scholarly journals Measurement Data Collection Device Based on ESP32 for Digital Laboratory

2021 ◽  
Vol 4 (4) ◽  
Author(s):  
Ivan A. Khyzhniak

The potential use of digital laboratories is constantly growing every year, as such a device allows you to conduct research in such fields as biology, physics, chemistry and other natural sciences. It is proved that the use of modern equipment increases the efficiency of laboratory classes in schools. Today, there are a large number of educational digital laboratories, which find many areas of use, from laboratory work at school to laboratories at universities. However, if you analyze these digital labs, you can see that they do not have a user-friendly interface and settings. The purpose of this work is to review existing solutions, as well as find solutions to create an improved version of digital training laboratories. The main disadvantage of existing solutions is the lack of data transfer via Wi-Fi or Bluetooth, as well as connection to a computer or smartphone, which could significantly improve the process of working with such a device. One of the solutions to this problem is the creation of digital training laboratories based on the ESP-32 microcontroller. After analyzing the existing digital laboratories, we can conclude that this area needs improvement, as existing technologies allow to create much better devices in terms of ease of use and opportunities for educational purposes. Bluetooth and Wi-Fi are the main elements, the addition of which will significantly improve digital laboratories. One such solution is the ESP-32 microcontroller, as it includes these modules, and its technical characteristics allow you to create a device that will collect data simultaneously from many connected sensors. The creation of a digital laboratory with such characteristics will significantly improve the process of laboratory work in schools and universities, as well as allow more organized distance learning online, which will have a positive impact on the educational process in schools and universities.

2021 ◽  
Vol 5 (1) ◽  
pp. 145
Author(s):  
Nicholas Wilson ◽  
Meilisa Alvita ◽  
Jensen Wibisono

Penelitian ini dilakukan guna mengetahui bagaimana pengaruh Perceived Ease of Use dan Perceived Security terhadap Customer Satisfaction dan Repurchase Intention pada sektor B2C E-Commerce di Indonesia. Penelitian ini menggunakan metode survei, dimana, kuesioner dipilih sebagai metode untuk mengumpulkan data yang diperlukan pada penelitian ini. Sebanyak 250 responden berpartisipasi pada penelitian ini, dimana, dari 250 data yang terkumpul, sebanyak 226 data dinyatakan Valid dan Reliable, sehingga dapat digunakan untuk selanjutnya diproses pada penelitian ini. Data yang telah dinyatakan Valid dan Reliable selanjutnya akan dianalisa dengan metode PLS-SEM. Berdasarkan hasil analisis data yang telah dilakukan, peneliti dapat menyimpulkan bahwa Perceived Ease of Use dan Perceived Security terhadap Customer Satisfaction dan Repurchase Intention pada sektor B2C E-Commerce di Indonesia. Adapun hasil dari penelitian ini menunjukkan bahwa penting bagi setiap perusahaan B2C E-Commerce di Indonesia di dalam menciptakan suatu sistem e-commerce yang aman yang mampu melindungi para pembeli serta penjual dari kemungkinan akan munculnya kasus pencurian data ketika kedua belah pihak melakukan transaksi pembelian dan penjualan pada laman e-commerce yang dikembangkan oleh perusahaan. Selain itu juga, hasil yang diperoleh pada penelitian ini juga menunjukkan bahwa penting bagi perusahaan B2C E-Commerce di Indonesia untuk dapat mengembangkan serta menciptakan serta mengimplementasikan sistem yang bukan hanya akan membuat konsumen dapat secara cepat mempelajari sistem tersebut, namun juga guna mengurangi ataupun menghilangkan kemungkinan dari munculnya kebingungan ataupun kesulitan yang konsumen alami ketika mengakses laman E-Commerce yang dikembangkan oleh pihak perusahaan. This study was commenced in order to assess whether or not both Perceived Ease of Use and Perceived Security positively affect Customer Satisfaction and Repurchase Intention in the B2C E-Commerce sector in Indonesia. This research implement survey method, in which questionnaires were chose as the tools which will be used to collect all of the data needed for the completion of this study. A total of 250 respondents participated in this study, in which a total of 226 valid, reliable and usable data were further analyzed using PLS-SEM method in order to generate the results and findings required to complete this study. Based on the results of the data analyses, authors would like to conclude that both Perceived Ease of Use and Perceived Security have a significant and positive impact toward Customer Satisfaction and Repurchase Intention both in a direct and indirect manner in the B2C E-Commerce sector in Indonesia. The results obtained in this study underlined the importance of building a safe and secure system by any B2C E-Commerce companies in Indonesia, in which such system will protect both the buyers and the sellers from the possibility of getting their data stolen by irresponsible parties while both the buyers and the sellers are conducting business transacations through the website. Furthermore, the results generated in this study also underline the importance of establishing and developing a user-friendly and effective e-commerce system, which not only will make it easier and faster for the users to learn about the new system installed or implemented on the website, but also will reduce or eliminate any difficulties or confusion which consumers might felt while using the systems implemented by the companies.


2019 ◽  
Vol 70 (2) ◽  
pp. 141
Author(s):  
Liudmyla P. Sukhovirska ◽  
Olha M. Lunhol ◽  
Oksana V. Zadorozhna

The article substantiates expediency and shows the possibility of computer modeling of laboratory works on medical and biological physics for students in the field of training 1201 «Medicine» in the study of the discipline «Medical and Biological Physics». On the example of the laboratory work «Study of the fundamentals of hemodynamics using the apparatus «Perfusion System SORIN C5», the main stages and principles of the creation of virtual laboratory works for institutions of higher medical education were determined. The authors analyze the scientific and methodical literature on the use of specialized software products for reproduction and demonstration of various physical phenomena, the development of virtual laboratories and their implementation in the educational process of higher education institutions. The paper proposes methodical recommendations for the creation of virtual laboratory work in the classes on medical and biological physics for students in the field of training 1201 «Medicine». The article describes the main structural units (menus and submenus), the characteristics and possibilities of using the software developed by the authors in the educational process, which virtually realizes the main stages of the patient's preparation for open heart surgery using the heart-lung machine SORIN C5. The advantages of conducting virtual laboratory works on hemodynamics have been determined, as well as an analysis of educational material with the aim of improving the professional component of medical students' training and their informational and subject competencies. The possibilities of creation a series of laboratory works with their subsequent placement in the virtual learning environment «System of medical and biological physics laboratory works» are considered. Thanks to the leadership of the Municipal Institution «Regional Cardiology Center» (Kropyvnytskyi) for the assistance and provision of information on the work of the apparatus «Perfusion System SORIN C5».


2020 ◽  
Vol 3 (2) ◽  
pp. 45-50
Author(s):  
Artur Borcuch

Payments are an inherent element of economic activity (León and Ortega 2018). However, the evolution of payment instruments and the way individuals and businesses make daily payments has undergone enormous change in human history, particularly due to main innovations in payment systems in last decades (Gandhi 2016). The last innovation in payment system concerns mobile payment. The development of mobile payments market can have a positive impact on economic growth (Leon and Rodriguez 2012). Although the Polish market of mobile payments is in the initial phase of development, it is one of the pioneering and leading in Europe and globally. The main purpose of this article is to analyze, which feature (convenience, speed, availability, ease of use, safety) of mobile payments could be the most important for users from Poland.


2021 ◽  
Vol 30 (12) ◽  
pp. S22-S29
Author(s):  
Gillian O'Brien ◽  
Patricia White

Background: Lower limb cellulitis poses a significant burden for the Irish healthcare system. Accurate diagnosis is difficult, with a lack of validated evidence-based tools and treatment guidelines, and difficulties distinguishing cellulitis from its imitators. It has been suggested that around 30% of suspected lower limb cellulitis is misdiagnosed. An audit of 132 patients between May 2017 and May 2018 identified a pattern of misdiagnosis in approximately 34% of this cohort. Objective: The aim of this pilot project was to develop a streamlined service for those presenting to the emergency department with red legs/suspected cellulitis, through introduction of the ‘Red Leg RATED’ tool for clinicians. Method: The tool was developed and introduced to emergency department clinicians. Individuals (n=24) presenting with suspected cellulitis over 4 weeks in 2018 were invited to participate in data gathering. Finally, clinician questionnaire feedback regarding the tool was evaluated. Results: Fourteen participants consented, 6 female and 8 male with mean age of 65 years. The tool identified 50% (n=7) as having cellulitis, of those 57% (n=4) required admission, 43% (n=3) were discharged. The remainder who did not have cellulitis (n=7) were discharged. Before introduction of the tool, all would typically have been admitted to hospital for further assessment and management of suspected lower limb cellulitis. Overall, 72% (n=10) of patients who initially presented with suspected cellulitis were discharged, suggesting positive impact of the tool. Clinician feedback suggested all were satisfied with the tool and contents. Conclusion: The Red Leg RATED tool is user friendly and impacts positively on diagnosis treatment and discharge. Further evaluation is warranted.


2021 ◽  
Vol 13 (12) ◽  
pp. 6627
Author(s):  
Shichao Sun ◽  
Yuanqian Liu ◽  
Yukun Yao ◽  
Zhengyu Duan ◽  
Xiaokun Wang

Sustaining the development of car-sharing is considered an efficient way to counter environmental issues worldwide. Against this background, college students are recognized as a promising customer group of car-sharing service providers in China. However, the determinants that promote students’ willingness to use car-sharing services are rarely studied, and the uniqueness of college students in China in the context of car-sharing is justified. Therefore, this paper examines the key factors that affect Chinese college students’ adoption of car-sharing. An empirical study using samples from Dalian Maritime University was conducted, and survey data were collected via the Internet. Specifically, respondents’ socio-demographics were obtained, and their latent attitudes on car-sharing services were measured in terms of willingness to use car-sharing services, perceived usefulness, perceived ease of use and safety concerns. In addition, nine hypothetical travel scenarios were defined, and regarding each travel scenario, the respondents were asked to state whether they were willing or not to use car-sharing services. On this basis, a hybrid logit model was established to investigate the key factors that influenced the willingness to use car-sharing services. Aside from the common findings in line with previous studies, the results indicate that with the increase in the number of travel fellows, willingness to use car-sharing services went up. Furthermore, college students’ willingness to use car-sharing services was significantly affected by money costs rather than time costs. Additionally, college students in China are more likely to use car-sharing services during workday off-peak hours and weekends. Separately, among the respondents’ latent attitudes, only the perceived usefulness of car-sharing services was found to have a significant and positive impact on students’ willingness to use them. Relevant policy implications with regards to theoretical findings are also offered in this paper to car-sharing service providers in China.


2021 ◽  
Vol 13 (15) ◽  
pp. 8394
Author(s):  
Tsen-Yao Chang ◽  
Yu-Chieh Chiu

Taiwan began to implement a new high school syllabus nationwide, in 2019. The Ministry of Education has also established a high school student Academic Portfolio System (APS) to collect the learning process of high school students for future university admissions references. However, during this period, high school students and their parents had many opinions on the implementation of the new system. There were even groups of students protesting. The main purpose of this research is to explore the factors that affect the system usage intentions of high school students. Based on the theory of reasoned action (TRA) and the technology acceptance model (TAM), this research established a research model. The research variables include system interface design, usefulness, ease of use, attitude, subjective norms, and usage intentions. A total of 712 questionnaires were collected from high school students in northern Taiwan. Data analysis is carried out in three stages: descriptive analysis, measurement model verification, and structural equation modeling. The results of the study found that system interface design has a significant impact on the perceived ease of use. Factors such as ease of use, usefulness, attitude, and subjective norms also have a significant positive impact on usage intention; ease of use and usefulness positively affect attitudes toward using. Finally, according to the results, some practical implications were proposed for implementation references from the perspectives of education authority, high schools, teachers, and students.


Author(s):  
Kingsley Okoye ◽  
Arturo Arrona-Palacios ◽  
Claudia Camacho-Zuñiga ◽  
Nisrine Hammout ◽  
Emilia Luttmann Nakamura ◽  
...  

AbstractToday, modern educational models are concerned with the development of the teacher-student experience and the potential opportunities it presents. User-centric analyses are useful both in terms of the socio-technical perspective on data usage within the educational domain and the positive impact that data-driven methods have. Moreover, the use of information and communication technologies (ICT) in education and process innovation has emerged due to the strategic perspectives and the process monitoring that have shown to be missing within the traditional education curricula. This study shows that there is an unprecedented increase in the amount of text-based data in different activities within the educational processes, which can be leveraged to provide useful strategic intelligence and improvement insights. Educators can apply the resultant methods and technologies, process innovations, and contextual-based information for ample support and monitoring of the teaching-learning processes and decision making. To this effect, this paper proposes an Educational Process and Data Mining (EPDM) model that leverages the perspectives or opinions of the students to provide useful information that can be used to enhance the end-to-end processes within the educational domain. Theoretically, this study applies the model to determine how the students evaluate their teachers by considering the gender of the teachers. We analyzed the underlying patterns and determined the emotional valence of the students based on their comments in the Students Evaluation of Teaching (SET). Thus, this work implements the proposed EPDM model using SET comments captured in a setting of higher education.


2021 ◽  
Vol 11 (5) ◽  
pp. 249
Author(s):  
Chun-Hsiung Huang

This research explores the influencing factors of learning satisfaction in blended learning. Three dimensions are proposed: perceived usefulness, perceived ease of use, and learning motivation. It studied how these variables affect students’ learning satisfaction. The research hypotheses are: (1) Perceived ease of use positively affects perceived usefulness; (2) Perceived usefulness and perceived ease of use will have a positive effect on learning motivation; (3) Learning motivation positively affects learning satisfaction; (4) Perceived usefulness has a positive intermediary effect on the relationship between perceived ease of use and learning motivation. Participants included 173 freshmen who took the first-year interactive game design course at Ling Tung University in Taichung, Taiwan. The questionnaire survey method is applied in this research to analyze the relationship between the variables and verify the hypothesis based on the collected 173 valid questionnaires. The partial least square method structural equation model (PLS-SEM) is used to carry out structural equation modeling to study the relationship between latent variables. It explains that the perceived ease of use affects the perceived usefulness. Perceived usefulness and perceived ease of use have a positive impact on learning motivation. Learning motivation has a positive impact on learning satisfaction. Perceived usefulness as an intermediary factor of perceived ease of use has an indirect impact on learning motivation. The contribution of this research is to provide empirical evidence and explain what factors may affect learning satisfaction. Some other related factors that may affect learning satisfaction should be taken as the factors that teachers should pay attention to when implementing blended learning.


2018 ◽  
Vol 8 (3) ◽  
pp. 55
Author(s):  
Ibrahim Alshamaileh ◽  
Fouad Sheikh Salem

This study aims to measure the impact of facilities provided by King Hussein Business Park on investment promotion. King Hussein Business Park has reached 100% occupancy rate, with a crucial plan for expansion to over 1.4 million m2 of land. The problem of the study lies on how King Hussein Business Park will attract additional investments to occupy the spaces targeted for expansion. Results of the study reveal a significant positive impact of the facilities on investment promotion. The robust infrastructure, complementary services, and investment law benefits influence the creation of attractive business environment for investments. These findings show that countries with scarce resources face many challenges in promoting investment either locally or internationally, and they must improve their business climate for investment promotion. Governments also have the means to make conducting the businesses and projects easier for people.


2021 ◽  
Vol 93 ◽  
pp. 164-171
Author(s):  
V. V. Kuzmin ◽  
◽  
V. N. Mikhalkin ◽  
P. V. Komrakov ◽  
A. I. Karnyushkin ◽  
...  

Introduction. In accordance with the provisions GOST 12.1.044-89 (ISO 4589-84) (Fire and Explosion hazard substances and materials. Nomenclature of indicators and metods of their determination) one of the important parameters of liquid combustion are the mass rate of liquid burnout and the influence of various conditions of the combustion process on the mass burnup rate. A laboratory method for determining the mass burnout rate of a combustible liquid has been developed. Goals and objectives. The aim of the study is to develop a laboratory method for determining the mass rate of liquid burn-up, which can be used in the educational process during laboratory work and to simulate the effect of combustion conditions on the mass rate of liquid burn-up. Methods. To implement this task, we used video recording of changes in the mass of the liquid during its combustion in vessels of different diameters, followed by graphical processing of the results of experiments for calculate the burn-up rate under different combustion conditions. Results and discussion. The method was tested on the example of the combustion of acetone. An example of computer-graphical result for calculating the mass rate of acetone burn-up is given. The empirical dependents of the acetone burn-up rate on the diameter of the liquid surface area is obtained. Conclusions. A laboratory method for determining the mass rate of burnout of a flammable liquid, which can be used in the educational process during laboratory work, has been developed. In contrast to GOST 12.1.044-89 (ISO 4589-84), the developed method can use vessels with a liquid diameter of more than 60 mm. Keywords: burnout rate, acetone, laboratory technique


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