Results 51 to 60 of about 790,255 (328)

Ionizing radiation in electronics from the Compton scattering of quasi-stationary particles generated by characteristic and Bremsstrahlung x rays

open access: yesAIP Advances, 2020
Characteristic x rays generated by a collision between a tungsten target and relativistic electron beams generated from a compact electrostatic accelerator based on a Marx generator and a Blumlein pulse-forming line can induce transient ionizing ...
Sun-Hong Min   +17 more
doaj   +1 more source

Fast Thermo-reflectance Bolometry [PDF]

open access: yes, 2003
We present a new approach to bolometry based on the measurement of the optical reflectivity change of a thin metal layer deposited on a transparent substrate.
Boller, K.J.   +3 more
core   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

open access: yesAdvanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan   +9 more
wiley   +1 more source

A novel vacuum ultra violet lamp for metastable rare gas experiments [PDF]

open access: yes, 2002
We report on a new design of a vacuum ultra violet (VUV) lamp for direct optical excitation of high laying atomic states e.g. for excitation of metastable rare gas atoms. The lamp can be directly mounted to ultra high vacuum vessels (p
Daerr, Heiner   +7 more
core   +2 more sources

New records of Heterocera (Insecta, Lepidoptera) from the Republic of Khakassia and South of Krasnoyarsk region (South Siberia, Russia)

open access: yesActa Biologica Sibirica, 2019
Here we presented the new data and new records of Lepidoptera (Crambidae, Cossidae, Lasiocampidae, Drepanidae, Geometridae, Notodontidae, Noctuidae s.l., Arctiidae) from the Khakassia Republic and the South of Krasnoyarsk region.
R. E. Maksimov   +2 more
doaj   +1 more source

Apparatus to control and visualize the impact of a high-energy laser pulse on a liquid target [PDF]

open access: yes, 2017
We present an experimental apparatus to control and visualize the response of a liquid target to a laser-induced vaporization. We use a millimeter-sized drop as target and present two liquid-dye solutions that allow a variation of the absorption ...
Alexander L. Klein   +8 more
core   +3 more sources

Understanding the Chemical and Electronic Properties of Sub‐Monolayer TiO2 on High Surface Area Silica for Jet Fuel Synthesis Applications

open access: yesAdvanced Functional Materials, EarlyView.
Sub‐monolayer titania grafted onto mesoporous silica enables solvent‐free photocatalytic upgrading of furfural and cyclopentanone into jet fuel precursors. Advanced spectroscopic methods reveal tunable surface speciation, acidity, and bandgaps, enhancing catalytic efficiency.
Mark A. Isaacs   +12 more
wiley   +1 more source

Ultraviolet Resonance Lamp-Patent [PDF]

open access: yes, 1970
Development of ultraviolet resonance lamp with improved transmission of ...
Bass, A. M.
core   +1 more source

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu   +5 more
wiley   +1 more source

An Historical Survey on Light Technologies [PDF]

open access: yes, 2018
Following the celebration of the International Year of Light and Light-based Technologies in 2015, this paper presents a survey of the exploitation of light throughout our history. Human beings started using light far into the Stone Age, in order to meet
Guarnieri, Massimo
core   +1 more source

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