Operational excellence in a green supply chain for environmental management: A case study

Nowadays, organizations have started to become more conscious about the environment in their supply chain operations. The greening process has guided supply chain practices into new ways of thinking according to green standards. The assessment of the performance of green supply chain management (GSCM) requires a holistic view for the whole supply chain. In this context, given that becoming green in the operational side of activities is essential, the performance assessment of operational activities also requires a holistic view to be taken. In this paper, an attempt has been made to improve the performance of GSCM by examining and evaluating the green operational excellence of a hot dip galvanizing company. The framework includes several green operational excellence key criteria, namely, quality management, efficiency management, green production/manufacturing, eco‐packaging, and green design. First, the weights of the criteria and the respective measurements were found by fuzzy analytic network process. Then, the overall operational performance score was found by a weighted scoring method. Finally, both managerial and theoretical implications were suggested according to the outcomes and findings of the case study.     

Moving beyond the tensions in open environmental innovation towards a holistic perspective

This paper analyses factors determining open environmental innovation (EI) and explores the possibility of embracing their tensions to achieve integrated environmental strategic goals. Building on recent literature linking open innovation and EI, the study assumes open EI strategic goals as a multidimensional construct based on the “synergistic and interwoven nature” of four identified enabling factors, that is, partners, knowledge, benefits, and motivations. A fuzzy‐set qualitative comparative analysis (fsQCA) based on Boolean algebra is conducted to analyse a set of 186 European companies operating in the telecommunication and information and communication technology (ICT) service industries. Making important theoretical, managerial, and policy contributions, this paper offers insights into the key factors enabling open EI and the tensional relationships within and between them. In doing so, it captures the non‐linear effects among these factors and the strategic goals related to an open EI strategy. It also suggests how the paradox theory might help in addressing the tensional dilemma of open EI strategy.     

Market drivers of sustainability and sustainability learning capabilities: The moderating role of sustainability control systems

This study examines (i) the impact of market drivers of sustainability on the adoption of sustainability learning capabilities and (ii) the moderating role of sustainability control systems (SCS) on the relationship between market drivers of sustainability and sustainability learning capabilities. Drawing on the levers of control framework, stakeholder theory and organisational learning literature, survey data were collected from 175 large scale local and multinational companies operating in Sri Lanka. Findings reveal that market drivers of sustainability have a significant positive impact on sustainability learning capabilities. Whereas the interactive use of SCS shows a positive moderating impact, the diagnostic use of SCS shows a negative impact. The study enhances our understanding of (i) the influence of market drivers of sustainability on the adoption of sustainability learning capabilities and (ii) the use of SCS in enabling sustainability learning capabilities. The study reveals novel insights for managers responding to changing market drivers of sustainability, on how to (re)align different uses of SCS to enable sustainability learning capabilities.     

基于粒子群算法下的交叉口信号配时优化

为了合理地优化交叉口信号配时,通过分析交叉口的评价指标,建立了以车辆的平均延误、停车次数最小、交叉口整体通行能力最大、各相位有效绿灯时间和交叉口周期时长作为约束条件的数学模型。并通过改进前人研究基础上的动态加权系数,将多目标的非线性优化问题转化为单一目标的非线性规划问题,为了得出更科学稳定的解,提出了改善粒子群算法系统稳定性的2种方法,并将其与粒子群算法结合起来。然后以Matlab为求解工具,结合临邑市某一交叉口实例进行求解分析。最后的结果表明,在使用改进后的粒子群算法进行优化后交叉口通行能力较之现状提升了9%,延误下降了28%,停车次数下降了9%,且各项优化结果均优于Webster,改进后的算法在程序中运行300代,到216代才开始收敛,而未改进的算法稳定性较差,优化结果和收敛曲线则随着实验次数的变化而变化,最后的结论证明了该算法和模型的可靠性。     

告成煤矿水文地质特征分析及防治水措施

分析了告成煤矿的矿井充水水源等水文地质特征,针对性地提出了矿井防治水措施。针对顶板水治理的主要措施以疏排为主,对底板水的治理主要是进行注浆加固,将底板由含水层、导水层改造为相对隔水层。     

Accounting change and value creation in public services—Do relational archetypes make a difference in improving public service performance?

Evidence points out that the outcome of accounting change in local governments is not simply a matter of ‘corporate’ resource investments and change management activities to accounting system replacement. This paper examines the link between such corporate-level interventions and the patterns of value creation at street-level. It emphasizes a resource- and capability-driven approach to explore processes and consequences of an ‘embedded agency’-effect assigned to the street-level rationale of public service improvement. Considering a logic chain of cause-and-effect sequences, the data analysis provides evidence that corporate and street-level interventions are unique dimensions to signify the multiple patterns of accounting change in local governments. The supplementary effect of cross-functional relationships is also distinguished, considering the relational archetype as a mechanism to explain the emerging outcome state. Recognizing the distinction and the sequential effects of relational archetypes induces a refined typology of accounting change according to its processes and outcomes in local governments. The analysis is based on a comparative case study design to explore accrual accounting introduction in six German municipalities.     

The effect of external audits of internal control over financial reporting on financial reporting for clients of Big 4, Second-tier,and small audit firms

The external audit of internal control over financial reporting (ICFR) is a very expensive and contentious aspect of the Sarbanes–Oxley Act (SOX). Larger public firms were first required to file a management report on and have an external audit of ICFR in 2004. Smaller public firms were first required to file a management report on ICFR in 2007 but are exempt from the audit requirement. Whereas most related prior research investigates the combined effect of management and auditor reports on financial reporting, this study examines the distinct effect of auditor reports on reporting quality. For companies audited by small auditors, we find evidence that financial reporting quality improves with an auditor report on ICFR. We find no evidence that auditor ICFR reports improve reporting quality for clients of Big 4 or Second-tier audit firms. Our study adds to the debate on the applicability of SOX Section 404 to smaller firms.     

Do management reports on internal control over financial reporting improve financial reporting?

Sections 404a and 404b of the Sarbanes–Oxley Act require management and external auditors, respectively, to report on the adequacy of a company’s internal control over financial reporting (ICFR). Larger public firms were first required to file a management report and have an external audit of ICFR in 2004. Smaller public firms were first required to file a management report on ICFR in 2007 but are exempt from the attestation requirement. We investigate the distinct effect of management reports on financial reporting quality. We find that management reports on ICFR improve reporting quality and demonstrate that there are financial reporting benefits from the management report requirement on its own without attestation.     

物流中断风险分析与对策研究

物流企业运营过程中会遇到很多种风险,某些风险会导致物流中断。这些风险不仅包括一些导致物流中断、财产损失和人身伤亡的纯粹风险,还有经营风险、财务风险、投资风险、客户流失风险、人力资源管理风险等。由于风险管理主要关注的是纯粹风险。文章用风险管理的思想来研究物流中断的风险,包括物流中断的风险识别、分析、评价和风险的控制措施和持续改进的建议。     

融合通信系统下WiFi门禁系统的实现

传统的由计算机控制的门禁系统需要构建专用的控制网络，并且不能进行局域网之外的无线远程控制；而以IP通信为基础的融合通信，把计算机网络与传统通信网络融合为一体，将数据、音视频融合在一个网络平台上；本文实现的门禁系统，利用IP网络，将门禁和IP融合通信达成一个有机的整体，是一种能实现无线WIFI控制的门禁系统。