維利茨基 的英文怎麼說
中文拼音 [wéilìcíjī]
維利茨基
英文
wilitzki-
Complex carbohydates as well as certain food components such as folic acid, omega - 3 fatty acids, selenium and tryptophan are thought to decrease depression symptoms. some studies have found correlations between low fish intake in populations and high levels of depression. there is also evidence that a factor behind the growth of alzheimer ' s is the increase in diets high in saturated fat and low in vitamins and minerals
炭水化合物和一些食物成分，如葉酸omega - 3脂肪酸硒和色氨酸等，被認為可以緩解抑鬱癥一些研究還發現，經常吃海產品可以防止抑鬱癥的發生也有證據表明，阿耳茨海默癥發病率上升的其中一個原因是攝入太多含有飽和脂肪酸的食物，同時維生素和礦物質的攝入量又過少另外，缺乏氨基酸也會導致抑鬱，大腦必須利用氨基酸來製造神經遞質。This model is based on the multi - factor model given by ma yongkai and tang xiaowo who simplify markowitz ' s model for portfolio investment with the help of ross " arbitrage pricing theory. compared with the markowitz ' s mean - variance model, the new model has the following merits : 1
這個模型是在馬永開和唐小我利用馬科維茨均值-方差模型和羅斯套利定價理論導出的多因素證券組合投資決策模型的基礎上給出的。This paper studies the ways to comfotmate the models of portfolio investment combi - nation, and demonstration analysis, divided into three parts. the first part : exordium. mainly introduces the risk of portfolio investment. the second part : brings forward several kinds of investment combination model, including the traditional markowitz model, multiobjective programming and fuzzy programming. the third part : goes along with the demonstration analysis of each kind of model basted on the shanghai stock market, at the same time, appraises the superiority and inferiority with the single - parameter measurement of tangible achievement. before then, most papers discussed the static models, this paper extends the static models to the dynamic models by the means of weighted moving average and bayes estimation
本文研究了證券投資組合模型的構造方法及其實證分析，分三部分進行：第一部分，緒論，主要介紹證券投資的風險；第二部分，提出幾種投資組合模型，在傳統的馬柯維茨模型及線性規劃的基礎上，本文另外提出多目標規劃的其它解法，並把前人模糊規劃的理論應用到具體的建模中；第三部分，根據我國的滬市行情，對各種模型進行實證分析，並利用實績的單參數度量對各種模型的優劣性進行評價。" oh i feel wonderful now, absolutely wonderful, " rabinowitz said after finishing in a time of 30. 86 seconds and breaking the previous mark of 36. 19 set by austrian erwin jaskulski
「感覺實在是太爽了。 」拉比諾維茨跑完一百米后開心地說。他用了30 . 86秒跑完100米，刷新了奧地利人歐文?賈斯庫爾斯基創下的36 . 19秒的原世界紀錄。分享友人