systhesis,spectral and kinetic of N2O2macrocycle ligand with divalent metal ions ( Co , Ni and Cu ) complexes
Publication Date
Thu Mar 17 2016
Journal Name
International Journal Of Computer Applications
(3)
Publication Date
Thu Aug 01 2013
Journal Name
Biochemistry
(67)
Publication Date
Fri Jan 01 2021
Journal Name
Materials Today: Proceedings Journal
Improving torsional – Flexural resistance of concrete beams reinforced by hooked and straight steel fibers
Reinforced concrete beam
Combined torsional-flexural load
Steel fibers
(12)
(7)
Publication Date
Wed Nov 27 2019
Journal Name
Environmental Science And Pollution Research
(97)
(93)
Publication Date
Fri Jan 31 2020
Journal Name
Iraqi Geological Journal
Manufacturing Perforated and Ordinary Bricks Using Injana Claystone Exposed in The Middle of Iraq
This study aims to use claystone beds exposed in the Injana Formation (Late Miocene) at Karbala-Najaf plateau, middle of Iraq for the manufacturing of perforated and ordinary bricks. The claystone samples were assessed as an alternative material of the recent sediments, which are preferred to remain as agricultural land. The claystones are sandy mud composing of 29.1 - 39.1% clay, 37.2 - 54.8% silt and 14.1-26.8% sand. They consist of kaolinite, illite, chlorite, palygorskite, and montmorillonite with a lot of quartz, calcite, dolomite, gypsum and feldspar. Claystone samples were characterized by linear shrinkage 0.01 - 0.1%, volume shrinkage 0.1 - 0.9%, bulk density 1.2 - 2.11gm/cm3 (1.68 g / cm3 average), and the efflorescence is
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(1)
Publication Date
Fri Nov 01 2019
Journal Name
Journal Of Engineering
A Comparison Study of Brine Desalination using Direct Contact and Air Gap Membrane Distillation
membranedistillation
direct contact membrane distillation
air gap membrane distillation
desalination
Membrane distillation (MD) is a hopeful desalination technique for brine (salty) water. In this research, Direct Contact Membrane Distillation (DCMD) and Air Gap Membrane Distillation (AGMD) will be used. The sample used is from Shat Al –Arab water (TDS=2430 mg/l). A polyvinylidene fluoride (PVDF) flat sheet membrane was used as a flat sheet form with a plate and frame cell. Several parameters were studied, such as; operation time, feed temperature, permeate temperature, feed flow rate. The results showed that with time, the flux decreases because of the accumulated fouling and scaling on the membrane surface. Feed temperature and feed flow rate had a positive effect on the permeate flux, while permeate temperatu
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(1)
Publication Date
Wed Nov 22 2023
Journal Name
Drug And Chemical Toxicology
(2)
(2)
Publication Date
Sun Dec 03 2017
Journal Name
Journal Of Babylon University
Spectrophotometric Determination of Sulfamethoxazole in Pure and Pharmaceutical Preparations Based on Condensation Reaction Method
Sulfamethoxazole
specttrophotometric determination
dosage forms
1
2-napthoquinone-4-sulphonic acid (NQS).
A new, Simple, sensitive and accurate spectrophotometric methods have been developed for the determination of sulfamethoxazole (SMZ) drug in pure and dosage forms. This method based on the reaction of sulfamethoxazole (SMZ) with 1,2-napthoquinone-4-sulphonic acid (NQS) to form Nalkylamono naphthoquinone by replacement of the sulphonate group of the naphthoquinone sulphonic acid by an amino group. The colored chromogen shows absorption maximum at 460 nm. The optimum conditions of condensation reaction forms were investigated by (1) univariable method, by optimizing the effect of experimental variables (different bases, reagent concentration, borax concentration and reaction time), (2) central composite design (CCD) including the effect of
... Show MorePublication Date
Sun Jan 01 2017
Journal Name
Spe/iatmi Asia Pacific Oil & Gas Conference And Exhibition
Influence of miscible CO2 flooding on wettability and asphaltene precipitation in Indiana Lime Stone
Upstream Oil & Gas
chemical flooding methods
carbonate reservoir
CO2
crude oil
complex reservoir
viscosity
experiment
contact angle measurement
wettability alteration
Carbon dioxide (CO2) flooding is an EOR technique in which carbon dioxide is injected into the reservoir to improve the oil recovery. The reservoir oil and rock properties are altered when carbon dioxide interacts with the oil and rock present in the reservoir. Carbon dioxide injection alters the oil and rock properties by causing reduction in oil viscosity, oil swelling and wettability alteration of the rock. This paper will present a proposal to study the wettability alteration in carbonate formations during miscible carbon dioxide flooding. In miscible carbon dioxide flooding, the injection pressure of carbon dioxide would be kept above the minimum miscibility pressure. Thus carbon dioxide is miscible with the oil present in the reservoi
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Sun Jan 01 2017
Journal Name
National Journal Of Physiology, Pharmacy And Pharmacology
(1)