Multiplying both sides of (B2) by exp(t/rH) we obtain , ' exp(t/rH) + Q/TH) exp(t/rH) = f (t) exp... more Multiplying both sides of (B2) by exp(t/rH) we obtain , ' exp(t/rH) + Q/TH) exp(t/rH) = f (t) exp(t/TH) We can use the identity d(xy)/dr = i y + x, ' which gives d b exp(t/rH))/dt eXP(f/TH) which can then be integrated to determine the concentration y = [H(t)] at a given time t = 1' : I' f(t) exp(t/rH) dr + c Y exp(t/TH)If=V = y(t3 = eXp(-f'/TH) x'hf) e X p (t / r~) dt + c (B3) At t = 0 the value of the integral is zero, leaving y(t? = C. The boundary condition y(t? = 0 exists which implies that C = 0. The rate of product formation may be written Assuming [DCI] remains constant over time we have k[DCI] = k', and (B4) may then be written in a form analogous to (B2): 2 + z/7H k'y(f) and solved to give a t the time of detection, t = td: Z(fd) = eXp(-fd/Tp)xfdk'y(t') eXp(f'/rp) dt' Substituting in (B3) we obtain an expression for the product concentration a t time tdr [P(td)] = Z(td): Z(td) = exp(:) L f d k t exp(2) x. . [ x ' n t) exp(i) dt ] exp(5) dt' (B5) The integral in (B3) can be approximated by %ti) exp(ti/TH)h i=O which when substituted into eq B3 gives m i=o W (t m) I = exp(-tm/TH)x.Lf(fi) exP(ti/r~)hl (B6) where h is the width of the interval used in the summation. In this study the summation was performed using 0.5-ns increments. Similarly, the integral in (BS) can be approximated by to give where [P(t,)] can be either [D(t)ld or [Cl(t)]d and T~ is either T D or TCI.
The sport education model (SEM) has been suggested to have a positive impact on students’ motivat... more The sport education model (SEM) has been suggested to have a positive impact on students’ motivational processes within the physical education setting. However, there is no evidence about how this methodology can affect such processes in the unconventional scenario provoked by the COVID-19 pandemic. The aim of the present study was to analyze the effect of a SEM-based teaching intervention on students’ basic psychological needs (BPN), intrinsic motivation, and behavioral engagement in physical education. For this purpose, a quasi-experimental study was carried out in which two groups of secondary students (Mage= 14.61, SD= 0.5) were taught a basketball unit following either the SEM or traditional teaching. Previously validated questionnaires were administered both before and after the intervention. The results showed that students following the SEM methodology significantly improved their autonomy satisfaction (MPre = 3.09 vs. Mpost = 3.63), competence satisfaction (Mpre = 3.48 vs. ...
This paper presents the latest research and developments in Modular Technology, a constructive me... more This paper presents the latest research and developments in Modular Technology, a constructive methodology designed to create the environments of the virtual driving simulators of CITEF. Modular Technology discretizes the scene into a finite number of modules or portions of the environment, which after being instantiated and subjected to a series of geometric transformations using shaders, are meticulously assembled to reproduce the virtual scene. This tiling system has a set of particularities that make it different from the rest of tiling systems used up to now. These particularities are designed to get the maximum benefit of these type of virtual representations and can be summarized in four points: the shape of the module; the way in which the family is defined; the positioning system of these modules; and the deformation of these modules using shaders. In this way a substantial reduction in the number of geographical entities in the environment can be attained and an increase i...
UKSim2010 - UKSim 12th International Conference on Computer Modelling and Simulation, 2010
This paper presents the latest research and developments in Modular Technology. That is, the opti... more This paper presents the latest research and developments in Modular Technology. That is, the optimized repetition of the same geometry or module, for the generation of large virtual environments for the simulators that are designed by CITEF. The current trend is on redirecting the maximum possible share of graphical calculation to the GPU to lighten the load of the CPU as far as possible, as this is slower and less suitable for graphic calculation. Modular Technology, which has been successfully used for some time in driving training simulators, is particularly suitable for the implementation of operations in the GPU through programming shaders. In this way a substantial reduction in the number of geographical entities in the environment can be attained and an increase in the diversity and flexibility of the environment. This is achieved by discretizing the environment into a series of instantiated modules and using shaders in an appropriate manner based only on a few parameters. There are many advantages to be had from this form of generation: savings in scene size, loading times and resource requirements, greater flexibility and clarity of the scene graph and a more substantial upgrade capacity of the environment.
Multiplying both sides of (B2) by exp(t/rH) we obtain , ' exp(t/rH) + Q/TH) exp(t/rH) = f (t) exp... more Multiplying both sides of (B2) by exp(t/rH) we obtain , ' exp(t/rH) + Q/TH) exp(t/rH) = f (t) exp(t/TH) We can use the identity d(xy)/dr = i y + x, ' which gives d b exp(t/rH))/dt eXP(f/TH) which can then be integrated to determine the concentration y = [H(t)] at a given time t = 1' : I' f(t) exp(t/rH) dr + c Y exp(t/TH)If=V = y(t3 = eXp(-f'/TH) x'hf) e X p (t / r~) dt + c (B3) At t = 0 the value of the integral is zero, leaving y(t? = C. The boundary condition y(t? = 0 exists which implies that C = 0. The rate of product formation may be written Assuming [DCI] remains constant over time we have k[DCI] = k', and (B4) may then be written in a form analogous to (B2): 2 + z/7H k'y(f) and solved to give a t the time of detection, t = td: Z(fd) = eXp(-fd/Tp)xfdk'y(t') eXp(f'/rp) dt' Substituting in (B3) we obtain an expression for the product concentration a t time tdr [P(td)] = Z(td): Z(td) = exp(:) L f d k t exp(2) x. . [ x ' n t) exp(i) dt ] exp(5) dt' (B5) The integral in (B3) can be approximated by %ti) exp(ti/TH)h i=O which when substituted into eq B3 gives m i=o W (t m) I = exp(-tm/TH)x.Lf(fi) exP(ti/r~)hl (B6) where h is the width of the interval used in the summation. In this study the summation was performed using 0.5-ns increments. Similarly, the integral in (BS) can be approximated by to give where [P(t,)] can be either [D(t)ld or [Cl(t)]d and T~ is either T D or TCI.
The sport education model (SEM) has been suggested to have a positive impact on students’ motivat... more The sport education model (SEM) has been suggested to have a positive impact on students’ motivational processes within the physical education setting. However, there is no evidence about how this methodology can affect such processes in the unconventional scenario provoked by the COVID-19 pandemic. The aim of the present study was to analyze the effect of a SEM-based teaching intervention on students’ basic psychological needs (BPN), intrinsic motivation, and behavioral engagement in physical education. For this purpose, a quasi-experimental study was carried out in which two groups of secondary students (Mage= 14.61, SD= 0.5) were taught a basketball unit following either the SEM or traditional teaching. Previously validated questionnaires were administered both before and after the intervention. The results showed that students following the SEM methodology significantly improved their autonomy satisfaction (MPre = 3.09 vs. Mpost = 3.63), competence satisfaction (Mpre = 3.48 vs. ...
This paper presents the latest research and developments in Modular Technology, a constructive me... more This paper presents the latest research and developments in Modular Technology, a constructive methodology designed to create the environments of the virtual driving simulators of CITEF. Modular Technology discretizes the scene into a finite number of modules or portions of the environment, which after being instantiated and subjected to a series of geometric transformations using shaders, are meticulously assembled to reproduce the virtual scene. This tiling system has a set of particularities that make it different from the rest of tiling systems used up to now. These particularities are designed to get the maximum benefit of these type of virtual representations and can be summarized in four points: the shape of the module; the way in which the family is defined; the positioning system of these modules; and the deformation of these modules using shaders. In this way a substantial reduction in the number of geographical entities in the environment can be attained and an increase i...
UKSim2010 - UKSim 12th International Conference on Computer Modelling and Simulation, 2010
This paper presents the latest research and developments in Modular Technology. That is, the opti... more This paper presents the latest research and developments in Modular Technology. That is, the optimized repetition of the same geometry or module, for the generation of large virtual environments for the simulators that are designed by CITEF. The current trend is on redirecting the maximum possible share of graphical calculation to the GPU to lighten the load of the CPU as far as possible, as this is slower and less suitable for graphic calculation. Modular Technology, which has been successfully used for some time in driving training simulators, is particularly suitable for the implementation of operations in the GPU through programming shaders. In this way a substantial reduction in the number of geographical entities in the environment can be attained and an increase in the diversity and flexibility of the environment. This is achieved by discretizing the environment into a series of instantiated modules and using shaders in an appropriate manner based only on a few parameters. There are many advantages to be had from this form of generation: savings in scene size, loading times and resource requirements, greater flexibility and clarity of the scene graph and a more substantial upgrade capacity of the environment.
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