2019 Open Innovations (OI)最新文献_第3页

A Review of Wavelet Transform based Techniques for Denoising Latent Fingerprint Images 基于小波变换的潜在指纹图像去噪技术综述

2019 Open Innovations (OI) Pub Date : 2019-10-01 DOI: 10.1109/OI.2019.8908252

Sboniso Sifiso Mgaga, N. P. Khanyile, J. Tapamo

引用次数: 3

Simulation of Second-Order Velocity Slip of Magnetohydrodynamic (MHD) Flows 磁流体动力学(MHD)流动的二阶速度滑移模拟

2019 Open Innovations (OI) Pub Date : 2019-10-01 DOI: 10.1109/OI.2019.8908162

T. Kunene, L. Tartibu

引用次数: 0

Vibration Response for class D44 and D39 200 Locomotive Wheelsets due to Dynamic Loads Excitation 200型D44和D39机车轮对在动载荷激励下的振动响应

2019 Open Innovations (OI) Pub Date : 2019-10-01 DOI: 10.1109/OI.2019.8908173

Bingo Balekwa, Danie Fourie, D. Kallon

{"title":"Vibration Response for class D44 and D39 200 Locomotive Wheelsets due to Dynamic Loads Excitation","authors":"Bingo Balekwa, Danie Fourie, D. Kallon","doi":"10.1109/OI.2019.8908173","DOIUrl":"https://doi.org/10.1109/OI.2019.8908173","url":null,"abstract":"Wheelset vibration response of two Transnet locomotive classes i.e. D39 200 and D44 are investigated using the modal analysis method. These two locomotive classes are the only classes used on the Belfast to Steelpoort railway line in the Limpopo Province of South Africa. The class D44 replaced the class D39 200 locomotives over two years ago. Short-pitch rail corrugation exists on rail track curves of the railway line. The axial (lateral) resonance frequencies of wheelsets from both locomotive classes prove to be more, than resonances in any other direction of vibration. This is in good agreement with the previous tests done on a class D39 200 locomotive wheelset. The axle coupling vibration response was measured in the axial direction by exciting one wheel and measuring accelerance of the opposite wheel on the wheelset. Vibration response for the class D44 wheelset shows more lightly damped resonance modes in the axial direction. The characteristics of the axial vibration response being lightly damped with the highest accelerance implies most of the vibration occurs in this direction and may be associated with most rail track damages.","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"45 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":"124821552","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}

引用次数: 3

Big Data for Small Business 小企业的大数据

2019 Open Innovations (OI) Pub Date : 2019-10-01 DOI: 10.1109/OI.2019.8908199

S. Salih, K. Njenga

{"title":"Big Data for Small Business","authors":"S. Salih, K. Njenga","doi":"10.1109/OI.2019.8908199","DOIUrl":"https://doi.org/10.1109/OI.2019.8908199","url":null,"abstract":"Big data has brought a notable shift in the relationship between technology and business and the ways in which businesses operate. However, the opportunities that big data offer to businesses, come with potential adoption challenges that might have a negative impact on the adoption of big data analysis, which can result in the resistance of organizations to adopt big data analysis. This study aims to understand the reasons behind resistance of adopting big data analysis for small business in South Africa. Literature has been reviewed on changes concerns and factors influencing small business adopting big data analysis. A case study of South African small business was taken; three themes were used to theoretically analyse the collected data (decision making, challenges and technology). Data has been collected through individuals’ interviews with business owners. The study represents some of the different reasons why small South African businesses are resistant to adopt big data analysis. The findings of the study found that lack of knowledge about the real potential of big data analysis is what is stopping small businesses from adopting big data analysis. Additionally, more small business could adopt big data analysis had they been informed about the affordable analysis tools.","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"23 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":"125765853","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}

引用次数: 3

Energy Efficiency Improvements in a Microbrewery in South Africa 南非一家小型啤酒厂的能源效率改进

2019 Open Innovations (OI) Pub Date : 2019-10-01 DOI: 10.1109/OI.2019.8908193

J. Conduah, K. Kusakana, P. A. Hohne

{"title":"Energy Efficiency Improvements in a Microbrewery in South Africa","authors":"J. Conduah, K. Kusakana, P. A. Hohne","doi":"10.1109/OI.2019.8908193","DOIUrl":"https://doi.org/10.1109/OI.2019.8908193","url":null,"abstract":"The processes involved in brewing beer have been observed to be highly energy intensive. Breweries in particular may consume up to 8250 kWh per month. In addition, approximately 0.43 kWh is required to produce one liter of beer in large breweries, while energy usage in microbreweries are estimated to be significantly higher. A walkthrough energy audit revealed that a craft brewery located in Bloemfontein, South Africa, required approximately 0.65 kWh of electrical energy to produce one liter of beer. This equates to approximately 5.2% of the production costs involved, substantiating the need for energy management; this makes energy efficiency improvement an important way to reduce costs, especially in times of high energy price volatility. In South Africa, craft beer produced by these breweries became highly popular in recent years. The heating and cooling processes involved in the production of craft beer could be controlled based on the time-of-use (TOU) tariff to reduce the energy consumption. This may be achieved by shifting loads from peak demand to off-peak or standard time. Renewable energy source technologies can also be used to reduce the energy consumption; however, the renewable energy systems show a common disadvantage of not always meeting the energy demand during certain climate conditions. Therefore, in this paper, a methodology for reducing energy usage and associated costs is proposed to evaluate various energy management initiatives for prospective implementation.","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"4 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":"114109172","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}

引用次数: 5

Factors influencing digital government adoption in Zimbabwe 影响津巴布韦数字政府采用的因素

2019 Open Innovations (OI) Pub Date : 2019-10-01 DOI: 10.1109/OI.2019.8908196

W. Munyoka

引用次数: 2

Photovoltaic system sizing for household use: effects of temperature, orientation and sun tracking 家用光伏系统的尺寸:温度、方位和太阳跟踪的影响

2019 Open Innovations (OI) Pub Date : 2019-10-01 DOI: 10.1109/OI.2019.8908227

O. Babatunde, J. Munda, Y. Hamam

引用次数: 4

Review of IT Governance Frameworks Implementation in the Context of the South African Public Sector 在南非公共部门背景下对IT治理框架实施的审查

2019 Open Innovations (OI) Pub Date : 2019-10-01 DOI: 10.1109/OI.2019.8908178

Euphodia Mathase, Dr Mampilo Phahlane, Prof Nixon Muganda Ochara

{"title":"Review of IT Governance Frameworks Implementation in the Context of the South African Public Sector","authors":"Euphodia Mathase, Dr Mampilo Phahlane, Prof Nixon Muganda Ochara","doi":"10.1109/OI.2019.8908178","DOIUrl":"https://doi.org/10.1109/OI.2019.8908178","url":null,"abstract":"Public sector organisations are faced with the ethical demand to provide value, be transparent and accountable which however is the reverse for most public sector organisations. Over the years there has been attention on corporate governance and the focus of interest has been IT governance, with the crafting of IT governance frameworks such as the COSO, COBIT and ITIL etc. to help organisations to implement effective IT governance framework. This research focuses on how IT governance is adopted in the public sector, what factors affect the implementation of IT governance in the public sector and the implementation tools available. A desk research method was used for the vast amount of data to review how organisations are faring in the implementation of IT governance frameworks. The research was a qualitative research. The research findings reflect that there are challenges in implementing IT governance in most public sector organisations because of factors ranging from weak corporate governance, financial constraints, lack of interest and innovation, large size of most of the public sector organisations, making the control structure too broad for the Boards, and political reasons. Most public sector organisations are within the ad-hoc and fragmented maturity levels of IT Governance. The researcher recommends further research on the failure to enforce and make compulsory the implementation of IT governance in public sector.","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"3 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":"126533219","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}

引用次数: 3

Prospect of Solar-assisted Heat Pump Water Heating Systems for Student Residences 学生宿舍太阳能辅助热泵热水系统的前景

2019 Open Innovations (OI) Pub Date : 2019-10-01 DOI: 10.1109/OI.2019.8908203

T. P. Gaonwe, K. Kusakana, P. A. Hohne

{"title":"Prospect of Solar-assisted Heat Pump Water Heating Systems for Student Residences","authors":"T. P. Gaonwe, K. Kusakana, P. A. Hohne","doi":"10.1109/OI.2019.8908203","DOIUrl":"https://doi.org/10.1109/OI.2019.8908203","url":null,"abstract":"Water heating is the major energy user in the residential sector. The hot water contribution in the residential sector of South Africa is up to 60% on an average monthly basis and accounts for more than 50% of the monthly electricity cost. Electric storage tank water waters are the main contributors to the high energy consumption in the residences and most of the heating process takes place during the peak times, when electricity is more expensive than off-peak and normal time. This and the growing population and living standards of the economy has led to the high demand of electricity and energy shortage in the country. Reducing the desired end users’ water temperature has been proposed as a solution to reduce the energy consumption this practice increases chances of diseases like legionella pneumophila. The water heating process could be incorporated with the time-of-use (TOU) tariff to reduce the energy consumption by load shifting from peak demand to off-peak or normal time. Renewable energy source technologies can also be used to reduce the energy consumption; however, the renewable energy systems show a common disadvantage in meeting the energy demand during certain climate conditions. And therefore, the hybrid energy systems can be implemented to promote energy conservation and energy efficiency of the renewable energy system. To further reduce the energy consumption, the TOU tariff can be used for optimal control and energy management of the hybrid system.","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"86 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":"124133488","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}

引用次数: 0

Complementary Methods for Human Visual Perception of Visual Weather Lore Sky Objects Using Machine Learning Methods 使用机器学习方法的人类视觉感知视觉天气和天空物体的补充方法

2019 Open Innovations (OI) Pub Date : 2019-10-01 DOI: 10.1109/OI.2019.8908176

Mwanjele Mwagha, M. Masinde

{"title":"Complementary Methods for Human Visual Perception of Visual Weather Lore Sky Objects Using Machine Learning Methods","authors":"Mwanjele Mwagha, M. Masinde","doi":"10.1109/OI.2019.8908176","DOIUrl":"https://doi.org/10.1109/OI.2019.8908176","url":null,"abstract":"Recent research indicate a surge in the use of machine learning and artificial intelligence to compliment the processes of human visual perception. In particular, applying closeness measures of digital objects is of great significance in the attempts to account for the correspondence between digitized sky objects and some human identifiable object. The scoring of computerized objects can be based on testing a combination of well-known features humans use for visual perception, with a consideration that the human visual cognition system is well tailored for discriminating structural information from visual objects. This way, benchmark tests can be used to compute some proximity of detected objects to the specified object’s reality. Apart from producing outputs for use in the predictions, object similarity tests can also act as a mechanism for quality assessment process for the results of computer object detectors. One assumption here is that similar objects cannot qualify as perfect matches to their real objects but may contain some acceptable divergence in their closeness. In this paper, algorithms for extracting shape, color and texture information in visual sky (specific to traditional weather lore) objects are investigated as candidates for visual sky objects benchmarking, and their performances compared using a collection of positive/negative instances of visual sky objects. The rationale for testing both positive/negative instances was due to the fact that while the sky objects detectors can be expected to generate positive detections, the number of false positives detectable should be negligible.","PeriodicalId":330455,"journal":{"name":"2019 Open Innovations (OI)","volume":"228 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":"123295340","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}

引用次数: 0