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The supporting technologies of network information security are summarized. The unitive authentication systems existing are analyzed in this paper; their virtues and shortcomings are discussed.2. About the distributed peculiarities of allied resource, the concept of alliance grid is established. The access control model of alliance grid is established by directive ideas of access control security of alliance grid. AG-RBAC model is set up in the basic of common RBAC, interbedded relations between roles are set forth.

针对制造联盟企业资源分布式的特点，提出了联盟网格的概念；根据联盟网格安全访问控制的指导思想，提出了联盟网格访问控制模型；在一般RBAC模型的基础上提出了基于角色的联盟网格访问控制模型，清晰的表述了角色之间的层次关系；初步分析了AG-RBAC的实现模式，重点讨论了角色定义和权限配置的实现方法。

2 Product costs are also called inventoriable costs because they are assigned to manufactured goods that are inventoried until a later period, when the products are sold.

2-2生产成本，也称为inventoriable成本，因为它们被分配到制造品都清点，直到后期，当产品的销售。

Although most workers have found that samples containing ionizable components usually are best separated with mobile phases that have a pH less than or equal to 3 , some separations may be impossible at a low pH because components of the sample are unstable at a low pH; protonated basic compounds are eluted too soon; and required band spacings are unobtainable.

尽管许多工作者发现含有离子化组分的样品在流动相pH值低于或等于3的时候有最佳的分离，但许多样品不可能在低pH下分离，因为样品中组分在低PH下不稳定、质子化的生物碱洗脱太快、和不能达到要求的峰间距。

Firstly, the sectional data from 27 companies in communications and transportation industry, which are listed before 1999, are linearly regressed. We find their capital structure and firm performance are irrelated significantly. Then the section data are quadricly regressed, but the result is also disillusionary, which indicates that the capital structure of listed companies has not the best range only with the sectional data from 1999 to 2003. Finally, in allusion to the problems in the securities market and illogicality of the capital structure, we put forward some methods to optimize the capital structure for listed companies from four facts.

文章首先对交通运输仓储行业1999年以前上市的27家公司的截面数据进行线性回归，发现在分析时段1999年至2003年，样本公司的净资产收益率和单位经济增加值与资产负债率之间线性不相关；然后文章又对该行业上市公司的截面数据进行二次函数回归，同样也没有得到令人满意的结果，这说明仅就1999年至2003年五年的截面数据而言，上市公司资本结构不存在最优区间；最后，文章对我国证券市场存在的问题以及该行业上市公司资本结构的不合理性提出了改进的设想，并从四个方面提出了优化我国上市公司资本结构的建议。

There are more than 15,000,000mu plowlands in Ningxia, 2.5mu per capita; The lands in Ningxia Plains are fertile, Huanghe River passes through Ningxia for 397km, which provides convenience for irrigation, we have over 6,000,000mu irrigable high yields, it is one of the four irrigated area and 12 significant commodity grain production bases in China; Besides, there are plenty areas of uncultivated lands waiting for reclamation, one of 8 provinces in china which holds thousands arable land; the beef and mutton which are Islamic Muslim, and wolfberry, the grapefruit which can planted for making red wine, watermelon with Si and sand, potato, liquorice, and high quality of rice, etc.

第三，旅游资源丰富而独特，既有边塞风光的雄浑，又有江南景色的秀丽，被称为&中国西北的盆景&，中国10大类95种基本旅游资源中，宁夏就占有8类46种，自然风光旅游热线有沙坡头、沙湖、青铜峡、六盘山、星海湖等，历史人文景观有西夏王陵、华夏西部影视城、以及回族伊斯兰风情等。

F, architectural style is to Cao Wei during the period of architectural styles on the basis, thus making a name / f,""汉风.contiouos the door of a large Brown Wall carving is members of the three Kingdoms period liubei and thought" Dongfang hero of the historical allusions," in the lobby of the right side is named " hero Pavilion " themselves mainly to providing customers with buffet breakfast, utencils, bars and other services, which could accommodate 60---90 people left and right; the left hand side is named " are the youyan tanghang isogenous sctudy diningcn," can accommodate more than 100 people at the same time, mainly to provide you with these dishes, Cantonese, peasant cuisine in a variety of cuisine, mainly as a zero.the first floor and procudtion 30per epidifferentiability between the different styles of gatherings, you can provide you with the wrong way of tea, catering, services, and 汉风/ f, there are various specifications of the Conference room, there are a number of accommodating more than 200 people of muiti, there are dozens of people can fit in, you can meet your different meetings and hospitality requirements.

汉风楼的建筑风格是以曹魏时期的建筑风格为基础，故起名&汉风楼&。迎门的大型古铜色的壁雕就是大家所熟知的三国时期刘备与曹操&青梅煮酒论英雄&的历史典故，大厅右侧是命名为&英雄阁&的西餐厅，主要为顾客提供自助早餐、西餐、酒吧等服务，可容纳60---90人左右；左手边是命名为&许都宴堂&的中餐厅，可容纳100多人同时就餐，主要为您提供湘菜、粤菜、农家菜等多种菜系，主要为散客提供零点服务。一楼和二楼有30余间风格不同的贵宾厅房，可以为您提供餐饮、茶艺、棋牌等服务，而且汉风楼还有各种规格的会议室多间，有同时容纳200多人的多功能厅，还有可以容纳几十人的中、小型会议室，可以满足您不同的会议及接待需求。

A special tribe called Kayan is known for wearing rings around their neck. Kayan women often say that their purpose for wearing the rings is cultural identity. The rings are rarely removed since they started wearing them around the age of five. The coiling and uncoiling is a long procedure. They are usually only removed to be replaced by a new or longer set of coils. To set the record straight, women do not suffocate if the rings are removed, though the muscles covered by them are weakened. Many women have removed the rings for medical examinations. Contrary to popular belief, the neck is not actually lengthened. Each coil is replaced with longer coils as the weight of the brass pushes the collar bone down and compresses the rib cage.

在清迈有一个少数民族称做Kayan族，当时为了逃难而来到泰国西北边界的媚洪顺，后来不知为何这支民族的妇女认为长颈才能显示出女人的美丽，因此她们从5岁起就在母亲的协助下在颈子上架起了铜圈，到了10岁开始每年再多加一圈直到25岁为止，到了25岁这些铜圈更可高达25圈重达5至10公斤；铜容易生绿锈，要时常擦拭，而且铜很沉，会将肩膀压塌，所谓的长颈并不是因为颈子变长，而是因为钢圈的重量长期压住锁骨和肋骨，使得脖子看起来变长了。

To give consideration to both validity and reliability, six combinations are recommended when differentially expressed genes are less, RMA+fold-change, RMA+ SAM, RMA+ limma, PDNN+ fold-change, PDNN+SAM, and PDNN+limma. Three combinations are recommended when differentially expressed genes are more, dChip+ fold-change, dChip+SAM, and dChip+limma.

若同时注重信度与效度，我们推荐几种方法组合：当表现量差异基因个数少时，推荐RMA+fold-change、RMA+SAM、RMA+limma、PDNN+ fold-change、PDNN+SAM与PDNN+limma此六种组合；而当表现量差异基因个数多时，则推荐dChip+fold-change、dChip+SAM与dChip+limma此三种组合。

This contributes to the rigidity of the bearing and a precise radial guidance of the shaft. For special applications, full-complement cylindrical roller bearings are employed. The cylindrical roller bearing designs are shown in Figures 1.20 and 1.21.The designs of cylindrical roller bearings are distinguished by the arrangement of the lips. Design NU (Figure 1.21b) has two lips on the outer ring, the inner ring being lipless. In design N (Figure 1.21a), the inner ring has two lips, the outer ring has none. Cylindrical roller bearings of designs NU and N are applied as floating bearings because the rollers can freely shift on the lipless ring in the axial direction. Cylindrical roller bearings NJ (Figure 1.20) have two lips on the outer ring and one on the inner ring; they can take up axial forces in one direction. Design NUP (Figure 1.21d) is installed as a locating bearing to sustain frequently reversing axial forces.

这可以提高轴承的刚度，和主轴精密的径向引导，对于特别的运用，密排的圆柱滚子轴承被运用，圆柱轴承的图样在图。20和1.21展示圆柱滚子轴承图样由挡边的不知来区分，图样NU(图1.21b)在外圈有两个挡边，内圈无挡边，在图样N中内圈有两个挡边，外圈无挡边，图样NU和U所示的圆柱滚子轴承可制作浮动轴承因为滚子能够在轴向无挡边环上自由的移动，圆柱滚子轴承NG在外圈上有两个挡边，内圈上有一个，它们能够在某个方向上承受轴向力，图样NUP（图1.21d）被用来安装在一个保持经常扭转轴向力的固定轴承上。

In order to overcome the defect of traditional methods and to find a new simply and effective time-domain method to eliminate the influence of boundary reflection. The main contents of studies and achievements are as follows: The liquefiable saturated sand dynamic character researches are conducted by means of the resonant column test and the dynamic tri-axial test; The undrain dynamic relationship between stress and strain, the damping ratio, saturated sand liquefaction mechanism, laboratory liquefaction standard, the effective factors of liquefaction are considered in laboratory. Liquefaction strength parameters used in element numerical simulation are obtained.

为克服传统方法存在的问题，寻求一种简单有效、能消除截断边界反射影响的时域有限元方法，本文主要开展了如下研究工作：对工程场地土体进行了标准贯入、静力触探、剪切波速等现场原位试验、室内动三轴试验以及共振柱试验，针对研究区域内可液化的饱和土进行了动力特性试验研究，分析了饱和土体的不排水动应力～应变关系和阻尼特性；对研究区域内的饱和砂土的液化机理，室内试验液化判别标准及影响饱和砂土液化的诸多因素进行了研究，得出了工程场地土体的抗液化强度指标等有限元模拟所需参数。

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。

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。