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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  

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

3

Remotely Operated Subsea Machine Tool System.  

National Technical Information Service (NTIS)

Statoil and SINTEF, Norway, have jointly developed a concept for a remotely operated subsea machine tool system for deepwater precision machining and inspection. The system is designed for water depths to 400 meters. The machine tool system is operated th...

R. E. Husebye H. P. Jenssen D. Velund

1990-01-01

4

Machine Tool Operation, Course Description.  

ERIC Educational Resources Information Center

Prepared by an instructor and curriculum specialists, this course of study was designed to meet the individual needs of the dropout and/or hard-core unemployed youth by providing them skill training, related information, and supportive services knowledge in machine tool operation. The achievement level of each student is determined at entry, and…

Denny, Walter E.; Anderson, Floyd L.

5

Standardized Curriculum for Machine Tool Operation/Machine Shop.  

ERIC Educational Resources Information Center

|Standardized vocational education course titles and core contents for two courses in Mississippi are provided: machine tool operation/machine shop I and II. The first course contains the following units: (1) orientation; (2) shop safety; (3) shop math; (4) measuring tools and instruments; (5) hand and bench tools; (6) blueprint reading; (7)…

Mississippi State Dept. of Education, Jackson. Office of Vocational, Technical and Adult Education.

6

Standardized Curriculum for Machine Tool Operation/Machine Shop.  

ERIC Educational Resources Information Center

Standardized vocational education course titles and core contents for two courses in Mississippi are provided: machine tool operation/machine shop I and II. The first course contains the following units: (1) orientation; (2) shop safety; (3) shop math; (4) measuring tools and instruments; (5) hand and bench tools; (6) blueprint reading; (7)…

Mississippi State Dept. of Education, Jackson. Office of Vocational, Technical and Adult Education.

7

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

8

The noise of mobile machines used in surface coal mines: operator exposure, source diagnosis, potential noise control treatments. Open file report (final), June 1976December 1977  

Microsoft Academic Search

A summary of earlier work is presented indicating that about 25,000 machine operators employed in U.S. surface coal mines (or about 45 pct of all such operators), suffer greater noise exposures than are permitted by the Federal Coal Mine Health and Safety Act of 1969, with the predominant fraction of these overexposures ascribable to tracked dozers, wheeled front-end loaders, haulers,

E. E. Ungar; D. W. Andersen; M. N. Rubin

1978-01-01

9

Remotely Operated Subsea Machine Tool System.  

National Technical Information Service (NTIS)

STATOIL and SINTEF, Norway, have jointly developed a concept for a remotely operated subsea machine tool system for deepwater precision machining and inspection. The system is designed for water depths down to 400 meters. The system will be run on guideli...

R. E. Husebye H. P. Jenssen

1990-01-01

10

On the optimization of machining parameters for milling operations  

Microsoft Academic Search

Owing to the significant role that machining parameters play in performing successful and efficient machining operations, determination of the best or optimum machining parameters is still the subject of many studies. The need to use optimum machining parameters to improve machining efficiency is of greater importance when NC machines with high capital cost are employed. This paper describes development and

M Tolouei-Rad; I. M Bidhendi

1997-01-01

11

Machine Operator Training Program and Curriculum.  

ERIC Educational Resources Information Center

This curriculum contains materials for use in duplicating the 11-week course for machine operators that was implemented at New Hampshire Vocational-Technical College in Nashua, New Hampshire. Addressed in the course, which is designed to prepare entry-level employees, are the following topics: basic math, blueprint reading, layout tools and…

St. Cyr, David; And Others

12

A remotely controlled robot operates construction machines  

Microsoft Academic Search

A Tokyo-based construction company, Fujita Corporation, has developed the unmanned “Tele-Earthwork System”. It features a remotely controlled robot which manipulates conventional construction machines (such as backhoes and bulldozers) in the same way as a human operator. The robot can be easily disassembled into several sub assemblies (usually stored as disassembled parts in individual packages) for easy transportation. Following shipment to

Yoshihiro Kusuda

2003-01-01

13

Machine Operator Training Program and Curriculum.  

ERIC Educational Resources Information Center

|This curriculum contains materials for use in duplicating the 11-week course for machine operators that was implemented at New Hampshire Vocational-Technical College in Nashua, New Hampshire. Addressed in the course, which is designed to prepare entry-level employees, are the following topics: basic math, blueprint reading, layout tools and…

St. Cyr, David; And Others

14

Stability Analysis for Variable Frequency Operation of Synchronous Machines  

Microsoft Academic Search

A stability study of a synchronous machine is performed by applying the Nyquist stability-criterion to the equations which describe the behavior of the machine during small displacements about a steady-state operating point. This investigation reveals that, in some cases, machine instability can occur at low operating speeds. Regions of machine stability are established from the results of a digital computer

THOMAS A. LIPO; PAUL C. KRAUSE

1968-01-01

15

Synchronous operation control of the Brushless Doubly-Fed Machine  

Microsoft Academic Search

The paper presents a novel vector control structure for the Brushless Doubly-Fed Machine (BDFM) which is derived based on the machine synchronous operation. In fact, the synchronous operation of the BDFM provides an efficient approach for determining the required reference angle in the machine vector control structure. The utilization of such reference angle makes the vector control structure presented in

Farhad Barati; Shiyi Shao; Ehsan Abdi; Hashem Oraee; Richard McMahon

2010-01-01

16

On-machine dimensional verification. Final report  

SciTech Connect

General technology for automating in-process verification of machined products has been studied and implemented on a variety of machines and products at AlliedSignal Inc., Kansas City Division (KCD). Tests have been performed to establish system accuracy and probe reliability on two numerically controlled machining centers. Commercial software has been revised, and new cycles such as skew check and skew machining, have been developed to enhance and expand probing capabilities. Probe benefits have been demonstrated in the area of setup, cycle time, part quality, tooling cost, and product sampling.

Rendulic, W.

1993-08-01

17

Electrical spectrum analysis of operating Hydro Electric machines  

NASA Astrophysics Data System (ADS)

The electrical spectrum analysis of the operation of five pumped storage machines is discussed. It was found that machines without electrical problems produced little radio noise, although all machines produced some noise. Severe problems produced severe radio noise. If stator deterioration increases, the noise level increases. Similar machines produce similar electrical spectrum signatures. The general source of discharges can be located. A likelihood of failure can be calculated from spectrum analysis.

Timperley, J. E.

1981-12-01

18

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.

19

Mississippi Curriculum Framework for Machine Tool Operation/Machine Shop (Program CIP: 48.0503--Machine Shop Assistant). Secondary Programs.  

ERIC Educational Resources Information Center

|This document, which reflects Mississippi's statutory requirement that instructional programs be based on core curricula and performance-based assessment, contains outlines of the instructional units required in local instructional management plans and daily lesson plans for machine tool operation/machine shop I and II. Presented first are a…

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

20

Mississippi Curriculum Framework for Machine Tool Operation/Machine Shop (Program CIP: 48.0503--Machine Shop Assistant). Secondary Programs.  

ERIC Educational Resources Information Center

This document, which reflects Mississippi's statutory requirement that instructional programs be based on core curricula and performance-based assessment, contains outlines of the instructional units required in local instructional management plans and daily lesson plans for machine tool operation/machine shop I and II. Presented first are a…

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

21

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

22

Machine Shop Operations--2. Milling Machine, Heat Treatment of Metals, and Grinders.  

ERIC Educational Resources Information Center

|This manual was prepared for the student who plans to enter the machine shop field. The 20 selected jobs provide the student with knowledge and step-by-step procedures for the operation of milling machines. The text is organized so that each job has an objective, tools needed, step-by-step instructions, a progress quiz, and space for reference,…

Currao, Joseph; Usarzewicz, Louis

23

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.

Sankaranarayanasamy, Krishnasamy; Ganguli, Anindya Kumar

2012-01-01

24

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

25

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

26

76 FR 174 - International Business Machines (IBM), Global Sales Operations Organization, Sales and...  

Federal Register 2010, 2011, 2012, 2013

...TA-W-74,575D] International Business Machines (IBM), Global Sales Operations Organization...Charleston, WV; International Business Machines (IBM), Global Sales Operations Organization...to workers of International Business Machines (IBM), Global Sales Operations...

2011-01-03

27

Whole body vibration exposure of surface coal mining machine operators  

SciTech Connect

Field measurements utilizing a seat pad accelerometer were made on 61 surface coal mining machines in order to quantify the vibration levels experienced by the operators. Those data were combined with information on the statistics of the operating times of those machines in order to compare the operator's vibration exposure to the criteria in ISO 2631, ''A Guide for the Evaluation of Human Exposure to Whole Body Vibration.'' The comparison showed that about half of all surface coal mining machine operators can be expected to be exposed to vibration exceeding the fatigue decreased proficiency criterion, whereas only 7% to 22% would be expected to experience vibration exceeding the exposure limit. Detailed exposure statistics are presented and the implications of the results are discussed.

Remmington, P.J.; Andersen, D.W.; Bartholomae, R.; Redmond, G.

1984-02-01

28

Acoustic Emission Detection of Metals and Alloys During Machining Operations  

Microsoft Academic Search

Nelson, Jameson K. M.S., Purdue University, May 2012. Acoustic Emission Detection of Metals and Alloys During Machining Operations. Major Professor: Rodney G. Handy.\\u000aPractical correlation between material deformation attributes and theoretical concepts of machining has proven difficult to attain. The purpose of this study was to further explore trends and relationships using acoustic emission detection of materials undergoing single-point lathe

Jameson K Nelson

2012-01-01

29

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

30

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

31

Milling Machine Operator: Instructor's Guide for an Adult Course.  

ERIC Educational Resources Information Center

|The instructor's guide is for a course expected to help meet the need for trained operators in metalworking. Students successfully completing the course will be qualified for an entry-level job as a milling machine operator. The course is suitable for use in adult education programs of school districts, or in manpower development and training…

New York State Education Dept., Albany. Bureau of Secondary Curriculum Development.

32

Milling Machine Operator: Instructor's Guide for an Adult Course.  

ERIC Educational Resources Information Center

The instructor's guide is for a course expected to help meet the need for trained operators in metalworking. Students successfully completing the course will be qualified for an entry-level job as a milling machine operator. The course is suitable for use in adult education programs of school districts, or in manpower development and training…

New York State Education Dept., Albany. Bureau of Secondary Curriculum Development.

33

Multiple lead-electrical discharge machining. Final report  

SciTech Connect

Multiple lead-electrical discharge machining (ML-EDM) was investigated to develop the capability and demonstrate the feasibility of applying state-of-the-art electrical discharge machining (EDM) to the manufacturing of mechanical hardware. Two parts selected for the machining tests were a titanium component container and a stainless steel valve mounting plate. Numerous combinations of ML-EDM and conventional EDM tests were conducted on each part, and the results were evaluated for comparison. In all test cases, the cutting time savings of ML-EDM surpassed the conventional EDM by as much as 42%, and when compared to numerical control (NC) milling, a 75% reduction was achieved. A dimensional analysis revealed that the ML-EDM and conventional EDM were similar, but when compared to the NC milled parts, the ML-EDM parts were superior. When the surface finish comparisons were evaluated, the ML-EDM part surfaces were considerably better at higher material removal rates than those of the conventional EDM process. The investigation also revealed an important fact concerning the number of parts to be machined in a single setup. Because of the flushing restrictions of each part, an optimum number of parts to be machined per setup exist. The optimum number varies with each part, and increases above this number actually hinder the operation and become unproductive.

Brockhoff, R.W.

1985-08-01

34

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

35

100. ARAIII. Operations with drilling tool used in machining of ...  

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

100. ARA-III. Operations with drilling tool used in machining of ML-1 pressure vessel. Receptacle contains filings. July 12, 1963. Ineel photo no. 63-4456. Photographer: Benson. - Idaho National Engineering Laboratory, Army Reactors Experimental Area, Scoville, Butte County, ID

36

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

37

Man-machine interface for safe operation of mobile manipulators  

Microsoft Academic Search

The potential loss of static stability poses a major safety hazard for mobile manipulators, since stability cannot be readily sensed or learned by a human operator. This paper presents a hypothetical design of an ergonomic man-machine interface capable of effectively communicating abstract information about stability. It includes an online feedback of the margin of stability as an equivalent force into

MARTIN ZIMMERMANN

1991-01-01

38

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

39

Uncontrolled generator operation of interior PM synchronous machines following high-speed inverter shutdown  

Microsoft Academic Search

Interior permanent magnet (IPM) synchronous machine drives are vulnerable to a special fault mode when gating is suddenly removed from the inverter switches during high-speed operation. The resulting IPM machine operation as a generator in combination with an uncontrolled rectifier must be properly understood and accounted for in the machine design to avoid damage to either the machine or inverter.

Thomas M. Jahns

1998-01-01

40

Uncontrolled generator operation of interior PM synchronous machines following high-speed inverter shutdown  

Microsoft Academic Search

Interior permanent magnet (IPM) synchronous machine drives are vulnerable to a special fault mode when gating is suddenly removed from the inverter switches during high-speed operation. The resulting IPM machine operation as a generator in combination with an uncontrolled rectifier must be properly understood and accounted for in the machine design to avoid damage to either the machine or inverter.

Thomas M. Jahns; Vahe Caliskan

1999-01-01

41

Multifrequency Factory Operations. Final Report.  

National Technical Information Service (NTIS)

This study examined the potential for energy savings which exists when a factory is operated from multiple frequency electric power. In a previous study it was demonstrated that power hand tools operating from 360 to 400 Hz electric power achieve signific...

1980-01-01

42

Multifrequency Factor Operations. Final Report.  

National Technical Information Service (NTIS)

The potential for energy savings which exists when a factory is operated from multiple frequency electric power is examined. In a previous study it was demonstrated that power hand tools operating from 360 to 400 Hz electric power achieve significant ener...

1979-01-01

43

Optimized Operator Compartment. Final Report.  

National Technical Information Service (NTIS)

This project required the application of modern human engineering technology to effect a reduction of human error and a reduction of accidents associated with underground mining equipment. The specific problem was to develop optimized operator compartment...

F. D. McGuirk G. A. Podgornik

1975-01-01

44

Operational nuclear deterrence. Final report  

SciTech Connect

During the Cold War the superpower rivalry between the United States and the Soviet Union produced nuclear strategy based upon a now familiar concept, strategic nuclear deterrence. As we adjust to a remarkably different global security environment, one characteristic of which is the proliferation of weapons of mass destruction, a natural question arises: can deterrence play a part in nuclear strategies focused on regional foes possessing small nuclear arsenals. The paper examines the viability of 'operational' nuclear deterrence employed in the resolution of regional conflicts. The object of operational nuclear deterrence is to persuade an adversary not to use nuclear weapons. To be effective, a deterrent strategy must be credible; the enemy must perceive that we possess the means, will, and commitment to severely retaliate.... Nuclear deterrence, Regional conflict, Strategic deterrence, Operational deterrence.

Bedey, D.F.

1993-01-01

45

Optimized operator compartment. Final report  

Microsoft Academic Search

This project required the application of modern human engineering technology to effect a reduction of human error and a reduction of accidents associated with underground mining equipment. The specific problem was to develop optimized operator compartments that could be fitted to the following electric face equipment: Loaders, continuous miners, shuttle cars, roof bolters, face drills, cutters, and scoops. In all,

F. D. McGuirk; G. A. Podgornik

1975-01-01

46

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

Code of Federal Regulations, 2013 CFR

...Occupations involved in the operation of bakery machines (Order 11). 570.62 Section 570...Occupations involved in the operation of bakery machines (Order 11). (a) Finding and declaration...the operation of power-driven bakery machines are particularly hazardous for the...

2013-07-01

47

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

48

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

Code of Federal Regulations, 2013 CFR

...operation of power-driven meat-processing machines and occupations involving slaughtering...operation of power-driven meat-processing machines and occupations involving slaughtering...products and the operation of lard-roll machines. (3) All occupations...

2013-07-01

49

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

50

Multiple Lead-Electrical Discharge Machining. Final Report.  

National Technical Information Service (NTIS)

Multiple lead-electrical discharge machining (ML-EDM) was investigated to develop the capability and demonstrate the feasibility of applying state-of-the-art electrical discharge machining (EDM) to the manufacturing of mechanical hardware. Two parts selec...

R. W. Brockhoff

1985-01-01

51

Beam alignment machine technical manual description, operation, and maintenance procedures  

SciTech Connect

This manual contains the physical and functional descriptions, operation, and maintenance procedures for the Beam Alignment Machine (BAM). The purpose of the BAM is to provide a stable platform with manual and power-driven vertical and horizontal adjustments for precision alignment of x-ray, laser, camera, or optical equipment by one or more persons in a minimum amount of time. The system allows the focal point of all three heads to be positioned within a 1-in. circle at 20 ft. Information in this manual is for use by individuals responsible for the operation and maintenance of the equipment. Procedures in this manual are to be performed by personnel familiar with radiographic laser or optical equipment.

Gilbert, H.W.

1981-10-01

52

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

53

SUBMATIC - Remotely Operated Subsea Machine Tool and Inspection CNC-system.  

National Technical Information Service (NTIS)

The Norwegian oil company STATOIL and the Foundation for Scientific and Industrial Research at the University of Trondheim (SINTEF) have jointly developed a remotely operated subsea machine tool system for deepwater machining and inspection of subsea well...

O. Bjoerke R. E. Husebye H. P. Jenssen

1990-01-01

54

Multiple lead-electrical discharge machining. Final report  

Microsoft Academic Search

Multiple lead-electrical discharge machining (ML-EDM) was investigated to develop the capability and demonstrate the feasibility of applying state-of-the-art electrical discharge machining (EDM) to the manufacturing of mechanical hardware. Two parts selected for the machining tests were a titanium component container and a stainless steel valve mounting plate. Numerous combinations of ML-EDM and conventional EDM tests were conducted on each part,

Brockhoff

1985-01-01

55

Computer-aided operation planning and programming of machining on turning centers  

NASA Astrophysics Data System (ADS)

The machining centers which implement manufacturing operation concentration in the highest degree can be used for complete machining of cylindrical type components, while these machines ensure the protectional procedures with stationary cutting tools typical of lathes and the protectional procedures with rotating cutting tools peculiar to drilling and milling machines. The GTIPROG-EC system, which was developed by us and can be run on IBM PC-s, is useful for operation planning of machining and making programs for manufacturing on turning centers. Our paper deals with the new results of development and the accuring problems. We especially examined the simulational possibilities of the GTIPROG/EC system.

Berta, Miklos; Cser, Istvan

1999-11-01

56

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

57

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

58

The Kelastic variable wall mining machine. Interim final report  

SciTech Connect

This machine cuts coal along a longwall face extending up to 500 feet by a rotating auger with bits. The machine also transports the coal that is cut acting as screw conveyor. By virtue of an integral shroud comprising part of the conveyor the machine is also amenable to a separation of the zones where men work from air being contaminated by dust and methane gas by the cutting action. Beginning as single intake air courses, the air separates at the working section where one split provides fresh air to the Occupied Zone (OZ) for human needs and the other split purges and carries away dust and methane from face fragmentation in the Cutting Zone (CZ). The attractiveness of the Variable Wall Mining Machine is that it addresses the limitations of current longwall mining equipment: it can consistently out-produce continuous mining machines and most longwall shearing machines. It also is amenable to configuring an environment, the dual-duct system, where the air for human breathing is separated from dust-laden ventilating air with methane mixtures. The objective of the research was to perform a mathematical and experimental study of the interrelationships of the components of the system so that a computer model could demonstrate the workings of the system in an animation program. The analysis resulted in the compilation of the parameters for three different configurations of a dual aircourse system of ventilating underground mines. In addressing the goal of an inherently safe mining system the dual-duct adaptation to the Variable Wall Mining Machine appears to offer the path to solution. The respirable dust problem is solvable; the explosive dust problem is nearly solvable; and the explosive methane problem can be greatly reduced. If installed in a highly gassy mine, the dual duct models would also be considerably less costly.

NONE

1995-11-12

59

Displays for business machines: operation liquid crystal displays of photocopier machines  

Microsoft Academic Search

It is important to remember that liquid crystal display (LCD) technology was common in business machines long before it was adopted by the cellular telephone industry.This chapter details the role of LCD technology in business machines, using the multi-function photo copier as an illustrative example. Additionally, the function sharing capability of hard keys in conjunction with LCD technology is introduced.

Takafumi Hoshimura

2002-01-01

60

A REPORT FROM THE CIRP WORKING GROUP ON MODELING OF MACHINING OPERATIONS  

Microsoft Academic Search

This paper describes the goals and activities of the CIRP Working Group on Modeling of Machining Operations. The basic aim is to serve the metal-cutting industry through the development of better scientific models that will make it possible to reliably predict machining performance. Many different types of models for metal-cutting operations are classified and evaluated. The working group decided to

C. A. van Luttervelt

1997-01-01

61

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.

62

Wire-cut electrical discharge machinability of ceramics. Final report  

Microsoft Academic Search

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

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

1987-01-01

63

Operator-machine interface at a large laser-fusion facility  

Microsoft Academic Search

The operator-machine interface at the Antares Laser Facility provides the operator with a means of controlling the laser system and obtaining operational and performance information. The goal of this interface is to provide an operator with access to the control system in a comfortable way, and to facilitate meeting operational requirements. We describe the philosophy and requirements behind this interface,

J. G. Sutton; J. A. Howell

1982-01-01

64

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

65

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

66

Operation of micro and molecular machines: a new concept with its origins in interface science.  

PubMed

A landmark accomplishment of nanotechnology would be successful fabrication of ultrasmall machines that can work like tweezers, motors, or even computing devices. Now we must consider how operation of micro- and molecular machines might be implemented for a wide range of applications. If these machines function only under limited conditions and/or require specialized apparatus then they are useless for practical applications. Therefore, it is important to carefully consider the access of functionality of the molecular or nanoscale systems by conventional stimuli at the macroscopic level. In this perspective, we will outline the position of micro- and molecular machines in current science and technology. Most of these machines are operated by light irradiation, application of electrical or magnetic fields, chemical reactions, and thermal fluctuations, which cannot always be applied in remote machine operation. We also propose strategies for molecular machine operation using the most conventional of stimuli, that of macroscopic mechanical force, achieved through mechanical operation of molecular machines located at an air-water interface. The crucial roles of the characteristics of an interfacial environment, i.e. connection between macroscopic dimension and nanoscopic function, and contact of media with different dielectric natures, are also described. PMID:21234498

Ariga, Katsuhiko; Ishihara, Shinsuke; Izawa, Hironori; Xia, Hong; Hill, Jonathan P

2011-01-14

67

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

68

Modelling and On-Line Monitoring of Machined Surface in Turning Operations  

Microsoft Academic Search

Machined surface profile and roughness are important parameters in evaluating the quality of a machining operation. They are\\u000a resulted from the transformation of the complex tool-workpiece displacements involving the dynamics of the machine tool mechanical\\u000a system, cutting process, and cutting motions. The focus of this study is the fundamental understanding of the surface profile\\u000a formation during turning and development of

Avisekh Banerjee; Evgueni V. Bordatchev; Sounak Kumar Choudhury

69

Optimization techniques for machining operations: a retrospective research based on various mathematical models  

Microsoft Academic Search

Simulated annealing, genetic algorithm, and particle swarm optimization techniques have been used for exploring optimal machining\\u000a parameters for single pass turning operation, multi-pass turning operation, and surface grinding operation. The behavior of\\u000a optimization techniques are studied based on various mathematical models. The objective functions of the various mathematical\\u000a models are distinctly different from each other. The most affecting machining parameters

S. Bharathi Raja; N. Baskar

2010-01-01

70

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

2007-03-02

71

Operator-Machine Interface at a Large Laser-Fusion Facility.  

National Technical Information Service (NTIS)

The operator-machine interface at the Antares Laser Facility provides the operator with a means of controlling the laser system and obtaining operational and performance information. The goal of this interface is to provide an operator with access to the ...

J. G. Sutton J. A. Howell

1982-01-01

72

Generalization performance of regularization networks and support vector machines via entropy numbers of compact operators  

Microsoft Academic Search

We derive new bounds for the generalization error of kernel machines, such as support vector machines and related regularization networks by obtaining new bounds on their covering numbers. The proofs make use of a viewpoint that is apparently novel in the field of statistical learning theory. The hypothesis class is described in terms of a linear operator mapping from a

Robert C. Williamson; Alex J. Smola; Bernhard Schölkopf

2001-01-01

73

Comparison of synchronous PM machine types for wide constant-power speed range operation  

Microsoft Academic Search

Purpose – The purpose of this paper is to provide a comparison of synchronous permanent magnet machine types for wide constant power speed range operation. Design\\/methodology\\/approach – A combination of analytical models and finite element analysis is used to conduct this study. Findings – The paper has presented a detailed comparison between various types of synchronous PM machines for applications

Ayman M. EL-Refaie; Thomas M. Jahns

2008-01-01

74

Machine Protection System for Concurrent Operation of RHIC and BLIP.  

National Technical Information Service (NTIS)

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 pro...

M. Wilinski S. Bellavia J. W. Glenn L. F. Mausner K. L. Unger

2005-01-01

75

Machine Protection System for Concurrent Operation of RHIC and BLIP  

Microsoft Academic Search

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

M. Wilinski; S. Bellavia; J. W. Glenn; L. F. Mausner; K. L. Unger

2005-01-01

76

Excavatory machine for use in coal and other mining operations  

Microsoft Academic Search

An excavatory machine for use in coal and other mining, has a pair of rotary cutters for simultaneous presentation to the work. The cutters are mounted on the ends of a medially fulcrumed lever which can be swung about its fulcrum so to increase the work ambit of the combined cutters. The fulcrum has means for raising and lowering it

Wallace

1985-01-01

77

A neural network process model for abrasive flow machining operations  

Microsoft Academic Search

This paper describes the development of a predictive process modeling system for the abrasive flow machining (AFM) process. This process is used for polishing and surface removal of workpieces with an internal flow path. The core of the process modeling system is a set of neural network models that predicts surface finish and dimensional change. These neural network models are

Kimberly L. Petri; Richard E. Billo; Bopaya Bidanda

1998-01-01

78

Fatality Assessment and Control Evaluation (FACE) Report for Massachusetts: A Machine Operator Dies after Becoming Caught in a Computer Numerical Controlled Vertical Milling Machine.  

National Technical Information Service (NTIS)

On June 1, 2005, a 37-year-old male machinist was fatally injured when he became caught in the vertical milling machine he was operating at an aerospace parts manufacturer. The victim had reached into the cabinet of the milling machine when the machine cy...

2008-01-01

79

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

Code of Federal Regulations, 2013 CFR

...operation of power-driven woodworking machines (Order 5). 570.55 Section 570...operation of power-driven woodworking machines (Order 5). (a) Finding and declaration...operation of power-driven wood-working machines are particularly hazardous for...

2013-07-01

80

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

SciTech Connect

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

81

Autonomous Proximity Operations Using Machine Vision for Trajectory Control and Pose Estimation.  

National Technical Information Service (NTIS)

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...

T. F. Cleghorn S. R. Sternberg

1991-01-01

82

Synchronous machine operation with cutout coils: Final report  

Microsoft Academic Search

A project was undertaken to evaluate the performance of power plant three-phase synchronous motors and generators which have suffered stator winding failures and have then been restored to temporary service by cutting out and bypassing the failed coils. Both the circulating current within a multi-circuit phase and the changes in line current as a result of coil or circuit cutouts

W. B. Brighty; C. A. Brown; E. J. Kelch; R. G. Rhudy; H. D. Snively

1987-01-01

83

A Catalog of Performance Objectives, Performance Conditions, and Performance Guides for Machine Tool Operations.  

ERIC Educational Resources Information Center

This catalog provides performance objectives, tasks, standards, and performance guides associated with current occupational information relating to the job content of machinists, specifically tool grinder operators, production lathe operators, and production screw machine operators. The catalog is comprised of 262 performance objectives, tool and…

Stadt, Ronald; And Others

84

Operator-machine interface at a large laser-fusion facility  

SciTech Connect

The operator-machine interface at the Antares Laser Facility provides the operator with a means of controlling the laser system and obtaining operational and performance information. The goal of this interface is to provide an operator with access to the control system in a comfortable way, and to facilitate meeting operational requirements. We describe the philosophy and requirements behind this interface, the hardware used in building it, and the software environment.

Sutton, J.G.; Howell, J.A.

1982-01-01

85

A human-machine interface for multireactor operation  

SciTech Connect

This paper describes interim results of an ongoing joint effort between G.E. Nuclear Energy and Hitachi, Ltd., to develop functional, performance, and anthropometric requirements for a unique nuclear reactor operating console that facilitates operation of three reactors and a steam turbine by a single licensed reactor operator. The human factors engineering (HFE) challenges associated with the operator console are discussed, a conceptual [open quotes]visualization[close quotes] of the console and control room is presented, and operator support concepts (e.g., alarm handling) are briefly described. The Advanced Reactor Programs group with G.E. Nuclear Energy is designing a modular, pool-type, sodium-cooled reactor with unique safety characteristics whereby no mitigative operator action is required in order to meet the plant's safety limits (radiation release criteria). A full-sized, 1440-MW(electric) plant includes nine such reactors configured as three physically separate, independently operated power blocks. One power block consists of three reactors, each with their individual steam generators headered to jointly deliver superheated steam to a turbine generator. All power blocks are operated from one control room. Furthermore, due to greatly reduced reliance on manual safety actions by the operator, control systems are automated to the extent that one power block is operated by one licensed reactor operator. The control room houses three operator consoles (one per power block) and a supervisor's workstation. This is the primary equipment used by the normal control room shift staffing of three licensed reactor operators, a shift supervisor, and an assistant shift supervisor. The operator and the automated control systems will, in principle, perform together as a single entity. However, one operator operating more than one nuclear reactor has no precedent.

Zizzo, D.; Dayal, Y.; Carroll, D. (General Electric Company, Schenectady, NY (United States)); Hashimoto, S.; Ishida, T. (Hitachi Ltd., Ibaraki (Japan))

1993-01-01

86

Economic Census 2002: Retail Trade, Industry Series. Vending Machine Operators.  

National Technical Information Service (NTIS)

The Retail Trade sector comprises establishments engaged in retailing merchandise, generally without transformation, and rendering services incidental to the sale of merchandise. The retailing process is the final step in the distribution of merchandise; ...

2004-01-01

87

PHYSICAL REQUIREMENTS FOR TEACHING MACHINES USING GRAPHIC DISPLAYS. FINAL REPORT, SUPPLEMENT.  

ERIC Educational Resources Information Center

THE OPTICAL AND MECHANICAL REQUIREMENTS FOR GRAPHIC TEACHING MACHINES WERE DISCUSSED IN THIS SUPPLEMENT TO THE FINAL REPORT (ED 003 614). THE DESCRIPTIONS INCLUDED THE DESIGN OF AN AUTOINSTRUCTION SYSTEM, THE FUNDAMENTALS OF PROJECTION DISPLAY, MICROIMAGE PROGRAM MEDIA CHARACTERISTICS, USER NEEDS IN THE SECONDARY SCHOOLS, DETAILS OF EQUIPMENT…

WAITE, D.P.

88

Driftuppfoeljning och produktionsstudier av torvmaskiner 1989. (Operational follow-up and production studies of peat machines 1989).  

National Technical Information Service (NTIS)

The main goal of operational follow-up is to measure (parallel with method development), the technical performance of new and redesigned peat machines available to peat producers. Following types of machines have been tested and comparison of different ma...

J. Burvall S. Junghagen K. Dryler

1989-01-01

89

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

90

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.

91

Intelligent Machine Learning Analysis for Fuel Cell Operations  

SciTech Connect

A performance computational model for a 100 kW nominal solid oxide fuel cell generator system is described. The calculational methods are based on the FORTRAN programming language. Comprehensive parameter input options are presented, and constraints are identified. Example reactant, electrical, and efficiency outputs are demonstrated over the relevant operating ranges. A sample calculated output display at nominal operating conditions is given.

Murphy, R.W.; Hoyt, W.A.

2000-06-30

92

Principles of neural ensemble physiology underlying the operation of brain–machine interfaces  

Microsoft Academic Search

Research on brain–machine interfaces has been ongoing for at least a decade. During this period, simultaneous recordings of the extracellular electrical activity of hundreds of individual neurons have been used for direct, real-time control of various artificial devices. Brain–machine interfaces have also added greatly to our knowledge of the fundamental physiological principles governing the operation of large neural ensembles. Further

Mikhail A. Lebedev; Miguel A. L. Nicolelis

2009-01-01

93

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

Microsoft Academic Search

Summary  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

Bente R. Jensen; Bente Schibye; Karen Søgaard; Erik B. Simonsen; Gisela Sjøgaard

1993-01-01

94

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.

95

Excavatory machine for use in coal and other mining operations  

SciTech Connect

An excavatory machine for use in coal and other mining, has a pair of rotary cutters for simultaneous presentation to the work. The cutters are mounted on the ends of a medially fulcrumed lever which can be swung about its fulcrum so to increase the work ambit of the combined cutters. The fulcrum has means for raising and lowering it and holding it at selected elevation so to suit the height of the seam being worked. The cutter assembly is mounted on a saddle which is laterally slidable and drivable from side-to-side of a base slidable along the excavation floor in the direction the work is required to follow. This base is furnished with means enabling it to be nudged along in the said direction so to force the cutters into the work. The base is provided with conveyor means to take away excavated matter and also with mechanism by which the path followed by the base may be up-or downtrended.

Wallace, J.L.

1985-04-30

96

[Monitoring of functional body status in agricultural machine operators].  

PubMed

Sanitary and hygienic work conditions of operators of different kinds of combine harvesters were evaluated. Pecularities of adaptation of labourers' organism to work process were studied. A technique of remote transmission of physiological data, obtained in the field conditions to remote laboratory for subsequent expert analysis of the results was used. PMID:22855993

Spirin, V F; Buianov, E S; Spirin, A V; Starshov, A M

2012-01-01

97

An open operating system for a single-user machine  

Microsoft Academic Search

The file system and modularization of a single-user operating system are described. The main points of interest are the openness of the system, which establishes no sharp boundary between itself and the user's programs, and the techniques used to make the system robust.

Butler W. Lampson; Robert F. Sproull

1979-01-01

98

Five-phase permanent magnet synchronous machine operating as generator design, parameter determination by FEM and performance  

Microsoft Academic Search

The paper describes the design and parameter calculation of a five-phase permanent magnet synchronous machine intended for operation as generator connected to the load over a rectifier bridge. The main parameters and machine dimensions are determined using the finite element method in 2 dimensions. Calculated no-load induced voltage and inductances are compared with measured values obtained from a prototype machine.

Luis Alberto Pereira; Vicente Mariano Canalli

2002-01-01

99

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

Code of Federal Regulations, 2010 CFR

...power-driven meat-processing machines and occupations involving...power-driven meat-processing machines and occupations involving...infrequently and for short periods of time. (2) All occupations...the operation of lard-roll machines. (3) All...

2010-07-01

100

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

101

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

102

Operations manual for a compact electromechanical fatigue testing machine  

NASA Astrophysics Data System (ADS)

This document gives details of the design and operation of two recently developed load controlled electromechanical shaker systems. These systems have been designed to test materials including composites, alloys, and pure metals with either three or four point bending loads. One system (Mk 1) is designed for room temperature testing only and the other (Mk 2) can also be used at elevated temperatures. The electronic control and drive circuits include new designs by the author, published designs modified by the author, and circuits developed earlier at AMRL. The loading frame and ancillary hardware were designed and built at AMRL.

Sponder, Leopold

1994-12-01

103

Groundwater Contamination from Refinery Operations: Final Report.  

National Technical Information Service (NTIS)

The objective of this research project has been to evaluate the problems of groundwater contamination which are attributable to refining operations and to produce a model that will describe the transport of the hydrocarbon phase through the unsaturated zo...

J. Wells D. Brinkman K. Q. Stirling

1988-01-01

104

SEPACT III Final Report: Operation Reading.  

National Technical Information Service (NTIS)

The purpose of the demonstration project operation reading was to develop and test techniques for restructuring commuter railroad service in order to eliminate a deficit while maintaining the same level of service. The techniques tested included service i...

1971-01-01

105

Groundwater Contamination from Refinery Operations. Final Report.  

National Technical Information Service (NTIS)

The focus of this project has been on examining all available sources for information on groundwater contamination from refining operations. Once the information was gathered, it was carefully researched with the following goals in mind. (1) To define the...

H. H. Comstock K. Q. Stirling

1986-01-01

106

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.

Cho, Jeong-Yeon

2012-01-01

107

MACHINE TOOL OPERATOR--GENERAL, ENTRY, SUGGESTED GUIDE FOR A TRAINING COURSE.  

ERIC Educational Resources Information Center

THE PURPOSE OF THIS CURRICULUM GUIDE IS TO ASSIST THE ADMINISTRATOR AND INSTRUCTOR IN PLANNING AND DEVELOPING MANPOWER DEVELOPMENT AND TRAINING PROGRAMS TO PREPARE MACHINE TOOL OPERATORS FOR ENTRY-LEVEL POSITIONS. THE COURSE OUTLINE PROVIDES UNITS IN -- (1) ORIENTATION, (2) BENCH WORK, (3) SHOP MATHEMATICS, (4) BLUEPRINT READING AND SKETCHING, (5)…

RONEY, MAURICE W.; AND OTHERS

108

An experimental study of an ejector cycle refrigeration machine operating on R113  

Microsoft Academic Search

This paper discusses an ejector cycle refrigeration machine that can use a wide range of refrigerants including halocarbons. The feature of such a system is the possibility of using a low grade heat source such as solar energy and waste heat to operate the system. A theoretical analysis was carried out to select a suitable refrigerant for the system. The

Nehad Al-Khalidy

1998-01-01

109

Technology and Jobs: Computer-Aided Design. Numerical-Control Machine-Tool Operators. Office Automation.  

ERIC Educational Resources Information Center

Three reports on the effects of high technology on the nature of work include (1) Stanton on applications and implications of computer-aided design for engineers, drafters, and architects; (2) Nardone on the outlook and training of numerical-control machine tool operators; and (3) Austin and Drake on the future of clerical occupations in automated…

Stanton, Michael; And Others

1985-01-01

110

New magnetic material impact in electric machine design: high speed operation and reduction of losses  

Microsoft Academic Search

The paper presents electrical actuator design considerations introduced by exploiting new magnetic material characteristics. The materials considered are amorphous alloy ribbons as well as neodymium alloy permanent magnets involving very low eddy current losses. Such materials enable electric machine operation at higher frequencies compared with the standard iron laminations used in the traditional magnetic circuit construction and provide better efficiency.

G. Kalokiris; A. Kladas

2003-01-01

111

Particle Size Studies on Uranium Aerosols from Machining and Metallurgy Operations  

Microsoft Academic Search

Cascade impactors and optical measurements were used to estimate the ; particle size distribution of uranium aerosols that were dispersed during ; machining and various metallurgical operations. The mass median diameter of air-; borne foundry dust ranged from 2.0 to 4.5 ic . The largest mass ; median diameter range determined by cascade impactors was 0.4 to 3.9 ic ;

E. C. Hyatt; W. D. Moss; H. F. Schulte

1959-01-01

112

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

113

Sacramento Operations Center final environmental assessment  

SciTech Connect

The Western Area Power Administration (Western) proposes to construct a new operations center in the metropolitan Sacramento area to eliminate overcrowding present in existing facilities and to improve efficiency. Alternatives considered for meeting the stated need include three different sites in the Sacramento metropolitan area, as well as no action. The three proposed sites have been evaluated based on four general categories: environmental impacts, economics, location, and operational efficiency. The proposed construction would consist of a building, adjacent parking lot, communications facilities. Field surveys conducted on the proposed sites include: a geotechnical survey, a cultural resources surveys and a biological assessment. These surveys revealed no unmitigable adverse impacts.

Not Available

1992-08-01

114

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

SciTech Connect

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 with surface areas greater than or equal to 1.8 square meters (19 square feet) to control emissions to the level achievable by the best demonstrated system of continuous emission reduction, taking into consideration cost of achieving such emission reduction and any nonair quality health and environmental impact and energy requirements.

Almodovar, P.A.

1994-08-01

115

Spectral solution of the incompressible Navier-Stokes equations on the connection machine 2. Final report  

Microsoft Academic Search

The issue of solving the time-dependent incompressible Navier-Stokes equations on the Connection Machine 2 is addressed, for the problem of transition to turbulence of the steady flow in a channel. The spectral algorithm used serially requires O(N(4)) operations when solving the equations on an N x N x N grid; using the massive parallelism of the CM, it becomes an

S. Tomboulian; C. Streett; M. Macaraeg

1989-01-01

116

Commercialization of on-machine sensors to measure paper mechanical properties. Final report  

SciTech Connect

The objective of this project is to develop sensors capable of measuring the velocity of ultrasound in the thickness and in-plane directions of a moving paper web as it is being produced on the paper machine. The velocity of ultrasound can be used to determine various mechanical properties of paper, e.g., the square of the velocity times the basis weight is a measure of the extensional stiffness. On-machine measurements would allow continuous monitoring of product quality as well as provide data for controlling the papermaking process. This report summarizes work supported by Cooperative Agreement No. DE-FC05-93CE40006, USDOE, and by the member companies of the Institute of Paper Science and Technology (IPST). The central purpose of this grant, effective from October 1, 1993 through June 30, 1994, was to establish a plan: to develop a commercially viable system for on-machine, out-of-plane, and in-plane measurements of ultrasonic velocities; install a working system on a paper machine in a host paper mill; demonstrate the system`s capabilities and benefits to the paper manufacturing industry; and have a vendor committed to providing and supporting the system. This report first presents a review of the background and potential benefits of on-line ultrasonic velocity measurements. Then the results of the work supported by the previous contract are summarized followed by additional measurements on moving webs in the laboratory. Out-of-plane (ZD) and in-plane ultrasonic velocity data for 26-lb medium and 42-lb liner samples are presented and discussed, illustrating the type of data that will be available from on-machine measurements. Finally, the status of the plans and support for continued work toward commercialization is reviewed.

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

1994-09-01

117

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

118

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.

119

Safety illusion and error trap in a collectively-operated machine accident.  

PubMed

Workplace accidents involving machines are relevant for their magnitude and their impacts on worker health. Despite consolidated critical statements, explanation centered on errors of operators remains predominant with industry professionals, hampering preventive measures and the improvement of production-system reliability. Several initiatives were adopted by enforcement agencies in partnership with universities to stimulate production and diffusion of analysis methodologies with a systemic approach. Starting from one accident case that occurred with a worker who operated a brake-clutch type mechanical press, the article explores cognitive aspects and the existence of traps in the operation of this machine. It deals with a large-sized press that, despite being endowed with a light curtain in areas of access to the pressing zone, did not meet legal requirements. The safety devices gave rise to an illusion of safety, permitting activation of the machine when a worker was still found within the operational zone. Preventive interventions must stimulate the tailoring of systems to the characteristics of workers, minimizing the creation of traps and encouraging safety policies and practices that replace judgments of behaviors that participate in accidents by analyses of reasons that lead workers to act in that manner. PMID:22317204

de Almeida, Ildeberto Muniz; Nobre, Hildeberto; do Amaral Dias, Maria Dionísia; Vilela, Rodolfo Andrade Gouveia

2012-01-01

120

Limitations Of The Current State Space Modelling Approach In Multistage Machining Processes Due To Operation Variations  

NASA Astrophysics Data System (ADS)

The State Space modelling approach has been recently proposed as an engineering-driven technique for part quality prediction in Multistage Machining Processes (MMP). Current State Space models incorporate fixture and datum variations in the multi-stage variation propagation, without explicitly considering common operation variations such as machine-tool thermal distortions, cutting-tool wear, cutting-tool deflections, etc. This paper shows the limitations of the current State Space model through an experimental case study where the effect of the spindle thermal expansion, cutting-tool flank wear and locator errors are introduced. The paper also discusses the extension of the current State Space model to include operation variations and its potential benefits.

Abellán-Nebot, J. V.; Liu, J.; Romero, F.

2009-11-01

121

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

122

Electromagnetic Power Absorption and Temperature Changes due to Brain Machine Interface Operation  

Microsoft Academic Search

To fully understand neural function, chronic neural recordings must be made simultaneously from 10s or 100s of neurons. To\\u000a accomplish this goal, several groups are developing brain machine interfaces. For these devices to be viable for chronic human\\u000a use, it is likely that they will need to be operated and powered externally via a radiofrequency (RF) source. However, RF\\u000a exposure

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

2007-01-01

123

Logistics Machining Data.  

National Technical Information Service (NTIS)

Contents: Machining operations; tool geometry; cutting fluids; electrical, chemical, special mechanical and optical machining processes; supplemental machining data and information; economics in machining; instructions in machining; surface finish; numeri...

1966-01-01

124

Fatality Assessment and Control Evaluation (FACE) Report for Wisconsin: Machine Operator Dies When Struck By Flying Wood Chipper Guard.  

National Technical Information Service (NTIS)

On July 22, 2005, a 56-year-old machine operator (the victim) died after he was struck by a flying guard from a wood chipper. The victim was working alone when he shut down the chipper. The chipper was a machine used to reduce wood edging and other wood w...

2006-01-01

125

Prediction of the Operational Impedance of Rotating Machines by Various DC Testing Methods  

NASA Astrophysics Data System (ADS)

This paper presents methods to determine the operational impedance of rotating machines by Fourier Transformation of the voltage and current measured when a step (or pulse) voltage is applied to the two stator winding terminals. These standstill tests using a small-capacity DC power supply unit are tentatively named the DC Testing Method. We also describe in detail the case using a DC power source with ripple and the case in which a step (or pulse) voltage is applied with current flowing. These methods are applied to a 5.5kW squirrel-cage induction motor having semi-closed rotor slots. The validity of the proposed prediction methods is demonstrated by comparing the calculated and measured speed characteristics of the tested induction machine.

Yamamoto, Shu; Gotou, Takashi; Ara, Takahiro

126

Fatal Accident Circumstances and Epidemiology (FACE) Report: 34 Year-Old Machine Operator Electrocuted in Ohio, November 1, 1986.  

National Technical Information Service (NTIS)

A machine operator was electrocuted when he inadvertently contacted an energized conductor located in a motor control panel box that had the cover plate removed. He was employed in a manufacturing company division responsible for packaging and shipment of...

1986-01-01

127

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

128

Final operations of the Tokamak Fusion Test Reactor (TFTR)  

Microsoft Academic Search

In April of 1997, The TFTR completed it's final operating period bringing to a close a highly successful phase of research in plasma science. The TFTR produced over 80,000 high power plasmas since 1982 with the objectives of studying the plasma physics of large tokamaks, gaining experience in the solution of engineering problems associated with large fusion systems, and demonstrating

A. von Halle

1997-01-01

129

Fatality Assessment and Control Evaluation (FACE) Report for Iowa: Female Machine Operator Killed When Working on a Punch Press.  

National Technical Information Service (NTIS)

A 43-year-old female machine operator died while operating a punch press on June 25, 1998. When the punch press operates, small sections of the metal sheet, called knockout, slugs, or scrap, drop below the press and accumulated on the die bed directly bel...

1999-01-01

130

Work-organisational and personal factors associated with upper body musculoskeletal disorders among sewing machine operators  

PubMed Central

Objective To assess the contribution of work-organisational and personal factors to the prevalence of work-related musculoskeletal disorders (WMSDs) among garment workers in Los Angeles. Methods This is a cross-sectional study of self-reported musculoskeletal symptoms among 520 sewing machine operators from 13 garment industry sewing shops. Detailed information on work-organisational factors, personal factors, and musculoskeletal symptoms were obtained in face-to-face interviews. The outcome of interest, upper body WMSD, was defined as a worker experiencing moderate or severe musculoskeletal pain. Unconditional logistic regression models were adopted to assess the association between both work-organisational factors and personal factors and the prevalence of musculoskeletal pain. Results The prevalence of moderate or severe musculoskeletal pain in the neck/shoulder region was 24% and for distal upper extremity it was 16%. Elevated prevalence of upper body pain was associated with age less than 30 years, female gender, Hispanic ethnicity, being single, having a diagnosis of a MSD or a systemic illness, working more than 10?years as a sewing machine operator, using a single sewing machine, work in large shops, higher work–rest ratios, high physical exertion, high physical isometric loads, high job demand, and low job satisfaction. Conclusion Work-organisational and personal factors were associated with increased prevalence of moderate or severe upper body musculoskeletal pain among garment workers. Owners of sewing companies may be able to reduce or prevent WMSDs among employees by adopting rotations between different types of workstations thus increasing task variety; by either shortening work periods or increasing rest periods to reduce the work–rest ratio; and by improving the work-organisation to control psychosocial stressors. The findings may guide prevention efforts in the garment sector and have important public health implications for this workforce of largely immigrant labourers.

Wang, P-C; Rempel, D M; Harrison, R J; Chan, J

2007-01-01

131

Laser device for measuring the trajectories of the moving operating elements of machine tools  

Microsoft Academic Search

Nowadays, the high demands made on the accuracy of machine tools make it necessary to develop new methods and devices for controlling the accuracy parameters which determine the quality of the machine tool itself. The programming method of testing machine tools, developed in the N. E. Bauman Advanced Technical School [i], makes it possible to estimate the machine tool quality

A. R. Asatryan

1989-01-01

132

An assessment of quasi-static and operational errors in NC machine tools  

Microsoft Academic Search

This paper reports the results of a comparative study of predictive error modeling and machining-cycle machine tool accuracy. The total positional error due to geometric accuracy errors was modeled for a particular type of NC machine tool. Subsequently, the NC machine tool was tested for geometric accuracy for repeatability, small-load hysteresis, linear displacement accuracy, straightness, roll, pitch, yaw, and spindle

S. Chatterjee

1997-01-01

133

Performance and operational characteristics of the WSU compact pulser power machine for shockless compression  

NASA Astrophysics Data System (ADS)

A compact pulsed power machine (CPPM) is now operational at the Institute for Shock Physics. Development of this capability, to carry out shockless compression, was closely coordinated with similar developments at Sandia Laboratories. In preparation for dynamic material property experiments, the performance and operational aspects of the CPPM were characterized by considering two panel materials (aluminum and copper), two panel widths (15 mm and 20 mm) utilizing the Sandia design, and two charging voltages (65 and 70 kV). Free surface velocities were monitored to determine the input pulse into the samples of interest. Results from these experiments have provided an envelope of peak stresses and rise times that can be obtained using the present configuration of the CPPM. Results regarding uniformity and wave shapes will be presented. Work supported by ONR and DOE. Discussions with colleagues at Sandia National Laboratories are acknowledged.

Jaglinski, T.; Bakeman, C. J.; Asay, J. R.; Lafollett, J.; Zimmerman, K.; Gupta, Y. M.

2007-06-01

134

EUV Spectroscopy of Low-Temperature Plasmas Created in the Final Anode-Cathode Gap of the Z-Machine  

Microsoft Academic Search

Summary form only given. The effect of a short-circuit across the final anode-cathode gap of the powerful Z-Accelerator could hamper effective power delivery-to the Z-pinch plasma. The objective of this work is to develop EUV spectroscopy methods for electron temperature Te measurements in plasmas created in the final transmission line (A-K gap near the load) of the Z-Accelerator (Z-Machine) at

A. P. Shevelko; E. D. Kazakov; I. Yu. Tolstikhina; D. E. Bliss; M. G. Mazarakis; J. S. McGurn; K. W. Struve

2007-01-01

135

Damage diagnosis under environmental and operational variations using unsupervised support vector machine  

NASA Astrophysics Data System (ADS)

The goal of structural health monitoring is to provide reliable information regarding damage states that include damage presence, location, and severity. Damage diagnosis is performed by utilizing measurements that are obtained from a structure being monitored. However, time-varying environmental and operational conditions such as temperature and external loading may produce an adverse effect on damage detection within the structure exposed to these changes. Therefore, in order to achieve successful structural health monitoring goals, it is necessary to develop data normalization techniques which distinguish the effects of damage from those caused by environmental and operational variations. In this study, nonlinear principal component analysis based on unsupervised support vector machine is introduced and incorporated with a discrete-time prediction model and a hypothesis test for data normalization. The proposed nonlinear principal component analysis characterizes the nonlinear relationship between extracted damage-sensitive features and unmeasured environmental and operational parameters by employing kernel functions and by solving a simple eigenvalue problem. The performance of the proposed method is compared with that of another nonlinear principal component analysis realized by auto-associative neural network. It is demonstrated that the proposed method is a promising data normalization tool that is capable of detecting damage in the presence of environmental and operational variations.

Oh, Chang Kook; Sohn, Hoon

2009-08-01

136

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

PubMed

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. PMID:24100357

Kolomeisky, Anatoly B

2013-10-07

137

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

138

Widely tunable singlemode surface micro-machined MEMS-VCSELs operating at 1.95-?m  

NASA Astrophysics Data System (ADS)

We present surface micro-machined micro-electro mechanical-system (MEMS) tunable vertical-cavity surfaceemitting lasers (VCSEL) with rectangular and triangular shaped quantum wells (QWs) emitting around 1:95 ?m predestined for broadband tunable diode laser absorption spectroscopy. The VCSELs show single-mode operation and high side-mode suppression-ratio SMSR < 50 dB within the whole tuning range of 50nm and 35 nm, the fibre-coupled optical power of 1:0mW and 1:76mW and the threshold current of 2:5mA and 2:0mA for the rectangular and triangular shaped QWs respectively. The 3 dB modulation frequency of the MEMS is 110 Hz.

Zogal, Karolina; Gruendl, Tobias; Gierl, Christian; Paul, Sujoy; Grasse, Christian; Meissner, Peter; Amann, Marcus-Christian; Kueppers, Franko

2013-03-01

139

Realization of universal optimal quantum machines by projective operators and stochastic maps  

SciTech Connect

Optimal quantum machines can be implemented by linear projective operations. In the present work a general qubit symmetrization theory is presented by investigating the close links to the qubit purification process and to the programmable teleportation of any generic optimal antiunitary map. In addition, the contextual realization of the N{yields}M cloning map and of the teleportation of the N{yields}(M-N) universal-NOT (UNOT) gate is analyzed by a very general angular momentum theory. An extended set of experimental realizations by state symmetrization linear optical procedures is reported. These include the 1{yields}2 cloning process, the UNOT gate and the quantum tomographic characterization of the optimal partial transpose map of polarization encoded qubits.

Sciarrino, F.; Sias, C.; Ricci, M.; De Martini, F. [Istituto Nazionale per la Fisica della Materia, Dipartimento di Fisica, Universita di Roma 'La Sapienza', Rome, 00185 (Italy)

2004-11-01

140

Alternative Vibration Protecting Systems for Men-Operators of Transport Machines: Modern Level and Prospects  

NASA Astrophysics Data System (ADS)

The up-to-date level and a few of the prospects are considered in transport biomechanical vibration protection systems. An experimental estimation of the maximum capabilities of traditional vibration protecting mechanisms (VPMs) used in driver seats is given. Some of the points of synthesis and research for the adaptive VPMs, called mechanisms of elastic links with small stiffness (ELSS-mechanisms) are presented. They contain a novel object of control: non-linear elastic elements with variable torsion ``negative'' stiffness (TNS). These TNS-elements help to optimize VPMs according to certain criteria and give them invariant structural and functional properties. Some experimental results are presented, and they correspond well with theoretical predictions. An approach is demonstrated for grade of quality of vibration protection of the men-operators of land unsuspended machines and pilots of helicopters.

Lee, C.-M.; Goverdovskiy, V. N.

2002-01-01

141

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

142

Characteristics and treatability of oil-bearing wastes from aluminum alloy machining operations.  

PubMed

Enomoto Industry Co., exclusively uses water-based cutting fluids in its aluminum alloy machining operations. Since the cost of disposal can be much greater than the cost of purchase, the treatability of spent cutting fluids is becoming a major criterion for cutting fluid selection. Samples were collected from the machining lines at Enomoto's facility to determine their characteristics and evaluate their treatability with centrifugation, chemical coagulation and electrochemical coagulation. As expected, oil and grease (O&G) and total suspended solids (TSS) are the main reasons that spent cutting fluids are prohibited from being discharged into local swage systems. The average O&G found in the spent cutting fluids is 87,354 mg/L with TSS of more than 70,000 mg/L. Both O&G and TSS are the major contributors to the high turbidity of these waste effluents. A centrifuge with a relative centrifugal force of 1318 x g, was able to reduce 60% of the turbidity. By adding the coagulant aluminum chloride, the oil-water emulsion was destabilized, and the turbidity was reduced from 3249 Formazin Attenuation Units (FAU) to around 314 FAU. With freshly generated aluminum ions in the spent cutting fluid, the electrochemical process destabilized the oil-water emulsion system. The coalesced oil droplets were adsorbed onto the highly dispersed aluminum coagulant. The oil-rich sludge that was generated in the operation was then floated to the surface, forming a blanket that was removed by skimming. The electrochemical treatment was able to reduce the turbidity to less than 14 FAU, which is the detection limit of the Hach DR/4000 UV-vis spectrophotometer. PMID:17850956

Chen, Luke; Hsieh, Chueh-Chen; Wetherbee, John; Yang, Chen-Lu

2007-08-06

143

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

144

Continuous slipformed-concrete lining system compatible with the Blind Shaft Boring Machine. Final technical report as of June 1978  

Microsoft Academic Search

This report describes the design of a continuous shaft lining system and a continuously extendible service line extension system to be utilized in conjunction with the Blind Shaft Boring Machine. The objective of this design program is to allow the BSB to operate an a continuous basis, free from interference and interruptions caused by the present lining and service line

Wallhagen

1978-01-01

145

Site Operator technical report. Final report (1992--1996)  

SciTech Connect

The Southern California Edison Company (SCE) and the US Department of Energy (DOE) entered into cooperative agreement No. DE-FC07-91ID13077 on August 23, 1991, which expired on August 3, 1996. This cooperative agreement provided SCE with DOE cofunding for participation in the DOE`s Electric and Hybrid Vehicle Site Operator Program. In return, SCE provided the DOE with quarterly progress reports which include operating and maintenance data for the electric (EVs) vehicles in SCE`s fleet. Herein is SCE`s final report for the 1992 to 1996 agreement period. As of September 1, 1996 the SCE fleet had 65 electric vehicles in service. A total of 578,200 miles had been logged. During the agreement period, SCE sent the DOE a total of 19 technical reports (Appendix B). This report summarizes the technical achievements which took place during a long, productive and rewarding, relationship with the DOE.

NONE

1996-12-01

146

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

National Technical Information Service (NTIS)

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 in...

1995-01-01

147

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

148

A function-behavior-state approach to designing human-machine interface for nuclear power plant operators  

Microsoft Academic Search

This paper presents an approach to human-machine interface design for control room operators of nuclear power plants. The first step in designing an interface for a particular application is to determine information content that needs to be displayed. The design methodology for this step is called the interface design framework (called framework ). Several frameworks have been proposed for applications

Y. Lin; W. J. Zhang

2005-01-01

149

Stochastic optimal control as a theory of brain-machine interface operation.  

PubMed

The closed-loop operation of brain-machine interfaces (BMI) provides a framework to study the mechanisms behind neural control through a restricted output channel, with emerging clinical applications to stroke, degenerative disease, and trauma. Despite significant empirically driven improvements in closed-loop BMI systems, a fundamental, experimentally validated theory of closed-loop BMI operation is lacking. Here we propose a compact model based on stochastic optimal control to describe the brain in skillfully operating canonical decoding algorithms. The model produces goal-directed BMI movements with sensory feedback and intrinsically noisy neural output signals. Various experimentally validated phenomena emerge naturally from this model, including performance deterioration with bin width, compensation of biased decoders, and shifts in tuning curves between arm control and BMI control. Analysis of the model provides insight into possible mechanisms underlying these behaviors, with testable predictions. Spike binning may erode performance in part from intrinsic control-dependent constraints, regardless of decoding accuracy. In compensating decoder bias, the brain may incur an energetic cost associated with action potential production. Tuning curve shifts, seen after the mastery of a BMI-based skill, may reflect the brain's implementation of a new closed-loop control policy. The direction and magnitude of tuning curve shifts may be altered by decoder structure, ensemble size, and the costs of closed-loop control. Looking forward, the model provides a framework for the design and simulated testing of an emerging class of BMI algorithms that seek to directly exploit the presence of a human in the loop. PMID:23148413

Lagang, Manuel; Srinivasan, Lakshminarayan

2012-11-13

150

Application of fuzzy and rough sets theory in the optimization of machining parameters for mold milling operations  

Microsoft Academic Search

NC milling operation has become one of the main means of mold manufacturing in recent years, and the determination of milling\\u000a conditions is important to assure the quality and minimize the costs of molds. This paper first constructs an optimization\\u000a model of machining parameters for mold milling operations, focusing on minimizing the production costs. Then, based on the\\u000a properties of

Jiang Yajun; Lou Zhenliang; Li Minghui

2006-01-01

151

Description of a Method and Artifact for Estimating Volumetric Uncertainty of Coordinate Measuring Machines. Final Report.  

National Technical Information Service (NTIS)

Methodology that expresses the volumetric uncertainty of coordinate measuring machines (CMMs) in a single index is developed. A Latin Square Three-Dimensional Ball Plate (LS3DBP) is the artifact used to obtain statistically balanced data that are analyzed...

L. L. Jones J. V. Grice

1983-01-01

152

Alternative Inhibitors for Ammonia/Water Refrigeration Machines. Final Report, July 1990-June 1992.  

National Technical Information Service (NTIS)

The report presents the test results on two inorganic compounds chosen as environmentally safe alternatives to the sodium chromate corrosion inhibitors that is currently used to protect carbon steel surfaces in ammonia/water refrigeration machines. At the...

B. Hindin A. K. Agrawal

1992-01-01

153

Process Acceptance and Adjustment Techniques for Swiss Automatic Screw Machine Parts. Final Report.  

National Technical Information Service (NTIS)

Product tolerance requirements for small, cylindrical, piece parts produced on swiss automatic screw machines have progressed to the reliability limits of inspection equipment. The miniature size, configuration, and tolerance requirements (plus or minus 0...

J. M. Robb

1976-01-01

154

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

155

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 ...

Keller, Mrs.

2010-01-17

156

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.

157

The Vienna induction machine monitoring method; on the impact of the field oriented control structure on real operational behavior of a faulty machine  

Microsoft Academic Search

Rotor cage asymmetries cause disturbances of the flux pattern in induction machines. These nonuniform magnetic field components affect machine torque and stator terminal quantities and are thus detectable by monitoring systems. However, the impact of minor machine asymmetries on the overall machine behavior is quite small. This makes the separation of the fault specific signals out of commonly distorted measurement

Rudolf S. Wieser; Christian Kral; Franz Pirker

1998-01-01

158

On-line synchronous machine parameter estimation from small disturbance operating data  

Microsoft Academic Search

This paper presents a step-by-step system identification approach to estimate the parameters of a three-phase salient-pole synchronous machine rated at 5 kVA from online small disturbance responses. The machine equivalent circuit model linear parameters and the nonlinear saturated parameters are estimated. The estimation is performed using the maximum likelihood algorithm. Simulation studies based on the online measured small and large

H. Tsai; A. Keyhani; J. Demcko; R. G. Farmer

1995-01-01

159

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

160

Programming Languages as Operating Systems (or Revenge of the Son of the Lisp Machine)  

Microsoft Academic Search

The MrEd virtual machine serves both as the implementa- tion platform for the DrScheme programming environment, and as the underlying Scheme engine for executing expres- sions and programs entered into DrScheme's read-eval-print loop. We describe the key elements of the MrEd virtual machine for building a programming environment, and we step through the implementation of a miniature version of DrScheme

Matthew Flatt; Robert Bruce; Findler Shriram; Krishnamurthi Matthias

161

Description of a method and artifact for estimating volumetric uncertainty of coordinate measuring machines. Final report  

SciTech Connect

Methodology that expresses the volumetric uncertainty of coordinate measuring machines (CMMs) in a single index is developed. A Latin Square Three-Dimensional Ball Plate (LS3DBP) is the artifact used to obtain statistically balanced data that are analyzed using Latin square analysis of variance (AOV) to provide quantitative estimates of systematic and random error in the CMM measurement system. Estimates of systematic and random error for the nominal values assigned to the LS3DBP are obtained from analysis of calibration data using one-way AOV. A single index, expressed in radial distance, is obtained by combining the systematic and random errors of the artifact and CMM measurement system with the fixed error assigned to the primary measurement system. The Latin square analysis is also used to identify 15 single sources of error in machine geometry by interpretation of the form of axis effects and by using one- and two-dimensional plots. The notation and methodology developed can be extended to measurement systems other than CMMs. It is currently being used to evaluate robotics machines and numerical control milling machines. The use of the LS3DBP requires 70 percent less time than some conventional techniques to estimate CMM uncertainty in volumetric space.

Jones, L.L.; Grice, J.V.

1983-11-01

162

Development of out-of-core fast Fourier transform software for the connection machine. Final report  

SciTech Connect

This report describes the algorithm and implementation of an out-of-core Fast Fourier Transform routine for the Thinking Machines Corp. CM-5 parallel computer. The software has the capability of transforming multi-dimensional arrays that are both real and complex.

Sweet, R.; Wilson, J. [Univ. of Colorado, Denver, CO (United States). Center for Computational Mathematics

1995-10-01

163

Machine Oils and Nitrosamines Study for Carcinogenesis in Mice - Final Report.  

National Technical Information Service (NTIS)

The effects of 11 synthetic machine cutting oils were examined in mice. Each oil was analyzed for diethanol-N-nitrosamine by gas chromatography. Groups of Agouti-C3H/HFJ-mice received 0.05 milliliters of each oil topically twice weekly for 98 weeks. Each ...

1982-01-01

164

Develop a field grid system for yield mapping and machine control. Final report, Invention 544  

SciTech Connect

The objective of this project was to build and test the Field Grid Sense system for yield mapping and machine control during harvesting. Secondly, to use Field Grid Sense system with chemical application equipment to demonstrate a workable in-field system. This document contains summarized quarterly reports.

NONE

1995-12-15

165

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

2012-03-15

166

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

NASA Astrophysics Data System (ADS)

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.

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

2012-03-01

167

The autoscritcher and the superscritcher: aids to cryptanalysis of the German Enigma cipher machine, 1944-6  

Microsoft Academic Search

At the US Army Signal Security Agency during World War II, two systems were built to assist cryptanalysts in breaking messages enciphered on Enigma-type machines. Called the Autoscritcher, the first machine used relay technology. The final system, the Superscritcher, was fully electronic and contained about 3500 vacuum tubes. Both machines operated successfully. The system approach both machines was the same,

DAVID J. CRAWFORD; PHILIP E. FOX

1992-01-01

168

Optimum selection of machining conditions in abrasive flow machining using neural network  

Microsoft Academic Search

Abrasive flow machining (AFM) is a finishing process with wider bounds of application areas, which offers both automation and flexibility in final machining operations. This paper presents the use of neural network for modeling and optimal selection of input parameters of AFM process. First, a generalized back-propagation neural network with four inputs, two outputs, and one hidden layer has been

Rajendra Kumar Jain; Vijay Kumar Jain

2000-01-01

169

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

170

Control strategies for power smoothing using a flywheel driven by a sensorless vector-controlled induction machine operating in a wide speed range  

Microsoft Academic Search

This paper presents a novel control strategy for power smoothing. The system is based on a sensorless vector-controlled induction machine driving a flywheel. The problem of regulating the DC-link voltage against input power surges or sudden changes in load demand is addressed. The induction machine is controlled to operate in a wide speed range by using flux weakening above rated

Roberto Cárdenas; Rubén Peña; Greg M. Asher; Jon Clare; Ramón Blasco-Giménez

2004-01-01

171

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

Microsoft Academic Search

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

B. Kolmodin-Hedman; K. Hansson Mild; M. Hagberg; E. Jönsson; M.-C. Andersson; A. Eriksson

1988-01-01

172

Fault diagnosis using support vector machine with an application in sheet metal stamping operations  

Microsoft Academic Search

This paper presents a new method for fault diagnosis using a newly developed method, support vector machine (SVM). First, the basic theory of the SVM is briefly reviewed. Next, a fast implementation algorithm is given. Then the method is applied for the fault diagnosis in sheet metal stamping processes. According to the tests on two different examples, one is a

Ming Ge; R. Du; Guicai Zhang; Yangsheng Xu

2004-01-01

173

Effect of shape factor, operating stresses, and electrical conductors on the energy density of rotating machines  

Microsoft Academic Search

The ability to store as much energy as possible for the least weight, defined by the rotor's energy density (U\\/m~J\\/g), is of paramount importance to the pulsed power supply of electromagnetic guns. This paper extends the work presented in a complementary paper in which the shape factors, Fs, for a representative number of rotating machines were derived and compared. The

Robert Acebal

1996-01-01

174

Computer-Controlled Test System for Operating Different Wear Test Machines.  

National Technical Information Service (NTIS)

The report discusses a wear tester control system, where the same computer and software runs three different wear test machines; a commercial crossed-cylinder, a commercial block-on-ring, and an in-house designed controlled-atmosphere tribometer. The comp...

E. P. Whitenton A. W. Ruff

1989-01-01

175

Tuning Machine-Learning Algorithms for Battery-Operated Portable Devices  

Microsoft Academic Search

Machine learning algorithms in various forms are now increasingly being used on a variety of portable devices, starting from cell phones to PDAs. They often form a part of standard applications (e.g. for grammar-checking in email clients) that run on these devices and occupy a signific ant fraction of pro- cessor and memory bandwidth. However, most of the research within

Ziheng Lin; Yan Gu; Samarjit Chakraborty

2010-01-01

176

Design of operating conditions for crackfree laser-assisted machining of mullite  

Microsoft Academic Search

The present study focuses on the evaluation of the laser-assisted machining (LAM) of pressureless sintered mullite ceramics. Due to mullite’s low thermal diffusivity and inferior tensile strength, a new method for applying laser power is devised to eliminate cracking and fracture of the workpiece during laser heating by controlling the development of temperature gradients. Numerical modeling of workpiece temperature along

Patrick A. Rebro; Yung C. Shin; Frank P. Incropera

2004-01-01

177

On-line control of machine tool vibration during turning operation  

Microsoft Academic Search

The paper describes a control system designed to improve the surface finish during turning by reducing the vibration of the machine tool. Vibration control is achieved by sensing the relative vibration between the tool and the work-piece, generating a force which tends to neutralize the excitation. The control system consists of an optical sensor for measuring the relative displacement between

S. K. Choudhury; M. S. Sharath

1995-01-01

178

The Vibrations Transmissibility from the Machine-Tools to the Human Operator's Elbow, on the \\  

Microsoft Academic Search

The present paper represents a study about the measurement possibilities of the reaction of the human elbow exposed to the mechanical vibrations action, produced by devices and machine-tools. The mechanical vibration and other factors have negative effects on the exposed person's health. The affections these persons are exposed to are especially of sanguine, muscle, bones, nervous type

M. Arghir; A. F. Cristea

2006-01-01

179

Inter-cycle variation in whole-body vibration exposures of operators driving track-type loader machines  

NASA Astrophysics Data System (ADS)

Whole-body vibration (WBV) measurements are an important aspect of performing risk assessments for those exposed to vibration. A large array of variables affect the outcome of a vibration measurement and its extrapolation to a daily dose measure: e.g. variability in driving style, road surface roughness, loading. The variability in vibration emission is an inherent property for most vibrating environments and there is a risk that a vibration measurement might not be representative of the long-term exposures. It is important to acknowledge the variation inherent to WBV exposure to help understand how this variation will affect health risk assessments. A field investigation was conducted in order to characterise the variation of WBV magnitudes between work cycles of track-type loaders. Six different track-type loaders were measured at four different work sites. The vibrations were measured at the operators seat in three translational axes (x-, y-, and z-axis) in accordance with ISO 2631-1 (1997). The findings indicate the worst axis of vibration for the track-type loaders was predominantly the fore-and-aft (x-axis), for most operations. The most severe emission values were measured for machine C at site 2 (1.12 ms-2 rms) and machine D at site 2 (1.03 ms-2 rms). These machines would exceed the action value of the Physical Agents (Vibration) Directive within 2 h of exposure. All of the machines measured would exceed the exposure action value of the Directive within an 8 h working period. The lateral (y-axis) produced the greatest amount of variability between work cycles (coefficient of variation up to 20%). It is concluded that the inherent variability between work cycles and tasks reinforces the requirement to perform a full task analysis prior to measuring WBV exposures to ensure that all tasks are measured and that adequate cycles are measured to obtain a reliable indication of the vibration emission.

Newell, Geraldine S.; Mansfield, Neil J.; Notini, Luca

2006-12-01

180

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

181

Accelerating machines: a review  

Microsoft Academic Search

This paper presents an overview of accelerating machines. We begin by exploring the history of the accelerating machine model and the potential power that it provides. We look at a number of computations that could be performed with an accelerating machine, and review various possible implementation methods that have been proposed. Finally, we expose the limitations of accelerating machines and

Robert Fraser; Selim G. Akl

2008-01-01

182

Enabling flexibility on a dual head placement machine by optimizing platform-tray-feeder picking operations  

Microsoft Academic Search

The typical circuit card assembly line includes one or more dual head placement machines (DHPMs), which are capable of highly\\u000a accurate placement and promise the flexibility to assemble a broad variety of circuit card types, each in minimal time. Each\\u000a DHPM stages components for picking from feeder racks and platform tray feeders (PTFs), which are well suited for components\\u000a that

Wilbert E. Wilhelm; Xiaoyan Zhu

2009-01-01

183

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

184

Electrical, mechanical, and hydraulic system improvement study for roof bolter operations. Volume I. Technical information and conclusions. Final technical report as of November 30, 1980  

Microsoft Academic Search

Roof bolters as a generic machine type used in continuous coal miner sections were investigated to determine the effect of machine failures and downtime on productivity, pinpoint the causes of machine failures and downtime, and develop the possible design and operational changes required to reduce machine failures and downtime and increase section productivity. In the course of this program it

W. N. Patterson; F. Orona

1980-01-01

185

Reduced-gas-pressure operation of sludge digesters. Final report  

SciTech Connect

The report describes a laboratory research project that examined the effect of reduced gas pressure, or partial vacuum, operation on anaerobic sludge digesters. The focus of the project was the investigation of bench-scale anaerobic reactors that were operated at 0.5, 0.75, 0.83, and 1 atmosphere headspace pressure and fed daily for four different loading conditions at solids retention times of 15 and 25 days. The reduced headspace reactors generally had a higher level of digester performance, as measured by volatile solids destruction and methane generation, than the control reactor. Cumulative data for the 334-day study indicates that digester operation at 0.75 atmosphere provided near optimum methane production and volatile solids destruction. An engineering evaluation of the existing digesters at the Department of Drainage and Sanitation's Metropolitan Syracuse Wastewater Treatment plant concluded that it would be economical to retrofit the existing digesters to operate under partial vacuum conditions.

Not Available

1989-05-01

186

Vehicle fuel consumption. Final report on test operations procedure  

SciTech Connect

Describes the tests to measure and evaluate wheeled and tracked vehicle fuel consumption under both controlled and typical service operating conditions. Applies to land and amphibious vehicles with internal combustion engines.

Not Available

1980-02-12

187

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

188

Development of an operation skill-training simulator for double-front work machine  

Microsoft Academic Search

This paper reports a newly developed simulator for operation skill training in Double-Front Construction Machinery (DFCM) that allows novices to virtually experience tough operations repeatedly using DFCM under various conditions, including dangerous congestion. First, we selected several situations targeted where the DFCM needs to be used to provide a high level of operation skills: sorted dismantling for recycling and reusing

Mitsuhiro Kamezaki; Hiroyasu Iwata; Shigeki Sugano

2008-01-01

189

Modified Brokk Demolition Machine with Remote Operator Console. Innovative Technology Summary Report  

SciTech Connect

The Low-Cost D and D System modifies a commercially available BROKK demolition system for remote viewing and long tether remote operation that provides a portable facility camera pod and interfaces with the Compact Remote Operator Console (TMS Tech ID 2180) to extend the applicability of the BROKK system to projects that require removal of the operator from the work area due to exposure to radiological, chemical, or industrial hazards. The modified BROKK has been integrated with the Compact Remote Operator Console to provide a true remotely operated low-cost D and D system applicable to a wide range of small D and D demolition tasks across the DOE complex.

None

2001-09-01

190

Laser based machine for die and prototype manufacturing: Final report, February 10, 1987--August 9, 1988  

SciTech Connect

In his application to the Bureau of Energy Related Inventions Michael Feygin proposed a feasibility study for a new process aiming at completely automated manufacturing of complex and hard to manufacture parts. The technique invented by Michael Feygin is called Laminated Object Manufacturing. It utilizes thin cross-sections of a part, cut by a laser based contouring machine. The part is created by successive deposition and bonding of layers of material. Part geometry is specified by successive cross-sectioning of 3-dimensional images created with a CAD program on a graphic workstation. The Laminated Object Manufacturing system can be thought of as a ''three-dimensional-printer'' which incrementally stacks two-dimensional images. The ultimate hard copy is produced, the object itself. The laser system is basically an assembly of known technologies: laser cutting, CAD and CAM, brazing or adhesion bonding, and computer controlled mechanical handling of components. It offers a revolutionary new way to produce 3-dimensional objects such as molds, dies, prototypes, models and other items produced in small batches. The research performed on the grant created a foundation for building a successful prototype of a LOM system. The prototype has been built in 1988 using funds of the Illinois Innovation Fund, a state agency independent from DOE. 8 figs., 1 tab.

Feygin, M.

1989-02-05

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

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

193

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

194

Operation Ivy. Joint Task Force 132, 1952. Final report  

SciTech Connect

This report covers the activities of the Joint Task Force 132 in Operation Ivy, in 1952 at Eniwetok Atoll. Shots Mike and King were detonated in conjunction with eleven experimental programs. This report describes the device, weapon, and experimental programs, giving as many preliminary conclusions as can be drawn from early analysis of the data.

Not Available

1985-09-01

195

EUV spectroscopy of plasmas created in the final anode-cathode gap of the Z-Machine high-current pulsed generator (SNL)  

Microsoft Academic Search

The effect of short-circuit across the final anode-cathode gap of powerful pulsed current generators could hamper efficient power delivery to the Z-pinch plasma. To study this effect, a novel EUV diagnostics of plasmas created in the final section of the transmission line (the anode-cathode gap near the main load) of the Z-Machine high-current generator (Sandia National Laboratories, United States) was

A. P. Shevelko; D. E. Bliss; E. D. Kazakov; M. G. Mazarakis; J. S. McGurn; L. V. Knight; K. W. Struve; I. Yu. Tolstikhina

2008-01-01

196

Machine Shop Lathes.  

ERIC Educational Resources Information Center

This guide, the second in a series of five machine shop curriculum manuals, was designed for use in machine shop courses in Oklahoma. The purpose of the manual is to equip students with basic knowledge and skills that will enable them to enter the machine trade at the machine-operator level. The curriculum is designed so that it can be used in…

Dunn, James

197

The Designed Operation of the Machine Control System on HL-2A Tokamak  

NASA Astrophysics Data System (ADS)

The Ethernet and field-bus communications are used in the machine control system (MCS) of HL-2A. The control net, with a programmable logic controller (PLC) as its logic control master, an engineering control management station as its net server, and a timing control PC connected to a number of terminals, flexibly and freely transfers information among the nodes on it with the Ethernet transmission techniques. The PLC masters the field bus, which carries small pieces of information between PLC and the field sites reliably and quickly. The control net is connected into the data net, where Internet access and sharing of more experimental data are enabled. The communication in the MCS guarantees the digitalization, automation and centralization. Also provided are a satisfactory degree of safety, reliability, stability, expandability and flexibility for maintenance.

Li, Qiang; Fan, Mingjie; Song, Xianming; Wang, Minghong; Tang, Fangqun; Luo, Cuiwen; Yuan, Baoshan

2005-10-01

198

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

199

ExecSpec: Visually Designing and Operating a Finite State Machine-based Spacecraft Autonomy System  

Microsoft Academic Search

The increasing complexity of modern spacecraft autonomy systems makes it difficult for engineers, mission operators, and domain experts to completely understand them during design and development and to analyze autonomy behavior during testing and flight operations. To address these problems, The Johns Hopkins University Applied Physics Lab is exploring a new visual programming approach to autonomy development based on a

Russell Turner; Sharjeel Hooda; John Gersh; George Cancro

200

Classification of Petroleum Well Drilling Operations Using Support Vector Machine (SVM)  

Microsoft Academic Search

During the petroleum well drilling operation many mechanical and hydraulic parameters are monitored by an instrumentation system installed in the rig called a mud-logging system. These sensors, distributed in the rig, monitor different operation parameters such as weight on the hook and drillstring rotation. These measurements are known as mud-logging records and allow the online following of all the drilling

Adriane Beatriz De Souza Serapião; Rogerio M. Tavares; José Ricardo Pelaquim Mendes; Ivan Rizzo Guilherme

2006-01-01

201

Using Microcomputers in Vocational Education to Teach Needed Skills in Machine Shop and Related Occupations. Final Report.  

ERIC Educational Resources Information Center

A project was undertaken to identify machine shop occupations requiring workers to use computers, identify the computer skills needed to perform machine shop tasks, and determine which software products are currently being used in machine shop programs. A search of the Dictionary of Occupational Titles revealed that computer skills will become…

Mercer County Schools, Princeton, WV.

202

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.

203

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

204

Using a Hypervisor to Migrate Running Operating Systems to Secure Virtual Machines  

Microsoft Academic Search

We propose HyperShield, which is a hypervisor that can be inserted into and removed from a running operating system, for improving security. While many existing security-oriented hypervisors require modifying or rebooting an overlying operating system, HyperShield does not require this. HyperShield is intended to be a general framework for various security mechanisms. The current implementation provides two mechanisms for preventing

Tsutomu Nomoto; Yoshihiro Oyama; Hideki Eiraku; Takahiro Shinagawa; Kazuhiko Kato

2010-01-01

205

Coal transportation efficiency program: small mine operations. Final report  

SciTech Connect

This report presents the results of a comprehensive two-year examination of coal distribution in Appalachia. The study was performed to determine if there are opportunities to improve the market position and profitability of smaller coal producers by modifying their distribution systems. In the first phase of the study, an in-depth evaluation of the production, transportation, and market characteristics of small mines and producers resulted in the selection of three representative study areas: Clearfield County, Pennsylvania; Harlan County, Kentucky; and Logan County, West Virginia. In the next phase, a detailed analysis was performed and a preferred distribution strategy was defined for each study area. Finally, the results of the study area analysis were used to determine their applicability to other producing areas. In addition, the implications for the nation's rail system were defined in the event that there were large-scale changes in the coal distribution system for smaller producers. The appendix to the report presents a check list for evaluating the feasibility of potential distribution options.

Not Available

1982-01-01

206

Hazardous Materials Safety and Security Technology Field Operational Test. Volume 1. Evaluation Final Report Executive Summary.  

National Technical Information Service (NTIS)

The following volume content definitions are provided to aid the reader in reviewing this detailed, multivolume effort presented as the Hazardous Materials Safety and Security Technology Field Operational Test Evaluation Final Report. Volume I: Executive ...

2004-01-01

207

Operations-Oriented Performance Measures for Freeway Management Systems: Final Report.  

National Technical Information Service (NTIS)

This report describes the second and final year activities of the project titled Using Operations-Oriented Performance Measures to Support Freeway Management Systems. Work activities included developing a prototype system architecture for testing the use ...

A. Upayokin M. L. Sattler R. E. Brydia S. P. Mattingly

2008-01-01

208

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

209

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

210

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

211

Operating years 1993 through 1995 power purchases. Final environmental assessment  

SciTech Connect

Bonneville Power Administration (BPA) is obligated to supply electric power to its contractual customers. Based on a forecast of growing customer loads and assuming Critical Period water conditions in the Columbia River Basin, BPA is planning to meet a firm energy deficit during the four operating years (OY) 1992 through 1995, i.e., August 1991 through July 1995. BPA has executed several power purchase agreements to cover the projected OY 1992 deficit. The proposed action is to extend two existing one-year power purchase agreements for an additional three years to cover the four-year Critical Period energy deficit. The extension of these two one-year power purchase agreements would: (1) increase BPA`s firm energy load-carrying capability; (2) allow BPA to meet its firm energy contractual commitments over the remaining three years of the four-year Critical Period from August 1, 1992, to July 31, 1995; (3) provide flexibility for BPA`s use of hydroelectric resources over the Critical Period; and (4) increase system reliability. Under Critical Period water conditions, absent the proposed action, projected loads would exceed the capability of the Federal power system to serve those loads. The purpose of BPA`s proposed action is to assure consistency with its statutory responsibilities, including those found in the Pacific Northwest Electric Power Planning and Conservation Act (Northwest Power Act).

Not Available

1991-12-01

212

Operating Years 1993 Through 1995 Power Purchases : Final Environmental Assessment.  

SciTech Connect

Bonneville Power Administration (BPA) is obligated to supply electric power to its contractual customers. Based on a forecast of growing customer loads and assuming Critical Period water conditions in the Columbia River Basin, BPA is planning to meet a firm energy deficit during the four operating years (OY) 1992 through 1995, i.e., August 1991 through July 1995. BPA has executed several power purchase agreements to cover the projected OY 1992 deficit. The proposed action is to extend two existing one-year power purchase agreements for an additional three years to cover the four-year Critical Period energy deficit. The extension of these two one-year power purchase agreements would: (1) increase BPA's firm energy load-carrying capability; (2) allow BPA to meet its firm energy contractual commitments over the remaining three years of the four-year Critical Period from August 1, 1992, to July 31, 1995; (3) provide flexibility for BPA's use of hydroelectric resources over the Critical Period; and (4) increase system reliability. Under Critical Period water conditions, absent the proposed action, projected loads would exceed the capability of the Federal power system to serve those loads. The purpose of BPA's proposed action is to assure consistency with its statutory responsibilities, including those found in the Pacific Northwest Electric Power Planning and Conservation Act (Northwest Power Act).

United States. Bonneville Power Administration.

1991-12-01

213

Operation and maintenance manual for electrostatic precipitators. Final report  

SciTech Connect

This manual focuses on the operation and maintenance (O/M) of typical electrostatic precipitators (ESPs). It summarizes available information on theory and design in sufficient detail to provide a basic background O/M portions of the manual. Although O/M-related air pollution problems cannot be completely eliminated, they can be minimized by the conscientious application of a well-planned O/M program. The causes of such problems often vary widely, and their effects on deteriorating performance may be direct, indirect, or synergistic. Process, particle, mechanical, environmental, and gas-flow-dynamics factors dictate that O/M programs and troubleshooting be approached from a total system or process/plantwide viewpoint. The variable nature of these factors also requires that O/M programs be individualized and specifically tailored to the needs of the process and installation served. Effective O/M also affects equipment reliability, on-line availability, continuing regulatory compliance, and regulatory agency/source relations.

Szabo, M.F.; Hawks, R.D.; Sanders, G.L.; Hall, F.D.

1985-01-01

214

Jackson Bluff Hydroelectric Project: Final operation and maintenance report  

SciTech Connect

The Jackson Bluff Hydroelectric Project is the first hydroelectric plant developed by the City of Tallahassee. The project is located on the Ochlockonee River approximately 66 miles upstream from its mouth at the Gulf of Mexico and approximately 20 miles west-southwest of the city of Tallahassee, Florida. The original hydroelectric generating facility with a total capacity of 8800 kw was retired in 1970. In the late seventies, the Department of Energy (DOE) classified the site as potential site for the Hydroelectric Demonstration Project. The City of Tallahassee submitted a proposal to DOE to reinstall generating equipment and operate the facility. The proposal was approved and after a feasibility study, the City was granted $1.75 million by DOE to meet approximately 15/percent/ of the total project cost. The existing powerhouse and intake serves to utilize three vertical-shaft turbines, two fixed blade and one adjustable blade propeller (Kaplan). The two fixed blade turbines drive a 4440 kw synchronous generator each and the adjustable blade propeller drives a 3438 kw synchronous generator. The plant design flow is 5200 cubic feet per second and the rated net head for the turbines is 32 feet. The runner diameters are 125.8 inches (fixed blade) and 104.7 inches (adjustable blade). In early 1983, with the proposal approved and the feasibility study completed, the City of Tallahassee took over the responsibility of the project. The rehabilitation work started in July 1983, and was completed in early 1986.

Hinton, J.; deMontmollin, F.

1988-03-01

215

Engine Lathe Operator. Instructor's Guide. Part of Single-Tool Skills Program Series. Machine Industries Occupations.  

ERIC Educational Resources Information Center

Expected to help meet the need for trained operators in metalworking and suitable for use in the adult education programs of school districts, in manpower development and training programs, and in secondary schools, this guide consists of four sections: Introduction, General Job Content, Shop Projects, and Drawings for the Projects. General Job…

New York State Education Dept., Albany. Bureau of Secondary Curriculum Development.

216

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 ...

217

Engine Lathe Operator. Instructor's Guide. Part of Single-Tool Skills Program Series. Machine Industries Occupations.  

ERIC Educational Resources Information Center

|Expected to help meet the need for trained operators in metalworking and suitable for use in the adult education programs of school districts, in manpower development and training programs, and in secondary schools, this guide consists of four sections: Introduction, General Job Content, Shop Projects, and Drawings for the Projects. General Job…

New York State Education Dept., Albany. Bureau of Secondary Curriculum Development.

218

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

ERIC Educational Resources Information Center

|This course, the second one to be published in what is expected to be a series of instructor's guides in the Single-Tool Skills Program, is expected to help meet the need for trained operators in metalworking and is designed for use in the adult education programs of school districts, in Manpower Development and Training Programs, and in…

New York State Education Dept., Albany. Bureau of Secondary Curriculum Development.

219

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

ERIC Educational Resources Information Center

This course, the second one to be published in what is expected to be a series of instructor's guides in the Single-Tool Skills Program, is expected to help meet the need for trained operators in metalworking and is designed for use in the adult education programs of school districts, in Manpower Development and Training Programs, and in secondary…

New York State Education Dept., Albany. Bureau of Secondary Curriculum Development.

220

Development and Operation of a Database Machine for Online Access and Update of a Large Database.  

ERIC Educational Resources Information Center

|Reviews the development of a fault tolerant database processor system which replaced OCLC's conventional file system. A general introduction to database management systems and the operating environment is followed by a description of the hardware selection, software processes, and system characteristics. (SW)|

Rush, James E.

1980-01-01

221

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

Code of Federal Regulations, 2013 CFR

...balers, compactors, and paper-products machines (Order 12). 570.63 Section 570...balers, compactors, and paper-products machines (Order 12). (a) Findings and declaration...following power-driven paper products machines: (i) Arm-type wire stitcher...

2013-07-01

222

Use of Latin square analysis of variance to identify sources of error in cantilever design coordinate measuring machines. Final report  

SciTech Connect

Errors in the machine geometry of a coordinate measuring machine (CMM) can affect its measurement capability and result in product misclassification. These errors can be quickly identified by applying the analysis of variance (AOV) technique to data from a Latin square three-dimensional ball plate. Fifteen single sources of error in machine geometry for a cantilever design CMM are analyzed. The results of the analysis indicate that each error source has a unique pattern in deviation from nominal in the three axes and may be identified by the proper interpretation of the AOV. The methodology developed in this study has been applied to data from a cantilever design CMM. The analysis resulted in correct identification of error sources in the machine geometry. Rapid identification and correction of errors in machine geometry increases machine productivity.

Jones, L.L.

1981-10-01

223

Use of the hand-held dental X-ray machine during joint operation, NATO exercise Display Determination-92.  

PubMed

The hand-held dental X-ray machine is a 30-pound, battery-powered X-ray machine capable of use in military medicine, humanitarian missions, and training exercises. The machine was developed for dental radiology, but with the attachment of a medical collimator, the equipment can also be used for medical exams. In 1992, the machine was tested under field conditions in a NATO joint exercise in Bolayir, Turkey. The hand-held dental X-ray machine was found easier to use than the currently deployed Siemens dental X-ray unit and than produced radiographs of equal quality. PMID:9271914

Coy, J; Vandre, R H; Davidson, W R

1997-08-01

224

Method and device for operating an internal-combustion machine with a flywheel coupled thereto  

SciTech Connect

Method of operating an internal-combustion engine which is stoppable in accordance with specific conditions and stratable by a fly wheel disengageable from the internal-combustion engine by a clutch and re-engageable thereby when power is required, which includes bringing a friction wheel of a starter motor into engagement with the flywheel, when the flywheel is uncoupled from the internal-combustion engine, so as to accelerate the flywheel to a predetermined speed for starting up the internal-combustion engine, and thereafter engaging the clutch.

Kohlhage, E.H.

1982-03-02

225

Combining programs and state machines  

Microsoft Academic Search

State machines consume and process actions complementary to programs issuing actions. State machines maintain a state and reply with a boolean response to each action in their interface. As state machines offer a service to programs, their interface is also called a service interface. State machines can be combined with several natural operators, thus giving rise to a state machine

Jan A. Bergstra; Alban Ponse

2002-01-01

226

Operant conditioning of a multiple degree-of-freedom brain-machine interface in a primate model of amputation.  

PubMed

Operant conditioning with biofeedback has been shown to be an effective method to modify neural activity to generate goal-directed actions in a brain-machine interface. It is particularly useful when neural activity cannot be mathematically mapped to motor actions of the actual body such as in the case of amputation. Here, we implement an operant conditioning approach with visual feedback in which an amputated monkey is trained to control a multiple degree-of-freedom robot to perform a reach-to-grasp behavior. A key innovation is that each controlled dimension represents a behaviorally relevant synergy among a set of joint degrees-of-freedom. We present a number of behavioral metrics by which to assess improvements in BMI control with exposure to the system. The use of non-human primates with chronic amputation is arguably the most clinically-relevant model of human amputation that could have direct implications for developing a neural prosthesis to treat humans with missing upper limbs. PMID:24109684

Balasubramanian, Karthikeyan; Southerland, Joshua; Vaidya, Mukta; Qian, Kai; Eleryan, Ahmed; Fagg, Andrew H; Sluzky, Marc; Oweiss, Karim; Hatsopoulos, Nicholas

2013-07-01

227

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

228

Addition Machines.  

National Technical Information Service (NTIS)

An addition machine is a computing device with a finite number of registers, limited to the following six types of operations: input to register x; copy register y to register x; add register y to register x; subtract register y from register x; compare r...

R. W. Floyd D. E. Knuth

1989-01-01

229

EUV spectroscopy of plasmas created in the final anode-cathode gap of the Z-Machine high-current pulsed generator (SNL)  

Microsoft Academic Search

The effect of short-circuit across the final anode-cathode gap of powerful pulsed current generators could hamper efficient\\u000a power delivery to the Z-pinch plasma. To study this effect, a novel EUV diagnostics of plasmas created in the final section\\u000a of the transmission line (the anode-cathode gap near the main load) of the Z-Machine high-current generator (Sandia National\\u000a Laboratories, United States) was

A. P. Shevelko; D. E. Bliss; E. D. Kazakov; M. G. Mazarakis; J. S. McGurn; L. V. Knight; K. W. Struve; I. Yu. Tolstikhina

2008-01-01

230

Sensory feedback program. Final report  

Microsoft Academic Search

This program determined the feasibility of using sensory force feedback on a remote controlled continuous miner to improve operator performance, identified parameters to be sensed and relayed to the operator, and developed a prototype control system for field evaluation. However, due to some unforeseen problems involving machine access by participating mine operators the final phase of the program was changed

Fox

1982-01-01

231

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.

232

Haspert Oil-Shale Mining System. Final Report on Design Work of a Prototype Oil Shale Mining Machine.  

National Technical Information Service (NTIS)

This volume treats the complete preliminary design of the pilot machine, and the pertinent, unique hardware requirements; presents a drawing data log (reduced copies of pertinent design drawings); and presents a nomenclature, a numerical drawing designati...

J. C. Haspert

1981-01-01

233

"Master" neurons induced by operant conditioning in rat motor cortex during a brain-machine interface task.  

PubMed

Operant control of a prosthesis by neuronal cortical activity is one of the successful strategies for implementing brain-machine interfaces (BMI), by which the subject learns to exert a volitional control of goal-directed movements. However, it remains unknown if the induced brain circuit reorganization affects preferentially the conditioned neurons whose activity controlled the BMI actuator during training. Here, multiple extracellular single-units were recorded simultaneously in the motor cortex of head-fixed behaving rats. The firing rate of a single neuron was used to control the position of a one-dimensional actuator. Each time the firing rate crossed a predefined threshold, a water bottle moved toward the rat, until the cumulative displacement of the bottle allowed the animal to drink. After a learning period, most (88%) conditioned neurons raised their activity during the trials, such that the time to reward decreased across sessions: the conditioned neuron fired strongly, reliably and swiftly after trial onset, although no explicit instruction in the learning rule imposed a fast neuronal response. Moreover, the conditioned neuron fired significantly earlier and more strongly than nonconditioned neighboring neurons. During the first training sessions, an increase in firing rate variability was seen only for the highly conditionable neurons. This variability then decreased while the conditioning effect increased. These findings suggest that modifications during training target preferentially the neuron chosen to control the BMI, which acts then as a "master" neuron, leading in time the reconfiguration of activity in the local cortical network. PMID:23658171

Arduin, Pierre-Jean; Frégnac, Yves; Shulz, Daniel E; Ego-Stengel, Valérie

2013-05-01

234

Maintenance and operation of a small wind generator in the marine environment. Final report  

SciTech Connect

This report discusses the maintenance and operation of a wind-turbine generator that has been undergoing tests as a source of energy for remote Coast Guard lighthouses. The report documents both the effects of operating the wind machine in the marine environment and the maintenance that it required. Design parameters and performance records of the generator are also evaluated. The HR2 is a horizontal-axis, upwind-oriented, three-bladed wind machine. It is equipped with a direct-drive system that allows the kinetic force captured by the propeller to be converted directly into rotational force driving the main shaft. The HR2 alternator and blade/hub system are allowed to tilt out of a near-vertical plane about a shaft and bearing mechanism. The VARCS is a torsion spring- and hinge-mechanism that acts against the lifting dynamics of the spinning blades. As high winds or gusts tilt the alternator about the hinge, the VARCS's spring opposes this force and regulates the blades angle of attack into the wind; the propeller's RPM drop when tilted because of the feathering action. If the wind subsides, the force of the VARCS spring drives the alternator assembly down and presents the blades back into the wind.

Heerlein, W.

1986-07-01

235

BASIC CONDITIONS OF PROPER PART SURFACE GENERATING WHILE MACHINING ON CONVENTIONAL MACHINE TOOL  

Microsoft Academic Search

Machining of the part surface on the conventional machine tool sometimes presents geometrical problems that are not envisioned in classical geometry of surfaces. This paper presents definition and illustration of the basic conditions of proper part surface generating while machining on conventional machine tool, i.e. on turning machine tool, on milling machine tool, on machine tool for gear manufacturing operations

Stepan P. Radzevich

1999-01-01

236

Operations analysis of the unscheduled summer machine opening of the Tokamak Fusion Test Reactor (TFTR) at the Princeton Plasma Physics Laboratory  

SciTech Connect

During experimental operation, a problem developed with the mechanical integrity of the TFTR surface pumping system neutralizer plates that required a vacuum vessel entry for repairs. This problem, coupled with several less significant machine internal problems that had been developing, forced the decision to make an unscheduled vacuum vessel entry. An extended machine outage at that time would have had a severe impact on the experimental schedule. Therefore, the goal was to make repairs and return the vacuum vessel to a clean condition as quickly as possible. The total time required between the end of regularly scheduled activity and restoration of the machine capability to routinely obtain 1 MA disruption-free plasma was 12 days.

Viola, M.E.; McCann, J.

1985-07-01

237

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

238

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

239

Electron Beam Welding of 6061-T6 Covers to A356-T6 Machined Cast Housings: Final Report.  

National Technical Information Service (NTIS)

An electron beam welding process was developed to replace the manual gas tungsten arc welding process for welding 6061-T6 aluminum covers to the A356-T6 cast aluminum machined housing for a Filter Pack Assembly. Design change recommendations must be incor...

G. P. Miller

1988-01-01

240

Electron beam welding of 6061-T6 covers to A356-T6 machined cast housings: Final report  

SciTech Connect

An electron beam welding process was developed to replace the manual gas tungsten arc welding process for welding 6061-T6 aluminum covers to the A356-T6 cast aluminum machined housing for a Filter Pack Assembly. Design change recommendations must be incorporated prior to implementation of the electron beam welding process. 3 refs., 9 figs., 5 tabs.

Miller, G.P.

1988-03-01

241

Very-high-speed holographic message routing for parallel machines. Final report, 1 Sep 88-31 Aug 90  

SciTech Connect

An important problem in massively parallel processing machines is the communication bottleneck. For example, in the Connection Machine, a 65,536 SIMD parallel processing message routing is one thousand times slower than the instruction time of an individual processor. This is, in part, due to contention problems and in part to the necessity for global control of the interconnection network. Our approach to solve this problem is to implement a fully-parallel, high-speed message router, using locally-controlled spatial light modulators and volume holograms. Johnson and Reif devised an efficient electro-optical message routing system. We implemented a small prototype holographic router for demonstration of basic principals. The routing system uses a volume hologram to do message switching. It uses optimal O(n log(n)) number of switches, constant time, and optimal volume. This work can be applied to do very high speed message routing for massively parallel machines such as required by the Connection Machine,

Reif, J.H.

1990-09-01

242

Continuous Slipformed-Concrete Lining System Compatible with the Blind Shaft Boring Machine. Final Technical Report as of June 1978.  

National Technical Information Service (NTIS)

This report describes the design of a continuous shaft lining system and a continuously extendible service line extension system to be utilized in conjunction with the Blind Shaft Boring Machine. The objective of this design program is to allow the BSB to...

R. E. Wallhagen

1978-01-01

243

Impact of Winding Layer Number and Slot\\/Pole Combination on AC Armature Losses of Synchronous Surface PM Machines Designed for Wide Constant-Power Speed Range Operation  

Microsoft Academic Search

This paper examines the impact of the winding layer number (single- and double-layer), and magnet type (sintered and bonded), as well as slot\\/pole combinations on AC stator losses in surface permanent magnet (SPM) synchronous machines equipped with fractional-slot concentrated windings that are designed for wide speed ranges of constant-power operation. It is shown that the use of bonded magnets instead

Patel B. Reddy; T. M. Jahns; Ayman M. El-Refaie

2008-01-01

244

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

245

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

246

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

247

Voting machine  

US Patent & Trademark Office Database

A compact, versatile voting machine is disclosed having adaptability for use with various vote registering devices such as tally counters and punch card apparatus. The voting machine includes a selector mechanism having a series of parallel columns housing voter operated key slides. A vertical interlock mechanism includes ball housing blocks which are alternately disposed between the key slides and house displaceable interlock balls in a tool line. The cam blocks are adjustable to limit the effective length of the tool line to establish groupings of candidates from which a single selection can be made. A magazine at the top of each column is adjustable to permit multiple selections from a grouping. Actuation of a key cams the interlock balls into the tool line, and when a predetermined number of voter selections have been made no additional keys can be actuated as they are blocked by the tool line. A row of adjacent horizontal keys can also be interlocked to established selection groups as typically found on a general election ballot. A bar is moveable to horizontally interlock adjacent columns by introducing locking pins into a position to be cammed by actuation of a key. A drive mechanism associated with each column permits the voter to vote straight party and clears the machine to ready it for another voter. The drive mechanism includes cam controlled clutches that operate four-bar linkage elements to depress or return the key slides. A judge controlled mechanism locks the machine between voters. For various voting requirements, judge operated cam arrangements are cooperable with the horizontal locking pins and the four-bar linkage to selectively lock out partial or entire columns or rows of key slides. The key slides are provided with a voter viewable button that registers a visible, luminescent X when a key is voted.

O'Neal; Cothburn M. (Dallas, TX); Mayo; Alfred M. (Richardson, TX); Childs, deceased; George William (LATE OF DTX, TX)

1976-01-27

248

Performance evaluation of Automatic Extraction System. Volume IV. Recommended operating, maintenance, and training plans. Final technical report  

SciTech Connect

Since the AES is a different and more sochisticated machine, it became apparent during the in-mine trial that more than on-the-job training (OJT) is desirable for the operators. The AES is unique in that it should remain in the face for long periods rather than be moved often from the face to face. In addition, the operator should learn to trust the ACS in order to be more aware of the hazards in the face area. More training is one way to help increase operator and machine efficiency and safety consciousness. The lack of formal, organized, scheduled, non-productive-mode training of the AES operators appeared to affect the performance of the AES during mining, tramming, maneuvering, and bolting. Therefore, before the operator and bolters do their jobs and the mechanics maintain the AES on a regular basis in a production-mode, they should attend classes, including: (1) formal above ground classroom training, (2) non-productive-mode underground training, and (3) productive-mode OJT. The training department should have the authority and resources to train workers beforehand, and also whenever subsequent instruction is needed. This plan includes only those areas peculiar to the AES. It is assumed that mature, competent individuals (operators and bolters) have already been trained to use similar machines. If this is not the case, the training will require significantly more time.

Frantz, R.L.; King, R.H.; Bartsch, D.L.

1980-07-01

249

Ceramic-composite cutting tool insert for increased productivity, ultra high-speed machining. Final report on Phase 1  

SciTech Connect

Eleven different ceramic composites with different compositions were investigated. The thermodynamic compatibility, thermal shock factor, hardness, and mechanical properties of these composites were determined. Two composites, sol-gel derived A12O3-ZrO2-SiCw and pressureless sintered ZrO2-TiC composites, were determined to possess the optimum properties for cutting tool applications. The ZrO2-TiC composites, which were prepared and consolidated by novel processing, exhibited exceptional high temperature properties. Machining tests of high speed steel were performed with these composites. The SiC whisker reinforced composites and the ZrO2-TiC composites had a significantly improved volume of metal removal over the commercial cutting tools for machining steel. The developed ZrO2-TiC composites have the advantage, in addition to superior cutting performance, of being produced via a cost effective method (pressureless sintering).

Withers, J.C.

1989-07-01

250

Brain-machine interfaces in rat motor cortex: neuronal operant conditioning to perform a sensory detection task  

Microsoft Academic Search

A chief concern in the pursuit of controlling a neuroprosthetic device using direct brain signals is the question of how many bits of information are achievable through a direct brain-machine interface (BMI) via implantable microelectrode devices. This experiment begins to address this issue with implementation of a simple, software based decoding algorithm that allows the brain to adapt to the

R. J. Vetter; K. J. Otto; T. C. Marzullo; D. R. Kipke

2003-01-01

251

Application of object-oriented and qualitative modelling methodologies in the operation and control of a mobile structural press machine  

Microsoft Academic Search

Today, the use of computer-base d systems for industrial process control is growing rapidly. The growing demand for efficient performance and flexibility in industrial systems makes control algorithm design an increasingly complex process. In this research work we address the problem of determining and establishing the most effective control of linear and concurrent processes in an industrial mobile press machine

GEORGE K. ADAM

252

Final rule issued by U. S. Department of Transportation (DOT) on pipeline operations  

SciTech Connect

On 7/16/79, DOT published a final rule indicating some required features in the liquid pipeline operating procedures that the pipeline operators must prepare. In response to six petitions for reconsideration of the earlier draft, DOT will now: permit the use of fail-safe equipment as an alternative to the monitoring of pipeline operations from attended locations; delineate more clearly the facilities for which carriers must define an immediate response procedure in the event of malfunction; and permit the conversion of certain pipelines to service that could not be converted under the original rule. In response to API's argument that the scope of the rule is vague and the term ''hazardous liquid pipelines'' is ambiguous, applying possibly to all liquid pipelines or to highly volatile liquid pipelines, DOT's Materials Transportation Bureau said that each rule indicates clearly whether it refers to all pipelines or only to those carrying volatile liquids.

Not Available

1980-02-01

253

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

254

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

255

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

256

29 CFR 1917.151 - Machine guarding.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 2013-07-01 false Machine guarding. 1917.151 Section 1917...Operations and Equipment § 1917.151 Machine guarding. (a) Definition...b) General. (1) Danger zones on machines and equipment used by employees...

2013-07-01

257

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

258

EUV spectroscopy of low-temperature plasmas created in the final anode-cathode GAP of the Z-machine  

Microsoft Academic Search

The effect of a short circuit across the final anode-cathode (A-K) gap of the powerful Z-Accelerator could hamper effective power delivery to z-pinch plasmas. The objective of this work is to develop an extreme ultraviolet (EUV) diagnostic technique for diagnosis of the low-temperature plasmas created in the final transmission line (A-K gap near the load) of the Z-Accelerator at the

A. P. Shevelko; D. E. Bliss; M. G. Mazarakis; J. S. McGurn; K. W. Struve; E. D. Kazakov; I. Y. Tolstikhina

2007-01-01

259

Introspective Machine.  

National Technical Information Service (NTIS)

An introspective machine, capable of passing judgment on its own deductive performances, is modelled and analyzed. First, the class of ideal machines which is provided with unlimited resources is studied. Since ideal introspective machines are usually unf...

G. A. W. Vreeswijk

1989-01-01

260

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

261

Machine vision  

SciTech Connect

To keep up with the speeds of modern production lines, most machine vision applications require very powerful computers (often parallel-processing machines), which process millions of points of data in real time. The human brain performs approximately 100 billion logical floating-point operations each second. That is 400 times the speed of a Cray-1 supercomputer. The right software must be developed for parallel-processing computers. The NSF has awarded Rensselaer Polytechnic Institute (Troy, N.Y.) a $2 million grant for parallel- and image-processing software research. Over the last 15 years, Rensselaer has been conducting image-processing research, including work with high-definition TV (HDTV) and image coding and understanding. A similar NSF grant has been awarded to Michigan State University (East Lansing, Mich.) Neural networks are supposed to emulate human learning patterns. These networks and their hardware implementations (neurocomputers) show a great deal of promise for machine vision systems because they allow the systems to understand the use sensory data input more effectively. Neurocomputers excel at pattern-recognition tasks when input data are fuzzy or the vision algorithm is not optimal and is difficult to ascertain.

Horn, D.

1989-06-01

262

Machining of uranium and uranium alloys  

SciTech Connect

Uranium and uranium alloys can be readily machined by conventional methods in the standard machine shop when proper safety and operating techniques are used. Material properties that affect machining processes and recommended machining parameters are discussed. Safety procedures and precautions necessary in machining uranium and uranium alloys are also covered. 30 figures.

Morris, T.O.

1981-12-14

263

Evaluation of the potential health hazards associated with the machining of carbon-fiber composites. Final report  

Microsoft Academic Search

Industrial-hygiene surveys were conducted to assess personnel exposures to carbon fibers and carbon\\/epoxy composite dust during carbon-composite airframe sanding operations. The operation is currently performed every two to three weeks for eight hours at a time. The nature and frequency of operation performance is expected to change as more composite aircraft are put into service. The health implications of carbon-composite

Zustra

1987-01-01

264

EUV spectroscopy of plasmas created in the final anode-cathode gap of the Z-Machine high-current pulsed generator (SNL)  

SciTech Connect

The effect of short-circuit across the final anode-cathode gap of powerful pulsed current generators could hamper efficient power delivery to the Z-pinch plasma. To study this effect, a novel EUV diagnostics of plasmas created in the final section of the transmission line (the anode-cathode gap near the main load) of the Z-Machine high-current generator (Sandia National Laboratories, United States) was developed. The work included developing spectroscopic instruments, theoretical and experimental studies of EUV spectra of iron ions in well-diagnosed laser-produced plasmas, and a comparison of these spectra with those of plasmas created in the final anode-cathode gap of the transmission line. The EUV spectra of highly charged Fe ions in the spectral range {lambda} {approx} 20-800 A were investigated. In experiments performed at Sandia National Laboratories, spectra of FeXIII-FeXVII ions were observed. A comparison of the measured and calculated spectra shows that the electron plasma temperature in the anode-cathode gap is T{sub e} {approx} 200 eV.

Shevelko, A. P. [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation); Bliss, D. E. [Sandia National Laboratories (United States); Kazakov, E. D. [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation); Mazarakis, M. G.; McGurn, J. S. [Sandia National Laboratories (United States); Knight, L. V. [Brigham Young University (United States); Struve, K. W. [Sandia National Laboratories (United States); Tolstikhina, I. Yu. [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation); Weeks, T. J. [Brigham Young University (United States)

2008-11-15

265

Machine Shop Grinding Machines.  

ERIC Educational Resources Information Center

|This curriculum manual is one in a series of machine shop curriculum manuals intended for use in full-time secondary and postsecondary classes, as well as part-time adult classes. The curriculum can also be adapted to open-entry, open-exit programs. Its purpose is to equip students with basic knowledge and skills that will enable them to enter…

Dunn, James

266

Machine Shop Grinding Machines.  

ERIC Educational Resources Information Center

This curriculum manual is one in a series of machine shop curriculum manuals intended for use in full-time secondary and postsecondary classes, as well as part-time adult classes. The curriculum can also be adapted to open-entry, open-exit programs. Its purpose is to equip students with basic knowledge and skills that will enable them to enter the…

Dunn, James

267

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

Code of Federal Regulations, 2010 CFR

...Detrimental to Their Health or Well-Being § 570.63 Occupations...National Standard for Equipment Technology and Operations for Wastes and...National Standard for Equipment Technology and Operations for Wastes...National Standard for Equipment Technology and Operations for Wastes...

2010-07-01

268

Interaction with Machine Improvisation  

NASA Astrophysics Data System (ADS)

We describe two multi-agent architectures for an improvisation oriented musician-machine interaction systems that learn in real time from human performers. The improvisation kernel is based on sequence modeling and statistical learning. We present two frameworks of interaction with this kernel. In the first, the stylistic interaction is guided by a human operator in front of an interactive computer environment. In the second framework, the stylistic interaction is delegated to machine intelligence and therefore, knowledge propagation and decision are taken care of by the computer alone. The first framework involves a hybrid architecture using two popular composition/performance environments, Max and OpenMusic, that are put to work and communicate together, each one handling the process at a different time/memory scale. The second framework shares the same representational schemes with the first but uses an Active Learning architecture based on collaborative, competitive and memory-based learning to handle stylistic interactions. Both systems are capable of processing real-time audio/video as well as MIDI. After discussing the general cognitive background of improvisation practices, the statistical modelling tools and the concurrent agent architecture are presented. Then, an Active Learning scheme is described and considered in terms of using different improvisation regimes for improvisation planning. Finally, we provide more details about the different system implementations and describe several performances with the system.

Assayag, Gerard; Bloch, George; Cont, Arshia; Dubnov, Shlomo

269

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

270

Ohio Coal Testing and Development Facility - Construction and operation. Final report  

SciTech Connect

On June 14, 1987, the Ohio Coal Development Office (OCDO) executed a grant agreement with ICF Kaiser Engineers (ICF Kaiser) for the planning and design (Phase I) of a Demonstration Advanced Technology Coal Preparation Facility. Subsequently, on December 1, 1990, OCDO executed a grant agreement with the American Electric Power Service Corporation (AEPSC) through its subsidiary, the Ohio Power Company, for the final design and construction (Phase II), testing and operation (Phase III), and marketing and future operation (Phase IV) of the facility. These phases were subcontracted to ICF Kaiser. AEPSC co-sponsored the project and donated a site at the Central Ohio Coal Company`s Unionville Coal Preparation Plant for locating the test plant. Central Ohio Coal supplied coal handling services, waste-product disposal, and water. The Ohio Power Company provided project oversight, electric power, and the test coals. The test results from the operation of the 30 tph advanced coal cleaning plant demonstrated that combining conventional physical coal cleaning with emerging advanced physical coal cleaning technologies was a cost-effective method to reduce sulfur emissions of Ohio coals. The following is a summary of the key findings of this project.

Ferris, D.D.

1996-03-01

271

Machine Learning  

Microsoft Academic Search

Machine learning is a very active sub-field of artificial intelligence concerned with the development of computational models\\u000a of learning. Machine learning is inspired by the work in several disciplines: cognitive sciences, computer science, statistics,\\u000a computational complexity, information theory, control theory, philosophy, and biology. Simply speaking, machine learning is\\u000a learning by machine. From a computational point of view, machine learning refers

Xin Yao; Yong Liu

272

A Survey of Parallel Machine Organization and Programming  

Microsoft Academic Search

This paper is a survey of parallel machine organizations and programming. Parallelism is defined in a broad sense, on the bit level, operation level, and algorithm level. A number of abstract and practical questions are discussed. First, fast techniques for evaluating arithmetic expressions and linear recurrences are treated. Next, whole programs are discussed, and some experimental results are presented. Finally,

David J. Kuck

1977-01-01

273

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

274

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

275

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

Code of Federal Regulations, 2010 CFR

...Age or Detrimental to Their Health or Well-Being § 570.63 Occupations involved...American National Standard for Equipment Technology and Operations for Wastes and Recyclable...American National Standard for Equipment Technology and Operations for Wastes and...

2009-07-01

276

Assessment of whole body vibration levels of coal miners. Volume 1. Whole-body vibration exposure of surface-coal-mining machine operators. Open file report, November 1979-July 1984  

SciTech Connect

Field measurements utilizing a seat-pad accelerometer were made on 61 surface-coal-mining machines in order to quantify the vibration levels experienced by the operators. These data were combined with information on the statistics of the operating times of these machines in order to compare the operator's vibration exposure to the criteria of the International Standards Organization (ISO) Standard 2631, A Guide for the Evaluation of Human Exposure to Whole Body Vibration. The comparison showed that about one-half of all surface-coal-mining machine operators can be expected to be exposed to vibration exceeding the fatigue-decreased proficiency criterion, whereas only on the order of 15% would be expected to experience vibration exceeding the exposure limit. Detailed exposure statistics are presented and the implications of the results are discussed.

Remington, P.J.; Stahr, J.; Andersen, D.

1983-07-01

277

Assessment of whole-body vibration levels of coal miners. Volume 2. Whole-body vibration exposure of underground coal mining machine operators. Open File report, November 1979-July 1084  

SciTech Connect

Field measurements utilizing a seat-pad accelerometer were made on 25 underground-coal-mining machines in order to quantify the vibration levels experienced by the operators. These data were combined with information on the statistics of the operating times of these machines in order to compare the operator's vibration exposure to the criteria of the International Standards Organization (ISO) Standard 2631, A Guide for the Evaluation of Human Exposure to Whole Body Vibration. The comparison showed that about 30% to 40% of all underground-coal mining machine operators can be expected to be exposed to vibration exceeding the fatigue-decreased proficiency criterion, whereas only 10% to 15% would be expected to experience vibration exceeding the exposure limit. The primary sources of the exposure are shuttle cars and possibly scoop trams. Detailed exposure statistics are presented, and the implications of the results are discussed.

Remington, P.J.; Andersen, D.A.; Alakel, M.N.

1984-03-01

278

Implementation for Use of Variable Speed Friction Tester and Small Wheel Circular Track Wear and Polishing Machine for Pavement Skid Resistance. Part III -VST Operating Instructions, Dead Weight Method.  

National Technical Information Service (NTIS)

Included in this four part implementation work for the Small Wheel Circular Track Wear and Polishing Machine and the Variable Speed Friction Tests (VST) is a summary report, Part I; circular track plan and operating manual, Part II; VST operating instruct...

D. Gibson J. K. Whitfield T. L. Matlock W. G. Mullen

1977-01-01

279

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

280

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_.

281

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 ...

Machose, Mrs.

2007-03-10

282

State Machines  

Microsoft Academic Search

We are surrounded by real-world state machines: ballpoint pen retractor mechanisms, vending machines, washing-machine controllers, digital watches. They are a trivial but underused technology that can simplify how we implement programs that must track how they got to their current state before handling a new event. However, many programmers feel that state machines are only useful when they're developing communication

Dave Thomas; Andy Hunt

2002-01-01

283

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.

Omsi

2004-01-01

284

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 every day lives.

Cosi

2000-01-01

285

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 C.

2011-07-13

286

Efficient processing of system scenarios in statistical and machine learning studies for power system operational and investment planning  

Microsoft Academic Search

Power System security assessment and the associated planning studies are becoming more and more complex with ever increasing uncertainties in all time horizons. An effective means of performing operational and investment planning studies of network limitations associated with static or dynamic post-disturbance performance problems has been to take a Monte Carlo simulation based approach. The approach harnesses computing power to

Venkat Kumar Krishnan

2010-01-01

287

Collection and analysis of data related to fusion machines (JET and TLK) operating experience on component failure  

Microsoft Academic Search

This paper presents the summary of the activities related to data collection on the operating experiences gained in the Joint European Torus (JET) for the Vacuum and Active Gas Handling Systems (VS, AGHS) and in the Tritium Laboratory of Karlsruhe (TLK). Failures\\/malfunctions, including information on failure modes and, where possible, causes and consequences of failures, have been identified, as well

T. Pinna; G. Cambi; S. Ciattaglia; A. Lo Bue; S. Knipe; J. Orchard; R. Pearce; U. Besserer

2005-01-01

288

Automated processing of whole blood units: operational value and in vitro quality of final blood components  

PubMed Central

Background The Community Transfusion Centre in Madrid currently processes whole blood using a conventional procedure (Compomat, Fresenius) followed by automated processing of buffy coats with the OrbiSac system (CaridianBCT). The Atreus 3C system (CaridianBCT) automates the production of red blood cells, plasma and an interim platelet unit from a whole blood unit. Interim platelet unit are pooled to produce a transfusable platelet unit. In this study the Atreus 3C system was evaluated and compared to the routine method with regards to product quality and operational value. Materials and methods Over a 5-week period 810 whole blood units were processed using the Atreus 3C system. The attributes of the automated process were compared to those of the routine method by assessing productivity, space, equipment and staffing requirements. The data obtained were evaluated in order to estimate the impact of implementing the Atreus 3C system in the routine setting of the blood centre. Yield and in vitro quality of the final blood components processed with the two systems were evaluated and compared. Results The Atreus 3C system enabled higher throughput while requiring less space and employee time by decreasing the amount of equipment and processing time per unit of whole blood processed. Whole blood units processed on the Atreus 3C system gave a higher platelet yield, a similar amount of red blood cells and a smaller volume of plasma. Discussion These results support the conclusion that the Atreus 3C system produces blood components meeting quality requirements while providing a high operational efficiency. Implementation of the Atreus 3C system could result in a large organisational improvement.

Jurado, Marisa; Algora, Manuel; Garcia-Sanchez, Felix; Vico, Santiago; Rodriguez, Eva; Perez, Sonia; Barbolla, Luz

2012-01-01

289

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, Fenton’s 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

290

Operating Guidelines for Dragline Stripping Operations; Analysis of Tandem Systems. Final Technical Report as of 31 August 1979.  

National Technical Information Service (NTIS)

Practical guidelines for choice of dragline block length, bench height, pit width, and dig/cast patterns are developed for single seam, dragline-based hillside and hilltop stripping operations in northern and southern Appalachia. They are based on intervi...

F. Cook R. L. Lappi

1979-01-01

291

Measurement of the operating parameters of a wind and diesel operating power plant at Lastours. (Final report).  

National Technical Information Service (NTIS)

This report presents the results obtained by the wind and diesel operating plant at Lastours. It also shows the several devices of this plant and explains their functioning. (TEC). 10 figs., 51 tabs. (ERA citation 20:025771)

J. M. Noel

1991-01-01

292

Boltzmann Machine for the Organization of Intelligent Machines.  

National Technical Information Service (NTIS)

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, utilizi...

M. C. Moed G. N. Saridis

1989-01-01

293

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.

Bunker, Dan

2010-01-01

294

Research at and Operation of the Materials Science Beamline (X-11) at the National Synchrotron Light Source. Final Report  

SciTech Connect

This is the final report for DOE DE-FG02-89ER45384. An overview of the operational history and status of beamline X-11A at the end of the contract period, and a brief review of the core science program at NCSU and the scientific results of X-11A since the last progress report is also presented.

Sayers, Dale E.

2003-10-15

295

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

296

Operations at Regional Traveler Information Centers: The Case of the TravInfo Field Operational Test - Final Results  

Microsoft Academic Search

TravInfo is a regional traveler information system in the San Francisco Bay Area. It was a Field Operational Test (FOT) over a two-year period from September 1996 to September 1998 with funding from the Federal Highway Administration and the California Department of Transportation (Caltrans). TravInfo's goal was to broadly disseminate accurate, comprehensive, timely, and reliable information on traffic conditions and

Mark A. Miller; Dimitri Loukakos

2000-01-01

297

Animal-Drawn Agricultural Implements, Hand-Operated Machines and Simple Power Equipment in the Least Developed and Other Developing Countries; Report of a Manufacturing Development Clinic Held at New Delhi, India on 21-30 October 1974.  

National Technical Information Service (NTIS)

The Manufacturing Development Clinic on Animal-Drawn Agricultural Implements, Hand-Operated Machines and Simple Power Equipment in the Least Developed and Other Developing Countries was held at New Delhi from 21 to 30 October 1974. The Clinic was organize...

1974-01-01

298

Kicking Machine  

NSDL National Science Digital Library

In this design challenge activity, learners build a machine that kicks a Ping-Pong ball into a cup lying on its side 12 inches away. Learners use a pendulum, a rubber band, or a combination of the two to do this and test the accuracy of their machines by shooting a Ping-Pong ball into a cup. Educators can use this activity to demonstrate simple machines and kinetic/potential energy. This activity can be followed up with "Extreme Kicking Machine" which adds an even greater challenge into the mix.

Wgbh

2010-01-01

299

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.

300

Bookkeeping Machines, Business Education: 7718.04.  

ERIC Educational Resources Information Center

|Postings, accounts receivable and payable, and payroll entries made while using a bookkeeping machine make up the course content described in this pamphlet. The course seeks to prepare students to operate accounting machines as a prerequisite to the operation of more complex machines and adult, on-the-job training. Course guidelines, objectives,…

McShane, Jane

301

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

302

JBK-75 stainless steel machinability study  

Microsoft Academic Search

The study on forgings characterized machinability of the material by varying cutting speeds and feedrates utilizing four tools for the roughing operation and four tools for the semi-finish operation. Tools tested were obtained from four manufacturers. Twelve parts were machined utilizing an experimental design to determine all possible interactions between cutting speeds and feedrates. To evaluate the machinability of the

A. P. McManigle; A. W. Simonis

1993-01-01

303

Effect of the Family and Medical Leave Act on the operation of cafeteria plans. Final regulations.  

PubMed

This document contains final regulations relating to cafeteria plans that reflect changes made by the Family and Medical Leave Act of 1993 (Act). The final regulations provide the public with guidance needed to comply with the Act and affect employees who participate in cafeteria plans. PMID:11759729

2001-10-17

304

Improving Traffic Signal Management and Operations: A Basic Service Model. Final Report December 2008-December 2009.  

National Technical Information Service (NTIS)

This report provides a guide for achieving a basic service model for traffic signal management and operations. The basic service model is based on simply stated and defensible operational objectives that consider the staffing level, expertise and prioriti...

R. W. Denney

2009-01-01

305

Tulane Family Planning Operations Research in the English Speaking Caribbean: Final Research Findings.  

National Technical Information Service (NTIS)

Operations research in the area of family planning has proved useful in identifying barriers to contraceptive use, resolving these problems, and testing new approaches to service delivery. The results of operations research in six English-speaking Caribbe...

J. T. Bertrand P. Russell-Brown E. Landry

1986-01-01

306

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

307

Human factors review of electric power dispatch control centers. Volume 4. Operator information needs. Final report  

Microsoft Academic Search

Human factors is a systems-oriented interdisciplinary specialty concerned with the design of systems, equipment, facilities and the operational environment. An important aspect leading to the design requirements is the determination of the information requirements for electric power dispatch control centers. There are significant differences between the system operator's actions during normal and degraded states of power system operation, and power

R. J. Miller; K. Najaf-Zadeh; H. T. Darlington; H. D. McNair; S. Seidenstein; A. R. Williams

1982-01-01

308

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

309

Woodworking Machines.  

National Technical Information Service (NTIS)

Woodworking machines are made to do a wide variety of jobs. For any one job there are usually a number of makes, sizes, and styles of machines from which to choose. They are not standardized. Only a brief classification and outline of specifications for f...

1964-01-01

310

Excavating machines  

SciTech Connect

The excavating machine has a cutter carrying boom carried by a boom support member which can be swung about an axis extending in the direction of the roadway. The machine includes a cutter unit and a stay unit each of which is releasably anchorable in the roadway and each of which can be advanced relative to the other unit.

Plummer, D.

1980-10-21

311

Machine Learning.  

ERIC Educational Resources Information Center

|As scientists seek to develop machines that can "learn," that is, solve problems by imitating the human brain, a gold mine of information on the processes of human learning is being discovered, expert systems are being improved, and human-machine interactions are being enhanced. (SK)|

Kirrane, Diane E.

1990-01-01

312

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

313

49 CFR 236.772 - Machine, interlocking.  

Code of Federal Regulations, 2012 CFR

...Transportation 4 2012-10-01 2012-10-01 false Machine, interlocking. 236.772 Section 236.772 Transportation...SYSTEMS, DEVICES, AND APPLIANCES Definitions § 236.772 Machine, interlocking. An assemblage of manually operated...

2012-10-01

314

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

315

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

316

49 CFR 236.772 - Machine, interlocking.  

Code of Federal Regulations, 2011 CFR

...Transportation 4 2011-10-01 2011-10-01 false Machine, interlocking. 236.772 Section 236.772 Transportation...SYSTEMS, DEVICES, AND APPLIANCES Definitions § 236.772 Machine, interlocking. An assemblage of manually operated...

2011-10-01

317

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

318

Determining the feasibility of utilizing Iowa coal in rural grain drying operations. Final report  

SciTech Connect

The Burn-all unit tested is unfeasible for grain drying operations due to the required frequent operator attention during use. The Stokermatic unit tested, especially if modified as suggested, appears to be economically feasible for on-farm drying operations. Coal-fired drying operations are technically feasible for both on farm and elevator drying of corn. Preliminary studies indicate that stoker coal fire tube boiler dryers are technically feasible for elevator grain drying operations, and are economically feasible for some operations. Present fuel economics are not yet favorable to cause many farmers or any elevator operators to convert to coal. Iowa coal industry can respond to an increase in demand for cleaned coal. Flow of energy dollars leaving Iowa could be reduced by up to $80M if all corn was dried using coal as a fuel. The use of coal to dry grain at medium to large elevators is economically feasible at today's prices.

Peterson, P.W.; Birlingmair, D.H.

1982-05-31

319

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

320

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.

Integrated Teaching And Learning Program

321

Analysis of airborne radiometric data. Volume 2. Description, listing, and operating instructions for the code DELPHI/MAZAS. Final report  

SciTech Connect

The computer code DELPHI is an interactive English language command system for the analysis of airborne radiometric data. The code includes modules for data reduction, data simulation, time filtering, data adjustment and graphical presentation of the results. DELPHI is implemented in FORTRAN on a DEC-10 computer. This volume gives a brief set of operations instructions, samples of the output obtained from hard copies of the display on a Tektronix terminal and finally a listing of the code.

Sperling, M.; Shreve, D.C.

1978-12-01

322

Final Hazard Categorization for the Remediation of Six 300FF2 Operable Unit Solid Waste Burial Grounds  

Microsoft Academic Search

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

J. D. Ludowise

2006-01-01

323

Towards intelligent automation of power plant design and operations: The role of interactive simulations and distributed expert systems.  

National Technical Information Service (NTIS)

The design process of a power plant can be viewed as machine- chromosome engineering: When the final layout is implemented, the lifetime operating characteristics, constraints, strengths, and weaknesses of the resulting power-plant-specimen are durably de...

P. J. Otaduy

1992-01-01

324

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. Itâs 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

325

76 FR 77996 - Notice of Issuance of Final Air Permits for Eni US Operating Co., Inc. and Port Dolphin Energy, LLC.  

Federal Register 2010, 2011, 2012, 2013

...FRL-9506-9] Notice of Issuance of Final Air Permits for Eni US Operating Co., Inc. and Port Dolphin Energy, LLC. AGENCY...issued a final Outer Continental Shelf (OCS) air permit for Eni US Operating Inc. (Eni). This permit became effective on...

2011-12-15

326

Ultrasonic Detection of Anomalous Machining Damage  

NASA Astrophysics Data System (ADS)

During manufacture, rotating jet-engine components are shaped into their final configurations by machining operations which may include turning, drilling and broaching. Anomalous machining conditions, such as a loss of lubricant or a damaged cutting tool, can result in an altered near-surface microstructure, shortening the useful life of the component. In this paper we report on preliminary attempts to detect anomalous machining damage using ultrasonic surface acoustic waves (SAWs). Two pulse/echo immersion setups are considered: normal-incidence acoustic microscopy (Method 1) and oblique-incidence SAW backscatter (Method 2). Each method is applied to pairs of Ti 6-4 turned coupons, one manufactured using accepted best practices; and one purposely damaged using abusive machining conditions. Representative results are presented for each method. Method 1 is very sensitive to changes in surface topology; thus near-surface damage that is accompanied by surface topology changes can be readily detected. For detecting microstructural damage in the absence of topology changes, Method 2 is preferable. In Method 2 the transducer tilt angle is found which results in the maximum backscattered SAW ``noise.'' This angle is dependent on the effective surface wave speed, which in turn is influenced by the near-surface microstructure. For a set twenty Ti 6-4 turned coupons, Method 2 was generally able to distinguish damaged from undamaged surfaces.

Margetan, F. J.; Enyart, Darrel; Thompson, R. B.

2009-03-01

327

Machine Accounting. An Instructor's Guide.  

ERIC Educational Resources Information Center

|Designed to prepare students to operate the types of accounting machines used in many medium-sized businesses, this instructor's guide presents a full-year high school course in machine accounting covering 120 hours of instruction. An introduction for the instructor suggests how to adapt the guide to present a 60-hour module which would be…

Gould, E. Noah, Ed.

328

Lens Centering and Beveling Machine.  

National Technical Information Service (NTIS)

The machine operates continuously to recieve a series of blank lenses and functions automatically to center each lens and pass it through grinding stations. The machine includes a number of spindle pairs each including a lower spindle fixed to an index ta...

W. E. Soong R. E. Miller J. Des Jardins L. H. Sharper

1964-01-01

329

Energy study of rail passenger transportation. Volume 2. Description of operating systems. Final report  

Microsoft Academic Search

The rail passenger systems of the US are described in terms of selected physical, operating, and economic characteristics, and relates services rendered to energy usage and costs. Rail passenger transportation exists in 4 distinct forms: intercity railroads, suburban railroads, heavy-rail transit, and light-rail transit. Each form varies in technical equipment, design of facilities, operating practices, size of systems. Specific data

C. Henderson; H. T. Ellis; J. P. Wilhelm

1979-01-01

330

Study of universal-pressure boiler for cycling operation. Final report  

Microsoft Academic Search

Babcock and Wilcox, under contract with Electric Power Research Institute, conducted preliminary design studies and a series of cycling field tests on an oil-fired, subcritical once-through boiler designed for base load operation. The field tests indicated what design changes should be made to the plant prior to being used for cyclic operation. Major concerns with the existing plant are thermal

Crispin

1982-01-01

331

Determining the Feasibility of Utilizing Iowa Coal in Rural Grain Drying Operations. Final Report.  

National Technical Information Service (NTIS)

The Burn-all unit tested is unfeasible for grain drying operations due to the required frequent operator attention during use. The Stokermatic unit tested, especially if modified as suggested, appears to be economically feasible for on-farm drying operati...

P. W. Peterson D. H. Birlingmair

1982-01-01

332

FINAL REPORT: Reduction in Energy Consumption and Variability in Steel Foundry Operations  

Microsoft Academic Search

This project worked to improve the efficiency of the steel casting industry by reducing the variability that occurs because of process and product variation. The project focused on the post shakeout operations since roughly half of the production costs are in this area. These improvements will reduce the amount of variability, making it easier to manage the operation and improve

F. Peters

2005-01-01

333

Test of Lead-Acid Accumulators for Load-Frequency Control Operation. Final Report.  

National Technical Information Service (NTIS)

The results of this project prove the feasibility of battery energy storage units for load-frequency control and instantaneous reserve operation. A mode of operation has been defined which copes with both the requirements of the battery technology and the...

K. G. Kraemer H. Dominik B. Voigt

1986-01-01

334

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

335

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

Microsoft Academic Search

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

Debe; Mark K

2007-01-01

336

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.

2010-05-18

337

Pipetting Machine.  

National Technical Information Service (NTIS)

The pipetting machine is for use in a laboratory of physiology for the handling of serums. The apparatus includes a syringe and a valve portion constituting a variable stroke positive displacement pump and components for selecting a predetermined stroke t...

C. R. Mencken

1965-01-01

338

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

339

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

340

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

341

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

342

Support vector machine in machine condition monitoring and fault diagnosis  

NASA Astrophysics Data System (ADS)

Recently, the issue of machine condition monitoring and fault diagnosis as a part of maintenance system became global due to the potential advantages to be gained from reduced maintenance costs, improved productivity and increased machine availability. This paper presents a survey of machine condition monitoring and fault diagnosis using support vector machine (SVM). It attempts to summarize and review the recent research and developments of SVM in machine condition monitoring and diagnosis. Numerous methods have been developed based on intelligent systems such as artificial neural network, fuzzy expert system, condition-based reasoning, random forest, etc. However, the use of SVM for machine condition monitoring and fault diagnosis is still rare. SVM has excellent performance in generalization so it can produce high accuracy in classification for machine condition monitoring and diagnosis. Until 2006, the use of SVM in machine condition monitoring and fault diagnosis is tending to develop towards expertise orientation and problem-oriented domain. Finally, the ability to continually change and obtain a novel idea for machine condition monitoring and fault diagnosis using SVM will be future works.

Widodo, Achmad; Yang, Bo-Suk

2007-08-01

343

Coal unit trains: operations, maintenance, and technology. Volume 1. Summary report. Final report  

SciTech Connect

The electric utility industry consumes approximately 600 million tons of coal annually. Most of this coal is delivered by rail, and rail freight charges are an important component of utility fuel costs. A thorough understanding of railroad operating costs is highly desirable because it can assist utilities in negotiating rail rates and in making decisions relating to car acquisition and maintenance. There is uncertainty regarding the magnitude of railroad operating costs, particularly the costs of operating the unit trains customarily used for coal transportation. The research summarized in this report provides a better understanding of the following components of unit train operating costs: maintenance-of-way, fuel, and equipment maintenance. Each cost component is analyzed in detail, and relationships are developed between cost components and the major factors influencing them. Cost-reducing techniques are identified and ranked. Two of these are analyzed in detail: the use of aluminum cars and improved car maintenance practices. 1 figure, 16 tables.

Nayak, P.R.

1984-11-01

344

Operations, maintenance, and replacement 10-year plan, 1990-1999: Environmental strategy. Final report.  

National Technical Information Service (NTIS)

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 tox...

1990-01-01

345

Public Transportation Alternative Fuels: A Perspective for Small Transportation Operations. Final Report.  

National Technical Information Service (NTIS)

The purpose of the study is to provide small, public transportation operators in the State of California with information necessary to evaluate alternative fuels and technologies for complying with future State and Federal emission regulations. The altern...

1992-01-01

346

Assessment of PEA's Operational Efficiency: 5. Human Resources (HR) Study, Appendices. Final Report.  

National Technical Information Service (NTIS)

This study, conducted by Southern Electric International, was funded by the U.S. Trade and Development Agency. The report assesses the operational efficiency of the Provincial Electricity Authority in Bangkok, Thailand. Volume 9 is divided into the follow...

1997-01-01

347

Assessment of PEA's Operational Efficiency: 1. Corporate Planning (CP) Study. Final Report.  

National Technical Information Service (NTIS)

Ths study, conducted by Southern Electric International, was funded by the U.S. Trade and Development Agency. The report assesses the operational efficiency of the Provincial Electricity Authority in Bangkok, Thailand. Volume 2 is divided into the followi...

1997-01-01

348

Feasibility Study on Building and Operating a Fermentation Plant to Produce Monosodium Glutamate (MSG) (Final Report).  

National Technical Information Service (NTIS)

The feasibility study includes the development of a Monosodium Glutamate (MSG) market study, the process technology and engineering required to define the scope of building the plant, the cost of building and operating the plant, a project financial plan ...

2003-01-01

349

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

National Technical Information Service (NTIS)

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 Applicatio...

J. Francfort J. Argueta M. Wehrey D. Karner L. Tyree

1999-01-01

350

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

351

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

352

Avenger team performance during engagement operations in a chemical environment. Final report, November 1991-February 1993  

SciTech Connect

For this report, the effects of Mission Oriented Protective Posture (MOPP) on Avenger weapon system operation were tested in an engagement simulation facility. Two experiments were conducted, each using the Avenger system in a different mode of operation. The same teams participated in each experiment, but team members switched duty positions for the second experiment. The team chief's ability to identify aircraft was significantly impaired by the MOPP gear in both modes of weapon system operation. The reduced field of view (FOV) created by the chemical protective (CP) mask is believed to have caused the MOPP4 performance decrement. The gunner, on the other hand, was not affected by the CP clothing, regardless of mode of weapon system operation. The advanced technology available to the gunner (easily seen displays and aids) seems to overcome the adverse effects of the MOPP gear. Chemical protective (CP) clothing, Avenger, Forward area air defense (FAAD), Range target system (RTS), Mission oriented protective posture (MOPP).

Silver, J.D.; Lockhart, J.M.

1993-06-01

353

Hazardous Materials Safety and Security Technology Field Operational Test. Volume II. Evaluation Final Report Synthesis.  

National Technical Information Service (NTIS)

This report provides the findings from SAICs 2-year independent evaluation of the Hazardous Materials (HAZMAT) Safety and Security Technology Field Operational Test for the USDOT. This comprehensive report consists of the following three volumes: Volume I...

D. Stock M. Jensen M. Carter E. Wik C. Louisell C. Mitchell

2004-01-01

354

Waste Management Operations, Idaho National Engineering Laboratory, Idaho. Final Environmental Impact Statement.  

National Technical Information Service (NTIS)

Chapters are provided on background; anticipated benefits; characterization of the INEL environment; environmental impact of operations; unavoidable adverse environmental effects; relationship between short-term uses and long-term productivity; relationsh...

1977-01-01

355

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

Microsoft Academic Search

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

J. Francfort; J. Argueta; M. Wehrey; D. Karner; L. Tyree

1999-01-01

356

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

357

Sensor controlled robotic welding for nuclear power plant operations: Final progress report  

SciTech Connect

The objective of the proposed research is to apply real time monitoring, artificial intelligence and on-line correction to dynamically control the depth of weld penetration and weld integrity during the welding process. Welding is a major technique used in the fabrication, construction and maintenance of power generating and energy conversion systems. In the welding process, fluctuations in process variables lead to weld defects such as lack of penetration, cracks, porosity and undesirable metallurgical structures. This research will apply advanced infrared sensing techniques which have been successfully used in seam tracking to the equally complex problem of weld defect and weld puddle penetration control. Thermal temperature distributions of plates being welded will be dynamically measured during welding using infrared techniques. These temperature distributions will be used to interpret changes in the size and shape of the molten metal pool and the presence of conditions that may lead to defects in the solidified weld. The ultimate result of this research will be the development of machines which are capable of sensing and altering process variables to eliminate defective welds and increase the productivity of the welding process. Successful completion of this proposed research will lead to potential major improvements in the fabrication, construction and maintenance of advanced nuclear reactors and promote increased safety and reliability while decreasing construction costs. 47 refs., 50 figs.

Chin, B.A.

1989-06-08

358

Oil-spill-response measures for offshore oil and gas operations. Final report  

Microsoft Academic Search

This report examines spill-response capabilities for arctic and subarctic Outer Continental Shelf (OCS) areas. The paper begins with a discussion of the regulatory requirements for pollution prevention and oil-spill-response planning, then describes the spill-response organization that industry has established to meet these requirements. Finally, the report examines the spill-response measures that have been proposed for the Alaska OCS Region and

T. L. Murrell; J. R. Levine; J. B. Regg; E. J. Tennyson

1987-01-01

359

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

360

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

361

Topic in Depth - Precision Machining  

NSDL National Science Digital Library

As technology advances and devices become smaller and more complex, the need for precision manufacturing processes is becoming increasingly important. A number of innovative techniques for precision machining have been developed to enable the construction and operation of such contrivances.

2010-09-06

362

Municipal-waste-combustion systems - operation and maintenance study. Final report  

SciTech Connect

The study was undertaken to determine the significant operation and maintenance (O and M) considerations that bear directly on the day in/day out air-pollution-compliance status of municipal-waste combustors (MWC's). Two independent tasks were performed to compile and document these O and M considerations. First, seven MWC sites were visited to interview equipment operators and management personnel to determine the nature of the problems they routinely encounter in operating MWC systems. The information gathered from their visits is reported herein through a description of O and M problems and solutions for each major subsystem in the MWC process. The subsystems discussed include: fuel preparation and handling; furnace operation; ash handling; air pollution control equipment; fans, ducts and stacks; and procedural considerations such as startup/shutdown, equipment inspection, and recordkeeping. Second, a field study was conducted to determine the effect of operating variables on visible emissions (opacity) at one facility. Ninety days of hourly readings of process and opacity data were collected by the MWC staff. An attempt was then made to statistically correlate the process and opacity data.

Allen, R.D.

1987-06-01

363

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

364

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

365

Wilmington swim school solar installation. Acceptance test plan report operation and maintenance manual. Final design report  

SciTech Connect

The solar system for the Wilmington Swim School, New Castle, Delaware, a 20,650 square foot building including an 8250 square foot addition, is composed of 2500 square feet of Revere Sun-Aid Collectors having a single special low-iron glazing and a black chrome selective surface. A vertical wall passive collection system was constructed as part of the new addition. This report includes the following: building and system survey; acceptance test plan; as-built drawings; sequence of operations; manufacturers specifications; routing maintenance; SPM-10 operation manual; photographs of installation, predicted performance data; major problems and resolutions; lessons learned and recommendations; and verification statements.

Not Available

1979-10-25

366

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

367

15 CFR 5.5 - Vending machines.  

Code of Federal Regulations, 2010 CFR

...2009-01-01 2009-01-01 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...

2009-01-01

368

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

369

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

370

Elevated Temperature Machining of High Strength Alloys.  

National Technical Information Service (NTIS)

Hot-machining tests in turning, boring, and milling were conducted on AISI 4340, AISI 4150, and on manganese steel workpieces to improve the shaping of both conventional and difficult-to-machine alloys. The workpieces were heated during the machining oper...

A. O. Schmidt

1974-01-01

371

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

372

Electrical discharge machining for sharpening diamond disks  

Microsoft Academic Search

Electrical discharge machines have undergone rapid improvements in capability, economical operation, speed and flexibility. In fact, electrical discharge machining (EDM) is now the fourth most popular machining process, selling more than all other processes except milling, turning and grinding. Ninety percent of EDM applications in the world are used to produce molds, stamping dies, extrusion dies, forging dies, tool fixtures

Jesus Doval-Gandoy; Ramón Pasandin; Bernardo Fernandez

2004-01-01

373

ANALYSIS OF THE INTERFERENCE SYNCHRONOUS MACHINE  

Microsoft Academic Search

Interference synchronous machines operate at different speeds of the fundamental air gap field and of the rotor, because the fundamental permeance wave is produced by interference of open stator and rotor slots the numbers of which being slightly different. In the literature different names are used for this remarkable electrical machine (“Synchronous inductor motor”, “Vernier reluctance motor”). Interference synchronous machines

E. ANDRESEN

1978-01-01

374

???????????????????????????????????????????? Design and Development of Shrimp Straightening Machine  

Microsoft Academic Search

A semi automatic shrimp straightening machine controlled by a programmable logic controller (PLC) was designed and developed. The machine consisted of three main parts, a shrimp conveyor, a shrimp pressing straightening part and the controller. The machine had three operation steps. In the first step, a pneumatic cylinder retreated at the stroke of 5 cm to move the conveyor with

Prakarn Paemunkong

375

An Operational Blueprint for Health Career Education and Training Program. Final Report.  

ERIC Educational Resources Information Center

|An operational blueprint for health career education and training was designed to provide the District of Columbia public schools with a documented strategy for implementing a comprehensive, multifocal health careers program. The blueprint will establish a mechanism for interagency communication and cooperation at all levels, involving all…

Hood, Theresa W.; Thompson, Christopher W.

376

Development and operational validation of a transit bus simulation. Final research report  

Microsoft Academic Search

A computer simulation incorporating the significant operational factors and transit bus characteristics has been developed to compute power, fuel consumption, and emissions over an arbitrarily prescribed mission profile. Factors considered include roadway grade, air density, aerodynamic drag, bus center-of-gravity location, front and rear tire inflation pressures, acceleration, weight, and torque converter characteristics. A portable instrumentation package was designed, constructed, and

J. E. Fairchild; L. W. Stephens; T. Williams; G. A. Jr Simmons

1975-01-01

377

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.

378

Study of Improved Blowout Prevention Systems for Offshore Drilling Operations. Final Report, February 1986.  

National Technical Information Service (NTIS)

A six year research project has been undertaken which is concerned with the development of improved blowout prevention systems that are better suited to deep water drilling operations. The two main systems included in the study are (1) the diverter system...

1986-01-01

379

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

Microsoft Academic Search

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

F. G. Trummer; B. L. Twining

1991-01-01

380

Final Results of Incorporating an Operational Formal Method Into a Software Engineering Curriculum  

Microsoft Academic Search

This project, which is funded by the NSF Educational Innovation Program (CDA-9522257), integrates an operational formal method into the undergraduate software engineering curriculum of the Systems Analysis Department of Miami University. Formal analysis skills were added to the curriculum to address the concern that the discipline of software engineering education lacks sufficient emphasis on mathematics and engineering science. The integration

Ann E. Kelley Sobel

1999-01-01

381

Geological and operational summary, Navarin Basin cost number 1 well, Bering Sea, Alaska. Final report  

Microsoft Academic Search

The report discusses the first continental offshore stratigraphic test (COST) well drilled in the Navarin Basin. The well was drilled to determine the hydrocarbon potential of the area covered by OCS (Outer Continental Shelf) Lease Sale 83, held in April 1984. The report covers drilling operations, shallow geology and geohazards, paleontology and biostratigraphy, lithology, velocity analysis, seismic stratigraphy, the bottom-simulating

R. F. Turner; C. M. McCarthy; D. A. Steffy; M. B. Lynch; G. C. Martin

1984-01-01

382

Estimation of risk reduction from improved PORV (power operated relief values) reliability in PWRs: Final report  

Microsoft Academic Search

An analysis was performed to explore the risk reduction potential of improving the pressurizer Power Operated Relief Values (PORV) and block valve reliability for two representative PWR plants, Indian Point 3, and Oconee 3. Attention was focused upon particular transient scenarios including steam generator tube rupture (SGTR), a stuck-open PORV, cooldown to cold shutdown, and the use of PORV in

C. J. Hsu; K. Perkins; R. Youngblood

1988-01-01

383

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…

Texas State Technical Coll., Marshall.

384

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.

385

Reduced gas pressure operation of sludge digesters: Expanded studies. Final report  

SciTech Connect

Previous investigations strongly suggested that the municipal anaerobic sludge digestion process could be enhanced by reactor operation with subatmospheric headspace pressures. Enhanced solids destruction and methane production along with increased process stability were observed in these earlier studies. However, due to the small scale of the anaerobic reactors use (approximately 1.5L), definitive steady-state measurements could not be obtained. These expanded studies were undertaken to verify and define the magnitude of the benefits that might be obtained with vacuum operation of sludge digesters. Four reactors (approximately 15.0L) were fed municipal sludge at three different organic loading rates while being maintained with a 15-day solids retention time. One reactor had a constant headspace pressure of 1.02 atm; a second was maintained at 0.75 atm; and the remaining two reactors were operated for the majority of the day at 1.02 atm, and for part of the day with a 0.75 atm headspace pressure. Additional small-scale, batch experiments were performed to help identify controlling digestion mechanisms. The results of these expanded studies indicate that vacuum operation did not yield significant advantages over the organic loading range investigated (0.088 to 0352 lb vSS/ft(3).d).

Friedman, A.A.

1993-09-01

386

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.

387

Flight Simulator: Use of SpaceGraph Display in an Instructor/Operator Station. Final Report.  

ERIC Educational Resources Information Center

|This report describes SpaceGraph, a new computer-driven display technology capable of showing space-filling images, i.e., true three dimensional displays, and discusses the advantages of this technology over flat displays for use with the instructor/operator station (IOS) of a flight simulator. Ideas resulting from 17 brainstorming sessions with…

Sher, Lawrence D.

388

Final Report for Organic Partitioning Resulting from Operation of an INTEC Double-needle Sampler  

SciTech Connect

The double needle sampler testing is a continuation of previous test series that investigated the fate of organic species in the Process Equipment Waste Evaporator (PEWE) system at the Idaho Nuclear Technology and Engineering Center (INTEC). This test series was designed to investigate the effects of operation of the double needle sampling systems on volatile organic constituents in an acidic feed matrix.

Michael B. Heiser

2003-09-01

389

Reduced gas pressure operation of sludge digesters: Expanded studies. Final report  

SciTech Connect

Previous investigations strongly suggested that the municipal anaerobic sludge digestion process could be enhanced by reactor operation with subatmospheric headspace pressures. Enhanced solids destruction and methane production along with increased process stability were observed in these earlier studies. However, due to the small scale of the anaerobic reactors used ( {approx}1.5 L), definitive steady-state measurements could not be obtained. These expanded studies were undertaken to verify and define the magnitude of the benefits that might be obtained with vacuum operation of sludge digesters. Four reactors ({approx}15.0 L) were fed municipal sludge at three different organic loading rates while being maintained with a 15-day solids retention time. One reactor had a constant headspace pressure of 1.02 atm; a second was maintained at 0.75 atm; and the remaining two reactors were operated for the majority of the day at 1.02 atm, and for part of the day with a 0.75 atm headspace pressure. Additional small-scale, batch experiments were performed to help identify controlling digestion mechanisms. The results of these expanded studies indicate that vacuum operation did not yield significant advantages over the organic loading range investigated (0.088 to 0.352 lb VSS/ft{sup 3}{center_dot}d).

Not Available

1993-09-01

390

Strategic Defense System distributed operating system R D (research and development) review and recommendations. Final report  

SciTech Connect

The Strategic Defense System (SDS) imposes a set of requirements on distributed operating systems that is not met by state-of-the-art systems. In this paper, the key requirements are identified as being real-time support, reliability/fault tolerance, and security. The extent to which these requirements are being addressed by current distributed operating system research is discussed. The three distributed operating system projects that are currently receiving SDIO funds - Alpha, Cronus, and Mach - are reviewed. A fourth project, the V-distributed system project of Stanford University, is also highlighted, because of its unique potential for meeting certain SDS needs. Recommendations on the directions in which the SDIO should pursue each of these projects are made. The Office of Naval Research (ONR) Real-Time Computing Initiative, which is addressing some issues critical to the development of the SDS, is described. It is recommended that the SDIO seek to coordinate with the ONR in this effort. The appendix to this paper provides detailed descriptions of the Alpha, Cronus, Mach, and V-distributed operating system projects, as well as three other projects noted in the body of the paper: Amoeba, Clouds, and the Heterogeneous Computer Systems (HCS) Project.

Gordon, K.D.; Linn, C.J.

1989-04-01

391

Services to Conduct Seminars on Truck Fuel Economy for Fleet Owners and Owner Operators. Final Report.  

National Technical Information Service (NTIS)

This program was established by the DOE to expand the exposure of the Voluntary Truck and Bus Fuel Economy Program. The intent of the program was to reach two audiences: (1) dealers and (2) owner operators and small fleets. The aim was to educate the deal...

1982-01-01

392

Conversion of biomass materials into gaseous products. Final report - Operation of the PDU  

Microsoft Academic Search

Studies were completed on the Garrett Energy Research and Engineering Company's multiple hearth furnace for the thermal conversion of biomass into a medium Btu gaseous product. Initial work on a two foot diameter, single hearth reactor provided comprehensive design data through an examination of the pertinent variables over a fairly wide range of operations. Kinetic and dynamic models were obtained

D. E. Garrett; R. D. Mikesell

1979-01-01

393

78 FR 24734 - Final Environmental Impact Statement for the Construction and Operation of an Infantry Platoon...  

Federal Register 2010, 2011, 2012, 2013

...S. Army Garrison, Hawai`i, (USAG-HI) propose to construct and operate a modern...to PTA EIS, P.O. Box 514, Honolulu, HI 96809 or by email to PTAPEIS@bah.com. FOR FURTHER INFORMATION CONTACT: USAG-HI Public Affairs Office by phone at...

2013-04-26

394

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

395

FINAL REPORT: Reduction in Energy Consumption and Variability in Steel Foundry Operations  

SciTech Connect

This project worked to improve the efficiency of the steel casting industry by reducing the variability that occurs because of process and product variation. The project focused on the post shakeout operations since roughly half of the production costs are in this area. These improvements will reduce the amount of variability, making it easier to manage the operation and improve the competitiveness. The reduction in variability will also reduce the need for many rework operations, which will result in a direct reduction of energy usage, particularly by the reduction of repeated heat treatment operations. Further energy savings will be realized from the reduction of scrap and reduced handling. Field studies were conducted at ten steel foundries that represented the U.S. steel casting industry, for a total of over 100 weeks of production observation. These studies quantified the amount of variability, and looked toward determining the source. A focus of the data collected was the grinding operations since this is a major effort in the cleaning room, and it represents the overall casting quality. The grinding was divided into two categories, expected and unexpected. Expected grinding is that in which the location of the effort is known prior to making the casting, such as smoothing parting lines, gates, and riser contacts. Unexpected grinding, which was approximately 80% of the effort, was done to improve the surfaces at weld repair locations, to rectify burnt on sand, and other surface anomalies at random locations. Unexpected grinding represents about 80% of the grinding effort. By quantifying this effort, the project raised awareness within the industry and the industry is continuing to make improvements. The field studies showed that the amount of variation of grinding operations (normalized because of the diverse set of parts studied) was very consistent across the industry. The field studies identified several specific sources that individually contributed to large process variation. This indicates the need for ongoing monitoring of the process and system to quantify the effort being expended. A system to measure the grinding effort was investigated but did not prove to be successful. A weld wire counting system was shown to be very successful in tracking casting quality by monitoring the quantity of weld wire being expended on a per casting basis. Further use of such systems is highly recommended. The field studies showed that the visual inspection process for the casting surface was a potentially large source of process variation. Measurement system analysis studies were conducted at three steel casting producers. The tests measured the consistency of the inspectors in identifying the same surface anomalies. The repeatability (variation of the same operator inspecting the same casting) was found to be relatively consistent across the companies at about 60-70%. However, this is still are very large amount of variation. Reproducibility (variation of different operators inspecting the same casting) was worse, ranging between 20 to 80% at the three locations. This large amount of variation shows that there is a great opportunity for improvement. Falsely identifying anomalies for reworking will cause increased expense and energy consumption. This is particularly true if a weld repair and repeated heat treatment is required. However, not identifying an anomaly could also result in future rework processing, a customer return, or scrap. To help alleviate this problem, casting surface comparator plates were developed and distributed to the industry. These plates are very inexpensive which enables them to be provided to all those involved with casting surface quality, such as operators, inspectors, sales, and management.

F. Peters

2005-05-24

396

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

397

Clean air program: Compressed natural gas safety in transit operations. Final report  

SciTech Connect

This report examines the safety issues relating to the use of Compressed Natural Gas (CNG) in transit service. The safety issues were determined by on-site surveys performed by Battelle of Columbus, Ohio and Science Applications International Corporation (SAIC) of McLean, Virginia of seven transit agencies using CNG. The survey consisted of: (1) extensive interviews; (2) review of records, procedures, and plans relating to safety; (3) examination of facilities and equipment; (4) observation of operations including fueling, maintenance, morning start-up, and revenue service; and (5) measurements of methane concentrations in the air where the buses are being fueled or stored. Interviews included all job categories associated with management, operations, safety, maintenance, acquisition, and support.

Friedman, D.M.; Malcosky, N.D.

1995-10-01

398

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.

399

Geological and operational summary, North Aleutian Shelf Coast No. 1 well, Bering Sea, Alaska. Final report  

SciTech Connect

Discusses the first continental offshore stratigraphic test well drilled in the North Aleutian Basin Planning Area, Bering Sea, Alaska. The well was drilled to determine the hydrocarbon potential of the area. The report covers drilling operations; lithology and core data; velocity analysis; geologic setting and tectonic framework; seismic stratigraphy; well-log interpretation and lithostratigraphy; paleontology and biostratigraphy; geothermal gradient; organic geochemistry; abnormal formation pressure; geologic hazards and shallow geology; and environmental considerations.

Turner, R.F.

1988-11-01

400

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

401

Integration of Machining and Inspection in Aerospace Manufacturing  

NASA Astrophysics Data System (ADS)

The main challenge for aerospace manufacturers today is to develop the ability to produce high-quality products on a consistent basis as quickly as possible and at the lowest-possible cost. At the same time, rising material prices are making the cost of scrap higher than ever so making it more important to minimise waste. Proper inspection and quality control methods are no longer a luxury; they are an essential part of every manufacturing operation that wants to grow and be successful. However, simply bolting on some quality control procedures to the existing manufacturing processes is not enough. Inspection must be fully-integrated with manufacturing for the investment to really produce significant improvements. The traditional relationship between manufacturing and inspection is that machining is completed first on the company's machine tools and the components are then transferred to dedicated inspection equipment to be approved or rejected. However, as machining techniques become more sophisticated, and as components become larger and more complex, there are a growing number of cases where closer integration is required to give the highest productivity and the biggest reductions in wastage. Instead of a simple linear progression from CAD to CAM to machining to inspection, a more complicated series of steps is needed, with extra data needed to fill any gaps in the information available at the various stages. These new processes can be grouped under the heading of "adaptive machining". The programming of most machining operations is based around knowing three things: the position of the workpiece on the machine, the starting shape of the material to be machined, and the final shape that needs to be achieved at the end of the operation. Adaptive machining techniques allow successful machining when at least one of those elements is unknown, by using in-process measurement to close the information gaps in the process chain. It also allows any errors to be spotted earlier in the manufacturing process, so helping the problems to be resolved more quickly and at lower cost.

Simpson, Bart; Dicken, Peter J.

2011-12-01

402

Geological and operational summary, Navarin Basin cost number 1 well, Bering Sea, Alaska. Final report  

SciTech Connect

The report discusses the first continental offshore stratigraphic test (COST) well drilled in the Navarin Basin. The well was drilled to determine the hydrocarbon potential of the area covered by OCS (Outer Continental Shelf) Lease Sale 83, held in April 1984. The report covers drilling operations, shallow geology and geohazards, paleontology and biostratigraphy, lithology, velocity analysis, seismic stratigraphy, the bottom-simulating reflector, well log analysis, abnormal pressure, geothermal gradient, organic geochemistry, and environmental considerations. The report synthesizes the regional geology and basin evolution in light of the subsurface data available from this large potential petroleum province.

Turner, R.F.; McCarthy, C.M.; Steffy, D.A.; Lynch, M.B.; Martin, G.C.

1984-08-01

403

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

404

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

405

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

406

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

407

Mining machine  

Microsoft Academic Search

A mining machine is disclosed in which a cutting drum undercuts a vein of coal and side relief cutters make vertical kerfs in the vein upwardly from the undercut. A chisel plate is forced into the coal vein and breaks loose the material above the undercut and between the side relief cuts. The coal falls into conveyors and is loaded

Mendola

1981-01-01

408

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.

Lessonplans, Utah

2012-10-22

409

Laugh Machine  

Microsoft Academic Search

The Laugh Machine project aims at endowing virtual agents with the capability to laugh naturally, at the right moment and with the correct intensity, when interacting with human participants. In this report we present the technical development and evaluation of such an agent in one specific scenario: watching TV along with a participant. The agent must be able to react

Jrme Urbain; Radoslaw Niewiadomski; Jennifer Hofmann; Emeline Bantegnie; Tobias Baur; Nadia Berthouze; Hseyin Cakmak; Richard Thomas Cruz; Stphane Dupont; Matthieu Geist; Harry Griffin; Florian Lingenfelser; Maurizio Mancini; Miguel Miranda; Gary McKeown; Sathish Pammi; Olivier Pietquin; Bilal Piot; Tracey Platt; Willibald Ruch; Abhishek Sharma; Gualtiero Volpe; Johannes Wagner

2012-01-01

410

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

411

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

412

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

413

Operator service access and pay telephone compensation--Federal Communications Commission. Final rule; order on reconsideration.  

PubMed

Five petitions for reconsideration or clarification were filed regarding Policies and Rules Concerning Operator Service Access and Pay Telephone Compensation, CC Docket No. 91-35: Report and Order and Further Notice of Proposed Rule Making, 6 FCC Rcd 4736, 56 FR 40,793 (1991) (hereinafter Report and Order), in which the Commission adopted policies and rules concerning consumer access to operator service providers (OSPs) and compensation for competitive public payphone owners for calls not utilizing their presubscribed OSPs. In response to the petitions, the Commission adopted an Order on Reconsideration (hereinafter Order) in which it reaffirmed that: (1) Call aggregators must allow consumers to use equal access ("10XXX") codes according to the schedule described in the original Report and Order, with certain clarifications; (2) all OSPs, except those exempted in the Order, must establish an 800 or 950 access number within six months of the effective date of the previously adopted rules; and (3) calls initiated with an 800 number that does not serve as an OSP's access code are not within the scope of the statutory provision that required the Commission to consider payphone compensation. In addition, the Commission granted the request to order local exchange carriers (LECs) to offer blocking and screening services designed to control potentially fraudulent 10XXX calling. The Commission deferred certain unblocking deadlines pending the deployment of the required LEC services. PMID:10120446

1992-08-01

414

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

415

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

416

AWOS Data Acquisition System (ADAS), Automated Lightning Detection and Reporting System (ALDARS), Operational Test and Evaluation (OT & E) Final Test Report.  

National Technical Information Service (NTIS)

The Federal Aviation Administration (FAA) Automated Weather Observation System (AWOS) Data Acquisition System (ADAS)/Automated Lightning Detection and Reporting System (ALDARS) Operation Test and Evaluation (OT&E) final Test Report is prepared by the ADAS...

D. Groot E. Schlain H. Vuong J. Stratton

1998-01-01

417

Final Environmental Impact Statement to Construct and Operate the Crownpoint Uranium Solution Mining Project, Crownpoint, New Mexico. Docket No. 40-8968, Hydro Resources, Inc.  

National Technical Information Service (NTIS)

The Final Environmental Impact Statement (FEIS) addresses the proposed action of issuing a combined source and 11e(2) byproduct material license and minerals operating leases for Federal and Indian lands to Hydro Resources, Inc. (HRI). This action would a...

1997-01-01

418

Final Environmental Statement Related to the Operation of Callaway Plant, Unit No. 1: Docket No. 50-483, Union Electric Company.  

National Technical Information Service (NTIS)

The information in this Final Environmental Statement is the second assessment of the environmental impact associated with the construction and operation of the Callaway Plant, located in Callaway County, Missouri. The Draft Environmental Statement was is...

1982-01-01

419

Development of an onboard data acquisition system for recording vehicle operating characteristics and emissions. Final report  

SciTech Connect

The purpose of the study was to design, install and test an onboard data acquisition system in a 1991-model Chevrolet Lumina, to collect engine and vehicle operating data, including tailpipe pollutant concentrations. The system measures and records manifold air pressure, manifold air temperature, engine RPM, throttle position, and coolant temperature, all on a second-by second basis. Lateral and longitudinal acceleration and oxygen sensor voltage are measured at 10 hertz and averages are calculated and recorded at 1 hertz. Vehicle speed is measured at 1 hertz and can be differentiated and subtracted from longitudinal acceleration to estimate grade. Additional digital data are sampled and recorded to document gear changes or change in status of the `service engine soon` indicator. A portable gas analyzer is used to measure and record concentrations on hydrocarbons, carbon dioxide, carbon monoxide and oxygen in engine exhaust.

Di Genova, F.; Austin, T.; Tilden, J.; Lee, J.M.; Tarczy, P.

1994-01-27

420

Centaur gas-turbine modification and development for solar-fossil hybrid operation. Final report  

SciTech Connect

A study was performed with the objectives of developing conceptual designs of the hardware and systems modifications required to operate the Solar Turbines Incorporated Centaur recuperative gas turbine-generator set in a solar-fossil hybrid mode. The combustion and control systems were defined as the major technology voids and a single-shaft Centaur generator set with a parallel trim combustor selected as the preferred system configuration. A bench-scale combustor development program was conducted to generate the design and performance data necessary for preliminary definition of the full-size trim combustor. A bench-scale trim combustor was developed with the turndown capabilities necessary for the hybrid solar-fossil system.

Roberts, P.B.; Kubasco, A.J.

1982-09-01

421

Method of change management based on dynamic machining error propagation  

Microsoft Academic Search

In multistage machining processes (MMPs), the final quality of a part is influenced by a series of machining processes, which\\u000a are complex correlations. So it is necessary to research the rule of machining error propagation to ensure the machining quality.\\u000a For this issue, a change management method of quality control nodes (i.e., QC-nodes) for machining error propagation is proposed.\\u000a A

Jia Feng; PingYu Jiang

2009-01-01

422

Compiling Fortran 8x array features for the connection machine computer system  

Microsoft Academic Search

The Connection Machine® computer system supports a data parallel programming style, making it a natural target architecture for Fortran 8x array constructs. The Connection Machine Fortran compiler generates VAX code that performs scalar operations and directs the Connection Machine to perform array operations. The Connection Machine virtual processor mechanism supports elemental operations on very large arrays. Most array operators and

Eugene Albert; Kathleen Knobe; Joan D. Lukazt; Guy L. Steele Jr.

1988-01-01

423

Machine Vision Online: Tips for Successfully Applying Machine Vision  

NSDL National Science Digital Library

This Web site provides many articles and educational resources related to machine vision. Most of the materials come from companies with significant experience with the topic, including Ford Motor Company, Adept Technology, and many others. Visitors to the site can read about the basics of machine vision and learn how to successfully implement and design a system. Inexperienced people should start with the Strategies for New Users section, which contains a glossary of terms and a couple brief introductions. The Technical Papers section has information on the various components of a machine vision system, and Applications by Industry has case studies of several different operations.

424

Operator service access and pay telephone compensation rules--FCC. Final rule.  

PubMed

In its Memorandum Opinion and Order on Reconsideration, the Commission affirms certain aspects of the Second Report and Order and makes a number of modifications. First, the Commission affirms its holding that interexchange carriers (IXCs) must pay competitive payphone owners (PPOs) compensation in the amount of $6 per month per payphone. Second, the Commission modifies the Second Report and Order to allow IXCs to avoid the obligation to pay compensation if they do not receive access code calls from payphones to which they are not presubscribed. Third, the Commission affirms its decision to use to toll revenue standard for apportioning compensation among those IXCs required to pay. Fourth, the Commission clarifies in a number of respects its requirements pertaining to the customer-owned coin-operated telephone (COCOT) lists provided by local exchange carriers (LECs) to IXCs. In addition, the Commission denies Allnet's Application for Review of a decision by the Common Carrier Bureau relating to the list of IXCs required to pay compensation. The Commission's Memorandum Report and Order on Reconsideration ensures that PPOs receive fair compensation for the service they provide in originating interstate access code calls from their payphones. PMID:10130063

1993-10-27

425

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

426

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

427

Operation and maintenance of the SOL-DANCE building solar system. Final report  

SciTech Connect

The Sol-Dance building solar heating system consists of 136 flat plate solar collectors divided evenly into two separate building systems, each providing its total output to a common thermal storage tank. An aromatic base transformer oil is circulated through a closed loop consisting of the collectors and a heat exchanger. Water from the thermal storage tank is passed through the same heat exchanger where heat from the oil is given up to the thermal storage. Back-up heat is provided by air source heat pumps. Heat is transferred from the thermal storage to the living space by liquid-to-air coils in the distribution ducts. Separate domestic hot water systems are provided for each building. The system consists of 2 flat plate collectors with a single 66 gallon storage tank with oil circulated in a closed loop through an external tube and shell heat exchanger. Some problems encountered and lessons learned during the project construction are listed as well as beneficial aspects and a project description. As-built drawings are provided as well as system photographs. An acceptance test plan is provided that checks the collection, thermal storage, and space and water heating subsystems and the total system installation. Predicted performance data are tabulated. Details are discussed regarding operation, maintenance, and repair, and manufacturers data are provided. (LEW)

Not Available

1980-07-29

428

Machines and machinists: Capital-skill complementarity from an international trade perspective  

Microsoft Academic Search

We estimate the effect of imported machines on the wages of machine operators utilizing Hungarian linked employer-employee data. We infer exposure to imported machines from detailed trade statistics of the firm and the occupation description of the worker. We find that workers exposed to imported machines earn about 8 percent higher wages than other machine operators at the same firm.

Márton Csillag; Miklós Koren

2011-01-01

429

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

430

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

2009-11-30

431

Charging machine  

DOEpatents

A charging machine for loading fuel slugs into the process tubes of a nuclear reactor includes a tubular housing connected to the process tube, a charging trough connected to the other end of the tubular housing, a device for loading the charging trough with a group of fuel slugs, means for equalizing the coolant pressure in the charging trough with the pressure in the process tubes, means for pushing the group of fuel slugs into the process tube and a latch and a seal engaging the last object in the group of fuel slugs to prevent the fuel slugs from being ejected from the process tube when the pusher is removed and to prevent pressure liquid from entering the charging machine.

Medlin, John B. (Newark, DE)

1976-05-25

432

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

433

Induction machine  

SciTech Connect

A polyphase rotary induction machine for use as a motor or generator utilizes, a single rotor assembly having two series connected sets of rotor windings, a first stator winding disposed around the first rotor winding and means for controlling the current induced in one set of the rotor windings compared to the current induced in the other set of the rotor windings. The rotor windings may be wound rotor windings or squirrel cage windings.

Owen, W.H.

1980-10-14

434

Induction machine  

DOEpatents

A polyphase rotary induction machine for use as a motor or generator utilizing a single rotor assembly having two series connected sets of rotor windings, a first stator winding disposed around the first rotor winding and means for controlling the current induced in one set of the rotor windings compared to the current induced in the other set of the rotor windings. The rotor windings may be wound rotor windings or squirrel cage windings.

Owen, Whitney H. (Ogden, UT)

1980-01-01

435

Stability Analysis of a Reluctance-Synchronous Machine  

Microsoft Academic Search

A stability study of a reluctance-synchronous machine (synchronous-induction machine) is performed by applying the Nyquist stability criterion to the equations which describe the behavior of the machine during small displacements about a steady- state operating point. This investigation reveals that machine instability can occur at low speeds (low frequencies) even though balanced, constant amplitude, sinusoidal voltages are applied to the

THOMAS A. LIPO; PAUL C. KRAUSE

1967-01-01

436

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

437

Free-leg Hexapod: A novel approach of using parallel kinematic platforms for developing miniature machine tools for special purpose operations  

Microsoft Academic Search

The paper reports on the development, calibration and exploitation of a novel configuration of parallel kinematic platform, Free-leg Hexapod (FreeHex), on which the base (fixed) platform has been removed; thus, each leg can be individually positioned on workpiece surfaces of non-flat geometries. To enable the utilisation of FreeHex as a miniature machine tool, calibration methods (to reference the platform against

D. A. Axinte; J. M. Allen; R. Anderson; I. Dane; L. Uriarte; A. Olara

2011-01-01

438

Early succession of bacterial biofilms in paper machines.  

PubMed

Formation of biofilms causes severe problems in paper machines, and hence financial costs. It would be preferable to prevent attachment of the primary-colonizing bacteria than to control the growth of secondary communities, which are sheltered by exopolysaccharide slime layers. We have therefore investigated the early succession of paper-machine biofilms by incubating stainless-steel test coupons in the process water-flow lines in two paper machines operating in slightly alkaline conditions in temperatures (45 and 49 degrees C) supporting thermophilic microbes. Microbial succession was profiled using length heterogeneity analysis of PCR-amplified 16S rRNA genes (LH-PCR) and linking the sequence data of the created 16S rRNA gene libraries to the dominant LH-PCR peaks. Although the bacterial fingerprints obtained from the attached surface communities varied slightly in different samples, the biomarker signals of the dominating primary-colonizing bacterial groups remained high over time in each paper machine. Most of the 16S rRNA gene copies in the early biofilms were assigned to the genera Rhodobacter, Tepidimonas, and Cloacibacterium. The dominance of these sequence types decreased in the developing biofilms. Finally, as phylogenetically identical primary-colonizers were detected in the two different paper mills, the machines evidently had similar environmental conditions for bacterial growth and potentially a common source of contamination. PMID:19390885

Tiirola, Marja; Lahtinen, Tomi; Vuento, Matti; Oker-Blom, Christian

2009-04-24

439

Development of portable laser machining system for laser writing applications  

NASA Astrophysics Data System (ADS)

This study presents a portable laser machining system that consists of a fiber-optic diode laser source with a wavelength of 808 nm, optic/opto-mechanical components, a laser scanning module, and a laser energy control module. The laser beam quality was measured at different operation frequencies during system evaluation. The experimental results of beam profile evaluation indicate that the enlarged collimated beam was the TEM00 mode with a roundness of approximately of 96%. The output laser power level increased as the pulse frequency increased during laser power evaluation. To control the rotating angle of the galvanometric scanning system, the deflective angle was adjusted using a 0.192 voltage to obtain a deflective value of 1mm and the maximum scan field of 100 × 100mm2. The laser source operated at different frequencies, with pulse widths ranging from 530 to 48 ?s. Finally, the proposed machine can also be used for black thick paper laser writing applications.

Hsiao, Wen-Tse; Tseng, Shih-Feng; Chung, Chien-Kai; Chen, Pin-Hung; Chen, Ming-Fei

2013-03-01

440

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

441

Toward human-machine cooperation  

Microsoft Academic Search

In human-machine systems, human activities are mainly oriented toward decision-making, encompassing monitoring and fault detection,\\u000a fault anticipation, diagnosis and prognosis, and fault prevention and recovery. The objectives of this decision-making are\\u000a related to human-machine system performance (production quantity and quality) as well as to overall system safety. In this\\u000a context, human operators often play a double role: one negative in

Patrick Millot

2007-01-01

442

Vibration sensitivity determination of optical machines  

NASA Astrophysics Data System (ADS)

A variety of measurement and production machines are sensitive to vibration from external and internal sources. Examples of such machines are micro-probes, electron-beam microscopes, laser interferometer, and electron-beam exposure tools. A description is presented of a study conducted to determine the floor vibration limits for a variety of such machines. The procedure employed in the study involved the mechanical excitation of the floor near the machines at various frequencies. The vibration level was increased until an impairment in machine operation could be discerned. The vibration levels were analyzed by a real time spectrum analyzer.

Hundal, M. S.

443

JBK-75 stainless steel machinability study.  

National Technical Information Service (NTIS)

The study on forgings characterized machinability of the material by varying cutting speeds and feedrates utilizing four tools for the roughing operation and four tools for the semi-finish operation. Tools tested were obtained from four manufacturers. Twe...

A. P. McManigle A. W. Simonis

1993-01-01

444

Ozone production from photocopying machines  

Microsoft Academic Search

Ten photocopying machines of different makes and models were tested for ozone emissions. All but one produced detectable amounts. Concentrations at operator's breathing zone varied from <4 to 300?µg\\/m, which corresponded to emission rates of <1 to 54?µg\\/copy. Servicing reduced emissions to <1–4?µg\\/copy, but preservicing levels were reattained after several weeks of operation.

M. D. SELWAY; R. J. ALLEN; R. A. WADDEN

1980-01-01

445

Performance evaluation of Automatic Extraction System. Volume V. Geotechnical investigations of the roof conditions in the area mined by the AES machine. Final technical report  

SciTech Connect

This report presents the results of an in-depth geotechnical investigation aimed at assessing the roof, floor, and coal pillar conditions in the area mined by an experimental Automatic Extraction System (AES), built by National Mine Service Co. The study included diamond core drilling, borescope observations, and detailed engineering geological mapping in Consolidation Coal's McElroy coal mine in West Virginia. The field investigations were accompanied by regional geology studies involving aerial photography and lineament analysis as well as by laboratory testing of 103 rock and coal samples. The roof conditions were interpreted by means of an engineering rock mass classification system, known as the Geomechanics Classification. It was found that the roof quality in the areas mined by the AES machine was poor and that the action of the AES support beams could be detrimental to the overall roof stability. Improvements in the procedures for evaluating future AES-type mining are suggested.

Bieniawski, Z.T.; Rafia, F.; Newman, D.A.

1980-07-01

446

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.

2009-11-09

447

Superconducting final focus quadrupoles for a B Factory  

SciTech Connect

The superconducting final focus triplet now operating at the SLAC Linear Collider (SLC) demonstrate most of the features required for a B Factory in terms of detector interaction and high machine tolerances. These features are discussed, together with reasonable expectations for scaling to a B Factory. The effort and schedule for this project are discussed.

Ash, W.

1992-08-01

448

Shaft drilling machine  

SciTech Connect

A shaft drilling machine has a circularly moving drilling head. The drilling head is angularly oriented with respect to the longitudinal axis of the shaft sought to be drilled. Loosened material is transported from the lower portion of the shaft by pickup means, moving with the drilling head, and taken to the upper portion of the angularly oriented bottom of the shaft, whereupon the loosened material or borings slide, by gravity, to a centrally located vertical conveyor mechanism for final removal of the material or borings from the shaft.

Hennecke, J.; Horst, H.; Podellek, H.

1984-11-20

449

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

450

Cryogenic machining of Kevlar composites  

NASA Astrophysics Data System (ADS)

Previous attempts to machine Kevlar aramid fibre reinforced plastics (KFRP) with coventional cutting tools have proven to be extremely difficult. This has somewhat restricted the material's usage, often negating the advantages of its high strength-to-weight ratio and fatigue tolerance. The present paper describes a novel technique of machining KFRP under cryogenic conditions with remarkable results compared to those obtained at ambient temperatures. The investigation carried out with turning operation shows dramatic improvement of the tool performance and surface quality. The effects of various machining parameters such as workpiece temperature, cutting speed, and tool geometry on the machinability of KFRP are presented and analyzed. It appears that care is necessary to judge the tool life as the typical tool wear growth and surface finish or cutting force may produce contradictory results. It is also suggested that, for KFRP, surface finish of the machined workpiece is a very good criterion to determine the tool life. To aid the understanding of the machining mechanics, a microscopic investigation of the cutting zone while actually machining a testpiece at ambient and cryogenic temperatures is also reported.

Bhattacharyya, D.; Allen, M. N.; Mander, S. J.

451

THE DEVELOPMENT OF PEELING MACHINE FOR PERSIMMON FRUIT  

Microsoft Academic Search

Peeling operation affects directly the product quality in persimmon fruits process. The conventional peeling machines may not have persimmon fruits peeling perfectly. Compensation by manual operations is needed. The emphasis of this study is to develop a new peeling machine to improve the effect of persimmon fruits peeling. Applying the approach mold theory, this peeling machine provides a tensile force

Wen-Bin Chen

1999-01-01

452

High speed synchronous homopolar and permanent magnet machines comparative study  

Microsoft Academic Search

Two types of high-speed (30000-r\\/min) synchronous machines, a homopolar and a permanent magnet, have been designed and constructed. The authors discuss possible applications of such machines and problems associated with high-speed operation. Details of machine geometry and design procedures are described. In comparing the two types of synchronous machines, it is shown that the power\\/mass ratio of a homopolar machine

M. Hippner; R. G. Harley

1992-01-01

453

VIRTUAL TRAINING ENVIRONMENT FOR A 3AXIS CNC MILLING MACHINE  

Microsoft Academic Search

A virtual training environment for a 3-axis CNC milling machine is presented. The key elements of the environment are: (a) textured 3D photo-realistic virtual models of the machines and lab; (b) machine simulator for the machines' controls and moving parts; (c) semi-empirical model of the machining operation; (d) hierarchical knowledge-base for process training; (e) unstructured knowledge-base for lecture delivery; (f)

Tamer M. Wasfy; Ayman M. Wasfy; Hazim El-Mounayri; Daniel Aw

454

Multifunctional machine tool  

Microsoft Academic Search

The functions of metal cutting machine tools have been increasing to meet the demands of high productivity and high accuracy in machining complicated and difficult parts on one machine. This paper presents a comprehensive survey of multi-functional machine tools used for metal cutting, and their kinematic configurations, control and programming technologies. Design principles and assessment of multi-functional machine tools are

T. Moriwaki

2008-01-01

455

Dual coil power strapping machine  

US Patent & Trademark Office Database

An improved power strapping machine comprising a strapping device and a soft touch package compression device. The strapping device includes plurality of coils for supplying strapping to a guide apparatus. A chute apparatus for routing strapping around an article or package to be strapped is connected to the guide apparatus. The machine includes sensors and a control circuit adapted to operate the machine continuously without the need to stop production, since when one coil is out of strapping or a misfeed occurs, the machine will automatically load another coil of strapping and continue strapping packages. The soft touch package compression device uses pneumatic-drive chain drive systems for moving soft belts up and down. The soft belts compress the package so that the strapping device can place a tight strap around the package.

1994-08-02

456

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

457

Mining machine  

SciTech Connect

A mining machine is disclosed comprising a mobile base and a cutting head assembly at a forward end of the mobile base having a cutter drum rotatable about an output shaft disposed along the longitudinal axis of the cutter drum. A drive system for the cutting head assembly comprises at least one motor for driving at least one toothed motor pinion and a generally cylindrical combination gear having generally circular end surfaces. A bevel or face gear is formed in at least one of the end surfaces, having teeth adapted to mate with and be driven by the toothed motor pinion. The combination gear has a worm gear formed in the outside cylindrical surface, which is disposed in driving engagement with the teeth of an output gear integrally and coaxially connected to the output shaft of the cutter drum.

Becker, H.R.

1984-12-04

458

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

459

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

460

FY05 LDRD Final Report Investigation of AAA+ Protein Machines that Participate in DNA Replication, Recombination, and in Response to DNA Damage LDRD Project Tracking Code: 04-LW-049.  

National Technical Information Service (NTIS)

The AAA+ proteins are remarkable macromolecules that are able to self-assemble into nanoscale machines. These protein machines play critical roles in many cellular processes, including the processes that manage a cell's genetic material, but the mechanism...

C. Venclovas D. Barsky D. Sawicka M. S. de Carvalho-Kavanagh

2006-01-01

461

Precursor systems analyses of automated highway systems. Activity area K AHS roadway operational analysis. Final report, September 1993November 1994  

Microsoft Academic Search

This study considers the roadway operational requirements of an automated highway system (AHS) in light of corresponding operational requirements for existing conventional highways with traffic operations centers (TOCs). Contrasts and similarities between TOC and AHS operations are identified. Maintenance operations and activities are the focus of the study. Similarities and contrasts between AHS and conventional highways are considered, analyzed, and

R. Schulze; D. Roper; J. Tsao; B. Michael

1995-01-01

462

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

463

Ski repairing machine  

US Patent & Trademark Office Database

An apparatus for grinding the base of an alpine ski, comprising a frame, a reciprocating carriage mounted on the frame and being adapted to receive a ski, a base grinding tool mounted to the frame for engagement with the base of the ski, the movement of the carriage causing engagement between the grinding tool and the ski base in successive grinding strokes. The machine also comprises a pressure control device in operative relation to the grinding tool for maintaining the grinding pressure on the base generally constant during a grinding stroke.

Mario; Petrin (LaSalle, Quebec, CA); Blaise; Petrin (Montreal, Quebec, CA)

1989-11-21

464

Electrical, mechanical, and hydraulic system improvement study for continuous-miner operations. Volume 1. Technical information and conclusions. Final technical report as of March 30, 1980  

Microsoft Academic Search

Coal production using continuous mining machines has rarely reached the level of production for which the machines are designed. The lost opportunity for higher coal production is directly related to machine downtime. The specific goals of this program were to identify those mechanical, electrical and hydraulic components and systems directly responsible for the majority of continuous mining machine failures and

W. N. Patterson; F. Orona; L. Travis; R. Murray

1980-01-01

465

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

466

Parallel machines scheduling with machine shutdowns  

Microsoft Academic Search

We study the nonpreemptive parallel machines scheduling problem where some of the machines are planned to be shutdown. We apply LPT algorithm to the problem and analyze its performance. Our analysis shows that the makespan of the LPT schedule is bounded by twice the optimum makespan if no more than half of the machines are allowed to be shutdown simultaneously.

H.-C. Hwang; S. Y. Chang

1998-01-01

467

DC Machine  

NSDL National Science Digital Library

The effect of the commutator is to produce a fixed spatial distribution of current directions in the armature conductors (shown as blue & green circles) independent of shaft rotation. The field created by these currents (armature reaction) is vertically directed along the quadrature axis. The field established by the excitation of the stator poles is directed along the horizontal direct axis. This package presents computer models of electric machines based on the space vector formulation leading to the assessment of the dynamic performance of open- and closed-loopac and dc drive systems. The Simulink/Matlab implementation is adopted because of its inherent integration of vectorized system representations in block diagram form, of numerical analysis methods, of graphical portrayal of time evolutions of signals combined with the simple realization of the functionality of controllers and power electronic excitations. The development of Simulink models of drive assemblies is a relatively simple task consisting of combining input-output block representation of the various components making up the system; these blocks can readily be reused (utilizing standard copy-and-paste techniques) to modify the system components or the configuration of the system. This approach provides a powerful design tool because of the ease of observing the effects of parameters modifications and of differing system configurations and control strategies.

Riaz, Mahmoud

2012-08-29

468

A new topology of hybrid synchronous machine  

Microsoft Academic Search

Permanent-magnet synchronous machines are able to operate over a wide range of speeds at constant power through the use of control laws allowing for flux weakening. Generally, this is performed by applying a strong demagnetizing current in the d axis, yet such an approach involves the risk of irreversible magnet demagnetization and, consequently, a reduction in machine performance. This paper

Y. Amara; J. Lucidarme; M. Gabsi; M. Lecrivain; A. H. B. Almed; A. D. Akemakou

2001-01-01

469

Derivation of synchronous machine parameters from tests  

Microsoft Academic Search

This paper describes a test procedure for derivation of synchronous machine parameters. The tests can be conducted with ease and without hazard on generators in utility systems. Unlike textbook methods involving short circuit and slip tests which are inconvenient and hazardous, the proposed method involves simple procedures, which can be implemented in normal operation of the machine.

F. P. de Mello; J. R. Ribeiro

1977-01-01

470

Machine Tool Series. Duty Task List.  

ERIC Educational Resources Information Center

This task list is intended for use in planning and/or evaluating a competency-based course to prepare machine tool, drill press, grinding machine, lathe, mill, and/or power saw operators. The listing is divided into six sections, with each one outlining the tasks required to perform the duties that have been identified for the given occupation.…

Oklahoma State Dept. of Vocational and Technical Education, Stillwater. Curriculum and Instructional Materials Center.

471

Analysis of Instability in Electrical Machines  

Microsoft Academic Search

While there exist numerous studies of electromechanical instabilities of specific electrical machines in constant or periodic speed operation, a broader perspective is not commonly offered. In contrast, a general machine model is used here to present essential and common features of these stability analyses. Fundamental issues are illuminated at this level of generality before specialization to the details of a

George C. Verghese; Jeffrey H. Lang; Leo F. Casey

1986-01-01

472

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

473

Machine Tool Series. Duty Task List.  

ERIC Educational Resources Information Center

|This task list is intended for use in planning and/or evaluating a competency-based course to prepare machine tool, drill press, grinding machine, lathe, mill, and/or power saw operators. The listing is divided into six sections, with each one outlining the tasks required to perform the duties that have been identified for the given occupation.…

Oklahoma State Dept. of Vocational and Technical Education, Stillwater. Curriculum and Instructional Materials Center.

474

Machine Tool Dynamic Measurements and Diagnostic System.  

National Technical Information Service (NTIS)

Vibrations in machine tools, commonly known as chatter, often are the cause for poor machining operations and breakdown of machinery. A state-of-the-art measurement and analysis system was designed, fabricated, and implemented. The system performs real-ti...

R. K. Wharton T. P. Vincent

1989-01-01

475

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

476

Machine protection system (MPS) for the XFEL  

Microsoft Academic Search

For the operation of a machine like the 3 km long linear accelerator XFEL at DESY Hamburg, a safety system keeping the beam from damaging components is obligatory. This machine protection system (MPS) must detect failures of the RF system, magnets, and other critical components in various sections of the XFEL as well as monitor beam and dark current losses,

Sven Karstensen; Igor Sheviakov; Lars Fröhlich; Kay Rehlich; Martin Staack; Petr Vetrov

2009-01-01

477

Special Machines; Apparel Manufacturing: 9377.10.  

ERIC Educational Resources Information Center

|This course allows students who are interested in careers in apparel manufacturing to learn the techniques for operating the various types of special machines used for finishing garments professionally and for specialty work. Course content includes goals, specific objectives, orientation, safety practices, special machines, assembling a child's…

Dade County Public Schools, Miami, FL.

478

Machine safety is not an option  

Microsoft Academic Search

Standards that exist for the design of machine guarding systems as well as the standards for installation of safety devices on potentially hazardous machinery are reviewed. ANSI standards on safety requirements for construction, care and operation of machine tools, occupational safety and health standards, and British standards are detailed.

K. P. King

1993-01-01

479

Supervisory Machining Control: Design Approach and Experiments  

Microsoft Academic Search

Monitoring and control of machining systems has been shown to dramatically improve operation productivity and part quality; however, very little attention has been given to the coordination of multiple complex machining modules. The current practice is to design the module coordination and to debug the resulting computer code in an ad hoc manner. In this paper, the concept of supervisory

Robert G. Landers; Galip A. Ulsoy

1998-01-01

480

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

481

Small-Scale Hydroelectric Power Demonstration Project: Broad River Electric Cooperative, Inc., Cherokee Falls, South Carolina. Final Operations and Maintenance Report.  

National Technical Information Service (NTIS)

The purpose of this report is to give a final accounting of the costs and benefits derived from the first two years of operation of the Cherokee Falls, Broad River Hydroelectric Demonstration Project which was built at Cherokee Falls, South Carolina. Prio...

1988-01-01

482

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

483

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

Microsoft Academic Search

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.

2004-01-01

484

Flotation machine  

SciTech Connect

A flotation machine is described for beneficiating minerals comprising: a vertical cylindrical chamber for circulating a flotation pulp; a downwardly tapered bottom connected to said vertical cylindrical chamber; feed pipe means for feeding the flotation pulp carrying mineral particles of fine fraction, particles of the useful ingredient of the fine fraction being capable of floating up from the volume of said aerated pulp; discharge pipe means connected to the tapered bottom near its lowest point for discharging gangue; an annular trough for collecting froth concentrate at the top of said chamber; a group of frustoconical shells each having bases of different diameters and a tapered surface secured axially in said chamber and spaced equidistantly from one another height wise of said chamber; aerator means for aerating the flotation pulp secured to the walls of said chamber and communicating therewith to provide aerated water into said chamber; means for feeding mineral particles of coarse fraction, particles of the useful ingredient of the coarse fraction being capable of floating in the froth layer of the flotation pulp, in the form of a hydrocyclone having a cylindrical casing positioned axially over said chamber and a downwardly tapering outlet directed downwardly to feed the coarse particles to said chamber; feed pipe means for feeding the flotation pulp carrying mineral particles of coarse fraction positioned tangentially at said cylindrical casing of the hydrocyclone; and evacuation means for evacuating the liquid phase of the flotation pulp positioned tangentially at said casing of the hydrocyclone over said feed pipe means and connected to said feed pipe means for feeding the flotation pulp carrying mineral particles of the fine fraction.

Zlobin, M.N.; Permyakov, G.P.; Nemarov, A.A.; Metsik, V.M.; Medetsky, J.V.; Taraban, N.T.

1993-08-10

485

Development and Application of a Direct Drive Motor for Performance Enhancement of Versatile Machine Tool Systems  

Microsoft Academic Search

For highly productive machining operations, multi-axis versatile machine tools are drawing more attention in today's market. In order to maintain the stability and the motion accuracy over a long operation time, it is important for such a versatile machine tool to avoid complicated mechanisms, such as an indirect drive, from the viewpoint of machine design. This paper presents a design

M. Mori; M. Fujishima; K. Kashihara; M. Horikawa

2005-01-01

486

Cutting forces and wear in dry machining of Inconel 718 with coated carbide tools  

Microsoft Academic Search

In the machining of heat resistant super alloys used in aeronautical applications and classified as difficult-to-machine materials, the consumption of cooling lubricant during the machining operations is very important. The associated costs of coolant acquisition, use, disposal and washing the machined components are significant, up to four times the cost of consumable tooling used in the cutting operations. To reduce

A. Devillez; F. Schneider; S. Dominiak; D. Dudzinski; D. Larrouquere

2007-01-01

487

Chip breaking system for automated machine tool  

DOEpatents

The invention is a rotary selectively directional valve assembly for use in an automated turret lathe for directing a stream of high pressure liquid machining coolant to the interface of a machine tool and workpiece for breaking up ribbon-shaped chips during the formation thereof so as to inhibit scratching or other marring of the machined surfaces by these ribbon-shaped chips. The valve assembly is provided by a manifold arrangement having a plurality of circumferentially spaced apart ports each coupled to a machine tool. The manifold is rotatable with the turret when the turret is positioned for alignment of a machine tool in a machining relationship with the workpiece. The manifold is connected to a non-rotational header having a single passageway therethrough which conveys the high pressure coolant to only the port in the manifold which is in registry with the tool disposed in a working relationship with the workpiece. To position the machine tools the turret is rotated and one of the tools is placed in a material-removing relationship of the workpiece. The passageway in the header and one of the ports in the manifold arrangement are then automatically aligned to supply the machining coolant to the machine tool workpiece interface for breaking up of the chips as well as cooling the tool and workpiece during the machining operation.

Arehart, Theodore A. (Clinton, TN); Carey, Donald O. (Oak Ridge, TN)

1987-01-01

488

Monitoring machining conditions by infrared images  

NASA Astrophysics Data System (ADS)

During machining process the knowledge of the temperature is the most important factor in tool analysis. It allows to control main factors that influence tool use, life time and waste. The temperature in the contact area between the piece and the tool is resulting from the material removal in cutting operation and it is too difficult to be obtained because the tool and the work piece are in motion. One way to measure the temperature in this situation is detecting the infrared radiation. This work presents a new methodology for diagnosis and monitoring of machining processes with the use of infrared images. The infrared image provides a map in gray tones of the elements in the process: tool, work piece and chips. Each gray tone in the image corresponds to a certain temperature for each one of those materials and the relationship between the gray tones and the temperature is gotten by the previous of infrared camera calibration. The system developed in this work uses an infrared camera, a frame grabber board and a software composed of three modules. The first module makes the image acquisition and processing. The second module makes the feature image extraction and performs the feature vector. Finally, the third module uses fuzzy logic to evaluate the feature vector and supplies the tool state diagnostic as output.

Borelli, Joao E.; Gonzaga Trabasso, Luis; Gonzaga, Adilson; Coelho, Reginaldo T.

2001-03-01

489

Face Recognition in Humans and Machines  

NASA Astrophysics Data System (ADS)

The study of human face recognition by psychologists and neuroscientists has run parallel to the development of automatic face recognition technologies by computer scientists and engineers. In both cases, there are analogous steps of data acquisition, image processing, and the formation of representations that can support the complex and diverse tasks we accomplish with faces. These processes can be understood and compared in the context of their neural and computational implementations. In this chapter, we present the essential elements of face recognition by humans and machines, taking a perspective that spans psychological, neural, and computational approaches. From the human side, we overview the methods and techniques used in the neurobiology of face recognition, the underlying neural architecture of the system, the role of visual attention, and the nature of the representations that emerges. From the computational side, we discuss face recognition technologies and the strategies they use to overcome challenges to robust operation over viewing parameters. Finally, we conclude the chapter with a look at some recent studies that compare human and machine performances at face recognition.

O'Toole, Alice; Tistarelli, Massimo

490

Agents for absorption machines  

US Patent & Trademark Office Database

The present invention proposes adding an alkaline solution or a mixture of two or more alkaline solutions to the agent system of absorption machines operating with ammonia or methylamine as the agent and water as the solvent. This addition of an alkaline solution or an alkaline solution mixture has a number of advantageous effects. These are, i.a. 1. The dissolving respectively expelling heat of the agent is reduced, raising the output figure. 2. The agent vapor generated is very pure. A dephlegmator is obviated. 3. The alkaline solution makes steel surfaces inert when sealed from air and in a high vaccum, thereby obviating corrosion inhibitors. 4. The viscosity of the solvent is reduced, decreasing pump operation.

1998-03-10

491

Zeeman Catastrophe Machine Model  

NSDL National Science Digital Library

The Zeeman Catastrophe Machine Model shows the rotational motion of wheel that is free to rotate but is connected to two elastics, one which is free to move in the xy-plane, and one that is set a fixed distance d away. The model initiates in a steady state where there is no rotational velocity and the magnitude of the tensions in the two elastics are equal. The user can drag the blue point to change the torque on the wheel, or they can enter values in the input fields on the top panel. The user can also change the angle theta, the coefficient of dampening, the spring constant, the moment of inertia. The Zeeman Catastrophe Machine Model was developed as a final project in a sophomore-level Computational Physics course (Phy 200) using the Easy Java Simulations (EJS) modeling tool. It is distributed as a ready-to-run (compiled) Java archive. Double clicking the jar file will run the program if Java is installed. You can modify this simulation if you have EJS installed by right-clicking within the map and selecting "Open Ejs Model" from the pop-up menu item.

Glasmann, Andreu

2012-06-26

492

A Low-Temperature Fatigue Testing Machine.  

National Technical Information Service (NTIS)

The machine is described as an extremely versatile mechanical system. The strain amplitude is adjustable over a wide range of measurable values, and the operating frequency is independent of the stress amplitude. Specimens can be fatigued in any liquid en...

M. A. Wilkov L. E. Murr

1964-01-01

493

Radial Force Characteristics of Switched Reluctance Machine.  

National Technical Information Service (NTIS)

The operation of a switched reluctance machine with eccentric rotor position creates asymmetrical airgap flux distributions and results in unbalanced magnetic pull. This paper comprehensively investigates the static and dynamic radial force characteristic...

N. R. Garrigan A. Storace W. L. Soong T. A. Lipo C. M. Stephens

1999-01-01

494

Operating Guidelines for Dragline Stripping Operations; Analysis of Tandem Systems. Final Technical Report as of 31 August 1979. Volume II. Appendices.  

National Technical Information Service (NTIS)

Pracical guidelines for choice of dragline block length, bench height, pit width, and dig/cost patterns are developed for single beam, drag-line based hillside and hilltop stripping operations in northern and southern Appalachia subject titles for appendi...

F. Cook R. L. Lappi

1979-01-01

495

Investigation of Design, Maintenance and Operating Procedures of Wheelchair Lifts on Transit Buses: Final Report Phase 3.  

National Technical Information Service (NTIS)

The report describes the findings of a project conducted to investigate the design, operation, and maintenance aspects of wheelchair lifts. The project objective is to assess the nature of problems pertaining to design, manufacture, operation, and mainten...

H. Aktan S. Khasnabis J. Pandya

1995-01-01

496

Evaluation of coordinate measuring machines  

NASA Astrophysics Data System (ADS)

Positional accuracy, thermal distortion, and load distortion of the coordinate measuring machine (CMM) are among the most important factors contributing to the final accuracy of the inspected tool or gage. The positional accuracy of the CMM is addressed and a method to evaluate the volumetric accuracy of a bridge design CMM work zone (the volumetric space that houses inspection points on a part to be inspected is described.

Russell, R. J.

1982-11-01

497

Human factors review of electric power dispatch control centers. Volume 3. Operator information needs summary. Final report  

Microsoft Academic Search

Human factors is a systems-oriented interdisciplinary specialty concerned with the design of systems, equipment, facilities and the operational environment. An important aspect leading to the design requirements is the determination of the information requirements for electric power dispatch control centers. There are significant differences between the system operator's actions during normal and degraded states of power system operation, and power

R. J. Miller; K. Najaf-Zadeh; H. T. Darlington; H. D. McNair; S. Seidenstein; A. R. Williams

1982-01-01