beta ratio 中文意思是什麼

beta ratio 解釋
比壓
  • beta : n. 1. 希臘字母第二字 [B,β]。2. 第二位的東西。3. 【天文學】β星〈星座中第二等最亮的星〉。
  • ratio : n. (pl. ratios)1. 比,比率,比值;比例;系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達;求出…的比值;使…成比例。2. 將(相片)按比例放大或縮小。
  1. Specially, based on risk - metric and factor variables, the author discusses multi - factor asset pricing model. in theoretical analysis, the author attempts to release the assumption of index ' s random walk, proves a portfolio selection model suitable for the linear index level moreover, based on assets un - exchangeable, the author brings forward asset pricing models for b - shares, h - shares and non - circulated - shares. the author also brings forward multi - factor asset pricing model based on risk - metric indices, such as coefficient of beta, standard variance, standard semi - variance, average absolute deviation, value at risk, and factor variables, such as circulated market equity, exchange ratio, short - term historical return

    在理論分析時,作者嘗試放鬆指數水平滿足隨機遊走過程的假設,推導出指數水平呈線性趨勢的資產組合選擇模型;此外,作者基於資產不可交易這一假設,提出了b股、 h股和非流通股等情形的資產定價模型,並基於系數、標準差、標準半方差、平均絕對離差和風險價值等風險度量指標以及流通市值、換手率、短期歷史收益率等因素變量提出了四因素資產定價模型。
  2. 257 asian chronic hepatitis c patients with active disease were recruited and randomly assigned in 1 : 1 ratio to receive interferon beta - 1a or placebo treatment for 12 weeks in a double - blinded manner

    研究招募了二百五十七名亞裔慢性丙型肝炎病人,以一比一的比例隨機分為兩組,分別注射干擾素beta - 1a或安慰劑,進行十二周的雙盲研究。
  3. In the production process of beta - cypermethrin, the overall yield was improved from 60 % to 93 % and the content of the final product was increased from 90 % to 95 % by optimizing technical conditions in the aspects of various starting materials, temperature control, reactant ratio, the mode of discharge, stir type, stir speed and etc

    摘要在高效氯氰菊酯的生產過程中,通過不同原料合成氯氰菊酯的選擇、溫度控制、投料比、出料方法、攪拌類型及轉速的選擇等方面的工藝探索,產品收率由60 %提高到93 % ,含量由90 %提高到95 % 。
  4. Based on 0 - d core physics model, the core parameters of low, moderate and high aspect ratio are calculated by system code. in addition, an advanced plasma configuration for fds system has been proposed, which aims at high beta, high bootstrap current and good confinement. in order to determine the feasibility of fds operation, a two - dimensional time dependent free boundary simulation code has been adopted to simulate time - scale evolution of plasma current profile and boundary position

    在建立零維堆芯物理模型基礎上,利用系統分析程序計算了堆芯物理參數,分析了fds -標準環徑比情況的先進運行模式,並對其位形演化進行了放電模擬,獲得比較滿意的結果,為fds -系統概念設計奠定了基礎。
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