Results 51 to 60 of about 11,923 (261)

Surface‐Spin‐Induced Magnetic Loss Enhancement in Ultralight Electromagnetic Absorbers

Advanced Science, EarlyView.
Fe3O4 nanoparticles with different hollow rates were synthesized to demonstrate the key role of surface moment in magnetic loss process. Using the same volume filling ratio, the 54.1% hollow Fe3O4 absorber represents about 20% enhancement in the imaginary part (μ'') than solid particles due to the coexisting magnetic resonance of inside and outside ...
Ruimin Ren, Ke Yang, Chichong Lu, Song Ma, Bowen Zheng, Zhenhui Ma   +5 more
wiley   +1 more source

Aerosol Characteristics of Dust Weather on North Slope of the Qilian Mountains

应用气象学报
Understanding the vertical distribution characteristics of aerosols in dust weather is crucial for further discussion of aerosol-cloud interaction and its impacts on weather and climate. In response to a dust storm in Northwest China on 6 September 2023,
Xi Lizong, Ba Li, Pang Zhaoyun, Li Baozi, Huang Shan   +4 more
doaj   +1 more source

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

Advanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais, S. Peng, J. Chang, F. Li, Q. Zhu, K. Yuan, G. Hugelius, H. Li, Y. Cai, F. Chevallier, K. Tibrewal, E. A. Kort, K. Arndt, J. Watts, B. Buma, N. Besic, P. I. Palmer, H. Cadillo‐Quiroz, E. Euskirchen, M. J. Gondwe, A. Hoyt, R. Jackson, S. Malone, D. Monteverde, S. Natali, M. Ramonet, C. Rey‐Sanchez, L. B. Sagang, E. A. G. Schuur, R. Vargas, R. Varner, Z. Zhang, B. Poulter   +32 more
wiley   +1 more source

Cloud Observation by Aircraft During Dust Storms

应用气象学报
Aerosols influence cloud microphysical properties by acting as cloud condensation nuclei and ice nuclei. Aerosols have the potential to modify the location and intensity of precipitation by changing cloud properties.
Ma Xincheng, Bi Kai, Wang Fei, Gao Yang, Huang Mengyu   +4 more
doaj   +1 more source

Ultrafine aerosol particles in aircraft plumes: In situ observations

Geophysical Research Letters, 1998
Measurements of ultrafine particles in the near field of the DLR research aircraft ATTAS using low (0.02 g/kg fuel) and high (2.7g/kg) fuel sulfur contents (FSCs) are presented. Soot emissions of ∼ 1015/kg show no significant dependence on FSC. Strong evidence is found that ∼ 1/3 of the soot particles must be involved in ice nucleation in contrails, in
Schröder, F.P., Kärcher, B., Petzold, A., Baumann, R., Busen, R., Hoell, C., Schumann, U.   +6 more
openaire   +2 more sources

Additive Manufacturing of High‐Performance Polymers for Extreme Environments

Advanced Science, EarlyView.
Additive manufacturing of high‐performance polymers for extreme environments is critically reviewed through an integrated chemistry‐processing‐structure‐property‐qualification framework. The review compares fused filament fabrication, selective laser sintering, and direct ink writing, linking rheology and thermal history to crystallization, defect ...
Md Tofazzal Hossain, Mohammed Intishar Nur, Md Shajedul Hoque Thakur, Indranil Dey, Md Mesbahul Maruf, Md Jahid Hasan, Suryasarathi Bose, Muhammad M. Rahman   +7 more
wiley   +1 more source

Self‐Sustaining Sensing Systems: Integration Strategies and Signal–Power Matching in Energy‐Harvesting Electronics

Advanced Science, EarlyView.
Energy‐harvesting‐integrated sensors couple ambient energy conversion with sensing, processing, and wireless communication. This review organizes recent progress through integration architectures and operating principles, revisiting co‐packaged, monolithic, and co‐functional designs together with always‐on, event‐driven, and multi‐modal sensing modes ...
Taehyun Park, Ki‐Yoon Park, Yeonho Choi, Dong‐Myeong Shin, Hong‐Joon Yoon, Hocheon Yoo   +5 more
wiley   +1 more source

APPLICATION OF THE GPS/EGNOS SOLUTION FOR THE PRECISE POSITIONING OF AN AIRCRAFT VEHICLE [PDF]

Scientific Journal of Silesian University of Technology. Series Transport, 2017
The results of research concerning the implementation of the GNSS technique in the area of air navigation are presented in this article. In particular, a research test was conducted for the purposes of checking the functioning of a satellite-based ...
Kamil KRASUSKI
doaj   +1 more source

Sandwich‐Structured Aramid Composite Papers with Heterogeneous Dielectric Layers for Integrated Corona Resistance and Thermal Conductivity

Advanced Science, EarlyView.
A sandwich‐structured aramid composite paper was designed to integrate high corona resistance and thermal conductivity. The fluorinated graphene/aramid surface layers effectively dissipate space charges to suppress corona discharge. Meanwhile, the boron nitride nanotube/aramid core layer constructs continuous heat‐conduction pathways.
Jun‐Wen Ren, Jun‐Xue Chen, Ying‐Ying Tong, Zi Wang, Jia‐Cheng Zhang, Lin Zhang, Bo Zhang, Fan Zhang, Guo‐Long Wang, Jun‐Wei Zha, Shen‐Li Jia   +10 more
wiley   +1 more source

Proving Ground Testing of an Anti-Aircraft Artillery Evaluation System [PDF]

Problemy Mechatroniki, 2017
This paper is an elaboration of the design, operating principle, and a selection of proving ground test results of an anti-aircraft artillery acoustic evaluation system.
Jan PIETRASIEŃSKI, Dariusz RODZIK, Stanisław GRZYWIŃSKI, Jakub MIERNIK   +3 more
doaj   +1 more source