Results 101 to 110 of about 42,604 (255)

The Effects of Foliar Sprays with Different Silicon Compounds

open access: yesPlants, 2018
The use of foliar sprays with silicon compounds is relatively new. Initially (in 1990) foliar sprays with silicates were used. In 2003, foliar sprays with (stabilized) silicic acid were introduced, and more recently foliar sprays with silica ...
Henk-Maarten Laane
doaj   +1 more source

Autonomous X‐Ray Fluorescence Mapping for Nanoscale Chemical Speciation of Fine Particulate Matter

open access: yesAdvanced Intelligent Discovery, EarlyView.
We present X‐AutoMap, an autonomous X‐ray fluorescence mapping framework that integrates real‐time analysis with rule‐based computer vision to selectively target chemically relevant regions. By avoiding background‐dominated areas, the method reduces acquisition time by fourfold while enabling accurate particle‐level speciation.
Carlos Deleon   +3 more
wiley   +1 more source

Hydration Behavior of Tricalcium Silicate in Seawater Relevant Salt Systems: A Hybrid Study with the Aid of Machine Learning

open access: yesAdvanced Intelligent Discovery, EarlyView.
The hydration behavior of C3S in seawater‐relevant solutions is studied based on experiments, boundary nucleation and growth (BNG) modeling, and machine learning. The main ions included in seawater modify hydration mechanisms, with MgCl2 showing the strongest acceleration effect at the same concentration.
Yanjie Sun   +6 more
wiley   +1 more source

NanoSIMS-Analyse und hochauflösende Elektronenmikroskopie an präsolaren Silikaten aus roten Riesensternen und Supernovaexplosionen [PDF]

open access: yes, 2009
This thesis deals with the analysis of “presolar” silicates and oxides by high resolution mass spectrometry and electron microscopy techniques. This “stardust” was identified by its extreme oxygen isotopic anomalies, which point to nucleosynthetic ...
Vollmer, Christian
core  

Amorphous Silicates in Primitive Meteoritic Materials: Acfer 094 and IDPs [PDF]

open access: yes, 2009
The abundance of presolar grains is one measure of the primitive nature of meteoritic materials. Presolar silicates are abundant in meteorites whose matrices are dominated by amorphous silicates such as the unique carbonaceous chondrite Acfer 094 ...
Nakamura-Messenger, K.   +3 more
core  

Effect of Microwave Fields on the Properties of Silicates with an Aluminum-Sodium-Chloride Modifier [PDF]

open access: yes, 2017
© 2017 Springer Science+Business Media New YorkThe results of microwave treatment of silicates (bentonite clay and diatomite), the impact of microwaves on the structure and technological characteristics of water suspensions of silicates, and the physical
Zhenzhurist I.
core  

Vapor Deposition of Metal Oxides and Silicates:  Possible Gate Insulators for Future Microelectronics

open access: yes, 2016
Vapor Deposition of Metal Oxides and Silicates:  Possible Gate Insulators for Future ...
Seigi Suh (2718529)   +3 more
core   +1 more source

Computational and physical problems for nonlinear charge transport in silicates

open access: yes
It has been shown that nonlinear waves can transport localized energy in silicates, both as neutral entities and carrying electric charge. The latter is of particular interest because it provides a magnitude to measure, the electric current.
Doi, Yusuke   +3 more
core  

A spectral difference between silicates in Comet Halley and interstellar silicates [PDF]

open access: yes, 1989
The authors obtained an intermediate resolution (1 percent) spectrum of the 8 to 13 micron region in Comet Halley which shows a prominent silicate emission feature with structure not observed before in other comets or in interstellar silicates.
Campins, Humberto, Ryan, Eileen V.
core  

(Table 1) Rb-Sr contants and ratios of calcites and silicates of DSDP Hole 51-417A

open access: yes, 1980
(Table 1) Rb-Sr contants and ratios of calcites and silicates of DSDP Hole 51 ...
Staudigel, Hubert   +5 more
core   +1 more source

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