Passive phase-change thermal spreaders such as vapor chambers have been widely employed to spread the heat from small-scale high-flux heat sources to larger areas. In the present work, a numerical model for ultra-thin vapor chambers has been developed which is suitable for reliable predictions of the operation at high heat fluxes and small scales. The effects of boiling in the wick structure on...

Drying of solid particles is generally divided into three periods: a short initial heating period, a constant drying rate period, and a falling drying rate period. Drying in a fixed under various drying conditions was experimentally studied. The main goals of the measurements were to calculate the heat transfer coefficient based on the measured values, and to evaluate the validity of the consta...

– We present results of all-electron electronic structure calculations for the recently discovered d electron heavy fermion compound LiV2O4. The augmented spherical wave calculations are based on density functional theory within the local density approximation. The electronic properties near the Fermi energy originate almost exclusively from V 3d t2g states, which fall into two equally occupied...

at early period of ghobad’s reign, sassanid king (486-531ad), an important movement occurred, headed by mazdak, for several social, economic and political reasons so that the king supported it in order to weaken the position of great figures and clergymen as well. naturally, important people opposed the given movement and dethroned ghobad king from power and he managed to resume his reign again...

The research analyses the essence and relationships between the variables in the context of light and architecture, and it aims to develop the knowledge and design based on the light and recognition of the space, an effort was made to analyze the role of light on quality of the Iranian architecture and three samples of the most precious mosques were selected as the instances of this phenomenon,...

New single crystals of R2PdIn8 (R = Pr, Ce) and R2RhIn8 compounds have been synthesized by solution growth from In flux and studied with respect to structure and electronic properties. Pr2RhIn8 exhibits van Vleck paramagnetism and strong magnetocrystalline anisotropy attributed to a crystal-field effect on the Pr ion. Ce2PdIn8 compound is paramagnetic down to 0.7 K, superconductivity below 0.7 ...

Controlling nuclear positioning within cells is crucial for many cellular processes including cell division, polarity, and motility in unicellular and multicellular organisms. Pronuclear migration, during which male and female pronuclei migrate toward the center of the zygote, is a key step for sexual reproduction and embryogenesis (Reinsch and Gönczy, 1998). In zygotes of most species, includi...

Dr. Parviz Dabiri (1921–2012) was a distinguished professor of pathology at Isfahan University of Medical Sciences in Iran and an in uential mentor who devoted most of his fruitful life to the promotion of science and culture. He passed away, at age 91, on July 3, 2012 in Isfahan. Professor Dabiri was born in Tehran to an educated family. His father, Seyed Mehdi Agha was a senior of cial of the...

In this paper, the system of language and architecture has been studied in three levels of elemental, structural and semantic in cases of traditional and modern mosques in Iran through the method of analyzing the content of texts and in a conceptual model. Then, in a comparative method, the common patterns of these systems have been explained at all three levels. The common features at the elem...