Synchronous electric drive of an elevator operating in close control system

A sample synchronous motor with permanent magnets has been tested in the model of a gearless drive and the results are presented. With the help of mathematical simulation, comparative calculations of synchronous motors with different geometrical sizes are carried out for two types of elevators.     

Empowering Communities Through Design

Francesca Galeazzi is an architectural engineer who leads the sustainability team at Arup Associates in Shanghai. Here she looks back with hindsight from 2050, reflecting on how rapid urbanisation in China, which started in the 1990s, played out over the next half-century. She describes how the initial highly centralised, mass urbanisation programmes gave way to a more local and community-based, participatory approach to decision-making and planning, foreshadowed by some key legislation around land ownership and design for community-based planning models in the early 2010s.     

高、低压电软起动控制器的应用

分析当前国内几家生产的高低压软启动控制器在煤矿井下应用中的优点,并论述了高低压软启动控制器的工作原理、结构组成、具备的各项保护功能,以及一些特殊性能,针对该控制器的特性,提出合理建议。     

境界顶柱稳定性的数值模拟研究

露天转地下开采的矿山，其境界顶柱稳定性将直接影响到矿山的安全生产。本文以石人沟铁矿为例，运用ANSYS有限元分析软件，建立三维数值模型，模拟了动载荷作用下分步回采引起顶柱及采场的应力、变形情况，并对结果进行了详细的分析，得出了有价值的结论，有利于指导矿山的安全生产。     

The Deubiquitinase OTUB1 Is a Key Regulator of Energy Metabolism

Dysregulated energy metabolism is a major contributor to a multitude of pathologies, including obesity and diabetes. Understanding the regulation of metabolic homeostasis is of utmost importance for the identification of therapeutic targets for the treatment of metabolically driven diseases. We previously identified the deubiquitinase OTUB1 as substrate for the cellular oxygen sensor factor-inhibiting HIF (FIH) with regulatory effects on cellular energy metabolism, but the physiological relevance of OTUB1 is unclear. Here, we report that the induced global deletion of OTUB1 in adult mice (Otub1 iKO) elevated energy expenditure, reduced age-dependent body weight gain, facilitated blood glucose clearance and lowered basal plasma insulin levels. The respiratory exchange ratio was maintained, indicating an unaltered nutrient oxidation. In addition, Otub1 deletion in cells enhanced AKT activity, leading to a larger cell size, higher ATP levels and reduced AMPK phosphorylation. AKT is an integral part of insulin-mediated signaling and Otub1 iKO mice presented with increased AKT phosphorylation following acute insulin administration combined with insulin hypersensitivity. We conclude that OTUB1 is an important regulator of metabolic homeostasis.     

新安画家程门及其浅绛彩瓷绘的艺术成就

新安画家程门,以他为首创建的浅绛彩瓷绘,开创了瓷绘工艺与高雅的中国画艺术全面结合的先河,并孕育了一大批徽州籍的制瓷名家,将新安画风直接带入瓷画之中,为徽学研究提供了难得的新史料,极大地丰富了博大精深的徽州文化。     

用派克方程分析开关磁阻电动机

根据开关磁阻电动机气隙磁导的变化情况，把ＳＲＭ的一相绕组通电后的电磁关系，等效成一台假想的极对数Ｚ２／２，但运行于某种不对称的工作条件的三相凸极同步电动机的电磁关系，建立了与ＳＲＭ相等效的同步电动机模型，使用派克方程来分析ＳＲＭ的工作机理成为可能，并用坐标变换、Ｚ变换和拉氏变换法来求取ＳＲＭ的定子相绕组电流及电磁转矩。，     

文化旅游与川酒产业软实力提升

川酒产业软实力作为一种人文载体不能仅仅以单一的方式存在,应通过有效地打造和传播成为一种具有参与性的活动,让更多人能够直观感受和体验,文化旅游可以作为一个切入点实现这一目的。文章从文化旅游视角出发,探讨通过打造旅游目的地、设计旅游体验项目、开展旅游营销等途径提升川酒产业软实力。     

工作模式对财务管理信息系统关键指标的影响

提出了“信息系统可靠性的实质是其数据可靠性”的观点，并分析了系统工作模式对财务管理信息系统信息反馈周期、数据可靠性和系统工作效率的影响，得出实时处理系统在这三方面均优于批处理系统的结论．     

PE 井口高压滤芯的研究与开发

本文介绍了一种新型的能在较高压力环境下进行细过滤的ＰＥ井口高压滤芯的结构特征、关键技术研究、技术特性，以及应用效果。