Results 91 to 100 of about 125,970 (301)

Ratio of natural isotopes of nitrogen. I. Primary results: soils of Dombes [Translation from: Revue d'Ecologie et de Biologie du Sol 14, 279-287, 1977] [PDF]

open access: yes, 1980
Utilization of the heavy isotope of nitrogen as a tracer has found numerous applications in soil biology. It allows better definition of different stages of the nitrogen cycle, in particular the immobilization-mineralization cycle.
Chalamet, A.   +2 more
core  

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

open access: yesAdvanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena   +2 more
wiley   +1 more source

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

open access: yesAdvanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar   +7 more
wiley   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan   +5 more
wiley   +1 more source

SIMULATION STUDY ON THE EFFECT OF COAL SEAM DIP ANGLE ON DRUM WORK PERFORMANCE

open access: yesJixie qiangdu, 2019
To study the interaction mechanism of shearer and the surrounding rock,using the MG500/1180-WD shearer model as research objects,EDEM discrete element simulation software is used to establish the three-dimensional simulation model,Considered the effect ...
MAO Jun   +3 more
doaj  

A monitoring and fault diagnosis system for shearer based on embedded platform

open access: yesGong-kuang zidonghua, 2014
A monitoring and fault diagnosis system for shearer based on NI CRIO embedded platform and LabView development platform was constructed, main functions and design of hardware and software of the system were introduced in details.
FENG Xuejun   +3 more
doaj   +1 more source

James Malcolm Latham Shearer [PDF]

open access: yesBMJ, 2006
Former general practitioner Boreham, Essex (b 1923; q King's College Hospital, London, 1947; FRCGP), died from prostate cancer on 2 June 2005. Malcolm did hospital jobs in Chelmsford and started the first practice in Boreham in 1954, the early practice premises being in the family rented house.
openaire   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Cresswell Shearer, 1874-1941 [PDF]

open access: yesObituary Notices of Fellows of the Royal Society, 1942
Cresswell Shearer died at Cambridge on 6 February 1941. Of Scotch and Irish descent, he was born in Quebec on 24 May 1874, being the youngest of eleven children. Inclined to be delicate in his early years, he combined an interest in natural history with a love of the violin, inherited from his father.
openaire   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

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