Results 71 to 80 of about 17,343 (304)

β‐Ketonitrile‐Modified Prodan Derivatives as Large‐Stokes‐Shift Solvatochromic Fluorophores With Enhanced Brightness and Ratiometric Thermometric Response

open access: yesChemistry – A European Journal, EarlyView.
We report a systematic study of β‐ketonitrile–modified Prodan‐type solvatochromic fluorophores. The β‐ketonitrile substitution induces marked bathochromic shifts in absorption and emission and significantly enhances fluorescence quantum yields in nonpolar solvents.
Hiroaki Asakawa   +3 more
wiley   +1 more source

Delay Variation Model with RTP Flows Behavior in Accordance with M/D/1 Kendall's Notation

open access: yesAdvances in Electrical and Electronic Engineering, 2010
This paper focuses on the design of a mathematical model of end-to-end delay of a VoIP connection, in particular on a delay variation. It describes all partial delay components and mechanisms, its generation, facilities and its mathematical formulations.
Miroslav Voznak, Michal Halas
doaj  

Reproducibility of Serum Androgen Concentrations by Liquid Chromatography Mass Spectrometry in Healthy Male and Female Athletes

open access: yesDrug Testing and Analysis, EarlyView.
Box and whiskers plots show the distributions of serum testosterone (T), dihydrotestosterone (DHT), androstenedione (A4), and the ratios of T/FDHT and T/A4. ABSTRACT Detection of androgen doping relies on mass spectrometry‐based methods to detect natural endogenous and exogenous androgens in urine and serum. To distinguish exogenous administration from
D. J. Handelsman, S. Bermon
wiley   +1 more source

Elite, transformable haploid inducers in maize

open access: yesCrop Journal
The introduction of alleles into commercial crop breeding pipelines is both time consuming and costly. Two technologies that are disrupting traditional breeding processes are doubled haploid (DH) breeding and genome editing (GE).
Brent Delzer   +24 more
doaj   +1 more source

Return to Play After Multi-Ligament Knee Injuries in National Football League (NFL) Athletes

open access: yesOrthopaedic Journal of Sports Medicine, 2017
Objectives: Return to play (RTP) of NFL athletes following isolated ACL tears has been reported in the literature. However, there have been no studies reporting on RTP of NFL athletes following multi-ligament knee injuries.
Neil K. Bakshi MD   +5 more
doaj   +1 more source

Multi‐factor coupling effects in hydraulic fracturing of laminated shale: Experimental insights and physics‐informed neural network‐driven optimization

open access: yesDeep Underground Science and Engineering, EarlyView.
This study establishes a multi‐factor coupling framework for predicting breakdown pressure in laminated shale by integrating experimental hydraulic fracturing tests, physics‐informed neural networks (PINNs), and Sobol sensitivity analysis. It reveals how differential stress, the bedding dip angle, and the injection rate interact to influence fracture ...
Tao Wang   +6 more
wiley   +1 more source

MVF: A Novel Technique to Reduce the Voip Packet Payload Length

open access: yesTransport and Telecommunication
The adoption of the Voice over Internet Protocol (VoIP) system is growing due to several factors, including its meagre rate and the numerous contours that can be joined with VoIP systems.
Abualhaj Mosleh M.   +3 more
doaj   +1 more source

Lead‐free halide perovskites for efficient light‐emitting devices

open access: yesFlexMat, EarlyView.
Overview of Lead‐free metal halide perovskites with different categories and optoelectronic application directions, including solid‐state lighting, light‐emitting diodes, piezoluminescence, flexible electronics, scintillators and CPL emitters. Abstract Lead halide perovskites exhibit promising optoelectronic properties for optoelectronic applications ...
Yueqi Shen   +9 more
wiley   +1 more source

Research progress in photo‐controlled radical involved luminescence materials

open access: yesFlexMat, EarlyView.
This review systematically dissects radical generation mechanisms, triplet‐exciton photophysics, material design strategies, and cutting‐edge applications in smart encryption, environmental sensing, and 3D printing. Abstract In recent years, photo‐controlled radical room‐temperature phosphorescent (RTP) materials have shown significant application ...
Sichen Meng   +8 more
wiley   +1 more source

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