Results 111 to 120 of about 38,739 (261)

Evaluating the mineral nutrient status of fresh pasture herbage using laser-induced breakdown spectroscopy

open access: yes, 2014
Comprehensive determination of the mineral nutrient status of pasture or horticultural crops currently requires leaf or herbage samples to be harvested and taken to a laboratory for analysis, which is both labour-intensive and time-consuming.
Schaare, P.   +2 more
core  

Mineral elements of some wild plants of traditional uses in the Moroccan Rif Mountains

open access: yes
Background Wild edible plants (WEPs) that are part of the Mediterranean diet and used in Moroccan traditional food and therapy are now less or not used. This requires their valorization to avoid the threat of their disappearance.
Belkassem El Amraoui   +8 more
core   +1 more source

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

open access: yesAdvanced Materials, EarlyView.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti   +12 more
wiley   +1 more source

Clay minerals and their gallery guests: an ab initio investigation into their interactions. [PDF]

open access: yes, 2011
Clay minerals are ubiquitous and readily accessible in the natural environment and consequently have become an essential ingredient in the development of Western Society.
GEATCHES, DAWN,LESLEY   +1 more
core  

Chiral Microneedle Arrays With Terahertz Chiroptical Activity With Chiral‐Plasmon‐Chiral‐Phonon Resonance

open access: yesAdvanced Materials, EarlyView.
ABSTRACT Microneedle arrays (MNAs) is a rapidly emerging technology with broad biomedical applications in drug delivery and biosensing. With sub‐millimeter dimensions and periodicity, MNAs possess geometries nearly ideal for biomedical devices operating within the terahertz (THz) spectral window.
Sang Hyun Lee   +6 more
wiley   +1 more source

Dexime: A Selectively Enzyme‐Degradable Hydrogel for Protein Therapeutic Release

open access: yesAdvanced Materials, EarlyView.
A dextrin‐oxime hydrogel (dexime) is produced using ketone or aldehyde modified dextrin and tetra‐oxyamine modified poly(ethylene glycol). The rheological and mechanical properties of dexime are tunable. Dexime is injectable, cytocompatible, hydrolytically stable, and selectively degradable by α‐amylase.
Quinton E. A. Sirianni   +5 more
wiley   +1 more source

Topographic Wetness Index as a Factor of the Toxic Metals’ Accumulation by the Alkaline Sorption Barrier and the Choice of Revegetation Strategy in the Subarctic

open access: yesSoil Systems
Creation of alkaline bulk layers from mining waste is economically viable way to prevent the migration of toxic metals down the soil profile and revegetate heavy polluted soils over large areas. We have conducted perennial experiments on the revegetation
Marina Slukovskaya   +8 more
doaj   +1 more source

A Mineral X-ray Linear Attenuation Coefficient Tool (MXLAC) to Assess Mineralogical Differentiation for X-ray Computed Tomography Scanning

open access: yes, 2020
X-ray computed tomography (XCT) is becoming one of the most important techniques in the geosciences. The technique relies on linear attenuation coefficient differences in order to reveal the internal structure of the rocks. In this work, we present a new
Megan Becker, Lunga Bam, Jodie Miller
core   +1 more source

Elephant‐Skin‐Inspired Porous Cementitious Tiles with Programmable Crack Networks for Passive Cooling

open access: yesAdvanced Materials, EarlyView.
Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang   +5 more
wiley   +1 more source

Research progress of enrichment characteristics of hazardous mineral matter in coal and their migration and transformation during thermal technology

open access: yesMeitan xuebao
Low-carbon, zero-emission, and efficiency enhancement are the main themes of clean coal utilization today. The slagging and pollution caused by mineral matter in coal are key bottlenecks in clean coal technologies.
Yuegang TANG   +8 more
doaj   +1 more source

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