Results 41 to 50 of about 9,063 (265)

Geological History of the Dry Valleys, Antarctica, Based on the Stable Isotope Studies

Antarctic Record, 1977
In 1973, DVDP 4 drilling was performed to obtain unconsolidated sediments of Lake Vanda, McMurdo Oasis. The cored sediments were found to contain layered salt concretions composed of gypsum, thenardite and calcite.
Nobuyuki NAKAI, Yoshihiko MIZUTANI
doaj   +1 more source

Design Principles of Electrocatalysts for Industrial‐Scale Water Electrolysis

Advanced Energy Materials, EarlyView.
This Review distills electrocatalyst design for industrial‐scale water electrolysis into integrated principles linking active‐site engineering, phase and lattice modulation, interfacial microenvironment regulation and mass‐transport control. By connecting catalyst families with HER/OER mechanisms and practical operating demands, it outlines pathways ...
Hong Tang, Cui Ce, John Wang
wiley   +1 more source

Stability of Saltwater‐Freshwater Mixing Zones in Beach Aquifers With Geologic Heterogeneity

Water Resources Research
Saltwater‐freshwater mixing zones in beach aquifers support biogeochemical reactions that moderate chemical loads in fresh groundwater discharging to marine ecosystems.
Olasunkanmi Olorunsaye, James W. Heiss
doaj   +1 more source

Upper Cambrian-Ordovician reservoir characteristics in Well Gucheng-4 area, Tarim Basin

Petroleum Exploration and Development, 2008
: Based on the data of regional geologic background, core, and thin section, this paper studies the characteristics of sedimentary facies and reservoirs of the Upper Cambrian-Ordovician in Well Gucheng-4, Tarim Basin, and points out the potential and ...
Chang-jian ZHU, Zhong-yao XIAO, Bao-min ZHANG, Ying-ai JIN, Hong SANG, Yong-fu LIU, Qing-ning DANG   +6 more
doaj   +1 more source

Assessing Photovoltaic Recycling Capacities and Policy Gaps in the European Union

Advanced Energy and Sustainability Research, EarlyView.
This study maps photovoltaic recycling capacity in the EU and key global regions, highlighting gaps between growing waste volumes and available infrastructure. It combines survey insights and policy analysis to identify recycling bottlenecks and offers recommendations to boost circularity in the solar sector.
Nieves Espinosa, Silvia Bobba, Cynthia E. L. Latunussa, Enrica Leccisi   +3 more
wiley   +1 more source

The oldest stratigraphic record of the Late Cretaceous shark Ptychodus mortoni Agassiz, from Vallecillo, Nuevo León, northeastern Mexico

Revista Mexicana de Ciencias Geológicas, 2018
In this paper we report the oldest geologic world record of Ptychodus mortoni, from the Vallecillo Member (Agua Nueva Formation), at Vallecillo, Nuevo León, northeastern Mexico.
Alberto Blanco-Piñón, Luis M. Garibay-Romero, Jesús Alvarado-Ortega   +2 more
doaj  

The Geological Survey of Canada sedimentation flume

, 1972
A recirculating, tiltable, sedimentation flume has been constructed, primarily for research on fluvial processes, although the apparatus can be adapted easily to studies of lacustrine and certain beach phenomena. The main channel is 18. 3 metres long, O. 76 metres wide, and O. 6 metres deep. A transparent acrylic section 5 metres long exists in each of
openaire   +1 more source

Bioconvective Unsteady Casson Hybrid Nanofluid Flow on a Variable Darcy Regime Between Two Rotating Disks With Variable Heat Source

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne, Abdul Bariq, Mounirah Areshi, Fahad Maqbul Alamrani, Zehba Raizah, Izharul Haq, Anwar Saeed   +6 more
wiley   +1 more source

BarnebyLives: An R package to create herbarium specimen labels and clean spreadsheets

Applications in Plant Sciences, EarlyView.
Abstract Premise Accessioning herbarium specimens is labor intensive, yet remains vital for research in ecology, evolution, and conservation. As institutional support for herbaria declines, efficient tools are needed to streamline this process. The R package BarnebyLives was developed to assist collectors by supplementing collection notes, verifying ...
Reed Clark Benkendorf, Jeremie B. Fant
wiley   +1 more source

A synthesis of available detrital zircon data from the Qilian‐Qaidam‐Kunlun collage, northern Tibet

Geoscience Data Journal
In this article, we present a brief introduction to the procedure, methods and results of the collection and summarization of an updated detrital zircon U–Pb geochronology database for the Qilian‐Qaidam‐Kunlun collage in northern Tibet.
Weidong He, Jiaopeng Sun, Yunpeng Dong, Tao Qian, Teng Wang, Lei He, Yukun Qi   +6 more
doaj   +1 more source