Results 121 to 130 of about 20,768,812 (286)

Impulse-driven surface breakdown data : a Weibull statistical analysis [PDF]

, 2012
Surface breakdown of oil-immersed solids chosen to insulate high-voltage, pulsed-power systems is a problem that can lead to catastrophic failure. Statistical analysis of the breakdown voltages, or times, associated with such liquid-solid interfaces can ...
Given, M, Sinclair, M.A., Thomas, K.J., Wilson, Mark, Wang, Tao, Lehr, Jane, MacGregor, Scott, Timoshkin, Igor   +7 more
core   +1 more source

Electron dynamics in high power impulse magnetron sputtering discharges

, 2019
Electrons are the main energy carriers in HiPIMS discharges and their properties govern the ionization processes and thus the discharge properties. The properties of the electrons are described by the fundamental plasma parameters, such as the electron ...
Čada, M., Gudmundsson, Jon Tomas,, Martin Čada, Jon Tomas Gudmundsson, Lundin, D., Daniel Lundin   +5 more
core   +1 more source

Sky‐Directional Radiative Cooling Meta‐Films for Daylighting Windows

Advanced Functional Materials, EarlyView.
A geometry‐mediated microprism meta‐film enables transparent, sky‐directional radiative cooling for daylighting windows. By decoupling control of visible transmittance from mid‐infrared emissivity, ground‐emitted heat absorption is suppressed while skyward heat dissipation is enhanced.
Seung‐Ah Yu, Jae‐Hyun Kim, Jinming He, Gumin Kang, Hyungduk Ko, Do‐hyun Koo, Run Hu, Sun‐Kyung Kim   +7 more
wiley   +1 more source

Investigations of Chemical Nonequilibrium Two-Phase Flow in Solid Rocket Motor Nozzles

Aerospace
In this study, a calculation method for two-phase nonequilibrium flow in solid rocket motor nozzles is established, and an in-depth investigation into the nonequilibrium flow within the nozzle is conducted.
Tianhao Feng, Wei Zhao, Yan Ba, Yanchao Zhu, Yiwen Guan, Wenjing Yang   +5 more
doaj   +1 more source

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

Advanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li, Jun Xu, Dezhong Xu, Zhaohui Zhang, Jiyi Li, Daxian Cao, Kefu Chen, Mizi Fan   +7 more
wiley   +1 more source

Aerodynamic analysis of a 1.5 kW two-stage counter-rotating partial-admission impulse turbine for small-scale power system with a high expansion pressure ratio

Case Studies in Thermal Engineering
Partial-admission impulse turbine is suitable for small-scale power cycles with a high expansion pressure ratio (EPR) and a low mass flow rate. However, the exit velocity of a single-stage turbine is very high, leading to a large exit loss.
Ningjian Peng, Enhua Wang, Wenli Wang, Jinjun Lu, Minghua Li   +4 more
doaj   +1 more source

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

Advanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan, Hocheon Yoo, Benoît H. Lessard, Ioannis Kymissis, Chang‐Hyun Kim   +4 more
wiley   +1 more source

Assessment of adaptive properties of winter triticale cultivars by yield in the Middle Urals

Аграрная наука Евро-Северо-Востока
Triticale is a versatile crop with high yield potential but insufficient resistance to unfavourable growing conditions. Therefore, the combination of high yield, adaptability, plasticity, stability and stress resistance of varieties is of great ...
T. А. Babaytseva, I. N. Serebrennikova, E. F. Vafina, A. V. Milchakova   +3 more
doaj   +1 more source

Development of advanced technology for high voltage transformer winding condition control based on probing impulse of nanosecond duration

, 2018
The paper deals with the experimental research of the pulsed method of transformer winding control in comparison with FRA technology. A new approach to winding condition control technology is described. The proposed method is based on short (compared with a typical pulsed technology) probe pulse and front pulse durations.
Lavrinovich, A. V., Mytnikov, Aleksey Vladimirovich   +1 more
openaire   +1 more source

Physics of high power impulse magnetron sputtering discharges

, 2019
The most striking difference between HiPIMS and other magnetron sputtering discharges, in terms of the plasma process itself, lies in the high-power discharge pulses applied and the large discharge currents generated.
Brenning, Nils,, Nils Brenning, Gudmundsson, Jon Tomas,, Jon Tomas Gudmundsson, Lundin, D., Hecimovic, A., Daniel Lundin, Anders, A., André Anders, Tiberiu Minea, Ante Hecimovic, Minea, T.   +11 more
core   +1 more source