نتایج جستجو برای: tph
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در این مطالعه کارایی تصفیه آبهای زیرزمینی با استفاده از فرایند انعقاد الکتریکی صورت گرفته است. نمونه های مورد نیاز از چاههای پایش در پالایشگاه نفت تهران واقع در باقر شهر فراهم گردید. اثر متغیرهای مختلفی از جمله جنس الکترود آند و کاتد (با 3 جنس آهن، آلومنیوم و استیل)، ph محلول (11-4)، دانسیته جریان (18-2)، زمان واکنش (60-2 دقیقه)، اثر هوادهی و شرایط بهره برداری (در سیستم پیوسته و ناپیوسته) بر رو...
Used oil waste is often dumped on the ground around workshop, causing soil pollution which can reduce function of soil. The most difficult contaminants in used to decompose are hydrocarbon compounds, highly toxic, polycyclic aromatic hydrocarbons (PAHs). concentration a sample determined by measuring total petroleum (TPH) concentration. This study was conducted determine germination ability Hel...
Recent studies indicate that persistent pain after tissue or nerve injury is accompanied by an enhanced net descending facilitatory drive that contributes to an amplification and spread of pain. Although 5-HT-containing neurons in the rostral ventromedial medulla (RVM) provide the major descending serotonergic projection to the spinal cord, it is not clear whether the neurotransmitter 5-HT itse...
In Caenorhabditis elegans the Toll-interleukin receptor domain adaptor protein TIR-1 via a conserved mitogen-activated protein kinase (MAPK) signaling cascade induces innate immunity and upregulates serotonin (5-HT) biosynthesis gene tph-1 in a pair of ADF chemosensory neurons in response to infection. Here, we identify transcription factors downstream of the TIR-1 signaling pathway. We show th...
The biota in the Arabian Gulf faces stress both from natural (i.e., hyper salinity and high sea surface temperature), and human (i.e., from oil-related activities) sources. The western Arabian Gulf was also impacted by world’s largest oil spill (1991 Oil Spill). However, benthic research in this region is scarce and most of the studies have been conducted only in small areas. Here, we present d...
This study aimed to determine the impact of artisanal refinery operations on physicochemical and microbiological properties soil water in Igia-Ama, Tombia Kingdom, Rivers State, Nigeria. Physicochemical parameters along with concentrations heavy metals, polyaromatic hydrocarbons (PAHs), total petroleum hydrocarbon (TPH), benzene, toluene, ethylbenzene xylene (BTEX), polychlorinated biphenyls (P...
زمینه و هدف: ذخیره نفت خام در مخازن سبب می شود مقدار زیادی لجن در کف آنها تشکیل شود که لازم است بطور مناسبی تصفیه و دفع گردند. تحقیق حاضر با هدف بررسی کارایی پراکسیدهیدروژن و فنتون در حذف کل هیدروکربن های نفتی (tph) از لجن های کف مخازن ذخیره نفت خام انجام شد. روش بررسی: در این مطالعه تجربی، غلظت های 2، 5، 10، 15، 20 و 30 درصد وزنی از محلول های پراکسیدهیدروژن و فنتون به لجن اضافه و میزان tph پس...
Abstract Using COSMIC-2 and METOP radio occultation measurements during the years 2020 2021, study presents first direct independent relationship between potential energy (E p ) in stratosphere, precipitable water vapour (PWV), tropopause heights (TPH), cold-point (CPH) over South America. The American continent comprises tropical region, Andes Mountain range, mid-latitude climates. seasonal me...
The ecotoxicological effects of oil spill from the grounded vessel MV River Princess on the intertidal benthic organisms of Sinquerim-Candolim beach at Goa were investigated. An intertidal expanse of 1 km on either side of the grounded vessel was selected to evaluate the concentration of total petroleum hydrocarbon (TPH) in the sediment and its effects on the composition, abundance and diversit...
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