乙丙橡胶生产工艺的比较分析

本文介绍了乙丙橡胶溶液聚合、悬浮聚合和气相聚合生产工艺的技术状况及特点,并进行了比较分析.     

独立挂点双联悬垂绝缘子串在连续上下山时的受力分析及串长调整

输电线路设计过程中,经常会采用独立挂点双联悬垂串的方式,而当独立挂点的双联串出现在连续上下山的杆塔时,往往会出现两悬垂串受力不均,甚至出现一串受力而一串松弛的情况。文章通过采用悬链线公式计算方法对两串受力进行分析,计算出串长的理论调整值,最后结合实际调整值来验算两串的实际受力情况,保证两串均满足规定要求。     

商用房出租人应对违约承租人的几点认识

在办公楼宇租赁的实际工作中,时常会遇到既不付租金而又赖着不走的违约承租人,对这样的违约承租人采取断电断水措施是一种较为有效的手段,本文从法律依据、采取措施应具备的要件、合同约定、具体实施步骤和注意事项等几个方面,对实施该措施提出了自己的观点和建议。     

基于电磁直线作动器的主动悬架控制方法研究

为了实现电磁直线作动器主动悬架中电磁阻力的有效跟踪输出,进一步提高悬架的性能,利用1/4主动悬架系统的动力学模型和作动器驱动电路模型,设计了LQG控制器和Fuzzy-PID控制器相结合的主动悬架分层控制系统。给出了电磁直线作动器主动悬架控制系统的设计方案,利用MATLAB/Simulink搭建模型进行仿真,并通过具体的台架试验验证。结果表明,主动悬架的减振性能得到了明显改善,其车身加速度和悬架动行程得到了大幅降低。研究结果对电磁悬架的主动控制方法研究具有一定的参考价值。     

吊销公司营业执照与清算义务人之侵权责任——对有关公司法实务经验的检讨

公司被吊销营业执照，往往被当事人利用为恶意逃废债务的工具。为了解决这个问题，要首先明确公司营业执照只是公司经营资格的证明，而不是公司法人资格的证明。吊销营业执照不导致公司终止，只是引起公司清算。公司清算义务人对公司清算程序的启动负有义务，当其不履行清算义务时，债权人除可以要求进行强制清算外，还可以请求清算义务人承担侵权责任。清算义务人的侵权责任具有实现特定司法政策的功能，处于辅助性的地位。     

Empirical Evidence on the Role of Trading Suspensions in Disseminating New Information to the Capital Market

Abstract:  This paper examines the effect of temporarily suspending the trading of exchange-listed individual stocks. We evaluate whether regulatory authorities can successfully use the mechanism of trading suspension in forcing companies to disclose new and material information to the capital market. Previous studies on trading suspensions mainly concentrate on North-American stock markets and find conflicting results. This study utilizes a new data set comprising of firms listed on Euronext Brussels – an important segment of Europe's leading cross-border exchange. Our results show that suspension is indeed an effective means of disseminating new information. Stock prices adjust completely and instantaneously to the new information released during trading suspensions. We also observe a significant increase in trading volume with the reinstatement of trading. On the other hand, we do not find support for the claim that trading suspensions increase the volatility of stock prices. Overall, our results show the efficacy of trading suspensions in disseminating new information.     

Multiple State Property Options

Before taking strategic actions in property investments, consider the type and number of expansion, contraction and suspension alternatives and the future profit volatility. The optimal investment strategy for a current or prospective property owner should reflect the expected variability of future profits (rent times occupancy times units available), and current profits relative to threshold trigger profits for a variety of alternative states and actions. These alternatives include remaining idle, building and operating properties, expanding, contracting, suspending, reverting to normal service or reduced service capacity, or abandoning. A valuation model is developed for up to eight different options, each with a distinct trigger. Then numerical solutions show optimal profit triggers and valuations for each of these real options. Generally, increasing the number of options reduces the investment and abandonment triggers, and increases the values of the investment option and total option values, given these alternatives and parameters. The relevant parameters will depend on the investment context and feasible actions, but generally include interest rates, profit volatility, and irrecoverable costs of investment, expansion, contracting, suspension and abandonment. Generally increases in investment costs reduce the value of upward options, and increases the optimal triggers for exercising those options. Increases in expected profit volatility increase the value of all options, increases investment triggers and decreases abandonment triggers. These generic models may be appropriate for many contexts where the costs of changing states are partially irrecoverable, yet where management has some flexibility to alter scale, quality and pricing of assets and services.     

汽机装置开工调试阶段设备故障分析及处理措施

四川石化公用工程部自备电站汽机装置在开工调试阶段出现汽轮发电机组轴承损坏、高压给水泵抱轴、减温减压器出口短节开裂等事故,对事故原因进行分析和故障处理,达到装置安全平稳运行的目的。     

Show me the money-cut: Shareholder dividend suspensions and voluntary CEO pay cuts during the COVID pandemic

Many US companies with December 31, 2019 as their fiscal year end had their Annual Shareholder Meeting scheduled (usually online) during the COVID pandemic. Unexpectedly faced with significant changes in operating environments, some companies decided to suspend shareholder dividend payments. In normal circumstances, this would be interpreted as a very negative event and shareholders could be expected to respond adversely at the annual meeting. However, we investigate whether CEOs were able to maintain shareholder support by offering a previously unheard of response of “sharing the pain”, committing to cut their own pay following a dividend suspension. At issue is whether investors acted as if they updated their inferences using the new voluntary pay-cut decision to infer the extent to which the CEOs underlying personality type was well matched to crisis management. We estimate an instrumental variables model in which the dividend suspension is used as an instrument for the endogenous pay cut variable.     

拉索在高层悬挂结构中的应用

随着城市用地价格的越来越高,城市道路越来越拥挤,人们向往能够节省土地,高效利用空间的建筑,高层悬挂结构满足了人类的这些要求。拉索是最早应用在悬挂结构上的构件,但现有的高层悬挂结构主要由井筒、刚性大梁、吊杆以及各层楼板组成。各层楼板内端支承在井筒上,外端由吊杆悬挂在由井筒伸出的吊架上,并没有拉索,如果将拉索应用在高层悬挂结构上,则可减少刚性大梁的负担,更加充分的发挥钢材的作用,钢材利用率增高,有利于节省材料成本。