Google Chrome Research Articles

Design and implement a new mechanism for audio, video and screen recording based on WebRTC technology

Many years ago, Flash was essential in browsers to interact with the user media devices, such as a microphone and camera. Today, Web Real-Time Communication (WebRTC) technology has come to substitute the flash, so browsers do not need the flash to access media devices or establish their communication. However, WebRTC standards do not express precisely how browsers can record audios, videos or screen instead of describing getUserMedia API that enables a browser to access microphone and camera. The prime objective of this research is to create a new WebRTC recording mechanism to record audios, videos, and screen using Google Chrome, Firefox, and Opera. This experiment applied through Ethernet and Wireless of the Internet and 4G networks. Also, the recording mechanism of this research was obtained based on JavaScript Library for audio, video, screen (2D and 3D animation) recording. Besides, different audio and video codecs in Chrome, Firefox and Opera were utilised, such as VP8, VP9, and H264 for video, and Opus codec for audio. Not only but also, various bitrates (100 bytes bps, 1 Kbps, 100 Kbps, 1 MB bps, and 1 GB bps), different resolutions (1080p, 720p, 480p, and HD (3840* 2160)), and various frame-rates (fps) 5, 15, 24, 30 and 60 were considered and tested. Besides, an evaluation of recording mechanism, Quality of Experience (QoE) through actual users, resources, such as CPU performance was also done. In this paper, a novel implementation was accomplished over different networks, different browsers, various audio and video codecs, many peers, opening one or multi browsers at the same time, keep the streaming active as much as the user needs, save the record, using only audio and/or video recording as conferencing with full screen, etc.

Technologies of improving the university efficiency by using artificial intelligence: motivational aspect

The aim of this study was to identify the most appropriate technologies to improve the university efficiency by using the motivational artificial intelligence (AI). Methods of the study were as follows: the questionnaire survey by using the Google Chrome electronic service, content analysis, methods of statistical analysis, and a focus group. The authors’ version of the questionnaire was made by using the Likert methodology taking into account indicators of the QS World University Rankings rating system. The data obtained during the three stages were generalized and analyzed by using the descriptive statistics. The regression analysis was used to study the relationship between the motives of the academic staff (AS) and the nature of the stimulating effect of the university authorities on the staff of the university. Results: The discrepancy between the AS motivation structure and the range of stimulation methods applied by the university authorities, a continuous increase in the burden from introduced innovations, and the formal style for employees to fulfill new tasks have been revealed. The analysis of the results on using the techniques and methods by the university authorities to motivate and stimulate the staff has shown the need in new combinatorics, an innovative system that harmoniously combines the advantages of natural and artificial intelligence to motivate the AS in training HR for the digital economy of the 21st century. The new system should be universal and flexibly respond to constant changes in the socio-economic environment. It is important to timely eliminate the contradictions in needs and teachers’ opinion on the ideal assessment system of their activities and offered forms of stimulation by universities authorities. The vectors of their activities must be constantly coordinated, based on the AI capabilities. The introduction of AI in the activities of universities improves the competitiveness of promising, innovative teachers and has positive impact on the image, efficiency, academic reputation, and citation index of universities. The authors for the first time ever have studied the problems of using the AI in the motivational system of the university’s AS and offered technologies to improve the efficiency of universities by using the motivational AI. The practical importance of solving the problem is related to the real possibility of applying the offered technologies by the university authorities that strive to improve their efficiency and competitiveness in the educational market. The main advantage of the work is related to the advanced solutions of the emerging problems on using the AI in motivating the university staff identified during the three-stage study. The interdisciplinary nature of the study and the offered technologies can serve as the basis for the further study and an additional element that expands the views, approaches, and the framework of categories and concepts of the world science. Conclusion: The most suitable technologies for the university that strives to be efficient include the elimination of the imbalance in the system of staff motives – incentives of the university (employer) authorities, the harmonious use of the AI in educational activities and the system of motivation and stimulation of staff where the natural intelligence prevails, and the improvement of the staff’s publication and grant activities by using the AI with a synergistic effect due to efficient team building.

Development of remote laboratory based on HTML5

The Laboratory is an important of means for engineering students and the researchers to do various kinds of experiments. Amount of equipment and time to be able to access the laboratory is limited. therefore, in this research developed of remote labs that can be accessed via web anytime and anywhere as long as available internet network. This is in line with the development of Industry 4.0 which introduces cyber physical technology based on internet or wireless network. This technology is not only used for communication but also includes controls and remote control. The results of this research showing the remote lab can be accessed by web via internet and via localhost and compatible with web browser as google chrome, Mozilla, opera etc.

How to party with Netflix

Netflix Party or Teleparty is a Google Chrome extension that allows you to watch Netflix remotely with friends - or, as a Netflix ad puts it, “movie nights with that long-distance special someone”. It promises synchronised video playback and group chat. From a cyber-security angle, Netflix Party's Chrome plug-in used to be open-source until it was maintained privately. This means it made the code more transparent. While one doesn't always know who contributed to the codebase there is a common supervisory element that could help to avoid malicious code. However, Chrome plug-ins have been used in the past by attackers to infect users' systems with malicious software. One piece of advice is not to use your corporate laptops to host Netflix Parties. A VPN generally helps, too - not so much with an encrypted IP address, but to watch the same movies with friends from other countries.

Analisis Komparasi Implementasi Steganografi White-Space dan White-Space Modified pada Artikel Terenkripsi AES dalam HTML5

The level of internet usage continues to increase until now. information exchange requires security that cannot be predicted by others. one technique for securing information is steganography. Steganography techniques are the science and art of hiding information. This technique can hide the content of information in media that cannot be guessed by ordinary people, so as not to arouse suspicion of the people who see it. One of the media that can implement the white-space modified steganography method is HTML pages. in addition, AES (Advanced Encryption Standard) is a lighter encryption security algorithm compared to other algorithms. In this study, plain text that has been encrypted into cipher text is then inserted with white-space and white-space modification steganography techniques. Data changes have occurred but only less than 1 percent. In experiments that have been implemented on Google Chrome and Mozilla Firefox are the same except in Internet Explorer, which changes the data slightly larger. The implementation of AES encryption and stegano white-space original, has 100% success but the 80% decryption process is successful, but the decryption results contain additional binaries. This happen because the use of tabulation (tabs) instead of spaces in HTML5 articles, and this is often found in HTML articles. while the implementation of AES encryption and stegano whitespace modified, has a success of 100% and the decryption process of 90% succeeded without any changes. 1 article failed because the number of articles is too small compared to the amount of space provided. The conclusion that implementation of AES encryption and white-space modified is more appropriate to be implemented in HTML5 articles, and than the use of tabulation and the number of characters also consequences on the implementation. Keywords : Information, Steganography, White - space modified, Security, AES, Web Browser

A Web-based Support System to Measure Fielding Performance in Cricket

This article looks at the implementation of a web-based support system for measuring the fielding performance in cricket using open source technologies. Front-end has been developed using HTML, CSS and JavaScript. The back-end uses MySQL as the database for storing fielding related data. PHP is used to interact with the MySQL database. The web-based support system which is named Field-o-meter can be used to record fielding data, display fielding data, compute fielding performance measure and generate reports. The system has facilities for different categories of users, viz., administrators, data entry operators and viewers. Users need to login to access the system. Data can be added, deleted, displayed and also edited with certain restrictions. Analysis reports may be viewed online. Fielding data can be downloaded in xls (MS Excel) format. Being an online system hosted on a web server, it can be accessed from anywhere with an Internet connection. The web-based support system is easy to use with a simply designed interface. The system’s interface gets adjusted to mobile devices and as such can be used with a mobile browser. The system has been tested successfully for all the leading web browsers—Google Chrome, Firefox, Microsoft Edge, Opera and Safari.

Development of a Technology for Automation of Work with Sources of Information on the Internet

The article describes the technology for automation of work with sources of information on the Internet. The created technology includes a development of a web service for storing and processing data; creation of a client part for viewing, editing and deleting records from the service; development of a browser extension for instant addition of articles to a web service database. Addition of records to the service is implemented by the development of an extension to Google Chrome browser. Creation of an extension involves getting information about the author of the article, the title of the article, addresses, key expressions, and highlighted text. Regular expressions and recursive search are used to obtain information about the author of the text. The article offers algorithms for finding the name of a literary source and its author. In order to allow the web service to interact with other services or programs, a REST service was developed in the article. A graphical user interface to display and edit records was developed for the web service using the AngularJS JavaScript framework. For the client part, a mechanism of an on request citations search and a mechanism of reference list formation for the selected citations is proposed. For the on request citations search, the article suggests the algorithm of citations ranking. Appropriate plugins for Google Chrome have been developed, which allow to connect content levels, background, and pop-up with each other. Functions for authorization, receiving a token, information search launch, search for an author, and a bibliographic record creation have been created.

P95 “Why do we have to lose this too?”: an exploration into the conversations around intimacy that individuals with Sjögren's syndrome have on an online forum

Abstract Background Sjögren’s syndrome (SS) is an autoimmune disease that predominantly affects women (by a ratio of 9:1), and age at onset is typically between 40-60 years. Symptoms of dryness of the vagina and vulva can cause painful sexual intercourse and can result in diminished levels of sexual arousal and desire. This can lead to a lack of understanding by their partner, which can place an immense strain on their relationship. Furthermore, intimacy issues can be a particularly sensitive subject and often go undiscussed, even between partners, which can leave them feeling isolated and without an adequate support network. Many patient groups turn to online support forums and use these sites to discuss sensitive issues under the cloak of anonymity. Analysing this source of data allows us to explore the conversations pertaining to intimacy issues that individuals with SS may not feel comfortable discussing in person. Methods The forum data was scraped using the automated Web Scraper tool, accessed from the developer tools within Google Chrome. The Computer-Assisted Qualitative Data Analysis (CAQDAS) software tool ATLAS.ti was used to facilitate the data analysis process. The process of analysis was conducted in accordance with both Braun and Clarke’s Thematic Analysis (TA) framework and Freise, Sorrato and Pires guidelines for applying the phases of TA within the ATLAS.ti software. Results A total of 3,557 posts were identified as being pertinent to the topic of intimacy. Conversations were centred around the lack of sexual activity with their partners, with users revealing they had been abstaining for years as a result of vaginal dryness, dyspareunia, fatigue and widespread pain. Numerous users discussed being unable to engage in intimate activities like handholding and hugging due to allodynia and issues with temperature regulation, as well as refraining from kissing as they perceived others kisses to be too wet and sloppy. One conversation theme was centred around increased cognitive effort and behaviour changes, with many users revealing that they plan sexual activity around symptoms, regularly implement self-management strategies before, during, and after sexual activity, and use smaller gestures to show emotion. There was also a body of conversation focused around the emotional impacts of sexual dysfunction with users unanimously discussing their experience with feelings of guilt, burden, fear of intimacy and pain, and saudade - a deep emotional state of longing for the past and their previous selves. Conclusion Individuals with SS experience alterations in their sexual activity and relationship dynamics, with symptoms of vaginal dryness, fatigue and pain being discussed as the most debilitating of symptoms. Disclosures J.L. McCready None. K. McCarty None. V. Deary None. T.L. Collins None. K.L. Hackett None.

Readability analysis of online health information on preexposure prophylaxis (PrEP)

ObjectivesWhen considering PreExposure Prophylaxis (PrEP) as a HIV prevention method, many rely on information available online. Limited research has examined the quality, including readability, of PrEP information on the Internet. The current study evaluates the readability of PrEP information online employing six commonly used readability tests. Study designThis is a cross-sectional study. MethodsUsing the Google Chrome browser, a search for articles was conducted using two terms: “pre-exposure prophylaxis” and “Truvada.” The URLs of the first 50 English language websites for each term were recorded to create the overall study sample of 100 unique websites. Using six established readability scales, we determined the readability scores for each examined website. Websites were stratified by .com, .org, and .gov URL extensions to compare readability metrics. ResultsMean Flesch-Kincaid Grade Level (FKGL) was 9.5 (SD = 2.2), mean Gunning Fog Index (GFI) was 11.1 (SD = 2.7), mean Coleman-Liau Index (CLI) was 11.3 (SD = 2.0), while mean Simple Measure of Gobbledygook (SMOG) Grade Level was 12.1 (SD = 1.8). Using Flesch-Kincaid Reading Ease (FRE), one article was found easy to read, while 23 were found of average difficulty to read. Mean New Dale-Chall (NDS) score was 7.3 (SD = 1.3), or grade 9–10. Mean reading levels were significantly different among the commercial, organization, and government sites, however, no category was at the recommended sixth-grade level. ConclusionsPrEP information online surpasses the reading ability of most U.S. adults. Improving the readability of PrEP information online may help to increase uptake of PrEP among populations at risk for HIV.

743 Keeping up with Dr. Google: When Are Patients Seeking First-aid Burn Resources?

Abstract Introduction Treating burns is a relatively common occurrence in American Emergency Departments occurring an estimated 486,000 times per year. In the digital era, patients feel increasingly empowered to seek out medical resources independently. The true number of people sustaining an injury and treating themselves at home or outside of the hospital setting is difficult to quantify. However, we can see when patients were searching for first-aid burn resources on the world’s most powerful and popular search engine - Google. We hypothesized that there would be a correlation between patient’s searching for burn care resources online and burn admissions. Methods We used Keywords Everywhere a browser add-on for Google Chrome to cross check various phrases and words that Americans might search for to find information on how to treat a burn. “Burn treatment” was found to be the most commonly searched phrase and this was verified using Google Trends. Google Trends dose not give raw search numbers. However, it expresses the search frequency for a term relative to how frequently that term was sought out during a specified time period. We pulled search data for each successive year back till 2006 the earliest year for which complete data was available. We were then able to overlay this data on a year to year basis and thus view when information about treating burns was the most sought out. Results A clear increase in the frequency of searches for burn treatment can be seen around the summer months, peaking in the week surrounding the 4th of July. Further data comparing this trend to burn admissions is forthcoming as data is being solicited. Conclusions Americans are searching for more resources regarding burn injuries in the summer months; and especially in the days surrounding the fourth of July. We are excited to correlate this data to burn admissions. If there is an inverse relationship between admissions during the summer months and number of inquiries made via Google for acute burn care, this may suggest that many of the burns are minor. Thus, being treated through our clinics or through third-party providers. Alternatively, the patients may be treating themselves using internet resources. If this proves to be the case, there may be an opportunity to enrich online resources for our patients. Applicability of Research to Practice Once the data processing is complete, there will be an indication if the number of people seeking out resources via Google Search Engine correlates with out burn admissions. If not, this may be an opportunity for improvement to enrich burn first-aid resources available online.

BigTop: a three-dimensional virtual reality tool for GWAS visualization

BackgroundGenome-wide association studies (GWAS) are typically visualized using a two-dimensional Manhattan plot, displaying chromosomal location of SNPs along the x-axis and the negative log-10 of their p-value on the y-axis. This traditional plot provides a broad overview of the results, but offers little opportunity for interaction or expansion of specific regions, and is unable to show additional dimensions of the dataset.ResultsWe created BigTop, a visualization framework in virtual reality (VR), designed to render a Manhattan plot in three dimensions, wrapping the graph around the user in a simulated cylindrical room. BigTop uses the z-axis to display minor allele frequency of each SNP, allowing for the identification of allelic variants of genes. BigTop also offers additional interactivity, allowing users to select any individual SNP and receive expanded information, including SNP name, exact values, and gene location, if applicable. BigTop is built in JavaScript using the React and A-Frame frameworks, and can be rendered using commercially available VR headsets or in a two-dimensional web browser such as Google Chrome. Data is read into BigTop in JSON format, and can be provided as either JSON or a tab-separated text file.ConclusionsUsing additional dimensions and interactivity options offered through VR, we provide a new, interactive, three-dimensional representation of the traditional Manhattan plot for displaying and exploring GWAS data.

Readability of Cancer Clinical Trials Websites.

Clinical trials are critically important for the development of new cancer treatments. According to recent estimates, however, clinical trial enrollment is only about 8%. Lack of patient understanding or awareness of clinical trials is one reason for the low rate of participation. The purpose of this observational study was to evaluate the readability of cancer clinical trial websites designed to educate the general public and patients about clinical trials. Nearly 90% of Americans use Google to search for health-related information. We conducted a Google Chrome Incognito search in 2018 using the keywords “cancer clinical trial” and “cancer clinical trials.” Content of the 100 cancer clinical trial websites was analyzed using an online readability panel consisting of Flesch-Kincaid Grade Level, Flesch Reading Ease, Gunning-Fog Index, Coleman-Liau Index, and Simple Measure of Gobbledygook scales. Reading level difficulty was assessed and compared between commercial versus non-commercial URL extensions. Content readability was found to be “difficult” (10.7 grade level). No significant difference in readability, overall, and between commercial and non-commercial URL extensions was found using 4/5 measures of readability; 90.9% of commercial versus 49.4% of non-commercial websites were written at a >10th grade (P = .013) using Gunning-Fog Index. Written cancer clinical trials content on the Internet is written at a reading level beyond the literacy capabilities of the average American reader. Improving readability to accommodate readers with basic literacy skills will provide an opportunity for greater comprehension that could potentially result in higher rates of clinical trial enrollment.

Use of Smartphones by Research Scholars in Enhancing Digital Information Literacy Skills: A Study

The usage of smartphones has proliferated in recent years. Smartphones have enabled the users in the academic community to access a wealth of information at any time and at any place. With such an accelerated adoption of smartphones at the touch of the fingertips, the authors in this paper sought to investigate the usage of smartphones by research scholars in University of Mysore, Mysuru for their research and academic purpose. The study brings about the purpose of using smartphones, browsers used to search information in smartphones, mobile applications used for research, advantages and limitations of using smartphones. It was evident from the study that all research scholars used smartphones and were connected to the Internet and nearly 77.17% respondents used smartphones to read books and articles related to their research. The most usedbrowser was Google Chrome (89.67%) and all the respondents (100%) used typed keywords to search for information on smartphones. The reliability of information obtained was checked only by 50% of the respondents. It was also observed that the major benefit for using smartphones was their immediate access to information and the barrier was their screen size. The results from this study reflect the research scholars’ exponential adoption of the smartphone for information access.

Investigation of efficiency of application of machine learning algorithm for classification of internet traffic

The article investigates the effectiveness of the machine learning algorithm for the classification of Internet traffic. The RF algorithm, which works by constructing many decision trees, is considered. The efficiency of the RF algorithm in the problems of application classification in the presence and absence of background network traffic is evaluated. A laboratory network of several computers was set up to collect the data needed for analysis. One of the computers was connected to the World Wide Web and a wireless access point was set up on its base. On the same computer, all the traffic passing through it was captured using Wireshark. Various applications were running on other computers connected to the access point. Web pages were viewed using Google Chrome and Opera browsers, using Skype, video calls were made, files were downloaded using the µTorrent torrent client, the Steam digital game distribution service was used, etc. The obtained data were stored in the PCAP format. To bring the obtained data in line with the requirements of the problem, the data was pre-processed. In the experiment, a random forest was constructed and the quality of classification on a given sample was assessed. The most acceptable parameters of the algorithm were selected experimentally. It is experimentally chosen that the forest consists of 5 trees with the maximum possible depth. The algorithm is most effective for data related to DNS traffic. In addition to checking the operation of the algorithm on the test sample, which has the same class composition as the training, the assessment of its quality was also carried out in the presence of background traffic, i.e. in the test sample there were copies of classes absent in the training sample.

SISTEM PENUNJANG KEPUTUSAN PEMILIHAN KARYAWAN DENGAN MENGGUNAKAN ANALYTICAL HIERARCHY PROCESS

Decision support systems are made to facilitate users in determining a decision that will be made with the help of a system. The purpose of this study is to facilitate Porence owner in selecting prospective teachers who want to apply as a teacher at Porence. Porence is a course institution engaged in English education. Data collection for this system is collected by using interviews with Porence owner. This system uses the Analytical Hierarchy Process method to determine the decisions made. This system is implemented in the form of a website so as to facilitate program accessibility by using a common browser such as Google Chrome and Mozilla Firefox. The results of the Analytical Hierarchy Process-based Decision Support system are displayed directly to the Porence owner after the data entered has met the standard method used. The results of the decision support system can be used to provide recommendations to applicants who can be accepted and who will be considered.

ДИДАКТИЧНІ МОЖЛИВОСТІ ІНТЕРНЕТ-СЕРВІСУ GEOBOARD НА УРОКАХ МАТЕМАТИКИ В ПОЧАТКОВІЙ ШКОЛІ

The present article deals with the idea of information and communication technologies, game technologies and is about basic possibilities of using GEOBOARD Internet service for studying Mathematics in elementary school. The scientific approaches to the concept of information and communication technologies, game technologies are described and the potential possibilities of using the GEOBOARD Internet service in elementary education as an option of educational technologies, the influence of the GEOBOARD Internet service on the development of primary school students, advantages and directions of application are analyzed. The important aspect of using GEOBOARD Internet service is the ability to use it both from a personal computer and a Google Chrome web page. Also, users can download the app from the App Store to work with Apple products. The peculiarities of using GEOBOARD Internet service on mathematics lessons are systematization of material, strict logic, the interdisciplinary nature of the service, the learning process systematization, mastering the basics of spatial imagination, mathematical knowledge usage in solving educational, cognitive and educational and practical problems and depiction of geometric shapes. The use of the GEOBOARD Internet service in mathematics lessons promotes the complex development of elementary school children; the formation of a holistic picture of the world, knowledge of the world; the development of constructive skills, spatial relations and spatial thinking, vision of geometric figures, numbers, arithmetic, etc. Working with the GEOBOARD Internet service application allows an elementary school student to learn a lot of important information, prepares students for further study of the geometry course at school and develops their skills of being a socially active, creative person who generates new ideas and makes non-standard decisions. And it all happens in the form of a cognitive game. The GEOBOARD Internet service that is made by The Math Learning Center (MLC) has a wide range of functional and didactic capabilities and will fully meet the needs of elementary school teachers to cover many topics in mathematics lessons. The visualization allows elementary school students to summarize, systematize and discard redundant information just playing a game, so this is the way to improve the educational process. The service is important because it actively involves elementary school students in the process of learning geometric material.

History, Deployment and Service Models Towards the Evolution of Cloud Computing

The network concerned usually, though certainly not always, is the Internet. The sources provisioned cover a stable of services consisting of information, software program, storing, safety, etc. As an example, when we utilize a post including Gmail, enjoy a film on YouTube, shop at Amazon.com, or establishment files making use of DropBox, our team are utilizing cloud-based information (The Google Chrome Group, 2010). Within this phase, we examine the development of Cloud Computing from its own very early roots in mainframe-based computing to the present day and also clarify the different companies provided by Cloud Computing in today's company and also private computing situations. This paper provides an overview of the history, deployment and service models towards the evolution of cloud computing.

Possibilities of conducting XSS-attacks and the development of countermeasures

The article describes the investigation process of the possibilities of XSS–attacks, and the development of counteraction means to these attacks. Researches were determined whether XSS–attack can be fulfilled successfully, and vulnerability detection methods can be applied; were developed the logical and structural diagrams of XSS–vulnerability detection program; were realized program implementation (software) of algorithms for detecting XSS–vulnerabilities on the Web – sites. The software implementation is Web extension for the Google Chrome browser. Main purpose of implementing this software is to confirm or deny the presence of XSS–vulnerabilities on the site, and to counteract the possible attack.

Застосування графів для відображення життєвого циклу сутностей під час розроблення системи опрацювання відгуків безпосередніх користувачів програмних продуктів

Важливою для безпосереднього користувача здатністю будь-якого програмного продукту є гнучкість застосування та налаштування. Проблема, описана та частково досліджена у цій науковій роботі, стосується питання забезпечення цієї гнучкості, а саме – підходів до задавання в межах програмної системи набору станів певної сутності, а також накладення обмеження на множину станів, у які згадана вище сутність може перейти, перебуваючи в одному із них. Тут і далі під правилами переходу сутності в різні стани мають на увазі обмеження множини наступних станів. Оглянуто сучасні системи для керування відгуками до програмного забезпечення, як приклад предметної області зі сутностями, які не мають наперед визначеної множини станів та переходів між ними. Проаналізовано основні переваги та недоліки аналогічних систем та їх підходу до зберігання станів. Наведено приклади та описи можливих станів сутностей та правил їх переходів. Досліджено перспективи застосування теорії графів для вирішення поставленої у статті проблеми. На підставі проведеного дослідження спроектовано архітектуру та реалізовано згідно з нею систему, що складається з мобільного та браузерного (веб-сайт та розширення веб-переглядача Google Chrome) клієнтів. Ціль системи – забезпечити проектні команди легким для освоєння засобом для збирання та оброблення різноманітних відгуків безпосередніх користувачів та зацікавлених сторін. Зокрема, розроблена система дає змогу створювати шаблони відгуків із різними наборами полів та різним типом кожного із них. Результати дослідження застосовано для реалізації функціональності зберігання та опрацювання динамічних станів сутності відгуку в межах розробленої програмної системи. Обґрунтовано вибір інтерфейсного рішення для представлення правил переходів між станами сутності для безпосередніх користувачів. Досліджено та застосовано алгоритм перевірки коректності завдання станів та правил їх переходів.

Blockchain Corda-based IoT-Oriented Information-Sharing System for Agricultural Worker Physical Movement Data with Multiple Sensor Unit

In this study, we attempted to develop and implement a blockchain Corda-based record sharing system for traditional agricultural (agri-) researchers, workers, and their managers. Corda differs from other domain and practical blockchain techniques (e.g., Bitcoin, Ethereum) with respect to its main aims and structural features. Corda-based network systems can transmit and share basic data concerning ledgers at banks or other financial societies and can be handled on common web browsers (e.g., Google Chrome or Microsoft Internet Explorer). This study consists of three phases: (1) designing and confirming the validity of the entire system, (2) constructing and tuning various minor system settings (e.g., programs or networking specifications), and (3) conducting experiments in indoor settings using hoe acceleration data obtained from previous research projects. The integrated system performed with an acceptable level of accuracy. However, it was extremely difficult to quantitatively present the accuracy data. We were unable to concretely show the success and error rates for the data transmitting and receiving, nor the examination operation time. We thus present the specific error content. Overall, the main error trends were (1) errors concerning the rather small transaction time-delay, (2) mistakes concerning the transaction data in the system, and (3) broken transaction data in the system. In particular, we could determine the transaction time delay according to the JavaScript operations and features by observing. We present experimental ranges for these time delays and other error types. Noting concerns concerning previous trials, we suggest practical applications of the proposed system. In short, we believe that our results are novel achievements in the fusion of agricultural informatics, statistics, and human dynamics. We believe that combining this data and other kinds of timeline data with blockchain-based technology and multiple sensors will improve not only agri-business and management, but also agri-skill and security.