新型合金代铬刷镀层的组织及强化机理的研究

采用Ｘ射线衍射仪，透射电镜和扫描隧道显微镜等手段对新型代铬镀层（Ｎｉ－Ｆｅ－Ｗ－Ｐ－Ｓ）相结构及组织进行了研究，并初步探讨了镀层的强化机理。研究表明，Ｎｉ－Ｆｅ－Ｗ－Ｐ－Ｓ合金镀层的组织是由含Ｆｅ、Ｗ、Ｐ、Ｓ的镍基固溶体和在其上弥散分布的金属间化合物Ｎｉ_３Ｆｅ所组成，镍基固溶体处于非晶和微晶的混合状态，合金镀层的镀态硬度为ＨＶ７００～７５０，在３００℃退火时。硬度达到最大值ＨＶ９００～９５０，其强化机理主要是微晶的晶界强化和Ｎｉ_３Ｆｅ的弥散强化。     

多路红外防盗报警器

介绍一种利用热释红外线传感器探头作为探测器的多路防盗报警器.该报警器能够自动完成交直流供电转换,具有灵敏度高、电压适用范围宽、准确可靠等特点,并配有多种声光报警方式.给出了该报警器的基本原理和方框图。     

Role of Epstein-Barr virus in fine-needle aspirates of metastatic neck nodes in the diagnosis of nasopharyngeal carcinoma

The crystal structure of the peptide Boc-Phe-Val-OMe determined by X-ray diffraction methods is reported in this paper. The crystals grown from aqueous methanol are orthorhombic, space group P2(1)2(1)2(1),a = 11.843(2), b = 21.493(4), c = 26.676(4) A3 and V = 6790 A3. Data were collected on a CAD4 diffractometer using MoK alpha radiation (lambda = 0.7107 A) up to Bragg angle theta = 26 degrees. The structure was solved by direct methods and refined by a least-squares procedure to an R value of 6.8% for 3288 observed reflections. There are three crystal-lographically independent peptide molecules in the asymmetric unit. All the three molecules exhibit extended conformation. The sidechain of the Val2 residue shows two different conformations. The conformation of the peptide Boc-Phe-Val-OMe is compared with the conformation of Ac-delta Phe-Val-OH. It is observed that while Boc-Phe-Val-OMe exhibits an extended conformation, Ac-delta Phe-Val-OH shows a folded conformation. The results of this comparison highlight the conformation constraining property of the delta Phe residue. Interestingly, even though Boc-Phe-Val-OMe and Ac-delta Phe-Val-OH are conformationally different, they exhibit similar packing patterns in the solid state.     

用面向对象编程实现问题求解自动化

本文从面向对象方法基本原理和面向对象编程的技术特征出发，阐明所建应用软件系统中的对象，类及相应类层次结构和类组合结构，使系统具有很强的表现真空世界复杂系统结构的能力，系统通过消息传递在程序执行中实现对操作的调用机制，使之在面向用户问题选择和执行求解策略方面有很强的适应性，这一点对于强调人－机交互和解题协作的智能决策支持系统设计至关重要，文章给出了用Ｃ＋＋实现的模型对象系统及消息传递机制。     

A formal model for the interoperability of service clouds

Large-scale service-oriented computing is based on the idea that services from various servers are combined into one distributed application. Referring to a collection of services on one server as a ??service cloud??, the problem investigated in this paper is to define formal high-level specifications of such distributed applications and to enable the location of suitable services for them. Based on the language-independent model of Abstract State Services (AS²s), which serves as a universal integrated model for data and software as services, we extend AS²s by high-level action schemes called ??plots?? as a means to specify permitted sequences of service operations. On these grounds, we develop a model for service mediators, that is, specifications of composed services in which service slots have to be filled by actual services, and investigate matching conditions for slots of mediators and services. For a services to match a slot in a mediator, a (generalised) projection of the mediator must comply with the plot of the service. Furthermore, the service must be semantically adequate, which requires the use of a service ontology.     

山东智慧旅游研究

文章对山东旅游行业的发展现状进行了调查、归纳和总结,提出了山东智慧旅游发展的思路和重点,并从山东旅游行业四个主要应用群体（旅游管理部门、景区、酒店和旅行社）出发,提出了山东智慧旅游解决方案。     

带以太网接口的GSM无线数据传输系统设计与实现

较为全面地介绍了当前远程监控系统的应用现状,并对现有传输系统的特点进行了分析和研究。在此基础上,提出了适用于远程监控系统的、基于GSM的无线数据传输系统的总体架构及设计方案,详细介绍了带有以太网接口的、基于GSM的无线数据传输系统的硬件电路与软件设计与实现方法。该系统适用于各种远程监测监控系统,对提高远程监控的数据传输效率和降低监控系统的运营成本具有重要意义。     

基于SNS的网络挖掘系统研究

介绍网络挖掘系统的功能模型及其采用的体系结构．并重点阐述系统采用的社团发现技术、文本提取和文本分类等关键技术,并对存在的问题进行分析和总结。     

光催化降解废气过程中紫外辐射照度模拟和优化

为在光催化设计中合理布置紫外灯,减少光在传输过程中的损失,概括总结径向辐射模型、多点源叠加近似辐射模型和离散坐标辐射模型等3种经典的紫外辐射物理模型;基于离散坐标辐射模型模拟某公司生产的光催化氧化废气处理装置的紫外辐射照度;通过调整灯管布置距离改变光强分布,并拟合光催化单元和光催化网表面的平均紫外辐射照度随灯管布置距离变化曲线.结果表明,距离参数在55～65 mm时,该光催化反应装置的光能利用率较好;紫外灯的合理布置可有效提高光能利用率.     

高职计算机文化分专业分层次教学的实践与思考

指出了高职计算机文化课程教学面临的诸多问题,这些问题的存在严重制约了课程教学效果的提高.为此,在深入企业调研和对教学对象调查的基础上,结合各专业类别特点及其对计算机基本操作技能的不同需求,选取不同专业的班级作为研究对象,采用“横向分专业,纵向分层次”的教学方法进行了实践教学.实践结果表明,分专业分层次教学方法能有效解决高职“计算机文化”课程教学中存在的主要问题.