Results 101 to 110 of about 14,720 (264)

Parallel Multi‐Operand Addition Using CPA‐Trees and Carry‐Select Adders

International Journal of Circuit Theory and Applications, EarlyView.
A balanced parallel CPA‐tree architecture with CSLA reduces the critical‐path delay of multi‐operand addition while preserving structural regularity. ASIC results demonstrate delay reductions of up to 34% with low area overhead, providing an efficient and scalable solution for high‐performance arithmetic.
Lucas R. Kieslich, Oldemir Chiocchetta Júnior, Fabian Leonardo Cabrera, Hector Pettenghi   +3 more
wiley   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Biological contributions to manganese oxides in rock varnish at Murujuga (Western Australia)

Scientific Reports
Rock varnish is a ubiquitous Mn-rich coating on exposed rock surfaces in arid environments, yet the mechanisms underlying its formation remain debated.
Ying-Li Wu, John Hugh Fairweather, Matthew Campbell, Janet Hergt, Emielda Yusiharni, Michael Smirk, Aaron Dodd, Xiao Sun, Peta Clode, Alysia Hubbard, Morten Erik Allentoft, Jo McDonald   +11 more
doaj   +1 more source

Art, Artists, Rock Art and Underslös

, 2018
In this article, we explore the role that art and artists have had in the history in the discipline, in particular, the history of Underlsös Museum and The Scandinavian Society for Prehistoric Art. In particular, we focus on the links of Gudnitz with the artistic world; in both ne art and academia; as well as how those viewing prehistoric images from ...
openaire   +2 more sources

²³⁰Th dating of flowstone from Ignatievskaya Cave, Russia: Age constraints of rock art and paleoclimate inferences. [PDF]

Geoarchaeology, 2021
Dublyansky Y, Shirokov V, Moseley GE, Kosintsev PA, Edwards RL, Spötl C.   +5 more
europepmc   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source

THE PETROGLYPHS AND INSCRIPTIONS SALIHLER VILLAGE (ANKARA –GÜDÜL) AND THEIR HISTORICAL BACKGROUND

Zeitschrift für die Welt der Türken, 2014
Rock - Art / petroglyphs, contoured by mankind in ancient times have some great importance due to their cultural and artistic products. There are no similar products that specified above.
Necati Demir
doaj  

Probabilistic prediction of rate‐dependent rock strength using natural gradient boosting and Gaussian process regression

Deep Underground Science and Engineering, EarlyView.
Probabilistic natural gradient boosting and Gaussian process regression models accurately predict rate‐dependent rock strength across lithologies. Static strength and strain rate dominate, while geometric factors have minimal influence, enabling interpretable and uncertainty‐aware predictions for dynamic geomechanical applications. Abstract The dynamic
Hadi Fathipour‐Azar
wiley   +1 more source

Climate‐driven resource availability drives medium‐ and broad‐scale temporal changes in owl–prey interactions over 24 years in a semi‐arid ecosystem

Ecography, EarlyView.
Predator–prey interactions are vital to ecosystem functioning but may be disrupted by climate change. We investigated a food‐web network involving three owl species over 24 years in a semi‐arid ecosystem at Bosque Fray Jorge National Park, Chile.
Jazmin M. Quiroz‐Calizaya, Adriana Lozada, Douglas A. Kelt, Alejandra J. Troncoso, Peter L. Meserve, M. Andrea Previtali, W. Bryan Milstead, Julio R. Gutiérrez, Craig Weideman, Nicolas Gouin, Tyler R. Kartzinel, Karin Maldonado, Angéline Bertin   +12 more
wiley   +1 more source