نتایج جستجو برای: geotextiles

تعداد نتایج: 197  

Journal: :Water 2023

Climate change and human actions will exacerbate eutrophication cases in inland waters. By external or internal inputs, there be an increase nutrient concentrations those systems worldwide. Those nutrients bring faster trophic changes to waters possible health recreational advisories. A novel approach using a floating filtration system, silt curtain, geotextiles (woven non-woven) is under inves...

Journal: :Applied sciences 2023

Geosynthetic materials (i.e., geogrids, geotextiles and other geocomposites) act as an interlayer system are widely used in construction applications. In pavement structures, geosynthetic layers provide potential benefits such reinforcement, reflective cracking mitigation, increased fatigue life, improved drainage filtering. However, few studies have addressed the installation practices of geos...

Journal: :Remote Sensing 2023

Global warming has accelerated during the past decades, causing a dramatic shrinking of glaciers across globe. So far, attempts to counterbalance glacial melt have proven be inadequate and are mostly limited few landscapes only. In present study, scientific glacier protection experiment was conducted at Dagu Glacier site. Specifically, study site No. 17, situated 4830 m a.s.l. The involved deli...

Journal: :Coatings 2021

Linseed flax is a multipurpose crop. It cultivated for its seeds and particularly oil. The main contributors this crop are Canada, France Belgium. In general, straws of linseed buried in the fields or burnt. However, these solutions not good practices environment from an economical point view. study, (six batches total) with different dew retting durations harvesting techniques were studied to ...

Journal: :Sustainability 2023

Enhancing the use of natural fibre for geotechnical purposes has attracted greater attention in past decade, mainly because tangible benefits that this green approach would bring to our sustainable infrastructure developments. While topic been subjected often sceptical review or discussions, they usually focus on narrow aspects such as soil reinforcement, resulting a lack thorough assessment ov...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده کشاورزی 1386

منشأ بیش از 80 درصد (یا به عقیده بعضی 90 درصد) مشکلات درختان فضای سبز به مسایل بستر ریشه این گیاهان بر-می گردد. در محیط های شهری گسترش سیستم ریشه ای درختان به موازات رشد قسمت هوایی، صورت نمی گیرد و اغلب به دلیل محدودیت ها و مسایل خاک در دسترس گیاه، رشد ریشه ها محدود می شود. وجود شرایط بد بستر و استفاده از خاکهای فقیر در فضای سبز باعث مشکلات تغذیه ای بارز در درختان فضای سبز اصفهان شده است. به دل...

Journal: :تحقیقات آب و خاک ایران 0
احسان قانع دانشجوی کارشناسی ارشد آبیاری و زهکشی گروه مهندسی آب دانشکدة علوم کشاورزی دانشگاه گیلان مریم نوابیان استادیار گروه مهندسی آب دانشکدة علوم کشاورزی دانشگاه گیلان مهدی اسمعیلی ورکی استادیار گروه مهندسی آب دانشکدة علوم کشاورزی دانشگاه گیلان امیر ملک پور اسطلکی استادیار گروه مهندسی آب دانشکدة علوم کشاورزی دانشگاه گیلان

drain envelopes play significant roles in the performance of drainage systems due to theirreduction in letting sediments into the drainpipes and also because of an increase in thehydraulic conductivity of soil around the drainpipes. throughout the present research, theeffect of a one 1000 hour flow on dual envelopes consisting of geotextile as a means ofimproving the hydraulic gradient and rice...

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