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Sample records for stamping dies press

  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. Stamping Die Making. 439-318/320.

    ERIC Educational Resources Information Center

    Yunke, P.; And Others

    Each unit in this curriculum guide on stamping die making contains an introduction, objectives, materials required, lessons, space for notes, figures, and diagrams. There are 29 units in this guide, dealing with the following topics: EZ-MILL programming; EZ-MILL BATT; print of punch and EZ-MILL part programming; download to Computer Numerical…

  3. 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

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

    NASA Astrophysics Data System (ADS)

    Wang, Chuantao (C. T.)

    2005-08-01

    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.

  5. Evolutions of Advanced Stamping CAE -- Technology Adventures and Business Impact on Automotive Dies and Stamping

    SciTech Connect

    Wang Chuantao

    2005-08-05

    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.

  6. Impact of Simulation Technology on Die and Stamping Business

    NASA Astrophysics Data System (ADS)

    Stevens, Mark W.

    2005-08-01

    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

  7. Including die and press deformations in sheet metal forming simulations

    NASA Astrophysics Data System (ADS)

    Pilthammar, Johan; Sigvant, Mats; Kao-Walter, Sharon

    2016-08-01

    Structural analysis, in Abaqus, of a stamping die and subsequent morphing of the tool surfaces in AutoForm were performed to improve a sheet metal forming simulation. First, the tool surfaces of the XC90 rear door inner were scanned. They were not matching when the die was unloaded and could therefore not give any satisfying results in sheet metal forming simulations. Scanned surface geometries were then added to a structural FE-model of the complete stamping die and some influential parts of the production press. The structural FE- model was analysed with Abaqus to obtain the structural deformations of the die. The calculated surface shapes were then transferred to AutoForm where a forming simulation was performed. Results from the different sheet metal forming simulations were compared to measured draw in curves and showed a substantial increase in accuracy and ability to analyse dies in running production when the morphed surfaces were used.

  8. Sheet metal stamping die design for warm forming

    DOEpatents

    Ghosh, Amit K.

    2003-04-22

    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.

  9. Simulation of Stamping Process of Automotive Panel Considering Die Deformation

    SciTech Connect

    Keum, Y.T.; Ahn, I.H.; Lee, I.K.; Song, M.H.; Kwon, S.O.; Park, J.S.

    2005-08-05

    In order to see the effect of die deformation on the forming of sheet metals, the draw-ins, strains, and spring-backs of an automotive fender panels are numerically simulated considering the die deformation, which is found by the simultaneous structural analysis of press and dies. By coupling the forming analysis and the structural analysis, the die deformation is simultaneously taken into account in the forming process. Furthermore, for the consideration of load difference transferred among the upper die, punch, and blank holder due to the changes in sheet thickness, the gap elements are employed instead of the blank sheet in the structural analysis. The numerical simulation results of an automotive fender draw panel are compared with the measurements. The comparison of the forming and spring-back analysis results between the rigid die and the deformed die shows that the deformed tool provides more accurate forming and spring-back prediction.

  10. Simulation of Stamping Process of Automotive Panel Considering Die Deformation

    NASA Astrophysics Data System (ADS)

    Keum, Y. T.; Ahn, I. H.; Lee, I. K.; Song, M. H.; Kwon, S. O.; Park, J. S.

    2005-08-01

    In order to see the effect of die deformation on the forming of sheet metals, the draw-ins, strains, and spring-backs of an automotive fender panels are numerically simulated considering the die deformation, which is found by the simultaneous structural analysis of press and dies. By coupling the forming analysis and the structural analysis, the die deformation is simultaneously taken into account in the forming process. Furthermore, for the consideration of load difference transferred among the upper die, punch, and blank holder due to the changes in sheet thickness, the gap elements are employed instead of the blank sheet in the structural analysis. The numerical simulation results of an automotive fender draw panel are compared with the measurements. The comparison of the forming and spring-back analysis results between the rigid die and the deformed die shows that the deformed tool provides more accurate forming and spring-back prediction.

  11. Advanced Line Die Forming Simulation Technology and Its Impact on Stamping Automotive Body Panels

    NASA Astrophysics Data System (ADS)

    Zhang, Jimmy; Wang, Chuantao; Xu, Siguang; Joshi, Ramesh; Goan, Norman

    2005-08-01

    Line die forming simulation and validation create tremendous business values for automotive die developments and production stamping while they pose a great technological challenge to stamping CAE community. GM Manufacturing Engineering Die Center has developed an integrated line die analysis technology to validate die lines as a productionized business process. In this process, a finished stamping body panel can be streamline analyzed with required time, accuracy, and quality. This paper presents critical issues in line die analysis, discusses technical challenges in production applications and software development, and finally demonstrates the impact of line die forming simulation and validations on automotive body styling and tooling developments.

  12. Rotary press utilizing a flexible die wall.

    PubMed

    Amidon, G E; Smith, D P; Hiestand, E N

    1981-06-01

    A die with a flexible wall was constructed and evaluated on a specially modified instrumented rotary tablet press. The design permits an inward deflection of the die wall by a side punch, which rolls past a side compression roll during compression-decompression. The side compression roll is instrumented to monitor the applied side compression roll forces. On decompression, return of the die wall to its original position permits release of residual die wall pressure. The decreased residual die wall pressure can decrease fracture and capping of tablets for problem formulations. The performance was tested on three experimental formulations. For these formulations, tablets made in a conventional die exhibited severe capping problems. However, most tablets compressed in the special die were superior. With proper adjustment of punch and die wall compression forces, excellent tablets could be manufactured. The merits of the special die and modified tablet machine are substantiated, although this initial design did not provide adequate die wall pressure for all formulations. Further engineering efforts could result in practical production equipment.

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

    NASA Astrophysics Data System (ADS)

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

    2014-07-01

    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.

  14. The Influence of Thermal Conductivity of Die Material on the Efficiency of Hot-Stamping Process

    NASA Astrophysics Data System (ADS)

    Li, Shuang; Zhou, Luhai; Wu, Xiaochun; Zhang, Yun; Li, Junwan

    2016-09-01

    To improve the production efficiency of the hot-stamping process from the perspective of the die materials, a numerical model of a B-pillar component was established to investigate the effects of the thermal conductivity of the die material on the cooling behavior, microstructure, and mechanical evolution of the formed component, as well as the temperature distribution of the die during the hot-stamping process. The results showed that the thermal conductivity of the die material has a more significant influence on the quenching stage than the forming stage. Under the specified simulation and boundary conditions, when the thermal conductivity of the die material improves by 76.23% at 25-300 °C, the maximum cooling rate of the component increases by 48.49% and consequently improves the quenching efficiency of the hot-stamping process by 31.82%. As the thermal conductivity of the die steel increases, the maximum temperature of the die decreases and its temperature uniformity improves. Moreover, to improve the efficiency of the hot-stamping process, steels that possess high thermal conductivity at low temperature ranges are favorable.

  15. Numerical Validation of an Optimized Cooling System for Hot Stamping Die

    NASA Astrophysics Data System (ADS)

    Zakaria, A.; Abidin, M. A.; Ibrahim, M. S. N.; Senin, A.

    2016-08-01

    Numerical analysis of hot stamping process is very complex mainly due to thermomechanical processes involved. Many variables such as heat transfer coefficient, density, young modulus and other thermal parameters are temperature and pressure dependent. The paper presents results of CFD analysis on the near optimized cooling system of hot stamping die for automotive structural part. By using actual parameters obtained from the industry production line, this research is aimed at comparing the performance of actual cooling system with the results obtained by CFD simulation using commercial software. The die and blank were modelled as 3D volume mesh in a closed position thus ignoring blank history data prior to stamping operation. Temperature distribution representing hardness of the simulated final part is an agreement with the QA data of the actual part thus showing viability of this method to be used in cooling system design

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

    SciTech Connect

    Wang Chuantao; Zhang, Jimmy J.; Goan, Norman

    2005-08-05

    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.

  17. Evaluation and Reduction of Machine Difference in Press Working with Utilization of Dedicated Die Support Structure and Numerical Methodologies

    NASA Astrophysics Data System (ADS)

    Ohashi, Takahiro

    2011-05-01

    In this study, support structures of a die for press working are discussed to solve the machine difference problems amongst presses. The developed multi-point die support structures are not only utilized for adjusting elastic deformation of a die, but also for in-process sensing of the behavior of a die. The structures have multiple support cells between a die and the slide of a press machine. The cell, known as `a support unit,' has the strain gauges attached on its side, and works in both ways as a kind of spring and a load and displacement sensor. The cell contacts on the die with a ball-contact, therefore it transmits only the vertical force at each support point. The isolation of a momentum and horizontal load at each support point contributes for a simple numerical model; it helps us to know the practical boundary condition at the points under an actual production. In addition, the momentum and horizontal forces at the points are useless for press working; the isolation of these forces contributes to reduce a jolt and related machine differences. The horizontal distribution of support units is changed to reduce elastic deformation of a die; it contributes to reduce a jolt, alignment errors of a die and geometrical errors of a product. The validity of those adjustments are confirmed with evaluating a product shape of a deep drawing and measuring jolts between upper and lower stamping dies. Furthermore, die deformation in a process is analyzed with using elastic FE analysis with actual bearing loads compiled from each support unit.

  18. Modeling and Simulating Material Behavior during Hot Blank - Cold Die (HB-CD) Stamping of Aluminium Alloy Sheets

    NASA Astrophysics Data System (ADS)

    Zhang, Nan; Abu-Farha, Fadi

    2016-08-01

    Hot blank - cold die (HB-CD) stamping, non-isothermal hot stamping, of aluminium alloy sheets offers great opportunities for high production rates at low cost, while overcoming limited material formability issues. Yet developing an accurate model that can describe the complex material behavior over the wide ranging conditions of HB-CD stamping (temperatures ranging between 25 and 350 °C) is challenging. Moreover, validation of the developed models under transient conditions is problematic. This work presents he results of a comprehensive characterization, material modeling, FE simulation and experimental validation effort to capture the behavior of an aluminium alloy sheet during HB-CD stamping. In particular, we highlight the integration between temperature measurements (thermography) and strain measurements (digital image correlation) for the accurate validation of model predictions of non-isothermal material deformation.

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

    SciTech Connect

    Viswanathan, S.; Ren, W.; Luk, K.; Brucher, H.G.

    1998-09-01

    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.

  20. Solution of boundary heat transfer coefficients between hot stamping die and cooling water based on FEM and optimization method

    NASA Astrophysics Data System (ADS)

    Li, Huiping; He, Lianfang; Zhang, Chunzhi; Cui, Hongzhi

    2016-04-01

    The thermal physical parameters have significant effects on the calculation accuracy of physical fields, and the boundary heat transfer coefficient between the die and water is one of the most important thermal physical parameters in the hot stamping. In order to attain the boundary heat transfer coefficient, the testing devices and test procedures are designed according to the characteristic of heat transfer in the hot stamping die. A method of estimating the temperature-dependent boundary heat transfer coefficient is presented, and an inverse heat conduction software is developed based on finite element method, advance-retreat method and golden section method. The software is used to calculate the boundary heat transfer coefficient according to the temperatures measured by NiCr-NiSi thermocouples in the experiment. The research results show that, the convergence of the method given in the paper is well, the surface temperature of sample has a significant effect on the boundary heat transfer coefficient between the die and water. The boundary heat transfer coefficient increases as the surface temperature of sample reduces, and the variation is nonlinear.

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

    SciTech Connect

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

    2011-05-04

    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.

  2. Accurate Die Design for Automotive Panel Stamping Considering the Compensation Related with Die Deflection and Blank Thinning

    NASA Astrophysics Data System (ADS)

    Chen, Jun; Xu, Dongkai; Xia, Guodong; Li, Xifeng; Chen, Jieshi; Zhang, Jian; Yan, Wei; Li, Yue

    2011-08-01

    In order to improve assembly accuracy, automotive body panels have to be fabricated with higher dimensional and surface quality requirements, therefore the die faces should be designed more accurately to consider more relevant factors. In the presented study, we proposed algorithms to realize the following functions: through forming process simulation, the thinning distribution on the deformed blank was extracted as first kind of compensation; through die structural CAE analysis which automatically mapped the boundary contact forces onto the die surfaces from process simulation results, the die deflection was calculated as second kind of compensation. These two quantitative contributions were added together to compensate the die face. The proposed methodologies were programmed and integrated with LS-Dyna and HyperWorks, and also integrated with Autoform and CATIA linear CAE functionalities separately. In addition, a software toolkit to calculate the contacting ratio was also developed to evaluate the effectiveness of die face compensation. The second toolkit developed was verified by an automotive structural part forming die design, through die compensation and geometric optimization, the predicted contact ratio between the die face and formed blank was improved a lot, and the first toolkit was testified by a fender drawing die design. It shows that the die face compensation can be realized and integrated seamlessly between CAD model, process simulation model and die structural CAE model with the help of data I/O tools developed by the authors.

  3. Developments in Die Pressing Strategies for Low-Cost Titanium Powders

    SciTech Connect

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

    2009-05-01

    Recent developments in the production of low-cost titanium powders have rejuvenated interest in manufacturing titanium powder metallurgy components by direct press and sinter techniques. However excessive friction typically observed during titanium powder pressing operations leads to numerous problems ranging from non-homogeneous green densities of the compacted powder to excessive part ejection forces and reduced die life due to wear and galling. An instrumented double-acting die press was developed to both investigate the mechanics of titanium powder pressing (particularly for the new low-cost powder morphologies) and to screen potential lubricants that could reduce frictional effects. As will be discussed, the instrument was used to determine friction coefficients and to evaluate a number of candidate lubricants. These results were then used to optimize the lubricant system to reduce die-wall stresses and improve part density uniformity.

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

    SciTech Connect

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

    2008-06-19

    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.

  5. 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

  6. Synchronized time stamp support

    SciTech Connect

    Kowalkowski, J.

    1994-02-16

    New software has been added to IOC core to maintain time stamps. The new software has the ability to maintain time stamps over all IOCs on a network. The purpose of this paper is to explain how EPICS will synchronize the time stamps. In addition, this paper will explain how to configure and use the new EPICS time stamp support software.

  7. SPHERICAL DIE

    DOEpatents

    Livingston, J.P.

    1959-01-27

    A die is presented for pressing powdered materials into a hemispherical shape of uniforin density and wall thickness comprising a fcmale and male die element held in a stationary spaced relation with the space being equivalent to the wall thickness and defining the hemispherical shape, a pressing ring linearly moveable along the male die element, an inlet to fill the space with powdered materials, a guiding system for moving the pressing ring along the male die element so as to press the powdered material and a heating system for heating the male element so that the powdered material is heated while being pressed.

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

    SciTech Connect

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

    1996-05-16

    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.

  9. Stamp of Approval

    ERIC Educational Resources Information Center

    Swanson, Joan; Curtis, David

    1977-01-01

    In an age of exquisite graphic art, perhaps the most universally viewed examples are to be found in the commemorative stamps issued by the Postal Service. At Corona del Mar High School, Newport Beach, California, students cooperated to design a stamp and display their work before the public. They therefore learn how the Postal Service selects a…

  10. Microfluidic Stamping on Sheath Flow.

    PubMed

    Yoon, Dong Hyun; Tanaka, Daiki; Sekiguchi, Tetsushi; Shoji, Shuichi

    2016-06-01

    A microfluidic stamping method to form functional shapes on a cross section in fiber-shaped flow is proposed. Microfluidic stamping and overstamping allow various cross sectional shapes on the 3D flow. The shapes can be controlled by a change in combination of structures and fluidic conditions which correspond to stamp type and stamping force. PMID:27149895

  11. The investigation of die-pressing and sintering behavior of ITP CP-Ti and Ti-6Al-4V powders

    SciTech Connect

    Chen, Wei; Yamamoto, Yukinori; Peter, William H; Clark, Michael B; Nunn, Stephen D; Kiggans, Jim; Muth, Thomas R; Blue, Craig A; Williams, James C; Fuller, Brian; Akhtar, Kamal

    2012-01-01

    This paper investigated the die-pressing and sintering behavior of the low-cost CP-Ti and Ti-6Al- 4V powders made by the Armstrong Process . The Armstrong powders have an irregular coral like, dendritic morphology, with a dendrite size of approximately 2-5 m. As-received as well as milled powders were uniaxially pressed at designated pressures up to 690 MPa to form disk samples with different aspect ratios. In the studied pressure range, an empirical powder compaction equation was applied to linearize the green density pressure relationship, and powder compaction parameters were obtained. The Armstrong Ti-64 powder exhibited a significantly higher sinterability than the CP-Ti powder. This was explained to be due to the higher diffusivity of V at the sintering temperature. The Ti-64 samples with a green density of 71.0% increased to 99.6% after sintering at 1300oC for 1 hour. An ex-situ technique was used to track the powder morphology change before and after sintering.

  12. Reciprocating pellet press

    DOEpatents

    Jones, Charles W.

    1981-04-07

    A machine for pressing loose powder into pellets using a series of reciprocating motions has an interchangeable punch and die as its only accurately machines parts. The machine reciprocates horizontally between powder receiving and pressing positions. It reciprocates vertically to press, strip and release a pellet.

  13. Integrated Stamping Simulation Using State Of The Art Techniques To Fulfill Quality Assessment Requirements

    NASA Astrophysics Data System (ADS)

    Ling, David; Lambriks, Marc; El Khaldi, Fouad

    2005-08-01

    The last few years have seen the use of stamping simulation evolve to the extent that it is now a mainstream activity; a core part of the press tool engineering process. Now, new requirements for the use of challenging materials like Dual phase / Complex phase steel, VHSS, and aluminum, together with more stringent quality expectations, and shorter development cycles, there is a need to assess the panel quality in a wider context, before committing to tool manufacture. The integrated approach from ESI Group allows early up-front feasibility assessment, geometry and process optimization, and detailed process validation all within one system. Rapid die design and quick forming simulation modules play an essential role in the early stages of the process. A seamless connection between simulation and geometry is a vital characteristic, with the accurate simulation being used to validate and fine tune the process in order to assess final component quality in unprecedented detail, utilizing some of the most accurate material models available today. The combination of the distributed memory processing (DMP) solver together with new cost effective cluster based compute servers provide a practical solution to the problems of `one million element' model sizes, and more sophisticated modeling methodologies become realistic for the first time. It is no longer sufficient to merely focus on the draw die, forming simulation must now consider the entire die line up. Typically, around half of forming issues arise from the draw die, so the time has now come to address the other half as well! This paper will discuss how the PAM-STAMP 2G™ integrated solution is successfully used to deliver a positive business impact, by providing virtual panel quality assessment, tolerance control, and springback compensation. The paper will also discuss how other forming processes can be accurately modeled using the new modules.

  14. Stamp of Approval

    ERIC Educational Resources Information Center

    Meraw, Leonard J.

    2007-01-01

    Advanced Placement (AP) Chemistry and the National AP Chemistry Examination are both critical to secondary level institutions nationwide. The use of a national embossing stamp to attest to successful completion of an AP Chemistry course and exam to ensure college credit is a novel idea worth consideration. Moreover, the concept could be expanded…

  15. Chemistry on Stamps.

    ERIC Educational Resources Information Center

    Schreck, James O.

    1986-01-01

    Suggests how postage stamps can be incorporated into chemistry teaching. Categories considered include emergence of chemistry as a science, metric system, atoms (and molecules and ions), stoichiometry, energy relationships in chemical systems, chemical bonding, nuclear chemistry, biochemistry, geochemistry, matter (gases, liquids, and solids),…

  16. Rapid thermal processing by stamping

    SciTech Connect

    Stradins, Pauls; Wang, Qi

    2013-03-05

    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.

  17. Multifunctional lipid multilayer stamping.

    PubMed

    Nafday, Omkar A; Lowry, Troy W; Lenhert, Steven

    2012-04-10

    Nanostructured lipid multilayers on surfaces are a promising biofunctional nanomaterial. For example, surface-supported lipid multilayer diffraction gratings with optical properties that depend on the microscale spacing of the grating lines and the nanometer thickness of the lipid multilayers have been fabricated previously by dip-pen nanolithography (DPN), with immediate applications as label-free biosensors. The innate biocompatibility of such gratings makes them promising as biological sensor elements, model cellular systems, and construction materials for nanotechnology. Here a method is described that combines the lateral patterning capabilities and scalability of microcontact printing with the topographical control of nanoimprint lithography and the multimaterial integration aspects of dip-pen nanolithography in order to create nanostructured lipid multilayer arrays. This approach is denoted multilayer stamping. The distinguishing characteristic of this method is that it allows control of the lipid multilayer thickness, which is a crucial nanoscale dimension that determines the optical properties of lipid multilayer nanostructures. The ability to integrate multiple lipid materials on the same surface is also demonstrated by multi-ink spotting onto a polydimethoxysilane stamp, as well as higher-throughput patterning (on the order of 2 cm(2) s(-1) for grating fabrication) and the ability to pattern lipid materials that could not previously be patterned with high resolution by lipid DPN, for example, the gel-phase phospholipid 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) or the steroid cholesterol. PMID:22307810

  18. Applying STAMP in Accident Analysis

    NASA Technical Reports Server (NTRS)

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

    2003-01-01

    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.

  19. HIGH PRESSURE DIES

    DOEpatents

    Wilson, W.B.

    1960-05-31

    A press was invented for subjecting specimens of bismuth, urania, yttria, or thoria to high pressures and temperatures. The press comprises die parts enclosing a space in which is placed an electric heater thermally insulated from the die parts so as not to damage them by heat. The die parts comprise two opposed inner frustoconical parts and an outer part having a double frustoconical recess receiving the inner parts. The die space decreases in size as the inner die parts move toward one another against the outer part and the inner parts, though very hard, do not fracture because of the mode of support provided by the outer part.

  20. Heated die facilitates tungsten forming

    NASA Technical Reports Server (NTRS)

    Chattin, J. H.; Haystrick, J. E.; Laughlin, J. C.; Leidy, R. A.

    1966-01-01

    Tungsten forming in a press brake employs a bottom die assembly with a heating manifold between two water-cooled die sections. The manifold has hydrogen-oxygen burners spaced along its length for even heat during forming.

  1. Protein patterning by microcontact printing using pyramidal PDMS stamps.

    PubMed

    Filipponi, Luisa; Livingston, Peter; Kašpar, Ondřej; Tokárová, Viola; Nicolau, Dan V

    2016-02-01

    Micro-contact printing, μCP, is a well-established soft-lithography technique for printing biomolecules. μCP uses stamps made of Poly(dimethylsiloxane), PDMS, made by replicating a microstructured silicon master fabricated by semiconductor manufacturing processes. One of the problems of the μCP is the difficult control of the printing process, which, because of the high compressibility of PDMS, is very sensitive to minute changes in the applied pressure. This over-sensitive response leads to frequent and/or uncontrollable collapse of the stamps with high aspect ratios, thus decreasing the printing accuracy and reproducibility. Here we present a straightforward methodology of designing and fabricating PDMS structures with an architecture which uses the collapse of the stamp to reduce, rather than enlarge the variability of the printing. The PDMS stamp, organized as an array of pyramidal micro-posts, whose ceiling collapses when pressed on a flat surface, replicates the structure of the silicon master fabricated by anisotropic wet etching. Upon application of pressure, depending on the size of, and the pitch between, the PDMS pyramids, an air gap is formed surrounding either the entire array, or individual posts. The printing technology, which also exhibits a remarkably low background noise for fluorescence detection, may find applications when the clear demarcation of the shapes of protein patterns and the distance between them are critical, such as microarrays and studies of cell patterning. PMID:26782964

  2. Massively Parallel Processing for Fast and Accurate Stamping Simulations

    NASA Astrophysics Data System (ADS)

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

    2005-08-01

    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.

  3. Food Stamps. Learning Packet No. 2.

    ERIC Educational Resources Information Center

    American Bar Association, Washington, DC. Clearinghouse for Offender Literacy Programs.

    This package of instructional materials is designed to aid adults in prison to perform the functional skill of applying for food stamps. The materials consist of instructions for teachers, a sample application for food stamps, a student's work sheet and answer sheet, vocabulary flash cards, and resource materials on food stamps. (MKM)

  4. Direct drive digital servo press with high parallel control

    NASA Astrophysics Data System (ADS)

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

    2013-12-01

    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 μm 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.

  5. 25 CFR 304.5 - Dies to identify tribe.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 2 2013-04-01 2013-04-01 false Dies to identify tribe. 304.5 Section 304.5 Indians INDIAN ARTS AND CRAFTS BOARD, DEPARTMENT OF THE INTERIOR NAVAJO, PUEBLO, AND HOPI SILVER, USE OF GOVERNMENT MARK § 304.5 Dies to identify tribe. Dies are marked with name of tribe. A Navajo stamp will...

  6. 25 CFR 304.5 - Dies to identify tribe.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 2 2011-04-01 2011-04-01 false Dies to identify tribe. 304.5 Section 304.5 Indians INDIAN ARTS AND CRAFTS BOARD, DEPARTMENT OF THE INTERIOR NAVAJO, PUEBLO, AND HOPI SILVER, USE OF GOVERNMENT MARK § 304.5 Dies to identify tribe. Dies are marked with name of tribe. A Navajo stamp will...

  7. 25 CFR 304.5 - Dies to identify tribe.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 2 2010-04-01 2010-04-01 false Dies to identify tribe. 304.5 Section 304.5 Indians INDIAN ARTS AND CRAFTS BOARD, DEPARTMENT OF THE INTERIOR NAVAJO, PUEBLO, AND HOPI SILVER, USE OF GOVERNMENT MARK § 304.5 Dies to identify tribe. Dies are marked with name of tribe. A Navajo stamp will...

  8. 25 CFR 304.5 - Dies to identify tribe.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 2 2014-04-01 2014-04-01 false Dies to identify tribe. 304.5 Section 304.5 Indians INDIAN ARTS AND CRAFTS BOARD, DEPARTMENT OF THE INTERIOR NAVAJO, PUEBLO, AND HOPI SILVER, USE OF GOVERNMENT MARK § 304.5 Dies to identify tribe. Dies are marked with name of tribe. A Navajo stamp will...

  9. 25 CFR 304.5 - Dies to identify tribe.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 2 2012-04-01 2012-04-01 false Dies to identify tribe. 304.5 Section 304.5 Indians INDIAN ARTS AND CRAFTS BOARD, DEPARTMENT OF THE INTERIOR NAVAJO, PUEBLO, AND HOPI SILVER, USE OF GOVERNMENT MARK § 304.5 Dies to identify tribe. Dies are marked with name of tribe. A Navajo stamp will...

  10. Characterization of the interfacial heat transfer coefficient for hot stamping processes

    NASA Astrophysics Data System (ADS)

    Luan, Xi; Liu, Xiaochuan; Fang, Haomiao; Ji, Kang; El Fakir, Omer; Wang, LiLiang

    2016-08-01

    In hot stamping processes, the interfacial heat transfer coefficient (IHTC) between the forming tools and hot blank is an essential parameter which determines the quenching rate of the process and hence the resulting material microstructure. The present work focuses on the characterization of the IHTC between an aluminium alloy 7075-T6 blank and two different die materials, cast iron (G3500) and H13 die steel, at various contact pressures. It was found that the IHTC between AA7075 and cast iron had values 78.6% higher than that obtained between AA7075 and H13 die steel. Die materials and contact pressures had pronounced effects on the IHTC, suggesting that the IHTC can be used to guide the selection of stamping tool materials and the precise control of processing parameters.

  11. 78 FR 10201 - Proposed Information Collection; Electronic Duck Stamp Program

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-13

    ... Fish and Wildlife Service Proposed Information Collection; Electronic Duck Stamp Program AGENCY: Fish... buy a Federal migratory bird hunting and conservation stamp (Federal Duck Stamp) annually. The stamps... sale of Federal Duck Stamps goes directly to purchase or lease wetland habitat for protection in...

  12. 46 CFR 53.10-10 - Certification by stamping.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... (incorporated by reference; see 46 CFR 53.01-1). ... Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING HEATING BOILERS Tests, Inspection, Stamping, and Reporting (Article 5) § 53.10-10 Certification by stamping. Stamping of...

  13. 46 CFR 53.10-10 - Certification by stamping.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... (incorporated by reference; see 46 CFR 53.01-1). ... Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING HEATING BOILERS Tests, Inspection, Stamping, and Reporting (Article 5) § 53.10-10 Certification by stamping. Stamping of...

  14. 46 CFR 53.10-10 - Certification by stamping.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... (incorporated by reference; see 46 CFR 53.01-1). ... Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING HEATING BOILERS Tests, Inspection, Stamping, and Reporting (Article 5) § 53.10-10 Certification by stamping. Stamping of...

  15. 46 CFR 53.10-10 - Certification by stamping.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... (incorporated by reference; see 46 CFR 53.01-1). ... Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING HEATING BOILERS Tests, Inspection, Stamping, and Reporting (Article 5) § 53.10-10 Certification by stamping. Stamping of...

  16. 46 CFR 53.10-10 - Certification by stamping.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... (incorporated by reference; see 46 CFR 53.01-1). ... Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING HEATING BOILERS Tests, Inspection, Stamping, and Reporting (Article 5) § 53.10-10 Certification by stamping. Stamping of...

  17. Micromechanical exfoliation of two-dimensional materials by a polymeric stamp

    NASA Astrophysics Data System (ADS)

    Ferraz da Costa, M. C.; Ribeiro, H. B.; Kessler, F.; de Souza, E. A. T.; Fechine, G. J. M.

    2016-02-01

    In this work, an alternative technique to the traditional micromechanical exfoliation of two-dimensional materials is proposed, consisting of isolated flakes of graphite and molybdenum disulphide onto polymeric surfaces films. The set made up of polymer and flakes is fabricated by using a hot-press machine called polymeric stamp. The polymeric stamp was used to allocate flakes and also to allow the exfoliation process to take place just in one face of isolated flake. Optical microscopy, Raman spectroscopy and photoluminescence spectroscopy results showed that multilayers, bilayers and single layers of graphene and MoS2 were obtained by using a polymeric stamp as tool for micromechanical exfoliation. These crystals were more easily found because the exfoliation process concentrates them in well-defined locations. The results prove the effectiveness of the method by embedding two-dimensional materials into polymers to fabricate fewer layers crystals in a fast, economic and clean way.

  18. Site-specific stamping of graphene micro-patterns over large areas using flexible stamps.

    PubMed

    Chen, Chun-Hu; Reddy, Kongara M; Padture, Nitin P

    2012-06-15

    Site-specific stamping has the potential of becoming a low-cost, high-throughput method for depositing specific-shaped graphene micro-patterns over large areas on a wide variety of substrates. The use of an approach involving flexible stamps presented here represents an important advance towards reaching that potential. This approach entails lithographic creation (dry etching) of high-quality micro-pillar arrays of highly oriented pyrolytic graphite (HOPG) over large areas. This is followed by embedding the micro-pillar arrays in polydimethylsiloxane (PDMS), and detaching them from the HOPG base. This results in flexible stamps containing embedded HOPG micro-pillar arrays with freshly cleaved stamping surfaces. The flexible HOPG/PDMS stamps are then brought into contact with substrate surfaces to site-specifically stamp graphene or few-layer graphene (FLG) arrays over large areas. The freshly cleaved nature of the micro-pillar surfaces in the flexible stamps, the low elastic modulus of the flexible stamps and the elimination of sidewall deposits on the micro-pillars allow for more uniform stamping, relative to the use of stiff HOPG stamps from earlier studies. This approach has the potential to expand the substrate choice for graphene or FLG stamping to include curved and/or flexible substrates that could have an impact on the burgeoning field of flexible/stretchable electronics. PMID:22595887

  19. Site-specific stamping of graphene micro-patterns over large areas using flexible stamps

    NASA Astrophysics Data System (ADS)

    Chen, Chun-Hu; Reddy, Kongara M.; Padture, Nitin P.

    2012-06-01

    Site-specific stamping has the potential of becoming a low-cost, high-throughput method for depositing specific-shaped graphene micro-patterns over large areas on a wide variety of substrates. The use of an approach involving flexible stamps presented here represents an important advance towards reaching that potential. This approach entails lithographic creation (dry etching) of high-quality micro-pillar arrays of highly oriented pyrolytic graphite (HOPG) over large areas. This is followed by embedding the micro-pillar arrays in polydimethylsiloxane (PDMS), and detaching them from the HOPG base. This results in flexible stamps containing embedded HOPG micro-pillar arrays with freshly cleaved stamping surfaces. The flexible HOPG/PDMS stamps are then brought into contact with substrate surfaces to site-specifically stamp graphene or few-layer graphene (FLG) arrays over large areas. The freshly cleaved nature of the micro-pillar surfaces in the flexible stamps, the low elastic modulus of the flexible stamps and the elimination of sidewall deposits on the micro-pillars allow for more uniform stamping, relative to the use of stiff HOPG stamps from earlier studies. This approach has the potential to expand the substrate choice for graphene or FLG stamping to include curved and/or flexible substrates that could have an impact on the burgeoning field of flexible/stretchable electronics.

  20. Volcanology by Courier: Science in Stamps.

    ERIC Educational Resources Information Center

    Glenn, William H.

    1981-01-01

    Summarized are five activities involving collection of postage stamps picturing volcanoes or related scenes for use as part of or at the conclusion of the study of volcanoes. Activity topics include volcanic features, location of volcanoes, related land features where volcanoes are not located, and making one's own volcano stamps. (DS)

  1. Stamping Line Optimization Using Genetic Algorithms and Virtual 3D Line Simulation

    NASA Astrophysics Data System (ADS)

    García-Sedano, Javier A.; Bernardo, Jon Alzola; González, Asier González; de Gauna, Óscar Berasategui Ruiz; de Mendivil, Rafael Yuguero González

    This paper describes the use of a genetic algorithm (GA) in order to optimize the trajectory followed by industrial robots (IRs) in stamping lines. The objective is to generate valid paths or trajectories without collisions in order to minimize the cycle time required to complete all the operations in an individual stamping cell of the line. A commercial software tool is used to simulate the virtual trajectories and potential collisions, taking into account the specific geometries of the different parts involved: robot arms, columns, dies and manipulators. Then, a genetic algorithm is proposed to optimize trajectories. Both systems, the GA and the simulator, communicate as client - server in order to evaluate solutions proposed by the GA. The novelty of the idea is to consider the geometry of the specific components to adjust robot paths to optimize cycle time in a given stamping cell.

  2. Integrated software package STAMP for minor planets

    NASA Technical Reports Server (NTRS)

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

    1992-01-01

    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.

  3. 26 CFR 301.6806-1 - Posting occupational tax stamps.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 18 2011-04-01 2011-04-01 false Posting occupational tax stamps. 301.6806-1... Posting occupational tax stamps. For provisions relating to the posting of specific stamps used with... occupational tax stamps, see section 7273....

  4. 26 CFR 301.6806-1 - Posting occupational tax stamps.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 18 2010-04-01 2010-04-01 false Posting occupational tax stamps. 301.6806-1... Posting occupational tax stamps. For provisions relating to the posting of specific stamps used with... occupational tax stamps, see section 7273....

  5. 26 CFR 301.6806-1 - Posting occupational tax stamps.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 18 2012-04-01 2012-04-01 false Posting occupational tax stamps. 301.6806-1... Posting occupational tax stamps. For provisions relating to the posting of specific stamps used with... occupational tax stamps, see section 7273....

  6. 26 CFR 301.6806-1 - Posting occupational tax stamps.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 18 2014-04-01 2014-04-01 false Posting occupational tax stamps. 301.6806-1... Posting occupational tax stamps. For provisions relating to the posting of specific stamps used with... occupational tax stamps, see section 7273....

  7. 26 CFR 301.6806-1 - Posting occupational tax stamps.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 18 2013-04-01 2013-04-01 false Posting occupational tax stamps. 301.6806-1... Posting occupational tax stamps. For provisions relating to the posting of specific stamps used with... occupational tax stamps, see section 7273....

  8. 44. INTERIOR VIEW LOOKING NORTH NORTHWEST BEHIND THE STAMP BATTERIES. ...

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

    44. INTERIOR VIEW LOOKING NORTH NORTHWEST BEHIND THE STAMP BATTERIES. THIS IS A CLOSE UP VIEW OF THE STAMP SHAFTS WITH THE TAPPETS AND WOODEN STOPS THAT WERE USED TO PLACE THE STAMPS IN AN UP POSITION TO CLEAN OR REPLACE THE STAMP SHOES IN THE MORTAR BOX. - Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mono County, CA

  9. Usage and Recall of the Food Stamp Office Resource Kit (FSORK) by Food Stamp Applicants in 4 California Counties

    ERIC Educational Resources Information Center

    Ghirardelli, Alyssa; Linares, Amanda; Fong, Amy

    2011-01-01

    Objective: To evaluate recall and usage of the Food Stamp Office Resource Kit (FSORK), a set of nutrition education materials designed for use in food stamp offices. Design: Client intercept exit surveys, an environmental scan, and individual observations of clients in the food stamp office. Setting: Four food stamp offices in California.…

  10. 49 CFR 179.100-20 - Stamping.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... outside heads as follows: Example of required stamping Specification DOT-105A100W Material ASTM A 516 Cladding material (if any) ASTM A240-304 Tank builder's initials Clad Date of original test ABC...

  11. 49 CFR 179.200-24 - Stamping.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... outside heads as follows: Example of required stamping Specification DOT-111A Material ASTM A 516-GR 70 Cladding material (if any) ASTM A240-304 Clad Tank builder's initials ABC Date of original test 00-0000...

  12. 7 CFR 916.115 - Lot stamping.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... and Regulations § 916.115 Lot stamping. Except when loaded directly into railway cars, exempted under... inspected in accordance with § 916.55: Provided, That pallets of returnable plastic containers shall...

  13. Stamping SERS for creatinine sensing

    NASA Astrophysics Data System (ADS)

    Li, Ming; Du, Yong; Zhao, Fusheng; Zeng, Jianbo; Santos, Greggy M.; Mohan, Chandra; Shih, Wei-Chuan

    2015-03-01

    Urine can be obtained easily, readily and non-invasively. The analysis of urine can provide metabolic information of the body and the condition of renal function. Creatinine is one of the major components of human urine associated with muscle metabolism. Since the content of creatinine excreted into urine is relatively constant, it is used as an internal standard to normalize water variations. Moreover, the detection of creatinine concentration in urine is important for the renal clearance test, which can monitor the filtration function of kidney and health status. In more details, kidney failure can be imminent when the creatinine concentration in urine is high. A simple device and protocol for creatinine sensing in urine samples can be valuable for point-of-care applications. We reported quantitative analysis of creatinine in urine samples by using stamping surface enhanced Raman scattering (S-SERS) technique with nanoporous gold disk (NPGD) based SERS substrate. S-SERS technique enables label-free and multiplexed molecular sensing under dry condition, while NPGD provides a robust, controllable, and high-sensitivity SERS substrate. The performance of S-SERS with NGPDs is evaluated by the detection and quantification of pure creatinine and creatinine in artificial urine within physiologically relevant concentration ranges.

  14. Kiln for hot-pressing compacts in a continuous manner

    DOEpatents

    Reynolds, C.D Jr.

    1983-08-08

    The invention is directed to a hot pressing furnace or kiln which is capable of preheating, hot pressing, and cooling a plurality of articles in a sequential and continuous manner. The hot pressing furnace of the present invention comprises an elongated, horizontally disposed furnace capable of holding a plurality of displaceable pusher plates each supporting a die body loaded with refractory or ceramic material to be hot pressed. Each of these plates and the die body supported thereby is sequentially pushed through the preheating zone, a temperature stabilizing and a hot pressing zone, and a cooling zone so as to provide a continuous hot-pressing operation of a plurality of articles.

  15. Kiln for hot-pressing compacts in a continuous manner

    DOEpatents

    Reynolds, Jr., Carl D.

    1985-01-01

    The present invention is directed to a hot pressing furnace or kiln which is capable of preheating, hot pressing, and cooling a plurality of articles in a sequential and continuous manner. The hot pressing furnace of the present invention comprises an elongated, horizontally disposed furnace capable of holding a plurality of displaceable pusher plates each supporting a die body loaded with refractory or ceramic material to be hot pressed. Each of these plates and the die body supported thereby is sequentially pushed through the preheating zone, a temperature stabilizing and a hot pressing zone, and a cooling zone so as to provide a continuous hot-pressing operation of a plurality of articles.

  16. Sensitivity Analysis of the Sheet Metal Stamping Processes Based on Inverse Finite Element Modeling and Monte Carlo Simulation

    SciTech Connect

    Yu Maolin; Du, R.

    2005-08-05

    Sheet metal stamping is one of the most commonly used manufacturing processes, and hence, much research has been carried for economic gain. Searching through the literatures, however, it is found that there are still a lots of problems unsolved. For example, it is well known that for a same press, same workpiece material, and same set of die, the product quality may vary owing to a number of factors, such as the inhomogeneous of the workpice material, the loading error, the lubrication, and etc. Presently, few seem able to predict the quality variation, not to mention what contribute to the quality variation. As a result, trial-and-error is still needed in the shop floor, causing additional cost and time delay. This paper introduces a new approach to predict the product quality variation and identify the sensitive design / process parameters. The new approach is based on a combination of inverse Finite Element Modeling (FEM) and Monte Carlo Simulation (more specifically, the Latin Hypercube Sampling (LHS) approach). With an acceptable accuracy, the inverse FEM (also called one-step FEM) requires much less computation load than that of the usual incremental FEM and hence, can be used to predict the quality variations under various conditions. LHS is a statistical method, through which the sensitivity analysis can be carried out. The result of the sensitivity analysis has clear physical meaning and can be used to optimize the die design and / or the process design. Two simulation examples are presented including drawing a rectangular box and drawing a two-step rectangular box.

  17. Time to pay attention: attentional performance time-stamped prefrontal cholinergic activation, diurnality and performance

    PubMed Central

    Paolone, Giovanna; Lee, Theresa M.; Sarter, Martin

    2012-01-01

    Although the impairments in cognitive performance that result from shifting or disrupting daily rhythms have been demonstrated, the neuronal mechanisms that optimize fixed time daily performance are poorly understood. We previously demonstrated that daily practice of a sustained attention task (SAT) evokes a diurnal activity pattern in rats. Here we report that SAT practice at a fixed time produced practice time-stamped increases in prefrontal cholinergic neurotransmission that persisted after SAT practice was terminated and in a different environment. SAT time-stamped cholinergic activation occurred irrespective of whether the SAT was practiced during the light or dark phase or in constant light conditions. In contrast, prior daily practice of an operant schedule of reinforcement, albeit generating more rewards and lever presses per session than the SAT, neither activated the cholinergic system nor affected the animals' nocturnal activity pattern. Likewise, food-restricted animals exhibited strong food anticipatory activity (FAA) and attenuated activity during the dark period but FAA was not associated with increases in prefrontal cholinergic activity. Removal of cholinergic neurons impaired SAT performance and facilitated the reemergence of nocturnality. Shifting SAT practice away from a fixed time resulted in significantly lower performance. In conclusion, these experiments demonstrated that fixed time, daily practice of a task assessing attention generates a precisely practice time-stamped activation of the cortical cholinergic input system. Time-stamped cholinergic activation benefits fixed time performance and, if practiced during the light phase, contributes to a diurnal activity pattern. PMID:22933795

  18. [The stamp technique for direct composite restoration].

    PubMed

    Perrin, Philippe; Zimmerli, Brigitte; Jacky, Daniel; Lussi, Adrian; Helbling, Christoph; Ramseyer, Simon

    2013-01-01

    The indications for direct resin composite restorations are nowadays extended due to the development of modern resin materials with improved material properties. However, there are still some difficulties regarding handling of resin composite material, especially in large restorations. The reconstruction of a functional and individual occlusion is difficult to achieve with direct application techniques. The aim of the present publication was to introduce a new "stamp"-technique for placing large composite restorations. The procedure of this "stamp"-technique is presented by three typical indications: large single-tooth restoration, occlusal rehabilitation of a compromised occlusal surface due to erosions and direct fibre-reinforced fixed partial denture. A step-by-step description of the technique and clinical figures illustrates the method. Large single-tooth restorations can be built-up with individual, two- piece silicone stamps. Large occlusal abrasive and/or erosive defects can be restored by copying the wax-up from the dental technician using the "stamp"-technique. Even fiber-reinforced resin-bonded fixed partial dentures can be formed with this intraoral technique with more precision and within a shorter treatment time. The presented "stamp"-technique facilitates the placement of large restoration with composite and can be recommended for the clinical use.

  19. Fabrication of nanoimprint stamp and its application

    NASA Astrophysics Data System (ADS)

    Ting, Yung-Chiang; Shy, Shyi-Long

    2006-05-01

    Nanoimprint technology is placed on the ITRS 04 for the 32nm and 22nm technology node (half pitch of metal 1 layer for DRAM) competing technologies, which can also reach the throughput requirements of SEMI: EUV, DUV, X-ray and Electron projection lithography. Nanoimprint technology can be used for mainstream IC, nanoelectronics, polymer electronics, optics (wave guides, switches, lenses), data storage, biochemistry, life science (DNA), μTAS and microfluidics. However, the technology key of nanoimprint is stamp fabrication. In this paper, high resolution electron beam resist ZEP520 is used for the fabrication of 32 and 22nm nanoimprint stamp, PDMS material for nanoimprint is evaluated and the applications of nanoimprint technology using PDMS stamp for semiconductor, optoelectronics and biotechnology are presented.

  20. 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

  1. Multiple program participation and exits from food stamps among elders.

    PubMed

    Issar, Sukriti

    2010-01-01

    This article uses population-level administrative data from Rhode Island's Food Stamp Program to examine exits from the Food Stamp Program by elders. Multivariate event history models estimate the relations of multiple program participation and the timing of eligibility reviews to the probability of exiting food stamps. Results suggest that elders who are age 65 or older and who receive both Supplemental Security Income and food stamps have a higher probability of exiting the Food Stamp Program than do elders who receive only food stamps. The timing of eligibility reviews is also found to be positively associated with the probability of exit from food stamps. This article is argued to extend conceptual models of the determinants of food stamp exits. PMID:20873021

  2. Remote plunger removal device for small-scale incremental pressing

    SciTech Connect

    Burnside, N.J.; Son, S.F.; Asay, B.W.

    1997-09-01

    Small-scale pressing of high explosives (HE) at Los Alamos National Laboratory (LANL) and elsewhere is routinely performed using pneumatic presses. Blast shields provide protection to the operator during the pressing procedure, but safety of the operator is a concern during removal of the plunger, which is currently performed manually. To minimize this risk, very high tolerances between the plunger and the die are required. These tolerances are often very costly, especially in the case of long, relatively narrow dies. The safety issue is an even greater concern with incremental pressing in which cleaning the die between increments is difficult or impossible. To better protect press operators, a device has been designed and constructed to allow remote plunger removal in a standard HE press. In this report the authors describe this modified press that allows remote removal of the plunger.

  3. 46 CFR 54.10-20 - Marking and stamping.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING PRESSURE VESSELS Inspection, Reports, and Stamping § 54.10-20 Marking and stamping. (a) Pressure vessels (replaces UG-116, except paragraph (k), and UG-118). Pressure vessels that are required by § 54.10-3 to be stamped with the...

  4. Pixel Palette: Put Your Stamp on It.

    ERIC Educational Resources Information Center

    Osterer, Irv

    1998-01-01

    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)

  5. "Duck stamp" dollars reserve native prairie tracts

    USGS Publications Warehouse

    Higgins, K.F.

    1981-01-01

    Ducks and wetlands are inseparable in the prairies. Hunters know this, bird watchers know this, wildlife managers know this, and most importantly people who manage the croplands and rangelands know this. The 1,746 tracts of native prairie within these upland-wetland complexes known as Waterfowl Production Areas are not the only lands purchased with "duck stamp" dollars. Considerable acreages have also been purchased in central and southern parts of the United States to provide staging, resting, and wintering areas for waterfowl. Since 1934, when "duck stamps" were first sold, nearly 2.5 million acres of waterfowl habitats have been acquired or taken under easement within the United States with revenue from these sales. By purchasing "duck stamps", more than 2.2 million people provide over $16.5 million in annual revenue. It is certainly gratifying to know that some of the remaining native prairie remnants in the Northern Great Plains are being reserved for the future with "duck stamp" dollars.

  6. 49 CFR 179.100-20 - Stamping.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... plates in conformance with the applicable requirements prescribed in § 179.24(a). Tank cars built before... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) SPECIFICATIONS FOR TANK CARS Specifications for Pressure Tank Car Tanks (Classes DOT-105, 109, 112, 114 and 120) § 179.100-20 Stamping. (a) To certify that...

  7. 49 CFR 179.200-24 - Stamping.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... prescribed in § 179.24(a). Tank cars built before July 25, 2012, may have the identification plates instead... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) SPECIFICATIONS FOR TANK CARS Specifications for Non-Pressure Tank Car Tanks (Classes DOT-111AW and 115AW) § 179.200-24 Stamping. (a) To certify that the...

  8. 49 CFR 179.220-25 - Stamping.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...). Tank cars built before July 25, 2012, may have the identification plates instead of or in addition to... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) SPECIFICATIONS FOR TANK CARS Specifications for Non-Pressure Tank Car Tanks (Classes DOT-111AW and 115AW) § 179.220-25 Stamping. (a) To certify that the...

  9. 49 CFR 179.200-24 - Stamping.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... prescribed in § 179.24(a). Tank cars built before July 25, 2012, may have the identification plates instead... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) SPECIFICATIONS FOR TANK CARS Specifications for Non-Pressure Tank Car Tanks (Classes DOT-111AW and 115AW) § 179.200-24 Stamping. (a) To certify that the...

  10. 49 CFR 179.200-24 - Stamping.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... prescribed in § 179.24(a). Tank cars built before July 25, 2012, may have the identification plates instead... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) SPECIFICATIONS FOR TANK CARS Specifications for Non-Pressure Tank Car Tanks (Classes DOT-111AW and 115AW) § 179.200-24 Stamping. (a) To certify that the...

  11. 48 CFR 246.472 - Inspection stamping.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Inspection stamping. 246.472 Section 246.472 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM, DEPARTMENT OF DEFENSE CONTRACT MANAGEMENT QUALITY ASSURANCE Government Contract Quality Assurance...

  12. 49 CFR 179.400-24 - Stamping.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... on a data plate of corrosion-resistant metal, fillet welded in place on the head of the outer jacket... permanently stamped into the metal near the center of the head of the outer jacket at the “B” end of the...

  13. Stamps Tell the Story of Nuclear Energy.

    ERIC Educational Resources Information Center

    Angelo, Joseph A., Jr.

    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)

  14. 27 CFR 479.162 - Stamps authorized.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2011-04-01 2010-04-01 true Stamps authorized. 479.162 Section 479.162 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND...

  15. 27 CFR 479.162 - Stamps authorized.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2014-04-01 2014-04-01 false Stamps authorized. 479.162 Section 479.162 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND...

  16. 27 CFR 479.162 - Stamps authorized.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2012-04-01 2010-04-01 true Stamps authorized. 479.162 Section 479.162 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND...

  17. 27 CFR 479.162 - Stamps authorized.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2010-04-01 2010-04-01 false Stamps authorized. 479.162 Section 479.162 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND...

  18. 27 CFR 479.162 - Stamps authorized.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2013-04-01 2013-04-01 false Stamps authorized. 479.162 Section 479.162 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND...

  19. HSQ resist for replication stamp in polymers

    NASA Astrophysics Data System (ADS)

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

    2012-03-01

    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.

  20. An Optimization Study of Hot Stamping Operation

    NASA Astrophysics Data System (ADS)

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

    2010-06-01

    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.

  1. Chemically patterned flat stamps for microcontact printing.

    PubMed

    Sharpe, Ruben B A; Burdinski, Dirk; Huskens, Jurriaan; Zandvliet, Harold J W; Reinhoudt, David N; Poelsema, Bene

    2005-07-27

    Locally oxidized patterns on flat poly(dimethylsiloxane) stamps for microcontact printing were used as a platform for the transfer of a hydrophilic fluorescent ink to a glass substrate. The contrast was found to be limited. These locally oxidized patterns were conversely used as barriers for the transfer of hydrophobic n-octadecanethiol. In this case a good contrast was obtained, but the pattern was found to be susceptible to defects (cracks) in the barrier layer. Local stamp surface oxidation and subsequent modification with 1H,1H,2H,2H-perfluorodecyltrichlorosilane, for use as a barrier in the transfer of n-octadecanethiol, 16-mercaptohexadecanoic acid, and octanethiol, resulted in remarkably good contrast and stable patterns. The improved ink transfer control is ascribed to the reduction of undesired surface spreading and a superior mechanical stability of the stamp pattern. This new approach substantially expands the applicability of microcontact printing and provides a tool for the faithful reproduction of even extremely low filling ratio patterns.

  2. Press Start

    NASA Astrophysics Data System (ADS)

    Harteveld, Casper

    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!”

  3. 26 CFR 1.451-4 - Accounting for redemption of trading stamps and coupons.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... method taxpayer is engaged in the business of selling trading stamps or premium coupons, and such stamps... considered as being in the business of selling trading stamps or premium coupons if— (i) The trading stamps... services, (ii) The principal activity of the trade or business is the sale of such stamps or coupons,...

  4. Construction of a test bench for closed die forging

    NASA Astrophysics Data System (ADS)

    Batit, G.; Kaczmarek, B.; Ravassard, P.

    1984-03-01

    A swan neck press was equipped with hydraulic jacks to enable it to press and forge complex shapes in closed dies in one operation without wasting metal. Maximum closing stress is 250 kN, maximum pressing stress is 250 kN, maximum forging stress is 70 kN.

  5. Exploring the World of Stamps in Your Classroom. A Teacher's Guide to Stamp Collecting.

    ERIC Educational Resources Information Center

    Post Office Dept., Washington, DC.

    Learning activities for using postage stamps in a variety of disciplines in elementary and secondary classrooms are presented. The book is divided into four sections. Following section 1, the introduction, section 2 presents 14 lesson plans, ranging in required class time from 15 minutes to several days. Each lesson focuses on a particular skill…

  6. Registration of point cloud data for HDD stamped base inspection

    NASA Astrophysics Data System (ADS)

    Suh, Sungho; Cho, Hansang

    2015-09-01

    As a part of the HDD manufacturing process, HDD stamped base, an exterior container, is one of the most essential components in which various parts become assembled to compose a hard disk drive (HDD). Height errors that are caused by pressing, breaking or cracking can occur on the base, because it is designed by a stamping method. In order to detect the height errors, the inspection process is essential in the production fields. In the current industry, CMM (Coordinate Measurement Machine) is one of the representative machines that inspect certain regions on the product. The machine probes a designated point by an operator and judges the defect by comparing the height of the point to the originally designed height. However, the method takes much time to inspect each designated point resulting in a total of 17 minutes. In order to reduce the total inspection time, we propose an inspection method using 3D point cloud data acquired from a holographic sensor. To compare the height from acquired 3D point cloud data with the one from the originally designed CAD data, the exact point cloud registration is important. There are differences between 2D image registration and 3D point cloud registration, such as translation on each plane, rotation, tilt, and nonlinear transformations. The relationship between the acquired 3D point cloud data and the originally designed CAD data can be obtained by projective transformation. If the projective transformation matrix between the two is obtained, 3D point cloud data registration can be performed. In order to calculate 3D projective transformation matrix, corresponding points between 3D point cloud data and CAD data are required. To find the corresponding points, we use the height map which is projected from 3D point cloud data onto XY plane. The height map has pixel intensity from the height value of each point. If the height maps from 3D point cloud data and CAD data are matched, corresponding points can be estimated. As one of the

  7. Polymer Stamps for Imprinting Nanopatterns in Polymer Substrate.

    PubMed

    Wu, Jiahao; Amirsadeghi, Alborz; Kim, Jinsoo; Park, Sunggook

    2015-01-01

    Using a silicone or metallic stamp for imprinting multiscale patterns comprising micro down to nanoscale patterns into polymer substrates often results in significant deformation in the molded substrate and loss of pattern transfer fidelity for nanopatterns. In the worst case, the expensive stamp can also be damaged. One method to reduce the problem is to use polymer as the stamp material, which will reduce both adhesion and thermal stress generated at the stamp/substrate interface. In this paper, stamps made of three different polymer materials, i.e., polydimethylsiloxane (PDMS), PPGDA-based UV resin and TPGDA-based UV-resin, were fabricated from the same master containing nanofluidic structures and the replication fidelity from the master, polymer stamps, to thermal-imprinted poly(methyl methacrylate) substrate (PMMA) was compared. The largest loss of pattern fidelity occurs in the thermal imprinting step. Polymer stamps with higher Young's moduli result in a better fidelity in pattern transfer. With TPGDA-based UV resin stamps, multiscale structures with a nanochannel with minimum width and height of -70 nm can be imprinted onto PMMA substrate together with macro-scale patterns by a single nanoimprinting processes. PMID:26328384

  8. 27 CFR 46.132 - Credit for incorrect stamp.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2014-04-01 2014-04-01 false Credit for incorrect stamp... Liability § 46.132 Credit for incorrect stamp. (a) General. The appropriate TTB officer may credit the tax... for credit. (b) Underpayment. Where the correct tax (including any additions thereto) exceeds...

  9. 27 CFR 46.132 - Credit for incorrect stamp.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2013-04-01 2013-04-01 false Credit for incorrect stamp... Liability § 46.132 Credit for incorrect stamp. (a) General. The appropriate TTB officer may credit the tax... for credit. (b) Underpayment. Where the correct tax (including any additions thereto) exceeds...

  10. The Stamp Act in Georgia, 1765-1766.

    ERIC Educational Resources Information Center

    Cook, James F.

    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…

  11. 27 CFR 28.101 - Packages to be stamped.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... provisions of 27 CFR part 19 prior to its removal from the bonded premises. (Approved by the Office of... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Packages to be stamped. 28... to a Manufacturing Bonded Warehouse § 28.101 Packages to be stamped. Each package and authorized...

  12. 27 CFR 28.101 - Packages to be stamped.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... provisions of 27 CFR part 19 prior to its removal from the bonded premises. (Approved by the Office of... 27 Alcohol, Tobacco Products and Firearms 1 2011-04-01 2011-04-01 false Packages to be stamped. 28... to a Manufacturing Bonded Warehouse § 28.101 Packages to be stamped. Each package and authorized...

  13. 27 CFR 28.101 - Packages to be stamped.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... provisions of 27 CFR part 19 prior to its removal from the bonded premises. (Approved by the Office of... 27 Alcohol, Tobacco Products and Firearms 1 2012-04-01 2012-04-01 false Packages to be stamped. 28... to a Manufacturing Bonded Warehouse § 28.101 Packages to be stamped. Each package and authorized...

  14. 27 CFR 28.101 - Packages to be stamped.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... provisions of 27 CFR part 19 prior to its removal from the bonded premises. (Approved by the Office of... 27 Alcohol, Tobacco Products and Firearms 1 2014-04-01 2014-04-01 false Packages to be stamped. 28... to a Manufacturing Bonded Warehouse § 28.101 Packages to be stamped. Each package and authorized...

  15. 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

  16. 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

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

    NASA Astrophysics Data System (ADS)

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

    2013-04-01

    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.

  18. Stamping and wrinkling of elastic plates.

    PubMed

    Hure, Jérémy; Roman, Benoît; Bico, José

    2012-08-01

    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 minimum 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 the 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.

  19. Authentication, Time-Stamping and Digital Signatures

    NASA Technical Reports Server (NTRS)

    Levine, Judah

    1996-01-01

    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.

  20. Method for hot pressing irregularly shaped refractory articles

    DOEpatents

    Steinkamp, William E.; Ballard, Ambrose H.

    1982-01-01

    The present invention is directed to a method for hot pressing irregularly haped refractory articles with these articles of varying thickness being provided with high uniform density and dimensional accuracy. Two partially pressed compacts of the refractory material are placed in a die cavity between displaceable die punches having compact-contacting surfaces of the desired article configuration. A floating, rotatable block is disposed between the compacts. The displacement of the die punches towards one another causes the block to rotate about an axis normal to the direction of movement of the die punches to uniformly distribute the pressure loading upon the compacts for maintaining substantially equal volume displacement of the powder material during the hot pressing operation.

  1. The Global University Press

    ERIC Educational Resources Information Center

    Dougherty, Peter J.

    2012-01-01

    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…

  2. 164. Photocopied July 1978. VIEW OF STEAMTURBINE BUILDING AT STAMP ...

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

    164. Photocopied July 1978. VIEW OF STEAM-TURBINE BUILDING AT STAMP MILL. BUILDING CONSTRUCTED IN 1921 TO USE EXHAUST STEAM TO GENERATE ELECTRICITY. C. 1925. - Quincy Mining Company, Hancock, Houghton County, MI

  3. Facile stamp patterning method for superhydrophilic/superhydrophobic surfaces

    NASA Astrophysics Data System (ADS)

    Lyu, Sungnam; Hwang, Woonbong

    2015-11-01

    Patterning techniques are essential to many research fields such as chemistry, biology, medicine, and micro-electromechanical systems. In this letter, we report a simple, fast, and low-cost superhydrophobic patterning method using a superhydrophilic template. The technique is based on the contact stamping of the surface during hydrophobic dip coating. Surface characteristics were measured using scanning electron microscopy and energy-dispersive X-ray spectroscopic analysis. The results showed that the hydrophilic template, which was contacted with the stamp, was not affected by the hydrophobic solution. The resolution study was conducted using a stripe shaped stamp. The patterned line was linearly proportional to the width of the stamp line with a constant narrowing effect. A surface with regions of four different types of wetting was fabricated to demonstrate the patterning performance.

  4. 11. Detail of log stamp on ends of plank, near ...

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

    11. Detail of log stamp on ends of plank, near the Minnesota end of the bridge - Enloe Bridge No. 90021, Spanning Red River of North between Minnesota & North Dakota on County State Aid Highway 28, Wolverton, Wilkin County, MN

  5. Facile stamp patterning method for superhydrophilic/superhydrophobic surfaces

    SciTech Connect

    Lyu, Sungnam Hwang, Woonbong

    2015-11-16

    Patterning techniques are essential to many research fields such as chemistry, biology, medicine, and micro-electromechanical systems. In this letter, we report a simple, fast, and low-cost superhydrophobic patterning method using a superhydrophilic template. The technique is based on the contact stamping of the surface during hydrophobic dip coating. Surface characteristics were measured using scanning electron microscopy and energy-dispersive X-ray spectroscopic analysis. The results showed that the hydrophilic template, which was contacted with the stamp, was not affected by the hydrophobic solution. The resolution study was conducted using a stripe shaped stamp. The patterned line was linearly proportional to the width of the stamp line with a constant narrowing effect. A surface with regions of four different types of wetting was fabricated to demonstrate the patterning performance.

  6. 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

  7. 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

  8. 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

  9. 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

  10. SMALL DIAMETER STENCILING, ROLLING OVER STAMP. United States Pipe ...

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

    SMALL DIAMETER STENCILING, ROLLING OVER STAMP. - United States Pipe & Foundry Company Plant, Coating, Painting, Lining & Packaging Building, 2023 St. Louis Avenue at I-20/59, Bessemer, Jefferson County, AL

  11. Spacecraft Trajectory Analysis and Mission Planning Simulation (STAMPS) Software

    NASA Technical Reports Server (NTRS)

    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

    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.

  12. 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

  13. 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

  14. Die Face Engineering based Springback Compensation Strategy and Implementation

    NASA Astrophysics Data System (ADS)

    Tang, Arthur; Lee, Wing; He, Jeanne; Xu, Jinbo; Liu, Kesu; Chen, Chin Chun

    2005-08-01

    Springback or shape change has been one of the major challenges in sheet metal fabrication, particularly with increase application of high strength steel (HSS) and aluminum alloys in automotive stamping. Springback, an elastic material recovery after the unloading of stamping tools, causes variations and inconsistencies of final part dimensions. Minor or mild springback usually can be corrected in the re-strike process. Excessive springback must be corrected so the part will be produced within the given design tolerance and dimension. The commonly used Spring Forward approaches and shape compensations such as over-crown and over-bending are proven effective to alleviate excessive springback. To enhance these approaches, a new strategy of Die Face Engineering (DFE) based processing is proposed to quickly and easily to achieve the maximum allowable compensation using the under cut (or die lock) as the primary criteria. The implementation of the die face compensation through iterative FEA calculation, automatic surface mapping, projection and manual morphing are crucial to meet production environment requirements in terms of generating NC quality CAD surfaces of the compensated or morphed die face. In this paper, the strategy of the die face compensation with the consideration of the under cut criteria is presented. The implementation of various processes to enable user to perform the die face compensation task in a production environment is also discussed. Finally, two examples are shown to demonstrate the implementation of the proposed springback compensation scheme based on the combined CAE/CAD methodology.

  15. Die Face Engineering based Springback Compensation Strategy and Implementation

    SciTech Connect

    Tang, Arthur; Lee Wing; He, Jeanne; Xu Jinbo; Liu Kesu; Chen Chinchun

    2005-08-05

    Springback or shape change has been one of the major challenges in sheet metal fabrication, particularly with increase application of high strength steel (HSS) and aluminum alloys in automotive stamping. Springback, an elastic material recovery after the unloading of stamping tools, causes variations and inconsistencies of final part dimensions. Minor or mild springback usually can be corrected in the re-strike process. Excessive springback must be corrected so the part will be produced within the given design tolerance and dimension. The commonly used Spring Forward approaches and shape compensations such as over-crown and over-bending are proven effective to alleviate excessive springback. To enhance these approaches, a new strategy of Die Face Engineering (DFE) based processing is proposed to quickly and easily to achieve the maximum allowable compensation using the under cut (or die lock) as the primary criteria. The implementation of the die face compensation through iterative FEA calculation, automatic surface mapping, projection and manual morphing are crucial to meet production environment requirements in terms of generating NC quality CAD surfaces of the compensated or morphed die face. In this paper, the strategy of the die face compensation with the consideration of the under cut criteria is presented. The implementation of various processes to enable user to perform the die face compensation task in a production environment is also discussed. Finally, two examples are shown to demonstrate the implementation of the proposed springback compensation scheme based on the combined CAE/CAD methodology.

  16. University Presses: Problems and Prospects.

    ERIC Educational Resources Information Center

    Meeker, Robert B.

    Historical information on university presses and their problems are considered. University presses in the United States have their roots in 15th century England when the Oxford University Press was established in 1478. The first U.S. press to use the term "university press" was Cornell University; the press operated from 1869 until it was closed…

  17. Numerical Simulation of Textile Composite Stamping On Double Dome

    SciTech Connect

    Xiongqi Peng; Zia Ur Rehman

    2011-05-04

    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.

  18. Can Food Stamps help to reduce Medicare spending on diabetes?

    PubMed

    Nicholas, Lauren Hersch

    2011-01-01

    Diabetes is rapidly escalating amongst low-income, older adults at great cost to the Medicare program. We use longitudinal survey data from the Health and Retirement Study linked to administrative Medicare records and biomarker data to assess the relationship between Food Stamp receipt and diabetes health outcomes. We find no significant difference in Medicare spending, outpatient utilization, diabetes hospitalizations and blood sugar (HbA1c) levels between recipients and income-eligible non-recipients after controlling for a detailed set of covariates including individual fixed effects and measures of diabetes treatment compliance. As one-third of elderly Food Stamp recipients are currently diabetic, greater coordination between the Food Stamp, Medicare, and Medicaid programs may improve health outcomes for this group. PMID:21112260

  19. 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

  20. High School Press Freedom.

    ERIC Educational Resources Information Center

    Maurer, Diana J.

    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…

  1. High School Press Pressures.

    ERIC Educational Resources Information Center

    Rogers, Luella P.

    History shows that the high school press suffers through cycles that reflect economic factors and cultural climates within communities, states, and the nation. The direction of that cycle in the 1960s and early 1970s was toward more open, free-flowing information by a vigorous student press, but those economic and cultural signs now are pointing…

  2. Lyndon Johnson's Press Conferences.

    ERIC Educational Resources Information Center

    Cooper, Stephen

    Because President Lyndon Johnson understood well the publicity value of the American news media, he sought to exploit them. He saw reporters as "torch bearers" for his programs and policies and used the presidential press conference chiefly for promotional purposes. Although he met with reporters often, his press conferences were usually…

  3. VIEW OF THE INSTALLATION OF AN EXTRUSION PRESS IN THE ...

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

    VIEW OF THE INSTALLATION OF AN EXTRUSION PRESS IN THE HIGH BAY AREA OF BUILDING 865. THE EXTRUSION PRESS WAS USED TO PRODUCE CYLINDRICAL BARS, HOLLOW TUBES, AND SHAPES WITH IRREGULAR CROSS-SECTIONS BY FORCING PREHEATED METAL THROUGH A DIE ORIFICE UNDER HIGH PRESSURE. (5/22/70) - Rocky Flats Plant, Metal Research & Development Laboratory, South of Central Avenue at south end of terminus of Ninth Avenue, Golden, Jefferson County, CO

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

    PubMed

    Su, Yin; Zheng, Yu; Li, Shu

    2012-12-01

    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.

  5. 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

  6. 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

  7. Simple Interface Engineering of Graphene Transistors with Hydrophobizing Stamps.

    PubMed

    Chae, Soo Sang; Choi, Won Jin; Yang, Cheol-Soo; Lee, Tae Il; Lee, Jeong-O

    2016-06-15

    We demonstrate a simple surface engineering method for fabricating graphene transistors by using hydrophobizing stamps. By simply contact-printing hydrophobizing stamp that is made with polydimethylsiloxane (PDMS) on a standard silicon substrate for a certain contact-time, it was possible to control the contact angle of the substrate and electrical characteristics of the graphene transistors supported on the substrate. Moreover, graphene transistors supported on the engineered silicon substrate showed improved performances, including an increase in carrier mobility and loss of hysteresis. As a proof-of-concept experiment, a simple logic gate operation was demonstrated by connecting a pristine graphene device with an interface-engineered device. PMID:27238560

  8. 75 FR 11937 - General Motors Company, Lordstown Stamping Plant, Warren, OH; Notice of Termination of Investigation

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-12

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF LABOR Employment and Training Administration General Motors Company, Lordstown Stamping Plant, Warren, OH; Notice... workers of General Motors Company, Lordstown Stamping Plant, Warren, Ohio. The petitioning group...

  9. 75 FR 15740 - Valentine Tool and Stamping, Inc.: Norton, MA; Notice of Termination of Investigation

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-30

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF LABOR Employment and Training Administration Valentine Tool and Stamping, Inc.: Norton, MA; Notice of Termination... of Valentine Tool and Stamping, Inc., Norton, Massachusetts. The petitioner has requested that...

  10. Barriers to participation in the food stamp program among food pantry clients in Los Angeles.

    PubMed

    Algert, Susan J; Reibel, Michael; Renvall, Marian J

    2006-05-01

    Substantial numbers of food pantry clients are eligible for food stamps but do not receive them. Background characteristics of 14317 food pantry users in Los Angeles were analyzed to provide information helpful in food stamp outreach programs. Ninety percent of food pantry users were living well below poverty level, 59% were Hispanic, and 44% were homeless. Only 15% of the food pantry clients received food stamps, with homelessness and limited English language skills acting as barriers to food stamp program participation.

  11. 3D Structures: Microfluidic Stamping on Sheath Flow (Small 24/2016).

    PubMed

    Yoon, Dong Hyun; Tanaka, Daiki; Sekiguchi, Tetsushi; Shoji, Shuichi

    2016-06-01

    A microfluidic stamping method to form functional shapes on a cross section in fibre-shaped flow is presented by D. H. Yoon and co-workers on page 3224. Microfluidic stamping and overstamping allowed various cross sectional shapes on the three-dimensional flow. Dimension of the flows is controlled via a change in combination of 3D structures and fluidic conditions, which correspond to stamp type and stamping force. PMID:27306739

  12. Method for hot press forming articles

    DOEpatents

    Baker, Robert R.; Hartsock, Dale L.

    1982-01-01

    This disclosure relates to an improved method for achieving the best bond strength and for minimizing distortion and cracking of hot pressed articles. In particular, in a method for hot press forming both an outer facing circumferential surface of and an inner portion of a hub, and of bonding that so-formed outer facing circumferential surface to an inner facing circumferential surface of a pre-formed ring thereby to form an article, the following improvement is made. Normally, in this method, the outside ring is restrained by a restraining sleeve of ring-shaped cross-section having an inside diameter. A die member, used to hot press form the hub, is so-formed as to have an outside diameter sized to engage the inside diameter of the restraining sleeve in a manner permitting relative movement therebetween. The improved method is one in which several pairs of matched restraining sleeve and die member are formed with each matched pair having a predetermined diameter. The predetermined diameter of each matched pair is different from another matched pair by stepped increments. The largest inside diameter of a restraining sleeve is equal to the diameter of the outer facing circumferential surface of the hub. Each pair of the matched restraining sleeve and die member is used to form an article in which an inside hub is bonded to an outside ring. The several samples so-formed are evaluated to determine which sample has the best bond formed between the hub and the ring with the least or no cracking or distortion in the ring portion of the article. Thereafter, the matched restraining sleeve and die member which form the article having the best bonding characteristics and least distortion cracking is then used for repeated formations of articles.

  13. 41 CFR 101-25.103-3 - Trading stamps or bonus goods received from contractors.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Trading stamps or bonus... PROCUREMENT 25-GENERAL 25.1-General Policies § 101-25.103-3 Trading stamps or bonus goods received from contractors. When contracts contain a price reduction clause, any method (such as trading stamps or...

  14. Laser and focused ion beam combined machining for micro dies.

    PubMed

    Yoshida, Y; Okazaki, W; Uchida, T

    2012-02-01

    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 μm. A silicon rubber is used to confirm the shape of the holes.

  15. The Post Office Unveils the E-Stamp.

    ERIC Educational Resources Information Center

    Peppriell, Barbara

    1999-01-01

    Describes the first approved Internet postage product, which would allow users to print postage from their PCs. Discusses beta testing of the "E-Stamp" software; software companies investing in the technology; competitive programs; the small-business market; strategic alliances with envelopes, labels, and scales manufacturers; and future…

  16. Rapid fabrication of nano-structured quartz stamps.

    PubMed

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

    2013-02-01

    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 cm(2) 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.

  17. 49. BOX STAMPING MACHINE Located in room above warehouse. The ...

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

    49. BOX STAMPING MACHINE Located in room above warehouse. The power unit is missing, but the drive belt is seen hanging from the overhead. Printing plate of desired labeling would be attached to the lower half drum. Upon rotation, labeling would be transferred to a cardboard box which was being held around the upper drum. - Hovden Cannery, 886 Cannery Row, Monterey, Monterey County, CA

  18. The Ph.D. Now Comes with Food Stamps

    ERIC Educational Resources Information Center

    Patton, Stacey

    2012-01-01

    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…

  19. Improving the Accuracy of Stamping Analyses Including Springback Deformations

    NASA Astrophysics Data System (ADS)

    Firat, Mehmet; Karadeniz, Erdal; Yenice, Mustafa; Kaya, Mesut

    2013-02-01

    An accurate prediction of sheet metal deformation including springback is one of the main issues in an efficient finite element (FE) simulation in automotive and stamping industries. Considering tooling design for newer class of high-strength steels, in particular, this requirement became an important aspect for springback compensation practices today. The sheet deformation modeling accounting Bauschinger effect is considered to be a key factor affecting the accuracy of FE simulations in this context. In this article, a rate-independent cyclic plasticity model is presented and implemented into LS-Dyna software for an accurate modeling of sheet metal deformation in stamping simulations. The proposed model uses Hill's orthotropic yield surface in the description of yield loci of planar and transversely anisotropic sheets. The strain-hardening behavior is calculated based on an additive backstress form of the nonlinear kinematic hardening rule. The proposed model is applied in stamping simulations of a dual-phase steel automotive part, and comparisons are presented in terms of part strain and thickness distributions calculated with isotropic plasticity and the proposed model. It is observed that both models produce similar plastic strain and thickness distributions; however, there appeared to be considerable differences in computed springback deformations. Part shapes computed with both plasticity models were evaluated with surface scanning of manufactured parts. A comparison of FE computed geometries with manufactured parts proved the improved performance of proposed model over isotropic plasticity for this particular stamping application.

  20. Food Stamp Recipients Eat More Vegetables after Viewing Nutrition Videos.

    ERIC Educational Resources Information Center

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

    1999-01-01

    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.…

  1. 27 CFR 479.163 - Reuse of stamps prohibited.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2013-04-01 2013-04-01 false Reuse of stamps prohibited. 479.163 Section 479.163 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES,...

  2. 27 CFR 479.67 - Cancellation of stamp.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2014-04-01 2014-04-01 false Cancellation of stamp. 479.67 Section 479.67 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND...

  3. 27 CFR 479.161 - National Firearms Act stamps.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2013-04-01 2013-04-01 false National Firearms Act stamps. 479.161 Section 479.161 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE...

  4. 27 CFR 479.67 - Cancellation of stamp.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2012-04-01 2010-04-01 true Cancellation of stamp. 479.67 Section 479.67 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND...

  5. 27 CFR 479.161 - National Firearms Act stamps.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2012-04-01 2010-04-01 true National Firearms Act stamps. 479.161 Section 479.161 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE...

  6. 27 CFR 479.163 - Reuse of stamps prohibited.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2011-04-01 2010-04-01 true Reuse of stamps prohibited. 479.163 Section 479.163 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES,...

  7. 27 CFR 479.161 - National Firearms Act stamps.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2011-04-01 2010-04-01 true National Firearms Act stamps. 479.161 Section 479.161 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE...

  8. 27 CFR 479.163 - Reuse of stamps prohibited.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2012-04-01 2010-04-01 true Reuse of stamps prohibited. 479.163 Section 479.163 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES,...

  9. 27 CFR 479.163 - Reuse of stamps prohibited.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2014-04-01 2014-04-01 false Reuse of stamps prohibited. 479.163 Section 479.163 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES,...

  10. 27 CFR 479.87 - Cancellation of stamp.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2013-04-01 2013-04-01 false Cancellation of stamp. 479.87 Section 479.87 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND...

  11. 27 CFR 479.161 - National Firearms Act stamps.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2014-04-01 2014-04-01 false National Firearms Act stamps. 479.161 Section 479.161 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE...

  12. 27 CFR 479.87 - Cancellation of stamp.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2012-04-01 2010-04-01 true Cancellation of stamp. 479.87 Section 479.87 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND...

  13. 27 CFR 479.67 - Cancellation of stamp.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2013-04-01 2013-04-01 false Cancellation of stamp. 479.67 Section 479.67 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND...

  14. 27 CFR 479.87 - Cancellation of stamp.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2010-04-01 2010-04-01 false Cancellation of stamp. 479.87 Section 479.87 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND...

  15. 27 CFR 479.67 - Cancellation of stamp.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2011-04-01 2010-04-01 true Cancellation of stamp. 479.67 Section 479.67 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND...

  16. 27 CFR 479.67 - Cancellation of stamp.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2010-04-01 2010-04-01 false Cancellation of stamp. 479.67 Section 479.67 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND...

  17. 27 CFR 479.87 - Cancellation of stamp.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2014-04-01 2014-04-01 false Cancellation of stamp. 479.87 Section 479.87 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND...

  18. 27 CFR 479.161 - National Firearms Act stamps.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2010-04-01 2010-04-01 false National Firearms Act stamps. 479.161 Section 479.161 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE...

  19. 27 CFR 479.163 - Reuse of stamps prohibited.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2010-04-01 2010-04-01 false Reuse of stamps prohibited. 479.163 Section 479.163 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES,...

  20. 27 CFR 479.87 - Cancellation of stamp.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2011-04-01 2010-04-01 true Cancellation of stamp. 479.87 Section 479.87 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE DEVICES, AND...

  1. 7 CFR 273.25 - Simplified Food Stamp Program.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... TANF plan as defined at 45 CFR 260.30. (3) Pure-TANF household means a household in which all members... CFR 260.31. (b) Limit on benefit reduction for mixed-TANF households under the SFSP. If a State agency... 7 Agriculture 4 2011-01-01 2011-01-01 false Simplified Food Stamp Program. 273.25 Section...

  2. Rapid fabrication of nano-structured quartz stamps

    NASA Astrophysics Data System (ADS)

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

    2013-02-01

    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.

  3. 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

  4. 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

  5. Sputtered protective coatings for die casting dies

    NASA Technical Reports Server (NTRS)

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

    1981-01-01

    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.

  6. Student Press Responds with Barrage of Stories Ranging from Tearjerkers to Editorials about the Gulf Crisis.

    ERIC Educational Resources Information Center

    Ricchiardi, Sherry

    1991-01-01

    Describes how the student press across the United States responded to the Gulf war with a barrage of stories ranging from tearjerkers about alumni who died to editorials condemning anti-Arab sentiment. (SR)

  7. Energy Consumption of Die Casting Operations

    SciTech Connect

    Jerald Brevick; clark Mount-Campbell; Carroll Mobley

    2004-03-15

    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.

  8. Apparatus for restraining and transporting dies

    DOEpatents

    Allison, James W.; LaBarre, Timothy L.

    1994-01-01

    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.

  9. Efficient methods of nanoimprint stamp cleaning based on imprint self-cleaning effect.

    PubMed

    Meng, Fantao; Luo, Gang; Maximov, Ivan; Montelius, Lars; Zhou, Ye; Nilsson, Lars; Carlberg, Patrick; Heidari, Babak; Chu, Jinkui; Xu, H Q

    2011-05-01

    Nanoimprint lithography (NIL) is a nonconventional lithographic technique that promises low-cost, high-throughput patterning of structures with sub-10 nm resolution. Contamination of nanoimprint stamps is one of the key obstacles to industrialize the NIL technology. Here, we report two efficient approaches for removal of typical contamination of particles and residual resist from stamps: thermal and ultraviolet (UV) imprinting cleaning-both based on the self-cleaning effect of imprinting process. The contaminated stamps were imprinted onto polymer substrates and after demolding, they were treated with an organic solvent. The images of the stamp before and after the cleaning processes show that the two cleaning approaches can effectively remove contamination from stamps without destroying the stamp structures. The contact angles of the stamp before and after the cleaning processes indicate that the cleaning methods do not significantly degrade the anti-sticking layer. The cleaning processes reported in this work could also be used for substrate cleaning.

  10. Efficient methods of nanoimprint stamp cleaning based on imprint self-cleaning effect

    NASA Astrophysics Data System (ADS)

    Meng, Fantao; Luo, Gang; Maximov, Ivan; Montelius, Lars; Zhou, Ye; Nilsson, Lars; Carlberg, Patrick; Heidari, Babak; Chu, Jinkui; Xu, H. Q.

    2011-05-01

    Nanoimprint lithography (NIL) is a nonconventional lithographic technique that promises low-cost, high-throughput patterning of structures with sub-10 nm resolution. Contamination of nanoimprint stamps is one of the key obstacles to industrialize the NIL technology. Here, we report two efficient approaches for removal of typical contamination of particles and residual resist from stamps: thermal and ultraviolet (UV) imprinting cleaning—both based on the self-cleaning effect of imprinting process. The contaminated stamps were imprinted onto polymer substrates and after demolding, they were treated with an organic solvent. The images of the stamp before and after the cleaning processes show that the two cleaning approaches can effectively remove contamination from stamps without destroying the stamp structures. The contact angles of the stamp before and after the cleaning processes indicate that the cleaning methods do not significantly degrade the anti-sticking layer. The cleaning processes reported in this work could also be used for substrate cleaning.

  11. Shrinkage of polyurethane molecular stamp fixed on epoxy resin modified glass substrate

    NASA Astrophysics Data System (ADS)

    Liu, Zhengchun; He, Quanguo; Xiao, Pengfeng; Tang, Jianxin; He, Nongyue; Lu, Zuhong

    2003-01-01

    The shrinkage of polyurethane stamps used for the in situ synthesis of DNA microarrays via molecular stamping method was studied with Micron XYZ Scope. It was found that the polyurethane stamp fixed on the epoxy resin modified glass strongly and showed minimum linear shrinkage. The linear shrinkage of the whole polyurethane stamp and that of each feature of polyurethane stamp were controlled within 0.0341% and 0.309%, respectively, which were due to the strong van der Waals forces and hydrogen bonds between polyurethane and epoxy resin. It was also confirmed by scanning electron microscope that the polyurethane stamp fixed on the epoxy resin modified glass replicated the patterns of motherboard with a high fidelity. All these underlay the synthesis of DNA microarray through molecular stamping method.

  12. 29 CFR 1910.217 - Mechanical power presses.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... equipment. Air controlling equipment shall be protected against foreign material and water entering the... tools are intended for placing and removing materials in and from the press. Hand feeding tools are not... hazard areas to lubricate material, punches or dies. (e) Inspection, maintenance, and modification...

  13. 29 CFR 1910.217 - Mechanical power presses.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... equipment. Air controlling equipment shall be protected against foreign material and water entering the... tools are intended for placing and removing materials in and from the press. Hand feeding tools are not... hazard areas to lubricate material, punches or dies. (e) Inspection, maintenance, and modification...

  14. A Guide to Press Relations.

    ERIC Educational Resources Information Center

    Fibre Box Association, Chicago, IL.

    Stressing that a positive press-relations program can be extremely helpful to businesses, this publication offers suggestions for establishing press contacts, preparing press releases, holding press conferences, illustrating a story, preparing materials for use in radio and television broadcasts, and developing policies to be followed in emergency…

  15. Dynamic modeling and experiment of a new type of parallel servo press considering gravity counterbalance

    NASA Astrophysics Data System (ADS)

    He, Jun; Gao, Feng; Bai, Yongjun; Wu, Shengfu

    2013-11-01

    The large capacity servo press is traditionally realized by means of redundant actuation, however there exist the over-constraint problem and interference among actuators, which increases the control difficulty and the product cost. A new type of press mechanism with parallel topology is presented to develop the mechanical servo press with high stamping capacity. The dynamic model considering gravity counterbalance is proposed based on the virtual work principle, and then the effect of counterbalance cylinder on the dynamic performance of the servo press is studied. It is found that the motor torque required to operate the press is a lot less than the others when the ratio of the counterbalance force to the gravity of ram is in the vicinity of 1.0. The stamping force of the real press prototype can reach up to 25 MN on the position of 13 mm away from the bottom dead center. The typical deep-drawing process with 1 200 mm stroke at 8 strokes per minute is proposed by means of five order polynomial. On this process condition, the driving torques are calculated based on the above dynamic model and the torque measuring test is also carried out on the prototype. It is shown that the curve trend of calculation torque is consistent to the measured result and that the average error is less than 15%. The parallel mechanism is introduced into the development of large capacity servo press to avoid the over-constraint and interference of traditional redundant actuation, and its dynamic characteristics with gravity counterbalance are presented.

  16. Experimental Validation for Hot Stamping Process by Using Taguchi Method

    NASA Astrophysics Data System (ADS)

    Fawzi Zamri, Mohd; Lim, Syh Kai; Razlan Yusoff, Ahmad

    2016-02-01

    Due to the demand for reduction in gas emissions, energy saving and producing safer vehicles has driven the development of Ultra High Strength Steel (UHSS) material. To strengthen UHSS material such as boron steel, it needed to undergo a process of hot stamping for heating at certain temperature and time. In this paper, Taguchi method is applied to determine the appropriate parameter of thickness, heating temperature and heating time to achieve optimum strength of boron steel. The experiment is conducted by using flat square shape of hot stamping tool with tensile dog bone as a blank product. Then, the value of tensile strength and hardness is measured as response. The results showed that the lower thickness, higher heating temperature and heating time give the higher strength and hardness for the final product. In conclusion, boron steel blank are able to achieve up to 1200 MPa tensile strength and 650 HV of hardness.

  17. 7 CFR 273.25 - Simplified Food Stamp Program.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... at 45 CFR 260.30. (3) Pure-TANF household means a household in which all members receive assistance... (42 U.S.C. 601 et seq.) means “assistance” as defined in regulations at 45 CFR 260.31. (b) Limit on... 7 Agriculture 4 2010-01-01 2010-01-01 false Simplified Food Stamp Program. 273.25 Section...

  18. 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

  19. 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

  20. Use of tobacco tax stamps to prevent and reduce illicit tobacco trade--United States, 2014.

    PubMed

    Chriqui, Jamie; DeLong, Hillary; Gourdet, Camille; Chaloupka, Frank; Edwards, Sarah Matthes; Xu, Xin; Promoff, Gabbi

    2015-05-29

    Tobacco use is the leading cause of preventable disease and death in the United States. Increasing the unit price on tobacco products is the most effective tobacco prevention and control measure. Illicit tobacco trade (illicit trade) undermines high tobacco prices by providing tobacco users with cheaper-priced alternatives. In the United States, illicit trade primarily occurs when cigarettes are bought from states, jurisdictions, and federal reservation land with lower or no excise taxes, and sold in jurisdictions with higher taxes. Applying tax stamps to tobacco products, which provides documentation that taxes have been paid, is an important tool to combat illicit trade. Comprehensive tax stamping policy, which includes using digital, encrypted ("high-tech") stamps, applying stamps to all tobacco products, and working with tribes on stamping agreements, can further prevent and reduce illicit trade. This report describes state laws governing tax stamps on cigarettes, little cigars (cigarette-sized cigars), roll-your-own tobacco (RYOT), and tribal tobacco sales across the United States as of January 1, 2014, and assesses the extent of comprehensive tobacco tax stamping in the United States. Forty-four states (including the District of Columbia [DC]) applied traditional paper ("low-tech") tax stamps to cigarettes, whereas four authorized more effective high-tech stamps. Six states explicitly required stamps on other tobacco products (i.e., tobacco products other than cigarettes), and in approximately one third of states with tribal lands, tribes required tax stamping to address illicit purchases by nonmembers. No U.S. state had a comprehensive approach to tobacco tax stamping. Enhancing tobacco tax stamping across the country might further prevent and reduce illicit trade in the United States. PMID:26020136

  1. Use of tobacco tax stamps to prevent and reduce illicit tobacco trade--United States, 2014.

    PubMed

    Chriqui, Jamie; DeLong, Hillary; Gourdet, Camille; Chaloupka, Frank; Edwards, Sarah Matthes; Xu, Xin; Promoff, Gabbi

    2015-05-29

    Tobacco use is the leading cause of preventable disease and death in the United States. Increasing the unit price on tobacco products is the most effective tobacco prevention and control measure. Illicit tobacco trade (illicit trade) undermines high tobacco prices by providing tobacco users with cheaper-priced alternatives. In the United States, illicit trade primarily occurs when cigarettes are bought from states, jurisdictions, and federal reservation land with lower or no excise taxes, and sold in jurisdictions with higher taxes. Applying tax stamps to tobacco products, which provides documentation that taxes have been paid, is an important tool to combat illicit trade. Comprehensive tax stamping policy, which includes using digital, encrypted ("high-tech") stamps, applying stamps to all tobacco products, and working with tribes on stamping agreements, can further prevent and reduce illicit trade. This report describes state laws governing tax stamps on cigarettes, little cigars (cigarette-sized cigars), roll-your-own tobacco (RYOT), and tribal tobacco sales across the United States as of January 1, 2014, and assesses the extent of comprehensive tobacco tax stamping in the United States. Forty-four states (including the District of Columbia [DC]) applied traditional paper ("low-tech") tax stamps to cigarettes, whereas four authorized more effective high-tech stamps. Six states explicitly required stamps on other tobacco products (i.e., tobacco products other than cigarettes), and in approximately one third of states with tribal lands, tribes required tax stamping to address illicit purchases by nonmembers. No U.S. state had a comprehensive approach to tobacco tax stamping. Enhancing tobacco tax stamping across the country might further prevent and reduce illicit trade in the United States.

  2. Estimation Model for Magnetic Properties of Stamped Electrical Steel Sheet

    NASA Astrophysics Data System (ADS)

    Kashiwara, Yoshiyuki; Fujimura, Hiroshi; Okamura, Kazuo; Imanishi, Kenji; Yashiki, Hiroyoshi

    Less deterioration in magnetic properties of electrical steel sheets in the process of stamping out iron-core are necessary in order to maintain its performance. First, the influence of plastic strain and stress on magnetic properties was studied by test pieces, in which plastic strain was added uniformly and residual stress was not induced. Because the influence of plastic strain was expressed by equivalent plastic strain, at each equivalent plastic strain state the influence of load stress was investigated. Secondly, elastic limit was determined about 60% of macroscopic yield point (MYP), and it was found to agree with stress limit inducing irreversible deterioration in magnetic properties. Therefore simulation models, where beyond elastic limit plastic deformation begins and magnetic properties are deteriorated steeply, are proposed. Besides considered points in the deformation analysis are strain-rate sensitivity of flow stress, anisotropy under deformation, and influence of stress triaxiality on fracture. Finally, proposed models have been shown to be valid, because magnetic properties of 5mm width rectangular sheets stamped out from non-oriented electrical steel sheet (35A250 JIS grade) can be estimated with good accuracy. It is concluded that the elastic limit must be taken into account in both stamping process simulation and magnetic field calculation.

  3. DC-STAMP: A Key Regulator in Osteoclast Differentiation

    PubMed Central

    CHIU, YA-HUI; RITCHLIN, CHRISTOPHER T.

    2016-01-01

    Osteoimmunology research is a new emerging research field that investigates the links between the bone and immune responses. Results from osteoimmunology studies suggest that bone is not only an essential component of the musculoskeletal system, but is also actively involved in immune regulation. Many important factors involved in immune regulation also participate in bone homeostasis. Bone homeostasis is achieved by a coordinated action between bone synthesizing osteoblasts and bone degrading osteoclasts. An imbalanced action between osteoblasts and osteoclasts often results in pathological bone diseases: osteoporosis is caused by an excessive osteoclast activity, whereas osteopetrosis results from an increased osteoblast activity. This review focuses on dendritic cell specific transmembrane protein (DC STAMP), an important protein currently considered as a master regulator of osteoclastogenesis. Of clinical relevance, the frequency of circulating DC STAMPþ cells is elevated during the pathogenesis of psoriatic diseases. Intriguingly, recent results suggest that DC STAMP also plays an imperative role in bone homeostasis by regulating the differentiation of both osteoclasts and osteoblasts. This article summarizes our current knowledge on DC STAMP by focusing on its interacting proteins, its regulation on osteoclastogenesis related genes, its possible involvement in immunoreceptor tyrosine based inhibitory motif (ITIM) mediated signaling cascade, and its potential of developing therapeutics for clinical applications. PMID:27018136

  4. Press-On Optics

    ERIC Educational Resources Information Center

    Thorson, Jon C.

    1972-01-01

    The article discusses the design, application, and clinical uses of press-on optics which are descirbed as 1 millimeter thick, flexible lenses or prisms that may be produced in virtually any desired plus or minus dioptric power as ophthalmic lenses, or in any range of usable prism diopter power. (GW)

  5. Optically Aligned Drill Press

    NASA Technical Reports Server (NTRS)

    Adderholdt, Bruce M.

    1994-01-01

    Precise drill press equipped with rotary-indexing microscope. Microscope and drill exchange places when turret rotated. Microscope axis first aligned over future hole, then rotated out of way so drill axis assumes its precise position. New procedure takes less time to locate drilling positions and produces more accurate results. Apparatus adapted to such other machine tools as milling and measuring machines.

  6. Reinventing the University Press.

    ERIC Educational Resources Information Center

    Bryant, Eric

    1994-01-01

    Discusses how librarians and university press staffers could cooperate to improve the scholarly communication system. Causes of system decline, the environment for cooperation, several change models, possible changes to the publish or perish tenure system, and the probability of a slow transition to a new scholarly communications model are…

  7. Application of Raman spectroscopy in forensic investigation of questioned documents involving stamp inks.

    PubMed

    Raza, Ali; Saha, Basudeb

    2013-09-01

    Stamp pad inks from different manufacturers across India have been analyzed to investigate the feasibility of Raman scattering as a tool for forensic analysis of questioned documents involving stamp inks. Nine different stamping inks were analyzed by both Raman spectroscopic and HPTLC methods. The results demonstrate the effectiveness of these methods in classifying the investigated stamping inks based on their spectral pattern and HPTLC chromatogram. Raman scattering tool was able to determine the sequence of heterogeneous intersection strokes involving a blue stamp pad ink and other writing instruments, such as ballpoint pen ink (red and black), pencil and laser printer toner. However, this method was unable to resolve the exact sequencing for the intersection strokes involving investigated stamp ink and blue ballpoint ink or gel pen ink (all colors). PMID:23937943

  8. Fabrication of polyurethane molecular stamps for the synthesis of DNA microarray

    NASA Astrophysics Data System (ADS)

    Liu, Zhengchun; He, Quanguo; Xiao, Pengfeng; He, Nongyao; Lu, Zuhong; Bo, Liang

    2001-10-01

    Polyurethane based on polypropylene glycol (PPG) and Toluene diisocyanate (TDI) using 3,3'-dichloride-4,4'- methylenedianiline (MOCA) as the crosslinker is presented for the first time to fabricate molecular stamps (PU stamps) for the synthesis of DNA microarray with contact procedure. The predictability of the process is achieved by utilizing commercially available starting materials. SEM analysis of the morphology of PU stamps and master showed that PU elastometer could replicate subtly the motherboard's patterns with high fidelity. It was proved from the contact angle measurement that PU stamps surface has good affinity with acetonitrile, which guarantee the well-distribution of DNA monomers on patterned stamps. Laser confocal fluorescence microscopy images of oligonucleotide arrays confirmed polyurethane is an excellent material for molecular stamps.

  9. Application of Raman spectroscopy in forensic investigation of questioned documents involving stamp inks.

    PubMed

    Raza, Ali; Saha, Basudeb

    2013-09-01

    Stamp pad inks from different manufacturers across India have been analyzed to investigate the feasibility of Raman scattering as a tool for forensic analysis of questioned documents involving stamp inks. Nine different stamping inks were analyzed by both Raman spectroscopic and HPTLC methods. The results demonstrate the effectiveness of these methods in classifying the investigated stamping inks based on their spectral pattern and HPTLC chromatogram. Raman scattering tool was able to determine the sequence of heterogeneous intersection strokes involving a blue stamp pad ink and other writing instruments, such as ballpoint pen ink (red and black), pencil and laser printer toner. However, this method was unable to resolve the exact sequencing for the intersection strokes involving investigated stamp ink and blue ballpoint ink or gel pen ink (all colors).

  10. 49 CFR 238.119 - Rim-stamped straight-plate wheels.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Rim-stamped straight-plate wheels. 238.119 Section... Requirements § 238.119 Rim-stamped straight-plate wheels. (a)(1) Except as provided in paragraph (a)(2) of this... than a private car, that is equipped with a rim-stamped straight-plate wheel if a brake shoe acts...

  11. 49 CFR 238.119 - Rim-stamped straight-plate wheels.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Rim-stamped straight-plate wheels. 238.119 Section... Requirements § 238.119 Rim-stamped straight-plate wheels. (a)(1) Except as provided in paragraph (a)(2) of this... than a private car, that is equipped with a rim-stamped straight-plate wheel if a brake shoe acts...

  12. 49 CFR 238.119 - Rim-stamped straight-plate wheels.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Rim-stamped straight-plate wheels. 238.119 Section... Requirements § 238.119 Rim-stamped straight-plate wheels. (a)(1) Except as provided in paragraph (a)(2) of this... than a private car, that is equipped with a rim-stamped straight-plate wheel if a brake shoe acts...

  13. Minerals on postage stamps: A mix of art, history, economics and geography

    NASA Astrophysics Data System (ADS)

    Glover, Paul

    2010-05-01

    Most people would agree that minerals represent some of the most beautiful natural objects known to mankind, especially in the form of precious and semi-precious gemstones. It is hardly surprising, therefore, that they are often illustrated on stamps. Examples are the fine crystalline forms represented as coloured etchings in the French 1986 issue, and the stylized simplicity of the mineral stamps that were part of the Swiss Pro Patria series, issued annually between 1958 and 1961. I aim in this presentation to introduce the beautiful world of mineral illustrations on stamps. The talk cannot be comprehensive because of the very large number of minerals and stamps concerned, but it will introduce the range of minerals depicted on stamps, then look in some greater detail at several sets from France, Southern Africa and East Germany. Minerals become the subject of sets of stamps for many reasons. In many cases, it is part of an attempt by the particular national post office to depict the whole of the natural history of their country in stamp form - a statement of nationality and politics. The 1986 French issue was an example which followed sets of stamps that had already portrayed insects, flowers, trees and birds native to France. We also find that certain countries have produced several sets of stamps to mark the importance to their economy of mining particular minerals. Many African states depend upon minerals for much of their wealth and economic power, explaining why, for instance, Sierra Leone issued over 35 stamps on the subject of diamonds between 1965 and 1978, and why over 77% of mineral stamps come from countries with major mining interests. Countries with traditional links with the history of the study of geology and mining also produce mineral stamps. These are usually European countries with a long record of the study of the Earth, such as Germany and Switzerland. Curiously enough, though, despite its fine tradition of geological observation and research

  14. Canning Of Powdered Metal For Hot Isostatic Pressing

    NASA Technical Reports Server (NTRS)

    Juhas, John J.

    1989-01-01

    Quality of specimen enhanced by improved canning process. Method developed for canning specimens for hot isostatic pressing. Specimen placed inside refractory-metal ring, then sandwiched between two refractory-metal face sheets. Assembly placed inside die, then positioned in vacuum hot press. Heated to set temperature at prescribed vacuum to burn off all of binder in specimen. Advantages: powder-metallurgy composite totally purged of binder sealed in can in single operation, maintains size, shape, and uniformity of specimen. Weld region does not recrystallize, and little possibility of cracking.

  15. Displaced capillary dies

    DOEpatents

    Kalejs, Juris P.; Chalmers, Bruce; Surek, Thomas

    1984-01-01

    An asymmetrical shaped capillary die made exclusively of graphite is used to grow silicon ribbon which is capable of being made into solar cells that are more efficient than cells produced from ribbon made using a symmetrically shaped die.

  16. Displaced capillary dies

    DOEpatents

    Kalejs, Juris P.; Chalmers, Bruce; Surek, Thomas

    1982-01-01

    An asymmetrical shaped capillary die made exclusively of graphite is used to grow silicon ribbon which is capable of being made into solar cells that are more efficient than cells produced from ribbon made using a symmetrically shaped die.

  17. Packaged die heater

    SciTech Connect

    Spielberger, Richard; Ohme, Bruce Walker; Jensen, Ronald J.

    2011-06-21

    A heater for heating packaged die for burn-in and heat testing is described. The heater may be a ceramic-type heater with a metal filament. The heater may be incorporated into the integrated circuit package as an additional ceramic layer of the package, or may be an external heater placed in contact with the package to heat the die. Many different types of integrated circuit packages may be accommodated. The method provides increased energy efficiency for heating the die while reducing temperature stresses on testing equipment. The method allows the use of multiple heaters to heat die to different temperatures. Faulty die may be heated to weaken die attach material to facilitate removal of the die. The heater filament or a separate temperature thermistor located in the package may be used to accurately measure die temperature.

  18. Investigation of Die Stress Profiles during Powder Compaction using Instrumented Die

    SciTech Connect

    Hong, Sung-tae; Hovanski, Yuri; Lavender, Curt A.; Weil, K. Scott

    2008-06-01

    The radial stress profile in a cylindrical die during compaction of titanium (Ti) powder was investigated by experiments. The concept of an instrumented die was extended to design an enhanced instrumented die. Custom-made strain gage pins were used to measure the radial stress during powder compaction. The test fixture was designed to simulate double-action pressing. The measured die stress profile for Ti powder was compared with that for a commercially available iron (Fe) powder. The stress history shows that an appreciable residual stress remains in the die in the radial direction after the axial compaction stress is removed from the powder. Furthermore, the radial stress profile in the die, while under maximum axial compaction stress, is more uniform across the height of the Fe compact than that of the Ti compact. In addition, the residual stress profile in the die in the radial direction reduces symmetrically in both directions beyond the height of the compact for both powders. Finally, the Ti powder shows a significantly higher frictional coefficient at the maximum axial compaction stress, and consequently a higher maximum axial ejection stress than the Fe powder.

  19. [Harmony in dying].

    PubMed

    Meyer, H

    1990-02-13

    Dying and death have scarcely before our time preoccupied so many. Some even seem to thrive from thanatology. Do we physicians however consecrate patience and time to the dying of our next or our patients? Did we learn in medical school or with our patients to assist a dying person? Did we search for answers to death and dying by asking philosophers, physicians or musicians? Can we follow their reasoning in profit for our patients or for ourselves? Harmony in death can possibly be found in a harmonious life in our splendid and humane profession. Modest personal experience enriched by reflections tries imperfectly to bring harmony as hope to our dying.

  20. Morpho peleides butterfly wing imprints as structural colour stamp.

    PubMed

    Zobl, Sigrid; Salvenmoser, Willi; Schwerte, Thorsten; Gebeshuber, Ille C; Schreiner, Manfred

    2016-02-01

    This study presents the replication of a color-causing nanostructure based on the upper laminae of numerous cover scales of Morpho peleides butterfly wings and obtained solely by imprinting their upper-wing surfaces. Our results indicate that a simple casting technique using a novel integrated release agent can obtain a large positive replica using negative imprints via Polyvinylsiloxane. The developed method is low-tech and high-yield and is thus substantially easier and less expensive than previous methods. The microstructures were investigated with light microscopy, the nanostructures with both scanning and transmission electron microscopy, and the reflections with UV visible spectrometry. The influence of the release agent and the quality of the master stamp were determined by comparing measurements of the cover-scale sizes and their chromaticity values obtained by their images and with their positive imprints. The master stamp provided multiple positive replicas up to 3 cm(2) in just 1 h with structural coloration effects visible to the naked eye. Thus, the developed method proves the accuracy of the replicated nanostructure and its potential industrial application as a color-producing nanostamp. PMID:26835900

  1. Morpho peleides butterfly wing imprints as structural colour stamp.

    PubMed

    Zobl, Sigrid; Salvenmoser, Willi; Schwerte, Thorsten; Gebeshuber, Ille C; Schreiner, Manfred

    2016-02-02

    This study presents the replication of a color-causing nanostructure based on the upper laminae of numerous cover scales of Morpho peleides butterfly wings and obtained solely by imprinting their upper-wing surfaces. Our results indicate that a simple casting technique using a novel integrated release agent can obtain a large positive replica using negative imprints via Polyvinylsiloxane. The developed method is low-tech and high-yield and is thus substantially easier and less expensive than previous methods. The microstructures were investigated with light microscopy, the nanostructures with both scanning and transmission electron microscopy, and the reflections with UV visible spectrometry. The influence of the release agent and the quality of the master stamp were determined by comparing measurements of the cover-scale sizes and their chromaticity values obtained by their images and with their positive imprints. The master stamp provided multiple positive replicas up to 3 cm(2) in just 1 h with structural coloration effects visible to the naked eye. Thus, the developed method proves the accuracy of the replicated nanostructure and its potential industrial application as a color-producing nanostamp.

  2. 41 CFR 109-25.103 - Promotional materials, trading stamps, or bonus goods.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false Promotional materials, trading stamps, or bonus goods. 109-25.103 Section 109-25.103 Public Contracts and Property Management..., trading stamps, or bonus goods....

  3. 41 CFR 101-25.103 - Promotional materials, trading stamps, or bonus goods.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Promotional materials, trading stamps, or bonus goods. 101-25.103 Section 101-25.103 Public Contracts and Property Management... PROCUREMENT 25-GENERAL 25.1-General Policies § 101-25.103 Promotional materials, trading stamps, or...

  4. 41 CFR 101-25.103-4 - Disposition of promotional materials, trading stamps, or bonus goods.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... disposed of in accordance with 41 CFR 101-43, 44 and 45. ... promotional materials, trading stamps, or bonus goods. 101-25.103-4 Section 101-25.103-4 Public Contracts and... materials, trading stamps, or bonus goods. (a) Agencies shall, through the lowest appropriate...

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

    ERIC Educational Resources Information Center

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

    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…

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

    ERIC Educational Resources Information Center

    National Women's History Project, Windsor, CA.

    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…

  7. Food Stamps and Food Insecurity: What Can Be Learned in the Presence of Nonclassical Measurement Error?

    ERIC Educational Resources Information Center

    Gundersen, Craig; Kreider, Brent

    2008-01-01

    Policymakers have been puzzled to observe that food stamp households appear more likely to be food insecure than observationally similar eligible nonparticipating households. We reexamine this issue allowing for nonclassical reporting errors in food stamp participation and food insecurity. Extending the literature on partially identified…

  8. 7 CFR 273.28 - Application for Food Stamp Program recertification.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... ELIGIBLE HOUSEHOLDS The Transitional Benefits Alternative § 273.28 Application for Food Stamp Program... 7 Agriculture 4 2011-01-01 2011-01-01 false Application for Food Stamp Program recertification. 273.28 Section 273.28 Agriculture Regulations of the Department of Agriculture (Continued) FOOD...

  9. 25 CFR 301.1 - Eligibility for use of Government stamp.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 2 2013-04-01 2013-04-01 false Eligibility for use of Government stamp. 301.1 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...

  10. 25 CFR 301.1 - Eligibility for use of Government stamp.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 2 2014-04-01 2014-04-01 false Eligibility for use of Government stamp. 301.1 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...

  11. 25 CFR 301.1 - Eligibility for use of Government stamp.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 2 2012-04-01 2012-04-01 false Eligibility for use of Government stamp. 301.1 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...

  12. 25 CFR 301.1 - Eligibility for use of Government stamp.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 2 2010-04-01 2010-04-01 false Eligibility for use of Government stamp. 301.1 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...

  13. 25 CFR 301.1 - Eligibility for use of Government stamp.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 2 2011-04-01 2011-04-01 false Eligibility for use of Government stamp. 301.1 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...

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

    ERIC Educational Resources Information Center

    O'Shea, Daniel P.

    A process evaluation was conducted of the Better Opportunities for New Directions (BOND) demonstration that tested the conformance between the Texas Food Stamp Employment and Training (E&T) and Job Opportunities and Basic Skills (JOBS) programs. JOBS policies and procedures were applied to eligible Food Stamp recipients; staff serving the two…

  15. PREPARATION OF METAL POWDER COMPACTS PRIOR TO PRESSING

    DOEpatents

    Mansfield, H.

    1958-08-26

    A method of fabricating uranium by a powder metallurgical technique is described. It consists in introducing powdered uranium hydride into a receptacle shaped to coincide with the coatour of the die cavity and heating the hydride so that it decomposes to uranium metal. The metal particles cohere in the shapw of the receptacle and thereafter the prefurmed metal powder is pressed and sintered to obtain a dense compact.

  16. A Path-Independent Forming Limit Criterion for Stamping Simulations

    NASA Astrophysics Data System (ADS)

    Zhu, Xinhai; Chappuis, Laurent; Xia, Z. Cedric

    2005-08-01

    Forming Limit Diagram (FLD) has been proved to be a powerful tool for assessing necking failures in sheet metal forming analysis for majority of stamping operations over the last three decades. However, experimental evidence and theoretical analysis suggest that its applications are limited to linear or almost linear strain paths during its deformation history. Abrupt changes or even gradual deviations from linear strain-paths will shift forming limit curves from their original values, a situation that occurs in vast majority of sequential stamping operations such as where the drawing process is followed by flanging and re-strike processes. Various forming limit models have been put forward recently to provide remedies for the problem, noticeably stress-based and strain gradient-based forming limit criteria. This study presents an alternative path-independent forming limit criterion. Instead of traditional Forming Limit Diagrams (FLD) which are constructed in terms of major - minor principal strains throughout deformation history, the new criterion defines a critical effective strain ɛ¯* as the limit strain for necking, and it is shown that ɛ¯* can be expressed as a function of current strain rate state and material work hardening properties, without the need of explicitly considering strain-path effects. It is given by ɛ¯* = f(β, k, n) where β = dɛ2/dɛ1 at current deformation state, and k and n are material strain hardening parameters if a power law is assumed. The analysis is built upon previous work by Storen and Rice [1975] and Zhu et al [2002] with the incorporation of anisotropic yield models such as Hill'48 for quadratic orthotropic yield and Hill'79 for non-quadratic orthotropic yield. Effects of anisotropic parameters such as R-values and exponent n-values on necking are investigated in detail for a variety of strain paths. Results predicted according to current analysis are compared against experimental data gathered from literature and good

  17. Die singulation method

    DOEpatents

    Swiler, Thomas P [Albuquerque, NM; Garcia, Ernest J [Albuquerque, NM; Francis, Kathryn M [Rio Rancho, NM

    2014-01-07

    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 a HF etchant to singulate the die. A release fixture can be located near one side of the substrate to receive the singulated die.

  18. Die singulation method

    DOEpatents

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

    2013-06-11

    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.

  19. CIDER PRESS, LOOKING SOUTHEAST ACROSS THE SCHUYLKILL RIVER. THIS PRESS, ...

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

    CIDER PRESS, LOOKING SOUTHEAST ACROSS THE SCHUYLKILL RIVER. THIS PRESS, CARVED OUT OF A LARGE BOULDER AT THE RIVERS EDGE, PROBABLY DATES FROM THE LIFETIME OF JOHN BARTRAM, IF NOT TO THE SWEDISH SETTLERS BEFORE HIM. THE IRON FENCE IS A NINETEENTH-CENTURY ADDITION - John Bartram House & Garden, 54th Street & Lindbergh Boulevard, Philadelphia, Philadelphia County, PA

  20. Extrusion die and method

    DOEpatents

    Lipp, G. Daniel

    1994-04-26

    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.

  1. The Ambiguous Dying Syndrome

    ERIC Educational Resources Information Center

    Bern-Klug, Mercedes

    2004-01-01

    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…

  2. Sputtered protective coatings for die casting dies

    NASA Technical Reports Server (NTRS)

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

    1981-01-01

    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.

  3. To Pluto by way of a postage stamp

    NASA Technical Reports Server (NTRS)

    Staehle, Robert L.; Terrile, Richard J.; Weinstein, Stacy S.

    1994-01-01

    In this time of constrained budgets, the primary question facing planetary explorers is not 'Can we do it?' but 'Can we do it cheaply?' Taunted by words on a postage stamp, a group of mission designers at the Jet Propulsion Laboratory is struggling to find a cheap way to go to Pluto. Three primary goals were set by the science community: (1) imaging of Pluto and Charon, (2) mapping their surface composition, and (3) characterizing Pluto's atmosphere. The spacecraft will be designed around these primary goals. With the help of the Advanced Technology Insertion (ATI) process $5 million was alloted for two years to shop for lightweight components and subsystems using new technology never tried on a planetary mission. The process for this search and development is described.

  4. Extracting Hot spots of Topics from Time Stamped Documents

    PubMed Central

    Chen, Wei; Chundi, Parvathi

    2011-01-01

    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

  5. A unique patterned diamond stamp for a periodically hierarchical nanoarray structure

    NASA Astrophysics Data System (ADS)

    Wang, Yi; Shen, Yanting; Xu, Weiqing; Xu, Shuping; Li, Hongdong

    2016-10-01

    A diamond stamp with a hierarchical pattern was designed for the direct preparation of a periodic nanoarray structure, which was prepared by the reactive ion etching technique with a hierarchical ultrathin alumina membrane (HUTAM) as a mask. The optimal etching conditions for fabricating the diamond stamp were discussed in order to realize a vertical nanopore structure, avoiding structural damage from lateral etching. By using this diamond stamp, a polymer film with the desired hierarchical nanorod array structure can be obtained easily via the simple stamping process, which greatly simplifies the processing procedure. More importantly, the stamp is reusable because of its super-hardness, which ensures the reproducibility of the nanorod array pattern. Another merit is that the smooth surface of the etched diamond can avoid the use of a release agent. Our results prove that this hard stamp can be used for quick preparation of an elaborate periodic nanoarray structure. This study is significant in that it solves the problems of high cost and easy damage of stamps in nanoimprint lithography, and it might inspire more sophisticated applications of such an ordered structure in nanoplasmonics, biochemical sensing and nanophotonic devices.

  6. PR and the Student Press.

    ERIC Educational Resources Information Center

    Holland, Sandy

    1994-01-01

    Techniques for college public relations professionals to use in promoting a cooperative relationship with the student press are outlined. These include being available to students, having regular meetings, providing access to administrators, providing information that creates context for news, and releasing news directly to the student press. (MSE)

  7. Press, Politics and Popular Government.

    ERIC Educational Resources Information Center

    Will, George F., Ed.

    A panel discussion on politics and the press was held at the convention of the American Political Science Association in September 1971. This volume contains an essay delivered at that panel on the various functions or activities of the press--adversary, surrogate, sovereign--and remarks of the three discussants. In addition, an essay especially…

  8. The CIA and the Press.

    ERIC Educational Resources Information Center

    Carvalho, Bernardo A.

    The involvement of the Central Intelligence Agency (CIA) with both United States and foreign news media has been recorded in numerous publications. This report reviews the important aspects of the CIA-press relationships as they have appeared in print and discusses the implications of these relationsihps for the credibility of the press. Media…

  9. Is Dying Young Worse than Dying Old?

    ERIC Educational Resources Information Center

    Jecker, Nancy S.; Schneiderman, Lawrence J.

    1994-01-01

    Notes that, in contemporary Western society, people feel death of small child is greater injustice than death of older adult and experience correspondingly greater sorrow, anger, regret, or bitterness when very young person dies. Contrasts these attitudes with those of ancient Greece and shows relevance that different attitudes toward death have…

  10. Micromechanical die attachment surcharge

    DOEpatents

    Filter, William F.; Hohimer, John P.

    2002-01-01

    An attachment structure is disclosed for attaching a die to a supporting substrate without the use of adhesives or solder. The attachment structure, which can be formed by micromachining, functions purely mechanically in utilizing a plurality of shaped pillars (e.g. round, square or polygonal and solid, hollow or slotted) that are formed on one of the die or supporting substrate and which can be urged into contact with various types of mating structures including other pillars, a deformable layer or a plurality of receptacles that are formed on the other of the die or supporting substrate, thereby forming a friction bond that holds the die to the supporting substrate. The attachment structure can further include an alignment structure for precise positioning of the die and supporting substrate to facilitate mounting the die to the supporting substrate. The attachment structure has applications for mounting semiconductor die containing a microelectromechanical (MEM) device, a microsensor or an integrated circuit (IC), and can be used to form a multichip module. The attachment structure is particularly useful for mounting die containing released MEM devices since these devices are fragile and can otherwise be damaged or degraded by adhesive or solder mounting.

  11. Extrusion die and method

    DOEpatents

    Lipp, G. Daniel

    1994-05-03

    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.

  12. Sequentially timed all-optical mapping photography (STAMP) utilizing spectral filtering.

    PubMed

    Suzuki, Takakazu; Isa, Fumihiro; Fujii, Leo; Hirosawa, Kenichi; Nakagawa, Keiichi; Goda, Keisuke; Sakuma, Ichiro; Kannari, Fumihiko

    2015-11-16

    We propose and experimentally demonstrate a new method called SF-STAMP for sequentially timed all-optical mapping photography (STAMP) that utilizes spectral filtering. SF-STAMP is composed of a diffractive optical element (DOE), a band-pass filter, and two Fourier transform lenses. Using a linearly frequency-chirped pulse and converting the wavelength to the time axis, we realize single-shot ultrafast burst imaging. As an experimental demonstration of SF-STAMP, we monitor the dynamics of a laser ablation using a linearly frequency-chirped broadband pulse (>100 nm) that is temporally stretched up to ~40 ps. This imaging method is expected to be effective for investigating ultrafast dynamics in a diverse range of fields, such as photochemistry, plasma physics, and fluidics. PMID:26698529

  13. 31 CFR 500.410 - Currency, coins, and postage and other stamps.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 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)....

  14. 75 FR 23565 - Food Stamp Program: Eligibility and Certification Provisions of the Farm Security and Rural...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-04

    ... Farm Security and Rural Investment Act of 2002, which was published on January 29, 2010 (75 FR 4912... from Food Stamp Program to Supplemental Nutrition Assistance Program (SNAP). The Office of...

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

    SciTech Connect

    Orloff, D.I.

    1992-08-01

    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%.

  16. Investigation of Thermal and Mechanical Properties of Quenchable High-Strength Steels in Hot Stamping

    NASA Astrophysics Data System (ADS)

    Gorriño, Anton; Angulo, Carlos; Muro, Maider; Izaga, Julian

    2016-06-01

    The interfacial heat transfer coefficient (IHTC) is determined in the industrial range of contact pressure applied during the hot stamping process of boron steel sheets, under similar conditions to those used in industrial practice. The mechanical properties and microstructure of the parts are also examined. Moreover, the influence of the stamping pressure on the IHTC is investigated in detail via mechanical property and microstructural characterization.

  17. Nanotransfer Printing Using Plasma Etched Silicon Stamps and Mediated by In-Situ Deposited Fluoropolyme

    SciTech Connect

    Bhandari, Deepak; Kravchenko, Ivan I; Lavrik, Nickolay V; Sepaniak, Michael J

    2011-01-01

    This communication describes a simple method that uses a thin film of octafluorocyclobutane (OFCB) polymer for efficient nanoscale transfer printing (nTP). Plasma polymerization of OFCB produces a Teflon-like fluoropolymer which strongly adheres and conformally covers 3-D inorganic stamp. The inherently low surface energy of in-situ deposited OFCB polymer on nanoscale silicon features is demonstrated as a unique nanocomposite stamp to fabricate various test structures with improved nTP feature resolution down to sub 100 nm.

  18. Regulation of Human Osteoclast Development by Dendritic Cell-Specific Transmembrane Protein (DC-STAMP)

    PubMed Central

    Chiu, Ya-Hui; Mensah, Kofi A.; Schwarz, Edward M.; Ju, Yawen; Takahata, Masahiko; Feng, Changyong; McMahon, Loralee A.; Hicks, David G.; Panepento, Ben; Keng, Peter C.; Ritchlin, Christopher T.

    2011-01-01

    Osteoclasts (OC) are bone-resorbing, multinucleated cells that are generated via fusion of OC precursors (OCP). The frequency of OCP is elevated in patients with erosive inflammatory arthritis and metabolic bone diseases. Although many cytokines and cell surface receptors are known to participate in osteoclastogenesis, the molecular mechanisms underlying the regulation of this cellular transformation are poorly understood. Herein, we focused our studies on the dendritic cell-specific transmembrane protein (DC-STAMP), a seven-pass-transmembrane receptor-like protein known to be essential for cell-to-cell fusion during osteoclastogenesis. We identified an immunoreceptor tyrosine-based inhibitory motif (ITIM) in the cytoplasmic tail of DC-STAMP, and developed an anti-DC-STAMP monoclonal antibody 1A2 that detected DC-STAMP expression on human tumor giant cells, blocked OC formation in vitro, and distinguished four patterns of human PBMC with a positive correlation to OC potential. In freshly isolated monocytes, DC-STAMPhigh cells produced a higher number of OC in culture than DC-STAMPlow cells and the surface expression of DC-STAMP gradually declined during osteoclastogenesis. Importantly, we showed that DC-STAMP is phosphorylated on its tyrosine residues and physically interacts with SHP-1 and CD16, an SH2-domain-containing tyrosine phosphatase and an ITAM-associated protein, respectively. Taken together, these data show that DC-STAMP is a potential OCP biomarker in inflammatory arthritis. Moreover, in addition to its effect on cell fusion, DC-STAMP dynamically regulates cell signaling during osteoclastogenesis. PMID:21987375

  19. Carbon nanotube substrates and catalyzed hot stamp for polishing and patterning the substrates

    DOEpatents

    Wang, Yuhuang; Hauge, Robert H.; Schmidt, Howard K.; Kim, Myung Jong; Kittrell, W. Carter

    2009-09-08

    The present invention is generally directed to catalyzed hot stamp methods for polishing and/or patterning carbon nanotube-containing substrates. In some embodiments, the substrate, as a carbon nanotube fiber end, is brought into contact with a hot stamp (typically at 200-800.degree. C.), and is kept in contact with the hot stamp until the morphology/patterns on the hot stamp have been transferred to the substrate. In some embodiments, the hot stamp is made of material comprising one or more transition metals (Fe, Ni, Co, Pt, Ag, Au, etc.), which can catalyze the etching reaction of carbon with H.sub.2, CO.sub.2, H.sub.2O, and/or O.sub.2. Such methods can (1) polish the carbon nanotube-containing substrate with a microscopically smooth finish, and/or (2) transfer pre-defined patterns from the hot stamp to the substrate. Such polished or patterned carbon nanotube substrates can find application as carbon nanotube electrodes, field emitters, and field emitter arrays for displays and electron sources.

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

    NASA Astrophysics Data System (ADS)

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

    2011-08-01

    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.

  1. When Somebody Dies

    MedlinePlus

    ... alguien muere All living things — including bugs and fish and people — die. It's difficult, even for grownups, ... kind of death for families and friends to deal with because it happens so fast. There is ...

  2. Insulation from basaltic stamp sand. Final technical report

    SciTech Connect

    Williams, F. D.

    1981-04-01

    A Midwest Appropriate Technology Grant was awarded to determine the technical and economic feasibility of producing mineral-fiber insulation directly from extensive deposits of basaltic sand produced during former mining and milling operations in the Keweenaw Peninsula region of Michigan's Upper Peninsula. The amounts of local basaltic sands available and representative chemical compositions were determined. The variation of viscosity with temperature and chemical composition was estimated. Samples were melted and either pulled or blown into fiber. In all cases fiber could be made with a reasonable tensile strength to ensure usefulness. It was concluded that it was technically feasible to produce fibers from basaltic stamp sands of the Upper Peninsula of Michigan. A technical feasibility study using published data, a cost and design analysis of a basalt fiber production plant, a market survey of fiber needs, and an economic analysis for investing in a basalt fiber venture was undertaken. These studies concluded that the local production of basaltic insulation was both feasible and economically reasonable. It was suggested that the plant be located in a region of greater population density with lower utility costs. A representative one-third of these studies is included as appendices A, B, C, and D.

  3. Radial Electromagnetic Press for Ignitor

    NASA Astrophysics Data System (ADS)

    Pizzuto, A.; Capriccioli, A.; Gasparotto, M.; Palmieri, A.; Rita, C.; Roccella, M.; Coppi, B.

    1996-11-01

    The active vertical press included so far in the Ignitor design can be substituted advantageously (e.g. in terms of the machine maintenance procedure) by a radial electromagnetic press, without involving modification of the main machine components. Only the bracing ring of the radial mechanical preloading system that is permanently applied requires some changes. The radial press has to compensate for the reduced ring load (from 200 MN to 120 MN) and the original vertical press load of 35 MN. To get an equivalent preloading system, the radial press load has to be 140 MN, which is 25 MN higher, to account for the lower efficiency of the radial load. The current needed to originate the 140 MN force is about 3.2 MA. The press is active for 2 s starting from the plasma current rise. The temperature increase is about 20 ^oC. The stray field at the plasma border is well within the allowable value and can be easily compensated by varying slightly the current of one couple of poloidal coils. The new machine layout is illustrated and the electromagnetic and mechanical analyses carried out for the new configuration are given. Sponsored by ENEA, CNR and ASP, of Italy, and by the US DoE

  4. Is dying young worse than dying old?

    PubMed

    Jecker, N S; Schneiderman, L J

    1994-02-01

    In contemporary Western society, people experience the deaths of older and younger persons differently. We are disposed to feel that the death of a small child is a greater injustice than the death of an older adult, and we experience correspondingly greater sorrow, anger, regret or bitterness when a very young person dies. This article examines these responses critically to determine whether they are backed by ethical considerations that reason can discern and defend. We contrast contemporary attitudes with those of ancient Greece and show the relevance that different attitudes toward death have for health care decision making.

  5. The Adoption of Electronic Benefit Transfer Card for Delivering Food Stamp Benefits in Alabama: Perceptions of College Students Participating in the Food Stamp Program

    ERIC Educational Resources Information Center

    Zekeri, Andrew A.

    2004-01-01

    The reasons for moving from paper coupons to delivering food stamps electronically include potential reduction in the cost of administering the system and in fraud, theft and abuse of the system. Furthermore, the use of EBT is believed o reduce social stigma and embarrassment felt by recipients when using paper coupon. Therefore, using survey data…

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

    NASA Astrophysics Data System (ADS)

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

    2013-01-01

    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

  7. 7 CFR 550.29 - Press releases.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 6 2012-01-01 2012-01-01 false Press releases. 550.29 Section 550.29 Agriculture... Program Management § 550.29 Press releases. Press releases or other forms of public notification will be... opportunity to review, in advance, all written press releases and any other written information to be...

  8. 7 CFR 550.29 - Press releases.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 6 2013-01-01 2013-01-01 false Press releases. 550.29 Section 550.29 Agriculture... Program Management § 550.29 Press releases. Press releases or other forms of public notification will be... opportunity to review, in advance, all written press releases and any other written information to be...

  9. 7 CFR 550.29 - Press releases.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 6 2014-01-01 2014-01-01 false Press releases. 550.29 Section 550.29 Agriculture... Program Management § 550.29 Press releases. Press releases or other forms of public notification will be... opportunity to review, in advance, all written press releases and any other written information to be...

  10. 7 CFR 550.29 - Press releases.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 6 2010-01-01 2010-01-01 false Press releases. 550.29 Section 550.29 Agriculture... Program Management § 550.29 Press releases. Press releases or other forms of public notification will be... opportunity to review, in advance, all written press releases and any other written information to be...

  11. 7 CFR 550.29 - Press releases.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 6 2011-01-01 2011-01-01 false Press releases. 550.29 Section 550.29 Agriculture... Program Management § 550.29 Press releases. Press releases or other forms of public notification will be... opportunity to review, in advance, all written press releases and any other written information to be...

  12. Cracking Prediction in Hot Stamping of High-Strength Steel by a Temperature-Dependent Forming Limit Surface Approach

    NASA Astrophysics Data System (ADS)

    Liu, Hongsheng; Cui, Junjia; Jiang, Kaiyong; Zhou, Guangtao

    2016-10-01

    Hot stamping of high-strength steel (HSS) can significantly improve ultimate tensile strength (UTS) of hot-stamped part and thus meet the increasing demands for weight reduction and safety standards in vehicles. However, the prediction of forming defect such as cracking in hot stamping using traditional forming limit curve (FLC) is still challenging. In this paper, to predict HSS BR1500HS cracking in hot stamping, a temperature-dependent forming limit surface (FLS) is developed by simulations combined with experiments of biaxial tension of the plate with a groove at different temperatures. Different from the FLC, the newly developed FLS in which temperature is included suits the hot stamping of HSS. Considering the interplay among phase transformation, stress and strain, a finite element (FE)-coupled thermo-mechanical model of the hot stamping is developed and implemented under ABAQUS/Explicit platform where the developed FLS is built-in to predict strain distributions and HSS BR1500HS cracking in the hot stamping. Finally, the developed FLS is used to evaluate hot formability of HSS BR1500HS by using a hot stamping experiment for forming a box-shaped part. Results confirm that the developed FLS can accurately predict HSS BR1500HS cracking occurrence in the hot stamping.

  13. Continuous equal channel angular pressing

    DOEpatents

    Zhu, Yuntian T.; Lowe, Terry C.; Valiev, Ruslan Z.; Raab, Georgy J.

    2006-12-26

    An apparatus that continuously processes a metal workpiece without substantially altering its cross section includes a wheel member having an endless circumferential groove, and a stationary constraint die that surrounds the wheel member, covers most of the length of the groove, and forms a passageway with the groove. The passageway has a rectangular shaped cross section. An abutment member projects from the die into the groove and blocks one end of the passageway. The wheel member rotates relative to the die in the direction toward the abutment member. An output channel in the die adjacent the abutment member has substantially the same cross section as the passageway. A metal workpiece is fed through an input channel into the passageway and carried in the groove by frictional drag in the direction towards the abutment member, and is extruded through the output channel without any substantial change in cross section.

  14. The Multianvil Press Research Facility at GSECARS

    NASA Astrophysics Data System (ADS)

    Wang, Y.; Uchida, T.; Rivers, M. L.; Sutton, S. R.; Weidner, D. J.; Durham, W. B.

    2002-12-01

    The multianvil press high pressure synchrotron research facility at the GSECARS beamlines consists of two large-volume presses (LVP): a 2.5 MN (250 ton) system at the bending magnet beamline (13-BM-D) and a 10 MN system at the insertion device beamline (13-ID-D). Both systems are now fully operational, with steadily increasing annual usage from ~70 days in 1998 to ~120 days in 2001. Here we present a system overview with brief scientific highlights illustrating the breadth of research and achievements made using this facility. Construction and operation of the facility are supported by the NSF Geosciences Instrumentation and Facilities Program. A DIA-type cubic-anvil apparatus and a split-cylinder apparatus (T-Cup) with 10 mm WC cubes are used to generate pressures and temperatures up to 24 GPa and 2400 K, on millimeter-sized samples, at 13-BM-D. In 13-ID-D, a large T-Cup apparatus with 25 mm anvils is used to reach pressure and temperature conditions of 25 GPa and 2500K simultaneously. Both high-pressure apparatus are mounted in die-sets, which can be easily transported in and out of the hydraulic press. Therefore all pressure generating apparatus can be used at any beamline, depending on research needs. A new deformation DIA (DDIA) was commissioned in August, 2002. This apparatus is capable of generating 30% strain on a 1 mm sample at pressures to ~15 GPa, allowing quantitative triaxial deformation experiments. Close to 400 runs have been carried out at our facility in a wide range of research areas: (1) P-V-T equation of state measurements on important mantle minerals, Fe alloys, and pressure standards, (2) in situ determination of phase relations of silicates, Fe alloys, and semiconductors using X-ray diffraction, (3) falling sphere measurements using radiography to determine viscosity of the silicate and metallic melts, (4) ultrasonic velocity measurements on mantle minerals, especially non-quenchable high pressure phases (e.g., high-pressure clinoenstatite

  15. Experiences of the dying.

    PubMed

    Schoenbeck, Susan L

    2011-01-01

    It is often a mystery to us how we have come to know and believe in certain things. Beliefs are like guests who come up to a door. They come in only if the host opens it and invites them in. Otherwise they are turned away, unable to enter. LPNs/LVNs are invited to reflect on their experiences and expand their knowledge and beliefs. There is growing recognition that bedside talks of the dying, spirit travel and near-death events are real events for the people who experience them. LPNs/ LVNs are encouraged to expand their knowledge and beliefs about dying.

  16. [Human dying has changed].

    PubMed

    Llano Escobar, A

    1990-01-01

    In the modern era, the act of dying, at least in the West, presents a series of new characteristics resulting from scientific and technological progress and social changes. More and more frequently, humans die in the strange surroundings of medical establishments without the support of their loved ones and without the opportunity of taking part in decisions related to their own deaths. In the light of the serious personal and social problems caused by this transformation of human death, bioethics emerges as an attempt to uncover options that are more humane.

  17. Press chamber coating as external lubrication for high speed rotary presses: lubricant spray rate optimization.

    PubMed

    Jahn, T; Steffens, K-J

    2005-12-01

    Lubrication of the tooling (punches and dies) is necessary to produce tablets. The most commonly used lubricant is magnesium stearate. Adding and blending magnesium stearate to the tablet mass often has negative effects on the properties of the compressed tablets (e.g., decreasing the tensile strength of the tablet). To avoid these negative effects, external lubrication systems were developed. This study investigated the functionality and the influence of a new press chamber coating system called the PKB II. The major difference between the PKB II and previous systems is its ability to spray a mixture of powdered magnesium stearate and air directly onto the punches and dies which was determined to allow the running of the rotor at higher speeds. The data showed a clear correlation between the spray rate of the lubricant and the concentration of the magnesium stearate per tablet. The PKB II was designed to allow for adjustments, in order to optimize the spray rate, by using the ejection force. The concentration of magnesium stearate was reduced to approximately 0.04% per tablet, using the PKB II. Additionally, the most common negative effects, such as the decrease in tablet tensile strength, were avoided by using this system.

  18. Direct printing of silver nanoparticles by an agarose stamp on planar and patterned substrates.

    PubMed

    Kao, Yu-Chih; Hong, Franklin Chau-Nan

    2011-05-01

    In this study, we have used an agarose stamp to conduct direct printing of silver nanoparticles, nanowires and nanoplates on both planar and structured substrates. Nanoparticle solution could be first coated on an agarose stamp, and then transferred to a planar substrate. Micro-patterns comprising metal nanoparticles could be printed on planar substrates without the formation of residual layers. Thus a three-dimensional metal microstructure could be easily fabricated. The patterning of electrodes by printing Ag nanowires directly on TiO(2) was also demonstrated to fabricate resistive random access memory (RRAM) devices by all-solution-processing methods. By using a flat agarose stamp, the patterns printed on the microstructured substrates were quite different from those on the nanostructured substrates. On the microstructured substrates, direct printing could print silver nanoparticles onto the protrusion surface, and could print silver layers as thick as several microns, useful for high conductivity electrodes. On the substrates with nanostructures such as photonic crystals or nano-gratings, direct printing could transfer nanoparticles into the grooves or cavities only due to the contact of the agarose stamp with the groove or concavity surface. A new approach to fabricate metal wire grid polarizers was further demonstrated. A nanoporous agarose stamp has a good potential for printing using nanoparticle suspension.

  19. Spectral characterization of postage stamp printing inks by means of Raman spectroscopy.

    PubMed

    Imperio, Eleonora; Giancane, Gabriele; Valli, Ludovico

    2015-03-01

    Time travel through 150 years of Italian postage stamp issues has allowed defining the evolution of the recurring pigments in stamp designs by means of Raman and FTIR spectroscopy. Numerous exemplars have been analyzed, covering the entire production of stamps for both the Italian Kingdom and Republic. Raman and FTIR spectra showed the changeover from Prussian blue to copper phthalocyanine inks in 1958. The entire succession for red inks was also recognized to develop from the original cinnabar to red ochre and minium and finally to red azo pigments. The changes in orange printing ink proceeded on a similar path. The first orange Italian exemplar was printed employing a mixture of chrome orange and red ochre. In 1929 this combination was replaced by azo pigments. Green stamps belonging to the first issues entailed the choice of blue and orange inks, namely chrome orange and Prussian blue. Later on, an ink composed mainly of phthalocyanine was employed as the green dye. The merging of data coming from Raman microscopy and FTIR-ATR spectroscopy, both non-destructive techniques, has allowed the characterization of stamp designs and potentially provides direct and fast evidence for the recognition of forged exemplars. PMID:25625140

  20. Apollo 13 Facts: Press Conference

    NASA Technical Reports Server (NTRS)

    2001-01-01

    Flight Director Gene Krantz gives an overview of the Apollo 13 mission as corrections are made in the power down checklist, passive thermal control, and orbital burns after the spacecraft runs into problems. He then answers questions from the press with the help of Tony England, Bill Peters, and Dick Thorson. Footage then shows newspaper headlines 'We're Not Concerned' and 'Getting Ready to Land' as people watch televisions to see if the astronauts landed safely. The press conference section of this video has sound, the headlines section does not.

  1. Hot isostatic pressing: Conference proceedings

    SciTech Connect

    Froes, F.H.; Hebeisen, J.; Widmer, R.

    1996-12-31

    The International Conference on Hot Isostatic Pressing was held on May 20-22, 1996, in Andover, Massachusetts. This conference discussed the state-of-the-art of hot isostatic pressing (HIP) and competing compaction techniques. HIP allows complex cost-effective near net shapes to be produced from powder products, densification of castings thereby enhancing performance, retention of metastable structures such as nano-sized grains, and even creative food processing. Sections in the conference covered such items as fundamentals, mathematical modeling, equipment and instrumentation, advanced materials and processes, composite materials, casting densification, surface treatments, HIP bonding, and competing technologies. Forty five papers were processed separately for inclusion on the data base.

  2. Die andere Revolution

    NASA Astrophysics Data System (ADS)

    Kippenhahn, Rudolf

    2005-05-01

    War Kopernikus der größte Revolutionär des naturwissenschaftlichen Weltbildes? Seine Erkenntnisse waren der Beginn eines jahrhundertelangen Denkprozesses, welcher zur Einsicht führte, dass im Weltall die gleichen physikalischen Gesetze gelten wie auf der Erde.

  3. Die Kosmologie der Griechen.

    NASA Astrophysics Data System (ADS)

    Mittelstraß, J.

    Contents: 1. Mythische Eier. 2. Thales-Welten. 3. "Alles ist voller Götter". 4. Griechische Astronomie. 5. "Rettung der Phänomene". 6. Aristotelische Kosmololgie. 7. Aristoteles-Welt und Platon-Welt. 8. Noch einmal: die Göttlichkeit der Welt. 9. Griechischer Idealismus.

  4. The stamp technique for direct Class II composite restorations: A case series

    PubMed Central

    Alshehadat, Saaid Ayesh; Halim, Mohamad Syahrizal; Carmen, Koh; Fung, Chew Shi

    2016-01-01

    Background: “Stamp” technique is a new method for placing large composite restorations with accurate occlusal topography. It was introduced mainly to restore Class I cavities and erosively damaged teeth. This technique is indicated when the preoperative anatomy of the tooth is intact and not lost due to the carious lesion. A precise tooth-like filling an accurate functional occlusion is obtained when the stamp technique is applied. However, using this technique to restore Class II cavities is not established yet. Aim: To introduce modifications of the stamp technique that make it applicable to restore Class II composite restorations. Materials and Methods: The traditional materials and tools used for direct composite restorations are needed with no additional instruments. Clinical illustrations and step-by-step description are provided in this paper. Results and Conclusion: Using the stamp technique to restore Class II cavities is achievable, simple and practical, and result in a very accurate anatomical restoration. PMID:27656074

  5. The stamp technique for direct Class II composite restorations: A case series

    PubMed Central

    Alshehadat, Saaid Ayesh; Halim, Mohamad Syahrizal; Carmen, Koh; Fung, Chew Shi

    2016-01-01

    Background: “Stamp” technique is a new method for placing large composite restorations with accurate occlusal topography. It was introduced mainly to restore Class I cavities and erosively damaged teeth. This technique is indicated when the preoperative anatomy of the tooth is intact and not lost due to the carious lesion. A precise tooth-like filling an accurate functional occlusion is obtained when the stamp technique is applied. However, using this technique to restore Class II cavities is not established yet. Aim: To introduce modifications of the stamp technique that make it applicable to restore Class II composite restorations. Materials and Methods: The traditional materials and tools used for direct composite restorations are needed with no additional instruments. Clinical illustrations and step-by-step description are provided in this paper. Results and Conclusion: Using the stamp technique to restore Class II cavities is achievable, simple and practical, and result in a very accurate anatomical restoration.

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

    SciTech Connect

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

    2013-12-16

    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.

  7. viStaMPS: The Application For Viewing And Manipulating StaMPS Results

    NASA Astrophysics Data System (ADS)

    Sousa, Joaquim; Sousa, Antonio; Magalhaes, Luis; Ruiz, Antonio

    2013-12-01

    viStaMPS (visual StaMPS) is a new visual application developed to enhance the visualization, manipulation and exportation of StaMPS results. The programmed application is developed in Matlab® through the Graphical User Interface (GUI) and no coding is required for running it, which avoids any programming language knowledge for standard uses. This tool integrates fully new features together with various scripts from StaMPS, allowing the generation of the desired plots/maps in a user-friendly interface. It is done by simply clicking some buttons or changing some parameters located in visual panels, instead of input commands in a prompt. Moreover, since it is written in Matlab, it gives the users the opportunity to access the data very easily and make their own modifications. Being a research tool, viStaMPS is continually under development and will count on the dynamism of its users to improve and/or add new features.

  8. Navigating "Assisted Dying".

    PubMed

    Schipper, Harvey

    2016-02-01

    Carter is a bellwether decision, an adjudication on a narrow point of law whose implications are vast across society, and whose impact may not be realized for years. Coupled with Quebec's Act Respecting End-of-life Care it has sharply changed the legal landscape with respect to actively ending a person's life. "Medically assisted dying" will be permitted under circumstances, and through processes, which have yet to be operationally defined. This decision carries with it moral assumptions, which mean that it will be difficult to reach a unifying consensus. For some, the decision and Act reflect a modern acknowledgement of individual autonomy. For others, allowing such acts is morally unspeakable. Having opened the Pandora's Box, the question becomes one of navigating a tolerable societal path. I believe it is possible to achieve a workable solution based on the core principle that "medically assisted dying" should be a very rarely employed last option, subject to transparent ongoing review, specifically as to why it was deemed necessary. My analysis is based on 1. The societal conditions in which have fostered demand for "assisted dying", 2. Actions in other jurisdictions, 3. Carter and Quebec Bill 52, 4. Political considerations, 5. Current medical practice. Leading to a series of recommendations regarding. 1. Legislation and regulation, 2. The role of professional regulatory agencies, 3. Medical professions education and practice, 4. Public education, 5. Health care delivery and palliative care. Given the burden of public opinion, and the legal steps already taken, a process for assisted-dying is required. However, those legal and regulatory steps should only be considered a necessary and defensive first step in a two stage process. The larger goal, the second step, is to drive the improvement of care, and thus minimize assisted-dying. PMID:27169205

  9. Censorship and the Student Press.

    ERIC Educational Resources Information Center

    Oettinger, Lauren

    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…

  10. Law and the Student Press.

    ERIC Educational Resources Information Center

    Stevens, George E.; Webster, John B.

    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,…

  11. Gifted Education Press Quarterly, 1995.

    ERIC Educational Resources Information Center

    Fisher, Maurice D., Ed.

    1995-01-01

    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…

  12. The Alternative Press in Microform.

    ERIC Educational Resources Information Center

    Tsang, Daniel C.

    Presented is an analysis of what has been done regarding the preservation of alternative publications in microfilm. The alternative press was defined, for the purposes of this study, as "nonstandard, nonestablishment publications." Two projects undertaken to microfilm such publications, one by the Microphoto Division of Bell and Howell and the…

  13. Mars Observer Press Conference JPL

    NASA Technical Reports Server (NTRS)

    1993-01-01

    The Mars Observer mission spacecraft was primarily designed for exploring Mars and the Martian environment. The Mars Observer was launched on September 25, 1992. The spacecraft was lost in the vicinity of Mars on August 21, 1993 when the spacecraft began its maneuvering sequence for Martian orbital insertion. This videotape shows a press briefing, held after the spacecraft had not responded to attempts to communicate with it, to explain to the press the problems and the steps that were being taken to re-establish communication with the spacecraft. The communications had been shutdown prior to the orbital insertion burn to protect the instruments. At the time of the press conference, the communications system was still not operational, and attempts were being made to re-establish communication. Bob McMillan of the Public Affairs Office at JPL gives the initial announcement of the continuing communication problem with the spacecraft. Mr. McMillan introduces William Piotrowski, acting director of solar system exploration, who reiterates that there is indeed no communication with the Observer spacecraft. He is followed by Glenn Cunningham, the Project Manager of the Mars Observer who speaks about the attempts to re-establish contact. Mr. Cunningham is followed by Satenios Dallas, the Mission Manager for the Mars Observer Project, who speaks about the sequence of events leading up to the communication failure, and shows an animated video presenting the orbital insertion maneuvers. The briefing was then opened up for questions from the assembled press, both at JPL and at the other NASA Centers. The questions are about the possible reasons for the communication failure, and the attempts to restore communications with the spacecraft. Dr. Arden L. Albee, chief scientist for the Mars Observer Mission, joins the other panel members to answer questions. At the end of the press briefing the animation of the Mars orbital insertion is shown again.

  14. Herausforderungen durch die deutsche Wiedervereinigung

    NASA Astrophysics Data System (ADS)

    Stäglin, Reiner

    Die Wiedervereinigung stellte auch die Statistik vor große Aufgaben. Die als Organ der staatlichen Planung staatsnah orientierte Statistik der DDR musste auf das zur Neutralität und wissenschaftlichen Unabhängigkeit verpflichtete System der Bundesrepublik umgestellt werden. Ebenso verlangten die Universitäten eine Neuorientierung. Die Deutsche Statistische Gesellschaft hat sich vor allem dreier Aufgaben mit großem Engagement, aber auch mit Bedachtsamkeit angenommen: Aufnahme und Integration der Statistiker aus den neuen Bundesländern in die Gesellschaft, Begleitung der Neuausrichtung des Faches Statistik an deren Hochschulen und Sicherung sowie Nutzung von Datenbeständen der ehemaligen DDR.

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

    NASA Technical Reports Server (NTRS)

    Young, S. G.

    1973-01-01

    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.

  16. Internet-Based Training to Improve Preschool Playground Safety: Evaluation of the Stamp-in-Safety Programme

    ERIC Educational Resources Information Center

    Schwebel, David C.; Pennefather, Jordan; Marquez, Brion; Marquez, Jessie

    2015-01-01

    Objective: Playground injuries result in over 200,000 US pediatric emergency department visits annually. One strategy to reduce injuries is improved adult supervision. The Stamp-in-Safety programme, which involves supervisors stamping rewards for children playing safely, has been demonstrated in preliminary classroom-based work to reduce child…

  17. 45 CFR 205.25 - Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ....25 Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities... 45 Public Welfare 2 2010-10-01 2010-10-01 false Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities. 205.25 Section 205.25 Public Welfare Regulations...

  18. 45 CFR 205.25 - Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ....25 Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities... 45 Public Welfare 2 2014-10-01 2012-10-01 true Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities. 205.25 Section 205.25 Public Welfare Regulations...

  19. 45 CFR 205.25 - Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ....25 Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities... 45 Public Welfare 2 2012-10-01 2012-10-01 false Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities. 205.25 Section 205.25 Public Welfare Regulations...

  20. 45 CFR 205.25 - Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ....25 Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities... 45 Public Welfare 2 2011-10-01 2011-10-01 false Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities. 205.25 Section 205.25 Public Welfare Regulations...

  1. 45 CFR 205.25 - Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ....25 Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities... 45 Public Welfare 2 2013-10-01 2012-10-01 true Eligibility of supplemental security income beneficiaries for food stamps or surplus commodities. 205.25 Section 205.25 Public Welfare Regulations...

  2. Modeling the Mechanical Performance of Die Casting Dies

    SciTech Connect

    R. Allen Miller

    2004-02-27

    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.

  3. Development of a Press-Hardened Steel Suitable for Thin Slab Direct Rolling Processing

    NASA Astrophysics Data System (ADS)

    Lee, Jewoong; De Cooman, Bruno C.

    2015-01-01

    The thin slab casting and direct rolling process is a hot-rolled strip production method which has maintained commercial quality steel grades as a major material in many industrial applications due to its low processing cost. Few innovative products have however been developed specifically for production by thin slab direct rolling. Press hardening or hot press forming steel grades which are now widely used to produce structural automotive steel parts requiring ultra-high strength and formability may however offer an opportunity for thin slab direct rolling-specific ultra-high strength products. In this work, a newly designed press hardening steel grade developed specifically for thin slab direct rolling processing is presented. The press hardening steel has a high nitrogen content compared with press hardening steel grades produced by conventional steelmaking routes. Boron and titanium which are key alloying additions in conventional press hardening steel such as the 22MnB5 press hardening steel grade are not utilized. Cr is added in the press hardening steel to obtain the required hardenability. The properties of the new thin slab direct rolling-specific 22MnCrN5 press hardening steel grade are reviewed. The evolution of the microstructure and mechanical properties with increasing amounts of Cr additions from 0.6 to 1.4 wt pct and the effect of the cooling rate during die-quenching were studied by means of laboratory simulations. The selection of the optimum chemical composition range for the thin slab direct rolling-specific 22MnCrN5 steel in press hardening heat treatment conditions is discussed.

  4. Die kalte Zunge

    NASA Astrophysics Data System (ADS)

    Bartels, Sören; Müller, Rüdiger

    Gefühlte Temperaturen. Ist ein Null Grad Celsius kalter Metallstab eigentlich kälter als ein Holzstab mit der selben Temperatur? Rein physikalisch gesehen natürlich nicht, aber wenn wir beide Stäbe anfassen, kommt uns der Metallstab deutlich kälter vor. Und wer kennt nicht die Szene aus dem Film Dumm und Dümmer in der Harry mit seiner Zunge am Metallrahmen des Skilifts hängen bleibt.Würde das auch passieren, wenn man an einem eiskalten Stück Holz lecken würde? Wohl kaum, doch woran liegt das eigentlich? Unterschiedliche Materialien haben verschiedene Fähigkeiten, Wärme zu übertragen und zu leiten. So transportiert Metall die von der Zunge ausgehende Wärme sehr schnell weiter und verändert seine Temperatur kaum, während die Zunge abkühlt. Holz hingegen leitet Wärme fast gar nicht und daher wird der Teil, der von der Zunge berührt wird, aufgewärmt.

  5. Psychotherapy with Older Dying Persons.

    ERIC Educational Resources Information Center

    Dye, Carol J.

    Psychotherapy with older dying patients can lead to problems of countertransference for the clinician. Working with dying patients requires flexibility to adapt basic therapeutics to the institutional setting. Goals of psychotherapy must be reconceptualized for dying clients. The problems of countertransference arise because clinicians themselves…

  6. Psychotherapy with the dying patient.

    PubMed

    Schwartz, A M; Karasu, T B

    1977-01-01

    This paper develops and describes encounters with dying patients and their families and looks for consesus of patterns and responses of possible help in confronting this situation. It offers positive suggestions for those providing care for dying patients but also acknowledges that only an intellectual grasp of the situation is not sufficient qualification for caring for the dying.

  7. Apollo 11 preflight press conference

    NASA Technical Reports Server (NTRS)

    1969-01-01

    The three prime crewmen of the Apollo 11 lunar landing mission participate in a pre-flight press conference in the bldg 1 auditorium on July 5, 1969. Left to right, are Astronauts Neil A. Armstrong, commander; Edwin E. Aldrin Jr., lunar module pilot; and Michael Collins, command module pilot. The box-like enclosure surrounding the three astronauts was part of elaborate precautions in effect to reduce the possibility of exposing the crewmen to infectious disease in the preflight period.

  8. The Burger Court and the Press.

    ERIC Educational Resources Information Center

    Higdon, Philip R.

    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…

  9. 28 CFR 540.64 - Press pools.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 28 Judicial Administration 2 2011-07-01 2011-07-01 false Press pools. 540.64 Section 540.64... PERSONS IN THE COMMUNITY Contact With News Media § 540.64 Press pools. (a) The Warden may establish a press pool whenever he or she determines that the frequency of requests for interviews and...

  10. 28 CFR 540.64 - Press pools.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 28 Judicial Administration 2 2014-07-01 2014-07-01 false Press pools. 540.64 Section 540.64... PERSONS IN THE COMMUNITY Contact With News Media § 540.64 Press pools. (a) The Warden may establish a press pool whenever he or she determines that the frequency of requests for interviews and...

  11. 28 CFR 540.64 - Press pools.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 28 Judicial Administration 2 2013-07-01 2013-07-01 false Press pools. 540.64 Section 540.64... PERSONS IN THE COMMUNITY Contact With News Media § 540.64 Press pools. (a) The Warden may establish a press pool whenever he or she determines that the frequency of requests for interviews and...

  12. 28 CFR 540.64 - Press pools.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 28 Judicial Administration 2 2012-07-01 2012-07-01 false Press pools. 540.64 Section 540.64... PERSONS IN THE COMMUNITY Contact With News Media § 540.64 Press pools. (a) The Warden may establish a press pool whenever he or she determines that the frequency of requests for interviews and...

  13. Attention that Indicators Receive in the Press

    ERIC Educational Resources Information Center

    Hendriks, Maria; Barzano, Giovanna; Brumana, Emanuela; Cremonesi, Claudia

    2004-01-01

    With the release of each edition of Education at a Glance, the Office for Economic Co-operation and Development (OECD) prepares a press briefing to be used for the international press release and which individual countries in preparing their national press releases can also use. Similarly, the European Union prepares a summary, not for use at the…

  14. 28 CFR 540.64 - Press pools.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Press pools. 540.64 Section 540.64... PERSONS IN THE COMMUNITY Contact With News Media § 540.64 Press pools. (a) The Warden may establish a press pool whenever he or she determines that the frequency of requests for interviews and...

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

    ERIC Educational Resources Information Center

    Fuller-Thomson, Esme; Redmond, Melissa

    2008-01-01

    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…

  16. A rapid co-culture stamping device for studying intercellular communication

    PubMed Central

    Hassanzadeh-Barforoushi, Amin; Shemesh, Jonathan; Farbehi, Nona; Asadnia, Mohsen; Yeoh, Guan Heng; Harvey, Richard P.; Nordon, Robert E.; Warkiani, Majid Ebrahimi

    2016-01-01

    Regulation of tissue development and repair depends on communication between neighbouring cells. Recent advances in cell micro-contact printing and microfluidics have facilitated the in-vitro study of homotypic and heterotypic cell-cell interaction. Nonetheless, these techniques are still complicated to perform and as a result, are seldom used by biologists. We report here development of a temporarily sealed microfluidic stamping device which utilizes a novel valve design for patterning two adherent cell lines with well-defined interlacing configurations to study cell-cell interactions. We demonstrate post-stamping cell viability of >95%, the stamping of multiple adherent cell types, and the ability to control the seeded cell density. We also show viability, proliferation and migration of cultured cells, enabling analysis of co-culture boundary conditions on cell fate. We also developed an in-vitro model of endothelial and cardiac stem cell interactions, which are thought to regulate coronary repair after myocardial injury. The stamp is fabricated using microfabrication techniques, is operated with a lab pipettor and uses very low reagent volumes of 20 μl with cell injection efficiency of >70%. This easy-to-use device provides a general strategy for micro-patterning of multiple cell types and will be important for studying cell-cell interactions in a multitude of applications. PMID:27752145

  17. Impacting Mediators of Change for Physical Activity among Elderly Food Stamp Recipients

    ERIC Educational Resources Information Center

    Dye, Cheryl J.; Williams, Joel E.; Kemper, Karen A.; McGuire, Francis A.; Aybar-Damali, Begum

    2012-01-01

    A multidisciplinary team developed and pilot-tested a curriculum, delivered by trained lay educators, to increase self-efficacy for physical activity among elderly food stamp recipients. Curriculum development was guided by a comprehensive literature review. Process evaluation was used to revise the curriculum and to assess lay educator training…

  18. 42 CFR 71.3 - Designation of yellow fever vaccination centers; Validation stamps.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 42 Public Health 1 2013-10-01 2013-10-01 false Designation of yellow fever vaccination centers... Designation of yellow fever vaccination centers; Validation stamps. (a) Designation of yellow fever vaccination centers. (1) The Director is responsible for the designation of yellow fever vaccination...

  19. 42 CFR 71.3 - Designation of yellow fever vaccination centers; Validation stamps.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 42 Public Health 1 2014-10-01 2014-10-01 false Designation of yellow fever vaccination centers... Designation of yellow fever vaccination centers; Validation stamps. (a) Designation of yellow fever vaccination centers. (1) The Director is responsible for the designation of yellow fever vaccination...

  20. 42 CFR 71.3 - Designation of yellow fever vaccination centers; Validation stamps.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 42 Public Health 1 2012-10-01 2012-10-01 false Designation of yellow fever vaccination centers... Designation of yellow fever vaccination centers; Validation stamps. (a) Designation of yellow fever vaccination centers. (1) The Director is responsible for the designation of yellow fever vaccination...

  1. 42 CFR 71.3 - Designation of yellow fever vaccination centers; Validation stamps.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 1 2010-10-01 2010-10-01 false Designation of yellow fever vaccination centers... Designation of yellow fever vaccination centers; Validation stamps. (a) Designation of yellow fever vaccination centers. (1) The Director is responsible for the designation of yellow fever vaccination...

  2. 42 CFR 71.3 - Designation of yellow fever vaccination centers; Validation stamps.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 42 Public Health 1 2011-10-01 2011-10-01 false Designation of yellow fever vaccination centers... Designation of yellow fever vaccination centers; Validation stamps. (a) Designation of yellow fever vaccination centers. (1) The Director is responsible for the designation of yellow fever vaccination...

  3. 27 CFR 479.36 - The special tax stamp, receipt for special (occupational) taxes.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ..., receipt for special (occupational) taxes. 479.36 Section 479.36 Alcohol, Tobacco Products, and Firearms... MACHINE GUNS, DESTRUCTIVE DEVICES, AND CERTAIN OTHER FIREARMS Special (Occupational) Taxes § 479.36 The special tax stamp, receipt for special (occupational) taxes. Upon filing a properly completed and...

  4. 27 CFR 479.36 - The special tax stamp, receipt for special (occupational) taxes.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ..., receipt for special (occupational) taxes. 479.36 Section 479.36 Alcohol, Tobacco Products, and Firearms... MACHINE GUNS, DESTRUCTIVE DEVICES, AND CERTAIN OTHER FIREARMS Special (Occupational) Taxes § 479.36 The special tax stamp, receipt for special (occupational) taxes. Upon filing a properly completed and...

  5. 27 CFR 479.36 - The special tax stamp, receipt for special (occupational) taxes.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ..., receipt for special (occupational) taxes. 479.36 Section 479.36 Alcohol, Tobacco Products, and Firearms... MACHINE GUNS, DESTRUCTIVE DEVICES, AND CERTAIN OTHER FIREARMS Special (Occupational) Taxes § 479.36 The special tax stamp, receipt for special (occupational) taxes. Upon filing a properly completed and...

  6. 27 CFR 479.36 - The special tax stamp, receipt for special (occupational) taxes.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ..., receipt for special (occupational) taxes. 479.36 Section 479.36 Alcohol, Tobacco Products, and Firearms... MACHINE GUNS, DESTRUCTIVE DEVICES, AND CERTAIN OTHER FIREARMS Special (Occupational) Taxes § 479.36 The special tax stamp, receipt for special (occupational) taxes. Upon filing a properly completed and...

  7. 27 CFR 479.36 - The special tax stamp, receipt for special (occupational) taxes.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ..., receipt for special (occupational) taxes. 479.36 Section 479.36 Alcohol, Tobacco Products, and Firearms... MACHINE GUNS, DESTRUCTIVE DEVICES, AND CERTAIN OTHER FIREARMS Special (Occupational) Taxes § 479.36 The special tax stamp, receipt for special (occupational) taxes. Upon filing a properly completed and...

  8. Program Evaluation: Food Stamps and Commodity Distribution in Rural Areas of Central Pennsylvania.

    ERIC Educational Resources Information Center

    Madden J. Patrick; Yoder, Marion D.

    Since one primary goal of the Commodity Distribution (CD) Program and the Food Stamp (FS) Program is to improve diets of low-income families, this 1969-70 study focused on whether the adequacy of a low-income family's dietary intake was improved by their participation in a food-assistance program. As stated, the adequacy of a family's dietary…

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

    ERIC Educational Resources Information Center

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

    2008-01-01

    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…

  10. MERCURY IN STAMP SAND DISCHARGES: IMPLICATIONS FOR LAKE SUPERIOR MERCURY CYCLING

    EPA Science Inventory

    Approximately a half billion tons of waste rock from the extraction of native copper and silver ores was discharged into the Lake Superior basin. Stamping was the method of choice to recover these metals from the surrounding poor rock. This process created large amounts of extre...

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

    ERIC Educational Resources Information Center

    Nam, Yunju; Jung, Hyo Jin

    2008-01-01

    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'…

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

    ERIC Educational Resources Information Center

    Smith, Kristin; Savage, Sarah

    2007-01-01

    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…

  13. Fabrication of microlens array on silicon surface using electrochemical wet stamping technique

    NASA Astrophysics Data System (ADS)

    Lai, Lei-Jie; Zhou, Hang; Zhu, Li-Min

    2016-02-01

    This paper focuses on the fabrication of microlens array (MLA) on silicon surface by taking advantage of a novel micromachining approach, the electrochemical we stamping (E-WETS). The E-WETS allows the direct imprinting of MLA on an agarose stamp into the substrate through a selective anodic dissolution process. The pre-patterned agarose stamp can direct and supply the solution preferentially on the contact area between the agarose stamp and the substrate, to which the electrochemical reaction is confined. The anodic potential vs. saturated calomel electrode is optimized and 1.5 V is chosen as the optimum value for the electrochemical polishing of p-Si. A refractive MLA on a PMMA mold is successfully transferred onto the p-Si surface. The machining deviations of the fabricated MLA from those on the mold are 0.44% in diameter and 2.1% in height respectively, and the machining rate in HF is around 1.1 μm/h. The surface roughness of the fabricated MLA is less than 12 nm owing to the electrochemical polishing process. The results demonstrate that E-WETS is a promising approach to fabricate MLA on p-Si surface with high accuracy and efficiency.

  14. T & I--Graphics, Rubber Stamp. Kit No. 90. Instructor's Manual [and] Student Learning Activity Guide.

    ERIC Educational Resources Information Center

    Lake, Robert J.

    An instructor's manual and student activity guide on making a rubber stamp are provided in this set of prevocational education materials which focuses on the vocational area of trade and industry (graphics). (This set of materials is one of ninety-two prevocational education sets arranged around a cluster of seven vocational offerings:…

  15. 76 FR 67132 - Foreign-Trade Zone 177-Evansville, IN; Application for Manufacturing Authority; Hoosier Stamping...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ...; Hoosier Stamping & Mfg. Corp. (Wheel Assemblies and Accessories), Chandler, IN An application has been... assemblies and accessories. Components and materials sourced from abroad (representing up to 60% of the value... payments on the foreign components used in export production. The company anticipates that...

  16. 49 CFR 238.119 - Rim-stamped straight-plate wheels.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... replacement wheel on a private car that operates in a passenger train if a brake shoe acts on the tread of the... than a private car, that is equipped with a rim-stamped straight-plate wheel if a brake shoe acts on the tread of the wheel for the purpose of slowing the vehicle. (2) A commuter railroad may continue...

  17. 49 CFR 238.119 - Rim-stamped straight-plate wheels.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... replacement wheel on a private car that operates in a passenger train if a brake shoe acts on the tread of the... than a private car, that is equipped with a rim-stamped straight-plate wheel if a brake shoe acts on the tread of the wheel for the purpose of slowing the vehicle. (2) A commuter railroad may continue...

  18. 27 CFR 479.171 - Redemption of or allowance for stamps.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2014-04-01 2014-04-01 false Redemption of or allowance for stamps. 479.171 Section 479.171 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE...

  19. 27 CFR 479.171 - Redemption of or allowance for stamps.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2011-04-01 2010-04-01 true Redemption of or allowance for stamps. 479.171 Section 479.171 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE...

  20. 27 CFR 479.37 - Certificates in lieu of stamps lost or destroyed.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2010-04-01 2010-04-01 false Certificates in lieu of stamps lost or destroyed. 479.37 Section 479.37 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS,...

  1. 27 CFR 479.171 - Redemption of or allowance for stamps.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2013-04-01 2013-04-01 false Redemption of or allowance for stamps. 479.171 Section 479.171 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE...

  2. 27 CFR 479.171 - Redemption of or allowance for stamps.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2012-04-01 2010-04-01 true Redemption of or allowance for stamps. 479.171 Section 479.171 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE...

  3. 27 CFR 479.37 - Certificates in lieu of stamps lost or destroyed.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2011-04-01 2010-04-01 true Certificates in lieu of stamps lost or destroyed. 479.37 Section 479.37 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS,...

  4. 27 CFR 479.37 - Certificates in lieu of stamps lost or destroyed.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2014-04-01 2014-04-01 false Certificates in lieu of stamps lost or destroyed. 479.37 Section 479.37 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS,...

  5. 27 CFR 479.37 - Certificates in lieu of stamps lost or destroyed.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2012-04-01 2010-04-01 true Certificates in lieu of stamps lost or destroyed. 479.37 Section 479.37 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS,...

  6. 27 CFR 479.171 - Redemption of or allowance for stamps.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2010-04-01 2010-04-01 false Redemption of or allowance for stamps. 479.171 Section 479.171 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS, DESTRUCTIVE...

  7. 27 CFR 479.37 - Certificates in lieu of stamps lost or destroyed.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 3 2013-04-01 2013-04-01 false Certificates in lieu of stamps lost or destroyed. 479.37 Section 479.37 Alcohol, Tobacco Products, and Firearms BUREAU OF ALCOHOL, TOBACCO, FIREARMS, AND EXPLOSIVES, DEPARTMENT OF JUSTICE FIREARMS AND AMMUNITION MACHINE GUNS,...

  8. 27 CFR 70.332 - Unauthorized use or sale of stamps.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2011-04-01 2011-04-01 false Unauthorized use or sale of stamps. 70.332 Section 70.332 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND... ADMINISTRATION Collection of Excise and Special (Occupational) Tax Crimes, Other Offenses and Forfeitures §...

  9. 27 CFR 70.332 - Unauthorized use or sale of stamps.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2010-04-01 2010-04-01 false Unauthorized use or sale of stamps. 70.332 Section 70.332 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND... ADMINISTRATION Collection of Excise and Special (Occupational) Tax Crimes, Other Offenses and Forfeitures §...

  10. 27 CFR 70.332 - Unauthorized use or sale of stamps.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2014-04-01 2014-04-01 false Unauthorized use or sale of stamps. 70.332 Section 70.332 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND... ADMINISTRATION Collection of Excise and Special (Occupational) Tax Crimes, Other Offenses and Forfeitures §...

  11. 27 CFR 70.332 - Unauthorized use or sale of stamps.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2012-04-01 2011-04-01 true Unauthorized use or sale of stamps. 70.332 Section 70.332 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE... Collection of Excise and Special (Occupational) Tax Crimes, Other Offenses and Forfeitures §...

  12. 27 CFR 70.332 - Unauthorized use or sale of stamps.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2013-04-01 2013-04-01 false Unauthorized use or sale of stamps. 70.332 Section 70.332 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND... ADMINISTRATION Collection of Excise and Special (Occupational) Tax Crimes, Other Offenses and Forfeitures §...

  13. 77 FR 24177 - Approval for Manufacturing Authority; Foreign-Trade Zone 177; Hoosier Stamping & Mfg. Corp...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-23

    ... Wheel (Hoosier Stamping) within FTZ 177 in Chandler, Indiana, (FTZ Docket 68-2011, filed 10-25-2011); Whereas, notice inviting public comment has been given in the Federal Register (76 FR 67132-67133, 10-31... & Mfg. Corp. (Wheel Assemblies and Accessories); Chandler, IN Pursuant to its authority under...

  14. 26 CFR 301.7209-1 - Unauthorized use or sale of stamps.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 18 2011-04-01 2011-04-01 false Unauthorized use or sale of stamps. 301.7209-1 Section 301.7209-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) PROCEDURE AND ADMINISTRATION PROCEDURE AND ADMINISTRATION Crimes, Other Offenses, and Forfeitures...

  15. 26 CFR 301.7209-1 - Unauthorized use or sale of stamps.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 18 2014-04-01 2014-04-01 false Unauthorized use or sale of stamps. 301.7209-1 Section 301.7209-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) PROCEDURE AND ADMINISTRATION PROCEDURE AND ADMINISTRATION Crimes, Other Offenses, and Forfeitures...

  16. 26 CFR 301.7209-1 - Unauthorized use or sale of stamps.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 18 2010-04-01 2010-04-01 false Unauthorized use or sale of stamps. 301.7209-1 Section 301.7209-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) PROCEDURE AND ADMINISTRATION PROCEDURE AND ADMINISTRATION Crimes, Other Offenses, and Forfeitures...

  17. 26 CFR 301.7209-1 - Unauthorized use or sale of stamps.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 18 2012-04-01 2012-04-01 false Unauthorized use or sale of stamps. 301.7209-1 Section 301.7209-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) PROCEDURE AND ADMINISTRATION PROCEDURE AND ADMINISTRATION Crimes, Other Offenses, and Forfeitures...

  18. 26 CFR 301.7209-1 - Unauthorized use or sale of stamps.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 18 2013-04-01 2013-04-01 false Unauthorized use or sale of stamps. 301.7209-1 Section 301.7209-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) PROCEDURE AND ADMINISTRATION PROCEDURE AND ADMINISTRATION Crimes, Other Offenses, and Forfeitures...

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

    PubMed

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

    2013-09-23

    Osteoclasts are multinucleated cells formed by fusion of mononuclear precursors in response to receptor activator of nuclear factor κB (NF-κB) 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-κB repression. However, the role of Sbno2 in vivo and its pleiotropic functions are unknown. Sbno2 gene targeting resulted in normal NF-κB 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.

  20. 59 FR- Food Stamp Program: Certification Provisions of the Mickey Leland Childhood Hunger Relief Act...

    Federal Register 2010, 2011, 2012, 2013, 2014

    1994-08-30

    ... Parents Participating in Drug or Alcohol Treatment Programs Under section 3(i) of the Food Stamp Act, food... children living with residents of alcohol or drug treatment centers are not eligible if the center provides... regulation, there have been changes in some drug and alcohol treatment centers' policy regarding addicts...

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

    ERIC Educational Resources Information Center

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

    2009-01-01

    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…

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

    ERIC Educational Resources Information Center

    Schexnayder, Deanna T.; Olson, Jerome A.

    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…

  3. Texas Food Stamp Employment and Training/JOBS Conformance Demonstration: BOND Participant Survey Final Report.

    ERIC Educational Resources Information Center

    O'Shea, Daniel P.; Long, Donald W.

    An evaluation was conducted of the Better Opportunities for New Directions (BOND) demonstration that tested the conformance between the Texas Food Stamp Employment and Training (E&T) and Job Opportunities and Basic Skills (JOBS) programs. The research design was a longitudinal panel approach. First-round interviews with 54 individuals probed…

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

    ERIC Educational Resources Information Center

    Norris, Dave N.; King, Christopher T.

    An evaluation was conducted of the Hawaii Food Stamp Employment and Training (FSE&T)/Job Opportunities and Basic Skills Program Conformance Demonstration, known as PRIDE (Positive Response in Developing Employment). The cost component determined impact of the demonstration on costs of administering and providing activity components and support…

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

    ERIC Educational Resources Information Center

    Schexnayder, Deanna T.; Olson, Jerome A.

    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…

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

    ERIC Educational Resources Information Center

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

    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…

  7. Mechanical vibration inhibits osteoclast formation by reducing DC-STAMP receptor expression in osteoclast precursor cells.

    PubMed

    Kulkarni, Rishikesh N; Voglewede, Philip A; Liu, Dawei

    2013-12-01

    It is well known that physical inactivity leads to loss of muscle mass, but it also causes bone loss. Mechanistically, osteoclastogenesis and bone resorption have recently been shown to be regulated by vibration. However, the underlying mechanism behind the inhibition of osteoclast formation is yet unknown. Therefore, we investigated whether mechanical vibration of osteoclast precursor cells affects osteoclast formation by the involvement of fusion-related molecules such as dendritic cell-specific transmembrane protein (DC-STAMP) and P2X7 receptor (P2X7R). RAW264.7 (a murine osteoclastic-like cell line) cells were treated with 20ng/ml receptor activator of NF-κB ligand (RANKL). For 3 consecutive days, the cells were subjected to 1h of mechanical vibration with 20μm displacement at a frequency of 4Hz and compared to the control cells that were treated under the same condition but without the vibration. After 5days of culture, osteoclast formation was determined. Gene expression of DC-STAMP and P2X7R by RAW264.7 cells was determined after 1h of mechanical vibration, while protein production of the DC-STAMP was determined after 6h of postincubation after vibration. As a result, mechanical vibration of RAW264.7 cells inhibited the formation of osteoclasts. Vibration down-regulated DC-STAMP gene expression by 1.6-fold in the presence of RANKL and by 1.4-fold in the absence of RANKL. Additionally, DC-STAMP protein production was also down-regulated by 1.4-fold in the presence of RANKL and by 1.2-fold in the absence of RANKL in RAW264.7 cells in response to mechanical vibration. However, vibration did not affect P2X7R gene expression. Mouse anti-DC-STAMP antibody inhibited osteoclast formation in the absence of vibration. Our results suggest that mechanical vibration of osteoclast precursor cells reduces DC-STAMP expression in osteoclast precursor cells leading to the inhibition of osteoclast formation.

  8. Method of extruding and packaging a thin sample of reactive material including forming the extrusion die

    SciTech Connect

    Lewandowski, E.F.; Peterson, L.L.

    1985-02-19

    This invention teaches a method of cutting a narrow slot in an extrusion die with an electrical discharge machine by first drilling spaced holes at the ends of where the slot will be, whereby the oil can flow through the holes and slot to flush the material eroded away as the slot is being cut. The invention further teaches a method of extruding a very thin ribbon of solid highly reactive material such as lithium or sodium through the die in an inert atmosphere of nitrogen, argon or the like as in a glovebox. The invention further teaches a method of stamping out sample discs from the ribbon and of packaging each disc by sandwiching it between two aluminum sheets and cold welding the sheets together along an annular seam beyond the outer periphery of the disc. This provides a sample of high purity reactive material that can have a long shelf life.

  9. Method of extruding and packaging a thin sample of reactive material, including forming the extrusion die

    DOEpatents

    Lewandowski, E.F.; Peterson, L.L.

    1981-11-30

    This invention teaches a method of cutting a narrow slot in an extrusion die with an electrical discharge machine by first drilling spaced holes at the ends of where the slot will be, whereby the oil can flow through the holes and slot to flush the material eroded away as the slot is being cut. The invention further teaches a method of extruding a very thin ribbon of solid highly reactive material such as lithium or sodium through the die in an inert atmosphere of nitrogen, argon, or the like as in a glovebox. The invention further teaches a method of stamping out sample discs from the ribbon and of packaging each disc by sandwiching it between two aluminum sheets and cold welding the sheets together along an annular seam beyond the outer periphery of the disc. This provides a sample of high purity reactive material that can have a long shelf life.

  10. Method of extruding and packaging a thin sample of reactive material including forming the extrusion die

    DOEpatents

    Lewandowski, Edward F.; Peterson, Leroy L.

    1985-01-01

    This invention teaches a method of cutting a narrow slot in an extrusion die with an electrical discharge machine by first drilling spaced holes at the ends of where the slot will be, whereby the oil can flow through the holes and slot to flush the material eroded away as the slot is being cut. The invention further teaches a method of extruding a very thin ribbon of solid highly reactive material such as lithium or sodium through the die in an inert atmosphere of nitrogen, argon or the like as in a glovebox. The invention further teaches a method of stamping out sample discs from the ribbon and of packaging each disc by sandwiching it between two aluminum sheets and cold welding the sheets together along an annular seam beyond the outer periphery of the disc. This provides a sample of high purity reactive material that can have a long shelf life.

  11. FE Simulation Models for Hot Stamping an Automobile Component with Tailor-Welded High-Strength Steels

    NASA Astrophysics Data System (ADS)

    Tang, Bingtao; Wang, Qiaoling; Wei, Zhaohui; Meng, Xianju; Yuan, Zhengjun

    2016-05-01

    Ultra-high-strength in sheet metal parts can be achieved with hot stamping process. To improve the crash performance and save vehicle weight, it is necessary to produce components with tailored properties. The use of tailor-welded high-strength steel is a relatively new hot stamping process for saving weight and obtaining desired local stiffness and crash performance. The simulation of hot stamping boron steel, especially tailor-welded blanks (TWBs) stamping, is more complex and challenging. Information about thermal/mechanical properties of tools and sheet materials, heat transfer, and friction between the deforming material and the tools is required in detail. In this study, the boron-manganese steel B1500HS and high-strength low-alloy steel B340LA are tailor welded and hot stamped. In order to precisely simulate the hot stamping process, modeling and simulation of hot stamping tailor-welded high-strength steels, including phase transformation modeling, thermal modeling, and thermal-mechanical modeling, is investigated. Meanwhile, the welding zone of tailor-welded blanks should be sufficiently accurate to describe thermal, mechanical, and metallurgical parameters. FE simulation model using TWBs with the thickness combination of 1.6 mm boron steel and 1.2 mm low-alloy steel is established. In order to evaluate the mechanical properties of the hot stamped automotive component (mini b-pillar), hardness and microstructure at each region are investigated. The comparisons between simulated results and experimental observations show the reliability of thermo-mechanical and metallurgical modeling strategies of TWBs hot stamping process.

  12. Nitriding of Aluminum Extrusion Die: Effect of Die Geometry

    NASA Astrophysics Data System (ADS)

    Akhtar, S. S.; Arif, A. F. M.; Yilbas, B. S.

    2010-04-01

    Nitriding of complex-shaped extrusion dies may result in non-uniform nitride layers and hence a required hardness may not be achieved in some regions of the bearing area. The present study is carried out to assess the effect of extrusion die profile on the characteristics and growth behavior of nitride layers so that the critical die design feature can be identified to enhance the uniformity of the nitride layer. For this purpose, AISI H13 steel samples have been manufactured with profiles similar to those of hot extrusion dies. The samples were then gas nitrided under controlled nitriding potential. The uniformity and depth of nitride layers have been investigated in terms of compound layer and total nitride case depth for selected die features. The results of this study indicated the need to include the effect of profile on the nitride layer for the optimal die design with improved service life.

  13. Accurate defect die placement and nuisance defect reduction for reticle die-to-die inspections

    NASA Astrophysics Data System (ADS)

    Wen, Vincent; Huang, L. R.; Lin, C. J.; Tseng, Y. N.; Huang, W. H.; Tuo, Laurent C.; Wylie, Mark; Chen, Ellison; Wang, Elvik; Glasser, Joshua; Kelkar, Amrish; Wu, David

    2015-10-01

    Die-to-die reticle inspections are among the simplest and most sensitive reticle inspections because of the use of an identical-design neighboring-die for the reference image. However, this inspection mode can have two key disadvantages: (1) The location of the defect is indeterminate because it is unclear to the inspector whether the test or reference image is defective; and (2) nuisance and false defects from mask manufacturing noise and tool optical variation can limit the usable sensitivity. The use of a new sequencing approach for a die-to-die inspection can resolve these issues without any additional scan time, without sacrifice in sensitivity requirement, and with a manageable increase in computation load. In this paper we explore another approach for die-to-die inspections using a new method of defect processing and sequencing. Utilizing die-to-die double arbitration during defect detection has been proven through extensive testing to generate accurate placement of the defect in the correct die to ensure efficient defect disposition at the AIMS step. The use of this method maintained the required inspection sensitivity for mask quality as verified with programmed-defectmask qualification and then further validated with production masks comparing the current inspection approach to the new method. Furthermore, this approach can significantly reduce the total number of defects that need to be reviewed by essentially eliminating the nuisance and false defects that can result from a die-to-die inspection. This "double-win" will significantly reduce the effort in classifying a die-to-die inspection result and will lead to improved cycle times.

  14. Graphite/Thermoplastic-Pultrusion Die

    NASA Technical Reports Server (NTRS)

    Wilson, Maywood L.; Frye, Mark W.; Johnson, Gary S.; Stanfield, Clarence E.

    1990-01-01

    Attachment to extruder produces thermoplastic-impregnated graphite tape. Consists of profile die, fiber/resin collimator, and crosshead die body. Die designed to be attached to commercially available extrusion machine capable of extruding high-performance thermoplastics. Simple attachment to commercial extruder enables developers of composites to begin experimenting with large numbers of proprietary resins, fibers, and hybrid composite structures. With device, almost any possible fiber/resin combination fabricated.

  15. Die Milchstraße.

    NASA Astrophysics Data System (ADS)

    Henbest, N.; Couper, H.

    This book is a German translation, by M. Röser, from the English original "The guide to the Galaxy", published in 1994 (see Abstr. 61.003.065). Contents: 1. Die Entdeckung unserer Galaxis. 2. Die Lokale Gruppe. 3. Die Geographie der Galaxis. 4. Der Perseus-Arm. 5. Der Orion-Arm. 6. Unsere lokale Nachbarschaft: ein typischer Winkel der Galaxis. 7. Der Sagittarius-Arm: innerhalb der Sonnenumlaufbahn. 8. Das Zentrum der Galaxis.

  16. Where people die.

    PubMed

    Katz, B P; Zdeb, M S; Therriault, G D

    1979-01-01

    Death certificates for 1977 filed with the New York State Department of Health were studied to determine where people died. Data were examined by the location and cause of death and by the age, sex, race, and marital status of the decedent. Comparisons were made with a similar study in which U.S. data were used for 1958 events. Approximately 60 percent of all the 1977 deaths in upstate New York occurred in hospitals; only 27 percent occurred outside an institution. The location of death varied by all the factors studied. Within all age categories, males had a higher percentage of hospital deaths. In those age categories in which nursing home deaths comprised a significant proportion of total deaths, females had a higher percentage of such deaths than males. Differences in the location of death according to its cause reflect the nature of the cause of death, for example, whether it was of sudden onset or the result of chronic disease. Most people do not consider in advance where they might die. The idea that age, sex, and marital status, as well as the more obvious cause, all play a part in the location may seem surprising. Yet all these factors were found to be associated withe location of deaths in upstate New York, and there is no reason to believe that this association does not hold true for the entire nation. More research, however, needs to be done based on more years and other geographic artal stutus may be instructive as to the present state of health resources.

  17. Development of Micro-Dies Using Titanium Super Plastic Alloy

    NASA Astrophysics Data System (ADS)

    Yoshimura, Hidenori; Oohira, Fumikazu; Hashiguchi, Gen; Katayama, Tomoyuki; Hayashi, Hiroki; Mihara, Yutaka

    We have developed a fabrication technique of micro-dies made of titanium super plastic alloy. Shapes of micro silicon structures, which are formed on a silicon substrate by micromachining technique, were imprinted to titanium super plastic alloy using a vacuum press machine at a temperature of 720 °C. We investigated the method to flatten the sidewall of dry-etched silicon structures, and obtained the surface roughness of less than 10 nm. A graded layer of TiN/Ti film, which is deposited on the silicon microstructures by sputtering, was also examined to prevent titanium diffusion into the silicon microstructures during the high temperature pressing. Using the developed technique, a concave titanium super plastic alloy mold for an optical wave-guide was successfully produced, exhibiting filling factor of 99.58%.

  18. 75 FR 11913 - Chrysler, LLC, Sterling Stamping Plant, Including On-Site Leased Workers from Caravan Knight...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-12

    .... The notice was published in the Federal Register on February 2, 2009 (74 FR 5870). At the request of... workers assemble automotive vehicles; specifically the production of metal automotive stampings....

  19. The Hot-Pressing of Hafnium Carbide (Melting Point, 7030 F)

    NASA Technical Reports Server (NTRS)

    Sanders, William A.; Grisaffe, Salvatore J.

    1960-01-01

    An investigation was undertaken to determine the effects of the hot-pressing variables (temperature, pressure, and time) on the density and grain size of hafnium carbide disks. The purpose was to provide information necessary for the production of high-density test shapes for the determination of physical and mechanical properties. Hot-pressing of -325 mesh hafnium carbide powder was accomplished with a hydraulic press and an inductively heated graphite die assembly. The ranges investigated for each variable were as follows: temperature, 3500 to 4870 F; pressure, 1000 to 6030 pounds per square inch; and time, 5 to 60 minutes. Hafnium carbide bodies of approximately 98 percent theoretical density can be produced under the following minimal conditions: 4230 F, 3500 pounds per square inch, and 15 minutes. Further increases in temperature and time resulted only in greater grain size.

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

    NASA Technical Reports Server (NTRS)

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

    1984-01-01

    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.

  1. NASA/MSFC Large Stretch Press Study

    NASA Technical Reports Server (NTRS)

    Choate, M. W.; Nealson, W. P.; Jay, G. C.; Buss, W. D.

    1985-01-01

    The purpose of this study was to: A. assess and document the advantages/disadvantages of a government agency investment in a large stretch form press on the order of 5000 tons capacity (per jaw); B. develop a procurement specification for the press; and C. provide trade study data that will permit an optimum site location. Tasks were separated into four major elements: cost study, user survey, site selection, and press design/procurement specification.

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

    NASA Astrophysics Data System (ADS)

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

    2014-05-01

    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.

  3. Finite Element Modelling Full Vehicle Side Impact with Ultrahigh Strength Hot Stamped Steels

    NASA Astrophysics Data System (ADS)

    Taylor, T.; Fourlaris, G.; Cafolla, J.

    2016-08-01

    "Hot stamped boron steel" 22MnB5 has been imperative in meeting the automotive industry's demand for materials exhibiting higher tensile strength in the final component. In this paper, the crash performance of three experimental grades developed for automotive hot stamping technologies, exhibiting wider tensile property ranges than 22MnB5, was validated by finite element modelling full vehicle side impact with the experimental material data applied to the B-pillar reinforcement. The superior anti-intrusive crash performance of grade 38MnB5 was demonstrated, with 11 mm less intrusion of the B-pillar reinforcement compared to 22MnB5. Moreover, the superior "impact-energy absorptive" crash performance of grade 15MnCr5 was demonstrated, with 0.15 kJ greater impact-energy absorption by the B-pillar reinforcement compared to 22MnB5.

  4. Finite Element Modelling Full Vehicle Side Impact with Ultrahigh Strength Hot Stamped Steels

    NASA Astrophysics Data System (ADS)

    Taylor, T.; Fourlaris, G.; Cafolla, J.

    2016-10-01

    "Hot stamped boron steel" 22MnB5 has been imperative in meeting the automotive industry's demand for materials exhibiting higher tensile strength in the final component. In this paper, the crash performance of three experimental grades developed for automotive hot stamping technologies, exhibiting wider tensile property ranges than 22MnB5, was validated by finite element modelling full vehicle side impact with the experimental material data applied to the B-pillar reinforcement. The superior anti-intrusive crash performance of grade 38MnB5 was demonstrated, with 11 mm less intrusion of the B-pillar reinforcement compared to 22MnB5. Moreover, the superior "impact-energy absorptive" crash performance of grade 15MnCr5 was demonstrated, with 0.15 kJ greater impact-energy absorption by the B-pillar reinforcement compared to 22MnB5.

  5. Solid-state superionic stamping with silver iodide-silver metaphosphate glass.

    PubMed

    Jacobs, K E; Hsu, K H; Han, X; Kumar, A; Azeredo, B P; Fang, N X; Ferreira, P M

    2011-10-21

    This paper demonstrates and analyzes the new use of the glassy solid electrolyte AgI-AgPO(3) for direct nanopatterning of thin silver films with feature resolutions of 30 nm. AgI-AgPO(3) has a high room temperature ionic conductivity with Ag( + ) as the mobile ion, leading to silver etch/patterning rates of up to 20 nm s( - 1) at an applied bias of 300 mV. The glass can be melt-processed at temperatures below 200 °C, providing a facile and economical pathway for creating large area stamps, including the 25 mm(2) stamps shown in this study. Further, the glass is sufficiently transparent to permit integration with existing tools such as aligners and imprint tools, enabling high overlay registration accuracy and facilitating insertion into multi-step fabrication recipes. PMID:21934195

  6. Dynamics of a plant RNA virus intracellular accumulation: stamping machine vs. geometric replication.

    PubMed

    Martínez, Fernando; Sardanyés, Josep; Elena, Santiago F; Daròs, José-Antonio

    2011-07-01

    The tremendous evolutionary potential of RNA viruses allows them to thrive despite host defense mechanisms and endows them with properties such as emergence, host switching, and virulence. The frequency of mutant viruses after an infectious process results from the interplay between the error rate of the viral replicase, from purifying mechanisms acting after transcription on aberrant RNAs, and from the amplification dynamics of virus RNA positive (+) and negative (-) strands. Two extreme scenarios describing viral RNA amplification are the geometric growth, in which each RNA strand serves as template for the synthesis of complementary strands with the same efficiency, and the stamping machine, where a strand is reiteratively used as template to synthesize multiple copies of the complementary. The resulting mutation frequencies are completely different, being geometric growth largely more mutagenic than stamping machine. In this work we evaluate the contribution of geometric growth and stamping machine to the overall genome amplification of the plant (+)-strand RNA virus turnip mosaic virus (TuMV). By means of transfection experiments of Nicotiana benthamiana protoplasts with a TuMV cDNA infectious clone and by using strand-specific quantitative real-time PCR, we determined the amplification dynamics of viral (+) and (-) RNA during a single-cell infectious process. A mathematical model describing the amplification of each viral strand was fitted to the data. Analyses of the model parameters showed that TuMV (+) and (-) RNA amplification occurs through a mixed strategy with ∼93% of genomes produced via stamping machine and only ∼7% resulting from geometric growth. PMID:21515574

  7. Prediction of part shape and associated material properties in hot-press forming using Unite element analysis

    NASA Astrophysics Data System (ADS)

    Kim, Hwigeon; Ha, Jinjin; Lee, Myoung-Gyu; Barlat, Frederic

    2016-08-01

    The hot-press forming of a U-channel was conducted on a boron-steel blank. The die consisted of two separate parts in order to perform the partial quenching process. The cold die was initially at 25 °C while the heated die was set to five different temperatures, namely, 25, 120, 220, 320 and 400 °C. The cooling temperature history, Vickers hardness and springback of the channel were measured. A thermo-mechanical-metallurgical model, which accounts for the prior austenite deformation effect, was successfully implemented in the LS-DYNA explicit solver to simulate the hot-press forming process under partial quenching conditions. The predicted and experimental results were compared and found in reasonable agreement.

  8. [The press and family planning].

    PubMed

    Abraham De D'ornellas, R

    1987-01-01

    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

  9. Sheet Metal Stamping Analysis and Process Design based on the Inverse Approach

    SciTech Connect

    Batoz, Jean-Louis; Naceur, Hakim; Guo Yingqiao

    2007-04-07

    The simplified (one step) method also called 'inverse approach' (IA) for the numerical analysis of the stamping process has been continuously developed by the authors since the end of the eighties (1, 2, 3, 4). In the present paper we recall the main finite element formulation aspects of a robust IA analysis code, called FAST{sub S}TAMP, for an efficient estimation of the large elastoplastic strains (in particular the thickness strains) encountered in deep drawing operations. Our results will be presented and compared with others, obtained either from experiments or from incremental codes such as ABAQUS or STAMPACK. The presentation includes 'math based' optimization algorithms and strategies for process parameter design. The cost functions and constraints are mainly express to reduce or control the thickness changes, the localized necking, the wrinkling tendency, the springback effects after forming. The design variables are describing the shape of the blank and the tools, the restraining forces due to drawbeads, material properties such as anisotropy coefficient and hardening exponent. Results will be presented to show the actual capabilities of the coupled analysis and optimization strategy with application to the design of stamping parameters.

  10. Fabrication of 3D high aspect ratio PDMS microfluidic networks with a hybrid stamp.

    PubMed

    Kung, Yu-Chun; Huang, Kuo-Wei; Fan, Yu-Jui; Chiou, Pei-Yu

    2015-04-21

    We report a novel methodology for fabricating large-area, multilayer, thin-film, high aspect ratio, 3D microfluidic structures with through-layer vias and open channels that can be bonded between hard substrates. It is realized by utilizing a hybrid stamp with a thin plastic sheet embedded underneath a PDMS surface. This hybrid stamp solves an important edge protrusion issue during PDMS molding while maintaining necessary stamp elasticity to ensure the removal of PDMS residues at through-layer regions. Removing edge protrusion is a significant progress toward fabricating 3D structures since high aspect ratio PDMS structures with flat interfaces can be realized to facilitate multilayer stacking and bonding to hard substrates. Our method also allows for the fabrication of 3D deformable channels, which can lead to profound applications in electrokinetics, optofluidics, inertial microfluidics, and other fields where the shape of the channel cross section plays a key role in device physics. To demonstrate, as an example, we have fabricated a microfluidic channel by sandwiching two 20 μm wide, 80 μm tall PDMS membranes between two featureless ITO glass substrates. By applying electrical bias to the two ITO substrates and pressure to deform the thin membrane sidewalls, strong electric field enhancement can be generated in the center of a channel to enable 3D sheathless dielectrophoretic focusing of biological objects including mammalian cells and bacteria at a flow speed up to 14 cm s(-1).

  11. Two Piece Compaction Die Design

    SciTech Connect

    Coffey, Ethan N

    2010-03-01

    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

  12. Dying and multiplying life.

    PubMed

    Rodríguez-Arias, David

    2014-09-01

    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

  13. The Dying Day

    NASA Astrophysics Data System (ADS)

    Heiles, Carl

    1993-05-01

    The 85-foot telescope's dying day was part of a week of memorably unusual weather---which, in turn, was part of a memorable winter in California (and elsewhere!). On this day, it spent several hours finishing a months-long, apparently successful observation of Zeeman splitting of the 18-cm OH lines in absorption against the Galactic center continuum source Sgr A. Later, it continued a survey of weak diffuse radio recombination lines near the Galactic plane---observations that were interrupted by strong winds, which made the telescope move to the stow position. We know the rest. Had the telescope not been destroyed, it would have been reconfigured the following day to observe the 21-cm line. It would have continued an ongoing survey of interstellar magnetic fields using Zeeman splitting of the 21-cm line. It would have begun a search for broad, weak line wings, which had been previously discovered in association with supernova remnants. It would have been involved in a number of H I mapping projects. And it would have continued its measurements of diffuse radio recombination lines. Had it not been for the inclement weather, the weekend would have seen it being used in laboratory exercises for undergraduates at UC Berkeley.

  14. The Press vs. Professional Wrestling: How the Press Covered WrestleMania III.

    ERIC Educational Resources Information Center

    Ortizano, Giacomo L.

    This paper analyzes the relationship between the press and professional wrestling. It examines professional wrestling as a business and the conflicting goals of the promoters and the press. The paper focuses on how the press covered the most widely viewed professional wrestling show of all time, WrestleMania III (looking at newspaper coverage…

  15. Nanocontact printing of nonplanar substrate by using flexible h-PDMS stamp

    NASA Astrophysics Data System (ADS)

    Jo, Jeongdai; Kim, Kwang-Young; Lee, Eung-Sug; Choi, Byung-Oh

    2006-01-01

    The nanocontact printing process of non-planar substrate was conducted on the substrate as coated with the metal thin film on which the mask's pattern was to be printed by using the flexible h-PDMS stamp. In this study, in order to embody non-planar nanocontact print, the following types of nanostructures which were respectively different in a pattern form, a pattern size and a line width: a straight line type, an oblique line type, an L type and an U type. The mask size is 5 x 5 x 0.9 inch, and the pattern form size is 100nm ~ 500nm where the line width ratio and the pattern space are different and the depth is 200nm. The flexible h-PDMS stamp was fabricated by using VDT-731, SIP 6831.1, Fluka 87927 and HMS-301 as a mold material. The flexible h-PDMS stamp with a high resolution corresponds exactly to the master pattern, and could be replicated a pattern up to the size of 100nm. Also, in the surface characteristic, as a result of measuring the wettability, it could be known that the h-PDMS stamp has the surface characteristic of the hydrophobic and surface energy. The adhesion force and the friction force were very low. In the nanocontact printing of non-planar substrates experiment, a substrate of cylindrical on which the Cr adhesion layer of 100Å and the Au etching layer of 500Å were deposited by using the DC sputter and a substrate of ellipsoidal on which the Ti adhesion layer of 100Å and the Pd etching layer of 500Å were deposited in the form of a thin film, were fabricated, and a pattern was transferred to the substrates where to print by the flexible h-PDMS stamp wet with the SAM solution, and nanostructures had a high resolution without any defect could be fabricated. Also, we are seeking for its applicability to a organic electronic device, flexible electronic display, biological electronic device and the like by optimizing the nanocontact printing process.

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

    SciTech Connect

    Orloff, D.I.

    1992-08-01

    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%.

  17. In the Stocks: Perilous Press Releases.

    ERIC Educational Resources Information Center

    Morton, Linda P.; Loving, Bill

    1994-01-01

    Reviews some of the legal responsibilities of public relations practitioners in the preparation of press releases. Discusses legal criteria for judging the fraudulence of press releases and discusses the timeframe for fraudulent action. Concludes with lessons that practitioners need to understand. (SR)

  18. The Egyptian Press: An Official Fourth Estate.

    ERIC Educational Resources Information Center

    Lawhorne, Clifton O.

    A descriptive study based on Egyptian law, printed sources, and interviews clarifies our picture of the Egyptian Press by examining its status as a constitutionally mandated "Fourth Estate." The constitutional amendment, the resultant Egyptian Press Law, and the "Law Of Shame" (all passed in 1980), are designed to create a heavily controlled press…

  19. Fracture toughness of hot-pressed beryllium

    NASA Technical Reports Server (NTRS)

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

    1985-01-01

    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.

  20. Improving care of dying children.

    PubMed Central

    Martinson, I M

    1995-01-01

    Every year about 5,000 children aged 0 to 14 years need hospice care in the United States. Children seem to know that they are dying, although this is difficult for parents to accept. Clear, empathic understanding is needed. Communication with clarity and understanding is imperative with the changes in goals from cure to palliation to comfort. The ideal place for most dying children is at home, where symptoms can be managed as effectively as in a hospital. PMID:7571589

  1. REFRACTORY DIE FOR EXTRUDING URANIUM

    DOEpatents

    Creutz, E.C.

    1959-08-11

    A die is presented for the extrusion of metals, said die being formed of a refractory complex oxide having the composition M/sub n/O/sub m/R/sub x/O/sub y/ where M is magnesium, zinc, manganese, or iron, R is aluminum, chromic chromium, ferric iron, or manganic manganese, and m, n, x, and y are whole numbers. Specific examples are spinel, magnesium aluminate, magnetite, magnesioferrite, chromite, and franklinite.

  2. Dying at the best time.

    PubMed

    Seale, C; Addington-Hall, J

    1995-03-01

    These are the results of two surveys of relatives, and others who knew people who had died, describing events in the year before death and their views on the time of the person's death. Those surveyed were identified from death certificates in England. The main focus is on a sample of 3696 people dying in 1990 in 20 health authorities, with supporting analysis from an earlier national sample of 639 people dying in 1987. Variation in peoples' views about whether an earlier death would have been better is reported, in the context of debate about euthanasia. Spouses were less likely than others to feel that it would have been better if the person had died earlier, and this held true even when controlling for the deceaseds' levels of pain, distress, dependency and age. Spouses were more likely than others to say that a later death would have been better, though not in cases where the deceased was reported as having said they wanted to die sooner. Spouses were influenced by the loss which the death of the person represented for them, being more likely than others to say they missed the person who died a great deal, and feel loneliness was a big problem. Non spouses (children and other relatives of the deceased, friends, neighbours and a few officials) on the other hand were more likely than spouses to say an earlier death would have been better, even when levels of pain, distress, dependency and age were controlled for.(ABSTRACT TRUNCATED AT 250 WORDS)

  3. Powder pressing in a macrosonic field

    NASA Technical Reports Server (NTRS)

    Protipopescu, A.; Dragan, O.; Ciovica, D.

    1974-01-01

    An investigation was conducted to extend the technology of powder product manufacturing to new forms and sizes, to improve their quality as well as pressing efficiency and to reduce waste. In the course of metal and nonmetal powder briquette pressing, macrosounds were associated with the external static pressing force, which led to an increase in the relative height, density and physicomechanical characteristics of the briquettes. This method permits the extension of the range of products that can be manufactured from powders and the improvement of their quality.

  4. STS-8 onboard crew press conference

    NASA Technical Reports Server (NTRS)

    1983-01-01

    Six news reporters listen to a response from Astronaut Guion S. Bluford (note TV monitor) in a rare space-to-Earth press conference involving all the STS-8 crew. The participants are, left to right, Gary Schwitzer, Cable News Network; Morton Dean, CBS; Roy Neal, NBC; Lynn Sherr, ABC; Howard Benedict, Associated Press; Al Rossiter, United Press International. The astronauts on the monitor are Richard H. Truly, cneter left, crew commander; Daniel C. Brandenstein, lower left, pilot; and Dr. William E. Thornton, upper left, Guion S. Bluford, upper right; and Dale E. Gardner, all mission specialists.

  5. Ordered nano-structure of a stamped self-organized protein layer on a HOPG surface using a HFB carrier.

    PubMed

    Iwanaga, Atsushi; Asakawa, Hitoshi; Fukuma, Takeshi; Nakamichi, Momoka; Shigematsu, Sakurako; Linder, Markus B; Haruyama, Tetsuya

    2011-06-01

    A groundbreaking method for ordered molecular layer preparation on a solid surface employing the drop-stamp method has been developed by us taking advantage of the characteristics of the HFB molecule as a self-organizer/adsorption carrier. It is a smart method which can be used to prepare a self-organized protein layer on a solid surface without unspecific adsorption or defects. In our previous report, we clarified the self-organizing nature of HFB-tagged protein molecules on a surface of a solution droplet. In this report, a protein layer was prepared on a HOPG surface by using the drop-stamp method with a maltose binding protein (MBP)-tagged HFBII molecule. The structure of the stamped protein layer was investigated using frequency modulation atomic force microscopy (FM-AFM) in a liquid condition. The FM-AFM images show that the drop-stamp method can prepare an ordered protein layer on a solid surface smartly. The drop-stamp method using a HFB carrier is a practical method which can be used to prepare an ordered protein layer on a solid substrate surface without unspecific adsorption defects.

  6. Use of atomic force microscopy in the forensic application of chronological order of toners and stamping inks in questioned documents.

    PubMed

    Kang, Tae-Yi; Lee, Joong; Park, Byung-Wook

    2016-04-01

    This paper describes the application of the atomic force microscopy (AFM) as a nano-indentation method and introduces a new method of identifying the chronological order of the application of the toner and stamping ink on the surface of documents by removing either of them. Various toners were used as samples for the AFM nano-indentation method. The chronological order of the application of the toner and stamping ink with either the toner placed over the stamping ink or the stamping ink placed over the toner, could be identified, regardless of the kinds of toners made by various companies. This paper provides the new approach for physically removing the toner and checking the material below it to identify questioned documents, which allows the method to be used to appraise documents forensically. Blind testing has shown that the method to analyze the chronological order of toner-printed documents and the seal stamping on them could accurately identify the order in all samples, while minimizing damage to the samples. PMID:26874052

  7. Fabrication of a roller type PDMS stamp using SU-8 concave molds and its application for roll contact printing

    NASA Astrophysics Data System (ADS)

    Park, Jongho; Kim, Beomjoon

    2016-03-01

    Continuous fabrication of micropatterns at low-cost is attracting attention in various applications within industrial fields. To meet such demands, we have demonstrated a roll contact printing technique, using roller type polydimethylsiloxane (PDMS) stamps with roll-to-flat and roll-to-roll stages. Roller type PDMS stamps for roll contact printing were fabricated using a custom-made metal support and SU-8 microstructures fabricated on concave substrates as a mold. The molding/casting method which we developed here provided faster and easier fabrication than conventional methods for roller type stamps. Next, roll contact printing was performed using fabricated roller type PDMS stamps with roll-to-flat and roll-to-roll stages. Patterns with minimum widths of 3 μm and 2.1 μm were continuously fabricated for each stage, respectively. In addition, the relationship between applied pressures and dimensional changes of roll contact printed patterns was investigated. Finally, we confirmed that roll contact printing and the new fabrication method for roller stamps presented in this study demonstrated the feasibility for industrial applications.

  8. Springback analysis for the stamping of an automotive part with high strength steel sheet

    NASA Astrophysics Data System (ADS)

    Hung, Tzu-Hao; Tsai, Heng-Kuang; Chang, Chih-Kai; Hsu, Yu-Hung; Chen, Fuh-Kuo; Chung, Kuo-Hsin

    2013-05-01

    The study of springback analysis of 440MPa high strength steel is investigated in this paper. Because of the springback phenomenon is related to the material properties and the deformation mechanism during the forming process, the material properties of 440MPa high strength steel are studied at first. The material properties of 440MPa high strength steel are obtained by conducting cyclic uniaxial tension-compression tests with different strain ranges. In order to apply the material properties obtained from the experiments to the finite element analysis, the material constants required in the Yoshida-Uemori model (Y-U model) with the Bauschinger effect considered are established. For realizing the springback characteristics of 440MPa high strength steel, the U-hat draw-bending and V-shape bending are examined by the finite element analysis. From the simulation results, it finds that the side wall curl phenomenon occurs in the U-hat drawbending and the springback phenomenon appears in the V-shape bending. Moreover, it also shows that the side wall curl phenomenon and springback phenomenon are more obvious in the finite element simulations with the Bauschinger effect considered. Finally, the validation of springback prediction is performed by stamping an engine hood reinforcement with 440MPa high strength steel sheet. From the stamping results, it shows that the simulation results of springback prediction are in a well agreement to the production part data. It also finds that the springback predictions are more accurate by the finite element simulations with the use of the Y-U model. It is also found that for a stamping part which is subjected to a reversed tension-compression deformation in the forming process, the occurrence of the Bauschinger effect is obvious. It is also concluded that the accuracy of springback prediction can be much improved by the use of material model with the Bauschinger effect considered.

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

    NASA Astrophysics Data System (ADS)

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

    2007-05-01

    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.

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

    SciTech Connect

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

    2007-05-17

    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.

  11. FE Simulation of Effective Distributed Binder Force Trajectories on Stamping Performance

    NASA Astrophysics Data System (ADS)

    Yagami, Tetsuya; Manabe, Ken-ichi

    2004-06-01

    The effect of variable distributed binder force control on the stamping performance of non-axisymmetric part was evaluated using commercial finite element (FE) code LS-DYNA. Distributed binder force control was performed in FE simulation of square-cup deep-drawing process by introducing a segment binder with 108 segments. To obtain effective binder force trajectories for the binder segments, a binder force process control algorithm based on fuzzy inference method was presented and applied in the simulation. From the implementation of the simulation for several material models with linear hardening plasticity, the possibility of improvement in forming height was demonstrated.

  12. Nano-silicon based photonic crystal stamps with electron beam lithography (EBL) technology

    NASA Astrophysics Data System (ADS)

    Jannesari, Reyhaneh; Bergmair, Iris; Zamiri, Saeid; Hingerl, Kurt

    2010-04-01

    We report on using e-beam lithographically technology for enabling the mass replication of custom-designed and prepared Nano-structures via establishing nanoimprint processes for pattern transfer into UV curable prepolymes. By EBL, the new nano-fabrication technology based on the concept of disposal master technology (DMT) is suitable for mass volume manufacturing of large area arrays of sub-wavelength photonic elements. We will present some kinds of PhC and waveguides for fabrication of nanoimprint Electron beam lithography stamps.

  13. Analysis of the Phenomenon of Speculative Trading in One of its Basic Manifestations:. Postage Stamp Bubbles

    NASA Astrophysics Data System (ADS)

    Roehner, B.; Sornette, D.

    We document and analyze the empirical facts concerning one of the clearest evidence of speculation in financial trading as observed in the postage collection stamp market. We unravel some of the mechanisms of speculative behavior which emphasize the role of fancy and collective behavior. In our conclusion, we propose a classification of speculative markets based on two parameters, namely the amplitude of the price peak and a second parameter that measures its "sharpness". This study is offered to anchor modeling efforts to realistic market constraints and observations.

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

    PubMed Central

    Fantazzini, Dean

    2014-01-01

    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

  15. Gas-driven filter pressing in magmas

    USGS Publications Warehouse

    Sisson, T.W.; Bacon, C.R.

    1999-01-01

    Most silicic and some mafic magmas expand via second boiling if they crystallize at depths of about 10 km or less. The buildup of gas pressure due to second boiling can be relieved by expulsion of melt out of the region of crystallization, and this process of gas-driven filter pressing assists the crystallization differentiation of magmas. For gas-driven filter pressing to be effective, the region of crystallization must inflate slowly relative to buildup of pressure and expulsion of melt These conditions are satisfied in undercooled magmatic inclusions and in thin sheets of primitive magma underplating cooler magma reservoirs. Gas-driven filter pressing thereby adds fractionated melt to magma bodies. Gas-driven filter pressing is probably the dominant process by which highly evolved melts segregate from crystal mush to form aplitic dikes in granitic plutons; this process could also account for the production of voluminous, crystal-poor rhyolites.

  16. HOT PRESSING WITH A TEMPERATURE GRADIENT

    DOEpatents

    Hausner, H.H.

    1958-05-20

    A method is described for producing powder metal compacts with a high length to width ratio, which are of substantially uniform density. The process consists in arranging a heating coil around the die and providing a temperature gradient along the length of the die with the highest temperature at the point of the compact farthest away from the ram or plunger.

  17. Pellet-press-to-sintering-boat nuclear fuel pellet loading system

    SciTech Connect

    Bucher, G.D.

    1988-08-23

    This patent describes a system for loading nuclear fuel pellets into a sintering boat from a pellet press which ejects newly made the pellets from a pellet press die table surface. The system consists of: (a) a bowl having an inner surface, a longitudinal axis, an open and generally circular top of larger diameter, and an open and generally circular bottom of smaller diameter; (b) means for supporting the bowl in a generally upright position such that the bowl is rotatable about its longitudinal axis; (c) means for receiving the ejected pellets proximate the die table surface of the pellet press and for discharging the received pellets into the bowl at a location proximate the inner surface towards the top of the bowl with a pellet velocity having a horizontal component which is generally tangent to the inner surface of the bowl proximate the location; (d) means for rotating the bowl about the longitudinal axis such that the bowl proximate the location has a velocity generally equal, in magnitude and direction, to the horizontal component of the pellet velocity at the location; and (e) means for moving the sintering boat generally horizontally beneath and proximate the bottom of the bowl.

  18. Use of RSP Tooling to Manufacture Die Casting Dies

    SciTech Connect

    Kevin McHugh

    2004-07-01

    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

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

    PubMed Central

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

    2014-01-01

    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

  20. Numerical Modeling for Springback Predictions by Considering the Variations of Elastic Modulus in Stamping Advanced High-Strength Steels (AHSS)

    NASA Astrophysics Data System (ADS)

    Kim, Hyunok; Kimchi, Menachem

    2011-08-01

    This paper presents a numerical modeling approach for predicting springback by considering the variations of elastic modulus on springback in stamping AHSS. Various stamping tests and finite-element method (FEM) simulation codes were used in this study. The cyclic loading-unloading tensile tests were conducted to determine the variations of elastic modulus for dual-phase (DP) 780 sheet steel. The biaxial bulge test was used to obtain plastic flow stress data. The non-linear reduction of elastic modulus for increasing the plastic strain was formulated by using the Yoshida model that was implemented in FEM simulations for springback. To understand the effects of material properties on springback, experiments were conducted with a simple geometry such as U-shape bending and the more complex geometry such as the curved flanging and S-rail stamping. Different measurement methods were used to confirm the final part geometry. Two different commercial FEM codes, LS-DYNA and DEFORM, were used to compare the experiments. The variable elastic modulus improved springback predictions in U-shape bending and curved flanging tests compared to FEM with the constant elastic modulus. However, in S-rail stamping tests, both FEM models with the isotropic hardening model showed limitations in predicting the sidewall curl of the S-rail part after springback. To consider the kinematic hardening and Bauschinger effects that result from material bending-unbending in S-rail stamping, the Yoshida model was used for FEM simulation of S-rail stamping and springback. The FEM predictions showed good improvement in correlating with experiments.

  1. Food stamps are associated with food security and dietary intake of inner-city preschoolers from Hartford, Connecticut.

    PubMed

    Pérez-Escamilla, R; Ferris, A M; Drake, L; Haldeman, L; Peranick, J; Campbell, M; Peng, Y K; Burke, G; Bernstein, B

    2000-11-01

    The goal of the present study was to examine the association of the Food Stamp Program with the food security and dietary intake of low-income children from Hartford, CT, who were enrolled in the Supplemental Food Program for Women, Infants, and Children (WIC). We compared the food and nutrition situation of low-income preschoolers who received food stamps (FS, n = 59) with that of those who did not receive food stamps (NFS, n = 40). Children were an average age of 2.7 +/- 0.6 y, and 95% were receiving WIC benefits at the time of the study. Groups were comparable in demographic characteristics, but the socioeconomic status of the FS group was lower than that of the NFS group (P < 0.05). Food security was assessed with the Radimer/Cornell hunger scale, and dietary intake was assessed with a single 24-h recall and a 14-item food frequency questionnaire. Multivariate analyses within the FS group indicated that a monthly duration of food stamps of <4 wk was a predictor of household food security (odds ratio 0.10, 95% confidence interval 0.02-0.56). Food stamp use was associated with above-median energy-adjusted intakes of vitamin B-6 (3.13, 1.16-8.45), folate (2.92, 1.09-7.81) and iron (3.72, 1.31-10.54). The NFS children were more likely to consume <8 mg iron/d (3.73, 1.09-12.80). These results suggest that the Food Stamp Program is associated with food security and preschoolers' micronutrient intake.

  2. Estimation of Thermal Contact Conductance between Blank and Tool Surface in Hot Stamping Process

    NASA Astrophysics Data System (ADS)

    Taha, Zahari; Hanafiah Shaharudin, M. A.

    2016-02-01

    In hot stamping, the determination of the thermal contact conductance values between the blank and tool surface during the process is crucial for the purpose of simulating the blank rapid cooling inside the tool using finite element analysis (FEA). The thermal contact conductance value represents the coefficient of the heat transfer at the surface of two solid bodies in contact and is known to be influenced greatly by the applied pressure. In order to estimate the value and its dependency on applied pressure, the process of hot stamping was replicated and simplified into a process of compression of heated flat blank in between the tool at different applied pressure. The temperature of the blank and tool surface were measured by means of thermocouples installed inside the tool. Based on the measured temperature, the thermal contact conductance between the surfaces was calculated using Newton's cooling law equation. The calculated value was then used to simulate the blank cooling inside the tool using FEA commercial software. This paper describes an experimental approach to estimate the thermal contact conductance between a blank made of Boron Steel (USIBOR 1500) and tool made of Tool Steel (STAVAX). Its dependency on applied pressure is also studied and the experimental results were then compared with FEA simulations.

  3. Label-free, multiplexed, molecular sensing and imaging by stamping SERS

    NASA Astrophysics Data System (ADS)

    Li, Ming; Zhao, Fusheng; Zeng, Jianbo; Santos, Greggy M.; Shih, Wei-Chuan

    2015-03-01

    Surface-enhanced Raman spectroscopy (SERS) is a spectroscopic technique, where Raman scattering is boosted primarily by enhanced electric field due to localized surface plasmon resonance (LSPR). With advances in nanofabrication techniques, SERS has attracted great attention for label-free molecular sensing and imaging. However, the practical use of SERS has often encountered an inherent issues regarding a molecule transfer step where target molecules need to be within the close proximity of a SERS-active surface by either mixing with nanoparticles or coating onto surface-bound nanostructures. To address this issue, we have developed stamping surface-enhanced Raman spectroscopy (S-SERS) for label-free, multiplexed, molecular sensing and large-area, high-resolution molecular imaging on a flexible, non-plasmonic 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 (R6G), urea, and its mixture with acetaminophen (APAP), in physiologically relevant concentration range, along with 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.

  4. Experimental Investigation About Stamping Behaviour of 3D Warp Interlock Composite Preforms

    NASA Astrophysics Data System (ADS)

    Dufour, Clément; Wang, Peng; Boussu, François; Soulat, Damien

    2014-10-01

    Forming of continuous fibre reinforcements and thermoplastic resin commingled prepregs can be performed at room temperature due to its similar textile structure. The "cool" forming stage is better controlled and more economical. The increase of temperature and the resin consolidation phases after the forming can be carried out under the isothermal condition thanks to a closed system. It can avoid the manufacturing defects easily experienced in the non-isothermal thermoforming, in particular the wrinkling [1]. Glass/Polypropylene commingled yarns have been woven inside different three-dimensional (3D) warp interlock fabrics and then formed using a double-curved shape stamping tool. The present study investigates the in-plane and through-thickness behaviour of the 3D warp interlock fibrous reinforcements during forming with a hemispherical punch. Experimental data allow analysing the forming behaviour in the warp and weft directions and on the influence of warp interlock architectures. The results point out that the layer to layer warp interlock preform has a better stamping behaviour, in particular no forming defects and good homogeneity in thickness.

  5. Shape optimization of three-dimensional stamped and solid automotive components

    NASA Technical Reports Server (NTRS)

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

    1987-01-01

    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.

  6. Microstructure, Mechanical Properties, and Toughening Mechanisms of a New Hot Stamping-Bake Toughening Steel

    NASA Astrophysics Data System (ADS)

    Lin, Tao; Song, Hong-Wu; Zhang, Shi-Hong; Cheng, Ming; Liu, Wei-Jie; Chen, Yun

    2015-09-01

    In this article, the hot stamping-bake toughening process has been proposed following the well-known concept of bake hardening. The influences of the bake time on the microstructure and the mechanical properties of the hot stamped-baked part were studied by means of scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and mechanical tests at room temperature. The results show that the amount of the retained austenite was nearly not changed by the bake process. Also observed were spherical Cu-rich precipitates of about 15 nm in martensite laths. According to the Orowan mechanism, their contribution of the Cu-rich precipitates to the strength is approximately 245 MPa. With the increase of the bake time, the tensile strength of the part was decreased, whereas both the ductility and the product of the tensile strength and ductility were increased then decreased. The tensile strength and ductility product and the tensile strength are as high as 21.9 GPa pct, 2086 MPa, respectively. The excellent combined properties are due to the transformation-induced plasticity effect caused by retained austenite.

  7. Clinical management of dying patients.

    PubMed Central

    Gavrin, J; Chapman, C R

    1995-01-01

    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

  8. Acting to let someone die.

    PubMed

    McGee, Andrew

    2015-02-01

    This paper examines the recent prominent view in medical ethics that withdrawing life-sustaining treatment (LST) is an act of killing. I trace this view to the rejection of the traditional claim that withdrawing LST is an omission rather than an act. Although that traditional claim is not as problematic as this recent prominent view suggests, my main claim is that even if we accepted that withdrawing LST should be classified as an act rather than as an omission, it could still be classified as letting die rather than killing. Even though omissions are contrasted with acts, letting die need not be, for one can let die by means of acts. The remainder of the paper is devoted to establishing this claim and addresses certain objections to it.

  9. On dying and human suffering.

    PubMed

    Kellehear, A

    2009-07-01

    This review compares and contrasts the major reoccurring themes in two sources of research literature - social studies of dying and human suffering. The purpose of such a comparison is to employ the major insights of each field as a useful method of critically evaluating the insights of the other. Critical exchanges and comparisons between the research area of dying studies and on human suffering have been modest to date. This article will explain that the experience of dying benefits from being situated and analysed in a broader context of cultural experience, as suggested by the theory and study of human suffering. Conversely, the theory and methods involved in studies of human suffering can gain from a mortal view of vulnerability, grief, social ambiguity and identity changes characteristic of experiences at the end of life.

  10. Clinical management of dying patients.

    PubMed

    Gavrin, J; Chapman, C R

    1995-09-01

    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.

  11. Care of the Dying Adolescent

    PubMed Central

    MacDonald, Faye

    1979-01-01

    This is a description of the obstacles encountered in the management of one 17 year old patient dying with malignant melanoma. Various areas are seen to contribute to the difficulties including the “health care system” (specifically the hospital environment), the patient himself, his family, his disease and its treatment, and his physician(s). An increased awareness of the difficulties would be helpful to those of us not frequently encountering the responsibility of caring for a dying adolescent. The details have been left vague or slightly changed in this real case to respect the privacy of those involved. PMID:21297759

  12. [Dying with cancer: Hollywood lessons].

    PubMed

    Niemeyer, Fernanda; Kruse, Maria Henriqueta Luce

    2013-12-01

    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.

  13. Portable punch and die jig

    DOEpatents

    Lewandowski, Edward F.; Anderson, Petrus A.

    1978-01-01

    A portable punch and die jig includes a U-shaped jig of predetermined width having a slot of predetermined width in the base thereof extending completely across the width of the jig adapted to fit over the walls of rectangular tubes and a punch and die assembly disposed in a hole extending through the base of the jig communicating with the slot in the base of the jig for punching a hole in the walls of the rectangular tubes at precisely determined locations.

  14. Die Herz-Lungen-Maschine

    NASA Astrophysics Data System (ADS)

    Krane, Markus; Bauernschmitt, Robert; Lange, Rüdiger

    Das Kapitel der modernen Herzchirurgie mit Einsatz der Herz-Lungen-Maschine am Menschen beginnt am 6. Mai 1953, als J. Gibbon bei einer 18-jährigen Patientin einen angeborenen Defekt in der Vorhofscheidewand verschließt [1]. Mit ersten experimentellen Versuchen zur extrakorporalen Zirkulation begann Gibbon bereits in den 30er Jahren des 20. Jahrhunderts. Die Grundlage für die heute gebräuchliche Rollerpumpe schufen Porter und Bradley mit ihrer "rotary pump“, welche sie 1855 zum Patent anmeldeten. Diese Pumpe wurde von DeBakey und Schmidt modifiziert und entspricht im Wesentlichen noch der heute sich im Routinebetrieb befindlichen Rollerpumpe [2].

  15. Finite element analysis of die angle at constant offset length in two-turn ECAP

    NASA Astrophysics Data System (ADS)

    Kumar, Pintu; Sekhar Panda, Sudhansu

    2016-09-01

    Severe plastic deformation (SPD) is the process used to produce smaller grain in the range of 1-pm. These materials have been classified as equiaxed ultrafine grain (UFG) metals. These metals are characterised by high defect density and improved mechanical properties which make them suitable for advanced structural applications. From all available SPD techniques, two turn incremental equal channel angular pressing (ECAP), S-shape channel discussed in this paper to double the effective strain in single press. Analysis of ECAP technique by changing die geometry and process parameter helps to produce defect free UFG metals. ECAP channel continuously pressed a very long billet in which repetitions accumulate large plastic strain. Two turn ECAP is useful to increase the productivity. However, any changes in channel angle, corner angle as well as offset length are cause for variation in mechanical properties of metals. In order to check the die suitability of two-turn ECAP with variation of die angle a finite element analysis (FEA) simulation is carried out and the suitable tool geometry with process kinematics are established. ECAP channels at two different channel angles are used to study the flow behaviour of metal through 15mm offset length. The mode of material flow is the same as in the well-established classical L-shape ECAP process following route C pass, while continuous character and improved productivity suggest that new S-shape ECAP process might be suitable for grain refinement of metals as well as minimization of deformation load on an industrial scale.

  16. Graphic Arts: Book Three. The Press and Related Processes.

    ERIC Educational Resources Information Center

    Farajollahi, Karim; And Others

    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…

  17. Textbook Sales Drop, and University Presses Search for Reasons

    ERIC Educational Resources Information Center

    Howard, Jennifer

    2008-01-01

    This article reports that textbook sales are falling at many university presses, a trend that has accelerated in the past couple of months. That's the word from press directors anxious about the decline but unsure what's causing it or how to stop it. Not every press has been affected. Two of the biggest players, Oxford University Press and…

  18. Along Freedom's Double Edge: The Arab Press Under Israeli Occupation.

    ERIC Educational Resources Information Center

    Nasser, Munir K.

    This paper examines the Arab press under Israeli occupation and presents two hypotheses: freedom of the press under occupation serves both Israeli interests and the Arab population, and freedom of the Arab press under occupation is "relative" and "controlled." By allowing freedom of expression, the Israelis achieve several aims: a free press will…

  19. Discrete element simulation of powder compaction in cold uniaxial pressing with low pressure

    NASA Astrophysics Data System (ADS)

    Rojek, Jerzy; Nosewicz, Szymon; Jurczak, Kamila; Chmielewski, Marcin; Bochenek, Kamil; Pietrzak, Katarzyna

    2016-11-01

    This paper presents numerical studies of powder compaction in cold uniaxial pressing. The powder compaction in this work is considered as an initial stage of a hot pressing process so it is realized with relatively low pressure (up to 50 MPa). Hence the attention has been focused on the densification mechanisms at this range of pressure and models suitable for these conditions. The discrete element method employing spherical particles has been used in the numerical studies. Numerical simulations have been performed for two different contact models—the elastic Hertz-Mindlin-Deresiewicz model and the plastic Storåkers model. Numerical results have been compared with the results of laboratory tests of the die compaction of the NiAl powder. Comparisons have shown that the discrete element method is capable to represent properly the densification mechanisms by the particle rearrangement and particle deformation.

  20. Particle Characterization of Pressed Granular HMX

    NASA Astrophysics Data System (ADS)

    Burnside, N. J.; Son, S. F.; Skidmore, C. B.; Asay, B. W.

    1997-07-01

    Often, little material characterization is reported in studies that use granular explosives, such as deflagration-to-detonation transition (DDT) experiments. This lack of characterization makes modeling and interpretation of the experiments difficult. Further, very little is known about how particle size changes with compaction processes, even for quasi-static pressing. Changes in available surface area could significantly affect the initiation of such materials. In this work we report measurements of the particle size distribution of original granular HMX, as well as the size distribution of pressed (higher density) samples. Scanning electron microscope (SEM) pictures are presented and are found to be useful in interpreting the size distribution measurements of the granular HMX, as well as helping to more fully characterizing the state of the particles. We find that the particle size distribution changes significantly with pressing. That is, particles are observed to be highly fractured and damaged at higher pressed densities. Also, we have found that sample preparation can significantly affect size distribution measurements. In particular, even short duration sonication can have a significant effect on the measured size distributions of pressed HMX samples.

  1. Lever-press conditioning in the crab.

    PubMed

    Abramson, C I; Feinman, R D

    1990-08-01

    An operant chamber has been developed for studying lever-press conditioning in the green crab Carcinus maenas. In one series of experiments, animals were presented with a single bar and were reinforced with food for every bar press. Performance increased over time and high rates of responding were observed after 2 days of training. The response rate was always higher than that for a yoked (noncontingent) control group. When the contingencies were switched, the animals adjusted to the new conditions. Discrimination in the lever-press apparatus was demonstrated in a second experiment in which crabs had to choose between two bars, one (S+) caused food to be dispensed while the other (S-) was inactive. Experimental animals pressed the S+ bar at a significantly higher rate than the S- bar. When the contingencies associated with the lever were reversed, animals learned to switch to the correct bar by the second day. It was not necessary to reinforce every response: animals maintained high rates of responding on a schedule where every other response was reinforced. Animals used different methods of pressing the bar; the most common was extension of the claw, predominantly at the meropodite-carpopodite joint. PMID:2255730

  2. AUPress: A Comparison of an Open Access University Press with Traditional Presses

    ERIC Educational Resources Information Center

    McGreal, Rory; Chen, Nian-Shing

    2011-01-01

    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…

  3. Speaking of a Free Press: 200 Years of Notable Quotations about Press Freedoms.

    ERIC Educational Resources Information Center

    American Newspaper Publishers Association Foundation, Washington, DC.

    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.…

  4. A good way to die.

    PubMed

    Trueland, Jennifer

    2016-03-23

    An end of life care service is providing joined-up care for patients. Care co-ordinators arrange packages of care so patients can die in the place of their choice – often at home. The result is high satisfaction rates among patients, families and staff.

  5. Attitudes on Death and Dying.

    ERIC Educational Resources Information Center

    Andrus, Charles E.

    This paper explored attitudes toward death and dying revealed through interviews with members of the clergy, the medical profession, funeral directors, nursing home residents, and selected others. The sampling was small and results are not intended to be representative of the groups to which these people belong. Rather, the study may be used as a…

  6. Robert Merton Dies at 92

    ERIC Educational Resources Information Center

    Snell, Joel C.

    2006-01-01

    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…

  7. 75 FR 11913 - Chrysler, LLC; Warren Stamping Plant, Including On-Site Leased Workers From Caravan Knight...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-12

    ... the Federal Register on August 21, 2008 (73 FR 49492). At the request of the State agency, the... Employment and Training Administration Chrysler, LLC; Warren Stamping Plant, Including On-Site Leased Workers From Caravan Knight Facilities Management LLC; Warren, MI; Amended Certification Regarding...

  8. Development of a strain analyzer system for sheet metal stamped parts based on an optical 3D digitizer

    NASA Astrophysics Data System (ADS)

    Carasusan, Eusebio; Canal, Fernando

    2003-05-01

    In this paper a new automatic strain analyzer system for sheet metal stamped parts is presented. This device is based on an optic 3D scanner working with structure white light, that performs measurements with high speed and accuracy. This new device can be a very useful tool in manufacturing industry.

  9. The 2005 Dietary Guidlines For Americans: A "Daunting Challenge" for Food-Stamp Recipients in Southeast Louisiana

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Our objectives was to determine whether food stamp (FS)-reliant individuals can meet the food recommendations of the 2005 Dietary Guidelines for Americans (DGA). FS-reliant individuals in South Louisiana have little nutrition knowledge and diets that fail to meet 2005 DGA recommendations for fruit, ...

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

    ERIC Educational Resources Information Center

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

    2009-01-01

    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…

  11. Families in the Expanded Food and Nutrition Education Program: Comparisons of Food Stamp and Food Distribution Program Participants and Nonparticipants.

    ERIC Educational Resources Information Center

    Feaster, J. Gerald; Perkins, Garey B.

    This report compares food consumption and socioeconomic profiles of families participating and not participating in the United States Department of Agriculture's (USDA) food stamp of food distribution programs. Also, regional comparisons of the profiles are made and factors associated with income and food expenditures identified. The sample was…

  12. Aerial view of the Press Site

    NASA Technical Reports Server (NTRS)

    1998-01-01

    In this aerial view, The News Center sits beyond a large parking lot, on a hill at the northeastern end of the Launch Complex 39 Area , next to the turn basin (at left). From left, the grandstand faces the launch pads several miles away on the Atlantic seashore; behind it, the television studio is the site of media conferences; next, the large white-roofed building is the hub of information and activity for press representatives. Lined up on the right of the Press Site are various buildings and trailers, home to major news networks. The parking lot can accommodate the hundreds of media personnel who attend Space Shuttle launches.

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

    NASA Technical Reports Server (NTRS)

    1982-01-01

    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.

  14. Spectral analysis of postage stamps and banknotes from the region of Rijeka in Croatia

    NASA Astrophysics Data System (ADS)

    Jelovica Badovinac, I.; Orlić, N.; Lofrumento, C.; Dobrinić, J.; Orlić, M.

    2010-07-01

    Micro-Raman spectroscopy and X-ray emission spectroscopy induced using radioactive source have been applied to analyze two types of samples important for the history of Rijeka, Croatian port on the Adriatic Sea. In this paper we will present study of thirty-three original Hungarian postage stamps issued for Rijeka and overprinted with the word FIUME in 1918, after the World War I and the one-Lira banknotes (one original brown banknote and four trial prints: brown, blue, green and dark green) from Economy bank for Rijeka, Istria and Slovenian Littoral (1945-1947), the so-called Jugolire. This investigation was carried out to determine the differences between the original machine, original hand-made and fake overprints FIUME and to compare the pigments used on original banknote from circulation with the pigments on the trial prints.

  15. Damage and Failure Analysis of AZ31 Alloy Sheet in Warm Stamping Processes

    NASA Astrophysics Data System (ADS)

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

    2016-07-01

    In this study, a combined experimental-numerical investigation on the failure of AZ31 Mg alloy sheet in the warm stamping process was carried out based on modified GTN damage model which integrated Yld2000 anisotropic yield criterion. The constitutive equations of material were implemented into a VUMAT subroutine for solver ABAQUS/Explicit and applied to the formability analysis of mobile phone shell. The morphology near the crack area was observed using SEM, and the anisotropic damage evolution at various temperatures was simulated. The distributions of plastic strain, damage evolution, thickness, and fracture initiation obtained from FE simulation were analyzed. The corresponding forming limit diagrams were worked out, and the comparison with the experimental data showed a good agreement.

  16. Weld Repair of a Stamped Pressure Vessel in a Radiologically Controlled Zone

    SciTech Connect

    Cannell, Gary L.; Huth, Ralph J.; Hallum, Randall T.

    2013-08-26

    In September 2012 an ASME B&PVC Section VIII stamped pressure vessel located at the DOE Hanford Site Effluent Treatment Facility (ETF) developed a through-wall leak. The vessel, a steam/brine heat exchanger, operated in a radiologically controlled zone (by the CH2MHill PRC or CHPRC), had been in service for approximately 17 years. The heat exchanger is part of a single train evaporator process and its failure caused the entire system to be shut down, significantly impacting facility operations. This paper describes the activities associated with failure characterization, technical decision making/planning for repair by welding, logistical challenges associated with performing work in a radiologically controlled zone, performing the repair, and administrative considerations related to ASME code requirements.

  17. Enery Efficient Press and Sinter of Titanium Powder for Low-Cost Components in Vehicle Applications

    SciTech Connect

    Thomas Zwitter; Phillip Nash; Xiaoyan Xu; Chadwick Johnson

    2011-03-31

    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

  18. Fluorinated ethylene-propylene: a complementary alternative to PDMS for nanoimprint stamps

    NASA Astrophysics Data System (ADS)

    Greer, Andrew I. M.; Vasiev, Iskandar; Della-Rosa, Benoit; Gadegaard, Nikolaj

    2016-04-01

    Polydimethylsiloxane (PDMS) is used by many for nanoimprint applications due to its affordability, ease of preparation, mechanical flexibility, compatibility with imprint resists and transparency to UV light. However PDMS is notoriously flexible, tacky and permeable to air. Here fluorinated ethylene-propylene (FEP) is considered as a viable and versatile alternative material for nanoimprint stamps. FEP possesses many of the desirable nanoimprint attributes associated with PDMS but crucially also features a range of complementary characteristics, including an order of magnitude more mechanical strength allowing it to handle higher loads than PDMS, an intrinsically non-stick surface and is compatible with oxygen sensitive resists. Unlike elastomeric polymers, FEP is glassy so patterning may be realised via hot embossing. Not only is this a facile and rapid means of physical structuring but it also facilitates combinatorial patterning, providing a versatility beyond that of traditional casting materials. Due to the intrinsically slow creep of FEP both micro- and nanopatterning are successfully performed sequentially. Feature sizes from 45 nm were successfully realised via the hot-embossing method. To further demonstrate the potential of the material, a modified computer numerical control machine is used. It is capable of photo-, nanoimprint- and laser lithography in conjunction with patterned FEP foils. The tool is used to perform pattern transfer into a developmental nanoimprint resist from Micro Resist Technology, mr-NIL210 XP, and Nano SU-8 3005 negative tone photo resist from MicroChem. Ultimately three-tier lithography is performed in unison and advantageous step-and-repeat performance is achieved with fabricated FEP imprint stamps as they demould more compliantly and resist pressure and contamination better than PDMS.

  19. Fluorinated ethylene-propylene: a complementary alternative to PDMS for nanoimprint stamps.

    PubMed

    Greer, Andrew I M; Vasiev, Iskandar; Della-Rosa, Benoit; Gadegaard, Nikolaj

    2016-04-15

    Polydimethylsiloxane (PDMS) is used by many for nanoimprint applications due to its affordability, ease of preparation, mechanical flexibility, compatibility with imprint resists and transparency to UV light. However PDMS is notoriously flexible, tacky and permeable to air. Here fluorinated ethylene-propylene (FEP) is considered as a viable and versatile alternative material for nanoimprint stamps. FEP possesses many of the desirable nanoimprint attributes associated with PDMS but crucially also features a range of complementary characteristics, including an order of magnitude more mechanical strength allowing it to handle higher loads than PDMS, an intrinsically non-stick surface and is compatible with oxygen sensitive resists. Unlike elastomeric polymers, FEP is glassy so patterning may be realised via hot embossing. Not only is this a facile and rapid means of physical structuring but it also facilitates combinatorial patterning, providing a versatility beyond that of traditional casting materials. Due to the intrinsically slow creep of FEP both micro- and nanopatterning are successfully performed sequentially. Feature sizes from 45 nm were successfully realised via the hot-embossing method. To further demonstrate the potential of the material, a modified computer numerical control machine is used. It is capable of photo-, nanoimprint- and laser lithography in conjunction with patterned FEP foils. The tool is used to perform pattern transfer into a developmental nanoimprint resist from Micro Resist Technology, mr-NIL210 XP, and Nano SU-8 3005 negative tone photo resist from MicroChem. Ultimately three-tier lithography is performed in unison and advantageous step-and-repeat performance is achieved with fabricated FEP imprint stamps as they demould more compliantly and resist pressure and contamination better than PDMS. PMID:26938810

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

    NASA Astrophysics Data System (ADS)

    Medeiros, N.; Moreira, L. P.

    2014-08-01

    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 Ψ 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 Ψ, effective plastic strain, pressing load and sample temperature with the instantaneous workpiece height at the entry surface of deformation zone.

  1. DC-STAMP knock-down deregulates cytokine production and T-cell stimulatory capacity of LPS-matured dendritic cells

    PubMed Central

    2011-01-01

    Background Dendritic cells (DCs) are the highly specialized antigen presenting cells of the immune system that play a key role in regulating immune responses. DCs can efficiently initiate immune responses or induce tolerance. Due to this dual function, DCs are studied in the context of immunotherapy for both cancer and autoimmune diseases. Characterization of DC-specific genes, leading to better understanding of DC immunobiology, will help to guide their use in clinical settings. We previously identified DC-STAMP, a multi-membrane spanning protein preferentially expressed by DCs. DC-STAMP resides in the endoplasmic reticulum (ER) of immature DCs and translocates towards the Golgi compartment upon maturation. In this study we knocked down DC-STAMP in mouse bone marrow-derived DCs (mBMDCs) to determine its function. Results We demonstrate that DC-STAMP knock-down mBMDCs secrete less IL-6, IL-12, TNF-α and IL-10 while IL-1 production is enhanced. Moreover, LPS-matured DC-STAMP knock-down mBMDCs show impaired T cell activation potential and induction of Th1 responses in an alloreaction. Conclusions We show that DC-STAMP plays an important role in cytokine production by mBMDCs following LPS exposure. Our results reveal a novel function of DC-STAMP in regulating DC-initiated immune responses. PMID:21978263

  2. Predicting the performance of belt filter presses using the Crown Press for laboratory simulation

    SciTech Connect

    Graham, T.M.

    1999-07-26

    Belt filter presses (BFPs) are among the most commonly used devices to dewater wastewater sludge. The concept used by a BFP to achieve dewatered cake solids is relatively simple; however, replicating this performance in the laboratory in order to predict the performance of a BFP with reasonable reliability has proven to be a challenge. The Crown Press is one tool that has been shown to replicate the performance of anaerobically digested sludge on a BFP. This study used the Crown Press to replicate and predict the performance of waste activated sludge (WAS) from the Mauldin Road wastewater treatment plant on BFPs. Several operational variables, including belt speed, belt tension, polymer type, and polymer dose, were changed on the Crown Press to predict how the changes on the BFP would affect performance. Two polymers were chosen to be tested on the BFPs at Mauldin Road based on Crown Press predictions. The first polymer performed the same as the plant`s current polymer in the lab, and the second performed better (achieved higher final cake solids) than the current polymer. These predictions were borne out in the BFP tests, showing that the Crown Press predictions were accurate. The Crown Press predictions were also compared to the predictions made by the capillary suction time (CST) and specific resistance to filtration (SRF) tests. The Crown Press provided more information regarding the affect of polymer type and dose on cake solids than either CST or SRF. The Crown Press was shown to be a viable tool to assess potential changes in BFP performance with WAS when operational variables change.

  3. [Dying with cancer: Hollywood lessons].

    PubMed

    Niemeyer, Fernanda; Kruse, Maria Henriqueta Luce

    2013-12-01

    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

  4. Activity-Based Costing in the After Press Services Industry

    NASA Astrophysics Data System (ADS)

    Shevasuthisilp, Suntichai; Punsathitwong, Kosum

    2009-10-01

    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.

  5. Guide for extrusion dies eliminates straightening operation

    NASA Technical Reports Server (NTRS)

    Gyorgak, C. A.; Hoover, R. J.

    1964-01-01

    To prevent distortion of extruded metal, a guidance assembly is aligned with the die. As the metal emerges from the extrusion dies, it passes directly into the receiver and straightening tube system, and the completed extrusion is withdrawn.

  6. A Journalist's Guide to the Free Press.

    ERIC Educational Resources Information Center

    Ingelhart, Louis

    1996-01-01

    Summarizes the content of the federal constitution and various state constitutions regarding freedom of the press. Examines certain borderline issues, including actions and expressions, pornography, defamation, libel, and copyrighted material. States that regulation of unprotected material must be reasonable, specific, and clear. Discusses what…

  7. Press Site Auditorium dedicated to John Holliman

    NASA Technical Reports Server (NTRS)

    1999-01-01

    A ceremony dedicated the KSC Press Site auditorium as the John Holliman Auditorium to honor the correspondent for his enthusiastic, dedicated coverage of America's space program. The auditorium was built in 1980 and has been the focal point for new coverage of Space Shuttle launches. The ceremony followed the 94th launch of a Space Shuttle, on mission STS-96, earlier this morning.

  8. Neo-Lysenkoism, IQ, and the Press.

    ERIC Educational Resources Information Center

    Davis, Bernard D.

    1983-01-01

    In "The Mismeasure of Man," a history of efforts to measure intelligence, Stephen Jay Gould is highly selective in his account, and tests for scientific truth by the standards of his own social and political convictions. Specifically, to combat racist approaches to theories of intelligence, Gould presses for equal and opposite bias. (Author/GC)

  9. Be Prepared to Meet the Press.

    ERIC Educational Resources Information Center

    Pedro, Nick J.

    1989-01-01

    Offers school administrators tips for sharpening their public relations skills. Educators interviewed by the press should do research beforehand, answer practice questions, listen before speaking, admit ignorance, make every statement count, be circumspect, ask for a review copy, attend to follow-up, keep a clipping file, and maintain open…

  10. Press kit kicks off new branding.

    PubMed

    Rees, Tom

    2004-01-01

    A smartly produced press kit resulted in unprecedented news coverage when Denver's Porter Adventist Hospital recently unveiled plans for an extensive 80 million dollars redevelopment. A news conference was held to announce this plan, along with the opening of the hospital's new emergency department. The overall effort is part of the new branding strategy of the 75-year-old hospital.

  11. Communications in Agriculture: The American Farm Press.

    ERIC Educational Resources Information Center

    Evans, James F.; Salcedo, Rodolfo N.

    This book studies communications in agriculture, focusing on the American farm press. As defined here, a commercial farm periodical is directed to farmers and supports itself through the sale of subscriptions or advertising. It includes local as well as regional and national periodicals. A 90-year analysis, from 1880 to 1970, was chosen because…

  12. STS-9 Spacelab 1 Press Kit

    NASA Technical Reports Server (NTRS)

    1983-01-01

    Press information on the STS-9/SPACELAB 1 mission is provided. Launch preparations, launch window, flight objectives, experiments, life sciences baseline data collection, SPACELAB 1 payload operations and control crew and specialists, and tracking and data management are among the topics explained.

  13. Student Press Corps (Use the News).

    ERIC Educational Resources Information Center

    Mahler, Susan

    1989-01-01

    Describes the Student Press Corps, a program in which high school students submit weekly columns concerning local high school events for editing and possible publication by the local newspaper. Reports that training sessions have been fully enrolled for two years and that all participants are extremely positive about the program. (RS)

  14. 7 CFR 58.421 - Press.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 3 2013-01-01 2013-01-01 false Press. 58.421 Section 58.421 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (CONTINUED) REGULATIONS AND STANDARDS UNDER THE AGRICULTURAL MARKETING ACT OF 1946 AND THE...

  15. The Press, Privacy, and Community Mores.

    ERIC Educational Resources Information Center

    Glasser, Theodore L.

    Because of judicial indifference and legislative inaction, the conflict between the right of privacy and the freedom of the press is no closer to a resolution than it was a century ago. William Prosser's reduction of the common law of privacy into four separate torts has not solved the problem. The concept of "newsworthiness" has not been helpful…

  16. Freedom of the Press: Foundations and Attitudes.

    ERIC Educational Resources Information Center

    Gibson, Martin Leroy, Jr.

    This study reports the results of a national survey of the attitudes of five demographic groups toward freedom of the press. The groups are newsmen, state legislators, high school teachers, high school students, and the general public. The survey is broken into two parts, the first dealing with general principles (e.g., support for a law against…

  17. Free Press in a Constitutional Democracy

    ERIC Educational Resources Information Center

    Lucianek, Christine

    2014-01-01

    This article describes a lesson in which students will examine several views expressed by the founders to understand the context for including freedom of the press in the First Amendment. Students will be asked to think about the role that the news media and the need to be an informed citizen continue to play in our democracy. Students will…

  18. When International Press Rights "Are" the News

    ERIC Educational Resources Information Center

    Freedman, Eric

    2006-01-01

    In many countries, reporters and editors face criminal prosecution, censorship, self-censorship, exile, tax audits, loss of broadcast and publication licenses, loss of jobs, assault, and even assassination based on how they practice their profession. Press rights and human rights advocacy groups try to draw media and official attention to those…

  19. 7 CFR 58.421 - Press.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (CONTINUED) REGULATIONS AND STANDARDS UNDER THE AGRICULTURAL... maintained in good repair and in a sanitary condition. Single service press cloths shall be used only once....

  20. The Press and the Bolivian National Revolution.

    ERIC Educational Resources Information Center

    Knudson, Jerry W.

    1973-01-01

    Social revolutions, which frequently use the press as a propaganda weapon, have been rare in Latin America despite the striking social inequalities of the region. Only three classic socioeconomic revolutions have unfolded in the hemisphere--in Mexico in 1910, in Bolivia in 1952, and in Cuba in 1959. Bolivia attempted to effect radical reforms…

  1. The Moral Universes of Libertarian Press Theory.

    ERIC Educational Resources Information Center

    Wuliger, Gregory T.

    1991-01-01

    Uses Kantian logic to analyze the statement of Libertarian press theory "Truth beats falsehood in a free marketplace of ideas" as a definition, an observation, and a universal truth. Notes three corresponding moral universes, with differing ethical obligations. Discusses strengths and weaknesses of each. Cautions media ethics analysts against…

  2. An Introduction to Bibliographical Press Work.

    ERIC Educational Resources Information Center

    Richardson, John V., Jr.

    This guide to the literature of bibliographical press work is comprised of brief introductory notes on the field and this bibliography, followed by citations listed in seven categories: (1) book production, (2) handmade paper, (3) printer's ink, (4) type design, (5) book design, (6) hand printing, and (7) hand bookbinding. Introductory as well as…

  3. Law of the Student Press. Second Edition.

    ERIC Educational Resources Information Center

    Student Press Law Center, Washington, DC.

    Noting dramatic changes in First Amendment protections for high school students and new legal issues facing college newspaper editors, this book describes in detail the legal rights and responsibilities of both the high school and college press. While the book is extensively footnoted, it intentionally avoids "legal-ese" and "brings law to life"…

  4. Killing, letting die and euthanasia.

    PubMed

    Husak, D N

    1979-12-01

    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 rather than as instances of letting die depends in part on a prior moral assessment of the case. Hence is it trivially rather than substantively true that the distinction has moral significance. But even if a morally neutral (ie non-question begging) distinction could be drawn, its application to the euthanasia controversy is problematic. I illustrate the difficulties of employing this distinction to reach moral conclusions by critically discussing Philippa Foot's recent treatment of euthanasia. I conclude that even if an act of euthanasia is an instance of killing, and there exists a prima facie moral duty not to kill, and no more stringent duty overrides this duty, one still cannot determine such an act to be morally impermissible.

  5. Accuracy of Press Reports in Astronomy

    NASA Astrophysics Data System (ADS)

    Schaefer, B. E.; Hurley, K.; Nemiroff, R. J.; Branch, D.; Perlmutter, S.; Schaefer, M. W.; Consolmagno, G. J.; McSween, H.; Strom, R.

    1999-12-01

    Most Americans learn about modern science from press reports, while such articles have a bad reputation among scientists. We have performed a study of 403 news articles on three topics (gamma-ray astronomy, supernovae, and Mars) to quantitatively answer the questions 'How accurate are press reports of astronomy?' and 'What fraction of the basic science claims in the press are correct?' We have taken all articles on the topics from five news sources (UPI, NYT, S&T, SN, and 5 newspapers) for one decade (1987-1996). All articles were evaluated for a variety of errors, ranging from the fundamental to the trivial. For 'trivial' errors, S&T and SN were virtually perfect while the various newspapers averaged roughly one trivial error every two articles. For meaningful errors, we found that none of our 403 articles significantly mislead the reader or misrepresented the science. So a major result of our study is that reporters should be rehabilitated into the good graces of astronomers, since they are actually doing a good job. For our second question, we rated each story with the probability that its basic new science claim is correct. We found that the average probability over all stories is 70%, regardless of source, topic, importance, or quoted pundit. How do we reconcile our findings that the press does not make significant errors yet the basic science presented is 30% wrong? The reason is that the nature of news reporting is to present front-line science and the nature of front-line science is that reliable conclusions have not yet been reached. So a second major result of our study is to make the distinction between textbook science (with reliability near 100%) and front-line science which you read in the press (with reliability near 70%).

  6. Jewish tradition in death and dying.

    PubMed

    Ross, H M

    1998-10-01

    Death is often a spiritually difficult time for the dying and their families. Judaism approaches dying with some unique views that can differ from other religious traditions. Through an understanding of Jewish tradition, nurses can ease the dying process for Jewish patients and their families.

  7. Contoured Orifice for Silicon-Ribbon Die

    NASA Technical Reports Server (NTRS)

    Mackintosh, B. H.

    1985-01-01

    Die configuration encourages purity and stable growth. Contour of die orifice changes near ribbon edges. As result, silicon ribbon has nearly constant width and little carbon contamination. Die part of furnace being developed to produce high-quality, low-cost material for solar cells.

  8. Fluoride-added Pr-Fe-B die-upset magnets with increased electrical resistivity

    SciTech Connect

    Marinescu, M.; Liu, J. F.; Gabay, A. M.; Hadjipanayis, G. C.

    2009-04-01

    This work reports the effect of NdF{sub 3}, DyF{sub 3}, and CaF{sub 2} additions on the electrical resistivity and magnetic properties of Pr-Fe-B hot-pressed and die-upset permanent magnets. Composite magnets were synthesized from ground Pr{sub 14.5}Fe{sub 79.5}B{sub 6} melt-spun ribbons blended with 5 wt % of fluoride fine powders and consolidated by hot pressing at 650 deg. C, followed by die upsetting at 800 deg. C. While CaF{sub 2} is stable at the processing temperatures, the rare earth atoms separate from their fluorides to a certain degree with the assistance of the Pr-rich phase from the magnet matrix. Addition of fluorides increased the resistivity of the hot-pressed specimens by more than 200%. The resistivity of the die-upset specimens measured perpendicularly to the direction of the applied pressure, which is also the direction of magnetization, is, however, only slightly increased compared to the magnet counterparts without the fluoride addition. The intrinsic coercivity of Pr{sub 14.5}Fe{sub 79.5}B{sub 6} die-upset specimens is increased from 14.5 kOe to 15.3, 17.1, and 17.7 kOe for the addition of CaF{sub 2}, DyF{sub 3}, and NdF{sub 3}, respectively, at a slight expense of the residual flux.

  9. Studies of OC-STAMP in Osteoclast Fusion: A New Knockout Mouse Model, Rescue of Cell Fusion, and Transmembrane Topology

    PubMed Central

    Reyes-Gutierrez, Pablo; Jia, Hong; Odgren, Paul E.; Donahue, Leah Rae; Birnbaum, Mark J.; Odgren, Paul R.

    2015-01-01

    The fusion of monocyte/macrophage lineage cells into fully active, multinucleated, bone resorbing osteoclasts is a complex cell biological phenomenon that utilizes specialized proteins. OC-STAMP, a multi-pass transmembrane protein, has been shown to be required for pre-osteoclast fusion and for optimal bone resorption activity. A previously reported knockout mouse model had only mononuclear osteoclasts with markedly reduced resorption activity in vitro, but with paradoxically normal skeletal micro-CT parameters. To further explore this and related questions, we used mouse ES cells carrying a gene trap allele to generate a second OC-STAMP null mouse strain. Bone histology showed overall normal bone form with large numbers of TRAP-positive, mononuclear osteoclasts. Micro-CT parameters were not significantly different between knockout and wild type mice at 2 or 6 weeks old. At 6 weeks, metaphyseal TRAP-positive areas were lower and mean size of the areas were smaller in knockout femora, but bone turnover markers in serum were normal. Bone marrow mononuclear cells became TRAP-positive when cultured with CSF-1 and RANKL, but they did not fuse. Expression levels of other osteoclast markers, such as cathepsin K, carbonic anhydrase II, and NFATc1, were not significantly different compared to wild type. Actin rings were present, but small, and pit assays showed a 3.5-fold decrease in area resorbed. Restoring OC-STAMP in knockout cells by lentiviral transduction rescued fusion and resorption. N- and C-termini of OC-STAMP were intracellular, and a predicted glycosylation site was shown to be utilized and to lie on an extracellular loop. The site is conserved in all terrestrial vertebrates and appears to be required for protein stability, but not for fusion. Based on this and other results, we present a topological model of OC-STAMP as a 6-transmembrane domain protein. We also contrast the osteoclast-specific roles of OC- and DC-STAMP with more generalized cell fusion

  10. A DYING STAR IN GLOBULAR CLUSTER

    NASA Technical Reports Server (NTRS)

    2002-01-01

    A DYING STAR IN GLOBULAR CLUSTER M15 The globular cluster Messier 15 is shown in this color image obtained with the NASA Hubble Space Telescope's Wide Field Planetary Camera 2 (WFPC2). Lying some 40,000 light-years from Earth in the direction of the constellation Pegasus, M15 is one of nearly 150 known globular clusters that form a vast halo surrounding our Milky Way galaxy. Each of these clusters is a spherical association of hundreds of thousands of ancient stars. The image, prepared by the Hubble Heritage team, attempts to show the stars in M15 in their true colors. The brightest cluster stars are red giants, with an orange color due to surface temperatures lower than our Sun's. Most of the fainter stars are hotter, giving them a bluish-white color. If we lived in the core of M15, our sky would blaze with tens of thousands of brilliant stars both day and night! Nestled among the myriads of stars visible in the Hubble image is an astronomical oddity. The pinkish object to the upper left of the cluster's core is a gas cloud surrounding a dying star. Known as Kuestner 648, this was the first planetary nebula to be identified in a globular cluster. In 1928, F. G. Pease, working at the 100-inch telescope of California's Mount Wilson Observatory, photographed the spectrum of K 648 and discovered the telltale bright emission of a nebular gas cloud rather than a normal star. In the ensuing 70 years, only three more planetary nebulae have been discovered in globular clusters. The stars in M15 and other globular clusters are estimated to be about 12 billion years old. They were among the first generations of stars to form in the Milky Way. Our Sun, by comparison, is a youthful 4.6 billion years old. As a star like the Sun ages, it exhausts the hydrogen that fuels its nuclear fusion, and increases in size to become a red giant. Then it ejects its outer layers into space, producing a planetary nebula. The remnant star at the center of the nebula gradually dies away as a

  11. 9. INTERIOR VIEW OF EYE PRESS AREA; TO LEFT IS ...

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

    9. INTERIOR VIEW OF EYE PRESS AREA; TO LEFT IS A TWO-BAY SLOTTED TYPE FURNACE, TO CENTER IS EYE PRESS, TO RIGHT IS CURCULAR SAW - Warwood Tool Company, Foot of Nineteenth Street, Wheeling, Ohio County, WV

  12. Students Deserve Broad View in Advertising-Press Debate.

    ERIC Educational Resources Information Center

    Lynn, Jerry R.

    1979-01-01

    Argues that the advertising industry's influence on the press is primarily indirect and that journalism educators should divert student attention from the negative aspects of advertising's role in the press. (RL)

  13. Method for hot pressing beryllium oxide articles

    DOEpatents

    Ballard, Ambrose H.; Godfrey, Jr., Thomas G.; Mowery, Erb H.

    1988-01-01

    The hot pressing of beryllium oxide powder into high density compacts with little or no density gradients is achieved by employing a homogeneous blend of beryllium oxide powder with a lithium oxide sintering agent. The lithium oxide sintering agent is uniformly dispersed throughout the beryllium oxide powder by mixing lithium hydroxide in an aqueous solution with beryllium oxide powder. The lithium hydroxide is converted in situ to lithium carbonate by contacting or flooding the beryllium oxide-lithium hydroxide blend with a stream of carbon dioxide. The lithium carbonate is converted to lithium oxide while remaining fixed to the beryllium oxide particles during the hot pressing step to assure uniform density throughout the compact.

  14. Glass Coats For Hot Isostatic Pressing

    NASA Technical Reports Server (NTRS)

    Ecer, Gunes M.

    1989-01-01

    Surface voids sealed from pressurizing gas. Coating technique enables healing of surface defects by hot isostatic pressing (HIP). Internal pores readily closed by HIP, but surface voids like cracks and pores in contact with pressurizing gas not healed. Applied to casting or weldment as thick slurry of two glass powders: one melts at temperature slightly lower than used for HIP, and another melts at higher temperature. For example, powder is glass of 75 percent SiO2 and 25 percent Na2O, while other powder SiO2. Liquid component of slurry fugitive organic binder; for example, mixture of cellulose acetate and acetone. Easy to apply, separates voids from surrounding gas, would not react with metal part under treatment, and easy to remove after pressing.

  15. Reducing VOC Press Emission from OSB Manufacturing

    SciTech Connect

    Dr. Gary D. McGinnis; Laura S. WIlliams; Amy E. Monte; Jagdish Rughani: Brett A. Niemi; Thomas M. Flicker

    2001-12-31

    Current regulations require industry to meet air emission standards with regard to particulates, volatile organic compounds (VOCs), hazardous air pollutants (HAPs) and other gases. One of many industries that will be affected by the new regulations is the wood composites industry. This industry generates VOCs, HAPs, and particulates mainly during the drying and pressing of wood. Current air treatment technologies for the industry are expensive to install and operate. As regulations become more stringent, treatment technologies will need to become more efficient and cost effective. The overall objective of this study is to evaluate the use of process conditions and chemical additives to reduce VOC/HAPs in air emitted from presses and dryers during the production of oriented strand board.

  16. HOT PRESSING TO FORM CANNED URANIUM SLUGS

    DOEpatents

    Kingston, W.E.; Roboff, S.B.

    1961-07-25

    A method of making compacts and clad slugs from powdered uranium is disclosed. Powdered uranium is introduced into a die and subjected to pressures of 30 to 100 tsi while maintaining a temperature within the range of 450 to 660 deg C. (auth)

  17. Hot Pressing to Form Canned Uranium Slugs

    DOEpatents

    Roboff, S. B.; Kingston, W. E.

    1961-07-25

    A method of making compacts and cladded slugs from powdered uranium is described. The powdered uranium is introduced into a die and subjected to pressures of 30 to 100 tsi while maintaining a temperature within the range of 450 to 660 deg C.

  18. Laser-Assisted Sheet Metal Working by the Integration of Scanner System Technology into a Progressive Die

    NASA Astrophysics Data System (ADS)

    Brecher, Christian; Emonts, Michael; Eckert, Markus

    Within the sheet metal working industry the demand for thinner sheet materials with very high strength is growing due to the increasing importance for saving energy and responsible usage of natural resources. High strength and low ductility restrict application of state-of-the-art technology to shear, bend or deep draw parts with the needed complexity and quality. The Fraunhofer IPT has developed a "hy-PRESS" system to combine laser-assisted preheating and conventional punching to a hybrid technology in a progressive die, which allows to shear, bend and deep draw high strength materials with a high quality and complexity in progressive dies.

  19. Through the Looking Glass: Press Responses to Genocide.

    ERIC Educational Resources Information Center

    Lipstadt, Deborah E.

    1991-01-01

    Examines press coverage of the Holocaust to analyze the response of the United States and the world to the Jewish extermination. Compares this coverage to earlier press responses to the Armenian genocide and Ukraine famines. Argues the press was unwilling to face the Holocaust's magnitude. Urges teachers to teach about the Holocaust and similar…

  20. Graphic Arts: The Press and Finishing Processes. Third Edition.

    ERIC Educational Resources Information Center

    Crummett, Dan

    This document contains teacher and student materials for a course in graphic arts concentrating on printing presses and the finishing process for publications. Seven units of instruction cover the following topics: (1) offset press systems; (2) offset inks and dampening chemistry; (3) offset press operating procedures; (4) preventive maintenance…