Results 141 to 150 of about 501,733 (359)

A multi-element flame retardant containing boron and double-bond structure for enhancing mechanical properties and flame retardancy of epoxy resins

Scientific Reports
A multi-element synergistic flame retardant with double-bond structure was synthesized and added to epoxy resin (EP) to obtain EP composites with high flame retardant and mechanical properties.
Penglun Zheng, Haihan Zhao, Junwei Li, Quanyi Liu, Jian Zhang, Wencai Wu   +5 more
doaj   +1 more source

Improving YOLOv5s Algorithm for Detecting Flame and Smoke

IEEE Access
Object detection methods can be used to detect flames and smoke from images or videos for the identification and exploration of fire. In this paper, an improved YOLOv5s algorithm, called GAM-ASFF-YOLOv5s is proposed, which introduces an attention ...
Li Deng, Jin Zhou, Quanyi Liu
doaj   +1 more source

Safety issues [PDF]

The purpose of the NASA safety review process is to make sure that any system hazards that can endanger the manned flight system are precluded. The systems that address manned flight in a payload safety review process are discussed.
Rohal, R.
core   +1 more source

A Scalable BaTiO3 Nanocoating Strategy for Cost‐Effective and Stable Sulfide‐Based All‐Solid‐State Batteries

Advanced Science, EarlyView.
A rapid and scalable 10 min BaTiO3 (BTO) nanocoating uniformly encapsulates Li‐P‐S‐X sulfide electrolytes, serving as a dielectric “shield” that enhances air stability, reduces cost, and mitigates interfacial degradation. This multifunctional coating enables fast‐charging, durable all‐solid‐state batteries with ultralong cycling stability (>10 000 ...
Wenjin Li, Qingmei Xiao, Shiming Huang, Ruonan Zhang, Hong Yu, Donghao Liang, Kaiyuan Deng, Cheng Liu, Beisen Chen, Puxi An, Guangliang Gary Liu   +10 more
wiley   +1 more source

Numerical study on flashover in aircraft cargo under varying pressure and ventilation conditions

Journal of Safety Science and Resilience
A numerical simulation study was conducted to analyze flashover in a full-scale aircraft cargo compartment, utilizing FDS (Fire Dynamics Simulator) and PyroSim (visual modeling) software. The study aims to: (i) examine how varying heat release rates (HRR)
Xuhong Jia, Shupei Tang, Quanyi Liu
doaj   +1 more source

Helicopter technology benefits and needs. Volume 2: Appendices [PDF]

Vehicle design, avionics and flight systems; safety and reliability; navigation, guidance and flight control; propulsion; auxiliary systems; human factors; and monitoring and diagnostic systems are the technology areas involved in solving operational and
Adams, R. J., Zuk, J.
core   +1 more source

Solvation‐Mediated Shift From Solvent‐ to Anion‐Derived Solid Electrolyte Interphases for Stable Calcium Metal Anodes

Advanced Science, EarlyView.
An ion‐dipole interaction based strategy is proposed to capture thermodynamically unstable solvents and restructure the coordination environment of calcium ions by introducing ionic liquid co‐solvents, thus suppressing excessive solvent decomposition. Therefore, a smooth and dense solid‐electrolyte interphase dominated by inorganic components is formed
Yunyun Gao, Jinlei Zhang, Shu Yang, Mengyuan Zhou, Ruimin Li, Zhenghui Pan, Zheng‐Long Xu, Xiaowei Yang   +7 more
wiley   +1 more source

Evaluation of RSRM case hardware fretting concerns [PDF]

Fretting corrosion was first noted on Shuttle flight STS-26. This flight was the first usage of the Redesigned Solid Rocket Motor (RSRM). The occurrence of fretting has since been observed on both the field and factory joints of the RSRM.
Swauger, Thomas R.
core   +1 more source

Features of the practice of aviation doctors in medical provision of flights safety

, 2019
A. А. Blaginin, O. A. Annenkov, С. В. Трофименко   +2 more
openalex   +2 more sources

In Situ Formation of an In–Zn Interface Layer Enables Aqueous Zinc‐Ions Batteries with High Capacity Retention

Advanced Science, EarlyView.
This work demonstrates an indium zinc oxide (IZO)‐modified separator applied to aqueous zinc ion batteries (AZIBs), which in situ generates an In–Zn interface layer to stabilize the separator/anode region during the cycling process. The In–Zn interface layer provides richer nucleation sites for Zn2+ and suppresses side reactions.
Youwei Jiang, Jinghao Li, Jie Huang, Tan Qiu, Xiuwen Song, Fujun Deng, Yongxue Wang, Yue Ming, Ziping Wu, Qinyou An, Yaoguang Rong   +10 more
wiley   +1 more source