Results 51 to 60 of about 2,703 (179)

Reallocation of active lithium by regulating electrochemical structural connectivity in anode‐free lithium metal batteries

open access: yesInfoMat, Volume 7, Issue 12, December 2025.
The columnar Li stacks induced by high‐density spatial multidimensional nucleation mode have stable bulk‐phase electronic pathway and interfacial kinetic structure, which significantly reduces the quasi‐linear accumulation of irreversible Li during the cycling process.
Jinqi Zhu   +8 more
wiley   +1 more source

Drone‐Assisted Organ Transport: A Scoping Review of Clinical, Regulatory, and System Readiness

open access: yesClinical Transplantation, Volume 39, Issue 12, December 2025.
ABSTRACT Organ transport remains a critical determinant of transplant success, with delays during transfer prolonging cold ischemia time (CIT) and increasing the risk of delayed graft function or organ discard. Uncrewed aerial vehicles (UAVs) have emerged as a potential means to enhance the speed, predictability, and resilience of transplant logistics.
Robson G. Gilmour, Mekhola Hoff
wiley   +1 more source

Assessing the Probability of Extreme Event Risks During Aircraft Operation in the Context of Urban Air Mobility Development

open access: yesAerospace
Rapid urban air mobility (UAM) developments and new classes of vertical takeoff and landing (eVTOL) aircraft have changed the safety paradigm in urban airspace.
Kayrat Koshekov   +5 more
doaj   +1 more source

Recent Advances in Achieving High Energy/Power Density of Lithium–Sulfur Batteries for Current and Near‐Future Applications

open access: yesBattery Energy, Volume 4, Issue 5, September 2025.
This review comprehensively addresses challenges impeding the current and near‐future applications of Li–S batteries, with a special focus on novel strategies and materials for achieving high energy/power density. Additionally, potential areas for practical applications are explored, placing special emphasis on their lightweight, high energy/power ...
Junyoung Heo   +9 more
wiley   +1 more source

A Systematic Review of Urban Air Mobility Development: eVTOL Drones’ Technological Challenges and Low-Altitude Policies of Shenzhen

open access: yesDrones
Urban Air Mobility (UAM) is emerging as a transformative solution to urban traffic congestion and inefficient ground travel. This paper presents the UAM development of Shenzhen, a pioneering city of low-altitude economy in China.
Jinhong Xu   +4 more
doaj   +1 more source

eVTOL 항공기 사이징을 위한 중량 분율 추정 [PDF]

open access: yes, 2023
학위논문(석사) -- 서울대학교대학원 : 공과대학 항공우주공학과, 2023. 8. 신상준.In recent years, eVTOL aircraft have emerged as environmentally friendly new transportation vehicles, garnering a significant attention in their design.
심성우
core  

High‐Entropy Energy for Self‐Powered Systems

open access: yesSmartSys, Volume 1, Issue 2, June 2025.
ABSTRACT In energy constrained application scenarios, self‐powered systems (SPSs) are gradually emerging as a core technological pathway for enabling distributed intelligent sensing. High‐entropy energy, such as micro‐wind, vibrations, water motion, and human activity, is widely available but difficult to harness due to its low density, randomness, and
Fangjing Xing   +6 more
wiley   +1 more source

A Novel Aerodynamic Modeling Method Based on Data for Tiltrotor evtol

open access: yesApplied Sciences
A data-driven aerodynamic modeling method is proposed to address the problem that traditional modeling methods based on physical mechanisms cannot fully represent the special aerodynamic characteristics of tiltrotor evtol aircraft.
Haiyang Wang, Peng Li, Dongsu Wu
doaj   +1 more source

The Evaluation of Composite Energy Absorbers for Use in UAM EVTOL Vehicle Impact Attenuation [PDF]

open access: yes
The demand for new personal air-taxi services is leading to the development of lightweight Vertical Take-off and Landing (eVTOL) vehicles with electric propulsion for the Urban Air Mobility (UAM) industry.
Hardy, Robin   +2 more
core   +1 more source

Design Strategies for Practical Zinc‐Air Batteries Toward Electric Vehicles and beyond

open access: yesAdvanced Energy Materials, Volume 15, Issue 14, April 8, 2025.
This article highlights the pathways for the design of cathodes, electrolytes, anodes, electrode‐interfaces, cell design configurations, key energy metrics, and fabrication process scalability for transferring lab‐scale to realistic commercial Zn‐air batteries.
Sambhaji S. Shinde   +3 more
wiley   +1 more source

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