Results 111 to 120 of about 14,305 (269)
In this document the state of art of UHV connectors is analyzed and the main factors such as geometry, corona and bundle among others are ...
Hernández Guiteras, Joan +1 more
core
, 2000 利用SiH_4和GeH_4作为源气体，对UHV/CVD生长Si_(1-x)Ge_x/Si外延层的表面反应机理进行了研究，通过TPD、RHEED等实验观察了Si(100)表面SiH_4的饱和吸附、热脱附过程，得出SiH_4的分解应该是每个SiH_4分子的4个H原子全部都吸附到了Si表面，SiH_4的吸附率正比于表面空位的4次方，并分析了GeH_4的表面吸附机制。在此基础上建立了UHV/CVD生长Si_(1-x)Ge_x/Si的表面反应动力学模型,利用模型对实验结果进行了模拟 ...
黄昌俊 +7 more
core
Research on Ultra‐Wideband Pulse Current Method for DC Partial Discharge Measurement
High Voltage, EarlyView.ABSTRACT The conventional pulse current method is commonly used in AC or DC withstand voltage tests with partial discharge (PD) monitoring. Because of its relatively narrow measurement bandwidth, this method tends to ignore critical information in PD waveforms, making it difficult to eliminate pulse‐type interference under DC voltage conditions, where ...
Kaining Hou +4 more
wiley +1 more source
Growth of near planar Si0.5Ge0.5 epitaxial layers directly on Si substrate by UHV/CVD at 500℃
, 2006 The relationship between Ge content of Si1-xGex layers and growth conditions was investigated via UHV/CVD system at relative low temperature of 500℃. Si1-xGex layers were in a metastable state in this case.
Cheng Buwen +6 more
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High Voltage, EarlyView.ABSTRACT As a commonly used bushing current‐carrying structure in recent years, contactor‐type electrical connection parts operate in a complex environment of electric, thermal and chemical corrosion for extended periods. With the increase of ultra‐high voltage (UHV) transmission capacity, its operating environment faces more stringent challenges, and ...
Qingyu Wang +9 more
wiley +1 more source
Journal of Innovation & KnowledgeUltra-high voltage (UHV) transmission projects are a cornerstone of China’s supply-side energy reforms, enhancing the national power system’s balance, efficiency, and resilience.
Ting Chen, Qiuwang Cheng
doaj +1 more source
, 1961 Einleitung: Im Jahre 1953 gab Alpert eine Kupferfolienfalle für Öldiffusionspumpsysteme an, mit der es möglich ist, das Endvakuum für eineige Wochen unter 10-9 Torr zu halten. Nach dieser stay-down-Zeit steigt der Druck ziemlich schnell auf einige 10-8 Torr, den "Dampfdruck" des Treibmittels, an.
openaire +2 more sources
High Voltage, EarlyView.ABSTRACT Abnormal heating due to decay‐like degradation in composite insulators is influenced by environmental moisture, but the relationship between the internal degradation status of the core rods and their electrical properties under varying humidity conditions remains poorly understood. In this work, the decay‐like degraded fibre‐reinforced polymer
Shuqi Liu +8 more
wiley +1 more source
A 3He cooled scanning tunneling microscope in UHV and high fields
, 2000 We present a scanning tunneling microscope (STM) operating between 275 mK and room temperature in ultra-high vacuum (UHV) and in magnetic fields up to 14 T.
Renner, Christoph +4 more
core +1 more source
800 kV Fast Circuit Breaker: Mechanical Coupling Modelling, Buffer Design and Development
High Voltage, EarlyView.ABSTRACT The 800 kV fast circuit breaker (CB) used in ultra‐high voltage (UHV) converter transformer can reduce the total breaking time to 25 ms. It significantly improves the action speed and breaking capacity of the CB, with promising broad application prospects.
Enyuan Dong +6 more
wiley +1 more source