Results 71 to 80 of about 25,885 (240)

Asymmetric Diphosphane Dioxides With A–π–A–π’–D Scaffolds for High‐Purity Deep‐Blue Luminescence

open access: yesChemistry – A European Journal, EarlyView.
Diphosphane dioxide‐based luminophores with donor–π–acceptor– π’–acceptor scaffold enable efficient deep‐blue emission from tunable charge‐transfer states affording high photoluminescence up to 95%. OLEDs reach EQE 4.9%, aided by triplet–triplet annihilation, highlighting a practical route to high‐performance blue emitters.
Eetu Hakkarainen   +10 more
wiley   +1 more source

Théories de l'apprentissage mobile à la lumière de l'étude de la mobilité et de la pensée complexe

open access: yesCanadian Journal for New Scholars in Education, 2015
En 2013, l'utilisation des périphériques informatiques mobiles surpassait celle de l'ordinateur de bureau en ce qui concerne l'accès à Internet par la population mondiale.
Martin Lalonde
doaj  

Fluorogenic Sydnones for Bioorthogonal Labeling of DNA

open access: yesChemistry – A European Journal, EarlyView.
Conjugates of sydnones with cyanine‐styryl dyes combine bioorthogonal reactivity with fluorogenicity. The reactivity with bicyclo[6.1.0]non‐4‐yne (BCN)‐modified DNA showed second‐order rate constants of up to k2 = 2,300 M−1s−1 and fluorescence turn‐on by one magnitude of order.
Kerstin Müller   +1 more
wiley   +1 more source

Vie privée et surveillance ambiante : le droit canadien en chantier

open access: yesDroit et Cultures, 2013
Ambient surveillance technologies are a new ambush set on the path toward conceptualization of privacy rights in Canada. As they impact the underlying rationale for surveillance, these technologies challenge the traditional theoretical approaches to ...
K. Benyekhlef   +2 more
doaj  

Od ne-hudby k hudbě. Hudební využití hluku ve 20. století // From non-music to music. Musical use of noise in the 20th century [PDF]

open access: yesSlovo a Smysl, 2016
The range of sounds available to musicians has grown considerably during the 20th century. The invention of sound recording has made it possible to document any sonic event and to use it in a musical way.
Matěj Kratochvíl
doaj  

Selfie - Technologie

open access: yesPOP. Kultur und Kritik, 2015
Otto, Isabell, Plohr, Nikola
openaire   +1 more source

Influence of Head‐to‐Tail Cyclization of Lanmodulin‐Inspired Peptides on Lanthanide Affinity and Structure

open access: yesChemistry – A European Journal, EarlyView.
The influence of head‐to‐tail cyclization, as well as the effect of ring expansion with an additional glycine on lanmodulin‐inspired peptides on the structure and lanthanide (Ln)‐binding behavior was investigated. While the decrease of structural flexibility can indeed increase the Ln affinity and peptide pre‐organization, it does not lead to an ...
Sophie M. Gutenthaler‐Tietze   +6 more
wiley   +1 more source

Molekulare Solarthermiespeicher—zwei Fallstudien zur Optimierung Molecular solar thermal storage—two case studies on optimization

open access: yesChemie Ingenieur Technik, EarlyView.
Molekulare Solarthermiespeicher (MOST) überführen Licht in Wärmeenergie, die zu einem späteren Zeitpunkt genutzt werden kann. Die Optimierung solcher Systeme wird von vielen Parametern bestimmt, wie hier an zwei Beispielmolekülklassen, Azobenzole und Azaborinine, gezeigt.
Sonja M. Biebl   +2 more
wiley   +1 more source

Reverse Engineering and Performance Evaluation of a Pump Impeller Fabricated With Additive Manufacturing

open access: yesChemie Ingenieur Technik, EarlyView.
This study explores the process chain for reverse engineering and additive manufacturing of a water pump impeller in a process plant. Key aspects include digital twin creation, CAD redesign, material certification, Hirtisation postprocessing, and performance testing. Insights highlight iterative design for improved precision and reliability.
Michael Stadler   +3 more
wiley   +1 more source

Composition of Purified CO2 From Steel Mill Processes—A Classification and Analytical Comparison With Commercial CO2

open access: yesChemie Ingenieur Technik, EarlyView.
Due to the severe catalyst poisoning effect of certain trace components, the purity of CO2 is the main attribute to qualify it as syngas for further downstream processes. This study uses PTR–MS to investigate the trace components of the CO2 produced within the Carbon2Chem project.
Tim Herrendorf   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy