murthy 中文意思是什麼

Because of these insufficiency, this paper described the mechanism and discipline of technology diffusion and empirical analysis about it based on the study of the basic conception, model and mechanism and three perfect mathematic models such as bass model, logistic model and steffens - murthy model. this paper set up four economic mathematic models as follows

本文在充分分析技術創新擴散的基本概念、基本模式、基本機制以及借鑒技術創新擴散研究中相當成熟的三個模型： bass模型、 logistic模型和steffens - murthy模型的基礎上，進一步從定量分析的角度對技術創新擴散的機理和規律進行了探討，並進行了相關的實證分析。

First, this paper gives an introduction of some methods of unequal probability sampling, their estimators and variance estimators, including sampling with pps with replacement, methods of sampling without replacement suggested by brewer, durbin, sampford, des raj, murthy, rao - hartley - cochran. then, at the basis of rao and bayless ' s study, we consider that population can be splited two random subpopulations, which are respectively drawn from different infinite super - populations, and compare the stabilities of estimators of the methods that given above. we find that the minor difference between two super - populations has great effect on the efficiency of the estimators for the population with moderately large coefficient of variation ( c. v. )

本文首先從理論上介紹了若干種不等概率抽樣方法，它們的估計量、估計量的方差及其估計，其中包括有放回ppz及pps抽樣，不放回不等概率抽樣中的brewer 、 durbin 、 sampford 、 desraj ， murthy 、 rao - hartley - cochran等人的方法；其次，在rao和bayless兩人就樣本單元數n = 2的情形對上述抽樣方法進行比較的基礎上，將總體隨機地分成兩個子總體，視每個子總體取自不同的線性超總體，在文中，我們利用計算機實現隨機分組，並通過畫圖比較各方法估計量的穩定性，結果表明，對變異系數c . v . （ x ）較大的總體而言，兩個超總體之間的微小差異將對估計量的穩定性產生很大的影響，從而說明rao和bayless的比較結果還不夠完善。

Aruna basu, murthy u, rodeck u, et al. presence of tumor associated antigens in epidermal growth facter receptors from different human carcinomus cancer res, 1987, 47 : 2531

賈心善，赫明昌，張麗紅，等. 145例肺癌患者及癌旁組織癌胚抗原的腫瘤標記研究.中華病理學雜志， 1988 ， 17 ： 173