Results 111 to 120 of about 311,267 (287)

First metals discovery and development the sacral component phenomenon [PDF]

open access: yes, 2015
This article is accentuated on the civilizational significance of the first industrial metals discovery, it reveals the prerequisites for the development of ores and the main stages of metals mastering connected with centuries-old experience of the ...
Biletskyi, V. S., Haiko, H.
core  

Marfan Syndrome Associated With Intellectual Disability and Behavioral Anomalies: Further Evidence for the Effect of Compound Heterozygous Variants in FBN1 on Phenotypic Severity

open access: yesAmerican Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Marfan syndrome (MFS) is a rare connective tissue disorder characterized by involvement of the cardiovascular, ocular, and musculoskeletal systems. Pathogenic variants in FBN1 cause most of the MFS cases; however, intellectual disability (ID) is rarely observed. A non‐consanguineous Pakistani family with four affected individuals was recruited.
Azmatullah Khan   +4 more
wiley   +1 more source

Interrelationship of hydrology, microbial colonisation and hydrometallurgy in a simulated chalcopyrite heap leach [PDF]

open access: yes, 2008
Includes bibliographical references (leaves 104-115).Chalcopyrite is the most abundant primary copper sulphide mineral found worldwide. As copper grades of ores available for extraction decrease, heap bioleaching is gaining interest as a potential ...
Spurr, Nicholas Robert Louis
core  

WORLD OCEAN GAS SEEPS

open access: yesГеологія і корисні копалини Світового океану, 2019
According to the literature data, the development of gas seeps in the World Ocean is analyzed. They were found and studied in the Atlantic, Pacific and Indian oceans, in the Arctic seas and on the Baikal.
Ye.F. Shnyukov, I.V. Topachevsky
doaj   +1 more source

Pegmatites of the Mokromoskovsk granite pluton

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія
Introduction. The Mokromoskovsky pluton is composed of light gray granites and dark gray granodiorites. Light gray granites are composed of oligoclase (35-40%), microcline (20-25%), quartz (30-35%), and biotite (2-5%).
Yuliia Lytvynenko
doaj   +1 more source

A Novel Deep Temporal Feature Enhanced Just‐in‐Time Learning Framework for Predicting Rare Earth Component Content

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Real‐time online detection of rare earth element component contents is a crucial link in ensuring the stable production of the rare earth extraction and separation industry and improving the quality of rare earth products. The traditional methods for predicting the content of rare earth element components based on just‐in‐time learning fail to
Zhaohui Huang   +6 more
wiley   +1 more source

PRINCIPLES OF ROCK PRESSURE ENERGY USAGE DURING UNDERGROUND MINING OF DEPOSITS [PDF]

open access: yes, 2017
Purpose. To substantiate principles of rock pressure usage during underground mining of deposits. Methodology. Zonal structuring indices of massif around mine workings were established with help of industrial, laboratory and theoretical research of ...
Khomenko, O. Ye   +3 more
core  

Characterization and Modeling of Industrial Phosphoric Acids' Rheological Behavior: Impact of Magnesium Monoxide on Viscosity

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study investigates the rheological behavior of industrial phosphoric acids (H3PO4) produced at the JORF–LASFAR phosphoric plant in Morocco, with P2O5 concentrations of 18%, 29%, 42%, and 54%. Rheological measurements were performed using a rotary cylinder rheometer over a shear rate range of 1–1000 s−1.
Hamza Belbsir   +6 more
wiley   +1 more source

Reduction of Ribonucleotide Reductase Subunit RRM2 Potentially Impairs Gut Function of Woody Breast Broilers

open access: yesAnimal Research and One Health, EarlyView.
Woody breast compromises meat quality leading to reduced consumer appeal. Although its causes are unclear, improvements observed with certain dietary supplements suggest that gut health may influence woody breast development. Ribonucleotide reductase subunit RRM2 is vital for mitochondrial function and gastrointestinal integrity, and alteration in its ...
Majid Shakeri   +8 more
wiley   +1 more source

Metal sources for the Katanga Copperbelt deposits (DRC) insights from Sr and Nd isotope ratios [PDF]

open access: yes, 2014
The ore deposits of the Central African Copperbelt formed during a multiphase mineralisation process. The basement underlying the Neoproterozoic Katanga Supergroup that hosts the ore, demonstrates the largest potential as metal source.
El Desouky, Hamdy A   +4 more
core   +1 more source

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