2019 Open Innovations (OI)最新文献

{"title":"Biodegradable ReRAM based on chitosan for nonvolatile memory application","authors":"Abiodun Temidayo Fabiyi, S. Vallabhapurapu, Issac O Osunmakinde","doi":"10.1109/OI.2019.8908222","DOIUrl":"https://doi.org/10.1109/OI.2019.8908222","url":null,"abstract":"ReRAM cell based on Silver nano particle incorporated Chitosan nano composite, using a simple spin coating technique. Switching between ON and OFF states were observed at operating voltage as low as 0.23V A high ON/OFF ratio of more than 3 orders was observed in the first cycle. Further, we also observed a multilevel switching from ON state to OFF state in the second cycle, with an ON/OFF ratio of about 5 orders of magnitude at again a switching voltage as low as ~ 0.6V. To understand the switching, we analysed the I-V characteristics in terms of conduction mechanisms. In general the conduction is hopping type just before switching. Particularly in the second cycle, when the switching occurs from LRS to HRS (ON to OFF states), conduction changes from hopping type in On state to Ohmic behavior in the OFF state. This complete change of conduction behavior may be the reason for the observed huge ON/OFF ratio of 5 orders of magnitude. This high ON/OFF ratio is quite encouraging in this Chitosan-Silver nano composite system","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"232 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121072390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Developing an Integration Architecture to Manage Heterogeneous Data by Private Healthcare Practitioners: A Case of Namibia","authors":"I. Shaanika, Monica Nehemia","doi":"10.1109/OI.2019.8908188","DOIUrl":"https://doi.org/10.1109/OI.2019.8908188","url":null,"abstract":"Patients consult different private healthcare practitioners (PHP) due to the uniqueness of their illnesses and need for different specialisation. However, patient’s health records are stored across autonomous systems of these different PHPs, leading to the establishment of heterogeneous health records. Consequently this creates a challenge of information sharing among PHPs. This study argues that these challenges are attributed to the non-integrated healthcare systems among PHPs and thus causing delay in treatment of patients. The study employs multiple case approach, using the semi-structured interview technique to investigate how health records are stored and shared amongst PHPs. The data collected was interpretively analysed to gain better understanding of the manipulation of patient’s health record. According to the study findings, majority of PHP do not invest in IS and information sharing amongst PHPs is conducted manually. Sharing of medical records manually is challenging and is threatened by issues such as data theft and sabotage. In this study, an integrated architecture to guide the management of healthcare heterogeneous data among healthcare practitioners is developed.","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"310 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122781163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance optimization of wireless sensor networks","authors":"T. M. Tshilongamulenzhe, Topside E. Mathonsi, M. Mphahlele, Deon P. DuPlessis","doi":"10.1109/OI.2019.8908209","DOIUrl":"https://doi.org/10.1109/OI.2019.8908209","url":null,"abstract":"The cost-effective Wireless Sensor Networks (WSNs) technologies are implemented in farmers mostly for monitoring or controlling temperature, humidity and pressure. Furthermore, these technologies consists of collections of nodes organized into corporate networks, where each node consists of processing data packets for one or more fries, which may maintain multiples types of functions within a network. However, these technologies experience challenges such as end-to-end delay and packet losses when multiple packets are being transmitted at the same time and on the same channel between the source node and destination node. This leads to poor network throughput and Quality of Services (QoS) in the network. As a result, this paper proposes the design and implementation of an algorithm which reduces end-to-end delay and packet loss in WSNs. NS-2 simulation results showed that the proposed solution can reduce end-tot-end delay and packets loss.","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130362524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Occupational exposure to RF energy and SMFs in MRI units within Mangaung metropolitan region: a study protocol","authors":"P. Rathebe","doi":"10.1109/OI.2019.8908255","DOIUrl":"https://doi.org/10.1109/OI.2019.8908255","url":null,"abstract":"Through exposure assessments, many studies in American and European countries have associated exposure to static magnetic fields with transient health effects, RF fields with thermal effects and time varying magnetic fields with motion induced effects amongst MRI staff. Literature on the long-term health implications is inconclusive. In South African, MRI staff are exposed to electromagnetic fields from MRI scanners and no exposure assessments have been conducted to quantify the levels. The aim of this study is to investigate the exposure levels of SM and RF fields in MRI units, and to assess the health effects resulting from exposure to SM and RF fields among MRI staff. This study is cross sectional and descriptive in nature. Measurements will be collected from two 1.5 Ts and one 3 T scanners in two academic hospitals. A THM1176 3-Axis hall magnetometer will be used to quantify the exposure levels of SMFs while TM-196 3 Axis RF Field strength meter will be used to measure RF fields. The SMF measurements will be taken per distance interim; 1 and 2 m away from the scanners when brain, cervical spine and extremities are scanned. RF fields’ measurements will be collected 1 m away from the scanners when patients are examined. Questionnaires will be administered on 42 MRI workers works with 1.5 and 3T MRI scanners. Ethical clearance and permission have been obtained. Data will be analyzed by SAS version 9.2. Categorical and numerical data will be calculated, chi-square test will also be used to test for differences between proportions. ANOVA will be used to compare the mean values and Mann-Whitney U-test will be used to compare median values. A significance level (α) of 0.05 will be used. The results from this study will be used to inform health policies related to MRI fields’ exposures in South Africa and to inform hierarchy of control measures that aims to reduce exposure-related effects. The occurrence of exposure-related effects among MRI staff has not yet been extensively studied in South Africa, and this study seeks to provide the exposure scenarios in the South African health care settings.","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121175714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Cloud Computing Adoption Model for the South African Police Services (SAPS)","authors":"T. Ngqondi, Leonald Kalipa, H. Mauwa, Mncedisi J. Bembe","doi":"10.1109/OI.2019.8908228","DOIUrl":"https://doi.org/10.1109/OI.2019.8908228","url":null,"abstract":"Record keeping and safety of dockets in the police stations in South Africa has been identified and reported as a barrier or challenge in finalising some of the court cases. Criminal records are physically stored in hard copies on one site, whereby they cannot be accessible electronically in other locations such as courts, law firms and other police stations. This form of record keeping exposes the criminal records to many risks such as dockets being misplaced, lost or stolen, as they rotate from one unit to another within the station. This leads to withdrawal of cases by the state without proper implementation of justice. An alternative way of storing and sharing information, which eliminates the shortfalls of the current system is needed. Embracing cloud computing for storage of these records can address such challenges. Cloud computing will enable SAPS to store, share and retrieve files from various locations, where sharing of resources is crucial for quick and effective decision-making. Therefore, this study investigates a cloud computing adoption model, which can introduce the benefits of cloud computing in storing, sharing and managing criminal records within the South African Police Service. An interpretive paradigm was adopted for this research, embracing the qualitative research approach.","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130830569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Designing a Cloud-native Weigh-In-Motion","authors":"S. Kirushanth, Boniface Kabaso","doi":"10.1109/OI.2019.8908183","DOIUrl":"https://doi.org/10.1109/OI.2019.8908183","url":null,"abstract":"This paper discusses the system architecture of a cloud-native Weigh-In-Motion (WIM) system prototype. The prototype WIM system was developed to ingest Vehicular Telematics (VT) data from several Internet of Vehicles (IoV). It is a necessity to build a cloud-native system to serve VT data from IoV devices. There are some design issues to be considered before designing. This paper discusses how the system prototype was designed by considering the design aspects as a reactive system. Four major design solutions, 1) Kubernetes, 2) GlusterFS, 3) Kafka Cluster, 4) Akka Streams are used in the design. The explanations for choosing the solutions were also discussed.","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"291 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132817574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Proposed Innovative Framework to Explore the Communication Challenges Between Bloemwater and the Mangaung Municipality","authors":"Musukali Nanousha Kusakana, M. Coetzee, S. Oke","doi":"10.1109/OI.2019.8908218","DOIUrl":"https://doi.org/10.1109/OI.2019.8908218","url":null,"abstract":"This paper proposes a framework to explore the existing mode of communication between the Mangaung Metropolitan Municipality, the representative of water affairs (which include Bloemwater) and the communities of the Free State province in South Africa. The main problem has been identified supported by proper literature review focusing on the study area. The objective as well as a proper methodology that can be used when conducting this work have been provided with the expected goal improving the communication strategy between the different stakeholders involved in the water service delivery.","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133701900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How Undergraduate Students ‘Chat Language’in Whatsapp","authors":"W. Matli","doi":"10.1109/OI.2019.8908253","DOIUrl":"https://doi.org/10.1109/OI.2019.8908253","url":null,"abstract":"This paper is based on Masters’ dissertation submitted to Vaal University of Technology, which investigated messaging service applications as an educational supporting tool. The use of social media applications to support learning is fairly new in most Higher education institutions in South Africa. The more technology contributions are embraced, it is fundamental that the education system takes advantage of incorporating technology in teaching and learning. This research paper investigates messaging service applications as an educational supporting tool in higher education (HE) institutions of South Africa. The methodology of textual interaction was adopted in order to analyse the textual interactions between students themselves and their lecturer. This paper reports on an on-going study that introduced the use of texting technology as a supporting tool. This paper discusses how undergraduate students tend to be freer when using the so called “chat language” texting in a digital space environment. Furthermore the paper provides an insight on the benefits of allowing undergraduate students to freely use the ‘chat language’ and how students understand the language. What was beneficial to the project was that students were already using WhatsApp among other social media applications, therefore, no training was required or extra cost was experienced. As example, students who find it difficult to interact with other students and the lecturer during face-to-face contact sessions are given the opportunity to make use of messaging service applications to ask questions and communicate with fellow students and lecturers. This paper states the argument that students and their lecturer(s) should be in a position to reach one another and have learning interactions through technology that enables instant communication through various messaging service applications. The use of messaging service applications affords students and lecturers an advantage to extend learning beyond class contact with minimal time constraints. …The way they text so fast, I wonder what language they are using:-)","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133799548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Internet of Things Research & Development: What Will Work for Africa?","authors":"M. Masinde","doi":"10.1109/OI.2019.8908230","DOIUrl":"https://doi.org/10.1109/OI.2019.8908230","url":null,"abstract":"in the case of the developed regions, Internet of Things has already stepped out of its infancy - it has been earmarked as the key driver of Industry revolution 4.0 as well as of the Future Internet. In Africa however, most countries have not kept pace with both the underlying technology advancements and research required for Internet of Things. Consultative and deliberate efforts towards a strategic plan for research and development in the Content are one way of redressing this gap. Such an Internet of Things roadmap needs to contextualize Africa’s inherent challenges and opportunities this roadmap is the focus of this paper.","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115061118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Editorial: New Frontiers of the Fourth Industrial Revolution","authors":"N. Ochara, T. Iyamu, J. N. Odhiambo","doi":"10.1109/oi.2019.8908160","DOIUrl":"https://doi.org/10.1109/oi.2019.8908160","url":null,"abstract":"As humanity struggles to adequately conceptualize the society of the Fourth Industrial Revolution (4IR), some fundamental truths remain: that change is steeped in digital transformation; organizing forms are in flux; and that innovation could be the anchor to the future sustainability of humanity. The Open Innovations Conference (OIC) provides a platform for discourse on these fundamental truths of profound digital transformation, changing forms of organizing and a re-think of the notion of innovation. The 2019 Open Innovations Conference (OI), technically co-sponsored by IEEE, addressed the theme of “New Frontiers of the 4IR” by engaging with policy makers and practitioners shaping the 4IR discourse, and collating scholarly contributions from cognate disciplines germane to the 4IR. The theme of the 2019 Open Innovations Conference sought to unravel the intricacies, contradictions and innovations of the 4IR, but, from a multi-disciplinary and inter-disciplinary scholarly perspective. The emphasis on open innovations, a paradigm that shifts viewing innovation from an internal to an external orientation, undergirds the value system of the Open Innovations Conference (OIC) series. Several disciplines sought to frame their understandings of the 4IR by investigating the foundations, practices and impact of emerging technologies on human development, particularly within the context of Africa. Contributions at the fore of the 2019 Open Innovations Conference are from Computer Science, Information Systems, Mechatronic Engineering, Electrical and Computer Engineering, Civil Engineering, Public Administration, Environmental Sciences, Public Health and Science and Technology Education. From these contributions, the view is that the society of the 4IR needs to envisage a sustainable future thatelevates the role of humanity and the individual in influencing technological change for human progress.","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115118863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}