Results 41 to 50 of about 26,050 (260)

Wellbore shrinkage during drilling in methane hydrate reservoirs

open access: yesEnergy Science & Engineering, 2019
Methane hydrates as a clean and abundant energy source, have attracted the attention of the world. However, the instability of hydrate reservoirs makes it difficult to drill production wells.
Chuanliang Yan   +6 more
doaj   +1 more source

Shrinkage Compensation Technology of Concrete Filled Steel Tubular Structure of Large Cross-Sea Bridge

open access: yesAdvances in Civil Engineering, 2023
In view of the poor accuracy and unsatisfactory effect of shrinkage compensation for concrete-filled steel tubular structures of large cross-sea bridge (CSTS-LCSB), a new shrinkage compensation technology for CSTS-LCSB is proposed.
Yi Zhao, Xiao Wu
doaj   +1 more source

Sustainable production of Low-Shrinkage fired clay bricks by utilizing waste plastic dust

open access: yesAlexandria Engineering Journal, 2023
Plastic waste is an immense challenge for waste management and sustainable development because it has been detrimental to aquatic and terrestrial life.
Maria Idrees   +4 more
doaj   +1 more source

Dynamically Actuated Reconfigurable Topographical Surface Enables Active Control of Implant‐Associated Infections

open access: yesAdvanced Functional Materials, EarlyView.
A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash   +4 more
wiley   +1 more source

2D Skeletal Muscle Thin Film Actuators Enhance Efficiency of Biohybrid Robots

open access: yesAdvanced Functional Materials, EarlyView.
2D skeletal muscle thin film actuators generate millinewton‐scale forces and millimeter‐scale strokes while remaining functional for over 30 days. Their force density is 20‐fold higher than 3D skeletal muscle actuators, enabling multi‐fin robots with tunable speed and multidirectional steering.
Maheera Bawa   +5 more
wiley   +1 more source

A simplified but improved numerical approach to determine moisture balance for plastic shrinkage cracking in concrete

open access: yesCase Studies in Construction Materials
This paper introduces an improved numerical approach for evaluating moisture balance on concrete surface which can initiate plastic shrinkage cracking on the surface of fresh concrete in concrete slab.
Hyun-Kyoung Kim, Hyo-Gyoung Kwak
doaj   +1 more source

An Integrated Oxygen‐Supplying Device and Predictive Multiphysics Model for Extended Ambient Transport of Insulin‐Producing Cells

open access: yesAdvanced Functional Materials, EarlyView.
Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez   +9 more
wiley   +1 more source

Research on Optimization of Injection Molding Process Parameters of Automobile Plastic Front-End Frame

open access: yesAdvances in Materials Science and Engineering, 2022
The main objective of the present article is to obtain the optimum technological parameters of the automobile plastic front-end frame. Moldflow software was used to simulate the injection molding of the automobile plastic front-end frame bracket in this ...
Kai Yang, Lingfeng Tang, Peng Wu
doaj   +1 more source

ATP‐Mediated Bidirectional Communication Between Natural and Artificial Cells for Controlled Bioreactions

open access: yesAdvanced Functional Materials, EarlyView.
Establishment of bidirectional communication behavior between natural and artificial cells. The first type of communication from natural dendritic cells to artificial polymeric cells was achieved via ATP release after cell lysis. The released ATP was taken up via gated UV‐controlled permeability increase of the polymeric membrane for performing ...
Ilona Kalte   +6 more
wiley   +1 more source

The influence of plasticising admixtures on drying shrinkage of cementitious composites

open access: yesEngineering Structures and Technologies, 2018
This article presents a research into the impact of plasticising admixtures on drying shrinkage of cementitious composites by evaluating the effectiveness of plasticising.
Gintautas Skripkiūnas   +3 more
doaj   +1 more source

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