Results 31 to 40 of about 597,017 (335)

Power-effective integral thermoelectric solar radiation converter

Вестник Дагестанского государственного технического университета: Технические науки, 2020
Aim. This article is devoted to the conversion of solar radiation into electricity using the joint effect of several methods, which complement each other by transforming the disadvantages of one method into the advantages of another method. Methods. Heat
S. M. Gadzhieva, P. A. Kurbanova, U. A. Magomedova   +2 more
doaj   +1 more source

Development of Teacher Guidebook for Photoelectric Effects Instructional Using Predict-Observe-Explain Strategy with PhET Interactive Simulation

JPPPF: Jurnal Penelitian & Pengembangan Pendidikan Fisika, 2019
This study developed a teacher book guide for photoelectric effects instructional using the Predict Observe Explain strategy with PhET interactive simulation.
Siswoyo Siswoyo
doaj   +1 more source

Investigation of the Profiles of High School Students’ Mental Models of the Concept of Photoelectric Effects

Scientiae Educatia: Jurnal Pendidikan Sains, 2020
A mental model was students’ internal representation when they learned a concept. The conceptual model is a description of natural phenomena following the views of scientists.
Yeni Rima Liana
doaj   +1 more source

Construção e caracterização de uma célula fotoelétrica para fins didáticos

Revista Brasileira de Ensino de Física
Este artigo apresenta o desenvolvimento e a caracterização de uma célula de efeito fotoelétrico e um sistema de excitação e de medição adequados para uso didático em aulas de Física.
João Bernardes da Rocha Filho, Marcos Alfredo Salami, Vicente Hillebrand   +2 more
doaj   +1 more source

Photoelectric Effect at Ultrahigh Intensities [PDF]

Physical Review Letters, 2007
In the spectral range of the extreme ultraviolet at a wavelength of 13.3 nm, we have studied the photoionization of xenon at ultrahigh intensities. For our ion mass-to-charge spectroscopy experiments, irradiance levels from 10(12) to 10(16) W cm(-2) were achieved at the new free-electron laser in Hamburg FLASH by strong beam focusing with the aid of a ...
Sorokin, A. A., Bobashev, S. V., Feigl, T., Tiedtke, K., Wabnitz, H., Richter, M.   +5 more
openaire   +4 more sources

Suppression of star formation in dwarf galaxies by grain photoelectric feedback [PDF]

, 2016
Photoelectric heating has long been recognized as the primary source of heating for the neutral interstellar medium. Simulations of spiral galaxies found some indication that photoelectric heating could suppress star formation. However, simulations that include photoelectric heating have typically found that it has little effect on the rate of star ...
arxiv   +1 more source

Time interval and lattice vibration in Raman effect, photoelectric effect and plane mirror reflection [PDF]

Modern Physics Letters B, Vol. 26, No. 18, pp. 1250115, (2012), 2012
Time interval between the incident and scattered photon in Raman effect and absorption of photon and emission of electron in photoelectric effect has not been determined till now. This is because there is no such high level instrument discovered till now to detect time interval to such a small level. But this can be calculated theoretically by applying
arxiv   +1 more source

Impact of the photoelectric threshold sensitivity on the work function determination—Revealing ultra-low work functions of caesiated surfaces

AIP Advances, 2022
The exploitation of the photoelectric effect is a prominent method for the in situ measurement of the absolute work function of a surface. In the case of metallic surfaces, the Fowler theory is routinely applied for fitting or extrapolating the measured ...
A. Heiler, R. Friedl, U. Fantz
doaj   +1 more source

Density functional theory and non-relativistic photoelectric effects in the few-electron atomic systems [PDF]

arXiv, 2022
Closed analytical formulas are derived for the differential and total cross sections of the non-relativistic photoelectric effect in the three main classes of few-electron atomic systems: (1) neutral atoms and positively charged atomic ions which contain more than one bound electron, (2) negatively charged atomic ions, and (3) one-electron atoms and ...
arxiv  

Effect on Dark Matter Exclusion Limits from New Silicon Photoelectric Absorption Measurements [PDF]

Phys. Rev. D 104, 063002 (2021), 2020
Recent breakthroughs in cryogenic silicon detector technology allow for the observation of single electron-hole pairs released via particle interactions within the target material. This implies sensitivity to energy depositions as low as the smallest band gap, which is $\sim1.2$ eV for silicon, and therefore sensitivity to eV/$c^2$-scale bosonic dark ...
arxiv   +1 more source