Results 241 to 250 of about 61,471 (312)

Effective Performance Modifications for a Composite Rocket Propellant via Coagglomerates of Cyclic Nitramines. [PDF]

ACS Omega
Patil VB, Lewczuk R, Sazeček F, Paziewska P, Stojan P, Bělina P, Zeman S.   +6 more
europepmc   +1 more source

Radiation‐Resistant Kr‐Selective MOF With Record Kr/Xe Selectivity at Elevated Pressure

Advanced Science, EarlyView.
ABSTRACT The separation of Kr/Xe from spent nuclear fuel off‐gas is critical, yet most current adsorbents exhibit Xe‐Kr co‐adsorption under elevated pressures, posing challenges for industrial pressure swing adsorption processes. Herein, we present and evaluate a metal‐organic framework, CALF‐20M‐w, engineered for molecular sieving separation of Kr/Xe ...
Qihang Tian, Yinhui Li, Qingkuan Meng, Shizhen Liu, Yongzheng Wang, Bin Chen, Heping Ma   +6 more
wiley   +1 more source

Integrated Experimental-Numerical Analysis of HTPB Propellant Casting Optimization and Droplet Dynamics. [PDF]

ACS Omega
Guo Z, Rossi R, Xue Y, Wu Y, Fu X.
europepmc   +1 more source

Light‑Driven Propulsion of Graphene Aerogels in Microgravity

Advanced Science, EarlyView.
Ultralight graphene aerogels convert laser light into thrust. Parabolic‐flight experiments directly compare their motion in microgravity and at 1 g, revealing order‐of‐magnitude enhancements in distance, velocity, and transient thrust when weight and friction are removed (∼50 times enhancement).
Omnia Khattab, Rami Elkaffas, Basel Altawil, Omar Alsuwaidi, Afnan Almubashir, Claire Perfetti, Shanavas Shajahan, Marco Braibanti, Sean Swei, Carlo Saverio Iorio, Yarjan Abdul Samad   +10 more
wiley   +1 more source

Vortex cooled thermoplastic chamber thruster for potential application to polymer based 3D printed space propulsion systems. [PDF]

Sci Rep
Aqailan M, Huh J.
europepmc   +1 more source

Bioinspired Morphology‐Decoupled Soft Gripper with Enhanced Bidirectional Grasping Capability

Advanced Science, EarlyView.
Inspired by biological predation, a novel gripper decouples cross‐modal grasping via dual morphological configurations. Synergistically integrating hybrid rigid and soft coupled fingers with a metamaterial palm, the system performs active compliant grasping for static objects and passive cage capture for dynamic targets.
Yedong Huang, Dazhong Yu, Baijin Mao, Fangming Li, Juntian Qu   +4 more
wiley   +1 more source

Numerical simulation of stability of diffusion depth of deterrents into cylindrical nitrocellulose composite under different conditions. [PDF]

BMC Chem
Al-Hetty HRAK, Al-Dulaimi AA, Saleem HM, Kianfar E.   +3 more
europepmc   +1 more source

Mass‐Transport–Engineered CCM Architecture Employing MPL‐Free Carbon Paper and Graphene‐Coated Ni Foam Channels for High‐Temperature PEM Fuel Cells

Advanced Science, EarlyView.
A CCM‐based architectural strategy is introduced for high‐temperature PEM fuel cells, enabling MPL‐free carbon paper gas diffusion layers via decal‐transfer processing. By co‐engineering the CCM, GDL, and a G‐foam flow field, oxygen transport is enhanced while phosphoric‐acid leakage is suppressed, resulting in high power density and stable operation ...
Seongmin Cho, Songi Oh, Mingyu Kim, Jung Hwa Choi, Sunjae Hwang, Ji‐Hoon Jang, Segeun Jang   +6 more
wiley   +1 more source

Environmental impact and sustainability of nanocellulose-based nitrated polymers in propellants. [PDF]

RSC Adv
Ahmad Aljafree NF, Norrrahim MNF, Samsuri A, Wan Yunus WMZ.   +3 more
europepmc   +1 more source