Results 21 to 30 of about 295,254 (181)

Experimental Investigation of Illumination Performance of Hollow Light Pipe for Energy Consumption Reduction in Buildings

Energies, 2021
This work investigates the light illumination intensity, light transmission performance, light distribution on the floor, and daylight factor of vertical light hollow tubes at various incident elevation angles of a light source. The light tubes were made
Jiraphorn Mahawan, Atthakorn Thongtha
doaj   +1 more source

Side-View Atmospheres under Outdoor Midday High Luminance

Buildings, 2016
This work deals with daylighting for indoor quality atmospheres, considering building skins and side-views. We also tested the vision perception provided by highly glazed façades.
Urtza Uriarte, Rufino J. Hernández, Joan L. Zamora, Antonio Isalgue   +3 more
doaj   +1 more source

Comparison and development of daylight simulation software – A case study [PDF]

E3S Web of Conferences, 2020
Working with daylight simulations on a regular basis, the authors discovered that it is increasingly challenging to achieve daylight criteria in new building projects. In addition to complex building designs, a new European Standard was published in 2018
Solvang Helene, Kristiansen Tobias, Bottheim Ruth Marie, Kampel Wolfgang   +3 more
doaj   +1 more source

Titan brighter at twilight than in daylight [PDF]

, 2017
Investigating the overall brightness of planets (and moons) provides insight into their envelopes and energy budgets [1, 2, 3, 4]. Titan phase curves (a representation of overall brightness vs.
Lavvas, Panayotis, Muñoz, Antonio García, West, Robert A.   +2 more
core   +1 more source

Injecting Observers into Computational Complexity

Philosophies
We characterize computer science as an interplay between two modes of reasoning: the Aristotelian (procedural) method and the Platonic (declarative) approach.
Edgar Graham Daylight
doaj   +1 more source

Expressing the Behavior of Three Very Different Concurrent Systems by Using Natural Extensions of Separation Logic

, 2009
Separation Logic is a non-classical logic used to verify pointer-intensive code. In this paper, however, we show that Separation Logic, along with its natural extensions, can also be used as a specification language for concurrent-system design. To do so,
Daylight, Edgar G., Sergio, Davide, Shukla, Sandeep K.   +2 more
core   +2 more sources

Refining Mark Burgin’s Case against the Church–Turing Thesis

Philosophies
The outputs of a Turing machine are not revealed for inputs on which the machine fails to halt. Why is an observer not allowed to see the generated output symbols as the machine operates?
Edgar Graham Daylight
doaj   +1 more source

λ ∼ 4.7 μm Quantum Cascade Distributed-Feedback Lasers for Free-Space Communications

Photonics
Quantum cascade lasers (QCLs) have emerged as promising candidate sources for free-space communications. High optical power densities, short photon lifetimes, and low internal capacitance are important factors influencing the transmission bandwidth.
Morgan Turville-Heitz, Robert Marsland, Jae Ha Ryu, Steven A. Jacobs, Jeremy D. Kirch, Tom Earles, Steven Ruder, Kevin Oresick, Benjamin Knipfer, Dan Botez, Luke J. Mawst   +10 more
doaj   +1 more source

Daylight Photodynamic Therapy: An Update

Molecules, 2020
Daylight photodynamic therapy (dPDT) uses sunlight as a light source to treat superficial skin cancer. Using sunlight as a therapeutic device has been present for centuries, forming the basis of photodynamic therapy in the 20th century.
Chaw-Ning Lee, Rosie Hsu, Hsuan Chen, Tak-Wah Wong   +3 more
doaj   +1 more source

Evaluation of lighting conditions in portable classrooms and analysis for alternative daylighting systems [PDF]

, 2017
Lighting conditions in multiple classrooms in central Texas were assessed, and the feasibility of improving portable classroom daylighting via alternative daylighting systems was also evaluated.
Zhang, Yan, M.S. in Engineering
core   +1 more source