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[Technology Management] niutoubaochuang DL : 0: 该程序用Mathmatics编制，用来完成牛头刨床机构的设计，可以分析机构的运动速度及加速度-procedures with the establishment of Mathmatics, Shaper used to complete the design, could analyze the velocity and acceleration
Date : 2008-10-13 Size : 2.71kb User : zwq
[Technology Management] niutoubaochuang DL : 0: 该程序用Mathmatics编制，用来完成牛头刨床机构的设计，可以分析机构的运动速度及加速度-procedures with the establishment of Mathmatics, Shaper used to complete the design, could analyze the velocity and acceleration
Date : 2025-12-23 Size : 2kb User : zwq
[Technology Management] Nonlinear_Fiber_Optics_Chinese_edition DL : 0: 光纤是20世纪的重大发明之一，其导光性能臻于完美，很难想像还会有更好的替代者。本书是光学、光子学和光通信领域的重要译著，分原理篇和应用篇两部分。原理篇包括光传输方程、群速度色散、自相位调制、调制不稳定性和光孤子、偏振效应、交叉相位调制、受激散射和光参量过程等内容，科学归纳为非线性光纤光学，侧重于基本概念和原理。应用篇内容包括光纤光栅、光纤耦合器，各种光纤干涉仪、光纤放大器和光纤激光器，光脉冲压缩技术，以及有关光纤通信系统和孤子波系统中的传输问题，体现了非线性光纤光学在光波技术、光通信领域的应用。全书理论严谨，处处结合实际例证，特别是紧密结合光通信领域的新成果与新问题，图文并茂，说清讲透，且各章都附有习题。本书适合作为光学、物理学、电子工程等专业的本科生和研究生教学用书，同时对从事光通信产业的工程技术人员和从事光纤光学、非线性光学领域研究的科技人员来说也是一本非常有用的参考书。 -Fiber is an important invention of the 20th century, one of the optical properties of reaching perfection, it is hard to imagine there will be a better replacement for him. This book is optical, photonics and optical communication field of translation, principles and application of Part Part two parts. Principles of articles, including optical transmission equation, group velocity dispersion, self-phase modulation, modulation instability and optical soliton, polarization effects, cross-phase modulation, stimulated scattering and optical parametric process, such as content, science summed up as non-linear fiber optics, with a focus on basic concepts and principles. Application papers will include fiber gratings, optical fiber coupler, a variety of fiber-optic interferometer, optical fiber amplifiers and fiber lasers, optical pulse compression technology, as well as optical fiber communication systems and soliton wave transmission system, reflects the non-linear fiber optics in light wav
Date : 2025-12-23 Size : 16.64mb User : 罗飞
[Technology Management] GU04 DL : 0: Model Reference Adaptive Flight Path Stabilization for Altitude and Velocity Hold
Date : 2025-12-23 Size : 166kb User : mo
[Technology Management] Potential_matlab DL : 0: ching in matches, path planning with the fuzzy artificial potential field method has been advanced in this paper. Focused on the existing problems of the conventional artificial potential field method, velocity vector has been introduced, modified potential field force function and the potential field for
Date : 2025-12-23 Size : 16kb User : bigboss
[Technology Management] niantanxing DL : 0: 粘弹性地震波的衰减不仅与传播时间有关，而且与子波的频率、速度场的分布、射线路经、地下构造展布都有关，因此，仅仅利用反Q滤波对粘弹性的吸收和频散做一维补偿不能完全的恢复地震波长的本来特征。-Viscoelastic seismic wave attenuation is not only associated with the propagation time, and and wavelet frequency distribution of the velocity field, the ray path, subsurface structures spread are related, using only inverse Q filtering viscoelastic absorption and dispersion do The one-dimensional compensation can not completely restore the original features of the seismic wavelength.
Date : 2025-12-23 Size : 11kb User : 金子奇
[Technology Management] Wind-speed-prediction DL : 0: 基于最小二乘支持向量机理论,结合某风电场实测风速数据,建立了最小二乘支持向量机风速预测模型。对该风电场的风速进行了提前1h的预测,其预测的平均绝对百分比误差仅为8.55 ,预测效果比较理想。同时将文中的风速预测模型与神经网络理论、支持向量机(support vector machine,SVM)理论建立的风速预测模型进行了比较。仿真结果表明,文中所提模型在预测精度和运算速度上皆优于其他模型。 -Based on least squares support vector machine theory, combined with a wind farm measured wind speed data, the establishment of a wind vector machine forecasting model of least squares support. The velocity of the wind farm were predicted in advance 1h, the mean absolute percentage error of only 8.55 of its forecast, forecast effect is ideal. While the text of the wind speed forecasting models and neural networks, support vector machines (support vector machine, SVM) wind speed prediction models were compared with established theories. Simulation results show that our proposed model on prediction accuracy and computing speed are superior to other models.
Date : 2025-12-23 Size : 842kb User : 杰
[Technology Management] backstepping-controller DL : 0: 关于自适应反步控制的双螺旋桨自动靠泊文献，最新的-The auto-berthing of a ship requires excellent control for safe accomplishment. Crabbing, which is the pure sway motion of a ship without surge velocity, can be used for this purpose. Crabbing is induced by a peculiar operation procedure known as the push-pull mode. When a ship is in the push-pull mode, an interacting force is induced by complex turbulent flow around the ship generated by the propellers and side thrusters. In this paper, three degrees of freedom equations of the motions of crabbing are derived. The equations are used to apply the adaptive backstepping control method to the auto-berthing controller of a cruise ship. The controller is capable of handling the system nonlinearity and uncertainty of the berthing process. A control allocation algorithm for a ship equipped with two propellers and two side thrusters is also developed, the performance of which is validated by simulation of auto-berthing
Date : 2025-12-23 Size : 819kb User : zhugb
[Technology Management] pulse-wave-conduction-velocity DL : 0: 研究了糖尿病患者尿蛋白排泄率与脉搏波传导速度的关系并给出了相应的数据-Diabetic patients with urinary albumin excretion rate was studied and the relationship between pulse wave conduction velocity
Date : 2025-12-23 Size : 245kb User : cyzgx123