Results 31 to 40 of about 8,057 (291)

THE PROBLEM OF THE OPTIMIZATION THE DESIGN PARAMETERS AND CONTROL PROGRAMS OF THE CONTROLLED ROCKET WITH SOLID PROPELLANT ROCKET ENGINE

Авіаційно-космічна техніка та технологія, 2017
The complex problem of the simultaneous optimization of the control programs and design parameters of the controlled single-stage rocket with cruise solid propellant rocket engine is formulated.
Светлана Васильевна Сюткина-Доронина
doaj   +1 more source

Biomaterial Strategies for Targeted Intracellular Delivery to Phagocytes

Advanced Functional Materials, EarlyView.
Phagocytes are essential to a functional immune system, and their behavior defines disease outcomes. Engineered particles offer a strategic opportunity to target phagocytes, harnessing inflammatory modulation in disease. By tuning features like size, shape, and surface, these systems can modulate immune responses and improve targeted treatment for a ...
Kaitlyn E. Woodworth, Neal I. Callaghan, Locke Davenport Huyer   +2 more
wiley   +1 more source

Investigation of a Radial Turbines Compatibility for Small Rocket Engine [PDF]

E3S Web of Conferences, 2020
In the radial turbine preliminary design for an expander rocket engine, a comparison was made with axial turbine used in Pratt & Whitney RL10 engine. One of the primary requirements of a liquid propellant rocket engine is the generation of a high thrust,
Leto Angelo
doaj   +1 more source

Structural and Chemical Studies of the Nanoscale Modifications Induced by Swift Heavy Ion Irradiation in SrTiO3 at Grazing Incidence

Advanced Functional Materials, EarlyView.
The nanoscale structural and chemical transformations in SrTiO3 under Swift‐Heavy‐Ion irradiation at grazing incidence are investigated, emphasizing the formation of well‐ordered nanohillocks at the surface of the material, demonstrating significant material decomposition in the created hillocks with: a phase separation of SrO and TiOx, a reduction in ...
Mohammad S. Jamal, Victor Pierron, Tagi Tagiyev, Jérémy Blond, Stéphane Guillous, Clara Grygiel, Stéphane Flament, Bruno Guillet, Zhe Wang, Darrell G. Schlom, Isabelle Monnet, Laurence Méchin, Mamour Sall   +12 more
wiley   +1 more source

Comparative Analysis of Liquid Rocket Engines and Solid Rocket Engines based on Specific-Impulse

, 2023
{"references": ["Title: \"Rocket Propulsion\" (2nd Edition) Authors: Stephen D. Heister and Sven G. Bil\u00e9n Publisher: CRC Press Year: 2017 Relevant sections: \u2022\tChapter 2 - Propellant Characteristics \u2022\tChapter 6 - Liquid Propellant Rocket Engines \u2022\tChapter 7 - Solid Propellant Rocket Motors", "Title: \"Technology for U.S.
openaire   +2 more sources

Carbon Fiber Oxidation in 4D

Advanced Materials, EarlyView.
The oxidation of porous carbon fiber heat shield material at high temperatures is imaged using time‐resolved synchrotron X‐ray microtomography. Resolving the interplay between species diffusion and carbon‐oxygen reaction rate reveals spatially and temporally varying degradation across oxidation regimes, with profound implications for in‐depth material ...
Benjamin M. Ringel, Federico Semeraro, Joseph C. Ferguson, Harold S. Barnard, Bruno Dias, Christian M. Schlepütz, Edward S. Barnard, Sam Schickler, Kara Levy, Shawn Shacterman, Talia Benioff‐White, Julian Davis, Alastair A. MacDowell, Dilworth Y. Parkinson, Francesco Panerai   +14 more
wiley   +1 more source

Efficiency Analysis and Integrated Design of Rocket-Augmented Turbine-Based Combined Cycle Engines with Trajectory Optimization

Energies, 2020
An integrated analysis method for a rocket-augmented turbine-based combined cycle (TBCC) engine is proposed based on the trajectory optimization method of the Gauss pseudospectral. The efficiency and energy of the vehicles with and without the rocket are
Feng Guo, Wenguo Luo, Feng Gui, Jianfeng Zhu, Yancheng You, Fei Xing   +5 more
doaj   +1 more source

Snap and Jump: How Elastic Shells Pop Out

Advanced Robotics Research, EarlyView.
Indent an elastomeric shell and let it go. The spherical shells can store and release the elastic energy. Desktop‐scale experiments, material point method simulation, and analytical theory uncover the fundamental mechanism of soft jumping robots.
Takara Abe, Isamu Hashiguchi, Yukitake Nakahara, Shunsuke Kobayashi, Ryuichi Tarumi, Hidetoshi Takahashi, Genya Ishigami, Tomohiko G. Sano   +7 more
wiley   +1 more source

Single Administration of AAV‐mAtp6v1b2 Gene Therapy Rescues Hearing and Vestibular Disorders Caused by Atp6v1b2‐Induced Lysosomal Dysfunction in Hair Cells

Advanced Science, EarlyView.
Wei et al. establish a hair cell‐specific conditional knockout mouse model (Atp6v1b2fl/fl;Atoh1Cre/+), and demonstrate the importance of Atp6v1b2 for hair cell through maintaining the survival of lysosomes. A single administration of AAV‐ie‐Eh3‐mAtp6v1b2 through scala media at P0‐P2 realizes function compensation and restores hearing and balance ...
Gege Wei, Shiwei Qiu, Xue Gao, Lu Zheng, Yijin Chen, Ying Ma, Haifeng Feng, Jinyuan Yang, Guojie Dong, Huiyi Nie, Weihao Zhao, Xiaoge Li, Guangqin Wang, Wei Xiong, Pu Dai, Yongyi Yuan   +15 more
wiley   +1 more source

Single Cu Atoms Anchored Energetic COFs as Combustion Catalytic Promoters toward Rapid and Concentrated Thermal Decomposition of Ammonium Perchlorate

Advanced Science, EarlyView.
Introducing energetic Cu‐based metal salts into the covalent organic frameworks (COFs) structure, Cu is in single‐atom form anchored to the framework, with energetic anions confined in the COFs structure. The synergistic interaction between single Cu atoms and the anions accelerates the reaction kinetics of ammonium perchlorate (AP) decomposition ...
Meng Zhang, Shan Wang, Xu‐Yang Wang, Zhi‐Peng Wu, Bai‐Suo Ding, Li Yang, Wen‐Chao Tong, Qinglang Ma, Qian‐You Wang   +8 more
wiley   +1 more source