Results 61 to 70 of about 96,700 (242)

Universal control scheme for powerful high-voltage MOS inverters eliminating the thyristor effect

Технологія та конструювання в електронній апаратурі, 2005
The proposed approach to designing powerful high-frequency voltage inverters makes it possible to improve their operational reliability while expanding the limits of supply voltages and conversion frequencies.
G. I. Gavrilyuk, T. V. Maevskaya, V. V. Chechel, N. N. Sharan   +3 more
doaj  

Thermodynamic Analysis of the Second Fluid Brayton Cycle for Scramjet Engine

Energies
The burning chamber wall of the ramjet engine is facing an extremely thermal environment during normal conditions. Thermal protection measures must be taken on the wall surface of the combustion chamber.
Jiamao Luo, Xin Qi, Si Jiao, Yunlei Xiao, Shengfang Huang, Shunhua Yang   +5 more
doaj   +1 more source

The thermal accommodation of helium and argon on hot tungsten [PDF]

, 1977
Experiments are described in which the momentum flux of gas atoms, remitted normal to the surface of a hot clean tungsten ribbon immersed in a low pressure of helium or argon, is measured with a torsion balance and the thermal accommodation coefficient ...
Watts, M. J., Watts, Michael James.
core   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

Advanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long, Huanyu Zhou, Jaewan Ko, Hongwei Tan, Jaemin Lim, Yanfei Zhao, Daehan Kang, Eojin Yoon, Gyeong‐Tak Go, Somin Kim, Seung‐Woo Lee, Chan‐Yul Park, Hyojun Choi, Hyeran Kim, Hyung Joong Yun, Sung Hyuk Park, Kwan Sik Park, Jeong Woo Park, Mungeun Kim, Yong Soo Cho, Ho Won Jang, Wenqiang Yang, Min Hyuk Park, Wan Ki Bae, Sebastiaan van Dijken, Joona Bang, Tae‐Woo Lee   +26 more
wiley   +1 more source

Obtaining effective cathodoluminescent structures based on film technology

Технологія та конструювання в електронній апаратурі, 2008
A technological route has been developed and process parameters have been selected for the serial production of thin-film cathodoluminescent structures used in high-resolution information display devices.
L. F. Kovalenko, V. V. Sevastjanov, V. S. Khomchenko, Yu. A. Tzyrkunov   +3 more
doaj  

Advantages and disadvantages of substitution of helium as carrier gas in gas chromatography by hydrogen. Part II. - Retention time and selectivity.

Kvasný průmysl, 2013
Gas chromatography often uses helium, hydrogen, and nitrogen as carrier gases. The most common carrier gas is helium since it provides good separations, is inert, and is safe to use.
Tomáš HORÁK, Jiří ČULÍK, Karel ŠTĚRBA, Jana OLŠOVSKÁ   +3 more
doaj   +1 more source

An ellipsoidal mirror for focusing neutral atomic and molecular beams [PDF]

, 2010
Manipulation of atomic and molecular beams is essential to atom optics applications including atom lasers, atom lithography, atom interferometry and neutral atom microscopy.
Galas, J., Sondergard, E., Reisinger, T., Miranda, R., Fladischer, K., Farias, D., Ernst, W.E., Piatkowski, B., Mayrhofer, V., Surma, B., Miros, A., Holst, B., Reingruber, H., Allison, W., Sitarek, S., Allison,, W., Nieto, P., Ross, A.E., Barredo, D., MacLaren, D.A., Litwin, D., Ross A.E., Nieto P., Allison, William, Farías D., Reisinger T., Sitarek S., Barredo D., Miros A., Barredo, Daniel, Søndergård E., Fladischer K., Galas J., Surma B., Ernst W.E., Litwin D., Allison W., Piatkowski B., Miranda, Rodolfo, Nieto, Pablo, Hoist B., MacLaren D.A., Reingruber H., Farías, Daniel, MacLaren, Donald A., Mayrhofer V.   +45 more
core   +1 more source

Emergent Spin Supersolids in Frustrated Quantum Materials

Advanced Materials, EarlyView.
This review highlights developments in the study of spin super‐solids in frustrated quantum materials. Advanced experimental characterizations and computational studies enable a comprehensive understanding of the driving mechanisms of spin super‐solidity in various layered transition‐metal compounds, bridging materials, experiments, and theory aspects.
Yixuan Huang, Seiji Yunoki, Sadamichi Maekawa   +2 more
wiley   +1 more source

Minimization of error in an integral pressure transducer with a separating membrane

Технологія та конструювання в електронній апаратурі, 2006
The design of an integral pressure transducer (IPT) with a separating membrane (SM) for measuring pressure in aggressive liquids and liquids with solid inclusions has been investigated.
G. G. Babichev, E. A. Zinchenko, S. I. Kozlovsky, V. V. Nedostup, V. A. Romanov, N. N. Sharan   +5 more
doaj  

Above Room Temperature Ferroelectricity in Epitaxially Strained KTaO3

Advanced Materials, EarlyView.
Through precise epitaxial engineering, the cubic and paraelectric KTaO3${\rm KTaO}_3$ is transformed into a robust ferroelectric. By leveraging lattice‐mismatched substrates to apply controlled epitaxial strain, a stable ferroelectric ground‐state is achieved with a transition temperature as high as 475 K, establishing KTaO3${\rm KTaO}_3$ as a highly ...
Tobias Schwaigert, Salva Salmani‐Rezaie, Sankalpa Hazra, Utkarsh Saha, Maya Ramesh, Aiden Ross, Betül Pamuk, Long‐Qing Chen, David A. Muller, Darrell G. Schlom, Venkatraman Gopalan, Kaveh Ahadi   +11 more
wiley   +1 more source