Research on H Hotel Design Project Schedule Management of Z Company

酒店工程的设计对后续的采购、施工等环节起着制约、带动和协调的作用；同时，酒店设计项目又受众多不确定性因素的影响，因此设计项目的进度管理成为整个工程建设进度保障最关键环节。本文的研究目标是运用项目进度管理理论方法和工具，建立合适的酒店设计项目进度计划的制定和进度控制的框架，为以后Z公司同类工期紧、任务多的大型项目设计的进度管理提供借鉴经验。 本文以H酒店的设计项目为例，论文综合运用关键路径法、计划评审技术、关键链管理方法的优点，并与H酒店的特点相结合，以此来研究酒店设计项目的进度管理。研究内容包括运用关键路径法即网络计划图来确定各活动的先后顺序，运用计划评审技术来计算活动持续时间、运用关键链管...Hotel engineering design has significant constraints on its subsequent activities, such as procurement and construction, but provides mobilization and coordination effects as well. However,the design for a hotel projects affected by many uncertain factors, and the design schedule management become the most key linkage to ensure the project construction. The aim of this dissertation is to develop a...学位：工程硕士院系专业：管理学院_工程硕士(项目管理)学号：X201415302

和谐社会目标下理想收入分配格局初探

一、理想社会收入分配格局研究现代社会的发展表明,中等收入阶层越大,对社会的和谐、稳定、健康发展越有利。中等收入是指社会成员收入处于中等水平。笔者认为,中等收入水平是个相对数值,是针对整个社会的总体收入水平而言的。中等收入水平应该是一个区间

细胞外囊泡参与调控外源因素诱导的肝毒性损伤的研究进展

肝脏是机体代谢外源因素的主要功能性器官，其具有独特的血窦结构和丰富的细胞组成，而细胞的功能改变是造成肝毒性损伤的主要原因。细胞外囊泡（extracellular vesicles, EVs）是由脂质双分子层所形成的纳米级球形囊泡，源自于各细胞亚群，用于负载特定的内容物，并可作为载体介导相邻或远处细胞间的信息交流。该文综述了外源因素暴露下EVs介导肝毒性损伤进程中各细胞的信息传递，并探讨靶向干预EVs的具体途径，为预防和控制肝毒性损伤提供线索以及潜在的应用价值。国家重点研发计划(2017YFA0205201)国家自然科学基金(81422023,51273165,U1705281,U1505221)教育部新世纪优秀人才支持计划(ncet-13-0502

Preliminary studies on the scale insect pest of Pseudaulacaspis cockerelli in mangrove

首次发现陆生考氏白盾蚧严重为害潮间带红树植物秋茄。通过野外定位调查和室内饲养观察,研究其危害特征、种群分布、生殖力和自然死亡率。结果表明,考氏白盾蚧主要分布在秋茄叶片主脉两侧,叶背虫口数显著多于叶面(P<0.01),单叶虫口数多为1-50头,平均25.65头,最高418头;秋茄植株不同垂直空间层次的虫口密度无显著差异,但聚集度随垂直空间下降而增大;种群平均产卵量每雌52.22粒,自然死亡率69.35%,寄生蜂寄生是最主要的死亡因子,寄生率达34.23%;与几种陆生寄主植物相比,红树林考氏白盾蚧的种群密度、生殖力、叶最高虫口数均较高,该虫对潮间带生境及寄主秋茄具有适应性。The scale insect,Pseudaulacaspis cockerelli is an important pest for many kinds of plants for a long time in the land.In 2006,it was found firstly attacking the mangrove plant of Kandelia obovata in the tideland in Xiamen City,and had led to badly damages.Based on the field surveys and lab feeding,this paper dealed with its damage characteristic,population distribution,fecundity and natural mortality etc.The results showed that the scale insect mainly distributed on both sides of the midvien of K.obovata leaves,but the individual on the abaxial surface was significantly more than those on the adaxial surface(P<0.01).The individual number of one leaf mostly fluctuated from 1 to 50,and the average and tiptop numbers were 25.65 and 418,respectively.The pest population density had no remarkable discrepancies among different vertical spatial layer of K.obovata,however,its aggregating degree increased with falling of the layer.The population had an avarage fecundity of 52.22 each female and a high natural mortality of 69.53%.The main natural death factor were two species of parasites(Hymenoptera: Chalcididae),and their total parasitical ratio reached 34.23%.In the mass,the pest population density,fecundity and tiptop individual number of a leaf in the mongrove were all more than those in serval other host plants on land,which implied that this scale insect had a high adaptability to the habitat of tideland and the plant of K.obovata

Therapeutic effects comparison between platelet-rich plasma and sodium hyaluronate intra-articular injection in treatment of knee osteoarthritis

目的关节腔内注射自体富血小板血浆（PRP）与透明质酸钠（SH）,观察并比较其疗效。方法于2012年2月至12月,漳州市解放军第175医院骨科收治的81例Kellgren-Lawrence（KL）分级标准为Ⅱ、Ⅲ级膝关节骨关节炎的患者,年龄48～60岁,平均（52.6±3.6）岁;男性27例,女性53例;左膝38例,右膝43例。K-L分级标准,Ⅱ级47例,Ⅲ级34例,按就诊顺序序贯随机平行分为SH组（40例）和PRP组（41例）,分别采用SH和PRP关节腔内注射进行治疗。治疗前和治疗后3、6、9、12个月对患者进行随访并进行美国西部Ontario与Mc Master大学骨关节炎指数（WOMAC）评分评估,两组间各时间点WOMAC评分比较采用t检验,两组内各时间点WOMAC评分比较采用重复测量方差分析;分别于治疗前和治疗后12个月进行膝关节磁共振检查,评价关节腔内积液的吸收情况。结果治疗前及治疗后3个月PRP组WOMAC评分[（48.42±4.95）分,（25.38±5.12）分]和SH组[（47.17±5.12）分,（25.17±5.09）分]比较,t值分别为-0.625和0.413,差异无统计学意义（P均〉0.05）;治疗后6、9、12个月PRP组WOMAC评分[（21.44±4.73）分,（20.54±4.46）分,（16.53±7.35）分]和SH组[（25.87±5.16）分,（27.22±4.21）分,（29.63±8.21）分]比较,PRP组低于SH组,t值分别为-2.765、-3.447和-4.657,差异具有统计学意义（P均〈0.05）,治疗后12个月复查磁共振,可见PRP组的关节积液吸收例数高于SH组,差异有统计学意义（P〈0.05）。结论膝关节腔内注射自体PRP,临床效果优于透明质酸钠,中长期疗效好。Objective To compare the efficacy of platelet rich plasma （PRP） and sodium hyaluronate （SH） intra-articular injection in the patients with knee osteoarthritis of grade Ⅱand Ⅲ. Methods A total of 81 patients with knee osteoarthritis of grade Ⅱ and Ⅲ （ Kellgren-Lawrence standard） were randomly assigned to the PRP and SH group. All 81 patients were treated in the 175th hospital of PLA, Zhangzhon, with the average age of （52.6 ± 3.6） years. There were 27 males and 53 females. Forty cases in SH group and 41 cases in PRP group had got the complete follow-up. Both the two groups adopted 4 ml of 5% lidocaine for intra-articular injection. All the patients were prospectively evaluated before the treatment and at the 34 , 6th , 9th and 12th month after the treatment by the Western Ontario and McMaster Universities （WOMAC） osteoarthritis index. The swelling subsiding knee was observed. Between the two groups WOMAC scores were compared using t test at each time point, within the groups the scores were compared by repeated measures analysis of variance. The absorption of accumulated fluid in the joint cavity was observed and compared by MRI before and 12 months after the treatment. Results No serious adverse event was detected in the two groups. According to the follow-up evaluations, both the groups presented clinical improvements. The comparison between the two groups showed no statistically significant difference before therapy and three months after the treatment （ t =- 0. 625, 0. 413, P 〉 0. 05 ）. Six months, nine months and 12 months after the treatment, WOMAC score in the PRP group[ （21.44 ±4. 73）, （20. 54 ± 4. 46） ,（16. 53 ± 7. 35 ） pointsl were lower than the SH group[（25.87 ±5.16）, （27.22 ±4.21）, （29. 63 ± 8.21 ） points] ; the difference was statistically signifieant（ t = - 2. 765, - 3. 447, - 4. 657, P 〈 0. 05 ）. Conclusion PRP intra-artieular injection in the treatment of knee osteoarthritis of gradeⅡ and Ⅲ may be more suitable compared to南京军区医学科技创新重点课题项目（15ZD027

Effect of salinity on genetic differentiation of Kandelia candel population

探讨盐分选择对秋茄种群遗传变异与遗传分化的影响。结果表明 ,海沧、金山与浮宫 3个亚种群的遗传变异性较小 ,期望杂合度 (H e)分别为 0 .30 1、0 .2 5 3、0 .30 4 ,遗传一致度较高 ,为 0 .9778～ 0 .992 0 ,但亚种群间遗传分化程度很小 (0 .0 2 30 ) ,表明仅有 2 .3%的分化来自亚种群间 ,而 97.7%来自亚种群内部 ,说明盐分选择对秋茄种群遗传分化影响不大 ,这种遗传结构的维持机制是秋茄亚种群之间强大的基因流 (N m=10 .6 2 )。 【英文摘要】 Kandelia candel is a species of mangrove which are woody plant communities growing in tropical and subtropical areas along seashores and widely distributed in Guangdong, Guangxi, Hainan, Fujian and Taiwan provinces of China. This study investigates the genetic structure of three Kandelia candel subpopulations growing on different soil salinity along Jiulong River of the Fujian province. The three Kandelia candel subpopulations are Haicang, Jinshan and Fugong named after their location, and the soil salinity...国家自然科学基金资助项目 (3 9670 13 5 )~

Mangrove flora and associations of Leizhou Peninsula

作者简介: 韩维栋( 1963-) , 男, 江西会昌人, 博士, 副教授, 从事生态学与植物分类学教学与科研工作。[中文文摘]综述了前人对雷州半岛的红树林的研究;根据作者的调查研究报道了雷州半岛的红树林面积、树种组成、群落类型与结构。[英文文摘]This article summarized former mangrove researches in Leizhou Peninsula and descr ibed the mangrove species, associations and their structure in Leizhou Peninsula based on the author's invest igation.中荷合作雷州半岛红树林综合管理和海岸保护项目资助(IMMCP 01

半导体激光器温度控制研究

温度对半导体激光器的特性有很大的影响.为了使半导体激光器输出功率稳定,必须对其温度进行高精度的控制.利用PID控制网络设计了温控系统,控制精度达到±0.01℃,与无PID控制网络相比,极大的提高了系统的瞬态特性,并且试验发现采用带有温控系统的半导体激光器的输出功率稳定性比没有温控系统的输出功率得到显著改善

Method of Improving FEM Dynamic Property

采样定理告诉人们进行离散逼近离散尺寸的极限是问题中所涉及最高频率波长的1/2.1/2波长是一理想值,在目前的有限元分析中,通常保证精度的空间离散尺寸远小于这一理想值.文中分析了这一现象的可能原因,同时给出了一种基于有限元的在一定条件下能够改进空间离散效率的动力模拟方