Results 41 to 50 of about 2,868 (182)

Correlation Between Cerchar Abrasivity Index with Rock Properties in Sandstone and Tuff Samples [PDF]

open access: yesMuhandisī-i manābi̒-i ma̒danī
The abrasivity of materials is of vital importance in selecting an affordable excavation method in the early stages of a tunneling project. The amount of specific energy and the Mode I and Mode II stress intensity factors in the eroded disc is more than ...
M. Hosseini, D. Fakhri, N. Behnam
doaj   +1 more source

Schmidt hammer exposure dating for brick masonry

open access: yesGeochronometria, 2020
This research investigates the validity of the Schmidt hammer exposure dating (SHED) technique as a complementary means to date monuments according to the evaluation of the brick decay from masonry exposed to climatic conditions. The degree of surface weathering, I<sub>5</sub> (%) is calculated as an indicator of the ageing effect and ...
openaire   +1 more source

Policy Networks and Policy Entrepreneurship in the EU: Explaining Structural Policy Change in Pharmaceutical Innovation Incentives and Health Technology Assessment

open access: yesEuropean Policy Analysis, EarlyView.
ABSTRACT Policy process research has excelled in explaining structural policy change within national settings, but extensions and applications to the EU level have long proven challenging for scholars. Given that the EU is currently experiencing its longest period of Treaty stability since the 1980s—having evolved into a sui generis political system ...
Vassilis Karokis‐Mavrikos
wiley   +1 more source

The EU's Strategy for Sustainability: A Landmark Turn With the European Green Deal?

open access: yesEuropean Policy Analysis, EarlyView.
ABSTRACT While the European Green Deal (EGD) has been widely recognized as a milestone in the EU's sustainability strategy, scholars disagree on the nature of the policy change it represents. Critics highlight its limited social and environmental ambitions, despite its portrayal as a “man on the moon” moment.
Ekaterina Domorenok, Franco Gatti
wiley   +1 more source

Performance prediction of roadheaders used in coal mines from the needle penetration index and the schmidt hammer value

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources
Coal mine galleries and construction tunnels are commonly excavated using roadheaders. Estimating the performance of roadheaders is crucial for planning and cost estimation when planning tunnel or tunnel projects.
Masoud Rostami   +3 more
doaj   +1 more source

COMPARATIVE ANALYSIS AND EVALUATION OF THE CONVERSION FORMULA FOR REBOUND NUMBER OF SCHMIDT HAMMER TEST AND UNCONFINED COMPRESSIVE STRENGTH TEST – CASE STUDY: ANDESITE ROCK SLOPE IN GRAHA PUSPA, LEMBANG FAULT

open access: yesRudarsko-geološko-naftni Zbornik
The Unconfined Compressive Strength (UCS) test is one of the most common methods for determining the rock material strength value. However, the size and complexity of the instrument do not allow UCS testing to be carried out in the field.
Antonina Pri Martireni   +8 more
doaj   +1 more source

Legacy effects of redlining on the distribution of greenspaces in US cities

open access: yesFrontiers in Ecology and the Environment, EarlyView.
We investigated how a discriminatory housing policy—redlining—has shaped the spatial patterns and configurations of greenspaces throughout 177 cities in the contiguous US. Housing segregation has been a long‐term development practice that has sequestered communities of color to areas with elevated environmental and public health risks.
Travis Gallo   +4 more
wiley   +1 more source

Differential Associations Between Relational Health and Mental Health Among Civilian and Military‐Affiliated Samples Reporting Moral Injury

open access: yesJournal of Counseling &Development, EarlyView.
ABSTRACT The symptoms of anxiety and depression are commonly reported within military‐ and non‐military‐affiliated populations, with considerable evidence available to counselors regarding which relational characteristics function as protective factors among these populations.
A. Stephen Lenz   +2 more
wiley   +1 more source

The stone in a monumental masonry building of the Tyrrhenian coast (Italy): new data on the relationship between stone properties and structural analysis

open access: yesGe-conservación, 2017
In order to assess physical-mechanical properties of building material (“Fuscaldo sandstone”), non-destructive tests have been performed in the main façade of “Palazzo Carelli - Pignatelli” (14th-15th centuries) in Fiumefreddo Bruzio (Italy), situated in
Giulia Forestieri   +2 more
doaj   +1 more source

HIGH SELECTIVE OIL SHALE MINING; pp. 305–325 [PDF]

open access: yesOil Shale, 2013
Several extraction technologies have been used for mining oil shale in Estonia. The quality and properties of the raw material for fuel and oil depend directly on the initial geological properties of the mineral resource.
VIVIKA VÄIZENE   +5 more
doaj   +1 more source

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