Advanced Search Results For "MATHEMATICAL models"

Publication Type: Academic Journal

Source(s): Journal of Financial & Quantitative Analysis. Sep2023, Vol. 58 Issue 6, p2299-2326. 28p.

Abstract: We construct a new numerical measure of earnings announcement surprises, standardized unexpected earnings call text (SUE.txt), that does not explicitly incorporate the reported earnings value. SUE.txt generates a text-based post-earnings-announcement d...

Publication Type: Academic Journal

Source(s): Energies (19961073). Sep2023, Vol. 16 Issue 17, p6313. 28p.

Abstract: The technological process of aluminium electrolysis is a complex scientific and technical task. This is due to a large number of internal, external and resultant factors. The aim of this work is to analyse these factors, assess them and their influence...

Publication Type: Academic Journal

Source(s): Mathematics (2227-7390). 8/15/2023, Vol. 11 Issue 16, p3442. 21p.

Abstract: This article presents a two-grid approach for developing a black-box iterative solver for a large class of real-life problems in continuum mechanics (heat and mass transfer, fluid dynamics, elasticity, electromagnetism, and others). The main requiremen...

Publication Type: Academic Journal

Source(s): Computation. Aug2023, Vol. 11 Issue 8, p159. 13p.

Abstract: The construction of a mathematical model of a complicated system is often associated with the evaluation of inputs' (arguments, factors) influence on the output (response), the identification of important relationships between the variables used, and r...

Publication Type: Academic Journal

Source(s): AIMS Mathematics (2473-6988). 2023, Vol. 8 Issue 10, p24984-24998. 15p.

Abstract: Both the exponential and Lindley distributions can be used to model the lifetime of a system or process, as well as the distribution of waiting times. In this study, we introduce the WLE(θ, λ, α) notation for the weighted Lindley exponential distributi...

Publication Type: Academic Journal

Source(s): AIMS Mathematics (2473-6988). 2023, Vol. 8 Issue 10, p23500-23518. 19p.

Abstract: In this paper, we focus on identifying the transmission rate associated with a COVID-19 mathematical model by using a predefined prevalence function. To do so, we use a Python code to extract the Lagrange interpolation polynomial from real daily data c...

Publication Type: Academic Journal

Source(s): Sensors (14248220). Sep2023, Vol. 23 Issue 17, p7562. 20p.

Abstract: Chipless radio frequency identification (RFID) technology is expected to replace barcode technology due to its ability to read in non-line-of-sight (NLOS) situations, long reading range, and low cost. Currently, there is extensive research being conduc...

Publication Type: Academic Journal

Source(s): Sustainability (2071-1050). Sep2023, Vol. 15 Issue 17, p13122. 21p.

Abstract: Concrete cracks have an adverse effect on the strength properties and durability of concrete structures. Therefore, repairing concrete cracks to recover the concrete's strength parameters is an important task in the civil engineering field. For repairi...

Publication Type: Academic Journal

Source(s): Mathematics (2227-7390). 8/15/2023, Vol. 11 Issue 16, p3575. 10p.

Abstract: This paper describes a mathematical model of an autowave process in a cell with a ferrocolloid. The model is a system of differential coupled equations of the second order and differs from the previously presented model in terms of its original boundar...

Publication Type: Academic Journal

Source(s): Healthcare (2227-9032). Aug2023, Vol. 11 Issue 16, p2362. 23p.

Abstract: Patient value is an important factor in clinical decision making, but conventionally, it is not incorporated in the decision processes. Clinical decision making has some clinical guidelines as a reference. There are very few value-based clinical guidel...