نتایج جستجو برای: water quality modeling

تعداد نتایج: 1606052  

Journal: :Water 2021

In this special issue, we are able to present a selection of high-level contributions showing the manifold aspects monitoring, modeling, and management water quality. Monitoring range from cyanobacteria in using spectrophotometry via wide-area quality monitoring exploiting unmanned surface vehicles, sentinel-2 satellites for near-real-time evaluation catastrophic floods. Modeling ranges small s...

2007
Bernard Engel Dan Storm Mike White Jeff Arnold Mazdak Arabi

This paper presents a procedure for standard application of hydrologic ⁄water quality models. To date, most hydrologic ⁄water quality modeling projects and studies have not utilized formal protocols, but rather have employed ad hoc approaches. The procedure proposed is an adaptation and extension of steps identified from relevant literature including guidance provided by the U.S. Environmental ...

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

چکیده رقابت پذیری معیاری کلیدی برای ارزیابی درجه موفقیت کشورها،صنایع و بنگاهها در میدان های رقابتی سیاسی،اقتصادی و نجاری به حساب می آید.بدین معنی که هر کشور،صنعت یا بنگاهی که از توان رقابتی بالایی در بازارهای رقابتی برخوردار باشد،می توان گفت که از رقابت پذیری بالاتری برخوردار می باشد.در تحقیقات مختلف، رقابت پذیری در سه سطح ملی،صنعت و بنگاه مورد توجه قرار گرفته که در این میان سطح بنگاه از د...

Surface waters are the most important economic resource for humans which provide water for agricultural, industrial and anthropogenic activities. Surface water quality plays vital role in protecting aquatic ecosystems. Unplanned urbanization, intense agricultural activities and deforestation are positively associated with carbon, nitrogen and phosphorous related water quality parameters. Multip...

2017
Ali Harbour M. A. Maraqa

MARAQA, M. A., ALI, A. and KHAN, N., 2007. Modelling Selected Water Quality Parameters at Jebel Ali Harbour, Dubai-UAE. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 794 – 799. Gold Coast, Australia, ISSN 0749.0208 Jebel Ali Free Zone in Dubai has the largest man-made harbour in the world. Several factors may affect water quality in the harbour, in...

Journal: :international journal of civil engineering 0
f. nasirzadeh payame noor university, faculty of engineering, po box 19395-3697, tehran, iran m. khanzadi iran university of science and technology a. afshar iran university of science and technology s. howick starthclyde university

this research presents a dynamic mathematical system for modeling and simulating the quality management process in construction projects. through sets of cause and effect feedback loops, all factors that internally and externally affect the quality management process are addressed. the proposed system integrates fuzzy logic with system dynamics simulation scheme to consider the uncertainties as...

Journal: :international journal of environmental research 2014
z. kazemi n.b. hashim h. aslani z. liu p.m. craig

the johor strait is an estuarine system located on the coast of the state of johor in malaysia.the western part of johor strait is a shallow estuarine located between causeway and pulai river. ahydrodynamic model was calibrated based on the environmental fluid dynamic code (efdc) from 4th to 17th of october, 2009. in this calibration, the efdc hydrodynamic model was configured to simulate time ...

Journal: :iranian journal of environmental sciences 0
ali rnjbar jafarabadi department of environment science, faculty of natural resources and marine sciences, tarbiat modares university of tehran, iran maliheh masoodi department of environment science, gorgan university of agricultural and natural resource, iran maryam sharifiniya department of fishery science, gilan university, iran alireza riyahi bakhtiyari department of environmental sciences, faculty of natural resources and marine sciences, tarbiat modares university, noor, mazandaran, iran

evaluation of surface water quality is a complex process undertakingmultiple parameters. converting great amount of parameters into a simpler expressionand enabling easy interpretation of data are the main purposes of water quality indices.the main aim of this study is to plan effective water resources management system forkarun river by combination of ccmewqi and geographic information system ...

Journal: :پژوهش آب در کشاورزی 0

infiltration and its modeling are important in design and implementation of irrigation projects, drainage, water-resources management, soil-conservation, hydrological studies, and artificial-recharge of groundwater and are influenced by different characteristics of soil and infiltrated water including the amount of salinity and sodium. the aim of this study was to evaluate the infiltration mode...

Abstract The results of an integrated study aimed at restoring water quality in a large watershed including seven catchments in north east Iran are presented in this paper. This case study demonstrates how landscape metrics reflect direct or surrogate causes of the land use practices that are the determinants of water quality parameters. Water quality factors included EC, pH, Cl-1, HCO3-1, SO4-...

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