查询词典 factor model

We can found that China stock market is not completely weak effective by auto-correlation test, runs test, unit root test and variance ratio test. The TT-kyle model is derived from kyle model by adding weak effectiveness and irrational factor. This chapter describes impact of weak effectiveness and irrational factor on the trading volume and price. The fifth part analyses the relationship between the transaction duration and insider trading.

第四部分研究了市场有效性与内幕交易的关系，运用自相关性检验、游程检验、单位根检验、方差比检验等方法对我国证券市场的弱有效性进行验证，得出我国证券市场不完全弱有效的结论，在Kyle模型中加入弱有效性和非理性因素，提出了TT-kyle模型，分析弱有效性和非理性因素对内幕交易者的交易量和价格的影响，并提出了提高我国证券市场效率的相关对策建议。

It uses factor analysis method and dualistic relative comparative method to account the ability place of a loan enterprise in its industry, which can confirm the station in its industry better. By using time series model to forecast an enterprises cash flow in the future, we can measure the repayment ability of an enterprise. By using Logit model to account the probability of default for a loan enterprise, we can estimate the possibility of its default. From the industry risk , conduct risk,management lisk and repayment willing of a loan enterprise ,this paper analyses non-financial factor of enterprise.

运用因子分析法和二元相对比较法计算贷款企业在本行业中的财务能力排名，更好地确定其在本行业中的地位；运用时间序列模型预测企业未来的现金流量，从而测度贷款企业未来的还款能力；运用Logit模型计算贷款企业的违约概率，估计其违约的可能性；从贷款企业的行业风险、经营风险、管理风险、借款人还款意愿等方面对贷款企业的非财务因素进行分析。

In this thesis, several problems of time-dependent systems in various branches of physics are investigated by making use of the generalized invariant theory and the invariant-related unitary transformation formulation. The problems are given as follows:(1) Spin model and geometric phase factor in the fiber We investigate the fiber experiment performed by Chiao-Tomita and the Chiao-Wu theory concerning the geometric phase factor in the optical fiber, and then show that the investigation of the propagation of photons inside the noncoplanar optical fiber can be regarded as that of a second-quantization spin model.

本论文用推广的不变量理论和与不变量有关的幺正变换方法研究了一些物理分支中的几个含时系统问题：(1)自旋模型与光纤中光子几何相因子问题重新考察了Chiao-Tomita光纤实验和Chiao-Wu关于光纤中光子几何相因子的理论，证明了在非共面弯曲光纤中传播的光子运动问题实际上可以化为二次量子化含时自旋模型研究。

Next, regarding question two, because present uses the injection contraceptive the method to maintain this population the stability, moreover already did not have the individual to move away or the situation which poaches, for this reason we transform this populations stability to ask this population every years newborn baby quantity to subtract this year death individual the quantity differential value; Moreover from this population year quantity with this year the end of the years quantity differential value, when tends 0, namely thought that this community individual quantity is stable, thus the question stability problem transforms to ask simple targets optimization problems model building; Carries on using MATLAB to the model obtains, obtains, when did not consider when uncertainty factor influence must inject the medicine female animal quantity is 276 heads, but when had considered after twin and by duplicate injection these two uncertainty factor influence, obtains must inject the medicine female animal quantity is 352 heads, including 110 are by the duplicate injection.

其次，对于问题二由于现在采用注射避孕药的方法来维持该种群的稳定，而且已经没有个体被运走或被偷猎的情况，为此我们把该种群的稳定性转化为求该种群每年的新生幼仔的数量减去该年死亡个体的数量的差值；另外从该种群年头的数量与该年年底的数量的差值，当趋于0时，即认为该群落的个体数量是稳定的，从而把问题的稳定性问题转化为求单目标的最优化问题建立模型；利用MATLAB对模型进行求得，得出当不考虑不确定性因素影响时要注射药物的雌性动物数量为276头，而当考虑了双胞胎和被重复注射这两个不确定性因素影响后，得到要注射药物的雌性动物数量为352头，其中有110头是被重复注射的。

The effects of jet interaction on forces and moments are described by interaction amplification factor, and the algorithm to calculate the interaction amplification factor is presented, then the motion model and the dynamics model of interceptor are established according to the previous analysis.

根据大量参考文献的结论，分析了侧向喷流射入拦截弹外流的流场特征，以干扰放大因子来描述干扰效应对力和力矩的影响，给出了放大因子的计算方法，进一步建立了喷流侧向力和空气动力作用下的导弹运动学和动力学模型。

A 2D two phase horizontal fracture model was established when studying hydraulic fractures for the requirement of shallow reservoir stimulation in this block; and a 3D two phase model has been built for numerical simulation of a reservoir with five-spot pattern without considering vertical fracture flow. The impacts of horizontal fracture half length and flow conductivity on recovery factor and ultimate recovery factor are studied for some certain injection and production conditions. The parameters of hydraulic fracturing are optimized.

根据该区块浅层油层改造的实际需要，研究水力裂缝时建立两维两相的水平裂缝模型，不考虑裂缝垂直方向上流动，建立了五点井网条件下三维两相油藏数值模拟模型，研究了水平裂缝半长和导流能力对油井产量、注采条件下的采收率和最终采收率等指标的影响，优化了水平裂缝参数。

Improving vertical resolution for density curves is by means of restructuring the response from large and small spacing sondes and borehole effect correction factor and coherence factor are used. Form the principle of GR logging, calculate volumes in investigating areas taken by borehole, formation, up and low shoulder beds, along with distance between center of gravity of the four unit bodies and detector. Based on the above, the weighting function of each unit body to GR signal contributions are established, thus realizing processing of GR logs with high resolution. The resistivity logging model uses "resolution matching" method to improve the resolution of the logs. After the process, PNN model is made to recognize the oil-gas-water bed. Compared with BPNN, the net work is featured swiftness, accuracy and ease of practical application.

提高密度测井曲线垂直分辨率是通过对重新组合长、短源距探测器响应的算法来提高补偿密度曲线的垂直分辨率，并加入井眼影响校正因子和相关性因子；自然伽马测井模型从基本原理出发，扣除井的影响，计算井筒、地层及其上下围岩所占探测球域体积及其重心到探测器的距离，以此建立各单元体对伽马测井信号贡献的权函数，通过权函数逐层计算不同厚度地层条件下各的单元体权因子，实现自然伽马曲线高分辨率处理；电阻率校正模型应用&分配率匹配&模型，应用低分辨率曲线提高为高分辨率曲线：曲线校正后，利用常规测井资料并且结合校正后的密度、伽马、电阻率等三个对判断油水层有利的指标，通过概率神经网络模型识别储层流体性质，较以前的模型，不仅极大的提高识别正确率，同时与普通神经网络相比较，提高了网络的运行速度和实用性。

Based on both the strong-weak model and the strong-strong model, the instability caused by ions in equilibrium is simulated, some useful results are obtained. The results include the relation between instability growth rate and neutralization factor, the relation between instability threshold and neutralization factor, and the incoherent tune shift, the tune spread, the ion cloud distribution, the ion loss mechanism, as well as the ion accumulation limitation in the storage ring. With this understanding, we have carried out theoretical and experimental study for some ion clearing methods and their effects for the HLS ring. The minimum static clearing voltage is determined through calculating beam electric field and measuring ion current.

在上述基础上，我们对各种离子清洗的方法及清洗效果进行了理论和实验的研究：通过计算束流电场和测量清洗电极上的离子流来确定直流清洗电极所需的最小清洗电压；通过测量离子引起的频移来计算储存环的中性化系数；用模拟计算和实验测量证实了高频清洗能有效地克服储存环上离子俘获不稳定性；对由高频剔除系统形成的储存环部分束团填充模式下的离子俘获问题进行了初步研究，证实采用束团部分填充模式能在一定范围内克服离子俘获效应；并对各种离子清洗方法进行了比较。

Firstly, it makes statistical significant testing of extra earning in declaration term of new stock. Secondly, it sets up linearity regression model of one factor to explain how much extra earning is from dividend. Finally, it sets up linearity regression model of multi-factor founding on theory analyzing of the first chapter to explain how many factors influence extra earning.

首先对新股公告期的超常收益做统计显著性检验，然后建立一元线性叵归模型，说明超常收益有多少是来自于股利，最后在第一章理论分析的基础上建立多元线性回归模型，说明这种超常收益的影响因素。

In chapter three,we have derived a generalized dual London equation for the Abelian "electric" field A_μfrom the effective dual Abelian-Higgs model.The approximative result and the numerical simulation result as well as their figs were shown via solving the dual Abelian-Higgs model with different methods.Hereby the vortex solution of the chromo-electric field and the vortex energy density were also discussed.Finally,we have studied the dual Abelian-Higgs model with additional vacuum constant,and have unpuzzled the vacuum constant corresponding to the bag model.When the quark sources is introduced, the vacuum constant in the MIT bag model is proportional to the quartic of the monopole mass.

利用不同方法求解该方程，给出了该方程的近似结果和数值模拟结果，并分别对两种情形画出图像作了比较，据此还讨论了色电场的涡旋解及能量密度，最后讨论了含有附加真空常数的对偶阿贝尔-黑格斯模型并对应口袋模型给出了附加真空常数的物理解释，引入夸克源之后还预言麻省口袋模型中的真空常数正比于单极质量的四次方。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。