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

Telesynergy V3 Wiring Diagram  

Cancer.gov

Extron 8 port Video/Audio Switch WAVE Camera Telesynergy v3 Wiring Diagram ISDN T1/PRI Module CTRLR 0 Legend: S-Video Audio VGA DVI USB RS-232 Serial Microphone Ethernet Planar C5i AMD Exam Cam Canon Document Camera Olympus BX51 Sony DVD Recorder JVC

2

Figure 1. Schematic diagram of a carbon nanotube transistor: (a) cross section view; (b) top view [3].  

E-print Network

(a) (b) Figure 1. Schematic diagram of a carbon nanotube transistor: (a) cross section view; (b transistor, the Carbon Nanotube Field Effect Transistor (CNTFET) avoids most of the fundamental limitations to the CMOS 6T SRAM design. Keywords-Carbon Nanotube Field Effect Transistor; SRAM design; high performance

Ayers, Joseph

3

Forest Research Schematic diagram of the life cycle of Agrilus biguttatus on native oak trees in Britain -from egg to adult  

E-print Network

Forest Research Schematic diagram of the life cycle of Agrilus biguttatus on native oak trees through 5 instar phases before pupation. Acute oak decline (AOD) is a condition of mature native oak Agrilus biguttatus (syn. Agrilus pannonicus) Common names: 1) Two-spotted oak buprestid (Br.) 2) Oak jewel

4

The dream and reality of automated wiring systems  

SciTech Connect

This article examines the use of computer programs for automated substation/switchgear wiring in order to cut production costs associated with wiring diagrams and documentation. The topics of the article include automating the process, schematic capture editor, wiring diagram editor, design aids and documentation, display formats, and system benefits.

Manno, R.; Dugan, D.

1994-01-01

5

Fluctuation diagrams for hot-wire anemometry in subsonic compressible flows  

NASA Technical Reports Server (NTRS)

The concept of using 'fluctuation diagrams' for describing basic fluctuations in compressible flows was reported by Kovasznay in the 1950's. The application of this technique, for the most part, was restricted to supersonic flows. Recently, Zinovev and Lebiga published reports where they considered the fluctuation diagrams in subsonic compressible flows. For the above studies, the velocity and density sensitivities of the heated wires were equal. However, there are considerable data, much taken in the 1950's, which indicate that under some conditions the velocity and density sensitivities are not equal in subsonic compressible flows. Therefore, possible fluctuation diagrams are described for the cases where the velocity and density sensitivities are equal and the more general cases where they are unequal.

Stainback, P. C.; Nagabushana, K. A.

1991-01-01

6

MIDAS, prototype Multivariate Interactive Digital Analysis System, phase 1. Volume 3: Wiring diagrams  

NASA Technical Reports Server (NTRS)

The Midas System is a third-generation, fast, multispectral recognition system able to keep pace with the large quantity and high rates of data acquisition from present and projected sensors. A principal objective of the MIDAS Program is to provide a system well interfaced with the human operator and thus to obtain large overall reductions in turn-around time and significant gains in throughput. The hardware and software generated in Phase I of the overall program are described. The system contains a mini-computer to control the various high-speed processing elements in the data path and a classifier which implements an all-digital prototype multivariate-Gaussian maximum likelihood decision algorithm operating at 2 x 100,000 pixels/sec. Sufficient hardware was developed to perform signature extraction from computer-compatible tapes, compute classifier coefficients, control the classifier operation, and diagnose operation. The MIDAS construction and wiring diagrams are given.

Kriegler, F. J.; Christenson, D.; Gordon, M.; Kistler, R.; Lampert, S.; Marshall, R.; Mclaughlin, R.

1974-01-01

7

Effect of Strong Correlation on the Study of Renormalization Group Flow Diagram for Kondo Effect in AN Interacting Quantum Wire  

Microsoft Academic Search

We present the study of Kondo effect in an interacting quantum wire. We mainly emphasize the effect of strong electronic correlations in the study of renormalization group flow diagram and the stability analysis of fixed points for both magnetic and nonmagnetic impurities. We observe that the behavior of the system is either in the single channel or in the two

Sujit Sarkar

2008-01-01

8

Tracking the individual magnetic wires' switchings in ferromagnetic nanowire arrays using the first-order reversal curves (FORC) diagram method  

NASA Astrophysics Data System (ADS)

The complex hysteretic properties observed in structured ferromagnetic materials can be revealed with remarkable details in magnetization processes like the first-order reversal curves (FORC) - a characterization technique extensively used in recent years. The really fundamental problem in the analysis of experimental FORC diagrams is related to the possibility to link the hysteretic properties of real physical entities in a unique way with regions from the FORC distributions. Actually, what many scientists are often doing is to use a Preisach-type interpretation of FORC data without a proof for the accuracy of this procedure. In this paper we analyze in detail the relation between the switching events of physical entities given by the Preisach function and the FORC distribution in magnetic nanowire arrays with the aim to show the limits of the conventional interpretation of FORC data. For this type of sample we show how the real switching events are contributing to the experimental diagram. We present in a systematic manner the way in which the switchings of the physical wires are observed multiple times (both as positive or negative contributions). The multiplicity of switching occurrences is not the same for all the wires in the sample, being dependent on the wire intrinsic coercivity and its position in the array. In this manner one can track the switchings contributions of real magnetic wires on the FORC diagram.

Dobrot?, Costin-Ionu?; Stancu, Alexandru

2015-01-01

9

Nano-Resolution X-ray Tomography for Deciphering Wiring Diagram of Mammalian Brain  

NASA Astrophysics Data System (ADS)

Neural circuits in the central nervous system are the substrate of various high-order brain functions. However, little is known about the mechanisms underlying neuronal information processing in the brain. Anatomical and functional graph structures of neural networks with actual connections will provide us with perspectives to elucidate the brain complexity. Here, we aim to develop a three-dimensional mouse brain atlas of neural circuits using nano-resolution x-ray tomography by synchrotron radiation. In addition to identifying a large number of synapses, our research will also clarify the structure of neuronal networks for understanding the most complex organ in the body. In this study, we observed metal-stained biological tissues of the mouse brain using hard x-ray Zernike-type phase-contrast microscopy with 60-nm resolution at SPring-8. As a result, the nano-resolution hard x-ray phase-contrast microscope revealed nerve fibers and organelles including mitochondria and synapses in the neural tissue. In the near future, this information will be utilized to begin deciphering the wiring diagram of the brain by using nano-resolution x-ray tomography.

Mizutani, H.; Sagara, H.; Takeuchi, A.; Ohigashi, T.; Yashiro, W.; Uesugi, K.; Suzuki, Y.; Momose, A.; Takagi, T.

2011-09-01

10

Actuator Response of Improved Two-Way Memory TiNi Wires Evaluated by Weight Fraction Diagrams  

NASA Astrophysics Data System (ADS)

This paper experimentally studies the improvement in the actuator response of TiNi shape memory wires brought about by thermal treatments. Heat-treated TiNi wires were thermally cycled at zero stress before being trained by constant stress to develop the two-way shape memory effect. Subsequently, the work output of these two-way memory TiNi shape memory alloys are measured during repeated thermomechanical cycling under various levels of constant stress. Changes in the phase transformation behavior in two-way memory and thermomechanically cycled TiNi shape memory alloy wires are quantified by x-ray diffraction as a function of temperature. The weight fraction diagrams of TiNi wires thermally cycled at zero stress before they were trained suggests that during constant stress training they develop a lower quantity of R-phase than samples that have not been thermally cycled at zero stress before being trained. This gives thermally cycled TiNi samples higher levels of transformation strain and work output during thermomechanical cycling than samples that have not been thermally cycled before training. These results suggest that for the best material performance—that is, significant transformation strain and, consequently, substantial work output—the TiNi wire should be thermally cycled at zero stress before training.

Urbina, C.; De la Flor, S.; Gispert-Guirado, F.; Ferrando, F.

2014-05-01

11

Language, Perception, and the Schematic Representation of Spatial Relations  

ERIC Educational Resources Information Center

Schemas are abstract nonverbal representations that parsimoniously depict spatial relations. Despite their ubiquitous use in maps and diagrams, little is known about their neural instantiation. We sought to determine the extent to which schematic representations are neurally distinguished from language on the one hand, and from rich perceptual…

Amorapanth, Prin; Kranjec, Alexander; Bromberger, Bianca; Lehet, Matthew; Widick, Page; Woods, Adam J.; Kimberg, Daniel Y.; Chatterjee, Anjan

2012-01-01

12

A Functional Schematic Interpreter: an environment for Model Design  

Microsoft Academic Search

There are two major reasons for the value of a functional schematic interpreter as a new programming language for constructing models. These reasons are the capacity of a functional language to express knowledge that has a formal representation on a computer and the rich informal semantics that can be attached to a set of diagrams (a schema). It is this

T. R. Addis; J. J. Townsend Addis

1998-01-01

13

NASA Bioreactor Schematic  

NASA Technical Reports Server (NTRS)

The schematic depicts the major elements and flow patterns inside the NASA Bioreactor system. Waste and fresh medium are contained in plastic bags placed side-by-side so the waste bag fills as the fresh medium bag is depleted. The compliance vessel contains a bladder to accommodate pressure transients that might damage the system. A peristolic pump moves fluid by squeezing the plastic tubing, thus avoiding potential contamination. The work is sponsored by NASA's Office of Biological and Physical Research. The bioreactor is managed by the Biotechnology Cell Science Program at NASA's Johnson Space Center (JSC). NASA-sponsored bioreactor research has been instrumental in helping scientists to better understand normal and cancerous tissue development. In cooperation with the medical community, the bioreactor design is being used to prepare better models of human colon, prostate, breast and ovarian tumors. Cartilage, bone marrow, heart muscle, skeletal muscle, pancreatic islet cells, liver and kidney are just a few of the normal tissues being cultured in rotating bioreactors by investigators.

2001-01-01

14

Schematic displays for the Space Shuttle Orbiter multifunction cathode-ray-tube display system  

NASA Technical Reports Server (NTRS)

A standardized procedure for developing cathode ray tube displayed schematic diagrams. The displaying of Spacelab information on the space shuttle orbiter multifunction cathode ray tube display system is used to illustrate this procedure. Schematic displays with the equivalent tabular displays are compared.

Weiss, W.

1979-01-01

15

Radial Distribution Function (RDF) schematic  

NSDL National Science Digital Library

Schematic of the Radial Distribution Function (RDF). The radial distribution function, also known as RDF, g(r), or the pair correlation function, is a measure to determine the correlation between particles within a system. Specifically, it is a measure of, on average, the probability of finding a particle at a distance of r away from a given reference particle, relative to that for an ideal gas. The general algorithm involves determining how many particles are within a distance of r and r+dr away from a particle. This general theme is depicted in the schematic, where the red particle is our reference particle, and blue particles are those which are within the circular shell, dotted in red.

Iacovella, Christopher R.

2006-09-28

16

Schematic driven layout of Reed Solomon encoders  

NASA Technical Reports Server (NTRS)

Two Reed Solomon error correcting encoders are presented. Schematic driven layout tools were used to create the encoder layouts. Special consideration had to be given to the architecture and logic to provide scalability of the encoder designs. Knowledge gained from these projects was used to create a more flexible schematic driven layout system.

Arave, Kari; Canaris, John; Miles, Lowell; Whitaker, Sterling

1992-01-01

17

Assessing Schematic Knowledge of Introductory Probability Theory  

ERIC Educational Resources Information Center

The ability to identify schematic knowledge is an important goal for both assessment and instruction. In the current paper, schematic knowledge of statistical probability theory is explored from the declarative-procedural framework using multiple methods of assessment. A sample of 90 undergraduate introductory statistics students was required to…

Birney, Damian P.; Fogarty, Gerard J.; Plank, Ashley

2005-01-01

18

Knowledge Based Schematization of Route Directions  

NASA Astrophysics Data System (ADS)

It is common for a wayfinding task to involve travel across a familiar and an unfamiliar region that encompass different parts of the same route. Routes of this kind would entail schematized descriptions and the schematization would directly depend on the familiarity of the region being described. This paper presents a new formalization that identifies key conceptual elements of such routes and introduces a principle of "knowledge chunking" that enables their schematization. This is followed by empirical evidence that supports this schematization of route directions for wayfinder's who may perform such a task. The evidence suggests the need for future wayfinding systems to produce schematized route descriptions based on the user's prior knowledge of a route. The formal approach presented is useful in implementing such a system and possible methods for its implementation are discussed.

Srinivas, Samvith; Hirtle, Stephen C.

19

TELESYNERGY v3 Wiring Diagram  

Cancer.gov

Audio In Mic 1 Mic 2 M ic 3 1 2 3 4 5-AU X 6-VCR 1 2-AU X 3-VCR Aud io Ou t Video In 1 2 3 4 1 2 3 4 Vide o Out V GA I n VGA O ut 1 2 3 4 ISDN BRI N et Ethe rnet ISDN BRI 5 6 E1/ T1 1 2 Data 1 D ata 2 50-60Hz REMOT E 100-240 ~ 1.3A L R + _ + _ OUT

20

CREATING BODE PLOTS USING PSPICE AND PSPICE A/D WITH SCHEMATICS In Schematics  

E-print Network

:+)) in the Trace Expression Box.) Phase Plot: 3. From the Plot menu, choose Add Plot to Window. 4. Select the emptyCREATING BODE PLOTS USING PSPICE AND PSPICE A/D WITH SCHEMATICS In Schematics: 1. Draw your circuit the simulation ends, Probe starts and displays any probes placed in the circuit. In Probe: Magnitude Plot: 1

Harrison, Reid R.

21

Using Functional Flow Diagrams to Enhance Technical Systems Understanding.  

ERIC Educational Resources Information Center

A treatment group of 20 aviation students used training manuals that presented functional flow diagrams before schematic diagrams. Comparison of data from 10 controls on a card-sort task showed that functional flow diagrams enhanced understanding of technical systems. (SK)

Satchwell, Richard E.

1997-01-01

22

Buncher Schematics & CAD Model based on MICE  

E-print Network

Buncher Schematics & CAD Model based on MICE Cavities Alan Grant Daresbury (May 8, 2012) #12;Muon, gradient 15 MV/m. · Cavity length 0.5m, Coil length 0.15m Two Cells Be coated #12;Cooling Section CAD Model

McDonald, Kirk

23

Platform-independent method for computer aided schematic drawings  

DOEpatents

A CAD/CAM method is disclosed for a computer system to capture and interchange schematic drawing and associated design information. The schematic drawing and design information are stored in an extensible, platform-independent format.

Vell, Jeffrey L. (Slingerlands, NY); Siganporia, Darius M. (Clifton Park, NY); Levy, Arthur J. (Fort Lauderdale, FL)

2012-02-14

24

Neural Schematics as a unified formal graphical representation of large-scale Neural Network Structures  

PubMed Central

One of the major outcomes of neuroscientific research are models of Neural Network Structures (NNSs). Descriptions of these models usually consist of a non-standardized mixture of text, figures, and other means of visual information communication in print media. However, as neuroscience is an interdisciplinary domain by nature, a standardized way of consistently representing models of NNSs is required. While generic descriptions of such models in textual form have recently been developed, a formalized way of schematically expressing them does not exist to date. Hence, in this paper we present Neural Schematics as a concept inspired by similar approaches from other disciplines for a generic two dimensional representation of said structures. After introducing NNSs in general, a set of current visualizations of models of NNSs is reviewed and analyzed for what information they convey and how their elements are rendered. This analysis then allows for the definition of general items and symbols to consistently represent these models as Neural Schematics on a two dimensional plane. We will illustrate the possibilities an agreed upon standard can yield on sampled diagrams transformed into Neural Schematics and an example application for the design and modeling of large-scale NNSs. PMID:24167490

Ehrlich, Matthias; Schüffny, René

2013-01-01

25

Proposed Schematics for an Advanced Development Lunar Portable Life Support System  

NASA Technical Reports Server (NTRS)

The latest development of the NASA space suit is an integrated assembly made up of primarily a Pressure Garment System (PGS) and a Portable Life Support System (PLSS). The PLSS is further composed of an oxygen (O2) subsystem, a ventilation subsystem, and a thermal subsystem. This paper baselines a detailed schematic of the PLSS to provide a basis for current and future PLSS development efforts. Both context diagrams and detailed schematics describe the hardware components and overall functions for all three of the PLSS subsystems. The various modes of operations for the PLSS are also presented. A comparison of the proposed PLSS to the Apollo and Shuttle PLSS designs is presented, highlighting several anticipated improvements over the historical PLSS architectures.

Conger, Bruce; Chullen, Cinda; Barnes, Bruce; Leavitt, Greg

2010-01-01

26

Wire Weight  

USGS Multimedia Gallery

Wire weight is lowered to water surface to measure stage at a site. Levels are made to the wire weights elevation from known benchmarks to ensure correct readings. This wire weight is located along the Missouri River in Bismarck, ND....

27

Stereo Diagrams  

NSDL National Science Digital Library

This exercise is an introduction to stereo diagrams. Students draw stereo diagrams for various models, determine the point group and crystal system of certain crystal shapes, and determine which block models match given stereo diagrams.

Dexter Perkins

28

Browsing schematics: Query-filtered graphs with context nodes  

NASA Technical Reports Server (NTRS)

The early results of a research project to create tools for building interfaces to intelligent systems on the NASA Space Station are reported. One such tool is the Schematic Browser which helps users engaged in engineering problem solving find and select schematics from among a large set. Users query for schematics with certain components, and the Schematic Browser presents a graph whose nodes represent the schematics with those components. The query greatly reduces the number of choices presented to the user, filtering the graph to a manageable size. Users can reformulate and refine the query serially until they locate the schematics of interest. To help users maintain orientation as they navigate a large body of data, the graph also includes nodes that are not matches but provide global and local context for the matching nodes. Context nodes include landmarks, ancestors, siblings, children and previous matches.

Ciccarelli, Eugene C.; Nardi, Bonnie A.

1988-01-01

29

Basic Wiring.  

ERIC Educational Resources Information Center

This module is the first in a series of three wiring publications; it serves as the foundation for students enrolled in a wiring program. It is a prerequisite to either "Residential Wiring" or "Commercial and Industrial Wiring." The module contains 16 instructional units that cover the following topics: occupational introduction; general safety;…

Kaltwasser, Stan; And Others

30

The Effect of Conceptual Diagrams on Aviation Mechanics' Technical Systems Understanding.  

ERIC Educational Resources Information Center

A quasi-experimental study explored the effect of functional flow diagrams on technical system understanding. An individualized field training package which contained schematic diagrams that illustrated an aircraft's electrical system was complimented with functional flow diagrams. In a 4-week treatment, a control group of 10 students enrolled in…

Satchwell, Richard E.; Johnson, Scott D.

31

Development and Application of a Rubric for Analysis of Novice Students' Laboratory Flow Diagrams  

ERIC Educational Resources Information Center

The purpose of this study was to develop and apply a scheme for the analysis of flow diagrams. The flow diagrams in question are a schematic representation of written instructions that require students to process the text of their practical manual. It was hoped that an analysis of the flow diagrams would provide insight into students'…

Davidowitz, Bette; Rollnick, Marissa; Fakudze, Cynthia

2005-01-01

32

Development and application of a rubric for analysis of novice students' laboratory flow diagrams  

Microsoft Academic Search

The purpose of this study was to develop and apply a scheme for the analysis of flow diagrams. The flow diagrams in question are a schematic representation of written instructions that require students to process the text of their practical manual. It was hoped that an analysis of the flow diagrams would provide insight into students' understanding of the manual.

Bette Davidowitz; Marissa Rollnick; Cynthia Fakudze

2005-01-01

33

Schematic transportation network maps for wayfinding in urban environments  

NASA Astrophysics Data System (ADS)

Schematic maps are effective tools for representing information about the physical environment and make user easy navigate for wayfinding. Evidence have shown that identifying how many categories of directions in urban street network environments, building taxonomy of branching points, and establishing a hierarchy of connecting roads will help produce effective schematic maps to ease wayfinding. Taking road semantic information and user demands into account, we first build the vector data model of hierarchy of connecting roads. Then we propose the four generalization algorithm and show the framework of how to generate schematic maps. Finally, schematic map on demand is designed in a concrete experiment, while keeping the topological consistency of the road network between original and schematic map.

Dong, Weihua; Liu, Jiping; Guo, Qingsheng

2008-10-01

34

Digital Wires  

NASA Astrophysics Data System (ADS)

We study hardware implementations of cellular automata as reliable, adjustable, and secure commication lines. We discuss energy efficient digital wires on a nano-scale, all-optical digital wires, and digital wires as power lines and present performance data of a prototype digital wire, a six cells wide and ten cells long Boolean network. We show that digital wires have the following advantages: (i) Fixed pulse shape (pulses have a rectangular shape with a constant height and a constant width and produce no echos); (ii) Robust against electric smog. Digital wires based on semiconductor technology are effectively inert against electro-magnetic radiation, except for low-frequency radiation (heat) and high frequency radiation (X-rays). Digital wires based on plasma technology have in addition a very high tolerance for heat and X-rays. In digital wire the pulse speed can be rapidly adjusted. Signals on digital wires can be encrypted. Some digital wires can be used as general purpose computers. The data and the code are the input of the wire. Then both travel along the wire and `collide'. The collision is the computation. The result travels to the end of the wire, for further processing, as parallel input by a CPU, an actuator, or another digital wire.

Brown, Benny; Hubler, Alfred

2009-03-01

35

Velocity diagrams  

NASA Technical Reports Server (NTRS)

The selection and design of velocity diagrams for axial flow turbines are considered. Application is treated in two parts which includes: (1) mean-section diagrams, and (2) radial variation of diagrams. In the first part, the velocity diagrams occurring at the mean section are assumed to represent the average conditions encountered by the turbine. The different types of diagrams, their relation to stage efficiency, and their selection when staging is required are discussed. In the second part, it is shown that in certain cases the mean-section diagrams may or may not represent the average flow conditions for the entire blade span. In the case of relatively low hub- to tip-radius ratios, substantial variations in the velocity diagrams are encountered. The radial variations in flow conditions and their effect on the velocity diagrams are considered.

Whitney, W. J.; Stewart, W. L.

1972-01-01

36

Figure 1. Typical Slow Sand Filter Schematic Supernatant Water  

E-print Network

Vent Control valve Treated Water Effluent flow control structure Overflow Assessing Temperature or pilot studies have evaluated SSF performance during cold water temperatures. Any comparisons of SSFFigure 1. Typical Slow Sand Filter Schematic Headspace Supernatant Water Schmutzdecke Raw water

37

Gender-Based Schematic Processing: An Empirical Investigation and Reevaluation  

Microsoft Academic Search

This study was designed to provide a test of two models of gender-based schematic processing: gender schema theory (Bem, 1981b) and self-schema theory (Markus, Crane, Bernstein, & Saladi, 1982). The former position stipulates that only sex-typed individuals should provide strong evidence for schematic processing of gender-related information, whereas the latter contends that individuals may exhibit such processing with respect to

Thomas J. Payne; Jane M. Connor; Gep Colletti

1987-01-01

38

Application note : using open source schematic capture tools with Xyce.  

SciTech Connect

The development of the XyceTM Parallel Electronic Simulator has focused entirely on the creation of a fast, scalable simulation tool, and has not included any schematic capture or data visualization tools. This application note will describe how to use the open source schematic capture tool gschem and its associated netlist creation tool gnetlist to create basic circuit designs for Xyce, and how to access advanced features of Xyce that are not directly supported by either gschem or gnetlist.

Russo, Thomas V.

2013-08-01

39

CDRP - TeleSynergy(R) - Wiring Diagrams  

Cancer.gov

Home About CDRP Background The Challenge Ahead Health Disparities Cooperative Planning Grant Objective and Scope U56 Award Mechanism Target Populations Funded Institutions Funded Institutions Programs' Presentations CDRP Symposium Presentations Clinical

40

Lighting the Way: Electrical Circuits and Lamp Wiring  

NSDL National Science Digital Library

This self-paced unit for students in grades 6-9 provides an opportunity to explore basic electrical circuits and demonstrate the new knowledge by wiring a lamp, explaining the components of the lamp that are important for the flow of electricity, and completing a schematic of the lamp circuitry.

41

Lucidchart: Diagramming  

NSDL National Science Digital Library

For all those who have wrestled with creating charts and diagrams in word processors, the Google Chrome application Lucidchart may be a long-awaited answer. Users can start using the intuitive drag-and-drop interface right away, although a free signup is required to save diagrams. By sharing a link with coworkers, project collaborators can work on the same diagram at the same time. This application is compatible with all computers running Google Chrome.

2012-08-24

42

Venn Diagrams  

NSDL National Science Digital Library

In this activity, students are given a Venn diagram with certain rules and an element. They must then determine where in the Venn diagram the element belongs. This activity allows students to practice placing elements in Venn diagrams as well as reviewing mathematical terms associated with the different rules. This activity includes supplemental materials, including background information about the topics covered, a description of how to use the application, and exploration questions for use with the java applet.

2011-05-24

43

Venn Diagrams  

NSDL National Science Digital Library

This interactive problem provides an opportunity for children to become familiar with Venn diagrams, while reinforcing knowledge of number properties. Students must place the numbers from 1 to 40 into a Venn diagram of two sets with an intersection. The Teachers' Notes page offers rationale, suggestions for implementation, discussion questions, ideas for extension and support.

44

Venn Diagrams  

NSDL National Science Digital Library

This lesson is designed to introduce students to sorting objects/elements using Venn diagrams. This lesson provides links to discussions and activities related to Venn diagrams as well as suggested ways to integrate them into the lesson. Finally, the lesson provides links to follow-up lessons designed for use in succession with the current one.

2011-05-23

45

Energy Diagram for the Catalytic Decomposition of Hydrogen Peroxide  

ERIC Educational Resources Information Center

Drawing a schematic energy diagram for the decomposition of H[subscript 2]O[subscript 2] catalyzed by MnO[subscript 2] through a simple thermometric measurement outlined in this study is intended to integrate students' understanding of thermochemistry and kinetics of chemical reactions. The reaction enthalpy, delta[subscript r]H, is…

Tatsuoka, Tomoyuki; Koga, Nobuyoshi

2013-01-01

46

Residential Wiring.  

ERIC Educational Resources Information Center

The second in a series of three curriculum packages on wiring, these materials for a five-unit course were developed to prepare postsecondary students for entry-level employment in the residential wiring trade. The five units are: (1) blueprint reading and load calculations; (2) rough-in; (3) service; (4) trim out and troubleshooting; and (5) load…

Taylor, Mark

47

Wire chamber  

DOEpatents

A wire chamber or proportional counter device, such as Geiger-Mueller tube or drift chamber, improved with a gas mixture providing a stable drift velocity while eliminating wire aging caused by prior art gas mixtures. The new gas mixture is comprised of equal parts argon and ethane gas and having approximately 0.25% isopropyl alcohol vapor.

Atac, Muzaffer (Wheaton, IL)

1989-01-01

48

Wire Wise.  

ERIC Educational Resources Information Center

Discusses how today's technology is encouraging schools to invest in furnishings that are adaptable to computer use and telecommunications access. Explores issues concerning modularity, wiring management, ergonomics, durability, price, and aesthetics. (GR)

Swanquist, Barry

1998-01-01

49

UN Wire  

NSDL National Science Digital Library

Provided by the UN Foundation, UN Wire is a new "daily news summary covering the United Nations, global affairs and key international issues." Users interested in the UN or global affairs will find UN Wire an excellent resource for quick, concise accounts of the day's major stories. Each day, UN Wire covers issues such as UN Affairs; Health; Women, Children, and Population; Environment; Trade; Humanitarian Aid; Human Rights; and Peacekeeping. Typical entries include a few short paragraphs and direct links to the original news source and/or related resources. Free registration is required and users can subscribe for free daily email summaries of the headlines. UN Wire should be available for email delivery in complete form in the next few months.

1999-01-01

50

Figure 1. Schematic diagram of a standard 3-transistor current-mediated active pixel sensor.  

E-print Network

, professional photography, star-tracking, and astronomical imaging. In each case, the image quality degradation and confirmed in a recent study of high-end digital still cameras used for professional photography [1]. Newly

Chapman, Glenn H.

51

The Schematic Structure of Computer Science Research Articles  

Microsoft Academic Search

This paper presents a linguistic description of the schematic organisation of research articles in the field of computer science. Forty articles from three different academic journals in computing research have been analysed; the results indicate that the IMRD (introduction-methods-results-discussion) pattern cannot be applied to research articles in computer science systematically. Introductory and concluding sections, however, are used in more instances.

Santiago Posteguillo

1999-01-01

52

Health-Promoting School Indicators: Schematic Models from Students  

ERIC Educational Resources Information Center

Purpose: The purpose of this paper is to outline a three-stage process for engaging with students to develop school level indicators of health in sequential class groups students first generated, then categorised indicators and finally developed schematic representations of their analyses. There is a political and practical need to develop…

Gabhainn, Saoirse Nic; Sixsmith, Jane; Delaney, Ellen-Nora; Moore, Miriam; Inchley, Jo; O'Higgins, Siobhan

2007-01-01

53

An Algorithm for Converting Signed Digrapls to Forrester Schematics  

Microsoft Academic Search

An algorithm for converting signed digraphs to Forrester schematics is described and illustrated. A theoretical framework for the algorithm consisting of theorems is developed first. This theoretical framework is based upon discussions found in a companion paper [1]. Specifically, the algorithm uses the definitional properties of the various quantities and couplings, the consistency supposition, and related axioms and theorems as

James R. Burns; Onur M. Ulgen; Harvey W. Beights

1979-01-01

54

10. Photograph of a line drawing. 'PROCESS FLOW SCHEMATIC, GAS ...  

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

10. Photograph of a line drawing. 'PROCESS FLOW SCHEMATIC, GAS PRODUCER PROCESS, BUILDING 10A.' Holston Army Ammunition Plant, Holston Defense Corporation. August 29, 1974. Delineator: G. A. Horne. Drawing # SK-1942. - Holston Army Ammunition Plant, Producer Gas Plant, Kingsport, Sullivan County, TN

55

Simple procedure for schematic design of passive solar buildings  

SciTech Connect

A simple procedure for use during the schematic phase of passive solar building design is presented in this article. The procedure is quantitative and accurate enough to insure that designs based on the provided starting point values of the primary building parameters will be cost effective.

Wray, W.O.; Kosiewicz, C.E.

1984-01-01

56

Newborns' Recognition of Changing and Unchanging Aspects of Schematic Faces.  

ERIC Educational Resources Information Center

Four experiments investigated newborns' ability to discriminate, recognize, and learn visual information embedded in the schematic face-like patterns preferred at birth. Results indicated that newborns discriminated face-like stimuli relying on their internal features and recognized a perceptual invariance between face-like configurations in…

Turati, Chiara; Simion, Francesca

2002-01-01

57

Stretching Wires  

NSDL National Science Digital Library

In this activity, learners determine the elastic and plastic properties of different types of metal wires. Learners discover that wires of the same gauge, but made of different metals, typically support different loads (masses) before going through the elastic to plastic transition. Learners also learn the difference between elastic deformation, which is recoverable after the load is removed, and plastic deformation, which is not recoverable. Note: one way to save time on this lab is to have different groups test different metals.

2013-01-04

58

Venn diagrams  

NSDL National Science Digital Library

These online resources offer varied opportunities to work with Venn diagrams, one of many tools used in logic and reasoning. Their use is especially helpful in learning foundational notions of definition and set theory. One of the five Process Standards promoted by NCTM, Reasoning and Proof requires middle school students to sharpen such skills as they learn to develop mathematical argument.

National Science Digital Library (NSDL) Middle School Portal Staff

2008-03-10

59

Phase Diagrams  

NSDL National Science Digital Library

This handout and problem set is a stand alone tutorial that introduces students to the basics of phase diagrams and the phase rule. It is a rather lengthy exercise, suitable as a homework assignment. It can replace lectures and yields superior learning.

Dexter Perkins

60

Knowledge-Based Schematics Drafting: Aesthetic Configuration as a Design Task  

E-print Network

Depicting an electrical circuit by a schematic is a tedious task that is a good candidate for automation. Programs that draft schematics with the usual algorithmic approach do not fully exploit knowledge of circuit function, ...

Valdes-Perez, Raul E.

61

University Wire  

NSDL National Science Digital Library

University Wire is a daily Internet news service for college newspapers. Included are a story of the day, a large list of pointers to Internet resources in topics such as current headlines, politics, medicine and health, and women's resources; a "Kopyedit Korner," with pointers to writing reference materials; a placement center with job openings lists for college journalists; a large selection of pointers to college newspapers; and pointers to general circulation newspapers. Pointers to student and professional journalism organizations, as well as a calendar of journalism related events, are also provided. University Wire is a service of The Main Quad.

62

Implementing Tolman's Schematic Sowbug: Behavior-Based Robotics in the 1930's  

E-print Network

Implementing Tolman's Schematic Sowbug: Behavior-Based Robotics in the 1930's Yoichiro Endo Ronald, Georgia 30332-0280 U.S.A. Abstract This paper reintroduces and evaluates the schematic sowbug proposed by Edward C. Tolman, psychologist, in 1939. The schematic sowbug is based on Tolman's purposive behaviorism

63

Implementing Tolman's Schematic Sowbug: Behavior-Based Robotics in the 1930's  

Microsoft Academic Search

This paper reintroduces and evaluates the schematic sowbug proposed by Edward C. Tolman, psychologist, in 1939. The schematic sowbug is based on Tolman's purposive behaviorism, and it is believed to be the first prototype in history that actually implemented a behavior-based architecture suitable for robotics. The schematic sowbug navigates the environment based on two types of vectors, orientation and rogression,

Yoichiro Endo; Ronald C. Arkin

2001-01-01

64

A detailed paraxial schematic eye for the White Leghorn chick  

Microsoft Academic Search

We studied the normal ocular development of the chick (Gallus gallus domesticus, White Leghorn) up to 15 days of age using both longitudinal and cross-sectional methods. The change in refractive error,\\u000a corneal curvature and axial ocular distances were used to construct schematic eyes. Equations are presented which allow prediction\\u000a of refractive error changes associated with changes in vitreous chamber depth. The

Natalia V. Avila; Sally A. McFadden

2010-01-01

65

Incorporation of intraocular scattering in schematic eye models  

SciTech Connect

Beckmann's theory of scattering from rough surfaces is applied to obtain, from the experimental veiling glare functions, a diffuser that when placed at the pupil plane would produce the same scattering halo as the ocular media. This equivalent diffuser is introduced in a schematic eye model, and its influence on the point-spread function and the modulation-transfer function of the eye is analyzed.

Navarro, R.

1985-11-01

66

Space Station Freedom secondary power wiring requirements  

NASA Technical Reports Server (NTRS)

Secondary power is produced by DDCU's (direct current to direct current converter units) and routed to and through secondary power distribution assemblies (SPDA's) to loads or tertiary distribution assemblies. This presentation outlines requirements of Space Station Freedom (SSF) EEE (electrical, electronic, and electromechanical) parts wire and the approved electrical wire and cable. The SSF PDRD (Program Definition and Requirements Document) language problems and resolution are reviewed. The cable routing to and from the SPDA's is presented as diagrams and the wire recommendations and characteristics are given.

Sawyer, C. R.

1994-01-01

67

Superconducting wires  

SciTech Connect

The requirement of high critical current density has prompted extensive research on ceramic processing of high-T/sub c/ superconductors. An overview of wire fabrication techniques and the limitations they impose on component design will be presented. The effects of processing on microstructure and critical current density will also be discussed. Particle alignment has been observed in extruded samples which is attributed to high shear stresses during plastic forming. Composites of superconductor and silver in several configurations have been made with little deleterious effect on the superconducting properties. 35 refs., 2 figs., 1 tab.

Lanagan, M.T.; Poeppel, R.B.; Singh, J.P.; Dos Santos, D.I.; Lumpp, J.K.; Dusek, J.T.; Goretta, K.C.

1988-06-01

68

Color symmetrical superconductivity in a schematic nuclear quark model  

E-print Network

In this note, a novel BCS-type formalism is constructed in the framework of a schematic QCD inspired quark model, having in mind the description of color symmetrical superconducting states. The physical properties of the BCS vacuum (average numbers of quarks of different colors) remain unchanged under an arbitrary color rotation. In the usual approach to color superconductivity, the pairing correlations affect only the quasi-particle states of two colors, the single particle states of the third color remaining unaffected by the pairing correlations. In the theory of color symmetrical superconductivity here proposed, the pairing correlations affect symmetrically the quasi-particle states of the three colors and vanishing net color-charge is automatically insured. It is found that the groundstate energy of the color symmetrical sector of the Bonn model is well approximated by the average energy of the color symmetrical superconducting state proposed here.

Henrik Bohr; João da Providência

2009-10-13

69

Free Body Diagrams  

NSDL National Science Digital Library

This website from the University of Guelph's physics department offers a tutorial on free body diagrams. The tutorial includes an explanation of what free body diagrams are, example problems, a self-test, and a free body diagram java applet.

70

Wiring optimization can relate neuronal structure and function  

PubMed Central

We pursue the hypothesis that neuronal placement in animals minimizes wiring costs for given functional constraints, as specified by synaptic connectivity. Using a newly compiled version of the Caenorhabditis elegans wiring diagram, we solve for the optimal layout of 279 nonpharyngeal neurons. In the optimal layout, most neurons are located close to their actual positions, suggesting that wiring minimization is an important factor. Yet some neurons exhibit strong deviations from “optimal” position. We propose that biological factors relating to axonal guidance and command neuron functions contribute to these deviations. We capture these factors by proposing a modified wiring cost function. PMID:16537428

Chen, Beth L.; Hall, David H.; Chklovskii, Dmitri B.

2006-01-01

71

Schematic Representations in Arithmetical Problem Solving: Analysis of Their Impact on Grade 4 Students  

ERIC Educational Resources Information Center

While the value of "schematic representations" in problem solving requires no further demonstration, the way in which students should be taught how to construct these representations invariably gives rise to various debates. This study, conducted on 146 grade 4 students in Luxembourg, analyzes the effect of two types of "schematic

Fagnant, Annick; Vlassis, Joëlle

2013-01-01

72

Wide-field schematic eye models with gradient-index lens  

E-print Network

agreement with the measured values of the ocular aberrations. To make theoretical eye models more consistentWide-field schematic eye models with gradient-index lens Alexander V. Goncharov* and Chris Dainty-field schematic eye model, which provides a more realistic description of the optical system of the eye

Dainty, Chris

73

A Comparison of Schematic Processes in Memory for a Television, Text, and Radio Story.  

ERIC Educational Resources Information Center

A study examined the nature of the schematic processes for a story presented in television, text, and radio form and for a story presented to above average and average readers. The story was parsed according to J. M. Mandler and N. S. Johnson's story grammar. Schematic processing was inferred from the pattern of node memorability for the different…

Lehrer, Ariella; Pezdek, Kathy

74

Gender Schematicity, Gender Identity Salience, and Gender-Linked Language Use  

ERIC Educational Resources Information Center

Using self-categorization theory, the effects of sex, chronic gender accessibility (i.e., gender schematicity), and gender identity salience on gender-linked language use in e-mail are examined. Results confirmed interactive effects only. Gender schematic men and women whose gender was salient used typical gender-linked language (e.g., men used…

Palomares, Nicholas A.

2004-01-01

75

Windows: Life after Wire.  

ERIC Educational Resources Information Center

Although wired glass is extremely common in school buildings, the International Building Code adopted new standards that eliminate the use of traditional wired glass in K-12 schools, daycare centers, and athletic facilities. Wired glass breaks easily, and the wires can cause significant injuries by forming dangerous snags when the glass breaks.…

Razwick, Jerry

2003-01-01

76

The Future of Wires  

Microsoft Academic Search

Concern about the performance of wires in scaled technologies has led to research exploring other communication methods. This paper examines wire and gate delays as technologies migrate from 0.18- m to 0.035- m feature sizes to better understand the magni- tude of the wiring problem. Wires that shorten in length as technolo- gies scale have delays that either track gate

RON HO; KENNETH W. MAI; MARK A. HOROWITZ

1999-01-01

77

The future of wires  

Microsoft Academic Search

Concern about the performance of wires wires in scaled technologies has led to research exploring other communication methods. This paper examines wire and gate delays as technologies migrate from 0.18-?m to 0.035-?m feature sizes to better understand the magnitude of the the wiring problem. Wires that shorten in length as technologies scale have delays that either track gate delays or

RON HO; KENNETH W. MAI; MARK A. HOROWITZ

2001-01-01

78

Stretched Wire Mechanics  

SciTech Connect

Stretched wires are beginning to play an important role in the alignment of accelerators and synchrotron light sources. Stretched wires are proposed for the alignment of the 130 meter long LCLS undulator. Wire position technology has reached sub-micron resolution yet analyses of perturbations to wire straightness are hard to find. This paper considers possible deviations of stretched wire from the simple 2-dimensional catenary form.

Bowden, Gordon; /SLAC

2005-09-06

79

Modeling biomass competition and invasion in a schematic wetland  

NASA Astrophysics Data System (ADS)

Plants growing along hydrologic gradients adjust their biomass allocation and distribution in response to interspecific competition. Furthermore, susceptibility of a community to invasion is to some extent mediated by differences in growth habit, including root architecture and canopy hight. With reference to the study of a schematic wetland, the aim of this paper is (1) to test, via numerical modeling, the capacity of native plants to counteract an alien dominant species and cause eco-hydrological shifts of the ecosystem by changing their growth habit (e.g. allocating biomass below ground and by so doing changing the evapotranspiration locally) and (2) to test the impact on biodiversity of management practices that alter nutrient supply. The results demonstrated that unique combinations of vegetation types characterized by different growth habits may lead to different vegetation patterns under the same hydrologic forcing, and additionally, the vegetation patterns may change in response to major hydrological shifts, which could be related to diverse wetland management and restoration practices.

Ursino, N.

2010-08-01

80

When reasoning modifies memory: schematic assimilation triggered by analogical mapping.  

PubMed

Analogical mapping highlights shared relations that link 2 situations, potentially at the expense of information that does not fit the dominant pattern of correspondences. To investigate whether analogical mapping can alter subsequent recognition memory for features of a source analog, we performed 2 experiments with 4-term proportional analogies (A:B::C:D), using problems based on cartoon figures varying on 4 visual dimensions. The source analog (A:B) was encoded before the reasoner was told which dimension was relevant to the analogy. After encoding, the A:B pair disappeared, 1 randomly selected dimension was specified as the basis for an analogical decision, and the target (C:D) was presented. A decision about the validity of the analogy was then made, after which memory for the A:B pair was assessed by a recognition test. In Experiment 1, we found that participants' recognition memory was reduced for lures involving a feature change on a dimension initially inconsistent with the analogical decision relative to a change on a dimension that had been consistent with it. The results of Experiment 2 revealed that this memory decrement occurred only when the change in the initially inconsistent feature caused the lure to be coherent with the overall schematic pattern of relational correspondences. These findings suggest that analogical reasoning can trigger changes in the memory representation of a source analog stored in memory such that subsequent recognition is guided by a relational schema. PMID:24707788

Vendetti, Michael S; Wu, Aaron; Rowshanshad, Ebi; Knowlton, Barbara J; Holyoak, Keith J

2014-07-01

81

Diagrams of States in Quantum Information: an Illustrative Tutorial  

E-print Network

We present "Diagrams of States", a way to graphically represent and analyze how quantum information is elaborated during the execution of quantum circuits. This introductory tutorial illustrates the basics, providing useful examples of quantum computations: elementary operations in single-qubit, two-qubit and three-qubit systems, immersions of gates on higher dimensional spaces, generation of single and multi-qubit states, procedures to synthesize unitary, controlled and diagonal matrices. To perform the analysis of quantum processes, we directly derive diagrams of states from physical implementations of quantum circuits associated to the processes. Complete diagrams are then rearranged into simplified diagrams, to visualize the overall effects of computations. Conversely, diagrams of states help to conceive new quantum algorithms, by schematically describing desired manipulations of quantum information with intuitive diagrams and then by guessing the equivalent complete diagrams, from which the corresponding quantum circuit is obtained effortlessly. Related examples and analysis of complex algorithms will be provided in future works, for whose comprehension this first tutorial offers the necessary introduction.

Sara Felloni; Alberto Leporati; Giuliano Strini

2009-04-17

82

Cable Bundle Wire Derating  

NASA Technical Reports Server (NTRS)

The allowable operating currents of electrical wiring when used in the space vacuum environment is predominantly determined by the maximum operating temperature of the wire insulation. For Kapton insulated wire this value is 200 C. Guidelines provided in the Goddard Space Flight Center (GSFC) Preferred Parts List (PPL) limit the operating current of wire within vacuum to ensure the maximum insulation temperature is not exceeded. For 20 AWG wire, these operating parameters are: 3.7 amps per wire, bundle of 15 or more wires, 70 C environment, and vacuum of 10(exp -5) torr or less. To determine the behavior and temperature of electrical wire at different operating conditions, a thermal vacuum test was performed on a representative electrical harness of the Hubble Space Telescope (HST) power distribution system. This paper describes the test and the results.

Lundquist, Ray A.; Leidecker, Henning

1998-01-01

83

Cable Bundle Wire Derating  

NASA Technical Reports Server (NTRS)

The allowable operating currents of electrical wiring when used in the space vacuum environment is predominantly determined by the maximum operating temperature of the wire insulation. For Kapton insulated wire this value is 200 C. Guidelines provided in the Goddard Space Flight Center (GSFC) Preferred Parts List (PPL) limit the operating current of wire within vacuum to ensure the maximum insulation temperature is not exceeded. For 20 AWG wire, these operating parameters are: (1) 3.7 amps per wire; (2) bundle of 15 or more wires; (3) 70 C environment: and (4) vacuum of 10(exp -5) torr or less. To determine the behavior and temperature of electrical wire at different operating conditions, a thermal vacuum test was performed on a representative electrical harness of the Hubble Space Telescope (HST) power distribution system. This paper describes the test and the results.

Lundquist, Ray A.; Leidecker, Henning

1998-01-01

84

Large Wire Strain Gauges  

NASA Technical Reports Server (NTRS)

Wires yield data on average strains over distances ranging from inches to many feet. Long constantan wires used to measure average strains over distances characteristic of vehicles or buildings. Connected in bridge circuit, wires measure strain accurately within 1 percent, and linearly, within 0.1 percent. Wires stretch as much as 0.15 percent and still return to zero residual strain after release.

Bryner, B. D.

1987-01-01

85

From the schematic to the symbolic: the radical possibilities of the imagination in Kant's third Critique  

E-print Network

In this thesis it is argued that Kant's Copernican turn depends on his doctrine of the imagination, and that by understanding the role of imagination as symbolic rather than schematic, the resources are provided to show that his critical philosophy...

Camp, Ty D.

2010-01-16

86

Slide the wire  

NSDL National Science Digital Library

The animation shows a top view of four wires in a conducting loop and a galvanometer. Determine the direction of the magnetic field, Bz(x), passing through the wires at various postions by click-dragging the black wire back and forth and observing the galvanometer reading.

Wolfgang Christian

87

Controlled localized buckling responses of orthodontic arch wires.  

PubMed

The orthodontic arch wire is often activated locally, in transverse bending and/or longitudinal torsion, to engage an individual malaligned tooth. Arch wires with substantial flexibilities and elastic ranges in bending are available. Several clinical reports of distal displacements of molars with appliances activated by locally buckling the arch wire have appeared in the recent published literature. This article contains an explanation of buckling or "column" action and the postbuckling response of a wire, and a report of the results of a controlled, in-vitro study of a sample of 256 wire segments subjected to activation-deactivation, buckling-postbuckling-unbuckling cycles. Continuous force-displacement diagrams were obtained from mechanical tests run at oral temperature. Four orthodontics-relevant, mechanical characteristics were quantified from each diagram, and each specimen was subjected to posttest evaluation for inelastic behavior. Although the deformation of the buckled wire is, in fact, bending, the force-displacement diagrams obtained differed substantially from their familiar counterparts generated in transverse bending. Judging from the force magnitudes induced as the deactivation half-cycles commenced as well as the deactivation rates, not all of the 8 wires seem to be clinically suitable for activation initiated by buckling. Magnitudes of springback were substantial from activations as large as 6 mm, and only 2 of the 8 wires exhibited full deactivations less than 80% of their activating displacements. This relatively new mode of arch wire activation that enables delivery to the dentition of mesiodistal pushing forces has substantial potential for clinical application from several biomechanical standpoints. PMID:10474103

Nikolai, R J; Chung, A Y

1999-09-01

88

Aesthetics of Class Diagrams  

Microsoft Academic Search

Visualization of object-oriented programs by class dia- grams is a widely used technique. So far no commonly agreed aesthetic criteria have been recorded in order to standardize and measure the quality of class diagrams. In this paper we focus on UML class diagrams, the standard notation for class diagrams in software engineering. We propose some aesthetic criteria which reflect the

Holger Eichelberger

2002-01-01

89

AFM Diagram Quiz  

NSDL National Science Digital Library

This exercise should be used after you think students know what AFM diagrams are and how they work. This is sort of a quiz - to see if they can properly interpret the diagrams. There is no point moving on to real projects that involve AFM diagrams if the students don't understand the basics.

Dexter Perkins

90

Tree Diagrams and Probability  

NSDL National Science Digital Library

This lesson is designed to develop students' ability to create tree diagrams and figure probabilities of events based on those diagrams. This lesson provides links to discussions and activities related to tree diagrams as well as suggested ways to work them into the lesson. Finally, the lesson provides links to follow-up lessons designed for use in succession with the current one.

2011-01-20

91

Phase Equilibria Diagrams Database  

National Institute of Standards and Technology Data Gateway

SRD 31 NIST/ACerS Phase Equilibria Diagrams Database (PC database for purchase)   The Phase Equilibria Diagrams Database contains commentaries and more than 21,000 diagrams for non-organic systems, including those published in all 21 hard-copy volumes produced as part of the ACerS-NIST Phase Equilibria Diagrams Program (formerly titled Phase Diagrams for Ceramists): Volumes I through XIV (blue books); Annuals 91, 92, 93; High Tc Superconductors I & II; Zirconium & Zirconia Systems; and Electronic Ceramics I. Materials covered include oxides as well as non-oxide systems such as chalcogenides and pnictides, phosphates, salt systems, and mixed systems of these classes.

92

A Diagramming Software for UML Class Diagrams  

Microsoft Academic Search

\\u000a UML diagrams have become increasingly important in the engineering and reengineering processes for software systems. Of particular\\u000a interest are UML class diagrams whose purpose is to display class hierarchies (generalizations), associations, aggregations,\\u000a and compositions in one picture. The combination of hierarchical and non-hierarchical relations poses a special challenge\\u000a to a graph layout tool.

Carsten Gutwengerl; Michael Jünger; Karsten Kleinl; Joachim Kupkel; Sebastian Leipert; Petra Mutzel

93

Servo Motor Diagramming and Wiring Lab (Instructor Guide)  

NSDL National Science Digital Library

This lab activity was completed as part of an NSF-funded externship program administered by the High Tech Workforce Initiative at Maricopa Community Colleges. Students will apply their knowledge of electrical power, servo control systems and servo motor properties to real-world scenarios. This lab is part of a servo systems course in an Industrial Operations Technology AAS program, using Amatrol curriculum and equipment. It can be done in conjunction with, or as an adaptation or replacement of, Lab Experiments 4-2 and 4-3 in the Amatrol Electro Servo Learning System materials.

Perry, Clyde

94

Plucker environments, wiring and tiling diagrams, and weakly separated setsystems  

E-print Network

of Economics and Mathematics of the RAS, 47, Nakhimovskii Prospect, 117418 Moscow, Russia; emails: danilov, Prospect 60 Let Oktyabrya, 117312 Moscow, Russia; email: sasha@cs.isa.ru. 1 #12; Such a basis does exist

95

An energy-distribution strategy in fast-cutting wire EDM  

Microsoft Academic Search

The technical requirements of fast-cutting wire EDM are revealed in this paper. In addition to high input pulse energy, fast cutting (cutting speed > 200 mm2\\/min) without damaging the electrode wire needs a high energy efficiency for maintaining a stable fast-cutting process and moderate wire temperature. Based on a synthesis of experimental results and pulse energy analysis, an energy-distribution diagram

Y. F. Luo

1995-01-01

96

Thin wire pointing method  

NASA Technical Reports Server (NTRS)

A method is described for forming sharp tips on thin wires, in particular phosphor bronze wires of diameters such as one-thousandth inch used to contact micron size Schottky barrier diodes, which enables close control of tip shape and which avoids the use of highly toxic solutions. The method includes dipping an end of a phosphor bronze wire into a dilute solution of sulfamic acid and applying a current through the wire to electrochemically etch it. The humidity in the room is controlled to a level of less than 50%, and the voltage applied between the wire and another electrode in the solutions is a half wave rectified voltage. The current through the wire is monitored, and the process is stopped when the current falls to a predetermined low level.

Green, G.; Mattauch, R. J. (inventors)

1983-01-01

97

Sintered wire annode  

DOEpatents

A plurality of high atomic number wires are sintered together to form a porous rod that is parted into porous disks which will be used as x-ray targets. A thermally conductive material is introduced into the pores of the rod, and when a stream of electrons impinges on the sintered wire target and generates x-rays, the heat generated by the impinging x-rays is removed by the thermally conductive material interspersed in the pores of the wires.

Falce, Louis R. (Surprise, AZ); Ives, R. Lawrence (Saratoga, CA)

2007-12-25

98

Venn Diagram Shape Sorter  

NSDL National Science Digital Library

In this activity, students practice placing big and small shapes into Venn diagrams depending on the rules of the diagram. Students can either specify these rules or have the applet assign the rules so they can try to figure them out by placing shapes in the diagram. This activity allows students to explore Venn diagrams and the terms associated with set theory. This activity includes supplemental materials, including background information about the topics covered, a description of how to use the application, and exploration questions for use with the java applet.

2010-01-01

99

Wire-inhomogeneity detector  

DOEpatents

A device for uncovering imperfections in electrical conducting wire, particularly superconducting wire, by detecting variations in eddy currents. Eddy currents effect the magnetic field in a gap of an inductor, contained in a modified commercial ferrite core, through which the wire being tested is passed. A small increase or decrease in the amount of conductive material, such as copper, in a fixed cross section of wire will unbalance a bridge used to measure the impedance of the inductor, tripping a detector and sounding an alarm.

Gibson, G.H.; Smits, R.G.; Eberhard, P.H.

1982-08-31

100

Inspection of fine wires simplified by capillary tube wire holder  

NASA Technical Reports Server (NTRS)

Capillary tube wire holder provides a mount for fine wires for photomicrographs. The holder is mounted in a stainless steel tube and cast in a transparent casting material. It protects and permits easy location of the wire.

Raphael, H. A.

1965-01-01

101

Wire Array Photovoltaics  

NASA Astrophysics Data System (ADS)

Over the past five years, the cost of solar panels has dropped drastically and, in concert, the number of installed modules has risen exponentially. However, solar electricity is still more than twice as expensive as electricity from a natural gas plant. Fortunately, wire array solar cells have emerged as a promising technology for further lowering the cost of solar. Si wire array solar cells are formed with a unique, low cost growth method and use 100 times less material than conventional Si cells. The wires can be embedded in a transparent, flexible polymer to create a free-standing array that can be rolled up for easy installation in a variety of form factors. Furthermore, by incorporating multijunctions into the wire morphology, higher efficiencies can be achieved while taking advantage of the unique defect relaxation pathways afforded by the 3D wire geometry. The work in this thesis shepherded Si wires from undoped arrays to flexible, functional large area devices and laid the groundwork for multijunction wire array cells. Fabrication techniques were developed to turn intrinsic Si wires into full p-n junctions and the wires were passivated with a-Si:H and a-SiNx:H. Single wire devices yielded open circuit voltages of 600 mV and efficiencies of 9%. The arrays were then embedded in a polymer and contacted with a transparent, flexible, Ni nanoparticle and Ag nanowire top contact. The contact connected >99% of the wires in parallel and yielded flexible, substrate free solar cells featuring hundreds of thousands of wires. Building on the success of the Si wire arrays, GaP was epitaxially grown on the material to create heterostructures for photoelectrochemistry. These cells were limited by low absorption in the GaP due to its indirect bandgap, and poor current collection due to a diffusion length of only 80 nm. However, GaAsP on SiGe offers a superior combination of materials, and wire architectures based on these semiconductors were investigated for multijunction arrays. These devices offer potential efficiencies of 34%, as demonstrated through an analytical model and optoelectronic simulations. SiGe and Ge wires were fabricated via chemical-vapor deposition and reactive ion etching. GaAs was then grown on these substrates at the National Renewable Energy Lab and yielded ns lifetime components, as required for achieving high efficiency devices.

Turner-Evans, Dan

102

PHASE DIAGRAMS Phase Rule  

E-print Network

diagram demarcates regions of existence of various phases. This is similar to a map which demarcates regions based on political, geographical, ecological etc. criteria. Phase diagrams are maps* Thorough) are extensively used in materials science and will be considered in detail in this chapter. Also, we shall

Subramaniam, Anandh

103

Xilinx State Diagram  

E-print Network

Xilinx State Diagram Tutorial Department of Electrical and Computer Engineering State University of New York ­ New Paltz © Fall 2006 Baback Izadi #12;Start a new Project Next. #12;This opens the New Project Dialog box. Click on New Source. Select State Diagram and give

Izadi, Baback

104

Wire Weight with Housing  

USGS Multimedia Gallery

Wire weight is lowered to water surface to measure stage at a site. Levels are made to the wire weights elevation from known benchmarks to ensure correct readings. In the background there is housing protected with dikes along the Missouri River in Mandan, ND....

105

Imagination Visualized in Wire.  

ERIC Educational Resources Information Center

Describes an art lesson achieved with a Very Special Artist (VSA) in residence for sixth- and seventh-grade students in which they created wire sculptures. Discusses how the VSA taught the students. Includes a list of art materials and characteristics of wire. (CMK)

Skophammer, Karen

2003-01-01

106

Commercial and Industrial Wiring.  

ERIC Educational Resources Information Center

This module is the third in a series of three wiring publications, includes additional technical knowledge and applications required for job entry in the commercial and industrial wiring trade. The module contains 15 instructional units that cover the following topics: blueprint reading and load calculations; tools and equipment; service;…

Kaltwasser, Stan; Flowers, Gary

107

The geometry of polynomial diagrams  

E-print Network

In this paper we introduce the concept of polynomial diagrams and its area for special polynomials.We study the properties of polynomial area diagrams. The formula for the area of an arbitrary polynomial diagram.

Maksim Alennikov

2015-02-18

108

Next Generation Wiring  

NASA Technical Reports Server (NTRS)

Wiring is a major operational component on aerospace hardware that accounts for substantial weight and volumetric space. Over time wire insulation can age and fail, often leading to catastrophic events such as system failure or fire. The next generation of wiring must be reliable and sustainable over long periods of time. These features will be achieved by the development of a wire insulation capable of autonomous self-healing that mitigates failure before it reaches a catastrophic level. In order to develop a self-healing insulation material, three steps must occur. First, methods of bonding similar materials must be developed that are capable of being initiated autonomously. This process will lead to the development of a manual repair system for polyimide wire insulation. Second, ways to initiate these bonding methods that lead to materials that are similar to the primary insulation must be developed. Finally, steps one and two must be integrated to produce a material that has no residues from the process that degrades the insulating properties of the final repaired insulation. The self-healing technology, teamed with the ability to identify and locate damage, will greatly improve reliability and safety of electrical wiring of critical systems. This paper will address these topics, discuss the results of preliminary testing, and remaining development issues related to self-healing wire insulation.

Medelius, Petro; Jolley, Scott; Fitzpatrick, Lilliana; Vinje, Rubiela; Williams, Martha; Clayton, LaNetra; Roberson, Luke; Smith, Trent; Santiago-Maldonado, Edgardo

2007-01-01

109

Science Highlight January 2012 Figure 1. a, Schematic of the "solution-shearing" printing  

E-print Network

. Copyright Nature Publishing Group 2011. Enhanced Charge Transport in Printed Small Organic Semiconductor to stabilized strain formation in small molecule organic materials. A new printing technique was recently Science Highlight ­ January 2012 Figure 1. a, Schematic of the "solution-shearing" printing

Wechsler, Risa H.

110

16 CFR Figure 3 to Subpart A of... - Flooring Radiant Tester Schematic Side Elevation  

Code of Federal Regulations, 2014 CFR

16 ? Commercial Practices ? 2 ? 2014-01-01 ? 2014-01-01 ? false ? Flooring Radiant Tester Schematic Side Elevation ? 3 ? Figure 3 to Subpart A of Part 1209 ? Commercial Practices ? CONSUMER PRODUCT SAFETY COMMISSION ? CONSUMER PRODUCT SAFETY ACT REGULATIONS ? INTERIM SAFETY STANDARD FOR...

2014-01-01

111

A Schematic for Focusing on Youth in Investigations of Community Design and Physical Activity  

E-print Network

A Schematic for Focusing on Youth in Investigations of Community Design and Physical Activity Kevin to address special considerations for youth in a relatively new area of physical activity research. After reviewing the urgent need for novel approaches to increasing physical activity, the growing interest

Levinson, David M.

112

2012 Changing Arctic Ocean 506E/497E -Lecture 7 -Woodgate Schematic Surface and Atlantic Circulation  

E-print Network

2012 Changing Arctic Ocean 506E/497E - Lecture 7 - Woodgate 1 Schematic Surface and Atlantic (Aagaard, 1981) #12;2012 Changing Arctic Ocean 506E/497E - Lecture 7 - Woodgate 2 Temp Fresh Salty ADD COLD instead ­ no CHL in Eurasian Basin #12;2012 Changing Arctic Ocean 506E/497E - Lecture 7 - Woodgate 3

Washington at Seattle, University of

113

How-To Design Electronics Modules and Use EAGLE for Schematic and Layout  

E-print Network

How-To Design Electronics Modules and Use EAGLE for Schematic and Layout Biorobotics and Locomotion Lab by Emily McAdams with Jason Cortell, 2009 Motivation A new electronics system was at the core of the overhaul of Ranger. The new electronics design was conceptualized at a high-level as a "nervous system

Ruina, Andy L.

114

Fig. 2. Schematic of (a) transconductor and (b) current-commutating passive mixer.  

E-print Network

(a) (b) Fig. 2. Schematic of (a) transconductor and (b) current- commutating passive mixer. Fig. 1 a scalable frequency response property of FIR filter. The FIR filter, followed by the transconductor stage noise amplifier (LNA) and is amplified. The amplified voltage signal is fed to the transconductor

Nam, Sangwook

115

Recognition of Schematic Facial Displays of Emotion in Parents of Children with Autism  

ERIC Educational Resources Information Center

Performance on an emotional labeling task in response to schematic facial patterns representing five basic emotions without the concurrent presentation of a verbal category was investigated in 40 parents of children with autism and 40 matched controls. "Autism fathers" performed worse than "autism mothers," who performed worse than controls in…

Palermo, Mark T.; Pasqualetti, Patrizio; Barbati, Giulia; Intelligente, Fabio; Rossini, Paolo Maria

2006-01-01

116

Re-Using Schematic Grasping Policies Robert Platt, Roderic A. Grupen  

E-print Network

on whether a humanoid robot should use its left or right hand and whether an over-hand or under-hand graspRe-Using Schematic Grasping Policies Robert Platt, Roderic A. Grupen Laboratory for Perceptual@ou.edu Abstract-- It can be difficult to generalize the solutions to grasping and manipulation problems because

Fagg, Andrew H.

117

Fig. 1. Schematic of gating operation driven by centrifugal force. (a) shows top view of the  

E-print Network

R1 R2 (a) Pm (b) Fig. 1. Schematic of gating operation driven by centrifugal force. (a) shows top-expanding opening. Liquid pressure at the meniscus is Pm. DESIGN ANALYSES OF CAPILLARY BURST VALVES IN CENTRIFUGAL, Capillary Gating, Centrifugal force, FlumeCAD I. Introduction There is a wide interest in micron

Banerjee, Debjyoti

118

Perceptual Grouping, Not Emotion, Accounts for Search Asymmetries with Schematic Faces  

ERIC Educational Resources Information Center

Several different explanations have been proposed to account for the search asymmetry (SA) for angry schematic faces (i.e., the fact that an angry face target among friendly faces can be found faster than vice versa). The present study critically tested the perceptual grouping account, (a) that the SA is not due to emotional factors, but to…

Becker, Stefanie I.; Horstmann, Gernot; Remington, Roger W.

2011-01-01

119

An automatic generation of schematic maps to display Flight Routes for Air Traffic Controllers: structure and color optimization  

E-print Network

An automatic generation of schematic maps to display Flight Routes for Air Traffic Controllers Aircraft must follow strict Air Traffic Control (ATC) rules. One of these rules is that aircraft haveD picture of a schematic maps view for Air Traffic Control. Second, we propose to investigate

Paris-Sud XI, Université de

120

Orbiter Kapton wire operational requirements and experience  

NASA Technical Reports Server (NTRS)

The agenda of this presentation includes the Orbiter wire selection requirements, the Orbiter wire usage, fabrication and test requirements, typical wiring installations, Kapton wire experience, NASA Kapton wire testing, summary, and backup data.

Peterson, R. V.

1994-01-01

121

LimeWire  

NSDL National Science Digital Library

LimeWire, version 2.1.1, is a software package that enables individuals to search for and share computer files with anyone on the Internet. This software lets you log on to the Gnutella peer-to-peer network and contains a list of MP3's, digital home movies, documents, and other software. Furthermore, it allows you to chat with other LimeWire users. This latest version incorporates several performance improvements, including enhanced tools for handling downloads from slow servers and bad connections. LimeWire is written in Java and will run on Windows, Macintosh, Linux, Sun, and other computing platforms.

122

Diagram of Computer Keyboard  

NSDL National Science Digital Library

This is a line drawing of a Windows PC keyboard complete with labels for each key. This diagram is used on tests where students are asked to circle the keys that would be used to perform various functions.

Dr. Charles Ward

123

Satellite Venn Diagram  

NSDL National Science Digital Library

In this activity, students will use the background information they have read to organize a list of sources and objects, putting each item given in the appropriate part of the Venn diagram, depending on which instrument will study that item. Students will demonstrate their understanding of spectra, astronomical observations, and have read the background material on Chandra, Astro-E and the microcalorimeter, and the Constellation X-ray Observatory. They will write a five minute summary of the capabilities of the three observatories, based on their Venn diagram. Students' understanding of the background material will be evaluated based on the accuracy of their Venn diagrams and the interpretation of the information on the Venn diagrams from their closure paper.

124

Phase Diagrams in Vivo  

NSDL National Science Digital Library

This activity uses three experiments for students to construct a phase diagram; the experiments have been videotaped and can be seen online. The purpose of this laboratory as designed is to gain familiarity with simple phase diagrams, their construction, and their applications to the understanding of geological and environmental problems. Subsidiary objectives include development of strategies for data processing including evaluation of assumptions and sources of errors, as well as honing of computer, spreadsheet, presentation (tabular and graphical), and report writing skills.

125

Weyl Card Diagrams  

E-print Network

To capture important physical properties of a spacetime we construct a new diagram, the card diagram, which accurately draws generalized Weyl spacetimes in arbitrary dimensions by encoding their global spacetime structure, singularities, horizons, and some aspects of causal structure including null infinity. Card diagrams draw only non-trivial directions providing a clearer picture of the geometric features of spacetimes as compared to Penrose diagrams, and can change continuously as a function of the geometric parameters. One of our main results is to describe how Weyl rods are traversable horizons and the entirety of the spacetime can be mapped out. We review Weyl techniques and as examples we systematically discuss properties of a variety of solutions including Kerr-Newman black holes, black rings, expanding bubbles, and recent spacelike-brane solutions. Families of solutions will share qualitatively similar cards. In addition we show how card diagrams not only capture information about a geometry but also its analytic continuations by providing a geometric picture of analytic continuation. Weyl techniques are generalized to higher dimensional charged solutions and applied to generate perturbations of bubble and S-brane solutions by Israel-Khan rods. This paper is a condensed and simplified presentation of the card diagrams in hep-th/0409070.

Gregory C. Jones; John E. Wang

2005-06-02

126

Wire polarizers for microwave antennas  

Microsoft Academic Search

The paper deals with free space polarizers that are essentially planar, consisting of dielectric sheets and grids of parallel conducting wires. Network models are used in the analysis of wire grid structures. An expression for the equivalent wire grid reactance is studied, including the general case of obliquely incident plane waves. The influence of dielectric interfaces close to the wire

L. G. Josefsson

1978-01-01

127

Jupiter Torus Diagram  

NASA Technical Reports Server (NTRS)

A cut-away schematic of Jupiter's space environment shows magnetically trapped radiation ions (in red), the neutral gas torus of the volcanic moon Io (green) and the newly discovered neutral gas torus of the moon Europa (blue). The white lines represent magnetic field lines.

Energetic neutral atoms (ENA) are emitted from the Europa torus regions because of the interaction between the trapped ions and the neutral gases. The Magnetospheric Imaging Instrument on NASA's Cassini spacecraft imaged those energetic neutral atoms in early 2001 during Cassini's flyby of Jupiter. Energetic neutral atoms also come from Jupiter when radiation ions impinge onto Jupiter's upper atmosphere.

Cassini is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages Cassini for NASA's Office of Space Science, Washington, D.C.

2003-01-01

128

IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. 28, NO. 2, FEBRUARY 2009 193 A Novel Wire-Density-Driven Full-Chip Routing  

E-print Network

.1109/TCAD.2008.2009156 Fig. 1. Schematic of the CMP polisher. polishing pad and the wafer. After CMP, FEBRUARY 2009 193 A Novel Wire-Density-Driven Full-Chip Routing System for CMP Variation Control Huang--As nanometer technology advances, the post chemical­mechanical polishing (CMP) topography variation control

Chang, Yao-Wen

129

30 CFR 75.1003 - Insulation of trolley wires, trolley feeder wires and bare signal wires; guarding of trolley...  

Code of Federal Regulations, 2013 CFR

...Resources 1 2013-07-01 2013-07-01 false Insulation of trolley wires, trolley feeder wires and bare signal wires...MINES Trolley Wires and Trolley Feeder Wires § 75.1003 Insulation of trolley wires, trolley feeder wires and bare signal...

2013-07-01

130

30 CFR 77.1802 - Insulation of trolley wires, trolley feeder wires and bare signal wires; guarding of trolley...  

Code of Federal Regulations, 2013 CFR

...Resources 1 2013-07-01 2013-07-01 false Insulation of trolley wires, trolley feeder wires and bare signal wires...MINES Trolley Wires and Trolley Feeder Wires § 77.1802 Insulation of trolley wires, trolley feeder wires and bare signal...

2013-07-01

131

30 CFR 77.1802 - Insulation of trolley wires, trolley feeder wires and bare signal wires; guarding of trolley...  

Code of Federal Regulations, 2014 CFR

...Resources 1 2014-07-01 2014-07-01 false Insulation of trolley wires, trolley feeder wires and bare signal wires...MINES Trolley Wires and Trolley Feeder Wires § 77.1802 Insulation of trolley wires, trolley feeder wires and bare signal...

2014-07-01

132

30 CFR 77.1802 - Insulation of trolley wires, trolley feeder wires and bare signal wires; guarding of trolley...  

Code of Federal Regulations, 2010 CFR

...Resources 1 2010-07-01 2010-07-01 false Insulation of trolley wires, trolley feeder wires and bare signal wires...MINES Trolley Wires and Trolley Feeder Wires § 77.1802 Insulation of trolley wires, trolley feeder wires and bare signal...

2010-07-01

133

30 CFR 75.1003 - Insulation of trolley wires, trolley feeder wires and bare signal wires; guarding of trolley...  

Code of Federal Regulations, 2012 CFR

...Resources 1 2012-07-01 2012-07-01 false Insulation of trolley wires, trolley feeder wires and bare signal wires...MINES Trolley Wires and Trolley Feeder Wires § 75.1003 Insulation of trolley wires, trolley feeder wires and bare signal...

2012-07-01

134

30 CFR 75.1003 - Insulation of trolley wires, trolley feeder wires and bare signal wires; guarding of trolley...  

Code of Federal Regulations, 2011 CFR

...Resources 1 2011-07-01 2011-07-01 false Insulation of trolley wires, trolley feeder wires and bare signal wires...MINES Trolley Wires and Trolley Feeder Wires § 75.1003 Insulation of trolley wires, trolley feeder wires and bare signal...

2011-07-01

135

30 CFR 75.1003 - Insulation of trolley wires, trolley feeder wires and bare signal wires; guarding of trolley...  

Code of Federal Regulations, 2014 CFR

...Resources 1 2014-07-01 2014-07-01 false Insulation of trolley wires, trolley feeder wires and bare signal wires...MINES Trolley Wires and Trolley Feeder Wires § 75.1003 Insulation of trolley wires, trolley feeder wires and bare signal...

2014-07-01

136

30 CFR 77.1802 - Insulation of trolley wires, trolley feeder wires and bare signal wires; guarding of trolley...  

Code of Federal Regulations, 2011 CFR

...Resources 1 2011-07-01 2011-07-01 false Insulation of trolley wires, trolley feeder wires and bare signal wires...MINES Trolley Wires and Trolley Feeder Wires § 77.1802 Insulation of trolley wires, trolley feeder wires and bare signal...

2011-07-01

137

30 CFR 77.1802 - Insulation of trolley wires, trolley feeder wires and bare signal wires; guarding of trolley...  

Code of Federal Regulations, 2012 CFR

...Resources 1 2012-07-01 2012-07-01 false Insulation of trolley wires, trolley feeder wires and bare signal wires...MINES Trolley Wires and Trolley Feeder Wires § 77.1802 Insulation of trolley wires, trolley feeder wires and bare signal...

2012-07-01

138

30 CFR 75.1003 - Insulation of trolley wires, trolley feeder wires and bare signal wires; guarding of trolley...  

Code of Federal Regulations, 2010 CFR

...Resources 1 2010-07-01 2010-07-01 false Insulation of trolley wires, trolley feeder wires and bare signal wires...MINES Trolley Wires and Trolley Feeder Wires § 75.1003 Insulation of trolley wires, trolley feeder wires and bare signal...

2010-07-01

139

Weyl card diagrams  

SciTech Connect

To capture important physical properties of a spacetime we construct a new diagram, the card diagram, which accurately draws generalized Weyl spacetimes in arbitrary dimensions by encoding their global spacetime structure, singularities, horizons, and some aspects of causal structure including null infinity. Card diagrams draw only nontrivial directions providing a clearer picture of the geometric features of spacetimes as compared to Penrose diagrams, and can change continuously as a function of the geometric parameters. One of our main results is to describe how Weyl rods are traversable horizons and the entirety of the spacetime can be mapped out. We review Weyl techniques and as examples we systematically discuss properties of a variety of solutions including Kerr-Newman black holes, black rings, expanding bubbles, and recent spacelike-brane solutions. Families of solutions will share qualitatively similar cards. In addition we show how card diagrams not only capture information about a geometry but also its analytic continuations by providing a geometric picture of analytic continuation. Weyl techniques are generalized to higher dimensional charged solutions and applied to generate perturbations of bubble and S-brane solutions by Israel-Khan rods.

Jones, Gregory [Department of Physics, Harvard University, Cambridge, Massachusetts 02138 (United States); Wang, John E. [Department of Physics, Harvard University, Cambridge, Massachusetts 02138 (United States); Department of Physics, National Taiwan University, Taipei 106, Taiwan (China); National Center for Theoretical Sciences, Taiwan, National Taiwan University, Taipei 10617, Taiwan (China)

2005-06-15

140

Recognition of schematic facial displays of emotion in parents of children with autism.  

PubMed

Performance on an emotional labeling task in response to schematic facial patterns representing five basic emotions without the concurrent presentation of a verbal category was investigated in 40 parents of children with autism and 40 matched controls. 'Autism fathers' performed worse than 'autism mothers', who performed worse than controls in decoding displays representing sadness or disgust. This indicates the need to include facial expression decoding tasks in genetic research of autism. In addition, emotional expression interactions between parents and their children with autism, particularly through play, where affect and prosody are 'physiologically' exaggerated, may stimulate development of social competence. Future studies could benefit from a combination of stimuli including photographs and schematic drawings, with and without associated verbal categories. This may allow the subdivision of patients and relatives on the basis of the amount of information needed to understand and process social-emotionally relevant information. PMID:16908479

Palermo, Mark T; Pasqualetti, Patrizio; Barbati, Giulia; Intelligente, Fabio; Rossini, Paolo Maria

2006-07-01

141

Advanced EMU Portable Life Support System (PLSS) and Shuttle/ISS EMU Schematics, a Comparison  

NASA Technical Reports Server (NTRS)

In order to be able to adapt to differing vehicle interfaces such as suitport and airlock, adjust to varying vehicle pressure schedules, tolerate lower quality working fluids, and adapt to differing suit architectures as dictated by a range of mission architectures, the next generation space suit requires more adaptability and robustness over that of the current Shuttle/ISS Extra-vehicular Mobility Unit (EMU). While some features have been added to facilitate interfaces to differing vehicle and suit architectures, the key performance gains have been made via incorporation of new technologies such as the variable pressure regulators, Rapid Cycle Amine swing-bed, and Suit Water Membrane Evaporator. This paper performs a comparison between the Shuttle/ISS EMU PLSS schematic and the Advanced EMU PLSS schematic complete with a discussion for each difference.

Campbell, Colin

2012-01-01

142

Scrutinizing UML Activity Diagrams  

NASA Astrophysics Data System (ADS)

Building an information system involves two processes: conceptual modeling of the “real world domain” and designing the software system. Object-oriented methods and languages (e.g., UML) are typically used for describing the software system. For the system analysis process that produces the conceptual description, object-oriented techniques or semantics extensions are utilized. Specifically, UML activity diagrams are the “flow charts” of object-oriented conceptualization tools. This chapter proposes an alternative to UML activity diagrams through the development of a conceptual modeling methodology based on the notion of flow.

Al-Fedaghi, Sabah

143

Diblock copolymer phase diagram  

NSDL National Science Digital Library

Adaptation of the Matsen and Bates BCP phase diagram predicted using Mean-field Theory. * Matsen MW, Bates FS, ''http://pubs3.acs.org/acs/journals/doilookup?in_doi=10.1021/ma951138i Unifying weak- and strong-segregation block copolymer theories. Diblock copolymer phase diagram as calculated using Mean-field Theory by Matsen and Bates, where fA is the Block fraction, ? is the Flory-Huggins Chi Parameter, and N is the length of the block.

Iacovella, Christopher R.

2006-11-20

144

Method for automated entry of a dental chart schematic using a computer card reader.  

PubMed

A method was developed in which a dental chart schematic, printed on a standard 80-column computer card, could be used to record DMF data for analysis using mark sensing technology. The binary image of each column was read by a standard card reader and this information was used to create a detailed DMF analysis. This method uses readily available technology and could be modified for many research purposes. PMID:6958411

Cohen, M E; Cecil, J C

1982-10-01

145

Ratings of gender appropriateness of sports participation: Effects of gender-based schematic processing  

Microsoft Academic Search

The domain of sports and physical activity has traditionally been considered to be appropriate for men and not compatible with the feminine role. Because gender-based schematic processing has been shown to affect attitudes and behavior, there might be differences in the categorization of sports as masculine or feminine, between sex-typed and non-sex-typed individuals. The findings in this study, including 104

Nathalie Koivula

1995-01-01

146

Isospin-symmetry-breaking corrections to superallowed Fermi {beta} decay: Formalism and schematic models  

SciTech Connect

We study the formalism to include isospin-symmetry-breaking corrections when extracting the up-down Cabibbo-Kobayashi-Maskawa matrix element from superallowed 0{sup +}{yields}0{sup +} nuclear {beta} decay. We show that there are no first-order isospin-symmetry-breaking corrections to the relevant nuclear matrix elements. We find corrections to the treatment of Towner and Hardy, and assess these using schematic models of increasing complexity.

Miller, G. A. [Department of Physics, University of Washington, Seattle, Washington 98195-1560 (United States); Schwenk, A. [TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 (Canada)

2008-09-15

147

Policy capturing versus a schematic interpretation on rater reaction to applicant resumes  

E-print Network

Model Mean Importance Rati nqs of Full Model. Multiple Regression of Importance Ratings. 44 45 47 48 50 52 56 57 CHAPTER I INTRODUCTION In terms of the evaluation of raters' reactions to resumes, two discrepant theoretical positions may...POLICY CAPTURING VERSUS A SCHEMATIC INTERPRETATION ON RATER REACTION TO APPLICANT RESUMES A Thesis by TERESE YOLANDE CARDENAS Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirements for the degree...

Cardenas, Terese Yolande

1985-01-01

148

Wiring up, reaching out.  

PubMed

Taking another step in our Most Wired project, we conducted cyber-interviews with health plans and asked them to tell us just how wired they are. Find out how well they connect to members and employers, which HR and educational services they offer online, and whether they do business with doctors and hospitals electronically. Plus: profiles of major info tech undertakings at six health plans. They range from a $78,000 intranet to a $4 million data warehouse. But while the six projects differ in cost, they overlap in purpose: putting more information into the hands of doctors, hospitals, employers, and consumers. In doing that, they show what being wired is all about. PMID:10404661

Serb, C

1999-05-01

149

Wire brush fastening device  

SciTech Connect

A fastening device is provided which is a variation on the conventional nut and bolt. The bolt has a longitudinal axis and threading helically affixed thereon along the longitudinal axis. A nut having a bore extending therethrough is provided. The bore of the nut has a greater diameter than the diameter of the bolt so the bolt can extend through the bore. An array of wire bristles are affixed within the bore so as to form a brush. The wire bristles extend inwardly from the bore and are constructed and arranged of the correct size, length and stiffness to guide the bolt within the bore and to restrain the bolt within the bore as required. A variety of applications of the wire brush nut are disclosed, including a bolt capture device and a test rig apparatus.

Meigs, R.A.

1993-08-31

150

Wire brush fastening device  

DOEpatents

A fastening device is provided which is a variation on the conventional nut and bolt. The bolt has a longitudinal axis and threading helically affixed thereon along the longitudinal axis. A nut having a bore extending therethrough is provided. The bore of the nut has a greater diameter than the diameter of the bolt so the bolt can extend through the bore. An array of wire bristles are affixed within the bore so as to form a brush. The wire bristles extend inwardly from the bore and are constructed and arranged of the correct size, length and stiffness to guide the bolt within the bore and to restrain the bolt within the bore as required. A variety of applications of the wire brush nut are disclosed, including a bolt capture device and a test rig apparatus.

Meigs, Richard A. (East Concord, NY)

1995-01-01

151

Wire brush fastening device  

DOEpatents

A fastening device is provided which is a variation on the conventional nut and bolt. The bolt has a longitudinal axis and threading helically affixed thereon along the longitudinal axis. A nut having a bore extending therethrough is provided. The bore of the nut has a greater diameter than the diameter of the bolt so the bolt can extend through the bore. An array of wire bristles are affixed within the bore so as to form a brush. The wire bristles extend inwardly from the bore and are constructed and arranged of the correct size, length and stiffness to guide the bolt within the bore and to restrain the bolt within the bore as required. A variety of applications of the wire brush nut are disclosed, including a bolt capture device and a test rig apparatus. 13 figs.

Meigs, R.A.

1995-09-19

152

Carbon Cycle Diagram  

NSDL National Science Digital Library

This diagram illustrates some of the most abundant stores of carbon and identifies some of the pathways in the carbon cycle along which carbon is transferred from one form to another. Long-term sinks of carbon are labelled in black; shorter-term fluxes are labelled in purple. Amounts are in billions of tons.

153

Venn Diagrams and Logic  

NSDL National Science Digital Library

This math lesson from Illuminations uses Venn diagrams to illustrate direct, indirect and transitive reasoning. Students will learn the definitions of direct, indirect and transitive reasoning and give examples of each. Several student activity sheets are included. The material is intended for grades 9-12 and should require 2 and a half class periods to complete.

2011-01-04

154

Plagioclase Phase Diagram  

NSDL National Science Digital Library

This is a short exercise aimed at evaluating whether students understand how to interpret the Ab-An phase diagram. If students know what is going on, it takes about 10 minutes to complete. This active learning exercise makes a good break from lecture. It is best done as a group activity.

Dexter Perkins

155

Understanding Network Diagrams.  

ERIC Educational Resources Information Center

A survey of a range of introductory university level textbooks in the social sciences found little use of network diagrams (NDs), i.e., graphic representations of processes, organizations, systems, and mechanisms. NDs can be viewed as a text/picture hybrid medium with titles and captions serving to qualify and identify the meaning and status of…

Waller, Robert

156

Impulse-Momentum Diagrams  

ERIC Educational Resources Information Center

Multiple representations are a valuable tool to help students learn and understand physics concepts. Furthermore, representations help students learn how to think and act like real scientists. These representations include: pictures, free-body diagrams, energy bar charts, electrical circuits, and, more recently, computer simulations and…

Rosengrant, David

2011-01-01

157

One hundred angstrom niobium wire  

NASA Technical Reports Server (NTRS)

Composite of fine niobium wires in copper is used to study the size and proximity effects of a superconductor in a normal matrix. The niobium rod was drawn to a 100 angstrom diameter wire on a copper tubing.

Cline, H. E.; Rose, R. M.; Wulff, J.

1968-01-01

158

49 CFR 234.231 - Fouling wires.  

Code of Federal Regulations, 2010 CFR

...when the train detection circuit is shunted. Installation of a single duplex wire with single plug acting as fouling wires is prohibited. Existing installations having single duplex wires with a single plug for fouling wires may be continued in...

2010-10-01

159

Wire EDM for Refractory Materials  

NASA Technical Reports Server (NTRS)

In an attempt to reduce fabrication time and costs, Wire Electrical Discharge Machine (Wire EDM) method was investigated as tool for fabricating matched blade roots and disk slots. Eight high-strength nickel-base superalloys were used. Computer-controlled Wire EDM technique provided high quality surfaces with excellent dimensional tolerances. Wire EDM method offers potential for substantial reductions in fabrication costs for "hard to machine" alloys and electrically conductive materials in specific high-precision applications.

Zellars, G. R.; Harris, F. E.; Lowell, C. E.; Pollman, W. M.; Rys, V. J.; Wills, R. J.

1982-01-01

160

Wires by Patchy Particles  

NSDL National Science Digital Library

Simulation Software: Glotzer Group Code Simulation Method: Brownian Dynamics A system of 80 spherical particles with two patches at a concentration of 0.20, was run starting at an effectively infinite temperature then instantaneously quenched to a temperature of 0.5. The final equillibrium structure is wires or chains. Simulation Model: United Atom Rigid Body with Lennard-Jones

Zhang, Zhenli

2005-01-31

161

A World without Wires  

ERIC Educational Resources Information Center

The wireless bandwagon is rolling across Mississippi, picking up a fresh load of converts and turning calamity into opportunity. Traditional wired school networks, many of which unraveled during Hurricane Katrina, are giving way to advanced wireless mesh networks that frequently include voice-over-IP (VoIP) capabilities. Vendor funding is helping…

Panettieri, Joseph C.

2006-01-01

162

SPACEWAR WIRE MILITARY SPACE  

E-print Network

TERRORWARS SPACEDAILY TERRADAILY MARSDAILY SPACE TRAVEL SPACEMART SPACE DATABASE Endangered Species WeCHANNELS SPACEWAR WIRE MILITARY SPACE UAV NEWS MILITARY COMMS CYBERWARS MISSILE NEWS RAYGUNS project Nepal jails six soldiers for murder, human rights violations Ex-Peruvian spy chief wants CIA

163

Basic Wiring. Second Edition.  

ERIC Educational Resources Information Center

This guide is designed to assist teachers conducting a foundation course to prepare students for additional courses of training for entry-level employment in either the residential or commercial and industrial wiring trades. Included in the guide are 17 instructional units and the following sections of information for teachers: guidelines in using…

Kaltwasser, Stan; And Others

164

Residential Wiring. Second Edition.  

ERIC Educational Resources Information Center

This guide is designed to assist teachers conducting a course to prepare students for entry-level employment in the residential wiring trade. Included in the guide are six instructional units and the following sections of information for teachers: guidelines in using the unit components; academic and workplace skills classifications and…

Taylor, Mark; And Others

165

Improved wire chamber  

DOEpatents

An improved gas mixture for use with proportional counter devices, such as Geiger-Mueller tubes and drift chambers. The improved gas mixture provides a stable drift velocity while eliminating wire aging caused by prior art gas mixtures. The new gas mixture is comprised of equal parts argon and ethane gas and having approximately 0.25% isopropyl alcohol vapor. 2 figs.

Atac, M.

1987-05-12

166

NewsWire, 2002.  

ERIC Educational Resources Information Center

This document presents the 3 2002 issues of the newsletter "NewsWire," (volume 5). Issue Number One focuses on collaborative Web projects. This issue begins with descriptions of four individual projects: "iEARN"; "Operation RubyThroat"; "Follow the Polar Huskies!"; and "Log in Your Animal Roadkill!" Features that follow include: "Bringing the…

Byrom, Elizabeth, Ed.; Bingham, Margaret, Ed.; Bowman, Gloria, Ed.; Shoemaker, Dan, Ed.

2002-01-01

167

Numerical simulations of heavily polluted fine-grained sediment remobilization using 1D, 1D+, and 2D channel schematization.  

PubMed

This article used various hydrodynamic and sediment transport models to analyze the potential and the limits of different channel schematizations. The main aim was to select and evaluate the most suitable simulation method for fine-grained sediment remobilization assessment. Three types of channel schematization were selected to study the flow potential for remobilizing fine-grained sediment in artificially modified channels. Schematization with a 1D cross-sectional horizontal plan, a 1D+ approach, splitting the riverbed into different functional zones, and full 2D mesh, adopted in MIKE by the DHI modeling suite, was applied to the study. For the case study, a 55-km stretch of the Bílina River, in the Czech Republic, Central Europe, which has been heavily polluted by the chemical and coal mining industry since the mid-twentieth century, was selected. Long-term exposure to direct emissions of toxic pollutants including heavy metals and persistent organic pollutants (POPs) resulted in deposits of pollutants in fine-grained sediments in the riverbed. Simulations, based on three hydrodynamic model schematizations, proved that for events not exceeding the extent of the riverbed profile, the 1D schematization can provide comparable results to a 2D model. The 1D+ schematization can improve accuracy while keeping the benefits of high-speed simulation and low requirements of input DEM data, but the method's suitability is limited by the channel properties. PMID:25687259

Kaiglová, Jana; Langhammer, Jakub; Ji?inec, Petr; Janský, Bohumír; Chalupová, Dagmar

2015-03-01

168

1997 wire development workshop: Proceedings  

SciTech Connect

This conference is divided into the following sections: (1) First Generation Wires I; (2) First Generation Wires II; (3) Coated conductors I; and (4) Coated conductors II. Applications of the superconducting wires include fault current limiters, superconducting motors, transformers, and power transmission lines.

NONE

1997-04-01

169

An Introduction to Tree Diagrams  

NSDL National Science Digital Library

This brief article describes the use of tree diagrams in calculating probabilities. The author provides examples of how tree diagrams are used to calculate specific probabilities and why the language chosen relates to the operations used to find the probability.

Stu Cork

2014-01-01

170

Linking diagrams for free  

E-print Network

Linking diagrams with path composition are ubiquitous, for example: Temperley-Lieb and Brauer monoids, Kelly-Laplaza graphs for compact closed categories, and Girard's multiplicative proof nets. We construct the category Link=Span(iRel), where iRel is the category of injective relations (reversed partial functions) and show that the aforementioned linkings, as well as Jones-Martin partition monoids, reside inside Link. Path composition, including collection of loops, is by pullback. Link contains the free compact closed category on a self-dual object (hence also the looped Brauer and Temperly-Lieb monoids), and generalises partition monoids with partiality (vertices in no partition) and empty- and infinite partitions. Thus we obtain conventional linking/partition diagrams and their composition "for free", from iRel.

Dominic J. D. Hughes

2008-05-11

171

Wire vibration, bowing, and breakage in wire electrical discharge machining  

NASA Astrophysics Data System (ADS)

This article provides an analysis of the wire electrical discharge machining (EDM) process. The causes of wire vibration, bowing, and breakage are identified. The cross sectional configuration of an eroded wire is derived from basic physics under the assumption that the erosion rate is constant. This configuration is verified experimentally with further explanation as to why numerous experimental studies have yielded different configurations. A computational model has been developed that can evaluate the systematic effects that lead to wire breakage by determining the stress induced by wire erosion and the stress induced by the sparks during the operation of a wire-cutting EDM machine. This model is also capable of determining the extent of wire bowing and vibrations in these machines but only in the frontal direction. The model is supported by data from experiments performed on an AGIECUT 612 wire machine cutting a 10 mm high copper bar with a 0.15 mm brass wire to acquire wire breakage data. The nearly parabolic shape of the bowed wire agrees with the results of other authors making more restrictive assumptions.

Arunachalam, C.; Aulia, M.; Bozkurt, B.; Eubank, P. T.

2001-04-01

172

Hertzsprung-Russell Diagram  

NSDL National Science Digital Library

Authored by Martin Hackworth of Idaho State University, This lab asks students to construct two Hertzsprung-Russell diagrams, one for the Pleiades Cluster and the other for the Trapezium Cluster. Students should then to be able to recognize the evolution process of all stars depending on their mass. The page features objectives, equipment, discussion, procedure, and exercises. The lesson plan is outlined in an understandable format for translation into almost any curriculum. The resource is available in a pdf format.

Hackworth, Martin

173

UML class diagram metrics tool  

Microsoft Academic Search

Many of the object-oriented (OO) metrics that have been proposed over the last decade can be applied to measure internal quality attributes of class diagrams. This paper describes a tool that automates the computation of the important metrics that are applicable to the UML class diagrams. The tool collects information by parsing the XMI format of the class diagram to

Moheb R. Girgis; T. M. Mahmoud; Rehab R. Nour

2009-01-01

174

On web diagrams Jun Murakami  

E-print Network

On web diagrams Jun Murakami Department of Mathematics, Graduate School of Science, Osaka­ tive invariant is defined in the space of web diagrams, and it includes the Casson­ Walker invariant of the mapping class groups. (cf. [9], [10]) 2. Web space 2.1. Web diagram. To explain the universal perturbative

175

Modeling process flow using diagrams  

Microsoft Academic Search

In the practice of process improvement, tools such as the flowchart, the value-stream map (VSM), and a variety of ad hoc variants of such diagrams are commonly used. The purpose of this paper is to present a clear, precise, and consistent framework for the use of such flow diagrams in process improvement projects. The paper finds that traditional diagrams, such

Benjamin Kemper; Jeroen de Mast; Michel Mandjes

2010-01-01

176

Dental Arch Wire  

NASA Technical Reports Server (NTRS)

Straightening teeth is an arduous process requiring months, often years, of applying corrective pressure by means of arch wires-better known as brace-which may have to be changed several times in the course of treatment. A new method has been developed by Dr. George Andreasen, orthodontist and dental scientist at the University of Iowa. The key is a new type of arch wire material, called Nitinol, with exceptional elasticity which helps reduce the required number of brace changes. An alloy of nickel and titanium, Nitinol was originally developed for aerospace applications by the Naval Ordnance Laboratory, now the Naval Surface Weapons Laboratory, White Oaks, Maryland. NASA subsequently conducted additional research on the properties of Nitinol and on procedures for processing the metal.

1979-01-01

177

Superconducting magnet wire  

DOEpatents

A superconducting tape or wire with an improved critical field is formed of alternating layers of a niobium-containing superconductor such as Nb, NbTi, Nb.sub.3 Sn or Nb.sub.3 Ge with a thickness in the range of about 0.5-1.5 times its coherence length, supported and separated by layers of copper with each copper layer having a thickness in the range of about 170-600 .ANG..

Schuller, Ivan K. (Woodridge, IL); Ketterson, John B. (Evanston, IL); Banerjee, Indrajit (San Jose, CA)

1986-01-01

178

Wiring for aerospace applications  

NASA Astrophysics Data System (ADS)

In this paper, the authors summarize the current state of knowledge of arc propagation in aerospace power wiring and efforts by the National Aeronautics and Space Administration (NASA) towards the understanding of the arc tracking phenomena in space environments. Recommendations will be made for additional testing. A database of the performance of commonly used insulating materials will be developed to support the design of advanced high power missions, such as Space Station Freedom and Lunar/Mars Exploration.

Christian, J. L., Jr.; Dickman, J. E.; Bercaw, R. W.; Myers, I. T.; Hammoud, A. N.; Stavnes, M.; Evans, J.

1992-07-01

179

Wire Diffraction Gratings  

NASA Astrophysics Data System (ADS)

In the summer of 1972, I attended the workshop on recreating classic experiments in physics at Barnard College. This was developed by Samuel Devons, and it was a defining experience that set me toward a research career involving early physics teaching apparatus. During the course of the workshop, I became curious about the original diffraction gratings developed by Fraunhofer and built a wire diffraction. A short note about the gratings was published in the American Journal of Physics the next year.2

Greenslade, Thomas B.

2004-02-01

180

Wiring for aerospace applications  

NASA Technical Reports Server (NTRS)

In this paper, the authors summarize the current state of knowledge of arc propagation in aerospace power wiring and efforts by the National Aeronautics and Space Administration (NASA) towards the understanding of the arc tracking phenomena in space environments. Recommendations will be made for additional testing. A database of the performance of commonly used insulating materials will be developed to support the design of advanced high power missions, such as Space Station Freedom and Lunar/Mars Exploration.

Christian, J. L., Jr.; Dickman, J. E.; Bercaw, R. W.; Myers, I. T.; Hammoud, A. N.; Stavnes, M.; Evans, J.

1992-01-01

181

Dual wire welding torch and method  

DOEpatents

A welding torch includes a nozzle with a first welding wire guide configured to orient a first welding wire in a first welding wire orientation, and a second welding wire guide configured to orient a second welding wire in a second welding wire orientation that is non-coplanar and divergent with respect to the first welding wire orientation. A method of welding includes moving a welding torch with respect to a workpiece joint to be welded. During moving the welding torch, a first welding wire is fed through a first welding wire guide defining a first welding wire orientation and a second welding wire is fed through a second welding wire guide defining a second welding wire orientation that is divergent and non-coplanar with respect to the first welding wire orientation.

Diez, Fernando Martinez (Peoria, IL); Stump, Kevin S. (Sherman, IL); Ludewig, Howard W. (Groveland, IL); Kilty, Alan L. (Peoria, IL); Robinson, Matthew M. (Peoria, IL); Egland, Keith M. (Peoria, IL)

2009-04-28

182

How Much Information Do You Need? Schematic Maps in Wayfinding and Self Localisation  

NASA Astrophysics Data System (ADS)

The paper is concerned with the empirical investigation of different types of schematised maps. In two experiments a standard floor plan was compared to three strongly schematised maps providing only route knowledge. With the help of one of the maps, the participants had to localise themselves in two tasks and performed two wayfinding tasks in a multi-level building they didn't know before. We recorded map usage time and a range of task performance measures. Although the map provided much less information, participants performed better in wayfinding with an unambiguous schematic map than with a floor plan. In the self localisation tasks, participants performed equally well with the detailed floor plan and with the schematised map versions. Like the users of a schematic map, users of a floor map presumably oriented on the network structure rather than on local geometric features. This allows them to limit the otherwise potentially very large search space in map-based self localisation. In both types of tasks participants looked at the schematised maps for a shorter time. Providing less than standard information like in a highly schematised map can lead to better performance. We conclude that providing unambiguous turning information (route knowledge) rather than survey knowledge is most crucial for wayfinding in unknown environments.

Meilinger, Tobias; Hölscher, Christoph; Büchner, Simon J.; Brösamle, Martin

183

Multidimensional scaling of schematically represented faces based on dissimilarity estimates and evoked potentials of differences amplitudes.  

PubMed

This study researches the input of the cerebral occipital and temporal cortex in the analysis of facial configuration and expressive characteristics. Analysis is based on the construction of a spherical model for the differentiation of schematically presented faces with quantitatively altering curvature of the mouth and brows. The model is designed using the method of multidimensional scaling of the dissimilarity judgments between stimuli (faces) and the amplitude of evoked potentials of differences (EPD) between abrupt stimulus changes recorded from the occipital and posterior temporal cortex. Analysis of the structure of the spherical model of facial differentiation depending on the electrode site and the latency of the EPD component within the duration of 120-240 ms has demonstrated that the activity of the occipital and posterior temporal cortex of the right hemisphere is associated with the emotional characteristics of the presented face, whereas facial configuration is reflected in the activation of both posterior temporal cortex and the occipital cortex of the left hemisphere. At all electrode sites maximum information of the emotional expression and configuration is represented in inter-peak amplitude P120-N180. With increasing latency there is increased distortion of the structure of differences in the spherical model of schematically presented faces, which is interpreted as an attenuation of electrical activity associated with the analysis of the emotional expression, which occurs more rapidly than configuration analysis. PMID:16255381

Izmailov, Chingiz A; Sokolov, Evgeni N; Korshunova, Svetlana G

2005-11-01

184

Wire detecting apparatus and method  

SciTech Connect

This invention is comprised of an apparatus and method that combines a signal generator and a passive signal receiver to detect and record the path of partially or completely concealed electrical wiring without disturbing the concealing surface. The signal generator applies a series of electrical pulses to the selected wiring of interest. The applied pulses create a magnetic field about the wiring that can be detected by a coil contained within the signal receiver. An audible output connected to the receiver and driven by the coil reflects the receiver`s position with respect to the wiring. The receiver`s audible signal is strongest when the receiver is directly above the wiring and the long axis of the receiver`s coil is parallel to the wiring. A marking means is mounted on the receiver to mark the location of the wiring as the receiver is directed over the wiring`s concealing surface. Numerous marks made on various locations of the concealing surface will trace the path of the wiring of interest.

Kronberg, J.W.

1991-12-31

185

Manually Operated Welding Wire Feeder  

NASA Technical Reports Server (NTRS)

A manual welding wire feeder apparatus comprising a bendable elongate metal frame with a feed roller mounted at the center thereof for rotation about an axis transverse to the longitudinal axis of the frame. The frame ends are turned up as tabs and each provided with openings in alignment with each other and the mid-width center of the roller surface. The tab openings are sized to accommodate welding wire and each extends to a side edge of the tab, both opening on the same side of the frame, whereby welding wire can be side-loaded onto the frame. On the side of the frame, opposite the roller a lock ring handle is attached tangentially and is rotatable about the attachment point and an axis perpendicular to the frame. The device is grasped in the hand normally used to hold the wire. A finger is placed through the loop ring and the frame positioned across the palm and lower fingers. The thumb is positioned atop the wire so it can be moved from the back of the frame across the roller, and towards the front. In doing so, the wire is advanced at a steady rate in axial alignment with the tab openings and roller. To accommodate different wire diameters the frame is bendable about its center in the plane of the frame axis and wire so as to keep the wire in sufficient tension against the roller and to keep the wire fixed when the frame is tilted and thumb pressure released.

Rybicki, Daniel J. (Inventor)

2001-01-01

186

Assembly Using X-Wire™ Insulated Bonding Wire Technology  

Microsoft Academic Search

As the semiconductor industry continues to move towards higher pin count, finer pitch, multi-row and multi- stack devices, wire bonding becomes an increasing challenge for today's advanced packaging processes. Insulated bonding wire technology, known as X-Wire™, has been identified on the 2006 ITRS Roadmap for Semiconductors (1), as a viable, cost-effective solution to enable complex package designs, enhance package performance,

Robert Lyn

2007-01-01

187

Warped penguin diagrams  

SciTech Connect

We present an analysis of the loop-induced magnetic dipole operator in the Randall-Sundrum model of a warped extra dimension with anarchic bulk fermions and an IR brane-localized Higgs. These operators are finite at one-loop order and we explicitly calculate the branching ratio for {mu}{yields}e{gamma} using the mixed position/momentum space formalism. The particular bound on the anarchic Yukawa and Kaluza-Klein (KK) scales can depend on the flavor structure of the anarchic matrices. It is possible for a generic model to either be ruled out or unaffected by these bounds without any fine-tuning. We quantify how these models realize this surprising behavior. We also review tree-level lepton flavor bounds in these models and show that these are on the verge of tension with the {mu}{yields}e{gamma} bounds from typical models with a 3 TeV Kaluza-Klein scale. Further, we illuminate the nature of the one-loop finiteness of these diagrams and show how to accurately determine the degree of divergence of a five-dimensional loop diagram using both the five-dimensional and KK formalism. This power counting can be obfuscated in the four-dimensional Kaluza-Klein formalism and we explicitly point out subtleties that ensure that the two formalisms agree. Finally, we remark on the existence of a perturbative regime in which these one-loop results give the dominant contribution.

Csaki, Csaba; Grossman, Yuval; Tanedo, Philip; Tsai, Yuhsin [Institute for High Energy Phenomenology, Newman Laboratory of Elementary Particle Physics, Cornell University, Ithaca, New York 14853 (United States)

2011-04-01

188

Impact decision support diagrams  

NASA Astrophysics Data System (ADS)

One way to frame the job of planetary defense is to “find the optimal approach for finding the optimal approach” to NEO mitigation. This requires a framework for defining in advance what should be done under various circumstances. The two-dimensional action matrix from the recent NRC report “Defending Planet Earth” can be generalized to a notional “Impact Decision Support Diagram” by extending it into a third dimension. The NRC action matrix incorporated two important axes: size and time-to-impact, but probability of impact is also critical (it is part of the definitions of both the Torino and Palermo scales). Uncertainty has been neglected, but is also crucial. It can be incorporated by subsuming it into the NEO size axis by redefining size to be three standard deviations greater than the best estimate, thereby providing a built-in conservative margin. The independent variable is time-to-impact, which is known with high precision. The other two axes are both quantitative assessments of uncertainty and are both time dependent. Thus, the diagram is entirely an expression of uncertainty. The true impact probability is either one or zero, and the true size does not change. The domain contains information about the current uncertainty, which changes with time (as opposed to reality, which does not change).

Boslough, Mark

2014-10-01

189

Reduction in wire tension caused by wire clamping and wire tensioner removal: an experimental Ilizarov frame study.  

PubMed

The stability of an external ring fixator mainly depends on wire tension. Wire fixators should maintain the tension during both wire clamping to the ring and removal of the tensioner device. In the present study the loss in wire tension related to fixator clamping and wire tensioner removal using three different wire fixator designs was studied. The fixators were based on two different cannulated bolts and a washer. Effects from two different pretension levels in combination with three different bolt torque levels upon loss in wire tension were described. Emitted wire vibration frequency was used to assess the corresponding wire tension. Wire tension was determined after each wire fixator tightening and after the removal of the wire tensioner. Increased bolt torque led to a small decrease in tension for both pretension levels. A considerable higher tension loss was measured when removing the wire tensioner. In all cases, the combination of a new cannulated bolt and a washer maintained the highest tension. PMID:21485324

La Russa, Valentina; Skallerud, Bjørn; Klaksvik, Jomar; Foss, Olav A

2011-03-01

190

Review of wire chamber aging  

SciTech Connect

This paper makes an overview of the wire chamber aging problems as a function of various chamber design parameters. It emphasizes the chemistry point of view and many examples are drawn from the plasma chemistry field as a guidance for a possible effort in the wire chamber field. The paper emphasizes the necessity of variable tuning, the importance of purity of the wire chamber environment, as well as it provides a practical list of presently known recommendations. In addition, several models of the wire chamber aging are qualitatively discussed. The paper is based on a summary talk given at the Wire Chamber Aging Workshop held at LBL, Berkeley on January 16-17, 1986. Presented also at Wire Chamber Conference, Vienna, February 25-28, 1986. 74 refs., 18 figs., 11 tabs.

Va'Vra, J.

1986-02-01

191

Argument Diagramming: The Araucaria Project  

NASA Astrophysics Data System (ADS)

Formal arguments, such as those used in science, medicine and law to establish a conclusion by providing supporting evidence, are frequently represented by diagrams such as trees and graphs. We describe the software package Araucaria which allows textual arguments to be marked up and represented as standard, Toulmin or Wigmore diagrams. Since each of these diagramming techniques was devised for a particular domain or argumentation, we discuss some of the issues involved in translating between diagrams. The exercise of translating between different diagramming types illustrates that any one diagramming system often cannot capture all of the nuances inherent in an argument. Finally, we describe some areas, such as critical thinking courses in colleges and universities and the analysis of evidence in court cases, where Araucaria has been put to practical use.

Rowe, Glenn; Reed, Chris

192

Generating function for web diagrams  

E-print Network

We present the description of the exponentiated diagrams in terms of generating function within the universal diagrammatic technique. In particular, we show the exponentiation of the gauge theory amplitudes involving products of an arbitrary number of Wilson lines of arbitrary shapes, which generalizes the concept of web diagrams. The presented method gives a new viewpoint on the web diagrams and proves the non-Abelian exponentiation theorem.

A. A. Vladimirov

2014-09-06

193

Program Synthesizes UML Sequence Diagrams  

NASA Technical Reports Server (NTRS)

A computer program called "Rational Sequence" generates Universal Modeling Language (UML) sequence diagrams of a target Java program running on a Java virtual machine (JVM). Rational Sequence thereby performs a reverse engineering function that aids in the design documentation of the target Java program. Whereas previously, the construction of sequence diagrams was a tedious manual process, Rational Sequence generates UML sequence diagrams automatically from the running Java code.

Barry, Matthew R.; Osborne, Richard N.

2006-01-01

194

Synthesis of Magnesium Diboride Wires  

NASA Astrophysics Data System (ADS)

Magnesium diboride, MgB2, has been of great interest recently due to its high superconducting transition temperature for a material which exhibits properties similar to classical (BCS) superconductors. It has been found that wire segments of MgB2 can be prepared by exposing commercial boron coated filaments to magnesium vapor. This research has shown that the critical current of such wires is highly dependent on the preparation procedures and wire properties. These cm long wire segments have a grain size ranging from 2-20 µm and will carry current densities of 20,000 A/cm2 at 20 K and 1 Tesla.

Canfield, Paul; Bud'Ko, Sergei; Finnemore Anderson, Douglas, Jr.

2002-03-01

195

System Identification of Wire Electrical Discharge Machining  

Microsoft Academic Search

In wire electrical discharge machining (wire-EDM), it is very important to restrain the vibration of the tool wire electrode for the improvement of machining accuracy. In this paper, investigation is carried out toward the dynamic wire vibration mechanism and a mathematical model is derived. This model is compared with experimental results. The measured displacement of a wire electrode in machining

N. Mohri; H. Yamada; K. Furutani; T. Narikiyo; T. Magara

1998-01-01

196

Composite Wires with High Tensile Core for Wire EDM  

Microsoft Academic Search

In recent years wire EDM cutting speeds and final surface roughness have been continuously improving. Much higher cutting speeds during roughing and surface roughness values lower than 0.1 ?m Ra during finishing can be obtained. These enhancements are mostly attributed to the use of more advanced generator technology, but also to the type of wire. This paper discusses the use

J.-P. Kruth; B. Lauwers; B. Schacht; J. van Humbeeck

2004-01-01

197

Soft magnetic wires  

NASA Astrophysics Data System (ADS)

An overview of the present state of the art on the preparation techniques, outstanding magnetic properties and applications of soft magnetic micro and nanowires is presented. Rapid solidification techniques (in-rotating-water quenching and drawing methods) to fabricate amorphous microwires with diameter in the range from 100 down to 1 ?m are first described. Electrodeposition is also employed to prepare composite microtubes (magnetic coatings) and to fill porous membranes (diameter of the order of 0.1 ?m). Magnetic behaviours of interest are related to the different hysteresis loops of samples: square-shaped loops typical of bistable behaviour, and nearly non-hysteretic loop with well-defined transverse anisotropy field. The role played by magnetic dipolar interactions in the magnetic behaviour of arrays of micro and nanowires is described. A particular analysis is done on the giant magnetoimpedance (GMI) effect in the radio and microwave frequency ranges exhibited by ultrasoft microwires. Finally, a few examples of applications are introduced for magnetostrictive and non-magnetostrictive wires, they are: “magnetoelastic pens”, micromotors; DC current-sensors based on GMI, and sharpened amorphous wire tips in spin polarised scanning tunneling microscopy.

Vázquez, M.

2001-06-01

198

Asteroseismology "on a WIRE"  

NASA Astrophysics Data System (ADS)

The Wide-field Infra Red Explorer (WIRE) was launched in March 1999. Its main mission failed due to loss of coolant, but the 52 mm aperture star camera was used for asteroseismology. A few results are already published, but other bright variable stars were observed as well. Here we present an overview of the preliminary results and detailed period analyses on WIRE data of massive main-sequence pulsators. The period of the ? Scuti star ? Cas could be easily recovered. In an almost uninterrupted observing run of 17 days on the 16 Msolar star ? Crucis (Mimosa) multiperiodicity could be found in the light variations of this ? Cephei variable. Ground-based photometry so far revealed only one period for this star. Although the amplitudes are small (3, 2.7 and 0.6 millimag for the dominant modes), the periods are in perfect agreement with the results of a recent line profile study of this star. Indications of more periods, including a previously suggested one, are present. The results obtained during this unintentional and unadapted asteroseismology project are extremely promising. They show only a tiny fraction of the outcome of a fully adapted asteroseismological mission like Eddington.

Cuypers, J.; Aerts, C.; Buzasi, D.; Catanzarite, J.; Conrow, T.; Laher, R.

2002-01-01

199

Improved superconducting magnet wire  

DOEpatents

This invention is directed to a superconducting tape or wire composed of alternating layers of copper and a niobium-containing superconductor such as niobium of NbTi, Nb/sub 3/Sn or Nb/sub 3/Ge. In general, each layer of the niobium-containing superconductor has a thickness in the range of about 0.05 to 1.5 times its coherence length (which for Nb/sub 3/Si is 41 A) with each copper layer having a thickness in the range of about 170 to 600 A. With the use of very thin layers of the niobium composition having a thickness within the desired range, the critical field (H/sub c/) may be increased by factors of 2 to 4. Also, the thin layers of the superconductor permit the resulting tape or wire to exhibit suitable ductility for winding on a magnet core. These compositions are also characterized by relatively high values of critical temperature and therefore will exhibit a combination of useful properties as superconductors.

Schuller, I.K.; Ketterson, J.B.

1983-08-16

200

Human life support during interplanetary travel and domicile. II - Generic Modular Flow Schematic modeling  

NASA Technical Reports Server (NTRS)

This paper describes the Generic Modular Flow Schematic (GMFS) architecture capable of encompassing all functional elements of a physical/chemical life support system (LSS). The GMFS can be implemented to synthesize, model, analyze, and quantitatively compare many configurations of LSSs, from a simple, completely open-loop to a very complex closed-loop. The GMFS model is coded in ASPEN, a state-of-the-art chemical process simulation program, to accurately compute the material, heat, and power flow quantities for every stream in each of the subsystem functional elements (SFEs) in the chosen configuration of a life support system. The GMFS approach integrates the various SFEs and subsystems in a hierarchical and modular fashion facilitating rapid substitutions and reconfiguration of a life support system. The comprehensive ASPEN material and energy balance output is transferred to a systems and technology assessment spreadsheet for rigorous system analysis and trade studies.

Farral, Joseph F.; Seshan, P. K.; Rohatgi, Naresh K.

1991-01-01

201

Schematic Mode Coupling Theory of Glass Rheology: Single and Double Step Strains  

E-print Network

Mode coupling theory (MCT) has had notable successes in addressing the rheology of hard-sphere colloidal glasses, and also soft colloidal glasses such as star-polymers. Here, we explore the properties of a recently developed MCT-based schematic constitutive equation under idealized experimental protocols involving single and then double step strains. We find strong deviations from expectations based on factorable, BKZ-type constitutive models. Specifically, a nonvanishing stress remains long after the application of two equal and opposite step strains; this residual stress is a signature of plastic deformation. We also discuss the distinction between hypothetically instantaneous step strains and fast ramps. These are not generally equivalent in our MCT approach, with the latter more likely to capture the physics of experimental `step' strains. The distinction points to the different role played by reversible anelastic, and irreversible plastic rearrangements.

Th. Voigtmann; J. M. Brader; M. Fuchs; M. E. Cates

2012-03-28

202

Northern Pacific Railroad Bridge and Wire Weight  

USGS Multimedia Gallery

Wire weight is lowered to water surface to measure stage at a site. Levels are made to the wire weights elevation from known benchmarks to ensure correct readings. This wire weight is located along the Missouri River in Bismarck, ND....

203

Development and testing of laser Doppler system components for wake vortex monitoring. Volume 2: Scanner operations manual  

NASA Technical Reports Server (NTRS)

The theory and operation of the scanner portion of the laser Doppler system for detecting and monitoring aircraft trailing vortices in an airport environment are discussed. Schematics, wiring diagrams, component values, and operation and checkout procedures are included.

Edwards, B. B.; Coffey, E. W.

1974-01-01

204

Aircraft wiring program status report  

NASA Astrophysics Data System (ADS)

In this Naval Air Warfare Center (NAWC) Aircraft Division status report, the general and wire and cable component activities, the systems engineering activities, the aircraft wiring lead maintenance activities, the NAVAIR/NASA interface activities, and the Base Realignment and Closure (BRAC) Commission recommendations are presented.

Beach, Rex

1995-11-01

205

Most Wired 2006: measuring value.  

PubMed

As the Most Wired hospitals incorporate information technology into their strategic plans, they combine a"balanced scorecard"approach with classic business analytics to measure how well IT delivers on their goals. To find out which organizations made this year's 100 Most Wired list, as well as those named in other survey categories, go to the foldout section. PMID:16915970

Solovy, Alden

2006-07-01

206

Straddle packer wire line tester  

Microsoft Academic Search

This invention proposes to overcome the shortcomings of previous fluid recovering wire-line testers, by setting forth a novel construction for a wire-line testing tool. The tool is suspended from the wellhead by a multistrand insulated electrical cable similar to that used to run electrical logs, and utilizes a straddle packer arrangement to isolate a portion of well bore. The packers

1967-01-01

207

The Current in a Wire  

ERIC Educational Resources Information Center

This little problem arose because I was frustrated with the standard electromagnetism texts, which show the magnetic field due to a current-bearing wire outside the wire [proportional to] 1/r and inside [proportional to] r. However, they never point out that the moving electrons must be influenced by the magnetic field created by the other moving…

Thompson, Keith

2009-01-01

208

Physiology Flow-Diagram Models  

NSDL National Science Digital Library

A set of physiology flow-diagrams for the cardiovascular system, cardiac auto-rhythmic cell, cardiac contractile cell, respiratory system, coagulation/hemostasis, digestive system, excretion, and autonomic nervous system. These flow-diagrams show cause-and-effect markup and have accompanying tutorials.

PhD Sandra J Bruner (Polk Community College Biology)

2005-10-04

209

Perturbations to the Hubble diagram  

E-print Network

We compute the linear responses of the Hubble diagram to small scalar perturbations in the Robertson-Walker metric and to small peculiar velocities of emitter and receiver. We discuss the monotonicity constraint of the Hubble diagram in the light of these responses.

Thomas Schucker; Ilhem ZouZou

2005-11-17

210

Summarization of Diagrams in Documents  

Microsoft Academic Search

Documents are composed of text and graphics. There is substantial work on automated text summarization but almost none on the automated summarization of graphics. Four examples of diagrams from the scientific literature are used to indicate the problems and possible solutions: a table of images, a flow chart, a set of x,y data plots, and a block diagram. Manual summaries

Robert P. Futrelle

1999-01-01

211

Sets and the Venn Diagram  

NSDL National Science Digital Library

This lesson is designed to introduce students to sets, terms used with sets, and Venn diagrams. This lesson provides links to discussions and activities related to sets and Venn diagrams as well as suggested ways to integrate them into the lesson. Finally, the lesson provides links to follow-up lessons designed for use in succession with the current one.

2011-05-23

212

Architecture flow diagrams under Teamwork  

Microsoft Academic Search

The Teamwork CASE tool allows data flow diagrams (DFDs) to be maintained for structured analysis. Fermilab has extended Teamwork under UNIX to permit Hatley and Pirbhai architecture flow diagrams (AFDs) to be associated with DFDs and subsequently maintained. This extension, called TWKAFD, allows a user to open an AFD, graphically edit it, and replace it into a TWKAFD maintained library.

Tom Nicinski

1992-01-01

213

Time-Based Voronoi Diagram  

Microsoft Academic Search

We consider a variation of Voronoi diagram, or time-based Voronoi diagram, for a set S of points in the presence of transportation lines or highways in the plane. A shortest time-distance path from a query point to any given point in S is a path that takes the least travelling time. The travelling speeds and hence travelling times of the

D. T. Lee; Chung-Shou Liao; Wei-Bung Wang

214

Transformations of triangle ladder diagrams  

E-print Network

It is shown how dual space diagrammatic representation of momentum integrals corresponding to triangle ladder diagrams with an arbitrary number of rungs can be transformed to half-diamonds. In paper arXiv:0803.3420 [hep-th] the half-diamonds were related by conformal integral substitution to the diamonds which represent the dual space image of four-point ladder integrals in the four-dimensional momentum space. Acting in the way described in the present paper we do not need to use the known result for diamond (four-point) diagrams as an external input in deriving relations of arXiv:0803.3420 [hep-th], however, that result for the diamond diagram arises in the present proof as an intermediate consequence in a step-by-step diagrammatic transformation from the triangle ladder diagram to the half-diamond diagrams.

Igor Kondrashuk; Alvaro Vergara

2010-02-13

215

Electrode carrying wire for GTAW welding  

NASA Technical Reports Server (NTRS)

A welding torch for gas tungsten arc welding apparatus has a hollow tungsten electrode including a ceramic liner and forms the filler metal wire guide. The wire is fed through the tungsten electrode thereby reducing the size of the torch to eliminate clearance problems which exist with external wire guides. Since the wire is preheated from the tungsten more wire may be fed into the weld puddle, and the wire will not oxidize because it is always within the shielding gas.

Morgan, Gene E. (inventor); Dyer, Gerald E. (inventor)

1990-01-01

216

Internal wire guide for GTAW welding  

NASA Technical Reports Server (NTRS)

A welding torch for gas tungsten arc welding apparatus has a filler metal wire guide positioned within the torch, and within the shielding gas nozzle. The wire guide is adjacent to the tungsten electrode and has a ceramic liner through which the wire is fed. This reduces the size of the torch and eliminates the outside clearance problems that exit with external wire guides. Additionally, since the wire is always within the shielding gas, oxidizing of the wire is eliminated.

Morgan, Gene E. (inventor); Dyer, Gerald E. (inventor)

1989-01-01

217

Apollo experience report: Electrical wiring subsystem  

NASA Technical Reports Server (NTRS)

The general requirements of the electrical wiring subsystems and the problem areas and solutions that occurred during the major part of the Apollo Program are detailed in this report. The concepts and definitions of specific requirements for electrical wiring; wire-connecting devices; and wire-harness fabrication, checkout, and installation techniques are discussed. The design and development of electrical wiring and wire-connecting devices are described. Mission performance is discussed, and conclusions and recommendations for future programs are presented.

White, L. D.

1975-01-01

218

Manufacture and quality control of interconnecting wire hardnesses, Volume 1  

NASA Technical Reports Server (NTRS)

A standard is presented for manufacture, installation, and quality control of eight types of interconnecting wire harnesses. The processes, process controls, and inspection and test requirements reflected are based on acknowledgment of harness design requirements, acknowledgment of harness installation requirements, identification of the various parts, materials, etc., utilized in harness manufacture, and formulation of a typical manufacturing flow diagram for identification of each manufacturing and quality control process, operation, inspection, and test. The document covers interconnecting wire harnesses defined in the design standard, including type 1, enclosed in fluorocarbon elastomer convolute, tubing; type 2, enclosed in TFE convolute tubing lines with fiberglass braid; type 3, enclosed in TFE convolute tubing; and type 5, combination of types 3 and 4. Knowledge gained through experience on the Saturn 5 program coupled with recent advances in techniques, materials, and processes was incorporated.

1972-01-01

219

Nano-storage wires.  

PubMed

We report the development of "nano-storage wires" (NSWs), which can store chemical species and release them at a desired moment via external electrical stimuli. Here, using the electrodeposition process through an anodized aluminum oxide template, we fabricated multisegmented nanowires composed of a polypyrrole segment containing adenosine triphosphate (ATP) molecules, a ferromagnetic nickel segment, and a conductive gold segment. Upon the application of a negative bias voltage, the NSWs released ATP molecules for the control of motor protein activities. Furthermore, NSWs can be printed onto various substrates including flexible or three-dimensional structured substrates by direct writing or magnetic manipulation strategies to build versatile chemical storage devices. Since our strategy provides a means to store and release chemical species in a controlled manner, it should open up various applications such as drug delivery systems and biochips for the controlled release of chemicals. PMID:23859333

Lee, Dong Jun; Kim, Eunji; Kim, Daesan; Park, Juhun; Hong, Seunghun

2013-08-27

220

Gender Schema Theory and Its Implications for Child Development: Raising Gender-Aschematic Children in a Gender-Schematic Society.  

ERIC Educational Resources Information Center

Discusses the gender schema theory of sex typing, which proposes that sex typing derives largely from the child's readiness to encode and organize information according to the culture's definition of maleness and femaleness. Explores conditions that produce gender schematic processing and discusses strategies for raising gender aschematic…

Bem, Sandra Lipsitz

1983-01-01

221

Comparative Study of the Effectiveness of Three Learning Environments: Hyper-Realistic Virtual Simulations, Traditional Schematic Simulations and Traditional Laboratory  

ERIC Educational Resources Information Center

This study compared the educational effects of computer simulations developed in a hyper-realistic virtual environment with the educational effects of either traditional schematic simulations or a traditional optics laboratory. The virtual environment was constructed on the basis of Java applets complemented with a photorealistic visual output.…

Martinez, Guadalupe; Naranjo, Francisco L.; Perez, Angel L.; Suero, Maria Isabel; Pardo, Pedro J.

2011-01-01

222

(a) Focusing schematic (b) Experimental setup (c) Raw image of temperature-dependent rhodamine B fluorescence intensity at = 580 nm  

E-print Network

(a) Focusing schematic (b) Experimental setup (c) Raw image of temperature-dependent rhodamine B of 100 µM rhodamine B, a dye whose quantum efficiency is a strong function of temperature. Rhodamine B velocities (advective plus electrophoretic) sum to zero (a). The experimental setup (b) consists

Kihm, IconKenneth David

223

Figure 1. Schematic drawing showing the components of a Li-ion battery cell and the information that can be  

E-print Network

on electron and ionic transfer across solid­solid and solid­liquid interfaces and within each dynamic operation of the battery. #12;Figure 2. FIB manipulation and welding of a single SnO2 nanowire welding, and (c) optical image showing the SnO2 dipped into the ionic liquid. Figure 3. Schematic drawing

224

Plasma chemistry in wire chambers  

SciTech Connect

The phenomenology of wire chamber aging is discussed and fundamentals of proportional counters are presented. Free-radical polymerization and plasma polymerization are discussed. The chemistry of wire aging is reviewed. Similarities between wire chamber plasma (>1 atm dc-discharge) and low-pressure rf-discharge plasmas, which have been more widely studied, are suggested. Construction and use of a system to allow study of the plasma reactions occurring in wire chambers is reported. A proportional tube irradiated by an {sup 55}Fe source is used as a model wire chamber. Condensable species in the proportional tube effluent are concentrated in a cryotrap and analyzed by gas chromatography/mass spectrometry. Several different wire chamber gases (methane, argon/methane, ethane, argon/ethane, propane, argon/isobutane) are tested and their reaction products qualitatively identified. For all gases tested except those containing methane, use of hygroscopic filters to remove trace water and oxygen contaminants from the gas resulted in an increase in the average molecular weight of the products, consistent with results from low-pressure rf-discharge plasmas. It is suggested that because water and oxygen inhibit polymer growth in the gas phase that they may also reduce polymer deposition in proportional tubes and therefore retard wire aging processes. Mechanistic implications of the plasma reactions of hydrocarbons with oxygen are suggested. Unresolved issues in this work and proposals for further study are discussed.

Wise, J.

1990-05-01

225

Schematic Diagram of Physical and Chemical Steps to extract Al and Be from Quartz-bearing rocks Quartz separation and pre-  

E-print Network

bath D.3 Loading samples into AMS targets in the glove box D.2 Burning samples in tube furnace #12 at The University of Edinburgh: http://www.geos.ed.ac.uk/facilities/cosmolab/ #12;Chemical Separation of Al

Bookhagen, Bodo

226

The Hertzsprung-Russell Diagram.  

ERIC Educational Resources Information Center

Describes a classroom use of the Hertzsprung-Russell diagram to infer not only the properties of a star but also the star's probable stage in evolution, life span, and age of the cluster in which it is located. (ZWH)

Woodrow, Janice

1991-01-01

227

Formulae and Flow-Diagrams  

ERIC Educational Resources Information Center

The author recommends the use of flow charting to help students understand the manipulation of algebraic formulae. He identifies some problems with flow charts and suggests an alternative method of constructing flow diagrams. (SD)

Willson, William Wynne

1977-01-01

228

Bringing class diagrams to life  

Microsoft Academic Search

Research in formal methods emphasizes a fundamental interconnection between modeling, calculation and prototyping, made possible\\u000a by a common unambiguous, mathematical semantics. This paper, building on a broader research agenda on coalgebraic semantics\\u000a for Unified Modeling Language diagrams, concentrates on class diagrams and discusses how such a coalgebraic perspective can\\u000a be of use not only for formalizing their specification, but also

Luís Soares Barbosa; Sun Meng

2010-01-01

229

Interpreting T-X Diagrams  

NSDL National Science Digital Library

This short problem set works well as a group activity that can be completed in class. The purpose of the exercise is for students to begin to think about T-X phase diagrams and how they are interpreted. Along the way, students learn that text book authors sometimes make mistakes. The figure in the handout is from Winter's Petrology. But, Winter goofed and left some reactions off of the phase diagram.

Dexter Perkins

230

Changing Perceptions of Animated Diagrams  

Microsoft Academic Search

\\u000a While the educational effectiveness of static diagrams is underpinned by a long heritage of manipulating visuospatial characteristics\\u000a of the depicted content to improve explanatory power, no corresponding evolution has occurred regarding temporal manipulation\\u000a of animated diagrams. When complex dynamic subject matter is presented using animations that depict temporal information in\\u000a a behaviorally realistic manner, the perceptual properties of the display

Richard Lowe

2006-01-01

231

Demonstrating Forces between Parallel Wires.  

ERIC Educational Resources Information Center

Describes a physics demonstration that dramatically illustrates the mutual repulsion (attraction) between parallel conductors using insulated copper wire, wooden dowels, a high direct current power supply, electrical tape, and an overhead projector. (WRM)

Baker, Blane

2000-01-01

232

Morphodynamic reaction of a schematic river to sediment input changes: Analytical approaches  

NASA Astrophysics Data System (ADS)

The paper investigates the morphodynamic reaction of a schematic river to a perturbation of the sediment input imposed at its upstream end. The consequent evolution of the initially equilibrium river can be studied by means of various models (0-dimensional; 1-D parabolic and 1-D hyperbolic with uniform sediments; 1-D hyperbolic with graded sediments), depending on the more or less simplified differential equations applied for describing the water and sediment motion. The paper discusses a number of analytical solutions obtained with two types of boundary conditions, namely: (i) stepwise change of the sediment input, very often connected to anthropogenic actions, and (ii) sinusoidal input variation with prescribed period, typically associated to the meteorological cycles (short period) or to the geological and climate change (long period). The solutions provide an explicit expression for the Response Time of the river for the condition (i) and the Attenuation Length of the river for the condition (ii). The two quantities as defined in this paper do have a specific physical meaning, strictly connected with the corresponding boundary conditions, which measures the reactivity of the river to external disturbances. A comparative application of the analytical solutions to various (prevalently large) rivers of the world is given, together with a final discussion.

Di Silvio, G.; Nones, M.

2014-06-01

233

[A comparison of two models of gender-related schematic processing].  

PubMed

An experiment was conducted to compare two models of gender-related schematic processing: Bem's gender schema theory (1981) and self-schema theory by Markus, Crane, Bernstein, and Saladi (1982). While the former argues for a construct that is unidimensional, the latter proposes separate masculine and feminine schemata. Two hundred and thirty-six college students (111 males and 125 females) completed Bem Sex Role Inventory, and then estimated subjective percentages of males and females who had each trait of BSRI. The subjective percentages were used to compute sex-typing scores. After the questionnaires, the subjects attempted free recall of the inventory items, and clustering scores were computed from the results. Data analyses, including those of covariance structure, yielded the following results: 1) The fit of the gender schema model was better than the self-schema model. 2) A strong gender schema was related to a high-congruent self-concept score, a low sex-incongruent self-concept score, a high sex-congruent sex-typing score, a high sex-incongruent sex-typing score, and a high sex-congruent clustering score. As a whole, the results could be summarized to support the gender schema theory. PMID:8022130

Dohi, I

1994-04-01

234

Overshoots in stress strain curves: Colloid experiments and schematic mode coupling theory  

E-print Network

The stress versus strain curves in dense colloidal dispersions under start-up shear flow are investigated combining experiments on model core-shell microgels, computer simulations of hard disk mixtures, and mode coupling theory. In dense fluid and glassy states, the transient stresses exhibit first a linear increase with the accumulated strain, then a maximum ('stress overshoot') for strain values around 5%, before finally approaching the stationary value, which makes up the flow curve. These phenomena arise in well-equilibrated systems and for homogeneous flows, indicating that they are generic phenomena of the shear-driven transient structural relaxation. Microscopic mode coupling theory (generalized to flowing states by integration through the transients) derives them from the transient stress correlations, which first exhibit a plateau (corresponding to the solid-like elastic shear modulus) at intermediate times, and then negative stress correlations during the final decay. We introduce and validate a schematic model within mode coupling theory which captures all of these phenomena and handily can be used to jointly analyse linear and large-amplitude moduli, flow curves, and stress-strain curves. This is done by introducing a new strain- and time-dependent vertex into the relation between the the generalized shear modulus and the transient density correlator.

Christian P. Amann; Miriam Siebenbürger; Matthias Krüger; Fabian Weysser; Matthias Ballauff; Matthias Fuchs

2012-11-29

235

A LAMP-based schematic prototype instrument for detection of microorganisms in human outer space activities  

NASA Astrophysics Data System (ADS)

One of the main tasks of human outer space exploration is to detect signs of life. Based on meteoritic evidence, common ancestry hypothesis has been posed. Therefore, searching for the fundamental molecules (DNA, RNA, and proteins) that constitute life as we know on Earth is feasible and now the typical approach. To achieve this goal, portable, robust, and highly sensitive instrument is also needed. In this study, based on Loop mediated isothermal amplification (LAMP) technique that targets life information storage molecular, DNA, we designed a schematic prototype instrument for microorganism detection. First, we designed LAMP primers used for amplification of DNA markers of Bacteria, Archaea, and Fungus; then, we optimized the LAMP reaction system for space using; and finally, we designed a prototype instrument and operating software system that are compatible with the LAMP reaction system. The results of simulation experiments showed that our instrument performed well for detecting representative microorganisms and the device can achieve semi-automatization. The detection process, from sample preparation to signal visualization, was completed in 1.5 hour. Our study provides a new method and corresponding device for detection of DNA molecular, which has great potential for applications in outer space exploration. Besides, the instrument we designed can also been used for monitoring changes of terrestrial microorganisms in outer space, for example in aircraft.

Hu, Yongfei; Liu, Zhiheng; Li, Junxiong; Zhu, Baoli

236

Schematic designs for penetration seals for a reference repository in bedded salt  

SciTech Connect

The isolation of radioactive wastes in geologic repositories requires that man-made penetrations such as shafts, tunnels, or boreholes are adequately sealed. This report describes schematic seal designs for a repository in bedded salt referenced to the straitigraphy of southeastern New Mexico. The designs are presented for extensive peer review and will be updated as site-specific conceptual designs when a site for a repository in salt has been selected. The principal material used in the seal system is crushed salt obtained from excavating the repository. It is anticipated that crushed salt will consolidate as the repository rooms creep close to the degree that mechanical and hydrologic properties will eventually match those of undisturbed, intact salt. For southeastern New Mexico salt, analyses indicate that this process will require approximately 1000 years for a seal located at the base of one of the repository shafts (where there is little increase in temperature due to waste emplacement) and approximately 400 years for a seal located in an access tunnel within the repository. Bulkheads composed of contrete or salt bricks are also included in the seal system as components which will have low permeability during the period required for salt consolidation.

Kelsall, P.C.; Case, J.B.; Meyer, D.; Coons, W.E.

1982-11-01

237

Synthesis of Magnesium Diboride Wires  

Microsoft Academic Search

Magnesium diboride, MgB2, has been of great interest recently due to its high superconducting transition temperature for a material which exhibits properties similar to classical (BCS) superconductors. It has been found that wire segments of MgB2 can be prepared by exposing commercial boron coated filaments to magnesium vapor. This research has shown that the critical current of such wires is

Paul Canfield; Sergei Bud'Ko; Douglas Finnemore Anderson Jr.

2002-01-01

238

Smart Wire Grid: Resisting Expectations  

ScienceCinema

Smart Wire Grid's DSR technology (Discrete Series Reactor) can be quickly deployed on electrical transmission lines to create intelligent mesh networks capable of quickly rerouting electricity to get power where and when it's needed the most. With their recent ARPA-E funding, Smart Wire Grid has been able to move from prototype and field testing to building out a US manufacturing operation in just under a year.

Ramsay, Stewart; Lowe, DeJim

2014-04-09

239

Smart Wire Grid: Resisting Expectations  

SciTech Connect

Smart Wire Grid's DSR technology (Discrete Series Reactor) can be quickly deployed on electrical transmission lines to create intelligent mesh networks capable of quickly rerouting electricity to get power where and when it's needed the most. With their recent ARPA-E funding, Smart Wire Grid has been able to move from prototype and field testing to building out a US manufacturing operation in just under a year.

Ramsay, Stewart; Lowe, DeJim

2014-03-03

240

Silicon Ingot Wire Cutting Animation  

NSDL National Science Digital Library

This Quicktime animation is of a single wire slicing the silicon ingot into thin wafers. By using a thinner wire, and by cutting all wafers at that same time, this minimizes material loss. This animation is the third in a series showing silicon wafer production process after it has been ground to the correct diameter.The previous animation showing silicon ingot rod grinding can be seen here.The next animation in this sequence about silicon wafer lapping can be seen here.

241

Superconducting film on metallic wire  

NASA Technical Reports Server (NTRS)

For technological applications of high T(sub c) superconductors, it will be necessary to overcome the inherent problem of brittleness, to develop materials with high current carrying capacity, and to devise ways of joining superconductors with other materials. These issues will be addressed in the context of superconducting films on metallic wires. These composite systems are expected to produce flexible wires with desirable properties.

Akbar, Sheikh A.

1990-01-01

242

Method of manufacturing superconductor wire  

DOEpatents

A method for forming Nb.sub.3Sn superconducting wire is provided. The method employs a powder-in-tube process using a high-tin intermetallic compound, such as MnSn.sub.2, for producing the Nb.sub.3Sn. The use of a high-tin intermetallic compound enables the process to perform hot extrusion without melting the high-tin intermetallic compound. Alternatively, the method may entail drawing the wire without hot extrusion.

Motowidlo, Leszek

2014-09-16

243

1 mil gold bond wire study.  

SciTech Connect

In microcircuit fabrication, the diameter and length of a bond wire have been shown to both affect the current versus fusing time ratio of a bond wire as well as the gap length of the fused wire. This study investigated the impact of current level on the time-to-open and gap length of 1 mil by 60 mil gold bond wires. During the experiments, constant current was provided for a control set of bond wires for 250ms, 410ms and until the wire fused; non-destructively pull-tested wires for 250ms; and notched wires. The key findings were that as the current increases, the gap length increases and 73% of the bond wires will fuse at 1.8A, and 100% of the wires fuse at 1.9A within 60ms. Due to the limited scope of experiments and limited data analyzed, further investigation is encouraged to confirm these observations.

Huff, Johnathon; McLean, Michael B.; Jenkins, Mark W.; Rutherford, Brian Milne

2013-05-01

244

Vibrating wires for beam diagnostics  

E-print Network

A new approach to the technique of scanning by wires is developed. Novelty of the method is that the wire heating quantity is used as a source of information about the number of interacting particles. To increase the accuracy and sensitivity of measurements the wire heating measurement is regenerated as a change of wire natural oscillations frequency. By the rigid fixing of the wire ends on the base an unprecedented sensitivity of the frequency to the temperature and to the corresponding flux of colliding particles. The range of used frequencies (tens of kHz) and speed of processes of heat transfer limit the speed characteristics of proposed scanning method, however, the high sensitivity make it a perspective one for investigation of beam halo and weak beam scanning. Traditional beam profile monitors generally focus on the beam core and loose sensitivity in the halo region where a large dynamic range of detection is necessary. The scanning by a vibrating wire can be also successfully used in profiling and det...

Arutunian, S G; Wittenburg, Kay

2015-01-01

245

HTS Wire Development Workshop: Proceedings  

SciTech Connect

The 1994 High-Temperature Superconducting Wire Development Workshop was held on February 16--17 at the St. Petersburg Hilton and Towers in St. Petersburg, Florida. The meeting was hosted by Florida Power Corporation and sponsored by the US Department of Energy`s Superconductivity Program for Electric Power Systems. The meeting focused on recent high-temperature superconducting wire development activities in the Department of Energy`s Superconductivity Systems program. The meeting opened with a general discussion on the needs and benefits of superconductivity from a utility perspective, the US global competitiveness position, and an outlook on the overall prospects of wire development. The meeting then focused on four important technology areas: Wire characterization: issues and needs; technology for overcoming barriers: weak links and flux pinning; manufacturing issues for long wire lengths; and physical properties of HTS coils. Following in-depth presentations, working groups were formed in each technology area to discuss the most important current research and development issues. The working groups identified research areas that have the potential for greatly enhancing the wire development effort. These areas are discussed in the summary reports from each of the working groups. This document is a compilation of the workshop proceedings including all general session presentations and summary reports from the working groups.

Not Available

1994-07-01

246

A. Syntax Diagrams A-1 Appendix A  

E-print Network

A. Syntax Diagrams A-1 Appendix A: Syntax Diagrams References: · Kathleen Jensen/Niklaus Wirth A is a short introduction to syntax diagrams. · Don Chamberlin: A Complete Guide to DB2 Universal Database. Morgan Kaufmann, 1998. Section 1.1.2 is a very quick introduction to syntax diagrams. Stefan Brass

Brass, Stefan

247

Automatically Assessing Graph-Based Diagrams  

ERIC Educational Resources Information Center

To date there has been very little work on the machine understanding of imprecise diagrams, such as diagrams drawn by students in response to assessment questions. Imprecise diagrams exhibit faults such as missing, extraneous and incorrectly formed elements. The semantics of imprecise diagrams are difficult to determine. While there have been…

Thomas, Pete; Smith, Neil; Waugh, Kevin

2008-01-01

248

CONTEXTEXPLOITING SHAPES FOR DIAGRAM TRANSFORMATION Frank Drewes  

E-print Network

with editors for control flow diagrams, Nassi­Shneiderman diagrams, message sequence charts, state charts primitives, and reduces them to dia­ gram symbols, like assignments and branches in a control flow diagramCONTEXT­EXPLOITING SHAPES FOR DIAGRAM TRANSFORMATION Frank Drewes Institutionen fË?or Datavetenskap

Drewes, Frank

249

False recall is reduced by damage to the ventromedial prefrontal cortex: implications for understanding the neural correlates of schematic memory.  

PubMed

Schematic memory, or contextual knowledge derived from experience (Bartlett, 1932), benefits memory function by enhancing retention and speeding learning of related information (Bransford and Johnson, 1972; Tse et al., 2007). However, schematic memory can also promote memory errors, producing false memories. One demonstration is the "false memory effect" of the Deese-Roediger-McDermott (DRM) paradigm (Roediger and McDermott, 1995): studying words that fit a common schema (e.g., cold, blizzard, winter) often produces memory for a nonstudied word (e.g., snow). We propose that frontal lobe regions that contribute to complex decision-making processes by weighting various alternatives, such as ventromedial prefrontal cortex (vmPFC), may also contribute to memory processes by weighting the influence of schematic knowledge. We investigated the role of human vmPFC in false memory by combining a neuropsychological approach with the DRM task. Patients with vmPFC lesions (n = 7) and healthy comparison participants (n = 14) studied word lists that excluded a common associate (the critical item). Recall and recognition tests revealed expected high levels of false recall and recognition of critical items by healthy participants. In contrast, vmPFC patients showed consistently reduced false recall, with significantly fewer intrusions of critical items. False recognition was also marginally reduced among vmPFC patients. Our findings suggest that vmPFC increases the influence of schematically congruent memories, a contribution that may be related to the role of the vmPFC in decision making. These novel neuropsychological results highlight a role for the vmPFC as part of a memory network including the medial temporal lobes and hippocampus (Andrews-Hanna et al., 2010). PMID:24872571

Warren, David E; Jones, Samuel H; Duff, Melissa C; Tranel, Daniel

2014-05-28

250

Plasma arc torch with coaxial wire feed  

DOEpatents

A plasma arc welding apparatus having a coaxial wire feed. The apparatus includes a plasma arc welding torch, a wire guide disposed coaxially inside of the plasma arc welding torch, and a hollow non-consumable electrode. The coaxial wire guide feeds non-electrified filler wire through the tip of the hollow non-consumable electrode during plasma arc welding. Non-electrified filler wires as small as 0.010 inches can be used. This invention allows precision control of the positioning and feeding of the filler wire during plasma arc welding. Since the non-electrified filler wire is fed coaxially through the center of the plasma arc torch's electrode and nozzle, the wire is automatically aimed at the optimum point in the weld zone. Therefore, there is no need for additional equipment to position and feed the filler wire from the side before or during welding.

Hooper, Frederick M (Albuquerque, NM)

2002-01-01

251

Coulomb interaction effects on the Majorana states in quantum wires.  

PubMed

The stability of the Majorana modes in the presence of a repulsive interaction is studied in the standard semiconductor wire-metallic superconductor configuration. The effects of short-range Coulomb interaction, which is incorporated using a purely repulsive ?-function to model the strong screening effect due to the presence of the superconductor, are determined within a Hartree-Fock approximation of the effective Bogoliubov-De Gennes Hamiltonian that describes the low-energy physics of the wire. Through a numerical diagonalization procedure we obtain interaction corrections to the single particle eigenstates and calculate the extended topological phase diagram in terms of the chemical potential and the Zeeman energy. We find that, for a fixed Zeeman energy, the interaction shifts the phase boundaries to a higher chemical potential, whereas for a fixed chemical potential this shift can occur either at lower or higher Zeeman energies. These effects can be interpreted as a renormalization of the g-factor due to the interaction. The minimum Zeeman energy needed to realize Majorana fermions decreases with the increasing strength of the Coulomb repulsion. Furthermore, we find that in wires with multi-band occupancy this effect can be enhanced by increasing the chemical potential, i.e. by occupying higher energy bands. PMID:24722427

Manolescu, A; Marinescu, D C; Stanescu, T D

2014-04-30

252

NAAP HR Diagram Explorer 1/9 HR Diagram Student Guide  

E-print Network

Name: NAAP ­ HR Diagram Explorer 1/9 HR Diagram ­ Student Guide Background Information Work through Orionis O9 Radius (R) Temperature (T) Luminosity (L) 1 1 1 2 1 9 1 1/2 #12;NAAP ­ HR Diagram Explorer 2 Diagram Explorer Open the HR Diagram Explorer. Begin by familiarizing yourself with the capabilities

Farritor, Shane

253

Application of genetic algorithm-based fuzzy logic control in wire transport system of wire-EDM machine  

Microsoft Academic Search

Wire tension as well as wire feed should be controlled tightly for the geometry and corner accuracy of wire-EDM. In this paper, a closed-loop wire tension control system for Micro-Wire-EDM is presented to guarantee a smooth wire transport and a constant tension value. In order to keep smooth wire transportation and avoid wire breakage during wire feeding, the reel roller

Mu-Tian Yan; Chi-Cheng Fang

2008-01-01

254

Photoelastic analysis of stress generated by wires when conventional and self-ligating brackets are used: A pilot study  

PubMed Central

OBJECTIVE: By means of a photoelastic model, this study analyzed the stress caused on conventional and self-ligating brackets with expanded arch wires. METHOD: Standard brackets were adhered to artificial teeth and a photoelastic model was prepared using the Interlandi 19/12 diagram as base. Successive activations were made with 0.014-in and 0.018-in rounded cross section Nickel-Titanium wires (NiTi) and 0.019 x 0.025-in rectangular stainless steel wires all of which made on 22/14 Interlandi diagram. The model was observed on a plane polariscope - in a dark field microscope configuration - and photographed at each exchange of wire. Then, they were replaced by self-ligating brackets and the process was repeated. Analysis was qualitative and observed stress location and pattern on both models analyzed. CONCLUSIONS: Results identified greater stress on the region of the apex of premolars in both analyzed models. Upon comparing the stress between models, a greater amount of stress was found in the model with conventional brackets in all of its wires. Therefore, the present pilot study revealed that alignment of wires in self-ligating brackets produced lower stress in periodontal tissues in expansive mechanics. PMID:25715719

Sobral, Guilherme Caiado; Vedovello, Mário; Degan, Viviane Veroni; Santamaria, Milton

2014-01-01

255

Wires for Shape Memory Actuators  

NASA Astrophysics Data System (ADS)

The effect of non-conventional electrical pulse treatment on microstructure and shape memory response of Ni49Ti51 wires was studied. High-power rapid current square pulses were applied to cold-drawn wires of 25 µm diameter. The TEM microstructures showed equiaxial recrystallization, with average grain size in the 100 nm range, after a double current pulse lasting 10 ms. Rapid current pulse treatment in Ti-rich NiTi induces shape memory effect with reduced thermal hysteresis and high recovery strain values. This novel treatment might replace conventional pre-device shape setting/training of the wire with a post-device shape setting with promising industrial advantages.

Casati, R.; Vedani, M.; Gialanella, S.; Tuissi, A.

2014-07-01

256

Competing Effects of Interactions and Spin-Orbit Coupling in a Quantum Wire  

NASA Astrophysics Data System (ADS)

We study the interplay of electron-electron interactions and Rashba spin-orbit coupling in one-dimensional ballistic wires. Using the renormalization group approach we construct the phase diagram in terms of Rashba coupling, Tomonaga-Luttinger stiffness and backward scattering strength. We identify the parameter regimes with a dynamically generated spin gap and show where the Luttinger liquid prevails. We also discuss the consequences for the operation of the Datta-Das transistor.

Gritsev, V.; Japaridze, G.; Pletyukhov, M.; Baeriswyl, D.

2005-04-01

257

Competing effects of interactions and spin-orbit coupling in a quantum wire.  

PubMed

We study the interplay of electron-electron interactions and Rashba spin-orbit coupling in one-dimensional ballistic wires. Using the renormalization group approach we construct the phase diagram in terms of Rashba coupling, Tomonaga-Luttinger stiffness and backward scattering strength. We identify the parameter regimes with a dynamically generated spin gap and show where the Luttinger liquid prevails. We also discuss the consequences for the operation of the Datta-Das transistor. PMID:15904028

Gritsev, V; Japaridze, G; Pletyukhov, M; Baeriswyl, D

2005-04-01

258

Wire Detection Algorithms for Navigation  

NASA Technical Reports Server (NTRS)

In this research we addressed the problem of obstacle detection for low altitude rotorcraft flight. In particular, the problem of detecting thin wires in the presence of image clutter and noise was studied. Wires present a serious hazard to rotorcrafts. Since they are very thin, their detection early enough so that the pilot has enough time to take evasive action is difficult, as their images can be less than one or two pixels wide. Two approaches were explored for this purpose. The first approach involved a technique for sub-pixel edge detection and subsequent post processing, in order to reduce the false alarms. After reviewing the line detection literature, an algorithm for sub-pixel edge detection proposed by Steger was identified as having good potential to solve the considered task. The algorithm was tested using a set of images synthetically generated by combining real outdoor images with computer generated wire images. The performance of the algorithm was evaluated both, at the pixel and the wire levels. It was observed that the algorithm performs well, provided that the wires are not too thin (or distant) and that some post processing is performed to remove false alarms due to clutter. The second approach involved the use of an example-based learning scheme namely, Support Vector Machines. The purpose of this approach was to explore the feasibility of an example-based learning based approach for the task of detecting wires from their images. Support Vector Machines (SVMs) have emerged as a promising pattern classification tool and have been used in various applications. It was found that this approach is not suitable for very thin wires and of course, not suitable at all for sub-pixel thick wires. High dimensionality of the data as such does not present a major problem for SVMs. However it is desirable to have a large number of training examples especially for high dimensional data. The main difficulty in using SVMs (or any other example-based learning method) is the need for a very good set of positive and negative examples since the performance depends on the quality of the training set.

Kasturi, Rangachar; Camps, Octavia I.

2002-01-01

259

Designing potentials by sculpturing wires  

SciTech Connect

Magnetic trapping potentials for atoms on atom chips are determined by the current flow in the chip wires. By modifying the shape of the conductor we can realize specialized current flow patterns and therefore microdesign the trapping potentials. We have demonstrated this by nano-machining an atom chip using the focused ion beam technique. We built a trap, a barrier, and using a Bose-Einstein Condensate as a probe we showed that by polishing the conductor edge the potential roughness on the selected wire can be reduced. Furthermore, we give different other designs and discuss the creation of a one-dimensional magnetic lattice on an atom chip.

Della Pietra, Leonardo; Aigner, Simon; Groth, Soenke [Physikalisches Institut, Universitaet Heidelberg, 69120 Heidelberg (Germany); Hagen, Christoph von; Schmiedmayer, Joerg [Physikalisches Institut, Universitaet Heidelberg, 69120 Heidelberg (Germany); Atominstitut der Oesterreichischen Universitaeten, TU-Wien, A-1020 Vienna (Austria); Bar-Joseph, Israel [Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 7600 (Israel); Lezec, Henri J. [ISIS, Universite Louis Pasteur, 8 Allee Gaspard Monge, 67083 Strasbourg (France)

2007-06-15

260

Quantitative assessment of tension in wires of fine-wire external fixators.  

PubMed

Fine-wire fixators are widely used in fracture management. Stable fixation requires the wires maintaining tension throughout the treatment. Clinical experience indicates that wire site complications relate to wire tension. However, there lacks a method to assess wire tension quantitatively in the clinic. The objective of this study was to develop a quantitative assessment method for in situ wire tension and to investigate the factors that influence the assessment. An apparatus was developed based on a linear variable differential transformer (LVDT) displacement transducer that measured the deflection of the testing wire with respect to a parallel reference wire when a constant transverse force of 30N was applied to the testing wire. The wire deflection measured was correlated with the wire tension measured by the force transducer. The experiment was performed under different conditions to assess the effect of bone-clamp distance, reference wire tension, number of wires, and fracture stiffness. The results showed that there was a significant and negative correlation between wire tension and deflection and the bone-clamp distance was the most important factor that affected the wire tension-deflection relationship. The assessment method makes it possible to investigate the relationship between wire tension and wire site complications in the clinic. PMID:15604006

Dong, Yin; Saleh, Micheal; Yang, Lang

2005-01-01

261

Conventional Hot-Wire Anemometer Micro Hot Wire  

E-print Network

;- Heat is introduced into the sensing element by Joule heating and is lost by convection, conduction of sensor Tf: temperature of fluid environment The radiation loss is much less than the convection losses wire anemometry use the convective heat transfer from from heated sensor to the surrounding fluid

Leu, Tzong-Shyng "Jeremy"

262

Effect of Wire Purity on Copper Wire Bonding  

Microsoft Academic Search

Cu bonding has been making a wave in the IC packaging industry due to the combined efforts of wire, capillary and wirebonder manufacturers. The present challenge in copper bonding resides in minimizing the aluminium squeeze of the aluminium metallization of bond pads. This demands the copper ball to possess a lower yield stress for reduced energy to deform. In this

Narasimalu Srikanth; J. Premkumar; M. Sivakumar; Y. M. Wong; C. J. Vath

2007-01-01

263

RIGBY SPECIALITY WIRES LIMITED NEW WIRE PRODUCT IS ALL  

E-print Network

resistant properties for the installed cable, yet make it less prone to abrasion, thereby www resistant and insulated electrical wiring products are used in a wide range of applications, from public industries, but traditional insulation materials can prove susceptible to abrasion when installed

Berzins, M.

264

Construct validity of the bem sex role inventory (BSRI): Does the BSRI distinguish between gender-schematic and gender-aschematic individuals?  

Microsoft Academic Search

Factor analyses were performed on the masculine, feminine, and neutral items of the Bem Sex Role Inventory (BSRI) for gender-schematic and gender-aschematic individuals separately. The analyses revealed bipolar masculinity\\/femininity factors for the gender-schematic group and two unipolar “aschematicity” factors for the gender-aschematic group. The results support gender schema theory's claim that the two types of individuals respond differently to the

Bernd H. Schmitt; Robert T. Millard

1988-01-01

265

Dynamic programming and influence diagrams  

Microsoft Academic Search

The concept of a super value node is developed to extend the theory of influence diagrams to allow dynamic programming to be performed within this graphical modeling framework. The operations necessary to exploit the presence of these nodes and efficiently analyze the models are developed. The key result is that by representing value function separability in the structure of the

JOSEPH A. TATMAN; ROSS D. SHACHTER

1990-01-01

266

ccsd00000445, Making diagrams speak,  

E-print Network

raised by the presence of diagrams in a VIIth century Sanskrit mathematical com- mentary. Exploring di- agrammes dans un commentaire math#19;ematique en langue sanskrite datant du VII#18;eme si#18;ecle: A. Keller is a French CNRS researcher working on medieval sanskrit mathematics but also

267

Causal diagrams for empirical research  

Microsoft Academic Search

The primary aim of this paper is to show how graphical models can be used as a mathematical language for integrating statistical and subject-matter information. In particular, the paper develops a principled, nonparametric framework for causal inference, in which diagrams are queried to determine if the assumptions available are sufficient for identifying causal effects from nonexperimental data. If so the

JUDEA PEARL

1995-01-01

268

Phase Diagrams for Sonoluminescing Bubbles  

Microsoft Academic Search

Sound driven gas bubbles in water can emit light pulses. This phenomenon is called sonoluminescence (SL). Two different phases of single bubble SL have been proposed: diffusively stable and diffusively unstable SL. We present phase diagrams in the gas concentration vs forcing pressure state space and also in the ambient radius vs gas concentration and vs forcing pressure state spaces.

Sascha Hilgenfeldt; Detlef Lohse; Michael P. Brenner

1996-01-01

269

Precipitation and the Sounding Diagram  

NSDL National Science Digital Library

This undergraduate meteorology tutorial deals with the interplay between the vertical temperature structure of the atmosphere and the temperature of the ascending air in the formation of precipitation. Students learn about the dry and moist adiabatic lapse rates, reading and interpreting sounding diagrams, and determining the change in temperature as air parcels rise or sink.

John Nielsen-Gammon

1996-01-01

270

Using influence diagrams for PERT  

Microsoft Academic Search

Summary form only given. We describe a new method for explicit modeling of decisions that bear on activity times in a project. This method extends the PERT belief network (PBN) model to include decisions variables. The resulting network is called PERT Influence Diagram (PID). A PID is a PBN that includes decision variables, where arrows into decision nodes mean that

A. Jenzarli

1997-01-01

271

Voronoi Diagrams and Spring Rain  

ERIC Educational Resources Information Center

The goal of this geometry project is to use Voronoi diagrams, a powerful modeling tool across disciplines, and the integration of technology to analyze spring rainfall from rain gauge data over a region. In their investigation, students use familiar equipment from their mathematical toolbox: triangles and other polygons, circumcenters and…

Perham, Arnold E.; Perham, Faustine L.

2011-01-01

272

Index of Animated Phase Diagrams  

NSDL National Science Digital Library

This is a collection of animated phase diagrams by Kenneth Windom at Iowa State University. These short Power Point animations can be used to illustrate equilibrium crystallization concepts. There are slide shows for plagioclase feldspars (albite and anorthite); forsterite, diopside and anorthite; forsterite, enstatite and silica; and diopside and anorthite.

Kenneth E Windom

273

Concrete and Abstract Voronoi Diagrams  

Microsoft Academic Search

The Voronoi diagram of a set of sites is a partition of the plane into regions, one to each site, such that the region of each site contains all points of the plane that are closer to this site than to the other ones. Such partitions are of great importance to computer science and many other fields. The challenge is

Rolf Klein

1989-01-01

274

Policy Specification Using Sequence Diagrams  

E-print Network

of Information Science and Media Studies and at the Faculty of Social Sciences at the Uni- versity of BergenPolicy Specification Using Sequence Diagrams Applied to Trust Management Bjørnar Solhaug which was funded by the Research Council of Norway. The ENFORCE project was a joint initiative between

Stølen, Ketil

275

47 CFR 32.2431 - Aerial wire.  

Code of Federal Regulations, 2014 CFR

...CONTINUED) COMMON CARRIER SERVICES UNIFORM SYSTEM OF ACCOUNTS FOR TELECOMMUNICATIONS COMPANIES Instructions for Balance Sheet Accounts § 32.2431 Aerial wire. (a) This account shall include the original cost of bare line wire and other...

2014-10-01

276

30 CFR 56.12047 - Guy wires.  

Code of Federal Regulations, 2013 CFR

...Guy wires. Guy wires of poles supporting high-voltage transmission lines shall meet the requirements for grounding or insulator protection of the National Electrical Safety Code, part 2, entitled “Safety Rules for the Installation and...

2013-07-01

277

New insulation constructions for aerospace wiring applications  

NASA Technical Reports Server (NTRS)

Outlined in this presentation is the background to insulation constructions for aerospace wiring applications, the Air Force wiring policy, the purpose and contract requirements of new insulation constructions, the test plan, and the test results.

Slenski, George

1994-01-01

278

Electrical wire insulation and electromagnetic coil  

DOEpatents

An electromagnetic coil for high temperature and high radiation application in which glass is used to insulate the electrical wire. A process for applying the insulation to the wire is disclosed which results in improved insulation properties.

Bich, George J. (Penn Hills, PA); Gupta, Tapan K. (Monroeville, PA)

1984-01-01

279

30 CFR 57.12047 - Guy wires.  

Code of Federal Regulations, 2011 CFR

...Guy wires. Guy wires of poles supporting high-voltage transmission lines shall meet the requirements for grounding or insulator protection of the National Electrical Safety Code, part 2, entitled “Safety Rules for the Installation and...

2011-07-01

280

30 CFR 56.12047 - Guy wires.  

Code of Federal Regulations, 2010 CFR

...DEPARTMENT OF LABOR METAL AND NONMETAL MINE SAFETY AND HEALTH SAFETY AND HEALTH STANDARDS-SURFACE METAL AND NONMETAL MINES Electricity § 56.12047 Guy wires. Guy wires of poles supporting high-voltage transmission lines shall meet the...

2010-07-01

281

30 CFR 57.12047 - Guy wires.  

Code of Federal Regulations, 2013 CFR

...LABOR METAL AND NONMETAL MINE SAFETY AND HEALTH SAFETY AND HEALTH STANDARDS-UNDERGROUND METAL AND NONMETAL MINES Electricity Surface and Underground § 57.12047 Guy wires. Guy wires of poles supporting high-voltage...

2013-07-01

282

30 CFR 56.12047 - Guy wires.  

Code of Federal Regulations, 2011 CFR

...DEPARTMENT OF LABOR METAL AND NONMETAL MINE SAFETY AND HEALTH SAFETY AND HEALTH STANDARDS-SURFACE METAL AND NONMETAL MINES Electricity § 56.12047 Guy wires. Guy wires of poles supporting high-voltage transmission lines shall meet the...

2011-07-01

283

30 CFR 57.12047 - Guy wires.  

Code of Federal Regulations, 2012 CFR

...LABOR METAL AND NONMETAL MINE SAFETY AND HEALTH SAFETY AND HEALTH STANDARDS-UNDERGROUND METAL AND NONMETAL MINES Electricity Surface and Underground § 57.12047 Guy wires. Guy wires of poles supporting high-voltage...

2012-07-01

284

30 CFR 56.12047 - Guy wires.  

Code of Federal Regulations, 2014 CFR

...DEPARTMENT OF LABOR METAL AND NONMETAL MINE SAFETY AND HEALTH SAFETY AND HEALTH STANDARDS-SURFACE METAL AND NONMETAL MINES Electricity § 56.12047 Guy wires. Guy wires of poles supporting high-voltage transmission lines shall meet the...

2014-07-01

285

30 CFR 56.12047 - Guy wires.  

Code of Federal Regulations, 2012 CFR

...DEPARTMENT OF LABOR METAL AND NONMETAL MINE SAFETY AND HEALTH SAFETY AND HEALTH STANDARDS-SURFACE METAL AND NONMETAL MINES Electricity § 56.12047 Guy wires. Guy wires of poles supporting high-voltage transmission lines shall meet the...

2012-07-01

286

30 CFR 57.12047 - Guy wires.  

Code of Federal Regulations, 2014 CFR

...LABOR METAL AND NONMETAL MINE SAFETY AND HEALTH SAFETY AND HEALTH STANDARDS-UNDERGROUND METAL AND NONMETAL MINES Electricity Surface and Underground § 57.12047 Guy wires. Guy wires of poles supporting high-voltage...

2014-07-01

287

30 CFR 57.12047 - Guy wires.  

Code of Federal Regulations, 2010 CFR

...LABOR METAL AND NONMETAL MINE SAFETY AND HEALTH SAFETY AND HEALTH STANDARDS-UNDERGROUND METAL AND NONMETAL MINES Electricity Surface and Underground § 57.12047 Guy wires. Guy wires of poles supporting high-voltage...

2010-07-01

288

State diagrams of linear sequential machines  

E-print Network

14 37 38 LIST OF FIGURFS FIGURE Page 1. State Diagram M . 2. Diagram of Example l. 3. Diagram of Example 2. 4. Diagram of Example 3. 5. State Diagram of a Linear Sequential Machine. 6. State Diagram of a Sequential Machine . 24 26 35 36.... A sequential machine N is a five-tuple &S, I, s, 6, x& where S is a set of states, I is a set of input symbols, A is a set of output symbols, s is the transition function, and ~ is the output function. A particular three-state machine h1=&S, I, a...

English, Linda Sue

1977-01-01

289

NEMA wire and cable standards development programs  

NASA Technical Reports Server (NTRS)

The National Electrical Manufacturers Association (NEMA) is the nation's largest trade association for manufacturers of electrical equipment. Its member companies produce components, end-use equipment and systems for the generation, transmission, distribution, control and use of electricity. The wire and cable division is presented in 6 sections: building wire and cable, fabricated conductors, flexible cords, high performance wire and cable, magnet wire, and power and control cable. Participating companies are listed.

Baird, Robert W.

1994-01-01

290

Novel Wiring Technologies for Aerospace Applications  

NASA Technical Reports Server (NTRS)

Because wire failure in aerospace vehicles could be catastrophic, smart wiring capabilities have been critical for NASA. Through the years, researchers at Kennedy Space Center (KSC) have developed technologies, expertise, and research facilities to meet this need. In addition to aerospace applications, NASA has applied its knowledge of smart wiring, including self-healing materials, to serve the aviation industry. This webinar will discuss the development efforts of several wiring technologies at KSC and provide insight into both current and future research objectives.

Gibson, Tracy L.; Parrish, Lewis M.

2014-01-01

291

Shape-Memory Wires Switch Rotary Actuator  

NASA Technical Reports Server (NTRS)

Thermomechanical rotary actuator based on shape-memory property of alloy composed of equal parts of titanium and nickel. If alloy stretched while below transition temperature, it reverts to original length when heated above transition temperature. Two capstans on same shaft wrapped with shape-memory wires. As one wire heated, it contracts and stretches opposite wire. Wires heated in alternation so they switch shaft between two extreme angular positions; "on" and "off" positions of rotary valve.

Brudnicki, Myron J.

1992-01-01

292

Force on a Current Carrying Wire  

NSDL National Science Digital Library

Students use a simple set up consisting of a current carrying wire and a magnet to explore the forces which enable biomedical imaging. In doing so, students run a current through a wire and then hold magnets in various positions to establish and explore the magnetic force acting on the wire. They move the magnets and change the current in the wire to explore how the force changes.

VU Bioengineering RET Program, School of Engineering,

293

Fabrication of tungsten wire needles  

SciTech Connect

Fine point needles for field emissoin are conventionally produced by electrolytically or chemically etching tungsten wire. Points formed in this manner have a typical tip radius of about 0.5 microns and a cone angle of some 30 degrees. The construction of needle matrix detector chambers has created a need for tungsten needles whose specifications are: 20 mil tungsten wire, 1.5 inch total length, 3 mm-long taper (resulting in a cone angle of about 5 degrees), and 25 micron-radius point (similar to that found on sewing needles). In the process described here for producing such needles, tungsten wire, immersed in a NaOH solution and in the presence of an electrode, is connected first to an ac voltage and then to a dc supply, to form a taper and a point on the end of the wire immersed in the solution. The process parameters described here are for needles that will meet the above specifications. Possible variations will be discussed under each approprite heading.

Roder, A.

1983-02-01

294

Wire Scanner Motion Control Card  

Microsoft Academic Search

Scientists require a certain beam quality produced by the accelerator rings at CERN. The discovery potential of LHC is given by the reachable luminosity at its interaction points. The luminosity is maximized by minimizing the beam size. Therefore an accurate beam size measurement is required for optimizing the luminosity. The wire scanner performs very accurate profile measurements, but as it

S E Forde; B Dehning

2006-01-01

295

Plated wire random access memories  

NASA Technical Reports Server (NTRS)

A program was conducted to construct 4096-work by 18-bit random access, NDRO-plated wire memory units. The memory units were subjected to comprehensive functional and environmental tests at the end-item level to verify comformance with the specified requirements. A technical description of the unit is given, along with acceptance test data sheets.

Gouldin, L. D.

1975-01-01

296

Rupture failure and mechanical strength of the electrode wire used in wire EDM  

Microsoft Academic Search

In the application of wire EDM, wire rupture is very troublesome and impedes further increase of cutting speed. Instead of the spark characteristics or the temperature distribution, the rupture mechanism and the mechanical strength of the wire are the focus of this investigation. Wire rupture is a mechanical failure in essence, although the process heat has significant influence on the

Y. F. Luo

1999-01-01

297

75 FR 4584 - Wire Decking From China  

Federal Register 2010, 2011, 2012, 2013, 2014

...from carbon or alloy steel wire that has been welded into a mesh pattern. The wire may be galvanized or plated (e.g., chrome, zinc or nickel coated), coated (e.g., with paint, epoxy, or plastic), or uncoated (``raw''). The wire...

2010-01-28

298

Home and School Technology: Wired versus Wireless.  

ERIC Educational Resources Information Center

Presents results of informal research on smart homes and appliances, structured home wiring, whole-house audio/video distribution, hybrid cable, and wireless networks. Computer network wiring is tricky to install unless all-in-one jacketed cable is used. Wireless phones help installers avoid pre-wiring problems in homes and schools. (MLH)

Van Horn, Royal

2001-01-01

299

Industrial electromagnetic checkout of armored wiring  

NASA Astrophysics Data System (ADS)

A method for testing whether armored wiring can withstand EMP's caused by nuclear explosions is described. The wires are checked in their production cases, using a strip line antenna as pulse source. Only one measurement per connector is made, with the connector conductors in parallel. The method is quick, repeatable, and does not damage the wiring.

Ferre, J.

1983-03-01

300

Generation of powder compaction response diagrams  

SciTech Connect

The effect of elastic compliances in the testing system is shown to have a considerable influence on the compaction diagram generated via an automatic procedure. Proper accounting of this effect allows rapid and accurate diagrams to be made.

Matsumoto, R.L.K.

1986-10-01

301

Arc tracking properties of the aging wires in aircraft  

Microsoft Academic Search

A modern commercial aircraft contains hundreds of miles of wiring. This vastly increased use of wiring, in conjunction with decreased insulation thickness, has increased the incidence of wire-related aircraft safety problems. Due to thermal, electrical, mechanical and chemical overstress, the aircraft wiring will be aged and the wire insulation will be decreased. Microscopic cracking occurs in wire insulation as the

Wang Yongxing; Dong Enyuan; Cong Jiyuan; Zou Jiyan; Dieter Koenig

2008-01-01

302

Accuracy improvement of wire-EDM by real-time wire tension control  

Microsoft Academic Search

In this paper, a closed-loop wire tension control system for a wire-EDM machine is presented to improve the machining accuracy. Dynamic models of the wire feed control apparatus and wire tension control apparatus are derived to analyze and design the control system. PI controller and one-step-ahead adaptive controller are employed to investigate the dynamic performance of the closed-loop wire tension

Mu-Tian Yan; Pin-Hsum Huang

2004-01-01

303

Frequency response in short thermocouple wires  

NASA Technical Reports Server (NTRS)

Theoretical expressions are derived for the steady state frequency response of a thermocouple wire. In particular, the effects of axial heat conduction are demonstrated for a nonuniform wire with unequal material properties and wire diameters across the junction. The amplitude ratio at low frequency omega approaches 0 agrees with the results of Scadron and Warshawsky (1952) for a steady state temperature distribution. Moreover, the frequency response for a nonuniform wire in the limit of infinite length l approaches infinity is shown to reduce to a simple expression that is analogous to the classic first order solution for a thermocouple wire with uniform properties. Theoretical expressions are also derived for the steady state frequency response of a supported thermocouple wire. In particular, the effects of axial heat conduction are demonstrated for both a supported one material wire and a two material wire with unequal material properties across the junction. For the case of a one material supported wire, an exact solution is derived which compares favorably with an approximate expression that only matches temperatures at the support junction. Moreover, for the case of a two material supported wire, an analytical expression is derived that closely correlates numerical results. Experimental measurements are made for the steady state frequency response of a supported thermocouple wire. In particular, the effects of axial heat conduction are demonstrated for both a supported one material wire (type K) and a two material wire (type T) with unequal material properties across the junction. The data for the amplitude ratio and phase angle are correlated to within 10 pct. with the theoretical predictions of Forney and Fralick (1991). This is accomplished by choosing a natural frequency omega sub n for the wire data to correlate the first order response at large gas temperature frequencies. It is found that a large bead size, however, will increase the amplitude ratio at low frequencies but decrease the natural frequency of the wire. The phase angle data are also distorted for imperfect junctions.

Forney, L. J.; Meeks, E. L.; Ma, J.; Fralick, G. C.

1992-01-01

304

The Butterfly Diagram Internal Structure  

NASA Astrophysics Data System (ADS)

A time-latitude diagram, where the spotgroup area is taken into account, is presented for cycles 12 through 23. The results show that the spotted area is concentrated in few, small portions ("knots") of the Butterfly Diagram (BD). The BD may be described as a cluster of knots. Knots are distributed in the butterfly wings in a seemingly randomly way. A knot may appear at either lower or higher latitudes than previous ones, in spite of the prevalent tendency to appear at lower and lower latitudes. Accordingly, the spotted area centroid, far from continuously drifting equatorward, drifts poleward or remains stationary in any hemisphere for significant fractions (? 1/3) of the cycle total duration. In a relevant number of semicycles, knots seem to form two roughly parallel, oblique "chains", separated by an underspotted band. This picture suggests that two (or more) "activity streams" approach the equator at a rate higher than the spot zone as a whole.

Ternullo, Maurizio

2013-06-01

305

Reasoning on UML class diagrams  

Microsoft Academic Search

UML is the de-facto standard formalism for software design and analysis. To sup- port the design of large-scale industrial applications, sophisticated CASE tools are available on the market, that provide a user-friendly environment for editing, stor- ing, and accessing multiple UML diagrams. It would be highly desirable to equip such CASE tools with automated reasoning capabilities, such as those studied

Daniela Berardi; Diego Calvanese; Giuseppe De Giacomo

2005-01-01

306

Reasoning on UML Class Diagrams  

Microsoft Academic Search

UML is the de-facto standard formalism for software design and analysis. To support the design of large-scale industrial applications, sophisticated CASE tools are available on the market, that provide a user-friendly environment for editing, storing, and accessing multiple UML diagrams. It would be highly desirable to equip such CASE tools with automated reasoning capabilities in order to detect relevant formal

Daniela Berardi; Andrea Cal; Diego Calvanese; Giuseppe De Giacomo

2003-01-01

307

T-X Phase Diagrams  

NSDL National Science Digital Library

This is a 15 page tutorial and problem set designed to get students familiar with T-X diagrams, their implications, and uses. Students start by reading but, after 10-15 minutes, the room becomes noisy as they work their way through the questions at the end. Often there are "Eureka" moments as they all of a sudden grasp some fundamental principles. It is also interesting to hear them try to explain these insights to others.

Dexter Perkins

308

Phase Diagrams and Chemographic Projections  

NSDL National Science Digital Library

This exercise is a good way to get students thinking about the phase rule, metastable and stable reactions and phase diagrams. The exercise contains a lot of reading, and is suitable for in-class work or for homework. The idea is that students can do this on their own with little help from their instructor. The students only answer a few questions making this is more of a tutorial than a worksheet.

Dexter Perkins

309

Online Diagnosis Using Influence Diagrams  

Microsoft Academic Search

\\u000a This paper presents the utilization of influence diagrams in the diagnosis of industrial processes. The diagnosis in this\\u000a context signifies the early detection of abnormal behavior, and the selection of the best recommendation for the operator\\u000a in order to correct the problem or minimize the effects. A software architecture is presented, based on the Elvira package, including the connection with

Baldramino Morales Sánchez; Pablo H. Ibargüengoytia

2004-01-01

310

Algorithm Discovery with Venn Diagrams  

NSDL National Science Digital Library

This lesson is designed to develop students' abilities to create algorithms or a set of directions to solve a problem. In this lesson, the problem is to determine the rules in a Venn diagram. This lesson provides links to discussions and activities related to the topic as well as suggested ways to integrate them into the lesson. Finally, the lesson provides links to follow-up lessons designed for use in succession with the current one.

2011-05-23

311

INCONEL 718: A solidification diagram  

NASA Astrophysics Data System (ADS)

As part of a program studying weldability of Ni-base superalloys, results of an integrated analytical approach are used to generate a constitution diagram for INCONEL 718* in the temperature range associated with solidification. Differential thermal analysis of wrought material and optical and scanning electron microscopy, electron probe microanalysis, and analytical electron microscopy of gas tungsten arc welds are used in conjunction with solidification theory to generate data points for this diagram. The important features of the diagram are an austenite (?)/Laves phase eutectic which occurs at ?19.1 wt pct Nb between austenite containing ?9.3 wt pct Nb and a Laves phase which contains ?22.4 wt pct Nb. The distribution coefficient for Nb was found to be ?0.5. The solidification sequence of INCONEL 718 was found to be (1) proeutectic ?, followed by (2) a ?/NbC eutectic at ?1250°C, followed by (3) continued ? solidification, followed by (4) a ?/Laves phase eutectic at ?1200°C. An estimate of the volume fraction eutectic is made using the Scheil solidification model, and the fraction of each phase in the eutectic is calculated via the lever rule. These are compared with experimentally determined values and found to be in good agreement.

Knorovsky, G. A.; Cieslak, M. J.; Headley, T. J.; Romig, A. D.; Hammetter, W. F.

1989-10-01

312

2IW05 Software Specification Class Diagrams  

E-print Network

2IW05 ­ Software Specification Class Diagrams Mohammad Mousavi Formal Systems Analysis (FSA) Model-Driven Software Engineering Department of Computer Science TU/Eindhoven September 7, 2012 #12;News 1 Send me specification: 1 Class diagram: data types, their operations and dependencies (extended ERDs) 2 Package diagram

Mousavi, Mohammad

313

On Class Diagrams, Crossings and Metrics  

Microsoft Academic Search

UML class diagrams, internationally specified and widely used in software engineering, are a great challenge in automatic drawing of graphs. Due to the complex nature of UML class diagrams and the requirements of software engineers, who need to read these diagrams, layout rules and algo- rithms for general graphs can not be applied without adaptions, extensions and modifications. In this

Holger Eichelberger

2005-01-01

314

Diagrams in Biology1 Laura Perini  

E-print Network

, as biologists plan experiments with flow charts, and draw models to represent hypotheses for consideration representational features of diagrams. Analysis of the relation between the forms and contents of diagrams1 Diagrams in Biology1 Laura Perini Department of Philosophy Pomona College Abstract Biologists

McBurney, Peter

315

Semantics of the Domain of Flow Diagrams  

Microsoft Academic Search

A domain of flow diagrams similar to that proposed by Scott, a domain of linear flow diagrams proposed by Goguen et al , a domain of decision table diagrams involving mfimtary branching, and a domain of processes based on the ideas of Milner and Beklc are each provided with a direct semantics, closely related to partial-function semantics, and a continuation

John C. Reynolds

1977-01-01

316

A Layout Algorithm for Data Flow Diagrams  

Microsoft Academic Search

A layout algorithm is presented that allows the automatic drawing of data flow diagrams, a diagrammatic representation widely used in the functional analysis of information systems. A grid standard is defined for such diagrams, and aesthetics for a good readability are identified. The layout algorithm receives as input an abstract graph, specifying connectivity relations between the elements of the diagram,

Carlo Batini; Enrico Nardelli; Roberto Tamassia

1986-01-01

317

A Formal Semantics of Data Flow Diagrams  

Microsoft Academic Search

This document presents a full version of the formal semantics of data ow diagrams reported in [Larsen&93]. Data Flow Diagrams are used in Structured Analysis and are based on an abstract model for data flow transformations. The semantics consists of a collection of VDM functions, transforming an abstract syntax representation of a data flow diagram into an abstract syntax representation

Peter Gorm Larsen; Nico Plat; Hans Toetenel

1994-01-01

318

Retrieving Information from Data Flow Diagrams  

Microsoft Academic Search

For reverse engineering, we need tools that can extract information from documents written before routine digital storage was feasible. Documents contain both text and diagrams; data flow diagrams play a prominent role in software documents. Using current techniques, it is possible to recover the information in a data flow diagram by scanning the printed document and processing the data obtained.

Gregory Butler; Peter Grogono; Rajjan Shinghal; Indra A. Tjandra

1995-01-01

319

SpaceWire Data Handling Demonstration System  

NASA Astrophysics Data System (ADS)

The SpaceWire standard was published in 2003 with the aim of providing a standard for onboard communications, defining the physical and data link layers of an interconnection, in order to improve reusability, reliability and to reduce the cost of mission development. The many benefits which it provides mean that it has already been used in a number of missions, both in Europe and throughout the world. Recent work by the SpaceWire community has included the development of higher level protocols for SpaceWire, such as the Remote Memory Access Protocol (RMAP) which can be used for many purposes, including the configuration of SpaceWire devices. Although SpaceWire has become very popular, the various ways in which it can be used are still being discovered, as are the most efficient ways to use it. At the same time, some in the space industry are not even aware of SpaceWire's existence. This paper describes the SpaceWire Data Handling Demonstration System that has been developed by the University of Dundee. This system simulates an onboard data handling network based on SpaceWire. It uses RMAP for all communication, and so demonstrates how SpaceWire and standardised higher level protocols can be used onboard a spacecraft. The system is not only a good advert for those who are unfamiliar with the benefits of SpaceWire, it is also a useful tool for those using SpaceWire to test ideas.

Mills, S.; Parkes, S. M.; O'Gribin, N.

2007-08-01

320

Wire Crimp Connectors Verification using Ultrasonic Inspection  

NASA Technical Reports Server (NTRS)

The development of a new ultrasonic measurement technique to quantitatively assess wire crimp connections is discussed. The amplitude change of a compressional ultrasonic wave propagating through the junction of a crimp connector and wire is shown to correlate with the results of a destructive pull test, which previously has been used to assess crimp wire junction quality. Various crimp junction pathologies (missing wire strands, incorrect wire gauge, incomplete wire insertion in connector) are ultrasonically tested, and their results are correlated with pull tests. Results show that the ultrasonic measurement technique consistently (as evidenced with pull-testing data) predicts good crimps when ultrasonic transmission is above a certain threshold amplitude level. A physics-based model, solved by finite element analysis, describes the compressional ultrasonic wave propagation through the junction during the crimping process. This model is in agreement within 6% of the ultrasonic measurements. A prototype instrument for applying the technique while wire crimps are installed is also presented.

Cramer, K. Elliott; Perey, Daniel F.; Yost, William T.

2007-01-01

321

Diagram, a Learning Environment for Initiation to Object-Oriented Modeling with UML Class Diagrams  

ERIC Educational Resources Information Center

This paper presents Diagram, a learning environment for object-oriented modelling (OOM) with UML class diagrams. Diagram an open environment, in which the teacher can add new exercises without constraints on the vocabulary or the size of the diagram. The interface includes methodological help, encourages self-correcting and self-monitoring, and…

Py, Dominique; Auxepaules, Ludovic; Alonso, Mathilde

2013-01-01

322

Parallel wire cable static load testing  

NASA Astrophysics Data System (ADS)

This report is the result of two evaluations for the analysis of parallel wire cables. The purpose of the first assessment was to evaluate the stiffness and strength of parallel wire cables. For the methodology, three test setups were executed utilizing single wires, seven wire parallel cables, and 100 wire parallel cables as specimens. The parallel wire cables were connected with molted zinc to their sockets. The cables were manufactured by Wilolamb Construction. The results indicate that the single, seven, and 100 wire specimens had similar performance in yield stress, yield strain, modulus, and ultimate strain. However, the amount of strain decreased as the number of wires increased. Because the mechanical properties of the multi wires specimens had not significant difference, it is suggested that the zinc sockets had insignificant impact on their performance. Comparing these results to a previous test executed for parallel wire cables, there were significant differences on the ultimate capacity. It is assumed that the fabrication method of the cables were different. The second evaluation had two purposes. First, it was intended to compare the results of the single wire test from OSU to the single wire test results from Sherry Laboratories. From the analysis, it was found that the ultimate and yield loads were similar between both laboratories procedures, but their strength capacity and ultimate strain were different. It was observed that the Sherry Lab used a different method to compute the mechanical properties of the wire and that the measurement of the elongation was different to the procedures from OSU. Second, the secondary analysis was to evaluate if there is any significant difference between wires sanded at the mid-length of the specimen and wires that were not sanded. From this analysis it was observed that there was no difference between the sanded and non-sanded wires, which indicated that cross-section reduction should not be necessary for the evaluation of multi wire cables. The results from this work were expected and agree with basic engineering principles, and that parallel wire cables are capable of performing as a group of wires with no significant losses.

Velasco Gil, Isabella C.

323

Sintered wire cesium dispenser photocathode  

DOEpatents

A photoelectric cathode has a work function lowering material such as cesium placed into an enclosure which couples a thermal energy from a heater to the work function lowering material. The enclosure directs the work function lowering material in vapor form through a low diffusion layer, through a free space layer, and through a uniform porosity layer, one side of which also forms a photoelectric cathode surface. The low diffusion layer may be formed from sintered powdered metal, such as tungsten, and the uniform porosity layer may be formed from wires which are sintered together to form pores between the wires which are continuous from the a back surface to a front surface which is also the photoelectric surface.

Montgomery, Eric J; Ives, R. Lawrence; Falce, Louis R

2014-03-04

324

Linking climate to population variability in marine ecosystems characterized by non-simple dynamics: Conceptual templates and schematic constructs  

NASA Astrophysics Data System (ADS)

The ability to abstract and symbolize ideas and knowledge as simplified schematic constructs is an important element of scientific creativity and communication. Availability of such generalized symbolic constructs may be particularly important when addressing a complex adaptive system such as a marine ecosystem. Various examples have appeared in the climate-fisheries literature, each more or less effectively integrating hypothesized effects of several interacting environmental and/or biological processes in controlling population dynamics of exploited fish species. A selection of these are herein presented and reviewed, including match-mismatch, connectivity, school trap, loopholes, ocean triads, stable ocean hypothesis, several classes of nonlinear feedback loops (e.g., ' P2P', school-mix feedback, predator pit), as well as several prominent large-scale integrative climatic index series ( SOI, NAO, PDO). The importance of considering the potential for adaptation and/or rapid evolution is stressed. An argument is offered for the potential utility of such widely recognizable schematic concepts in offering relatively well-understood, fairly well-defined frameworks for comparative identification and elaboration of important mechanistic linkages between climate variability and fishery dynamics, as well as in easing effective communication among scientists from different regions and disciplinary backgrounds. Certain difficulties in the application of the comparative method are discussed. It is suggested that alleviation of such difficulties may be one of the major benefits of international collaborative programs such as GLOBEC and IMBER.

Bakun, Andrew

2010-02-01

325

Origin and use of crystallization phase diagrams.  

PubMed

Crystallization phase diagrams are frequently used to conceptualize the phase relations and also the processes taking place during the crystallization of macromolecules. While a great deal of freedom is given in crystallization phase diagrams owing to a lack of specific knowledge about the actual phase boundaries and phase equilibria, crucial fundamental features of phase diagrams can be derived from thermodynamic first principles. Consequently, there are limits to what can be reasonably displayed in a phase diagram, and imagination may start to conflict with thermodynamic realities. Here, the commonly used `crystallization phase diagrams' are derived from thermodynamic excess properties and their limitations and appropriate use is discussed. PMID:25760697

Rupp, Bernhard

2015-03-01

326

Reduced-Wiring Tactile Sensor  

NASA Technical Reports Server (NTRS)

Proposed tactile sensor on robot finger puts out multiplexed analog signals transmitted to control computer on fewer wires than needed to transmit equivalent digital signals. Analog output represents data on contact area of object being gripped, on position of object, and on direction and rate of slippage if any. Consists of chains of normally open switches and resistors on surface of finger. Each resistance double preceding resistance in each chain. Constant-current sources supply power to chains.

Ohm, Timothy R.

1991-01-01

327

Pin Wire Coating Trip Report  

SciTech Connect

A meeting to discuss the current pin wire coating problems was held at the Reynolds plant in Los Angeles on 2MAR04. The attendance list for Reynolds personnel is attached. there was an initial presentation which gave a brief history and the current status of pin wire coating at Reynolds. There was a presentation by Lori Primus on the requirements and issues for the coating. There was a presentation by Jim Smith of LANL on the chemistry and to some extent process development done to date. There was a long session covering what steps should be taken in the short term and, to a lesser extent, the long term. The coating currently being used is a blend of two polymers, polyethersulfone and polyparabanic acid (PPA) and some TiO2 filler. This system was accepted and put into production when the pin wire coating was outsourced to another company in 1974. When that company no longer was interested, the wire coating was brought in-house to Reynolds. At that time polyparabanic acid was actually a commercial product available from Exxon under the trade name Tradlon. However, it appears that the material used at Reynolds was synthesized locally. Also, it appears that a single large batch was synthesized in that time period and used up to 1997 when the supply ran out. The reason for the inclusion of TiO2 is not known although it does act as a rheological thickener. However, a more controlled thickening can be obtained with materials such as fumed silica. This material would have less likelihood of causing point imperfections in the coatings. Also, the mixing technique being used for all stages of the process is a relatively low shear ball mill process and the author recommends a high shear process such as a three roll paint mill, at least for the final mixing. Since solvent is added to the powder at Reynolds, it may be that they need to have the paint mill there.

Spellman, G P

2004-03-18

328

Plucker environments, wiring and tiling diagrams, and weakly separated set-systems  

E-print Network

, and moreover, values on B can be chosen arbitrarily. 2 Central Institute of Economics and Mathematics of the RAS, 47, Nakhimovskii Prospect, 117418 Moscow, Russia; emails: danilov@cemi.rssi.ru (V.I. Danilov Oktyabrya, 117312 Moscow, Russia; email: sasha@cs.isa.ru. 1 #12;Such a basis does exist and the simplest

329

A comprehensive wiring diagram of the protocerebral bridge for visual information processing in the Drosophila brain.  

PubMed

How the brain perceives sensory information and generates meaningful behavior depends critically on its underlying circuitry. The protocerebral bridge (PB) is a major part of the insect central complex (CX), a premotor center that may be analogous to the human basal ganglia. Here, by deconstructing hundreds of PB single neurons and reconstructing them into a common three-dimensional framework, we have constructed a comprehensive map of PB circuits with labeled polarity and predicted directions of information flow. Our analysis reveals a highly ordered information processing system that involves directed information flow among CX subunits through 194 distinct PB neuron types. Circuitry properties such as mirroring, convergence, divergence, tiling, reverberation, and parallel signal propagation were observed; their functional and evolutional significance is discussed. This layout of PB neuronal circuitry may provide guidelines for further investigations on transformation of sensory (e.g., visual) input into locomotor commands in fly brains. PMID:23707064

Lin, Chih-Yung; Chuang, Chao-Chun; Hua, Tzu-En; Chen, Chun-Chao; Dickson, Barry J; Greenspan, Ralph J; Chiang, Ann-Shyn

2013-05-30

330

Thermal energy scavenger (rotating wire modules)  

SciTech Connect

A thermal energy scavenger assembly is is described including a plurality of temperature-sensitive wires made of material which exhibits shape memory due to a thermoelastic, martensitic phase transformation. The wires are placed in tension between fixed and movable plates which are, in turn, supported by a pair of wheels which are rotatably supported by a housing for rotation about a central axis. A pair of upper and lower cams are fixed to the housing and cam followers react with the respective cams. Each cam transmits forces through a pair of hydraulic pistons. One of the pistons is connected to a movable plate to which one end of the wires are connected whereby a stress is applied to the wires to strain the wires during a first phase and whereby the cam responds to the unstraining of the wires during a second phase. A housing defines fluid compartments through which hot and cold fluid passes and flows radially through the wires whereby the wires become unstrained and shorten in length when subjected to the hot fluid for causing a reaction between the cam followers and the cams to effect rotation of the wheels about the central axis of the assembly, which rotation of the wheels is extracted through beveled gearing. The wires are grouped into a plurality of independent modules with each module having a movable plate, a fixed plate and the associated hydraulic pistons and cam follower. The hydraulic pistons and cam follower of a module are disposed at ends of the wires opposite from the ends of the wires at which the same components of the next adjacent modules are disposed so that the cam followers of alternate modules react with one of the cams and the remaining cam followers of the remaining modules react with the other cam. There is also included stress limiting means in the form of coil springs associated with alternate ends of the wires for limiting the stress or strain in the wires.

Hochstein, P.A.; Milton, H.W.; Pringle, W.L.

1980-11-04

331

A Vibrating Wire System For Quadrupole Fiducialization  

SciTech Connect

A vibrating wire system is being developed to fiducialize the quadrupoles between undulator segments in the LCLS. This note provides a detailed analysis of the system. The LCLS will have quadrupoles between the undulator segments to keep the electron beam focused. If the quadrupoles are not centered on the beam axis, the beam will receive transverse kicks, causing it to deviate from the undulator axis. Beam based alignment will be used to move the quadrupoles onto a straight line, but an initial, conventional alignment must place the quadrupole centers on a straight line to 100 {micro}m. In the fiducialization step of the initial alignment, the position of the center of the quadrupole is measured relative to tooling balls on the outside of the quadrupole. The alignment crews then use the tooling balls to place the magnet in the tunnel. The required error on the location of the quadrupole center relative to the tooling balls must be less than 25 {micro}m. In this note, we analyze a system under construction for the quadrupole fiducialization. The system uses the vibrating wire technique to position a wire onto the quadrupole magnetic axis. The wire position is then related to tooling balls using wire position detectors. The tooling balls on the wire position detectors are finally related to tooling balls on the quadrupole to perform the fiducialization. The total 25 {micro}m fiducialization error must be divided between these three steps. The wire must be positioned onto the quadrupole magnetic axis to within 10 {micro}m, the wire position must be measured relative to tooling balls on the wire position detectors to within 15 {micro}m, and tooling balls on the wire position detectors must be related to tooling balls on the quadrupole to within 10 {micro}m. The techniques used in these three steps will be discussed. The note begins by discussing various quadrupole fiducialization techniques used in the past and discusses why the vibrating wire technique is our method of choice. We then give an overview of the measurement system showing how the vibrating wire is positioned onto the quadrupole axis, how the wire position detectors locate the wire relative to tooling balls without touching the wire, and how the tooling ball positions are all measured. The novel feature of this system is the vibrating wire which we discuss in depth. We analyze the wire dynamics and calculate the expected sensitivity of the system. The note should be an aid in debugging the system by providing calculations to compare measurements to.

Wolf, Zachary

2010-12-13

332

Induced EMF in a coil of wire  

NSDL National Science Digital Library

Students use a simple set up consisting of a coil of wire and a magnet to visualize induced EMF. First, students move a coil of wire near a magnet and observe the voltage that results. They then experiment with moving the wire, magnet, and a second, current carrying coil. Students connect the coil to a circuit and the current from the induced EMF charges a conductor.

VU Bioengineering RET Program, School of Engineering,

333

Space Shuttle Columbia Aging Wiring Failure Analysis  

NASA Technical Reports Server (NTRS)

A Space Shuttle Columbia main engine controller 14 AWG wire short circuited during the launch of STS-93. Post-flight examination divulged that the wire had electrically arced against the head of a nearby bolt. More extensive inspection revealed additional damage to the subject wire, and to other wires as well from the mid-body of Columbia. The shorted wire was to have been constructed from nickel-plated copper conductors surrounded by the polyimide insulation Kapton, top-coated with an aromatic polyimide resin. The wires were analyzed via scanning electron microscope (SEM), energy dispersive X-Ray spectroscopy (EDX), and electron spectroscopy for chemical analysis (ESCA); differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA) were performed on the polyimide. Exemplar testing under laboratory conditions was performed to replicate the mechanical damage characteristics evident on the failed wires. The exemplar testing included a step test, where, as the name implies, a person stepped on a simulated wire bundle that rested upon a bolt head. Likewise, a shear test that forced a bolt head and a torque tip against a wire was performed to attempt to damage the insulation and conductor. Additionally, a vibration test was performed to determine if a wire bundle would abrade when vibrated against the head of a bolt. Also, an abrasion test was undertaken to determine if the polyimide of the wire could be damaged by rubbing against convolex helical tubing. Finally, an impact test was performed to ascertain if the use of the tubing would protect the wire from the strike of a foreign object.

McDaniels, Steven J.

2005-01-01

334

Wire frame to MOVIE. BYU transfer program  

SciTech Connect

At SNLA, the primary computer-aided drafting tool is the Applicon Graphics System (AGS). The data base for mechanical parts on the AGS is a wire frame model. This report summarizes a method of adding surface information to the wire frame and passing this information up stream to MOVIE.BYU which is on a VAX computer and is used to produce shaded graphics pictures of the AGS wire frame model on a RAMTEK 9400 display terminal.

Robbins, D.; Byers, L.D.; Benner, M.S.

1982-12-01

335

Fabrication and transmission measurements of liquid crystal cells  

E-print Network

diagram of the Ramp Generator Card /!1A 49. Schematic diagram of the Chopper Amplifier Card /12 91 92 50. Schematic diagram of the Amplifier Card //3 93 CHAPTER I INTRODUCTION 1 Liquid crystals are widely used in information displays because... to produce an ac ramp for optical transmission measurements. The LC-Cell Driver mainly consists of three boards: Ramp Generator Card f/1A, Chopper Amplifier Card f/2 and Amplifier Card F3. The functional descriptions, circuit diagrams and wiring diagram...

Yoon, Dae Won

1984-01-01

336

Superconducting-wire fabrication. Final report  

SciTech Connect

Experiments were done leading to the fabrication of high-temperature superconducting composite wire. Bulk superconductor was characterized by using optical microscopy, scanning electron microscopy, and energy-dispersive x-ray spectroscopy. The chemical compatibility of superconducting materials with a number of metal sheathing candidates was tested, with silver offering the best compatibility. Wire was fabricated by drawing 0.250-inch-diameter silver tubing packed with superconducting powder. Single core wires were drawn to 0.037-inch diameter. The best critical current performance (660 A/cm2) for leaded bismuth 2-2-2-3 material was achieved by flattening single-core wire before heat treatment.

Glad, W.E.; Chase, G.G.

1990-05-01

337

Wired.  

ERIC Educational Resources Information Center

Discusses technology's impact on scoreboard design: the development of the light-emitting diode (LED) display. How the LED system works is explained, as are the advantages and disadvantages of LED compared with incandescent lamp boards. Final comments address deciding on materials for scoreboard casings. (GR)

Conklin, Aaron R.

1998-01-01

338

A layout algorithm for data flow diagrams  

SciTech Connect

A layout algorithm is presented that allows the automatic drawing of data flow diagrams, a diagrammatic representation widely used in the functional analysis of information systems. A grid standard is defined for such diagrams, and aesthetics for a good readability are identified. The layout algorithm receives as input an abstract graph, specifying connectivity relations between the elements of the diagram, and produces as output a corresponding diagram according to the aesthetics. The basic strategy is to build incrementally the layout; first, a good topology is constructed with few crossings between edges; subsequently, the shape of the diagram is determined in terms of angles appearing along edges; and finally, dimensions are given to the graph, obtaining a grid skeleton for the diagram.

Batini, C.; Nardelli, E.; Tamassia, R.

1986-04-01

339

A schematic workflow for collecting information about the interaction between copy number variants and microRNAs using existing resources.  

PubMed

MicroRNAs (miRNAs) and copy number variations (CNVs) are two extensively studied genomic components in the field of modern biology-as they have been found to be associated with many disorders such as cancer, Alzheimer, pancreatitis, HIV susceptibility, beta-thalassemia, and glomerulonephritis. Several studies suggested that an alteration in CNV-miRNA interaction could result in some human diseases such as cancer. Therefore, the possible miRNA-binding site information within the CNV genes opens new avenues in understanding such disorders. In this chapter, we present a schematic approach for collecting the information on CNV-miRNA interactions using miRWalk and TargetScan databases. PMID:25055921

Dweep, Harsh; Gretz, Norbert; Felekkis, Kyriakos

2014-01-01

340

Processing A Printed Wiring Board By Single Bath Electrodeposition  

DOEpatents

A method of processing a printed wiring board by single bath electrodeposition. Initial processing steps are implemented on the printed wiring board. Copper is plated on the printed wiring board from a bath containing nickel and copper. Nickel is plated on the printed wiring board from the bath containing nickel and copper and final processing steps are implemented on the printed wiring board.

Meltzer, Michael P. (Oakland, CA); Steffani, Christopher P. (Livermore, CA); Gonfiotti, Ray A. (Livermore, CA)

2003-04-15

341

Processing a printed wiring board by single bath electrodeposition  

DOEpatents

A method of processing a printed wiring board. Initial processing steps are implemented on the printed wiring board. Copper is plated on the printed wiring board from a bath containing nickel and copper. Nickel is plated on the printed wiring board from a bath containing nickel and copper and final processing steps are implemented on the printed wiring board.

Meltzer, Michael P. (Oakland, CA); Steffani, Christopher P. (Livermore, CA); Gonfiotti, Ray A. (Livermore, CA)

2010-12-07

342

Joule heating of solid wires in MAG welding  

Microsoft Academic Search

There are numerous studies concerning the melting rate of welding wire and various investigations have been carried out on welding current, welding current waveform, wire extension, polarity, chemical composition, wire diameter, arc length, shielding gas composition and melting rate. Joule heating of bulk wire has been a large contributory factor to the melting rate of solid wire for carbon steel

H. Shimizu; Y. Yokota; T. Itoh; T. Kurokawa; M. Ushio

2005-01-01

343

Corner error simulation of rough cutting in wire EDM  

Microsoft Academic Search

This paper describes a novel simulation method for wire electrical discharge machining (EDM) in corner cut of rough cutting. In the simulation system, we analyzed the wire electrode vibration due to the reaction force acting on the wire electrode during the wire EDM, set up a geometrical model between the wire electrode path and NC path, and investigated the relationship

Fuzhu Han; Jie Zhang; Isago Soichiro

2007-01-01

344

Nonverbal Poetry: Family Life-Space Diagrams  

Microsoft Academic Search

The purpose of this article is to examine life-space diagrams as a form of nonverbal poetry. Family life-space diagrams, by their very nature, are a nonverbal blend of lyrical, narrative, and dramatic poetry. The life-space diagram taps personal feelings, tells a story, and characterizes a particular life situation. The human memory process, with its multilevel consciousness, provides the basis for

Donald R. Bardill

2001-01-01

345

Variable stars across the observational HR diagram  

Microsoft Academic Search

An overview of pulsating variable stars across the observational Hertzprung-Russel (HR) diagram is presented, together with a summary of their global properties. The HR diagram is presented with a third colour-coded dimension, visualizing the fraction of variable, the amplitude of variability or the period of variability. The distribution of variable stars in the other observational diagrams, such as the Period-Amplitude

Laurent Eyer; Nami Mowlavi

2008-01-01

346

Object Flow Definition for Refined Activity Diagrams  

Microsoft Academic Search

Activity diagrams are a well-known means to model the control flow of system behavior. Their expressiveness can be enhanced\\u000a by using their object flow notation. In addition, we refine activities by pairs of pre- and post-conditions formulated by\\u000a interrelated object diagrams. To define a clear semantics for refined activity diagrams with object flow, we use a graph transformation\\u000a approach. Control

Stefan Jurack; Leen Lambers; Katharina Mehner; Gabriele Taentzer; Gerd Wierse

2009-01-01

347

Application of medium frequency atmospheric plasma on continuous aluminum wire cleaning for magnet wire manufacturing  

Microsoft Academic Search

Recently, the study on the application of atmospheric plasma treatment has gradually increased because it requires high cost vacuum systems, and the flexibility of application to a continuous process. This paper reports on the new application of medium frequency atmospheric plasma to the continuous surface cleaning of aluminum wire for magnet wire manufacturing. Magnet wire is widely used for transformers

In S Choi; Seok W Hwang; Jong C Park

2001-01-01

348

The Effect of Cutting Parameters on Wire Crater Sizes in Wire EDM  

Microsoft Academic Search

In this study, the effect of the cutting parameters on size of erosion craters (diameter and depth) on wire electrode were experimentally and theoretically investigated in wire electrical discharge machining (WEDM). The experiments were conducted under the different cutting parameters of pulse duration (300, 500, 700, and 900 ns), open circuit voltage (80, 100, and 270 V), wire speed (5,

N. Tosun; H. Pihtili

2003-01-01

349

An industrial application for on-line detection of instability and wire breakage in wire EDM  

Microsoft Academic Search

One of the main challenges in wire electrical discharge machining (WEDM) is avoiding wire breakage and unstable situations as both phenomena reduce process performance and can cause low quality components. This work proposes a methodology that guarantees an early detection of instability that can be used to avoid the detrimental effects associated to both unstable machining and wire breakage. The

I. Cabanes; E. Portillo; M. Marcos; J. A. Sánchez

2008-01-01

350

An improved lead wire compensation technique for conventional four wire resistance temperature detectors (RTDs)  

Microsoft Academic Search

A new lead wire compensation technique is presented for conventional four wire resistance temperature detectors (RTDs). Existing four wire resistance temperature detectors generally use bridge balance technique to achieve balance and unbalance bridge output is calibrated in terms of unknown temperature. Out of the four leads, two leads are connected to one arm of the bridge while the other two

S. K. Sen; T. K. Pan; P. Ghosal

2011-01-01

351

Variable stars across the observational HR diagram  

E-print Network

An overview of pulsating variable stars across the observational Hertzprung-Russel (HR) diagram is presented, together with a summary of their global properties. The HR diagram is presented with a third colour-coded dimension, visualizing the fraction of variable, the amplitude of variability or the period of variability. The distribution of variable stars in the other observational diagrams, such as the Period-Amplitude diagram, is also presented. Some of the progresses performed in the field of variable stars during the last decade are briefly summarized, and future projects that will improve our knowledge of variable stars are mentioned.

Laurent Eyer; Nami Mowlavi

2007-12-21

352

Hofstadter Butterfly Diagram in Noncommutative Space  

E-print Network

We study an energy spectrum of electron moving under the constant magnetic field in two dimensional noncommutative space. It take place with the gauge invariant way. The Hofstadter butterfly diagram of the noncommutative space is calculated in terms of the lattice model which is derived by the Bopp's shift for space and by the Peierls substitution for external magnetic field. We also find the fractal structure in new diagram. Although the global features of the new diagram are similar to the diagram of the commutative space, the detail structure is different from it.

Hidenori Takahashi; Masanori Yamanaka

2006-06-23

353

Phase diagram of ammonium nitrate  

NASA Astrophysics Data System (ADS)

Ammonium Nitrate (AN) is a fertilizer, yet becomes an explosive upon a small addition of chemical impurities. The origin of enhanced chemical sensitivity in impure AN (or AN mixtures) is not well understood, posing significant safety issues in using AN even today. To remedy the situation, we have carried out an extensive study to investigate the phase stability of AN and its mixtures with hexane (ANFO-AN mixed with fuel oil) and Aluminum (Ammonal) at high pressures and temperatures, using diamond anvil cells (DAC) and micro-Raman spectroscopy. The results indicate that pure AN decomposes to N2, N2O, and H2O at the onset of the melt, whereas the mixtures, ANFO and Ammonal, decompose at substantially lower temperatures. The present results also confirm the recently proposed phase IV-IV' transition above 17 GPa and provide new constraints for the melting and phase diagram of AN to 40 GPa and 400°C.

Dunuwille, Mihindra; Yoo, Choong-Shik

2013-12-01

354

Hubble's diagram and cosmic expansion  

NASA Astrophysics Data System (ADS)

Edwin Hubble's classic article on the expanding universe appeared in PNAS in 1929 [Hubble, E. P. (1929) Proc. Natl. Acad. Sci. USA 15, 168-173]. The chief result, that a galaxy's distance is proportional to its redshift, is so well known and so deeply embedded into the language of astronomy through the Hubble diagram, the Hubble constant, Hubble's Law, and the Hubble time, that the article itself is rarely referenced. Even though Hubble's distances have a large systematic error, Hubble's velocities come chiefly from Vesto Melvin Slipher, and the interpretation in terms of the de Sitter effect is out of the mainstream of modern cosmology, this article opened the way to investigation of the expanding, evolving, and accelerating universe that engages today's burgeoning field of cosmology.

Kirshner, Robert P.

2004-01-01

355

Tuning a Tetrahertz Wire Laser  

NASA Technical Reports Server (NTRS)

Tunable terahertz lasers are desirable in applications in sensing and spectroscopy because many biochemical species have strong spectral fingerprints at terahertz frequencies. Conventionally, the frequency of a laser is tuned in a similar manner to a stringed musical instrument, in which pitch is varied by changing the length of the string (the longitudinal component of the wave vector) and/ or its tension (the refractive index). However, such methods are difficult to implement in terahertz semiconductor lasers because of their poor outcoupling efficiencies. Here, we demonstrate a novel tuning mechanism based on a unique 'wire laser' device for which the transverse dimension w is much much less than lambda. Placing a movable object close to the wire laser manipulates a large fraction of the waveguided mode propagating outside the cavity, thereby tuning its resonant frequency. Continuous single-mode redshift and blueshift tuning is demonstrated for the same device by using either a dielectric or metallic movable object. In combination, this enables a frequency tuning of approximately equal to 137 GHz (3.6%) from a single laser device at approximately equal to 3.8 THz.

Qin, Qi; Williams, Benjamin S.; Kumar, Sushil; Reno, John L.; Hu, Qing

2009-01-01

356

A tutorial on flow diagrams: A tool for developing the structure of multicomponent phase diagrams  

Microsoft Academic Search

The tabular form of multiphase equilibria in temperature- or pressure-ordered sequence, often referred to as flow diagrams,\\u000a shows the interrelations that exist among the various types or classes of equilibria in a system. These interrelations establish\\u000a the structures of the various forms of phase diagrams. Flow diagrams have been used to simplify the presentation of complex\\u000a ternary phase diagrams. However,

R. G. Connell

1994-01-01

357

Improved Superconducting Wire for Wind Generators: Superconducting Wires for Direct-Drive Wind Generators  

SciTech Connect

REACT Project: Brookhaven National Laboratory will develop a low-cost superconducting wire that could be used in high-power wind generators. Superconducting wire currently transports 600 times more electric current than a similarly sized copper wire, but is significantly more expensive. Brookhaven National Laboratory will develop a high-performance superconducting wire that can handle significantly more electrical current, and will demonstrate an advanced manufacturing process that has the potential to yield a several-fold reduction in wire costs while using a using negligible amount of rare earth material. This design has the potential to make a wind turbine generator lighter, more powerful, and more efficient, particularly for offshore applications.

None

2012-01-01

358

Wiring harnesses documented by punched-card technique  

NASA Technical Reports Server (NTRS)

Cards representing a connector are punched, sorted, and then used to printout wiring documentation for that connector. When wiring changes are made, new cards are punched and the wiring documentation is reprinted to reflect the latest configuration.

Hicks, W. W.; Kloezeman, W. G.

1970-01-01

359

30 CFR 75.1430 - Wire ropes; scope.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Wire ropes; scope. 75.1430 Section 75.1430 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION...MINES Hoisting and Mantrips Wire Ropes § 75.1430 Wire ropes; scope. (a) Sections 75.1430...

2010-07-01

360

47 CFR 32.2321 - Customer premises wiring.  

Code of Federal Regulations, 2010 CFR

...account shall include all amounts transferred from the former Account 232, Station Connections, inside wiring subclass. (b) Embedded Customer Premises Wiring is that investment in customer premises wiring equipment or inventory which was capitalized...

2010-10-01

361

46 CFR 28.865 - Wiring methods and materials.  

Code of Federal Regulations, 2011 CFR

... Wiring methods and materials. 28.865 Section... Wiring methods and materials. (a) All cable...replacement wiring, new cabling and/or alterations...chapter. (f) All metallic cable armor must be...Representative. Any new installation,...

2011-10-01

362

46 CFR 28.865 - Wiring methods and materials.  

Code of Federal Regulations, 2013 CFR

... Wiring methods and materials. 28.865 Section... Wiring methods and materials. (a) All cable...replacement wiring, new cabling and/or alterations...chapter. (f) All metallic cable armor must be...Representative. Any new installation,...

2013-10-01

363

46 CFR 28.865 - Wiring methods and materials.  

Code of Federal Regulations, 2012 CFR

... Wiring methods and materials. 28.865 Section... Wiring methods and materials. (a) All cable...replacement wiring, new cabling and/or alterations...chapter. (f) All metallic cable armor must be...Representative. Any new installation,...

2012-10-01

364

46 CFR 28.865 - Wiring methods and materials.  

Code of Federal Regulations, 2014 CFR

... Wiring methods and materials. 28.865 Section... Wiring methods and materials. (a) All cable...replacement wiring, new cabling and/or alterations...chapter. (f) All metallic cable armor must be...Representative. Any new installation,...

2014-10-01

365

30 CFR 56.12053 - Circuits powered from trolley wires.  

Code of Federal Regulations, 2010 CFR

...DEPARTMENT OF LABOR METAL AND NONMETAL MINE SAFETY AND HEALTH SAFETY AND HEALTH STANDARDS-SURFACE METAL AND NONMETAL MINES Electricity § 56.12053 Circuits powered from trolley wires. Ground wires for lighting circuits powered from trolley wires...

2010-07-01

366

30 CFR 56.12053 - Circuits powered from trolley wires.  

Code of Federal Regulations, 2011 CFR

...DEPARTMENT OF LABOR METAL AND NONMETAL MINE SAFETY AND HEALTH SAFETY AND HEALTH STANDARDS-SURFACE METAL AND NONMETAL MINES Electricity § 56.12053 Circuits powered from trolley wires. Ground wires for lighting circuits powered from trolley wires...

2011-07-01

367

30 CFR 56.12053 - Circuits powered from trolley wires.  

Code of Federal Regulations, 2012 CFR

...DEPARTMENT OF LABOR METAL AND NONMETAL MINE SAFETY AND HEALTH SAFETY AND HEALTH STANDARDS-SURFACE METAL AND NONMETAL MINES Electricity § 56.12053 Circuits powered from trolley wires. Ground wires for lighting circuits powered from trolley wires...

2012-07-01

368

Stiffness Corrections for the Vibration Frequency of a Stretched Wire  

ERIC Educational Resources Information Center

Discusses the need of introducing corrections due to wire stiffness arising from end constraints and wire axis distribution curvature in the measurement of ac electrical frequency by exciting transverse standing waves in a stretched steel wire. (SL)

Hornung, H. G.; Durie, M. J.

1977-01-01

369

Wire ageing with the TEA photocathode  

SciTech Connect

Recently several RICH protypes successfully tested a gaseous TEA photocathode. However, its wire ageing behavior is unknown. In principle, TEA is a more strongly bonded molecule than TMAE, and, as a result, one would expect better wire ageing behavior. This paper explores this question.

Va`vra, J.

1996-06-01

370

Wire-antenna designs using genetic algorithms  

Microsoft Academic Search

There is a large class of electromagnetic radiators designated as wire antennas. As a rule, an inductive process is used to design these antennas. Either an integral equation is formulated or a simulator is used that gives the current distributions on the wires of the antenna, from which the electromagnetic properties of the antenna can then be determined. Once the

Edward E. Altshuler; Derek S. Linden

1997-01-01

371

Diamond tools for wire sawing metal components  

Microsoft Academic Search

In the last few years, a wire sawing process has been developed for many applications in the field of natural stone and construction materials, especially for very thick materials or components that are difficult to access. Diamond wire cutting was limited to small carbon-steel shapes, such as pipelines for transporting gas or oil under the sea. In particular, the task

H. K. Tönshoff; H. Hillmann-Apmann

2002-01-01

372

Superconducting wire with improved strain characteristics  

DOEpatents

A superconducting wire comprising a superconducting filament and a beryllium strengthened bronze matrix in which the addition of beryllium to the matrix permits a low volume matrix to exhibit reduced elastic deformation after heat treating which increases the compression of the superconducting filament on cooling and thereby improves the strain characteristics of the wire.

Luhman, Thomas (Westhampton Beach, NY); Klamut, Carl J. (E. Patchogue, NY); Suenaga, Masaki (Bellport, NY); Welch, David (Stony Brook, NY)

1982-01-01

373

Superconducting wire with improved strain characteristics  

DOEpatents

A superconducting wire comprising a superconducting filament and a beryllium strengthened bronze matrix in which the addition of beryllium to the matrix permits a low volume matrix to exhibit reduced elastic deformation after heat treating which increases the compression of the superconducting filament on cooling and thereby improve the strain characteristics of the wire.

Luhman, Thomas (Westhampton Beach, NY); Klamut, Carl J. (East Patchogue, NY); Suenaga, Masaki (Bellport, NY); Welch, David (Stony Brook, NY)

1982-01-01

374

LANSCE-R WIRE-SCANNER SYSTEM  

SciTech Connect

The National Instruments cRIO platform is used for the new LANSCE-R wire-scanner systems. All wire-scanner electronics are integrated into a single BiRa BiRIO 4U cRIO chassis specifically designed for the cRIO crate and all interface electronics. The BiRIO chassis, actuator and LabVIEW VIs provide a complete wire-scanner system integrated with EPICS. The new wire-scanner chassis includes an 8-slot cRIO crate with Virtex-5 LX 110 FPGA and Power-PC real-time controller, the LANL-developed cRIO 2-axis wire-sensor analog interface module (AFE), NI9222 cRIO 4-channel 16-bit digitizer, cRIO resolver demodulator, cRIO event receiver, front-panel touch panel display, motor driver, and all necessary software, interface wiring, connectors and ancillary components. This wirescanner system provides a complete, turn-key, 2-axis wire-scanner system including 2-channel low-noise sensewire interface with variable DC wire bias and wireintegrity monitor, 16-bit signal digitizers, actuator motor drive and control, actuator position sensing, limit-switch interfaces, event receiver, LabVIEW and EPICS interface, and both remote operation and full stand-alone operation using the touch panel.

Gruchalla, Michael E. [Los Alamos National Laboratory

2011-01-01

375

Ultrasonic aluminum wire bonding. Final report  

SciTech Connect

An aluminum wire bonding process was developed. Techniques were developed for bonding large diameter wire to a power transistor and evaporated gold. Bond schedules were made to be used in producing hybrid microcircuits. Calibration techniques utilizing an elctromagnetic transducer to measure tool movement proved successful. The magnetic transducer is best suited as a trouble-shooting tool.

Sim, J.R.

1980-09-01

376

Microfabricated wire arrays for Z-pinch.  

SciTech Connect

Microfabrication methods have been applied to the fabrication of wire arrays suitable for use in Z. Self-curling GaAs/AlGaAs supports were fabricated as an initial route to make small wire arrays (4mm diameter). A strain relief structure that could be integrated with the wire was designed to allow displacements of the anode/cathode connections in Z. Electroplated gold wire arrays with integrated anode/cathode bus connections were found to be sufficiently robust to allow direct handling. Platinum and copper plating processes were also investigated. A process to fabricate wire arrays on any substrate with wire thickness up to 35 microns was developed. Methods to handle and mount these arrays were developed. Fabrication of wire arrays of 20mm diameter was demonstrated, and the path to 40mm array fabrication is clear. With some final investment to show array mounting into Z hardware, the entire process to produce a microfabricated wire array will have been demonstrated.

Spahn, Olga Blum; Rowen, Adam M.; Cich, Michael Joseph; Peake, Gregory Merwin; Arrington, Christian L.; Nash, Thomas J.; Klem, John Frederick; Romero, Dustin Heinz

2008-10-01

377

Lansce Wire Scanning Diagnostics Device Mechanical Design  

SciTech Connect

The Accelerator Operations & Technology Division at Los Alamos National Laboratory operates a linear particle accelerator which utilizes 110 wire scanning diagnostics devices to gain position and intensity information of the proton beam. In the upcoming LANSCE improvements, 51 of these wire scanners are to be replaced with a new design, up-to-date technology and off-the-shelf components. This document outlines the requirements for the mechanical design of the LANSCE wire scanner and presents the recently developed linac wire scanner prototype. Additionally, this document presents the design modifications that have been implemented into the fabrication and assembly of this first linac wire scanner prototype. Also, this document will present the design for the second, third, and fourth wire scanner prototypes being developed. Prototypes 2 and 3 belong to a different section of the particle accelerator and therefore have slightly different design specifications. Prototype 4 is a modification of a previously used wire scanner in our facility. Lastly, the paper concludes with a plan for future work on the wire scanner development.

Rodriguez Esparza, Sergio [Los Alamos National Laboratory; Batygin, Yuri K. [Los Alamos National Laboratory; Gilpatrick, John D. [Los Alamos National Laboratory; Gruchalla, Michael E. [Los Alamos National Laboratory; Maestas, Alfred J. [Los Alamos National Laboratory; Pillai, Chandra [Los Alamos National Laboratory; Raybun, Joseph L. [Los Alamos National Laboratory; Sattler, F. D. [Los Alamos National Laboratory; Sedillo, James Daniel [Los Alamos National Laboratory; Smith, Brian G. [Los Alamos National Laboratory

2011-01-01

378

Simple Fatigue Machine for Wires and Foils  

Microsoft Academic Search

A simple fatigue machine suitable for testing wires, filaments, foils, and other specimens of small cross section has been designed and built. The axial-load machine applies an alternating stress about a tensile mean stress and is of the constant amplitude of force type utilizing electromagnetic loading. One data curve for commercially pure titanium wire is presented to demonstrate the performance

R. L. Benedetti; D. L. Creighton

1970-01-01

379

Temperature Dependent Wire Delay Estimation in Floorplanning  

E-print Network

Temperature Dependent Wire Delay Estimation in Floorplanning Andreas Thor Winther, Wei Liu, Alberto, Arizona State University, Tempe, USA Abstract--Due to large variations in temperature in VLSI cir- cuits and the linear relationship between metal resistance and temperature, the delay through wires of the same length

Nannarelli, Alberto

380

Wire-Guide Manipulator For Automated Welding  

NASA Technical Reports Server (NTRS)

Compact motor drive positions guide for welding filler wire. Drive part of automated wire feeder in partly or fully automated welding system. Drive unit contains three parallel subunits. Rotations of lead screws in three subunits coordinated to obtain desired motions in three degrees of freedom. Suitable for both variable-polarity plasma arc welding and gas/tungsten arc welding.

Morris, Tim; White, Kevin; Gordon, Steve; Emerich, Dave; Richardson, Dave; Faulkner, Mike; Stafford, Dave; Mccutcheon, Kim; Neal, Ken; Milly, Pete

1994-01-01

381

Underwater Electrical Wire Explosion and Its Applications  

Microsoft Academic Search

Results of an investigation of underwater electrical wire explosions using high-power microsecond and nanosecond generators are reported. Different diagnostics, including electrical, optical, and spectroscopic, together with hydrodynamic and magnetohydrodynamic simulations, were used to characterize parameters of the discharge channel and generated strong shock waves. It was shown that the increase in the rate of the energy input into exploding wire

Yakov E. Krasik; Alon Grinenko; Arkady Sayapin; Sergey Efimov; Alexander Fedotov; Viktor Z. Gurovich; Vladimir I. Oreshkin

2008-01-01

382

Schematic Storyboarding for Video Visualization and Editing Dan B Goldman1 Brian Curless1 David Salesin1,2 Steven M. Seitz1  

E-print Network

of a shot from the 1963 film, Charade. Top: Schematic storyboard for the same shot, composed using the four. Bottom: Hand-drawn storyboard for the same shot, composed using Adobe Photoshop and Corel Painter content can be expressed all at once. In contrast, the simple act of observing an animated display takes

Fan, Jianping

383

Freksa, C., Moratz, R., & Barkowsky, T. (2000). Schematic maps for robot navigation. In C. Freksa, W. Brauer, C. Habel, & K. F. Wender (Eds.), Spatial Cognition II -Integrating abstract  

E-print Network

Freksa, C., Moratz, R., & Barkowsky, T. (2000). Schematic maps for robot navigation. In C. Freksa, W. Brauer, C. Habel, & K. F. Wender (Eds.), Spatial Cognition II - Integrating abstract theories for Robot Navigation 1 Christian Freksa, Reinhard Moratz, and Thomas Barkowsky University of Hamburg

Bremen, Universität

2000-01-01

384

Wire and Cable Cold Bending Test  

NASA Technical Reports Server (NTRS)

One of the factors in assessing the applicability of wire or cable on the lunar surface is its flexibility under extreme cold conditions. Existing wire specifications did not address their mechanical behavior under cold, cryogenic temperature conditions. Therefore tests were performed to provide this information. To assess this characteristic 35 different insulated wire and cable pieces were cold soaked in liquid nitrogen. The segments were then subjected to bending and the force was recorded. Any failure of the insulation or jacketing was also documented for each sample tested. The bending force tests were performed at room temperature to provide a comparison to the change in force needed to bend the samples due to the low temperature conditions. The results from the bending tests were plotted and showed how various types of insulated wire and cable responded to bending under cold conditions. These results were then used to estimate the torque needed to unroll the wire under these low temperature conditions.

Colozza, Anthony

2010-01-01

385

Method of preparing composite superconducting wire  

DOEpatents

An improved method of preparing composite multifilament superconducting wire of Nb.sub.3 Sn in a copper matrix which eliminates the necessity of coating the drawn wire with tin. A generalized cylindrical billet of an alloy of copper containing at least 15 weight percent niobium, present in the copper as discrete, randomly distributed and oriented dendritic-shaped particles, is provided with at least one longitudinal opening which is filled with tin to form a composite drawing rod. The drawing rod is then drawn to form a ductile composite multifilament wire containing a filament of tin. The ductile wire containing the tin can then be wound into magnet coils or other devices before heating to diffuse the tin through the wire to react with the niobium forming Nb.sub.3 Sn. Also described is an improved method for making large billets of the copper-niobium alloy by consumable-arc casting.

Verhoeven, John D. (Ames, IA); Gibson, Edwin D. (Ames, IA); Finnemore, Douglas K. (Ames, IA); Ostenson, Jerome E. (Ames, IA); Schmidt, Frederick A. (Ames, IA); Owen, Charles V. (Ames, IA)

1985-08-06

386

Development Status of AMSC Amperium® Wire  

NASA Astrophysics Data System (ADS)

AMSC produces Second Generation (2G) HTS wire for utility power applications as well as coil, motor and generator solutions. In this paper, various types of AMSC's Amperium® wire suitable to power cables, fault current limiters and coils are reviewed. In addition, recently developed performance-improvements in amperage, reduced ac power loss and mechanical properties are summarized. The introduction of thicker HTS layers coupled with optimized heat treatments to enhance critical current density dramatically improve both cable and coil wire current-carrying capability. A non-magnetic RABiTSTM substrate has now been developed to the point where it is compatible with the manufacturing process and capable of sustaining large critical currents. Finally, the ability of Amperium® wires to withstand cable-winding stresses, and to exhibit the high transverse c-axis strength critical to the reliability of the wire in coils, are discussed.

Fleshler, S.; DeMoranville, K.; Gannon, J., Jr.; Li, X.; Podtburg, E.; Rupich, M. W.; Sathyamurthy, S.; Thieme, C. L. H.; Tucker, D.; Whitman, L.

2014-05-01

387

Electronic transport in inhomogeneous quantum wires.  

SciTech Connect

We study the transport properties of a long non-uniform quantum wire where the electron-electron interactions and the density vary smoothly at large length scales. We show that these inhomogeneities lead to a finite resistivity of the wire, due to a weak violation of momentum conservation in the collisions between electrons. Estimating the rate of change of momentum associated with non-momentum-conserving scattering processes, we derive the expression for the resistivity of the wire in the regime of weakly interacting electrons and find a contribution linear in temperature for a broad range of temperatures below the Fermi energy. By estimating the energy dissipated throughout the wire by low-energy excitations, we then develop a different method for deriving the resistivity of the wire, which can be combined with the bosonization formalism. This allows us to compare our results with previous works relying on an extension of the Tomonaga-Luttinger model to inhomogeneous systems.

Rech, J.; Matveev, K. A.; Materials Science Division

2008-04-23

388

Wiring Damage Analyses for STS OV-103  

NASA Technical Reports Server (NTRS)

This study investigated the Shuttle Program s belief that Space Transportation System (STS) wiring damage occurrences are random, that is, a constant occurrence rate. Using Problem Reporting and Corrective Action (PRACA)-derived data for STS Space Shuttle OV-103, wiring damage was observed to increase over the vehicle s life. Causal factors could include wiring physical deterioration, maintenance and inspection induced damage, and inspection process changes resulting in more damage events being reported. Induced damage effects cannot be resolved with existent data. Growth analysis (using Crow-AMSAA, or CA) resolved maintenance/inspection effects (e.g., heightened awareness) on all wire damages and indicated an overall increase since Challenger Return-to-Flight (RTF). An increasing failure or occurrence rate per flight cycle was seen for each wire damage mode; these (individual) rates were not affected by inspection process effects, within statistical error.

Thomas, Walter, III

2006-01-01

389

Effect of Surface Quality of Brass Coating Wire on Wire EDM Characteristics  

NASA Astrophysics Data System (ADS)

The purpose of this study is to develop a new type of wire electrode, in which piano wire with very high tensile strength is coated with electrically conductive layer, such as brass or zinc, in order to attain high speed and high precision wire EDM. In this report, using a trial-made thin wire of 50?m in diameter, the optimum thickness and quality of brass layer were experimentally investigated for higher performance fine wire EDM. Furthermore, the influence of the tensile strength of piano wire used as a core wire was discussed. As a result, the coated brass with copper content of 60-70% is effective and the thickness of coated brass is needed to be more than 1.45?m for high removal rate.

Okada, Akira; Yamauchi, Toshiyuki; Arizono, Kimihiko; Uno, Yoshiyuki

390

Labeled floor diagrams for plane curves  

Microsoft Academic Search

Floor diagrams are a class of weighted oriented graphs introduced by E. Brugalle and the second author. Tropical geometry arguments lead to combinatorial descriptions of (ordinary and relative) Gromov-Witten invariants of projective spaces in terms of floor diagrams and their generalizations. In a number of cases, these descriptions can be used to obtain explicit (direct or recursive) formulas for the

Sergey Fomin; Grigory Mikhalkin

2009-01-01

391

Empirical Validation of Class Diagram Metrics  

Microsoft Academic Search

As a key early artefact in the development of OO software, the quality of class diagrams is crucial for all later design work and could be a major determinant for the quality of the software product that is finally delivered. Quantitative measurement instruments are useful to assess class diagram quality in an objective way, thus avoiding bias in the quality

Marcela Genero; Mario Piattini; Coral Calero

2002-01-01

392

Activity Diagrams Patterns for Modeling Business Processes  

E-print Network

on Software Engineering Research, Management and Applications (SERA 2013). The final publication is available consider in this paper the UML since it offers also many other diagrams (classes, state ma- chine, etc so as to build complex activity diagrams. Our ap- proach also takes classes into account. We have

André, Étienne

393

Timing Diagrams: Formalization and Algorithmic Verification  

E-print Network

generated by B¨uchi automata in timing diagram languages is decidable. The result relies on a correlation foundation for both reasoning and theoretical analyses. This paper presents a timing dia­ gram logicTiming Diagrams: Formalization and Algorithmic Verification Kathi Fisler \\Lambda Department

Fisler, Kathryn

394

DECISION DIAGRAMS AND PASS TRANSISTOR LOGIC SYNTHESIS  

E-print Network

DECISION DIAGRAMS AND PASS TRANSISTOR LOGIC SYNTHESIS V. Bertacco S. Minato P. Verplaetse L. Benini by ARPA, under grant No. DABT63-95-C-0049. #12;Decision Diagrams and Pass Transistor Logic Synthesis V transistors and domino logic. The synthesis of these cells is based on BDD and ZBDD representations

De Micheli, Giovanni

395

Resummation of Cactus Diagrams in Lattice QCD  

E-print Network

We show how to perform a resummation, to all orders in perturbation theory, of a certain class of gauge invariant diagrams in Lattice QCD. These diagrams are often largely responsible for lattice artifacts. Our resummation leads to an improved perturbative expansion. Applied to a number of cases of interest, this expansion yields results remarkably close to corresponding nonperturbative estimates.

H. Panagopoulos; E. Vicari

1998-06-08

396

THE QCD PHASE DIAGRAM AT FINITE DENSITY.  

SciTech Connect

We study the density of states method to explore the phase diagram of the chiral transition on the temperature and quark chemical potential plane. Four quark flavours are used in the analysis. Though the method is quite expensive small lattices show an indication for a triple-point connecting three different phases on the phase diagram.

SCHMIDT, C.; FODOR, Z.; KATZ, S.

2005-07-25

397

Penrose diagram for a transient black hole  

Microsoft Academic Search

A Penrose diagram is constructed for a spatially coherent black hole that smoothly begins an accretion, and then excretes symmetrically as measured by a distant observer, with the initial and final states described by a metric of the Minkowski form. Coordinate curves on the diagram are computationally derived. Causal relationships between spacetime regions are briefly discussed. The life cycle of

James Lindesayand; Paul Sheldon

2010-01-01

398

Building Path Diagrams for Multilevel Models  

ERIC Educational Resources Information Center

Multilevel models have come to play an increasingly important role in many areas of social science research. However, in contrast to other modeling strategies, there is currently no widely used approach for graphically diagramming multilevel models. Ideally, such diagrams would serve two functions: to provide a formal structure for deriving the…

Curran, Patrick J.; Bauer, Daniel J.

2007-01-01

399

Formalizing Spider Diagrams Joseph (Yossi) Gil  

E-print Network

]. The Swiss mathemati- cian Leonhard Euler (1707-1783) introduced the notation we now call Euler circles (or- lar and intuitive Venn diagrams and Euler circles. The language design emphasized scalability Euler diagrams) [1] to illus- trate relations between sets. This notation uses the topo- logical

Kent, University of

400

Simplifying computation of dynamic influence diagrams  

Microsoft Academic Search

Influence diagrams (EDs) are based on Bayesian networks (BNs) and decision theory, and they are powerful tools for representing and processing problems of agents. An approach of decomposition and incorporation is developed to solve problems of multi-agent system based on influence diagrams and dynamic Bayesian networks (DBNs) that is intractable for exact calculation. In additional, we discuss realizing decision of

Hong-Liang Yao; Hao Wang; You-Sheng Zhang; Xue-Gang Hu; Bao-Fu Fang

2004-01-01

401

Abstract Voronoi Diagrams Revisited Elmar Langetepe  

E-print Network

bisectors have infinitely many intersections, so that it was not covered by the existing AVD theory Voronoi Diagrams (AVDs) were introduced by the first author in [20], as a unifying concept for both, structure theory and algorithmic computation. The basic observation behind AVDs was that Voronoi diagrams

Klein, Rolf

402

A Formal Semantics of Data Flow Diagrams  

Microsoft Academic Search

semantics Abstract. This paper presents a formal semantics of data flow diagrams as used in Structured Analysis, based on an abstract model for data flow transformations. The semantics consists of a collection of VDM functions, transforming an abstract syntax representation of a data flow diagram into an abstract syntax representation of a VDM specification. Since this transformation is executable, it

403

Local helioseismology using ring diagram analysis  

Microsoft Academic Search

Ring diagram analysis is an extension of global helioseismology that is applied to small areas on the Sun. It can be used to infer the horizontal components of large scale flows as well as the structure, and variations thereof, in the outer convection zone. We describe below the ring-diagram analysis technique, and some results obtained using this technique.

H. M. Antia; S. Basu

2007-01-01

404

Architecture flow diagrams under teamwork reg sign  

Microsoft Academic Search

The Teamwork CASE tool allows Data Flow Diagrams (DFDs) to be maintained for structured analysis. Fermilab has extended teamwork under UNIX{trademark} to permit Hatley and Pirbhai Architecture Flow Diagrams (AFDs) to be associated with DFDs and subsequently maintained. This extension, called TWKAFD, allows a user to open an AFD, graphically edit it, and replace it into a TWKAFD maintained library.

Nicinski

1992-01-01

405

HMI ring diagram analysis II. Data products  

Microsoft Academic Search

The combination of high resolution, spatial coverage, and continuity of photospheric Doppler and other data from HMI has allowed us to embark on a program of systematic exploration of solar subsurface flows and thermal structure variations using the technique of ring-diagram analysis on an unprecedented scale. There are two ring-diagrams pipelines, as described in [1]. In this paper we discuss

R. S. Bogart; C. Baldner; S. Basu; D. A. Haber; M. C. Rabello-Soares

2011-01-01

406

Chord Diagrams and Coxeter Links Eriko Hironaka  

E-print Network

Chord Diagrams and Coxeter Links Eriko Hironaka April 23, 2003 Abstract This paper presents a construction of #12;bered links (K; #6;) out of chord diagrams L. Let be the incidence graph of L. Under; S). Lehmer's problem is solved for the monodromy of these Coxeter links. 1 1 Introduction A chord

Hironaka, Eriko

407

Chord Diagrams and Coxeter Links Eriko Hironaka  

E-print Network

Chord Diagrams and Coxeter Links Eriko Hironaka February 28, 2003 Abstract This paper presents a construction of #12;bered links (K; #6;) out of chord diagrams L. Let be the incidence graph of L. Under; S). Lehmer's problem is solved for the monodromy of these Coxeter links. 1 1 Introduction A chord

Aluffi, Paolo

408

Reading fitness landscape diagrams through HSAB concepts  

NASA Astrophysics Data System (ADS)

Fitness landscapes are conceived as range of mountains, with local peaks and valleys. In terms of potential, such topographic variations indicate places of local instability or stability. The chemical potential, or electronegativity, its value changed of sign, carries similar information. In addition to chemical descriptors defined through hard-soft acid-base (HSAB) concepts and computed through density functional theory (DFT), the principles that rule chemical reactions allow the design of such landscape diagrams. The simplest diagram uses electrophilicity and hardness as coordinates. It allows examining the influence of maximum hardness or minimum electrophilicity principles. A third dimension is introduced within such a diagram by mapping the topography of electronegativity, polarizability or charge exchange. Introducing charge exchange during chemical reactions, or mapping a third parameter (f.i. polarizability) reinforces the information carried by a simple binary diagram. Examples of such diagrams are provided, using data from Earth Sciences, simple oxides or ligands.

Vigneresse, Jean-Louis

2014-10-01

409

Back to the Future: Past and Future Era-Based Schematic Support and Associative Memory for Prices in Younger and Older Adults  

PubMed Central

Older adults typically display various associative memory deficits, but these deficits can be reduced when conditions allow for the use of prior knowledge or schematic support. To determine how era-specific schematic support and future simulation might influence associative memory, we examined how younger and older adults remember prices from the past as well as the future. Younger and older adults were asked to imagine the past or future, and then studied items and prices from approximately 40 years ago (market value prices from the 1970s) or 40 years in the future. In Experiment 1, all items were common items (e.g., movie ticket, coffee) and the associated prices reflected the era in question, whereas in Experiment 2, some item-price pairs were specific to the time period (e.g., typewriter, robot maid), to test different degrees of schematic support. After studying the pairs, participants were shown each item and asked to recall the associated price. In both experiments, older adults showed similar performance as younger adults in the past condition for the common items, whereas age-related differences were greater in the future condition and for the era-specific items. The findings suggest that in order for schematic support to be effective, recent (and not simply remote) experience is needed in order to enhance memory. Thus, whereas older adults can benefit from “turning back the clock,” younger adults better remember future-oriented information compared with older adults, outlining age-related similarities and differences in associative memory and the efficient use of past and future-based schematic support. PMID:24128073

Castel, Alan D.; McGillivray, Shannon; Worden, Kendell M.

2014-01-01

410

In Situ Electrochemical Deposition of Microscopic Wires  

NASA Technical Reports Server (NTRS)

A method of fabrication of wires having micron and submicron dimensions is built around electrochemical deposition of the wires in their final positions between electrodes in integrated circuits or other devices in which the wires are to be used. Heretofore, nanowires have been fabricated by a variety of techniques characterized by low degrees of controllability and low throughput rates, and it has been necessary to align and electrically connect the wires in their final positions by use of sophisticated equipment in expensive and tedious post-growth assembly processes. The present method is more economical, offers higher yields, enables control of wire widths, and eliminates the need for post-growth assembly. The wires fabricated by this method could be used as simple electrical conductors or as transducers in sensors. Depending upon electrodeposition conditions and the compositions of the electroplating solutions in specific applications, the wires could be made of metals, alloys, metal oxides, semiconductors, or electrically conductive polymers. In this method, one uses fabrication processes that are standard in the semiconductor industry. These include cleaning, dry etching, low-pressure chemical vapor deposition, lithography, dielectric deposition, electron-beam lithography, and metallization processes as well as the electrochemical deposition process used to form the wires. In a typical case of fabrication of a circuit that includes electrodes between which microscopic wires are to be formed on a silicon substrate, the fabrication processes follow a standard sequence until just before the fabrication of the microscopic wires. Then, by use of a thermal SiO-deposition technique, the electrodes and the substrate surface areas in the gaps between them are covered with SiO. Next, the SiO is electron-beam patterned, then reactive-ion etched to form channels having specified widths (typically about 1 m or less) that define the widths of the wires to be formed. Drops of an electroplating solution are placed on the substrate in the regions containing the channels thus formed, then the wires are electrodeposited from the solution onto the exposed portions of the electrodes and into the channels. The electrodeposition is a room-temperature, atmospheric-pressure process. The figure shows an example of palladium wires that were electrodeposited into 1-mm-wide channels between gold electrodes.

Yun, Minhee; Myung, Nosang; Vasquez, Richard

2005-01-01

411

Phase diagram of ammonium nitrate  

SciTech Connect

Ammonium Nitrate (AN) is a fertilizer, yet becomes an explosive upon a small addition of chemical impurities. The origin of enhanced chemical sensitivity in impure AN (or AN mixtures) is not well understood, posing significant safety issues in using AN even today. To remedy the situation, we have carried out an extensive study to investigate the phase stability of AN and its mixtures with hexane (ANFO–AN mixed with fuel oil) and Aluminum (Ammonal) at high pressures and temperatures, using diamond anvil cells (DAC) and micro-Raman spectroscopy. The results indicate that pure AN decomposes to N{sub 2}, N{sub 2}O, and H{sub 2}O at the onset of the melt, whereas the mixtures, ANFO and Ammonal, decompose at substantially lower temperatures. The present results also confirm the recently proposed phase IV-IV{sup ?} transition above 17 GPa and provide new constraints for the melting and phase diagram of AN to 40 GPa and 400°C.

Dunuwille, Mihindra; Yoo, Choong-Shik, E-mail: csyoo@wsu.edu [Department of Chemistry and Institute for Shock Physics, Washington State University, Pullman, Washington 99164 (United States)] [Department of Chemistry and Institute for Shock Physics, Washington State University, Pullman, Washington 99164 (United States)

2013-12-07

412

The morphological diagram of spinels  

SciTech Connect

Catalytic anisotropy in mild oxidation reactions results from the varying activity of different crystal faces. Here, spinels exposing (100), (110), and (111) faces have been considered and their Curie-Wulff plots have been drawn, admitting that the relative G(hkl) surface free energies may change in a wide range as a function of composition, inversion, and segregation degree. The normalized free surface energies are defined as A = G(100)/G(111), B = G(110)/G(111), and C = G(111)/G(111) = 1 = const. This made it possible to construct bidimensional morphological diagrams (morphology = f(A,B) at C = const) in the exposed-face-type, solid-type, and exposure-percentage versions. Eleven morphological habits of grains have been identified, including (100)-cube, (110)-dodecahedron, (111)-hexagons, 18-hedron, 20-hedron, and up to 26-hedra bordered with (i) 6 (100)-octagons, 12 (110)-rectangles, and 8 (111)-hexagons, (ii) 6 (100)-squares, 12 (110)-rectangles, and 8 (111)-triangles, or (iii) 6 (100)-squares, 12 (110)-octagons, and 8 (100)-triangles. The analysis is valid for all compounds crystallizing in the cubic system and preferentially exposing the three enumerated faces.

Ziolkowski, J. [Institute of Catalysis and Surface Chemistry, Krakow (Poland)] [Institute of Catalysis and Surface Chemistry, Krakow (Poland)

1996-02-01

413

Towards the QCD phase diagram  

E-print Network

We summarize our recent results on the phase diagram of QCD with N_f=2+1 quark flavors, as a function of temperature T and quark chemical potential \\mu. Using staggered fermions, lattices with temporal extent N_t=4, and the exact RHMC algorithm, we first determine the critical line in the quark mass plane (m_{u,d},m_s) where the finite temperature transition at \\mu=0 is second order. We confirm that the physical point lies on the crossover side of this line. Our data are consistent with a tricritical point at (m_{u,d},m_s) = (0,\\sim 500) MeV. Then, using an imaginary chemical potential, we determine in which direction this second-order line moves as the chemical potential is turned on. Contrary to standard expectations, we find that the region of first-order transitions shrinks in the presence of a chemical potential, which is inconsistent with the presence of a QCD critical point at small chemical potential. The emphasis is put on clarifying the translation of our results from lattice to physical units, and on discussing the apparent contradiction of our findings with earlier lattice studies.

Philippe de Forcrand; Owe Philipsen

2006-11-22

414

A 1Gb\\/s Optical Transceiver Array Chipset for Automotive Wired Interconnects  

Microsoft Academic Search

A 4-channel 1Gb\\/s optical transceiver chipset is realized in a 0.18-mum standard CMOS technology for the wired networks in automotive vehicles. The transmitter (LD driver) operates for 1-Gb\\/s LVDS\\/CML signals with AMC and APC loops. The output optical eye-diagrams demonstrate 0.2UI jitter characteristics with max. 80mApp modulation currents for 1-Gb\\/s 211 $1 input PRBS. Meanwhile, the receiver (TIA) demonstrates 76.6dBOmega

Boo-young Choi; Jung-won Han; Sung Min Park; Kang Yeob Park; Won-S. Oh; J.-C. Choi

2007-01-01

415

Wire tension monitor for proportional chambers of the ANKE spectrometer  

NASA Astrophysics Data System (ADS)

A high accuracy wire tension monitor for wire detectors has been developed. The tension is deduced from the wire mechanical resonance frequency. The resonance frequency is measured in the electrostatic excitation mode of wire oscillation. The Sensor converts the wire capacitance into a voltage which is analyzed in process of searching for the wire resonance frequency. The solution of the equation of forced wire oscillation is presented and analyzed in detail to improve accuracy of the wire tension measurement. The monitor has been used for testing multiwire proportional chambers of the ANKE spectrometer at COSY. It allows the wire tension to be measured with an accuracy of 0.7% which meets most requirements of the wire detectors. The possibility of the wire aging diagnostics at tension measurement is considered.

Volkov, A. D.

2013-02-01

416

LANSCE wire scanning diagnostics device mechanical design  

SciTech Connect

The Los Alamos Neutron Science Center (LANSCE) is one of the major experimental science facilities at the Los Alamos National Laboratory (LANL). The core of LANSCE's work lies in the operation of a powerful linear accelerator, which accelerates protons up to 84% the speed oflight. These protons are used for a variety of purposes, including materials testing, weapons research and isotopes production. To assist in guiding the proton beam, a series of over one hundred wire scanners are used to measure the beam profile at various locations along the half-mile length of the particle accelerator. A wire scanner is an electro-mechanical device that moves a set of wires through a particle beam and measures the secondary emissions from the resulting beam-wire interaction to obtain beam intensity information. When supplemented with data from a position sensor, this information is used to determine the cross-sectional profile of the beam. This measurement allows beam operators to adjust parameters such as acceleration, beam steering, and focus to ensure that the beam reaches its destination as effectively as possible. Some of the current wire scanners are nearly forty years old and are becoming obsolete. The problem with current wire scanners comes in the difficulty of maintenance and reliability. The designs of these wire scanners vary making it difficult to keep spare parts that would work on all designs. Also many of the components are custom built or out-dated technology and are no longer in production.

Rodriguez Esparza, Sergio [Los Alamos National Laboratory

2010-01-01

417

Wire Crimp Termination Verification Using Ultrasonic Inspection  

NASA Technical Reports Server (NTRS)

The development of a new ultrasonic measurement technique to quantitatively assess wire crimp terminations is discussed. The amplitude change of a compressional ultrasonic wave propagating through the junction of a crimp termination and wire is shown to correlate with the results of a destructive pull test, which is a standard for assessing crimp wire junction quality. Various crimp junction pathologies such as undercrimping, missing wire strands, incomplete wire insertion, partial insulation removal, and incorrect wire gauge are ultrasonically tested, and their results are correlated with pull tests. Results show that the nondestructive ultrasonic measurement technique consistently (as evidenced with destructive testing) predicts good crimps when ultrasonic transmission is above a certain threshold amplitude level. A physics-based model, solved by finite element analysis, describes the compressional ultrasonic wave propagation through the junction during the crimping process. This model is in agreement within 6% of the ultrasonic measurements. A prototype instrument for applying this technique while wire crimps are installed is also presented. The instrument is based on a two-jaw type crimp tool suitable for butt-splice type connections. Finally, an approach for application to multipin indenter type crimps will be discussed.

Perey, Daniel F.; Cramer, K. Elliott; Yost, William T.

2007-01-01

418

In-Situ Wire Damage Detection System  

NASA Technical Reports Server (NTRS)

An In-Situ Wire Damage Detection System (ISWDDS) has been developed that is capable of detecting damage to a wire insulation, or a wire conductor, or to both. The system will allow for realtime, continuous monitoring of wiring health/integrity and reduce the number of false negatives and false positives while being smaller, lighter in weight, and more robust than current systems. The technology allows for improved safety and significant reduction in maintenance hours for aircraft, space vehicles, satellites, and other critical high-performance wiring systems for industries such as energy production and mining. The integrated ISWDDS is comprised of two main components: (1) a wire with an innermost core conductor, an inner insulation film, a conductive layer or inherently conductive polymer (ICP) covering the inner insulation film, an outermost insulation jacket; and (2) smart connectors and electronics capable of producing and detecting electronic signals, and a central processing unit (CPU) for data collection and analysis. The wire is constructed by applying the inner insulation films to the conductor, followed by the outer insulation jacket. The conductive layer or ICP is on the outer surface of the inner insulation film. One or more wires are connected to the CPU using the smart connectors, and up to 64 wires can be monitored in real-time. The ISWDDS uses time domain reflectometry for damage detection. A fast-risetime pulse is injected into either the core conductor or conductive layer and referenced against the other conductor, producing transmission line behavior. If either conductor is damaged, then the signal is reflected. By knowing the speed of propagation of the pulse, and the time it takes to reflect, one can calculate the distance to and location of the damage.

Williams, Martha; Roberson, Luke; Tate, Lanetra; Smith, Trent; Gibson, Tracy; Medelius, Pedro; Jolley, Scott

2012-01-01

419

The amplituhedron from momentum twistor diagrams  

NASA Astrophysics Data System (ADS)

We propose a new diagrammatic formulation of the all-loop scattering amplitudes/Wilson loops in planar = 4 SYM, dubbed the "momentum-twistor diagrams". These are on-shell-diagrams obtained by gluing trivalent black and white vertices in momentum twistor space, which, in the reduced diagram case, are known to be related to diagrams in the original twistor space. The new diagrams are manifestly Yangian invariant, and they naturally represent factorization and forward-limit contributions in the all-loop BCFW recursion relations in momentum twistor space, in a fashion that is completely different from those in momentum space. We show how to construct and evaluate momentum-twistor diagrams, and how to use them to obtain tree-level amplitudes and loop-level integrands; in particular the latter involve isolated bubble-structures for loop variables arising from forward limits, or the entangled removal of particles. From each diagram, the generalized "boundary measurement" directly gives the C, D matrices, thus a cell in the amplituhedron associated with the amplitude, and we expect that our diagrammatic representations of the amplitude provide triangulations of the amplituhedron. To demonstrate the computational power of the formalism, we give explicit results for general two-loop integrands, and the cells of the amplituhedron for two-loop MHV amplitudes.

Bai, Yuntao; He, Song

2015-02-01

420

Total recall: an update on orthodontic wires.  

PubMed

Orthodontic therapy is a force management procedure largely based on use of arch wires for storing and distributing biologically tolerable forces by means of which position of teeth is altered. Advances in material science and technology has resulted in an array of newer arch wire materials, opening new vistas, in orthodontic treatment. Materials with widely diverging properties are in the market today and their usage has profound implications on appliance mechanics, and are very much different from stainless steel which is popular even today. The dentists who practise orthodontics have to therefore clearly outline the phases of treatment and select the arch wire most suited for attaining specific treatment goals. PMID:25745725

Jyothikiran, H; Shantharaj, Ravi; Batra, Panchali; Subbiah, Pradeep; Lakshmi, Bhagya; Kudagi, Vishal

2014-01-01

421

Detectors Ensure Function, Safety of Aircraft Wiring  

NASA Technical Reports Server (NTRS)

Pedro Medelius waited patiently in his lab at Kennedy Space Center. He had just received word that a colleague was bringing over a cable from a Space Shuttle solid rocket booster to test Medelius new invention. Medelius was calm until his colleague arrived, with about 30 other people. "Talk about testing under pressure," says Medelius. "There were people there from the Navy, the Air Force, and the Federal Aviation Administration." After the group s arrival, Medelius took a deep breath and connected his Standing Wave Reflectometer (SWR) to the cable. He wiggled the cable around, and the display showed a fault (a short or open circuit in wire) about an inch and a half inside the connector on the cable. His colleague questioned the results, because he had already checked that area on the cable. Medelius used the SWR to check again but got the same result. "That is when we took the cable apart and looked inside," Medelius says. "Lo and behold, that was exactly where the fault was." The impetus for Medelius new wire inspection technology came about in 1999 when one of the space shuttles lost power due to a fault somewhere in its more than 200 miles of electrical wiring. "The backup circuit was activated and prevented a major dysfunction, but nevertheless, there was a problem with the wiring," Medelius describes. Even though technicians used a device called a multimeter to measure the electrical current to find which wire had a fault, it could not pinpoint exactly where on the wire the fault was located. For that, technicians had to visually inspect the wire. "Sometimes they would have to remove the whole wire assembly and visually inspect every single wire. It was a very tedious operation because the wires are behind cabinets. They go all over the place in the shuttle," says Medelius. "NASA needed an instrument capable of telling them exactly where the faults were occurring." To meet NASA s needs for a highly precise device to inspect electrical power bundles, wires, and connectors, Medelius devised the SWR. "It came down to what was affected when a wire is short circuited or opened," he says. "We worked out a few equations based on physical principles." The SWR proved very sensitive, and the technology was patented.

2013-01-01

422

Copper Wire Bonding Concerns and Best Practices  

NASA Astrophysics Data System (ADS)

Copper wire bonding of microelectronic parts has developed as a means to cut the costs of using the more mature technology of gold wire bonding. However, with this new technology, changes in the bonding processes as well as bonding metallurgy can affect product reliability. This paper discusses the challenges associated with copper wire bonding and the solutions that the industry has been implementing. The paper also provides information to enable customers to conduct qualification and reliability tests on microelectronic packages to facilitate adoption in their target applications.

Chauhan, Preeti; Zhong, Z. W.; Pecht, Michael

2013-08-01

423

Plastic Deformation of 2D Crumpled Wires  

E-print Network

When a single long piece of elastic wire is injected trough channels into a confining two-dimensional cavity, a complex structure of hierarchical loops is formed. In the limit of maximum packing density, these structures are described by several scaling laws. In this paper it is investigated this packing process but using plastic wires which give origin to completely irreversible structures of different morphology. In particular, it is studied experimentally the plastic deformation from circular to oblate configurations of crumpled wires, obtained by the application of an axial strain. Among other things, it is shown that in spite of plasticity, irreversibility, and very large deformations, scaling is still observed.

M A F Gomes; V P Brito; A S O Coelho; C C Donato

2008-11-17

424

Telephone wire is backbone of security system  

SciTech Connect

Video provides a variety of low-cost, high-quality solutions in today`s security environment. Cost-conscious managers of power generation stations, casinos, prison facilities, military bases and office buildings are considering using regular telephone wire (unshielded twisted pair-UTP) within their existing systems as the backbone of a video to the PC, personal and video-conferencing and training are other areas where phone wire in a building can save money and provide an alternative to coax or fiber for video. More and more, businesses and government agencies are meeting their needs efficiently by using telephone wires for more than just telephones.

Brede, K.; Rackson, L.T.

1995-09-01

425

Breviz: Visualizing Spreadsheets using Dataflow Diagrams  

E-print Network

Spreadsheets are used extensively in industry, often for business critical purposes. In previous work we have analyzed the information needs of spreadsheet professionals and addressed their need for support with the transition of a spreadsheet to a colleague with the generation of data flow diagrams. In this paper we describe the application of these data flow diagrams for the purpose of understanding a spreadsheet with three example cases. We furthermore suggest an additional application of the data flow diagrams: the assessment of the quality of the spreadsheet's design.

Hermans, Felienne; van Deursen, Arie

2011-01-01

426

Ablation of wires in an inverse wire array z-pinch  

NASA Astrophysics Data System (ADS)

We describe experiments on the MAGPIE facility (1MA, 250ns) with inverse wire array z-pinches, in which the wires act as a return current cage placed around a central current conductor. In this configuration the plasma ablated from the wires is pushed by the JxB force in the radially outward direction and expands into the region free of the magnetic field. This allows quantitative characterisation of the plasma ablated from an individual wire using laser interferometry, X-ray radiography and XUV imaging. The inverse z-pinch configuration also allows to measure separately the contribution to the inductance coming from the ``private'' magnetic flux of the wires and thus to evaluate the size of the current-carrying region around the wire cores. Quantitative information obtained in these experiments will be compared with results of 3-D MHD computer simulations.

Lebedev, Sergey; Hall, G. N.; Bland, S. N.; Suzuki-Vidal, F. A.; Chittenden, J. P.; Jennings, C.; Harvey-Thompson, A.; Ning, Cheng; Palmer, J. B. A.

2007-11-01

427

Scattering by an Arbitrary Array of Parallel Wires  

Microsoft Academic Search

Equations are developed for the scattering pattern of an arbitrary array of parallel wires. The wires are assumed to be infinitely long, perfectly conducting, and very small in diameter in comparison with the wavelength. The incident wave is assumed to be TM with respect to the wire axis, but it may have normal or oblique incidence on the wires. The

J. H. Richmond

1965-01-01

428

An efficient curved-wire integral equation solution technique  

Microsoft Academic Search

Computation of the currents on curved-wires by integral equation methods is often inefficient when the structure is tortuous but the length of wire is not large relative to the wavelength at the frequency of operation. The number of terms needed in an accurate piecewise straight model of a highly curved-wire can be large, yet, if the total length of wire

Shawn D. Rogers; Chalmers M. Butler

2001-01-01

429

Optimal Design of Shape Memory Alloy Wire Bundle Actuators  

Microsoft Academic Search

This research studied the optimal design of Shape Memory Alloy (SMA) muscle wire bundle actuators. Current literature describes the use of multiple muscle wires placed in parallel to increase the lifting capabilities of an SMA actuator, which however, is limited to wires of like -diameter. A constrained optimization problem was formulated, with constraints on the maximum number of wires, voltage

Kathryn J. De Laurentis; Avi Fisch; Jason Nikitczuk; Constantinos Mavroidis

2002-01-01

430

Copper wire bonding challenges and solutions of small outline packages  

Microsoft Academic Search

Moving towards next level of major cost saving in small outline packages, conversion from gold wire to copper wire became necessary action. With normal production expectations of fast bonding and good quality performance on flimsy leadframe, copper wire challenges of small outline packages were incredible. Furthermore, situation became worse when new copper wire process was found requiring additional bonding time

Nicole Lin; C. E. Tan; Y. J. Pan

2010-01-01

431

A simplified post process for wire cut EDM  

Microsoft Academic Search

The paper deals with a technical realization to improve the Wire EDM accuracy while cutting at full speed on virtually any contour. The system which is readily available on commercial wire EDM machines is based on the on-line monitoring and control of the wire position by means of an optical sensor. The deviation of the wire position relative to the

Ivano Beltrami; Axel Bertholds; Dirk Dauw

1996-01-01

432

t matrix of metallic wire structures  

SciTech Connect

To study the electromagnetic resonance and scattering properties of complex structures of which metallic wire structures are constituents within multiple scattering theory, the t matrix of individual structures is needed. We have recently developed a rigorous and numerically efficient equivalent circuit theory in which retardation effects are taken into account for metallic wire structures. Here, we show how the t matrix can be calculated analytically within this theory. We illustrate our method with the example of split ring resonators. The density of states and cross sections for scattering and absorption are calculated, which are shown to be remarkably enhanced at resonant frequencies. The t matrix serves as the basic building block to evaluate the interaction of wire structures within the framework of multiple scattering theory. This will open the door to efficient design and optimization of assembly of wire structures.

Zhan, T. R., E-mail: phystrzhan@gmail.com; Chui, S. T., E-mail: chui@bartol.udel.edu [Bartol Research Institute, University of Delaware, Newark, Delaware 19716 (United States)

2014-04-14

433

Exploiting level sensitive latches in wire pipelining  

E-print Network

The present research presents procedures for exploitation of level sensitive latches in wire pipelining. The user gives a Steiner tree, having a signal source and set of destination or sinks, and the location in rectangular plane, capacitive load...

Seth, Vikram

2005-02-17

434

Wiring test program insulation material related properties  

NASA Technical Reports Server (NTRS)

This viewgraph presentation provides an overview of activities at DASA-RI concerning the testing of wires for manned spacecraft, including test facilities, arc-tracking tests, flammability tests, microgravity tests, and standardization, and outlines future activities.

Reher, Heinz-Josef

1995-01-01

435

Force-controlled lifting of molecular wires  

NASA Astrophysics Data System (ADS)

Lifting a single molecular wire off the surface with a combined frequency-modulated atomic force and tunneling microscope it is possible to monitor the evolution of both the wire configuration and the contacts simultaneously with the transport conductance experiment. In particular, critical points where individual bonds to the surface are broken and instabilities where the wire is prone to change its contact configuration can be identified in the force gradient and dissipation responses of the junction. This additional mechanical information can be used to unambiguously determine the conductance of a true molecular wire, that is, of a molecule that is contacted via a pointlike “crocodile clip” to each of the electrodes but is otherwise free.

Fournier, N.; Wagner, C.; Weiss, C.; Temirov, R.; Tautz, F. S.

2011-07-01

436

Evaluation of Wiring Constructions for Space Applications  

NASA Technical Reports Server (NTRS)

A NASA Office of Safety and Mission Assurance (OS&MA) program to develop lightweight, reliable, and safe wiring insulations for aerospace applications is being performed by the NASA Lewis Research Center (LeRC). As part of this effort, a new wiring construction utilizing high strength PTFE (poly tetrafluoroethylene) as the insulation has been tested and compared with the existing military standard polyimide-based MIL-W-81381 wire construction. Electrical properties which were investigated included ac corona inception and extinction voltages (sea level and 60,000 feet), time/current to smoke, and wire fusing time. The two constructions were also characterized in terms of their mechanical properties of flexural strength, abrasion resistance (23 C and 150 C), and dynamic cut-through (23 C and 200 C). The results obtained in this testing effort are presented and discussed in this paper.

Hammoud, Ahmad N.; Stavnes, Mark W.; Dickman, John E.; Burkhardt, Linda A.; Woodford, Lynn M.; Ide, James R.; Muegge, ED

1994-01-01

437

Superconducting wire for NMR-tomography  

SciTech Connect

The paper discusses the fabrication of Nb-Ti base superconducting wires having the superconductor packing factor of 15-20% and superconducting filaments 70-80 {mu}m dia. Three methods of precursor fabrication were tried. The NbTi-50 alloy base superconducting wire was fabricated to be used for the magnet system of a NMR-tomograph; the wire diameter is 0.85 mm; the packing factor is 16%; the maximum length of a single piece is 29 km{sub 2}. The critical current density is 6.1 {times} 10{sup 5} A/cm{sup 2} in the magnetic field of 1 T. The paper also presents the superconducting properties of similar wire on the NbTi-55 alloy base.

Filkin, V.Y.; Plashkin, E.I.; Salunin, N.I.; Morozova, T.A.; Zelenskiy, G.K.; Vlasova, L.V.; Drobyshev, V.A.; Zinovev, V.G.; Yakovlev, B.V. (All-Union Scientific and Research Inst. of Inorganic Materials, 123060 Moscow (SU))

1992-01-01

438

Improvements to Existing Jefferson Lab Wire Scanners  

SciTech Connect

This poster will detail the augmentation of selected existing CEBAF wire scanners with commercially available hardware, PMTs, and self created software in order to improve the scanners both in function and utility.

McCaughan, Michael D. [JLAB; Tiefenback, Michael G. [JLAB; Turner, Dennis L. [JLAB

2013-06-01

439

Printed wiring board system programmer's manual  

NASA Technical Reports Server (NTRS)

The printed wiring board system provides automated techniques for the design of printed circuit boards and hybrid circuit boards. The system consists of four programs: (1) the preprocessor program combines user supplied data and pre-defined library data to produce the detailed circuit description data; (2) the placement program assigns circuit components to specific areas of the board in a manner that optimizes the total interconnection length of the circuit; (3) the organizer program assigns pin interconnections to specific board levels and determines the optimal order in which the router program should attempt to layout the paths connecting the pins; and (4) the router program determines the wire paths which are to be used to connect each input pin pair on the circuit board. This document is intended to serve as a programmer's reference manual for the printed wiring board system. A detailed description of the internal logic and flow of the printed wiring board programs is included.

Brinkerhoff, C. D.

1973-01-01

440

Development of tunable terahertz wire lasers  

E-print Network

We report a novel tuning mechanism based on a “wire-laser” with subwavelength transverse dimensions(w??). By manipulating the waveguided mode propagating outside the cavity, frequency tuning of ?137GHz (3.6%) is demonstrated ...

Hu, Qing

441

An advanced arc track resistant airframe wire  

NASA Technical Reports Server (NTRS)

Tensolite, a custom cable manufacturer specializing in high temperature materials as the dielectric medium, develops an advance arc track resistant airframe wire called Tufflite 2000. Tufflite 2000 has the following advantages over the other traditional wires: lighter weight and smaller in diameter; excellent wet and dry arc track resistance; superior dynamic cut-through performance even at elevated temperatures; flight proven performance on Boeing 737 and 757 airplanes; and true 260 C performance by utilizing Nickel plated copper conductors. This paper reports the different tests performed on Tufflite 2000: accelerated aging, arc resistance (wet and dry), dynamic cut through, humidity resistance, wire-to-wire abrasion, flammability, smoke, weight, notch sensitivity, flexibility, and markability. It particularly focuses on the BSI (British Standards Institute) dry arc resistance test and BSI wet arc tracking.

Beatty, J.

1995-01-01

442

ConcepTest: Relative Time Diagram #3  

NSDL National Science Digital Library

Match the features in the relative time diagram below with the events described in the short sentence. Assume all rocks are sedimentary unless otherwise indicated. Which unit is composed of granite and older than ...

443

A Phase Diagram for Solar Flares  

NASA Astrophysics Data System (ADS)

Using the data from the NOAA/GOES X-ray observations of ~50,000 flares, we develop a Phase Diagram for solar flares. Such a Solar Flare Phase Diagram helps to trace the underlying energy structure of solar flares, and provides a prediction framework. The temperature (maximum ratio of short (0.5 – 4 A) to long band (1-8 A) band) and background solar x-ray radiation (at 1-8 A band) forms the basis of the phase diagram. Using the phase diagram and relevant statistical analysis, we derive insights into the eruptive nature of flares during the solar-cycle ramp (ramp up to and ramp down from solar maximum) phases and peak phase of the solar cycle.

Balasubramaniam, K. S.; Winter, Lisa; Pernak, Rick

2015-04-01

444

Architecture flow diagrams under teamwork reg sign  

SciTech Connect

The Teamwork CASE tool allows Data Flow Diagrams (DFDs) to be maintained for structured analysis. Fermilab has extended teamwork under UNIX{trademark} to permit Hatley and Pirbhai Architecture Flow Diagrams (AFDs) to be associated with DFDs and subsequently maintained. This extension, called TWKAFD, allows a user to open an AFD, graphically edit it, and replace it into a TWKAFD maintained library. Other aspects of Hatley and Pirbhai's methodology are supported. This paper presents a quick tutorial on Architecture Diagrams. It then describes the user's view of TWKAFD, the experience incorporating it into teamwork, and the successes with using the Architecture Diagram methodology along with the shortcomings of using the teamwork/TWKAFD tool. 8 refs.

Nicinski, T.

1992-02-01

445

Sequential Influence Diagrams: A Unified Asymmetry Framework  

E-print Network

We describe a new graphical language for specifying asymmetric decision problems. The language is based on a filtered merge of several existing languages including sequential valuation networks, asymmetric influence diagrams, ...

Jensen, Finn V.; Nielsen, Thomas D.; Shenoy, Prakash P.

2004-10-01

446

An Improved Mnemonic Diagram for Thermodynamic Relationships.  

ERIC Educational Resources Information Center

Considers pressure, volume, entropy, temperature, Helmholtz free energy, Gibbs free energy, enthalpy, and internal energy. Suggests the mnemonic diagram is for use with simple systems that are defined as macroscopically homogeneous, isotropic, uncharged, and chemically inert. (MVL)

Rodriguez, Joaquin; Brainard, Alan J.

1989-01-01

447

Voronoi diagram generation on the ellipsoidal earth  

NASA Astrophysics Data System (ADS)

Voronoi diagram on the earth surface is a powerful tool to study spatial proximity at continental or global scale. However, its computation remains challenging because geospatial features have complex shapes. This paper presents a raster-based algorithm to generate Voronoi diagrams on earth's surface. The algorithm approximates the exact point-to-point geographical distances using the cell-to-cell geographical distances calculated by a geographical distance transform. The result is a distance image on which Voronoi diagram is delineated. Compared to existing methods, the proposed algorithm calculates geographical distances based on an earth ellipsoid and allows Voronoi generators to take complex shapes. Most importantly, its approximation error is bounded thus enabling users to control the accuracy of the Voronoi diagram through grid resolution.

Hu, Hai; Liu, XiaoHang; Hu, Peng

2014-12-01

448

Sloan Digital Sky Survey - Hubble Diagram  

NSDL National Science Digital Library

This website, containing information from the Sloan Digital Sky Survey, provides projects and activities for advanced astronomy students. In this particular one, the user retraces Edwin Hubble's steps to discover that the Universe is expanding, by making a Hubble Diagram.

449

Minimum Energy Diagrams for Multieffect Distillation Arrangements  

E-print Network

Minimum Energy Diagrams for Multieffect Distillation Arrangements Hilde K. Engelien and Sigurd distillation arrangements for separating a ternary mixture have been considered. The focus is on a heat-integrated complex distillation configuration, called a multieffect prefractionator arrangement. The comparison

Skogestad, Sigurd

450

Attribute Reduction Based on Property Pictorial Diagram  

PubMed Central

This paper mainly studies attribute reduction which keeps the lattice structure in formal contexts based on the property pictorial diagram. Firstly, the property pictorial diagram of a formal context is defined. Based on such diagram, an attribute reduction approach of concept lattice is achieved. Then, through the relation between an original formal context and its complementary context, an attribute reduct of complementary context concept lattice is obtained, which is also based on the property pictorial diagram of the original formal context. Finally, attribute reducts in property oriented concept lattice and object oriented concept lattice can be acquired by the relations of attribute reduction between these two lattices and concept lattice of complementary context. In addition, a detailed illustrative example is presented. PMID:25247200

Wan, Qing; Wei, Ling

2014-01-01

451

Interfaces for creating quantitative conceptual diagrams  

E-print Network

Modern chart-making, illustration, and mathematical tools poorly support the use of conceptual components in quantitative graphs such as Economics diagrams. The substantial time those tools require to achieve the desired ...

Stewart, Robin S. (Robin Scott)

2008-01-01

452

Fabrication of terahertz wire-grid polarizers.  

PubMed

Wire-grid polarizers for terahertz region were fabricated by manufacturing triangular grating using a ruling-based, ultraprecision diamond machining process and replicating the pattern into polymethylpentene (TPX) and cyklo-olefin copolymer (COC) sheets using hot embossing. On top of the imprinted structures, aluminum was evaporated in an oblique angle, forming an aluminum wire grid. The achieved extinction rate was over 150 for TPX polarizers and near 1000 for COC polarizers. PMID:23262530

Partanen, Anni; Väyrynen, Juha; Hassinen, Sami; Tuovinen, Hemmo; Mutanen, Jarkko; Itkonen, Tommi; Silfsten, Pertti; Pääkkönen, Pertti; Kuittinen, Markku; Mönkkönen, Kari; Venäläinen, Tapani

2012-12-10

453

Note: Improved wire-wound heater  

NASA Astrophysics Data System (ADS)

The authors have measured, at cryogenic temperature, the upper limit of the heat transfer in different configurations of a wire-wound heater. We found that the heat transferred has an upper limit of about 15 W/cm2 and is dependent on the diameter of the wire. In this paper, we present three ways of increasing the heat transferred by this type of heater and its application in different continuous flow cryostats.

Steinmann, Ricardo G.; Vitoux, Hugo

2015-01-01

454

Energetic additive manufacturing process with feed wire  

DOEpatents

A process for additive manufacture by energetic wire deposition is described. A source wire is fed into a energy beam generated melt-pool on a growth surface as the melt-pool moves over the growth surface. This process enables the rapid prototyping and manufacture of fully dense, near-net shape components, as well as cladding and welding processes. Alloys, graded materials, and other inhomogeneous materials can be grown using this process.

Harwell, Lane D. (Albuquerque, NM); Griffith, Michelle L. (Albuquerque, NM); Greene, Donald L. (Corrales, NM); Pressly, Gary A. (Sandia Park, NM)

2000-11-07

455

‘Chrysanthemum petal’ arrangements of silver nano wires  

NASA Astrophysics Data System (ADS)

Highly ordered ‘Chrysanthemum petal’ arrangements of silver nano wires were fabricated in a biodegradable polymer of polyvinyl alcohol using a simple one-step blending method without any template. The degree of the arrangement increased with the decreasing content of polyvinyl alcohol. The mechanism for the formation of these ‘Chrysanthemum petal’ arrangements was discussed specifically. These ‘Chrysanthemum petal’ arrangements will be helpful to increase the electrical conductivity of silver nano wires films.

Cui, Hui-Wang; Jiu, Jin-Ting; Sugahara, Tohru; Nagao, Shijo; Suganuma, Katsuaki; Uchida, Hiroshi

2014-12-01

456

TOWARDS DRIVE-BY-WIRE AUTOMOBILES  

Microsoft Academic Search

The development of automotive systems shows an increasing integration of electronic sen- sors, microcomputers and actuators for single components, engine, drive-chain, suspensions and brakes. After considering electronic driver assisting systems such as ABS, TCS, ASR, ESP, BA the developments towards drive-by-wire systems with and without mechanical or hydraulic backup are considered. Drive-by-wire systems consist of an operating unit (steering wheel,

Rolf Isermann

2000-01-01

457

A Magnetic Sensor with Amorphous Wire  

PubMed Central

Using a FeCoSiB amorphous wire and a coil wrapped around it, we have developed a sensitive magnetic sensor. When a 5 mm long amorphous wire with the diameter of 0.1 mm was used, the magnetic field noise spectrum of the sensor was about 30 pT/?Hz above 30 Hz. To show the sensitivity and the spatial resolution, the magnetic field of a thousand Japanese yen was scanned with the magnetic sensor. PMID:24940865

He, Dongfeng; Shiwa, Mitsuharu

2014-01-01

458

Fluctuations and the QCD phase diagram  

SciTech Connect

In this contribution the role of quantum fluctuations for the QCD phase diagram is discussed. This concerns in particular the importance of the matter back-reaction to the gluonic sector. The impact of these fluctuations on the location of the confinement/deconfinement and the chiral transition lines as well as their interrelation are investigated. Consequences of our findings for the size of a possible quarkyonic phase and location of a critical endpoint in the phase diagram are drawn.

Schaefer, B.-J., E-mail: bernd-jochen.schaefer@uni-graz.at [Karl-Franzens-Universitaet, Institut fuer Physik (Austria)

2012-06-15

459

Steps toward a radio HR diagram  

Microsoft Academic Search

We discuss the possibility of establishing a set of observational parameters for radio galaxies which could be used to study radio source evolution in the same way that the Hertzsprung-Russell diagram is used to understand stellar evolution. As a first step towards a radio H-R diagram, we show that the FRI\\/II break is a function of both radio and optical

Frazer Owen

460

Algebraic decision diagrams and their applications  

Microsoft Academic Search

In this paper we present theory and experiments on the AlgebraicDecision Diagrams (ADD's). These diagrams extend BDD'sby allowing values from an arbitrary finite domain to be associatedwith the terminal nodes. We present a treatment foundedin boolean algebras and discuss algorithms and results in applicationslike matrix multiplication and shortest path algorithms.Furthermore, we outline possible applications of ADD's to logicsynthesis, formal verification,

R. Iris Bahar; Erica A. Frohm; Charles M. Gaona; Gary D. Hachtel; Enrico Macii; Abelardo Pardo; Fabio Somenzi

1993-01-01

461

A universal structured-design diagramer  

NASA Technical Reports Server (NTRS)

Program (FLOWCHARTER) generates standardized flowcharts and concordances for development and debugging of programs in any language. User describes programming-language grammar, providing syntax rules in Backus-Naur form (BNF), list of semantic rules, and set of concordance rules. Once grammar is described, user supplies only source code of program to be diagrammed. FLOWCHARTER automatically produces flow diagram and concordance. Source code for program is written for PASCAL Release 2 compiler, as distributed by University of Minnesota.

1981-01-01

462

Implications of Cladistics: Understanding Branching Diagrams  

NSDL National Science Digital Library

This site explains how a cladogram is formed and its implications. The cladogram is compared to a family tree, however unlike family trees, ancestors in cladistics ideally give rise to only two descendent species. Also unlike family trees, new species form from splitting of old species. Three possible diagrams showing the relationship between humans, gorillas, baboons, and chimpanzees are demonstrated. The author explains why one diagram is favored and also explains the meaning of nodes and clades.

463

Reliability computation from reliability block diagrams  

NASA Technical Reports Server (NTRS)

A method and a computer program are presented to calculate probability of system success from an arbitrary reliability block diagram. The class of reliability block diagrams that can be handled include any active/standby combination of redundancy, and the computations include the effects of dormancy and switching in any standby redundancy. The mechanics of the program are based on an extension of the probability tree method of computing system probabilities.

Chelson, P. O.; Eckstein, R. E.

1971-01-01

464

Drawing conformal diagrams for a fractal landscape  

Microsoft Academic Search

Generic models of cosmological inflation and the recently proposed scenarios of a recycling universe and the string theory landscape predict spacetimes whose global geometry is a stochastic, self-similar fractal. To visualize the complicated causal structure of such a universe, one usually draws a conformal (Carter-Penrose) diagram. I develop a new method for drawing conformal diagrams, applicable to arbitrary 1+1-dimensional spacetimes.

Sergei Winitzki; Sergei

2005-01-01

465

Sets and The Venn Diagram (Beginner)  

NSDL National Science Digital Library

This lesson is designed to introduce students to sets, what it means to be part of a set, and how Venn diagrams relate to sets. This lesson provides links to discussions and activities related to sets and Venn diagrams as well as suggested ways to integrate them into the lesson. Finally, the lesson provides links to follow-up lessons designed for use in succession with the current one.

2011-05-23

466

Si Wire-Array Solar Cells  

NASA Astrophysics Data System (ADS)

Micron-scale Si wire arrays are three-dimensional photovoltaic absorbers that enable orthogonalization of light absorption and carrier collection and hence allow for the utilization of relatively impure Si in efficient solar cell designs. The wire arrays are grown by a vapor-liquid-solid-catalyzed process on a crystalline (111) Si wafer lithographically patterned with an array of metal catalyst particles. Following growth, such arrays can be embedded in polymethyldisiloxane (PDMS) and then peeled from the template growth substrate. The result is an unusual photovoltaic material: a flexible, bendable, wafer-thickness crystalline Si absorber. In this paper I will describe: 1. the growth of high-quality Si wires with controllable doping and the evaluation of their photovoltaic energy-conversion performance using a test electrolyte that forms a rectifying conformal semiconductor-liquid contact 2. the observation of enhanced absorption in wire arrays exceeding the conventional light trapping limits for planar Si cells of equivalent material thickness and 3. single-wire and large-area solid-state Si wire-array solar cell results obtained to date with directions for future cell designs based on optical and device physics. In collaboration with Michael Kelzenberg, Morgan Putnam, Joshua Spurgeon, Daniel Turner-Evans, Emily Warren, Nathan Lewis, and Harry Atwater, California Institute of Technology.

Boettcher, Shannon

2010-03-01

467

Needleless electrospinning with twisted wire spinneret  

NASA Astrophysics Data System (ADS)

A needleless electrospinning setup named ‘Needleless Twisted Wire Electrospinning’ was developed. The polymer solution is electrospun from the surface of a twisted wire set to a high voltage and collected on a cylindrical collector around the wire. Multiple Taylor cones are simultaneously self-formed on the downward flowing solution. The system is robust and simple with no moving parts aside from the syringe pump used to transport the solution to the top of the wire. The structure and process parameters of the setup and the results on the preparation of polyvinyl pyrrolidone (PVP), hydroxyapatite (HA) and bioglass fibers with the setup are presented. PVP fiber sheets with areas of 40 × 120 cm2 and masses up to 1.15 g were prepared. High production rates of 5.23 g h?1 and 1.40 g h?1 were achieved for PVP and HA respectively. The major limiting factor of the setup is drying of the polymer solution on the wire during the electrospinning process which will eventually force to interrupt the process for cleaning of the wire. Possible solutions to this problem and other ways to develop the setup are discussed. The presented system provides a simple way to increase the production rate and area of fiber sheet as compared with the conventional needle electrospinning.

Holopainen, Jani; Penttinen, Toni; Santala, Eero; Ritala, Mikko

2015-01-01

468

Chemistry of radiation damage to wire chambers  

SciTech Connect

Proportional counters are used to study aspects of radiation damage to wire chambers (wire aging). Principles of low-pressure, rf plasma chemistry are used to predict the plasma chemistry in electron avalanches (1 atm, dc). (1) Aging is studied in CF{sub 4}/iC{sub 4}H{sub 10} gas mixtures. Wire deposits are analyzed by Auger electron spectroscopy. An apparent cathode aging process resulting in loss of gain rather than in a self-sustained current is observed in CF{sub 4}-rich gases. A four-part model considering plasma polymerization of the hydrocarbon, etching of wire deposits by CF{sub 4}, acceleration of deposition processes in strongly etching environments, and reactivity of the wire surface is developed to understand anode wire aging in CF{sub 4}/iC{sub 4}H{sub 10} gases. Practical guidelines suggested by the model are discussed. (2) Data are presented to suggest that trace amounts of Freons do not affect aging rates in either dimethyl ether or Ar/C{sub 2}H{sub 6}. Apparent loss of gain is explained by attachment of primary electrons to a continuously increasing concentration of Freon 11 (CCl{sub 3}F) in the counter gas. An increase in the concentration of Freon 11 in dimethyl ether is caused by a distillation process in the gas supply bottle and is a natural consequence of the unequal volatilities of the two compounds.

Wise, J.

1992-08-01

469

Class diagram based evaluation of software performance  

NASA Astrophysics Data System (ADS)

The evaluation of software performance in the early stages of the software life cycle is important and it has been widely studied. In the software model specification, class diagram is the important object-oriented software specification model. The measures based on a class diagram have been widely studied to evaluate quality of software such as complexity, maintainability, reuse capability, etc. However the software performance evaluation based on Class model has not been widely studied, especially for object-oriented design of embedded software. Therefore, in this paper we propose a new approach to directly evaluate the software performance based on class diagrams. From a class diagram, we determine the parameters which are used to evaluate and build formula of the measures such as Size of Class Variables, Size of Class Methods, Size of Instance Variables, Size of Instance Methods, etc. Then, we do analysis of the dependence of performance on these measures and build the performance evaluation function from class diagram. Thereby we can choose the best class diagram based on this evaluation function.

Pham, Huong V.; Nguyen, Binh N.

2013-03-01

470

Human life support during interplanetary travel and domicile. VI - Generic modular flow schematic for hybrid physical/chemical-biological life support systems  

NASA Technical Reports Server (NTRS)

An extension is proposed for the NASA Space Exploration Initiative's Generic Modular Flow Schematics for physical/chemical life support systems which involves the addition of biological processes. The new system architecture includes plant, microbial, and animal habitat, as well as the human habitat subsystem. Major Feedstock Production and Food Preparation and Packaging components have also been incorporated. Inedible plant, aquaculture, microbial, and animal solids are processed for recycling.

Ganapathi, Gani B.; Seshan, P. K.; Ferrall, Joseph; Rohatgi, Naresh

1992-01-01

471

Influences of velocity gradient on hot-wire anemometry with an X-wire probe  

Microsoft Academic Search

The errors involved in the values obtained by an X-wire probe used for measuring a steady turbulent flow with velocity gradients are analyzed. Based on the analysis, a new measurement method is proposed which eliminates the errors caused by velocity gradients. In accordance with the method, two X-wire probes, one of which is a mirror image of the other, are

Masafumi Hirota; Hideomi Fujita; Hajime Yokosawa

1988-01-01

472

Studies of friction and wear characteristics of various wires for wire-brush skids  

NASA Technical Reports Server (NTRS)

The friction and wear characteristics of 22 types and sizes of wires for potential use in wire-brush skids were studied. These characteristics were determined by placing brushes made from candidate wires on a belt sander whose moving belt simulated landing roll-out distance. At the same time, the drag force and wear behavior were monitored. Data were obtained over distances up to 3048 m (10,000 ft) at preselected bearing pressures of 172 to 1034 kPa (25 to 150 psi). In general, the friction coefficient developed by the candidate wires was found to be independent of bearing pressure and ranged between 0.4 and 0.6 under the test conditions of this investigation. The friction coefficient was not degraded when the surface was wetted and appears to be independent of wire diameter except perhaps when wire size is relatively large compared with the surface asperities. Generally, the high friction demonstrated by the soft materials was accompanied by high wear rates; conversely, the hard materials provided greater wear resistance but offered lower friction. For all test wires, the wear was shown to increase with increasing bearing pressure, in general, for the same bearing pressure, wear increased with increasing wire diameter and decreased when the surface was wetted.

Dreher, R. C.

1977-01-01

473

Modelling and analysis of the wire-tool vibration in wire-cut EDM  

Microsoft Academic Search

Although wire-cut electrical discharge machining (WEDM) has revolutionised the present day metal cutting, die making and press tool manufacturing industries, further improvements are still required to meet the increasing demand of product precision and accuracy in those sectors of manufacturing. The machining performance in this regard is greatly influenced by the wire-tool vibration occurring during machining. This paper briefs an

A. B. Puri; B. Bhattacharyya

2003-01-01

474

STRS SpaceWire FPGA Module  

NASA Technical Reports Server (NTRS)

An FPGA module leverages the previous work from Goddard Space Flight Center (GSFC) relating to NASA s Space Telecommunications Radio System (STRS) project. The STRS SpaceWire FPGA Module is written in the Verilog Register Transfer Level (RTL) language, and it encapsulates an unmodified GSFC core (which is written in VHDL). The module has the necessary inputs/outputs (I/Os) and parameters to integrate seamlessly with the SPARC I/O FPGA Interface module (also developed for the STRS operating environment, OE). Software running on the SPARC processor can access the configuration and status registers within the SpaceWire module. This allows software to control and monitor the SpaceWire functions, but it is also used to give software direct access to what is transmitted and received through the link. SpaceWire data characters can be sent/received through the software interface, as well as through the dedicated interface on the GSFC core. Similarly, SpaceWire time codes can be sent/received through the software interface or through a dedicated interface on the core. This innovation is designed for plug-and-play integration in the STRS OE. The SpaceWire module simplifies the interfaces to the GSFC core, and synchronizes all I/O to a single clock. An interrupt output (with optional masking) identifies time-sensitive events within the module. Test modes were added to allow internal loopback of the SpaceWire link and internal loopback of the client-side data interface.

Lux, James P.; Taylor, Gregory H.; Lang, Minh; Stern, Ryan A.

2011-01-01

475

Selected developments in laser wire stripping. [cutting insulation from aerospace-type wires and cables  

NASA Technical Reports Server (NTRS)

The operation of mechanical and thermal strippers and the early development of laser wire strippers are reviewed. NASA sponsored development of laser wire stripping for space shuttle includes bench-type strippers as well as an advanced portable hand-held stripper which incorporates a miniaturized carbon dioxide laser and a rotating optics unit with a gas-jet assist and debris exhaust. Drives and controls girdle the wire and slit the remaining slug without manual assistance. This unit can strip wire sizes 26 through 12 gage. A larger-capacity hand-held unit for wire sizes through 1/0 gage was built using a neodynium-doped yttrium aluminum garnet (Nd:YAG) laser. The hand-held units have a flexible umbilical cable to an accompanying cart that carries the power supply, gas supply, cooling unit, and the controls.

1977-01-01

476

Investigation of factors affecting the heater wire method of calibrating fine wire thermocouples  

NASA Technical Reports Server (NTRS)

An analytical investigation was made of a transient method of calibrating fine wire thermocouples. The system consisted of a 10 mil diameter standard thermocouple (Pt, Pt-13% Rh) and an 0.8 mil diameter chromel-alumel thermocouple attached to a 20 mil diameter electrically heated platinum wire. The calibration procedure consisted of electrically heating the wire to approximately 2500 F within about a seven-second period in an environment approximating atmospheric conditions at 120,000 feet. Rapid periodic readout of the standard and fine wire thermocouple signals permitted a comparison of the two temperature indications. An analysis was performed which indicated that the temperature distortion at the heater wire produced by the thermocouple junctions appears to be of negligible magnitude. Consequently, the calibration technique appears to be basically sound, although several practical changes which appear desirable are presented and discussed. Additional investigation is warranted to evaluate radiation effects and transient response characteristics.

Keshock, E. G.

1972-01-01

477

Coherently Explaining UML Statechart and Collaboration Diagrams by Graph Transformations  

E-print Network

use case, class, object, and sequence diagrams as well. The statechart and collaboration diagrams describe the operations of the underlying class diagram and include OCL expressions as guards and parts in [Kuske et al., 2002] for class, object and statechart diagrams. Since this approach does not cover

Gogolla, Martin - Fachbereich 3

478

Diagrams Based on Structural Object Perception Pourang Irani  

E-print Network

(506) 453-4566 cware@omg.unb.ca ABSTRACT Most diagrams, particularly those used in software engineering attention on a common class of diagrams technically called graphs in computer science, and also sometimes called a node-link diagram. This category of diagrams includes software structure charts [14], entity

New Hampshire, University of

479

Coverage Criteria for Testing of Object Interactions in Sequence Diagrams  

E-print Network

engineering, both for class diagrams and for sequence diagrams. In addition, several static analyses proposed of collaborating objects. The cri- teria are based on UML sequence diagrams that are reverse-engineered from the previous work that proposes such approaches. With the help of reverse-engineering tools, sequence diagrams

Rountev, Atanas "Nasko"

480

Coverage Criteria for Testing of Object Interactions in Sequence Diagrams  

E-print Network

of collaborating objects. The cri- teria are based on UML sequence diagrams that are reverse-engineered from work that proposes such approaches. With the help of reverse-engineering tools, sequence diagrams can, both for class diagrams and for sequence diagrams. In addition, several static analyses proposed

Sawin, Jason

481

Javelin Diagrams: A Graphical Tool for Probabilistic Sensitivity Analysis  

E-print Network

of a probabilistic sensitivity analysis. Here we introduce an analog of tornado diagrams for probabilistic sensitivity analysis, which we call javelin diagrams. Javelin diagrams are graphical augmentations of tornado). For instance, Clemen (1996, Ch.5) illustrates how tornado diagrams (e.g., Howard 1988) can be used to determine

Hazen, Gordon

482

Evolution of HR Diagrams So as a cluster ages, the  

E-print Network

Evolution of HR Diagrams So as a cluster ages, the main sequence `burns down' in order. lifetime Diagram to Determine the Age of a Star Cluster #12;Evolution of HR Diagrams So as a cluster ages, the main of plotting stars, we represent them with a line of constant age. Using the H-R Diagram to Determine the Age

Barnes, Joshua Edward

483

Science Visual Literacy: Learners' Perceptions and Knowledge of Diagrams  

ERIC Educational Resources Information Center

Constructing meaning from science texts relies not only on comprehending the words but also the diagrams and other graphics. The goal of this study was to explore elementary students' perceptions of science diagrams and their skills related to diagram interpretation. 30 students, ranging from second grade through middle school, completed a diagram

McTigue, Erin M.; Flowers, Amanda C.

2011-01-01

484

49 CFR 1152.10 - System diagram map.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 false System diagram map. 1152.10 Section 1152.10 Transportation...Diagram § 1152.10 System diagram map. (a) Each carrier shall prepare a diagram of its rail system on a map, designating all lines in its...

2010-10-01

485

Fishbone Diagrams: Organize Reading Content with a "Bare Bones" Strategy  

ERIC Educational Resources Information Center

Fishbone diagrams, also known as Ishikawa diagrams or cause-and-effect diagrams, are one of the many problem-solving tools created by Dr. Kaoru Ishikawa, a University of Tokyo professor. Part of the brilliance of Ishikawa's idea resides in the simplicity and practicality of the diagram's basic model--a fish's skeleton. This article describes how…

Clary, Renee; Wandersee, James

2010-01-01

486

49 CFR 1152.10 - System diagram map.  

Code of Federal Regulations, 2014 CFR

...2014-10-01 false System diagram map. 1152.10 Section 1152.10 Transportation...Diagram § 1152.10 System diagram map. (a) Each carrier shall prepare a diagram of its rail system on a map, designating all lines in its...

2014-10-01

487

49 CFR 1152.10 - System diagram map.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 false System diagram map. 1152.10 Section 1152.10 Transportation...Diagram § 1152.10 System diagram map. (a) Each carrier shall prepare a diagram of its rail system on a map, designating all lines in its...

2012-10-01

488

49 CFR 1152.10 - System diagram map.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 false System diagram map. 1152.10 Section 1152.10 Transportation...Diagram § 1152.10 System diagram map. (a) Each carrier shall prepare a diagram of its rail system on a map, designating all lines in its...

2011-10-01

489

49 CFR 1152.10 - System diagram map.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 false System diagram map. 1152.10 Section 1152.10 Transportation...Diagram § 1152.10 System diagram map. (a) Each carrier shall prepare a diagram of its rail system on a map, designating all lines in its...

2013-10-01

490

Timed Data Flow Diagrams Jurgen Symanzik and Albert L. Baker  

E-print Network

Timed Data Flow Diagrams J¨urgen Symanzik and Albert L. Baker TR #96--23 December 1996 Keywords, Formalized Data Flow Diagrams, Timed Petri Nets. c fl Copyright 1996 by J¨urgen Symanzik and Albert L. Baker, Iowa 50011--1040, USA #12; 1 1 TIMED DATA FLOW DIAGRAMS Abstract Data Flow Diagrams (DFD's) are widely

Symanzik, Jürgen

491

Timed Data Flow Diagrams Jurgen Symanzik and Albert L. Baker  

E-print Network

Timed Data Flow Diagrams Jurgen Symanzik and Albert L. Baker TR 96 23 December 1996 Keywords, Formalized Data Flow Diagrams, Timed Petri Nets. c Copyright 1996 by Jurgen Symanzik and Albert L. Baker. All 1040, USA #12;1 1 TIMED DATA FLOW DIAGRAMS Abstract Data Flow Diagrams DFD's are widely used

Symanzik, Jürgen

492

Abstracting Business Level UML Diagrams from Web Applications  

Microsoft Academic Search

In this paper, a reverse engineering approach for reconstructing UML diagrams at business level of the application domain of a Web application is presented. In particular, the approach allows the reconstruction of the UML class diagram providing an object-oriented conceptual model of the application domain, sequence diagrams modeling the interactions among the identified business objects and use case diagrams modeling

Giuseppe Antonio Di Lucca; Anna Rita Fasolino; Porfirio Tramontana; Ugo De Carlini

2003-01-01

493

[A study of mechanical properties of orthodontic wires in tension].  

PubMed

Orthodontic forces are applied to the teeth basically by means of different types of orthodontic wires. Knowledge of the mechanical properties of such wires are very helpful to the clinician in design and application of optimal force systems during orthodontic treatment. The basic mechanical properties were studied for 17 types of orthodontic wires (all rectangular and of the same size), in tension. Modulus of elasticity (E), yield strength (YS) and maximum elastic strain (Springback) (YS/E) were calculated for each type of wires. Stainless steel wires have demonstrated higher modulus of elasticity (and yield strength) in comparison with wires of nickel-titanium and beta titanium alloys. B-titanium wires showed higher modulus of elasticity than nickel-titanium ones. In addition stainless steel wires were found to have higher values for springback than cobalt-chromium ones and lower values (for the same variable) than nickel-titanium and B-titanium wires. PMID:2129597

Konstantellos, B; Lagoudakis, M; Toutountzakis, N

1990-12-01

494

On phase diagrams of magnetic reconnection  

SciTech Connect

Recently, “phase diagrams” of magnetic reconnection were developed to graphically organize the present knowledge of what type, or phase, of reconnection is dominant in systems with given characteristic plasma parameters. Here, a number of considerations that require caution in using the diagrams are pointed out. First, two known properties of reconnection are omitted from the diagrams: the history dependence of reconnection and the absence of reconnection for small Lundquist number. Second, the phase diagrams mask a number of features. For one, the predicted transition to Hall reconnection should be thought of as an upper bound on the Lundquist number, and it may happen for considerably smaller values. Second, reconnection is never “slow,” it is always “fast” in the sense that the normalized reconnection rate is always at least 0.01. This has important implications for reconnection onset models. Finally, the definition of the relevant Lundquist number is nuanced and may differ greatly from the value based on characteristic scales. These considerations are important for applications of the phase diagrams. This is demonstrated by example for solar flares, where it is argued that it is unlikely that collisional reconnection can occur in the corona.

Cassak, P. A. [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States)] [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States); Drake, J. F. [IREAP, University of Maryland, College Park, Maryland 20742-3511 (United States)] [IREAP, University of Maryland, College Park, Maryland 20742-3511 (United States)

2013-06-15

495

Measurement of Eye Diagrams and Constellation Diagrams of Optical Sources Using Linear Optics and Waveguide Technology  

Microsoft Academic Search

We demonstrate the characterization of optical sources with high sensitivity, high temporal resolution, and phase sensitivity using linear optical sampling. Eye diagrams and constellation diagrams are reconstructed using the interference of the source under test with a train of sampling pulses. This concept is implemented using a waveguide optical hybrid, which splits and recombines the sources and adjusts the phase

C. Dorrer; Christopher Richard Doerr; I. Kang; Roland Ryf; J. Leuthold; P. J. Winzer

2005-01-01

496

Evaluating data flow diagrams and class diagrams in usability laboratory experiments (CADPRO Pilot #2)  

Microsoft Academic Search

This paper reports on a second pilot experiment for the CADPRO project taking into account a number of the recommendations arising from the first pilot. Three subjects produced data flow diagrams and class diagrams in a usability laboratory setting. Characteristics of subjects' solutions are discussed and the usefulness of profiles of product delivery and constraint activations against time is determined.

SHINGO TAKADA; LOUISE SCOTT; ANDY BROOKS

497

Transformation from Data Flow Diagram to UML2.0 activity diagram  

Microsoft Academic Search

Model transformations are frequently applied in business process modeling to bridge between languages on a different level of abstraction and formality This paper proposes a model transformation from Data Flow Diagrams (DFD) which have been used widely in structure requirement analysis phase to UML Activity Diagrams (UML-AD) which have been used widely in various phases of Object Oriented Development Method.

Fanchao Meng; Dianhui Chu; Dechen Zhan

2010-01-01

498

Chinese NiTi wire--a new orthodontic alloy.  

PubMed

Chinese NiTi wire was studied by means of a bending test to determine wire stiffness, springback, and maximum bending moments. Chinese NiTi wire has an unusual deactivation curve (unlike steel and nitinol wires) in which relatively constant forces are produced over a long range of action. The characteristic flexural stiffness of NiTi wire is determined by the amount of activation. At large activations NiTi wires has a stiffness of only 7% that of a comparable stainless steel wire, and at small activations 28% of steel wire. For the same activation at large deflections, the forces produced are 36% that of a comparable nitinol wire. Chinese NiTi wire demonstrates phenomenal springback. It can be deflected 1.6 times as far as nitinol wire or 4.4 times as far as stainless steel wire without appreciable permanent deformation. NiTi wire is highly useful in clinical situations that require a low-stiffness wire with an extremely large springback. PMID:3890554

Burstone, C J; Qin, B; Morton, J Y

1985-06-01

499

Integrated Electrical Wire Insulation Repair System  

NASA Technical Reports Server (NTRS)

An integrated system tool will allow a technician to easily and quickly repair damaged high-performance electrical wire insulation in the field. Low-melt polyimides have been developed that can be processed into thin films that work well in the repair of damaged polyimide or fluoropolymer insulated electrical wiring. Such thin films can be used in wire insulation repairs by affixing a film of this low-melt polyimide to the damaged wire, and heating the film to effect melting, flow, and cure of the film. The resulting repair is robust, lightweight, and small in volume. The heating of this repair film is accomplished with the use of a common electrical soldering tool that has been modified with a special head or tip that can accommodate the size of wire being repaired. This repair method can furthermore be simplified for the repair technician by providing replaceable or disposable soldering tool heads that have repair film already "loaded" and ready for use. The soldering tool heating device can also be equipped with a battery power supply that will allow its use in areas where plug-in current is not available

Williams, Martha; Jolley, Scott; Gibson, Tracy; Parks, Steven

2013-01-01

500

Towards nonlinear photonic wires in lithium niobate  

NASA Astrophysics Data System (ADS)

The development of wafer-scale (3'' diameter) smart-cut lithium niobate (LN) single-crystal films of sub-micrometer thickness is reported. Z-cut LN wafers, implanted by high energy He-ions, are crystal-bonded to a SiO2 layer on another Z-cut LN handle sample. The bonded pair of samples splits along the He-implanted layer by appropriate annealing. As this fabrication method is similar to the process widely used for silicon-on-insulator (SOI) fabrication, the resulting material is called LNOI. Two different routes to develop periodically poled LNOI photonic wires are discussed. The first one starts with poling of planar LNOI samples; the photonic wires are fabricated afterwards by ICP-etching. The second one starts with the fabrication of LNOI photonic wires; they are "locally" poled afterwards. As both approaches were not yet successful, a PPLN-substrate was ion beam sliced to generate a planar periodically poled LNOI sample directly. Using planar LNOI samples as starting material, high-quality photonic wires have been developed. The smallest structure has a cross-section of ~ 1 x 0.7 ?m2 only. Its optical properties with mode distributions, waveguide propagation losses, and group index were investigated. Moreover, the first periodically poled LNOI photonic wires were successfully fabricated, but not yet investigated optically. They are of great potential for second order nonlinear integrated optics.

Hu, Hui; Gui, Li; Ricken, Raimund; Sohler, Wolfgang

2010-02-01