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Lozano-Parada, Jaime H.; Burnham, Helen; Martinez, Fiderman Machuca – Journal of Chemical Education, 2018
A classical nonlinear system, the "Brusselator", was used to illustrate the modeling and simulation of oscillating chemical systems using stability analysis techniques with modern software tools such as Comsol Multiphysics, Matlab, and Excel. A systematic approach is proposed in order to establish a regime of parametric conditions that…
Descriptors: Science Instruction, Chemistry, College Science, Educational Technology
Joss, Lisa; Müller, Erich A. – Journal of Chemical Education, 2019
Recent advances in computer hardware and algorithms are spawning an explosive growth in the use of computer-based systems aimed at analyzing and ultimately correlating large amounts of experimental and synthetic data. As these machine learning tools become more widespread, it is becoming imperative that scientists and researchers become familiar…
Descriptors: Science Instruction, Science Laboratories, Chemical Engineering, Educational Technology
Lee, Kilho; Comolli, Noelle K.; Kelly, William J.; Huang, Zuyi – Chemical Engineering Education, 2015
Mathematical models play an important role in biochemical engineering. For example, the models developed in the field of systems biology have been used to identify drug targets to treat pathogens such as Pseudomonas aeruginosa in biofilms. In addition, competitive binding models for chromatography processes have been developed to predict expanded…
Descriptors: Chemical Engineering, Biochemistry, College Science, Science Instruction
Killian, Benjamin J.; Singletary, Steven – Journal of Chemical Education, 2022
We present a modernization of the undergraduate physical chemistry laboratory experiment for determining the speed of sound in various gases from resonant frequencies in a spherical resonator. The resonator (schematic IR = 7.5 cm) is constructed by 3D printing with eco-friendly poly(lactic acid), a commercially viable alternative to traditional…
Descriptors: Undergraduate Study, College Science, Chemistry, Physics
Pebralia, Jesi; Amri, Iful; Rifa'i, Ahmad Imam – Physics Education, 2022
This study has proposed a simple method to show the convective heat transfer. The object in this study is an air conditioner (AC) as a simple case of convection. In addition, AC is also easy to find in the class because most classrooms in Indonesia installed AC. Usually, a visualization needs special software (i.e. MatLab or others) and good…
Descriptors: Science Instruction, Heat, Thermodynamics, Climate Control
Hernandez, Joel; Niyazov, Rafael; Tesfagiorgis, Kibrewossen – Journal of College Science Teaching, 2021
This article describes the use and advantages of the MATLAB-based program ReshmoBeam, developed to perform beam analysis, as it is done in statics courses of engineering curricula. An important goal of the article is to facilitate the dissemination of the program among faculty teaching these courses. The program is offered free to interested…
Descriptors: Computer Uses in Education, Engineering Education, Structural Elements (Construction), Mechanics (Physics)
Marlowe, Justin; Tsilomelekis, George – Journal of Chemical Education, 2020
The importance of utilizing spectroscopic techniques for unraveling structural and compositional changes in nonreacting and reacting systems is unquestionable. Nowadays, efforts are directed towards the introduction of relevant spectroscopic techniques to undergraduate students in order to prepare them for future careers in industry and academia,…
Descriptors: Science Instruction, College Science, Spectroscopy, Chemistry
Jones, Oliver A. H.; Stevenson, Paul G.; Hameka, Simone C.; Osborne, Dale A.; Taylor, Patrick D.; Spencer, Michelle J. S. – Journal of Chemical Education, 2021
The use of three-dimensional printing in chemistry education has expanded greatly in the past 10 years. The technique has been used to demonstrate a range of concepts including molecular structure, orbitals, and point groups; to produce chemical equipment such as cuvettes and columns; and even to print out mathematical shapes and functions. Here,…
Descriptors: Science Instruction, Chemistry, Spectroscopy, Printing
Stephens, Lisa I.; Mauzeroll, Janine – Journal of Chemical Education, 2019
One of the unique advantages of electrochemistry is that the relationship between thermodynamics and kinetics is quantitative, which is the basis of voltammetry. Mathematical models of electrochemical systems take advantage of this relationship to predict the effect of changing a system property (e.g., concentration, scan rate, or rate constant)…
Descriptors: Chemistry, Mathematical Models, Thermodynamics, Kinetics
Sucre-Rosales, Estefanía; Fernández-Terán, Ricardo; Carvajal, David; Echevarría, Lorenzo; Hernández, Florencio E. – Journal of Chemical Education, 2020
Herein, we present an experience-based learning approach that uses the COVID-19 pandemics knowledge about virus spread and epidemics to establish an analogy between a simple epidemics model--the SIR model (susceptible--infected--removed), and a second-order autocatalytic reaction with subsequent catalyst deactivation. Our approach provides a…
Descriptors: COVID-19, Pandemics, Communicable Diseases, Microbiology
Gonza´lez-Go´mez, David; Rodríguez, Diego Airado; Can~ada-Can~ada, Florentina; Jeong, Jin Su – Journal of Chemical Education, 2015
Currently, there are a number of educational applications that allow students to reinforce theoretical or numerical concepts through an interactive way. More precisely, in the field of the analytical chemistry, MATLAB has been widely used to write easy-to-implement code, facilitating complex performances and/or tedious calculations. The main…
Descriptors: Science Education, Secondary School Science, College Science, High School Students
Hua, Amy K.; Lakey, Pascale S. J.; Shiraiwa, Manabu – Journal of Chemical Education, 2022
This paper presents MATLAB user interfaces for two multiphase kinetic models: the kinetic double-layer model of aerosol surface chemistry and gas--particle interactions (K2-SURF) and the kinetic multilayer model of aerosol surface and bulk chemistry (KM-SUB). Each interface has simple and user-friendly features that allow undergraduate and…
Descriptors: Chemistry, Science Instruction, Computer Interfaces, Kinetics
Mercer, Conan; Leech, Donal – Journal of Chemical Education, 2018
This paper presents a system for remote monitoring of turbidity data that can detect light intensity and temperature using a microcontroller and the Internet of Things. The system comprises a light dependent resistor and infrared temperature sensor interfaced with an ESP-12E microcontroller, a programmable data acquisition platform; together these…
Descriptors: Science Instruction, Chemistry, Light, Heat
Moubayed, Abdallah; Injadat, Mohammadnoor; Shami, Abdallah; Lutfiyya, Hanan – American Journal of Distance Education, 2020
E-learning platforms and processes face several challenges, among which is the idea of personalizing the e-learning experience and to keep students motivated and engaged. This work is part of a larger study that aims to tackle these two challenges using a variety of machine learning techniques. To that end, this paper proposes the use of k-means…
Descriptors: Learner Engagement, Electronic Learning, Individualized Instruction, Undergraduate Students
Antuch, Manuel; Ramos, Yaquelin; Álvarez, Rubén – Journal of Chemical Education, 2014
SCILAB is a lesser-known program (than MATLAB) for numeric simulations and has the advantage of being free software. A challenging software-based activity to analyze the most common linear reversible inhibition types with SCILAB is described. Students establish typical values for the concentration of enzyme, substrate, and inhibitor to simulate…
Descriptors: Science Instruction, College Science, Undergraduate Study, Chemistry