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In other words,an affirmative answer are given for the question on the set of factorization indicesof completely positive realizations of a graph raised by N.

关于完全正矩阵:本文给出圈的双非负实现为完全正的一个充要条件,并确定其非负分解指数和非负分解;证明完全正图的非负分解指数集没有缺数,换句话说,给出了关于图的完全正矩阵实现的非负分解指数集的N。

Based on choosing contrast and definite water conditions, we suggested that relative mean yield of all irrigation treatments, revisionary drought yield index , revisionary water yield index , sensitivity index of stages and revisionary yield index could be used to identify yield, drought resistance, water use efficiency, water sensitivity and water adaptive.

提出在合理选用对照种和明确水分鉴定条件的前提下,采用干旱产量指数修订值鉴定品种的抗旱性,用丰水产量指数修订值鉴定各水分条件下品种的水分高效性,用各水分条件下品种的平均产量相对值鉴定品种的高产性,采用阶段敏感指数鉴定不同生育期的水分敏感性,采用产量系数修订值鉴定品种的适水性。

Topological indexes of A , B , C and D were all obtained from the different combination of topological vertex degree. A QSAR equation for this series of compounds was established based on the multi-linear regression method and a new group of autocorrelation topological indexes. The results showed that the biological activity is linearly correlated with the volume and branching size of the quinclorac derivatives. Finally, new herbicide was designed based on all QSAR results.

针对应用经典结构参数和量子化学参数得出的结果不够理想的问题,对点价自相关拓扑指数进行了研究,建立了一组新型的点价自相关拓扑指数A、B、C、D;首次将该指数用于除草剂氯喹酸酯类化合物的定量构效关系研究中,建立了很好的定量构效关系方程,综合分析所有的QSAR结果设计出了潜在的新型除草剂氯喹酸烯丙酯。

Based on data collected at four stations in Daning River in the spring of 2004 and 2005, phytoplankton community structure, vertical distribution, abundance, biomass, C contents, diversity index, richness index and evenness index were studied. The causes of eutrophication and water blooms in Daning River were analysed and control measures were then put forward. The dominant species were Asterionella Formosa, Cryptomonas ovata, Cyclotella caspia, Stephanodiscus neoastraea in the spring of 2004 and those were Pandorina morum, Eudorina elegans, Cyclotella caspia, Cryptomonas ovata in the spring of 2005. Average cell densities, biomass, C contents in the spring of 2004 and 2005 were 171.1×10^5 cells/L, 12.2 mg/L, 1732.2g C/L and 113.1×10^5 cells/L, 10.1 mg/L, 1395.9g C/L, respectively.

报道了大宁河2004年春季和2005年春季浮游藻类的种类组成、垂直分布、数量、生物量以及C含量的调查结果,并应用多样性指数、丰富度指数和均匀性指数对其水质进行了综合评价;对大宁河蓄水后出现的富营养化现象和春季发生&水华&的原因进行了探讨,同时提出了控制水体富营养化的建议。2004年春季,藻类优势种为美丽星杆藻、卵形隐藻、里海小环藻和新星形冠盘藻;2005年春季的优势种为实球藻、空球藻、里海小环藻和卵形隐藻。2004年和2005年的细胞密度、生物量和C含量分别平均为171.1×10^5 cells/L,12.2 mg/L,1732.2g C/L和113.1×10^5 cells/L,10.1 mg/L,

For A-early F type MS stars, stellar chromospheric activity decrease with stellar rotation period, but increase with Rossby number; For M type MS stars, stellar chromospheric activity increase with stellar rotation period and Rossby number, and stellar chromospheric activity reach saturation at large color index; For the MS stars between mid-F to M type, stellar chromospheric activity decrease with stellar rotation period and Rossby number.

在第五章中,我们采用不同的磁活动指数研究了晚型恒星磁活动与恒星自转参量(自转周期、Rossby数)、磁活动与恒星色指数以及恒星磁活动指数之间的相关性。大样本分析显示晚型主序恒星的色球活动与恒星自转参量的研究晚型主序恒星的色球活动与恒星自转参量间的关系表现出对恒星光谱型的依赖。

Through the collection and selection of the original data, the establishment of comprehensive assessment index regime and the determination of index weight, this thesis establishes a canonical and exercisable quality index system of construction projects.

通过原始数据的分析整理、综合评价指标体系的确定、各级指标的赋权以及建筑工程质量指数计算方法的选择和指数分析模型的建立,本文构建了较为规范的建筑工程质量指数体系。

Bieti lost its habitat continuously in recently decades associated with the extension of rangelands and farmlands, as well as firewood collection etc. The monkey live mainly in primary fir forest and the mixed conifer forest, to evaluate the status of the monkeys' habitat, we employed GIS and RS software to identify the habitat types with five Landsat TM/ETM+ satellite imagery in winter of 1986, 1992, 1997, 2001 and 2006 years respectively. The work resulted in: 1 the size of summer grazing lands, farmlands, and fir forest was 13 100 hm2, 6 400 hm2, and 30 500 hm2 in 2006 respectively; 2 during the past 20 years (1986-2006), the size of fir forest (including primary fir forest and the mixed conifer forest) decreased by 14.6%(5 200 hm2), summer grazing lands and farmlands increased by 47.2%(4 200 hm2) and 14.3%(800 hm2) respectively; and 3, during the past 20 years, the number of firry forest patches increased by 68.4%, the mean size of firry forest patches decreased by 49.3%(from 15.1 to7.6 hm2), the largest patch index of firry forest decreased 54.9%; the patch richness had no change, but the Shannon's diversity index and the Shannon's evenness index increased by 2.7% respectively.

为了评估该物种的栖息地现状和变化情况,我们通过野外调查工作,应用GIS和RS技术,分别解译了1986年、1992年、1997年、2001年和2006年的Landsat TM/ETM+冬季卫星影像,并对解译结果进行了计算和分析,得到了以下西藏种群栖息地的主要结果:1)现有暗针叶林(包括原始针叶林和针阔混交林)面积是30 500 hm2,夏季牧场面积是13 100 hm2,农田面积是6 400 hm2;2)在过去20年间(1986-2006年),暗针叶林面积减少了14.6%(5 200 hm2),夏季牧场面积增加了47.2%(4 200 hm2),农田面积增加了14.3%(800 hm2);3)在过去20年间,暗针叶林的斑块数量增加了68.4%,平均斑块面积下降了49.3%(从1986年的15.1 hm2下降到2006年的7.6 hm2),最大的斑块指数下降了54.9%;景观丰富度并没有变化,但Shannon多样性指数和Shannon均匀度指数分别增加了2.7%。

Each male ratwas paired with 2 female rats in proestrus when administration terminated. Femalerats were examined the next morning for the presence of sperm in vaginal smears andunderwent a cesarean section on day 13 of gestation. Then the reproductive indiceswere calculated as follows: copulation index, pregnancy index, and fertility index,which can evaluate male fertility directly. The sperm motility and morphology wereevaluated by computer-assisted sperm analysis, moreover, the caudaepididymal sperm ultramicrostructure were analyzed by transmission electronmicroscope, which can evaluate the influence on sperm maturation bydutasteride ; sperm survival rate was assessed by SYBR-14 and propidium iodidefluorescent staining; serumal dihydrotestosterone and testosterone of ratswere detected by enzyme-labeled immunoassay, which can evaluate the effecton androgenic levels; the weights of testes and epididymides, were determined byprecise electronic balance; histological examination of above tissues were evaluatedby HE staining and TEM, which can evaluate treatment on histology of reproductiveorgans by dutasteride.

给药结束后雄鼠与处于动情前期的雌鼠按2:1合笼,计算雌鼠的交配指数、受孕指数和生育指数,直接评价雄鼠生育力;采用计算机辅助精子分析系统分析大鼠附睾精子活力和形态,在此基础上合并使用透射电镜技术对各组附睾尾部精子进行透射电镜分析,评价度他雄胺对大鼠精子成熟的影响;采用SYBR-14和propidium iodide双重荧光染色计算精子存活率;采用Elisa法测定大鼠睾酮(testosterone, T)和双氢睾酮(dihydrotestosterone, DHT)血清浓度,评价度他雄胺对雄鼠雄激素水平的影响;采用精密电子天平对各组睾丸、附睾、前列腺和精囊进行称重,评价度他雄胺对大鼠生殖器官重量的影响;采用HE染色法对各组睾丸和附睾进行组织学分析,同时采用透射电镜技术对附睾上皮细胞超微结构进行分析,评价度他雄胺对大鼠主要生殖器官组织学的影响。

Since Wolf put up the trajectory algorithm to Lyapunov exponent in 1985, how to calculate the Lyapunov exponent with accuracy has become a very important question. Based on the theoretical algorithm of Zuo Binwu, the matric algorithm of Lyapunov exponent is given, and the results with the results of Wolfs algorithm are compared.

Lyapunov指数l是定量描述混沌吸引子的重要指标,自从1985年Wolf提出Lyapunov指数l的轨线算法以来,如何准确、快速地计算正的、最大的Lyapunov指数lmax便成为人们关注的问题,虽有不少成功计算的报导,但一般并不公开交流。

Because there are three different criteria for such status—income per head, a human assets index comprising health, nutrition, literacy and school enrolments, and an economic vulnerability index (which uses various measures to assess a country's exposure to natural and climatic setbacks)—the data, based on figures for income per head, give no more than a broad indication of graduation timetables.

因为对这些身份而言有三项不同的标准——人均收入、由健康、营养状况、读写能力和入学年纪构成的人均资产指数,以及一项经济脆弱指数(这个指数在评估时使用了大量措施,将一个国家自然环境和气候环境的恶化暴露出来)这些数据,基于人均收入的指标,提供的仅仅是一个毕业时刻表的宽泛指示。

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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。