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1

PRESS SHOP. SEVEN BLISS PRESSES STAMP OUT A VARIETY OF ...  

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

PRESS SHOP. SEVEN BLISS PRESSES STAMP OUT A VARIETY OF CARTRIDGE AND SHELL CASINGS. THIS DEPARTMENT WAS TRANSFORMED FROM A MONEY-LOSING OPERATION TO A PROFIT CENTER UNDER THE FIRST WORKER-MANAGED QUALITY CIRCLE IN THE PLANT. - American Brass Foundry, 70 Sayre Street, Buffalo, Erie County, NY

2

Sheet metal stamping die design for warm forming  

Microsoft Academic Search

In metal stamping dies, by taking advantage of improved material flow by selectively warming the die, flat sections of the die can contribute to the flow of material throughout the workpiece. Local surface heating can be accomplished by placing a heating block in the die. Distribution of heating at the flat lower train central regions outside of the bend region

Amit K

2003-01-01

3

Evolutions of Advanced Stamping CAE — Technology Adventures and Business Impact on Automotive Dies and Stamping  

NASA Astrophysics Data System (ADS)

In the past decade, sheet metal forming and die development has been transformed to a science-based and technology-driven engineering and manufacturing enterprise from a tryout-based craft. Stamping CAE, especially the sheet metal forming simulation, as one of the core components in digital die making and digital stamping, has played a key role in this historical transition. The stamping simulation technology and its industrial applications have greatly impacted automotive sheet metal product design, die developments, die construction and tryout, and production stamping. The stamping CAE community has successfully resolved the traditional formability problems such as splits and wrinkles. The evolution of the stamping CAE technology and business demands opens even greater opportunities and challenges to stamping CAE community in the areas of (1) continuously improving simulation accuracy, drastically reducing simulation time-in-system, and improving operationalability (friendliness), (2) resolving those historically difficult-to-resolve problems such as dimensional quality problems (springback and twist) and surface quality problems (distortion and skid/impact lines), (3) resolving total manufacturability problems in line die operations including blanking, draw/redraw, trim/piercing, and flanging, and (4) overcoming new problems in forming new sheet materials with new forming techniques. In this article, the author first provides an overview of the stamping CAE technology adventures and achievements, and industrial applications in the past decade. Then the author presents a summary of increasing manufacturability needs from the formability to total quality and total manufacturability of sheet metal stampings. Finally, the paper outlines the new needs and trends for continuous improvements and innovations to meet increasing challenges in line die formability and quality requirements in automotive stamping.

Wang, Chuantao (C. T.)

2005-08-01

4

7. VIEW OF HYDRAULIC HAMMER STAMPING PRESS ON SIDE A ...  

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

7. VIEW OF HYDRAULIC HAMMER STAMPING PRESS ON SIDE A OF BUILDING 883. THIS TYPE OF PRESS WAS USED FOR BOTH STAINLESS STEEL AND FOR DEPLETED URANIUM. (7/2/86) - Rocky Flats Plant, Uranium Rolling & Forming Operations, Southeast section of plant, southeast quadrant of intersection of Central Avenue & Eighth Street, Golden, Jefferson County, CO

5

Impact of Simulation Technology on Die and Stamping Business  

NASA Astrophysics Data System (ADS)

Over the last ten years, we have seen an explosion in the use of simulation-based techniques to improve the engineering, construction, and operation of GM production tools. The impact has been as profound as the overall switch to CAD/CAM from the old manual design and construction methods. The changeover to N/C machining from duplicating milling machines brought advances in accuracy and speed to our construction activity. It also brought significant reductions in fitting sculptured surfaces. Changing over to CAD design brought similar advances in accuracy, and today's use of solid modeling has enhanced that accuracy gain while finally leading to the reduction in lead time and cost through the development of parametric techniques. Elimination of paper drawings for die design, along with the process of blueprinting and distribution, provided the savings required to install high capacity computer servers, high-speed data transmission lines and integrated networks. These historic changes in the application of CAE technology in manufacturing engineering paved the way for the implementation of simulation to all aspects of our business. The benefits are being realized now, and the future holds even greater promise as the simulation techniques mature and expand. Every new line of dies is verified prior to casting for interference free operation. Sheet metal forming simulation validates the material flow, eliminating the high costs of physical experimentation dependent on trial and error methods of the past. Integrated forming simulation and die structural analysis and optimization has led to a reduction in die size and weight on the order of 30% or more. The latest techniques in factory simulation enable analysis of automated press lines, including all stamping operations with corresponding automation. This leads to manufacturing lines capable of running at higher levels of throughput, with actual results providing the capability of two or more additional strokes per minute. As we spread these simulation techniques to the balance of our business, from blank de-stacking to the racking of parts, we anticipate continued reduction in lead-time and engineering expense while improving quality and start-up execution. The author will provide an overview of technology and business evolution of the math-based process that brought an historical transition and revitalization to the die and stamping industry in the past decade. Finally, the author will give an outlook for future business needs and technology development directions.

Stevens, Mark W.

2005-08-01

6

Sheet metal stamping die design for warm forming  

DOEpatents

In metal stamping dies, by taking advantage of improved material flow by selectively warming the die, flat sections of the die can contribute to the flow of material throughout the workpiece. Local surface heating can be accomplished by placing a heating block in the die. Distribution of heating at the flat lower train central regions outside of the bend region allows a softer flow at a lower stress to enable material flow into the thinner, higher strain areas at the bend/s. The heating block is inserted into the die and is powered by a power supply.

Ghosh, Amit K. (Ann Arbor, MI)

2003-04-22

7

Investigation of Cooling Effect of Hot-stamping Dies by Numerical Simulation  

NASA Astrophysics Data System (ADS)

As the development of hot-stamping technology, the designing of hot-stamping dies has more and more request. The cooling effect of hot-stamping dies can affect the mechanical properties of hot-stamping parts and the production efficiency of hot-stamping process directly, so it is an important index to evaluate the performance of dies. The cooling effect of hot-stamping dies was simulated by CFX software, and the define method of contact thermo resistance was presented in the process of simulation. Besides, the effect of processing parameters, such as pressure-holding time and cooling water velocity, on the cooling effect of hot-stamping dies was investigated and verified by experiments. Comparisons show that numerical simulation results have a good agreement with experimental results, so the FE model is effective in simulation of hot-stamping process.

Lei, Chengxi; Cui, Junjia; Xing, Zhongwen; Fu, Hongya; Zhao, Hao

8

Ultraprecision fabrication of large stamping die of Wolter mirror for an x-ray telescope by ELID grinding  

NASA Astrophysics Data System (ADS)

This paper presents a ultra-precision manufacturing process of large stamping dies with confocal paraboloidal and hyperboloidal surfaces of Wolter mirror for an X-ray telescope. In order to improve the alignment of the two substrates and reduce the degeneration in imaging quality, two compound reflectors were formed from one thin substrate utilizing synthetic ELID grinding and arc-enveloped grinding method. Because the thin foil substrate was obtained by press forming, large stamping dies of foil substrate must be machined with high Fig. error and low roughness. In this ELID arc-enveloped grinding system, cast iron fiber bonded (CIFB) diamond wheels were 3-dimentional controlled to scan the workpiece and generate required surfaces. Through truing grinding wheel and ELID grinding for upper concave and lower convex stamping dies, attainable form accuracy, surface roughness were investigated.

Yin, Shaohui; Ohmori, Hitoshi; Uehara, Yoshihiro; Chen, Fengjun; Zhu, Yongjian; Wang, Yu

2009-05-01

9

A framework for development of an intelligent system for design and manufacturing of stamping dies  

NASA Astrophysics Data System (ADS)

An integration of computer aided design (CAD), computer aided process planning (CAPP) and computer aided manufacturing (CAM) is required for development of an intelligent system to design and manufacture stamping dies in sheet metal industries. In this paper, a framework for development of an intelligent system for design and manufacturing of stamping dies is proposed. In the proposed framework, the intelligent system is structured in form of various expert system modules for different activities of design and manufacturing of dies. All system modules are integrated with each other. The proposed system takes its input in form of a CAD file of sheet metal part, and then system modules automate all tasks related to design and manufacturing of stamping dies. Modules are coded using Visual Basic (VB) and developed on the platform of AutoCAD software.

Hussein, H. M. A.; Kumar, S.

2014-07-01

10

On the die face design for stamping an automotive engine hood  

NASA Astrophysics Data System (ADS)

The die face design for stamping an engine hood was examined in the present study using both the finite element analysis and the experimental approach. Since the engine hood is mainly manufactured in the drawing operation, the die addendum design is the key to the success of manufacturing a defect free product. In order to analyze the addendum design, the existing die addendum designs corresponding to those engine hoods were reviewed first and the design parameters were established. The preliminary study was then performed to determine favorable operation conditions including the suitable stamping die angle, blank-holder surface shape, and die open line. The optimum design for the die addendum face was then investigated with the use of finite element simulations. The effects of the design parameters constructed in the present study on the occurrence of the defects were examined and a systematic design guideline was proposed. In order to validate the proposed die design, the actual stamping tooling was manufactured according to the finite element analysis and the engine hoods were produced. The part shape, thickness distribution, and the stretch at the central region of the production part were compared with those obtained from the finite element simulations. The consistent agreement between the product parts and the simulation results confirms the validity of the design guide proposed in the present study for stamping an engine hood.

Chen, Ming-Zhi; Chen, Fuh-Kuo; Wang, Shi-Wei; Lin, Ching-I.

2010-06-01

11

Three-dimensional finite element mesh generation from measured data of a stamping die  

Microsoft Academic Search

An efficient approach was proposed to generate a three-dimensional (3D) finite element mesh system from the measured data of a stamping die, and a computer software was also developed based on the proposed approach in the present study. The concept of a checker with regular grids was used as a template to sort the tremendous number of measured data into

Cheng-En Tsai; Fuh-Kuo Chen

2003-01-01

12

Application of an integrated CAD\\/CAE\\/CAM system for stamping dies for automobiles  

Microsoft Academic Search

The globalization and competition in the automobile industry makes it necessary to reduce the time spent on product development.\\u000a Therefore, computer aided product development has become one of the most important techniques in the automobile industry.\\u000a According to the concurrent engineering concept, an integrated CAD\\/CAE\\/CAM system for automobile stamping die development\\u000a is established. The system is based on 3D surface

Bor-Tsuen Lin; Chun-Chih Kuo

2008-01-01

13

A die pressing test for the estimation of agglomerate strength  

Microsoft Academic Search

A die pressing test was developed for quick and inexpensive estimation of the agglomerate strength of ceramic powders. The critical nominal pressure (p[sub c]) at which contact areas between agglomerates start to increase rapidly was found from the relationship between change in sample height and applied pressure in uniaxial single-ended die pressing. A quantitative microscopic method was used for measuring

Jin-Hua Song; Julian R. G. Evans

1994-01-01

14

Draw-in Map — A Road Map for Simulation-Guided Die Tryout and Stamping Process Control  

NASA Astrophysics Data System (ADS)

Sheet metal forming is a displacement or draw-in controlled manufacturing process in which a flat blank is drawn into die cavity to form an automotive body panel. Draw-in amount is the single most important stamping manufacturing index that controls all forming characteristics (strains, stresses, thinning, etc.), stamping failures (splits, wrinkles, surface distortion, etc.) and line die operations and automations. Draw-in Map is engineered for math-based die developments via advanced stamping simulation technology. Then the Draw-in Map is provided to die makers in plants as a road map for math-guided die tryout in which the die tryout workers follow the engineered tryout conditions and matches the engineered draw-in amount so that the tryout time and cost are greatly reduced, and quality is ensured. The Map can also be used as a math-based trouble-shooting tool to identify the causes of formability problems in stamping production. The engineered Draw-in Map has been applied to all draw die tryout for all GM vehicle programs since 1998. A minimum 50% reduction in both lead-time and cost and significant improvement in panel quality in tryout have been reported. This paper presents the concept and process to apply the engineered Draw-in Map in die tryout.

Wang, Chuantao (C. T.); Zhang, Jimmy J.; Goan, Norman

2005-08-01

15

Manufacture of die casting dies by hot isostatic pressing. CRADA final report  

SciTech Connect

The reason for this Cooperative Research and Development Agreement (CRADA) between the Oak Ridge National Laboratory (ORNL) and Doehler-Jarvis was to investigate the manufacture die-casting dies with internal water-cooling lines by hot-isostatic pressing (HIPing) of H13 tool steel powder. The use of HIPing will allow the near-net-shape manufacture of dies and the strategic placement of water-cooling lines during manufacture. The production of near-net-shape dies by HIPing involves the generation of HIPing diagrams, the design of the can that can be used for HIPing a die with complex details, strategic placement of water-cooling lines in the die, computer modeling to predict movement of the water lines during HIPing, and the development of strategies for placing water lines in the appropriate locations. The results presented include a literature review, particle analysis and characterization of H13 tool steel powder, and modeling of the HIPing process.

Viswanathan, S.; Ren, W.; Luk, K. [Oak Ridge National Lab., TN (United States); Brucher, H.G. [Doehler-Jarvis, Toledo, OH (United States)

1998-09-01

16

Experimental and Numerical Studies on the Formability of Materials in Hot Stamping and Cold Die Quenching Processes  

NASA Astrophysics Data System (ADS)

Formability of steel and aluminium alloys in hot stamping and cold die quenching processes is studied in this research. Viscoplastic-damage constitutive equations are developed and determined from experimental data for the prediction of viscoplastic flow and ductility of the materials. The determined unified constitutive equations are then implemented into the commercial Finite Element code Abaqus/Explicit via a user defined subroutine, VUMAT. An FE process simulation model and numerical procedures are established for the modeling of hot stamping processes for a spherical part with a central hole. Different failure modes (failure takes place either near the central hole or in the mid span of the part) are obtained. To validate the simulation results, a test programme is developed, a test die set has been designed and manufactured, and tests have been carried out for the materials with different forming rates. It has been found that very close agreements between experimental and numerical process simulation results are obtained for the ranges of temperatures and forming rates carried out.

Li, N.; Mohamed, M. S.; Cai, J.; Lin, J.; Balint, D.; Dean, T. A.

2011-05-01

17

Heated Dies for Forging and Friction Studies on a Modified Hydraulic Forge Press.  

National Technical Information Service (NTIS)

A heated die assembly, designed to bolt onto a hydraulic forge press, is described. Novel features of the design include (a) split heater blocks, which contain semi-cylindrical grooves and which bolt in pairs around cartridge heaters, thereby facilitating...

D. J. Abson, F. J. Gurney, T. M. Brown

1972-01-01

18

Solid Explosive Plane-Wave Lenses Pressed-to-Shape with Dies.  

National Technical Information Service (NTIS)

Solid-explosive plane-wave lenses 1 inch, 2 inch and 4 14 inch in diameter have been mass-produced from components pressed-to-shape with aluminum dies. The method used to calculate the contour between the solid plane-wave lens components pressed-to-shape ...

B. Olinger

2007-01-01

19

Basic Stamp  

NSDL National Science Digital Library

This site from Parallax, Inc. gives some information about basic stamp microcontrollers. A Basic-Stamp microcontroller is a single-board computer. Parallax makes a variety of controllers; the BASIC Stamp II uses a PIC16C57microchip.

2012-10-12

20

Design of a work-piece of 385 diesel engine punching dies based on CAE  

Microsoft Academic Search

Based on the idea of mechanical optimization design, dies meeting the requirements were built by the analysis on the stamping part front-covering-shell. The DYNAFORM software is used for CAE analysis. Because CAE is introduced, stamping is developed from the original analysis on strain and stress to simulation and analysis of process by finite element method and so on. Finally, press

Zhou Jian; Li Li-jun; Li Xing-hua; Gao Zi-cheng; Cheng Ke

2010-01-01

21

Experimental investigation on the performance of an improved equal channel angular pressing die  

NASA Astrophysics Data System (ADS)

A major problem in Equal Channel Angular Pressing is die design. Friction plays an important role in the extrusion process. In the present work, Aluminium 6082 alloy was processed through a modified ECAP die originally proposed by Mathieu et al. in 2004 [1] and the performance of the die was analyzed. The channel angle was phi=90° and corner angle ?=20°. Mechanical properties, micro hardness measurement and crystalline size (D) were measured from the extruded specimen for both the conventional and new die designs. It has been found that the new die samples displayed better results than the conventional ones. The newly designed die reduced the effect of friction on the work piece, it increased the tensile strength, the hardness of the material and achieved better grain refinement.

Surendarnath, S.; Sankaranarayanasamy, K.; Ravisankar, B.

2014-08-01

22

Evaluation of the Pressing Characteristics of Commercially Pure Titanium Using an Instrumented Double Acting Die  

SciTech Connect

With recent advances in synthesizing titanium powder by low-cost routes, there has been growing interest in identifying process/material conditions that overcome the powder compaction problems typically found with this reactive metal. The use of instrumented dies in studying the cold pressing process for commercial iron and steel powders has provided greater insight into the complex phenomena that occur and may be used to evaluate constitutive relations that describe the compaction process. Nevertheless, little work has been conducted on the special, more problematic case of reactive metal powders such as titanium. An instrumented die was developed that allows die wall friction to be characterized and the radial stress distribution along the die wall and throughout the compact to be monitored. As will be presented, this tool has been used to investigate titanium compaction and to draw comparisons with results obtained on a baseline commercial iron powder. Both sets of data were systematically collected using various powder/die lubrication combinations.

Hovanski, Yuri; Lavender, Curt A.; Weil, K. Scott

2008-06-19

23

46. DETAIL VIEW OF THE MORTAR BOXES, STAMP BATTERIES AND ...  

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

46. DETAIL VIEW OF THE MORTAR BOXES, STAMP BATTERIES AND AMALGAMATION TABLES. NOTE FULTON IRON WORKS, SAM FRANCISCO 1908 STAMPED INTO THE MORTAR BOX. ALSO NOTE THE DIES RESTING ON THE OUTSIDE OF THE MORTAR BOX BY THE SECOND STAMP BATTERY FROM THE CAMERA POSITION. - Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mono County, CA

24

Microstructure and properties of nano-TiN modified Ti(C,N)-based cermets fabricated by powder injection molding and die pressing  

NASA Astrophysics Data System (ADS)

Powder injection molding (PIM) and die pressing were employed to fabricate nano-TiN modified Ti(C,N)-based cermets. The shrinkage behavior, microstructure, porosity, and mechanical properties of the samples with and without nano-TiN addition fabricated by PIM and die pressing were analyzed. It is demonstrated that for either PIM or die pressing, the porosities are obviously reduced, the mechanical properties are significantly improved after adding nano-TiN, and the hard particles are refined; the rim phase thickness obviously becomes thinner, and the number of dimples in fracture also increases. Compared the samples fabricated by die pressing, it is difficult for PIM to obtain dense Ti(C,N)-based cermets. Due to the too much existence of pores and isolated carbon, the mechanical properties of the sintered samples by PIM are inferior to those of the sintered ones by die pressing.

Yi, Shan-jie; Yin, Hai-qing; Chen, Ke; Khan, Dil-Faraz; Zheng, Qing-jun; Qu, Xuan-hui

2013-11-01

25

Plate stamping of masterplates for the Tile-Cal hadronic calorimetric for ATLAS detector at CERN  

SciTech Connect

Various methods have been explored for the fabrication of the large trapezoidal plates used in the construction of the Tile-Cal hadronic calorimeter for ATLAS. The options include die stamping, laser cutting, waterjet cutting, plasma arc cutting, and a combination of machining and laser cutting. Very early in the program, the Argonne group began investigating the possibility of die stamping the master plates. At that time it was felt that two dies would be necessary to achieve the accuracy required. Quotations were received for dies for both the master and spacer plates. Concern was expressed by many members of the collaboration that due to the very precise tolerances required, die stamping, using standard dies, would not be adequate. Fine blanking techniques were felt to be adequate, but were cost prohibitive. Two methods were finally used for the initial cutting of prototype plates, laser cutting and die stamping. Only the die stamping, will be reviewed here.

Hill, N.F.; Petereit, E.; Wood, K.; Proudfoot, J.

1996-05-16

26

Stamping Out Misconceptions.  

ERIC Educational Resources Information Center

Describes the use of rubber hand-stamps to generate molecular pictures. These stamps (prepared with shapes of atoms and molecules at little cost by small, local print shops) can be used in creating pictures representing the microscopic state that can be linked to macroscopic descriptions for active conceptual exploration. (JN)

Bradley, J. D.; Brand, M.

1985-01-01

27

Optical force stamping lithography  

PubMed Central

Here we introduce a new paradigm of far-field optical lithography, optical force stamping lithography. The approach employs optical forces exerted by a spatially modulated light field on colloidal nanoparticles to rapidly stamp large arbitrary patterns comprised of single nanoparticles onto a substrate with a single-nanoparticle positioning accuracy well beyond the diffraction limit. Because the process is all-optical, the stamping pattern can be changed almost instantly and there is no constraint on the type of nanoparticle or substrates used. PMID:21992538

Nedev, Spas; Urban, Alexander S.; Lutich, Andrey A.; Feldmann, Jochen

2013-01-01

28

Stamps : how can you use old stamps?  

NSDL National Science Digital Library

This challenge asks students to determine possible ways for combining stamps costing 15 and 33 cents to total 1 dollar 77 cents. It notes that this type of problem is similar to a process used for creating security codes. This online student activity is part of the Figure This! collection of 80 mathematical challenges. Students are encouraged to make a chart as they explore possible number combinations. The answer page describes and illustrates four different approaches to finding the solution, including making a combination chart and investigating possible number endings for multiples of 15 and 33. The Try These questions extend the challenge to exploring other number combinations. Information about the history of stamps with links to postal web sites is included. Copyright 2005 Eisenhower National Clearinghouse

Engineering, National A.; National Council of Teachers of Mathematics (NCTM); Communications, Widmeyer

2002-01-01

29

Mechanical Behavior and Microstructural Development of 6063-T1 Aluminum Alloy Processed by Equal-Channel Angular Pressing (ECAP): Die Channel Angle Influence  

NASA Astrophysics Data System (ADS)

A commercial 6063-T1 aluminum alloy was investigated in this study. The specimens were processed for six, seven, and eight equal-channel angular pressing (ECAP) passes using three die channel angles: 90°, 100°, and 110°, respectively (maintaining approximately the same value for the accumulated equivalent strain in each case). After ECAP, samples were cut from each specimen and were prepared for metallographic analysis and mechanical testing. The microstructures of the ECAP treated and as-received material were investigated using both optical microscopy and scanning electron microscopy. It was found that the optimum ECAP die has a channel angle of 90°; the microstructure was more refined and homogeneous and second-phase particles were smaller as the die channel angle value decreased. All samples (ECAP processed and as-received) were also mechanically investigated in compression and microhardness tests. The maximum effect was observed when the 90° ECAP die was used, and significant total increases in ultimate compressive strength, yield strength, compression modulus, and microhardness were recorded compared to the as-received material. Also, it was shown that if the die channel angle value increases, then all the above mentioned mechanical properties decrease.

Serban, Nicolae; Ghiban, Nicolae; Cojocaru, Vasile-Danut

2013-11-01

30

Rapid thermal processing by stamping  

DOEpatents

A rapid thermal processing device and methods are provided for thermal processing of samples such as semiconductor wafers. The device has components including a stamp (35) having a stamping surface and a heater or cooler (40) to bring it to a selected processing temperature, a sample holder (20) for holding a sample (10) in position for intimate contact with the stamping surface; and positioning components (25) for moving the stamping surface and the stamp (35) in and away from intimate, substantially non-pressured contact. Methods for using and making such devices are also provided. These devices and methods allow inexpensive, efficient, easily controllable thermal processing.

Stradins, Pauls; Wang, Qi

2013-03-05

31

Pokemon Trading Card Sequences Mark Stamp Austin E Stamp  

E-print Network

Pok´emon Trading Card Sequences Mark Stamp Austin E Stamp March 25, 2003 Abstract In this note, Pok´emon a Pok´emon trading card game was introduced, which also became an enormous success. The game) has a set of Pok´emon cards that are used to battle an opposing trainer's cards. Booster packs

Stamp, Mark

32

39 CFR 551.2 - Semipostal stamps.  

Code of Federal Regulations, 2010 CFR

...recipient executive agencies, as defined under 5 U.S.C. 105. The office of Stamp Services determines the print quantities of semipostal stamps. The use of semipostal stamps shall be voluntary on the part of postal...

2010-07-01

33

Food Stamps Grow Urban Gardens  

Microsoft Academic Search

Plants and seeds can be purchased with SNAP (formerly Food Stamps, renamed Supplemental Nutrition Assistance Program, or SNAP in 2008,) but most current SNAP participants are unaware. Nearly four decades ago, in 1973, Alabama Senator James Allen championed an amendment to allow the purchase of food-producing plants and seeds with Food Stamps. The Senate passed the amendment after less than

Daniel Bowman Simon

2012-01-01

34

Hemp Stamps Bring Record Prices  

Microsoft Academic Search

The artifacts of hemp and marijuana's rich histories are some of the hottest articles on the secondary market today. Revenue stamps issued under the Marihuana Tax Act of 1937 were recently auctioned by the Smithsonian Institute to raise money for future acquisitions. The prices received shattered all preauction estimates. Other collectable stamps have been issued by various states of the

Don Wirtshafter; Michael Krawitz

2006-01-01

35

Applying STAMP in Accident Analysis  

NASA Technical Reports Server (NTRS)

Accident models play a critical role in accident investigation and analysis. Most traditional models are based on an underlying chain of events. These models, however, have serious limitations when used for complex, socio-technical systems. Previously, Leveson proposed a new accident model (STAMP) based on system theory. In STAMP, the basic concept is not an event but a constraint. This paper shows how STAMP can be applied to accident analysis using three different views or models of the accident process and proposes a notation for describing this process.

Leveson, Nancy; Daouk, Mirna; Dulac, Nicolas; Marais, Karen

2003-01-01

36

26 CFR 301.6806-1 - Posting occupational tax stamps.  

Code of Federal Regulations, 2010 CFR

... 2010-04-01 false Posting occupational tax stamps. 301.6806-1 Section...Stamps § 301.6806-1 Posting occupational tax stamps. For provisions...For penalties for failure to post occupational tax stamps, see section 7273....

2010-04-01

37

Massively Parallel Processing for Fast and Accurate Stamping Simulations  

NASA Astrophysics Data System (ADS)

The competitive automotive market drives automotive manufacturers to speed up the vehicle development cycles and reduce the lead-time. Fast tooling development is one of the key areas to support fast and short vehicle development programs (VDP). In the past ten years, the stamping simulation has become the most effective validation tool in predicting and resolving all potential formability and quality problems before the dies are physically made. The stamping simulation and formability analysis has become an critical business segment in GM math-based die engineering process. As the simulation becomes as one of the major production tools in engineering factory, the simulation speed and accuracy are the two of the most important measures for stamping simulation technology. The speed and time-in-system of forming analysis becomes an even more critical to support the fast VDP and tooling readiness. Since 1997, General Motors Die Center has been working jointly with our software vendor to develop and implement a parallel version of simulation software for mass production analysis applications. By 2001, this technology was matured in the form of distributed memory processing (DMP) of draw die simulations in a networked distributed memory computing environment. In 2004, this technology was refined to massively parallel processing (MPP) and extended to line die forming analysis (draw, trim, flange, and associated spring-back) running on a dedicated computing environment. The evolution of this technology and the insight gained through the implementation of DM0P/MPP technology as well as performance benchmarks are discussed in this publication.

Gress, Jeffrey J.; Xu, Siguang; Joshi, Ramesh; Wang, Chuan-tao; Paul, Sabu

2005-08-01

38

SCB - Stamped Circuit Board technology  

Microsoft Academic Search

Summary form only given. With its Stamped Circuit Board (SCB) technology Heraeus is able to offer a comprehensive concept for the realization of reliable and low cost solutions to thermal dissipation. Whilst requirements are ever increasing, electronic systems themselves continue to become smaller and more complex. Capacities are greater, and the respective power losses have to be dealt with in

M. Benedikt; T. Stenger; K. Andreas; F. Kru?ger

2010-01-01

39

Tissue Scaffold Engineering by Micro-Stamping Journal: 2013 MRS Fall Meeting  

E-print Network

of Authors: Schmitt, Eric; Tufts University, Mechanical Engineering White, Robert; Tufts University, Mechanical Engineering Sagar, Amrit; Tufts University, Mechanical Engineering James, Thomas; Tufts University Engineering, Tufts University, Medford, MA 02155, U.S.A. ABSTRACT A hand operated benchtop stamping press

White, Robert D.

40

Temperature Regime of Stamping Tools in Liquid Stamping.  

National Technical Information Service (NTIS)

An investigation was made of the effect of the principal technological parameters of the process (unit pressure, die-heating temperature prior to the filling of die with molten metal) and the weight of the blank itself on the temperature regime of the die...

N. T. Deordiev, A. F. Astashov, S. I. Tishaev, S. A. Ryaskov

1967-01-01

41

Die Mediatisierung der Kriegsgründe im Irak-Konflikt: Story Telling und evidenzbasierte Diskursfragmente im Widerstreit. Ein Vergleich der deutschen und US-amerikanischen, Qualitäts’-Presse  

Microsoft Academic Search

Die Gründe, mit denen die USA und Großbritannien ihren Einmarsch in den Irak zu legitimieren versuchten, gelten heute als\\u000a widerlegt (vgl. CEIP, 2004, 47 ff.; The Commission 2005; Select Committee 2006). Nachdem sich im Jahre 2004 herausgestellt hatte, dass der Irak—entgegen bisheriger Behauptungen—über gar keine unerlaubten\\u000a Massenvernichtungswaffen verfügte, informierten sowohl die New York Times (From the Editors 2004) als auch

Uno Dirks

42

Warm and Hot Stamping of Ultra High Tensile Strength Steel Sheets Using Resistance Heating  

Microsoft Academic Search

A warm and hot stamping process of ultra high tensile strength steel sheets using resistance heating was developed to improve springback and formability. In this process, the decrease in temperature of the sheet before the forming is prevented by directly heating the sheets set into the dies by means of the electrical resistance, the so-called Joule heat. Since the heating

K. Mori; S. Maki; Y. Tanaka

2005-01-01

43

Advancements in tailored hot stamping simulations: Cooling channel and distortion analyses  

NASA Astrophysics Data System (ADS)

Hot stamped components have been widely used in the automotive industry in the last decade where ultra high strength is required. These parts, however, may not provide sufficient toughness to absorb crash energy. Therefore, these components are "tailored" by controlling the microstructure at various locations. Simulation of tailored hot stamped components requires more detailed analysis of microstructural changes. Furthermore, since the part is not uniformly quenched, severe distortion can be observed. CPF, together with ESI have developed a number of techniques to predict the final properties of a tailored part. This paper discusses the recent improvements in modeling distortion and die design with cooling channels.

Billur, Eren; Wang, Chao; Bloor, Colin; Holecek, Martin; Porzner, Harald; Altan, Taylan

2013-12-01

44

We're 4 Stamp Designs.  

ERIC Educational Resources Information Center

Describes an activity in which students create four-part stamp designs using a particular theme, such as sports, that work as a balanced composition, individually and collectively. Addresses how the students created their stamp designs and discusses the students' responses to the project. (CMK)

Manion, Smedley C.

2000-01-01

45

Direct drive digital servo press with high parallel control  

NASA Astrophysics Data System (ADS)

Direct drive digital servo press has been developed as the university-industry joint research and development since 1998. On the basis of this result, 4-axes direct drive digital servo press has been developed and in the market on April of 2002. This servo press is composed of 1 slide supported by 4 ball screws and each axis has linearscale measuring the position of each axis with high accuracy less than ?m order level. Each axis is controlled independently by servo motor and feedback system. This system can keep high level parallelism and high accuracy even with high eccentric load. Furthermore the 'full stroke full power' is obtained by using ball screws. Using these features, new various types of press forming and stamping have been obtained by development and production. The new stamping and forming methods are introduced and 'manufacturing' need strategy of press forming with high added value and also the future direction of press forming are also introduced.

Murata, Chikara; Yabe, Jun; Endou, Junichi; Hasegawa, Kiyoshi

2013-12-01

46

Integrated software package STAMP for minor planets  

NASA Technical Reports Server (NTRS)

The integrated software package STAMP allowed for rapid and exact reproduction of the tables of the year-book 'Ephemerides of Minor Planets.' Additionally, STAMP solved the typical problems connected with the use of the year-book. STAMP is described. The year-book 'Ephemerides of Minor Planets' (EMP) is a publication used in many astronomical institutions around the world. It contains all the necessary information on the orbits of the numbered minor planets. Also, the astronomical coordinates are provided for each planet during its suitable observation period.

Kochetova, O. M.; Shor, Viktor A.

1992-01-01

47

Nanostructured Crosslinkable Micropatterns by Amphiphilic Dendrimer Stamping  

E-print Network

Nanostructured Crosslinkable Micropatterns by Amphiphilic Dendrimer Stamping Neeraj Kohli,1 Petar R Keywords: amphiphilic; crosslinking; dendrimers; microcontact printing; spin self-assembly Introduction, amphiphilic films with hydrophobic biological molecules can yield biomimetic interfaces able to reproduce

48

Supramolecular nano-stamping : analyzing market potential  

E-print Network

An analysis was carried out on the process of Supramolecular Nano-Stamping (SuNS) in order to determine whether or not the science involved has market potential in the DNA microarray industry. This industry is rapidly ...

DePalma, Christina Maria

2005-01-01

49

A case study of Vioxx using STAMP  

E-print Network

The goal of this thesis is to investigate and demonstrate the application of a systems approach to drug safety. The recall of the prescription drug Vioxx (Rofecoxib) was used as a test case to study whether STAMP (Systems ...

Couturier, Matthieu (Matthieu Jean)

2010-01-01

50

Design of a Workpiece of 390 Diesel Engine Punching Dies Based on CAE  

Microsoft Academic Search

Based on the idea of mechanical optimization design, a workpiece of 390 diesel engine punching dies meeting the requirements were built by the analysis on the stamping part behind-covering-shell. The DYNAFORM software is used for CAE analysis. Because CAE is introduced, stamping is developed from the original analysis on strain and stress to simulation and analysis of process by finite

Li Li-jun; Zhou Jian; Ming Shu-hui; Yang Dai-yu

2010-01-01

51

Pokemon Cards and the Shortest Common Superstring Mark Stamp Austin E Stamp  

E-print Network

Pok´emon Cards and the Shortest Common Superstring Mark Stamp Austin E Stamp June 12, 2003 Abstract Evidence is presented that certain sequences of Pok´emon cards are determined by selecting consecutive (SCS), i.e., the shortest string that contains each of the Pok´emon card sequences as a consecutive

Stamp, Mark

52

Improving Fairness and Accuracy in Food Stamp Fraud Investigations: Advocating Reform Under Food Stamp Regulations  

Microsoft Academic Search

Some state food stamp agencies are overly aggressive in pursuing charges that claimants have committed intentional program violations. Just as failure to pursue allegations of fraud can undermine the Food Stamp Program’s goals, so can intimidation of claimants. States should take care to follow appropriate procedures in their investigations, and Food and Nutrition Service regulations offer ample grounds to advocate

David A. Super

2005-01-01

53

Recent Innovations in Hyperworks® Stamping Simulation Technology  

NASA Astrophysics Data System (ADS)

HyperForm® and RADIOSS® which are components of the Altair® HyperWorks® software suite have been used for stamping simulation for the last fifteen years. Many features specialized for explicit stamping simulation to accurately capture the material behavior and contact phenomena have been developed over the years. Over the recent years several new innovative enhancements have been made to HyperForm and RADIOSS based on industry needs such as, analysis with fine mesh from the start of analysis for accurate spring back prediction without sacrifice of performance obtained with mesh adaptivity; high degree of scalability, reliability, quality and performance of the RADIOSS solver across multiple processors; modeling of thick sheet metal with solid elements; thermal forming for advanced high strength steels; tool stress analysis, and optimization of stamping processes and tool structures. This paper illustrates the benefits of the most recently implemented novel features in HyperForm and RADIOSS using real life examples.

Roy, Subir; Morancay, Lionel; Beauchesne, Erwan; Palaniswamy, Hariharasudhan

2011-08-01

54

Stamping of Thin-Walled Structural Components with Magnesium Alloy AZ31 Sheets  

SciTech Connect

In the present study, the stamping process for manufacturing cell phone cases with magnesium alloy AZ31 sheets was studied using both the experimental approach and the finite element analysis. In order to determine the proper forming temperature and set up a fracture criterion, tensile tests and forming limit tests were first conducted to obtain the mechanical behaviors of AZ31 sheets at various elevated temperatures. The mechanical properties of Z31 sheets obtained from the experiments were then adopted in the finite element analysis to investigate the effects of the process parameters on the formability of the stamping process of cell phone cases. The finite element simulation results revealed that both the fracture and wrinkle defects could not be eliminated at the same time by adjusting blank-holder force or blank size. A drawbead design was then performed using the finite element simulations to determine the size and the location of drawbead required to suppress the wrinkle defect. An optimum stamping process, including die geometry, forming temperature, and blank dimension, was then determined for manufacturing the cell phone cases. The finite element analysis was validated by the good agreement between the simulation results and the experimental data. It confirms that the cell phone cases can be produced with magnesium alloy AZ31 sheet by the stamping process at elevated temperatures.

Chen, F.-K.; Chang, C.-K. [Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan (China)

2005-08-05

55

Design of Channel Type Indirect Blank Holder for Prevention of Wrinkling and Fracture in Hot Stamping Process  

NASA Astrophysics Data System (ADS)

The hot stamping process has been used in the automotive industry to reduce the weight of the body-in-white and to increase passenger safety via improved crashworthiness. In this study, a new form die with a simple structure that can prevent defects such as wrinkle and fracture is proposed for the manufacture of hot stamped components. The wrinkling at the flange cannot be eliminated when using a conventional form die. It is known that the initiation of wrinkling is influenced by many factors such as the mechanical properties of the sheet material, geometry of the sheet and tool, and other process parameters, including the blank holding force (BHF) and the contact conditions. In this research, channel type indirect blank holder (CIBH) is introduced to replace general blank holder for manufacturing the hot stamped center pillar. First, we investigate the tension force acting on the blank according to the channel shapes. We determine the appropriate range by comparing the tension force with the upper and lower BHFs in a conventional stamping process. We then use FE-analysis to study the influence of the slope angle and corner radius of the channel on the formability. Finally, the center pillar is manufactured using the form die with the selected channel.

Choi, Hong-seok; Ha, Se-yoon; Cha, Seung-hoon; kang, Chung-gil; Kim, Byung-min

2011-08-01

56

43. DETAIL VIEW OF THE STAMP BATTERIES SHOWING THE SUPPORT ...  

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

43. DETAIL VIEW OF THE STAMP BATTERIES SHOWING THE SUPPORT STRUCTURE, CAMS, TAPPETS ON THE STAMP SHAFTS AND ONE OF THE TWO DRIVE WHEELS. - Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mono County, CA

57

Influence of Hot Press Forming Techniques on Properties of Vehicle High Strength Steels  

Microsoft Academic Search

Based on the combination of materials science and mechanical engineering, hot press forming process of the vehicle high strength steels was analyzed. The hot forming process included: heating alloys rapidly to austenite microstructures, stamping and cooling timely, maintaining pressure and quenching. The results showed that most of austenite microstructure was changed into uniform martensite by the hot press forming while

Ying CHANG; Zhao-huan MENG; Liang YING; Xiao-dong LI; Ning MA; Ping HU

2011-01-01

58

7 CFR 273.25 - Simplified Food Stamp Program.  

Code of Federal Regulations, 2010 CFR

...AGRICULTURE FOOD STAMP AND FOOD DISTRIBUTION PROGRAM CERTIFICATION...HOUSEHOLDS § 273.25 Simplified Food Stamp Program. (a) Definitions...section: (1) Simplified Food Stamp Program (SFSP) means...A of title IV of the Social Security Act (42 U.S.C. 601...

2010-01-01

59

Food Stamp Program Participation of Refugees and Immigrants  

Microsoft Academic Search

The Personal Responsibility and Work Opportunity Reconciliation Act (PRWORA) dramatically changed the availability of food stamps to immigrants, but not to refugees. However, refugee usage of food stamps in the post-reform era has declined more than usage of either other immigrants or native citizens. We investigate food stamp program participation of immigrants and refugees to ascertain if the resulting decline

Christopher R. Bollinger; Paul Hagstrom

2008-01-01

60

Drill Presses.  

ERIC Educational Resources Information Center

These instructional materials provide an orientation to the drill press for use at the postsecondary level. The first of seven sections lists seven types of drill presses. The second section identifies 14 drill press parts. The third section lists 21 rules for safe use of drilling machines. The fourth section identifies the six procedures for…

Engelbrecht, Nancy; And Others

61

Stamps Tell the Story of Nuclear Energy.  

ERIC Educational Resources Information Center

This document provides a summary history of the individual scientists principally responsible for the development of nuclear physics and a survey of modern utilization of atomic energy. Identified throughout the booklet are postage stamps illustrating each individual and topic discussed. (SL)

Angelo, Joseph A., Jr.

62

49 CFR 179.400-24 - Stamping.  

Code of Federal Regulations, 2010 CFR

...information plainly and permanently stamped into the metal near the center of the head of the outer jacket at the...specified markings may be incorporated on a data plate of corrosion-resistant metal, fillet welded in place on the head of the...

2010-10-01

63

49 CFR 179.400-24 - Stamping.  

Code of Federal Regulations, 2012 CFR

...information plainly and permanently stamped into the metal near the center of the head of the outer jacket at the...specified markings may be incorporated on a data plate of corrosion-resistant metal, fillet welded in place on the head of the...

2012-10-01

64

49 CFR 179.400-24 - Stamping.  

Code of Federal Regulations, 2013 CFR

...information plainly and permanently stamped into the metal near the center of the head of the outer jacket at the...specified markings may be incorporated on a data plate of corrosion-resistant metal, fillet welded in place on the head of the...

2013-10-01

65

49 CFR 179.400-24 - Stamping.  

Code of Federal Regulations, 2011 CFR

...information plainly and permanently stamped into the metal near the center of the head of the outer jacket at the...specified markings may be incorporated on a data plate of corrosion-resistant metal, fillet welded in place on the head of the...

2011-10-01

66

Teaching Hispanic Culture with Postage Stamps.  

ERIC Educational Resources Information Center

Methods for using postage stamps to their greatest potential in any level Spanish class are outlined, with illustrations and examples provided. Among the subjects that can be addressed through this medium are economics, politics, anthropology, archaeology, history, language and literature, geography, and music. (MSE)

Nuessel, Frank

1984-01-01

67

HSQ resist for replication stamp in polymers  

NASA Astrophysics Data System (ADS)

We investigated an affordable, accurate and large scale production method to fabricate sub-wavelength grating structures by replication in polycarbonate substrates by hot embossing. We used hydrogen silsesquioxane (HSQ) a high resolution, binary, inorganic, negative electron beam resist, on silicon substrate to make a stamp for replication. We fabricated the stamp on silicon by using HSQ-resist without any etching process with simple process steps. The process starts by depositing an HSQ-resist layer on a silicon substrate and by a measurement of the desired film thickness by adjusting the spinning speed and time. The resist material is then subjected to e-beam writing followed by a heat treatment to enhance the hardness and to reveal properties analogous to solid SiO2 as a hot embossing stamp material. A comparison study is made with and without the etching process with different etching rates. We demonstrate that an effective and inexpensive stamp for thermal nano-imprint lithography (NIL) for optical gratings is provided without an etching process, which gives a uniform imprinting density over the entire grating surface and high imprint fidelity. The reflectance spectra of replicated grating structures are also shown to be in agreement with theoretical calculations.

Saleem, M. R.; Stenberg, P. A.; Khan, M. B.; Khan, Z. M.; Honkanen, S.; Turunen, J.

2012-03-01

68

STAMP: Toward Reclaiming Email Address Privacy  

Microsoft Academic Search

level, our STAMP email protocol is comprised of three main components: solicitation, authentication, and revocation. Solicitation. A user wishing to receive email from a penpal, explicitly solicits the penpal by establishing a shared sec ret with him, referred to as a token. This token is used in a cryptographic protocol to allow a penpal's email to be authenticated as solicited

Kurt Ackermann; Camille Gaspard; Ramana Kompella; Cristina Nita-Rotaru

69

Pixel Palette: Put Your Stamp on It.  

ERIC Educational Resources Information Center

Describes a project used in a senior information design class where the students created their own self-portraits on rubber stamps through the use of Photoshop and QuarkXPress. Explains that the students learned about the difference between line art and continuous tone images as well as the effects of printing ink and papers. (CMK)

Osterer, Irv

1998-01-01

70

Smithsonian National Postal Museum Art of the Stamp  

NSDL National Science Digital Library

The Art of the Stamp online exhibit presented by the National Postal Museum is designed to complement the exhibit on display at the Museum itself in Washington, DC. The online exhibit begins with a brief description of how subjects and themes for postage are suggested, and then continues to discuss the timeline for developing a stamp, which often can take two years or longer. The main material on the site is divided into various categories, such as American History, Stamps with a Story, and Love. For each stamp, visitors can learn about the artist who created each design, along with information about the first day of issue. The Stamps with a Story section is rather engaging, containing stories about the creation of the Bugs Bunny stamp (visitors can take a look at some of the more irreverent designs considered) and of course the famous Elvis Presley stamp, which was first issued on January 8, 1993.

71

An Optimization Study of Hot Stamping Operation  

NASA Astrophysics Data System (ADS)

In the present study, 3-dimensional finite element analyses for hot-stamping processes of Audi B-pillar product are conducted using JSTAMP/NV and HEEDS. Special attention is paid to the optimization of simulation technology coupling with thermal-mechanical formulations. Numerical simulation based on FEM technology and optimization design using the hybrid adaptive SHERPA algorithm are applied to hot stamping operation to improve productivity. The robustness of the SHERPA algorithm is found through the results of the benchmark example. The SHERPA algorithm is shown to be far superior to the GA (Genetic Algorithm) in terms of efficiency, whose calculation time is about 7 times faster than that of the GA. The SHERPA algorithm could show high performance in a large scale problem having complicated design space and long calculation time.

Ghoo, Bonyoung; Umezu, Yasuyoshi; Watanabe, Yuko; Ma, Ninshu; Averill, Ron

2010-06-01

72

Reduced Oxygen Contributed To ?Great Dying?  

NSF Publications Database

... Press Release 05-058Reduced Oxygen Contributed To ?Great Dying? Oxygen deficiency could also ... atmospheric oxygen decreased in the late Permian period, hypoxia, or insufficient oxygen in bodily ...

73

Using STAMP to understand recent increases in malicious software activity  

E-print Network

My advisor, Professor Leveson has developed an accident modeling framework called STAMP (Systems Theoretic Accident Modeling and Processes.) Traditional accident models typically focus on component failure; in contrast, ...

Zipkin, David S

2005-01-01

74

Die Casting.  

National Technical Information Service (NTIS)

Contents: Recording technical information in pressure diecasting; Influence of copper addition on the dendritic structure of ILZRO-12; Graphite innoculated alloys for pressure die casting; Zinc--The versatile metal; Removal of scales from die cooling chan...

1978-01-01

75

Die Casting.  

National Technical Information Service (NTIS)

Contents: Mechanical properties of creep resistant zinc die casting alloys; Studies on a gravity die cast zinc base alloy; Parashot system for turbulence-free injection of metal; Zinc--the versatile metal; Prevention of metal dribble on hot chamber die ca...

1977-01-01

76

16. OBLIQUE DETAIL VIEW OF STAMP BATTERIES AND APRONS, LOOKING ...  

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

16. OBLIQUE DETAIL VIEW OF STAMP BATTERIES AND APRONS, LOOKING SOUTHWEST. EACH BATTERY CONTAINS FIVE STAMPS. TWO OF THE THREE BATTERIES ARE SIDE BY SIDE IN FOREGROUND, WHILE THE THIRD BATTERY IS SEPARATE (LOWER RIGHT). STAIRWAY UP IS AT LEFT SIDE. SEE CA-290-43 (CT) FOR IDENTICAL COLOR TRANSPARENCY. - Skidoo Mine, Park Route 38 (Skidoo Road), Death Valley Junction, Inyo County, CA

77

19. DETAIL OF STAMP BATTERY AUTOMATIC FEEDER, LOOKING EAST. THIS ...  

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

19. DETAIL OF STAMP BATTERY AUTOMATIC FEEDER, LOOKING EAST. THIS IS THE MIDDLE OF THREE FEEDERS, ONE FOR EACH STAMP BATTERY. THE CHUTE (UPPER RIGHT) INTRODUCED THE CRUSHED ORE FROM THE ORE BIN. FLOW WAS CONTROLLED BY A SLIDING DOOR ON THE UPPER LEVEL. - Skidoo Mine, Park Route 38 (Skidoo Road), Death Valley Junction, Inyo County, CA

78

A STAMP ANALYSIS OF THE LEX COMAIR 5191 ACCIDENT  

E-print Network

A STAMP ANALYSIS OF THE LEX COMAIR 5191 ACCIDENT Thesis submitted in partial fulfilment;A STAMP ANALYSIS OF THE LEX COMAIR 5191 ACCIDENT Paul S. Nelson 2 #12;Acknowledgements I want pressure" (Dekker, 2007, p. 131) A new, holistic systems perspective, accident model is used for analysis

Leveson, Nancy

79

Three-dimensional toolsforanalysis andconservation of ancient wooden stamps  

Microsoft Academic Search

This paper deals with the analysis and conservation of ancient wooden stamps from museum or library collections. The aim is to provide historians with tools that ease the process of handling and observation of very fragile and unique objects. By performing a three- dimensional imaging of stamps, data are processed in three different ways: (1) adaptive thresholding on the corresponding

R Seulin; F Nicolierb

2006-01-01

80

The Food Stamp Program: History, Nutrition Education, and Impact  

Microsoft Academic Search

The Food Stamp Program has grown from a modest effort to distribute excess farm commodities during the Great Depression to the nation’s largest food assistance and nutrition program, serving almost 27 million persons in fiscal year 2006, at a cost of more than $30 billion to federal taxpayers. In 1990 Congress authorized cost sharing for food stamp nutrition education. Since

Patti S. Landers

2007-01-01

81

The Stamp Act in Georgia, 1765-1766.  

ERIC Educational Resources Information Center

Effects of the Stamp Act in the Colony of Georgia in 1765 are explored. The pamphlet is one in a series of materials about the American Revolution in Georgia. Designed for junior and senior high school students, it can be used as supplementary reading or a short unit. A teacher's guide is included. The Stamp Act was levied by Britain to force the…

Cook, James F.

82

Postal Service unveils new space stamps at KSC  

NASA Technical Reports Server (NTRS)

Applauding the unveiling of the U.S. Postal Service's newest series of stamps, Space Discovery, are are (left to right) Barry Ziehl, U.S. Postal Service; JoAnn Morgan, KSC associate director of advanced development and shuttle upgrades; Karla Corcoran, Postal Service inspector general; Kristene A. Graves, a student from Lewis Carroll Elementary School; and Dr. Donald Thomas, astronaut and veteran of four Shuttle missions. During the ceremony, Kristene read her essay 'My Stamp Adventure' that she had written for an area-wide contest for the event. The unveiling took place at the KSC Visitor Complex and coincided with NASA's 40th anniversary on this date. Behind the large display can be seen the mockup of an orbiter. The stamps were designed by renowned aerospace artist Attila Heija. The strip of five individual stamps together make up a futuristic scene complete with space vehicles, a futuristic space city, and space explorers. The stamps are available nationwide beginning Oct. 1.

1998-01-01

83

Postal Service unveils new space stamps at KSC  

NASA Technical Reports Server (NTRS)

The U.S. Postal Service unveils its newest series of stamps, Space Discovery, at the KSC Visitor Complex. The event coincided with NASA's 40th anniversary on this date. Participating in the unveiling are (left to right) Barry Ziehl, U.S. Postal Service; JoAnn Morgan, KSC associate director of advanced development and shuttle upgrades; Karla Corcoran, Postal Service inspector general; Kristene A. Graves, a student from Lewis Carroll Elementary School ; and Dr. Donald Thomas, astronaut and veteran of four Shuttle missions. Behind them is the mockup of an orbiter. During the ceremony, Kristene read her essay 'My Stamp Adventure' that she had written for an area-wide contest for the event. The stamps were designed by renowned aerospace artist Attila Heija. The strip of five individual stamps together make up a futuristic scene complete with space vehicles, a futuristic space city, and space explorers. The stamps are available nationwide beginning Oct. 1.

1998-01-01

84

Comparison of extrusion strains produced by cosine and conical dies  

NASA Astrophysics Data System (ADS)

Visioplastic analysis is used to compare strain fields produced in cylindrical aluminum billets extruded at elevated temperature through axially symmetric dies that have either a cosine or a conical profile. The visioplastic method consists of computing strain rates from changes experienced in a flow function as a billet passes through the extrusion die. The flow function is constructed using a grid that is stamped on an axial plane of the billet before extrusion. After the partially extruded billet is removed from the die numerical methods are used to determine the strain rates from the deformed grid. The state of strain over the extrusion region is computed using transformation and then integration of the strain rates. Results show that, unlike the conical die, the cosine die does not produce strains of reversed sign in the die entry region. The consequent benefits of using cosine dies for extrusion of powder metals are discussed.

Berghaus, D. G.; McCue, J. M.; Peacock, H. B.

1995-02-01

85

Comparison of extrusion strains produced by cosine and conical dies  

SciTech Connect

Visioplastic analysis is used to compare strain fields produced in cylindrical aluminum billets extruded at elevated temperature through axially symmetric dies that have either a cosine or a conical profile. The visioplastic method consists of computing strain rates from changes experienced in a flow function as a billet passes through the extrusion die. The flow function is constructed using a grid that is stamped on an axial plane of the billet before extrusion. After the partially extruded billet is removed from the die, numerical methods are used to determine the strain rates from the deformed grid. The state of strain over the extrusion region is computed using transformation and then integration of the strain rates. Results show that, unlike the conical die, the cosine die does not produce strains of reversed sign in the die entry region. The consequent benefits of using cosine dies for extrusion of powder metals are discussed.

Berghaus, D.G.; McCue, J.M. [Georgia Inst. of Tech., Atlanta, GA (United States); Peacock, H.B. [Dept. of Energy, Aiken, SC (United States). Savannah River Lab.

1995-02-01

86

Experimental Characterization of Heat Transfer Coefficients During Hot Forming Die Quenching of Boron Steel  

NASA Astrophysics Data System (ADS)

The heat transfer coefficient (HTC) between the sheet metal and the cold tool is required to predict the final microstructure and mechanical properties of parts manufactured via hot forming die quenching. Temperature data obtained from hot stamping experiments conducted on boron steel blanks were processed using an inverse heat conduction algorithm to calculate heat fluxes and temperatures at the blank/die interface. The effect of the thermocouple response time on the calculated heat flux was compensated by minimizing the heat imbalance between the blank and the die. Peak HTCs obtained at the end of the stamping phase match steady-state model predictions. At higher blank temperatures, the time-dependent deformation of contact asperities is associated with a transient regime in which calculated HTCs are a function of the initial stamping temperature.

Caron, Etienne; Daun, Kyle J.; Wells, Mary A.

2013-04-01

87

Authentication, Time-Stamping and Digital Signatures  

NASA Technical Reports Server (NTRS)

Time and frequency data are often transmitted over public packet-switched networks, and the use of this mode of distribution is likely to increase in the near future as high-speed logical circuits transmitted via networks replace point-to-point physical circuits. ALthough these networks have many technical advantages, they are susceptible to evesdropping, spoofing, and the alteration of messages enroute using techniques that are relatively simple to implement and quite difficult to detect. I will discuss a number of solutions to these problems, including the authentication mechanism used in the Network Time Protocol (NTP) and the more general technique of signing time-stamps using public key cryptography. This public key method can also be used to implement the digital analog of a Notary Public, and I will discuss how such a system could be realized on a public network such as the Internet.

Levine, Judah

1996-01-01

88

Stamping and wrinkling of elastic plates  

E-print Network

We study the peculiar wrinkling pattern of an elastic plate stamped into a spherical mold. We show that the wavelength of the wrinkles decreases with their amplitude, but reaches a maximum when the amplitude is of the order of the thickness of the plate. The force required for compressing the wrinkled plate presents a maximum independent of the thickness. A model is derived and verified experimentally for a simple one-dimensional case. This model is extended to the initial situation through an effective Young modulus representing the mechanical behavior of wrinkled state. The theoretical predictions are shown to be in good agreement with the experiments. This approach provides a complement to the "tension field theory" developed for wrinkles with unconstrained amplitude.

J. Hure; B. Roman; J. Bico

2012-06-30

89

Micropatterned agarose gels for stamping arrays of proteins and gradients of proteins  

E-print Network

Micropatterned agarose gels for stamping arrays of proteins and gradients of proteins Michael Mayer of planar microarrays and gradients of proteins using patterned agarose stamps. It demonstrates: (i) on pat- terned agarose stamps with one or multiple (here, eight) proteins and repetitive stamping

Prentiss, Mara

90

CRCHD - Press Kit  

Cancer.gov

CRCHD - Press Kit Home News and Events Press Kit Health Disparities News & Articles E-bulletin News Stories & Interviews CRCHD Spotlights Meetings & Events Press Kit Press Kit To support outreach in the community,

91

A STAMP model of the Überlingen aircraft collision accident  

E-print Network

STAMP is a method for evaluating accidents that is based on systems theory. It departs from traditional event chain models that tend to focus on human errors instead of the goals and motives that triggered the errors. The ...

Wong, Brian, 1982 Nov 11-

2004-01-01

92

22. DETAIL OF UPPER STAMP BATTERIES CAMS, TAPPETS AND STEMS, ...  

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

22. DETAIL OF UPPER STAMP BATTERIES CAMS, TAPPETS AND STEMS, LOOKING NORTH NORTHWEST. SEE CA-290-47 (CT) FOR IDENTICAL COLOR TRANSPARENCY. - Skidoo Mine, Park Route 38 (Skidoo Road), Death Valley Junction, Inyo County, CA

93

48. DETAIL OF STAMP BATTERIES CAMS, TAPPETS AND STEMS WITH ...  

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

48. DETAIL OF STAMP BATTERIES CAMS, TAPPETS AND STEMS WITH SIX FOOT SCALE, LOOKING NORTH NORTHWEST. SEE CA-290-24 FOR IDENTICAL B&W NEGATIVE. - Skidoo Mine, Park Route 38 (Skidoo Road), Death Valley Junction, Inyo County, CA

94

24. DETAIL OF STAMP BATTERIES CAMS, TAPPETS AND STEMS WITH ...  

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

24. DETAIL OF STAMP BATTERIES CAMS, TAPPETS AND STEMS WITH SIX FOOT SCALE, LOOKING NORTH NORTHWEST. SEE CA-290-48 (CT) FOR IDENTICAL COLOR TRANSPARENCY. - Skidoo Mine, Park Route 38 (Skidoo Road), Death Valley Junction, Inyo County, CA

95

47. DETAIL OF UPPER STAMP BATTERIES CAMS, TAPPETS AND STEMS, ...  

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

47. DETAIL OF UPPER STAMP BATTERIES CAMS, TAPPETS AND STEMS, LOOKING NORTH NORTHWEST. SEE CA-290-22 FOR IDENTICAL B&W NEGATIVE. - Skidoo Mine, Park Route 38 (Skidoo Road), Death Valley Junction, Inyo County, CA

96

Potential technologies based on stamped periodic nanoparticle array  

E-print Network

A stamped nanoparticle array patterning technology integrating interference lithography, self assembly and soft lithography is assessed. This technology is capable of parallel patterning of nanoparticles at a large scale. ...

Wang, Zongbin

2009-01-01

97

OVERVIEW OF LOWER TRAM TERMINAL AND STAMP MILL SITE, LOOKING ...  

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

OVERVIEW OF LOWER TRAM TERMINAL AND STAMP MILL SITE, LOOKING NORTHWEST. A WATER SHAFT IS COVERED WITH A PROTECTIVE NET IN THE LOWER RIGHT. - Keane Wonder Mine, Park Route 4 (Daylight Pass Cutoff), Death Valley Junction, Inyo County, CA

98

43. OBLIQUE DETAIL VIEW OF STAMP BATTERIES AND APRONS, LOOKING ...  

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

43. OBLIQUE DETAIL VIEW OF STAMP BATTERIES AND APRONS, LOOKING SOUTHWEST. EACH BATTERY CONTAINS FIVE STAMPS. TWO OF THE THREE BATTERIES ARE SIDE BY SIDE IN FOREGROUND, WHILE THE THIRD BATTERY IS SEPARATE (LOWER RIGHT). STAIRWAY UP IS AT LEFT SIDE. SEE CA-290-16 FOR IDENTICAL B&W NEGATIVE. - Skidoo Mine, Park Route 38 (Skidoo Road), Death Valley Junction, Inyo County, CA

99

Spacecraft Trajectory Analysis and Mission Planning Simulation (STAMPS) Software  

NASA Technical Reports Server (NTRS)

STAMPS simulates either three- or six-degree-of-freedom cases for all spacecraft flight phases using translated HAL flight software or generic GN&C models. Single or multiple trajectories can be simulated for use in optimization and dispersion analysis. It includes math models for the vehicle and environment, and currently features a "C" version of shuttle onboard flight software. The STAMPS software is used for mission planning and analysis within ascent/descent, rendezvous, proximity operations, and navigation flight design areas.

Puckett, Nancy; Pettinger, Kris; Hallstrom,John; Brownfield, Dana; Blinn, Eric; Williams, Frank; Wiuff, Kelli; McCarty, Steve; Ramirez, Daniel; Lamotte, Nicole; Vu, Tuan

2014-01-01

100

Die Verfassung  

Microsoft Academic Search

Laut seiner Verfassung ist das Großherzogtum ein demokratisches Staatswesen.2 Die Nation ist der Souverän. Der demokratische\\u000a Charakter ist eine relativ rezente Errungenschaft. Bis 1919 dominierten die autokratischen Merkmale, da zumindest gemäß der\\u000a Verfassung alle Attribute der Souveränität in der Person des Großherzogs konzentriert waren. Erst 1919 wurde das Prinzip,\\u000a „la puissance souveraine réside dans la Nation“, in Artikel 32(1) der

Mario Hirsch; Marc Thewes

101

OVERVIEW OF STAMP MILL SITE,LOOKING SOUTHWEST. THE LOWER TRAM TERMINAL ...  

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

OVERVIEW OF STAMP MILL SITE,LOOKING SOUTHWEST. THE LOWER TRAM TERMINAL IS OUT OF FRAME, JUST TO THE RIGHT. WATER TANK, LOADING PLATFORM, AND TRAM TRESTLE LEADING UP TO THE TRAM TERMINAL ARE AT RIGHT. THE STRUCTURE AT EXTREME RIGHT BELOW THE TRESTLE, ARE REMAINS OF A SECONDARY ORE BIN, WITH BALL MILL FOUNDATIONS AND WOOD DEBRIS JUST BELOW ON THE SECOND LEVEL. AT CENTER IS A BOILER AND THE FRAME WORK OF A FILTER PRESS. THE SMALL STRUCTURE AT CENTER LEFT IS AN INTERPRETIVE SIGN PLACED BY THE PARK SERVICE. AT LOWER LEFT, THIRD LEVEL OF THE MILL, ARE THE REMAINS OF A BLACKSMITH'S FORGE. - Keane Wonder Mine, Park Route 4 (Daylight Pass Cutoff), Death Valley Junction, Inyo County, CA

102

On the correct selection of the channel die in ECAP processes  

Microsoft Academic Search

Equal channel angular pressing is an innovative process for obtaining severe plastic deformations in materials. In this work an optimised design of the channel die is presented which improves deformations obtained in materials using standard dies.

C. J. Luis Pérez

2004-01-01

103

Investigation of the Hot-Stamping Process for Advanced High-Strength Steel Sheet by Numerical Simulation  

NASA Astrophysics Data System (ADS)

Hot forming is a new way to manufacture complex-shaped components of advanced high-strength steel (AHSS) sheet with a minimum of spring-back. Numerical simulation is an effective way to examine the hot-forming process, particularly to determine thermal and thermo-mechanical characteristics and their dependencies on temperature, strain and strain rate. The flow behavior of the 22MnB5 AHSS is investigated through hot tensile tests. A 3D finite element (FE) model of hot-stamping process for the [InlineMediaObject not available: see fulltext.] shaped part is built under the ABAQUS/Explicit environment based on the solutions of several key problems, such as treatment of contact between blank and tools, determination of material characteristics and meshing, etc. Numerical simulation is carried out to investigate the influence of blank holder force (BHF) and die gap on the hot-forming process for the [InlineMediaObject not available: see fulltext.] shaped part. Numerical results show the FE model is effective in simulation of hot-forming process. Large BHF reduces the amount of spring-back and improves the contact of flange with tools while avoiding cracking of stamped part. Die gap has a considerable influence on the distribution of temperature on side walls; the larger the die gap, higher is the temperature on the sidewall of [InlineMediaObject not available: see fulltext.] shaped part.

Liu, H. S.; Xing, Z. W.; Bao, J.; Song, B. Y.

2010-04-01

104

Digital time stamping system based on open source technologies.  

PubMed

A digital time stamping system based on open source technologies (LINUX-UBUNTU, OpenTSA, OpenSSL, MySQL) is described in detail, including all important testing results. The system, called BALTICTIME, was developed under a project sponsored by the European Commission under the Program FP 6. It was designed to meet the requirements posed to the systems of legal and accountable time stamping and to be applicable to the hardware commonly used by the national time metrology laboratories. The BALTICTIME system is intended for the use of governmental and other institutions as well as personal bodies. Testing results demonstrate that the time stamps issued to the user by BALTICTIME and saved in BALTICTIME's archives (which implies that the time stamps are accountable) meet all the regulatory requirements. Moreover, the BALTICTIME in its present implementation is able to issue more than 10 digital time stamps per second. The system can be enhanced if needed. The test version of the BALTICTIME service is free and available at http://baltictime. pfi.lt:8080/btws/ and http://baltictime.lnmc.lv:8080/btws/. PMID:20211793

Miskinis, Rimantas; Smirnov, Dmitrij; Urba, Emilis; Burokas, Andrius; Malysko, Bogdan; Laud, Peeter; Zuliani, Francesco

2010-03-01

105

Coupled numerical simulation of hot stamping process and experimental verification  

NASA Astrophysics Data System (ADS)

Hot stamping process is a high non-linear process showing the effect on thermal, mechanical and metallurgical phenomena as they relate to each other. In order to carry out this coupled numerical simulation, fundamental thermal properties such as interfacial heat transfer coefficient and convection heat transfer coefficient as well as crucial mechanics properties were first investigated. Hot stamping tools with cooling system which has been optimized by genetic algorithm were employed in the simulation. The coupled numerical simulation to the whole hot stamping process was built with the ABAQUS/Explicit and FLUENT. Experiment was setup and the results of blank temperature and spring-back were compared with the results of coupled numerical simulation. The comparisons show that the simulation results of numerical model are consistent with experimental results.

Li, Ye; Ying, Liang; Hu, Ping; Shi, Dongyong; Zhao, Xi; Dai, Minghua

2013-05-01

106

Numerical Simulation of Textile Composite Stamping On Double Dome  

SciTech Connect

Stamping is one of the most effective ways to form textile composites in industry for providing high-strength, low-weight and cost-effective products. This paper presents a fully continuum mechanics-based approach for stamping simulation of textile fiber reinforced composites by using finite element (FE) method. A previously developed non-orthogonal constitutive model is used to represent the anisotropic mechanical behavior of textile composites under large deformation during stamping. Simulation are performed on a balanced plain weave composite with 0 deg./90 deg. and {+-}45 deg. as initial yarn orientation over a benchmark double dome device. Simulation results show good agreement with experimental output in terms of a number of parameters selected for comparison.

Xiongqi Peng [School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, 710072 (China); Department of Plasticity Engineering, Shanghai Jiao Tong University, Shanghai, 200030 (China); Zia Ur Rehman [School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, 710072 (China)

2011-05-04

107

39. CLOSE UP DETAIL OF THE FEEDER AND STAMP CONNECTION. ...  

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

39. CLOSE UP DETAIL OF THE FEEDER AND STAMP CONNECTION. THE STAMP AN MORTAR BOX ARE ON THE LEFT AND THE FEEDER WITH ITS FEEDER DISK IS ON THE RIGHT. NOTE THE COLLAR ON THE CENTER STAMP STEM (UPPER LEFT CORNER OF THE IMAGE) THAT ACTIVATES THE LEVER IN THE CENTER OF THE PHOTO. THE COLLAR IS POSITIONED SUCH THAT WHEN THE LEVEL OF THE MATERIAL REACHES A LOW POINT IN THE MORTAR BOX IT PUSHES DOWN ON THE LEVER WHICH IN TURN ACTIVATES THE AUTOMATIC FEEDER DRIVE MECHANISM WHICH THEM DELIVERS ORE INTO THE BACKSIDE OF THE MORTAR BOX. - Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mono County, CA

108

A clinical experience of 'STAMP' plate-guided Bonebridge implantation  

PubMed Central

Conclusion The surface template-assisted marker positioning (STAMP) method is useful for successful Bonebridge™ (BB) implantation on a planned site while avoiding dangerous positions. Objectives To confirm the usefulness of the STAMP method for the safe operation of BB. Methods From a patient’s temporal bone CT data, a guide plate and confirmation plate were generated by the STAMP method. The guide plate is used to mark the correct place for implantation, while the confirmation plate lets us know the correct angle and depth of the hole. Results With the guide plate, the correct place for BB implantation was easily found. The hole was made to be an appropriate size with the confirmation plate while exposing only a small part of sigmoid sinus as simulated. Finally, the BB implant was successfully placed exactly at the planned site. PMID:25115972

Matsumoto, Nozomu; Cho, Byunghyun; Ono, Hidenori; Mori, Kentaro; Tsukada, Keita; Ichinose, Aya; Yoshimura, Hidekane; Iwasaki, Satoshi; Komune, Shizuo; Usami, Shin-ichi

2014-01-01

109

41 CFR 109-25.103 - Promotional materials, trading stamps, or bonus goods.  

Code of Federal Regulations, 2010 CFR

...Management 3 2010-07-01 2010-07-01 false Promotional materials, trading stamps, or bonus goods. 109-25...25-GENERAL 25.1-General Policies § 109-25.103 Promotional materials, trading stamps, or bonus...

2010-07-01

110

41 CFR 101-25.103 - Promotional materials, trading stamps, or bonus goods.  

Code of Federal Regulations, 2010 CFR

...Management 2 2010-07-01 2010-07-01 true Promotional materials, trading stamps, or bonus goods. 101-25...25-GENERAL 25.1-General Policies § 101-25.103 Promotional materials, trading stamps, or bonus...

2010-07-01

111

75 FR 15740 - Valentine Tool and Stamping, Inc.: Norton, MA; Notice of Termination of Investigation  

Federal Register 2010, 2011, 2012, 2013

...TA-W-71,731] Valentine Tool and Stamping, Inc.: Norton, MA; Notice of Termination of Investigation Pursuant to Section...on behalf of workers of Valentine Tool and Stamping, Inc., Norton, Massachusetts. The petitioner has requested that the...

2010-03-30

112

The Pichs Collection: Exploring Cuba's History Through Postal Stamps  

NSDL National Science Digital Library

Thanks to Web technology, visitors can take in all three of these small, geographically distant exhibitions, sponsored by the Smithsonian Institution and its affiliates, in less than an afternoon. Exploring Cuba's History through Postal Stamps is the first collaboration between the Smithsonian and the San Carlos Institute of Miami, Florida. Curator Ronald E.G. Davies, Aviation Historian, National Air and Space Museum, presents images of stamps, letters, and postcards, some with drawings of Cuban airplanes, photographs of planes, maps, or text, on the brown paper background of an airmail package.

113

Culture, distance, and threat perception: comment on Stamps (2011).  

PubMed

Stamps found that the effects of visual cues on the perception of threat decrease with distance, even when the range of distance is extended to 45 m. The present comment suggests that the findings Stamps obtained in a Western culture may not hold in other cultures. The robustness of these findings might be improved by using real targets at actual physical distances and "necessarily high" threats. Further studies are needed to examine whether other dimensions of psychological distance have the same effect on threat perception as does spatial distance. There is also a need to examine whether perceived threats have a significant effect on the perception of spatial distance. PMID:23409589

Su, Yin; Zheng, Yu; Li, Shu

2012-12-01

114

OVERVIEW OF LOWER TRAM TERMINAL AND STAMP MILL SITE, LOOKING ...  

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

OVERVIEW OF LOWER TRAM TERMINAL AND STAMP MILL SITE, LOOKING NORTHWEST. THE AERIAL TRAMWAY BEGINS AT THE TERMINAL AND CONTINUES NORTH TO THE UPPER RIGHT. THE FIRST SUPPORT TOWER CAN BE SEEN. JUST BELOW THE WATER TANK IS A LOADING PLATFORM AND TRAM TRESTLE USED FOR THE TRANSPORT OF SUPPLIES THAT LEAD UP TO THE TRAM TERMINAL. ALL THREE LEVELS OF THE FORMER 20 STAMP MILL CAN BE SEEN AT CENTER. SEE CA-291-02 FOR IDENTICAL B&W NEGATIVE. - Keane Wonder Mine, Park Route 4 (Daylight Pass Cutoff), Death Valley Junction, Inyo County, CA

115

OVERVIEW OF LOWER TRAM TERMINAL AND STAMP MILL SITE, LOOKING ...  

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

OVERVIEW OF LOWER TRAM TERMINAL AND STAMP MILL SITE, LOOKING NORTHWEST. THE AERIAL TRAMWAY BEGINS AT THE TERMINAL AND CONTINUES NORTH TO THE UPPER RIGHT. THE FIRST SUPPORT TOWER CAN BE SEEN. JUST BELOW THE WATER TANK IS A LOADING PLATFORM AND TRAM TRESTLE USED FOR THE TRANSPORT OF SUPPLIES THAT LEAD UP TO THE TRAM TERMINAL. ALL THREE LEVELS OF THE FORMER 20 STAMP MILL CAN BE SEEN AT CENTER. SEE CA-291-46( CT) FOR IDENTICAL COLOR TRANSPARENCY. - Keane Wonder Mine, Park Route 4 (Daylight Pass Cutoff), Death Valley Junction, Inyo County, CA

116

Press Start  

NASA Astrophysics Data System (ADS)

This level sets the stage for the design philosophy called “Triadic Game Design” (TGD). This design philosophy can be summarized with the following sentence: it takes two to tango, but it takes three to design a meaningful game or a game with a purpose. Before the philosophy is further explained, this level will first delve into what is meant by a meaningful game or a game with a purpose. Many terms and definitions have seen the light and in this book I will specifically orient at digital games that aim to have an effect beyond the context of the game itself. Subsequently, a historical overview is given of the usage of games with a serious purpose which starts from the moment we human beings started to walk on our feet till our contemporary society. It turns out that we have been using games for all kinds of non-entertainment purposes for already quite a long time. With this introductory material in the back of our minds, I will explain the concept of TGD by means of a puzzle. After that, the protagonist of this book, the game Levee Patroller, is introduced. Based on the development of this game, the idea of TGD, which stresses to balance three different worlds, the worlds of Reality, Meaning, and Play, came into being. Interested? Then I suggest to quickly “press start!”

Harteveld, Casper

117

Real-Time Cheat-Free Gaming on the Basis of Time-Stamp Service  

Microsoft Academic Search

Summary A cheat-proof protocol for real-time gaming is proposed under the assumption that time-stamp servers issue serially numbered time stamps honestly and are available near every player, i.e., they exist everywhere in the Internet. With this protocol, each player sends its action to the other player and also sends its hash to the nearest time-stamp server. The time-stamp server sends

Shunsuke Mogaki; Masaru Kamada; Tatsuhiro Yonekura; Shusuke Okamoto; Yasuhiro Otaki; Mamun Bin Ibne Reaz

2009-01-01

118

Food-stamp use triples as local despair grows By ANA M. VALDES AND ADAM PLAYFORD  

E-print Network

Food-stamp use triples as local despair grows By ANA M. VALDES AND ADAM PLAYFORD Palm Beach Post increases every year in the number of individuals using food stamps to feed their families. In Palm Beach County, 161,250 of the county's 1.3 million residents - 12.4 percent - received food stamps in August

Belogay, Eugene A.

119

75 FR 23565 - Food Stamp Program: Eligibility and Certification Provisions of the Farm Security and Rural...  

Federal Register 2010, 2011, 2012, 2013

...273 RIN 0584-AD30 Food Stamp Program: Eligibility...Provisions of the Farm Security and Rural Investment...final rule entitled, Food Stamp Program: Eligibility...Provisions of the Farm Security and Rural Investment...final rule entitled, Food Stamp Program: Eligibility...Provisions of the Farm Security and Rural...

2010-05-04

120

Armand (Friedrich Strubberg) Die Rache des Mestizen  

E-print Network

stellte, so hinderte in der 1 #12;-- 2 -- Folge der zweijährige Krieg mit England von 1812 bis 1814 eine- ner mit �berfällen und Plünderungen. Die amerikanische Presse erhob ein ungeheures Geschrei und

Wagner, Stephan

121

Bacterial Printing Press that Regenerates Its Ink: Contact-Printing Bacteria Using Hydrogel Stamps  

E-print Network

,3 and are of growing interest in biofilm formation and the broader area of microbial ecology.4,5 Several methods have was developed by Lederberg et al. using surfaces coated with pile fabric to transfer colonies from one plate

Prentiss, Mara

122

Food Stamp Recipients Eat More Vegetables after Viewing Nutrition Videos.  

ERIC Educational Resources Information Center

A study in three California counties found that food stamp recipients who viewed a videotape promoting vegetables had increased their knowledge of vegetables and greatly increased their consumption of potatoes and raw vegetables two to six weeks later. The feasibility of using videotaped nutrition instruction with low-income adults is discussed.…

Joy, Amy Block; Feldman, Nancy; Fujii, Mary Lavender; Garcia, Linda; Hudes, Mark; Mitchell, Rita; Bunch, Sybille; Metz, Diane

1999-01-01

123

Rapid fabrication of nano-structured quartz stamps  

NASA Astrophysics Data System (ADS)

Replication of surface nano-structures from a master stamp allows large-area volume production that is otherwise cost prohibitive through conventional direct-write methods, such as electron beam lithography and focused ion beam milling. However, the creation of a master stamp containing sophisticated patterns still requires significant time on such direct-write tools. We demonstrate a method for reducing this tool time by patterning smaller nano-structures, and then enlarging them to the desired size through isotropic etching. We can create circular structures of any arrangement and size, down to the patterning limits of the direct-write tools. Subsequent metal mask deposition, lift-off, and anisotropic etching transforms the circular patterns to out-of-plane pillar structures for the final stamp. A 1 cm2 area filled with a pattern of 200 nm diameter nano-holes spaced 520 nm apart, requires only 21 h to complete using our process, compared to 75 h using conventional fabrication. We demonstrate the utility and practicality of the quartz stamps through polymer embossing and replication. Embossed polymer nano-hole arrays are coated with a Cr/Au (5/100 nm) film to create surface plasmon resonance structures. Extraordinary optical transmission spectra from the metallized arrays show the expected spectral features when compared to focused ion beam milled structures.

Chuo, Yindar; Landrock, Clint; Omrane, Badr; Hohertz, Donna; Grayli, Sasan V.; Kavanagh, Karen; Kaminska, Bozena

2013-02-01

124

The Formability of Friction Stir Welds in Automotive Stamping Environments  

SciTech Connect

Automobile body and truck cab structures are composed primarily of stampings formed from monolithic and constant gage blanks. Cost and weight penalties can arrise when strength or other requirements in one small area of the part leads to the use of a material or gage that is overmatched to the needs of the rest of the stamping. Tailor Welded Blanks (TWBs) are hybrid sheet products composed of either different materials or different thickness sheets that are joined together, then subjected to a stamping operation to create a formed assembly. The strategy is employed generally to save weight and material costs in the formed assembly by placing higher strength or thicker sections only where needed. The forming or stamping process requires the joint to be severely deformed along with the parent sheets. Aluminum TWBs for automotive applications are particularly problematic because of the low formability of aluminum weld metal. Friction Stir Welding (FSW) is a process recently applied to Aluminum TWBs that has the potential to produce a higher quality weld. The current study presents data on the mechanical properties, formability, and FSW weld process parameter development for friction stir woined, aluminum, Tailor Welded Blanks. Friction stir welded TWBs can be shown to have higher formability, higher ductility, and lower defect content than many competing joining processes, and they can be fabricated at speeds appropriate for automotive manufacturing.

Grant, Glenn J.; Davies, Richard W.; Stephens, Elizabeth V.; wazny, scott; Kaunitz, Leon; Waldron, D.

2005-04-01

125

The Formability of Friction Stir Welds in Automotive Stamping Environments  

SciTech Connect

Automobile body and truck cab structures are composed primarily of stampings formed from monolithic and constant gage blanks. Cost and weight penalties can arise when strength or other requirements in one small area of the part leads to the use of a material or gage that is overmatched to the needs of the rest of the stamping. Tailor Welded Blanks (TWBs) are hybrid sheet products composed of either different materials or different thickness sheets that are joined together, then subjected to a stamping operation to create a formed assembly. The strategy is employed generally to save weight and material costs in the formed assembly by placing higher strength or thicker sections only where needed. The forming or stamping process requires the joint to be severely deformed along with the parent sheets. Aluminum TWBs for automotive applications are particularly problematic because of the low formability of aluminum weld metal. Friction Stir Welding (FSW) is a process recently applied to Aluminum TWBs that has the potential to produce a higher quality weld. The current study presents data on the mechanical properties, formability, and FSW weld process parameter development for friction stir welded aluminum, Tailor Welded Blanks. Friction stir welded TWBs can be shown to have higher formability, higher ductility, and lower defect content than many competing joining processes, and they can be fabricated at speeds appropriate for automotive manufacturing.

Grant, Glenn J.; Davies, Richard W.; Stephens, Elizabeth V.; Wazny, Scott; Kaunitz, Leon; Waldron, Douglas J.

2006-02-01

126

46. DETAIL OF UPPER STAMP BATTERIES CAMS, TAPPETS, STEMS, AND ...  

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

46. DETAIL OF UPPER STAMP BATTERIES CAMS, TAPPETS, STEMS, AND RELATIONSHIP OF BULL WHEEL (LOWER RIGHT) LOOKING NORTH NORTHEAST. SEE CA-290-22 FOR A SIMILAR B&W NEGATIVE. - Skidoo Mine, Park Route 38 (Skidoo Road), Death Valley Junction, Inyo County, CA

127

45. DETAIL ELEVATION OF STAMP BATTERIES AND APRONS, LOOKING SOUTHEAST. ...  

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

45. DETAIL ELEVATION OF STAMP BATTERIES AND APRONS, LOOKING SOUTHEAST. MORTARS, BOSSES, MOST SHOES, STEMS, TAPPETS, CAMS AND BULL WHEELS ARE CLEARLY VISIBLE ON THE UPPER MORTAR BLOCKS (BELOW CENTER) UNION IRON WORKS, SAN FRANCISCO C-L. SEE CA-290-18 FOR A SIMILAR B&W NEGATIVE. - Skidoo Mine, Park Route 38 (Skidoo Road), Death Valley Junction, Inyo County, CA

128

42. INTERIOR VIEW LOOKING NORTHEAST AT THE STAMP BATTERIES. ONE ...  

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

42. INTERIOR VIEW LOOKING NORTHEAST AT THE STAMP BATTERIES. ONE OF THE DRIVE WHEELS IS ON THE FOREGROUND RIGHT WITH AN EXTANT DRIVE BELT. THE CAM SHAFT EXTENDS TO THE BACKGROUND CENTER. - Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mono County, CA

129

Hamptonese and Hidden Markov Models Mark Stamp and Ethan Le  

E-print Network

Hamptonese and Hidden Markov Models Mark Stamp and Ethan Le Department of Computer Science, San for the General Services Administration in Washington, DC, where he worked until his death in 1964. Beyond- ently had no family or close friends. Shortly after Hampton's death (due to stomach cancer), the owner

Stamp, Mark

130

Stamping Oriented Molecular Monolayers Using Liquid Crystal Inks  

E-print Network

and shallower groove amplitude of ~20 nm (Figures S1E-H). Si masters were fabricated from oriented single oriented pyrolytic graphite (HOPG) substrate (Advanced Ceramics Inc., ZYB-grade), heating to 100 °C for 2 showed it did not significantly affect the results. Although the stamp was nominally in direct contact

Patrick, David L.

131

2014-15 SNAP (Food Stamps) Verification Worksheet  

E-print Network

2014-15 SNAP (Food Stamps) Verification Worksheet Office of Student Financial Assistance P.O. Box that all information reported on this worksheet is complete and correct. Warning: If you purposely give: ___________________ G:\\Financial Aid\\Forms\\2014-15\\1415_SNAP_Verification_Worksheet.docx RRAAREQ Code: ASNAP 3

Pantaleone, Jim

132

2013-14 SNAP (Food Stamps) Verification Worksheet  

E-print Network

2013-14 SNAP (Food Stamps) Verification Worksheet Office of Student Financial Assistance P.O. Box.aid@uaa.alaska.edu G:\\Financial Aid\\Forms\\2013-14\\1314_SNAP_Verification_Worksheet.docx RRAAREQ Code: ASNAP Your Free that all information reported on this worksheet is complete and correct. Warning: If you purposely give

Pantaleone, Jim

133

Encouraging Moderation in State Policies on Collecting Food Stamp Claims  

Microsoft Academic Search

Regulations issued by the Food and Nutrition Service, U.S. Department of Agriculture in July 2000 promote efficient and effective food stamp claims collection by the states. These regulations give states significant flexibility in tailoring their procedures on filing claims. States can incorporate waiver and compromise policies that increase efficiency and can serve low-income households.

David A. Super

2005-01-01

134

The Ph.D. Now Comes with Food Stamps  

ERIC Educational Resources Information Center

A record number of people are depending on federally financed food assistance. Food-stamp use increased from an average monthly caseload of 17 million in 2000 to 44 million people in 2011, according to the U.S. Department of Agriculture's Web site. Last year, one in six people--almost 50 million Americans, or 15 percent of the population--received…

Patton, Stacey

2012-01-01

135

Die Milchzähne des Feldhasen  

Microsoft Academic Search

Zusammenfassung  Der gemeine Feldhase (Lepus europaeus Pallas 1778) ist ein heterodontes Säugetier, das zwei Zahngenerationen besitzt. Die Milchzahngeneration, die unterdrückt ist, verschwindet in der vierten Lebenswoche, während die Dauerzahngeneration, abgesehen von Unglücksfällen, bis zum Tode erhalten bleibt. Beim Feldhasen ist die Hypselodontie sekundär. Die Milchzähne, deren Zahl zwölf beträgt, haben Wurzeln, die den Dauerzähnen fehlen. Endlich besitzt dieses Säugetier ein einziges

D. Fraguglione

1957-01-01

136

The Food Stamp Program and Supplemental Security Income.  

PubMed

The Food Stamp Program (FSP) and Supplemental Security Income (SSI) are important parts of national public assistance policy, and there is considerable overlap in the populations that the programs serve. About half of all SSI recipients reside in FSP recipient households. This article uses Social Security administrative data and the Food Stamp Quality Control samples for federal fiscal years 2001-2006 to study the prevalence of food stamp receipt among households with SSI recipients, the contribution of FSP to household income, and the importance of various FSP features in contributing to the well-being of recipient households. The prevalence of FSP participation among households that include SSI recipients is estimated to have grown steadily over the entire 2001-2006 period, rising from 47.4 percent in 2001 to 55.6 percent in 2006. This growth has occurred across all age groups of SSI recipients. The FSP contribution to household income has grown as well. In 2001, FSP increased the income of the households of SSI/FSP recipients by 13 percent; by 2006 the increase was 16.8 percent. Almost 80 percent of the food stamp recipient households that include SSI recipients receive increased benefits because of excess housing costs. In 2006, 44 percent of SSI recipients lived in households that did not receive food stamps. Given available information, it is difficult to gauge the FSP eligibility of nonparticipating households and, therefore, to assess the potential benefit of outreach efforts. Currently available measures of FSP take-up probably overstate participation among eligible households that include SSI recipients, and there is some evidence that enhanced state promotion of the FSP raises participation among households with SSI recipients. We conclude with recommendation for review and renewal of collaboration between the Food and Nutrition Service of the U.S. Department of Agriculture (the agency responsible for administering the FSP) and the Social Security Administration in ensuring that eligible SSI recipients utilize FSP benefits. PMID:18777670

Trenkamp, Brad; Wiseman, Michael

2007-01-01

137

Fabrication of Sub-100 nm Sized Patterns on Curved Acryl Substrate Using a Flexible Stamp  

NASA Astrophysics Data System (ADS)

As small as 100 nm patterns were successfully transferred onto a non-planar acryl substrate using both UV nanoimprinting and hot embossing techniques. Two different types of flexible imprint stamps, electroformed nickel foil stamp and molded water-soluble poly(vinyl alcohol) (PVA) stamp, were used. 100 nm line and space pattern of Si master was successfully transferred to nickel foil stamp and PVA stamp and their patterns were also transferred to the surface of curved acryl substrate using either UV nanoimprint lithography or hot embossing lithography.

Hong, Sung-Hoon; Han, Kang-Soo; Byeon, Kyeong-Jae; Lee, Heon; Choi, Kyung-Woo

2008-05-01

138

Thermo fatigue cracking of die casting dies  

Microsoft Academic Search

The investigation of aluminium alloy die casting die failures was done with the emphasis on thermal cracks. The aim of the study was to prolog the in-service die life by cladding with maraging steels, which would be economically beneficial. A vast analysis of thermal fatigue cracks in aluminium alloy die casting is done. Immersion test apparatus was developed, which enables

D. Klob?ar; L. Kosec; B. Kosec; J. Tušek

2010-01-01

139

Laser and focused ion beam combined machining for micro dies.  

PubMed

We have developed a laser and focused ion beam (FIB) compound process for press mold dies of a micro lens array (MLA) and a micro needle array (MNA) in a glassy carbon (GC). The press mold die of the MLA was roughly fabricated by UV-YAG laser. After this process, we finished this surface by scanning FIB. As a result, higher accuracy and good roughness of surface profile can be realized. An optical glass is used to confirm the shape of lens. Moreover, we fabricated 6 × 6 through-holes in the GC by the spiral drilling in addition to the focus position movement of the UV laser for press mold die of the MNA. After the FIB process, we were able to make the needle die of surface and hole wall roughness less than 0.9 ?m. A silicon rubber is used to confirm the shape of the holes. PMID:22380333

Yoshida, Y; Okazaki, W; Uchida, T

2012-02-01

140

Sputtered protective coatings for die casting dies  

SciTech Connect

This investigation determined whether selected ion beam sputtered coatings on H-13 die steel would have the potential of improving the thermal fatigue behavior of the steel used as a die in aluminum die casting. The coatings were selected to test candidate insulators and metals capable of providing protection of the die surface. The studies indicate that 1 micrometer thick W and Pt coatings reduced the thermal fatigue more than any other coating tested and are candidates to be used on a die surface to increase die life.

Mirtich, M.J.; Nieh, C.Y.

1981-01-01

141

Small Press Roundup  

ERIC Educational Resources Information Center

A small press is, essentially, an enterprise dedicated to overcoming routine publishing attitudes. Reviewing services, reference aids, bookstores, and publishers' addresses are included in this review of small press publications for 1973. (Author/SM)

Katz, Bill

1973-01-01

142

44. OBLIQUE DETAIL VIEW OF STAMP BATTERIES AND APRONS, LOOKING ...  

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

44. OBLIQUE DETAIL VIEW OF STAMP BATTERIES AND APRONS, LOOKING SOUTHWEST. THIS IS THE IDENTICAL PERSPECTIVE GIVEN I CA-290-43 (CT), BUT THIS IS A TIGHTER (CLOSER) SHOT. APRONS AND STAIRWAY ARE OMITTED. EACH BATTERY CONTAINS FIVE SAMPS. TWO OR THE THREE BATTERIES ARE SIDE BY SIDE IN FOREGROUND, WHILE THE THIRD BATTERY IS SEPARATE (LOWER RIGHT). - Skidoo Mine, Park Route 38 (Skidoo Road), Death Valley Junction, Inyo County, CA

143

18. DETAIL ELEVATION OF STAMP BATTERIES AND APRONS, LOOKING SOUTHEAST. ...  

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

18. DETAIL ELEVATION OF STAMP BATTERIES AND APRONS, LOOKING SOUTHEAST. MORTARS, BOSSES, MOST SHOES, STEMS, TAPPETS, CAMS AND BULL WHEELS ARE CLEARLY VISIBLE AND INTACT. NAMEPLATE CASTING IS CLEARLY VISIBLE ON THE UPPER MORTAR BLOCKS (BELOW CENTER) UNION IRON WORKS, SAN FRANCISCO C-L, SEE CA-290-45 (CT) FOR A SIMILAR COLOR TRANSPARENCY. - Skidoo Mine, Park Route 38 (Skidoo Road), Death Valley Junction, Inyo County, CA

144

Apparatus for restraining and transporting dies  

DOEpatents

Apparatus for restraining and transporting dies in punch press operations is provided. A floatation platen for supporting a die on the platen's upper surface has a plurality of recessed gas exhaust ports on the platen's lower surface. A source of pressurized gas delivers gas to a platen manifold, for delivery to orifices located in the gas exhaust ports. The flow of gas is controlled by a first valve adjacent the gas source and a second valve adjacent the manifold, with the second valve being used to control the gas flow during movement of the die. In this fashion, a die may be moved on a cushion of air from one workstation to a selected second workstation. A moveable hydraulically operated restraining fixture is also provided, for clamping the die in position during the compacting phase, and for releasing the die after completion of the compacting phase by releasing the hydraulic pressure on the restraining fixture. When pressure in the hydraulic cylinders on the restraining fixture is reversed, the restraining fixture will retract so that there is no contact between the die and the restraining fixture, thereby allowing the die to be removed from a first workstation and moved to a second selected workstation.

Allison, James W. (Monroeville, PA); LaBarre, Timothy L. (Pittsburgh, PA)

1994-01-01

145

Energy Consumption of Die Casting Operations  

SciTech Connect

Molten metal processing is inherently energy intensive and roughly 25% of the cost of die-cast products can be traced to some form of energy consumption [1]. The obvious major energy requirements are for melting and holding molten alloy in preparation for casting. The proper selection and maintenance of melting and holding equipment are clearly important factors in minimizing energy consumption in die-casting operations [2]. In addition to energy consumption, furnace selection also influences metal loss due to oxidation, metal quality, and maintenance requirements. Other important factors influencing energy consumption in a die-casting facility include geographic location, alloy(s) cast, starting form of alloy (solid or liquid), overall process flow, casting yield, scrap rate, cycle times, number of shifts per day, days of operation per month, type and size of die-casting form of alloy (solid or liquid), overall process flow, casting yield, scrap rate, cycle times, number of shifts per day, days of operation per month, type and size of die-casting machine, related equipment (robots, trim presses), and downstream processing (machining, plating, assembly, etc.). Each of these factors also may influence the casting quality and productivity of a die-casting enterprise. In a die-casting enterprise, decisions regarding these issues are made frequently and are based on a large number of factors. Therefore, it is not surprising that energy consumption can vary significantly from one die-casting enterprise to the next, and within a single enterprise as function of time.

Jerald Brevick; clark Mount-Campbell; Carroll Mobley

2004-03-15

146

The coupled thermo-mechanical-microstructural finite element modeling of hot stamping process in 22MnB5 steel  

NASA Astrophysics Data System (ADS)

In this study, a coupled thermo-mechanical-microstructural finite element model based on the subroutine of commercial software ABAQUS is developed to predict the hot stamping process in 22MnB5 steel. The Johnson-Mehl-Avrami-Kolmogorov type model with Scheil' additivity rule and Koistinen-Marburger model are adopted to simulate the diffusional phase transformation and diffusionless one respectively. During the calculation of temperature and stress/strain field, the contributions of microstructure evolution, e.g. transformation latent heat, transformation strain, and transformation plasticity are taken into account, which give more insight of the material response. The model allows to evaluate the transient stress and strain distributions, the final microstructure constituent and the final distortion of the sheet part during the press quenching process. The effect of transformation plasticity on the geometry precision and the residual stress are discussed.

Chen, Xiangjun; Xiao, Namin; Li, Dianzhong; Li, Guangyao; Sun, Guangyong

2013-12-01

147

The Global University Press  

ERIC Educational Resources Information Center

The modern world's understanding of American university press has long been shaped by university-press books. American university-press books are good international advertisements for the universities whose logos grace their spines. The growth of transnational scholarship and the expansion of digital communications networks are converging in ways…

Dougherty, Peter J.

2012-01-01

148

Multi-step stamping tools design method based on springback compensation  

NASA Astrophysics Data System (ADS)

The aim of the paper is to present a springback compensation method specific to the manufacturing by multi-step sheet metal forming process of high precision thin metallic parts (called blades) produced for tire industry. The blades (typical dimensions: 50×20×0.5 mm) are produced by a non-conventional stamping process in several successive forming operations using a manual press without blank-holder. To produce the blades within a severe fixed tolerance (±0.05 mm), springback compensation has to be performed during the design stage of the forming tools. Thus, a numerical method based on springback compensation has been developed which consists on iteratively comparing a target part shape with a finite element-simulated part shape following forming and springback. The displacement vectors at each node of the elastically-driven change of the deformed mesh are used to adjust the trial tools design until the desired part shape is achieved. The Finite Element Analysis (FEA) regarding the springback prediction and compensation has been conducted using Abaqusin conjunction with Pythonscripting interface.

Azaouzi, M.; Rauchs, G.; Belouettar, S.

2011-05-01

149

Whom shall we Put on the Postage Stamps?  

NASA Astrophysics Data System (ADS)

We consider the emergence of `notables' within the disciplines of the modern university, the foremost among whom may be selected to appear on postage stamps. Noting that disciplinary culture is as important as content in university education, we suggest that some knowledge of the identity of these notables, passed on by encultured tutors, should be part of it. We observe that notability means different things to different communities, and may arise by some form of nomination or emergence, and in the latter case case may not coincide with formal lists of prizewinners. We illustrate with two case studies of disciplinary communities being polled for views of who occupies their pantheon.

Boyle, Roger D.

2013-03-01

150

A superconducting solenoid and press for permanent magnet fabrication.  

SciTech Connect

For the first time, a superconducting solenoid (SCM) was used to increase the remnant magnetization of sintered NdFeB permanent magnets (PMs). In particular, improved magnetic alignment of commercial-grade PM powder was achieved, as it was axial die pressed into 12.7-mm diameter cylindrical compacts in the 76.2-mm warm bore of a 9-T SCM. The press used to compact the powder is unique and was specifically designed for use with the SCM. Although the press was operated in the batch mode for this proof of concept study, its design is intended to enable automated production. In operation, a simple die and punch set made of nonmagnetic materials was filled with powder and loaded into a nonmagnetic press tube. The cantilevered press tube was inserted horizontally, on a carrier manually advanced along a track, into the SCM. The robustness of the mechanical components and the SCM, in its liquid helium dewar, were specifically designed to allow for insertion and extraction of the magnetic powder and compacts, while operating at 9 T. Compaction was achieved by pressing the punches between the closed end of the press tube and the hydraulic cylinder mounted on the opposite end. Improvements up to 10% in magnetization and 20% in energy products of the permanent magnets were obtained, as the alignment fields were increased above the 2-T maximum field of the electromagnets used in industry. Increases in magnetization of 3% are significant in the mature sintered magnet industry.

Mulcahy, T. M.; Hull, J. R.

2002-07-16

151

Die drool and die drool theory  

NASA Astrophysics Data System (ADS)

When molten plastic is extruded from a die, it sometimes collects on the open face of the die. Known as die drool, this phenomenon costs plastics manufacturers by requiring die cleaning. This has been attributed to many causes, but none of these has led to an equation for the drool rate. In this work we provide an exact analytical solution for the drool rate, and we base this solution on a postulate of a cohesive slip layer near the die walls. We thus attribute die drool to cohesive failure within the fluid at an internal surface where the fluid slips on itself. We adimensionalize the drool rate with the production rate, and call this the build up ratio, BR. We provide an exact analytical solution for BR when the cohesive slip layer either sticks at the wall. We examine the slit geometry corresponding to sheet or film extrusion.

Schmalzer, A. M.; Giacomin, A. Jeffrey

2013-04-01

152

45 CFR 205.25 - Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities.  

Code of Federal Regulations, 2010 CFR

...Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities...Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities...receiving supplemental security income benefits...

2010-10-01

153

IMPLEMENTING AN EMPLOYMENT AND TRAINING PROGRAM FOR FOOD STAMP RECIPIENTS: DILEMMAS AND CHOICES  

Microsoft Academic Search

The food stamp legislation of December 1985 provided another opportunity to experiment with welfare to work reform, this time through employment and training programs for food stamp recipients. This new program can be seen both as an opportunity to move people toward self-sufficiency and as a bundle of programmatic contradictions which threaten that opportunity. Federal requirements for the program are

Joyce Matthews Munns

1987-01-01

154

ENVIRONMENTALLY BENIGN LINERLESS SELF-ADHESIVE COIL STAMPS: R&D AND RECYCLING STUDIES  

E-print Network

ENVIRONMENTALLY BENIGN LINERLESS SELF-ADHESIVE COIL STAMPS: R&D AND RECYCLING STUDIES Kim K been easy and quick to use, and have offered consistent adhesion. For recyclers, however, these adhesive stamps have caused concern for their paper recycling processes. In addition, there is the issue

Abubakr, Said

155

Impact of Food Stamps on the Dietary Adequacy of Poor Children.  

ERIC Educational Resources Information Center

The Food Stamp Program (FSP) is the nation's primary nutrition assistance program for poor families in the United States. This study compared the dietary adequacy of children in poor families receiving food stamps to that of children in poor families not receiving such assistance. Data used were obtained from the 1986 United States Department of…

Cook, John T.; Sherman, Laura P.; Brown, J. Larry

156

For first time since 2007, food stamp use drops in state, Palm Beach County  

E-print Network

For first time since 2007, food stamp use drops in state, Palm Beach County March 13, 2013|By Donna in Palm Beach County fell in February, according to data from the Florida Department of Children from last year when the number of food stamp recipients in Palm Beach County jumped nearly 14 percent

Fernandez, Eduardo

157

Women Putting Our Stamp on America: Biographies and Activities for National Women's History Month, March 1999.  

ERIC Educational Resources Information Center

This booklet, intended for use by educators and by workplace and community organizers, introduces women who have been featured on U.S. postage stamps as well as a few of the women who clearly merit such honor in the future. Postage stamps featuring women have been relatively few and far between and have only skimmed the surface of U.S. women in…

National Women's History Project, Windsor, CA.

158

EFFECTS OF THE FOOD STAMP PROGRAM ON FOOD CONSUMPTION IN THE SOUTHERN UNITED STATES  

Microsoft Academic Search

The Food Stamp Program (FSP) began in 1939 in several ways. First, our analysis is more de- on a limited basis. In 1961, President Kennedy tailed in that it covers the expenditure pattern of created an experimental Food Stamp Program 15 food commodities. Indeed, in order to investi- that became nationwide after enactment of the gate how the FSP affects

Jean-Paul Chavas; M. L. Yeung

1982-01-01

159

Fully automated hot embossing processes utilizing high resolution working stamps  

NASA Astrophysics Data System (ADS)

Nanoimprint Lithography (NIL) is a high throughput replication technology for structures ranging from micrometer down to few nanometers. NIL can be divided into UV-Nanoimprint (UV-NIL) and Hot embossing (HE). The main difference between these two techniques are the material types of both template and resist, i.e transparent templates and photosensitive resists for UV-NIL and non transparent templates and thermoplastic resists for HE. Hot embossing is a low-cost, high throughput fabrication technique of disposable, polymer based devices needed for emerging point-of care diagnostic or bio-sensing applications. This paper describes the technology for imprinting of polymer substrates as well as spin-on polymers by using soft working stamp materials on a fully automated hot embossing system, the EVGR750, built to use this rapid replication processes. Soft working stamps demonstrate the possibility to replicate both, high-aspect ratio features in thermoplastic materials as needed for microfluidic lab-on-chip applications as well as high resolution features down to 50 nm in polymers that can be used as templates for pattern transfer in the fabrication of plasmonic substrates for biosensing applications.

Glinsner, T.; Veres, T.; Kreindl, G.; Roy, E.; Morton, K.; Wieser, T.; Thanner, C.; Treiblmayr, D.; Miller, R.; Lindner, P.

2010-03-01

160

Constitutive relationships of hot stamping boron steel B1500HS  

NASA Astrophysics Data System (ADS)

Constitutive relationship of boron steel is one of the most necessary mathematical models in the numerical simulation of hot stamping. It describes the relationship of the flow stress with strain, strain rate and temperature. In order to simulate hot stamping and get the approximately correct simulation results, the specimens are designed and tested to build the constitutive equations of boron steel B1500HS. Isothermal uniaxial tensile tests are performed at 600-900° with the strain rate of 0.01 s-1, 0.1 s-1, 1.0 s-1 and 10 s-1 by the Gleeble thermo- mechanical simulator, and the true stress-strain curves at the relative conditions are gained. The experimental results show that, the flow stress rises with the decrease of the deformation temperature and with the increase of the strain rate. The constitutive equations depending on the strain, strain rate and temperature are attained by the regression analysis of experimental data. The comparison results show that the computational data using the constitutive relationships are well consistent with the experimental data.

Li, Huiping; He, Lianfang; Zhao, Guoqun; Zhang, Lei

2013-05-01

161

Coupled of thermal-mechanical-transformation numerical simulation on hot stamping with static explicit algorithm  

NASA Astrophysics Data System (ADS)

Thermal-mechanical-transformation coupled theoretical model for hot stamping and rheological behavior of high strength steel at elevated temperatures were obtained through non-isothermal and isothermal tensile tests respectively in this work. The static explicit finite element equations for hot stamping were proposed based on thermal-mechanical-transformation coupled constitutive laws and nonlinear, large deformation analysis. According to these equations, the hot stamping module of KMAS (King Mesh Analysis System) was developed for the numerical simulation of sheet metal forming at elevated temperatures. Afterwards, the hot stamping simulation of a typical B-pillar conducted by the KMAS software was compared to the experiment. The comparison consists of the following sides: temperature distribution, thickness distribution and martensite fraction. The good agreement between numerical simulation and the experiment confirms that the multi-field coupled constitutive laws and the KMAS software can predict hot stamping process accurately.

Hu, P.; Shi, D. Y.; Ying, L.; Shen, G. Z.; Chang, Y.; Liu, W. Q.

2013-05-01

162

Die Deformation Measurement System during Sheet Metal Forming  

NASA Astrophysics Data System (ADS)

In order to reduce affection to the earth environment, it is necessary to lighten the vehicles. For this purpose, high tensile steels are applied. Because of high strength, high forming force is required for producing automotive sheet metal parts. In this situation, since the dies are elastic, they are deformed during forming parts. For reducing die developing period, sheet metal forming simulation is widely applied. In the numerical simulation, rigid dies are usually used for shortening computing time. It means that the forming conditions in the actual forming and the simulation are different. It will make large errors in the results between actual forming and simulation. It can be said that if contact pressure between dies and a sheet metal in the simulation can be reproduced in the actual forming, the differences of forming results between them can also been reduced. The basic idea is to estimate die shape which can produce the same distribution as computed from simulation with rigid dies. In this study, die deformation analyses with Finite Element Method as basic technologies are evaluated. For example, simple shape and actual dies elastic contact problems were investigated. The contact width between simple shape dies was investigated. The computed solutions were in good agreement with experimental results. The one case of the actual dies in two cases was also investigated. Bending force was applied to the blank holder with a mechanical press machine. The methodology shown with applying inductive displacement sensor for measuring die deformation during applying force was also proposed.

Funada, J.; Takahashi, S.; Fukiharu, H.

2011-08-01

163

High School Press Freedom.  

ERIC Educational Resources Information Center

This report focuses on controversial articles written by the high school press, decisions made by the courts regarding students' press freedoms, and reactions to the articles and rulings. Particular attention is given to two rulings concerning censorship of articles about students' sexual atttiudes and activities, the issue of prior restraint of…

Maurer, Diana J.

164

Press Relations: Carter's Example.  

ERIC Educational Resources Information Center

Although different philosophies may motivate presidential-press relations, causing frequent friction or adversity, there is nevertheless a strong degree of cooperation and collaboration between the press and a president of the United States. This interdependence has been particularly evident in recent administrations, and it progresses…

Kindsvatter, Peter S.

165

PRESS RELEASE FROM NEUROPSYCHOPHARMACOLOGY  

E-print Network

Publishing Group. *** PLEASE DO NOT REDISTRIBUTE THIS DOCUMENT *** EMBARGO: 1430 London time (BST) / 0930 US the papers mentioned on our press releases, but are sometimes accused of doing so. If you ever consider that a story has been hyped, please do not hesitate to contact us at press@nature.com, citing the specific

Cai, Long

166

Linkping University Electronic Press  

E-print Network

Faculty), Per Hultman (Medical Faculty), Mark Ollila who was replaced by Ulf Nilsson in November in May, a significant effort was made by E-Press to manually enter the metadata for all Ph.D. theses to the examination date. The candidate then enters their metadata just prior to "Spikning" and E-Press obtains

Zhao, Yuxiao

167

Die Soldering in Aluminium Die Casting.  

National Technical Information Service (NTIS)

Two types of tests, dipping tests and dip-coating tests were carried out on small steel cylinders using pure aluminum and 380 alloy to investigate the mechanism of die soldering during aluminum die casting. Optical and scanning electron microscopy were us...

Q. Han, E. A. Kenik, S. Viswanathan

2000-01-01

168

Die Soldering in Aluminium Die Casting  

Microsoft Academic Search

Two types of tests, dipping tests and dip-coating tests were carried out on small steel cylinders using pure aluminum and 380 alloy to investigate the mechanism of die soldering during aluminum die casting. Optical and scanning electron microscopy were used to study the morphology and composition of the phases formed during soldering. A soldering mechanism is postulated based on experimental

Q. Han; E. A. Kenik; S. Viswanathan

2000-01-01

169

Die Wirkung von Bradykinin auf die zerebrale Mikrozirkulation.  

E-print Network

??In der vorliegenden Arbeit wurde die Wirkung von Bradykinin auf die zerebrale Mikrozirkulation untersucht. Von besonderer Bedeutung war hierbei die Beurteilung der Interaktion von Leukozyten… (more)

Waldner, Maximilian

2007-01-01

170

Die aszendierende Varikophlebitis  

Microsoft Academic Search

Zusammenfassung   Die Varikophlebitis ist die wichtigste akute Komplikation einer Stammvarikosis vom V.-saphena-magna- und\\/oder -parva-Typ.\\u000a Durch Aszension kann es zu einer Migration des Thrombus in das tiefe Venensystem über die Mündungen der Stammvenen in Leiste\\u000a und Kniekehle oder über insuffiziente Vv. perforantes kommen, wodurch die Komplikation einer Lungenembolie droht. Ausdehnung\\u000a und Progression einer aszendierenden Varikophlebitis lassen sich mit der Duplexsonographie und\\/oder

F. Verrel; B. Steckmeier; A. Parzhuber; F. A. Spengel; G. Rauh; C. B. Reininger

1999-01-01

171

Es lebe die Unverfrorenheit !\\  

Microsoft Academic Search

uber seine physikalische Interpr etation einer harmlos aus- sehenden, von ihn selbst zuvor aufgestellten Formel, die das spektrale Verhalten der sogenannten Warmestrahlung beschreibt. Maßgeblich durch das Eingreifen Albert Einsteins entwickelte sich daraus im folgenden Vierteljahrhundert eine fundamentale Krise der Physik, die dann in einer wissenschaftlichen Revolution großten Ausmaßes mundete: der Quantentheorie. Die Quantentheorie entwickelte sich von Anfang an diametral gegen

Domenico Giulini

172

The Press Freedom Database  

NSDL National Science Digital Library

Developed by the Committee to Protect Journalists (CPJ), The Press Freedom Database contains case histories of documented press freedom violations against journalists and media organizations worldwide as well as annual CPJ reports on the violations in specific countries and regions. The case histories document the circumstances in which journalists have been attacked, killed, expelled, censored, harassed, threatened, and/or imprisoned. The database is searchable by journalist name, news organization, type of organization, date, country, or region. Currently, the database, which is updated weekly, contains over 2,000 reports of press freedom violations, spanning from 1993 to the present.

173

Stamping failure analysis of advanced high strength steel sheet based on non-uniform local deformation through thickness  

NASA Astrophysics Data System (ADS)

The phenomenon "Shear fracture" is often observed in the stretch-bending process of stamping over small radius with advanced high strength steels (AHSS). It occurs parallel to and near the die radius in the stretch-bending test. Since traditional Forming Limit Diagram (FLD) is unable to describe this type of failure, experimental and simulation works were constructed in this paper to investigate and predict the shear fracture. Fracture experiments were carried out through a stretch-bending test system, and failure mode was observed. There is no obviously thinning at the shear fracture surface. Further research shows that the initial crack of shear fracture occurs at the outer layer of specimen at die radius position. Finite element (FE) models were built for stretch-bending test with 3D element. The non-uniform local deformation through thickness corresponding to bending position was obtained and analyzed. Cockcroft & Latham fracture criterion is used. The outer layer of specimen at bending position reaches the critical fracture state firstly, which agrees well with experiments. Different fracture criteria are also compared and selected to determine this fracture. Results show that based on the non-uniform local deformation, the initial crack location of shear fracture at small radius can be effectively predicted by fracture criteria related to the maximum principle stress.

Huang, Sheng; Zhao, Yixi; He, Chunfeng

2013-12-01

174

Numerical Prediction of Microstructure and Mechanical Properties During the Hot Stamping Process  

NASA Astrophysics Data System (ADS)

Numerical simulation and prediction of microstructures and mechanical properties of products is very important in product development of hot stamping parts. With this method we can easily design changes of hot stamping products' properties prior to the manufacturing stage and this offers noticeable time and cost savings. In the present work, the hot stamping process of a U-channel with 22MnB5 boron steels is simulated by using a coupled thermo-mechanical FEM program. Then with the temperature evolution results obtained from the simulation, a model is applied to predict the microstructure evolution during the hot stamping process and mechanical properties of this U-channel. The model consists of a phase transformation model and a mechanical properties prediction model. The phase transformation model which is proposed by Li et al is used to predict the austenite decomposition into ferrite, pearlite, and bainite during the cooling process. The diffusionless austenite-martensite transformation is modeled using the Koistinen and Marburger relation. The mechanical properties prediction model is applied to predict the products' hardness distribution. The numerical simulation is evaluated by comparing simulation results with the U-channel hot stamping experiment. The numerically obtained temperature history is basically in agreement with corresponding experimental observation. The evaluation indicates the feasibility of this set of methods to be used to guide the optimization of hot stamping process parameters and the design of hot stamping tools.

Kan, Dongbin; Liu, Lizhong; Hu, Ping; Ma, Ning; Shen, Guozhe; Han, Xiaoqiang; Ying, Liang

2011-08-01

175

Exponential model of strength-hardness mechanical properties analysis and numerical prediction in hot stamping  

NASA Astrophysics Data System (ADS)

Hot stamping is an advanced sheet forming technology integrating traditional forming and quenching technique for high strength and hardness simultaneously in the process. This paper has investigated the mechanical properties evolution history of hot stamping boron steel 22MnB5 with different cooling rates under non-isothermal quenching process. It has been conducted for analyzing the effect of divided stage cooling influences on the mechanical properties of 22MnB5 by the martensite transformation temperature point Ms. A series of tests were conducted using the divided stage cooling tool in order to acquire the cooling rates hardness, mechanical strength of different quenching process. The hardness-cooling rate exponential model and mechanical strength-hardness-cooling rate exponential model were established by using the dimensional analysis method and the inverse method based on numerical analysis software MATLAB. The model has been applied to the prediction simulation in the self-developed software KMAS_HF to validate the hardness and strength prediction in hot stamping. The typical U-shape hot stamping experiment was investigated for the numerical simulation of non-isothermal quenching process. The evaluation result shows that the model has a good reliability and applicability for predicting the hot stamping mechanical properties, which can be used to guide the optimization of hot stamping process and the design of hot stamping tools.

Dai, M. H.; Ying, L.; Fan, Z. S.; Hu, P.; Shi, D. Y.; He, B.

2013-05-01

176

Extracting Hot spots of Topics from Time Stamped Documents  

PubMed Central

Identifying time periods with a burst of activities related to a topic has been an important problem in analyzing time-stamped documents. In this paper, we propose an approach to extract a hot spot of a given topic in a time-stamped document set. Topics can be basic, containing a simple list of keywords, or complex. Logical relationships such as and, or, and not are used to build complex topics from basic topics. A concept of presence measure of a topic based on fuzzy set theory is introduced to compute the amount of information related to the topic in the document set. Each interval in the time period of the document set is associated with a numeric value which we call the discrepancy score. A high discrepancy score indicates that the documents in the time interval are more focused on the topic than those outside of the time interval. A hot spot of a given topic is defined as a time interval with the highest discrepancy score. We first describe a naive implementation for extracting hot spots. We then construct an algorithm called EHE (Efficient Hot Spot Extraction) using several efficient strategies to improve performance. We also introduce the notion of a topic DAG to facilitate an efficient computation of presence measures of complex topics. The proposed approach is illustrated by several experiments on a subset of the TDT-Pilot Corpus and DBLP conference data set. The experiments show that the proposed EHE algorithm significantly outperforms the naive one, and the extracted hot spots of given topics are meaningful. PMID:21765568

Chen, Wei; Chundi, Parvathi

2011-01-01

177

1 The birth of the MIT Press The MIT Press  

E-print Network

1 The birth of the MIT Press The MIT Press celebrating 50 years #12;3 The birth of the MIT Press that the I nstitute dedicated its publishing unit to a broader mission and gave it the name "The MIT Press colophon, the no w famous emblem designed by Muriel Cooper in 1964. Our imprint helps to give MIT's name

Polz, Martin

178

Press Release Corporate Communications  

E-print Network

Page: 1/2 Press Release Corporate Communications Karolinenplatz 5 D-64289 Darmstadt Germany Your to establish a reputation for itself in scientific and engineering fields. One of the hindrances involved

Reggelin, Michael

179

Four Theories of the Press.  

ERIC Educational Resources Information Center

A systematic understanding of the press requires an understanding of the social and political structures within which the press operates. This book discusses four theories that have determined the kind of press the Western world has had: authoritarian, libertarian, socially responsible, and Soviet communist. Each chapter discusses press

Siebert, Fred S.; And Others

180

Press laws in North Korea  

Microsoft Academic Search

The press in the Democratic People's Republic of Korea (North Korea) is closely tied to its communist sociopolitical structures. The North Korean press finds its modus operandi in the ‘Soviet Communist’ theory for its relationship with its government. This study examines the press laws and regulations in North Korea, pursuing three questions: (1) What is the status of the press

Kyu Ho Youm

1991-01-01

181

25 CFR 301.1 - Eligibility for use of Government stamp.  

Code of Federal Regulations, 2013 CFR

...Section 301.1 Indians INDIAN ARTS AND CRAFTS BOARD, DEPARTMENT OF THE INTERIOR NAVAJO, PUEBLO, AND HOPI SILVER AND TURQUOISE PRODUCTS; STANDARDS § 301.1 Eligibility for use of Government stamp. Subject to the detailed requirements that...

2013-04-01

182

25 CFR 301.1 - Eligibility for use of Government stamp.  

Code of Federal Regulations, 2010 CFR

...Section 301.1 Indians INDIAN ARTS AND CRAFTS BOARD, DEPARTMENT OF THE INTERIOR NAVAJO, PUEBLO, AND HOPI SILVER AND TURQUOISE PRODUCTS; STANDARDS § 301.1 Eligibility for use of Government stamp. Subject to the detailed requirements that...

2010-04-01

183

25 CFR 301.1 - Eligibility for use of Government stamp.  

Code of Federal Regulations, 2012 CFR

...Section 301.1 Indians INDIAN ARTS AND CRAFTS BOARD, DEPARTMENT OF THE INTERIOR NAVAJO, PUEBLO, AND HOPI SILVER AND TURQUOISE PRODUCTS; STANDARDS § 301.1 Eligibility for use of Government stamp. Subject to the detailed requirements that...

2012-04-01

184

25 CFR 301.1 - Eligibility for use of Government stamp.  

Code of Federal Regulations, 2011 CFR

...Section 301.1 Indians INDIAN ARTS AND CRAFTS BOARD, DEPARTMENT OF THE INTERIOR NAVAJO, PUEBLO, AND HOPI SILVER AND TURQUOISE PRODUCTS; STANDARDS § 301.1 Eligibility for use of Government stamp. Subject to the detailed requirements that...

2011-04-01

185

Liquid-Metal-Induced Embrittlement of Zn-Coated Hot Stamping Steel  

NASA Astrophysics Data System (ADS)

Liquid-metal-induced embrittlement (LMIE) of galvanized hot stamping steel occurs due to the simultaneous application of stress and the presence of a liquid Zn surface layer during the hot stamping process. The mechanism specific to the liquid metal induced embrittlement occurring during hot stamping was investigated in detail. It was found that when a tensile stress was applied, liquid Zn could penetrate along grain boundaries in the steel matrix at temperatures above the Liquid + ?-Fe (Zn) ? ?1 peritectic transformation temperature of 1055 K (782 °C). The results show that an increase of the annealing time prior to hot stamping is an effective way to prevent LMIE by the elimination of the liquid phase.

Lee, Chang Wook; Fan, Dong Wei; Sohn, Il Ryoung; Lee, Seok-Jae; De Cooman, Bruno C.

2012-12-01

186

Enhanced Mechanical Properties of a Hot-Stamped Advanced High-Strength Steel via Tempering Treatment  

NASA Astrophysics Data System (ADS)

The hot stamping process has an extensive range of applications due to its advantages over the traditionally used stamping techniques developed in the past. To enhance the mechanical properties of the indirectly hot-stamped parts, the quenching and partitioning (Q&P) process has been recently applied on boron-alloyed steel. In the current research, it was observed that the tempering treatment on the directly hot-stamped boron steel resulted in better mechanical properties and higher formability index compared with the reported results using the Q&P process. The nano-carbide formation and the dislocation annihilation during the tempering treatment were suggested as the evident reasons for the occurrence of the mentioned robust properties. The ease of the practical implementation of the tempering route together with the markedly enhanced mechanical properties of the tempered parts make the suggested method privileged. Additionally, the variations in the yield strength before and after tempering were quantitatively evaluated.

Naderi, M.; Abbasi, M.; Saeed-Akbari, A.

2013-04-01

187

42 CFR 71.3 - Designation of yellow fever vaccination centers; Validation stamps.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 false Designation of yellow fever vaccination centers; Validation...Provisions § 71.3 Designation of yellow fever vaccination centers; Validation stamps. (a) Designation of yellow fever vaccination centers....

2012-10-01

188

42 CFR 71.3 - Designation of yellow fever vaccination centers; Validation stamps.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 false Designation of yellow fever vaccination centers; Validation...Provisions § 71.3 Designation of yellow fever vaccination centers; Validation stamps. (a) Designation of yellow fever vaccination centers....

2011-10-01

189

42 CFR 71.3 - Designation of yellow fever vaccination centers; Validation stamps.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 false Designation of yellow fever vaccination centers; Validation...Provisions § 71.3 Designation of yellow fever vaccination centers; Validation stamps. (a) Designation of yellow fever vaccination centers....

2010-10-01

190

42 CFR 71.3 - Designation of yellow fever vaccination centers; Validation stamps.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 false Designation of yellow fever vaccination centers; Validation...Provisions § 71.3 Designation of yellow fever vaccination centers; Validation stamps. (a) Designation of yellow fever vaccination centers....

2013-10-01

191

Direct metal nano-imprinting using an embossed solid electrolyte stamp  

NASA Astrophysics Data System (ADS)

In this paper, we report direct patterning of metal nanostructures using an embossed solid electrochemical stamp. Microforming of solid superionic stamps using Si templates—analogous to polymer patterning in nano-imprint lithography—is explored. Silver sulfide (Ag2S)—a superionic conductor with excellent microforming properties—is investigated as a candidate material. Important parameters of the superionic stamp, including mechanical behavior, material flow during forming and feature recovery after embossing, are studied. Excellent feature transferability during embossing as well as etching is observed. To illustrate the capability of this approach silver nano-antennas with gaps < 10 nm were successfully fabricated. The possibility for large area patterning with stamp diameters > 6 mm is also demonstrated. Embossing-based metal patterning allows fabrication beyond two-dimensional nanofabrication and several patterning schemes are reported.

Kumar, A.; Hsu, K. H.; Jacobs, K. E.; Ferreira, P. M.; Fang, N. X.

2011-04-01

192

26 CFR 301.7209-1 - Unauthorized use or sale of stamps.  

Code of Federal Regulations, 2010 CFR

...DEPARTMENT OF THE TREASURY (CONTINUED) PROCEDURE AND ADMINISTRATION PROCEDURE AND ADMINISTRATION Crimes, Other Offenses, and Forfeitures Crimes § 301.7209-1 Unauthorized use or sale of stamps. (a) Any person who buys,...

2010-04-01

193

27 CFR 70.332 - Unauthorized use or sale of stamps.  

Code of Federal Regulations, 2010 CFR

...CONTINUED) PROCEDURES AND PRACTICES PROCEDURE AND ADMINISTRATION Collection of Excise and Special (Occupational) Tax Crimes, Other Offenses and Forfeitures § 70.332 Unauthorized use or sale of stamps. Any person who buys,...

2010-04-01

194

26 CFR 301.7209-1 - Unauthorized use or sale of stamps.  

Code of Federal Regulations, 2011 CFR

...DEPARTMENT OF THE TREASURY (CONTINUED) PROCEDURE AND ADMINISTRATION PROCEDURE AND ADMINISTRATION Crimes, Other Offenses, and Forfeitures Crimes § 301.7209-1 Unauthorized use or sale of stamps. (a) Any person who buys,...

2011-04-01

195

41 CFR 101-25.103 - Promotional materials, trading stamps, or bonus goods.  

Code of Federal Regulations, 2011 CFR

...materials, trading stamps, or bonus goods. 101-25.103 Section 101-25.103 Public Contracts and Property Management ...PROPERTY MANAGEMENT REGULATIONS SUPPLY AND PROCUREMENT 25-GENERAL 25.1-General Policies §...

2011-07-01

196

41 CFR 101-25.103-3 - Trading stamps or bonus goods received from contractors.  

Code of Federal Regulations, 2010 CFR

...stamps or bonus goods received from contractors. 101-25.103-3 Section 101-25.103-3 Public Contracts and Property Management...PROPERTY MANAGEMENT REGULATIONS SUPPLY AND PROCUREMENT 25-GENERAL 25.1-General Policies §...

2010-07-01

197

41 CFR 101-25.103 - Promotional materials, trading stamps, or bonus goods.  

Code of Federal Regulations, 2012 CFR

...materials, trading stamps, or bonus goods. 101-25.103 Section 101-25.103 Public Contracts and Property Management ...PROPERTY MANAGEMENT REGULATIONS SUPPLY AND PROCUREMENT 25-GENERAL 25.1-General Policies §...

2012-07-01

198

41 CFR 109-25.103 - Promotional materials, trading stamps, or bonus goods.  

Code of Federal Regulations, 2011 CFR

...materials, trading stamps, or bonus goods. 109-25.103 Section 109-25.103 Public Contracts and Property Management ...PROPERTY MANAGEMENT REGULATIONS SUPPLY AND PROCUREMENT 25-GENERAL 25.1-General Policies §...

2011-01-01

199

41 CFR 101-25.103-3 - Trading stamps or bonus goods received from contractors.  

Code of Federal Regulations, 2012 CFR

...stamps or bonus goods received from contractors. 101-25.103-3 Section 101-25.103-3 Public Contracts and Property Management...PROPERTY MANAGEMENT REGULATIONS SUPPLY AND PROCUREMENT 25-GENERAL 25.1-General Policies §...

2012-07-01

200

41 CFR 101-25.103-3 - Trading stamps or bonus goods received from contractors.  

Code of Federal Regulations, 2011 CFR

...stamps or bonus goods received from contractors. 101-25.103-3 Section 101-25.103-3 Public Contracts and Property Management...PROPERTY MANAGEMENT REGULATIONS SUPPLY AND PROCUREMENT 25-GENERAL 25.1-General Policies §...

2011-07-01

201

26 CFR 1.451-4 - Accounting for redemption of trading stamps and coupons.  

Code of Federal Regulations, 2011 CFR

...Gross Income Included § 1.451-4 Accounting for redemption of trading stamps and coupons...beneficiaries, other proprietors, and for credit purposes. (2) Average cost of redeeming...beneficiaries, other proprietors, and for credit purposes. (e) Information to be...

2011-04-01

202

26 CFR 1.451-4 - Accounting for redemption of trading stamps and coupons.  

Code of Federal Regulations, 2010 CFR

...Gross Income Included § 1.451-4 Accounting for redemption of trading stamps and coupons...beneficiaries, other proprietors, and for credit purposes. (2) Average cost of redeeming...beneficiaries, other proprietors, and for credit purposes. (e) Information to be...

2010-04-01

203

26 CFR 1.451-4 - Accounting for redemption of trading stamps and coupons.  

Code of Federal Regulations, 2012 CFR

...Gross Income Included § 1.451-4 Accounting for redemption of trading stamps and coupons...beneficiaries, other proprietors, and for credit purposes. (2) Average cost of redeeming...beneficiaries, other proprietors, and for credit purposes. (e) Information to be...

2012-04-01

204

26 CFR 1.451-4 - Accounting for redemption of trading stamps and coupons.  

...Gross Income Included § 1.451-4 Accounting for redemption of trading stamps and coupons...beneficiaries, other proprietors, and for credit purposes. (2) Average cost of redeeming...beneficiaries, other proprietors, and for credit purposes. (e) Information to be...

2014-04-01

205

26 CFR 1.451-4 - Accounting for redemption of trading stamps and coupons.  

Code of Federal Regulations, 2013 CFR

...Gross Income Included § 1.451-4 Accounting for redemption of trading stamps and coupons...beneficiaries, other proprietors, and for credit purposes. (2) Average cost of redeeming...beneficiaries, other proprietors, and for credit purposes. (e) Information to be...

2013-04-01

206

The Evolution of Sheet Metal Forming Simulation in Stamping Industry  

Microsoft Academic Search

The field of sheet metal forming has experienced numerous innovative changes over the past few decades, such as new forming techniques and application of computer technologies. New forming techniques include application of tailor-welded blank, high strength steel forming, hydroforming, press automation and so on. One of the computer technologies is the implementation of Computer Aided Engineering (CAE), such as sheet

Arthur Tang; Wing Lee; Jeanne He

207

Reinraumtechnik für die Medizintechnik  

NASA Astrophysics Data System (ADS)

Die Reinraumtechnik ist heute ein unverzichtbarer Bestandteil bei der Fertigung von Produkten der Life Sciences, den Bereichen Pharma, Lebensmittel, Kosmetik und Medizintechnik. In Anbetracht der langen Historie der Medizintechnik ist sie jedoch eine sehr junge Disziplin. Die Bedeutung von Keimen und die richtige Einschätzung ihrer Größe wurden zwar sehr früh bereits durch Paracelsus erkannt, jedoch wurden daraus noch keine speziellen oder kontinuierlich umgesetzten Hygienevorschriften abgeleitet. Die erste bekannte technische Umsetzung von Hygieneempfehlungen geht auf den Franzosen François Nicolas Appert zurück, der eine aseptische Abfüllmethode für Lebensmittel entwickelte und diese 1810 veröffentlichte [1]. Die erste dokumentierte medizinische Umsetzung stellten Hygienevorschriften für Ärzte dar, die Ignaz Philipp Semmelweis nach 1847 in der Wiener Klinik für Geburtshilfe einführte [2].

Petek, Max; Jungbluth, Martin; Krampe, Erhard

208

Die singulation method  

DOEpatents

A method is disclosed for singulating die from a semiconductor substrate (e.g. a semiconductor-on-insulator substrate or a bulk silicon substrate) containing an oxide layer (e.g. silicon dioxide or a silicate glass) and one or more semiconductor layers (e.g. monocrystalline or polycrystalline silicon) located above the oxide layer. The method etches trenches through the substrate and through each semiconductor layer about the die being singulated, with the trenches being offset from each other around at least a part of the die so that the oxide layer between the trenches holds the substrate and die together. The trenches can be anisotropically etched using a Deep Reactive Ion Etching (DRIE) process. After the trenches are etched, the oxide layer between the trenches can be etched away with an HF etchant to singulate the die. A release fixture can be located near one side of the substrate to receive the singulated die.

Swiler, Thomas P.; Garcia, Ernest J.; Francis, Kathryn M.

2013-06-11

209

Extrusion die and method  

DOEpatents

A method and die apparatus for manufacturing a honeycomb body of rhombic cell cross-section by extrusion through an extrusion die of triangular cell discharge slot configuration, the die incorporating feedholes at selected slot intersections only, such that slot segments communicating directly with the feedholes discharge web material and slot segments not so connected do not discharge web material, whereby a rhombic cell cross-section in the extruded body is provided.

Lipp, G. Daniel (Painted Post, NY)

1994-04-26

210

The Ambiguous Dying Syndrome  

ERIC Educational Resources Information Center

More than one-half of the 2.4 million deaths that will occur in the United States in 2004 will be immediately preceded by a time in which the likelihood of dying can best be described as "ambiguous." Many people die without ever being considered "dying" or "at the end of life." These people may miss out on the opportunity to close important…

Bern-Klug, Mercedes

2004-01-01

211

Celebrating a Nation’s heritage on music stamps: Constructing an international community  

Microsoft Academic Search

Stamps convey important visible messages about a state’s heritage and worldview. They are images or official visible products\\u000a seen by those living within the state’s borders and those beyond. They also can be considered as “imagined communities,” as\\u000a like festivals, holidays, or WWW pages, they represent attachments to and images of place. We investigate stamps as elements\\u000a of visual culture

Kate Covington; Stanley D. Brunn

2006-01-01

212

The national evaluation of the food stamp employment and training program  

Microsoft Academic Search

This article reports the results of the national evaluation of the Food Stamp Employment and Training (E&T) Program, based on an experimental study involving over 13,000 program participants in 53 separate local food stamp agencies. The story told by these findings begins with the types of individuals who participated in the E&T Program in FY 1988. Nearly 70 percent did

Michael J. Puma; Nancy R. Burstein

1994-01-01

213

Micro-patterned cell-sheets fabricated with stamping-force-controlled micro-contact printing.  

PubMed

Cell-sheet-engineering based regenerative medicine is successfully applied to clinical studies, though cell sheets contain uniformly distributed cells. For the further application to complex tissues/organs, cell sheets with a multi-cellular pattern were highly demanded. Micro-contact printing is a quite useful technique for patterning proteins contained in extracellular matrix (ECM). Because ECM is a kind of cellular adherent molecules, ECM-patterned cell culture surface is capable of aligning cells on the pattern of ECM. However, a manual printing is difficult, because a stamp made from polydimethylsiloxane (PDMS) is easily deformed, and a printed pattern is also crushed. This study focused on the deformability of PDMS stamp and discussed an appropriate stamping force in micro-contact printing. Considering in availability in a medical or biological laboratory, a method for assessing the stamp deformability was developed by using stiffness measurement with a general microscope. An automated stamping system composed of a load cell and an automated actuator was prepared and allowed to improve the quality of stamped pattern by controlling an appropriate stamping force of 0.1 N. Using the system and the control of appropriate stamping force, the pattern of 8-mm-diameter 80-?m-stripe fibronectin was fabricated on the surface of temperature-responsive cell culture dish. After cell-seeding and cell culture, a co-culture system with the micro-pattern of both fibroblasts and endothelial cells was completed. Furthermore, by reducing temperature to 20 °C, the co-cultured cell sheet with the micro-pattern was successfully harvested. As a result, the method would not only provide a high-quality ECM pattern but also a breakthrough technique to fabricate multi-cellular-patterned cell sheets for the next generation of regenerative medicine and tissue engineering. PMID:25239040

Tanaka, Nobuyuki; Ota, Hiroki; Fukumori, Kazuhiro; Miyake, Jun; Yamato, Masayuki; Okano, Teruo

2014-12-01

214

A novel solution-stamping process for preparation of a highly conductive aluminum thin film.  

PubMed

A novel solution-stamping process for the preparation of a highly conductive aluminum thin film on both rigid and flexible substrates is proposed. The superior electrical properties of Al thin films fabricated by the solution-stamping process compared to silver and gold films fabricated from colloidal nanoparticles are experimentally demonstrated, and their applications in electronic circuits on rigid and flexible substrates and to organic light-emitting diodes (OLEDs) are investigated. PMID:22052580

Lee, Hye Moon; Choi, Si-Young; Kim, Kyung Tae; Yun, Jung-Yeul; Jung, Dae Soo; Park, Seung Bin; Park, Jongwook

2011-12-01

215

Sputtered protective coatings for die casting dies  

NASA Technical Reports Server (NTRS)

Three experimental research designs investigating candidate materials and processes involved in protective die surface coating procedures by sputter deposition, using ion beam technologies, are discussed. Various pre-test results show that none of the coatings remained completely intact for 15,000 test cycles. The longest lifetime was observed for coatings such as tungsten, platinum, and molybdenum which reduced thermal fatigue, but exhibited oxidation and suppressed crack initiation only as long as the coating did not fracture. Final test results confirmed earlier findings and coatings with Pt and W proved to be the candidate materials to be used on a die surface to increase die life. In the W-coated specimens, which remained intact on the surface after thermal fatigue testing, no oxidation was found under the coating, although a few cracks formed on the surface where the coating broke down. Further research is planned.

Mirtich, M. J.; Nieh, C.-Y.; Wallace, J. F.

1981-01-01

216

The Angry Dying Patient  

PubMed Central

Over 25 years ago, Kubler-Ross identified anger as a predictable part of the dying process. When the dying patient becomes angry in the clinical setting, all types of communication become strained. Physicians can help the angry dying patient through this difficult time by using 10 rules of engagement. When physicians engage and empathize with these patients, they improve the patient's response to pain and they reduce patient suffering. When physicians educate patients on their normal responses to dying and enlist them in the process of family reconciliation, they can impact the end-of-life experience in a positive way. PMID:15014699

Houston, Robert E.

1999-01-01

217

Fabrication of Polymer Micropyramid/Nanolens Combined Structures Using Microstructured Nanodimpled Aluminum Stamp  

NASA Astrophysics Data System (ADS)

In this study, we present an efficient and low-cost fabrication technique of polymer micropyramid/nanolens combined structures (MPNL-CS). The present fabrication technique is based on hot embossing of polymer substrates using a microstructured nanodimpled aluminum (MNA) stamp. The MNA stamp for the replication of polymer MPNL-CS was realized by combining three fabrication steps. (1) A nickel stamp with micropyramid array was manufactured by electroforming onto an anisotropically wet-etched silicon substrate. (2) A reverse micropyramid cavity array was transcribed on an electropolished aluminum substrate by microindentation with the nickel stamp. (3) The MNA stamp was finally realized by forming nanodimple arrays onto the reverse micropyramid array on the aluminum substrate through an electrochemical oxidation (anodization) process. In the final step, we have optimized the electrochemical oxidation process to realize nanodimple arrays at the sharp edge reverse micropyramid without defects. The MPNL-CS were successfully replicated on polymer substrates via a hot embossing process with the fabricated MNA stamp through investigating the effect of embossing pressure on the transcription quality of MPNL-CS. The present fabrication technique can be widely applied to the realization of various types of three-dimensional micro/nano combined structures.

Cha, Kyoung Je; Lee, Bong-Kee; Kim, Dong Sung

2011-06-01

218

Surface modification of elastomeric stamps for microcontact printing of polar inks.  

PubMed

Chemical modification of the surface of a stamp used for microcontact printing (microCP) is interesting for controling the surface properties, such as the hydrophilicity. To print polar inks, plasma polymerization of allylamine (PPAA) was employed to render the surface of poly(dimethylsiloxane) (PDMS), polyolefin plastomers (POP), and Kraton elatomeric stamps hydrophilic for long periods of time. A thin PPAA film of about 5 nm was deposited on the stamps, which increased the hydrophilicity, and which remained stable for at least several months. These surface-modified stamps were used to transfer polar inks by microCP. The employed microCP schemes are as follows: (a) a second generation of dendritic ink having eight dialkyl sulfide end groups to fabricate patterns on gold substrates by positive microCP, (b) fluorescent guest molecules on beta-cyclodextrin (beta-CD) printboards on glass employing host-guest recognition, and (c) Lucifer Yellow ethylenediamine resulting in covalent patterning on an aldehyde-terminated glass surface. All experiments resulted in an excellent performance of all three PPAA-coated stamp materials to transfer the polar inks from the stamp surface to gold and glass substrates by microCP, even from aqueous solutions. PMID:17480107

Sadhu, Veera Bhadraiah; Perl, Andras; Péter, Maria; Rozkiewicz, Dorota I; Engbers, Gerard; Ravoo, Bart Jan; Reinhoudt, David N; Huskens, Jurriaan

2007-06-01

219

A Fully Automated and Robust Method to Incorporate Stamping Data in Crash, NVH and Durability Analysis  

NASA Astrophysics Data System (ADS)

Crash, NVH (Noise, Vibration, Harshness), and durability analysis are commonly deployed in structural CAE analysis for mechanical design of components especially in the automotive industry. Components manufactured by stamping constitute a major portion of the automotive structure. In CAE analysis they are modeled at a nominal state with uniform thickness and no residual stresses and strains. However, in reality the stamped components have non-uniformly distributed thickness and residual stresses and strains resulting from stamping. It is essential to consider the stamping information in CAE analysis to accurately model the behavior of the sheet metal structures under different loading conditions. Especially with the current emphasis on weight reduction by replacing conventional steels with aluminum and advanced high strength steels it is imperative to avoid over design. Considering this growing need in industry, a highly automated and robust method has been integrated within Altair Hyperworks® to initialize sheet metal components in CAE models with stamping data. This paper demonstrates this new feature and the influence of stamping data for a full car frontal crash analysis.

Palaniswamy, Hariharasudhan; Kanthadai, Narayan; Roy, Subir; Beauchesne, Erwan

2011-08-01

220

Die Soldering in Aluminium Die Casting  

SciTech Connect

Two types of tests, dipping tests and dip-coating tests were carried out on small steel cylinders using pure aluminum and 380 alloy to investigate the mechanism of die soldering during aluminum die casting. Optical and scanning electron microscopy were used to study the morphology and composition of the phases formed during soldering. A soldering mechanism is postulated based on experimental observations. A soldering critical temperature is postulated at which iron begins to react with aluminum to form an aluminum-rich liquid phase and solid intermetallic compounds. When the temperature at the die surface is higher than this critical temperature, the aluminum-rich phase is liquid and joins the die with the casting during the subsequent solidification. The paper discusses the mechanism of soldering for the case of pure aluminum and 380 alloy casting in a steel mold, the factors that promote soldering, and the strength of the bond formed when soldering occurs. conditions, an aluminum-rich soldering layer may also form over the intermetallic layer. Although a significant amount of research has been conducted on the nature of these intermetallics, little is known about the conditions under which soldering occurs.

Han, Q.; Kenik, E.A.; Viswanathan, S.

2000-03-15

221

Extrusion die and method  

DOEpatents

A method and die apparatus for manufacturing a honeycomb body of triangular cell cross-section and high cell density, the die having a combination of (i) feedholes feeding slot intersections and (ii) feedholes feeding slot segments not supplied from slot intersections, whereby a reduction in feedhole count is achieved while still retaining good extrusion efficiency and extrudate uniformity.

Lipp, G. Daniel (Painted Post, NY)

1994-05-03

222

Analysis of the mechanical properties and deformation behavior of nanostructured commercially pure Al processed by equal channel angular pressing (ECAP)  

Microsoft Academic Search

In the present paper commercially pure Al was processed by equal channel angular pressing (ECAP) up to 8 passes using route BC. For ECAP processing a proper die set was designed and constructed. Transmission electron microscope (TEM) and electron backscatter diffraction (EBSD) were used to evaluate the microstructure of the pressed materials. Mechanical properties and the deformation behavior of the

M. Reihanian; R. Ebrahimi; N. Tsuji; M. M. Moshksar

2008-01-01

223

UNIVERSITY of WASHINGTON PRESS  

E-print Network

Research Press37 ABOUT OUR CATALOG Our digital catalog is available through Edelweiss at http://edel.bz/browse/uwpress. Scan QR codes throughout the catalog with your smart phone to see video trailers about our titles. E e-books from Amazon.com and Google Play. TITLE INDEX American Encounters36 And the View from

Manchak, John

224

One press, divided nation  

Microsoft Academic Search

For more than a year, coverage of the century's most sensational murder trial was broadcast on domestic and international networks. Sports star OJ. Simpson stood accused of murdering his former wife Nicole Brown Simpson and her friend Ronald Goldman. On October 3rd the jury found Simpson not guilty.Press performance, in the verdict's aftermath, reminds many Americans of what the Kerner

Mercedes Lynn de Uriarte

1996-01-01

225

Public Relations Press Release  

E-print Network

, contrast and color vision, UV protection and visual quality in the twilight, at night or in difficultPublic Relations Department Page 1/2 Press Release ZEISS Vision Science Lab Opens at Tübingen Uni for better vision Tübingen, 12/5/2013 More than four billion people all over the world are reliant

Tübingen, Universität

226

Public Relations Press Release  

E-print Network

ordinary people to make their decisions without prejudice. And yet, in this experiment, they consider the professional career prospects of obese people. "The actual proportion of overweight men in prestigious careers- vantaging factor. Myriam Hönig Director Michael Seifert Press Relations and Research Reporting Phone +49

Tübingen, Universität

227

Public Relations Press Release  

E-print Network

of Economics in 1991 and from the University of Wisconsin with a Master of Business Administration in 1989. She November. It also provides expert advice on specific economic problems. Its five members must have a veryPublic Relations Department Page 1/2 Press Release Tübingen Economics Professor Joins Council

Tübingen, Universität

228

Public Relations Press Release  

E-print Network

include the 1993 Robert Koch Prize, the German Research Foundation's 1991 Gottfried Wilhelm Leibniz Prize by Bayer CEO Dr. Marijn Dekkers in Berlin on March 6. Myriam H�nig Director Michael Seifert Press Relations and Research Reporting Phone +49 7071 29-76789 Fax +49 7071 29-5566 Michael.seifert@uni-tuebingen.de www

Tübingen, Universität

229

ARTICLE IN PRESS UNCORRECTEDPROOF  

E-print Network

ARTICLE IN PRESS UNCORRECTEDPROOF Please cite this article as: V. Guerra, R. de Abreu, Comment on Communicated by P.R. Holland Abstract In a recent article [M. Consoli, E. Costanzo, Phys. Lett. A 333 (2004 a growing number of articles questioning the standard interpretation of special rela- tivity is appearing

Guerra, Vasco

230

Tower Press Camera  

USGS Multimedia Gallery

"4x5" enclosure camera with Rangefinder and Wollensak Raptar lens serial #A18388, 62 mm, 1950s-60s. Manufactured by Busch Optical Manufacturing Company, Chicago, Illinois (also known as Busch Precision Camera Corporation). The company was famous for its versatile press cameras which featured an opti...

2009-07-22

231

THE STAMP TEST DELIVERS THE MESSAGE ON ERECTILE DYSFUNCTION FOLLOWING HIGH DOSE IMRT FOR PROSTATE CANCER  

PubMed Central

Objectives To evaluate erectile function following high dose radiotherapy for prostate cancer using the international index of erectile function (IIEF), expanded prostate cancer index composite (EPIC), and stamp test. Methods Men with favorable and intermediate risk prostate cancer were assigned to receive prostate intensity modulated radiotherapy (IMRT) vs. an erectile tissue-sparing IMRT technique on a phase III randomized prospective study. The stamp test, IIEF, and EPIC questionnaires were completed at baseline, 6 months, one year, and two years after IMRT. Sexual Health Inventory for Men (SHIM) scores were abstracted from IIEF questionnaires. A partner questionnaire, designated IIEF-P, modeled after the IIEF but from the perspective of the partner, was collected. Results Ninety four men enrolled on the trial who completed at least one questionnaire or one stamp test were analyzed. The median age of the patient population was 62.5 years. The median RT dose was 76 Gy (range: 74–80 Gy). At 6-months and one year after high-dose IMRT, a positive stamp result significantly correlated with median EPIC sexual summary, sexual function (EF), and bother subscale scores. Additionally, 6-months after IMRT the stamp test correlated with median IIEF, IIEF EF domain, and SHIM scores. Robust concordance for the IIEF and SHIM results was appreciated between responding patients: partner pairs. Conclusions Nocturnal tumescence indicated by a positive stamp test correlates well with established quality of life questionnaires after IMRT. The stamp test should strongly be considered as an objective measure of erectile function in future studies of ED in prostate cancer patients. PMID:22749428

Keller, Lanea M. M.; Buyyounouski, Mark K.; Sopka, Dennis; Ruth, Karen; Klayton, Tracy; Pollack, Alan; Watkins-Bruner, Deborah; Greenberg, Richard; Price, Robert; Horwitz, Eric M

2012-01-01

232

K2CO3 catalysis on the reactivity of top charged coke and stamp charged coke  

NASA Astrophysics Data System (ADS)

The catalysis of K2CO3 on the reactivity of top charged coke and stamp charged coke from Pansteel in China was studied. The coke reaction index of the stamp charged coke was 1%-2% higher than that of the top charged coke. Under the catalysis of K2CO3, the coke reaction index of both cokes approximately increased by 4%, 6%, 10% and 6% at 900, 1000, 1100 and 1200°C, respectively. The reactivity of the K-enriched stamp charged coke was 1%-2% higher than that of the K-enriched top charged coke below 1100°C. However, only negligible differences were found in the temperature zone between 1100 and 1200°C. Scanning electron microscopy images illustrated that pores in the top charged coke were smaller and equally distributed, while relatively more big pores exist non-homogenously in stamp charged coke. Due to the different processes in production, the stamp charged coke was more porous and most of the pores tended to be applanate. Cracks were observed in the microstructure of the stamp charged coke during the carbon solution reaction, implying the inferior quality of the stamp charged coke to the top charged coke at high temperature. Diffusion of K during the carbon solution reaction was studied by the energy dispersive spectrometry. It is found that K gradually spreads into the center of lumpy coke with the rising of temperature and is equally distributed on the edges of pores at 1200°C. Besides, oxidation reactions of functional groups become faster with the catalysis of K.content

Pang, Qing-hai; Zhang, Jian-liang; Qi, Cheng-lin; Ma, Chao; Kong, De-wen; Mao, Rui

2013-01-01

233

Die zwei Kulturen  

NASA Astrophysics Data System (ADS)

Oft werden zwei mögliche Entwicklungen des Webs diskutiert - das Web 2.0 und das Semantic Web. Wenn wir diese zwei Visionen für das zukünftige Web unter die Lupe nehmen, dann lässt sich feststellen, dass sich die Ideen in ihrem Kern und ihren Technologien gegenseitig ergänzen. Dementsprechend können und sollen beide Visionen von den Erfahrungen und Stärken der anderen profitieren. Wir glauben daran, dass zukünftige Webanwendungen den Web 2.0-Fokus auf Community und Benutzerfreundlichkeit beibehalten und, darüber hinaus, auch von Technologien des Semantic Web zur Vereinfachung der mashupähnlichen Datenintegration profitieren werden. Auf Basis eines Semantic Blog-Szenarios werden wir hier die Vorteile einer möglichen Kombination von Semantic Web und Web 2.0 illustrieren, die zeitnah realisiert werden kann. Wir werden auch auf technische Probleme eingehen, die bei der Erweiterung dieses Szenarios entstehen. Wir stellen dar, wie aktuelle Entwicklungen in der Semantic Web Forschung diese Probleme angehen können, und setzen zugleich auch Schwerpunkte für die zukünftige Forschung, die in diesem Zusammenhang relevant sind.

Ankolekar, Anupriya; Krötzsch, Markus; Tran, Than; Vrandecic, Denny

234

Queensland’s queer press  

Microsoft Academic Search

Extract: Since the 1970s, there has been a strong and active gay and lesbian press in the southern parts of Australia. This press emerged later in Queensland than in the southern states but today it reaches many queer Queenslanders and performs a vital and multifaceted role.¹ While this press provides essential representation and visibility for the gay, lesbian, bisexual, transgender,

Shirleene Robinson

2007-01-01

235

Die Dispositionsqualität einer Rettungsleitstelle  

Microsoft Academic Search

Zusammenfassung  \\u000a Qualitätsmanagement in der Leitstelle sollte neben quantitativen Parametern wie Zeitintervallen auch inhaltliche Fragestellungen\\u000a beleuchten. Bezogen auf den Notrufabfrage- und Dispositionsprozess wäre somit die Korrelation zwischen vermuteter und tatsächlicher\\u000a Notfalllage zu untersuchen. Hierzu ist eine Rückmeldung über Art und “Schwere” des Notfalls erforderlich, die von dem vor\\u000a Ort agierenden Rettungsdienstpersonal an die Leitstelle übermittelt werden muss.\\u000a \\u000a \\u000a \\u000a Im hessischen Main-Kinzig-Kreis wurde

W. Lenz; M. Luderer; G. Seitz; M. Lipp

2000-01-01

236

Über die Lumineszenz der Alkalivanadate  

Microsoft Academic Search

Zusammenfassung Die aus einer Alkalikarbonatlösung mit V2O5 ohne Zusatz von Aktivatoren präparierten Alkalimetavanadate zeigen mit Ausnahme des Lithiumvanadats unter Ultraviolettanregung eine gelbe bis grüne Lumineszenz. Die Lumineszenzausbeute steigt mit zunehmendem Atomgewicht des Alkali-Ions und erreicht beim CsVO3 die Helligkeit von gut präparierten Zinkcadmiumsulfiden. Emissions- und Absorptionsspektren, die Temperaturabhängigkeit der Quantenausbeute, die Temperaturabhängigkeit der Emissionsbanden, die Erregungsverteilung und das Verhalten unter

H. Gobrecht; G. Heinsohn

1957-01-01

237

When a Student Dies.  

ERIC Educational Resources Information Center

Discusses a pedagogy for teaching middle school students how to grieve when one of their classmates dies. Considers the steps of the grieving process, and dealing with different types of death: murder, suicide, accidents, and illness. (JPB)

Lovelace, James; Thompson, Jen

2000-01-01

238

Inner City Press  

NSDL National Science Digital Library

Based in the South Bronx, the Inner City Press has been publishing a newspaper focused on low-income neighborhoods nationwide since 1987. A few months ago, the organization went online with a weekly publication featuring original and engaging investigative and analytical pieces from a selection of beats, including the Federal Reserve, Community Reinvestment, Insurance Redlining, Wall Street, Environmental Justice, and Banks, among others. The most recent issue (August 30) includes concise reports on predatory lending, the economic crisis in Ecuador, press leaks and the Federal Reserve, and a round-up of bank news. The site also provides overviews and related resources for Community Reinvestment, the Inner City Public Interest Law Center, Environmental Justice, Insurance Redlining, and related topics.

239

Wulfenia und die Pendulationstheorie  

Microsoft Academic Search

Auf Grund eingebender ErSrterungen fiber das Vorkommen, die Bodenunterlage und Vergesellsehaftung der Wulfenia carinthiaca Jacq. kommt der Verfasser zu der zweifellos der Wahrheit sehr nahe stehenden Anschauung, ,dal~ Wu~fenia die Eiszeiten nieht in K~rnten fiberdauert hat, sondern erst spiiter mit pontischillyrisehen Pflanzen eingewandort ist. VermSge ihrer Bodenansprfiche konnte sie nur an sehr wenigen Orten festen Ful~ fassen. In Anlehnung an

T. F. Hanausek; Rudolf Scharfetter

1908-01-01

240

Design for die casting  

Microsoft Academic Search

The purpose of this research was to establish methods and a system for transforming finished (machined) part designs into shapes that are die castable. The major contribution from this work is a consistent and systematic method of analysing the shape of die castings. This research is necessary because computer-aided design\\/manufacturing\\/engineering (CAD\\/CAM\\/CAE) systems are only loosely coupled, making manufacturability analysis very

S. Y. LIOU; R. A. MILLER

1991-01-01

241

Consolidation of Al particles through forward extrusion-equal channel angular pressing (FE-ECAP)  

Microsoft Academic Search

In the present study, aluminum particles are consolidated successfully by forward extrusion-equal channel angular pressing, referred as FE-ECAP process, at 200 °C. In this method, two processes of forward extrusion (FE) and equal channel angular pressing (ECAP) occur subsequently in a single die. For comparison, the powders are also consolidated by conventional extrusion process, at the same conditions as FE-ECAP process.

M. H. Paydar; M. Reihanian; E. Bagherpour; M. Sharifzadeh; M. Zarinejad; T. A. Dean

2008-01-01

242

DualPhase HotPress Forming Alloy H. K. D. H. Bhadeshia a,b  

E-print Network

­8%. One variant of the process is warm form- ing [15], where the maximum temperature to which the steelDual­Phase Hot­Press Forming Alloy H. L. Yi a S. Ghosh a H. K. D. H. Bhadeshia a,b a­press forming steels are formed in a fully austenitic state followed by die­ quenching in order to generate

Cambridge, University of

243

Thermal stresses in aluminium alloy die casting dies  

Microsoft Academic Search

The aim of this research is to analyze the influence of Aluminium Alloy die casting parameters, die material, and die geometry on in-service tool life. An innovative immersion testing apparatus is developed, at which Aluminium Alloy die casting is simulated. It enables controlled thermal fatigue cycling. Special specimens with different edge geometry and specimens with maraging steel welds deposited by

Damjan Klob?ar; Janez Tušek

2008-01-01

244

Numerical simulation of temperature field, microstructure evolution and mechanical properties of HSS during hot stamping  

NASA Astrophysics Data System (ADS)

The hot stamping of boron steels is widely used to produce ultra high strength automobile components without any spring back. The ultra high strength of final products is attributed to the fully martensitic microstructure that is obtained through the simultaneous forming and quenching of the hot blanks after austenization. In the present study, a mathematical model incorporating both heat transfer and the transformation of austenite is presented. A FORTRAN program based on finite element technique has been developed which permits the temperature distribution and microstructure evolution of high strength steel during hot stamping process. Two empirical diffusion-dependent transformation models under isothermal conditions were employed respectively, and the prediction capability on mechanical properties of the models were compared with the hot stamping experiment of an automobile B-pillar part.

Shi, Dongyong; Ying, Liang; Hu, Ping; Liu, Wenquan; Shen, Guozhe

2013-12-01

245

Numerical simulation of temperature field, microstructure evolution and mechanical properties of HSS during hot stamping  

SciTech Connect

The hot stamping of boron steels is widely used to produce ultra high strength automobile components without any spring back. The ultra high strength of final products is attributed to the fully martensitic microstructure that is obtained through the simultaneous forming and quenching of the hot blanks after austenization. In the present study, a mathematical model incorporating both heat transfer and the transformation of austenite is presented. A FORTRAN program based on finite element technique has been developed which permits the temperature distribution and microstructure evolution of high strength steel during hot stamping process. Two empirical diffusion-dependent transformation models under isothermal conditions were employed respectively, and the prediction capability on mechanical properties of the models were compared with the hot stamping experiment of an automobile B-pillar part.

Shi, Dongyong; Liu, Wenquan [Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian, 116024, P.R. (China); Ying, Liang, E-mail: pinghu@dlut.edu.cn; Hu, Ping, E-mail: pinghu@dlut.edu.cn; Shen, Guozhe [Key Laboratory of Structural Analysis for Industrial Equipment, School of Automotive Engineering, Dalian University of Technology, Dalian, 116024, P.R. (China)

2013-12-16

246

Millimeter-scale contact printing of aqueous solutions using a stamp made out of paper and tape  

E-print Network

three-dimensional, microfluidic, paper-based analyt- ical devices (3D-mPADs) as ``stamps'' (eMillimeter-scale contact printing of aqueous solutions using a stamp made out of paper and tape This communication describes a simple method for printing aqueous solutions with millimeter-scale patterns

Prentiss, Mara

247

Perkin's and Caro's mauveine in Queen Victoria's lilac postage stamps: a chemical analysis.  

PubMed

Mauveine, a chemical icon, is no longer commercially available. If nowadays one wanted to have a sample of the original Perkin, or Caro, mauveine, and see its colour, where would one find it? The answer is on UK Victorian 6d postage stamps from 1867-1880. This was found from a comparison with historical samples of mauveine, from both William Perkin and a Heinrich Caro sample (here analysed for the first time). These have distinctly different compositions and this was used to identify the origin of mauveine in the postage stamps, with evidence found for mauveine made by both Perkin's and Caro's synthesis. PMID:24459078

Oliveira, Maria da Conceição; Dias, Ana; Douglas, Peter; de Melo, J Sérgio Seixas

2014-02-10

248

The restoration of obliterated stamped serial numbers by ultrasonically induced cavitation in water  

NASA Technical Reports Server (NTRS)

Seventeen out of 21 obliterated stamped serial numbers on test specimens of copper, brass, steel, and aluminum were successfully restored. Cavitation induced in water by a piezoelectric transducer was the mechanism used. Primarily, smeared metal was removed from the number grooves by the force of the cavitation, however, numbers were also restored at depths at or below the level of the stamped grooves. The feasibility of this technique as a low cost tool for crime laboratories has been clearly demonstrated. The technique is applicable to a variety of materials, and no previous surface or chemical treatments are necessary.

Young, S. G.

1973-01-01

249

The Effect of Temperature Condition on Material Deformation and Die Wear  

NASA Astrophysics Data System (ADS)

The characteristics of temperature change on die and billet are very complex during the deformation process because of the interaction between them and some unstable external factors. In this paper, the numerical simulation model for the crank shaft die forging was established by means of the rigid-plastic FEM method. The model was validated by optical non-contact 3D measurement—ATOS. Based on available research results, this paper explored the effect of temperature conditions on material deformation and die wear. Three parameters, press velocity and initial temperature of billet and die, were chosen to illustrate the effects. From the experimental results, the effect of process parameters on deformation ability of the material is simple, while the effect on die wear is relatively complicated. The press velocity plays an important role on die wear when the initial temperature of the billet has larger influence on material deformation. A conclusion can be drawn that when the initial temperature of the billet is 1100 °C, the initial temperature of the die is 250 °C, and the velocity is kept in the range of 200-300 mm/s, the optimum solution for deformation ability of the material and die wear can be obtained. It is possible for the conclusion to be extended further for the control of temperature condition to optimize die life and material deformation.

Zhi, Jia; Jie, Zhou; Jin-jin, Ji; Liang, Huang; Hai, Yang

2013-07-01

250

Magnesium die casting properties  

SciTech Connect

Numerous innovative applications of magnesium alloy die castings have recently been introduced by the automotive industry. This is the result of dedicated long-term development involving end users, die casters, and equipment and material suppliers. It is realized that superior product performance can only by obtained by fully exploiting the synergy of optimum design, processing route, and material selection. A particularly good example is provided by the rapid growth of magnesium die casting applications for safety parts, requiring high fracture toughness. In such applications, the favorable intrinsic properties of magnesium die casting alloys have been exploited to an extent which was formerly not believed possible. Introduction of new alloys such as AM50 has further expanded the range of properties attainable. Standard references on alloy properties do not reflect these developments, and there is a strong need for updated information. These data, reflecting recent advances in alloy chemistry and die casting technology, should be more current than those available in most sources of physical and mechanical properties.

NONE

1995-08-01

251

Aluminium Pneumoconiosis I. In Vitro Comparison of Stamped Aluminium Powders Containing Different Lubricating Agents and a Granular Aluminium Powder  

PubMed Central

The discrepancy in previous reports of the action of aluminium on the lung may be explained by differences between stamped and granular aluminium powders. A stamped powder of the variety causing pulmonary fibrosis showed a brisk reaction with water, but a granular powder was unreactive. This difference is primarily due to the granular particles being covered by inert aluminium oxide, the formation of which is partially prevented in the stamping process by stearine and mineral oil. The reactivity of the flake-like stamped particles is also dependent on their large surface area per unit volume. The appearance of aluminium pneumoconiosis in Britain is explained by the introduction of mineral oil into the stamping industry for, in contrast to stearine, mineral oil permits the powder to react with water. The lung damage is believed to be caused by a soluble form of aluminium. PMID:14072616

Corrin, B.

1963-01-01

252

Fluorescent and photo-oxidizing TimeSTAMP tags track protein fates in light and electron microscopy  

PubMed Central

Protein synthesis is highly regulated throughout nervous system development, plasticity, and regeneration. However, tracking the distributions of specific new protein species has not been possible in living neurons or at the ultrastructural level. Previously we created TimeSTAMP epitope tags, drug-controlled tags for immunohistochemical detection of specific new proteins synthesized at defined times. Here we extend TimeSTAMP to label new protein copies by fluorescence or photo-oxidation. Live microscopy of a fluorescent TimeSTAMP tag reveals that copies of the synaptic protein PSD95 are synthesized in response to local activation of growth factor and neurotransmitter receptors, and preferentially localize to stimulated synapses in rat neurons. Electron microscopy of a photo-oxidizing TimeSTAMP tag reveals new PSD95 at developing dendritic structures of immature neurons and at synapses in differentiated neurons. These results demonstrate the versatility of the TimeSTAMP approach for visualizing newly synthesized proteins in neurons. PMID:23103964

Butko, Margaret T.; Yang, Jin; Geng, Yang; Kim, Hyung Joon; Jeon, Noo Li; Shu, Xiaokun; Mackey, Mason R.; Ellisman, Mark H.; Tsien, Roger Y.; Lin, Michael Z.

2012-01-01

253

Filter Press Building  

E-print Network

" of the thousands of homes in the com munity, we were able to recommend a system of heat recovery refrigeration cycles that would provide space conditioning at a fraction of the cost of natural gas. The all-electric recommendation was accepted because... waste water treatment effluent had an energy capacity of heating a btlilding 100 times the size of the pro posed "r'ilter Press Building." And th.e economics were favorable because a simple refrigeration II-"'_.~? WATER AT 105?F WATER AT 95?F ,",J...

Bush, W. M.

254

The direct economic effects of a policy to provide government subsidized price discounts for the purchase of fruit and vegetable by food stamp recipients.  

E-print Network

food stamp recipients. Improving diet quality by eating according to the newly revised food pyramid for the purchase of fruit and vegetable by food stamp recipients. by Karen M. Jetter Assistant Research Economist price discounts on fresh fruit and vegetable to food stamp recipients. The suggestion for a price

California at Davis, University of

255

A study of PVD coatings and die materials for extended die-casting die life  

Microsoft Academic Search

There have been some applications of PVD coatings to extend die-casting die life, mainly by reducing molten metal corrosion and erosion to the die. However, die steel heat checking (or thermal cycling induced cracking) resistance is affected significantly by the PVD coatings. This paper presents the results of a systematic study involving three H series and two maraging hot work

Yucong Wang

1997-01-01

256

Nanoscale organic transistors that use sourcedrain electrodes supported by high resolution rubber stamps  

E-print Network

Nanoscale organic transistors that use sourceÃ?drain electrodes supported by high resolution rubber transistors with source/drain electrodes on the stamp. We use this approach to investigate charge transport through pentacene in transistor structures with channel lengths that span more than three decades: from

Rogers, John A.

257

Stamping of Thin-Walled Structural Components with Magnesium Alloy AZ31 Sheets  

Microsoft Academic Search

In the present study, the stamping process for manufacturing cell phone cases with magnesium alloy AZ31 sheets was studied using both the experimental approach and the finite element analysis. In order to determine the proper forming temperature and set up a fracture criterion, tensile tests and forming limit tests were first conducted to obtain the mechanical behaviors of AZ31 sheets

Fuh-Kuo Chen; Chih-Kun Chang

2005-01-01

258

1. WELDING SHALL BE PERFORMED IN ACCORDANCE WITH ASME SECTION IX. NO CODE STAMP REQUIRED.  

E-print Network

NOTES 1. WELDING SHALL BE PERFORMED IN ACCORDANCE WITH ASME SECTION IX. NO CODE STAMP REQUIRED. 2. ALL WELDS SHALL BE DYE PENETRANT INSPECTED. NO RADIOGRAPHY REQUIRED. 3. MATERIAL CERTIFICATIONS HOSE W/TUBING ENDS, 13.5 FACE-TO-FACE N/A 3 1 swagelok 1.0 pipe weld connector SS - 316L SWAGELOK PIPE

McDonald, Kirk

259

Welfare Reform and Older Immigrants: Food Stamp Program Participation and Food Insecurity  

ERIC Educational Resources Information Center

Purpose: The welfare reform bill of 1996 severely constrained noncitizens' eligibility for the Food Stamp Program (FSP). This study examined the effects of eligibility restrictions on older immigrants' FSP participation and food insecurity. We paid special attention to household composition and household eligibility as well as older immigrants'…

Nam, Yunju; Jung, Hyo Jin

2008-01-01

260

Failure Analysis of Warm Stamping of Magnesium Alloy Sheet Based on an Anisotropic Damage Model  

NASA Astrophysics Data System (ADS)

Based on the frame work of continuum damage mechanics, a research work of anisotropic damage evolution in warm stamping process of magnesium alloy sheets has been carried out by means of a combined experimental-numerical method. The aim was to predict formability of warm stamping of AZ31 Mg alloy sheets by taking the thermal and damage effects into account. In the presented work, a temperature-dependent anisotropic yield function suitable for cold rolling sheet metals together with an anisotropic damage model was implemented into the a VUMAT subroutine for ABAQUS/EXPLICIT. The evolution of internal damage in the form of void growth and coalescence in AZ31 Mg alloy sheet was observed by means of scanning electron microscopy (SEM). Moreover, a coupled thermo-mechanical simulation of the stamping process was performed using the implemented code at different temperatures. The parameters employed in the simulation were determined by the standard tensile tests and algebraic manipulation. The overall anisotropic damage process from crack initiation to final propagation in local area of blank was simulated. Numerical results show that the prediction of the site of crack initiation and the orientation of crack propagation are consistent with the data observed in warm stamping experiments.

Zhao, P. J.; Chen, Z. H.; Dong, C. F.

2014-11-01

261

Texas Food Stamp Employment and Training/JOBS Conformance Demonstration: Impact Evaluation Final Report.  

ERIC Educational Resources Information Center

An evaluation was conducted of the Texas Food Stamp Employment and Training (FSE&T)/Job Opportunities and Basic Skills (JOBS) Program Conformance Demonstration. The BOND (Better Opportunities for New Directions) demonstration program tested conformance compatibility between the FSE&T and JOBS programs. It enacted such policy changes as exemption…

Schexnayder, Deanna T.; Olson, Jerome A.

262

Hawaii Food Stamp Employment and Training/JOBS Conformance Demonstration: Impact Evaluation Final Report.  

ERIC Educational Resources Information Center

An evaluation was conducted of the Hawaii Food Stamp Employment and Training/Job Opportunities and Basic Skills Program Conformance Demonstration, known as PRIDE (Positive Response in Developing Employment). The impact analysis examined client participation patterns, services, and employment outcomes. A pre-post/demonstration-comparison site…

Schexnayder, Deanna T.; Olson, Jerome A.

263

The study on numerical simulation of the laser tailor welded blanks stamping  

Microsoft Academic Search

The stamping process of the tailor welded blank (TWB) was simulated by the software of DYNAFORM. The finite element model of a boxy part was founded, and the forming of different thickness and properties of the material was studied. Meanwhile, the influence of weld seam on forming result was analyzed. The results show that the weld seam model which founded

X. G. Qiu; W. L Chen

2007-01-01

264

Failure Analysis of Warm Stamping of Magnesium Alloy Sheet Based on an Anisotropic Damage Model  

NASA Astrophysics Data System (ADS)

Based on the frame work of continuum damage mechanics, a research work of anisotropic damage evolution in warm stamping process of magnesium alloy sheets has been carried out by means of a combined experimental-numerical method. The aim was to predict formability of warm stamping of AZ31 Mg alloy sheets by taking the thermal and damage effects into account. In the presented work, a temperature-dependent anisotropic yield function suitable for cold rolling sheet metals together with an anisotropic damage model was implemented into the a VUMAT subroutine for ABAQUS/EXPLICIT. The evolution of internal damage in the form of void growth and coalescence in AZ31 Mg alloy sheet was observed by means of scanning electron microscopy (SEM). Moreover, a coupled thermo-mechanical simulation of the stamping process was performed using the implemented code at different temperatures. The parameters employed in the simulation were determined by the standard tensile tests and algebraic manipulation. The overall anisotropic damage process from crack initiation to final propagation in local area of blank was simulated. Numerical results show that the prediction of the site of crack initiation and the orientation of crack propagation are consistent with the data observed in warm stamping experiments.

Zhao, P. J.; Chen, Z. H.; Dong, C. F.

2014-08-01

265

Falling through the Social Safety Net: Food Stamp Use and Nonuse among Older Impoverished Americans  

ERIC Educational Resources Information Center

Purpose: Older adults are less likely than any other age group to use the federal Food Stamp Program. The personal and social costs of elderly diet insufficiency include disease exacerbation, depression, and increased hospitalization. In order to improve targeting and outreach efforts, this study identifies the characteristics of eligible older…

Fuller-Thomson, Esme; Redmond, Melissa

2008-01-01

266

Examining the Relationship between the EITC and Food Stamp Program Participation Among Households with Children  

Microsoft Academic Search

The federal Earned Income Tax Credit (EITC) and the Food Stamp Program (FSP) are the largest means-tested transfer programs for low-income working parents in the United States. Together, these two programs cost nearly $50 billion per year and comprise the bulk of the social safety net for working poor families. This paper examines how these two programs interact, particularly the

Robert I. Lerman; Kelly S. Mikelson

2004-01-01

267

Corrosion resistance characteristics of stamped and hydroformed proton exchange membrane fuel cell metallic bipolar plates  

Microsoft Academic Search

Metallic bipolar plates have several advantages over bipolar plates made from graphite and composites due to their high conductivity, low material and production costs. Moreover, thin bipolar plates are possible with metallic alloys, and hence low fuel cell stack volume and mass are. Among existing fabrication methods for metallic bipolar plates, stamping and hydroforming are seen as prominent approaches for

F. Dundar; Ender Dur; S. Mahabunphachai; M. Koç

2010-01-01

268

Strawberry notch homologue 2 regulates osteoclast fusion by enhancing the expression of DC-STAMP.  

PubMed

Osteoclasts are multinucleated cells formed by fusion of mononuclear precursors in response to receptor activator of nuclear factor ?B (NF-?B) ligand (RANKL). We found that RANKL induced expression of the DExD/H helicase family corepressor strawberry notch homologue 2 (Sbno2). Previous in vitro studies showed that Sbno2 is induced by IL-10 and is involved in NF-?B repression. However, the role of Sbno2 in vivo and its pleiotropic functions are unknown. Sbno2 gene targeting resulted in normal NF-?B activation by TLR ligands. However, Sbno2-deficient mice exhibited increased bone mass due to impaired osteoclast fusion. Expression of dendritic cell-specific transmembrane protein (DC-STAMP), a critical player in osteoclast fusion, was significantly attenuated, and cell fusion of Sbno2-deficient osteoclasts was rescued by DC-STAMP. Sbno2 directly bound to T cell acute lymphocytic leukemia 1 (Tal1) and attenuated its inhibition of DC-STAMP expression, leading to activation of the DC-STAMP promoter by microphthalmia-associated transcription factor (MITF). Thus, Sbno2 plays a pivotal role in bone homeostasis in vivo by fine-tuning osteoclast fusion. PMID:23980096

Maruyama, Kenta; Uematsu, Satoshi; Kondo, Takeshi; Takeuchi, Osamu; Martino, Mikaël M; Kawasaki, Takumi; Akira, Shizuo

2013-09-23

269

Texas Food Stamp Employment and Training/JOBS Conformance Demonstration: Cost Analysis Final Report. Revised.  

ERIC Educational Resources Information Center

An evaluation was conducted of the Texas Food Stamp Employment and Training(E&T)/Job Opportunities and Basic Skills Program Conformance Demonstration. The cost analysis determined the impact of the demonstration, the BOND (Better Opportunities for New Directions) program, on costs of administering and providing activity components and support…

O'Shea, Daniel P.; Norris, Dave N.

270

Service-Learning with a Food Stamp Enrollment Campaign: Community and Student Benefits  

ERIC Educational Resources Information Center

We analyze a multi-campus collaboration in a Food Stamp Enrollment Campaign to demonstrate that a well-managed public benefits campaign, associated with broader advocacy-based community partnerships, can result in positive outcomes for the community that include measurable benefits for clients, data needed to make policy and administrative…

Porter, Judith R.; Summers, Mary; Toton, Suzanne; Aisenstein, Hillary

2008-01-01

271

Development of Core Competencies for Paraprofessional Nutrition Educators Who Deliver Food Stamp Nutrition Education  

ERIC Educational Resources Information Center

The purpose of this project was to describe the process used for the development of core competencies for paraprofessional nutrition educators in Food Stamp Nutrition Education (FSNE). The development process included the efforts of an expert panel of state and multicounty FSNE leaders to draft the core competencies and the validation of those…

Baker, Susan S.; Pearson, Meredith; Chipman, Helen

2009-01-01

272

Page 1 of 3 Adding a Punch or Reconciling Time for Time Stamp and Time Clock  

E-print Network

Page 1 of 3 Adding a Punch or Reconciling Time for Time Stamp and Time Clock Users A punch will punch in and out. 1) Click My QuickNavs Tab. Select Reconcile Time . 2) If an employee does not appear on the screen, select the drop down arrow next to Show and then select All Home. You have the option to show all

Hutcheon, James M.

273

31 CFR 500.410 - Currency, coins, and postage and other stamps.  

Code of Federal Regulations, 2010 CFR

...and postage and other stamps issued by North Korea, North Viet-Nam, Cambodia, or South Viet-Nam are merchandise of North Korean, North Vietnamese, Cambodian, or South Vietnamese origin subject to § 500.204(a)(1). [41 FR 16554, Apr....

2010-07-01

274

Food Stamp Program Participation Is Associated with Better Academic Learning among School Children1,2  

Microsoft Academic Search

Household food insecurity is associated with multiple adverse outcomes in children and adolescents, including poor school performance. U.S. federal food assistance programs such as the Food Stamp Program (FSP) aim to help prevent household food insecurity and its outcomes. Program participation may act as a resource either to counteract the effects of constraints such as food insecurity or to modify

Edward A. Frongillo; Diana F. Jyoti; Sonya J. Jonesy

275

THE EFFECT ON DIETARY QUALITY OF PARTICIPATION IN THE FOOD STAMP AND WIC PROGRAMS  

Microsoft Academic Search

Participants in the Food Stamp Program consume more meats, added sugars, and total fats than they would in the absence of the program, while their consumption of fruits, vegetables, grains, and dairy products stays about the same. Participants in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) consume significantly less added sugars, which may reflect the substitution

Parke E. Wilde; Paul E. McNamara; Christine K. Ranney

2002-01-01

276

Determination of Proper Austenitization Temperatures for Hot Stamping of AISI 4140 Steel  

NASA Astrophysics Data System (ADS)

High strength steels are desirable materials for use in automobile bodies in order to reduce vehicle weight and increase the safety of car passengers, but steel grades with high strength commonly show poor formability. Recently, steels with controlled microstructures and compositions are used to gain adequate strength after hot stamping while maintaining good formability during processing. In this study, microstructure evolutions and changes in mechanical properties of AISI 4140 steel sheets resulting from the hot stamping process at different austenitization temperatures were investigated. To determine the proper austenitization temperatures, the results were compared with those of the cold-worked and cold-worked plus quench-tempered specimens. Comparisons showed that the austenitization temperatures of 1000 and 1100 °C are proper for hot stamping of 3-mm-thick AISI 4140 steel sheets due to the resultant martensitic microstructure which led to the yield and ultimate tensile strength of 1.3 and 2.1 GPa, respectively. Such conditions resulted in more favorable simultaneous strength and elongation than those of hot-stamped conventional boron steels.

Samadian, Pedram; Parsa, Mohammad Habibi; Shakeri, Amid

2014-04-01

277

Spatial Food Stamp Program Participation Dynamics in U.S. Counties  

Microsoft Academic Search

Understanding the factors that account for differences in food stamp expenditure dynamics over space is important not only for potentially improving public policy but also for clarifying the relative roles of factors that are and are not under the control of welfare recipients in determining their ability to move off welfare rolls. This study contributes to the literature by including

Stephan J. Goetz; Anil Rupasingha; Julie N. Zimmerman

2004-01-01

278

MICROSTRUCTURE EVOLUTION AND MECHANICAL RESPONSE IN THE HOT STAMPING PROCESS AUTHORS  

Microsoft Academic Search

In the manufacturing of ultra high strength boron steel components with the hot stamping process, it is of great importance that the final product will have the desired material properties. This is especially true for safety related automotive components. Often the preferred microstructure is a mix of martensite and bainite. In this work a model is developed and implemented in

Mats Oldenburg

279

Food Stamp and School Lunch Programs Alleviate Food Insecurity in Rural America. Fact Sheet  

ERIC Educational Resources Information Center

The Food Stamp and the National School Lunch Programs play a vital role in helping poor, rural Americans obtain a more nutritious diet and alleviate food insecurity and hunger. This fact sheet looks at the extent to which rural America depends on these programs and describes characteristics of beneficiaries of these federal nutrition assistance…

Smith, Kristin; Savage, Sarah

2007-01-01

280

press.princeton.edu press.princeton.edu  

E-print Network

wildly different influences of greece and rome in art, music, and fiction, with a glancea press.princeton.edu press.princeton.edu Ancient World 2012 #12;Front cover image courtesy by Dorothy J. Thompson, featured on page 6. ForThcoming How to Win an Election An Ancient guide for modern

Landweber, Laura

281

Live fast, die young  

Microsoft Academic Search

Massive stars: How far away are they? How do they form? What is a star's maximum mass? What role did they play after the big bang? How do massive binaries form? Can planets form around massive stars? What role do rotation and magnetic fields play? How do massive single and binaries evolve? How do they die?

Yaël Nazé

2006-01-01

282

Poetry and the Dying.  

ERIC Educational Resources Information Center

Demonstrates roles poetry can play as people confront the death of loved ones and their own dying. Gives examples of Heinrich Heine transforming his agony into art and, from the poetry of two college students, both in advanced stages of neurological disease, which was read aloud in class, teaching all present something about how to approach their…

Kramer, Aaron

1992-01-01

283

When Somebody Dies  

MedlinePLUS

... after the body dies is often called the "soul" or "spirit." Some people believe the soul is the part of a human that loves, ... one really knows what happens to a person's soul after death. There are many different beliefs about ...

284

Archimedes, und die gestorten  

E-print Network

Archimedes, und die gest¨orten Kreise Vortrag im Naturhistorischen Museum Mainz Prof. Dr. Duco van;Archimedes Gem¨alde von Jusepe de Ribera (1630) (Madrid) #12;Archimedes Gem¨alde von Domenico Fetti (1620-241 #12;· 263: Friedensvertrag mit Rom · Fast f¨unfzig Jahre Frie- den! · Archimedes wird Berater am Hof

van Straten, Duco

285

Open Humanities Press  

NSDL National Science Digital Library

As more and more journals elect to move to an open-source model, it is delightful to learn about the existence of the Open Humanities Press (OHP). Their mission is "to make leading works of contemporary critical thought freely available worldwide." First-time visitors will want to look over the "About OHP" section before delving into the rest of the site. Afterwards, they should feel free to look through one of their seven journals, which include "Cosmos and History", "Culture Machine", "Film-Philosophy", and "Fibreculture". While all of the journals are worth a look, the "Film-Philosophy" journal is particularly compelling, and visitors can browse through issues back to 1997. Finally, visitors can also learn about submitting their work for consideration and also take in a few essays about the guiding principles and history of the OHP.

286

Modeling the Mechanical Performance of Die Casting Dies  

SciTech Connect

The following report covers work performed at Ohio State on modeling the mechanical performance of dies. The focus of the project was development and particularly verification of finite element techniques used to model and predict displacements and stresses in die casting dies. The work entails a major case study performed with and industrial partner on a production die and laboratory experiments performed at Ohio State.

R. Allen Miller

2004-02-27

287

PRESS RELEASE FROM MOLECULAR PSYCHIATRY  

E-print Network

PRESS RELEASE FROM MOLECULAR PSYCHIATRY (http://www.nature.com/mp) For a paper that will be published online on 09 August 2011 This press release is copyrighted to the journal Molecular Psychiatry of 1934. PICTURES: While we are happy for images from Molecular Psychiatry to be reproduced

Cai, Long

288

PRESS RELEASE FROM MOLECULAR PSYCHIATRY  

E-print Network

PRESS RELEASE FROM MOLECULAR PSYCHIATRY (http://www.nature.com/mp) For papers that will be published online on 30 August 2011 This press release is copyrighted to the journal Molecular Psychiatry Exchange Act of 1934. PICTURES: While we are happy for images from Molecular Psychiatry to be reproduced

Cai, Long

289

PRESS RELEASE FROM MOLECULAR PSYCHIATRY  

E-print Network

PRESS RELEASE FROM MOLECULAR PSYCHIATRY (http://www.nature.com/mp) For papers that will be published online on 21 February 2012 This press release is copyrighted to the journal Molecular Psychiatry Exchange Act of 1934. PICTURES: While we are happy for images from Molecular Psychiatry to be reproduced

Cai, Long

290

PRESS RELEASE FROM TRANSLATIONAL PSYCHIATRY  

E-print Network

PRESS RELEASE FROM TRANSLATIONAL PSYCHIATRY (http://www.nature.com/tp/) This press release is copyrighted to the journal Translational Psychiatry Its use is granted only for journalists and news media of 1934. PICTURES: While we are happy for images from Translational Psychiatry to be reproduced

Cai, Long

291

Computer Technology Institute & Press "DIOPHANTUS"  

E-print Network

and femtocell technology. Next Generation Networks: RU6 research in this area deals with the latest. . . . . . . . . Computer Technology Institute & Press "DIOPHANTUS" Research Unit 6 http://ru6.cti.gr Networks, Telematics and New Services 2014 #12;Computer Technology Institute & Press "Diophantus

Bouras, Christos

292

Experimental based finite element simulation of cold isostatic pressing of metal powders  

Microsoft Academic Search

The present work addresses the various ingredients required for reliable finite element simulations of cold isostatic pressing (CIP) of metal powders. A plastic constitutive model for finite deformation is presented and implemented into an explicit finite element (FE) code. The FE implementation is verified so that numerical errors (both temporal and spatial errors) are kept under control. Thereafter, uniaxial die

M. Szanto; N. Frage; S. Hartmann; Z. Yosibash

2008-01-01

293

A comparison of impulse drying to double felted pressing on pilot- scale shoe presses and roll presses  

SciTech Connect

Pilot-scale shoe press and roll press experiments have been conducted to compare impulse drying and double felted pressing. Both ceramic coated and Beloit Type C press rolls have been evaluated. The experiments show that impulse drying can provide significantly higher outgoing solids than double felled pressing at the same impulse. For example, at an impulse of 0.234 MPa seconds (34 psi seconds), sheets at an ingoing solids of 52% were impulse dried (using the Beloit Type C press roll) to 68% solids while optimized double felled pressing could only yield press dryness of, at most, 60%.

Orloff, D.I.

1992-08-01

294

Die Kinder Laokoons  

Microsoft Academic Search

Zusammenfassung  Fünfzig Jahre nach ihrem Examen im Seminar für Sozialberufe der Arbeiterwohlfahrt (AWO) in Mannheim trafen sich Ehemalige\\u000a im Oktober 2010 zum dritten Mal. Beim Stadtrundgang durch Dresden entstand ein Gruppenfoto vor einem zeitgenössischen Laokoon.\\u000a Der antike Laokoon sollte — mit seinen Kindern — von Seeschlangen erwürgt werden. Denn er warnte die Trojaner vor dem Unheil,\\u000a welches das hölzerne Pferd verbarg.

Heinz Kapp

2011-01-01

295

Die Radiolandschaft Deutschlands  

Microsoft Academic Search

\\u000a Die Zukunft des Radios ist – um es mit einem Bonmot frei nach Karl Valentin zu sagen – auch nicht mehr das, was sie einmal\\u000a war. Ende der 1990er Jahre galt es in der Medienpolitik noch als ausgemachte Sache, dass der analoge UKW-Hörfunk bis 2015\\u000a zugunsten des digitalen Nachfolgestandards DAB abgeschaltet wird. Doch sowohl bei den Übertragungsstandards als auch bei

Rolf Karepin

296

Die emotionalen Viren  

Microsoft Academic Search

\\u000a 1911 veröffentlichte der amerikanische Ingenieur Frederick Winslow Taylor sein Hauptwerk „Die Grundsätze wissenschaftlicher\\u000a Betriebsführung“, basierend auf seiner Erfahrung als beratender Ingenieur bei Bethlehem Steel, dem ehemals zweitgrößten Stahlproduzenten\\u000a in den USA. Taylor wurde durch dieses Werk so berühmt, dass 69.000 Menschen seine Rede über wissenschaftliche Betriebsführung\\u000a hören wollten, als er 1914 als Key Note Speaker an einer New Yorker Veranstaltung

Jochen Peter Breuer; Pierre Frot

297

Die pharmakologische Wirkung des Ephedrins  

Microsoft Academic Search

Zusammenfassung 1.Die pharmakologische Wirkung des Ephedrins wurde zu analysieren versucht durch Studium der Beeinflussung des Blutdrucks, der Herzaktion und der Gefäße, des Effekts am Atemzentrum und an den Bronchien, der Wirkung auf die Pupillenweite, auf den Darm und den Uterus, auf die Sekretion verschiedener Drüsen und den Blutzuckerspiegel.2.Es wurden folgende Wirkungen gefunden: Der Blutdruck wird erhöht durch kleine Dosen, erniedrigt

H. Kreitmair

1927-01-01

298

Dehydration and the dying patient  

Microsoft Academic Search

This study investigated the relationship between symptoms and dehydration in 82 subjects with malignant disease. Assessment of respiratory tract secretions, thirst, and dry mouth were made during the dying phase, and serum biochemistry was analyzed. Follow-up data were also collected when the patient died. The median time from entry into the study until death was 2 days. All subjects died

John E. Ellershaw; Jane M. Sutcliffe; Cicely M. Saunders

1995-01-01

299

Measure Your Sew - How: Pressing Points.  

E-print Network

good looking garment that needs little final pressing. Pressing differs from ironing. When pressing, the iron is lifted up and down rather than back and forth, applying some pressure with each move. Pressing prevents stretching or pulling the fabric...-sewing or basting. Examples are clean finishing the raw edge of a facing by pressing before stitching down, or pressing under the top of a hem before blind hemming by machine, or pressing open enclosed seams of a collar or cuff before grading and turning. Press...

Odle-Kemp, Marlene

1979-01-01

300

Nanofabrication of Nickel Stamp for Replication of Polymer Multilevel Nanolens Arrays via Modified Two-Step Anodization Process  

NASA Astrophysics Data System (ADS)

In the present study, we propose a novel and low-cost nanofabrication technique for a nickel stamp for mass replication of polymer multilevel nanolens (MLNL) arrays. The present nanofabrication technique consists of a modified two-step anodization process and successive electroforming processes. As the first step in the fabrication of the nickel stamp, an aluminum template with multilevel nanodimple (MLND) arrays on an aluminum substrate was precisely fabricated by a modified two-step anodization, in which the processing condition of the second anodization step was changed. A nickel stamp with MLND arrays for the replication of a polymer substrate with MLNL arrays was achieved by electroforming onto the aluminum template with MLND arrays (a nickel template with MLNL arrays) followed by a second electroforming onto the obtained nickel template with MLNL arrays. The fabricated nickel stamp with MLND arrays was successfully used to replicate the polymer substrates with MLNL arrays via a hot embossing process.

Cha, Kyoung Je; Lee, Bong-Kee; Kim, Dong Sung

2011-06-01

301

Numerical simulation and experimental verification in the use of tailor-welded blanks in the multi-stage stamping process  

Microsoft Academic Search

Various social requirements have extended the use of tailor-welded blanks in the automotive industry. The welding of blanks with different material grades, thickness, strength and coatings had introduced many challenging formability problems for the stamping process of tailor-welded blanks. However, in some situations the multi-stage process is a very effective solution for the stamping of tailor-welded blanks with a relatively

H. M. Jiang; S. H. Li; H. Wu; X. P. Chen

2004-01-01

302

Stamping surface-enhanced Raman spectroscopy for label-free, multiplexed, molecular sensing and imaging.  

PubMed

We report stamping surface-enhanced Raman spectroscopy (S-SERS) for label-free, multiplexed, molecular sensing and large-area, high-resolution molecular imaging on a flexible, nonplasmonic surface without solution-phase molecule transfer. In this technique, a polydimethylsiloxane (PDMS) thin film and nanoporous gold disk SERS substrate play the roles as molecule carrier and Raman signal enhancer, respectively. After stamping the SERS substrate onto the PDMS film, SERS measurements can be directly taken from the "sandwiched" target molecules. The performance of S-SERS is evaluated by the detection of Rhodamine 6G, urea, and its mixture with acetaminophen, in a physiologically relevant concentration range, along with the corresponding SERS spectroscopic maps. S-SERS features simple sample preparation, low cost, and high reproducibility, which could lead to SERS-based sensing and imaging for point-of-care and forensics applications. PMID:24805805

Li, Ming; Lu, Jing; Qi, Ji; Zhao, Fusheng; Zeng, Jianbo; Yu, Jorn Chi-Chung; Shih, Wei-Chuan

2014-05-01

303

Patterned array of nanoparticles on substrates via contact printing method with CNTs/AAO stamp.  

PubMed

Patterned arrays of Fe oxide nanoparticles were transferred via contact printing method on a substrate surface using carbon nanotubes embedded in anodic aluminum oxide (CNTs/AAO) as a stamp, in which vertically aligned CNTs in hexagonally patterned array was first fabricated by chemical vapor deposition into the AAO, followed by a partial chemical etching to expose the CNTs from the AAO. Fe precursor inked CNTs stamp was contact-printed on a Pt-coated Si substrate, and after heat treatment at 200 degrees C, patterned array of Fe oxide nanoparticles with ca. 80 nm of diameter and ca. 120 nm of inter-distance between the nanoparticles was consequently obtained. PMID:19049112

Kim, Youn-Su; Ahn, Hyo-Jin; Nam, Sang Hoon; Lee, Sang Ho; Shim, Hee-Sang; Kim, Won Bae

2008-09-01

304

Die neue Grüne Revolution in Afrika.  

E-print Network

??Die Bekämpfung von weltweitem Hunger bildet ein wesentliches Ziel der internationalen Entwicklungspolitik. Zwei private US-amerikanische Stiftungen, die Rockefeller und die Bill-and-Melinda-Gates Stiftung, gründeten 2006 die… (more)

Gradinger, Daniela

2011-01-01

305

Influence of material properties variability on springback and thinning in sheet stamping processes: a stochastic analysis  

Microsoft Academic Search

A very critical issue for stamping operations is the improvement of process robustness. The reliability of final results,\\u000a in fact, strongly depends on the intrinsic variability due to stochastic behavior of many parameters, namely, operative ones\\u000a and material properties. A given process performance may undergo a variation around the value which would be obtained neglecting\\u000a stochastic behaviors of the operative

Laura Marretta; Rosa Di Lorenzo

2010-01-01

306

Service-Learning with a Food Stamp Enrollment Campaign: Community and Student Benefits  

Microsoft Academic Search

We analyze a multi-campus collaboration in a Food Stamp Enrollment Campaign to demonstrate that a well-managed public benefits campaign, associated with broader advocacy-based community partner- ships, can result in positive outcomes for the community that include measurable benefits for clients, data needed to make policy and administrative changes, and new institutional relationships that enhance existing capacities. Public benefits campaigns also

Judith R. Porter; Mary Summers; Suzanne Toton; Hillary Aisenstein

307

Welfare Reform: Few States Are Likely to Use the Simplified Food Stamp Program  

NSDL National Science Digital Library

This report, released by the US General Accounting Office (GAO), examines some of the consequences of the federal Welfare Reform Act of 1996. The report studies the Simplified Food Stamp Program provision of the Welfare Reform Act to identify the seven states that have adopted the program, describe the concerns of the non-participant states regarding increased casework and restricted options, and examines the program's limited effects on households's eligibility and benefits.

1999-01-01

308

ANU E Press New Releases  

E-print Network

authors that publish through E Press can claim points under the Higher Education Research Data Collection to researchers whose work is excellent but may lack a significant commercial audience; · demolish barriers

309

The Pindar Press London 2009  

E-print Network

;Published by The Pindar Press 40 Narcissus Road London NW6 1TH · UK British Library Cataloguing a century ago, there raged two major international debates about rival claimants in wars of attribution

310

Rep. George Brown dies  

NASA Astrophysics Data System (ADS)

George E. Brown, ranking Democratic member of the U.S. House of Representatives Science Committee, died on July 15 at the age of 79 due to complications following a heart valve replacement last May. He was a strong advocate for science and environmental protection measures, and an independent thinker who sometimes found himself alone or far ahead of other people on issues. A congressman for 34 years who represented first the 29th Congressional District and then the 42nd District in California, Brown served on the science committee since 1965 and was chair from 1991 through 1994.

Showstack, Randy

311

Martensitic microstructural transformations from the hot stamping, quenching and partitioning process  

SciTech Connect

Hot stamping, which combines forming and quenching in one process, produces high strength steels with limited ductility because the quenching is uncontrolled. A new processing technique has been proposed in which the hot stamping step is followed by a controlled quenching and partitioning process, producing a microstructure containing retained austenite and martensite. To investigate this microstructure, specimens were heated at a rate of 10 deg. C/s to the austenitizing temperature of 900 deg. C, held for 5 min to eliminate thermal gradients, and cooled at a rate of 50 deg. C/s to a quenching temperature of 300 deg. C, which is between the martensite start temperature and the martensite finish temperatures. The resulting microstructure was examined using optical microscope, scanning electron microscopy and transmission electron microscopy. The material produced contains irregular, fragmented martensite plates, a result of the improved strength of the austenite phase and the constraints imposed by a high dislocation density. - Research Highlights: {yields} A novel heat treatment of advanced high strength steels is proposed. {yields} The processing technique is hot stamping plus quenching and partitioning process. {yields} The material produced contains irregular, fragmented martensite plates. {yields} The reason is strength of austenite phase and constraint of dislocation density.

Liu Heping [School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 (China); Jin Xuejun, E-mail: jin@sjtu.edu.cn [School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 (China); Dong Han; Shi Jie [Central Iron and Steel Research Institute, Beijing 100081 (China)

2011-02-15

312

Predictions of the Mechanical Properties and Microstructure Evolution of High Strength Steel in Hot Stamping  

NASA Astrophysics Data System (ADS)

Hot stamping is an innovative operation in metal-forming processes which virtually avoids the cracking and wrinkling of high strength steel (HSS) sheets. Examining the phase transformation and mechanical properties of HSS by means of experiments is challenging. In this article, a numerical model of the hot stamping process including forming, quenching, and air cooling was developed to reveal the microstructure evolution and to predict the final mechanical properties of hot-stamped components after multi-process cycles. The effects of the number of process cycles and the holding times on the temperature of HSS were examined using the model. The microstructure evolution of HSS under variable holding times is illustrated. The mechanical properties, particularly hardness and tensile strength, were predicted. It was found that the martensitic content increased with increasing holding time, and the martensitic content of the formed component at the flange and end was higher than for the sidewall, and lowest for the bottom. The hardness trend was consistent with the martensitic content. After six process cycles, the predictive errors of the model for hardness and tensile strength were acceptable for practical applications in engineering. Comparison between the predicted results and the experiment results showed that the developed model was reliable.

Cui, Junjia; Lei, Chengxi; Xing, Zhongwen; Li, Chunfeng; Ma, Shumei

2012-11-01

313

Prediction of Forming Limit Diagrams for 22MnB5 in Hot Stamping Process  

NASA Astrophysics Data System (ADS)

Hot stamping of ultra-high strength steels possesses many superior characteristics over conventional room temperature forming process and is fairly attractive in improving strength and reducing weight of vehicle body product. However, the mechanical and failure behavior of hot stamping boron steel 22MnB5 are both strongly affected by strain hardening, temperature, strain rate, and microstructure. In this paper, the material yield and flow behavior of 22MnB5 within the temperature and strain rate range of hot stamping are described by an advanced anisotropic yield criterion combined with two different hardening laws. The elevated temperature forming limit diagram (ET-FLD) is constructed using the M-K theoretical analysis. The developed model was validated by comparing our predicted result with experimental data in the literature under isothermal conditions. Based on the verified model, the influence of temperature and strain rate on the forming limit curve for 22MnB5 steel under equilibrium isothermal condition are discussed. Furthermore, the transient forming limit diagram is developed by performing a transient forming process simulation under non-isothermal transient condition.

Li, Hongzhou; Wu, Xin; Li, Guangyao

2013-08-01

314

Soft stamp UV-nanoimprint lithography for fabrication of laser diodes  

NASA Astrophysics Data System (ADS)

In this paper, we investigate a novel nanofabrication process called soft UV nanoimprint lithography, for nanopatterning of compound semiconductors. We use flexible stamps with three layers and analyze their performance with wafers composed of III-V semiconductors. The developed stamp configuration is in many ways advantageous for the fabrication of precise gratings for various applications in photonics. We describe how to handle the deformation in both lateral and vertical directions by tuning the softness of the stamp and using a two step imprint process. As an application of the UV-NIL, we demonstrate a fabrication process for a laterally corrugated distributed feedback laser. Our laser fabrication process is free from regrowth and therefore easily adaptable to various material compositions and emission wavelengths. Due to the cost effective full wafer NIL, these lasers are attractive in various applications where low cost, single-mode laser diodes are required. Our development work improves the design freedom of the NIL fabrication process of the laser diodes, and improves the quality of the transferred patterns. To the best of our knowledge, this is the first demonstration of a single-mode laser diode fabricated by soft UV-NIL.

Viheriälä, Jukka; Viljanen, Milla-Riina; Kontio, Juha; Leinonen, Tomi; Tommila, Juha; Dumitrescu, Michail; Niemi, Tapio; Pessa, Markus

2009-03-01

315

Evaluation of resistless Ga? beam lithography for UV NIL stamp fabrication.  

PubMed

This paper presents an alternative rapid prototyping approach for the fabrication of stamps for UV nanoimprint lithography. In this process, areas implanted with gallium serve as an etch mask for the dry etching of quartz. The implantation is performed using a focused ion beam system. To avoid charging of the quartz substrate the use of thin layers of chromium or carbon on the quartz substrate has been evaluated. The resulting quartz structures exhibit very smooth surfaces after dry etching, if the implantation dose is high enough to form a stable etch mask. Furthermore, anisotropic etching could be realized by optimization of a quartz etching process involving C?F? and O? after the use of resistless Ga(+) beam lithography. Finally, imprints into a UV curing resist are performed successfully with the manufactured stamps, proving that the presence of Ga rich areas on the stamp is not detrimental to the curing of the resist or the functionality of the anti-sticking layer. PMID:23942207

Rumler, M; Fader, R; Haas, A; Rommel, M; Bauer, A J; Frey, L

2013-09-13

316

Evaluation of resistless Ga+ beam lithography for UV NIL stamp fabrication  

NASA Astrophysics Data System (ADS)

This paper presents an alternative rapid prototyping approach for the fabrication of stamps for UV nanoimprint lithography. In this process, areas implanted with gallium serve as an etch mask for the dry etching of quartz. The implantation is performed using a focused ion beam system. To avoid charging of the quartz substrate the use of thin layers of chromium or carbon on the quartz substrate has been evaluated. The resulting quartz structures exhibit very smooth surfaces after dry etching, if the implantation dose is high enough to form a stable etch mask. Furthermore, anisotropic etching could be realized by optimization of a quartz etching process involving C4F8 and O2 after the use of resistless Ga+ beam lithography. Finally, imprints into a UV curing resist are performed successfully with the manufactured stamps, proving that the presence of Ga rich areas on the stamp is not detrimental to the curing of the resist or the functionality of the anti-sticking layer.

Rumler, M.; Fader, R.; Haas, A.; Rommel, M.; Bauer, A. J.; Frey, L.

2013-09-01

317

Die Auswirkungen von Stereotype Threat auf die Leseleistung im Volksschulalter.  

E-print Network

??In dieser Arbeit wurden mögliche Auswirkungen von Stereotype Threat auf die Leseleistung von Volksschulkindern der ersten und dritten Schulstufe untersucht. Aus der bisherigen Forschungsliteratur ist… (more)

Breitenfeld, Simone

2012-01-01

318

Die Rezidivvarikosis in der Kniekehle  

Microsoft Academic Search

Zusammenfassung   Während die mündungsnahe Ligatur der V. saphena magna bei der Behandlung der V.-saphena-magna-Insuffizienz sich als Standardmethode\\u000a etablierte, so finden sich bei der Abklärung der Rezidivvarikosis im Kniekehlen-bereich als Ursache zu lange V.-saphena-parva-Stümpfe\\u000a und zwar in unserem Patientengut in einer Häufigkeit, die darauf schließen läßt, daß die Absetzung der V. saphena parva am\\u000a Niveau der V. poplitea nicht generell durchgeführt

M. San Nicolò; W. Schullian

1998-01-01

319

Cyberbullying: die Perspektive der Eltern.  

E-print Network

??Nach eingehendem Studium der Literaturbefunde wurde ersichtlich, dass das Thema Cyberbullying in Österreich noch wenig erforscht ist. Ziel dieser explorativen Studie ist die Einschätzung des… (more)

Schopper, Nathalie

2010-01-01

320

Die Ibaditen und der Oman.  

E-print Network

??Die Ibadiya als islamische Denkrichtung ist eine der ältesten innerhalb der islamischen Kulturgeschichte; neben der jahrhunderte alten Geschichte - welche in der vorliegenden Arbeit vorgestellt… (more)

Sarmini, Jasmin

2008-01-01

321

Warum Normen für die Instandhaltung?  

NASA Astrophysics Data System (ADS)

Viele kennen Normen wie Konstruktionsnormen, in denen z. B. der Außendurchmesser, die Steigung, der Flankenwinkel und andere Maße eines Gewindes festgelegt sind. Es gibt Prüfnormen aber auch Normen eines Managementsystems wie des Qualitätsmanagements in der DIN-EN-ISO-9000-Familie. Aber warum Normen für die Instandhaltung? Begonnen hat es mit der DIN 31051, die 1985 veröffentlicht wurde. Es war die erste Instandhaltungsnorm weltweit und sie wurde von der Schweiz und Österreich übernommen. In ihr sind Begriffe der Instandhaltung, Grundlagen zum Abnutzungsprozess und Aktivitäten der Instandhaltung beschrieben. Es wurde der Begriff Instandsetzung statt Reparatur publiziert: Nicht mehr Flickschustern sondern einen funktionsfähigen Anlagenzustand möglichst erhalten.

Tschuschke, Werner E.

322

Gottfried von Einem - die Chorwerke.  

E-print Network

??Hauptziel dieser Arbeit war die Analyse des Chorschaffens Gottfried von Einems (GvEs) in musikalischer, entstehungsgeschichtlicher und aufführungsgeschichtlicher Hinsicht. In den musikalischen Analysen der Chorwerke wurde… (more)

Losen, Michael

2010-01-01

323

Preventing the press from engendering ethnic violence : press restraints and ethnic violence in Singapore  

E-print Network

This thesis aims to find a solution to a commonly held problem of ethnic violence that is engendered by the press. Based on the premise that governmental influence on the press in the form of press restraints can prevent ...

Saleem, Saleena Begum

2005-01-01

324

Über die Wirkung von Magnesium auf die Strophanthin-und die Barium-Tachykardie  

Microsoft Academic Search

Zusammenfassung 1.Magnesium (Sulfat und Chlorid) zeigt in großen Dosen beim narkotisierten Hunde eine die Reizbildung und Reizleitung lähmende Wirkung.2.Die durch Strophanthin und durch Chlorbarium ausgelösten ventrikulären Tachykardien können durch Magnesium aufgehoben oder in Herzstillstand übergeführt werden. Das durch Magnesium stillgestellte Herz zeigt guten Tonus und spricht auf mechanische Reize gut an.3.Mit Magnesium vorbehandelte Tiere zeigen die therapeutische Strophanthinwirkung deutlich; Rhythmusstörungen

C. J. Rothberger; L. Zwillinger

1936-01-01

325

Method for Fabricating Composite Structures Using Continuous Press Forming  

NASA Technical Reports Server (NTRS)

A method for fabricating composite structures at a low-cost. moderate-to-high production rate. A first embodiment of the method includes employing a continuous press forming fabrication process. A second embodiment of the method includes employing a pultrusion process for obtaining composite structures. The methods include coating yarns with matrix material, weaving the yarn into fabric to produce a continuous fabric supply and feeding multiple layers of net-shaped fabrics having optimally oriented fibers into a debulking tool to form an undebulked preform. The continuous press forming fabrication process includes partially debulking the preform, cutting the partially debulked preform and debulking the partially debulked preform to form a net-shape. An electron-beam or similar technique then cures the structure. The pultrusion fabric process includes feeding the undebulked preform into a heated die and gradually debulking the undebulked preform. The undebulked preform in the heated die changes dimension until a desired cross-sectional dimension is achieved. This process further includes obtaining a net-shaped infiltrated uncured preform, cutting the uncured preform to a desired length and electron-beam curing (or similar technique) the uncured preform. These fabrication methods produce superior structures formed at higher production rates. resulting in lower cost and high structural performance.

Farley, Gary L. (Inventor)

1997-01-01

326

Analysis and modeling of hot extrusion die for its service life enhancement  

NASA Astrophysics Data System (ADS)

Aluminum extrusion finds extensive application in the construction, automobile and aerospace industries. High pressures, elevated temperatures, complex and intricate section geometries lead to repeated mechanical and thermal stresses in the die and affiliated tooling. Product rework and rejects can be traced back to various defects spread over the die life cycle: die design, die manufacture and heat treatment, process parameters, inprocess die maintenance/correction and, billet type and quality. Therefore, improved and efficient service life of die and related tooling used in the extrusion press is one the most important factors in maximizing productivity and minimizing cost for ensuring the economical efficiency of an aluminum extrusion plant. How often a die has to be scrapped and replaced with a new one directly contributes to the commercial viability of producing a certain profile. The focus of the current work is on three distinct yet inter-related studies pertaining to the improvement of aluminum extrusion die. Study-A (Die Failure Analysis) is an investigation of various modes and critical failure types based on industrial data (Chapter-2 ), examination of failed dies and finite element simulation for identification of critical process parameters and design features in die fatigue-life (Chapter-3). In Study-B (Die Surface Hardening Treatment), two-stage controlled gas nitriding process for H13 steel is evaluated, both experimentally and numerically, in terms of nitrided case morphology and properties (Chapter-4) followed by experimental and numerical investigation of the effects of repeated nitriding (Chapter-5), pre-nitriding surface preparation (Chapter-6) and die profile geometry (Chapter-7) on nitriding performance in regard to die service life. In Study-C (Effect of Billet Quality on Die Life), the effect of billet quality and related influencing extrusion parameters on the die service life is investigated based on industrial data and some regression-based die life models are proposed (Chapter-8 ). This is followed by a detailed microstructural investigation of different billet samples and finite element analysis of extrusion process to observe the influence of smelter (primary) and recycled (secondary) billets on the useful life of extrusion die (Chapter-9).

Akhtar, Syed Sohail

327

Finite Element Analysis of Deformation Homogeneity During Continuous and Batch Type Equal Channel Angular Pressing  

NASA Astrophysics Data System (ADS)

Equal channel angular pressing (ECAP) is the most promising and interesting process for refining the grain size to an ultrafine grain or nanosize by imposing severe plastic deformation into the workpiece and repeating the process while maintaining the original cross-section of the workpiece. In this paper, we simulated the batch type ECAP and the continuous type equal channel multi-angular pressing (ECMAP), which can impose large deformation by repeating the shear deformation, using the finite element method and investigated the similarity and difference of the two processes. In particular, modified die design of the continuous type ECMAP was proposed for strain uniformity.

Jung, Jaimyun; Yoon, Seung Chae; Jun, Hyun-Joon; Kim, Hyoung Seop

2013-11-01

328

Die Hirndurchblutung aus klinischer Sicht  

Microsoft Academic Search

Zusammenfassung Der Schlaganfall ist seit der Antike bekannt. Er stellt die zweithäufigste Todesursache in den Industrienationen und die häufigste Ursache vorzeitiger Invalidität dar. In ca. 80% liegen dem Schlaganfall zerebrale Ischämien zugrunde. In den übrigen 20% handelt es sich um intrazerebrale Blutungen, Subarachnoidalblutungen, Sinusvenenthrombosen oder nicht näher bezeichnete zerebrovaskulär Erkrankungen. Das Gehirn ist als eines der am besten durchbluteten Organe

Josef Georg Heckmann; Frank Joachim Erbguth; Max Josef Hilz; Christoph Johannes German Lang; Bernhard Neundörfer

2001-01-01

329

Killing, letting die and euthanasia  

Microsoft Academic Search

Medical ethicists debate whether or not the moral assessment of cases of euthanasia should depend on whether the patient is 'killed' or 'allowed to die'. The usual presupposition is that a clear distinction between killing and letting die can be drawn so that this substantive question is not begged. I contend that the categorisation of cases of instances of killing

D N Husak

1979-01-01

330

Über die Rotationswärme des Wasserstoffs  

Microsoft Academic Search

Zusammenfassung Die neuere Entwicklung der Bandentheorie macht bei zweiatomigen Molekülen ein Elektronenimpulsmoment 1\\/2 senkrecht zur Kernverbindungslinie wahrscheinlich. Der Einfluß hiervon auf die Theorie der Rotationswärme besteht hauptsächlich darin, das berechnete Trägheitsmoment des Moleküls auf 2\\/3 des früheren Wertes herabzudrücken, das ist auf 1,4. 10-41 beim Wasserstoff, was zu anderweitigen Schätzungen (Konstante der Dampfdruckformel, Viellinienspektrum) besser stimmt.

Erwin Schrödinger

1924-01-01

331

Two Piece Compaction Die Design  

SciTech Connect

Compaction dies used to create europium oxide and tantalum control plates were modeled using ANSYS 11.0. Two-piece designs were considered in order to make the dies easier to assemble than the five-piece dies that were previously used. The two areas of concern were the stresses at the interior corner of the die cavity and the distortion of the cavity wall due to the interference fit between the two pieces and the pressure exerted on the die during the compaction process. A successful die design would have stresses less than the yield stress of the material and a maximum wall distortion on the order of 0.0001 in. Design factors that were investigated include the inner corner radius, the value of the interference fit, the compaction force, the size of the cavity, and the outer radius and geometry of the outer ring. The results show that for the europium oxide die, a 0.01 in. diameter wire can be used to create the cavity, leading to a 0.0055 in. radius corner, if the radial interference fit is 0.003 in. For the tantalum die, the same wire can be used with a radial interference fit of 0.001 in. Also, for the europium oxide die with a 0.003 in. interference fit, it is possible to use a wire with a diameter of 0.006 in. for the wire burning process. Adding a 10% safety factor to the compaction force tends to lead to conservative estimates of the stresses but not for the wall distortion. However, when the 10% safety factor is removed, the wall distortion is not affected enough to discard the design. Finally, regarding the europium oxide die, when the cavity walls are increased by 0.002 in. per side or the outer ring is made to the same geometry as the tantalum die, all the stresses and wall distortions are within the desired range. Thus, the recommendation is to use a 0.006 in. diameter wire and a 0.003 in. interference fit for the europium oxide die and a 0.01 in. diameter wire and a 0.001 in. interference fit for the tantalum die. The dies can also be made to have the same outer geometry if desired.

Coffey, Ethan N [ORNL

2010-03-01

332

Removal of highly crosslinked resists and hybrid polymers for single micro parts fabrication and nanoimprint stamp rework  

NASA Astrophysics Data System (ADS)

Thick photoresists, e.g. up to 1 mm layer thickness, are widely used for the manufacture of high aspect ratio microstructures, e.g. as mould for the fabrication of metallic micro parts. Such resists or materials exhibit high mechanical and chemical stability to non-deformably withstand a pattern transfer process, e.g. by electroplating. After the pattern transfer a solvent based removal is difficult or not possible in many cases. A selective mould removal - without the damage of electroplated metal structures - is required for the fabrication of single micro parts. As second application example UV curable and strongly crosslinkable inorganic-organic hybrid polymers such as OrmoComp ® and OrmoStamp ® are used in UV moulding. The cleaning and rework of these moulds or also of stamps for nanoimprint lithography (NIL) is a challenging task with increasing importance. The life time of an expensive master mould or stamp as well as of the replicated working stamps is important, and therefore the ability to rework such stamps without any defect or decreased resolution. Hence, we demonstrate the application of a plasma-assisted removal using the STP 2020 etching tool from MUEGGE [1] for remote dry etching of strongly crosslinked materials, i.e. the development of processes for the isotropical etching of highly crosslinked photoresists and hybrid polymer materials will be presented. In combination with this specific etching tool this technique shows a high potential to make plasma-assisted removal ready for industrial production.

Voigt, Anja; Engelke, Rainer; Ahrens, Gisela; Bullerjahn, Franziska; Schleunitz, Arne; Klein, Jan J.; Grützner, Gabi

2014-03-01

333

Resolvin E1 regulates osteoclast fusion via DC-STAMP and NFATc1  

PubMed Central

Interactions between the immune and skeletal systems in inflammatory bone diseases are well appreciated, but the underlying molecular mechanisms that coordinate the resolution phase of inflammation and bone turnover have not been unveiled. Here we investigated the direct actions of the proresolution mediator resolvin E1 (RvE1) on bone-marrow-cell-derived osteoclasts in an in vitro murine model of osteoclast maturation and inflammatory bone resorption. Investigation of the actions of RvE1 treatment on the specific stages of osteoclast maturation revealed that RvE1 targeted late stages of osteoclast maturation to decrease osteoclast formation by 32.8%. Time-lapse vital microscopy and migration assays confirmed that membrane fusion of osteoclast precursors was inhibited. The osteoclast fusion protein DC-STAMP was specifically targeted by RvE1 receptor binding and was down-regulated by 65.4%. RvE1 did not affect the induction of the essential osteoclast transcription factor nuclear factor of activated T cells c1 (NFATc1) or its nuclear translocation; however, NFATc1 binding to the DC-STAMP promoter was significantly inhibited by 60.9% with RvE1 treatment as shown in electrophoresis mobility shift assay. Our findings suggest that proresolution mediators act directly on osteoclasts, in addition to down-regulation of inflammation, providing a novel mechanism for modulating osteoclast signaling in osteolytic inflammatory disease.—Zhu, M., Van Dyke, T. E., Gyurko, R. Resolvin E1 regulates osteoclast fusion via DC-STAMP and NFATc1. PMID:23629863

Zhu, Min; Van Dyke, Thomas E.; Gyurko, Robert

2013-01-01

334

Simulation and Evaluation of Phase Transformations and Mechanical Response in the Hot Stamping Process  

SciTech Connect

When producing thin ultra high strength steel components with the hot stamping process it is essential that the final component achieves desirable material properties. This applies in particular to passive automotive safety components. Often the desirable microstructure consists of a mix of martensite and bainite. Therefore, it is of great importance to accurately predict the final microstructure of the component early in the product development process. In this work a model to predict the austenite decomposition into ferrite, pearlite, bainite and martensite during arbitrary cooling paths for thin sheet boron steel is used. The decomposition model is based on Kirkaldy's rate equations and later modifications by Li et al. The modified model accounts for the effect from the added boron. The model is implemented as part of a material subroutine in the Finite Element Program LS-DYNA 970. Both the simulated volume fractions of micro-constituents and hardness profiles show good agreement with the corresponding experimental observations. The phase proportions affect both the thermal and the mechanical properties during the process of continuous cooling and deformation of the material. A thermo-elastic-plastic constitutive model including effects from changes in the microstructure as well as transformation plasticity is implemented in the LS-DYNA code. The material model is used in combination with a thermal shell formulation with quadratic temperature interpolation in the thickness direction to simulate the complete process of simultaneous forming and quenching of sheet metal components. The implemented model is used in coupled thermo-mechanical analysis of the hot stamping process and evaluated by comparing the results from hot stamping experiments. The results from simulations such as local thickness variations, hardness distribution and spring-back in the component show good agreement with experimental results.0.

Oldenburg, Mats; Salomonsson, Per [Luleaa University of Technology, Dep of Applied Physics and Mechanical Engineering, SE-97187 Luleaa (Sweden); Aakerstroem, Paul; Bergman, Greger [Gestamp Hartech AB, SE-97125 Luleaa (Sweden)

2007-05-17

335

Simulation and Evaluation of Phase Transformations and Mechanical Response in the Hot Stamping Process  

NASA Astrophysics Data System (ADS)

When producing thin ultra high strength steel components with the hot stamping process it is essential that the final component achieves desirable material properties. This applies in particular to passive automotive safety components. Often the desirable microstructure consists of a mix of martensite and bainite. Therefore, it is of great importance to accurately predict the final microstructure of the component early in the product development process. In this work a model to predict the austenite decomposition into ferrite, pearlite, bainite and martensite during arbitrary cooling paths for thin sheet boron steel is used. The decomposition model is based on Kirkaldy's rate equations and later modifications by Li et al. The modified model accounts for the effect from the added boron. The model is implemented as part of a material subroutine in the Finite Element Program LS-DYNA 970. Both the simulated volume fractions of micro-constituents and hardness profiles show good agreement with the corresponding experimental observations. The phase proportions affect both the thermal and the mechanical properties during the process of continuous cooling and deformation of the material. A thermo-elastic-plastic constitutive model including effects from changes in the microstructure as well as transformation plasticity is implemented in the LS-DYNA code. The material model is used in combination with a thermal shell formulation with quadratic temperature interpolation in the thickness direction to simulate the complete process of simultaneous forming and quenching of sheet metal components. The implemented model is used in coupled thermo-mechanical analysis of the hot stamping process and evaluated by comparing the results from hot stamping experiments. The results from simulations such as local thickness variations, hardness distribution and spring-back in the component show good agreement with experimental results.

Oldenburg, Mats; Åkerström, Paul; Bergman, Greger; Salomonsson, Per

2007-05-01

336

Dying and multiplying life.  

PubMed

It was only after James P. Lovette's death, in 2006, that I discovered that the twenty-four-year-old colleague and friend with whom I had spent so many afternoons debating issues in organ transplantation had been the first successful child heart transplantee in the world and one of the longest-living survivors of a second transplant. During the years we met, he never even hinted at the fact that three different hearts had beaten in his chest. The revelation that his life had been an almost uninterrupted chain of medical challenges suddenly made me appreciate his quirkiness in a whole new light. Organ transplantation crudely exemplifies a traditional moral dilemma between means and ends: in order to save a life, someone else has to die. Bioethicists involved in this field have the role of identifying the ethical issues surrounding organ donation and helping others to argue in an intelligible and convincing way. In my view, bioethicists have the obligation to foster a discussion as open and transparent as possible on these matters. Still, I sometimes fear that I may be helping to cause unnecessary harms to potential recipients who are desperately waiting for a vital organ. Scholars would be chillingly cold if their quest for truth systematically came at the cost of lives lost. Every life can be meaningful and provide meaning to many others. This is true even with organ recipients, who often have short lives full of considerable suffering. PMID:25231665

Rodríguez-Arias, David

2014-09-01

337

Dying and 'euthanasia'.  

PubMed

Medical progress, secularisation of life, growing acceptance of individual human rights (including the right to refuse medical treatment) and of shared decision-making in medicine have focused public attention on the ways in which life may, and perhaps even ought to, be allowed to end in our complex modern era. Intense and thoughtful bio-ethical debate over many years has 'unpacked' the many different understandings and interpretations of the word euthanasia. The consequent conceptual clarification together with recognition and acknowledgement of psychological implications has facilitated a growing rational consensus on openly accepting the withholding and withdrawing of treatment (under defined conditions) within the realm of sound medical practice. This is clearly distinct from assisted suicide and active euthanasia which are generally considered unacceptable perversions of medical practice. Given the ability to sustain life for prolonged periods, often in a permanent state of unconsciousness, the unrealistic expectations of some medical personnel and the lay public, the severe constraints on health care facilities in South Africa and the totally inadequate allocation of resources for highly effective medical treatments, it is appropriate to re-open public debate on the limits of 'striving officiously to keep alive' and on the distinction between 'allowing to die' and 'killing'. Concern that 'rational' arguments reflect moral decay rather than moral progress keeps the debate open and focuses attention on some 'slippery slope' consequences. PMID:1641720

Benatar, S R

1992-07-01

338

Heat Transfer in Hot Stamping of High-Strength Boron Steel Sheets  

NASA Astrophysics Data System (ADS)

An optimization-based numerical procedure was developed to determine the temperature-dependent interface heat transfer coefficient (IHTC) between blank and tools during the hot stamping of boron steel. During the quenching period, IHTC changed with the temperature difference between blank and lower tool. The maximum value of 4300 W/m2 K was achieved at ? T = 798 K (525 °C). The IHTC decreased with temperature difference and reached the lowest value (1400 W/m2 K) at about ? T = 573 K (300 °C).

Zhang, Zhiqiang; Li, Xianshuang; Zhao, Yong; Li, Xiangji

2014-08-01

339

Nowcasting and Forecasting the Monthly Food Stamps Data in the US Using Online Search Data  

PubMed Central

We propose the use of Google online search data for nowcasting and forecasting the number of food stamps recipients. We perform a large out-of-sample forecasting exercise with almost 3000 competing models with forecast horizons up to 2 years ahead, and we show that models including Google search data statistically outperform the competing models at all considered horizons. These results hold also with several robustness checks, considering alternative keywords, a falsification test, different out-of-samples, directional accuracy and forecasts at the state-level. PMID:25369315

Fantazzini, Dean

2014-01-01

340

Time Stamp Attack in Smart Grid: Physical Mechanism and Damage Analysis  

E-print Network

Many operations in power grids, such as fault detection and event location estimation, depend on precise timing information. In this paper, a novel time stamp attack (TSA) is proposed to attack the timing information in smart grid. Since many applications in smart grid utilize synchronous measurements and most of the measurement devices are equipped with global positioning system (GPS) for precise timing, it is highly probable to attack the measurement system by spoofing the GPS. The effectiveness of TSA is demonstrated for three applications of phasor measurement unit (PMU) in smart grid, namely transmission line fault detection, voltage stability monitoring and event locationing.

Gong, Shuping; Li, Husheng; Dimitrovski, Aleksandar D

2012-01-01

341

Single shot time stamping of ultrabright radio frequency compressed electron pulses  

NASA Astrophysics Data System (ADS)

We demonstrate a method of time-stamping Radio Frequency compressed electron bunches for Ultrafast Electron Diffraction experiments in the sub-pC regime. We use an in-situ ultra-stable photo-triggered streak camera to directly track the time of arrival of each electron pulse and correct for the timing jitter in the radio frequency synchronization. We show that we can correct for timing jitter down to 30 fs root-mean-square with minimal distortion to the diffraction patterns, and performed a proof-of-principle experiment by measuring the ultrafast electron-phonon coupling dynamics of silicon.

Gao, M.; Jiang, Y.; Kassier, G. H.; Dwayne Miller, R. J.

2013-07-01

342

Single shot time stamping of ultrabright radio frequency compressed electron pulses  

SciTech Connect

We demonstrate a method of time-stamping Radio Frequency compressed electron bunches for Ultrafast Electron Diffraction experiments in the sub-pC regime. We use an in-situ ultra-stable photo-triggered streak camera to directly track the time of arrival of each electron pulse and correct for the timing jitter in the radio frequency synchronization. We show that we can correct for timing jitter down to 30 fs root-mean-square with minimal distortion to the diffraction patterns, and performed a proof-of-principle experiment by measuring the ultrafast electron-phonon coupling dynamics of silicon.

Gao, M.; Dwayne Miller, R. J. [Department of Chemistry and Physics, University of Toronto, Toronto, ON. M5S 3H6 (Canada); Max Planck Research Department for Structural Dynamics, Department of Physics, Center for Free Electron Laser Science, University of Hamburg, DESY, D-22607 Hamburg (Germany); Jiang, Y.; Kassier, G. H. [Max Planck Research Department for Structural Dynamics, Department of Physics, Center for Free Electron Laser Science, University of Hamburg, DESY, D-22607 Hamburg (Germany)

2013-07-15

343

Legendary Filmmaker Dies at age 95  

NSDL National Science Digital Library

Legendary filmmaker Billy Wilder, who went from being a crime reporter in Vienna and a refugee from Nazism to becoming the creator of such classic films as Some Like It Hot and Sunset Boulevard, died at the age of 95 at his home in Beverly Hills this past Wednesday. With an extensive movie career that spans several decades, Wilder was the recipient of six Oscars and was the first filmmaker to win three Academy Awards in a single year. He was a master storyteller who specialized in exploring the dark side of American life with a cynicism and humor that few movie makers have ever matched. A writer, director, and producer, Wilder produced some of the industry's best dramas, like Double Indemnity and The Lost Weekend, as well as some of its funniest farces -- Some Like It Hot and The Fortune Cookie. He also was the man who first paired Jack Lemmon and Walter Matthau, creating one of the screen's most beloved comic teams.Wilder was born Samuel Wilder on June 22, 1906, in the Polish town of Sucha, then part of the Austro-Hungarian Empire. His mother nicknamed him Billy because of her fascination with the Western hero Buffalo Bill. In 1924, after briefly attending the University of Vienna, Wilder landed a job as a police reporter. His aggressive journalism led him to Berlin, where, enchanted by the city's film community, he decided to become a movie maker. For more information on this story, viewers may access the first two articles published by the United International Press and the Associated Press respectively. Those interested in a list of Wilder's many films may access the third site, also by the Associated Press. Sites four and five both give tribute to this filmmaking icon. Offered by the American Cinema, the first tribute provides biographical information on Wilder, as well as information on his filmography, academy awards, and co-screen writers. The second tribute offers various links to other Billy Wilder sites. Finally, the last site list quotations by Billy Wilder taken from "Conversations with Wilder" by Cameron Crowe.

Green, Marcia.

2002-01-01

344

Censorship and the Student Press.  

ERIC Educational Resources Information Center

The First Amendment rights provided to journalists--freedom of speech and of the press--are fundamental beliefs held by Americans. What students learn in the government class, however, may not be what they learn as editors-in-chief of student newspapers. U.S. schools are being charged with the censorship of student publications at an…

Oettinger, Lauren

345

PRESS RELEASE 2 February 2010  

E-print Network

defence products against a new industry standard. It features a replica living room inside a massive tank products which have been rigorously and consistently tested to the requirements of an industry standardPRESS RELEASE 2 February 2010 Replica house flooded by 196,000 gallons of water to test flood

346

Neuroscience 2013 The MIT Press  

E-print Network

Neuroscience 2013 The MIT Press 30% Discount Offer (See details on order form) #12;NEW BORGES perhaps dreamed the results of Quian Quiroga's discoveries, other thinkers--William James, Gustav Spiller, John Stuart Mill--had perhaps also dreamed a story like "Funes." With Borges and Memory, Quian Quiroga

Jackson, Daniel

347

Press Reports of Animal Hoarding  

Microsoft Academic Search

This article explores how the press reports nonhuman animal hoarding and hoarders. It discusses how 100 articles from 1995 to the present were content analyzed. Analysis revealed é ve emotional themes that include drama, revulsion, sympathy, indig- nation, and humor. While these themes draw readers' attention and make disparate facts behind cases understandable by pack- aging them in familiar formats,

Arnold Arluke; Randy Frost; Gail Steketee; Gary Patronek; Carter Luke; Edward Messner; Jane Nathanson; Michelle Papazian

2002-01-01

348

Gifted Education Press Quarterly, 1995.  

ERIC Educational Resources Information Center

This document consists of the four issues of the newsletter "Gifted Education Press Quarterly" published during 1995. This newsletter addresses issues in the education of gifted children and youth. The major articles are: (1) "Using Today's Technology: Parents Can Help Challenge Gifted Children" (Adrienne O'Neill); (2) "Outcomes-Based Education…

Fisher, Maurice D., Ed.

1995-01-01

349

Columbia University Press Jim Fleming  

E-print Network

policy. Students of climate dynamics would be well-served to study science dynamics (history). WeatherColumbia University Press 2010 Jim Fleming STS Program Colby College jfleming@colby.edu #12;A male-term average The thermostat dial is centered on Roswell, NM #12;The "Tipping Point" #12;Where will it roll? #12

Polz, Martin

350

Law and the Student Press.  

ERIC Educational Resources Information Center

Court cases and legal decisions involving the student press in the late 1960s and early 1970s are brought together in this book in order to show how the law has been applied to school officials and student journalists in high school, college, and the underground. The ten chapters cover the following topics: censorship, libel, obscenity, contempt,…

Stevens, George E.; Webster, John B.

351

NATIONAL ACADEMY PRESS WEB SITE  

EPA Science Inventory

The National Academy Press is the publisher for the National Academy of Sciences, the National Academy of Engineering, the Institute of Medicine, and the National Research Council. Through this web site, you have access to a virtual treasure trove of books, reports and publicatio...

352

PRESS RELEASE For immediate release  

E-print Network

struggling with its debt crisis, positive stories emanating from Greece are rare. However, Athens UniversityPRESS RELEASE For immediate release London, 08 November 2013 Crisis? What crisis? Athens University schools in 70 countries worldwide. As the most respected Business Leader qualification in the world (and

Chatziantoniou, Damianos

353

Prices of unhealthy foods, Food Stamp Program participation, and body weight status among U.S. low-income women†  

PubMed Central

This paper examines the interactive effect between the price of unhealthy foods and Food Stamp Program participation on body weight status among low-income women in the United States. We merged the panel data of the National Longitudinal Survey of Youth 1979 cohort in 1985–2002 and the Cost of Living Index data compiled by the American Chamber of Commerce Researchers Association by using geographic identifiers. Using the merged data, we used panel econometric models to examine the impact of unhealthy food prices on the food stamp-eligible U.S. population. Our results indicate that higher prices for unhealthy food can partially offset the positive association between Food Stamp Program participation and bodyweight among low-income women. PMID:25177147

Zhang, Qi; Chen, Zhuo; Diawara, Norou; Wang, Youfa

2014-01-01

354

7 CFR 58.421 - Press.  

...and Grading Service 1 Equipment and Utensils § 58.421 Press. The cheese press should be constructed of stainless steel and all joints welded and all surfaces, seams and openings readily cleanable. The pressure device shall be the...

2014-01-01

355

Was machen die da druben in der Numerik? Die Verbindung zur Topologie  

E-print Network

Was machen die da dr¨uben in der Numerik? Die Verbindung zur Topologie Verallgemeinerung in n-Dimensionen Anwendungsbeispiel Segmentierung Einf¨uhrung in die algorithmische Topologie Michael Moeller April 14, 2010 Michael Moeller Einf¨uhrung in die algorithmische Topologie #12;Was machen die da dr¨uben in der Numerik? Die

Löh, Clara

356

Springback Reduction in Stamping of Front Side Member with a Response Surface Method  

NASA Astrophysics Data System (ADS)

Springback is a common phenomenon in sheet metal forming since the elastic recovery of the internal stresses is induced after removal of the tooling. The numerical analysis of springback is a complicated time-consuming job and its result is greatly effected by a type of the yield function, finite elements used and the constraint condition for eliminating a rigid body motion. In this paper, optimization of the draw-bead force is carried out utilizing the response surface method in order to reduce springback and improve shape accuracy of a deep drawn product. In the optimization process, the tendency of springback is evaluated qualitatively without springback simulation usually done with the implicit solving scheme. Instead of springback simulation, the amount of stress deviation along the thickness direction in the deep drawn product is used as an indicator of springback. The stamping process is analyzed for a front side member formed with advanced high strength steel (AHSS) sheets such as DP60. The analysis procedure fully covers the binder-wrap, stamping, trimming and springback processes with the commercial elasto-plastic finite element code LS-DYNA 3D. The effect of the restraining force of draw-beads is confirmed with the decreased stress deviation. The analysis result shown in the final springback simulation demonstrates that the present analysis provides a guideline for controlling the evolution of springback based on the finite element simulation of complicated auto-body members.

Song, Jung-Han; Huh, Hoon; Kim, Se-Ho; Park, Sung-Ho

2005-08-01

357

Color separation of signature and stamp inks to facilitate handwriting examination.  

PubMed

The questioned documents laboratory often encounters cases where handwriting that is to be examined intersects with some interfering factor such as a rubber stamp, typewriting or background printing. In these cases, line direction, beginning and ending features of letters and other fine details of the handwriting may be lost in the "noise" of the intersecting ink. The purpose of this paper is to show several new digital photography methods that may be used to "subtract" the effect of the intersecting ink, thereby enhancing that of the handwriting ink in order to enable the document examiner to conduct a complete examination. These methods have the advantage of being fast and do not involve the use of expensive material or equipment. Several new methods are described that may be used to separate the colors of the handwriting ink from that of the intersecting ink: the analog method and several digital methods such as RGB-HSB-CMYK, L*a*b color, and color separation using the Channel Mixer function of Adobe Photoshop. Successful application of these color separation methods to specific handwriting ink/rubber stamp ink color combinations shows that the effect of the intersecting ink may indeed be minimalized if not canceled altogether. Application of the suggested methods may well make the difference between a nonconclusive handwriting examination and a full analysis of the questioned handwriting. PMID:14640292

Chaikovsky, Alan; Brown, Sharon; David, Laser Sin; Balman, Alex; Barzovski, Avner

2003-11-01

358

Shape optimization of three-dimensional stamped and solid automotive components  

NASA Technical Reports Server (NTRS)

The shape optimization of realistic, 3-D automotive components is discussed. The integration of the major parts of the total process: modeling, mesh generation, finite element and sensitivity analysis, and optimization are stressed. Stamped components and solid components are treated separately. For stamped parts a highly automated capability was developed. The problem description is based upon a parameterized boundary design element concept for the definition of the geometry. Automatic triangulation and adaptive mesh refinement are used to provide an automated analysis capability which requires only boundary data and takes into account sensitivity of the solution accuracy to boundary shape. For solid components a general extension of the 2-D boundary design element concept has not been achieved. In this case, the parameterized surface shape is provided using a generic modeling concept based upon isoparametric mapping patches which also serves as the mesh generator. Emphasis is placed upon the coupling of optimization with a commercially available finite element program. To do this it is necessary to modularize the program architecture and obtain shape design sensitivities using the material derivative approach so that only boundary solution data is needed.

Botkin, M. E.; Yang, R.-J.; Bennett, J. A.

1987-01-01

359

Error analysis of FLC experimental data at warm/hot stamping conditions  

NASA Astrophysics Data System (ADS)

Forming limit curves(FLCs) are commonly used for evaluating the formability of sheet metals. However, it is difficult to obtain the FLCs with desirable accuracy by experiments due to that the friction effects are non-negligible under warm/hot stamping conditions. To investigate the experimental errors, experiments for obtaining the FLCs of the AA5754 are conducted at 250°C. Then, FE models are created and validated on the basis of experimental results. A number of FE simulations are carried out for FLC test-pieces and punches with different geometry configurations and varying friction coefficients between the test-piece and the punch. The errors for all the test conditions are predicted and analyzed. Particular attention of error analysis is paid to two special cases, namely, the biaxial FLC test and the uniaxial FLC test. The failure location and the variation of the error with respect to the friction coefficient are studied as well. The results obtained from the FLC tests and the above analyses show that, for the biaxial tension state, the friction coefficient should be controlled within 0.15 to avoid significant shifting of the necking location away from the center of the punch; for the uniaxial tension state, the friction coefficient should be controlled within 0.1 to guarantee the validity of the data collected from FLC tests. The conclusions summarized are beneficial for obtaining accurate FLCs under warm/hot stamping conditions.

Zhuang, Weimin; Zhang, Mengxi; Chen, Yanhong

2014-07-01

360

Springback Reduction in Stamping of Front Side Member with a Response Surface Method  

SciTech Connect

Springback is a common phenomenon in sheet metal forming since the elastic recovery of the internal stresses is induced after removal of the tooling. The numerical analysis of springback is a complicated time-consuming job and its result is greatly effected by a type of the yield function, finite elements used and the constraint condition for eliminating a rigid body motion. In this paper, optimization of the draw-bead force is carried out utilizing the response surface method in order to reduce springback and improve shape accuracy of a deep drawn product. In the optimization process, the tendency of springback is evaluated qualitatively without springback simulation usually done with the implicit solving scheme. Instead of springback simulation, the amount of stress deviation along the thickness direction in the deep drawn product is used as an indicator of springback. The stamping process is analyzed for a front side member formed with advanced high strength steel (AHSS) sheets such as DP60. The analysis procedure fully covers the binder-wrap, stamping, trimming and springback processes with the commercial elasto-plastic finite element code LS-DYNA 3D. The effect of the restraining force of draw-beads is confirmed with the decreased stress deviation. The analysis result shown in the final springback simulation demonstrates that the present analysis provides a guideline for controlling the evolution of springback based on the finite element simulation of complicated auto-body members.

Song, Jung-Han; Huh, Hoon [Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Science Town, Daejeon, 305-701 (Korea, Republic of); Kim, Se-Ho [School of Automotive, Industry and Mechanical Engineering, Daegu University, 15 Naeri, Jillyang, Gyungsan, Gyungbuk, 712-714 (Korea, Republic of); Park, Sung-Ho [POSCO Technical Research Laboratories, 699 Cumho-dong, Gwangyang-si, Jeonnam, 545-090 (Korea, Republic of)

2005-08-05

361

High-explosives press safety shield testing  

Microsoft Academic Search

The DOE Explosives Safety Manual requires shrapnel containment testing of high explosives pressing safety shields when pressing operations present the hazard of metal fragmentation. Los Alamos National Laboratory Group M-7 tested the three types of press shields now in use. Operator protection was demonstrated in all horizontal directions. However, minor modifications are needed on two shield styles to contain some

1990-01-01

362

The Small Book Press: A Cultural Essential.  

ERIC Educational Resources Information Center

Discussion of small literary book publishers notes works of small-press authors (Thomas Paine, Washington Irving, Walt Whitman, Mark Twain, Upton Sinclair, Anais Nin); today's outstanding presses (Creative Arts Book Company, Persea Books, Full Court Press, Reed and Cannon Company, Tuumba Books); and role of little magazines. Thirty-seven…

Henderson, Bill

1984-01-01

363

College Student Press Freedom and Student Services.  

ERIC Educational Resources Information Center

Reviews court decisions affecting censorship and freedom of the student press at public and private colleges. Considers recent attempts at censorship and their outcomes. Discusses links between freedom of the press on campus and student personnel services. Outlines areas in which student personnel workers can help safeguard press freedom on…

Salazar, Pamela Reed

1986-01-01

364

How to write a press release  

NSDL National Science Digital Library

This project teaches Snow College students how to write a press release Writing a press release can be the most important skill an public releations pro cna master. Being able to write an effective press release will make you much more employable than your classmates and will help you land that big first job. Following the completion of this tutorial, students will be ...

Dart, Greg

2007-10-19

365

The Lily-White University Presses.  

ERIC Educational Resources Information Center

Argues that the university presses are immune from racial change and discusses the problem of using location as an argument for not being able to lure blacks into university publishing. Howard University Press is used to illustrate the problem of budget cutting and the ability to boost black recruitment efforts or establish a united black press

Shin, Annys

1996-01-01

366

The Burger Court and the Press.  

ERIC Educational Resources Information Center

This report discusses recent cases involving freedom of the press that have been heard before the Burger court of the United States Supreme Court. The report discerns a trend toward treating the press like an ordinary citizen; this is a reversal of the view of the Warren court that the First Amendment creates special rights for the press so that…

Higdon, Philip R.

367

DESIGN AND OPERATION OF BELT FILTER PRESSES  

EPA Science Inventory

Because early models of belt filter presses (developed from technology associated with the manufacture of paper) performed poorly, improved design and operation procedures for these presses were studied. Belt filter presses form part of a sludge dewatering system, and in terms of...

368

What Happens When Someone Dies?  

MedlinePLUS

... soon. Should there always be someone in the room with a dying person? Staying close to someone ... Order Share this: ? Table of Contents Introduction Providing Comfort at the End of Life Finding Care At ...

369

Fabrication of a metallic roll stamp with low internal stress and high hardness for large area display applications by a pulse reverse current electroforming process  

NASA Astrophysics Data System (ADS)

With the increasing demand for large scale micro/nano components in the fields of display, energy and electrical devices, etc, the establishment of a roll imprinting process has become a priority. The fabrication of a roll stamp with high dimensional accuracy and uniformity is one of the key issues in the roll imprinting process, because the roll stamp determines the properties of the replicated micro/nano structures. In this study, a method to fabricate a metallic roll stamp with low internal stress, high flatness, and high hardness was proposed by a pulse reverse current (PRC) electroforming process. The effects of PRC electroforming processes on the internal stress, hardness, and grain size of the electroformed stamp were examined, and the optimum process conditions were suggested. As a practical example of the proposed method, various micro-patterns for electronic circuits were fabricated via the roll imprinting process using a PRC electroformed stamp.

Kim, Joongeok; Han, Jungjin; Kim, Taekyung; Kang, Shinill

2014-12-01

370

Effects of applied pressure on hot-pressing of Beta-SiC  

NASA Technical Reports Server (NTRS)

The effects of applied pressure on the densification during hot pressing of beta-SiC compacts were investigated. Beta-SiC powder is Starck made and has the average particle size of about 0.7 micrometer. Hot pressing experiments were carried out in graphite dies at temperatures of 1700 deg to 2300 deg C and at the pressures up to 1000 kg/sq cm. The compacts containing 1 weight percent B4C were examined. Sintered compacts were examined for microstructure and the Rockwell A-scale hardness was measured. The B4C addition was very effective to mitigate the hot pressing conditions. It is found that densification goes with the strengthening of the bonding and does not occur in particle deformation due to concentrated stress.

Kinoshita, M.; Matsumura, H.; Iwasa, M.; Hayami, R.

1984-01-01

371

Hot isostatic pressing of ceramics  

NASA Technical Reports Server (NTRS)

A mixture containing glass 70 to 95 and BN or B4C powder (0.1-10 microns) 5 to 30 vol. % is used as a secondary pressure medium in hot isostatic pressing of ceramics. Thus, Pyrex beads were mixed with 15% vol. BN powder (average diameter 2 microns), fused at 1400 deg for 2 h, cooled, crushed, and put into a graphite crucible. A Si3N4 sintered body was embedded in the powder, heated in vacuum at 1200 deg for 2 h, treated in a hot isostatic press furnace at 1700 deg and 1000 atm. for 1 h, and cooled to give a Si3N4 ceramic. It was easily separated from the crucible.

Honma, K.

1985-01-01

372

Assessing Effects of Food Stamp Program Participation on Food Security in Female-Headed Households: Do Informal Supports Matter?  

Microsoft Academic Search

The food stamp program is one of the largest federal welfare initiatives undertaken to address the problem of hunger and nutrient intake among households in poverty. We build on previous research by examining effects of participating in the program on the food security of vulnerable households (N = 23,360), using data from the Food Security Supplement to the Current Population

Margaret Lombe; Mansoo Yu; Von E. Nebbitt

2009-01-01

373

Versatile multilevel soft lithography method with micrometer alignment using all-flexible rubber stamps and moiré fringe technique.  

PubMed

Soft lithography has gathered wide interest for the fabrication of unconventional micrometer and nanometer-sized structures and devices. Nevertheless, accurate alignment is essential to achieve multilevel soft lithography. Because of the soft nature of the stamp materials, such as soft polydimethylsiloxane, they are susceptible to mechanical distortions, which lower the registration accuracy. To reduce the distortions we backed the stamp with a polymer foil and minimized the overall forces applied to the stamp. We furthermore employed an alignment method using additive type moiré fringe technique that is easy to implement and does not require extensive processing steps. The alignment results show less than 1 ?m misalignment when the stamp is brought again onto a previously structured rigid template. When performing two consecutive lithography steps by transfer printing of thin gold films, we were able to obtain average registration accuracy of 1.3 ?m over an area of 400 mm(2). This method is versatile and can be used for several soft lithography techniques. Better results can be obtained with smaller moiré gratings and the use of harder materials. PMID:22316418

Fakhr, Omar; Karrai, Khaled; Lugli, Paolo

2012-02-28

374

The moderating effect of economic contextual factors in the relationship between Food stamp participation and adults’ body mass  

Microsoft Academic Search

This study explores the moderating effect of economic contextual factors associated with Food Stamp Program (FSP) participation and body mass index (BMI) for low socioeconomic status individuals. Understanding the relationship of FSP participation with body weight outcomes is important given that the FSP is entirely federally publicly funded and increased body weight is associated with numerous public health risks and

Euna Han; Lisa Powell

2010-01-01

375

The Effect of Food Stamp Nutrition Education on the Food Insecurity of Low-Income Women Participants  

ERIC Educational Resources Information Center

Objective: To determine the effect of Food Stamp Nutrition Education (FSNE) in Indiana on participants' food insecurity and food insufficiency. Design: A single-blind randomized design. A randomized experimental group completed 5 FSNE lessons as an intervention between a pre- and posttest, whereas a control group completed a pre- and posttest…

Eicher-Miller, Heather A.; Mason, April C.; Abbott, Angela R.; McCabe, George P.; Boushey, Carol J.

2009-01-01

376

Influence of material properties and stamping conditions on the stiffness and static dent resistance of automotive panels  

Microsoft Academic Search

The use of thinner sheets and the introduction of new materials has meant that the stiffness and dent resistance of exterior panels has become more focused in the automotive industry during the last years. The objective of this study was to investigate the influence of material choice and the effect of varying stamping process conditions on the stiffness and static

Stefan Holmberg; Per Thilderkvist

2002-01-01

377

Fabrication of Metallic Nano Stamp to Replicate Patterned Substrate Using Electron-Beam Recording, Nanoimprinting, and Electroforming  

Microsoft Academic Search

A cost-effective method to fabricate metallic nano stamp with full tracks of nano hole patterns with diameter of 30 nm and pitch of 50 nm was developed for nano replicating nano patterned substrate. Electron-beam recording (EBR) and inductively coupled plasma etching process were used in order to fabricate the original silicon master with hole patterns. Polymeric master with full tracks

Hokwan Kim; Sang Chul Shin; Jungjin Han; Jeongwon Han; Shinill Kang

2009-01-01

378

Compilation of the Food Stamp Act of 1977 and Other Selected Federal Nutrition Statutes. 98th Congress, 2d Session.  

ERIC Educational Resources Information Center

This is a compilation of the Food Stamp Act of 1977 and other selected Federal nutrition statutes, including those relating to the Act and major authorities for domestic commodity distribution. The section on the Act itself covers policy, definitions, establishment, eligibility, issuance and use of coupons, value of allotment, approval of food…

Congress of the U.S., Washington, DC. House Committee on Agriculture.

379

The Patterns of Food Stamp and WIC Participation and Their Effects on Health of Low-Income Children  

Microsoft Academic Search

The primary purpose of the paper is to examine 1) the patterns of program participation in the Food Stamp Program (FSP) and the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) during the time of welfare reform in Illinois; and 2) the effects of WIC on young children's health outcomes. The study uses a unique linked data set

Lucy Mackey-Bilaver; Robert M. Goerge; Bong Joo Lee

2000-01-01

380

Use of RSP Tooling to Manufacture Die Casting Dies  

SciTech Connect

The technology and art used to construct die casting dies has seen many improvements over the years. However, the time lag from when a design is finalized to the time a tool is in production has remained essentially the same. The two main causes for the bottleneck are the need to qualify a part design by making prototypes (usually from an alternative process), and the production tooling lead time after the prototypes are approved. Production tooling costs are high due to the labor and equipment costs associated with transforming a forged block of tool steel into a finished tool. CNC machining, sink EDM, benching, engraving and heat treatment unit operations are typically involved. As a result, there is increasing interest in rapid tooling (RT) technologies that shorten the design-to-part cycle and reduce the cost of dies. There are currently more than 20 RT methods being developed and refined around the world (1). The "rapid" in rapid tooling suggests time compression for tool delivery, but does not address robustness as nearly all RT approaches are intended for low-volume prototype work, primarily for molding plastics. Few options exist for die casting. An RT technology suitable for production-quality tooling in the time it normally takes for prototype tooling is highly desirable. In fact, there would be no need for a distinction between prototype and production tooling. True prototype parts could be made using the same processing conditions and materials intended for production. Qualification of the prototype part would allow the manufacturer to go directly into production with the same tool. A relatively new RT technology, Rapid Solidification Process (RSP) Tooling, is capable of making production-quality tooling in an RT timeframe for die casting applications. RSP Tooling, was developed at the Idaho National Engineering and Environmental Laboratory (INEEL), and commercialized with the formation of RSP Tooling, LLC (2). This paper describes the process, and summarizes properties of H13 tool steel dies.

Kevin McHugh

2004-07-01

381

Innovations in cold forging die design  

Microsoft Academic Search

The demand of the market to the major industrial cold forgers for the development and production of complicated net shape parts at fairly low unit costs requires innovative new die designs for the optimisation of die deflections. The high-stiffness STRECON® E+ containers influence the stresses, strains, and deflections in critical dies so that die lives can be improved by factors

Jens Groenbaek; Torben Birker

2000-01-01

382

Physician assisted dying and death with dignity: Missed opportunities and prior neglected conditions  

Microsoft Academic Search

This paper argues that the world-wide debate about physician assisted dying is missing a golden opportunity to focus on the\\u000a orchestration of the end of life. Such a process consists of far more than adequate pain control and is a skill which, like\\u000a all other skills, needs to be learned and taught. The debate offers an opportunity to press for

Erich H. Loewy

1999-01-01

383

Fabrication of hydrophobic inorganic coatings on natural lotus leaves for nanoimprint stamps  

E-print Network

Hydrophobic inorganic films were obtained by direct deposition of copper or silicon onto natural lotus leaves by ion beam sputtering deposition technique. Scanning electron microscopy observations showed a lotus-leaf-like surface structure of the deposited inorganic films. Hydrophobic nature of the inorganic films on lotus leaves had been improved compared to the inorganic films deposited on flat silicon substrates. Water contact angles measured on the lotus-leaf-like copper and silicon films were 136.3 \\pm 8{\\deg} and 117.8 \\pm 4.4{\\deg}, respectively. The hydrophobic lotus-leaf-like inorganic films had been repeated used as nanoimprint stamps. Negative structures of lotus-leaf-like inorganic films were obtained on the polystyrene resist layers.

Shuxi Dai; Wanyong Ding; Yang Wang; Dianbo Zhang; Zuliang Du

2011-06-11

384

Fabrication of hydrophobic inorganic coatings on natural lotus leaves for nanoimprint stamps  

E-print Network

Hydrophobic inorganic films were obtained by direct deposition of copper or silicon onto natural lotus leaves by ion beam sputtering deposition technique. Scanning electron microscopy observations showed a lotus-leaf-like surface structure of the deposited inorganic films. Hydrophobic nature of the inorganic films on lotus leaves had been improved compared to the inorganic films deposited on flat silicon substrates. Water contact angles measured on the lotus-leaf-like copper and silicon films were 136.3 \\pm 8{\\deg} and 117.8 \\pm 4.4{\\deg}, respectively. The hydrophobic lotus-leaf-like inorganic films had been repeated used as nanoimprint stamps. Negative structures of lotus-leaf-like inorganic films were obtained on the polystyrene resist layers.

Dai, Shuxi; Wang, Yang; Zhang, Dianbo; Du, Zuliang; 10.1016/j.tsf.2011.03.118

2011-01-01

385

Miniature personal electronic UVR dosimeter with erythema response and time-stamped readings in a wristwatch.  

PubMed

Personal ultraviolet radiation (UVR) dosimetry is important because sunlight is the most important risk factor for skin cancer and a risk factor for some eye diseases and immunosuppression and related disorders. Integrating devices, such as polysulphone film dosimeters, are generally used. To measure the exact dose at specific times, we have developed a personal electronic UVR dosimeter that makes time-stamped measurements. It has a sensor with an erythema action spectrum response and a linear sensitivity (dose-response) with no offset. The sensor has cosine response, and the dosimeter can cope with environmental conditions such as rain, temperature and dirt. It can be programmed to measure with different time intervals and save the average of a specified number of measurements in the memory that can store 32 000 time-stamped measurements. It is small (36 x 28 x 13 mm), weighs 14 g and can work for 4 months without maintenance. It is worn on the wrist, is equipped with a watch showing the time and may thus be used in large-scale studies. The sensitivity can change by 10% due to temperature changes from -5 to 40 degrees C. The UVR dosimeter sensitivity is 0.09 standard erythema doses (SED)/h and the difference in total received dose during 7 days between a Solar Light 501 UV-Biometer (186 SED) and our UVR dosimeter was 3% and the median difference in daily total dose was 2.2%. The dosimeter provides unique possibilities. Examples of personal UVR measurements, data calculations and how they can be interpreted are given. PMID:15850424

Heydenreich, Jakob; Wulf, Hans Christian

2005-01-01

386

Occupational disease surveillance using disability insurance at an automotive stamping and assembly complex.  

PubMed

Sickness and accident-insurance (sick leave) claims at an automotive stamping and assembly complex were analyzed using Poisson regression over a 4-year period to identify occupational health problems. The incidence of lower-respiratory disability (excluding asthma) was higher in painting operations (rate ratio [RR] = 2.9, 95% confidence interval [CI] = 1.2 to 6.8), and final assembly and processing areas (RR = 2.7, 95% CI = 1.0 to 7.4) at the assembly plant, and in metal assembly (welding) areas (RR = 2.8, 95% CI = 1.4 to 5.7) at the stamping plant. Disability rates for upper-extremity musculoskeletal disorders were statistically significantly higher (RR = 3.1 to 3.8) in major assembly plant production areas, as were back disability rates (RR = 1.5). During the first 6 months of new work assignments in painting or final assembly, respiratory problem rates were four times higher than in other areas. Upper-extremity musculoskeletal rate ratios ranged from 4.4 to 5.7 for new assignments in body, hard trim, and chassis areas. Higher rates in new assignments appeared to result from assignment changes precipitated by developing health problems, or from routine assignments to new tasks, some of which conferred high risk and were tolerated for less than 6 months. Musculoskeletal disability was consistent with known ergonomic hazards and paralleled that reported on the Occupational Safety and Health Administration log. Work-related musculoskeletal and other problems can be readily identified from disability insurance claims without dependence on plant medical visits or workers' compensation records. Disability insurance appears to absorb considerable work-related medical and absence costs. PMID:8941901

Park, R M; Krebs, J M; Mirer, F E

1996-11-01

387

Der Zeitensammler Über die Musealisierung der Lebenszeit  

Microsoft Academic Search

\\u000a Der Zeitensammler ist widerständig gegen eine Abschaffung der Zeit. Die Abschaffung der Zeit ist die Abschaffung des Allzumenschlichen,\\u000a es ist die Abschaffung der Schwäche und der Leidenschaft, die der Mensch hat, eine Schwäche und Leidenschaft zum Leben und\\u000a zur Welt, die wir seit jeher Bildung nennen. Hans Blumenberg hat trefflich das Problem der Zeit benannt. Sie ist das am meisten

Ina Katharina Uphoff; Andreas Dörpinghaus

388

Clinical management of dying patients.  

PubMed Central

Dying is universal, and death should be a peaceful time. Myriad comfort measures are available in the last weeks before life ends. Discussions about end-of-life issues often suffer from lack of informed opinion. Palliative care experts have identified specific somatic and psychological sources of distress for dying patients and their loved ones. Pain, shortness of breath, nausea and vomiting, and fear of abandonment contribute substantially to both physical and psychological discomfort toward the end of life. Simple, effective methods exist for relieving those symptoms. Knowledge about the natural events associated with dying and an informed approach to medical and psychological interventions contribute to systematic and successful comfort care. We describe the origin of physical and psychological distress at the end of life and provide strategies for alleviating many of the discomforts. PMID:7571591

Gavrin, J; Chapman, C R

1995-01-01

389

Dicing Die Attach Film for 3D Stacked Die QFN Packages  

Microsoft Academic Search

The application of die attach film (DAF) in semiconductor packaging is become wider especially in three dimensional (3D) QFN stacked die package. As wafer getting thinner until beyond 100 mum, challenges in die attach process become greater and die attach paste may not be suitable in most cases. DAF has many advantages including no die tilt, no void, consistent bond

S. Abdullah; S. Mohd Yusof; I. Ahmad; A. Jalar; R. Daud

2007-01-01

390

FAKTOREN, DIE DIE BILDUNG VON HYDROXYMETHYLFURFURAL IM HONIG  

E-print Network

/;!o/o!/? Universität Hohenheirn, D 7000 Stuttgart 70 ZUSAMMENFASSUNG Hydroxymethylfurfural (HMF) ensteht, wenn Honig erhitzt oder in warmen Räumen gelagert wird. Hohe HMF-Werte zeigen unerwünschte Reaktionen im Honig geben höchstzulässige Werte für HMF an. Es ist daher von praktischem Interesse, die Faktoren (p

Paris-Sud XI, Université de

391

Racing Game with One Die  

NSDL National Science Digital Library

In this activity, students roll a die that will advance either a blue or red car in a race to the finish. Students can adjust which numbers on the die make each car move, changing the probability that each car will win. This activity allows students to explore experimental and theoretical probability by running multiple races at once and examining how often each car wins and comparing that to how often each car is expected to win. 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

392

Die erweiterte, radikale perineale Prostatektomie  

Microsoft Academic Search

Zusammenfassung  \\u000a 125 konsekutive Patienten mit Adenokarzinom der Prostata wurden einer erweiterten radikalen perinealen Prostatektomie entsprechend\\u000a der Technik von Weldon unterzogen. Diese Technik wurde durch die primäre komplette Mobilisation der Prostatahinterfläche und\\u000a der Samenblasen, der Inzision der Faszia endopelvina, der queren Inzision der Denonvillier-Faszia am Apex und der partiellen\\u000a Durchtrennung des dorsalen Venenkomplexes nach vorangegangener Durchstechungsligatur modifiziert.\\u000a \\u000a \\u000a \\u000a Die perioperative Morbidität war

G. Jakse; E. Manegold; T. Reineke; H. Borchers; B. Brehmer; J. M. Wolff; C. Mittermeyer

2000-01-01

393

Fabrication process analysis and experimental verification for aluminum bipolar plates in fuel cells by vacuum die-casting  

NASA Astrophysics Data System (ADS)

There are various methods for the fabrication of bipolar plates, but these are still limited to machining and stamping processes. High-pressure die casting (HPDC) is an ideal process for the manufacture of bipolar plates This study aims to investigate the formability of bipolar plates for polymer electrolyte membrane fuel cells (PEMFCs) fabricated by vacuum HPDC of an Al-Mg alloy (ALDC6). The cavity of the mold consisted of a thin-walled plate (200 mm × 200 mm × 0.8 mm) with a layer of serpentine channel (50 mm × 50 mm). The location and direction of the channel in the final mold design was determined by computational simulation (MAGMA soft). In addition, simulation results for different conditions of plunger stroke control were compared to those from actual die-casting experiments. Under a vacuum pressure of 35 kPa and for injection speeds of 0.3 and 2.5 m s-1 in the low and high speed regions, respectively, the samples had few casting defects. In addition, the hardness was higher and porosity in microstructure was less than those of the samples made under other injection speed conditions. In case of thin-walled plates, vacuum die casting is beneficial in terms of formability compared to conventional die casting.

Jin, Chul Kyu; Kang, Chung Gil

2011-10-01

394

Slurry-pressing consolidation of silicon nitride  

NASA Technical Reports Server (NTRS)

A baseline slurry-pressing method for a silicon nitride material is developed. The Si3N4 composition contained 5.8 wt percent SiO2 and 6.4 wt percent Y2O3. Slurry-pressing variables included volume percent solids, application of ultrasonic energy, and pH. Twenty vol percent slurry-pressed material was approximately 11 percent stronger than both 30 vol percent slurry-pressed and dry-pressed materials. The Student's t-test showed the difference to be significant at the 99 percent confidence level. Twenty volume percent (300 h) slurry-pressed test bars exhibited strengths as high as 980 MPa. Large, columnar beta-Si3N4 grains caused failure in the highest strength specimens. The improved strength correlated with better structural uniformity as determined by radiography, optical microscopy, and image analysis.

Sanders, William A.; Kiser, James D.; Freedman, Marc R.

1988-01-01

395

Freedom House: Press Freedom Survey 2000  

NSDL National Science Digital Library

Published by Freedom House, a non-partisan advocacy organization for democracy and human rights worldwide founded by Eleanor Roosevelt, Wendell Willkie, and others, the 2000 edition of the Press Freedom Survey offers a "country-by-country worldwide assessment of press freedom." This year's study, which examines freedom of the press in 186 countries, pays special attention to government restrictions on Internet access. It finds that "nearly two-thirds of countries, accounting for 80 percent of the world's population, restrict press freedom." Users can download the full text of the 36-page report in .pdf format or view the country reports, methodology, and tables and charts in HTML format.

396

Universitt Zrich Dies academicus 2010  

E-print Network

virale Erreger untersucht werden können. Mit diesem Labor ­ es kostete 25 Millionen Franken ­ haben der Beispiel das Ebola-Virus oder Pockenviren, zu diagnostizieren. (4) Im Jahr 2008 wurde die UZH 175-jährig

Zürich, Universität

397

Robert Merton Dies at 92  

ERIC Educational Resources Information Center

This article features Robert Merton, who died recently at age 92. Merton came into this world as a Jewish baby named Meyer Schkolnick. He lived in South Philly where his parents wrenched a living as blue-collar workers. Merton chose an Anglicized name to move into the Yankee dominated America of the 20's and 30's. At Harvard, he studied under…

Snell, Joel C.

2006-01-01

398

Former Supreme Court Justice Henry Blackman Dies  

NSDL National Science Digital Library

This week's In the News looks back at the life and legal legacy of former US Supreme Court Associate Justice Harry Andrew Blackmun, who died last Thursday at the age of 90, five years after a contentious 24-year tenure with the court. Raised in Minnesota and educated at Harvard University, Blackmun served as a judge in the US Court of Appeals for the 8th Circuit before being appointed to the Supreme Court by President Nixon in 1970. Blackmun entered the court as a moderate conservative, but by the end of his long career, his convictions had shifted, and he became regarded as a strong progressive voice championing civil and personal liberties. Blackmun claimed that his ideologies did not change over the course of his career and that his apparent leftward shift was a reflection of the court's transformation to conservatism between 1969 and 1991. During that time period, nine conservative Republican appointees entered the court, replacing several liberal justices and altering the court's composition. Yet despite his self-proclaimed moderate views, Blackmun will be remembered for his liberal jurisprudence, most notably demonstrated in the landmark 50-page majority opinion that he authored in 1973 in the case of Roe v. Wade, which established the constitutional right to abortion. In other important Supreme Court opinions, Blackmun provided a liberal voice as an advocate of free speech, affirmative action, gay rights, and women's rights as well as an opponent of capital punishment. In an interview with The Associated Press after his retirement, Justice Blackmun, who was considered to be a diligent and unassuming man, understated his legal legacy: "I hope I would be remembered as a person of judicial integrity . . . known just as a good worker . . . who held his own and contributed generally to the advancement of the law." The nine resources discussed provide recent news, Supreme Court history, and the full text of related legal documents.

Osmond, Andrew.

399

A comparison of impulse drying to double felted pressing on pilot- scale shoe presses and roll presses. Progress report, No. 6  

SciTech Connect

Pilot-scale shoe press and roll press experiments have been conducted to compare impulse drying and double felted pressing. Both ceramic coated and Beloit Type C press rolls have been evaluated. The experiments show that impulse drying can provide significantly higher outgoing solids than double felled pressing at the same impulse. For example, at an impulse of 0.234 MPa seconds (34 psi seconds), sheets at an ingoing solids of 52% were impulse dried (using the Beloit Type C press roll) to 68% solids while optimized double felled pressing could only yield press dryness of, at most, 60%.

Orloff, D.I.

1992-08-01

400

Exploratory study on H13 steel dies  

SciTech Connect

Ultrahigh-strength H13 steel is a recommended die material for aluminum die casting; dies made from H13 steel can be safely water- cooled during hot working operations without cracking. However, after time the dies exhibited surface cracking and excessive wear. Erosive wear also occurs owing to high pressure injection of molten Al. An exploratory study was made of the causes for surface cracking of H13 dies. Results suggest that surface cracking is caused by interrelated factors, internal to the die material as well as externally induced conditions.

Sunwoo, A.J.

1994-04-01

401

Near-net-shape forming of alumina powder under hot pressing and hot isostatic pressing  

Microsoft Academic Search

Densification and deformation of alumina powder under hot pressing and hot isostatic pressing were investigated. Finite element calculations were performed by implementing constitutive equations for grain growth, power law creep and diffusional creep in the user defined subroutine CREEP of ABAQUS. An alumina compact of valve head shape was produced under hot pressing and its forming process was predicted by

K. T. Kim; Y. S. Kwon; H. G. Kim

1997-01-01

402

Linkping University Electronic Press Publication Conditions at Linkping University Electronic Press  

E-print Network

unlimited copying and redistribution of work that is published at LiU E-Press. Ethical Considerations All been licensed for this purpose by LiU E-Press, and containing adequate hardware and software making the Author grants to LiU E-Press the nonexclusive royalty-free right to publish the Work on one or more

Zhao, Yuxiao

403

Non-isothermal analysis of die corner gap formation for materials deformed by multi-pass ECAP  

NASA Astrophysics Data System (ADS)

In this paper, the upper-bound solutions proposed by Eivani and Karimi Taheri [Comp. Mater. Sci. 42 (2008) 14] to calculate processing force and evaluate die corner angle ? formation in terms of tribology and die configurations during cold single pass equal channels angular pressed metals with constant flow stress were extended to work-hardening metals processed by two passes according to route A by using the Swift model combined to von Mises isotropic plasticity criterion. Also, adiabatic heat equation was coupled to solutions to express the final temperature of the workpiece. For that, thermomechanical properties of a hot-dip galvanized interstitial-free (IF) were considered and its behavior under pressing was evaluated to non-hardening and work-hardening conditions in all performed analyses. By including work-hardening in the models and for the critical friction factor of 0.4, theoretical predictions after single pass showed a decreasing of die corner angle and pressing force predictions and increasing of effective plastic strain and end temperature for all friction conditions and tooling geometries evaluated. In addition, after second pass, these responses showed higher values. Finally, with the proposed upper-bound models it was possible to analyze the dependency of angle ?, effective plastic strain, pressing load and sample temperature with the instantaneous workpiece height at the entry surface of deformation zone.

Medeiros, N.; Moreira, L. P.

2014-08-01

404

An analysis of the Supramolecular NanoStamping technology for its market potential based upon a review of DNA microarray intellectual property  

E-print Network

Supramolecular NanoStamping is a novel printing method for exploiting the supramolecular interactions between organic and biological molecules. This technology is advantageous because of the ability to transfer a massive ...

Li, Kathy H. (Kathy Hsinjung)

2006-01-01

405

Enhanced adhesion with pedestal-shaped elastomeric stamps for transfer Seok Kim, Andrew Carlson, Huanyu Cheng, Seungwoo Lee, Jung-Ki Park et al.  

E-print Network

Carlson, Huanyu Cheng, Seungwoo Lee, Jung-Ki Park et al. Citation: Appl. Phys. Lett. 100, 171909 (2012 stamps for transfer printing Seok Kim,1,a) Andrew Carlson,1,a) Huanyu Cheng,2 Seungwoo Lee,3 Jung-Ki Park

Rogers, John A.

406

The thermal fatigue resistance of H-13 Die Steel for aluminum die casting dies  

NASA Technical Reports Server (NTRS)

The effects of welding, five selected surface coatings, and stress relieving on the thermal fatigue resistance of H-13 Die Steel for aluminum die casting dies were studied using eleven thermal fatigue specimens. Stress relieving was conducted after each 5,000 cycle interval at 1050 F for three hours. Four thermal fatigue specimens were welded with H-13 or maraging steel welding rods at ambient and elevated temperatures and subsequently, subjected to different post-weld heat treatments. Crack patterns were examined at 5,000, 10,000, and 15,000 cycles. The thermal fatigue resistance is expressed by two crack parameters which are the average maximum crack and the average cracked area. The results indicate that a significant improvement in thermal fatigue resistance over the control was obtained from the stress-relieving treatment. Small improvements were obtained from the H-13 welded specimens and from a salt bath nitrogen and carbon-surface treatment. The other surface treatments and welded specimens either did not affect or had a detrimental influence on the thermal fatigue properties of the H-13 die steel.

1982-01-01

407

Über die Emissionsspektren der Zinksulfidphosphore sowie über die Wirkung von Cadmiumsulfid auf die Emission der Zinksulfid- und Erdalkalisulfidphosphore  

Microsoft Academic Search

Zusammenfassung Es werden die Schwerpunkte der in den Emissionsspektren verschiedener Zn S-Phosphore auftretenden Banden bestimmt und untersucht, wie die einzelnen Banden der Gegenwart bestimmter Fremdmetalle oder dem Eigenleuchten des Grundmaterials zuzuordnen sind. Die bei Zusatz von CdS eintretende Verschiebung der Bandenschwerpunkte wird an einer Reihe von Phosphoren mit zunehmendem CdS-Gehalt untersucht und gezeigt, daß die Lage der Maxima mit dem

Siegfried Rothschild

1938-01-01

408

CSA/ASC Press Briefing  

NASA Technical Reports Server (NTRS)

Nicole Gignac, Senior Communications Advisor Canadian Space Agency (CSA), introduces the panel for this CSA/ASC press briefing. The panel consist of: Dr. Steve Maclean, CSA astronaut; Dr. Paul Cooper, Deputy General Manager, MacDonald, Dettwiler and Associates Ltd. (MDA); and Dr. Iain Christie, Director of Research and Development from NEPTEC. Maclean will fly on the STS-115 Mission in February of 2006. He presents pictures and talks about the crewmembers of the Space Shuttle Columbia and Space Shuttle Discovery. Maclean also discusses entry risks as it pertains to the leading edge wing of Discovery. Paul Cooper explains and shows a video presentation of Canadarm robotics. The briefing ends with Dr Christie explaining the sensitive three dimensional inspections are performed in space that looks for cracks in the leading edge wing of the Space Shuttle Discovery.

2005-01-01

409

Evaluating the aluminum content of pressed dross  

NASA Astrophysics Data System (ADS)

Pressing of skimmed hot drosses in a press is a very popular technology for cooling hot dross and obtaining the maximum in-house recovery of aluminum alloy. As a result of the pressing action, part of the molten aluminum alloy is squeezed out, while the rest of the free metal remains in the pressed skulls. Thus, pressed skulls are a valuable waste product, consisting of 30 70 wt.% free aluminum. Other constituents are aluminum oxide and oxides of alloying metals. Pressed skulls are generally valued on a free-metal recovery basis, which necessarily involves practical determination of their free aluminum content. Because most analytical methods are limited to the laboratory level and representative sub-samples, there is a practical interest in developing a routine, cost-effective, and non-destructive method to predict the free aluminum content in entire pressed skulls, based on their density. To develop such a method, a relation between the bulk density, porosity, and free aluminum content of pressed skulls was established. This article offers a review of those experiments and an analysis of their results.

Kevorkijan, V.

2002-02-01

410

Free Press & Fair Trial. Revised Edition.  

ERIC Educational Resources Information Center

In relation to law enforcement and the courts, the press serves to inform the public about crimes and how government institutions deal with them. The press also plays a crucial role in assuring that the rights of individuals guaranteed by the Sixth Amendment are protected. The issue of prejudice, caused by news coverage of crime and criminal…

American Newspaper Publishers Association Foundation, Washington, DC.

411

Catalogue2012 ANU E Press 1  

E-print Network

commercial audience; · demolish barriers to entry for developing fields of research that might struggle as a commercial publisher, so authors that publish through ANU E Press gain full recognition under the Higher Education Research Data Collection scheme. As ANU generates more and more original research, E Press fulfils

Botea, Adi

412

Mathematical Sciences press.princeton.edu  

E-print Network

listing of all books in this series, please check our Web site: press.princeton.edu/math. Forthcoming Introduction to Ramsey Spaces Stevo Todorcevic Ramsey theory is a fast-growing area of combinatorics with deep. For more information, please visit our Web site at press.princeton.edu. Cover images courtesy

Landweber, Laura

413

Linkping University Electronic Press Linkping University  

E-print Network

for the electronic publication of Ph.D. and Licentiate theses, a thesis is officially published prior to beingLinköping University Electronic Press Address Linköping University Electronic Press Linköping: in the case in which a thesis is failed after it has been electronically published, a note will be added

Zhao, Yuxiao

414

Fracture toughness of hot-pressed beryllium  

NASA Technical Reports Server (NTRS)

This paper presents the results of an investigation into the fracture toughness, sustained-load flaw growth, and fatigue-crack propagation resistance of S200E hot-pressed beryllium at room temperature. It also reviews the literature pertaining to the influence of various factors on the fracture toughness of hot-pressed beryllium determined using fatigue-cracked specimens.

Lemon, D. D.; Brown, W. F., Jr.

1985-01-01

415

[The press and family planning].  

PubMed

The treatment in the press of family planning hinges on two fundamental factors: the taboo of the leftist groups and the taboo of the Catholic Church, whose head is against abortion under any circumstances. Leftist views insinuate that family planning is the genocidal plan of North American imperialists against the Third World and, in particular, against Latin America. This genocidal plan is supposed to subject poor populations to international schemes. In the press family planning is often treated in a sanctimonious fashion, lumping it together with topics like pornography, sex, and violence. In 1983 the daily newspaper Expreso published a supplement running every week for almost three months about the issue of population, which dealt fairly extensively with such topics as population and housing, education, employment, and urban proliferation, as well as responsible parenthood and child survival. In addition, there was a detailed description of contraceptive methods. In October 1986 another surprising thing happened: the President of Peru talked about the topic of family planning, which at the time was an act of courage. Since then much has changed; the whole world is interested in family planning and certain aspects of population. Since October 1986 more has been published in this domain than during the preceding 20 years. In contrast, the Church reacted differently to this issue: after some initial caution, the conference of Peruvian bishops attacked all methods of modern contraceptives and private institutions of family planning. The information boom in family planning will certainly continue. At the moment this flood of articles and editorials about the issue is an expression of the anxiety of families related to uncontrolled reproduction and the fear of overpopulation in large cities devoid of minimal services. PMID:12281466

Abraham De D'ornellas, R

1987-01-01

416

Die Finite Elemente Methode fr partielle Differentialgleichungen  

E-print Network

Die Finite Elemente Methode für partielle Differentialgleichungen Thomas Richter thomas . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 3 Die Finite Elemente Methode für elliptische Probleme 47 3.1 Allgemeine Galerkin . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 3.2 Finite Elemente Methode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 3

Richter, Thomas

417

Attacks on the Press in 2001  

NSDL National Science Digital Library

Released by the Committee to Protect Journalists (CPJ), a nonpartisan, nonprofit organization established to "monitor abuses against the press and promote press freedom around the world," Attacks on the Press 2001 documents the deaths, imprisonment, and abuses of journalists around the world within the past year. Prefaced by CPJ board member Anne Garrels with an introduction by CPJ's executive director Ann Cooper, the report contains an overview of media attacks arranged by country, along with three special press freedom reports on Syria, Burma, and Colombia. In addition, the report contains a Ten Worst Enemies of the Press section that focuses attention on individual leaders responsible for the world's worst abuses against the media. Topping the list are Supreme Leader Ayatollah Ali Khamenei of Iran, President Jiang Zemin of China, and Liberian president Charles Taylor.

2002-01-01

418

Long-Term Food Stamp Program Participation is Differentially Related to Overweight in Young Girls and Boys1,2  

Microsoft Academic Search

This paper examines the relation between long-term Food Stamp Program (FSP) participation and overweight in children using data on children from the National Longitudinal Survey of Youth 1979 Child Sample. A child was categorized as overweight if his or her BMI was the 95th percentile of sex- and age-specific BMI. The data were arranged as a panel with multiple observations

Diane Gibson

419

Food Stamp Leavers in Illinois: How Are They Doing Two Years Later? Princeton, NJ: Mathematica Policy Research  

Microsoft Academic Search

In light of sharp declines in the Food Stamp Program caseload, examines the well-being of those who have left the program. Notes that about half of those who exited in 1997 were employed two years later, while more than half had incomes below the poverty line. Also notes food insecurity with hunger evident among one-fourth of leavers. Able-bodied adults without

Anu Rangarajan; Philip M. Gleason

2001-01-01

420

Should assisted dying be legalised?  

PubMed

When an individual facing intractable pain is given an estimate of a few months to live, does hastening death become a viable and legitimate alternative for willing patients? Has the time come for physicians to do away with the traditional notion of healthcare as maintaining or improving physical and mental health, and instead accept their own limitations by facilitating death when requested? The Universities of Oxford and Cambridge held the 2013 Varsity Medical Debate on the motion "This House Would Legalise Assisted Dying". This article summarises the key arguments developed over the course of the debate. We will explore how assisted dying can affect both the patient and doctor; the nature of consent and limits of autonomy; the effects on society; the viability of a proposed model; and, perhaps most importantly, the potential need for the practice within our current medico-legal framework. PMID:24423249

Frost, Thomas D G; Sinha, Devan; Gilbert, Barnabas J

2014-01-01

421

[Why do Ibsen's children die?].  

PubMed

Death of children is a remarkably frequent theme in Henrik Ibsen's writings and may be a key to understanding of his work. In this paper I refer to writings where children die, and I analyze case histories and question of causes. The medical courses are very diverse. In his earliest works, some children die by starvation. In our time we tend to forget the enormous child mortality rate in Norway during the mid 1800s. In his contemporary dramas, the causes of death are often complex. Even though he uses symbols, there are elements that are medically reasonable. He rarely makes mistakes in a medical context. A common feature in these tragic child destinies is that the poet shows us inadequate and poor parents. PMID:19092964

Vesterhus, Per

2008-12-18

422

[Dying with cancer: Hollywood lessons].  

PubMed

The study attempts to understand how dying from cancer is portrayed by five movies produced in Hollywood between 1993 and 2006. Based on the cultural studies and their post-structuralism version and supported by the notions of discourse and subjectivity, as proposed by philosopher Michel Foucault, we suggest one of the possible readings of the movie picture corpus. We assess how the movie picture discourse acts as a cultural pedagogy that produces ways of seeing dying with cancer: immortalizing the healthy body image, silencing death, taking care of the dead body and, finally, accepting death. Our proposal is intended to stimulate reflections that may contribute to care and education in nursing. PMID:25080714

Niemeyer, Fernanda; Kruse, Maria Henriqueta Luce

2013-12-01

423

Should assisted dying be legalised?  

PubMed Central

When an individual facing intractable pain is given an estimate of a few months to live, does hastening death become a viable and legitimate alternative for willing patients? Has the time come for physicians to do away with the traditional notion of healthcare as maintaining or improving physical and mental health, and instead accept their own limitations by facilitating death when requested? The Universities of Oxford and Cambridge held the 2013 Varsity Medical Debate on the motion “This House Would Legalise Assisted Dying”. This article summarises the key arguments developed over the course of the debate. We will explore how assisted dying can affect both the patient and doctor; the nature of consent and limits of autonomy; the effects on society; the viability of a proposed model; and, perhaps most importantly, the potential need for the practice within our current medico-legal framework. PMID:24423249

2014-01-01

424

Einleitung: Die gesellschaftliche Verantwortung der Wirtschaft  

Microsoft Academic Search

In den letzten Jahren ist die gesellschaftliche Verantwortung der Wirtschaft, insbesondere der Mächtigen in der Wirtschaft,\\u000a zunehmend zum Thema einer breiten öffentlichen Debatte geworden. Dazu haben nicht nur die aus den angelsächsischen Ländern\\u000a nach Deutschland geschwappten Diskussionen um Corporate Citizenship und Corporate Social Responsibility oder die Sozialberichterstattung von deutschen Unternehmen beigetragen, sondern zunächst die Wirtschaft und ihr Handeln selbst.\\u000a Angesichts

Christian Galonska; Peter Imbusch; Dieter Rucht

425

Auswahl der Medizinstudenten durch die medizinischen Fakultäten  

Microsoft Academic Search

Zusammenfassung  Mit der Novellierung des Hochschulrahmengesetzes (HRG) im Sommer 2004 wurde festgelegt, dass die Hochschulen der BRD 60% der Studierenden in den Numerus-clausus-Fächern aus den Bewerbern selbst auszuwählen haben. Diese Vorgabe entspringt der politischen Absicht, die Profilbildung und den Wettbewerb unter den Hochschulen zu fördern. Die erste Umsetzung der gesetzlichen Vorgaben zeigt, dass die Hochschulen noch wenig vorbereitet waren, zusätzliche Auswahlkriterien

B. Strauß

2006-01-01

426

Investigation of the Phase Formation of AlSi-Coatings for Hot Stamping of Boron Alloyed Steel  

SciTech Connect

Hot stamping of boron alloyed steel is gaining more and more importance for the production of high strength automotive body parts. Within hot stamping of quenchenable steels the blank is heated up to austenitization temperature, transferred to the tool, formed rapidly and quenched in the cooled tool. To avoid scale formation during the heating process of the blank, the sheet metal can be coated with an aluminium-silicum alloy. The meltimg temperature of this coating is below the austenitization temperature of the base material. This means, that a diffusion process between base material and coating has to take place during heating, leading to a higher melting temperature of the coating.In conventional heating devices, like roller hearth furnaces, the diffusion process is reached by relatively low heating rates. New technologies, like induction heating, reach very high heating rates and offer great potentials for the application in hot stamping. Till now it is not proofed, that this technology can be used with aluminum-silicon coated materials. This paper will present the results of comparative heating tests with a conventional furnace and an induction heating device. For different time/temperature-conditions the phase formation within the coating will be described.

Veit, R.; Kolleck, R. [Graz University of Technology, Institute Tools and Forming, Inffeldgasse 11, 8010 Graz (Austria); Hofmann, H.; Sikora, S. [ThyssenKrupp Steel Europe AG, Eberhardstrasse 12, 44145 Dortmund (Germany)

2011-01-17

427

Die Welt des Herrn Kuhn  

NASA Astrophysics Data System (ADS)

Eines Morgens erwachte Herr Kuhn fröstelnd und staunte darüber, dass es in seinerWohnung eiskalt war. Dennoch quälte er sich aus seiner kuscheligen Bettdecke heraus und schlurfte ins Bad. "Hoffentlich wird wenigstens das Wasser warm", dachte er sich, als er den Wasserhahn betätigte - aber es kam nicht nur kein warmesWasser, außer einem unheilvollen Gluckser kam gar nichts aus der Leitung. "Dann werde ich wohl mal den Klempner anrufen", sprach er sich leise in den Bart und griff zu seinem Handy - doch das Netz war tot! Herr Kuhn begann nun, sich ernsthaft Sorgen zu machen, "Oje, was ist denn heute nur los? Ist irgendetwas Schlimmes passiert?" Um einen besseren Überblick über die Lage zu bekommen und sich austauschen zu können, brannte er nun förmlich darauf, rauszugehen und zur Arbeit zu fahren. An anderen Tagen, die er frisch geduscht und mit Kaffee und Marmeladen-Brot begann, war er selten so motiviert. So ging er also nun mit leerem Magen aus dem Haus. Hätte er den Versuch unternommen, sein tägliches Marmeladenbrot zuzubereiten, und dafür den Kühlschrank geöffnet, um das Marmeladenglas herauszunehmen, wäre ihm aufgefallen, dass auch die Stromversorgung Störungen unterworfen war, unschön zu erkennen an den ersten grünen, felligen Inseln auf seinem Lieblingskäse.

Kern, Daniela

428

Adolescents’ Perceived Risk of Dying  

PubMed Central

Purpose Although adolescents’ expectations are accurate or moderately optimistic for many significant life events, they greatly overestimate their chances of dying soon. We examine here whether adolescents’ mortality judgments are correlated with their perceptions of direct threats to their survival. Such sensitivity would indicate the importance of ensuring that adolescents have accurate information about those threats, as well as the psychological support needed to deal with them. Methods Data from two separate studies were used: a national study of 3,436 14–18 year old adolescents and a regional sample of 124 7th graders and 132 9th graders, 12–16 years old. Participants were asked about their chance of dying in the next year and before age 20, and about the extent of various threats to their physical well being. Results Adolescents in both samples greatly overestimated their chance of dying. Those mortality estimates were higher for adolescents who reported direct threats (e.g., an unsafe neighborhood). Thus, adolescents were sensitive to the relative size of threats to their survival, but not to the implications for absolute risk levels. Conclusions Contrary to the folk wisdom that adolescents have a unique sense of invulnerability, those studied here reported an exaggerated sense of mortality, which was highest among those reporting greater threats in their lives. Such fears could affect adolescents’ short-term well being and future planning. PMID:20159504

Fischhoff, Baruch; de Bruin, Wändi Bruine; Parker, Andrew M.; Millstein, Susan G.; Halpern-Felsher, Bonnie L.

2009-01-01

429

Die Zwischenwirte Von Davainea Proglottina (Cestoidea)  

Microsoft Academic Search

Mehreren tausend Nackt- und Gehäuseschnecken, die zu 17 Arten gehören, wurden Proglottiden von Davainea proglottina verabreicht. Aus der Empfänglichkeit, Häufigkeit des Auftretens und der Lebensweise der geprüften Schneckenarten ergibt sich, daß nur die Limacidae und hier wiederum die Derocerasarten eine Rolle als Zwischenwirte dieses Bandwurmes spielen. Aus dieser Familie wurden von uns zum ersten Mal folgende Arten als Zwischenwirte festgestellt:

K. Enigk; E. Sticinsky; H. Ergün

1958-01-01

430

Physikgeschichte Die Anfänge des Physik-Nobelpreises  

NASA Astrophysics Data System (ADS)

Durch Absorption von zwei Laserstrahlen mit unterschiedlichen Wellenlängen können in Halbleitern makroskopische Ströme erzeugt werden. Die Ausbreitungsrichtung der Elektronen und insbesondere die Ausrichtung ihrer Spins lassen sich über die relative Phase der beiden Laserfelder kohärent kontrollieren, wie kürzlich zwei Gruppen an den Universitäten von Marburg und Iowa demonstrierten [1, 2]. Genutzt wird bei diesem Experiment der Effekt der Quanteninterferenz zur Erzeugung von elektrischen Spinströmen.

Jacobi, Manfred

2003-09-01

431

in die Forschung Mitteilungen der Universitt Bayreuth  

E-print Network

Schmidt, Leiter der Abteilung Sportmedizin und Sport- physiologie an der Universität Bayreuth, und seine für die Zeitschrift ,,Exercise and Sports Sciences Reviews" geben sie einen �berblick über die Ausdauertraining bis zum Doping ­ wie sich die maximale Sauerstoffaufnahme steigern lässt Grundsätzlich

Ullmann, G. Matthias

432

Die neuen Regelungen in der gesetzlichen Unfallversicherung  

Microsoft Academic Search

Zusammenfassung Mit Wirkung ab 1.1.1997 ist das Recht der gesetzlichen Unfallversicherung in das Sozialgesetzbuch (SGB VII) übernommen worden. Da mit dem SGB VII die maßgeblichen Bestimmungen des früheren Reichsversicherungsamts zum Durchgangsarzt- und Verletzungsartenverfahren weggefallen sind, mußte mit § 34 SGB VII die Ermächtigung der Unfallversicherungsträger für die Durchführung der Heilbehandlung neu und eindeutig geregelt werden. Grundlage des berufsgenossenschaftlichen Heilverfahrens soll

Rolf Drewes

1999-01-01

433

Die Treffsicherheit von Auswahlkriterien für einen hypothetischen \\  

Microsoft Academic Search

Zusammenfassung Auf der Grundlage einer prospektiven Studie zu den Faktoren des Studienerfolgs im Medizinstudium wurden Auswahlkriterien im Sinne eines hypothetischen Numerus clausus anhand der Schulleistungen berechnet. Es wurden die Noten in Mathematik, Englisch, Physik, Chemie und die Anzahl der Klassenwiederholungen erhoben. Mittels Diskriminanzanalysen wurden unterschiedliche Modelle eines NC errechnet. Die Einbeziehung aller erhobenen Schulnoten ergab eine gute Treff- sicherheit. Den

Lukas MITTERAUER; Gerald HAIDINGER; Oskar FRISCHENSCHLAGER

434

Die Kommerzialisierung des Kinderfernsehens unter besonderer Berücksichtigung des Merchandising.  

E-print Network

??Die vorliegende Arbeit thematisiert die Kommerzialisierungsentwicklungen im Kinderfernsehprogramm im deutschsprachigen Raum unter besonderer Berücksichtigung der Praxis des Merchandising. Die Beobachtung, dass uns Figuren aus dem… (more)

Nigl, Andrea

2009-01-01

435

Friction Stir Spot Welding of DP780 and Hot-Stamp Boron Steels  

SciTech Connect

Friction stir spot welds were made in two high-strength steels: DP780, and a hot-stamp-boron steel with tensile strength of 1500 MPa. The spot welds were made at either 800 or 1600 rpm using either of two polycrystalline boron nitride tools. One stir tool, BN77, had the relatively common pin-tool shape. The second tool, BN46, had a convex rather than a concave shoulder profile and a much wider and shorter pin. The tools were plunged to preprogrammed depths either at a continuous rate (1-step schedule) or in two segments consisting of a relatively high rate followed by a slower rate. In all cases, the welds were completed in 4s. The range of lap-shear values were compared to values required for resistance spot welds on the same steels. The minimum value of 10.3 kN was exceeded for friction stir spot welding of DP780 using a 2-step schedule and either the BN77- or the BN46-type stir tool. The respective minimum value of 12 kN was also exceeded for the HSB steel using the 2-step process and the BN46 stir tool.

Santella, Michael L.; Frederick, Alan; Hovanski, Yuri; Grant, Glenn J.

2008-05-16

436

Friction Stir Spot Welding of DP780 and Hot-Stamp Boron Steels  

SciTech Connect

Friction stir spot welds were made in two high-strength steels: DP780, and a hot-stamp-boron steel with tensile strength of 1500 MPa. The spot welds were made at either 800 or 1600 rpm using either of two polycrystalline boron nitride tools. One stir tool, BN77, had the relatively common pin-tool shape. The second tool, BN46, had a convex rather than a concave shoulder profile and a much wider and shorter pin. The tools were plunged to preprogrammed depths either at a continuous rate (1-step schedule) or in two segments consisting of a relatively high rate followed by a slower rate. In all cases, the welds were completed in 4s. The range of lap-shear values were compared to values required for resistance spot welds on the same steels. The minimum value of 10.3 kN was exceeded for friction stir spot welding of DP780 using a 2-step schedule and either the BN77- or the BN46-type stir tool. The respective minimum value of 12 kN was also exceeded for the HSB steel using the 2-step process and the BN46 stir tool.

Santella, Michael L [ORNL; Frederick, David Alan [ORNL; Hovanski, Yuri [ORNL; Grant, Glenn J [ORNL

2008-01-01

437

Postage stamp-sized array sensor for the sensitive screening test of heavy-metal ions.  

PubMed

The sensitive determination of heavy-metal ions has been widely investigated in recent years due to their threat to the environment and to human health. Among various analytical detection techniques, inexpensive colorimetric testing papers/strips play a very important role. The limitation, however, is also clear: the sensitivity is usually low and the selectivity is poor. In this work, we have developed a postage stamp-sized array sensor composed of nine commercially available heterocyclic azo indicators. Combining filtration-based enrichment with an array of technologies-based pattern-recognition, we have obtained the discrimination capability for seven heavy-metal ions (Hg(2+), Pb(2+), Ag(+), Ni(2+), Cu(2+), Zn(2+), and Co(2+)) at their Chinese wastewater discharge standard concentrations. The allowable detection level of Hg(2+) was down to 0.05 mg L(-1). The heavy-metal ions screening test was readily achieved using a standard chemometric approach. And the array sensor applied well in real water samples. PMID:25068762

Zhang, Yu; Li, Xiao; Li, Hui; Song, Ming; Feng, Liang; Guan, Yafeng

2014-10-01

438

Anisotropic and Mechanical Behavior of 22MnB5 in Hot Stamping Operations  

SciTech Connect

The hot stamping of quenchable High Strength Steels offers the possibility of weight reduction in structural components maintaining the safety requirements together with enhanced accuracy and formability of sheets. The proper design of this technology requires a deep understanding of material behavior during the entire process chain, in terms of microstructural evolution and mechanical properties at elevated temperatures, in order to perform reliable FE simulations and obtain the desired characteristic on final parts. In particular, the analysis of technical-scientific literature shows that accurate data on material rheological behavior are difficult to find; while the lack of knowledge about anisotropic behavior at elevated temperatures is even more evident. To overcome these difficulties, a new experimental set-up was developed to reproduce the thermo-mechanical conditions of the industrial process and evaluate the influence of temperature and strain rate on 22MnB5 flow curves through uniaxial tensile tests; an optical strain measurement system was utilized to evaluate the effective strain after necking. From the same data, plastic anisotropy evolution was determined by means of a specially developed procedure. The influence of different cooling rates was taken into account and the rheological properties were correlated with microstructural changes occurring during deformation, previously evaluated through a dilatometric analysis performed in the same range of temperatures.

Turetta, A.; Ghiotti, A. [DIMEG, University of Padova, Via Venezia 1, 35131, Padova (Italy); Bruschi, S. [DIMS, University of Trento, Via Mesiano 77, 38050, Trento (Italy)

2007-04-07

439

Hydrogeology and Physical Characteristics of Water Samples at the Red River Aluminum Site, Stamps, Arkansas  

NASA Astrophysics Data System (ADS)

The Red River Aluminum site near Stamps, Arkansas, contains waste piles of salt cake and metal byproducts from the smelting of aluminum. The waste piles are subjected to about 50 inches of rainfall a year, resulting in the dissolution of the salts and metal. To assess the potential threat to underlying ground-water resources at the site, its hydrogeology was characterized by measuring water levels and field parameters of water quality in 23 wells and at 2 surface-water sites. Seventeen of these monitor wells were constructed at various depths for this study to allow for the separate characterization of the shallow and deep ground-water systems, the calculation of vertical gradients, and the collection of water samples at different depths within the flow system. Lithologic descriptions from drill-hole cuttings and geophysical logs indicate the presence of interbedded sands, gravels, silts, and clays to depths of 65 feet. The regionally important Sparta aquifer underlies the site. Water levels in shallow wells indicate radial flow away from the salt-cake pile located near the center of the site. Flow in the deep system is to the west and southwest toward Bodcau Creek. Water-level data from eight piezometer nests indicate a downward hydraulic gradient from the shallow to deep systems across the site. Values of specific conductance (an indicator of dissolved salts) ranged from 215 to 196,200 microsiemens per centimeter and indicate that saline waters are being transported horizontally and vertically downward away from the site.

Czarnecki, J. B.; Stanton, G. P.; Freiwald, D. A.

2001-12-01

440

Stamping High-Aspect-Ratio Plasmonic Nanoarrays on SERS-Supporting Platforms  

SciTech Connect

The dielectric property of a nanoparticle-supporting film has recently garnered attention in the fabrication of plasmonic surfaces. A few studies have shown that localized surface plasmon resonance (LSPR), and hence SERS, strongly depends on substrate refractive index. In order to create higher efficiency SERS-active surfaces, it is therefore necessary to consider substrate property along with nanoparticle morphology. However, due to certain limitations of conventional lithography, it is often not feasible to create well-defined plasmonic nanoarrays on a substrate of interest. Herein, an additive nanofabrication technique, nanotransfer printing (nTP), is implemented to integrate electron beam lithography (EBL) defined high-aspect-ratio nanofeatures on a variety of SERS-supporting surfaces. With the aid of suitable surface chemistries, a wide range of plasmonic particles were successfully integrated on surfaces of three physically and chemically distinct dielectric materials, viz Polydimethyl siloxane (PDMS), SU-8 photoresist, and glass surfaces, using silicon-based relief pillars. These nTP created metal nanoparticles strongly amplify Raman signal and complement the selection of suitable substrates for better SERS enhancement. Our experimental observations are also supported by the theoretical calculations. The implementation of nTP to stamp out metal nanoparticles on multitude conventional/unconventional substrates has novel applications in designing in-built plasmonic microanalytical devices for SERS sensing and other related photonic studies.

Bhandari, Deepak [ORNL; Wells, Sabrina M [ORNL; Polemi, Alessia [Drexel University; Kravchenko, Ivan I [ORNL; Shuford, Kevin L [ORNL; Sepaniak, Michael J [ORNL

2011-01-01

441

Die Batterie als Schlüsseltechnologie für die Elektromobilität der Zukunft: Herausforderungen - Potenziale - Ausblick  

Microsoft Academic Search

Mit dieser Arbeit wird eine Analyse bezüglich der Herausforderungen, Potenziale und dem Ausblick der Batterie als Türöffner für die Elektromobilität der Zukunft vorgelegt. Zunächst werden die technischen Grundlagen der Batterie dargestellt und die an sie gestellten Anforderungen für automobile Anwendungen aufgezeigt. Anschließend werden die für den automobilen Einsatz in Fahrzeugen aktuell am stärksten verbreiteten sowie sich in Entwicklung befindliche elektrochemische

Peter Kleine-Möllhoff; Holger Benad; Frank Beilard; Mohammed Esmail; Martina Knöll

2012-01-01

442

A runner-optimization design study of a die-casting die  

Microsoft Academic Search

Die casters usually carry out a die casting test before producing new castings. At the die-casting test stage, the runner part is always repeatedly corrected, which leads to a lengthened processing time and increased processing cost. In order to solve this problem, research studies of the runner and die body parts have been performed separately during the present experiments. For

C. C Tai; J. C Lin

1998-01-01

443

A comparison of FEM and upper-bound type analysis of equal-channel angular pressing (ECAP)  

Microsoft Academic Search

In this paper the pressures needed for non-friction equal-channel angular pressing (ECAP) of perfectly plastic or strain-hardening materials are analysed using analytical approximations (upper-bound type) and numerical (finite-elements) methods. The approximate solutions agree very well with the FEM results for different ECAP die angles or materials. The convenience of using back-pressure for improving the strain pattern homogeneity of deformed strain-hardening

Jon Alkorta; Javier Gil Sevillano

2003-01-01

444

The location of two-hand trip devices on full revolution mechanical power presses with regard to operator safety  

E-print Network

of operation devices are not accept- able substitutes for point of operation guards when used on full revolution power presses which operate under 200 strokes per minute. ACKNOWLEDGEMENTS I wish to express my thanks to the following individuals... and Health Act. . . Point of Operation Guards. Die Enclosure Guards. 10 10 12 16 17 17 18 18 19 . . ~ . . . ~ . 20 20 22 TABLE OF CONTENTS CONTINUED LITERATURE REVIEW (Continued) Fixed Barrier Guards. Page 22 Adjustable Barrier Guards 23...

Masters, Randall Wayne

2012-06-07

445

Die Anwendung des Sutcliffeschen Entwicklungstheorems auf die V b -Wetterlage vom 8. und 9. Oktober 1964  

Microsoft Academic Search

Zusammenfassung  In der vorliegenden Arbeit wurde versucht, das Sutcliffesche Entwicklungstheorem auf dieV\\u000a\\u000ab\\u000a-Wetterlage vom 8. und 9. Oktober 1964 anzuwenden. Dabei wurde dieses Theorem einer Kritik unterzogen und allgemeiner gefaßt. Die Anwendung ergab, daß die Entwicklung selbst dadurch nicht richtig erfaßt werden konnte, wohl aber das weitere Verhalten der Zyklone nach ihrer Entwicklung. Für die Entwicklung selbst spielen offenbar die

Karin Dohnal

1967-01-01

446

Case of temperature field and failure analysis of die-casting die  

Microsoft Academic Search

Purpose: Dies for aluminium alloys die-casting fail because of a great number of a different and simultaneously operating factors. Some of them may be controlled to some extent by the die-casting experts. Design\\/methodology\\/approach: In the experimental part of our work the failures on the working surface of the fixed half of the testing die for die-casting of aluminium alloys were

B. Kosec; G. Kosec

447

Attacks on the Press in 2000  

NSDL National Science Digital Library

This recently published survey reports on the harassment, imprisonment, and death of journalists worldwide. The report is comprised of regional overviews, country summaries, and individual documented cases. There are also special sections on journalists murdered or imprisoned in the last year, the International Press Freedom Awards of 2000 (given to courageous journalists), and a press release, as well as individual reports on the state of press freedom in China, Russia, and Venezuela. The report may be viewed in HTML or .pdf formats. Earlier editions of this annual report are also available on this site, back to 1996. The preface of this most recent edition was written by Peter Arnett.

2001-01-01

448

Attacks on The Press in 1998  

NSDL National Science Digital Library

This annual report of the CPJ documents worldwide physical and political abuses of journalists. The report provides information on journalists murdered or imprisoned; the ten worst offending political leaders; special reports on the treatment of the press in Nigeria, Latin America, Southeast Asia, Algeria, and the Republics of the former Soviet Union; previous annual reports; an annotated listing of germane CPJ publications; a review of the 1998 International Press Freedom Awards; and a discussion of how CPJ investigates and classifies attacks. "The Committee to Protect Journalists is a nonpartisan organization of journalists dedicated to the defense of press freedom around the world", last discussed in

1999-01-01

449

Die Säureproduktion des resezierten Magens  

Microsoft Academic Search

Zusammenfassung  Mit Hilfe der fortlaufenden intragastralen Titration und einer Endoradiosonde als intragastralem pH-Fühler wurde die Magensekretion\\u000a von 20 nach Billroth I und 79 nach Billroth II resezierten Patienten gemessen, 15% der Billroth-I-bzw. 19% der Billroth-II-Patienten\\u000a waren anazid, 25 bzw. 26,6% produzierten nur nach Betazol Säure. 12,7% der Billroth-II-Patienten waren basal anazid, sezernierten\\u000a jedoch nach Insulin-wie auch nach Betazolgabe Säure. 60% der

G. Stacher; K. Dinstl; Mitwirkung von G. Fink; D. Stärker

1973-01-01

450

MATHEMATICS OF PLANET EARTH PRESS RELEASE  

E-print Network

MATHEMATICS OF PLANET EARTH PRESS RELEASE MARCH 5 2013 MATHEMATICS OF PLANET EARTH DAY AT UNESCO Paris (France) ­ March 5 2013 in a major world-wide initiative: Mathematics of Planet Earth 2013 (MPE2013). This year

451

Catalogue2012 ANU E Press 1  

E-print Network

, so authors that publish through ANU E Press gain full recognition under the Higher Education Research audience; · demolish barriers to entry for developing fields of research that might struggle against

452

Hot Isostatic Pressing of Ceramic Powder Compacts.  

National Technical Information Service (NTIS)

The effect of temperature, pressure and time on the rate of densification of submicron alumina powder during hot isostatic pressing has been determined using a dilatometer to continuously monitor volumetric changes. A Fortran computer program is used to m...

J. K. McCoy, R. R. Wills

1984-01-01

453

Physics & Astrophysics press.princeton.edu  

E-print Network

Physics & Astrophysics 2011 press.princeton.edu #12;2 princetonfrontiersinphysics 3 textbooks 6 astronomy&astrophysics 10 princetonseriesinastrophysics 12 physics 16 princetonseriesinphysics 17 Medium byPrinceton'sBruceDraine,the newestadditiontotherenownedPrinceton Series in Astrophysics

Landweber, Laura

454

Evaluation of permanent die coatings to improve the wear resistance of die casting dies. Final project report, January 1, 1995--April 30, 1997  

SciTech Connect

Die Casting dies are subject to severe service conditions during the die casting operation. While these severe conditions are necessary to achieve high production rates, they cause the dies which are commonly made of H13 die steel, to suffer frequent failures. The major die failure mechanisms are erosion or washout, Heat checking, soldering and corrosion. Due to their geometrical complexity, die casting dies are very expensive (some dies cost over a million dollars), and thus a large number of parts have to be produced by a die, to justify this cost and leverage the advantages of the die casting process (high production rates, low manpower costs). A potential increase in the die service life, thus has a significant impact on the economics of the die; casting operation. There are many ways to extend die life: developing new wear resistant die materials, developing new surface treatments including coatings, improving heat treatment of existing H13 dies, using better lubricants that can protect the die material, or modifying the die geometry and process parameters to reduce the intensity of wear. Of these the use of coatings to improve the wear resistance of the die surface has shown a lot of promise. Consequently, use of coatings in the die casting industry and their wide use to decrease die wear can improve significantly the productivity of shop operations resulting in large savings in material and energy usage.

Shivpuri, R.

1997-09-18

455

Probing protein multidimensional conformational fluctuations by single-molecule multiparameter photon stamping spectroscopy.  

PubMed

Conformational motions of proteins are highly dynamic and intrinsically complex. To capture the temporal and spatial complexity of conformational motions and further to understand their roles in protein functions, an attempt is made to probe multidimensional conformational dynamics of proteins besides the typical one-dimensional FRET coordinate or the projected conformational motions on the one-dimensional FRET coordinate. T4 lysozyme hinge-bending motions between two domains along ?-helix have been probed by single-molecule FRET. Nevertheless, the domain motions of T4 lysozyme are rather complex involving multiple coupled nuclear coordinates and most likely contain motions besides hinge-bending. It is highly likely that the multiple dimensional protein conformational motions beyond the typical enzymatic hinged-bending motions have profound impact on overall enzymatic functions. In this report, we have developed a single-molecule multiparameter photon stamping spectroscopy integrating fluorescence anisotropy, FRET, and fluorescence lifetime. This spectroscopic approach enables simultaneous observations of both FRET-related site-to-site conformational dynamics and molecular rotational (or orientational) motions of individual Cy3-Cy5 labeled T4 lysozyme molecules. We have further observed wide-distributed rotational flexibility along orientation coordinates by recording fluorescence anisotropy and simultaneously identified multiple intermediate conformational states along FRET coordinate by monitoring time-dependent donor lifetime, presenting a whole picture of multidimensional conformational dynamics in the process of T4 lysozyme open-close hinge-bending enzymatic turnover motions under enzymatic reaction conditions. By analyzing the autocorrelation functions of both lifetime and anisotropy trajectories, we have also observed the dynamic and static inhomogeneity of T4 lysozyme multidimensional conformational fluctuation dynamics, providing a fundamental understanding of the enzymatic reaction turnover dynamics associated with overall enzyme as well as the specific active-site conformational fluctuations that are not identifiable and resolvable in the conventional ensemble-averaged experiment. PMID:25222115

Lu, Maolin; Lu, H Peter

2014-10-16

456

Micro-stamped surfaces for the patterned growth of neural stem cells.  

PubMed

We present a method for patterning neural stem cells based on pre-patterning polypeptides on a cell-repellent surface (poly(ethylene) oxide-like, PEO-like, plasma-deposited films). The method ensures cell attachment and stability for several weeks, as well as it allows cell migration and differentiation. Various patterns of approximately 1 nm thick cell adhesive poly-L-lysine (PLL) have been created on a cell-repellent PEO-like matrix by microcontact printing using different array configurations and printing conditions. The cell-repellent property of PEO-like film determined the confinement of the cells on the printed patterns. Optimization of the printing method showed that the most homogeneous patterns over large areas were obtained using PLL diluted in carbonate buffer (100mM) at pH 8.4. Neural stem cells cultured on the PLL patterns in low serum and in differentiating medium over 20 days exhibited a good confinement to the polypeptide domains. The number of cells attached increased linearly with the micro-stamped PLL area. The cells were able to extend random axon-like projections to the outside of the patterns and presented high amount of ramifications when cultured in differentiating medium. Migration and axon-like outgrowth have been successfully guided by means of an interconnected squares configuration. The surfaces are suitable for controlling the patterning of stem cells and provide a platform for the assessment of the way how different cell arrangements and culture conditions influence cell interactions and cell developmental processes. PMID:18819707

Ruiz, Ana; Buzanska, Leonora; Gilliland, Douglas; Rauscher, Hubert; Sirghi, Lucel; Sobanski, Tomasz; Zychowicz, Marzena; Ceriotti, Laura; Bretagnol, Frederic; Coecke, Sandra; Colpo, Pascal; Rossi, François

2008-12-01

457

Graphic Arts: Book Three. The Press and Related Processes.  

ERIC Educational Resources Information Center

The third of a three-volume set of instructional materials for a graphic arts course, this manual consists of nine instructional units dealing with presses and related processes. Covered in the units are basic press fundamentals, offset press systems, offset press operating procedures, offset inks and dampening chemistry, preventive maintenance…

Farajollahi, Karim; And Others

458

Evaluation of permanent die coatings to improve the wear resistance of die casting dies. Final project report, January 1, 1995--April 30, 1997.  

National Technical Information Service (NTIS)

Die Casting dies are subject to severe service conditions during the die casting operation. While these severe conditions are necessary to achieve high production rates, they cause the dies which are commonly made of H13 die steel, to suffer frequent fail...

R. Shivpuri

1997-01-01

459

Enery Efficient Press and Sinter of Titanium Powder for Low-Cost Components in Vehicle Applications  

SciTech Connect

This is the final technical report for the Department of Energy NETL project NT01931 Energy Efficient Press and Sinter of Titanium Powder for Low-Cost Components in Vehicle Applications. Titanium has been identified as one of the key materials with the required strength that can reduce the weight of automotive components and thereby reduce fuel consumption. Working with newly developed sources of titanium powder, Webster-Hoff will develop the processing technology to manufacture low cost vehicle components using the single press/single sinter techniques developed for iron based powder metallurgy today. Working with an automotive or truck manufacturer, Webster-Hoff will demonstrate the feasibility of manufacturing a press and sinter titanium component for a vehicle application. The project objective is two-fold, to develop the technology for manufacturing press and sinter titanium components, and to demonstrate the feasibility of producing a titanium component for a vehicle application. The lowest cost method for converting metal powder into a net shape part is the Powder Metallurgy Press and Sinter Process. The method involves compaction of the metal powder in a tool (usually a die and punches, upper and lower) at a high pressure (up to 60 TSI or 827 MPa) to form a green compact with the net shape of the final component. The powder in the green compact is held together by the compression bonds between the powder particles. The sinter process then converts the green compact to a metallurgically bonded net shape part through the process of solid state diffusion. The goal of this project is to expand the understanding and application of press and sinter technology to Titanium Powder applications, developing techniques to manufacture net shape Titanium components via the press and sinter process. In addition, working with a vehicle manufacturer, demonstrate the feasibility of producing a titanium component for a vehicle. This is not a research program, but rather a project to develop a process for press and sinter of net shape Titanium components. All of these project objectives have been successfully completed.

Thomas Zwitter; Phillip Nash; Xiaoyan Xu; Chadwick Johnson

2011-03-31

460

Vacuum die attach for integrated circuits  

DOEpatents

A thin film eutectic bond for attaching an integrated circuit die to a circuit substrate is formed by coating at least one bonding surface on the die and substrate with an alloying metal, assembling the die and substrate under compression loading, and heating the assembly to an alloying temperature in a vacuum. A very thin bond, 10 microns or less, which is substantially void free, is produced. These bonds have high reliability, good heat and electrical conduction, and high temperature tolerance. The bonds are formed in a vacuum chamber, using a positioning and loading fixture to compression load the die, and an IR lamp or other heat source. For bonding a silicon die to a silicon substrate, a gold silicon alloy bond is used. Multiple dies can be bonded simultaneously. No scrubbing is required.

Schmitt, Edward H. (Livermore, CA); Tuckerman, David B. (Livermore, CA)

1991-01-01

461

Vacuum die attach for integrated circuits  

DOEpatents

A thin film eutectic bond for attaching an integrated circuit die to a circuit substrate is formed by coating at least one bonding surface on the die and substrate with an alloying metal, assembling the die and substrate under compression loading, and heating the assembly to an alloying temperature in a vacuum. A very thin bond, 10 microns or less, which is substantially void free, is produced. These bonds have high reliability, good heat and electrical conduction, and high temperature tolerance. The bonds are formed in a vacuum chamber, using a positioning and loading fixture to compression load the die, and an IR lamp or other heat source. For bonding a silicon die to a silicon substrate, a gold silicon alloy bond is used. Multiple dies can be bonded simultaneously. No scrubbing is required. 1 figure.

Schmitt, E.H.; Tuckerman, D.B.

1991-09-10

462

Die singulation method and package formed thereby  

DOEpatents

A method is disclosed for singulating die from a substrate having a sacrificial layer and one or more device layers, with a retainer being formed in the device layer(s) and anchored to the substrate. Deep Reactive Ion Etching (DRIE) etching of a trench through the substrate from the bottom side defines a shape for each die. A handle wafer is then attached to the bottom side of the substrate, and the sacrificial layer is etched to singulate the die and to form a frame from the retainer and the substrate. The frame and handle wafer, which retain the singulated die in place, can be attached together with a clamp or a clip and to form a package for the singulated die. One or more stops can be formed from the device layer(s) to limit a sliding motion of the singulated die.

Anderson, Robert C. (Tucson, AZ); Shul, Randy J. (Albuquerque, NM); Clews, Peggy J. (Tijeras, NM); Baker, Michael S. (Albuquerque, NM); De Boer, Maarten P. (Albuquerque, NM)

2012-08-07

463

Method of shaping an extrusion die  

SciTech Connect

This patent describes a process for blow molding an article from a tubular parison extruded through a die gap defined by two die elements including a mandrel and a bushing. It comprises: determining a desired wall thickness distribution for a blown article at a given mold cross section defined by a number of straight line segments; calculating a desired die gap necessary to achieve the desired wall thickness distribution; forming an approximation of the desired die gap calculated by making a plurality of overlapping circular cuts in at least one of the die elements; and extruding a parison through the die gap formed, and blow molding the parison to form a blown article having approximately the desired wall thickness distribution as determined.

Bryan, T.H.

1989-09-26

464

Damage prediction of 7025 aluminum alloy during equal-channel angular pressing  

NASA Astrophysics Data System (ADS)

Equal-channel angular pressing (ECAP) is a prominent technique that imposes severe plastic deformation into materials to enhance their mechanical properties. In this research, experimental and numerical approaches were utilized to investigate the mechanical properties, strain behavior, and damage prediction of ECAPed 7025 aluminum alloy in various conditions, such as die channel angle, outer corner angle, and friction coefficient. Experimental results indicate that, after the first pass, the yield strength, ultimate tensile strength, and hardness magnitude are improved by approximately 95%, 28%, and 48.5%, respectively, compared with the annealed state, mainly due to grain refinement during the deformation. Finite element analysis shows that the influence of die channel angle is more important than that of outer corner angle or friction coefficient on both the strain behavior and the damage prediction. Also, surface cracks are the main cause of damage during the ECAP process for every die channel angle except for 90°; however, the cracks initiated from the neighborhood of the central regions are the possible cause of damage in the ECAPed sample with the die channel angle of 90°.

Ebrahimi, M.; Attarilar, Sh.; Gode, C.; Djavanroodi, F.

2014-10-01

465

Heinrich Von Kleist Und Die Romantik  

E-print Network

, wohlbekannten Esel, welches bei seinem Weib gleich Anklang findet. Auf den Hoehe- punkt steigt das Krasse aber mit Jupiters Begehren. "Er negiert sich selbst, weit mehr noch, er kriecht in die koerperliche huelle eines andern. Es ist der sehnei- denste... Ausdruck fuer die letzte, aeusserste Moeglich- keit. Jupiter im Amphitryon ist blos ein Superlativ.... Das tiefste Geheimnis und die tiefste Scham der Erotik sind hier entschleiert." In der "Pen thes ilea" findet das Extreme, wie der, das fast...

Kliewer, Johann Carl

1914-06-01

466

Cytologische Studien über die Gattung Hieracium  

Microsoft Academic Search

Zusammenfassung 1.Es sind 22 Arten der GattungHieracium cytologisch untersucht worden. Die Chromosomenzahl wurde in Zellen von Wurzelspitzen ermittelt. Es wurden Arten mit 2n=18, 27, 36 und 45 Chromosomen gefunden.2.An einigen dieser Arten wurde die meiotische Kernteilung beobachtet, wobei Unregelmäßigkeiten gesehen wurden, welche bereitsRosenberg festgestellt hat. Eine Ausnahme bildetH. foliosum, wo sich in den Antheren von den gleichen Blütenköpfchen die Pollenmutterzellen

M. Christoff; A. Popoff

1933-01-01

467

Euklid als Physiker: Die Realgeltung der Geometrie  

NASA Astrophysics Data System (ADS)

Es lässt sich beweisen, dass die Winkelsumme in einem ebenen, euklidischen Dreieck 180 Grad beträgt. Ebenso ergibt sich, dass die Winkelsumme in einem Dreieck auf einer Kugeloberfläche größer als 180 Grad ist. Auch der Satz des Pythagoras ist beweisbar. In allen Fällen beruhen die Beweise auf Euklids Parallelenaxiom. Das aber lässt sich nicht beweisen. Beweisbar aber ist, dass es in nicht-euklidischen Geomerien nicht gilt.

Genz, Henning

468

Implementierung von Motorvermessungsmethoden für die Prüfstandsautomatisierung  

NASA Astrophysics Data System (ADS)

Antriebsstrang Applikationsprozesse werden zunehmend kritischer. Die steigenden Erwartungen an ein Fahrzeug und die Kundenzufriedenheit sind der treibende Faktor für Verbesserungen, insbesondere hinsichtlich der transienten Performance, des Fahrverhaltens und der Reduzierung des Verbrauchs. Gleichzeitig müssen striktere Emissions-Grenzwerte erfüllt werden. Dies führt zwangsläufig zu einer komplexeren Antriebsstrang-Hardware, einschließlich Sensoren und Aktuatoren. Steuergeräte werden immer leistungsfähiger, Modelle immer komplexer, die Anzahl von parametrierbaren Labels in den Modellen steigt ständig. Das Gesamtsystem Mechanik, Hydraulik, Thermodynamik und Elektronik und die Interaktion der einzelnen Komponenten wird zum entscheidenden Erfolgsfaktor für Projekte. Deshalb wurde ein Smart-Calibration-Prozess entwickelt. "Smart Calibration ist ein verfolgbares und wieder verwendbares Konzept, welches die Qualität und die Effizienz der Applikation steigert. Basierend auf qualitativ hochwertigen Messergebnissen können diese schnellstmöglich hereingefahren und die notwendige Anzahl der Messungen auf ein Minimum reduziert werden. Darüber hinaus dürfen einzelne Entwicklungsschritte nicht an die klassischen Entwicklungsumgebungen gebunden sein. Eine Flexibilisierung schafft deutliche Fortschritte in Effektivität und Effizienz. Ohne durchgängige Plattform Lösungen mit professionellen Produkten kann eine nachhaltige Produktivitätssteigerung im weltweiten Wettbewerb nicht realisiert werden.

Martini, Eike; Wellers, Matthias

469

Die Wirkung von Chlormadinonacetat auf humane Melanozyten.  

E-print Network

??Die Einnahme oraler Kontrazeptiva kann zu unerwünschten Pigmentveränderungen an der Haut, auch Melasma genannt, führen. Histologische Kennzeichen von Melasma sind eine epidermale Hyperpigmentierung, ein Anstieg… (more)

Wiedemann, Christine

2010-01-01

470

Studien über die Jungermannioideae (Hepaticae) 10. Nardia  

Microsoft Academic Search

Die vorliegende Studie, die letzte aus der Serie der vorbereiteten, Studien über die SubfamilieJungermannioideue (Jungermanniaceae, Hepaticae) ist den Arten der GattungNardia\\u000a S. Gray corr.Carring. gewidmet. Die GattungNardia wird in zwei Untergattungen gegliedert, u. zw. Subg.Geoscypharia\\u000a Trev. mit den Sektionen Sect.Breidlerion\\u000a Grolle (2 Arten), Sect.Flagelliformes\\u000a Inoue (2 Arten), Sect.Geoscypharia (6 Arten), Sect.Nudae sect. nova (1 Art) und Sect.Subclavatae\\u000a Inoue (3 Arten)

Ji?í Vá?a

1976-01-01

471

Über die Atmung beim Coma diabeticum  

Microsoft Academic Search

Zusammenfassung  1. Es wird über einige klinische Erfahrungen beim Koma berichtet.\\u000a \\u000a 2. Beim Koma ist die Atmung vertieft, die Frequenz vermehrt, das Minutenvolumen gesteigert. Man findet jedoch bei Normalen\\u000a gelegentlich noch höhere Werte. Charakteristisch für Koma allein ist das Atemäquivalent. Dieses ist für die Komabeurteilung\\u000a neben der Atemkurve wichtig.\\u000a \\u000a \\u000a \\u000a 3. Es wird die Schwankungsbreite des Atemäquivalentes bei Normalen, Komatösen und Präkomatösen

M. S. Arsenijevi?; H. W. Knipping

1930-01-01

472

78 FR 32366 - Notice of Petitions by Firms for Determination of Eligibility To Apply for Trade Adjustment...  

Federal Register 2010, 2011, 2012, 2013

...medium sized custom progressive die stampings, custom deep draw stampings, compound and blanking die stampings. J&L Dimensional...IN 46350. turbine investment castings and provider of layout inspection...manufacturer for rotary molder die rolls and rotary cutter...

2013-05-30

473

An activist press: The farm press's coverage of the animal rights movement  

Microsoft Academic Search

The animal rights movement is a serious challenge to current agricultural practices. Agriculture's response, in part, depends on how successfully it can mobilize its natural constituency, farmers. However, theories of the mainstream press suggest that the mainstream press generally covers events, rarely reports or adopts the perspective of alternative movements, rarely includes mobilizing information, and suggests that routine social structures

Ann Reisner

1992-01-01

474

To be published in Behavioral and Brain Sciences (in press) Cambridge University Press 2003  

E-print Network

1 To be published in Behavioral and Brain Sciences (in press) © Cambridge University Press 2003.) To give and to give not: The behavioral ecology of human food transfers Michael Gurven Department introduces a framework for better understanding variation in sharing behavior across small-scale traditional

Cosmides, Leda

475

Speaking of a Free Press: 200 Years of Notable Quotations about Press Freedoms.  

ERIC Educational Resources Information Center

Intended to summarize the ideals underlying the struggle for freedom of the press and to reinforce the basic Constitutional principles upon which the United States functions, this collection of quotations reflects the beliefs of prominent people throughout history who have championed press freedom, as well as the ideas of some who have opposed it.…

American Newspaper Publishers Association Foundation, Washington, DC.

476

Pyrometry in the Multianvil Press: New approach for temperature measurement in large volume press experiments  

Microsoft Academic Search

Temperature measurement in large volume press experiments has been based on thermocouple emf, which has well known problems: unknown pressure dependence of emf [e.g., 1], chemical reaction between thermocouple and other materials, deformation related texture development in the thermocouple wires [2], and so on. Thus, different techniques to measure temperatures in large volume press experiments other than thermocouples are required

T. Sanehira; Y. Wang; V. Prakapenka; M. L. Rivers

2008-01-01

477

Charles Darwin University Press www.cdu.edu.au/cdupress About CDU Press2  

E-print Network

Season 2009 Catalog CDU Press is the publishing house of Charles Darwin University. We publish books on a diverse range of topics from the Northern Territory Dictionary of Biography to high quality art publicatons. The Press is a small but adventurous organisation and we have books that include subject matter

478

AUPress: A Comparison of an Open Access University Press with Traditional Presses  

ERIC Educational Resources Information Center

This study is a comparison of AUPress with three other traditional (non-open access) Canadian university presses. The analysis is based on the rankings that are correlated with book sales on Amazon.com and Amazon.ca. Statistical methods include the sampling of the sales ranking of randomly selected books from each press. The results of one-way…

McGreal, Rory; Chen, Nian-Shing

2011-01-01

479

www.universitypressscholarship.com Oxford University Press 2011. All rights reserved. 2. University Press  

E-print Network

. University Press Scholarship Online? 3. UPSO 4. 5. 6. 7. (Quick search) 8. 9. DOIs 10. 11. 12. 13 Scholarship Online · UPSO7,00022 · XML · · ­ DOIs · #12;www.universitypressscholarship.com Oxford University Press 2011. All rights reserved. UPSO (Advanced Search) 1. (Browse subject ) 1. (Subject

Wu, Yih-Min

480

Study Program to Develop and Evaluate Die and Container Materials for the Growth of Silicon Ribbons  

NASA Technical Reports Server (NTRS)

The completion of a major hardware delivery milestone was accomplished with the delivery of three CNTD Si3N4 coated hot pressed Si3N4 crucibles. A limited characterization of the coating was performed at MRL prior to delivery. The coatings were fine grained alpha - Si3N4. It was determined that a two piece die design is required. The importance of the role of oxygen in influencing the attack of the CNTD materials by molten silicon was demonstrated. The stability is greatly enhanced by maintaining the oxygen partial pressure near or below the Si + O2 = SiO2 equilibrium.

Ounby, P. D.; Yu, B. B.; Barsoum, M. W.

1979-01-01

481

Die wirkung steigender konzentrationen von natriumhydrogenkarbonat in wasserkulturen und die gegenwirkung des na-humats  

Microsoft Academic Search

\\u000a Abstrakt  Die Wirkung steigender Konzentrationen von NaHCO3 auf die Ausfällung des Eisens in einer Nährlösung sowie die durch das Hydrogenkarbonat bedingte Hemmung des Wachstums der\\u000a Pflanzen (begleitet von Chlorose) und zugleich die Gegenwirkung des Na-Humats wurden erforscht. Unter der Einwirkung von NaHCO3 wurde eine Verminderung des Eisengehaltes und eine Erhöhung des Verhältnisses P\\/Fe in den Sprossen festgestellt; in Anwesenheit\\u000a von Humat

Maria Badurowa; S. Gumi?ski; Anna Suder-Moraw

1967-01-01

482

Über den Einfluß des Röntgenlichtes auf die Absorptionsspektra der Alkalihalogenidphosphore  

Microsoft Academic Search

Zusammenfassung 1.Die Arbeit enthält eine Teiluntersuchung über den Mechanismus der Phosphoressenz in Alkalihalogenidphosphoren.2.Es werden experimentell die reversiblen Veränderungen festgestellt, die die scharfen von Hilsch und Smakula ausgemessenen Absorptionsspektra dieser Phosphore durch Einwirkung von Röntgenlicht erfahren. Die experimentellen Ergebnisse lassen sich folgendermaßen zusammenfassen:a)Die scharfen Absorptionsbanden werden durch Röntgenlicht bei bleihaltigen Phosphoren erniedrigt, bei thalliumhaltigen Phosphoren erhöht.b)Gleichzeitig zeigt die kurzwellige der beiden

Agnes Arsenjewa

1929-01-01

483

Die fatigue life design and assessment via CAE simulation  

Microsoft Academic Search

In die design process, the design and prediction of die fatigue life is a non-trivial issue. Many factors in die life cycle\\u000a from design, fabrication to service all affect die life. The die life in cold forging processes is basically determined by\\u000a die fatigue failure. The design and assessment of die fatigue life needs to consider all the affecting factors

M. W. Fu; M. S. Yong; T. Muramatsu

2008-01-01

484

Inhomogeneity Through Warm Equal Channel Angular Pressing  

NASA Astrophysics Data System (ADS)

In this study, the hardness inhomogeneity of billets during multi-passes of equal channel angular pressing (ECAP) at elevated temperatures is investigated and the effect of large strain deformation during ECAP on the hardness inhomogeneity characteristics due to dynamic aging of aluminum 6061 under a variety of temperatures and ram speed was studied by TEM and hardness measurements. The hardness results showed that the hardness distribution is more homogenous after four passes using the pressing route Bc. However, when the deformation temperature was considered, performing ECAP at 100 °C may provide the most homogeneous microstructure after multi-pressing as long as the total number of pressing passes is four. This indicates that a lower temperature (in the range of warm working) is favorable for achieving an ultrafine-grained/nanomaterial with a more homogenous microstructure. In order to quantify the inhomogeneity in the cross section of the as-pressed sample, an inhomogeneity index has been defined. The results show an increase in the hardness in the first pass with significant inhomogeneous deformation and a transition toward a more homogeneous structure with subsequent passes.

Vaseghi, Majid; Kim, Hyoung Seop; Karimi Taheri, Ali; Momeni, Amir

2013-06-01

485

Roller presses -- Versatile equipment for mineral processing  

SciTech Connect

Roller presses were first invented in the middle of the 19th century for the economical size enlargement of coal fines as fuels. In addition to contemporary coal briquetting, in fields such as smokeless fuel and form-coke, it was found that redesigned and modernized roller presses, which are now capable of exerting high forces, are versatile machines for many tasks in mineral processing. Today they are used for: the classic pressure agglomeration and the new high pressure comminution. In pressure agglomeration, the characteristics of fine minerals are improved by forming briquettes or granulated products from compacts. During size enlargement with roller presses briquettes are directly obtained while granular materials are produced by crushing and sizing of compacted sheets. A relatively new application of roller presses in mineral processing is the utilization of the crushing effect when brittle materials pass the nip area between the rollers. It was found that this crushing mechanism is very efficient thus saving energy, particularly in grinding circuits handling large capacities. The paper introduces the fundamentals of the process and describes the design as well as applications of modern roller presses in mineral processing.

Pietsch, W. [Koppern Equipment, Inc., Pittsburgh, PA (United States)

1995-12-31

486

Possibility of introducing laser surfacing into maintenance service of die-casting dies  

Microsoft Academic Search

The shape and manufacturing of tools for die casting of aluminium and magnesium alloys are usually extremely exacting and therefore very expensive. In a die-casting process, these tools are subjected to strong thermo-mechanical loads. From the economic point of view the operation life of dies is extremely important to the price of the castings. It has been proved that by

J. Grum; J. M. Slabe

2004-01-01

487

Activity-Based Costing in the After Press Services Industry  

NASA Astrophysics Data System (ADS)

This research was conducted to apply activity-based costing (ABC) in an after press service company in Chiang Mai province, Thailand. The company produces all of its products by one-stop service (such as coating, stitching, binding, die cutting, and gluing). All products are made to order, and have different sizes and patterns. A strategy of low price is used to compete in the marketplace. After cost analysis, the study found that the company has high overhead (36.5% of total cost). The company's problem is its use of traditional cost accounting, which has low accuracy in assigning overhead costs. If management uses this information when pricing customer orders, losses may occur because real production costs may be higher than the selling price. Therefore, the application of ABC in cost analysis can help executives receive accurate cost information; establish a sound pricing strategy; and improve the manufacturing process by determining work activities which have excessively high production costs. According to this research, 6 out of 56 items had a production cost higher than the selling price, leading to losses of 123,923 baht per year. Methods used to solve this problem were: reducing production costs; establishing suitable prices; and creating a sales promotion with lower prices for customers whose orders include processes involving unused capacity. These actions will increase overall sales of the company, and allow more efficient use of its machinery.

Shevasuthisilp, Suntichai; Punsathitwong, Kosum

2009-10-01

488

Über die Bestimmung des Phenols und Kresols  

Microsoft Academic Search

Zusammenfassung Es wurden von den verschiedenen Methoden zur Bestimmung der Kresole in Rohkresol und Lysol die Brom- und Jodmethoden näher untersucht und gefunden, dass dieselben nur unter bestimmten Versuchsbedingungen brauchbare Resultate geben. In der Kälte nimmt reines Phenol unter geeigneten Bedingungen konstant drei Halogenatome auf, während die Kresole etwa zwei aufnehmen. Auf Grund der Bromierung oder Jodierung in der Kälte

K. K. Järvinen

1927-01-01

489

,,Wege in die Europische Forschung" INFORMATIONSVERANSTALTUNG  

E-print Network

Euro will die EU über das neue Rahmenprogramms "Horizon 2020" in den Jahren von 2014 bis 2020 dieJ EUKOS MV) 9:45 Horizon 2020: Neue Perspektiven in der EU-Forschung (Fuchs, KOWI) 10:30 Mobil in Europa

Rostock, Universität

490

Die Ernährung südwestdeutscher Wanderfalken (Falco peregrinus)  

Microsoft Academic Search

Zusammenfassung Der südwestdeutsche Wanderfalken-Bestand wird seit 1965 von der “Arbeitsgemeinschaft Wanderfalkenschutz in Baden-Württemberg” überwacht und geschützt. Im Zuge dieser Arbeit wurden bis Ende 1969 auch 2053 Rupfungen sowie Reste von 6 Säugetieren und 29 Insekten gesammelt. Hierbei zeigte sich einerseits die Vielseitigkeit der Beute (70 Vogelarten), andererseits die starke Bevorzugung von Drosseln, Staren, Tauben und Eichelhähern. Nur 6 Arten stellen

Dieter Rockenbauch

1971-01-01

491

Prediction of Part Distortion in Die Casting  

SciTech Connect

The die casting process is one of the net shape manufacturing techniques and is widely used to produce high production castings with tight tolerances for many industries. An understanding of the stress distribution and the deformation pattern of parts produced by die casting will result in less deviation from the part design specification, a better die design and eventually more productivity and cost savings. This report presents methods that can be used to simulate the die casting process in order to predict the deformation and stresses in the produced part and assesses the degree to which distortion modeling is practical for die casting at the current time. A coupled thermal-mechanical finite elements model was used to simulate the die casting process. The simulation models the effect of thermal and mechanical interaction between the casting and the die. It also includes the temperature dependant material properties of the casting. Based on a designed experiment, a sensitivity analysis was conducted on the model to investigate the effect of key factors. These factors include the casting material model, material properties and thermal interaction between casting and dies. To verify the casting distortion predictions, it was compared against the measured dimensions of produced parts. The comparison included dimensions along and across the parting plane and the flatness of one surface.

R. Allen Miller

2005-03-30

492

Clemens Simmer in die Meteorologie (met211)  

E-print Network

. Sie wird als zyklonal (Zyklone!) bezeichnet. Die Rotation ist ein axialer Vektor. Da die Luftströmung Erdrotation haben auch auf der Erde ruhende Gegenstände in einem System, das z.B. in der Sonne verankert ist ist wichtig, da z.B. nur für letzteres das 2. Newtonsche Axiom (Kraft = Masse x Beschleunigung) gilt

Lindau, Ralf

493

Die ausgewhlten Wissenschaftler (1850-1918)  

E-print Network

. Er ist bekannt für die �bersetzung und die schnelle Verbreitung der Werke von Galileo GALILEI, unter Galilei nahe Jean-Henri Lambert (1728-1777) Mathematiker, Physiker und Philosoph, geboren in Mülhausen: Matthias BERNEGGER (1582-1640). Professor an der Universität Stra�burg, Zeitgenosse und Freund von GALILEI

Hanke-Bourgeois, Martin

494

Die „cortinähnliche“ Wirkung des g-Strophanthins  

Microsoft Academic Search

An normalen Kaninchen bewirkten höhere Dosen des Strophanthins eine Steigerung des Blutchlorid-, Natrium- und Zuckerspiegels und eine Erniedrigung der Plasmakaliumkonzentration. An normalen Hunden wird der Chlorid- und Natriumgehalt des Blutes auf Strophanthin erhöht, der Kaliumgehalt des Plasmas gesenkt. Die mit dem Harn ausgeschiedenen Natriummengen sanken nach Strophanthinbehandlung ab und gleichzeitig nahm die Kaliumausscheidung stark zu. Im Lichte dieser auf den

E. Varga; D. Bagdy; L. Kesztyüs

1949-01-01

495

Student Nurses' Perception of Death and Dying  

ERIC Educational Resources Information Center

Student nurses are involved in caring for patients who are actively dying or who have been told they have a terminal illness and are faced with the process of dying. Students encounter these patients in hospitals, nursing homes, at home or in hospice care settings. According to Robinson (2004), "nurses are the healthcare providers that are most…

Niederriter, Joan E.

2009-01-01

496

SMART-1: Die erste europäische Mondsonde  

NASA Astrophysics Data System (ADS)

Am 28. September 2003 wurde die europäische Mondsonde SMART-1 als Beifracht mit einer ARIANE-5-Trägerrakete ins All gebracht. Ende 2004 erreichte die Sonde nach vielen Erdumläufen schließlich eine Umlaufbahn um den Erdtrabanten und übermittelt seit Dezember 2004 Bilder und Messdaten aus der Mondumlaufbahn.

Camino Ramos, Octavio; Khan, Michael

2005-06-01

497

Die Flügelbefiederung des Bleßhuhns (Fulica atra L.)  

Microsoft Academic Search

Zusammenfassung Es werden die Anordnung und das Aussehen der Konturfedern am Flügel des Bleßhuhns (Fulica a. atra L.) beschrieben und erörtert. Die Verhältnisse beiFulica a. australis, F. americana undF. cristata stimmen damit überein. Zum Vergleich wurden nochCrex crex, Porzana porzana, Rallus aquaticus undGallinula chloropus untersucht.

Hans Jeikowski

1971-01-01

498

Thermal characterization of multi-die packages  

Microsoft Academic Search

Thermal measurement and modeling of multi-die packages became a hot topic recently in different fields like RAM chip packaging or LEDs and LED assemblies. In our present study, besides the overview of usual multi die packages, we present results for a more complex structure: an opto-coupler device with 4 chips in a combined lateral and vertical arrangement. The paper gives

András Poppe; Yan Zhang; Gábor Farkas; Hon Wong; John Wilson; Péter Szabó

2006-01-01

499

Ueber die Herkunft einiger nitrophiler unkräuter Mitteleuropas  

Microsoft Academic Search

Die aus Mitteleuropa bekannten und hier grossfl~ichig verbreiteten nitrophilen Unkrautgesellschaften sind zum iiberwiegenden Teil anthropogen bedingt und verdanken ihre Entstehung und Erhaltung der menschlichen, namentlich der biiuerlichen Wirtschaft. Mit Recht weist abet NORDHAGEN (1939\\/40) in seiner aufschlussreichen Arbeit iiber ,~die Pflanzengesellschaften der Tangw.'~lle\\

Wilhelm Lohmeyer

1954-01-01

500

Forschen fr die Internet-Gesellschaft  

E-print Network

Forschen für die Internet-Gesellschaft: Trends, Technologien, Anwendungen Trends und Internet Das Future Internet wird die globale, zuverlässige Plattform für alle Dienste ..................................................................... 15 Trendaussage 4 ­Security and Safety/Privacy/Self-Defending Sicherheit wird zu einer

Wahlster, Wolfgang - Deutsche Forschungszentrum für Künstliche Intelligenz & FR 6.2