值
- 与 值 相关的网络例句 [注:此内容来源于网络,仅供参考]
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To solve this problem, according to the analysis of the quality factors of the X-ray, the measurement for X-ray tube voltage/current is presented based on Q-factor and its derived QL and QH-factor when X-ray tube energy bandwidth is defined.
针对传统的管电压/管电流测量方法虽然可以检测出X射线管电压/管电流误差值,但不能反映其质量特征的状况,在分析影响X射线质量高低的因素的基础上,引入了射线管能量带宽的含义,并由此提出了基于Q值及其派生QL值、QH值的射线管电压/管电流分析方法。
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As a whole, the rocks from diorite enclaves, through quartz-diorite, granodiorite to monzonitic granite, have the feature of REE slightly increasing, Eu from weakly positive transits to negative anomaly, but the diorite enclaves which has Eu negative anomaly. Besides, the Ba, Nb, Ta, P and Ti all show negative anomaly, and have positive anomalies of K and Th, simultaneously, there exists Sr positive anomaly in some rocks. Along with the increasing of the SiO〓, the P and Ti have negative anomaly, Th and K positive anomaly are obvious.
张广才岭中生代不同时期的花岗岩具有相同的Sr、Nd同位素特征,均具有高ε〓值、低,值的突出特点,ε〓值集中在-2~+4之间,〓值主要集中在0.703~0.706之间。
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We know, GG engineer is announcing news external for many times in, want the issue that drag in is worth to PR only, can emphasize emphasize PR be worth the relation between as real as the website quality but, the PR cost that says here is a rack one's brains after all, cost uses up setbacks, where is the cost that makes?
我们都知道,GG工程师在多次对外公布信息中,只要牵扯到PR值的问题,都会着重强调PR值与网站真实质量之间的关系但是,这里所说的PR值到底是一个挖空心思,费尽周折,做上去的值呢?
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After regular to faintness library matrix ω undertakes bizarre value is decomposed, the basis is given threshold value abandons bizarre value appropriately, express u σ what get matrix ω approximatelyv(kt, undertake to u and v the standard is mixed processing, use protruding to wrap a technology to undertake is not enjoying a sex and normal state sex processing, use the u after processing,σ and v generate new regular library before after subject function is mixed matrix, library of new and tectonic regulation, the function of new regular library and former regular library are approximate, but regular number decreases significantly.
本篇论文剩余部分,请联系九旭论文代写www.991lw.com网站客服qq:论文写作:1210196822 论文发表: 739878127 论文咨询:1210196822②qq.com,联系电话:013155803009。关键词:——模糊规则库;奇异值分解;凸包;约简;梗概:对模糊规则库后件矩阵ω进行奇异值分解,根据给定的阈值适当舍弃奇异值,得到矩阵ω的近似表示uσv(kt,对u和v进行标准和处理,并利用凸包技术进行非负性和正态性处理,利用处理后的u,σ和v生成新规则库的前件隶属函数和后件矩阵,重新构造规则库,新规则库的功能和原规则库近似,但规则总数显著减少。
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Based on choosing contrast and definite water conditions, we suggested that relative mean yield of all irrigation treatments, revisionary drought yield index , revisionary water yield index , sensitivity index of stages and revisionary yield index could be used to identify yield, drought resistance, water use efficiency, water sensitivity and water adaptive.
提出在合理选用对照种和明确水分鉴定条件的前提下,采用干旱产量指数修订值鉴定品种的抗旱性,用丰水产量指数修订值鉴定各水分条件下品种的水分高效性,用各水分条件下品种的平均产量相对值鉴定品种的高产性,采用阶段敏感指数鉴定不同生育期的水分敏感性,采用产量系数修订值鉴定品种的适水性。
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Theδ~(13)C of Robinia pseudoacacia and Fraxinus chinesis were gone beyond the range of C_3 plants,and the averageδ~(13)C of 7 trees under 720μmol·mol~(-1)CO_2 were higher than the average of C_3 plants,which is 27.0‰.
针叶树的叶δ~(13)C值高于阔叶树,叶δ~(13)C值明显小于枝条和根系的,刺槐和白蜡的δ~(13)C值超出了全球C_3植物的δ~(13)C值的极限范围,720μmol·mol~(-1)CO_2所有树种的平均值远高于C_3植物的平均值27.0‰。
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By using the KDMRF-1000F MRF polishing machine and KDMRW-1 water based MR fluid,one K4 flat work piece (80 mm in diameter) and one K9 sphere work piece (145 mm in diameter) were polished,experiments show that work piece one has a peak-to-valley value of 55.3 nm and a root-mean-square value of 5.5 nm;and work piece two has a PV value of 40.5 nm and a RMS of 5 nm,which indicates that the surface roughnesses of two work pieces have been improved obviously.
实验显示,样件一面形收敛到PV值55.3 nm,RMS值5.5 nm;样件二面形收敛到PV值40.5 nm,RMS值5 nm;样件的表面粗糙度均有显著改善。结果表明,磁流变修形技术具有高精度、高效率、高表面质量的特点。
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A prediction model has been proposed to deal with threshold voltage shift as a function of 1MeV neutron flux and gate oxide thickness, and to deal with room-temperature annealing of threshold voltage shift induced-by 〓Coγ as a function of electric field and gate oxide thickness. The commonness and individuality of MOS device degradation between hot-carrier effect and ionizing radiation were investigated. The dependence of substrate current, gate current and threshold voltage shift due to hot-carrier on gate oxide thickness were simulated with MEDICI-2D simulator. The photocurrents of PN junction and bipolar transistor were studied. Their transient responses on varied bias voltages, pulse durations and absorbed doses were simulated. The influences of NPN base width on base and collector photocurrents were investigated. We also studied 1MeV neutron displacement damage in PN junction, and calculated reverse current leakage under the neutron flux of 2. 67×10〓 per square centimeter. 3 The study of nondestructive screening method for MOS radiation tolerance A theoretical and experimental study of nondestructive screening methods for radiation tolerance of nMOS and pMOS were firstly fulfilled. We determined the informative parameters pertinent to the method and proposed how to deal with experimental data and verify obtained results statistically, as well as make the required steps for nondestructive screening. Based on the experimental data of 180 samples of discrete pMOS devices, the relation between sample quantity and correlation coefficient, screening equation, and other significant results were obtained from the threshold voltage shifts of pre-and post-irradiation samples.
二、分立器件电离和位移辐射损伤响应研究在国内首次开展了电离辐射引起的氧化层阈值电压漂移和退火理论研究,编程计算了1MeV中子引起的MOS器件阈值电压漂移与中子通量及栅氧厚度的关系,计算了〓Coγ光子引起的阈值电压漂移及退火的时效曲线与纵向电场和栅氧厚度的关系等,对评估MOS型集成电路电离损伤和加固方法研究,以及论文中开展的MOSFETs无损筛选方法研究奠定了基础;分析了MOS器件热载流子损伤效应与辐射电离损伤效应之间的异同性,利用二维模拟软件MEDICI-2D模拟了衬底电流和栅电流,在不同栅氧厚度下随栅压的变化曲线,计算了热载流子效应造成的阈值电压漂移,研究结果对当前存在的以热载流子效应研究取代电离辐射损伤实验研究的设想,具有重要的参考价值;开展了PN结和双极晶体管电离光电流研究,计算了不同偏压、不同辐射脉宽和不同吸收剂量下PN结光电流的瞬时响应,计算了不同辐射脉宽下NPN晶体管基极电流和收集极电流的瞬时响应,以及基区宽度对NPN晶体管光电流的影响,研究结果对双极器件抗电离辐射损伤响应及加固方法研究具有重要意义;在国内首次开展了器件位移损伤的理论研究,分析了辐射产生的缺陷对电性能的影响,计算了注量为2.67×10〓cm〓的1MeV中子产生的缺陷对PN结反向电流的影响。
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Scatter diagram of the morphological differential value and molecular differential value shows plants molecular differential value≥2 are heterotipe. The correlation coefficient of the morpha uniformity ratio and molecule uniformity ratio is 0.98, extreme correlation. So the heterotipe criterion of the molecular differential value≥2 is made.
通过对14个品种278个株的形态差异值和分子差异值的散点图分析,得出形态差异值≥2为异型株;由形态一致性比率和分子一致性比率的相关性系数为0.98,相关极显著,确定分子差异值≥2作为判定异型株的标准。
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The temperature field of cross section and temperature variation graph in bar and rod continuous rolling process were done by FEM.
本文采用有限元方法对棒线材连轧过程轧件温度场进行了解析,解出了轧件横断面温度场并绘制了连轧过程中轧件温度变化曲线,可以看出变形区热传导作用对轧件表面温度有较大的影响,计算结果表明,在精轧机组之前设定值与轧件表面温度的计算值吻合,在进入精轧机组之后设定值更接近于轧件平均温度的计算值。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力