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1

A waterjet mining machine for use in room and pillar mining operations. [Final report  

SciTech Connect

A new mining machine is constructed for use in room and pillar mining operations. This machine uses the action of computer controlled, centrally located high pressure cutting lances to cut deep slots in a coal face. These slots stress relieve the coal ahead of the machine and outline blocks of coal. The movement forward of the machine then wedges up the lower block of coal. This wedging action is assisted by the gathering arms of the loader section of the machine, and by underlying oscillating waterjets which create a slot ahead of the loading wedge as it advances. Finally the top section of coal is brought down by the sequential advance of wedge faced roof support members, again assisted by the waterjet action from the central cutting arms. The machine is designed to overcome major disadvantages of existing room and pillar mining machines in regard to a reduction in respirable dust, the creation of an immediate roof support, and an increase in product size, with concomitant reduction in cleaning costs.

Summers, D.A.

1990-06-01

2

Stirling machine operating experience  

NASA Technical Reports Server (NTRS)

Numerous Stirling machines have been built and operated, but the operating experience of these machines is not well known. It is important to examine this operating experience in detail, because it largely substantiates the claim that Stirling machines are capable of reliable and lengthy lives. The amount of data that exists is impressive, considering that many of the machines that have been built are developmental machines intended to show proof of concept, and were not expected to operate for any lengthy period of time. Some Stirling machines (typically free-piston machines) achieve long life through non-contact bearings, while other Stirling machines (typically kinematic) have achieved long operating lives through regular seal and bearing replacements. In addition to engine and system testing, life testing of critical components is also considered.

Ross, Brad; Dudenhoefer, James E.

1991-01-01

3

Stirling machine operating experience  

SciTech Connect

Numerous Stirling machines have been built and operated, but the operating experience of these machines is not well known. It is important to examine this operating experience in detail, because it largely substantiates the claim that stirling machines are capable of reliable and lengthy operating lives. The amount of data that exists is impressive, considering that many of the machines that have been built are developmental machines intended to show proof of concept, and are not expected to operate for lengthy periods of time. Some Stirling machines (typically free-piston machines) achieve long life through non-contact bearings, while other Stirling machines (typically kinematic) have achieved long operating lives through regular seal and bearing replacements. In addition to engine and system testing, life testing of critical components is also considered. The record in this paper is not complete, due to the reluctance of some organizations to release operational data and because several organizations were not contacted. The authors intend to repeat this assessment in three years, hoping for even greater participation.

Ross, B. [Stirling Technology Co., Richland, WA (United States); Dudenhoefer, J.E. [Lewis Research Center, Cleveland, OH (United States)

1994-09-01

4

CRADA final report for CRADA number Y-1293-0185: Process modelling and machining operations development  

SciTech Connect

Lockheed Martin Energy Systems, Inc. and Ferro Corporation (formerly W. R. Grace, the original CRADA partner) have collaborated on an effort to develop techniques and processes for the cost-effective machining of ceramic components. The purpose of this effort was to develop a machining model, and grinding equipment machines and techniques for fabricating precision ceramic components. This project was designed to support Department of Energy (DOE) technical needs in manufacturing hard materials as well as enabling U.S. industry to maintain a position of leadership in the production of precision grinding machines and the machining of structural ceramic components.

Arnold, J.B.; Kruse, K.L.; Stone, P.K. [and others

1996-09-16

5

Research Support in Hungary Machine scheduling LED public lighting Microsimulation in public transportation Finally Optimization and Operation Research methods for  

E-print Network

Research Support in Hungary Machine scheduling LED public lighting Microsimulation in public, 2011 Industrial Innovation Problems #12;Research Support in Hungary Machine scheduling LED public Innovation Problems #12;Research Support in Hungary Machine scheduling LED public lighting Microsimulation

Balázs, Bánhelyi

6

Selection of sewing machine operators  

Microsoft Academic Search

50 sewing machine operators from a glove manufacturing concern, 25 from the highest fourth in earnings (at piece rate) and 25 from the lowest fourth, were administered the MacQuarrie Test for Mechanical Ability and the Blum Sewing Machine Test, the latter a simple work-sample test. Supervisors' ratings were obtained for these 50 operators. These ratings and earnings were used as

M. L. Blum

1943-01-01

7

Standard Operating Procedure (SOP) -Milling Machine  

E-print Network

Standard Operating Procedure (SOP) - Milling Machine · Keep all guards in place while operating the machine. · While operating the milling machine allow no one else to touch it. · Keep hands away from moving cutting tools. · Do not make measurements of the stock while the milling machine is powered. · Do

Veiga, Pedro Manuel Barbosa

8

30 CFR 18.61 - Final inspection of complete machine.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false Final inspection of complete machine. 18.61 Section 18.61 Mineral Resources... 18.61 Final inspection of complete machine. (a) A completely assembled new machine or a substantially modified design...

2011-07-01

9

30 CFR 18.61 - Final inspection of complete machine.  

Code of Federal Regulations, 2014 CFR

...2014-07-01 false Final inspection of complete machine. 18.61 Section 18.61 Mineral Resources... 18.61 Final inspection of complete machine. (a) A completely assembled new machine or a substantially modified design...

2014-07-01

10

30 CFR 18.61 - Final inspection of complete machine.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Final inspection of complete machine. 18.61 Section 18.61 Mineral Resources... 18.61 Final inspection of complete machine. (a) A completely assembled new machine or a substantially modified design...

2010-07-01

11

30 CFR 18.61 - Final inspection of complete machine.  

Code of Federal Regulations, 2012 CFR

...2012-07-01 false Final inspection of complete machine. 18.61 Section 18.61 Mineral Resources... 18.61 Final inspection of complete machine. (a) A completely assembled new machine or a substantially modified design...

2012-07-01

12

30 CFR 18.61 - Final inspection of complete machine.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 false Final inspection of complete machine. 18.61 Section 18.61 Mineral Resources... 18.61 Final inspection of complete machine. (a) A completely assembled new machine or a substantially modified design...

2013-07-01

13

Machine vision for real time orbital operations  

NASA Technical Reports Server (NTRS)

Machine vision for automation and robotic operation of Space Station era systems has the potential for increasing the efficiency of orbital servicing, repair, assembly and docking tasks. A machine vision research project is described in which a TV camera is used for inputing visual data to a computer so that image processing may be achieved for real time control of these orbital operations. A technique has resulted from this research which reduces computer memory requirements and greatly increases typical computational speed such that it has the potential for development into a real time orbital machine vision system. This technique is called AI BOSS (Analysis of Images by Box Scan and Syntax).

Vinz, Frank L.

1988-01-01

14

Machine Learning with Operational Costs  

E-print Network

This work proposes a way to align statistical modeling with decision making. We provide a method that propagates the uncertainty in predictive modeling to the uncertainty in operational cost, where operational cost is the ...

Rudin, Cynthia

15

Light Machines Operator Performance Support System  

SciTech Connect

The objective of this project was to create a multimedia operator performance support system (OPSS) shell that would provide a framework for delivering appropriate information to the student/novice machine tool user just when needed and in the most appropriate form. In addition, the program was designed so that it could be expanded and further developed by Light Machines personnel. The expertise of AlliedSignal Federal Manufacturing and Technologies (ASFM and T) in the areas of performance support system design and multimedia creation was employed to create the most user-friendly graphical user interface (GUI) while providing access to key topical areas. Light Machines provided a subject matter expert from their technical services group in order to provide the needed information for structuring the OPSS shell. They also provided a Benchman VMC 4000 machine tool at the ASFM and T New Mexico location as well as specific instruction on the safe and effective use of that machine tool.

Bohley, M.C.

1998-06-15

16

On-machine ultrasonic sensors for paper stiffness. Final report  

SciTech Connect

This final report presents the results of a 5-year effort by the Institute of Paper Science and Technology (IPST) and its participating partners. The objective of this work was to develop and demonstrate sensors capable of measuring the velocity of ultrasound in the out-of-plane (ZD) and in-plane directions of paper as it is being produced on a commercial paper machine. On-machine ultrasonic measurements can be used to determine various mechanical properties of paper and to monitor process status and product quality. This report first presents a review of the background and potential benefits of on-machine ultrasonic measurements, then summarizes the results of previous work. The ZD measurement system involving the use of ultrasonic transducers in fluid-filled wheels is described in detail, including the method of measurement, the wheel mounting hardware, the on-machine operation, and an overview of the system software. Mill-trial results from two bump tests when producing 69{number_sign} and 55{number_sign} linearboard are presented. For the 69{number_sign} trial the correlation of ZD transit time with plybond and with ZDT (Z-direction tensile or internal bond strength) was greater than 0.8 (R squared). Also observed were ZD stiffness responses to refining and to calendering. ABB Industrial Systems Inc. was responsible for the in-plane sensor. A paper describing ABB's sensor and mill experience is appended.

Hall, Maclin S.; Jackson, Theodore G.; Brown, Ernest (Andy)

2000-04-01

17

Musculoskeletal disorders among male sewing machine operators in shoemaking  

Microsoft Academic Search

Research on the relationship between the operation of sewing machines and the appearance of musculoskeletal disorders has been conducted mainly among women working in garment or textile production, in developed countries; little is known about male sewing machine operators in other industries, in less developed countries. This study involved 143 Mexican men operating sewing machines in eight shoe factories; 132

J. NIEVES SERRATOS-PEREZ; CARLOS MENDIOLA-ANDA

1993-01-01

18

MACHINING OF REFRACTORY MATERIALS. Final Technical Report  

Microsoft Academic Search

Machining characteristics are presented for unalloyed tungsten; ; molybdenum, niobium, and tantalum alloys; Rene 41; B-120 VCA titanium; D8AC steel ; 52-58R\\/sub c\\/; Refrasil; Pyroceram; zirconium oxide; and aluminum oxide coatings. ; These represent some of the most difficult to machine materials presently being ; fabricated into aerospace components. Test data are also included on high-speed ; edge milling of

N. Zlatin; M. Field; W. P. Koster; J. V. Gould

1963-01-01

19

Fault tolerant operation of switched reluctance machine  

NASA Astrophysics Data System (ADS)

The energy crisis and environmental challenges have driven industry towards more energy efficient solutions. With nearly 60% of electricity consumed by various electric machines in industry sector, advancement in the efficiency of the electric drive system is of vital importance. Adjustable speed drive system (ASDS) provides excellent speed regulation and dynamic performance as well as dramatically improved system efficiency compared with conventional motors without electronics drives. Industry has witnessed tremendous grow in ASDS applications not only as a driving force but also as an electric auxiliary system for replacing bulky and low efficiency auxiliary hydraulic and mechanical systems. With the vast penetration of ASDS, its fault tolerant operation capability is more widely recognized as an important feature of drive performance especially for aerospace, automotive applications and other industrial drive applications demanding high reliability. The Switched Reluctance Machine (SRM), a low cost, highly reliable electric machine with fault tolerant operation capability, has drawn substantial attention in the past three decades. Nevertheless, SRM is not free of fault. Certain faults such as converter faults, sensor faults, winding shorts, eccentricity and position sensor faults are commonly shared among all ASDS. In this dissertation, a thorough understanding of various faults and their influence on transient and steady state performance of SRM is developed via simulation and experimental study, providing necessary knowledge for fault detection and post fault management. Lumped parameter models are established for fast real time simulation and drive control. Based on the behavior of the faults, a fault detection scheme is developed for the purpose of fast and reliable fault diagnosis. In order to improve the SRM power and torque capacity under faults, the maximum torque per ampere excitation are conceptualized and validated through theoretical analysis and experiments. With the proposed optimal waveform, torque production is greatly improved under the same Root Mean Square (RMS) current constraint. Additionally, position sensorless operation methods under phase faults are investigated to account for the combination of physical position sensor and phase winding faults. A comprehensive solution for position sensorless operation under single and multiple phases fault are proposed and validated through experiments. Continuous position sensorless operation with seamless transition between various numbers of phase fault is achieved.

Wang, Wei

20

F-111 windscreen machining. Final report  

SciTech Connect

Studies were conducted to determine the feasibility of improving the optical image transmitted through a military aircraft windscreen by using single-point diamond turning. Reduced warpage (waviness) of the windscreen surfaces ensures that a more accurate optical image is presented to the aircraft pilot. Machining the acrylic surface was accomplished with slightly impared image transmissibility. The use of this technique as a potential production process is discussed.

Gerth, H. L.; Brown, R. J.

1980-09-22

21

Food labeling; calorie labeling of articles of food in vending machines. Final rule.  

PubMed

To implement the vending machine food labeling provisions of the Patient Protection and Affordable Care Act of 2010 (ACA), the Food and Drug Administration (FDA or we) is establishing requirements for providing calorie declarations for food sold from certain vending machines. This final rule will ensure that calorie information is available for certain food sold from a vending machine that does not permit a prospective purchaser to examine the Nutrition Facts Panel before purchasing the article, or does not otherwise provide visible nutrition information at the point of purchase. The declaration of accurate and clear calorie information for food sold from vending machines will make calorie information available to consumers in a direct and accessible manner to enable consumers to make informed and healthful dietary choices. This final rule applies to certain food from vending machines operated by a person engaged in the business of owning or operating 20 or more vending machines. Vending machine operators not subject to the rules may elect to be subject to the Federal requirements by registering with FDA. PMID:25438345

2014-12-01

22

Job Grading Standard for Machine Tool Operator, WG-3431.  

ERIC Educational Resources Information Center

The standard covers nonsupervisory work involved in the set up, adjustment, and operation of conventional machine tools to perform machining operations in the manufacture and repair of castings, forgings, or parts from raw stock made of various metals, metal alloys, and other materials. A general description of the job at both the WG-8 and WG-9

Civil Service Commission, Washington, DC. Bureau of Policies and Standards.

23

Work stress of women in sewing machine operation.  

PubMed

The study examined the work stresses of 107 women who were engaged in sewing machine operation in small garment manufacturing units. Of the three types of sewing machines (motor-operated, full and half shuttle foot-operated), 74% of the machines were foot-operated, where throttle action of the lower limb is required to move the shuttle of the machine. The motor-operated machines were faster than the foot-operated machines. The short cycle sewing work involves repetitive action of hand and feet. The women had to maintain a constant seated position on a stool without backrest and the body inclined forward. Long-term sewing work had a cumulative load on the musculo-skeletal structures, including the vertebral column and reflected in the form of high prevalence of discomfort and pain in different body parts. About 68% of the women complained of back pain, among whom 35% reported a persistent low back pain. Common sewing work accident is piercing of the needle through the fingers, particularly the right forefingers. Unsatisfactory man-machine incompatibility, work posture and fatigue, improper coordination of eye, leg and hand are the major problems of the operators. The design mis-match of the work place may be significantly improved by taking women's anthropometric dimensions in modifying the workplace, i.e. the seat surface, seat height, work height, backrest, etc. PMID:1491171

Nag, A; Desai, H; Nag, P K

1992-06-01

24

Teaching "Embedded Operating Systems" using Raspberry Pi and Virtual Machines  

E-print Network

Teaching "Embedded Operating Systems" using Raspberry Pi and Virtual Machines Diego R. Llanos Dpto of virtual machines and Raspberry Pi kits. Our experience shows that the topics covered and the project the case of the Raspberry Pi microcomputer. The Raspberry Pi [1] is a credit-card sized computer board

Llanos, Diego R.

25

HUNTER 20 MATCHPLATE MOLDING MACHINE, OPERATING THE SAME AS THE ...  

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

HUNTER 20 MATCHPLATE MOLDING MACHINE, OPERATING THE SAME AS THE HUNTER 10 AND OTHER HUNTER 20 COMPRESSES BOTH MOLD HALVES OVER A DOUBLE-SIDED MATCH PLATE PATTERN. DENNIS GRAY TESTS A MOLD'S HARDNESS TO ENSURE SAND MIXTURE AND MACHINE COMPRESSIBILITY ARE CORRECT. - Southern Ductile Casting Company, Casting, 2217 Carolina Avenue, Bessemer, Jefferson County, AL

26

Machining Process Control A machining force process of a turning operation that includes servomechanism dynamics is  

E-print Network

Machining Process Control QUESTION 1 A machining force process of a turning operation that includes controller and plot the time history of the feed and the force. Ignore the force process dynamics when designing the force controller. The initial feed is 0 mm, the desired closedloop time constant is 0.4 s

Landers, Robert G.

27

Discomfort Analysis in Computerized Numeric Control Machine Operations  

PubMed Central

Objectives The introduction of computerized numeric control (CNC) technology in manufacturing industries has revolutionized the production process, but there are some health and safety problems associated with these machines. The present study aimed to investigate the extent of postural discomfort in CNC machine operators, and the relationship of this discomfort to the display and control panel height, with a view to validate the anthropometric recommendation for the location of the display and control panel in CNC machines. Methods The postural discomforts associated with CNC machines were studied in 122 male operators using Corlett and Bishop's body part discomfort mapping, subject information, and discomfort level at various time intervals from starting to end of a shift. This information was collected using a questionnaire. Statistical analysis was carried out using ANOVA. Results Neck discomfort due to the positioning of the machine displays, and shoulder and arm discomfort due to the positioning of controls were identified as common health issues in the operators of these machines. The study revealed that 45.9% of machine operators reported discomfort in the lower back, 41.8% in the neck, 22.1% in the upper-back, 53.3% in the shoulder and arm, and 21.3% of the operators reported discomfort in the leg. Conclusion Discomfort increased with the progress of the day and was highest at the end of a shift; subject age had no effect on patient tendency to experience discomfort levels. PMID:22993720

Sankaranarayanasamy, Krishnasamy; Ganguli, Anindya Kumar

2012-01-01

28

Finite State Machines Final State Identification Initial State Identification FSM-Based Testing  

E-print Network

Finite State Machines Final State Identification Initial State Identification FSM-Based Testing Mousavi: FSM-Based Testing Part I #12;Finite State Machines Final State Identification Initial State Identification Outline Finite State Machines Final State Identification Initial State Identification Mousavi: FSM

Mousavi, Mohammad

29

Laboratory directed research and development final report: Intelligent tools for on-machine acceptance of precision machined components  

SciTech Connect

On-Machine Acceptance (OMA) is an agile manufacturing concept being developed for machine tools at SNL. The concept behind OMA is the integration of product design, fabrication, and qualification processes by using the machining center as a fabrication and inspection tool. This report documents the final results of a Laboratory Directed Research and Development effort to qualify OMA.

Christensen, N.G.; Harwell, L.D.; Hazelton, A.

1997-02-01

30

DETAIL OF STANDARD INTERLOCKING MACHINE OPERATING LEVERS. LOCKING MECHANISM IS ...  

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

DETAIL OF STANDARD INTERLOCKING MACHINE OPERATING LEVERS. LOCKING MECHANISM IS BELOW FLOOR. BOXES BEHIND SOME LEVERS HOUSE ELECTRICAL CONTACTS FOR SIGNALS. - Baltimore & Ohio Railroad, Z Tower, State Route 46, Keyser, Mineral County, WV

31

A trade test for power sewing machine operators  

Microsoft Academic Search

A trade test for power sewing machine operators consisting of 4 work samples was devised. Test scores correlated .64 with supervisors' ratings, .53 with production records, and .67 with combined criteria.

Edward Glanz

1949-01-01

32

13. INTERIOR, OPERATOR'S HOUSE, ELECTROMECHANICAL INTERLOCKING MACHINE New York, ...  

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

13. INTERIOR, OPERATOR'S HOUSE, ELECTRO-MECHANICAL INTERLOCKING MACHINE - New York, New Haven & Hartford Railroad, Mystic River Bridge, Spanning Mystic River between Groton & Stonington, Groton, New London County, CT

33

INTERIOR VIEW WITH CASTING MACHINE AND CASTING FOREMAN OBSERVING OPERATION ...  

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

INTERIOR VIEW WITH CASTING MACHINE AND CASTING FOREMAN OBSERVING OPERATION TO ENSURE MAXIMUM PRODUCTION AND QUALITY. - McWane Cast Iron Pipe Company, Pipe Casting Area, 1201 Vanderbilt Road, Birmingham, Jefferson County, AL

34

78 FR 21387 - Notice of Issuance of Final Determination Concerning Printer and Fax Machine  

Federal Register 2010, 2011, 2012, 2013, 2014

...Printer and Fax Machine; substantial transformation Dear Mr. Halasz...substantial transformation than the manual...laser-jet machine that operates...substantial transformation of those Chinese...printer/fax machine. The...

2013-04-10

35

Musculoskeletal disorders among male sewing machine operators in shoemaking.  

PubMed

Research on the relationship between the operation of sewing machines and the appearance of musculoskeletal disorders has been conducted mainly among women working in garment or textile production, in developed countries; little is known about male sewing machine operators in other industries, in less developed countries. This study involved 143 Mexican men operating sewing machines in eight shoe factories; 132 of them operated flat-type machines, 11 column-type machines. When studied, the operators had been in this task for at least one year. The study aimed to identify the body regions more liable to develop musculoskeletal disorders and the rates both of appearance of such troubles and of sick leave resulting from them. A questionnaire was given to each worker, asking for their work history, the presence of musculoskeletal disorders at the time of the inquiry, and the frequency of sick leave during the previous 12 months; additionally, a number of workers were filmed on video and this material was then used to identify the body regions undergoing the major work demands. 47.5% of the subjects declared current musculoskeletal disorders; a statistical difference was found when the two groups were considered separately. Low back pain was the most frequent at a rate of 18.2% for both groups; the shoulder was a site of complaint for 14% of the subjects, being three times more frequent among column-machine operators; the back as a whole was mentioned also by 14% of the subjects, all of them flat-machine operators; 4.9% of the subjects complained of neck pain and again none of the column-machine operators was affected.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:8339719

Serratos-Perez, J N; Mendiola-Anda, C

1993-07-01

36

Sewing-machine operators' work and musculo-skeletal complaints  

Microsoft Academic Search

The purpose of the study was to obtain information about the possible occupational origin of the high occurrence of musculo-skeletal (rheumatic) complaints among sewing-machine operators. The subjects were chosen by random sampling and comprised 40 sewing-machine operators with short work cycles (30-60 s) and 20 seamstresses as the reference group. The two groups were matched with respect to age and

TAPANI VIHMA; MARKKU NURMINEN; PERTTI MUTANEN

1982-01-01

37

Debugging operating systems with time-traveling virtual machines  

Microsoft Academic Search

Operating systems are difficult to debug with traditional cyclic debugging. They are non-deterministic; they run for long periods of time; they interact directly with hard- ware devices; and their state is easily perturbed by the act of debugging. This paper describes a time-traveling vir- tual machine that overcomes many of the difficulties as- sociated with debugging operating systems. Time travel

Samuel T. King; George W. Dunlap; Peter M. Chen

38

Sewing machine operation: workstation adjustment, working posture, and workers perceptions  

Microsoft Academic Search

At a traditional sewing machine workstation professional operators worked at ten different combined adjustments of table height, desk slope, and pedal position. Working posture and workers perceptions were measured. Two recommendations were formulated in order to minimize the load on the musculoskeletal system during operation, i.e. (1) the table desk should be adjusted between 5 and 15cm above elbow height

Nico J Delleman; Jan Dul

2002-01-01

39

TRUFLO GONDOLA, USED WITH THE HUNTER 10 MOLDING MACHINE, OPERATES ...  

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

TRUFLO GONDOLA, USED WITH THE HUNTER 10 MOLDING MACHINE, OPERATES THE SAME AS THE TWO LARGER TRUFLOS USED IN CONJUNCTION WITH THE TWO HUNTER 20S. EACH GONDOLA IS CONNECTED TO THE NEXT AND RIDES ON A SINGLE TRACK RAIL FROM MOLDING MACHINES THROUGH POURING AREAS CARRYING A MOLD AROUND TWICE BEFORE THE MOLD IS PUSHED OFF ONTO A VIBRATING SHAKEOUT CONVEYOR. - Southern Ductile Casting Company, Casting, 2217 Carolina Avenue, Bessemer, Jefferson County, AL

40

State Machine Operation of the MICE Cooling Channel  

NASA Astrophysics Data System (ADS)

The Muon Ionization Cooling Experiment (MICE) is a demonstration experiment to prove the feasibility of cooling a beam of muons for use in a Neutrino Factory and/or Muon Collider. The MICE cooling channel is a section of a modified Study II cooling channel which will provide a 10% reduction in beam emittance. In order to ensure a reliable measurement, MICE will measure the beam emittance before and after the cooling channel at the level of 1%, a relative measurement of 0.001. This renders MICE a precision experiment which requires strict controls and monitoring of all experimental parameters in order to control systematic errors. The MICE Controls and Monitoring system is based on EPICS and integrates with the DAQ, Data monitoring systems, and a configuration database. The cooling channel for MICE has between 12 and 18 superconductnig solenoid coils in 3 to 7 magnets, depending on the staged development of the experiment. The magnets are coaxial and in close proximity which requires coordinated operation of the magnets when ramping, responding to quench conditions, and quench recovery. To reliably manage the operation of the magnets, MICE is implementing state machines for each magnet and an over-arching state machine for the magnets integrated in the cooling channel. The state machine transitions and operating parameters are stored/restored to/from the configuration database and coupled with MICE Run Control. Proper implementation of the state machines will not only ensure safe operation of the magnets, but will help ensure reliable data quality. A description of MICE, details of the state machines, and lessons learned from use of the state machines in recent magnet training tests will be discussed.

Hanlet, Pierrick; Mice Collaboration

2014-06-01

41

A waterjet mining machine for use in room and pillar mining operations  

SciTech Connect

A new mining machine is constructed for use in room and pillar mining operations. This machine uses the action of computer controlled, centrally located high pressure cutting lances to cut deep slots in a coal face. These slots stress relieve the coal ahead of the machine and outline blocks of coal. The movement forward of the machine then wedges up the lower block of coal. This wedging action is assisted by the gathering arms of the loader section of the machine, and by underlying oscillating waterjets which create a slot ahead of the loading wedge as it advances. Finally the top section of coal is brought down by the sequential advance of wedge faced roof support members, again assisted by the waterjet action from the central cutting arms. The machine is designed to overcome major disadvantages of existing room and pillar mining machines in regard to a reduction in respirable dust, the creation of an immediate roof support, and an increase in product size, with concomitant reduction in cleaning costs.

Summers, D.A.

1990-06-01

42

Modern Technologies for Processing Wastes from Machining Operations  

Microsoft Academic Search

There are currently many methods available for processing and recycling wastes from machining operations [1]. Although some of them consume large amounts of energy and require special equipment or special processing regimes (remelting, comminution, sintering in heating furnaces, hot and cold pressing), significant amounts of the raw material are also lost in the process. For example, the losses incurred in

V. V. Zharikov

2001-01-01

43

INTERIOR VIEW WITH PIPE CASTING MACHINE WITH OPERATOR JOHNNY NIXON ...  

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

INTERIOR VIEW WITH PIPE CASTING MACHINE WITH OPERATOR JOHNNY NIXON SETTING A CORE IN THE CASTING OF A 24' PIPE. - United States Pipe & Foundry Company Plant, Pipe Casting & Testing Area, 2023 St. Louis Avenue at I-20/59, Bessemer, Jefferson County, AL

44

Shaper and Milling Machine Operation, Machine Shop Work 2: 9555.04.  

ERIC Educational Resources Information Center

The course outline has been prepared to assist the student in learning the basic skills and safety for shaper and milling operations. The course presents the various types of machines, work holding devices, cutting tools and feeds and speeds, and instruction designed to enable the student to obtain the manipulative skills and related knowledge

Dade County Public Schools, Miami, FL.

45

Research in Chinese-English Machine Translation. Final Report.  

ERIC Educational Resources Information Center

This report documents results of a two-year effort toward the study and investigation of the design of a prototype system for Chinese-English machine translation in the general area of physics. Previous work in Chinese-English machine translation is reviewed. Grammatical considerations in machine translation are discussed and detailed aspects of

Wang, William S-Y.; And Others

46

Considerations for human-machine interfaces in tele-operations  

NASA Technical Reports Server (NTRS)

Numerous factors impact on the efficiency of tele-operative manipulative work. Generally, these are related to the physical environment of the tele-operator and how he interfaces with robotic control consoles. The capabilities of the operator can be influenced by considerations such as temperature, eye strain, body fatigue, and boredom created by repetitive work tasks. In addition, the successful combination of man and machine will, in part, be determined by the configuration of the visual and physical interfaces available to the teleoperator. The design and operation of system components such as full-scale and mini-master manipulator controllers, servo joysticks, and video monitors will have a direct impact on operational efficiency. As a result, the local environment and the interaction of the operator with the robotic control console have a substantial effect on mission productivity.

Newport, Curt

1991-01-01

47

49 CFR 214.355 - Training and qualification in on-track safety for operators of roadway maintenance machines.  

Code of Federal Regulations, 2013 CFR

...safety for operators of roadway maintenance machines. 214.355 Section 214.355 Transportation...safety for operators of roadway maintenance machines. (a) The training and qualification...workers who operate roadway maintenance machines shall include, as a minimum:...

2013-10-01

48

49 CFR 214.355 - Training and qualification in on-track safety for operators of roadway maintenance machines.  

Code of Federal Regulations, 2012 CFR

...safety for operators of roadway maintenance machines. 214.355 Section 214.355 Transportation...safety for operators of roadway maintenance machines. (a) The training and qualification...workers who operate roadway maintenance machines shall include, as a minimum:...

2012-10-01

49

49 CFR 214.355 - Training and qualification in on-track safety for operators of roadway maintenance machines.  

Code of Federal Regulations, 2011 CFR

...safety for operators of roadway maintenance machines. 214.355 Section 214.355 Transportation...safety for operators of roadway maintenance machines. (a) The training and qualification...workers who operate roadway maintenance machines shall include, as a minimum:...

2011-10-01

50

49 CFR 214.355 - Training and qualification in on-track safety for operators of roadway maintenance machines.  

Code of Federal Regulations, 2014 CFR

...safety for operators of roadway maintenance machines. 214.355 Section 214.355 Transportation...safety for operators of roadway maintenance machines. (a) The training and qualification...workers who operate roadway maintenance machines shall include, as a minimum:...

2014-10-01

51

49 CFR 214.355 - Training and qualification in on-track safety for operators of roadway maintenance machines.  

Code of Federal Regulations, 2010 CFR

...safety for operators of roadway maintenance machines. 214.355 Section 214.355 Transportation...safety for operators of roadway maintenance machines. (a) The training and qualification...workers who operate roadway maintenance machines shall include, as a minimum:...

2010-10-01

52

OTEC-1 test operations experience. Final report  

SciTech Connect

During Phase III, the complete integrated system was operated, and information was obtained on the performance of the test article, the performance of the seawater and ammonia systems, the operation of the platform and moor systems, the effects of biofouling countermeasures, and the effects of the OTEC cycle on the environment. After several months spent in completing construction of the test system and checking out and repairing the various systems, 4 months of test operations were conducted before funding constraints caused the discontinuation of the test program. Plans were made for long-term storage and/or disposition of the test facility. The OEC test platform is currently located at Pearl Harbor, in the US Navy Inactive Reserve Fleet anchorage. The CWP was placed in underwater storage adjacent to the moor, awaiting a decision on final disposition. In October 1982, the CWP was recovered and custody given to the State of Hawaii. Although the test period lasted only about 4 months, deployment and at-sea operation of a large-scale OTEC plant was demonstrated, and information was obtained towards satisfying each of the objectives of the OTEC-1 project. This document summarizes the OTEC-1 test operations experience, discusses technical lessons learned, and makes recommendations for future OTEC plants.

Hoshide, R.K.; Klein, A.; Polino, D.L.; Poucher, F.W.

1983-07-15

53

Operating limits on commutator dc machines used as electromechanical capacitors  

SciTech Connect

This paper presents data gathered in testing 28 rebuilt motors and discusses the impact of possible variation of characteristics among the machines of the operation of the facility. It also discusses commutation limits and their relationship to the economics and reliability of the system. When installed, the system will consist of 30 motors and will have a rating of 50 kA, 1.68 kV corresponding to 84 MVA at a peak power of 42 MW. The cost of this supply will be near $6/kVA which continues to compare favorably with the present $30/kVA cost of alternators.

Thullen, P.

1981-01-01

54

Fusing human and machine skills for remote robotic operations  

NASA Technical Reports Server (NTRS)

The question of how computer assists can improve teleoperator trajectory tracking during both free and force-constrained motions is addressed. Computer graphics techniques which enable the human operator to both visualize and predict detailed 3D trajectories in real-time are reported. Man-machine interactive control procedures for better management of manipulator contact forces and positioning are also described. It is found that collectively, these novel advanced teleoperations techniques both enhance system performance and significantly reduce control problems long associated with teleoperations under time delay. Ongoing robotic simulations of the 1984 space shuttle Solar Maximum EVA Repair Mission are briefly described.

Schenker, Paul S.; Kim, Won S.; Venema, Steven C.; Bejczy, Antal K.

1991-01-01

55

MACHINE PROTECTION SYSTEM FOR CONCURRENT OPERATION OF RHIC AND BLIP.  

SciTech Connect

The Brookhaven 200MeV linac is a multipurpose machine used to inject low intensity polarized protons for RHIC (Relativistic Heavy Ion Collider), as well as to inject high intensity protons to BLIP (Brookhaven Linac Isotope Producer), a medical isotope production facility. If high intensity protons were injected to RHIC by mistake, administrative radiation limits could be exceeded or sensitive electronics could be damaged. In the past, the changeover from polarized proton to high intensity proton operation has been a lengthy process, thereby never allowing the two programs to run simultaneously. To remedy this situation and allow concurrent operation of RHIC and BLIP, an active interlock system has been designed to monitor current levels in the AGS using two current transformers with fail safe circuitry and associated electronics to inhibit beam to RHIC if high intensity currents are detected.

WILINSKI, M.; BELLAVIA, S.; GLENN, J.W.; MAUSNER, L.F.; UNGER, K.L.

2005-05-16

56

Wire-cut electrical discharge machinability of ceramics. Final report  

SciTech Connect

The wire-cut electrical discharge machinability of four ceramics was evaluated. Titanium diboride and silicon carbide workpieces were successfully cut in the monolithic state. Boron carbide could only be cut when a metallic sandwich structure was placed around the workpiece. Silicon nitride could not be successfully cut. Mechanisms of material removal as well as a minimum level of workpiece electrical conductance necessary for EDM are proposed. Characterization of the surface damage resulting from electrical-discharge machining is presented. Recast, partially melted, and heat-affected zones are identified. The effects of parametric processing variations on surface integrity are discussed. Flexure strength and residual stress data are compared for EDM cut and diamond-ground surfaces in titanium diboride. Certain limitations are proposed for the EDM fabrication of ceramic components where surface defects are strength limiting.

Ricci, W.S.; Skeele, H.A.; Blumenthal, W.R.

1987-09-01

57

Trial-Less Machining Using Virtual Machining Simulator for Ball End Mill Operation  

NASA Astrophysics Data System (ADS)

A virtual machining simulator (VMSim) for the flat end mill has already been developed, hence the VMSim for a ball end mill is developed in this research. This system consists of a geometric simulator and a physical simulator to evaluate the machining process. A direct calculation method of machining error copy points is newly proposed to represent the machining errors due to tool deflection in the geometric simulation, and the cutting force and the machining error prediction models for the ball end mill are also introduced in the physical simulation in this research. Furthermore, a basic modification of tool paths in order to reduce the machining errors is introduced. In case studies, the modification of tool paths is carried out and the feasibility of trial-less machining is discussed.

Narita, Hirohisa; Chen, Lian-Yi; Fujimoto, Hideo; Shirase, Keiichi; Arai, Eiji

58

29 CFR 570.55 - Occupations involved in the operation of power-driven woodworking machines (Order 5).  

Code of Federal Regulations, 2010 CFR

...feeding material into such machines, and helping the operator to feed material into such machines but not including the placing...adjusting, repairing, oiling, or cleaning power-driven woodworking machines. (3) The occupations...

2010-07-01

59

29 CFR 570.55 - Occupations involved in the operation of power-driven woodworking machines (Order 5).  

Code of Federal Regulations, 2011 CFR

...feeding material into such machines, and helping the operator to feed material into such machines but not including the placing...adjusting, repairing, oiling, or cleaning power-driven woodworking machines. (3) The occupations...

2011-07-01

60

29 CFR 570.55 - Occupations involved in the operation of power-driven woodworking machines (Order 5).  

Code of Federal Regulations, 2013 CFR

...feeding material into such machines, and helping the operator to feed material into such machines but not including the placing...adjusting, repairing, oiling, or cleaning power-driven woodworking machines. (3) The occupations...

2013-07-01

61

29 CFR 570.55 - Occupations involved in the operation of power-driven woodworking machines (Order 5).  

Code of Federal Regulations, 2012 CFR

...feeding material into such machines, and helping the operator to feed material into such machines but not including the placing...adjusting, repairing, oiling, or cleaning power-driven woodworking machines. (3) The occupations...

2012-07-01

62

29 CFR 570.55 - Occupations involved in the operation of power-driven woodworking machines (Order 5).  

Code of Federal Regulations, 2014 CFR

...feeding material into such machines, and helping the operator to feed material into such machines but not including the placing...adjusting, repairing, oiling, or cleaning power-driven woodworking machines. (3) The occupations...

2014-07-01

63

GA-based synthesis approach for machining scheme selection and operation sequencing optimization for prismatic parts  

Microsoft Academic Search

To obtain global and near-global optimal process plans based on the combinations of different machining schemes selected from\\u000a each feature, a genetic algorithm-based synthesis approach for machining scheme selection and operation sequencing optimization\\u000a is proposed. The memberships derived from the fuzzy logic neural network (FL-NN), which contains the membership function of\\u000a each machining operation to batch size, are presented to

Guang-ru Hua; Xiong-hui Zhou; Xue-yu Ruan

2007-01-01

64

Landers, Ulsoy, and Furness 1 Process Monitoring and Control of Machining Operations  

E-print Network

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 #12;Landers, Ulsoy, and Furness 2 1 INTRODUCTION Machining operations (e.g., drilling, millingLanders, Ulsoy, and Furness 1 Process Monitoring and Control of Machining Operations Robert G) are shape transformation processes where metal is removed from a stock of material to produce a part

Landers, Robert G.

65

Alternative Models of Service, Centralized Machine Operations. Phase II Report. Volume II.  

ERIC Educational Resources Information Center

A study was conducted to determine if the centralization of playback machine operations for the national free library program would be feasible, economical, and desirable. An alternative model of playback machine services was constructed and compared with existing network operations considering both cost and service. The alternative model was

Technology Management Corp., Alexandria, VA.

66

Computer Programmed Milling Machine Operations. High-Technology Training Module.  

ERIC Educational Resources Information Center

This learning module for a high school metals and manufacturing course is designed to introduce the concept of computer-assisted machining (CAM). Through it, students learn how to set up and put data into the controller to machine a part. They also become familiar with computer-aided manufacturing and learn the advantages of computer numerical

Leonard, Dennis

67

Nature of Soviet operational art. Final report  

SciTech Connect

Soviet operational art today provides a framework for, studying, understanding, preparing for, and conducting war. Together with strategy and tactics, it makes the study of war an academic discipline requiring intense research and scholarship on the part of those who write about and who would have to conduct war. As such, operational art performs distinct tasks associated with the conduct of war.

Glantz, D.M.

1985-01-01

68

Preliminary design of atlas pulsed power machine. Final report  

SciTech Connect

During the contract period from March 95 to March 96 I participated in the preliminary design of the Atlas pulsed power machine. As part of this task I performed of the order of 1000 circuit simulations for many different bank configurations, opening switches, and loads, and about 100 electrostatic field calculations. Results of the calculations were provided at regular Atlas design meetings or in the form of memorandums. I have almost completed the development of a 2D disk transmission line code to more accurately calculate asymmetric transient current and voltage caused by azimuthal variations, including switch timing jitter and local arc faults. This code is attached as a subroutine to the circuit simulation program. The purpose for most of the simulations was to provide information on bank damping requirements and load energy ranges for the different circuit configurations. A minimum transmission line insulation depth was determined from calculating the maximum expected dynamic load back voltage (I{times}{sup dL}/{sub dt}). Other simulations included fault effects, transmission line heating effects (including diffusion, melting, vaporization, ionization), and transmission line transients under various conditions. The line fault simulations using a lumped constant approximation to the 2D disk line provided useful information but even with about 600 elements, it has an upper limit on mode frequencies and tends to exaggerate some modes. Electrostatic (2D) field calculations were used to estimate fields of the transmission lines, insulators, and rail gap switches. Design of conductor surface contours to minimize the field near an insulator stack was one result of these calculations. Effects of biasing and insulator modifications of the rail gap switch was determined.

Gribble, R.F.

1996-04-03

69

Control system for, and a method of, heating an operator station of a work machine  

DOEpatents

There are situations in which an operator remains in an operator station of a work machine when an engine of the work machine is inactive. The present invention includes a control system for, and a method of, heating the operator station when the engine is inactive. A heating system of the work machine includes an electrically-powered coolant pump, a power source, and at least one piece of warmed machinery. An operator heat controller is moveable between a first and a second position, and is operable to connect the electrically-powered coolant pump to the power source when the engine is inactive and the operator heat controller is in the first position. Thus, by deactivating the engine and then moving the operator heat controller to the first position, the operator may supply electrical energy to the electrically-powered coolant pump, which is operably coupled to heat the operator station.

Baker, Thomas M.; Hoff, Brian D.; Akasam, Sivaprasad

2005-04-05

70

Adaption of Machine Fluid Analysis for Manufacturing - Final Report  

SciTech Connect

Pacific Northwest National Laboratory (PNNL: Operated by Battelle Memorial Institute for the Department of Energy) is working with the Department of Energy (DOE) to develop technology for the US mining industry. Filtration and lubricant suppliers to the pulp and paper industry had noted the recent accomplishments by PNNL and its industrial partners in the DOE OIT Mining Industry of the Future Program, and asked for assistance in adapting this DOE-funded technology to the pulp and paper industry.

Pardini, Allan F.

2005-08-16

71

Present Situation and Future Trends in Modelling of Machining Operations Progress Report of the CIRP Working Group Modelling of Machining Operations  

Microsoft Academic Search

In 1995 CIRP STC Cutting started a working group Modelling of Machining Operations with the aim of stimulating the development of models capable of predicting quantitatively the performance of metal cutting operations which will be better adapted to the needs of the metal cutting industry in the future. This paper has the character of a progress report. It presents the

C. A. van Luttervelt; T. H. C. Childs; I. S. Jawahir; F. Klocke; P. K. Venuvinod; Y. Altintas; E. Armarego; D. Dornfeld; I. Grabec; J. Leopold; B. Lindstrom; D. Lucca; T. Obikawa; Shirakashi; H. Sato

1998-01-01

72

Method and system for controlling a synchronous machine over full operating range  

DOEpatents

System and method for controlling a synchronous machine are provided. The method allows for calculating a stator voltage index. The method further allows for relating the magnitude of the stator voltage index against a threshold voltage value. An offset signal is generated based on the results of the relating step. A respective state of operation of the machine is determined. The offset signal is processed based on the respective state of the machine.

Walters, James E. (Carmel, IN); Gunawan, Fani S. (Westfield, IN); Xue, Yanhong (Westfield, IN)

2002-01-01

73

Electromagnetic power absorption and temperature changes due to brain machine interface operation.  

PubMed

To fully understand neural function, chronic neural recordings must be made simultaneously from 10s or 100s of neurons. To accomplish this goal, several groups are developing brain machine interfaces. For these devices to be viable for chronic human use, it is likely that they will need to be operated and powered externally via a radiofrequency (RF) source. However, RF exposure can result in tissue heating and is regulated by the FDA/FCC. This paper provides an initial estimate of the amount of tissue heating and specific absorption rate (SAR) associated with the operation of a brain-machine interface (BMI). The operation of a brain machine interface was evaluated in an 18-tissue anatomically detailed human head mesh using simulations of electromagnetics and bio-heat phenomena. The simulations were conducted with a single chip, as well as with eight chips, placed on the surface of the human brain and each powered at four frequencies (13.6 MHz, 1.0 GHz, 2.4 GHz, and 5.8 GHz). The simulated chips consist of a wire antenna on a silicon chip covered by a Teflon dura patch. SAR values were calculated using the finite-difference time-domain method and used to predict peak temperature changes caused by electromagnetic absorption in the head using two-dimensional bio-heat equation. Results due to SAR alone show increased heating at higher frequencies, with a peak temperature change at 5.8 GHz of approximately 0.018 degrees C in the single-chip configuration and 0.06 degrees C in the eight-chip configuration with 10 mW of power absorption (in the human head) per chip. In addition, temperature elevations due to power dissipation in the chip(s) were studied. Results show that for the neural tissue, maximum temperature rises of 3.34 degrees C in the single-chip configuration and 7.72 degrees C in the eight-chip configuration were observed for 10 mW dissipation in each chip. Finally, the maximum power dissipation allowable in each chip before a 1.0 degrees C temperature increase (most stringent standards as denoted in the FDA guidelines) is exceeded in the head was simulated and found to be 2.92 mW in the single-chip configuration and 1.25 mW in the eight-chip configuration. As thermal heating due to SAR was insignificant, this study suggests that wireless electromagnetics, i.e., RF may be a viable option for powering, and communicating with brain machine interfaces for clinical applications. PMID:17334681

Ibrahim, Tamer S; Abraham, Doney; Rennaker, Robert L

2007-05-01

74

Practical design and operating characteristic analysis of a 10 kW HTS DC induction heating machine  

NASA Astrophysics Data System (ADS)

Conventional induction heaters have been in operation in metal and related industries with poor energy efficiencies of only 50-60%. Also, the efficiency of atmosphere furnace, one of the various heating facilities for metal billets, is about 20%. Hence, a high temperature superconducting (HTS) DC induction heating machine to heat a rotating metal billet under uniform magnetic field generated by the 2G HTS magnet with about 80-90% of the system energy efficiency has been researched in this paper. We presented practical design specification, operational characteristics, and temperature distribution on a 10 kW class HTS DC induction heating machine which had been built and tested. The saturated temperature of an HTS no-insulated(NI) coil in the cryostat fabricated with 100 A of the operating current reached 45.9 K and the magnetic field at the centre point between two iron cores measured 0.2 T. The rotating machine for 4.1 kg of the aluminum billet was tested on 1760 rpm of the rated rotating speed. The final temperature of the aluminum billet has risen up to 500 C for 480 s. The research outcomes are expected to be useful for the design of a large scale HTS DC induction heating machine in industries.

Choi, Jongho; Kim, Kwangmin; Park, Minwon; Yu, In-Keun; Kim, Seokho; Sim, Kideok; Kim, Hae-jong

2014-09-01

75

Quantification of uncertainty in machining operations for on-machine acceptance.  

SciTech Connect

Manufactured parts are designed with acceptance tolerances, i.e. deviations from ideal design conditions, due to unavoidable errors in the manufacturing process. It is necessary to measure and evaluate the manufactured part, compared to the nominal design, to determine whether the part meets design specifications. The scope of this research project is dimensional acceptance of machined parts; specifically, parts machined using numerically controlled (NC, or also CNC for Computer Numerically Controlled) machines. In the design/build/accept cycle, the designer will specify both a nominal value, and an acceptable tolerance. As part of the typical design/build/accept business practice, it is required to verify that the part did meet acceptable values prior to acceptance. Manufacturing cost must include not only raw materials and added labor, but also the cost of ensuring conformance to specifications. Ensuring conformance is a substantial portion of the cost of manufacturing. In this project, the costs of measurements were approximately 50% of the cost of the machined part. In production, cost of measurement would be smaller, but still a substantial proportion of manufacturing cost. The results of this research project will point to a science-based approach to reducing the cost of ensuring conformance to specifications. The approach that we take is to determine, a priori, how well a CNC machine can manufacture a particular geometry from stock. Based on the knowledge of the manufacturing process, we are then able to decide features which need further measurements from features which can be accepted 'as is' from the CNC. By calibration of the machine tool, and establishing a machining accuracy ratio, we can validate the ability of CNC to fabricate to a particular level of tolerance. This will eliminate the costs of checking for conformance for relatively large tolerances.

Claudet, Andre A.; Tran, Hy D.; Su, Jiann-Chemg

2008-09-01

76

Pseudo constant power times speed operation in the field weakening region of IPM synchronous machines  

Microsoft Academic Search

Interior permanent magnet (IPM) synchronous machines have been known to have good field weakening characteristics and extended operating speed range over the surface mounted PM designs. Due to the constraints of some applications and the associated designs, there is a class of IPM synchronous machines which has characteristics current, XPM\\/Ld, less than its peak current rating. Previous works have revealed

Z. X. Fu

2003-01-01

77

Bidirectional Flow Shop Scheduling with Multi-Machine Capacity and Critical Operation Sequencing  

Microsoft Academic Search

We study a special bidirectional flow shop problem with multi-machine capacity and sequencing constraints on critical operations. A formulation is proposed in continuous time domain and compared with a mixed integer programming (MIP) formulation in discrete time domain. Of particular interest to us is the formulation of the machine utilization function -both in continuous time and in discrete time domain.

ZhengYi John ZHAO; Thin-Yin Leong; Shuzhi Sam Ge; Hoong Chuin Lau

2007-01-01

78

Cold cleaning machine operations new source performnce standards. Background information\\/basis and purpose document  

Microsoft Academic Search

The Administrator has identified organic solvent degreasing, of which cold cleaning machine operations are a subset, as a source of volatile organic compound (VOC) emissions that causes or contributes to air pollution that may reasonably be anticipated to endanger public health or welfare. The intent of the proposed standards is to require new, modified, and reconstructured immersion cold cleaning machines

Almodovar

1994-01-01

79

Review of position-sensorless operation of brushless permanent-magnet machines  

Microsoft Academic Search

The operation of a brushless permanent-magnet machine requires rotor-position information, which is used to control the frequency and phase angle of the machine's winding currents. Sensorless techniques for estimating rotor position from measurements of voltage and current have been the subject of intensive research. This paper reviews the state of the art in these sensorless techniques, which are broadly classified

Paul P. Acarnley; John F. Watson

2006-01-01

80

Highway operation and plant damage. Final report  

SciTech Connect

A five year study investigated the relationship between highway operation and plant damage in the Tahoe Basin and adjacent highways. These studies include field surveys, greenhouse studies, soil salt application trials, foliar salt application trials, an Armillaria root rot inoculation study, a seasonal fluctuation of salt study, the effect of temperature on salt uptake and a bark absorption of salt study. Highway deicing salt is a cause of damage on conifers, usually limited to 30 feet from the pavement edge. Drainage patterns and salt carried by aerosols may extend damage farther from the pavement. Of the four principal conifers in the study area, Jeffrey pine and lodgepole pine appeared the most tolerant of salt and incense cedar was the most susceptible.

Leiser, A.T.; Palaniyandi, R.; Paul, J.L.; Raabe, R.

1980-04-01

81

Occupational 50 Hz magnetic field exposure measurements among female sewing machine operators in Hungary.  

PubMed

Occupational magnetic field (MF) exposure is less thoroughly characterized in occupations typically held by women. Our objective was to characterize occupational 50 Hz MF personal exposure (PE) among female sewing machine operators. We measured the full shift PE of 51 seamstresses, who worked in two shifts (6-14 and 14-22 h) according to their normal work routine. Measurements were conducted using EMDEX PAL meters at chest level. The average duration of the measurement periods was 449 min (range 420-470). The average arithmetic mean exposure for all women was 0.76 microT (range 0.06-4.27). The average of maximum values was 4.30 microT (range 0.55-14.80). Women working with older sewing machines experienced higher exposure than women working on newer sewing machines. For women (n = 10) who operated sewing machines produced in 1990 or earlier, the average arithmetic mean exposure was 2.09 microT, and for women (n = 41) who operated sewing machines produced after 1990, the average arithmetic mean was 0.43 microT. We conclude that women working as sewing machine operators experience higher than average occupational MF exposure compared to other working women. Most important determinant of the women's personal MF exposure was the age of the sewing machine the women operated. PMID:16622866

Szab, J; Mezei, K; Thurczy, G; Mezei, G

2006-09-01

82

Time cycle calculation procedure for the special crew during the mining mobile machine complex operation  

NASA Astrophysics Data System (ADS)

The relevance of the research is specified by the necessity to optimize the delft mobile tunneling equipment operation. Target of the research is tunneling time cycle justification for the special crew during the mining mobile machine complex operation. Methods of the research included the consideration of operation organization schemes in the drifting face and effective use of the mobile equipment during mine exploratory working operations. Time cycle calculation procedures for major processes have been considered. This has been done for the special crew during the mobile machine complex operations for several working faces and various organization schemes.

Shmurygin, V.; Lukyanov, V.; Maslovsky, A.

2015-02-01

83

Methods, systems and apparatus for controlling operation of two alternating current (AC) machines  

DOEpatents

A system is provided for controlling two alternating current (AC) machines via a five-phase PWM inverter module. The system comprises a first control loop, a second control loop, and a current command adjustment module. The current command adjustment module operates in conjunction with the first control loop and the second control loop to continuously adjust current command signals that control the first AC machine and the second AC machine such that they share the input voltage available to them without compromising the target mechanical output power of either machine. This way, even when the phase voltage available to either one of the machines decreases, that machine outputs its target mechanical output power.

Gallegos-Lopez, Gabriel (Torrance, CA); Nagashima, James M. (Cerritos, CA); Perisic, Milun (Torrance, CA); Hiti, Silva (Redondo Beach, CA)

2012-06-05

84

ENGINEERING DRIVEN CAUSE-EFFECT MODELING AND STATISTICAL ANALYSIS FOR MULTI-OPERATIONAL MACHINING  

E-print Network

ENGINEERING DRIVEN CAUSE-EFFECT MODELING AND STATISTICAL ANALYSIS FOR MULTI-OPERATIONAL MACHINING for product quality improvement is a critical issue in both design and manufacturing, especially, without interpretation with domain knowledge, the statistical methods provide little diagnostic capability

Li, Jing

85

Musculoskeletal disorders of the neck and shoulders in female sewing machine operators: prevalence, incidence, and prognosis  

Microsoft Academic Search

OBJECTIVESTo assess the occurrence and persistence of two restrictively defined neck-shoulder disorders among sewing machine operators. To assess factors associated with the development of neck-shoulder disorder and prognostic factors for remaining a case, when disorders were already present.METHODSIn an initial group of 243 sewing machine operators, 178 were followed up for 2 years. At baseline and at 1 and 2

Anette Kaergaard; Johan H Andersen

2000-01-01

86

Science to Understand the Oceans: building a diving machine or Remotely OperatedVehicle  

E-print Network

Science to Understand the Oceans: building a diving machine or Remotely OperatedVehicle (ROV. But for many marine scientists remotely operated vehicles or ROV's are their eyes into the deep. Your mission operated vehicle (ROV), which you'll use to take equipment to the bottom of your bottle. 3. With another

Pedersen, Tom

87

Scheduling Load Operations on VLIW Machines Charles R. Hardnett, Krishna V. Palem,  

E-print Network

Scheduling Load Operations on VLIW Machines Charles R. Hardnett, Krishna V. Palem, Rodric M. Rabbah to address the scheduling of load operations to mask the latency of delinquent loads; which are associated). CSS is designed to be sensitive to the varying memory latencies of load operations, and compensate

Rabbah, Rodric

88

Basic Operation of Cryocoolers and Related Thermal Machines  

NASA Astrophysics Data System (ADS)

This paper deals with the basics of cryocoolers and related thermodynamic systems. The treatment is based on the first and second law of thermodynamics for inhomogeneous, open systems using enthalpy flow, entropy flow, and entropy production. Various types of machines, which use an oscillating gas flow, are discussed such as: Stirling refrigerators, GM coolers, pulse-tube refrigerators, and thermoacoustic coolers and engines. Furthermore the paper deals with Joule-Thomson and dilution refrigerators which use a constant flow of the working medium.

de Waele, A. T. A. M.

2011-09-01

89

Mean Machines.  

ERIC Educational Resources Information Center

Suggests scales as alternative representations of numerical concepts and operations that can be used as arithmetic-mean machines, adding machines, multiplication machines, and geometric-mean machines. (ASK)

Flores, Alfinio

1998-01-01

90

Numerical Ergonomics Analysis in Operation Environment of CNC Machine  

NASA Astrophysics Data System (ADS)

The performance of operator will be affected by different operation environments [1]. Moreover, poor operation environment may cause health problems of the operator [2]. Physical and psychological considerations are two main factors that will affect the performance of operator under different conditions of operation environment. In this paper, applying scientific and systematic methods find out the pivot elements in the field of physical and psychological factors. There are five main factors including light, temperature, noise, air flow and space that are analyzed. A numerical ergonomics model has been built up regarding the analysis results which can support to advance the design of operation environment. Moreover, the output of numerical ergonomic model can provide the safe, comfortable, more productive conditions for the operator.

Wong, S. F.; Yang, Z. X.

2010-05-01

91

76 FR 81518 - Notice of Issuance of Final Determination Concerning Laser-Based Multi-Function Office Machines  

Federal Register 2010, 2011, 2012, 2013, 2014

...Issuance of Final Determination Concerning Laser-Based Multi-Function Office Machines...determination concerning the country of origin of laser-based multi-function office machines...together convey the essential character of the laser-based multi-function office...

2011-12-28

92

Design of a Versatile, Teleoperable, Towable Lifting Machine with Robotic Capabilities for Use in Nasa's Lunar Base Operations  

NASA Technical Reports Server (NTRS)

The lifting machine will assist in lifting cargo off of landers sent to the Moon and in the construction of a lunar base. Three possible designs were considered for the overall configuration of the lifting machine: the variable angle crane, the tower crane, and the gantry crane. Alternate designs were developed for the major components of the lifting machine. A teleoperable, variable angle crane was chosen as its final design. The design consists of a telescoping boom mounted to a chassis that is supported by two conical wheels for towing and four outriggers for stability. Attached to the end of the boom is a seven degree of freedom robot arm for light, dexterous, lifting operations. A cable and hook suspends from the end of the boom for heavy, gross, lifting operations. Approximate structural sizes were determined for the lifter and its components. However, further analysis is needed to determine the optimum design dimensions. The design team also constructed a model of the design which demonstrates its features and operating principals.

Harris, Elizabeth; Ogle, James; Schoppe, Dean

1989-01-01

93

Development of a mass transfer machine for gas/liquid operations in the absence of gravity  

NASA Astrophysics Data System (ADS)

A mass transfer machine for gas/liquid operations under low gravity was developed. It consists of two flat rotors, the inner surfaces being ribbed in radial direction. Due to the rotation of the machine, the liquid introduced in the center, is repeatedly dispersed on the edges of the ribs, which are arranged in series. Transport, dispersion and separation of liquid and gas are effected by centrifugal forces. The fluid dynamics were investigated for countercurrent, transition and cocurrent flow. The mass transfer investigations were carried out by desorption of CO2 from water into air. The machine is well suited for air cleaning in spacecraft or submarine labs.

Brauer, H.; Gaebelein, W.

1984-07-01

94

Washing Machines--Components & Operations; Appliance Repair 2: #9025.03.  

ERIC Educational Resources Information Center

Designed to familiarize the student with the components and operations of automatic washing machines, this course outline offers instruction on the principles of washing and their relation to the automatic washer, the functions and operations of washer components, identification of various component malfunctions, washer installation, and the

Dade County Public Schools, Miami, FL.

95

Universal Tool Grinder Operator Instructor's Guide. Part of Single-Tool Skills Program Machine Industries Occupations.  

ERIC Educational Resources Information Center

The document is an instructor's guide for a course on universal tool grinder operation. The course is designed to train people in making complicated machine setups and precision in the grinding operations and, although intended primarily for adult learners, it can be adapted for high school use. The guide is divided into three parts: (1) the

New York State Education Dept., Albany. Div. of Curriculum Development.

96

Experimental studies on bubble pump operated diffusion absorption machine based on light hydrocarbons for solar cooling  

Microsoft Academic Search

An experimental investigation of an air-cooled diffusion absorption machine operating with a binary light hydrocarbon mixture (C4H10\\/C9H20) as working fluids and helium as pressure equalizing inert gas is presented in this paper. The machine, made of copper an available and very good heat conducting metal, is intended to be solar powered heat from flat plate or common evacuated tube collectors.

N. Ben Ezzine; R. Garma; M. Bourouis; A. Bellagi

2010-01-01

97

Shoulder muscle load and muscle fatigue among industrial sewing-machine operators  

Microsoft Academic Search

SummaryPhysiological responses to physical work were assessed for 29 female industrial sewing-machine operators during an 8-h working day under ordinary working conditions. During sewing-machine work, the average (left and right) static load in the trapezius muscle was 9% of the maximal electromyogram (EMG) amplitude (% EMGmax), while the average mean load was 15% EMGmax, and the average peak load was

Bente R. Jensen; Bente Schibye; Karen Sgaard; Erik B. Simonsen; Gisela Sjgaard

1993-01-01

98

Agricultural Safety. FMO: Fundamentals of Machine Operation. Second Edition.  

ERIC Educational Resources Information Center

This manual is intended to provide students with basic information on the safe operation of farm machinery. The following topics are covered in the individual chapters: safe farm machinery operation (the importance of safety, the role of communication in safety, and types of farm accidents); human factors (human limitations and capabilities;

John Deere Co., Moline, IL.

99

Machine-Vision Aids for Improved Flight Operations  

NASA Technical Reports Server (NTRS)

The development of machine vision based pilot aids to help reduce night approach and landing accidents is explored. The techniques developed are motivated by the desire to use the available information sources for navigation such as the airport lighting layout, attitude sensors and Global Positioning System to derive more precise aircraft position and orientation information. The fact that airport lighting geometry is known and that images of airport lighting can be acquired by the camera, has lead to the synthesis of machine vision based algorithms for runway relative aircraft position and orientation estimation. The main contribution of this research is the synthesis of seven navigation algorithms based on two broad families of solutions. The first family of solution methods consists of techniques that reconstruct the airport lighting layout from the camera image and then estimate the aircraft position components by comparing the reconstructed lighting layout geometry with the known model of the airport lighting layout geometry. The second family of methods comprises techniques that synthesize the image of the airport lighting layout using a camera model and estimate the aircraft position and orientation by comparing this image with the actual image of the airport lighting acquired by the camera. Algorithms 1 through 4 belong to the first family of solutions while Algorithms 5 through 7 belong to the second family of solutions. Algorithms 1 and 2 are parameter optimization methods, Algorithms 3 and 4 are feature correspondence methods and Algorithms 5 through 7 are Kalman filter centered algorithms. Results of computer simulation are presented to demonstrate the performance of all the seven algorithms developed.

Menon, P. K.; Chatterji, Gano B.

1996-01-01

100

Musculoskeletal disorders of the neck and upper limb among sewing machine operators: a clinical investigation.  

PubMed

One hundred and seven women participated in a clinical study of an age-stratified random sample of sewing machine operators compared to a group of auxiliary nurses and home helpers. Four groups, according to years of being a sewing machine operator, consisted of: (controls) 25; (0-7 years) 21; (8-15 years) 25; and (more than 15 years) 36. The numbers of the main clinical diagnoses in the four groups were: cervicobrachial fibromyalgia (myofascial pain syndrome) 2, 4, 11, 24; cervical syndrome 0, 1, 3, 10; and rotator cuff syndrome 1, 1, 6, 11. The observed exposure-response relationship between clinical outcomes and years as a sewing machine operator was maintained when adjusting for current exposure to musculoskeletal strain and other potential confounders. Muscle palpation proved to be a reproducible examination with kappa values around 0.70. PMID:8311099

Andersen, J H; Gaardboe, O

1993-12-01

101

Method and machine for high strength undiffused brushless operation  

DOEpatents

A brushless electric machine (30) having a stator (31) and a rotor (32) and a main air gap (34), the rotor (32) having pairs of rotor pole portions (22b, 22c, 32f, 32l) disposed at least partly around the axis of rotation (32p) and facing the main air gap (24b, 24c, 34), at least one stationary winding (20b, 20c, 33b) separated from the rotor (22b, 22c, 32) by a secondary air gap (23b, 23c, 35) so as to induce a rotor-side flux in the rotor (22b, 22c, 32) which controls a resultant flux in the main air gap (24b, 24c, 34). PM material (27b, 27c) is disposed in spaces between the rotor pole portions (22b, 22c, 32f, 32l) to inhibit the rotor-side flux from leaking from said pole portions (22b, 22c, 32f, 32l) prior to reaching the main air gap (24b, 24c, 34). By selecting the direction of current in the stationary winding (20b, 20c, 33b) both flux enhancement and flux weakening are provided for the main air gap (24b, 24c, 34). The stationary windings (31a, 33b) which are used for both primary and secondary excitation allow for easier adaptation to cooling systems as described. A method of non-diffused flux enhancement and flux weakening is also disclosed.

Hsu, John S.

2003-06-03

102

Design and Analysis of an Interior Permanent Magnet (IPM) Machine With Very Wide Constant Power Operation Range  

Microsoft Academic Search

This paper evaluates the design of a new segmented interior permanent magnet (SIPM) machine with very wide constant power operation range. The machine uses segmentation of the rotor magnets with the help of iron bridges between magnet segments. This provides for an inherent flux-weakening capability to the interior permanent magnet (IPM) machine. A very wide flux-weakening range has been achieved

Rukmi Dutta; M. F. Rahman

2008-01-01

103

Simple Machines  

NSDL National Science Digital Library

This activity is designed to learn about simple machines and to have fun doing so! First, use this website to learn backround information on the basics of simple machines. Try the quiz! Simple Machines Learning Site Next, play a game that tests your ability to identify simple machines.... Edheads: Simple Machines Finally, view this video to see how students your age used applied simple machines to do a cool task... Building Simple Machines: A Glass of Milk, Please ...

AWOL

2006-11-15

104

The reduction methods of operator's radiation dose for portable dental X-ray machines  

PubMed Central

Objectives This study was aimed to investigate the methods to reduce operator's radiation dose when taking intraoral radiographs with portable dental X-ray machines. Materials and Methods Two kinds of portable dental X-ray machines (DX3000, Dexcowin and Rextar, Posdion) were used. Operator's radiation dose was measured with an 1,800 cc ionization chamber (RadCal Corp.) at the hand level of X-ray tubehead and at the operator's chest and waist levels with and without the backscatter shield. The operator's radiation dose at the hand level was measured with and without lead gloves and with long and short cones. Results The backscatter shield reduced operator's radiation dose at the hand level of X-ray tubehead to 23 - 32%, the lead gloves to 26 - 31%, and long cone to 48 - 52%. And the backscatter shield reduced operator's radiation dose at the operator's chest and waist levels to 0.1 - 37%. Conclusions When portable dental X-ray systems are used, it is recommended to select X-ray machine attached with a backscatter shield and a long cone and to wear the lead gloves. PMID:23429415

Cho, Jeong-Yeon

2012-01-01

105

Task decomposition of cell production assembly operation for man-machine collaboration by HTA  

Microsoft Academic Search

The main aim of this work is to address task decomposition of man-machine collaboration by hierarchical task analysis (HTA) approach. The success of HTA in ergonomics study has inspired this work to implement this method in practical cable assembly operation in cell production system. In the development, both the cable assembly tasks of human worker and robot manipulator are being

Feng Duan; Ye Zhang; Tamio Arai

2008-01-01

106

Reliability of the Demand-Control Questionnaire for sewing machine operators.  

PubMed

The Demand-Control Questionnaire (DCQ), a 20-item scale that measures psychological work demands, job control and workplace social support, has frequently been used to assess occupational stress. The purpose of this study was to determine the test-retest reliability and internal consistency of the DCQ with sewing machine operators. Forty-six sewing machine operators completed the DCQ on two occasions with an 11-week time interval. A repeated measures analysis of variance model and subsequent application of generalizability theory were used to calculate the test-retest reliability of the subjects' ratings on the DCQ. Cronbach's alpha was used to determine the internal consistency of the scale. The test-retest reliability was 0.33 (95% confidence interval = 0.05-0.61), indicating fair reliability. Good internal consistency (Cronbach's alpha = 0.70) was found. The DCQ appears to be a reliable measure for assessing occupational stress in sewing machine operators. Workplaces need to place greater emphasis on the role of occupational stress in the prevention and treatment of musculoskeletal injuries among sewing machine operators. PMID:12441460

Williams, Renee M.; Sundelin, Gunnevi; Schmuck, Mary Lou

2001-01-01

107

Effect of training on the productivity and tenure of sewing machine operators  

Microsoft Academic Search

A significant determinant of the high rate of personnel turnover among a population of female sewing machine operators was inadequate initial training. 208 new trainees received either 1, 2, or 3 days' vestibule training. The longer the training, the lower the turnover rate, but the lower the productivity as well. Both effects were statistically significant, but the effects on productivity

Joel Lefkowitz

1970-01-01

108

Investigations of the operation reliability increase of the alternating current electric machines in diamond extractive industries  

Microsoft Academic Search

At present at concentration plants of diamond extractive industries one of the most important characteristics of the electric drive operation of powerful crusher, grinding machines, heavy transporters, fans are their reliability as well as quantitative estimation of its indexes. The given estimation is carried out based on the information formed either during testing specially organized or during exploiting engines by

V. P. Shevchuk

2002-01-01

109

Effectiveness of liquid crystal admixtures in the lubricating oil for a multi-operational machine  

SciTech Connect

Reliable cyclic operation of modern multioperational, numerically controlled (N/C) machine tools strongly depends not only on the precision manufacturing of kinematic pairs, but also on the conditions of their maintenance and running-in periods. In the machine tool industry, the running-in of the most important newly assembled kinematic units and mechanisms of machines, i.e., spindle head units, gearboxes, ball screw paris, etc., is attained during a 2- to 36-hour period in the plant and subsequent long-term operational running-in of all units on the assembled machine. For the reduction of the running-in duration, low-viscosity oil, sulfurized lubricants and various additives are used. However, the usage of low viscosity oil may cause scoring and increase the wear due to squeezing-out of the oil and contact between mating surfaces. In other cases the low effectiveness of the additives in the running-in process is observed, as well as surface corrosion and the long duration of the run-in process itself. The influence of lubricants and their additives on the running-in process of gearboxes of metal-cutting machine tools is investigated. Theoretical and experimental analysis proved the expediency of adding liquid crystals (fatty acid esters of cholesterol) into the oil. 6 refs., 1 fig., 1 tab.

Vekteris, V.; Murachver, A. [Vilnius Technical Univ. (Lithuania)

1995-10-01

110

Determining reaction abilities of sewing machine operators in joining curved seams  

Microsoft Academic Search

In accordance with his\\/her psycho-physical abilities and degree of skill, regulating system in the operator's brain will match the speed of sewing operations, e.g. actual machine stitching speed, using a simple movement of the foot, to adapt it to his\\/her sensory and motoric reaction abilities. Workpiece in sewing is fed employing three degrees of freedom movement, i.e. using three independent

Dubravko Rogale

2003-01-01

111

Volitional enhancement of firing synchrony and oscillation by neuronal operant conditioning: interaction with neurorehabilitation and brain-machine interface  

PubMed Central

In this review, we focus on neuronal operant conditioning in which increments in neuronal activities are directly rewarded without behaviors. We discuss the potential of this approach to elucidate neuronal plasticity for enhancing specific brain functions and its interaction with the progress in neurorehabilitation and brain-machine interfaces. The key to-be-conditioned activities that this paper emphasizes are synchronous and oscillatory firings of multiple neurons that reflect activities of cell assemblies. First, we introduce certain well-known studies on neuronal operant conditioning in which conditioned enhancements of neuronal firing were reported in animals and humans. These studies demonstrated the feasibility of volitional control over neuronal activity. Second, we refer to the recent studies on operant conditioning of synchrony and oscillation of neuronal activities. In particular, we introduce a recent study showing volitional enhancement of oscillatory activity in monkey motor cortex and our study showing selective enhancement of firing synchrony of neighboring neurons in rat hippocampus. Third, we discuss the reasons for emphasizing firing synchrony and oscillation in neuronal operant conditioning, the main reason being that they reflect the activities of cell assemblies, which have been suggested to be basic neuronal codes representing information in the brain. Finally, we discuss the interaction of neuronal operant conditioning with neurorehabilitation and brain-machine interface (BMI). We argue that synchrony and oscillation of neuronal firing are the key activities required for developing both reliable neurorehabilitation and high-performance BMI. Further, we conclude that research of neuronal operant conditioning, neurorehabilitation, BMI, and system neuroscience will produce findings applicable to these interrelated fields, and neuronal synchrony and oscillation can be a common important bridge among all of them. PMID:24567704

Sakurai, Yoshio; Song, Kichan; Tachibana, Shota; Takahashi, Susumu

2014-01-01

112

On-machine sensors to measure paper mechanical properties. Final report  

SciTech Connect

The measurement of the velocity of ultrasound provides a nondestructive means to characterize the elastic stiffness properties of paper. The objective of this project is to develop sensors capable of measuring the velocity of ultrasound in the thickness and in-plane directions of moving paper webs. On-machine measurements would allow continuous monitoring of product quality as well as provide data for controlling the papermaking process. This final report first reviews the background and various technical approaches explored. Then the preferred configurations and examples of measurements on moving paper webs in the laboratory are presented and discussed. The report concludes with a summary of project results and recommendations for further developments. Transducers mounted in fluid-filled wheels are used to make thickness direction, ZD, ultrasound velocity measurements on paper webs moving in the nip between two such wheels. Comparisons of the arrival times of echo and transmitted pulses with and without the paper web in the nip provide a measure of the transit time and caliper. Bimorph transducers mounted in an aluminum cylinder are used for machine direction (MD) and cross direction (CD) in-plane measurements. These ZD and in-plane sensors are mounted on a web handler in the IPST laboratory.

Hall, M.S.; Brodeur, P.H.; Jackson, T.G.

1993-10-01

113

Mississippi Curriculum Framework for Machine Tool Operation/Machine Shop and Tool and Die Making Technology Cluster (Program CIP: 48.0507--Tool and Die Maker/Technologist) (Program CIP: 48.0503--Machine Shop Assistant). Postsecondary Programs.  

ERIC Educational Resources Information Center

This document, which is intended for use by community and junior colleges throughout Mississippi, contains curriculum frameworks for the course sequences in the machine tool operation/machine tool and tool and die making technology programs cluster. Presented in the introductory section are a framework of courses and programs, description of the

Mississippi Research and Curriculum Unit for Vocational and Technical Education, State College.

114

Shoulder muscle load and muscle fatigue among industrial sewing-machine operators.  

PubMed

Physiological responses to physical work were assessed for 29 female industrial sewing-machine operators during an 8-h working day under ordinary working conditions. During sewing-machine work, the average (left and right) static load in the trapezius muscle was 9% of the maximal electromyogram (EMG) amplitude (% EMGmax), while the average mean load was 15% EMGmax, and the average peak load was 23% EMGmax. The static load level was unrelated to the muscle strength of the sewing-machine operators, which for the group as a whole was within the normal range. The load levels remained unchanged during the working day, while changes in the EMG mean power frequency and zero crossing frequency rate occurred, both indicating the development of muscle fatigue in left and right trapezius muscle during the working day. In line with this, the rating of perceived exertion in the shoulder and neck region increased during the working day. Dividing the group of sewing-machine operators into two groups, those with the highest frequency and those with the lowest frequency of shoulder/neck troubles showed that the former group had significantly lower muscle strength, despite the fact that no differences in the surface EMG during sewing were found between the two groups. It was concluded that industrial sewing-machine work involves a pattern of shoulder muscle activity which induces fatiguing processes in the shoulder and neck regions. Furthermore, since the static shoulder muscle load was independent of muscle strength, factors other than working posture may be of significance for the static shoulder muscle load. PMID:8299620

Jensen, B R; Schibye, B; Sgaard, K; Simonsen, E B; Sjgaard, G

1993-01-01

115

Accurate Performance Models of Parallel Low Level Image Processing Operations Based on a Simple Abstract Machine  

Microsoft Academic Search

Abstract: MachineF.J. Seinstra and D. KoelmaFaculty of ScienceUniversity of AmsterdamThe NetherlandsThis paper presents performance models for accurate prediction of the executiontime of a large set of image processing operations, executed on distributed memoryMIMD-style parallel hardware. The models incorporate a strict separation betweenthe two (essentially unrelated) aspects of parallel execution: (1) sequential computationand (2) inter-process communication. The model parameters are ...

F. Seinstra; D. Koelma

2000-01-01

116

"Machine" consciousness and "artificial" thought: an operational architectonics model guided approach.  

PubMed

Instead of using low-level neurophysiology mimicking and exploratory programming methods commonly used in the machine consciousness field, the hierarchical operational architectonics (OA) framework of brain and mind functioning proposes an alternative conceptual-theoretical framework as a new direction in the area of model-driven machine (robot) consciousness engineering. The unified brain-mind theoretical OA model explicitly captures (though in an informal way) the basic essence of brain functional architecture, which indeed constitutes a theory of consciousness. The OA describes the neurophysiological basis of the phenomenal level of brain organization. In this context the problem of producing man-made "machine" consciousness and "artificial" thought is a matter of duplicating all levels of the operational architectonics hierarchy (with its inherent rules and mechanisms) found in the brain electromagnetic field. We hope that the conceptual-theoretical framework described in this paper will stimulate the interest of mathematicians and/or computer scientists to abstract and formalize principles of hierarchy of brain operations which are the building blocks for phenomenal consciousness and thought. PMID:21130079

Fingelkurts, Andrew A; Fingelkurts, Alexander A; Neves, Carlos F H

2012-01-01

117

Prevalence of persistent neck and upper limb pain in a historical cohort of sewing machine operators.  

PubMed

Four hundred and twenty-four sewing machine operators from a historical cohort of garment industry workers answered questionnaires concerning musculoskeletal symptoms and job exposure. They were compared with 781 women from the general population of the region and an internal control group of 89 women from the garment industry. The risk for persistent neck and shoulder complaints increased with years of being a sewing machine operator: (up to seven years, eight to fifteen years, and more than fifteen years: prevalence proportion ratio 1.8, 3.5 and 4.4 [neck] and 1.5, 4 and 6.8 [shoulder] compared with the controls [n = 781]). The exposure-response relationships remained when adjusted for potential confounders, of which age, current shoulder-neck exposure, and child bearing were the most contributing. The study revealed that work for more than eight years as a sewing machine operator probably has a cumulative deleterious effect on the neck and shoulders. PMID:8311098

Andersen, J H; Gaardboe, O

1993-12-01

118

Health problems among operators of plastic welding machines and exposure to radiofrequency electromagnetic fields.  

PubMed

To study possible medical effects of high radiofrequency radiation (RF), 113 Swedish men and women were studied by means of a structured interview and rating of subjective symptoms. A test session was included in order to examine coordination and muscular function of the hands. A neurological test concerning two-point discrimination (2-PD) was also done. As referents, 23 women, sewing machine operators and assembly workers, were chosen, interviewed and likewise tested. Exposure measurements were taken of the RF fields around the welding machines. The present Swedish ceiling value of 250 W/m2 for the equivalent power density was exceeded in more than 50% of the machines. The highest leakage fields, both for electric and magnetic fields, were found near machines used in factories for ready-made clothing, which gave a high exposure to the hands. Irritative eye symptoms were reported by 23% of the men and 40% of the women. A group of 27 persons was selected for a clinical eye examination and checked by photographs, and nine persons had modest conjunctivitis. A high prevalence of numbness in hands, especially among women, was found. A significantly impaired 2-PD was found in the exposed women as compared to the referent group. The pregnancy outcome for 305 female plastic welders during 1974-1984 did not show any significant differences with the Swedish average concerning malformation or prenatal mortality. PMID:3372031

Kolmodin-Hedman, B; Hansson Mild, K; Hagberg, M; Jnsson, E; Andersson, M C; Eriksson, A

1988-01-01

119

CIRP Conference on Modeling of Machining Operations (CIRP CMMO) Constitutive Modelling of AZ31B-O Magnesium Alloy  

E-print Network

B-O Magnesium Alloy for Cryogenic Machining E. Girauda* , F. Rossib , G. Germaina , J.C. Outeirob disks of AZ31B-O magnesium alloy, using a special designed tool. In order to include the effects of Machining Operations" in the person of the Conference Chair Prof. Luca Settineri Keywords: Magnesium alloy

Paris-Sud XI, Université de

120

Modeling of Eddy-Current Loss of Electrical Machines and Transformers Operated by Pulsewidth-Modulated Inverters  

Microsoft Academic Search

Pulsewidth-modulated (PWM) inverters are used more and more to operate electrical machines and to interface renewable energy systems with the utility grid. However, there are abundant high-frequency harmonics in the output voltage of a PWM inverter, which increase the iron losses and result in derating of the machine or transformer connected to them. Predicting the iron losses caused by the

Ruifang Liu; Chris Chunting Mi; D. W. Gao

2008-01-01

121

Sensor guided control and navigation with intelligent machines. Final technical report  

SciTech Connect

This item constitutes the final report on ''Visionics: An integrated approach to analysis and design of intelligent machines.'' The report discusses dynamical systems approach to problems in robust control of possibly time-varying linear systems, problems in vision and visually guided control, and, finally, applications of these control techniques to intelligent navigation with a mobile platform. Robust design of a controller for a time-varying system essentially deals with the problem of synthesizing a controller that can adapt to sudden changes in the parameters of the plant and can maintain stability. The approach presented is to design a compensator that simultaneously stabilizes each and every possible mode of the plant as the parameters undergo sudden and unexpected changes. Such changes can in fact be detected by a visual sensor and, hence, visually guided control problems are studied as a natural consequence. The problem here is to detect parameters of the plant and maintain st ability in the closed loop using a ccd camera as a sensor. The main result discussed in the report is the role of perspective systems theory that was developed in order to analyze such a detection and control problem. The robust control algorithms and the visually guided control algorithms are applied in the context of a PUMA 560 robot arm control where the goal is to visually locate a moving part on a mobile turntable. Such problems are of paramount importance in manufacturing with a certain lack of structure. Sensor guided control problems are extended to problems in robot navigation using a NOMADIC mobile platform with a ccd and a laser range finder as sensors. The localization and map building problems are studied with the objective of navigation in an unstructured terrain.

Ghosh, Bijoy K.

2001-03-26

122

Machine tool accuracy characterization workshops. Final report, May 5, 1992--November 5 1993  

SciTech Connect

The ability to assess the accuracy of machine tools is required by both tool builders and users. Builders must have this ability in order to predict the accuracy capability of a machine tool for different part geometry`s, to provide verifiable accuracy information for sales purposes, and to locate error sources for maintenance, troubleshooting, and design enhancement. Users require the same ability in order to make intelligent choices in selecting or procuring machine tools, to predict component manufacturing accuracy, and to perform maintenance and troubleshooting. In both instances, the ability to fully evaluate the accuracy capabilities of a machine tool and the source of its limitations is essential for using the tool to its maximum accuracy and productivity potential. This project was designed to transfer expertise in modern machine tool accuracy testing methods from LLNL to US industry, and to educate users on the use and application of emerging standards for machine tool performance testing.

NONE

1995-01-06

123

Analysis of partial setup strategies for solving the operational planning problem in parallel machine electronic assembly systems  

Microsoft Academic Search

In this paper, we analyse the operational planning problem in an electronic assembly system with multiple placement machines operating in parallel. The partial setup strategy is proposed as an effective methodology for this problem. This strategy attempts to determine the balance between processing time and changeover time during system operation. The Tour primary issues are determining the assignment of products

B. A. PETERS; G. S. SUBRAMANIAN

1996-01-01

124

Machining and inspection of structural ceramic components. CRADA final report for CRADA number Y-1292-0078  

SciTech Connect

This document is the final report of the Cooperative Research and Development Agreement (CRADA) between Lockheed Martin Energy Systems, Inc. (Energy Systems) and the Coors Ceramics Company (Coors). The purpose of this CRADA was to develop advanced technology and manufacturing practices for machining and inspecting ceramic components. Specific CRADA objectives were accomplished through the completion of six projects at four separate Coors facilities. The projects included the development of an analytical model to simulate the mechanics of a powder rolling process, development and testing of a microwave-based system for measuring the density of conveyed ceramic material, and the development and testing of four machine vision inspection systems. This CRADA benefited the U.S. Department of Energy (DOE) activities associated with advanced heat engines, enhanced critical manufacturing skills within the DOE complex for fabricating precision, high quality workpieces from difficult-to-machine materials, and enabled U.S. industry to maintain a position of leadership in the structural ceramics field.

Counts, R.W.; Albright, S.; Ritland, M. [and others

1996-09-30

125

Determination of finish-cutting operation number and machining-parameters setting in wire electrical discharge machining  

Microsoft Academic Search

Wire electrical discharge machining (WEDM) plays an important role in precision manufacturing. To obtain a precise workpiece with good surface quality, some extra repetitive finish cuts along the rough cutting contour are necessary. An attempt has been made to unveil the influence of the machining parameter (pulse-on time, pulse-off time, table feed-rate, flushing pressure, distance between wire periphery and workpiece

J. T. Huang; Y. S. Liao; W. J. Hsue

1999-01-01

126

Machinability of clean thin-wall gray and ductile iron castings. Final report  

SciTech Connect

First phase was to develop a laboratory technique for evaluating the machinability of gray and ductile iron; longer term goal is to learn how to modify the foundry process to produce castings meeting all specified mechanical properties while providing improved machining behavior. Microcarbides present in the irons were found to dominate the machinability of iron. Pearlitic irons with acceptable machinability contain 8.9 to 10.5 wt% microcarbides. The weight fraction microcarbides in the iron is influenced by carbide forming element concentrations, presence of elements that retard carbon diffusion, and cooling rate from the eutectic through the eutectoid temperature range. Tool wear rate increased at higher surface machining speeds and fraction microcarbides; all irons containing above 11.5% microcarbides had poor machinability. Graphite size, shape, distribution, etc. had a lesser effect on machinability. Reducing the addition of a foundry grade Ca and Al bearing 75% FeSi inoculant from 0.5 to 0.2% increased the tool life 100%. Inoculation test castings were also poured in a class 40 gray iron; laboratory analysis is currently underway. Exploratory studies were conducted to determine if tool force could be used to predict tool life: torque and feed forces were found to correlate with machinability.

Bates, C.E.; Littleton, H.E.; Eleftheriou, E.; Griffin, R.D.; Dwyer, Z.B.; DelSorbo, C.; Sprague, J.

1997-02-01

127

Comparison of multiobjective evolutionary algorithms for operations scheduling under machine availability constraints.  

PubMed

Many of the problems that arise in production systems can be handled with multiobjective techniques. One of those problems is that of scheduling operations subject to constraints on the availability of machines and buffer capacity. In this paper we analyze different Evolutionary multiobjective Algorithms (MOEAs) for this kind of problems. We consider an experimental framework in which we schedule production operations for four real world Job-Shop contexts using three algorithms, NSGAII, SPEA2, and IBEA. Using two performance indexes, Hypervolume and R2, we found that SPEA2 and IBEA are the most efficient for the tasks at hand. On the other hand IBEA seems to be a better choice of tool since it yields more solutions in the approximate Pareto frontier. PMID:24489502

Frutos, M; Mndez, M; Tohm, F; Broz, D

2013-01-01

128

Comparison of Multiobjective Evolutionary Algorithms for Operations Scheduling under Machine Availability Constraints  

PubMed Central

Many of the problems that arise in production systems can be handled with multiobjective techniques. One of those problems is that of scheduling operations subject to constraints on the availability of machines and buffer capacity. In this paper we analyze different Evolutionary multiobjective Algorithms (MOEAs) for this kind of problems. We consider an experimental framework in which we schedule production operations for four real world Job-Shop contexts using three algorithms, NSGAII, SPEA2, and IBEA. Using two performance indexes, Hypervolume and R2, we found that SPEA2 and IBEA are the most efficient for the tasks at hand. On the other hand IBEA seems to be a better choice of tool since it yields more solutions in the approximate Pareto frontier. PMID:24489502

Frutos, M.; Mndez, M.; Tohm, F.; Broz, D.

2013-01-01

129

Incidence of MSDs and neck and back pain among logging machine operators in the southern U.S.  

PubMed

There are limited data about the incidence and prevalence of musculoskeletal disorders (MSDs) among loggers in the southern U.S. despite the risk factors associated with these occupations. Risk factors are both personal (age, body mass index, etc.) and job-related (awkward postures, repetitive hand and foot movements, vibration, etc.). A survey was conducted to estimate the incidence of self-reported pain and diagnosed MSDs and to study the relationship with known risk factors. Respondents were loggers attending training and continuing education classes. Respondents were asked to identify personal attributes, machine use, awkward postures, repetitive movements, and recent incidence of pain and medical diagnoses. All were male with an average age of 44 (range of 19-67) and an average body mass index of 31.3. Most were machine operators (97%) who have worked in the logging industry for an average of 22.9 years. Most machines identified were manufactured within the past ten years (average machine age 6.7 years). For machine operators, 10.5% (16) reported an MSD diagnosis, 74.3% (113) reported at least mild back pain, and 71.7% (109) reported at least mild neck pain over the past year. Further analysis attempted to identify an association between personal attributes, machine use, posture, and pain. Risk factors related to machine use may be biased since most survey respondents had considerable choice or control in working conditions, as they were firm owners and/or supervisors. PMID:25174152

Lynch, S M; Smidt, M F; Merrill, P D; Sesek, R F

2014-07-01

130

Graphic Arts--Offset Press Operator/Duplicating Machine. TI-622. Instructor's Manual and Student Learning Activity Guide.  

ERIC Educational Resources Information Center

This instructor's manual and student learning activity guide comprise a kit for a graphic arts activity on offset press operator/duplicating machine. Purpose stated for the activity is to provide the student with an understanding of the basic operation involved in the production of printed matter in the graphic communications industry through the

Michelsen, Robert F.

131

Light to investigate (read) and operate (write) molecular devices and machines.  

PubMed

The development of multicomponent (supramolecular) systems that can perform predetermined functions under external control - i.e., molecular devices - is a challenging task in chemistry and a fascinating objective in the frame of a bottom-up approach to nanostructures. In this context light signals can be conveniently used both for supplying energy to the system and for probing its states and transformations. The aim of this tutorial review is to recall a few basic aspects of light-induced processes that can be used to "write" and "read" onto molecular and supramolecular systems. These principles are illustrated through some examples of artificial molecular devices and machines taken from our work, which provide a flavour of current research. They are molecular and supramolecular systems that operate and/or perform valuable functions by exploiting photoinduced energy- or electron-transfer processes, photoisomerization reactions, or photoinduced proton transfer. The choice of these examples was based on both their intrinsic importance for the referred topic and their educational value. In the last section of the review potential applications, limitations and future directions of the research in the field of artificial molecular devices and machines are also discussed. PMID:24590055

Ceroni, Paola; Credi, Alberto; Venturi, Margherita

2014-06-21

132

Control of soft machines using actuators operated by a Braille display.  

PubMed

One strategy for actuating soft machines (e.g., tentacles, grippers, and simple walkers) uses pneumatic inflation of networks of small channels in an elastomeric material. Although the management of a few pneumatic inputs and valves to control pressurized gas is straightforward, the fabrication and operation of manifolds containing many (>50) independent valves is an unsolved problem. Complex pneumatic manifolds-often built for a single purpose-are not easily reconfigured to accommodate the specific inputs (i.e., multiplexing of many fluids, ranges of pressures, and changes in flow rates) required by pneumatic systems. This paper describes a pneumatic manifold comprising a computer-controlled Braille display and a micropneumatic device. The Braille display provides a compact array of 64 piezoelectric actuators that actively close and open elastomeric valves of a micropneumatic device to route pressurized gas within the manifold. The positioning and geometries of the valves and channels in the micropneumatic device dictate the functionality of the pneumatic manifold, and the use of multi-layer soft lithography permits the fabrication of networks in a wide range of configurations with many possible functions. Simply exchanging micropneumatic devices of different designs enables rapid reconfiguration of the pneumatic manifold. As a proof of principle, a pneumatic manifold controlled a soft machine containing 32 independent actuators to move a ball above a flat surface. PMID:24196070

Mosadegh, Bobak; Mazzeo, Aaron D; Shepherd, Robert F; Morin, Stephen A; Gupta, Unmukt; Sani, Idin Zhalehdoust; Lai, David; Takayama, Shuichi; Whitesides, George M

2014-01-01

133

Control of Soft Machines using Actuators Operated by a Braille Display  

PubMed Central

One strategy for actuating soft machines (e.g., tentacles, grippers, and simple walkers) uses pneumatic inflation of networks of small channels in an elastomeric material. Although the management of a few pneumatic inputs and valves to control pressurized gas is straightforward, the fabrication and operation of manifolds containing many (>50) independent valves is an unsolved problem. Complex pneumatic manifoldsoften built for a single purposeare not easily reconfigured to accommodate the specific inputs (i.e., multiplexing of many fluids, ranges of pressures, and changes in flow rates) required by pneumatic systems. This paper describes a pneumatic manifold comprising a computer-controlled braille display and a micropneumatic device. The braille display provides a compact array of 64 piezoelectric actuators that actively close and open elastomeric valves of a micropneumatic device to route pressurized gas within the manifold. The positioning and geometries of the valves and channels in the micropneumatic device dictate the functionality of the pneumatic manifold, and the use of multi-layer soft lithography permits the fabrication of networks in a wide range of configurations with many possible functions. Simply exchanging micropneumatic devices of different designs enables rapid reconfiguration of the pneumatic manifold. As a proof of principle, a pneumatic manifold controlled a soft machine containing 32 independent actuators to move a ball above a flat surface. PMID:24196070

Mosadegh, Bobak; Mazzeo, Aaron D.; Shepherd, Robert F.; Morin, Stephen A.; Gupta, Unmukt; Sani, Idin Zhalehdoust; Lai, David; Takayama, Shuichi; Whitesides, George M.

2013-01-01

134

Operational readiness review phase-1 final report for WRAP-1  

SciTech Connect

This report documents the Operational Readiness Review for WRAP-1 Phase-1 operations. The report includes all criteria, lines of inquiry with resulting Findings and Observations. The review included assessing operational capability of the organization and the computer controlled process and facility systems.

Bowen, W., Westinghouse Hanford

1996-12-27

135

77 FR 11585 - Notice of Availability of the Aspinall Unit Operations Final Environmental Impact Statement...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Reclamation Notice of Availability of the Aspinall Unit Operations Final Environmental Impact Statement, Wayne N. Aspinall Unit, Colorado River Storage Project...agency responsible for operation of the Aspinall Unit, announces the availability...

2012-02-27

136

Motor proteins and molecular motors: how to operate machines at the nanoscale  

NASA Astrophysics Data System (ADS)

Several classes of biological molecules that transform chemical energy into mechanical work are known as motor proteins or molecular motors. These nanometer-sized machines operate in noisy stochastic isothermal environments, strongly supporting fundamental cellular processes such as the transfer of genetic information, transport, organization and functioning. In the past two decades motor proteins have become a subject of intense research efforts, aimed at uncovering the fundamental principles and mechanisms of molecular motor dynamics. In this review, we critically discuss recent progress in experimental and theoretical studies on motor proteins. Our focus is on analyzing fundamental concepts and ideas that have been utilized to explain the non-equilibrium nature and mechanisms of molecular motors.

Kolomeisky, Anatoly B.

2013-11-01

137

Auctioneers, see Regulation 1565. Vending Machine Operators, see Regulation 1574. (a) IN GENERAL.  

E-print Network

(1) RETAILERS HAVING ONE PLACE OF BUSINESS. For the purposes of the Transactions (Sales) and Use Tax Law, if a retailer has only one place of business in this state, all California retail sales of that retailer occur at that place of business unless the tangible personal property sold is delivered by the retailer or his or her agent to an out-of-state destination, or to a common carrier for delivery to an out-of-state destination. (2) RETAILERS HAVING MORE THAN ONE PLACE OF BUSINESS. If a retailer has more than one place of business in this state which participate in the sale, the sale occurs at the place of business where the principal negotiations are carried on. If this place is the place where the order is taken, it is immaterial that the order must be forwarded elsewhere for acceptance, approval of credit, shipment, or billing. For the purposes of this regulation, an employees activities will be attributed to the place of business out of which he or she works. (3) PLACE OF PASSAGE OF TITLE IMMATERIAL. If title to the tangible personal property sold passes to the purchaser in California, it is immaterial that title passes to the purchaser outside the taxing jurisdiction in which the retailers place of business is located. (b) PLACE OF SALE IN SPECIFIC INSTANCES. (1) VENDING MACHINE OPERATORS. The place of sale is the place at which the vending machine is located. If an operator purchases property under a resale certificate or from an out-of-district seller without payment

unknown authors

138

Methods, systems and apparatus for controlling third harmonic voltage when operating a multi-space machine in an overmodulation region  

SciTech Connect

Methods, system and apparatus are provided for controlling third harmonic voltages when operating a multi-phase machine in an overmodulation region. The multi-phase machine can be, for example, a five-phase machine in a vector controlled motor drive system that includes a five-phase PWM controlled inverter module that drives the five-phase machine. Techniques for overmodulating a reference voltage vector are provided. For example, when the reference voltage vector is determined to be within the overmodulation region, an angle of the reference voltage vector can be modified to generate a reference voltage overmodulation control angle, and a magnitude of the reference voltage vector can be modified, based on the reference voltage overmodulation control angle, to generate a modified magnitude of the reference voltage vector. By modifying the reference voltage vector, voltage command signals that control a five-phase inverter module can be optimized to increase output voltages generated by the five-phase inverter module.

Perisic, Milun; Kinoshita, Michael H; Ranson, Ray M; Gallegos-Lopez, Gabriel

2014-06-03

139

A Boltzmann machine for the organization of intelligent machines  

NASA Technical Reports Server (NTRS)

In the present technological society, there is a major need to build machines that would execute intelligent tasks operating in uncertain environments with minimum interaction with a human operator. Although some designers have built smart robots, utilizing heuristic ideas, there is no systematic approach to design such machines in an engineering manner. Recently, cross-disciplinary research from the fields of computers, systems AI and information theory has served to set the foundations of the emerging area of the design of intelligent machines. Since 1977 Saridis has been developing an approach, defined as Hierarchical Intelligent Control, designed to organize, coordinate and execute anthropomorphic tasks by a machine with minimum interaction with a human operator. This approach utilizes analytical (probabilistic) models to describe and control the various functions of the intelligent machine structured by the intuitively defined principle of Increasing Precision with Decreasing Intelligence (IPDI) (Saridis 1979). This principle, even though resembles the managerial structure of organizational systems (Levis 1988), has been derived on an analytic basis by Saridis (1988). The purpose is to derive analytically a Boltzmann machine suitable for optimal connection of nodes in a neural net (Fahlman, Hinton, Sejnowski, 1985). Then this machine will serve to search for the optimal design of the organization level of an intelligent machine. In order to accomplish this, some mathematical theory of the intelligent machines will be first outlined. Then some definitions of the variables associated with the principle, like machine intelligence, machine knowledge, and precision will be made (Saridis, Valavanis 1988). Then a procedure to establish the Boltzmann machine on an analytic basis will be presented and illustrated by an example in designing the organization level of an Intelligent Machine. A new search technique, the Modified Genetic Algorithm, is presented and proved to converge to the minimum of a cost function. Finally, simulations will show the effectiveness of a variety of search techniques for the intelligent machine.

Moed, Michael C.; Saridis, George N.

1989-01-01

140

TEACHING BEGINNING READING TO HEARING IMPAIRED CHILDREN, USING A VISUAL METHOD AND TEACHING MACHINES. FINAL REPORT.  

ERIC Educational Resources Information Center

AN AUTOMATED INSTRUCTIONAL SYSTEM WAS DEVELOPED TO TEACH BEGINNING READING TO HEARING IMPAIRED CHILDREN USING A NON-ORAL METHOD. INSTRUCTION WAS DONE WITH VISUAL PRESENTATION USING 35MM SLIDES ON A REAR PROJECTION SCREEN. THIS TEACHING MACHINE, THE HONEYWELL UNIVERSITY OF MINNESOTA INSTRUCTIONAL DEVICE (HUMID) WAS CONSTRUCTED WITH AN AUTOMATIC

KARLSEN, BJORN

141

A knowledge based model of electric utility operations. Final report  

SciTech Connect

This report consists of an appendix to provide a documentation and help capability for an analyst using the developed expert system of electric utility operations running in CLIPS. This capability is provided through a separate package running under the WINDOWS Operating System and keyed to provide displays of text, graphics and mixed text and graphics that explain and elaborate on the specific decisions being made within the knowledge based expert system.

NONE

1993-08-11

142

Control Aspects of the Brushless Doubly-Fed Machine : Final Report.  

SciTech Connect

This report covers the investigations into the control aspects of a variable-speed generation (VSG) system using a brushless double-fed generator excited by a series-resonant converter. The brushless double-fed machine comprises two sets of stator 3-phase systems which are designed with common windings. The rotor is a cage rotor resembling the low-cost and robust squirrel cage of a conventional induction machine. The system was actually designed and set up in the Energy Laboratory of the Department of Electrical and Computer Engineering at Oregon State University. The series-resonant converter designed to achieve effective control for variable-speed generation with the brushless doubly-fed generator was adequate in terms of required time response and regulation as well as in providing for adequate power quality. The three elements of the VSG controller, i.e., voltage or reactive power controller, the efficiency maximizer and the stabilizer, could be designed using conventional microprocessor elements with a processing time well within the time period required for sampling the variables involved with executing the control tasks. The report treats in detail the stability problem encountered in running the machine at certain speed regions, even if requirements for steady-state stability are satisfied. In this unstable region, shut down of the VSG system is necessary unless proper stabilization controls are provided for. The associated measures to be taken are presented. 10 refs., 24 figs.

Lauw, Hian K.; Krishnan, Sheela

1990-09-01

143

Individual and work related factors associated with symptoms of musculoskeletal complaints. II. Different risk factors among sewing machine operators  

Microsoft Academic Search

Individual and work related risk factors in the development of occupational musculoskeletal complaints were studied in a group of 210 female production workers, mainly sewing machine operators. Another group of 35 female employees performing secretarial or laboratory duties were also included. The production workers had significantly higher symptom scores with respect to self reported musculoskeletal complaints than the group with

R H Westgaard; T Jansen

1992-01-01

144

A Framework for Final Drive Simultaneous Failure Diagnosis Based on Fuzzy Entropy and Sparse Bayesian Extreme Learning Machine  

PubMed Central

This research proposes a novel framework of final drive simultaneous failure diagnosis containing feature extraction, training paired diagnostic models, generating decision threshold, and recognizing simultaneous failure modes. In feature extraction module, adopt wavelet package transform and fuzzy entropy to reduce noise interference and extract representative features of failure mode. Use single failure sample to construct probability classifiers based on paired sparse Bayesian extreme learning machine which is trained only by single failure modes and have high generalization and sparsity of sparse Bayesian learning approach. To generate optimal decision threshold which can convert probability output obtained from classifiers into final simultaneous failure modes, this research proposes using samples containing both single and simultaneous failure modes and Grid search method which is superior to traditional techniques in global optimization. Compared with other frequently used diagnostic approaches based on support vector machine and probability neural networks, experiment results based on F1-measure value verify that the diagnostic accuracy and efficiency of the proposed framework which are crucial for simultaneous failure diagnosis are superior to the existing approach. PMID:25722717

Ye, Qing; Pan, Hao; Liu, Changhua

2015-01-01

145

Modification of local weather by power plant operation. Final report  

Microsoft Academic Search

Power plant operation can affect weather as a result of emissions of effluents and from release of waste heat. Effluents can cause acid rain and impaired visibility. The release of waste heat can affect weather by changing local meteorology in a manner which stimulates an otherwise inactive convective instability. In general, however, the energy from waste heat from a conventional

Laurmann

1978-01-01

146

The Body of Knowledge & Content Framework. Identifying the Important Knowledge Required for Productive Performance of a Plastics Machine Operator. Blow Molding, Extrusion, Injection Molding, Thermoforming.  

ERIC Educational Resources Information Center

Designed to guide training and curriculum development to prepare machine operators for the national certification exam, this publication identifies the important knowledge required for productive performance by a plastics machine operator. Introductory material discusses the rationale for a national standard, uses of the Body of Knowledge,

Society of the Plastics Industry, Inc., Washington, DC.

147

Autonomous proximity operations using machine vision for trajectory control and pose estimation  

NASA Technical Reports Server (NTRS)

A machine vision algorithm was developed which permits guidance control to be maintained during autonomous proximity operations. At present this algorithm exists as a simulation, running upon an 80386 based personal computer, using a ModelMATE CAD package to render the target vehicle. However, the algorithm is sufficiently simple, so that following off-line training on a known target vehicle, it should run in real time with existing vision hardware. The basis of the algorithm is a sequence of single camera images of the target vehicle, upon which radial transforms were performed. Selected points of the resulting radial signatures are fed through a decision tree, to determine whether the signature matches that of the known reference signatures for a particular view of the target. Based upon recognized scenes, the position of the maneuvering vehicle with respect to the target vehicles can be calculated, and adjustments made in the former's trajectory. In addition, the pose and spin rates of the target satellite can be estimated using this method.

Cleghorn, Timothy F.; Sternberg, Stanley R.

1991-01-01

148

Neck and shoulder complaints among sewing-machine operators: a study concerning frequency, symptomatology and dysfunction.  

PubMed

The occupation of sewing-machine operators (SMO) involves monotonous and repetitive tasks, performed in a work position equivalent to a static component of muscular load on the neck and shoulder. The present study concerns the occurrence of neck-shoulder problems in a population of SMO. A total of 224 SMO from four textile factories in the western part of Sweden were subjected to a comprehensive questionnaire about demographic, vocational, medical and psychosocial data. The Nordic Ministry Questionnaire specifically directed towards neck-shoulder complaints showed a prevalence rate during the last 12 months of 75% and during the last seven days a rate of 51%. Daily problems were experienced by 26%. Some 27% had had problems leading to restraints in work time and 37% in leisure time. Those SMO screening positive were clinically examined in an attempt to describe the clinical picture behind the complaints. Diagnoses were made according to specific criteria. The tension neck syndrome (TNS) was most frequent, followed by the cervical syndrome. In half of those examined, symptoms and findings were too unspecific for diagnosis. A positive correlation between the TNS and working hours per week suggests a daily prolonged static load on the neck and shoulder to be of importance for neck-shoulder problems among the SMO. PMID:15676820

Blder, S; Barck-Holst, U; Danielsson, S; Ferhm, E; Kalpamaa, M; Leijon, M; Lindh, M; Markhede, G

1991-08-01

149

LACIE performance predictor final operational capability program description, volume 1  

NASA Technical Reports Server (NTRS)

The program EPHEMS computes the orbital parameters for up to two vehicles orbiting the earth for up to 549 days. The data represents a continuous swath about the earth, producing tables which can be used to determine when and if certain land segments will be covered. The program GRID processes NASA's climatology tape to obtain the weather indices along with associated latitudes and longitudes. The program LUMP takes substrata historical data and sample segment ID, crop window, crop window error and statistical data, checks for valid input parameters and generates the segment ID file, crop window file and the substrata historical file. Finally, the System Error Executive (SEE) Program checks YES error and truth data, CAMS error data, and signature extension data for validity and missing elements. A message is printed for each error found.

1976-01-01

150

Learning about Simple Machines  

NSDL National Science Digital Library

This activity is designed to learn about simple machines and to have fun doing so! First, use this website to learn backround information on the basics of simple machines. Try the quiz! Simple Machines Learning Site Next, play a game that tests your ability to identify simple machines.... Edheads: Simple Machines Finally, view this video to see how students your age used applied simple machines to do a cool task... Building Simple Machines: A Glass of Milk, Please ...

Mrs. Keller

2010-01-17

151

Modeling of spindle-bearing and machine tool systems for virtual simulation of milling operations  

Microsoft Academic Search

This paper presents a general, integrated model of the spindle bearing and machine tool system, consisting of a rotating shaft, tool holder, angular contact ball bearings, housing, and the machine tool mounting. The model allows virtual cutting of a work material with the numerical model of the spindle during the design stage. The proposed model predicts bearing stiffness, mode shapes,

Yuzhong Cao; Y. Altintas

2007-01-01

152

Mobile worksystems for decontamination and decommissioning operations. Final report  

SciTech Connect

This project is an interdisciplinary effort to develop effective mobile worksystems for decontamination and decommissioning (D&D) of facilities within the DOE Nuclear Weapons Complex. These mobile worksystems will be configured to operate within the environmental and logistical constraints of such facilities and to perform a number of work tasks. Our program is designed to produce a mobile worksystem with capabilities and features that are matched to the particular needs of D&D work by evolving the design through a series of technological developments, performance tests and evaluations. The Phase I effort was based on a robot called the Remote Work Vehicle (RWV) that was previously developed by CMU for use in D&D operations at the Three Mile Island Unit 2 Reactor Building basement. During Phase I of this program, the RWV was rehabilitated and upgraded with contemporary control and user interface technologies and used as a testbed for remote D&D operations. We established a close working relationship with the DOE Robotics Technology Development Program (RTDP). In the second phase, we designed and developed a next generation mobile worksystem, called Rosie, and a semi-automatic task space scene analysis system, called Artisan, using guidance from RTDP. Both systems are designed to work with and complement other RTDP D&D technologies to execute selective equipment removal scenarios in which some part of an apparatus is extricated while minimally disturbing the surrounding objects. RTDP has identified selective equipment removal as a timely D&D mission, one that is particularly relevant during the de-activation and de-inventory stages of facility transitioning as a means to reduce the costs and risks associated with subsequent surveillance and monitoring. In the third phase, we tested and demonstrated core capabilities of Rosie and Artisan; we also implemented modifications and enhancements that improve their relevance to DOE`s facility transitioning mission.

NONE

1997-02-01

153

Robotic concepts for operation in barren terrain. Final report  

SciTech Connect

We have performed a series of studies and configurations for robots that are capable of operating in rough barren terrains. The environments we are targeting are like those of the moon or other planets in the roughness and starkness of the terrains, the loose and hard materials that range from sandy slopes to boulder fields, and the extremes of temperature that are encountered in such places. We present a mission scenario, requirements and then present and evaluate a mechanism design. Additional subsystem issues of power, communication, sensing, and computing are all addressed with respect to these requirements.

Dowling, K. [Carnegie-Mellon Univ., Pittsburgh, PA (United States)

1993-01-01

154

A study pertaining to inertial energy storage machine designs for space applications. Final report  

SciTech Connect

The preliminary design of a counterrotating fast discharge homopolar generator (HPG) and a counterrotating active rotary flux compressor (CARFC) for space application is reported. The HPG is a counterrotating spool-type homopolar with superconducting field coil excitation. It delivers a 20-ms, 145-kJ pulse to a magnetoplasmahydrodynamic thruster. The peak output current is 42.7 kA at 240 V. After 20 ms the current is 29.7 kA at 167 V. The CARFC delivers ten 50-kJ, 250 microsecond pulses at 50-ms interval to six Xenon flash lamps pumping an Nd glass laser. The flux compressor is counterrotating for torque compensation. Current is started in the machine with a 5-kV, 5-kJ pulse-charged capacitor. Both designs were based upon demonstrated technology. The sensitivity of the designs to technology that may be available in five to ten years was determined.

Zowarka, R.C.

1981-08-01

155

Final Report - Membranes and MEA's for Dry, Hot Operating Conditions  

SciTech Connect

The focus of this program was to develop a new Proton Exchange Membrane (PEM) which can operate under hotter, dryer conditions than the state of the art membranes today and integrate it into a Membrane Electrode Assembly (MEA). These MEA's should meet the performance and durability requirements outlined in the solicitation, operating under low humidification conditions and at temperatures ranging from -20???ºC to 120???ºC, to meet 2010 DOE technical targets for membranes. This membrane should operate under low humidification conditions and at temperatures ranging from -20???ºC to 120???ºC in order to meet DOE HFCIT 2010 commercialization targets for automotive fuel cells. Membranes developed in this program may also have improved durability and performance characteristics making them useful in stationary fuel cell applications. The new membranes, and the MEA?¢????s comprising them, should be manufacturable at high volumes and at costs which can meet industry and DOE targets. This work included: A) Studies to better understand factors controlling proton transport within the electrolyte membrane, mechanisms of polymer degradation (in situ and ex situ) and membrane durability in an MEA; B) Development of new polymers with increased proton conductivity over the range of temperatures from -20???ºC to 120???ºC and at lower levels of humidification and with improved chemical and mechanical stability; C) Development of new membrane additives for increased durability and conductivity under these dry conditions; D) Integration of these new materials into membranes and membranes into MEA?¢????s, including catalyst and gas diffusion layer selection and integration; E) Verification that these materials can be made using processes which are scalable to commercial volumes using cost effective methods; F) MEA testing in single cells using realistic automotive testing protocols. This project addresses technical barriers A (Durability) and C (Performance) from the Fuel Cells section of the 2005 Hydrogen, Fuel Cells and Infrastructure Technologies Program Multi-Year R&D Plan. In the course of this four-year program we developed a new PEM with improved proton conductivity, chemical stability and mechanical stability. We incorporated this new membrane into MEAs and evaluated performance and durability.

Hamrock, Steven J.

2011-06-30

156

Operational testing of intelligent rail lubrication system. Final report  

SciTech Connect

This IDEA project designs, builds, and demonstrates an automated, computer-controlled onboard intelligent system for applying new environmentally safe and consumable lubricants for rail systems. The IDEA product is to be operationally tested in a commuter rail system (METRA) for providing controlled lubrication on rails and wheel in an environmentally safe way. The lubricant applied to the rail will reduce friction between the wheel and rail and is expected to provide significant benefits in maintenance, safety, and overall economic efficiency. Progressive development of a rail lubrication system for US railroads indicates potential major benefits including reduction in wheel wear, rail wear, and track maintenance costs. Significant benefits transferable to commuter rail and high-speed transit systems are expected as well.

Kumar, S.

1998-06-01

157

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

SciTech Connect

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

Dodson, Guy; Pero, Vincent (Shoshone-Paiute Tribes of the Duck Valley Reservation. Dept. of Habitat, Parks, Fish and Game.)

2002-01-01

158

Smart Infrared Inspection System Field Operational Test Final Report  

SciTech Connect

The Smart InfraRed Inspection System (SIRIS) is a tool designed to assist inspectors in determining which vehicles passing through the SIRIS system are in need of further inspection by measuring the thermal data from the wheel components. As a vehicle enters the system, infrared cameras on the road measure temperatures of the brakes, tires, and wheel bearings on both wheel ends of commercial motor vehicles (CMVs) in motion. This thermal data is then presented to enforcement personal inside of the inspection station on a user friendly interface. Vehicles that are suspected to have a violation are automatically alerted to the enforcement staff. The main goal of the SIRIS field operational test (FOT) was to collect data to evaluate the performance of the prototype system and determine the viability of such a system being used for commercial motor vehicle enforcement. From March 2010 to September 2010, ORNL facilitated the SIRIS FOT at the Greene County Inspection Station (IS) in Greeneville, Tennessee. During the course of the FOT, 413 CMVs were given a North American Standard (NAS) Level-1 inspection. Of those 413 CMVs, 384 were subjected to a SIRIS screening. A total of 36 (9.38%) of the vehicles were flagged by SIRIS as having one or more thermal issues; with brakes issues making up 33 (91.67%) of those. Of the 36 vehicles flagged as having thermal issues, 31 (86.11%) were found to have a violation and 30 (83.33%) of those vehicles were placed out-of-service (OOS). Overall the enforcement personnel who have used SIRIS for screening purposes have had positive feedback on the potential of SIRIS. With improvements in detection algorithms and stability, the system will be beneficial to the CMV enforcement community and increase overall trooper productivity by accurately identifying a higher percentage of CMVs to be placed OOS with minimal error. No future evaluation of SIRIS has been deemed necessary and specifications for a production system will soon be drafted.

Siekmann, Adam [ORNL; Capps, Gary J [ORNL; Franzese, Oscar [ORNL; Lascurain, Mary Beth [ORNL

2011-06-01

159

Stochastically driven single-level quantum dot: a nanoscale finite-time thermodynamic machine and its various operational modes.  

PubMed

We describe a single-level quantum dot in contact with two leads as a nanoscale finite-time thermodynamic machine. The dot is driven by an external stochastic force that switches its energy between two values. In the isothermal regime, it can operate as a rechargeable battery by generating an electric current against the applied bias in response to the stochastic driving and then redelivering work in the reverse cycle. This behavior is reminiscent of the Parrondo paradox. If there is a thermal gradient the device can function as a work-generating thermal engine or as a refrigerator that extracts heat from the cold reservoir via the work input of the stochastic driving. The efficiency of the machine at maximum power output is investigated for each mode of operation, and universal features are identified. PMID:22587048

Esposito, Massimiliano; Kumar, Niraj; Lindenberg, Katja; Van den Broeck, Christian

2012-03-01

160

Degrons in Protein Substrates Program the Speed and Operating Efficiency of the AAA+ Lon Proteolytic Machine  

E-print Network

AAA+ proteases are ATP-fueled machines that bind protein substrates via a degradation tag, unfold the molecule if necessary, and then translocate the polypeptide into a chamber for proteolysis. Tag recognition is normally ...

Sauer, Robert T.

161

29 CFR 570.62 - Occupations involved in the operation of bakery machines (Order 11).  

Code of Federal Regulations, 2014 CFR

...adjusting, repairing, oiling, or cleaning any horizontal or vertical dough mixer; batter mixer; bread dividing, rounding, or molding machine...portable counter-top power-driven food mixers that are, or are comparable to, models...

2014-07-01

162

29 CFR 570.62 - Occupations involved in the operation of bakery machines (Order 11).  

Code of Federal Regulations, 2013 CFR

...adjusting, repairing, oiling, or cleaning any horizontal or vertical dough mixer; batter mixer; bread dividing, rounding, or molding machine...portable counter-top power-driven food mixers that are, or are comparable to, models...

2013-07-01

163

29 CFR 570.62 - Occupations involved in the operation of bakery machines (Order 11).  

Code of Federal Regulations, 2010 CFR

...adjusting, repairing, oiling, or cleaning any horizontal or vertical dough mixer; batter mixer; bread dividing, rounding, or molding machine...portable counter-top power-driven food mixers that are, or are comparable to, models...

2010-07-01

164

29 CFR 570.62 - Occupations involved in the operation of bakery machines (Order 11).  

Code of Federal Regulations, 2012 CFR

...adjusting, repairing, oiling, or cleaning any horizontal or vertical dough mixer; batter mixer; bread dividing, rounding, or molding machine...portable counter-top power-driven food mixers that are, or are comparable to, models...

2012-07-01

165

29 CFR 570.62 - Occupations involved in the operation of bakery machines (Order 11).  

Code of Federal Regulations, 2011 CFR

...adjusting, repairing, oiling, or cleaning any horizontal or vertical dough mixer; batter mixer; bread dividing, rounding, or molding machine...portable counter-top power-driven food mixers that are, or are comparable to, models...

2011-07-01

166

Applied machine vision of plants: a review with implications for field deployment in automated farming operations  

Microsoft Academic Search

Automated visual assessment of plant condition, specifically foliage wilting, reflectance and growth parameters, using machine\\u000a vision has potential use as input for real-time variable-rate irrigation and fertigation systems in precision agriculture.\\u000a This paper reviews the research literature for both outdoor and indoor applications of machine vision of plants, which reveals\\u000a that different environments necessitate varying levels of complexity in both

C. L. McCarthy; N. H. Hancock; S. R. Raine

2010-01-01

167

Optimization of characteristics of refrigerating machine operating with recharging of compressor cylinder with refrigerant  

Microsoft Academic Search

The results of scientific and technical research for improving the characteristics of small refrigerating machines (SRM) by\\u000a adapting them to effective natural refrigerants (R600a and R600) are reported. A method, which consists in recharging (supplementary\\u000a charging) of the compressor cylinder with a refrigerant in a Voorhees refrigerating machine, has been proposed for reducing\\u000a losses in the compressor. The results of

G. K. Lavrenchenko

2008-01-01

168

29 CFR 570.63 - Occupations involved in the operation of paper-products machines, scrap paper balers, and paper...  

Code of Federal Regulations, 2010 CFR

...combining machine, sheeting machine, scrap paper baler...involves hand feeding of the machine. (2) The occupations...repairing, oiling, or cleaning these machines including those which...West 43rd St., Fourth Floor, New York,...

2010-07-01

169

29 CFR 570.63 - Occupations involved in the operation of balers, compactors, and paper-products machines (Order 12).  

Code of Federal Regulations, 2012 CFR

...combining machine, sheeting machine, scrap paper baler...hand feeding of the machine. (2) The occupations...repairing, oiling, or cleaning any of the machines listed in paragraphs...West 43rd St., Fourth Floor, New York, NY...

2012-07-01

170

29 CFR 570.63 - Occupations involved in the operation of balers, compactors, and paper-products machines (Order 12).  

Code of Federal Regulations, 2014 CFR

...combining machine, sheeting machine, scrap paper baler...hand feeding of the machine. (2) The occupations...repairing, oiling, or cleaning any of the machines listed in paragraphs...West 43rd St., Fourth Floor, New York, NY...

2014-07-01

171

29 CFR 570.63 - Occupations involved in the operation of balers, compactors, and paper-products machines (Order 12).  

Code of Federal Regulations, 2013 CFR

...combining machine, sheeting machine, scrap paper baler...hand feeding of the machine. (2) The occupations...repairing, oiling, or cleaning any of the machines listed in paragraphs...West 43rd St., Fourth Floor, New York, NY...

2013-07-01

172

29 CFR 570.63 - Occupations involved in the operation of balers, compactors, and paper-products machines (Order 12).  

Code of Federal Regulations, 2011 CFR

...combining machine, sheeting machine, scrap paper baler...hand feeding of the machine. (2) The occupations...repairing, oiling, or cleaning any of the machines listed in paragraphs...West 43rd St., Fourth Floor, New York, NY...

2011-07-01

173

Innovative grinding wheel design for cost-effective machining of advanced ceramics. Phase I, final report  

SciTech Connect

Norton Company successfully completed the 16-month Phase I technical effort to define requirements, design, develop, and evaluate a next-generation grinding wheel for cost-effective cylindrical grinding of advanced ceramics. This program was a cooperative effort involving three Norton groups representing a superabrasive grinding wheel manufacturer, a diamond film manufacturing division and a ceramic research center. The program was divided into two technical tasks, Task 1, Analysis of Required Grinding Wheel Characteristics, and Task 2, Design and Prototype Development. In Task 1 we performed a parallel path approach with Superabrasive metal-bond development and the higher technical risk, CVD diamond wheel development. For the Superabrasive approach, Task 1 included bond wear and strength tests to engineer bond-wear characteristics. This task culminated in a small-wheel screening test plunge grinding sialon disks. In Task 2, an improved Superabrasive metal-bond specification for low-cost machining of ceramics in external cylindrical grinding mode was identified. The experimental wheel successfully ground three types of advanced ceramics without the need for wheel dressing. The spindle power consumed by this wheel during test grinding of NC-520 sialon is as much as to 30% lower compared to a standard resin bonded wheel with 100 diamond concentration. The wheel wear with this improved metal bond was an order of magnitude lower than the resin-bonded wheel, which would significantly reduce ceramic grinding costs through fewer wheel changes for retruing and replacements. Evaluation of ceramic specimens from both Tasks 1 and 2 tests for all three ceramic materials did not show evidence of unusual grinding damage. The novel CVD-diamond-wheel approach was incorporated in this program as part of Task 1. The important factors affecting the grinding performance of diamond wheels made by CVD coating preforms were determined.

Licht, R.H.; Ramanath, S.; Simpson, M.; Lilley, E.

1996-02-01

174

FINAL REPORT ON CONTROL ALGORITHM TO IMPROVE THE PARTIAL-LOAD EFFICIENCY OFSURFACE PM MACHINES WITH FRACTIONAL-SLOT CONCENTRATED WINDINGS  

SciTech Connect

Surface permanent magnet (SPM) synchronous machines using fractional-slot concentrated windings are being investigated as candidates for high-performance traction machines for automotive electric propulsion systems. It has been shown analytically and experimentally that such designs can achieve very wide constant-power speed ratios (CPSR) [1,2]. This work has shown that machines of this type are capable of achieving very low cogging torque amplitudes as well as significantly increasing the machine power density [3-5] compared to SPM machines using conventional distributed windings. High efficiency can be achieved in this class of SPM machine by making special efforts to suppress the eddy-current losses in the magnets [6-8], accompanied by efforts to minimize the iron losses in the rotor and stator cores. Considerable attention has traditionally been devoted to maximizing the full-load efficiency of traction machines at their rated operating points and along their maximum-power vs. speed envelopes for higher speeds [9,10]. For example, on-line control approaches have been presented for maximizing the full-load efficiency of PM synchronous machines, including the use of negative d-axis stator current to reduce the core losses [11,12]. However, another important performance specification for electric traction applications is the machine's efficiency at partial loads. Partial-load efficiency is particularly important if the target traction application requires long periods of cruising operation at light loads that are significantly lower than the maximum drive capabilities. While the design of the machine itself is clearly important, investigation has shown that this is a case where the choice of the control algorithm plays a critical role in determining the maximum partial-load efficiency that the machine actually achieves in the traction drive system. There is no evidence that this important topic has been addressed for this type of SPM machine by any other authors. This topic takes on even greater significance for fractional-slot concentrated-winding SPM machine designs. In particular, maximizing the torque/power density of this class of SPM machines typically leads to machine designs with high numbers of poles. The resulting high electrical frequencies can easily result in high stator core losses unless special care is taken during the machine design process. The purpose of this report is to discuss a modified vector control algorithm for a fractional-slot concentrated winding SPM machine that has been developed to maximize the machine's partial-load efficiency over a wide range of operating conditions. For purposes of this discussion, a 55 kW (peak) SPM machine designed to meet requirements established in the US FreedomCar program [13] is used as the basis for demonstrating the proposed technique. A combination of closed-form analysis [14] and finite element analysis (FEA) is used during this investigation.

Reddy, P.B.; Jahns, T.M.

2007-04-30

175

Final Report on Control Algorithm to Improve the Partial-Load Efficiency of Surface PM Machines with Fractional-Slot Concentrated Windings  

SciTech Connect

Surface permanent magnet (SPM) synchronous machines using fractional-slot concentrated windings are being investigated as candidates for high-performance traction machines for automotive electric propulsion systems. It has been shown analytically and experimentally that such designs can achieve very wide constant-power speed ratios (CPSR) [1,2]. This work has shown that machines of this type are capable of achieving very low cogging torque amplitudes as well as significantly increasing the machine power density [3-5] compared to SPM machines using conventional distributed windings. High efficiency can be achieved in this class of SPM machine by making special efforts to suppress the eddy-current losses in the magnets [6-8], accompanied by efforts to minimize the iron losses in the rotor and stator cores. Considerable attention has traditionally been devoted to maximizing the full-load efficiency of traction machines at their rated operating points and along their maximum-power vs. speed envelopes for higher speeds [9,10]. For example, on-line control approaches have been presented for maximizing the full-load efficiency of PM synchronous machines, including the use of negative d-axis stator current to reduce the core losses [11,12]. However, another important performance specification for electric traction applications is the machine's efficiency at partial loads. Partial-load efficiency is particularly important if the target traction application requires long periods of cruising operation at light loads that are significantly lower than the maximum drive capabilities. While the design of the machine itself is clearly important, investigation has shown that this is a case where the choice of the control algorithm plays a critical role in determining the maximum partial-load efficiency that the machine actually achieves in the traction drive system. There is no evidence that this important topic has been addressed for this type of SPM machine by any other authors. This topic takes on even greater significance for fractional-slot concentrated-winding SPM machine designs. In particular, maximizing the torque/power density of this class of SPM machines typically leads to machine designs with high numbers of poles. The resulting high electrical frequencies can easily result in high stator core losses unless special care is taken during the machine design process. The purpose of this report is to discuss a modified vector control algorithm for a fractional-slot concentrated winding SPM machine that has been developed to maximize the machine's partial-load efficiency over a wide range of operating conditions. For purposes of this discussion, a 55 kW (peak) SPM machine designed to meet requirements established in the US FreedomCar program [13] is used as the basis for demonstrating the proposed technique. A combination of closed-form analysis [14] and finite element analysis (FEA) is used during this investigation.

McKeever, John W [ORNL; Reddy, Patel [University of Wisconsin; Jahns, Thomas M [ORNL

2007-05-01

176

Methods, systems and apparatus for controlling operation of two alternating current (AC) machines  

DOEpatents

A system is provided for controlling two AC machines. The system comprises a DC input voltage source that provides a DC input voltage, a voltage boost command control module (VBCCM), a five-phase PWM inverter module coupled to the two AC machines, and a boost converter coupled to the inverter module and the DC input voltage source. The boost converter is designed to supply a new DC input voltage to the inverter module having a value that is greater than or equal to a value of the DC input voltage. The VBCCM generates a boost command signal (BCS) based on modulation indexes from the two AC machines. The BCS controls the boost converter such that the boost converter generates the new DC input voltage in response to the BCS. When the two AC machines require additional voltage that exceeds the DC input voltage required to meet a combined target mechanical power required by the two AC machines, the BCS controls the boost converter to drive the new DC input voltage generated by the boost converter to a value greater than the DC input voltage.

Gallegos-Lopez, Gabriel (Torrance, CA); Nagashima, James M. (Cerritos, CA); Perisic, Milun (Torrance, CA); Hiti, Silva (Redondo Beach, CA)

2012-02-14

177

Impact of Winding Layer Number and Magnet Type on Synchronous Surface PM Machines Designed for Wide Constant-Power Speed Range Operation  

Microsoft Academic Search

This paper thoroughly investigates the impact of the winding layer number and the choice of magnet type on the performance characteristics of surface permanent magnet (SPM) machines with fractional-slot concentrated windings designed for wide speed ranges of constant-power operation. This is accomplished by carefully examining the performance characteristics of three different SPM machines designed for the same set of performance

Ayman M. EL-Refaie; T. M. Jahns

2006-01-01

178

Impact of Winding Layer Number and Magnet Type on Synchronous Surface PM Machines Designed for Wide Constant-Power Speed Range Operation  

Microsoft Academic Search

This paper thoroughly investigates the impact of the winding layer number and the choice of magnet type on the performance characteristics of surface permanent magnet (SPM) machines with fractional slot concentrated windings designed for wide speed ranges of constant-power operation. This is accomplished by carefully examining the performance characteristics of three different SPM machines designed for the same set of

Ayman M. El-Refaie; Thomas M. Jahns

2008-01-01

179

Computer Based Motor Parameter Determination for High Speed Operation of Permanent Magnet Synchronous Machines  

E-print Network

THE combination of sinusoidal back-EMF brushless PM synchronous machines and advanced power electronic control can designing a current vector control algorithm for its power electronic drive. The most common parameters used in the implementation of such advanced control algorithms are the simplified model parameters: Ld - the direct axis self

Szabados, Barna

180

Six-phase induction machine operating as a stand-alone self-excited induction generator  

E-print Network

generators are particularly used in small and isolated power plants based on wind turbine or hydroelectric of multiphase induction machines in renewable energy applications such as wind and hydropower. Thus, some exploitation conditions as in wind and hydro energy conversion. The main criteria are simple and rigid

Brest, Universit de

181

When is light work heavy? Components of the physical workload of sewing machine operators working at piecework rates.  

PubMed

Epidemiologists have associated the job of sewing machine operators with a high incidence of musculoskeletal and other health problems, despite its classifications as light work according to energy expenditure criteria. An ergonomic analysis was undertaken in a trouser factory in order to describe components of the physical load of this work: force exerted, repetitions, time allocation and postures. Work activity of ten operators was observed and timed in situ, and forces were measured with a dynamometer. The time required to sew one seam is very short, 10-15 s per trouser leg. This short cycle is repeated more than 1500 times during the work day, involving quasi-continuous movements of the same parts of the body. The fact that movements are repeated so many times means that small details of the task assume a great importance. During the work day, a substantial force is exerted, only part of which can be measured with current technology. By these measurements, operators lift an average 406.1 kg of trousers per day and exert an average total force of 2858.4 kg with the upper limbs and 24 267.9 kg with the lower limbs. The work posture is static: seated with upper back curved and head bent over the sewing machine. Movements of the upper limbs involve abduction and adduction of the shoulders while exerting a force. For the same task, there is considerable variation in the dimensions of workstations. Interviews were conducted to determine the types of musculoskeletal complaints. The components of work activity could be treated to these complaints and to existing epidemiological data on musculoskeletal problems among sewing machine operators. This type of detailed examination can be applied by health and safety personnel to identify task components which could be changed to minimize the probability of musculoskeletal problems. PMID:15676875

Vezina, N; Tierney, D; Messing, K

1992-08-01

182

Towards intelligent environments: an augmented reality-brain-machine interface operated with a see-through head-mount display.  

PubMed

The brain-machine interface (BMI) or brain-computer interface is a new interface technology that uses neurophysiological signals from the brain to control external machines or computers. This technology is expected to support daily activities, especially for persons with disabilities. To expand the range of activities enabled by this type of interface, here, we added augmented reality (AR) to a P300-based BMI. In this new system, we used a see-through head-mount display (HMD) to create control panels with flicker visual stimuli to support the user in areas close to controllable devices. When the attached camera detects an AR marker, the position and orientation of the marker are calculated, and the control panel for the pre-assigned appliance is created by the AR system and superimposed on the HMD. The participants were required to control system-compatible devices, and they successfully operated them without significant training. Online performance with the HMD was not different from that using an LCD monitor. Posterior and lateral (right or left) channel selections contributed to operation of the AR-BMI with both the HMD and LCD monitor. Our results indicate that AR-BMI systems operated with a see-through HMD may be useful in building advanced intelligent environments. PMID:21541307

Takano, Kouji; Hata, Naoki; Kansaku, Kenji

2011-01-01

183

Optimal use of human and machine resources for Space Station assembly operations  

NASA Technical Reports Server (NTRS)

This paper investigates the issues involved in determining the best mix of human and machine resources for assembly of the Space Station. It presents the current Station assembly sequence, along with descriptions of the available assembly resources. A number of methodologies for optimizing the human/machine tradeoff problem have been developed, but the Space Station assembly offers some unique issues that have not yet been addressed. These include a strong constraint on available EVA time for early flights and a phased deployment of assembly resources over time. A methodology for incorporating the previously developed decision methods to the special case of the Space Station is presented. This methodology emphasizes an application of multiple qualitative and quantitative techniques, including simulation and decision analysis, for producing an objective, robust solution to the tradeoff problem.

Parrish, Joseph C.

1988-01-01

184

Phase 5 storage (Project W-112) Central Waste Complex operational readiness review, final report  

SciTech Connect

This document is the final report for the RFSH conducted, Contractor Operational Readiness Review (ORR) for the Central Waste Complex (CWC) Project W-112 and Interim Safety Basis implementation. As appendices, all findings, observations, lines of inquiry and the implementation plan are included.

Wight, R.H.

1997-05-30

185

Green Sturgeon, Longfin smelt, and dredging operations in the San Francisco Estuary FINAL AGENDA  

E-print Network

Green Sturgeon, Longfin smelt, and dredging operations in the San Francisco Estuary FINAL AGENDA for Dredged Material 9:15-9:20 Ellen Johnck (Bay Planning Coalition) Welcome 9:20-9:30 Len Cardoza (Weston Solutions) Stakeholder perspective 9:30-9:45 David Woodbury (NMFS) Risk to green sturgeon from dredging

186

Knowledge-based systems for electric utility operation using the PROLOG language: Final report  

Microsoft Academic Search

The objective of this research project was to investigate the desirability of developing knowledge based systems in the PROLOG, PROgramming in LOGic, language for electric utility system operation applications. Two major steps were completed to achieve this objective. The first step was to develop a protection system simulator and diagnostican in the PROLOG language. Finally, a demonstration volt\\/VAR dispatch knowledge

Tweed

1988-01-01

187

State revolving fund: Final report to Congress. Financial status and operations of water pollution control revolving funds  

SciTech Connect

This is the final report to Congress. The SRF final report addresses the financial status and operations of water pollution control revolving funds established by the States under Title VI of the Clean Water Act (CWA).

Not Available

1991-10-01

188

Applying group technology in the operational planning of electronics assembly (multiple machine case)  

E-print Network

This research investigates the operational planning problem for electronics assembly. The objective is to develop an analytical tool that is capable of performing the operational planning of Printed Circuit Board (PCB) assembly for a defined batch...

Awwad, Ghassan Samir

1987-01-01

189

Method and radial gap machine for high strength undiffused brushless operation  

DOEpatents

A radial gap brushless electric machine (30) having a stator (31) and a rotor (32) and a main air gap (34) also has at least one stationary excitation coil (35a, 36a) separated from the rotor (32) by a secondary air gap (35e, 35f, 36e, 36f) so as to induce a secondary flux in the rotor (32) which controls a resultant flux in the main air gap (34). Permanent magnetic (PM) material (38) is disposed in spaces between the rotor pole portions (39) to inhibit the second flux from leaking from the pole portions (39) prior to reaching the main air gap (34). By selecting the direction of current in the stationary excitation coil (35a, 36a) both flux enhancement and flux weakening are provided for the main air gap (34). A method of non-diffused flux enhancement and flux weakening for a radial gap machine is also disclosed.

Hsu, John S.

2006-10-31

190

The SALT HRS spectrograph: final design, instrument capabilities, and operational modes  

NASA Astrophysics Data System (ADS)

The high-resolution chelle spectrograph, SALT HRS, is at an advanced stage of construction and will shortly become available to the user community of the Southern African Large Telescope (SALT). This paper presents a commentary on the construction progress to date and gives the instrument's final specification with refined estimates for its performance based on the initial testing of the optics and the science-grade detectors. It also contributes a discussion of how the fibre input optics have been tailored to specific scientific aspirations to give four distinct operational modes. Finally, the use of the instrument is discussed in the context of the most common science cases.

Bramall, D. G.; Sharples, R.; Tyas, L.; Schmoll, J.; Clark, P.; Luke, P.; Looker, N.; Dipper, N. A.; Ryan, S.; Buckley, D. A. H.; Brink, J.; Barnes, S. I.

2010-07-01

191

Calculating machines  

NSDL National Science Digital Library

This website created by Erez Kaplan "deals mainly with the mechanical calculating machines from a collector's point of view." Included here is an historical review of calculating machines, along with Kaplan's attempt to classify the machines, a collection of old advertisements for the machines, and a brief history of calculating. The latest feature is a Java applet that lets you operate an 1885 Felt adding machine to give you a sense of the way it was used. The photos and descriptions provide insight on other gadgets such as the Pocket Cash Registers used by "the sophisticated man or woman of 1900 who had everything." The Reference section provides some resources for further reading, including numerous other personal calculator collectors sites and museums.

192

Inducing ? oscillations and precise spike synchrony by operant conditioning via brain-machine interface.  

PubMed

Neural oscillations in the low-gamma range (30-50 Hz) have been implicated in neuronal synchrony, computation, behavior, and cognition. Abnormal low-gamma activity, hypothesized to reflect impaired synchronization, has been evidenced in several brain disorders. Thus, understanding the relations between gamma oscillations, neuronal synchrony and behavior is a major research challenge. We used a brain-machine interface (BMI) to train monkeys to specifically increase low-gamma power in selected sites of motor cortex to move a cursor and obtain a reward. The monkeys learned to robustly generate oscillatory gamma waves, which were accompanied by a dramatic increase of spiking synchrony of highly precise spatiotemporal patterns. The findings link volitional control of LFP oscillations, neuronal synchrony, and the behavioral outcome. Subjects' ability to directly modulate specific patterns of neuronal synchrony provides a powerful approach for understanding neuronal processing in relation to behavior and for the use of BMIs in a clinical setting. PMID:23352171

Engelhard, Ben; Ozeri, Nofar; Israel, Zvi; Bergman, Hagai; Vaadia, Eilon

2013-01-23

193

Columbia River System Operation Review : Final Environmental Impact Statement, Main Report Exhibits.  

SciTech Connect

This Volume is a part of the Final Environmental Impact Statement (EIS) for the Columbia River System. This volume contains technical exhibits of cultural resources and commentary on the (System Operation Review) SOR process. The Confederated Tribes of the Umatilla Indian Reservation comment is the majority of the material in the volume, in the Consultation Plan, Identification of trust resources; Criteria for the selection of a System Operating Strategy; comment on rights protection and implementation of Federal Trust responsibility; analysis of the draft EIS. Comment by other Native American Tribes and groups is also included: Confederated Tribes of the Colville Reservation; Kootenai Tribe of Idaho; Spokane Tribe of Indians; Coeur d` Alene tribe.

Columbia River System Operation Review (U.S.)

1995-11-01

194

Columbia River System Operation Review : Final Environmental Impact Statement, Main Report.  

SciTech Connect

The System Operation Review (SOR) Final EIS addresses four actions: (a) need to develop coordinated strategy for managing the multiple uses of the Federal Columbia River system (System Operating Strategy [SOS]); (b) need to provide interested parties other than management agencies with a long-term role in system planning (Forum); (c) need to renew or change current Canadian Entitlement Allocation Agreements (CEAA); and (d) need to renegotiate and renew the Pacific Northwest Coordination Agreement (PNCA). SOS alternatives analyzed are: (1) operation prior to Endangered Species Act listings of salmon stocks; (2) current operations (no action); (3) stable storage project operation; (4) natural river operation; (5) fixed drawdown; (6) operating strategies proposed by the U.S. Fish and Wildlife Service, National Marine Fisheries Service, State fisheries agencies, Native American tribes, and Federal operating agencies; and (7) Preferred Alternative. The seven Forum alternatives analyzed are: (1) decisionmaking by the SOR lead agencies (preferred alternative); (2) decisionmaking by SOR lead agencies and recommendations by an existing regional entity; (3) decisionmaking by SOR lead agencies and recommendations by a new regional entity; (4) decisionmaking by a Federal consultation forum; (5) decisionmaking by a new entity; (6) decisionmaking by one Federal operating agency; (7) decisionmaking by a Federal agency other than an operating agency. PNCA alternatives analyzed are: (1) no replacement contract; (2) contract to maximize regional power benefits; (3) roll over existing PNCA; (4) current PNCA with modified operating procedures (preferred alternative); (5) current PNCA with nonpower modifications. CEAA alternatives include: (1) no action (no replacement of current allocation agreements); (2) entitlement allocation: 55 percent Federal; 45 percent non-Federal; (3) entitlement allocation: 70 percent Federal, 30 percent non-Federal (preferred alternative); (4) no agreement.

Columbia River System Operation Review (U.S.); United States. Bonneville Power Administration; United States. Army. Corps of Engineers. North Pacific Division; United States. Bureau of Reclamation. Pacific Northwest Region.

1995-11-01

195

Precision Machining  

NSDL National Science Digital Library

Basic machining processes are introduced on a Web site that is devoted to engineering fundamentals (1). Descriptions and illustrations of drilling, turning, grinding, and other common processes are provided for people with little to no prior machining knowledge. A waterjet is a non-traditional machining technology that uses high pressure streams of water with abrasive additives rather than solid cutting instruments to slice through metal and other materials. An in-depth discussion of waterjet operation and applications is available from Southern Methodist University (2). Waterjets are often cited as being much more precise than traditional machining techniques. The Waterjet Video Vault (3) contains clips of waterjet machines in action. The video of the foam cutting procedure is especially interesting, as it shows how quick and accurate the machining process can be. An online guide to cross process machining, which incorporates elements from various conventional and unconventional techniques, is provided by the Mechanical Engineering Department at Columbia University (4). Some remarkable and innovative techniques that have surfaced over the past few years are outlined, including underwater laser machining and plasma-assisted machining. Entirely different and exotic machining techniques are required for creating microelectromechanical systems (MEMS) and other extremely small devices. The Caltech Micromachining Laboratory (5) maintains an archive of research highlights and papers on its homepage, including a paper on a MEMS-driven flapping wing for a palm-sized aerial vehicle. An online article from Modern Machine Shop (6) outlines some new technologies and research in the area of high speed machining. A particularly interesting section of the article describes a system developed at the University of Florida that aims to enable micromachining to achieve rotational speeds of standard machining processes, specifically up to a half million rotations per minute. Cutting edge waterjet innovations are the subject of a February 2003 feature from a publication of the Society of Manufacturing Engineers (7). Extremely high pressure nozzles are being developed to improve cutting speed, and enhanced software for controlling machine movements is also a focus of study. This news article (8) from June 20, 2003 describes an electrochemical machining process that is being used to fabricate complex nanostructures. The work, produced by German and U.S. researchers, has the potential to compete with current lithographic processes.

Leske, Cavin.

196

Simple Machines  

NSDL National Science Digital Library

This series of three interactive, multimedia activities introduce and demonstrate the properties of six simple machines. Specifically, the lessons show how levers, pulleys, inclined planes, screws, wheels and axles, and wedges can reduce the amount of work done by humans. After learning about the characteristics of each classification, users can try to find the simple machines that make up a lawn mower. By inspecting the mower from different angles, several simple machines are revealed and must be identified. The final activity lets users test their knowledge of the mechanics of simple machines. Following a builder through each stage of constructing a tree house, users can apply equations to determine the mechanical advantage supplied by using the tools.

197

The Buttonhole Machine. Module 13.  

ERIC Educational Resources Information Center

This module on the bottonhole machine, one in a series dealing with industrial sewing machines, their attachments, and operation, covers two topics: performing special operations on the buttonhole machine (parts and purpose) and performing special operations on the buttonhole machine (gauged buttonholes). For each topic these components are

South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

198

A Brain-Machine Interface Operating with a Real-Time Spiking Neural Network Control Algorithm.  

PubMed

Motor prostheses aim to restore function to disabled patients. Despite compelling proof of concept systems, barriers to clinical translation remain. One challenge is to develop a low-power, fully-implantable system that dissipates only minimal power so as not to damage tissue. To this end, we implemented a Kalman-filter based decoder via a spiking neural network (SNN) and tested it in brain-machine interface (BMI) experiments with a rhesus monkey. The Kalman filter was trained to predict the arm's velocity and mapped on to the SNN using the Neural Engineering Framework (NEF). A 2,000-neuron embedded Matlab SNN implementation runs in real-time and its closed-loop performance is quite comparable to that of the standard Kalman filter. The success of this closed-loop decoder holds promise for hardware SNN implementations of statistical signal processing algorithms on neuromorphic chips, which may offer power savings necessary to overcome a major obstacle to the successful clinical translation of neural motor prostheses. PMID:25309106

Dethier, Julie; Nuyujukian, Paul; Eliasmith, Chris; Stewart, Terry; Elassaad, Shauki A; Shenoy, Krishna V; Boahen, Kwabena

2011-01-01

199

29 CFR 570.61 - Occupations in the operation of power-driven meat-processing machines and occupations involving...  

Code of Federal Regulations, 2014 CFR

...and jawpullers; skinning machines; horizontal rotary washing machines; casing-cleaning...small capacity, portable, countertop mixers discussed in 570.62(b)(1) of this chapter when used as a mixer to process materials other than...

2014-07-01

200

29 CFR 570.61 - Occupations in the operation of power-driven meat-processing machines and occupations involving...  

Code of Federal Regulations, 2013 CFR

...and jawpullers; skinning machines; horizontal rotary washing machines; casing-cleaning...small capacity, portable, countertop mixers discussed in 570.62(b)(1) of this chapter when used as a mixer to process materials other than...

2013-07-01

201

29 CFR 570.61 - Occupations in the operation of power-driven meat-processing machines and occupations involving...  

Code of Federal Regulations, 2011 CFR

...and jawpullers; skinning machines; horizontal rotary washing machines; casing-cleaning...small capacity, portable, countertop mixers discussed in 570.62(b)(1) of this chapter when used as a mixer to process materials other than...

2011-07-01

202

29 CFR 570.61 - Occupations in the operation of power-driven meat-processing machines and occupations involving...  

Code of Federal Regulations, 2012 CFR

...and jawpullers; skinning machines; horizontal rotary washing machines; casing-cleaning...small capacity, portable, countertop mixers discussed in 570.62(b)(1) of this chapter when used as a mixer to process materials other than...

2012-07-01

203

AMBIENT PERCHLOROETHYLENE LEVELS INSIDE COIN-OPERATED LAUNDRIES WITH DRYCLEANING MACHINES ON THE PREMISES  

EPA Science Inventory

In this study, ambient perchloroethylene (PERC) levels were measured inside and in the vicinity of six self serve laundries containing coin-type dry cleaning operations. Inside two of the laundries, evaluations of organic vapor monitoring badges were performed in addition to the ...

204

Extreme learning machines for predicting operation disruption events in railway systems  

E-print Network

- nostic event data, the proposed approach was capable of predicting 98% of the operation disruption events of reliability prediction, fault diagnosis and prognosis are either model- and rule-based or they are data data. The use of event data is limited, especially for predicting failures in railway systems

Paris-Sud XI, Universit de

205

Women, Men, and Machines.  

ERIC Educational Resources Information Center

Data from the first national study of technological change show that proportionately more women than men operate machines, are more exposed to machines that have alienating effects, and suffer more from the negative effects of technological change. (Author/SSH)

Form, William; McMillen, David Byron

1983-01-01

206

Dynamic analysis of a flexure-based mechanism for precision machining operation  

Microsoft Academic Search

This paper presents the dynamic modelling and performance evaluation methodologies of a flexure-base mechanism for ultra-precision grinding operations. The mechanical design of the mechanism is briefly described. A piezoelectric actuator is used to drive the moving platform. A flexure-based structure is utilized to guide the moving platform and to provide preload for the piezoelectric actuator. By simplifying the Hertzian contact

Yanling Tian; Dawei Zhang; Bijan Shirinzadeh

2010-01-01

207

An Evaluation of the Effectiveness of the Allen Teaching Machine at the Federal Correctional Institution, Lompoc, California. Final Report.  

ERIC Educational Resources Information Center

This study evaluated the use of the Allen group teaching machines in a basic skills program (arithmetic, language arts, General Educational Development preparation) at the Federal Correctional Institution (FCI), Lompoc, California. Out of 317 eligible inmates, 172 enrolled. The evaluator interviewed inmates, teachers, and prison administrators,

Ross, Harvey L.

208

Final Report of the Catalog Code Revision Committee Subcommittee on Rules for Cataloging Machine-Readable Data Files.  

ERIC Educational Resources Information Center

A committee on rules fur cataloging machine readable data files (MRDF) recommends areas for revision of the Anglo American Cataloging Rules to integrate collections of MRDF into the mainstream of bibliographic control. The 12 working papers which support and detail these recommendations are appended to this report. They include rationales for

Herman, Elizabeth, Ed.; Byrun, John, Ed.

209

Robust Data-Driven Modeling Approach for Real-Time Final Product Quality Prediction in Batch Process Operation  

Microsoft Academic Search

Making on-specification products is a primary goal, and also a challenge in chemical batch process operation. Due to the uncertainty of raw materials and instability of operating con- ditions, it may not produce the desired on-spec final product. It would be helpful if one can predict the product quality during each operation, so that one can make adjustments to process

David Wang

2011-01-01

210

Phase 3 Final Topical Report for the Remote Operated Vehicle with C02 Blasting (ROVCO2)  

SciTech Connect

This report documents the third and final phase of the Remote Operated Vehicle with CO2 Blasting (ROVCO2) Program. The Program=s goal is to develop and demonstrate a tool to improve the productivity of concrete floor decontamination. In Phase 3 of the ROVCO2 program, the workhead and the COYOTEE end-effector were redesigned, and effectiveness and productivity tests were performed. This report documents the development activities. The results show that the ROVCO2 system is an efficient decontamination tool, but with relatively slow production rates.

None

1998-04-14

211

The Operation of Vega/chara: from the Scientific Idea to the Final Products  

NASA Astrophysics Data System (ADS)

We describe the data flow in the operation of the VEGA/CHARA instrument. After a brief summary of the main characteristics and scientific objectives of the VEGA instrument, we explain the standard procedure from the scientific idea up to the execution of the observation. Then, we describe the different steps done after the observation, from the raw data to the archives and the final products. Many tools are used and we show how the Virtual Observatory principles have been implemented for the interoperability of these software and databases.

Ligi, R.; Mourard, D.; Nardetto, N.; Clausse, J.-M.

212

Validating cognitive support for operators of complex human-machine systems  

SciTech Connect

Modem nuclear power plants (NPPs) are complex systems whose performance is the result of an intricate interaction of human and system control. A complex system may be defined as one which supports a dynamic process involving a large number of elements that interact in many different ways. Safety is addressed through defense-in-depth design and preplanning; i.e., designers consider the types of failures that are most likely to occur and those of high consequence, and design their solutions in advance. However, complex interactions and their failure modes cannot always be anticipated by the designer and may be unfamiliar to plant personnel. These situations may pose cognitive demands on plant personnel, both individually and as a crew. Other factors may contribute to the cognitive challenges of NPP operation as well, including hierarchal processes, dynamic pace, system redundancy and reliability, and conflicting objectives. These factors are discussed in this paper.

O`Hara, J. [Brookhaven National Lab., Upton, NY (United States); Wachtel, J. [US Nuclear Regulatory Commission, Washington, DC (United States)

1995-10-01

213

MACHINE MONITORING USING PROBABILITY THRESHOLDS  

E-print Network

MACHINE MONITORING USING PROBABILITY THRESHOLDS AND SYSTEM OPERATING CHARACTERISTICS Stephen M a discrete-part production machine, with the objective of effectively determining when to shut the machine analysis: a) There is an underlying time interval that characterizes the operation of the machine, most

Pollock, Stephen

214

The Knife Machine. Module 15.  

ERIC Educational Resources Information Center

This module on the knife machine, one in a series dealing with industrial sewing machines, their attachments, and operation, covers one topic: performing special operations on the knife machine (a single needle or multi-needle machine which sews and cuts at the same time). These components are provided: an introduction, directions, an objective,

South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

215

Individual and work related factors associated with symptoms of musculoskeletal complaints. II. Different risk factors among sewing machine operators.  

PubMed

Individual and work related risk factors in the development of occupational musculoskeletal complaints were studied in a group of 210 female production workers, mainly sewing machine operators. Another group of 35 female employees performing secretarial or laboratory duties were also included. The production workers had significantly higher symptom scores with respect to self reported musculoskeletal complaints than the group with more varied work tasks for the head, neck, shoulders, and arms, but not for the low back, hips, and the lower extremities. No significant differences were found in symptom level between geographically separate groups of production workers with similar work tasks. The main individual risk factor identified in this study was the experience of previous, similar symptoms in the same body region, but this factor only accounted for 2-3% of total variance in symptom score for the neck and shoulders. Other individual factors of importance for symptoms in the neck and shoulders were "signs of psychological problems" and "tendency of muscle tension," but these only account for about 1% of total variance in symptom score. Symptoms in the head and low back showed complex relations with individual parameters. PMID:1554612

Westgaard, R H; Jansen, T

1992-03-01

216

Drilling Machines: Vocational Machine Shop.  

ERIC Educational Resources Information Center

The lessons and supportive information in this field tested instructional block provide a guide for teachers in developing a machine shop course of study in drilling. The document is comprised of operation sheets, information sheets, and transparency masters for 23 lessons. Each lesson plan includes a performance objective, material and tools,

Thomas, John C.

217

Your Sewing Machine.  

ERIC Educational Resources Information Center

The programed instruction manual is designed to aid the student in learning the parts, uses, and operation of the sewing machine. Drawings of sewing machine parts are presented, and space is provided for the student's written responses. Following an introductory section identifying sewing machine parts, the manual deals with each part and its

Peacock, Marion E.

218

Advanced technology and manufacturing practices for machining and inspecting metal matrix composites. Final CRADA report for CRADA number Y-1292-0092  

SciTech Connect

Lockheed Martin Energy Systems, Inc. (Energy Systems) and the Lanxide Corporation (Lanxide) negotiated a Cooperative Research and Development Agreement (CRADA) to develop advanced technology and manufacturing practices for machining and inspecting metal matrix composites (MMC). The objective of this CRADA was to develop machining parameters to allow manufacturing of automotive components from MMCs. These parts exhibit a range of shapes and dimensional tolerances and require a large number of machining operations. The common characteristic of the components is the use of the light weight MMC materials to replace heavier materials. This allows smaller and lighter moving parts and supporting structural components thereby increasing fuel mileage. The CRADA was divided into three areas: basic investigation of cutting parameters, establishment of a mock production line for components, and optimization of parameters in the mock facility. This report covers the manufacturing of MMCs and preliminary Phase I testing for silicon carbide having various loading percentages and extensive Phase I testing of cutting parameters on 30% alumina loaded aluminum. On January 26, 1995, a letter from the vice president, technology at Lanxide was issued terminating the CRADA due to changes in business. 9 refs., 18 figs., 3 tabs.

Fell, H.A.; Shelton, J.E.; LaMance, G.M.; Kennedy, C.R.

1995-02-26

219

A study on the machining-parameters optimization of wire electrical discharge machining  

Microsoft Academic Search

A suitable selection of machining parameters for the wire electrical discharge machining (WEDM) process relies heavily on the operators' technologies and experience because of their numerous and diverse range. Machining-parameters tables provided by the machine-tool builder can not meet the operators' requirements, since for an arbitrary desired roughness of the machining surface, they do not provide the optimal machining conditions.

Y. S. Liao; J. T. Huang; H. C. Su

1997-01-01

220

Analysis of a display and control system man-machine interface concept. Volume 1: Final technical report  

NASA Technical Reports Server (NTRS)

An evaluation was made of the feasibility of utilizing a simplified man machine interface concept to manage and control a complex space system involving multiple redundant computers that control multiple redundant subsystems. The concept involves the use of a CRT for display and a simple keyboard for control, with a tree-type control logic for accessing and controlling mission, systems, and subsystem elements. The concept was evaluated in terms of the Phase B space shuttle orbiter, to utilize the wide scope of data management and subsystem control inherent in the central data management subsystem provided by the Phase B design philosophy. Results of these investigations are reported in four volumes.

Karl, D. R.

1972-01-01

221

Machine learning-based receiver operating characteristic (ROC) curves for crisp and fuzzy classification of DNA microarrays in cancer research  

PubMed Central

Receiver operating characteristic (ROC) curves were generated to obtain classification area under the curve (AUC) as a function of feature standardization, fuzzification, and sample size from nine large sets of cancer-related DNA microarrays. Classifiers used included k nearest neighbor (kNN), nive Bayes classifier (NBC), linear discriminant analysis (LDA), quadratic discriminant analysis (QDA), learning vector quantization (LVQ1), logistic regression (LOG), polytomous logistic regression (PLOG), artificial neural networks (ANN), particle swarm optimization (PSO), constricted particle swarm optimization (CPSO), kernel regression (RBF), radial basis function networks (RBFN), gradient descent support vector machines (SVMGD), and least squares support vector machines (SVMLS). For each data set, AUC was determined for a number of combinations of sample size, total sum[?log(p)] of feature t-tests, with and without feature standardization and with (fuzzy) and without (crisp) fuzzification of features. Altogether, a total of 2,123,530 classification runs were made. At the greatest level of sample size, ANN resulted in a fitted AUC of 90%, while PSO resulted in the lowest fitted AUC of 72.1%. AUC values derived from 4NN were the most dependent on sample size, while PSO was the least. ANN depended the most on total statistical significance of features used based on sum[?log(p)], whereas PSO was the least dependent. Standardization of features increased AUC by 8.1% for PSO and -0.2% for QDA, while fuzzification increased AUC by 9.4% for PSO and reduced AUC by 3.8% for QDA. AUC determination in planned microarray experiments without standardization and fuzzification of features will benefit the most if CPSO is used for lower levels of feature significance (i.e., sum[?log(p)] ~ 50) and ANN is used for greater levels of significance (i.e., sum[?log(p)] ~ 500). When only standardization of features is performed, studies are likely to benefit most by using CPSO for low levels of feature statistical significance and LVQ1 for greater levels of significance. Studies involving only fuzzification of features should employ LVQ1 because of the substantial gain in AUC observed and low expense of LVQ1. Lastly, PSO resulted in significantly greater levels of AUC (89.5% average) when feature standardization and fuzzification were performed. In consideration of the data sets used and factors influencing AUC which were investigated, if low-expense computation is desired then LVQ1 is recommended. However, if computational expense is of less concern, then PSO or CPSO is recommended. PMID:19079753

Peterson, Leif E.; Coleman, Matthew A.

2008-01-01

222

Columbia River System Operation Review : Final Environmental Impact Statement, Appendix R: Pacific Northwest Coordination agreement (PNCA).  

SciTech Connect

Currently, the Federal government coordinates the planning and operation of the Federal Columbia River Power System (FCRPS) with projects owned and operated by the region`s non-Federal hydrogenerating utilities pursuant to the Pacific North-west Coordination Agreement (PNCA). The Bureau of Reclamation (Reclamation), the Corps of Engineers (Corps), and the Bonneville Power Administration (BPA) are parties to the PNCA on behalf of the government of the United States. The PNCA is a complex agreement that provides an opportunity for the region`s power producers to maximize the power system`s reliability and economy while meeting their multiple-use objectives. The PNCA does not dictate the operation of the resources it coordinates. It is essentially an accounting mechanism that exchanges the power produced among the parties in order to improve the reliability of the system and reduce regional power costs. Project owners retain complete autonomy to operate as needed to meet their multiple-use requirements. The PNCA was executed in 1964 as an important component of regional plans to maximize the Northwest`s hydro resource capability. Maximization also included the development of storage projects on the Columbia River in Canada pursuant to the terms of the 1964 Columbia River Treaty. Because of the link between power coordination and Treaty issues, the current parties to the PNCA, currently are contemplating entering into a replacement or renewed power coordination agreement. Because the power coordination agreement is a consensual arrangement, its ultimate provisions must be acceptable to all of its signatories. This Appendix R to the Final Environmental Impact Statement of the Columbia River System is a presentation of the Pacific North-west Coordination Agreement.

Columbia River System Operation Review (U.S.)

1995-11-01

223

Columbia River System Operation Review : Final Environmental Impact Statement, Appendix O: Economic and Social Impact.  

SciTech Connect

This Appendix O of the Final Environmental Impact Statement for the Columbia River System measures the economic and social effects of the alternative system operation strategies and includes both geographic and methodology components. Areas discussed in detail include the following: purpose, scope and process; an economic history of the Columbia River Basin and its use today including the Columbia River and Socio-economic development in the Northwest and Major uses of the River System; Analysis procedures and methodologies including national economic evaluation, the concepts, analysis of assumptions, analysis for specific river uses, water quality, Regional evaluation, analysis, and social impacts; alternatives and impacts including implementation costs, andromous fish, resident fish and wildlife, flood control, irrigation and municipal and industrial water supply, navigation impacts, power, recreation, annual costs, regional economic analysis. Extensive comparison of alternatives is included.

Columbia River System Operation Review (U.S.)

1995-11-01

224

National Ignition Facility final optics assembly thermal effects of maintenance operations  

SciTech Connect

The National Ignition Facility (NIF), the world`s most powerful laser system, is being built at Lawrence Livermore National Laboratory (LLNL) to study inertial fusion and high-energy-density science. This billion-dollar facility consists of 192 beams focusing 1.8 MJ on a fusion target. The Final Optics Assembly (FOA), the last mechanical apparatus before the target chamber, converts the light from an incoming frequency of 1 {omega} to ia target-ready 3 {omega}, and focuses the laser beam. The performance of the frequency conversion crystals is very sensitive to temperature changes; crystal temperature must be maintained within a 0.1 C of a nominal temperature prior to a laser shot. Maximizing system availability requires minimizing thermal recovery times after thermal disturbances occurring in both normal and maintenance operations. To guide the design, it is important to have estimates of those recovery times. This report presents Computational Fluid Dynamics (CFD) design calculations to evaluate thermal effects of maintenance operations.

Parietti, L.; Martin, R.A.

1998-04-01

225

Human Factors Assessment: The Passive Final Approach Spacing Tool (pFAST) Operational Evaluation  

NASA Technical Reports Server (NTRS)

Automation to assist air traffic controllers in the current terminal and en route air traff ic environments is being developed at Ames Research Center in conjunction with the Federal Aviation Administration. This automation, known collectively as the Center-TRACON Automation System (CTAS), provides decision- making assistance to air traffic controllers through computer-generated advisories. One of the CTAS tools developed specifically to assist terminal area air traffic controllers is the Passive Final Approach Spacing Tool (pFAST). An operational evaluation of PFAST was conducted at the Dallas/Ft. Worth, Texas, Terminal Radar Approach Control (TRACON) facility. Human factors data collected during the test describe the impact of the automation upon the air traffic controller in terms of perceived workload and acceptance. Results showed that controller self-reported workload was not significantly increased or reduced by the PFAST automation; rather, controllers reported that the levels of workload remained primarily the same. Controller coordination and communication data were analyzed, and significant differences in the nature of controller coordination were found. Controller acceptance ratings indicated that PFAST was acceptable. This report describes the human factors data and results from the 1996 Operational Field Evaluation of Passive FAST.

Lee, Katharine K.; Sanford, Beverly D.

1998-01-01

226

Agile Machining and Inspection Non-Nuclear Report (NNR) Project  

SciTech Connect

This report is a high level summary of the eight major projects funded by the Agile Machining and Inspection Non-Nuclear Readiness (NNR) project (FY06.0422.3.04.R1). The largest project of the group is the Rapid Response project in which the six major sub categories are summarized. This project focused on the operations of the machining departments that will comprise Special Applications Machining (SAM) in the Kansas City Responsive Infrastructure Manufacturing & Sourcing (KCRIMS) project. This project was aimed at upgrading older machine tools, developing new inspection tools, eliminating Classified Removable Electronic Media (CREM) in the handling of classified Numerical Control (NC) programs by installing the CRONOS network, and developing methods to automatically load Coordinated-Measuring Machine (CMM) inspection data into bomb books and product score cards. Finally, the project personnel leaned perations of some of the machine tool cells, and now have the model to continue this activity.

Lazarus, Lloyd

2009-02-19

227

Final Gleason Score Prediction Using Discriminant Analysis and Support Vector Machine Based on Preoperative Multiparametric MR Imaging of Prostate Cancer at 3T  

PubMed Central

Objective. This study aimed at evaluating linear discriminant analysis (LDA) and support vector machine (SVM) classifiers for estimating final Gleason score preoperatively using multiparametric magnetic resonance imaging (mp-MRI) and clinical parameters. Materials and Methods. Thirty-three patients who underwent mp-MRI on a 3T clinical MR scanner and radical prostatectomy were enrolled in this study. The input features for classifiers were age, the presence of a palpable prostate abnormality, prostate specific antigen (PSA) level, index lesion size, and Likert scales of T2 weighted MRI (T2w-MRI), diffusion weighted MRI (DW-MRI), and dynamic contrast enhanced MRI (DCE-MRI) estimated by an experienced radiologist. SVM based recursive feature elimination (SVM-RFE) was used for eliminating features. Principal component analysis (PCA) was applied for data uncorrelation. Results. Using a standard PCA before final Gleason score classification resulted in mean sensitivities of 51.19% and 64.37% and mean specificities of 72.71% and 39.90% for LDA and SVM, respectively. Using a Gaussian kernel PCA resulted in mean sensitivities of 86.51% and 87.88% and mean specificities of 63.99% and 56.83% for LDA and SVM, respectively. Conclusion. SVM classifier resulted in a slightly higher sensitivity but a lower specificity than LDA method for final Gleason score prediction for prostate cancer for this limited patient population. PMID:25544944

Citak-Er, Fusun; Vural, Metin; Acar, Omer; Esen, Tarik; Onay, Aslihan; Ozturk-Isik, Esin

2014-01-01

228

Environmental and organizational factors associated with elbow/forearm and hand/wrist disorder among sewing machine operators of garment industry in Ethiopia.  

PubMed

Occupational health problems related to upper limp musculoskeletal disorders were the major issue among sewing machine operators of garment industries in Ethiopia. The aim of this study was to assess the prevalence and associated risk factors of work related elbow and wrist musculoskeletal disorders among sewing machine operators of garment industries in Galan City, Oromia Regional State. A cross-sectional study was conducted from April 1 to 30, 2012. A total of 422 study subjects were included in this study. Standard Nordic Musculoskeletal Questionnaire was used to collect detailed information on musculoskeletal symptom, sociodemographic data, and factors associated with the problems through face to face interview. From a total of 422 sewing machine operators included in the study 370 (87.7%) were females and 306 (72.5%) were in the age group of <30 years. The prevalence of self-reported work related elbow and wrist musculoskeletal disorders was 40% and 37.7%, respectively. In multivariate analysis, those who had >16 years of service were about five times more likely to develop elbow and wrist musculoskeletal disorders than those who had short (1-5 years) year of services [AOR = 4.7, 95% CI: 1.55-13.02], physical activities [AOR = 5.02, 95% CI: 1.57-16.00], and methods of payment [AOR = 2.01, 95% CI: 1.23-3.28], factors significantly associated with this disorders. Work related elbow and wrist musculoskeletal disorders were high among sewing machine operators in selected garment industries. Moreover, personal and environmental factors were identified as the potential risk factors related to elbow and wrist musculoskeletal disorders among the study group. Therefore, government and the owner of the garment industries should give special attention to prevent and control the problems through proper occupational health and safety policy implementation in the country. PMID:25298780

Kebede Deyyas, Wakjira; Tafese, Ararso

2014-01-01

229

Environmental and Organizational Factors Associated with Elbow/Forearm and Hand/Wrist Disorder among Sewing Machine Operators of Garment Industry in Ethiopia  

PubMed Central

Occupational health problems related to upper limp musculoskeletal disorders were the major issue among sewing machine operators of garment industries in Ethiopia. The aim of this study was to assess the prevalence and associated risk factors of work related elbow and wrist musculoskeletal disorders among sewing machine operators of garment industries in Galan City, Oromia Regional State. A cross-sectional study was conducted from April 1 to 30, 2012. A total of 422 study subjects were included in this study. Standard Nordic Musculoskeletal Questionnaire was used to collect detailed information on musculoskeletal symptom, sociodemographic data, and factors associated with the problems through face to face interview. From a total of 422 sewing machine operators included in the study 370 (87.7%) were females and 306 (72.5%) were in the age group of <30 years. The prevalence of self-reported work related elbow and wrist musculoskeletal disorders was 40% and 37.7%, respectively. In multivariate analysis, those who had >16 years of service were about five times more likely to develop elbow and wrist musculoskeletal disorders than those who had short (15 years) year of services [AOR = 4.7, 95% CI: 1.5513.02], physical activities [AOR = 5.02, 95% CI: 1.5716.00], and methods of payment [AOR = 2.01, 95% CI: 1.233.28], factors significantly associated with this disorders. Work related elbow and wrist musculoskeletal disorders were high among sewing machine operators in selected garment industries. Moreover, personal and environmental factors were identified as the potential risk factors related to elbow and wrist musculoskeletal disorders among the study group. Therefore, government and the owner of the garment industries should give special attention to prevent and control the problems through proper occupational health and safety policy implementation in the country. PMID:25298780

Kebede Deyyas, Wakjira; Tafese, Ararso

2014-01-01

230

Final Report - Advanced MEA's for Enhanced Operating Conditions, Amenable to High Volume Manufacture  

SciTech Connect

This report summarizes the work completed under a 3M/DOE contract directed at advancing the key fuel cell (FC) components most critical for overcoming the polymer electrolyte membrane fuel cell (PEMFC) performance, durability & cost barriers. This contract focused on the development of advanced ion exchange membranes & electrocatalysts for PEMFCs that will enable operation under ever more demanding automotive operating conditions & the use high volume compatible processes for their manufacture. Higher performing & more durable electrocatalysts must be developed for PEMFCs to meet the power density & lifetime hours required for FC vehicles. At the same time the amount of expensive Pt catalyst must be reduced to lower the MEA costs. While these two properties are met, the catalyst must be made resistant to multiple degradation mechanisms to reach necessary operating lifetimes. In this report, we present the work focused on the development of a completely new approach to PEMFC electrocatalyts, called nanostructured thin film (NSTF) catalysts. The carbon black supports are eliminated with this new approach which eliminates the carbon corrosion issue. The thin film nature of the catalyst significantly improves its robustness against dissolution & grain growth, preserving the surface area. Also, the activity of the NSTF for oxygen reduction is improved by over 500% compared to dispersed Pt catalyts. Finally, the process for fabricating the NSTF catalysts is consistent with high volume roll-good manufacturing & extremely flexible towards the introduction of new catalyst compositions & structures. This report documents the work done to develop new multi-element NSTF catalysts with properties that exceed pure Pt, that are optimized for use with the membranes discussed below, & advance the state-of-the-art towards meeting the DOE 2010 targets for PEMFC electrocatalysts. The work completed advances the understanding of the NSTF catalyst technology, identifies new NSTF-ternary catalyst materials for higher performance, documents enhanced durability under multiple types of accelerated tests by factors of 10x to 50x over conventional catalysts, & demonstrates their performance & durability in large area MEA FC stack tests. The PEMFC ion exchange membrane is the other key functioning FC component on which work was completed. While improvements have been made to standard PFSA type membranes, they still require humidification to achieve adequate proton conductivity & so their use at elevated temperatures & drier operating conditions is limited. Membranes with increased durability & conductivity under hotter, drier conditions allow the use of FC's in many applications, particularly automotive. Towards this goal, 2 approaches were pursued in the work reported here. The first part was designed for immediate application at drier conditions & operating temperatures between 85C and 120C, focused on the development of a membrane based on a low equivalent weight (EW), perfluorinated sulfonic acid (PFSA) ionomer for good ionic conductivity at low humidification, & the use of stabilizing additives for improved oxidative stability. The ionomer used was developed at 3M & has a shorter acid containing side-chain than the Nafion ionomer. This ionomer also has a higher T? & higher modulus than that of a Nafion membrane of the same EW, allowing lower EW ionomers to be prepared with very good mechanical properties. In addition, more than 50 stabilizing additives were evaluated in ex-situ, Fentons tests & more than 10 of these were incorporated into membranes & evaluated in accelerated FC tests. This work led to thin (25-30 micron) cast membranes with substantially improved conductivity & durability under simulated automotive conditions, compared to membranes currently available. The 2nd body of membrane work was focused on developing & characterizing 3 approaches for making new PEM's for operation under hot (>120C) & dry (dew point <80C) FC conditions: inorganic materials with enhanced proton conductivity, polymer matrices swollen with lo

Debe, Mark K.

2007-09-30

231

Simple Machines  

NSDL National Science Digital Library

Online Simple Machines Assignment OBJECTIVES: Student\\'s will be able to name and describe all seven simple machines. Students will be able to identify simple machines that they use everyday. Example: Clock = Gear INSTRUCTIONS: 1. Click on the Simple Machines Glossary page and familiarize yourself with the seven simple machines. Simple Machines Glossary Page 2. Students are to click on ...

Mr. Oldroyd

2007-09-26

232

The Chainstitch Machine. Module 18.  

ERIC Educational Resources Information Center

This module on the chainstitch machine, one in a series dealing with industrial sewing machines, their attachments, and operation, covers one topic: performing special operations on the chainstitch machine. These components are provided: an introduction, directions, an objective, learning activities, student information, a student self-check, and

South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

233

8. VIEW OF THE MACHINE SHOP. BY 1966, THE MACHINE ...  

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

8. VIEW OF THE MACHINE SHOP. BY 1966, THE MACHINE SHOP HANDLED PRIMARILY STAINLESS STEEL COMPONENTS, WHICH WERE SENT TO THE MACHINE SHOP TO BE FORMED INTO THEIR FINAL SHAPES. (7/24/70) - Rocky Flats Plant, General Manufacturing, Support, Records-Central Computing, Southern portion of Plant, Golden, Jefferson County, CO

234

Dictionary machine (for VLSI)  

SciTech Connect

The authors present the design of a dictionary machine that is suitable for VLSI implementation, and discusses how to realize this implementation efficiently. The machine supports the operations of search, insert, delete, and extractment on an arbitrary ordered set. Each of these operations takes time o(logn), where n is the number of entries present when the operation is performed. Moreover, arbitrary sequences of these instructions can be pipelined through the machine at a constant rate (i.e. independent of n and the capacity of the machine). The time o(logn) is an improvement over previous VLSI designs of dictionary machines which require time o(log n) per operation, where n is the maximum number of keys that can be stored. 10 references.

Ottmann, T.A.; Rosenberg, A.L.; Stockmeyer, L.J.

1982-09-01

235

Assessment and Determination of Basic Competencies Necessary for Utility Operators Utilizing Ground Water Supplies. Part 1. Final Report.  

ERIC Educational Resources Information Center

The document is a final report of a study of the basic competencies required by water utility operators using a ground water source, conducted at Southwest Wisconsin Vocational-Technical Institute from July to August 1974. The overall purpose of the project is to develop a competency-based curriculum model for statewide use in municipal

Southwest Wisconsin Vocational-Technical Inst., Fennimore.

236

Home Entrepreneurship: The Development of Instructional Materials in the Operation of a Small Business from the Home. Final Report.  

ERIC Educational Resources Information Center

The three chapters of this final report present material from a project to develop individualized instructional materials on operating a small business from the home for home economics related occupations. Chapter 1 includes a review of literature appropriate to the project and provides definitions from the literature (and from interviews) for

Weis, Susan F.; O'Brien, Kay S.

237

Cost effective machining and inspection of structural ceramics. CRADA final report for CRADA Number Y-1292-0088  

SciTech Connect

This CRADA supports the objective of demonstrating feasibility and minimizing manufacturing costs associated with the use of ceramic components in a heavy duty diesel engine manufactured by Detroit Diesel Corporation (DDC). Studies were conducted to evaluate existing, known data for ceramic material, and to identify additional data needed to better characterize a valve of ceramic composition. Tests were conducted to provide important information required for redesign of existing metal valves and other engine head components. A vendor was selected by DDC to produce the valve shapes for testing and Lockheed Martin Energy Systems (LMES) provided design modeling/analysis support. The effort also included the development of a bench-test apparatus to simulate the environment of a valve in operation that provided material data and confirmation of analytical results.

Hensley, J.D. [Lockheed Martin Energy Systems, Inc., Oak Ridge, TN (United States); Kalish, Y. [Detroit Diesel Corp., MI (United States)

1996-12-06

238

Weapons of mass destruction in the developing world. What are the operational options. Final report  

Microsoft Academic Search

The proliferation in quantity and quality of weapons of mass destruction serve as a threat of great consequence to U.S. operational forces. Operational options for action are explored within the national military strategy concepts of forward presence, deterrence, and crisis\\/regional contingency response. Three questions and associated issues related to operational art are posed for each concept: (1) what condition must

Minner

1992-01-01

239

Adjustment of wicket gates important to maintaining machine performance  

Microsoft Academic Search

Meeting acceptable variances for final face-to-face clearances between wicket gates is critical to the proper operation of a hydroelectric machine. Accurate adjustment enables water to flow evenly into each section of the runner. It permits wicket gates to open and close as designed, minimizing water loss and leakage, and extends the life of wicket gate linkages. Typically, wicket gates are

Propst

1993-01-01

240

Function Machine  

NSDL National Science Digital Library

This Java activity for the interactive white board (free access with registration) provides learners an opportunity to explore number functions and to predict outcomes. Teachers set the desired function from the drop-down list (double it, halve it, add 1, subtract 1, add 10, or subtract 10) and choose the start number from 1-20. Students are asked to predict the outcome before asking the machine to go. There is an option to hide the function so the teacher can ask students to work out what operation is being used to get from the starting number to the number generated.

2012-07-19

241

Nonlinear Feed Effect in Machining Chatter Analysis  

Microsoft Academic Search

Regenerative chatter is a major limitation to the productivity and quality of machining operations due to the excessive rate of tool wear and scrap parts which are produced. Machining chatter analysis techniques examine the stability of the closed-loop model (force process and machine tool-part structure) of the machining operation to determine the stable process parameter space. Almost all chatter analysis

Robert G. Landers; A. Galip Ulsoy

2008-01-01

242

Shutdown and low-power operation at commercial nuclear power plants in the United States. Final report  

SciTech Connect

The report contains the results of the NRC Staff`s evaluation of shutdown and low-power operations at US commercial nuclear power plants. The report describes studies conducted by the staff in the following areas: Operating experience related to shutdown and low-power operations, probabilistic risk assessment of shutdown and low-power conditions and utility programs for planning and conducting activities during periods the plant is shut down. The report also documents evaluations of a number of technical issues regarding shutdown and low-power operations performed by the staff, including the principal findings and conclusions. Potential new regulatory requirements are discussed, as well as potential changes in NRC programs. A draft report was issued for comment in February 1992. This report is the final version and includes the responses to the comments along with the staff regulatory analysis of potential new requirements.

Not Available

1993-09-01

243

Hospital incinerator operator training course. Volume 2. Presentation slides. Final report  

Microsoft Academic Search

This document is Volume II of a three-volume training course for operators of hospital-waste incinerators. The course provides hospital waste-incinerator operators with a basic understanding of the principles of incineration and air pollution control and to identify good operation and maintenance (O M) practices. Proper O M, in addition to reducing air emissions, improves equipment reliability and performance, prolongs equipment

R. M. Neulicht; L. S. Chaput; D. D. Wallace; M. B. Turner; S. G. Smith

1989-01-01

244

Hospital incinerator operator training course. Volume 1. Student handbook. Final report  

Microsoft Academic Search

This document is Volume I of a three-volume training course for operators of hospital-waste incinerators. The course provides hospital-waste incinerator operators with a basic understanding of the principles of incineration and air pollution control and to identify good operation and maintenance (O M) practices. Proper O M, in addition to reducing air emissions, improves equipment reliability and performance, prolongs equipment

R. M. Neulicht; L. S. Chaput; D. D. Wallace; M. B. Turner; S. G. Smith

1989-01-01

245

[Heat exchange in machine operators and dump truck drivers during the exploitation of gravel and sand in Central Asia].  

PubMed

The study was designed to analyze microclimatic conditions in the cabs of excavating machines and dump trucks during warm and cold seasons and to study their impact on body thermoregulatory processes in excavator and truck drivers. The study findings revealed that microclimate was especially unfavourable during a warm season. Inducators of body thermal state gave evidence that such working conditions generated stresses in thermoregulatory processes. Work during cold seasons caused some body cooling, especially at the beginning of the shift. The data thus obtained enabled one to elaborate health-improving measures aimed at optimization of workplace microclimate, rationalization of work/recreation regimen and drinking habits. PMID:2529190

Babaev, A B; Paraeva, I I

1989-01-01

246

Operational Experiences Tuning the ATF2 Final Focus Optics Towards Obtaining a 37nm Electron Beam IP Spot Size  

SciTech Connect

The primary aim of the ATF2 research accelerator is to test a scaled version of the final focus optics planned for use in next-generation linear lepton colliders. ATF2 consists of a 1.3 GeV linac, damping ring providing low-emittance electron beams (< 12pm in the vertical plane), extraction line and final focus optics. The design details of the final focus optics and implementation at ATF2 are presented elsewhere. The ATF2 accelerator is currently being commissioned, with a staged approach to achieving the design IP spot size. It is expected that as we implement more demanding optics and reduce the vertical beta function at the IP, the tuning becomes more difficult and takes longer. We present here a description of the implementation of the tuning procedures and describe operational experiences and performances.

White, Glen; /SLAC; Seryi, Andrei; /SLAC; Woodley, Mark; /SLAC; Bai, Sha; /Beijing, Inst. High Energy Phys.; Bambade, Philip; /Orsay, LAL; Renier, Yves; /Orsay, LAL; Bolzon, Benoit; /Annecy, LAPP; Kamiya, Yoshio; /Tokyo U., ICEPP; Komamiya, Sachio; /Tokyo U.; Oroku, Masahiro; /Tokyo U.; Yamaguchi, Yohei; /Tokyo U.; Yamanaka, Takashi; /Tokyo U.; Kubo, Kiyoshi; /KEK, Tsukuba; Kuroda, Shigeru; /KEK, Tsukuba; Okugi, Toshiyuki; /KEK, Tsukuba; Tauchi, Toshiaki; /KEK, Tsukuba; Marin, Eduardo; /CERN

2012-07-06

247

Control Room operations: an investigation of the task of the operator in a Colliery Control Room. Final report  

SciTech Connect

A detailed study of the ergonomics aspects of four representative Colliery Control Rooms was carried out. Numerous ergonomics limitations, many common to each of the control rooms studied, were identified particularly in relation to workspace dimensions, console layout and lighting. In order to overcome these limitations in future designs, a report detailing the Ergonomics Principles of Colliery Control Room design and Layout was prepared on the basis of the information obtained. Task analysis carried out during the studies revealed that control room operators could have a direct effect on production and that ergonomics aspects were involved in these situations. Indications of potential ergonomics problems in the wider sphere of job design were also identified particularly in relation to information handling.

Simpson, G.C.; Best, C.F.; Ferguson, C.A.; Graveling, R.A.; Nicholl, A.G.M.

1982-09-01

248

Progress in Documentation: Machine Translation and Machine-Aided Translation.  

ERIC Educational Resources Information Center

Discusses the prospects for fully automatic machine translation of good quality. Sections include history and background, operational and experimental machine translation systems of recent years, descriptions of interactive systems and machine-assisted translation, and a general survey of present problems and future possibilities. (VT)

Hutchins, W. J.

1978-01-01

249

Tool allocation and machining conditions optimization for CNC machines  

Microsoft Academic Search

In the literature, there exist many variations of machining economics problem in terms of modelling approaches and solution methodologies. However most of the existing studies focus on the single machining operation which is seldom in practice. On the other hand, tool management approaches at the system level fail to relate the tooling issues to the machining conditions, and ignore the

M. Selim Akturk; Selcuk Avci

1996-01-01

250

Regional nuclear proliferation and future conflict: Implications for the operational commander. Final report  

Microsoft Academic Search

The end of the Cold War is thought to signal a watershed in American military thought, allowing the practical application of operational art in conventional conflict, unshackled by the doctrine of the strategic defensive imposed by the nuclear stalemate of a bipolar world. This thesis is proven by the success of the U.S.-led coalition in Operation DESERT STORM. But what

Swicker

1995-01-01

251

Phase 3 of a Brushless Doubly-Fed Machine System Development Program : Final Technical Report for Period January 1, 1992-June 30, 1993.  

SciTech Connect

Since the inception of the BDFM development program in 1989, the value of BDFM technology has become apparent. The BDFM provides for adjustable speed, synchronous operation while keeping costs associated with the required power conversion equipment lower than in competing technologies. This provides for an advantage in initial as well as maintenance expenses over conventional drive system. Thus, the BDFM enables energy efficient, adjustable speed process control for applications where established drive technology has not been able to deliver satisfactory returns on investment. At the same time, the BDFM challenges conventional drive technologies in established markets by providing for improved performance at lower cost. BDFM converter rating is kept at a minimum, which significantly improves power quality at the utility interface over competing power conversion equipment. In summary, BDFM technology can be expected to provide significant benefits to utilities as well as their customers. This report discusses technical research and development activities related to Phase 3 of the Brushless Doubly-Fed Machine System Development Program, including work made possible by supplemental funds for laboratory improvement and prototype construction. Market research for the BDFM was provided by the College of Business at Oregon State University; market study results will be discussed in a separate report.

Alexander, Gerald C.; Spee, Rene; Wallace, Alan K.

1993-12-31

252

Hospital incinerator operator training course. Volume 2. Presentation slides. Final report  

SciTech Connect

This document is Volume II of a three-volume training course for operators of hospital-waste incinerators. The course provides hospital waste-incinerator operators with a basic understanding of the principles of incineration and air pollution control and to identify good operation and maintenance (O M) practices. Proper O M, in addition to reducing air emissions, improves equipment reliability and performance, prolongs equipment life, and helps to ensure proper ash burnout. Volume II contains classroom materials including a copy of the presentation slides so that students can follow along during the class and worksheets that can be completed during the classroom sessions. The course includes 11 separate classroom sessions covering topics such as basic combustion principles and incinerator design; air pollution control equipment design, function, operation, and monitoring; incinerator operation; maintenance inspections; typical problems; and State regulations.

Neulicht, R.M.; Chaput, L.S.; Wallace, D.D.; Turner, M.B.; Smith, S.G.

1989-03-01

253

Human and Machine Intelligence  

Microsoft Academic Search

In his 1950 Mind paper, Alan Turing reframed the question of whether machines could think as an operational or behavioral question: Could a computer be built that was indistinguishable from people in playing the \\

Barbara Grosz; Edward A. Feigenbaum; Marvin Minsky; Judea Pearl; Raj Reddy

2012-01-01

254

Factors Which Influence the Placement of Students Completing Postsecondary Machine Shop Programs in Florida. Final Report from December 15, 1984 to August 31, 1985.  

ERIC Educational Resources Information Center

A study identified and assessed the relative importance of the factors contributing to the placement of students completing postsecondary machine shop programs in Florida. Data were collected from surveys of 1982-1983 program completers and instructors and placement officers at 19 of Florida's 23 postsecondary-level machine shop programs, as well

Massoudi, Shahrokh

255

Hospital incinerator operator training course. Volume 1. Student handbook. Final report  

SciTech Connect

This document is Volume I of a three-volume training course for operators of hospital-waste incinerators. The course provides hospital-waste incinerator operators with a basic understanding of the principles of incineration and air pollution control and to identify good operation and maintenance (O M) practices. Proper O M, in addition to reducing air emissions, improves equipment reliability and performance, prolongs equipment life, and helps to ensure proper ash burnout. The course is not intended to replace site-specific, hands-on training of operators with the specific equipment to be operated. Volume I is narrative in style and can be used as a reference at the completion of the class. Review questions and answers for students are provided at the end of each classroom session. The course includes 11 separate classroom sessions covering topics such as basic combustion principles and incinerator design; air pollution control equipment design, function, operation, and monitoring; incinerator operation; maintenance inspections; typical problems; and State regulations.

Neulicht, R.M.; Chaput, L.S.; Wallace, D.D.; Turner, M.B.; Smith, S.G.

1989-03-01

256

49 CFR 214.341 - Roadway maintenance machines.  

Code of Federal Regulations, 2011 CFR

...qualification of operators of roadway maintenance machines. (2) Establishment and issuance of safety...general application and for specific types of machines. (3) Communication between machine operators and roadway workers assigned to...

2011-10-01

257

49 CFR 214.341 - Roadway maintenance machines.  

Code of Federal Regulations, 2010 CFR

...qualification of operators of roadway maintenance machines. (2) Establishment and issuance of safety...general application and for specific types of machines. (3) Communication between machine operators and roadway workers assigned to...

2010-10-01

258

Columbia River System Operation Review : Final Environmental Impact Statement, Appendix J: Recreation.  

SciTech Connect

This Appendix J of the Final Environmental Impact Statement for the Columbia River System discusses impacts on the recreational activities in the region. Major sections include the following: scope and processes; recreation in the Columbia River Basin today - by type, location, participation, user characteristics, factors which affect usage, and managing agencies; recreation analysis procedures and methodology; and alternatives and their impacts.

Columbia River System Operation Review (U.S.)

1995-11-01

259

Machine Shop Fundamentals: Part I.  

ERIC Educational Resources Information Center

These instructional materials were developed and designed for secondary and adult limited English proficient students enrolled in machine tool technology courses. Part 1 includes 24 lessons covering introduction, safety and shop rules, basic machine tools, basic machine operations, measurement, basic blueprint reading, layout, and bench tools.

Kelly, Michael G.; And Others

260

Evaluation of infrared sensors for oil spill response operations. Final report, October 1994-June 1995  

SciTech Connect

During November 1994, the USCO conducted a field evaluation of several commercially available portable infrared (IR) sensors for their ability to detect oil on water at night. The evaluation was conducted over the natural oil seeps off the coast of Santa Barbara, CA. The portable sensors were operated from the open door of a Coast Guard HH-60J helicopter. Sensors evaluated included the Agema Thermovision 1000 and Texas Instruments LOCUSP operating in the long wave IR (LWIR) and the Cincinnati Electronics IRC-160ST and IRRIS-256ST operating in the medium wave IR (MWIR). The installed FLIR 2000 LWIR system provided a baseline reference of current CG IR capabilities.

Hover, G.L.; Plourde, J.V.

1995-06-01

261

Measurement of Lake Roosevelt Biota in Relation to Reservoir Operations : Final Report 1993.  

SciTech Connect

The purpose of this study was to collect biological data from Lake Roosevelt to be used in the design of a computer model that will predict biological responses to reservoir operations as part of the System Operation Review Program. This study worked in conjunction with Lake Roosevelt Monitoring Project which investigated the effectiveness of two kokanee salmon hatcheries. This report summarized the data collected from Lake Roosevelt from 1993 and includes limnological, reservoir operation, zooplankton, benthic macroinvertebrate, experimental trawling, and net-pen rainbow trout tagging data. Major components of the Lake Roosevelt model include quantification of impacts to zooplankton, benthic macroinvertebrates, and fish caused by reservoir drawdowns and low water retention times.

Voeller, Amy C.

1993-01-01

262

Operational readiness review for the Waste Experimental Reduction Facility. Final report  

SciTech Connect

An Operational Readiness Review (ORR) at the Idaho National Engineering Laboratory`s (INEL`s) Waste Experimental Reduction Facility (WERF) was conducted by EG&G Idaho, Inc., to verify the readiness of WERF to resume operations following a shutdown and modification period of more than two years. It is the conclusion of the ORR Team that, pending satisfactory resolution of all pre-startup findings, WERF has achieved readiness to resume unrestricted operations within the approved safety basis. ORR appraisal forms are included in this report.

Not Available

1993-11-01

263

Collaborative Operations for Personnel Recovery Final Report on DARPA/AFRL  

E-print Network

The Collaborative Operations for Personnel Recovery (Co-OPR) project sought to provide collaborative task support for a Search and Rescue coordination center. The project aimed to create a prototype Personnel Recovery ...

Tate, Austin; Dalton, J; Stader, J; Wickler, G; Hansberger, J

2007-08-31

264

Final report on evaluation of cyclocraft support of oil and gas operations in wetland areas  

SciTech Connect

The cyclocraft is a proven hybrid aircraft, capable of VTOL, lifting heavy and bulky loads, highly controllable, having high safety characteristics and low operating costs. Mission Research Corporation (MRC), under Department of Energy sponsorship, is evaluating the potential use of cyclocraft in the transport of drill rigs, mud, pipes and other materials and equipment, in a cost effective and environmentally safe manner, to support oil and gas drilling, production, and transportation operations in wetland areas. Based upon the results of an earlier parametric study, a cyclocraft design, having a payload capacity of 45 tons and designated H.1 Cyclocraft, was selected for further study, including the preparation of a preliminary design and a development plan, and the determination of operating costs. This report contains all of the results derived from the program to evaluate the use of cyclocraft in the support of oil and gas drilling and production operations in wetland areas.

Eggington, W.J.; Stevens, P.M.; John, C.J.; Harder, B.J.; Lindstedt, D.M.

1994-10-01

265

Night-reconnaissance operations in mission-oriented protective posture. Final memorandum report  

SciTech Connect

Military commanders are concerned about the impact chemical agents may have on operations. This is especially apparent in night reconnaissance operations which frequently require soldiers to wear mission-oriented protective posture, level IV (MOPPIV) for the duration of the mission because of uncertainty about the location of chemical hazards. To evaluate this situation and provide a quantitative estimate of the degradation in performance, eight-reconnaissance tasks were performed in a field environment, at moderate temperatures (52-84F). The tasks included: route reconnaissance, movement to two objectives, air and water samplings, hasty sketches of an objective, emplace a claymore mine, and photography of a target. These operations were performed by several teams who alternated starts while wearing the standard battle dress uniform (BDU) and the MOPPIV ensemble. Individuals were highly motivated, in high physical readiness and psychologically prepared for the operation.

Wick, C.H.; Morrissey, J.A.; Klopcic, J.T.

1987-10-01

266

Final Report on the Operation and Maintenance Improvement Program for Concentrating Solar Power Plants  

Microsoft Academic Search

This report describes the results of a six-year, $6.3 million project to reduce operation and maintenance (O&M) costs at power plants employing concentrating solar power (CSP) technology. Sandia National Laboratories teamed with KJC Operating Company to implement the O&M Improvement Program. O&M technologies developed during the course of the program were demonstrated at the 150-MW Kramer Junction solar power park

Cohen Gilbert E; David W. Kearney; Gregory J. Kolb

1999-01-01

267

Permanent magnet machine and method with reluctance poles and non-identical PM poles for high density operation  

DOEpatents

A method and apparatus in which a stator (11) and a rotor (12) define a primary air gap (20) for receiving AC flux and at least one source (23, 40), and preferably two sources (23, 24, 40) of DC excitation are positioned for inducing DC flux at opposite ends of the rotor (12). Portions of PM material (17, 17a) are provided as boundaries separating PM rotor pole portions from each other and from reluctance poles. The PM poles (18) and the reluctance poles (19) can be formed with poles of one polarity having enlarged flux paths in relation to flux paths for pole portions of an opposite polarity, the enlarged flux paths communicating with a core of the rotor (12) so as to increase reluctance torque produced by the electric machine. Reluctance torque is increased by providing asymmetrical pole faces. The DC excitation can also use asymmetric poles and asymmetric excitation sources. Several embodiments are disclosed with additional variations.

Hsu, John S.

2010-05-18

268

Site operator program final report for fiscal years 1992 through 1996  

SciTech Connect

The Site Operator Program was an electric vehicle testing and evaluation program sponsored by US Department of Energy and managed at the Idaho National Engineering and Environmental Laboratory. The Program`s goals included the field evaluation of electric vehicles in real-world applications and environments; the support of electric vehicle technology advancement; the development of infrastructure elements necessary to support significant electric vehicle use; and increasing the awareness and acceptance of electric vehicles. This report covers Program activities from 1992 to 1996. The Site Operator Program ended in September 1996, when it was superseded by the Field Operations Program. Electric vehicle testing included baseline performance testing, which was performed in conjunction with EV America. The baseline performance parameters included acceleration, braking, range, energy efficiency, and charging time. The Program collected fleet operations data on electric vehicles operated by the Program`s thirteen partners, comprising electric utilities, universities, and federal agencies. The Program`s partners had over 250 electric vehicles, from vehicle converters and original equipment manufacturers, in their operating fleets. Test results are available via the World Wide Web site at http://ev.inel.gov/sop.

Francfort, J.E. [Lockheed Martin Idaho Technologies Co., Idaho Falls, ID (United States). Idaho National Engineering and Environmental Lab.; Bassett, R.R. [Sandia National Labs., Albuquerque, NM (United States); Birasco, S. [Los Angeles Dept. of Water and Power, CA (United States)] [and others

1998-01-01

269

Operational Readiness Review Final Report for Implementation of an Increased Facility Radioactive Source Inventory Limit & Shippingport Fuel 07/2002  

SciTech Connect

An Operational Readiness Review (ORR) was conducted by the US Department of Energy (DOE), Richland Operations Office (RL) to verify that an adequate state of readiness had been achieved for those activities associated with the removal of Shippingport fuel from the 271-T Facility (T Plant) as a Hazard Category 2 nuclear facility and the readiness of T Plant to operate within the revised safety basis (SB) inventory limits. The DOE ORR was conducted in two parts in accordance with the T Plant Operational Readiness Review DOE-RL Plan of Action. The DOE team observed the dry run of the Shippingport fuel removal process, in conjunction with the contractor ORR of June 2002. Autonomously, the DOE Team completed the ORR in July 2002 by determining the adequacy of the contractor's final ORR (CORR); conducting a sampling of T Plant procedures and processes to validate the CORR; and, observation of a dry run that demonstrated the ability of T Plant to seal a Shippingport Spent Fuel Canister. The DOE ORR Team has concluded that T Plant has demonstrated an appropriate state of readiness and recommends the RL Manager authorize Fluor Hanford to implement the revised safety basis (SB) inventory limits and begin Shippingport fuel removal operations as a Hazard Category 2 nuclear facility. The team further concludes that an adequate level of protection for the worker, public health and safety, and the environment is inherent in the T Plant operations. T Plant has demonstrated an enhanced safety culture. Although there is room for improvement in the T Plant operations as represented by the findings and observations annotated in the body of the report, the overall operation has demonstrated a high degree of professionalism and a discipline of operations that bodes well for the current efforts and future endeavors.

RICHINS, C.R.

2002-08-15

270

Shuttle Ground Operations Efficiencies/Technologies (SGOE/T) study. Volume 3: Final presentation material  

NASA Technical Reports Server (NTRS)

Charts used in the Final Phase 1 Oral Briefing at Kennedy Space Center on April 6, 1987, and to the Space Transportation Architecture Study (SPAS) Interim Program Review (IPS-5) held at MSFC on April 8, 1987, are contained. Topics discussed include: identification of existing or new technologies to reduce cost; management approaches; recommendations for research or development of specific technology for future use; and identification of new management techniques.

Scholz, A. L.; Hart, M. T.; Lowry, D. J.

1987-01-01

271

Final Report: Operational Retrieval of Cloud Microphysical Properties Using Combined Measurements by Diverse Instruments  

SciTech Connect

The report on the final phase of the project describes improvements in the ice and liquid cloud retrieval algorithms due to the use of three-parameter particle size distributions in which all three parameters may vary with height, testing of the improved retrievals by comparisons of measured and calculated fluxes, and further improvement in liquid retrievals obtained by adding liquid water path information from the microwave radiometer to radar and visible optical depth information.

Richard T. Austin

2008-06-30

272

Operational experience with optical matching in the SLC Final Focus System  

SciTech Connect

In the SLC Final Focus System, all components of transverse phase-space and the couplings between them must be controlled to minimize the beam size at the interaction point. After summarizing the experimental algorithm and the on-line tuning programs, we present a consistent set of measurements and describe our present understanding of the various contributions to this beam size. 17 refs., 9 figs.

Bambade, P.; Burchat, P.; Burke, D.; Ford, W.; Hawkes, C.; Koska, W.; Kozanecki, W.; Lohse, T.; Mattison, T.; Phinney, N.

1989-01-01

273

Regional nuclear proliferation and future conflict: Implications for the operational commander. Final report  

SciTech Connect

The end of the Cold War is thought to signal a watershed in American military thought, allowing the practical application of operational art in conventional conflict, unshackled by the doctrine of the strategic defensive imposed by the nuclear stalemate of a bipolar world. This thesis is proven by the success of the U.S.-led coalition in Operation DESERT STORM. But what if Iraq had had a deliverable nuclear capability. The operational impact of a nuclear-capable regional predator on U.S. power projection capabilities is examined in the context of three assumptions: (1) Nuclear proliferation into the ranks of the regional powers is inevitable, given the present dynamics of power, politics and economics. (2) Given the concomitant inevitability of United States engagement in future regional conflicts throughout the world, American forces (either unilaterally or as part of a coalition) will eventually have to confront a regional nuclear power. (3) For a variety of reasons, the United States will not elect a nuclear response to such a challenge. Given these assumptions, the impact of a credible, localized nuclear threat on the operational commander is examined, concentrating on the extent to which such a threat might constrain his free exercise of classical operational art.

Swicker, C.C.

1995-02-13

274

Turbine Reliability and Operability Optimization through the use of Direct Detection Lidar Final Technical Report  

SciTech Connect

The goal of this Department of Energy (DOE) project is to increase wind turbine efficiency and reliability with the use of a Light Detection and Ranging (LIDAR) system. The LIDAR provides wind speed and direction data that can be used to help mitigate the fatigue stress on the turbine blades and internal components caused by wind gusts, sub-optimal pointing and reactionary speed or RPM changes. This effort will have a significant impact on the operation and maintenance costs of turbines across the industry. During the course of the project, Michigan Aerospace Corporation (MAC) modified and tested a prototype direct detection wind LIDAR instrument; the resulting LIDAR design considered all aspects of wind turbine LIDAR operation from mounting, assembly, and environmental operating conditions to laser safety. Additionally, in co-operation with our partners, the National Renewable Energy Lab and the Colorado School of Mines, progress was made in LIDAR performance modeling as well as LIDAR feed forward control system modeling and simulation. The results of this investigation showed that using LIDAR measurements to change between baseline and extreme event controllers in a switching architecture can reduce damage equivalent loads on blades and tower, and produce higher mean power output due to fewer overspeed events. This DOE project has led to continued venture capital investment and engagement with leading turbine OEMs, wind farm developers, and wind farm owner/operators.

Johnson, David K; Lewis, Matthew J; Pavlich, Jane C; Wright, Alan D; Johnson, Kathryn E; Pace, Andrew M

2013-02-01

275

Waste Isolation Pilot Plant Title I operator dose calculations. Final report, LATA report No. 90  

SciTech Connect

The radiation exposure dose was estimated for the Waste Isolation Pilot Plant (WIPP) operating personnel who do the unloading and transporting of the transuranic contact-handled waste. Estimates of the radiation source terms for typical TRU contact-handled waste were based on known composition and properties of the waste. The operations sequence for waste movement and storage in the repository was based upon the WIPP Title I data package. Previous calculations had been based on Conceptual Design Report data. A time and motion sequence was developed for personnel performing the waste handling operations both above and below ground. Radiation exposure calculations were then performed in several fixed geometries and folded with the time and motion studies for individual workers in order to determine worker exposure on an annual basis.

Hughes, P.S.; Rigdon, L.D.

1980-02-01

276

Analyses of operational times and technical aspects of the Salton Sea scientific drilling project: (Final report)  

SciTech Connect

The Deep Salton Sea Scientific Drilling Program (DSSSDP) was conducted in Imperial County of California at the Southeastern edge of the Salton Sea. Emphasis was on the acquisition of scientific data for the evaluation of the geological environment encountered during the drilling of the well. The scientific data acquisition activities consisted of coring, running of numerous downhole logs and tools in support of defining the geologic environment and conducting two full scale flow tests primarily to obtain pristine fluid samples. In addition, drill cuttings, gases and drilling fluid chemistry measurements were obtained from the drilling fluid returns concurrent with drilling and coring operations. The well was drilled to 10,564 feet. This report describes the field portions of the project and presents an analysis of the time spent on the various activities associated with the normal drilling operations, scientific data gathering operations and the three major downhole problem activities - lost circulation, directional control and fishing.

Not Available

1986-12-01

277

Chemical warfare: Implications for Operation Desert Storm and beyond. Final report  

SciTech Connect

This paper presents the potential for use of lethal and incapacitating chemical agents in the Persian Gulf. Insight from past chemical warfare case studies, current international law, and U.S. and Soviet policy, strategy and tactics provide a basis for examination of Iraq's chemical warfare potential and operational strategy. In addition, a survey of Naval War College students assesses the current U.S. Armed Forces level of chemical warfare readiness. This analysis combined with the U.S. experience and current war with Iraq as well as proposing a more viable operational capability to meet stated national policy in response to chemical weapons.

Trummer, F.G.; Twining, B.L.

1991-02-11

278

Superconducting magnetic calibration source for magnetic anomaly detection (MAD) operations. Final report  

Microsoft Academic Search

A superconducting solenoid was designed, built and tested to demonstrate the feasibility of using this type of device as a calibration source for Magnetic Anomaly Detection operations. A description of the dewar system required for such a solenoid is also described. The magnetic moment of the solenoid which was 48 cm in outer diameter, was 150,000 ampere-turns-meter squared.

M. Nisenoff; J. J. Kennedy; A. W. Webb

1977-01-01

279

Chemical Operations Technology Curriculum Development Project. PY95 Final Detailed Report.  

ERIC Educational Resources Information Center

A model curriculum for an associate of applied science degree in chemical operations technology (COT) was developed at Texas State Technical College in Marshall, Texas. First, a comprehensive analysis of the local and statewide labor market demand for trained personnel in the advanced field of COT was conducted. Next, a comprehensive task analysis

Texas State Technical Coll., Marshall.

280

The Feasibility of Generalized Acoustic Sensor Operator Training. Final Report for Period February 1974-February 1975.  

ERIC Educational Resources Information Center

The feasibility of generalized approaches to training military personnel in the use of different types of sonar/acoustic warfare systems was explored. The initial phase of the project consisted of the analysis of representative sonar and acoustic equipment to identify training areas and operator performance requirements that could be subjected to

Daniels, Richard W.; Alden, David G.

281

Natural gas storage conditions as a function of operating environment. Final report, November 1994November 1995  

Microsoft Academic Search

The report describes the results of an experimental and analytical program whereby five Natural Gas Vehicle (NGV) storage cylinders, of four types of construction, were subjected to high ambient temperature rapid filling and low ambient temperature engine fueling applications, to simulate the extremes in operating environments in which these gas storage cylinders must function.

Kountz

1996-01-01

282

RESEARCH ON IMPROVED THERMIONIC CONVERTER FOR SPACE OPERATIONS. Final Report, January 1, 1960December 31, 1961  

Microsoft Academic Search

9 = : ; 8 ; 7 : : 7 : ? 6 >Cs plasma diode ; shows that operating conditions can be achieved for which there exists no ; simultaneous solution of the space charge and converter equations which relate ; current, voltage, and load impedance. These conditions correspond to those for ; which internal relaxation oscillations were experimentally

J. R. Fendley; K. G. Hernqvist; F. M. Johnson; J. D. Levine

1961-01-01

283

EVALUATION OF AN INDIVIDUALLY PACED COURSE FOR AIRBORNE RADIO CODE OPERATORS. FINAL REPORT.  

ERIC Educational Resources Information Center

IN THIS STUDY COMPARISONS WERE MADE BETWEEN AN INDIVIDUALLY PACED VERSION OF THE AIRBORNE RADIO CODE OPERATOR (ARCO) COURSE AND TWO VERSIONS OF THE COURSE IN WHICH THE STUDENTS PROGRESSED AT A FIXED PACE. THE ARCO COURSE IS A CLASS C SCHOOL IN WHICH THE STUDENT LEARNS TO SEND AND RECEIVE MILITARY MESSAGES USING THE INTERNATIONAL MORSE CODE. THE

BALDWIN, ROBERT O.; JOHNSON, KIRK A.

284

Skills Conversion Project: Chapter 6, Forest Operations and Wood Products. Final Report.  

ERIC Educational Resources Information Center

A study of the forest operations and wood products industries was conducted in Atlanta and Seattle by the National Society of Professional Engineers. Included among these industries are tree development, crop and land management, logging, material handling transportation, cutting, peeling, assembly, pulp and paper, mobile homes, construction,

National Society of Professional Engineers, Washington, DC.

285

Environmental assessment for device assembly facility operations, Nevada Test Site, Nye County, Nevada. Final report  

SciTech Connect

The U.S. Department of Energy, Nevada Operations Office (DOE/NV), has prepared an environmental assessment (EA), (DOE/EA-0971), to evaluate the impacts of consolidating all nuclear explosive operations at the newly constructed Device Assembly Facility (DAF) in Area 6 of the Nevada Test Site. These operations generally include assembly, disassembly or modification, staging, transportation, testing, maintenance, repair, retrofit, and surveillance. Such operations have previously been conducted at the Nevada Test Site in older facilities located in Area 27. The DAF will provide enhanced capabilities in a state-of-the-art facility for the safe, secure, and efficient handling of high explosives in combination with special nuclear materials (plutonium and highly enriched uranium). Based on the information and analyses in the EA, DOE has determined that the proposed action would not constitute a major federal action significantly affecting the quality of the human environment within the meaning of the National Environmental Policy Act of 1969 (42 U.S.C. 4321 et seq.). Therefore, an environmental impact statement is not required, and DOE is issuing this finding of no significant impact.

NONE

1995-05-01

286

Operational testing of a system for solid-waste-to-energy conversion. Final report  

Microsoft Academic Search

A performance evaluation based on 48 hours monitoring of a packaged heat-recovery incinerator installation is presented. The evaluation includes heat balance analysis, stack emissions, and general observations. The heat balance data is of greatest significance since it will allow extrapolation of heat balances for other operating conditions.

H. Kleinhenz; H. Rigo

1976-01-01

287

Modification, relocation and operation of the Pedco Rotary Cascading Bed Boiler. Final report  

Microsoft Academic Search

The Pedco Rotary Cascading Bed Demonstration Boiler was moved from the closed Hudepohl plant to the Zurn plant in Erie, Pennsylvania following the completion of a license agreement between Pedco and Zurn. The modifications were completed and the boiler installed in a new test building at the North American plant in Elizabethton, Tennessee. Test operations were initiated in Dec. 1990

1992-01-01

288

Operation of Glen Canyon Dam. Final environmental impact statement, summary, comments and responses  

SciTech Connect

The Federal action considered in this environmental impact statement (EIS) is the operation of Glen Canyon Dam, Colorado River Storage Project (CRSP), Arizona. The purpose of the reevaluation is to determine specific options that could be implemented to minimize--consistent with law-adverse impacts on the downstream environmental and cultural resources, as well as Native American interests in Glen and Grand Canyons.

NONE

1995-03-01

289

A Post Licensing Study of Community Effects at Two Operating Nuclear Power Plants. Final Report.  

ERIC Educational Resources Information Center

In an effort to identify and assess the social, economic, and political effects of nuclear power plant construction and operation upon two host communities (Plymouth, Massachusetts and Waterford, Connecticut), a post-licensing review revealed that the primary impact of the nuclear power plants in both communities was an increase in the property

Purdy, Bruce J.; And Others

290

Accidents associated with oil and gas operations: Outer continental shelf, 1956-1990. Final report  

Microsoft Academic Search

The report is a compilation of descriptions of all blowouts, explosions and fires, pipeline breaks or leaks, significant pollution incidents, and major accidents that occurred on federally leased offshore lands from 1956 through 1990. The report identifies accidents by area, block number, lease number, platform number, well number, and operator. It describes the type of accident, corrective action taken, and

Tracy

1992-01-01

291

Machine monitoring for turning machine. [Hemispherical workpieces  

SciTech Connect

This paper describes activities that have occurred to date on a prototype system used to monitor the status of a turning operation that provides high qualtiy hemispherical workpieces. Data are collected from a variety of sensors and used to judge part quality in real time through a comparison with historical data from an on-line computer data base. The techniques developed on this system will be implemented in a precision flexible manufacturing cell that will operate in partly untended mode. A combination of on-machine monitoring and off-machine gaging will ensure that workpieces leaving the cell have in-tolerance characteristics.

Barkman, W.E.; Wieger, G.P.; Woodard, L.M.

1984-01-10

292

New Pump and Treat Facility Remedial Action Work Plan for Test Area North (TAN) Final Groundwater Remediation, Operable Unit 1-07B  

SciTech Connect

This operations and maintenance plan supports the New Pump and Treat Facility (NPTF) remedial action work plan and identifies the approach and requirements for the operations and maintenance activities specific to the final medical zone treatment remedy. The NPTF provides the treatment system necessary to remediate the medical zone portion of the OU 1-07B contaminated groundwater plume. Design and construction of the New Pump and Treat Facility is addressed in the NPTF remedial action work plan. The scope of this operation and maintenance plan includes facility operations and maintenance, remedy five-year reviews, and the final operations and maintenance report for the NPTF.

L. O. Nelson

2003-09-01

293

Columbia River System Operation Review : Final Environmental Impact Statement, Appendix D: Exhibits.  

SciTech Connect

The Columbia River and its tributaries are the primary water system in the Pacific Northwest, draining some 219,000 square miles in seven states and another 39,500 square miles in British Columbia. Beginning in the 1930`s, the Columbia River has been significantly modified by construction of 30 major dams on the river and its tributaries, along with dozens of non-Federal projects. Construction and subsequent operation of these water development projects have contributed to eight primary uses of the river system, including navigation, flood control, irrigation, electric power generation, fish migration, fish and wildlife habitat, recreation, and water supply and quality considerations. Increasing stress on the water development of the Columbia River and its tributaries has led primary Federal agencies to undertake intensive analysis and evaluation of the operation of these projects. These agencies are the U.S. Army Corps of Engineers and the Bureau of Reclamation, who operate the large Federal dams on the river, and the Bonneville Power Administration who sells the power generated at the dams. This review, termed the System Operation Review (SOR), has as its ultimate goal to define a strategy for future operation of the major Columbia River projects which effectively considers the needs of all river uses. This volume, Appendix D: Cultural resources appendix, Technical imput includes the following: Development of geomorphology based framework for cultural resources management, Dworshak Reservoir, Idaho; Impact profiles for SOR reservoirs; comments from the following Native American tribes: Burns Paiute Tribe; Coville Confederated Tribes; Confederated Tribes of the Warm Springs Indian Reservation; Confederated Tribes and bands of the Yakama Indian Nation (comments); Nez Perce Tribe; Coeur D`Alene Tribe; Spokane Tribe of Indians; The confederated Tribes of the Umatilla Indian Reservation.

Columbia River System Operation Review (U.S.)

1995-11-01

294

MACHINE CONTEST MACHINE VOLUME WORKSHEET  

E-print Network

MACHINE CONTEST MACHINE VOLUME WORKSHEET Note: Each square is 1' x 1' (0.3 m x 0.3 m) (Official the footprint of your machine NOTE: If any part of the machine falls within a square, you must count the entire: _______________ (choose one: ft2 or m2 ) STEP 3: Measure the height of your machine. NOTE: The maximum height is 8' (2.4 m

Yener, Aylin

295

DNA-based machines.  

PubMed

The base sequence in nucleic acids encodes substantial structural and functional information into the biopolymer. This encoded information provides the basis for the tailoring and assembly of DNA machines. A DNA machine is defined as a molecular device that exhibits the following fundamental features. (1) It performs a fuel-driven mechanical process that mimics macroscopic machines. (2) The mechanical process requires an energy input, "fuel." (3) The mechanical operation is accompanied by an energy consumption process that leads to "waste products." (4) The cyclic operation of the DNA devices, involves the use of "fuel" and "anti-fuel" ingredients. A variety of DNA-based machines are described, including the construction of "tweezers," "walkers," "robots," "cranes," "transporters," "springs," "gears," and interlocked cyclic DNA structures acting as reconfigurable catenanes, rotaxanes, and rotors. Different "fuels", such as nucleic acid strands, pH (H?/OH?), metal ions, and light, are used to trigger the mechanical functions of the DNA devices. The operation of the devices in solution and on surfaces is described, and a variety of optical, electrical, and photoelectrochemical methods to follow the operations of the DNA machines are presented. We further address the possible applications of DNA machines and the future perspectives of molecular DNA devices. These include the application of DNA machines as functional structures for the construction of logic gates and computing, for the programmed organization of metallic nanoparticle structures and the control of plasmonic properties, and for controlling chemical transformations by DNA machines. We further discuss the future applications of DNA machines for intracellular sensing, controlling intracellular metabolic pathways, and the use of the functional nanostructures for drug delivery and medical applications. PMID:24647836

Wang, Fuan; Willner, Bilha; Willner, Itamar

2014-01-01

296

Simple Machines  

NSDL National Science Digital Library

At this website, EdHeads, a nonprofit, offers five interactive, animated modules to educate second- through sixth-graders about simple machines. By identifying the many machines located throughout a house, students can learn about fulcrums, wheel and axles, levers, pulleys, inclined planes, and much more. The website is equipped with simple animations to help children understand how the machines work. After students have a handle on simple machines, they can begin to see how they work together to create compound machines. The website also provides a brief glossary summarizing nine types of simple machines. This site is also reviewed in the February 18, 2005_NSDL Physical Sciences Report_.

297

Department of Energy Site Operator Program. Final report, October 1, 1991--September 31, 1996  

SciTech Connect

York Technical College is a two-year public institution accredited by the Commission of Colleges of the Southern Association of Colleges and Schools. York Technical College has been involved with electric vehicles since the late 1980`s. The four major objectives of the Site Operator Program were (1) field test and evaluate electric and hybrid vehicles and related components; (2) define and develop a national infrastructure system including electric charging systems, service/training education programs, utility system impacts and safety standards; (3) increase public awareness regarding environmental benefits, reduced dependency on foreign oil, technology development, and economic impacts; (4) assist local, state and federal agencies and fleet operators in developing electric and hybrid vehicle programs. The primary thrusts of the electric vehicle program at York Technical College, supporting the objectives of the Site Operator program were: (1) public awareness, (2) public education, (3) EV maintenance curriculum development and maintenance training, (4) field data collection, (5) vehicle modification and upgrade, (6) establish electric vehicle partnerships.

NONE

1996-12-31

298

Operational Readiness Review Final Report For F-Canyon Restart. Phase 1  

SciTech Connect

An independent WSRC Operational Readiness Review was performed for the restart of Phase 1 processing in F-Canyon, Building 221-F. Readiness to restart the Second Plutonium Cycle process and solvent recovery was assessed. The ORR was conducted by an ORR board of ten members with the support of a subject matter expert. The chairman and four members were drawn from the Operational Safety Evaluation Department, ESH& QA Division; additional members were drawn from other WSRC divisions, independent of the F-Canyon operating division (NMPD). Based on the results of the readiness verification assessments performed according to the ORR plan and the validation of pre-restart corrective actions, the WSRC independent ORR Board has concluded that the facility has achieved the state of readiness committed to in the Restart Plan. Also, based on the scope of the ORR, it is the opinion of the board that F-Canyon Phase 1 processes can be restarted without undue risk to the safety of the public and onsite workers and without undue risk to the environment.

McFarlane, A.F.; Spangler, J.B.

1995-04-05

299

Final Report on the Operation and Maintenance Improvement Program for Concentrating Solar Power Plants  

SciTech Connect

This report describes the results of a six-year, $6.3 million project to reduce operation and maintenance (O&M) costs at power plants employing concentrating solar power (CSP) technology. Sandia National Laboratories teamed with KJC Operating Company to implement the O&M Improvement Program. O&M technologies developed during the course of the program were demonstrated at the 150-MW Kramer Junction solar power park located in Boron, California. Improvements were made in the following areas: (a) efficiency of solar energy collection, (b) O&M information management, (c) reliability of solar field flow loop hardware, (d) plant operating strategy, and (e) cost reduction associated with environmental issues. A 37% reduction in annual O&M costs was achieved. Based on the lessons learned, an optimum solar- field O&M plan for future CSP plants is presented. Parabolic trough solar technology is employed at Kramer Junction. However, many of the O&M improvements described in the report are also applicable to CSP plants based on solar power tower or dish/engine concepts.

Cohen Gilbert E.; Kearney, David W.; Kolb, Gregory J.

1999-06-01

300

Modification, relocation and operation of the Pedco Rotary Cascading Bed Boiler. Final report  

SciTech Connect

The Pedco Rotary Cascading Bed Demonstration Boiler was moved from the closed Hudepohl plant to the Zurn plant in Erie, Pennsylvania following the completion of a license agreement between Pedco and Zurn. The modifications were completed and the boiler installed in a new test building at the North American plant in Elizabethton, Tennessee. Test operations were initiated in Dec. 1990 and concluded in January 1992. Over thirty different fuels and fuel combinations were tested including high sulfur coals, coal wastes, industrial sludges, municipal solid wastes, oils and solvents, treated wood wastes -- all alone and co-fired with high sulfur coal. Based on the test results and operational observations, the following major conclusions have been drawn from the Elizabethton operations: (1) The Pedco Rotary Cascading Bed Combustion System can burn high sulfur and waste coals in an economically and environmentally acceptable manner. (2) The Pedco Rotary Cascading Bed Combustion System can burn a wide variety of fuels and fuel mixes cleanly and economically. (3) Fuels can be changed ``on-the-fly`` without shutting down or losing desired steam conditions. (4) Fly ash from high sulfur coal has the potential for beneficial uses as a soil Conditioner, fertilizer ingredient or construction material additive.

Long, W.H. [PEDCO, Inc., Cincinnati, OH (United States)

1992-07-31

301

Automated Long-Term Monitoring of Parallel Microfluidic Operations Applying a Machine Vision-Assisted Positioning Method  

PubMed Central

As microfluidics has been applied extensively in many cell and biochemical applications, monitoring the related processes is an important requirement. In this work, we design and fabricate a high-throughput microfluidic device which contains 32 microchambers to perform automated parallel microfluidic operations and monitoring on an automated stage of a microscope. Images are captured at multiple spots on the device during the operations for monitoring samples in microchambers in parallel; yet the device positions may vary at different time points throughout operations as the device moves back and forth on a motorized microscopic stage. Here, we report an image-based positioning strategy to realign the chamber position before every recording of microscopic image. We fabricate alignment marks at defined locations next to the chambers in the microfluidic device as reference positions. We also develop image processing algorithms to recognize the chamber positions in real-time, followed by realigning the chambers to their preset positions in the captured images. We perform experiments to validate and characterize the device functionality and the automated realignment operation. Together, this microfluidic realignment strategy can be a platform technology to achieve precise positioning of multiple chambers for general microfluidic applications requiring long-term parallel monitoring of cell and biochemical activities. PMID:25133248

Yip, Hon Ming; Li, John C. S.; Cui, Xin; Gao, Qiannan; Leung, Chi Chiu

2014-01-01

302

Molten salt coal gasification process development unit. Phase 1. Volume 1. PDU operations. Final report  

SciTech Connect

This report summarizes the results of a test program conducted on the Molten Salt Coal Gasification Process, which included the design, construction, and operation of a Process Development Unit. In this process, coal is gasified by contacting it with air in a turbulent pool of molten sodium carbonate. Sulfur and ash are retained in the melt, and a small stream is continuously removed from the gasifier for regeneration of sodium carbonate, removal of sulfur, and disposal of the ash. The process can handle a wide variety of feed materials, including highly caking coals, and produces a gas relatively free from tars and other impurities. The gasification step is carried out at approximately 1800/sup 0/F. The PDU was designed to process 1 ton per hour of coal at pressures up to 20 atm. It is a completely integrated facility including systems for feeding solids to the gasifier, regenerating sodium carbonate for reuse, and removing sulfur and ash in forms suitable for disposal. Five extended test runs were made. The observed product gas composition was quite close to that predicted on the basis of earlier small-scale tests and thermodynamic considerations. All plant systems were operated in an integrated manner during one of the runs. The principal problem encountered during the five test runs was maintaining a continuous flow of melt from the gasifier to the quench tank. Test data and discussions regarding plant equipment and process performance are presented. The program also included a commercial plant study which showed the process to be attractive for use in a combined-cycle, electric power plant. The report is presented in two volumes, Volume 1, PDU Operations, and Volume 2, Commercial Plant Study.

Kohl, A.L.

1980-05-01

303

Locomotive data acquisition package phase II system development. Final report. Volume 2. LDR operations and maintenance  

SciTech Connect

An examination of the problems associated with railroad locomotive data acquisition is presented. The design of a minicomputer based locomotive data acquisition system is also presented. Special attention is placed on meeting the functional characteristics and environmental specifications required for the system. The system described consists of a magnetic tape digital data recorder, an ensemble of transducers, and analysis software. The system described is to be used as a research tool. This volume discusses the operation and maintenance of the Locomotive Data Recorder (LDR).

Abbott, R.K.; Kirsten, F.A.; Mullen, D.R.; Sidman, S.B.; Miller, J.G.; Ng, L.S.

1980-03-01

304

Vehicular fleet operation on natural gas and propane: An overview. Final research report  

SciTech Connect

The report attempts to contribute to the timely area of alternative vehicular fuels. It addresses the analysis of fleet operation on alternative fuels, specifically compressed natural gas (CNG) and propane, in terms of both fleet economics and societal impacts. Comprehensive information on engine technology, fueling infrastructure design, and societal impacts are presented. An evaluation framework useful for decisions between any vehicular fuels is developed. The comprehensive fleet cost-effectiveness analysis framework used in previous Project 983 reports is discussed in great detail. This framework/model is flexible enough to allow substantial sensitivity and scenario analysis. The model is used to perform sample analyses of both fleet economic and societal impacts.

Taylor, D.B.; Mahmassani, H.; Euritt, M.A.

1992-11-01

305

Final Environmental Impact Statement for the construction and operation of Claiborne Enrichment Center, Homer, Louisiana (Docket No. 70-3070)  

SciTech Connect

This two-volume Final Environmental Impact Statement (FEIS) was prepared by the Nuclear Regulatory Commission (NRC) in accordance with regulation 10 CFR Part 51, which implements the National Environmental Policy Act (NEPA). Volume 1 contains the assessment of the potential environmental impacts for licensing the construction and operation of a proposed gaseous centrifuge enrichment facility to be built in Claiborne Parish, Louisiana, by Louisiana Energy Services, LP. (LES). The proposed facility would have a production capacity of about 866 metric tons annually of up to 5 weight percent enriched UF{sub 6}, using a proven centrifuge technology. Included in the assessment are construction, both normal operations and potential accidents (internal and external events), and the eventual decontamination and decommissioning (D&D)- of the site. Issues addressed include the purpose and need for the facility, the alternatives to the proposed action, potential disposition of the tails, the site selection process, and environmental justice. The NRC staff concludes that the facility can be constructed and operated with small and acceptable impacts on the public and the environment. The FEIS supports issuance of a license to the applicant, Louisiana Energy Services, to authorize construction and operation of the proposed facility.

Zeitoun, A. [Science Applications International Corp., Germantown, MD (United States)

1994-08-01

306

Operations, Maintenance, and Replacement 10-Year Plan 1990-1999 : Environmental Strategy. Final Report.  

SciTech Connect

In operating and maintaining its regional power transmission system, Bonneville Power Administration (BPA) must address environmental concerns. Pollution sources and pathways for pollution migration, including potential contamination from hazardous or toxic materials, are present. BPA must develop and follow precautionary measures, respond to emergencies, minimize wastes, redress past problems, alert and train employees to problems and safety needs, constantly evaluate this effort and update the program for improvements and changes in regulations and technology. Part of BPA's mission is to conduct its operation, maintenance, and replacement programs in an environmentally sound manner. BPA recognizes its responsibility to be good stewards of the environment. BPA will meet its environmental obligations as set forth in environmental laws and regulations. BPA intends to make consistent and measurable progress toward meeting these responsibilities. The target for the 10-Year Plan is to achieve environmental compliance and meet the following goals: (1) protect human health and the environment; (2) avoid or limit liability (3) set up an effective internal management structure to maintain compliance; and (4) achieve cost-effective compliance. 6 figs.

United States. Bonneville Power Administration.

1990-09-01

307

Field Operations Program Chevrolet S-10 (Lead-Acid) Accelerated Reliability Testing - Final Report  

SciTech Connect

This report summarizes the Accelerated Reliability testing of five lead-acid battery-equipped Chevrolet S-10 electric vehicles by the US Department of Energy's Field Operations Program and the Program's testing partners, Electric Transportation Applications (ETA) and Southern California Edison (SCE). ETA and SCE operated the S-10s with the goal of placing 25,000 miles on each vehicle within 1 year, providing an accelerated life-cycle analysis. The testing was performed according to established and published test procedures. The S-10s' average ranges were highest during summer months; changes in ambient temperature from night to day and from season-to-season impacted range by as much as 10 miles. Drivers also noted that excessive use of power during acceleration also had a dramatic effect on vehicle range. The spirited performance of the S-10s created a great temptation to inexperienced electric vehicle drivers to ''have a good time'' and to fully utilize the S-10's acceleration capability. The price of injudicious use of power is greatly reduced range and a long-term reduction in battery life. The range using full-power accelerations followed by rapid deceleration in city driving has been 20 miles or less.

J. Francfort (INEEL); J. Argueta; M. Wehrey (Southern California Edison); D. Karner; L. Tyree (Electric Transportation Applications)

1999-07-01

308

Evaluation of the heating operation and transmission district: Feasibility of cogeneration. Final report  

SciTech Connect

The General Services Administration, through its National Capital Region, operates a district heating system - called the Heating Operation and Transmission District - that provides steam to approximately 100 government buildings in Washington, D.C. HOTD is examining a host of options that will improve its ability to provide reliable, environmentally sound, and cost-effective service to its customers. This report evaluates one of those options - cogeneration, a technology that would enable HOTD to produce steam and electricity simultaneously. The study concluded that, under current regulations, cogeneration is not attractive economically because the payback period (15 years) exceeds Federal return-on-investment guidelines. However, if the regulatory environment changes to allow wheeling (transmission of power by a non-utility power producer to another user), cogeneration would be attractive; HOTD would save anywhere from $38 million to $118 million and the investment would pay back in 7 to 10 years. Although incorporating cogeneration into the HOTD system has no strong benefit at this time, the report recommends that GSA reevaluate cogeneration in one or two years because Federal regulations regarding wheeling are under review. It also recommends that GSA work with the District of Columbia government to develop standards for cogeneration.

Cable, J.H.; Gilday, L.T.; Moss, M.E.

1995-11-01

309

Development of an operational tool for biomonitoring using constant pressure respirometry. [Final report  

SciTech Connect

The United States Environmental Protection Agency (US EPA) policy statement (FR 49, 9016, 9 March 1984) for the development of water quality based permit limitations includes toxicity testing of effluents as an important part of a water quality approach to controlling toxics (Pickering, 1988). To assure that state waters are free of toxics, both chemical and biological methods were recommended for assessing effluent quality. The US EPA validated bioassay procedures for toxicity testing of wastewater discharges use three distinctive organisms groups: vertebrates, invertebrates, and algae (Weber, 1989). The specific species for these three groups are fathead minnow, Pimephales promelas; water tea, Ceriodaphnia, dubia; and the green algae, Selenastrum capricornum, respectively. Definitive testing estimates the concentration atwhich a certain percentage of organisms exhibit a certain response. The definitive test exposes several replicate groups of organisms to the target substrate for a predetermined time period effluent concentration. The overall goal of this study is to develop an acceptable protocol for operational biomonitoring based on constant pressure respirometry for LANL. The specific objectives include: Development an appropriate toxicity testing protocol based on constant pressure respirometry for whole effluent toxicity testing, and evaluate the protocol based on factors such as sensitivity, response time, cost of analysis, and simplicity of operation.

Zachritz, W.H. II; Morrow, J. [New Mexico State Univ., Las Cruces, NM (United States)

1992-06-29

310

Coal-liquid fuel/diesel engine operating compatibility. Final report  

SciTech Connect

This work is intended to assess the possibilities of using coal-derived liquids (CDL) represented by a specific type (SRC II) and shale-derived distillate fuel in blends of petroleum-derived fuels in medium-speed, high-output, heavy-duty diesel engines. Conclusions are as follows: (1) Blends of solvent refined coal and diesel fuel may be handled safely by experienced diesel engine mechanics. (2) A serious corrosion problem was found in the fuel pump parts when operating with solvent refined coal blended with petroleum. It is expected that a metallurgy change can overcome this problem. (3) Proper selection of materials for the fuel system is required to permit handling coal-derived liquid fuels. (4) A medium speed, high horsepower, 4-cycle diesel engine can be operated on blends of solvent refined coal and petroleum without serious consequences save the fuel system corrosion previously mentioned. This is based on a single, short durability test. (5) As represented by the product evaluated, 100% shale-derived distillate fuel may be used in a medium speed, high horsepower, 4-cycle diesel engine without significant consequences. (6) The shale product evaluated may be blended with petroleum distillate or petroleum residual materials and used as a fuel for medium speed, high horsepower, 4-cycle diesel engines. 7 references, 24 figures, 20 tables.

Hoffman, J.G.; Martin, F.W.

1983-09-01

311

Operational implementation of ammonium perchlorate biodegradation. Final report, July 1997--June 1998  

SciTech Connect

This technology is a low-cost biodegradation process that converts the perchlorate ion (ClO{sub 4}{sup {minus}}) in process wastewater to chloride (Cl{sup {minus}}). Perchlorate can be reduced from a concentration greater than 1.0% to a concentration below detection limits (< 0.5 ppm). Effluents from this process can be discharged directly to conventional sewage treatment facilities. This process will: (1) Reduce environmental liability to DoD and its contractors by reducing the generation of hazardous wastes; (2) Minimize adverse impact of environmental compliance to DoD support operations; (3) Reduce cost for solid rocket propellant and large rocket motor disposal; (4) Facilitate component, propellant, and propellant ingredient recovery and reuse; and (5) Enable the continued use of AP, a critical defense material, in propulsion systems for the DoD. The objective of this demonstration was to provide a production-scale, operational validation of the ammonium perchlorate (AP) biodegradation process that was developed by the Air Force Research Laboratory. Components of an existing pilot-scale demonstration unit were modified and integrated into existing waste treatment facilities at Thiokol`s production plant near Brigham City, Utah.

Coppola, E.N.; Rine, J.; Startzell, G.

1998-06-19

312

Kid Machine  

NSDL National Science Digital Library

This activity is on page 3 (continued on page 2) of the pdf, part of the Simple Machines Discovery Box. In this fun activity, learners "create" a complex machine by simulating the parts in action. Learners move their bodies and make sounds as if they are individual parts of a moving machine. Then learners discover what happens when part of a machine is broken and problem solve ways to fix it.

2012-06-26

313

SIMPLE MACHINES  

NSDL National Science Digital Library

You will be learning about several types of simple machines. Have fun!! Review the first website (which is right here!! Simple machines) . It has information about simple machines. DON\\"T click until you read all directions!!! Prepare to discuss each type in class. You will need to take some basic notes about each machine, using a bubble-map format. Don\\'t forget ...

Mrs. MacHose

2007-03-10

314

Sewing Machines!!  

NSDL National Science Digital Library

Learn the Parts of a Sewing Machine This should help you understand the history of sewing machines and how they work. For this assignment, answer these questions on a sheet of paper and bring it to class. Click on this link to go to a site which will briefly explain the history of the sewing machine: wikipedia Was ...

Miss. Walker

2008-10-20

315

Electrostatic Machines  

NSDL National Science Digital Library

This website from Antonio Carlos M. De Queiroz, an associate professor at the Federal University of Rio de Janeiro, illustrates a number of different electrostatic machines. The site includes details and images of machines built by the professor as well as many other historical machines of this type. Some information is also available in Portugese.

De Queiroz, Antonio Carlos M.

316

Simple Machines  

NSDL National Science Digital Library

This is a lesson about simple machines and how they relate to robots. Learners will gain an understanding of simple machines and how they may be used in our everyday lives. Students will also have an opportunity to design a Rube Goldberg Machine of their own. This is lesson 10 of 16 in the MarsBots learning module.

2012-08-03

317

Simple Machines  

NSDL National Science Digital Library

This is an online activity about simple machines. Learners will try their hand at putting these amazing devices to work. They will use several simple machines to help "build" a tree house. This is an excellent activity to demonstrate how science - in particular, simple machines - are at work in our everyday lives.

COSI

2000-01-01

318

LDRD final report : a lightweight operating system for multi-core capability class supercomputers.  

SciTech Connect

The two primary objectives of this LDRD project were to create a lightweight kernel (LWK) operating system(OS) designed to take maximum advantage of multi-core processors, and to leverage the virtualization capabilities in modern multi-core processors to create a more flexible and adaptable LWK environment. The most significant technical accomplishments of this project were the development of the Kitten lightweight kernel, the co-development of the SMARTMAP intra-node memory mapping technique, and the development and demonstration of a scalable virtualization environment for HPC. Each of these topics is presented in this report by the inclusion of a published or submitted research paper. The results of this project are being leveraged by several ongoing and new research projects.

Kelly, Suzanne Marie; Hudson, Trammell B. (OS Research); Ferreira, Kurt Brian; Bridges, Patrick G. (University of New Mexico); Pedretti, Kevin Thomas Tauke; Levenhagen, Michael J.; Brightwell, Ronald Brian

2010-09-01

319

Columbia River System Operation Review : Final Environmental Impact Statement, Appendix N: Wildlife.  

SciTech Connect

The Columbia River System is a vast and complex combination of Federal and non-Federal facilities used for many purposes including power production, irrigation, navigation, flood control, recreation, fish and wildlife habitat and municipal and industrial water supply. Each river use competes for the limited water resources in the Columbia River Basin. This technical appendix addresses only the effects of alternative system operating strategies for managing the Columbia River system. The environmental impact statement (EIS) itself and some of the other appendices present analyses of the alternative approaches to the other three decisions considered as part of the SOR. This document is the product of the Wildlife Work Group, focusing on wildlife impacts but not including fishes. Topics covered include the following: scope and process; existing and affected environment, including specific discussion of 18 projects in the Columbia river basin. Analysis, evaluation, and alternatives are presented for all projects. System wide impacts to wildlife are also included.

Columbia River System Operation Review (U.S.)

1995-11-01

320

Double Function Machine  

NSDL National Science Digital Library

This Flash applet allows the user to explore the concept of a function using an input-output machine with two operations and options to set and hide or reveal all operations and numbers. A notepad is available for recording inputs and outputs, and a loop function takes the current output as the next input.

Dan Bunker

2010-01-01

321

Pipe cleaning machine  

Microsoft Academic Search

This is a semiautomatic machine for removing rust, mud, and paraffin from the interior and exterior of well pipe or tubing to recondition it for further use. Loading, cleaning and re-racking is carried out by a single operator. The machine has a rectangular, box-like frame which consists of 3 sub-sections and includes a loading rack located on one side of

1965-01-01

322

High-frequency acoustic sensors for operation in a gaseous medium. Final report  

SciTech Connect

Photothermal microscopy is a technique for measuring thermal properties on a small scale by using focused laser beams as heat sources and as temperature probes. Typically used for nondestructive evaluation (NDE) of materials, its main advantage is its ability to measure types of flaws that are not visible optically or acoustically. Because of the optical nature of photothermal microscopy, sub-micron resolutions can be obtained in many of these thermal measurements. The greatest limitation of these systems is their relatively poor signal-to-noise ratios and, consequently, slow imaging speeds. To circumvent this problem, a variety of approaches to the detection of thermal waves has been pursued in recent years. This thesis compares the relative merits of a common class of techniques that rely on direct observation of physical changes in the heated sample, including a novel approach to interferometric measurement of the thermal expansion. It is found that the optimum approach depends not only on the physical properties of the sample being studies, but also upon the resolution of the experiment and the damage threshold of the specimen. Finally, this dissertation describes the applications of photothermal microscopy to the study of the anisotropic thermal properties of the new high-{Tc} superconductors. By adding a high-vacuum cryostat to the microscope, the authors have been able to study the influence of the superconducting transition on the thermal conductivity. The measurements of the anisotropic thermal conductivity demonstrate that the heat flow along the superconducting planes is enhanced below the transition, and that no such enhancement exists in the non-superconducting direction. Material examined was Bi-Ca-Sr-Cu-O.

Kino, G.S.

1990-12-31

323

A support vector machine-based state-of-health estimation method for lithium-ion batteries under electric vehicle operation  

NASA Astrophysics Data System (ADS)

Capacity and resistance are state-of-health (SOH) indicators that are essential to monitor during the application of batteries on board electric vehicles. For state-of-health determination in laboratory environment, standard battery performance tests are established and well-functioning. Since standard performance tests are not available on-board a vehicle, we are developing a method where those standard tests are applied virtually to a support vector machine-based battery model. This data-driven model is solely based on variables available during ordinary electric vehicle (EV) operation such as battery current, voltage and temperature. This article contributes with a thorough experimental validation of this method, as well as the introduction of new features - capacity estimation and temperature dependence. Typical EV battery usage data is generated and exposed to the suggested method in order to estimate capacity and resistance. These estimations are compared to direct measurements of the SOH indicators with standard tests. The obtained estimations of capacities and instantaneous resistances demonstrate good accuracy over a temperature and state-of-charge range typical for EV operating conditions and allow thus for online detection of battery degradation. The proposed method is also found to be suitable for on-board application in respect of processing power and memory restrictions.

Klass, Verena; Behm, Mrten; Lindbergh, Gran

2014-12-01

324

Columbia River System Operation Review : Final Environmental Impact Statement, Appendix D: Cultural Resources.  

SciTech Connect

This study attempts to identify and analyze the impacts of the System Operating Strategy (SOS) alternatives on cultural resources. The impacts include effects on Native American traditional cultural values, properties and practices. They also include effects on archeological or historic properties meeting the criteria of the National Register of Historic Places. In addition to responding to the requirements of the National Environmental Policy Act (NEPA), this analysis addresses the requirements of the National Historic Preservation Act (NHPA), the Archeological Resources Protection Act (ARPA), the Native American Graves Protection and Repatriation Act (NAGPRA), the Native American Religious Freedom Act (NARFA), and other relevant legislation. To meet their legally mandated cultural resources requirements, the SOR agencies will develop agreements and Implementation Plans with the appropriate State Historic Preservation Officers (SHPOs), Tribes, and the Advisory Council on Historic Preservation (ACHP) detailing the measures necessary to best manage the resource. The planning and implementation activities will be staged over a number of years in consultation with affected Tribes.

Columbia River System Operation Review (U.S.)

1995-11-01

325

A quiet operating I.C. engine with complete highly efficient expansion cycle. Final technical report  

SciTech Connect

A program for the development of a quiet operating internal combustion engine with complete highly efficient expansion cycle was administered by the Department of Energy on June 14, 1988 through December 13, 1989. An extension, modification M001 to the contract allowed up to June 12, 1991 to complete this work. The extension was granted in order for Engine Research Associates, Inc. (ERA) to continue the development of the engine on its own funds to a level of performance required for an independent testing facility to test and report on the engine`s performance. As it turned out, we were not able to complete all of the detailed development work under ERA, Inc. funding necessary to bring the engine up to a sufficient development status to allow an independent test lab to complete the full-up performance testing on the engine. However, we have incorporated enough refinements to be able to complete a somewhat restricted dynamometer test program on the engine using the ERA acquired dynamometer. A discussion of these refinements and how we were able to conduct a refined test is discussed under program accomplishments.

Not Available

1991-12-02

326

Nuclear reactor operator training for disadvantaged Americans. Final report, March 1, 1984--November 30, 1992  

SciTech Connect

The Nuclear Engineering and Engineering Physics Department of the University of Virginia was awarded a grant by the US Department of Energy in 1984 to establish and administer a reactor operator training program for disadvantaged Americans. Stipends were provided by the US DOE for five trainees with the anticipation that four other educational facilities would participate in the program. Sub-contracts were awarded to four other Universities: Massachusetts Institute of Technology, The University of Missouri at Columbia, Oregon State University, and The State University of New York at Buffalo. The initial two year program was very successful and the grant was renewed in late 1986 for another two years. MIT declined to participate in the second program and was replaced by Ohio State University. U.VA. was notified in September, 1987 that new funding would no longer be provided for this program after December, 1987. U.VA. requested and was granted a no cost extention for the program through December, 1990, since sufficient funds remained in the initial grant to pursue the program further. DOE subsequently approved a no cost extension through November, 1992.

Farrar, J.P.; Mulder, R.U.

1992-12-01

327

The Double-Needle Felling Machine. Module 17.  

ERIC Educational Resources Information Center

This module on the double-needle felling machine, one in a series dealing with industrial sewing machines, their attachments, and operation, covers two topics: performing special operations on the double-needle felling machine (straight seams) and performing special operations on the double-needle felling machine (curved flat-felled seams). For

South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

328

Adult Competency Education Kit. Basic Skills in Speaking, Math, and Reading for Employment. Part K. ACE Competency Based Job Descriptions: #40--Salesperson, Automobile; #41--Salesperson, Men's Wear; #42--Waiter/Waitress; #45--Janitor; #46--Porter; #48--Pressing Machine Operator.  

ERIC Educational Resources Information Center

This eighth of fifteen sets of Adult Competency Education (ACE) Based Job Descriptions in the ACE kit contains job descriptions for Salesperson, Automotive; Salesperson, Men's Wear; Waiter/Waitress; Janitor; Porter; and Pressing Machine Operator. Each begins with a fact sheet that includes this information: occupational title, D.O.T. code, ACE

San Mateo County Office of Education, Redwood City, CA. Career Preparation Centers.

329

Real-Time Traffic Information for Emergency Evacuation Operations: Phase A Final Report  

SciTech Connect

There are many instances in which it is possible to plan ahead for an emergency evacuation (e.g., an explosion at a chemical processing facility). For those cases, if an accident (or an attack) were to happen, then the best evacuation plan for the prevailing network and weather conditions would be deployed. In other cases (e.g., the derailment of a train transporting hazardous materials), there may not be any previously developed plan to be implemented and decisions must be made ad-hoc on how to proceed with an emergency evacuation. In both situations, the availability of real-time traffic information plays a critical role in the management of the evacuation operations. To improve public safety during a vehicular emergency evacuation it is necessary to detect losses of road capacity (due to incidents, for example) as early as possible. Once these bottlenecks are identified, re-routing strategies must be determined in real-time and deployed in the field to help dissipate the congestion and increase the efficiency of the evacuation. Due to cost constraints, only large urban areas have traffic sensor deployments that permit access to some sort of real-time traffic information; any evacuation taking place in any other areas of the country would have to proceed without real-time traffic information. The latter was the focus of this SERRI/DHS (Southeast Region Research Initiative/Department of Homeland Security) sponsored project. That is, the main objective on the project was to improve the operations during a vehicular emergency evacuation anywhere by using newly developed real-time traffic-information-gathering technologies to assess traffic conditions and therefore to potentially detect incidents on the main evacuation routes. Phase A of the project consisted in the development and testing of a prototype system composed of sensors that are engineered in such a way that they can be rapidly deployed in the field where and when they are needed. Each one of these sensors is also equipped with their own power supply and a GPS (Global Positioning System) device to auto-determine its spatial location on the transportation network under surveillance. The system is capable of assessing traffic parameters by identifying and re-identifying vehicles in the traffic stream as those vehicles pass over the sensors. The system of sensors transmits, through wireless communication, real-time traffic information (travel time and other parameters) to a command and control center via an NTCIP (National Transportation Communication for ITS Protocol) -compatible interface. As an alternative, an existing NTCIP-compatible system accepts the real-time traffic information mentioned and broadcasts the traffic information to emergency managers, the media and the public via the existing channels. A series of tests, both in a controlled environment and on the field, were conducted to study the feasibility of rapidly deploying the system of traffic sensors and to assess its ability to provide real-time traffic information during an emergency evacuation. The results of these tests indicated that the prototype sensors are reliable and accurate for the type of application that is the focus of this project.

Franzese, Oscar [ORNL; Zhang, Li [Mississippi State University (MSU); Mahmoud, Anas M. [Mississippi State University (MSU); Lascurain, Mary Beth [ORNL; Wen, Yi [Mississippi State University (MSU)

2010-05-01

330

Final report: Task 4a.2 20% wind scenario assessment of electric grid operational features  

SciTech Connect

Wind integration modeling in electricity generation capacity expansion models is important in that these models are often used to inform political or managerial decisions. Poor representation of wind technology leads to under-estimation of wind's contribution to future energy scenarios which may hamper growth of the industry. The NREL's Wind Energy Deployment System (WinDS) model provides the most detailed representation of geographically disperse renewable resources and the optimization of transmission expansion to access these resources. Because WinDS was selected as the primary modeling tool for the 20% Wind Energy by 2030 study, it is the ideal tool for supplemental studies of the transmission expansion results. However, as the wind industry grows and knowledge related to the wind resource and integration of wind energy into the electric system develops, the WinDS model must be continually improved through additional data and innovative algorithms to capture the primary effects of variable wind generation. The detailed representation of wind technology in the WinDS model can be used to provide improvements to the simplified representation of wind technology in other capacity expansion models. This task did not employ the WinDS model, but builds from it and its results. Task 4a.2 provides an assessment of the electric grid operational features of the 20% Wind scenario and was conducted using power flow models accepted by the utility industry. Tasks 2 provides information regarding the physical flow of electricity on the electric grid which is a critical aspect of infrastructure expansion scenarios. Expanding transmission infrastructure to access remote wind resource in a physically realizable way is essential to achieving 20% wind energy by 2030.

Toole, Gasper L. [Los Alamos National Laboratory

2009-01-01

331

Method and apparatus for monitoring machine performance  

DOEpatents

Machine operating conditions can be monitored by analyzing, in either the time or frequency domain, the spectral components of the motor current. Changes in the electric background noise, induced by mechanical variations in the machine, are correlated to changes in the operating parameters of the machine.

Smith, Stephen F. (Loudon, TN); Castleberry, Kimberly N. (Harriman, TN)

1996-01-01

332

The Bar Tack Machine. Module 16.  

ERIC Educational Resources Information Center

This module on the bar tack machine, one in a series dealing with industrial sewing machines, their attachments, and operation, covers one topic: performing special operations on the bar tack machine. These components are provided: an introduction, directions, an objective, learning activities, student information, a student self-check, and a

South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

333

The Zig Zag Machine. Module 14.  

ERIC Educational Resources Information Center

This module on the zig zag machine, one in a series dealing with industrial sewing machines, their attachments, and operation, covers one topic: performing special operations on the zig zag machine. These components are provided: an introduction, directions, an objective, learning activities, student information, a student self-check, and a

South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

334

The Button Sew Machine. Module 12.  

ERIC Educational Resources Information Center

This module on the button sew machine, one in a series dealing with industrial sewing machines, their attachments, and operation, covers one topic: performing special operations on the button sew machine. These components are provided: an introduction, direction, an objective, learning activities, student information, a student self-check, and a

South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

335

Evaluation of application for approval of alternative methodology for compliance with the NESHAP for shipbuilding and ship repair and recommended requirements for compliance (application submitted by Metro Machine Corporation, Norfolk, Virginia). Final report  

SciTech Connect

The US Environmental Protection Agency is providing background information that supports the use of Metro Machine Corporation`s (MMC) compliant all position enclosure (CAPE) plus air management system and regenerative thermal oxidizer (RTO) (CAPE + RTO System) as an alternative means of limiting the emissions of volatile organic hazardous air pollutants per volume of applied solids (nonvolatiles). This document also explains how the authors arrived at the operating, recordkeeping, and reporting conditions that MMC must meet for approval. The add-on control system they used consists of a pollution capture unit operation (CAPE) plus air management system and a destruction unit operation (RTO). When operated according to the specified procedures, it will control emissions to a level no greater than that from using coatings which comply with the limits in Table 2 of 40 CFR Part 63, Subpart II.

Serageldin, M.A.

1999-07-01

336

Final Hazard Categorization for the Remediation of Six 300-FF-2 Operable Unit Solid Waste Burial Grounds  

SciTech Connect

This report provides the final hazard categorization (FHC) for the remediation of six solid waste disposal sites (referred to as burial grounds) located in the 300-FF-2 Operable Unit (OU) on the Hanford Site. These six sites (618-1, 618-2, 618-3, 618-7, 618-8, and 618-13 Burial Grounds) were determined to have a total radionuclide inventory (WCH 2005a, WCH 2005d, WCH 2005e and WCH 2006b) that exceeds the DOE-STD-1027 Category 3 threshold quantity (DOE 1997) and are the subject of this analysis. This FHC document examines the hazards, identifies appropriate controls to manage the hazards, and documents the FHC and commitments for the 300-FF-2 Burial Grounds Remediation Project.

J. D. Ludowise

2006-12-12

337

12 CFR 205.16 - Disclosures at automated teller machines.  

Code of Federal Regulations, 2014 CFR

... false Disclosures at automated teller machines. 205.16 Section 205.16 Banks and...205.16 Disclosures at automated teller machines. (a) Definition. Automated teller machine operator means any person that...

2014-01-01

338

12 CFR 1005.16 - Disclosures at automated teller machines.  

Code of Federal Regulations, 2014 CFR

... false Disclosures at automated teller machines. 1005.16 Section 1005.16 Banks...1005.16 Disclosures at automated teller machines. (a) Definition. Automated teller machine operator means any person that...

2014-01-01

339

12 CFR 1005.16 - Disclosures at automated teller machines.  

Code of Federal Regulations, 2012 CFR

... false Disclosures at automated teller machines. 1005.16 Section 1005.16 Banks...1005.16 Disclosures at automated teller machines. (a) Definition. Automated teller machine operator means any person that...

2012-01-01

340

12 CFR 205.16 - Disclosures at automated teller machines.  

Code of Federal Regulations, 2012 CFR

... false Disclosures at automated teller machines. 205.16 Section 205.16 Banks and...205.16 Disclosures at automated teller machines. (a) Definition. Automated teller machine operator means any person that...

2012-01-01

341

12 CFR 1005.16 - Disclosures at automated teller machines.  

Code of Federal Regulations, 2013 CFR

... false Disclosures at automated teller machines. 1005.16 Section 1005.16 Banks...1005.16 Disclosures at automated teller machines. (a) Definition. Automated teller machine operator means any person that...

2013-01-01

342

12 CFR 205.16 - Disclosures at automated teller machines.  

Code of Federal Regulations, 2013 CFR

... false Disclosures at automated teller machines. 205.16 Section 205.16 Banks and...205.16 Disclosures at automated teller machines. (a) Definition. Automated teller machine operator means any person that...

2013-01-01

343

12 CFR 205.16 - Disclosures at automated teller machines.  

Code of Federal Regulations, 2010 CFR

... false Disclosures at automated teller machines. 205.16 Section 205.16 Banks and...205.16 Disclosures at automated teller machines. (a) Definition. Automated teller machine operator means any person that...

2010-01-01

344

12 CFR 205.16 - Disclosures at automated teller machines.  

Code of Federal Regulations, 2011 CFR

... false Disclosures at automated teller machines. 205.16 Section 205.16 Banks and...205.16 Disclosures at automated teller machines. (a) Definition. Automated teller machine operator means any person that...

2011-01-01

345

Setup Aid for Electrical-Discharge Machining  

NASA Technical Reports Server (NTRS)

Interlock assures that workpiece is correctly assembled in machining fixture. A Plunger in a Hollow Shaft actuates a switch, allowing a power supply to produce current for electrical-discharge machining. Plunger operates only when necessary parts are position.

Lines, G.; Duca, J.

1985-01-01

346

49 CFR 236.771 - Machine, control.  

Code of Federal Regulations, 2013 CFR

...Transportation 4 2013-10-01 2013-10-01 false Machine, control. 236.771 Section 236.771 Transportation...SYSTEMS, DEVICES, AND APPLIANCES Definitions 236.771 Machine, control. An assemblage of manually operated devices...

2013-10-01

347

49 CFR 236.771 - Machine, control.  

Code of Federal Regulations, 2011 CFR

...Transportation 4 2011-10-01 2011-10-01 false Machine, control. 236.771 Section 236.771 Transportation...SYSTEMS, DEVICES, AND APPLIANCES Definitions 236.771 Machine, control. An assemblage of manually operated devices...

2011-10-01

348

49 CFR 236.771 - Machine, control.  

Code of Federal Regulations, 2014 CFR

...Transportation 4 2014-10-01 2014-10-01 false Machine, control. 236.771 Section 236.771 Transportation...SYSTEMS, DEVICES, AND APPLIANCES Definitions 236.771 Machine, control. An assemblage of manually operated devices...

2014-10-01

349

49 CFR 236.771 - Machine, control.  

Code of Federal Regulations, 2012 CFR

...Transportation 4 2012-10-01 2012-10-01 false Machine, control. 236.771 Section 236.771 Transportation...SYSTEMS, DEVICES, AND APPLIANCES Definitions 236.771 Machine, control. An assemblage of manually operated devices...

2012-10-01

350

49 CFR 236.772 - Machine, interlocking.  

Code of Federal Regulations, 2014 CFR

... 4 2014-10-01 2014-10-01 false Machine, interlocking. 236.772 Section 236.772 Transportation Other...AND APPLIANCES Definitions 236.772 Machine, interlocking. An assemblage of manually operated levers or other...

2014-10-01

351

49 CFR 236.772 - Machine, interlocking.  

Code of Federal Regulations, 2011 CFR

... 4 2011-10-01 2011-10-01 false Machine, interlocking. 236.772 Section 236.772 Transportation Other...AND APPLIANCES Definitions 236.772 Machine, interlocking. An assemblage of manually operated levers or other...

2011-10-01

352

49 CFR 236.772 - Machine, interlocking.  

Code of Federal Regulations, 2013 CFR

... 4 2013-10-01 2013-10-01 false Machine, interlocking. 236.772 Section 236.772 Transportation Other...AND APPLIANCES Definitions 236.772 Machine, interlocking. An assemblage of manually operated levers or other...

2013-10-01

353

49 CFR 236.772 - Machine, interlocking.  

Code of Federal Regulations, 2012 CFR

... 4 2012-10-01 2012-10-01 false Machine, interlocking. 236.772 Section 236.772 Transportation Other...AND APPLIANCES Definitions 236.772 Machine, interlocking. An assemblage of manually operated levers or other...

2012-10-01

354

Mobile machine hazardous working zone warning system  

SciTech Connect

A warning system is provided for a mobile working machine to alert an individual of a potentially dangerous condition in the event the individual strays into a hazardous working zone of the machine. The warning system includes a transmitter mounted on the machine and operable to generate a uniform magnetic field projecting beyond an outer periphery of the machine in defining a hazardous working zone around the machine during operation thereof. A receiver, carried by the individual and activated by the magnetic field, provides an alarm signal to alert the individual when he enters the hazardous working zone of the machine.

Schiffbauer, William H. (Connellsville, PA); Ganoe, Carl W. (Pittsburgh, PA)

1999-01-01

355

Mobile machine hazardous working zone warning system  

DOEpatents

A warning system is provided for a mobile working machine to alert an individual of a potentially dangerous condition in the event the individual strays into a hazardous working zone of the machine. The warning system includes a transmitter mounted on the machine and operable to generate a uniform magnetic field projecting beyond an outer periphery of the machine in defining a hazardous working zone around the machine during operation. A receiver, carried by the individual and activated by the magnetic field, provides an alarm signal to alert the individual when he enters the hazardous working zone of the machine. 3 figs.

Schiffbauer, W.H.; Ganoe, C.W.

1999-08-17

356

Automated fiber pigtailing machine  

DOEpatents

The Automated Fiber Pigtailing Machine (AFPM) aligns and attaches optical fibers to optoelectronic (OE) devices such as laser diodes, photodiodes, and waveguide devices without operator intervention. The so-called pigtailing process is completed with sub-micron accuracies in less than 3 minutes. The AFPM operates unattended for one hour, is modular in design and is compatible with a mass production manufacturing environment. This machine can be used to build components which are used in military aircraft navigation systems, computer systems, communications systems and in the construction of diagnostics and experimental systems. 26 figs.

Strand, O.T.; Lowry, M.E.

1999-01-05

357

Automated fiber pigtailing machine  

DOEpatents

The Automated Fiber Pigtailing Machine (AFPM) aligns and attaches optical fibers to optoelectonic (OE) devices such as laser diodes, photodiodes, and waveguide devices without operator intervention. The so-called pigtailing process is completed with sub-micron accuracies in less than 3 minutes. The AFPM operates unattended for one hour, is modular in design and is compatible with a mass production manufacturing environment. This machine can be used to build components which are used in military aircraft navigation systems, computer systems, communications systems and in the construction of diagnostics and experimental systems.

Strand, Oliver T. (Castro Valley, CA); Lowry, Mark E. (Castro Valley, CA)

1999-01-01

358

Automated characterisation of ultrasound images of ovarian tumours: the diagnostic accuracy of a support vector machine and image processing with a local binary pattern operator  

PubMed Central

Introduction: Preoperative characterisation of ovarian masses into benign or malignant is of paramount importance to optimise patient management. Objectives: In this study, we developed and validated a computerised model to characterise ovarian masses as benign or malignant. Materials and methods: Transvaginal 2D B mode static ultrasound images of 187 ovarian masses with known histological diagnosis were included. Images were first pre-processed and enhanced, and Local Binary Pattern Histograms were then extracted from 2 2 blocks of each image. A Support Vector Machine (SVM) was trained using stratified cross validation with randomised sampling. The process was repeated 15 times and in each round 100 images were randomly selected. Results: The SVM classified the original non-treated static images as benign or malignant masses with an average accuracy of 0.62 (95% CI: 0.59-0.65). This performance significantly improved to an average accuracy of 0.77 (95% CI: 0.75-0.79) when images were pre-processed, enhanced and treated with a Local Binary Pattern operator (mean difference 0.15: 95% 0.11-0.19, p < 0.0001, two-tailed t test). Conclusion: We have shown that an SVM can classify static 2D B mode ultrasound images of ovarian masses into benign and malignant categories. The accuracy improves if texture related LBP features extracted from the images are considered.

Khazendar, S.; Sayasneh, A.; Al-Assam, H.; Du, H.; Kaijser, J.; Ferrara, L.; Timmerman, D.; Jassim, S.; Bourne, T.

2015-01-01

359

: Helmholtz machine estimation .  

E-print Network

: Helmholtz machine density estimation . . : . . . (supervised learning) , (active learning) (query learning) [1, 3]. . (unsupervised learning), . , [5]. . Helmholtz machine , . Helmholtz machine : Helmholtz machine [2] . Helmholtz machine (generative network) (recognition network) . , , . Helmholtz machine (self

360

Cost effective machining and inspection of structural ceramic components for advanced high temperature application. Final CRADA report for CRADA number Y-1292-0151  

SciTech Connect

This Cooperative Research and Development Agreement (CRADA) was a mutual research and development (R and D) effort among the participants to investigate a range of advanced manufacturing technologies for two silicon nitride (Si{sub 3}N{sub 4}) ceramic materials. The general objective was to identify the most cost-effective part manufacturing processes for the ceramic materials of interest. The focus was determining the relationship between material removal rates, surface quality, and the structural characteristics of each ceramic resulting from three innovative processes. These innovated machining processes were studied using silicon nitride advanced materials. The particular (Si{sub 3}N{sub 4}) materials of interest were sintered GS-44 from the Norton Company, and reaction-bonded Ceraloy 147-3. The processes studied included the following activities: (1) direct laser machining; (2) rotary ultrasonic machining; and (3) diamond abrasive grinding, including both resinoid and vitreous-bonded grinding wheels. Both friable and non-friable diamond types were included within the abrasive grinding study. The task also conducted a comprehensive survey of European experience in use of ceramic materials, principally aluminum oxide. Originally, the effort of this task was to extend through a prototype manufacturing demonstration of selected engine components. During the execution of this program, however changes were made to the scope of the project, altering the goals. The Program goal became only the development of assessment of their impacts on product strength and surface condition.

Abbatiello, L.A. [Lockheed Martin Energy Systems, Inc., Oak Ridge, TN (United States); Haselkorn, M. [Caterpillar, Inc., Peoria, IL (United States)

1996-11-29

361

The Final Count Down: A Review of Three Decades of Flight Controller Training Methods for Space Shuttle Mission Operations  

NASA Technical Reports Server (NTRS)

Operations of human spaceflight systems is extremely complex, therefore the training and certification of operations personnel is a critical piece of ensuring mission success. Mission Control Center (MCC-H), at the Lyndon B. Johnson Space Center, in Houston, Texas manages mission operations for the Space Shuttle Program, including the training and certification of the astronauts and flight control teams. As the space shuttle program ends in 2011, a review of how training for STS-1 was conducted compared to STS-134 will show multiple changes in training of shuttle flight controller over a thirty year period. This paper will additionally give an overview of a flight control team s makeup and responsibilities during a flight, and details on how those teams have been trained certified over the life span of the space shuttle. The training methods for developing flight controllers have evolved significantly over the last thirty years, while the core goals and competencies have remained the same. In addition, the facilities and tools used in the control center have evolved. These changes have been driven by many factors including lessons learned, technology, shuttle accidents, shifts in risk posture, and generational differences. A primary method used for training Space Shuttle flight control teams is by running mission simulations of the orbit, ascent, and entry phases, to truly "train like you fly." The reader will learn what it is like to perform a simulation as a shuttle flight controller. Finally, the paper will reflect on the lessons learned in training for the shuttle program, and how those could be applied to future human spaceflight endeavors.

Dittemore, Gary D.; Bertels, Christie

2011-01-01

362

Dynamic Simulation of Radially Oriented Permanent Magnet-Type Electronically Operated Synchronous Machines with Parameters Obtained from Finite Element Field Solutions  

Microsoft Academic Search

A dynamic model for simulation of the transient interaction between radially oriented permanent magnet-type synchronous machines and their corresponding transistorized current source power conditioners is presented. Some key machine parameters used in this dynamic model were obtained from finite element field solutions. This dynamic model was used to obtain the transient interaction between a 15-hp samarium cobalt radially oriented permanent

Thomas W. Nehl; Fakhry A. Fouad; Nabeel A. Demerdash; Edward A. Maslowski

1982-01-01

363

Rube Goldberg and the Meaning of Machines  

NSDL National Science Digital Library

Simple and compound machines are designed to make work easier. When we encounter a machine that does not fit this understanding, the so-called machine seems absurd. Through the cartoons of Rube Goldberg, students are engaged in critical thinking about the way his inventions make simple tasks even harder to complete. As the final lesson in the simple machines unit, the study of Rube Goldberg machines can help students evaluate the importance and usefulness of the many machines in the world around them.

2014-09-18

364

Paradigms for machine learning  

NASA Technical Reports Server (NTRS)

Five paradigms are described for machine learning: connectionist (neural network) methods, genetic algorithms and classifier systems, empirical methods for inducing rules and decision trees, analytic learning methods, and case-based approaches. Some dimensions are considered along with these paradigms vary in their approach to learning, and the basic methods are reviewed that are used within each framework, together with open research issues. It is argued that the similarities among the paradigms are more important than their differences, and that future work should attempt to bridge the existing boundaries. Finally, some recent developments in the field of machine learning are discussed, and their impact on both research and applications is examined.

Schlimmer, Jeffrey C.; Langley, Pat

1991-01-01

365

Machine intelligence  

Microsoft Academic Search

Under certain conditions, we appear willing to see and interact with computing machines as though they exhibited intelligence, at least an intelligence of sorts. Using exam- ples from AI and robotics research, as well as a selection of relevant art installations and anthropological fieldwork, this paper reflects on some of our interactions with the kinds of machines we seem ready

Alex S. Taylor

2009-01-01

366

Simple Machines  

NSDL National Science Digital Library

Through a five-lesson series with five activities, students are introduced to six simple machinesinclined plane, wedge, screw, lever, pulley, wheel-and-axleas well as compound machines, which are combinations of two or more simple machines. Once students understand about work (work = force x distance), they become familiar with the machines' mechanical advantages, and see how they make work easier. Through an introduction to compound machines, students begin to think critically about machine inventions and their pervasive roles in our lives. After learning about Rube Goldberg contraptionsabsurd inventions that complete simple tasks in complicated waysthey evaluate the importance and usefulness of the many machines around them. Through the hands-on activities, students draw designs for contraptions that could move a circus elephant into a rail car, create a construction site ramp design by measuring different inclined planes and calculating the ideal vs. actual mechanical advantage of each, compare the theoretical and actual mechanical advantages of different pulley systems conceived to save a whale, build and test grape catapults made with popsicle sticks and rubber bands, and follow the steps of the engineering design process to design and build Rube Goldberg machines.

Integrated Teaching and Learning Program,

367

Simple Machines  

NSDL National Science Digital Library

How do you get a glove and a ball up to your tree house? One answer is to use a pulley. A pulley is a simple machine. In this original KET interactive, children learn about the basic workings of three simple machines.

KET

2010-11-16

368

Electric machine  

DOEpatents

An interior permanent magnet electric machine is disclosed. The interior permanent magnet electric machine comprises a rotor comprising a plurality of radially placed magnets each having a proximal end and a distal end, wherein each magnet comprises a plurality of magnetic segments and at least one magnetic segment towards the distal end comprises a high resistivity magnetic material.

El-Refaie, Ayman Mohamed Fawzi (Niskayuna, NY); Reddy, Patel Bhageerath (Madison, WI)

2012-07-17

369

The Blindstitch Machine. Module 11.  

ERIC Educational Resources Information Center

This module on the purpose and use of the blindstitch machine, one in a series on clothing construction for industrial sewing machine operators designed for student self-study, contains three sections. Each section includes the following parts: an introduction, directions, an objective, learning activities, student information, student self-check,

South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

370

Improvement of reliability of welding by in-process sensing and control (development of smart welding machines for girth welding of pipes). Final report  

SciTech Connect

Closed-loop control of the welding variables represents a promising, cost-effective approach to improving weld quality and therefore reducing the total cost of producing welded structures. The ultimate goal is to place all significant weld variables under direct closed-loop control; this contrasts with preprogrammed machines which place the welding equipment under control. As the first step, an overall strategy has been formulated and an investigation of weld pool geometry control for gas tungsten arc process has been completed. The research activities were divided into the areas of arc phenomena, weld pool phenomena, sensing techniques and control activities.

Hardt, D.E.; Masubuchi, K.; Paynter, H.M.; Unkel, W.C.

1983-04-01

371

Operations  

ERIC Educational Resources Information Center

Previous research has documented schemes and operations that undergird students' understanding of fractions. This prior research was based, in large part, on small-group teaching experiments. However, written assessments are needed in order for teachers and researchers to assess students' ways of operating on a whole-class scale. In this

Wilkins, Jesse L. M.; Norton, Anderson; Boyce, Steven J.

2013-01-01

372

Residential and commercial space heating and cooling with possible greenhouse operation; Baca Grande development, San Luis Valley, Colorado. Final report  

SciTech Connect

A feasibility study was performed to evaluate the potential of multipurpose applications of moderate-temperature geothermal waters in the vicinity of the Baca Grande community development in the San Luis Valley, Colorado. The project resource assessment, based on a thorough review of existing data, indicates that a substantial resource likely exists in the Baca Grande region capable of supporting residential and light industrial activity. Engineering designs were developed for geothermal district heating systems for space heating and domestic hot water heating for residences, including a mobile home park, an existing motel, a greenhouse complex, and other small commercial uses such as aquaculture. In addition, a thorough institutional analysis of the study area was performed to highlight factors which might pose barriers to the ultimate commercial development of the resource. Finally, an environmental evaluation of the possible impacts of the proposed action was also performed. The feasibility evaluation indicates the economics of the residential areas are dependent on the continued rate of housing construction. If essentially complete development could occur over a 30-year period, the economics are favorable as compared to existing alternatives. For the commercial area, the economics are good as compared to existing conventional energy sources. This is especially true as related to proposed greenhouse operations. The institutional and environmental analyses indicates that no significant barriers to development are apparent.

Goering, S.W.; Garing, K.L.; Coury, G.E.; Fritzler, E.A.

1980-05-01

373

Final report study of alternatives for future operations of the naval petroleum and oil shale reserves NPR-2, California  

SciTech Connect

The US Department of Energy (DOE) has asked Gustavson Associates, Inc. to serve as an Independent Petroleum Consultant under contract DE-AC01-96FE64202. This authorizes a study and recommendations regarding future development of Naval Petroleum Reserve No. 2 (NPR-2) in Kern County, California. The report that follows is the Phase II Final Report for that study. Additional details are provided in the Addendum (the Phase I Property Description and Fact Finding Report). The key property elements that positively affect the estimated value of NPR-2 include the following: royalty income from producing oil and gas leases, rental income from non-producing oil and gas leases, income from grazing or leasing of grazing rights, potential income from oil and gas leasing on exploratory (or nonprospective) acreage, potential value of trading surface real estate as ranch land for sheep grazing (10,044 acres), and town lots for residential or commercial development (16.7 acres). Key elements that negatively impact the estimated value include: environmental assessment costs, operating budgets, and lease sale expenses.

NONE

1996-12-01

374

Scribbling Machines  

NSDL National Science Digital Library

In this activity, learners explore electronics and motion by making a Scribbling Machine, a motorized contraption that moves in unusual ways and leaves a mark to trace its path. Its made from simple materials and is based on the idea of motion created by an offset motor. Try using harvested motors and switches from discarded toys and electronics to make your Scribbling Machine - this not only keeps costs down, but is a playful and inventive way to explore how everyday objects work. To take the activity further, you can also incorporate PicoCrickets to make your Scribbling Machine more intelligent and to explore computers.

Exploratorium

2013-01-30

375

Reactor vessel closure stud cleaning machine  

Microsoft Academic Search

A stud cleaning machine whereby the threaded portion of very large studs can be cleaned to a semi-bright finish. The cleaning machine is designed to completely enclose the studs during the cleaning operation, so that none of the loosened oxides, residues, and caked lubricants are discharged into the surrounding atmosphere. The contaminated particles are retained in the cleaning machine and

E. A. Wennerstrom; J. S. Brown; W. E. Milligan

1979-01-01

376

15 CFR 5.5 - Vending machines.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 2013-01-01 false Vending machines. 5.5 Section 5.5 Commerce and...OPERATION OF VENDING STANDS 5.5 Vending machines. (a) The income from any vending machines which are located within reasonable...

2013-01-01

377

15 CFR 5.5 - Vending machines.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 2012-01-01 false Vending machines. 5.5 Section 5.5 Commerce and...OPERATION OF VENDING STANDS 5.5 Vending machines. (a) The income from any vending machines which are located within reasonable...

2012-01-01

378

15 CFR 5.5 - Vending machines.  

Code of Federal Regulations, 2014 CFR

...2014-01-01 2014-01-01 false Vending machines. 5.5 Section 5.5 Commerce and...OPERATION OF VENDING STANDS 5.5 Vending machines. (a) The income from any vending machines which are located within reasonable...

2014-01-01

379

The complex behavior of simple machines  

Microsoft Academic Search

This paper interprets work on understanding the actions of Turing machines operating on an initially blank tape. While this is impossible for arbitrary machines, complete characterizations of behavior are possible if the number of states is sufficiently constrained. The approach combines normalization to drastically reduce the number of machines considered, human-generated classification schemes, and computer-generated proofs of behavior. This approach

Rona Machlin; Quentin F. Stout

1990-01-01

380

15 CFR 5.5 - Vending machines.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 2011-01-01 false Vending machines. 5.5 Section 5.5 Commerce...OPERATION OF VENDING STANDS 5.5 Vending machines. (a) The income from any vending machines which are located within reasonable...

2011-01-01

381

15 CFR 5.5 - Vending machines.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 2010-01-01 false Vending machines. 5.5 Section 5.5 Commerce...OPERATION OF VENDING STANDS 5.5 Vending machines. (a) The income from any vending machines which are located within reasonable...

2010-01-01

382

Math Machines  

NSDL National Science Digital Library

The mission of the Math Machines organization is to "improve the quality of mathematical education, enhance the transfer of mathematical thinking into other classes, and increase students' ability to apply rigorous mathematics outside the classroom." Their website supports a National Science Foundation ATE grant-supported project designed to improve teaching in the areas of Mathematics, Science, and Technology at the high school and college levels. This improved learning results from using math, science, and technology principles to build and control various machines such as pointers and robots or "math machines", which are simple devices that provide an immediate, physical, dynamic expression to abstract mathematical equations. The website provides information links on Educational Theory, Classroom Activities, Project Workshops, Calculators & Programs, and Machine Construction Instructions for Building: Closed Circuits, Servo Motors, Controllers, Robot Boards and more. There is also contact information, an FAQ section, as well as upcoming events.

383

Machine therapy  

E-print Network

Machine Therapy is a new practice combining art, design, psychoanalysis, and engineering work in ways that access and reveal the vital, though often unnoticed, relevance of people's interactions and relationships with ...

Dobson, Kelly E. (Kelly Elizabeth), 1970-

2007-01-01

384

Techniac and Cost Assessment of the PCAST Machine  

E-print Network

Techniac and Cost Assessment of the PCAST Machine Final Report PCAST ITER Volume II Chapter 3 and Cost Assessment of the PCAST Machine - Final Report - Volume II Chapter 3.0 - Engineering Chapter 4 175 183 z 207 z #12;#12;Chapter 3 Engineering Design of the PCAST Machine Introduction (J. Schmidt, J

385

Operation and Performance of a Biphase Turbine Power Plant at the Cerro Prieto Geothermal Field (Final Report)  

SciTech Connect

A full scale, wellhead Biphase turbine was manufactured and installed with the balance of plant at Well 103 of the Cerro Prieto geothermal resource in Baja, California. The Biphase turbine was first synchronized with the electrical grid of Comision Federal de Electricidad on August 20, 1997. The Biphase power plant was operated from that time until May 23, 2000, a period of 2 years and 9 months. A total of 77,549 kWh were delivered to the grid. The power plant was subsequently placed in a standby condition pending replacement of the rotor with a newly designed, higher power rotor and replacement of the bearings and seals. The maximum measured power output of the Biphase turbine, 808 kWe at 640 psig wellhead pressure, agreed closely with the predicted output, 840 kWe. When combined with the backpressure steam turbine the total output power from that flow would be increased by 40% above the power derived only from the flow by the present flash steam plant. The design relations used to predict performance and design the turbine were verified by these tests. The performance and durability of the Biphase turbine support the conclusion of the Economics and Application Report previously published, (Appendix A). The newly designed rotor (the Dual Pressure Rotor) was analyzed for the above power condition. The Dual Pressure Rotor would increase the power output to 2064 kWe by incorporating two pressure letdown stages in the Biphase rotor, eliminating the requirement for a backpressure steam turbine. The power plant availability was low due to deposition of solids from the well on the Biphase rotor and balance of plant problems. A great deal of plant down time resulted from the requirement to develop methods to handle the solids and from testing the apparatus in the Biphase turbine. Finally an online, washing method using the high pressure two-phase flow was developed which completely eliminated the solids problem. The availability of the Biphase turbine itself was 100% after implementations of this method in March 2000. However, failures of instrumentation and control system components led to additional plant down time and damage to the bearings and seals. The enthalpy and pressure of well 103 declined substantially from the inception of the project. When the project was started the wellhead pressure and enthalpy were 760 psig and 882 Btu/lb respectively. At the time the plant was placed in standby the corresponding values were only 525 psig and 658 Btu/lb. This reduced the available plant power to only 400 kWe making the project economically unfeasible. However, replacement of the existing rotor with the Dual Pressure Rotor and replacement of the bearings and seals will enable the existing Biphase turbine to produce 1190 kWe at the present well conditions without the backpressure steam turbine. Operation with the present staff can then be sustained by selling power under the existing Agreement with CFE. Implementation of this option is recommended with operation of the facility to continue as a demonstration plant. Biphase turbine theory, design and performance are reported herein. The construction of the Biphase turbine and power plant and operational experience are detailed. Improvements in the Biphase turbine are indicated and analyzed. The impact of Biphase techonology on geothermal power production is discussed and recommendations made.

Hays, Lance G. [Douglas Energy Company, Placentia, CA (United States)

2000-09-01

386

IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, DOI: 10.1109/TPAMI.2012.272. AUTHOR FINAL DRAFT 1 Deep Hierarchies in the Primate Visual Cortex  

E-print Network

FINAL DRAFT 1 Deep Hierarchies in the Primate Visual Cortex: What Can We Learn For Computer Vision´iguez-S´anchez, Laurenz Wiskott Abstract--Computational modeling of the primate visual system yields insights of potential the primate visual cortex, and attempts to extract biological principles that could further advance computer

Wiskott, Laurenz

387

A Review of Experience: Establishing, Operating, Evaluating a Demonstration Nursery Center for the Daytime Care of Infants and Toddlers, 1967-1970. Final Report.  

ERIC Educational Resources Information Center

This document is the final report of Phase One (1967-1970) of the Group Care of Infants Demonstration (Center) Project. This report devotes major attention to the problems of establishing, operating, and evaluating a group day care center for infant and toddler care. The Center project describes what is required to provide housing, equipment,

Keister, Mary Elizabeth

388

Machine Vision  

NSDL National Science Digital Library

An overview of a generic image-based machine vision system is provided on this Web site (1). The tutorial describes the main components of such a system, how its accuracy is measured, and what scientific and industrial applications benefit from machine vision. A more technical perspective of machine vision technology is given in an online publication of the Automated Imaging Association (2). Monthly feature articles discuss breaking issues related to machine vision, and several technical papers can be downloaded, which are sorted into categories such as three dimensional imaging and nanotechnology. Researchers from the MIT's Artificial Intelligence Laboratory (3) are investigating how to enable a computer to interpret visual and audio signals from its human user. By using machine perception systems to track the user's gaze, for example, the computer could ascertain the focus of the user's attention, thereby facilitating interaction between the human and the computer. The project's homepage includes numerous research papers, as well as video demonstrations of some of its systems. Machine vision is also finding its way into vehicles. A March 2003 news article (4) highlights a field test in Michigan of a collision avoidance system that uses, among other things, machine vision to warn drivers that they are approaching a slower or stopped object too quickly. The 3D Computer Vision Group at Carnegie Mellon University (5) is involved in several projects, including three dimensional object recognition and humanoid robot vision. Many of the group's recent publications are available for download. NASA's Mars Exploration Rovers, the second of which was launched in July 2003, have vision systems that will let them safely navigate rough terrain. These systems are described in this conference paper (6), including specifics of the stereo vision algorithm and insights into future missions. A new implementation of machine vision comes from a former researcher from Cambridge University. His shape recognition system, which is detailed in this news article (7), is reportedly much more related to human visual processes than existing techniques. For additional developments related to this evolving technology, Machine Vision News (8) has information about worldwide research and new applications of machine vision systems.

Leske, Cavin.

389

76 FR 70169 - Draft Supplement 2 to Final Environmental Statement Related to the Operation of Watts Bar Nuclear...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Authority AGENCY: Nuclear Regulatory Commission (NRC). ACTION: Draft environmental statement; opportunity...The U.S. Nuclear Regulatory Commission (NRC) is...NUREG-0498, ``Final Environmental Statement,...

2011-11-10

390

Automatic Production Planning System to Achieve Flexible Direct Machining  

NASA Astrophysics Data System (ADS)

For shortening of production lead-time, it is needed to eliminate time and efforts for process and operation planning after product design. However, a conventional NC machine tool has no autonomy and intelligence to achieve direct machining operation or Rapid Manufacturing. Because CL data and cutting parameters for machining operation have to be determined precisely in process and operation planning. In this study, in order to realize an autonomous and intelligent machine tool, the digital copy milling system which allows to generate tool paths during machining operation, and the trouble free machining strategy which allows to adapt cutting parameters, have been developed. And, an automatic process and operation planning system has been developed to integrate with the functions mentioned. This planning system works on commercial CAD software, and a prototype of autonomous and intelligent machine tool can achieve direct machining operation or Rapid Manufacturing which does not require any effort to prepare an NC program.

Nakamoto, Keiichi; Shirase, Keiichi; Wakamatsu, Hidefumi; Tsumaya, Akira; Arai, Eiji

391

Extreme ultraviolet lithography machine  

DOEpatents

An extreme ultraviolet lithography (EUVL) machine or system for producing integrated circuit (IC) components, such as transistors, formed on a substrate. The EUVL machine utilizes a laser plasma point source directed via an optical arrangement onto a mask or reticle which is reflected by a multiple mirror system onto the substrate or target. The EUVL machine operates in the 10-14 nm wavelength soft x-ray photon. Basically the EUV machine includes an evacuated source chamber, an evacuated main or project chamber interconnected by a transport tube arrangement, wherein a laser beam is directed into a plasma generator which produces an illumination beam which is directed by optics from the source chamber through the connecting tube, into the projection chamber, and onto the reticle or mask, from which a patterned beam is reflected by optics in a projection optics (PO) box mounted in the main or projection chamber onto the substrate. In one embodiment of a EUVL machine, nine optical components are utilized, with four of the optical components located in the PO box. The main or projection chamber includes vibration isolators for the PO box and a vibration isolator mounting for the substrate, with the main or projection chamber being mounted on a support structure and being isolated.

Tichenor, Daniel A. (Castro Valley, CA); Kubiak, Glenn D. (Livermore, CA); Haney, Steven J. (Tracy, CA); Sweeney, Donald W. (San Ramon, CA)

2000-01-01

392

High-intensity drying processes -- Impulse drying: Report 15 (final report). Production of linerboard on a pilot paper machine, subsequent commercial converting trials and preliminary economic assessment  

SciTech Connect

In September 1998, 33{number_sign} liner was produced on the {number_sign}4 pilot machine under both single-felted wet pressing and impulse drying conditions. In October 1998, the pilot produced liner and commercial liner were converted to combined board and corrugated boxes at a commercial box plant. In January 1999, linerboard, medium, and combined board and box testing were completed. The pilot trials demonstrated that 33{number_sign} liner could be impulse dried at a reel speed of 380 m/min. Press dryness was improved by as much as 4 points, while CD STFI and CD ring crush were improved by more than 10%. Improvements to the smoothness of heated side of sheet were also realized. Commercial box plant converting trials demonstrated that impulse dried linerboard can be used to increase ECT and box compression strength by as much as 10%. As anticipated, print quality was found to be superior. A preliminary economic analysis was performed in which an impulse dryer would increase press dryness by 4 points and would allow the basis weight to be reduced by 10%. The economic model showed that the 4 points in dryness would translate to a 17% tonnage increase. Applying the 10% basis weight reduction resulted in an increase in productivity, on an area basis, of 30%. The pulp cost savings was found to outweigh any additional electric power costs.

Orloff, D.I.

1999-04-01

393

Operational Readiness Review Final Report for Implementation of an Increased Facility Radioactive Source Inventory Limit & Shippingport Fuel 07\\/2002  

Microsoft Academic Search

An Operational Readiness Review (ORR) was conducted by the US Department of Energy (DOE), Richland Operations Office (RL) to verify that an adequate state of readiness had been achieved for those activities associated with the removal of Shippingport fuel from the 271-T Facility (T Plant) as a Hazard Category 2 nuclear facility and the readiness of T Plant to operate

2002-01-01

394

Culture Machine  

NSDL National Science Digital Library

Culture Machine is a new, refereed, electronic journal encompassing cultural studies and cultural theory. The international editorial board of the interactive journal aims to "generat[e] research in culture and theory" by promoting and publishing "the most provocative of new work." The theme of the inaugural issue is Taking Risks with the Future. Content includes articles such as Life After Death of the Text by Johan Fornas, Cultural Studies in the Clouds: Mourning for Detail by Tadeusz Slawek, and The Future States of Politics by Kenneth Surin. Culture Machine is hosted by the University of Teesside, England.

395

Workout Machine  

NASA Technical Reports Server (NTRS)

The Orbotron is a tri-axle exercise machine patterned after a NASA training simulator for astronaut orientation in the microgravity of space. It has three orbiting rings corresponding to roll, pitch and yaw. The user is in the middle of the inner ring with the stomach remaining in the center of all axes, eliminating dizziness. Human power starts the rings spinning, unlike the NASA air-powered system. Marketed by Fantasy Factory (formerly Orbotron, Inc.), the machine can improve aerobic capacity, strength and endurance in five to seven minute workouts.

1995-01-01

396

U.S. DOE/RL OPERATIONS OFFICE FINAL REPORT FOR THE OPERATIONAL READINESS REVIEW FOR STARTUP OF THE K BASIN SLUDGE WATER SYSTEM  

SciTech Connect

An Operational Readiness Review (ORR) was conducted by the U.S. Department of Energy (DOE), Richland Operations Office (RL) to verify that an adequate state of readiness has been achieved for startup of the K East Basin Sludge Water System (SWS) as applied to the North Loadout Pit (NLOP). The DOE ORR was conducted during the period of May 19-26, 2004. The DOE ORR Team has concluded that the K Basins SWS is ready to start operations, subject to completion and verification of identified pre-start findings. The ORR was conducted in accordance with the Spent Nuclear Fuel (SNF) K Basin Sludge Water System (SWS) Operational Readiness Review (ORR) Plan of Action, December 19, 2003, and the Implementation Plan for the Operational Readiness Review for Startup of the K Basins Sludge Wafer System North Loadout Pit, DOE/RL-2003-21, Rev. 1. Review activities consisted of staff interviews, procedure and document reviews, observations of normal facility operations and operational drills and actual upset conditions that occurred during the ORR. The DOE ORR Team also reviewed and assessed the adequacy of the contractor ORR and the RL Line Management Review. The ORR Team generally concurs with the findings and observations of these previous assessments. Detailed comments regarding these reviews are documented herein.

IRWIN, R.M.

2004-06-15

397

Virtual machine time travel using continuous data protection and checkpointing  

Microsoft Academic Search

Virtual machine (VM) time travel enables reverting a vir- tual machine's state, both transient and persistent, to past points in time. This capability can be used to improve vir- tual machine availability, to enable forensics on past VM states, and to recover from operator errors. We present an approach to virtual machine time travel which combines Continuous Data Protection (CDP)

Paula Ta-shma; Guy Laden; Muli Ben-yehuda; Michael Factor

2008-01-01

398

Decoding Machine  

NSDL National Science Digital Library

In this math lesson, learners explore variables and their uses. Learners pretend to be FBI agents and make a TOP SECRET tool that enables them to decode and find the values of hidden messages and words. Learners make their simple "decoding machines" out of paper and tape.

Utah LessonPlans

2012-10-22

399

Function Machine  

NSDL National Science Digital Library

This Java applet allows learners to explore simple linear functions. Students determine the algebraic form of a linear equation by entering inputs into the machine and by looking for patterns in the outputs. The function rules available are: integers from -10 to 10 are either added to, subtracted from, or multiplied by the input x to yield the output y.

2011-01-01

400

Wacky Machines  

ERIC Educational Resources Information Center

Collectors everywhere know that local antique shops and flea markets are treasure troves just waiting to be plundered. Science teachers might take a hint from these hobbyists, for the next community yard sale might be a repository of old, quirky items that are just the things to get students thinking about simple machines. By introducing some

Fendrich, Jean

2002-01-01

401

Leonardo's Machines  

NSDL National Science Digital Library

This Science NetLinks lesson will highlight some of Leonardo da Vinci's futuristic inventions, introducing the elements of machines. Through the use of student interactives, this lesson provides an interesting context in which students can begin to develop their ideas about the uniqueness of humans in the natural world.

Science Netlinks

2003-03-05

402

Integrated Inverter For Driving Multiple Electric Machines  

DOEpatents

An electric machine drive (50) has a plurality of inverters (50a, 50b) for controlling respective electric machines (57, 62), which may include a three-phase main traction machine (57) and two-phase accessory machines (62) in a hybrid or electric vehicle. The drive (50) has a common control section (53, 54) for controlling the plurality of inverters (50a, 50b) with only one microelectronic processor (54) for controlling the plurality of inverters (50a, 50b), only one gate driver circuit (53) for controlling conduction of semiconductor switches (S1-S10) in the plurality of inverters (50a, 50b), and also includes a common dc bus (70), a common dc bus filtering capacitor (C1) and a common dc bus voltage sensor (67). The electric machines (57, 62) may be synchronous machines, induction machines, or PM machines and may be operated in a motoring mode or a generating mode.

Su, Gui-Jia [Knoxville, TN; Hsu, John S [Oak Ridge, TN

2006-04-04

403

A brief summary of the OSHA interim final rule on ''hazardous waste operations and emergency response'' and implications for federal facilities  

SciTech Connect

This report is a short briefing document to help OEGC in understanding the scope and provisions of the Occupational Safety and Health Administration's (OSHA's) interim final rule for protection of workers engaged in operations involving hazardous waste, assessing the rule's impact on hazardous waste operations conducted by the DOE and its contractors, and preparing guidance to DOE field offices for compliance with the rule. The rule, ''Hazardous Waste Operations and Emergency Response; Interim Final Rule,'' is effective immediately and remains in effect until a final rule is promulgated by October 17, 1988. The new rule adds a new section containing employee protection requirements for workers engaged in hazardous waste operations, including emergency response to hazardous substance incidents. The rule includes provisions for site characterization, analysis, and control; employee training and medical surveillance; and engineering controls, work practices, and personal protective equipment (PPE). Workers engaged in hazardous waste activities are to receive 40 hours of classroom training and 3 days of field training before working at hazardous waste sites. Additional training is required for workers exposed to unique or special hazards and managers and supervisors directly responsible for hazardous waste site operations. It is not clear whether a federal facility, itself, or its contractor must train contract workers, although the rule indicates that such training must occur before hazardous substance and waste handling operations commence. For purposes of confidentiality, any training or medical records retained by a facility for purposes of compliance with the rule should be maintained separate from other employee personal records. States may enact more stringent standards. 4 refs., 1 tab.

Baes, C.F. III; Mrochek, J.E.; Aldrich, T.E.; Glatthaar, C.L.

1987-08-01

404

Princeton Plasma Physics Laboratory NSTX Machine Proposal  

E-print Network

Princeton Plasma Physics Laboratory NSTX Machine Proposal Title: Initial Operations of beams from ____________________________________ #12;OP-XMP-60 3 / 6 NSTX MACHINE PROPOSAL TITLE: Initial operations of NBI from the PCS No. OP-XMP-60. ___________________ Shot number 3. Reload fiducial discharge. Enter standard fiducial beam waveforms through the PCS. (A

Princeton Plasma Physics Laboratory

405

The Machining of Freeform Micro Moulds by Micro EDM; Work in Progress  

Microsoft Academic Search

Micro EDM has proved to be a versatile micro machining technology to produce complex threedimensional structures. An additional WEDG (Wire Electro Discharge Grinding) unit allows shaping of the tool electrode on the EDM-machine itself increasing the machining flexibility and machining performances. Micro moulds, with basic shapes, are machined to check both their mouldability and demouldability. Finally a micro mould is

W. Meeusen; D. Reynaerts; J. Peirs; H. Van Brussel; V. Dierickx; W. Driesen

406

TOKOPS: Tokamak Reactor Operations Study: The influence of reactor operations on the design and performance of tokamaks with solid-breeder blankets: Final report  

SciTech Connect

Reactor system operation and procedures have a profound impact on the conception and design of power plants. These issues are studied here using a model tokamak system employing a solid-breeder blanket. The model blanket is one which has evolved from the STARFIRE and BCSS studies. The reactor parameters are similar to those characterizing near-term fusion engineering reactors such as INTOR or NET (Next European Tokamak). Plasma startup, burn analysis, and methods for operation at various levels of output power are studied. A critical, and complicating, element is found to be the self-consistent electromagnetic response of the system, including the presence of the blanket and the resulting forces and loadings. Fractional power operation, and the strategy for burn control, is found to vary depending on the scaling law for energy confinement, and an extensive study is reported. Full-power reactor operation is at a neutron wall loading pf 5 MW/m/sup 2/ and a surface heat flux of 1 MW/m/sup 2/. The blanket is a pressurized steel module with bare beryllium rods and low-activation HT-9-(9-C-) clad LiAlO/sub 2/ rods. The helium coolant pressure is 5 MPa, entering the module at 297/sup 0/C and exiting at 550/sup 0/C. The system power output is rated at 1000 MW(e). In this report, we present our findings on various operational scenarios and their impact on system design. We first start with the salient aspects of operational physics. Time-dependent analyses of the blanket and balance of plant are then presented. Separate abstracts are included for each chapter.

Conn, R.W.; Ghoniem, N.M.; Firestone, M.A. (eds.)

1986-09-01

407

The Gamma Database Machine Project  

Microsoft Academic Search

This paper describes the design of the Gamma database machine and the techniques employed in its implementation.Gamma is a relational database machine currently operating on an Intel iPSC\\/2 hypercube with 32 processorsand 32 disk drives. Gamma employs three key technical ideas which enable the architecture to be scaled to100s of processors. First, all relations are horizontally partitioned across multiple disk

David J. Dewitt; Shahram Ghandeharizadeh; Donovan A. Schneider; Allan Bricker; Hui-i Hsiao; Rick Rasmussen

1990-01-01

408

The gamma database machine project  

Microsoft Academic Search

ABSTRACT This paper describes the design of the Gamma,database machine,and the techniques employed,in its implementation. Gamma,is a relational database machine,currently operating on an Intel iPSC\\/2 hypercube,with 32 processors and 32 disk drives. Gamma,employs,three key technical ideas which enable the architecture to be scaled to 100s of processors. First, all relations are horizontally partitioned across multiple disk drives enabling relations to

D. Dewitt; S. Ghandeharizadeh; D. Schneider; A. Bricker; H Hsiao

1988-01-01

409

The J-Machine Network  

Microsoft Academic Search

The J-Machine network is a 3-D mesh employing worm- hole routing and virtual channels to provide two network priorities. Each network channel is 9 bits wide and oper- ates at 32MHz. Each J-Machine node contains network routers that guide messages between the six bidirectional channels incident on each node, and a network interface that handles messages originating or terminating at

Peter R. Nuth; William J. Dally

1992-01-01

410

76 FR 80409 - Draft Supplement 2 to Final Environmental Statement Related to the Operation of Watts Bar Nuclear...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Statement Related to the Operation of Watts Bar Nuclear Plant, Unit 2; Tennessee Valley...Supplement 2, Related to the Operation of Watts Bar Nuclear Plant [WBN], Unit 2--Draft...Commission. Stephen J. Campbell, Chief, Watts Bar Special Projects Branch, Division of...

2011-12-23

411

A Generalized Deletion Machine  

E-print Network

In this work we prescribe a more generalized quantum-deleting machine (input state dependent). The fidelity of deletion is dependent on some machine parameters such that on alteration of machine parameters we get back to standard deleting machines. We also carried out a various comparative study of various kinds of quantum deleting machines. We also plotted graphs, making a comparative study of fidelity of deletion of the deletion machines, obtained as particular cases on changing the machine parameters of our machine.

Indranil Chakrabarty; Satyabrata Adhikari

2005-11-22

412

Electrical machine having controlled characteristics and its application to a wind-driven machine  

SciTech Connect

The invention provides an electrical machine having an inductor and an armature, one of which has at least two independent winding assemblies. The switching into and out of circuit of each winding assembly is controlled by a processor which receives monitoring parameters of the machine and desired value parameters, thereby controlling in real time the operating characteristics of the machine. The machine may be a winddriven generator.

Berna, M.; Kant, M.; Seger, R.; Vilain, J.P.

1983-07-26

413

Coal unit trains: operations, maintenance, and technology. Volume 2. Impact of coal unit trains on operation and maintenance costs. Final report  

Microsoft Academic Search

The Electric Power Industry is heavily committed to moving the coal it uses by means of unit trains. Because the cost it incurs for coal transportation is reflective of the cost to the railroads for operating unit trains, and to the cost to itself for the cars it owns, the electric industry has an increasing need to accurately understand these

P. R. Nayak; P. D. Mattison

1984-01-01

414

State-Machine Replication  

E-print Network

State-Machine Replication #12;The Problem Clients Server #12;The Problem Clients Server #12;The (state machine) #12;The Solution 1. Make server deterministic (state machine) State machine #12;The Solution 1. Make server deterministic (state machine) 2. Replicate server State machines #12;The Solution 1

Venkataramani, Arun

415

The Single Needle Lockstitch Machine. Module 1.  

ERIC Educational Resources Information Center

This module on parts of the machine, one in a series on the single needle lockstitch sewing machine for student self-study, contains eight sections. Each section contains the following parts: an introduction, directions, an objective, learning activities, student information, student self-check, check-out activities, and an instructor's final

South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

416

Simple Machines  

NSDL National Science Digital Library

The goals for this introduction activity to Simple Machines are.: - Generate scientific questions about the world based on observation - Design and conduct scientific investigations - Use tools and equipment appropriate to scientific investigations - Use sources of information in support of scientific investigation - Write and follow procedures in the form of step-by-step instructions, formulas, flow diagram, and sketches - Show how common themes of science, mathematics, and technology apply in real-world contexts - Recognize the contributions made in science by cultures and individuals of diverse backgrounds - Design strategies for moving objects by application of forces, including the use of simple machines MERC Online Reviewer Comments: Good computer activities for under-represented students who want to pursue manufacturing education. Distance Learning is a plus.

Wakild, Terri

417

Living Machines  

Microsoft Academic Search

\\u000a Ecological studies have revealed that nature has an in-built system to restore itself, thereby sustaining its continuity.\\u000a In other words, natural ecosystems can act as Living Machines in keeping the ecosystems habitable. The biological communities\\u000a microbes, plants, and animals serve as the driving force of several living technological innovations constructed wetlands,\\u000a Lake Restores, Eco-Restorers, and Reedbeds. These

Yung-Tse Hung; Joseph F. Hawumba; Lawrence K. Wang

418

Etude et simulation des groupes convertisseurs-machines synchrones a six phases  

NASA Astrophysics Data System (ADS)

Since many years, multiphase (n > 3) machines represent a growing research interest in the electrical machines domain. This type of machine can be used for many systems like automotive electrical traction, electric ship propulsion, wind farms or high-power industrial applications. Above all multiphase machines, the six phases wounded rotor synchronous machine brings a huge interest. Subsequently, using that kind of machine in any application requires a good understanding of the machine model and its respective converters. Hence, simulation represents a great way to study the behaviour and design of such applications that uses six phases wounded rotor synchronous machines. The present research concerns the study and simulation of six phase synchronous machinesconverters systems. From this project resulted the implementation of the six phases wound rotor salient pole synchronous machine in the Demos library of Matlab SimPowerSytems. In terms of study, a six phase machine electric drive is designed as well as a six phase machine implementation in a type 4 wind farm. The modeling of the six phase synchronous machine is fully detailed for the electrical part and the mechanical part. Then, the voltage source inverter electric drive with hysteresis control is conceived. Simulations of torque control, speed control and degraded mode of the machine are executed. The results illustrate the electric drive efficiency. This is followed by the type 4 wind turbine application of the machine. The wind farm is connected to a 120 kV grid, where a voltage drop fault appears at the 120 kV bar for a duration of six 60 Hz cycles. The results show a good operation of the regulators during the fault. This application is also subjected to a degraded mode, where results illustrate once again a good system regulation. Also, for the electric drive and the wind farm applications, a comparative study is made for the use of an asymmetrical versus symmetrical winding configuration of the machine. It is shown that for these two configurations, the total harmonic distortion seen from the source are similar. Finally, detailed model and average model of the converters are made for the electric drive and the wind turbine. The results show great similarity between the models.

Doyon, Jean-Francois

419

EERF (Eastern Environmental Radiation Facility) standard operating procedures for radon-222 measurement using charcoal canisters. Final report  

SciTech Connect

This report describes in detail EPA's office of Radiation Programs Eastern Environmental Radiation Facility's standard operating procedures for radon-222 measurement using charcoal canisters. It lists the materials and equipment that are used and explains their laboratory and survey methods.

Gray, D.J.; Windham, S.T.

1987-06-01

420

Dredging Operations Technical-Support Program. A framework for assessing the need for seasonal restrictions on dredging and disposal operations. Final report  

SciTech Connect

Seasonal restrictions on dredging and/or disposal operations are based upon concerns about potential dredging- or disposal-induced negative impacts to biological resources. In many cases, however, information on the degree to which either naturally occurring or dredging-induced environmental alterations directly or indirectly affect organisms is poorly quantified, in which case restrictions are based upon a reason to believe notion. This report addresses the general acceptability of seasonal restrictions through a compilation of available information on physical-chemical environmental alterations associated with dredging and disposal operations, and critical information regarding the effects of these alterations on principal biological resources. Based on this information, a method for evaluating existing or proposed seasonal restrictions on dredging and/or disposal operations is presented. This framework reflects the present understanding of effects of dredging- or disposal-induced, as well as naturally occurring, environmental alterations upon biological resources. In many cases, the magnitude of dredging- or disposal-induced alterations falls well within the range of naturally occurring phenomena and imposes little or no additional stress upon resource populations. In some cases, however, the magnitude of alterations may exceed that which occurs naturally, whereby concerns about dredging- or disposal-induced alterations are justified and should be considered when planning a project.

LaSalle, M.W.; Clarke, D.G.; Homziak, J.; Lunz, J.D.; Fredette, T.J.

1991-07-01

421

Administrative simplification: adoption of operating rules for eligibility for a health plan and health care claim status transactions. Interim final rule with comment period.  

PubMed

Section 1104 of the Administrative Simplification provisions of the Patient Protection and Affordable Care Act (hereafter referred to as the Affordable Care Act) establishes new requirements for administrative transactions that will improve the utility of the existing HIPAA transactions and reduce administrative costs. Specifically, in section 1104(b)(2) of the Affordable Care Act, Congress required the adoption of operating rules for the health care industry and directed the Secretary of Health and Human Services to "adopt a single set of operating rules for each transaction * * * with the goal of creating as much uniformity in the implementation of the electronic standards as possible." This interim final rule with comment period adopts operating rules for two Health Insurance Portability and Accountability Act of 1996 (HIPAA) transactions: eligibility for a health plan and health care claim status. This rule also defines the term "operating rules" and explains the role of operating rules in relation to the adopted transaction standards. In general, transaction standards adopted under HIPAA enable electronic data interchange through a common interchange structure, thus minimizing the industry's reliance on multiple formats. Operating rules, in turn, attempt to define the rights and responsibilities of all parties, security requirements, transmission formats, response times, liabilities, exception processing, error resolution and more, in order to facilitate successful interoperability between data systems of different entities. PMID:21739765

2011-07-01

422

The Intimate Machine  

NSDL National Science Digital Library

This episode of the PBS television show Scientific American Frontiers, entitled "The Intimate Machine," aired on October 22, 2002. The show is divided into four segments. Interactive, animated computer characters created at the MIT Media Lab are the focus of the first part. The second shows a virtual dog that, just like a real pet, can be trained. Advanced monitoring devices that recognize human emotions are examined in the third segment, while the final part demonstrates a furry robot that emulates human emotions. In addition to being able to view the hour-long episode in streaming video on this site, users can also browse certain Web features.

2002-01-01

423

Columbia River System Operation Review : Final Environmental Impact Statement, Appendix C: Anadromous Fish and Juvenile Fish Transportation.  

SciTech Connect

This Appendix C of the Final Environmental Impact Statement for the Columbia River System discusses impacts on andromous fish and juvenile fish transportation. The principal andromous fish in the Columbia basin include salmonid species (Chinook, coho, and sockeye salmon, and steelhead) and nonsalmoinid andromous species (sturgeon, lamprey, and shad). Major sections in this document include the following: background, scope and process; affected environment for salmon and steelhead, shaded, lamprey, sturgeon; study methods; description of alternatives: qualitative and quantitative findings.

Columbia River System Operation Review (U.S.)

1995-11-01

424

The Final Count Down: A Review of Three Decades of Flight Controller Training Methods for Space Shuttle Mission Operations  

NASA Technical Reports Server (NTRS)

Operations of human spaceflight systems is extremely complex; therefore, the training and certification of operations personnel is a critical piece of ensuring mission success. Mission Control Center (MCC-H), at the Lyndon B. Johnson Space Center in Houston, Texas, manages mission operations for the Space Shuttle Program, including the training and certification of the astronauts and flight control teams. An overview of a flight control team s makeup and responsibilities during a flight, and details on how those teams are trained and certified, reveals that while the training methodology for developing flight controllers has evolved significantly over the last thirty years the core goals and competencies have remained the same. In addition, the facilities and tools used in the control center have evolved. Changes in methodology and tools have been driven by many factors, including lessons learned, technology, shuttle accidents, shifts in risk posture, and generational differences. Flight controllers share their experiences in training and operating the space shuttle. The primary training method throughout the program has been mission simulations of the orbit, ascent, and entry phases, to truly train like you fly. A review of lessons learned from flight controller training suggests how they could be applied to future human spaceflight endeavors, including missions to the moon or to Mars. The lessons learned from operating the space shuttle for over thirty years will help the space industry build the next human transport space vehicle.

Dittermore, Gary; Bertels, Christie

2011-01-01

425

29 CFR 1910.212 - General requirements for all machines.  

Code of Federal Regulations, 2011 CFR

...the machines which usually require point of operation guarding: (a ) Guillotine cutters. (b ) Shears. (c ) Alligator shears. (d ) Power presses. (e ) Milling machines. (f ) Power saws. (g ) Jointers. (h )...

2011-07-01

426

41 CFR 50-204.5 - Machine guarding.  

Code of Federal Regulations, 2012 CFR

...following are some of the machines which usually require point of operation guarding: Guillotine cutters. Shears. Alligator shears. Power presses. Milling machines. Power saws. Jointers. Portable power tools. Forming rolls and...

2012-07-01

427

41 CFR 50-204.5 - Machine guarding.  

Code of Federal Regulations, 2013 CFR

...following are some of the machines which usually require point of operation guarding: Guillotine cutters. Shears. Alligator shears. Power presses. Milling machines. Power saws. Jointers. Portable power tools. Forming rolls and...

2013-07-01

428

29 CFR 1910.212 - General requirements for all machines.  

Code of Federal Regulations, 2010 CFR

...the machines which usually require point of operation guarding: (a ) Guillotine cutters. (b ) Shears. (c ) Alligator shears. (d ) Power presses. (e ) Milling machines. (f ) Power saws. (g ) Jointers. (h )...

2010-07-01

429

29 CFR 1910.212 - General requirements for all machines.  

Code of Federal Regulations, 2014 CFR

...the machines which usually require point of operation guarding: (a ) Guillotine cutters. (b ) Shears. (c ) Alligator shears. (d ) Power presses. (e ) Milling machines. (f ) Power saws. (g ) Jointers. (h )...

2014-07-01

430

41 CFR 50-204.5 - Machine guarding.  

Code of Federal Regulations, 2014 CFR

...following are some of the machines which usually require point of operation guarding: Guillotine cutters. Shears. Alligator shears. Power presses. Milling machines. Power saws. Jointers. Portable power tools. Forming rolls and...

2014-07-01

431

41 CFR 50-204.5 - Machine guarding.  

Code of Federal Regulations, 2011 CFR

...following are some of the machines which usually require point of operation guarding: Guillotine cutters. Shears. Alligator shears. Power presses. Milling machines. Power saws. Jointers. Portable power tools. Forming rolls and...

2011-07-01

432

29 CFR 1910.212 - General requirements for all machines.  

Code of Federal Regulations, 2012 CFR

...the machines which usually require point of operation guarding: (a ) Guillotine cutters. (b ) Shears. (c ) Alligator shears. (d ) Power presses. (e ) Milling machines. (f ) Power saws. (g ) Jointers. (h )...

2012-07-01

433

41 CFR 50-204.5 - Machine guarding.  

Code of Federal Regulations, 2010 CFR

...following are some of the machines which usually require point of operation guarding: Guillotine cutters. Shears. Alligator shears. Power presses. Milling machines. Power saws. Jointers. Portable power tools. Forming rolls and...

2010-07-01

434

29 CFR 1910.212 - General requirements for all machines.  

Code of Federal Regulations, 2013 CFR

...the machines which usually require point of operation guarding: (a ) Guillotine cutters. (b ) Shears. (c ) Alligator shears. (d ) Power presses. (e ) Milling machines. (f ) Power saws. (g ) Jointers. (h )...

2013-07-01

435

Technical and Cost Assessment of the PCAST Machine  

E-print Network

Technical and Cost Assessment of the PCAST Machine Final Report PCAST ITER Volume II Chapter 4 an ignition-moderate-burn device smaller and less costly than ITER, the costing for this machine is presented ITER merely used fixed numbers or the data was considered more representative of the PCAST machine

436

heplat/9311002 Full QCD on APE100 Machines.  

E-print Network

hep­lat/9311002 Full QCD on APE100 Machines. Stefano ANTONELLI, Marco BELLACCI, Andrea DONINI) on APE100 machines. Initially we have tested the algorithm without fermions to pro­ duce SU(3) pure gauge of a new random number generator for APE100 machines. Finally we propose different scenarios

Roma "La Sapienza", Università di

437

Instruction sets for Parallel Random Access Machines  

SciTech Connect

The computational powers of time-bounded Parallel Random Access Machines (PRAMs) with different instruction sets are compared. A basic PRAM can perform the following operations in unit-time: addition, subtraction, Boolean operations, comparisons, and indirect addressing. Multiple processors may concurrently read and concurrently write a single cell. This thesis establishes that the class of languages accepted in polynomial time on a PRAM(*, {up arrow}, {down arrow}) contains the class of languages accepted in exponential time on a nondeterministic Turing machine (NEXPTIME) and is contained in the class of languages accepted in exponential space on a Turing machine. Efficient simulations are presented of PRAMs with enhanced instruction sets by sequential RAMs with the same instruction sets; also simulations of probabilistic PRAMs by deterministic PRAMs, using parallelism to replace randomness. Also given are simulations of PRAM(op)s by PRAMs, where both the simulated machine and the simulating machine are exclusive-read, exclusive-write machines.

Trahan, J.L.

1988-01-01

438

Machine Design  

NSDL National Science Digital Library

This website, the homepage of Machine Design.com, contains resources on a variety of information for engineers and technicians related to devices, components, design applications, products, and systems in the manufacturing technology sector. The site also features a CAD library, eBooks, audiovisual aids, webinars, whitepapers and a reference center. Some of the resources require a free login. The page offers an RSS feed to keep users up to date on new resources. A free login may be required to access some of these items.

439

New Pump and Treat Facility Remedial Action Work Plan for Test Area North (TAN) Final Groundwater Remediation, Operable Unit 1-07B  

SciTech Connect

This remedial action work plan identifies the approach and requirements for implementing the medical zone remedial action for Test Area North, Operable Unit 1-07B, at the Idaho National Engineering and Environmental Laboratory (INEEL). This plan details management approach for the construction and operation of the New Pump and Treat Facility. As identified in the remedial design/remedial action scope of work, a separate remedial design/remedial action work plan will be prepared for each remedial component of the Operable Unit 1-07B remedial action. This work plan was originally prepared as an early implementation of the final Phase C remediation. At that time, The Phase C implementation strategy was to use this document as the overall Phase C Work Plan and was to be revised to include the remedial actions for the other remedial zones (hotspot and distal zones). After the completion of Record of Decision Amendment: Technical Support Facility Injection Well (TSF-05) and Surrounding Groundwater Contamination (TSF-23) and Miscellaneous No Action Sites, Final Remedial Action, it was determined that each remedial zone would have it own stand-alone remedial action work plan. Revision 1 of this document converts this document to a stand-alone remedial action plan specific to the implementation of the New Pump and Treat Facility used for plume remediation within the medical zone of the OU 1-07B contaminated plume.

D. Vandel

2003-09-01

440

A Study of Operator and Mechanic Training Needs in the Transit Industry. Volume I, Findings and Conclusions. Final Report.  

ERIC Educational Resources Information Center

Surveys of 188 transit properties and on-site visits were conducted to determine training needs of operators and mechanics in the urban mass transportation industry. Volume I presents findings and conclusions of the study with reference to survey methodology, site visit interviews and observations, questionnaire results, and specific

Henderson, Harold L.; And Others

441

A Prototype System for a Computer-Based Statewide Film Library Network: A Model for Operation. Final Report.  

ERIC Educational Resources Information Center

The project set out to establish an operational film scheduling network to improve service to New York State teachers using 16mm educational films. The Network is designed to serve local libraries located in Boards of Cooperative Educational Services (BOCES), regional libraries, and a statewide Syracuse University Film Rental Library (SUFRL). The

Bidwell, Charles M.; Auricchio, Dominick

442

Instructor/Operator Station Design Handbook for Aircrew Training Devices. Final Technical Report for Period March 1982-December 1986.  

ERIC Educational Resources Information Center

Human engineering guidelines for the design of instructor/operator stations (IOSs) for aircrew training devices are provided in this handbook. These guidelines specify the preferred configuration of IOS equipment across the range of the anticipated user sizes and performance capabilities. The guidelines are consolidated from various human

Warner, H. D.

443

Final Environmental Assessment for the construction and operation of an office building at the Stanford Linear Accelerator Center. Part 2  

SciTech Connect

The Department of Energy (DOE) has prepared an Environmental Assessment (EA), DOE/EA-1107, analyzing the environmental effects relating to the construction and operation of an office building at the Stanford Linear Accelerator Center (SLAC). SLAC is a national facility operated by Stanford University, California, under contract with DOE. The center is dedicated to research in elementary particle physics and in those fields that make use of its synchrotron facilities. The objective for the construction and operation of an office building is to provide adequate office space for existing SLAC Waste Management (WM) personnel, so as to centralize WM personnel and to make WM operations more efficient and effective. Based on the analyses in the EA, the DOE has determined that the proposed action does not constitute a major Federal action significantly affecting the quality of the human environment within the meaning of the National Environmental Policy Act of 1969 (NEPA). Therefore, the preparation of an Environmental Impact Statement is not required. This report contains the Environmental Assessment, as well as the Finding of No Significant Impact (FONSI).

NONE

1995-08-01

444

Final Report for LDRD Project 05-ERD-050: "Developing a Reactive Chemistry Capability for the NARAC Operational Model (LODI)"  

SciTech Connect

In support of the National Security efforts of LLNL, this project addressed the existing imbalance between dispersion and chemical capabilities of LODI (Lagrangian Operational Dispersion Integrator--the NARAC operational dispersion model). We have demonstrated potentially large effects of atmospheric chemistry on the impact of chemical releases (e.g., industrial chemicals and nerve agents). Prior to our work, LODI could only handle chains of first-order losses (exponential decays) that were independent of time and space, limiting NARAC's capability to respond when reactive chemistry is important. We significantly upgraded the chemistry and aerosol capability of LODI to handle (1) arbitrary networks of chemical reactions, (2) mixing and reactions with ambient species, (3) evaporation and condensation of aerosols, and (4) heat liberated from chemical reactions and aerosol condensation (which can cause a cold and dense plume hugging the ground to rise into the atmosphere, then descend to the ground again as droplets). When this is made operational, it will significantly improve NARAC's ability to respond to terrorist attacks and industrial accidents that involve reactive chemistry, including many chemical agents and toxic industrial chemicals (TICS). As a dual-use, the resulting model also has the potential to be a state-of-the-art air-quality model. Chemical releases are the most common type of airborne hazardous release and many operational applications involve such scenarios. The new capability we developed is therefore relevant to the needs of the Department of Energy (DOE), Department of Homeland Security (DHS) and Department of Defense (DoD).

Cameron-Smith, P; Grant, K; Connell, P

2008-02-11

445

OPERATIONS OF A DOCUMENT RETRIEVAL SYSTEM USING A CONTROLLED VOCABULARY. FINAL SUMMARY REPORT, DECEMBER 1, 1964-NOVEMBER 30, 1965.  

ERIC Educational Resources Information Center

THE REPORT DESCRIBES THE EFFECTS THAT A CONTROLLED VOCABULARY HAS ON THE INDEXING AND SEARCHING OPERATIONS OF THE DOCUMENT RETRIEVAL SYSTEM ESTABLISHED BY THE UNIVERSITY OF DAYTON FOR THE AIR FORCE MATERIALS LABORATORY. THE SYSTEM CONTAINS ABOUT 30,000 SCIENTIFIC AND TECHNICAL REPORTS COVERING ALL ASPECTS OF MATERIALS RESEARCH AND IS CONTROLLED BY

JANNING, EDWARD A.

446

On the Power of Multiplication in Random Access Machines  

Microsoft Academic Search

We consider random access machines with a multiplication operation, having the added capability of computing logical operations on register are considered both as an integer and as a vector of bits and both arithmetic and boolean operations may be used on the same register. We prove that, counting one operation as a unit of time and considering the machines as

Juris Hartmanis; Janos Simontt

1974-01-01

447

Diamond turning machine controller implementation  

SciTech Connect

The standard controller for a Pnuemo ASG 2500 Diamond Turning Machine, an Allen Bradley 8200, has been replaced with a custom high-performance design. This controller consists of four major components. Axis position feedback information is provided by a Zygo Axiom 2/20 laser interferometer with 0.1 micro-inch resolution. Hardware interface logic couples the computers digital and analog I/O channels to the diamond turning machine`s analog motor controllers, the laser interferometer, and other machine status and control information. It also provides front panel switches for operator override of the computer controller and implement the emergency stop sequence. The remaining two components, the control computer hardware and software, are discussed in detail below.

Garrard, K.P.; Taylor, L.W.; Knight, B.F.; Fornaro, R.J.

1988-12-01

448

Final Environmental Impact Statement and Environmental Impact Report for continued operation of Lawrence Livermore National Laboratory and Sandia National Laboratories, Livermore. Volume 3, Appendices F--M  

SciTech Connect

This Environmental Impact Statement/Environmental Impact Report (EIS/EIR) is prepared pursuant to the National Environmental Policy Act (NEPA) and the California Environmental Quality Act (CEQA). This document analyzes the potential environmental impacts of the proposed action: continued operation, including near-term (within 5 to 10 years) proposed projects, of Lawrence Livermore National Laboratory (LLNL) and Sandia National Laboratories, Livermore (SNL, Livermore). Additionally, this document analyzes a no action alternative involving continuing operations at FY 1992 funding levels without further growth, a modification of operations alternative to reduce adverse environmental impacts of operations or facilities, and a shutdown and decommissioning alternative of UC discontinuing its management of LLNL after the current contract expires on September 30, 1992. This document assesses the environmental impacts of the Laboratories` operations on air and water quality, geological and ecological systems, occupational and public health risks, prehistoric and historic resources, endangered species, floodplains and wetlands, socioeconomic resources, hazardous waste management, site contamination, and other environmental issues. The EIS/EIR is divided into five volumes and two companion reports. This volume contains the Final EIS/EIR technical appendices F through M. Appendix L has been revised to reflect public information activities since publication of the Draft EIS/EIR. These appendices provide technical support for the analyses in Volume 1 and also provide additional information and references.

Not Available

1992-08-01

449

Speed-Selector Guard For Machine Tool  

NASA Technical Reports Server (NTRS)

Simple guardplate prevents accidental reversal of direction of rotation or sudden change of speed of lathe, milling machine, or other machine tool. Custom-made for specific machine and control settings. Allows control lever to be placed at only one setting. Operator uses handle to slide guard to engage or disengage control lever. Protects personnel from injury and equipment from damage occurring if speed- or direction-control lever inadvertently placed in wrong position.

Shakhshir, Roda J.; Valentine, Richard L.

1992-01-01

450

Analysis of radiation exposure for troop observers, Exercise Desert Rock VI, Operation Teapot. Final report 1 Mar-15 Jul 80  

SciTech Connect

The radiation doses to troop observers and volunteer observers for Exercise Desert Rock VI are reconstructed for each applicable shot of Operation Teapot (1955). Initial neutron and gamma radiation doses are determined from transport codes ATR4 and ATR4.1. Residual radiation contours and decay rates are established through a new automated procedure that utilizes raw data in regression analysis to fit space-time models. Troop operations data are combined with the radiological data to determine integrated dose. Uncertainties are calculated for each parameter. The volunteers received the highest observer--1.6 rem gamma and 4.5 rem neutron. The highest dose received by troop observers was 1.4 rem gamma and 1.4 rem neutron at Shot Tesla.

Goetz, J.; McGahan, J.; Kaul, D.; Weitz, R.; Klemm, J.

1980-07-15

451

Trends and developments in industrial machine vision: 2013  

NASA Astrophysics Data System (ADS)

When following current advancements and implementations in the field of machine vision there seems to be no borders for future developments: Calculating power constantly increases, and new ideas are spreading and previously challenging approaches are introduced in to mass market. Within the past decades these advances have had dramatic impacts on our lives. Consumer electronics, e.g. computers or telephones, which once occupied large volumes, now fit in the palm of a hand. To note just a few examples e.g. face recognition was adopted by the consumer market, 3D capturing became cheap, due to the huge community SW-coding got easier using sophisticated development platforms. However, still there is a remaining gap between consumer and industrial applications. While the first ones have to be entertaining, the second have to be reliable. Recent studies (e.g. VDMA [1], Germany) show a moderately increasing market for machine vision in industry. Asking industry regarding their needs the main challenges for industrial machine vision are simple usage and reliability for the process, quick support, full automation, self/easy adjustment at changing process parameters, "forget it in the line". Furthermore a big challenge is to support quality control: Nowadays the operator has to accurately define the tested features for checking the probes. There is an upcoming development also to let automated machine vision applications find out essential parameters in a more abstract level (top down). In this work we focus on three current and future topics for industrial machine vision: Metrology supporting automation, quality control (inline/atline/offline) as well as visualization and analysis of datasets with steadily growing sizes. Finally the general trend of the pixel orientated towards object orientated evaluation is addressed. We do not directly address the field of robotics taking advances from machine vision. This is actually a fast changing area which is worth an own contribution.

Niel, Kurt; Heinzl, Christoph

2014-03-01

452

Design, Fabrication, and Operation of Innovative Microalgae Culture Experiments for the Purpose of Producing Fuels: Final Report, Phase I  

SciTech Connect

A conceptual design was developed for a 1000-acre (water surface) algae culture facility for the production of fuels. The system is modeled after the shallow raceway system with mixing foils that is now being operated at the University of Hawaii. A computer economic model was created to calculate the discounted breakeven price of algae or fuels produced by the culture facility. A sensitivity analysis was done to estimate the impact of changes in important biological, engineering, and financial parameters on product price.

Not Available

1985-01-01

453

R&D on an Ultra-Thin Composite Membrane for High-Temperature Operation in PEMFC. Final Report  

SciTech Connect

FuelCell Energy developed a novel high-temperature proton exchange membrane for PEM fuel cells for building applications. The laboratory PEM fuel cell successfully operated at 100-400{supdegree}C and low relative humidity to improve CO tolerance, mitigate water and thermal management challenges, and reduce membrane cost. The developed high-temperature membrane has successfully completed 500h 120C endurance testing.

Yuh, C.-Y.

2003-10-06

454

Effects of operating Mt. Elbert pumped-storage powerplant on Twin Lakes, Colorado: 1982 report of findings. Final report  

SciTech Connect

A series of studies is being performed to identify and quantify changes that occur in the aquatic ecology of Twin Lakes, Colorado, because of the Mt. Elbert Pumped-Storage Powerplant, which began operation in September 1981. The report presents results of studies done is 1982. These results, along with those from studies presently being done, will be compared with results from preoperational limnology studies at Twin Lakes from 1971 through 1981.

LaBounty, J.F.; Sartoris, J.J.; Lieberman, D.M.

1984-09-01

455

An industrial sewing machine variable speed controller  

Microsoft Academic Search

The apparel industry is attempting to move in a new direction in the coming decade. Since the invention of an electrically powered sewing machine, the operator has been seated. Today, companies are switching from a sit down operation to a stand up operation involving modular stations. The old treadle worked well with the sitting operator, but problems have been found

Christa Estes; Charles Spiggle; Shannon Swift; Stephen Vangeffen; Frank Youngner

1992-01-01

456

Course info Machine Learning  

E-print Network

Course info Machine Learning Real life problems Lecture 1: Machine Learning Problem Qinfeng (Javen) Shi 28 July 2014 Intro. to Stats. Machine Learning COMP SCI 4401/7401 Qinfeng (Javen) Shi Lecture 1: Machine Learning Problem #12;Course info Machine Learning Real life problems Table of Contents I 1 Course

Shi, Qinfeng "Javen"

457

Testing fluidized bed incinerators for energy-efficient operation for the Southtowns Sewage Treatment Agency. Final report  

SciTech Connect

Two methods for improving the energy efficiency of fluidized bed sludge incinerators were evaluated. The first method used paper pulp and polymer as conditioning agents for municipal sludge instead of lime and ferric chloride. Automatic control of the incinerator was the second method evaluated for energy savings. To evaluate the use of paper pulp and polymer as conditioning agents, varying quantities of paper pulp were added to the liquid sludge to determine the optimal sludge-to-paper pulp ratio. The effect of the paper pulp and polymer-conditioned sludge on plant operations also was evaluated. When compared to sludge conditioned with lime and ferric chloride, the paper pulp and polymer-conditioned sludge had similar cake release and feed characteristics, higher BTU values for the dry sludge solids, required less auxiliary fuel for incineration, and generated less ash for disposal. The paper pulp and polymer did not have any appreciable negative effects on the operation of the wastewater treatment plant. It was estimated that processing and incinerating the sludge conditioned with paper pulp and polymer resulted in a cost savings of up to $91.73 per dry ton of activated sludge solids. To evaluate the effect of automatic control, all the incinerator operating parameters including air flow rates, fuel oil feed rates, and sludge feed rates, were automatically monitored and controlled to minimize auxiliary fuel oil use and to keep the incinerator running at optimal conditions. Although effective, the estimated cost savings for automatic control of the incinerator were small.

NONE

1996-01-01

458

Material Removal Rate, Kerf, and Surface Roughness of Tungsten Carbide Machined with Wire Electrical Discharge Machining  

NASA Astrophysics Data System (ADS)

In this article, the effects of varying seven different machining parameters in addition to varying the material thickness on the machining responses such as material removal rate, kerf, and surface roughness of tungsten carbide samples machined by wire electrical discharge machining (WEDM) were investigated. The design of experiments was based on a Taguchi orthogonal design with 8 control factors with three levels each, requiring a set of 27 experiments that were repeated three times. ANOVA was carried out after obtaining the responses to determine the significant factors. The work piece thickness was expected to have a major effect on the material removal rate but showed to be significant in the case of surface roughness only. Finally, optimization of the machining responses was carried out and models for the material removal rate, kerf, and surface roughness were created. The models were validated through confirmation experiments that showed significant improvements in machining performance for all investigated machining outcomes.

Shah, Aqueel; Mufti, Nadeem A.; Rakwal, Dinesh; Bamberg, Eberhard

2011-02-01

459

Study of the effect of machining parameters on the machining characteristics in electrical discharge machining of tungsten carbide  

Microsoft Academic Search

Electrical discharge machining (EDM) is a process for shaping hard metals and forming deep and complex-shaped holes by arc erosion in all kinds of electro-conductive materials. The objective of this research is to study the influence of operating parameters of EDM of tungsten carbide on the machining characteristics. The effectiveness of the EDM process with tungsten carbide is evaluated in

S. H. Lee; X. P. Li

2001-01-01

460

Supporting evaluation for the proposed plan for final remedial action for the groundwater operable unit at the chemical plant area of the Weldon Spring Site, Weldon Spring, Missouri.  

SciTech Connect

This report presents the technical information developed since the interim record of decision (IROD) was issued in September 2000 (U.S. Department of Energy [DOE] 2000). The information was incorporated into the evaluation that was performed in selecting the preferred alternative for the Chemical Plant groundwater operable unit (GWOU) of the Weldon Spring site. The contaminants of concern (COCs) in groundwater and springs are trichloroethylene (TCE), nitrate, uranium, and nitroaromatic compounds. The preferred alternative of monitored natural attenuation (MNA) coupled with institutional controls (ICs) and contingency activities is described in the ''Proposed Plan (PP) for Final Remedial Action for the Groundwater Operable Unit at the Chemical Plant Area of the Weldon Spring Site, Weldon Spring, Missouri'' (DOE 2003b).

NONE

2003-08-06

461

An industrial sewing machine variable speed controller  

NASA Astrophysics Data System (ADS)

The apparel industry is attempting to move in a new direction in the coming decade. Since the invention of an electrically powered sewing machine, the operator has been seated. Today, companies are switching from a sit down operation to a stand up operation involving modular stations. The old treadle worked well with the sitting operator, but problems have been found when trying to use the same treadle with a standing operator. This report details a new design for a treadle to operate an industrial sewing machine that has a standing operator. Emphasis is placed on the ease of use by the operator, as well as the ergonomics involved. Procedures for testing the design are included along with possible uses for the treadle in other applications besides an industrial sewing machine.

Estes, Christa; Spiggle, Charles; Swift, Shannon; Vangeffen, Stephen; Youngner, Frank

462

An industrial sewing machine variable speed controller  

NASA Technical Reports Server (NTRS)

The apparel industry is attempting to move in a new direction in the coming decade. Since the invention of an electrically powered sewing machine, the operator has been seated. Today, companies are switching from a sit down operation to a stand up operation involving modular stations. The old treadle worked well with the sitting operator, but problems have been found when trying to use the same treadle with a standing operator. This report details a new design for a treadle to operate an industrial sewing machine that has a standing operator. Emphasis is placed on the ease of use by the operator, as well as the ergonomics involved. Procedures for testing the design are included along with possible uses for the treadle in other applications besides an industrial sewing machine.

Estes, Christa; Spiggle, Charles; Swift, Shannon; Vangeffen, Stephen; Youngner, Frank

1992-01-01

463

Rosie - mobile robot worksystem for decommissioning and dismantling operations. Final report, April 1, 1996--January 31, 1997  

SciTech Connect

RedZone Robotics, Inc. has undertaken development of an advanced remote worksystem - Rosie - specifically designed to meet the challenges of performing a wide range of decontamination and dismantlement (D&D) operations in nuclear environments. The Rosie worksystem includes a locomotor, heavy manipulator, operator console, and control system for remote operations. The locomotor is a highly mobile platform with tether management and hydraulic power onboard. The heavy manipulator is a high-payload, long-reach boom used to deploy a wide variety of tools and/or sensors into the work area. Rosie`s advanced control system, broad work capabilities, and hardening/reliability for hazardous duty make it a new and unique capability that facilitates completion of significant cleanup projects throughout the Department of Energy (DOE) and private sector. Endurance testing of the first Rosie system from September 1995 to March 1996 has proven its capabilities and appropriateness for D&D applications. Design enhancements were incorporated into the second Rosie system to improve and add features necessary for deployment at a DOE facility decommissioning. This second Rosie unit was deployed to the Argonne National Laboratory`s CP-5 reactor facility in early December 1996, and it is currently being used in the decommissioning of the reactor there. This report will overview this second Rosie system and the design enhancements made to it based on the lessons learned during the design, fabrication, and testing of the first Rosie system. The Rosie system has been designed to be a versatile and adaptable tool that can be used in many different applications in D&D work at nuclear facilities. It can carry a wide variety of tooling, sensors, and other robotic equipment at the tip of its heavy manipulator, and it can deploy those items to many different hazardous work areas. Rosie`s capabilities and system design address the need for durability and reliability in these environments.

NONE

1998-12-31

464

Model Development to Establish Integrated Operational Rule Curves for Hungry Horse and Libby Reservoirs - Montana, 1996 Final Report.  

SciTech Connect

Hungry Horse and Libby dams have profoundly affected the aquatic ecosystems in two major tributaries of the Columbia River by altering habitat and water quality, and by imposing barriers to fish migration. In 1980, the U.S. Congress passed the Pacific Northwest Electric Power Planning and Conservation Act, designed in part to balance hydropower development with other natural resources in the Columbia System. The Act formed the Northwest Power Planning Council (Council) who developed a program to protect, mitigate and enhance fish and wildlife on the Columbia River and its tributaries. Pursuant to the Council`s Fish and Wildlife Program for the Columbia River System (1987), we constructed computer models to simulate the trophic dynamics of the reservoir biota as related to dam operation. Results were used to develop strategies to minimize impacts and enhance the reservoir and riverine fisheries, following program measures 903(a)(1-4) and 903(b)(1-5). Two FORTRAN simulation models were developed for Hungry Horse and Libby reservoirs located in northwestern Montana. The models were designed to generate accurate, short-term predictions specific to two reservoirs and are not directly applicable to other waters. The modeling strategy, however, is portable to other reservoir systems where sufficient data are available. Reservoir operation guidelines were developed to balance fisheries concerns in the headwaters with anadromous species recovery actions in the lower Columbia (Biological Rule Curves). These BRCs were then integrated with power production and flood control to reduce the economic impact of basin-wide fisheries recovery actions. These Integrated Rule Curves (IRCs) were developed simultaneously in the Columbia Basin System Operation Review (SOR), the Council`s phase IV amendment process and recovery actions associated with endangered Columbia Basin fish species.

Marotz, Brian; Althen, Craig; Gustafson, Daniel

1996-01-01

465

Geological, geochemical, and operational summary, aurora well, OCS Y-0943-1, Beaufort Sea, Alaska. Final report  

SciTech Connect

The Aurora well is located just off the coast of the Arctic National Wildlife Refuge (ANWR). The well was spudded November 2, 1987, in 68 ft of water and plugged and abandoned 286 days later on August 30, 1988, after drilling to a total depth (TD) of 18,325 ft below the Kelly Bushing (RKB). The report presents our interpretations of the geologic and geochemical information collected from the Aurora well. Additionally, a significant section of the report is devoted to the operational aspects of drilling the Aurora well.

Paul, L.E.; Choromanski, D.R.; Turner, R.F.; Flett, T.O.; Paul, L.E.

1994-01-01

466

National emission standards for hazardous air pollutants for ethylene oxide commercial sterilization and fumigation operations--EPA. Interim final rule.  

PubMed

Today's action suspends the National Emission Standards for Hazardous Air Pollutants for Ethylene Oxide Commercial Sterilization and Fumigation Operations (EO NESHAP) requirements for chamber exhaust and aeration room vents. The suspension allows affected sources subject to the EO NESHAP to defer compliance with the NESHAP requirements for chamber exhaust and aeration room vents for one year until December 6, 1999. This suspension does not affect the requirement for sources subject to the EO NESHAP to comply with provisions for sterilizer vents by December 6, 1998. This action does not change the level of the standards or the intent of the NESHAP promulgated in 1994. PMID:10338881

1998-12-01

467

Mind & Machine  

NSDL National Science Digital Library

Mind & Machine is a weekly column provided by Ashley Dunn for the New York Times Cybertimes that discusses topics related to computing, technology, and the Internet. Recent columns have addressed the topics of the development of Internet telephony, possible futures of user interfaces, the history of technology and standards, and the Internet as a vehicle for community. Articles are well written, opinionated, and thought provoking. Mr. Dunn is a free lance writer who has written for such papers as the New York Times, the Los Angeles Times, the Seattle Post-Intelligencer, and the South China Morning Post. Note that the site is available only upon registration and is free of charge only in the US.

Dunn, Ashley.

468

Moving Along With Simple Machines A Lesson in Simple Machines  

NSDL National Science Digital Library

The purpose of this activity is to allow students to study simple machines, how they operate and how they differ from each other. This activity/lesson was developed by a K-12 science teacher in the American Physiological Society?s 2010 Frontiers in Physiology Program. For more information on this program, please visit www.frontiersinphys.org.

Ms. Josefina Goodwin (Raleigh Egypt High School)

2011-04-01

469

Activating the private clean innovation machine  

Microsoft Academic Search

In view of the sizeable climate change challenge, we need a clean innovation machine operating at full speed. The private clean innovation machine, left on its own, is not up for this challenge. It needs government intervention to address the combination of environmental and knowledge externalities and overcome path dependencies. The firm level evidence presented in this contribution on the

Reinhilde Veugelers

2011-01-01

470

Composite Concrete Bed for CNC Machine Tool  

Microsoft Academic Search

As the operation speeds of CNC machine tools are increased, the vibration problem has become a major constraint of manufacturing of precision products. The two important functional requirements of CNC machine tool bed are high structural stiffness and high damping. Conventional metallic materials used for bed structure have high stiffness but low damping. Epoxy concrete materials used for bed structure

Ding Jiangmin

2010-01-01

471

The Serger (Overlock) Machine. Module 10.  

ERIC Educational Resources Information Center

This module on the purpose and use of the serger machine, one in a series on clothing construction for industrial sewing machine operators designed for student self-study, contains nine sections. Each section includes the following parts: an introduction, directions, an objective, learning activities, student information, student self-check,

South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

472

GAMMA - A High Performance Dataflow Database Machine  

Microsoft Academic Search

In this paper, we present the design, implementation techniques, and initial performance evaluation ofGamma. Gamma is a new relational database machine that exploits dataflow query processing techniques. Gammais a fully operational prototype consisting of 20 VAX 11\\/750 computers. The design of Gamma is based on whatwe learned from building our earlier multiprocessor database machine prototype (DIRECT) and several years ofsubsequent

David J. Dewitt; Robert H. Gerber; Goetz Graefe; Michael L. Heytens; Krishna B. Kumar; M. Muralikrishna

1986-01-01

473

Dry Machining and Minimum Quantity Lubrication  

Microsoft Academic Search

Modern machining processes face continuous cost pressures and high quality expectations. To remain competitive a company must continually identify cost reduction opportunities in production, exploit economic opportunities, and continuously improve production processes. A key technology that represents cost saving opportunities related to cooling lubrication, and simultaneously improves the overall performance of cutting operations, is dry machining. The elimination of, or

K. Weinert; I. Inasaki; J. W. Sutherland; T. Wakabayashi

2004-01-01

474

Machine Shop. Performance Objectives. Basic Course.  

ERIC Educational Resources Information Center

Several intermediate performance objectives and corresponding criterion measures are listed for each of 13 terminal objectives for a high school basic machine shop course. The materials were developed for a 36-week course (2 hours daily) designed to enable students to become familiar with the operation of machine shop equipment, to become familiar

Hilton, Arthur; Lambert, George

475

Initial operation of the Tevatron collider  

SciTech Connect

The Tevatron is now the highest energy proton synchrotron and the only accelerator made with superconducting magnets. Operating since 1983 as a fixed-target machine at energies up to 800 GeV, it has now been modified to operate as a 900 GeV antiproton-proton collider. This paper describes the initial operation of the machine in this mode. The new features of the Fermilab complex, including the antiproton source and the Main Ring injector with its two overpasses and new rf requirements, are discussed. Beam characteristics in the Tevatron (including lifetimes, emittances, luminosity, beam-beam tune shifts, backgrounds, and low beta complications), the coordination of the steps in the accelerator chain, and the commissioning history are also discussed. Finally, some plans for the improvement of the collider are presented.

Johnson, R.

1987-03-01

476

Socially guided machine learning  

E-print Network

Social interaction will be key to enabling robots and machines in general to learn new tasks from ordinary people (not experts in robotics or machine learning). Everyday people who need to teach their machines new things ...

Thomaz, Andrea Lockerd

2006-01-01

477

(Design and operation of a portable ethanol plant). Final report. [Small-scale (5-10 gal/h)  

SciTech Connect

A portable distillation plant with a packed reflux column was designed and built that is capable of producing 10 to 15 gallons of 190 proof ethanol per hour. Several kinds of feedstocks were used to produce ethanol. Corn served as a good feedstock and was easily processed in the still. However, because of the present high prices of corn and the manual labor for operation it cannot be used to produce ethanol commercially as a fuel at prices competitive with petroleum fuels. Cellulosic feedstocks such as paper, sawdust and grasses and leaves were enzymatically degraded to sugars and fermented to ethanol. Because of the manual labor required and small capacity of the still total operation costs would preclude competitive fuel prices. However, such a plant could be used on a farm for production of a supplementary fuel or for independence from petroleum fuels. The trials with cellulosic materials did give evidence that such feedstocks are plausible sources for ethanol when produced on a large scale in an automated production plant. On a large scale basis ethanol could be produced competitively as an alternative fuel for gasoline.

Glenn, K.C.

1983-09-25

478

Experimental and theoretical investigation of operational and survivability issues in thermal radiators for thermionic space nuclear power systems. Final report  

SciTech Connect

Heat pipes are a promising candidate for spacecraft radiators. This report describes a program designed to investigate the mass migration phenomenon in heat pipes. The program involved experiments to observe and measure the mass migration rates in both high and low operating temperature heat pipes. The low-temperature experiments were intended to simulate the operation of high-temperature, liquid metal heat pipes. Octadecane was the selected low-temperature working fluid. It is a paraffin and exhibits some of the characteristics of liquid metal working fluids. Sodium was the working fluid used in the high temperature experiment. A one-dimensional compressible flow model was developed for describing the hydrodynamics of rarefied vapor flow in heat pipe condensers. This model was compared with experimental data for the low-temperature octadecane heat pipes and the high-temperature sodium heat pipe. The model was found to satisfactorily predict the temperature profiles and location of freeze-fronts for the low-temperature heat pipes. Mass migration rate predictions using the model were satisfactory for the low-temperature heat pipes as well. However, the mass migration prediction for the high-temperature, sodium heat pipe was not in agreement with experimental data. An analytical model which accounts for property variations in the radial as well as longitudinal directions is recommended. A one-dimensional model was unsatisfactory for predicting mass migration rates in liquid metal heat pipes.

Keddy, M.D.

1994-03-15

479

Development of electrolysis-cell separator for 125/sup 0/C operation. Advanced alkaline electrolysis cell development. Final report  

SciTech Connect

This report contains the findings of a seven-month contracted effort. The major technical task involved a 125/sup 0/C operating temperature test of the 20 v/o polybenzimidazole (PBI) - 80 v/o potassium titanate (K/sub 2/TiO/sub 3/) separator in combination with the nickel-molybdenum cathode electrocatalyst system dubbed the C-AN cathode using the ARIES test system which was developed previously. The test of the PBI-K/sub 2/TiO/sub 3/ separator was only partially successful. The anticipated 1.85 (75/sup 0/C) and 1.75 volt per cell (100/sup 0/C) input requirement at 550 ma/cm/sup 2/ were surpassed slightly. The test module operated stably for about 550 hr. Although there were some mechanical difficulties with the ARIES test unit, testing at 125/sup 0/C proceeded from 745 hr on test until the test was terminated at 2318 operating hours to allow diagnostic disassembly. The input voltage degraded to a value of 1.82 volt per cell at 125/sup 0/C which is unacceptable. Diagnostic disassembly showed the PBI portion of the separator was no longer present. PBI had been shown to be stable in 123/sup 0/C, 45 w/o KOH solutions in a 1000-hr test. The attack is suggested to be attributable to a peroxide or perchlorate type oxidizer which would be unique to the electrolysis mode and probably not present in alkaline fuel cell applications. Recommendations for further testing include an evaluation of the chemical compatibility of PBI with alkaline/oxidizer solutions and endurance testing the C-AN cathode with new improved anode structures at 125/sup 0/C using asbestos separators in combination with a silicate saturated KOH electrolyte. Demonstration of the stability of this 1.65 volt per cell (90% voltage efficiency) technology at 500 ma/cm/sup 2/ will document an inexpensive and intelligent hydrogen production process which will satisfy the needs of the United States in the 1990s.

Murray, J N

1983-03-01

480

Differential-absorption LIDAR technology for light twin-engine aircraft operation. Final report. [Monitoring of air pollution  

SciTech Connect

A survey of all relevant, gas phase, environmentally important pollutants was performed to identify every accessible spectroscopic feature for differential absorption LIDAR (light detection and ranging) probing. In addition, a comparison was made between all laser types for their ability to deliver sufficient energy at the appropriate wavelength to provide adequate signal to noise of the return for accurate range resolved concentration measurements. Special consideration was given to all of the features necessary for operation of such a system in a light twin-engine aircraft. This highly mobile system requires reliability, light-weight compact size, constant laser output for flight sampling period, and an unambiguous analysis method from the chosen detector system. Such a system will allow fast and accurate remote sensing of emissions or ambient levels for research or monitoring.

Karl, R.; Argo, H.

1982-11-01

481

Long-term effects of dredging operations program: Assessing bioaccumulation in aquatic organisms exposed to contaminated sediments. Final report  

SciTech Connect

This paper synthesizes previous work on bioaccumulation to provide a working document for the environmental impact on the aquatic environment due to bioaccumulation of sediment contaminants resulting from dredging operations and dredged material placement. Emphasis is placed on explanation of basic concepts concerning, and factors influencing, sediment contaminant bioaccumulation and bioavailability. The paper presents several numerical methods for assessing bioaccumulation, including a simple method for estimating theoretical bioaccumulation potential (TBP) from sediment chemistry for neutral organic chemicals. Methods are also given for projecting contaminant concentrations in organism tissues when steady state is achieved, based on laboratory or field exposures to contaminated sediments. These assessments are presented in the context of the US Environmental Protection Agency's tiered testing approach for dredged material evaluation. The various numerical methods for bioaccumulation assessment are illustrated and compared using step-by-step example calculations with hypothetical and actual data.

Clarke, J.U.; McFarland, V.A.

1991-07-01

482

United States Department of Energy`s electric and hybrid vehicle site operator program. Final report, April 1991--September 1996  

SciTech Connect

Drivers in San Juan County, which, is comprised of islands making for short distances on rural (low speed limits) roads, found that present day electric vehicle technology can work in certain applications. An honest, accurate appraisal of the expectations of the vehicle is essential. When needs and capabilities are able to match up, then successful ownership and operation can occur. Today`s EV technology can accomplish certain driving tasks. Careful, honest analysis what is expected of the car can lead to a rewarding EV driving experience. Providing recharge locations in the community proved essential of the peace of mind of the EV driver. Since heating and air conditioning represent electric loads whose reduces range, a moderate to warm year round climate is best for today`s EV. Also, even limited solar recharging has been determined to improve battery pack life.

NONE

1997-11-06

483

A Complexity Science-Based Framework for Global Joint Operations Analysis to Support Force Projection: LDRD Final Report.  

SciTech Connect

The military is undergoing a significant transformation as it modernizes for the information age and adapts to address an emerging asymmetric threat beyond traditional cold war era adversaries. Techniques such as traditional large-scale, joint services war gaming analysis are no longer adequate to support program evaluation activities and mission planning analysis at the enterprise level because the operating environment is evolving too quickly. New analytical capabilities are necessary to address modernization of the Department of Defense (DoD) enterprise. This presents significant opportunity to Sandia in supporting the nation at this transformational enterprise scale. Although Sandia has significant experience with engineering system of systems (SoS) and Complex Adaptive System of Systems (CASoS), significant fundamental research is required to develop modeling, simulation and analysis capabilities at the enterprise scale. This report documents an enterprise modeling framework which will enable senior level decision makers to better understand their enterprise and required future investments.

Lawton, Craig R.

2015-01-01

484

Compact lightweight power PEMFC operating from a unique hydrogen generating system. Final report, September 1993-March 1995  

SciTech Connect

The goal of this program was to investigate the feasibility, for the military, of a 120-watt, 20,000- watt-power source weighing near ten pounds. An air breathing proton exchange membrane fuel cell (PEMFC) utilizing hydrogen from Lithium Borohydride (LiBH4) could theoretically meet this specification. Giner, Inc. has established that a hydrogen generator, utilizing LiBH4, provides a hydrogen current flux of 150 Amps/sq ft with about 60% long-term utilization. Additionally, Giner, Inc. demonstrated a 120-watt fuel cell system, which operated at approximately 12 volts at 100 Amps/sq ft (10 amps through a 0.1 -sq ft active area). Integrating the two systems will require further effort and development work.

Theriault, R.

1995-11-01

485

Investigation of electric and magnetic fields and operator exposure produced by VDTS: NIOSH VDT epidemiology study. Final report  

SciTech Connect

The report addresses the subject of electric and magnetic field emissions of video display terminals (VDTs), both radiofrequency (RF) and extremely-low frequency (ELF), at AT T and Bellsouth telephone operator facilities. The study represents one component of a larger study of possible reproductive effects in VDT operators being conducted by the National Institute for Occupational Safety and Health (NIOSH). The purpose of the study was to assess the strength of the electric and magnetic fields produced by the different types of displays to which participants in the NIOSH study could have been exposed. Because of the study design used in the epidemiology investigation, the exposure evaluation included a study of the fields associated with VDTs and two other forms of displays which do not use cathode-ray-tube technology. A study of 96 displays, selected at random, and located in nine cities, was conducted during April 23 through May 6, 1990. The comprehensive survey included measurements of very-low-frequency (VLF) RF electric and magnetic field emissions associated with the horizontal deflection circuits of the VDTs, at a distance of 30 centimeters (cm) from all accessible surfaces of each VDT. In addition, measurements of the ELF electric and magnetic fields produced by the vertical deflection circuits associated with the vertical refresh of the screen display were measured at a distance of 30 cm. The deflection frequencies were also measured. Based on the findings of the study, it is concluded that typical personnel exposures to VDT, NGT or LED electric or magnetic field emissions in the telephone offices investigated are relatively low, within the range of other exposure data on VDTs reported by other researchers, and are substantially less than any electric and magnetic field exposure limits developed for radiation protection purposes by organizations within the United States and many other countries.

Not Available

1990-09-18

486

Commercialization of waste gob gas and methane produced in conjunction with coal mining operations. Final report, August 1992--December 1993  

SciTech Connect

The primary objectives of the project were to identify and evaluate existing processes for (1) using gas as a feedstock for production of marketable, value-added commodities, and (2) enriching contaminated gas to pipeline quality. The following gas conversion technologies were evaluated: (1) transformation to liquid fuels, (2) manufacture of methanol, (3) synthesis of mixed alcohols, and (4) conversion to ammonia and urea. All of these involved synthesis gas production prior to conversion to the desired end products. Most of the conversion technologies evaluated were found to be mature processes operating at a large scale. A drawback in all of the processes was the need to have a relatively pure feedstock, thereby requiring gas clean-up prior to conversion. Despite this requirement, the conversion technologies were preliminarily found to be marginally economic. However, the prohibitively high investment for a combined gas clean-up/conversion facility required that REI refocus the project to investigation of gas enrichment alternatives. Enrichment of a gas stream with only one contaminant is a relatively straightforward process (depending on the contaminant) using available technology. However, gob gas has a unique nature, being typically composed of from constituents. These components are: methane, nitrogen, oxygen, carbon dioxide and water vapor. Each of the four contaminants may be separated from the methane using existing technologies that have varying degrees of complexity and compatibility. However, the operating and cost effectiveness of the combined system is dependent on careful integration of the clean-up processes. REI is pursuing Phase 2 of this project for demonstration of a waste gas enrichment facility using the approach described above. This is expected to result in the validation of the commercial and technical viability of the facility, and the refinement of design parameters.

Not Available

1993-12-01

487

Simple Machines - Mechanical Advantage  

NSDL National Science Digital Library

This video uses working simple machines to demonstrate how to calculate mechanical advantage. Suitable for any school program involving simple machines. Demonstrates pulley systems including a chain block.

2007-01-01

488

Design and Experimental Validation for Direct-Drive Fault-Tolerant Permanent-Magnet Vernier Machines  

PubMed Central

A fault-tolerant permanent-magnet vernier (FT-PMV) machine is designed for direct-drive applications, incorporating the merits of high torque density and high reliability. Based on the so-called magnetic gearing effect, PMV machines have the ability of high torque density by introducing the flux-modulation poles (FMPs). This paper investigates the fault-tolerant characteristic of PMV machines and provides a design method, which is able to not only meet the fault-tolerant requirements but also keep the ability of high torque density. The operation principle of the proposed machine has been analyzed. The design process and optimization are presented specifically, such as the combination of slots and poles, the winding distribution, and the dimensions of PMs and teeth. By using the time-stepping finite element method (TS-FEM), the machine performances are evaluated. Finally, the FT-PMV machine is manufactured, and the experimental results are presented to validate the theoretical analysis. PMID:25045729

Liu, Guohai; Yang, Junqin; Chen, Ming; Chen, Qian

2014-01-01

489

Silicon-Web-Growing Machine  

NASA Technical Reports Server (NTRS)

Silicon replenished automatically as web is withdrawn. Semiautomatic silicon-web-growing machine set down in detailed engineering drawings. Melt level sensed with He/Ne laser beam and melt-level error signal used to control motor-driven pellet feeder, speeding up when level is low. System reduces demand upon operator's time.

Duncan, C.

1985-01-01

490

Optical-Fiber-Welding Machine  

NASA Technical Reports Server (NTRS)

Technique yields joints with average transmissivity of 91.6 percent. Electric arc passed over butted fiber ends to melt them together. Maximum optical transmissivity of joint achieved with optimum choice of discharge current, translation speed, and axial compression of fibers. Practical welding machine enables delicate and tedious joining operation performed routinely.

Goss, W. C.; Mann, W. A.; Goldstein, R.

1985-01-01

491

Semantic Analysis in Machine Translation.  

ERIC Educational Resources Information Center

In many cases machine-translation does not produce satisfactory results within the framework of purely formal (morphological and syntaxic) analysis, particularly, in the case of syntaxic and lexical homonomy. An algorithm for syntaxic-semantic analysis is proposed, and its principles of operation are described. The syntaxico-semantic structure is

Skorokhodko, E. F.

1970-01-01