Use of the Learning Management System (LMS) at the Instituto Tecnológico de Oaxaca

Educational platforms are tools that facilitate the teaching learning process. The LMS platforms: Edmodo, Schollogy and Moodle complement this process between students and professors. The use of these platforms was analyzed at the Technological Institute of Oaxaca, with the participation of students from the following careers: Electronic Engineer, Electrical Engineer, Civil Engineer, Mechanical Engineer, Industrial Engineer, Chemical Engineer, Business Management Engineer, Computer Systems Engineer, Bachelor of Administration and professors; all of them agree with that the most used platform is Moodle. One of the main objective is identify and classify the LMS used by students of the semesters: second, fourth, sixth, eighth and tenth, as well as teachers during the period January-June 2019. In addition, it was analyzed the use of LMS and the percentage of students and professors who use the platform as a teaching-learning strategy is determined. For the analysis of the use of LMS in the Technological Institute of Oaxaca, the methodology that was considered consists in the next phases: problem statement, definition of objective, elaboration of the theoretical framework, elaboration and analysis of surveys, process design and conclusions.

Equivalent Impedance Models for Electrochemical Nanosensor-Based Integrated System Design

Models of electrochemical sensors play a critical role for electronic engineers in designing electrochemical nanosensor-based integrated systems and are also widely used in analyzing chemical reactions to model the current, electrical potential, and impedance occurring at the surface of an electrode. However, the use of jargon and the different perspectives of scientists and electronic engineers often result in different viewpoints on principles of electrochemical models, which can impede the effective development of sensor technology. This paper is aimed to fill the knowledge gap between electronic engineers and scientists by providing a review and an analysis of electrochemical models. First, a brief review of the electrochemical sensor mechanism from a scientist’s perspective is presented. Then a general model, which reflects a more realistic situation of nanosensors is proposed from an electronic engineer point of view and a comparison between the Randles Model is given with its application in electrochemical impedance spectroscopy and general sensor design. Finally, with the help of the proposed equivalent model, a cohesive explanation of the scan rate of cyclic voltammetry is discussed. The information of this paper can contribute to enriching the knowledge of electrochemical sensor models for scientists and is also able to guide the electronic engineer on designing next-generation sensor layouts.

Blind Data

This chapter details a blind date between two researchers who have very different notions about the nature of data and the ethos and practices of science. One is an electronic engineer, while the other is an anthropologist. The anthropologist studies how digital technology is built and used, examining the politics and praxes of some start-up companies who were developing new apps. Meanwhile, the electronic engineer works on a sound-sensing network for monitoring and modelling background noise across the city. The chapter then looks at their debate on data creation and collection. The anthropologist makes a point about scientific practice, arguing that the electronic engineer is practising mechanical objectivity — trying to minimize biases, errors, calibration issues, and so on — but it is still set up in their vision, based on their education and experience, and compromising for circumstance. Thus, they are still making choices that influence the outcome.

Control of Power Electronics through a Photonic Bus: Feasibility and Prospects

The ubiquitous diffusion of Power Electronic Converters (PECs) in many fields of application including traction and energy conversion is suggesting the possibility of new and better integration of advanced power conversion and ICT services. This work investigates the possible advancements in the use of optical fibers for control of PECs, using Plastic Optical Fiber. The optical communication link connects the switching control to the converter control, following the line of separation between the expertises of the power electronic engineer and the control engineer. Control wise, the PEC becomes a black box compatible with any off-board controller, now immune from the Electromagnetic Interference (EMI) produced by the power switches. The redundant optical link is ready for the high switching (and sampling) frequencies possible with the use of SiC power semiconductor devices (100 kHz+). Distributed control of multiple PEC units and advanced telemetry for diagnostics and prognostics are targeted. A proof-of-concept demonstrator is presented and tested. Moreover, the possible evolution towards a power electronic cloud with remote management and orchestration is described.

Combustion Heat Meter

In Memoriam—In memory of Dr. Zbigniew Magonski, a talented electronic engineer and inventor, was born in Glubczyce, Poland in 1950 and passed away in Cracow, Poland in 2017. He received M.Sc. degree in Solid State Technology from the Technical University of Wrocław, Poland in 1973, and PhD degree from the AGH University of Science and Technology, Cracow, Poland in 2000. For 15 years, he was with the R&D Center for Hybrid Microelectronics, Cracow Poland. At that time, his interest was focused on hybrid A/D, D/A converters also on DC HV power converters. Later, for 28 years, he was with the Department of Electronics, AGH University of Science and Technology, Cracow, Poland. His research interests covered ceramic microfluidic systems, hydrocarbon combustors, and high-temperature solid oxide fuel cells. In 1994–1995, he was with Summit Technology, Massachusetts, involved in a project relating to HV supplying of excimer lasers. He was a member of IMAPS US Chapter, the author of 13 patents and almost 50 technical papers connected with electronic technology. He was a caring husband and father and a good friend of many of us. We will miss you, Zbyszek. This article presents a proposal of a thermal instrument intended for the evaluation of heat energy of fluid fuels. Two thermal devices the flow meter and the combustor are the basic components of the instrument. The meter maintains a constant temperature in the vicinity of the combustion zone. The amount of heat energy in the fuel is calculated as the ratio of the electric power change expressed in Watts to the change of fuel supply delivered to the combustor within a time period of 1 s. The method enables a direct evaluation of fuel energy expressed in Joules per unit of mass or volume. For some applications, the meter may be a good alternative for a bulky bomb calorimeter.

Using Remote Lab for Enhancing E-Learning on FPAAs

Analog and digital electronic subjects are part of the electronic engineer degree but its taught is not easy because they are founded in opposite methodologies. The electronic design in the digital field is centered in the use of microprocessor and FPGA based circuits using high level programing/configuring languages. The counterpart analog design is traditionally based in the use of elementary components associated with macroblocks such operational amplifiers in order to built-up the wanted mission circuit. Some few components, as the FPAA, are analogically configurable in a similar manner already used with the FPGA. However the use of this kind of components is not straightforward once is necessary acquire some concepts not taught in the traditionally analog electronic classes. The current work present an innovative remote lab to support teaching of the FPAAs.

Higher education and research innovation in China

China places a great emphasis on boosting its innovative capability, which it says is key to meeting the challenges in economic development and global competition. At the heart of the matter is how the country could produce its own agent of innovation—creative graduates and postgraduates. In a forum chaired by National Science Review's executive associate editor Mu-ming Poo, five panelists from top universities discuss the problems and challenges of higher education in China and in what ways the system needs to be reformed. Yuanfang Chen Physician and Vice Chair of Peking Union Medical College's Expert Committee on Education in Beijing Song Gao Chemist and Vice President of Peking University in Beijing Ke Gong Electronic Engineer and President of Nankai University in Tianjin Yigong Shi Biologist and Dean of Tsinghua University's School of Life Sciences in Beijing Chia-Wei Woo Physicist and Founding President of Hong Kong University of Science and Technology in Hong Kong Mu-ming Poo (Chair) Neuroscientist and Director of Chinese Academy of Sciences’ Institute of Neuroscience in Shanghai