企业人力资本的性质及其评估方法探讨

本文认为人力资本是企业一项特殊的无形资产，迄今为止，对它的研究可归纳为三个不同的方面，分别采用不同的方法和理论进行研究。对人力资本的真实价值的评估是整个人力资本研究的中心，也是难点，本文从人力资本性质的探讨出发，在分析现有人力资本价值评估特点的基础上提出自己的人力资本价值评估方法

实验室建设与运行管理的探索与实践

文章阐述了高校实验室建设在\"双一流\"建设中的重要支撑作用。结合厦门大学化学化工学院物理化学实验室建设和管理的探索与实践,从物理化学实验室建设特点出发,探讨了如何统筹管理、规划、设计、整合、优化实验室布局结构等,并分享了实验室装修、改造过程中的思路和举措。建一流实验室促进实验教学的长远发展,充分发挥物理化学实验室在培养一流人才中的作用,以期推动\"双一流\"工程良好快速发展。2017年厦门大学教学改革研究项目(JG20170222);;\n国家基础科学人才培养基金项目(J1310024);;\n2016年度教育部“基础学科拔尖学生培养试验计划”研究课题资

穿爆弹撞靶效应数值分析

利用流体弹塑性模型和欧拉算法对穿爆弹撞击有限尺度模拟靶的力学效应进行了数值分析。给出了撞靶过程中各物理量的变化，分析了靶板尺度、撞靶速度对撞靶效应的影响

公共服务水平与经济发展水平相适应机制建设的本土探索——厦门市的案例研究

本文是厦门市社会科学调研课题资助项目——“厦门建立公共服务水平与经济发展水平相适应机制的研究“课题报告(全文5万余字)的摘要。该研究报告对公共服务与经济发展二者之间的相关性及其影响程度进行理论分析与实证检验;利用“公共服务——经济发展动态均衡模型“,对“十二五“时期厦门市公共服务与经济发展的相关性做出预测;尝试构建公共服务水平与经济发展水平相适应的机制;从建设服务型政府、确立最优公共服务水平、明确公共服务合理支出以及保障公共服务有效供给等方面提出了关于厦门市公共服务水平与经济发展水平协调发展的对策思考。2011年度厦门市社会科学调研课题资助项目;厦门大学“985工程”-公共管理重点学科;厦门大学“211工程”三期-“公共政策与政府治理”建设项

Ni/SiO2在甲烷部分氧化反应中的稳定性:W修饰的影响

甲烷部分氧化制合成气反应(POM)是天然气、页岩气资源利用的重要途径之一,常用的Ni/SiO2催化剂在反应中易发生表面积炭而失活。为了解决这一问题,我们采用尿素沉淀法制备W修饰的Ni基催化剂,并考察其在POM反应中的稳定性和W的作用。结果表明,催化剂中适量W的存在可显著改善其POM反应稳定性。其原因为Ni-W作用修饰了Ni的化学态或其亲氧能力,从而改善了其表面抗积炭能力。此外,反应中催化剂表面形成的α-WC具有一定的抑制表面积炭形成的能力,且该α-WC具有良好的稳定性。国家自然科学基金(21373169);;\n教育部创新团队(IRT1036)资助项目~

垂直跳びにおける前伸張の速さ・強さが跳躍高におよぼす効果

The purpose of this study was to investigate the influence of the prestretching speed and strength of the thigh extensors during take-off phase on the jumping height in vertical jump. Five males performed the following several vertical jumps : squatting jump (SJ) from a static knee bending position ; counter movement jump (CMJ) with a preparatory counter-movement ; drop jump (DJ) from the five different heights (20, 40, 60, 80 and 100cm) on to the platform followed immediately by a vertical jump. All of these jumps were performed on the force-platform (Kistler) with the arms kept at the back. The jumping motions were recorded with the high-speed video tape recorder (NAC : HSV-200) from subject\u27s side at 200 f. p. s.. The results obtained from this study were summarized as follows : 1) The highest height of rise of center of gravity was obtained in CMJ. 2) When observing the result only in the DJs, the highest jumping performance was obtained in the DJ from a height of 40cm. 3) An average velocity of center of gravity during down phase in CMJ which showed the highest performance was 0.71m・sec^. 4) Prestretching force in CMJ was higher than that in SJ, but on the other hand it was lower than that in DJs. 5) Both angles of the knee and hip joints at the maximal knee bending position in CMJ which showed the highest performance were about 70 degrees

Over One Hundred Year Sedimentary Record of Polycyclic Aromatic Hydrocarbons in the Andaman Sea, Malaysia

[摘要]：采用GCPMS 分析研究了马来西亚海域安达曼海兰卡威岛邻近海域沉积物柱样(WC02) 中多环芳烃(PAHs) 组成与含量的 垂直分布特征, 结合210Pb定年, 重现了该海域近百年来PAHs 的沉积历史( 1898~ 2004 年) . 研究表明, PAHs 在整个沉积剖面( 0 ~ 56 cm) 的含量介于1312~ 6011 ng# g- 1 之间( 平均值2814 ng# g- 1) , 所分析的PAHs 中以菲、萘、等化合物为主, 与当地周边海 域相比污染程度较轻. 在20 世纪20 年代以前, 沉积物中多环芳烃含量较低, 基本代表当地环境的本底值, 即多环芳烃主要来 源于天然物质的输入; 20 年代以后PAHs 的总量有所上升, 并在20 世纪60 年代和80 年代出现了2 个峰值, 表明这段时间内多 环芳烃的陆源输入特征比较明显, 也反映了人类活动在20 世纪20 年代后开始对该海域产生一定的影响. 采用母体、高低环 PAH 比值对沉积物柱样中PAHs 的来源进行分析, 表明该海域沉积物受到燃料不完全燃烧产物污染为主、并伴有石油类污染, 这与马来西亚西海域周边地区的人类活动( 工农业生产、进出口、海上活动等) 密切相关, 同时也受到马六甲海峡繁忙的海上 交通运输影响. 对沉积物柱样污染历史进行分析, 表明PAHs 含量的阶段性变化与该地区不同时期的人文活动和社会经济( 国 内生产总值) 的发展状况密切相关, 较好地反映了人类活动对环境的影响.[Abstract]:Polycyclic aromatic hydrocarbons (PAHs) in a sediment core collected from Langkawi Island of the Andaman Sea, Malaysia were determined by GCPMS, the vertical variations of concentration and distributions of PAHs were investigated. In combining with 210Pb2dating, the PAHs sedimentary record in the last 100 years was reconstructed and their possible sources were also discussed. The EPAH concentration ranged from 131226011 ng#g- 1 in the whole sedimentary section ( 0256 cm) with the dominant compounds of phenanthrene, naphthalene and perylene. The sediments contaminated to a lesser extent comparing with the surrounding waters. Before the 1920s, the concentrations of PAHs were considered to be the background level, which was implied from the natural inputs. The historical records of PAHs in the core showed that two distinct peaks which represented the input time of 1960s and 1980s, respectively, inferred that there were some relatively dramatically land2based inputs, and human activities leaded a clear impact to these waters during these periods. Furthermore, PAHs diagnostic ratios indicated that PAHs in the core sediments were mainly of pyrolytic origin ( combustion) , accompanied with minor petroleum origin. These were related with agriculture, industry, ocean import and export, and shipping activities in the surrounding regions. Meanwhile as the vital communication line, the marine transportation of the Strait of Malacca had influenced the environmental quality of the Andaman Sea. Meanwhile, based on the sedimentary record, PAHs concentrations were found to correlate positively with humanism activities and socioeconomic development (Gross Domestic Production) in the surrounding regions.国家自然科学基金项目( 20777060) ; 国家海洋局海洋三所 科技项目( 海三科2007021

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