探地雷达速度谱估计的实验研究

电磁波在地下媒质中的速度估计是探地雷达应用研究的重要课题,本文基于地震探测的共中心点的速度谱理论,提出利用点目标速度谱来估计探地雷达脉冲电磁波在地下媒质中的传播速度,并用实验数据验证了本方法的有效性.     

音乐的构成对音乐表演形成的影响

成功的音乐表演对艺术家本人提出了这样的课题:专业知识、技能的掌握、文化底蕴的积累、对生活的认知程度、对情感的敏感体验等.其中,专业知识、技能的掌握及对音乐诸要素的构成因素的把握与运用,对音乐表演艺术风格的形成以及表演的优劣有着至关重要的影响.     

基于高阶谱的溢流阀故障分析

提出了一种利用三谱对角切片分析溢流阀故障信号的方法。高阶谱理论上能完全消除高斯噪声的影响,本文由经过预处理的信号经过高阶谱分析后,可以得到三谱对角切片图,由图中可以获得正常信号与故障信号在切片图上的差异。试验结果表明利用高阶谱理论进行故障检测是可行的。     

240—250nm波段氯苯的共振增强多光子电离研究

首次报道了在超声分子束条件下,氯苯分子（C6H5Cl）在240-250nm紫外激发波段的共振增强多光子电离/飞行时间质谱（REMPI-TOFMS）。实验获得母体离子（^112C6H5Cl^＋）和一些主要碎片离子的分质量光谱,以及它们在240.5nm和248.6nm两种激发波长下的光强指数。文中对母体离子及主要碎片离子的生成机理进行了探讨,研究表明：该波段范围内,氯苯分子首先吸收一个光子从基态^1A1（S0）跃迁至激发态^1B2（S1）,激发态分子再吸收一个光子而电离,产生母体离子^112C6H5Cl^＋;母体离子直接解离而生成碎片离子^77C6H5^＋。质量更小的碎片离子^51C4H3^＋和^27C2H3^＋则是母体离子进一步吸收光子,然后通过快速的内转换而形成。在该波段范围内,氯苯的最佳检测波长为248.6nm。在该激发波长下,氯苯的探测限能达到到ppb量级。     

红外光谱仪测定含氧化合物结构的研究

红外光谱仪测定结果表明,所有含氧化合物,无论是有机物还是无机物,其红外活性都是很大的,表现为强宽的吸收峰,这为判定化合物是否含氧提供了有力的分析检测依据。     

Pre-service teachers’ attitude towards inclusive education for students with Autism Spectrum Disorder in Malaysia

In this study, the pre-service teachers’ attitudes towards the educational inclusion for students with Autism Spectrum Disorder (ASD) were investigated to identify their attitudinal patterns and predictors. An attitudinal survey was conducted with 264 pre-service teachers in a teacher training programme in Malaysia. The study involved 151 special education pre-service teachers and 181 pre-service teachers in Special Education, Sciences, and in English teacher training programmes, in order to identify the effects of teaching specialisations and societal attitude on their inclusive education attitudinal measures. The findings revealed that the special education pre-service teachers were less in favour of the total inclusion of students with ASD in the mainstream, when compared with the non-special education pre-service teachers. The findings also revealed the combined effects of societal attitude and a categorical teacher training model in shaping the pre-service teachers’ attitudes towards inclusive education for the students with ASD in Malaysia. Such combined effects offered a perspective to explain the delay in the implementation of inclusive education, and also the prospect of its future development in the Southeast Asian region.     

美国梦寻——读杰克·克鲁亚克的《在路上》

"美国梦"是美国文学中的一个重要的主题.美国历代作家都记述了人们的寻梦历程.克鲁亚克的小说《在路上》也探索了二战后的年轻人对美国梦的追寻.尤其是以迪安·莫里亚蒂为代表的"垮掉的一代"对新美国梦的追寻和探索.从他们的寻梦历程,我们体会到"垮掉的一代"在精神领域的探索和追求.     

Social StoriesTM: does the research evidence support the popularity?

The use of Social Stories^TM appears to be popular among educational psychologists (EPs) and other children’s services professionals as an intervention for enhancing the social functioning of children with Autism Spectrum Disorders (ASDs). This article explores and evaluates the research evidence upon which this apparent popularity is based. Several areas of significant weakness in the body of literature are identified which, it is suggested, need to be addressed through further research before EPs can recommend Social Stories^TM as a stand alone intervention strategy in the confidence that it represents evidence-based practice.     

Secondary transition experiences for pupils with Autistic Spectrum Conditions (ASCs)

This research explored the views and experiences of key stakeholders regarding inclusion into secondary phase schooling for pupils with Autistic Spectrum Conditions (ASCs). Six Year 6 pupils met the criteria for admission to a mainstream secondary school with attached specialist provision for ASCs. Three pupils transferred to this school, whilst three transferred to their local mainstream secondary school. Qualitative methodology was used to collect views and experiences both before and after transition. Interviews were recorded and transcribed and data analysed using a form of thematic analysis. Emerging categories and themes provided several indicators for good practice regarding the transition of this group of pupils. Further study will establish the consistency of these factors within other contexts and settings.     

淮南市土地利用变化时空融合图谱分析

土地利用时空演化十分复杂,迫切需要一种能对土地时空复合图形信息直观表达的方法,而地学信息图谱就成为其中最有利的方法之一。本文基于地学信息图谱分析方法,利用淮南市1987年、2005年两个不同时相的土地利用矢量数据为源数据,结合RS与GIS相关软件和DEM数据,生成系列时空融合土地利用格局变化图谱,对淮南市的土地利用格局变化进行定性和定量分析。结果表明:1987—2005年,淮南市地区土地利用格局发生了显著变化,水系变化呈现一个平缓的递增变化,居民区的变化主要变化递增明显,独立工矿占城市面积比例虽然不大,但是变化也是明显增多,农林耕地在发展的矿业城市下呈现出大幅递减的规律。