Results 51 to 60 of about 756,769 (307)
Afrique Archéologie Arts, 2020 Since the discovery of the ancient stone sculptures in Sierra Leone and the assignment of ivory works of art in European collections to the ancient Sapi peoples of Sierra Leone, the question has arisen as to the connection between the two. Where were the
Frederick John Lamp
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Advanced 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
The Nazarov Complex of the Lower Don: on Zoroastrianism of the Khazar Ethnos
Вестник Волгоградского государственного университета. Серия 4. История, регионоведение, международные отношения, 2017 Among the early medieval antiquities of the Lower Don basin, two funerary complexes are of interest. One was accidentally discovered in 1914 in the Cossack village Nazarov, and the other – near the settlement Bolshaya Orlovka in 1972.
Leonid S. Ilyukov
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Molecular genetic analysis SARS-CoV-2 of asymptomatic patients in Rostov region
Медицинский вестник Юга России, 2020 Objective: conduct molecular genetics diagnosis of SARS-CoV-2 in asymptomatic individuals in the Rostov region.Material and methods: 22037 individuals who at the time of delivery of the material did not have clinically expressed symptoms of respiratory ...
O. A. Perevesentsev +4 more
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Advanced Functional Materials, EarlyView.This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger +10 more
wiley +1 more source
High Power Solid State Retrofit Lamp Thermal Characterization and Modeling [PDF]
, 2012 Thermal and thermo-mechanical modeling and characterization of solid state lightening (SSL) retrofit LED lamp are presented in this paper. Paramount importance is to design SSL lamps for reliability, in which thermal and thermo-mechanical aspects are key
Formanek, J. +4 more
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Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)
Advanced Functional Materials, EarlyView.Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao +5 more
wiley +1 more source
Advanced Functional Materials, EarlyView.In this strategy, a conductive nano‐probe is employed to induce nanoscale phase transitions and map the nanoscale conductivity and trap density of GST films. By utilizing the contrasting properties of phase‐change states, nano‐resonators are fabricated that exhibit plasmonic conduction and dramatically different transport characteristics.
Sunwoo Bang +4 more
wiley +1 more source
Laser head for simultaneous optical pumping of several dye lasers [PDF]
, 1975 The invention is a laser head for simultaneous pumping several dye lasers with a single flash lamp. The laser head includes primarily a multi-elliptical cylinder cavity with a single flash lamp placed along the common focal axis of the cavity and with ...
Mcalexander, B. T., Mumola, P. B.
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