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Design, Construction and Testing of a Cocoa Pod Breaking Machine to Improve Cocoa Processing 提高可可加工质量的可可碎荚机的设计、制造和试验
Pub Date : 2022-05-16 DOI: 10.23919/IST-Africa56635.2022.9845573
Daniel A. Amoshie, H. Beem
The global demand for cocoa is increasing, calling for faster cocoa production processes. Cocoa pod breaking is a key step in the process and reliance on manual methods has largely remained unaddressed. One adverse effect of reliance on manual labour is the level of child labour in cocoa production increases. Aside from the manual process being ineffective, another implication is the risk the manual process exposes farmers to. This paper documents the design and local fabrication of a mobile cocoa pod-breaking machine that automatically separates the beans from the husk and placenta, using mechanized blades and a sieve system, thereby improving productivity, reducing labour cost, and on-farm hazards. Preliminary testing of the machine’s performance indicates efficiencies of 90-98% and bean damage of less than 2%. The business potential of this machine is also described.
全球对可可的需求正在增加,这就要求加快可可的生产过程。可可豆荚破碎是这一过程中的关键一步,对手工方法的依赖在很大程度上仍未得到解决。依赖体力劳动的一个不利影响是可可生产中童工的数量增加。除了手工流程无效之外,另一个影响是手工流程给农民带来的风险。本文记录了一种移动可可豆破碎机的设计和本地制造,该机器使用机械化叶片和筛网系统自动将可可豆从外壳和胎盘中分离出来,从而提高了生产率,降低了劳动力成本,减少了农场危害。机器性能的初步测试表明,效率为90-98%,豆损伤低于2%。介绍了这台机器的商业潜力。
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引用次数: 0
SignSupport: An Emergency Mobile Application for the Deaf SignSupport:为聋人提供的紧急移动应用程序
Pub Date : 2022-05-16 DOI: 10.23919/IST-Africa56635.2022.9845605
Anuoluwapo S. Tovide, W. Tucker, Olasupo O. Ajayi
The Deaf are individuals living with a varying degree of hearing loss. Communication with the Deaf is usually done through sign languages, which relies heavily on vision. This is a major challenge during emergency situations involving the Deaf, when there is a need to contact emergency services; because most emergency service contact numbers are voice-based thereby making it difficult for a Deaf victim to describe the nature of aid required. The aim of this research effort is to design a sign support emergency mobile application for Deaf people, to avail them the same level of access to emergency services as hearing people. This is done by using a cross-platform mobile application, called SignSupport, which was developed by following an iterative co-design methodology, with the local Deaf communities, emergency service providers and domain experts as collaborators. The developed app was rigorously tested and deemed usable and effective by the stakeholders.
聋人是有不同程度听力损失的人。与聋人的交流通常是通过手语进行的,这在很大程度上依赖于视觉。在涉及聋人的紧急情况下,当需要联系紧急服务时,这是一个重大挑战;因为大多数紧急服务联系电话都是基于语音的,因此聋人受害者很难描述所需援助的性质。本研究的目的是为聋人设计一个支持紧急移动应用程序的标志,使他们能够获得与正常人相同的紧急服务。这是通过使用一个名为SignSupport的跨平台移动应用程序来完成的,该应用程序是与当地聋人社区、紧急服务提供者和领域专家作为合作者,按照迭代的共同设计方法开发的。开发的应用程序经过了严格的测试,并被利益相关者认为是可用和有效的。
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引用次数: 2
The Development of a Livestock Farm Management Information System (LFMIS) 畜牧场管理信息系统(LFMIS)的开发
Pub Date : 2022-05-16 DOI: 10.23919/IST-Africa56635.2022.9845563
M. Ujakpa, Etuna Kamati, Serenia T. G. A. Ngola, Timoteus A. Sheepo, Joseph Ilonga
Many farmers do not use Farm Management Information Systems (FMIS) for various reasons, like lack of knowledge and the complexity of many available FMISs. To make available simpler FMIS and also aid farmers effectively and efficiently manage their farm activities, this project designed and developed a Livestock Farm Management Information System (LFMIS). Towards the development of the system, participants were chosen from the Khomas region of Namibia. The developed system is able to allow farmers to record livestock information and track their progress, manage farm resources with accounting capabilities, manage calendar events, and reminders of important farm events, such as treatment, connect with buyers, connect with relevant farm, stakeholders, and access seasonal progress, pest and production information. The developers are optimistic that the system would benefit farms and farmers by making them more efficient and effective. Considering that the system currently does not manage calendar events, and reminders of important farm events, such as treatment and does not also automatically alert famer of animal diseases, it is recommended that similar future systems or higher versions of this system incorporate the said features.
由于各种原因,许多农民不使用农场管理信息系统(FMIS),如缺乏知识和许多可用的FMIS的复杂性。为了使畜牧业管理信息系统更简单,并帮助农民有效和高效地管理他们的农场活动,本项目设计和开发了一个畜牧业管理信息系统(LFMIS)。在开发该系统的过程中,从纳米比亚的Khomas地区挑选了参与者。开发的系统使农民能够记录牲畜信息并跟踪其进度,利用会计功能管理农场资源,管理日历事件和重要农场事件(如治疗)的提醒,与买家联系,与相关农场、利益相关者联系,并获取季节性进展、有害生物和生产信息。开发人员乐观地认为,该系统将使农场和农民更加高效,从而受益。考虑到该系统目前不管理日历事件和重要农场事件的提醒,例如治疗,也不能自动提醒农民动物疾病,建议将来类似的系统或更高版本的系统包含上述功能。
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引用次数: 0
School Management Information System (SMIS) for the Elite College 精英学院的学校管理信息系统(SMIS)
Pub Date : 2022-05-16 DOI: 10.23919/IST-Africa56635.2022.9845593
M. Ujakpa, Mutalya N. Mutalya, J. Osakwe, G. Iyawa, Emilia N. Shililifa
This project aimed at developing a school management information system for Elite College. Applying prototyping methodology and gathering user requirement through interviews, the system was developed. The developers used the prototype development method, because the developers found it as a flexible method that adapts to system requirement changes, thus enabling the developer to re-define the scope of project whenever need be. The developed system allows for student registration, online fees payment, students access to their personal and academic information (timetable, upcoming events, marks, transcripts / academic records and financial statement). The system is unable to send SMSs and emails and hence future development of similar system or higher version should consider incorporating this feature as it makes communication more efficient.
本课题旨在为精英学院开发一个学校管理信息系统。采用原型设计方法,通过访谈收集用户需求,开发了该系统。开发人员使用原型开发方法,因为开发人员发现它是一种灵活的方法,可以适应系统需求的变化,从而使开发人员能够在需要时重新定义项目的范围。开发的系统允许学生注册,在线支付费用,学生访问他们的个人和学术信息(时间表,即将举行的活动,分数,成绩单/学习成绩和财务报表)。该系统无法发送短信和电子邮件,因此未来开发类似系统或更高版本应考虑纳入此功能,因为它使通信更有效。
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引用次数: 0
Deep Learning Based Algorithms for Detecting Chronic Obstructive Pulmonary Disease 基于深度学习的慢性阻塞性肺疾病检测算法
Pub Date : 2022-05-16 DOI: 10.23919/IST-Africa56635.2022.9845630
Endashaw Amsalu Melese, Evarist Nabaasa, Matiwos Tekalign Wondemagegn, Safari Yonasi, Gemechis Melkamu Negasa
Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease with various clinical presentations. The basic abnormality in all patients with COPD is airflow limitation. The main method for diagnosis of COPD is using spirometer and imaging equipment, which are expensive and not suitable for use. This study aims at developing algorithms for analysing cough sounds for detecting COPD. CNN and CRNN based deep learning techniques are used for developing the algorithm. We have used both augmented and non-augmented datasets with three different feature extraction methods: Mel-frequency cepstral coefficient, zero crossing rate, and harmonic change detection function. The developed CNN and CRNN scored an accuracy of 96.6% and 96.73% respectively. Conclusion: The proposed algorithms have improved classification performance that had been reported in the literature. Significance: The results of this study suggest that automatic diagnostic tools can be developed with less intervention from healthcare professionals.
慢性阻塞性肺疾病(COPD)是一种具有多种临床表现的异质性疾病。所有COPD患者的基本异常是气流受限。慢性阻塞性肺病的主要诊断方法是使用肺活量计和成像设备,这些设备价格昂贵且不适合使用。本研究旨在开发用于分析咳嗽声音以检测COPD的算法。基于CNN和CRNN的深度学习技术被用于开发算法。我们使用了三种不同的特征提取方法:mel频率倒谱系数、零交叉率和谐波变化检测函数,分别对增强和非增强数据集进行了提取。开发的CNN和CRNN的准确率分别为96.6%和96.73%。结论:本文提出的算法提高了已有文献报道的分类性能。意义:本研究的结果表明,自动诊断工具的开发可以减少卫生保健专业人员的干预。
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引用次数: 1
Community of Practice in Practice: Successful Implementation of Integrated Community Health Information Systems 实践中的实践社区:成功实施综合社区卫生信息系统
Pub Date : 2022-05-16 DOI: 10.23919/IST-Africa56635.2022.9845579
C. Kanjo, T. Manda, Lawrence Fatsani Byson, Ahmed Twabi, K. Munthali
For a long time, the Malawi health sector community level was using paper-based tools. However, the huge impact of the data generated at the lowest level of the health sector in performance monitoring, decision making, planning and measuring progress prompted the need to have digital solutions. When digital tools were introduced; most of them were only addressing a single functionality or programme, resulting with a lot of fragmentation and siloed systems. Therefore, most of the information systems in place are not holistic, what is missing is information systems that are integrated in nature, encompassing all the patient and programmes data. The Malawi MoH through the Community Health Services Section (CHSS) in collaboration with other departments is implementing an integrated community health information system (iCHIS), resting upon an open-source, web-based platform – DHIS2. The goal of this paper is to discuss the role that different communities of practice (CoP) played in the different phases of iCHIS development and implementation. Drawing on case material from several CoPs in the Malawi health sector community level, a case is built around the use of CoPs, arguing that if the different communities are well coordinated and collaborated, they will be able to enhance the integration of the community health information system. In this paper, we analyzed how the interaction of different CoPs have led to the successful implementation of the integrated community health information system (iCHIS) in the Malawi health sector. Five CoPs were identified namely: policy makers, developers, users, facilitators and supervisors CoPs.
长期以来,马拉维卫生部门社区一级一直在使用纸质工具。然而,卫生部门最低一级产生的数据在绩效监测、决策、规划和衡量进展方面的巨大影响促使需要采用数字解决方案。当数字工具被引入;它们中的大多数只处理单个功能或程序,导致大量碎片化和孤立的系统。因此,现有的大多数信息系统都不是整体的,缺少的是包含所有患者和方案数据的综合信息系统。马拉维卫生部通过社区卫生服务科(CHSS)与其他部门合作,正在基于一个开源的网络平台DHIS2实施一个综合社区卫生信息系统(iCHIS)。本文的目的是讨论不同的实践社区(CoP)在iCHIS开发和实施的不同阶段所起的作用。根据马拉维卫生部门社区一级几个缔约方会议的案例材料,围绕缔约方会议的使用建立了一个案例,认为如果不同的社区得到良好的协调和合作,它们将能够加强社区卫生信息系统的整合。在本文中,我们分析了不同cop的相互作用如何导致马拉维卫生部门成功实施综合社区卫生信息系统(iCHIS)。确定了五个缔约方:决策者、开发者、用户、促进者和监督者。
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引用次数: 0
Intention to adopt e-Voting: A Perspective of South African Youth 采用电子投票的意向:南非青年的观点
Pub Date : 2022-05-16 DOI: 10.23919/IST-Africa56635.2022.9845522
Tankiso Moletsane, P. Tsibolane
In July 2020, the Independent Electoral Commission (IEC) of South Africa tabled its intention to introduce electronic voting (e-voting) to lower the costs of voting, improve electoral transparency and efficiency, and to improve overall voter participation. However, more research is required to explain the factors that could potentially influence voters, particularly the youth demographic (18-35 years), to adopt e-voting technology. This research investigated the factors that influence the intention of young South Africans to adopt electronic voting in South Africa by combining constructs from three theories: theory of planned behaviour (TPB), technology acceptance model (TAM) and the diffusion of innovation theory (DOI). An online survey was used to collect data (n=412). Confirmatory factor analysis applied on a pre-tested and pre-validated quantitative survey reveal that technology stickiness, access to ICT, ICT skills, attitude towards ICT, relative advantage and political affiliation influence the intention to use e-voting. This research provides actionable insights for stakeholders in the electoral process management regarding e-voting adoption in the global South.
2020年7月,南非独立选举委员会(IEC)提出了引入电子投票(e-voting)的意图,以降低投票成本,提高选举透明度和效率,并提高选民的整体参与度。然而,需要更多的研究来解释可能影响选民,特别是青年人口(18-35岁)采用电子投票技术的因素。本研究结合计划行为理论(TPB)、技术接受模型(TAM)和创新扩散理论(DOI)三种理论的构建,调查了影响南非年轻人采用电子投票意愿的因素。采用在线调查收集数据(n=412)。验证性因子分析应用于预测试和预验证的定量调查显示,技术粘性、获取信息通信技术、信息通信技术技能、对信息通信技术的态度、相对优势和政治派别影响使用电子投票的意愿。本研究为全球南方国家采用电子投票的选举过程管理的利益相关者提供了可操作的见解。
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引用次数: 0
Impact of Social Media on Student's Academic Performance in Higher Education Institution 社交媒体对高校学生学业成绩的影响
Pub Date : 2022-05-16 DOI: 10.23919/IST-Africa56635.2022.9845516
Nosipho Mavuso, Asiphe Manquma, Kehinde D. Aruleba
Social media has emerged as one of the platforms used for teaching and learning within institutions of higher learning in contemporary times. This study was conducted to assess the impacts of using social media for teaching and learning. The study also investigates the challenges faced in implementing social media in teaching and learning in higher education institutions and provides recommendations for this challenge. The mixed research methodology was applied, and data were collected from 100 students drawn from the first year to fourth year (Honours). Descriptive statistics were used as the primary data analysis method, and thematic analysis was used to analyse qualitative findings. The study concluded that social media positively impacts students' academic performance, efficiency, and productivity and is easy to use in teaching and learning. The study recommended that there should be initiatives to ensure that all students are provided with internet and laptops for effective online teaching and learning.
社交媒体已经成为当代高等院校教学和学习的平台之一。本研究旨在评估使用社交媒体进行教学和学习的影响。该研究还调查了高等教育机构在教学和学习中实施社交媒体所面临的挑战,并提出了应对这一挑战的建议。采用混合研究方法,从100名一年级到四年级(荣誉)学生中收集数据。采用描述性统计作为主要的数据分析方法,并采用专题分析来分析定性结果。该研究得出结论,社交媒体对学生的学习成绩、效率和生产力有积极影响,并且易于在教学中使用。该研究建议,应该采取措施,确保所有学生都能使用互联网和笔记本电脑,以便有效地进行在线教学。
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引用次数: 0
Development of an Interactive Remote iLab for a Wind Energy System 风能系统交互式远程实验室的开发
Pub Date : 2022-05-16 DOI: 10.23919/IST-Africa56635.2022.9845520
Yusuf Kyambadde, Steven Kalyesubula, P. Lating, A. Kabwama
There is an ongoing campaign globally to reduce the carbon footprint by migrating from fossil-based to renewable energy sources. In particular, wind energy use is increasing due to advancements in technology. Accordingly, the materials used in wind energy education need to be advanced to better and cheaper ones. An interactive remote wind energy laboratory (lab) was developed in this study. The lab enables remote experimentation via the internet about the variables on which wind power output depends, including; wind speed, temperature, humidity, number of turbine blades, and pitch angle. The lab setup consisted of; wind fan, wind speed sensor, miniature wind turbine, NI ELVIS II prototyping board, and Arduino microcontroller. The sample results and wind power curve generated were found to be similar to those from hands-on experiments. The lab can be used for demonstrations, in circumstances of inadequate wind power hands-on experiments, and where there are many students.
全球正在开展一项运动,通过从化石能源转向可再生能源来减少碳足迹。特别是,由于技术的进步,风能的使用正在增加。因此,风能教育中使用的材料需要提高到更好、更便宜的水平。本研究开发了一个互动式远程风能实验室(lab)。该实验室可以通过互联网对风力输出所依赖的变量进行远程实验,包括;风速、温度、湿度、涡轮叶片数量和俯仰角。实验室设置包括;风力风扇,风速传感器,微型风力涡轮机,NI ELVIS II原型板和Arduino微控制器。样品结果和生成的风力曲线与实际实验结果相似。该实验室可用于示范,在风力不足的情况下,动手实验,并在有很多学生。
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引用次数: 0
Next Generation DNA Sequencing Technologies and Implementation Science in Reducing the Impact of Familial Colorectal Cancers in Developing Countries 下一代DNA测序技术和实施科学在减少家族性结直肠癌在发展中国家的影响
Pub Date : 2022-05-16 DOI: 10.23919/IST-Africa56635.2022.9845536
Rajkumar Ramesar, Ramadhani Salum Chambuso
This paper describes our programme of ascertainment of familial colorectal cancers specifically Lynch syndrome and the application of implementation science. Patients are managed through a multidisciplinary team by providing genetic testing using next generation DNA sequencing technologies, genetic counselling, cascade screening, and surveillance colonoscopies. We describe the economic benefits of this kind of intervention, and emphasise the value of using this “proven programme of precision medicine” to address the burden of inherited cancers in Africa. It is possible to reduce the incidence, survival, and health-economic impact of Lynch syndrome and other familial colorectal cancers through a combination of the following: (i) selected next-generation DNA sequencing technologies, (ii) targeted implementation science programs in cancer genetics, (iii) highly skilled multidisciplinary teams of medical scientists, oncologists, and clinical specialists, and (iv) patients and their families as the key stakeholders.
本文介绍了我们确定家族性结直肠癌特别是Lynch综合征的方案和实施科学的应用。通过使用下一代DNA测序技术、遗传咨询、级联筛查和监测结肠镜检查提供基因检测,多学科团队对患者进行管理。我们描述了这种干预的经济效益,并强调了使用这种“经过验证的精准医学规划”来解决非洲遗传癌症负担的价值。通过以下结合,有可能降低Lynch综合征和其他家族性结直肠癌的发病率、生存率和健康经济影响:(i)选定的下一代DNA测序技术,(ii)癌症遗传学中有针对性的实施科学计划,(iii)由医学科学家、肿瘤学家和临床专家组成的高技能多学科团队,以及(iv)作为关键利益相关者的患者及其家属。
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引用次数: 1
期刊
2022 IST-Africa Conference (IST-Africa)
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