نتایج جستجو برای: resource use efficiency

تعداد نتایج: 2206630  

2016
Helena Kahiluoto Janne Kaseva

Efficiency in the use of resources stream-lined for expected conditions could lead to reduced system diversity and consequently endanger resilience. We tested the hypothesis of a trade-off between farm resource-use efficiency and land-use diversity. We applied stochastic frontier production models to assess the dependence of resource-use-efficiency on land-use diversity as illustrated by the Sh...

Journal: :بوم شناسی کشاورزی 0
علیرضا کوچکی مهدی نصیری محلاتی حامد منصوری روح اله مرادی

increasing resource use efficiency is one of the important ways to enhance agricultural productions and reduce environmental hazards. for this purpose, improvement of n use efficiency is an effective approach. nitrogen losses not only occur in field but also in the processing course. the objective of this study was to calculate nitrogen losses and efficiency during production to consumption for...

2002
Dan Binkley Jose Luiz Stape Michael G. Ryan

The growth of forests can be described as a function of the supply of resources, the proportion of these resources captured by trees, and the efficiency with which trees use these resources to fix carbon dioxide. This function can be modified to explain wood production by subtracting the allocation of carbon (C) to respiration and other tissues. At the scale of leaves and seconds, rates of net ...

2016
Chongfeng Ren Ruihuan Li

This paper presents an extended two-stage data envelopment analysis (DEA) method for analyzing water resource use efficiency (WRUE) and related WRUE issues, which was developed by introducing regional water resource metabolic theory into the two-stage DEA method. It has the following advantages: (1) it has the ability to reflect the inner difference and connection of the regional water resource...

Journal: :The Proceedings of the Nutrition Society 2010
Martin A J Parry Malcolm J Hawkesford

Food production and security will be a major issue for supplying an increasing world population. The problem will almost certainly be exacerbated by climate change. There is a projected need to double food production by 2050. In recent times, the trend has been for incremental modest yield increases for most crops. There is an urgent need to develop integrated and sustainable approaches that wi...

Journal: :journal of advances in medical education and professionalism 0
somayeh delavari 1department of medical education, school of medical and center for educational research in medical sciences(cerms), iran university of medical sciences, tehran, iran; 2student research committee, shiraz university of medical sciences, shiraz, iran; rita rezaee quality improvement in clinical education, research center, education development center, shiraz university of medical sciences, shiraz, iran; nahid hatam medical management and information school, shiraz university of medical sciences, shiraz, iran; sajad delavari department of health economics and management, school of public health, tehran university of medical sciences, tehran, iran

introduction: efficiency evaluation of universities and faculties is one of the tools that help managers to identify the departments’ strengths and weakness. the main objective of the present research was to measure and compare the technical efficiency of shiraz school of medicine departments using data envelopment analysis (dea) technique. methods: this cross-sectional and retrospective study ...

A.B. Mohammed A.F. Ayanlere Muhammed Lawal U. Ibrahim

The study assessed economic of maize production in Ogori/Magongo local government area of Kogi State. To this end, effort was made to examine the socio economic characteristics of the maize farmers, determine the resource use efficiency, problems as well as profitability of maize production in the area. To achieve the objectives of this study 48 maize farmers where randomly selected from 5 ward...

Journal: :Current Journal of Applied Science and Technology 2020

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