Results 51 to 60 of about 292,701 (300)

Solar Climate Features Taking into Account the Morphometric Conditions of the Area and the Possibility of Using Them in Heliotherapy on the Example of the Cieplice and Kołobrzeg Health Resorts (Poland)

Atmosphere, 2021
Global solar radiation is an important atmospheric stimulus affecting the human body and has been used in heliotherapy for years. In addition to environmental factors, the effectiveness of global solar radiation is increasingly influenced by human ...
Dawid Szatten, Mirosław Więcław
doaj   +1 more source

Theory of radiation pressure on a diffractive solar sail

Journal of the Optical Society of America B, 2022
Solar sails propelled by radiation pressure enable space missions that cannot be achieved using chemical rockets alone. Significant in-space propulsion for missions such as a solar polar orbiter may be achieved with a sail that deviates sunlight at a large average angular direction.
openaire   +2 more sources

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Estimating Global Solar Radiation from Empirical Models: An Application

European Mechanical Science, 2021
Solar radiation data are required for many applications and many areas of research. In order to achieve this, several empirical models have been suggested to predict the global solar radiation in Turkey and other countries.
Özgür Balli
doaj   +1 more source

A passive de-orbiting strategy for high altitude CubeSat missions using a deployable reflective balloon [PDF]

, 2011
A de-orbiting strategy for small satellites, in particular CubeSats, is proposed which exploits the effect of solar radiation pressure to increase the spacecraft orbit eccentricity so that the perigee falls below an altitude where atmospheric drag will ...
Colombo, Camilla, Lücking, Charlotte, McInnes, Colin   +2 more
core  

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

Advanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr, Alexander Biewald, Andre Mähringer, Thaddäus J. Koller, Peter Mayer, Markus Döblinger, Achim Hartschuh, Dana D. Medina   +7 more
wiley   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Sap flow of pecan trees in a US Southeastern orchard

Frontiers in Agronomy
Sap flow methods are widely used to estimate water use through transpiration in orchards. This study reports for the first time on pecan tree sap flow properties observed in a micro-irrigated orchard in the southeastern US in 2022 and 2023.
Gengsheng Zhang, Monique Y. Leclerc, Lenny Wells   +2 more
doaj   +1 more source

Geo-engineering using dust grains in heliotropic elliptical orbits [PDF]

, 2011
This paper examines the concept of a Saturn-like Earth ring comprised of dust grains to offset global warming. A new family of non-Keplerian periodic orbits, under the effects of solar radiation pressure and the Earth’s oblateness J2 perturbation, is ...
Bewick, Russell, Colombo, Camilla, Lucking, Charlotte, McInnes, Colin, Sanchez Cuartielles, Joan-Pau   +4 more
core  

Improving solar radiation pressure modeling for GLONASS satellites [PDF]

Journal of Geodesy, 2020
AbstractThe Russian Global Navigation Satellite System (GLONASS) satellites have a stretched body shape and take a specific attitude mode inside the eclipse. Based on previous studies, the new Empirical CODE orbit model (ECOM2) performs better than the classical ECOM model if a satellite has elongated shape or does not maintain yaw-steering mode, and ...
Duan, Bingbing, Hugentobler, Urs, Hofacker, Max, Selmke, Inga, Duan, Bingbing; Institute for Astronomical and Physical Geodesy, Technical University of Munich, Munich, Germany, Hugentobler, Urs; Institute for Astronomical and Physical Geodesy, Technical University of Munich, Munich, Germany, Hofacker, Max; Institute for Astronomical and Physical Geodesy, Technical University of Munich, Munich, Germany, Selmke, Inga; Institute for Astronomical and Physical Geodesy, Technical University of Munich, Munich, Germany   +7 more
openaire   +4 more sources