Results 81 to 90 of about 3,514 (240)

Point-top Shaped Photonic Crystal Fiber for Enhanced Surface Plasmon Resonance Biosensing

Journal of Optoelectronical Nanostructures
A point-top photonic crystal fiber (PCF)–based surface plasmon resonance (SPR) biosensor with a continuous gold coating is theoretically proposed and analyzed using the finite-element method.
Alireza Abdikian, Mariyam Torkashvand, Masoud Rezvani Jalal   +2 more
doaj  

Qualitative Analysis of Biogas by Raman Spectroscopy: Effect of Pressure on Major Components

Journal of Raman Spectroscopy, EarlyView.
Raman spectra of major and selected minor biogas components were studied under pressures up to 100 bar. Pressure‐induced shifts and band broadening were quantified for methane, carbon dioxide, and nitrogen, while Raman spectra of ammonia and hydrogen sulfide are presented in the context of biogas quality monitoring.
Dominik Tománek, Matouš Kuneš, Tomáš Hlinčík   +2 more
wiley   +1 more source

Validated, Reliable, and Novel Skin Frailty Scale for Outpatient Usage and Its Association With Age, Sex, and Non‐Melanoma Skin Cancer: An Observational Study

JEADV Clinical Practice, EarlyView.
Skin frailty (SF) is a common condition affecting adults aged ≥65 years. However, the lack of a validated and reliable visual scale to assess SF severity is a barrier to clinical care and research. In this study, we developed a 9‐parameter Skin Frailty Score (SFS), validated by two board‐certified dermatologists and meeting item and scale level content
Po‐Han Ho, Farah Abou‐Taleb, Shufeng Li, Kiana Yekrang, Vijaytha Muralidharan, Pirunthan Pathmarajah, Sophia Katherine Longo, Zakia Rahman, Albert Sean Chiou, Anne Lynn S. Chang   +9 more
wiley   +1 more source

Biological Salt‐Pump Effect: Long‐Term Stand Development of Haloxylon ammodendron and Its Role in Reshaping Soil Hydrothermal and Salinity Regimes

Land Degradation &Development, EarlyView.
ABSTRACT Afforestation in the desert–oasis ecotone induces soil desiccation and secondary salinization. However, the seasonal dynamics of soil water–heat–salt interactions across plantations of different stand ages in arid regions remain unclear. Here, we investigated the seasonal patterns and coupled relationships of soil water–heat–salt dynamics in ...
Wang Yanxin, Wang Guohua, Jia Angyuan, Gou Qianqian   +3 more
wiley   +1 more source

Three‐Dimensional Optical Characterization of Magnetostrictive Deformation in Magnomechanical Systems

Laser &Photonics Reviews, EarlyView.
An optical approach is proposed for real‐time and high‐precision detection of the magnetostrictive deformation of an yttrium‐iron‐garnet sphere in three dimensions, based on the deformation induced spatial high‐order modes of the scattered field, postselection, and balanced homodyne detection.
Xiaomin Liu, Jing Zhang, Jie Li, Rongguo Yang, Jiangrui Gao, Tiancai Zhang   +5 more
wiley   +1 more source

Controlling the Center of Mass Motion of Levitated Particles Using Structured Wavefronts

Laser &Photonics Reviews, EarlyView.
Optically levitated particles have great potential for quantum‐enhanced sensing. Precise control of the trapping beam is crucial to improve the stability and confinement of these systems. Here, we study how structured wavefronts can be used to control the center‐of‐mass motion of levitated particles, enhancing trap stiffness and enabling stable ...
Shah Jee Rahman, Quimey Pears Stefano, Angel Cifuentes, Jason Francis, Iker Gómez‐Viloria, Ruben Pellicer‐Guridi, Miguel Varga, Gabriel Molina‐Terriza   +7 more
wiley   +1 more source

A Static Phantom for Harmonization of Hyperpolarized [1–13C]Pyruvate Metabolic Magnetic Resonance Imaging

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop and characterize a static, reusable 13C phantom designed to assess and support the harmonization of MRI setups used for hyperpolarized (HP) [1‐13C]pyruvate imaging. Methods The phantom was designed as a 200‐mm‐diameter polycarbonate sphere filled with 8M natural abundance urea and incorporating distinct modules for assessing
Kristina P. Jacobsen, Ingeborg S. Skre, Rie B. Olin, Mathilde H. Lerche   +3 more
wiley   +1 more source

Multi‐Contrast Human Brain CEST MRI at 11.7 T: First In Vivo Demonstration

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT PurposeTo implement and evaluate chemical exchange saturation transfer (CEST) at ultra‐high field on a whole‐body 11.7 T scanner using parallel transmission (pTx). MethodsTailored pTx CEST saturation pulses were optimized to achieve a spatially uniform target B1+ while satisfying SAR and power constraints either defined by conservatively ...
Camélia Ressam, Joseph Brégeat, Alfredo L. Lopez Kolkovsky, Alexis Amadon, Alexandre Vignaud, Aurélien Massire, Son Chu, Shajan Gunamony, Nicolas Boulant, Vincent Gras, Franck Mauconduit, Luisa Ciobanu   +11 more
wiley   +1 more source

Ultrasound‐Assisted Epoxy Resin Curing Monitored by Impedance Spectroscopy

Polymer Engineering &Science, EarlyView.
Ultrasound enhances epoxy cure rates via localized heating without altering cure kinetics. Impedance spectroscopy provides a direct, non‐destructive measure of cure progression, enabling accurate mapping of degree of cure in real time. ABSTRACT Epoxy resins are widely used in aerospace and automotive manufacturing as structural adhesives and matrices ...
Daniel Csehngeri, Anoush Poursartip, Edmond Cretu   +2 more
wiley   +1 more source

K-polar polynomials [PDF]

Pacific Journal of Mathematics, 1962
openaire   +2 more sources