توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Tooth Shape Optimization of Permanent Magnet Motors Using the Reduced Basis Technique
نویسنده(ها): ،
اطلاعات انتشار: نهمین کنفرانس ملی مهندسی ساخت و تولید، سال
تعداد صفحات: ۱۱
A tooth shape optimization method for cogging torque reduction in Permanent Magnet motors is developed by using the Reduced Basis Technique (RBT) coupled by Finite Element Analysis (FEA) and Design of Experiments (DOE) methods. The primary objective of the method is to reduce the enormous number of design variables required to define the tooth shape. RBT is a weighted combination of several basis shapes. The aim of the method is to find the best combination using the weights for each tooth shape as the design variables. The experimental design of Taguchi method is used to build the approximation model and to perform optimization. This method is demonstrated on the tooth shape optimization of a 8–poles\12–slots PM motor.<\div>

۲OPTIMAL DESIGN AND FABRICATION OF AN AIR CORE LINEAR BRUSHLESS DC MOTOR
نویسنده(ها): ،
اطلاعات انتشار: اولین کنفرانس بین المللی و هفتمین کنفرانس ملی مهندسی ساخت و تولید، سال
تعداد صفحات: ۹
In this paper, design and fabrication of a specific type of linear electromotor, namely,3–phase air core Permanent Magnet Brushless DC Motor (PMBLDCM) has been considered. A new method of design optimization for maximization of thrust force in the air core linear PMBLDCM is represented. This thrust force, which is a function of electric and geometric parameters of the motor, is optimized by using the sequential quadratic programming (SQP) method. It’s shown that experimental results are in good agreement with results of design optimization.<\div>

۳Synthesis of Fe2O3@Co[Fe(CN6] nanoparticles for electrooxidation and sensitive detection of deferiprone
نویسنده(ها): ، ،
اطلاعات انتشار: سومین کنفرانس نانوساختارها، سال
تعداد صفحات: ۴
The electrocatalytic oxidation of deferiprone as an orally iron chelators was studied on a carbon paste electrode modified with nanoparticles of Fe2o3 core–NaCo[Fe(CN)6] shell (n–Fe2O3@NaCo[Fe(CN)6]) using cyclic voltammetry and chronoamperometry. Voltammetric studies represented two quasi–reversible redox transitions of Co(II)\Co(III) at lower potentials and Fe(II)\Fe(III) at higher potentials for n–Fe2o3 @ NaCo[Fe(CN)6]. In the presence of deferiprone, both anodic peak currents increased, followed by decrease in the corresponding cathodic currents.
These results indicate that this drug was oxidized on n–Fe2O3@NaCo[Fe(CN )6 which was immobilized in the carbon paste electrode via an electrocatalytic mechanism. The catalytic rate constants, the electron transfer coefficients and the diffusion coefficients involved in the electrocatalytic oxidation of the drug was reported.A sensitive and time–A sensitive and time determination procedure was developed for the analysis of the drug in both bath and flow systems, and the corresponding analytical parameters were reported.<\div>

۴Electrooxidation of dextromethorphan on a carbon nanotubes–carbon microparticles–ionic liquid nanocomposite
نویسنده(ها): ، ،
اطلاعات انتشار: سومین کنفرانس نانوساختارها، سال
تعداد صفحات: ۴
The electrooxidation of dextromethorphan on a nanocomposite constructed with carbon nanotubes–ionic liquid–carbon fine powders was investigated by cyclic voltammetry in a 100 mM phosphate buffer solution (PBS), pH 7.40. In the voltammograms, an irreversible diffusion–controlled anodic peak was appeared. The diffusion coefficient of dextromethorphan and the electron transfer coefficient and the standard rate constant of electrooxidation of this drug were found to be 3.45×10–6 cm2 s–1, 0.65 and 1.67×10–3 cm s–1, respectively. A sensitive and time–saving determination procedure was developed for the analysis of dextromethorphan, and the corresponding analytical parameters were reported. Using this method, dextromethorphan was determined with a LOD and LOQ of 8.81 and 29.36 μM in linear range of 2.5×10–4 to 3.3×10–3 M, respectively. The proposed amperometric method was successfully applied to the analysis of commercial pharmaceutical products (such as tablets, syrup and oral drop) and the results were in good agreement with the declared values.<\div>
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