Results 81 to 90 of about 2,868 (182)

Enhancing Rock Strength Prediction and Features Selection by Coupling Well Log Data and Deep Learning Approaches in Reservoir Geomechanics

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 11, Page 4724-4738, 10 August 2026.
ABSTRACT Accurate rock strength parameters play a vital role in petroleum and mining operations for sustainable drilling activities, and wellbore stability analysis. This study investigates the applicability of deep learning techniques for assessing data‐driven models, and to conduct parametric sensitivity examination for feature attributes ranking to ...
Mohammad Islam Miah, Md. Shakil Rahaman, Travis Wiens   +2 more
wiley   +1 more source

Lichenometry and Schmidt hammer tests in the Kaunertal glacier foreland (Ötztal Alps) during the AMADEE-15 Mars Mission Simulation

Miscellanea Geographica: Regional Studies on Development, 2017
The aim of this article is to show the results of the lichenometrical and Schmidt hammer measurements performed in 2015 during the AMADEE-15 Mars Mission Simulation in the Ötztal Alps in order to test the capabilities of analogue astronauts and collect ...
Czempiński Jan, Dąbski Maciej
doaj   +1 more source

Studi Evaluasi Pengaruh Variasi Mutu Beton Terhadap Kekuatan Struktur Beton Normal Menggunakan Metode Non-Destructive Test dan Destructive Test

Rekayasa Sipil, 2019
To make the examination of the strength of existing building structures easier, can be done by using the NDT methods. It is therefore a study related to the combination of NDT and DT methods to obtain better accuracy of the results.
Bagas Bhanu Aribawa, Indradi Wijatmiko, R. Martin Simatupang   +2 more
doaj   +1 more source

Nitrogen Status Rewires Transcriptional Regulation of Dhurrin, a Dual‐Purpose Defense Metabolite in Sorghum bicolor

Plant Direct, Volume 10, Issue 8, August 2026.
ABSTRACT Dhurrin, a cyanogenic glucoside, plays an important role in Sorghum bicolor physiology and defense. The concentration of dhurrin in sorghum is influenced by both nitrogen status and stage of plant organ development. While nitrogen resupply activates the expression of genes for dhurrin biosynthesis, the molecular mechanisms underlying this ...
Alicia A. Quinn, Brian A. McKinley, Cecilia K. Blomstedt, John E. Mullet, Roslyn M. Gleadow   +4 more
wiley   +1 more source

Evolution of Mechanical Properties of Lava Dome Rocks Across the 1995–2010 Eruption of Soufrière Hills Volcano, Montserrat

Frontiers in Earth Science, 2019
Lava dome collapses pose a hazard to surrounding populations, but equally represent important processes for deciphering the eruptive history of a volcano.
Claire E. Harnett, Jackie E. Kendrick, Anthony Lamur, Mark E. Thomas, Adam Stinton, Adam Stinton, Paul A. Wallace, James E. P. Utley, William Murphy, Jurgen Neuberg, Yan Lavallée   +10 more
doaj   +1 more source

Thinking through payment in fieldwork

American Ethnologist, Volume 53, Issue 3, Page 236-248, August 2026.
Abstract Ethnographic research has long illuminated diverse economic relations. Yet ethnographers have said little about an economic relation that they themselves often rely on: payment in fieldwork. Indeed, the particularities of monetary exchange between ethnographers and their interlocutors often remain hidden—or taboo.
Tijo Salverda, Ben Eyre, Lorraine Nencel, Erella Grassiani, Marina de Regt, Lise Woensdregt, Haiyue Shan   +6 more
wiley   +1 more source

Variability of Schmidt Rebound Values in Volcanic Rocks (Basalt and Lapilli Tuff): Comparative Effect of Surface Roughness, Alteration, and Testing Methods

Applied Sciences
Enhancing the sustainability and safety of rock engineering requires understanding how micro-structural and alteration conditions influence the geomechanical properties of rocks in geotechnical projects.
Kadir Karaman, Gökhan Külekçi, Yaşar Çakır, Hasan Kolaylı   +3 more
doaj   +1 more source

Retinal oxygen saturation and retinal vessel diameter in glaucoma patients before and after trabeculectomy

Acta Ophthalmologica, Volume 104, Issue 5, Page 544-550, August 2026.
Abstract Purpose To compare retinal vessel oxygen saturations and diameters before, 1 and 3 months after trabeculectomy. Methods Retinal oxygen saturations and vessel diameters were obtained using retinal oximetry. The effect of the postoperative intraocular pressure (IOP) decrease on the arteriovenous difference (AV‐difference) was evaluated ...
S. Kemp, A. Ahmadzadeh, B. Schmidt, O. N. Klefter, L. Kessel, D. Bach‐Holm   +5 more
wiley   +1 more source

Relationship of Physical Properties of Limestone and Marblewith Rock Strength Under Specific Geological Conditions from Khyber Region Hunza

International Journal of Economic and Environment Geology, 2020
The uniaxial compressive strength (UCS) is one of the input parameters mostly used in surface and underground designs. A literature review revealed that most of the empirical equations between UCS and Schmidt hammer rebound ...
Naeem Abbas, Javed AkhterQureshi, Garee Khan, Muhammad Alam, Hawas Khan, Yasmeen Bano, Masroor Alam, Shams ur Rehman, Asgar Khan
doaj  

Weathering above the tides: how iceberg-roll-generated waves shape Arctic rocky shores

Polar Research
A significant limitation of the current understanding of cold coast evolution is the paucity of field observations on the development of rocky coasts in glaciated parts of the Arctic.
Oskar Kostrzewa, Małgorzata Szczypińska, Krzysztof Senderak, Mateusz C. Strzelecki   +3 more
doaj   +1 more source