نتایج جستجو برای: معادله ipat
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Resource productivity, measured as GDP output per resource input, is a widespread sustainability indicator combining economic and environmental information. Resource productivity is ubiquitous, from the IPAT identity to the analysis of dematerialization trends and policy goals. High resource productivity is interpreted as the sign of a resource-efficient, and hence more sustainable, economy. It...
This paper presents a forecast and analysis of population, economic development, energy consumption and CO2 emissions variation in China in the short- and long-term steps before 2020 with 2007 as the base year. The widely applied IPAT model, which is the basis for calculations, projections, and scenarios of greenhouse gases (GHGs) reformulated as the Kaya equation, is extended to analyze and pr...
Introduction: MRI using hyperpolarized He is an effective and powerful tool to study morphological, functional, and mechanical and other properties of lungs. The price of the He and technical difficulties of polarization and logistic, prompt to employ computer simulation to optimise the acquisition parameters and optimal usage of available gas. However, in such simulations, the whole influence ...
The digital economy has broken the physical space limit, reshaped factor input ratios, and accelerated mobility, which drives carbon reduction social sustainability. Digital enterprise agglomeration is becoming new tendency a significant spatial feature for development. This work aimed to study impact of on intensity. first proposed an extended stochastic IPAT (STIRPAT) theoretical framework re...
در این مقاله در حدود صحت دو معادله حالت در محاسبه p-v-t گازهای حقیقی در نواحی اشباع و super heat مورد بررسی قرار می گیرد . نتایج حاصل نشان می دهد که معادلات مزبور با ثابت های موجود در فواصل محدودی از درجه حرارت و فشار صادق می باشد . تا بحال ده ها معادله حالت برای محاسبه تغییرات p-v-t گازهای حقیقی پیشنهاد گردیده است که برخی از انها تنها جنبه تاریخی دارند مانند معادله van der waals(1873) و یا مع...
A combination of a f i n i t e volume d iscre t isa t ion in conjunction with carefu l ly designed d iss ipat ive terms of th i rd order, and a fourth order Runge Kutta time stepping scheme, is shown to y ie ld an e f f i c i e n t and accurate method for solving the time-dependent Euler equations in a rb i t ra ry geometric domains. Convergence to the steady state has been accelerated by the u...
Purpose: To provide a robust, efficient synthesis of the malaria drug piperaquine for potential use in resource-poor settings. Methods: We used in-process analytical technologies (IPAT; HPLC) and a program of experiments to develop a synthesis of piperaquine that avoids the presence of a toxic impurity in the API and is optimized for overall yield and operational simplicity. Results : A green-c...
What is the role of population in driving deforestation? This question was put forth as a discussion topic in the cyberseminar hosted by Population Environment Research Network (PERN) in Spring, 2003. Contributors from diverse backgrounds weighed in on the discussion, citing key factors in the population-deforestation nexus and suggesting further courses of action and research. Participants exp...
Introduction The impact of critical illness on psychological wellbeing can be severe with patients reporting high levels of anxiety & depression [1]. The psychological impact of critical illness can be long lasting, affecting both patients and their families and impacting on quality of life following hospital discharge [2]. A minority of patients will develop posttraumatic stress disorder follo...
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