Results 1 to 10 of about 1,211,380 (305)

Linear Optical Pulse Compression Based on Temporal Zone Plates

open access: yesOptics Express, 2013
We propose and demonstrate time-domain equivalents of spatial zone plates, namely temporal zone plates, as alternatives to conventional time lenses. Both temporal intensity zone plates, based on intensity-only temporal modulation, and temporal phase zone plates, based on phase-only temporal modulation, are introduced and studied.
Shuqin Lou, José Azaña
exaly   +3 more sources

FRACTALS IN GEOLOGY, GEOTECTONIC AND GEODYNAMIC ASPECTS

open access: yesНаука. Инновации. Технологии, 2022
Introduction: the paper deals with the general concepts of fractals, their geodynamic and geotectonic aspects. An example is given of the most obvious fractals - structures of the central type, in particular, stretching structures.
V. M. Kharchenko, D. V. Lapta
doaj   +1 more source

Timing of syn-orogenic, high-grade transtensional shear zone formation in the West Uusimaa Complex, Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 2022
We present zircon and titanite U-Pb ages from granulite-facies transtensional shear zones and a greenschist facies strike-slip shear zone in the Karkkila-Vihti area, West Uusimaa. The zircon rim and titanite ages of c.
Taija Torvela, Matti Kurhila
doaj   +1 more source

Segregated Targeting of Hydrogen Allocation Network using Pinch Analysis

open access: yesChemical Engineering Transactions, 2022
Hydrogen, as a resource is widely used in refineries in hydrocracking and hydrotreating processes. As hydrogen demand in the refineries is increasing, hydrogen management strategies are of great interest to the refineries.
Gaurav Shukla, Nitin Dutt Chaturvedi
doaj   +1 more source

Using the cobweb classification system as a digital location system for the neurologic compression in cervical degenerative disease

open access: yesJOR Spine, 2021
Objective To provide the cobweb classification system (CCS) for the precise digital location and description of the neurological compression in cervical degenerative disease (CDD), and the reliability and the clinical subgroup analysis of the system were
Yang Xiong   +8 more
doaj   +1 more source

On the mechanism of interaction between strong earthquakes and volcanism in subduction zones

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2022
The relationship between strong earthquakes and powerful volcanism in subduction zones are discussed. It is shown that abnormally strong earthquakes or a group of strong earthquakes and powerful volcanic events or volcanic activation of large areas can ...
Rebetsky Yu.L., Stefanov Yu.P.
doaj   +1 more source

Experimental study on partial compression parallel to grain of solid timber

open access: yesJournal of Wood Science, 2021
This paper describes results and analysis of experimental testing of entire and partial compression strength and stiffness parallel to the grain of solid timber (Japanese cedar).
Marina Totsuka   +3 more
doaj   +1 more source

Computational simulation of the ore-forming processes associated with the Sanshandao-Haiyu gold belt, Jiaodong Peninsula, eastern China: implications for the duration of ore formation

open access: yesFrontiers in Earth Science, 2023
The Sanshandao-Haiyu gold belt, Jiaodong Peninsula, Eastern China accounts for more than 1,400 t gold resources, which is always recognized as a coupled result of structural deformation, pore-fluid flow, and hydrothermal alteration-mineralization ...
Wenfa Shan   +13 more
doaj   +1 more source

Variability in density of spruce (Picea abies [L.] Karst.) wood with the presence of reaction wood

open access: yesJournal of Forest Science, 2007
The study was aimed to assess the integral value that determines wood properties - wood density at a moisture content of 0% and 12%. The wood density was researched in a sample tree with the presence of reaction compression wood.
V. Gryc, P. Horáček
doaj   +1 more source

Deformation sequences and ore-controlling structures of the Chanziping–Daping gold mining area in Hunan Province, China

open access: yesDizhi lixue xuebao, 2023
The Chanziping–Daping gold deposit area is located in the southwest section of the Xuefeng arc-shaped structural belt, with mainly NWW-NNW-trending and secondary NNE-trending Au veins.
BAI Daoyuan   +4 more
doaj   +1 more source

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