Results 81 to 90 of about 20,450 (300)

Multidisciplinary Characterization of Unconventional Reservoirs Based on Correlation of Well and Seismic Data

Energies, 2020
Combinatorial analysis of key petrophysical parameters can provide valuable information about subsurface hydrocarbon reservoirs. This is particularly important for reservoirs with unconventional rock formations that, due to the low permeability, need to ...
Weronika Kaczmarczyk, Małgorzata Słota-Valim   +1 more
doaj   +1 more source

Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective

Advanced Functional Materials, EarlyView.
Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk, Lukas Benecke, Chokri Cherif, Johannes Mersch   +3 more
wiley   +1 more source

Karyotype depends on sperm head morphology in some amniote groups

Frontiers in Genetics
The karyotype of an organism is the set of gross features that characterize the way the genome is packaged into separate chromosomes. It has been known for decades that different taxonomic groups often have distinct karyotypic features, but whether ...
Eric M. Kramer, Eric M. Kramer, Joshua Enelamah, Hao Fang, P. A. Tayjasanant   +4 more
doaj   +1 more source

Earthquake and slow-slip nucleation investigated with a micro-physics based seismic cycle simulator [PDF]

, 2017
Laboratory experiments grant essential insights into the frictional behaviour of faults over a wide range of conditions. However, these experiments are limited in the size of the test subject (the rock sample) and in their duration, which hinders the ...
Chen, J., van den Ende, M.P.A., Niemeijer, A.R., Ampuero Saenz, J.P., Experimental rock deformation   +4 more
core  

Giant Magnetic Coercivity Driven by Spin‐Bag Ferromagnetism in Epitaxial Sr3YCo4O10+δ Films with Engineered 2D Oxygen Vacancy Ordering

Advanced Functional Materials, EarlyView.
A giant magnetic coercivity and a vertical shift of hysteresis loops are demonstrated in Sr3YCo4O10+δ epitaxial films. The hard magnetic behavior originates from ferromagnetic spin bags stabilized within a long‐range ordered oxygen‐vacancy structure.
Yanbin Chen, Roger Guzman, Xiaomin Jia, Jialu Wu, Xing Xu, Li Sun, Jinbo Pan, Shixuan Du, Myung‐Hwan Whangbo, Wu Zhou, Jing Ma, Ce‐wen Nan, Chonglin Chen   +12 more
wiley   +1 more source

Microscopic Origin of Temperature‐Dependent Anisotropic Heat Transport in Ultrawide‐Bandgap Rutile GeO2

Advanced Functional Materials, EarlyView.
Rutile GeO2${\rm GeO}_{2}$ exhibits orientation‐dependent heat transport with temperature‐dependent anisotropy, showing higher cross‐plane thermal conductivity along [001] than along the equivalent in‐plane [100] and [010] directions. Temperature‐dependent TDTR measurements and first‐principles phonon calculations identify the microscopic phonon ...
Pouria Emtenani, Marta Loletti, Felix Nippert, Eduardo Bedê Barros, Zbigniew Galazka, Hans Tornatzky, Christian Thomsen, Juan Sebastián Reparaz, Riccardo Rurali, Markus R. Wagner   +9 more
wiley   +1 more source

Synthesis of Nickel-Based Nanoparticles by Pulsed Laser Ablation in Liquids: Correlations between Laser Beam Power, Size Distribution and Cavitation Bubble Lifetime

Metals
Pulsed laser ablation in liquids (PLAL) is a colloidal synthesis technique attracting significant interest from the scientific community due to the quality of the nanoparticles being produced.
Atikur Rahman, Grégory Guisbiers
doaj   +1 more source

Carbonate pore type classification by using digital rock images with a rock physics model, offshore Sarawak [PDF]

, 2014
It has been documented that Carbonate contributes the most hydrocarbon resources worldwide. For rigorous reservoir characterization and performance prediction from seismic, the exact interpretation of geophysical response of different Carbonate pore ...
Z.Z.T. Harith, Ghosh, D. P., D.P. Ghosh, L.A. Lubis, Tuan Harith, Zuhar Zahir, Lubis, L. A.   +5 more
core   +1 more source

Electrolyte‐Induced Cu+ Preservation Results in a Selectivity Switch of Electrocatalytic CO2 Reduction at a Copper‐Organic Framework as Electrocatalyst

Advanced Functional Materials, EarlyView.
The active role of KCl as a neutral electrolyte enables switching the selectivity on a Cu organic framework from C1 to C2+ products during electrocatalytic CO2 reduction. ABSTRACT We introduce a copper‐nicotinate (Cu‐NA) framework as a halogenide‐stabilized Cu+/Cu0 pre‐catalyst for electrocatalytic CO2 reduction with high C2+ selectivity in a “neutral”
Anirudha Shekhawat, Muhammad Adib Abdillah Mahbub, Lejing Li, Bashir Eid, Ridha Zerdoumi, Sabine Seisel, Carla Santana Santos, Nini Zhang, Thomas Quast, Xin Wang, Wolfgang Schuhmann, Debanjan Das   +11 more
wiley   +1 more source

Rock physics experiment and rock physical modeling of hot dry rock under high temperature

矿业科学学报, 2023
Currently, the investigation and monitoring of geothermal energy face significant challenges, and a lack of understanding regarding the variations in physical parameters of hot dry rock reservoirs with temperature is a crucial factor. In this study, 29 hot dry rock samples from the Gonghe Basin in Qinghai Province were subjected to high-temperature ...
Gao Wanli, Zhao Jingtao, Wang Huawei
openaire   +1 more source