基于内容的图像Hash算法及其性能评估

介绍了一个有效的图像鉴别系统设计应具备的4种特征：鲁棒性、易碎性、安全性和篡改可定位性，综述主要的图像内容hash算法以及常用的4种信息安全机制，进而分析和讨论了现有算法所存在的性能折中和安全问题，并对目前流行的图像篡改检测算法通过实验进行深入评估和分析，实验表明与hash属性相关的4种性能是互相冲突的：鲁棒性要求在小的扰动下保持良好的健壮性，易碎性则要求尽可能降低感知不相似输入的碰撞可能性，安全性则可能阻止鲁棒性的获得，从安全的角度看易碎性和安全性是非常重要的，一个hash算法应通过某种程度的性能折中来实现上述互为冲突的目标。     

电信业务计算机集成管理系统的设计和实现

提出了用最小独立事件组合成服务事件队列的概念。采用控制流程调度的方法，分析和设计了电信业务计算机集成管理系统，还提出了信息管理系统中正确性、灵活性、安全性和异常事件的处理方法，并通过一个实例介绍系统的网络结构、模块和功能。     

从跨文化交际视角论方言英译的功能对等——以《儒林外史》杨译本〈The Scholars〉为例

以尤金·奈达功能对等理论为指导，从跨文化交际视角，结合吴地方言所包含的人物称谓、风土人情、名物制度的文化功能，分析《儒林外史》杨译本中的方言翻译如何通过归化、异化和折中翻译法来实现文化功能对等。     

供电系统地震安全分析与负荷控制研究

对电力系统的地震安全性分析与负荷控制问题进行了深入研究，建立了系统正常运行情况下各支路的负荷电流的评价准则和电力系统的网络分析模型，分析了传统潮流分析方法的优、缺点．利用灵敏度分析方法研究了电力系统的安全性，并提出了系统过负荷时的控制方法．该方法以灵敏度分析的状态参量来对系统当前状态进行判断，然后根据判断的结果提出相应的控制措施．该算法能在较短的时间内提出供电控制措施，当系统受到地震破坏后，能给系统运行人员及时提供调度方案，以便尽快恢复电力供应．算例验证了该方法的正确性．该工作可为震后电力系统负荷快速调整、震区供电系统较快恢复电力供应，减少供电工程系统的损失提供理论分析依据．     

一种航空电子系统体系结构错误行为验证方法

针对航空电子系统体系结构安全性评估过程中,组件故障影响分析,正确性难以保证的问题,提出了一种基于模型的体系结构错误行为描述和验证方法。首先,针对系统功能需求和安全性目标,建立体系结构模型;然后,采用错误模型附件描述组件的错误行为和导致的故障影响,并使用层次自动机作为中间状态,通过转换算法实现体系结构错误行为模型的形式化描述;最后,通过模型检测实现安全性需求的正确性验证。实例分析表明,该方法能够验证体系结构设计的组件错误影响和应对措施是否满足系统的安全性目标,提升安全性评估的准确性和效率。     

通用异步收发器TL16C554的分析

TLl6C554是德州仪器公司生产的异步串口芯片，具有4路16C550的功能．主要介绍了TLl6C554的性能及其工作原理，同时采用VerilogHDL作为硬件功能描述方式进行分析．可编程通用异步收发器模块的实现以及仿真实验的结果验证了设计的正确性．     

OLE技术在MIS中的应用

跟踪分析生成图形应用程序Ｇｅｎｇｒａｐｈ中的更新图形对象子功能Ｕｐｄａｔｅｇｒｐｈ，给出在ＭＩＳ中用Ｕｐｄａｔｅｇｒａｐｈ增加图形功能的方法．该方法具有方便用户操作、提高系统安全性和系统效率等优点．     

电力市场输出电阻塞管理问题的数学模型

就全国大学生数学建模竞赛2004B电力市场的输电阻塞管理问题，利用多元线性回归分析，给出了各线路上有功潮流关于各发电机组出力的近似表达式；通过引入阻塞费用补偿价格因子，给出了阻塞费用计算公式；按照安全性、经济性目标，建立了输电阻塞管理问题的规划数学模型；对利用MATLAB优化工具箱求解的结果进行了分析与检验，验证了所建模型及所提算清的正确性和有效性．     

基于椭圆曲线密码体制的前向安全代理签名

在代理签名、椭圆曲线密码体制和前向安全签名的基础上，提出一种基于椭圆密码体制的前向安全代理签名方案，保证了系统在泄露密钥（或撤销密钥）后以前所做签名的有效性问题，并讨论其方案的正确性和安全性．     

基于ASP．NET的Web评教管理信息系统的设计与实现

文章分析设计了基于ASP．NET技术的Web评教管理信息系统的整体架构和功能结构．深入探讨了应用ASP．NET实现数据库高效访问的方法，并给出了实现系统的安全性措施。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

The Analects and the Moment in Peking——The influence of a Confucian education system on the personality formation,the way of thinking and the fate of the main characters

0.Preface China has long been boasting of its colorful and immense culture which comprises of Taoism,Confucianism and Buddhism.The interwoven influence among the religions on Chinese way of thinking,on the nation＇s behavior in their social life throughout the long history is beyond list.