高校光电工程创新人才的培养路径选择

社会的发展对光电工程师能力提出新的要求,高校必须探索新的人才培养路径。通过对华中科技大学光电学院应届毕业生的问卷调查,了解本科生创新能力发展状况,分析创新环境、主动学习以及实践环节三者对创新能力的影响,提出了大学培养光电专业本科生工程创新能力的多种路径选择。     

Quasi-variational principles of single flexible body dynamics and their applications

The reasons for studying single flexible body dynamics are that on one hand, it is the basis of flexible multi-body dynamics. If the theory of the single flexible body dynamics has been deeply studied, the theory of flexible multi-body dynamics will be researched easily. On the other hand, it has its unique and important applications. Quasi-variational principle of non-conservative single flexible body dynamics is established under the cross-link of particle rigid body mechanics and deformable body mechanics. Taking the interceptor as an example, this paper has explained the physical meaning of the quasi-stationary value condition of the quasi-variational principle in non-conservative single flexible body dynamics. Taking the launch of rocket as an example, it has illustrated the features of “one force for two effects” in a single flexible body dynamics. With an example of the extending flexible beam coupled with the spacecraft attitude, it has shown the transition from the single flexible body dynamics to the flexible multi-body dynamics. Finally, a number of related problems are discussed. Supported by the National Natural Science Foundation of China (Grant No. 10272034), the Doctoral Education Foundation (Grant No. 20060217020), and the Natural Science Foundation of Harbin Engineering University (Grant No. HEUF04003)     

TEST BEAM STUDIES OF BES BARREL SHOWER COUNTER PROTOTYPE

The BES barrel shower counter prototype was tested with electron and pion beam in the momentum range from 0.2 to 2.0GeV/c at 12GeV PS test beam line of KEK, the preliminary results were reported. Four types of gas mixtures which were used in prototype have been tested: 40% Ar/60% Isobutane, 44.5% Ar/44.5%CH₄/11% Methylel, 47%Ar/47%%CH₄/6% Methylel, 49.3%Ar/49.3%CH₄/1.4% Ethyl alcohol. The results show that using SQS tube as sampling means in BES shower is feasible way for BEPC region.     

Synthesis and Structure of Inclusion Complex of Cyclomaltoheptaose（β—Cyclodextrin）with m—Aminophenol

ＩｎｔｒｏｄｕｃｔｉｏｎＳｕｐｒａｍｏｌｅｃｕｌｅｉｓａｋｉｎｄｏｆｓｙｓｔｅｍｗｉｔｈｓｐｅｃｉａｌｓｔｒｕｃ ｔｕｒｅｄｅｐｅｎｄｉｎｇｏｎｔｈｅｗｅａｋｍｏｌｅｃｕｌａｒｉｎｔｅｒａｃｔｉｏｎｓ (ｓｕｃｈａｓｖａｎｄｅｒＷａａｌｓ ,ｈｙｄｒｏｇｅｎｂｏｎｄ ,ｅｌｅｃｔｒｏｓｔａｔｉｃａｎｄｈｙ ｄｒｏｐｈｏｂｉｃｉｎｔｅｒａｃｔｉｏｎｓ) .Ｔｈｅｗｅａｋｉｎｔｅｒａｃｔｉｏｎｓａｒｅｒｅｌａｔｅｄｔｏｂｉｏｌｏｇｉｃａｌｐｒｏｃｅｓｓｅｓ ,ｆｏｒｅｘａｍｐｌｅ ,ｔｈｅｃａｔａｌｙｔｉｃｒｅａ…     

关于弱智儿童智力缺损鉴别的研究——智力鉴别量表内容的初步确定

为了能对弱智儿童智力缺损的程度作出较好的鉴别和帮助矫治起见,编制了一份适用于浙江省的儿童智力量表。本文讨论量表内容的选择和确定。 研究过程与方法:以两套不同内容的材料(共71题),先后分两次对31名小学一年级7岁儿童和28名弱智学校儿童(7—13岁)进行个别测试。根据测试结果的分析和比较,最后选定42题,编排为10个分测验,作为本量表的内容。它们是:1)图画填充;2)照管日常生活;3)实物排列;4)计算;5)图片归类;6)分辨能力;7)拼积木;8)数字背诵;9)划去图形;10)理解。     

Cyclic homology of algebras with one generator

We compute the cyclic homology of A = k[X]/X ⁿ for an arbitrary commutative ring k, and we apply this result to compute the cyclic homology of k[X]/f, when k is a field and f is an arbitrary polynomial.This work was presented at the IX-ELAM, Santigo de Chile, July 1988, and was partially supported by CONICET.The following pepole participated in this research: Jorge A. Guccione, juan José guccione, Maria Julia Redondo, Andrea Solotar, and Orlando E. Villamayor.     

快速溶解法在测定硅铁及其合金元素中的应用

建立快速溶解硅铁及其合金的试验方法,并利用电感耦合等离子体发射光谱仪分析检测硅铁及其合金中微量元素及痕量元素,证明了快速溶解法的可行性.结果显示,方法的精密度及检测仪器重复性测量不确定度的结果均符合国家标准规定的允许偏差范围,说明快速溶解法具有一定推广价值和应用前景.     

Erythemal Ultraviolet Exposure of Cyclists in Valencia,Spain

UV exposure is considered to be one of the most important risk factors in skin cancers, mainly in outdoor occupational or recreational activities. Outdoor athletes such as cyclists receive regular and significant solar UV erythemal radiation (UVER). The aim of this work was to quantify UVER exposure of amateur cyclists over the course of several days in their training schedules. To quantify UVER exposure of this group, dosimeters (Viospor) were attached at the top of the helmet in the course of their training. The study took place in Valencia, Spain, in June to July 2008 and February to March 2009, and involved a group of five cyclists over a period of 4 days for each period. The mean 2-day personal UV exposure was 32.24 ± 4.14 SED (standard erythema dose) in summer and 11.30 ± 5.36 SED in the winter period. One SED is defined as an effective radiant exposure of 100 J m⁻² when weighted with the International Commission on Illumination (CIE) erythemal response function. The mean exposure ratio (ER) of cyclists was 0.37 ± 0.04 in summer and 0.40 ± 0.11 in winter. The cyclists received the highest UVER exposure in the summer period, but in both training periods UVER exposure was in excess of occupational and recreational guidelines, indicating that protective measures are very necessary.