Results 91 to 100 of about 4,160,392 (328)

Photoswitchable Conductive Metal–Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu   +5 more
wiley   +1 more source

THE FIRST FINDING OF NATIVE BISMUTH, WAYLANDITE AND BEYERITE IN ALLUVIAL GOLD PLACER DEPOSITS OF ANGARA REGION, YENISEI RIDGE [PDF]

open access: yesМинералогия, 2017
The pebbles from alluvial gold placer deposits of the upper reaches of the Tatarka river in Angara region, Yenisei Ridge, are composed of bismuth minerals: crystal aggregates of native bismuth and pseudomorphic secondary oxides, carbonates, and ...
S.V. Pribavkin   +5 more
doaj  

User-centered design of central venous access device documentation. [PDF]

open access: yesJAMIA Open, 2022
Kandaswamy S   +10 more
europepmc   +1 more source

The Effects of Surface Disturbances on the Leaching of Heavy Metals [PDF]

open access: yes, 1987
The harmful effects of heavy metal contamination of surface waters impacted by gold mining activity are well documented. An examination was conducted on the effects of surface disturbances in Wade Creek on the concentrations of heavy metals in ...
Brown, Edward J., Dixson, David P.
core  

Organic Electrochemical Transistor Channel Materials: Copolymerization Versus Physical Mixing of Glycolated and Alkoxylated Polymers

open access: yesAdvanced Functional Materials, EarlyView.
This work discusses the use of blended channel materials in OECTs. It explores how mixing glycolated and alkoxylated polymers in various ratios offers a simpler and more efficient route to tuning OECT properties. The performance of the polymer blends is compared to the corresponding copolymers, demonstrating similar OECT characteristics, swelling ...
Lize Bynens   +14 more
wiley   +1 more source

Deposits of gold-quartz formation in the Priamur province

open access: yesЗаписки Горного института, 2017
A description of gold-quartz formation deposits in the Priamur gold province is presented. Prevalence of gold-quartz deposits defines metallogenic profile of the province and presence of numerous rich placers.
V. A. Stepanov, A. V. Mel'nikov
doaj   +1 more source

Archaeological science, globalisation, and local agency: gold in Great Zimbabwe. [PDF]

open access: yesArchaeol Anthropol Sci, 2023
Vieri J   +3 more
europepmc   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song   +4 more
wiley   +1 more source

Small-scale surface mining of gold placers: Detection, mapping, and temporal analysis through the use of free satellite imagery

open access: yesInternational Journal of Applied Earth Observation and Geoinformation, 2020
E. Ibrahim   +4 more
semanticscholar   +1 more source

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