scholarly journals Using Quick Response Codes with Videos in the Laboratory

2016 ◽  
Vol 18 (4) ◽  
pp. 70-80 ◽  
Author(s):  
Marina Duarte ◽  
Andresa Baptista ◽  
Gustavo Pinto
Keyword(s):  
Engineering Students ◽  
Low Cost ◽  
Digital Content ◽  
Quick Response ◽  
Qr Codes ◽  
Download Time ◽  
Undergraduate Engineering ◽  
Expensive Equipment ◽  
At Home

Using QR codes to access low-cost, educational, short videos in engineering laboratory classes might be a successful way of building a bridge from concrete to digital content. With QR codes placed on the apparatus, students will know exactly which video to watch. The scanned QR codes can be saved, enabling students to watch them again while performing the experiment or at home. Low-cost videos do not require expensive equipment and software, and keeping the videos short assures a minimum download time, making them compatible for use with smartphones and tablets. The aim of this research is to evaluate the importance undergraduate engineering students attribute to these videos and their reaction to the possibility of accessing them with QR codes scanned by a smartphone or a tablet. Results show students attributed some importance to the videos, and that the QR codes are very helpful as means to quickly and easily access the videos.

scholarly journals Learning in the Laboratory

2018 ◽  
pp. 117-138
Author(s):  
Marina Duarte ◽  
Andresa Baptista ◽  
Gustavo Pinto
Keyword(s):  
Engineering Students ◽  
Low Cost ◽  
Digital Content ◽  
Qr Codes ◽  
Download Time ◽  
Undergraduate Engineering ◽  
Expensive Equipment ◽  
At Home

Using QR codes to access videos in engineering laboratory classes might be a successful way of building a bridge from concrete to digital content. With QR codes placed on an apparatus, students know exactly which video to watch, allowing them to view the videos while performing the experiment or at home when writing the report. Low-cost videos do not require expensive equipment and software, and keeping them short assures a minimum download time for use with smartphones and tablets. The aim of this chapter is to evaluate the importance undergraduate engineering students attribute to these videos and their reaction to the possibility of accessing them with QR codes scanned by a smartphone or a tablet, using access statistics and video viewings to support the findings. Results show students attributed some importance to the videos, and that the QR codes are very helpful as means to quickly and easily access the videos.

HOW STUDENTS DEFINE THEIR SUCCESS: A RESEARCH STUDY

2020 ◽  
Author(s):  
Max Ullrich ◽  
David S. Strong
Keyword(s):  
Pilot Study ◽  
Engineering Students ◽  
Research Study ◽  
Survey Instrument ◽  
Undergraduate Engineering ◽  
Diversity And Inclusion ◽  
Full Study ◽  
Definition Of Success ◽  
Definition Of ◽  
Diverse Groups

How undergraduate engineering students define their success and plan for their future differs notably amongst students. With a push for greater diversity and inclusion in engineering schools, it is valuable to also better understand the differences in these areas among different students to allow institutions to better serve the needs of these diverse groups.  The purpose of this research study is to explore students’ definition of success both in the present and projecting forward 5 to 10 years, as well as to understand to what level students reflect on, and plan for, the future. The proposed survey instrument for the pilot stage of this research includes 56 closed-ended questions and 3 open-ended questions. Evidence for the validity of the research instrument is established through a mixed-method pilot study. This paper will discuss the survey instrument, the pilot study, and outline plans for the full study.

scholarly journals An Anti-Counterfeiting Architecture for Traceability System Based on Modified Two-Level Quick Response Codes

Electronics ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 320
Author(s):  
Shundao Xie ◽  
Hong-Zhou Tan
Keyword(s):  
Product Life Cycle ◽  
Low Cost ◽  
Prototype System ◽  
Qr Code ◽  
Quick Response ◽  
Copy Detection ◽  
Traceability System ◽  
Scanned Image ◽  
Promising Solution ◽  
Product Package

Traceability is considered a promising solution for product safety. However, the data in the traceability system is only a claim rather than a fact. Therefore, the quality and safety of the product cannot be guaranteed since we cannot ensure the authenticity of products (aka counterfeit detection) in the real world. In this paper, we focus on counterfeit detection for the traceability system. The risk of counterfeiting throughout a typical product life cycle in the supply chain is analyzed, and the corresponding requirements for the tags, packages, and traceability system are given to eliminate these risks. Based on the analysis, an anti-counterfeiting architecture for traceability system based on two-level quick response codes (2LQR codes) is proposed, where the problem of counterfeit detection for a product is transformed into the problem of copy detection for the 2LQR code tag. According to the characteristics of the traceability system, the generation progress of the 2LQR code is modified, and there is a corresponding improved algorithm to estimate the actual location of patterns in the scanned image of the modified 2LQR code tag to improve the performance of copy detection. A prototype system based on the proposed architecture is implemented, where the consumers can perform traceability information queries by scanning the 2LQR code on the product package with any QR code reader. They can also scan the 2LQR code with a home-scanner or office-scanner, and send the scanned image to the system to perform counterfeit detection. Compared with other anti-counterfeiting solutions, the proposed architecture has advantages of low cost, generality, and good performance. Therefore, it is a promising solution to replace the existing anti-counterfeiting system.

scholarly journals ART-UP: A Novel Method for Generating Scanning-Robust Aesthetic QR Codes

2021 ◽  
Vol 17 (1) ◽  
pp. 1-23
Author(s):  
Mingliang Xu ◽  
Qingfeng Li ◽  
Jianwei Niu ◽  
Hao Su ◽  
Xiting Liu ◽  
...  
Keyword(s):  
State Of The Art ◽  
Visual Quality ◽  
Qr Code ◽  
Quick Response ◽  
Estimation Model ◽  
Qr Codes ◽  
Excellent Performance ◽  
Novel Method ◽  
Coarse To Fine

Quick response (QR) codes are usually scanned in different environments, so they must be robust to variations in illumination, scale, coverage, and camera angles. Aesthetic QR codes improve the visual quality, but subtle changes in their appearance may cause scanning failure. In this article, a new method to generate scanning-robust aesthetic QR codes is proposed, which is based on a module-based scanning probability estimation model that can effectively balance the tradeoff between visual quality and scanning robustness. Our method locally adjusts the luminance of each module by estimating the probability of successful sampling. The approach adopts the hierarchical, coarse-to-fine strategy to enhance the visual quality of aesthetic QR codes, which sequentially generate the following three codes: a binary aesthetic QR code, a grayscale aesthetic QR code, and the final color aesthetic QR code. Our approach also can be used to create QR codes with different visual styles by adjusting some initialization parameters. User surveys and decoding experiments were adopted for evaluating our method compared with state-of-the-art algorithms, which indicates that the proposed approach has excellent performance in terms of both visual quality and scanning robustness.

scholarly journals Cloud-based virtual labs vs. low-cost physical labs: what engineering students think.

2021 ◽  
Author(s):  
Nina Slamnik-Krijestorac ◽  
Raf Van den Langenbergh ◽  
Thomas Huybrechts ◽  
Sergio Martin Gutierrez ◽  
Manuel Castro Gil ◽  
...  
Keyword(s):  
Engineering Students ◽  
Low Cost ◽  
Virtual Labs

Human-Centered and Psychological Concepts in Undergraduate Engineering Project Documentation

2020 ◽  
Vol 64 (1) ◽  
pp. 505-509
Author(s):  
Rod D. Roscoe ◽  
Samuel T. Arnold ◽  
Chelsea K. Johnson
Keyword(s):  
Engineering Students ◽  
Engineering Project ◽  
Design Processes ◽  
Undergraduate Engineering ◽  
Project Documentation ◽  
And Behaviors ◽  
Psychological Concepts

The success of engineering and design is facilitated by a working understanding of human thoughts, feelings, and behaviors. In this study, we explored how undergraduate engineering students included such human-centered and psychological concepts in their project documentation. Although, we observed a range of concepts related to design processes, teams, cognition, and motivation, these concepts appeared infrequently and superficially. We discuss how this analysis and approach may help to identify topics that could be leveraged for future human-centered engineering instruction.

Microbial-Induced Mineralization of Zinc Ions Based on the Degradation of Toluene and Its Characterization

2021 ◽  
Vol 13 (4) ◽  
pp. 656-661
Author(s):  
Yiyan Lv ◽  
Qiwei Zhan ◽  
Xiaoniu Yu
Keyword(s):  
Particle Size ◽  
Phase Composition ◽  
Surface Morphology ◽  
Organic Compounds ◽  
Low Cost ◽  
Zinc Ion ◽  
Zinc Ions ◽  
Quick Response ◽  
Zinc Carbonate ◽  
Carbonate Ions

Microbial-induced degradation of aromatic organic compounds and mineralization of zinc ions have attracted much attention because of its low cost, simple operation and quick response. This research, toluene was decomposed and made the concentration of carbonate ions increased accordingly by the enzymatic pressing of microorganisms, meanwhile carbonate ions mineralized zinc ions into carbonate precipitations. The composition and microstructure were analyzed systematically. The analysis results indicated that carbonate precipitations, basic zinc carbonate, could be successfully prepared by microbial method. The particle size of basic zinc carbonate was nanometer, and its shape was near-spherical. Furthermore, the phase composition, functional groups and surface morphology of the precipitations prepared by different methods were basically the same. This work provided a new method for remediation of zinc ion pollution based on the degradation of toluene.

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