These are representative sample records from Science.gov related to your search topic.
For comprehensive and current results, perform a real-time search at Science.gov.
1

Aircraft maintenance jacking problem via optimization  

Microsoft Academic Search

We address the problem of assigning forces to jacking positions in order to weaken stress at points where an aircraft maintenance operation has to be performed. We introduce a mixed-integer linear programming model and report encouraging computational experiments on historical data. Our methodology is currently under the process of industrial implementation at Airbus, where it will be used as a

MARCEL MONGEAU; C. Bes

2005-01-01

2

Problem Formulation and Resolution in Online Problem-Based Learning  

ERIC Educational Resources Information Center

This paper discusses an exploratory study to investigate the existence, and nature, of student problem formulation and resolution processes in an undergraduate online Problem-Based Learning (PBL) course in Agricultural Sciences. We report on the use of a content analysis instrument developed to measure problem formulation and resolution (PFR)…

Kenny, Richard F.; Bullen, Mark; Loftus, Jay

2006-01-01

3

Maintenance scheduling problems as benchmarks for constraint algorithms  

Microsoft Academic Search

The paper focuses on evaluating constraint satisfaction search algorithms on application based random problem instances. The\\u000a application we use is a well-studied problem in the electric power industry: optimally scheduling preventive maintenance of\\u000a power generating units within a power plant. We show how these scheduling problems can be cast as constraint satisfaction\\u000a problems and used to define the structure of

Daniel Frost; Rina Dechter

1999-01-01

4

Ground-water problems in highway construction and maintenance  

USGS Publications Warehouse

This report discusses the occurrence of ground water in relation to certain problems in highway construction and maintenance. These problems are: the subdrainage of roads; quicksand; the arrest of soil creep in road cuts; the construction of lower and larger culverts necessitated by the farm-drainage program; the prevention of failure of bridge abutments and retaining walls; and the water-cement ratio of sub-water-table concrete. Although the highway problems and suggested solutions are of general interest, they are considered with special reference to the State of Delaware, in relation to the geology of that State. The new technique of soil stabilization by electroosmosis is reviewed in the hope that it might find application here in road work and pile setting, field application by the Germans and Russians is reviewed.

Rasmussen, W. C.; Haigler, L. B.

1953-01-01

5

Maintenance of Materialized Views: Problems, Techniques, and Applications  

Microsoft Academic Search

In this paper we motivate and describe materialized views, their applications, and the problemsand techniques for their maintenance. We present a taxonomy of view maintenance problemsbased upon the class of views considered, upon the resources used to maintain the view, uponthe types of modifications to the base data that are considered during maintenance, and whetherthe technique works for all instances

Ashish Gupta; Inderpal Singh Mumick

1995-01-01

6

Approximate resolution of hard numbering problems  

SciTech Connect

We present a new method for estimating the number of solutions of constraint satisfaction problems. We use a stochastic forward checking algorithm for drawing a sample of paths from a search tree. With this sample, we compute two values related to the number of solutions of a CSP instance. First, an unbiased estimate, second, a lower bound with an arbitrary low error probability. We will describe applications to the Boolean Satisfiability problem and the Queens problem. We shall give some experimental results for these problems.

Bailleux, O.; Chabrier, J.J. [CRID Universite de Bourgogne, Dijon (France)

1996-12-31

7

ENVIRONMENTAL ISOTOPES FOR RESOLUTION OF HYDROLOGY PROBLEMS  

EPA Science Inventory

The use of environmental isotopes as tracers in the hydrosphere is increasing as analytical instrumentation improves and more applications are discovered. There exists still misconceptions on the role of isotopes in resolving hydrology problems. Naturally occurring isotopes in th...

8

Stochastic resolution of the LHC inverse problem  

E-print Network

In this work the LHC inverse problem is quantified in the Bayesian context by clarifying the relation between the mapping from the theory parameter space to experimental signature space and the inverse map. We demonstrate that, after complementing the LHC data by existing astrophysical, collider, and low energy measurements, a simple likelihood analysis is able to significantly reduce the inverse problem. The presented approach offers a robust, economic, and extendable way to extract theoretical parameters from the LHC, and other experimental, data.

Csaba Balázs; Dilani Kahawala

2009-04-01

9

Stochastic resolution of the LHC inverse problem  

E-print Network

In this work the LHC inverse problem is quantified in the Bayesian context by clarifying the relation between the mapping from the theory parameter space to experimental signature space and the inverse map. We demonstrate that, after complementing the LHC data by existing astrophysical, collider, and low energy measurements, a simple likelihood analysis is able to significantly reduce the inverse problem. The presented approach offers a robust, economic, and extendable way to extract theoretical parameters from the LHC, and other experimental, data.

Balázs, Csaba

2009-01-01

10

WORD CHOICE PROBLEM AND ANAPHORA RESOLUTION  

Microsoft Academic Search

A dictionary-based method of detecting of implicit links between words in the texts (so-called indirect anaphora) is discussed. We suggest that the same dictionary and method can be used to partially solve the word choice problem in machine translation. The method consists in using of a dictionary of \\

Alexander Gelbukh; Grigori Sidorov

11

Consumers’ resolution of credit card problems and exit behaviors  

Microsoft Academic Search

Using data from the Survey of Consumers, this study focuses on consumer’s resolution efforts with credit card problems and the likelihood of “exiting” – that is, discontinuing the use of a given credit card or of the financial institution associated with the card. Among all households with a problem, nearly two-thirds (63 percent) were able to resolve their problem, while

Jeanne M. Hogarth; Marianne A. Hilgert; Jane M. Kolodinsky

2004-01-01

12

Stochastic resolution of the LHC inverse problem  

Microsoft Academic Search

In this work the LHC inverse problem is quantified in the Bayesian context by\\u000aclarifying the relation between the mapping from the theory parameter space to\\u000aexperimental signature space and the inverse map. We demonstrate that, after\\u000acomplementing the LHC data by existing astrophysical, collider, and low energy\\u000ameasurements, a simple likelihood analysis is able to significantly reduce the\\u000ainverse

Csaba Balázs; Dilani Kahawala

2009-01-01

13

A Resolution of the Vacuum Energy Problem  

E-print Network

A new vision of the beginning and expansion of our universe has produced a solution to the vacuum energy problem (also known as "cosmological constant problem"). A new dynamic of cellular spaces and a discrete time has space being produced by a process called spatial condensation (SC). With generic energy defined as Planck's constant times the rate of cellular space production, both the vacuum energy and mass energy contents contribute to the expansion in the ratio 10^123/1, the same ratio of predicted densities by quantum theory and our astronomers. However, unlike mass energy, vacuum energy, like Casimir vacuum energy, does not carry the attribute of mass and so does not gravitate. A geometric derivation of the vacuum energy expansion rate was followed by a second derivation in terms of the evolution of the contents, from radiation to matter to dark mass (not matter). With a new definition of cosmic time, the second derivation was shown to produce exactly the same expansion rate. Free of singularities and inflation, both derivations also produced reasonable values of the cosmological parameters and the second derivation produced a good fit to the supernova Ia data with no acceleration of the expansion rate.

Charles B. Leffert

2003-08-01

14

Notes on Satisfiability-Based Problem Solving Resolution and Backtracking  

E-print Network

Notes on Satisfiability-Based Problem Solving Resolution and Backtracking David Mitchell mitchell. Corrections and comments are welcome - please send to the author at mitchell@cs.sfu.ca. In this section, we). The resolution rule for propositional clauses is illustrated by: (L A) (L B) (A B) . (1) In (1), A and B

Mitchell, David G.

15

Metered Data Analysis and Knowledge Based Methods that Reduce HVAC Operation and Maintenance Problems  

E-print Network

Recent reports have highlighted a lower than expected level of understanding by some consulting engineers and building operators concerning how to systematically track operation and maintenance problems and provide consistent advice for improving...

Haberl, J. S.; Smith, L.; Kreider, J. F.

1988-01-01

16

Predictors of children's sleep onset and maintenance problems after road traffic accidents  

PubMed Central

Background Sleep onset and maintenance problems are a frequent complaint after traumatic events in children. However, the association of traumatic experiences and disturbed sleep remains to be explained. Objective To examine the incidence of sleep onset and maintenance problems in children after road traffic accidents and identify potential predictors of sleep onset and maintenance problems, including putative psychopathological mechanisms as well as stressors affecting the family system. Method In 33 children treated for injuries after road traffic accidents, sleep and measures of psychopathology were assessed 10 days, 2 months, and 6 months after hospital admission. The predictive value of four clusters of predictor variables for children's sleep onset and maintenance problems was prospectively tested by multiple regression analyses. These clusters included socio-demographic, injury- and accident-related, and psychopathological variable clusters as well as factors reflecting stressors concerning mothers and family. Results Children suffering from posttraumatic stress reported a prolonged subjective sleep latency. The severity of sleep onset and maintenance problems was predicted by female sex and the child's as well as mothers’ posttraumatic stress disorder (PTSD) severity. Conclusions Sleep onset and maintenance problems in children after trauma appear to result from a complex interaction of multiple factors. Our findings support the transactional model of sleep-wake regulation that bears implications for the development of adequate intervention strategies. PMID:22893829

Wittmann, Lutz; Zehnder, Daniel; Jenni, Oskar G.; Landolt, Markus A.

2012-01-01

17

Notes on Satisfiability-Based Problem Solving Resolution and Backtracking  

E-print Network

Notes on Satisfiability-Based Problem Solving Resolution and Backtracking David Mitchell mitchell. If B = (L B ) and C = (L C ) are clauses (where B and C are possibly empty disjunctions of literals), then the resolvent of B and C on L is the clause (B C ). Described in set notation, the resolvent of clauses B and C

Mitchell, David G.

18

Internet-Based Recording Service Solves Maintenance Reporting Problems.  

ERIC Educational Resources Information Center

Details the response to a health threat caused by illegal wastewater disposal in Wisconsin. Traces the identification of the problem, ordinances and policies adopted to guide the remedy, and subsequent monitoring of environmental quality. (DDR)

Noah, Marilyn

2001-01-01

19

Theoretical Problems in High Resolution Solar Physics, 2  

NASA Technical Reports Server (NTRS)

The Science Working Group for the High Resolution Solar Observatory (HRSO) laid plans beginning in 1984 for a series of workshops designed to stimulate a broadbased input from the scientific community to the HRSO mission. These workshops have the dual objectives of encouraging an early start on the difficult theoretical problems in radiative transfer, magnetohydrodynamics, and plasma physics that will be posed by the HRSO data, and maintaining current discussions of results in high resolution solar studies. This workshop was the second in the series. The workshop format presented invited review papers during the formal sessions and contributed poster papers for discussions during open periods. Both are presented.

Athay, G. (editor); Spicer, D. S. (editor)

1987-01-01

20

Pediatric Enteric Feeding Techniques: Insertion, Maintenance, and Management of Problems  

SciTech Connect

Enteral feeding is considered a widespread, well-accepted means of delivering nutrition to adults and children who are unable to consume food by mouth or who need support in maintaining adequate nutrition for a variety of reasons, including acute and chronic disease states. Delivery of enteral feeding to nutritionally deprived patients may be achieved by several means. In this article, the indications and insertion of enteral access in children will be reviewed. In addition, common complications and management of problems will be discussed.

Nijs, Els L. F., E-mail: nijs@email.chop.ed [University of Pennsylvania, Department of Clinical Radiology, Children's Hospital of Philadelphia (United States); Cahill, Anne Marie, E-mail: cahill@email.chop.ed [University of Pennsylvania, Department of Radiology, Children's Hospital of Philadelphia (United States)

2010-12-15

21

Optimization as a Tool for Consistency Maintenance in Multi-Resolution Simulation  

NASA Technical Reports Server (NTRS)

The need for new approaches to the consistent simulation of related phenomena at multiple levels of resolution is great. While many fields of application would benefit from a complete and approachable solution to this problem, such solutions have proven extremely difficult. We present a multi-resolution simulation methodology that uses numerical optimization as a tool for maintaining external consistency between models of the same phenomena operating at different levels of temporal and/or spatial resolution. Our approach follows from previous work in the disparate fields of inverse modeling and spacetime constraint-based animation. As a case study, our methodology is applied to two environmental models of forest canopy processes that make overlapping predictions under unique sets of operating assumptions, and which execute at different temporal resolutions. Experimental results are presented and future directions are addressed.

Drewry, Darren T; Reynolds, Jr , Paul F; Emanuel, William R

2006-01-01

22

Pareto ant colony optimization based algorithm to solve maintenance and production scheduling problem in parallel machine case  

Microsoft Academic Search

This article presents a new method based on multiobjective Pareto ant colony optimization to resolve the joint production and maintenance scheduling problem. This method is applied to the problem previously developed in for the parallel machines case. This problem was formulated according to a bi-objective approach to find trade-off solutions between both objectives of production and maintenance. Reliability models were

A. Berrichi; M. Mezghiche; L. Amodeo; F. Yalaoui

2009-01-01

23

Solving the Aircraft Engine Maintenance Scheduling Problem Using a Multi-objective Evolutionary Algorithm  

Microsoft Academic Search

Scheduling problems are a very common research topic. This is because, for efficiency reasons, our world relies heavily on schedules and deadlines. Aircraft engine maintenance is no exception. The United States Air Force has many planes that it must keep up and running. But with the downsizing that has occurred in recent years, the number of planes that are operational

Mark P. Kleeman; Gary B. Lamont

2005-01-01

24

From event calculus to the scheduling problem. Semantics of action and temporal reasoning in aircraft maintenance  

Microsoft Academic Search

In this work we are interested in the logical and semantical aspects of reasoning about actions in a scheduling process. We present an adaptation of the event calculus of Kowalski and Sergot to the problem of determining the temporal structure of the operations that must be performed during the realization of some complex objectives. Our application domain is aircraft maintenance.

Denis Bernard; Mario Borillo; Bruno Gaume

1991-01-01

25

CONTEMPORARY SITUATIONS AND PROBLEMS OF ROAD/BRIDGE MAINTENANCE TECHNICAL COOPERATION PROJECTS  

NASA Astrophysics Data System (ADS)

It is widely acknowledged that roads are the most important transport infrastructure in developing countries. Unlike railroads requiring organizations and systems to operate, individuals can drive on roads. Almost all donors have assisted developing countr ies for new road constructions and rehabilitations. Report of insufficient maintenance in the developing countries, however, has been notable. As a result of the maintenance problems, deterioration of roads is pr ogressing with speed more than expected. It causes the traffic safety problems and an obstacle of economic development. JICA and other donors recognize that this situation can not be overlooked and reci pient countries are increasing their expectation of obtaining assistance on road/bridge maintenance. JICA has implemented over 10 technical cooper ation projects for road/b ridge maintenance in developing countries. JICA conducted a study to review those projects comprehensively. That study aims at obtaining problems, lessons learned and discussion material for policy making and method improvement for future similar pr ojects. This report introduces the outline of the study including additional analysis and recommendations by the authors.

Nishimiya, Noriaki; Sanui, Kazumasa; Mizota, Yuzo

26

Adapting problem-solving therapy for depressed older adults in methadone maintenance treatment  

PubMed Central

Late life depression is prevalent in older adults who are dependent on opiates. Depressive disorders among opiate abusers have detrimental effects on their well-being and ability to refrain from illegal drugs. There are numerous barriers to the provision of appropriate mental health care to older adults receiving methadone maintenance treatment. This article focuses on problem solving therapy (PST) and presents evidence that PST may be a promising non-pharmacological treatment for older methadone clients with comorbid depressive disorders that can be applied within the staffing and resource limits of methadone maintenance treatment facilities. The advantages of PST relative to other behavioral therapies for this population are based on evidence that PST is less cognitively demanding for an older adult population with mood and substance use disorders. A properly modified PST for an older adult substance dependent population with subsyndromal or diagnosed depression may be a viable option for methadone maintenance programs with limited resources. PMID:21036509

Rosen, Daniel; Morse, Jennifer Q; Reynolds, Charles F

2011-01-01

27

Adapting problem-solving therapy for depressed older adults in methadone maintenance treatment.  

PubMed

Late-life depression is prevalent in older adults who are dependent on opiates. Depressive disorders among opiate abusers have detrimental effects on their well-being and ability to refrain from illegal drugs. There are numerous barriers to the provision of appropriate mental health care to older adults receiving methadone maintenance treatment. This article focuses on problem-solving therapy (PST) and presents evidence that PST may be a promising nonpharmacological treatment for older methadone clients with comorbid depressive disorders that can be applied within the staffing and resource limits of methadone maintenance treatment facilities. The advantages of PST relative to other behavioral therapies for this population are based on evidence that PST is less cognitively demanding for an older adult population with mood and substance use disorders. A properly modified PST for an older adult substance-dependent population with subsyndromal or diagnosed depression may be a viable option for methadone maintenance programs with limited resources. PMID:21036509

Rosen, Daniel; Morse, Jennifer Q; Reynolds, Charles F

2011-03-01

28

Bi-objective optimization algorithms for joint production and maintenance scheduling: application to the parallel machine problem  

Microsoft Academic Search

This paper deals with the joint production and maintenance scheduling problem according to a new bi-objective approach. This\\u000a method allows the decision maker to find compromise solutions between the production objectives and maintenance ones. Reliability\\u000a models are used to take into account the maintenance aspect of the problem. The aim is to simultaneously optimize two criteria:\\u000a the minimization of the

A. Berrichi; L. Amodeo; F. Yalaoui; E. Châtelet; M. Mezghiche

2009-01-01

29

High-resolution structure prediction and the crystallographic phase problem.  

PubMed

The energy-based refinement of low-resolution protein structure models to atomic-level accuracy is a major challenge for computational structural biology. Here we describe a new approach to refining protein structure models that focuses sampling in regions most likely to contain errors while allowing the whole structure to relax in a physically realistic all-atom force field. In applications to models produced using nuclear magnetic resonance data and to comparative models based on distant structural homologues, the method can significantly improve the accuracy of the structures in terms of both the backbone conformations and the placement of core side chains. Furthermore, the resulting models satisfy a particularly stringent test: they provide significantly better solutions to the X-ray crystallographic phase problem in molecular replacement trials. Finally, we show that all-atom refinement can produce de novo protein structure predictions that reach the high accuracy required for molecular replacement without any experimental phase information and in the absence of templates suitable for molecular replacement from the Protein Data Bank. These results suggest that the combination of high-resolution structure prediction with state-of-the-art phasing tools may be unexpectedly powerful in phasing crystallographic data for which molecular replacement is hindered by the absence of sufficiently accurate previous models. PMID:17934447

Qian, Bin; Raman, Srivatsan; Das, Rhiju; Bradley, Philip; McCoy, Airlie J; Read, Randy J; Baker, David

2007-11-01

30

Classical Machian Resolution of the Spacetime Reconstruction Problem  

E-print Network

Following from a question of Wheeler, why does the Hamiltonian constraint ${\\cal H}$ of GR have the particular form it does? A first answer, by Hojman, Kucha\\v{r} and Teitelboim, is that using embeddability into spacetime as a principle gives the form of ${\\cal H}$. The present paper culminates a second Machian answer - initially by Barbour, Foster and \\'{o} Murchadha - in which space but not spacetime are assumed. Thus this answer is additionally a classical-level resolution of the spacetime reconstruction problem. In this approach, mere consistency imposed by the Dirac procedure whittles down a general ansatz to one of four alternatives: Lorentzian, Galilean, or Carrollian relativity, or constant mean curvature slicing. These arise together as the different ways to kill off a 4-factor obstruction term. It is novel for such an alternative to arise from principles of dynamics considerations (in contrast with the historical form of the dichotomy between universal local Galilean or Lorentzian relativity). It is furthermore intriguing that it gives constant mean curvature slicing - familiar from York's work on the initial value problem -- as a further option on a similar footing. That is related to a number of recent alternative theories/formulations of GR known collectively as `shape dynamics'. The original work did not treat this with Poisson brackets and a proper systematic Dirac-type analysis; we rectify this in this paper. It is also the first demonstration of how this approach solves the classical spacetime reconstruction problem via `hypersurface tensor dual nationality' and what can be interpreted as embedding equations arising.

Edward Anderson; Flavio Mercati

2013-11-26

31

Lightweight Relevance Filtering for Machine-Generated Resolution Problems  

E-print Network

extensive tests with a set of 285 such problems (153 small, 132 large). Vampire does well on our problem set problem, which is more realistic for user interaction, Vampire's success rate drops to 53 percent. (See

Paulson, Lawrence C.

32

Hybrid particle swarm optimization for hybrid flowshop scheduling problem with maintenance activities.  

PubMed

A hybrid algorithm which combines particle swarm optimization (PSO) and iterated local search (ILS) is proposed for solving the hybrid flowshop scheduling (HFS) problem with preventive maintenance (PM) activities. In the proposed algorithm, different crossover operators and mutation operators are investigated. In addition, an efficient multiple insert mutation operator is developed for enhancing the searching ability of the algorithm. Furthermore, an ILS-based local search procedure is embedded in the algorithm to improve the exploitation ability of the proposed algorithm. The detailed experimental parameter for the canonical PSO is tuning. The proposed algorithm is tested on the variation of 77 Carlier and Néron's benchmark problems. Detailed comparisons with the present efficient algorithms, including hGA, ILS, PSO, and IG, verify the efficiency and effectiveness of the proposed algorithm. PMID:24883414

Li, Jun-qing; Pan, Quan-ke; Mao, Kun

2014-01-01

33

Hybrid Particle Swarm Optimization for Hybrid Flowshop Scheduling Problem with Maintenance Activities  

PubMed Central

A hybrid algorithm which combines particle swarm optimization (PSO) and iterated local search (ILS) is proposed for solving the hybrid flowshop scheduling (HFS) problem with preventive maintenance (PM) activities. In the proposed algorithm, different crossover operators and mutation operators are investigated. In addition, an efficient multiple insert mutation operator is developed for enhancing the searching ability of the algorithm. Furthermore, an ILS-based local search procedure is embedded in the algorithm to improve the exploitation ability of the proposed algorithm. The detailed experimental parameter for the canonical PSO is tuning. The proposed algorithm is tested on the variation of 77 Carlier and Néron's benchmark problems. Detailed comparisons with the present efficient algorithms, including hGA, ILS, PSO, and IG, verify the efficiency and effectiveness of the proposed algorithm. PMID:24883414

Li, Jun-qing; Pan, Quan-ke; Mao, Kun

2014-01-01

34

Automatic resolution of the three-points geological problem  

NASA Astrophysics Data System (ADS)

The problem of three points, or 3P problem, is the basic geometrical reference of numerous geological structures. We propose a simple Microsoft Excel spreadsheet program that determines from three georeferenced points the strike and dip of the plane that contains them. Practical examples showing the application in Google Earth and LIDAR data are presented.

Martinez-Torres, Luis M.; Lopetegui, Ane; Eguiluz, Luis

2012-05-01

35

A high-resolution numerical technique for inviscid gas-dynamic problems with weak solutions  

NASA Astrophysics Data System (ADS)

The shock resolution of Harten's (1982) second-order explicit method for one-dimensional hyperbolic conservation laws is investigated for a two-dimensional gas-dynamic problem. The possible extension to a high resolution implicit method for both one- and two-dimensional problems is also investigated. Applications of Harten's method to the quasi-one-dimensional nozzle problem with two nozzle shapes (divergent and convergent-divergent) and the two-dimensional shock-reflection problem resulted in high shock resolution steady-state numerical solutions.

Yee, H. C.; Warming, R. F.; Harten, A.

36

Maintenance problems associated with the operation of the F402 /Pegasus/ engine in the AV-8A /Harrier/ aircraft  

NASA Technical Reports Server (NTRS)

The U.S. Marine Corp (USMC) has been operating the only V/STOL attack aircraft in the western world since 1971. Some of the maintenance problems experienced are related to the unique V/STOL design criteria of the Pegasus engine. However, the major part of the required maintenance effort is found to involve the more conventional engine problems. A description of the aircraft engine is provided and the problems resulting from V/STOL design demands are examined. Attention is given to the fuel system control, the engine air bleed, foreign object damage to the hp compressor, and the engine exhaust system.

Stanley, C. W.; Hood, W. E.

1981-01-01

37

Clarification process: Resolution of decision-problem conditions  

NASA Technical Reports Server (NTRS)

A model of a general process which occurs in both decisionmaking and problem-solving tasks is presented. It is called the clarification model and is highly dependent on information flow. The model addresses the possible constraints of individual indifferences and experience in achieving success in resolving decision-problem conditions. As indicated, the application of the clarification process model is only necessary for certain classes of the basic decision-problem condition. With less complex decision problem conditions, certain phases of the model may be omitted. The model may be applied across a wide range of decision problem conditions. The model consists of two major components: (1) the five-phase prescriptive sequence (based on previous approaches to both concepts) and (2) the information manipulation function (which draws upon current ideas in the areas of information processing, computer programming, memory, and thinking). The two components are linked together to provide a structure that assists in understanding the process of resolving problems and making decisions.

Dieterly, D. L.

1980-01-01

38

The maintenance of tornadoes observed with high-resolution mobile Doppler radars.  

E-print Network

??High-resolution dual-Doppler wind syntheses and ensemble Kalman filter data assimilation experiments performed using Doppler on Wheels velocity data collected in four tornadic supercells are examined… (more)

Marquis, James

2010-01-01

39

Maintenance Therapy  

MedlinePLUS

Maintenance Therapy Periodontal disease is a chronic (long-lasting) problem. It can return if you don't ... pay careful attention to oral hygiene at home. Maintenance usually includes visits with your dentist, periodontist or ...

40

OPTIMIZATION AS A TOOL FOR CONSISTENCY MAINTENANCE IN MULTI-RESOLUTION SIMULATION  

E-print Network

benefit from a complete and approachable solution to this problem, such solutions have proven extremely of inverse modeling and spacetime constraint-based animation. As a case study, our methodology is applied automated approach. We explore the application of technology similar to that used in the graphics animation

Brogan, David

41

High Resolution Doppler Imager FY 2001,2002,2003 Operations and Algorithm Maintenance  

NASA Technical Reports Server (NTRS)

During the performance period of this grant HRDI (High Resolution Doppler Imager) operations remained nominal. The instrument has suffered no loss of scientific capability and operates whenever sufficient power is available. Generally, there are approximately 5-7 days per month when the power level is too low to permit observations. The daily latitude coverage for HRDI measurements in the mesosphere, lower thermosphere (MLT) region are shown.It shows that during the time of this grant, HRDI operations collected data at a rate comparable to that achieved during the UARS (Upper Atmosphere Research Satellite) prime mission (1991 -1995). Data collection emphasized MLT wind to support the validation efforts of the TIDI instrument on TIMED, therefore fulfilling one of the primary objectives of this phase of the UARS mission. Skinner et al., (2003) present a summary of the instrument performance during this period.

Skinner, Wilbert

2004-01-01

42

A High-Resolution Hybrid Compact-ENO Scheme for Shock-Turbulence Interaction Problems  

Microsoft Academic Search

A class of upwind-biased finite-difference schemes with a compact stencil is proposed in general form, suitable for the time-accurate direct numerical simulation of fluid-convection problems. These schemes give uniformly high approximation order and allow for a spectral-like wave resolution while dissipating non-resolved wavenumbers. When coupled with an essentially non-oscillatory scheme near discontinuities, the compact schemes become shock-capturing and their resolution

N. A. Adams; K. Shariff

1996-01-01

43

Resolution of intimate partner violence and child behavior problems after investigation for suspected child maltreatment  

PubMed Central

Objective To describe longitudinal change in child behavior problems associated with resolution of intimate partner violence (IPV) after an investigation for suspected child maltreatment. Design Retrospective cohort study. Data Source The National Survey of Child and Adolescent Well-Being, a nationally representative longitudinal sample of U.S. households investigated for suspected child maltreatment. Participants 320 school-aged NSCAW subjects with caregiver-reported IPV in the year prior to baseline interview. Caregivers were interviewed an average of 3, 20, 36, and 81 months following investigation. Main Exposure Resolution vs. persistence of baseline IPV. Persistence defined by report of IPV during any follow-up interview. Outcome Measures Clinically significant internalizing or externalizing child behavior problems. Results 44.6% of caregivers reporting IPV at the baseline interview reported persistent IPV. After adjusting for significant covariates, IPV resolution was associated with an 11.9% reduction in internalizing problems by 81 months (p=0.03); IPV persistence was associated with persistence in baseline problems. IPV resolution was associated with an 18.5% reduction in externalizing problems by 20 months that was sustained at 36 and 81 months (all p<0.05). IPV persistence was associated with a steady but non-significant increase in externalizing behavior problems over 81 months (10.1%, p=0.07). Adjusted relative risk of internalizing and externalizing behavior problems 81 months following CPS investigation for children exposed to persistent vs resolved IPV was 1.79 (0.91, 3.52) and 1.88 (1.12, 3.18), respectively. Conclusions Resolution of IPV after a CPS investigation for suspected child maltreatment is associated with meaningful, sustained reductions in clinically significant child behavior problems. PMID:23318576

Thomas, Andrea M.; Cook, Lawrence J.; Keenan, Heather T.

2014-01-01

44

A high-resolution hybrid compact-ENO scheme for shock-turbulence interaction problems  

SciTech Connect

A class of upwind-biased finite-difference schemes with a compact stencil is proposed in general form, suitable for the time-accurate direct numerical simulation of fluid-convection problems. These schemes give uniformly high approximation order and allow for a spectral-like wave resolution while dissipating non-resolved wavenumbers. When coupled with an essentially non-oscillatory scheme near discontinuities, the compact schemes become shock-capturing and their resolution properties are preserved. The derivation of the compact schemes is discussed in detail. Their convergence and resolution properties as well as numerical stability are analyzed. Upwinding and coupling procedures are described. Application examples for typical non-linear wave interaction problems are given. 50 refs., 17 figs., 7 tabs.

Adams, N.A.; Shariff, K. [NASA Ames Research Center, Moffett Field, CA (United States)] [NASA Ames Research Center, Moffett Field, CA (United States)

1996-08-01

45

Solving the 0-1 Multidimensional Knapsack Problem with Resolution Search  

E-print Network

We propose an exact method which combines the resolution search and branch & bound algorithms for solving the 0?1 Multidimensional Knapsack Problem. This algorithm is able to prove large?scale strong correlated instances. The optimal values of the 10 constraint, 500 variable instances of the OR-Library are exposed. These values were previously unknown.

Boussier, Sylvain; Vimont, Yannick; Hanafi, Said; Michelon, Philippe

2009-01-01

46

The synaptic maintenance problem: membrane recycling, Ca2+ homeostasis and late onset degeneration.  

PubMed

Most neurons are born with the potential to live for the entire lifespan of the organism. In addition, neurons are highly polarized cells with often long axons, extensively branched dendritic trees and many synaptic contacts. Longevity together with morphological complexity results in a formidable challenge to maintain synapses healthy and functional. This challenge is often evoked to explain adult-onset degeneration in numerous neurodegenerative disorders that result from otherwise divergent causes. However, comparably little is known about the basic cell biological mechanisms that keep normal synapses alive and functional in the first place. How the basic maintenance mechanisms are related to slow adult-onset degeneration in different diseasesis largely unclear. In this review we focus on two basic and interconnected cell biological mechanisms that are required for synaptic maintenance: endomembrane recycling and calcium (Ca(2+)) homeostasis. We propose that subtle defects in these homeostatic processes can lead to late onset synaptic degeneration. Moreover, the same basic mechanisms are hijacked, impaired or overstimulated in numerous neurodegenerative disorders. Understanding the pathogenesis of these disorders requires an understanding of both the initial cause of the disease and the on-going changes in basic maintenance mechanisms. Here we discuss the mechanisms that keep synapses functional over long periods of time with the emphasis on their role in slow adult-onset neurodegeneration. PMID:23829673

Bezprozvanny, Ilya; Hiesinger, Peter Robin

2013-01-01

47

The Differential Association between Change Request Qualities and Resistance, Problem Resolution, and Relationship Satisfaction  

PubMed Central

Although research supports the negative sequelae of the “demand-withdrawal” pattern, research is scant on the impact of “non-demanding” change requests (e.g., specific, increasing, and “we” requests). We hypothesize that such change requests will be associated with less partner withdrawal/resistance, better problem resolution, and greater relationship satisfaction. Seventy-two conversations between couples who were recruited through random digit dialing were coded for change request qualities. Results indicate that wife specific and “we” requests led to less husband resistance, and husband increasing and “we” requests led to less wife resistance. Greater percentages of wife and husband specific and “we” requests were related to better problem resolution in the conversation, and greater percentages of wife specific and “we” requests were related to greater wife satisfaction. Research and clinical implications are detailed. PMID:19685982

Mitnick, Danielle M.; Heyman, Richard E.; Malik, Jill; Smith Slep, Amy M.

2009-01-01

48

Wilkinson Microwave Anisotropy Probe (WMAP) Battery Operations Problem Resolution Team (PRT)  

NASA Technical Reports Server (NTRS)

The NASA Technical Discipline Fellow for Electrical Power, was requested to form a Problem Resolution Team (PRT) to help assess the health of the flight battery that is currently operating aboard NASA's Wilkinson Microwave Anisotropy Probe (WMAP) and provide recommendations for battery operations to mitigate the risk of impacting science operations for the rest of the mission. This report contains the outcome of the PRT's assessment.

Keys, Denney J.

2010-01-01

49

Joint application of AI techniques, PRA and disturbance analysis methodology to problems in the maintenance and design of nuclear power plants. Final report  

SciTech Connect

This final report summarizes the accomplishments of a two year research project entitled ``Joint Application of Artificial Intelligence Techniques, Probabilistic Risk Analysis, and Disturbance Analysis Methodology to Problems in the Maintenance and Design of Nuclear Power Plants. The objective of this project is to develop and apply appropriate combinations of techniques from artificial intelligence, (AI), reliability and risk analysis and disturbance analysis to well-defined programmatic problems of nuclear power plants. Reactor operations issues were added to those of design and maintenance as the project progressed.

Okrent, D.

1989-03-01

50

Joint application of AI techniques, PRA and disturbance analysis methodology to problems in the maintenance and design of nuclear power plants  

SciTech Connect

This final report summarizes the accomplishments of a two year research project entitled Joint Application of Artificial Intelligence Techniques, Probabilistic Risk Analysis, and Disturbance Analysis Methodology to Problems in the Maintenance and Design of Nuclear Power Plants. The objective of this project is to develop and apply appropriate combinations of techniques from artificial intelligence, (AI), reliability and risk analysis and disturbance analysis to well-defined programmatic problems of nuclear power plants. Reactor operations issues were added to those of design and maintenance as the project progressed.

Okrent, D.

1989-03-01

51

Heavy Ion Beam in Resolution of the Critical Point Problem for Uranium and Uranium Dioxide  

E-print Network

Important advantages of heavy ion beam (HIB) irradiation of matter are discussed in comparison with traditional sources - laser heating, electron beam, electrical discharge etc. High penetration length (~ 10 mm) is of primary importance for investigation of dense matter properties. This gives an extraordinary chance to reach the uniform heating regime when HIB irradiation is being used for thermophysical property measurements. Advantages of HIB heating of highly-dispersive samples are claimed for providing free and relatively slow quasi-isobaric heating without fast hydrodynamic expansion of heated sample. Perspective of such HIB application are revised for resolution of long-time thermophysical problems for uranium and uranium-bearing compounds (UO2). The priorities in such HIB development are stressed: preferable energy levels, beam-time duration, beam focusing, deposition of the sample etc.

Iosilevskiy, Igor

2010-01-01

52

Heavy Ion Beam in Resolution of the Critical Point Problem for Uranium and Uranium Dioxide  

E-print Network

Important advantages of heavy ion beam (HIB) irradiation of matter are discussed in comparison with traditional sources - laser heating, electron beam, electrical discharge etc. High penetration length (~ 10 mm) is of primary importance for investigation of dense matter properties. This gives an extraordinary chance to reach the uniform heating regime when HIB irradiation is being used for thermophysical property measurements. Advantages of HIB heating of highly-dispersive samples are claimed for providing free and relatively slow quasi-isobaric heating without fast hydrodynamic expansion of heated sample. Perspective of such HIB application are revised for resolution of long-time thermophysical problems for uranium and uranium-bearing compounds (UO2). The priorities in such HIB development are stressed: preferable energy levels, beam-time duration, beam focusing, deposition of the sample etc.

Igor Iosilevskiy; Victor Gryaznov

2010-05-23

53

Minisuperspace model of Machian Resolution of Problem of Time. I. Isotropic Case  

E-print Network

A local resolution to the Problem of Time that is Machian and was previously demonstrated for various relational mechanics models is here shown to work for a more widely studied quantum cosmological model. Namely, closed isotropic minisuperspace GR with minimally-coupled scalar field matter. This uses work firstly along the lines of Barbour's at the classical level. Secondly, it uses a Machianized version of the Semiclassical Approach to Quantum Cosmology. Finally, it uses a combined Machianized version of a combined Semiclassical Histories Timeless Records scheme along the lines of Halliwell's work. This program's goal is the treatment of inhomogeneous perturbations about the present paper's model, drawing also qualitatively from the relational mechanics examples since these have nontrivial notions of inhomogeneity/structure (clumping) as well as nontrivial linear constraints.

Edward Anderson

2013-07-07

54

Regular methods of solution of ill-posed problems for remote sensing of Earth atmosphere using high-resolution spectrometry  

Microsoft Academic Search

General regular methods of solution of ill-posed inverse problems and their application to geophysical sounding of Earth interior were developing during long time at Institute of Mathematics and Mechanics of Ural Branch of RAS. In this paper we apply the developed regular methods of solution of the inverse problems for retrieval of vertical temperature profiles from high-resolution thermal emission spectra

V. V. Vasin; K. G. Gribanov; V. I. Zakharov; E. N. Akimova; G. Ya. Perestoronina; L. Yu. Timerkhanova

2006-01-01

55

The Differential Effects of Two Strategies on the Acquisition, Maintenance, and Generalization of Mathematical Word Problem Solving by Students with Mild Disabilities and At-Risk Students.  

ERIC Educational Resources Information Center

This study examined the differential effects of two instructional strategies, an explicit schema-based strategy and a general cognitive strategy, on the acquisition, maintenance, and generalization of mathematical word problem solving by students with mild disabilities and at-risk students. Twenty-three second, third, fourth, and fifth graders…

Jitendra, Asha; And Others

56

Application of CFD Analysis to Design Support and Problem Resolution for ASRM and RSRM  

NASA Technical Reports Server (NTRS)

The use of Navier-Stokes CFD codes to predict the internal flow field environment in a solid rocket motor is a very important analysis element during the design phase of a motor development program. These computational flow field solutions uncover a variety of potential problems associated with motor performance as well as suggesting solutions to these problems. CFD codes have also proven to be of great benefit in explaining problems associated with operational motors such as in the case of the pressure spike problem with the STS-54B flight motor. This paper presents results from analyses involving both motor design support and problem resolution. The issues discussed include the fluid dynamic/mechanical stress coupling at field joints relative to significant propellant deformations, the prediction of axial and radial pressure gradients in the motor associated with motor performance and propellant mechanical loading, the prediction of transition of the internal flow in the motor associated with erosive burning, the accumulation of slag at the field joints and in the submerged nozzle region, impingement of flow on the nozzle nose, and pressure gradients in the nozzle region of the motor. The analyses presented in this paper have been performed using a two-dimensional axisymmetric model. Fluent/BFC, a three dimensional Navier-Stokes flow field code, has been used to make the numerical calculations. This code utilizes a staggered grid formulation along with the SIMPLER numerical pressure-velocity coupling algorithm. Wall functions are used to represent the character of the viscous sub-layer flow, and an adjusted k-epsilon turbulence model especially configured for mass injection internal flows, is used to model the growth of turbulence in the motor port. Conclusions discussed in this paper consider flow field effects on the forward, center, and aft propellant grains except for the head end star grain region of the forward propellant segment. The field joints and the submerged nozzle are discussed as well. Conclusions relative to both the design evaluation of the ASRM and the RSRM scenarios explaining the pressure spikes were based on the flow field solutions presented in this paper.

Dill, Richard A.; Whitesides, R. Harold

1993-01-01

57

Problem of mixtures with known compositions and IRONFLEA method for multivariate curve resolution.  

PubMed

A special case of gray spectral data systems [(a) F.-T. Chau, Y.-Z. Liang, J. Gao, X.-G. Shao (Eds.), Chemometrics: From Basics to Wavelet Transform, Chemical Analysis Series, vol. 164, John Wiley & Sons, Inc., 2004; (b) Y.Z. Liang, O.M. Kvalheim, R. Manne, Chemom. Intell. Lab. Syst. 18 (1993) 235-250] is discussed here and the least-squares method for the multivariate curve resolution (MCR) named IRONFLEA is proposed. The system under consideration is the bilinear spectral data of the samples with known chemical compositions and unknown concentration matrix. If the spectra of samples (A(i)) and (Q+A(i)) (i = 1, ..., n, n > or = 2) are available, then the spectrum and the concentrations of Q could be found and the solution is unique. A practical chemical model for this problem could be mixtures, polymers, peptides, oligosaccharides, or supramolecular formations made of a limited number of monomeric components. In the cases of polymeric or oligomeric samples the spectral contributions and the concentrations of the particular monomeric units are extracted. The method is capable of extracting chemically meaningful spectra of components. The method is implemented in SAS IML code and tested for the deconvolution of spectra of polymers made of styrene derivatives with known monomeric compositions [(a) H. Fenniri, L. Ding, A.E. Ribbe, Y. Zyrianov, J. Am. Chem. Soc. 123 (2001) 8151-8152; (b) H. Fenniri, S. Chun, L. Ding, Y. Zyrianov, K. Hallenga, J. Am. Chem. Soc. 125 (2003) 10546-10560]. The method performs calculations fast enough to allow the incorporation of leave-one-out outlier removal procedure. PMID:17936106

Zyrianov, Yegor

2007-10-17

58

Defer Maintenance, Invite Disaster  

ERIC Educational Resources Information Center

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, and inflation.…

Bowman, William W.

1977-01-01

59

Problems in identifying predictors and correlates of weight loss and maintenance: implications for weight control therapies based on behaviour change.  

PubMed

Weight management is a dynamic process, with a pre-treatment phase, a treatment (including process) phase and post-treatment maintenance, and where relapse is possible during both the treatment and maintenance. Variability in the statistical power of the studies concerned, heterogeneity in the definitions, the complexity of obesity and treatment success, the constructs and measures used to predict weight loss and maintenance, and an appreciation of who and how many people achieve it, make prediction difficult. In models of weight loss or maintenance: (i) predictors explain up to 20-30% of the variance; (ii) many predictors are the sum of several small constituent variables, each accounting for a smaller proportion of the variance; (iii) correlational or predictive relationships differ across study populations; (iv) inter-individual variability in predictors and correlates of outcomes is high and (v) most of the variance remains unexplained. Greater standardization of predictive constructs and outcome measures, in more clearly defined study populations, tracked longitudinally, is needed to better predict who sustains weight loss. Treatments need to develop a more individualized approach that is sensitive to patients' needs and individual differences, which requires measuring and predicting patterns of intra-individual behaviour variations associated weight loss and its maintenance. This information will help people shape behaviour change solutions to their own lifestyle needs. PMID:21535362

Stubbs, J; Whybrow, S; Teixeira, P; Blundell, J; Lawton, C; Westenhoefer, J; Engel, D; Shepherd, R; McConnon, A; Gilbert, P; Raats, M

2011-09-01

60

Integrated production and maintenance scheduling  

E-print Network

. This on-line information can be utilized to make more informed decisions about the production and maintenance scheduling problem. The integrated maintenance and production scheduling problem on a single machine is formulated for the single and multiple job...

Whitaker, Laura Oakes

2012-06-07

61

Application of the genetic algorithm for global scheduling and a single machine scheduling problem with periodic maintenance and semiresumable jobs  

E-print Network

. The second problem considered here is the job shop scheduling problem where the objective is to minimize the makespan. Local search techniques which have been applied to this problem are discussed with the emphasis being on genetic algorithms. A genetic...

Graves, Gregory Howard

2012-06-07

62

The Effect of Conflict Resolution Training on Children's Behavioral Problems in Shiraz, Southern Iran: A Randomized Controlled Trial  

PubMed Central

Background: There is evidence that marital problems can contribute to child behavior problems. In fact, the way that parents solve their conflicts, such as aggression, physical violence, and poor communication skills, can eventually culminate in aggression and emotional problems in children. This study aimed to evaluate the effectiveness of conflict resolution training on children’s behavioral problems in a sample of Iranian couples. Methods: This randomized controlled trial study was carried out on the couples who referred to counseling centers in Shiraz, Iran. In this study, 56 couples were selected through convenience sampling and assigned to an intervention and a control group. The intervention group received 10 sessions of communication skills training. All the participants filled out conflict resolution questionnaire and Child Behavior Problem Checklist (CBCL). To analyze the data we used the SPSS statistical software (version 16), using repeated measurement test, paired t-test, and independent t test. Results: In this study, no statistically significant differences were found between the two groups regarding the demographic characteristics. Also, no significant difference was observed between the two groups regarding the mean score of child behavior problems. Besides, a significant difference was found in the intervention group’s mean score of marital conflict in post-test compared to the pre-test; however, no such trend was observed in the control group. Conclusion: Conflict resolution skill training was effective in reducing marital conflict. Also, it showed a slight reduction in the score of child behavior problems after the intervention. But this reduction wasn’t statisticaly significant. Trial Registration Number: IRCT201109112812N2 PMID:25349861

Soleimani, Sara; Sharif, Farkhondeh; Mani, Arash; Keshavarzi, Sareh

2014-01-01

63

The Geometrization of Matter Proposal in the Barrett-Crane Model and Resolution of Cosmological Problems  

SciTech Connect

We give an overview of the current issues in early universe cosmology and consider the potential resolution of these issues in an as yet nascent spin foam cosmology. The model is the Barrett-Crane Model for quantum gravity along with a generalization of manifold complexes to complexes including conical singularities.

Alexander, Stephon

2003-07-15

64

Conflict resolution problems for air traffic management systems solved with mixed integer programming  

Microsoft Academic Search

This paper considers the problem of solving conflicts arising among several aircraft that are assumed to move in a shared airspace. Aircraft can not get closer to each other than a given safety distance in order to avoid possible conflicts between different airplanes. For such system of multiple aircraft, we consider the path planning problem among given waypoints avoiding all

Lucia Pallottino; Eric M. Feron; Antonio Bicchi

2002-01-01

65

Resolution Strategies for the Finite-Element-Based Solution of the ECG Inverse Problem  

PubMed Central

Successful employment of numerical techniques for the solution of forward and inverse ECG problems requires the ability to both quantify and minimize approximation errors introduced as part of the discretization process. Our objective is to develop discretization and refinement strategies involving hybrid-shaped finite elements so as to minimize approximation errors for the ECG inverse problem. We examine both the ill-posedness of the mathematical inverse problem and the ill-conditioning of the discretized system in order to propose strategies specifically designed for the ECG inverse problem. We demonstrate that previous discretization and approximation strategies may worsen the properties of the inverse problem approximation. We then demonstrate the efficacy of our strategies on both a simplified and a realistic 2-D torso model. PMID:19535314

Kirby, Robert M.; Johnson, Chris R.

2010-01-01

66

An overview of the installation, operation, maintenance, and problems associated with electrical submersible pump system in Central Sumatra, Indonesia  

SciTech Connect

P.T. Caltex Pacific Indonesia, operating under a Production Sharing Contract with Pertamina, the State Oil Company of Indonesia, has a production capacity in excess of 750,000 BOPD (119,240m/sup 3/). The company's operations are mainly centered in Riau Province in Central Sumatra, an area of virgin tropical rain forests and is relatively quite under developed. The company has in excess of 1000 electrical submersible pumping units in operation to provide the major method of artificial lift for its operations. All aspects of the provision of electric power and the installation, operation and maintenance of the electric submersible pumping units are conducted by company personnel.

Tabe, F.L.L.

1984-09-01

67

The Wheeler - DeWitt Quantum Geometrodynamics: its fundamental problems and tendencies of their resolution  

E-print Network

The paper is devoted to fundamental problems of the Wheeler - DeWitt quantum geometrodynamics, which was the first attempt to apply quantum principles to the Universe as a whole. Our purpose is to find out the origin of these problems and follow up their consequences. We start from Dirac generalized Hamiltonian dynamics as a cornerstone on which the Wheeler - DeWitt theory is based. We remind the main statements of the famous DeWitt's paper of 1967 and discuss the flaws of the theory: the well-known problem of time, the problem of Hilbert space and others. In the concluding part of the paper we consider new tendencies and approaches to quantum geometrodynamics appeared in the last decade.

T. P. Shestakova

2008-01-31

68

Parent-Child Interaction Therapy with Behavior Problem Children: Maintenance of Treatment Effects in the School Setting.  

ERIC Educational Resources Information Center

Describes follow-up assessments conducted with 84 children who had completed Parent-Child Interaction Therapy (PCIT), a behavioral family therapy for preschool children with disruptive behavior problems. When compared with control groups, subjects improved to within the normal range of conduct problems and social competence, but by the 18-month…

Funderburk, Beverly W.; Eyberg, Shelia M.; Newcomb, Katharine; McNeil, Cheryl B.; Hembree-Kigin, Toni; Capage, Laura

1998-01-01

69

Perceived competency and resolution of homelessness among women with substance abuse problems.  

PubMed

Using a metasynthesis approach, our aim was to articulate new insights relating to the most efficient and effective means of helping homeless women with substance abuse problems to enhance their well-being and become more stably housed. Distorted perceptions of competency, which are shaped by dysfunctional relationships and mental health problems, make it challenging for women with substance abuse problems to resolve homelessness. Women with particularly low or high levels of perceived competency tend to grapple with challenges related to structure and control, trust, and hopelessness. Therapeutic strategies for approaching these women include careful assessment, caring, personalized structure and control, development of interpersonal trust, instillation of hope, and the targeted use of psychotherapeutic agents and counseling. Framing care for homeless women within the context of perceived competency offers a new way of understanding their plight and shaping interventions to more expeditiously move them toward healthy and stable lives. PMID:21890717

Finfgeld-Connett, Deborah; Bloom, Tina L; Johnson, E Diane

2012-03-01

70

The nonlinear dynamics of family problem solving in adolescence: the predictive validity of a peaceful resolution attractor.  

PubMed

In this study we examined the videotaped family interactions of a community sample of adolescents and their parents. Youths were assessed in early to late adolescence on their levels of antisocial behavior. At age 16-17, youths and their parents were videotaped interacting while completing a variety of tasks, including family problem solving. The interactions were coded and compared for three developmental patterns of antisocial behavior: early onset, persistent; adolescence onset; and typically developing. The mean duration of conflict bouts was the only interaction pattern that discriminated the 3 groups. In the prediction of future antisocial behavior, parent and youth reports of transition entropy and conflict resolution interacted to account for antisocial behavior at age 18-19. Families with low entropy and peaceful resolutions predicted low levels of youth antisocial behavior at age 18-19. These findings suggest the need to study both attractors and repellers to understand family dynamics associated with health and social and emotional development. PMID:22695152

Dishion, Thomas J; Forgatch, Marion; Van Ryzin, Mark; Winter, Charlotte

2012-07-01

71

The Nonlinear Dynamics of Family Problem Solving in Adolescence: The Predictive Validity of a Peaceful Resolution Attractor  

PubMed Central

In this study we examined the videotaped family interactions of a community sample of adolescents and their parents. Youths were assessed in early to late adolescence on their levels of antisocial behavior. At age 16–17, youths and their parents were videotaped interacting while completing a variety of tasks, including family problem solving. The interactions were coded and compared for 3 developmental patterns of antisocial behavior: early onset, persistent; adolescence onset; and typically developing. The mean duration of conflict bouts was the only interaction pattern that discriminated the 3 groups. In the prediction of future antisocial behavior, parent and youth reports of transition entropy and conflict resolution interacted to account for antisocial behavior at age 18–19. Families with low entropy and peaceful resolutions predicted low levels of youth antisocial behavior at age 18–19. These findings suggest the need to study both attractors and repellers to understand family dynamics associated with health and social and emotional development. PMID:22695152

Dishion, Thomas J.; Forgatch, Marion; Van Ryzin, Mark; Winter, Charlotte

2012-01-01

72

Compound classification by computer treatment of low resolution mass spectra - Application to geochemical and environmental problems.  

NASA Technical Reports Server (NTRS)

A description is given of a development of computer analysis of low-resolution chromatographic-mass spectrometric data, which provides a preliminary classification of an unknown spectrum as a listing of candidate classes of compounds. This procedure, referred to as COMSOC (Classification of Mass Spectra on Computers), operates by converting an incoming unknown mass spectrum into a simplified key word which is then compared with each of the key words held in its reference file. The advantages of COMSOC in characterizing complex mixtures are emphasized.

Smith, D. H.; Eglinton, G.

1972-01-01

73

The Development of Cooperation and the Resolution of the Food Problem  

Microsoft Academic Search

Already at the dawn of the socialist reforms, V. I. Lenin emphasized that economic construction was impossible without stable food stocks. The wholesale improvement of the population's food supply is also a most important social and political problem in our day and is one of the decisive conditions to the acceleration of the country's socioeconomic development. Restructuring can be carried

Aleksandr Nikonov

1988-01-01

74

BRIEF STRATEGIC PSYCHOTHERAPY WITH CHRONIC PAIN PATIENTS: REFRAMING AND PROBLEM RESOLUTION  

Microsoft Academic Search

There is currently a paucity of literature concerned with the delivery of psychological services to chronic pain patients in an outpatient setting where patient contact is limited to one or two consultations. Yet, the role of psychological consultation to patients with pain problems has expanded greatly in the past decade. This article describes the application of brief strategic interventions that

MICHAEL S. SHUTTY; PETER SHERAS

1991-01-01

75

Selection and Resolution of Function Problems and Their Effects on Student Learning  

ERIC Educational Resources Information Center

This paper examines two experienced Turkish teachers', Ahmet and Burak, selection and implementation of function problems and relates this to the quality of their students' understanding of this notion. The research findings indicate that regardless of the task quality Ahmet engages, through process-oriented teaching, his students with the notion…

Bayazit, Ibrahim

2011-01-01

76

PREPP (Process Experimental Pilot Plant) rotary kiln seals: Problem and resolution  

SciTech Connect

The Process Experimental Pilot Plant (PREPP) is a facility designed to demonstrate processing of low level chemical and transuranic hazardous waste. The plant includes equipment for handling the incoming waste containers, shredding, incineration and cooling the waste, grouting the residue and scrubbing and filtration of the off gas. The process incinerator is a rotary kiln approximately 8-{1/2} ft diameter and 25 ft long with a rotary seal assembly at each end. Each seal assembly consists of a primary, secondary and tertiary seal, with a positive air pressure between primary and secondary seals to prevent out-leakage from the kiln. The kiln operates at 0.5 inch water negative pressure. From the very outset the kiln seals exhibited excessive drag which taxed the kiln drive capacity and excessive in-leakage which limited kiln temperature. An engineering evaluation concluded that the original seals supplied by the kiln vendor could not accommodate expansion and centerline shift of the kiln resulting from heatup of the kiln and its support system. A totally new concept kiln seal design has been generated to replace the (modified) original seals. This new seal system has been designed to provide a very tight long lasting seal which will accommodate the 1.5 inch axial shift and up to 1 inch radial movement of the kiln shell. Design lifetime of the seal is 10,000 operating hours between major maintenance services while maintaining an acceptable leak rate hot or cold, rotating or stopped. The design appears adaptable to any size kiln and is suitable for retrofit to existing kilns. A one-third scale prototype seal assembly is being built to verify the concept prior to construction of the 10 ft diameter seals for the PREPP rotary kiln. 4 figs.

Drexler, R.L. (Idaho National Engineering Lab., Idaho Falls, ID (USA))

1990-01-01

77

Proactive maintenance initiatives at Argonne National Laboratory-West  

SciTech Connect

In the late 1980`s, ANL-W Management foresaw a need to provide dedicated technical support for maintenance supervisors. Maintenance supervisors were facing increased challenges to ensure all environmental, safety, and waste management regulations were followed in daily maintenance activities. This increased burden was diverting supervisory time away from on-the-job supervision. Supervisors were finding less time for their ``mentor`` roles to ensure maintenance focused on finding and correcting root causes. Additionally the traditional maintenance organization could not keep up with the explosion in predictive maintenance technologies. As a result, engineers were tasked to provide direct technical support to the maintenance organization. Today the maintenance technical support group consists of two mechanical engineers, two electrical engineers and an I&C engineer. The group provides a readily available, quick response resource for crafts people and their supervisors. They can and frequently do ask the support group for help to determine the root cause and to effect permanent fixes. Crafts and engineers work together informally to make an effective maintenance team. In addition to day-to-day problem solving, the technical support group has established several maintenance improvement programs for the site. This includes vibration analysis of rotating machinery, testing of fuel for emergency diesel generators, improving techniques for testing of high efficiency particulate air (HEPA) filters, and capacity testing of UPS and emergency diesel starting batteries. These programs have increased equipment reliability, reduced conventional routine maintenance, reduced unexpected maintenance, and improved testing accuracy. This paper will discuss the interaction of the technical support group within the maintenance department. Additionally the maintenance improvement programs will be presented along with actual cases encountered, the resolutions and lessons learned.

Duckwitz, N.R.; Duncan, L.W.; Whipple, J.J.

1995-06-01

78

Does consciousness really collapse the wave function? A possible objective biophysical resolution of the measurement problem  

E-print Network

An analysis has been performed of the theories and postulates advanced by von Neumann, London and Bauer, and Wigner, concerning the role that consciousness might play in the collapse of the wave function, which has become known as the measurement problem. This reveals that an error may have been made by them in the area of biology and its interface with quantum mechanics, when they called for the reduction of any superposition states in the brain through the mind or consciousness. Many years later Wigner changed his mind to reflect a simpler and more realistic objective position, expanded upon by Shimony, which appears to offer a way to resolve this issue. The argument is therefore made that the wave function of any superposed photon state or states is always objectively changed within the complex architecture of the eye in a continuous linear process initially for most of the superposed photons, followed by a discontinuous nonlinear collapse process later for any remaining superposed photons, thereby guaranteeing that only final, measured information is presented to the brain, mind or consciousness. An experiment to be conducted in the near future may enable us to simultaneously resolve the measurement problem and also determine if the linear nature of quantum mechanics is violated by the perceptual process.

Fred H. Thaheld

2005-09-06

79

Parent-Child Interaction Therapy with Behavior Problem Children: Maintenance of Treatment Effects in the School Setting  

Microsoft Academic Search

Followup school assessments were conducted 12 months and 18 months following completion of Parent-Child Interaction Therapy (PCIT), a behavioral family therapy for preschool children with disruptive behavior disorders. Subjects in the treatment group displayed significant home and school behavior problems prior to treatment, and showed clinically significant improvement in home behavior after completing the 14-session program. Additionally, behavioral improvements generalized

Beverly W. Funderburk; Sheila M. Eyberg; Katharine Newcomb; Cheryl B. McNeil; Toni Hembree-Kigin; Laura Capage

1998-01-01

80

A Geographer's Perspective of Contemporary Problems and Human Survival: An Introductory Course in Human Geography and Motorcycle Maintenance.  

ERIC Educational Resources Information Center

The scientific community needs to reappraise its actions and become concerned with the real world problems that threaten existence in society. These include world poverty, starvation, and declining quality of life. Geographers need to develop greater concern resulting in evaluating their research, curricula, educational goals and course content in…

McConnell, James E.

81

The Mad Era: A Possible New Resolution to the Horizon, Flatness, and Monopole Problems  

E-print Network

A cosmology with a dynamical Planck mass $m_{pl}$ is shown to solve the horizon and monopole problems (and possibly flatness) if there is an early MAD (modified aging) era where the universe becomes older than in the standard model as a result of a large $m_{pl}$: the causality condition is $m_{pl}(T_c)/ m_{pl}(T_o) \\gta T_c/T_o$ ($T_c$ is some high temperature while $T_o = 2.74K$.) Unlike inflation, there is no period of vacuum domination nor any entropy violation. We study: a) bare scalar theories of gravity, b) self-interacting models, and c) bare theories with a phase transition in the matter sector.

Katherine Freese; Janna J Levin

1992-11-10

82

S-Genius, a universal software platform with versatile inverse problem resolution for scatterometry  

NASA Astrophysics Data System (ADS)

S-Genius is a new universal scatterometry platform, which gathers all the LTM-CNRS know-how regarding the rigorous electromagnetic computation and several inverse problem solver solutions. This software platform is built to be a userfriendly, light, swift, accurate, user-oriented scatterometry tool, compatible with any ellipsometric measurements to fit and any types of pattern. It aims to combine a set of inverse problem solver capabilities — via adapted Levenberg- Marquard optimization, Kriging, Neural Network solutions — that greatly improve the reliability and the velocity of the solution determination. Furthermore, as the model solution is mainly vulnerable to materials optical properties, S-Genius may be coupled with an innovative material refractive indices determination. This paper will a little bit more focuses on the modified Levenberg-Marquardt optimization, one of the indirect method solver built up in parallel with the total SGenius software coding by yours truly. This modified Levenberg-Marquardt optimization corresponds to a Newton algorithm with an adapted damping parameter regarding the definition domains of the optimized parameters. Currently, S-Genius is technically ready for scientific collaboration, python-powered, multi-platform (windows/linux/macOS), multi-core, ready for 2D- (infinite features along the direction perpendicular to the incident plane), conical, and 3D-features computation, compatible with all kinds of input data from any possible ellipsometers (angle or wavelength resolved) or reflectometers, and widely used in our laboratory for resist trimming studies, etching features characterization (such as complex stack) or nano-imprint lithography measurements for instance. The work about kriging solver, neural network solver and material refractive indices determination is done (or about to) by other LTM members and about to be integrated on S-Genius platform.

Fuard, David; Troscompt, Nicolas; El Kalyoubi, Ismael; Soulan, Sébastien; Besacier, Maxime

2013-05-01

83

Automating Preventive Maintenance.  

ERIC Educational Resources Information Center

Describes the following aspects of the State University of New York-Brockport's preventive maintenance computerization project: (1) software selection, (2) project implementation; and (3) problems and benefits of the system. (MCG)

Oshier, Michael J.

1984-01-01

84

Timpani Repair and Maintenance.  

ERIC Educational Resources Information Center

Rather than focusing on specific brands of timpani, these guidelines for repair cover mechanical problems of a general nature: pedals, dents, unclear tone, and squeaking. Preventive maintenance is discussed. (Author/SJL)

Combs, F. Michael

1980-01-01

85

A Longitudinal Study on Substance Use and Related Problems in Women in Opioid Maintenance Treatment from Pregnancy to Four Years after Giving Birth  

PubMed Central

BACKGROUND Women in opioid maintenance treatment (OMT) have a past characterized by drug abuse, which is a challenging start for parenthood. Studies of mothers in OMT are typically limited to pregnancy and early infancy. Knowledge about how they cope with substance use and related problems in the years following birth is therefore important. The aims of the study were to examine changes in mothers’ substance use, psychological problems, and other challenges; from one to four years after their children were born, and describe kindergarten attendance and prevalence and type of child protective services involvement when the children were four years old. METHOD A four-year prospective cohort study of mothers in OMT. The European severity index was used to map substance use and related problems during the third trimester of pregnancy, one and four years after birth. RESULTS At the four-year follow-up, use of illegal substances remained low (4%) and use of legal substances (39%) was similar to the one-year follow-up. The proportion of women with psychological problems was significantly higher than at one-year follow-up (69 vs. 39%, P = 0.009). At age four, most children (89%) attended kindergarten, and the child protective services were following 73% of the families, mostly with voluntary measures. CONCLUSION Mothers in OMT cope well with substance use over time, given access to sufficient support. The findings imply that a preventive governmental strategy with close support of mother and child, have a positive impact contributing to making OMT and motherhood more compatible. PMID:24855370

Lund, Ingunn O; Brendryen, Havar; Ravndal, Edle

2014-01-01

86

General aviation avionics equipment maintenance  

NASA Technical Reports Server (NTRS)

Maintenance of general aviation avionics equipment was investigated with emphasis on single engine and light twin engine general aviation aircraft. Factors considered include the regulatory agencies, avionics manufacturers, avionics repair stations, the statistical character of the general aviation community, and owners and operators. The maintenance, environment, and performance, repair costs, and reliability of avionics were defined. It is concluded that a significant economic stratification is reflected in the maintenance problems encountered, that careful attention to installations and use practices can have a very positive impact on maintenance problems, and that new technologies and a general growth in general aviation will impact maintenance.

Parker, C. D.; Tommerdahl, J. B.

1978-01-01

87

Reaction Control System Thruster Cracking Consultation: NASA Engineering and Safety Center (NESC) Materials Super Problem Resolution Team (SPRT) Findings  

NASA Technical Reports Server (NTRS)

The shuttle orbiter s reaction control system (RCS) primary thruster serial number 120 was found to contain cracks in the counter bores and relief radius after a chamber repair and rejuvenation was performed in April 2004. Relief radius cracking had been observed in the 1970s and 1980s in seven thrusters prior to flight; however, counter bore cracking had never been seen previously in RCS thrusters. Members of the Materials Super Problem Resolution Team (SPRT) of the NASA Engineering and Safety Center (NESC) conducted a detailed review of the relevant literature and of the documentation from the previous RCS thruster failure analyses. It was concluded that the previous failure analyses lacked sufficient documentation to support the conclusions that stress corrosion cracking or hot-salt cracking was the root cause of the thruster cracking and lacked reliable inspection controls to prevent cracked thrusters from entering the fleet. The NESC team identified and performed new materials characterization and mechanical tests. It was determined that the thruster intergranular cracking was due to hydrogen embrittlement and that the cracking was produced during manufacturing as a result of processing the thrusters with fluoride-containing acids. Testing and characterization demonstrated that appreciable environmental crack propagation does not occur after manufacturing.

MacKay, Rebecca A.; Smith, Stephen W.; Shah, Sandeep R.; Piascik, Robert S.

2005-01-01

88

A distributed approach for the dynamic scheduling of maintenance activities  

Microsoft Academic Search

Many works refer to the scheduling problem of both systematic preventive maintenance and production activities. Few works concern the dynamic scheduling problem of maintenance activities. This aspect is mainly concerned by corrective maintenance activities (equipment failure) and by condition-based maintenance (degradation). Decision- making tools are very helpful to schedule these activities. The person in charge for the service of maintenance

Thierry Coudert; Bernard Archimède

2005-01-01

89

Preventative Maintenance.  

ERIC Educational Resources Information Center

Boards of education must be convinced that spending money up front for preventive maintenance will, in the long run, save districts' tax dollars. A good program of preventive maintenance can minimize disruption of service; reduce repair costs, energy consumption, and overtime; improve labor productivity and system equipment reliability; handle…

Migliorino, James

90

Maintenance Downtime  

... will be unavailable March 5, 2013 8:00 am to 5:00 pm due to database maintenance. Date(s):  Tuesday, March 5, 2013 ... will be unavailable March 5, 2013 8:00 am to 5:00 pm due to database maintenance. ...

2013-07-10

91

Landscaping With Maintenance in Mind.  

ERIC Educational Resources Information Center

Examines school ground landscape design that enhances attractive of the school and provides for easier maintenance. Landscape design issues discussed include choice of grass, trees, and shrubs; irrigation; and safety and access. Other considerations for lessening maintenance problems for facility managers are also highlighted. (GR)

Sorensen, Randy

2000-01-01

92

Preventive Maintenance Handbook. Audiovisual Equipment.  

ERIC Educational Resources Information Center

The preventive maintenance system for audiovisual equipment presented in this handbook is designed by specialists so that it can be used by nonspecialists in school sites. The report offers specific advice on saftey factors and also lists major problems that should not be handled by nonspecialists. Other aspects of a preventive maintenance system…

Educational Products Information Exchange Inst., Stony Brook, NY.

93

The SNM1B/APOLLO DNA nuclease functions in resolution of replication stress and maintenance of common fragile site stability.  

PubMed

SNM1B/Apollo is a DNA nuclease that has important functions in telomere maintenance and repair of DNA interstrand crosslinks (ICLs) within the Fanconi anemia (FA) pathway. SNM1B is required for efficient localization of key repair proteins, such as the FA protein, FANCD2, to sites of ICL damage and functions epistatically to FANCD2 in cellular survival to ICLs and homology-directed repair. The FA pathway is also activated in response to replication fork stalling. Here, we sought to determine the importance of SNM1B in cellular responses to stalled forks in the absence of a blocking lesion, such as ICLs. We found that depletion of SNM1B results in hypersensitivity to aphidicolin, a DNA polymerase inhibitor that causes replication stress. We observed that the SNM1B nuclease is required for efficient localization of the DNA repair proteins, FANCD2 and BRCA1, to subnuclear foci upon aphidicolin treatment, thereby indicating SNM1B facilitates direct repair of stalled forks. Consistent with a role for SNM1B subsequent to recognition of the lesion, we found that SNM1B is dispensable for upstream events, including activation of ATR-dependent signaling and localization of RPA, ?H2AX and the MRE11/RAD50/NBS1 complex to aphidicolin-induced foci. We determined that a major consequence of SNM1B depletion is a marked increase in spontaneous and aphidicolin-induced chromosomal gaps and breaks, including breakage at common fragile sites. Thus, this study provides evidence that SNM1B functions in resolving replication stress and preventing accumulation of genomic damage. PMID:23863462

Mason, Jennifer M; Das, Ishita; Arlt, Martin; Patel, Neil; Kraftson, Stephanie; Glover, Thomas W; Sekiguchi, JoAnn M

2013-12-15

94

Genetic variation and its maintenance  

SciTech Connect

This book contains several papers divided among three sections. The section titles are: Genetic Diversity--Its Dimensions; Genetic Diversity--Its Origin and Maintenance; and Genetic Diversity--Applications and Problems of Complex Characters.

Roberts, D.F.; De Stefano, G.F.

1986-01-01

95

Radiometric calibration of IR Fourier transform spectrometers - Solution to a problem with the High-Resolution Interferometer Sounder  

Microsoft Academic Search

A calibrated Fourier transform spectrometer, known as the High-Resolution Interferometer Sounder (HIS), has been flown on the NASA U-2 research aircraft to measure the infrared emission spectrum of the earth. The primary use - atmospheric temperature and humidity sounding - requires high radiometric precision and accuracy (of the order of 0.1 and 1 C, respectively). To meet these requirements, the

Henry E. Revercomb; William L. Smith; H. Buijs; Hugh B. Howell; D. D. Laporte; L. A. Sromovsky

1988-01-01

96

Development of computer-aided maintenance resources planning (CAMRP): A case of multiple CNC machining centers  

Microsoft Academic Search

Total productive maintenance (TPM), total maintenance assurance, preventive maintenance, reliability-centered maintenance (RCM), and many other innovative approaches to maintenance problems all aim at enhancing the effectiveness of machines to ultimately improve productivity. Each of these concepts demands a unique decision support system for maintenance resources planning, and implementing each of them requires a radical restructuring of work. Introducing computer-aided maintenance

J. Ashayeri

2007-01-01

97

Design and maintenance of a network for collecting high-resolution suspended-sediment data at remote locations on rivers, with examples from the Colorado River  

USGS Publications Warehouse

Management of sand and finer sediment in fluvial settings has become increasingly important for reasons ranging from endangered-species habitat to transport of sediment-associated contaminants. In all rivers, some fraction of the suspended load is transported as washload, and some as suspended bed material. Typically, the washload is composed of silt-and-clay-size sediment, and the suspended bed material is composed of sand-size sediment. In most rivers, as a result of changes in the upstream supply of silt and clay, large, systematic changes in the concentration of the washload occur over time, independent of changes in water discharge. Recent work has shown that large, systematic, discharge-independent changes in the concentration of the suspended bed material are also present in many rivers. In bedrock canyon rivers, such as the Colorado River in Grand Canyon National Park, changes in the upstream tributary supply of sand may cause large changes in the grain-size distribution of the bed sand, resulting in changes in both the concentration and grain-size distribution of the sand in suspension. Large discharge-independent changes in suspended-sand concentration coupled to discharge-independent changes in the grain-size distribution of the suspended sand are not unique to bedrock canyon rivers, but also occur in large alluvial rivers, such as the Mississippi River. These systematic changes in either suspended-silt-and-clay concentration or suspended-sand concentration may not be detectable by using conventional equal-discharge- or equal-width-increment measurements, which may be too infrequently collected relative to the time scale over which these changes in the sediment load are occurring. Furthermore, because large discharge-independent changes in both suspended-silt-and-clay and suspended-sand concentration are possible in many rivers, methods using water discharge as a proxy for suspended-sediment concentration (such as sediment rating curves) may not produce sufficiently accurate estimates of sediment loads. Finally, conventional suspended-sediment measurements are both labor and cost intensive and may not be possible at the resolution required to resolve discharge-independent changes in suspended-sediment concentration, especially in more remote locations. For these reasons, the U.S. Geological Survey has pursued the use of surrogate technologies (such as acoustic and laser diffraction) for providing higher-resolution measurements of suspended-sediment concentration and grain size than are possible by using conventional suspended-sediment measurements alone. These factors prompted the U.S. Geological Survey's Grand Canyon Monitoring and Research Center to design and construct a network to automatically measure suspended-sediment transport at 15-minute intervals by using acoustic and laser-diffraction surrogate technologies at remote locations along the Colorado River within Marble and Grand Canyons in Grand Canyon National Park. Because of the remoteness of the Colorado River in this reach, this network also included the design of a broadband satellite-telemetry system to communicate with the instruments deployed at each station in this network. Although the sediment-transport monitoring network described in this report was developed for the Colorado River in Grand Canyon National Park, the design of this network can easily be adapted for use on other rivers, no matter how remote. In the Colorado River case-study example described in this report, suspended-sediment concentration and grain size are measured at five remote stations. At each of these stations, surrogate measurements of suspended-sediment concentration and grain size are made at 15-minute intervals using an array of different single-frequency acoustic-Doppler side-looking profilers. Laser-diffraction instruments are also used at two of these stations to measure both suspended-sediment concentrations and grain-size distributions. Cross-section calibrations of these instruments have been constructed and verified by using either equal-discharge-increment

Griffiths, Ronald E.; Topping, David J.; Andrews, Timothy; Bennett, Glenn E.; Sabol, Thomas A.; Melis, Theodore S.

2012-01-01

98

Reinforcement Learning for Scheduling of Maintenance  

NASA Astrophysics Data System (ADS)

Improving maintenance scheduling has become an area of crucial importance in recent years. Condition-based maintenance (CBM) has started to move away from scheduled maintenance by providing an indication of the likelihood of failure. Improving the timing of maintenance based on this information to maintain high reliability without resorting to over-maintenance remains, however, a problem. In this paper we propose Reinforcement Learning (RL), to improve long term reward for a multistage decision based on feedback given either during or at the end of a sequence of actions, as a potential solution to this problem. Several indicative scenarios are presented and simulated experiments illustrate the performance of RL in this application.

Knowles, Michael; Baglee, David; Wermter, Stefan

99

Integrating preventive maintenance, predictive maintenance, and maintenance technical support  

Microsoft Academic Search

The fundamental tasks of the Oak Ridge Y-12 Plant maintenance operations are planning, scheduling, executing, postmaintenance testing, completing the maintenance job, and supporting these activities with administrative and technical assistance. The Department of Energy (DOE) ``Maintenance Management Program`` guidelines require that we use a graded approach for applying formality and documentation to these maintenance operations. The most-rigorous controls should be

Leonetti

1992-01-01

100

Integrating preventive maintenance, predictive maintenance, and maintenance technical support  

Microsoft Academic Search

The fundamental tasks of the Oak Ridge Y-12 Plant maintenance operations are planning, scheduling, executing, postmaintenance testing, completing the maintenance job, and supporting these activities with administrative and technical assistance. The Department of Energy (DOE) Maintenance Management Program'' guidelines require that we use a graded approach for applying formality and documentation to these maintenance operations. The most-rigorous controls should be

Leonetti

1992-01-01

101

Inventorying Stressful Life Events as Risk Factors for Psychopathology: Toward Resolution of the Problem of Intracategory Variability  

PubMed Central

An explosion of research on life events has occurred since the publication of the Holmes and Rahe checklist in 1967. Despite criticism, especially of their use in research on psychopathology, such economical inventories have remained dominant. Most of the problems of reliability and validity with traditional inventories can be traced to the intracategory variability of actual events reported in their broad checklist categories. The purposes of this review are, first, to examine how this problem has been addressed within the tradition of economical checklist approaches; second, to determine how it has been dealt with by far less widely used and far less economical labor-intensive interview and narrative-rating approaches; and, third, to assess the prospects for relatively economical, as well as reliable and valid, solutions. PMID:16719570

Dohrenwend, Bruce P.

2006-01-01

102

GEN1/Yen1 and the SLX4 complex: solutions to the problem of Holliday junction resolution  

PubMed Central

Chromosomal double-strand breaks (DSBs) are considered to be among the most deleterious DNA lesions found in eukaryotic cells due to their propensity to promote genome instability. DSBs occur as a result of exogenous or endogenous DNA damage, and also occur during meiotic recombination. DSBs are often repaired through a process called homologous recombination (HR), which employs the sister chromatid in mitotic cells or the homologous chromosome in meiotic cells, as a template for repair. HR frequently involves the formation and resolution of four-way DNA structures referred to as the Holliday junction (HJ). Despite extensive study, the machinery and mechanisms used to process these structures in eukaryotes have remained poorly understood. Recent work has identified XPG and UvrC/GIY domain-containing structure-specific endonucleases that can symmetrically cleave HJs in vitro in a manner that allows for religation without additional processing, properties that are reminiscent of the classical RuvC HJ resolvase in bacteria. Genetic studies reveal potential roles for these HJ resolvases in repair after DNA damage and during meiosis. The stage is now set for a more comprehensive understanding of the specific roles these enzymes play in the response of cells to DSBs, collapsed replication forks, telomere dysfunction, and meiotic recombination. PMID:20203129

Svendsen, Jennifer M.; Harper, J. Wade

2010-01-01

103

Generic Integrated Maintenance Diagnostics  

Microsoft Academic Search

Maintenance Support for a weapon system involves both preventive and corrective maintenance actions. Preventive maintenance is normally associated with mechanical equipment, and requires prognostic maintenance techniques to predict failures before they occur. Corrective maintenance is more closely associated with electronic equipment, and requires diagnostic maintenance techniques to detect and isolate failures after they occur. To pursue a systems approach to

Harry M. Seaman

1986-01-01

104

Maintenance of water and food quality in the stabilization forces area of operations: German surveillance laboratories and the problem of expired field rations.  

PubMed

The medical services of the German contingent of the Stabilization Forces in Bosnia maintain a high-standard-preventive health care system. Because knowledge about German food and water surveillance laboratories is not widespread, these and the methods used for sample examinations as well as their analytical capacities are introduced. From July to November 1998, we examined 168 food samples. Three percent of them were considered unsafe for consumption as a result of microbiological contamination. None was considered unsafe for chemical reasons. Consequently, only one case of suspected food-borne infection occurred. Similar results were found when we examined water quality. Generally, microbiological contamination was low. One sample of mineral water (0.5%) was considered unsafe for consumption for chemical reasons. These findings suggest a high-quality standard of food and water supply for the Stabilization Forces in Bosnia. The maintenance of this level is an important aim of the German preventive health care system. PMID:10826380

Spieler, P; Petersen, H

2000-05-01

105

Health problems and help-seeking activities of methadone maintenance clients at Auckland Methadone Service (AMS): potential for community pharmacy service expansion?  

Microsoft Academic Search

BACKGROUND: In general the health of methadone clients has been found to be poorer than that of the general population. In New Zealand specialist drug services are not funded to provide primary healthcare services. Many health conditions could potentially be managed by community pharmacists who have frequent contact with this client group. This study sought to explore the health problems

Janie Sheridan; Amanda Wheeler; Carina Walters

2005-01-01

106

Resolution on the failure to comply with directives on equal treatment for men and women (the problem of indirect discrimination), 10 March 1988.  

PubMed

This document contains the text of the 1988 Resolution of the Council of Europe on the failure to comply with directives on equal treatment for men and women (the problem of indirect discrimination). The resolution calls on the Commission to be more vigorous in its role as guardian of the Treaties in regard to indirect discrimination. The Commission is urged to draw up a Community definition of "indirect discrimination," a job classification and evaluation guide, a proposal for a system of individual income tax which considers the income of husbands and wives separately, and a proposal for a directive transferring the burden of proof. The Commission should also propose necessary changes in the legislation of member states and diligently pursue infringement proceedings against member states. Further recommendations urge the Commission to ensure 1) that provisions which apply to part-time work do not constitute indirect discrimination, 2) that employment opportunities directed primarily at women (part-time, flexible, or unit-work) are not discriminatory and do not hinder a woman's chances of finding full-time employment, 3) that social security coverage and benefits for part-time workers be protected, 4) that partner's income has no influence on the level of social benefit granted, and 5) that entitlement to additional payments for dependent spouses does not have a discriminatory effect. Among other things, the Council is called upon to adopt as a matter of urgency the proposed directives on voluntary part-time work, on temporary work and fixed-term contracts, and on parental and family leave. PMID:12289276

1988-01-01

107

IDS: Improving Aircraft Fleet Maintenance  

Microsoft Academic Search

This paper describes the Integrated Diagnostic System (IDS), an applied AI project concerned with the development of hybrid information systems to diagnose problems and help manage repair processes of commercial aircraft fleets. A study at one major airline indicated that significant bene- fits could accrue (approximately 2% of overall maintenance budget) through the use of innovative information technol- ogy. The

Rob Wylie; Robert Orchard; Michael Halasz; François Dubé

1997-01-01

108

Stick with a School Maintenance Plan  

ERIC Educational Resources Information Center

The U.S. Department of Education's "Planning Guide for Maintaining School Facilities" states that a sound facilities maintenance plan serves as evidence that school facilities are, and will be, cared for appropriately. On the other hand, negligent facilities maintenance planning can cause real problems. Budget restraints and cuts in areas not…

Kennedy, Mike

2012-01-01

109

A Structural Model of Aircraft Engine Maintenance  

Microsoft Academic Search

We develop and estimate a simple regenerative optimal stopping model of aircraft engine maintenance that attempts to describe the behaviour of airline maintenance personnel. The model assumes that the decision to send an engine to the shop for overhaul is the solution to a stochastic dynamic programming problem that trades off the expected cost of continuing operation with the attendant

D. Mark Kennet

1994-01-01

110

Grounds Maintenance Cost Report.  

ERIC Educational Resources Information Center

A grounds maintenance study was accomplished over the period of March 1965 through February 1966 to--(1) determine current grounds maintenance cost distribution; (2) provide basis for future grounds maintenance budgeting, and (3) provide basic data by which future landscape project designs can be developed to project or reduce maintenance costs.…

Joice, Donald K.

111

Deferred Maintenance Strategies You Must Try.  

ERIC Educational Resources Information Center

Discusses how some college administrators have found "over-the-counter" cures for deferred maintenance problems resulting from budgeting shortfalls. Catch-up approaches discussed include those involving planning, prioritizing, partnering, and gift giving. (GR)

Sturgeon, Julie

2000-01-01

112

An optimization model for aircraft maintenance scheduling and re-assignment  

Microsoft Academic Search

The aircraft maintenance scheduling is one among the major decisions an airline has to make during its operation. Though maintenance scheduling comes as an end stage in an airline operation, it has potential for cost savings. Maintenance scheduling is an easily understood but difficult to solve problem. Given a flight schedule with aircraft assigned to it, the aircraft maintenance-scheduling problem

Chellappan Sriram; Ali Haghani

2003-01-01

113

Resolution on the population and food equation and the search for rational and efficient solutions to the problem of Third World debt to ensure that the world can eat, 9 September 1989.  

PubMed

In September 1989, the 82nd Inter-Parliamentary Conference passed a resolution "on the population and food equation and the search for rational and efficient solutions to the problem of Third World debt to ensure that the world can eat." This document contains major portions of that resolution. In the area of population, the resolution affirms family planning (FP) as a basic human right and affirms the right of governments to establish their own population policies. Governments are asked to provide the educational opportunities necessary to secure equality and rights for women. Service delivery systems should be improved to make FP accessible to the 300 million women in need. Governments should reduce infant and maternal mortality, promote child care and birth spacing, and increase population education activities. The resolution also states that the creation of peaceful conditions for development is an essential precondition for solving the world's problems. In the area of food, the eradication of hunger is designated one of the primary tasks of the international community. This will only occur when developing countries increase their food production and achieve self-sufficiency. Such action is a basic and primary responsibility of developing countries but creditor nations can provide low interest rates for food import assistance and funds to strengthen the agricultural sector. The resolution further considers the problem of developing country debt and deplores coercive measures applied by certain developed countries against developing countries. The resolution contains many suggestions for reducing debt in developing countries and achieving a more equitable distribution of wealth in the world. In the area of food resources and sustainable development, the resolution acknowledges that protection of the environment and the earth's resource base for future generations is a collective responsibility. Ecological threats to the production of food should be dealt with, industrialized countries should decrease consumption of natural resources, and food production should be ecologically sound. PMID:12344011

1989-01-01

114

Diagnosis and prognosis for the maintenance of complex systems  

E-print Network

--This paper adresses the problem of maintenance of a complex and heterogeneous system like an aircraftDiagnosis and prognosis for the maintenance of complex systems Pauline Ribot1,2 , Yannick Pencol´e1. To optimise maintenance, it is required to embed in the system a health monitoring system that implements

Pencolé, Yannick

115

Coordination and Safety Behaviors in Commercial Aircraft Maintenance  

Microsoft Academic Search

Commercial aviation maintenance related incidents reported to the Aviation Safety Report System were investigated focusing on coordination problems. Among 1000 analyzed reports from a two-year period, 98 internal coordination issues within the maintenance team, and 24 external coordination issues between maintenance and other departments were discovered. Frequently established problematic included: not delivering information, sending wrong information and lack of responsibility

Takahiro Suzuki; Terry L. von Thaden; William D. Geibel

2008-01-01

116

Maintenance Therapy in IBD  

MedlinePLUS

... it is advisable to stay on the medication. Maintenance Therapy after Surgery Surgery for ulcerative colitis nearly always results in ... recently, many Crohn's patients were not placed on maintenance medications after surgery. However, drugs such as 6-mercaptopurine and azathioprine, ...

117

Language Maintenance and Revival.  

ERIC Educational Resources Information Center

Language maintenance remains either passive, with no overt efforts at preservation or active with language planning. Models for language maintenance are reviewed along with language reinforcement efforts. An annotated bibliography is included. (Contains 43 references.) (LB)

Marshall, David F.

1994-01-01

118

A reliability\\/availability approach to joint production and maintenance scheduling with multiple preventive maintenance services  

Microsoft Academic Search

In classical scheduling problems, it is often assumed that the machines are available during the whole planning horizon, while in realistic environments, machines need to be maintained and therefore may become unavailable within production periods. Hence, in this paper we suggest a joint production and maintenance scheduling (JPMS) with multiple preventive maintenance services, in which the reliability\\/availability approach is employed

Hadi Mokhtari; Ashkan Mozdgir; Isa Nakhai Kamal Abadi

2012-01-01

119

Home Maintenance Manual.  

E-print Network

8-1521 Texas Agricu~tural Extension Service "V'---P~fJ~ H~~P~fJ~--------------- Home Maintenance Manual -The Texas A&M University System... they become serious. The accompanying home maintenance plan is one way of setting up a regular inspection program. The checklist suggests maintenance and the best time to inspect. Revise or add to this checklist to meet your needs. HOME MAINTENANCE...

Anonymous,

1985-01-01

120

Facilities maintenance handbook  

NASA Technical Reports Server (NTRS)

This handbook is a guide for facilities maintenance managers. Its objective is to set minimum facilities maintenance standards. It also provides recommendations on how to meet the standards to ensure that NASA maintains its facilities in a manner that protects and preserves its investment in the facilities in a cost-effective manner while safely and efficiently performing its mission. This handbook implements NMI 8831.1, which states NASA facilities maintenance policy and assigns organizational responsibilities for the management of facilities maintenance activities on all properties under NASA jurisdiction. It is a reference for facilities maintenance managers, not a step-by-step procedural manual. Because of the differences in NASA Field Installation organizations, this handbook does not assume or recommend a typical facilities maintenance organization. Instead, it uses a systems approach to describe the functions that should be included in any facilities maintenance management system, regardless of its organizational structure. For documents referenced in the handbook, the most recent version of the documents is applicable. This handbook is divided into three parts: Part 1 specifies common definitions and facilities maintenance requirements and amplifies the policy requirements contained in NMI 8831. 1; Part 2 provides guidance on how to meet the requirements of Part 1, containing recommendations only; Part 3 contains general facilities maintenance information. One objective of this handbook is to fix commonality of facilities maintenance definitions among the Centers. This will permit the application of uniform measures of facilities conditions, of the relationship between current replacement value and maintenance resources required, and of the backlog of deferred facilities maintenance. The utilization of facilities maintenance system functions will allow the Centers to quantitatively define maintenance objectives in common terms, prepare work plans, and develop management information in order to statistically identify and analyze variances from those plans. It will also add credibility to the NASA facilities maintenance budgeting process. The key to a successful maintenance program is the understanding and support of the senior Center managers.

1991-01-01

121

Research requirements to reduce maintenance costs of civil helicopters  

NASA Technical Reports Server (NTRS)

The maintenance problems faced by the operators of civil helicopters that result in high costs are documented. Existing technology that can be applied to reduce maintenance costs and research that should be carried out were identified. Good design practice and application of existing technology were described as having a significant impact on reducing maintenance costs immediately. The research and development that have potential for long range reduction of maintenance costs are presented.

Million, D. J.; Waters, K. T.

1978-01-01

122

Asphalt in Pavement Maintenance.  

ERIC Educational Resources Information Center

Maintenance methods that can be used equally well in all regions of the country have been developed for the use of asphalt in pavement maintenance. Specific information covering methods, equipment and terminology that applies to the use of asphalt in the maintenance of all types of pavement structures, including shoulders, is provided. In many…

Asphalt Inst., College Park, MD.

123

Light Vehicle Preventive Maintenance.  

ERIC Educational Resources Information Center

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)…

Marine Corps Inst., Washington, DC.

124

Common S2ENCE maintenance  

Microsoft Academic Search

Intermediate level avionics maintenance requires diagnostic assessment, repair, and flight certification steps. The current Automated Test Systems (ATS) are primarily designed to verify equipment end-to-end function (flight certification), so they are not optimized to support diagnostic procedures. An operator typically performs problem diagnosis at the beginning of the end-to-end test without any automated access to existing evidence of the likely

Simon M. Jessop; Johan Reimann; Patrick W. Kalgren

2009-01-01

125

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

Code of Federal Regulations, 2010 CFR

... CAMP: Maintenance and preventive maintenance training program. 91... CAMP: Maintenance and preventive maintenance training program. Each...performing maintenance or preventive maintenance functions for it must...

2010-01-01

126

Maintenance as a safety issue.  

PubMed

Because safety is related to electrical power systems maintenance, it seems reasonable to assume there could be legal issues if maintenance is not performed. OSHA has not yet taken the stand that not performing maintenance as required by the manufacturer, NFPA 70B, or ANSI/NETA MTS-07 constitutes a willful violation. OSHA defines a willful citation as one where: "the employer knowingly commits with plain indifference to the law. The employer either knows that what he or she is doing constitutes a violation, or is aware that a hazardous condition existed and made no reasonable effort to eliminate it". However, NFPA 70E 2009 requires this maintenance, and OSHA has stated on its Web site that NFPA 70E is "a guide for meeting the requirements of the OSHA electrical regulations". In addition, federal courts have found that NFPA 70E is "standard industry practice." Once a company receives and accepts a willful citation, especially if received as the result of an accident investigation, its worker's compensation protection no longer shields it. One definition given by a trial attorney for a willful citation was that it is equal to negligent behavior. Be smart: Maintain that equipment and save yourself major problems, including unscheduled shutdowns and possible litigation. PMID:19025196

White, Jim

2008-11-01

127

Maintenance electroconvulsive therapy in autistic catatonia: A case series review  

Microsoft Academic Search

The usage of electroconvulsive therapy for the acute resolution of catatonia in autistic children and adults is a novel area that has received increased attention over the past few years. Reported length of the acute ECT course varies among these patients, and there is no current literature on maintenance ECT in autism. The maintenance ECT courses of three patients with

Lee E. Wachtel; Adriana Hermida; Dirk M. Dhossche

2010-01-01

128

Self-interested database managers playing the view maintenance game  

Microsoft Academic Search

A database view is a dynamic virtual table composed of the result set of a query, often executed over dierent underlying databases. The view maintenance problem concerns how a view is refreshed when the data sources are updated. We study the view maintenance problem when self-interested database managers from dierent institutions are involved, each concerned about the privacy of its

Hala Mostafa; Victor R. Lesser; Gerome Miklau

2008-01-01

129

Innovation for maintenance technology improvements  

NASA Technical Reports Server (NTRS)

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.

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

1982-01-01

130

Operation & Maintenance for Quality Indoor Air  

E-print Network

awareness of their environment: To address this ne'ed, the Environmental Monitoring Branch of the Georgia Tech Research Institute has conducted more than thirty "sick building syndrome" (SBS) studies primarily on commercial and institutional buildings.... The most common source of IAQ problems identified in these studies has been the lack of proper operation and maintenance (O&M) of the building. O&M is defined here as including all aspects of building operation and maintenance including HVAC, custodial...

Downing, C.; Bayer, C. W.

1990-01-01

131

Optimal joint preventive maintenance and production policies  

Microsoft Academic Search

We study joint preventive maintenance (PM) and production policies for an unreliable production-inventory system in which maintenance\\/repair times are non-negligible and stochastic. A joint policy decides (a) whether or not to perform PM and (b) if PM is not performed, then how much to produce. We consider a discrete-time system, formulating the problem as a Markov decision process (MDP) model.

Xiaodong Yao; Xiaolan Xie; Michael C. Fu; Steven I. Marcus

2005-01-01

132

The scheduling of maintenance servicing  

SciTech Connect

We study the problem of scheduling maintenance services to a given number of machines where at most one machine may be serviced at any one time. The cost of operating a machine is assumed to increase linearly with the number of periods since the last maintenance of that machine. We also assume that no cost is associated with the maintenance service itself, and that each service takes precisely one period of time. The problem is to find an optimal policy specifying at which periods to service each of the machines in order to minimize the long-run average operating cost per period. We investigate properties of an optimal solution and show that while there is always a cyclic optimal policy there are severe limitations on the regularity of services to individual machines in an optimal solution. We propose a greedy algorithm which respects proven properties of an optimal solution and report on computational comparison with the optimal. We also provide a heuristic, based on regular cycles for all but one machine, with a guaranteed, but poor, worse case bound. The two machine case we solve to optimality and the 3 machine case to within 10% of optimal in the worse case.

Glass, C.; Anily, S.; Hassin, R.

1994-12-31

133

Industrial Maintenance Resource Website  

NSDL National Science Digital Library

This website, authored by Maintenance Resources.com provides a series of helpful how-to articles about various topics related to industrial maintenance, such as variable speed drives, fluid power, and mechanics The topics covered include: alignment, balancing, bearing, belts, CMMS, CNC, compressors, compressed air, control valves, electrical, failure analysis, gears, hydraulics, infrared thermography, maintenance management, motor drives, oil analysis, pipefitting, pumps, RCM/predictive maintenance, roller chain drives, seals, shafts, Spanish articles, steam traps, and vibration analysis. This is a nice collection of resource relating to the fundamental elements of this topic.

2009-06-25

134

MANTEMA: A Complete Rigorous Methodology for Supporting Maintenance Based On The ISO\\/IEC 12207 Standard  

Microsoft Academic Search

The maintenance of information systems is one of the greatest problems in the software life cycle; it is the most conflictive, costliest, less planeable; and the process requiring the most resources. In spite of this reality, most organizations do not possess methodologies for maintenance. The imperative need for controlling the maintenance process has carried us to propose a maintenance methodology.

Macario Polo; Mario Piattini; Francisco Ruiz; Coral Calero

1999-01-01

135

Single-machine scheduling with periodic and flexible periodic maintenance to minimize maximum tardiness  

Microsoft Academic Search

This paper considers a single-machine scheduling problem with several maintenances periods. Specifically, two situations are investigated. In the first one, maintenance periods are periodically fixed: maintenance is required after a periodic time interval. In the second one, the maintenance is not fixed but the maximum continuous working time of the machine which is allowed is determined. The objective is to

Mohammed Sbihi; Christophe Varnier

2008-01-01

136

Resolution of numerical control machine tool modification problems using a symbiosis of machinery diagnostics, modal analysis, structural dynamics modification and acoustic intensity analysis  

SciTech Connect

A multi-million dollar retrofit project was initiated to update a number of older numerical control machine tools. The retrofit replaced the servo control systems, the indexing motors, drive systems and spindle motor. One machine was upgraded as a prototype, but several dynamic problems in both the indexing systems and spindle drive became apparent. These dynamic problems were unacceptable in their effect on machining accuracy. Acoustic intensity measurements were used to pinpoint the source of an irritating 3 KHz tone. This tone indicated a significant amount of energy resulting in a high displacement in the indexing motors. Frequency response measurements of the motor response vs the power supply input quantified the motor problem and the acoustic levels. Modal analysis was applied to the axial resonances of the index motors to determine the response of the mechanical coupling and run up/down tests were used to determine the spindle motor drive problems. 8 figs.

Van Hoy, B.W.; Strunk, W.D.; Morton, T.L.; Tuft, R.M.

1988-01-01

137

RADIOACTIVE PLANT MAINTENANCE  

Microsoft Academic Search

A review is presented of practices in the maintenance of nuclear power ; plants and radiochemical plants. The plants for which practices are summarized ; are the Homogeneous Reactor Experiment No. 2, Molten Salt Reactor Experiment, ; Sodium Reactor Experiment, Liquid-Metal Fuel Reactor, and Vallecitos Boiling-; Water Reactor. The maintenance philosophies of various radiochemical plants are ; tabulated. (D.L.C.);

1963-01-01

138

Maximizing Hard Floor Maintenance.  

ERIC Educational Resources Information Center

Explains the maintenance options available for hardwood flooring that can help ensure long life cycles and provide inviting spaces. Developing a maintenance system, knowing the type of traffic that the floor must endure, using entrance matting, and adhering to manufacturers guidelines are discussed. Daily, monthly or quarterly, and long-term…

Steger, Michael

2000-01-01

139

Fixing Maintenance Productivity.  

ERIC Educational Resources Information Center

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…

Fickes, Michael

2003-01-01

140

Maintenance Trades Guidelines  

ERIC Educational Resources Information Center

In 2002, APPA published "Maintenance Staffing Guidelines for Educational Facilities," the first building maintenance trades staffing guideline designed to assist educational facilities professionals with their staffing needs. addresses how facilities professionals can determine the appropriate size and mix of their organization. Contents include…

Weidner, Theodore J.

2008-01-01

141

Conflict Resolution for Contrasting Cultures.  

ERIC Educational Resources Information Center

A seven-step process can help people from different cultures understand each other's intentions and perceptions so they can work together harmoniously: problem identification, problem clarification, cultural exploration, organizational exploration, conflict resolution, impact assessment, and organizational integration. (JOW)

Clarke, Clifford C.; Lipp, G. Douglas

1998-01-01

142

Maintenance improvement program  

SciTech Connect

During fuel cycle 1 at River Bend station, considerable effort was expended to reduce corrective maintenance work orders (MWOs) to <1,000. This was done by complementing the plant staff with costly contract personnel. Coming out of the first refueling outage, most contract personnel were released. The change in MWO backlog started a steady rise. It became readily apparent that to avoid costly contract staff time, a maintenance improvement program (MIP) was necessary. The MIP Was primarily directed at two areas: crew efficiency improvements and improved preplanned MWO packages. The overall effect of the MIP was to achieve significant productivity improvements with reduced operation and maintenance cost by providing frequent accountability to all levels of maintenance supervision. The MIP also produced a feeling of pride among the maintenance department employees that had not really existed before. This was the best benefit of all.

Derbonne, D.R.; Plunkett, T.F.; Simpson, J.R. (Gulf States Utilities, St. Francisville, LA (USA))

1989-11-01

143

Total Productive Maintenance (TPM)  

NSDL National Science Digital Library

It can be considered as the medical science of machines. Total Productive Maintenance (TPM) is a maintenance program which involves a newly defined concept for maintaining plants and equipment. The goal of the TPM program is to markedly increase production while, at the same time, increasing employee morale and job satisfaction.TPM brings maintenance into focus as a necessary and vitally important part of the business. It is no longer regarded as a non-profit activity. Down time for maintenance is scheduled as a part of the manufacturing day and, in some cases, as an integral part of the manufacturing process. The goal is to hold emergency and unscheduled maintenance to a minimum.

2008-11-24

144

Resolution of Compliance Violation in Business Process Models: A Planning-Based Approach  

NASA Astrophysics Data System (ADS)

Keeping business processes compliant with regulations is of major importance for companies. Considering the huge number of models each company possesses, automation of compliance maintenance becomes essential. Therefore, many approaches focused on automation of various aspects of compliance problem, e.g., compliance verification. Such techniques allow localizing the problem within the process model. However, they are not able to resolve the violations. In this paper we address the problem of (semi) automatic violation resolution, addressing violations of execution ordering compliance rules. We build upon previous work in categorizing the violations into types and employ automated planning to ensure compliance. The problem of choosing the concrete resolution strategy is addressed by the concept of context.

Awad, Ahmed; Smirnov, Sergey; Weske, Mathias

145

Solenoid valve maintenance and application guide  

SciTech Connect

Solenoid operated valves (SOV) are used widely in the nuclear power industry, both in safety related and balance of plant systems. Due to a number of reported failures and malfunctions, solenoid valves have recently drawn wide attention from regulatory agencies and plant maintenance personnel. This NMAC document is designed to help power plant personnel understand, evaluate, and resolve any potential maintenance problem related to the operation of solenoid valves. It can also be used for training of maintenance personnel and system engineers. The guide provides detailed information about SOV operation, as well as the limitations and design characteristics which should be considered when selecting a valve for application. It also describes various modes of failure and evaluates industry wide failure data. In addition, descriptions of various troubleshooting, maintenance, and repair methods are included.

Holzman, P. (Strategic Technology and Resources, Winchester, MA (United States))

1992-04-01

146

14 CFR 43.9 - Content, form, and disposition of maintenance, preventive maintenance, rebuilding, and alteration...  

Code of Federal Regulations, 2013 CFR

...TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE...performs preventive maintenance, rebuilds, or alters an aircraft, airframe, aircraft...maintenance, preventive maintenance, rebuilding, and alteration, on aircraft,...

2013-01-01

147

14 CFR 43.9 - Content, form, and disposition of maintenance, preventive maintenance, rebuilding, and alteration...  

...TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE...performs preventive maintenance, rebuilds, or alters an aircraft, airframe, aircraft...maintenance, preventive maintenance, rebuilding, and alteration, on aircraft,...

2014-01-01

148

14 CFR 43.9 - Content, form, and disposition of maintenance, preventive maintenance, rebuilding, and alteration...  

Code of Federal Regulations, 2012 CFR

...TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE...performs preventive maintenance, rebuilds, or alters an aircraft, airframe, aircraft...maintenance, preventive maintenance, rebuilding, and alteration, on aircraft,...

2012-01-01

149

14 CFR 43.9 - Content, form, and disposition of maintenance, preventive maintenance, rebuilding, and alteration...  

Code of Federal Regulations, 2011 CFR

...TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE...performs preventive maintenance, rebuilds, or alters an aircraft, airframe, aircraft...maintenance, preventive maintenance, rebuilding, and alteration, on aircraft,...

2011-01-01

150

Developing an object-oriented software testing and maintenance environment  

Microsoft Academic Search

The object-oriented (OO) paradigm is rapidly gaining acceptance in the software industry. However, the powerful features of this new paradigm also introduce a new set of OO software testing and maintenance problems. The pioneering work in identifying these new problems includes [7, 10-12, 14, 16, 18]. The problems can be summarized as: 1) the understanding problem; 2) the complex interdependency

David Chenho Kung; Jerry Gao; Pei Hsia; Yasufumi Toyoshima; Chris Chen; Young-Si Kim; Young-Kee Song

1995-01-01

151

Evaluation of Counseling Outcomes at a University Counseling Center: The Impact of Clinically Significant Change on Problem Resolution and Academic Functioning  

ERIC Educational Resources Information Center

The main purpose of this study was to investigate how receiving personal counseling at a university counseling center helps students deal with their personal problems and facilitates academic functioning. To that end, this study used both clinical and academic outcome measures that are relevant to the practice of counseling provided at a…

Choi, Keum-Hyeong; Buskey, Wendy; Johnson, Bonita

2010-01-01

152

Lunar robotic maintenance module  

NASA Technical Reports Server (NTRS)

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.

Ayres, Michael L.

1988-01-01

153

Lawn Maintenance Safety  

E-print Network

Most homeowners do not consider lawn maintenance to be dangerous. However lawn mowers, trimmers, edgers and other power equipment can cause minor to severe burns and lacerations, broken and dislocated bones, eye injuries and loss of fingers, toes...

Smith, David

2005-07-12

154

Care and Maintenance.  

ERIC Educational Resources Information Center

The classroom care and maintenance of terrestrial isopods is described. Includes illustrations of isopod external anatomy, a potato trap for collecting isopods, and a constructed habitat for raising isopods. (MA)

Hampton, Carolyn H.; Hampton, Carol D.

1979-01-01

155

Automated preventive maintenance program  

NASA Technical Reports Server (NTRS)

Maintenance program which is concise and inexpensive to operate adapts to almost any system that has a FORTRAN compiler. Program operates on a stored data base with an output consisting of scheduling information and various management reports.

Cea, E. J.; Grieger, T. H.

1971-01-01

156

Reliability Centred Maintenance  

Microsoft Academic Search

Reliability centred maintenance (RCM) is a method for maintenance planning that was developed within the aircraft industry\\u000a and later adapted to several other industries and military branches. A high number of standards and guidelines have been issued\\u000a where the RCM methodology is tailored to different application areas, e.g., IEC 60300-3-11, MIL-STD-217, NAVAIR 00-25-403 (NAVAIR 2005), SAE JA 1012 (SAE 2002),

Marvin Rausand; Jørn Vatn

157

Computer-Assisted Microcomputer Preventive Maintenance.  

ERIC Educational Resources Information Center

Proposes a solution to the problem of preventive microcomputer maintenance in libraries. The strategy involves a batch program, small paper form, simple WordPerfect macro, and on-diskette log form which saves time, quickly generates standard reports, increases efficiency, eliminates most paperwork, and offers the flexibility for modification and…

Ives, David J.

1993-01-01

158

Expert system for aircraft maintenance services industry  

Microsoft Academic Search

Purpose – The purpose of this study is to propose an approach to facilitate the allocation of labor resources, which is a complex and fuzzy problem in nature existing in the aircraft maintenance services industry. On the other hand, the shortage of experienced and qualified engineers makes the labor allocation process even more difficult. Design\\/methodology\\/approach – Various approaches can be

Angus Cheung; W. H. Ip; Dawei Lu

2005-01-01

159

TEAMS: technical expert aircraft maintenance system  

Microsoft Academic Search

The technical expert aircraft maintenance system (TEAMS) is an interactive system that supports the diagnosis of problems on new aircraft. The system uses expert system technology to provide the aircraft mechanic with the knowledge and experience needed to successfully repair an aircraft. TEAMS consists of a number of expert-system modules. The authors give an overview of the TEAMS effort, a

M. P. Lischke; K. L. Mayer

1992-01-01

160

The $7-Billion Patch for Campus Maintenance  

ERIC Educational Resources Information Center

Colleges are facing a growing deferred-maintenance problem, which at many public institutions adds up to repair bills in the hundreds of millions of dollars. Sometimes state legislatures have not supported those colleges at levels needed to maintain campus infrastructure. But at the same time, colleges continue to expand their campuses even as…

Carlson, Scott

2009-01-01

161

MAINTENANCE The Aviation Maintenance Technology Program offers an associate of  

E-print Network

AVIATION MAINTENANCE TECHNOLOGY The Aviation Maintenance Technology Program offers an associate of applied science in aviation maintenance and certificates in airframe, powerplant, or airframe and powerplant maintenance. It is one of the few twelve month Federal Aviation Administration Part-147 certified

Ickert-Bond, Steffi

162

Worm defense system research based on intelligent maintenance trees  

Microsoft Academic Search

Worm defense is an important security problem that has long aroused people's attention. With an eye to improve intranet security, an intelligent maintenance tree- based worm defense strategy is put forward by analyzing intranet worm propagation characteristics. Mobile agent- based down automatic maintenance line and detection-based up alarm line constitute an intranet active defense circuit and the mathematical model of

Qin-ying Lina; De-qin Shi; Lei Huang; Xiao-lin Gui; Ya-nan Kou; Xiao-ping Wang

2011-01-01

163

Towards a General-Purpose Belief Maintenance System.  

ERIC Educational Resources Information Center

This paper addresses the problem of probabilistic reasoning as it applies to Truth Maintenance Systems (TMS). A computer-based Belief Maintenance System (BMS) has been constructed which manages a current set of probabilistic beliefs in much the same way that a TMS manages a set of true/false beliefs. It may be thought of as a generalization of a…

Falkenhainer, Brian

164

Qualitative Analysis for Maintenance Process Assessment  

NASA Technical Reports Server (NTRS)

In order to improve software maintenance processes, we first need to be able to characterize and assess them. These tasks must be performed in depth and with objectivity since the problems are complex. One approach is to set up a measurement-based software process improvement program specifically aimed at maintenance. However, establishing a measurement program requires that one understands the problems to be addressed by the measurement program and is able to characterize the maintenance environment and processes in order to collect suitable and cost-effective data. Also, enacting such a program and getting usable data sets takes time. A short term substitute is therefore needed. We propose in this paper a characterization process aimed specifically at maintenance and based on a general qualitative analysis methodology. This process is rigorously defined in order to be repeatable and usable by people who are not acquainted with such analysis procedures. A basic feature of our approach is that actual implemented software changes are analyzed in order to understand the flaws in the maintenance process. Guidelines are provided and a case study is shown that demonstrates the usefulness of the approach.

Brand, Lionel; Kim, Yong-Mi; Melo, Walcelio; Seaman, Carolyn; Basili, Victor

1996-01-01

165

The aircraft rotation problem  

Microsoft Academic Search

Given a set of flights to be flown for a specific aircraft type, with specified maintenance locations, durations, and needed frequency, the aircraft rotation problem is to determine the specific route flown by each aircraft. The objective is to maximize the benefit derived from making specific connections. In this paper, we present a mathematical formulation for the aircraft rotation problem

Lloyd Clarke; Ellis Johnson; George Nemhauser; Zhongxi Zhu

1997-01-01

166

Building Maintenance, Management, and Budgeting.  

ERIC Educational Resources Information Center

Australian methods and formulas for funding building maintenance and management are outlined and found to be haphazard. Discussed are: ultimate costs of deferred maintenance, major plant replacements, life cycle costing, types of maintenance programs (including full preventive maintenance), use of computer programs for planning, and organization…

Pawsey, M. R.

1982-01-01

167

Does maintenance treatment matter?  

PubMed

This study examined the effects of a two-year maintenance treatment assessed at 1 and 2 years following Parent-child Interaction Therapy (PCIT). Sixty-one of 100 clinic-referred children (M age?=?4 years, 4 months) originally diagnosed with oppositional defiant disorder (ODD) completed the standard treatment and were then randomized to PCIT maintenance treatment (MT) or to an assessment-only follow-up condition (AO). Rating scale and observational measures from fathers, mothers, and children were collected before and after standard treatment and at one- and two-year follow-up assessments. Maintenance treatment involved monthly telephone contacts from the original therapist focused on relapse prevention based on principles of PCIT. At the two-year follow-up, MT families showed few changes from post-treatment, as expected. However, the expected decrements for AO control families were not seen. Few differences between MT and AO were found at either follow-up assessment, and there were no significant differences in the rates of change during follow-up. The maintenance of gains among AO families may have resulted from the continuous enhancement of standard treatment or from inadvertent reinforcement for maintenance provided by the assessments of change alone. PMID:24413969

Eyberg, Sheila; Boggs, Stephen; Jaccard, James

2014-01-01

168

Generation and maintenance of recirculations by Gulf Stream instabilities  

E-print Network

This thesis studies the problems of generation and maintenance of recirculations by Gulf Stream instabilities. Observations show that the horizontal structure of the jet and its recirculations suffer significant changes ...

Beliakova, Natalia Yurievna, 1967-

1999-01-01

169

14 CFR 91.417 - Maintenance records.  

Code of Federal Regulations, 2010 CFR

...RULES GENERAL OPERATING AND FLIGHT RULES Maintenance, Preventive Maintenance, and Alterations § 91.417 Maintenance...of this section: (1) Records of the maintenance, preventive maintenance, and alteration and...

2010-01-01

170

Maintenance simulation: Software issues  

SciTech Connect

The maintenance of a distributed software system in a production environment involves: (1) maintaining software integrity, (2) maintaining and database integrity, (3) adding new features, and (4) adding new systems. These issues will be discussed in general: what they are and how they are handled. This paper will present our experience with a distributed resource management system that accounts for resources consumed, in real-time, on a network of heterogenous computers. The simulated environments to maintain this system will be presented relate to the four maintenance areas.

Luk, C.H.; Jette, M.A.

1995-07-01

171

Maintenance of Certification®, Maintenance of Public Trust  

PubMed Central

The Maintenance of Certification® (MOC) program has been well received by many physicians, but faced significant opposition from others, who complain that it is overly tedious, costly, and irrelevant to their practice. This article offers a consolidated and concise history of the MOC program and a summary of what plastic surgeons need to know to successfully complete the American Board of Plastic Surgery’s (ABPS) own MOC requirements. The authors have justified each step of the ABPS’s MOC process in terms of how it improves the quality of care delivered to Plastic Surgery patients. Finally, a summary of research is presented that demonstrates both that the public supports the MOC process for all physicians and that continuing education and formal assessment and improvement initiatives have been linked in multiple studies to a better and more evidence-based medical practice. PMID:21285803

Chung, Kevin C.; Clapham, Philip J.; Lalonde, Donald H.

2010-01-01

172

High resolution drift chambers  

SciTech Connect

High precision drift chambers capable of achieving less than or equal to 50 ..mu..m resolutions are discussed. In particular, we compare so called cool and hot gases, various charge collection geometries, several timing techniques and we also discuss some systematic problems. We also present what we would consider an ''ultimate'' design of the vertex chamber. 50 refs., 36 figs., 6 tabs.

Va'vra, J.

1985-07-01

173

Role of recycled oceanic crust in the potassium and argon budget of the Earth: Toward a resolution of the ``missing argon'' problem  

NASA Astrophysics Data System (ADS)

The K content of the Silicate Earth is commonly estimated at ˜250 ppm on the basis of K/U ratios of ˜12,000-13,000 in mid-ocean ridge basalts and continental crust, and assuming a chondritic U content for the Earth. Given this K content, only ˜50% of the 40Ar generated over Earth history from the decay of 40K currently resides in the atmosphere. Because the upper mantle is thoroughly degassed and contains little 40Ar, the "missing" Ar has long been taken as evidence for a gas-rich (and therefore convectively isolated) lower mantle. An alternative solution of the "missing Ar" problem is that the K content of the Silicate Earth is substantially lower than 250 ppm. Previous estimates have failed to take into account the composition of recycled oceanic crust, which could comprise up to 6-9% of the mantle by mass and contain up to 40% of the Earth's U. Because K is more soluble than U in subduction-generated hydrous fluids, recycled, dehydrated oceanic crust is characterized by extremely low K/U ratios. This is evidenced in the low K/U ratios of eclogites (˜1000), and in HIMU-type basalts (˜4000), which are thought to derive from sources containing significant quantities of recycled crust. Ocean island basalts, which are generated from mantle containing varying amounts and types of recycled material, possess highly variable K/U ratios, but average K/U ratios from individual island chains are negatively correlated with 206Pb/204Pb, indicating that the low K/U in some ocean-island basalts is a long-lived source feature. Inclusion of a recycled crust reservoir in K and U mass balance calculations results in an estimate of the Bulk Silicate Earth K/U of ˜7000-9000, or a K content of ˜150-195 ppm. As a result, much of the "missing" 40Ar thought to be stored in the deep mantle may not exist, with ˜60-90% of the Earth's 40Ar residing in the atmosphere or continental crust. The remaining 40Ar can be accommodated in the convecting mantle without isolation of a deep, undegassed reservoir.

Lassiter, John C.

2004-11-01

174

ROV overcomes deepwater problems  

SciTech Connect

The use of remotely operated vehicles (ROVs) in supportive drill ships operating in more than 200 meters of water poses severe technical and operational problems. Defining these problems beforehand and addressing them during design, manufacture, testing and installation ensures a functional and effective support capability. Such problems as the availability of desk space, and the subsequent installation, maintenance, and the launch/recovery of the system are described.

Frisbie, F.R.; Hughes, E.W.

1984-09-01

175

Taxonomy of Problem Management Activities  

Microsoft Academic Search

Maintenance categories differ too much in order to be covered by one and the same generic process model. Too general process models do not give enough guidance when building process models and when measuring processes. They often invite subjectivity and imprecision. The authors suggest a detailed taxonomy of the activities for one of the processes essential within corrective maintenance: Problem

Mira Kajko-mattsson; Ulf Westblom; Stefan Forssander; Gunnar Andersson II; Mats Medin; Sari Ebarasi; Tord Fahlgren; Sven-erik Johansson; Stefan Törnquist; Margareta Holmgren

2001-01-01

176

Preventive Maintenance Process  

NASA Technical Reports Server (NTRS)

The Preventive Maintenance (PM) program at Stennis Space Center (SSC) evolved from an ineffective and poorly organized state to a highly organized state in which it became capable of tracking equipment, planning jobs with man hour estimates, and supporting outsourcing. This viewgraph presentation traces the steps the program took to improve itself.

Ciaruffoli, Veronica; Bramley, Craig; Matteson, Mike

2001-01-01

177

School Maintenance Needs  

ERIC Educational Resources Information Center

The United States is full of schools built in the 1950s and 60s that supported the boomer school-age enrollment increase. These schools, once beacons of the neighborhood, are 50 to 60 years old and susceptible to becoming the community "eyesore." Budgeting for maintenance was fairly systematic for school districts for the first 10 to 20 years…

Erickson, Paul W.

2011-01-01

178

Aviation Maintenance Technician Handbook  

NSDL National Science Digital Library

This document from SpaceTEC National Aerospace Technical Education Center is one of three handbooks for people preparing for mechanic certification with airframe or powerplant ratings, or both. This particular volume contains information on mathematics, aircraft drawings, weight and balance, aircraft materials, processes and tools, physics, electricity, inspection, ground operations, and FAA regulations governing the certification and work of maintenance technicians.

2011-07-20

179

Diesel Vehicle Maintenance Competencies.  

ERIC Educational Resources Information Center

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,…

Braswell, Robert; And Others

180

Sewer Maintenance Manual.  

ERIC Educational Resources Information Center

Outlined are practices and procedures that should be followed in order to protect and fully realize the benefits of sewer systems and also to maximize service and minimize inconveniences to the public. Written in practical terms, the manual is designed to be of immediate use to municipal employees and others involved in sewer maintenance

Ontario Ministry of the Environment, Toronto.

181

Electrical Maintenance Technician.  

ERIC Educational Resources Information Center

This document contains 30 units to consider for use in a tech prep competency profile for the occupation of electrical maintenance technician. All the units listed will not necessarily apply to every situation or tech prep consortium, nor will all the competencies within each unit be appropriate. Several units appear within each specific…

Ohio State Univ., Columbus. Center on Education and Training for Employment.

182

Summer Roof Maintenance.  

ERIC Educational Resources Information Center

Presents the items to review in roofing maintenance to prepare for the impact of summer, including checking drainage, roof-field surface and membrane, flashings, sheet metal, and rooftop equipment, such as skylights and penthouses. A list of roofing facts facility managers should know are highlighted. (GR)

Liscum, Curtis L.

1999-01-01

183

Agent aided aircraft maintenance  

Microsoft Academic Search

Aircraft maintenance is performed by mechanics who are required,by regulation, to consult expert engineers for repairinstructions and approval. In addition to their own experience,these engineers rely on external information sources,which are often inadequately indexed and geographicallydispersed. The timely retrieval of this distributed informationis vital to the engineers\\

Onn Shehory; Katia P. Sycara; Gita Sukthankar; Vick Mukherjee

1999-01-01

184

Process Technology: Process Maintenance Engineer  

NSDL National Science Digital Library

In this video adapted from Pathways to Technology, youâÂÂll meet Tyrone Walker, who keeps the enormous machines at a Tupperware factory running 24/7/365. Tyrone is a process maintenance engineer. This means he inspects all the parts of a machineâÂÂs electronics system looking for problems, from the tiniest components to the machine as a whole. Tyrone's community college degree in electronic engineering is key to doing this job, which he loves.The video runs 2:46 and is accompanied by a background essay, standards alignment, and discussion questions. Users who sign up for a free account can save the resource and download the video as well.

2012-06-04

185

14 CFR 121.367 - Maintenance, preventive maintenance, and alterations programs.  

Code of Federal Regulations, 2013 CFR

... (a) Maintenance, preventive maintenance, and alterations performed by...provided for the proper performance of maintenance, preventive maintenance, and alterations; and (c) Each aircraft released to service is...

2013-01-01

186

14 CFR 121.367 - Maintenance, preventive maintenance, and alterations programs.  

Code of Federal Regulations, 2012 CFR

... (a) Maintenance, preventive maintenance, and alterations performed by...provided for the proper performance of maintenance, preventive maintenance, and alterations; and (c) Each aircraft released to service is...

2012-01-01

187

14 CFR 121.367 - Maintenance, preventive maintenance, and alterations programs.  

... (a) Maintenance, preventive maintenance, and alterations performed by...provided for the proper performance of maintenance, preventive maintenance, and alterations; and (c) Each aircraft released to service is...

2014-01-01

188

14 CFR 121.367 - Maintenance, preventive maintenance, and alterations programs.  

Code of Federal Regulations, 2011 CFR

... (a) Maintenance, preventive maintenance, and alterations performed by...provided for the proper performance of maintenance, preventive maintenance, and alterations; and (c) Each aircraft released to service is...

2011-01-01

189

14 CFR 43.3 - Persons authorized to perform maintenance, preventive maintenance, rebuilding, and alterations.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 false Persons authorized to perform maintenance, preventive maintenance, rebuilding, and alterations. 43.3 ...ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE, REBUILDING,...

2010-01-01

190

14 CFR 121.365 - Maintenance, preventive maintenance, and alteration organization.  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 2010-01-01 false Maintenance, preventive maintenance, and alteration organization. 121.365...DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Maintenance, Preventive Maintenance, and Alterations...

2010-01-01

191

14 CFR 43.9 - Content, form, and disposition of maintenance, preventive maintenance, rebuilding, and alteration...  

Code of Federal Regulations, 2010 CFR

... false Content, form, and disposition of maintenance, preventive maintenance, rebuilding, and alteration records (except...ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE, REBUILDING,...

2010-01-01

192

Supporting software maintenance with software engineering tools: A Computed task-technology fit analysis  

Microsoft Academic Search

Management has turned to software engineering tools designed to support software maintenance as a potential solution to maintenance productivity and quality problems. Once adopted by an organisation, however, these tools are often not used. A research model, based on a task–technology fit (TTF) model, is developed to explain the factors which lead to the use of the software maintenance support

Mark T. Dishaw; Diane M. Strong

1998-01-01

193

MANTEMA: a software maintenance methodology based on the ISO\\/IEC 12207 standard  

Microsoft Academic Search

The maintenance of information systems is one of the greatest problems in the software life cycle. It is the most conflictive, costly, less planificable; and the process requiring the most resources. In spite of this reality, most organizations do not possess methodologies for software maintenance. These facts, key to the imperative need of controlling the maintenance process, have carried us

Macario Polo; Mario Piattini; Francisco Ruiz; Coral Calero

1999-01-01

194

Maintenance Decision Support System in Small and Medium Industries: An Approach to New Optimization Model  

Microsoft Academic Search

Summary Maintenance management is one of the main focuses in industrial sector. Many maintenance functions with varieties optimization models have been proposed to aid maintenance management. However, there are limited models have been implemented in small and medium industries (SMIs). The data problems and the gap between theory and practice have always become a reason. In this paper, a new

Zulkifli Tahir; Anton Satria Prabuwono; Hang Tuah Jaya

2008-01-01

195

C-17 integrated avionics maintenance  

Microsoft Academic Search

Application of the existing Integrated Maintenance Information System (IMIS) to the C-17 weapon system can provide significantly improved weapon system maintenance capability, which will result in reduced support system life-cycle costs. IMIS supplies maintenance technicians with direct access to maintenance information systems and databases, including historical data, supply data, technical manuals, and automated training systems. IMIS interrogates built-in test (BIT)

K. Cross; F. Sidhwa

1995-01-01

196

Flight Crew Health Maintenance  

NASA Technical Reports Server (NTRS)

The health maintenance program for commercial flight crew personnel includes diet, weight control, and exercise to prevent heart disease development and disability grounding. The very high correlation between hypertension and overweight in cardiovascular diseases significantly influences the prognosis for a coronary prone individual and results in a high rejection rate of active military pilots applying for civilian jobs. In addition to physical fitness the major items stressed in pilot selection are: emotional maturity, glucose tolerance, and family health history.

Gullett, C. C.

1970-01-01

197

New Technologies for Maintenance  

Microsoft Academic Search

For years, maintenance has been treated as a dirty, boring and ad hoc job. It’s seen as critical for maintaining productivity but has yet to be recognized as a key component of revenue generation.\\u000a The question most often asked is “Why do we need to maintain things regularly?” The answer is “To keep things as reliable\\u000a as possible.” However, the

Jay Lee; Haixia Wang

198

Maintenance Funding Guide January, 2014  

E-print Network

Maintenance Funding Guide January, 2014 #12;About the Facilities Management Maintenance Funding Guide The Facilities Management Maintenance Funding Guide provides our customers with a list of services provided, differentiating between those services centrally funded (paid for by state funds) for state

Rose, Michael R.

199

AUTOMOTIVE DIESEL MAINTENANCE. PROGRAM OUTLINE.  

ERIC Educational Resources Information Center

INFORMATIONAL TOPICS COVERED IN THE TEXT MATERIALS AND SELF-INSTRUCTIONAL BRANCH PROGRAMED TRAINING FILMS FOR A 2-YEAR, 55 MODULE PROGRAM IN AUTOMOTIVE DIESEL MAINTENANCE ARE GIVEN. THE 30 MODULES FOR "AUTOMOTIVE DIESEL MAINTENANCE 1" ARE AVAILABLE AS VT 005 655 - VT 005 684, AND THE 25 MODULES FOR "AUTOMOTIVE DIESEL MAINTENANCE 2" ARE AVAILABLE…

Human Engineering Inst., Cleveland, OH.

200

PREVENTIVE MAINTENANCE. HONEYWELL PLANNING GUIDE.  

ERIC Educational Resources Information Center

THIS HONEYWELL PAMPHLET DISCUSSES SOME ASPECTS OF PREVENTIVE MAINTENANCE OF AUTOMATIC CONTROLS, HEATING, VENTILATING, AND AIR CONDITIONING, AND COMPARES IN-PLANT WITH CONTRACT SERVICE, CONCLUDING THAT CONTRACT SERVICE IS PREFERABLE AND DESCRIBING A NUMBER OF MAINTENANCE PLANS WHICH THEY FURNISH. PREVENTIVE MAINTENANCE PROVIDES--(1) MORE EFFICIENT…

Honeywell, Inc., Minneapolis, Minn.

201

14 CFR 145.217 - Contract maintenance.  

Code of Federal Regulations, 2010 CFR

...A certificated repair station may contract a maintenance function pertaining to an article to a noncertificated...type-certificated product following contract maintenance, preventive maintenance, or...

2010-01-01

202

Probabilistic Weather Forecasting for Winter Road Maintenance  

Microsoft Academic Search

Abstract Road maintenance is one of the main problems Departments of Transportation face during winter time. Anti-icing, i.e. applying chemicals to the road to prevent ice formation, is often used to keep the roads free of ice. Given the preventive nature of anti-icing, accurate predictions of road ice are needed. Currently, anti-icing decisions are usually based on deterministic weather forecasts.

Veronica J. Berrocal; Adrian E. Raftery; Tilmann Gneiting; Richard C. Steed

2010-01-01

203

Multiple Scales and the Maintenance of Biodiversity  

Microsoft Academic Search

The problem of multiple scales permeates the study of ecological process and pattern, uniting aspects of space, time, and\\u000a organizational complexity. In particular, it supports the maintenance of biological diversity, allowing for the magnification\\u000a of underlying patterns of variation in the physical environment to create many resources from few, through the evolutionary\\u000a diversification of species' niches and life histories. Specialization

Simon A. Levin

2000-01-01

204

14 CFR 91.407 - Operation after maintenance, preventive maintenance, rebuilding, or alteration.  

Code of Federal Regulations, 2012 CFR

...maintenance, preventive maintenance, rebuilding, or...person may operate any aircraft that has undergone maintenance, preventive maintenance...certificate flies the aircraft, makes an operational check of the maintenance performed or...

2012-01-01

205

14 CFR 91.407 - Operation after maintenance, preventive maintenance, rebuilding, or alteration.  

Code of Federal Regulations, 2011 CFR

...maintenance, preventive maintenance, rebuilding, or...person may operate any aircraft that has undergone maintenance, preventive maintenance...certificate flies the aircraft, makes an operational check of the maintenance performed or...

2011-01-01

206

14 CFR 91.407 - Operation after maintenance, preventive maintenance, rebuilding, or alteration.  

Code of Federal Regulations, 2013 CFR

...maintenance, preventive maintenance, rebuilding, or...person may operate any aircraft that has undergone maintenance, preventive maintenance...certificate flies the aircraft, makes an operational check of the maintenance performed or...

2013-01-01

207

14 CFR 91.407 - Operation after maintenance, preventive maintenance, rebuilding, or alteration.  

...maintenance, preventive maintenance, rebuilding, or...person may operate any aircraft that has undergone maintenance, preventive maintenance...certificate flies the aircraft, makes an operational check of the maintenance performed or...

2014-01-01

208

14 CFR 145.205 - Maintenance, preventive maintenance, and alterations performed for certificate holders under...  

Code of Federal Regulations, 2011 CFR

...S.-registered aircraft in common carriage...station that performs maintenance, preventive maintenance...maintenance, preventive maintenance, or alterations for...S.-registered aircraft under part 129 must...operator's FAA-approved maintenance program. (d)...

2011-01-01

209

14 CFR 145.205 - Maintenance, preventive maintenance, and alterations performed for certificate holders under...  

Code of Federal Regulations, 2013 CFR

...S.-registered aircraft in common carriage...station that performs maintenance, preventive maintenance...maintenance, preventive maintenance, or alterations for...S.-registered aircraft under part 129 must...operator's FAA-approved maintenance program. (d)...

2013-01-01

210

14 CFR 145.205 - Maintenance, preventive maintenance, and alterations performed for certificate holders under...  

Code of Federal Regulations, 2010 CFR

...S.-registered aircraft in common carriage...station that performs maintenance, preventive maintenance...maintenance, preventive maintenance, or alterations for...S.-registered aircraft under part 129 must...operator's FAA-approved maintenance program. (d)...

2010-01-01

211

14 CFR 145.205 - Maintenance, preventive maintenance, and alterations performed for certificate holders under...  

...S.-registered aircraft in common carriage...station that performs maintenance, preventive maintenance...maintenance, preventive maintenance, or alterations for...S.-registered aircraft under part 129 must...operator's FAA-approved maintenance program. (d)...

2014-01-01

212

14 CFR 145.205 - Maintenance, preventive maintenance, and alterations performed for certificate holders under...  

Code of Federal Regulations, 2012 CFR

...S.-registered aircraft in common carriage...station that performs maintenance, preventive maintenance...maintenance, preventive maintenance, or alterations for...S.-registered aircraft under part 129 must...operator's FAA-approved maintenance program. (d)...

2012-01-01

213

Deployment and Maintenance of a Constellation of Satellites: a Benchmark  

Microsoft Academic Search

This paper presents the problem of the management of the deployment and of the maintenance of a constel- lation of satellites, as it has been set by the French space agency (CNES). After an informal presentation, a more formal description, based on the Markov Decision Process (MDP) framework, is provided. Several ap- proaches for dealing with such a problem are

Gerard Verfaillie

214

VSAT maintenance and installation  

NASA Astrophysics Data System (ADS)

Nationwide installation and maintenance of very-small-aperture terminals (VSATs) for satellite communication are explored. Installation methods are discussed, and the cost of installing a VSAT earth station is projected. Included in the discussion are the following issues: (1) how to overcome the local zoning and landlord objections; (2) how to get the material to the roof; (3) how to install the antenna without damaging the roof; (4) where to run the cable; and (5) how to do this when each site has its own installation environment and still hold the price of installation within reasonable bounds.

McBride, Alan L.; Cook, Christopher V.

1988-09-01

215

Revision of certification standards for aviation maintenance personnel  

NASA Technical Reports Server (NTRS)

Part 65, Subparts D and E, of the Federal Aviation Regulations (FAR) identify the certification requirements for aviation mechanics and aviation repairmen. The training, experience, privileges, ratings, recordkeeping, and currency requirements for aviation maintenance personnel are also addressed by those parts of the FAR. The recent emergence of the aging fleet problem and the introduction of new technologies, aircraft, engines, and aeronautical products has caused certain portions of these rules to become obsolete. Further, international political arrangements, such as bilateral airworthiness and maintenance agreements, International Civil Aviation Organization (ICAO) standards, certain international agreements for maintenance personnel training, and mechanic certificate reciprocity, have all impacted on the current regulatory policy.

Vipond, Leslie K.

1992-01-01

216

14 CFR 43.17 - Maintenance, preventive maintenance, and alterations performed on U.S. aeronautical products by...  

Code of Federal Regulations, 2012 CFR

...OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE...U.S.-registered aircraft located in Canada, perform maintenance, preventive maintenance...section, except that an Aircraft Maintenance Engineer may not...

2012-01-01

217

14 CFR 43.17 - Maintenance, preventive maintenance, and alterations performed on U.S. aeronautical products by...  

Code of Federal Regulations, 2013 CFR

...OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE...U.S.-registered aircraft located in Canada, perform maintenance, preventive maintenance...section, except that an Aircraft Maintenance Engineer may not...

2013-01-01

218

14 CFR 43.17 - Maintenance, preventive maintenance, and alterations performed on U.S. aeronautical products by...  

Code of Federal Regulations, 2011 CFR

...OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE...U.S.-registered aircraft located in Canada, perform maintenance, preventive maintenance...section, except that an Aircraft Maintenance Engineer may not...

2011-01-01

219

Maintenance and supply options  

NASA Technical Reports Server (NTRS)

The object of the Maintenance and Supply Option was to develop a high level operational philosophy related to maintenance and supply operations and incorporate these concepts into the Lunar Base Study. Specific products to be generated during this task were three trade studies and a conceptual design of the Logistic Supply Module. The crew size study was performed to evaluate crew sizes from the baseline size of four to a crew size of eight and determine the preferred crew size. The second trade study was to determine the impact of extending surface stay times and recommend a preferred duration of stay time as a function of crew, consumables, and equipment support capabilities. The third trade study was an evaluation of packaging and storage methods to determine the preferred logistics approach to support the lunar base. A modified scenario was developed and served as the basis of the individual trade studies. Assumptions and guidelines were also developed from experience with Apollo programs, Space Shuttle operations, and Space Station studies. With this information, the trade studies were performed and a conceptual design for the Logistic Supply Module was developed.

1988-01-01

220

Space shuttle maintenance program planning document  

NASA Technical Reports Server (NTRS)

A means for developing a space shuttle maintenance program which will be acceptable to the development centers, the operators (KSC and AF), and the manufacturer is presented. The general organization and decision processes for determining the essential scheduled maintenance requirements for the space shuttle orbiter are outlined. The development of initial scheduled maintenance programs is discussed. The remaining maintenance, that is non-scheduled or non-routine maintenance, is directed by the findings of the scheduled maintenance program and the normal operation of the shuttle. The remaining maintenance consists of maintenance actions to correct discrepancies noted during scheduled maintenance tasks, nonscheduled maintenance, normal operation, or condition monitoring.

Brown, D. V.

1972-01-01

221

TCMS operations and maintenance philosophy  

NASA Technical Reports Server (NTRS)

The purpose is to describe the basic philosophies of operating and maintaining the Test, Control, and Monitor System (TCMS) equipment. TCMS is a complex and sophisticated checkout system. Operations and maintenance processes developed to support it will be based upon current experience, but will be focused on the specific needs of TCMS in support of Space Station Freedom Program (SSFP) and related activities. An overview of the operations and maintenance goals and philosophies are presented. The assumptions, roles and responsibilities, concepts and interfaces for operation, on-line maintenance, off-line support, and Operations and Maintenance (O&M) personnel training on all TCMS equipment located at KSC are described.

Buehler, David P.; Griffin, Rock E.

1992-01-01

222

Sustainability of green space maintenance  

E-print Network

In Japan, recent changes in socio-economic and political structures -- decreasing tax revenue, declining communication among community members, and privatization of public services-- have influenced existing maintenance ...

Nomura, Wataru

2011-01-01

223

The NEW Good School Maintenance. A Manual of Programs and Procedures for Buildings, Grounds, and Equipment. Second Edition: Revised and Expanded.  

ERIC Educational Resources Information Center

This manual is designed to fill two distinct needs in the school maintenance field: (1) a text or resource in training new maintenance staff members and in staff development, and (2) a reference source for the routine tasks and problems encountered in school sanitation and maintenance. Section 1 covers the basics of good school maintenance,…

Harroun, Jack T., Ed.

224

Insect maintenance and transmission.  

PubMed

Phytoplasmas are plant pathogens of huge economic importance due to responsibility for crop yield losses worldwide. Institutions around the world are trying to understand and control this yield loss at a time when food security is high on government agendas. In order to fully understand the mechanisms of phytoplasma infection and spread, more insect vector and phytoplasma colonies will need to be established for research worldwide. Rearing and study of these colonies is essential in the research and development of phytoplasma control measures. This chapter highlights general materials and methods for raising insect vector colonies and maintenance of phytoplasmas. Specific methods of rearing the maize leafhopper and maize bushy stunt phytoplasma and the aster leafhopper and aster yellows phytoplasma strain witches' broom are also included. PMID:22987405

Kingdom, Heather

2013-01-01

225

Nonlinear least squares and super resolution  

Microsoft Academic Search

Digital super resolution is a term used to describe the inverse problem of reconstructing a high resolution image from a set of known low resolution images, each of which is shifted by subpixel displacements. Simple models assume the subpixel displacements are known, but if the displacements are not known then nonlinear approaches must be used to jointly find the displacements

Julianne Chung; J. G. Nagy

2008-01-01

226

Illinois Occupational Skill Standards: Industrial Maintenance General Maintenance Cluster.  

ERIC Educational Resources Information Center

These skill standards for the industrial maintenance general maintenance cluster are intended to be a guide to workforce preparation program providers in defining content for their programs and to employers to establish the skills and standards necessary for job acquisition. An introduction provides the Illinois perspective; Illinois Occupational…

Illinois Occupational Skill Standards and Credentialing Council, Carbondale.

227

Maintenance Audit through Value Analysis Technique: A Case Study  

NASA Astrophysics Data System (ADS)

The increase in competitiveness, technological changes and the increase in the requirements of quality and service have forced a change in the design and application of maintenance, as well as the way in which it is considered within the managerial strategy. There are numerous maintenance activities that must be developed in a service company. As a result the maintenance functions as a whole have to be outsourced. Nevertheless, delegating this subject to specialized personnel does not exempt the company from responsibilities, but rather leads to the need for control of each maintenance activity. In order to achieve this control and to evaluate the efficiency and effectiveness of the company it is essential to carry out an audit that diagnoses the problems that could develop. In this paper a maintenance audit applied to a service company is developed. The methodology applied is based on the expert systems. The expert system by means of rules uses the weighting technique SMART and value analysis to obtain the weighting between the decision functions and between the alternatives. The expert system applies numerous rules and relations between different variables associated with the specific maintenance functions, to obtain the maintenance state by sections and the general maintenance state of the enterprise. The contributions of this paper are related to the development of a maintenance audit in a service enterprise, in which maintenance is not generally considered a strategic subject and to the integration of decision-making tools such as the weighting technique SMART with value analysis techniques, typical in the design of new products, in the area of the rule-based expert systems.

Carnero, M. C.; Delgado, S.

2008-11-01

228

Solution to data integration problems during isotope ratio measurements by magnetic sector inductively coupled plasma mass spectrometer at medium mass resolution: application to the certification of an enriched 53Cr material by isotope dilution  

NASA Astrophysics Data System (ADS)

The suitability of a single-detector magnetic sector inductively coupled plasma mass spectrometer for low uncertainty Cr isotope ratio measurements was evaluated. Operation at medium mass resolution ( m/? m?4000) was required to eliminate the interferences from polyatomic ions commonly observed on Cr isotope masses. However, the repeatability of the ratios appeared to be far worse than expected and extremely unstable. The mass calibration was found to drift by up to 0.0016 amu on peak center (i.e. ˜12.5% of the peak width) for the duration of a measurement (i.e. 675 s). Moreover, for individual peak signals (0.12-0.36 s duration depending on isotopes) the instabilities observed, particularly for low abundant isotopes, lead to multiple maxima that could potentially complicate the data integration step. However, the major problem turned out to be the instrument software, failing to integrate the data in a reproducible and predictable manner. An 'off line' method of data integration was developed to overcome these problems that led to a nearly tenfold improvement in the repeatability of natural n( 52Cr)/ n( 50Cr) isotope ratio measurements. The stability of the repeatability over 45 min improved by a factor of 2.6, the reproducibility of the ratios improved by more than a factor of 4 and the average ratio changed by ˜0.75% (and by up to 1.5% in the worst case). Under these stabilized conditions, direct isotope dilution could be applied as a primary method of measurement for the certification of the Cr amount content in a 53Cr enriched material. The isotope ratio measurements, whose repeatability varied from 0.1 to 0.7% depending on the value of the ratio, were calibrated (corrected for mass discrimination effects) using the IRMM-625 certified isotopic reference material. Combined uncertainties were estimated for all results following the ISO guide to the expression of uncertainty in measurements. A combined uncertainty (expanded, with k=2) on the Cr amount content of less than 0.6% relative was achieved, where the repeatability of the isotope ratio measurements accounted for less than 1% of this value.

Trešl, I.; Quétel, C. R.; Taylor, P. D. P.

2003-03-01

229

Preventative maintenance for control systems  

NASA Astrophysics Data System (ADS)

Preventative maintenance of the control systems should be performed on a required interval. Most manuacturers specify 6 to 12 month intervals. However, inspections can often be accomplished when the control unit or mechanical systems are out of service for a malfunction repair. A procedural checklist for proper maintenance is given.

Corbett, G. O.

1985-05-01

230

Business Development - Predictive Maintenance Products  

E-print Network

BUSINESS DEVELOPMENT - PREDICTIVE MAINTENANCE PRODUCTS Phillip Sceiczina, ifm efector, inc. In this time of global competitiveness, more companies are focusing on reducing manufacturing costs to increase profits. Energy costs can be a... BUSINESS DEVELOPMENT - PREDICTIVE MAINTENANCE PRODUCTS Phillip Sceiczina, ifm efector, inc. In this time of global competitiveness, more companies are focusing on reducing manufacturing costs to increase profits. Energy costs can be a...

Sceiczina, P.

2005-01-01

231

Modern Method for Preventive Maintenance  

ERIC Educational Resources Information Center

Describes a system at Michigan State University that comprises 16 separate programs and schedules 25,000 manhours of preventive maintenance. With information about preventive maintenance for over 100,000 units stored in its computer, the university saves personnel, time, and energy. (Author/MLF)

Wilson, Howard D.

1974-01-01

232

Automated System Programs Preventive Maintenance.  

ERIC Educational Resources Information Center

A preventive maintenance system provides for the monitoring and inspection of school building elements in a programmed way through an automatic checklist. Utility cost savings are expected along with reduction of travel and wait time, and measurable standards of performance for all maintenance and repair work. (MLF)

Locke, Richard C.

1987-01-01

233

Human systems and aircraft maintenance  

Microsoft Academic Search

Research in normal operational environments indicates that the formal requirements for the aircraft maintenance system are frequently not fully or effectively implemented in practice. This gives rise to a pervasive ‘double standard’ with no effective means of reconciling official and unofficial operational practice. A systems strategy for human-centred management in aircraft maintenance is being developed in a number of European

Nick McDonald

2001-01-01

234

PC proliferation: Minimizing corporate risk through planning for application maintenance  

SciTech Connect

The rapid proliferation of personal computers, offering tremendous productivity gains for the knowledge worker, often creates new application maintenance tasks. Specific concerns include security, data integrity, and access authorization. Distributed networks require security and communication systems. Distributed data entry requires file servers, network support personnel, and synchronization methods to preserve the integrity of corporate data. Much PC software which must be maintained will be developed outside of standard-imposing environments and without benefit of formal training. A recommended method for limiting future maintenance problems is the formation of a staff possessing skills specific to problem solving in the areas mentioned and functioning as PC consultants for the area of the knowledge worker.

Shafer, L.I.

1987-01-01

235

Super-Resolution through Neighbor Embedding  

Microsoft Academic Search

In this paper, we propose a novel method for solv- ing single-image super-resolution problems. Given a low-resolution image as input, we recover its high- resolution counterpart using a set of training exam- ples. While this formulation resembles other learning- based methods for super-resolution, our method has been inspired by recent manifold learning methods, par- ticularly locally linear embedding (LLE). Specifically,

Hong Chang; Dit-yan Yeung; Yimin Xiong

2004-01-01

236

1980 Resolutions: National Association for Asian and Pacific American Education.  

ERIC Educational Resources Information Center

This paper contains nineteen resolutions adopted by the National Association for Asian and Pacific American Education (NAAPAE). The resolutions concern (1) the maintenance of Asian/Pacific American linguistic and cultural traditions by educational institutions, (2) the support of Asian/Pacific American studies programs, (3) NAAPAE support of…

National Association for Asian and Pacific American Education, Berkeley, CA.

237

A computationally efficient optimal maintenance scheduling method  

SciTech Connect

This paper addresses the optimal preventive maintenance scheduling problem (OMSP). The importance of OMSP is due to the fact that system reliability and operating cost of an electric utility are affected by the maintenance outage of generating facilities. The authors present a multi-component objective function consisting of reliability and production cost which incorporates uncertainties such as load uncertainties and forced outages of generating units. Dynamic Programming (DP) which is most suitable for sequential decision problems is used as a framework to solve the OMSP. The dimensionality problem, a serious drawback of DP, is reduced by converting it into an iteratively, monotonically converging technique of DP successive approximations (DPSA). To further reduce the computational time, the stage cost function (reliability index LOLP and production cost) is evaluated by cumulant method. This method is an order of magnitude faster than the classical Booth-Baleriaux method. The approach has been programmed on a VAX 11/780 and applied to a twenty-one unit system. A scheduling horizon of one year and a stage length of one week were used. The results show that reliability is a more appropriate objective function than production cost.

Yamayee, Z.; Sidenblad, K.; Yoshimura, M.

1983-02-01

238

Asbestos Exposures of Building Maintenance Personnel  

Microsoft Academic Search

We have analyzed the maintenance logs maintained by owners of buildings containing asbestos fireproofing and subject to operations and maintenance (O&M) programs to evaluate the risk to maintenance personnel from exposure to airborne asbestos. The logs were kept to document protective measures and exposures of maintenance personnel as they performed routine maintenance during the 1991–1992 period. Four of the buildings

Morton Corn; Bill McArthur; Michael Dellarco

1994-01-01

239

Robots for Aircraft Maintenance  

NASA Technical Reports Server (NTRS)

Marshall Space Flight Center charged USBI (now Pratt & Whitney) with the task of developing an advanced stripping system based on hydroblasting to strip paint and thermal protection material from Space Shuttle solid rocket boosters. A robot, mounted on a transportable platform, controls the waterjet angle, water pressure and flow rate. This technology, now known as ARMS, has found commercial applications in the removal of coatings from jet engine components. The system is significantly faster than manual procedures and uses only minimal labor. Because the amount of "substrate" lost is minimal, the life of the component is extended. The need for toxic chemicals is reduced, as is waste disposal and human protection equipment. Users of the ARMS work cell include Delta Air Lines and the Air Force, which later contracted with USBI for development of a Large Aircraft Paint Stripping system (LARPS). LARPS' advantages are similar to ARMS, and it has enormous potential in military and civil aircraft maintenance. The technology may also be adapted to aircraft painting, aircraft inspection techniques and paint stripping of large objects like ships and railcars.

1993-01-01

240

Symbolic Constraint Maintenance Grid  

NASA Technical Reports Server (NTRS)

Version 3.1 of Symbolic Constraint Maintenance Grid (SCMG) is a software system that provides a general conceptual framework for utilizing pre-existing programming techniques to perform symbolic transformations of data. SCMG also provides a language (and an associated communication method and protocol) for representing constraints on the original non-symbolic data. SCMG provides a facility for exchanging information between numeric and symbolic components without knowing the details of the components themselves. In essence, it integrates symbolic software tools (for diagnosis, prognosis, and planning) with non-artificial-intelligence software. SCMG executes a process of symbolic summarization and monitoring of continuous time series data that are being abstractly represented as symbolic templates of information exchange. This summarization process enables such symbolic- reasoning computing systems as artificial- intelligence planning systems to evaluate the significance and effects of channels of data more efficiently than would otherwise be possible. As a result of the increased efficiency in representation, reasoning software can monitor more channels and is thus able to perform monitoring and control functions more effectively.

James, Mark

2006-01-01

241

14 CFR 145.213 - Inspection of maintenance, preventive maintenance, or alterations.  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 false Inspection of maintenance, preventive maintenance, or alterations. 145.213 Section...Operating Rules § 145.213 Inspection of maintenance, preventive maintenance, or alterations....

2010-01-01

242

14 CFR 135.437 - Authority to perform and approve maintenance, preventive maintenance, and alterations.  

Code of Federal Regulations, 2011 CFR

...PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance...as provided in the maintenance manual of the other...approve any airframe, aircraft engine, propeller...return to service after maintenance, preventive...

2011-01-01

243

14 CFR 135.433 - Maintenance and preventive maintenance training program.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 2012-01-01 false Maintenance and preventive maintenance training program. 135.433 Section...AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and...

2012-01-01

244

14 CFR 135.437 - Authority to perform and approve maintenance, preventive maintenance, and alterations.  

Code of Federal Regulations, 2013 CFR

...PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance...as provided in the maintenance manual of the other...approve any airframe, aircraft engine, propeller...return to service after maintenance, preventive...

2013-01-01

245

14 CFR 135.423 - Maintenance, preventive maintenance, and alteration organization.  

...2014-01-01 2014-01-01 false Maintenance, preventive maintenance, and alteration organization. 135.423...AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and...

2014-01-01

246

14 CFR 43.3 - Persons authorized to perform maintenance, preventive maintenance, rebuilding, and alterations.  

Code of Federal Regulations, 2012 CFR

...DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE...or perform preventive maintenance on an aircraft, airframe, aircraft...may perform preventive maintenance on any aircraft owned or operated by...

2012-01-01

247

14 CFR 135.423 - Maintenance, preventive maintenance, and alteration organization.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 2012-01-01 false Maintenance, preventive maintenance, and alteration organization. 135.423...AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and...

2012-01-01

248

14 CFR 135.437 - Authority to perform and approve maintenance, preventive maintenance, and alterations.  

Code of Federal Regulations, 2012 CFR

...PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance...as provided in the maintenance manual of the other...approve any airframe, aircraft engine, propeller...return to service after maintenance, preventive...

2012-01-01

249

14 CFR 135.433 - Maintenance and preventive maintenance training program.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 2013-01-01 false Maintenance and preventive maintenance training program. 135.433 Section...AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and...

2013-01-01

250

14 CFR 135.425 - Maintenance, preventive maintenance, and alteration programs.  

...GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and...for the proper performance of maintenance, preventive maintenance, and alterations; and (c) Each aircraft released to service is...

2014-01-01

251

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

...Management § 91.1433 CAMP: Maintenance and preventive maintenance training program. Each program manager who maintains program aircraft under a CAMP or a person performing maintenance or preventive maintenance...

2014-01-01

252

14 CFR 135.425 - Maintenance, preventive maintenance, and alteration programs.  

Code of Federal Regulations, 2011 CFR

...GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and...for the proper performance of maintenance, preventive maintenance, and alterations; and (c) Each aircraft released to service is...

2011-01-01

253

14 CFR 135.437 - Authority to perform and approve maintenance, preventive maintenance, and alterations.  

...PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance...as provided in the maintenance manual of the other...approve any airframe, aircraft engine, propeller...return to service after maintenance, preventive...

2014-01-01

254

14 CFR 135.423 - Maintenance, preventive maintenance, and alteration organization.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 2011-01-01 false Maintenance, preventive maintenance, and alteration organization. 135.423...AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and...

2011-01-01

255

14 CFR 135.433 - Maintenance and preventive maintenance training program.  

...2014-01-01 2014-01-01 false Maintenance and preventive maintenance training program. 135.433 Section...AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and...

2014-01-01

256

14 CFR 135.423 - Maintenance, preventive maintenance, and alteration organization.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 2013-01-01 false Maintenance, preventive maintenance, and alteration organization. 135.423...AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and...

2013-01-01

257

14 CFR 43.3 - Persons authorized to perform maintenance, preventive maintenance, rebuilding, and alterations.  

Code of Federal Regulations, 2011 CFR

...DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE...or perform preventive maintenance on an aircraft, airframe, aircraft...may perform preventive maintenance on any aircraft owned or operated by...

2011-01-01

258

14 CFR 135.425 - Maintenance, preventive maintenance, and alteration programs.  

Code of Federal Regulations, 2013 CFR

...GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and...for the proper performance of maintenance, preventive maintenance, and alterations; and (c) Each aircraft released to service is...

2013-01-01

259

14 CFR 43.3 - Persons authorized to perform maintenance, preventive maintenance, rebuilding, and alterations.  

Code of Federal Regulations, 2013 CFR

...DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE...or perform preventive maintenance on an aircraft, airframe, aircraft...may perform preventive maintenance on any aircraft owned or operated by...

2013-01-01

260

14 CFR 135.425 - Maintenance, preventive maintenance, and alteration programs.  

Code of Federal Regulations, 2012 CFR

...GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and...for the proper performance of maintenance, preventive maintenance, and alterations; and (c) Each aircraft released to service is...

2012-01-01

261

14 CFR 91.407 - Operation after maintenance, preventive maintenance, rebuilding, or alteration.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 2010-01-01 false Operation after maintenance, preventive maintenance, rebuilding, or alteration. 91.407 ...RULES GENERAL OPERATING AND FLIGHT RULES Maintenance, Preventive Maintenance, and Alterations...

2010-01-01

262

14 CFR 135.433 - Maintenance and preventive maintenance training program.  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 2010-01-01 false Maintenance and preventive maintenance training program. 135.433 Section 135...RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and Alterations...

2010-01-01

263

14 CFR 135.425 - Maintenance, preventive maintenance, and alteration programs.  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 2010-01-01 false Maintenance, preventive maintenance, and alteration programs. 135.425 Section...RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and Alterations...

2010-01-01

264

14 CFR 121.379 - Authority to perform and approve maintenance, preventive maintenance, and alterations.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 false Authority to perform and approve maintenance, preventive maintenance, and alterations. 121.379 Section 121...DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Maintenance, Preventive Maintenance, and Alterations...

2010-01-01

265

14 CFR 135.437 - Authority to perform and approve maintenance, preventive maintenance, and alterations.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 false Authority to perform and approve maintenance, preventive maintenance, and alterations. 135.437 Section 135...RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and Alterations...

2010-01-01

266

14 CFR 121.367 - Maintenance, preventive maintenance, and alterations programs.  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 2010-01-01 false Maintenance, preventive maintenance, and alterations programs. 121.367 Section...DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Maintenance, Preventive Maintenance, and Alterations...

2010-01-01

267

14 CFR 121.375 - Maintenance and preventive maintenance training program.  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 2010-01-01 false Maintenance and preventive maintenance training program. 121.375 Section 121...DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Maintenance, Preventive Maintenance, and Alterations...

2010-01-01

268

14 CFR 135.423 - Maintenance, preventive maintenance, and alteration organization.  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 2010-01-01 false Maintenance, preventive maintenance, and alteration organization. 135.423...RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and Alterations...

2010-01-01

269

Modernizing a Preventive Maintenance Strategy for Facility and Infrastructure Maintenance.  

National Technical Information Service (NTIS)

Properly implemented preventive maintenance (PM) strategies can provide many benefits to an organization in terms of extending equipment life, optimizing resource expenditures, and balancing work schedules. Periodic evaluation of a PM strategy can help id...

R. E. Dotzlaf

2009-01-01

270

A Ubiquitous Computing Environment for Aircraft Maintenance  

E-print Network

. General Terms Design, Economics, Human Factors. Keywords Aircraft maintenance, ubiquitous computing, assetA Ubiquitous Computing Environment for Aircraft Maintenance Matthias Lampe Department of Computer in the area of aircraft maintenance. Extensive requirements regarding quality, safety, and documentation

271

41 CFR 101-39.303 - Maintenance.  

Code of Federal Regulations, 2010 CFR

...Vehicles § 101-39.303 Maintenance. In order to ensure...IFMS) vehicles, safety and preventive maintenance inspections will be performed...comply with the safety and preventive maintenance notices and...

2010-07-01

272

Software Testing and Maintenance 1 Predicate Testing  

E-print Network

for safety critical avionics software in commercial aircraft Software Testing and Maintenance 4 Predicate1 Software Testing and Maintenance 1 Predicate Testing Introduction Basic Concepts Predicate Coverage Program-Based Predicate Testing Summary Software Testing and Maintenance 2 Motivation

Lei, Jeff Yu

273

14 CFR 91.1111 - Maintenance training.  

Code of Federal Regulations, 2011 CFR

... 2011-01-01 false Maintenance training. 91.1111 ...Management § 91.1111 Maintenance training. The program...employees who are responsible for maintenance related to program aircraft undergo appropriate...

2011-01-01

274

14 CFR 91.1111 - Maintenance training.  

... 2014-01-01 false Maintenance training. 91.1111 ...Management § 91.1111 Maintenance training. The program...employees who are responsible for maintenance related to program aircraft undergo appropriate...

2014-01-01

275

14 CFR 91.1111 - Maintenance training.  

Code of Federal Regulations, 2012 CFR

... 2012-01-01 false Maintenance training. 91.1111 ...Management § 91.1111 Maintenance training. The program...employees who are responsible for maintenance related to program aircraft undergo appropriate...

2012-01-01

276

14 CFR 91.1111 - Maintenance training.  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 false Maintenance training. 91.1111 ...Management § 91.1111 Maintenance training. The program...employees who are responsible for maintenance related to program aircraft undergo appropriate...

2010-01-01

277

Optimal scheduling of fighter aircraft maintenance  

E-print Network

The effective scheduling of fighter aircraft maintenance in the Air Force is crucial to overall mission accomplishment. An effective maintenance scheduling policy maximizes the use of maintenance resources and aircraft ...

Cho, Philip Y

2011-01-01

278

Deferred School Maintenance Creates National Crises.  

ERIC Educational Resources Information Center

Describes the cost and causes of the school maintenance "crises"; lists seven questions to determine if a school district has a quality maintenance program; describes consequences of deferred school maintenance in Yuma (Arizona) Union High School District. (PKP)

Geiger, Philip E.

2002-01-01

279

The Intrinsic Value of Campus Maintenance.  

ERIC Educational Resources Information Center

Discusses how an emphasis on student recruitment, combined with deferred maintenance backlogs and maintenance budget cuts, suggest that further study needs to be done on the intrinsic value of campus maintenance. (EV)

Yeatts, G. Dewey

2003-01-01

280

Studying Thermoelectric Oxides using High-Resolution Scanning Transmission Electron Figure 4: a) Atomic resolution Z-  

E-print Network

Studying Thermoelectric Oxides using High-Resolution Scanning Transmission Electron Microscopy 0 the environmental impact, and deliver energy continuously, such as thermo-electric power generation, have often been overlooked. Thermo-electric (TE) power applications offer a potentially cheap, pollution- and maintenance

Ben-Arie, Jezekiel

281

Choice Criteria in Conditional Preventive Maintenance  

NASA Astrophysics Data System (ADS)

The purpose of this study was to improve the availability of production equipment by selecting the best maintenance management method. Corrective maintenance, systematic preventive maintenance and conditional maintenance costs are compared and the Weibull law is used to represent reliability and evaluate maintenance costs. Finally, an example is presented from a flow show factory, and the maintenance servise is shown to be more efficient through better organisation and fewer costs.

Luce, S.

1999-01-01

282

14 CFR 91.1423 - CAMP: Maintenance organization.  

Code of Federal Regulations, 2010 CFR

...maintenance (other than required inspections), preventive maintenance, or alterations, and each person with...required inspections in addition to other maintenance, preventive maintenance, or alterations, must organize the...

2010-01-01

283

46 CFR 185.702 - Maintenance.  

Code of Federal Regulations, 2012 CFR

...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) OPERATIONS Operational Readiness, Maintenance, and Inspection of Lifesaving Equipment § 185.702 Maintenance. (a) The...

2012-10-01

284

46 CFR 185.702 - Maintenance.  

Code of Federal Regulations, 2010 CFR

...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) OPERATIONS Operational Readiness, Maintenance, and Inspection of Lifesaving Equipment § 185.702 Maintenance. (a) The...

2010-10-01

285

Sustainable Operations & Maintenance Implementation Support  

E-print Network

Sustainable Operations & Maintenance Implementation Support (SOMIS) Warner College of Natural in existing and historic buildings. The process provides sustainable recommendations and support for every for ensured performance and sustainability. SOMIS is valuable in that it allows energy effi- ciency measures

286

Maintenance Downtime December 4, 2013  

Date(s):  Wednesday, December 4, 2013 Time:  7 am - 3 pm EST Event Impact:  Due to scheduled maintenance Wednesday, Dec. 4, 2013: The Data Pool, MISR order and browse tools, Reverb, and AMAPS will be ...

2013-12-03

287

Maintenance Downtime October 30, 2013  

Date(s):  Wednesday, October 30, 2013 Time:  8 am - 3 pm EST Event Impact:  Due to scheduled maintenance Wednesday, Oct. 30, 2013: The Data Pool, MISR order and browse tools, Reverb, and AMAPS will be ...

2013-12-03

288

Operation and Maintenance Manual for  

E-print Network

-speed no load to confirm proper function, before use. Maintenance The H.MH-170 has permanently lubricated ball bearings that do not require lubrica- tion. Putting even a small amount of oil into the handpiece can

Kleinfeld, David

289

Contract Service for School Maintenance  

ERIC Educational Resources Information Center

Preventive maintenance can extend useful equipment life in a school building and keep systems running more efficiently. Points to consider before selecting a comprehensive energy management package are listed. (Author/MLF)

Modern Schools, 1976

1976-01-01

290

Condition Based Maintenance (Briefing Charts).  

National Technical Information Service (NTIS)

Condition Based Maintenance Concept: Utilize onboard sensors, data collection, networks, and computer resources to better enable the soldier and the Army to Maintain Vehicle Readiness and reduce cost by proactively pre- empting failures through predictive...

T. Udvare

2008-01-01

291

Online Discovery and Maintenance of Time Series Motifs Abdullah Mueen  

E-print Network

on activity discovery for humans and animals, with applications in elder care [27], surveillance and sportsOnline Discovery and Maintenance of Time Series Motifs Abdullah Mueen University of California The detection of repeated subsequences, time series motifs, is a problem which has been shown to have great

Zordan, Victor

292

Stuttering Therapy: Transfer and Maintenance. Publication No. 19.  

ERIC Educational Resources Information Center

This volume contains six papers presented by speech therapists at a conference dealing with principles and procedures that are crucial to transfer and maintenance of the modification of stuttering and the production of increased fluency. E. G. Conture, in "The General Problem of Change," addresses some of the general issues which affect the…

Speech Foundation of America, Memphis, TN.

293

Application of Hybrid VIKOR Model in Selection of Maintenance Strategy  

Microsoft Academic Search

This paper focuses on the use of Fuzzy Analytic Hierarchy Process (FAHP) and VlseKriterijumska Optimizacija I Kompromisno Resenje in Serbian (VIKOR) to select an optimum maintenance strategy for a textile industry. In the proposed methodology, first the weight of each criterion is calculated by using improved AHP with fuzzy set theory to overcome the problems of unbalanced scale of judgments,

M. Ilangkumaran; S. Kumanan

2012-01-01

294

Immigration and the Maintenance of Local Species Diversity  

Microsoft Academic Search

Explaining the maintenance of high local species diversity in communities governed by competition for space has been a long- standing problem in ecology. We present a simple theoretical model to explore the influence of immigration from an external source on local coexistence, species abundance patterns, and ecosystem pro- cesses in plant communities. The model is built after classical me- tapopulation

Michel Loreau; Nicolas Mouquet

1999-01-01

295

Planning the Size and Organization of KLM's Aircraft Maintenance Personnel  

Microsoft Academic Search

Develops a decision support system (DSS) for the aircraft maintenance department of KLM Royal Dutch Airlines at Schiphol Airport in Amsterdam, Netherlands. Tasks of the department; Support provided by the DSS to management; Analyzing several capacity planning problems related to the size and the organization of the workforce.

M. C. Dijkstra; L. G. Kroon; M. Salomon; Nunen van J. A. E. E; Wassenhove van L. N

1994-01-01

296

Maintenance of Mechanical Equipment in Minnesota Schools, 1968 Survey.  

ERIC Educational Resources Information Center

Results of a one-year research program to study maintenance procedures for operating mechanical equipment were based on the determination of--(1) the present condition and level of performance of operating mechanical equipment, (2) the problems encountered by school administrators and custodial engineers pertaining to operating mechanical…

Larson, R. E.; Rust, L. W.

297

Enhancing SWF for Incremental Association Mining by Itemset Maintenance  

E-print Network

Enhancing SWF for Incremental Association Mining by Itemset Maintenance Chia-Hui Chang and Shi-Li, Taiwan 320 chia@csie.ncu.edu.tw, carry@db.csie.ncu.edu.tw Abstract. Incremental association mining refers algorithm [12], are proposed to solve the problem incremental #12;2 Chia-Hui Chang et al. mining. Both MAAP

Chang, Chia-Hui

298

An application of Laplace transforms to a machine maintenance problem  

E-print Network

during the down period. If a system of machines is characterized by the Poisson arrival times and exponential holding time, then, the system satisfies the following conditions: (1) If a machine is operative at time t, then the probability of its... failure before time i+h is kh. (2) If a machine is not operative at time t, then the probability of it being operative before time t + h is ph. (3) If y(h) is the probability of more than one failure or repair between t and t + h then 1im 1 hmo h ? y...

Boone, James Robert

2012-06-07

299

14 CFR 43.5 - Approval for return to service after maintenance, preventive maintenance, rebuilding, or alteration.  

Code of Federal Regulations, 2010 CFR

...false Approval for return to service after maintenance, preventive maintenance, rebuilding, or alteration. 43.5 Section...ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE, REBUILDING,...

2010-01-01

300

DeltaSky: Optimal Maintenance of Skyline Deletions without Exclusive Dominance Region Generation  

Microsoft Academic Search

This paper addresses the problem of efficient maintenance of a materialized skyline view in response to skyline re- movals. While there has been significant progress on skyline query computation, an equally important but largely unan- swered issue is on the incremental maintenance for skyline deletions. Previous work suggested the use of the so called exclusive dominance region (EDR) to achieve

Ping Wu; Divyakant Agrawal; Ömer Egecioglu; Amr El Abbadi

2007-01-01

301

Guidance on Software Maintenance. Final Report. Reports on Computer Science and Technology.  

ERIC Educational Resources Information Center

Based on informal discussions with personnel at selected federal agencies and private sector organizations and on additional research, this publication addresses issues and problems of software maintenance and suggests actions and procedures which can help software maintenance organizations meet the growing demands of maintaining existing systems.…

Martin, Roger J.; Osborne, Wilma M.

302

Preventive Maintenance Study: A Key Component in Engineering Education to Enhance Industrial Productivity and Competitiveness.  

ERIC Educational Resources Information Center

Suggests that a chief contributor to the continued economic success of the western economies will be the productivity gains available through efficient preventative maintenance planning and argues for appropriate changes in engineering curricula. Describes the formulation of maintenance planning problems and illustrates with numerical examples the…

Nachlas, Joel A.; Cassady, C. Richard

1999-01-01

303

School Renovation and the Importance of Maintenance. [Interview with Charles Boney, Jr.].  

ERIC Educational Resources Information Center

Charles Boney, Jr., Director of Boney Architects, offers his views on school districts that build schools that have to be replaced too soon, general problems concerning renovation of older buildings, and keeping maintenance costs down. He discusses the types of flooring materials school districts should consider using to lower maintenance costs…

Butterfield, Eric

304

Materialized View Maintenance and Integrity Constraint Checking: Trading Space for Time  

E-print Network

Materialized View Maintenance and Integrity Constraint Checking: Trading Space for Time Kenneth A that it is possible to reduce the total time cost of view maintenance by materializing (and maintaining) additional views. We formulate the problem of determining the optimal set of additional views to materialize

Sudarshan, S.

305

Intelligent aircraft maintenance support system using genetic algorithms and case-based reasoning  

Microsoft Academic Search

The maintenance of aircraft components is crucial for avoiding aircraft accidents and aviation fatalities. To provide reliable and effective maintenance support, it is important for the airline companies to utilise previous repair experience with the aid of advanced decision support technology. Case-based reasoning (CBR) is a machine learning method that adapts previous similar cases to solve current problems. To effectively

C. Chiu; N.-H. Chiu; C.-I. Hsu

2004-01-01

306

Reconcile: A Coreference Resolution Research Platform  

SciTech Connect

Despite the availability of standard data sets and metrics, approaches to the problem of noun phrase coreference resolution are hard to compare empirically due to the different evaluation setting stemming, in part, from the lack of comprehensive coreference resolution research platforms. In this tech report we present Reconcile, a coreference resolution research platform that aims to facilitate the implementation of new approaches to coreference resolution as well as the comparison of existing approaches. We discuss Reconcile's architecture and give results of running Reconcile on six data sets using four evaluation metrics, showing that Reconcile's performance is comparable to state-of-the-art systems in coreference resolution.

Stoyanov, V; Cardie, C; Gilbert, N; Riloff, E; Buttler, D; Hysom, D

2009-10-29

307

Multivariate curve resolution in liquid chromatography  

SciTech Connect

Self-modeling curve resolution has been shown to allow resolution of two co-eluting chromatographic peaks without requiring any assumption of an underlying peak shape. The subsequent problem of quantitation of these co-eluting peaks is limited by both the chromatographic resolution (separation in time and difference in elution profile) and by the degree of spectral uniqueness. An experimental system of two water-soluble vitamins has been used to examine the effects of varying chromatographic resolution on the quantitative accuracy of the curve resolution method.

Osten, D.W.; Kowalski, B.R.

1983-12-01

308

Fast Flux Test Facility (FFTF) maintenance provisions  

SciTech Connect

The Fast Flux Test Facility (FFTF) was designed with maintainability as a primary parameter, and facilities and provisions were designed into the plant to accommodate the maintenance function. This paper describes the FFTF and its systems. Special maintenance equipment and facilities for performing maintenance on radioactive components are discussed. Maintenance provisions designed into the plant to enhance maintainability are also described.

Marshall, J.L.

1981-05-01

309

Simulation model for aircraft line maintenance planning  

Microsoft Academic Search

This paper reports results of research that developed a computerized simulation model for the aircraft line maintenance department in Continental Airlines. The original AUTOMOD model that was created duplicated the maintenance operations at Continental's major maintenance station at Newark. Modeling the day-to-day maintenance activities lead to the development of enhanced staffing models and a better understanding of resource requirements on

P. Gupta; M. Bazargan; R. N. McGrath

2003-01-01

310

The problem of pain.  

PubMed

Pain problems, especially posttraumatic headache, are very common following head trauma. Pain may be the most significant problem, more disabling than any brain or other injuries, and interfering with aspects of cognition or other function. However, posttraumatic headache and most other chronic posttraumatic pain problems remain poorly understood. This article reviews fundamental issues that should be considered in understanding the nature of chronic pain including the distinction between acute and chronic pain; neurobiological distinctions between the lateral and medial pain system; nociceptive versus neuropathic or other central pain; sensitization effects; the widely accepted view of chronic pain as a multidimensional subjective experience involving sensory, motivational-affective and cognitive-behavioral components; the problem of mind-body dualism; the role of psychosocial factors in the onset, maintenance, exacerbation or severity of pain; plus issues of response bias and malingering. PMID:14732827

Nicholson, Keith; Martelli, Michael F

2004-01-01

311

Workshop in the sky. [maintenance operations in space  

NASA Technical Reports Server (NTRS)

An evaluation of the historical experience of Apollo, Skylab, and the Space Shuttle shows it to be both feasible and prudent to furnish a minimal capability for Space Station maintenance. The ability to perform orbital replacement unit-related maintenance, as well as opportune in-orbit repair, is believed to be essential for crew and Station survival, mission effectiveness, and maximum productivity. Attention is given to problems associated with mechanical repair, welding, and composite bonding, as well as to recommended tools and procedures.

Levoy, Louis; Reis, Donald F.; Quinn, Alberta

1988-01-01

312

Streamflow Necessary for Environmental Maintenance  

NASA Astrophysics Data System (ADS)

In the last decades, insights from the fields of ecology, geomorphology, and hydrology have been applied to the question of the streamflows necessary for environmental maintenance. For instance, determining the streamflow needed for spawning by salmon or trout requires ascertaining how much water, for how long, and at what time it will be needed? And what flows are necessary for the sustenance of streamside vegetation? Answers to these and similar questions have been sought to minimize environmental degradation in the development or relicensing of water projects, in restoring riverine ecosystems, and in balancing multiple uses for limited water resources. In this contribution, the varieties of environmental maintenance flows applied to rivers are described, as are their fundamental principles. These environmental maintenance flows include flows to maintain aesthetics and recreation, streambed sediment size and its mobility, the channel, its features and continuity, and the floodplain, its wetness regime, and riparian vegetation.

Whiting, Peter J.

313

Autosite.com Repairs - Maintenance  

NSDL National Science Digital Library

A subsection of Autosite.com, a for-profit (from ads, the content is free) information source for auto buyers, the maintenance and repair area offers free and detailed information on auto care and repair that is accessible but not simplistic. In the maintenance section, users will find a preventative maintenance checklist, illustrated guides to fluids and exterior systems, a discussion on tires, and FAQs. The Repair section features troubleshooting tips, an illustrated repair guide, a fairly deep Auto Repair Encyclopedia, and several related links. Whether you are a die-hard do-it-yourselfer or just prefer to be forearmed before taking your car to the mechanics, this site can help.

314

NASA Critical Facilities Maintenance Assessment  

NASA Technical Reports Server (NTRS)

Critical Facilities Maintenance Assessment (CFMA) was first implemented by NASA following the March 2000 overtest of the High Energy Solar Spectroscopic Imager (HESSI) spacecraft. A sine burst dynamic test using a 40 year old shaker failed. Mechanical binding/slippage of the slip table imparted 10 times the planned force to the test article. There was major structural damage to HESSI. The mechanical "health" of the shaker had not been assessed and tracked to assure the test equipment was in good working order. Similar incidents have occurred at NASA facilities due to inadequate maintenance (e.g., rainwater from a leaky roof contaminated an assembly facility that housed a spacecraft). The HESSI incident alerted NASA to the urgent need to identify inadequacies in ground facility readiness and maintenance practices. The consequences of failures of ground facilities that service these NASA systems are severe due to the high unit value of NASA products.

Oberhettinger, David J.

2006-01-01

315

Crafting Elegant Solutions: Strategies for Conflict Resolution.  

ERIC Educational Resources Information Center

The conflict-resolution technique of interpersonal negotiation involves five steps: (1) state your positive intentions; (2) define, analyze, and discuss the problem; (3) summarize progress; (4) explore alternative solutions; and (5) set a time for follow-up. (MLF)

Koch, Susan J.; Decker, Robert H.

1993-01-01

316

Maintenance of photovoltaic power systems. Revision 1. Maintenance manual  

SciTech Connect

This publication establishes standard practices for inspection, testing, and maintenance of photovoltaic power systems at Department of the Navy installations. The practices and procedures are recommended to ensure reliable operation of the power systems. The manual covers photovoltaic-array, battery, voltage-regulator, inverter, and wiring subsystems. In addition, this manual provides a troubleshooting guide and self-study questions and answers.

Hall, M.R.

1985-06-01

317

Aerospace Maintenance Technician Course Volume 2: Aerospace Maintenance  

NSDL National Science Digital Library

This document from SpaceTEC National Aerospace Technical Education Center presents a core readiness course which will serve to prepare individuals entering the aerospace field. The document is 226 pages and includes required proficiencies for aerospace maintenance technicians. Topics include electronic principles, applied mechanics, test and measurements and materials and processes.

Munden, Msgt S.

2011-06-07

318

Balance Problems  

MedlinePLUS

... often, it could be a sign of a balance problem. Balance problems can make you feel unsteady or as ... fall-related injuries, such as hip fracture. Some balance problems are due to problems in the inner ...

319

Supplement: NAACP 69th Annual Convention Resolutions.  

ERIC Educational Resources Information Center

The resolutions listed in this article concern the following topics: the armed services and veterans affairs; civil rights; communication; education; health, hospitals, and welfare; housing; internal affairs; international affairs; labor; political action; youth work; and miscellaneous problems. Emergency resolutions are also included. (MC)

Crisis, 1979

1979-01-01

320

Reciprocal anaphora resolution in Pashto discourse  

Microsoft Academic Search

It is very important for an effective machine translation system to transform the multi-sentential discourses, of a source language, into simple and cohesion free discourses. Anaphora resolution is the predicament in computational linguistics that is responsible for the alleged problem. This paper is about the lexical (reciprocal) anaphora resolution in Pashto language and presents an algorithm that is based on

Rahman Ali; M. A. Khan; M. Bilal; Ihsan Rabbi

2008-01-01

321

Patrol police officer conflict resolution processes  

Microsoft Academic Search

This research provides a typology of police patrol conflict\\/dispute resolution processes\\/methodologies for addressing social interaction disputes (i.e., public disputes, community-based disputes, and interpersonal disputes). The methodologies that represent the focal point of the present research are mediation, problem solving, and problem management. These represent nonconventional methods of conflict\\/dispute resolution that can be practically and effectively applied by police officers in

Christopher Cooper

1997-01-01

322

A combinational theory for maintenance of sex  

PubMed Central

Sexual reproduction implies high costs, but it is difficult to give evidence for evolutionary advantages that would explain the predominance of meiotic sex in eukaryotes. A combinational theory discussing evolution, maintenance and loss of sex may resolve the problem. The main function of sex is the restoration of DNA and consequently a higher quality of offspring. Recombination at meiosis evolved, perhaps, as a repair mechanism of DNA strand damages. This mechanism is most efficient for DNA restoration in multicellular eukaryotes, because the initial cell starts with a re-optimized genome, which is passed to all the daughter cells. Meiosis acts also as creator of variation in haploid stages, in which selection can purge most efficiently deleterious mutations. A prolonged diploid phase buffers the effects of deleterious recessive alleles as well as epigenetic defects and is thus optimal for prolonged growth periods. For complex multicellular organisms, the main advantage of sexuality is thus the alternation of diploid and haploid stages, combining advantages of both. A loss of sex is constrained by several, partly group-specific, developmental features. Hybridization may trigger shifts from sexual to asexual reproduction, but crossing barriers of the parental sexual species limit this process. For the concerted break-up of meiosis-outcrossing cycles plus silencing of secondary features, various group-specific changes in the regulatory system may be required. An establishment of asexuals requires special functional modifications and environmental opportunities. Costs for maintenance of meiotic sex are consequently lower than a shift to asexual reproduction. PMID:19623209

Horandl, E

2010-01-01

323

Tutoring electronic troubleshooting in a simulated maintenance work environment  

NASA Technical Reports Server (NTRS)

A series of intelligent tutoring systems, or intelligent maintenance simulators, is being developed based on expert and novice problem solving data. A graded series of authentic troubleshooting problems provides the curriculum, and adaptive instructional treatments foster active learning in trainees who engage in extensive fault isolation practice and thus in conditionalizing what they know. A proof of concept training study involving human tutoring was conducted as a precursor to the computer tutors to assess this integrated, problem based approach to task analysis and instruction. Statistically significant improvements in apprentice technicians' troubleshooting efficiency were achieved after approximately six hours of training.

Gott, Sherrie P.

1987-01-01

324

14 CFR 121.379 - Authority to perform and approve maintenance, preventive maintenance, and alterations.  

...airworthiness maintenance program and maintenance manual of the other certificate...certificate holder may approve any aircraft, airframe, aircraft engine, propeller, or appliance for return to service after maintenance, preventive...

2014-01-01

325

14 CFR 121.379 - Authority to perform and approve maintenance, preventive maintenance, and alterations.  

Code of Federal Regulations, 2013 CFR

...airworthiness maintenance program and maintenance manual of the other certificate...certificate holder may approve any aircraft, airframe, aircraft engine, propeller, or appliance for return to service after maintenance, preventive...

2013-01-01

326

14 CFR 125.245 - Organization required to perform maintenance, preventive maintenance, and alteration.  

... false Organization required to perform maintenance, preventive maintenance, and alteration. 125.245 Section...AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance § 125.245 Organization required...

2014-01-01

327

14 CFR 121.379 - Authority to perform and approve maintenance, preventive maintenance, and alterations.  

Code of Federal Regulations, 2012 CFR

...airworthiness maintenance program and maintenance manual of the other certificate...certificate holder may approve any aircraft, airframe, aircraft engine, propeller, or appliance for return to service after maintenance, preventive...

2012-01-01

328

14 CFR 125.245 - Organization required to perform maintenance, preventive maintenance, and alteration.  

Code of Federal Regulations, 2011 CFR

... false Organization required to perform maintenance, preventive maintenance, and alteration. 125.245 Section...AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance § 125.245 Organization required...

2011-01-01

329

14 CFR 125.245 - Organization required to perform maintenance, preventive maintenance, and alteration.  

Code of Federal Regulations, 2012 CFR

... false Organization required to perform maintenance, preventive maintenance, and alteration. 125.245 Section...AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance § 125.245 Organization required...

2012-01-01

330

14 CFR 125.245 - Organization required to perform maintenance, preventive maintenance, and alteration.  

Code of Federal Regulations, 2013 CFR

... false Organization required to perform maintenance, preventive maintenance, and alteration. 125.245 Section...AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance § 125.245 Organization required...

2013-01-01

331

14 CFR 125.245 - Organization required to perform maintenance, preventive maintenance, and alteration.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 false Organization required to perform maintenance, preventive maintenance, and alteration. 125.245 Section 125...RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance § 125.245 Organization required to...

2010-01-01

332

Mother Tongue Maintenance: The Debate.  

ERIC Educational Resources Information Center

This debate presents two viewpoints on mother tongue maintenance: (1) that all individuals have a fundamental right to education in their native tongue, and that multilingual societies should actively promote multilingualism for all individuals; and (2) that the multitude of languages and rapid economic development in many countries calls for…

Skutnabb-Kangas, Tove; Sridhar, Kamal

1994-01-01

333

New Directions in Maintenance Simulation.  

ERIC Educational Resources Information Center

A two-phase effort was conducted to design and evaluate a maintenance simulator which incorporated state-of-the-art information in simulation and instructional technology. The particular equipment selected to be simulated was the 6883 Convert/Flight Controls Test Station. Phase I included a generalized block diagram of the computer-trainer, the…

Miller, Gary G.

334

Maintenance of photovoltaic power systems  

SciTech Connect

This publication establishes standard practices for inspection, testing, and maintenance of photovoltaic power systems at Department of the Navy installations. The practices and procedures are recommended to ensure reliable operation of the power systems. The manual covers photovoltaic-array, battery, voltage-regulator, inverter, and wiring subsystems. In addition, this manual provides a troubleshooting guide and self-study questions and answers.

Hall, M.R.

1984-08-01

335

Electrical Mechanical Maintenance. Instructor's Guide.  

ERIC Educational Resources Information Center

This instructor's guide describes the development of a sixteen-week postsecondary course in electrical mechanical maintenance. Following introductory sections that provide background information and a course summary, the third section describes the instructional model used in the course. Section 4 presents an overview of instructional media used…

Santa Clara County Superintendent of Schools, San Jose, CA.

336

The Benefits of Health Maintenance.  

ERIC Educational Resources Information Center

The article focuses on the merits of a comprehensive, medically-oriented health maintenance/risk assessment program, and suggests that such conditions as heart disease, cancer, and arteriosclerosis can be prevented or postponed through proper nutrition, weight control, exercise, smoking cessation, and stress management. (Author/CB)

Rosenstein, Alan H.

1987-01-01

337

Building and Home Maintenance Services.  

ERIC Educational Resources Information Center

This task-based curriculum guide for building and home maintenance services is intended to help the teacher develop a classroom management system where students learn by doing. Introductory materials include a Dictionary of Occupational Titles job code and title sheet, a career ladder, a matrix relating duty/task numbers to job titles, and a task…

Michigan State Univ., East Lansing. Coll. of Agriculture and Natural Resources Education Inst.

338

Traffic Sign Maintenance/ Management Handbook  

E-print Network

Traffic Sign Maintenance/ Management Handbook #12;Acknowledgements #12;Document Information Manual on Uniform Traffic Control Devices ­ Background Minnesota Manual on Uniform Traffic Control Devices MN MUTCD May 2005 #12;Minnesota Manual on Uniform Traffic Control Devices #12;Old Guidelines New

Minnesota, University of

339

VFT maintenance and operating performance  

Microsoft Academic Search

A Variable Frequency Transformer (VFT) has been in full commercial operation on the Hydro-Quebec TransEnergie system since December of 2004. The VFT is an interconnection device that is based on widely established technology. However, because the application of some equipment is unique, the maintenance requirements associated with VFT operation and ownership have become an item of interest. This paper provides

Paul Marken; Jim Roedel; Denis Nadeau; Dan Wallace; Hervé Mongeau

2008-01-01

340

Methadone maintenance treatment: An update  

Microsoft Academic Search

Available data (this review includes old major articles and recent articles) show that, although results are heterogenous, methadone maintenance treatments (MMTs) have a real efficiency not only to reduce illicit opiate abuse (50–80% of patients under MMT did not use heroin in the preceding month) but also to reduce criminality, HIV risks and mortality, and to improve social rehabilitation, without

Gilles Bertschy

1995-01-01

341

Sound Equipment Workshop Operation & Maintenance  

E-print Network

Sound Equipment Workshop June 2010 Operation & Maintenance #12;· Agenda ­ Equipment List Microphone Categories and Polar Patterns­ Microphone Categories and Polar Patterns ­ Microphone Models ­ Recording Sound Z H2­ Zoom H2 ­ Zoom H4N ­ Sound Effects Libraryy ­ Questions and Pack-up Sound Equipment Workshop

342

Laboratory Maintenance of Acinetobacter baumannii.  

PubMed

Acinetobacter baumannii has recently drawn great interest in the microbiology research community due to the increase in clinical antibiotic resistance of this organism, and persistence of this bacterial species in the hospital environment. This unit outlines protocols for the growth and maintenance of A. baumannii in the laboratory. © 2014 by John Wiley & Sons, Inc. PMID:25367273

Jacobs, Anna C; Zurawski, Daniel V

2014-01-01

343

Checklist for School Maintenance Surveys.  

ERIC Educational Resources Information Center

This document is a simple 34-category checklist to be used by technicians conducting maintenance surveys. Categories includes: roadways & parking lots; site appearance; site utilities; exterior appearance; playground equipment; exterior structural conditions; gutters and downspouts; windows and caulking; sidewalks; entryways and exit doors; roof…

Maryland State Dept. of Education, Baltimore.

344

Late referral for maintenance dialysis  

Microsoft Academic Search

A study of patients accepted for maintenance dialysis at the Oxford renal unit in 1981 showed that 23 out of 55 patients were referred late, very shortly before the need for dialysis. This pattern of referral was associated with a higher morbidity at the start of dialysis which may have been preventable. In the late referral group 16 patients (70%)

P J Ratcliffe; R E Phillips; D O Oliver

1984-01-01

345

Insomnia in maintenance haemodialysis patients  

Microsoft Academic Search

Background. Studies in the last 15 years have shown a high prevalence of sleep disorders in maintenance haemodialysis (HD) patients. Methods. To investigate whether the new technical and therapeutic advances of the last decade have had a positive impact on sleep disturbances in HD patients: 694 patients (384 males, 310 females) were surveyed using a specific questionnaire; their clinical, lifestyle

Massimo Sabbatini; Bruno Minale; Anna Crispo; Antonio Pisani; Annalisa Ragosta; Raffaela Esposito; Antonio Cesaro; Bruno Cianciaruso; Vittorio E. Andreucci

2002-01-01

346

Avionics Maintenance Technology Program Guide.  

ERIC Educational Resources Information Center

This program guide presents the avionics maintenance technology curriculum for technical institutes in Georgia. The general information section contains the following for both the diploma program and the associate degree program: purpose and objectives; program description, including admissions, typical job titles, and accreditation and…

Georgia Univ., Athens. Dept. of Vocational Education.

347

Cost reduction during maintenance & repair  

Microsoft Academic Search

Low-technology equipment test and repair is typically composed of numerous manual actions performed in a series of predetermined steps. This paper describes a recently deployed rework\\/production system that eliminates all of the superfluous 'process control and tracking' effort required during operational system test and maintenance, and allows support personnel to focus on their primary task of testing and repairing operational

H. Smith

2003-01-01

348

Computer-Assisted School Maintenance  

ERIC Educational Resources Information Center

At thousands of schools and universities, years of economic troubles have led to repeated budget cuts. The reductions typically fall disproportionately on maintenance departments, where cuts are viewed as less critical than those that directly affect classroom instruction. And so nearly every facility manager at an education institution faces a…

Kennedy, Mike

2012-01-01

349

Mathematical Problems of Thermoacoustic Tomography  

E-print Network

Thermoacoustic tomography (TAT) is a newly emerging modality in biomedical imaging. It combines the good contrast of electromagnetic and good resolution of ultrasound imaging. The mathematical model of TAT is the observability problem for the wave...

Nguyen, Linh V.

2010-10-12

350

Weight loss maintenance: A review on dietary related strategies  

PubMed Central

Background: Weight regain after weight loss is a common problem for all those obese or overweight who have had a recent weight loss. Different cures such as diet therapy, behavioral therapy, exercise or a mixture of them have been advised as solutions. The purpose of this review is to find the best diet or eating pattern to maintain a recent weight loss. Materials and Methods: We searched in PubMed and SCOPUS by using the following key words: Overweight, obesity, weight maintenance, weight regain, and diet therapy. Finally, we assessed 26 articles in the present article. Results: Meal replacement, low carbohydrate-low glycemic index (GI) diet, high protein intake, and moderate fat consumption have shown some positive effects on weight maintenance. However, the results are controversial. A Dietary Approach to Stop Hypertension (DASH)-type diet seems helpful for weight maintenance although the need for more study has remained. Some special behaviors were associated with less weight regain, such as, not being awake late at night, drinking lower amount of sugar-sweetened beverages, and following a healthy pattern. Some special foods have been suggested for weight maintenance. However, the roles of specific foods are not confirmed. Conclusion: Healthy diets recommend low carbohydrate, low GI, and moderate fat foods, but it is not clear whether they are useful in preventing weight gain. It seems that consuming fewer calories helps people to keep weight loss. Further research to find strategies in obesity management focusing on successful maintenance of weight loss is needed. PMID:24949037

Soeliman, Fatemeh Azizi; Azadbakht, Leila

2014-01-01

351

Potassium Balances in Maintenance Hemodialysis  

PubMed Central

Potassium is abundant in the ICF compartment in the body and its excretion primarily depends on renal (about 90%), and to a lesser extent (about 10%) on colonic excretion. Total body potassium approximated to 50mmol/kg body weight and 2% of total body potassium is in the ECF compartment and 98% of it in the intracellular compartment.Dyskalemia is a frequent electrolyte imbalance observed among the maintenance hemodialysis patients. In case of hyperkalemia, it is frequently "a silent and a potential life threatening electrolyte imbalance" among patients with ESRD under maintenance hemodialysis. The prevalence of hyperkalemia in maintenance HD patients was reported to be about 8.7-10%. Mortality related to the hyperkalemia has been shown to be about 3.1/1,000 patient-years and about 24% of patients with HD required emergency hemodialysis due to severe hyperkalemia. In contrast to the hyperkalemia, much less attention has been paid to the hypokalemia in hemodialysis patients because of the low prevalence under maintenance hemodialysis patients. Severe hypokalemia in the hemodialysis patients usually was resulted from low potassium intake (malnutrition), chronic diarrhea, mineralocorticoid use, and imprudent use of K-exchange resins. Recently, the numbers of the new patients with advanced chronic kidney disease undergoing maintenance hemodialysis are tremendously increasing worldwide. However, the life expectancy of these patients is still much lower than that of the general population. The causes of excess mortality in these patients seem to various, but dyskalemia is a common cause among the patients with ESRD undergoing hemodialysis. PMID:23946760

Choi, Hoon Young

2013-01-01

352

Maintenance of defibrillators in a state of readiness.  

PubMed

Since 1984, the US Food and Drug Administration (FDA) has utilized the Medical Device Reporting system as a mechanism for reporting adverse incidents associated with the use of medical devices, including external defibrillators. The frequency and content of these reports prompted an FDA-conducted five-state study of defibrillator-user training and maintenance practices for both devices and batteries. The study also included inspection and testing of defibrillators and batteries to assess their state of maintenance. A detailed review of the reports and of the five-state data confirmed that in the majority of cases, adverse incidents were related to improper defibrillator operation and maintenance, prompting the FDA Center for Devices and Radiological Health to launch an educational effort directed toward those who operate and maintain defibrillators. Proper maintenance of batteries (both nickel-cadmium and sealed lead-acid) was a major component of the educational thrust, because battery failure was identified as a recurrent and preventable problem. In an effort to correct the diverse types of incidents being reported, checklists were developed by the FDA for both manual and automated defibrillators. The checklists are designed to cover the spectrum of reported problems related to both device and user. The advent of more stringent FDA adverse incident-reporting regulations, coupled with increased use of defibrillators in diverse settings with varying usage frequencies, would seem to give a major impetus to the regular use of these checklists wherever defibrillators are employed. PMID:8434829

White, R D

1993-02-01

353

Subpixel resolution from multiple images  

NASA Technical Reports Server (NTRS)

Multiple images taken from similar locations and under similar lighting conditions contain similar, but not identical, information. Slight differences in instrument orientation and position produces mismatches between the projected pixel grids. These mismatches ensure that any point on the ground is sampled differently in each image. If all the images can be registered with respect to each other to a small fraction of a pixel accuracy, then the information from the multiple images can be combined to increase linear resolution by roughly the square root of the number of images. In addition, the gray-scale resolution of the composite image is also improved. We describe methods for multiple image registration and combination, and discuss some of the problems encountered in developing and extending them. We display test results with 8:1 resolution enhancement, and Viking Orbiter imagery with 2:1 and 4:1 enhancements.

Cheeseman, Peter; Kanefsky, Rob; Stutz, John; Kraft, Richard

1994-01-01

354

Improving maintenance operation through transformational outsourcing  

E-print Network

Outsourcing maintenance to third-party contractors has become an increasingly popular option for manufacturers to achieve tactical and/or strategic objectives. Though simple in concept, maintenance outsourcing is difficult ...

Ye, Jacqueline Ming-Shih

2007-01-01

355

Human Reliability in the Performance of Maintenance.  

National Technical Information Service (NTIS)

A method for estimating the reliability of maintenance performance is developed and applied to tasks involved in scheduled maintenance for Titan II engines. The approach involves the combined use of ratings and empirically derived reliability figures. A m...

A. M. Freed, I. A. Irwin, J. J. Levitz

1964-01-01

356

Safe Maintenance Guide for Robotic Workstations.  

National Technical Information Service (NTIS)

A maintenance guide was developed to help protect workers who must labor inside robot work zones. These workers may be programmers, maintenance technicians, or robot system operators. Most injuries have occurred in the past to workers who were carrying ou...

J. R. Etherton

1988-01-01

357

46 CFR 185.702 - Maintenance.  

Code of Federal Regulations, 2011 CFR

...Maintenance. (a) The manufacturer's instructions for onboard maintenance of survival craft, rescue boats, and launching appliances, manufactured on or after March 11, 1996, must be onboard a vessel of more than 19.8 meters (65 feet) in...

2011-10-01

358

46 CFR 122.702 - Maintenance.  

Code of Federal Regulations, 2013 CFR

...Maintenance. (a) The manufacturer's instructions for onboard maintenance of survival craft, rescue boats, and launching appliances, manufactured on or after March 11, 1996, must be onboard a vessel of more than 19.8 meters (65 feet) in...

2013-10-01

359

46 CFR 185.702 - Maintenance.  

Code of Federal Regulations, 2013 CFR

...Maintenance. (a) The manufacturer's instructions for onboard maintenance of survival craft, rescue boats, and launching appliances, manufactured on or after March 11, 1996, must be onboard a vessel of more than 19.8 meters (65 feet) in...

2013-10-01

360

Augmented Reality for Maintenance and Repair (ARMAR).  

National Technical Information Service (NTIS)

The purpose of this research, Augmented Reality for Maintenance and Repair (ARMAR), was to research the design and development of experimental augmented reality systems for maintenance job aiding. The goal was to explore and evaluate the feasibility of de...

S. J. Henderson, S. K. Feiner

2007-01-01

361

46 CFR 122.702 - Maintenance.  

Code of Federal Regulations, 2011 CFR

...VESSELS CARRYING MORE THAN 150 PASSENGERS OR WITH OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS OPERATIONS Operational Readiness, Maintenance, and Inspection of Lifesaving Equipment § 122.702 Maintenance. (a) The...

2011-10-01

362

46 CFR 122.702 - Maintenance.  

Code of Federal Regulations, 2010 CFR

...VESSELS CARRYING MORE THAN 150 PASSENGERS OR WITH OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS OPERATIONS Operational Readiness, Maintenance, and Inspection of Lifesaving Equipment § 122.702 Maintenance. (a) The...

2010-10-01

363

46 CFR 122.702 - Maintenance.  

Code of Federal Regulations, 2012 CFR

...VESSELS CARRYING MORE THAN 150 PASSENGERS OR WITH OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS OPERATIONS Operational Readiness, Maintenance, and Inspection of Lifesaving Equipment § 122.702 Maintenance. (a) The...

2012-10-01

364

14 CFR 91.405 - Maintenance required.  

Code of Federal Regulations, 2010 CFR

...as prescribed in part 43 of this chapter; (b) Shall ensure that maintenance personnel make appropriate entries in the aircraft maintenance records indicating the aircraft has been approved for return to service; (c) Shall have...

2010-01-01

365

14 CFR 91.405 - Maintenance required.  

Code of Federal Regulations, 2012 CFR

...as prescribed in part 43 of this chapter; (b) Shall ensure that maintenance personnel make appropriate entries in the aircraft maintenance records indicating the aircraft has been approved for return to service; (c) Shall have...

2012-01-01

366

14 CFR 91.405 - Maintenance required.  

Code of Federal Regulations, 2013 CFR

...as prescribed in part 43 of this chapter; (b) Shall ensure that maintenance personnel make appropriate entries in the aircraft maintenance records indicating the aircraft has been approved for return to service; (c) Shall have...

2013-01-01

367

14 CFR 91.405 - Maintenance required.  

...as prescribed in part 43 of this chapter; (b) Shall ensure that maintenance personnel make appropriate entries in the aircraft maintenance records indicating the aircraft has been approved for return to service; (c) Shall have...

2014-01-01

368

14 CFR 91.405 - Maintenance required.  

Code of Federal Regulations, 2011 CFR

...as prescribed in part 43 of this chapter; (b) Shall ensure that maintenance personnel make appropriate entries in the aircraft maintenance records indicating the aircraft has been approved for return to service; (c) Shall have...

2011-01-01

369

Rapid Transit Subways-Maintenance Guidelines.  

National Technical Information Service (NTIS)

The maintenance of an underground rapid transit complex requires considerable labor, equipment, and variety of material. This analysis of the maintenance and engineering data of North American and European transit properties identifies the important techn...

J. Birkmyer

1978-01-01

370

Maintenance cost studies of present aircraft subsystems  

E-print Network

This report describes two detailed studies of actual maintenance costs for present transport aircraft. The first part describes maintenance costs for jet transport aircraft broken down into subsystem costs according to an ...

Pearlman, Chaim Herman Shalom

1966-01-01

371

Resolution for Max-SAT  

Microsoft Academic Search

Max-SAT is the problem of finding an assignment minimizing the number of unsatisfied clauses in a CNF formula. We propose a resolution-like calculus for Max-SAT and prove its soundness and completeness. We also prove the completeness of some refinements of this calculus. From the completeness proof we derive an exact algorithm for Max-SAT and a time upper bound. We also

Maria Luisa Bonet; Jordi Levy; Felip Manyà

2007-01-01

372

Mining Surveillance and Maintenance Dollars  

SciTech Connect

Accelerating site cleanup to reduce facility risks to the workers, the public and the environment during a time of declining federal budgets represents a significant technical and economic challenge to U.S. Department of Energy (DOE) Operations Offices and their respective contractors. A significant portion of a facility's recurring annual expenses are associated with routine, long-term surveillance and maintenance (S&M) activities. However, ongoing S&M activities do nothing to reduce risks and basically spend money that could be reallocated towards facility deactivation. This paper discusses the background around DOE efforts to reduce surveillance and maintenance costs, one approach used to perform cost reviews, lessons learned from field implementation and what assistance is available to assist DOE sites in performing these evaluations.

MARTINEZ, R.

2000-02-01

373

Personal Health Maintenance for Children  

PubMed Central

The foundations for lifelong responsibility for personal health maintenance are laid down in childhood. Personal health maintenance for children is important for a healthy childhood, for a healthy adulthood and for the development of positive values about health, personal health responsibility and the use of health services. Present knowledge in this area is weak but growing. Five areas of development are highlighted: (1) the cognitive understanding of health and disease, (2) a psychological sense of control over health, (3) parental and media influences on health behaviors, (4) school health education and (5) training by health professionals about self-management of childhood illness and health services usage patterns. Implications for current practice are developed. PMID:6395496

Richmond, Julius B.; Kotelchuck, Milton

1984-01-01

374

The Evidence Regarding Maintenance Tocolysis  

PubMed Central

Preterm delivery is a public health issue of major proportion. More than 12% of deliveries in the United States that occur at less than 37 weeks gestation preterm labor (PTL) represents the largest single reason for preterm birth (PTB). Attempts to prevent PTB have been unsuccessful. This paper of maintenance tocolytic therapy will examine the efficacy and safety of the drugs, both oral and subcutaneous, which have been utilized for prolongation of pregnancy following successful arrest of a documented episode of acute preterm labor. The evidence for oral tocolytics as maintenance therapy as well as parenteral medications for such patients is offered. Finally, the effects in the United States of the Food and Drug Administration (FDA) action on such medications are reported. PMID:23577034

Elliott, John P.; Morrison, John C.

2013-01-01

375

Technologies for Dependability and Maintenance  

Microsoft Academic Search

Maintenance is the science that studies the compendium of technical and management actions, from the point of view of planning\\u000a as well as management, which enable an organisation to perform economic, safe, efficient and environmentally effective management,\\u000a according to established quality standards, of any type of asset or group of assets (Fedele et al., 2004). Considering the general applicability to

Lorenzo Fedele; Olivier Basile; Pierre Dehombreux; Enrico Filippi; Jacopo Cassina; Marco Taisch; Matteo Zanotto; Marco Gerosa; Daniel Ball; Yan Ruqiang; Robert X. Gao; Abhijit V. Deshmukh; Gerhard Müller; Klaus Richter; Cathrin Plate; Johannes Mandelartz; Vincenzo Gattulli

376

Problem Solving  

NSDL National Science Digital Library

Problem solving is the thought processes involved in solving a problem. It is both a means of developing students' knowledge of mathematics and a critical outcome of a good mathematics education. A mathematical problem, as distinct from an exercise, requires the solver to search for a method for solving the problem rather than following a set procedure. Mathematical problem solving, therefore, requires an understanding of relevant concepts, procedures, and strategies. To become good problem solvers, students need many opportunities to formulate questions, model problem situations in a variety of ways, generalize mathematical relationships, and solve problems in both mathematical and everyday contexts.

K-12 Outreach,

377

Institute for Software Technology Software Maintenance  

E-print Network

1 Institute for Software Technology Software Maintenance VU 3.0 WS 2006 Univ.Prof. Dr. Franz Wotawa Institut für Softwaretechnologie wotawa@ist.tugraz.at VU Software Maintenance 2Institute for Software Technology Wozu Software Maintenance? Meine Software ist immer korrekt! Keine Modifikationen. Nur neue

378

Computerizing Maintenance Management Improves School Processes.  

ERIC Educational Resources Information Center

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)

Conroy, Pat

2002-01-01

379

Maintenance Staffing Guidelines For Educational Facilities.  

ERIC Educational Resources Information Center

The purpose of this publication is to provide a resource or guide for educational facilities in establishing or developing a maintenance trades organization that is sufficient to accomplish basic facilities maintenance functions. The guidelines are intended to suggest staffing levels for those routine facilities maintenance activities that are…

APPA: Association of Higher Education Facilities Officers, Alexandria, VA.

380

49 CFR 37.203 - Lift maintenance.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Lift maintenance. 37.203 Section 37...Over-the-Road Buses (OTRBs) § 37.203 Lift maintenance. (a) The entity shall...regular and frequent maintenance checks of lifts sufficient to determine if they are...

2011-10-01

381

49 CFR 37.203 - Lift maintenance.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 2010-10-01 false Lift maintenance. 37.203 Section 37...Over-the-Road Buses (OTRBs) § 37.203 Lift maintenance. (a) The entity shall...regular and frequent maintenance checks of lifts sufficient to determine if they are...

2010-10-01

382

49 CFR 37.203 - Lift maintenance.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false Lift maintenance. 37.203 Section 37...Over-the-Road Buses (OTRBs) § 37.203 Lift maintenance. (a) The entity shall...regular and frequent maintenance checks of lifts sufficient to determine if they are...

2012-10-01

383

Laboratory services series: a programmed maintenance system  

SciTech Connect

The diverse facilities, operations and equipment at a major national research and development laboratory require a systematic, analytical approach to operating equipment maintenance. A computer-scheduled preventive maintenance program is described including program development, equipment identification, maintenance and inspection instructions, scheduling, personnel, and equipment history.

Tuxbury, D.C.; Srite, B.E.

1980-01-01

384

On-condition maintenance for wind turbines  

Microsoft Academic Search

This work presents a system to manage wind turbines maintenance through a predictive model. The system is based on specific maintenance software and hardware for data acquisition and also on algorithms for prediction based on time series. The maintenance software is called SMIT - (Terology Integrated Modular System). The acquisition system can be interconnected with professional, industrial and low cost

Inácio Fonseca; Torres Farinha; F. Maciel Barbosa

2009-01-01

385

Fault knowledge management in aircraft maintenance  

Microsoft Academic Search

An aircraft is complex system with a great number of electronic products and mechanical equipments, and numerous faults failed to be inspected in aircraft maintenance. In most circumstance, it requires specialists to detect, diagnose and redress faults. The expert knowledge is an important aid in aircraft maintenance. This paper proposes a knowledge management method based on much maintenance experience and

Yang Zhou; Qing Li; Yingping Zuo

2009-01-01

386

Situation awareness in aircraft maintenance teams  

Microsoft Academic Search

Research was conducted at a major airline to investigate factors related to situation awareness in aviation maintenance teams. Situation awareness has been found to be critical to performance and error prevention in many environments. Its role in the maintenance domain for the performance of both individuals and teams is discussed. Situation awareness requirements for aviation maintenance were determined as well

Mica R Endsley; Michelle M. Robertson

2000-01-01

387

49 CFR 238.107 - Inspection, testing, and maintenance plan.  

Code of Federal Regulations, 2010 CFR

... Inspection, testing, and maintenance plan. (a) General. ...inspection, testing, and maintenance plan consistent with the requirements...intervals; (3) Scheduled preventive maintenance intervals; (4)...

2010-10-01

388

14 CFR 121.123 - Servicing maintenance facilities.  

Code of Federal Regulations, 2013 CFR

...Supplemental Operations § 121.123 Servicing maintenance facilities. Each certificate holder...are available for the proper servicing, maintenance, and preventive maintenance of aircraft and auxiliary equipment. [Doc....

2013-01-01

389

14 CFR 121.123 - Servicing maintenance facilities.  

...Supplemental Operations § 121.123 Servicing maintenance facilities. Each certificate holder...are available for the proper servicing, maintenance, and preventive maintenance of aircraft and auxiliary equipment. [Doc....

2014-01-01

390

14 CFR 135.441 - Transfer of maintenance records.  

Code of Federal Regulations, 2013 CFR

...GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and Alterations § 135.441 Transfer of maintenance records. Each certificate...United States registered aircraft shall transfer to...

2013-01-01

391

14 CFR 135.441 - Transfer of maintenance records.  

Code of Federal Regulations, 2011 CFR

...GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and Alterations § 135.441 Transfer of maintenance records. Each certificate...United States registered aircraft shall transfer to...

2011-01-01

392

14 CFR 135.441 - Transfer of maintenance records.  

Code of Federal Regulations, 2012 CFR

...GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and Alterations § 135.441 Transfer of maintenance records. Each certificate...United States registered aircraft shall transfer to...

2012-01-01

393

14 CFR 121.123 - Servicing maintenance facilities.  

Code of Federal Regulations, 2011 CFR

...Supplemental Operations § 121.123 Servicing maintenance facilities. Each certificate holder...are available for the proper servicing, maintenance, and preventive maintenance of aircraft and auxiliary equipment. [Doc....

2011-01-01

394

14 CFR 121.123 - Servicing maintenance facilities.  

Code of Federal Regulations, 2012 CFR

...Supplemental Operations § 121.123 Servicing maintenance facilities. Each certificate holder...are available for the proper servicing, maintenance, and preventive maintenance of aircraft and auxiliary equipment. [Doc....

2012-01-01

395

14 CFR 121.123 - Servicing maintenance facilities.  

Code of Federal Regulations, 2010 CFR

...Supplemental Operations § 121.123 Servicing maintenance facilities. Each certificate holder...are available for the proper servicing, maintenance, and preventive maintenance of aircraft and auxiliary equipment. [Doc....

2010-01-01

396

14 CFR 135.441 - Transfer of maintenance records.  

...GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance, Preventive Maintenance, and Alterations § 135.441 Transfer of maintenance records. Each certificate...United States registered aircraft shall transfer to...

2014-01-01

397

7 CFR 654.41 - Performance of operation and maintenance.  

Code of Federal Regulations, 2010 CFR

... Performance of operation and maintenance. 654.41 Section 654...SUPPORT ACTIVITIES OPERATION AND MAINTENANCE Emergency Watershed Protection... Performance of operation and maintenance. (a) Arrangement....

2010-01-01

398

Effectiveness of weight loss and maintenance interventions in women  

Microsoft Academic Search

Overweight and obesity in women contribute to increased risk of many health problems, including type 2 diabetes. A systematic\\u000a review of the weight loss literature found 17 articles in which women were the sole subjects and studies were a minimum of\\u000a 1 year or longer in duration. Data were pooled and average weight loss and maintenance for women at 6

Marion J. Franz

2004-01-01

399

Methodical design and maintenance of well structured rule base  

Microsoft Academic Search

This paper discusses existing problems of the most widely used knowledge representation (i.e., rules) in expert systems and proposes a methodical design and maintenance of well-structured rules (WSR). Rule’s simple syntax, coupled with recent advancement of user friendly expert system shells, has encouraged inexperienced knowledge engineers and end-users to create nontrivial rule-based knowledge bases. It also is believed that well-structured

Kunihiko Higa

1990-01-01

400

Optimal Selective Maintenance Strategy for MultiState Systems Under Imperfect Maintenance  

Microsoft Academic Search

Many systems are required to perform a series of missions with finite breaks between any two consecutive missions. In such a case, one of the most widely used maintenance policies is a selective maintenance in which a subset of feasible maintenance actions is chosen to be performed with the aim at achieving the subsequent mission success under limited maintenance resources.

Yu Liu; Hong-Zhong Huang

2010-01-01

401

Themes from a Camp Maintenance Network: Camp Maintenance and Property Personnel Share Their Insights and Challenges.  

ERIC Educational Resources Information Center

A camp maintenance survey was completed by maintenance personnel from 99 camps. Results highlighted several important considerations: ensuring sufficient maintenance funds for aging infrastructure, including camp/property personnel in decision making, publicizing completed maintenance projects, examining long-term needs of the land, and adopting…

Whyman, Wynne

2003-01-01

402

14 CFR 43.5 - Approval for return to service after maintenance, preventive maintenance, rebuilding, or alteration.  

Code of Federal Regulations, 2011 CFR

...DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE...for return to service any aircraft, airframe, aircraft engine, propeller, or appliance, that has undergone maintenance, preventive...

2011-01-01

403

14 CFR 43.5 - Approval for return to service after maintenance, preventive maintenance, rebuilding, or alteration.  

...DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE...for return to service any aircraft, airframe, aircraft engine, propeller, or appliance, that has undergone maintenance, preventive...

2014-01-01

404

14 CFR 43.5 - Approval for return to service after maintenance, preventive maintenance, rebuilding, or alteration.  

Code of Federal Regulations, 2013 CFR

...DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE...for return to service any aircraft, airframe, aircraft engine, propeller, or appliance, that has undergone maintenance, preventive...

2013-01-01

405

14 CFR 43.5 - Approval for return to service after maintenance, preventive maintenance, rebuilding, or alteration.  

Code of Federal Regulations, 2012 CFR

...DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE...for return to service any aircraft, airframe, aircraft engine, propeller, or appliance, that has undergone maintenance, preventive...

2012-01-01

406

Computerized maintenance boosts reliability, trims costs  

SciTech Connect

A natural gas-fired combined-cycle power plant has operated successfully for the past three years at the 3800-acre Pitchess Honor Rancho jail complex in Saugus, Calif. One of the reasons for the plant's success has been its computerized maintenance system. This paper reports that utilization of the computerized plant maintenance system program, in conjunction with several data base programs, has increased the plant's reliability and trimmed costs. As we learned at Pitchess, a computerized maintenance program provides two key advantages over the traditional breakdown maintenance approach: minimal equipment breakdown, and a reduction in operations and maintenance man-hours.

Hammer, K. (County of Los Angeles, CA (US)); Egleston, P.C.; Steinert, M.P.; Goldstein, M. (Charles T. Main Inc. (US))

1992-01-01

407

Automated Conflict Resolution for Air Traffic Management Using  

E-print Network

Automated Conflict Resolution for Air Traffic Management Using Cooperative Multi-agent Negotiation@aero.tamu.edu, ioerger@cs.tamu.edu Automated Conflict Resolution for Air Traffic Management Using Cooperative Multi domain problems. Automated Conflict Resolution for Air Traffic Management Using Cooperative Multi

Valasek, John

408

Conflict Resolution Communications.  

ERIC Educational Resources Information Center

Suggests that, due to escalating violence in contemporary society, community colleges should offer certificate or degree programs in conflict resolution. Describes a conflict resolution communication program, which teaches communication skills, mediation processes, and coping strategies to prospective mediators. (NB)

Lincoln, Melinda G.

2002-01-01

409

14 CFR 91.421 - Rebuilt engine maintenance records.  

Code of Federal Regulations, 2011 CFR

...Maintenance, Preventive Maintenance, and Alterations § 91.421 Rebuilt engine maintenance records. (a) The...operator may use a new maintenance record, without previous...operating history, for an aircraft engine rebuilt by...

2011-01-01

410

14 CFR 91.421 - Rebuilt engine maintenance records.  

Code of Federal Regulations, 2013 CFR

...Maintenance, Preventive Maintenance, and Alterations § 91.421 Rebuilt engine maintenance records. (a) The...operator may use a new maintenance record, without previous...operating history, for an aircraft engine rebuilt by...

2013-01-01

411

14 CFR 91.421 - Rebuilt engine maintenance records.  

Code of Federal Regulations, 2012 CFR

...Maintenance, Preventive Maintenance, and Alterations § 91.421 Rebuilt engine maintenance records. (a) The...operator may use a new maintenance record, without previous...operating history, for an aircraft engine rebuilt by...

2012-01-01

412

30 CFR 57.14105 - Procedures during repairs or maintenance.  

Code of Federal Regulations, 2010 CFR

...false Procedures during repairs or maintenance. 57.14105 Section 57.14105...and Equipment Safety Devices and Maintenance Requirements § 57.14105 Procedures during repairs or maintenance. Repairs or maintenance on...

2010-07-01

413

Scheduling jobs and a variable maintenance on a single machine with common due-date assignment.  

PubMed

We investigate a common due-date assignment scheduling problem with a variable maintenance on a single machine. The goal is to minimize the total earliness, tardiness, and due-date cost. We derive some properties on an optimal solution for our problem. For a special case with identical jobs we propose an optimal polynomial time algorithm followed by a numerical example. PMID:25147861

Wan, Long

2014-01-01

414

A dynamic approach for aircraft assignment and maintenance scheduling by airlines  

Microsoft Academic Search

The problems of assigning planes to flights and of fleet maintenance operations scheduling are considered in this paper. While recent approaches make use of artificial intelligence techniques running on main frame computers to solve combinatorial optimization problems for nominal operations, a dynamic approach is proposed here to face on-line operation conditions. The proposed solution mixes a Dynamic Programming approach (to

Walid El Moudani; Félix Mora-Camino

2000-01-01

415

Problem drinkers and their problems  

PubMed Central

From general practice records of 9,763 patients, 106 problem drinkers were compared with a control group. The drinkers had a substantially higher number of problems and they consulted their doctor and attended casualty departments frequently. Social and marital problems were especially prevalent in the families of problem drinkers. PMID:7277292

Buchan, I. C.; Buckley, E. G.; Deacon, G. L. S.; Irvine, R.; Ryan, M. P.

1981-01-01

416

Methodology for minimizing maintenance costs  

SciTech Connect

Research conducted in the case study of a large applications system shows that the two primary causes of high maintenance costs are: the frequency of user-requested changes to software; and the psychological complexity of the software. A tool kit is suggested which, when applied to the design of new systems or rewrites, will produce systems which users are less likely to need changed, and will contribute to the reduction of psychological complexity of code, making it easier to change when necessary. The tool kit is easy to use, can be applied to large or small systems in any language on any equipment, and requires no purchase of hardware or software.

Brice, L.; Connell, J.

1983-01-01

417

Engineering Technology: Electronic Maintenance Engineer  

NSDL National Science Digital Library

In this video adapted from Pathways to Technology, youâÂÂll learn about the role of an electronic maintenance technician, and see how this important position keeps the machines in a factory moving. Community college graduate Brad Richardson always liked taking things apart to see how they work, and his job at Tupperware gives him that satisfaction. Brad describes what brought him to study engineering, and what he does in his career. The video runs 3:03 and is accompanied by a background essay, standards alignment, and discussion questions. Users who sign up for a free account can save the resource and download the video as well.

2012-05-24

418

Index : A Rule Based Expert System For Computer Network Maintenance  

NASA Astrophysics Data System (ADS)

Communications is an expert intensive discipline. The application of expert systems for maintenance of large and complex networks, mainly as an aid in trouble shooting, can simplify the task of network management. The important steps involved in troubleshooting are fault detection, fault reporting, fault interpretation and fault isolation. At present, Network Maintenance Facilities are capable of detecting and reporting the faults to network personnel. Fault interpretation refers to the next step in the process, which involves coming up with reasons for the failure. Fault interpretation can be characterized in two ways. First, it involves such a diversity of facts that it is difficult to predict. Secondly, it embodies a wealth of knowledge in the form of network management personnel. The application of expert systems in these interpretive tasks is an important step towards automation of network maintenance. In this paper, INDEX (Intelligent Network Diagnosis Expediter), a rule based production system for computer network alarm interpretation is described. It acts as an intelligent filter for people analyzing network alarms. INDEX analyzes the alarms in the network and identifies proper maintenance action to be taken.The important feature of this production system is that it is data driven. Working memory is the principal data repository of production systems and its contents represent the current state of the problem. Control is based upon which productions match the constantly changing working memory elements. Implementation of the prototype is in OPS83. Major issues in rule based system development such as rule base organization, implementation and efficiency are discussed.

Chaganty, Srinivas; Pitchai, Anandhi; Morgan, Thomas W.

1988-03-01

419

14 CFR 43.17 - Maintenance, preventive maintenance, and alterations performed on U.S. aeronautical products by...  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 2010-01-01 false Maintenance, preventive maintenance, and alterations performed on U.S. aeronautical...DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE, REBUILDING,...

2010-01-01

420

A Minimum Delta V Orbit Maintenance Strategy for Low-Altitude Missions Using Burn Parameter Optimization  

NASA Technical Reports Server (NTRS)

Orbit maintenance is the series of burns performed during a mission to ensure the orbit satisfies mission constraints. Low-altitude missions often require non-trivial orbit maintenance Delta V due to sizable orbital perturbations and minimum altitude thresholds. A strategy is presented for minimizing this Delta V using impulsive burn parameter optimization. An initial estimate for the burn parameters is generated by considering a feasible solution to the orbit maintenance problem. An low-lunar orbit example demonstrates the Delta V savings from the feasible solution to the optimal solution. The strategy s extensibility to more complex missions is discussed, as well as the limitations of its use.

Brown, Aaron J.

2011-01-01

421

Reduced Energy and Maintenance Costs Using Polyurethane as a Replacement Roof System  

E-print Network

Reduced Energy and Maintenance Costs Using Polyurethane as a Replacement Roof System Gerald D. Scott, P.E. Manager of Engineering, Retired Physical Plant, Texas A&M University College Station, Texas ABSTRACT PROBLEM Reduction... in maintenance and allied costs was the number one priority when Texas A&M University first considered polyurethane foam as a replacement roof for existing buildings. An investigation revealed that when properly applied, this system would solve most...

Scott, G. D.

422

Initial flight qualification and operational maintenance of X-29A flight software  

NASA Technical Reports Server (NTRS)

A discussion is presented of some significant aspects of the initial flight qualification and operational maintenance of the flight control system softward for the X-29A technology demonstrator. Flight qualification and maintenance of complex, embedded flight control system software poses unique problems. The X-29A technology demonstrator aircraft has a digital flight control system which incorporates functions generally considered too complex for analog systems. Organizational responsibilities, software assurance issues, tools, and facilities are discussed.

Earls, Michael R.; Sitz, Joel R.

1989-01-01

423

No maintenance -- no energy efficiency  

SciTech Connect

Field investigations illustrate that it is not realistic to expect new high-tech equipment to function for a full life expectancy at high efficiency without significant operations and maintenance (O&M). A simple walk through inspection of most buildings reveals extensive equipment that is being operated on manual override, is incorrectly adjusted and operating inefficiently, or is simply inoperative. This point is illustrated with two examples at Robins Air Force Base, Georgia. The first describes development of a comprehensive, base-wide, steam trap maintenance program. The second describes a measured evaluation from a typical office building. The objective of both examples was to assess the importance of proper O&M. The proposed ``O&M First`` philosophy will result in more efficient building HVAC operation, provide improved services to the building occupants, and reduce energy consumption and unscheduled equipment repair/replacement. Implementation of a comprehensive O&M program will result in a 15--25% energy savings. The O&M foundation that is established will allow other energy conservation activities such is demand side management or energy management and control systems, to achieve and maintain their expected energy savings.

Szydlowski, R.F.; Schliesing, J.S.; Winiarski, D.W.

1994-12-01

424

Classic Problems  

NSDL National Science Digital Library

Classic problems from the Ask Dr. Math FAQ (Frequently Asked Questions) files, including: age word problems, birthday probability, boy or girl?, camel and bananas, coin problems, doubling pennies, grazing animals, liars and truthtellers, the missing dollar, Monty Hall (three doors), three houses three utilities, the Tower of Hanoi, two trains, two trains and a fly, and working together.

Forum, Math; Math Forum; Ask Dr. Math FAQ

2002-01-01

425

Second Line of Defense: Electronic Maintenance Reports, Local Maintenance Provider User Guide, Rev. 3  

SciTech Connect

The Electronic Maintenance Report forms allow Local Maintenance Providers (LMP) and other program staff to enter maintenance information into a simple and secure system. This document describes the features and information required to complete the Maintenance Report forms. It is expected that all Corrective Maintenance Reports from LMPs will be submitted electronically into the SLD Portal. As an exception (e.g., when access to the SLD Portal is unavailable), Maintenance Reports can be submitted via a secure Adobe PDF form available through the Sustainability Manager assigned to each country.

Leigh, Richard J.

2012-09-01

426

A Comparison of Two Instructional Approaches on Mathematical Word Problem Solving by Students with Learning Problems.  

ERIC Educational Resources Information Center

This study examined the differential effects of two instructional strategies on the acquisition, maintenance, and generalization of mathematical word problem solving by students with learning disabilities: an explicit schema-based problem solving strategy (SBI) and a traditional general heuristic instructional strategy (TI). Twenty-two middle…

Xin, Yan Ping; Jitendra, Asha; Deatline-Buchman, Andria; Hickman, Wesley; Bertram, Dean

427

Longview District Operations and Maintenance Headquarters : Environmental Assessment.  

SciTech Connect

Bonneville Power Administration (BPA) operations and maintenance staff are presently based at a headquarters next to the Longview Substation. These headquarters buildings, however, were built in 1941 and have deteriorated to the point of needing extensive repair. They also lack sufficient inside storage space. New buildings cannot be constructed on the site because of surrounding development. In addition, the site is within an area exposed to industrial fallout (coal tar pitch and metallic particles) that may be damaging buildings, equipment, and vehicles. BPA is concerned about the potential health risk to headquarters staff from the fallout. In light of these problems, BPA proposes to construct a new operations and maintenance headquarters at a different location, and to demolish the existing headquarters. This paper discusses the environmental impacts of the proposed action and alternatives.

United States. Bonneville Power Administration.

1992-03-01

428

Longview District Operations and Maintenance Headquarters: Environmental assessment  

SciTech Connect

Bonneville Power Administration (BPA) operations and maintenance staff are presently based at a headquarters next to the Longview Substation. These headquarters buildings, however, were built in 1941 and have deteriorated to the point of needing extensive repair. They also lack sufficient inside storage space. New buildings cannot be constructed on the site because of surrounding development. In addition, the site is within an area exposed to industrial fallout (coal tar pitch and metallic particles) that may be damaging buildings, equipment, and vehicles. BPA is concerned about the potential health risk to headquarters staff from the fallout. In light of these problems, BPA proposes to construct a new operations and maintenance headquarters at a different location, and to demolish the existing headquarters. This paper discusses the environmental impacts of the proposed action and alternatives.

Not Available

1992-03-01

429

Steam Trap Maintenance as a Profit Center  

E-print Network

with the challenge of upgrading their trap maintenance program: ? "Our maintenance people just fix the traps as they go bad. You can't get any better than this." ? "Operating this plant at a profit is job one. Steam trap maintenance is pretty far down... management directive to the right person with the words, "Do it." JUMP START Steam traps are always going bad and are always being repaired or replaced. This is a fact of life. The key is to keep the time lag between failure and corrective maintenance...

Bouchillon, J. L.

430

40 CFR 610.52 - Maintenance.  

Code of Federal Regulations, 2010 CFR

...alignment. (x) Steering. (xi) Wheel bearings. (xii) Non-engine electrical system. (xiii) Drivetrain components (U-joints, axles, transmission adjustments, etc.) (2) Other unscheduled maintenance of the...

2010-07-01

431

Need telomere maintenance? Call 911  

PubMed Central

"Natura non facit saltum" (nature makes no leap) the Latins used to say, meaning that nature does not like discontinuities. Cells make no exception and indeed any discontinuity in the DNA double helix is promptly detected, triggering an alteration of cell proliferation and an attempt to repair. Yet, linear chromosomes bear DNA ends that are compatible with normal cell proliferation and they escape, under normal conditions, any repair. How telomeres, the chromosomes tips, achieve that is not fully understood. We recently observed that the Rad9/Hus1/Rad1 (911) complex, previously known for its functions in DNA metabolism and DNA damage responses, is constitutively associated with telomeres and plays an important role in their maintenance. Here, we summarize the available data and discuss the potential mechanisms of 911 action at telomeres. PMID:17229321

Francia, Sofia; Weiss, Robert S; d'Adda di Fagagna, Fabrizio

2007-01-01

432

Need telomere maintenance? Call 911.  

PubMed

"Natura non facit saltum" (nature makes no leap) the Latins used to say, meaning that nature does not like discontinuities. Cells make no exception and indeed any discontinuity in the DNA double helix is promptly detected, triggering an alteration of cell proliferation and an attempt to repair. Yet, linear chromosomes bear DNA ends that are compatible with normal cell proliferation and they escape, under normal conditions, any repair. How telomeres, the chromosomes tips, achieve that is not fully understood. We recently observed that the Rad9/Hus1/Rad1 (911) complex, previously known for its functions in DNA metabolism and DNA damage responses, is constitutively associated with telomeres and plays an important role in their maintenance. Here, we summarize the available data and discuss the potential mechanisms of 911 action at telomeres. PMID:17229321

Francia, Sofia; Weiss, Robert S; d'Adda di Fagagna, Fabrizio

2007-01-01

433

Simulated maintenance a virtual reality  

SciTech Connect

The article describes potential applications of personal computer-based virtual reality software. The applications are being investigated by Atomic Energy of Canada Limited`s (AECL) Chalk River Laboratories for the Canadian deuterium-uranium (Candu) reactor. Objectives include: (1) reduction of outage duration and improved safety, (2) cost-effective and safe maintenance of equipment, (3) reduction of exposure times and identification of overexposure situations, (4) cost-effective training in a virtual control room simulator, (5) human factors evaluation of design interface, and (6) visualization of conceptual and detailed designs of critical nuclear field environments. A demonstration model of a typical reactor control room, the use of virtual reality in outage planning, and safety issues are outlined.

Lirvall, P. [Atomic Energy of Canada Limited`s Chalk River Lab., Ontario (Canada)

1995-10-01

434

Autonomous spacecraft maintenance study group  

NASA Technical Reports Server (NTRS)

A plan to incorporate autonomous spacecraft maintenance (ASM) capabilities into Air Force spacecraft by 1989 is outlined. It includes the successful operation of the spacecraft without ground operator intervention for extended periods of time. Mechanisms, along with a fault tolerant data processing system (including a nonvolatile backup memory) and an autonomous navigation capability, are needed to replace the routine servicing that is presently performed by the ground system. The state of the art fault handling capabilities of various spacecraft and computers are described, and a set conceptual design requirements needed to achieve ASM is established. Implementations for near term technology development needed for an ASM proof of concept demonstration by 1985, and a research agenda addressing long range academic research for an advanced ASM system for 1990s are established.

Marshall, M. H.; Low, G. D.

1981-01-01

435

Technology and the future of medical equipment maintenance.  

PubMed

Maintenance of medical equipment has been changing rapidly in the past few years. It is changing more rapidly in developed countries, but changes are also occurring in developing countries. Some of the changes may permit improved maintenance on the higher technology equipment in developing countries, since they do not require onsite expertise. Technology has had an increasing impact on the development of medical equipment with the increased use of microprocessors and computers. With miniaturization from space technology and electronic chip design, powerful microprocessors and computers have been built into medical equipment. The improvement in manufacturing technology has increased the quality of parts and therefore the medical equipment. This has resulted in increased mean time between failures and reduced maintenance needs. This has made equipment more reliable in remote areas and developing countries. The built-in computers and advances in software design have brought about self-diagnostics in medical equipment. The technicians now have a strong tool to be used in maintenance. One problem in this area is getting access to the self-diagnostics. Some manufacturers will not readily provide this access to the owner of the equipment. Advances in telecommunications in conjunction with self-diagnostics make available remote diagnosis and repair. Since components can no longer be repaired, a remote repair technician can instruct an operator or an on-site repairman on board replacement. In case of software problems, the remote repair technician may perform the repairs over the telephone. It is possible for the equipment to be monitored remotely by modern without interfering with the operation of the equipment. These changes in technology require the training of biomedical engineering technicians (BMETs) to change. They must have training in computers and telecommunications. Some of this training can be done with telecommunications and computers. PMID:10537671

Wear, J O

1999-05-01

436

Risk Based Maintenance Optimization using Probabilistic Maintenance Quantification Models of Circuit Breaker  

E-print Network

New maintenance techniques for circuit breakers are studied in this dissertation by proposing a probabilistic maintenance model and a new methodology to assess circuit breaker condition utilizing its control circuit data. A risk-based decision...

Natti, Satish

2010-01-14

437

14 CFR 121.377 - Maintenance and preventive maintenance personnel duty time limitations.  

Code of Federal Regulations, 2010 CFR

14 Aeronautics and Space 3 2010-01-01 2010-01-01...preventive maintenance personnel duty time limitations. 121.377 Section 121.377 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION...preventive maintenance personnel duty time limitations. Within...

2010-01-01

438

14 CFR 121.377 - Maintenance and preventive maintenance personnel duty time limitations.  

Code of Federal Regulations, 2013 CFR

14 Aeronautics and Space 3 2013-01-01 2013-01-01...preventive maintenance personnel duty time limitations. 121.377 Section 121.377 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION...preventive maintenance personnel duty time limitations. Within...

2013-01-01

439

14 CFR 121.377 - Maintenance and preventive maintenance personnel duty time limitations.  

14 Aeronautics and Space 3 2014-01-01 2014-01-01...preventive maintenance personnel duty time limitations. 121.377 Section 121.377 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION...preventive maintenance personnel duty time limitations. Within...

2014-01-01

440

14 CFR 121.377 - Maintenance and preventive maintenance personnel duty time limitations.  

Code of Federal Regulations, 2011 CFR

14 Aeronautics and Space 3 2011-01-01 2011-01-01...preventive maintenance personnel duty time limitations. 121.377 Section 121.377 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION...preventive maintenance personnel duty time limitations. Within...

2011-01-01

441

14 CFR 121.377 - Maintenance and preventive maintenance personnel duty time limitations.  

Code of Federal Regulations, 2012 CFR

14 Aeronautics and Space 3 2012-01-01 2012-01-01...preventive maintenance personnel duty time limitations. 121.377 Section 121.377 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION...preventive maintenance personnel duty time limitations. Within...

2012-01-01

442

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

ERIC Educational Resources Information Center

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…

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

443

Some optimization problems in power system reliability analysis  

E-print Network

This dissertation aims to address two optimization problems involving power system reliabilty analysis, namely multi-area power system adequacy planning and transformer maintenance optimization. A new simulation method for power system reliability...

Jirutitijaroen, Panida

2009-05-15

444

USGS aerial resolution targets.  

USGS Publications Warehouse

It is necessary to measure the achievable resolution of any airborne sensor that is to be used for metric purposes. Laboratory calibration facilities may be inadequate or inappropriate for determining the resolution of non-photographic sensors such as optical-mechanical scanners, television imaging tubes, and linear arrays. However, large target arrays imaged in the field can be used in testing such systems. The USGS has constructed an array of resolution targets in order to permit field testing of a variety of airborne sensing systems. The target array permits any interested organization with an airborne sensing system to accurately determine the operational resolution of its system. -from Author

Salamonowicz, P. H.

1982-01-01

445

Weekly Problems  

NSDL National Science Digital Library

This is an archive of previous problems from "Math by the Month", a regular department of Teaching Children Mathematics Journal from NCTM for K-5 teachers that features activities organized by grades K-2 and grades 3-5 and usually based on a theme associated with the particular month. Activities and problems posed are classroom-tested with an inquiry or problem-solving orientation.

2011-01-01

446

Relationship Maintenance on Facebook: Development of a Measure, Relationship to General Maintenance, and Relationship Satisfaction  

ERIC Educational Resources Information Center

Previous research indicates that the primary reason college students use Facebook is for relationship maintenance. The present study sought to determine the relationship between Facebook maintenance and general maintenance efforts in college student romantic relationships, as well as the impacts of such behaviors on the relationship. Survey data…

Dainton, Marianne

2013-01-01

447

Airline Fleet Maintenance: Trade-off Analysis of Alternate Aircraft Maintenance Approaches  

E-print Network

Airline Fleet Maintenance: Trade-off Analysis of Alternate Aircraft Maintenance Approaches Mike; for airlines to be profitable, companies must maximize passenger and cargo traffic flow, minimize expenses the profitability of airlines, including direct and indirect maintenance costs, increasing complexity of aircraft

448

Managing Highway Maintenance: Instructor's Guide: For Training in Managing Highway Maintenance.  

ERIC Educational Resources Information Center

The guide, intended for use by training officers and field instructors in highway maintenance management, contains five courses with a combined total of 17 units of instruction for maintenance engineers and supervisors. The curriculum incorporates management concepts and practices of State, county, and city maintenance agencies which have…

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

449

Integration of RCM (Reliability Centered Maintenance) into the S-3A Maintenance Program.  

National Technical Information Service (NTIS)

In recent years, it has been discovered that it may not be wish to do extensive preventive maintenance on a system. The system may actually tend to fail more often than if such maintenance was eliminated. The (Reliability Centered Maintenance) (RCM) progr...

K. D. Harris

1986-01-01

450

The Role of Automatic Negative Reinforcement in Clinical Problems  

ERIC Educational Resources Information Center

This paper discusses the role of automatic negative reinforcement in the maintenance of clinical problems. Following a brief introduction to the functional conceptualization of clinical problems and discussion of four classes of reinforcement maintaining clinical problems, the paper suggests that automatic negative reinforcement is an understudied…

Miltenberger, Raymond G.

2005-01-01

451

Results of Highway Maintenance Survey Prepared for  

E-print Network

Results of Highway Maintenance Survey Prepared for The SC Department of Transportation Prepared of Transportation In Cooperation with the United States Department of Transportation Federal Highway Administration #12;Results of Highway Maintenance Survey Executive Summary The use of surveys to elicit public

Almor, Amit

452

The Cognitive Behavioral Approach to Weight Maintenance.  

ERIC Educational Resources Information Center

The cognitive behavioral approach to weight maintenance assumes that obese people should be concerned with weight control rather than weight loss, and it embraces both the behavioral approach and a maintenance program which examines risks, value priorities, and the basic principles of weight loss/weight gain. The University of Maryland offers a…

Girdano, Dorothy Dusek

453

Maintenance implementation plan for solid waste management  

SciTech Connect

This Maintenance Implementation Plan (MIP)was developed for implementation of the U.S. Department of Energy (DOE) Order 4330.4A, A Maintenance Implementation Program (DOE 1990) which has been replaced by 4330.4B (DOE 1994) at the Hanford Site SWM complex. It addresses maintenance functions associated with SWM, which includes the field operational group and the facilities operational group. An assessment of the existing maintenance programs for SWM was performed, and the results of this assessment were evaluated to determine corrective actions required to bring Solid Waste Maintenance into compliance with the order. The objective of this MIP is to provide baseline information for the control and execution of SWM Maintenance activities relative to the requirements of Order 4330.4B, Chapter II. (Nuclear Facilities) It also describes actions that are planned to achieve compliance. Section 2.0 of this MIP summarizes the mission, history, and future plans of SWM. Section 3.0 describes maintenance scope and requirements, and outlines the overall strategy (both near- term and long-term) for implementing improvements to the maintenance program. Specific elements of DOE Order 4330.4B are addressed in Section 4.0, including objectives of each element, a discussion of how SWM addresses these objectives, proposed improvements, and references to Westinghouse Hanford Company (Westinghouse Hanford) policies and procedures. Section 5.0 addresses deviations from policy requirements, and Section 6.0 presents the implementation schedule for planned improvements.

Reddinger, R.W., Westinghouse Hanford

1996-06-27

454

Asbestos Exposure of Building Maintenance Personnel  

Microsoft Academic Search

The exposures of building maintenance personnel and occupants to airborne asbestos fibers, and the effects of operations and maintenance programs on those exposures, continue to be an important public health issue. The subject of this investigation was a large metropolitan county with numerous public buildings which routinely conducted air sampling for asbestos. A total of 302 personal air samples in

Steven Mlynarek; Morton Corn; Charles Blake

1996-01-01

455

CLOTHING MAINTENANCE SPECIALIST, A SUGGESTED TRAINING PROGRAM.  

ERIC Educational Resources Information Center

ALTHOUGH THIS GUIDE PROVIDES RESOURCE MATERIALS FOR DEVELOPMENT OF A PROGRAM FOR THE TRAINING OF CLOTHING MAINTENANCE SPECIALISTS, THE TEACHER WILL NEED TO ADAPT IT TO THE NEEDS AND EXPERIENCES OF HER TRAINEES AND TO THE LOCAL COMMUNITY. UNDER THE EMPLOYER'S SUPERVISION, THE CLOTHING MAINTENANCE SPECIALIST ALTERS, CLEANS, PRESSES, REPAIRS, AND…

Office of Education (DHEW), Washington, DC.

456

Chart String Maintenance Project Caf Training  

E-print Network

Chart String Maintenance Project Café Training NUPlans Course FMS705 April 12, 2012 #12;Budget Analyze with Summaries and Reports Submit and Review Review Chart Strings and Add Accounts #12;2 Agenda · Introduce NUPlans Web · Walk through Chart String Maintenance Add Grant Proposal Add Account to Chart

Shull, Kenneth R.

457

Effects of dairy intake on weight maintenance  

E-print Network

, randomized trial. Weight loss was baseline to 3 months, weight maintenance was 4 to 9 months. Participants were maintained randomly assigned to low dairy (dairy serving/d) or recommended dairy (> 3 servings/d) diets for the maintenance phase. Three...

Zemel, Michael B.; Donnelly, Joseph E.; Smith, Bryan K.; Sullivan, Debra K.; Richards, Joanna; Morgan-Hanusa, Danielle; Mayo, Matthew S.; Sun, Xiaocun; Cook-Wiens, Galen; Bailey, Bruce W.; Van Walleghen, Emily L.; Washburn, Richard A.

2008-10-24

458

Test, Control and Monitor System maintenance plan  

NASA Technical Reports Server (NTRS)

The maintenance requirements for Test, Control, and Monitor System (TCMS) and the method for satisfying these requirements prior to First Need Date (FND) of the last TCMS set are described. The method for satisfying maintenance requirements following FND of the last TCMS set will be addressed by a revision to this plan. This maintenance plan serves as the basic planning document for maintenance of this equipment by the NASA Payloads Directorate (CM) and the Payload Ground Operations Contractor (PGOC) at KSC. The terms TCMS Operations and Maintenance (O&M), Payloads Logistics, TCMS Sustaining Engineering, Payload Communications, and Integrated Network Services refer to the appropriate NASA and PGOC organization. For the duration of their contract, the Core Electronic Contractor (CEC) will provide a Set Support Team (SST). One of the primary purposes of this team is to help NASA and PGOC operate and maintain TCMS. It is assumed that SST is an integral part of TCMS O&M. The purpose of this plan is to describe the maintenance concept for TCMS hardware and system software in order to facilitate activation, transition planning, and continuing operation. When software maintenance is mentioned in this plan, it refers to maintenance of TCMS system software.

Buehler, David P.; Lougheed, M. J.

1993-01-01

459

A strategic standpoint on maintenance taxonomy  

Microsoft Academic Search

Purpose – Maintenance, an essential element of facilities management and a fundamental requisite for increasing availability and sustaining stable processes, has been the focus of technical research for decades. However, there has not been a concrete and well-structured classification of different maintenance types that is accepted globally. The need for such a widely acceptable classification is the main incentive to

Khashayar Khazraei; Jochen Deuse

2011-01-01

460

Maintenance Personnel Performance Simulation (MAPPS) model  

SciTech Connect

A stochastic computer model for simulating the actions and behavior of nuclear power plant maintenance personnel is described. The model considers personnel, environmental, and motivational variables to yield predictions of maintenance performance quality and time to perform. The mode has been fully developed and sensitivity tested. Additional evaluation of the model is now taking place.

Siegel, A.I.; Bartter, W.D.; Wolf, J.J.; Knee, H.E.; Haas, P.M.

1984-01-01

461

Collaboration technology impaction on flightline maintenance  

Microsoft Academic Search

In flightline maintenance, collaboration is an important factor in the maintainerpsilas quest to complete a difficult or unusual repair. When the aircraft maintenance intuitive troubleshooting (AMIT) research project design team was evaluating collaboration technologies to incorporate within the AMIT job performance aid (JPA), three questions kept coming to mind. First, what is truly needed? Second, what will improve performance? Thirdly,

Christopher Burneka; Vaughan Whited; Christopher Curtis; Derrick Barthol

2007-01-01

462

Minor Maintenance. A Resource Manual for Custodians.  

ERIC Educational Resources Information Center

Areas of minor maintenance covered by this manual are--(1) electrical, (2) carpentry, (3) plumbing, (4) painting, and (5) masonry. Each area is defined, tools and equipment for maintenance are listed, and the job procedure is given. The description of electrical work also covers sources of electricity and power transmission. The description of…

Florida State Dept. of Education, Tallahassee.

463

US Nuclear Regulatory Commission Maintenance Improvement Program  

Microsoft Academic Search

The author provides an overview on the background and the activities which the Nuclear Regulatory Commission has initiated to improve the maintenance of nuclear power plants. The Commission's Final Policy Statement on Maintenance of Nuclear Power Plants', dated March 17, 1988 is summarized

John P. Jankovich

1988-01-01

464

Preventive Maintenance Guidelines for School Facilities.  

ERIC Educational Resources Information Center

This five-part manual, intended to increase the integrity and support the longevity of school facilities, provides easy-to-use preventive maintenance (PM) system guidelines. Part 1 outlines the special considerations of school maintenance as compared to other facilities. Part 2 establishes the basic components of a PM program and provides Work…

Maciha, John C.

465

The Benefits of Preventive Roof Maintenance.  

ERIC Educational Resources Information Center

Explains how to convince school administration of the importance of roof-maintenance programs as a way of extending roof life and saving money, even in the presence of roof warranties. Discusses techniques for evaluating the cost benefits of roof maintenance and the importance of creating a roof historical file. (GR)

Kalinger, Peter

1998-01-01

466

Setting Up a Preventive Maintenance Program.  

ERIC Educational Resources Information Center

The steps of a preventive maintenance program are to determine what equipment will fall within the program; to determine what tasks are necessary to perform the required maintenance, and the frequency of each task; and to build a workable schedule. (Author/MLF)

Dwyer, Michael J., Jr.

1980-01-01

467

School Facilities Maintenance and Operations Manual.  

ERIC Educational Resources Information Center

Often a community's largest single investment is in its physical plants, including public school buildings and grounds. An essential factor in efficient school district operation is a well-organized, responsive plant operations and maintenance division. Maintenance has generally been defined as those services, activities, and procedures concerned…

Association of School Business Officials International, Reston, VA.

468

Perspectives on maintenance therapy in lupus nephritis  

PubMed Central

Maintenance immunosuppressive drug therapy is necessary to counter the propensity of lupus nephritis to relapse. Claims that mycophenolate mofetil might be the magic bullet for both induction and maintenance therapies merit critical reappraisal due to inconsistent evidence of the superiority of mycophenolate mofetil over azathioprine, as well as its inordinately greater cost. PMID:22310950

Balow, James E.

2013-01-01

469

Evaluation of Advanced Winter Highway Maintenance Strategies  

Microsoft Academic Search

Highway agencies face demands to maintain or improve the existing winter roadway level of service. The benefits of advanced winter high- way maintenance strategies now become more attractive. This paper examines the potential benefits of applying advanced winter highway maintenance strategies. The Vermont Agency of Transportation con- ducted \\

DUANE E. SMITH; JEFFREY A. ZOGG

470

TQM and BPR: lessons for maintenance management  

Microsoft Academic Search

Competitive pressures on manufacturing organisations have obliged them to look at all improvement possibilities. Among the most popular and well-documented change interventions have been total quality management (TQM) and business process reengineering (BPR). As the management of physical assets now accounts for a rapidly increasing share of operational costs, greater attention is being directed to maintenance thinking. Two maintenance interventions

I. B. Hipkin; C. De Cock

2000-01-01

471

Computer Applications To An Integrated Maintenance System.  

ERIC Educational Resources Information Center

A computerized system for maintenance management is described in terms of components--inventory control, scheduling of custodial work, preventive maintenance, new work and review and analysis. A flow chart for the system is presented showing the interrelation of the components and the details of each component, for example, 'New Work' includes…

Berry, John A.; Roberson, Robert

472

Video monitoring system for large maintenance machinery  

Microsoft Academic Search

Large railway maintenance machinery plays a significant role in ensuring the railway running safety. Video monitoring system for monitoring the process of maintenance and construction such as the tamping machine is an important research topic to achieve the goal of supervising the working state and working quality. A video monitoring system based on TMS320DM642 DSP?» local network and GPRS is

Xie Jiangsheng

2011-01-01

473

Plumbing. Building Maintenance. Module III. Instructor's Guide.  

ERIC Educational Resources Information Center

This curriculum guide, one of six modules keyed to the building maintenance competency profile developed by industry and education professionals, provides materials for a plumbing procedures unit of seven lessons. Lesson topics are: safety procedures, joining pipes, water systems, fixtures and appliances, maintenance and repair, drainage systems,…

Brunk, Art

474

Problematics of different technical maintenance for computers  

NASA Technical Reports Server (NTRS)

Two modes of operations are used in the technical maintenance of computers: servicing provided by the equipment supplier, and that done by specially trained computer users. The advantages and disadvantages of both modes are discussed. Maintenance downtime is tabulated for two computers serviced by user employees over an eight year period.

Dostalek, Z.

1977-01-01

475

Classification of critical spares for aircraft maintenance  

Microsoft Academic Search

Maintenance planning is a major aspect for the aircraft manufacturers and airlines. Not having adequate spare parts in the inventory for the scheduled maintenance could result in costly flight cancellation with a negative impact on airline performance. An excess of spare parts inventory, on the other hand, leads to a high holding cost. Since airline industries involve with a large

T. Rad; N. Shanmugarajan; M. I. M. Wahab

2011-01-01

476

Software Testing and Maintenance 1 Regression Testing  

E-print Network

1 Software Testing and Maintenance 1 Regression Testing Introduction Test Selection Test Minimization Test Prioritization Summary Software Testing and Maintenance 2 What is it? Regression testing refers to the portion of the test cycle in which a program is tested to ensure that changes do not affect

Lei, Jeff Yu

477

On aircraft scheduled maintenance program development  

Microsoft Academic Search

Purpose – The purpose of this paper is to present issues and challenges of scheduled maintenance task development within the maintenance review board (MRB) process, and to find potential areas of improvement in the application of the MSG-3 methodology for aircraft systems. Design\\/methodology\\/approach – The issues and challenges as well as potential areas of improvement have been identified through a

Alireza Ahmadi; Peter Söderholm; Uday Kumar

2010-01-01

478

A Ubiquitous Computing environment for aircraft maintenance  

Microsoft Academic Search

Ubiquitous Computing bears a high potential in the area of aircraft maintenance. Extensive requirements regarding quality, safety, and documentation as well as high costs for having aircrafts idle during maintenance demand for an efficient execution of the process. Major weaknesses that impact the efficiency of the process are an inadequate tool management, human erros, and labour intensive manual documentation and

Matthias Lampe; Martin Strassner; Elgar Fleisch

2004-01-01

479

Parking Problem  

ERIC Educational Resources Information Center

This is the story of a real problem, not a problem that is contrived, or invented for the convenience of the appropriate planning tool. This activity by a group of students, defined simply as "8FN", might be likened to an "end of term concert". If you just happened to be a delegate at the ATM Conference 2003 you might remember the analogy. Social…

Foster, Colin

2012-01-01

480

Problem Solving  

NSDL National Science Digital Library

This page of videos is designed to showcase classrooms in which the NCTM Process Standards are evident. Scroll to video #48, Problem Solving, and select the "VoD" box to view this half-hour video. It includes 13 classroom excerpts from lessons that illustrate students investigating and learning mathematics through problem solving. Teachers share their approaches and observations.

Boston, Wgbh

1997-01-01

481

CleanFleet. Final report: Volume 3, vehicle maintenance and durability  

SciTech Connect

CleanFleet is a demonstration of panel vans operating on five alternative motorfuels in commercial package delivery operations in the South Coast Air Basin of California. The five alternative fuels are propane gas, compressed natural gas (CNG), California Phase 2 reformulated gasoline (RFG), methanol (M-85 with 15 percent RFG), and electricity. Data were gathered on in-use emissions, operations, and fleet economics. This volume of the final report summarizes the maintenance required on these vans from the time they were introduced into the demonstration (April through early November 1992) until the end of the demonstration in September 1994. The vans were used successfully in FedEx operations; but, to varying degrees, the alternative fuel vehicles required more maintenance than the unleaded gasoline control vehicles. The maintenance required was generally associated with the development state of the fuel-related systems. During the demonstration, no non-preventive maintenance was required on the highly developed fuel-related systems in any of the unleaded gasoline production vehicles used either as controls or as RFG test vehicles. The maintenance problems encountered with the less developed systems used in this demonstration may persist in the short term with vehicles featuring the same or similar systems. This means that fleet operators planning near-term acquisitions of vehicles incorporating such systems should consider the potential for similar problems when (1) selecting vendors and warranty provisions and (2) planning maintenance programs.

NONE

1995-12-01

482

Temporal Resolution [Loop Search  

E-print Network

perform the following steps. 1. Transform A into SNF, giving a set of clauses AS. 2. Perform step Logic [TEMPORAL RESOLUTION: LOOP SEARCH] ­ p.2/24 #12;Merged SNF To apply the temporal resolution rule, it is often convenient to combine one or more step clauses. Consequently, a variant on SNF called merged-SNF

Fisher, Michael

483

GYDER: maxent metonymy resolution  

Microsoft Academic Search

Though the GYDER system has achieved the highest accuracy scores for the metonymy resolution shared task at SemEval-2007 in all six subtasks, we don't consider the results (72.80% accuracy for org, 84.36% for loc) particularly impres- sive, and argue that metonymy resolution needs more features.

Eszter Simon

484

A Conflict Resolution Model  

ERIC Educational Resources Information Center

The Conflict Resolution Model was formulated by a group of Australian psychologists who set about integrating the literature on achieving mutually beneficial outcomes in a conflict situation in order to create a best-practice prescriptive process for conflict resolution. A number of experimental studies conducted at the University of Tasmania with…

Davidson, John; Wood, Christine

2004-01-01

485

Temporal Resolution [Normal Form  

E-print Network

Michael Fisher An Introduction to Practical Formal Methods Using Temporal Logic [TEMPORAL RESOLUTION: SNF] ­ p.1/20 Recap: SNF As in classical resolution, PTL formulae are transformed into a clausal form; in our case SNF: i Ci where each PTL-clause, Ci , is in one of the following forms: start c lc (an

Fisher, Michael

486

Temporal Resolution [Normal Form  

E-print Network

Michael Fisher An Introduction to Practical Formal Methods Using Temporal Logic [TEMPORAL RESOLUTION: SNF] ­ p.1/20 #12;Recap: SNF As in classical resolution, PTL formulae are transformed into a clausal form; in our case SNF: i Ci where each PTL-clause, Ci , is in one of the following forms: start c lc (an

Fisher, Michael

487

A glue for heterochromatin maintenance  

PubMed Central

Trimethylation of histone H3 lysine 9 and the subsequent binding of heterochromatin protein 1 (HP1) mediate the formation and maintenance of pericentromeric heterochromatin. Trimethylation of H3K9 is governed by the histone methyltransferase SUV39H1. Recent studies of HP1 dynamics revealed that HP1 is not a stable component of heterochromatin but is highly mobile (Cheutin, T., A.J. McNairn, T. Jenuwein, D.M. Gilbert, P.B. Singh, and T. Misteli. 2003. Science. 299:721–725; Festenstein, R., S.N. Pagakis, K. Hiragami, D. Lyon, A. Verreault, B. Sekkali, and D. Kioussis. 2003. Science. 299:719–721). Because the mechanism by which SUV39H1 is recruited to and interacts with heterochromatin is unknown, we studied the dynamic properties of SUV39H1 in living cells by using fluorescence recovery after photobleaching and fluorescence resonance energy transfer. Our results show that a substantial population of SUV39H1 is immobile at pericentromeric heterochromatin, suggesting that, in addition to its catalytic activity, SUV39H1 may also play a structural role at pericentromeric regions. Analysis of SUV39H1 deletion mutants indicated that the SET domain mediates this stable binding. Furthermore, our data suggest that the recruitment of SUV39H1 to heterochromatin is at least partly independent from that of HP1 and that HP1 transiently interacts with SUV39H1 at heterochromatin. PMID:16103223

Krouwels, Ilke M.; Wiesmeijer, Karien; Abraham, Tsion E.; Molenaar, Chris; Verwoerd, Nico P.; Tanke, Hans J.; Dirks, Roeland W.

2005-01-01

488

Does the Health Maintenance Facility Provide Speciality Capabilities?  

NASA Technical Reports Server (NTRS)

The Health Maintenance Facility (HMF) is capable of handling all minor illnesses, most moderate illnesses, and some major illnesses on board a space station. Its primary purpose should be to treat problems that are mission threatening, not life threatening. The HMF will have greater medical capabilities than those currently on Navy submarines. Much of the discussion in this document focuses on the possibilities of treating specific medical conditions on board a space station. The HMF will be limited to caring for critically ill patients for a few days, so a crew return vehicle will be important.

Boyce, Joey; Wurgler, James; Broadwell, Kim; Martin, William; Stiernberg, Charles M.; Bove, Alfred; Fromm, Rob; O'Neill, Daniel

1991-01-01

489

High-resolution two dimensional advective transport  

USGS Publications Warehouse

The paper describes a two-dimensional high-resolution scheme for advective transport that is based on a Eulerian-Lagrangian method with a flux limiter. The scheme is applied to the problem of pure-advection of a rotated Gaussian hill and shown to preserve the monotonicity property of the governing conservation law.

Smith, P.E.; Larock, B.E.

1989-01-01

490

2½D conflict resolution maneuvers for ATMS  

Microsoft Academic Search

This work is motivated by the current trend in the aviation community to move towards decentralized air traffic management systems (ATMS), in which the aircraft operate in “free flight” mode instead of following prespecified “freeways in the sky”. Automatic conflict resolution strategies are an integral part of the free flight setting. Given the nature of the problem, the limited sensing

Jana Kosecká; Claire Tomlin; George Pappas; Shankar Sastry

1998-01-01

491

Identifying Human Factors Issues in Aircraft Maintenance Operations  

NASA Technical Reports Server (NTRS)

Maintenance operations incidents submitted to the Aviation Safety Reporting System (ASRS) between 1986-1992 were systematically analyzed in order to identify issues relevant to human factors and crew coordination. This exploratory analysis involved 95 ASRS reports which represented a wide range of maintenance incidents. The reports were coded and analyzed according to the type of error (e.g, wrong part, procedural error, non-procedural error), contributing factors (e.g., individual, within-team, cross-team, procedure, tools), result of the error (e.g., aircraft damage or not) as well as the operational impact (e.g., aircraft flown to destination, air return, delay at gate). The main findings indicate that procedural errors were most common (48.4%) and that individual and team actions contributed to the errors in more than 50% of the cases. As for operational results, most errors were either corrected after landing at the destination (51.6%) or required the flight crew to stop enroute (29.5%). Interactions among these variables are also discussed. This analysis is a first step toward developing a taxonomy of crew coordination problems in maintenance. By understanding what variables are important and how they are interrelated, we may develop intervention strategies that are better tailored to the human factor issues involved.

Veinott, Elizabeth S.; Kanki, Barbara G.; Shafto, Michael G. (Technical Monitor)

1995-01-01

492

IMPROVING MAGNETIC RESONANCE RESOLUTION WITH SUPERVISED LEARNING  

PubMed Central

Despite ongoing improvements in magnetic resonance (MR) imaging (MRI), considerable clinical and, to a lesser extent, research data is acquired at lower resolutions. For example 1 mm isotropic acquisition of T1-weighted (T1-w) Magnetization Prepared Rapid Gradient Echo (MPRAGE) is standard practice, however T2-weighted (T2-w)—because of its longer relaxation times (and thus longer scan time)—is still routinely acquired with slice thicknesses of 2–5 mm and in-plane resolution of 2–3 mm. This creates obvious fundamental problems when trying to process T1-w and T2-w data in concert. We present an automated supervised learning algorithm to generate high resolution data. The framework is similar to the brain hallucination work of Rousseau, taking advantage of new developments in regression based image reconstruction. We present validation on phantom and real data, demonstrating the improvement over state-of-the-art super-resolution techniques.

Jog, Amod; Carass, Aaron; Prince, Jerry L.

2014-01-01

493

Our problem.  

PubMed

A resolution about the AIDS pandemic adopted by African-American leaders at the Leading for Life summit on October 1996 is presented. Alvin Poussaint of the Harvard Medical School believes the response to the AIDS pandemic needs to have the same energy and moral urgency as that displayed during the civil rights movement; however, it is observed that passion among the African-American community falls short of what is needed. A call for action has been initiated, including more attention being paid to clinical trials using African-American subjects, an issue resulting from the Tuskegee incident. Overcoming socioeconomic barriers to study participation, and the feeling of shame surrounding AIDS among African Americans also needs to be addressed. The resolution calls for the African-American community to join together in a national emergency effort to better inform African-American families about HIV/AIDS prevention education, care, and treatment issues. PMID:11363961

Wilson, P

1997-01-01

494

Building an experience factory for maintenance  

NASA Technical Reports Server (NTRS)

This paper reports the preliminary results of a study of the software maintenance process in the Flight Dynamics Division (FDD) of the National Aeronautics and Space Administration/Goddard Space Flight Center (NASA/GSFC). This study is being conducted by the Software Engineering Laboratory (SEL), a research organization sponsored by the Software Engineering Branch of the FDD, which investigates the effectiveness of software engineering technologies when applied to the development of applications software. This software maintenance study began in October 1993 and is being conducted using the Quality Improvement Paradigm (QIP), a process improvement strategy based on three iterative steps: understanding, assessing, and packaging. The preliminary results represent the outcome of the understanding phase, during which SEL researchers characterized the maintenance environment, product, and process. Findings indicate that a combination of quantitative and qualitative analysis is effective for studying the software maintenance process, that additional measures should be collected for maintenance (as opposed to new development), and that characteristics such as effort, error rate, and productivity are best considered on a 'release' basis rather than on a project basis. The research thus far has documented some basic differences between new development and software maintenance. It lays the foundation for further application of the QIP to investigate means of improving the maintenance process and product in the FDD.

Valett, Jon D.; Condon, Steven E.; Briand, Lionel; Kim, Yong-Mi; Basili, Victor R.

1994-01-01

495

Effective maintenance practices to manage system aging  

SciTech Connect

For a variety of economic and technical reasons, there has been a growing concern with the aging of complex systems and components and the role that maintenance can play in reducing this degradation. A study for the Nuclear Regulatory Commission was recently undertaken to identify effective maintenance practices that could be adapted by the nuclear industry in the United States to assist in managing the aging degradation of plant systems and components. Four organizations were examined to assess the influence that their maintenance programs have on their ability to address the systems and component aging degradation issues. An effective maintenance program was found to be essential to the management of system and component aging. The four key elements of an effective maintenance program that are important to an aging management program were identified. These are: the selection of critical systems and components; the development of an understanding of aging through the collection and analysis of equipment performance information; the development of appropriate preventive and predictive maintenance tasks to manage equipment and system aging degradation; the use of feedback mechanisms to continuously improve the management of aging systems and components. These elements were found to be common to all four organizations. In examining how the four organizations have structured their maintenance programs to include these key elements provides valuable lessons not only for the nuclear power industry, but also for any industrial organization that is concerned with the management of system and component aging degradation. This document provides detail, of these studies.

Chockie, A.; Bjorkelo, K.

1992-01-01

496

Problem Solving  

NSDL National Science Digital Library

Students are introduced to a systematic procedure for solving problems through a demonstration and then the application of the method to an everyday activity. The unit project is introduced to provide relevance to subsequent lessons.

Office Of Educational Partnerships

497

Foot Problems  

MedlinePLUS

Foot Problems Basic Facts & Information Foot pain and foot disorders are common complaints among older people. Foot ... to exercise and keep fit. Structure of the Foot Each of your feet contains 26 bones, 33 ...

498

Erection problems  

MedlinePLUS

... use recreational drugs? What is your state of mind? Are you stressed, depressed, or anxious? Are you having relationship problems? You may have a number of different tests to help find the cause, ...

499

Urination Problems  

MedlinePLUS

... back or groin? Yes You may have a KIDNEY STONE or another serious problem. EMERGENCY See your doctor ... the bladder, called INTERSTITIAL CYSTITIS, or from a KIDNEY STONE stuck in the bladder, or a chemical in ...

500

Real-time 3D shape measurement system with full temporal resolution and spatial resolution  

NASA Astrophysics Data System (ADS)

Numerous fast 3D shape measurement systems based on pattern projection method have been developed in the recent years, but measuring arbitrary dynamic 3D shape with full resolution, including temporal resolution and spatial resolution, is still a big challenging problem. This paper presents a real-time 3D measurement system with full spatial resolution and temporal resolution. In this system, three-step phase-shifting algorithm is employed for full spatial resolution measurement, and a multi-view phase-shifting correspondence is used to search the corresponding point independently without additional images. So any adjacent three phase-shifting images in the continuous capturing stream can be used to reconstruct arbitrary 3D shape, the 3D acquisition speed can be as fast as the camera capturing speed to achieve full temporal resolution. Moreover, for developing an accurate measurement system the calibration method is also presented, and it can obtain more accurate internal and external parameters than traditional method in presence of inaccuracy of calibration target. And a hybrid computing architecture based accelerate calculation method is introduced to achieve real-time 3D measurement, and the computation speed can be above 280 times faster than before. The experiments indicate that our system can perform 1024 × 768 full spatial resolution and 220 fps full temporal resolution 3D measurement, and it can also realize real-time 3D measurement at average speed of 50 fps.

Zhong, Kai; Li, Zhongwei; Zhou, Xiaohui; Zhan, Guomin; Liu, XingJian; Shi, Yusheng; Wang, Congjun

2014-03-01