共查询到20条相似文献,搜索用时 0 毫秒
1.
为提高装备可靠性工作效率,研究了可靠性投入收益以及可靠性与寿命周期费用的关系。在此基础上,从经济性角度出发,通过以费用为牵引的逆向分析来优化论证研制阶段装备可靠性指标设计,提出了“可靠性指标调整对 的贡献率”的概念,分两种情况对其进行定义与求解,实现了可靠性要求与寿命周期费用目标的综合权衡,这对于合理确定经费投入规模,提高装备可靠性投入效益和装备效费比具有一定的参考价值。最后,通过实例对可靠性指标的调整与决策过程进行了具体演示。 相似文献
2.
目的研究不同的互动展示形式在信息传播过程中的不同效果。方法以过对观众心理和行为习惯进行分析的方法,了解到体验是展示信息传播过程中较好的传播方式。通过案例分析的方法,得出互动数字媒体展示设计作为信息传播媒介,不仅让观众获取到了信息,还作出了信息的反馈,达到了信息的双向互通。结论互动与体验的展示方式,是当今信息时代展示设计的一个发展趋势。 相似文献
3.
4.
针对产品研发环节,分析了企业的网络能力和技术能力及其交互对产品研发成功的影响,提出了相关假设并利用河南省283家制造企业的调研数据进行了初步的实证检验.结果显示,企业网络能力和技术能力的提高都有利于促进产品研发的成功,但两者的交互作用与产品研发成功之间存在三种关系:显著的互补关系、显著的互斥关系及介于两者之间的潜在的互补(互斥)关系.从知识管理的角度来看,我国制造业企业存在的“引进一落后再引进一再落后”的怪圈,其主要原因之一,可能就是一些来自于企业外部的增量知识与企业内部的存量知识难以融合、进而难以形成系统化的知识,最终难以促进企业产生持续的技术创新. 相似文献
5.
颠覆性创新的扩散过程与中小企业的竞争策略 总被引:6,自引:0,他引:6
颠覆性创新是战略管理理论研究的前沿问题。在分析颠覆性创新扩散过程、采纳者的类别及主要特性的基础上,研究了新兴中小企业培育潜在需求、建立竞争规则、提升核心能力、颠覆在位企业的四步曲竞争策略,描绘了颠覆性创新的扩散过程与新兴中小企业竞争力的形成轨迹。 相似文献
6.
Pablo D'Este 《Industry and innovation》2014,21(1):1-19
This paper focuses on the role of human capital in reducing the barriers to firms' engagement in innovation activities. The paper distinguishes between firms facing barriers that stop them from engaging in any innovation activity, and firms that face impediments in the course of their innovation activity. We investigate whether human capital has a particularly strong impact in relation to lowering barriers among the former group of firms, since a strong skill base is likely to compensate for lack of experience in innovation-related activities or the complementary assets needed for innovation. We draw on four waves of the Spanish Innovation Survey and examine the impact of human capital on three types of obstacles to innovation: cost, knowledge and market barriers. We find that human capital has a significant impact on reducing the barriers to innovation represented by knowledge shortages and market uncertainties. 相似文献
7.
8.
9.
In today's dynamic environment, the involvement of external partners in the innovation process is frequently assumed to be a panacea to cut costs while improving outcomes. In this study, we scrutinize how different collaboration types influence the effects of exploitative and exploratory innovation strategies on new product development (NPD) performance. For our analyses, we draw on a survey comprising a sample of 254 technology-based German firms. Our findings indicate that exploitative strategies are best pursued without comprehensive external collaborations, while the involvement of several partners in a balanced approach is most promising for exploratory strategies. Joint exploration with competitors, in particular, shows the highest effects on NPD performance. The paper discusses the findings and provides several implications for future research. 相似文献
10.
健全和有效率的资本市场是中国经济高质量发展的重要驱动力。中国资本市场A股中小投资者占比90%以上,数量已经超过1.6亿,保护中小投资者利益,建设高质量资本市场显得尤为重要。基于上市公司盈余质量视角,论文试图对营改增、税收征管与资本市场质量的相关性展开实证讨论。因现有分税制格局并未发生根本变化,需要检验地方政府是否会因为结构性减税效应导致强化税收征管,传递到资本市场上,因此能够提高上市公司盈余质量,从而有利于提升中国资本市场的优质信用形象。实证结果显示:营改增后,地方税务机关普遍强化了税务征管力度,并由此促进了上市公司盈余质量的提升;相较市场化程度较低的西部地区,市场化程度高的东部地区企业盈余质量提升效果更显著。 相似文献
11.
为了准确、关联、快速、可控地创建出模型定义技术环境下的零件三维工序模型,采用零件设计模型到毛坯模型的倒推法.首先以不同的加工表面有序地规划成品到毛坯的逆过程;然后创建毛坯模型,并衍生出工序模型,输出关联工序模型的工艺卡片;最后以某一主轴盖为例验证此方法的有效性. 相似文献
12.
13.
The aim of this study is to investigate the value-adding role of corporate monitoring and corporate involvement in ‘sticky’ inter-subsidiary innovation transfer environments. The value added role of these two managerial approaches is viewed in terms of their impact on innovation transfer efficiency and effectiveness. Based on the network view of the MNC, our research builds on the notion that the corporate headquarters (CHQ) is ill-informed and may suffer from a radical uncertainty about what it actually knows and needs to know. By using a data sample containing 87 innovation transfer projects in 25 multinational companies, we test six sets of hypotheses. Overall, our findings show that the value added of CHQ monitoring as well as an active CHQ involvement is considerably constrained. However, contrary to our expectations, the results show that CHQ monitoring gives rise to an increase in both transfer efficiency and effectiveness when the ‘stickiness’ is based on tangible resource constraints. The results imply that when it comes to CHQ involvement during the innovation transfer processes, the choice between a hands-off and a hands-on approach has to be understood in the light of the CHQ’s knowledge situation. 相似文献
14.
Enterprise-University Co-operation and the Role of Public Research Institutions in Regional Innovation Systems 总被引:1,自引:0,他引:1
The paper analyses the co-operative relationships that public research institutions in Germany have developed with manufacturing firms and with each other. We find that collaboration with firms is highly concentrated on regional partners. Research institutions contribute significantly to innovation processes in the respective regions by absorbing knowledge from beyond the region and making it available to local companies. In respect of co-operation between public research institutions themselves, we find that spatial proximity still matters, but to a lesser degree. 相似文献
15.
16.
17.
针对低频耦合腔互易校准中存在的热传导和声泄漏问题,通过理论计算和不同长度耦合腔的系列实验研究,探讨其对互易校准结果的影响规律。首先阐述了互易校准原理及电容传声器低频时的频响特征,传声器均压孔在声场外时,低频声压灵敏度随着频率降低而逐渐增加;其次,对发射传声器-耦合腔-接收传声器构成的耦合腔系统中的热传导修正因子进行计算,结果表明,随着耦合腔长度变长,热传导修正因子变小,不确定度分量变小;通过不同长度的耦合腔组成的互易校准系统研究声泄漏的影响并探讨其优化方案,实验结果表明,10 mm和15 mm耦合腔对互易校准结果影响较小,重复性高,该实验结果与传声器的低频响应特性一致。 相似文献
18.
简要分析了目前世界上较成熟的几种LNG液化技术及国内应用情况,重点研究了陕西定边一期92万m3/天LNG工厂三段混合制冷液化技术及运行情况。一年来的运行实践证明,采用这种液化技术可靠性高、可操作性强、开停机过程容易,经济适用,有明显的优势,非常适用国内LNG发展需要,适合国情。 相似文献
19.
20.
按照JJF1033-2008《计量标准考核规范》的要求,计量标准建标过程中,要进行"检定或校准结果的验证",其验证方法的选用和验证过程的实施,一定要根据所开展检定或校准项目的计量器具的特点,根据实际情况,从可操作性、本身的技术水平和经济实力出发,选择切实可行的方法来正确实施验证。 相似文献