نتایج جستجو برای: biological stabilization

تعداد نتایج: 512595  

Journal: :environmental health engineering and management 0
mahdi farzadkia department of environmental health engineering, iran university of medical sciences, tehran, iran mohamad hassan ehrampoush department of environmental health engineering, shahid sadoughi university of medical sciences, yazd, iran shahram sadeghi environmental health engineering, student research committee, kurdistan university of medical sciences, sanandaj, iran majid kermani department of environmental health engineering, iran university of medical sciences, tehran, iran mohammad taghi ghaneian department of environmental health engineering, shahid sadoughi university of medical sciences, yazd, iran vahid ghelmani civil engineering, manager of wastewater treatment plant in yazd, iran

background: yazd waste stabilization pond facilities consist of three stabilization pond systems, module 1, module 2 and module 3 that awsp module 1 has started its operation. the existing facilities have had several problems in their operation. the objectives of this research were to evaluate the performance of stabilization ponds in wastewater treatment of the city of yazd, due to several pro...

Journal: :journal of rangeland science 2013
somayeh naseri mohammad ali adibi seyed akbar javadi mohammad jafari mohammad zadbar

one of the ordinary methods to protect, rehabilitate, and enhance an ecosystemfunction in arid and semi-arid areas of the world is sand dune stabilization using biologicalpractices. plantation of species on the soil plays a great role in sustainable management ofthe ecosystem. this research studies the effects of cultivation of haloxylon ammodendronand atriplex canescens on physical-chemical ch...

Journal: :international archives of health sciences 0
miranzadeh m.b. mazaheri tehrani a. tavakoli z. environmental health engineering department, health faculty, kashan university of medical sciences, kashan, iran gilasi h.r. atharizadeh m.

aims: in biological wastewater treatment processes, a large amount of sludge is produced. stabilization of sludge is essential before disposal because of the risks to human health and environment. therefore, selecting an appropriate process for stabilization this sludge may efficiently decrease risks. the aim of this study was to examine the compound efficiency of the advanced fenton and ozonat...

Soil and water resources management of rivers has an important role because of direct relation withdifferent systems such as earth, life, social and people. Although the use of vegetation cover inbioengineering and biological stabilization and also soil and water resources management projects hasmany advantages, but improper methods of design and implementation cause hydraulic specificationsof ...

2011
Byron Cook Jasmin Fisher Elzbieta Krepska Nir Piterman

We describe an efficient procedure for proving stabilization of biological systems modeled as qualitative networks or genetic regulatory networks. For scalability, our procedure uses modular proof techniques, where state-space exploration is applied only locally to small pieces of the system rather than the entire system as a whole. Our procedure exploits the observation that, in practice, the ...

Journal: :Current Biology 2016
Ben J. Hardcastle Holger G. Krapp

The use of vision to coordinate behavior requires an efficient control design that stabilizes the world on the retina or directs the gaze towards salient features in the surroundings. With a level gaze, visual processing tasks are simplified and behaviorally relevant features from the visual environment can be extracted. No matter how simple or sophisticated the eye design, mechanisms have evol...

باغبانان, علیرضا, رازانی, مهدی, رمضانیفر, فرشاد, هاشم الحسینی, حمید,

Archaeological sites in desert areas are at risk for destroying and reburied with sand dunes by sand storms. One of the most important issues for archaeologist and conservators in these regions are maintenance of archaeological remains, during the excavation process and after it, There are several sand dune stabilization methods such as mechanical dune stabilization, mulch or protective screen,...

Introduction: Because of their unique properties, magnetic nanoparticles have attracted the attention of many researchers in various fields. The stabilization enzyme on functionalized magnetic nanoparticles, with the maintenance of free protein activity and optimal stability, have been developed by various surface modification techniques. This review focused on the methods for  modificatio...

2010
Karl J. Thomé-Kozmiensky

At present in Germany there are 61 plants for Mechanical(-Biological) Treatment (M(B)T) of residual wastes with a total capacity of about 6.4 million tons per year. They can be classified in four process concepts: material stream separation, mechanical-biological stabilization (with a biological drying process), mechanical-physical stabilization (with a thermal drying process) and mechanical(-b...

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