of task performance; sp-TMS over the contralateral DLPFC or the ipsilateral SI at a late maintenance stage (1600 ms and 1900 ms) also significantly disrupted the performance. Furthermore, at 300 ms after the onset of the vibrotactile sample stimulus, there was a significant correlation between the deteriorating effects of sp-TMS over the contralateral SI and the contralateral DLPFC. These results imply that the DLPFC and the bilateral SIs play causal roles at distinctive stages during cross-modal working memory, while the contralateral DLPFC communicates with the contralateral SI in the early delay, and cooperates with the ipsilateral SI in the late delay. Copyright © 2018 Elsevier B.V. All rights reserved.

Stormwater Pollutant Control from Critical Source Areas

EPA Science Inventory

Critical source areas include: vehicular maintenance facilities, parking lots and bus terminals, junk and lumber yards, industrial storage facilities, loading docks and refueling areas, manufacturing sites, etc. Addressing pollutant runoff from these areas is an important compon...

Engineering study of the module/array interface for large terrestrial photovoltaic arrays

NASA Technical Reports Server (NTRS)

1977-01-01

Three major areas--structural, electrical, and maintenance--were evaluated. Efforts in the structural area included establishing acceptance criteria for materials and members, determining loading criteria, and analyzing glass modules in various framing system configurations. Array support structure design was addressed briefly. Electrical considerations included evaluation of module characteristics, intermodule connectors, array wiring, converters and lightning protection. Plant maintenance features such as array cleaning, failure detection, and module installation and replacement were addressed.

What parts of a house and yard landscape are homeowners maintaining for wildfire safety?

Treesearch

Christine Vogt; Sarah McCaffrey; Greg Winter

2010-01-01

Homeownership can be a lot of work. Interior maintenance and housekeeping; outdoor maintenance and weekly yard work–all part of the drill. The investment of time and money can be substantial depending on the size and condition of the home and acreage, or the amount of vegetation, including deciduous trees and other woody matter in a yard. Homeowners in high fire risk...

Working Memory Updating Latency Reflects the Cost of Switching between Maintenance and Updating Modes of Operation

ERIC Educational Resources Information Center

Kessler, Yoav; Oberauer, Klaus

2014-01-01

Updating and maintenance of information are 2 conflicting demands on working memory (WM). We examined the time required to update WM (updating latency) as a function of the sequence of updated and not-updated items within a list. Participants held a list of items in WM and updated a variable subset of them in each trial. Four experiments that vary…

8. ARAI Shop and maintenance building ARA627 interior view. Remains ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

8. ARA-I Shop and maintenance building ARA-627 interior view. Remains of cabinetry and electrical switch panel in one of rooms. Ineel photo no. 1-11. - Idaho National Engineering Laboratory, Army Reactors Experimental Area, Scoville, Butte County, ID

Industrial Mechanical Maintenance.

ERIC Educational Resources Information Center

Hendrix, Laborn J.

This manual was developed to assist teachers in Oklahoma in preparing students for industrial mechanical maintenance. The materials in this teacher's guide are organized in 14 units of instruction covering the following four areas: receiving and setting equipment; equipment hookup and operation; equipment layout, anchoring, and setup; and…

7 CFR 3560.303 - Housing project budgets.

Code of Federal Regulations, 2013 CFR

2013-01-01

... common area systems repairs and maintenance. (F) Snow removal. (G) Elevator repairs and maintenance.... Expenses charged to project operations, whether for management agent services or other expenses, must be... operations and are necessary to carry out successful operations. (i) Housing project expenses must not...

7 CFR 3560.303 - Housing project budgets.

Code of Federal Regulations, 2012 CFR

2012-01-01

... common area systems repairs and maintenance. (F) Snow removal. (G) Elevator repairs and maintenance.... Expenses charged to project operations, whether for management agent services or other expenses, must be... operations and are necessary to carry out successful operations. (i) Housing project expenses must not...

Contracting Maintenance Services: An Easy Question, but a Difficult Answer.

ERIC Educational Resources Information Center

Geiger, Philip E.

2003-01-01

Discusses issues involved in outsourcing school maintenance and custodial services. There are many advantages to this approach, but it has definite drawbacks. In many instances, a combination of contract and employee services works well. (SLD)

Exploring alternative methods for vegetation control and maintenance along roadsides.

DOT National Transportation Integrated Search

2003-02-01

The search for alternative methods for controlling : and maintaining vegetation along roadsides has : just begun. This work was initiated to find : alternatives to the traditional methods for roadside : vegetation maintenance that includes the use of...

Working memory training in older adults: evidence of transfer and maintenance effects.

PubMed

Borella, Erika; Carretti, Barbara; Riboldi, Francesco; De Beni, Rossana

2010-12-01

Few studies have examined working memory (WM) training-related gains and their transfer and maintenance effects in older adults. This present research investigates the efficacy of a verbal WM training program in adults aged 65-75 years, considering specific training gains on a verbal WM (criterion) task as well as transfer effects on measures of visuospatial WM, short-term memory, inhibition, processing speed, and fluid intelligence. Maintenance of training benefits was evaluated at 8-month follow-up. Trained older adults showed higher performance than did controls on the criterion task and maintained this benefit after 8 months. Substantial general transfer effects were found for the trained group, but not for the control one. Transfer maintenance gains were found at follow-up, but only for fluid intelligence and processing speed tasks. The results are discussed in terms of cognitive plasticity in older adults. (c) 2010 APA, all rights reserved).

No functional role of attention-based rehearsal in maintenance of spatial working memory representations.

PubMed

Belopolsky, Artem V; Theeuwes, Jan

2009-10-01

The present study systematically examined the role of attention in maintenance of spatial representations in working memory as proposed by the attention-based rehearsal hypothesis [Awh, E., Jonides, J., & Reuter-Lorenz, P. A. (1998). Rehearsal in spatial working memory. Journal of Experimental Psychology--Human Perception and Performance, 24(3), 780-790]. Three main issues were examined. First, Experiments 1-3 demonstrated that inhibition and not facilitation of visual processing is often observed at the memorized location during the retention interval. This inhibition was caused by keeping a location in memory and not by the exogenous nature of the memory cue. Second, Experiment 4 showed that inhibition of the memorized location does not lead to any significant impairment in memory accuracy. Finally, Experiment 5 connected current results to the previous findings and demonstrated facilitation of processing at the memorized location. Importantly, facilitation of processing did not lead to more accurate memory performance. The present results challenge the functional role of attention in maintenance of spatial working memory representations.

Short-Term Memory Maintenance of Object Locations during Active Navigation: Which Working Memory Subsystem Is Essential?

PubMed Central

Baumann, Oliver; Skilleter, Ashley J.; Mattingley, Jason B.

2011-01-01

The goal of the present study was to examine the extent to which working memory supports the maintenance of object locations during active spatial navigation. Participants were required to navigate a virtual environment and to encode the location of a target object. In the subsequent maintenance period they performed one of three secondary tasks that were designed to selectively load visual, verbal or spatial working memory subsystems. Thereafter participants re-entered the environment and navigated back to the remembered location of the target. We found that while navigation performance in participants with high navigational ability was impaired only by the spatial secondary task, navigation performance in participants with poor navigational ability was impaired equally by spatial and verbal secondary tasks. The visual secondary task had no effect on navigation performance. Our results extend current knowledge by showing that the differential engagement of working memory subsystems is determined by navigational ability. PMID:21629686

Value centric approaches to the design, operations and maintenance of wind turbines

NASA Astrophysics Data System (ADS)

Khadabadi, Madhur Aravind

Wind turbine maintenance is emerging as an unexpectedly high component of turbine operating cost, and there is an increasing interest in managing this cost. This thesis presents an alternative view of maintenance as a value-driver, and develops an optimization algorithm to evaluate the value delivered by different maintenance techniques. I view maintenance as an operation that moves the turbine to an improved state in which it can generate more power and, thus, earn more revenue. To implement this approach, I model the stochastic deterioration of the turbine in two dimensions: the deterioration rate, and the extent of deterioration, and then use maintenance to improve the state of the turbine. The value of the turbine is the difference between the revenue from to the power generation and the costs incurred in operation and maintenance. With a focus on blade deterioration, I evaluate the value delivered by implementing two different maintenance schemes, predictive maintenance and scheduled maintenance. An example of predictive maintenance technique is the use of Condition Monitoring Systems to precisely detect deterioration. I model Condition Monitoring System (CMS) of different degrees of fidelity, where a higher fidelity CMS would allow the blade state to be determined with a higher precision. The same model is then applied for the scheduled maintenance technique. The improved state information obtained from these techniques is then used to derive an optimal maintenance strategy. The difference between the value of the turbine with and without the inspection type can be interpreted as the value of the inspection. The results indicate that a higher fidelity (and more expensive) inspection method does not necessarily yield the highest value, and, that there is an optimal level of fidelity that results in maximum value. The results also aim to inform the operator of the impact of regional parameters such as wind speed, variance and maintenance costs to the optimal maintenance strategy. The contributions of this work are twofold. First, I present a practical approach to wind turbine valuation that takes operating and market conditions into account. This work should therefore be useful to wind farm operators, investors and decision makers. Second, I show how the value of a maintenance scheme can be explicitly assessed for different conditions.

An enhanced reliability-oriented workforce planning model for process industry using combined fuzzy goal programming and differential evolution approach

NASA Astrophysics Data System (ADS)

Ighravwe, D. E.; Oke, S. A.; Adebiyi, K. A.

2018-03-01

This paper draws on the "human reliability" concept as a structure for gaining insight into the maintenance workforce assessment in a process industry. Human reliability hinges on developing the reliability of humans to a threshold that guides the maintenance workforce to execute accurate decisions within the limits of resources and time allocations. This concept offers a worthwhile point of deviation to encompass three elegant adjustments to literature model in terms of maintenance time, workforce performance and return-on-workforce investments. These fully explain the results of our influence. The presented structure breaks new grounds in maintenance workforce theory and practice from a number of perspectives. First, we have successfully implemented fuzzy goal programming (FGP) and differential evolution (DE) techniques for the solution of optimisation problem in maintenance of a process plant for the first time. The results obtained in this work showed better quality of solution from the DE algorithm compared with those of genetic algorithm and particle swarm optimisation algorithm, thus expressing superiority of the proposed procedure over them. Second, the analytical discourse, which was framed on stochastic theory, focusing on specific application to a process plant in Nigeria is a novelty. The work provides more insights into maintenance workforce planning during overhaul rework and overtime maintenance activities in manufacturing systems and demonstrated capacity in generating substantially helpful information for practice.

Optimizing Maintenance Manpower for USMC F/A-18 Squadrons

DTIC Science & Technology

2016-06-01

experience level, with the requirement of keeping a standard number of aircraft operationally ready. MVP results show areas of deficit, either manpower ...MAINTENANCE MANPOWER FOR USMC F/A-18 SQUADRONS by Kevin J. Goodwin June 2016 Thesis Co-Advisors: W. Matthew Carlyle Robert F. Dell Second...REPORT TYPE AND DATES COVERED Master’s thesis 4. TITLE AND SUBTITLE OPTIMIZING MAINTENANCE MANPOWER FOR USMC F/A-18 SQUADRONS 5. FUNDING NUMBERS 6

Effect of job maintenance training program for employees with chronic disease - a randomized controlled trial on self-efficacy, job satisfaction, and fatigue.

PubMed

Varekamp, Inge; Verbeek, Jos H; de Boer, Angela; van Dijk, Frank J H

2011-07-01

Employees with a chronic physical condition may be hampered in job performance due to physical or cognitive limitations, pain, fatigue, psychosocial barriers, or because medical treatment interferes with work. This study investigates the effect of a group-training program aimed at job maintenance. Essential elements of the program are exploration of work-related problems, communication at the workplace, and the development and implementation of solutions. Participants with chronic physical diseases were randomly assigned to the intervention (N=64) or the control group (N=58). Participants were eligible for the study if they had a chronic physical disease, paid employment, experienced work-related problems, and were not on long-term 100% sick leave. Primary outcome measures were self-efficacy in solving work- and disease-related problems (14-70), job dissatisfaction (0-100), fatigue (20-140) and job maintenance measured at 4-, 8-, 12- and 24-month follow-up. We used GLM repeated measures for the analysis. After 24 months, loss to follow-up was 5.7% (7/122). Self-efficacy increased and fatigue decreased significantly more in the experimental than the control group [10 versus 4 points (P=0.000) and 19 versus 8 points (P=0.032), respectively]. Job satisfaction increased more in the experimental group but not significantly [6 versus 0 points (P=0.698)]. Job maintenance was 87% in the experimental and 91% in the control group, which was not a significant difference. Many participants in the control group also undertook actions to solve work-related problems. Empowerment training increases self-efficacy and helps to reduce fatigue complaints, which in the long term could lead to more job maintenance. Better understanding of ways to deal with work-related problems is needed to develop more efficient support for employees with a chronic disease.

Phonological similarity effect in complex span task.

PubMed

Camos, Valérie; Mora, Gérôme; Barrouillet, Pierre

2013-01-01

The aim of our study was to test the hypothesis that two systems are involved in verbal working memory; one is specifically dedicated to the maintenance of phonological representations through verbal rehearsal while the other would maintain multimodal representations through attentional refreshing. This theoretical framework predicts that phonologically related phenomena such as the phonological similarity effect (PSE) should occur when the domain-specific system is involved in maintenance, but should disappear when concurrent articulation hinders its use. Impeding maintenance in the domain-general system by a concurrent attentional demand should impair recall performance without affecting PSE. In three experiments, we manipulated the concurrent articulation and the attentional demand induced by the processing component of complex span tasks in which participants had to maintain lists of either similar or dissimilar words. Confirming our predictions, PSE affected recall performance in complex span tasks. Although both the attentional demand and the articulatory requirement of the concurrent task impaired recall, only the induction of an articulatory suppression during maintenance made the PSE disappear. These results suggest a duality in the systems devoted to verbal maintenance in the short term, constraining models of working memory.

The effect of low versus high approach-motivated positive affect on the balance between maintenance and flexibility.

PubMed

Liu, Liting; Xu, Baihua

2016-05-27

Successful goal-directed behavior in a constantly changing environment requires a balance between maintenance and flexibility. Although some studies have found that positive affect influences this balance differently than neutral affect, one recent study found that motivational intensity of positive affective states influences this balance in a cognitive set-shifting paradigm. However, working memory updating and set shifting are interrelated but distinct components of cognitive control. The present study examined the effect of low versus high approach-motivated positive affect on the balance between maintenance and flexibility in working memory. A simple cuing paradigm (the AX Continuous Performance Task) was employed, and neutral affect and high and low approach-motivated positive affect were induced using affective pictures. The results revealed that, relative to neutral affect, low approach-motivated positive affect attenuated maintenance and increased flexibility, whereas high approach-motivated positive affect promoted maintenance and decreased flexibility. These findings offer further evidence that the effects of positive affect on cognitive control are modulated by approach motivational intensity. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

Sustainable Rest Area Design and Operations

DOT National Transportation Integrated Search

2017-10-01

One way in which State Departments of Transportation (DOTs) can modernize their rest areas while reducing operations and maintenance costs is by incorporating sustainable practices into rest area design and operations. Sustainability practices that D...

A Homeowner's Guide to Septic Systems.

ERIC Educational Resources Information Center

Sponenberg, Torsten D.; And Others

This booklet provides basic information on septic system use and maintenance. Written for current and prospective homeowners, it offers guidelines for proper operation of household septic systems. In addition, (1) components of individual systems are diagrammatically explained; (2) suggestions for maintenance are outlined; (3) problem areas and…

Diesel Vehicle Maintenance Competencies.

ERIC Educational Resources Information Center

Braswell, Robert; And Others

Designed to provide a model set of competencies, this manual presents tasks which were identified by employers, employees, and teachers as important in a postsecondary diesel vehicle maintenance curriculum. The tasks are divided into seven major component areas of instruction: chassis and suspension, diesel engines, diesel fuel, electrical,…

40 CFR 52.672 - Approval of plans.

Code of Federal Regulations, 2014 CFR

2014-07-01

....672 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED... County Air Quality Maintenance Area Second 10-year Carbon Monoxide Limited Maintenance Plan submitted by... meeting the requirements of Clean Air Act section 169A and 40 CFR 51.308(e) regarding Best Available...

Literature and best practices scan : Vehicle Inspection and Maintenance (I/M) Programs

DOT National Transportation Integrated Search

2002-06-01

The state of Wisconsin operates one of the nation's most effective inspection/maintenance (I/M) programs. In Wisconsin's I/M program, vehicles registered in the Milwaukee metropolitan area are subjected to a transient emission test using the IM240 te...

Maintenance action readiness assessment plan for White Oak Creek and Melton Branch Weir Stilling Pool cleanout at Oak Ridge National Laboratory

DOE Office of Scientific and Technical Information (OSTI.GOV)

NONE

1995-08-01

This Readiness Assessment Plan has been prepared to document operational readiness for the following maintenance action: (1) removal of sediment from the White Oak Creek and Melton Branch Weir Stilling Pools and (2) disposal of the radiologically contaminated sediment in another location upstream of the weirs in an area previously contaminated by stream overflow from Melton Branch in Waste Area Grouping 2 (WAG) at Oak Ridge National Laboratory. This project is being performed as a maintenance action rather than an action under the Comprehensive Environmental Response, Compensation, and Liability Act because the risk to human health and environment is wellmore » below the US Environmental Protection Agency`s level of concern. The decision to proceed as a maintenance action was documented by an interim action proposed plan, which is included in the administrative record. The administrative record is available for review at the US Department of Energy Information Resource Center, 105 Broadway Avenue, Oak Ridge, Tennessee 37830.« less

MDOT Pavement Management System : Prediction Models and Feedback System

DOT National Transportation Integrated Search

2000-10-01

As a primary component of a Pavement Management System (PMS), prediction models are crucial for one or more of the following analyses: : maintenance planning, budgeting, life-cycle analysis, multi-year optimization of maintenance works program, and a...

Eyharts performs TVIS maintenance

NASA Image and Video Library

2008-03-03

ISS016-E-030559 (4 March 2008) --- European Space Agency (ESA) astronaut Leopold Eyharts, Expedition 16 flight engineer, works with the Treadmill Vibration Isolation System (TVIS) removed from the Zvezda Service Module floor during in-flight maintenance (IFM) on the International Space Station.

Selection criteria for using nighttime construction and maintenance operations : final report.

DOT National Transportation Integrated Search

2003-05-01

Like other state departments of transportation, the Oregon Department of Transportation (ODOT) has emphasized preservation of existing highways and bridges. Thus, ODOT has done construction and maintenance work at night in order to minimize the disru...

MTRETR MAINTENANCE SHOP, TRA653. FLOOR PLAN FOR FIRST FLOOR: MACHINE ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

MTR-ETR MAINTENANCE SHOP, TRA-653. FLOOR PLAN FOR FIRST FLOOR: MACHINE SHOP, ELECTRICAL AND INSTRUMENT SHOP, TOOL CRIB, ELECTRONIC SHOP, LOCKER ROOM, SPECIAL TEMPERATURE CONTROLLED ROOM, AND OFFICES. "NEW" ON DRAWING REFERS TO REVISION OF 11/1956 DRAWING ON WHICH AREAS WERE DESIGNATED AS "FUTURE." HUMMEL HUMMEL & JONES 810-MTR-ETR-653-A-7, 5/1957. INL INDEX NO. 532-0653-00-381-101839, REV. 2. - Idaho National Engineering Laboratory, Test Reactor Area, Materials & Engineering Test Reactors, Scoville, Butte County, ID

Human Factors Engineering. A Self-Paced Text, Lessons 36-40,

DTIC Science & Technology

1981-08-01

proposed contract does not involve ’significant human interface for operation/ maintenance /control,’ the selection guide should not be used. Turn to Page 98... work space configuration, packaging, and labeling. These are all aspects of maintenance which need to be incorporated into the original design plans... work done. An ROC is a ’Required Operational Capability’ statement that is required by the Army during the system acquisition process . Return to Page

Army Corps of Engineers: Action Needed to Ensure the Quality of Maintenance Dredging Contract Cost Data

DTIC Science & Technology

2015-09-01

planning, awarding, and administering maintenance dredging contracts with industry . 8For more information on hopper dredging, see GAO, Army Corps of...miles of waterways and hundreds of ports of harbors. The Corps conducts maintenance dredging primarily under contract with private industry to...headquarters, divisions, and districts (selected for geographic variation and range of dredging work) and dredging industry stakeholders. What

Optimal Maintenance Works for the Aborshada Road in the Western Region of Libya

NASA Astrophysics Data System (ADS)

Youssef, Medhat Abdelrahman; Elbasher, Abdelbary Altayb

2014-09-01

In this research, the condition of a road pavement was investigated for the Aborshada Road in the Gharian region of Libya to determine the optimal maintenance works. Previously, a simple engineering judgment was the only procedure followed by the Gharian municipal engineers for evaluating pavements and prioritizing maintenance. The surface condition of the Aborshada Road pavement was investigated using "the Pavement Condition Index (PCI)" visual technique. The pavement was inspected to survey the different distresses in each sample unit. Ninteen pavement distresses were classified according to the PCI standards (PCI for roads and parking lots became an ASTM standard in 2007 (D6433-07)). It was necessary to know the most common distresses of the Aborshada Road to provide assistance for the decision maker in his evaluation of the pavement and the optimum repair method to be selected. This study reveals the actual performance of the pavements and suggests the research required for dealing with the pavement maintenance problem in Libya, especially in the western region. The best maintenance alternative for Aborshada Road was Case No. 3 (Potholes, Long. & Trans. Cracking and Alligator Crack Maintenance). Also, the most common pavement distresses on the Aborshada Road were Distress Nos. 1, 3, 6, 7, 10 and 13 according to the ASTM - D6433-07 classification