نتایج جستجو برای: مدل ce
تعداد نتایج: 155449 فیلتر نتایج به سال:
CYCLIC VOLTAMMETRY STUDY OF Ce(IV)/Ce(III) REDOX COUPLE AND Ce(IV)-F COMPLEX IN SULFURIC ACID MEDIUM
J. G. He, Y. Li, X. X. Xue, H. Q. Ru, H. Yang, School of Material and Metallurgy, Northeastern University, Shenyang, China; X. W. Huang, National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, and Grirem Advanced Materials Co., Ltd., Beijing, China. In this paper the electrochemical behaviors of Ce(IV)/Ce(III) redox couple and Ce(IV) F co...
به طورکلی احداث سد با توجه به شرایط منطقه و مشخصات فیزیکی مخزن، باعث ایجاد تغییر در کیفیت آب مخزن و رودخانه پائین دست آن می شود. با استفاده از مدل های عددی می توان هم در مطالعات اولیه قبل از ساخت سد و هم در دوران بهره برداری از سد، کیفیت آب را بررسی کرد و کیفیت آب مصرفی را بسته به نوع مصرف پیش بینی نمود. اما لازم به ذکر است، مدل های کیفیت آب که مجموعه ای از روابط ریاضی پیچیده هستند، میتوانند مح...
Background and Objectives: There are several predictor variables for speech anxiety (SA) among students. Affective balance (AB) and social intelligence (SI) are two main factors in this field. In this study, we assess the mediating role of consequence expectation (CE) among these variables. Accordingly, this study aims to explore a model of the relationships between AB, SI, and SA mediated by C...
IntroductIon Numerous products are developed, studied and ultimately reviewed yearly by the Food and Drug Administration. It is estimated that only 5-out-of-5,000 developed compounds actually receive FDA approval.1 Throughout 2010 and 2011, a number of products have been approved for patient use. For the busy clinician, it is extremely difficult to keep up with all of the newly approved product...
Treatment Expectations For maximum benefit of NGVB per application and compliance for longterm treatment, the whitening tray should be worn at night. However, a minimum of 2 to 4 hours daily is the second option because the material is active for 4 to 10 hours.2 Less than 2 hours wastes product and may extend treatment. The length of treatment varies from patient to patient. The average is 2 to...
پیشرفتهای صنعتی و روی آوردن به کشاورزی مدرن ممکن است که به بعضی از مسائل جوامع بشری پاسخگو باشد؛ ولی عدم توجه به اصول بهرهبرداری، پسماندها، فاضلابها و رهاسازی آنها به داخل منابع آبهای شیرین میتواند نتایج جبرانناپذیری داشته باشد. امروزه، تغذیهگرایی یکی از مشکلاتی است که مخازن سدها به علت ورود آلودگیهای صنعتی و کشاورزی با آن روبرو میباشند. تغذیهگرایی فرایندی است که به سبب تجمع املاح در...
The research presented in this thesis involves the application of chiral cationic and anionic surfactants for simultaneous enantioseparation of structurally similar compounds in capillary electrophoresis (CE) and CE coupled to mass spectrometry (CE-MS). The first chapter briefly introduces the fundamentals of CE and CE-MS, emphasizing the micellar electrokinetic chromatography (MEKC) and MEKC-M...
Learning Objectives Upon the completion of this lesson, the clinician should be able to: 1. Differentiate types of respiratory symptoms (viral versus bacterial) 2. Determine appropriate treatment based on symptoms and etiology. 3. Counsel patients regarding appropriate management of coughs and colds (particularly avoidance of inappropriate antibiotic use). 4. Identify adverse effects and contra...
Upon arrival on scene the crew finds a middle aged overweight male sitting at a table in the cafeteria. The patient is conscious, alert and fidgeting anxiously. He is pale, diaphoretic, and his right hand is balled into a fist and is pressed against the left side of his chest. The patient complains of severe retro-sternal chest pain radiating to his left arm and jaw. The patient describes the p...
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