检索结果-南通市图书馆

STUDY ON THE LAW OF ALTERATION CONCERNING PHYSICAL AND CHEMICAL PROPERTIES OF A—H BONDS IN HYDRIDES——HOW TO CALCULATE THE vibrating FREQUENCY OF A—H BOND

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1992年第19期37卷 1618-1622页

作者：余训民杨道武王坚 Jingzhou College of Education Hubei 434100 PRC

The vibrating frequencies of a bond are considered to be important data, according to which it can be decided whether the bond is strong or weak and the steadiness of the molecules can also be figured out. On account of the limit of the measured experimental data, it is theoretically important and practically useful to establish an accurate method of

关键词： vibrating frequency density of bond charge atomic effective nuclear charge

PRINCIPLE OF STATIONARY MUTUAL POTENTIAL ENERGY AND OPTIMAL DESIGN OF vibrating STRUCTURES

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1989年第13期34卷 1081-1085页

作者：李旭 Tsinghua University Beijing

The principle of stationary mutual potential energy, which was introduced by Shield and Prager, can be considered as an extension of the principle of minimum potential energy from one-loading system to two-loadlng system. By this stationary principle, we can obtain the necessary and sufficient condition of optimality for structural design.

关键词： principle of stationary mutual potential energy vibrating structure minimum-weight design ealculus of variation elastic sandwich beam

DYNAMIC BEHAVIOUR OF LIQUID DISPERSION IN A vibrating PLATE TANK

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 1990年第1期 79-89页

作者：巢守柏范正 Institute of Chem.Metallurgy Academia SinicaBeijing

In this paper a new model of the drop breakage in a vibrating plate tank has been developed by a me-chanism based on the shearing stress in the neighborhood of the holes in the plates as a breakage force,andthe coalescence of drops may be dealt with by the process of gas molecule *** on the theoreticalanalyses,simulation of drop breakage and coalescence which are random processes has been carried out byMonte-Carlo simulation *** parameters of breakage and coalescence rate have been obtained.

关键词： breakage vibrating neighborhood collision Probability DYNAMIC Weber shearing drops daughter

vibrating “Mini-washing” Washing Machine Design

在线全文

学校读者我要写书评

暂无评论

Vibrating “Mini-washing” Washing Machine Design

Predict acoustic field of vibrating beams by Helmholtz integral equation and BEM

2008 IEEE 9th International Conference on Computer-Aided Industrial Design & Conceptual Design

作者： Siwei Wang~1 Zheng Yang~2 1 Department of Design School of Urban Design Wuhan University China 2 Department of Design SchOol of Urban Design Wuhan University China

＜正＞The paper puts forward a whole-new model of washing according to the main problems existed in the current mini-washing machine and ordinary big washing *** the meanwhile,it points out another new way of washing-vibrating style, combining the principles of Wheel washing machine and Drum washing machine,the two main kinds of washing machines in the market,and also analyzes its rate of clean *** style fuses scrubbing and beating,the two traditional ways of washing,and integrates their advantages as *** features in high rate of clean washing,water-saving,little damage to clothes,evenly-washing,and no twist and so on.

关键词： Mini-washing vibrating Washing Machine.

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Chinese Journal of Acoustics 1993年第2期12卷 117-126页

作者： YU Xingzhuo, HU Guoshen and ZHOU Yu(Dep. of Mech. Engineering (I) Huazhong University of Science & Technology , Wuhan 430074)

New method of predicting the acoustic field radiation of vibrating bodies is presented. It is based on the Helmholtz integral equation and boundary element method and applicable to the use of computers. The acoustic field of the cantilever beams has been calculated and measured. Test results have proved the effectiveness of the predicting method.

关键词： vibrating Acoustic field Boundary element.

Research on CAD of Activatorof vibrating Screen

在线全文

学校读者我要写书评

暂无评论

International Journal of Mining Science and Technology 2000年第1期21卷 83-86页

作者：孙海波姚新港

Based on Autodesk Mechanical Desktop (MDT), three main. approaches of parametric part design including program-drive, table-drive and interactive-drive were studied. By using Visual Basic and ActivesX automation component programming, access database, parametric drawing and mechanism analysis were integrated. h probes into how to design mechanical products quickly and effectively by means of CAD.

关键词： vibrating screen activator parametric design MDT ActiveX automation

Safety and efficacy of vibrating capsule in the treatment of functional constipation:a single center randomized controlled study

在线全文

学校读者我要写书评

暂无评论

China Medical Abstracts(Internal Medicine) 2022年第1期39卷 42-43页

作者： ZHU Jiahui Dept Gastroenterol Changhai HospNaval Med UnivShanghai 200433

Objective Based on the previous animal experiments,to preliminarily explore the safety and efficacy of self-developed new smartphone-controlled vibrating capsule(VC)in the treatment of patients with functional constipation(FC).Methods At the Outpatient Department of Gastroenterology,Changhai Hospital,Naval Medical University,24 patients with FC were prospectively enrolled.

关键词： capsule vibrating constipation

Enhanced vibrating Particles System Algorithm for Parameters Estimation of Photovoltaic System

在线全文

学校读者我要写书评

暂无评论

Journal of Power and Energy Engineering 2019年第8期7卷 1-26页

作者： Patrick Juvet Gnetchejo Salomé Ndjakomo Essiane Pierre Ele René Wamkeue Daniel Mbadjoun Wapet Steve Perabi Ngoffe Laboratory of Technologies and Applied Sciences University of Douala Douala Cameroon Higher Technical Teacher Training College of Ebolowa University of Yaoundé Yaoundé Cameroon Electrical Engineering and Telecommunications Department National Advanced School of Engineering University of Yaoundé Yaoundé Cameroon School of Engineering University of Quebec in Abitibi-Temiscamingue (UQAT) Rouyn-Noranda QC Canada

To evaluate the performance of a photovoltaic panel, several parameters must be extracted from the photovoltaic. These parameters are very important for the evaluation, monitoring and optimization of photovoltaic. Among the methods developed to extract photovoltaic parameters from current-voltage (I-V) characteristic curve, metaheuristic algorithms are the most used nowadays. A new metaheuristic algorithm namely enhanced vibrating particles system algorithm is presented here to extract the best values of parameters of a photovoltaic cell. Five recent algorithms (grey wolf optimization (GWO), moth-flame optimization algorithm (MFOA), multi-verse optimizer (MVO), whale optimization algorithm (WAO), salp swarm-inspired algorithm (SSA)) are also implemented on the same computer. Enhanced vibrating particles system is inspired by the free vibration of the single degree of freedom systems with viscous damping. To extract the photovoltaic parameters using enhanced vibrating particles system algorithm, the problem can be set as an optimization problem with the objective to minimize the difference between measured and estimated current. Four case studies have been implemented here. The results and comparison with other methods exhibit high accuracy and validity of the proposed enhanced vibrating particles system algorithm to extract parameters of a photovoltaic cell and module.

关键词： PV Cell Modeling vibrating Particles System Parameter Estimation Single/Double Diode Model

ON STABILIZATION AND POLE ASSIGNMENT FOR vibrating ELASTIC SYSTEMS OF SLENDER VEHICLE

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1987年第12期32卷 806-809页

作者：朱广田刘彦群 Institute of Systems Science Academia Sinica Beijing Department of Mathematics Hebei University Baodingf we neglect the aerodynamic and internal damping effects and take angular velocity feedback control law for the control force then without losing generality the vibrating elastic system of a slender vehicle can be described by the following partial differential

If we neglect the aerodynamic and internal damping effects, and take angular velocity feedback control law for the control force, then, without losing generality, the vibrating elastic system of a slender vehicle can ... 详细信息

关键词： vibrating slender neglect aerodynamic damping angular length assignment algebraic holds