Results 21 to 30 of about 78,268 (264)

Revisiting Cent-Fonts Fluviokarst Hydrological Properties with Conservative Temperature Approximation

open access: yesHydrology, 2017
We assess the errors produced by considering temperature as a conservative tracer in fluviokarst studies. Heat transfer that occurs between karstic Conduit System (CS) and Porous Fractured Matrix (PFM) is the reason why one should be careful in making ...
Philippe Machetel, David A. Yuen
doaj   +1 more source

Volume 5 Overview: Recent progress in Remote Sensing of Earth’s Energy Budget

open access: yes, 2018
The Earth’s climate is largely determined by its energy budget, that is, the energy it receives from the Sun and the energy it loses when it reflects and reradiates that energy back into outer space.
Liang, S., S. Liang
core   +1 more source

Wind Turbine Performance in Very Large Wind Farms: Betz Analysis Revisited

open access: yesEnergies, 2020
The theoretical limit for wind turbine performance, the so-called Betz limit, arises from an inviscid, irrotational analysis of the streamtube around an actuator disk.
Jacob R. West, Sanjiva K. Lele
doaj   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

open access: yesAdvanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi   +3 more
wiley   +1 more source

A comparison between long term measured and modeled sensible heat and momentum fluxes using a High Resolution Limited Area Model (HIRLAM )

open access: yesMeteorologische Zeitschrift, 2000
The objective of this paper is to study the surface fluxes obtained by a High Resolution Limited Area Model (HIRLAM), used for weather forecasts. The question arises whether the quality of the fluxes are high enough to make HIRLAM a proper tool for ...
Anna Rutgersson
doaj   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

open access: yesAdvanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal   +3 more
wiley   +1 more source

Evaluating a Coupled Phenology‐Surface Energy Balance Model to Understand Stream‐Subsurface Temperature Dynamics in a Mixed‐Use Farmland Catchment

open access: yesWater Resources Research, 2019
Stream temperature is a key variable that controls both physical and biogeochemical processes in aquatic ecosystems. Complex physical interactions between land surface and subsurface processes make accurate simulations of stream temperature dynamics at ...
Han Qiu   +5 more
doaj   +1 more source

Research Progress on Climate Effect and Influence Mechanism of Photovoltaic Systems

open access: yesGaoyuan qixiang, 2022
Due to the global environmental crisis, energy crisis and the urgent need to deal with climate change, governments around the world have increased the use of renewable energy.The progress of photovoltaic technology and the support of government policies ...
Junxia JIANG, Xiaoqing GAO
doaj   +1 more source

Oxygen‐Tunnel Indium Tin Oxide Vertical Channel Transistors with Enhanced Current Density and Reliability for Monolithic 3D Compute‐In‐Memory Systems

open access: yesAdvanced Functional Materials, EarlyView.
Oxygen‐tunnel (OT) indium tin oxide (ITO) vertical channel transistors (VCTs) enable reliable, high‐density gain‐cell memory for monolithic 3D integration. A sandwiched SiN/SiO2/SiN OT stack selectively regulates oxygen transport, suppressing parasitic electrode oxidation while stabilizing channel oxygen vacancies, thereby suppressing carrier injection
Hyeonho Gu   +17 more
wiley   +1 more source

Effects of Dynamical and Diabatic Processes on Stationary and Transient Kelvin Waves

open access: yesJournal of Advances in Modeling Earth Systems
Atmospheric Kelvin waves (KWs) are influenced by both tropical convective heating and dry dynamical processes, but the relative contributions of these mechanisms remain uncertain.
K. M. Holube   +3 more
doaj   +1 more source

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