combinations相关论文
Alzheimer\'s disease (AD) remains one of the significant causes of death and morbidity in the older population (2021).......
Combinations of the Ghd7, Ghd8 and Hd1 genes largely define the ecogeographical adaptation and yield
Rice cultivars have been adapted to favorable ecological regions and cropping seasons by artificial selection of photope......
Glycated haemoglobin reduction and fixed ratio combinations of analogue basal insulin and glucagon-l
BACKGROUND Fixed ratio combinations(FRCs)of analogue basal insulin and glucagon-like peptide-1 receptor agonists are a n......
学好地道英语的良师益友——介绍TheBBIDictionaryofEnglishWordCombinations(Revisededition)封高英语和其他语言一样,对非英语国家的学生来说,可能会碰到许多问题,要真正学好并掌握它不是一件容......
In this paper, We propose and prove the following equation, where {n 3} is a stirling number of the second kind, when n ......
叙述了开发层系划分现状,分析了细分层开发影响因素,提出合理地细分层系可改善水驱开发效果。......
利用第二类Stirling数的有关结论,并根据广义第二类Stirling数的定义得出了一系列结论....
本文应用转化机构的基本概念分析了封闭式差动轮系,多自由度轮系和多重轮系的传动比、力矩和效率。更多还原......
关于钢筋工程量计算有争议的问题很多,本文就某地下室工程柱复合箍筋组合方式进行探讨,结合工程实践,提出争议解决方法, 以供参考.......
A Comparative Study on the Excitation of Large Volume Airgun Source with Different Combinations in H
In order to study the excitation of large-volume airgun source with different combinations in Hutubi,Xinjiang,China,we c......
近年来,伴随着集约化养殖规模的不断扩大以及促生长用抗生素的大量使用,细菌耐药性问题日益严重,而新兽药研发处于瓶颈时期,养殖业......
利用对有限集合的分划方案数给出了当n≥12时的第二类Stirling数s2(n,n-6)的计算公式,这有助于分配计数问题的研究.......
目前中国早稻食用品质较差,为今后选育优质杂交早稻组合提供理论依据,选用生产上常用的8个杂交稻不育系和12个杂交早稻恢复系(品种),......
本文运用组合理论对第二类Stirling数展开分析,从而给出当n≥14时,第二类Stirling数S(n,n-7)的一个公式.......
Colorectal 癌症仍然是世界范围的癌症死亡的主要原因之一。在过去的年期间,新有效治疗选择的发展在这疾病的结果导致了可观的改进......
目的了解杀虫剂复配对不同抗性品系淡色库蚊的杀灭效果。方法采用WHO生物测试法,测定了五种杀虫剂两两复配对三种抗性品系蚊虫的增......
第二类stirling数是分配问题中的最关键数,当n与r很大时stirling数的计算极为繁琐,给出并证明了当n≥12的第二类stirling数S(n,n-6)的恒......
证明一些恒等式,并给出了当n≥8时的第二类stirling数{n n-4}....
根据辞格的定义及其建立辞格的原则,我们发现许多辞格的界限是十分模糊的,交叉重合的现象比较突出,不便于人们学习和运用。为了辞格建......
在这份报纸,,我们求婚并且证明下列方程 n 3 } 是第二种类型的一个 stirling 数字,什么时候 3 被给的 n。......
本文我们用排列,组合的有关性质及数学归纳法证明了几个与排列组合有关的恒等式。...
通过明恢63/泰引1号/IR26杂交选育而成的水稻恢复系绵恢501,具有恢复度高,配合力强,抗病性好,制种产量高,杂种优势强等特点,与野败型、冈型、D型、印尼......
对二级杂交12个组合早期生长性能进行了测试.经综合评定,筛选出S×LC和Y×LC两个最佳配套组合.其父母代种鸡64周龄产蛋量......
给出了两个幂等矩阵之差的可逆性与群逆的充要条件,研究了三个不同的且两两可换的非零的对合矩阵A,B,C的组合T=al+6A+c8+dC+融曰+fBc+gAc+hAB......
由第2类Stirling数与组合数之间的关系,得到第2类Stirling数的2个恒等式....
利用组合原理,证明了当n≥5时,第二类Stirling数S2(n,5)的计算公式,采用同样的方法给出了n≥r时,第二类Stirling数S2(n,r)的计算公式.......
证明一些恒等式,并给出了当n≥10时的第二类stirling数S2(n,n-5)的计算公式....
运用组合理论对第二类stirling数开展了分析.第二类stirling数S2(n,n-6)表示把含有n个元素的一个集合分成恰好有n-6个非空子集合的分拆......
根据广义第二类Stirling数的定义,得到一个有关第二类Stirling数S3(n,n—tk)的公式。...
本文给出了广义第二类Stirling数的一个定义,并由此得到一个有关第二类Stirling数的一个更一般公式。......
针对北京市永定河莲石湖主要沉水植物菹草,由于夏季演替导致水质净化效果降低,选用伊乐藻(Elodea canadensis Michx)、轮叶黑藻(Hy......
MicroPath-A pathway-based pipeline for the comparison of multiple gene expression profiles to identi
High throughput gene expression analysis is swiftly becoming the focal point for deciphering molecular mechanisms underl......
Significant advances in breast cancer treatment have been made where it is now possible to treat localized disease to a ......
通过300个杂交组合F0代种子盐水发芽实验、F1代植株盐土盆栽试验,研究了杂交组合亲缘与早代后裔耐盐性的关系,旨在寻求耐盐品系选......
State-of-the-Art Technology in the Construction of Sea-Crossing Fixed Links with a Bridge, Island, a
In general, two kinds of structures are used to provide a way across a river, canal, sea, or other obstacle: bridge stru......
We have examined the effects of environmentally realistic concentrations of widely used pesticides and fertilizers for r......
Using the RNA synthetic activity of glutamate dehydrogenase to illuminate the natural role of the en
Glutamate Dehydrogenase (GDH;EC 1.4.1.2) catalyzes the reversible amination of α-ketoglutarate to glutamate, and the po......
In this paper, we discuss the average errors of function approximation by linear combinations of Bernstein operators. Th......
本文通过对组合电器中负荷开关与熔断器之间的配合特性分析,认为减小熔断器在转移电流区域内的弧前时间或适当增加熔断器触发的负荷......
Association rules analysis of Fufang Kushen injection in combination with traditional Chinese medici
Objective: The present study aimed to analyze the association rules of Fufang Kushen injection in combination with other......
Isobolographic Method and Invertebrate (Planarian) Model for Evaluating Combinations of Waterways Po
Agricultural, pharmaceutical, and other biologically active substances are emptied or leach into waterways and groundwat......
Detection of Antibodies in Serum Specimens from Dogs with Blastomycosis with Lysate Antigens Prepare
Blastomycosis, the systemic fungal infection of humans and animals, has presented a diagnostic challenge to clinicians a......
High ahitude polycythemia (HAPC) is known red blood cells and blood viscosity caused by plateau low about altitude sicknes......
In this paper,substantial domestic and foreign research results of microscopic shale reservoir space were systemically r......