多重直序扩频信号的相关接收

本文说明了利用伪随机(PN)码的相关特性,进行多重直序扩频信号相关接收的基本原理。指出了这项技术在卫星多址通信中的重要意义,并对实验结果进行了分析,得出了一些重要的结论。     

我国饭店对客信息服务存在的问题及对策研究

文章针对我国饭店目前重视信息管理而忽视信息服务的现状,指出信息服务的重要性,并对饭店对客信息服务存在的问题进行深入分析,最后提出完善对客信息服务的对策。     

FORTRAN语言及汇编语言在坐标测量中的混合编程技术

本文论述了Fortran在坐标测量数据采集系统以及图形输出系统中与汇编语言的程序连接及调用方法,讨论了利用Fortran语言进行测量样本点的拟合、画线以及图形输出问题,给出了编程方法及实例。     

An exploratory study of the influences that compromise the sun protection of young adults

This paper reports on an exploratory research project designed to gain a deeper understanding of the influences on ultraviolet radiation (UVR) behaviours among high‐risk young adults to determine what compromises the adoption of protection measures for this group. A dual approach using focus groups and the Zaltman Metaphor Elicitation Technique was used to provide personal narratives related to UVR behaviour for tertiary education students. Results from both ‘conversations’ were content‐analysed using an iterative ‘bootstrapping’ technique to identify key themes and issues. This exploratory research identified a number of key themes including effect on mood, influence of culture, the value of tans, unrealistic optimism, risk‐orientation, and the role of experience. This group felt that they not been targeted effectively by public health campaigns and did not fully understand the dangers of high‐risk UVR behaviours. Although a number of previous studies have investigated the relationship between knowledge and behaviour, and largely concluded that increases in knowledge do not lead to increases in adoption of protection practices, the preliminary findings of this study reveal that the knowledge and perceived self efficacy of protective practices is extremely high, what is lacking is the perceived threat and thus the motivations to adopt such behaviours. The conclusions drawn from this research indicate that there are a variety of important influencing factors that compromise UVR behaviours, in particular, the lack of perceived seriousness and severity towards long term consequences such as skin cancer. The recommendation to address the imbalance of ‘perceived threat’ and ‘outcome expectations’ is to focus on increasing knowledge of skin cancer, particularly susceptibility to skin cancer and the severity of the condition.     

The Technique of Drafting An English Commercial Cable

Today telex and cable are two important means usod in communication with customors abroad. In telex,as it is not chargod by the number of words but by the minute,more words can be used to express our idea,so it is less difficult for our students to learn,while in cable we,in order to save money,     

关于同轴线最佳尺寸比的讨论

本文对国内外微波技术书籍中公认的同轴线最佳尺寸比提出了异议,并给出了电特性更好的新的最佳尺寸比值。     

卫星电视接收中的主要技术问题

本文是研制卫星电视接收站(TVRO)的技术总结.文中对系统G/T值、宽频带、解调门限、视频特性、伴音特性及平均无故障工作时间等六项主要技术关键进行了论述.     

关于教育产业化的思考

我国教育的现状、发展和变化的实际说明教育产业化已经实实在在地显现出来。但我国的国情决定，它的发展既是必然的，又不可能太快，这是不以人们意志为转移的。     

宅基地使用权收回的流程规范

宅基地使用权收回制度在整个宅基地使用权制度中处于重要的节点地位。宅基地使用权收回流程的现行法律规定与实践比较混乱,需要进一步规范。宅基地使用权收回程序的启动者应是集体经济组织。对因公共利益而收回和因非公共利益而收回的不同情形,应采用不同的程序。政府负责审查和涂销登记。宅基地使用权收回后,被收回人有获得补偿和重新申请宅基地使用权的权利。未来立法应对宅基地使用权收回流程做出规范,切实保护农民合法权益。     

中小企业信息化过程中自身存在的问题及对策

改革开放以来,我国中小企业得到迅速发展,数以万计的中小企业造就了信息化的巨大潜在市场。我国中小企业信息化建设取得了一定成绩,但也存在着不少问题。文章试图从中小企业信息化方面面临的各种问题进行初步分析和探讨,以促进中小企业信息化的发展。