儒家伦理价值及其评价

对儒家伦理的基本价值与基本特点以及局限性进行了疏理和分析，对于国内外学者对儒家伦理的肯定性评价和提出的有关儒学研究的理论方法作出了评介，在此基础上提出了研究儒家伦理的几点认识和启示．     

长江科学院2012年江源科学考察综述及思考

 全面介绍了长江科学院2012年对长江和澜沧江源区的河道形态、水文、泥沙、水资源变化及开发利用情况、水土流失现状及成因、水环境水生态状况及地质地貌等开展科学考察的全过程;着重论述了此次科学考察的目的、意义、任务和内容、组织形式;总结了高原上开展大型科学考察在专业及人员遴选、考察方案及技术准备、考察路线选择、身体条件准备、后勤保障等方面以及考察实施过程中的成功经验与存在的不足,提出的诸多建议可为今后开展类似科学考察借鉴。     

A free space frequency‐time‐domain technique for electromagnetic characterization of materials using reflection‐based measurement

In this report, a free space frequency‐time‐domain technique is presented for characterizing the electrical properties and thickness of the sample using multiple reflections and fabry‐perot resonance phenomenon. The retrieval of constitutive electromagnetic parameters of the sample has been carried out by comparing the measured reflection coefficient data from the sample at two different incident angles. The relative permittivity as well as relative permeability along with the thickness of different samples viz., beryllia, silicon, and plexiglass have been evaluated with high accuracy in the frequency range 1 to 15 GHz. The method is also experimentally validated by successfully reconstructing the unknown material properties of two different samples. The unique advantage of this method lies in non‐requirement of any prior knowledge of the sample's thickness for measuring the complex relative dielectric constant as well as relative permeability of the sample. To determine the electromagnetic properties of the sample, the sole knowledge of reflection coefficient data are needed. Moreover, the method does not involve any additional measurement for the reference calibration. The simple, cost‐effective proposed scheme is quite useful in many applications like accurate determination of signal strength in indoor wireless communication, through wall imaging, food industry, and so on.     

时间门方法在天线间接时域测量中的应用与验证

针对矩形暗室内多径反射对天线测量精度的影响,引入了间接时域加门的方法;该方法利用逆傅里叶变换对宽带扫频数据进行处理获得天线的时域响应,然后采用时间门去除多径信号,变换到频域后可获得较准确的天线电参数,如方向图等;同时为了减少时域响应的泄漏,进一步提高测量精度,采用了基于频域加窗的逆傅里叶变换;对该方法进行仿真分析和实验验证,结果表明采用该方法得到的方向图与标准方向图基本吻合,具有一定的有效性和实用性。     

英语委婉语的心理映射

英语委婉语作为英语语言词汇中极为活跃的一分子是社会交际活动的产物,它反映了英语国家人们的风俗习惯、审美情趣、文化素养.在实际应用中,人们为了避讳、礼貌、欺骗、美化等交际目的而频频使用委婉语,从而增强表达效果,完成漂亮的交际活动.     

Measuring and evaluating bitumen coverage of stones using two different digital image analysis methods

The most used pavement for paved roads in the world is asphalt. It is therefore important that the asphalt is as durable as possible to avoid expensive repairs of the roads. One important factor of the durability of the road is the adherence between the stones and the bitumen that holds the stones together. The affinity is tested by the so called rolling bottle test, where one put stones covered in bitumen in a bottle with water and let it roll on a bottle rolling machine. After a while the degree of bitumen coverage is estimated. In this paper, a method to estimate the degree of bitumen coverage using image analysis has been developed instead of the manual estimation that is used today. The presented method works for all colors of the stones and is based on the fact that bitumen reflects light much better than raw stones. A turntable that is rotated somewhat between images is used together with a light source in shape of a quarter of a circle to get as much specular reflections as possible. Then the amount of detected reflections is used to estimate the degree of bitumen coverage. To be able to compare the result with something close to ground truth, the method has been evaluated on lighter stones and compared with a second image analysis method that works well for lighter stones, and the results are promising.     

房间内早期反射声方向分布的声强法测量

早期反射声的方向分布,对空间感音质参量的评价具有重要意义。室内音质不仅与反射声到达的时间、能量有关,而且与反射声到达的方向特性具有密切的关系,反映反射声方向特性的客观音质参量在音质评价中得到了越来越多的应用。根据声强测量的互谱法原理,论文提出采用不在同一平面上的任意四只传声器进行瞬时声强的测量,经合成得到各频带早期反射声方向分布特性的方法。该测量方法弱化了常规传声器阵列测试方法中对传输器位置的严格要求,同时也可有效降低由于传输器之间的相位不匹配带来的测量误差,因而更适合于现场测量。运用该测量方法,在消声中对单入射声条件下的入射方向进行了实验测量验证,表明其具有较高的准确性,同时对一实际房间中早期反射声的方向分布进行了测量,给出了直角坐标系中三个相互垂直平面上的反射声能量与入射方向的分布图。测量结果表明该测试方法可应用于实际房间中早期反射声方向分布的测量。     

建构高校心理健康课程教育体系的几点思考

高校开展心理健康教育的过程中,各校纷纷在课程教育方面做了探索,并取得了良好的效果,但是在课程体系的建设上还有许多理论与实践的问题需要进一步研究。本课题组通过实践和调查,对心理健康教育课程的基本地位、基本原则、教学目标和内容、基本模式和教学手段等等做了初步的研究,提出了几点思考,以利于心理健康课程教育的规范建设,从而发挥心理健康教育的积极功能。     

Scaling law for penetration depth in laser welding

A simple scaling law for penetration depth in laser welding is proposed considering heat flow characteristics and multiple reflections. First, a process parameter is identified that is proportional to the surface temperature during laser processing, and the parameter is modified by accounting for the effect of multiple reflections. As a result, the normalized penetration depth is expressed as a function of a single parameter that is a combination of laser intensity, interaction time and an indicator of the strength of multiple reflections. The obtained scaling law is applicable not only to conduction mode welding but also to keyhole mode welding, and provides insight into why and how penetration depth changes in a particular way. Systematic and extensive welding experiments were conducted using a 2 kW multi-mode fiber laser and two types of steels. The experimental results were in good agreement with the proposed scaling law.