نتایج جستجو برای: model of sum square error

تعداد نتایج: 21385207  

ژورنال: علوم آب و خاک 2022

Hydrological models for evaluating and predicting the amount of available water in basins, flood frequency analysis, and developing strategies to deal with destructive floods are expanding daily. In this study, HEC-GeoHMS and Arc Hydro extensions in ArcGIS software and the HEC-HMS model were used to simulate design flood hydrographs in the Aydooghmush basin in the northwest of Iran. SCS-CN, SCS...

In this study we model the daily rainfall occurrence using Markov Chain Analogue Yearmodel (MCAYM) and the intensity or amount of daily rainfall using three different probability distributions; gamma, exponential and mixed exponential distributions. Combining the occurrence and intensity model we obtain Markov Chain Analogue Year gamma model (MCAYGM), Markov Chain Analogue Year exponentia...

2008

The moisture sorption isotherms of Chilean papaya were determined at 5, 20, and 45 oC, over a relative humidity range of 10-95%. The GAB, BET, Oswin, Halsey, Henderson, Smith, Caurie and Iglesias-Chirife models were applied to the sorption experimental data. The goodness of fit of the mathematical models was statistically evaluated by means of the determination coefficient, mean relative percen...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1388

abstract sensitive and precise voltammetric methods for the determination of trace amounts of furaldehydes, mainly as furfural (f) and 5-hydroxymethyl-2-furaldehyde (hmf), in waste waters and other matrices is described. determination of total furaldehyde at < ?g g-1 levels in alkaline buffered aqueous media was individually investigated. by the use of ordinary swv and adsorptive square wave ...

Journal: :مدیریت آب و آبیاری 0
حسن علی بخشی کارشناس ارشد، گروه مهندسی آب، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری- ایران علی شاهنظری استادیار، گروه مهندسی آب، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری- ایران رمضان طهماسبی استادیار، گروه مهندسی آب، مؤسسۀ آموزش عالی علمی کاربردی جهاد کشاورزی، تهران- ایران

in this research, the appropriateness of drainmod-n model was evaluated for the simulation of nitrate transport with subsurface drainage in paddy fields. during a canola growing season from november 2011 to april 2012, the nitrate concentration of drainage water and soil saturation extracts of two depths of 30 and 60 cm was measured in consolidated paddy fields of sari agricultural sciences and...

Journal: :journal of agricultural science and technology 2011
y. tulek

the objective of this study was to investigate the drying kinetics of oyster mushroom, pleurotus ostreatus mushrooms were dried using a cabinet-type convective dryer. air temperatures of 50, 60 and 70 oc were used for the drying experiments. the experimental drying data were fitted to different theoretical models to predict the drying kinetics. nonlinear regression analysis was performed to rel...

Journal: :مهندسی بیوسیستم ایران 0
سجاد نصرالهی دانشجوی کارشناسی ارشد رضا علیمردانی استاد، دانشکده مهندسی و فناوری کشاورزی پردیس کشاورزی و منابع طبیعی دانشگاه تهران محمد شریفی استادیار، دانشکده مهندسی و فناوری کشاورزی پردیس کشاورزی و منابع طبیعی دانشگاه تهران محمد رضا تقی زاده یزدی استادیار، دانشکده مدیریت دانشگاه تهران

in this study two intelligent systems, based on adaptive neuro-fuzzy inference systems (anfis) and artificial neural networks (anns) of forecasting municipal solid wastes (msw) generation has been proposed. anfis and anns as an intelligent tool compared with together was used to monthly prediction of msw generated in tehran. monthly amount of solid wastes (sw), total monthly precipitation, mont...

Journal: :مهندسی بیوسیستم ایران 0
علی زمردیان زهرا کاووسی

canola is a prominent oil seed crop with a very high production potential in iran and the production process of which needs to be optimized. drying is an important part of the processing of the crop with emc values playing a vital role in the process. in this research adsorption and desorption experiments were conducted in an environmental chamber for licord variety of canola. the thin layer ex...

Journal: :Theory and Applications of GIS 1995

Journal: :Journal of the Japan society of photogrammetry and remote sensing 1991

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