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Vladimir A. Sreckovic, Desanka M. ?ulic, Veljko Vujcic, Zoran R. Mijic and Ljubinko M. Ignjatovic
Strong radiation from solar X-ray flares can produce increased ionization in the terrestrial D-region and change its structure. Moreover, extreme solar radiation in X-spectral range can create sudden ionospheric disturbances and can consequently affect d...
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Jianming Liang, Jianhua Gong, Xiuping Xie and Jun Sun
Solar3D is an open-source software application designed to interactively calculate solar irradiation on three-dimensional (3D) surfaces in a virtual environment constructed with combinations of 3D-city models, digital elevation models (DEMs), digital sur...
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Julio César González-Navarrete,Julián Salamanca,Ingrid Mónica Pinzón-Verano
Pág. 155 - 164
Due to the lack of models to predict the ozone layer even after an ample range of total column ozone (TCO) measurements around the globe, a direct relationship between solar activity by means of sunspot number observations and total ozone satellite data ...
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Eloi Gasparin, Eduardo Godoy de Souza, Miguel Angel Uribe-Opazo, Rafaela Nicolau dos Santos, Vanderlei Arthur Bier, Davi Marcondes Rocha
Pág. 417 - 423
Since orange is the most produced and consumed fruit in Brazil and since its position on the tree may influence its physical and chemical attributes, current assay modeled a three-dimension spatial variability of total soluble solids (TSS) and ascorbic a...
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Gabriele Di Bona and Andrea Giacobbe
Here, we study three fundamental climatic phenomena: The seasonal lag, the diurnal lag, and the asymmetry of daily temperature variation. We write a nonlinear ODE based on an energy balance for surface temperature and humidity. The model focuses on small...
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Halil Ersin Soken, Shin-ichiro Sakai, Kazushi Asamura, Yosuke Nakamura, Takeshi Takashima and Iku Shinohara
JAXA?s ERG (Exploration of Energization and Radiation in Geospace) Spacecraft, which is nicknamed Arase, was launched on 20 December 2016. Arase is a spin-stabilized and Sun-oriented spacecraft. Its mission is to explore how relativistic electrons in the...
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Syahrim Azhan Ibrahim and Eiki Yamaguchi
Nanosatellites, like CubeSat, have begun completing advanced missions that require high power that can be obtained using deployable solar panels. However, a larger solar array area facing the Sun increases the solar radiation torque on the satellite. In ...
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Gianluigi Bovesecchi, Sandra Corasaniti, Girolamo Costanza and Maria Elisa Tata
This work deals with the feasibility and reliability about the use of shape memory alloys (SMAs) as mechanical actuators for solar sail self-deployment instead of heavy and bulky mechanical booms. Solar sails exploit radiation pressure a as propulsion sy...
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Ismael Orozco, Félix Francés and Jesús Mora
The success of hydrological modeling of a high mountain basin depends in most case on the accurate quantification of the snowmelt. However, mathematically modeling snowmelt is not a simple task due to, on one hand, the high number of variables that can b...
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Hongyu Wang, Yiren Ding, Qiushuang Yao, Lulu Ma, Yiru Ma, Mi Yang, Shizhe Qin, Feng Xu, Ze Zhang and Zhe Gao
Cotton yield estimation is of great practical significance to producers, allowing them to make rational management decisions. At present, crop yield estimation methods mainly comprise traditional agricultural yield estimation methods, which have many sho...
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Andrea Magarelli, Andrea Mazzeo and Giuseppe Ferrara
As the world seeks alternatives to fossil fuels, agrivoltaics offer a promising solution by integrating solar panels with farming practices. This review examines three key agrivoltaic setups?static tilted, full-sun tracking, and agronomic tracking?dissec...
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Alexandra Ionelia Manolache, Gabriel Andrei and Liliana Rusu
The development of novel solar power technologies is regarded as one of the essential solutions to meeting the world?s rising energy demand. Floating photovoltaic panels (FPV) have several advantages over land-based installations, including faster deploy...
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Ochuko Kelvin Overen, Edson Leroy Meyer and Golden Makaka
Solar radiation provides the most significant natural energy in buildings for space heating and daylighting. Due to atmospheric interference, solar radiation received at the Earth?s surface consists of direct beam and diffuse radiation, where diffuse can...
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Sandra L. Ibáñez-Calero,Kelly E. Loayza Afonso
Three plants collected at the Zongo Valley were evaluated for textile dyeing applications. The species selected were extracted following acidic and basic procedures to obtain colored samples, that were submitted to direct and indirect (with mordents) dye...
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Jaroslav Hofierka, Jozef Boglarský, ?tefan Kolecanský and Anastasia Enderova
Land surface temperature (LST) in urban areas is a dynamic phenomenon affected by various factors such as solar irradiance, cloudiness, wind or urban morphology. The problem complexity requires a comprehensive geographic information system (GIS)-based ap...
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Ganapathy Ramesh, Jaganathan Logeshwaran, Thangavel Kiruthiga and Jaime Lloret
In general, reliable PV generation prediction is required to increase complete control quality and avoid potential damage. Accurate forecasting of direct solar radiation trends in PV power production could limit the influence of uncertainties on photovol...
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Justin R. Mansell, John M. Bellardo, Bruce Betts, Barbara Plante and David A. Spencer
The propellantless thrust of solar sails makes them capable of entirely new classes of missions compared to conventional or electric engines. Initiated in 2010, the Planetary Society?s LightSail program sought to advance solar sail technology with the fl...
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Bo Ren, Yu Jiang, Hengnian Li and Chunsheng Jiang
This paper focuses on the existence and control of particular types of orbits around asteroid 4 Vesta, including Sun-synchronous orbits, orbits at the critical inclination, repeating ground-track orbits, and stationary orbits. J2, J3, and J4 terms are co...
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Girolamo Costanza, Giovanni Ottavio Delle Monache, Maria Elisa Tata and Stefano Filosi
The next generation lunar reflector (NGLR) experiment is one of the experiments selected by NASA in the framework of the commercial lunar payload services (CLPS) initiative. The experiment, inspired by the lunar laser ranging (LLR) experiments of the Apo...
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Gianluigi Bovesecchi, Sandra Corasaniti, Girolamo Costanza, Fabrizio Paolo Piferi and Maria Elisa Tata
Space vehicles may be propelled by solar sails exploiting the radiation pressure coming from the sun and applied on their surfaces. This work deals with the adoption of Nickel-Titanium Shape Memory Alloy (SMA) elements in the sail deployment mechanism ac...
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