Results 81 to 90 of about 88,261 (305)

Determination of Rare Earth Oxides in Bauxite by Inductively Coupled Plasma-Optical Emission Spectrometry

open access: yesYankuang ceshi, 2020
BACKGROUND When the rare earth oxides in bauxite are determined by inductively coupled plasma-optical emission spectrometry (ICP-OES), acid dissolution often results in incomplete dissolution of samples, and a large amount of fluxes at high temperature ...
HU Xuan
doaj   +1 more source

Bioavailability of Cu and Zn in raw and anaerobically digested pig slurry [PDF]

open access: yes, 2009
The impact of anaerobic digestion on the bioavailability of copper and zinc from pig slurry was assessed. Both chemical and biological approaches were used independently on raw slurry (RS) and anaerobically digested pig slurry (DS).
Cecchi, Marie   +4 more
core   +2 more sources

Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control

open access: yesAdvanced Functional Materials, EarlyView.
A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong   +7 more
wiley   +1 more source

A geração química de vapor em espectrometria atômica Chemical vapor generation in atomic spectrometry

open access: yesQuímica Nova, 2002
The historical development of atomic spectrometry techniques based on chemical vapor generation by both batch and flow injection sampling formats is presented.
Iracema Takase   +4 more
doaj   +1 more source

Mechanism of reduced sintering temperature of Al2O3–ZrO2 nanocomposites obtained by microwave hydrothermal synthesis [PDF]

open access: yes, 2018
A novel method to obtain Al2O3–ZrO2 nanocomposites is presented. It consists of the co-precipitation step of boehmite (AlO(OH)) and ZrO2, followed by microwave hydrothermal treatment at 270 °C and 60 MPa, and by calcination at 600 °C.
Ganin, Alexey   +7 more
core   +1 more source

An In Situ Embedded B‐MOF Sponge With Shape‐Memory for All‐in‐One Diabetic Wound Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
A smart shape‐memory sponge dressing (P1A3@B‐MOF) is developed for accelerated diabetic wound healing. It achieves pH‐responsive corelease of Zn2+ and salvianolic acid B, synergistically providing antibacterial action, repolarizing macrophages to the M2 phenotype, and promoting angiogenesis.
Hai Zhou   +11 more
wiley   +1 more source

Bioactivity of toothpaste containing bioactive glass in remineralizing media: effect of fluoride release from the enzymatic cleavage of monofluorophosphate [PDF]

open access: yes, 2015
Objectives. The aim was to introduce a new methodology to characterize toothpaste containing bioactive glass and to evaluate the effect of release of fluoride ions, by cleaving monofluorophosphate (MFP), on the mineral forming ability of Sensodyne Repair
Earl, JS   +3 more
core   +1 more source

High‐Performance Electrocatalysts of Potassium Lactate Oxidation for Hydrogen and Solid Potassium Acetate Production

open access: yesAdvanced Materials, Volume 37, Issue 13, April 2, 2025.
Potassium lactate, produced from polylactic acid plastic waste, is oxidized to potassium acetate on an anode using Ni(Co)OOH as the electrocatalyst, while hydrogen is simultaneously generated at the cathode, through a highly efficient industrial‐scale electrolysis system.
Jun Hu   +9 more
wiley   +1 more source

Ashes for organic farming [PDF]

open access: yes, 2013
Nowadays only eight percent of the cultivated field area is used for organic farming. The Ministry of Agriculture and Forestry has published the guidelines for the program of organic farming to diversify the supply and the consumption of organic food ...
Heinonen, M.   +3 more
core  

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