WhatsApp as a remote patient-monitoring tool in low- and middle-income countries: Experience from the cerebrovascular surgery service in Iraq
(2)
(5)
Publication Date
Sat Dec 01 2012
Journal Name
Journal Of Economics And Administrative Sciences
ESTIMATION OF COEFFICIENTS AND SCALE PARAMETER FOR LINEAR (TYPE 1) EXTREME VALUE REGRESSION MODEL FOR LARGEST VALUES WITH APPLICATIONS
انحدار القيمة المتطرفة
معاملات الانحدار
معلمة القياس
المربعات الصغرى
الإمكان الأعظم
اختبار الرسم الاحتمالي
أزمنة البقاء
مرض ابيضاض الدم
درجات الحرارة العظمى
: Extreme value regression
The regression coefficient
Scale parameter
Least squares
Maximum likelihood
Probability plot test
Leukemia
Maximum grades temperature
In this paper we estimate the coefficients and scale parameter in linear regression model depending on the residuals are of type 1 of extreme value distribution for the largest values . This can be regard as an improvement for the studies with the smallest values . We study two estimation methods ( OLS & MLE ) where we resort to Newton – Raphson (NR) and Fisher Scoring methods to get MLE estimate because the difficulty of using the usual approach with MLE . The relative efficiency criterion is considered beside to the statistical inference procedures for the extreme value regression model of type 1 for largest values . Confidence interval , hypothesis testing for both scale parameter and regression coefficients
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Publication Date
Wed May 29 2019
Journal Name
Iraqi Journal Of Physics
Effect of sulfuric acid solution on thermal conductivity and impact strength of epoxy resin reinforced by silicon dioxide powder
H2SO4
epoxy resin
SiO2
thermal conductivity
impact strength.
In this search, Ep/SiO2 at (3, 6, 9, 12 %) composites is prepared by hand Lay-up method, to measure the change in the thermal conductivity and Impact Strength of epoxy resin before and after immersion in H2SO4 Solution with a 0.3N for 10 days. The results before immersion decreases with the increase of the weight ratios of the reinforcement material (SiO2), It changed from (82.6×10-2 to 38.7×10-2 W/m.°C) with change weight ratios from (3 to 12) % respectively, but after immersion time in the chemical solution where it was (65.6×10-2 W/m.°C) at the weight ratios (6 %) and became (46.6 × 10-2 W/m.°C) after immersion in sulfuric acid. The results of the Impact strength decreased by increasing the percentage weight ratio, it changed f
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Publication Date
Sat Dec 01 2018
Journal Name
Al-khwarizmi Engineering Journal
Design and Implementation of an Automatic Control for Two Axis Tracking System for Applications of Concentrated Solar Thermal Power
Arduino
tracking system
solar collector.
The present work presents design and implementation of an automated two-axis solar tracking system using local materials with minimum cost, light weight and reliable structure. The tracking system consists of two parts, mechanical units (fixed and moving parts) and control units (four LDR sensors and Arduino UNO microcontroller to control two DC servomotors). The tracking system was fitted and assembled together with a parabolic trough solar concentrator (PTSC) system to move it according to information come from the sensors so as to keep the PTSC always perpendicular to sun rays. The experimental tests have been done on the PTSC system to investigate its thermal performance in two cases, with tracking system (case 1) and without trackin
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(4)
Publication Date
Sat Nov 19 2022
Journal Name
Journal Of Solid State Electrochemistry
(23)
(21)
Publication Date
Sun Feb 01 2026
Journal Name
Energy
(1)
Publication Date
Sun Apr 12 2026
Journal Name
Experimental Heat Transfer
Publication Date
Thu Jun 01 2017
Journal Name
Journal Of Huazhong University Of Science And Technology [medical Sciences]
(2)
Publication Date
Tue Jan 01 2019
Journal Name
Indian Journal Of Public Health Research & Development
(3)
(1)
Publication Date
Wed Aug 10 2016
Journal Name
Al-nahrain
Publication Date
Sat Nov 15 2025
Journal Name
Baghdad Science Journal