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The Use of Piezoelectric Materials for the Purpose of Creating Infrasound and Ultrasound Sources for Terrorist Acts 利用压电材料制造用于恐怖行动的次声和超声源
Pub Date : 2021-05-24 DOI: 10.2139/ssrn.3852014
Daniela Georgiana Golea, Lucian Ștefan Cozma
The technological development of the last decades and the so-called revolution in military affairs have not only produced beneficial consequences for human society, but have also opened the possibility of developing new technologies for the benefit of the terrorist organizations. These include infrasound and ultrasound technology, sources with continuous or pulsed operation, capable of acting in a very discreet regime, being very hard to detect, also capable of causing serious harm to human health and even the death. The fact that such devices have the ability to act completely silently amplifies their dangerousness. The present paper aims to present a series of relatively simple technologies for making such weapons which can work with acoustic waves in the non-audible regime. The field is interesting and the rapid technological evolution leaves this chapter open to further debates.
过去几十年的技术发展和所谓的军事革命不仅对人类社会产生了有益的后果,而且也为恐怖组织开辟了开发新技术的可能性。其中包括次声和超声波技术,这是连续或脉冲操作的辐射源,能够以非常谨慎的方式发挥作用,很难发现,也能够对人类健康造成严重损害,甚至造成死亡。事实上,这种装置具有完全无声行动的能力,这放大了它们的危险性。本文旨在介绍一系列相对简单的技术来制造这种武器,这种武器可以在不可听的情况下与声波一起工作。这个领域很有趣,技术的快速发展也为这一章节留下了进一步讨论的空间。
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引用次数: 0
A Fusion of Palm Print and Palm Vein Features for Person Identification Using Grey Coding Technique 基于灰色编码技术的掌纹与掌纹特征融合人脸识别
Pub Date : 2020-11-21 DOI: 10.2139/ssrn.3734787
Mr. Namdeo D. Kapale, Dr. Kyatanavar D. N.
An effective bimodal palm print and palm vein biometric person recognition method is suggested in this paper. Palm print is referred to as the external biometric line comprising main lines, wrinkles, and ridges on the palm surface and the palm vein is the structure of the lines below the palm surface. For individuals, these patterns are unique, stable and they provide enormous important information for person identification. The features of both modalities are extracted using a Sobel operator and grey code encoding techniques. The suggested framework is rigorously checked on the CASIA multispectral database and uses decision level and feature level fusion techniques to achieve the best FAR 0.0047 & FRR 0.050. The Proposed image fusion technique results in performance improvement than the individual biometric identification.
提出了一种有效的双峰掌纹和掌纹生物识别方法。掌纹是指手掌表面由主线、皱纹、脊线组成的外部生物识别线,手掌静脉是手掌表面以下线条的结构。对于个体来说,这些模式是独特的、稳定的,它们为个体识别提供了大量重要的信息。使用Sobel算子和灰色编码技术提取两种模态的特征。提出的框架在CASIA多光谱数据库上进行了严格的检验,并采用决策级和特征级融合技术实现了最佳FAR 0.0047 &FRR 0.050。所提出的图像融合技术比个体生物特征识别性能有所提高。
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引用次数: 0
Development of a Distributed Wireless Wi-Fi System for Monitoring the Technical Condition of Remote Objects 分布式无线Wi-Fi远程目标技术状态监测系统的研制
Pub Date : 2020-10-22 DOI: 10.15587/1729-4061.2020.212301
N. Kaliaskarov, V. Ivel, Y. Gerasimova, V. Yugay, S. Moldakhmetov
The research addresses the issues of collection and transmission of measurement data when monitoring various construction objects and bridge structures. The issues were resolved by developing a distributed system using Wi-Fi technologies. The results of measurements of the following parameters and data were obtained: the distance between cracks and joints, magnetometer readings and location and possible inclination of objects in three axes according to accelerometer and gyroscope data. By configuring the server, new channels are created for receiving data, which allow their subsequent processing and complete analysis of the study, for example, to solve the problem of predicting the technical conditions of construction and bridge objects. The completeness of the analysis of the study solves the problem of identifying and detecting possible errors and determining delays in the communication system. In general, the validity of all research results plays an important role in predicting the technical conditions of various objects and in finding solutions to problems arising from the technical difficulties of remote control. In this regard, the issue of the validity of the choice of Wi-Fi modules, which take into account the parameters of power consumption and availability of the boards of these modules for programming in order to obtain results of measurements in a long time has been posed and resolved. Setting power consumption parameters made it possible to increase the research time at remote sites, which in turn increases the durability and life of the control system. The simplicity of programming the module boards and support of various electronic sensors allow varying the scope and research objects, thereby expanding the geography of the subject area of research. Therefore, the developed distributed system is easily adapted to the necessary problem areas of research, the monitoring results of which can be used in many areas, such as agriculture, ecology, power, health care, meteorology and others
本研究解决了各种建筑物体和桥梁结构监测中测量数据的采集与传输问题。通过开发使用Wi-Fi技术的分布式系统,这些问题得到了解决。根据加速度计和陀螺仪的数据,得到了以下参数和数据的测量结果:裂纹与节理之间的距离、磁力计的读数以及物体在三轴上的位置和可能的倾角。通过配置服务器,为接收数据创建了新的通道,这些通道允许对数据进行后续处理和完整的研究分析,例如解决施工和桥梁对象的技术条件预测问题。本研究分析的完备性解决了通信系统中可能出现的错误的识别和检测以及延迟的确定问题。总的来说,所有研究结果的有效性对于预测各种对象的技术状况以及解决远程控制技术难点所产生的问题具有重要作用。为此,提出并解决了Wi-Fi模块选择的有效性问题,即考虑到功耗参数和这些模块的板的可用性,以便在很长一段时间内获得测量结果。设置功耗参数可以增加远程站点的研究时间,从而增加控制系统的耐用性和寿命。模块板编程的简单性和对各种电子传感器的支持允许改变范围和研究对象,从而扩大研究主题领域的地理范围。因此,开发的分布式系统很容易适应必要的问题研究领域,其监测结果可用于许多领域,如农业、生态、电力、卫生保健、气象等
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引用次数: 1
Recent Trends in Solar Cells 太阳能电池的最新趋势
Pub Date : 2020-07-07 DOI: 10.2139/ssrn.3660381
Payal Pawar, Kedar Gaikwad
As most of the fossils will exhaust shortly, the hunger to explore renewable resources is getting worse. Renewable energy is sources of clean, inexhaustible and also increasingly competitive energy. Solar Photovoltaic energy is one of the important sources as it contains less noise, maintenance, and pollution-free. PV technology is still undergoing rapid evolution to achieve high efficiencies and to reduce the cost. New materials, concepts, and approaches in solar cell development have become the center of research in this field. This paper introduces the review of various recent generation technologies of solar cells. This addressed technology study is based on performance characteristics, efficiency, and cost of the solar cell.
由于大多数化石很快就会耗尽,探索可再生资源的渴望越来越强烈。可再生能源是一种清洁、取之不尽、用之不竭的能源,也是一种日益具有竞争力的能源。太阳能光伏具有噪音小、维护方便、无污染等特点,是重要的能源之一。光伏技术仍在快速发展,以实现高效率和降低成本。太阳能电池发展中的新材料、新概念和新方法已成为该领域的研究中心。本文介绍了近年来各种太阳能电池发电技术的研究进展。本技术研究是基于太阳能电池的性能特点、效率和成本。
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引用次数: 1
A Systematic Study of Plant Diseases Analysis to Improve the Growth in Agriculture 植物病害分析系统研究促进农业生长
Pub Date : 2020-06-28 DOI: 10.2139/ssrn.3637292
Srinivas Bharadwaj Hullur, V. P
Plant diseases cause the most important losses in production, financial system, and quantity of agricultural products. Considering the fact that 70% of the Indian financial system is depending on agricultural yield, there's a need to control the loss incurred by the plant diseases. It is necessary to monitor the plants from its initial stage of their life-cycle to keep away from diseases. The conventional technique that is used for this supervision is a naked eye and that is more time-consuming, expensive. To overcome this problem, there is a need for an automated system which will help the farmers to identify the plant diseases without having any overheads. Many researchers have developed many systems and algorithms based totally on diverse strategies of Machine Learning and Deep Learning techniques. In this paper we review some of the most recent methods that have been used to identify the plant diseases and also describe the different methods of plant leaves disease detection that help the growth of agriculture to improve the lifestyle of the farmers.
植物病害是造成农产品生产、金融体系和数量损失的最主要原因。考虑到印度70%的金融体系依赖于农业产量,有必要控制植物病害造成的损失。有必要从植物生命周期的初始阶段对其进行监测,以防止病害的发生。传统的监督方法是肉眼观察,这更耗时,更昂贵。为了克服这个问题,需要一种自动化系统,它将帮助农民在没有任何管理费用的情况下识别植物病害。许多研究人员开发了许多基于机器学习和深度学习技术的不同策略的系统和算法。本文综述了近年来用于植物病害鉴定的一些最新方法,并描述了植物叶片病害检测的不同方法,这些方法有助于农业的发展,改善农民的生活方式。
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引用次数: 0
Analysis and Design of Employee Attendance Monitoring Using Face Recognition System for Archempress Fruit Corporation 皇后水果公司员工考勤人脸识别系统的分析与设计
Pub Date : 2020-06-27 DOI: 10.2139/ssrn.3636604
Stephen Kim Kenneth Espinosa, Marvin Paray, Dominic Tanquiamco, Carl Jandayan, Pamela grace denilla
One in each of the foremost valuable things in any business is the labor costs unit of measurement. Successfully dominant, this expense may spell the excellence between success and failure of any organization. Modern technology performs an economical and effective method of handling bound tasks. The rises of technologies totally different sections of industries and firms most have trendy technologies. Industries and firms are the foremost necessaries of the economy nowadays. In this research study, we interview a business firm the Archempress Company to conduct a research project. The purpose of the study is to help some predicaments to their operation because the said company are currently using manual system in different aspects of operation and processing. This study conducted to make the said establishment more productive and flexible. The result of the study, the researchers highly recommend to proposed facial recognition system to automate their log-in & log-out attendance and also their payroll system.
在任何企业中,最重要的东西之一就是衡量劳动力成本的单位。成功地占据主导地位,这种费用可能决定任何组织的成功与失败。现代技术提供了一种经济而有效的方法来处理有约束的任务。技术的兴起完全不同的行业和公司都有时髦的技术。工业和企业是当今经济的最重要的必需品。在本研究中,我们采访了一家商业公司Archempress Company进行研究项目。研究的目的是帮助他们的一些困境,因为该公司目前在操作和处理的不同方面使用人工系统。进行这项研究是为了使上述机构更具生产力和灵活性。研究结果表明,研究人员强烈建议使用面部识别系统来自动化他们的登录和注销考勤以及他们的工资系统。
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引用次数: 0
Studying Acoustic Emission by Fitting the Destruction Models of a Composite According to the or Criterion and Mises Criterion 用or准则和Mises准则拟合复合材料的破坏模型研究声发射
Pub Date : 2020-06-26 DOI: 10.15587/1729-4061.2020.204820
S. Filonenko, A. Stakhova
This paper reports the established patterns of change in the acoustic emission signals by approximating the models of the destruction of a composite material in the form of a bundle of fibers according to the OR criterion and Mises criterion. It has been shown that increasing the coefficient that characterizes the ratio of the size of the elements of the composite material leads to that the pattern of change in the equivalent stresses according to the OR criterion is approaching the pattern of change by Mises criterion. At a certain value of the coefficient, according to the OR criterion, the equivalent stresses are aligned with a minimal deviation from each other. However, this alignment is limited to a specific change period. We have established patterns of change in the number of elements, which remain, as well as the signals of acoustic emission according to the OR criterion with the regularity of their change approaching that based on the Mises criterion. It has been shown that at the best approximation of the equivalent stresses according to the criteria there is a good agreement of the patterns of change in the number of a composite's elements, remaining in time, and the parameters for the formed signals of acoustic emission with their minimal deviation. It has been determined that the deviations in the parameters of acoustic emission signals are due to the difference in the rate of change in the equivalent stresses in proportion to approaching the time when a composite material starts breaking according to the OR criterion and Mises criterion. It has been determined that with the increasing deformation rate of a composite material, the patterns of change in the equivalent stresses approaching those based on the OR criterion and Mises criterion, the number of the remaining elements in the composite over time, and the parameters of acoustic emission signals are maintained. However, these patterns are observed at smaller intervals of time. The results obtained could be used in the study of the destructive processes of composite materials, taking into consideration the influence of various factors.
本文根据OR准则和Mises准则,通过近似纤维束形式的复合材料的破坏模型,报道了已建立的声发射信号变化模式。结果表明,增大表征复合材料单元尺寸之比的系数,根据OR准则的等效应力变化规律接近于Mises准则的变化规律。在一定的系数值下,根据OR准则,等效应力以最小的偏差排列。然而,这种对齐仅限于特定的变更周期。我们根据OR准则建立了剩余元素数量的变化模式,以及声发射信号,其变化规律接近于基于米塞斯准则的变化规律。结果表明,在等效应力的最佳近似下,复合材料的元素数随时间的变化规律与形成的声发射信号的参数具有最小的偏差,是很一致的。根据OR准则和Mises准则,确定声发射信号参数的偏差是由于等效应力变化率与接近复合材料开始断裂时间成比例的差异。结果表明,随着复合材料变形速率的增大,复合材料等效应力的变化规律接近于基于OR准则和Mises准则的变化规律,复合材料中剩余元素的数量随时间的变化规律基本不变,声发射信号参数基本不变。然而,这些模式是在较小的时间间隔内观察到的。所得结果可用于综合考虑各种因素影响的复合材料破坏过程的研究。
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引用次数: 0
Development of a Wi-Fi Controlled Mobile Video Device on the Arduino NANO Basis 基于Arduino NANO的Wi-Fi控制移动视频设备的开发
Pub Date : 2020-06-26 DOI: 10.15587/1729-4061.2020.206558
O. Sergeyeva, V. Lusenko, T. Dubovick, Mykola Patalakha
The development of a Wi-Fi-controlled video machine using Arduino NANO is described. The connection diagram of Arduino NANO and additional modules is presented. The relevance of the topic under development is emphasized by the increasing demand for the use of remotely controlled video devices. A Wi-Fi-controlled video device (machine) was developed, which is powered by a battery that is connected to the charge controller module with microUSB. Possible battery life is 5-6 hours without recharging. In the process of developing a Wi-Fi-controlled video machine, a large amount of work was carried out, including adding the necessary libraries for the correct writing of programs and determining the necessary conditions for the functioning of the device. Program (sketch) for controlling the engines of the machine is also developed; the main components for creating the device are identified. For the mobile camera application to work, it is necessary to download the JoyLite application from the AppStore or PlayMarket; after which the smartphone “connects” to the Wi-Fi network and the SANNCE HD 720p camera. In the software part of the development of a Wi-Fi-controlled video machine using Arduino NANO in the Arduino IDE software environment, the program (sketch) was developed for the SANNCE HD 720p “JoyLite” mobile application. This program configures the signals from the stepper motors of the camera to asynchronous motors of the machine, as well as adjusting the speed of the wheels. During the tests of the device, it turned out that the Wi-Fi-controlled video machine has a sensitivity to speed impacts, namely, the speed should exceed 255 r/s. The developed Wi-Fi-controlled video machine can be used in various fields. For example, the device can be used in systems such as "Smart Home" or in security systems, or be implemented as a training project in the course of robotics.
介绍了一种基于Arduino NANO的wi - fi控制视频机的开发。给出了Arduino NANO与附加模块的连接图。对使用遥控视频设备的需求日益增加,强调了正在开发的专题的相关性。开发了一种wi - fi控制的视频设备(机器),该设备由电池供电,电池通过microrousb连接到充电控制器模块。可能的电池寿命是5-6小时不充电。在开发wi - fi控制视频机的过程中,进行了大量的工作,包括添加正确编写程序所需的库和确定设备功能的必要条件。并编制了控制机床发动机的程序(草图);确定了创建设备的主要组件。为了使手机摄像头应用程序工作,有必要从AppStore或PlayMarket下载JoyLite应用程序;之后,智能手机“连接”到Wi-Fi网络和SANNCE高清720p摄像头。在Arduino IDE软件环境下使用Arduino NANO开发wi - fi控制视频机的软件部分,针对SANNCE HD 720p“JoyLite”移动应用程序开发了程序(草图)。该程序将摄像机步进电机的信号配置到机器的异步电机,并调整车轮的速度。在对设备的测试中发现,wi - fi控制的视频机对速度的影响比较敏感,即速度应超过255 r/s。所研制的wi - fi控制视频机可应用于各个领域。例如,该设备可用于“智能家居”或安全系统等系统,或作为机器人课程的培训项目实施。
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引用次数: 3
Enhancing Segmentation Approaches from Oaam to Fuzzy K-C-Means 从Oaam到模糊k - c均值分割方法的改进
Pub Date : 2020-06-25 DOI: 10.36872/lepi/v51i2/301159
C. Ananth, Ruchin Jain
Live wire with Active Appearance model (AAM) strategy is called Oriented Active Appearance Model (OAAM). The Geodesic Graph-cut calculation creates much better division results than some other completely programmed strategies distinguished in writing in the expressions of exactness and period preparing. This strategy besides viably consolidates the Dynamic Appearance Model, Live Wire and Graph Cut tips to abuse their integral focal points. It comprises of a couple of fundamental parts: model creating, in-statement, and depiction. As to the in-statement (acknowledgment) part, a pseudo methodology is typically utilized and the real organs are portioned cut essentially by cut by means of the OAAM strategy. The reason with respect to in-statement is to give harsh item confinement in addition to shape imperatives for a last GC technique, which frequently will deliver refined outline. The proposed (Fuzzy K-C-Means) procedure offers extended viability and diminished accentuation when stood out together from various strategies. The estimating of picture is assessed by calculating the ability as much as number of units and the time which generally the image takes for making one accentuation. Some different systems were reviewed in addition to great conditions and burdens have been communicated in light of the fact that extraordinary to each. Words which have to do with photograph division are really portrayed close by with other gathering strategies.
具有活动外观模型(AAM)策略的带电线称为面向活动外观模型(OAAM)。测地线图切割法的除法效果比其他一些完全程序化的除法在准确性和周期准备方面的表现要好得多。这种策略除了巩固动态外观模型,Live Wire和Graph Cut技巧之外,还可以滥用其整体焦点。它由几个基本部分组成:模型创建、声明和描述。对于声明(确认)部分,通常使用伪方法,并通过OAAM策略对真实器官进行基本的分割。关于in-statement的原因是,除了最后一种GC技术的形状要求之外,还提供了严格的项目限制,这种技术通常会提供精确的轮廓。当从各种策略中脱颖而出时,所提出的(模糊K-C-Means)程序提供了扩展的可行性和减少的强调。图像的估计是通过计算单元的数量和通常图像所需要的时间来评估的。对一些不同的制度进行了审查,此外,还根据每个制度的特殊情况和负担进行了通报。与照片划分有关的词实际上是与其他收集策略密切相关的。
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引用次数: 0
Personalized Treatment through Biosensors and Machine Learning ML 通过生物传感器和机器学习进行个性化治疗
Pub Date : 2020-05-25 DOI: 10.2139/ssrn.3610445
Anne Thomas Homescu
Precision medicine and personalized treatment can be effectively achieved through a combination of machine learning ML techniques and data gathered through specialized biosensors. However, the biggest challenge appears to be need of better data – in terms of both quality and quantity – on which to apply appropriate ML techniques. While ML can uncover deeper dependencies between the data, it requires enough good data to capture these dependencies. No matter how good the ML algorithms are, they cannot find something which is not in the training set. Hence, better (in terms of both quality and quantity) datasets are required to train algorithms. This, in turn, means that improved biosensors are needed to deliver such comprehensive, specialized data. The first section of the report provides a comprehensive literature review of personalized medicine applications employing ML methods on sensor data, under categories of Mobile sensing and portable devices, Neuroimaging, Brain Machine Interface, Omics and electronic health records, and Biosensor systems. While the first section is focused on opportunities and successes described in the literature, the second section highlights the key challenges which need to be addressed in order to take full advantage of the benefits ML can offer in the areas of personalized medicine. They also underscore the need for biosensors which provide better quality and quantity of data on which ML may operate. The third section describes select “best practices” for ML applications: data quality management and validation, data visualization, and privacy preserving data analysis. Very effective interactive visualization can be delivered through a Shiny framework and R packages, and we present a representative interactive visualizer using real data. Lastly, the appendices provide additional information and references on data quality procedures, data visualization techniques, and topics in ML.
通过结合机器学习ML技术和通过专门的生物传感器收集的数据,可以有效地实现精准医疗和个性化治疗。然而,最大的挑战似乎是需要更好的数据——在质量和数量上——在这些数据上应用适当的机器学习技术。虽然ML可以揭示数据之间更深层次的依赖关系,但它需要足够好的数据来捕获这些依赖关系。无论机器学习算法有多好,它们都找不到不在训练集中的东西。因此,需要更好的(在质量和数量上)数据集来训练算法。反过来,这意味着需要改进的生物传感器来提供如此全面、专业的数据。报告的第一部分提供了在传感器数据上使用ML方法的个性化医疗应用的全面文献综述,分类为移动传感和便携式设备、神经成像、脑机接口、组学和电子健康记录以及生物传感器系统。虽然第一部分侧重于文献中描述的机会和成功,但第二部分强调了需要解决的关键挑战,以便充分利用ML在个性化医疗领域可以提供的好处。它们还强调了对生物传感器的需求,这些传感器可以为机器学习提供更好的质量和数量的数据。第三部分描述了ML应用程序的“最佳实践”:数据质量管理和验证、数据可视化以及保护隐私的数据分析。非常有效的交互式可视化可以通过Shiny框架和R包来实现,我们提供了一个使用真实数据的具有代表性的交互式可视化工具。最后,附录提供了关于数据质量过程、数据可视化技术和ML主题的额外信息和参考。
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引用次数: 2
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EngRN: Signal Processing (Topic)
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