Results 51 to 60 of about 115,703 (294)

Alternative approach to all-angle negative refraction in two-dimensional photonic crystals

, 2007
We show that with an appropriate surface modification, a slab of photonic crystal can be made to allow wave transmission within the band gap. Furthermore, negative refraction and all-angle-negative-refraction (AANR) can be achieved by this surface ...
A. Taflove, J. D. Joannopoulos, S. Sridhar, V. M. Shalaev, W. T. Lu, W. T. Lu, Y. J. Huang   +6 more
core   +1 more source

Cool Kitchen: Processing Starch and Eggshell Powder into Sustainable Coatings for Passive Daytime Cooling

Advanced Functional Materials, EarlyView.
A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song, Evelyn Kubacki, Alexander Berger, Markus Retsch   +3 more
wiley   +1 more source

Evaluation of Carbon Dioxide Emissions amongst Alternative Slab Systems during the Construction Phase in a Building Project

Applied Sciences, 2019
Global warming is now considered to be one of the greatest challenges worldwide. International environmental agreements have been developed in response to climate change since the 1970s.
Inkwan Paik, Seunguk Na
doaj   +1 more source

Comparative Study Of Conventional Slab, Flat Slab And Grid Slab Using ETABS

IOP Conference Series: Materials Science and Engineering, 2021
Abstract In today’s construction, the traditional slab is mostly supported by a beam, with a small slab thickness and a large beam depth, and the weight is carried from beam to column. The flat slab allows architects to place partition walls wherever they are needed. It is widely used because it reduces weight, speeds up building, and is
Abhijit K Sawwalakhe, Prabodh D Pachpor
openaire   +1 more source

Light Collimation and Focussing by a Thin Flat Metallic Slab [PDF]

, 2005
We present experimental and theoretical work showing that a flat metallic slab can collimate and focus light impinging on the slab from a punctual source. The effect is optimised when the radiation is around the bulk, not at the surface, plasma frequency.
A. Pons, Garcia, Garcia, Garcia, Garcia, Garcia-Pablos, John, Johnson, Kafesaki, Ming Bai, N. García, Notomi, P. Corredera, Pendry, S. Ioanid, Veselago, Yablonovitch   +16 more
core   +2 more sources

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

Advanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado, Enqi Bu, Yaning Han, Carlos López‐Cartes, Mónica Calatayud, Huiyan Pan, Xiaowei Chen   +6 more
wiley   +1 more source

Analysis of Post-Tensioned Flat Slabs, Conventional Slabs, and Flat Slabs using Etabs Software

International Journal for Research in Applied Science and Engineering Technology
Abstract: The modern-day submit-tensioning method is especially well-known because of its practicality; so, we will design the maximum safe and economical construction using this method. Every time we are planning the application of this technique, we must include more protective measures for slabs' shear and deflection criteria.
Manoj Kumar Ahirwar, Murlidhar Chourasia
openaire   +1 more source

Numerical modelling of symmetric and asymmetric punching and post-punching shear responses of RC flat slabs [PDF]

, 1997
The design and construction of civil engineering structures take into great consideration the sensitivity of such structures in the event of local failures.
Ulaeto, N, Sagaseta, Juan
core  

Deducing radiation pressure on a submerged mirror from the Doppler shift

, 2012
Radiation pressure on a flat mirror submerged in a transparent liquid, depends not only on the refractive index n of the liquid, but also on the phase angle psi_0 of the Fresnel reflection coefficient of the mirror, which could be anywhere between 0 ...
J. D. Jackson, L. Landau, Masud Mansuripur, P. W. Milonni, R. V. Jones   +4 more
core   +1 more source

Concrete flat slab supported by columns [PDF]

, 2016
Cílem této bakalářské práce je navržení nosné železobetonové lokálně podepřené desky pro stropní konstrukce v druhém nadzemním podlaží nemocnice. K modelování vnitřních sil v konstrukci byl použit software RFEM, výsledky byly ověřeny metodou náhradních ...
Macháček, Jan
core   +2 more sources