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A Digital Certificate System That Complies with International Standards: Taiwan Digital COVID-19 Certificate 符合国际标准的数字证书体系:台湾数字COVID-19证书

Standards Pub Date : 2023-09-27 DOI: 10.3390/standards3040024

Tzu-Chia Yu, I-Ming Parng, Jing-Sun Yeh, Gang-Wei Cao, Fu-Chung Wang

{"title":"A Digital Certificate System That Complies with International Standards: Taiwan Digital COVID-19 Certificate","authors":"Tzu-Chia Yu, I-Ming Parng, Jing-Sun Yeh, Gang-Wei Cao, Fu-Chung Wang","doi":"10.3390/standards3040024","DOIUrl":"https://doi.org/10.3390/standards3040024","url":null,"abstract":"The first reported infections from COVID-19 were in 2019 and, since then, an outbreak has spread rapidly to other parts of the world, resulting in many deaths. As a result, governments began to implement border restrictions and quarantine measures, bringing the travel industry to a halt and plunging the global economy into a severe contraction. Many regions chose to coexist with COVID-19 and gradually eased their border restrictions with certain conditions, such as using personal health status certificates, vaccination certificates, etc. Digital certificates are becoming a global trend, and Taiwan has invested in developing related tools. This paper presents a technical evaluation from the government’s point of view. Taiwan uses the European Union (EU) Digital COVID Certificate as a basis to build a digital certificate that can fully meet the residents’ current international business and tourism needs. The government hopes that this digital proof will promote the public’s return to normal life and overcome the inconveniences brought about by the COVID-19 pandemic. In the post-pandemic era, finding a way to coexist with the virus while gradually relaxing border and community epidemic-prevention policies without impacting our Taiwan’s medical capacity is a significant challenge. Providing key technological solutions to assist in risk stratification is essential in addressing this issue.","PeriodicalId":21933,"journal":{"name":"Standards","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135580014","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

Investigation on the Quality of Commercially Available GABA Tea in Taiwan 台湾市售GABA茶品质调查

Standards Pub Date : 2023-08-28 DOI: 10.3390/standards3030022

Mu-Chen Wu, Shih-Lun Liu, B. Liou, Chun-Yeh Chen, Yuh‐Shuen Chen

{"title":"Investigation on the Quality of Commercially Available GABA Tea in Taiwan","authors":"Mu-Chen Wu, Shih-Lun Liu, B. Liou, Chun-Yeh Chen, Yuh‐Shuen Chen","doi":"10.3390/standards3030022","DOIUrl":"https://doi.org/10.3390/standards3030022","url":null,"abstract":"This study collected 220 commercially available samples of γ-Aminobutyric acid (GABA) tea produced in Taiwan from 2016 to 2021. The 220 tea samples were categorized into five types of GABA tea, including 108 GABA Oolong tea, 71 GABA Black tea, 21 GABA Paochong tea, 12 GABA Green tea, and 8 GABA Puerh tea samples. The most common type of GABA tea in Taiwan is GABA Oolong tea, followed by GABA Black tea. The physico-chemical constituents and consumer acceptance of the GABA tea samples were analyzed. The GABA content varied among the different types of GABA tea: GABA Oolong tea ranged from 128–286 mg/100 g, GABA Black tea ranged from 182–360 mg/100 g, GABA Paochong tea ranged from 98–203 mg/100 g, GABA Green tea ranged from 56–174 mg/100 g, and GABA Puerh tea ranged from 142–191 mg/100 g. In terms of the commercial standard of GABA tea, 22 out of the 220 GABA tea samples failed to meet the commercial standard, with a failure rate of 10%. During the fermentation process of GABA tea, the contents of GABA increased significantly, but the total polyphenol and total catechin contents remained stable. In terms of consumer acceptance, GABA Black tea is the most accepted by consumers, followed by GABA Puerh tea, GABA Paochong, and GABA Oolong tea. The sour flavor in GABA tea is similar to the original sour sensory properties found in black tea. It is assumed that this is the main reason GABA Black tea has the highest acceptance.","PeriodicalId":21933,"journal":{"name":"Standards","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80651941","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

Unlocking Drone Potential in the Pharma Supply Chain: A Hybrid Machine Learning and GIS Approach 解锁无人机在制药供应链中的潜力:混合机器学习和GIS方法

Standards Pub Date : 2023-08-09 DOI: 10.3390/standards3030021

R. Bridgelall

{"title":"Unlocking Drone Potential in the Pharma Supply Chain: A Hybrid Machine Learning and GIS Approach","authors":"R. Bridgelall","doi":"10.3390/standards3030021","DOIUrl":"https://doi.org/10.3390/standards3030021","url":null,"abstract":"In major metropolitan areas, the growing levels of congestion pose a significant risk of supply chain disruptions by hindering surface transportation of commodities. To address this challenge, cargo drones are emerging as a potential mode of transport that could improve the reliability of the pharmaceutical supply chain and enhance healthcare. This study proposes a novel hybrid workflow that combines machine learning and a geographic information system to identify the fewest locations where providers can initiate cargo drone services to yield the greatest initial benefits. The results show that by starting a service in only nine metropolitan areas across four regions of the contiguous United States, drones with a robust 400-mile range can initially move more than 28% of the weight of all pharmaceuticals. The medical community, supply chain managers, and policymakers worldwide can use this workflow to make data-driven decisions about where to access the largest opportunities for pharmaceutical transport by drones. The proposed approach can inform policies and standards such as Advanced Air Mobility to help address supply chain disruptions, reduce transportation costs, and improve healthcare outcomes.","PeriodicalId":21933,"journal":{"name":"Standards","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73561086","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

Composition of Probabilistic Preferences in Multicriteria Problems with Variables Measured in Likert Scales and Fitted by Empirical Distributions 用李克特量表测量变量并用经验分布拟合的多准则问题中概率偏好的组成

Standards Pub Date : 2023-07-17 DOI: 10.3390/standards3030020

L. Gavião, A. P. Sant’Anna, G. B. A. Lima, P. Garcia

{"title":"Composition of Probabilistic Preferences in Multicriteria Problems with Variables Measured in Likert Scales and Fitted by Empirical Distributions","authors":"L. Gavião, A. P. Sant’Anna, G. B. A. Lima, P. Garcia","doi":"10.3390/standards3030020","DOIUrl":"https://doi.org/10.3390/standards3030020","url":null,"abstract":"The aim of this article is to demonstrate the advantages of the Composition of Probabilistic Preferences method in multicriteria problems with data from Likert scales. Multicriteria decision aids require a database as a decision matrix, in which two or more alternatives are evaluated according to two or more variables selected as decision criteria. Several problems of this nature use measures by Likert scales. Depending on the method, parameters from these data (e.g., means, modes or medians) are required for calculations. This parameterization of data in ordinal scales has fueled controversy for decades between authors who favor mathematical/statistical rigor and argue against the procedure, stating that ordinal scales should not be parameterized, and scientists from other areas who have shown gains from the process that compensates for this relaxation. The Composition of Probabilistic Preferences can allay the protests raised and obtain more accurate results than descriptive statistics or parametric models can bring. The proposed algorithm in R-code involves the use of probabilities with empirical distributions and fitting histograms of data measured by Likert scales. Two case studies with simulated datasets having peculiar characteristics and a real case illustrate the advantages of the Composition of Probabilistic Preferences.","PeriodicalId":21933,"journal":{"name":"Standards","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78509378","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

Improving Indoor Air Quality through Standardization 通过标准化改善室内空气质量

Standards Pub Date : 2023-07-03 DOI: 10.3390/standards3030019

J. Saffell, S. Nehr

{"title":"Improving Indoor Air Quality through Standardization","authors":"J. Saffell, S. Nehr","doi":"10.3390/standards3030019","DOIUrl":"https://doi.org/10.3390/standards3030019","url":null,"abstract":"Human beings experience a large fraction of their exposure to air pollutants in indoor environments. Air pollution is a large environmental health risk, and exposure to ambient air pollution and indoor air pollution contribute equally to the total number of fatalities worldwide. Although legislative authorities have established limit values for ambient outdoor air and stack emissions, there are inconsistent and variable national and regional limit values for gaseous substances and airborne particulate matter in the built environment (schools, homes, healthcare facilities, offices, and other public spaces). This lack of regulation is unsurprising, because indoor spaces are characterized by complex air chemistry, and their construction materials and types of activities vary significantly. The current understanding of indoor pollutants, including short-lived oxidants, degradation of VOCs, particle formation, and particle composition, is incomplete. It is necessary to identify and assess emerging pollutants and their toxicity, and to consider new consumer products and green construction materials and their impact on indoor air quality (IAQ). Learning from IAQ surveys and audit protocols, research methodologies should be regularized for cross-research comparisons. Some indoor air quality guidance and standards have been written, and several more are in development, with the international ISO 16000 series of indoor standards leading the way for improving indoor air data quality. The WHO has established some ambient air limit values which can mostly be translated into indoor limit values. The built environment needs to harmonize energy efficiency, thermal comfort and air quality standards and guidance. In this review, we discuss the next steps for improving international, regional and national standards and guidance, leading to better and more complete indoor air quality regulations.","PeriodicalId":21933,"journal":{"name":"Standards","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83015241","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

Assessment of EMF Troubles of Biological and Instrumental Medical Questions and Analysis of Their Compliance with Standards 生物和仪器医学问题的EMF问题评估及其符合标准的分析

Standards Pub Date : 2023-06-19 DOI: 10.3390/standards3020018

A. Razek

{"title":"Assessment of EMF Troubles of Biological and Instrumental Medical Questions and Analysis of Their Compliance with Standards","authors":"A. Razek","doi":"10.3390/standards3020018","DOIUrl":"https://doi.org/10.3390/standards3020018","url":null,"abstract":"This contribution aims to analyze compliance with the rules relating to disturbances in the domain of health due to exposure to electromagnetic fields (EMF). This concerns safety standards for exposed living tissue and the integrity of exposed medical devices acting on the body. This investigation is carried out by reviewing and analyzing these exposure effects. In the paper, the EMF exposure, the nature of sources and the characters of their interactions with objects are first illustrated. Then, EMF exposure restrictions accounting for living tissues safety standards as well as medical devices constancy are discussed. Exposure biological effects comprising both thermal and non-thermal effects are then detailed. The verification and control of EMF effects are next illustrated including mathematical modeling of EMF effects, governing equations and body tissues representation in the solution of these equations. At the end of the paper, two examples representing the cases of tissues and devices are given to check the rules under exposure to EMF: biological effects on exposed human tissues and integrity of a magnetic resonance imager under external disturbance.","PeriodicalId":21933,"journal":{"name":"Standards","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75098972","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: 2

Statistical Analysis of Wood Durability Data and Its Effect on a Standardised Classification Scheme 木材耐久性数据的统计分析及其对标准化分类方案的影响

Standards Pub Date : 2023-06-16 DOI: 10.3390/standards3020017

C. Brischke, Felix Haase, Lea Bächle, S. Bollmus

{"title":"Statistical Analysis of Wood Durability Data and Its Effect on a Standardised Classification Scheme","authors":"C. Brischke, Felix Haase, Lea Bächle, S. Bollmus","doi":"10.3390/standards3020017","DOIUrl":"https://doi.org/10.3390/standards3020017","url":null,"abstract":"The biological durability of wood is an important property for outdoor applications of wood-based products. In temperate climate zones, the most critical biological hazard is wood-destroying fungi, and the European standard EN 350 in combination with EN 113-2 provide guidance on sampling, testing, and classifying wood durability against brown and white rot fungi. However, in their latest revised versions, both standards recommend the use of probability density functions for fitting mass loss data (ML). Subsequently, the durability of wood and its variability should be further characterised. The aim of this study was to statistically analyse the ML data from laboratory agar plate tests with different European-grown wood species and to examine the effect of different statistical treatments on the standardised classification scheme of wood durability. It was concluded that more precise guidance is needed on the sampling procedure since significant differences in durability exist between stem zones. The assignment of dispersion indicators requires a revision to ensure clear, unmistakable, and reproducible durability classification of wood. Deficits in the description of the proposed statistical treatments in both standards became evident. It can be questioned whether the application of probability density functions provides additional information about the variability of wood durability.","PeriodicalId":21933,"journal":{"name":"Standards","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75194522","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

A Multicriteria Standard to Rank Plea Bargain Proposals 辩诉交易提案排名的多标准

Standards Pub Date : 2023-06-06 DOI: 10.3390/standards3020016

A. P. Sant’Anna, L. Gavião, Tiago Lezan Sant’Anna

引用次数: 0

Service Quality Methods and Practices to Improve Library Administration: A Pilot Study 改进图书馆管理的服务质量方法与实践:一项试点研究

Standards Pub Date : 2023-05-29 DOI: 10.3390/standards3020015

Chao-Chung Ho, Yi-Horng Lai, Ming-Shu Chen

{"title":"Service Quality Methods and Practices to Improve Library Administration: A Pilot Study","authors":"Chao-Chung Ho, Yi-Horng Lai, Ming-Shu Chen","doi":"10.3390/standards3020015","DOIUrl":"https://doi.org/10.3390/standards3020015","url":null,"abstract":"The aim of this study is to identify the differentiated services university libraries are able to offer students by prioritizing service quality factors using the various dimensions and factors of service quality. The paper proposes a study that adopts the Parasuraman, Zeithaml, and Berry (PZB) service quality model to construct a model for measuring the service quality of a university library. The study conducts analysis using an expert questionnaire and the Analytic Hierarchy Process (AHP) to identify students’ needs with respect to the library’s service quality. This study covered 44 different graduate institutes, but it is aimed at postgraduate student-oriented university libraries, which may not reveal the real status of different types of libraries. The five dimensions of service quality identified in this study by order of importance are responsiveness, tangibility, reliability, assurance, and empathy. The first three criteria of the twenty-two assessment criteria are “The staff is unwilling to help students”, “The library’s facilities match up with the type of services” and “Students are unable to receive fast services from staff”. This article seeks to provide innovative methods for previous library management in the university library and the research results could also provide useful references with social implications and novel value to the university library’s management team to improve the library’s service quality.","PeriodicalId":21933,"journal":{"name":"Standards","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135832198","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

“Zero Residue” Concept—Implementation and Certification Challenges “零残留”概念-实施和认证挑战

Standards Pub Date : 2023-05-17 DOI: 10.3390/standards3020014

I. Djekic, N. Smigic, Bozidar Udovicki, N. Tomić

引用次数: 0