Results 51 to 60 of about 506,204 (184)

Transcranial Ultrasound in the Helicopter Emergency Medical Services—A Feasibility Study

Journal of Neuroimaging, Volume 36, Issue 4, July/August 2026.
ABSTRACT Background and Purpose Transcranial color‐coded Doppler (TCCD) is a noninvasive, widely available diagnostic method that may identify large vessel occlusion (LVO) in acute stroke patients. This study aimed to explore whether helicopter emergency medical services (HEMS) physicians could use TCCD in a prehospital setting to identify the proximal
Ingrid N. Rognes, Pål C. W. Morberg, Henriette S. Jæger, Marius Rehn, Kristine Stø, Lars Alteheld, Else Charlotte Sandset, Maren R. Hov, Karianne Larsen   +8 more
wiley   +1 more source

Is That a Threat? How Types of Stakeholder and Reputational Threat Matter for Gaining Influence in Regulatory Rulemaking

Regulation &Governance, Volume 20, Issue 3, Page 1119-1135, July 2026.
ABSTRACT This paper assesses what type of comments are most useful to what type of stakeholder in gaining influence during public consultations. Theoretically, the paper approaches stakeholders' consultation comments as reputational threats from key audiences that the agency needs to respond to.
Rik Joosen
wiley   +1 more source

Preliminary Master Minimum Equipment List Fuzzy Comprehensive Evaluation Method of Civil Aircraft

Hangkong gongcheng jinzhan, 2021
it is an important link to verify and determine the candidate items of the preliminary master minimum equipment list(PMMEL)for the main civil aircraft manufacturer passing through airworthiness certification.In this paper a new PMMEL fuzzy comprehensive ...
GU Zhiwu, DU Qianyi, FENG Yunwen, XUE Xiaofeng   +3 more
doaj   +1 more source

Integration of UAS in the civil airworthiness regulatory system: present and future [PDF]

, 2010
The last years are witnessing a number of initiatives worldwide devoted to assess the safety levels of the unmanned aircraft. These initiatives are very heterogeneous; some of them are centred in airworthiness aspects while others focus on operations ...
Garcia Julia, Eduardo, Cuerno Rejado, Cristina, Martinez-Val Peñalosa, Rodrigo   +2 more
core  

Innovating Aircraft Repair Processes: The Role of Digitalization in Sustainability

Advanced Engineering Materials, Volume 28, Issue 7, 8 April 2026.
This research explores how digitalization—by storing detailed non‐destructive testing data in structured DICONDE databases and creating a standard data model of the component—innovates aviation maintenance and repair processes. Coupled with a developed state‐based simulation model, it enables data‐driven, sustainable repair strategies that reduce waste,
Johanna Aigner, Geo Jacob, Florian Raddatz, Gerko Wende   +3 more
wiley   +1 more source

Airworthiness Design and Analysis of Compliance Demonstration forReversing System

Hangkong gongcheng jinzhan, 2018
Most of the modern turbojet airplanes are installed with reversing system, which can promote the economy, availability and safety of airplanes. However, failures of reversing system may have significant effect on airplane and people on-board and on the ...
Qiu Chaoqun, Sun Shidong
doaj   +1 more source

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

Advanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
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

Analysis and research on airworthiness certification technology for helicopter aeromedical rescue system

Hangkong gongcheng jinzhan
The aeromedical rescue system is the necessary equipment for helicopter medical rescue, and retrofitting the medical rescue system will directly affect the safe operation of the aircraft, requiring strict airworthiness certification procedures ...
SHI Kaiwen, LI Xiaoxue
doaj   +1 more source

Optimization in Conceptual Design of a BWB UAV Using an Adaptive Kriging‐Based Surrogate Model

Engineering Reports, Volume 8, Issue 2, February 2026.
An adaptive Kriging‐based framework for Blended Wing Body UAV optimization is presented. The exploitation‐oriented strategy yields a 14.5% range improvement, while sensitivity analysis identifies fuel mass as the dominant parameter for efficient conceptual design. ABSTRACT To improve optimization efficiency in the conceptual design of Blended Wing Body
Xinshi Suo, Yu Wang, Zhouwei Fan, Tengzhou Xu   +3 more
wiley   +1 more source

Research on uniformity design and airworthiness verification of civil aircraft emergency exit

Journal of Physics: Conference Series
Abstract Civil aircraft emergency exits should meet the requirement of 25.807 (e) uniformity. This paper gives a set of methods and examples to calculate the uniformity of emergency exit layout, clarifies the verification method of emergency exit uniformity, and puts forward the guiding significance for the design of emergency exit ...
Ling Yan, Yongfeng Ren, Xuanzhe Tian
openaire   +1 more source