Results 71 to 80 of about 463,460 (194)

PAN AIR: A computer program for predicting subsonic or supersonic linear potential flows about arbitrary configurations using a higher order panel method. Volume 2: User's manual (version 3.0) [PDF]

open access: yes
A comprehensive description of user problem definition for the PAN AIR (Panel Aerodynamics) system is given. PAN AIR solves the 3-D linear integral equations of subsonic and supersonic flow.
Baruah, Pranab K.   +5 more
core   +1 more source

Evaluation of Pan Coefficient Models and Trend Analysis for a Station in Coastal Andhra Pradesh

open access: yesJournal of Water Engineering and Management, 2020
Irrigation scheduling needs an accurate estimation of crop water requirement and can be done using pan evaporation data which is easily available across the country at various meteorological stations. This study aims to evaluate different K models for a station in coastal Andhra Pradesh, India.
P. Heramb, P. K. Singh
openaire   +1 more source

Time-varying Beta Risk of Pan-European Sectors: A Comparison of Alternative Modeling Techniques [PDF]

open access: yes
This paper investigates the time-varying behavior of systematic risk for eighteen pan-European industry portfolios. Using weekly data over the period 1987-2005, three different modeling techniques in addition to the standard constant coefficient model ...
Sascha Mergner
core  

Field Comparison Studies of the Rate of Evaporation Between Colorado Sunken Evaporation Pan and Class A Evaporation Pans in the Arid Areas (Case Study: Semnan City) [PDF]

open access: yesعلوم آب و خاک
One method used to estimate the evaporation rate involves employing various types of evaporation pans, including the standard Colorado Sunken and Class A evaporation pans.
H. R. Ghazvinian   +2 more
doaj  

Facilitating PTZ Camera Auto-Calibration to Be Noise Resilient With Two Images

open access: yesIEEE Access, 2019
This paper presents a simple but effective technique to calibrate a PTZ (Pan/Tilt/Zoom) camera by using only two images for five intrinsic parameters: focal length, aspect ratio, the principle point coordinates and the distortion coefficient.
Rui Wang, Ran Huang, Jiaoru Yang
doaj   +1 more source

Cyclic voltammetry, photocatalytic and antimicrobial comparative studies of fabrication Fe3O4 and Fe3O4/PAN nanofibers

open access: yesMaterials Research Express, 2020
This study reports the properties of green mediated synthesized iron oxides nanoparticles (Fe _3 O _4 NPs) from peel extracts of pomegranate plant and its polyacrylonitrile/iron oxide composite nanofibers (Fe _3 O _4 /PAN).
Ranku N Mogomotsi   +3 more
doaj   +1 more source

A New and Efficient Pan Sharpening Method Based on Optimized Pixel Coefficients

open access: yesGazi University Journal of Science Part A: Engineering and Innovation
Pan sharpening aims to create a multispectral, high spatial resolution image by combining the multispectral image (MSI) with a high spatial resolution panchromatic image (PAN). Pan sharpening methods are performed between the MS image, which is the MSI image brought to PAN dimensions with the help of interpolation, and the PAN image. In this study, PAN
Tuba Çağlıkantar, Melih Can Kılıç
openaire   +2 more sources

Estimation of the pan evaporation coefficient in semi-arid climate conditions via machines learning models

open access: yesApplied Water Science
In this study, class A pan coefficient (KPan) values were simulated via five machine learning models, namely the ANN, the AAN-REPTree, the ANN-SMO SVM, the ANN-Linear regression, and the ANN-Bagging model, by using daily meteorological data of the ...
Mohammed Achite   +5 more
doaj   +1 more source

Using of Learning Vector Quantization Network for Pan Evaporation Estimation

open access: yesTikrit Journal of Engineering Sciences, 2009
A modern technique is presented to study the evaporation process which is considered as an important component of the hydrological cycle. The Pan Evaporation depth is estimated depending upon four metrological factors viz. (temperature, relative humidity,
Kamel A. Abdulmuhsin   +1 more
doaj   +1 more source

Application of piezoelectric macro-fiber-composite actuators to the suppression of noise transmission through curved glass plates

open access: yes, 2012
This paper analyzes the possibility of increasing the acoustic transmission loss of sound transmitted through planar or curved glass shells using attached piezoelectric macro fiber composite (MFC) actuators shunted by active circuits with a negative ...
Mokry, Pavel   +2 more
core   +1 more source

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