Results 31 to 40 of about 59,488 (256)

Phase Equilibria Studies in the CaO-MgO-Al2O3-SiO2 System with Al2O3/SiO2 Weight Ratio of 0.4

open access: yesMetals, 2023
With the raw materials for ironmaking becoming increasingly complex, more accurate phase equilibrium information on the slag is needed to refine the blast furnace operation to reduce the energy cost and CO2 emissions. CaO-SiO2-Al2O3-MgO is a basic system
Jinfa Liao, Gele Qing, Baojun Zhao
doaj   +1 more source

Liesegang patterns: Effect of dissociation of the invading electrolyte

open access: yes, 1998
The effect of dissociation of the invading electrolyte on the formation of Liesegang bands is investigated. We find, using organic compounds with known dissociation constants, that the spacing coefficient, 1+p, that characterizes the position of the n-th
Antal T.   +21 more
core   +1 more source

Alkali-metal-mediated zincation (AMMZn) meets N-heterocyclic carbene (NHC) chemistry : Zn–H exchange reactions and structural authentication of a dinuclear Au(I) complex with a NHC anion [PDF]

open access: yes, 2013
Merging two evolving areas in synthesis, namely cooperative bimetallics and N-heterocyclic carbenes (NHCs), this study reports the isolation of the first intermediates of alkali-metal-mediated zincation (AMMZn) of a free NHC and a Zn–NHC complex using ...
Aldeco-Perez   +55 more
core   +1 more source

Advances in the Physicochemical Profiling of Opioid Compounds of Therapeutic Interest

open access: yesChemistryOpen, 2019
This review focuses on recent developments in the physicochemical profiling of morphine and other opioids. The acid‐base properties and lipophilicity of these compounds is discussed at the microscopic, species‐specific level.
Prof. Károly Mazák   +2 more
doaj   +1 more source

Effect of Chemical Composition and Temperature on Viscosity and Structure of Molten CaO-Al2O3-SiO2 System / Wpływ Składu Chemicznego I Temperatury Na Lepkość I Strukturę Ciekłego Układu Cao-Al2O3-SiO2

open access: yesArchives of Metallurgy and Materials, 2015
The effects of the change of chemical composition and temperature on the viscosity of CaO-Al2O3-SiO2 oxide system with basicity from 0.78 to 1.63 were investigated in this paper.
Řeháčková L.   +8 more
doaj   +1 more source

Experimental and modeling studies on the synthesis and properties of higher fatty esters of corn starch [PDF]

open access: yes, 2009
This paper describes a systematic study on the synthesis of higher fatty esters of corn starch (starch laurate and starch stéarate) by using the corresponding vinyl esters.
Aburto   +24 more
core   +1 more source

Combustion Melting Characterisation of Solid Fuel Obtained from Sewage Sludge

open access: yesEnergies, 2021
Solid fuelization technology can increase the heating value of sewage sludge such that it can be utilised as a fossil fuel substitutes. Reducing landfilling of bottom and fly ash resulting from heavy metals contained in sewage sludge is challenging ...
Dongju Kim   +5 more
doaj   +1 more source

Imaging of High‐Risk Neuroblastoma: Recommendations From SIOPEN Radiology and Nuclear Medicine Specialty Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Neuroblastoma is the most common extracranial solid tumor in early childhood. Its clinical behavior is highly variable, ranging from spontaneous regression to fatal outcome despite intensive treatment. The International Society of Pediatric Oncology Europe Neuroblastoma Group (SIOPEN) Radiology and Nuclear Medicine Specialty Committees ...
Annemieke Littooij   +11 more
wiley   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Effects of Basicity and Mesh on Cr Leaching of EAF Carbon Steel Slag

open access: yesApplied Sciences, 2018
The slag’s chromium leaching is one of the most pressing concerns in Electric Arc Furnace (EAF) carbon and stainless steels production. In recent years, many studies have aimed at understanding which properties (basicity, cooling speed) and phases (
Davide Mombelli   +5 more
doaj   +1 more source

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