In this study, the performance of an integrated desiccant air conditioning system (IDACS) driven by solar energy is experimentally tested and predicted by back propagation artificial neural network (BP-ANN). The IDACS is generally includes a liquid desiccant dehumidification cycle combined with a vapor compression refrigeration cycle. The integrated system performance is assessed utilizing the system coefficient of performance (COP), outlet dry air temperature (Tda-out), and specific moisture removal (SMR). The training of the BP-ANN is accomplished utilizing experimental results previously published. The results of the BP-ANN model revealed the high accuracy in predicting system performance parameters compared with experimental values. The BP-ANN model has shown relative errors in the trained mode for COP, Tda-out, and SMR within ±0.005%, ±0.006%, and ±0.05%, respectively. On the other side, the BP-ANN model is inspected in the predictive mode as well. The relative errors of the model for COP, Tda-out, and SMR in the predictive mode are within ±0.006%, ±0.006%, and ±0.004%, respectively. The influences of some selected parameters, namely regeneration temperature, desiccant solution temperature in the condenser and evaporator, and strong solution concentration on the system performance are examined and discussed as well.

Generally speaking, all human beings are able to develop their social and communicative competence. However, we have to reflect on the difficulties, especially on the socio-communicative sphere that those with disease have. Those illnesses which hinder their social and communicative development, and are noticed in their facial expressions and speaking or movement impairment. The purpose of this study is to analyze the communication difficulties of these students in the School context and their socializing and inclusion process. Our research will focus on the process of acquisition of social and communicative competence that these students undergo departing from the “voices” of their teachers (N=50) who teach in early childhood and primary education levels, and that take part in the improvement of their socio-communicative process. The results show the hermeneutical units (Atlas ti 7 program) of the verbal report data about the narrative of teacher and the principal difficulties to communicate to these students: 1. \"Understanding what it said, due to the articulatory problems.\" 2. \"Lack of diversity training of teachers. Guidelines to be followed or aspects that must be taken into account to foster good communication with them.” 3. \"Lack of attention of students.\"

This work is considering possibilities to use solar energy for water heating and facilities on the territory of Autonomous Region Vojvodina (Serbia), with intention to reduce the usage of other conventional energy sources. It is determined that with use of solar systems in households following cost reduction is possible: - 50 to 75% costs if used for heating of sanitary hot water - up to 30% costs as a support to household room heating - 80 to 100% costs in case of swimming pool heating With installation of this system for water heating four person household would save around 2.400 kWh produced by electric power (or from the national grid). Value of this is around 120 EUR annually. Beside this, any increase in the electric power price would influence length of period for return of investment (ROI).

The geographical distribution of river basins with unstable formation of the probability regime of the long-term annual and maximum spring flood runoffs was identified for the Arctic region of Russia. Instability is understood as obtaining unreliable, tending to infinity solutions of the model of initial statistical moments generated by approximating the Fokker–Planck–Kolmogorov equation (FPK). The possibility of using one-dimensional probability distributions to estimate the runoff characteristics of the river basins in the Arctic region is explained.

This work considers the problem of MHD boundary layer flow and heat transfer of power- law fluid over a nonlinearity stretching sheet in the presence of viscous dissipation and thermal radiation with variable fluid properties. The flow is subject to a non-uniform transverse magnetic field and non-uniform heat generation. The governing boundary layer equations are transformed into ordinary differential equations using suitable transformation which are solved numerically using fourth order Rung-Kutta integration scheme coupled with the shooting method. The effects of various parameters on the velocity, temperature, local skin-friction and the local Nusselt number are presented and discussed.