The ageing rate R -0.
9keV X射线全能光电峰位随累积电荷量的变化分别得到大单元老化率为-0。
In the accelerated aging experiments of small cell drift chamber,the dependence of aging rate on the source activity was observed.
在小单元漂移室多次模拟老化实验中,观察到测量所得的老化率与辐照放射源强度的相关,讨论了产生此种相关的可能原因。
With parameter study,property changes,aging rate of asphalt and the difference of aging mechanism were analysed under different aging conditions.
为了研究沥青的老化行为及抗老化性能,将沥青进行旋转薄膜烘箱老化(RTFOT)和60℃烘箱老化试验,并从不同使用年限的路面回收老化的沥青,采用非线性微分动力学模型对不同老化方式的沥青粘度进行拟合,根据模型参数讨论了沥青在不同老化条件下的性质变化和老化速率,并分析了老化机理的差异。
The results show that the nonlinear aging equation can predict the attenuation of penetration,soft point,viscosity and ductility in thermal and oxygen aging,and can quantify the aging rate and the ultimate degree.
针对沥青热氧老化预测的不足,采用旋转薄膜烘箱试验研究了克拉玛依90#沥青在热氧老化过程中的针入度、软化点、粘度、延度与老化时间的关系,建立了预测沥青因热氧老化引起的性能衰减规律和老化速率的非线性老化方程。
1/f noise in GaAlAs infrared ray LEDs(IR LEDs) was experimentally studied over a wide range of bias currents with special emphasis on power aging.
对GaA lAs红外发光二极管(IRLED)功率老化前后低频噪声的测量发现,1/f噪声幅值与偏置电流的γ次方成正比(小电流区γ=1,在大电流区γ≈2),且老化后1/f噪声幅值比老化前增大2个数量级。
This paper introduces the principle and the systems of diurnal aging rate for high-stability crystal oscillator.
本文介绍了高稳晶振日老化率检定的原理和系统,根据时间频率计量检定规程不确定度评定要求,在采用铯束原子频率标准装置和频差倍增法时,分析了日老化率不确定度的主要来源,讨论了测量结果不确定度的评定。
ESTIMATED THE LONG-TERM FREQUENCY AGING RATE OF QUARTZ CRYSTAL ELEMENT BY CURVILINEAR EQUATION
利用曲线回归方程估计石英晶体元件的长期频率老化率
Analysis of the Action of Static Power Dissipation in Burn-in Condition on Yield of VLSI
集成电路老化温度与耗散功率、频率关系的研究
The social coverage of basic pensions reached 97.97 percent of retirees.
基本养老金社会化发放率达97.97％。
Study on Aging of PBSZT Piezoelectric Ceramics for High-power Applications
PBSZT大功率压电陶瓷老化性能的研究
The Acceleratedlifetime-Test Method Research on High Power Laser Diode;
大功率半导体激光器加速老化试验方法研究
Thermal Management and Aging Test of High-Power White LED;
高功率白光LED封装热设计及其老化特性的研究
Empirical Analysis of GDP Per Capita Growth Changing Rate under the Aging of Population;
老龄化下人均经济增长率变动的实证分析
Counting the Substitution Rate of the Basic Pension Based on the Pareto Improvement Model;
基于帕累托优化的基本养老金替代率测算
A design of high power LD aging instrument;
大功率半导体激光器老化实验台的研制
Optimal Management of Pension Fund Under Term Structure Model;
随机利率模型下养老基金的最优化管理
Measurement and Calculation of Money raising Rate of Basic Medical Insurance in the Old Age Tendency;
老龄化趋势下基本医疗保险筹资费率测算
The Influence of Aging on the Relationship between Inflation Rate and Unemployment Rate in China
老龄化对中国通货膨胀与失业率关系的影响
aged-dependency ratio
老年人抚养〔比〕率
A Study on Electrochemical Corrosion Induced by Delamination during Hydrothermal Aging in Plastic Encapsulated Power Device
塑封功率器件在湿热老化试验中分层导致的电化学腐蚀的分析
100 percent of retirees from enterprises involved in the general program of retirement security received their basic pension payments from non-State sources.
全市参统企业退休人员养老金社会化发放率达到100%；
Milan is a fast-ageing city in the country with one of the lowest birth rates in Europe.
米兰是意大利老龄化最快的城市，也是欧洲出生率最低的城市之一。
The dependency ratio is more advantageous in older societies than in younger societies.
扶养率在老龄化社会里比年轻社会里要有利一些。
Dementia incidence may increase more slowly after age 90: Results from the Bronx Aging Study
布朗克斯老龄化研究表明90岁后痴呆的发病率上升变缓