Results 41 to 50 of about 160,458 (330)

ASPECTS OF PHYSICAL PHENOMENA IN MINING FOR THE WESTERN DONBASS [PDF]

open access: yes, 2018
On the base of statistic definition of the maps of underground mining in Western Donbass and using the special software it was acquainted with physical and geological phenomena for coal ...
POPOV, Dmytrо
core  

Unveiling Aggregation‐Induced Singlet Fission in Push–Pull Diketopyrrolopyrrole Water Dispersed Nanoaggregates and Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Aggregates of diketopyrrolopyrrole dipolar and quadrupolar systems exhibit panchromatic absorption spectra extending in the entire visible range. Upon aggregation in water and in the solid state, their fluorescence is almost completely quenched and their singlet excited state lifetime is significantly shortened.
Roberto Cantoni   +10 more
wiley   +1 more source

The unique chemistry of Eastern Mediterranean water masses selects for distinct microbial communities by depth. [PDF]

open access: yesPLoS ONE, 2015
The waters of the Eastern Mediterranean are characterized by unique physical and chemical properties within separate water masses occupying different depths.
Stephen M Techtmann   +6 more
doaj   +1 more source

Rock mass characterization coupled with seismic noise measurements to analyze the unstable cliff slope of the Selmun Promontory (Malta) [PDF]

open access: yes, 2017
In the Mediterranean area, cliff slopes represent widespread high-risk landforms as they are highly frequented touristic places often interested by landslide processes.
D’Amico, Sebastiano   +3 more
core   +1 more source

Multiple Twinning in Nacre and Aragonite

open access: yesAdvanced Functional Materials, EarlyView.
Electron backscatter diffraction map of a cluster of geologic aragonite, exhibiting single, double, and triple twins. The whole cluster is approximately 2 cm wide. Colors indicate crystal orientations, so that pixels where the a‐, b‐, and c‐axis is perpendicular to the image plane are green, red, and blue, respectively.
Connor A. Schmidt   +7 more
wiley   +1 more source

Diversity as a general basis of tourism – system approach [PDF]

open access: yes, 2015
The general basis for tourism consists in the diversity of natural and man-made environment. The diversity can be considered as a natural characteristic of natural and anthropogenic systems produced by them as a condition of its continuance and ...
Schejbal, Ctirad
core  

Tectonic interpretation of the connectivity of a multiscale fracture system in limestone [PDF]

open access: yes, 2016
This paper studies the statistics and tectonism of a multiscale natural fracture system in limestone. The fracture network exhibits a self‐similar characteristic with a correlation between its power law length exponent a and fractal dimension D, i.e., a ≈
Lei, Q, Wang, X
core   +1 more source

Colloidal Crack Sintering Lithography for Light‐Induced Patterning of Particle Assemblies

open access: yesAdvanced Functional Materials, EarlyView.
Colloidal crack sintering lithography (CCSL) is a microfabrication technique that uses light‐induced photothermal heating to trigger sintering and controlled cracking in polymer colloidal assemblies. Local structural changes generate microchannels and patterns, enabling direct writing of diverse topographic motifs.
Marius Schoettle   +2 more
wiley   +1 more source

The impact of complex engineering and geological conditions on the durability of the polymer pipeline

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія, 2022
Formulation of the problem. During the construction of the oil collector, in order to ensure uninterrupted transportation of products, it was planned to lay an industrial oil collector made of fiberglass pipes. In some areas, repeated depressurization of
Vadym Aleksandrovych   +2 more
doaj   +1 more source

Risk Estimation and Expert Judgment: The Case of Yucca Mountain [PDF]

open access: yes, 1992
Professor Shrader-Frechette discusses factors responsible for acute disagreement between the federal government and Nevada citizens over potential Risks at Yucca Mountain and focuses on the use of expert judgment, concluding that some of them appear to ...
Shrader-Frechette, Kristin
core   +2 more sources

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