Results 41 to 50 of about 3,647,086 (349)
The observed North Atlantic Meridional Overturning Circulation, its Meridional Coherence and Ocean Bottom Pressure [PDF]
, 2014 Analyses of meridional transport time series from the Rapid Climate Change–Meridional Overturning Circulation (RAPID MOC) array at 26°N and from Argo float and altimetry data at 41°N reveal that, at semiannual and longer time scales, the contribution ...
Hughes, Chris W. +10 more
core +1 more source
A Fast Calibration Method for Phased Arrays by Using the Graph Coloring Theory
Sensors, 2018 Phased array radars are able to provide highly accurate airplane surveillance and tracking performance if they are properly calibrated. However, the ambient temperature variation and device aging could greatly deteriorate their performance.
Lijie Yang +5 more
doaj +1 more source
A Harmonized Nitrous Oxide (N2O) Ocean Observation Network for the 21st Century
Frontiers in Marine Science, 2019 Nitrous oxide (N2O) is an important atmospheric trace gas involved in tropospheric warming and stratospheric ozone depletion. Estimates of the global ocean contribution to N2O emissions average 21% (range: 10 to 53%).
H. Bange +11 more
semanticscholar +1 more source
Eos, 2017 How measurements from a glider deployed off the coast of Peru are contributing to a much-needed long time-series data set.
openaire +1 more source
Advanced Engineering Materials, EarlyView.This article presents an experimental and numerical modal investigation of composite sandwich structures using surfboards as model systems. By comparing different core materials and reinforcement strategies, the study demonstrates how local stiffeners influence vibrational response and introduce characteristic modal features, highlighting modal ...
Brett Connellan +4 more
wiley +1 more source
Ocean Meteorological Observations [PDF]
Nature, 1872 I PRESUME that anyone looking at the chart on page 43 of this week's NATURE, or reflecting on the circumstances under which barometric observations at sea are ordinarily taken, will agree with me that it would be wiser to give only two places of decimals, and not indicate a degree of refinement which the observations do not warrant.
openaire +4 more sources
Research on Hydrodynamics of Trans-Media Vehicles Considering Underwater Time-Varying Attitudes
Journal of Marine Science and EngineeringA trans-media vehicle is a new type of equipment that can adapt to two environments, water and air, to maintain optimal hydrodynamic and aerodynamic performance.
Shuo Liu +6 more
doaj +1 more source
Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework
Advanced Functional Materials, EarlyView.The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu +13 more
wiley +1 more source
Noise Cancellation Method for Mud Pulse Telemetry Based on Discrete Fourier Transform
Journal of Marine Science and EngineeringMud pulse telemetry (MPT) systems are widely recognized for their effectiveness and are most commonly used to transmit downhole data to the surface in real time. These data facilitate the drilling process and make it more cost-efficient.
Jingchen Zhang +6 more
doaj +1 more source
A Novel Case of Practical Exponential Observer Using Extended Kalman Filter
IEEE Access, 2018 This technical note presents a case of practical exponential observer using extended Kalman filter (EKF) independent of certain restrictions, such as online check and estimation error of initial state.
Daxiong Ji +10 more
doaj +1 more source