Results 51 to 60 of about 22,298 (311)
Наука и техника, 2015 Nowadays the work is in progress to develop wheeled and caterpillar tractors with electromechanical transmission. Range of changes in transmission gear ratio while using propulsion electric motor depends on mechanical characteristics of a tractor ...
Ch. I. Zhdanovich, N. V. Kalinin
doaj
Feasibility Analysis on Electric Transformation of SW1 Unmanned Aerial Vehicle
Hangkong gongcheng jinzhan, 2020 Electric aircraft is booming in the field of general aviation at home and abroad, and affects the future development direction of aviation. Using electric propulsion technology to transform unmanned aerial vehicle(UAV) can greatly improve the safety ...
ZOU Ning +3 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco +8 more
wiley +1 more source
Small-body encounters using solar sail propulsion
, 2004 Cometary Rendezvous and Flybys have large V requirements, which impose almost unattainable, and sometimes prohibitive, demands on the propellant budget of conventional, chemical propulsion.
Colin R. McInnes +6 more
core +1 more source
Ground Joint Debugging Test System of Electric Propulsion System for Ocean Trawler
Kongzhi Yu Xinxi Jishu, 2017 There are no standards of ground joint debugging test method for ship electric propulsion system at present, and different test items apply to different ship electric propulsion system projects, which give rise to uncertainty of adequate validation.
LU Xiulong +4 more
doaj
Performance Characteristics of Turkey’s First 1,5 kW Hall Thruster Electric Propulsion System
Havacılık ve Uzay Teknolojileri Dergisi, 2020 Due to significant advantages and successful applications, electric propulsion has become a key technology for both scientific and commercial space missions.
Demet Ulusen +7 more
doaj
Journal of Electric Propulsion, 2022 AbstractBased on over sixty years of working in electric propulsion research, a personal memoir attempts to observe the progress of electric propulsion from early explorations to the present successes in accomplishing attractive and practical systems.
openaire +1 more source
From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics
Advanced Functional Materials, EarlyView.We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou +3 more
wiley +1 more source
Trajectory and spacecraft design for a pole-sitter mission [PDF]
, 2014 This paper provides a detailed mission analysis and systems design of a pole-sitter mission. It considers a spacecraft that is continuously above either the North or South Pole and, as such, can provide real-time, continuous and hemispherical coverage of
Heiligers, Jeannette +3 more
core +1 more source
IEEE Access, 2019 As a key component of electric aircrafts, electric propulsion systems provide sufficient thrust for electric aircrafts. By improving its efficiency, the power consumed by the electric propulsion system can be reduced.
Shuli Wang, Shuo Zhang, Shaohua Ma
doaj +1 more source