Results 71 to 80 of about 2,411,267 (285)

Effect of silica fume additions on the hydration behaviour of calcium aluminates [PDF]

open access: yes, 1997
In the recent refractory castables technology, the calcium aluminate cement is being replaced in increasing proportion by very fine matrix components, such as silica fume and colloidal alumina.
Fumo, Daniel A., Segadães, Ana M.
core  

Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots

open access: yesAdvanced Robotics Research, EarlyView.
Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

open access: yesAdvanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska   +2 more
wiley   +1 more source

Occurrence conditions for unsteady combustions in shock-induced combustions around spherical projectiles

open access: yesNihon Kikai Gakkai ronbunshu, 2017
Shock-induced combustion around a spherical body was experimentally investigated by launching the projectile at supersonic speed into a combustible mixture. This study focused on occurrence conditions for an unsteady combustion which was characterized as
Shinichi MAEDA   +4 more
doaj   +1 more source

From Pores to Pavement: Advanced Modeling of Aluminosilicates for Scalable Carbon Capture in Concrete

open access: yesAdvanced Science, EarlyView.
This study presents a transferable modeling framework for carbon capture using aluminosilicates, integrating Universal Isotherm Modeling with experimental data. It reveals how ultramicropores, alumina content, and amine functionalization influence CO2 adsorption energetics.
Pooja Anil Kumar Nair   +4 more
wiley   +1 more source

A lumped kinetic model for heavy fuel oil combustion

open access: yes, 2015
The study proposes a new procedure based on the Coats-Redfern method to develop kinetic model for predicting the combustion characteristics of heavy fuel oils.
Han, Yunqing   +3 more
core  

Structural and photocatalytic characterization of BaFe2O4 obtained at low temperatures

open access: yesMaterials Research, 2011
Barium monoferrite BaFe2O4 classified as permanent magnet stands out among other ceramic magnets due to its high chemical stability, corrosion resistance and low production cost.
Silvana Da Dalt   +3 more
doaj  

The Importance of Detailed Chemical Mechanisms inGas Turbine Combustion Simulations

open access: yesEurasian Chemico-Technological Journal, 2014
This paper – in memory of Jürgen Warnatz – summarizes selected recent papers of the Chemical Kinetics Group at the German Aerospace Center in Stuttgart.
M. Braun-Unkhof   +6 more
doaj   +1 more source

Copper‐Driven Epithelial Barrier Disruption: A Novel Mechanism of COPD Acute Exacerbations Mediated by the TNF‐α/ATP7A Axis

open access: yesAdvanced Science, EarlyView.
This study reveals a copper‐driven mechanism of COPD acute exacerbations mediated by the TNF‐α/ATP7A axis. TNF‐α suppresses the copper transporter ATP7A via competitive NF‐κB/CREB1/CBP signaling, resulting in intracellular copper accumulation, mitochondrial oxidative stress, and epithelial barrier disruption.
Xinru Xiao   +7 more
wiley   +1 more source

Combustion performance of hydrogen fueled parallel wall-jet used for drag reduction in a supersonic combustor

open access: yesCase Studies in Thermal Engineering
Hydrogen fueled parallel wall-jet combustion is considered to be one of the most promising drag reduction technologies in supersonic combustors, researchers mainly focus on its drag reduction mechanism, while balancing its combustion efficiency and drag ...
Jingying Zuo   +6 more
doaj   +1 more source

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