نتایج جستجو برای: physical contamination

تعداد نتایج: 715102  

Journal: :Journal of animal science 1999
R H Bondurant

Inflammation of the reproductive tract of a cow occurs when the physical and functional barriers to contamination are breached or specific infection occurs. Commonly, contamination occurs at parturition and to a lesser extent at estrus. Uterine contamination following calving is common, but most healthy cows are able to clear the uterus of bacteria in the first 2 to 3 wk after calving. Persiste...

2015
Pascaline Hayoun

Submitted for the DFD15 Meeting of The American Physical Society Thin liquid film in polymer tubing : dynamics and dewetting in partial wetting condition PASCALINE HAYOUN, Soft Matter Sciences and Engineering, ESPCI ParisTech, France, ALBAN LETAILLEUR, Composites and Coatings Department, Saint-Gobain Research, France, JÉRÉMIE TEISSEIRE, Glass Surface and Interface, Saint-Gobain/CNRS, France, EM...

Journal: :Sustainability 2023

This paper aims to investigate the issue of sandy soil contamination by oil hydrocarbons. Laboratory procedures used study conditionally pure and contaminated sands include grain-size measurements evaluation physical-mechanical hydrophysical properties. The results analysis sand samples using visual microscopic studies sieve show that, unlike in sands, samples, surface mineral particles is cove...

Journal: :Environmental pollution 2012
Jes Jessen Rasmussen Peter Wiberg-Larsen Annette Baattrup-Pedersen Nikolai Friberg Brian Kronvang

Agricultural pesticides continue to impair surface water ecosystems, although there are few assessments of interactions with other modifications such as fine sediment and physical alteration for flood drainage. We, therefore, surveyed pesticide contamination and macroinvertebrates in 14 streams along a gradient of expected pesticide exposure using a paired-reach approach to differentiate effect...

Journal: :Journal on internet of things 2023

Rainwater harvesting (RWH) systems have been the source of domestic water for many years and still becoming essential in communities developing countries. However, due to various reasons, there are several sources contamination rainwater cistern systems. Dissolved chemicals from roofing, storage, conveyance materials, together with suspended particulate matter airborne, examples contamination. ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم بهزیستی و توانبخشی 1376

جهت بررسی تاثیر فعالیتهای گروهی کاردرمانی ( گروههای ورزشی ‏‎physical exercise group‎‏ ، و گروههای بحث ‏‎discussion group‎‏ ) بر کاهش میزان افسردگی معتادین مرکز بازپروری تهران، معتادینی که در ده روز متوالی در مرکز بازپروری فوق پذیرش شدند. با آزمون سنجش افسردگی بک ‏‎beck depression scale‎‏ مورد ارزیابی قرار گرفتند و تعداد 60 نفر از آنها که در آزمون فوق نمره بالاتر از 15 را کسب نمودند براساس ویژگی...

Journal: :thrita 0
mohammad mahdi zamani students' scientific research center, tehran university of medical sciences, tehran, ir iran; department of anesthesiology and critical care, tehran university of medical sciences, tehran, ir iran malihe fallahpour environment faculty, tehran university of medical sciences, tehran, ir iran golnaz yousefi harvani students' scientific research center, tehran university of medical sciences, tehran, ir iran samaneh khodi aghmiuni students' scientific research center, tehran university of medical sciences, tehran, ir iran mahsa zamani department of management, payame noor university, karaj, ir iran dariush minai tehrani faculty of biological sciences, shahid beheshti university of medical sciences, tehran, ir iran

results the soil was largely composed of silt and clay (silt:41 - 42%, clay: 40 - 43%, sand: 15 - 18%). the average moisture content of the saturated soil was 12.96%,; average electricity conductivity was 18.64 dsm-1; average ph of the paste was 8.36; and average percentage of organic carbon was 0.19%. result of the laboratory analysis reported the average content of total nitrogen as 0.026%, p...

Journal: :Arhiv za higijenu rada i toksikologiju 2013
Marko Šoštarić Branko Petrinec Dinko Babić

This paper addresses the noticeable increase of 137Cs activity concentrations in soil and fallout in the area surrounding Zagreb (Croatia) that occurred at the time of the 2011 Fukushima accident. This topic is important for public health as 137Cs is highly toxic due to its long half-life of radioactive decay and chemical similarity to potassium. 137Cs concentrations in fallout were much greate...

2007
R. BACHNAK

Data collection in shallow water areas presents several challenges to the scientist. In addition to being redundant and time consuming, this task when performed manually has a high probability of disturbing the test area. Obstacles that are encountered in such environments include difficulty in covering large territories and the presence of inaccessible areas due to a variety of reasons, such a...

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