篮球裁判员心理研究综述

运用文献资料、分析比较等方法对1994至2003年之间篮球裁判员心理研究的部分文献资料进行了分析研究，探讨篮球裁判员应具备的心理素质及临场执法时的心理状态和心理调控技能，并对篮球裁判员心理素质的提高提出建议。     

Seeking Nettle Textiles – Utilizing a Combination of Microscopic Methods for Fibre Identification

Bast fibres have been commonly used as a textile material in Northern Europe since Neolithic times. However, the process of identifying the different species has been problematic, and many important questions related to their cultural history are still unanswered. For example, a modified Herzog test and the presence of calcium oxalate crystals have both been used in identification. In order to generate more reliable results, further research and advancement in multi-methodological methods is required. This paper introduces a combination of methods which can be used to identify and distinguish flax (Linum usitatissimum), hemp (Cannabis sativa), and stinging nettle (Urtica dioica). The research material consisted of reference fibres and 25 fibre samples obtained from 12 textiles assumed to be made of nettle. The textiles were from the Finno-Ugric and Historical Collections of The National Museum of Finland. The fibre samples were studied by observing the surface characteristics and cross sections with transmitted light microscopy, and by using a modified Herzog test with polarized light, in order to identify the distinguishable features in their morphological structures. The study showed that five out of 25 samples were cotton, 16 nettle, one flax, and one hemp. Findings from two samples were inconsistent. The results show that it is possible to distinguish common north European bast fibres from each other by using a combination of microscopic methods. Furthermore, by utilizing these combined methods, new and more reliable information could be obtained from historical ethnographic textiles, which creates new vistas for the interpretation of their cultural history.     

一种在轨海上多运动舰船目标检测和跟踪方法

传统遥感卫星图像处理采用在地面进行目标检测和跟踪处理的模式，卫星将拍摄到的图像数据下传至地面数据处理中心，由地面数据处理系统对接收到的遥感图像数据进行目标检测和跟踪。然而，随着遥感图像分辨率的不断提高，需要下传的数据量增大，导致星地数据传输的时间大大增加，最终造成目标检测和跟踪的时效性降低。针对上述问题，提出一种基于多特征量判别的Canny边缘检测和联合概率数据关联的在轨海上多运动舰船目标检测和跟踪方法。将该方法利用中国科学院微小卫星创新研究院的高分微纳卫星实测数据在模拟星载的嵌入式开发平台上进行验证，结果表明该方法能够在轨对海上多运动舰船目标进行快速、准确的检测和跟踪。     

Wearable skin-like optoelectronic systems with suppression of motion artifacts for cuff-less continuous blood pressure monitor

According to the statistics of the World Health Organization, an estimated 17.9 million people die from cardiovascular diseases each year, representing 31% of all global deaths. Continuous non-invasive arterial pressure (CNAP) is essential for the management of cardiovascular diseases. However, it is difficult to achieve long-term CNAP monitoring with the daily use of current devices due to irritation of the skin as well as the lack of motion artifacts suppression. Here, we report a high-performance skin-like optoelectronic system integrated with ultra-thin flexible circuits to monitor CNAP. We introduce a theoretical model via the virtual work principle for predicting the precise blood pressure and suppressing motion artifacts, and propose optical difference in the frequency domain for stable optical measurements in terms of skin-like devices. We compare the results with the blood pressure acquired by invasive (intra-arterial) blood pressure monitoring for >1500 min in total on 44 subjects in an intensive care unit. The maximum absolute errors of diastolic and systolic blood pressure were ±7/±10 mm Hg, respectively, in immobilized, and ±10/±14 mm Hg, respectively, in walking scenarios. These strategies provide advanced blood pressure monitoring techniques, which would directly address an unmet clinical need or daily use for a highly vulnerable population.     

矩形截面纤维流场压降及细颗粒扩散捕集效率

采用格子波尔兹曼气固两相流模型模拟扩散机制下矩形纤维捕集颗粒过程，研究纤维周围流场压降和扩散捕集效率随不同纤维布置方式的变化规律。把模拟得到的值（系统压降与捕集效率）与相同体积分数的圆柱纤维所对应的理论值相比，得到相应比例系数。分析规律，并采用Levenberg-Marquardt方法对其进行处理，得到相应比例系数的拟合公式。根据已有的圆形纤维压降与扩散效率的理论公式，再结合求得的拟合公式，对不同工况下的矩形纤维系统压降和扩散捕集效率进行计算。分析结果发现：矩形纤维系统压降与放置角度和长宽比均相关；而扩散捕集效率与长宽比成正比，与放置角度基本无关。     

光谱吸收式光纤气体传感器分辨率研究

气体传感器在环境检测、火灾与安全报警系统以及食品化工中具有广泛应用。分析了吸收式气体传感器的工作数学模型与光电检测电路的结构特点,探讨了提高吸收式光纤气体传感器分辨率的方法。     

Shear capacity of reinforced concrete columns strengthened with CFRP sheet

INTRODUCTION There is increased need in recent years for strengthening or rehabilitation of existing reinforced concrete structures adversely affected by overloading, construction material deterioration, seismic loads, structural deformation, etc. An effective method for increasing the shear capacity of reinforced concrete columns is the use of externally bonded carbon fiber reinforced plastic (CFRP) systems (ACI, 2002). FRP systems were first applied to reinforced concrete col-umns i…     

大气汽溶胶复合微粒子群的光学截面及红外发射率光谱的计算

在章[1]的基础上，根据M.L.AdenH和M.Merker的复合微粒子光散射理计算了汽溶胶大气中复合微粒子模型的光学特性，得到了汽溶胶的散射截面、吸收截面和消光截面以及红外发射率光谱，为研究大气红外传输提供了计算方法。     

全光纤无源耦合器件制作过程中的实践创新能力培养

结合本科生毕业设计“全光纤光功率比耦合器件的制备”的实践过程,在理论上基于光波的耦合波方程,对熔融拉锥单模光纤耦合器的功率耦合比与拉伸长度、拉伸位置和损耗的关系进行数值模拟,使本科生在毕业设计的有限时间内掌握一种基本软件工具。通过设计过程中的实践活动,学生在指导教师的科研理念引导下,利用实验室现有的设备制作出2×2型、单窗口1×2型1550 nm和1310 nm宽带耦合器, 并完成了对制备出的光纤耦合器的光功率和光谱的检测。在实践教学过程中,突出体现了知识、能力、科研素质提高和创新能力的培养。通过无源耦合器件的制备,培养了学生的实践动手能力和科研思维能力, 为今后的学习或就业奠定了良好的基础。     

光学分层成像法重建火焰温度场的理论和实验研究

提出了一种测量三维火焰温度的新方法 .根据光学分层成像理论 ,三维火焰可以看成若干个互相平行的二维发光断层的组合 .用高速摄像控制系统沿着某一固定方向对火焰进行分层聚焦摄像 ,得到一组辐射图像 ,每个图像都是其对应断层的聚焦像和其它断层离焦像的叠加像 ,运用图像反演算法 ,即可重建各断层的原始图像 ,再用彩色三基色测温方法 ,处理所得到的原始图像 ,即可建立火焰的三维温度场 .通过蜡烛火焰的试验 ,验证了该方法的可行性