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排序方式: 共有1049条查询结果,搜索用时 15 毫秒
1.
机电设备是矿山生产当中的重要工具,其能够帮助工作人员开展生产作业,提高工作效率,有效解放劳动力,使矿山企业拥有高效、快速、简便的生产方式。在矿山生产当中,利用机电设备进行作业,能够减少因工作人员的疏忽而造成的失误,提高矿山生产的安全性。所以在矿山生产当中,机电设备十分重要。论文首先分析矿山机电设备管理的意义,然后分析矿山机电设备管理中存在的问题,最后从三个方面分析矿山机电设备管理的措施。  相似文献   
2.
Consumers often imagine what it would be like to own a new product. Does engaging in such thoughts on desired future impact consumers’ purchase intentions, and if so, what is the underlying process? This study sets out to investigate the posed questions by assessing self‐regulatory strategies consumers employ upon pondering on a desired future. Based on Oettingen’s fantasy realization model, the authors take a comparative approach of two modes on desired future—mental contrasting and indulging—en route to purchase intentions. In mental contrasting, an individual juxtaposes a desired future with his/her present reality, whereas, indulging is simply envisioning a desired future. Contingent upon the perceived likelihood of fantasy realization, consumers in the mental‐contrasting condition adjust their level—that is, high (low) for high (low) feasibility case—in goal commitment as well as in energization to achieve the desired future. In contrast, consumers in the indulging condition engage in moderate level of goal commitment—irrespective of the likelihood of fantasy realization. In a series of experiments, this study scrutinizes the fantasy realization model in context of attribute alignability/nonalignability, uncertainty in attribute meaningfulness and novelty, technological and psychological obsolescence en route to affecting the consumers’ product purchase/upgrade intentions. Conceptually, this study is the first to adapt the fantasy realization model to the marketing context, and the authors provide managerial implications of their key findings.  相似文献   
3.
食品安全规制涉及政府、生产者和消费者三方利益主体的博弈。已有文献主要关注政府规制对减少生产者违规概率、提升食品安全水平和消费者福利所产生的作用。本文从生产者福利视角考察企业参与食品安全规制是否存在“收益率溢价”效应,以此对中国食品安全规制的间接效果进行实证检验。首先采用倾向得分匹配模型考察食品安全规制对企业资产收益率的平均影响效应,然后采用广义倾向得分匹配模型和门槛模型进一步考察不同规制强度与企业资产收益率的非线性关系。研究表明,当前食品安全规制对参与规制企业产生了“收益率溢价”的间接效果,但随着规制强度的扩展,企业资产收益率呈现先上升后下降的“倒U型”变化,具有显著的双重门槛特征,当企业持有4项质量认证证书时为“最优规制强度”。最后结合当前中国实际,解释了上述结论产生的原因及政策含义。  相似文献   
4.
Considering the significant effects of electronic Word-of-Mouth (eWOM), this research explores how individuals respond to eWOM and whether gender differences exist in their perceptions. To do so, by employing the perspective of social interactions, we examine the proposed relationships are different between genders. We collected data using a survey and tested the hypotheses via path analysis. The results indicate that, gender differences were found specific to search effort, product involvement, and information credibility. Women with strong online ties had a tendency to be more involved in the product information and to find the information more credible. In addition, when women had an increased search effort, they were more likely to have intention spread eWOM. This research provides insights to further research related to gender differences in eWOM by discussing implications for research and practice.  相似文献   
5.
为了探索工程实际中水泥固化土的应力-应变关系及水泥土变形规律,参考岩石统计损伤本构模型的思路来构建水泥土统计损伤本构模型。假设水泥土微元强度服从Weibull概率密度分布,并引入初始损伤系数η,建立单轴压缩荷载下水泥土的统计损伤本构模型。根据应力-应变曲线峰值点的极值性进行模型参数求解,分析不同水泥掺量、不同龄期的水泥土累积损伤的扩展过程。通过对水泥土单轴压缩试验数据进行验证与分析发现,随着水泥掺量以及龄期的增加,水泥固化土模型参数η值增大,m值,F_0值减小,表明龄期和水泥掺量能够抑制水泥固化土损伤发展。新建立的水泥土统计损伤本构模型拟合效果较好,并能较好地反映水泥土的应变软化特性,可为水泥固化土的应力分布特点和变形规律研究提供一定参考。  相似文献   
6.
首先分析了新、旧版《压力容器定期检验规则》中强度校核有关条款的修订变化。然后,以某企业一台在用空气储罐筒体强度校核为例,就"材料牌号不明"、"材质不明"该条款修订变化前后分别对该设备进行了强度校核。结果表明,该条款修订前后选取了不同材料的许用应力值,使得同一台设备得出了不同的校核结果。最后,针对该条款提出了探讨性观点和建议。  相似文献   
7.
Nonfinancial measures (NFMs) are a common feature of strategic performance management frameworks. We examine the role of one widely used NFM: customer satisfaction, in one aspect of strategic performance management: CEO compensation schemes. Drawing on agency theory precepts, we hypothesize that the extent to which firms link CEO compensation to customer satisfaction is influenced by satisfaction's ability to act as a leading indicator of future profitability (lead indicator strength). We further hypothesize that the extent to which customer satisfaction's lead indicator strength influences the weighting of satisfaction in CEO compensation schemes has a positive influence on future shareholder value. Our empirical results offer strong support for both hypotheses and extend research on the use and efficacy of NFMs in CEO compensation schemes. Copyright © 2013 John Wiley & Sons, Ltd.  相似文献   
8.
Given that a powerful CEO is more likely to overcome problems and control performance in a firm, this study first focuses on exploring whether CEO power positively affects certain measures of bank performance and which sources of CEO power have these positive impacts. Next, this study further analyzes whether the positive impact of CEO power on performance is negatively mediated by board strength. Our sample includes data on the three main types of Chinese banks for 2006 to –2016.Our results show that CEO structural power significantly improves a bank’s overall profitability, risk-taking ability and lending quality, CEO ownership power significantly raises a bank’s lending quality, and CEO expert power significantly increases a bank’s overall and shareholder profitability. As considering the endogeneity, CEO prestige power significantly improves a bank’s overall profitability. Next, we use the proportion of independent directors as our measure of board strength and find that a stronger board reduces the beneficial effects of CEO structural power on a bank’s lending quality, of CEO ownership power on shareholder profitability, and of CEO expert power on lending quality. There are similar harmful mediating effects when we use the proportion of foreign investors and board size as measures of board strength. Our results can help Chinese bank authorities develop policies to appropriately raise bank CEOs’ power and reduce board supervision of CEO power.  相似文献   
9.
中药材产业创新能力是中医药事业高质量传承发展的保障。以2009-2018年中国中药材产业已授权发明专利为研究对象。首先构建10个可量化的专利强度评价指标,用CRITIC赋权法对专利指标进行赋权,计算单个专利的专利强度。然后用正态分布函数划分专利强度等级,计算全国各省份的专利强度等级占比。最后以专利强度等级占比情况凸显产业创新发展水平,发现沿海以及围绕直辖市的省份的中药材产业创新发展水平良好,西部欠发达地区创新水平还有很大的发展空间,说明中药材产业创新发展能力与资源分配和经济发展有很大的关系。  相似文献   
10.
In this paper, we examine the profitability of technical analysis for a cross section of individual Arab stocks. Our analysis, undertaken from the perspective of an Islamic investor, reveals that technical trading rules do not yield economically or statistically significant returns. While our results uncover some scant statistical evidence of technical trading rule profitability, risk adjusting the returns weakens the evidence in favor of predictability. Furthermore, break-even transaction costs do not exceed estimated transaction costs or bid-ask spreads in the markets examined.  相似文献   
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