نتایج جستجو برای: 20 percent had constant returns to scale and 10 percent decreasing returns while therefore
تعداد نتایج: 18524132 فیلتر نتایج به سال:
asymmetric membranes are widely used in many industrial membrane separation processes. the major advantage of membrane filtration over the conventional process is its ability to remove a wider spectrum of particles without using any chemicals. hollow fiber configuration offer many advantages over flat-sheet or tubular membranes. the spinning process of hollow fiber may look simple, yet it is te...
the paper investigates the effects of interest rates on stock market performance by using monthly time series data for the economy of bangladesh over the period of 1991 to 2012. a wide range of econometric techniques have been employed to analyze the relationship between the interest rate and stock market return. the study reveals a stable and significant long run relationship between the varia...
In this paper we analyze the pattern of returns to capital in formal and informal manufacturing sector in Ethiopia using a rich panel dataset of formal sector manufacturing firms for the period 1996-2006 and two rounds of repeated cross-sectional data from the urban informal sector firms. Returns to capital in the informal sector are higher than that of the formal sector potentially explaining ...
Protective Role of Biochar in Different Soil Moisture for Prevent Soil Loss in Laboratory Conditions
The using of soil conditioners to water and soil conservation is essential and also, the effect study of soil moisture on the soil conservation process and its role on changing runoff, soil erosion and sediment yield is necessary for understanding and simulating the hydrologic response of soil. Therefore, the present study was carried with the aim of investigating the effect of biochar with amo...
in this paper, weak defining hyperplanes and the anchor points in dea, as an important subset of the set of extreme efficient points of the production possibility set (pps), are used to construct unobserved dmus and in the long run to improve the envelopment of all observed dmus. there has been a surge of articles on improving envelopment in recent years. what has been done first is in constant...
in this study reference as one of the five cohesive devices in the achievement of textuality in english and persian narrative/descripitive written texts is focused on and analysed . to do so , the theoretical framework elaborated by halliday and hasan (1976) and its version adapted by the writer to match the sub-types of reference in farsi are applied to the analysis of reference in english and...
In a recent randomized experiment we found mean returns to capital of 5.7 percent per month amongst Sri Lankan microenterprises, much higher than market interest rates. In this paper we show that this high average effect masks dramatically different returns by gender. While the average male microenterprise owner has returns in excess of 9 percent per month, we show here that average returns are...
while performance-based language assessment has led to an increased authenticity and content validity in the practice of writing assessment, the reliability of ratings has become a major issue. research findings have shown different reactions by native english speaker (nes) and non-native english speaker (nns) teachers to students’ writings. the focus of this study is on investigating whether i...
the world wide web becomes very popular recently and plays an influential role in english learning. by burgeoning role of source-based writing as partial fulfillment of tefl courses and vast use of the internet, lack of empirical studies to explore these areas is obvious. this study aimed to explore the effect of the amount of familiarity with the web (internet literacy) on junior english stude...
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