Results 11 to 20 of about 2,016,611 (265)

Review article: Design and evaluation of weather index insurance for multi-hazard resilience and food insecurity [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2023
Ensuring food security against climate risks has been a growing challenge recently. Weather index insurance has been pointed out as a tool for increasing the financial resilience of food production.
M. R. Benso   +19 more
doaj   +1 more source

Influence of a nonlinear degenerate diffusion on an advection-diffusion equation in a diffuse interface framework* [PDF]

open access: yesESAIM: Proceedings and Surveys, 2023
This work is motivated by the modelling a liquid-vapour flows with phase transition describing the evolution of the coolant within an heat exchanger (e.g. the core of a Pressurized Water Reactor).
Faccanoni Gloria, Galusinski Cédric
doaj   +1 more source

A scheme for enabling the ultimate speed of threshold switching in phase change memory devices

open access: yesScientific Reports, 2021
Phase change materials exhibit threshold switching (TS) that establishes electrical conduction through amorphous material followed by Joule heating leading to its crystallization (set).
Nishant Saxena   +2 more
doaj   +1 more source

Control system of 4-DOF palletizing robot based on improved R control multi-objective trajectory planning

open access: yesAdvances in Mechanical Engineering, 2021
To realize efficient palletizing robot trajectory planning and ensure ultimate robot control system universality and extensibility, the B-spline trajectory planning algorithm is used to establish a palletizing robot control system and the system is ...
Jianqiang Wang   +2 more
doaj   +1 more source

Phonons of Phase‐Change Materials

open access: yesphysica status solidi (RRL) – Rapid Research Letters, 2022
Phase‐change materials (PCMs) undergo a reversible transition from a semiconducting to a metallic state, nicely termed “incipient metal.” This transition is driven by a Peierls distortion. A model of covalent bonding is developed in a tight‐binding scheme that accounts for the drastic evolution of some properties of PCMs, among which the Grüneisen ...
Gaspard, Jean-Pierre   +2 more
openaire   +2 more sources

Toward the Simulation of Flashing Cryogenic Liquids by a Fully Compressible Volume of Fluid Solver

open access: yesFluids, 2022
We present a fully compressible single-fluid volume of fluid (VOF) solver with phase change for high-speed flows, where the atomization of the liquid can occur either by the aerodynamics or by the effect of the local pressure. The VOF approximation among
Daniel Angel Palomino Solis   +1 more
doaj   +1 more source

Observation of sublimation of ice using terahertz spectroscopy

open access: yesRoyal Society Open Science, 2020
Although many studies have investigated the phase change of water, few have focused on the sublimation of ice. This study revealed that ice sublimation can be observed using terahertz (THz) spectroscopy.
Keisuke Matsumura   +2 more
doaj   +1 more source

Flowering Mechanisms and Environmental Stimuli for Flower Transition: Bases for Production Scheduling in Greenhouse Floriculture

open access: yesPlants, 2022
The scheduling of plant production is a critical aspect in modern floriculture since nowadays, sales are not oriented toward the recurring holidays as in the past, but always more toward impulse buying, implying a more diverse and constant demand on the ...
Simona Proietti   +3 more
doaj   +1 more source

Numerical Simulation of Solidification Around Staggered Tube Arrangement With Convection – Dominated [PDF]

open access: yesEngineering and Technology Journal, 2008
This work describes and analyses thermal storage system as a phase change problem whichinvolves a fluid flowing inside cooled tubes in a staggered arrangement installed in a rectangularduct surrounded by a phase - change material (water).The temperature ...
Waheed S . Mohammed, Zainab H. Hassan
doaj   +1 more source

A Numerical Model For Performance Prediction Of Dry Cooling Conditions Of Air Cooled Condensers In Thermal Power Plant Stations [PDF]

open access: yesEngineering and Technology Journal, 2010
The present work represents theoretical treatment of dry cooling of the air cooled condensers applied in the power plants technology. A suggested model was built in a form of computer program to predict the effectiveness of the condenser showing the ...
Ali Hussain Tarrad
doaj   +1 more source

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