A Study the effect the direction of the distribution of lighting to improve Images in different lighting by using technique adaptive histogram equalization
Publication Date
Sun Jun 30 2024
Journal Name
International Journal Of Intelligent Engineering And Systems
(3)
Publication Date
Fri Jan 24 2025
Journal Name
Journal Of The American Oil Chemists' Society
Development of natural deep eutectic solvent‐assisted liquid–liquid extraction method for soap removal from biodiesel: Optimization and kinetics
Abstract<p>The soap content in biodiesel is an important challenge during the production and purification processing of biodiesel. Natural deep eutectic solvents (NADES) have recently attracted considerable interest as an environmentally suitable substitute for traditional solvents in the biodiesel industry. This work investigates the soap removal from the contaminated biodiesel using NADES. Eight choline chloride‐based deep eutectic solvents (DESs) were screened using the conductor‐like screening model for real solvents (COSMO‐RS) to identify the most suitable solvent for soap removal and were validated experimentally. The effect of NADES molar ratio, NADES:biodiesel ratio, mixing speed and extraction ti</p>
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(2)
(2)
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
Sat Nov 19 2022
Journal Name
Journal Of Solid State Electrochemistry
(23)
(21)
Publication Date
Mon Aug 01 2022
Journal Name
Baghdad Science Journal
Evaluation of Turkish Delight Prepared With Pigments And Essential Oils Extracted From Clementine (Citrus Clementine) Peels As Natural Antioxidants
Antioxidant
Astaxanthin
Clementine peels
Delight
Essential oils
GC/MS
This experiment presented essential oils by GC/MS, pigment content, and their antioxidant activities as well as sensory evaluation of delight samples. Limonene (66.88%) was the most prevalent yield. The peels of clementine had DPPH and ABT Scavenging activity. All levels of pigment extract had better scores for all sensory values and recorded acceptable scores in terms of appearance, color, aroma, and overall acceptability compared to control delight. Besides, delight samples containing 15 mg astaxanthin pigment extract showed maximum sensory scores compared to other samples and control delight. On the other hand, the product was less acceptable to the panelists compared to control in the case of the addition of 3.75 mg astaxanthin pigme
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(8)
(5)
Publication Date
Wed Aug 03 2022
Journal Name
Chemical Methodologies
(15)
Publication Date
Thu Jun 01 2017
Journal Name
Journal Of Huazhong University Of Science And Technology [medical Sciences]
(2)
Publication Date
Sat Sep 01 2018
Journal Name
Iraqi Journal Of Science
(5)
(1)
Publication Date
Sun May 23 2010
Journal Name
Ibn Al- Haitham J. Fo R Pure & Appl. Sc I
Synthesis, Spectroscopic and Dyeing Performance Studies
of Some New Heterocyclic Azo Dyes and Their Complexes
with Selected Metal Ions
Coupling reaction of m-and p- amino acetop henone and p-amino benzoic acid with (LHistidine) gave the new bidentate azo ligands (L1, L2 and L3). The prepared ligands were identified by FT-IR, UV-Vis, 1HNMR and GC- mass sp ectroscopic technique. Treatment of the prepared ligands with the following metal ions (CoII, NiII, CuII, ZnII, CdII and HgII) in aqueous ethanol with a 1:2 M:L ratio and at optimum pH, yielded a series of neutral complexes of the general formula [M (L)2 Cl2]. The prepared complexes were characterized by using flame atomic absorption, FT-IR, UV-Vis and 1HNMR spectroscopic methods as well as magnetic susceptibility and conductivity measurements. Chloride ion content was also evaluated by (Mohr method). The nature of the com
... Show MorePublication Date
Thu Jan 01 2026
Journal Name
Journal Of The Iranian Chemical Society
(1)
(1)