The photoluminescence (PL) and photo-generated carriers decay properties of nano-SiC films have been studied.
不同衬底偏压下样品的光生载流子衰减特性分析表明,纳米SiC薄膜中光生载流子所经历纳秒级的快衰减过程关联于样品的辐射复合过程,该过程几率随衬底偏压增大而增加;在光生载流子慢衰减过程中,有两种缺陷形成的陷阱起主要作用,衬底偏压导致陷阱深度增加。
The initial experimental results show that the main reason for performance degradation is the decrease of ESA that caused by sintering during high temperature operation.
以PBI/H3PO4体系高温质子交换膜燃料电池为研究对象,进行了500h恒负载条件下的连续寿命实验,运用电化学电位扫描技术和交流阻抗技术测试了电池在连续运行过程中的电化学活性面积(AEC)和电池内阻的变化,实验结果表明在500h的连续寿命实验中,电池性能衰减的主要原因是高温操作条件下由于催化剂的烧结造成的电化学活性面积的损失。
The main reasons of performance degradation of Pt/C catalysts for proton exchange membrane fuel cell(PEMFC)in long term working and the method to improve the stability of Pt catalyst were summarized.
总结了质子交换膜燃料电池(PEMFC)用Pt/C催化剂在长时间运行过程中性能衰减的主要原因及近年来提高Pt催化剂稳定性的方法。
Setting about from the origin of SOFCs resistances, the main factors of influencing the long-term stability of SOFCs, especially the factors of inducing SOFCs performance degradation, are analyzed in detail.
本文从SOFC内阻的主要来源出发,详细分析了影响电池长期稳定性、特别是引起性能衰减的主要因素,并研究其衰减机理。
This paper discusses the uniqueness and stability of solutions to Cauchy Problem in Kawahara-Burgers Equation and the certain decay of the problem when t→+∞.
讨论了Kawahara-Buegers方程Cauchy问题解的唯一性、稳定性,以及当t→+∞时,该问题解所具有的一些衰减性质。
A class of cardinal orthogonal scaling functions are constructed,and the regularity and the decay of these scaling functions are discussed.
本文给出一类正交基插值尺度函数,讨论了这类尺度函数的光滑性和衰减性,特别研究了两种情况下这类尺度函数的光滑性和衰减性。
In this paper we consider a system of degenerate Davey-Stewartson equations and prove the global existence and the decay of weak solutions for appropriate initial data.
考虑一类退化的Davey-Stewartson方程组,在适当的初值条件下,证明了此方程组弱解的存在性和衰减性。
The equivalent time constants are derived from the decay characteristics of the induced current.
等效时间常数可以从感应电流自然衰减特性得到,电阻和电感则通过计算被动反馈线圈中涡流损耗和磁场能量中求得。
Photo-generated Carriers Decay Properties of Nano-SiC Films;
纳米碳化硅光生载流子衰减特性研究
Study on the Characteristics of Laser Propagation and Attenuation Through the Fog;
激光在雾媒质中的传播衰减特性研究
Study of the attenuation characteristic of white light-emitting diode by different package
不同封装白光LED衰减特性的研究
Study on Characteristic of Photoelectron Decay in Doping AgCl
掺杂AgCl中光电子衰减特性研究
Prediction for Extinction Property of Al_2O_3 Particle by LSSVM Method
预测Al_2O_3粒子衰减特性的LSSVM方法
Study of Rainfall Attenuation Characteristics of Ku-Band Satellite Link
Ku频段卫星链路降雨衰减特性分析
Beam Hardening Correction Algorithm Based on Material Attenuation in Computed Tomography
基于材料衰减特性的CT硬化校正算法
Radiation degradation characteristics of deuterium lamp with MgF_2 window in vacuum environment
氟化镁窗口氘灯的真空辐射衰减特性
Attenuation characters of Rayleigh wave in layered soils
层状地基中瑞利波随深度的衰减特性
Dispersion and Attenuation Characteristics in Linear Viscoelastic Medium;
线性黏弹介质中的频散和衰减特性研究
STUDY ON GPR WAVE PROPAGATION ATTENUATION BEHAVIORS IN HETEROGENEOUS MEDIUM
有耗介质探地雷达波传播衰减特性的研究
Study of Characteristic of Electromagnetic Wave Attenuation in Frequency Domain in Coal-Rock Medium;
煤岩介质电磁波衰减特性的频率域研究
The research on measuring the sediment's acoustic attenuation characteristic on seafloor using direct ultrasonic measurement
海底沉积物声衰减特性直接测量方法研究
Effects of Cross-linking Temperature on Decay Behavior of XLPE Charge Accumulation
交联温度对XLPE累积电荷衰减特性的影响
Attenuation of Double-layer Type Microwave Absorber Made of Carbon Nanotubes-dielectric Composite Material
碳纳米管/电介质双层吸波涂层衰减特性分析
Temperature decaying characteristics along refrigerant pipeline of multi-coupled unit air conditioning systems
多联机系统制冷剂输液管道温度衰减特性研究
Analysis of Attenuation Coefficient and Cutoff Character in Isosceles Right Triangular Waveguide and Pentagonal Waveguide;
等腰直角三角形和五边形波导截止特性和衰减特性分析
Calculation and Analysis of the Interference Characteristics by Rocket Wake Flame Electromagnetic Parameters
火箭尾焰电磁特性参数对电磁波衰减特性影响研究