Results 101 to 110 of about 136,322 (365)

Design, Modeling, and Experimentation of Polar Robot: Assisted Sail and Multimode Motion for Energy Saving

Advanced Intelligent Systems, EarlyView.
This article proposes a polar robot that utilizes assisted sail and multimode motion to achieve energy‐saving. The design, modeling, and experimental methods are introduced. The results show that the energy‐saving effect of the robot using a multimode energy savings control strategy reaches 21.19%, providing technical support for long‐term polar ...
Yongsheng Luo, Zhaokun Guo, Tao Liu, Kaixuan Li, Jinnong Liao, Lefan Guo, Yanhe Zhu, Gangfeng Liu, Jie Zhao   +8 more
wiley   +1 more source

Estratigrafía de Sr y evolución sedimentaria de los depósitos marinos del Mioceno temprano en el antepaís del norte de la Cuenca Austral (o Magallanes), Argentina [PDF]

, 2015
Early Miocene shallow marine deposits in the region of Lago Posadas-Meseta Belgrano (Argentina) represent part of the “Patagoniense” transgression, an Atlantic marine incursion that flooded large part of Patagonia, including the Austral (foreland) Basin (
Alonso Muruaga, Pablo Joaquin, Cuitiño, José Ignacio, Scasso, Roberto Adrian, Ventura Santos, Roberto   +3 more
core   +1 more source

Exploiting Multitask Deep Learning to Identify Multiple Heavy Metal Contamination at Large Scales

Advanced Intelligent Systems, EarlyView.
A multitask deep learning framework evaluates manganese, chromium, and cobalt concentrations in European soils, achieving an average R2 of 0.75. From 2009 to 2015, soil concentrations increase significantly. Source analysis identifies anthropogenic manganese and geological chromium and cobalt origins.
Tao Hu, Qiusong Chen, Fiona H. M. Tang, Sybil Derrible, Liyuan Chai, Zhang Lin, Chongchong Qi   +6 more
wiley   +1 more source

Geochemical and hydrogeological parameters informativity in oil and gas geology

Georesursy
The article discusses the fundamental possibilities of using the results of geochemical and hydrogeochemical studies of organic matter, oils and waters in oil and gas geology, including for objects at the stage of development.
M. A. Bolshakova, A. V. Korzun, A. V. Stoupakova, R. S. Sautkin, A. G. Kalmykov, E. A. Ablya, E. A. Krasnova, N. A. Kharitonova, M. S. Tikhonova, E. V. Kozlova, I. A. Sannikova, T. A. Ryazanova, I. Yu. Belkin   +12 more
doaj   +1 more source

⁸⁷Sr/⁸⁶Sr chemostratigraphy of Neoproterozoic Dalradian limestones of Scotland and Ireland: constraints on depositional ages and time scales [PDF]

, 2004
New calcite ⁸⁷Sr/⁸⁶Sr data for 47 limestones from the metamorphosed and deformed Neoproterozoic-Cambrian Dalradian Supergroup of Scotland and Ireland are used to identify secular trends in seawater <sup>
Ellam, R.M., Fallick, A.E., Graham, C.M., Thomas, C.W.   +3 more
core   +1 more source

Data‐Driven Insights into Rare Earth Mineralization: Machine Learning Applications Using Functional Material Synthesis Data

Advanced Intelligent Systems, EarlyView.
Hydrothermal synthesis records for rare‐earth compounds are repurposed to learn mineralization rules. An extreme gradient boosting model ingests precursors, additives, and engineered descriptors to predict product phases, crystallization temperature, and pH. Feature importance indicates dominant thermodynamic control with kinetic modulation, suggesting
Juejing Liu, Xiaoxu Li, Yifu Feng, Zheming Wang, Kevin M. Rosso, Xiaofeng Guo, Xin Zhang   +6 more
wiley   +1 more source

Communication regarding the geology and vertebrate palaeontology of the Adamantina formation (Bauru group, Upper Cretaceous) in Campina Verde, Minas Gerais State, Brazil

Earth Sciences Research Journal, 2011
Several geological events occurred onthe surface of the earth with the division of the megacontinent Gondwana, including volcanic activity involving extensive lava flows, thus locally and regionally altering the surface's geology. Lava flows in the Serra
A. Candeiro Carlos Roberto, Carvalho Adelino, Silva Limonta Filipi, Sullivan de Jesus Alves Diego, Rangel Caio César, Ferreira de Oliveira Emerson   +5 more
doaj  

Genesis of Pb-Zn-Cu-Ag Deposits within Permian Carboniferous-Carbonate Rocks in Madina Regency, North Sumatra

Indonesian Journal on Geoscience, 2015
DOI:10.17014/ijog.2.3.167-184Strong mineralized carbonate rock-bearing Pb-Zn-Cu-Ag-(Au) ores are well exposed on the Latong River area, Madina Regency, North Sumatra Province.
Bhakti Hamonangan Harahap, Hamdan Zainal Abidin, Wahyu Gunawan, Rum Yuniarni   +3 more
doaj   +1 more source

Breedon Hill [PDF]

, 2013
Breedon Hill forms one of the most prominent features in the landscape of north-west Leicestershire, standing up 50 m above the surrounding ground. That it has been a major landmark throughout recorded history is suggested by its name, which is derived ...
Ambrose, Keith
core  

Color polymorphism in Anemone coronaria: Correlations with soil, climate, and flowering phenology

American Journal of Botany, EarlyView.
Abstract Premise Flower color polymorphism (FCP) is thought to be driven by multiple selection agents. Although widely associated with visual attraction of multiple pollinators, FCP is also often correlated with abiotic factors. We explored the links between abiotic conditions, flowering phenology, and FCP in the winter‐flowering geophyte Anemone ...
Tzlil Labin, Banisha Phukela, Tamar Keasar, Nirit Lavie‐Alon, Yuval Sapir   +4 more
wiley   +1 more source