Results 21 to 30 of about 900,993 (312)

Archaeologists’ perceptions on public outreach and education

open access: yesAP, 2016
This paper presents the results of a survey of archaeologists’ perceptions of public outreach and education, also known as public archaeology. The results obtained indicate that archaeologists’ views on public archaeology are generally positive but with ...
Doug Rocks-Macqueen
doaj   +1 more source

Determination of total contents of fluid inclusions in quartz using modal analysis: Examples from Proterozoic rocks and ore deposits in Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1989
A modified linear measurement procedure following Rosiwal's method to determine the total volume contents of fluid inclusions in minerals is described. The contents were determined from quartz crystals and grains in 13 Proterozoic rock and ore specimens ...
K.A. Kinnunen
doaj   +1 more source

Widespread abiotic methane in chromitites [PDF]

open access: yes, 2018
Recurring discoveries of abiotic methane in gas seeps and springs in ophiolites and peridotite massifs worldwide raised the question of where, in which rocks, methane was generated.
Etiope, G.   +8 more
core   +1 more source

Landscape features of Kislovodsk medical park [PDF]

open access: yesСибирский лесной журнал, 2015
An attempt to reveal some of the unique features of the Kislovodsk medical park landscape and explain reasons for its beneficial effects on human health, which could serve as one of the arguments to justify giving the park the status of specially ...
А. P. Kazankin
doaj   +1 more source

Estimation of stresses in a massive granite using laser ultra-sonic testing and stress memory effect

open access: yesActa Polytechnica, 2023
This paper addresses in-situ stress-estimation methods based on the Kaiser effect. The physical and mechanical properties of granite, diorite, and granodiorite samples selected at different depth intervals of the core obtained from a wellbore were ...
Ondřej Kašpar   +5 more
doaj   +1 more source

Effects of elevated temperature on physical and mechanical properties of carbonate rocks in South-Southern Nigeria [PDF]

open access: yes, 2018
Purpose. Limestone and marble are carbonate rocks with several structural and engineering applications. The physical and mechanical properties of the rocks are fundamental as they determine their suitability for various use.
Idris, M.A.
core   +1 more source

Self-oscillations in rocks,results of laboratory experiments

open access: yesAnnals of Geophysics, 2004
The method of generation of self-oscillations in rocks is developed here. Self-oscillations arise as a result of direct and inverse mechanoelectric transformations without an external generator.
O. R. Kuzichkin   +3 more
doaj   +1 more source

Revealing structure-function relationships in functional flow networks via persistent homology

open access: yes, 2019
Complex networks encountered in biology are often characterized by significant structural diversity. Whether it be differences in the three-dimensional structure of allosteric proteins, or the variation among the micro-scale structures of organisms ...
Katifori, Eleni   +2 more
core   +1 more source

Lithopanspermia in Star Forming Clusters [PDF]

open access: yes, 2005
This paper considers the lithopanspermia hypothesis in star forming groups and clusters, where the chances of biological material spreading from one solar system to another is greatly enhanced (relative to the field) due to the close proximity of the ...
Adams, Fred C., Spergel, David N.
core   +2 more sources

Experiments on Rocks Under High Pressure Conditions in GTA 20-32 Triaxial Press / Experimenty Na Horninách Ve Vysokotlakém Triaxiálním Lisu GTA 20-32

open access: yesGeoScience Engineering, 2012
V příspěvku je popsána metodika měření na triaxiálním lisu GTA 20-32. Je porovnáno deformační chování dvou rozdílných typů hornin:
Poláček Josef, Kožušníková Alena
doaj   +1 more source

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