Altmtip impact exercises in raising the dynamic range of the skill of the backward straight step down on the balance beam.
Publication Date
Thu Oct 15 2015
Journal Name
International Journal Of Computer Applications
Experimental Investigation for Small Horizontal Portable Wind Turbine of Different Blades Profiles under Laboratory Conditions
Portable wind turbines
Mini wind turbine
Performance of Wind turbine
Modeling and control of wind turbine
Aerodynamic of wind turbines.
Experimental investigation for small horizontal portable wind turbine (SHPWT) of NACA-44, BP-44, and NACA-63, BP-63 profiles under laboratory conditions at different wind velocity range of (3.7-5.8 m/s) achieved in present work. Experimental data tabulated for 2, 3, 4, and 6- bladed rotor of both profiles within range of blade pitch angles . A mathematical model formulated and computer Code for MATLAB software developed. The least-squares regression is used to fit experimental data. As the majority of previous works have been presented for large scale wind turbines, the aims were to present the performance of (SHPWT) and also to make a comparisons between both profiles to conclude which is the best performance. The overall efficiency and el
... Show More
Publication Date
Thu May 02 2024
Journal Name
Iraqi Journal Of Applied Physic
Photosensitivity of Nb2O5/Si Thin
Films Produced via DC Reactive
Sputtering at Different Substrate
Temperatures
: Nb2O5 thin film
Substrate temperatures
Sputtering
Photosensitivity
This study thoroughly investigates the potential of niobium oxide (Nb2O5) thin films as UV-A photodetectors. The films were precisely fabricated using dc reactive magnetron sputtering on Si(100) and quartz substrates, maintaining a consistent power output of 50W while varying substrate temperatures. The dominant presence of hexagonal crystal structure Nb2O5 in the films was confirmed. An increased particle diameter at 150°C substrate temperature and a reduced Nb content at higher substrate temperatures were revealed. A distinct band gap with high UV sensitivity at 350 nm was determined. Remarkably, films sputtered using 50W displayed the highest photosensitivity at 514.89%. These outstanding optoelectronic properties highlight Nb2O5 thin f
... Show MorePublication Date
Thu Jun 01 2017
Journal Name
Journal Of Al-nahrain University Science
Synthesis and Biological Activity Study of New Some Schiff Bases Derived From D-Erythroascorbic Acid
Schiff bases
imine
biological activity
erythroascorbic acid
(2)
Publication Date
Mon Jun 01 2015
Journal Name
Conference: 8th International Conference And Exhibition On Design And Production Of Machines And Dies/molds
Publication Date
Tue Jun 01 2021
Journal Name
Iop Conference Series: Earth And Environmental Science
Performance Evaluation of Al-Karkh Water Treatment Plant Using Model-driven and Data-Driven Models
Abstract<p>There is a great operational risk to control the day-to-day management in water treatment plants, so water companies are looking for solutions to predict how the treatment processes may be improved due to the increased pressure to remain competitive. This study focused on the mathematical modeling of water treatment processes with the primary motivation to provide tools that can be used to predict the performance of the treatment to enable better control of uncertainty and risk. This research included choosing the most important variables affecting quality standards using the correlation test. According to this test, it was found that the important parameters of raw water: Total Hardn</p>
... Show More
Operational performance evaluation
water treatment plant
multiple linear regression
multivariate multiple regression
artificial neural network model
model-driven and data-driven modeling types.
(1)
(2)
Publication Date
Sun Sep 01 2013
Journal Name
Baghdad Science Journal
Some new transition metal complexes of bis (2-methyl furfuraldene)-4,4`-methylene bis (cyclohexylamine) ligand
Schiff base
transition metal
binuclear complexes .
New Fe(II),Co(II),Ni(II),Cu(II) and Zn(II) Schiff base complexes which have the molar ratio 2:1 metal to ligand of the general formula [M2( L) X4] (where L=bis(2-methyl furfuraldene)-4-4`-methylene bis(cyclo-hexylamine) ) were prepared by the reaction of the metal salts with the ligand of Schiff base derived from the condensation of 2:1 molar ratio of 2-acetyl furan and 4-4`-methylene bis (cyclohexylamine). The complexes were characterized by elemental analysis using atomic absorption spectrophotometer ,molar conductance measurements, infrared, electronic spectra,and magnetic susceptibility measurement. These studies revealed binuclear omplexes. The metal(II) ion in these complexes have four coordination sites giving the most ex
... Show More
Publication Date
Tue Jan 01 2019
Journal Name
Cogent Engineering
(5)
(2)
Publication Date
Thu Aug 01 2019
Journal Name
مجلة العلوم الاقتصادية والإدارية
Improving" Jackknife Instrumental Variable Estimation method" using A class of immun algorithm with practical application
Improving" Jackknife Instrumental Variable Estimation method" using A class of immun algorithm with practical application
Publication Date
Fri Apr 01 2022
Journal Name
Heliyon
(33)
(27)
Publication Date
Fri Jan 31 2025
Journal Name
Aip Conference Proceedings
(1)
(1)