性选择的
- 与 性选择的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The mechanism of the OGFC pavement functions is fully analyzed, with a description of the mix ratio design and raw material selection, including the function and features of permeability, antiskid , noise reduction, temperature reduction, etc.
全面分析了OGFC路面的功能与作用的机理,介绍了OGFC配合比设计和原材料选择,分析了透水性、抗滑性、降噪性和降温性等功能和特点,最后也分析了耐久性差、生产成本高、维护成本高等不足。
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The disquisition brings forward three principle in combination arithmetic designing and combination arithmetic choice. There is currency, countability and less information redundancy. And the disquisition analyses the relation of them. The three principle is the dominant ideology in combination arithmetic designing.
组合算法的选择与应用组合算法评价依据复杂性选择应用本文提出了在组合算法设计和组合算法选择方面所应当遵循的三个原则,即通用性、可计算性和较少的信息冗余量,并初步分析了它们之间的相互关系。
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The most effective method to study rheology of mafic granulite is to perform creep tests using natural gabbro as well as using hot pressed synthetic samples prepared from the major mineral components extracted from mafic granulite.
选择与基性麻粒岩中主要矿物成分接近的天然辉长岩,或者从天然基性麻粒岩中挑选出主要矿物,通过热压合成人工样品,进行高温流变实验是研究基性麻粒岩流变的最有效途径。
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Finally, it analyses the time complexity of the algorithm and researches how it is influenced by culture operator.3、The paper presents the evaluation standard of the GA's application capability. Basing on characters such as continuity, multi-peak, vibration, randomicity as well as large-scale, five functions are selected to test search ability and robustcity of co-evolution algorithm. Finally, it analyses the simulation result and researches the influence of algorithm brought by culture operators.4、Basing on the concept of collection overcast, it researches the task distribution issue and constitutes delaminated math model on task distribution issue. It puts out the co-evolution algorithm of subtask's decomposing. The experiment compare IGA、SGA to CN and validates the efficiency of co-evolution algorithm on the NP completeness issue.5、Being aim at the optimization issue of load of antenna near ground, it combines many GA strategies and puts forward strategic meme. And it puts out co-evolution algorithm of load of antenna design. And it emulates the optimization design of load of antenna near ground. Finally, it valuates the co-evolution algorithm's efficiency on the continuum search issues of multi-variable and multi-peak value.6、Being aiming at the knowledge of image model matching, it adopts single meme and real code. It puts out fast co-evolution matching algorithm strategy. Basing on NPROD resemble measurement, I emulate the indiscrimination model matching and discrimination model matching. Finally, it valuates the co-evolution algorithm's efficiency on the real code and real time search issue.
分析了算法的时间复杂度,研究了文化算子对算法时间复杂度的影响。3、提出了GA的应用性能评价标准,从连续性、多峰性、随机性、振荡性、广域性多个角度出发选择五个测试函数,对共同进化算法的搜索性能和鲁棒性作了函数优化的性能测试,分析了仿真结果,研究了文化算子对算法的影响。4、基于集覆盖的概念,研究了MAS中的任务分配问题,建立了任务分配问题的分层数学模型,给出了子任务分解共同进化算法,实验比较了IGA、SGA、CN,验证了共同进化算法对NP完全问题的有效性。5、针对近地天线加载优化设计问题,结合多种改进GA策略,提出了策略型拟子,给出天线加载设计的共同进化算法,对有耗半空间对称偶极子天线加载优化设计作了仿真实验,验证了共同进化算法对多变量多峰连续搜索问题上的有效性。6、针对图像模板匹配问题的领域知识,采用单类拟子和实数编码,给出快速共同进化匹配算法策略,基于NPROD相似度测度,仿真试验了无差别和有差别模板匹配,验证了共同进化算法对实数编码和实时性搜索问题上的有效性。
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The progress of the study on the sex pheromones in Lasiocampidae in different respects, such as species-specific characteristics of the sex pheromones, its biosynthesis and regulatory mechanism and, its carriers and application in the field were reviewed.
从枯叶蛾科昆虫性信息素所具有的物种特异性、性信息素的生物合成及调控机理和性信息素载体选择及应用现状等方面系统阐述枯叶蛾科昆虫性信息素的研究现状及最新进展。
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Libellula had different resistance to different races and Xiannong 4 was susceptible to all the races except CY18 and CY22. Resistant components had significant variances among different cultivars, races and cultivar×race. And Libellula had strong selection on different races, while the selection of Xiannong 4 was weaker than that of Libellula.
里勃留拉的抗性谱较宽,抗病性在小种间差异明显,而咸农4号对除CY18、CY22外的小种均感病;两者的抗病性组分在品种间、小种间以及品种×小种互作时均有显著差异;里勃留拉对不同菌系有较强的选择作用,而咸农4号的选择作用较弱。
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Proved the proposed scheme to be message confidentiality non-repudiation and unforgeability under the random oracle model.
在随机预言机模型下给出了该方案的安全性证明,证明结果表明该方案满足抗适应性选择密文攻击下的机密性、不可伪造性和不可否认性。
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Chiral ligands mentioned above and their complexes with acetate copper were used as enantio-selective catalysts in asymmetric cyclopropanation reactions of diazoacetate and 1,1-diphenyl ethylene. Investigations indicate that all of them reveal certain optical-selective capability, but chiral C2-symmetric 2,6-bispyridine ligands show better catalytic capability than chiral asymmetric schifF-base ligands.
选择了2个手性2,6-吡啶双噁唑啉配体和6个手性不对称席夫碱配体与醋酸铜形成的配合物作为催化剂,对重氮乙酸乙酯与1,1-二苯乙烯不对称环加成进行催化反应,发现这8个催化剂对1,1-二苯乙烯的不对称环丙烷化反应都表现出了一定的光学活性诱导能力,手性2,6-吡啶双噁唑啉-铜类具有比手性Schiff碱-铜类更好的催化性能。
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A detailed discuss in selection of detector, chromatographic column, method of preconcentration in gas chromatographic determinations, which is the most practical technique among analysis of sulphur-containing compounds, and prospects of analytical testing techniques for volatile organic sulfur in water are presented in this paper.
气相色谱技术是测试该类物质的实用技术,从检测器的选择、色谱柱的选择和预富集方法三个方面详细介绍了采用气相色谱分析水中微量挥发性有机硫化物过程中遇到的主要问题和解决方法,并展望了水中微量挥发性有机硫化物分析测试技术的发展方向。
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A detailed discuss in selection of detector, chromatographic column, method of preconcentration in gas chromatographic determinations, which is the most practical technique among analysis of sulphur-containing compounds, and prospects of analytical testing techniques for volatile organic sulfur in water are presented in this paper. Contents
气相色谱技术是测试该类物质的实用技术,从检测器的选择、色谱柱的选择和预富集方法三个方面详细介绍了采用气相色谱分析水中微量挥发性有机硫化物过程中遇到的主要问题和解决方法,并展望了水中微量挥发性有机硫化物分析测试技术的发展方向。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。