起重机力矩限制器单片机控制系统分析

介绍起重机力矩限制器的工作原理,利用AT89C52单片机设计起重机力矩限制器控制系统。     

基于THPZKZ-1型中央空调系统温度控制实验的研究

首先,介绍THPZKZ-1型中央空调系统的实验平台。然后,以此平台为基础,设计单回路温度控制实验,通过临界比例度法整定PID参数。最后,分析实验结果,总结控制规律。     

开展综合设计性实验 培养大学生创新能力

结合高等学校自身情况,从大学生进行设计性实验角度阐述如何培养新时代下大学生的创新能力,并通过探讨大学生自主设计性实验的开展,对大学实验教学提出一定建议。     

中职模拟电子技术实验课程改革

模拟电子技术课程是电力类专业的一门重要的技术基础课,而实验是电子技术课程教学中不可缺少的重要环节。通过实验教学改革使学生掌握基本电子电路的设计方法,能激发学生的学习兴趣,锻炼其动手能力,提高分析问题和解决问题的能力。     

虚拟现实技术在高等职业教育中的应用探讨

虚拟现实应用于高等职业教育是教育技术发展的一个飞跃,也为探索人才培养模式提供了技术平台。虚拟现实技术在高等职业教育的教学方法、教学手段、教学内容、课程体系、教学实践、教学实训基地建设上做出技术支持。     

影响排球比赛发球的因素及调整对策

从心理学角度入手,分析研究运动员在排球比赛中临场的心理状态、自我调节及心理训练方法,对其提出正确的心理定位和建议对策。     

Modeling of polishing process for electric stainless-steel kettle

The market of stainless electric steel kettles is growing significantly, but the main mechanism for polishing kettles via traditional handwork operations limits the growth of electric kettle manufacturing. Based on the successful multi-tool automatic polishing system for electric stainless steel kettles, regression analysis and orthogonal tests were employed to construct a polishing process model, with a purpose to improve the automatic polishing technology for electric stainless steel kettles. The model reveals the relationship between the surface roughness and processing parameters including gringding depth, abrasive tangent speed, workpiece rotating speed and axial feeding speed. Simulation and experimental results are in agreement,which shows that this modeling method is feasible in practice, and it can also be used as a guidance for planning automatic polishing process of electric stainless-steel kettles.     

Characteristics of electricity consumption of different industry types considering atmospheric condition

Reducing greenhouse gases (RHG) is going on actively in the international movement. In the field of architecture, RHG is an inevitable work. To establish a plan for RHG, firstly we need to reduce energy consumption. Greenhouse gas generated by energy consumption is the main cause of global warming. For this we should know that how much electricity consumption we use. The research targets of this study are commercial buildings with various businesses. Their electricity consumption was analyzed by business units rather than buildings. Each business was divided into 13 sectors according to industrial classification and electricity consumption was analyzed for each industry. For commercial buildings, the electricity consumption is done by the private sector and construction management is an autonomy system in private instead of an integrated management system. In this study, we classified and analyzed the electricity consumption characteristics according to collected data, analyzed the relationship between the electricity consumption with atmospheric temperature through SPSS, and developed an electricity prediction model.     

Torsional effect of space structure in frequent earthquakes

Taking a concrete frame supporting space structure as the research object, we systematically studied its lateral-torsion coupling effect of reverse problems in consistent earthquake excitation. Firstly, based on its reverse forms and features, we put forward a mechanical analysis model (flexibility layer model) and a calculation method using the response spectrum method and the weighted average method, and verified their validity and feasibility using case analysis. The result shows that the translation displacement change trend of the space structure is basically the same whether reverse exists in the supporting structure or not, but the supporting structure torsion has an effect on the displacement with a relative increase of 10?.     

Rational scale of urban rail transit network based on system dynamics

Optimization design and experimental research for space intelligent structurecapacity, high efficiency and low pollution. Estimating URT network scale is the key to ensure the scientificity and feasibility of its construction. The existing studies on rational scale of URT network have not dealt with the interaction of supply and demand. This paper describes the establishment of a system dynamics model of rational URT network scale determination, considering the interaction between URT construction and city social economic development as well as the dynamic equilibrium of capital supply and traffic demand, and the verification of the model validity by applying it to the case of Wuhan City’s URT construction.