数字式速度比例同步电脑控制系统

数字式速度比例同步控制系统，是把先进的交流变频调速技术，微电子技术和节能效果显著的永磁同步电机融为一体组成的性能优良的调速控制系统。该系统具有调速精度高调整范围大、稳定性好、抗干扰能力强、调整方便、节电效果显著等一系列优点。本文详细介绍了该系统的工作原理，并通过应用实例和分析对比，阐述该系统的优越性。     

燃气轮机压气机清洗技术

介绍了燃气轮机压气机清洗维护的常用清洗剂、清洗方法及其特点，以及工业燃气轮机所惯用的清洗方法     

Liquid cooling based on thermal silica plate for battery thermal management system

To achieve safe, long lifetime, and high‐performance lithium‐ion batteries, a battery thermal management system (BTMS) is indispensable. This is especially required for enabling fast charging‐discharging and in aggressive operating conditions. In this research, a new type of battery cooling system based on thermal silica plates has been designed for prismatic lithium‐ion batteries. Experimental and simulations are combined to investigate the cooling capability of the BTMS associated to different number of cooling channels, flow rates, and flow directions while at different discharge C‐rates. Results show that the maximum temperature reached within the battery decreases as the amount of thermal silica plates and liquid channels increases. The flow direction had no significant influence on the cooling capability. While the performance obviously improves with the increase in inlet flow rate, after a certain threshold, the gain reduces strongly so that it does not anymore justify the higher energy cost. Discharged at 3 C‐rate, an inlet flow rate of 0.1 m/s was sufficient to efficiently cool down the system; discharged at 5 C‐rate, the optimum inlet flow rate was 0.25 m/s. Simulations could accurately reproduce experimental results, allowing for an efficient design of the liquid‐cooled BTMS.     

宁波博物馆,宁波,浙江,中国

建筑如山场地位于一片由远山围绕的平原上,不久前还是稻田,城市刚刚扩张到这里。原来在这片区域的几十个美丽村落,已经被拆得还剩残缺不全的一个,到处可见残砖碎瓦。按新的规划,相邻建筑之间的距离经常超过100m,城市结构已经无法修补。问题转化为如何设计一个有独立生命的物体,这座建筑于是被作为一座人工山体来设计,这种思考方式在中国有着漫     

品味墨西哥 布拉格Burrito Loco快餐店

正墨西哥是一个多彩的国度,从饰品、挂件,到各类摆设,都将色彩发挥到了极致。Burrito Loco是一家墨西哥风情的连锁快餐店,并有着悠久的历史。餐厅的所有者希望设计师为这一连锁餐厅设计独有的装饰风格,将典型的墨西哥风情融入其中,在未来的连锁店铺内创造统一的风格符号。设计师在设计中充分展现了墨西哥多彩的特征,并且所有连锁店的设计将选用相同的元素和材料,以达到风格上统一,但运用     

Reactive Extrusion Strategies to Fabricate Magnetite–Polyethylene Nanocomposites with Enhanced Mechanical and Magnetic Hyperthermia Properties

Biofouling is a major problem in water filtration units, which leads to premature system failure. Conventional treatment methods involving the use of chemicals or high‐pressure hydraulics exert mechanical strain on filter materials, leading to shortened service lifetimes. In this study, a novel magnetic polymer nanocomposite is fabricated using a blend of high density/ultrahigh molecular weight polyethylene with magnetite nanoparticle (MNP) fillers. The resulting magnetite–polyethylene nanocomposite (MPE‐NC) is mechanically robust and can be externally actuated with an alternating magnetic field to generate localized heating that is effective in eradicating bacterial biofilms. The MNPs are functionalized with silane‐based coupling agents and crosslinked onto the polyethylene backbone via a reactive extrusion approach, which results in a twofold enhancement in mechanical properties of the polymer matrix. Furthermore, the magnetic hyperthermia performance of the MPE‐NC is improved eightfold by replacing undoped magnetite nanospheres with zinc‐doped magnetite nanocube fillers, and the magnetic hyperthermia treatment approach is shown to be 12 times more effective in destroying bacterial biofilms compared to a direct heat‐treatment method. During hyperthermia treatment, the mechanical integrity of the MPE‐NC is preserved, thereby validating the potential of the MPE‐NC as a new filter material with high efficiency in biofilm removal and extended durability.

     

Murska Sobota新剧院

建筑的前身是一个始建于20世纪50年代的电影院,由现代主义建筑师Franc Novak设计,一直被用作电影放映,年久失修。到21世纪,其陈旧的结构已无法满足一个新的建筑综合体的要求。     

数字城市中遥感数据共享服务的研究

作为一种重要的空间信息资源,遥感数据的共享在数字城市建设中具有重要的意义。本文给出了一个数字城市遥感数据共享的框架,即以服务为核心,包括管理层、数据层、共享服务平台层以及应用层,并讨论了实现共享服务平台的若干关键技术。最后通过一个原型系统的实现,表明本文提出的框架在实际的数字城市建设中具有一定的可行性。