Growth modes of solution-grown CdS thin films

The growth modes of CdS thin films on glass in a chemical bath were analysed using scanning electron microscopy and optical microscopy. The results of these studies show that the film growth occurs by ion-by-ion condensation and by colloidal particles of CdS adhering to the substrate. Both mechanisms are operative from the initial stages of film growth. The predominance of one or other of these two growth modes depends on the abundance of Cd and S ions present in the solution, which is determined by the amount of complexing and sulphurising agents and ammonia used for the controlled release of Cd and S ions into the solution. The growth mode influences the optical properties of the films.     

硅烷偶联剂对太阳电池铝浆性能的影响及分析

在晶体硅太阳电池制造过程中,铝电极是通过丝网印刷-烘干-烧结制成的。该过程中铝电极膜层与传送网带发生相对摩擦,易导致铝膜表面产生划痕、起灰。重点研究了添加不同质量分数w(硅烷偶联剂)(0.5%~3.0%)对铝浆有机载体的表面张力、铝膜表面划痕、起灰、导电性能的影响规律。结果表明:当w(硅烷偶联剂)为2.5%时,有机载体的表面张力可从约30mN/m降低至25.69mN/m,提高了铝粉颗粒之间以及铝膜与硅片之间的黏附作用,从而减少划痕和灰化,进而可使铝电极的接触电阻由0.60?降低至0.19?。     

Multi-Agent Radio Resource Allocation

This paper presents a spatially distributed and dynamic billing, pricing and allocation mechanism for which a user terminal requires Cognitive Radio abilities. That is, the Cognitive Radio abilities will be applied to the economical environment. The radio resource goods are allocated to the users by a multi-unit sealed-bid auction. Intelligent entities like the bidding strategy have to represent operator’s and users’ behavior and to make decisions for them in order to fulfill the preferences and QoS. The main functionalities, used to execute the dynamic auction sequence and located in the MAC are described, assuming the entities possess Cognitive Radio abilities.

外消旋玫瑰醚合成的研究

该文报导以天然香茅醇为原料,采用光敏氧化法合成外消旋玫瑰醚。通过的氧化还、还原、环化三个单元的影响因素的探讨,筛选出合理的工艺条件,产品纯度〉９８％;茯理化指标,香气均达到国外同类产品的水平。     

新型处理药剂（EP-110）处理各种重金属离子的实验研究

各行各业生产过程中会产生大量废水,重金属离子污染物是其中的重要控制指标,传统的处理方法不能完全解 决这类污染。本文通过大量的实验数据,对新型的处理药剂(EP-110)处理各种重金属离子的性能做了全面的测试、分析,并 提出了使用方法。     

SC系列涂饰剂的性能特点及应用

对聚氨酯涂饰剂系列产品的性能特点及应用进行了阐述。 Ｓ Ｃ９３００ 系列柔软性突出,遮盖力强; Ｓ Ｃ９６０ 系列丰满弹性显著,遮盖力好,耐溶剂; Ｓ Ｃ８００ 系列涂层薄,真皮感强,弹性好,耐溶剂,耐水性好。合理搭配使用,能满足不同革品种的涂饰要求。提供１０ 个分别用于大面积补伤、服装革、沙发革、鞋面革涂饰的配方及工艺供参考。     

唑烷在山羊服装革复鞣上的应用

本文介绍了唑烷在山羊服装革复鞣中的应用。实验结果表明,用３ ％ 唑烷复鞣可以代替改性戊二醛与铬、苯乙烯—马来酸酐结合复鞣,成革丰满,细致,柔软。     

MANET中基于移动代理拓扑发现的策略及其仿真

在MANET环境下,讨论了基于多个移动代理的拓扑发现方案。方案的核心在于通过链路关联度来反映网络的拓扑状况,以移动代理的历史路径和节点信息新鲜度来决定移动代理的漫游策略,仿真实验表明:该算法能够在较短的时间内达到收敛状态,同时给出了节点和代理的最优比例。     

战术无线互联网安全模型研究

随着战术无线互联网(TI)在陆军战术精确打击中的广泛应用,对网络的安全性、抗毁性和网络中节点工作的高效性、灵活性以及生存能力提出更高要求。列出了战术无线互联网的基本概念,在分析已有的网络安全模型的基础上,将Mobile Agent技术于用于各层网络节点,结合安全策略管理技术,提出可用于提高精确打击作战效能的动态自适应网络安全模型。并在简单实验中证明该模型具有较严密的安全防范措施,适用于复杂网络环境。     

Credibility protection for resource sharing and collaborating in non-center network computing environments

Non-center network computing environments have some unique characteristics, such as instability, heterogeneity, autonomy, distribution and openness, which bring serious issues of security and reliability. This article proposes a brand-new credibility protection mechanism for resource sharing and collaboration in non-center network computing environments. First, the three-dimensional hierarchical classified topology （3DHCT） is proposed, which provides a basic framework for realizations of the identity credibility, the behavior credibility and the capability credibility. Next, the agent technology is utilized to construct the credibility protection model. This article also proposes a new comprehensive credibility evaluation algorithm with simple, efficient, quantitative and able to meet the requirements of evaluating behavior credibility and the capability credibility evaluation as well. The Dempster-Shafer theory of evidence and the combination rule are used to achieve the evaluation of the capability credibility. The behavior credibility is evaluated with the current and historical performance of nodes for providers and consumers to realize more accurate prediction. Based on the non-center network computing simulation test platform, simulation is been conducted to test the performance and validity of the proposed algorithms. Experiment and analysis show that the proposed algorithms are suitable for large-scale, dynamic network computing environments, and able to maintain the credibility for networks without relying on central node, make a non-center network gradually evolve into an orderly, stable and reliable computing environment efficiently.