Results 41 to 50 of about 148,140 (260)

Predicting mechanical development of mine functional mortar: experiment and thermodynamic analysis

open access: yesJournal of Materials Research and Technology, 2023
Shotcrete mortar is an imperative material for tunnel surface supporting. The mine environment with different temperature affects the mechanical development of mortar, resulting in a difficult to predict its compressive strength development at high ...
Binbin Huo   +8 more
doaj   +1 more source

A molecular dynamics study of proton hopping in nafion membrane [PDF]

open access: yes, 2014
This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014)   +2 more
core  

Glass transition in biomolecules and the liquid-liquid critical point of water

open access: yes, 2006
Using molecular dynamics simulations, we investigate the relation between the dynamic transitions of biomolecules (lysozyme and DNA) and the dynamic and thermodynamic properties of hydration water.
A. L. Tournier   +13 more
core   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

open access: yesAdvanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Reaction rate analysis with unreacted-core shell model for chemical heat pump cooling mode with SrBr2 hydration

open access: yesNihon Kikai Gakkai ronbunshu, 2017
Here, we propose a chemical heat pump chiller with a SrBr2 hydration reaction system for utilization of waste heat. The SrBr2 hydration reaction could recover waste heat in low temperatures ranging from 373 to 353K, and the system showed good potential ...
Takehiro ESAKI   +3 more
doaj   +1 more source

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin   +5 more
wiley   +1 more source

Effect of Steel Fibers on Heat of Hydration and Mechanical Properties of Concrete Containing Fly Ash

open access: yesMehran University Research Journal of Engineering and Technology, 2019
This study investigated the effects of steel fibers on the fresh and hardened properties, and heat of hydration of concrete containing FA (Fly Ash). A total of 192 samples were cast comprising cubes, cylinders, and prisms, for six concrete mixes with ...
Sajid Mehmood, Faheem Butt
doaj   +1 more source

Design and Performance Evaluation of Dry-Mixed Cement Recycled Aggregate Pile

open access: yesAdvances in Materials Science and Engineering, 2022
In this paper, dry-mixed recycled cement concrete gravel (CCG) piles and dry-mixed cement macadam gravel (CMG) piles were analyzed. CCG and CMG were prepared by using recycled concrete aggregate (RCA) with different substitution rates, recycled macadam ...
Boming Shang   +6 more
doaj   +1 more source

Early hydration heat release and strength evolution of cemented backfill with graded fine tailings

open access: yes工程科学学报, 2023
In this work, the early hydration reaction and mechanical evolution characteristics of graded fine tailing cemented backfill are studied. The hydration exothermicity and electrical resistance characteristics of backfill slurry with different lime sand ...
Yun-peng KOU   +5 more
doaj   +1 more source

Harry Hess and sea-floor spreading [PDF]

open access: yes, 1999
Harry Hess's hypothesis of sea-floor spreading brought together his long-standing interests in island arcs, oceanic topography, and the oceanic crust. The one unique feature of Hess's hypothesis was the origin of the oceanic crust as a hydration rind on ...
Allwardt, Alan O.
core  

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