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ASSESSING ORGANISATIONS’ READINESS TO ADOPT GREEN INFORMATION TECHNOLOGY: THE CASE OF A SOUTH AFRICAN INFORMATION TECHNOLOGY SERVICES VENDOR 评估组织采用绿色信息技术的准备程度:以南非信息技术服务供应商为例
4区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-01 DOI: 10.7166/34-2-2881
Isaac Muranganwa, Rennie Naidoo
Green information technology (IT) adoption is an important topic in the fields of information systems, business sustainability, and corporate social responsibility. This case study applies the green IT adoption model (GITAM) to perform a systematic and qualitative readiness assessment at a major South African IT services vendor. Thematic data analysis was used to analyse the data collected from managers and specialist IT staff. The assessment revealed that the main organisational adoption readiness barriers were the lack of a formal green IT policy, an unclearly defined green IT governance framework, and a lack of green performance management. The main drivers of adoption were economic imperatives and regulatory and ethical requirements. Interestingly, a contextual variable – an exogenous shock caused by COVID-19 and the robustness of the organisation’s crisis response during the pandemic – rapidly increased the rate of green IT adoption at the firm. Keywords: Corporate Social Responsibility, Green IT Adoption Model (GITAM), Case Study, G-readiness Assessment, Green IT, Sustainability, Technology Adoption
绿色信息技术(IT)的采用是信息系统、商业可持续性和企业社会责任领域的一个重要话题。本案例研究应用绿色IT采用模型(GITAM),对一家主要的南非IT服务供应商进行系统和定性的准备情况评估。专题数据分析用于分析从管理人员和专业IT人员收集的数据。评估显示,主要的组织采用准备障碍是缺乏正式的绿色IT政策,一个不明确定义的绿色IT治理框架,以及缺乏绿色绩效管理。采用的主要驱动因素是经济上的需要以及管理和道德上的要求。有趣的是,一个背景变量——由COVID-19引起的外源性冲击和大流行期间组织危机应对的稳健性——迅速提高了公司的绿色IT采用率。关键词:企业社会责任,绿色IT采用模型(GITAM),案例研究,G-readiness评估,绿色IT,可持续性,技术采用
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引用次数: 0
LEAN SIX SIGMA METHODOLOGY TO REDUCE EXCESS WASTAGE IN A BRICKYARD: A CASE STUDY 减少砖厂多余浪费的精益六西格玛方法:案例研究
4区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-01 DOI: 10.7166/34-2-2865
Juan Carlos Quiroz Flores, IF Varas, Ahad Ali
Peruvian companies’ craft brick stands currently experience significant growth in sales. Thus brickyards seek to reduce the amount of waste to increase productivity and reduce cost overruns. In this study, the problem that has the greatest economic impact on a brick company is the excessive amount of waste. For this reason, the implementation of a model based on the Lean Six Sigma (LSS) methodology is proposed, applying Poka Yoke, Jidoka, Standardised Work, and Just in Time in order to reduce the number of defective bricks and cost overruns. The research project focused on the tambourine brick, the type whose percentage of generated waste is the highest in the production batch. To do this, the current situation was analysed; the main causes of the problem were identified and measured; and then Lean Six Sigma tools were used to attack the root cause. Finally, the proposed design reduced overheated bricks by 2.36%, wet bricks by 2.01%, and poorly stacked bricks by 1.8%, obtaining a 6.92% reduction in shrinkage and increasing the level of Six Sigma to 3.9, which contributed to the reduction of losses in the brickyard. Keywords: Lean Six Sigma, Poka Yoke, Jidoka, Standardized Work, brickyard, waste
秘鲁公司的工艺砖摊位目前的销售额显著增长。因此,砖厂寻求减少浪费的数量,以提高生产率和减少成本超支。在本研究中,对砖厂经济影响最大的问题是浪费过多。出于这个原因,提出了基于精益六西格玛(LSS)方法的模型的实施,应用Poka Yoke, Jidoka,标准化工作和Just in Time,以减少缺陷砖的数量和成本超支。该研究项目的重点是铃鼓砖,这是生产批次中产生的废物百分比最高的类型。为此,对现状进行了分析;确定并测量了问题的主要原因;然后使用精益六西格玛工具来解决根本原因。最后,本设计减少过热砖2.36%、湿砖2.01%、堆放不良砖1.8%,收缩率降低6.92%,六西格玛水平提高到3.9,减少了砖厂的损失。关键词:精益六西格玛,Poka Yoke, jiidoka,标准化工作,砖厂,废物
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引用次数: 0
IMPROVING ENERGY USAGE IN COMMERCIAL BUILDINGS USING SIX SIGMA DMAIC 利用六西格玛动态改进商业建筑的能源使用
4区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-01 DOI: 10.7166/34-2-2392
Kanyinda Kabuya, Oludolapo Akanni Olanrewaju, Ian Joseph Lazarus
This article describes the energy-saving measures in commercial buildings from different perspectives on energy saving in cities. In recent years, improving energy conservation in commercial buildings has become an issue of great importance for the financial well-being of organisations. The study uses the define-measure-analyze-improve-control (DMAIC) Six Sigma approach to identify the factors that contribute to increases in electricity consumption. With the increasing shortage of energy, two years’ worth of energy consumption data from a commercial building in South Africa was collected and analyzed using statistical tools. The research findings revealed that the boiler had the highest electricity consumption (38.33 per cent), followed by the kitchen (24.20 per cent) and the rest of the building (37.47 per cent). After applying the DMAIC process, it showed that the electricity consumption of the boiler could be reduced by 6 per cent during the improvement phase. Keywords: Six Sigma, DMAIC, Energy management, Energy consumption, Energy efficiency
本文从城市节能的不同角度阐述了商业建筑的节能措施。近年来,提高商业建筑的节能已成为一个非常重要的问题,为组织的财务福利。该研究采用定义-测量-分析-改进-控制(DMAIC)六西格玛方法来确定导致电力消耗增加的因素。随着能源的日益短缺,我们收集了南非一座商业建筑两年的能源消耗数据,并使用统计工具进行了分析。研究结果显示,锅炉的用电量最高(38.33%),其次是厨房(24.20%)和建筑物其他部分(37.47%)。应用DMAIC工艺后,结果表明,在改进阶段,锅炉的用电量可减少6%。关键词:六西格玛,DMAIC,能源管理,能耗,能效
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引用次数: 0
DEVELOPMENT OF A MAINTENANCE POSSESSION SCHEDULER FOR A RAILWAY 铁路维修占用调度系统的研制
4区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-01 DOI: 10.7166/34-2-2750
Dewald Cillie, James Bekker
Maintenance of rail infrastructure is an important element in rail operations to keep traffic moving. However, maintenance causes infrastructure to be taken out of service, which impacts traffic flow. In this study, the requirements of a maintenance possession scheduler for a South African application were investigated and a proposed solution was developed. The main objective of the scheduler was to minimise the deviation of the train service on a subset of rail infrastructure while ensuring that the required maintenance was done. An application case – the railway infrastructure between Bellville and Wellington in the Western Cape province of South Africa – was identified. A novel mixed-integer linear programming model that could do possession scheduling for 24 hours on a microscopic level was formulated for this case, and implemented in the software Cplex, after which it was validated. Finally, several experiments were conducted to investigate the model’s performance and the results. It was found that the model delivered optimal results in less than nine minutes, which makes it a feasible maintenance possession scheduler for day-to-day work in the immediate planning horizon. Keywords: rail scheduling, maintenance, mixed-integer linear programming
铁路基础设施的维护是铁路运营中保持交通畅通的重要因素。但是,维护会导致基础设施停止服务,从而影响交通流量。在这项研究中,对南非应用程序的维护占有调度器的需求进行了调查,并提出了一个解决方案。调度器的主要目标是尽量减少铁路基础设施子集上列车服务的偏差,同时确保完成所需的维护。确定了一个应用案例——南非西开普省贝尔维尔和惠灵顿之间的铁路基础设施。针对这种情况,提出了一种能够在微观层面上进行24小时占有调度的混合整数线性规划模型,并在Cplex软件中实现,并进行了验证。最后,通过实验对模型的性能和结果进行了验证。结果表明,该模型在不到9分钟的时间内给出了最优结果,使其成为一种可行的日常工作的维护占有调度程序。关键词:铁路调度,维修,混合整数线性规划
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引用次数: 0
AN ALLOCATION MODEL FRAMEWORK FOR A CAPACITY-CONSTRAINED PORT: A CASE FOR CITRUS EXPORTS AT THE PORT OF DURBAN 产能受限港口的分配模型框架:以德班港柑橘出口为例
4区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-01 DOI: 10.7166/34-2-2815
Joshua Ian Darley-Waddilove, Leila Louise Goedhals-Gerber, Jeanette Engelmohr Thiart
This article investigates the viability of using forced allocation as a mechanism to alleviate capacity challenges through scenarios of varying allowable citrus throughput at the Port of Durban. Rule-based resource allocation techniques are used to divide the allowable citrus throughput at the constrained port between production regions by setting quotas. The allocation model framework minimises the impact of the forced allocation on the citrus export cold chain by setting the quotas as constraints in an integer programming (IP) formulation of a minimum cost transportation problem (TP) for the system. The results show that forced allocation is feasible under at least one resource allocation technique for four of the scenarios tested. Keywords: Allocation models, citrus exports, port capacity, Port of Durban
本文通过德班港不同允许柑橘吞吐量的情景,研究了使用强制分配作为缓解能力挑战的机制的可行性。采用基于规则的资源分配技术,通过设置配额来划分受约束港口在生产区域之间的允许柑橘吞吐量。分配模型框架通过将配额设置为系统最小成本运输问题(TP)的整数规划(IP)公式中的约束,将强制分配对柑橘出口冷链的影响降至最低。结果表明,在四种测试情景下,强制分配至少在一种资源分配技术下是可行的。关键词:配置模型,柑橘出口,港口容量,德班港
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引用次数: 0
THE APPLICATION OF SIX SIGMA TO IMPROVE THE YIELD OF PLASTIC INJECTION MOLDING 应用六西格玛提高塑料注射成型成品率
4区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-01 DOI: 10.7166/34-2-2887
Chun Tze Hsiao, Chih-Ping Lin, Ping-Hsin Fan
Plastic injection molding has complex process parameters. The Six Sigma improvement method mainly uses quality control and statistical methods to improve product quality, so as to reduce the cost and waste caused by defective products. Taiwan is the world leader for original equipment manufacturing in the laptop industry, and related peripheral accessories are also a major concern of customers. The subject of this study was a professional supplier of laptop batteries. Through the collection of customer complaint data, it was found that battery case deformation was the most important problem for customers. Therefore, in order to remain competitive, the battery case deformation problem needed to be overcome first. Enterprises need to improve their existing processes to reduce the rate of product defects, improve output efficiency and product quality, and reduce production costs, so as to improve their competitiveness in the industry.This study took a Taiwanese company as an example to improve the plastic injection process through the improvement steps of Six Sigma. In this process, two key process factors, namely the injection speed and the cooling time, were identified by analytical tools. After calculating customers’ daily product demand, the most suitable parameters were found using the ‘design of experiments’ method. The results showed that the process capacity and product yield could be significantly improved. The key to the success of this Six Sigma project was the project implementer’s design of the experiment.
塑料注射成型工艺参数复杂。六西格玛改进法主要运用质量控制和统计方法来提高产品质量,从而降低产品不合格品造成的成本和浪费。台湾在笔记本电脑行业的原始设备制造方面处于世界领先地位,相关的周边配件也是客户关注的主要问题。本研究的对象是一家专业的笔记本电脑电池供应商。通过收集客户投诉数据,发现电池壳变形是客户最关注的问题。因此,为了保持竞争力,首先需要克服电池壳变形问题。企业需要改进现有工艺,降低产品不良率,提高产出效率和产品质量,降低生产成本,从而提高企业在行业中的竞争力。本研究以一家台湾公司为例,通过六西格玛的改进步骤来改进注塑工艺。在此过程中,通过分析工具确定了两个关键工艺因素,即注射速度和冷却时间。在计算顾客的日常产品需求后,采用“实验设计”的方法找到最合适的参数。结果表明,该工艺能显著提高生产能力和产品收率。这个六西格玛项目成功的关键是项目实施者对实验的设计。
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引用次数: 0
PROJECT MANAGEMENT MATURITY AND PROJECT MANAGEMENT SUCCESS IN DEVELOPING COUNTRIES 发展中国家项目管理成熟度与项目管理成功
4区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-01 DOI: 10.7166/34-2-2760
Suzaan Pretorius, Herman Steyn, Taryn Jane Bond-Barnard
This paper explores whether organisations in a developing country have become more mature over time in their project management practices, and compares the current state to findings from a similar study conducted in 2010. It thus contributes to the scant literature on project management maturity in developing countries. Six hundred responses to a project management maturity questionnaire were used to investigate the perceived project management success of 9 389 projects. The results indicated that the perceived average project management maturity dropped from the 2010 value of 2.88 to 2.64 in 2020. Despite this, most of the projects surveyed were still perceived as successful. Keywords: Project management maturity, project management success, developing countries
本文探讨了发展中国家的组织是否随着时间的推移在项目管理实践中变得更加成熟,并将目前的状态与2010年进行的一项类似研究的结果进行了比较。因此,它有助于发展中国家项目管理成熟度方面的文献匮乏。对项目管理成熟度问卷的六百份回复被用来调查9389个项目的感知项目管理成功。结果表明,感知平均项目管理成熟度从2010年的2.88下降到2020年的2.64。尽管如此,大多数被调查的项目仍然被认为是成功的。关键词:项目管理成熟度,项目管理成功,发展中国家
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引用次数: 1
TECHNOLOGY TRANSFER PERSPECTIVES: THE KU LEUVEN CASE STUDY 技术转移视角:鲁汶案例研究
4区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-01 DOI: 10.7166/34-2-2836
Rigard Johan Steenkamp
The technology transfer office (TTO) is central to the Belgian university KU Leuven Research and Development (LRD) department, and is commendable with respect to the challenges of technology transfer. Together with the current industrial revolution, the case study focuses on a contemporary problem with several dimensions. Background is provided on philosophical perspectives, academic power, technology transfer platforms, and technology readiness. The exemplary characteristics of KU Leuven and evidence of impressive artefacts obtained through personal observation of the LRD are presented. Essentially, the case study explains the primary functions of a multidisciplinary TTO for effective technology transfer to ecosystems, with platforms such as the library, university hospitals, and others. Keywords: technology readiness, technology transfer, technology transfer office, technology transfer platforms
技术转移办公室(TTO)是比利时鲁汶大学研究与发展部(LRD)的中心,在技术转移的挑战方面值得称赞。结合当前的工业革命,案例研究集中在几个维度的当代问题上。背景提供了哲学观点,学术力量,技术转移平台和技术准备。鲁汶大学的典型特征和通过个人观察获得的令人印象深刻的人工制品的证据被提出。从本质上讲,本案例研究解释了多学科技术中心的主要功能,即通过图书馆、大学医院等平台向生态系统进行有效的技术转移。关键词:技术准备,技术转移,技术转移办公室,技术转移平台
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引用次数: 0
INVESTIGATING THE TECHNOLOGICAL GROWTH OF THE DRONE INDUSTRY IN SOUTH AFRICA 调查南非无人机行业的技术发展
4区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-01 DOI: 10.7166/34-2-2817
Quintin Mokoena, Ilesanmi Daniyan, Khumbulani Mpofu, Oluwayemisi Abisuga
The regulation of drones is a huge challenge for most countries around the world. The regulation and application processes are as much a challenge in South Africa as they are elsewhere. The number of drones is growing at a rapid pace, and there is a need to improve the current status to benefit from the technology. The purpose of this paper is to evaluate the South African drone industry and to propose recommendations to enhance drone technology in South Africa. The research design applied in this paper was qualitative. Data was collected by interviewing drone operators who were interested in participating in this study. This was done to understand the drone approval process in South Africa and the perceptions of drone operators. The results indicated that commercial drone operators are being negatively impacted by the drone approval structure in South Africa and that it is holding the industry back. Key factors affecting the existing drone approval structure were identified and used to propose the strategies for improvement. The findings in this study could assist stakeholders in the South African drone industry to make effective decisions and to formulate policies that would promote the technological growth of the industry. Keywords: Approval process, Drones, Regulation, Technological growth
对世界上大多数国家来说,无人机的监管是一个巨大的挑战。监管和申请程序在南非和在其他地方一样都是一个挑战。无人机的数量正在快速增长,有必要改善现状,以便从这项技术中受益。本文的目的是评估南非无人机行业,并提出建议,以提高南非无人机技术。本文采用的研究设计是定性的。数据是通过采访有兴趣参与这项研究的无人机操作员来收集的。这样做是为了了解南非的无人机审批程序和无人机运营商的看法。结果表明,商用无人机运营商正受到南非无人机审批结构的负面影响,并阻碍了该行业的发展。识别影响现有无人机审批结构的关键因素,并提出改进策略。本研究的结果可以帮助南非无人机行业的利益相关者做出有效的决策,并制定促进该行业技术增长的政策。关键词:审批流程,无人机,监管,技术增长
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引用次数: 0
CAPTURING THE REALITY OF INDUSTRY 4.0 READINESS DIMENSIONS AND INDICATORS IN A DEVELOPING COUNTRY: AN ANALYSIS OF APPLYING I4.0 IN INDONESIA 捕捉发展中国家工业4.0准备程度和指标的现实:对印尼工业4.0应用的分析
4区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-01 DOI: 10.7166/34-2-2846
Hasbullah Hasbullah, Salleh Ahmad Bareduan
Indonesia has the lowest Industry 4.0 (I4.0) readiness in South East Asia, and uses the INDI 4.0 instrument (Indonesia Industry 4.0 readiness index), which is not as comprehensive and accurate as it could be. An Initial survey confirmed that only 56.86% of respondents agreed that INDI 4.0 accurately measured readiness in manufacturing operations. Unlike the primary I4.0 indices, INDI 4.0 lacks comprehensive I4.0 dimensions and characteristics. This paper aims to identify the dimensions and indicators of I4.0 readiness to enhance INDI 4.0 through an exploratory mixed-method research approach with a multiphase research design. The first phase consisted of a qualitative approach through a documentary review, interviews, and observations to explore the dimensions and indicators of I4.0 readiness. This phase successfully identified four dimensions that experts, academics, and practitioners validated: technology, data life cycle, I4.0 design principles, and smart factory. These dimensions were broken down into 27 indicators of I4.0 readiness, then validated again through a statistical approach before being affirmed by a survey with a Pearson’s correlation > 0.361 and Cronbach’s alpha of 0.987, which indicated validity and reliability. The second phase, using a quantitative approach through a survey, confirmed the four dimensions and 27 indicators for measuring I4.0 readiness levels; these were ‘not ready’, ‘early stage’, ‘moderate readiness’, ‘readiness ripe’, and ‘already implemented’. This finding comprehensively measured I4.0 readiness based on feedback from industries struggling to adopt I4.0, especially in developing countries such as Indonesia. This finding also differed from existing indices (Acatech, RAMI 4.0, Dreamy, SIMMI 4.0. IMPULS) from developed countries and industries already stable in implementing I4.0. eywords: (Industry 4.0, I4.0 readiness indicators, INDI 4.0)
印度尼西亚是东南亚工业4.0 (I4.0)准备程度最低的国家,并且使用的是INDI 4.0工具(印度尼西亚工业4.0准备指数),该工具没有达到应有的全面和准确。一项初步调查证实,只有56.86%的受访者同意INDI 4.0准确地衡量了制造操作的准备程度。与工业4.0的主要指标不同,工业4.0缺乏全面的工业4.0维度和特征。本文旨在通过多阶段研究设计的探索性混合方法研究方法,确定工业4.0准备程度的维度和指标,以提高工业4.0水平。第一阶段包括定性方法,通过文献回顾、访谈和观察来探索工业4.0准备程度的维度和指标。这一阶段成功地确定了专家、学者和从业者验证的四个维度:技术、数据生命周期、工业4.0设计原则和智能工厂。这些维度被分解为工业4.0准备程度的27个指标,然后通过统计方法再次验证,然后通过Pearson相关性调查确认。0.361, Cronbach’s alpha为0.987,具有效度和信度。第二阶段,通过一项调查,采用定量方法,确定了衡量工业4.0准备水平的四个维度和27个指标;它们分别是“未准备好”、“早期阶段”、“准备适度”、“准备成熟”和“已经实施”。这一发现基于来自努力采用工业4.0的行业的反馈,全面衡量了工业4.0的准备情况,特别是在印度尼西亚等发展中国家。这一发现也不同于现有的指数(Acatech, RAMI 4.0, Dreamy, SIMMI 4.0)。来自发达国家和已经稳定实施工业4.0的行业。关键词:(工业4.0,工业4.0准备度指标,工业4.0)
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引用次数: 0
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South African Journal of Industrial Engineering
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