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Supported by the ESCAP pilot project on integrated land and water resources management in arid areas using remote sensing and GIS (ESCAP 5-4-401), the land and water resources optimization model was developed and an integrated land and water resources management system based on remote sensing and GIS was designed and developed in this paper.

本文结合联合国亚太经社理事会示范项目"利用遥感与GIS技术进行干旱区水土资源综合管理"（Pilot project on integrated land and water resources management in arid areas using remote sensing and GIS，ESCAP 5-4-401），针对我国广大的干旱半干旱区水土资源综合管理的实际需要，详细讨论了基于遥感与GIS的干旱半干旱地区水土资源综合管理系统的设计思想、目标、结构与功能及系统开发中的关键技术。

To reduce the size of private-key and public-key of HORS, a scheme named assistant-key based-onetime signature is presented which introduces an assistant-key and Merkle tree mechanism, and a broadcast authentication protocol for multi-sender sensor networks based on AKB-OTS is also presented.

提出基于辅助密钥的一次性签名方案(assistant-key based-onetime signature， AKB-OTS)，引入辅助密钥和Merkle树机制对HORS进行改进，降低其公钥和私钥尺寸。提出基于AKB-OTS的多广播节点传感器网络广播认证协议。

The same result can also be achieved when optimizing F8 function (Rastrigin's function). Comparing to EGA, KEGA is easy to realize and the increase of computation load can be neglected, but the performance of KEGA can be improved greatly. 2. To enhance the speed of AIA, two new methods of computing the concentration of antibody were developed. Simulation results for F8 and F15 (needle in haystack: type I) functions show that the two methods can improve the running speed of AIA more than 8. 5 times. 3. As to the drawback in defining antibody concentration, a new definition based on Euclidean distance between two antibodies and fitness is proposed. On this basis, a new AIA was constructed. The convergence performance are more better than that of AIA. 4. Combining king crossover with AAIA and DBAIA, two new AIAs, KAAIA and DKBAIA, were proposed.

仿真实验结果表明KEGA实现简单，与EGA相比，其增加的计算开销可以忽略，但性能改善十分明显； 2、针对基于信息熵的免疫算法运行速度慢的缺点，提出了二种能够加快AIA运行速度的新的抗体浓度计算方法，得到两种新的免疫算法，即加速的人工免疫算法(Accelerated Artificial Immune Algorithm，AAIA)和加速的人工免疫算法-2（Accelerated Artificial Immune Algorithm-2，AAIA-2），对测试函数F15(needle in haystack：type I)、F8函数的仿真研究表明，这两种算法的运行速度都是AIA的8.5倍以上； 3、针对AIA的浓度定义存在的缺陷，提出了一种新的基于抗体间欧氏距离和适应度的新的抗体浓度定义，并依据该定义构造了一种基于欧氏距离的人工免疫算法(Euclidean Distance-based Artificial Immune Algorithm，DBAIA)。

This study aims to design, develop and evaluate netiquette curriculum for high school students in Taiwan. In order not to be a "Hi-tech barbarian," Netiquette, or net etiquette, has become one of the most important Internet ethic issues. Although Taiwan Ministry of Education has integrated netiquette issues in nine-year compulsory curriculum policy in 2004, there are no developed curriculums for school teachers to follow. Therefore, based on "Systematic Instructional Designing Model"and problem-based learning as instructional strategy, this study has develped three netiquette curriculums and evaluated them formatively.

本研究旨在针对台湾中学生的需求，开发网路礼仪课程，根据计惠卿、张杏妃（2001）提出之问题导向学习（problem-based learning， PBL）模式，依循分析、设计、发展、实施、评鉴五大步骤，发展网路礼仪教材「网路小白不要来」、「网路沟通通ㄅ通」与「拒绝信骚扰」，让中学生在问题解决的真实情境下，了解网路礼仪的意义与各项内涵，体认网路礼仪之必要性，明白网路礼仪正确、简洁、清楚、安全与隐私、友善与尊重的精神，以期中学生能以网路礼仪为上网沟通的行为准则，未来愿意成为一遵守网路礼仪之网路公民。

To further enhance the security and connectivity for wireless sensor networks,proposed an improved key management scheme.Introduced the scheme,a random key predistribution using multiple key spaces and multipath key reinforcement was based on group-based deployment model which in the paper of DU Wen-liang.

为了进一步提高无线传感器网络的安全连通性，在分析DU Wen-liang等人的group-based节点投放模型的基础上，提出了一种改进的密钥管理方案：多密钥空间与多路径增强相结合的随机密钥预分配方案。

To further enhance the security and connectivity for wireless sensor networks,proposed an improved key management scheme.introduced the scheme,a random key predistribution using multiple key spaces and multipath key reinforcement was based on group-based deployment model which in the paper of du wen-liang.analysis and simulations show that the scheme has lower memory and communication overheads, better ability against attacks besides good security performance.

为了进一步提高无线传感器网络的安全连通性，在分析du wen-liang等人的group-based节点投放模型的基础上，提出了一种改进的密钥管理方案：多密钥空间与多路径增强相结合的随机密钥预分配方案。结果分析表明，该方案需要较少的内存存储空间，不仅提高了系统的连通性，还降低了节点的被捕获概率。

The geometric and electronic structures of the unreduced and reduced Pt-doped ceria with different doping concentration are systematically studied using the first principles method based on the density functional theory with the inclusion of on-site Coulomb interaction.

本文用基于密度泛函理论的第一性原理方法，并考虑了Ce4f电子的在位库仑作用（on-site Coulomb interaction），计算并分析了不同浓度金属Pt掺杂对二氧化铈原子结构、电子结构和化学特性的影响。

In this paper,a VoD(Video-on-demand)scheme based on DHTunder P2P overlay network is proposed.

本文提出一种基于 DHT的 P2P 覆盖网络下视频点播(Video-on-demand)的解决方案。

Based on these, pulse flash butt welding function was carried out with the use of the method of joining proportional control and ON-OFF control and current feedback. Welding prcess was automatically controled by Programmable Logical Computer.

在此基础上，以焊接电流作为反馈参数，采用比例控制与ON-OFF控制相结合的方式实现了钢轨脉冲闪光焊功能；采用可编程控制器控制焊接过程，实现焊接过程自动化。

Skyhook control, ON-OFF control which is based on skyhook control thought and fuzzy logic control have been studied and the time domain and frequency domain simulation programme was realized using Malab high-level language, Simulink and corresponding toolbox.

仿真结果表明Skyhook控制、ON-OFF控制和模糊逻辑控制方法都能在合理的轮胎动载荷和悬架动行程的前提下提高车辆的乘坐舒适性，其中Skyhook控制和模糊逻辑控制方法对车辆行驶平顺性的改善尤为显著。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。