Results 41 to 50 of about 64,242 (295)

Bottom-loading dilution refrigerator with ultra-high vacuum deposition capability

, 2001
A Kelvinox 400 dilution refrigerator with the ability to load samples onto the mixing chamber from the bottom of the cryostat has been combined with an ultrahigh-vacuum (UHV) deposition chamber equipped with molecular beam sources.
A. M. Goldman, L. M. Hernandez, Shal’nikov A. I., Tsymbalenko V. L., Zavaritskii N. V.   +4 more
core   +1 more source

Electromagnetic Transient Simulation Algorithm for Nonlinear Elements Based on Rosenbrock Numerical Integration Method

IEEE Access
Traditional nonlinear elements of the electromagnetic transient simulation program (EMTP) use the numerical integration method, often employing the trapezoidal integration method as an implicit algorithm. However, when the number of nonlinear elements is
Jing Ye, Jihao Xie, Yong Wang, Liang Zhang, Binshan Li, Jinwei Lv, Ke Li, Shengpeng Jin, Yang Xu, Wei Ma   +9 more
doaj   +1 more source

Further Research on Insulation Coordination of UHV Half-Wavelength Power Transmission Line

Zhongguo dianli, 2019
Ultra high voltage half wavelength transmission (UHV HWACT) is a kind of transmission mode with large capacity and long distance, which has the advantages that it is not necessary to install reactive compensation devices of the line and to build switch ...
Liuchun ZHANG
doaj   +1 more source

Study on partial discharge and charge accumulation characteristics of oil‐pressboard insulation under DC superimposed harmonic voltage

High Voltage, 2023
The oil‐pressboard insulation on the valve side of the converter transformer withstands pulsating square wave voltage. The voltage contains lots of DC components and high‐order harmonics, which is likely to cause insulation failures.
Shuqi Li, Qiang Wang, Dongxin He, Liangkai Wang, Qingquan Li, Wen Si   +5 more
doaj   +1 more source

Improved Electrogeometric Model of UHV Transmission Line Based on Long Gap Discharge and Its Application

Frontiers in Energy Research, 2022
Based on long air gap discharge test data and lightning return stroke observation data, an improved electrogeometric model (EGM) considering terrain conditions is established and verified to analyze the lightning shielding performance of UHV transmission
Yuanchao Hu, Minghao Yang, Lu Qu, Yunzhu An, Jing Wang, Yan Cheng, Xiao Sha, Qingchen Wang, Chenghui Ma, Bingchen An, Dan Chen   +10 more
doaj   +1 more source

Composition and Resulting Band Alignment at the TiO2/InP Heterointerface: A Fundamental Study Combining Photoemission Spectroscopy and Theory

Advanced Functional Materials, EarlyView.
The chemical composition and band alignment are systematically investigated at the TiO2/InP heterointerface. Thin TiO2 films are deposited by ALD on atomically ordered, P‐terminated p‐InP(100). By combining UPS, XPS, and ab initio molecular dynamics, the atomistic structure and electronic alignment are revealed.
Mohammad Amin Zare Pour, Muhammad Nawaz Qaisrani, Christian Höhn, Johannes Laurenz Wolf, Negin Mogharehabed, Jennifer Velazquez Rojas, Wolfram Jaegermann, Erich Runge, Roel van de Krol, Thomas Hannappel, Christian Dreßler, Agnieszka Paszuk   +11 more
wiley   +1 more source

Research on Integrated Standardization of the UHV GIL Technology

Zhongguo dianli, 2019
In order to improve the coordination and systematization of technical standards for the UHV GIL, the integrated standardization theory has been applied in UHV GIL technology field.
Jie HE, Boyuan CUI, Hao WANG, Pengfei ZHANG, Zhibing LI, Shuang CHEN, Yun TENG   +6 more
doaj   +1 more source

Is There a Negative Thermal Expansion in Supported Metal Nanoparticles? An In-Situ X-ray Absorption Study Coupled with Neural Network Analysis

, 2019
Interactions with their support, adsorbates and unique structural motifs are responsible for the many intriguing properties and potential applications of supported metal nanoparticles (NPs).
Ahmadi, M., Roldan Cuenya, B., Timoshenko, J.   +2 more
core   +1 more source

Thermal Stability of Self-Assembled Monolayers of n-Hexanethiol on Au(111)-(1 × 1) and Au(001)-(1 × 1) [PDF]

, 2017
Thermal desorption in an ultrahigh vacuum of n-hexanethiol (C6T) self-assembled monolayers (SAMs) prepared from ethanolic solutions on Au(111) and Au(001) unreconstructed surfaces was investigated by X-ray photoelectron spectroscopy.
Afeefy H. Y., Gustavo Ruano, Julio Ferrón, Lucila J. Cristina, Moulder J. F., Roberto Salvarezza   +5 more
core   +2 more sources

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

Advanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán, Janis Timoshenko, Andrea Martini, Hyo Sang Jeon, Eduardo Ortega, Martina Rüscher, Arno Bergmann, Aram Yoon, Uta Hejral, Antonia Herzog, Clara Rettenmaier, Felix T. Haase, Philipp Grosse, Beatriz Roldan Cuenya   +13 more
wiley   +1 more source