نتایج جستجو برای: nes

تعداد نتایج: 3235  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی 1391

در این تحقیق به بررسی انتقال هدفمند غیرخطی انرژی به وسیل? تقابل رزونانسی بین یک مدل مقطع بال صلب دو درج? آزادی و انواع مختلف چاه های غیرخطی انرژی (nes) پرداخته می شود. در حقیقت نشان داده می شود که این امکان وجود دارد که ناپایداری های نوسان دور حدی ایجاد شده توسط انرژی ورودی توسط جریان سیال به سیستم، به صورت جزئی یا کلی، بوسیل? انتقال انرژی یکطرفه از مقطع بال به nes حذف شود. مطالعات پارامتریک عد...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده ادبیات و زبانهای خارجی 1392

while performance-based language assessment has led to an increased authenticity and content validity in the practice of writing assessment, the reliability of ratings has become a major issue. research findings have shown different reactions by native english speaker (nes) and non-native english speaker (nns) teachers to students’ writings. the focus of this study is on investigating whether i...

Journal: :Applied Mathematics and Mechanics-english Edition 2022

Abstract A broadband adaptive vibration control strategy with high reliability and flexible versatility is proposed. The damping performance of nonlinear energy sink (NES) has attracted attention. However, targeted transfer may cause severe NES. Besides, it difficult to realize pure stiffness without the linear part. As a result, NES not high. low hindered its application in engineering. In add...

This study was planned to explore the capability of nanoemulsions (NEs) consisting of CapryolTM 90 and oleic acid for the delivery of rapamycin (RAP). Permeability and cytotoxicity of RAP-loaded NEs were also inspected. Pseudo-ternary phase diagrams were created with oleic acid and CapryolTM 90 (as oil phase) and four surfactants and co-surfactants at various weight ratios (Rsm). Selected NEs f...

There is considerable interest in using nano-emulsions (NEs) as delivery systems for lipophilicbioactive ingredients. In this study, the influence of G on the properties of vitamin E (VE) enriched NEsprepared using spontaneous emulsification (SE) method, were investigated. The particle size and optical clarityof the NEs depended strongly on the co-solvent presence, absence, an...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده ادبیات و زبانهای خارجی 1392

abstract i the purpose of this study was to launch a thorough investigation concerning the possibility of differing orientations to the writing proficiency construct by native and non-native english speaking teacher raters. it mainly revolved around the international english language testing system (ielts) that is widely administered and employed as a measure of general proficiency in englis...

A Nankali D Younesian, E Motieyan

Optimal Nonlinear Energy Sink (NES) is employed in vibration suppression of the beams subjected to successive moving loads in this paper. As a real application, a typical railway bridge is dynamically modeled by a single-span beam and a traveling high-speed train is simulated by a series of successive moving loads. Genetic algorithm is employed as the optimization technique and optimal paramete...

This study was planned to explore the capability of nanoemulsions (NEs) consisting of CapryolTM 90 and oleic acid for the delivery of rapamycin (RAP). Permeability and cytotoxicity of RAP-loaded NEs were also inspected. Pseudo-ternary phase diagrams were created with oleic acid and CapryolTM 90 (as oil phase) and four surfactants and co-surfactants at various weight ratios (Rsm). Selected NEs f...

Journal: :iranian journal of pharmaceutical sciences 0
mohammad mehdi mahboobian department of pharmaceutics, school of pharmacy and protein technology research center , shahid beheshti university of medical sciences, tehran, iran. seyed mohsen foroutan department of pharmaceutics, school of pharmacy and protein technology research center , shahid beheshti university of medical sciences, tehran, iran. reza aboofazeli department of pharmaceutics, school of pharmacy and protein technology research center , shahid beheshti university of medical sciences, tehran, iran.

the aim of this investigation was to design and develop nanoemulsions (nes) as novel ophthalmic delivery systems for brinzolamide (bzd). phase behavior of quaternary systems composed of triacetin and capryoltm 90 (selected oils, screened through the solubility studies), various surfactants (namely, cremophor rh 40, brij 35, labrasol and tyloxapol), transcutol p (as co-surfactant) and water a...

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