The multilayered structure of Žemaitija and Medininkai tills and the question of its origin in South Lithuania

Geologija ◽  
2014 ◽  
Vol 56 (3) ◽  
Author(s):  
Valentinas Baltrūnas ◽  
Bronislavas Karmaza ◽  
Violeta Pukelytė
Keyword(s):  
Multilayered Structure

scholarly journals Terms and conditions of high-mountain lake ice-cover chemistry (Carpathians, Poland)

2015 ◽  
Vol 61 (230) ◽  
pp. 1207-1212 ◽  
Author(s):  
Iwona Kurzyca ◽  
Adam Choiński ◽  
Joanna Pociask-Karteczka ◽  
Agnieszka Lawniczak ◽  
Marcin Frankowski
Keyword(s):  
Water Body ◽  
Ice Cover ◽  
Multilayered Structure ◽  
Mountain Lake ◽  
High Mountain ◽  
Lake Ice ◽  
High Mountain Lake ◽  
Spatial Diversification ◽  
The Tatra Mountains

AbstractWe discuss the results of an investigation of the chemical composition of the ice cover on the high-mountain lake Morskie Oko in the Tatra Mountains, Carpathians, Poland. In the years 2007–13, the ice cover was characterized by an average duration of 6 months, a thickness range of 0.40–1.14 m, and a multilayered structure with water or slush inclusion. In water from the melted ice cover, chloride (max. 69%) and sulphate (max. 51%) anions and ammonium (max. 66%) and calcium (max. 78%) cations predominated. Different concentrations of ions (F−, Cl−, NO3−, SO42−, Na+, K+, Mg2+, Ca2+, NH4+) in the upper, middle and bottom layers of ice were observed, along with long-term variability and spatial diversification within the ice layer over the lake. Snowpack lying on the ice and the water body under the ice were also investigated, and the influence on the ice cover of certain ions in elevated concentrations was observed (e.g. Cl− in the upper ice cover and the snowpack, and Ca2+ in the bottom ice cover and water body).

Fabrication of multilayered structure of silver nanorod arrays for plasmon memory

2018 ◽  
Vol 193 ◽  
pp. 47-53 ◽  
Author(s):  
Hisahiro Wadayama ◽  
Takao Okabe ◽  
Jun Taniguchi
Keyword(s):  
Multilayered Structure ◽  
Nanorod Arrays

Reduced graphene oxide functionalized stretchable and multicolor electrothermal chromatic fibers

2017 ◽  
Vol 5 (44) ◽  
pp. 11448-11453 ◽  
Author(s):  
Qiang Li ◽  
Kerui Li ◽  
Hongwei Fan ◽  
Chengyi Hou ◽  
Yaogang Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Multilayered Structure ◽  
Comprehensive Properties ◽  
Reduced Graphene

Stretchable and multicolor electrothermal chromatic fibers are prepared with a multilayered structure and achieve satisfactory comprehensive properties.

scholarly journals Laser contrast and other key parameters enhancing the laser conversion efficiency in ion acceleration regime

2018 ◽  
Vol 167 ◽  
pp. 02002 ◽  
Author(s):  
Lorenzo Torrisi
Keyword(s):  
Electric Field ◽  
Conversion Efficiency ◽  
Laser Light ◽  
Laser Intensity ◽  
Multilayered Structure ◽  
Maximum Energy ◽  
Ion Acceleration ◽  
Surface Geometry ◽  
Laser Parameters ◽  
Target Composition

Measurements of ion acceleration in plasma produced by fs lasers at intensity of the order of 1018 W/cm2 have been performed in different European laboratories. The forward emission in target-normal-sheath-acceleration (TNSA) regime indicated that the maximum energy is a function of the laser parameters, of the irradiation conditions and of the target properties.In particular the laser intensity and contrast play an important role to maximize the ion acceleration enhancing the conversion efficiency. Also the use of suitable prepulses, focal distances and polarized laser light has important roles. Finally the target composition, surface, geometry and multilayered structure, permit to enhance the electric field driving the forward ion acceleration.Experimental measurements will be reported and discussed.

Nondestructive Extraction of Parameters of Multilayered Media Using Terahertz Pulse Technique

Frequenz ◽  
2019 ◽  
Vol 73 (1-2) ◽  
pp. 63-70
Author(s):  
Surya Prakash Singh ◽  
Nilesh K. Tiwari ◽  
M. Jaleel Akhtar
Keyword(s):  
Refractive Index ◽  
Complex Refractive Index ◽  
Multilayered Structure ◽  
Terahertz Pulse ◽  
Destructive Testing ◽  
Multilayered Media ◽  
Pulse Technique ◽  
Non Invasive ◽  
Full Wave ◽  
Non Destructive

Abstract In this work, an efficient non-invasive terahertz pulse technique is proposed and investigated to determine the thickness and refractive index of each layer in an optically thick stratified media. A closed form formulations are derived for simultaneous extraction of the thickness and complex refractive index of each layer with the help of primary reflected signals from the multilayered structure. The proposed technique is numerically tested using a full wave electromagnetic simulator and is experimental verified in the millimeter wave frequency range by utilizing the power peaks corresponding to the primary reflected signals. The numerical and measured results of multilayered samples under test are in good agreement with the reference data. The proposed terahertz pulse technique can be used for non-destructive testing of the multilayered system existing in various industries.

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