Results 51 to 60 of about 2,264,815 (333)

A Geographic Information Systems (GIS)-Based Approach to Derivative Map Production and Visualizing Bedrock Topography within the Town of Rutland, Vermont, USA

open access: yesISPRS International Journal of Geo-Information, 2014
Many state and national geological surveys produce map products from surficial and bedrock geologic maps as a value-added deliverable for a variety of stakeholders.
John G. Van Hoesen
doaj   +1 more source

Geologic mapping of Vesta [PDF]

open access: yesPlanetary and Space Science, 2014
We report on a preliminary global geologic map of Vesta, based on data from the Dawn spacecraft's High- Altitude Mapping Orbit (HAMO) and informed by Low-Altitude Mapping Orbit (LAMO) data. This map is part of an iterative mapping effort; the geologic map has been refined with each improvement in resolution.
Yingst, R.A.   +16 more
openaire   +4 more sources

A Molten Salt Extraction Method for Palladium Recovery via the CaPd2 Intermetallic Compound

open access: yesAdvanced Science, EarlyView.
A designed Ca → CaPd2 → Pd pathway enables acid–free palladium recovery in molten salt. Calcium alloying forms anionic CaPd2, which is selectively oxidized by iodine from CaI2 to yield high–purity metallic Pd. ABSTRACT To address palladium scarcity and the low efficiency of conventional recovery processes, this work presents a molten–salt extraction ...
Jiapeng Zhang   +6 more
wiley   +1 more source

Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction

open access: yesAdvanced Science, EarlyView.
Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen   +5 more
wiley   +1 more source

Spectral‐Kinetic Synergy in Au‐Network Engineered FeTiO3: A Multi‐Field Coupling Strategy for Lunar In Situ Resource Utilization

open access: yesAdvanced Science, EarlyView.
How can humanity achieve lunar self‐sufficiency? We utilize Au topology networks to modify the abundant lunar ilmenite. This catalyst, under sunlight, can convert waste carbon dioxide into space fuel. This design leverages the moon's natural vacuum for green manufacturing, avoiding the waste of gold and serving as “artificial chloroplasts” to sustain ...
Yahang Wang   +9 more
wiley   +1 more source

Semantic Models for the Geological Mapping Process [PDF]

open access: yes, 2017
The geologic mapping process requires the organization of data according to the general knowledge about the objects in the map, namely the geologic units, and to the objectives of a graphic representation of such objects in a map, following some established model of geotectonic evolution.
Lombardo V. [1   +6 more
openaire   +4 more sources

Single–Atom Iron Sites Enable Enhanced Arsenic Removal From Water Through Synergistic Adsorption–Oxidation

open access: yesAdvanced Science, EarlyView.
Single–atom iron anchored on nitrogen–doped porous biochar exhibited ultra–efficient performance, exceptional environmental resilience, and integrated adsorption–oxidation functionality. The multifunctional architecture of the support and the unparalleled reactivity of single–atom iron underpinned the cooperative adsorption and oxidation of As(III ...
Tao Sun   +8 more
wiley   +1 more source

Geology of the Šalek valley and the surrounding areas from written sources

open access: yesGeologija, 2007
In the paper are presented the oldest written records on Natural History, and especially the Earth Sciences concerning the [alek valley and surroundings, and that are of exceptionalcultural heritage value.
Aleksander Brezigar
doaj  

Accurate Feature Extraction from Historical Geologic Maps Using Open-Set Segmentation and Detection

open access: yesGeosciences
This study presents a novel AI method for extracting polygon and point features from historical geologic maps, representing a pivotal step for assessing the mineral resources needed for energy transition. Our innovative method involves using map units in
Aaron Saxton   +9 more
doaj   +1 more source

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