Results 21 to 30 of about 2,773,929 (412)

Distribution Characteristics and Sources Identification of Selenium-rich Soils in the Ecological Conservation Area of the Daqinghe River Watershed, Beijing

open access: yesYankuang ceshi, 2019
BACKGROUND Beijing is a typical geographical distribution area of selenium deficiency. However, some research results in recent years indicate that the soils in some areas reaches the level of selenium enrichment.
FENG Hui   +3 more
doaj   +1 more source

Rock around Spain: historia, industria, escenas y medios de comunicación

open access: yesInMediaciones de la Comunicación, 2017
El libro Rock around Spain (2013), editado por la Universitat de Lleida, apuesta a una aproximación transdisciplinar rica en matices conceptuales y escriturales, y cuenta con cuatro secciones “Historia, Industria, Escenas y Medios de comunicación”.
Álvaro Buela
doaj   +1 more source

Drogas, festivais e rock nas páginas dos jornais brasileiros e portugueses – 1969/1975

open access: yesAlbuquerque, 2020
Este artigo tem como objetivo tratar e refletir comparativa e historicamente a relação entre drogas, festivais e rock a partir de matérias publicadas na imprensa brasileira e portuguesa no período de 1969 a 1975.
Paulo Gustavo Da Encarnação
doaj   +1 more source

Digital Rock Typing DRT Algorithm Formulation with Optimal Supervised Semantic Segmentation [PDF]

open access: yesarXiv, 2021
Each grid block in a 3D geological model requires a rock type that represents all physical and chemical properties of that block. The properties that classify rock types are lithology, permeability, and capillary pressure. Scientists and engineers determined these properties using conventional laboratory measurements, which embedded destructive methods
arxiv  

Q fever outbreak in the terraced vineyards of Lavaux, Switzerland

open access: yesNew Microbes and New Infections, EarlyView., 2014
Abstract Coxiella burnetii infection (Q fever) is a widespread zoonosis with low endemicity in Switzerland, therefore no mandatory public report was required. A cluster of initially ten human cases of acute Q fever infections characterized by prolonged fever, asthenia and mild hepatitis occurred in 2012 in the terraced vineyard of Lavaux ...
C. Bellini   +9 more
wiley   +1 more source

Dynamic evolution and numerical analysis of rock deformation under impact failure based on corner correlation method

open access: yesFrontiers in Earth Science, 2023
To fulfill the requirement for deformation measurement within the failure area during rock failure, a newly developed digital image algorithm, known as the corner correlation method, was implemented.
Xingui Zhou   +6 more
doaj   +1 more source

A pedra de uma tonelada: como o rock ‘n’ roll ficou pesado

open access: yesOrfeu, 2023
O presente artigo apresenta pesquisa bibliográfica, dentro do campo de estudo de gêneros musicais, acerca do desenvolvimento do que convencionou-se chamar de som “pesado” (heaviness) ao longo de aproximadamente sete décadas da história do rock.
Leonardo Porto Passos   +1 more
doaj   +1 more source

The Rocks of Guernsey [PDF]

open access: yesQuarterly Journal of the Geological Society of London, 1884
A t the opening of this paper I desire to acknowledge my great obligations to Professor Bonney for his assistance throughout my investigations. I must also thank J. R. Cousins, Esq., of St. John’s College, Cambridge, for valuable help.
openaire   +3 more sources

Effect of increasing mining rate on longwall coal mining – Western donbass case study

open access: yesStudia Geotechnica et Mechanica, 2016
This paper presents the problems associated with the rapid change of the rock stress-strain state in terms of increasing the rate of coal mining.
Sdvyzhkova Olena, Patyńska Renata
doaj   +1 more source

Overview of the thermal properties of rocks and sediments in Slovenia

open access: yesGeologija, 2023
The use of geothermal energy, which comes from both deep geothermal systems and the shallow underground, has been developing rapidly in the last few decades.
Dušan Rajver, Simona Adrinek
doaj   +1 more source

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