Results 121 to 130 of about 48,816 (291)

Tripropellant engine study [PDF]

open access: yes
The potential for converting the space shuttle main engine (SSME) to a dual-fuel, dual-mode engine using LOX/hydrocarbon propellants in mode 1 and LOX/H2 in mode 2 was examined.
Kirby, F. M., Wheeler, D. B.
core   +1 more source

Spherical Skin Model: Stratified Co‐Culture of Fibroblasts and Keratinocytes on Spherical Beads Toward Compound Screening

open access: yesAdvanced Healthcare Materials, EarlyView.
Models of the human skin must combine the relevant biological contents and suitable biomaterials with the correct spatial organization. Performing compound screening on such in vitro models also requires fast and reproducible production methods of the models.
Elisa Lenzi   +7 more
wiley   +1 more source

SiO2‐CaOCME/Poly(Tetrahydrofuran)/Poly(Caprolactone) 3D‐Printed Scaffolds Drive Human‐Bone Marrow Stromal Cell Osteogenic Differentiation

open access: yesAdvanced Healthcare Materials, EarlyView.
3D printed hybrid scaffolds combining bioactive silica–calcium chemistry with elastic polymers guide human bone stem cells to form bone. The scaffolds support cell survival, organization, and invasion while releasing osteogenic ions. Together, architecture and composition drive bone‐specific gene expression, extracellular matrix organization, and ...
David R. Sory   +3 more
wiley   +1 more source

Smart Catheters for Diagnosis, Monitoring, and Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman   +12 more
wiley   +1 more source

Patient‐Derived 3D Bioprinted Cardiac Organoid Constructs Reveal Key Pathological Features of Duchenne Muscular Dystrophy

open access: yesAdvanced Healthcare Materials, EarlyView.
Patient‐derived cardiac organoids reveal key features of Duchenne muscular dystrophy cardiomyopathy, including apoptosis, oxidative stress, calcium handling defects, and mechanical remodeling. By integrating organoids into alginate–gelatin bioprinted constructs, disease phenotypes are organized into scalable 3D cardiac tissues displaying extracellular ...
Vittoria Marini   +15 more
wiley   +1 more source

Comparison of liquid-metal magnetohydrodynamic power conversion cycles [PDF]

open access: yes
Comparison of liquid metal magnetohydrodynamic power conversion ...
Hay, L. G., Weinberg, E.
core   +1 more source

Skin‐Interfaced Therapeutic Patches for Wound Fluid Management and Transdermal Drug Delivery

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents an integrated skin‐interfaced device combining microfluidics, hydrogel film technology, flexible electronics, and iontophoresis‐based transdermal delivery of PDRN to enhance wound healing. The device effectively manages wound fluid, maintains optimal moisture, and non‐invasively delivers therapeutic drugs.
Dongjun Han   +5 more
wiley   +1 more source

Optimization on Performance of Regenerative Brayton Refrigeration Cycle

open access: yesZhileng xuebao, 2006
Based on an irreversible model of a regenerative Brayton refrigeration cycle,expressions for several important performance parameters such as the cooling load,coefficient of performance,and power input,and the optimal relation between the cooling rate ...
林比宏, 杨宇霖, 陈金灿
doaj   +2 more sources

Study on fluid-solid coupled heat transfer characteristics of fuel in regenerative cooling micro-channels

open access: yesKongqi donglixue xuebao
Regenerative cooling serves as a vital thermal protection approach for high-speed flight propulsion systems. Quantitatively revealing the fluid-solid coupled heat transfer rules in cooling micro-channels is crucial for the design and optimization of ...
Zhenhua Ren   +6 more
doaj   +1 more source

A Survey of Hypersonic-Ramjet Concepts [PDF]

open access: yes, 1959
A brief discussion is presented of the major problem areas involved in the development of a hypersonic ramjet engine. Keeping the structural temperature to an acceptably low level is the severest problem expected.
Weber, R. J.
core   +1 more source

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