167 resources related to Melt processing
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The Pulsed Power Conference is held on a biannual basis and serves as the principal forum forthe exchange of information on pulsed power technology and engineering.
The ACC is the annual conference of the American Automatic Control Council (AACC, the U.S. national member organization of the International Federation for Automatic Control (IFAC)). The ACC is internationally recognized as a premier scientific and engineering conference dedicated to the advancement of control theory and practice. The ACC brings together an international community of researchers and practitioners to discuss the latest findings in automatic control. The 2020 ACC technical program will
ECTC is the premier international conference sponsored by the IEEE Components, Packaging and Manufacturing Society. ECTC paper comprise a wide spectrum of topics, including 3D packaging, electronic components, materials, assembly, interconnections, device and system packaging, optoelectronics, reliability, and simulation.
IEEE International Conference on Plasma Science (ICOPS) is an annual conference coordinated by the Plasma Science and Application Committee (PSAC) of the IEEE Nuclear & Plasma Sciences Society.
This conference provides an exchange of technical topics in the fields of Solid State Modulators and Switches, Breakdown and Insulation, Compact Pulsed Power Systems, High Voltage Design, High Power Microwaves, Biological Applications, Analytical Methods and Modeling, and Accelerators.
Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission
Telephone, telegraphy, facsimile, and point-to-point television, by electromagnetic propagation, including radio; wire; aerial, underground, coaxial, and submarine cables; waveguides, communication satellites, and lasers; in marine, aeronautical, space and fixed station services; repeaters, radio relaying, signal storage, and regeneration; telecommunication error detection and correction; multiplexing and carrier techniques; communication switching systems; data communications; and communication theory. In addition to the above, ...
Component parts, hybrid microelectronics, materials, packaging techniques, and manufacturing technology.
Methods, algorithms, and human-machine interfaces for physical and logical design, including: planning, synthesis, partitioning, modeling, simulation, layout, verification, testing, and documentation of integrated-circuit and systems designs of all complexities. Practical applications of aids resulting in producible analog, digital, optical, or microwave integrated circuits are emphasized.
Serves as a compendium for papers on the technological advances in control engineering and as an archival publication which will bridge the gap between theory and practice. Papers will highlight the latest knowledge, exploratory developments, and practical applications in all aspects of the technology needed to implement control systems from analysis and design through simulation and hardware.
IEEE P844.4/C293.4/D1, November 2018, 2019
2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD), 2016
The scintillation radiation detection community is on the cusp of a major breakthrough with the potential deployment of Europium-activated Strontium Iodide (SrI2:Eu) detectors for medical imaging and homeland security applications. Compared to the traditional scintillators (such as NaI), SrI2 provides much better energy resolution and light output. The crystal growth of SrI2:Eu has been impaired for a long time due ...
IEEE Transactions on Applied Superconductivity, 1997
The critical current density (J/sub c/) is very sensitive to the maximum temperature (T/sub m/) used to melt process Ag-sheathed Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub x/ tapes. In this study we have found that the optimum T/sub m/ was 894-896/spl deg/C and that variations of /spl plusmn/2/spl deg/C strongly decreased J/sub c/. We found that the density of the oxide core ...
IEEE Transactions on Applied Superconductivity, 2011
In this study, we report the effect of cooling from the peak temperature reached during partial melt processing on the critical current for a Bi2212/Ag wire. A single-stage cooling approach is compared to two-stage cooling. For two-stage cooling, the first stage cooling rate and the cooling rate transition temperature were varied to investigate the effects of undercooling on the solidification ...
2005 11th International Scientific and Practical Conference of Students, Post-graduates and Young Scientists - Modern Technique and Technologies, 2005
According to (A.A. Tatarnikov and L.V. Burtelov, 2002) processing rubber mixtures in spite of their belonging to pseudoplastic mediums differs markedly from polymer melt processing. This difference lies in that the length of threaded part of the worm may be divided into three zones: pressure zone, buffer zone and supply zone. In pressure zone the worm is completely filled with ...
Introduction to Chip Multiprocessor Architecture
ICASSP 2011 Trends in Machine Learning for Signal Processing
ICASSP 2010 - New Signal Processing Application Areas
Hamid R Tizhoosh - Fuzzy Image Processing
ICASSP 2011 Trends in Design and Implementation of Signal Processing Systems
Signal Processing and Machine Learning
Alan S. Willsky - IEEE Jack S. Kilby Signal Processing Medal, 2019 IEEE Honors Ceremony
IMS 2011 Microapps - Quickwave Electromagnetic Software with CAD Input and GPU Processing
ICASSP 2011 Trends in Multimedia Signal Processing
2014 Jack S. Kilby Signal Processing Medal
Signal Processing on Manifolds
IMS 2012 Microapps - System Simulation Featuring Signal Processing Blocks
AuthorLab: Information on the IEEE Article Processing Charges
Neuromorphic Mixed-Signal Circuitry for Asynchronous Pulse Processing Neuromorphic Mixed-Signal Circuitry for Asynchronous Pulse Processing - Peter Petre: 2016 International Conference on Rebooting Computing
Louis Scharf receives the IEEE Jack S. Kilby Signal Processing Medal - Honors Ceremony 2016
2012 IEEE Honors - Jack S. Kilby Signal Processing Medal
Honors 2020: Ramalingam Chellappa Wins the Jack S. Kilby Signal Processing Medal
2011 IEEE Jack S. Kilby Signal Processing Medal - Ingrid Daubechies
Special Evening Panel Discussion: AI, Cognitive Information Processing, and Rebooting Computing - IEEE Rebooting Computing 2017
The scintillation radiation detection community is on the cusp of a major breakthrough with the potential deployment of Europium-activated Strontium Iodide (SrI2:Eu) detectors for medical imaging and homeland security applications. Compared to the traditional scintillators (such as NaI), SrI2 provides much better energy resolution and light output. The crystal growth of SrI2:Eu has been impaired for a long time due to cracking problems, which makes it highly unreliable and nonreproducible. This significantly increases the cost of the material which in turn impedes wide-scale deployment and limits its advantages over other scintillators. In this paper, we demonstrate a technique of growing crack-free SrI2:Eu crystals by monitoring the stoichiometry of the melt atmosphere during processing and crystal growth. Using the feedback information from the in situ monitoring technique, the stoichiometry of the melt was corrected and multiple crack-free SrI2:Eu crystals of diameters 1.5 inches were repeatedly grown using Bridgman configuration with no visible inclusions, bubbles or defects whatsoever.
The critical current density (J/sub c/) is very sensitive to the maximum temperature (T/sub m/) used to melt process Ag-sheathed Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub x/ tapes. In this study we have found that the optimum T/sub m/ was 894-896/spl deg/C and that variations of /spl plusmn/2/spl deg/C strongly decreased J/sub c/. We found that the density of the oxide core and its Vickers hardness displayed a maximum in tapes that had been processed at the optimum T/sub m/. In addition, the room temperature electrical resistivity of the core was lowest for the tapes with the maximum J/sub c/ at 4.2 K. A formation of macropores was observed in tapes processed at T/sub m/ above the optimum one. MO imaging and SEM observation showed that the magnetic flux penetrates more easily into tape areas containing macropores. Together these observations show that T/sub m/ exerts a very powerful effect on the macroscopic density of the oxide core, this controlling the connectivity and the effective cross-section of the oxide core. Thus J/sub c/ depends on T/sub m/ primarily because the effective cross-section of the core depends on T/sub m/.
In this study, we report the effect of cooling from the peak temperature reached during partial melt processing on the critical current for a Bi2212/Ag wire. A single-stage cooling approach is compared to two-stage cooling. For two-stage cooling, the first stage cooling rate and the cooling rate transition temperature were varied to investigate the effects of undercooling on the solidification behavior of the 2212 phase. Two-stage cooling results in higher I<sub>c</sub> compared to single-stage cooling, and the cooling rate transition temperature was found to have a greater effect on I<sub>c</sub> than the initial cooling rate.
According to (A.A. Tatarnikov and L.V. Burtelov, 2002) processing rubber mixtures in spite of their belonging to pseudoplastic mediums differs markedly from polymer melt processing. This difference lies in that the length of threaded part of the worm may be divided into three zones: pressure zone, buffer zone and supply zone. In pressure zone the worm is completely filled with the processed material. Supply zone is determined by geometrical dimensions of the funnel for material supply. Buffer zone is a transition zone between supply and pressure zones. Buffer zone changes its length depending on the length of pressure zone. Due to the fact that some part of worm channel may be filled partially with the processed material (the length of buffer zone) a single-worm machine Q<sub>m</sub> productivity does not depend on material pressure in the head P<sub>h</sub> (A.A. Tatarnikov and L.V. Burtelov, 2002).
Bi-2212 thick films have been prepared by full and partial melt processing to investigate the suitability of MgO substrates in polycrystalline, single crystal and buffer layer formats. There is a marked difference in microstructural and electrical properties between thick films on polycrystalline and single crystal MgO substrates. This is attributed to the degree of interaction between the liquid phase and substrate during melting. The thickness of films on single crystal MgO substrates is an important consideration in the optimization of the superconducting transport properties.
The length of fiber has strong effect on mechanical strength of fiber reinforced polymer nanocomposites. Previous work has shown that the length of multi-walled carbon nanotubes are reduced during melt mixing process with polyamide 6, 6. In this work, MWCNT/polycarbonate (PC) composites were prepared with four types of MWCNTs by injection molding. The severe melt mixing condition for dispersion of MWCNTs in the polymer matrix resulted in length reduction of MWCNTs. The microstructure and morphological properties of MWCNTs that influenced the degree of breakage and length reduction were experimentally investigated.
Textured YBa/sub 2/Cu/sub 3/O/sub 7-x/ (YBCO) thick films were fabricated in the green state by casting particulate-based suspensions in an applied magnetic field (7 T) at ambient temperature. These films, along with nonaligned films, were fired to various temperatures above the peritectic temperature ( approximately= 1020 degrees C) to evaluate the effects of partial melt processing on their microstructural development and performance properties. The degree of domain alignment in the fired films was measured by X-ray diffraction (XRD) analysis. This showed that the aligned films had a high degree of c-axis texture. Examination by scanning electron microscopy (SEM) revealed distinct differences in both the film density and texture development between aligned and nonaligned films. The magnetic properties of each film were measured at 5 K using a superconducting quantum interference device (SQUID) magnetometer (5.5 T maximum field). These measurements indicated that a high degree of anisotropy was present only in the partial melt processed aligned YBCO films.<<ETX>>
The Bi-2223 performance could be significantly improved by melt processing. However, it is a very difficult task, partly due to the volatility of Pb, its main dopant. On the other hand, it is also a hard task to obtain high Pb-free 2223 amounts, even by sinterization using a primary phase field composition (Bi/sub 2.5/Sr/sub 1.9/Ca/sub 2.1/Cu/sub 3/O/sub x/). In the present work, we investigate the sinterization of Pb-free 2223 in the presence of appreciable liquid fractions. The samples were analyzed by XRD, SEM/EDS and Magnetic Susceptibility. The results show significant Pb-free 2223 amounts after sintering at temperatures close to the melting. Such investigation represents an additional step toward the elucidation of the Pb-free 2223/melt equilibrium.
Large domain YBCO are fabricated by using a melt processing technique for magnetic levitation applications. A Nd/sub 1+x/Ba/sub 2-x/Cu/sub 3/O/sub y/, seed is used to initiate grain growth and to control the orientation of YBCO grains. Samples as large as 50 mm diameter have been fabricated by utilizing this method. Microstructural studies reveals two distinct regions in these levitators due to different growth mechanisms along the a/b and c axes. Some initial result on the mass production of these; levitators are also reported.
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