Vortex Express Method for Parameter Determination Thermoelectric Materials

Porous Thermoelectric Materials

Thermoelectric materials are sometimes prepared using a sintering process in which the achievement of a high density is often one of the objectives. However, it has recently been shown that the introduction of a highly porous material is desirable in synthetic transverse thermoelements. Porosity may also be an advantage in conventional longitudinal thermoelectric modules in which a high thermal...

Determination of Optimal ValveTiming for Internal Combustion Engines Using Parameter Estimation Method

تععین پارامتر های ترانسفورماتور به منظور تشخیص خطا transformer parameter determination for the purpose of failure diagnosis

چکیده ترانسفورماتورهای قدرت ادوات گران قیمتی هستنند که نقش بسیار مهمی را در سیستم های قدرت ایفا می کنند. در سالهای اخیر روشهای مختلفی جهت تشخیص خطا و مونیتورینگ ترانسفورماتورها ارائه شده است. در این پایان نامه برخی از این روشها جهت تعیین پارامتر های ترانسفورماتور در شرایط سالم و خطاهای مختلف در محدوده ی وسیعی از فرکانس بررسی شده است. همچنین با استفاده از روش اجزای محدود و محاسبات بر پایه فرمو...

New Directions for Low-Dimensional Thermoelectric Materials

Providing a sustainable supply of energy to the world’s population will become a major societal problem for the 21st century as fossil fuel supplies decrease and world demand increases. Thermoelectric phenomena, which involve the conversion between thermal and electrical energy, and provide a method for heating and cooling materials, are expected to play an increasingly important role in meetin...

Thermoelectric Transport in Nanoscale Materials

Measurements of thermoelectric transport coefficients yield important information regarding fundamental properties of a system in addition to the information supplied from the electronic transport measurements. In this thesis we report gate dependent and temperature dependent conductance (G) and thermoelectric power (TEP) measurements made in three different basic nanomaterials: single-walled n...