نتایج جستجو برای: مدل hms
تعداد نتایج: 121347 فیلتر نتایج به سال:
برآورد سیلاب با عدم قطعیتهایی ناشی از تغییرات متغیرهای ورودی مدل بارش- رواناب مانند بارش، پارامترهای مدل مانند تلفات و ساختار مدل همراه است. برآورد سیلاب طراحی با در نظر گرفتن عدم قطعیتهای متغیرهای تصادفی مؤثر بر آن، یکی از مباحث مهم در طراحی سازههای هیدرولیکی است. در این تحقیق، با استفاده از مدل آماری تولید بارش (RPG)، مدل بارش-رواناب HEC-HMS و روش مونت کارلو، عدم قطعیت متغیرهای ورودی مدل ب...
عنوان: پیش بینی سیلاب حوضه آبریز قره آقاج با استفاده از فرآیند شبیه سازی بارش _ رواناب توسط مدل wm s
چکیده: سیل به عنوان یکی از مخرب ترین بلایای طبیعی همواره خسارات جانی و مالی فراوانی را به بار آورده است. آگاهی از تناوب و میزان بزرگی این پدیده طبیعی گام اساسی در مهار ، کنترل سیلاب وبرنامه ریزی صحیح جهت استفاده از این منابع ارزشمند می باشد. در حال حاضر مدل های مختلفی به منظور شبیه سازی مراحل تبدیل بارش به رواناب وجود دارد. مدل (watershed modeling system) wms از جمله مدل های جدید و جامع است که...
Early life events influence vulnerability to psychiatric illness. This has been modelled in rats and it has been demonstrated that different durations of maternal separation shape adult endocrine and behavioural stress reactivity. One system through which maternal separation may act is the locus coeruleus (LC)-norepinephrine system that regulates emotional arousal. Here we demonstrate that diff...
Heavy metals (HMs) are common components of landfill leachates and piggery wastewater, which correspond with possible applications of the anaerobic ammonium oxidation (anammox). For this reason, the study of the fate and effect of HMs on the anammox process is of utmost importance. In this work, the effect of several HMs on the specific anammox activity (SAA) was studied. For this purpose, the ...
We analyze a model of interactive unawareness introduced by Heifetz, Meier and Schipper (HMS). We consider two axiomatizations for their model, which capture different notions of validity. These axiomatizations allow us to compare the HMS approach to both the standard (S5) epistemic logic and two other approaches to unawareness: that of Fagin and Halpern and that of Modica and Rustichini. We sh...
most of the targeted heavy metals (hms) in sewage sludge ended up in solid residues after pyrolysis and gasification, such as Cu, Zn, Cr, Ni and Pb, which their residual rates were over 70%. The bioavailability of the hms in residues decreased despite their concentrations being higher compared with in sludge. The potential eco-toxicity of each HM were ceased after pyrolysis and gasification of ...
OBJECTIVE Hazmat disaster preparedness is critical, especially as Hong Kong prepares for major international events, such as the 2008 Olympic Equestrian Games. No published medical study describes the identities and quantities of hazardous materials (HMs) in Hong Kong and lists what antidotes are needed for these dangerous goods (DGs). This study describes what HMs are most common in Hong Kong ...
Heavy metals (HMs) in sewage sludge have become the crucial limiting factors for land use application. Samples were collected and analyzed from 32 waste water treatment plants (WWTPs) in the Shanxi Province, China. HM levels in sewage sludge were assessed. The multivariate statistical method principal component analysis (PCA) was applied to identify the sources of HMs in sewage sludge. HM pollu...
Hydrothermal treatment (HTT) at 200°C was applied to immobilize heavy metals (HMs) and the effect of rice husk (RH) addition was investigated based on total HMs concentration, fractionation and leaching tests. The results indicated that a synergistic effect of RH addition and HTT could be achieved on reducing the risk of HMs from medium and low risk to no risk. Metals were redistributed and tra...
BACKGROUND Patients with atopic dermatitis (AD) exhibit various symptoms, especially itching. Recently, herbal medicines (HMs) are being used in combination with antihistamines for the treatment of AD in Korea. While oral antihistamines can alleviate itching, HMs appear to exert anti-inflammatory effects with minimal side effects. However, there is little evidence regarding the effectiveness an...
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