Results 61 to 70 of about 183,446 (320)

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

open access: yesAdvanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner   +4 more
wiley   +1 more source

Near‐Field Optical Detection of Defect‐Stabilized Metallic Islands at the Verwey Transition in Fe3O4

open access: yesAdvanced Functional Materials, EarlyView.
Nanoscale metallic islands emerging across the Verwey transition in thin films of Fe3O4 are imaged using near‐field optical microscopy from mid‐infrared to terahertz frequencies. Recurring across thermal cycles, these disorder‐stabilized islands exhibit distinct transition temperatures.
Kajal Tiwari   +4 more
wiley   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

Experimental Test of the “Special State” Theory of Quantum Measurement

open access: yesEntropy, 2012
An experimental test of the “special state” theory of quantum measurement is proposed. It should be feasible with present-day laboratory equipment and involves a slightly elaborated Stern–Gerlach setup.
Lawrence S. Schulman
doaj   +1 more source

Clustering property for quantum Markov chains on the comb graph

open access: yesAIMS Mathematics, 2023
Quantum Markov chains (QMCs) on graphs and trees were investigated in connection with many important models arising from quantum statistical mechanics and quantum information.
Abdessatar Souissi   +2 more
doaj   +1 more source

A Complementary Hole‐Transport Layer of PTAA and SAM on FTO Substrate for p‐i‐n Structured Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
The complementary roles of Poly[bis(4‐phenyl)(2,4,6‐trimethylphenyl)amine (PTAA) and self‐assembly monolayer (SAM) in a composite hole transport layer for rough fluorine‐doped tin oxide substrates are demonstrated, with PTAA preferentially depositing in the valleys and SAM occupying the peaks, resulting in improved surface potential uniformity ...
Yihao Wang   +10 more
wiley   +1 more source

Quantum Effects on the Mesoscale

open access: yesParticles, 2020
In different areas of mechanics, highly non-equilibrium processes are accompanied by self-organization of various type turbulent structures and localized inhomogeneities at intermediate scale between macro and micro levels.
Tatiana A. Khantuleva, Victor M. Kats
doaj   +1 more source

Repeated interactions in open quantum systems

open access: yes, 2013
Analyzing the dynamics of open quantum systems has a long history in mathematics and physics. Depending on the system at hand, basic physical phenomena that one would like to explain are, for example, convergence to equilibrium, the dynamics of quantum ...
Bruneau, Laurent   +2 more
core   +3 more sources

Recycling of Thermoplastics with Machine Learning: A Review

open access: yesAdvanced Functional Materials, EarlyView.
This review shows how machine learning is revolutionizing mechanical, chemical, and biological pathways, overcoming traditional challenges and optimizing sorting, efficiency, and quality. It provides a detailed analysis of effective feature engineering strategies and establishes a forward‐looking research agenda for a truly circular thermoplastic ...
Rodrigo Q. Albuquerque   +5 more
wiley   +1 more source

Quantum mechanics concept assessment: Development and validation study

open access: yesPhysical Review Special Topics. Physics Education Research, 2015
As part of an ongoing investigation of students’ learning in first semester upper-division quantum mechanics, we needed a high-quality conceptual assessment instrument for comparing outcomes of different curricular approaches.
Homeyra R. Sadaghiani, Steven J. Pollock
doaj   +1 more source

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