Results 61 to 70 of about 2,901 (210)

Apatite in Carbonatite Preserving Primary Magmatic, Post‐Magmatic Overgrowth, and Post India‐Asia Collision‐Related Hydrothermal Alteration: Evidenced From U–Pb Isotope and Trace Element Geochemistry

Geological Journal, EarlyView.
U–Pb isotope and trace element geochemistry of apatite from carbonatites of Peshawar Plain Alkaline Igneous Province, western Himalaya shows Permo‐Carboniferous magmatism, an additional magmatic pulse during Cretaceous, and post‐magmatic hydrothermal/metasomatism during Oligocene. ABSTRACT U–Pb isotope and trace element geochemistry of apatite combined
Mehboob ur Rashid, Hafiz U. Rehman, Hao‐Yang Lee, Sun‐Lin Chung, Kaushik Das, Kazumasa Aoki, Muhammad Jawad Zeb, Nasir Ahmad, Muhammad Hussain, Hiroshi Yamamoto   +9 more
wiley   +1 more source

Selective flotation of silicates from phosphates using Tetrabutyl Ammonium Chloride as a green collector

Current Research in Green and Sustainable Chemistry
This study introduces Tetrabutyl Ammonium Chloride (TBAC) as a novel selective collector for silicates in the reverse flotation of apatite-quartz model sample. Zeta potential measurements, contact angle analysis, FTIR, and X-ray fluorescence spectroscopy
Ashraf Alsafasfeh
doaj   +1 more source

Is Composting a Route to Solubilize Low-Grade Phosphate Rocks and Improve MAP-Based Composts?

Revista Brasileira de Ciência do Solo, 2018
: In alkalinized and Ca-rich composts, solubilization of apatite from phosphate rocks (PRs) is not guaranteed; however, chelating agents and humified substances produced during composting may alter the soluble contents and P forms of monoammonium ...
Henrique José Guimarães Moreira Maluf, Carlos Alberto Silva, Everton Geraldo de Morais, Leonardo Henrique Duarte de Paula   +3 more
doaj   +1 more source

Heterogeneous Exhumation Mechanisms in Neoproterozoic Collisional Metamorphism: P–T Constraints From Pelotas and Punta del Este Terranes, Southern Brazil and Uruguay

Geological Journal, EarlyView.
Petrography, thermobarometry, and pseudosection modelling reveal peak metamorphic conditions of 3–7.5 kbar and 520°C–800°C in Tonian‐Cryogenian orthogneisses of the Dom Feliciano Belt. Metamorphic field gradients of 27°C/km–39°C/km and variable exhumation mechanisms support correlation of these units as remnants of a Himalayan‐type Piratini Orogeny ...
Thaiane Niederauer‐Santos, Carla Cristine Porcher, Daniel Triboli Vieira, Edinei Koester, Diego Jaldín, Karina Luengo, Luisa Caon   +6 more
wiley   +1 more source

A new cementless tibial baseplate in kinematically aligned total knee arthroplasty has low migration and stabilizes at 3 months: A cohort study using radiostereometric analysis

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Introduction of new components in total knee arthroplasty (TKA) should be assessed for long‐term stability. The primary objective was to determine whether migration of a new cementless tibial baseplate in kinematically aligned (KA) TKA is below the 6‐month threshold where baseplates have a low incidence of long‐term loosening.
Rubiana Monteiro, Ali Mohammadi, Alexander J. Nedopil, Stephen M. Howell, Maury L. Hull   +4 more
wiley   +1 more source

In situ Sr-Nd Isotopic Measurement of Apatite Using Laser Ablation Multi-collector Inductively Coupled Plasma-Mass Spectrometry

Yankuang ceshi, 2013
Apatite is a common accessory mineral, having a high Sr-Nd content and a low Rb content. The precise determination of micro-area Sr-Nd isotopic composition for apatite will provide important geochemical information for discussing the details of the ...
HOU Ke-jun, QIN Yan, LI Yan-he, FAN Chang-fu   +3 more
doaj  

Ultrasound Measurements, Physico‐Chemical Characterization and Biological Evaluation of Magnesium Hydroxyapatite for Biomedical Applications

Macromolecular Symposia, EarlyView.
ABSTRACT In this study, 15MgHAp (xMg = 0.15) was synthesized by an adapted method, lyophilized, and characterized to evaluate its physicochemical and biological properties. The ultrasound measurements (US) evaluated the stability of the resulting MgHAp gel. Complementary surface information was obtained using a scanning ultrasonic microscope (SUM). The
Liliana Ghegoiu, Daniela Predoi, Simona Liliana Iconaru, Carmen Steluta Ciobanu, Damien Leduc, Mounsif Ech Cherif El Kettani, Cristian Catalin Petre, Mihai Valentin Predoi   +7 more
wiley   +1 more source

Effect of Mesoporous Bioactive Glass on the Morphology and Thermal Properties of PLA‐Based Biocomposites for Bone Tissue Engineering

Polymer Engineering &Science, EarlyView.
Schematic overview of the preparation and characterization of PLA‐based biocomposites containing mesoporous bioactive glass, highlighting the relationship between particle morphology, composite properties, and their potential for bone regeneration. ABSTRACT The present study proposes the development of a potential biocomposite for bone regeneration by ...
Bruna Segat, Luis Guilherme Silva Rosa, Felippe Migliato Marega, Luiz Antonio Pessan, Lidiane Cristina Costa, Daniela Becker   +5 more
wiley   +1 more source

Specific action of collector from phosphoric acid alkyl esters class in flotation of apatite-nepheline ores

Записки Горного института
Increasing amount of apatite-nepheline ores with complex mineral composition involved in processing, growing content of the associated minerals in ore which are similar in their floatability to apatite lead to the necessity of using highly selective ...
Galina V. Mitrofanova, Elena V. Chernousenko, Alena A. Kompanchenko, Aleksandr I. Kalugin   +3 more
doaj  

Bioactive coating as a surface modification technique for biocompatible metallic implants: a review

Journal of Asian Ceramic Societies, 2019
Most high load-bearing implants are metallic alloys which contain toxic chemical components that might be released due to the corrosive environment of body fluids and load-bearing activity.
B. Priyadarshini, M. Rama, Chetan, U. Vijayalakshmi   +3 more
doaj   +1 more source