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Search Results: 1 - 10 of 178805 matches for " 高文荣 "
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云南生物多样性现状及保护对策探究
Study of Biodiversity Situation and It’s Conservation Measure in Yunnan Province
 [PDF]

, 朱万龙
Bioprocess (BP) , 2014, DOI: 10.12677/BP.2014.43005
Abstract:
云南省是我国生物多样性最为丰富的地区,保存有许多珍稀、特有和古老的类群,是公认的生物多样性重要类群分布最为集中、具有全球意义的生物多样性关键地区之一。进行云南生物多样性现状及保护对策的探究,对于我国乃至世界生物多样性的保护与可持续利用都具有重要的理论价值和实践意义。本文阐明了生物多样性的概念、价值及意义,对我国云南的动物资源、植物资源,生态系统类型,物种遗传资源等进行了系统的分析,针对我国云南生物多样性现状,论述了云南生物多样性的丰富性和特有性等特征,进而分析了云南生物多样性现存的问题。在此基础上,提出相应的保护对策,并且提出了关于云南生物多样性的一些展望。
Yunnan province is the most abundant area of biodiversity in China, which saves a lot of rare, en-demic and ancient groups and is one of the most important focuses of global significance and one of the key areas of biological diversity taxa distribution. Exploring the Countermeasures of Yunnan status of biodiversity and protection has the important theory value and practical significance for the protection of our country and the world of biological diversity and sustainable utilization. This paper illustrated the concept, value and significance of biodiversity. Animal resources, plant resources, ecosystem types and genetic of the species resources in Yunnan province were studied systematically. In view of the status of biodiversity in Yunnan, the paper discussed richness, en-demism and other feature of biodiversity and analyzed the existing problems of biodiversity in Yunnan. In the end, the paper pointed out the strategies related to the existing problems and made outlook about the biodiversity in Yunnan province.
东洋界特有种——中缅树鼩生理生态学研究进展及其展望
Oriental Endemic Species—Progress and Prospect of Studies on Physiological Ecology in Tree Shrews, Tupaia belangeri
 [PDF]

, 朱万龙
Bioprocess (BP) , 2014, DOI: 10.12677/BP.2014.44011
Abstract:
中缅树鼩为东洋界特有的小型哺乳动物,具有特殊的进化地位,在生物医学上被广泛采用为实验动物。本论文以中缅树鼩(Tupaia belangeri)为研究对象,从个体、组织及分子水平对中缅树鼩的产热特征及能量代谢进行了系统的研究。得到以下成果:首次从生理生态学角度支持了树鼩由南向北扩散的“岛屿起源”假说,温度是限制中缅树鼩继续向北扩散的主要因素;中缅树鼩的产热特征及能量代谢具有季节性和日节律变化,温度和光周期对产热特征及能量代谢具有显著影响。研究成果为东洋界小型哺乳动物的生理生态适应模式与对策提供了理论依据。
Tree shrew (Tupaia belangeri) is a small mammal in Oriental endemic with special evolution status, and it has been widely used in biomedicine as experimental animal. In this paper, we used T. belan-geri as the research object, thermogenesis and energy metabolism were measured in system of T. belangeri from individual, organization and molecular levels. The following results were obtained: for the first time to support the “island origin” hypothesis that T. belangeri diffused from south to north from the physiological ecology angle, and temperature is the major factor which limited T. be-langeri continued northward diffusion; thermal characteristics and energy metabolism in T. belan-geri with seasonal and diurnal variation; temperature and photoperiod had significant effects on its thermal characteristics and energy metabolism. Research results provide a theoretical basis of phy-siological ecological adaptation model and countermeasures for Oriental small mammals.
中缅树鼩解偶联蛋白-1基因部分序列的扩增与分析
Amplification and Analysis of the Partial cDNA Sequence of UCP1 Gene in Tupaia belangeri
 [PDF]

, 朱万龙
Bioprocess (BP) , 2014, DOI: 10.12677/BP.2014.44010
Abstract:
解偶联蛋白-1 (UCP1)是分布于线粒体内膜上的一种产热蛋白,其主要功能是参与褐色脂肪组织(BAT)的产热调节和能量代谢来维持机体的能量代谢平衡。本研究通过设计简并引物进行反转录聚合酶链式反应(RT-PCR),从中缅树鼩(Tupaia belangeri)BAT中成功获得444 bp UCP1 cDNA核心片段。推测其氨基酸序列为148个氨基酸;经结构功能分析发现,此段氨基酸序列具有32 bp UCPs 共同具有的同源序列,具有13 bp中缅树鼩BAT UCP1的特异性序列;进行氨基酸同源性序列比较分析表明,中缅树鼩与小家鼠、褐家鼠、灰仓鼠、家兔、马、猫、牛、海象、黑猩猩和大熊猫UCP1的同源性分别为80%、81%、82%、86%、85%、86%、89%、87%、83%和88%。结果表明:UCP1编码区在哺乳动物中具有较高保守性,提示UCP1在脊椎动物中扮演着重要的生理角色。
Uncoupling protein-1 (UCP1) is a kind of heat producing protein, which distributes on the inner membrane of mitochondria. Its main function is to maintain the body’s energy metabolic balance by participating thermogenic regulation and energy metabolism in BAT. In this study, we designed primers and used reversing transcriptase polymerase chain reaction (RT-PCR). This experiment successfully obtained 444 bp BAT UCP1 cDNA core fragment of tree shrews, and we speculated that the amino acid sequence were 148 amino acids. After structure-function analysis, we found that fragment composed of these amino acid possessed 32 bp homologous sequence of UCPs and 13 bp specific sequence of UCP1 in Tupaia belangeri. After the comparison of amino acid sequence ho-mology, the results showed that the UCP1 homology between tree shrews and other animals like Mus musculus, Rattus norvegicus, Cricetulus griseus, Oryctolagus cuniculus, Equus caballus, Felis ca-tus, Bos taurus, Odobenus rosmarus, Pongo abelii and Ailuropoda melanoleuca was respectively 80%, 81%, 82%, 86%, 85%, 86%, 89%, 87%, 83% and 88%. UCP1 coding region showed higher conser-vation in mammals, suggesting that UCP1 plays an important physiological role in vertebrates.
基于投影寻踪法的水库群防洪调度方案优选

人民黄河 , 2010,
Abstract: ?水库群防洪调度方案为多属性决策问题,受各属性间矛盾性和不可公度性的影响,目前尚没有完善的解决方法.选取最高水位、汛限水位与迎汛水位差值、区间组合洪水量及下游泄量等作为评价指标,采用基于加速遗传算法的投影寻踪模型,对滦河潘家口、大黑汀、桃林口三座水库防洪调度方案进行了评价与优选.结果表明:该方法能有效地对多个防洪调度方案进行优选.
屏边大围山自然保护区倭蜂猴(Nycticebus pygmaeus)栖息地植被特征的研究
Study on the Vegetation Types of the Nycticebus pygmaeus Habitats at Daweishan Nature Reserve in Pingbian
 [PDF]

, 蔡金红, 朱万龙
Bioprocess (BP) , 2014, DOI: 10.12677/BP.2014.43006
Abstract:
2009年2月6日~2月27日、2009年10月1日~10月24日和2010年4月20日~25日采用社区访谈和野外实地调查方法,共研究了10个地区,了解倭蜂猴在屏边大围山保护区及其周边社区的栖息地植被及数量状况。结果表明:取食生境中植被主要以漆树科,蔷薇科和壳斗科植物为主。倭蜂猴分布栖息地植被主要以杜英科,壳斗科和桑科植物为主。此外,倭蜂猴在鸡窝,石头寨,干田,田心,喏咪,火山,马尾冲,独家和碧马邑9个自然村周围存在分布点。其中,通过夜间的样线调查,在独家自然村村有林发现2只倭蜂猴实体。
On the basis of community interviews and wild quantity investigation in the night to Nycticebus pygmaeuses, we surveyed the current distribution and quantity situation of N. pygmaeus at the Daweishan Nature Reserves in Pingbian during the following three periods: February 6-27, 2009, October 1-24, 2009 and April 20-25, 2010, and the total 10 areas were study. The results showed that Anacardiaceae, Rosaceae and Fagaceae were dominant families in the feeding habitat. The dominant vegetations were Elaeocarpaceae, Fagaceae and Moraceae which were dominant families in the distribution area. Moreover, the distribution sites and quantity results suggested that the pygmy lorises were mainly distributed in the lower elevation areas, including Jiwo, Shitouzhai, Gantian, Tianxin, Nuomi, Huoshan, Maweichong, Dujia and Bimayi villages. The quantity was rare and only 2 entities were found personally at Dujia village’ forest.
瘦素研究的最新进展和科学意义
Recent Progress in the Study of Leptin and Its Scientific Significance
 [PDF]

, 张浩, 姜文秀, 朱万龙
Bioprocess (BP) , 2014, DOI: 10.12677/BP.2014.41001
Abstract: 瘦素主要是由脂肪细胞分泌的一种蛋白质,与机体摄食、能量代谢、脂肪存储等的调控密切相关。目前,瘦素抵抗作为肥胖发生的一个重要危险因素已经得到公认,但具体清晰的作用机制仍未阐明,仅有瘦素受体突变、瘦素转运、瘦素信号抑制、血管内缺陷、转换缺陷等各种假说。全球的研究者正试图以这些假说为基础探讨肥胖的发生机制,进而攻克肥胖。本文对瘦素及其受体的基因表达和分子结构做了简单介绍,分析了瘦素参与的JAK/STATRasMAPK信号通路。重点探讨了瘦素抵抗机制的可能通路,以期对肥胖的瘦素抵抗机制研究有一定的参考意义。
Leptin is a protein mainly secreted by the lipocyte, which is related to the regulation of food intake, energy expenditure and fat storage closely. Currently, the theory that leptin resistance is a primary risk factor for obesity has been accepted widely. But the clear mechanism has not been clarified yet. The occurrence of leptin resistance may be related to some hypotheses, such as leptin receptor mutation, leptin transshipment, leptin signal suppression, vascular defects and conversion defects. The researchers from all over the world are trying to discover the mechanism based on these hypotheses and are expecting to cure the obesity completely. This review 1) briefly introduces the gene expression and the molecular structure of leptin and leptin receptor; 2) analyzes the signal transduction of leptin such as JAK/STAT, Ras and MAPK; 3) summarizes the access of leptin resistance. Maybe the work will have the certain reference value to the obesity research in the mechanisms of leptin resistance.
解偶联蛋白-1(UCP1)的研究进展及其应用前景
The Research Progress and Application Prospect of Uncoupling Protein 1 (UCP1)
 [PDF]

, 张麟, 余婷婷, 朱万龙, 王政昆
Bioprocess (BP) , 2012, DOI: 10.12677/BP.2012.23021
Abstract: UCP1是唯一在褐色脂肪组织(BAT)中表达的解偶联蛋白质。有别于解偶联蛋白家族其他成员的功能,UCP1的主要功能是参与BAT的产热调节和能量代谢来维持机体的能量代谢平衡。陆续有研究阐明调控UCP1参与BAT产热调节和能量代谢的分子机制,逐渐揭示了UCP1BAT能量代谢过程中涉及的信号通路与转录调控。这不仅让我们更好地理解UCP1BAT能量代谢调控中的重要作用,而且为基于褐色脂肪组织的肥胖治疗提供了理论依据。本文阐述了近年来研究发现的UCP1BAT能量代谢过程中发挥重要作用的信号通路与转录调控,并讨论了多种基于针对褐色脂肪组织的肥胖治疗手段的有效性与可行性。
UCP1 is the only one expression of uncoupling protein in the brown adipose tissue (BAT). Different from the uncoupling protein family other member functions, UCP1’s main function is to participate thermogenic regulation and energy metabolism in BAT to maintain the body’s energy metabolic balance. In
内循环气升式发酵罐的特性及其用于谷氨酸发酵的研究
,
生物工程学报 , 1993,
Abstract: 对50L内循环气升式发酵罐的混合、传质、气含率、液体循环等性能进行了系统的研究,优选出设备的最佳结构及得出氧的体积传质系数(kLa)关联式。在此基础上,进行了谷氨酸的一次低糖发酵试验,得出适用于此设备的谷氨酸发酵最佳工艺。实验结果的最高产酸率为7.69%,转化率为58.8%,比使用同一菌种的用机械搅拌罐发酵的产酸率(6.O%)及转化率(44%)分别提高28.2%和33.6%。
Fowler-Nordheim高电场应力引起的MOS结构损伤研究
,
半导体学报 , 1996,
Abstract: 本文研究了Fowler-Nordheim高电场应力引起的MOS结构损伤及其室温退火.结果表明有四种损伤产生:氧化物正电荷建立、Si/SiO2快界面态增长、慢界面态产生和栅介质电容下降.当终止应力后,前三种损伤在室温下有所恢复,但最后一种损伤没有变化.实验还表明:产生的慢界面态分布在禁带上半部;高电场下栅介质电容呈现无规阶梯型下降.对四种损伤及其室温退火机理进行了讨论.还给出产生的慢界面态对高频电容-电压测量的影响.
回注水除铁的影响因素研究
Research on Influential Factors of Iron Removal for Reinjection Water
 [PDF]

, 张健, 檀国, 段明, 建崇, 崔盈贤
Hans Journal of Chemical Engineering and Technology (HJCET) , 2013, DOI: 10.12677/HJCET.2013.33018
Abstract:

针对油田回注水中Fe2+影响悬浮固体含量的问题,本文采用活性材料催化氧化并辅以截留分离的方法,除去水中的Fe2+。考察了活化时间、材料厚度及过滤速度等因素对除铁效果的影响。实验结果表明:活性材料在活化时间6天、活性材料厚度0.8 m、过滤速度0.1 L/min条件下,能够有效去除水中Fe2+,其含量由10 mg/L降低至0.1 mg/L以内。在油田现场回注水处理时,可将水中的Fe2+含量由0.6 mg/L降低至0.05 mg/L,有利于降低水中悬浮固体含量。
In view of the Fe2+ in the reinjection water affected the content of suspend solid, the writer used the reactive material to oxidize and catalyze the Fe2+, and researched the influential factors of iron removal, such as reactive time, the thickness and the current velocity. The results showed that the reactive material removed the Fe2+ and was reduced to 0.1 mg/L from 10 mg/L when its reactive time was 6 days, the thickness was 0.8 m and the current velocity was 0.1 L/min, which was good for reducing the content of suspend solid.

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