نتایج جستجو برای: rmse regression model

تعداد نتایج: 2331037  

Journal: :journal of research in health sciences 0
lily tapak ali reza rahmani abbas moghimbeigi

background: water is considered as the main source of life but water resources are limited and nonrenewable. different factors have caused groundwater to decrease. therefore, modeling and predicting groundwater level is of great importance. methods: monthly groundwater level data of about 20 years (october 1991 to february 2012) from the hamadan-bahar plain, west of iran were used based on peiz...

2016
Xiangyu Zhang Jigeng Li Yanzhong Zhang Wei Cai Huanbin Liu

Pulp properties are key factors to assessing the performance of a refining process, evaluating operational conditions, and optimizing the process of stock preparation. This paper presents a data-driven approach to estimate the beating degree and wet weight of pulp after refining using case-based reasoning (CBR). Historical data generated in a refining process at a paper mill was used to evaluat...

ژورنال: علوم آب و خاک 2009
بیگی هرچگانی, حبیب اله , صالحی, محمدحسن , مهاجر, رضا,

Soil fertility measures such as cation exchange capacity (CEC) may be used in upgrading soil maps and improving their quality. Direct measurement of CEC is costly and laborious. Indirect estimation of CEC via pedotransfer functions, therefore, may be appropriate and effective. Several delineations of two consociation map units consisting of two soil families, Shahrak series and Chaharmahal seri...

Journal: :Remote Sensing 2016
Linqing Yang Kun Jia Shunlin Liang Jingcan Liu Xiaoxia Wang

Long-term global land surface fractional vegetation cover (FVC) products are essential for various applications. Currently, several global FVC products have been generated from medium spatial resolution remote sensing data. However, validation results indicate that there are inconsistencies and spatial and temporal discontinuities in the current FVC products. Therefore, the Global LAnd Surface ...

2012
Amitha Joy

Cardiac glycosides are group of natural products found to be effective against various cancers. The aim of this study is to propose a binding mode for different conformation of cardiac glycoside analogues to Na, K ATPase pump which is an important target for various cancer cell lines. Quantitative structure activity relationships model were developed with the cytotoxic activity (Expt. IC50) of ...

Journal: :مهندسی بیوسیستم ایران 0
محمدرضا خوانچه گردان دانشجوی کارشناسی ارشد، دانشگاه علوم کشاورزی و منابع طبیعی گرگان شاهین رفیعی دانشیار، پردیس کشاورزی و منابع طبیعی مهدی کاشانی نژاد دانشیار، دانشگاه علوم کشاورزی و منابع طبیعی گرگان سیدمهدی جعفری استادیار، دانشگاه علوم کشاورزی و منابع طبیعی گرگان

thin layer drying behavior of sweet lemon slice was experimentally investigated in a convective type dryer and the mathematical modeling performed, using thin layer drying models given in literature. drying experiments were conducted at inlet drying air temperatures of 40, 50, 60, 70 and 80 ?c; two slice thicknesses of 3 and 6 mm, and, at one drying air velocity of 0.5 m/s with three replicatio...

Journal: :Remote Sensing 2018
Sasan Vafaei Javad Soosani Kamran Adeli Hadi Fadaei Hamed Naghavi Tien Dat Pham Dieu Tien Bui

The main objective of this research is to investigate the potential combination of Sentinel-2A and ALOS-2 PALSAR-2 (Advanced Land Observing Satellite -2 Phased Array type L-band Synthetic Aperture Radar-2) imagery for improving the accuracy of the Aboveground Biomass (AGB) measurement. According to the current literature, this kind of investigation has rarely been conducted. The Hyrcanian fores...

2012
LIYTH NISSIRAT MAHAMOD ISMAIL MAHDI A. NISIRAT

This paper addresses a path loss prediction and optimization by means of Lee’s model for Jiza town, south of Amman city, Jordan. Data were collected from mobile companies in Jordan in the frequency band of 900, and 1800 MHz. The calibrated Lee’s, Hata, and Egli’s path loss models were compared with respect to the original collected data. It is found that for the 900 MHz Lee’s prediction model h...

Journal: :آب و خاک 0
وحید یزدانی بیژن قهرمان کامران داوری محمدابراهیم فاضلی

one of the important aspects of soil is, knowing the relationships between spatial features of soil and quantity in statistical model. the goal of this research is to estimate saturated hydraulic conductivity by regression and co-active neuro-fuzzy inference system (anfis) with using the parameters of bulk density, real density, porosity, fractal dimension of particle size, and clay percent, si...

2017
Salem Ibrahim Salem Hiroto Higa Hyungjun Kim Hiroshi Kobayashi Kazuo Oki Taikan Oki

Numerous algorithms have been proposed to retrieve chlorophyll-a concentrations in Case 2 waters; however, the retrieval accuracy is far from satisfactory. In this research, seven algorithms are assessed with different band combinations of multispectral and hyperspectral bands using linear (LN), quadratic polynomial (QP) and power (PW) regression approaches, resulting in altogether 43 algorithm...

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