Acta IMEKO最新文献_第9页

Memristive devices for metrological applications 计量用记忆装置

Acta IMEKO Pub Date : 2023-09-26 DOI: 10.21014/actaimeko.v12i3.1450

Vitor Cabral, Alessandro Cultrera, Shaochuan Chen, João Pereira, Luís Ribeiro, Isabel Godinho, Luca Boarino, Nastacia De Leo, Luca Callegaro, Susana Cardoso, Ilia Valov, Gianluca Milano

引用次数: 1

Material characterization and uncertainty evaluation at millimetre wave frequencies in TUBITAK UME TUBITAK UME在毫米波频率下的材料特性和不确定度评估

Acta IMEKO Pub Date : 2023-09-26 DOI: 10.21014/actaimeko.v12i3.1443

Erkan Danaci, Emre Cetin

引用次数: 1

Wearable devices and Machine Learning algorithms to assess indoor thermal sensation: metrological analysis 可穿戴设备和机器学习算法评估室内热感觉:计量分析

Acta IMEKO Pub Date : 2023-09-25 DOI: 10.21014/actaimeko.v12i3.1570

Gloria Cosoli, Silvia Angela Mansi, Gian Marco Revel, Marco Arnesano

{"title":"Wearable devices and Machine Learning algorithms to assess indoor thermal sensation: metrological analysis","authors":"Gloria Cosoli, Silvia Angela Mansi, Gian Marco Revel, Marco Arnesano","doi":"10.21014/actaimeko.v12i3.1570","DOIUrl":"https://doi.org/10.21014/actaimeko.v12i3.1570","url":null,"abstract":"Personal comfort modeling is considered the most promising solution for indoor thermal comfort management in buildings. The use of wearable sensors is investigated for the real-time measurement of physiological signals to train comfort models for buildings monitoring and control. To achieve the required reliability, different uncertainty sources should be considered and weighted in the measurement results evaluation. This study presents an example of personal comfort model (PCM) development based on wearable sensors (i.e., Empatica E4 smartband and MUSE headband) acquiring multimodal signals (i.e., photoplethysmographic – PPG, electrodermal activity – EDA, skin temperature – SKT, and electroencephalographic – EEG ones), together with a metrological characterization of the modeling procedure. Starting from the data collected within an experimental campaign on 76 subjects, different Machine Learning (ML) algorithms were exploited to create comfort models capable of predicting the human thermal sensation (TS). The most accurate model was considered to investigate the impact of sensors uncertainty through a Monte Carlo simulation. Results showed that the Random Forest model is the best performing one (accuracy: 0.86). Monte Carlo simulation method proved that the model is very robust towards measurement uncertainties of input features (expanded uncertainty of the model accuracy: ± 0.04, k = 2). This confirms the possibility to derive the subject’s TS exploiting only physiological signals; measurement uncertainty is influenced mostly by PPG and EDA signals. This kind of investigation could lead to the development of PCMs, exploitable within control systems to optimize subjects’ well-being and building energy efficiency.","PeriodicalId":37987,"journal":{"name":"Acta IMEKO","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135865209","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: 1

MicroCT imaging of canid diaphyses: bone ontogeny from a zooarchaeological and digital perspective 犬科动物骨干的显微ct成像:从动物考古学和数字角度看骨个体发育

Acta IMEKO Pub Date : 2023-09-25 DOI: 10.21014/actaimeko.v12i3.1476

Francesco Boschin, Federico Bernardini

引用次数: 1

Optical coherence tomography based diabetic – ophthalmic disease classification and measurement using bilateral filter and transfer learning approach 基于光学相干断层扫描的双侧滤波和迁移学习方法的糖尿病眼疾病分类与测量

Acta IMEKO Pub Date : 2023-09-25 DOI: 10.21014/actaimeko.v12i3.1345

K. Yojana, L. Thillai Rani

{"title":"Optical coherence tomography based diabetic – ophthalmic disease classification and measurement using bilateral filter and transfer learning approach","authors":"K. Yojana, L. Thillai Rani","doi":"10.21014/actaimeko.v12i3.1345","DOIUrl":"https://doi.org/10.21014/actaimeko.v12i3.1345","url":null,"abstract":"Optical Coherence Tomography (OCT) is a smooth application of low coherence interferometer with high air resolution and highly sensitive heterodyne detection technology to tomographic image measurement of living organisms. Currently, clinical applications are becoming more widespread in ophthalmology, cardiovascular system, dermatology, and dentistry. The problem with OCT is that the measurement area is as narrow as a few mm compared to other tomographic image measurement techniques, and it was initially applied to ophthalmology. Since then, various researches and developments have been carried out to expand clinical applications. Michelson type fiber optic interferometer is used for image acquisition. This paper presents a classification of ophthalmic diseases caused by diabetes. Bilateral filter is used for image pre-processing and noise removal. A transfer learning approach is implemented which uses AlexNet and Support vector machine (SVM) to classify the images. The AlexNet model is used to extract the features form the images and these features are classified using SVM model. The novelty of the proposed model lies in the use of image denoising using bilateral filter and then classification of the AlexNet features using SVM thereby achieving better classification accuracy with less training data. This also leads to better resource utilization. The ailments under study are Choroidal Neovascularization (CNV), Diabetic Macular Edema (DME), DRUSEN, and NORMAL. The proposed approach produced a higher classification accuracy of 99 % when compared to other deep learning algorithms like CNN, AlexNet and GoogleNet. The precision, sensitivity and specificity are recorded as 0.98, 0.99, and 0.99 respectively.","PeriodicalId":37987,"journal":{"name":"Acta IMEKO","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135865215","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: 1

Characterization and provenance of Roman tiles from the archaeological sites of Cariati, Scala Coeli and Terravecchia (Calabria, Southern Italy) Cariati、Scala Coeli和Terravecchia(意大利南部卡拉布里亚)考古遗址中罗马瓷砖的特征和来源

Acta IMEKO Pub Date : 2023-09-25 DOI: 10.21014/actaimeko.v12i3.1484

Armando Taliano Grasso, Salvatore Medaglia, Raffaella De Luca, Andrea Bloise, Sasha Carinola, Domenico Miriello

{"title":"Characterization and provenance of Roman tiles from the archaeological sites of Cariati, Scala Coeli and Terravecchia (Calabria, Southern Italy)","authors":"Armando Taliano Grasso, Salvatore Medaglia, Raffaella De Luca, Andrea Bloise, Sasha Carinola, Domenico Miriello","doi":"10.21014/actaimeko.v12i3.1484","DOIUrl":"https://doi.org/10.21014/actaimeko.v12i3.1484","url":null,"abstract":"This paper concerns the archaeometric study carried out on a group of tiles and a brick belonging to the Roman period. In particular, the samples are dated back to the late 3rd-1st century BC and they come from the archaeological sites of Cariati, Scala Coeli and Terravecchia, in the province of Cosenza (Calabria, Southern Italy). Some of these samples are impressed with the stamps L./N. LUSIPETEL and M. MECONI, belonging to a production plant that operated in the north-central Ionian coast of the Calabria Region between the late Republican period and the Imperial age, owned to two important families of Petelia (today Strongoli). All samples were analyzed by Optical microscopy, X-ray Powder Diffraction and Energy Dispersion Microanalysis by Scanning Electron Microscope, in order to determine their minero-petrographic features and their geochemical composition, to identify the extraction area of the raw materials and the technological aspects related to the processing of the clay. In addition, the comparison between the chemical composition of the samples with the clay and the sand coming from some quarries of the Cariati area confirms that most of the samples were locally produced using raw materials from natural Pliocene outcrops.","PeriodicalId":37987,"journal":{"name":"Acta IMEKO","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135866260","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: 1

A solar PV model parameters estimation based on an improved manta foraging algorithm with dynamic fitness distance balance 基于改进蝠鲼觅食算法的动态适应度距离平衡太阳能光伏模型参数估计

Acta IMEKO Pub Date : 2023-09-22 DOI: 10.21014/actaimeko.v12i3.1565

Mouncef El Marghichi, Soufiane Dangoury, Mohammed Amine Amlila

{"title":"A solar PV model parameters estimation based on an improved manta foraging algorithm with dynamic fitness distance balance","authors":"Mouncef El Marghichi, Soufiane Dangoury, Mohammed Amine Amlila","doi":"10.21014/actaimeko.v12i3.1565","DOIUrl":"https://doi.org/10.21014/actaimeko.v12i3.1565","url":null,"abstract":"Accurately simulating and operating photovoltaic (PV) modules or solar cells requires determining specific model parameters based on experimental data. Extracting these parameters is crucial for analyzing system performance under various conditions such as temperature and sunlight variations. However, modeling solar photovoltaic systems is inherently nonlinear, which calls for an efficient algorithm. In this study, we employ the MRFO-dFDB (Manta Ray Foraging Optimization with dynamic Fitness Distance Balance) algorithm, which utilizes fitness distance balance to balance the exploration and exploitation of the search area when assessing parameters in solar PV models. By applying MRFO-dFDB to extract parameters from the STP6-120/36 and Photowatt-PWP201 solar modules, we observe exceptional predictive performance for both single diode (SDM) and double diode (DDM) models. MRFO-dFDB exhibits superior performance compared to state-of-the-art methods. It achieves lower Root-Mean-Square Error (RMSE) values, specifically < 15.3 mA for the STP6-120/36 module and <2.4 mA for the Photowatt-PWP201 module. Additionally, it demonstrates lower maximum errors of 39.02 mA and 5.33 mA, as well as lower power errors of 155.42 mW and 14.122 mW, for the STP6-120/36 and Photowatt-PWP201 solar modules, respectively. Furthermore, it exhibits excellent performance with faster computation speed (< 30.1 seconds in all tests), further emphasizing its superiority.","PeriodicalId":37987,"journal":{"name":"Acta IMEKO","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136099406","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

Vibroacoustic heritage monitoring with a standalone system 带有独立系统的振动声遗产监测

Acta IMEKO Pub Date : 2023-09-22 DOI: 10.21014/actaimeko.v12i3.1472

Fabrizio Barone, Marco Casazza, Rocco Romano

引用次数: 1

Incidence rate estimation of SARS-COVID-19 via a Polya process scheme: a comparative analysis in Italy and European countries 基于Polya流程方案的SARS-COVID-19发病率估算:意大利与欧洲国家的比较分析

Acta IMEKO Pub Date : 2023-09-21 DOI: 10.21014/actaimeko.v12i3.1534

Filippo Carone Fabiani, Rosario Schiano Lo Moriello, Davide Ruggiero

引用次数: 1

Characterization, traceability, and uncertainty estimation of reference solar panel module measurements using pulsed solar simulators and reference solar cells 使用脉冲太阳能模拟器和参考太阳能电池的参考太阳能电池板模块测量的表征，可追溯性和不确定性估计

Acta IMEKO Pub Date : 2023-09-18 DOI: 10.21014/actaimeko.v12i3.1525

Abdallah Karmalawi

引用次数: 2