长薄零件淬火后两端翘曲变形原因分析及改进措施设计

长薄零件制备和生产过程中经常遇到淬火后两端翘曲变形现象,使长薄零件质量降低甚至报废,文章分析翘曲变形原因并提出热处理改进措施。     

大学英语学习者语用能力的调查

本文采用Jenny Thomas提出的"语用失误"理论为框架,对不同层次大学英语学习者的语用能力进行了问卷调查,数据统计结果显示大学英语学习者的整体语用能力偏低。处于不同学习阶段的三组学习者呈现相似的语用能力,学习者的语用能力不会随着语言能力的提高而提高。     

Does the Delphi process lead to increased accuracy in group-based judgmental forecasts or does it simply induce consensus amongst judgmental forecasters?

We investigate the relative impact of internal Delphi process factors - including panelists' degree of confidence, expertise, majority/minority positioning - and an external factor, richness of feedback - on opinion change and subsequent accuracy of judgmental forecasts. We found that panelists who had low confidence in their judgmental forecast and/or who were in a minority were more likely to change their opinion than those who were more confident and/or in a majority. The addition of rationales, or reasons, to the numeric feedback had little impact upon panelists' final forecasts, despite the quality of panelists' rationales being significantly positively correlated with accurate forecasts and thus of potential use to aid forecast improvement over Delphi rounds. Rather, the effect of rationales was similar to that of confidence: to pull panelists towards the majority opinion regardless of its correctness. We conclude that majority opinion is the strongest influence on panelists' opinion change in both the ‘standard’ Delphi, and Delphi-with-reasons. We make some suggestions for improved variants of the Delphi-with-reasons technique that should help reduce majority influence and thereby permit reasoned arguments to exert their proper pull on opinion change, resulting in forecast accuracy improvements over Delphi rounds.     

互惠性与理性经济效应的比较性研究

在知识经济时代,行为经济学的发展动摇了传统经济理论的基础,为现代经济学的发展开辟了新的方向。作为行为经济学的基础性假设之一,互惠性偏好对经济人的理性偏好进行了强烈的挑战,从而导致互惠性企业理论对理性管理理论的冲击。互惠性理念在企业管理机制中具有一定的存在性和革命性,促进了管理行为的优化和管理机制的变革,进而有效地改进了企业的运营绩效。基于相同的企业环境,借助于组织学习与知识转移的传导机制,互惠性与理性经济效应的比较性分析深刻地揭示了互惠性偏好的前沿性,验证了互惠性管理策略在现代经济体系中存在着显著的应用价值,从而为我国企业加强互惠性管理战略、进而改进企业的运作绩效提供了现实性的理论借鉴。     

基于薪酬管理角度探析导游回扣问题——以莆田市生态导游为例

以莆田市生态导游为研究对象,利用问卷的方式对莆田市生态导游的薪酬现状进行调查分析,从薪酬管理角度指出了莆田市生态导游回扣问题形成的原因并提出了薪酬改进方案,希望能对解决莆田市生态导游回扣问题有所帮助。     

提高高职高专学生就业能力的教学改革探索

文章从教学改革的角度探讨促进高职高专学生就业能力的提高问题.首先对学生的就业职业进行分析;对人才应有素质的培养模式进行了讨论;就体制创新、专业设置和课程模式改革提出了系统性思路;就加强基本功训练,实施分层教学,发挥导师制功能,激发高职高专学生个性张扬,达成人才培养目标模式需要的系统性教学改革举措进行了探讨;并利用近五年教学改革探索的成功实践做出了验证.     

浅谈城市河道水环境综合整治

河道水环境对城市生态环境建设有着十分重大的意义。城市河道水环境综合整治正在不断壮大规模,现阶段正在朝着防洪固堤、水质提升、水环境改善方向发展,并且城市河道水环境的综合整治还要求对城市污水排放进行严格化管理,防止生活用水和工业污水对河道造成污染。论文主要对当前城市河道水环境存在的问题进行探讨,并对当前存在的问题提出一些具有针对性的解决措施。     

论我国大气污染生态补偿法律机制的完善

大气污染生态补偿法律机制对于促进区域大气污染联合治理、实现大气污染治理法律正义、创新与完善生态补偿法律机制等具有重要意义。我国现有法律法规就大气污染生态补偿进行了原则性规定,特别是山东、陕西、湖北等地方性法规更是对大气污染生态补偿进行了探索性规范,为大气污染生态补偿法律机制完善提供了有益经验。但从总体来看,我国大气污染生态补偿法律机制尚存在缺乏专门法律支撑、生态补偿主体过窄、补偿方式单一、补偿标准不合理、法律责任不完善等问题。为促进生态文明战略与强化大气污染生态补偿的法律保障,我国应以科学理念为指导,采取有效措施推进大气污染生态补偿法律机制完善。     

浅析知识管理与企业核心竞争力

在新经济时代,知识管理对企业的发展日益重要,本文从知识管理的内涵出发,分析了知识管理与企业核心竞争力的关系,提出了加强知识管理,提高企业核心竞争力的几点对策。     

But are they Meritorious? Genetic Productivity Gains under Plant Intellectual Property Rights

The objective of this paper is to evaluate the effect of Plant Variety Protection (PVP) on the productive merit/yield increases of US seed varieties. As an example, we use wheat varieties, which are and have been available as both protected and unprotected under PVP from both the public and private sectors. We find evidence that PVP has contributed to the genetic improvement of wheat, using varietal trial data from Washington State. As the private open‐pollinated varieties exist only because of PVP and are higher yielding, these results indicate a clear public benefit from PVP.