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Comparative Analysis of Two Different Combinations of Pretreatment Methods for Treating Recycled Concrete Aggregates 处理再生混凝土骨料的两种不同预处理方法组合的比较分析
Pub Date : 2024-02-12 DOI: 10.17485/ijst/v17i6.2703
Suyog C Dharmadhikari, S. S. Jamkar
Objectives: This research is aimed at comparing the performance of two sets of treatments. The first set of treatments tests the performance of heated, abrasioned, and fly ash-treated recycled concrete aggregates (RCA), while the other set of treatments examines the performance of heated, abrasioned, and silica fume-treated aggregates. Though previous research has examined the performance of the standalone treatment methods for enhancing RCA properties, there is a research gap that attempts to study the performance of the combinations of various treatments and their merits. To bridge the gap in the literature, this study compares the combination of two sets of treatment methods to investigate the relative effectiveness of the combination of the treatment methods that can improve RCA properties. Methods: The study was conducted using the concrete mix design procedure outlined in IS 10262-2019 in the laboratory. As part of the experimentation program, a total of 24 sample cubes were casted and tested. Findings: A 14.5% reduction in water absorption was observed for 10mm heated, abrasioned, and fly ash-treated aggregates, whereas a 15.2% reduction in water absorption was observed for 20mm heat-treated, abrasioned, and fly ash-treated aggregates compared to untreated aggregates. Similarly, for heat-treated, abrasioned, and silica fume-treated aggregates, a 41.7% reduction in water absorption was observed for 10mm aggregates, and a 45% reduction was observed for 20mm aggregates over untreated aggregates. A 133% increase in slump value was observed for heated, abrasioned, and fly ash-treated aggregates, whereas a 150% increase in slump value was observed in the case of heated, abrasioned, and silica fume-treated aggregates. Further, a 150 % increase in compressive strength was observed for heated, abrasioned, and fly ash-treated aggregates, and a 165% increase in compressive strength was observed for heated, abrasioned, and silica fume-treated aggregates over untreated aggregates. Novelty: This research addresses the ninth United Nations Sustainability Development Goal, i.e., Industry, Innovation, and Infrastructure, as it promotes the use of eco-friendly construction practices. Moreover, the present research offers a manifold contribution to the state-of-the-art literature on construction management and offers numerous implications for the construction industry. Keywords: Recycled concrete aggregates, Silica fume treatment, Fly ash treatment, Water absorption, Workability, Compressive strength
研究目的本研究旨在比较两组处理方法的性能。第一组处理方法测试经加热、研磨和粉煤灰处理的再生混凝土集料(RCA)的性能,而另一组处理方法则测试经加热、研磨和硅烟处理的集料的性能。虽然之前的研究已经考察了增强 RCA 性能的独立处理方法的性能,但在尝试研究各种处理方法的组合性能及其优点方面还存在研究空白。为了弥补文献空白,本研究比较了两套处理方法的组合,以探究组合处理方法在改善 RCA 性能方面的相对有效性。研究方法研究采用 IS 10262-2019 中概述的混凝土混合设计程序在实验室进行。作为实验计划的一部分,共浇注和测试了 24 个样方。研究结果与未处理的骨料相比,10 毫米加热、磨蚀和粉煤灰处理骨料的吸水率降低了 14.5%,而 20 毫米加热、磨蚀和粉煤灰处理骨料的吸水率降低了 15.2%。同样,与未经处理的集料相比,经过热处理、研磨和硅烟处理的 10 毫米集料的吸水率降低了 41.7%,20 毫米集料的吸水率降低了 45%。经加热、研磨和粉煤灰处理的集料的坍落度值增加了 133%,而经加热、研磨和硅烟处理的集料的坍落度值增加了 150%。此外,经加热、研磨和粉煤灰处理的集料的抗压强度比未经处理的集料增加了 150%,经加热、研磨和硅烟处理的集料的抗压强度比未经处理的集料增加了 165%。新颖性:本研究针对联合国第九个可持续发展目标,即 "工业、创新和基础设施",因为它促进了生态友好型建筑实践的使用。此外,本研究还对建筑管理方面的最新文献做出了多方面的贡献,并对建筑行业产生了诸多影响。关键词再生混凝土骨料 硅灰处理 粉煤灰处理 吸水性 工作性 抗压强度
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引用次数: 0
Design, Development and Validation of a Digital Performance Based Appraisal System: A Planned Approach in Change Management 数字化绩效评估系统的设计、开发和验证:变革管理中的计划方法
Pub Date : 2024-02-12 DOI: 10.17485/ijst/v17i6.2711
C. G. Betsurmath, Hadal Kumaraswamy Mamatha, Saravanabau Chidambaram, Vishwanath Prashant
Objectives: In India, the professional performance of the academic faculty is assessed annually using Academic Performance Indicator (API) as per the University Grants Commission (UGC), Government of India. This is a manual model is cumbersome in filling, and time-consuming. As a planned change and a measure to introduce technology-based platforms in JSS Academy of Higher Education & Research (JSSAHER), Mysuru, India, we have designed, developed, and validated digital platform technology to evaluate the annual performance of faculty working in medical, dental, pharmacy, life sciences fraternities. Methods: Academic Performance Indicator (API) guideline as per the University Grants Commission (UGC), Government of India, was used to design and develop the digital performance-based appraisal system (d-PBAS), and its performance was validated (20% random sampling) by comparing the manual and digital data entered by the faculty from different disciplines of JSSAHER. Findings: The present manuscript demonstrates the designing and validation methodology of d-PBAS. Software Development Life Cycle (SDLC) process and Waterfall model was adopted to develop d-PBAS. The digital platform was assessed for the performance and ranking of the faculty. More than 96% of the users expressed satisfaction and 4% expressed dissatisfaction in d-PBAS. Novelty: For the first of its kind in a university set up in India, JSSAHER designed and validated the digital performance-based appraisal system to evaluate academic performance. Since d-PBAS was developed using the SDLC process and Waterfall model it is easy and consumes less time to enter the data. The most important highlight is d-PBAS helps to rank the faculty performance automatically. The design and validation of d-PBAS described in the present manuscript are simple, robust, cost-effective, and have a go-green value. Keywords: Change Management, Higher Education Institutions, Performance­based, Appraisal System, academic Performance Indicator, digital technology
目的:在印度,根据印度政府大学教育资助委员会(UGC)的规定,每年都要使用学术绩效指标(API)对学术教师的专业绩效进行评估。这是一种手工模式,填写繁琐且耗时。作为印度迈苏鲁 JSS 高等教育与研究学院(JSSAHER)的一项计划变革和引入技术平台的措施,我们设计、开发并验证了数字平台技术,用于评估在医学、牙科、药学和生命科学兄弟会工作的教师的年度绩效。评估方法根据印度政府大学教育资助委员会(UGC)的学术绩效指标(API)指南,设计并开发了基于绩效的数字评估系统(d-PBAS),并通过比较 JSSAHER 不同学科教师输入的手工数据和数字数据,对其绩效进行了验证(20% 随机抽样)。研究结果:本手稿展示了 d-PBAS 的设计和验证方法。软件开发生命周期(SDLC)流程和瀑布模型被用于开发 d-PBAS。对数字平台的性能和教师排名进行了评估。超过 96% 的用户对 d-PBAS 表示满意,4% 表示不满意。新颖性:JSSAHER 在印度的大学中首次设计并验证了基于绩效的数字化评估系统,以评估学术绩效。由于 d-PBAS 是采用 SDLC 流程和瀑布模型开发的,因此输入数据既简单又省时。最重要的亮点是,d-PBAS 可自动对教师的绩效进行排名。本手稿中描述的 d-PBAS 的设计和验证简单、稳健、经济高效,具有绿色价值。关键词变革管理;高等教育机构;基于绩效的评估系统;学术绩效指标;数字技术
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引用次数: 0
Big Data Analytics for Heart Disease Prediction using Regularized Principal and Quadratic Entropy Boosting 利用正则化主值和二次熵提升进行心脏病预测的大数据分析
Pub Date : 2024-02-12 DOI: 10.17485/ijst/v17i6.2928
P. Muthulakshmi, M. Parveen
Objectives: Over the past few years, there prevails an abundance wealth of big data obtained via patients' electronic health records. One of the leading causes of mortality globally is the cardiovascular disease. Based on the present test and history cardiovascular disease diagnosing of patients can be done. Therefore, early and quick diagnosis can reduce the mortality rate. To address their needs, several machine learning methods have been employed in the recent past in cardiovascular disease diagnosis and prediction. Previous research was also concentrated on acquiring the significant features to heart disease prediction however less importance was given to the time involved and error rate to identifying the strength of these features. Methods: In this work we plan to develop a method called, Regularized Principal Component and Quadratic Weighted Entropy Boosting (RPC-QWEB) for predicting heart disease. Initially in RPC-QWEB, relevant features are selected to avoid missing values in the input database by employing Regularized Principal Component Regressive Feature Selection (RPCRFS). Second, with the obtained dimensionality reduced features, Quadratic Weighted Entropy Boosting Classification (QWEBC) process is carried out to classify the patient data as normal or abnormal. The QWEBC process is an ensemble of several weak classifiers (i.e., Quadratic Classifier). The weak classifier results are combined to form strong classifier and provide final prediction results as normal or abnormal condition with minimal error rate. Findings: Experimental evaluation is carried out on factors with the cardiovascular disease dataset such as heart disease prediction accuracy, heart disease prediction time, sensitivity, error rate with respect to distinct numbers of patient data. The proposed RPC-QWEB method was compared with existing Heart Disease Prediction Framework (HDPF) and Swarm Artificial Neural Network (Swarm-ANN). Novelty: RPC-QWEB method outperforms the conventional learning methods in terms of numerous performance matrices. The RPC-QWEB method produces 3% and 5% increase in terms of accuracy and sensitivity and 7% and 29% reduced prediction time and error rate as compared to the existing benchmark methods. We may use this method to predict the heart disease at early stage there by we can reduce the death rate. Keywords: Big data, Regularized Principal Component, Quadratic Weighted Entropy Boosting, Regressive Feature Selection, Classification
目的:在过去几年中,通过病人的电子健康记录获得了大量丰富的大数据。心血管疾病是导致全球死亡的主要原因之一。根据目前的检查和病史,可以对患者进行心血管疾病诊断。因此,早期快速诊断可以降低死亡率。为了满足这些需求,近年来在心血管疾病诊断和预测方面采用了多种机器学习方法。以往的研究也集中在获取心脏病预测的重要特征上,但对识别这些特征的强度所需的时间和错误率却不太重视。方法:在这项工作中,我们计划开发一种名为正则化主成分和二次加权熵提升(RPC-QWEB)的方法,用于预测心脏病。在 RPC-QWEB 中,首先通过使用正则化主成分递归特征选择(RPCRFS)来选择相关特征,以避免输入数据库中的缺失值。其次,利用获得的降维特征,进行二次加权熵提升分类(Quadratic Weighted Entropy Boosting Classification,QWEBC)过程,将患者数据分类为正常或异常。QWEBC 流程是多个弱分类器(即二次分类器)的集合。弱分类器的结果组合成强分类器,以最小的错误率提供正常或异常的最终预测结果。研究结果利用心血管疾病数据集对各种因素进行了实验评估,如心脏病预测准确率、心脏病预测时间、灵敏度、与不同数量患者数据相关的错误率。提出的 RPC-QWEB 方法与现有的心脏病预测框架(HDPF)和蜂群人工神经网络(Swarm-ANN)进行了比较。新颖性:RPC-QWEB 方法在众多性能矩阵方面优于传统学习方法。与现有的基准方法相比,RPC-QWEB 方法的准确度和灵敏度分别提高了 3% 和 5%,预测时间和错误率分别减少了 7% 和 29%。我们可以利用这种方法在早期预测心脏病,从而降低死亡率。关键词大数据 正则化主成分 二次加权熵提升 回归特征选择 分类
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引用次数: 0
Comparative Analysis of Two Different Combinations of Pretreatment Methods for Treating Recycled Concrete Aggregates 处理再生混凝土骨料的两种不同预处理方法组合的比较分析
Pub Date : 2024-02-12 DOI: 10.17485/ijst/v17i6.2703
Suyog C Dharmadhikari, S. S. Jamkar
Objectives: This research is aimed at comparing the performance of two sets of treatments. The first set of treatments tests the performance of heated, abrasioned, and fly ash-treated recycled concrete aggregates (RCA), while the other set of treatments examines the performance of heated, abrasioned, and silica fume-treated aggregates. Though previous research has examined the performance of the standalone treatment methods for enhancing RCA properties, there is a research gap that attempts to study the performance of the combinations of various treatments and their merits. To bridge the gap in the literature, this study compares the combination of two sets of treatment methods to investigate the relative effectiveness of the combination of the treatment methods that can improve RCA properties. Methods: The study was conducted using the concrete mix design procedure outlined in IS 10262-2019 in the laboratory. As part of the experimentation program, a total of 24 sample cubes were casted and tested. Findings: A 14.5% reduction in water absorption was observed for 10mm heated, abrasioned, and fly ash-treated aggregates, whereas a 15.2% reduction in water absorption was observed for 20mm heat-treated, abrasioned, and fly ash-treated aggregates compared to untreated aggregates. Similarly, for heat-treated, abrasioned, and silica fume-treated aggregates, a 41.7% reduction in water absorption was observed for 10mm aggregates, and a 45% reduction was observed for 20mm aggregates over untreated aggregates. A 133% increase in slump value was observed for heated, abrasioned, and fly ash-treated aggregates, whereas a 150% increase in slump value was observed in the case of heated, abrasioned, and silica fume-treated aggregates. Further, a 150 % increase in compressive strength was observed for heated, abrasioned, and fly ash-treated aggregates, and a 165% increase in compressive strength was observed for heated, abrasioned, and silica fume-treated aggregates over untreated aggregates. Novelty: This research addresses the ninth United Nations Sustainability Development Goal, i.e., Industry, Innovation, and Infrastructure, as it promotes the use of eco-friendly construction practices. Moreover, the present research offers a manifold contribution to the state-of-the-art literature on construction management and offers numerous implications for the construction industry. Keywords: Recycled concrete aggregates, Silica fume treatment, Fly ash treatment, Water absorption, Workability, Compressive strength
研究目的本研究旨在比较两组处理方法的性能。第一组处理方法测试经加热、研磨和粉煤灰处理的再生混凝土集料(RCA)的性能,而另一组处理方法则测试经加热、研磨和硅烟处理的集料的性能。虽然之前的研究已经考察了增强 RCA 性能的独立处理方法的性能,但在尝试研究各种处理方法的组合性能及其优点方面还存在研究空白。为了弥补文献空白,本研究比较了两套处理方法的组合,以探究组合处理方法在改善 RCA 性能方面的相对有效性。研究方法研究采用 IS 10262-2019 中概述的混凝土混合设计程序在实验室进行。作为实验计划的一部分,共浇注和测试了 24 个样方。研究结果与未处理的骨料相比,10 毫米加热、磨蚀和粉煤灰处理骨料的吸水率降低了 14.5%,而 20 毫米加热、磨蚀和粉煤灰处理骨料的吸水率降低了 15.2%。同样,与未经处理的集料相比,经过热处理、研磨和硅烟处理的 10 毫米集料的吸水率降低了 41.7%,20 毫米集料的吸水率降低了 45%。经加热、研磨和粉煤灰处理的集料的坍落度值增加了 133%,而经加热、研磨和硅烟处理的集料的坍落度值增加了 150%。此外,经加热、研磨和粉煤灰处理的集料的抗压强度比未经处理的集料增加了 150%,经加热、研磨和硅烟处理的集料的抗压强度比未经处理的集料增加了 165%。新颖性:本研究针对联合国第九个可持续发展目标,即 "工业、创新和基础设施",因为它促进了生态友好型建筑实践的使用。此外,本研究还对建筑管理方面的最新文献做出了多方面的贡献,并对建筑行业产生了诸多影响。关键词再生混凝土骨料 硅灰处理 粉煤灰处理 吸水性 工作性 抗压强度
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引用次数: 0
A Textual Data Analysis of the Union Budget of India 印度联邦预算的文本数据分析
Pub Date : 2024-01-31 DOI: 10.17485/ijst/v17i5.1174
Kirti Makwana
Objectives: To present a textual data analysis of the Union Budgets of India for financial years 2019-20 to 2023-24). Examining the policy narratives, key announcements, and thematic emphasis in Budget speeches to explore about the government's priorities. Methods : The analysis is centered on the budget presented by Nirmala Sitharaman, the Finance Minister of India. The study emphases on the budget speeches conveyed by her and serves a combination of quantitative and qualitative techniques to classify the main themes and primacy of the budget. To categorize the discourse into diverse subjects, Natural Language Processing (NLP), Topic Modeling and Sentiment Analysis methods are used. Findings: The outcomes recommend that the budget emphases on encouraging commercial growth, improving living standard, and providing liberation to many sectors affected by the COVID-19 pandemic. “India”, “Government”, “Infrastructure”, “Sector” etc. are some of the words which are used repeatedly in each budget presented. Further high value of Term Frequency-Inverse Document Frequency (TF-IDF) suggests that India (0.323), Government (0.315), Tax (0.268), Crores (0.380) are some of the words which are the most important and relevant words during Budget presentations. Correlation matrix suggests that topic 1 is highly negatively correlated with topic 2 (coefficient value – (-0.832)). The paper concludes by deliberating the repercussions of the budget on the Indian economy and the challenges that are to be addressed to attain the budget's intents. Novelty : Largely, the research paper delivers an all-inclusive understanding of the Indian Union Budget and its possible influence on the country's economic and social development. Keywords: Textual Data Analysis, Union Budget, Nirmala Sitharaman, Bag of Words, Sentiment Analysis, TF-IDF
目标:对印度 2019-20 至 2023-24 财政年度的联邦预算进行文本数据分析。)研究预算演讲中的政策叙述、主要公告和主题重点,以探讨政府的优先事项。方法:分析以印度财政部长尼尔马拉-西塔拉曼(Nirmala Sitharaman)提交的预算案为中心。研究重点是她所传达的预算演讲,并结合定量和定性技术,对预算的主要主题和优先事项进行分类。为了将发言归类为不同的主题,使用了自然语言处理(NLP)、主题建模和情感分析方法。研究结果研究结果表明,预算案的重点是鼓励商业增长、提高生活水平,以及解放受 COVID-19 大流行病影响的许多部门。"印度"、"政府"、"基础设施"、"部门 "等词在每份预算中都被反复使用。此外,词频-反向文档频率(TF-IDF)的高值表明,印度(0.323)、政府(0.315)、税收(0.268)、克罗尔(0.380)是预算报告中最重要和最相关的词汇。相关矩阵表明,主题 1 与主题 2 高度负相关(系数值- (-0.832))。最后,本文讨论了预算案对印度经济的影响以及为实现预算案意图而需要应对的挑战。新颖性:从总体上看,该研究论文对印度联邦预算及其对国家经济和社会发展可能产生的影响进行了全方位的理解。关键词文本数据分析、联邦预算、尼尔马拉-西塔拉曼、词袋、情感分析、TF-IDF
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引用次数: 0
Optimization of Corrosion Behaviour of Blended TiO2 /ZnO Coating on SUS 304 using Taguchi Method 采用田口方法优化 SUS 304 上二氧化钛/氧化锌混合涂层的腐蚀行为
Pub Date : 2024-01-31 DOI: 10.17485/ijst/v17i5.1663
Vandana N Mahajan, M. J. Sable, S. P. Shekhawat, Suhas R Patil
Objectives: To determine the best combination of blends of TiO2 /ZnO coated on SUS for obtaining a minimum corrosion rate. Methods: Different TiO2 /ZnO thin film blends are coated on SUS 304 substrates. The sol-gel dip-coating process is used for coating application. Also, withdrawal rates, calcination temperature, and doping percentage are the parameters used for the study of the anti-corrosion property. L9 array, using the Taguchi method, is applied for the design of the experiment. P.G-Lyte 1.0 model was used for the anticorrosion test. The Potentiosatic polarization method was applied for anti-corrosion testing. Findings: The results show that the percentage of ZnO doping (60%, 40%, and 20%) is the most significant factor in controlling the corrosion of the sample with plate number 1. The withdrawal rate (0.5 mm/sec, 1 mm/sec, and 1.5 mm/sec) has a minimal impact on the corrosion rate of the coated sample. The calcination temperature (300◦C, 400◦C, and 500◦C) has a greater impact than the withdrawal rate. There is a good agreement between the predicted and actual corrosion current. Novelty: Investigation of mechanical properties like corrosion resistance is essential for increasing the durability of automobile components by applying a coating of blends of TiO2 and ZnO with a rare blending combination that was not applied before for the investigation. In this research, efforts are made to reduce the corrosion rate by applying different blends of TiO2 and ZnO. Also, withdrawal rate and calcination temperature are varied in the process which was also not considered in the earlier studies. Keywords: Taguchi method; Corrosion current; Signal to Noise ratio; Coating; Design of experiments
目标确定涂覆在 SUS 上的二氧化钛/氧化锌混合物的最佳组合,以获得最小的腐蚀率。方法: 在 SUS 30 上涂覆不同的 TiO2 /ZnO 薄膜混合物:在 SUS 304 基材上涂覆不同的 TiO2 /ZnO 薄膜混合物。涂层应用采用溶胶-凝胶浸涂工艺。此外,抽出率、煅烧温度和掺杂百分比也是用于研究防腐蚀性能的参数。实验设计采用田口方法的 L9 阵列。防腐试验采用 P.G-Lyte 1.0 模型。采用电位极化法进行防腐测试。结果结果表明,氧化锌掺杂比例(60%、40% 和 20%)是控制 1 号板样品腐蚀的最重要因素。抽取速率(0.5 毫米/秒、1 毫米/秒和 1.5 毫米/秒)对涂层样品的腐蚀速率影响很小。煅烧温度(300◦C、400◦C 和 500◦C)比抽出率的影响更大。预测的腐蚀电流与实际的腐蚀电流之间有很好的一致性。新颖性:通过应用 TiO2 和 ZnO 混合物涂层来提高耐腐蚀性等机械性能,这对于提高汽车部件的耐用性至关重要。在这项研究中,通过使用不同的二氧化钛和氧化锌混合物,努力降低腐蚀率。此外,在此过程中还改变了抽出率和煅烧温度,这也是以前的研究中没有考虑到的。关键词田口方法;腐蚀电流;信噪比;涂层;实验设计
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引用次数: 0
Nutritional and Functional Properties of Prebiotic Enriched Chocolates 富含益生元巧克力的营养和功能特性
Pub Date : 2024-01-31 DOI: 10.17485/ijst/v17i5.522
A. Pal, Poulami Chakraborty, Radhika Jitesh Gandhi
Objectives: To demonstrate the nutritional and functional characteristics of the developed phytochemical containing prebiotic-enriched chocolates. Methods: Methods of Association of Official Analytical Chemists and standard biochemical procedures were employed for the determination of nutrient and phytochemical composition. Antioxidant and prebiotic activity were calculated through DPPH, the reducing potential assay, as well as the growth kinetics and plate count of Lactobacillus rhamnosus GG, respectively (p ≤ 0.01, 95% confidence interval). The functionality of the products was also analyzed in an in vitro simulated human intestinal digestion environment. Findings: Variation 3 (V3) chocolates prepared through the incorporation of cocoa powder (64%), cocoa butter (22.5%), stevia (3%), inulin (10%), and soy lecithin (0.5%), scored the highest sensory rating amongst all the prepared products. V3 revealed a desired proportion of proximate components (low fat and high fibre), minerals, vitamins, and phytochemicals such as polyphenol (25mg/g), alkaloids (189 mg/mL), and flavonoids (46mg/g), versus the standard chocolate (S), along with a low calorific value of the former (541.2Kcal). Furthermore, V3 could efficiently scavenge 2, 2-diphenyl-1-picryl-hydrazyl (86.04±0.4%), display reducing power (2.84±0.02), and accelerate the growth of probiotic Lactobacillus rhamnosus GG (OD 0.59, 11.61 Log CFU/mL at 20 hours), portraying antioxidant and prebiotic properties. Interestingly, V3 was found to sustain a significant proportion of antioxidant and prebiotic potential under imitated intestinal digestion, indicating their effectiveness in propagating benefits in the human body post-consumption. Novelty: Considerable retention of the antioxidant and prebiotic effects post intestinal digestion, besides the nutritional and phytochemical constitution of V3, may promote well-being consequent to its adaption alternative to conventional chocolates. Keywords: Antioxidant, Chocolate, Nutrients, Phytochemicals, Prebiotic
目的展示所开发的富含益生元的植物化学巧克力的营养和功能特性。方法:采用官方分析化学家协会的方法和标准生化程序测定营养成分和植物化学成分。分别通过 DPPH、还原电位测定法、鼠李糖乳杆菌 GG 的生长动力学和平板计数(p ≤ 0.01,95% 置信区间)来计算抗氧化活性和益生元活性。此外,还在体外模拟人体肠道消化环境中对产品的功能进行了分析。研究结果在所有制备的产品中,通过添加可可粉(64%)、可可脂(22.5%)、甜叶菊(3%)、菊粉(10%)和大豆卵磷脂(0.5%)制备的变异 3(V3)巧克力的感官评分最高。与标准巧克力(S)相比,V3 的近似成分(低脂肪和高纤维)、矿物质、维生素和植物化学物质(如多酚(25 毫克/克)、生物碱(189 毫克/毫升)和类黄酮(46 毫克/克))的比例更理想,而且前者的热值较低(541.2 千卡)。此外,V3 还能有效清除 2,2-二苯基-1-苦基肼(86.04±0.4%),具有还原力(2.84±0.02),并能加速益生菌鼠李糖乳杆菌 GG 的生长(OD 0.59,20 小时后为 11.61 Log CFU/mL),具有抗氧化和益生特性。有趣的是,在模仿肠道消化的情况下,V3 仍能保持相当大比例的抗氧化和益生潜能,这表明它们在食用后能有效地在人体内传播益处。新颖性:除了 V3 的营养和植物化学成分外,其抗氧化剂和益生元效果在肠道消化后仍能保持相当大的比例,这可能会促进人们的健康,使其成为传统巧克力的替代品。关键词抗氧化剂 巧克力 营养素 植物化学物 益生元
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引用次数: 0
Combination of One-Class and Multi-Class Anomaly Detection Using Under-Sampling and Ensemble Technique in IoT Healthcare Data 在物联网医疗数据中使用欠采样和集合技术将单类和多类异常检测相结合
Pub Date : 2024-01-31 DOI: 10.17485/ijst/v17i5.1645
S. Subha, J. Sathiaseelan
Objectives: This study addresses the concept drift issue in anomaly detection for IoT systems. The objective is to develop a novel approach that effectively handles the dynamic nature of IoT data. Methods: The proposed COMCADSET (Combination of One-Class and Multi-Class Anomaly Detection Using Under-Sampling and Ensemble Technique) addresses the concept drift challenge. It adapts to evolving data distributions, detects anomalies in IoT healthcare data, mitigates class distribution imbalances through under-sampling, and enhances performance with ensemble techniques. The approach involves four phases: multi-class anomaly spotting, one-class anomaly isolation, concept-drift-free dataset creation, and robust anomaly detection using ensembles. Evaluation utilizes the "Heart Failure Prediction" dataset from Kaggle, with comprehensive experiments and three classification algorithms. COMCADSET's innovation merges one-class and multi-class anomaly detection, under-sampling, and ensemble classification. It's compared against gold standards for classification accuracy, concept drift management, and anomaly detection performance. Findings: Conduct comprehensive experiments using a concept drift dataset and three classification algorithms to evaluate the efficacy of the COMCADSET technique. The experimental result shows the proposed COMCADSET technique attains an impressive 98.401% accuracy, decisively enhancing classification accuracy by adeptly addressing concept drift and identifying anomalies in IoT data. Early detection of abnormal behaviour prevents more significant issues and potential security vulnerabilities in IoT systems. Novelty: The novelty of the COMCADSET technique lies in its ability to address the concept drift issue and improve anomaly detection accuracy in IoT systems. By integrating one-class and multi-class anomaly detection, under-sampling, and ensemble techniques, the proposed approach provides a robust solution for handling the dynamic nature of IoT data. Keywords: Anomaly Detection, Concept Drift, Ensemble Classification, Internet of Things, Under­Sampling
研究目的本研究旨在解决物联网系统异常检测中的概念漂移问题。目的是开发一种新型方法,有效处理物联网数据的动态特性。方法提出的 COMCADSET(使用欠采样和集合技术的单类和多类异常检测组合)可解决概念漂移难题。它能适应不断变化的数据分布,检测物联网医疗数据中的异常,通过欠采样缓解类分布不平衡,并利用集合技术提高性能。该方法包括四个阶段:多类异常发现、单类异常隔离、无概念漂移数据集创建以及使用集合进行稳健异常检测。评估使用了 Kaggle 的 "心衰预测 "数据集,并进行了综合实验和三种分类算法。COMCADSET 的创新融合了单类和多类异常检测、欠采样和集合分类。它在分类准确性、概念漂移管理和异常检测性能方面与黄金标准进行了比较。研究结果使用概念漂移数据集和三种分类算法进行综合实验,评估 COMCADSET 技术的功效。实验结果表明,所提出的 COMCADSET 技术达到了令人印象深刻的 98.401% 的准确率,通过巧妙地处理概念漂移和识别物联网数据中的异常,决定性地提高了分类准确率。对异常行为的早期检测可防止物联网系统出现更多重大问题和潜在安全漏洞。新颖性:COMCADSET 技术的新颖性在于它能够解决概念漂移问题并提高物联网系统中异常检测的准确性。通过整合单类和多类异常检测、欠采样和集合技术,所提出的方法为处理物联网数据的动态特性提供了一种稳健的解决方案。关键词异常检测 概念漂移 集合分类 物联网 欠采样
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引用次数: 0
Studying the Absorption and Fluorescence Parameters of Ho: YAP Laser Using the Judd-Oflet Model 利用 Judd-Oflet 模型研究 Ho: YAP 激光的吸收和荧光参数
Pub Date : 2024-01-31 DOI: 10.17485/ijst/v17i5.2866
Ameer Ali Hassan, Haider F. Hasheem, Mohsin F AL-Ruwashdi
Objectives: Study and find the absorption and fluorescence parameters for the Ho: YAP laser crystal, such as branching ratios, intensity parameters, oscillation strength, fluorescence line strength, absorption line strength, the spontaneous emission factor, the time life of the upper irritated level, the emission cross-section, and the absorption cross-section and prove that this laser is Ho: YAP laser. Method: Absorption and fluorescence parameters are calculated by employing the equations of the Judd-Oflet model and using the absorption coefficient to calculate the area under the curve. Findings: The properties of the compelling medium were calculated theoretically using the Judd-Oflet Model. These include branching ratios β2 = 0.27, β3 = 0.72, intensity parameters Ω2=1.41*10-20 cm2 Ω4=2.91*10-20 cm2, Ω6= 1.72*10-20 cm2, oscillation strength 1.48*10-6, fluorescence line strength Sf1 =0, Sf2 = 3.24*10-23, Sf3 = 4.9*10-23, absorption line strength 3.2439*10-23, the spontaneous emission factor 167 s-1, and the time life of the upper irritated level 5.99 ms, the emission cross-2.239*10-18 cm2, the absorption cross-section 0.92*10-20 cm2, these values are evidence that the active medium to be studied is Ho: YAP. Also, the ratio of the probability of spontaneous emission to stimulated emission was calculated, which is much less than one, which indicates that the laser system operates in this medium, and a laser is emitted through it. Novelty: In this article, we succeeded in using a mathematical model to calculate the properties of absorption and fluorescence, which are of great importance in laser work, instead of experimental work that could expose the crystal to damage and also require money, effort, and time. Keywords: Judd-Oflet Model, Ho: YAP laser, Absorption Parameters, Fluorescence Parameters, absorption coefficient, intensity parameters
研究目的研究并找到 Ho: YAP 激光晶体的吸收和荧光参数,如支化比、强度参数、振荡强度、荧光线强度、吸收线强度、自发辐射系数、上刺激级寿命、发射截面、吸收截面等,并证明该激光器为 Ho: YAP 激光器。方法利用 Judd-Oflet 模型方程计算吸收和荧光参数,并利用吸收系数计算曲线下面积。结果:利用 Judd-Oflet 模型从理论上计算出了引气介质的特性。其中包括支化比 β2 = 0.27,β3 = 0.72,强度参数 Ω2=1.41*10-20 cm2 Ω4=2.91*10-20 cm2,Ω6= 1.72*10-20 cm2,振荡强度 1.48*10-6,荧光线强度 Sf1 =0,Sf2 = 3.24*10-23,Sf3 = 4.9*10-23,吸收线强度 3.2439*10-23,自发辐射系数 167 s-1,上刺激级时间寿命 5.99 ms,发射截面-2.239*10-18 cm2,吸收截面 0.92*10-20 cm2,这些数值都证明了要研究的活性介质是 Ho:YAP。此外,还计算了自发辐射与受激辐射的概率之比,该比值远小于 1,这表明激光系统在这种介质中工作,并通过它发射激光。新颖性:在这篇文章中,我们成功地利用数学模型计算出了吸收和荧光的特性,这在激光工作中是非常重要的,而不像实验工作那样会使晶体受到损害,而且还需要花费金钱、精力和时间。关键词Judd-Oflet 模型 Ho: YAP 激光器 吸收参数 荧光参数 吸收系数 强度参数
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引用次数: 0
Adaptive RPL Routing Optimization Model for Multimedia Data Transmission using IOT 利用物联网进行多媒体数据传输的自适应 RPL 路由优化模型
Pub Date : 2024-01-31 DOI: 10.17485/ijst/v17i5.2627
P. K. Shashidhar, T. C. Thanuja, Rajashekar Kunabeva
Objectives: The main objectives of this research endeavor encompass the development of the Adaptive RPL Optimization (ARPLO) model to enhance data transmission efficiency within IoT networks. This includes constructing a grid-based network structure optimized for data transfer, selecting the most suitable nodes as grid head nodes to maximize network lifespan while minimizing energy consumption, implementing an innovative objective function-driven approach to optimize parent node selection, and integrating an Adaptive Deep Neural Network (ADNN) to accurately classify medical data. Methods: The research methodology entails several key steps. A grid-based network structure is established with IoT nodes and root nodes, where a DODAG process incorporating DIO messages is utilized for node ranking. To enhance energy efficiency, the Trickle algorithm is employed for control message optimization. Grid head nodes are chosen based on metrics such as root node fairness, residual energy, and load influence index. The novel Middle Order Optimal Routing (MOOR) objective function is utilized to optimize routing decisions. ADNN is implemented for precise medical data classification. The proposed model's performance is evaluated through simulation in a Python environment. Findings: The research findings demonstrate that the ARPLO model yields notable benefits compared to existing models. It achieves higher energy efficiency, improved throughput, enhanced packet delivery ratio (PDR), and an extended network lifespan. The Trickle algorithm contributes to efficient control message optimization. The MOOR-based routing approach improves multimedia medical data transfer. Moreover, the integration of ADNN enhances the accuracy of data classification, particularly in healthcare applications. The research outcomes align with the broader field's existing values and reports while offering novel insights that contribute to enhancing the existing knowledge base. ARPLO protocol performance reveals that there is increase of throughput of 31.2%, PDR by 7.12%, lifetime of 10.7 % with reduction of energy consumption by 12.72%, control overhead by 31.01% and end-to-end delay by 33.01%. Novelty: The novelty of this research lies in its comprehensive approach that integrates a grid-based network structure, MOOR-based optimization, and ADNN-based classification. The incorporation of the Trickle algorithm for energy-efficient communication is an innovative feature. The introduction of new metrics for grid head node selection, along with the application of the MOOR objective function for multimedia medical data routing, showcases the research's innovative contributions. Keywords: Internet of Things (IoT), RPL (Routing Protocol for Low­Power and Lossy Networks), Optimization, Routing, Multimedia, Healthcare
研究目标这项研究工作的主要目标包括开发自适应 RPL 优化(ARPLO)模型,以提高物联网网络内的数据传输效率。这包括构建基于网格的网络结构,优化数据传输;选择最合适的节点作为网格头节点,最大限度地延长网络寿命,同时最大限度地降低能耗;实施创新的目标函数驱动方法,优化父节点选择;集成自适应深度神经网络(ADNN),对医疗数据进行精确分类。研究方法研究方法包括几个关键步骤。通过物联网节点和根节点建立基于网格的网络结构,利用包含 DIO 消息的 DODAG 流程进行节点排序。为提高能效,采用 Trickle 算法对控制信息进行优化。网格头节点的选择基于根节点公平性、剩余能量和负载影响指数等指标。利用新颖的中阶最优路由(MOOR)目标函数来优化路由决策。ADNN 用于精确的医疗数据分类。通过在 Python 环境中进行仿真,对所提出模型的性能进行了评估。研究结果研究结果表明,与现有模型相比,ARPLO 模型具有显著优势。它实现了更高的能效、更好的吞吐量、更高的数据包交付率 (PDR),并延长了网络寿命。Trickle 算法有助于实现高效的控制信息优化。基于 MOOR 的路由方法改进了多媒体医疗数据传输。此外,ADNN 的集成提高了数据分类的准确性,尤其是在医疗保健应用中。研究成果与更广泛领域的现有价值和报告相一致,同时提供了有助于增强现有知识库的新见解。ARPLO 协议的性能表明,吞吐量提高了 31.2%,PDR 提高了 7.12%,寿命提高了 10.7%,能耗降低了 12.72%,控制开销降低了 31.01%,端到端延迟降低了 33.01%。新颖性:这项研究的新颖性在于其综合方法,它整合了基于网格的网络结构、基于 MOOR 的优化和基于 ADNN 的分类。采用 Trickle 算法实现高能效通信是一项创新。网格头节点选择新指标的引入,以及 MOOR 目标函数在多媒体医疗数据路由中的应用,展示了该研究的创新贡献。关键词:物联网物联网(IoT)、RPL(低功耗和有损网络路由协议)、优化、路由、多媒体、医疗保健
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引用次数: 0
期刊
Indian Journal Of Science And Technology
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