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Electrogastrography- A Non-Invasive technique 电胃镜--一种非侵入性技术
Pub Date : 2019-03-15 DOI: 10.23883/IJRTER.2019.5033.LL72M
Achind Pandey, J. Virdi, S. Panaskar
EGG is abnormal, it confirms that the problem probably is with the stomach’s muscles or the nerves that control the muscles. EGG is a non-invasive method for the recording of gastric myoelectrical activity that controls gastric motility. Abnormality in EGG arises due to recurrent nausea, vomiting, dyspepsia, stomach ulcer, cyclic vomiting syndrome, etc which signals that the stomach is not emptying food normally. If the EGG is similar to an electrocardiogram of the heart. It is the recording of the electrical signals that travel through the muscles of the stomach and control the muscle’s contraction. EGG used when there is a suspicion that the muscles of the stomach or the nerves controlling the muscles are not working normally. Recording is done by placing the electrode cutaneously over the stomach and the electrical signals from the stomach’s muscles are sensed by the electrode and recorded on a computer for analysis. In normal individuals, EGG is a regular electrical rhythm generated by the muscles of the stomach and the strength of the electrical current increases after the meal. In patients with abnormalities of the muscles or nerves of the stomach, the rhythm often is irregular or there is no post-meal increase in electric power.
如果 EGG 异常,则证实问题可能出在胃部肌肉或控制肌肉的神经上。EGG 是一种非侵入性方法,用于记录控制胃蠕动的胃肌电活动。EGG 异常的原因包括反复恶心、呕吐、消化不良、胃溃疡、周期性呕吐综合征等,这些都是胃不能正常排空食物的信号。如果 EGG 类似于心脏的心电图。它记录的是通过胃部肌肉传播并控制肌肉收缩的电信号。当怀疑胃部肌肉或控制肌肉的神经工作不正常时,就会使用 EGG。记录的方法是将电极切口置于胃部,通过电极感应胃部肌肉发出的电信号,并将其记录在电脑上进行分析。正常人的胃电图是胃部肌肉产生的一种有规律的电子节律,餐后电流强度会增加。而胃部肌肉或神经异常的患者,其节律往往不规则,或餐后电流强度没有增加。
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引用次数: 0
Education 4.0: Bridging the Gap between the Fresher’s & Industrial Expectations 教育4.0:弥合新生与行业期望之间的差距
Pub Date : 2019-03-15 DOI: 10.23883/IJRTER.CONF.20190322.093.4XT7P
E. Ramkumar, R. Vani
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引用次数: 0
A Modified Three phase Current Source Inverter for Modular Photovoltaic Applications 一种用于模块化光伏应用的改进三相电流源逆变器
Pub Date : 2019-03-04 DOI: 10.23883/ijrter.conf.20190304.031.cp2lq
M. Saravanakumar, S. Ramesh, R. Ramya
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引用次数: 0
COPY MOVE FORGERY DETECTION IN VIDEO FORENSICS USING OPTICAL FLOW FOR COARSE TO FINE DETECTION 复制移动伪造检测在视频取证中应用于光流进行粗到精的检测
Pub Date : 2019-03-04 DOI: 10.23883/ijrter.conf.20190304.002.vdfj0
Aiswerya S.B, P. Deepa
Video copy-move forgery detection is used in multimedia forensics to protect digital videos from malicious use. Based on multiple similarity calculations and unstable image features the detection efficiency, robustness and applicability can be balanced. A novel approach has been proposed to detect frame copy-move forgeries. A coarse-to-fine detection strategy based on optical flow and stable parameters is designed. Coarse detection analyzes OF sum consistency to find suspected tampered points. Fine detection is then conducted for precise location of forgery, including duplicated frames pair matching based on OF correlation and validation checks to further reduce the false detections. The proposed approach is effective and efficient in detecting both unsmooth and common smooth forgery. Also it has high robustness. Keywords—Copy-move forgery, optical flow, coarse–to-fine detection, video passive forensics.
视频复制移动伪造检测用于多媒体取证,以保护数字视频免受恶意使用。基于多次相似度计算和不稳定的图像特征,可以平衡检测效率、鲁棒性和适用性。提出了一种检测帧复制-移动伪造的新方法。设计了一种基于光流和稳定参数的粗变精检测策略。粗检测通过分析OF和的一致性来发现疑似篡改点。然后进行精细检测,精确定位伪造,包括基于of相关性的重复帧对匹配和验证检查,进一步减少假检测。该方法对非光滑伪造和普通光滑伪造都具有较好的检测效果。同时具有较高的鲁棒性。关键词:复制移动伪造,光流,粗精检测,视频被动取证。
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引用次数: 0
Raspberry Pi Based Reader for Blind Peoples 基于树莓派的盲人阅读器
Pub Date : 2019-03-04 DOI: 10.23883/ijrter.conf.20190304.036.vaek3
C. P. Nirmal, Sindha Mathar, M. Thamaraikani, K. Sridhar
Optical character recognition (OCR) is the identification of printed characters using photoelectricdevices and computer software. It coverts images of typed, handwritten or printed text into machine encoded text from scanned document or from subtitle text superimposed on an image. In this research these images are converted into audio output. OCR is used in machine process such as cognitive computing, machine translation, text to speech ,key data and text mining. It is mainly used in the field of research in Character recognition , Artificial intelligence and computer vision .In this research , as the recognition process is done using OCR the character code in text files are processed using Raspberry Pi device on which it recognizes character using tesseract algorithm and python programming and audio output is listened. To use OCR for pattern recognition to perform Document image analysis (DIA) we use information in grid format in virtual digital library’s design and construction. This research mainly focuses on the OCR based automatic book reader for the visually impaired using Raspberry PI. Raspberry PI features a Broadcom system on a chip (SOC) which includes ARM compatible CPU and an on chip graphics processing unit GPU. It promotes Python programming as main programming language with support for BBC BASIC
光学字符识别(OCR)是利用光电设备和计算机软件对印刷字符进行识别。它将打印、手写或打印文本的图像从扫描文档或从叠加在图像上的字幕文本转换为机器编码的文本。在本研究中,这些图像被转换成音频输出。OCR应用于认知计算、机器翻译、文本到语音、关键数据和文本挖掘等机器过程中。它主要应用于字符识别、人工智能和计算机视觉等领域的研究。在本研究中,由于识别过程是使用OCR完成的,使用树莓派设备对文本文件中的字符代码进行处理,在该设备上使用tesseract算法和python编程进行字符识别,并听取音频输出。在虚拟数字图书馆的设计和建设中,采用网格格式的信息,利用OCR进行模式识别,实现文档图像分析。本课题主要研究了基于OCR的基于树莓派的视障人士自动图书阅读器。树莓派采用Broadcom系统的片上系统(SOC),其中包括ARM兼容的CPU和片上图形处理单元GPU。它将Python编程作为主要编程语言,并支持BBC BASIC
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引用次数: 0
A Comparative study of LTE Downlink Scheduling Algorithm LTE下行链路调度算法的比较研究
Pub Date : 2019-03-04 DOI: 10.23883/ijrter.conf.20190304.014.mbgxp
M. Moses, K. Yogeshvaran
LTE is widely used mobile communication technology. Long Term Evolution (LTE) standard is conceived as an all IP network to achieve higher data rate, low latency, scalable bandwidth, mobility and extended coverage. The network guarantees Quality of Service (QoS) for diverse applications such as VoIP, video and web browsing according to the Third Generation Partnership Project (3GPP) specifications. The Radio Resource Management (RRM) techniques such as packet scheduling algorithm play a vital role in providing such guarantees. The LTE introduces enhanced data link mechanisms to support successful implementation of new data services across the network. This paper presents a survey of downlink scheduling algorithms. The following scheduling algorithms are considered: Round Robin, Proportional Fair, Best CQI, Resource Fair and MaxMin. The comparative analysis of these algorithms is also presented. Keywords— LTE, downlink scheduling, Round Robin, Proportional Fair, Best CQI, Resource Fair
LTE是一种应用广泛的移动通信技术。长期演进(LTE)标准被认为是一个全IP网络,以实现更高的数据速率、低延迟、可扩展带宽、移动性和扩展的覆盖范围。该网络根据第三代合作伙伴计划(3GPP)规范,保证了VoIP、视频和网页浏览等多种应用的服务质量(QoS)。无线资源管理(RRM)技术,如分组调度算法,在提供这种保障方面起着至关重要的作用。LTE引入了增强的数据链路机制,以支持跨网络成功实现新的数据业务。本文对下行链路调度算法进行了综述。考虑了以下调度算法:轮询、比例公平、最佳CQI、资源公平和MaxMin。并对这些算法进行了比较分析。关键词:LTE,下行调度,轮询,比例公平,最佳CQI,资源公平
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引用次数: 0
SINGLE PHASE TO THREE PHASE UNIFIED POWER QUALITY CONDITIONER APPLIED IN SWER ELECTRIC POWER DISTRIBUTION GRIDS 单相至三相统一电能质量调理器应用于电力配电网
Pub Date : 2019-03-04 DOI: 10.23883/ijrter.conf.20190304.040.7oz7o
S. S., Dhanesh Raj.T, P.Priyanka Darling Rosita
This paper deals with the deployment of a local three-phase four-wire (3P4W) electrical power distribution system (EPDS), using a singleto three-phase unified power quality conditioner (UPQC) topology, called UPQC-1Ph-to-3Ph. The topology is indicated for applications in rural or remote areas in which, for economic reasons, only EPDS with single-wire earth return are accessible to the consumer. Since the use of three-phase loads is increasing in these areas, access to a threephase distribution system becomes preponderant. By adopting a dual compensation strategy, the proposed UPQC-1Ph-to-3Ph is able of draining from the single-phase electrical grid a sinusoidal current and in phase with the voltage, resulting high-power factor. Furthermore, the system is also able to suppress grid voltage harmonics, as well as to compensate for other disturbance, such as voltage sags. Thus, a 3P4W system with regulated, balanced, and sinusoidal voltages with low-harmonic contents is provided for singleand three-phase loads. An analysis of the power flow through the series and parallel converters is performed in order to aid the designing of the power converters. Experimental results are presented for validating the proposal, as well as evaluating the static and dynamic performances of the proposed topology.
本文讨论了一个本地三相四线制(3P4W)配电系统(EPDS)的部署,该配电系统采用单三相统一电能质量调节器(UPQC)拓扑,称为UPQC- 1ph - 3ph。该拓扑结构适用于农村或偏远地区的应用,在这些地区,出于经济原因,只有具有单线接地返回的EPDS才可供消费者使用。由于在这些地区三相负荷的使用越来越多,使用三相配电系统成为优势。通过采用双补偿策略,所提出的upqc - 1ph - 3ph能够从单相电网中抽出正弦电流并与电压相一致,从而产生高功率因数。此外,该系统还能够抑制电网电压谐波,以及补偿其他干扰,如电压跌落。因此,为单相和三相负载提供了一个具有低谐波内容的调节、平衡和正弦电压的3P4W系统。对串联变换器和并联变换器的功率流进行了分析,以辅助变换器的设计。实验结果验证了该方案,并评估了该拓扑的静态和动态性能。
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引用次数: 0
Smart Farming 智能农业
Pub Date : 2019-03-04 DOI: 10.23883/ijrter.conf.20190304.037.u7ci1
M. Soosai Vimal, K. Selva, N. Lingeswaran, S. Prabhu
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引用次数: 0
COOPERATIVE SPECTRUM SENSING IN COGNITIVE RADIO 认知无线电中的协同频谱感知
Pub Date : 2019-03-04 DOI: 10.23883/ijrter.conf.20190304.024.mrhue
Jenish Dev, B. Mathumitha, M. A. Bharathi, M. Rachel, A. Anu
In cognitive radio (CR) networks, cooperative spectrum sensing is utilized to improve the sensing performance to avoid potential interference to primary users (PUs) and increase spectrum access opportunities for secondary users (SUs). The problem of how to collect sensing data should be solved for the implementation of the cooperative sensing. A cooperative spectrum sensing process is divided into three phases: individual sensing/detection, reporting/fusion, and data transmission. In the reporting phase, one or more reporting channels are needed to transmit individual sensing results to a fusion center (FC), and global spectrum sensing results are determined at the FC. The number of required reporting channels depends on the number of spectrum sensors or SUs, which relates to reporting channel efficiency and channel scheduling complexity. In the proposed scheme, random access is used to collect the spectrum sensing data of the secondary users during collection period and the length of the collection period is determined adaptively based on the sensing data collected so far. Thus, complex slot management for the collection of the sensing data is not necessary. Also we design a reporting channel scheme based on random access protocols, including slotted Aloha and reservation-Aloha. Performance evaluations in terms of PU detection probabilities and false alarm probabilities considering the proposed reporting channels are presented.
在认知无线电(CR)网络中,利用协同频谱感知来提高感知性能,避免对主用户(pu)的潜在干扰,增加辅助用户(su)的频谱访问机会。实现协同感知需要解决如何采集感知数据的问题。一个协同频谱感知过程分为三个阶段:个体感知/检测、报告/融合和数据传输。在报告阶段,需要一个或多个报告通道将单个频谱感知结果传输到融合中心(FC),并在融合中心确定全局频谱感知结果。所需的报告信道数量取决于频谱传感器或单元的数量,这关系到报告信道的效率和信道调度的复杂性。在该方案中,采用随机接入的方式在采集周期内采集二级用户的频谱感知数据,并根据迄今采集到的感知数据自适应确定采集周期的长度。因此,没有必要对传感数据的收集进行复杂的槽管理。设计了一种基于随机访问协议的报告通道方案,包括槽Aloha和保留Aloha。给出了考虑所提出的报告通道的PU检测概率和虚警概率的性能评估。
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引用次数: 0
NEURO FUZZY BASED MPPT IN TRANSFORMER LESS GRID USING CUK CONVERTER IN STEP UP MODE 基于神经模糊的无变压器电网中基于cuk变换器升压模式的MPPT
Pub Date : 2019-03-04 DOI: 10.23883/ijrter.conf.20190304.008.iz9ni
D. Betsi, R. Ramya, Parthasarathy
-This paper is aimed at the implementation of a Neuro-Fuzzy Based MPPT in Transformer less grid using CUK Converter in Step-Up Mode. A single diode model is preferred for photovoltaic array and simulation study is done by using MATLAB SIMULINK. Voltage and current are the inputs of ANFIS logic controller and the effective value of maximum power is the output. Thus in addition to supplying voltage by the inverter without Transformer for compensate the reactive power not exceeding its power rating. This results in utilization of PV system at night and at periods of low irradiation. Rules relating the input and output of ANFIS Logic Controller are written and simulation is performed. A DC –DC CUK is used for maintaining constant DC input to the inverter at various conditions of irradiation and temperature. Gating pulses to the inverter are generated by PI (Proportional integral) controller. Simulation model of a 1000W solar panel is developed and results are obtained with ANFIS logic controller for different irradiation and temperature conditions. Keywords—PV system, Maximum Power Point Tracking (MPPT), Irradiation, Transformer less Grid connected, Adaptive Neuro-Fuzzy Inference System(ANFIS) Controller, PI Controller, CUK
本文的目的是利用CUK变换器在升压模式下实现无变压器电网中基于神经模糊的MPPT。利用MATLAB SIMULINK对光伏阵列采用单二极管模型进行了仿真研究。电压和电流是ANFIS逻辑控制器的输入,最大功率的有效值是输出。这样逆变器除供电电压外,无需变压器进行补偿,使无功功率不超过其额定功率。这导致PV系统在夜间和低辐射时期的利用。编写了与ANFIS逻辑控制器输入输出相关的规则,并进行了仿真。DC -DC CUK用于在各种辐照和温度条件下保持逆变器的恒定直流输入。逆变器的门控脉冲由PI(比例积分)控制器产生。建立了1000W太阳能电池板的仿真模型,并利用ANFIS逻辑控制器对不同的辐照和温度条件进行了仿真。关键词:光伏系统,最大功率点跟踪(MPPT),辐照,无变压器并网,自适应神经模糊推理系统(ANFIS)控制器,PI控制器,CUK
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引用次数: 0
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INTERNATIONAL JOURNAL OF RECENT TRENDS IN ENGINEERING & RESEARCH
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