Results 111 to 120 of about 8,020,576 (226)

FORWARD MODELLING OF LONG-WAVELENGTH MAGNETIC ANOMALIES FROM THE UPPER MANTLE

open access: yes, 2017
Long-wavelength magnetic anomalies (LWMA) are broad scale magnetic fields that are usually observed at satellite altitudes. The origin of these fields have been assumed to be solely from the crust, disregarding possible contributions from the upper ...
Idoko, Chijioke Modestus
core   +1 more source

Biosensors for Food Safety and Adulteration Monitoring: Applications, Smart Packaging Integration, and Pathways to Intelligent, Field‐Deployable Detection Systems

open access: yesFood Safety and Health, EarlyView.
Biosensors enable rapid, sensitive, and portable detection of pathogens, contaminants, allergens, and food adulteration. Integration with smart packaging, smartphones, IoT, and machine learning supports real‐time monitoring and intelligent decision‐making, whereas microfluidics, biodegradable materials, explainable AI, and blockchain offer pathways ...
Mohima Akther Any   +7 more
wiley   +1 more source

Geochemistry and Geochronology of Magmatic Rocks in Southwestern and Northeastern Cambodia: Implications for the Tectonic Evolution and Metallogenesis of the Loei Fold Belt

open access: yesGeological Journal, EarlyView.
The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang   +6 more
wiley   +1 more source

Drive‐Efficient GHz‐Rate Binary‐State Updates Enabled by VCSEL Polarization Switching

open access: yesLaser &Photonics Reviews, EarlyView.
Photonic computing needs a compact node that can hold a binary state and update it fast. A vertical‐cavity surface‐emitting laser biased at its polarization‐switching point could serve as one: its two orthogonal linear polarizations are the two states, and a small electrical drive is enough to move the output from one state to the other at gigahertz ...
Zifeng Yuan   +6 more
wiley   +1 more source

design and development of a vibrating sample magnetometer for high magnetic field measurements of superconductors [PDF]

open access: yes, 1994
A Vibrating Sample Magnetometer (VSM) has been designed, constructed and developed. The design specification was for a VSM to work in magnetic fields up to 15T, and provide a variable temperature environment for the sample from 4.2K to 130K.
Luscombe, Robert
core  

Machine learning‐driven advances in carbon‐based quantum dots: Opportunities accompanied by challenges

open access: yesResponsive Materials, EarlyView.
Machine learning provides a unifying framework to connect structure, fluorescence properties, and applications of carbon‐based quantum dots. This review highlights how data‐driven strategies enable fluorescence regulation, reveal underlying mechanisms, and accelerate the rational design of functional carbon dots.
Liangfeng Chen   +8 more
wiley   +1 more source

A preliminary, full spectrum, magnetic anomaly grid of the United States with improved long wavelengths for studying continental dynamics: A website for distribution of data [PDF]

open access: yesOpen-File Report, 2009
D. Ravat   +10 more
openaire   +1 more source

Carbon dots in electrochemiluminescence: Mechanisms, interface engineering, and bioanalytical applications

open access: yesResponsive Materials, EarlyView.
Carbon dots are emerging as versatile electrochemiluminescent nanomaterials whose structure, surface states, and interfacial design jointly determine ECL pathways and performance. This review highlights how mechanistic understanding and materials engineering enable programmable CD‐ECL systems for bioanalysis, imaging, and future intelligent analytical ...
Yuhan Zhao, Zixuan Chen, Jun‐Jie Zhu
wiley   +1 more source

Reasoning Together or Clicking Through? Analyzing Patterns of Group Science Talk On and Off Individualized Computers

open access: yesScience Education, EarlyView.
ABSTRACT In this article, I examine group science talk within the classrooms of three urban secondary science teachers who regularly use one‐to‐one computers to mediate their NGSS‐aligned science instruction. I combine methods of framing analysis (Goffman 1974; Tannen 1993) and interaction analysis (Jordan and Henderson 1995) to illustrate differences ...
Tess Bernhard
wiley   +1 more source

Enhancing Coherence Length in Tailored Chiral Hybrid Polymer‐Wrapped Single‐Walled Carbon Nanotube Superstructures

open access: yesSmall, EarlyView.
Conductance measurements demonstrate a fivefold enhancement in phase coherence length in a specially designed chiral polymer‐wrapped metallic single‐walled carbon nanotube (m‐SWNT) superstructure, relative to the corresponding achiral m‐SWNT benchmark.
Hanna T. Fridman   +9 more
wiley   +1 more source

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