Mathematics, Statistics & Physics: Recent submissions
Now showing items 561-580 of 738
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On the existence of positive solutions for generalized fractional boundary value problems
( Springer , 2019 , Article)The existence of positive solutions is established for boundary value problems defined within generalized Riemann–Liouville and Caputo fractional operators. Our approach is based on utilizing the technique of fixed point ... -
A best proximity point theorem for special generalized proximal ?-quasi contractive mappings
( Springer , 2019 , Article)In this paper, we obtain some best proximity point results for a new class of non-self mappings T: A? B called special generalized proximal ?-quasi contractive. Our result is illustrated by an example. Several consequences ... -
Electron-impact ionization of W5+
( American Physical Society , 2019 , Article)Electron-impact single-ionization cross sections for the W5+ ion have been studied experimentally and theoretically. Measurements of a detailed ionization spectrum and of absolute cross sections were performed employing ... -
Application of garch model to forecast data and volatility of share price of energy (Study on adaro energy Tbk, LQ45)
( Econjournals , 2018 , Article)Most of the times, Economic and Financial data not only become highly volatile but also show heterogeneous variances (heteroscedasticity). The common method of the Box Jenkins cannot be used for data modeling as the method ... -
Network Analysis of MERS Coronavirus within Households, Communities, and Hospitals to Identify Most Centralized and Super-Spreading in the Arabian Peninsula, 2012 to 2016
( Hindawi Limited , 2018 , Article)Contact history is crucial during an infectious disease outbreak and vital when seeking to understand and predict the spread of infectious diseases in human populations. The transmission connectivity networks of people ... -
Numerical conformal mapping onto the entire complex plane bounded with finite straight slit and logarithmic spiral slits
( Institute of Physics Publishing , 2019 , Conference Paper)This paper presents a fast boundary integral equation method with for computing conformal mappings of multiply connected regions. We consider the canonical region consists of the entire complex plane bounded by a finite ... -
Monitoring Coefficient of Variation Using Progressive Mean Technique
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)Control charts are mostly used for the monitoring of process mean and dispersion. In cases, when the process standard deviation is proportional to the mean, it is recommended to use control charts based on coefficient of ... -
Numerical conformal mapping onto the exterior unit disk with a straight slit and logarithmic spiral slits
( Institute of Physics Publishing , 2019 , Conference Paper)This paper presents a fast boundary integral equation method for numerical conformal mapping of unbounded multiply connected regions onto a disk with an infinite straight slit and finite logarithmic spiral slits. Some ... -
Investigation of optical and electrical properties of Cobalt-doped Ge-Sb-S thin film
( Elsevier B.V. , 2019 , Article)Amorphous Germanium Antimony Sulphide (Ge-Sb-S) doped with Cobalt (Co) have been deposited on glass substrates by thermal evaporation technique on a glass substrate. The films deposited onto glass substrates are characterized ... -
Enhancing the performance of the EWMA control chart for monitoring the process mean using auxiliary information
( John Wiley and Sons Ltd , 2019 , Article)When using control charts to monitor manufacturing processes, the exponentially weighted moving average (EWMA) control chart is useful for detecting persistent shifts in the process parameter. This paper proposes enhancements ... -
Invariant characterization of scalar third-order ODEs that admit the maximal point symmetry Lie algebra
( John Wiley and Sons Ltd , 2018 , Article)The Cartan equivalence method is used to deduce an invariant characterization of the scalar third-order ordinary differential equation u"' = f(x, u, u', u"), which admits the maximal 7-dimensional point symmetry Lie algebra. ... -
A note on the Ramsey numbers for theta graphs versus the wheel of order 5
( Kalasalingam University , 2018 , Article)The study of exact values and bounds on the Ramsey numbers of graphs forms an important family of problems in the extremal graph theory. For a set of graphs S and a graph F, the Ramsey number R(S,F) is the smallest positive ... -
Association between Soft Drink Consumption and Aggressive Behaviour among a Quarter Million Adolescents from 64 Countries Based on the Global School-Based Student Health Survey (GSHS)
( MDPI , 2020 , Article)Soft drink consumption has become a significant public health concern that is associated with various adverse health outcomes.We aim to examine the association between soft drink consumption and aggressive behavior among ... -
Doped conductive polymers and single-walled carbon nanotubes as charge storage devices
( Institute of Physics Publishing , 2018 , Article)Single-walled carbon nanotubes (SWCNTs), introduced as nano-fillers, were used as charge storage elements. Organic semiconducting polymers were produced by doping organic plasticizers with nonconductive polymers. The ... -
Statistical estimate of radon concentration from passive and active detectors in Doha
( MDPI AG , 2018 , Article)Harnessing knowledge on the physical and natural conditions that affect our health, general livelihood and sustainability has long been at the core of scientific research. Health risks of ionising radiation from exposure ... -
A comparative study of chemically reacting 2D flow of Casson and Maxwell fluids
( Elsevier B.V. , 2018 , Article)Theoretical investigation is performed to discuss the heat and mass transfer behavior of chemically reacting magnetohydrodynamic Casson and Maxwell fluids past a stretching sheet with Brownian moment and thermophoresis ... -
A one-step implicit iterative method for two finite families of asymptotically nonexpansive mappings in a hyperbolic space
( Springer Verlag , 2018 , Article)We introduce a one-step implicit iterative method for two finite families of asymptotically nonexpansive mappings in a hyperbolic space and use it to approximate common fixed points of these families. The results presented ... -
Morphology and property changes in PLA/PHBV blends as function of blend composition
( Springer Netherlands , 2018 , Article)PLA/PHBV blends were prepared by melt mixing. The morphology and physical properties of the blends and neat polymers were investigated. Scanning electron microscopy (SEM) studies provided evidence of interfacial cavities ... -
Hepatitis C virus infection spontaneous clearance: Has it been underestimated?
( Elsevier B.V. , 2018 , Article)Objectives: Hepatitis C virus (HCV) clearance rate (fclearance) is defined as the proportion of infected persons who will spontaneously clear their infection after acute infection. We aimed to estimate fclearance using a ... -
Approximating the tail probabilities of the longest run in a sequence of Bernoulli trials
( Taylor and Francis Ltd. , 2018 , Article)We consider the longest run of either successes or failures in a sequence of (Formula presented.) Bernoulli trials. The exact distribution of this random variable is obtained using probability generating function techniques. ...
