We use multifractal detrended fluctuation analysis (MF-DFA), to study sunspot number fluctuations. The result of the MF-DFA shows that there are three crossover timescales in function. discuss how existence is related a sinusoidal trend. Using Fourier analysis, trend eliminated. Hurst exponent time series without 0.12 ± 0.01. Also we find these fluctuations have nature. Comparing results for remaining data set those shuffled and surrogate series, conclude its nature almost entirely due long...

Several chemo-drugs act as the biocompatible fluorophores. Here, laser induced fluorescence (LIF) properties of doxorubicin, paclitaxel and bleomycin are investigated. The absorption lines mostly lie over UV range according to UV-VIS spectra. Therefore, a single XeCl provokes desired transitions interest at 308 nm. It is shown that LIF spectra strongly dependent on fluorophore concentration giving rise sensible red shift. This happens when large overlapping area appears between emission...

Abstract Solid‐state battery research has gained significant attention due to their inherent safety and high energy density. Silicon anodes have been promoted for advantageous characteristics, including volumetric capacity, low lithiation potential, theoretical specific gravimetric the absence of lethal dendritic growth. Addressing concerns such as conductivity, pulverization, fracture, dense solid electrolyte interface layer, coulombic efficiency substantially improved use silicon...

We introduce a directionality index for time series based on comparison of neighboring values. It can distinguish unidirectional from bidirectional coupling, as well reveal and quantify asymmetry in coupling. is tested numerical model coupled van der Pol oscillators, applied to cardiorespiratory data healthy subjects. There no need preprocessing fine-tuning the parameters, which makes method very simple, computationally fast robust.

We investigate Markov property of rough surfaces. Using stochastic analysis we characterize the complexity surface roughness by means a Fokker-Planck or Langevin equation. The obtained equation enables us to regenerate surfaces with similar statistical properties compared observed morphology atomic force microscopy.

Laser induced breakdown spectroscopy and subsequent acoustic response during microplasma formation are employed to identify cancerous human breast tissues. The characteristic optical emissions Ca, Na, Mg rich species in tissues compared those of healthy ones. Furthermore, we show that the parameters microplasma, generated on unhealthy tissues, elevated. We report higher decibel audio signals emanating from laser a blueshift for malignant abundance trace elements as well plasma temperature...

In this paper, new photonic crystal optical filters with very unique characteristics are presented. The designed structures composed of stacked SiO2 isotropic dielectric slabs separated by monolayer graphene sheets. Defect layers nonlinear electro-optical polymer materials also inserted to behave as the resonant areas. Results obtained using transfer matrix method approach clearly reflect possibility wide band gap generation in absorption spectra proposed crystals terahertz frequency range....

In the field of medical technology, specialized equipment utilizes tubular metastructures with a negative Poisson's ratio in vascular stents to reduce risk embolism. The deliberate incorporation auxetic structures into stent design offers several benefits over traditional stents. This study examines nonlinear instability and bending responses reentrant perfect imperfect 3D-printed metastructures. First, governing equations for tube geometric imperfections under transverse axial mechanical...

Purpose Auxetic tubular structures with negative Poisson’s ratios have gained significant attention in biomedical applications, particularly vascular and esophageal stents, due to their potential reduce embolism risks. This study aims investigate the nonlinear vibration characteristics of such develop accurate predictive models using machine learning (ML) techniques. Design/methodology/approach The governing equations auxetic tubes are derived Hamilton’s principle von-Kármán’s assumptions,...

We describe a general method for analyzing nonstationary stochastic process X(t) which, unlike many of the previous analysis methods, does not require to have any scaling feature. The is used study fluctuations in daily price oil. It shown that returns time series, y(t)=ln[X(t+1)X(t)] , stationary and Markov process, characterized by scale t_{M} . coefficients Kramers-Moyal expansion probability density function P(y,tmid R:y_{0},t_{0}) are computed. R:,y_{0},t_{0}) satisfies Fokker-Planck...

Concerns over recyclability, performance, and safety have grown as the use of commercial Li-ion batteries to meet our energy needs has increased. Electrolytes may aid in increased flammability, capacity loss, safety. Dimethyl methyl phosphonate (DMMP), a flame retardant, dopamine hydrochloride (DOP) are utilized increase cycle life graphite anode compatibility. The optimal additive formulation (5% wt DMMP 0.1% DOP) reduces inflammability increases reversible (99.14%). Molecular dynamics...

We employ laser induced fluorescence (LIF) spectroscopy to discriminate between normal and cancerous human breast (in-vitro) tissues. LIF signals are usually enhanced by the exogenous agents such as Rhodamine 6G (Rd6G) Coumarin 7 (C7). Although we observe emissions in both fluorophores, Rd6G-stained tissues give notable spectral red shift practice. The latter is a function of dye concentration embedded find that shifts have strong dependence on bare, stained healthy, malignant tissues,...

Here, the authors have utilized laser induced breakdown spectroscopy (LIBS) to distinguish cancerous tissues from normal ones. For this purpose, plasma emission spectra of and taken four different organs interest, i.e, breast, colon, larynx, tongue are analyzed via excitation a pulsed Neodymium-doped Yttrium Aluminum Garnet (ND: YAG) at 1064 nm. Results show that abundance trace elements such as Ca, Mg, Na elevated in with respect In addition, inductively coupled plasma-optical...

We investigate the statistical anisotropy and Gaussianity of temperature fluctuations Cosmic Microwave Background radiation (CMB) data from {\it Wilkinson Anisotropy Probe} survey, using multifractal detrended fluctuation analysis, rescaled range scaled windowed variance methods. The analysis shows that CMB has a long correlation function with behavior. By comparing shuffled surrogate series data, we conclude multifractality nature is mainly due to long-range correlations map consistent...

The fluorescence nature of chemo-drugs is useful for simultaneous cancer diagnosis and therapy. Here, the laser induced (LIF) properties irinotecan, gemcitabine navelbine are extensively investigated. UV photons provoke desired transitions several by virtue XeCl at 308 nm. It shown that LIF spectra strongly dependent on fluorophore concentration, while no spectral shift measured because a large Stokes shift. On other hand, doxorubicin characterized overlapping between absorption emission...