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Insulator Material Deposited with Molybdenum Disulphide Prospective for Sensing Application.
Micromachines (Basel)
November 2024
Nuclear Physics Institute of CAS, v.v.i., Husinec-Řež 130, 250 68 Řež, Czech Republic.
Two-dimensional molybdenum disulfide (MoS) exhibits interesting properties for applications in micro and nano-electronics. The key point for sensing properties of a device is the quality of the material's surface. In this study, MoS layers were deposited on polymers by pulsed laser deposition (PLD).
View Article and Find Full Text PDFTheoretical and Practical Aspects of the Nonlinear Dynamics' Methods of Heart Rate Variability Analyses in Tachyarrhythmia Patients Underwent Radiofrequency Catheter Ablation.
Cardiovasc Eng Technol
January 2025
Department of Biomedical Engineering, Northwestern University, Chicago, IL, USA.
Purpose: This study explores the use of heart rate variability (HRV) analysis, a noninvasive technique for assessing the autonomic nervous system, by applying nonlinear dynamics and chaos theory to detect chaotic behavior in RR intervals and assess cardiovascular health.
Methods: Employing the "System Analysis of Heart Rate Dynamics" (SADR) program, this research combines chaos analysis with the short-time Fourier transform to assess nonlinear dynamic parameters in HRV. It includes constructing phase portraits in Takens space and calculating measures of chaos to identify deterministic chaos indicators.
Norepinephrine Infusion and the Central Venous Waveform in a Porcine Model of Endotoxemic Hypotension with Resuscitation: A Large Animal Study.
J Invest Surg
December 2025
Department of Surgery, University of Minnesota Twin Cities Medical School, Minneapolis, MN, USA.
Background: Venous waveform analysis is an emerging technique to estimate intravascular fluid status by fast Fourier transform deconvolution. Fluid status has been shown proportional to , the amplitude of the fundamental frequency of the waveform's cardiac wave upon deconvolution. Using a porcine model of distributive shock and fluid resuscitation, we sought to determine the influence of norepinephrine on of the central venous waveform.
View Article and Find Full Text PDFExperimental studies on mix design and properties of ceramic-glass geopolymer mortars using response surface methodology.
Sci Rep
January 2025
Copernicus Institute of Sustainable Development, Utrecht University, Utrecht, The Netherlands.
This study explores the mechanical properties of geopolymer mortars incorporating ceramic and glass powders sourced from industrial waste. A Box-Behnken design was employed to assess the effects of ceramic waste powder (CWP) content, alkaline activator ratio, solution-to-binder (S: B) ratio, and oven curing duration on the mortar's performance. Compressive strengths were measured at 3 and 28 days, and regression models were developed to predict these outcomes.
View Article and Find Full Text PDFLaser ablation syntheses of OThS and OCeS and their characterization by rotational spectroscopy.
Phys Chem Chem Phys
January 2025
Purchase College SUNY, School of Natural and Social Sciences, 735 Anderson Hill Rd, Purchase, NY, 10577, USA.
For the first time, rotational constants along with centrifugal distortion constants have been determined for OThS and OCeS. The rotational spectra of these molecules and, in each case, one other isotopologue (OThS and OCeS) were produced utilizing a laser ablation sourcing technique incorporated into a chirped-pulse Fourier transform microwave spectrometer operating in the 8 to 18 GHz region of the electromagnetic spectrum. The bent structures determined are in very good agreement with theoretical calculations.
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