大跨度公路隧道穿越断层破碎带施工技术

结合工程实例,通过对穿越F19(鸡笼山断裂)、F20(源潭断裂)的莲花山2#隧道施工实践的归纳,借助超前地质预报手段,根据围岩情况及时调整施工方案,取得良好效果,通过该段施工更加深了对地下工程特别是特殊地质的认识。     

在炼钢生产中如何降低石墨电极消耗

石墨电极消耗率是电炉炼钢生产的一个重要技术经济指标。近年来我厂1.5t电弧炉炼钢生产中,石墨电极消耗率呈现上升趋势。针对这一问题,我们实施现场攻关,发现电极折断消耗是石墨电极消耗大的主要原因。通过对电弧炉设备大修、改善炼钢环境、规范炉前操作行为,有效地解决了炼钢生产中电极折断消耗高的问题,使石墨电极消耗率从18.7kg/t降低到8.4kg/t,且取得了良好的技术效果和经济效益。     

基于分形理论的广西城市体系空间结构研究

城市是人口和经济的聚集地,城市体系空间结构具有分形几何特征。将分形理论与中心地理论相结合,通过城市体系的关联维数模型计算出广西城市体系空间结构的分维值,发现广西城市体系的空间分布是具有分形特征,城市体系自组织演化在空间结构方面具有优化趋势,可以强化中心、极化南宁核心地位,重点扶持桂林、柳州、北海三个副中心建设,构建"一枢纽、二港口、三通道、四辐射"大通道体系和点轴面相结合发展的广西城市体系空间结构。     

谈桥梁裂缝在道桥工程中的影响

本人结合多年参与公路桥梁现场施工工作实践,对部分桥梁在建设过程中常见的一些裂缝类型进行归类总结,通过查找原因分析问题,才能让我们真正地了解各种裂缝的引发成因,进而制订防范措施,达到预防布控之目的。     

福斯特生态学马克思主义探析

约翰·贝拉米·福斯特是生态学马克思主义的重要思想家和代表人物。福斯特在马尔库塞的制度批判和社会批判、阿格尔的消费异化导致生态危机、奥康纳的双重危机等理论的基础上,通过对马克思主义经典著作的文本解读,运用马克思主义生态唯物主义理论和方法,深刻分析了资本主义与生态矛盾的根本原因,提出了自己的生态学马克思主义思想,同时完成了对马克思主义生态学思想的理论重构。     

Initiation of business relationships in service-dominant settings

Industrial companies today are becoming increasingly service-oriented and therefore need to shift from selling hardware to valuing services and managing customer relationships. A new and particularly significant challenge for these companies is how to initiate relationships which is an issue that has received surprisingly limited scientific attention. The aim of this study is to develop a conceptualization that explores the dynamics in the relationship initiation process in service-dominant settings. Narratives from three sellers of professional services, augmented with narratives from a buyer's view, form the empirical basis of the study. The dynamics in the relationship initiation process are clarified with three new concepts: status, converter, and inhibitor. The paper concludes with implications of the new conceptualization and suggestions for future research.     

关于某水箱维修店氧气瓶爆炸事故之原因分析

提出可能引起氧气瓶爆炸的各种原因,根据调查结果,利用推理论证法和排除法对各种原因进行分析,并从金属失效形式的本质即断裂特征进行分析论证,得出具体的爆炸原因和爆炸性质。     

改善圆钢切断口形变的力分析与方法研究

分析了引发钢件二次加工中切口材料损耗的断口形变力学机理,提出一种动刀片偏离安装、实现滚动切断的改良切制方法。运用Adams分析表明,该方法能改善圆钢在钢筋切断机上的断口圆度,从而能减少钢件二次加工量,提高材料利用率。     

关于新疆少数民族大学生就业、创业问题的调查与思考

近年来全国整体就业形势不容乐观,而新疆少数民族大学生就业面临更为严峻的形势。新疆少数民族大学生就业观念有所改变,有较强的创业意识和积极的心态,但在就业、创业过程中还存在优势不突出、综合素质和创业能力有待提高、创业环境有待优化等问题。因此,政府等部门应更加重视少数民族大学生的就业和创业,为其提供良好的环境;高校也应在专业设置上突出优势,并积极联合企业进行创业教育。更为重要的是,少数民族大学生也应不断转变观念,努力提高自身素质和综合能力,为创业和就业打下坚实的基础。     

Rethinking ‘Top‐Down’ and ‘Bottom‐Up’ Roles of Top and Middle Managers in Organizational Change: Implications for Employee Support

In this study we integrate insights from ‘top‐down’ and ‘bottom‐up’ traditions in organizational change research to understand employees’ varying dispositions to support change. We distinguish between change initiation and change execution roles and identify four possible role configurations in which top managers (TMs) and middle managers (MMs) can feature in change. We contend that both TMs and MMs can play change initiation and/or change execution roles, TMs and MMs have different strengths and limitations for taking on different change roles, and their relative strengths and limitations are compounded or attenuated based on the specific configuration of change roles. We subsequently hypothesize employee support for change in relation to different TM‐MM change role configurations. Our findings show that change initiated by TMs does not engender above‐average level of employee support. However, change initiated by MMs engenders above‐average level of employee support, and even more so, if TMs handle the change execution.