Thermodynamic data on environmental refrigerants have attracted considerable interest in the optimization and design of heat compressors, exchangers and other refrigeration equipment. In this study, An optimization algorithm was used to obtain the constant parameters of the new empirical model by fitting them to the source databank. The model was used to calculate the constant coefficients of t...

in this research, papaya slices with dimensions of 0.5×2×5 cm3 were dried at 45 °c using a cabinet dryer in which drying air velocity and relative humidity were 0.9 m/s and 30%, respectively. the moisture diffusion coefficient of papaya was determined in this drying condition. mass transfer equation with its boundary conditions was solved based on finite difference method. finally, coefficient ...

This paper presents a new mathematical relationship for representing the stress-strain behavior of structural steel at elevated temperatures. The relationship is constructed by fitting two versatile, continuous equations to experimental data. The first equation, a general stress-strain equation previously proposed by Poh, is used for characterizing the stress-strain data. The second equation is...

Abstract The elliptic equation intelligent question answering system based on the is an device that combines natural language and data retrieval technology. Knowledge domains used for different purposes are divided into open restricted domains. In order to simplify existing knowledge of English intelligence answer algebra reduce efficiency questionnaire, a similar algorithm designed implemented...

Emerging technology enterprises entrepreneurial ability is a very complex, multidimensional fuzzy concepts, in this paper, definition of entrepreneurship is to point to the self-efficacy which makes successful completion of various tasks and undertakes a variety of roles in the process of entrepreneurship. Existing research only focus on a particular aspect of entrepreneurship, look from the en...