464 research outputs found
Design and Implementation of Insurance Company Financial Management System Based on Web Technology
随着互联网和信息时代的发展,保险公司已经成为一个社会不可缺少的一种成分,而保险公司的财务管理系统还相对落后,保险公司还采用一般的财务管理系统。这种财务管理系统是大多数企业所用的财务管理系统,规模比较小,处理的数据量也有限。对保险公司而言,他们在社会的地位是金融类企业。财务处理的是大量与金钱有关的信息,这种小型的财务管理系统已经不适应保险公司的应用。以前的财务管理系统是基于C/S模型,这种模型有很多缺点,不能实时更新数据,处理的数据是基于局域网的模型。系统不能进行财务风险预警,财务分析时,信息量也不够等等。 本文基于上面提出的问题,提出一种解决方法,就是基于Web的保险公司财务管理系统,采用新...With the development of the Internet and the information age, the insurance company has become an indispensable a component of society, and the insurance company's financial management system is relatively backward, the insurance company also uses general financial management system. This financial management system is a financial management system used by most companies, the relatively small size...学位:工程硕士院系专业:软件学院_工程硕士(软件工程)学号:X201323063
Large-eddy simulation of flows past a flapping airfoil using immersed boundary method
The numerical simulation of flows past flapping foils at moderate Reynolds numbers presents two challenges to computational fluid dynamics: turbulent flows and moving boundaries. The direct forcing immersed boundary (IB) method has been developed to simulate laminar flows. However, its performance in simulating turbulent flows and transitional flows with moving boundaries has not been fully evaluated. In the present work, we use the IB method to simulate fully developed turbulent channel flows and transitional flows past a stationary/plunging SD7003 airfoil. To suppress the non-physical force oscillations in the plunging case, we use the smoothed discrete delta function for interpolation in the IB method. The results of the present work demonstrate that the IB method can be used to simulate turbulent flows and transitional flows with moving boundaries
The Impact of Cooperative and Competitive Goals Interdependence with Supplier on Firm Innovation and NPD Performance
基于合作与竞争理论探讨企业与供应商之间目标关联影响企业创新和新产品开发绩效的作用机制。运用结构方程模型对233家企业数据进行分析,结果表明:合作目标通过推动供应商整合促进探索式创新和利用式创新,进而增强核心能力并最终提高新产品开发绩效;相反,竞争目标通过抑制供应商整合阻碍探索式创新和利用式创新,进而减弱核心能力并最终降低新产品开发绩效。Based on the theory of cooperation and competition,this paper tests the path effects of cooperative and competitive goals on firm innovation and new product development( NPD) performance through supplier integration and core competence.And then,it analyzes the data of 233 firms by structural equation model. Results show that supplier integration is strengthened by cooperative goals rather than competitive goals. Supplier integration has a positive impact on exploratory innovation and exploitative innovation which do benefit to core competency. These relationships in turn result in NPD performance.国家自然科学基金项目(71572164;71463049);; 教育部人文社会科学规划基金项目(14XJJA630001
The mechanisms of intensive exercise and Rheumpalmatum L. for nonalcoholic fatty liver disease
第一部分非酒精性脂肪肝(NAFLD),在欧美和中国已广泛流行。运动被认为是NAFLD的有效疗法,多个临床研究证实运动对减肥、减轻NAFLD肝内的TG含量有确切的疗效。厦门糖尿病研究所所做的强化运动治疗NAFLD的临床研究也显示,强化运动可以减轻患者的体重、降低肝内的TG。但运动治疗脂肪肝的机制还不太明了,有待于揭示。我们采用了基于核磁共振的代谢组学检测了运动6个月后患者尿样的代谢组,结合多元数据分析发现:经过6个月的强化运动后患者尿液中与肠道菌群代谢相关的代谢物,如TMAO,hippurate发生了的变化,提示强化运动治疗脂肪肝的机制与运动后肠道菌群的改变有关。 第二部分尽管NAFLD在世界...Abstracts Nonalcoholic fatty liver disease (NAFLD) has been widely popular in Europe, United States and China. Exercise is considered to be an effective for NAFLD. Several clinical studies showed that exercise decreased body weight, reduced the liver TG content in NAFLD. The clinical study performed by Xiamen diabetes institute also showed that intensive exercise reduced body weight and TG conten...学位:博士后院系专业:物理与机电工程学院_无线电物理学号:201117004
Research on Underwater Acoustic Communication System Based on Chirp Carrier
浅海水声信道非常复杂,是一个时间-空间-频率迅速变化的信道,信道参数每时每刻都有很大的不同,通信条件非常恶劣。但是随着全球各国海洋资源开发的迫切需求,对水声通信系统的要求不断提高,如何实现有效和稳定可靠的信息传输是亟需解决的问题。因此构建一个稳定并且可靠的水下声通信系统对于民用领域和军用领域均具有非常重要和迫切的实际意义。 本文首先研究了基于线性调频信号扩频的直接调制技术,阐述了调制解调原理,分析理论误码性能,并在高斯白噪声和基于Bellhop的海洋信道模型下验证了系统性能。由于这个系统对抗多径能力不强,因此研究了抗多径技术:时间反转镜。在虚拟时间反转镜的研究中提出了两种信道估计算法,首先在...Shallow water acoustic channel is a very complicated time - space - frequency rapidly changing channel, the channel parameters are very different in every moment, very poor communication conditions. But with the urgent needs of development of marine resources around the world, the requirements for underwater acoustic communication system continue to increase, how to achieve efficient and reliable ...学位:工学硕士院系专业:信息科学与技术学院_通信与信息系统学号:2332012115298
中国上市公司职场激励动机研究——基于股权激励的实证分析
股权激励作为职场激励的方式之一,在国外已经得到了广泛的运用。我国上市公司从2006年开始实施规范的股权激励,至2012年底已经有375家公司先后推出了股权激励计划。对于上市公司职场激励动机是什么,以往的研究尚存在争议。文章以股权激励为例,从制度背景、企业性质等方面对职场激励的动机进行了分析。教育部国家建设高水平大学公派研究生项目(201206310087
国医大师薛伯寿教授治疗小儿发热法浅析
小儿外感热病,是儿科临床常见病,中医药治疗具有独特的优势。薛伯寿教授师从杰出中医学家蒲辅周先生,继承创新其辨治小儿外感热病的原则,临证60载,拓宽思路,启迪临床,根据小儿脏腑特点、病因病机以及临床表现,运用解表透邪、辛透和解、因势利导、引邪外出等方法,灵活辨证,加减用药,临床效果卓著,屡收一剂热退,三剂病已之功。国家中医药管理局国医大师薛伯寿工作室项目;国家中医药管理局第三批全国优秀中医临床人才研究项
推动消费结构优化升级的探讨——基于消费行为异质性的视角
新常态下,消费成为拉动经济增长的新动力,凸显居民消费对经济发展的作用具有重大战略意义,而进一步推动消费结构的优化升级成为关键。首先分析了2000年至2017年中国城乡居民消费结构的变化趋势,找出当前我国居民消费结构存在的问题。其次,以消费行为异质性的视角,分析了收入阶层异质性、区域异质性和年龄结构异质性对我国居民消费结构的影响。最后,就如何推动我国城乡居民消费结构的优化升级提出了相应的对策和建议。马克思主义消费心理学理论研究创新团队(20720181104
光催化原位氢化有机物的研究
光催化原位氢化有机物的研究庄启星,杨涛峰(厦门大学化学系,361005厦门大学固体表面物理化学国家重点实验室)有机物的多相催化加氢首先需要将分子氢活化使其均裂或异裂,反应一般要在适当温度、足够H_2压、金属或金属负载催化剂存在下进行。利用光催化反应活...国家自然科学基金;厦门大学固体表面物理化学国家重点实验室资
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