Results 21 to 30 of about 3,763 (235)

Strengthening Probabilistic Graphical Models: The Purge-and-Merge Algorithm

open access: yesIEEE Access, 2021
Probabilistic graphical models (PGMs) are powerful tools for solving systems of complex relationships over a variety of probability distributions. However, while tree-structured PGMs always result in efficient and exact solutions, inference on graph (or ...
Simon Streicher, Johan A. Du Preez
doaj   +1 more source

Towards the Biobeneficiation of PGMs: Reviewing the Opportunities

open access: yes, 2021
Conventional beneficiation of the Platinum Group of Metals (PGMs) relies on the use of inorganic chemicals. With the depreciation of high grade deposits, these conventional processes are becoming less economically viable.
Sehliselo Ndlovu   +2 more
core   +1 more source

SECONDARY PLATINUM-GROUP MINERALS FROM A PLACER OF THE BOLSHOY SAP RIVER (CENTRAL URALS) [PDF]

open access: yesМинералогия
The object of the present study includes grains of platinum-group minerals (PGMs) from a concentrate, which was obtained during mining of a technogenic gold placer near the Pervomaisky duniteharzburgite massif (Central Urals).
V.V. Murzin, K.N. Malitch, A.Yu. Kisin
doaj   +1 more source

Placental Growth Measures in Relation to Birth Weight in a Latin American Population [PDF]

open access: yesRevista Brasileira de Ginecologia e Obstetrícia, 2016
Introduction The placenta, translates how the fetus experiences the maternal environment and is a principal influence on birth weight (BW). Objective To explore the relationship between placental growth measures (PGMs) and BW in a public maternity ...
Carlos Grandi   +4 more
doaj   +1 more source

An electrochemical process for recovering platinum group metals (PGMS) from solid residues||An electrochemical process for recovering platinum group metals (PGMS) from solid residues

open access: yes, 2022
AU2023229945 (A1) CN118891400 (A) EP4490346 (A1) WO2023170106 (A1)An electrochemical process for recovering platinum group metals (PGMs) from a PGM-containing solid residue, including the steps of: a) subjecting the solid residue to electroleaching in ...

core   +1 more source

Influence of H2O2 and O3 on PGM Extraction from Used Car Catalysts [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
Catalytic converters contain the catalytic substance in their structure, which is a mixture of Platinum Group Metals (PGMs). The prices of these metals and a growing demand for them in the market, make it necessary to recycle spent catalytic converters ...
A. Fornalczyk   +3 more
doaj   +1 more source

Effects of Lipophilic Emulsifiers with Different Hydrophilic Groups on the Crystallization of Fat Blend and the Stability of Whipped Cream [PDF]

open access: yesShipin Kexue, 2023
The effects of the lipophilic emulsifiers glycerol monostearate (GMS), polyglycerol fatty acid esters (PGE) and propylene glycol monostearate (PGMS) on the crystallization of an anhydrous milk fat-based fat blend and the stability of whipped cream were ...
LI Yonghao, LIAO Tao, CAI Yongjian, DENG Xinlun, ZHAO Qiangzhong, ZHAO Mouming
doaj   +1 more source

Recovery of platinum group metals from spent automotive catalysts: A review

open access: yesCleaner Engineering and Technology, 2021
In the last decades, a worldwide investment in the recovery or substitution of platinum group metals (PGMs) has been financed. PGMs have been classified as critical raw materials (CRMs), thus a circular economy model should be implemented for their ...
Iakovos Yakoumis   +3 more
doaj   +1 more source

Dissolution of Palladium Metal in Solvent Leaching System with the Presence of Oxidizing Agent

open access: yesMetals, 2021
Platinum group metals (PGMs) are important for the manufacture of advanced materials in the field of catalysts and electronic devices. Since the chemical properties of PGMs are very similar to each other, hydrometallurgical processes should be employed ...
Viet Nhan Hoa Nguyen   +2 more
doaj   +1 more source

Phosphoglycerate mutases function as reverse regulated isoenzymes in Synechococcus elongatus PCC 7942. [PDF]

open access: yesPLoS ONE, 2013
Phosphoglycerate-mutase (PGM) is an ubiquitous glycolytic enzyme, which in eukaryotic cells can be found in different compartments. In prokaryotic cells, several PGMs are annotated/localized in one compartment.
Jiri Jablonsky   +3 more
doaj   +1 more source

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