Results 171 to 180 of about 151,013 (284)

Effect of Reaction Time and Temperature on the Impurity Profile of Amphetamine in the Leuckart Method

Drug Testing and Analysis, EarlyView.
This study investigates the effect of the reaction temperature (step 1) and reaction time (step 1 and 2) on the conversion efficiency and impurity profile of amphetamine synthesized via the Leuckart method. Conversion efficiency and impurity profile were assessed using gas chromatography–flame ionization detection (GC–FID) and GC–mass spectrometry (GC ...
Maartje C. M. Verhoeven, Robert C. Huls, Nelly W. van der Stelt, Jelle C. de Koning, Marco van Grol, Ruben F. Kranenburg, Arian C. van Asten, Janneke W. Hulshof   +7 more
wiley   +1 more source

Positive Feedback Organic-on-Silicon Upconversion Devices. [PDF]

Adv Sci (Weinh)
Lampande R, DesOrmeaux JP, Pizano A, Guler U, Hamer JW, Giebink NC.   +5 more
europepmc   +1 more source

An Ultra‐Low‐Power and High‐Temperature‐Homogeneity Wafer‐Scale Infrared Source

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A wafer‐scale MEMS infrared source with an Al@nanoforest radiation layer achieves high emissivity and temperature homogeneity at low power, enabling efficient CO2 detection for smart agriculture. Non‐dispersive infrared gas sensors, renowned for their high selectivity and high reliability, are extensively employed in applications of smart agriculture ...
Qirui Zhang, Shuxin Chen, Meng Shi, Xin Liu, Hanhui Li, Ruitao Tao, Yu Liu, Na Zhou, Wenwu Li, Haiyang Mao   +9 more
wiley   +1 more source

Wide-Dynamic-Range Lead-Free SWIR Image Sensors Based on InAs Thin-Film Quantum-Dot Photodiodes ^†. [PDF]

Sensors (Basel)
Chu M, Song W, Kim JH, Weydts T, Pejovic V, Lee J, Jin M, Lee SY, Seo Y, Yoo H, Bentell J, Siddik AB, Monroy IP, Vildanova M, Zaman AU, Yoo TJ, Malainou A, Hussein W, Spagnolo A, Karve G, Lieberman I, Guerrieri S, Malinowski PE.   +22 more
europepmc   +1 more source

Stereo‐EEG mapping of visual working memory with task‐related high‐gamma modulations

Epilepsia, EarlyView.
Abstract Objective We describe a safe, informative, and easy‐to‐implement approach for presurgical mapping of visual working memory (VWM) with stereo‐electroencephalography (SEEG). Methods Twenty‐four patients with drug‐resistant epilepsy, 11–23 years of age, performed a single‐probe change detection VWM task, during SEEG monitoring.
Brian Ervin, Jason Buroker, Taylor Cummins, Anna W. Byars, Craig Scholle, Leonid Rozhkov, Paul S. Horn, Jeffrey R. Tenney, Hansel M. Greiner, James L. Leach, Jesse Skoch, Francesco T. Mangano, Katherine D. Holland, Ravindra Arya   +13 more
wiley   +1 more source

Solvothermal Synthesis of Multicolor-Emitting Carbon Quantum Dots for White Light and Optoelectronic Applications. [PDF]

ACS Omega
Reivanth K, Sangeetha A, Palanivel M, Muthuvelan V, Nataraj D.   +4 more
europepmc   +1 more source

Design of a Hydroelectronic Solar‐Tracking System for Solar Panels

Energy Science &Engineering, EarlyView.
A prototype of a passive solar‐tracking system utilizing buoyant force based on water level was developed, and its MATLAB/Simulink model was implemented. This study is expected to encourage researchers to design solar‐tracking mechanisms using metals with different thermal expansion coefficients, air, oil, and other fluids. ABSTRACT This study presents
Ufuk Süğürtin, Türker Fedai Çavuş
wiley   +1 more source

Range quality assurance measurements for clinical and FLASH proton beam therapy using the quality assurance range calorimeter. [PDF]

Front Oncol
Shaikh S, Escribano-Rodriguez S, Radogna R, Saakyan R, Manger S, Henthorn N, Warmenhoven JW, Taylor M, Jolly S.   +8 more
europepmc   +1 more source

Experimental Investigation of Burning Liquids in Reduced Oxygen

Fire and Materials, EarlyView.
ABSTRACT The effects of oxygen concentration on combustion of gases have been investigated on fundamental levels in several studies. However, the same type of fundamental studies has not been made for liquid or solid fuels due to complex relationships between flame structure and changing mass loss rates (MLR).
Joakim Åström, Patrick van Hees, Marcus Runefors, Nils Johansson   +3 more
wiley   +1 more source

Transparent UVA photodetectors based on oxide semiconductors for real-time wearable skin protection monitoring. [PDF]

Sci Adv
Kim YB, Ha HJ, Yun JM, Choi MJ, Han K, Kim S, Park S, Park M, Oh H, Yoo JY, Kang SJ.   +10 more
europepmc   +1 more source