Memory whose lifetime is limited to the current function is fairly easy to manage, but for memory that lives beyond that, it becomes much more difficult. 生存期局限于当前函数的内存非常容易管理,但是对于生存期超出该范围的内存来说,管理内存则困难得多。
However, for two-dimensional joint lifetime distribution consisting of two dependent components, it is difficult to depict it by only failure rate function. 但对于二维相依部件的联合寿命分布,单纯用失效率去刻画就比较困难了。
Maximum likelihood method for getting p_S_N curves when lifetime follows Weibull distribution is studyed in this paper. The parameters of the curves equation can be obtained by finding the minimum points of non-linear multiplex function. 针对疲劳寿命服从Weibull分布时,研究了材料pSN曲线方程拟合的极大似然法,将求解方程参数的问题化为求多元非线性函数的极小点问题。
In view of the specificity of RD activities as well as its lifetime function, RD performance has gained prominence within academic circle at home and abroad and business circle as well. 高新技术企业RD活动的特有属性和RD生命期的作用,使得国内外学术界和企业界都十分关注RD的绩效。
This paper presents a method of eliminating the affects of the time resolution function in the positron annihilation lifetime spectrum fitted with a multi-exponential function. 本文提供一个从正电子湮没寿命谱中消除时间分辨函数的影响作指数函数拟合的方法。
The apparatus can be used to measure the lifetime of fluorescence segment, electron excitation function, electron energy loss spectra and molecular dissociative processes. 此装置可用于研究荧光寿命、激发函数、电子能量损失谱和分子解离过程。
At the same time, it claims that the teaching practice of sports clubs should well regulate the three relations between lifetime sport and "three basis" teaching, the dominant function of teachers and principal function of students as well as the competitive sports and health first. 提出体育俱乐部教学实践应处理好终身体育与三基教学、教师主导作用与学生主体作用、竞技体育与健康第一的三个关系。
A program for the analysis of positron annihilation lifetime spectra with a multi-exponential function fitting 正电子湮没寿命谱指数函数拟合程序
The annealing temperature dependence of D and the short lifetime component τ_1, intermediate lifetime component τ_2 and their intensity ratio I_2/ I_1 as function of Dare given. 给出了平均粒径随退火温度的变化和短寿命成分τ_1、中等寿命成分τ_2以及它们的强度比I_2/I_1随平均粒径的变化。
A Fatigue Lifetime Prediction Model Based on Membership Function 基于隶属函数的疲劳寿命预测模型
Based on theoretical analysis, the operation lifetime of He-Ne lasers obey the time-varing Weibull function, in which the chracteristics lifetime of He-Ne laser is included. 本文在理论上从电子元器件的特征寿命η所服从的逆幂律,分析导出了描述氦氖激光管工作寿命的以时间t为自变量的威布尔分布函数;
The positron lifetime spectra have been measured as a function of exposed air pressure for synthetic zeolite 13X and 3A, and as a function of calcination temperature for zeolite 10X. 测量了3A型及13X型沸石分子筛在不同压强空气中的正电子寿命谱,并测量了10X型分子筛在不同温度下焙烧后的寿命谱。
Measurement of Arbitrary Samples with Longer Lifetime for Determining Distinguishable Function of Positron Annihilation Life Spectroscopy Instrument Positron Annihilation Life Spectrum Study on Disodium Sulfosalicylate ( DSS) Crystals 测量具有较长寿命的任意样品的寿命谱确定正电子湮没谱仪分辨函数的方法研究
Compared with other BLM systems, this novel ITO/ BLM system shows advantages such as better stability, faster formation and longer lifetime, which is an ideal model for studying biomembrane function. 通过实验研究表明,ITO/BLM膜系统具有稳定性好、成膜速度快、寿命较长等许多优点,是一种更适于生物膜功能研究的理想模型。
According to the relation of conditional failure rate function and Multivariate lifetime distribution built, we discuss some important qualities related to conditional failure rate function and apply the depiction to some examples. 由建立的条件失效率与多维寿命分布之间关系,讨论了一些与条件失效率相关的重要性质,并举例说明这种刻画的运用。
Investigation on lifetime of He-Ne lasers by means of Weibull function 用威布尔函数研究氦-氖激光管的寿命特性
The theoretical and experimental results show that the operating lifetime distribution of He-Ne lasers under normal working electric current and accelerated electric current both obey Weibull function. 理论和实验研究表明:氦氖激光器在正常点燃电流和加速电流下的工作寿命分布均服从威布尔函数规律。
How to extend the network lifetime of sensor networks without affecting the function under the premise of the energy efficient use of the node, in order to play a potentially great value becomes wireless sensor network routing protocol design of the primary considerations. 那么,如何在不影响功能的前提下,高效使用节点的能量,延长网络系统的生存期从而发挥传感器网络潜在的巨大价值,成为无线传感器网络路由协议设计的首要考虑因素。