在负荷变化大的工况下轧机的智能控制

针对中国轧机控制技术较低的实际情况,提出了在闭环调速基础上应用模糊PID和模糊神经网络到轧机初轧控制系统中的方案,详细介绍了该控制系统优化算法的实现过程。此方案实现了对调节时间和超调量的双重优化,提高了轧机的抗扰性、启动时的平稳性,并减少了因超调引起的附加机械损耗,使轧制生产线自动化控制水平显著提高。     

城市棚户区改造土地增值收益分配机理研究——基于吉林省松原市的改造案例

研究目的:基于城市棚户区改造土地增值的形成机理,试图构建土地增值收益分配的理论分析框架,探讨土地增值收益形成与分配的实现过程,为构建合理的土地增值收益分配机制提供依据。研究方法:规范分析法和案例分析法。研究结果:(1)根据不同的土地增值形成机理,土地增值收益需要实行差别化的分配机制;(2)现实中土地增值收益分配存在忽略了部分主体的贡献和应该"返还社会"的土地增值实际上被少数人垄断的问题;(3)现实中土地增值收益分配的主要争议是初次分配"涨价归公"的土地增值如何实现"返还社会",和再次分配新产生的土地增值如何实现"返还社会"。研究结论:需要构建一个多方博弈平台,引入合理的谈判机制,通过协商谈判和讨价还价达成各方相对满意的土地增值收益分配方案。     

CMAC与非线性PID复合控制器在机器人中的应用

针对工业机器人是一个复杂的非线性■强耦合■多变量的动态系统,提出了CMAC与非线性PID复合控制器设计。该控制器由非线性PID反馈和CMAC前馈2部分构成,可消除初始输出力矩过大的弊端。采用非线性PID控制器替代经典PID控制器,因非线性积分环节可以随误差的变化进行调整,从而可以提高其自适应性和鲁棒性。CMAC学习速度快,网络收敛所需的训练次数少,可有效地用于机器人实时在线控制。仿真结果表明该设计方法具有有效性和可行性。     

Business Strategy and Firm Reorganization: Role of Changing Environmental Standards,Sustainable Business Initiatives and Global Market Conditions

My study is framed against the backdrop of increasingly stringent environmental demands on the pulp and paper industry to reduce water and air pollution, and the changing global market conditions. I first present an observation‐based analysis conducted by visiting selected paper mills in Finland, the US, Germany and Sweden. Interesting differences and similarities emerge. Some of the observed differences lie in their focus on achieving incremental efficiency gains from better management of production processes, inventories, supply‐chain, product distribution and timing of modernization investments such as information technology. In the second part of the paper I present evidence on firms' productivity paths and the heterogeneity in productivity among relatively similar firms, and selected evidence of firms' investments in specific areas and how these affected productivity. My findings have implications for organizational behavior and business strategies employed by firms to improve their performance and productivity under changing environmental standards and market conditions. Copyright © 2013 John Wiley & Sons, Ltd and ERP Environment     

基于单编码器反馈的多电机控制伺服驱动器的研究

随着产业升级的不断推进,机械数控化、自动化是企业提高生产效率、提升企业效益、获得持续竞争优势的重要途径之一。伺服作为驱动部件,在数控自动化领域应用广泛,作用突出。本文是基于单编码器反馈的多电机控制伺服驱动器的研究。该伺服控制系统具备多个伺服电机驱动接口,可以控制多台电机的同步运行或者各自独立运行;并且通过参数配置可选择其中一种,控制灵活,适用性好。通过位置反馈接口电路可兼容多种形式的位置反馈,克服了现有伺服控制系统中驱动器只能支持一种形式的编码器的缺点,使用方便,成本更低,便于推广。     

Cluster and firm-specific antecedents of organizational innovation

Based on the idea of the tourist destination as a cluster, this paper proposes a model to explain the relationships between exploration and exploitation capabilities – whether originating in the cluster or firm-specific – and a firm’s organizational innovation. This study turns to the resource-based view to provide a theory-based concept of shared capabilities accumulated in a tourist destination or cluster, together with valid measurement instruments to capture them. Our conceptual model highlights the theoretical and practical benefits for firms of being embedded in a cluster to develop both exploration and exploitation capabilities. The study also analyses the interaction between cluster-shared capabilities and firm-specific capabilities in exploration and exploitation to obtain two types of firm organizational innovation: radical and incremental. Some implications for managers and policy-makers are presented, highlighting the importance of tight integration in managing firm and cluster resources and capabilities.     

Bifurcation of attritional and large losses in an additive IBNR environment

In certain segments, IBNR calculations on paid triangles are more stable than on incurred triangles. However, calculations on payments often do not adequately take large losses into account. An IBNR method which separates large and attritional losses and thus allows to use payments for the attritional and incurred amounts for the large losses has been introduced by Riegel (see Riegel, U. (2014). A bifurcation approach for attritional and large losses in chain ladder calculations. Astin Bulletin 44, 127–172). The method corresponds to a stochastic model that is based on Mack’s chain ladder model. In this paper, we analyse a quasi-additive version of this model, i.e. a version which is in essence based on the assumptions of the additive (or incremental loss ratio) method. We describe the corresponding IBNR method and derive formulas for the mean squared error of prediction.     

The Value-Relevance of Financial and Nonfinancial Information—Evidence from Taiwan’s Information Electronics Industry

This study integrates general measurements of the information electronics industry based on the concepts of the balanced scorecard, intellectual capital, and intangible assets. The reasons for the difference between the corporate market value and book value are also analyzed, and the impacts of both financial and nonfinancial perspectives on the corporate value are explored. The component items of net income are found to be more effective in explaining the value of a company than merely looking at the bottom line. It is concluded that RI and EVA have significant and similar explanatory power in terms of evaluating the performance of the information electronics industry. Moreover, a review of the nonfinancial performance of information electronics companies on the basis of segmented samples reveals significant results in terms of explaining the value of the upstream, midstream, and downstream companies.     

农村合作金融存量改革与增量发展的制度经济学分析

2006年底农村资金互助社合法化文件的出台和2007年8月农村信用社第一阶段深化改革试点工作的基本完成，标志着农村合作金融改革正处于历史性突破的前夜。为更好推进农村合作金融发展，本文在对农村合作金融存量与增量发展中存在的主要矛盾进行制度分析的基础上，发现农村合作金融发展陷入“存量改革难”与“增量发展受阻”的双重困境，其深层原因是政府在农村合作金融改革发展中存在严重的路径依赖。     

Effectiveness comparison and incremental cost-per-responder analysis of calcipotriene 0.005%/betamethasone dipropionate 0.064% foam vs. halobetasol 0.01%/tazarotene 0.045% lotion for plaque psoriasis: a matching-adjusted indirect comparative analysis

Abstract

Background: The fixed-dose combination foam formulation of calcipotriene 0.005% plus betamethasone dipropionate 0.064% (Cal/BD) has demonstrated efficacy and a favorable safety profile for the treatment of plaque psoriasis. Recently, a topical lotion of the combination of halobetasol 0.01% plus tazarotene 0.045% (HP/TAZ) was approved for treating adult plaque psoriasis. Currently, no head-to-head studies have compared Cal/BD foam with HP/TAZ lotion.

Objective: Compare the effectiveness and drug incremental cost per responder (ICPR) of Cal/BD foam vs. HP/TAZ lotion in moderate-to-severe plaque psoriasis.

Methods: An anchor-based, matching-adjusted indirect comparison was conducted for PGA treatment success (Physician’s Global Assessment of “clear” or “almost clear,” [PGA 0/1] with at least a 2-point improvement) using individual patient data from 3 randomized clinical studies of Cal/BD foam and published data from 2 randomized, Phase 3 clinical studies of HP/TAZ lotion. The number needed to treat and ICPR were also calculated.

Results: After reweighting of patients in the Cal/BD foam studies to match summary baseline characteristics of the HP/TAZ lotion study patients and anchoring to vehicle effect, 4?weeks of Cal/BD foam produced a significantly greater rate of treatment success than 8?weeks of HP/TAZ lotion treatment (51.4 vs. 30.7%; treatment difference = 20.7%, p?<?.001). The number needed to treat with Cal/BD foam was also less than HP/TAZ lotion (1.9 vs. 3.3). Using US wholesale acquisition costs and equal weekly consumption rates, the incremental cost per PGA 0/1 responder relative to vehicle for Cal/BD foam was $3,988 and was 37% lower compared with HP/TAZ lotion ($6,294).

Conclusions: The indirect comparison analyses showed that Cal/BD foam was associated with a greater rate of treatment success, lower ICPR, and quicker treatment response than HP/TAZ lotion in adult patients with moderate-to-severe plaque psoriasis.