We propose a mathematical model that allows us to determine the temperature field of a parallel-sided electrically conductive plate element subject to uniform non-stationary electromagnetic action. We formulate initial-boundary value problems to determine the parameters of the non-stationary electromagnetic field (NEMF) and the temperature. We develop a methodology to solve these initial-boundary value problems using the approximation of determining functions by cubic polynomials over thickness of the plate element. General solutions for the related Cauchy problems at uniform non-stationary electromagnetic action are obtained. Based on these solutions, the temporal variation of Joule’s heat and temperature in the plate element, subject to short-term induction heating by an NEMF in the mode of impulse modulating signal (MIMS), is analyzed. Temperature dependencies on the different values of electromagnetic field stress and on the different time duration were obtained. The choice of the carrier frequency of electromagnetic field oscillations is explained for the frequencies mostly used in industrial devices for inductive heating.

A mathematical model for determining the temperature field of a bimetallic plate with plane-parallel boundaries during short-term induction heating by a non-stationary electromagnetic field is proposed. Initial boundary value problems for determining the parameters of a non-stationary electromagnetic field and temperature are formulated. The temperature and the component of the magnetic field intensity vector that is tangential to the plate base were selected as defining functions. We used an approximation of the defining functions in each layer of the plate with quadratic polynomials by the thickness coordinate and Laplace transform of the integral over time. General solutions to the formulated problems under uniform non-stationary electromagnetic action were obtained. Based on them, the temperature during short-term induction heating by a non-stationary electromagnetic field was numerically analyzed depending on its amplitude-frequency parameters and duration.

Although companies recognize and promote the benefits of a diverse corporate culture, persons with disabilities (PWD), are more likely to be unemployed. Using secondary sources of information, this paper examines the need to address the employment of PWD as part of a Corporate Social Responsibility (CSR) strategy, highlighting various implementation measures and variants. It shows that the employment of PWD can only be promoted by companies themselves. Measures at the national and international levels have so far shown little success. For a successful implementation, an obligation in the CSR strategy is not enough, measures need to be described explicitly. At its core, it is always necessary to remove physical and mental barriers in the company in order to enable the employment of PWD. The adaptation of CSR initiatives concerning the employment of PWD should be further investigated. The research should particularly focus on “best practice” approaches from business practice.

Background: Price setting is a determinant of a company's profitability especially in the sector of creative industry (CI) and is intensively discussed in academic and business area. Purpose: The aim of this research paper is to investigate whether a well-defined and successfully implemented pricing strategy can significantly affect the profitability of companies in the creative industry. Study design/methodology/approach: This study investigates the differences in interval variables, including financial indicators, number of price management techniques, and price management metrics, between companies that have implemented pricing strategies and those that have not. To assess this, a two-sample t-test was used to compare the variables between the two groups. Since the creative industry is highly heterogeneous, we have analyzed the profitability of creative sub-industries more in detail through ANOVA test. Findings/conclusions: As it turned out, the analyzed parameters do not differ significantly in their average values, except for the parameter "Gross margin", where a statistically significant difference in average values was confirmed. Based on the findings of studies conducted by other authors as well as our own analyses, we conclude that assessing CI's profitability relative to other industries is inappropriate and represents only a simplistic view of the industry's performance. It is important to observe the profitability in each subindustry of CI, because the nature of the product (output) is different in each segment of this industry. Limitations/future research: Despite the initial findings, it was recognized that the research was limited to a single country and a specific industry. To gain further insight into the pricing and profitability of companies in the creative sub-industries and cultural industry, subsequent research should be conducted. It would also be useful to link the topic of pricing and profitability with the theme of revenue models including pricing models, pricing metrics and payment systems.