This paper introduces the importance of seawater simulation in virtual reality field . for the reason that the seawater simulating technologies have some disadvantages , and 1f ~ noise is applied and the model is proposed subsequently to simulate seawater motions . the natural motions of seawater in the wind can be simulated on the condition that the wind force , the main factor influencing seawater motions , is controlled properly by changing some certain parameters 分析了海水仿真在虚拟现实技术中的地位,针对现有海水仿真技术的不足将风噪声模型应用于虚拟现实海水仿真技术中,提出了1f噪声的海水运动模型,可以用改变参数的方式来选择影响海水动态性能的重要因素风强,能表现出海水在风中运动的基本特性。
However , for the reasons that enterprise ’ s credit management system is in low degree and enterprise ’ s credit controlling system is not perfect and so on , the problems on enterprises losing credits have been more and more serious . behaviors of losing credits have become one of the most serious barriers hinder enterprises from normal business operation , and caught big troubles in the development of the market economy 在对国内外企业信用管理体系进行比较分析的基础上,充分借鉴发达国家先进的企业信用管理经验,重点对我国企业信用管理体系运行机制的三大难点问题:企业信用征信模式及管理、企业信用综合评估体系和企业失信惩罚机制等进行了深入探讨。
However , we are in critical need of a course which will teach students knowledge and skills on how to learn efficiently themselves and give guidance for students in improving learning ability and efficiency under a multimedia - learning and network - study circumstance . college students are particularly concerned because they are comparatively passive in learning a subject themselves for the reason that they are the generation resulting from an exam - oriented education 然而，目前我国从小学到大学的众多课程中，缺少一门课程，专门教学生关于学习的知识和技能，具体指导和帮助学生提高自身的学习能力与学习效率，提高在多媒体、网络环境下高效学习与发展的能力，致使目前中小学生乃至很多大学生，只会应付考试而不会学习，在自主化较强的大学学习生活中显得十分被动。
However , the results of these predictions are not very successful for the reason that the transportation quantity does not equal the demand . the actual transportation is the organic match of transportation demand and supply , as well as the partial equilibrium of the demand and supply under specific transportation situations that is not only the quantitative equilibrium but also the qualitative equilibrium 究其原因，在于运输量并不等同于需求量，它是运输需求与运输供给的有机统一，是特定运输环境下供给与需求的局部平衡，而这种平衡不仅仅是量上的平衡，更是质上的平衡。
Recently , more and more attention has been paid to the credibility deficiency of listed companies for the reason that it will not only do damage to investor but also endanger the health development of stock market directly . this thesis is devoted to the study of the credibility deficiency of listed companies by analysis of five typical cases 上市公司信用缺失不仅给投资者造成损害，还将直接危害到证券市场的健康发展，近一段时间，上市公司信用缺失问题越来越成为中国证券市场关注的热点，本文通过中国上市公司信用缺失5个典型案例的分析，分8个章节对上市公司信用缺失问题进行探讨。
For the reason that the start of software industry was later than that in western countries , and the neglect of the property right , the valuation industry of our country set to lately and grew slowly . the research of software valuation fell behind western country greatly 由于我国的计算机软件行业的起步较晚,而且在市场经济发展初期,人们对于商品交易和产权交易的认识不够,我国评估行业起步较晚且发展缓慢,特别是作为资产评估难点的无形资产评估和软件评估,其研究和应用更是远远落后于美国等西方发达国家。
Phylogeny analysis is performed with phylip software package and encoding sequence of bdnf gene . the phylogeny trees have been drawn with three different methods ( maximum parsimony method , genetic distance method and maximum likelihood method ) , respectively . the analysis outcomes are not all consistent for the reason that it is closely related to the selected methods and the conservative level of the sequences 采用不同的统计学分析方法，最大简约法( maximumparsimonymethod ) 、最大似然法( maximumlikelihoodmethod )和遗传距离法( geneticdistancemethod ) ，得到了物种系统发育进化树，但拓扑结构并不完全一致，这是可能是因为分子系统学研究与采用的分析方法和所选基因的保守程度即作为分子标记的可信度密切相关。
For the reason that it ' s difficult to identify indistinct license plate chinese characters through a conventional measure to generic print character , the method of fractal dimension is proposed in the character recognition chapter , and is used as the feature values of chinese characters by which to fulfill the target through the training of b - p neural network 针对模糊车牌汉字难以识别的问题，本文提出了基于分形维特征的神经网络识别算法，应用汉字图像分形特征值训练b - p神经网络，仿真结果表明该算法对模糊汉字的识别具有很好的效果。
In the positive analysis , on the basis of real situation of jiangsu ' s economic development and in the use of former theory and models , it is pointed out that jiangsu ' s regional economic distance from 1978 to 2001 is not converged mainly due to the increasingly widened economic distance in the northern , central and southern areas of jiangsu province , especially for the reason that proper and suitable clusters of industry have not been discovered in the northern area . considering jiangsu , in the clusters of industry like transportation , finance , real estate and automobiles , real estate and automobiles are the motivation of regional macro - economic development while transportation and finance serve as the base . as to the motivation , real estate is more active than automobiles ; transportation plays as an obvious basic role ; finance vaguely supports automobiles but is important to the development of real estate 在实证分析部分，运用已建立的理论和模型，结合江苏经济发展的实际情况进行系统研究，并认为：江苏省地区经济差距在1978 - 2001年间并不收敛，主要根源在于苏北、苏中、苏南三地区经济差距逐步拉大，尤其是苏北地区尚未找到真正适合自身发展的产业簇群；就江苏而言，在交通、金融、房地产和汽车这一产业簇群中，房地产业和汽车业是拉动地区宏观经济增长的主要动力，交通运输业和金融业起基础作用，而具体从拉动作用看，房地产业优于汽车业，同时，交通运输业的基础作用明显，金融业对汽车业的支撑作用不显著，而金融对房地产业的快速发展至关重要。
