Results 51 to 60 of about 154,181 (269)

The intensification of metallic layered phenomena above thunderstorms through the modulation of atmospheric tides [PDF]

, 2019
We present a multi-instrument experiment to study the effects of tropospheric thunderstorms on the mesopause region and the lower ionosphere. Sodium (Na) lidar and ionospheric observations by two digital ionospheric sounders are used to study the ...
A Huang, AZ Liu, B Yu, B Yu, B Yu, C Haldoupis, C Haldoupis, C Rodger, Chi Wang, CJ Davis, CTR Wilson, D Sentman, DR Marsh, E Kopp, G Lu, H-L Liu, J Carrillo-Sánchez, J Mathews, J Plane, J Ratcliffe, J Whitehead, J Whitehead, J Xu, J Yue, J-F Lamarque, JM Plane, JM Plane, JW Hurrell, LD Boggs, MJ Rycroft, N McBride, O Santolík, R Watson-Watt, T Viehl, TJ Kane, US Inan, V Barta, V Barta, V Barta, V Pasko, W Feng, X Cai, X Dou, X Xue, X Yue, X.-K. Dou   +45 more
core   +1 more source

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

Advanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian, Frédéric Demoly, Mohammad Lakhi, Bernard Rolfe, Mahdi Bodaghi   +4 more
wiley   +1 more source

Recent research progress on planetary waves in the middle and upper atmosphere during sudden stratospheric warmings

地球与行星物理论评
Sudden stratospheric warming (SSW) is a violent atmospheric disturbance in the polar region of the winter hemisphere. The drastic changes in temperature and wind during SSWs are considered to be the main reasons for the abnormal increase in the energy of
Zheng Ma, Yun Gong, Shaodong Zhang
doaj   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

Advanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey, Uwe Hübner, Albane Benardais, Xiaofei Wu, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Henrik Schneidewind, Markus A Schmidt, Virginie Nazabal, Volker Deckert, Jer‐Shing Huang, Wei Wang   +12 more
wiley   +1 more source

SDO Observations of Magnetic Reconnection at Coronal Hole Boundaries

, 2011
With the observations from the Atmospheric Imaging Assembly (AIA) and the Helioseismic and Magnetic Imager (HMI) aboard the \emph{Solar Dynamics Observatory}, we investigate the coronal hole boundaries (CHBs) of an equatorial extension of polar coronal ...
Chae, Chae, Chiuderi Drago, Fisk, Fisk, Kahler, Martens, McIntosh, Peter, Savcheva, Schou, Schwer, Shibata, Shimojo, Title, Wang, Yang, Yang, Zhang, Zhang   +19 more
core   +1 more source

Three‐dimensional Antimony Sulfide Based Flat Optics

Advanced Functional Materials, EarlyView.
This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang, Uwe Hübner, Anne Gärtner, Tao Chen, Joseph Köbel, Franka Jahn, Daniel Repp, Abhrodeep Dey, Henrik Schneidwind, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Matthias Zeisberger, Tanveer Ahmed Shaik, Astrid Bingel, Markus A. Schmidt, Jer‐Shing Huang, Ulf Peschel, Volker Deckert   +18 more
wiley   +1 more source

Open clusters: their kinematics and metellicities

, 2007
We review our work on Galactic open clusters in recent years, and introduce our proposed large program for the LOCS (LAMOST Open Cluster Survey). First, based on the most complete open clusters sample with metallicity, age and distance data as well as ...
Dias, Hou, J. L. Hou, J. L. Zhao, Kharchenko, Kharchenko, L. Chen, Maciel, Mermilliod, R. de Grijs   +9 more
core   +1 more source

Global Ethics and Nanotechnology: A Comparison of the Nanoethics Environments of the EU and China [PDF]

, 2012
The following article offers a brief overview of current nanotechnology policy, regulation and ethics in Europe and The People’s Republic of China with the intent of noting (dis)similarities in approach, before focusing on the involvement of the public ...
A Anderson, A Mnyusiwalla, AA Shvedova, AG Spagnolo, B McKibben, B Trouiller, C Buzea, D Bennett-Woods, D Evans, E Oberdorster, F Zhao, G Gaskell, G Kirsten, H Widdows, HB Friedman, J Schummer, J-H Hsaio, K Choi, K Finkler, K Pandza, L Jia, L Tang, M Oud, R Andorno, R Doubleday, RP Suttmeier, RW Berne, S Jasanoff, S Wood, Sally Dalton-Brown, SH Li, W Adams, W Hu   +32 more
core   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source