Results 91 to 100 of about 3,647,086 (349)

Reference and Thinking on the Innovation and Application of American Ocean Observation Technology

Haiyang Kaifa yu guanli, 2023
Ocean observation technology is an important means to effectively manage ocean affairs and exercise national sovereignty. The autonomy and controllability of ocean observation technology is of great significance to China.
Xiaoyang ZHU, Xiangnan WANG, Kuan LU, Yanbo GAO, Jianling HUO, Huamei WANG, Jianjun SHI, Songtang LIU   +7 more
doaj  

Direct observation and identification of nanoplastics in ocean water

Science Advances
Millions of tons of plastics enter the oceans yearly, and they can be fragmented by ultraviolet and mechanical means into nanoplastics. Here, we report the direct observation of nanoplastics in global ocean water leveraging a unique shrinking surface ...
Seunghyun Moon, Leisha M. A. Martin, Seongmin Kim, Qiushi Zhang, Renzheng Zhang, Wei Xu, Tengfei Luo   +6 more
semanticscholar   +1 more source

Near‐Unity Chiral Lasing Enabled by Quasi‐Bound States in the Continuum

Advanced Materials, EarlyView.
Nanoimprinted chiral array that supports bound states in the continuum is doped with an efficient non‐chiral molecule (Rhodamine‐B) acting as gain medium to produce fully circularly polarized lasing emission. The chiral lasing wavelength can be tuned across the emission band of Rhodamine‐B by adjusting the coating thickness of the TiO2 high refractive ...
Jose Mendoza‐Carreño, Luis A. Pérez, Carlota Ruiz De Galarreta, Théo Rouanet, M. Isabel Alonso, Agustín Mihi   +5 more
wiley   +1 more source

Southern Ocean Observing System (SOOS): Rationale and Strategy for Sustained Observations of the Southern Ocean [PDF]

Proceedings of OceanObs'09: Sustained Ocean Observations and Information for Society, 2010
By connecting the ocean basins and the upper and lower limbs of the ocean overturning circulation, the Southern Ocean plays a critical role in the global ocean circulation, biogeochemical cycles and climate. Limited observations suggest the Southern Ocean is changing: the region is warming more rapidly than the global ocean average; salinity ...
Rintoul, S.R., Speer, K., Sparrow, M., Meredith, Michael, Hofmann, E., Fahrbach, E., Summerhayes, C., Worby, A., England, M., Bellerby, R., Speich, S., Costa, D., Hall, J., Hindell, M., Hosie, G., Stansfield, K., Fukamachi, Y., de Bruin, T., Naveira Garabato, A., Alverson, K., Ryabinin, V., Shin, H.C., Gladyshev, S.   +22 more
openaire   +2 more sources

Facet‐Specific PbS Quantum Dot Passivation Using Halide Perovskites for SWIR Photodetectors

Advanced Materials Interfaces, EarlyView.
PbS quantum dots (QDs) are emerging as powerful short‐wave infrared photodetectors, yet the passivation mechanism of large QDs by perovskites ‐ critical for their stability ‐ remains unexplained. Here, we unveil the ligand structure of CH3NH3PbI3 (MAPI)‐passivated 4‐nm PbS QDs using FTIR, XPS, SEM, NMR, and DFT.
L. Paillardet, M. Gromova, D. Liu, A. S. Vasenko, O. V. Prezhdo, S. Alarab, G. De Paëpe, G. Lefevre, S. Charlot, O. Gourhant, B. Mortini, P. Reiss, J.‐M. Verilhac, D. Aldakov   +13 more
wiley   +1 more source

Ocean Observations for Everyone

Eos, 2019
As the ocean observation community expands its research enterprise, it needs to better engage the end users of its data.
Sarah Cooley, Amy Trice
openaire   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Estimating Ocean Observation Impacts on Coupled Atmosphere‐Ocean Models Using Ensemble Forecast Sensitivity to Observation (EFSO)

, 2023
Ensemble Forecast Sensitivity to Observation (EFSO) is a technique that can efficiently identify the beneficial/detrimental impacts of every observation in ensemble-based data assimilation (DA). While EFSO has been successfully employed on atmospheric DA,
Kalnay, Eugenia, Mote, Safa, Chu‐Chun Chang, Safa Mote, Tse‐Chun Chen, Eugenia Kalnay, Da, Cheng, Chen, Tse-Chun, Cheng Da, Chang, Chu-Chun   +9 more
core   +1 more source

Benchmarking Coaxial and Angular Optical Emission Spectroscopy With Recommendations for Reliable Compositional In Situ Monitoring During Laser Powder Bed Fusion

Advanced Materials Technologies, EarlyView.
ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel, Bastian Jülich, Anna Rosa Ziefuss, Florian Eibl, Stephan Barcikowski   +4 more
wiley   +1 more source

Satellite measurement of ocean turbulence

, 2014
Turbulence and mixing in the surface layer of the ocean is a significant element in the combined ocean-atmosphere system, and plays a considerable role in the transfer of heat, gas and momentum across the air-sea boundary.
George, Simon Gareth
core