Results 101 to 110 of about 7,208 (307)
Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective
Advanced Functional Materials, EarlyView.Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk +3 more
wiley +1 more source
Combustion characterization of methanol in a lean burn Direct Injection Spark Ignition (DISI) engine
, 2019 Lean operation is a promising approach to increase the engine efficiency. One of the main challenges for lean-burn technology is the combustion instability. Using a high laminar burning velocity fuel such as methanol might solve that problem.
Vergote, Viktor +9 more
core +1 more source
Double‐Interpenetrating Composite Bioink for Multi‐Component 3D Bioprinting and Biofabrication
Advanced Functional Materials, EarlyView.Marine‐polysaccharides‐derived double interpenetrating network hydrogel‐based bioink, combining the attributes of physical and ionic crosslinking, enables room‐temperature bioprinting of mechanically defined structures that can be handled and are cytocompatible.
Fabian Tribukait‐Riemenschneider +1 more
wiley +1 more source
The influence of a multi-sector environment on lean-burn gas turbine combustor aerodynamics
, 2018 The influence of a multi-sector environment on lean-burn gas turbine combustor ...
Rene Vespermann (7123682)
core +1 more source
Frontiers in Energy ResearchThe complementary utilization of oxyhydrogen and bio-isopropanol in carbon-neutral fuel engines can effectively enhance power output and combustion stability. However, oxyhydrogen blended combustion results in an increase in NOx emissions.
Zhanglei Lei +18 more
doaj +1 more source
NASA Lewis Research Center lean-, rich-burn materials test burner rig
, 1994 The lean-, rich-burn materials test burner rig at NASA LeRC is used to evaluate the high temperature environmental durability of aerospace materials. The rig burns jet fuel and pressurized air, and sample materials can be subjected to both lean-burn and ...
Robinson, R. C., Stearns, C. A.
core
Effects of Residual Burnt Gas Heterogeneity on Cyclic Variability in Lean-burn SI Engines
, 2014 WOS:000336310800002International audienceThis study examines the effects of Residual Burnt Gas (RBG) field heterogeneity on Cycle-to-Cycle Variations (CCVs) under lean operation in Spark-Ignited (SI) engines. Direct Numerical Simulation (DNS) was used in
Chevillard, Stephane +3 more
core +1 more source
Bio‐Inspired Synthesis of Macroporous Single Crystal Particles as Scattering Agents
Advanced Functional Materials, EarlyView.A general strategy is presented that delivers unique, single‐crystal microparticles that combine submicron macroporosity and uniform particle shapes. A bioinspired approach is used to occlude three distinct types of additives – polystyrene microspheres, polymer vesicles and amino acids – within calcite single crystals, and subsequent thermal annealing ...
Stephanie E. Foster +11 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.Packed hydrogel microfiber (PHM) materials consist of flexible and high aspect ratio hydrogel components that, as a bulk material, are simultaneously mechanically robust and dynamic. Cells cultured in or on PHM scaffolds can be influenced by topographical cues or interact with a dynamic environment that permits cell spreading and multicellular ...
M. Gregory Grewal +7 more
wiley +1 more source
Modeling the Formation of Pollutant Emissions in Large-Bore, Lean-Burn Gas Engines
, 2017 This paper discusses chemical kinetic modeling used to analyze the formation of pollutant emissions in large-bore, lean-burn gas reciprocating engines. Pollutants considered are NOx, CO, HCHO, and UHC.
Philip C. Malte +3 more
core +1 more source