2017 Progress In Electromagnetics Research Symposium - Spring (PIERS)最新文献_第4页

Objects detection and recognition in biomedical microscopic images for the purpose of non-invasive and more precise diagnostic 生物医学显微图像中的物体检测与识别，以达到非侵入性和更精确的诊断目的

2017 Progress In Electromagnetics Research Symposium - Spring (PIERS) Pub Date : 2017-05-22 DOI: 10.1109/PIERS.2017.8262301

Zuzana Loncová, L. Hargaš, D. Koniar, A. Simonová, B. Kozacek

{"title":"Objects detection and recognition in biomedical microscopic images for the purpose of non-invasive and more precise diagnostic","authors":"Zuzana Loncová, L. Hargaš, D. Koniar, A. Simonová, B. Kozacek","doi":"10.1109/PIERS.2017.8262301","DOIUrl":"https://doi.org/10.1109/PIERS.2017.8262301","url":null,"abstract":"In the last years, it has become very popular as well as significant to diagnose patients as less invasively as only it is possible. This becomes extremely important mainly when diagnosing adolescent patients or even babies. This paper describes the possibilities of medical diagnostics from a different point of view which is the evaluation of microscopic biomedical images of patient's body instead of examining him directly, i.e., invasively. The subject of research is human respiratory system and its diseases which are often caused or closely connected with proper function of small microscopic structures which should serve to clean one's airways. Such structures are called cilia of respiratory epithelium and can be found within nose, trachea or bronchi. The old way of diagnostic of a patient who is suspected to suffer from a disease called Primary ciliary dyskinesia (PCD), as he often undergoes serious inflammations and other breathing complications, comprises several repeated bronchoscopies which cut a small pieces of epithelium from selected parts of respiratory apparatus that are consequently observed using microscope. This is very uncomfortable and many times very hard to perform as the most affected group of patients are children under the age of three. Moreover, evaluation of microscopic samples is often imprecise because doctors assess it subjectively and the proper frequency of ciliary movement is only estimated and classified “slow” or “quick enough”, without accurate value. This paper proposes automated, much faster and much more exact ways of frequency measurements of ciliary movement based on processing and segmentation of biomedical microscopic images, which means more precise evaluation of patient's ciliary health status without such invasiveness as it is used during older methods of examination.","PeriodicalId":387984,"journal":{"name":"2017 Progress In Electromagnetics Research Symposium - Spring (PIERS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131500748","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

Four-dimensional electromagnetic field theory 四维电磁场理论

2017 Progress In Electromagnetics Research Symposium - Spring (PIERS) Pub Date : 2017-05-22 DOI: 10.1109/PIERS.2017.8261969

A. K. Tomilin

引用次数: 0

Effective conductivity tensor of plasmonic anisotropic metasurface: Theory and experiment 等离子体各向异性超表面的有效电导率张量:理论与实验

2017 Progress In Electromagnetics Research Symposium - Spring (PIERS) Pub Date : 2017-05-22 DOI: 10.1109/PIERS.2017.8261988

O. Yermakov, I. Mukhin, A. Samusev, A. Bogdanov, I. Iorsh

引用次数: 1

Laser induced cell death stages investigation by Raman spectroscopy 激光诱导细胞死亡阶段的拉曼光谱研究

2017 Progress In Electromagnetics Research Symposium - Spring (PIERS) Pub Date : 2017-05-22 DOI: 10.1109/PIERS.2017.8261707

A. Zyubin, I. Alekseenko, I. Samusev, S. Babak, M. Demin, V. Bryukhanov

引用次数: 0

High gain reduced ground terahertz microstrip patch antenna design for the detection of trinitrotoluene (TNT) explosives material 用于三硝基甲苯(TNT)炸药材料探测的高增益降地太赫兹微带贴片天线设计

2017 Progress In Electromagnetics Research Symposium - Spring (PIERS) Pub Date : 2017-05-22 DOI: 10.1109/PIERS.2017.8261877

S. Saini, Gurleen Kaur, Nitika Rani, Jasleen Kaur, Ekambir Sidhu

{"title":"High gain reduced ground terahertz microstrip patch antenna design for the detection of trinitrotoluene (TNT) explosives material","authors":"S. Saini, Gurleen Kaur, Nitika Rani, Jasleen Kaur, Ekambir Sidhu","doi":"10.1109/PIERS.2017.8261877","DOIUrl":"https://doi.org/10.1109/PIERS.2017.8261877","url":null,"abstract":"In this demonstrative research work, a high gain reduced ground terahertz (THz) rectangular microstrip patch antenna suitable to be employed for detection of Trinitrotoluene (TNT) explosives have been proposed. The polycarbonate material having dielectric constant (εr) 2.1 with thickness of 0.7 μm has been proposed to be employed as substrate in the antenna design. In the proposed antenna, the substrate is sandwiched between the patch and ground made up of copper material having thickness 0.05 μm with conductivity of 5.67 × 107S/m2. The proposed antenna has been designed using reduced ground structure to enhance in bandwidth and return losses. The proposed antenna has been designed and simulated using Computer Simulation Technology (CST) Studio Suite 2016. The performance of the proposed antenna has been scrutinized in terms of different antenna parameters such as return loss (Su), directivity (dBi), gain (dB), bandwidth (THz), VSWR and Half Power Beam Width (HPBW). It has been analyzed that the proposed antenna has an impedance bandwidth of 0.43065 THz with an operating frequency range of 8.8919 THz-9.3225 THz and resonant frequency (fr) of 9.108 THz. The gain and directivity of the proposed antenna is 7.357 dB and 7.127 dBi at resonant frequency of 9.108 THz. The proposed antenna has impedance of 50.06 ohm making it suitable to be fed by SMA connector of 50ohms impedance. The proposed antenna has return loss (S11) of 69.03 dB at resonant frequency of 9.108 THz. The proposed antenna can be suitably employed for the detection of the Trinitrotoluene (TNT) explosives.","PeriodicalId":387984,"journal":{"name":"2017 Progress In Electromagnetics Research Symposium - Spring (PIERS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132102310","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: 8

Hyperbolic chaos and quasiperiodic dynamics in experimental nonautonomous systems of coupled oscillators 耦合振子实验非自治系统中的双曲混沌和准周期动力学

2017 Progress In Electromagnetics Research Symposium - Spring (PIERS) Pub Date : 2017-05-22 DOI: 10.1109/PIERS.2017.8262291

O. Isaeva, D. Savin, E. Seleznev, N. Stankevich

引用次数: 0

Hybridized eigenmodes of periodic wire arrays and their application in radiofrequency coils for preclinical MRI 周期线阵列的杂交特征模式及其在临床前MRI射频线圈中的应用

2017 Progress In Electromagnetics Research Symposium - Spring (PIERS) Pub Date : 2017-05-22 DOI: 10.1109/PIERS.2017.8262394

A. Hurshkainen, A. Nikulin, S. Glybovski, I. Melchakova, P. Belov, B. Larrat, E. Georget, S. Enoch, L. Neves, P. Sabouroux, R. Abdeddaim

引用次数: 0

An improved high angular resolution method by using four-channel jointed monopulse radar 一种改进的四通道联合单脉冲雷达高角分辨方法

2017 Progress In Electromagnetics Research Symposium - Spring (PIERS) Pub Date : 2017-05-22 DOI: 10.1109/PIERS.2017.8262280

Huanyao Dai, Hui Han, Jianlu Wang, Xiong Xu, Huidong Qiao

引用次数: 2

Communication technology for industry 4.0 工业4.0的通信技术

2017 Progress In Electromagnetics Research Symposium - Spring (PIERS) Pub Date : 2017-05-22 DOI: 10.1109/PIERS.2017.8262021

P. Marcon, F. Zezulka, I. Veselý, Z. Szabó, Z. Roubal, O. Sajdl, E. Gescheidtová, P. Dohnal

引用次数: 33

Readout circuit design for noise-based photodetection 基于噪声的光电检测读出电路设计

2017 Progress In Electromagnetics Research Symposium - Spring (PIERS) Pub Date : 2017-05-22 DOI: 10.1109/PIERS.2017.8262395

F. M. Fernandes, G. M. Penello, P. L. Souza

{"title":"Readout circuit design for noise-based photodetection","authors":"F. M. Fernandes, G. M. Penello, P. L. Souza","doi":"10.1109/PIERS.2017.8262395","DOIUrl":"https://doi.org/10.1109/PIERS.2017.8262395","url":null,"abstract":"Signal from a photoconductive detector is usually provided by assessing the electrical current (photocurrent) that is obtained from the photo-excited carriers arising from the absorption process in the presence of an applied bias field. Usually when analyzing the signal from a photodetector the photocurrent noise is treated as an undesirable degree of imprecision carrying no information. We describe in details a readout circuit designed to access the electronic noise induced by the photo-absorption process in the photodetector, at zero bias voltage, and to convert it into a useful detection signal. The main required attributes for the electronics and the proper operational conditions are analysed and exemplified by simulation and experimental results. A basic readout circuit was implemented and their output-signal to imput-noise equivalence curve was characterized using a calibrated white-noise source. We propose and simulate a simple readout-integrated-circuit (ROIC) cell that can be scaled-down to a micrometer pixel level. The simulation results suggests the proposed ROIC cell allows the infrared-focal-plane-array (IRFPA) to be fabricated in a conventional 0.25 μm CMOS fabrication technology. The spectral response of two quantum-well infrared photodetectors (QWIPs), operating in the mid-wavelength infrared, could be obtained when two readout circuits was directly applied as interfaces of a FTIR spectrometer. Since noise is also present at equilibrium, when no bias voltage is applied and no net current flows through the device, this concept expand the use of photodetectors that have high internal quantum efficiency (good absorption) but not necessarily a high external efficiency (large photocurrent) and opens new possibilities for the design of novel types of photodetector heterostructures.","PeriodicalId":387984,"journal":{"name":"2017 Progress In Electromagnetics Research Symposium - Spring (PIERS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131101109","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