نتایج جستجو برای: the climatic parameters

تعداد نتایج: 16105550  

Journal: Desert 2016
A. Azareh A. Malekian A. Salajegheh Gh.R. Zehtabian N. Boroomand

Climate change is found to be the most important global issue in the 21st century, so to monitor its trend is of great importance. Atmospheric General Circulation Models because of their large scale computational grid are not able to predict climatic parameters on a point scale, so small scale methods should be adapted. Among downscaling methods, statistical methods are used as they are easy to...

Journal: :International Journal of Current Microbiology and Applied Sciences 2019

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی گرگان - دانشکده منابع طبیعی گرگان 1391

چکیده: در این تحقیق تأثیر ملاس که یکی از محصولات جانبی صنایع قند می باشد به عنوان یک افزودنی مقاومت خشک جدید در بهبود پالایش پذیری و ویژگی های فیزیکی و مکانیکی مقوای کنگره ای کهنه (occ) مورد بررسی قرار گرفته شد. بدین منظور پنج سطح ملاس( 0،5، 10، 15 و 18%) و سه سطح درجه روانی(420،400و320 میلی لیتر)به عنوان فاکتورهای متغیر در نظر گرفته شد و برای هر تیمار کاغذهای دست ساز با مساحت 2cm200 و وزن پای...

2016
Nafia Jahan Rashmi Md. Forhad Hossain Mirza Hasanuzzaman

In Bangladesh, climate change is a major concern because of its geophysical location and climate dependent agriculture. As sessile organisms, crops plants have to face difficulties often in this environmentally vulnerable country. Therefore, this study examines the seasonal trend of two climatic parameters viz. temperature (maximum and minimum) and rainfall over a period of 1983 to 2013. Beside...

Journal: :Environmental Modelling and Software 2005
Llanos Mora López Juan Mora Rafael Morales Bueno Mariano Sidrach de Cardona

A model to characterize and predict continuous time series from machine-learning techniques is proposed. This model includes the following three steps: dynamic discretization of continuous values, construction of probabilistic finite automata and prediction of new series with randomness. The first problem in most models from machine learning is that they are developed for discrete values; howev...

Journal: :Respiratory care 2014
Ignasi Garcia-Olivé Jose A Fiz Jose Sanz-Santos Carlos Martínez-Rivera Marisol Prats Juan Ruiz-Manzano

BACKGROUND Although some authors have suggested that there is some seasonal periodicity of hemoptysis, or relation to respiratory tract infections, the association of influenza or climatic parameters with hemoptysis has been poorly investigated. Our aim was to describe the relationship between influenza and climatic parameters with severe hemoptysis that required bronchial artery embolization (...

Journal: :پژوهش های جغرافیایی (منتشر نمی‏شود) 0
برومند صلاحی استادیار دانشگاه محقق اردبیلی خلیل ولیزادة کامران عضو هیئت علمی گروه جغرافیای طبیعی دانشگاه تبریز یوسف قویدل رحیمی دانشجوی دکتری اقلیم شناسی دانشگاه اصفهان

abstract in this study we have used the monthly data resulted from the calculation of temperature and precipitation for a 52-year period (1951-2003). the doubling effect of carbon dioxide ( ) on temperature and precipitation was modeled as the most important climatic parameters. the resulting hythergraph and ambrothermic models for tabriz indicate monthly increases of temperature and precipitat...

Journal: :Climate Dynamics 2022

Creating innovative ways for the identification of trends is a very vital part atmospheric studies. Different climatic locations present their unique variations, calling dynamism trend analysis. In addition to widely adopted Mann–Kendall (MK) test, new Şen’s analysis (ITA) method has been applied analyze refractivity related (atmosphere pressure—AP, vapour pressure—VP, ambient temperature—T) an...

Journal: :desert 0
gh.r. zehtabian faculty of natural resources, university of tehran, karaj, iran a. salajegheh faculty of natural resources, university of tehran, karaj, iran a. malekian faculty of natural resources, university of tehran, karaj, iran n. boroomand faculty of soil science engineering, shahid bahonar university of kerman, kerman, iran. a. azareh faculty of natural resources, university of tehran, karaj, iran

climate change is found to be the most important global issue in the 21st century, so to monitor its trend is of great importance. atmospheric general circulation models because of their large scale computational grid are not able to predict climatic parameters on a point scale, so small scale methods should be adapted. among downscaling methods, statistical methods are used as they are easy to...

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