摘要：An energy-storage system comprised of lithium-ion battery modules is considered to be a core component of new energy vehicles,as it provides the main power source for the transmission ***,manufacturing defects in battery modules lead to variations in performance among the cells used in series or parallel *** variation results in incomplete charge and discharge of batteries and non-uniform temperature distribution,which further lead to reduction of cycle life and battery capacity over *** solve this problem,this work uses experimental and numerical methods to conduct a comprehensive investigation on the clustering of battery cells with similar performance in order to produce a battery module with improved electrochemical *** were first performed by dismantling battery modules for the measurement of performance *** kmeans clustering and support vector clustering(SVC)algorithms were then employed to produce battery modules composed of 12 cells *** verification of the results obtained from the clustering analysis was performed by measuring the temperature rise in the cells over a certain period,while air cooling was *** was found that the SVC-clustered battery module in Category 3 exhibited the best performance,with a maximum observed temperature of 32℃.By contrast,the maximum observed temperatures of the other battery modules were higher,at 40℃for Category 1(manufacturer),36℃for Category 2(manufacturer),and 35℃for Category 4(k-means-clustered battery module).

摘要：“如果梦游仙境的爱丽丝喜欢摇滚，那么她将不舍离开这里。”白昼黑夜，这里都魅力无边。ELEC—TRIC是巴黎第一家综合了艺术、音乐、时尚和运动于一体的文化中心，时尚的品牌元素和参与者的体验被完美地结合在一起，定位高端，致力于创造非凡的试听效果。法国设计师MathieuLehanneur设计的这个餐厅酒吧超过1000m。，在建筑的最顶层，以一个黑色树冠为中心，仿佛悬浮与天地之间。巨大而又光滑的黑色树木直通天花，电线交织成细黑的树枝，而果实则是密布的投影仪，带有强烈符号特质的树成为整个空间的视觉中心。

摘要：Based on the development demand of electric vehicles, this paper studies the communication network in electric vehicles based on CAN bus after analyzing the LCD (liquid crystal display) in electric vehicles and the status quo of research and development trend about communication network. This system uses TMS320LF2407 DSP as the controller of the control system about central signals. It has also developed the LCD system based on CAN bus and the experiment platform which is applied pure electric vehicles.

摘要：In order to meet the requirement of reliably running which is by electric Vehicle for motor controller, the paper is focused on a sensorless brushless DC motor controller design and a commutation point method. By utilizing the saturation effect of stator iron core, six short voltage pulses are employed to estimate the initial rotor position. After that a series of voltage pulses are used to accelerate the motor. When the motor reaches a certain speed at which the back-electromotive force (EMF) method can be applied, the running state of the motor is smoothly switched at the moment determined by the relationship between the terminal voltage waveform and the commutation phases. “Lagging 90?-α commutation” is bring forward to overcome the shortages existing in the traditional method. The experimental results verify the feasibility and validity of the proposed method.

摘要：The current consumption method of electric Power Industry is “electricity consumption first, paying for it later”. The trend of consumption method is Pre-order electricity. If we adopt the Pre-order electricity System, we need to replace Traditional Energy Meter with Prepayment Energy Meter. But this alteration is costly. And the alarm action of Prepayment Energy Meter are bells and alarm lamp, users can not receive alarm information timely. In this paper, we present the design of Multi-user electric Power Management Device. The device uses TMS320F2812 as CPU, with peripheral devices such as mobile phone communication module MC55, so the device supports remote operation and sends alarm information via SMS, it also can communicate with the master station by GPRS. The device can be seamlessly integrated into the existing power system in order to read meter, achieve billing and Pre-order electricity functions. In addition, the device has the Harmonic Measurement function, so it is a high cost-effective application.

摘要：虽然Sophia electric（索菲亚）在国内还没有极高的知名度，但其凭借优秀的电子管，输出变压器的制作及电子管功放设计，已经在美国市场上与世界各国名牌的竞争中取得了一席之地．可见其出色的声音表现。笔者曾经也评测过索菲亚300B电子管单端合并放大器，留下了比较好的印象．他拥有着极高的透明度和细致感，外加上一点点湿润的光泽，可以说在播放备类音乐时都能发挥出它的特色所在，加之优秀的工业设计，绝对称得上是工业艺术品的典范之作。

摘要：The present paper has disseminated the design approach, project implementation, and economics of a nano-grid system. The deployment of the system is envisioned to acculturate the renewable technology into Indian society by field-on-laboratory demonstration (FOLD) and ''bridge the gaps between research, develop-ment, and *** system consists of a solar photovoltaic (PV)(2.4 kWp), a wind turbine (3.2 kWp), and a battery bank (400 Ah). Initially, a prefeasibility study is conducted using the well-established HOMER (hybrid optimization model for electric renewable) software developed by the National Renewable Energy Laboratory (NREL), USA. The feasibility study indicates that the optimal capacity for the nano-grid system consists of a 2.16 kWp solar PV, a 3 kWp wind turbine, a 1.44 kW inverter, and a 24 kWh battery bank. The total net present cost (TNPC) and cost of energy (COE) of the system are US$20789.85 and US$0.673/kWh,respectively. However, the hybrid system consisting of a 2.4 kWp of solar PV,a 3.2 kWp of wind turbine, a 3 kVA of inverter, and a 400 Ah of battery bank has been installed due to unavailability of system components of desired values and to enhance the reliability of the *** TNPC and COE of the system installed are found to be US$20073.63 and US$0,635/kWh, respectively and both costs are largely influenced by battery cost. Besides, this paper has illustrated the installation details of each component as well as of the system. Moreover, it has discussed the detailed cost breakup of the system. Furthermore, the performance of the system has been investigated and validated with the simulation results. It is observed that the power generated from the PV system is quite significant and is almost uniform over the year. Contrary to this, a trivial wind velocity prevails over the year apart from the month of April,May,and June,so does the power yield. This research demonstration provides a pathway for future planning of scaled-up hybrid

摘要：EPLAN处于计算机辅助工程设计系统领域的市场领先地位,成为世界工业界电气设计的标准,各行业越来越多地使用EPLAN作为企业的基本电气设计和标准化基础。EPLAN electric P8在物流行业也得到了大量应用,使我国的物流电气设计水平和图纸控制质量上了一个新台阶。

摘要：The advancement in the micro-/nanofabrication techniques has greatly facilitated the development of micromotors.A variety of micromotors have been invented with powerful functions,which have attracted a broad range of interests from chemistry, physics,mechanics,biology and *** this paper,we reviewed recent progress in micromotors and highlighted representative *** mechanisms of micromotors by internal and external energy sources were *** described general fabrication strategies of the popular micromotors (wire,tubular,helical and Janus)including bottom-up and top-down *** the application section,we primarily focused on the biological applications,such as biological cargo delivery, biosensing and *** last,we discussed the current challenges and provided future prospects.

摘要：文章介绍一套物料分类装置电气部分的设计过程,使用EPLAN electric P8来辅助设计、绘制电气电路图。通过与Auto CAD的对比,说明了EPLAN electric P8在电气绘图方面的优势,重点介绍了如何应用EPLAN electric P8进行物料分类装置电气部分的设计。