Results 51 to 60 of about 1,426,014 (374)

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

Advanced Energy and Sustainability Research, EarlyView.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira, Md Mahbubur Rahman, Karib Hassan Khan, Md Nizam Uddin, Dewan Hafiz Nabil   +4 more
wiley   +1 more source

Civil aircraft system process assurance application based on ARP4754A

Hangkong gongcheng jinzhan
“Guidelines for development of civil aircraft and systems” is a recommended and accepted standard for the airworthiness of civil aircraft systems，which provides a structured development process assurance method to identify and correct development errors.
ZHOU Pei, LI Jing, XIE Hongman
doaj   +1 more source

Analysis of a civil aircraft wing transonic shock buffet experiment

Journal of Fluid Mechanics, 2019
The physical mechanism governing the onset of transonic shock buffet on swept wings remains elusive, with no unequivocal description forthcoming despite over half a century of research.
Luke Masini, S. Timme, A. Peace
semanticscholar   +1 more source

Aircraft 4D Trajectory Prediction in Civil Aviation: A Review

Aerospace, 2022
Aircraft four dimensional (4D, including longitude, latitude, altitude and time) trajectory prediction is a key technology for existing automation systems and the basis for future trajectory-based operations.
W. Zeng, Xiao Chu, Zhengfeng Xu, Yan Liu, Zhibin Quan   +4 more
semanticscholar   +1 more source

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios, Léon Chiriatti, Simon Poppinga, Thomas Speck, Vincent Le Houérou   +4 more
wiley   +1 more source

Competitiveness Evaluation Method of Supersonic Civil Aircraft Based on Analytic Hierarchy Process

Aerospace
As the demand for long-distance flights continues to increase, supersonic transport (SST) has once again become a hot research topic. However, in the conventional research on competitiveness of civil aircraft, because the flight speeds of various ...
Jiazheng He, Rui Pan, Wenyuan Cheng, Chenxin Guo, Zhijun Meng   +4 more
doaj   +1 more source

Pnma-BN: Another Boron Nitride Polymorph with Interesting Physical Properties

Nanomaterials, 2016
Structural, mechanical, electronic properties, and stability of boron nitride (BN) in Pnma structure were studied using first-principles calculations by Cambridge Serial Total Energy Package (CASTEP) plane-wave code, and the calculations were performed ...
Zhenyang Ma, Zheng Han, Xuhong Liu, Xinhai Yu, Dayun Wang, Yi Tian   +5 more
doaj   +1 more source

Innovative Approach to Hydrogen Purification: A Review on the Role of Metal Hydrides

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Metal hydrides, renowned for their unique hydrogen bonding capabilities, have emerged as pivotal materials in the energy sector, particularly for hydrogen storage and purification applications. Their ability to store hydrogen reversibly under moderate conditions has positioned them at the forefront in hydrogen‐based energy systems. This review
T. Mohammed Faheem, Vinod Kumar Sharma, A. Shaija, Bhaskar Das, Ranjith Krishna Pai   +4 more
wiley   +1 more source

Airworthiness study on civil aircraft engine operating characteristics

Hangkong gongcheng jinzhan
Engine operating characteristics of civil aircraft engines are one of the most basic and complex verification subjects in the airworthiness certification process of the Part 25 "airworthiness standard for transport aircraft" of China civil aviation ...
DENG Tianze, YANG Fei, ZHU Yan, QIU Jian, ZHONG Weixing   +4 more
doaj   +1 more source

Power Management Problem for Civil Aircraft under More Electric Environment

, 2020
The civil aviation industry is moving toward the more electric aircraft (MEA) which is to use electrical power to meet the load demands on multiple aircraft subsystems which are conventionally driven by other power resources.
Yuanchao Yang, Zichen Gao
semanticscholar   +1 more source