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2017 Eleventh International Conference on Sensing Technology (ICST)最新文献

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Colitis screening using IR spectroscopy of serum samples 用红外光谱法筛查血清样品中的结肠炎
Pub Date : 2017-12-01 DOI: 10.1109/ICSENST.2017.8304464
A. Perera, Hemendra Ghimire, K. Perera, É. Viennois, D. Merlin
Rapid and reliable detection of inflammatory bowel diseases is essential to avoid life-threatening intestinal complications. The conventional pathological methods (colonoscopy/ileoscopy and small bowel follow-through) are invasive and time-consuming. A non-invasive and cost-effective diagnostic regime using attenuated total reflectance Fourier transform infrared spectroscopy of serum samples would allow the possibility of early diagnosis of disease and for treatment planning. This study presents the spectroscopic analysis of serum sample using mouse models of both (i) Chronic (IL10-/-, genetically induced by Interleukin 10 knockouts) and (ii) Acute (DSS, Dextran Sodium Sulfate chemically induced) colitis. The Arthritis (Collagen Antibody Induced Arthritis) and metabolic syndrome (Toll-like receptor 5 knockouts) models are employed as controls. The identified markers of colitis such as increased presence of mannose accompanied by an alteration in protein secondary structures uniquely screen disease level and distinguish the colitis from the non-colitis samples and the controls. Promoted by these findings of the colitis mouse model we sought to investigate the capability of the technique for the early screening of the human ulcerative colitis and Crohn's disease.
快速可靠地检测炎症性肠病对于避免危及生命的肠道并发症至关重要。传统的病理方法(结肠镜/回肠镜检查和小肠随访)是侵入性的和耗时的。使用血清样本的衰减全反射傅立叶变换红外光谱的非侵入性和成本效益诊断方案将允许疾病的早期诊断和治疗计划的可能性。本研究采用(i)慢性(il - 10-/-,由白细胞介素10敲除基因诱导)和(ii)急性(DSS,右旋糖酐硫酸钠化学诱导)结肠炎小鼠模型对血清样本进行光谱分析。采用关节炎(胶原抗体诱导关节炎)和代谢综合征(toll样受体5敲除)模型作为对照。已确定的结肠炎标志物,如甘露糖含量增加并伴有蛋白质二级结构的改变,可独特地筛选疾病水平,并将结肠炎与非结肠炎样本和对照组区分开来。在结肠炎小鼠模型的这些发现的推动下,我们试图研究该技术早期筛查人类溃疡性结肠炎和克罗恩病的能力。
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引用次数: 3
Ultra-thin filmed SnO2 gas sensor with a low-power micromachined hotplate for selective dual gas detection of carbon monoxide and methane 超薄薄膜SnO2气体传感器,具有低功耗微机械热板,用于一氧化碳和甲烷的选择性双气体检测
Pub Date : 2017-12-01 DOI: 10.1109/ICSENST.2017.8304508
Inho Kim, K. Seo
We report a metal oxide chemiresistive gas sensor with ultra-thin filmed Au decorated SnO2 as a sensing material on a micro-machined hotplate that combines a micro-heater and interdigitated electrodes. We designed and fabricated the hot plate by micro-electro-mechanical system (MEMS) processes and Au decorated SnO2 thin filmed layer by ion-beam sputtering methods, and investigated gas sensing performance for carbon monoxide and methane gas detection. The gas sensor with 20 nm thickness of SnO2 thin film was operated 100 °C for carbon monoxide and 250 °C for methane detection. The power consumptions were 20 mW and 80 mW for carbon monoxide and methane operating temperature, respectively. Microstructures of material were systemically characterized by FESEM, analytic STEM and AFM. We also discussed the effect of microstructure to gas sensing properties.
我们报道了一种金属氧化物化学气体传感器,该传感器采用超薄薄膜Au装饰SnO2作为传感材料,在结合微加热器和交叉电极的微机械热板上。采用微机电系统(MEMS)工艺设计并制作了热板,采用离子束溅射方法制备了Au修饰的SnO2薄膜层,并研究了用于一氧化碳和甲烷气体检测的气敏性能。采用20 nm SnO2薄膜厚度的气体传感器,在100℃下检测一氧化碳,250℃下检测甲烷。在一氧化碳和甲烷工作温度下,功率消耗分别为20兆瓦和80兆瓦。采用FESEM、分析STEM和AFM对材料的微观结构进行了系统表征。我们还讨论了微观结构对气敏性能的影响。
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引用次数: 4
Analysis of nonlinear pulse propagation and wave-mixing characteristics in SOAs soa中非线性脉冲传播与混波特性分析
Pub Date : 2017-12-01 DOI: 10.1109/ICSENST.2017.8304485
Baji Babu Palagarla, N. Das, M. Razaghi
This paper mainly focuses on nonlinear pulse propagation and four-wave mixing (FWM) characteristics in semiconductor optical amplifiers (SOAs). For simulation, modified nonlinear Schrödinger equation (MNLSE) is used for the modelling of pulse propagation in SOA. In this model, we have included the gain dynamics and all nonlinear effects of the SOAs for simulation. Finite-difference beam propagation method is adopted to solve the MNLSE, obtained nonlinear pulse propagation and FWM characteristics in SOA. The nonlinear pulse propagation characteristics show that the output full width at half maximum (FWHM) is linearly increases with increase of input FWHM. Output pulse energy also increases with the increase of input pulse energy. There are some dips occur at the output spectrum which is due to the gain saturation and self-phase modulation (SPM) effects. The FWM conversion efficiency is good if the detuning is <1 THz Finally, the FWM signal energy highly dependent on the input pump and probe energies. The FWM signal peak power increases exponentially with the increase of SOA length. Our simulation results are suitable for the design of SOAs those are using in high-speed communication systems and sensor network systems.
本文主要研究了半导体光放大器中的非线性脉冲传播和四波混频特性。为了进行仿真,采用修正非线性Schrödinger方程(MNLSE)对SOA中的脉冲传播进行建模。在这个模型中,我们包含了增益动力学和soa的所有非线性效应进行仿真。采用有限差分波束传播方法求解非线性最小最小熵,得到了SOA中的非线性脉冲传播和FWM特性。非线性脉冲传播特性表明,输出半峰全宽随输入峰宽的增大而线性增加。输出脉冲能量也随着输入脉冲能量的增加而增加。由于增益饱和和自相位调制(SPM)的影响,输出频谱出现了一些下降。当失谐<1 THz时,混FWM转换效率较好。最后,混FWM信号能量高度依赖于输入泵浦和探头能量。随着SOA长度的增加,FWM信号峰值功率呈指数增长。本文的仿真结果适用于高速通信系统和传感器网络系统中soa的设计。
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引用次数: 1
Real time monitoring and recognition of eating and physical activity with a wearable device connected to the eyeglass 通过与眼镜相连的可穿戴设备实时监控和识别饮食和身体活动
Pub Date : 2017-12-01 DOI: 10.1109/ICSENST.2017.8304420
Muhammad Farooq, E. Sazonov
Motion artifacts and speech have been found to degrade the accuracy of wearable device used for detection and recognition of food intake. Thus, there is a need to investigate and develop systems which are impervious to these artifacts. For these systems to be practical in daily living, it is necessary to evaluate their ability to monitor food intake in real-time. This study presents results of real-time testing of a wearable device for real-time classification of multiclass activities. The device consists of a sensor for chewing detection (piezoelectric film sensor) and an accelerometer for physical activity monitoring. The device is in the form of eyeglasses. The strain sensor is attached to the temporalis muscle for chewing detection. Ten participants tested the system while performing activities including eating at rest, talking, walking and eating while walking. For 5-second epochs, ten features were extracted from both sensor signals. A communication protocol was implemented where sensor data were uploaded to a remote server for real-time data processing. Data processing was performed in two steps. In the first step, a multiclass decision tree model was trained offline with data from seven participants to differentiate among eating/chewing and non-eating and two levels of physical activity (sedentary and physically active). In the second step, the trained model was used on remaining three participants to predict the activity label in real-time. Offline classification and real-time online classification achieved average F1-scores of 93.15% and 94.65% respectively. These results indicate that the device can accurately differentiate between epochs of eating and non-eating as well as epochs of two different physical activity levels; in real-time.
人们发现运动伪影和语音会降低用于检测和识别食物摄入的可穿戴设备的准确性。因此,有必要调查和开发不受这些工件影响的系统。为了使这些系统在日常生活中实用,有必要评估它们实时监测食物摄入的能力。本研究提出了一种可穿戴设备的实时测试结果,用于多类别活动的实时分类。该装置由一个用于咀嚼检测的传感器(压电薄膜传感器)和一个用于身体活动监测的加速度计组成。该装置以眼镜的形式出现。应变传感器附着在颞肌上进行咀嚼检测。10名参与者在进行活动时测试了该系统,包括休息时吃东西、说话、走路和走路时吃东西。以5秒为周期,从两个传感器信号中提取10个特征。实现了将传感器数据上传到远程服务器进行实时数据处理的通信协议。数据处理分两步进行。在第一步中,使用来自7名参与者的数据离线训练多类决策树模型,以区分进食/咀嚼和不进食以及两种水平的身体活动(久坐和身体活动)。第二步,将训练好的模型用于剩余三名参与者,实时预测活动标签。离线分类和实时在线分类的平均f1得分分别为93.15%和94.65%。这些结果表明,该装置可以准确区分进食和不进食时期以及两种不同身体活动水平的时期;在实时。
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引用次数: 14
Influence of temperature and humidity on carbon based printed flexible sensors 温度和湿度对碳基印刷柔性传感器的影响
Pub Date : 2017-12-01 DOI: 10.1109/ICSENST.2017.8304462
A. Nag, S. Mukhopadhyay, J. Kosel
This paper presents the response of two different types of novel printed sensors towards the change in temperature and humidity. The electrodes of all the sensors were based on carbon materials. Followed by the design and fabrication of the sensors, the responses of the sensors were analyzed for different temperature and humidity conditions in an incubator. These results provide a podium to enhance the alternation of the fabrication procedure of carbon-based printed sensors.
本文介绍了两种不同类型的新型印刷传感器对温度和湿度变化的响应。所有传感器的电极都是基于碳材料。通过传感器的设计与制作,分析了传感器在培养箱中不同温度和湿度条件下的响应。这些结果为改进碳基印刷传感器的制造工艺提供了基础。
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引用次数: 5
Physical rehabilitation based on kinect serious games 基于kinect的物理康复严肃游戏
Pub Date : 2017-12-01 DOI: 10.1109/ICSENST.2017.8304512
Diogo Ferreira, Raúl Oliveira, O. Postolache
This article presents a serious game framework developed using Unity 3D game engine and Kinect V2 sensor as a natural user interface. The developed serious games are used for objective evaluation of physical rehabilitation considering the Kinect V2 sensors for 3D motion detection of different body joints training and provide different types of data, such as angles velocities, for physiotherapists and patients during the rehabilitation process. The framework provide data storage capability in a remote database thus patient's biometric data, patients' medical record, obtained scores during serious game based training and values of metrics such as the distance between feet during game, left right feet usage frequency and execution time for imposed movement associated with game mechanics. A general description of the applied technologies on serious game for lower limb rehabilitation developments as so as the experimental results obtained for a set of volunteers are included in the paper.
本文介绍了一个使用Unity 3D游戏引擎和Kinect V2传感器作为自然用户界面的严肃游戏框架。所开发的严肃游戏,结合Kinect V2传感器对不同身体关节训练进行3D运动检测,用于物理康复的客观评估,为物理治疗师和患者在康复过程中提供不同类型的数据,如角度速度等。该框架在远程数据库中提供数据存储能力,因此患者的生物特征数据,患者的医疗记录,在基于严肃游戏的训练中获得的分数和参数值,如游戏期间脚之间的距离,左右脚使用频率和与游戏机制相关的强制运动的执行时间。本文概述了严肃游戏在下肢康复发展中的应用技术,以及对一组志愿者的实验结果。
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引用次数: 18
Random forest based-biometric identification using smart shoes 基于随机森林的智能鞋生物识别
Pub Date : 2017-12-01 DOI: 10.1109/ICSENST.2017.8304518
Jeong-Kyun Kim, K. Lee, S. Hong
This study presents a biometrie identification based on gait (with shoe wearable sensors). Biometrie identification is an excellent method to often alternate inconvenient interaction such as PIN and patterns in smart device. To help elderly person who cannot control smart devices by themselves, it is required to assist automatic personalization by identifying users sharing a device. In this study, we proposed an algorithm combined the discrete cosine transform for detecting frequency feature and random forest which classifies subjects. We performed an experiment for 8 subjects by walking with the smart shoes. Finally, the result demonstrates a user recognition accuracy of 97.9 % and an equal error rate of 2.4%.
本研究提出了一种基于步态的生物特征识别方法(利用鞋子可穿戴传感器)。在智能设备中,生物特征识别是一种很好的方法,可以经常替代不方便的交互,如PIN和模式。为了帮助不能自己控制智能设备的老年人,需要通过识别共享设备的用户来辅助自动个性化。在本研究中,我们提出了一种将离散余弦变换检测频率特征与随机森林分类相结合的算法。我们对8名受试者进行了穿着智能鞋行走的实验。结果表明,用户识别准确率为97.9%,错误率为2.4%。
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引用次数: 5
Towards an inexpensive paper based flexible chipless RFID tag with increased data capacity 迈向一种廉价的基于纸张的柔性无芯片RFID标签,增加了数据容量
Pub Date : 2017-12-01 DOI: 10.1109/ICSENST.2017.8304469
S. Dey, N. Karmakar
This paper exemplifies the design and analysis of an inexpensive, compact high data capacity chipless RFID tag on flexible paper substrate. The size of the overall tag with integrated antennas is similar to that of a credit card. The designed tag uses polarization diversity to provide a bit capacity of up to 30 bits in the short range UWB band of 22–26.5 GHz. A systematic progression on to the incorporation of increased number of bit capacity is depicted hereby. Along with frequency variation, this paper also proposes the scheme for bit detection using phase difference determination in order to increase robustness. An interrogation process of the proposed tag to extract the encoded information is demonstrated here and the resulting analysis establishes the reliability of the designed tag.
本文举例说明了在柔性纸基板上设计和分析一种廉价、紧凑、高数据容量的无芯片RFID标签。集成天线的整体标签大小与信用卡类似。设计的标签采用极化分集技术,在22-26.5 GHz的短距离UWB频段提供高达30比特的比特容量。在此描述一种系统的进展,以结合增加的位容量数目。随着频率的变化,本文还提出了一种利用相位差确定比特检测的方案,以提高鲁棒性。本文演示了对所提出的标签进行问询以提取编码信息的过程,结果分析确定了所设计标签的可靠性。
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引用次数: 7
Dielectric resonator antenna integrated sensors for characterization of concrete 混凝土表征用介电谐振器天线集成传感器
Pub Date : 2017-12-01 DOI: 10.1109/ICSENST.2017.8304515
S. Sabrin, S. Kharkovsky, Robert Salama
This paper presents a two-antenna setup based on dielectric resonator antenna (DRA) and used as a sensing system for characterization of construction materials such as concrete. In this two-antenna setup, a DRA that acts as a receiving sensor-integrated antenna is embedded inside concrete and another external DRA (placed in free space) transmits wireless power to the embedded antenna. Both antennas are fed by X-band (8.2–12.4 GHz) open ended waveguide antennas (OEWAs). Transmission coefficients, reflection coefficients and electric-field distributions of these setups are investigated in the frequency range from 8 to 15 GHz. These investigations are performed with relatively long and short DRAs, and with OEWAs (without DRAs). In addition, sensitivity of the two-antenna sensing system to changes in values of the dielectric constants and loss tangent of concrete with the three antennas are analyzed. It is shown that the two-antenna sensing system with the long DRA and OEWA are more sensitive to the changes of both the loss tangent and dielectric constant of concrete than with the short DRA. However, the short DRA had a better performance with a magnitude of transmission coefficient that is significantly higher than those of the long DRA and the OEWA.
本文提出了一种基于介质谐振器天线(DRA)的双天线装置,并将其用作表征混凝土等建筑材料的传感系统。在这种双天线设置中,一个DRA作为接收传感器集成天线嵌入混凝土中,另一个外部DRA(放置在自由空间中)向嵌入的天线传输无线电力。两个天线都由x波段(8.2-12.4 GHz)开放式波导天线(OEWAs)馈电。研究了这些装置在8 ~ 15 GHz频率范围内的透射系数、反射系数和电场分布。这些调查是在相对较长和较短的DRAs以及OEWAs(没有DRAs)下进行的。此外,还分析了双天线传感系统对混凝土介质常数和损耗正切值变化的灵敏度。结果表明,与较短的双天线传感系统相比,长DRA和OEWA的双天线传感系统对混凝土的损耗正切和介电常数的变化更为敏感。而短DRA的传输系数明显高于长DRA和OEWA的传输系数。
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引用次数: 4
An automatic electronic tongue system for classification of Indian wine 用于印度葡萄酒分类的自动电子舌系统
Pub Date : 2017-12-01 DOI: 10.1109/ICSENST.2017.8304458
Pauroosh Kaushal, R. Mudhalwadkar, Gitesh R. Mhatre
An automatic electronic tongue set up consisting of a robotic arm, potentiostat and rotary sample holder is developed in this work. The assembly mainly consists of a five motor robotic arm, a rotary sample holder platform having slots for placing sample to be investigated and a GAMRY potentiostat Interface 1000 A is used to perform cyclic voltammetry. The modelling of sample holder and robotic arm is done in CATIA software. The system uses an array of six working electrodes along with a reference and counter electrode to carry out cyclic voltammetry on three types of Indian wine. The generated data is then processed using Principal Component Analysis and Linear Discriminant Analysis classifier for classification purpose.
研制了一种由机械臂、恒电位器和旋转样品夹组成的自动电子舌装置。该组件主要包括一个五电机机械臂,一个带有放置待测样品槽的旋转样品支架平台,以及一个用于执行循环伏安法的GAMRY恒电位器接口1000a。在CATIA软件中对样品架和机械臂进行了建模。该系统使用由六个工作电极组成的阵列,以及一个参比电极和反电极,对三种印度葡萄酒进行循环伏安测定。然后使用主成分分析和线性判别分析分类器对生成的数据进行分类处理。
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引用次数: 3
期刊
2017 Eleventh International Conference on Sensing Technology (ICST)
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