查询词典 coefficient of variation

Results The symptoms of PTSD had significant gender differences, girls scored higher than boys. Preearthquake life events obviously correlated to PTSD symptoms. PTSD total score of life events and the impact of significant demensions explained the PTSD scores 16% of the variation, 12% of the variation of reexperience, and to avoidance variation of 11%, 14% of the variation on hyper arousal.

结果 中学生PTSD症状有显著的性别差异，女生高于男生；生活事件与PTSD症状反应总分有显著相关；生活事件对PTSD总分及各维度的影响显著，解释了PTSD总分变异的16%，再体验变异的12%，逃避及麻木变异的11%，过度警觉变异的14%。

Amon g them , four polymorphic loci with inevident genetic variation made little cont ribution to genetic variation of this population and other ten polymorphic loci with evident genetic variation made great contribution to genetic variation of this population .

其中有14个酶基因座属多态，只有一个单态基因座（ME－3）。14个多态基因座中，4个基因座遗传变异小，对该天然群体的遗传变异贡献不大，其余10个基因座遗传变异丰富，对该天然群体的遗传变异贡献大。

Results］ Pass to solve the curvilinear analys is to the liquate linear , examine the 2 examples :YMDD variation stub in earlier in liver in B that had not yet any treatment sufferer, occupy 6.67%;Pulling the rice man settle the sufferer who cure to examine the 13 examples :YMDD variation stub in a year, occupying 26.00%;Pulling the rice man settles two years in treatment to examine the 25 examples :YMDD variation stub in the sufferer, occupying 50.00%, pulling the rice man settle to examine the 9 examples :YMDD variation stub with interferon in the sufferer of uniting the treatment, occupying 45.00%.

结果］通过对熔解曲线的分析，在未经任何治疗的乙肝初发患者中检出YMDD变异株2例，占6.67%；拉米夫定治疗1年的患者中检出YMDD变异株13例，占26.00%；拉米夫定治疗两年患者中检出YMDD变异株25例，占50.00%；拉米夫定和干扰素联合治疗的患者中检出YMDD变异株9例，占45.00%。

In degraded PSM matching classification, errors modification method of degraded PSM is presented and the matching tensor of every canonical scattering centers is given. In Chapter 4, the theory of wideband millimeter-wave radar target identification is introduced. It is indicated that, for HR radar target identification, description of temoral relations among features and pattern recogntion adaptive to variation of target angles are of key importance. A rule-based pattern recogniton method of sequential reasoning is proposed, which uses a series of rules to describe relations of features variation caused by target angles variation and has the advantages of adaption to unrandom variation and false probability control in classification over traditional statistical pattern recognitiop method. Feature extraction is crucial step in target identification. In range profiles identification application, features are extracted by means of range domain pre-processing algorithm, spacial and amplitude visual computation directly from range profiles and transform algorithm based on range profiles. Visual or transformed features are either sufficiently convinced or necessarily convinced and both of them are effective and robust to range profiles identification.

在第四章，首先对宽带毫米波体制背景下目标识别方法的一些特点进行了阐述并指出，在毫米波雷达目标识别中，特征之间动态关系的描述以及能适应目标姿态角变化的模式识别方法的研究乃是要解决的关键问题；进而提出了一种基于规则库的序贯推理模式识别新方法，在这种方法的研究中，主要包括序贯推理规则库的规则排列与特征选用顺序以及规则库的收敛等问题；这种方法克服了传统的统计模式识别方法特征利用效率不高、难以适应特征值的非随机性变化的缺点，把姿态角变化所引起的特征的变化用一系列规则加以表示，其优点是能适应特征值的非随机性动态变化，并能控制分类过程中的差错概率α；特征抽取是目标识别中的关键步骤，在基于目标距离像的特征抽取方法研究中，提出了距离空间域的预处理算法、距离空间域与幅度域的直观特征抽取方法以及基于目标距离像变换分析的特征抽取方法。

The character of surface radiation and energy expended over soil temperature variation is that the temperature variation at surface, 5cm depth and 10cm depth are approximately sine curve on clear and cloudy day while this way the temperature variation at 20cm depth shows small extent anti-phase variation and the temperature under 50cm is no diurnal. In contrast, the temperature at 5m, 10cm and 20cm shows linear decrease and the soil-surface temperature is concaved on rainy day.

地表辐射和能量耗散反映在土壤温度变化上的特征是晴天和阴天地表、5cm、10cm的温度变化表现为准正玄曲线，20cm深处的温度变化呈现出幅度很小的反位向变化，50cm以下地温已不存在日变化特征；雨天5cm、10cm和20cm的温度呈线性递减，地表温度表现出由降雨引起的凹陷现象。

Imamura (Ref. 1 , p. 346), a well-known seismologist, wrote as follows in 1937:" attacked with every resource at their command the various problems bearing on earthquake prediction, such as earth tiltings and earth pulsations, variation in the elements of terrestrial magnetism, variation in underground temperatures, variation in latitude, secular variation in topography, etc., but satisfactory results were not obtained".

Imamura〔参考文献26第346页〕，著名的地震学家，1937年写道∶'［委员会］利用他们能够调动的一切资源对地震预测有关的所有问题进行研究，包括地倾斜、地跳、地磁因素的变化、地下温度的变化、纬度的变化、地形学方面长期，等，但是未能获得令人满意的结果。

But significant differences were found in coefficient of variation and broad-sense heritability (H2) of the three characters: CV and H2 of self-pollinated fruiting rate were both greatest, with the variation mainly resulted from inheritance, and high inheritance potential; H2 of fertile flower rate was the least and its variation was less from inheritance; CV of average fruit weight was the least and its inheritance potential is small. Thirdly, the ratios of sweet to bitter kernel of F1 progenies in positive and reverse crosses between Katy and Taianshuixing were 18∶16 and 13∶12, and were both in agreement with a 1∶1 segregation by χ2 test, which demonstrated that the bitter kernel character of Katy was heterozygous.

但3个性状的变异系数和广义遗传力(H2)均差异很大，其中自交坐果率的变异系数(101.5%～139.1%)和广义遗传力(87.1%～91.4%)均较大，表明变异主要来自遗传效应，并且自交坐果率的遗传潜能大；有效花比率的广义遗传力最小(36.8%～49.1%)，表明其遗传效应较小；平均单果重的变异系数最小(24.0%～29.7%)，说明平均单果重的遗传潜能小；（3）凯特与泰安水杏正反交的杂种一代甜仁与苦仁的比例分别为18∶16和13∶12，经χ2检验符合1∶1的分离比例，证明控制凯特杏甜仁与苦仁这对性状的基因位点是杂合的。

Chapter 4 is the central part of this dissertation, where the bayes bilateral integrated moment is established on the base of Bayes theory, downside risk and upside potential. According to the variation coefficient which is based on the M-V approach, we substitute lower partial moment for the numerator of variation coefficient, and use higher partial moment as the substitute of the denominator, then we got bilateral integrated moment. Subsequently, through Bayes method we can absorb new information, revise the return distribution from transcendental distribution to posterior distribution, so we got bayes bilateral integrated moment.

第四章是本文的核心部分，在简要介绍Bayes理论、下方风险和上行潜能的基础上，仿照来源于Markowitz的均值——方差理论的变异系数方法，以下偏矩取代其分子部分，以上行潜能取代其分母部分，设计了双侧综合矩方法，接着再引入Bayes方法，吸纳新信息，采用后验概率，设计了Bayes双侧综合矩方法，并在理论上说明了新方法的优越性。

Angular spectral is spectral value map formed by estimating semblable coefficients of fast and slow shear wave or the variation of amplitude ratio of fast and slow shear wave with times and angles at a specified space point based on semblable theory of fast and slow shear wave, the angle value of this space point at a given time can be got by picking the maximum of angular spectral; the study reveals that fast and slow shear wave with different polarization direction should be separated using different rotation formula, eight formulas of separating fast and slow shear wave using clockwise rotation and counterclockwise rotation have been derived, and gained energy assignment rule and phase coincidence rule, in real data estimation, the rotation formula used for separating fast and slow shear wave can be uniquely determined on the two discriminating rules. On the basis of semblable theory of fast and slow shear wave, the delay time corresponding to the maximum of semblable coefficients at a specified point in a given time window is the delay time of fast and slow shear wave, delay time section of fast and slow shear wave can be got by moving space point and smoothing time window. The vertical variation values of delay time of fast and slow shear wave reflect the effect degree of vertical fractured reservoir on fast and slow shear wave which is defined as anisotropic coefficient, and section map of anisotropic coefficient can be obtained.

角度谱就是利用快慢横波的相似性原理，在某一空间点求出快慢横波的相似系数或快慢横波的振幅比值随着时间和角度的变化而形成的谱值图，拾取其极大值就得到该空间点某一时间的角度值；在研究中发现分离不同偏振方向的快慢横波应该采用不同的旋转公式，推导出了利用顺时针旋转和逆时针旋转分离快慢横波的八个公式，并给出了能量分配准则和相位一致性准则两个判别准则，在实际计算中利用这两个判别准则能唯一地确定分离快慢横波的旋转公式；根据快慢横波的相似性原理，在某一给定点和给定时窗内最大相似系数对应的延迟时间就是快慢横波的延迟时间，随着空间点的移动和时窗的滑动就可以得到快慢横波延迟时间的剖面图；快慢横波延迟时间与慢横波传播时间的比值定义为裂缝密度，并求出了裂缝密度剖面图；快慢横波延迟时间纵向上的变化值的大小反映了纵向上裂隙层对快慢横波影响的大小，定义为各向异性系数，并求出了各向异性系数的剖面图。

Study shows that,pH smallest coefficient of variation was 12.95%,coefficient of variation of soil available phosphorus was the largest,varia...

研究表明，pH的变异系数最小为12.95%，土壤有效磷的变异系数最大，变异值达到了122.18%；经克里金插值分析，研究区土壤养分的空间相关性减弱，朝均一化发展，这说明了红花套镇土地养分变化受人为因素影响较大，当地的土壤适合并已形成大面积的发展种养殖业，传统的稻、麦、棉种植数量和产量都与红花套镇的人平纯收负相关，对当地人平纯收贡献最大的是柑桔总产，相关系数分别为0.822，0.966，土地利用效率最大的是水产品养殖，相关系数分别为-0.760，0.870。

Putt your way through 36 fun-filled holes of minigolf on 3D designed courses with elevated greens, bunkers, bridges and water hazards, among other crazy obstacles.

您的推杆方式，通过36个有趣的填孔迷你的三维设计的课程，以提升绿党，掩体，桥梁和水的危害，除其他疯狂的障碍。

Some participles can be used either as attributes or as predicatives.

有些分词既可当定语用，也可当表语用。