中值
- 与 中值 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The main achievement is as following: Present a new software structure with insert mode based on diagram and data platform. With this structure the software can be used in various voltage levels of power networks by switching function groupware with corresponding edition. Therefore it is important to solve software universality and developability.(2) Present a new idea that any operating condition is combination of running mode of plant or station, power supply topological and rules of equipment maintenance. This idea is very useful at simplifying setup and choice of operating conditions and ensuring calculation result correction.(3) Present a new idea of protection setting examination and rectification. Protection setting examination is used to examine the selectivity、 sensitivity and speed under certain operating condition, and pass an opinion whether these settings are wrong;Setting rectification is used to calculate new relay settings when error is found in setting examination.(4) Point out that interaction design is the key step in developing power system application software,which can secure usability.
主要成果有:(1)提出了以图形/数据平台为基础的插件式软件结构,通过配置不同版本的功能插件即可应用于不同特点的电网,对解决软件的通用性和可发展性具有重要意义;(2)提出了基于厂站方式、供电方式和检修规律相组合的运行方式分解方法,它能有效提高运行方式选择的合理性与全面性,使定值计算的正确性得到保障;(3)提出了保护定值校正的思想并进行了软件实现,它能检测当前保护定值在选择性、灵敏性、快速性等方面是否适合当前的运行方式,并对不正确的定值进行纠正;(4)指出交互设计应作为电力系统应用软件开发中的一个关键步骤,目的是保证软件的可用性,并对软件开发的过程进行了总结,提出了许多有益的实践经验。
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The new threshold function overcomes the shortcomings of the hard threshold with discontinuous function and solves the problem of the permanent bias in soft threshold function,and it is more flexible than the soft threshold and hard threshold function.
新阈值函数克服了传统硬阈值函数不连续的缺点,解决了软阈值函数中存在的恒定偏差,并且具有软硬阈值函数不可比拟的灵活性。
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This thesis analyzes the energy eigenvalue and of the Harmonic oscillator with a one-dimensional δ-function, makes a comparative study of those of the one-dimensional harmonic oscillator, and analyzes the reason which causes their different quality and the different influences to the eigenvalue of the even parity energy and to the wave function when the number of the "Z" is different.
本文研究了一维δ势场中的谐振子的能量本征值及其本征波函数,并与一维谐振子的能量本征值和波函数进行了比较,分析了它们的性质不同的原因以及取不同势参数Z值时对偶宇称能量本征值和波函数的不同影响。
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However, methods and references for difference equation are relatively less. The new method proposed in this paper transfer the complex boundary value problem into the existence and uniqueness of the solution of the linear equations. For linear case , we obtained the necessary and sufficient conditions for the existence and uniqueness of the solution for the BVP; For the nonlinear case ,we got a series of new sufficient conditions by using contraction mapping theory and cone theory .
而差分方程边值问题的研究方法和文献还很少,文中新的研究差分方程边值问题的方法是将复杂的边值问题求解转化为代数理论中的线性方程组解的存在和存在唯一问题;对线性情形,较容易地获得了边值问题的解存在以及唯一的充分必要条件,而对非线性情形,则通过压缩原理和锥理论等各种不动点定理,获得了一系列新的充分条件。
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The problem of multi-objective usually meet many conflict each other and can not use the objective of the same standard unit, then to employ membership function of fuzzy theory,at first each objective function to change fuzzy set and express with membership function, membership function include the maximum constraint, minimum constraint, the decrease function of monotonic property, to become optimal of the multi-objective function, but still to scanty of weighting value with regard to adjustment of objective function, thus this thesis proposes the method of combine orthogonal arrays and particle swarm optimization to solve the problem of multi-objective optimal power flow, each objective function separately add weighting value, to setting each weighting value of objective function in order to the result of anticipating.
多目标最佳化的问题通常会面临到许多互相冲突且不能用同ㄧ标准单位的目标,於是利用模糊理论中的归属函数,首先将各目标函数转换成模糊集合并以归属函数表示,归属函数包含了最大限制值、最小限制值、单调的递减函数所组成,将各目标函数利用归属函数表示,形成单一目标函数的最佳化,但是仍缺乏权重值对於目标函数的调整,於是本篇论文提出ㄧ种权重值设定与粒子群优演算法的方法去解决多目标最佳电力潮流的问题,将各目标函上分别加上权重值设定各目标函数的权重值,得到预期的效果。
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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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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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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。
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Seeing image as a matrix, the method applied singular value decomposition on image matrix to decompose image information to a series of sub-spaces correspond to singular value and singular value vector, and then by reconstruction of image matrix using effective singular value to remove noising.
从矩阵的角度出发,通过对图像矩阵进行奇异值分解,将包含图像信息的矩阵分解到一系列奇异值和奇异值矢量对应的子空间中,然后通过有效奇异值重构图像矩阵达到去噪目的。
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Part Three The study of Lattice-valued Modal First-order Logic System and Its Resolution Principle In this part, we introduced quantifiers and predicate into LMP, put up lattice-valued modal first-order logic system LMF, and gave its semantic interpretation and syntax structure, proved soundness theorem and consistence theorem. Moreover, in order to judge the satisfiability of formula, defined Skolem standard type and H-interpretation. Based on these work, made a primary discussion of a - resolution principle based on LMF.
第三部分:关于格值模态一阶逻辑系统及其归结原理的研究第n页西南交通大学博士研究生学位论文这一部分主要是在格值模态命题逻辑系统LMP队)中引进量词和谓词,建立格值模态一阶逻辑系统LMF(广并给出其语又解释和语法结构,证明了系统的可靠性和协调性;另外,为了判断公式的可满足性,定义了格值模态一阶公式的 Skolem标准型和体解释;在此基础上,对基于系统LMF的a一归结原理进行了初步探讨。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。