室温下测定钻井液用固体加重剂的密度

实验室测定钻井液用固体加重剂如重晶石粉、石灰石粉、超细碳酸钙粉等密度时,大多采用李氏密度瓶法和甘氏密度瓶法.其主要测定原理都是测定一定质量的固体加重剂排开煤油液体的体积数,从而计算出钻井液用固体加重剂的密度.     

土地面积和地价单位换算的简便方法

由于历史原因,我国土地面积的计量单位在不少场合仍沿用"亩"这个单位.基准地价也往往用"万元/亩"作单位.但我国土地面积的法定计量单位是"平方米".土地面积单位在"亩"与"平方米"之间以及地价在"万元/亩"与"元/平方米"之间的换算,还是土地价值评估中经常要遇到的事情.     

Financial statements based bank risk aggregation

One of the major challenges involved in risk aggregation is the lack of risk data. Recently, researchers have found that mapping financial statements into risk types is a satisfactory way to resolve the problem of data shortage and inconsistency. Nevertheless, ignoring off-balance sheet (OBS) items has so far been regarded as the usual practice in risk aggregation, which may lead to deviations in conclusions. Hence, we improve the financial statements based risk aggregation framework by mapping OBS items into risk types. Based on 487 quarterly financial statements from all 16 listed Chinese commercial banks over the period 2007–2014, we empirically study whether the overall impact of OBS activities and the individual impact of each of the OBS risk types on total risk depend on bank size. Moreover, this research divides the sample into two subsets, during and after the subprime crisis, to find out how the subprime crisis affects risks of Chinese banks. Our empirical results show that although OBS credit risk is positively linked to total risk while OBS operational risk is negatively linked to total risk for both large and small banks, the overall impact of OBS activities on total risk depends on bank size. The overall OBS activities are positively related to the large bank’s total risk while they are negatively related to the small bank’s total risk. Besides, we also found that it is the increase of liquidity risk and market risk that leads to the larger total risk of Chinese banks during the subprime crisis.     

M2与社会融资规模偏离的原因及趋势研究

货币政策由数量型向价格型调控转型过程中,价格似乎变得更为重要。尽管如此, 货币数量与资金价格仍是观察“硬币”的两面,数量的趋势或能预判价格的变化。金融严监管 的背景下,货币数量尤其是广义M2在过去一年出现剧烈的收缩,而另一个货币数量指标社会 融资规模却仍然强劲,二者的分化使得我们感知货币松紧以及经济冷暖出现分歧。本文基于 M2和社会融资组成结构的异同点,分别对M2和社会融资近年来在金融自由化和金融监管收紧 过程中的变化机理进行梳理,并对未来趋势予以预判。首先,文章区分了M2和社会融资的组 成结构异同点,从共同的影响因素信贷入手进行分析和预判;其次,依据货币派生的机理,从 商业银行资产负债表来分析引起M2变动的主要矛盾进行深入解读;再次,对于引发社会融资 变动的信托和委托变化趋势予以分析。最后我们得出结论,由于监管重点的时间差异使得此轮 M2先于社会融资回落,未来二者分化将逐步收敛。     

Experiencing meaningfulness climate in teams: How spiritual leadership enhances team effectiveness when facing uncertain tasks

This study integrates social information processing theory with leadership and climate literature, and aims to produce novel theoretical insights into whether and how spiritual leadership and task uncertainty foster conditions to enhance meaningfulness climate and subsequent team effectiveness in China. Team effectiveness was operationalized as team performance and team organizational citizenship behavior (OCB). Based on data collected at three time points over 12 months from multiple sources of 123 teams in China, we found that spiritual leadership was positively related to team performance and team OCB through meaningfulness climate. Further, the relationship between spiritual leadership and meaningfulness climate was stronger for teams with high task uncertainty than teams with low task uncertainty.     

物流产业集聚与扩散演化机制研究

对物流产业集聚、扩散的内涵进行了探讨,并对物流产业集聚与扩散演化机制、演化模型与规律的理论基础与研究现状进行了综述,从集聚经济、集聚不经济出发,提出物流产业集聚与扩散演化机制框架,分析其基本演化过程,讨论了影响物流产业演化的间接因素和直接因素。     

基于Citespace的物流企业管理研究科学知识图谱分析

通过分析我国物流企业管理的研究历史和现状,归结出当下讨论热点,判断未来研究趋势,为后续我国物流企业管理的发展创新提供参考意见。以CNKI数据库中2005~2019年刊载的371篇物流企业管理文献为数据基础,运用Citespace软件,绘制发文时间、关键词共现等图谱进行分析,研究结果显示:物流企业管理研究的发文量总体呈下降趋势;围绕焦点的研究话题较为分散;企业物流、物流管理、第三方物流、物流成本、对策是高频关键词,代表物流企业管理研究的热点;研究前沿主要体现在绿色物流、服务质量管理、风险管理等主题上。     

人才培养目标与教学管理水平的关系整合——以高职土建类专业为例

高职土建类专业人才培养目标与教学管理有着密切的关系。教学管理对人才培养目标的实现产生多方面的影响,主要体现在目标管理、过程管理、绩效管理三个方面,在明确学生学习目标、激励学生学习动力、调动学生学习积极性、引导学生全面发展等方面具有举足轻重的作用。为了更好地实现人才培养目标,应实现教学管理重心从传统的过程管理向目标管理和绩效管理的根本性转变。     

"互联网+"时代认知学徒制实施的新特点

"互联网+教育"是指将互联网思维应用于教育领域,形成新的教学理念,同时利用新一代信息技术来提高教学绩效的一种改革思路.本文在分析"互联网+"时代教学理念的基础上,重点阐述了"互联网+"与认知学徒制融合的实施策略,包括立体化教学模式、虚拟情境设计和教学活动中的技术融合.嵌入了"互联网+"技术的认知学徒制教学,将具有更大的潜力,在可实现性、安全性、灵活性以及教学效果方面,都远胜于传统的认知学徒制模式.     

新冠肺炎疫情对居民消费的影响及对策

2020年春节期间,湖北省武汉市爆发的由新型冠状病毒感染引起的肺炎疫情正在对中国经济和消费带来负向冲击。从逻辑上看,除了直接限制消费外,疫情还会通过收入效应、财富效应、实际购买力效应对消费形成不利影响。从历史上看,十七年前的"非典"疫情对经济和消费的影响是短期的,但此次疫情影响更大,持续期存在不确定性。稳定消费的关键是稳定居民收入,要稳定居民收入就需要稳定非农产业就业。基于分析,本文提出了一揽子政策建议。