搜索结果: 1-15 共查到“工学 Harmonic”相关记录34条 . 查询时间(0.097 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Calculation of high-order harmonic generation of atoms and molecules by combining time series prediction and neural networks
时间序列预测 神经网络计算 原子分子 高阶谐波生成
2023/5/9
High-order harmonic generation (HHG) from the interaction of ultra-intense laser pulses with atoms is an important tabletop short-wave coherent light source. Accurate quantum simulations of it present...
Cornell researchers have developed nanostructures that enable record-breaking conversion of laser pulses into high-harmonic generation, paving the way for new scientific tools for high-resolution imag...
Three-Dimensional Unsteady Multi-stage Turbomachinery Simulations using the Harmonic Balance Technique
Three-Dimensional Unsteady Multi-stage Turbomachinery Simulations Harmonic Balance Technique
2015/7/2
In this paper, we propose an extension of the Harmonic Balance method for three dimensional, unsteady, multi-stage turbomachinery problems modeled by the Unsteady Reynolds-Averaged Navier-Stokes (URAN...
It is known that superpositions of ridge functions (single hidden-layer feedforward neural networks) may give good approximations to certain kinds of multivariate functions. It remains unclear, howeve...
Inhomogeneity of the phase space of the damped harmonic oscillator under Levy noise
Inhomogeneity of the phase space damped harmonic oscillator Levy noise Statistical Mechanics
2012/4/19
The damped harmonic oscillator under symmetric L\'{e}vy white noise shows inhomogeneous phase space, which is in contrast to the homogeneous one of the same oscillator under the Gaussian white noise, ...
The Harmonic Theory; A mathematical framework to build intelligent contextual and adaptive computing, cognition and sensory system
Harmonic Theory mathematical framework sensory system Artificial Intelligence
2011/10/9
Abstract: Harmonic theory provides a mathematical framework to describe the structure, behavior, evolution and emergence of harmonic systems. A harmonic system is context aware, contains elements that...
Intermodulation and Harmonic Distortion in Slow Light SOA based Microwave Photonic Phase Shifters
Intermodulation Harmonic Distortion Microwave Photonic Phase Shifters
2015/5/15
We theoretically and experimentally evaluate the harmonic and intermodulation distortion in a SFL phase shifter which comprises an EOM, a SOA under CPO regime and an optical filter.
Parametric studies of the performance of particle dampers under harmonic excitation
particle damper parametric study discrete-element method impact momentum
2014/4/10
The performance of particle dampers under dynamic loads is very complicated and highly nonlinear;consequently, no guidelines currently exist for determining the optimum strategies for maximizing their...
Control Design for Harmonic Disturbance Rejection for Robot Manipulators with Bounded Inputs
tracking control of robot harmonic disturbance rejection internal model principle
2011/8/4
Currently most of control methods are of one degree of freedom (1-DOF) control structure for the robot systems which are affected by unmeasurable harmonic disturbances, at the same time in order to ob...
Harmonic Distortion in Slow Light SOA based Microwave Photonic Phase Shifters
Fiber optics communications Fiber optics links subsystems
2015/6/4
We present a theoretical and experimental evaluation of any general order harmonic distortion in a SFL phase shifter based on CPO in a SOA and propose different optical filtering implementations for d...
三相不平衡系统谐波传输特性及其抑制（Harmonic Transmission Characteristic and Suppression of Unbalanced Power System）
不平衡系统 谐波传输特性 谐波抑制 总谐波畸变率
2010/8/17
以Yd11牵引变压器为例分析了不平衡电力系统多谐波源的传输特性，测试4种不同负载接入方式以揭示多谐波源之间的相互作用。采用4种不同的单相无源滤波器接入方案来补偿不平衡的谐波成分，得出当无源滤波器与非线性负载位于相同变电所同一相时具有最好的滤波效果，滤波后系统电流总谐波畸变率平均为4.2%，当滤波器与非线性负载位于不同变电所，在相同相时具有较好的滤波效果，补偿后系统电流总谐波畸变率平均为5.3%，但...
Collective effects for long bunches in dual harmonic RF systems
resistive impedance incoherent motion halo formation coherent dipole instability
2009/7/31
The storage of long bunches for large time intervals needs flattened stationary buckets with a large bucket height. Collective effects from the space charge and resistive impedance are studied by look...
In-Band OSNR Monitoring via Slow-Light Enhanced Third Harmonic Generation in Silicon Photonic Crystal Waveguides
In-Band OSNR Monitoring Slow-Light Enhanced Third Harmonic Generation Silicon Photonic Crystal Waveguides
2015/7/16
We demonstrate optical performance monitoring of in-band OSNR in 40Gbit/s Return-to-Zero signals via slow-light enhanced third-harmonic generation in silicon photonic crystal waveguides, improving on ...
Blue and Ultra-Violet Radiations Using Quasi-Phase-Matched Second Harmonic Generation Devices
SHG QPM Bulk Waveguide
2009/6/8
Quasi-phase matched (QPM) second-harmonic generation (SHG) device offers various application for blue and ultra-violet (UV) radiations. Advanced poling technology made it possible to realize micron an...
模糊K-Harmonic Means聚类算法
聚类中心 条件概率 Folkes & Mallows指标
2009/6/5
对K-Harmonic Means算法进行扩展，考虑到数据点对不同类的隶属关系，将模糊的概念应用到聚类中，提出了模糊K-Harmonic Means算法，推导出聚类中心和模糊隶属度的迭代公式．在中心迭代聚类算法统一框架的基础上，推导出FKHM算法聚类中心的条件概率表达式以及在迭代过程中的数据加权函数表达式．最后，用Folkes & Mallows指标对聚类结果进行评价．实验表明，模糊K-Harmo...