scholarly journals Thinking Skills in Problem Solving: Pre-Knowledges

2019 ◽  
Author(s):  
Ignacio Laiton
Keyword(s):  
Higher Education ◽  
Mathematical Model ◽  
Problem Solving ◽  
Thinking Skills ◽  
Theoretical Knowledge ◽  
Pedagogical Strategies ◽  
Electrical Physics ◽  
Physics Students ◽  
Starting Point ◽  
The Mathematical Model

The present article shows the results of a study aimed at evaluating the way in which physics students of first semesters use the thinking skills in problem solving. We speak of pre-knowledge in terms of prior theoretical knowledge of an area of ​​knowledge, in this case it is about identifying pre-knowledge in the case of thinking skills for students who have recently entered higher education. At present, the teaching of thinking skills is considered one of the main characteristics of education for the 21st century. An instrument of ten problems submitted to expert judgment was designed to be applied during the academic semester to the students of electrical physics of two Colombian universities during the years 2016 and 2018.   Are evaluated the categories of description, representation, identification of relationships, use of the mathematical model and  drawing conclusions for each of the problems. The results show statistically a very low starting point in the ability to use such skills, and is in turn a reflection element for the design of effective pedagogical strategies in solving problems in physics in higher education.

Simulation and Optimization of Airframe Assembly Process

2018 ◽  
Author(s):  
Sergey Lupuleac ◽  
Nadezhda Zaitseva ◽  
Maria Stefanova ◽  
Sergey Berezin ◽  
Julia Shinder ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Statistical Analysis ◽  
Problem Solving ◽  
Contact Problem ◽  
Quality Measures ◽  
Assembly Process ◽  
Variation Analysis ◽  
Simulation And Optimization ◽  
The Mathematical Model ◽  
Variation Simulation

An approach for simulating the assembly process where compliant airframe parts are being joined by riveting is presented. The foundation of this approach is the mathematical model based on the reduction of the corresponding contact problem to a Quadratic Programming (QP) problem. The use of efficient QP algorithms enables mass contact problem solving on refined grids, which is needed for variation analysis and simulation as well as for the consequent assembly process optimization. To perform variation simulation, the initial gap between the parts is assumed to be stochastic and a cloud of such gaps is generated based on statistical analysis of the available measurements. The developed approach is illustrated with two examples, simulation of A350-900 wing-to-fuselage joining and optimization of A320 wing box assembly. New contact quality measures are discussed.

scholarly journals Analysis of the Problem of Staff Allocation to Work Stations

2019 ◽  
Vol 1 (1) ◽  
pp. 545-550
Author(s):  
Marek Krynke ◽  
Krzysztof Mielczarek ◽  
Alan Vaško
Keyword(s):  
Mathematical Model ◽  
Production Line ◽  
Production Capacity ◽  
Organization Of Work ◽  
Machine Operation ◽  
Staff Allocation ◽  
Starting Point ◽  
Personnel Allocation ◽  
The Mathematical Model

Abstract The proper organization of work is to set the workflow to the slightest effort of man and machine operation to obtain maximum results. The article presents the problem of the allocation of personnel that occurs in a real company. The mathematical model for this issue was formulated. An algorithm solving the problem of personnel allocation is presented. The proposed analysis is a starting point for determining the production capacity and load of each workstation, which is particularly important when using multi-station work and balancing the production line.

scholarly journals Pemecahan Problem Efisiensi Faktor Produksi dengan Metode Linear Programming

2018 ◽  
Vol 20 (1) ◽  
pp. 20
Author(s):  
Surahman Surahman
Keyword(s):  
Mathematical Model ◽  
Linear Programming ◽  
Problem Solving ◽  
Decision Maker ◽  
Real Condition ◽  
The Real ◽  
The Mathematical Model

<p>The problem solving of the production element efficiency by using linear programming can be done by formulating the mathematical model. The principles that have to be kept first are:</p><ol><li>The whole set of the problems can be divided into activity parts.</li><li>Each of the activities must have been determined precisely (about the quantity)</li><li>The quantity must have devided precisely</li><li>The limit of the capacity should be determined</li><li>Making the model</li></ol><p>After that, the next step is finding the solution. However, one thing to remember is that the problem solving using linear programming is only a medium. About the application depends on the decision maker or the user that will not be out from the real condition.</p>

scholarly journals Procedure for the quantification of the degradation index of Photovoltaic Generators

2021 ◽  
Vol 2 (2) ◽  
pp. 47-53
Author(s):  
Proenza Y. Roger ◽  
Camejo C. José Emilio ◽  
Ramos H. Rubén
Keyword(s):  
Mathematical Model ◽  
Power Generation ◽  
Solar Energy ◽  
Operating Conditions ◽  
Energy Research ◽  
Degradation Index ◽  
Starting Point ◽  
Santiago De Cuba ◽  
Photovoltaic Generators ◽  
The Mathematical Model

A procedure is presented for the quantification of the degradation index of Photovoltaic Generators, based on the quantification of the operational losses inherent in the system, which allows maintaining the nominal operating conditions and by the warranty terms of the photovoltaic generator. A photovoltaic generator connected to the network with a nominal power of 7.5 kWp, installed in the Solar Energy Research Center of Santiago de Cuba, is used to evaluate and validate the procedure. The starting point is the mathematical model of the photovoltaic generator, then the operational losses of the photovoltaic generator are quantified and the mathematical model is adjusted to real conditions, through a polynomial adjustment.  The results obtained show that the photovoltaic generator presents deviations in terms of the nominal power generation, because the operational losses are 7% with respect to the values ​​given by the manufacturer.

scholarly journals Empowering critical thinking skills with problem solving in higher education

2019 ◽  
Vol 1280 ◽  
pp. 032047
Author(s):  
B Utami ◽  
R M Probosari ◽  
S Saputro ◽  
Ashadi ◽  
M Masykuri
Keyword(s):  
Higher Education ◽  
Critical Thinking ◽  
Problem Solving ◽  
Thinking Skills ◽  
Critical Thinking Skills

scholarly journals The Direction of Developing Courses and Assessment Tools for Enhancing Creativity Aligned with Critical Thinking

2021 ◽  
Vol 15 (5) ◽  
pp. 325-342
Author(s):  
Chun-gi Min
Keyword(s):  
Critical Thinking ◽  
Problem Solving ◽  
Liberal Arts ◽  
Arts Education ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Assessment Tools ◽  
Liberal Arts Education ◽  
Technical Problems ◽  
Starting Point

The intellectual activities of creativity and critical thinking are essential in the complex problem-solving process of modern society. This article starts from the position that it is necessary to develop courses and assessment tools that is needed for simultaneously facilitating creativity and critical thinking skills at the same time in universities. The purpose of this paper is to provide a starting point for discussion on the development of creative competency courses and assessment tools required to link creativity and critical thinking skills. In Korea, there are many studies dealing with creativity and critical thinking separately, while in foreign countries, there is an active discussion taking place about the development of courses and assessment tools. To this end, based on the creative competency area set as a core competency in the liberal arts education of a university, the discussion was conducted by citing relevant domestic and foreign materials. First, in the process of arranging the connection between creativity and critical thinking, the necessity of linking these two skills to solve creative problems was confirmed. Next, the direction of the development of courses that can foster creativity and critical thinking abilities together was explored, focusing on lesson goals, contents, and methods. In order to simultaneously enhance creativity and critical thinking abilities among our students, it is necessary to design an activity-centered curriculum that combines both skills based on the existing creativity education and critical thinking education. Finally, the method of developing an assessment tool that can authentically measure the students’ creativity and critical thinking ability is described mainly using existing tools and in terms of employing technologies. Research on how to integrate previously developed tools for measuring creativity and measuring critical thinking skills should be continued. In particular, it is necessary to prepare a plan to solve technical problems in order to use technology in the course management and development of assessment tools. Classes for cultivating creativity and critical thinking abilities in our students can be more effective in liberal arts education for the simple reason that lessons within their majors emphasize the acquisition of specialized knowledge. Thus, there is a limit to creative competency education. Since modern and future societies require us to possess the ability to generate creative ideas in abundance in order to solve complex problems, as well as the ability to critically reflect and evaluate ideas and apply them to problem solving, it is urgent to develop courses and assessment tools that can align creativity with critical thinking. Designing effective classes through in-depth discussions on the development of courses and assessment tools remains as a theme for further research.

scholarly journals PENDIDIKAN KETERAMPILAN BERPIKIR KRITIS DAN KREATIF SERTA KEPEKAAN SOSIAL GURU DALAM MENGAJAR

2019 ◽  
Vol 6 (1) ◽  
pp. 70
Author(s):  
I Nyoman Sueca
Keyword(s):  
Higher Education ◽  
Decision Making ◽  
Problem Solving ◽  
Creative Thinking ◽  
Daily Life ◽  
Thinking Skills ◽  
Problem Solving Skills ◽  
Life Problems ◽  
Critical And Creative Thinking

<em>Education Skills is expected to provide knowledge that allows people to overcome life problems in their professional duties and in daily life. Therefore teachers in carrying out their duties professionally, critical and creative thinking skills are needed, problem solving skills and decision making, as well as in Higher Education lecturers educate their students to be able to think critically and creatively in solving all problems they face. The development of critical and creative thinking skills carried out by teachers and lecturers is an educational orientation that fits in life situations that change very quickly</em>

scholarly journals CONSTRUCTING A MODEL OF VIBROSEIS SIGNAL COMPLICATED BY HARMONICS

2020 ◽  
Vol 1 (1) ◽  
pp. 72-83 ◽  
Author(s):  
M. S. Denisov ◽  
A. A. Egorov
Keyword(s):  
Mathematical Model ◽  
Basis Function ◽  
Harmonic Distortion ◽  
Frequency Range ◽  
Frequency Dependent ◽  
Function Decomposition ◽  
Starting Point ◽  
Processing Algorithms ◽  
The Mathematical Model ◽  
Basis Decomposition

We solve the problem of constructing the mathematical model of a vibroseis signal distorted by harmonics. Basis function decomposition is used for the approximation. The basis decomposition coefficients are frequency-dependent, i. e. filters are applied instead of multipliers. The resulting model will be the starting point for further research aimed at developing processing algorithms for the suppression of harmonic distortion, or for utilizing the harmonics to extend the frequency range of the signal.

Forecasting Watercooling in the Kattegat, the Öresund, the Belt Sea and the Arkona Basin

1987 ◽  
Vol 18 (4-5) ◽  
pp. 247-258
Author(s):  
Anders Omstedt
Keyword(s):  
Mathematical Model ◽  
Surface Water ◽  
Simulated Data ◽  
Diagnostic Study ◽  
Water Cooling ◽  
The Baltic Sea ◽  
Starting Point ◽  
Arkona Basin ◽  
The Baltic ◽  
The Mathematical Model

Some problems associated with forecasting water cooling in the entrance to the Baltic Sea are examined, using a diagnostic study from the severe ice winter of 1986/87 as a starting point. In the study, measured and numerically simulated data demonstrate that surface water cooling can be well simulated with the mathematical model presented by Omstedt (1987). Forecast tests during the same winter also indicate that the model may provide useful forecast information. However, because of the limited numbers of temperature and salinity profile measurements, the forecasts had to be accomplished with diagnostic calculations. These calculations will then produce the necessary initial data for the forecasts.

scholarly journals Cookies Internal Temperature Estimation Using IHCP Methodology

2021 ◽  
Vol 7 (1) ◽  
pp. 1-14
Author(s):  
Macías Ávila Eduardo ◽  
Díaz Yaneth Aguilar
Keyword(s):  
Heat Transfer ◽  
Mathematical Model ◽  
Problem Solving ◽  
Transfer Problem ◽  
Internal Temperature ◽  
Temperature Estimation ◽  
Inverse Heat Transfer ◽  
Inverse Heat Transfer Problem ◽  
The Mathematical Model ◽  
Adjustment Of Parameters

This work constitutes a continuation of previous work on determining the internal temperature of foods by applying inverse heat transfer problem solving techniques. In this research, a mathematical model of heat transfer applied to foods is developed whose central part heat transfer can be described in Cartesian coordinates. This model uses techniques established in the previous work. The technique is based on the adjustment of parameters involved in heat transfer, minimizing the sum of squared errors between the measured temperatures and those calculated by the mathematical model. This paper discusses how the precision of this method would be affected with respect to the measurement time of the surface temperature and the delay time of the measurement.

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