Results 41 to 50 of about 248,294 (326)

Steric Effects of Alkyl Ammonium Salts on the Combustion of Exchanged Smectite Clays [PDF]

open access: yes, 2018
Bomb calorimetry was explored as a new method for determining the cation exchange capacity (CEC) of clays. Smectite clays were modified with several alkyl ammonium salts varying in number of carbons and the spatial orientation of the carbons about the ...
Keith, Celeste A.
core   +1 more source

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

open access: yesAdvanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano   +18 more
wiley   +1 more source

Research on a soft PLC system architecture based on industrial cloud

open access: yesDianzi Jishu Yingyong, 2021
In the field of industrial automation, factory control is often performed by Pro-grammable Logic Controller(PLC).With the application of automation becoming more and more miniaturized and flexible, it is uneconomical to use, design and maintain a full ...
Chen Hai
doaj   +1 more source

Molecular‐Level Insights into Interfacial Adsorption Mechanisms of PFOA on Functional Dolomite Surfaces via AIMD and Spectroscopy

open access: yesAdvanced Materials Interfaces, EarlyView.
Perfluorooctanoic acid (PFOA), ab initio molecular dynamics (AIMD), density functional theory (DFT), Dolomite (DL), metal‐organic frameworks (MOFs), calcined modified dolomite (CDL), zero‐point of charge (PZC), metal‐organic frameworks (MOFs), Fourier transform infrared (FTIR), X‐ray diffraction (XRD), scanning electron microscopy (SEM ...
Yating Yang   +8 more
wiley   +1 more source

MOVE IT TO LEARN IT:  Enhancing multiplication skills of Grade 3 Pupils using manipulatives

open access: yesDavao Research Journal
Multiplication is a necessary skill that is needed to be learned yet, researchers found out that learners performance in this field is declining. With this, our research paper focuses on enhancing multiplication skills of Grade three pupils using ...
Leizl L Abrahan   +2 more
doaj   +1 more source

The monolithic α, β crystal structural design of piezoelectric poly (vinylidene fluoride) (PVDF) polymer/fullerene based sensor array for the measurement of lung pressure

open access: yesSensing and Bio-Sensing Research, 2021
This work reports that of the polyvinylidene fluoride (PVDF)/fullerene based polymer piezoelectric sensory for the detection of pulmonary pressure under blowing conditions.
N. Manikandan   +4 more
doaj   +1 more source

Significance Relations for the Benchmarking of Meta-Heuristic Algorithms

open access: yes, 2013
The experimental analysis of meta-heuristic algorithm performance is usually based on comparing average performance metric values over a set of algorithm instances.
Koeppen, Mario, Ohnishi, Kei
core   +1 more source

Organ‐Specific and Conserved Regulatory Logic Orchestrates Gene Expression in the Embryonic Mesothelium

open access: yesAdvanced Science, EarlyView.
Integrated multi‐omic profiling maps the gene‐regulatory landscape of the coelomic mesothelium across heart, lung, and pancreas. A cardiac‐restricted regulatory program is uncovered in which TBX20 activates heart mesothelial (epicardial) cis‐regulatory elements, while MAF emerges as a conserved regulator of mesothelial identity.
Quang Minh Dang   +3 more
wiley   +1 more source

A time series analysis of Prochilodus nigricans landings caught by small-scale fisheries in the lower stretch of the Amazon River

open access: yesBrazilian Journal of Biology
We developed a time series analysis using data on curimatã (Prochilodus nigricans), which landed in Santarém, a small city located on the right banks of the Amazon River. A 10-year record of monthly average catches per day of P.
IF. Santana, CEC. Freitas
doaj   +1 more source

Corals and Reef‐Dwelling Fish Regulate Carbon Storage and Cycling Processes in Coral Reef Ecosystems

open access: yesAdvanced Science, EarlyView.
Coral reefs are biodiversity hotspots, yet their role in carbon storage and cycling remains poorly understood. Using field surveys and modeling in the South China Sea, we reveal the overlooked potential of carbon storage in reef ecosystems and how reef fish, corals, and surface sediment jointly shape reef carbon reservoirs.
Yiting Chen   +8 more
wiley   +1 more source

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