Suchergebnisse

The outbreak of the COVID-19 has had a huge impact on the manufacturing supply chain, especially the supply chain of high-demand products, and is mainly reflected in the double interruption of production capacity and transportation. The research aims to use system dynamics to explore how government subsidies can play a role in supply chain recovery when government subsidies are limited, which provides a new idea for improving supply chain management. In order to explore the impact of government subsidy strategies on supply chain recovery in the context of supply chain disruptions, this paper takes high-demand products during the epidemic as the research object, and takes the government's subsidy choices under the impact of production capacity and transportation disruptions as the entry point for recovery strategies. The cumulative total profit of chain members is used as a judgment indicator, and systems dynamics is used to conduct modeling and simulation to build a secondary supply chain for manufacturers and distribution centers and simulate eight scenarios of different levels of production capacity and transportation interruptions, clarifying the impact of government subsidies on supply the impact of chain recovery. The research results show that, for secondary supply chains, whether in the scenario of partial or complete transportation interruption, government subsidies to manufacturers make supply chain recovery more effective, government subsidies do not have an immediate recovery effect during production capacity and transportation interruptions, and that under the complete interruption of production capacity, the cumulative total value of the supply chain after increasing government subsidies has rebounded in a spiral.

ObjectiveWe examine empirical evidence of region‐based environmental injustice in China, and factors, especially environmental public service, that contribute to the distribution of environmental hazards among various Chinese regions.MethodsWe use variance analysis to assess the disparate distribution of environmental hazards, and then employ the expanded Stochastic Impacts by Regression on Population, Affluence, and Technology (STIRPAT) model to identify the determinants, using a panel data set of 26 provincial capital cities and four municipalities directly under Chinese central government over the period 2003–2010.Results and ConclusionsOur findings confirm the presence of region‐based environmental injustice in China and demonstrate its annual improvement. We also find that environmental public service, economic development level, population size, and environmental protection technology are major impact factors. These findings not only support the environmental Kuznets curve assumption, but also help to advance the existing literature on environmental justice and the human‐environment relationship.

PurposeThe major aim of this study is to explore the mechanism through which conflict management behavior impacts job satisfaction and innovation performance, and to verify this relationship with the empirical analysis in the context of China.Design/methodology/approachA model of the relationship among conflict management behavior, job satisfaction and innovation performance was developed and empirically tested. Based on a survey composed of 333 questionnaires designed for Chinese employees, the authors examine the effects of conflict management behavior on job satisfaction and innovation performance in Chinese contexts.FindingsResults show that integrating and compromising conflict management behaviors are positively related to job satisfaction; integrating conflict management behavior is positively related to innovation performance; and avoiding conflict management behavior is negatively related to innovation performance.Research limitations/implicationsThis study does not take the industry differences into consideration, though how to maintain job satisfaction and promote innovation might differ from one industry to another. This study only studied on the personal level, therefore future studies can be extended to the team level.Originality/valueThis paper offers some useful suggestions for business managers as well as employees to improve employees' job satisfaction and innovation performance.

In this paper, multi-layered composites are fabricated for their application in electromagnetic interference (EMI) shielding. Composites of multi-walled carbon nanotubes/manganese dioxide (MnO(2))/epoxy are used as a microwave absorption layer, and a commercial carbon fiber cloth is used as a reflection layer. When the electromagnetic (EM) waves impinge on such layered composites, the absorption layer can absorb most of the EM waves, and the transmitted EM waves from the absorption layer will be reflected back by the reflection layer and absorbed by the absorption layer. Based on the rational design, the composites with four absorption layers and one reflection layer (with a total thickness of 2.85 mm) show a high EMI shielding effectiveness of 41.24 dB, while the average reflection loss of 13.62 dB can be attained in the X-band (8.2–12.4 GHz). Moreover, the layered composites can absorb nearly 95% of the EM waves at the operating frequency, and provide an absorption dominant EMI shielding which are favorable for commercial and military applications.