Results 71 to 80 of about 855,477 (278)

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

open access: yesAdvanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan   +2 more
wiley   +1 more source

Two approaches to a portable color-measuring system [PDF]

open access: yes
Descriptions of portable spectrophotometer and reflectometer for color ...
Robertson, K. D.
core   +1 more source

Nanostructured titanium dioxide thin film for dye-sensitized Solar cell applications [PDF]

open access: yes, 2009
Nanostructured Titanium Dioxide (TiC^) thin film for Dye-Sensitized Solid State Solar Cell (DSSSC) application has been synthesized using sol-gel method and deposited onto silicon and glass substrates using spin coating technique.
Ahmad, Mohd Khairul
core  

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

open access: yesAdvanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du   +4 more
wiley   +1 more source

Spectrophotometer-Integrating-Sphere System for Computing Solar Absorptance [PDF]

open access: yes
A commercially available ultraviolet, visible, near-infrared spectrophotometer was modified to utilize an 8-inch-diameter modified Edwards-type integrated sphere.
Perry, John E., Jr.   +2 more
core   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

open access: yesAdvanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger   +11 more
wiley   +1 more source

Comparative Analysis of Total Ozone Data from Satellite EPTOMS and Ground-Based Dobson Instrument at Lagos-Nigeria [PDF]

open access: yes, 2011
This work represents a comparison study of total ozone data from the ground-based Dobson spectrophotometer and the overpass data from satellite instrument EPTOMS in Lagos-Nigeria (Lat.6.6oN, Long 3.3oE) for the year 1997-2002.
Akinyemi, M. L.
core  

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

WATER CHEMICAL ANALYSIS OF WELLS IN THREE SETTLEMENTS OF SUCEAVA PLATEAU, ROMANIA

open access: yesFood and Environment Safety, 2018
Water from wells in Humoreni, Comănești and Soloneț (Suceava County, Romania) was sampled in order to measure the concentration of ammonium, nitrite, nitrate, orthophosphate and sulfide.
Luciana-Alexandra COSTAN (BRICIU)   +3 more
doaj  

Home - About - Disclaimer - Privacy