Results 51 to 60 of about 817,166 (220)

Fracture Development Mechanism of Water‐Isolating Soil Layers During Downward Mining of Shallow‐Buried Coal Seam Groups

Energy Science &Engineering, EarlyView.
This study systematically investigates the fracture development mechanisms of water‐isolating soil layers under the coupled effects of repeated mining and groundwater seepage during the downward mining of shallow‐buried coal seams. The findings provide a theoretical basis for evaluating stratum stability and preventing roof water inrush.
Tao Yang, Shuqi Zhang, Jie Zhang, Haifei Lin, Dong Liu, Hui Liu, Yiming Zhang, Jianping Sun   +7 more
wiley   +1 more source

Prediksi Kuat Tekan Beton Agregat Recycled Campuran Air Laut dengan Schmidt Rebound Hammer Test

Rekayasa Sipil, 2023
Nowadays, using recyled aggregate and seawater as replacing natural aggregate and freshwater in mixing have been main priority to be a new concrete construction material.
Lusman Sulaiman, Ispianto, Muhammad Fahrizal Nur, Umar Hamzah Matottorang   +3 more
doaj   +1 more source

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

Journal 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, Jessica Holm, Christine D. Gonzales‐Wong   +2 more
wiley   +1 more source

Schmidt-hammer exposure-age dating (SHD) of sorted stripes on Juvflye, Jotunheimen (central South Norway): Morphodynamic and palaeoclimatic implications [PDF]

, 2020
Measurements with an electronic Schmidt-hammer (RockSchmidt) were conducted on 23 sites of sorted stripes (periglacial patterned ground) on Juvflye, Jotunheimen (central South Norway).
Haselberger, Stefan, Mourne, Richard, Owen, Geraint, Mourne, Richard W, Hill, Jennifer, Matthews, John, Matthews, John A, Geraint Owen, John Matthews, Winkler, Stefan, Wilson, Peter, Wilson, Peter; id_orcid, Jennifer L. Hill, Peter Wilson, Stefan Winkler, Stefan Haselberger, Richard W. Mourne, John A. Matthews   +17 more
core   +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

Rudarsko-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, Wira Cakrabuana, Koko Hermawan, Khori Sugianti, Arifan Jaya Syahbana, Sunarya Wibawa, Eko Soebowo, Adrin Tohari, Hasan Tri Atmojo   +8 more
doaj   +1 more source

New Schmidt hammer exposure‐age dating calibrations for the Last Glacial Termination in NW Scotland: Development and application to undated Torridon Group sandstone surfaces in Wester Ross

Journal of Quaternary Science, EarlyView.
ABSTRACT An understanding of the terrestrial extent, retreat dynamics and climate–glacier coupling of ice masses during the Last Glacial Termination (LGT, ~18–11 ka) is often limited by a fragmentary geomorphological record and is dependent on precise, accurate and robust dating frameworks.
Alastair M. Curry, David Small, Oliver T. Bartlett, Jonathan Newitt   +3 more
wiley   +1 more source

Modification of rock fabric of clastic sedimentary rocks due to the Schmidt hammer test [PDF]

, 2013
iv Summary Schmidt hammer is the instrument which is used for the assessment of rock mechanical properties and this instrument is classified as the indirect method.
Snížek, Petr
core  

Crop landrace conservation, status, challenges and motivations in Great Britain

PLANTS, PEOPLE, PLANET, EarlyView.
Recent agricultural intensification has led to the widespread replacement of genetically diverse crop landraces with high‐yielding but genetically uniform modern cultivars, reducing the adaptive resilience of farming systems. In the United Kingdom, where large‐scale agriculture dominates, landraces require urgent conservation action.
Gabrielle Clarke, Joana Magos Brehm, Michael Ambrose, Abigail Cooke, Eve Eunson, Henry Creissen, Nigel Maxted   +6 more
wiley   +1 more source

Paid‐free differentiation in freemium: Understanding the balance between discovery and cannibalization and its implications for paid product sales

Strategic Entrepreneurship Journal, EarlyView.
Abstract Research Summary Entrepreneurs in digital markets often introduce free versions of their paid products to boost their visibility. This freemium strategy involves a trade‐off between discovery and cannibalization. We study how feature‐based differentiation between the paid product and its free version shapes this trade‐off and its consequences ...
Joey van Angeren, Ksenia Podoynitsyna, Fred Langerak   +2 more
wiley   +1 more source

Prediction of the mechanical properties of granites by ultrasonic pulse velocity and Schmidt hammer hardness [PDF]

, 2007
The present work deals with the use of simple and economical non destructive techniques, ultrasonic pulse velocity and Schmidt hammer to predict the strength and elastic properties of granitic stones that are characteristic in ancient masonry ...
Vasconcelos, Graça, Lourenço, Paulo B., Pamplona, J., Alves, C. A. Simões   +3 more
core   +2 more sources