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Ethereum Smart Contract Deployment for a Real Estate Management System (REMS) Implemented in Blockchain 在区块链中实现的房地产管理系统(REMS)的以太坊智能合约部署
IF 0.7 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-08-28 DOI: 10.18421/tem123-18
A. Aliti, M. Apostolova, A. Luma, Azir Aliu, M. Fetaji, Halil Snopçe
The real industry is crucial sector of the world wide financial system, with significant economic, social and environmental implications. However, real estate transactions are often slow, complex and costly and can be prone to fraud errors, which can lead to significant financial losses and legal disputes. This paper proposes the adoption of blockchain technology in real estate cadastral systems as a solution to the challenges encountered in managing property ownership and transactions. We have described the implementation of our prototype called REMS (Real Estate Management System) and we have presented the deployment of smart contracts in Ethereum platform. Based on measurement, benchmarks and other observation of the system, we have evaluated the server usage of the blockchain network and decided whether Blockchain-as-a-Service (BaaS) should be involved or not in our system. The study results demonstrate the successful implementation of a real estate management system (REMS) using blockchain technology and Ethereum's smart contracts. This study is important because it confirms that similar solutions can be implemented in other areas of public administration, where the structure of the work is similar, i.e. where we deal with issuing documents to citizens.
实体产业是全世界金融体系的关键部门,具有重大的经济、社会和环境影响。然而,房地产交易往往缓慢、复杂且成本高昂,而且容易出现欺诈错误,从而导致重大财务损失和法律纠纷。本文建议在房地产地籍系统中采用区块链技术,以解决在管理财产所有权和交易方面遇到的挑战。我们已经描述了我们的原型REMS(房地产管理系统)的实现,并介绍了智能合约在以太坊平台中的部署。基于对系统的测量、基准测试和其他观察,我们评估了区块链网络的服务器使用情况,并决定区块链即服务(BaaS)是否应参与我们的系统。研究结果证明了使用区块链技术和以太坊智能合约的房地产管理系统(REMS)的成功实施。这项研究很重要,因为它证实了类似的解决方案可以在公共行政的其他领域实施,这些领域的工作结构相似,即我们处理向公民发放文件的问题。
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引用次数: 0
Intrinsic Motivations of Airbnb Hosts from the Perspective of Millennial Guests in Lima – Peru 从秘鲁利马千禧一代房客的视角看Airbnb房东的内在动机
IF 0.7 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-08-28 DOI: 10.18421/tem123-59
Yajaira Paulina Navarro-Mendoza, R. M. Esparza-Huamanchumo, R. Hernández-Rojas
This study aims to analyze the host’s intrinsic motivations of the sharing accommodation Airbnb in the Miraflores district – Lima, from the perspective of millennial guests. Lima, capital of Peru, was selected since the economy of the city is based on a large part of visitors and tourists who enjoy its cultural, natural, gastronomic attractions and modern life. For this research, a qualitative approach was used, through content analysis, such as 258 reviews left by guests of the millennial segment who spent at least one night in the sharing accommodations of Miraflores district Airbnb’s hosts were analyzed. The collected information were processed by the Atlas.ti software where three main intrinsic motivations were identified: Altruism, Social Interaction and Cultural Capital. It is worth mentioning that disseminating and communicating messages related to the intrinsic motivations of the host is key for sharing accommodations, such as Airbnb. It allows us to understand how to attract new hosts, potential sharing accommodation entrepreneurs.Also, it promotes that current guests become hosts, and thus maintain the economic stability and growth of this business model.
本研究旨在从千禧一代客人的角度分析房东在利马米拉弗洛雷斯区共享住宿Airbnb的内在动机。秘鲁首都利马之所以被选中,是因为该市的经济依赖于大部分游客,他们喜欢这里的文化、自然、美食和现代生活。在这项研究中,通过内容分析,采用了定性方法,例如分析了千禧一代客人留下的258条评论,这些客人在米拉弗洛雷斯区Airbnb房东的共享住宿中至少住了一晚。收集到的信息由Atlas.ti软件处理,其中确定了三个主要的内在动机:利他主义、社会互动和文化资本。值得一提的是,传播和沟通与房东内在动机有关的信息是共享住宿的关键,比如Airbnb。它让我们了解如何吸引新的东道主,潜在的共享住宿企业家。此外,它还促进了现有客人成为东道主,从而保持了这种商业模式的经济稳定和增长。
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引用次数: 0
The List Length Effect and Immediate Free Recall of Visually Displayed Information in Various Forms 列表长度效应与各种形式视觉显示信息的即时自由回忆
IF 0.7 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-08-28 DOI: 10.18421/tem123-34
Petr Bartoš, M. Gangur
This paper investigated four main phenomena connected with the free immediate recall and visual representation of the information: list-length effect, serial position effect, horizontal versus vertical presentation of the information, expression of the information in the form of the symbol, text, and symbol with text. The number of examined respondents was 4140. The experiment revealed a different memory recall of various forms of visually displayed information and studied a dependency of list length effect on primacy and recency effect. The results showed that people recall better the combination of symbols and text than only text or symbols. The other finding indicated a significant difference between the number of recalled items in the tests of 5, 7, and 9 items. The respondents recalled the highest number of items in 5-item tests and the lowest number in 9-item tests. There was investigated that the proportions of the respondents recalling the items from the beginning is higher than those of the respondents recalling the items from the end. The results showed that the primacy effect was higher than the recency effect regardless of the list length (5, 7, or 9 items tests). This article's findings should help design visually optimized websites and applications.
本文研究了与信息的自由即时回忆和视觉表示有关的四个主要现象:列表长度效应、序列位置效应、信息的水平与垂直呈现、信息以符号形式的表达、文本以及符号与文本的关系。接受调查的受访者人数为4140人。该实验揭示了对各种形式的视觉显示信息的不同记忆回忆,并研究了列表长度效应对前序和后序效应的依赖性。结果表明,人们回忆符号和文本的组合比只回忆文本或符号更好。另一项发现表明,在5项、7项和9项测试中,召回项目的数量存在显著差异。受访者在5项测试中回忆的项目数最高,在9项测试中回想的项目数最低。调查发现,受访者从一开始回忆物品的比例高于从最后回忆物品的受访者。结果表明,无论列表长度如何(5、7或9项测试),首要效应都高于近因效应。这篇文章的发现应该有助于设计可视化优化的网站和应用程序。
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引用次数: 0
Go-Chemist! App and Its Impact on Students’ Attitudes Toward Chemistry Go-Chemist !App及其对学生化学态度的影响
IF 0.7 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-08-28 DOI: 10.18421/tem123-45
I. Irwanto, A. Afrizal, Iing Lukman, Darius Agung, Rudi Suhartono Wijayako
The current study aims to explore the impact of using the Go-Chemist! app on students’ attitudes toward chemistry on colligative properties. This pretest-posttest quasi-experimental design study involved 71 twelfth-grade students in Jakarta, Indonesia. One class was randomly assigned to a treatment group which was taught using a mobile application and another class was assigned to a comparison group which was taught using e-books. The Attitude Toward Chemistry Lessons Scale (ATCLS) was administered before and after instruction to both groups. To analyze the data, we employed independent and paired sample t-tests. The results indicated that after the intervention, the gap in attitude scores between the two groups was statistically significant in favor of the intervention group. Students in the treatment group also showed a statistically significant improvement in average scores from pre- to post-administration with a large effect size. This reflected the use of the Go-Chemist! app effectively increases students’ positive attitudes toward chemistry lessons on the topic of colligative properties.
目前的研究旨在探索使用Go-Chemist!依数性质对学生化学态度的影响。本研究以印度尼西亚雅加达的71名12年级学生为研究对象,采用前测后测准实验设计。一个班级被随机分配到使用移动应用程序教学的治疗组,另一个班级被分配到使用电子书教学的比较组。在教学前后分别对两组进行化学课态度量表(ATCLS)测试。为了分析数据,我们采用了独立和配对样本t检验。结果表明:干预后,两组态度得分差异有统计学意义,干预组得分优势显著。治疗组学生的平均得分从给药前到给药后也有统计学上的显著改善,效应量很大。这反映了Go-Chemist!App有效地提高了学生对依数性化学课的积极态度。
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引用次数: 0
Process Modeling for Crisis Management 危机管理的过程建模
IF 0.7 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-08-28 DOI: 10.18421/tem123-27
J. Myslin, Martin Hrinko, Kamila Vendula Muziková, Petra Rajlová
Crisis management is one form of management. It is applied in situations that we refer to as crisis. A crisis is a stressful situation for all interested parties, in which there is a greater or lesser threat to the values and assets. Coping with a crisis situation depends on many factors, while preparation is absolutely necessary, which must be done at a time when there is no crisis and ideally there is no threat. This preparation must also include the definition of crisis processes, i.e. the description of the behavior of each subject. At the time of crisis activation, everyone must know what rights and obligations they have and how they should fulfill these tasks. For the definition and description of these processes, it is possible to use proven means of process modeling, which have been used for a long time in many fields of human activity. An appropriately described process model, or a complex process map, can then be the optimal source of information for all entities.
危机管理是管理的一种形式。它适用于我们称之为危机的情况。危机是所有利益相关方都感到压力的情况,在这种情况下,价值和资产受到或大或小的威胁。应对危机情况取决于许多因素,而准备是绝对必要的,必须在没有危机的时候完成,最好没有威胁。这种准备还必须包括危机过程的定义,即描述每个主体的行为。在危机激活时,每个人都必须知道自己有哪些权利和义务,以及应该如何履行这些任务。对于这些过程的定义和描述,可以使用经过验证的过程建模方法,这些方法已经在人类活动的许多领域中使用了很长时间。然后,适当描述的流程模型或复杂的流程图可以成为所有实体的最佳信息源。
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引用次数: 0
Technical Review of Radio Frequency Identification and Internet of Things Technologies in Business Operations and Automated Indoor Location 射频识别和物联网技术在商业运营和自动化室内定位中的技术综述
IF 0.7 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-08-28 DOI: 10.18421/tem123-01
Andreea-Alina Cornea, Alexandru Marius Obretin
The technological diversity applied in practical examples entails the identification and the analysis of different implementation options, thus opening the way to a world of technology. The goal of this paper is to spot novel prospects for incorporating sensors and Big Data techniques for better property administration strategies, through an indoor localization and navigation architecture. The hereby analysis uses an approach that combines Radio Frequency Identification technology, performance efficient algorithms for calculating routes in very large datasets, methodologies for optimizing spatial representations and Internet of Things specific hardware distribution techniques to properly address challenging logistics issues and complex facilities management. The proposed solution is tailored for a large underground parking area in a commercial center, enabling easy car location identification, automatic parking time calculation and dynamically determined occupancy levels, along with descriptive statistics about busy time intervals or visiting patterns.
在实际例子中应用的技术多样性需要查明和分析不同的执行办法,从而开辟通往技术世界的道路。本文的目标是通过室内定位和导航架构,发现结合传感器和大数据技术的新前景,以更好地管理物业策略。本文的分析使用了一种方法,结合了射频识别技术、在非常大的数据集中计算路线的高效算法、优化空间表示的方法和物联网特定硬件分布技术,以适当解决具有挑战性的物流问题和复杂的设施管理。该解决方案是为商业中心的大型地下停车场量身定制的,能够轻松识别车辆位置,自动停车时间计算和动态确定入住率,以及关于繁忙时间间隔或访问模式的描述性统计数据。
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引用次数: 0
Enhancements to the Work Ability of a High-Speed Motor Used in Machine Tools 机床用高速电机工作性能的提高
IF 0.7 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-08-28 DOI: 10.18421/tem123-24
W. Purwanto, Y. Herlambang, Kristine Mae Paboreal Dunque, Firoj Mulani, Dwi Sudarno Putra, M. Martias
This paper presents a strategy for maximizing the effectiveness of high-speed spindle motors in manufacturing equipment. Using the ideal design of the stator winding geometry, as calculated by the Taguchi method, we were able to increase the maximum torque and efficiency. The rotor slot geometry was optimized using a response surface to raise the starting torque and reduce the starting current. The objectives of this investigation were to come up with a strategy for designing high-speed spindle motors so that they have better performance in terms of starting torque, maximum torque, efficiency, and starting current. Spindle motor temperature rise was the focus of the thermal measurements. Finally, a working spindle motor prototype was built and tested to verify the results of the Finite element analysis (FEA). The validity of the suggested model is demonstrated by a comparison between experimental measurements and finite element findings. The total percentage of mistakes was close to 2%.
本文提出了一种在制造设备中最大限度地提高高速主轴电机效率的策略。使用田口法计算的定子绕组几何结构的理想设计,我们能够提高最大转矩和效率。使用响应面对转子槽的几何形状进行了优化,以提高起动转矩并减小起动电流。本研究的目的是提出一种设计高速主轴电机的策略,使其在起动转矩、最大转矩、效率和起动电流方面具有更好的性能。主轴电机的温升是热测量的焦点。最后,建立了工作主轴电机样机并进行了测试,验证了有限元分析的结果。实验测量结果与有限元结果的比较证明了所提出模型的有效性。错误的总百分比接近2%。
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引用次数: 0
An Overview and Comparison of Selected State-of-the-Art Algorithms Inspired by Nature 受自然启发的选定最先进算法的概述和比较
IF 0.7 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-08-28 DOI: 10.18421/tem123-07
M. Gulić, Martina Žuškin, Vilim Kvaternik
Optimization is essential in various fields such as finance, transportation, energy, and health care. However, solving real optimization problems, especially nondeterministic polynomial, requires considerable computational resources. Metaheuristics provide fast and cost-effective solutions to these problems. In this paper, eight state-of-the-art nature-inspired metaheuristic algorithms that have demonstrated excellent performance are compared in detail. In addition, a novel tournament procedure has been proposed to produce a quality ranking of selected metaheuristic algorithms, which are compared based on their optimization results, even if they were not originally tested with the same set of test functions, but only partially. The selected algorithms are evaluated using thirty-two test functions, which is a representative sample size. The evaluation also showed that while one algorithm produced the best overall results, this does not mean that this algorithm is the best for solving each function. This also highlights the need for further research in metaheuristic algorithms.
优化在金融、交通、能源和医疗等各个领域都是必不可少的。然而,解决实际的优化问题,特别是不确定多项式,需要大量的计算资源。元启发式为这些问题提供了快速且经济有效的解决方案。本文详细比较了八种性能优异的最先进的自然启发元启发式算法。此外,还提出了一种新的竞赛程序,对选定的元启发式算法进行质量排名,并根据其优化结果进行比较,即使它们最初没有使用相同的测试函数集进行测试,但只是部分测试。所选择的算法使用32个测试函数进行评估,这是一个代表性的样本量。评估还表明,虽然一种算法产生了最好的总体结果,但这并不意味着该算法是解决每个函数的最佳算法。这也突出了对元启发式算法进行进一步研究的必要性。
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引用次数: 0
Aawn: An Interactive Mobile Application for Improving the Communication Skills of Arab Children with Autism Aawn:一个用于提高阿拉伯自闭症儿童沟通技能的交互式移动应用程序
IF 0.7 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-08-28 DOI: 10.18421/tem123-10
Arwa M. Wali, Modi Alfrihidi, Nada Alasiri, Najah Alsabei
Autism spectrum disorder (ASD) is a neurodevelopmental disorder that causes challenges in communication and social interaction. Since there is no single treatment for autism, autistic children need extra attention from their parents or caregivers to overcome their linguistic deficiency. Scientific studies have shown that technology-based educational methods are effective and can lead to a significant improvement, especially for autistic children. In recent years, an increasing number of mobile and multimedia applications have been developed to enhance autistic children's verbal communication, emotions, social behavior, and interaction skills. However, many of these systems are either in English or in local autistic children’s native languages. Others are designed to promote specific knowledge, i.e., emotions, or are limited in their features. This paper designs and implements a prototype for Arabic mobile application, called Aawn, to help and improve Arab autistic children's, in their own language, communication and emotions, as well as educational and organizational skills. Aawn is integrated with various supporting technologies based on the Picture Exchange Communication System (PECS) and augmented with graphical features. The system is built and developed using Android Studio and various cloud-based tools. The system can be extended by artificial intelligence (AI) technologies.
自闭症谱系障碍(ASD)是一种神经发育障碍,会在沟通和社交方面带来挑战。由于自闭症没有单一的治疗方法,自闭症儿童需要父母或照顾者的额外关注,以克服他们的语言缺陷。科学研究表明,以技术为基础的教育方法是有效的,可以带来显著的改善,尤其是对自闭症儿童。近年来,越来越多的移动和多媒体应用程序被开发出来,以增强自闭症儿童的言语交流、情绪、社交行为和互动技能。然而,这些系统中的许多要么是英语,要么是当地自闭症儿童的母语。另一些则是为了促进特定的知识,即情感,或者在其特征上受到限制。本文设计并实现了一个名为Aawn的阿拉伯语移动应用程序原型,以帮助和提高阿拉伯自闭症儿童的语言、沟通和情感,以及教育和组织技能。Aawn集成了基于图片交换通信系统(PECS)的各种支持技术,并增加了图形功能。该系统是使用Android Studio和各种基于云的工具构建和开发的。该系统可以通过人工智能技术进行扩展。
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引用次数: 0
Social Media as a Medium for Disseminating Community Awareness of Environmental Issues in Malaysia 社交媒体作为传播马来西亚社区环境问题意识的媒介
IF 0.7 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-08-28 DOI: 10.18421/tem123-47
H. Mahat, Siti Wardah Hussein, Y. Saleh, M. Hashim, N. Nayan, Z. Said, E. Kurniawan
This study aims to identify the effectiveness of the use of social media as a medium to deliver awareness on environmental issues among the community in Malaysia. A survey with a questionnaire was used in the quantitative approach used in this research. The study sample, which employed a simple random sampling technique, consisted of 400 members of the Malaysian population. There was a combination of descriptive (mean, percentage) and inferential (regression) analysis. According to the study's findings, the majority of respondents use the Facebook social network to learn about environmental concerns. Furthermore, the linear regression analysis revealed that system quality, service quality, and information quality all had a significant role in customer satisfaction. In conclusion, this study clearly reveals that a large population in Malaysia responds positively to the use of social media as a medium for conveying environmental awareness with Facebook is the primary social media platform chosen by most people in Malaysia to obtain information about environmental issues.
本研究旨在确定使用社交媒体作为媒介的有效性,以提高马来西亚社区对环境问题的认识。在本研究中使用的定量方法中使用了问卷调查。研究样本采用了简单的随机抽样技术,由400名马来西亚人组成。描述性(平均值,百分比)和推理性(回归)分析相结合。根据这项研究的发现,大多数受访者使用Facebook社交网络来了解环境问题。此外,线性回归分析显示,系统品质、服务品质、资讯品质对顾客满意皆有显著影响。综上所述,这项研究清楚地揭示了马来西亚的大量人口对使用社交媒体作为传达环境意识的媒介做出了积极的反应,Facebook是马来西亚大多数人选择的主要社交媒体平台,以获取有关环境问题的信息。
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引用次数: 1
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TEM Journal-Technology Education Management Informatics
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