Results 111 to 120 of about 1,815,334 (333)
Subnatural-linewidth biphotons from a Doppler-broadened hot atomic vapor cell
, 2016 We report the efficient generation of subnatural-linewidth (< 6 MHz, for Rb D1/D2 lines) biphotons from a Doppler-broadened (530 MHz) hot atomic vapor cell. We use on-resonance spontaneous four-wave mixing in a hot paraffin-coated 87Rb vapor cell at 63 C
Chen, Peng +6 more
core +1 more source
Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics
Advanced Functional Materials, EarlyView.Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha +18 more
wiley +1 more source
Study of Molecular Interactions in Binary Liquid Mixtures by Acoustical Method at 303K
E-Journal of Chemistry, 2012 Ultrasonic velocity and density measurements were made in two binary liquid mixtures Isopropyl acetate (IPA) and Isobutyl acetate (IBA) with cyclohexanone (CY) as a common component at 303K, at fixed frequency of 2MHz using single crystal variable path ...
P. Paul Divakar, B. V. Rao, K. Samatha
doaj +1 more source
Employment Insecurity: The Decline in Worker-Firm Attachment in the United States [PDF]
Long-term employment relationships have long been an important feature of the labor market in the United States. However, increased international competition and the wave of corporate downsizing in the 1990s raised concerns that long-term employment ...
Henry S. Farber
core
Photo‐Switching Thermal and Lithium‐Ion Conductivity in Azobenzene Polymers
Advanced Functional Materials, EarlyView.Light‐responsive azobenzene polymers control thermal and ionic transport simultaneously through structural transitions. UV illumination disrupts π–π stacking, converting crystalline trans states to amorphous cis configurations. Thermal conductivity drops from 0.45 to 0.15 W·m−1·K−1 while Li+ diffusivity increases 100 fold. This dual transport switching
Jaeuk Sung +7 more
wiley +1 more source
Synthesis and Antimicrobial Activity of Some New Chalcones of 2-Acetyl Pyridine
E-Journal of Chemistry, 2008 Six new chalcones were synthesised by condensing 2-acetyl pyridine with aldehyde derivatives in dilute ethanolic potassium hydroxide solution at room temperature according to Claisen-Schmidt condensation.
Y. Rajendra Prasad +3 more
doaj +1 more source
Resolving the Inner Structure of QSO Discs by Fold Caustic Crossing Events
, 2012 Though the bulk of the observed optical flux from the discs of intermediate-redshift lensed quasars is formed well outside the region of strong relativistic boosting and light-bending, relativistic effects have important influence on microlensing curves.
Abramowitz +75 more
core +1 more source
Advanced Functional Materials, EarlyView.A mechanically tunable hydrogel composed of gelatin, chondroitin sulfate and laminin promotes angiogenesis in vitro without the supplement of growth factors. Endothelial cells morphogenesis was further enhanced by medium conditioned with bioactive glass 58S‐released ions (Ca and Si), thus offering a promising strategy to vascularize 3D tissue ...
Marco Piazzoni +13 more
wiley +1 more source
Derivative Spectrophotometric Estimation of Ondansetron and Paracetamol
E-Journal of Chemistry, 2006 A simple and reproducible spectrophotometric method, requiring no prior separation, has been developed for the estimation of ondansetron and paracetamol in combined dosage form. First order derivative spectroscopy method is adopted to eliminate spectral
P. Ravi Kumar +4 more
doaj +1 more source