Results 91 to 100 of about 60,862 (368)

A numerical study of the double-glazed solar air heater (DG-SAH) performance using optimized gas-filled interspaces

Case Studies in Thermal Engineering, 2022
The reduction of energy losses and destroyed exergy requires the optimization of the double-glazing space. The poor thermophysical characteristics of the air are a limiting factor in the attenuation of heat loss through the double-glazing of the solar ...
Fethi Bennour, Hocine Mzad
doaj  

DEVELOPMENT OF MORAL VALUES AND CONSTRUCTIVISM THROUGH THE BILINGUAL LEARNING MODEL WITH A BCCT APPROACH (BEYOND CENTER AND CIRCLE TIME) IN EARLYCHILDHOOD EDUCATION IN SEMARANG 1 [PDF]

, 2015
This research aims to develop moral values and constructivism through a bilingual learning model with a BCCT approach. The theory of an English learning model through a BCCT approach can be used byteachers of early childhood education not only to ...
Ambarin, Ririn, Suneki , Sri, Wardoyo , Subur Laksmono   +2 more
core  

Direct observation of atomic diffusion in warm rubidium ensembles

, 2013
We present a robust method for measuring the diffusion coefficients of warm atoms in buffer gases. Using optical pumping, we manipulate the atomic spin in a thin cylinder inside the cell.
Parniak, Michal, Wasilewski, Wojciech
core   +1 more source

Inhomogeneous high harmonic generation in krypton clusters. [PDF]

Physical Review Letters, 2013
High order harmonic generation from clusters is a controversial topic: conflicting theories exist, with different explanations for similar experimental observations.
H. Ruf, Charles Handschin, Raluca Cireasa, Nicolas Thiré, A. Ferré, S. Petit, Dominique Descamps, E. Mevel, Eric Constant, V. Blanchet, B. Fabre, Y. Mairesse   +11 more
semanticscholar   +1 more source

Semiconducting Pt Structures Stabilized on 2D MoS2 Crystals Enable Ultrafast Hydrogen Evolution

Advanced Materials, EarlyView.
The interaction of small Pt particles with 2D MoS2 crystals can stabilize bilayer Pt structures, with a semiconducting electronic structure. The semiconducting electronic structure of Pt bilayers constitutes the so far unexplored transition domain between the bulk‐like, metallic band structure of compact nanoparticles and the discrete atomic orbitals ...
Tamás Ollár, Péter Vancsó, Péter Kun, Antal A. Koós, Gergely Dobrik, Ekaterina V. Sukhanova, Zakhar I. Popov, Miklós Németh, Krisztina Frey, Béla Pécz, Péter Nemes‐Incze, Chanyong Hwang, József Sándor Pap, Levente Tapasztó   +13 more
wiley   +1 more source

Determination of the separation efficiencies of a single-stage cryogenic distillation setup to remove krypton out of xenon by using a (83m)Kr tracer method.

Review of Scientific Instruments, 2015
The separation of krypton and xenon is of particular importance for the field of direct dark matter search with liquid xenon detectors. The intrinsic contamination of the xenon with radioactive (85)Kr makes a significant background for these kinds of low
S. Rosendahl, E. Brown, I. Cristescu, A. Fieguth, C. Huhmann, O. Lebeda, M. Murra, C. Weinheimer   +7 more
semanticscholar   +1 more source

Mechanistic Insights Into Proton and Oxygen Transport Through Ultrathin Amorphous Al2O3 and Al2O3‐SiO2 Electrocatalyst Overlayers

Advanced Materials Interfaces, EarlyView.
Ultrathin amorphous alumina electrocatalyst overlayers block oxygen reduction while cathodic‐driven structural relaxation accelerates proton transport over time. By contrast, ultrathin aluminosilicate coatings allow proton permeation but cannot suppress oxygen.
Dalia Leon‐Chaparro, Minh Duc Nguyen, Christoph Baeumer, Guido Mul, Georgios Katsoukis   +4 more
wiley   +1 more source

Proposals for Next-Generation Eco-Friendly Non-Flammable Refrigerants for a −100 °C Semiconductor Etching Chiller Based on 4E (Energy, Exergy, Environmental, and Exergoeconomic) Analysis

Energies
Recent advancements in cryogenic etching, characterized by high aspect ratios and etching rates, address the growing demand for enhanced performance and reduced power consumption in electronics. To precisely maintain the temperature under high loads, the
Hye-In Jung, Chang-Hyo Son, Joon-Hyuk Lee   +2 more
doaj   +1 more source

Correlative Super‐Resolution Imaging of Cellular Nanopores Facilitated by Transparent Polymer Waveguide Chips

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Correlative super‐resolution optical imaging of the ultrastructure of rat liver sinusoidal endothelial cells (LSECs) across a large field of view (FOV) with 3D structured illumination microscopy (3D‐SIM) and single‐molecule localization microscopy (SMLM), facilitated by a transparent polymer photonic waveguide chip, is presented.
Surjendu Bikash Dutta, Jasmin Celine Schürstedt‐Seher, Anders Kokkvoll Engdahl, Wolfgang Hübner, Stefan Belle, Karolina Szafranska, Peter McCourt, Ralf Hellmann, Mark Schüttpelz, Thomas Huser   +9 more
wiley   +1 more source

SPEECH LEVELS OF MADURESE LANGUAGE: A SOCIO-PRAGMATIC STUDY OF BANGKALAN DIALECT [PDF]

, 2017
Each ethic group in Indonesia has its own vernacular language to communicate each other politely and effectively. Among abundant vernacular languages spoken by various ethnic groups in Indonesia, Madurese language spoken by Madurese inhabitants is ...
Hawas , Muhammad, Kinasih, Agni Kusti
core