نتایج جستجو برای: معادله ipat

تعداد نتایج: 13149  

2011
Julia K. Steinberger Fridolin Krausmann

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...

جهانشاه داوودی, , شاهین روحانی, ,

2013
Liang Chen Zhifeng Yang Bin Chen

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...

2009
J. Rivoire M. Terekhov L. M. Schreiber

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 ...

Journal: :Sustainability 2023

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...

ژورنال: :نشریه دانشکده فنی 1976
رمضان وحیدی مرتضی سهرابی

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...

2005
Wolfgang Schmidt Antony Jameson

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...

2013
Joseph MD Fortunak Stephen R Byrn Brandon Dyson Zita Ekeocha Tiffany Ellison Christopher L King Amol A Kulkarni Mindy Lee Keeshaloy Thompson

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...

Journal: :Population and environment 2005
David L Carr Laurel Suter Alisson Barbieri

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...

2015
N Mason D Egan S O'Loghlen D Conway

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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