提高采煤机截齿可靠性和寿命的途径

从截齿的制造质量、材料、几何形状和参数等方面,分析截齿的可靠性和寿命的关键影响因素。     

大学新生英语语音现状及其改进措施分析

本文作者根据长期以来在高校英语专业教学中教授英语语音的经验体会,对当前大学新生英语语音学习现状进行分析并提出了改进措施等方面的建议。     

探析建筑工程造价管理方法的改进

工程造价的管理是一个动态的过程,它贯穿于整个工程。在工程实施的时候,工程的各个阶段都要认真的分析,同时也要充分利用建设中的各种信息,把握市场经济,为企业带来最大限度的利益。     

土质边坡分析中的极限平衡法与有限元强度折减法的研究

介绍边坡分析的极限平衡法与有限元强度折减法原理,比较两者优缺点。对均质土坡分别采用有限元强度折减法与极限平衡法进行计算,得到相应的安全系数和潜在破坏面,得到两种方法所得安全系数和破坏面一致的结论,应用有限元强度折减法计算是合理可行的。     

How collaborative routines improve dynamic innovation capability and performance in tourism industry? A path-dependent learning model

Current results of direct relationships between collaboration and innovation capability on performance in tourism contexts are inconsistent. This research is to uncover roles of collaborative routines on promoting relationships between internal and service innovation capabilities as two distinct mechanisms, and performance. The study also examines the contingent effect of knowledge search on performance. Survey data from 181 samples from the Thai tourism industry are gathered for analyses. Findings demonstrate that knowledge search and internal innovation capability have a direct impact on performance, whereas the effect of service innovation capability on performance is significant only in the presence of collaborative routines.     

Frustration-driven process improvement

When employees are empowered to continuously record their employment-related frustrations—doing so on accessible, visually prominent media—process improvement becomes upgraded to operate in a truly continuous mode. Frustrations are a superior target of process improvement in that they get at deep-seated concerns of people who have first-order process awareness and are most directly impacted by process failings. Recording frustrations not only provides a sound basis for pressing on to solutions, but it is also cathartic. The act of recording frustrations prominently on company-sanctioned media provides a positive outlet for the frustrations themselves.     

河北省着力改善两个环境面临的问题与对策建议

着力改善发展环境和生态环境具有十分重要的意义作用,目前河北省在着力改善两个环境的过程中存在一定的问题,需要采取措施积极解决。     

对国内外砂土地震液化评价介绍及比较

本文通过应用国内外不同的勘察规范对同一个工程场地的地震液化等级划分的计算及评价介绍,得出了一个采用不同规范,可取得比较一致的地震砂土液化等级的结论。     

再论我国公司法人格否认制度

10年前的2005年我国在新颁布的《公司法》中大胆的吸收了西方公司法中的一项重要制度，即公司法人格否认制度。该制度的产生是为了规避在股东有限责任的背景下股东滥用有限责任从而损害债权人的利益的问题。我国企业在进行了公司制的改革后，也同样存在着股东可能滥用有限责任的问题，因此在公司法中规定法人格否认是必须的。但是，从10来的司法实践来看，公司法人格否认制度还没有能够完全发挥其限制股东滥用有限责任，保护无辜债权人的立法目的。本文针对在司法实践中存在的问题，在理论上提出一些建议，以求进一步完善公司法人格否认制度。     

Reduced tillage and nitrogen effects on soil water dynamics and maize (Zea mays L.) yield under semi-arid conditions

Soil water and nutrients are critical drivers of crop production for smallholders of southern Africa. A three-year study was conducted to assess the effect of integrating single and double ploughing, ripping and planting basins with nitrogen fertilizer (0, 10 and 20?kg?N?ha^–1) on soil water dynamics and maize (Zea mays L.) yields. The experimental design was factorial with four tillage methods and three nitrogen levels as treatment factors. The study was conducted under semi-arid conditions of Zimbabwe. Tillage methods had similar soil water patterns in the profile and no tillage?×?N interaction effects were observed on soil water dynamics. Soil water penetrated deeper into the profile under ripper and basin methods than conventionally ploughed treatments. Nitrogen increased maize yields (14–96%) and rainwater-use efficiency (20–92%) regardless of tillage methods and growing season quality. However, more studies are required to explore complementary techniques that can improve rainwater capture and prolong soil water storage, and improve soil fertility.