Results 261 to 270 of about 386,415 (303)
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Applied Physics Letters, 1994
The structure of a 20 Å thin Co layer embedded between Fe layers grown with molecular beam epitaxy on MgO is determined with ion beam channeling. From the position and the ratio of the widths of the angular yield profiles for different crystallographic directions, we show that Co is forced in the metastable body centered cubic structure.
J. Dekoster +4 more
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The structure of a 20 Å thin Co layer embedded between Fe layers grown with molecular beam epitaxy on MgO is determined with ion beam channeling. From the position and the ratio of the widths of the angular yield profiles for different crystallographic directions, we show that Co is forced in the metastable body centered cubic structure.
J. Dekoster +4 more
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International Journal of Automotive Technology, 2020
At the conceptual design stage, the cross-sectional shapes of thin-walled beams (TWBs) need to be optimized to improve the performance of automobile structure. Therefore, this paper innovatively proposes a cross-sectional shape optimization method to acquire a low cost, high stiffness, manufacturable and lightweight TWB. Meanwhile, the stamping cost of
Yanhua Ma +3 more
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At the conceptual design stage, the cross-sectional shapes of thin-walled beams (TWBs) need to be optimized to improve the performance of automobile structure. Therefore, this paper innovatively proposes a cross-sectional shape optimization method to acquire a low cost, high stiffness, manufacturable and lightweight TWB. Meanwhile, the stamping cost of
Yanhua Ma +3 more
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A Study on Development of Body Structure Using Hydroforming of a Thin-Walled UHSS Tube
SAE Technical Paper Series, 2013<div class="section abstract"><div class="htmlview paragraph">Hydroforming process is an emerging manufacturing technology which allows engineers to use continuous closed section without flange for spot weld in a given package envelope.
Munsoo Cha, Cheol-Ung Kim
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Japanese Journal of Applied Physics, 2006
Thin-film transistors (TFTs) with Schottky source/drain (S/D) structures were fabricated using NiSi and laser-annealed polycrystalline silicon (poly-Si) as Schottky barrier metals and active layers, respectively. The whole fabrication process was performed at low temperatures (
Taizoh Sadoh +5 more
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Thin-film transistors (TFTs) with Schottky source/drain (S/D) structures were fabricated using NiSi and laser-annealed polycrystalline silicon (poly-Si) as Schottky barrier metals and active layers, respectively. The whole fabrication process was performed at low temperatures (
Taizoh Sadoh +5 more
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International Journal for Numerical Methods in Engineering, 2019
SummaryThis article deals with fast transient phenomena involving fluids and structures undergoing large displacements and rotations, associated with nonlinear local behavior, such as plasticity, damage, and failure. A new approach is proposed to handle the interaction between a structure and the compressible fluid it is immersed into.
O. Jamond, A. Beccantini
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SummaryThis article deals with fast transient phenomena involving fluids and structures undergoing large displacements and rotations, associated with nonlinear local behavior, such as plasticity, damage, and failure. A new approach is proposed to handle the interaction between a structure and the compressible fluid it is immersed into.
O. Jamond, A. Beccantini
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IEEE Electron Device Letters, 2004
In this letter, we developed a new self-aligned Schottky barrier source and ohmic body contact (SSOB) method that can effectively suppress the floating-body effect in poly-Si thin-film transistors (TFTs). Experimental results show that the SSOB-TFTs give higher output resistance, less threshold voltage variation, improved subthreshold characteristics ...
P.-Y. Kuo, T.-S. Chao, T.-F. Lei
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In this letter, we developed a new self-aligned Schottky barrier source and ohmic body contact (SSOB) method that can effectively suppress the floating-body effect in poly-Si thin-film transistors (TFTs). Experimental results show that the SSOB-TFTs give higher output resistance, less threshold voltage variation, improved subthreshold characteristics ...
P.-Y. Kuo, T.-S. Chao, T.-F. Lei
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KSME International Journal, 2003
The spot welded sections of automobiles such as the hat and double hat section members, absorb the most of the energy during the front-end collision. The purpose of this study was to analyze the collapse characteristics of spot welded section members with respect to the pitch of spot welds on flanges, through impact experiments and computation for para-
Cheon Seok Cha +4 more
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The spot welded sections of automobiles such as the hat and double hat section members, absorb the most of the energy during the front-end collision. The purpose of this study was to analyze the collapse characteristics of spot welded section members with respect to the pitch of spot welds on flanges, through impact experiments and computation for para-
Cheon Seok Cha +4 more
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A Lightweight Automobile Body Concept Featuring Ultra-Large, Thin-Wall Structural Magnesium Castings
2016This paper describes a lightweight automobile body concept utilizing a hybrid materials approach with emphasis on a magnesium and aluminum structure to support a high fuel-efficiency vehicle project. This approach resulted in a more than 40% weight reduction over a conventional steel body-in-white while achieving significantly improved staictural ...
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Evolution of Large-Scale Structures in the Wake of Sharp-Edge Thin Flat Bodies
2016This thesis describes computational fluid dynamic study of the wake behind thin flat plates at Reynolds numbers large enough for the formation of energetic structures and turbulence. The dynamically rich behavior of unsteady turbulent wake of bluff bodies consists of energetic and large-scale structures generated through flow instabilities, which have ...
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2020
Soft materials, which deform under an electrical stimulation pose exciting new options for a technologically new generation of load bearing mechanical devices such as soft robots, assistant devices or solid state aircrafts. Promising candidates for such soft, smart materials are dielectric elastomers (DEs), a special type of electroactive polymers ...
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Soft materials, which deform under an electrical stimulation pose exciting new options for a technologically new generation of load bearing mechanical devices such as soft robots, assistant devices or solid state aircrafts. Promising candidates for such soft, smart materials are dielectric elastomers (DEs), a special type of electroactive polymers ...
openaire +1 more source