Theory of Warrant Pricing and an Empirical Study in China

权证重返中国证券市场已有一年多，国内权证市场无论是从产品数量还是成交金额来看，都已经颇具规模。国外对于权证定价的理论和实证研究一直是金融工程领域的一个重点方向。国内学术界和实务界对此也已经有所涉及，但由于样本所限，对于权证定价的实证研究目前还相对较少。国外成熟的权证定价模型在国内市场应用的效果如何？理论价格和实际价格是否存在显著差异？如果存在差异，导致这些差异产生的深层次原因是什么？本文拟通过实证分析回答这一系列问题。本文首先阐述了权证的基本知识以及影响权证价格的重要因素，并简要介绍了国内外权证市场发展的概况，随后展开了对权证定价理论的系统回顾，重点推导了三个权证理论定价模型，即Black-S...The return of warrants to China's securities market has been more than one year. The scale of the warrant market is big enough to deserve investors' attention referring to its product and trading amount.Theoretical and empirical analysis on warrants is one important research area in financial engineering. Researches in China is relatively limited, especially on the equity warrants pricing model in...学位：经济学硕士院系专业：经济学院财政金融系_金融工程学号：20044206

微信小程序赋予图书馆内部办公自动化的新可能性及实践重点——以厦门大学为例

在对微信小程序\"核心能力\"分析的基础上,以现实需求为导向,立体对比了三种主要技术路线,阐述了微信小程序在助推图书馆内部办公从\"自动化\"向\"移动化\"全面演进中的无限潜力。通过厦门大学具体实践中的几个应用场景,真实展现小程序在内部管理效率提升方面的优势,不仅是抛砖引玉,更是为了探讨实践中的开发思路和技术难点

高分子稀溶液的多尺度模型研究进展

高分子稀溶液的结构流变学模型是复杂流体多尺度模型的重要基础,其多年来的成就难掩其近线性、近平衡的局限和数学上的不足.介绍了研究高分子稀溶液微宏观(多尺度)模型的新进展,包括确定性和随机性2种形式的本构模型;综述了哑铃分子多尺度模型在数学分析和数值模拟进展以及微观模型的约化及封闭近似等研究工作

Residential Thermal Comfort in Western Agricultural and Pastoral Areas of Inner Mongolia in Shoulder Season

对内蒙古西部农牧区的81户住宅的过渡季和采暖期初的室内外环境参数进行了现场测试,并以主观问卷调查的方式对居民的着装情况和热感觉等做了统计。经过对; 调查测试的结果进行了统计分析,得出内蒙古西部农牧区的的过渡季和采暖期初的热中性温度为15.6 ℃和15.3 ℃,热期望温度为17.9; ℃和18.6 ℃, 80%居民可接受温度下限为13.1 ℃和14.3 ℃, 90%的热可接受温度范围为15.9 ~ 23.3 ℃和17.5 ~; 21.9 ℃。结果表明处于当地气候条件下和穿衣、适应措施的综合影响下,农牧区居民对偏冷环境的适应性较好。The indoor and outdoor environmental parameters of 81 houses in the; western agricultural and pastoral areas of Inner Mongolia in shoulder; season and heating periods were tested.Questionnaire about the clothing; and thermal sensation was sent to residents in the houses.By analyzing; the survey results,it was found that the acceptable neutral temperature; in shoulder season and heating periods is 15.6 ℃ and 15.5; ℃,respectively; the preferred temperature in shoulder season and heating; periods is 17.9 ℃ and 18.6 ℃,respectively; the lowest temperature that; 80% residents can accept in shoulder season and heating periods is 13.1; ℃ and 14.3 ℃, respectively; and the thermal comfort temperature at which; 90% residents feel satisfied in shoulder season and heating periods; ranges from 15.9 ℃ to 23.3 ℃ and from 17.5 ℃ to 21.9 ℃,respectively.The; results show that the residents in agricultural and pastoral areas are; better adaptable to the cold environment because of the combined; influence of local climate,dressing and adaptation measures.国家自然科学基金资助项目; 内蒙古自然科学基金资助项目; 内蒙古自然科学基金资助项目; 内蒙古研究生教育创新计划资助项

雷帕霉素衍生物对胰岛的毒性研究

目的探讨雷帕霉素及其衍生物依维莫司、地磷莫司、佐他莫司对胰岛的毒性作用。方法采用小鼠胰岛素瘤细胞(MIN6)作为体外研究胰岛细胞的对象,分别在含有依维莫司、地磷莫司、佐他莫司的培养基中孵育MIN6细胞48小时,通过Brdu检测细胞增殖、CCK8检测细胞活力、PI检测细胞周期、流式细胞术检测细胞凋亡以及ELISA检测细胞分泌胰岛素功能,观察3种雷帕霉素衍生物对MIN6细胞的影响。结果我们发现3种雷帕霉素衍生物均会对MIN6细胞的增殖和活力产生抑制作用。在细胞周期和凋亡实验中,与阴性对照组比较,3种衍生物对MIN6细胞的影响呈现抑制G1期向S期转变的趋势和促进细胞凋亡的趋势,但差异没有统计学意义。另外,3种衍生物与雷帕霉素一样,均可减少MIN6细胞分泌胰岛素,差异具有统计学意义。结论雷帕霉素及其衍生物依维莫司、地磷莫司、佐他莫司均对胰岛产生一定毒性。国家自然科学基金项目(31271038,81302546

Improved recursive constructing method of Reed-Muller codes

一般对rEEd-MullEr码的递归构造方法是对长码进行递归分解,直到不能再分解为止,即出现无冗余码和重复码时结束分解。提出了一种针对rEEd-MullEr码的递归构造改进方法,该改进方法比常规方法在递归分解的两端均提早一步结束对码字的分解,即出现双正交码和单奇偶校验码时结束分解,并对单奇偶校验码采用系统形式。对于双正交码,利用快速哈达玛变换实现快速的最大似然译码;对于单奇偶校验码,利用该码系统形式的特殊构造实现了简化的最大似然译码算法。对改进的译码算法的复杂度进行了详细的分析,并与其他已有的算法进行对比,结果表明,该算法具有更低的复杂度,尤其对于高码率的码型。此外,性能仿真结果表明,该译码算法具有更低的误码率。Reed-Muller code can be recursively decomposed and the decomposition is conventionally ended at repetition codes and non-redundancy codes,where repetition codes and non-redundancy codes cannot be decomposed further.In this paper,we propose a modified recursive structure of Reed-Muller code in which the recursive decompositions are ended one step earlier,i.e.decompositions are ended at dual-orthogonal codes or single parity check codes.Moreover,for single parity check code,the systematic form is used.In the decoding algorithm,we use fast Hadamard transform to simplify the maximum likelihood decoding of dual-orthogonal code.We also use simplified maximum likelihood decoder to decode the systematic single parity check code through its special structure.We analyze the decoding complexity of the proposed decoding algorithm and compare the complexity with two other existing algorithms.The analysis shows that the proposed algorithm has lower complexity,especially for the high-rate codes.In addition,the simulation results indicate that the proposed algorithm decreases the bit-error rate slightly.福建省自然科学基金(2013J01256); 国家自然科学基金(61271241)~

Study on the Interaction of Gliotoxin with BSA

应用荧光、圆二色和紫外—可见吸收等波谱法研究胶毒素与牛血清白蛋白(bSA)的相互作用。荧光光谱实验结果表明胶毒素主要靠疏水作用与bSA结合,而对其内源荧光产生猝灭作用,其淬灭方式为静态猝灭,胶毒素与bSA的结合常数为7.2x103l/MOl。圆二色光谱检测发现,随着胶毒素浓度的增加,bSA的α-螺旋数量也增加,当胶毒素浓度为bSA浓度的100倍时,bSA的α-螺旋增加40.1%,表明胶毒素与bSA的结合改变了bSA的空间构象。The interaction between Gliotoxin and bovine serum albumin (BSA) was studied by the fluo-rescence, Circular Dichroism (CD) and ultraviolet visible (UV-Vis) techniques.The fluorescent experiment showed that the intrinsic fluorescence of BSA was quenched by the binding of gliotoxin in a static quenching procedure, with an association constant of 7.2×103 L/mol and in hydropobic forces.And the CD spectrum revealed that gliotoxin effected the conformation of BSA by increased the mass of α-helix.国家863计划项目(No.2006AA09Z410

聚碳硅烷熔体的稳态流变性能

采用自制装置对聚碳硅烷(PCS)熔体进行预处理。通过预处理获得三种不同分子量的PCS,并对其进行物理化学和稳态流变性能测试。结果表明,预处理后的PCS其数均分子量为1000 g/mol~1400 g/mol,属低聚物。在温度范围240℃~260℃和剪切速率范围0.001 s-1~10 s-1内有明显的剪切变稀现象。在测试的温度范围内,剪切变稀区的非牛顿指数随温度升高先减小后增大。预处理后的PCS粘流活化能为120 kJ/mol~180 kJ/mol,比一般高聚物的高得多

TT病毒与肝炎关系的临床流行病学研究

目的　对闽南地区各种肝炎患者、健康体检者、义务献血员和肝癌患者共480例从临床流行病学角度探讨TT病毒(TTV)的致病性及其与各种肝炎的关系。方法　采用巢式PCR检测血清TTVDNA、ELISA检测血清抗HAVIgM、HBsAg、抗HBcIgM、抗HCVIgG、抗HEVIgG,用EPIINFO60软件进行统计分析。结果　480名研究对象中TTVDNA的总检出率为23.96%。各种肝炎患者的TTV总阳性率为2394%,肝癌患者的TTV阳性率为2069%,而健康者的TTV阳性率为2484%,义务献血员的阳性率为3000%,均未见明显差别。从临床类型看,急性肝炎、慢性肝炎和重症肝炎的TTV阳性率都在25%左右;从病原类型看,非甲～戊型肝炎的TTV阳性率为2619%,并未见与相应健康者的2523%阳性率的差别;除HCV由于感染率太低而无法分析外,HAV、HBV、HEV阳性肝炎患者间TTV的阳性率分别为2000%、2314%、2179%,未见TTV与这些已知肝炎病毒的明显相关。对一个时期内的全部135例住院肝炎患者及153名健康者进行肝炎病原分析,HAV、HBV、HEV在肝炎患者中的阳性率都要明显高于健康人(P=00142),而TTV在肝炎患者中的阳性率与健康人没有明显差别(P=06021);对病毒的单独致病性进行分析,HAV、HBV、HEV在非重叠感染的肝炎患者中的阳性率都要明显高于健康人(P=00037),而TTV在非甲～戊型肝炎患者中的

Effect of experimental infection with Vibrio alginolyticus on immune parameters of Pseudosciaena crocea

为了解大黄鱼在抗溶藻弧菌感染时免疫功能的变化规律,将160尾健康大黄鱼分为感染组和对照组,通过腹腔分别注射0.2mL浓度为2×107CFU.mL-1的溶藻弧菌和灭菌生理盐水,在注射0,1,3,7,11,15,19d后从两组各取6尾大黄鱼,尾静脉取血,进行外周血的血相、NBT阳性细胞数、血清抗菌活力、抗体效价等免疫学指标的测定。结果显示:在人工感染的初期,感染组大黄鱼外周血的红细胞、白细胞、淋巴细胞和NBT阳性细胞的数量及血清抗菌活力等指标均较对照组有显著提高;在注射后1d外周血粒细胞的数量显著低于对照组;抗体效价在7d开始增加,15d达到峰值,且用间接ELISA和试管凝集两种方法所得结果具有非常高的同步性。结果表明:在感染溶藻弧菌后,大黄鱼能通过红细胞和白细胞增殖、释放抗菌物质、产生特异性抗体等方式提高其对溶藻弧菌的免疫力;在感染的早期阶段非特异性免疫因子起主要作用,在感染后期阶段特异性免疫因子起重要作用;NBT阳性细胞数可以作为细菌感染的指标。To investigate the effect of experimental infection with Vibrio alginolyticus on immune parameters of Pseudosciaena crocea,one hundred and sixty healthy fish were categorized into infected and control groups.Each fish in infected group was injected intraperitoneally with 0.2 mL of bacteria suspension with a concentration of 2×107 CFU·mL-1,while each fish in control group was injected i.p.with 0.2 mL of sterile saline solution. P.crocea in both groups were sacrificed at 0,1,3,7,11,15 and 19 d post-injection to evaluate immune parameters such as haematocyte counting,NBT-positive cells,serum antibacterial activity,and serum antibody titer.The results showed that: experimental infection with V.alginolyticus would increase the numbers of erythrocytes,leucocytes,lymphocytes in peripheral blood as well as peripheral serum antibacterial activity and antibody titer of P.crocea,and reduce peripheral blood granulocytes number significantly,in comparison with those in control group.These results suggested that after infected by V.alginolyticus,P.crocea would enhance its resistance to the invaded bacteria by means such as erythrocyte and leucocyte proliferating,antibacterial substance excreting,antibodies synthesizing;non-specific immune factors including antibacterial substance in peripheral blood played an important role at the initial stages of infection,and then specific immune factors such as antibody played an important role at the later stages;the number of NBT positive cell was a good indicator of bacterial infection.国家“八六三”高新技术发展计划(2002AA639600);; 福建省自然科学基金项目(B0410022);; 福建省青年创新基金项目(2002J037