نتایج جستجو برای: natural resources materials

تعداد نتایج: 1125639  

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
کوروش روستا استادیار گروه ترویج و آموزش کشاورزی دانشگاه آزاد اسلامی واحد بیرجند محمد حاجی آبادی کارشناس ارشد ادارة کل منابع طبیعی استان خراسان جنوبی

the purpose of this present study is recognizing suitable extension methods and techniques influencing utilize knowledge, attitude and skills of natural resources perimeter sustainable management of natural resources. in this research sustainable management of natures resources is to struggle for prevention of changing renewable nature resources to lands agricultural, prevention of use more fro...

2002
Marco Boscolo Ramiro Molina Robert Wade Elinor Ostrom Daniel Bromley

In rural areas of developing countries, farming systems tend to be household-based. These household production systems are also highly integrated with land-based natural resources such as forests, range areas and pasture lands. Households depend on these resources for fuels, animal food, building materials, fruits and medicines, and often these resources have ownership and control structures th...

F. Narimani, M. Kharamesh

Zeolites due to their structures can be used as molecular sieves for purification of materials and solutions. Zeolites with PHI and SOD structure are so common and applicable for this purpose. Hydroxy sodalite and phillipsite are the more abundant members of zeolites which display good selectivity for very small molecules and some ions such as Sr, Pb, Zn, Cu and Rb. There is not any pure natura...

Reza Pourimani Zahra Nemati

The activity concentrations of 235U, 232Th, 226Ra, 40K and 137Cs in ground and surface of drinking water resources in Iranian city of Arak were determined by gamma ray spectrometry with aHPGe detector setup, coaxial p type and 8192 channels MCA. The water samples differed in radioactivity content depending on their origin and place. In the ...

2017
Vincenzo Gente Floriana La Marca

Hazardous waste management should fulfil the following three main goals: (i) to protect human health and the environment, (ii) to reduce waste while conserving energy and natural resources and (iii) to reduce or eliminate the volume of waste to dispose of. The last two of these goals may derive from recycling, which aims at reducing raw materials and energy consumption and decreasing the volume...

Journal: :international journal of agricultural management and development 2011
michael g. kanyi tom vandenbosch fredrick u. ngesa joash k. kibett george muthaa

the farmers of the future (fof) initiative implemented a programme of integrating natural resources management in the basic education curriculum. the purpose of the study was to document activities and determine the effects of fof programme on primary school learners’ perceptions towards natural resources management by comparing learners involved in the fof programme and those not involved. fur...

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