Application of Modern Technologies in Assessing the Degree of Acquiring the Interlingual Transfer of Temporal Forms (Bulgarian and Spanish Language)

The present study demonstrates the application of modern methods for analysis of acquired knowledge of interlingual transfer at grammatical and semantic level of the temporal systems in indicative mood in modern Bulgarian, English and Spanish. The basic experiment, conducted for the first time in Bulgarian linguistics, consists of two parts and aims to check in a comparative way the degree of acquisition of the temporal categories in English and Spanish by native Bulgarian students. The experiment consists of contrastive examples in declarative affirmative sentences, which illustrate their use. The analysis of the results of the acquired knowledge of transfer from a native to a foreign language is a basis for refining the work of the teacher in the field of grammar.

Acquiring the Interlingual Transfer of Temporal Forms (Bulgarian and English Language)

The present study demonstrates the application of modern methods for analysis of acquired knowledge of interlingual transfer at grammatical and semantic level of the temporal systems in indicative mood in modern Bulgarian, English and Spanish. The basic experiment, conducted for the first time in Bulgarian linguistics, consists of two parts and aims to check in a comparative way the degree of acquisition of the temporal categories in English and Spanish by native Bulgarian students. The experiment consists of contrastive examples in declarative affirmative sentences, which illustrate their use. The analysis of the results of the acquired knowledge of transfer from a native to a foreign language is a basis for refining the work of the teacher in the field of grammar.

A variant of the thermoplasticity theory for monotonic and cyclic processes of nonisothermal loads

We revealed some features and differences in isotropic and anisotropic hardening under monotonic and cyclic loads by analyzing the experimental results of the samples made of 12X18H10T stainless steel under a rigid (controlled) deformation process, which includes a sequence of monotonic and cyclic loading modes under uniaxial tension-compression and different temperature levels. To describe these features with the theory of thermoplasticity, which belongs to the class of flow theories for combined hardening, a memory surface is introduced in the space of the plastic strain tensor components that separates the processes of monotonic and cyclic deformations. The main assumptions and equations of the thermoplasticity theory are formulated. To describe the transition from the monotonic to the cyclic and from the cyclic to the monotonic deformations, the evolutionary equations are formulated for the parameters of isotropic and anisotropic hardening. The basic experiment, which determined the material functions, consists of three stages, such as cyclic loading, monotonic loading and the subsequent cyclic up to destruction. The method of identifying the material functions based on the results of the basic experiment is considered. The material functions that close the thermoplasticity theory at different temperature levels are determined for 12X18H10T stainless steel due to the basic experiment and identification method. We considered the results of the computational and experimental studies of the rigid cyclic deformation under isothermal and non-isothermal loadings up to destruction of 12X18H10T stainless steel. The kinetics of the stress range and the average stress during isothermal and non-isothermal cyclic loadings are analyzed. A reliable compliance of the computational and experimental results is obtained.

Fire Mechanism in Power Connection Points of Outlets and Suggestion of a New Identification Method

Most outlet fires occur around plug pins and plug pin receivers. However, no research has been conducted on ignitions at power connection points. This study confirms the possibility of ignition after incomplete connection, using a stranded wire, to the power connection point of an outlet. The experiment was divided into basic and reproducing experiments. The basic experiment confirmed the possibility of ignition according to the number of wire strands connected to the power connection point, and it identified the characteristics of the residue after the fire. In the reproducing experiment, lamps, vacuum cleaners, and heaters were connected to an outlet to check if the ignition at the connection advanced into a fire. The fire advanced due to the heat and arc generated at the connection point, and partial losses were identified in the U-type holder and clip. Accordingly, the results demonstrate that a fire may occur when the stranded wire is incompletely connected to the outlet. Moreover, it was confirmed that the cause of a fire can be determined based on the characteristics of the residue.