نتایج جستجو برای: life cycle impact assessment and integration

تعداد نتایج: 17180641  

2016
Morten W. Ryberg Mikołaj Owsianiak Katherine Richardson Michael Z. Hauschild

Impacts on the environment from human activities are now threatening to exceed thresholds for central Earth System processes, potentially moving the Earth System out of the Holocene state. To avoid such consequences, the concept of Planetary Boundaries was defined in 2009, and updated in 2015, for a number of processes which are essential for maintaining the Earth System in its present state. L...

Journal: :international journal of environmental research 2012
f. shams fallah h. vahidi m. pazoki f. akhavan-limudehi a.r. aslemand

escalating development of tourism and petroleum industries in small islands such as lavan-iranrequires sound solid waste management. in the present investigation, three scenarios which consist of thecombination of landfill, recycling, incineration and composting and their environmental impacts have beenevaluated for 7514 kg/day of waste generation in lavan island. for this purpose, life cycle a...

Journal: :global journal of environmental science and management 0
f. dalir department of environmental engineering, graduate faculty of environment, university of tehran, tehran, iran m. shafiepour motlagh department of environmental engineering, graduate faculty of environment, university of tehran, tehran, iran k. ashrafi department of environmental engineering, graduate faculty of environment, university of tehran, tehran, iran

in this study a pseudo comprehensive carbon footprint model for fossil fuel power plants is presented. parameters which their effects are considered in this study include: plant type, fuel type, fuel transmission type, internal consumption of the plant, degradation, site ambient condition, transmission and distribution losses. investigating internal consumption, degradation and site ambient con...

Journal: :مهندسی بیوسیستم ایران 0
سیدهاشم موسوی اول دانشجوی دکتری گروه مهندسی ماشین های کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران شاهین رفیعی استاد گروه مهندسی ماشین های کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران محمد شریفی استادیار گروه مهندسی ماشین های کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران سلیمان حسین پور استادیار گروه مهندسی ماشین های کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

the objectives of this study at the first step are to analyze energy consumption and economical profitability in canola production in mazandaran province of iran and then to investigate environmental emissions of the production using life cycle assessment methodology. at the next step, the corresponding coefficients are applied to investigate environmental indices in canola production. required...

1999
Reinout Heijungs Mark Huijbregts

A recent contribution in this journal on the application of the RAINS model for acidification in life cycle impact assessment is examined as to mathematical consistency and conceptual content. A general recipe for deriving equivalency factors for life cycle impact assessment is derived. This leads to a rejection of threshold-based impact indicators as a basis for tabulating equivalency factors ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهرکرد - دانشکده ادبیات و علوم انسانی 1391

why some learners are willing to communicate in english, concurrently others are not, has been an intensive investigation in l2 education. willingness to communicate (wtc) proposed as initiating to communicate while given a choice has recently played a crucial role in l2 learning. it was hypothesized that wtc would be associated with language learning orientations (llos) as well as social suppo...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده ادبیات و زبانهای خارجی 1390

abstract the current study set out to address the issue as to whether the implementation of portfolio assessment would give rise to iranian pre-intermediate efl learner autonomy. participants comprised 60 female in pre-intermediate level within the age range of 16-28.they were selected from among 90 language learners based on their scores on language proficiency test -key english test. then, t...

Journal: :The International Journal of Life Cycle Assessment 2018

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