偏相关
- 与 偏相关 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In order to study the grating diffractive field's characteristics of the partially polarized and coherent beams, an analytic expression of polarization degree and angular correlation of partially ploarized and coherent beams through polarized gratings is derived based on the beam coherentce-polarization matrix approach of partially coherent beams.
为了研究部分偏振部分相干光光栅衍射场的衍射特性,利用部分偏振部分相干光的光束相干-偏振矩阵,推导出了部分偏振部分相干光通过任意偏振光栅后,衍射场的偏振度及场中衍射级次角相关的一般解析表达式。
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By using "Behavior Style Questionnaire- Short Form" and "Young Child Attention Scale", the main findings are listed as follows: A.Results on the dimensions of temperament indicated that children's characteristics of temperament show high on rhythmicity, adaptability and intensity of reaction, middle on activity level, withdrawal, persistence and distractibility, low on sensory, and a little negative on quality of mood.
并采用「幼儿气质量表」与「幼儿注意力量表」收集资料,透过SPSS15.0的资料处理与分析,描述性统计、单一样本t考验以及皮尔森积差相关与多元回归分析结果显示:一、受试幼儿在气质各向度的表现特徵是反应强度大、情绪本质稍偏负向及反应阈偏低现象,其他,则活动量中等但稍偏低、规律性高、适应性高、面对新事物的反应倾向趋性,且坚持性、分神度均有偏高倾向。
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In the end, there is a brief conclusion . The conclusion of this passage mainly includes: The listed companies have obvious preference for stock right financing, and the financing order is stock right financing, the short-term debt, endogenous financing, the long-term debt, which differs from that of western countries; Financing structure is characterized by comparatively lower asset-liability rate, higher floating debt and lower long-term debt; The governance structure is irrational, and the shareholders" meeting perform practically no function. In the meanwhile, board of director structure is unreasonable, which is highly coincident with the manager layer. Board of supervisors" independent character is poor, while manager layer is lacking in restraints and supervision; The interdynamic
本文的结论:上市公司有明显的股权融资偏好,融资顺序为股权融资、短期负债、内源融资、长期负债,这与西方国家上市公司的融资顺序不同;融资结构具有资产负债率相对较低,流动负债偏高、长期负债偏低的特征;治理结构不合理,股东大会形同虚设、董事会结构不合理、董事会与经理层高度重合、监事会独立性不强、经理层缺乏约束与监督;治理结构与融资策略选择的互动关系不强;独立董事比例与资产负债率正相关,工业、公用事业与资产负债率负相关,商业与流动负债率正相关,第一大股东持股比例与流动负债率负相关,第一大股东持股比例与长期负债率正相关,执行董事比例、工业、商业与长期负债率负相关。
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No additional data for frequency tracking are need, but higher estimation accuracy and low computational complexity can be obtained. Finally, a kind of optimizing joint algorithm for symbol timing, frequency synchronization and channel estimation is proposed. The false alarm probability and miss detect probability of the symbol timing are derived. We proved that the time-frequency offset domain random sequence sliding in the frequency offset direction is orthogonal with the original random sequence, and proposed a new integer frequency offset estimation algorithm. The coarse estimation methods for fractional frequency offset both in AWGN and multipath channels are proposed too.
最后,提出了一种优化的符号同步、频偏估计和信道估计的联合算法,推导了符号同步方法的虚警概率和漏检概率,给出了随机序列在时间-频率偏移域沿频率偏移方向滑动后与原序列近似正交的证明,提出了一种新的在时间-频率偏移域沿频率偏移方向进行滑动相关估计整数频偏的方法,提出了在AWGN信道和多径信道下进行小数频偏粗估计的方法,给出了小数频偏细估计的ML估计结果和利用频域PN序列取值特性的简洁的信道估计结果。
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According to the energy conservation theory, BOM and CSIM4 were coupled. The BOM has no treatment on transmission solar radiation, which is of great importance when the model is adapted to Arctic Ocean. So the treatment was introduced to BOM. Through numerical test on different lead albedos, it was found that sea ice thickness is not so sensitive to lead albedo, which may be contribute to the lead occupies little ratio within multiyear sea ice pack. The reason of summer over-melt of arctic sea ice is the NCEP reanalysis downward solar radiation being larger than its reality. Then the arctic sea ice climate variability was simulated. Results showed that: simulated ice thickness change is in accord with the submarine investigated mean sea-ice draft changes. Simulated annually maximum ice thickness along the Eurasian continental oceans are closely related to the observed ones. The long-term mean simulated ice motion has the same features of the SSM/I derived ice motion. Sea ice extents in differential sub-regions have same trends comparing to the satellite passive-microwave data derived ones. Simulated ice concentration is closely related to the observed in the Arctic sub-regions. Sea ice flux through the Fram Strait involves ice concentration, motion and thickness. It is a composite criterion for sea ice model evaluation. The simulated ice area and volume export through the strait accord with the satellite derived or statistically reconstructed ones.(5) The simulated ice thickness climate variability and mean sea surface current of the coupled model were analyzed, results showed: the total ice volume in the Arctic Ocean has a significant decreasing trend. The volume variability is of a 10-year timescale oscillation, with two major periods of 12-13a and 18-20a. Mean ice thickness in the arctic sub-seas has different tendencies. It has an increasing trend in the Barents-Kara Sea and Baffin Bay-Labrador Sea, and decreasing in the others. The characteristic time scale of 7-10a wherein the river discharges leads the Fram Strait ice volume export is about the period that river water takes to be conveyed across the Arctic Ocean.(6) Using the simulated ice distribution in the Arctic Ocean and China precipitation, air temperature and SST in tropical key regions, the climate teleconnection were studied. Result showed: When the mean sea ice thickness is large in the central Arctic Ocean and Chukchi-Beaufort Sea , and small in the Barents-Kara Sea and Baffin Bay-Labrador Sea , the precipitation in South China, Tibetan Plateau, and the north part of Northeastern China are always smaller than normal, and v. v. When the mean ice thickness is small in CA, BC, East Siberian Sea and Greenland-Iceland-Norwegian Sea , and large in BL, The air temperature in north-eastern China, the southern of Tibetan Plateau, and Hainan Island, are always lower than normal, and v. v. In addition, when the sea ice is thick in BC and BL, the SST is larger in the middle and eastern Pacific Ocean, and is smaller in the tropical Southeastern Indian Ocean.
由于BOM没有考虑透射太阳辐射的物理过程,研究表明透射太阳辐射对北冰洋的能量收支起到重要作用,因此在BOM模式中引入了对透射太阳辐射的处理;通过对不同水道反照率的数值试验表明海冰厚度对水道反照率的敏感性不强,可能与海冰区水道面积占的比率很小有关;而模式模拟的北极海冰夏季&过度融化&主要源于NCEP再分析资料提供了偏大的太阳短波辐射;对北极海冰的气候变率进行了模拟研究,结果表明:模拟的海冰厚度变化与潜艇探测的海冰吃深度变化具有一致性;模拟和观测的亚欧大陆沿海的年内最大海冰厚度有很好的相关;模拟的海冰移速与长期平均的卫星反演的海冰移速具有相同的速度分布特征;模拟的各个海区海冰面积的变化趋势与卫星反演资料分析的结果基本一致;模拟与观测的主要海洋分区的海冰密集度具有很好的相关:弗瑞姆海峡的海冰体积和面积的输送涉及到海冰密集度、厚度和移动速度,是判断模式模拟能力的一个综合的指标,模式模拟的结果与卫星反演或重建的面积输送、体积输送具有很好的一致性;(5)分析了模拟的北极海冰厚度的气候变率及气候平均表层海流场,结果表明:北极海冰的总体积有显著减少的趋势,北极海冰总体积的变化具有10a际尺度振荡的特点,存在18-20a和12-13a两个主周期;北极海冰的平均厚度在各个海区的变化趋势不同,在巴伦支—喀拉海和巴芬湾—拉布拉多海地区海冰厚度有显著的增加趋势,而其它海区存在减少的趋势;通过对模拟的气候平均表层海流的分析表明,北极河流流量超前弗瑞姆海峡海冰流量7-10年的特征时间尺度与表层海流的气候分布存在着必然联系:(6)利用模拟结果以及中国降水、气温和热带关键区SST资料,讨论了北极各海区海冰平均厚度与中国降水、气温以及热带关键区SST的关系,结果表明:在北极中心海区和楚科奇—波弗特海海冰厚度偏大,在巴伦支—喀拉海以及巴芬湾—拉布拉多海海冰厚度偏小,则中国降水在华南地区、青藏高原和东北北部降水偏少,反之相反;在北极中心海区、东西伯利亚海、楚科奇—波弗特海以及格陵兰海海冰厚度偏小,在巴芬湾—拉布拉多海海冰厚度偏大,则在中国东北地区、高原南部地区和海南岛附近气温偏低,反之相反;另外,北极楚科奇—波弗特海和巴芬湾—拉布拉多海海冰厚度偏大时,在热带中东太平洋海温偏高,而在热带东南印度洋海温偏低。
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The Somali jet is rapidly enhanced two pentads prior to the onset of SCSSM, thus accelerating the eastward extension of the westerly over the Bay of Bengal and leading to the eastward retreat of the western Pacific subtropical high . At the same time, the rapid enhancement of SCS CEF can also result in the northward march of WPSH and the onset of SCSSM. The earlier establishment and stronger southerlies correspond to the earlier onset time of SCSSM, and vice versa. Both composite and correlation analyses show that the 150hPa Asia-Australia CEF in boreal spring has important influences on EASM.
相关分析和合成分析的结果还显示,春季150hPa亚澳越赤道气流对东亚夏季风有重要影响:当春季该气流偏弱时,北半球夏季西太平洋副高强度偏强,位置偏南偏西,南亚高压强度也偏强,这样的环流背景使江淮流域6—7月降水偏多,华南华北降水偏少;反之,当春季该气流偏强时,夏季西太副高强度偏弱,位置偏北偏东,南亚高压强度也偏弱,江淮流域夏季降水偏少,华南华北降水偏多。
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Results showed that variability coefficients of the boll number per plant were the biggest under different ecological environment.Correlative degree analysis indicated that boll weight was the leading factor restricting the boll number;lint index was one of the major factors that affected boll weight,lint percentage and seed index;seed index was the primary factor restricting lint index.Results of path analysis sho...
结果表明,不同生态环境下单株成铃的变异系数最大;关联度分析表明,铃重是制约株铃的主导因素,衣指是制约铃重、衣分及子指的主导因素,子指是制约衣指的主导因素;通径分析结果表明,株铃对籽棉产量的综合直接作用最大;偏相关分析表明,单株成铃、单铃籽棉重、衣分3个产量因素性状对产量的贡献率占总决定度的77.16%,基本上反映了产量因素的构成情况。
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We also calculate annual monsoon Intensity index and Front Location Index by averaging the indices of 18 pentads in summer. The results show that the summer rainfalls in China have tight relation not only to the intensity of Monsoon, but also to the location of Monsoon. When Monsoon is strong and in North, excessive rainfalls in North and few in South; when Monsoon is weak and in North, few in China all over; when Monsoon is strong and in South, excessive in China all over; when Monsoon is weak and in South, excessive in South and few in North.
还计算了夏季18个候平均得到的逐年季风强度和季风位置,结果表明中国夏季降水的形势不仅和季风强度密切相关,还和当年季风的位置有着紧密的联系,季风偏强偏北时,降水北多南少;季风偏弱偏北时,全国少雨;季风偏强偏南时,全国多雨;季风偏弱偏南,降水南多北少。
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The results of comprehensive evaluation indicated that there existed significant variation for the soil fertility of Guiyang tobacco-growing area.
对湖南省桂阳县烟区的345个土壤样品、9项土壤养分指标进行了测定,确定了各指标所属的隶属函数类型及其阈值,采用偏相关分析法求得各指标的权重,运用加乘法算出各土样的土壤肥力综合指标值,进而对桂阳县植烟土壤适宜性进行了综合评价。
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To research on quantitative relations between neutral aroma constituents and concentration and quality of aroma of flue-cured tobacco in Panxi tobacco-growing areas, and to offer a new and impersonality method of flue-cured tobacco quality assessment, the authors carried out partial correlation analysis, path analysis and stepwise regression analysis, and established mathematics model and studied the factors of neutral aroma constituents affecting concentration and quality of aroma of flue-cured tobacco in this paper.
为了探究攀西烤烟烟叶中性致香成分与香气质和香气量的定量关系,并为客观准确评价烟叶质量提供新方法,该文采用偏相关分析、通径分析和逐步回归的分析方法,建立数学模型,研究了影响烤烟香气质量的中性致香成分。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力