厦门邮政储蓄发展的思考

厦门邮政储蓄从1986年6月25日恢复办理以来，依靠邮、电 网络和劳动力密集的优势，到1998年底已发展到拥有46个网点、15.25亿的存款余额、7.23 ％的市场占有率、48.89万个用户和3279万元利差收入的规模，取得了较好的社会效益和企 业效益，但随着规模的不断壮大，厦门邮政储蓄面临经营方式、管理体制等制约发展的问题 ，本论文就厦门邮政储蓄的实际情况，做一些分析、提出建议。 〖HTH〗第一章〓厦门邮政储蓄发展的现状。〖HTK〗介绍我国邮政储蓄的发展 历程，特别介绍1986－1990年的代办阶段和1990年1月1日起的自办阶段邮政储蓄的经营模式 。本章重点介绍了厦门邮政储...学位：管理学硕士院系专业：管理学院企业管理系_工商管理硕士(MBA)学号：19961503

Ki-67与脑膜瘤分级及复发的相关性分析

目的分析Ki-67与脑膜瘤分级及复发的相关性。方法收集2005年1月—2013年5月的172例脑外科脑膜瘤初次手术治疗患者病理标本,采用免疫组化染色检测标本中Ki-67的阳性率,随访患者5年内复发情况,并分析Ki-67与脑膜瘤分级及复发的相关性。结果Ⅰ、Ⅱ、Ⅲ级脑膜瘤患者的Ki-67阳性率分别为(1.70±1.13)%、(4.81±3.63)%和(25.00±8.53)%,Ki-67阳性率逐渐增高,差异有统计学意义(Z=79.474,P <0.05)。随访5年,复发患者32例。复发患者Ki-67阳性率(10.94±12.25)%高于非复发患者(2.30±2.34)%,差异有统计学意义(Z=3.958,P <0.05)。结论 Ki-67与脑膜瘤分级及复发有关,具有重要的临床价值

LED fluorescent lamp driver power with power factor correction

文中提出了一种带功率因数校正的lEd日光灯驱动电源,该电源具有电路简单、可靠的优点,实测数据表明,在较宽电压范围内,驱动电源工作稳定,其具有较高功率因数.This paper introduce a LED fluorescent lamp driver power with power factor correction,the power supply circuit has the advantages of simple,reliable,and the measured data show that in a wider voltage range,the drive power can work stably,and the power factor is higher

Population genetic structure of three stocks of Acanthopagrus schlegelii based on mtDNA control region sequences

本研究通过控制区序列片段,分析来源于浙江东极(dJ)、广东澳头(AT)及海南万宁(Wn)海域3个黑棘鲷ACAnTHOPAgruS SCHlEgElII野生群体间的遗传多样性、遗传结构及群体历史动态。d-lOOP基因序列测定结果表明,3个群体88个个体长序列长度范围为715~716bP,共定义了59个单倍型,单倍型多样性0.949~0.985,核苷酸多样性0.0068~0.00901,表明选取的3个野生群体都具有较高的遗传多样性水平;由AMOVA分析结果可以看出,东极与澳头2个群体的遗传分化较为明显,其余群体间则无明显的遗传分化;构建的单倍型邻接关系树显示出3个群体未有明显的谱系结构,从而支持了可将黑棘鲷南方群体归为同一个管理单元的观点;中性检验及核苷酸不配对分布表明黑棘鲷经历过更新世晚期的群体扩张事件。地理历史事件、海流及人工增殖放流的影响可能是黑棘鲷各群体现有的遗传多样性和遗传结构的主要原因。In order to elucidate background information on the genetic diversity and population history of Acanthopagrus schlegelii, the genetic diversity, population genetic structure and demographic history of Dongji stock, Aotou stock and Wanning stock of the black porgy were analyzed based on the control region fragment of mitochondrial DNA in this study.The results showed that the sequences of 88 individuals of the three stocks were 715~716 bp in length and that there were 59 haplotypes.The value of haplotype diversity ranged from 0.949 to 0.985 and the nucleotide diversity, from 0.0068 to 0.00901.These results indicated that the three wild stocks presented a high level of genetic diversity.Significant population differentiation was detected for the two populations of Dongji stock and Aotou stock, while there was no significant genetic differentiation between Dongji stock and Wanning stock as well as between Aotou stock and Wanning stock.In addition, no obvious lineages and geographic clusters were found in the neighbor-joining tree, which supported the notion that unique management unit(MU) was recognized on the basis of the southern populations.Both neutrality tests and mismatch distribution analysis suggested a late Pleistocene population expansion for the three stocks.The genetic diversity and population genetic structure revealed were attributed to the absence of geographic barrier, influence of sea currents and human activities.海洋公益性行业科研专项项目(201005013、201105012

Research on International Competitiveness of Chinese Manufacturing Using the Method of Unit Labor Cost

计算、比较中国与主要出口竞争国的单位劳动力成本(ulC),发现中国制造业仍然具有较大的国际竞争优势,原因是多年来制造业劳动生产率增速明显快于工资增速,使单位劳动成本保持下降趋势。相对单位劳动力成本(rulC)的比较结果显示,即使不考虑提高工资将促使劳动生产率进一步提升以及基础设施、国内市场、政治环境等方面的优势,在现有劳动生产率水平上,中国制造业仍能够承受约50%的劳动报酬上升。用购买力平价调整后的ulC数据说明,尽管汇率低估在一定程度上强化了中国制造业国际竞争优势,但2005年汇率改革以来,这种附加优势已基本消失。Through calculating and comparing the Unit Labor Cost(ULC) and Relative Unit Labor Cost(RULC) between China and major export competition countries,this article found that Chinese manufacturing still had a large international competitive advantage,and the reason lied in that the growth rate of labor productivity of manufacturing workers was significantly faster than wage growth,which made the downward trend in unit labor cost.Furthermore,the comparison of RULC shows that even without considering that the higher wages will lead further improvement of labor productivity and the advantages in infrastructure,domestic market,and political environment,China is still able to withstand about 50% of the rise in labor compensation under the existing level of labor productivity.In addition,by calculating the adjusted ULC data with purchasing power parity,this paper revealed that although the exchange rate which had been undervalued strengthened the international competition advantage of Chinese manufacturing to some extent,this additional advantage has disappeared since the reform of the RMB exchange in 2005

拟穴青蟹抗菌肽Crustin新变体的表达特性与抗菌功能

Crustins是一类较早发现并广泛分布在甲壳动物中且富含半胱氨酸的阳离子抗菌肽,能够参与抗细菌的免疫应答。从拟穴青蟹（Scylla paramamosain）中克隆获得Crustin基因,命名为SpCrus1a,其cDNA序列全长744 bp,开放阅读框编码113个氨基酸,成熟肽分子量10.03 kDa,等电点8.30。表达分析结果发现其转录本主要存在于鳃、卵巢、上皮组织中,脂多糖刺激后SpCrus1a会上调表达。体外合成SpCrus1a的第29～47位氨基酸进行抗菌活性实验发现,其对革兰氏阳性菌具有较强的抗菌活性,对被测的革兰氏阴性菌抗菌活性较弱或无抗菌活性。合成肽Sp Crus1a29-47能够在较短时间内杀死绝大多数的金黄色葡萄球菌,2 h内杀死全部的金黄色葡萄球菌。扫描电镜发现合成肽Sp Crus1a29-47可造成金黄色葡萄球菌表面结构崎岖不平,高浓度Sp Crus1a29-47造成细菌的大量死亡。上述结果表明,SpCrus1a是抗菌肽Crustins的新变体。国家自然科学基金(U205123,31172438);;厦门南方海洋研究中心科技项目(14PYY050SF03

A CAD/CAM method of individualized prosthesis base on CT reconstructing and robot grinding

人体髋关节髓腔具有个性化的S型形状,现有标准型的直柄股骨假体与病人髓腔形成三点接触,降低了股骨假体与病人髓腔的匹配度。利用猪腿骨的CT数据重建其; 髓腔的三维模型,将该三维模型作为假体设计模型导入机器人仿真软件进行编程和磨削仿真,并生成机器人磨削程序,利用机器人磨削程序将该假体模型复制到铜棒; 上。将加工好的假体与猪腿骨髓腔匹配,通过X射线图检测两者匹配情况,利用截取的骨断面测量假体与髓腔断面间的尺寸误差,验证个性化假体设计方法以及机器; 人磨削个性化假体的可行性。实验结果表明,假体与髓腔完成匹配后,90.84%匹配区域的假体与髓腔的间隙小于1mm。Human hip joint has a S-shaped canal , the existing standard straight; hip prosthesis matching with the femur cavity of the patient , will form; a three-point contact and reduce the fit precision between hip; prosthesis and femur cavity. The pig shank CT data is applied to; reconstruct the three-dimensional model of femur cavity to as a design; model of the prothesis, which is imported into robot simulation software; for programming and simulation of grinding , then,the prosthesis model; is copied on the copper bar by using robotic grinding technology. After; the prosthesis matched with femur cavity, the matching case is detected; by X-ray image , and the size error between the prosthesis and femur; cavity on the cross-sectional is measured to verify the method of; individualized prosthesis design and the feasibility of robot grinding; prosthesis. The experimental results show that 90.84% of the matching; area is less than 1mm when the femur cavity is matched with prosthesis

用神经网络方法进行DEA有效预测

本文提出用神经网络方法进行dEA有效预测。经实例验证本方法预测结果是dEA有效的，达到预期目的，说明它是一种新的、可行的dEA有效预测方法国家自然科学青

Numerical modeling and biomechanical analysis of the human mitral valve

目的建立人体心脏二尖瓣仿真模型,模拟二尖瓣闭合的工作过程,分析二尖瓣各组件应力分布,探讨二尖瓣瓣叶和腱索的相互作用,并探寻腱索受力大小与腱索粗细之间的相关性。方法构建二尖瓣几何模型,在此基础上定义模型单元类型、材料属性、接触、载荷及约束,建立有限元模型,计算模型的应力、速度和位移等参数。结果瓣膜上的应力分布不均匀,后瓣叶亚区之间的裂口位置所受应力最大;不考虑腱索连接至瓣叶时,瓣叶负载后外翻至心房一侧;考虑腱索连接至瓣叶时,前、后瓣叶关闭良好;各腱索受力不同,与前瓣叶相连的支持腱索受力最大,腱索受力大小与腱索粗细之间的线性相关系数为0.954。结论瓣叶中心和后瓣叶亚区之间的裂口两处应力较大区域是临床上二尖瓣裂的常发生部位;与瓣叶相连的腱索可在瓣叶负载时,施加牵拉力使瓣叶不致发生翻转,前、后瓣叶恰好关闭;解剖结构粗壮的腱索受力较大。Objective To establish a numerical model of human mitral valve and simulate its closing process,so as to analyze stress distributions on the valve apparatuses,study the interaction between leaflets of mitral valve and chordae tendineae,and explore the relationship between the force of chordae tendineae and their thickness.Methods A geometric model of human mitral valve was constructed.On the basis of the geometric model,the finite element model was established by defining the element type,material attributes,contacts,loads and constraints.Parameters such as stress,velocity and displacement were calculated after solving the model.Results The stress distribution on the valve was non-uniform.The clefts between the scallops in the posterior leaflet were always under the highest load.When no chordae tendineae were attached,the leaflets turned over to the side of the atrium.When chordea tendineae were attached,the anterior and posterior leaflet could close up successfully.Different chordae tendineae applied different forces to the valve.The strut chorea tendineae attached to the anterior leaflet applied highest force among all the chordea tendineae.The correlation coefficient between the thickness of chordae tendineae and their force was 0.954.Conclusions The two zones with higher stresses,namely the center of the leaflet and the clefts between the three scallops in the posterior leaflet,are also the positions of mitral valve cleft in clinic.Chordea tendineae can apply the pulling force on the leaflets while the mitral valve is under load,thus the leaflets won't turn over to the side of atrium and the valve can close up in time.Chordea tendineae with thicker anatomic structure always apply a higher force on the leaflets.国家自然科学基金资助项目(61102137); 福建省自然科学基金资助项目(2011J01366); 福建省创新医学科研基金(2009-CXB-59

基于图像测量技术的位移检测系统的设计

介绍一种基于图像测量技术的位移检测系统。系统由AdnS9500芯片上的COMS图像传感器采集被测物体表面图像信息,再经过内置的dSP处理器,对采集的图像进行匹配运算,输出数字位移信息,通过SPI通信传递给AVr单片机,由AVr单片机再处理并实时显示输出。为了提高COMS图像传感器与被测物体表面的距离,设置了外加激光源及光学透镜组件,使COMS图像传感器与被测物体表面的距离达到10~15CM,并且得到较高的精度。系统能够很好的实现非接触测量的目的