scholarly journals Simple Industrial Process Simulation with Mindstorms NXT as Tool in Automation Lessons

2014 ◽  
Vol 2 (10) ◽  
pp. 194-203
Author(s):  
Bruno Alves Maia ◽  
Marcelo H. Stoppa
Keyword(s):  
Process Simulation ◽  
Industrial Process ◽  
Simulation System ◽  
The Body ◽  
Automated System ◽  
Automated Manufacturing ◽  
Programmable Logic ◽  
Basic Product ◽  
Technological Tools ◽  
Two Phases

This work presents the development of a simulation prototype for an automated manufacturing process using the Mindstorms NXT LEGO© robotic kit. This process consists of assembling a basic product, namely a mini car done with LEGO© pieces, into two phases. First, the coupling of the body and chassis and after this, the separation of assembled products by colour. The intent here is to show that it is possible to create an automated system with NXT, like a mockup, that can be simulate a real system, and which has similarity to an automated system using a Programmable Logic Controller (PLC), with the advantage of being more practical and cheaper than an educational simulation system with PLC. The aims here is present an adaptable tool, to auxiliar the automation teaching and to motivate to use of new technological tools in classroom.

scholarly journals Simulation Platform for Fault Diagnosis

2022 ◽  
pp. 45-58
Author(s):  
Jing Wang ◽  
Jinglin Zhou ◽  
Xiaolu Chen
Keyword(s):  
Fault Diagnosis ◽  
Process Simulation ◽  
Fermentation Process ◽  
Industrial Process ◽  
Simulation System ◽  
Fault Classification ◽  
Simulation Platform ◽  
Multivariate Statistical ◽  
Fault Monitoring ◽  
Statistical Analysis Methods

AbstractThe previous chapters have described the mathematical principles and algorithms of multivariate statistical methods, as well as the monitoring processes when used for fault diagnosis. In order to validate the effectiveness of data-driven multivariate statistical analysis methods in the field of fault diagnosis, it is necessary to conduct the corresponding fault monitoring experiments. Therefore this chapter introduces two kinds of simulation platform, Tennessee Eastman (TE) process simulation system and fed-batch Penicillin Fermentation Process simulation system. They are widely used as test platforms for the process monitoring, fault classification, and identification of industrial process. The related experiments based on PCA, CCA, PLS, and FDA are completed on the TE simulation platforms.

Kinematics of rotation in place during defense turning in the crayfish Procambarus clarkii

2001 ◽  
Vol 204 (3) ◽  
pp. 471-486 ◽  
Author(s):  
N. Copp ◽  
M. Jamon
Keyword(s):  
Angular Velocity ◽  
Procambarus Clarkii ◽  
Angular Acceleration ◽  
The Body ◽  
Simple Variation ◽  
Freely Behaving ◽  
Leg Motion ◽  
Two Phases ◽  
Analysis System ◽  
Final Orientation

The kinematic patterns of defense turning behavior in freely behaving specimens of the crayfish Procambarus clarkii were investigated with the aid of a video-analysis system. Movements of the body and all pereiopods, except the chelipeds, were analyzed. Because this behavior approximates to a rotation in place, this analysis extends previous studies on straight and curve walking in crustaceans. Specimens of P. clarkii responded to a tactile stimulus on a walking leg by turning accurately to face the source of the stimulation. Angular velocity profiles of the movement of the animal's carapace suggest that defense turn responses are executed in two phases: an initial stereotyped phase, in which the body twists on its legs and undergoes a rapid angular acceleration, followed by a more erratic phase of generally decreasing angular velocity that leads to the final orientation. Comparisons of contralateral members of each pair of legs reveal that defense turns are affected by changes in step geometry, rather than by changes in the timing parameters of leg motion, although inner legs 3 and 4 tend to take more steps than their outer counterparts during the course of a response. During the initial phase, outer legs 3 and 4 exhibit larger stance amplitudes than their inner partners, and all the outer legs produce larger stance amplitudes than their inner counterparts during the second stage of the response. Also, the net vectors of the initial stances, particularly, are angled with respect to the body, with the power strokes of the inner legs produced during promotion and those of the outer legs produced during remotion. Unlike straight and curve walking in the crayfish, there is no discernible pattern of contralateral leg coordination during defense turns. Similarities and differences between defense turns and curve walking are discussed. It is apparent that rotation in place, as in defense turns, is not a simple variation on straight or curve walking but a distinct locomotor pattern.

Newtonian flow theory for slender bodies in a dusty gas

1981 ◽  
Vol 108 ◽  
pp. 147-157 ◽  
Author(s):  
R. M. Barron ◽  
J. T. Wiley
Keyword(s):  
Shock Wave ◽  
Gas Flow ◽  
The Body ◽  
Dusty Gas ◽  
Newtonian Theory ◽  
Wedge Surface ◽  
Slender Bodies ◽  
Two Phases ◽  
Flow Variables ◽  
Thin Wedge

Hypersonic small-disturbance theory is extended to consider the problem of dusty-gas flow past thin two-dimensional bodies. The mass fraction of suspended particles is assumed to be sufficiently large that the two-way interaction between particle phase and gas phase must be considered. The system of eight governing equations is further reduced by considering the Newtonian approximation γ → 1 andM∞→ ∞. The Newtonian theory up to second order is studied and the equations are solved for the case of a thin wedge at zero angle of attack. Expressions for the streamlines, dust-particle paths, shock-wave location and all flow variables are obtained. It is seen that the presence of the dust increases the pressure along the wedge surface and tends to bend the shock wave towards the body surface. Other effects of the interaction of the two phases are also discussed.

Growth, development and allometry of Philophthalmus nocturnus in the eyes of domestic chicks

1992 ◽  
Vol 66 (2) ◽  
pp. 100-107 ◽  
Author(s):  
V. G. M. Swarnakumari ◽  
R. Madhavi
Keyword(s):  
Growth Rate ◽  
Developmental Stages ◽  
Adult Stage ◽  
The Body ◽  
Lag Phase ◽  
Allometric Growth ◽  
Body Width ◽  
Rapid Phase ◽  
Growth Development ◽  
Two Phases

ABSTRACTFifty day-old chicks were each infected with 10 excysted metaccreariae of Philophthalimus nocturnus Looss. 1907 around each orbit and growth, development and allometry were studied. The growth rate showed two phases over a period of 35 days, a limited lag phase lasting two days post-infection in which flukes did not exceed 440 μm in length, and a rapid phase during which growth was rapid and flukes reached a size of 3·008–3·504 mm on day 35. Five developmental stages were noticed during the course of development of the metacercaria to the egg-producing adult stage. Eggs appeared in the uterus on day 14 and oculate miracidia on day 25. The hindhody, testes and ovary showed positive allometric growth, the pharnyx less so, whereas negative allometric growth was shown by the forebody. Body width, oral sucker and ventral sucker were close to isometry, growing at the same rate as the body length.

On the Motion of an Elastic Body Rolling/Sliding on an Elastic Substrate

1995 ◽  
Vol 117 (2) ◽  
pp. 308-314 ◽  
Author(s):  
A. Spector ◽  
R. C. Batra
Keyword(s):  
Elastic Body ◽  
Frictional Force ◽  
Three Dimensional ◽  
The Body ◽  
Elastic Substrate ◽  
Linear Elastic ◽  
Linear Elastic Body ◽  
Body Rolling ◽  
Applied Forces ◽  
Two Phases

The three-dimensional evolutionary problem of rolling/sliding of a linear elastic body on a linear elastic substrate is studied. The inertial properties of the body regarded as rigid are accounted for. By employing an asymptotic analysis, it is shown that the process can be divided into two phases: transient and quasistationary. An expression for the frictional force as a function of the externally applied forces and moments, and inertial properties of the body is derived. For an ellipsoid rolling/sliding on a linear elastic substrate, numerical results for the frictional force distribution, slip/adhesion subareas, and the evolution of the slip velocity are given.

scholarly journals Automated Analysis of Body Movement in Emotionally Expressive Piano Performances

2008 ◽  
Vol 26 (2) ◽  
pp. 103-119 ◽  
Author(s):  
Ginevra Castellano ◽  
Marcello Mortillaro ◽  
Antonio Camurri ◽  
Gualtiero Volpe ◽  
Klaus Scherer
Keyword(s):  
Emotional Expression ◽  
Temporal Dynamics ◽  
Body Movement ◽  
Music Performance ◽  
The Body ◽  
Head Movements ◽  
Automated System ◽  
Upper Body ◽  
Musical Score ◽  
Motion Cues

EMOTIONAL EXPRESSION IN MUSIC PERFORMANCE includes important cues arising from the body movement of the musician. This movement is related to both the musical score execution and the emotional intention conveyed. In this experiment, a pianist was asked to play the same excerpt with different emotionally expressive intentions. The aim was to verify whether different expressions could be distinguished based on movement by trying to determine which motion cues were most emotion-sensitive. Analyses were performed via an automated system capable of detecting the temporal profiles of two motion cues: the quantity of motion of the upper body and the velocity of head movements. Results showed that both were sensitive to emotional expression, especially the velocity of head movements. Further, some features conveying information about movement temporal dynamics varied among expressive conditions allowing emotion discrimination. These results are in line with recent theories that underlie the dynamic nature of emotional expression.

Evaluation of Nutritional Assessment Quality and Rate of Referral to A Dietitian in Shariati Hospital, Tehran, Iran: A Clinical Audit

2021 ◽  
Author(s):  
Mohammadreza Emami ◽  
Meysam Zarezadeh ◽  
Mohammad Sharifzadeh ◽  
Zahra Fazelifarsani ◽  
Masoud Khorshidid
Keyword(s):  
Nutritional Assessment ◽  
The Body ◽  
Health Plans ◽  
Appetite Loss ◽  
Nutritional Screening ◽  
Factors Affecting ◽  
Second Phases ◽  
System Requirements ◽  
Two Phases

Background: Malnutrition is an acute or a chronic condition resulting from an imbalance in the intake, both in the form of undernutrition and over nutrition, leading to changes in the composition or reduced function of the body. Bio-social conditions and acute or chronic diseases are the most important factors affecting nutrition. It has been suggested that awareness of the prevalence and severity of malnutrition in hospitalized patients can be used by managers to understand the causes, health care system requirements, and health plans. Methods: Medical records of 483 patients from 11 different wards of Shariati general hospital were assessed to evaluate the quality of nutritional assessment and the rate of referral to nutrition experts by physicians. This study consisted of two phases: evaluation of initial nutritional assessment and assessing the accuracy of malnutrition screening forms completion. Results: Our study showed no initial nutritional assessment for 34% of the patients. Assessment of the accuracy of malnutrition screening showed that there was a considerable error in the reporting of BMI (66%), weight loss (51%), appetite loss (50%), and severity of the patient’s situation (39%). Also, the rate of referral to a nutritionist was 0% and 1% in the first and second phases of the study, respectively. Conclusion: The present study showed that the quality of nutritional screening and subsequent referral to nutrition experts for professional nutritional assessment is negligible in Shariati hospital, Tehran, Iran.

scholarly journals Equation Córdoba: A Simplified Method for Estimation of Body Fat (ECORE-BF)

2019 ◽  
Vol 16 (22) ◽  
pp. 4529 ◽  
Author(s):  
Molina-Luque ◽  
Romero-Saldaña ◽  
Álvarez-Fernández ◽  
Bennasar-Veny ◽  
Álvarez-López ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Body Fat ◽  
Intraclass Correlation ◽  
The Body ◽  
Second Phase ◽  
Fat Percentage ◽  
Daily Work ◽  
Two Phases ◽  
New Equation

Background: Many methods for measuring body fat have been developed, but applications in clinical settings are limited. For this reason, researchers have tried to identify different formulas for its estimation but most of are hard to incorporate into daily work due to the variability in population and difficulty of use. The aim of this study was to develop and validate a new equation for the simplified estimation of body fat using the Clínica Universidad de Navarra – Body Adiposity Estimator (CUN-BAE) as a reference. Methods: This research was conducted in two phases. In the first, the new body fat estimation equation was developed. The developed equation was validated in the second phase. Pearson’s linear correlation, raw and adjusted linear regressions, the intraclass correlation coefficient, and Bland–Altman graphs were used. Results: The variables that best adjusted the body fat percentage were age, sex, and the Napierian logarithm of Body Mass Index (LnBMI), forming the Equation Córdoba for Estimation of Body Fat (ECORE-BF) model. In its validation, the model presented correlation values of 0.994, an intraclass correlation coefficient of 0.960, with the Bland–Altman graph indicating means differences of 1.82 with respect to the estimation with the CUN-BAE. Nevertheless, although the aim was to simplify the CUN-BAE, the main limitation of this study is that a gold standard, such as air displacement plethysmography (ADP) or dual-energy X-ray absorptiometry (DXA), was not used. Conclusions: The proposed equation (ECORE-BF) simplified the CUN-BAE and provided a precise method, respecting the principle of parsimony, for the calculation of body fat.

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