Observing the bottom density current over a shelf using an Argo profiling float

2013 ◽  
Vol 40 (5) ◽  
pp. 910-915 ◽  
Author(s):  
Ivica Vilibić ◽  
Hrvoje Mihanović
Keyword(s):  
Density Current ◽  
Profiling Float ◽  
Argo Profiling Float

Energy recovery and conservation utilizing seawater pressure in the working process of Deep-Argo profiling float

Energy ◽  
2020 ◽  
Vol 195 ◽  
pp. 116845 ◽  
Author(s):  
Gang Xue ◽  
Yanjun Liu ◽  
Weiwei Si ◽  
Chen Ji ◽  
Fengxiang Guo ◽  
...  
Keyword(s):  
Energy Recovery ◽  
Working Process ◽  
Profiling Float ◽  
Argo Profiling Float

scholarly journals Energy Consumption Modeling and Sensitivity Analysis for Deep-Argo Otarriinae Profiling Float

2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
Weiwei Si ◽  
Yifan Xue ◽  
Yanjun Liu ◽  
Zhitong Li ◽  
Gang Xue
Keyword(s):  
Sensitivity Analysis ◽  
Energy Consumption ◽  
Working Time ◽  
Global Ocean ◽  
Design Parameters ◽  
Important Indicator ◽  
Profiling Float ◽  
Diving Depth ◽  
Energy Consumption Modeling ◽  
Argo Profiling Float

Deep-Argo Otarriinae profiling float is a new type of Argo profiling float that has a maximum diving depth of more than 4,000 m. It can collect ocean scientific data all-weather and uninterruptedly, which provides reliable data support for the global ocean scientific research. The working time of Deep-Argo profiling float is an important indicator of its practicality and economy, and it is clear that the energy consumption is a key factor in determining its working time. In this paper, the single profile energy consumption model with 19 parameters of Deep-Argo Otarriinae is established and the main effect indices and total effect indices of the energy consumption parameters to energy consumption are calculated using Sobol’ sensitivity analysis method, aiming to find the parameters that have the greatest impact on energy consumption. The results show that the gliding angle, the diving depth, and the gliding speed have a significant impact on energy consumption of Deep-Argo Otarriinae. The results of simulation have a good match with the actual application and have certain reference significance for the determination of the design parameters and the selection of the navigation parameters. This paper also provides a new idea of multiparameter energy consumption modeling for underwater equipment using buoyancy regulation.

Multi-objective optimization of the shell in autonomous intelligent argo profiling float

2019 ◽  
Vol 187 ◽  
pp. 106176 ◽  
Author(s):  
Zhitong Li ◽  
Yanjun Liu ◽  
Fengxiang Guo ◽  
Gang Xue ◽  
Shizhen Li ◽  
...  
Keyword(s):  
Multi Objective Optimization ◽  
Profiling Float ◽  
Multi Objective ◽  
Argo Profiling Float

scholarly journals Exothermic dark mesons in light of electron recoil excess at XENON1T

2021 ◽  
Vol 2021 (4) ◽  
Author(s):  
Soo-Min Choi ◽  
Hyun Min Lee ◽  
Bin Zhu
Keyword(s):  
Dark Matter ◽  
Inelastic Scattering ◽  
Small Mass ◽  
Density Current ◽  
Flavor Symmetry ◽  
Color Group ◽  
Dark Sector ◽  
The Standard Model ◽  
Electron Recoil ◽  
Relic Density

Abstract We consider a novel mechanism to realize exothermic dark matter with dark mesons in the limit of approximate flavor symmetry in a dark QCD. We introduce a local dark U(1)′ symmetry to communicate between dark mesons and the Standard Model via Z′ portal by partially gauging the dark flavor symmetry with flavor-dependent charges for cancelling chiral anomalies in the dark sector. After the dark local U(1)′ is broken spontaneously by the VEV of a dark Higgs, there appear small mass splittings between dark quarks, consequently, leading to small split masses for dark mesons, required to explain the electron recoil excess in XENON1T by the inelastic scattering between dark mesons and electron. We propose a concrete benchmark model for split dark mesons based on SU(3)L× SU(3)R/SU(3)V flavor symmetry and SU(Nc) color group and show that there exists a parameter space making a better fit to the XENON1T data with two correlated peaks from exothermic processes and satisfying the correct relic density, current experimental and theoretical constraints.

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