Results 11 to 20 of about 11,118 (217)

Scale-Up Considerations of the Sundial Rotating Fresnel Solar Collector

open access: yesSolarPACES Conference Proceedings
In the frame of the ASTEP project two prototypes of the Sundial collector, together with a Phase Change Material Thermal Energy Storage, will be tested integrated with the industrial processes of two sites.
Mercedes Ibarra   +4 more
doaj   +2 more sources

From star field affiliation to sundial theory: spatial expression in Qing dynasty Taiwan gazetteers

open access: yesHumanities & Social Sciences Communications
Star field affiliation is an important part of ancient Chinese gazetteers. The gazetteers of Taiwan in the Qing Dynasty presented many ‘different opinions’ about the star field affiliation of Taiwan.
Yao Liu, Wenwen Feng
doaj   +2 more sources

Finding SEIS North on Mars: Comparisons Between SEIS Sundial, Inertial and Imaging Measurements and Consequences for Seismic Analysis

open access: yesEarth and Space Science, 2021
In this paper, we present the results obtained in the determination of the true north direction on Mars by using a gnomon on the InSight mission and compare the measurements with either the North determination from the Inertial Measurement Unit and ...
D. Savoie   +12 more
doaj   +2 more sources

Integrated Geomatic Techniques for Georeferencing and Reconstructing the Position of Underground Archaeological Sites: The Case Study of the Augustus Sundial (Rome)

open access: yesRemote Sensing, 2020
A large part of the archaeological remains still to be discovered and excavated are not in remote and depopulated areas of the earth but are often beneath urban centres that have buried them with centuries of debris and later constructions. Excavating in
Valerio Baiocchi   +9 more
doaj   +2 more sources

Assessing the status of sundial lupine (<i>Lupinus perennis</i> L.) genetic diversity and population structure throughout its distribution. [PDF]

open access: yesAoB Plants
Habitat loss and fragmentation directly influence plant genetic diversity and how it is spatially structured. Species associated with shrinking habitats generally experience population declines and genetic erosion, potentially increasing extinction risk.
Petitta IR, Sabo AE, López-Uribe MM.
europepmc   +2 more sources

SUNDIAL: 3D Satellite Understanding through Direct, Ambient, and Complex Lighting Decomposition [PDF]

open access: yes2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2023
Estimating 3D geometry of terrain from satellite imagery is essential for environmental science, urban planning, agriculture, and disaster response.
Nikhil Behari   +4 more
semanticscholar   +1 more source

Time Tools. [PDF]

open access: yesTop Cogn Sci
Abstract Many core human activities require an understanding of time. To coordinate rituals, plan harvests and hunts, recall histories, keep appointments, and follow recipes, we need to grapple with invisible temporal structures like durations, sequences, and cycles. No other species seems to do this.
Cooperrider K.
europepmc   +2 more sources

Analemmatic and horizontal sundials of the Bronze Age (Northern Black Sea Coast) [PDF]

open access: yesArchaeoastronomy and Ancient Technologies, 2013
The paper presents the results of a study of unique slab with images of Srubna burial of tumuli group Popov Yar-2 (Ukraine) and slab of Srubna burial of tumulus field Tavriya-1 (Russia). A distinctive feature of the images is the orderliness and symmetry
Vodolazhskaya, L.N.
doaj   +1 more source

Defocus Controller for a Rotatory Fresnel Collector

open access: yesSolarPACES Conference Proceedings, 2023
Solar heat for industrial processes (SHIP) is becoming one of the most attractive solutions for industry decarbonisation. Solar plants require a complex control system to manage the fluctuation of their source, solar radiation.
Magdalena Barnetche   +5 more
doaj   +1 more source

Family of the Sun-and-Stars Time-Determining Instruments (Ilseong-jeongsi-ui) Invented During the Joseon Dynasty [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2016
We analyze the design and specifications of the Sun-and-Stars Time-Determining group of instruments (Ilseong-jeongsi-ui, 日星定時儀) made during the Joseon dynasty.
Yong Sam Lee   +2 more
doaj   +1 more source

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