双波理论中波函数的选取

双波理论是一种非统计量子力学理论，它是决定性理论的一种新尝试。根据双波理论的基本假设，推导和归纳了双波理论中波函数应如何选取。     

双波理论中波函数的选取

双波理论是一种非统计量子力学理论，它是决定性理论的一种新尝试。根据双波理论的基本假设，推导和归纳了双波理论中波函数应如何选取。     

双波理论中波函数的选取

双波理论是决定性描述单个量子体系状态的一种尝试。以束缚体系为例，说明双波理论中两个波函数的选取方法，推出适用于单个体系的爱论菲斯特定理。     

教学实验中不同方法测定安痛定注射液中安替比林含量的比较

教学实验中有关安痛定注射液中安替比林的测定方法采用的是双波长法,现采用高效液相色谱法(High Performance Liquid Chromatography,HPLC)对其进行了测定,并对两种方法的结果进行了比较和评价。采用t检验法对两组数据进行了比较,说明在学生实验中可以以HPLC法代替双波长法进行安替比林的含量测定。此项实验的目的:(1)使学生更深入地理解分析方法的原理,并且懂得同样的化合物可选择不同的分析方法;(2)使学生将统计检验的方法运用到具体案例中。     

均匀电场中带电谐振子双波函数描述的经典极限研究

在给出均匀外电场带电谐振子的双波描述基础上,采用ｎ→∞,ｈ→０,但保持Ｅ（ｎ,ｈ）为能量实际测量值的综合极限方法,进一步讨论带电谐振子双波描述的经典极限,结果是理想的。     

双波谐波齿轮中柔轮变形波的波形分析

本文简述了谐波齿轮传动的工作原理，分析了双波谐波齿轮中柔轮任一点的径向变形Δ随转角Φ的变化规律，给出了二者的函数关系表达式，借助计算机作为工具作出了二者的关系曲线。     

利用计算机处理记录式光谱图

将记录式光谱仪的谱图用扫描仪输入计算机,通过适当的程序对其谱图进行处理,从中提取出吸收曲线及坐标轴,把光谱曲线数字化,进而可应用多组分同时测定及双波长法、导数光谱法,从而使现有仪器的检出极限提高到一个新台阶,使原有仪器的性能有所提高.     

实践教学论:回归课堂生活的研究

实践教学论是与理论教学论相对的教学理论,所谓理论教学论是指以教学理论为研究对象的教学论,其实质是一种教学理论的再研究,是一种书斋文献式的研究。而实践教学论是指以教学生活本身为研究对象的教学论,其实质是一种教学研究,是一种深入“课堂田野”的实践研究。实践教学论正在逐渐发展成为一种主流教学理论。     

利用计算机处理记录式光谱图

将记录式光谱仪的谱图用扫描仪输入计算机，通过适当的程序对其谱图进行处理，从中提取出吸收曲线及坐标轴，把光谱曲线数字化，进而可应用多组分同时测定及双波长法、导数光谱法，从而使现有仪器的检出极限提高到一个新台阶，使原有仪器的性能有所提高。     

实践教学论论纲

实践教学论是与理论教学论相对的教学理论 ,所谓理论教学论是指以教学理论为研究对象的教学论 ,其实质是一种教学理论的再研究 ,是一种书斋文献式的研究。而实践教学论是指以教学生活本身为研究对象的教学论 ,其实质是一种教学研究 ,是一种深入“课堂田野”的实践研究。实践教学论的提出与完善动摇了传统主流的理论教学论“一枝独秀”的局面。     

（2＋1）维Burgers系统的周期孤立波解

将Hirota法中的测试函数用新的测试函数来替代,即利用扩展的Hirota法构造Burgers方程的新的周期孤波解、周期双孤波解、双周期双孤波解．显然,扩展的Hirota方法也可以解其他一些非线性发展方程．     

（2＋1）-维流体力学型系统的周期孤立波解

利用扩展的Hirota双线性方法求解(2+1)-维流体力学型系统,得到一些精确周期孤立波解、双周期孤立波解、双周期双孤立波解.显然,这种方法同样适用于其他一些非线性发展方程.     

Study of interaction between shock wave and unsteady boundary layer

ＩＮＴＲＯＤＵＣＴＩＯＮＳｈｏｃｋｗａｖｅｒｅｆｌｅｃｔｉｏｎｆｒｏｍａｗａｌｌｓｕｒｆａｃｅ,ｄｉｆｆｒａｃｔｉｏｎａｌｏｎｇａｃｕｒｖｅｄｓｕｒｆａｃｅ ,ｐｒｏｐａｇａｔｉｏｎｔｈｒｏｕｇｈａｃｈａｎｎｅｌｏｒａｔｕｂｅｗｉｔｈｖａｒｙｉｎｇｃｒｏｓｓ     

网络经济对传统经济周期的影响

康德拉季耶夫提出的长波周期假说是最早描述经济长期波动的理论。熊彼特在经济周期理论中从多个方面对长波的形成原因和运行状况进行了分析说明,认为在经济长波中技术创新是根本原因,“四阶段”模式是运动轨迹,“三周期嵌套”模式是内在循环,外部变化是影响因素。基于熊彼特经济周期理论和新熊彼特学派理论,从技术创新视角分析历史上的五次经济长波,可以发现每次长波的上升和下降都有相似之处,即长波的繁荣都由重大技术创新所推动,长波的衰退都由技术创新的衰竭所导致,而五次长波从繁荣到衰退的“拐点”也必然由股市泡沫的破裂所引发。在新一轮产业革命方兴未艾之时,特别在当前全球疫情蔓延的冲击下,中国应该提高自身技术创新能力,以在未来的发展中占得先机。     

Design,construction and ocean testing of wave energy conversion system with permanent magnet tubular linear generator

In this paper, the design, construction and ocean testing of a wave energy conversion system are studied. Based on the motion characteristics of double buoys in ocean waves, a wave energy conversion system with permanent magnet tubular linear generator (PMTLG) is proposed to convert ocean wave energy into electricity. The wave energy conversion system was installed in the Yellow Sea near Lianyungang, China. The ocean test results indicate that it had dynamic and static performance, and obtained an expected amount of electricity. The calculation result indicates the average output power was about 1,000,W, and the conversion efficiency from wave energy into electricity was 1.4%,. In addition, the wireless data communication, mechanics and oceanography were also discussed.     

PbSe quantum dots for an evanescent wave excited fiber amplifier

A novel quantum dots (QDs) optical fiber amplifier was proposed and demonstrated. It was fabricated by dipcoating the PbSe QDs doped sol onto the taper region of fiber coupler. The PbSe QDs was synthesized according to a colloidal method. A lower refractive index sol was also synthesized as the host of PbSe QDs. A standard single mode fiber was used to make the fusion tapered fiber coupler which had double input and output ports. With the simple structure, a signal and a pump can be injected into the amplifier and excite the PbSe QDs through evanescent wave. The experimental results indicated that the amplified light wave was observed at 1 550 nm wavelength with 980 nm wavelength laser diode as pump.     

由平面电磁波的反射导出TM波的模式本征方程

利用平面电磁波在界面上的反射和折射理论,分析垂直偏振波在芯层介面上的反射,得出沿Z方向传播的TM波在全反射时的相移,利用横向谐振重要条件得到TM模的模式本征方程。     

Modern travelling wave based fault location techniques for HVDC transmission lines

The modern travelling wave based fault location principles for transmission lines are ana-lyzed. In order to apply the travelling wave principles to HVDC transmission lines, the special tech-nical problems are studied. Based on this, a fault locating system for HVDC transmission lines is developed. The system can support modern double ended and single ended travelling wave princi-ples simultaneously, and it is composed of three different parts: travelling wave data acquisition and processing system, communication network and PC based master station. In the system, the fault generated transients are induced from the ground leads of the over-voltage suppression ca-pacitors of an HVDC line through specially developed travelling wave couplers.The system was applied to 500 Kv Gezhouba-Nanqiao(Shanghai)HVDC transmission line in China. Some field op- eration experiences are summarized, showing that the system has very high reliability and accu- racy,and the maximum location error is about 3 km(not more than 0.3% of the total line length). Obviously, the application of the system is successful, and the fault location problem has finally been solved completely since the line operation.     

证明光波的振动方向对传播方向没有对称性

利用麦克斯韦方程组证明光波的振动方向对传播方向没有对称性，说明光波是横波。还证明了光波就是一定波段范围内的电磁波。