نتایج جستجو برای: the long period natural
تعداد نتایج: 16242217 فیلتر نتایج به سال:
G. Rego*, R. Falate, H. J. Kalinowski, J. L. Fabris, P. V. S. Marques, H. M. Salgado, J. L. Santos Escola Superior de Tecnologia e Gestão, Instituto Politécnico de Viana do Castelo, Av. do Atlântico, 4900-348 Viana do Castelo, Portugal. Unidade de Optoelectrónica e Sistemas Electrónicos, INESC-Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal. Centro Federal de Educação Tecnológica do P...
Context. Pieces of empirical evidence suggest the existence a period-age relation for long-period variables (LPVs). Yet, this property has hardly been studied on theoretical grounds thus far. Aims. We aim to examine using results from recent nonlinear pulsation calculations. Methods. combined isochrone models with periods simulate distribution fundamental mode LPV pulsators, which include Miras...
الملخّص الحنین إلی الوطن، کان من الموضوعات الأساسیّه منذ أزمنه قدیمه فی الأدب العربی. فی العصور الماضیه کان یبین الشعراء تذکاراتهم الجیّده، و الحنین إلی الحبیبه ، و القبیله، و الأطلال و الدمن بتحسّر فی أشعارهم. توجد نماذج منها فی أشعار إمرء القیس و عنتره و... . راج هذا النوع من الحنین فی أشعار الشعراء فی العصر الأموی و العباسی کثیراً بسبب الفتوحات و الهجره. نحن شاهدنا آثاراَ کثیره کـ«الحنین إلی الأو...
run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...
eighteen kilometers long coastal stretch from the new mangalore port in the north totalapadi in the south has been studied in order to understand shoreline changes and erosion/ accretion patterns that have taken place due to the natural processes and anthropogenic activities. shoreline changes and quantification of beach erosion/accretion were made using the survey of india topomap, multidated ...
in recent years many researchers have been focused on interaction of small molecules with dna. dna is generally the primary intracellular of anticancer drugs, so the interaction between small molecules and dna can cause dna damage in cancer cells, blocking the division of cancer cells and resulting in cell death. the flavonoids are a large group of polyphenolic natural products that are widely ...
Ammodendron persicum (Bunge & Boiss.)is a desert shrub specie which grows on some sand dunes and sandy areas of South Khorasan and Sistan-va-Baluchestan provinces in east of Iran. Low distribution and narrow ecological range have put this species under threat. In order to evaluate the possibility of long-term preservation of A. persicum seeds in cryogenic conditions (-196°C), the seeds of speci...
iran with 2500 years ancient culture has been the witness of many changes during the history.the natural context of these habitats has been the victim of some changes during the years, which have roots in people beliefs in each period. but the point which we understand by studding the context of different cultures in iran is, despite the changes in dominions and religions along the history iran...
Considering that the improvement of energy efficiency and the resulting rebound effect in the literature of energy economics is very important, hence the present paper uses the ARDL approach to estimate the direct rebound effect of the natural gas consumption in the residential sector in Iran. For this purpose, data from the period of 1986-2016 and the methodology based on the estimation of nat...
background there is limited data on the natural history of autoimmune hepatitis (aih) and on the long-term follow-up of aih patients who have been referred for regular medical attention. objectives we evaluated the clinical presentation and natural history of aih in a large cohort of type i aih patients from iran. patients and methods between 1997 and 2008, 102 patients were enrolled in the stu...
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