Results 91 to 100 of about 2,000 (199)

GEOELECTRICAL CHARACTERISTICS OF GOLD ORE DEPOSITS OF THE UPPER PRIAMURYE REGION

open access: yesTikhookeanskaya Geologiya, 2019
The results of measurements of the electrical properties of rocks and induced polarization surveying are analyzed for three gold-ore deposits including the Bamskoe, Berezitovoe, and Pokrovka in the Upper Priamurye region. The spatial correlation is shown between mineralization zones and contrasting resistivity boundaries mapped within the gold-ore ...
openaire   +1 more source

Indigenous Perspectives of Mining in Fiji: The Relevance of Putting Indigenous Knowledge at the Core of Development Initiatives

open access: yesBusiness Strategy &Development, Volume 9, Issue 1, March 2026.
ABSTRACT Mining is crucial to the development of developing countries. This article studies the perspective of Indigenous peoples of Fiji (iTaukei) on the impact of mining on their development. Considering Indigenous knowledge at the core of this research, a unique qualitative methodology that integrates Vakumuni Vuku ni Vanua (gathering wisdom of the ...
Eduardo Ordonez‐Ponce   +2 more
wiley   +1 more source

Incorporation of Coconut Fibers Into Clay‐Based Mortars: A Study on Mechanical and Microscopic Behavior

open access: yesInternational Journal of Ceramic Engineering &Science, Volume 8, Issue 2, March 2026.
Clay‐based mortar reinforced with coconut fibers showed improved flexural strength and promising mechanical performance, despite shrinkage‐induced cracks. The study highlights the potential of using waste and natural fibers in eco‐efficient mortars, emphasizing the importance of curing and moisture control.
Gabriela Machado Guimarães Ferreira   +1 more
wiley   +1 more source

A genetic model for the Los Uvares gold deposit, Baja California Sur, Mexico

open access: yesGeofísica Internacional, 1997
Los Uvares gold deposit is a relatively small ore deposit (~500,000 tons of ore averaging 3 grams of gold per ton), lo¬cated in the crystalline complex of the Cabo San Lucas block in southern Baja California peninsula.
H. Huyck, A. Carrillo
doaj  

The Promise of Solid Lubricants for a Sustainable Future

open access: yesAdvanced Materials, Volume 38, Issue 8, 6 February 2026.
Lubricants are vital for technology, saving energy and resources. The industry seeks sustainable solutions beyond fossil fuels. Solid lubricants offer extremely low friction and reduce environmental impact, especially in harsh conditions. Can these solids truly replace liquid lubricants, or are they limited to extreme applications?
Philipp G. Grützmacher   +7 more
wiley   +1 more source

A Facile Route to Large‐Area 2D Pt

open access: yesAdvanced Science, Volume 13, Issue 8, 9 February 2026.
This work demonstrates a simple route to form continuous 2D platinum (Pt) films only up to 0.3 nm thick using a gallium oxide (GaOx) adhesion layer. The oxygen‐deficient GaOx reverses wetting thermodynamics, enabling scalable sputtering of transparent, conductive, and robust 2D Pt.
Minsik Kong   +5 more
wiley   +1 more source

Defect Engineering in Large‐Scale CVD‐Grown Hexagonal Boron Nitride: Formation, Spectroscopy, and Spin Relaxation Dynamics

open access: yesSmall, Volume 22, Issue 8, 6 February 2026.
The controlled formation of defects in large‐area CVD‐grown hBN using various irradiation methods is demonstrated. Defect type and properties depend on particle type (He+, Ne+, Ar+, neutrons, and electrons), substrate effects, and film thickness.
Ivan V. Vlassiouk   +22 more
wiley   +1 more source

Semidiaphanam Tremuli Narcissuli Ideam Lacteam1: Ehrenfried Walther von Tschirnhaus (1651–1708) and His Determined Search for the Porcelain Principle

open access: yesArchaeometry, Volume 68, Issue 1, Page 120-131, February 2026.
ABSTRACT With this contribution, an attempt is being made to chart the timeline of the invention of the European hard‐paste porcelain based on historical documents. They were evaluated to trace the development lines from Tschirnhaus's early experiments with burning mirrors and lenses in the 1680s to finding ‘wax porcelain’ around 1694 to the ...
Robert B. Heimann
wiley   +1 more source

Beyond National Currency: The Plurality of Early Modern Money

open access: yesHistory Compass, Volume 24, Issue 1, February 2026.
ABSTRACT Diversity in money leaps at historians of early modern societies, whether they analyse account books, legal documents, travelogues and diaries, or try to make sense of a sum casually mentioned in a source from the period. The plurality of money objects contrasts with the homogeneous, singular currencies imposed by nation‐states in the 19th and
Sebastian Felten
wiley   +1 more source

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