IT-driven identity work: Creating a group identity in a digital environment

While organizational scholars are increasingly interested in issues of identity, identity work, and identification, in-depth empirical studies analyzing the process of identity creation have lagged behind, particularly when such process is triggered by the digitization of a work environment. In this longitudinal case study, we take a social constructionist perspective to investigate the identity creation process of a group of librarians in charge of a new information commons library. We call attention to the dialectic forces underlying this process, emphasizing how the librarians' image, as reflected by the patrons, led the librarians to try multiple provisional identities, which were supported by liminal actions reminiscent of either “who they were” and/or “who they could be.” We also consider how technology was appropriated throughout this dynamic and suggest a technology identification process model that parallels the group identity creation process.     

基于氧化工艺的二氧化硅层厚度的研究

氧化工艺是集成电路工艺流程中一项重要工艺。本文对热氧化生成的二氧化硅层厚度进行了理论计算和实际测定,并列出了6个样品的干氧和湿氧时间、理论计算值、实际测值及产生的误差值,实验结果表明利用本文中的工艺参数能达到较好的工艺效果。     

电炉法黄磷生产火灾危险性分析

通过对电炉法生产黄磷的工艺流程的分析,分析出电炉法黄磷生产的火灾危险性,为黄磷生产企业防止生产事故的发生,消防监督和灭火救援人员开展消防监督和灭火救援工作提供借鉴。     

如何成为魅力演讲者

“我相信．我若是无话可说,就是经验再多,年龄再老,也不能免于难为情。”——林肯     

A new approach to the evaluation of process innovations

A technological change should be evaluated as early as possible in its development in order to minimize the chance of investing in an innovation that does not subsequently prove to be economically feasible. In this paper a method is presented for conducting an evaluation while the innovation is still in a conceptual stage of development. To do this, the production process is analyzed in detail and each individual element of the process that might be altered by the innovation is noted. All other elements of the process are ignored. Baseline data on the current performance of the process are collected. Performance of the innovation is estimated as a multiple or fraction of the baseline data for the altered elements. A value-weighted productivity index is used to compare the innovation with the current process.Sensitivity analysis can be performed on the productivity index to find those components of the current production process that are most responsive to change. Used in this way, this method of analysis can become a “driver” for R & D by exposing the parts of the current process that have the greatest potential for contribution to improvement of the productivity index.This method is illustrated in some detail for the case of one conceptual process improvement, laser-assisted machining — for cutting hard-to-machine metals.     

基于SPC的软件定量过程管理

现代质量管理关注过程,强调过程能力,只有稳定的过程,才能持续的提供高质量的产品和服务。本文阐述了高成熟度软件组织所关注的定量过程管理和统计过程控制技术SPC,通过运用统计过程控制技术SPC度量和分析软件过程,实现了软件过程的定量管理,为软件过程的改进和实现高成熟的评估奠定了基础。     

Building a valuable event log for process mining: an experimental exploration of a guided process

The digitalisation of business processes has led to the new opportunity of investigating process executions by using process mining. The complex preparation step of building an event log is often perceived as a technical task, although business considerations should be involved. In this paper, we examine via an experimental study whether and how a guiding procedure supports the performance of this task. Our findings provide insights into the parts played by business and technical considerations in this task and suggest that procedural guidance positively impacts the process of building an event log and its outcome.     

A bottom-up simulation on competition of online interpersonal communication platforms

The competition of interpersonal communication platforms is a complex process affected by various factors. This paper aims to simulate and analyze this process from a bottom-up perspective. Individual platform selection serves as the micro-foundation for the study. The evolution of online interpersonal communication networks, and innovations proposed by online interpersonal communication platforms, would also impact this process by affecting individual selection on those platforms. Three scenarios were designed for this study to simulate typical modes of competition. In this regard, the simulation results were compared to practical cases. Taken together, this bottom-up simulation model could reproduce and anticipate the applied competition process associated with such platforms. Based on this model, it was found that, in any case, one online interpersonal communication platform will eventually monopolize the market, either partly or entirely. The late entrant platform, comprising a major innovation, tends to fail when competing with the incumbent monopoly due to “network externalities.” Even when two competing platforms continue to propose innovations, and they will alternately lead the competition due to those innovations, this type of replacement of their competitive positions in the market may only occur a few times and then disappear completely.

     

Minute by minute: Efficiency,normality, and randomness in intra-daily asset prices

In this study we test the efficiency of asset markets at intervals as short as 30 seconds. We also describe the properties of a simple new stochastic process as a potential model of the behaviour of asset prices and test it on intra-daily Deutsche Mark futures prices. According to this process, asset prices are constant between economically relevant events, which occur at the random times generated by a Poisson process. At the moments of these events, prices jump to new values; the size of the jump is drawn from a normal distribution. Tests of this process indicate that it cannot be rejected for most of the days in the sample.     

基于eEPC的出口业务流程模型仿真

和Petri网等其他流程分析方法相比,eEPC方法在流程仿真和流程性能分析方面更具有优势,而后以某公司集装箱出口业务流程为例,采用eEPC方法对业务流程进行建模,并通过仿真运行过程和运行结果对该业务流程性能进行了分析。     

High performance work practice implementation and employee impressions of line manager leadership

Human resource management (HRM) research has documented the importance of high performance work practices (HPWPs) to organizations, and recent efforts have argued for increasing attention to the role of line manager implementation of HPWPs. To date, research in this area has focused largely on the organizational or employee implications of HPWP implementation, ignoring the process through which implementation affects outcomes. In this article, we use theory on impression formation to describe the perceptual process through which line manager implementation of HPWPs facilitates the formation of different employee impressions of manager leadership styles. We argue that this process is contingent upon employee attributions of implementation intent, which are influenced by the interaction of employee affective and attributional tendencies with line manager implementation style (i.e., political skill). Our conceptualization of this process contributes to HRM research by demonstrating the benefits of integrating it with leadership theory, as well as identifying the role of interpersonal perceptual processes in the effects of HPWPs.     

面向高可靠性产品的应用验证类项目流程设计及优化研究

面向高可靠性产品的应用验证项类项目的实施可保证产品可靠性和应用成熟度,但目前针对应用验证类项目流程的设计和优化缺乏系统研究,导致应用验证类项目效率低下。文章以高可靠性产品的应用验证类项目为背景,分析应用验证流程与产品研制流程、产品的应用流程共同构成的项目流程的概念和特点,并据此构建项目流程模型结构;采用单代号网络图作为项目流程的描述方式,并在网络图的基础上结合项目流程的特点,采用关键路径法开发面向用户工期的优化方法。最终形成不影响用户工期的应用验证类项目流程。文章最后给出了优化算例。     

Using On-Line Process Data to Improve Quality: Challenges for Statisticians*

In the process industries measurements on a large number of process variables are routinely collected at regular intervals by on-line computers. This paper makes a case for incorporating these process variables into Statistical Process Control (SPC) schemes. Multivariate statistical methods such as Principal Component Analysis (PCA) and Partial Least Squares (PLS) can be used to project these data down into low dimensional spaces where analysis, monitoring and diagnosis are easily performed. Strong justifications for taking this approach are presented and examples are given. The statistical process control community has been slow in adapting to the data explosion brought about by the computer era. It has continued to stick with traditional control charts on the quality variables and ignored this rich source of additional information on the process. This paper explores some of the reasons for this and argues that the SPC community must adapt rapidly or lose control of the field to scientists and engineers. The paper also tries to induce statisticians into looking more seriously at the many unsolved problems in this area of reduced rank multivariate statistics.     

企业运作过程的稳健性分析和实现

稳健性的概念通常应用于生产设计过程,但它也同样可以应用于企业运营的一些非制造过程,即运作过程。本文首先介绍了运作过程的概念,其次通过分析质量改进的途径来说明构建稳健的运作过程的重要性,最后研究了建立稳健的运作过程的步骤和一般方法,为企业的具体实施提供一定的借鉴作用。     

基于PDM系统的产品研发过程项目管理

在对企业产品研发过程和项目管理进行分析的基础上,提出了基于PDM系统的产品研发过程项目管理解决方案。通过建立PDM系统中产品研发过程项目管理模型,实现了对产品研发过程管理的综合描述,保证了对项目运行过程中的任务进行管理和监控。     

Resource conflict detection and removal strategy for nondeterministic emergency response processes using Petri nets

Correctness of an emergency response process specification is critical to emergency mission success. Therefore, errors in the specification should be detected and corrected at build-time. In this paper, we propose a resource conflict detection approach and removal strategy for emergency response processes constrained by resources and time. In this kind of emergency response process, there are two timing functions representing the minimum and maximum execution time for each activity, respectively, and many activities require resources to be executed. Based on the RT_ERP_Net, the earliest time to start each activity and the ideal execution time of the process can be obtained. To detect and remove the resource conflicts in the process, the conflict detection algorithms and a priority-activity-first resolution strategy are given. In this way, real execution time for each activity is obtained and a conflict-free RT_ERP_Net is constructed by adding virtual activities. By experiments, it is proved that the resolution strategy proposed can shorten the execution time of the whole process to a great degree.     

基于模糊控制器的制药反应控制系统设计

本文针对霜剂制药生产过程中反应釜温度控制非线性的特点,提出了用模糊控制算法组成的反应釜控制器,把制药生产中的霜剂生产过程控制中的反应釜作为控制对象,对模糊控制器的设计进行详细的介绍。通过实际控制结果证明这种控制器的有效性和可用性。     

控制多元质量特性的方法

介绍了工序中同时控制多个相关质量特性均值向量的T2控制图方法。该方法用T2作为统计量,可简捷地画出控制图,监控工序有无失控现象。给出了计算公式及计算实例。     

Liability of smallness in SMEs – Using co-creation as a method for the ‘fuzzy front end’ of HRM practices in the forest industry

This study explores the co-creation part in the early stage of need analysis and the formation of work towards formal HRM practices in the forest industry. While SMEs are shown to be of great importance for the development in society they often suffer from Liability of Smallness (LoS) especially in the area of HRM. In smaller firms, HRM practices are characterized by ad hoc and idiosyncratic solutions and less formality. In this paper, we show how co-creation can be used to develop HR practices in an SME. The overall methodological approach in this study is action-oriented research. The empirical data is collected with a mixed-method approach including documents, interviews, focus groups, observations, pulse meetings and feedback on the process and results. The co-creation process benefits from using co-creation activities to drive the process forward as well as consolidate the results during the process. Dialog, access, risk, transparency, and openness have been valuable in this process.