This paper reported an AR based teaching method adopted during the movement control period for undergraduate engineering students to perform electrical machine laboratory. In this work, Unity 3D development platform and Vuforia Engine software development kit are applied to create the AR system. The content of the practical component is projected…

The students following Engineering disciplines should acquire a conceptual understanding of the concepts and the processors and attitudes. There are two recognizable learning environments for students: classroom and laboratory environments. With the COVID-19 Pandemic, both environments merged to online environments, impacting students' processes…

Chemistry includes observable phenomena and materials related to daily life, but learners sometimes have difficulties understanding the theoretical and abstract nature of chemistry as well as its applications and relating it to everyday experiences. In this manner, the aim of the study is to determine and assess whether pre-service science and…

The area of interest considered for the study was the overall academic achievement in biology lecture and laboratory courses using Bloom's Taxonomy. The problem of the study is the lack of higher-order thinking skills leading to a learning gap in many universities and colleges. The purpose of the quantitative correlational study was to determine…

The laboratory experiment presented here describes the use of a calcium ion-selective electrode (Ca-ISE) to determine the concentration of zinc in a supplement tablet. This approach was developed to show students how to expand the range of applications of Ca-ISE to enable the determination of metal ions other than Ca[superscript 2+]. To determine…

Infrared (IR) spectroscopy and catalysis represent two of the most practically relevant topics in chemistry, but they are normally taught in separate contexts at the undergraduate level. Although IR spectroscopy is introduced to students as a tool for organic compound characterization, it also finds wide applicability in the investigation of…

Laboratory safety has received heightened attention due to a series of devastatingly tragic accidents in both academic and nonacademic settings. Consequently, chemistry departments at various academic institutions now offer some form of formal training in laboratory safety for entering graduate students. Although the extent of this training varies…

Recently, topical products advertising cannabinoid ingredients have gained popularity. Consumers are seeing an increase of commercial products containing ingredients from hemp oil to cannabidiol (CBD) due to health benefit claims. Cosmetic products containing cannabinoids are currently not regulated at the federal level. A laboratory experiment…

I study the technology transfer process at universities and federal laboratories, based on 49 interviews of postdoctoral scientists and their supervisors (principal investigators or PIs) at two large U.S. research universities and four major National Institute of Health and Department of Energy federal laboratories. This dissertation is unique in…

The glowing discharges of plasma obtained by introducing direct current high voltages between two electrodes in a chamber that contains a low pressure gas produces a spectacular effect that makes it attractive to be used as a laboratory experiment for students. Setting up this experiment is however costly and has crucial safety issues to be…

Water exhibits a maximum in density at normal pressure at around 4° degree temperature. This paper demonstrates that during cooling, at around 4 °C, the temperature remains constant for a while because of heat exchange associated with convective currents inside the water. Superficial approach implies it as a new anomaly of water, but actually it…

This work presents experiments to teach fundamentals of automation through a sequence of laboratory practices that naturally guide to development of an on/off control system. It focuses on the integration of technological and scientific concepts, based on an educational approach associated with a problem-solving technique.

At many universities, silver nitrate is used in teaching laboratories, and a resulting waste product is often silver chloride. Silver chloride is not a compound that can be discarded into a sink as it has harmful effects to the environment; however, commercial waste disposal is costly, and replacement of the silver nitrate reagent is expensive.…

One dimensional (1-D)[superscript 1] H and [superscript 13]C NMR experiments are common tools used in undergraduate organic laboratories to characterize synthesized molecules. However, 1-D NMR spectra cannot always provide unambiguous structure determination. In research laboratories, advanced NMR spectroscopy methods are employed for structural…

The internal sensors in smartphones for their advanced add-in functions have also paved the way for these gadgets becoming multifunctional tools in elementary experimental physics. For instance, the acceleration sensor has been used to analyze free-falling motion and to study the oscillations of a spring-mass system. The ambient light sensor on…