Results 91 to 100 of about 2,244,284 (230)

Electric Propulsion System for a Maneuverable Orbital Vehicle

, 2003
This paper presents a proposed maneuverable orbital vehicle based on the International Space Station (ISS) equipped with electric thrusters. The vehicle makes use of an external site of the ISS (e.g., the Express Pallet) to host a detachable platform ...
CECCANTI F, MARCUCCIO, SALVO
core  

Time-optimal trajectories to circumsolar space using solar electric propulsion [PDF]

, 2013
The aim of this paper is to explore the capabilities of a solar electric propelled spacecraft on a mission towards circumsolar space. Using an indirect approach, the paper investigates minimum time of transfer (direct) trajectories from an initial ...
Vasile, Massimiliano, Quarta, Alessandro A., Izzo, Dario   +2 more
core   +2 more sources

High-power superconducting electric propulsion for sustainable aviation: architectures, technologies, and future outlook

Propulsion and Energy
Achieving sustainable aviation requires high-power, high-efficiency, and lightweight electric propulsion systems, with superconducting technology showing great potential for significantly enhancing electrical component performance.
Zibing Qu, Mingliang Bai, Wenjiang Yang, Juzhuang Yan   +3 more
doaj   +1 more source

Programmable Pneumatic Actuator System for a Bioinspired Artificial Colon

Advanced Materials Technologies, EarlyView.
A modular soft robotic colon simulator driven by programmable pneumatic actuation is developed to mimic physiological and pathological‐like motility patterns of the large intestine. Finite element–guided design and distributed control enable anatomically realistic deformation for peristalsis, segmentation, and mass movements, supporting capsule ...
Andrew Bickerdike, Bo Tian, Xizheng Fang, Zepeng Wang, Yang Liu, Lucy Adams, Shyam Prasad   +6 more
wiley   +1 more source

Hybrid Additive Manufacturing of Highly Stretchable Bottlebrush Polymer Nanocomposites by Decoupled Extrusion and Photopatterning

Advanced Materials Technologies, EarlyView.
A Hybrid Direct Ink Writing–Digital Light Processing (HDD) strategy decouples material extrusion from shape definition, enabling high‐fidelity additive manufacturing of highly viscous, yield‐stress polymer nanocomposites. Excess ink acts as a removable, self‐supporting scaffold, allowing fabrication of unsupported and embedded complex architectures ...
Shahryar Ramezani Bajgiran, Emmanuel Oduro, Daniel A. Rau, Li‐Heng Cai   +3 more
wiley   +1 more source

Aircraft hybrid-electric propulsion: development trends, challenges and opportunities

Авіаційно-космічна техніка та технологія
Aircraft hybrid-electric propulsion: development trends, challenges and ...
Andrii Humennyi, Liudmyla Kapitanova, Ruslan Zubar, Valerii Bezkorovainyi, Rufat Jafarov   +4 more
doaj   +1 more source

Aerosol Jet Printing of Benzocyclobutene as a Thermally Stable, Low‐Loss Dielectric for Multilayer Microwave Electronics

Advanced Materials Technologies, EarlyView.
Multilayer aerosol jet printed components with a low‐loss, thermally stable dielectric are demonstrated using benzocyclobutene. Ink formulation and in‐line droplet evaporation control support high‐quality, versatile, and stable printing performance. A specialized measurement for low‐loss materials reveals promising microwave properties, which, combined
Md Ramjan Ali, Trent Moritz, Mohammad Tayeb Al Qaseer, Ethan B. Secor   +3 more
wiley   +1 more source

Advanced Design of Naval Ship Propulsion Systems Utilizing Battery-Diesel Generator Hybrid Electric Propulsion Systems

Journal of Marine Science and Engineering
As advanced sensors and weapons require high power, naval vessels have increasingly adopted electric propulsion systems. This study aims to enhance the efficiency and operability of electric propulsion systems over traditional mechanical propulsion ...
Youngnam Park, Heemoon Kim
doaj   +1 more source

Toward Perception‐Native Electronic Skin: Bio‐Inspired In‐/Near‐Sensor and Neuromorphic Computing for Humanoid Robots

Advanced Materials Technologies, EarlyView.
Dense tactile streams from across the humanoid body converge on collide in a central wiring and data bottleneck. By relocating computation closer to and then into the skin itself, near‐ and in‐sensor architectures, together with neuromorphic computing, chart a path toward perception‐native electronic skin, in which the conversion of stimulus into ...
Mijin Kim, Chang‐Jae Beak, Jiyoung Park, Youngdo Jung, Sunjong Oh, Sin‐Hyung Lee, Bo‐Yeon Lee   +6 more
wiley   +1 more source

Optimized Diesel–Battery Hybrid Electric Propulsion System for Fast Patrol Boats with Global Warming Potential Reduction

Journal of Marine Science and Engineering
Fast patrol boats account for a large number among the numerous vessels used in naval fleets. Owing to their operational characteristics, which involve relatively high speeds, they contribute to emissions significantly.
Maydison, Haiyang Zhang, Nara Han, Daekyun Oh, Jaewon Jang   +4 more
doaj   +1 more source