Results 51 to 60 of about 956,080 (280)

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

Advanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han, Shuvra Mondal, Sungkeun Han, Chan‐Hwi Eom, Venkata Ramesh Naganaboina, Suk‐Won Hwang   +5 more
wiley   +1 more source

The flow field in the slender combustion chambers of solid propellant rockets [PDF]

, 2004
We analyse the near inviscid flow field generated in a slender non-axisymmetric cylindrical cavity by the gasification and combustion reactions of a surrounding solid propellant grain.
Liñán Martínez, Amable, Kurdyumov, V., Soler, Juan   +2 more
core  

Numerical simulation study of composite solid propellant small scale gap test

AIP Advances, 2021
The small scale gap test is a very important method to study the sensitivity characteristics of a composite solid propellant under shock waves. In this paper, the small scale gap test is taken as the research object.
Hong-fu Qiang, Yu-xiang Liu, Du-dou Wang, Xue-ren Wang, Biao Geng, Guang Wang   +5 more
doaj   +1 more source

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

Advanced 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, Arielle Berman, Laura Schwendeman, Ferdows Afghah, Seanbiron Johnson, Ritu Raman   +5 more
wiley   +1 more source

Rubber Impact on 3D Textile Composites [PDF]

, 2011
A low velocity impact study of aircraft tire rubber on 3D textile-reinforced composite plates was performed experimentally and numerically. In contrast to regular unidirectional composite laminates, no delaminations occur in such a 3D textile composite ...
DUPLESSIS KERGOMARD, Yann, DAU, Frédéric, Benoit Malherbe, Sebastian Heimbs, Frederic Dau, VAN DEN BROUCKE, Björn, Björn Van Den Broucke, MALHERBE, Benoit, Yann Duplessis Kergomard, HEIMBS, Sebastian   +9 more
core   +1 more source

Innovative boron nitride-doped propellants

Defence Technology, 2016
The U.S. military has a need for more powerful propellants with balanced/stoichiometric amounts of fuel and oxidants. However, balanced and more powerful propellants lead to accelerated gun barrel erosion and markedly shortened useful barrel life.
Thelma Manning, Richard Field, Kenneth Klingaman, Michael Fair, John Bolognini, Robin Crownover, Carlton P. Adam, Viral Panchal, Eugene Rozumov, Henry Grau, Paul Matter, Michael Beachy, Christopher Holt, Samuel Sopok   +13 more
doaj   +1 more source

Biodegradable 3D‐Printable and Coatable Antifouling Composites for Marine Applications

Advanced Functional Materials, EarlyView.
Marine biofouling damages submerged surfaces and raises greenhouse gas emissions. Biodegradable antifouling biocomposites were developed by hot‐mixing beeswax, Tween 80, and calcium stearate or stearic acid. Adjusting the component ratio enables processing via hot‐pressing, 3D‐printing, or dip‐coating.
Gabriele Corigliano, Lorenzo Ravelli, Martina Nardi, Ruowen Tu, Elena Bellini, Valerio Isa, Carlo Filippeschi, Roberta Finazzi, Luca Ceseracciu, Niloofar Paknezhad, Vincenzo Scribano, Paolo Galli, Silvia Lavorano, Simone Montano, Barbara Mazzolai, Marco Contardi, Pietro Cataldi, Athanassia Athanassiou   +17 more
wiley   +1 more source

Behaviour and design of composite beams subjected to negative bending and compression [PDF]

, 2012
This paper investigates the behaviour of steel–concrete composite beams subjected to the combined effectsof negative bending and axial compression. For this study, six full-scale tests were conducted on compositebeams subjected to negative moment while ...
Uy, Brian (R9735), Vasdravellis, George; id_orcid, Kirkland, Brenadan, Uy, Brian, Vasdravellis, George (R16696), Tan, Ee Loon (R14425), Tan, Ee Loon, Kirkland, Brendan (S24876)   +7 more
core   +1 more source

Advancing Human Skin Equivalents: The Crucial Role of Neurovascular Integration

Advanced Healthcare Materials, EarlyView.
This review discusses the importance of integrating vascular and peripheral nerve systems into human skin equivalents (HSEs) to better recapitulate native skin physiology. Recent advances in vascularized, innervated, and neurovascularized HSEs are highlighted, together with emerging bioengineering strategies, current challenges, and future ...
Hao Wu, Lorenzo Moroni, Nicolas Lebonvallet, Vincent Flacher, Paul Wieringa   +4 more
wiley   +1 more source

Experimental Studies on Composite Propellants

The Journal of the Society of Chemical Industry, Japan, 1960
酸化剤に過塩素酸アンモン,燃料結合剤にポリエステル樹脂またはエポキシーポリスルフィド樹脂を用いたコンポジット推進薬の物性および燃焼特性を実験的に検討した。この結果次の点を明らかにした。すなわち燃料結合剤として用いる樹脂の性質に極端な差がないかぎり,成形推進薬の物性は特に差は認められない。また燃焼特性に関しては,これらの推進薬の圧力指数はいずれも小さく,したがって燃焼の安定性を期し得るが,面積比等しい時の比推力を考える時,エポキシ-ポリスルフィド系推進薬の方がポリエステル系推進薬よりすぐれているといえよう。
Ken-ichi Akimitsu, Tsutomu Kakutani, Ikuo Harada, Takao Yokoyoma   +3 more
openaire   +2 more sources