钻机钻进过程人机系统可靠性分析

在全面分析钻井机械的组成、钻进过程的特点和人的特性的基础上，建立钻机钻进过程人机系统可靠性模型。整个系统由人的行为、钻进参数采集、井喷预兆监测、钻进参数调节和井喷控制5个子系统，通过人机接口构成。根据人的感知、判断决策、执行操作行为进程．引入行为形成因子和差错纠正能力，构成人的行为模式，导出人的行为可靠度，进而得出钻机钻进过程人机系统的可靠度。     

虚拟建设的发展、内涵与组织管理流程

建筑企业若想在激烈的竞争中取得有力的地位，就必须提高自己的管理水平和竞争能力，而虚拟建设就是建筑企业提高竞争力的一条有效途径。文章从计算机技术与建筑业的结合入手研究虚拟建设的发展，揭示虚拟建设的内涵，构建了虚拟项目组织的管理流程。     

试论我国金融控股公司信息披露水平的积极提升

金融控股公司作为特殊的金融机构,其信息披露在未来开放的金融市场不仅必要,亦关系到金控公司的经营和竞争能力,我国金控公司应充分认识信息披露的意义,了解妨碍信息披露的因素。通过各方共同努力来提升信息披露水平。     

国内外二苯基甲烷二异氰酸酯生产应用及市场分析

对国内外二苯基甲烷二异氰酸酯市场供需作了综述。认为二苯基甲烷二异氰酸酯作为重要有机原料品种之一．在我国发展前景看好。指出在现行工艺中，传统光气法对环境有污染，因而从人类社会可持续发展出发，应将以非光气法的二苯基甲烷二异氰酸酯合成作为今后技术开发目标。     

异丙苯生产技术和市场分析

综述了国内外异丙苯生产技术发展动向和市场供需情况，对异丙苯的主要工艺技术指标进行了对比，并预测了异丙苯市场发展趋势。高选择性将是异丙苯生产技术趋势之一，随着异丙苯生产能力激增，建议有效抵御市场风险。     

The evolution of the seven steps of selling

The traditional seven steps of selling is perhaps the oldest paradigm in the sales discipline. The seven steps model has served as a basic framework in sales training, personal selling textbooks, and teaching personal selling classes. Very little has changed in this framework since the turn of the 20th century. This article reviews the traditional seven steps of selling, examines transformative factors that have led to changes in each step, and presents an evolved seven steps process. While the traditional seven steps reflected a selling orientation on the part of a firm, the evolved selling process reflects more of a customer orientation in that the focus is on relationship selling—that is, securing, building, and maintaining long-term relationships with profitable customers.     

Expected exponential utility maximization of insurers with a Linear Gaussian stochastic factor model

In this paper, we consider the problem of optimal investment by an insurer. The wealth of the insurer is described by a Cramér–Lundberg process. The insurer invests in a market consisting of a bank account and m risky assets. The mean returns and volatilities of the risky assets depend linearly on economic factors that are formulated as the solutions of linear stochastic differential equations. Moreover, the insurer preferences are exponential. With this setting, a Hamilton–Jacobi–Bellman equation that is derived via a dynamic programming approach has an explicit solution found by solving the matrix Riccati equation. Hence, the optimal strategy can be constructed explicitly. Finally, we present some numerical results related to the value function and the ruin probability using the optimal strategy.     

Optimal pair-trading strategy over long/short/square positions—empirical study

Suzuki [Automatica, 2016, 67, 33–45] solves the optimal, finitely iterative, three-regime switching problem for investing in a mean-reverting asset that follows an Ornstein–Uhlenbeck price process and find explicit solutions. The remarkable feature of this model is that the investor can explicitly take either a long, short or square position and can switch the position, with transaction costs, during the investment period. We run empirical simulations of such multiple-regime switching models. There are very few such attempts in the existing literature because it is difficult to find, first, an explicit solution to the problem and second, appropriate financial assets that follow the artificial stochastic process required by the mathematical model. According to the Monte Carlo simulations of the optimal pair-trading strategy, the mean daily Sharp ratio is more than 2.3, whereas the mean Sharp ratio for the historical simulation of the ‘stub’ pairs (combinations of parent/subsidiary companies) is 0.6886. We believe that the results obtained from performing the empirical simulations are remarkable and consider that the optimal switching strategy of the rigorous mathematical model is applicable to businesses in the real world. For the reference many pseudo-program codes are added, which can help to replicate the optimal trading strategies.     

Exploring business process modelling paradigms and design-time to run-time transitions

The business process management literature describes a multitude of approaches (e.g. imperative, declarative or event-driven) that each result in a different mix of process flexibility, compliance, effectiveness and efficiency. Although the use of a single approach over the process lifecycle is often assumed, transitions between approaches at different phases in the process lifecycle may also be considered. This article explores several business process strategies by analysing the approaches at different phases in the process lifecycle as well as the various transitions.     

钢铁生产物流工艺过程监测与控制系统设计与实现

文章运用生产物流管理的思想和方法,阐释钢铁生产物流工艺过程的特点、监控的问题和原因,提出建立物流仿真系统和物流自动化技术设计方案,有效实现钢铁生产物流工艺过程的监测与控制手段,对现代钢铁生产物流工艺过程的科学管理具有重要的指导价值。