可讨论的
- 与 可讨论的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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It consists of the next three aspects: firstly, we study Murthys' open problem whether the augmented matrix is a Q0-matrix for an arbitary square matrix A , provide an affirmable answer to this problem , obtain the augmented matrix of a sufficient matrix is a sufficient matrix and prove the Graves algorithm can be used to solve linear complementarity problem with bisymmetry Po-matrices; Secondly, we study Murthys' conjecture about positive semidefinite matrices and provide some sufficient conditions such that a matrix is a positive semidefinite matrix, we also study Pang's conjecture , obtain two conditions when R0-matrices and Q-matrices are equivelent and some properties about E0 ∩ Q-matrices; Lastly, we give a counterexample to prove Danao's conjecture that if A is a Po-matrix, A ∈ E' A ∈ P1* is false, point out some mistakes of Murthys in [20] , obtain when n = 2 or 3, A ∈ E' A ∈ P1*, i.e.
本文分为三个部分,主要研究了线性互补问题的几个相关的公开问题以及猜想:(1)研究了Murthy等在[2]中提出的公开问题,即对任意的矩阵A,其扩充矩阵是否为Q_0-矩阵,给出了肯定的回答,得到充分矩阵的扩充矩阵是充分矩阵,并讨论了Graves算法,证明了若A是双对称的P_0-矩阵时,LCP可由Graves算法给出;(2)研究了Murthy等在[6]中提出关于半正定矩阵的猜想,给出了半正定矩阵的一些充分条件,并研究了Pang~-猜想,得到了只R_0-矩阵与Q-矩阵的二个等价条件,以及E_0∩Q-矩阵的一些性质;(3)研究了Danao在[25]中提出的Danao猜想,即,若A为P_0-矩阵,则,我们给出了反例证明了此猜想当n≥4时不成立,指出了Murthy等在[20]中的一些错误,得到n=2,3时,即[25]中定理3.2中A∈P_0的条件可以去掉。
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And then some ellipses that AUGR estimator is better than the OLS estimator and AUGL estimator is better than the OLS estimator are given, respectively.Second, the definition of the almost unbiased unified biased estimator is proposed. This definition includes the familiar almost unbiased estimators in literatures, and it is the unified expression of the familiar almost unbiased estimators. Followed the biased and variance are compared of AUUB estimator and the unified biased estimator, respectively. AUUB estimator has smaller bias than UB estimator and the variance of AUUB estimator is between the variance of UB estimator and 4 times of the variance of UB estimator. Finally the properties of AUUB estimator are discussed. The conclusion is gained that there are parameters made AUUB estimator is better than OLS estimator in terms of their mean square error. The sufficient and necessary condition that AUUB estimator is admissible is given. The ellipse is given that AUUB estimator is
然后给出了几乎无偏统一有偏估计的定义,该定义包括了文献中常见的几乎无偏估计,实现了常见几乎无偏估计的统一表达式;接下来我们比较了几乎无偏统一有偏估计与统一有偏估计的偏度与方差,得出了几乎无偏统一有偏估计比统一有偏估计有较小的偏度,几乎无偏统一有偏估计的方差介于统一有偏估计的方差与统一有偏估计的方差的四倍之间的结论;最后我们对统一有偏估计的主要性质作了讨论,证明了存在参数K,S使得几乎无偏统一有偏估计在均方误差意义下优于最小二乘估计的结论,给出了几乎无偏统一有偏估计为可容许估计的充要条件,还给出了在均方误差阵意义下几乎无偏统一有偏估计优于最小二乘估计的椭球。
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Based on the research results of Chaos theory, in this dissertation, it has made detailed analysis of the chaotic signal generator. Firstly, the characteristic and various detection methods of chaotic signal are recommended. Secondly, with the aid of software, such as MATLAB, PSPICE, EWB, etc, discussion of the process of generating chaotic signal proceeds. Through simulation, the output result of several kinds of chaotic circuit are analyzed and compared. Thirdly, aiming at Chuas chaotic circuit, through debugging, the impacts by components and parts in the circuit, such as operation amplifier, capacity, inductor, etc, has been further investigated. And then provides a new scheme to implement Lorenz chaotic system, the circuit design and analysis are presented in detail and it can be realized by the hardware of programmable arrays FPGA, the experimental results indicate that this scheme has the advantages of easy operation, flexible design and high efficiency. An application example in secure communications is also provided. Finally, through picking up the characteristic parameter-Lyapunov exponent of the Chaos we can analyze the performance of different chaotic signal generators.
本文在混沌理论研究成果的基础上,对混沌信号的产生做了详细的分析,涵盖以下内容:首先介绍了混沌的定义,混沌信号的基本特性和各种判别方法,特别是对简单的一维Logistic映射的硬件实现问题做了初步探索;其次对混沌信号的产生方法进行讨论,借助于MATLAB、PSPICE、EWB等仿真软件,对几种混沌电路输出的混沌信号进行了分析比较,并在此基础上针对典型三阶连续自治系统Chua's电路作进一步实验研究,通过混沌电路调试,深入研究电路中各元器件,特别是运算放大器、电容、电感等对混沌信号时域以及频谱的影响;再次研究连续混沌系统的数字化硬件产生,设计了Lorenz混沌电路在现场可编程门阵列FPGA上实现的新方案,在保密通信中的应用实验结果表明该方案具有操作简单、设计灵活、效率高等优点;最后针对不同混沌系统,采取不同算法,提取混沌特性参数Lyapunov指数,进而对不同的混沌信号发生器的性能进行了分析。
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This means that the understanding of agricultural activities is still an important element in understanding modern rurality.
乡村性是描述、判断乡村之所以为乡村的标准,过去许多研究倾向透过实证取径的指标测量,描述乡村性组成之元素,对这样的研究而言,农业生产仅是对乡村性探讨中的一个变项,在农业活动已然式微的今日乡村中,有些学者认为农业已失去在乡村性讨论上的重要性,然而本研究从社会再现的观点思考乡村性,认为乡村居民日常言语所透露出的概念、意象、符号可作为描绘乡村形象的依据,而乡村民众日常言语的表现,又受其生活经验、所接收资讯等的影响,对部分生活在乡村的居民而言,仍视农业为其最重要的生活经验,这说明了对农业活动的理解,仍是探讨乡村性一个重要的面向。
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1 The lowest, 10 the highestI mean let's not joke around!! An iverson shoes with great ankle support( think about the answer 5 and answer 6)?? come on give me a break!! well no doubt! ANSWER 10 must be one of the best ankle supporting shoe on the market right now!! First of all let's talk about how this shoe protects the ankle for a baller like you and me. The TPU plate which locates at back of yout ankle creats a secure fit that locks in your ankle so your foot will not move around like a pair of Chuck Tayler and with the additional inner bootie, its like heaven when you walk around with it !! YET the adjustable Pump system gives the shoes a big bonus by having air surrounding you foot ( air bolloon??) so your ankle will unlikely to rollover!!
我必须很认真的告诉您,您能想像艾佛森的个人鞋款有完美的踝部支撑吗(想一想 answer 5 and answer 6),别开玩笑了吧,但是无庸置疑的,ANSWER 10 绝对是目前市面上拥有最好的踝部支撑的鞋款之一,先让我们讨论一下这双鞋是怎样保护一个像您跟我一样篮球员的脚踝的,坐落在脚踝正后方的 TPU plate 让您感觉您的脚踝就好像是被安全的锁住了一样,让您的脚踝不会在鞋内摇来摇去的(某 converse 鞋款),还有,无缝线的内衬让您穿上它走来走去之后,就感觉好像是先开了套房再在水床上天堂一样,还有可调整式的 Pump system 给予了这双鞋大大的加分因为当您穿著它走来走去时您一定可以感受到 air 紧紧的包住了您的脚踝,这样一来您的脚踝就更不会轻易的翻船了。
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The results of the present research are as follows, The correlation between physico-chemical properties of organic compounds and their competitive power was studied, and it was indicated that organic compounds preferable to form H-bonding with organic matter of sorbents have stronger competitive power; Sorption behaviors of ionizable organic compounds in different species and their competitive power were examined, and the results showed that phenols and carbonxylic acids with benzyl circle have much stronger competitive power in molecular species than in ionized species, because negative charges of anionic forms can depressed their adsorption on the surface of the sediment; in contrast, organic bases such as aniline and p-chloroaniline show weaker competitive power in molecular species than in ionized species, and this is because both species of the organic bases could adsorb strongly onto the sediment; there is a correlation between competitive power of organic pollutants in multi-solute systems and their sorption isotherm nonlinearity in single-solute systems, and organic compounds whose sorption isotherms is linear in single-solute systems hardly have competitive power in multi-solute systems; Competitive sorption effects in more than two-solutes systems was studied, and it was exhibited that mixture of two cosolutes each of which could suppress sorption of nominal solute onto the sediment had synergistically competitive sorption effect on the nominal solute; A method about incorporating sorption/desorption of organic pollutants into river water quality model was developed, and discussion about degree of sorption/desorption effect on model prediction for different organic compounds was made, which will provide theoretical basis and practical processes for setting up more accurate water quality model.
论文主要取得了以下研究成果。(1)有机化合物的吸附竞争能力与其物化性质具有相关性,易与沉积物有机质形成氢键的化合物其竞争能力也比较强;(2)可离子化有机化合物的吸附竞争能力与其存在形态有关。酚类、含苯环的羧酸类化合物,其离子态的吸附竞争能力远小于分子态,其机理为有机酸阴离子所带的负电荷抑制了表面吸附能力,主要发生分配作用;而苯胺类化合物,其离子态和分子态都表现出显著的竞争能力,而且离子态的竞争能力略强于分子态,原因在于有机碱阳离子所带的正电荷促进了其表面吸附能力;有机化合物竞争能力的强弱与其单组分吸附等温线的非线性程度具有一定的相关性,吸附等温线近似为线性的化合物没有或只具有微弱的竞争能力;(3)对目标有机化合物的吸附具有竞争效应的有机化合物混合后,将对目标有机化合物的吸附产生协同竞争效应;(4)以京杭运河为例,率先提出了将有机污染物的吸附/脱附作用及水文水力参数耦合到水质模型中的方法,并讨论了吸附/脱附作用对不同有机污染物预测模型的影响,为建立更准确的水质模型及进行更客观的风险和生态评估提供了参考依据。
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How when we are in a Doubt or Hesitation, whether to go this Way, or that Way, a secret Hint shall direct us this Way, when we intended to go that Way; nay, when Sense, our own Inclination, and perhaps Business has call'd to go the other Way, yet a strange Impression upon the Mind, from we know not what Springs, and by we know not what Power, shall over-rule us to go this Way; and it shall afterwards appear, that had we gone that Way which we should have gone, and even to our Imagination ought to have gone, we should have been ruin'd and lost: Upon these, and many like Reflections, I afterwards made it a certain Rule with me, That whenever I found those secret Hints, or pressings of my Mind, to doing, or not doing any Thing that presented; or to going this Way, or that Way, I never fail'd to obey the secret Dictate; though I knew no other Reason for it, than that such a Pressure, or such a Hint hung upon my Mind: I could give many Examples of the Success of this Conduct in the Course of my Life; but more especially in the latter Part of my inhabiting this unhappy Island; besides many Occasions which it is very likely I might have taken Notice of, if I had seen with the same Eyes then, that I saw with now: But 'tis never too late to be wise; and I cannot but advise all considering Men, whose Lives are attended with such extraordinary Incidents as mine, or even though not so extraordinary, not to slight such secret Intimations of Providence, let them come from what invisible Intelligence they will, that' I shall not discuss, and perhaps cannot account for; but certainly they are a Proof of the Converse of Spirits, and the secret Communication between those embody'd, and those unembody'd; and such a Proof as can never be withstood: Of which I shall have Occasion to give some very remarkable Instances, in the Remainder of my solitary Residence in this dismal Place.
有时,我们会陷入无所适从的境地,踌躇不定不知道该走哪条路才好。这时候,内心常常会出现一种暗示,指示我们走这条路,虽然我们原来想走的是那条路。不仅如此,有时我们的感觉、愿望、或我们的任务明明要我们走那条路,可是心里忽然灵机一动,要我们走这条路;这种灵机也不知道是从哪里来的,也不知道出自什么影响,可就是压倒了原来的一切感觉和愿望,使我们走这条路。结果,后来的事实证明,如果我们当初走了我们自己想走的路,或者走了我们心目中认为应该走的路,我们则早已陷于万劫不复的境地。反复思索之后,我自己定下了一条规矩:每当自己心里出现这种神秘的暗示或冲动,指示我应做什么或不应做什么,我就坚决服从这种神秘的指示,尽管我不知道为什么该这么做或该这么走,我知道的只是心里的这种暗示或冲动。在我一生中,可以找出许许多多这样的例子,由于我遵循了这种暗示或冲动而获得了成功,尤其是我流落到这个倒霉的荒岛上以后的生活,更证明了这一点。此外还有许多例子。当时我若能用现在的眼光去看待,是一定会意识到的。但是,世上有许多道理,只要有一天能大彻大悟,就不算太晚。我奉劝那些三思而后行的人,如果在他们的生活里,也像我一样充满了种种出乎寻常的变故,或者即使没有什么出乎寻常的变故,都千万不要忽视这种上天的启示,不管这种启示是什么看不见的神明发出的。关于这一点,我不准备在这里讨论,也无法加以阐明。但这种启示至少可以证明,精神与精神之间是可以交往的,有形的事物和无形的事物之间是有神秘的沟通的。而且,这种证明是永远无法推翻的。关于这一点,我将用我后半生的孤寂生活中一些很重要的例子加以证明。
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And a new mechanism is provided to store the data of OWL in relational database, the hierarchy structures of classes and properties defined in the OWL are also kept through views of the database system. 2、 Proposed a new method of using Finite State Machine and execution tag tree to describe the excution logic of existing grid service and the goal service specified by users, using Deterministic Propositional Dynamic Logic and FSM to determine the composable of goal service and make the composition plan. The computation complex is also discussed 3、 Designed some algorithms to compose existing grid services according to user requirement.
同时提出了一种新的机制,使用关系型数据库来存储OWL定义的实体,使用视图表示OWL中定义的类之间和属性之间的层次关系; 2、提出了使用有限状态自动机和执行标记树,表示网格系统中存在的网格服务和代表用户需求的目标服务的执行概要和逻辑,结合确定性动态命题逻辑,研究了目标服务的可组合性和自动组合模型,并讨论了组合模型的计算复杂度; 3、设计了一种根据用户需求来组合已存在的网格服务的算法。
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The complexity of bodywork decides variety of it's error. The station and primary factor which cause error is inconstant change and using correlation analysis can find out the primary factor. With an project given, the theory of correlation analysis for dimension variation of bodywork is discussed through correlation analysis and the layer structure of the bodywork,the state in which the error happened can be found out. How to use eigenva...
车体装焊的复杂性决定了误差产生的多因素性,车体制造过程中产生误差的工位和主要因素是不断变化的,采用相关性分析方法从众多的误差根源中准确地发现最主要的误差源;结合工程实践,论述了车体尺寸波动的相关性分析方法的原理,根据测量点的相关性分析和车体焊接工艺的层次结构,可准确地找到产生车体尺寸误差的工位;讨论了如何利用相关系数矩阵的特征值和相应的特征向量判断尺寸波动的模式,指出测量数据的波动主要按最大特征值所对应的特征向量方式波动,引起这种波动的原因是车体误差产生的主要原因,应重点采取措施加以控制;提出了应用计算机进行相关性分析的解决方案。
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By defining several localindices which can be easily calculated from these ground-state wavefunctions, we first succeeded in explaining bond lengths, orientation ofelectrophilic aromatic substitution, and local aromaticity of these benzenoidhydrocarbons within the VB theory. Moreover, the energy splittings betweenthe ground state and first excited state are applied to correlate with theiroverall aromatic characters, the results are also in good agreement withrelated predictions from MO theory.
通过定义一些可由基态波函数直接计算的局域指标,首次在VB模型下成功地解释了苯型烃的键长、亲电取代反应的方向及局域芳香性,并用基态与第一激发态的能量差讨论了这些分子的整体芳香性,得到了与分子轨道理论的预测基本平行的结果。
- 推荐网络例句
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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
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Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
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You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?