نتایج جستجو برای: monthly data including ph

تعداد نتایج: 3257198  

2002
G. Dennis Shanks Simon I. Hay David I. Stern Kimutai Biomndo Robert W. Snow

Recent epidemics of Plasmodium falciparum malaria have been observed in high-altitude areas of East Africa. Increased malaria incidence in these areas of unstable malaria transmission has been attributed to a variety of changes including global warming. To determine whether the reemergence of malaria in western Kenya could be attributed to changes in meteorologic conditions, we tested for trend...

2004
SUDHEER CHAVA ROBERT A. JARROW

This paper investigates the forecasting accuracy of bankruptcy hazard rate models for U.S. companies over the time period 1962–1999 using both yearly and monthly observation intervals. The contribution of this paper is multiple-fold. One, using an expanded bankruptcy database we validate the superior forecasting performance of Shumway’s (2001) model as opposed to Altman (1968) and Zmijewski (19...

Journal: :اکو هیدرولوژی 0
مجتبی مروج دانشجوی دکتری، دانشکدۀ مهندسی و فناوری کشاورزی، دانشگاه تهران ایمان کریمی راد دانشجوی دکتری، دانشکدۀ مهندسی و فناوری کشاورزی، دانشگاه تهران کیومرث ابراهیمی دانشیار، دانشکدۀ مهندسی و فناوری کشاورزی، دانشگاه تهران

in recent years, the water quality of karun river, iran, has been affected by different pollutant loads such as agricultural drainages, municipal and industrial wastewaters.water quality index (wqi) and gis as an efficient tool can be used to provide necessary support for decisions of the management actions in this river and also capability of time series models can be beneficial for forecastin...

Journal: :ecopersia 2015
hussein akbari mehdi vafakhah

there is different methods for simulating river flow. some of thesemethods such as the process based hydrological models need multiple input data and high expertise about the hydrologic process. but some of the methods such as the regression based and artificial inteligens modelsare applicable even in data scarce conditions. this capability can improve efficiency of the hydrologic modeling in u...

Journal: :journal of arthropod-borne diseases 0
mohammadreza shirzadi communicable diseases management center, ministry of health and medical education, tehran, iran. abolfazl mollalo department of geo-spatial information system (gis), center of excellence in gis, k. n. toosi university of technology, tehran, iran. mohammad-reza yaghoobi-ershadi department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran.

background : zoonotic cutaneous leishmaniasis (zcl), an important public health problem in iran, is sensitive to climate conditions. this study aimed to examine dynamic relations between the climate factors and incidence of zcl in golestan province, northern iran during 2010–2012. methods : data of monthly climatic factors, including temperature variables, relative humidity variables, evaporati...

Hassan Ghasemi Mobtaker, Mansour Matloobi Morteza Taki Seyed Faramarz Ranjbar Yahya Ajabshirchi

Precise knowledge ofthe amount of global solar radiation plays an important role in designing solar energy systems. In this study, by using 22-year meteorologicaldata, 19 empirical models were tested for prediction of the monthly mean daily global solar radiation in Tabriz. In addition, various Artificial Neural Network (ANN) models were designed for comparison with empirical models. For this p...

Journal: :Journal of food research 2021

Canned African giant snails (brine, egusi and sauce) of low acidity (pH 4.5) were produced using Thermal Death Time (TDT) techniques. Sixty cans each product stored for 6 months at normal temperature (30oC). The physicochemical sensory properties these products evaluated monthly. And also, 28 equally accelerated storage temperatures stress (50, 60, 70 & 80oC) weeks. Changes in pH overal...

Journal: :Energy and Buildings 2022

The Passive House Planning Package (PHPP) simulation tool is the only authorized software in Australia for Passivhaus (PH) certification. Despite its key role this certification scheme, previous studies have reported significant gaps between simulated and actual performance. To address limitation, study introduces a bottom-up approach to building performance based on dynamic method combined wit...

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