Bottleneck effect and mutation-drift equilibrium tests indicated that the M.nipponense populations in the Lake did not suffer bottleneck effect, and had no decline in their quantity in recent time. 瓶颈效应和突变-漂移平衡分析表明,鄱阳湖日本沼虾群体近期没有经历过瓶颈效应,群体数量也没有下降。
Objective To study the effect of the preparation of blood composition "bottleneck", and eliminate the bottleneck effect on blood component preparation process influence. 目的探讨影响血液成分制备的“瓶颈效应”,以及消除“瓶颈效应”对血液成分制备过程的影响。
Genetic variation is major study content in conservation genetics. In small population, genetic variation loss because of bottleneck effect, inbreeding, founder effect, and genetic drift. 遗传变异性是遗传保护研究的主要内容,在小种群中,往往由于瓶颈效应、近亲繁殖、奠基者效应和遗传漂变等使得遗传变异性减少。
In this sense, economic globalization and the fact that China has gradually integrated into the world economic system have lessened the bottleneck effect of resources in China, which means there is room for China's rapid economic growth. 经济全球化的发展,以及中国经济日益融入世界经济分工体系,为中国缓解资源瓶颈,实现经济快速增长,提供了可能和空间。
Prices'drop is due to supply over demand for the low-end goods," bottleneck "effect of effective consumption; 影响物价走低是低端商品供过于求,有效消费主体的瓶颈制约;
But owing to the bottleneck effect of amount and structure of human capital, there has been structural contradiction between regional industrial structure and human capital in Yibin. 由于人力资本总量与结构的瓶颈效应,导致目前宜宾的区域产业结构与人力资本存在结构性矛盾。
The rule of bill system, which has some bottleneck effect and objectively affects whether or not the bill will enter into legislation process and its ultimate fate. 立法议案的制度规定有一定的瓶颈效应,客观上会影响到立法议案能否进入立法程序以及立法议案在立法程序中的最终命运。
A Talk on the Breakthrough of Bottleneck Effect of Moral Education at Colleges and 浅谈如何突破高校德育效果的瓶颈效应
Authors account such effects for their intense scattering, so more pumping photons trapped by active molecule, and for the large vibrational heat content relative to their molecular weight, so the "bottleneck" effect can be decreased. 本文把这种作用归因于它们对泵浦光的强散射作用,从而使泵浦光被活性分子更多地俘获,以及相对于它们的分子量来说有大的振动热容量,从而减轻瓶颈效应。
To downplay this bottleneck effect, the pluralization of fund raising channels can be an objective and realistic alternative. 为突破这一“瓶颈”,筹资渠道多元化不失为一条客观而又现实的有效途径。
The Bottleneck Effect on the Redshift in the IR Multiphoton Dissociation 红外多光子解离中红移的瓶颈效应
The relations between the photolysis frequency and the dissociation threshold and between the bottleneck effect and the molecular structure have been discussed. 对瓶颈效应与分子结构之间的关系及解离阈值与激发频率之间的关系也作了简单的讨论。
The transmission mechanism, transmission bottleneck and multiplicative effect constitute the transmission model of the industry policy together and the base of the industry policy optimization. 产业政策的传导机制、传导瓶颈和乘数效应,共同构成了产业政策传导模型,并形成产业政策优化的基础。
Low nucleotide diversity ( 0.136%) was found indicating a bottleneck effect during ice ages. 核苷酸多态性很低(0.136%),这可能是由于冰期瓶颈效应的结果。
With the performance of network hardware flying to progress, bottleneck effect of network bandwith has been gradually attenuating, and the problem of server performance gradually present out. 随着网络硬件设备的飞速进步,网络带宽的瓶颈效应日趋减弱,服务器的性能问题逐渐显现出来。
A majority of current bandwidth estimation methodologies rely on the principle of the bottleneck spacing effect. Based on the concept of packet dispersion, many packet pair/ packet train techniques were presented to estimate capacity/ available bandwidth. 目前绝大多数带宽测量方法都是基于网络瓶颈分隔原理的,在此基础上形成了基于包对/包队列的各种容量/可用带宽探测方法。
It was observed that buffer gases can reduce the early bottleneck effect. 同时也观察到外加气体对早期瓶颈效应的消除。
The rapid development of electronic commerce, greatly promote the development of the logistics industry, but also underlines the bottleneck effect of logistics to electronic commerce. 电子商务的快速发展,极大地促进了物流业的发展,但也突显出物流对电子商务形成的瓶颈影响。
The result indicated that Cunninghamia lanceolata migrated to lower altitude where had a smaller impact of the glacial times and that during interglacial period, there may be bottleneck effect in the demographic history of Cunninghamia/ anceo/ ata. 这表明,受冰期影响作用较小的低纬度地区可能是冰期回迁的交汇地,在杉木的历史演化过程中可能存在瓶颈效应。
The deep contradictions and problems which gradually emerged due to negative factors throughout the country as well as trouble of development of Xiamen Special Economic Zone become the bottleneck to effect and limit the urban-rural integration development in Xiamen City. 但在存在全国背景下的不利因素的同时,由于厦门经济特区发展的困境,一些深层次的矛盾和问题逐渐显露出来,成为影响和制约厦门市城乡经济社会一体化发展的瓶颈。
Having the ability of dealing with high-speed, broad-bandwidth, great-capability signal, all-optical signal processing becomes a key technology for future all-optical communications networks and can break through "electronic bottleneck" effect due to the photo-electric-photo transformation of the nodes. 全光信号处理具有处理高速率、宽带宽、大容量信号的能力,是未来全光通信网络的关键技术,能突破节点光-电-光转换所引起的电子瓶颈效应。
The key point to restrict traffic capacity of the arterials is intersection. The traffic capacity of an intersection is lower than a link because of the bottleneck effect and excessive traffic demand will lead to congestion. 制约城市主干路通行能力的关键点是路口,由于瓶颈效应,路口的通行能力比路段低,交通需求过大就会引发拥堵。
The dissertation aims to find reasonable power allocation strategies. The major works are outlined as follows: Firstly, two optimum power allocation algorithms based on bottleneck effect of relay channel strength and harmonic mean of relay channel strength respectively to increase the system capacity are proposed. 本文的主要工作就是寻找合理的功率分配方案。具体为:1、以提高系统容量为目的,分别基于瓶颈效应与调和平均值,提出了两种优化功率分配方案。
Multiple invasions leaded the high population genetic diversities and overcame the bottleneck effect in population establishment stage, 3. 不同来源地桔小实蝇的多重入侵造成重庆地区种群的遗传多样性高,且多重入侵克服了种群建立阶段的瓶颈效应。
Cancer as a serious threat to human life and health, claimed millions of lives annually, whereas the traditional methods of treatment have emerged bottleneck effect. 恶性肿瘤作为严重威胁人类生命和健康的疾病,每年要夺去数百万人的生命,而传统的治疗手段出现了瓶颈效应。
Although the populations from Yunyang and Pingguo may have experience a short-term genetic "bottleneck effect" due to overfishing and other factors, it did not affect their level of genetic diversity. 其中,虽然云阳群体和平果群体可能由于过度捕捞等因素的影响存在过短期的遗传瓶颈效应,但并未对其遗传多样性的水平造成影响。
With the rapid development of TV shopping, online shopping, bottleneck effect of express delivery logistics become increasingly prominent. 随着电视购物、网络购物的快速发展,快递物流的瓶颈制约效应日益突出。
The traditional information processing technology is mainly based on statistics and the text surface features, which lack of semantic understanding of text content. And the bottleneck in processing effect has become one of the important problems that need to be resolved in current information science. 传统的信息处理技术主要以统计和文本表层特征为基础,缺乏对文本内容的语义理解,在处理效果方面的瓶颈已经成为当前信息科学需要解决的重要问题之一。
IMS Media Transfer Mode entirely adopts dependence on Single-path Transmission Mode of Carrier Network, existing difficulty of ensuring end-to-end QoS, prominent bandwidth bottleneck effect, and inefficient transmission, seriously restricting the development of IMS business. IMS媒体传输模式采用完全依赖承载网络的单径传输模式,存在着端到端的QoS保证困难、带宽瓶颈效应突出、传输效率低下等问题,严重制约了IMS业务的发展。