physical variance 中文意思是什麼
physical variance
解釋
實績差異-
Besides, this paper adopts the random finite element method, uses geometric and physical mechanical parameters that are relevant to lining weight of surrounding rock, coefficient of lateral pressure, height or buried depth of vertical loading, elastic resistance coefficients of surrounding rock, elastic modulus of support structure, unit weight of concrete, thickness of the structure as well as torsional strength and compression strength of concrete and etc., as random variables, applies the monte - carlo method to sampling by computer, preliminarily evaluates the reliability of bearing capacity and stability of molded concrete lining of the xuefeng mountain tunnel, and obtains the related displacement of the lining, mean value and variance of internal force, and computed the reliability index of lining structures
此外，本文採用隨機有限元方法，將圍巖容重、側壓力系數、垂直荷載高度或埋深、圍巖的彈性抗力系數、支護結構的彈性模量、混凝土容重、結構的厚度以及混凝土的抗扭與抗壓強度等與襯砌結構有關的幾何與物理力學參數作為隨機變量，應用蒙特卡洛理論進行計算機隨機取樣，對雪峰山隧道模注混凝土襯砌的承載力與穩定性的可靠度進行了初步評估，得出了襯砌的相關位移與內力的均值和方差，並計算出了相應的襯砌結構可靠指標。 -
The results show that : ( 1 ) the greatest stress among family caregivers was related to the characteristics of the disease. ( 2 ) most family caregivers tended to adopt problem - oriented coping behavaiors. ( 3 ) regarding health status, it was recognized that social health, compared to others, was less affected by the cases. ( 4 ) in the study of the relationship between stress aspects and health status, it was found that among the four stress aspects, individual stress and environmental stress correlate with these family members ' physical, psychological and social health. ( 5 ) in the study of the relationship between coping behavior and health status, emotional - oriented coping behavior was recognized as the factor that affected these family caregivers ' physical and psychological health. ( 6 ) 56. 38 % of the variance of the health status of family caregivers can be explained by their stress aspects and coping behaviors
研究結果發現： （ 1 ）肝癌患者家屬主要照顧者最大壓力為病患疾病特性方面的壓力； （ 2 ）採用問題中心因應行為方式處理壓力為多； （ 3 ）自覺健康狀況方面，以社會健康為最佳； （ 4 ）壓力與健康狀況間的關系：四大體上壓力層面中以個人方面的壓力及環境方面的壓力透過典型變項主要影響身體方面、心理方面以及社會方面的健康狀況； （ 5 ）因應行為與健康狀況間的關系：情緒中心因應行為透過典型變主要影響身體方面、心理方面的健康； （ 6 ）壓力與因應行為對健康狀況的預測，可解釋其總變異量的56 . 38 % 。 -
This paper has studied the mean attenuation, scattering, and back scattering cross sections of groups of small rotating spheroids about characteristics of microwave scattering when their rotatory axes are oriented at random in any direction in 2d plane and 3d space respectively under the condition of normal distribution, and that those physical quantities are changed with different variance, expectation and wave lengths of incident electromagnetic wave
本文研究旋轉軸方向分別在平面內和空間中隨機取向呈正態分佈時的小旋轉橢球粒子群的平均衰減截面、平均散射截面、平均後向散射截面等微波散射特徵，以及這些物理量隨軸向分佈期望、方差及入射電磁波波長的變化。 -
Through reviewing the procession of the physical space in jingan district, investigating the several important phase of macro historical development, the article tries to resolve the out change features and interior rule about the development and variance of residential space in the urban central district with the viewpoint of system background, motivity factors, main action body, space token and so on
該文通過回顧上海市靜安區的物質空間發展過程，考察居住空間的幾個重要宏觀歷史發展階段，試圖從城市住區發展與變遷的制度背景、動力因素、行動主體、空間表徵等角度出發，解析城市中心區居住空間發展、變遷的外在變化特徵與內在規律。 -
Pca of x1, x2and x3 successions was done, and from these three eigenvector fields, a principal component that its physical meaning is clear and its variance deficiency contribution rate is large ( over 75 % ) is found. and that principal component was defined as an integrative chilling damage index
將寒害指標x _ 1 、 x _ 2 、 x _ 3序列作主要分量分析，從3個特徵向量場中找出了一個物理意義清晰、方差貢獻率大（大於75 ）的主要分量，將其定義為綜合寒害指數。
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