Results 61 to 70 of about 246,226 (278)

Evaluation of Flow Parameters around Tracking Solar Collectors with Different Collector Geometry and Different Operation Conditions [PDF]

Engineering and Technology Journal, 2014
In the current study, the flow parameters around the tracking solar collectors were evaluated. Different site conditions with different tracking solar collector's geometry are combined and investigated. Site conditions included different wind loading due
Khalid Hameed Hussein
doaj   +1 more source

Improvement of the performance of parabolic trough solar concentrator using freeform optics and CPV/T design

AIMS Energy, 2021
The developmental tendency of parabolic trough collector (PTC) is larger aperture area for energy harvest and novel optical design for higher solar concentration.
Xian-long Meng , Cun-liang Liu, Xiao-hui Bai , De-hai Kong, Kun Du   +4 more
doaj   +1 more source

Palaeoglacier reconstruction and dynamics of Cordillera Vilcanota in the tropical high Peruvian Andes

Earth Surface Processes and Landforms, Volume 51, Issue 2, February 2026.
We provide a geomorphological analysis of Cordillera Vilcanota and use morphostratigraphic principles to reconstruct palaeo icefield extent and palaeoglacier readvances, likely during the Antarctic Cold Reversal and Younger Dryas. We find evidence of temperate and polythermal ice margins, with limited glaciofluvial landform generation.
Bethan Davies, Tom Gribbin, Owen King, Tom Matthews, Jan R. Baiker, Wouter Buytaert, Jonathan Carrivick, Fabian Drenkhan, Juan‐Luis García, Nilton Montoya, L. Baker Perry, Jeremy Ely   +11 more
wiley   +1 more source

Effect of the Orientation Schemes of the Energy Collection Element on the Optical Performance of a Parabolic Trough Concentrating Collector

Energies, 2018
While the circular shape is currently the proven optimum design of the energy collection element (ECE) of a parabolic trough collector, that is yet to be confirmed for parabolic trough concentrating collectors (PTCCs) like trough concentrating ...
Majedul Islam, Prasad Yarlagadda, Azharul Karim   +2 more
doaj   +1 more source

Welfare assessment of turkeys (Meleagris gallopavo gallopavo) on farm

EFSA Journal, Volume 24, Issue 2, February 2026.
Abstract This Scientific Opinion assesses the welfare of turkeys of all ages (Meleagris gallopavo gallopavo) on farm in relation to the type and condition of the litter, type and availability of enrichment (including covered veranda and outdoor range), space allowance, concentrations of ammonia and carbon dioxide, effective environmental temperature ...
EFSA Panel Animal Health and Animal Welfare (AHAW), Søren Saxmose Nielsen, Julio Alvarez, Anette Boklund, Sabine Dippel, Fernanda Dorea, Jordi Figuerola, Mette S. Herskin, Virginie Michel, Miguel Angel Miranda Chueca, Eleonora Nannoni, Romolo Nonno, | Karl Stahl, Jutta Berk, Joanna Marchewka, Nienke van Staaveren, Oana Maria Balmos, Chiara Fabris, Olaf Mosbach‐Schulz, Yves Van der Stede, Marika Vitali, Cristina Rojo Gimeno, Antonio Velarde, Anja Brinch Riber   +23 more
wiley   +1 more source

Advanced Drone-Based Alignment Measurements for Parabolic Trough Collectors

SolarPACES Conference Proceedings
A novel drone-based measurement method for the automatic quality check of the field assembly of parabolic trough collectors has been developed. The module as well as receiver alignment of entire parabolic trough loops can be measured using commercially ...
Andreas Kämpgen, David Helten, Klaus Pottler, Marc Röger   +3 more
doaj   +1 more source

A review of parabolic solar cookers with thermal energy storage

Heliyon, 2021
Biomass and fossil fuels are mostly used in rural areas of developing countries for cooking. These energy resources have negative impacts on the environment and human health mainly due to deforestation and greenhouse gas emissions.
Katlego Lentswe, Ashmore Mawire, Prince Owusu, Adedamola Shobo   +3 more
doaj   +1 more source

Distribution Pattern, Ecological Determinants and Conservation Gaps of Model‐Predicted Relative Probability of Occurrence Zones for the Tufted Deer (Elaphodus cephalophus) in China

Ecology and Evolution, Volume 16, Issue 1, January 2026.
This study analyzed the habitat suitability of the tufted deer, a rare and endemic ungulate in China, using the MaxEnt model and found that suitable habitats are mainly concentrated in Sichuan, Guizhou, and Yunnan provinces. However, the majority of these areas are not covered by existing protected areas, highlighting the urgent need to expand ...
Yuangang Yang, Peng Luo, Yu Zhao, Hua Li, Yufang Yang, Mengyao Li, Tongzuo Zhang, Feng Jiang, Zhangqiang You   +8 more
wiley   +1 more source

Direct Steam Generation in Parabolic Trough Collectors

Energy Procedia, 2014
Existing commercial parabolic trough power plants use thermal oil as a heat transfer fluid, with working temperatures in the region of 400ºC. In order to achieve more efficient generating systems, a second generation of parabolic troughs that operate at temperatures higher than 400ºC is being developed.
Alguacil, M., Prieto, C., Rodriguez, A., Lohr, J.   +3 more
openaire   +2 more sources

The impact of Arctic sea‐ice loss on winter weather in the British Isles

Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 774, January 2026 Part A.
Arctic sea‐ice loss shifts the North Atlantic jet and storm track equatorward, and results in a more negative North Atlantic Oscillation and more positive East Atlantic and Scandinavian patterns. Strong extratropical cyclones weaken and become less frequent for the British Isles, but there is model disagreement for precipitation, surface winds, and ...
Stephanie Hay, Ed Blockley, Jennifer L. Catto, Helene Hewitt, Y. T. Eunice Lo, James A. Screen, Doug Smith, Hao Yu   +7 more
wiley   +1 more source