Results 11 to 20 of about 57,449 (93)

Study of alumina prepared from Iraqi kaolin [PDF]

open access: yesIraqi Journal of Physics, 2019
The current research was conducted to report the synthesis of alumina powder from Iraqi kaolin. The kaolin was transformed to metakaolin by calcinations at temperature 800 °C for three hours.
Dhuha M. Oudah Al-Sumaidaie
doaj   +2 more sources

Manufacturing Porous Ceramic from Iraqi Kaolin by using paper pulp [PDF]

open access: yesEngineering and Technology Journal, 2017
In this work porous clay refractory was prepared from Iraqi kaolin clay; by addition of water ordifferent type of paper pulp; the paper pulp different in (paper : water), the sample formed by mold method,then dried at room temperature for (72) hr at last
E. M. Hadi, H. J. abd Al-Hussien
doaj   +3 more sources

A Study of Some Mechanical, Thermal and Physical Properties of Polymer Blend with Iraqi Kaolin Filler [PDF]

open access: yesEngineering and Technology Journal, 2011
In the present work, polymer blends were fabricated by mixing two polymers of polypropylene and poly (methyl methacrylate) mixed in different weight percentage and different particle size of Iraqi kaolin.
Najat J. Saleh, Samir Nassaf Mustafa
doaj   +3 more sources

Catalytic Upgrading of Vacuum Residue over Metal-Loaded Iraqi Kaolin Using a Fixed-Bed Reactor

open access: yesApplied Sciences
The catalytic upgrading of vacuum residue (VR) is constrained by the high cost, diffusional limitations, and rapid deactivation of conventional zeolite-based catalysts due to severe coking.
Osamah Basil Al-Ameri   +5 more
doaj   +2 more sources

Manufacturing of porous refractories from Iraqi Kaolin by adding expanded polystyrene waste [PDF]

open access: yesIraqi Journal of Physics, 2018
Fabrication of porous clay refractory insulating specimens from Iraqi kaolin with different percentage of Expanded Polystyrene (EPS) waste crumbs additions were investigated. After mixing and forming by hand molding, the specimens was dried and fired at
Shihab A. Zaidan
doaj   +2 more sources

PRE‐, SYN‐ AND POST‐TECTONIC DIAGENETIC EVOLUTION OF A CARBONATE RESERVOIR: A CASE STUDY OF THE LOWER CRETACEOUS FAHLIYAN FORMATION IN THE DEZFUL EMBAYMENT, ZAGROS FOLDBELT, SW IRAN

open access: yesJournal of Petroleum Geology, Volume 46, Issue 4, Page 441-462, October 2023., 2023
Lower Cretaceous carbonates of the Fahliyan Formation form prolific reservoir rocks at oilfields in the Dezful Embayment, central Zagros fold‐thrust belt, SW Iran. The carbonates have undergone significant diagenetic alteration in phases which can in general be linked to the pre‐, syn‐ and post‐tectonic evolution of the fold‐thrust belt.
Forooz Keyvani   +3 more
wiley   +1 more source

Frozen for combat: Quality of deep‐frozen thrombocytes, produced and used by The Netherlands Armed Forces 2001–2021

open access: yesTransfusion, Volume 63, Issue 1, Page 203-216, January 2023., 2023
Abstract Background The Netherlands Armed Forces (NLAF) are using −80°C deep‐frozen thrombocyte concentrate (DTC) since 2001. The aim of this study is to investigate the effect of storage duration and alterations in production/measurement techniques on DTC quality. It is expected that DTC quality is unaffected by storage duration and in compliance with
Femke Noorman   +3 more
wiley   +1 more source

Improving the Biological Properties of UHMWPE Biocomposite for Orthopedic Applications

open access: yesInternational Journal of Biomaterials, Volume 2023, Issue 1, 2023., 2023
Bone plates are essential for bone fracture healing because they modify the biomechanical microenvironment at the fracture site to provide the necessary mechanical fixation for fracture fragments. The objective of this study was to determine cell availability, antibacterial activity, and wettability through a contact angle test.
Tamara R. Kadhim   +3 more
wiley   +1 more source

Hole Cleaning during Drilling Oil and Gas Wells: A Review for Hole‐Cleaning Chemistry and Engineering Parameters

open access: yesAdvances in Materials Science and Engineering, Volume 2023, Issue 1, 2023., 2023
Efficient hole cleaning during drilling operations is critical to maintain a high rate of penetration and smooth drilling, leading to minimum drilling problems and economical drilling efficiency. This process involves several important factors, including pipe‐sticking incidents, higher cuttings concentrations in the annulus, noisy vibration of the ...
Mohammed Al-Rubaii   +3 more
wiley   +1 more source

The Impact of Molar Proportion of Sodium Hydroxide and Water Amount on the Compressive Strength of Slag/Metakaolin (Waste Materials) Geopolymer Mortar

open access: yesAdvances in Civil Engineering, Volume 2022, Issue 1, 2022., 2022
This investigation aimed to improve great early geopolymer mortar strengths under various parameters with various binder proportions to reduce the use of cement since the OPC production process leads to high emissions of CO2. Hence, to solve this problem, alternative materials were used.
Fatimah N. Al-Husseinawi   +5 more
wiley   +1 more source

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