Results Aging index ( elder-child ratio) in Henan was 27.44% in 2004, an increase of 8.22% as compared with that of 19.22% in 1990. During 1982~ 2000, the coefficient of population aging in Henan Province was increased by 1.27%. 结果2004年,河南省老少人口比为27.44%,比1990年的19.22%上升了8.22%;
Aging effect ( in both one and two steps) on the frequency temperature coefficient γ f and the mechanical quality factor Q of Fe-Ni-Cr-Ti Elinvar alloy was studied. 研究了时效(单级和分级时效)处理对Fe-Ni-Cr-Ti埃林瓦合金的频率温度系数γf和机械品质因数Q影响。
Evaluating Aging Coefficient x in Age-adjusted Effective Modulus Method 按龄期调整有效模量法中老化系数x的取值问题
Then the author analyzes the effects of changing the rate of population aging on balanced growth path, output, and labor's consumption, and gets the different formulas of standard coefficient of retirements income. 分析了老龄化率变动对经济平衡增长路径、产出和劳动力消费的影响效应;并给山了养老标准系数的不同临界点的计算公式。
The kinetic curves properties response aging time and temperature were obtained with the coefficient of compression stress relaxation as index of aging property change. 用压缩应力松弛系数作为老化性能变化指标,得出了性能随老化时间和温度变化的动力学曲线。
Influence of Aging Process to the Effective Secondary Electron Emission Coefficient of MgO Film in Surface Discharge ACPDP 老炼过程对表面放电型ACPDP显示屏内MgO薄膜二次电子发射系数的影响
For some devices, the performance change is little after aging, but the approximation coefficient has great difference. 有的器件在老化前后的性能差异甚小,但老化前后噪音信号的低频概貌有较大差异;
Power aging, storage at high temperature, thermal impact and short-time overloading were carried out for the metal film resistors with the temperature coefficient and surface temperature rise of resistors measured. 对电阻器进行了功率老化、高温存贮、热冲击、短时过载等可靠性试验,测量了其TCR和表面温升。
Data from six building sealant samples after heat ageing tests and xenon-arc light ageing tests by way of aging velocity, aging coefficient, ratio comparison of STDEV and Average, and extrapolation of experiential equation were processed to study its durability. 采用老化速率法、老化系数法、标准偏差与平均值的比值比较法、经验方程外推法等方法对6种建筑密封胶样品经热老化、氙灯老化试验后的试验数据进行处理,以研究其耐久性。
Comment index and freshness with the same batch sample, the aging of scoring correlation coefficient is higher, and comprehensive different batches of the analysis, correlation coefficient all declined, may be caused by the difference between the judges. 3. 对于同批次品评样,各老化指标与新鲜度得分的相关系数较高,而综合不同批次的进行分析,相关系数均有所下降,可能是由评委间的差异引起。
The results showed that the physical aging will cause the gas permeation coefficient of membrane decreased, and this process is reversible. 结果表明,物理老化会导致PTMSDPA膜的气体渗透系数下降,此过程可逆。