基于多Agent多议题协商模型的研究

协商是多Agent系统实现协调、协作和冲突消解的关键环节。如何构建有效的协商模型是多Agent系统中有待解决的问题之一。本文主要讨论了多Agent多议题自动协商问题,构建了基于多Agent多议题协商模型,提出了相应的协商算法。     

分布式多传感器交互式多模型融合算法

将交互式多模型(IMM)算法应用到分布式多传感器融合跟踪系统中,代替原有系统的单模型Kalman滤波,推导出了分布式多传感器交互式多模型信息融合算法,并通过仿真实例验证了算法的效果。     

多参数多台舵机自动测试系统的设计

介绍了一种基于虚拟仪器设计的多参数多台舵机自动测试系统，重点讨论了测试系统的软硬件设计及实现方法，介绍了自动测试流程的设计，并分析了系统的优点。     

多输入多输出非线性系统ZG控制方法框架展望

非线性系统的跟踪控制及其奇异点问题求解已在科学和工程领域引起广泛关注。基于作者团队前期主要关于单输入单输出非线性系统跟踪控制的工作,本文进一步提出了面向多输入多输出非线性系统跟踪控制的ZG控制方法的框架与展望。利用该ZG控制方法,可以设计能同时解决多输入多输出非线性系统的跟踪控制问题及可能出现的奇异点问题的ZG控制器。     

多输入多输出无线光通信系统中的自适应调制技术

在基于强度调制、直接检测的多输入多输出无线光通信系统中,为了保证发射信号非负特性,提出一种基于直流偏置的自适应调制技术,并且利用奇异值分解将多输入多输出信道转换为并行信道。此外,提出一种基于 QR 分解、逐次干扰消除的自适应调制技术。在目标误比特率性能条件下,利用 QR 分解、逐次干扰消除的特性将多输入多输出信道等效为并行信道。根据最大化可达速率的优化目标,最优地给各个子信道分配功率。仿真结果表明所提出的2种自适应调制方法在保证误比特率性能和平均发射光功率恒定的前提下,有效地提高了系统的传输速率。这2种自适应调制技术在利用多输入多输出技术空分复用增益的同时,进一步提高了无线光通信系统的频谱利用率。     

多Agent协作模型

Agent系统是人工智能中的一个重要部分,而多Agent系统便是侧重于各个Agent之间的协作机制。对于已经存在的多Agent系统,多数都是人类以语言的形式进行描述.本文首先提出多Agent协作模型,并对该模型进行形式上的描述。     

多Agent技术在远程教学系统中的应用

Agent是目前一个非常活跃的研究领域,多Agent系统更是为开发分布式、复杂系统提供了可能.本文主要对基于多Agent技术的远程教学系统模型进行研究,采用多Agent系统理论对远程教学的任务和功能进行设计,建立远程教学系统模型,并进行较详细的功能框架设计.     

基于Multi-Agent的多机器人控制技术

阐述了Multi Agent概念及关键技术,包括任务分解原则、通信机制及开发路线的选择等。提出了基于MA技术的多机器人系统的体系结构和基于进化算法的多机器人系统协调机制,并基于Agent概念及模块化方法设计了机器人智能控制系统。     

单用户智能天线-多输入多输出系统的上行容量分析(英文)

提出了一种新的多天线系统架构,该系统架构在接收端结合了智能天线技术和多输入多输出技术. 对上行智能天线-多输入多输出系统进行了研究,提出关于单用户智能天线-多输入多输出系统上行容量的联合优化问题. 对于等功率分配情形,当同一天线阵列的来自不同发送天线的到达角相同时,得到了上行容量的闭式解,当同一天线阵列的来自不同发送天线的到达角不同时,得到了上行容量的上限. 接着,对于一般情形,提出了一种求解容量优化问题的次优解方法. 最后,通过数值仿真比较了传统多输入多输出系统容量和智能天线-多输入多输出系统容量,仿真结果表明所提出的次优解方法是可行的.     

汽车多路信息传输系统故障检测诊断分析

随着电子技术在汽车上的广泛应用,现代汽车电脑间的数据交换大多采用多路信息传输系统,也就是通过CAN（Controller Area Network）控制单元区域网络来交换数据。装有CAN-BUS多路信息传输系统的车辆出现故障,维修人员应首先检测汽车多路信息传输系统是否正常。因为如果多路信息传输系统有故障,则整个汽车多路信息传输系统中的有些信息将无法传输。文章主要介绍数据传递形式、数据总线系统故障时如何检查、引起汽车多路信息传输系统故障的原因以及故障诊断步骤。     

语言层面和文化层面的归化与异化

可以用归化和异化的方法和策略对语言层面的翻译和文化层面的翻译进行有效的处理。在一种民族语言尚未成熟时,侧重语言形式的异化和文化因素的归化,并以语言形式的归化和文化因素的异化为辅;而当民族语言走向成熟时,则应侧重文化因素的异化和语言形式的归化。同时以文化因素的归化和语言形式的异化为辅。两个层面的归化和异化应该是相辅相成的。另外,应该尽量避免两个层面的归化和异化过度。     

Preadolescent perceptions of challenging and difficult course activities and their motivational distinctions

The present research sought to determine if primary school students differentiate between classes that are challenging and those that are difficult, and how these distinctions relate to their motivation and achievement. Results indicated that there are three types of challenges/difficulties. Challenging classes are those that are demanding of the students but within their ability, are important and are tied to interests; students in these classes are more likely to adopt mastery goal orientations. Purely difficult classes are not valued, require a lot of effort, but are threatening to students’ efficacy. Classes that are difficult compared to others are those that are more demanding for the student than other students or other classes. These classes are not valued and are also seen as a threat to efficacy. Both purely difficult and difficult compared to others classes were negatively related to achievement, and students in these classes are more likely to adopt performance avoidance goal orientations.     

Sex and Race Differences in Faculty Tenure and Promotion

Data from the 1993 National Study of Postsecondary Faculty are used to explore sources of the lower representation of women and minorities among tenured than tenure track faculty and among full professors than lower ranking faculty. A 2-step approach is used. First, differences in the probability of being tenured rather than on a tenure track are explored. Then, differences in the probability of holding the rank of full professor among faculty who are tenured are examined. Logistic regression analyses are used to isolate the effects of sex and race on the dependent variables after controlling for human capital, productivity, and structural characteristics. For both tenure and promotion to full professor, separate analyses are conducted for women and men in order to explore sex differences in the tenure and promotion processes. All analyses are conducted separately for full-time faculty working at public 2-year institutions and full-time faculty working at 4-year institutions.     

四川卧龙自然保护区珍稀濒危植物及其保护与利用

卧龙是四川省珍稀濒危植物最丰富的地区.有国家保护的珍稀濒危植物24种,隶属18种20属,其中一级保护2种,二级保护11种,三级保护11种,该文论述了该地区珍稀濒危植物的特点、类型及地理分布,列举了这些植物的一些利用价值,及保护建议.     

思想政治理论课与理论宣传的异同启示

思想政治理论课和理论宣传都是思想理论战线工作的重要组成部分。同时,两者又有很大区别。具体来看,两者的不同,体现在两者的接受对象、推进方式、具体目标等方面。两者的统一性。主要体现在产生根源、要素、方向等三个方面。从两者的辩证关系出发,一方面要注意两者的差异。把握思想政治理论课与舆论宣传的内在要求;另一方面要注重两者的统一,推进思想政治理论课与舆论宣传的协调统一。     

Sexual abuse and exploitation of children and adults with mental retardation and other handicaps

There is growing recognition that children, adolescents, and adults who are mentally retarded are particularly vulnerable to sexual abuse and exploitation and are in need of intervention services. These people are especially vulnerable due to ther often life-long dependence on caregivers, relatively powerless position in society, emotional and social insecurities, and lack of education regarding sexuality and sexual abuse. In addition the mental health functioning and emotional development of individuals who are mentally retarded are not well understood, and many professionals remain uneducated about their mental health needs. To work effectively with this population, mental health professionals and educators must be alert to what is known about the sexual abuse and exploitation of persons with mental retardation. Furthermore, they need to become educated about the rights of these persons to special legal protection from abuse and neglect and to appropriate and effective mental health interventions. The challenge for mental health professionals and educators is to protect persons who are mentally retarded from sexual abuse and exploitation, to provide appropriate psychotherapeutic interventions when abuse occurs, to respect their right to developmentally appropriate knowledge about sexuality and sexual abuse, and to allow for the fulfillment of their sexuality.     

Policy and practice in deaf education: views and experiences of teachers,and of young people who are deaf in Northern Ireland and Sweden

Due to the fact that the outcomes of education for most school leavers who are deaf in Northern Ireland are weak literacy skills and below average reading ages, a study was undertaken to investigate this situation. The views and experiences of teachers of children who are deaf, and of young people who are deaf in Northern Ireland, where oral and total communication forms of instruction are employed in their education were compared with those of Sweden where a sign bilingual is used in education, in the context of current policy and practice. The aim of the study was to find out if there are elements of Swedish policy and practice that could help resolve the situation for Northern Irish learners who are deaf. A qualitative approach was adopted via interviews with teachers of deaf and young people who were deaf in both countries. Findings are reported in relation to policy and practice in education, attitudes to deafness, status of sign language and other factors.     

墨家天鬼观与上帝观之异同

墨家天鬼与基督教上帝有着诸多异同.其相同方面主要有:作为一种普适性的标准,不分贫富贵贱;在天人关系中以人的实际需求为中心;都强调精神上的超越性与终极性,引导信徒通过他界来世追求圆满.其相异方面主要是:在终极存在上,上帝是绝对的一神,天鬼则不然;在人神关系上,上帝观通过契约形式传达了一种平等精神,天鬼思想透露的则是神与人的单向的、不平等的关系;在命运上,上帝观所反映的是上帝决定一切的宿命论,而墨家则明确提倡非命说.正确理解这些异同对于深入探究中西历史文化的特点有非常重要的意义.     

中西思维差异与汉英语言结构

汉语和英语属于两种完全不同的语系。语言的系统不同,思维与形式的结合机制也就各有千秋。思维方式与语言密切相关,是语言生成和发展的深层机制。思维方式的差异正是造成语言差异的一个重要原因。思维以一定的方式体现出来,表现于某种形式之中。因此语言结构的对比研究不是孤立的。本文主要是从中西思维差异角度分析中英文句子结构的差异从而找出其表象下面最深层的,具有支配性的初始因素。