Atomic Emission Spectrum and Quantum Interference Effects in the Atom-field Coupling System; interferometry by holography differential interference contrast microscope 光场与原子相互作用系统中原子发射谱和量子干涉效应
The voigt profile function has been used to simulate ICP emission spectra. Artificial neural network has been used to correct simulated spectral overlap interference and satisfactory results have been obtained. 利用Voigt线型函数模拟ICP发射光谱,并用人工神经网络方法对模拟的光谱重叠干扰作了研究,得到了满意的结果。
Simulation and Analysis on Radiated Emission Interference of Differential Mode Current in SMPS 开关电源差模电流辐射干扰的模拟与分析
Study of Acoustic Emission Sensor with Optical Fiber Fabry-Perot Interference 光纤Fabry-Perot干涉式声发射传感器的研究
Based on characteristic of signal of wide band sound emission receiver sensor, the improved plan of circuit design is given for the signal and noise interference in engineering application. The circuit of input match and noise immunity are introduced especially. 针对工程实际应用过程中遇到的大信号干扰和噪声干扰问题,通过分析宽频带声发射接收传感器接收信号的特点,提出了改进的电路设计方案,对输入匹配及抗大信号干扰电路进行了重点分析。
Spontaneous Emission from Multi level System via Quantum Interference 基于量子干涉效应的多能级系统自发辐射研究
Suppression Method for Conducted Emission Interference of Integrated Motor System 一体化电机系统中传导干扰抑制方法的研究
Main NDT CE techniques such as the building dynamics, impact echo, ultrasonic echo, acoustic emission, radar, laser interference technique and infrared imaging are briefly discussed on their principle, application area, limitations and further research needed from the application point of view. 从应用的角度对NDT-CE中常用的振动分析、冲击回波法、超声脉冲回波法、声发射、雷达、激光干涉以及红外线成象等技术的原理、应用、局限性和发展前景作了简要介绍。
This paper describes application of Acoustic Emission in crack detection during the blade beam fatigue lest and analyzes some interference sources encountered in test. 本文介绍了声发射技术在直升机桨叶大梁疲劳试验裂纹监测中的应用,并分析了现场试验中遇到的几种干扰及其辨别。
The visible-light communication utilizing the white LEDs is a kind of optical wireless communication characterized by high emission power rate, spreading everywhere, electromagnet free interference and energy-saving, etc. 可见光通信是一种采用白光LED作为光源的光无线通信技术,具有发射功率高、无处不在、无电磁干扰、节约能源等优点。
A method for the determination of sulfur and phosphorous in glass by inductively coupled plasma emission spectrometry ( ICP-AES) was reported. The sample dissolution methods, the selection of spectral lines, the interference of coexistent elements and the working parameters of the instrument were studied. 通过对玻璃试样中硫、磷的分解方法、分析线选择、共存元素光谱干扰和仪器最佳分析条件等方面的研究,建立了ICP-AES测定玻璃中硫、磷的方法。
The amplified spontaneous emission ( ASE) and parametric four& wave-mixing ( PFWM) in barium vapor are studied under the experimental conditions of two-photon resonance. The mechanisms responsible for this competition can be attributed to the destructive interference between ASE and PFWM. 研究了在双光子共振条件下,Ba蒸气中放大自发辐射(ASE)与参量四波混频(PFWM)的竞争过程,其机制可归结为ASE与PFWM之间的干涉相消。
Both the stimulation emission and multi-photon interference can cause the photon bunching. In experiment and theory, we demonstrate that the two processes come from photon indistinguishability. 进一步,我们从理论和实验上揭示了由受激辐射产生的光子聚束与光子干涉产生的光子聚束本质都来自于光子的不可区分性。
Although spontaneous emission is fed into the cavity fields, destructive interference occurs in the fluctuations of a pair of collective modes. 尽管在腔场中存在自发辐射,但在腔场形成的一对集合模的起伏中仍会出现相消干涉。
Although inductively coupled plasma atomic emission spectrometry can analyze multiple elements simultaneously with comparable high sensitivity, the standard addition method is still used to eliminate matrix interference at the expense of sensitivity, and the equipment is relatively expensive and has lower penetration rate. 尽管电感耦合等离子体发射光谱法具有同时分析多种元素,灵敏度较高的特点,但是方法仍然采用标准加入法,以牺牲灵敏度为代价,且仪器相对昂贵,普及率比较低。
Firstly, the concept and the power spectrum estimate method of interference temperature are introduced. Then, this chapter gives a scheme of dynamically obtaining adaptive emission mask based on measurement of interference temperature to adapt to spectrum environment and be compatible with FCC spectral mask. 首先对干扰温度的概念及其谱估计方法进行了简单的介绍,接着从自适应频谱环境和兼容FCC频谱模板的角度出发,建立了基于干扰温度测量来动态构建CUWB系统自适应辐射掩蔽的机制。
The space location of eight sensors by the method of antisymmetric distribution and reasonable settings of acoustic emission testing parameters could remove the most of the interference noise, and ensure the acoustic emission signals authenticity, rationality and reliability. 在进行声发射信号采集前,通过八个传感器反对称分布的空间定位以及对声发射仪检测参数的合理设置滤除绝大部分干扰噪声,确保了采集到的声发射信号的真实性、合理性和可靠性。
Carbon emission response mechanism of terrestrial ecosystem by land use change was concluded in the aspects of natural interference, land categories conversion and land administration. 从自然干扰、土地类型转换和土地经营管理等三方面系统归纳了土地利用变化的碳排放响应机理。
Many novel physical phenomena such as coherent population trapping, lasing without inversion, electromagnetically induced transparency and spontaneous emission cancellation based on quantum interference have been discovered. 基于量子干涉效应,产生了许多新的物理现象,如相干布居捕获、无反转激光、电磁感应透明和自发辐射相消等等。
Compared with the usual single optical scheme, two optical fields can greatly suppress the inelastic loss resulting from spontaneous emission by the destructive quantum interference. 与通常所用的单色光场方案相比,利用量子相干效应,双光场方案可以在很大程度上降低自发辐射引起的非弹性碰撞损失。