影响...

We review the effect of rare earth ions on bone metabolism as the following three aspects:(1)effect of rare earth ions on differentiation and function expression of osteoblasts and osteoclasts;(2)effect of rare earth ions on the osteogenic and adipogenic differentiation of bone marrow stromal cells;(3)effect of rare earth ions on bone mineral phase of animals.

本文回顾了稀土离子对骨代谢影响的研究进展，探讨了其药用和安全性问题，主要从以下三个方面进行综述：(1)稀土离子对成骨细胞细胞和破骨细胞的分化和功能表达的影响；(2)稀土离子对骨髓基质细胞成骨分化和成脂分化的影响；(3)稀土离子对动物骨矿物相的影响。

The results showed that slope form was the most important factor which influenced diameter, height and trunk's basic volume weight of Alnus cremastogyne from plantation and the slope with less than 45 degree influenced the diameter and height insignificantly.

结果表明，影响桤木人工林胸径和树干公定容重的首要地形因子是坡形，其次是坡向，再者是坡位，而小于45°的坡度影响不显著；影响桤木人工林树高的首要地形因子是坡形，其次是坡位，再者是坡向，小于45°的坡度影响同样不显著。

The environmental impact during production, usage and residual period of arsanilic acid was assessed in viewpoint of life cycle.

本文介绍了最常用的有机胂制剂－对氨基苯胂酸的主要用途和污染特征，从生命周期的角度识别并定量评价了其生产、使用和残留过程的环境影响，评价结果表明对氨基苯胂酸在土壤中最终残留的环境影响占其整个生命周期的99%以上，指出了常规环境影响评价在评价其环境污染上的局限性，据此提出逐步减少或禁止有机肺制剂的生产和使用、并在一些特殊的建设项目环境影响评价中推广生命周期评价的建议。

It could be found that the effects of disturbances on plant species composition and diversity were related to the characteristics of disturbances and plant communities, bionomic of plant species, and the resources of the disturbed locations.

在介绍了干扰的概念及其性质和干扰对物种多样性影响的有关假说基础上，以森林干扰为主要对象，探讨了干扰对植物群落物种组成的影响，并从干扰类型、干扰强度和干扰频率等几个方面阐述了干扰对植物群落物种多样性的影响；另外，还分析了重要的小尺度干扰―林隙在该方面的影响。

In the paper, some factors influencing the effect of reduction including the anodic material, the cathodal material, the area ratio of cathode to anode and the kind of electrolyte have been investigated and screened out. The result showed that under the same reduction conditions, the reduction of Cr6+ has better effect to use lead-antimony alloy as anode, iron plate as cathode, which area ratio is 7:1 and potassium sulphate as electrolyte.

本文首先对影响电解还原效果的阳极材料、阴极材料、阴阳极面积比和支持电解质加入的种类等因素进行了研究筛选，结果表明：在同样电解还原条件下，实验中阳极采用铅-锑合金，阴极采用铁板，阴阳极面积比取7∶1，支持电解质取为硫酸钾时，具有较好的Cr~(6+)还原效果；同时在采用铅-锑合金作阳极的条件下，通过正交实验，对影响直接在碱性介质中电解还原低浓度含铬废水的其他因素进行了研究，即研究了在电化学还原过程中，Cr~(6+)的初始浓度、极板间距、支持电解质的加入量、搅拌情况等因素对还原效果的影响程度，确定出了主要的影响因素。

The effective stimulating sites were indentified by defensive cardiovascular response and other components of defence reaction evoked by 3 s trains of rectangular cathodal pulses (100Hz, 0.5ms pulse duration, 70 -150μA intensity for dPAG and 150-250μA for PF) delivered from a programmed multichannel constant current stimulator. The responses included an increase in blood pressure and heart rate, pupillodilation and an increase in the rate and depth of respiration. Currents of 1Hz, intensity of 100- 150μA for dPAG and 200-250μA for PF were used to observe the effect of the stimulation of them on RVLM neurones. The deep peroneal nerve and superfacial deep peroneal nerve were carefully separated, and put on a pair of stimulating electrode respectively, Both nerves were stimulated with constant rectangular pulses of 1Hz, 0.5ms duration and 300μA current intensity to see their effects on RVLM neurones. The baro-and chemo-receptors were activated by the intravenous injection of phenylephrine or 0.208 M NaH2PO4. The degree of convergent inputs to individual RVLM neurone was studied by the stimulation of the sites mentioned above. It was found that neurones about 61.4%(27/44) and 35.3%(6/17) received convergent inputs from three and four places respectively.

过去的研究主要集中于整体水平，利用电刺激或化学刺激RVLM神经元，观察对血压、心率及交感活动的影响，并对影响心血管交感活动的神经递质进行了广泛探讨，积累了大量资料；在神经元水平，主要研究刺激脑内核团、外周神经、化学感受器及压力感受器等对RVLM神经元放电的影响和某些神经递质影响神经元活动的机制、然而，对RVLM神经元如何整合不同信息、其可能突触机制等研究得较少，本互作拟采用在体细胞内、细胞外记录电活动与微电泳，结合中枢核团及外周神经电刺激等方法，对RVLM神经元在不同状态下的整合作用规律与可能机制进行初步探讨，为进一步了解这一复杂的整合过程提供新的理论依据。

Our results show that impacts of these environmental factors on geographical distributions of Chinese Chiroptera are in order of annual average temperature,days of temperature above zero degree,January average temperat...

结果表明，按其影响程度大小，影响中国翼手目动物地理分布的连续型环境因子依次为年平均气温、大于零度日数、一月份平均气温、无霜期日数、年降雨量、年平均相对湿度、七月份平均气温、海拔高度和年日照时数，其中年日照时数和海拔高度为负影响；影响翼手目种数密度分布的决定环境因子是年降雨量，但年平均气温也有明显作用。

Analytical results show that: Anode evaporation rate, which determines mostly the production rate of UFMP, is influenced by the many factors including electric parameters of arc, ambient conditions and material properties et al; Existence and increase of anode ejection can influence the production rate and property of UFMP; It is firstly found and investigated that surface connexity phenomenon of Al anode material. Analyses and calculation show that formation of anode spot and existence of self-magnetic field force play an important part in surface connexity process; Effects of cathode material on prepared UFMP is also experimentally studied and theoretically analysed. It shows that effect of the cathode is inconsiderable under the experimental conditions used in the study. At last, the experimental results found in part one are analysed and discussed in detail.

然后详细分析了电弧与电极间的相互作用过程，结果表明：决定超微粉产率的阳极材料蒸发率受许多因素影响，它主要与电弧电参量，环境条件及材料性质有关；阳极表面液滴喷溅的存在和加剧将严重地影响所制超微粉的产率和性质；首次发现和实验研究了Al阳极表面凸起现象，并对此现象进行了详细的理论分析和实际估算，认为阳极斑点的形成及自磁场作用力的存在在该过程中起着重用作用；实验研究和理论分析了阴极材料对所制超微粉的影响，认为在本文所用实验方法及条件下，阴极材料对粉的影响很小。

A number of research outcomes were concludedThe main conclusions: 1 the capital intensive, recourses intensive, scale-based benefit, high pollution and high industrial correlativeness are five most influential factors in paper industry; 2 theoretically, resources endowment, financing ability, quality of enterprise, structure of industrial organization, relevant industries, and the institutional environment are six key components of competitive power for regional paper industry. Among them, quality of enterprise, financing ability and the structure of industrial organization are the key elements for regional competition in paper industry; 3 the assessment of the competitiveness power of Fujian paper industry has showed that during 1999-2005, the competitiveness power of Fujian paper industry was stable; 4 financing ability and the structure of industrial organization have positive impact on the competitiveness power of paper industry; 5 The SWTO analysis shows that the advantage of Fujian paper industry is resource abundance, however, the disadvantages are financing ability and the structure of industrial organization.

主要结论有：①资本密集、资源密集、规模效益显著、污染型、产业关联度大等5个方面是造纸产业最为重要的5个特性；②从理论上分析，区域造纸产业竞争力的主要构成要素包括资源禀赋、融资能力、企业素质、产业组织结构、关联产业与制度环境等6个要素，其中企业素质、融资能力与产业组织结构是区域造纸产业的核心要素；③从福建省造纸产业综合竞争力的纵向测评结果来看，1999-2005年福建省造纸产业综合竞争力的表现较为稳定；④融资能力与产业组织结构对区域造纸产业竞争力具有显著的正向影响作用，它们是区域造纸产业竞争力最重要的影响因素；⑤根据SWOT分析结果表明，福建省在资源--对区域造纸产业竞争力影响有限的因素—拥有竞争优势，而在融资与产业组织结构等—对区域造纸产业竞争力有重要影响的因素-处于竞争劣势。

On the investigation, main factors impacting success of A company product development management is product development progress, product development flow management, process monitor, organization structure, product development quality , product development cost, management mechanism of product development project, resource match, and establishes ISM of factors, the degree of base factors impacting the success of product development management decreasingly is product development management flow, management mechanism of product development project, organization structure of product development management with AHP method.

其次，借鉴业界经验并通过高层领导小组研究讨论，确定了A公司产品开发管理效率的评价指标，对评价指标采用逐对比较法判断指标的相对重要性；通过调查得出影响A公司产品开发管理效率的八个主要因素，它们分别是产品开发进度、产品开发流程、过程监控力度、组织结构、产品开发的质量、产品开发的成本、产品开发项目的管理机制和资源匹配的齐全度。建立了影响因素的解释结构模型，运用层次分析法得出影响产品开发管理效率的根本因素，并按影响程度，由大到小排序为产品开发管理的流程、产品开发项目的管理机制、产品开发管理的组织结构。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐