Results 21 to 30 of about 30,626 (294)

Extraction of Manganese and Iron from a Refractory Coarse Manganese Concentrate

open access: yesMetals, 2021
In this research, the coarse manganese concentrate was collected from a manganese ore concentrator in Tongren of China, and the contents of manganese and iron in coarse manganese concentrate were 28.63% and 18.65%, respectively.
Junhui Xiao   +4 more
doaj   +1 more source

Mitochondria‐Targeting Moieties Based on N‐Tethered Pyridinium Cations

open access: yesAngewandte Chemie, EarlyView.
Pyridinium cations were benchmarked as mitochondria‐targeting moieties in a panel of N‐tethered fluorescent‐, bioactive‐, and inert‐cargo conjugates. 3,5‐Diphenylpyridinium (DPPy+) is a competent triphenylphosphonium (TPP+) surrogate, combining high mitochondria‐targeting efficiency with lower intrinsic effects on mitochondrial function.
Ivan Džajić   +27 more
wiley   +2 more sources

Analyse and research of nonmetallic inclusions for steel 100Cr6 [PDF]

open access: yesMetalurgija, 2009
Steel 100Cr6 belongs to a group of hardened steels, which are applicable for production of rolling element parts. Because of specific working conditions, a proper chemical composition is required with a minimum content of nonmetallic inclusion.
I. Vitez   +3 more
doaj  

High voltage pulse generator Patent [PDF]

open access: yes, 1970
High voltage pulse generator for testing flash and ignition limits of nonmetallic materials in controlled ...
Pippen, D. L.
core   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Dual‐Sabatier Optima: How Reaction Mechanism Determines Activity Volcano Map of Dual‐Atom Catalysts for Oxygen Reduction Reaction

open access: yesAngewandte Chemie, EarlyView.
Dual‐atom catalysts (DACs) for oxygen reduction reaction (ORR), where the dissociative mechanism dominates, show a dual‐Sabatier optima volcano map, diverging from the classical single‐peak volcano of the associative mechanism. Potential‐dependent microkinetic modeling and interpretable machine learning rationalize experimental data and provide design ...
Jin Liu   +3 more
wiley   +2 more sources

Influence of refining slag composition on nonmetallic inclusions in 38CrMoAl steel

open access: yesJournal of Materials Research and Technology
To achieve economic transfer of calcium and accurate inclusion modification by utilizing the high basicity of slag instead of calcium treatment, the refining slag of 38CrMoAl steel was optimized through thermodynamic calculations in view of the large ...
Guofang Xu   +6 more
doaj   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

open access: yesAdvanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He   +5 more
wiley   +1 more source

In Situ Synthesis of Surface-Mounted Novel Nickel(II) Trimer-Based MOF on Nickel Oxide Hydroxide Heterostructures for Enhanced Methanol Electro-Oxidation

open access: yesFrontiers in Chemistry, 2021
Engineering the heterogeneous interface fusing MOFs and inorganic active component is an effective strategy to improve the electrochemical performance.
Ya-Ya Sun   +12 more
doaj   +1 more source

Apparatus for positioning and loading a test specimen Patent [PDF]

open access: yes, 1967
Apparatus for testing metallic and nonmetallic beams or rods by bending at high temperatures in vacuum or inert ...
Arias, A.
core   +1 more source

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