负

Chapter 5, we get shaperupper and lower bounds of perron root of the matrix by the perron root of A2 undersome conditions. Some examples are given to show the new estimation method iseffective.

第五章借助已有的非负矩阵A 的Perron根的结果，通过对A2的Perron 根估计，得到了非负矩阵A 的perron 根的更优的上下界。

For understanding the phase and transfer properties of optical wave propagating through negative refractive index medium layer, the relations between negative refractive index, the value and direction of wave vector k, the coordinates and the phase have been investigated intensively.

针对在理解负折射率材料中光波的传播特性时相位的特殊性质，详细分析推证了负折射率介质中折射率、波矢k的大小和方向、空间坐标系以及波相相位互之间的关系。

To properly explore the photoreceptor for the negative phototropism in rice (Oryza sativa L.) root, lights with different wavelengths were applied to investigate the effect of light quality on phototropic response. The negative phototropic bending could be induced prominently by blue/UV light, while not be induced by red and far-red light.

为了研究水稻根负向光性的光受体，观察了光质对稻根的负向光性效应，用紫外－可见分光光度计测定了水稻根冠浸提液的吸收光谱，并对根冠中的蛋白质进行了SDS-PAGE电泳分析。

And based on the analysis on the relationship of the positive and the negative sequence impedance,also the positive and negative fault component current under simple and duplicate fault conditions,a cross-country fault identifier is proposed in this paper.

同时通过对线路发生单纯性故障与跨线故障情况下的正、负序故障分量阻抗关系和正、负序故障分量电流幅值关系的分析，提出了一种判别电力系统发生跨线故障的判别元件。

Based on the analysis on the relationship of the positive and the negative sequence impedance, also the positive and negative fault component current under simple and duplicate fault conditions, a cross-country fault identifier is proposed.

通过对线路发生单纯性故障与跨线故障情况下的正、负序故障分量阻抗关系和正、负序故障分量电流幅值关系的分析，提出了一种判别电力系统发生跨线故障的判别元件。

Under the circumstance of simple fault on double circuit transmission lines, the positive-sequence impedance is equal to the negative-sequence impedance, and the positive fault component current is equal to or greater than the negative circuit.

文中通过对线路发生简单故障与跨线故障情况下的正、负序故障分量阻抗关系和正、负序故障分量电流幅值关系的分析，提出了一种判别电力系统发生跨线故障的判别元件。

Since the number of trips is a non-negative integer, truncated, and of endogenous stratification, this study empirically analyzes its recreational benefits by the On-site Poisson and truncated negative binomial with endogenous stratification of the Travel Cost Method. Besides, this study adopts TNBES to see how the number of trips disperse and takes the consumer surplus to assess benefits. As to visitors' valuation, this research uses the ordered probit to do empirical analysis and then divides all satisfaction factors by the factor analysis and cluster analysis into four factors and two clusters, which then are taken as explanatory variables.

考量旅游次数为非负整数、截断、内生分层等特质，本研究在游憩效益方面，采旅游成本法中的现场波松(On-site Poisson)、截断式内生分层负二项(Truncated Negtive Binomial with Endogenous Stratification， TNBES)模型做实证分析，并於TNBES模型检定旅游次数之扩散情形，效益之评估采消费者剩余为计算标准；在游客评价方面，采次序波比模型做实证分析，并将游客对科博馆各项因素满意度以因素分析、集群分析，区分为四大因素构面与二大集群，纳入游客评价为解释变数，并探讨消费者剩余对游客评价之影响。

The results show that, when taking into account the contributions of negative energy projector operators, the BS formalism can yield form factors which are suitable for the measured semileptonic branching ratios, and the lighter the final state pseudoscalar is the more important role the negative energy would.

结果表明：当考虑负能投影算子的贡献时，BS框架能够给出合适的形状因子及与实验值符合的半轻子衰变分支比；赝标介子越轻，负能投影算子的贡献越重要。

In this study, the pyrites have the lowest REE concentration, high negative Eu and Ce anomaly.

其中，黄铁矿表现为最低的稀土总量、明显的Eu负异常和较明显的Ce负异常，这反映了流体的稀土元素地球化学特征。

"Is not only a city of Canton, in the case in October in Jiangsu and Zhejiang have emerged in industrial electricity consumption in a negative situation, but electricity demand so strong demand have emerged in Canton negative growth Note the fourth quarter of the country's electricity supply situation is not optimistic, and look forward to the fourth quarter for the warming of the thermal power industry enterprises can only continue over the winter."

"广州市不仅仅是一个个例，在10月份江苏与浙江都出现了工业用电量为负的情况，但是对于电力需求如此强劲的广州都出现了需求的负增长，说明第四季度全国的供电形势都不容乐观，而对于期待第四季度行业转暖的火电企业而言只能继续过冬。"

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。