115 research outputs found

    Preparation and Characterization of Functional Coating Materials on Glass Surface

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    汽车玻璃,做为汽车的主要安全构件,既要求安全性,又要求多功能化和总成化。近年,汽车玻璃主要功能化方向有:隔热、防雾、憎水、抬头显示等。其中,隔热功能化可分为:热吸收和热反射两种方式。由于被吸收的光存在提高屏蔽物温度和二次辐射的作用,形成一个新的热源,目前热反射材料逐渐成为隔热功能化材料研究的热点。另外,防雾功能化方面,汽车前档玻璃可利用空调、后档玻璃可利用电加热进行防雾,但边窗玻璃的防雾,目前尚未解决,吸水防雾材料是防雾功能化材料研究的热点。本文,针对汽车玻璃表面功能性涂层材料为应用背景,研究两种材料的制备及表征;①应用于隔热功能化的近红外高反射纳米粉体;②应用于防雾功能化的吸水防雾微米膜层。...As a keysafety component, vehicle glass is required to be multi-functional as well as safety-ensuring. In recent years, heat insulation, antifogging, hydrophobicity, and head-up display (HUD) have become the main directions of automotive glass’s functionalization. Heat insulation can be achieved through both absorption and reflection. Light absorption, however, increases the temperature of shelter...学位:工程硕士院系专业:材料学院_工程硕士(材料工程)学号:2072014115010

    Research on the Developing Model of Comprehensive Holiday Site on KaiKou Golf Course

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    高尔夫是一项带着精英色彩的体育运动,它健康、时尚并兼有运动、休闲、娱乐、社交等多种功能,其英文名GOLF恰巧表明了这一运动的本质特征……凯歌曾经是辉煌和骄傲的,让人充满着憧憬和梦想。但凯歌十年来由盛而衰的惨淡经营却让人扼腕叹息、发人深思。这其中有其自身的原因,亦有行业发展和市场竞争的因素。凯歌自开发建设到运营至今跨度达十五年之久,这“一路风雨,一路凯歌”的历史从某种意义上是中国高尔夫行业的一个缩影,有着相当的代表性。因此,对凯歌高尔夫球场过去和现在的研究与思考,对于凯歌高尔夫球场将来战略发展的研究与探讨,对于仅有二十年发展历史还处在尝试探索阶段的中国高尔夫行业有着相当的现实意义。本文借鉴企业战...Golf is a sport with the color of essence. It’s healthy, fashionable, beneficial and has recreation, socialization, travel etc functions. Its English name happens to show the genius character….. KaiKou was splendid and pride, full of longing and dreams. But after 10 years’ gloomy operation, we have to think deeply on the experience from prosperousness to wane. The reasons are not only internal fac...学位:工商管理硕士院系专业:管理学院工商管理教育中心_工商管理硕士(MBA)学号:20001506

    干扰素防治草鱼出血病的效果初探

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    对人工诱导的鲫鱼干扰素防治草鱼出血病的效果进行了初步探讨。结果表明 ,人工诱导的鲫鱼干扰素确能有效防治草鱼出血病 ,腹腔注射和药浴浸泡两种途径均有一定效果。在病毒感染前使用干扰素处理的效果好于在病毒感染后使用干扰素处理。多次使用干扰素处理的效果好于一次性处

    Building Chinese- English bilingual Corpus of News Field and Resear ch on Sentence Alignment

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    摘要: 双语对齐的平行语料库在机器翻译和自然语言处理领域中扮演着非常重要的角色, 它的研究和制作具有重要的理论意义和实用价值, 双语语料的建设十分必要, 其中双语对齐是最基本的环节。文章首先简要介绍了语料库的建设情况, 然后结合主流的句子对齐方法提出并实现了基于词典和语言学信息的英汉双语句子对齐。英文摘要:Abstr act: Bilingual corpus plays a very important part in machine translation and natural language process field, Building and research on it both have theoretic significance and practical value. Therefore, it' s necessary to build a large- scale bilingual corpus. Bilingual Alignment is the basic connection. This paper firstly gives a brief discussion on the construction of the corpus, secondly discuss the main ways of sentence alignment, and finally pose another aligning method base on lexical and language information.基本项目:福建省自然科学基金项目( 2006J0043

    Annual change of outdoor seawater cultivation of dunaliella for biomass energy

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    作者简介:陈昱(1982-),男,硕士,主要从事生物质能源研究。E-mail:[email protected][中文文摘]将涨潮海水浓缩后以次氯酸钠进行消毒,添加少许氮、磷等无机盐,在室外周年养殖杜氏藻及其多个突变株,研究其在自然条件下生物量的产出和细胞内脂类的积累。结果表明,在养殖过程中,培养液的盐度、pH值以及细菌含量的变化对杜氏藻的生长没有显著影响。通过培养,不同株系杜氏藻都可以获得较高的生物量和脂类产出,特别是耐高温突变株、高脂突变株可以适应夏天室外的高温、高盐等恶劣环境,普通株在冬天尚能生长,不同特性的藻株的轮换养殖可以保证养殖场周年养殖。海水养殖有望成为一种大规模培养杜氏藻的既简单又经济的发展模式。文章为进一步开发利用杜氏藻生物质能源奠定了一定的基础。[英文文摘]Dunaliella bardawil and several mutants were cultured outdoor in concentrated seawater treated by Javel water with the addition of few nitrate and phosphate,and the biomass and lipid accumulation of Dunaliella were assessed.Dunaliella species grew well during the cultivation period,despite of the change of salinity,pH and bacteria content in seawater.High lipid and biomass productivity of Dunaliella species was obtained in our study.High temperature tolerance mutant and high lipid content mutant grew well under high temperature and high salinity of seawater in summer, while normal strain grew well in winter. Alternate cultivation of different Dunaliella strain should be carried out in all-year outdoor cultivation. It would be a simple, economic batch mode for large-scale Dunaliella cultivation using concentrated seawater, and it would contribute to further using of Dunaliella for biomass energy.福建省科技重点项目(2009N0052); 福建省重大专项前期研究项目(2005YZ1022

    Study on species diversity of macrobenthos in Daya Bay,South China Sea

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    利用2004年3月、5月、9月和12月的大型底栖动物定量采样数据,对大亚湾大型底栖动物的物种多样性进行研究。结果表明,因人类活动影响的加剧,目前大型底栖动物多样性明显低于历史水平。2004年大亚湾海域内共出现79种(类)大型底栖动物,全海域均匀度(J)、丰富度(D)和Shannon-Wiener指数(H′)均值分别为1.17、0.74和2.06。各多样性指数的季节变化较小,不存在显著差异(P>0.05)。多样性水平以冬季0.05).The level of species diversity showed the trend of winter < spring < summer < autumn.It has been found that the distinct change of dry and wet season,the species diversity in wet season was higher than those in dry season.The species diversity of macrobenthos in outer Bay was the highest among other areas.The dominant species of Veremolpa micra and Timoclea scabra were so abundant that the species diversity of macrobenthos in center Bay and inner Bay were low.The seasonal change of the species diversity of macrobenthos in center Bay and inner Bay was caused by the change of the abundance of V.micra and T.scabra.Then the abundance of V.micra and T.scabra fluctuated with the water temperature directly.科技部社会公益研究专项资金项目(2005DIB3J020);; 广东省重大科技兴海项目(A200099E01);; 中央级公益性科研院所基本科研业务费专项资金(中国水产科学研究院南海水产研究所)资助项目(2007ZD08);; 农业部海洋与河口渔业重点开放实验室基金项目(开-2-04-15);; 农业部渔业生态环境重点开放实验室开放基金项目(2004-22005-2

    Macrobenthic community structure in Daya Bay,South China Sea

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    利用2004年3月、5月、9月和12月的大型底栖动物定量采样数据,对大亚湾大型底栖动物的群落结构进行研究。结果表明,大亚湾大型底栖动物大致可分为3个群落,分别分布于湾顶及湾中大部分海域、湾中部和湾口海域,湾中部海域群落的变化较为显著。大型底栖动物整体群落结构的季节变化总体较小,但雨季对大型底栖动物群落的影响较大,存在较明显的干湿季差异。大亚湾海域生态环境受到明显的扰动,处于扰动状态中的大型底栖动物群落稳定性较差;湾顶和湾中大部分海域内的群落Ⅰ,为大亚湾的主体群落,以软体动物为主,种类组成单一、季节变化小,以小鳞帘蛤VErEMOlPA MICrA和粗帝汶蛤TIMOClEASCAbrA为特征种。该群落的稳定性最差,处于较强烈的扰动之中;稳定分布于湾口的群落Ⅲ稳定性最好,未受到扰动,以多毛类为主,种类组成较为复杂、变化较大;湾中部海域大型底栖动物群落结构变化较为复杂,主要变化区域为马鞭州附近海域。该群落系经强烈的人为扰动后,经次生演替而形成的新群落,其种类组成的季节变化非常显著,各季的种类几乎完全不同,群落的独立性和抗干扰能力均较弱;与1980'S相比,大亚湾大部分区域内大型底栖动物基本保持了原有的群落,但群落稳定性大幅下降,群落的分布范围和种类组成发生较大程度的改变,主体群落组成呈明显的简单化趋势。在人类活动影响下,湾内同一区域内群落完全演替、湾中部海域出现新的群落。Based on macrobenthos samples collected from 4 survey cruises at 40 research stations in March,May,Sept.and Dec.2004 in Daya Bay,South China Sea,the community structure of macrobenthos was studied.The result showed that macrobenthos community in Daya Bay can be divided into three groups from the inner bay to the main area of the central bay,the central bay and outer bay.The effect of changes between wet and dry seasons on the macrobenthos community structure in Daya Bay was relatively stronger,although seasonal effect on the overall community structure was small.Daya Bay was shown to be ecologically disturbed and the stability of macrobenthic community was weak.Specifically,the inner bay and main area of the central bay was strongly disturbed and was dominated by Group I community that was characterized as simple low stability and dominated by molluscs.Dominant species were Veremolpa micra and Timoclea scabra.The outer bay received little disturbance and the community was most stable.The community belongs to Group Ⅲ that was dominated by polychaete and characterized as complicated and variable.The community change in the central bay was more complicated,concentrated mainly around Maiban Zhou.Its community structure was strongly affected by human disturbance and largely different from other community groups.Species composition of the group was variable which differed largely between seasons.The stability and resilience of the community is low.The current macrobenthic community in Daya Bay is different from the 1980s' state with largely different species composition,reduced community stability and complexity.Overall,under human disturbance,the macrobenthos community in Daya Bay,and particularly in the central bay,changed to a totally different structure.中央级公益性科研院所专项基金资助项目(2007ZD08;2007ST08);国家科技部公益资助项目(2005DIB3J020);广东省重大科技兴海资助项目(A200099E01);国家农业部海洋与河口渔业重点开放实验室基金资助项目(开-2-04-15);国家农业部渔业生态环境重点开放实验室开放基金资助项目(2004-2、2005-2

    Variations of fish species diversity,faunal assemblage,and abundances in Daya Bay in 1980-2007.

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    根据2004—2005年大亚湾海域底拖网鱼类调查数据,并结合1980—2007年的历史资料,分析了该海域鱼类的种类组成、区系特征、多样性、优势种和数量变化趋势.结果表明:2004—2005年,大亚湾海域共记录鱼类107种,分属13目50科,以中下层鱼类的种类最多,为48种,其次是中上层和底层种类,分别为37种和21种.大亚湾鱼类区系具热带和亚热带特性,以暖水性种类占绝对优势,为97种,暖温性种类为10种.多样性指数以夏季最高(3.82),其次是冬季(3.37)和秋季(3.00),春季最低(2.40).PIElOu均匀度指数的季节变化情况与多样性指数相似.1980—2007年大亚湾海域鱼类群落特征发生了明显的变化:鱼类种类数减少,优势种更替明显.鱼类种类数由1980年的157种减少至1990年的110种,2004—2005年继续减少至107种;鱼类优势种由1980年以带鱼和银鲳等优质鱼为主,更替为以小型和低值的小沙丁鱼、小公鱼和二长棘鲷幼鱼为主.用包含年际变化趋势和季节性周期变化的回归模型模拟1980—2007大亚湾鱼类资源密度的变化,鱼类资源密度在1980—1999年和1990—2007年两个时期均呈下降趋势,但1990—2007年间下降幅度比1980—1999年间大;1980—1999年鱼类资源密度的季节波动幅度较平缓(振幅为0.099),而1990—2007年的季节波动较大(振幅为0.420),说明1990—2007年阶段大亚湾鱼类数量的季节变化更为显著.Based on the 2004-2005 otter trawl survey data and the 1980-2007 relevant historical records,this paper analyzed the variations of fish species composition,faunal assemblage,diversity indices,dominant species,and abundance in Daya Bay.In the 2004-2005 trawl survey,a total of 107 fish species were recorded,belonging to 50 families and 13 orders,among which,meso-demersal fish were predominant,with 48 species recorded,and followed by pelagic and demersal fishes,with 37 and 21 species,respectively.The fishes in the Bay belonged to tropical and subtropical fauna,with the dominance of warm water fishes(97 species) and warm-temperate water fishes(10 species).The diversity index was the highest in summer(3.82),followed by in winter(3.37) and autumn(3.00),and the lowest in spring(2.40).The seasonal variation of Pielou evenness index mimicked that of diversity index.In 1980-2007,the characteristics of fish community in the Bay changed obviously.The species number reduced from 157 species in the 1980s to 110 species in the 1990s and to 107 species in 2004-2005,and the dominant species shifted from the high-value fishes such as hairtail and pomfret in the 1980s to low-value fishes such as sardine fish,anchovy,and juvenile porgy.A non-linear regression model composed of inter-annual trend and seasonal cycle was used to simulate the changes of fish stock density in 1980-1999 and 1990-2007,and the results indicated that in the two periods,the fish stock density in the Bay all showed a decreasing trend,but the decrement was larger in 1990-2007 than in 1980-1999.The seasonal variation of the stock density in 1980-1999 was relatively small,with an amplitude being 0.099,while that in 1990-2007 was relatively larger,with the amplitude being 0.420,illustrating that the fish abundance in the Bay had a larger seasonal fluctuation in 1990-2007.中央级公益性科研院所基本科研业务专项(2010YD10、2009TS08)资

    福建省信息经济学学科发展报告

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    信息经济学是信息科学的一个分支学科,是一门研究信息的经济现象及其运动变化特征的科学。该文从信息经济学学科和实际发展两个角度,梳理国内外信息经济学科发展现状,分析福建省信息经济的发展趋势,重点阐述福建省信息经济技术研发、平台建设、产业发展以及相关政策措施等方面的进展,并针对福建省信息经济发展存在的问题,提出相应的对策建议

    The effect of occupational identity on occupational delayed ratification of male nurses: Chain mediating effects of self-esteem and perceived social support

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    近年来,在全球突发公共卫生事件的影响下,医护人员的职业发展问题已经受到了管理者们的高度重视。同时,医护人员中存在着职业倦怠现象严重,对工作投入力度不够,工作压力增大等比较常见的问题,而近些年在护理人员队伍全方面发展的过程中出现了“男护士”这个群体,尤其是对于这个群体中占很大比例数量的“手术室男护士”来说,以上问题也较为普遍,为了纠正上述出现的消极现象,而着手研究其职业延迟满足水平情况,所谓的职业延迟满足就是指人们甘愿放弃对当前工作没有益处的休息或娱乐等即时满足的机会而为了得到更多工作上的回报和更好地完成工作任务而表现出的自我调控能力。过去的学者多是以女护士为研究对象,讨论女护士的职业延迟满足水平,而且已有研究开始探讨“职业认同”对“职业延迟满足”的关系,并研究发现职业认同对职业延迟满足有着重要影响;同时,研究对象职业认同水平的高低也决定着“自尊”水平及其“领悟社会支持”的程度,也会对其“职业延迟满足”水平起到促进的作用。所以本研究着手探讨手术室男护士群体职业认同、自尊、领悟社会支持水平和其本身职业延迟满足水平的关系,以便进一步探索影响手术室男护士职业延迟满足水平的因素,更好地促进手术室男护士队伍稳步向前发展,为医院管理者能够有针对性地实施管理提供强有力的理论依据。 此研究先后使用信效度较高的《护士职业认同评定量表》、《自尊量表》(SES),《领悟社会支持量表》(PSSS)和《职业延迟满足量表》对工作在河北省内的256名手术室男护士使用了“问卷星”问卷调查,得出以下结果: 1、手术室男护士职业延迟满足水平、职业认同水平及自尊和领悟社会支持水平总分及条目均分都处于中等水平,且四个变量间存在两两正相关关系。 2、手术室男护士的职业认同水平可以正向预测职业延迟满足水平,(95%的置信区间为0.26-0.38;也可以通过三条间接路径影响职业延迟满足水平:自尊的中介作用(95%置信区间0.02-0.07;领悟社会支持的中介作用(95%的置信区间0.01-0.05;自尊和领悟社会支持的链式中介作用(95%置信区间0.01-0.02)。 通过结果分析得出结论:手术室男护士职业认同、自尊、领悟社会支持及职业延迟满足间两两正相关;职业认同对其职业延迟满足具有直接影响效应,且会通过自尊一领悟社会支持的链式中介效应影响职业延迟满足
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