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2021 International Workshop on Impedance Spectroscopy (IWIS)最新文献

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Robust Advanced Sensor System for Determination of Volatile Organic Compounds (VOC) 检测挥发性有机化合物(VOC)的先进传感器系统
2021 International Workshop on Impedance Spectroscopy (IWIS) Pub Date : 2021-09-29 DOI: 10.1109/IWIS54661.2021.9711830
Andreas Mangler, Julian Eise, Qi Zhang
{"title":"Robust Advanced Sensor System for Determination of Volatile Organic Compounds (VOC)","authors":"Andreas Mangler, Julian Eise, Qi Zhang","doi":"10.1109/IWIS54661.2021.9711830","DOIUrl":"https://doi.org/10.1109/IWIS54661.2021.9711830","url":null,"abstract":"Nowadays more and more health risks are increasing. Beside the viruses, there are also other particles which have an impact on the human well-being. The so called volatile organic compounds (VOCs) are substances in the air and can be harmful in high concentrations. Therefore, the detection of VOC value is particularly important.","PeriodicalId":207918,"journal":{"name":"2021 International Workshop on Impedance Spectroscopy (IWIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130613243","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
Preliminary Investigation of the Impact of Mechanical Stresses on Bioimpedance Spectroscopy-based Insuline Bioavailability Assessment 机械应力对基于生物阻抗光谱的胰岛素生物利用度评价影响的初步研究
2021 International Workshop on Impedance Spectroscopy (IWIS) Pub Date : 2021-09-29 DOI: 10.1109/IWIS54661.2021.9711756
P. Arpaia, D. Cuneo, Francesca Mancino, S. Minucci, N. Moccaldi, I. Sannino
{"title":"Preliminary Investigation of the Impact of Mechanical Stresses on Bioimpedance Spectroscopy-based Insuline Bioavailability Assessment","authors":"P. Arpaia, D. Cuneo, Francesca Mancino, S. Minucci, N. Moccaldi, I. Sannino","doi":"10.1109/IWIS54661.2021.9711756","DOIUrl":"https://doi.org/10.1109/IWIS54661.2021.9711756","url":null,"abstract":"In the framework of bioimpedance spectroscopy-based insulin bioavailability assessment, a preliminary experimental campaign aimed to investigate the relationship between applied pressure and impedance variation was conducted. The experimental tests were carried out on a volunteer's abdomen in a controlled environment. They exploited four pre-gelled electrodes and a non- invasive instrument built with off-the-shelf components, namely DUSM, previously successfully used by the authors in different biomedical applications. Experimental results are compatible with the scientific literature, and show a progressive increase of the impedance magnitude according to an increasing external force which is comparable to the typical mechanical action of an insulin injection.","PeriodicalId":207918,"journal":{"name":"2021 International Workshop on Impedance Spectroscopy (IWIS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130832766","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: 4
Impact of Sulfide-based Solid Electrolyte Particle Size Distribution on the Electrochemistry of ASSB via Impedance Study 基于阻抗研究的硫化物基固体电解质粒径分布对ASSB电化学的影响
2021 International Workshop on Impedance Spectroscopy (IWIS) Pub Date : 2021-09-29 DOI: 10.1109/IWIS54661.2021.9711800
Y. Ghanshyam, Davoisne Carine, Morcrette Mathieu
{"title":"Impact of Sulfide-based Solid Electrolyte Particle Size Distribution on the Electrochemistry of ASSB via Impedance Study","authors":"Y. Ghanshyam, Davoisne Carine, Morcrette Mathieu","doi":"10.1109/IWIS54661.2021.9711800","DOIUrl":"https://doi.org/10.1109/IWIS54661.2021.9711800","url":null,"abstract":"Sulfide based solid electrolytes (SE) offer high ionic conductivity and can be processed at a low temperature (cold pressing) and hence have been used extensively by the battery community in their quest for the development of all-solid-state batteries (ASSB). In this study, we try to investigate the impact of Argyrodite (Li6PS5Cl) particle size and its distribution, on the solid electrolyte (SE), cathode composite and in turn on the overall performance of the battery. Electrochemical Impedance Spectroscopy (EIS) provides key insights in the understanding of the behaviour of different SE. EIS in this particular study has been used to extract (i) the ionic conductivity of solid electrolytes ($sigma_{SE}$) with small ($< 20mumathrm{m}$) and large particle size ($50-150mumathrm{m}$) distribution, (ii) the effective ionic conductivity ($sigma_{cathode.comp}$) in their respective cathode composites, (iii) the tortuosity based on ionic conductivity ($tau_{cond}$). The following are the highlights of this study: 1) On Solid Electrolyte itself: Given the same amount and same pressure, the ionic conductivity of large particle size distribution is higher. Consequently, the saturation pressure (Pressure to reach the highest ionic conductivity) is lower for large particle size. 2) On Cathode composite and its cycling: the composites with large particle size show the highest compacity values among all and also is the best performing cell. 3) Ionic conductivity-based tortuosity calculated which varied in the range 1.9-2.5. 1.9 being the lowest for large particles.","PeriodicalId":207918,"journal":{"name":"2021 International Workshop on Impedance Spectroscopy (IWIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130879381","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
Studying the Barrier Quality of ALD Oxide Layers ALD氧化层阻隔性研究
2021 International Workshop on Impedance Spectroscopy (IWIS) Pub Date : 2021-09-29 DOI: 10.1109/IWIS54661.2021.9711774
Heike Wünscher, Ingo Tobehn-Steinhäuser, T. Frank, K. Neckermann, T. Ortlepp
{"title":"Studying the Barrier Quality of ALD Oxide Layers","authors":"Heike Wünscher, Ingo Tobehn-Steinhäuser, T. Frank, K. Neckermann, T. Ortlepp","doi":"10.1109/IWIS54661.2021.9711774","DOIUrl":"https://doi.org/10.1109/IWIS54661.2021.9711774","url":null,"abstract":"The usage of an electrical device in an aqueous medium requires a sealing which keeps the water and the ionic components out of the isolation. Thus, the quality of a passivation does not only depend on the chemical inertness and the bulk resistance of a material, but also on the extent of material transfer through the passivation layers. Impedance spectroscopy belongs to the best techniques to qualify this property. However, in many cases the knowledge of an equivalent circuit and a parameter fit are necessary, sometimes leading to ambiguous results. To circumvent these difficulties an alternative concept has been evaluated. Theoretical investigations of Bisquert et al. propose that mass transfer into a sealing layer can also be indicated by the Nyquist plot in the electrical impedance spectroscopy (EIS). A parameter fit could therefore be omitted. To evaluate this approach several oxide films on comb electrodes have been investigated. The studies include aluminum, titanium and tantalum oxides which were deposited using atomic layer deposition (ALD). The influence of the film thickness and process temperature were investigated. The results indicate that a significant transfer of ionic species occurs in all cases.","PeriodicalId":207918,"journal":{"name":"2021 International Workshop on Impedance Spectroscopy (IWIS)","volume":"432 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131736609","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
Contact Testing of an Impedance-based Cancer Detection Probe 基于阻抗的癌症检测探针的接触测试
2021 International Workshop on Impedance Spectroscopy (IWIS) Pub Date : 2021-09-29 DOI: 10.1109/IWIS54661.2021.9711846
E. Skorina, Shu Guo, M. Mughal, C. Onal, A. Sabuncu
{"title":"Contact Testing of an Impedance-based Cancer Detection Probe","authors":"E. Skorina, Shu Guo, M. Mughal, C. Onal, A. Sabuncu","doi":"10.1109/IWIS54661.2021.9711846","DOIUrl":"https://doi.org/10.1109/IWIS54661.2021.9711846","url":null,"abstract":"Colorectal cancer (CRC) is a third leading cause of cancer death in United States. Colonoscopy is widely utilized both to detect CRC and to detect and remove adenomatous polyps, precursor lesion to CRC, thus preventing CRC from developing. The current technique for polyp identification requires a biopsy, a process that is difficult to perform in vivo. We seek to improve colonoscopy process by developing an impedance analyzer probe which can detect differences in tissue within existing colonoscopy systems. To this end, we developed a coaxial impedance probe capable of fitting through the 3mm instrument channel of a colonoscope. Using porcine intestinal tissue, we verified that this probe is capable of consistently measuring impedance under different contact conditions, such as variable forces or noisy tissue contact.","PeriodicalId":207918,"journal":{"name":"2021 International Workshop on Impedance Spectroscopy (IWIS)","volume":"356 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126691829","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
Soft Nanocomposite-Based Pressure Sensors as Smart Seals 软纳米复合材料压力传感器的智能密封
2021 International Workshop on Impedance Spectroscopy (IWIS) Pub Date : 2021-09-29 DOI: 10.1109/IWIS54661.2021.9711834
J. R. Bautista-Quijano, O. Kanoun
{"title":"Soft Nanocomposite-Based Pressure Sensors as Smart Seals","authors":"J. R. Bautista-Quijano, O. Kanoun","doi":"10.1109/IWIS54661.2021.9711834","DOIUrl":"https://doi.org/10.1109/IWIS54661.2021.9711834","url":null,"abstract":"Mechanical seals play a critical role in the functionality of diverse joint mechanical elements and solid structures. Their main functions are the prevention of mass transfer, maintaining stable pressure between the joints, as well as avoiding external contamination. Yet, current sealing technology is unable to provide a sealing solution in which the pressure applied between the mechanical elements is monitored to ensure sealing functionality. In this work, the use of square-shaped nanocomposite sensors made of polydimethyl-siloxane (PDMS)/carbon nanotubes (CNT) encapsulated in neat PDSMS is investigated and its performance against high pressure is evaluated. The sensing behavior was found to be significantly different depending on the pressure level (below or above 1.5 MPa), while adjusting the CNT content improves the sensitivity at higher loads. This kind of smart seals based on nanocomposite pressure sensors can be applied in different fields of industry, such as manufacturing, automotive, aerospace and even energy as smart seal for monitoring in-between plates' pressure in hydrogen fuel cells.","PeriodicalId":207918,"journal":{"name":"2021 International Workshop on Impedance Spectroscopy (IWIS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127768227","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
Modeling Reflections in a Complex Cable Structure with Impedance Mismatches 具有阻抗不匹配的复杂电缆结构反射建模
2021 International Workshop on Impedance Spectroscopy (IWIS) Pub Date : 2021-09-29 DOI: 10.1109/IWIS54661.2021.9711910
Dhia Haddad, Ahmed Yahia Kallel, N. B. Ben Amara, O. Kanoun
{"title":"Modeling Reflections in a Complex Cable Structure with Impedance Mismatches","authors":"Dhia Haddad, Ahmed Yahia Kallel, N. B. Ben Amara, O. Kanoun","doi":"10.1109/IWIS54661.2021.9711910","DOIUrl":"https://doi.org/10.1109/IWIS54661.2021.9711910","url":null,"abstract":"Reflections may occur in cables and transmission lines due to several reasons, such as junctions, so-called soft faults, or due to a mismatch between the terminating resistors and the characteristic impedance of the transmission line in the worst case as short circuits or open circuits, so called hard faults. For fault diagnostic based on Time-domain Reflectometry in complex cables, it is important to model the influence of impedance mismatches on the reflected signals to attribute the reflection peaks to the corresponding fault. In this paper, we propose an all-in-one model for the effect of impedance mismatches i.e. junctions, soft and hard faults, and mismatch between the cables and the connected devices at their ports. The model validation is carried out on a cable network modeled with distributed RLCG cable models. For simulation, a cable network has been defined with a direct path of 240 m, including two soft faults and two junctions, with an impedance mismatch between the cable and the reflectometer device. The results show good conformity between the analytical model and the simulation results. The deviations are in the range of 0.955 mV corresponding to 0.312 % of the simulated reflected signal, and the soft faults showed the highest participation in voltage deviation.","PeriodicalId":207918,"journal":{"name":"2021 International Workshop on Impedance Spectroscopy (IWIS)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115062657","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
Impedance Properties of Trabecular Bone Based on Different Analytical Methods 基于不同分析方法的骨小梁阻抗特性研究
2021 International Workshop on Impedance Spectroscopy (IWIS) Pub Date : 2021-09-29 DOI: 10.1109/IWIS54661.2021.9711811
Wenzuo Wei, Juergen F. Kolb
{"title":"Impedance Properties of Trabecular Bone Based on Different Analytical Methods","authors":"Wenzuo Wei, Juergen F. Kolb","doi":"10.1109/IWIS54661.2021.9711811","DOIUrl":"https://doi.org/10.1109/IWIS54661.2021.9711811","url":null,"abstract":"Electrical impedance spectroscopy (EIS) was used to characterize the impedance properties of bone tissue and the relationship between these properties and bone microstructure. Therefore, the impedance properties of trabecular bone were studied based on different methods and models, including equivalent circuit model (ECM), i.e. Cole-Cole model, multivariate analysis, i.e. Linear Discriminant Analysis (LDA), and Effective Medium Approximation (EMA). With the latter, besides other components, especially the bone volume fraction (BV/TV) can be determined with results comparable to calculations for images from microcomputer-tomography.","PeriodicalId":207918,"journal":{"name":"2021 International Workshop on Impedance Spectroscopy (IWIS)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123003130","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
Lead-Free Ba0.85Ca0.15Zr0.1 Ti0.1O3 for High Piezoelectric Performance Flexible Nanogenerator 高压电性能柔性纳米发电机无铅Ba0.85Ca0.15Zr0.1 Ti0.1O3
2021 International Workshop on Impedance Spectroscopy (IWIS) Pub Date : 2021-09-29 DOI: 10.1109/IWIS54661.2021.9711813
Sarra Missaoui, A. Bouhamed, Hanen Nouri, Najmeddine Abdelmoulah, Hamadi Khemakham, O. Kanoun
{"title":"Lead-Free Ba0.85Ca0.15Zr0.1 Ti0.1O3 for High Piezoelectric Performance Flexible Nanogenerator","authors":"Sarra Missaoui, A. Bouhamed, Hanen Nouri, Najmeddine Abdelmoulah, Hamadi Khemakham, O. Kanoun","doi":"10.1109/IWIS54661.2021.9711813","DOIUrl":"https://doi.org/10.1109/IWIS54661.2021.9711813","url":null,"abstract":"Owing to the growing number of personal electronic devices and the resulting growing global energy consumption have necessitated the development of efficient and flexible electronic devices to harvest energy, nanogenerator based on piezoelectric principle is one of those smart devices that offers the required properties, and can converts mechanical energy such as human motion into electrical energy. Piezoelectric nanocomposite based on lead-free BCZT nanoparticles and PDMS polymer has shown excellent piezoelectric property. In this paper, BCZT was synthesized using a sol-gel method to increase the particles piezoelectric coefficient. Different nanogenerators have been realized based on different concentration of BCZT. Nanogenerator with (15 wt. % BCZT) ows outstanding output performance with open circuit voltage of 13 V and output power $mathrm{P}=2.218 mu mathrm{W}$ for resistance $mathrm{R}=370 mathrm{k}Omega$ using the shaker device.","PeriodicalId":207918,"journal":{"name":"2021 International Workshop on Impedance Spectroscopy (IWIS)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128148526","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
Electrochemical Sensor for 4-Aminophenol Based on Flexible Laser Induced Graphene 基于柔性激光诱导石墨烯的4-氨基酚电化学传感器
2021 International Workshop on Impedance Spectroscopy (IWIS) Pub Date : 2021-09-29 DOI: 10.1109/IWIS54661.2021.9711859
Salem Nasraoui, A. Al-Hamry, S. Ameur, M. Ali, O. Kanoun
{"title":"Electrochemical Sensor for 4-Aminophenol Based on Flexible Laser Induced Graphene","authors":"Salem Nasraoui, A. Al-Hamry, S. Ameur, M. Ali, O. Kanoun","doi":"10.1109/IWIS54661.2021.9711859","DOIUrl":"https://doi.org/10.1109/IWIS54661.2021.9711859","url":null,"abstract":"In the present work, a flexible laser 405 nm induced graphene (LIG) on polyimide (Kapton) was used as a simple, inexpensive electrochemical transducer for determination of 4-Aminophenol (4-AP). The LIG was modified with MWCNT-PANI in-situpolymerized in acidic medium show high sensitivity toward the determination of 4-AP and a detection limit $0.1 mumathrm{M}$ at the range from $0.006 mumathrm{M}$ to $55 mumathrm{M}$.","PeriodicalId":207918,"journal":{"name":"2021 International Workshop on Impedance Spectroscopy (IWIS)","volume":"242 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123747072","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
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