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Journal articles on the topic 'Computer Peripheral Equipment'
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Gryz, Krzysztof, and Jolanta Karpowicz. "Stationary computer devices: identification and assessment of the electromagnetic field in the working space." Occupational Safety – Science and Practice 563, no. 8 (August 14, 2018): 21–23. http://dx.doi.org/10.5604/01.3001.0012.2226.
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This article discusses the electromagnetic field emitted by stationary computer devices (personal computers and servers): CRT and LCD screen monitors, system units and peripheral equipment such as wireless communication mice and keyboards, direct current suppliers (AC/DC), uninterruptible power supplies (UPS), and network and electrical supplying cables. Computer devices emit an electromagnetic field from 50 Hz to several GHz. Electromagnetic hazards in the working space near those computer devices do not require individual assessment of the compliance of the level of electromagnetic exposure with the limits provided with respect to the protection of workers against electromagnetic hazards, because the distance between the operator’s body and the equipment is at least 20 cm. This article does not discuss other exposure scenarios such as repairing devices or using portable devices.
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Prior, David, Philip Reeder, Michael Rofe, Ian Biscoe, and Samuel Murray. "Designing a system for Online Orchestra: Peripheral equipment." Journal of Music, Technology and Education 10, no. 2 (December 1, 2017): 197–212. http://dx.doi.org/10.1386/jmte.10.2-3.197_1.
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Ren, Yan Xi, Xiao Qiang Yang, Qing Xia Li, and Jun Da Chen. "Fault Diagnosis System of Engineering Equipment's Electrical System Using Dedicated Interface Adapter Unit." Key Engineering Materials 567 (July 2013): 155–60. http://dx.doi.org/10.4028/www.scientific.net/kem.567.155.
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The development of fault detection and diagnosis system is accomplished with the application of PXI interface technology, modular instrument and signal processing technology. The total technical scheme of host computer, portable test platform, signal adapter unit, test interface and cable together with peripheral components is introduced in the presented system. Consequently, the hardware includes master computer (fault test and diagnosis platform), PXI-bus data acquisition system, signal interface adapter, power supply system, interface unit, connection cable and peripheral dedicated test equipments. And the software is developed by C and LabWindows/CVI based on Win32 operating system. In addition, the modular and object-oriented programming are adopted in the software development. The software consists of three parts: the master program running on test and diagnosis platform, the client software module on signal adapter unit as well as the remote interface software module. It can implement fault detection of electrical system on replaceable circuit board and block of the hydraulic system or electrical system. So it can help equipment repairmen and operator perform quick repairs and maintenance to the electrical system for engineering equipment.
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Azriadi, Emon, and Aris Fiatno. "IMPLEMENTING DMG MODEL TO IMPROVE RELIABILITY OF PERSONAL COMPUTER AT COMPUTER LABORATORY FACILITY." Jurnal Teknik Industri Terintegrasi 1, no. 1 (April 17, 2018): 82–90. http://dx.doi.org/10.31004/jutin.v1i1.315.
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A typical maintenance organisation has responsibility in keeping the production facility running at the desired level performance. In order to ensure that condition, necessary decisions should be made. The Decision Making Grid (DMG) model is one of analysis technique that provides maintenance organisation in strategic and tactical level management to determine the appropriate maintenance policy for all individual machinery and equipment within the facility. In this project, the analysis identified the performance of the personel computer at laboratory facility by conducting availability measurement. The hardware, peripheral, and softwarewhich have breakdown records were analysed then by the DMG model to propose the appropriate maintenance policy for all individual personel computer within the computer laboratory facility. Implementing the DMG recommendations were proposed to follow the suggested priority order.
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Mach, Vaclav, Milan Adámek, Jan Valouch, and Karla Barčová. "Control and indicating equipment communicating via the peripheral component interconnect express bus." Bulletin of Electrical Engineering and Informatics 9, no. 2 (April 1, 2020): 729–38. http://dx.doi.org/10.11591/eei.v9i2.1753.
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Nowadays, the Intruder Alarm system is commonly used to protect the life, health and the possession of people in big companies. However, these systems have limited options for managing and remote control. This lack is very often criticized by big companies which want to use the Intruder Alarm System with other applications like Access and Attendance control. The aim of this article is to design a Control and Indicating Equipment which can be implemented into commercially made Personal Computer as expansion card. The designed card provides the main function of the Intruder Alarm system which can be further extended by other applications. The system consists of external communication like Universal Serial Bus, Ethernet and General Packet Radio Service interface. Each individual part of the system is driven by a single microcontroller ATmega328P which can handle communication and evaluation of the current state obtained by devices connected to it. The design can offer all alarm and non-alarm visualization of smart control like irrigation, lights control, audio system, etc. The whole design is driven by the proper standardization and the design consists of every schematic which comes with the explanation
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Thorning, L. "Introduction of new computing facilities at the Geological Survey of Greenland." Rapport Grønlands Geologiske Undersøgelse 140 (December 31, 1988): 7–9. http://dx.doi.org/10.34194/rapggu.v140.8023.
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From a cautious start in the use of computers in the early 1970s, the Geological Survey of Greenland has developed complex and varied uses of modern computer facilities for both scientific and administrative tasks. GGU's first computer installation, a noisy TTY connected to the Computing Centre of Copenhagen University by a 110 baud telephone modem, was a selfservice facility which was not easy to use. Over the years, first with use of a PDP-10 with just one Tektronix 4014 graphic terminal and later a succession of increasingly powerful PDP-11s with many terminals, GGU's in-house facilities just kept ahead of the ever increasing demand for computer services. At the same time a number of programs for special tasks were developed on external facilities, because they required larger computers or special facilities. In the 1980s the demands on the computer facilitiesrequiring many different types of programs, including word processing, had grown so large that GGU's in-house system could no longer handle them satisfactorily. A major reorganisation was required, and consequently activities were divided between personal computers (PCs; mainly administrative) and a new central computer (mainly scientific). This development took place in late 1986 with the purchase of 17 new personal computers and a new central computer with accessory peripheral equipment. This has allowed an increasing integration of computer methods into GGU's activities. A brief summary is given below.
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Liu, Bai Fen, and Ying Gao. "The Test Equipment Based on Single Chip Micro (SCM) of Volt-Ampere Characteristic of CT." Applied Mechanics and Materials 556-562 (May 2014): 1726–29. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.1726.
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Nowadays, various test equipment tend to be more intelligent, the test equipment of the volt-ampere characteristic of CT is so too. As the development of the electronics, VLSI(SCM) is manufactured. The purpose of our project is to scheme out a intelligent test system by the computer technique and the test technique. This equipment is mostly made of the SCM system and the peripheral equipment. We control the output of the digital transformer by SCM. The output voltage can make the TL494 create PWM wave. The wave is the control signal of the main circuit. The output wave of the main circuit is the sine wave, and the value of the output can be amended automatically. Compared with the traditional equipment, this equipment is smaller and use less energy, but its function is more powerful. It can be programmable. We can take it more expediently. So, this kind of equipment can be used widely in the future.
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Fathil, Shahridan Mohd, Muhamad Rasydan Abdul Ghani, Kung-Yen Chen, Pinhsin Lee, Jin-De Hou, and Jui-An Lin. "Physical Ergonomics in Peripheral Nerve Block." Applied Sciences 11, no. 20 (October 19, 2021): 9736. http://dx.doi.org/10.3390/app11209736.
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The understanding of ergonomics is a vital competency for all peripheral nerve block operators. The essence of physical ergonomics for peripheral nerve block procedures can be summarised into three significant components: brain, musculoskeletal and needling. The first component includes strategies to optimise visuospatial neuroprocessing using equipment configuration. The second component reflects the careful planning of posture and position to improve procedural technique and reduce physical fatigue. The final component focuses on strategies to achieve needle beam alignment for optimal needle visualisation.
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Raţiu, Sorin, Vasile Alexa, and Imre Kiss. "Educational application used to simulate the functionality of a Gasoline Injection System." Analecta Technica Szegedinensia 9, no. 1 (January 12, 2015): 12–17. http://dx.doi.org/10.14232/analecta.2015.1.12-17.
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This paper presents an educational application, with practical realization, regarding the functionality simulation of a gasoline injection system using a computer and a peripheral afferent, along with its control circuit. The application replaces the ECU (Engine Control Unit) and controls a demo injection rail, equipped with four gasoline injectors with different shapes of flow. The equipment provides the flow shape visualisation and injection parameters change according to the engine load conditions, which can be simulated by the electronic equipment through the virtual interface. The system allows the determination of the gasoline amount injected by the various types of fuel injectors, in a certain period of time and at different pressures of the fuel, depending on the load and the speed of the engine.
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Johnson, Chad R., Roger C. Barr, and Stephen M. Klein. "A Computer Model of Electrical Stimulation of Peripheral Nerves in Regional Anesthesia." Anesthesiology 106, no. 2 (February 1, 2007): 323–30. http://dx.doi.org/10.1097/00000542-200702000-00021.
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Background Nerve stimulation for regional anesthesia can be modeled mathematically. The authors present a mathematical framework to model the underlying electrophysiology, the development of software to implement that framework, and examples of simulation results. Methods The mathematical framework includes descriptions of the needle, the resulting potential field, and the active nerve fiber. The latter requires a model of the individual membrane ionic currents. The model geometry is defined by a three-dimensional coordinate system that allows the needle to be manipulated as it is clinically and tracked in relation to the nerve fiber. The skin plane is included as an electrical boundary to current flow. The mathematical framework was implemented in the Matlab (The MathWorks, Natick, MA) computing environment and organized around a graphical user interface. Simulations were performed using an insulated needle or an uninsulated needle inserted perpendicular to the skin with the nerve fiber at a depth of 2 cm. For each needle design, data were obtained with the needle as cathode or anode. Data are presented as current-distance maps that highlight combinations of current amplitude and tip-to-nerve distance that evoked a propagated response. Results With the needle tip positioned 2 mm proximal to the depth of the nerve, an insulated needle required a current greater than 0.457 mA for impulse propagation when attached to the cathode; when attached to the anode, the minimal current was 2.354 mA. In the same position, an uninsulated needle attached to the cathode required a current greater than 2.395 mA to generate a response. However, when an uninsulated needle was attached to the anode, currents up to 7 mA were inadequate to produce a propagated response. Of particular interest were combinations of current amplitude and needle position that activated the fiber but blocked impulse propagation for cathodal stimulation. Conclusions Mathematical modeling of nerve stimulation for regional anesthesia is possible and could be used to investigate new equipment or needle designs, test nerve localization protocols, enhance clinical and experimental data, and ultimately generate new hypotheses.
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Ino, Shuichi, Manabu Chikai, Emi Ozawa, Tadasuke Ohnishi, and Tetsumi Honda. "A Pilot Study of a Tactile Measurement System Using Lateral Skin Stretch on Foot Plantar Surface." Journal of Advanced Computational Intelligence and Intelligent Informatics 21, no. 1 (January 20, 2017): 74–78. http://dx.doi.org/10.20965/jaciii.2017.p0074.
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The purpose of this study is to develop smart equipment to quantify plantar tactile sensibility for early diagnosis and tracking of peripheral neuropathy caused by diabetes mellitus. In this paper, we present new testing equipment composed of a plantar tactile stimulation platform with a moving contactor to stretch the skin tangentially, a response switch for each tactile stimulus, a motor control box, and a personal computer for psychophysical data processing. This testing equipment offers more precise measurements and is easy to use compared to conventional testing tools such as von Frey monofilaments, pin-prick testing devices, and current perception threshold testers. Using our testing equipment, we showed that the plantar tactile threshold for the tangential stretching stimulus on the first metatarsal head of the feet ranges from approximately 10 to 60 μm for subjects without diabetic foot problems. Meanwhile, the plantar tactile threshold of some subjects suspected of having diminished protective sensation by the Semmens-Weinstein monofilament testing is approximately 100 μm or more. These preliminary results suggest that our testing equipment based on the plantar sensation elicited by lateral stretching of skin has the potential for quantitative diagnosis in subjects suspected of suffering from neuropathy, and for monitoring changes over time to sustain quality of life.
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Ke, Ziyi, Ziqiang Chen, Huanlei Wang, and Liang Yin. "A Visual Human-Computer Interaction System Based on Hybrid Visual Model." Security and Communication Networks 2022 (June 30, 2022): 1–13. http://dx.doi.org/10.1155/2022/9562104.
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The traditional human-computer interaction is mainly through the mouse, keyboard, remote control, and other peripheral equipment electromagnetic signal transmission. This paper aims to build a visual human-computer interaction system through a series of deep learning and machine vision models, so that people can achieve complete human-computer interaction only through the camera and screen. The established visual human-computer interaction system mainly includes the function modes of three basic peripherals in human-computer interaction: keyboard, mouse (X-Y position indicator), and remote control. The convex hull method was used to switch between these three modes. After issuing the mode command, Gaussian mixture was used to quickly identify the moving human body to narrow the scope of our image processing. Subsequently, finger detection in human body was realized based on the Faster-RCNN-ResNET50-FPN model structure, and realized the function of moving mouse and keyboard through the relationship between different fingers. At the same time, the recognition of human body posture was done by using MediaPipe BlazePose, and the action classification models were established through the Angle between body movements so as to realize the control function of remote control. In order to ensure the real-time performance of the interactive system, according to the characteristics of different data processing processes, CPU and GPU computing power resources are used to cross-process images to ensure the real-time performance. The recognition accuracy of the human-computer interaction system is above 0.9 for the key feature points of human body, and above 0.87 for the recognition accuracy of four kinds of command actions. It is hoped that vision-based human-computer interaction will become a widely used interaction mode in the future.
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Pfeiffer, Bock, Hohenberger, and Kröger. "The arteriomobil project for peripheral arterial disease." Vasa 37, no. 4 (November 1, 2008): 345–52. http://dx.doi.org/10.1024/0301-1526.37.4.345.
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Background: Peripheral Arterial Disease in Germany is underestimated with regard to incidence and the consequences. In 1997 the Federal Association of the Peripheral Arterial Disease Self Help Groups started the Arteriomobil Project to increase the awareness for venous and arterial diseases in the general population. We report peripheral arterial disease (PAD) prevalence rates and discuss the unique concept of this project. Patients and methods: The Arteriomobil is a mobile home modified to a simple investigation room with an examination couch, a Doppler equipment and a computer for data acquisition. From April 1997 to April 2007, a total of 14.785 volunteers aged 18 to 102 years (mean age ± SD: 64 ± 11 years, 63% females) were investigated. Patients were recruited as a result of their active visit to the Arteriomobil and their active participation in the investigation. In all participants the medical history was documented according to a standardized computer-assisted interview and a standardized Ankle Brachial Index (ABI) determined. Results: PAD prevalence in females (ABI < 0.9) increased from 2% in the 5th decade of life to 33% in 10th decade and in males from 4.8% to 41% accordingly. Age- and gender-adjusted odds ratios for PAD were highest in smoker: Odds ratio 2.85 (95% Confidence interval 2.5–3.2) and Diabetes mellitus 1.91 (95%CI 1.7–2.2). Hypertension and hypercholesterolemia had a lower impact. Family history of known PAD, CHD or CVD had no impact. Although 49.5% of all participants complained of "leg disorders during exercise" intermittent claudication turned out to be the most discriminating symptom for PAD 5.87 (95%IC 5.18–6.66). Previous myocardial infarction (MI) was the most frequently reported vascular co-morbidity in those with PAD (OR 2.23, 95%IC 1.9–2.7) followed by stroke (2.12, 1.7–2.7), angina pectoris (1.50, 1.3–1.8) and paresis (2.01, 1.6–2.6). The incidence of anti-platelet treatment was significantly higher in participants with coronary heart disease than in those with PAD or cerebrovascular disease. Conclusions: The Arteriomobil Project is the largest database regarding the prevalence of PAD in the German population. and the data underlines the high prevalence of PAD in Germany.
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Ide, Nicole, Bianca K. Frogner, Cynthia M. LeRouge, Patrick Vigil, and Matthew Thompson. "What’s on your keyboard? A systematic review of the contamination of peripheral computer devices in healthcare settings." BMJ Open 9, no. 3 (March 2019): e026437. http://dx.doi.org/10.1136/bmjopen-2018-026437.
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ObjectiveTo determine the extent and type of microbial contamination of computer peripheral devices used in healthcare settings, evaluate the effectiveness of interventions to reduce contamination of these devices and establish the risk of patient and healthcare worker infection from contaminated devices.DesignSystematic reviewMethodsWe searched four online databases: MEDLINE, CINAHL, Embase and Scopus for articles reporting primary data collection on contamination of computer-related equipment (including keyboards, mice, laptops and tablets) and/or studies demonstrating the effectiveness of a disinfection technique. Pooling of contamination rates was conducted where possible, and narrative synthesis was used to describe the rates of device contamination, types of bacterial and viral contamination, effectiveness of interventions and any associations between device contamination and human infections.ResultsOf the 4432 records identified, a total of 75 studies involving 2804 computer devices were included. Of these, 50 studies reported contamination of computer-related hardware, and 25 also measured the effects of a decontamination intervention. The overall proportion of contamination ranged from 24% to 100%. The most common microbial contaminants were skin commensals, but also included potential pathogens including methicillin-resistantStaphylococcus aureus,Clostridiumdifficile, vancomycin-resistantenterococci andEscherichia coli. Interventions demonstrating effective decontamination included wipes/pads using isopropyl alcohol, quaternary ammonium, chlorhexidine or dipotassium peroxodisulfate, ultraviolet light emitting devices, enhanced cleaning protocols and chlorine/bleach products. However, results were inconsistent, and there was insufficient data to demonstrate comparative effectiveness. We found little evidence on the link between device contamination and patient/healthcare worker colonisation or infection.ConclusionsComputer keyboards and peripheral devices are frequently contaminated; however, our findings do not allow us to draw firm conclusions about their relative impact on the transmission of pathogens or nosocomial infection. Additional studies measuring the incidence of healthcare-acquired infections from computer hardware, the relative risk they pose to healthcare and evidence for effective and practical cleaning methods are needed.
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Bergstrand, L., U. Erikson, I. Holme, J. Johansson, A. G. Olsson, J. Mølgaard, S. Nilsson, G. Stenport, and G. Walldius. "Reproducibility of Quantitative Arteriographic Assessment of Atherosclerosis in the Femoral Artery." Acta Radiologica 34, no. 6 (November 1993): 612–17. http://dx.doi.org/10.1177/028418519303400616.
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Results from computer-analysed angiograms in the Probucol Quantitative Regression Swedish Trial (PQRST) were analysed to determine the reproducibility of the method and any drift in the analysing system. The precision index (P(μ)) for 2 angiography series, made at 10 min intervals, of the femoral artery in 276 patients was 10.5 for lumen volume and 21.9 for roughness (edge irregularity). No difference in reproducibility was found between patients with and without symptoms of peripheral atherosclerosis or when looking at the reproducibility over years. A drift of 0.67% per year in the radiographic equipment (but not in the analysis system) was found, confirmed by use of phantoms. Computer-based analysis of femoral atherosclerosis is a reliable method for follow-up trials, giving high reproducibility even if the trial spans over several years and involves different centres. The use of phantoms is essential for checking the method over time.
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Schroeder, Bradford L., Kevin Leyva, Kimberly Stowers, Joanna E. Lewis, and Valerie K. Sims. "Investigating Usability, User Preferences, Ergonomics, and Player Performance in StarCraft II." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 60, no. 1 (September 2016): 1210–14. http://dx.doi.org/10.1177/1541931213601283.
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The present study investigated several factors hypothesized to affect player performance in a real-time strategy computer game, StarCraft II (SC2). User preferences for certain game settings (e.g., custom hotkey shortcuts) and peripheral equipment (e.g., gaming keyboards, laser mice) were surveyed along with usability perceptions and individual differences. In addition to these self-reports, participants uploaded replays of their perceived strongest SC2 games, offering a snapshot of players’ in-game behavioral data. Results indicated that perceived usability problems and higher neuroticism were linked to poorer performance, but multitasking tendencies and custom hotkeys were predictive of greater performance. Gaming keyboards were related to performance, although a performance benefit is inconclusive. Implications for individual differences, ergonomics, and usability are discussed.
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Sasaki, M., and K. Ogura. "A fully robotic assay for human hormone analysis." Clinical Chemistry 36, no. 9 (September 1, 1990): 1567–71. http://dx.doi.org/10.1093/clinchem/36.9.1567.
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Abstract To create a more convenient analytical system for the determination of hormones in human serum, we attempted to make a robotic system by combining robotic equipment and the DELFIA system (time-resolved fluoroimmunoassay; Pharmacia Co.). To combine the two systems, we constructed various peripheral instruments, created software for the computer, and introduced these to the robot at our laboratory. We developed this system to operate more exactly and smoothly than manual procedures during analytical movement steps such as taking samples, adding reagents, mixing samples in kit strips, and measuring the results of the fluoroimmunoassay. With this system the robot can measure in random sequence eight hormones--thyrotropin, triiodothyronine, thyroxin, prolactin, lutropin, follitropin, choriogonadotropin, and cortisol--according to physicians' orders placed through the computer. Consequently, this robotic system can operate fully automatically, from delivering the samples into the robotic system to printing out graph reports for physicians. The technologist merely puts the sample rack on the conveyor belt.
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Kim, Mijung, Jong Chul Han, Seung Hyup Hyun, Olivier Janssens, Sofie Van Hoecke, Changwon Kee, and Wesley De Neve. "Medinoid: Computer-Aided Diagnosis and Localization of Glaucoma Using Deep Learning †." Applied Sciences 9, no. 15 (July 29, 2019): 3064. http://dx.doi.org/10.3390/app9153064.
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Glaucoma is a leading eye disease, causing vision loss by gradually affecting peripheral vision if left untreated. Current diagnosis of glaucoma is performed by ophthalmologists, human experts who typically need to analyze different types of medical images generated by different types of medical equipment: fundus, Retinal Nerve Fiber Layer (RNFL), Optical Coherence Tomography (OCT) disc, OCT macula, perimetry, and/or perimetry deviation. Capturing and analyzing these medical images is labor intensive and time consuming. In this paper, we present a novel approach for glaucoma diagnosis and localization, only relying on fundus images that are analyzed by making use of state-of-the-art deep learning techniques. Specifically, our approach towards glaucoma diagnosis and localization leverages Convolutional Neural Networks (CNNs) and Gradient-weighted Class Activation Mapping (Grad-CAM), respectively. We built and evaluated different predictive models using a large set of fundus images, collected and labeled by ophthalmologists at Samsung Medical Center (SMC). Our experimental results demonstrate that our most effective predictive model is able to achieve a high diagnosis accuracy of 96%, as well as a high sensitivity of 96% and a high specificity of 100% for Dataset-Optic Disc (OD), a set of center-cropped fundus images highlighting the optic disc. Furthermore, we present Medinoid, a publicly-available prototype web application for computer-aided diagnosis and localization of glaucoma, integrating our most effective predictive model in its back-end.
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Lun, Roanna, and Wenbing Zhao. "A Survey of Applications and Human Motion Recognition with Microsoft Kinect." International Journal of Pattern Recognition and Artificial Intelligence 29, no. 05 (July 9, 2015): 1555008. http://dx.doi.org/10.1142/s0218001415550083.
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Microsoft Kinect, a low-cost motion sensing device, enables users to interact with computers or game consoles naturally through gestures and spoken commands without any other peripheral equipment. As such, it has commanded intense interests in research and development on the Kinect technology. In this paper, we present, a comprehensive survey on Kinect applications, and the latest research and development on motion recognition using data captured by the Kinect sensor. On the applications front, we review the applications of the Kinect technology in a variety of areas, including healthcare, education and performing arts, robotics, sign language recognition, retail services, workplace safety training, as well as 3D reconstructions. On the technology front, we provide an overview of the main features of both versions of the Kinect sensor together with the depth sensing technologies used, and review literatures on human motion recognition techniques used in Kinect applications. We provide a classification of motion recognition techniques to highlight the different approaches used in human motion recognition. Furthermore, we compile a list of publicly available Kinect datasets. These datasets are valuable resources for researchers to investigate better methods for human motion recognition and lower-level computer vision tasks such as segmentation, object detection and human pose estimation.
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Górecka, Joanna, and Andrzej Biedka. "Determination of Ocular Artifacts in the Clinical EEG Software by a Peripheral Device." Electronics 10, no. 2 (January 7, 2021): 108. http://dx.doi.org/10.3390/electronics10020108.
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The occurrence of physiological artifacts generated by eye movements in electrical brain activity (electroencephalography, EEG) is a well-known problem in clinical practice. In order to increase the accuracy of the detection of eye movements during EEG examination, additional electrooculogram channels (electrooculography, EOG) with a standard PC keyboard are used. The EOG technique is not always comfortable for patients. Another issue is that the use of EOG channels in the EEG examination leads to the prolongation of time required for patient preparation. To solve these problems, we developed a new peripheral device suitable for the indication of common ocular artifacts in EEG. The obtained differences between the recommended methods (i.e., EOG, PC keyboard) and our new device have been presented using RMSE (root mean square error). The presented equipment can be used either during EEG examination or after registration of EEG signals in order to indicate the ocular artifacts. Furthermore, this device is compatible with the EEG software used in clinical practice.
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Kameyama, Michitaka. "Special Issue on Computer Architecture for Robotics." Journal of Robotics and Mechatronics 2, no. 6 (December 20, 1990): 417. http://dx.doi.org/10.20965/jrm.1990.p0417.
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In the realization of intelligent robots, highly intelligent manipulation and movement techniques are required such as intelligent man-machine interfaces, intelligent information processing for path planning and problem solutions, practical robot vision, and high-speed sensor signal processing. Thus, very high-speed processing to cope with vast amounts of data as well as the development of various algorithms has become important subjects. To fulfill such requirements, the development of high-performance computer architecture using advanced microelectronics technology is required. For these purposes, the development of implementing computer systems’ for robots will be classified as follows: (a) Use of general-purpose computers As the performance of workstations and personal computers is increased year by year, software development is the major task without requiring hardware development except the interfaces with peripheral equipment. Since current high-level languages and software can be applied, the approach is excellent in case of system development, but the processing performance is limited. (b) Use of commercially available (V) LSI chips This is an approach to design a computer system by the combination of commercially available LSIs. Since the development of both hardware and software is involved in this system development, the development period tends to be longer than in (a). These chips include general-purpose microprocessors, memory chips, digital signal processors (DSPs) and multiply-adder LSIs. Though the kinds of available chips are limited to some degree, the approach can cope with a considerably high-performance specifications because a number of chips can be flexibly used. (c) Design, development and system configuration of VLSI chips This is an approach to develop new special-purpose VLSI chips using ASIC (Application Specific Integrated Circuit) technology, that is, semicustom or full-custom technology. If these attain practical use and are marketed, they will be widely used as high-performance VLSI chips of the level (b). Since a very high-performance specification must be satisfied, the study of very high performance VLSI computer architecture becomes very important. But this approach involving chip development requires a very long period in the design-development from the determination of processor specifications to the system configuration using the fabricated chips. For the above three approaches, the order from the viewpoint of ease of development will be (a), (b) and (c), while that from the viewpoint of performance will be (c), (b) and (a). Each approach is not exclusive but is complementary each other. For example, the development of new chips by (c) can also give new impact as the components of (a) and (b). Further, the common point of these approaches is that performance improvement by highly parallel architecture becomes important. This special edition introduces, from the above standpoint, the latest information on the present state and' future prospects of the computer techniques in Japan. We hope that this edition will contribute to the development of this field.
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Sierikov, Georgy, and Iryna Sierikova. "Synthesis of the loading system for the conduct of in-kind transmission tests of vehicles and special equipment." Bulletin of Kharkov National Automobile and Highway University, no. 98 (November 29, 2022): 86. http://dx.doi.org/10.30977/bul.2219-5548.2022.98.0.86.
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Abstract. Problem. The paper solves an important scientific and practical problem, which allows to improve the quality of testing units and aggregates of the transmission of vehicles and special equipment on test stands with a balancing load. Conducting experimental tests on specialized stands allows you to maintain high stability of the factors that are set and maintained, the accuracy of their regulation, and the possibility of in-depth observations of executive devices. The accuracy of measurement and registration of parameters of automated measurements is increased due to the use of microprocessor systems with a digital network structure of data transmission between the control module and peripheral units and measurement modules. The application of the proposed laboratory experimental equipment to the balancing load allows to determine and improve the competitive advantages of energy-efficient tractors with electric transmission. Methodology. The methods of theoretical basic electrical engineering have been developed in the production and calculation of circuits using circuits. Also classical methods of statistics of signals from ADC were used. Results. The technique of processing information from the current, voltage and temperature sensors using a mathematical apparatus without using harmonic analysis is presented. The hardware implementation of the proposed method allows the use of simplified computing tools. Originality. Complex analysis of the data obtained from the current, voltage and temperature sensors is carried out. During the analysis, the range of velocities with stable operation of the measurement system was determined. Practical value. As a result of the work, an important scientific and practical problem was solved, which allows to increase the energy efficiency of tractors. To maintain the maximum energy efficiency of the traction electric drive of the tractor in the modes of various loads, its control system must include means of displaying the current state of the energy parameters of the power plant. The electrical equipment must include an on-board computer, which helps the driver to make the optimal tasks of work, according to preliminary calculations, as well as display the information needed on the route, the state of the vehicle, means of communication. communication of the car with the external environment, with the navigation system, etc. The on-board computer provides information to the touch screen with programmable virtual controls, and communicates with the driver's mobile systems.
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Taymarov, M. A., R. V. Akhmetova, Yu V. Lavirko, and L. I. Kasimova. "Efficiency of the peripheral and combined gas-distribution in torches of coppers of the TGM-84." Power engineering: research, equipment, technology 22, no. 3 (September 8, 2020): 14–22. http://dx.doi.org/10.30724/1998-9903-2020-22-3-14-22.
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So far rather large number of torches for chamber combustion of gaseous fuel differing among themselves on the nature of gas-distribution for mixture of fuel with air is known. For domestic oil-gas torches of power coppers their unification as combustion of fuels is characteristic, that is heat of combustion of the burned fuel can change in quite wide limits. Moreover, directly in use on thermal power plant their reconstruction is made for reduction of length of a torch, achievement of uniform radiation of a torch, change of local values of temperatures of a torch or reduction of their maximum values. As a rule, the detailed researches received after reconstruction of these torches are not conducted. Foreign torches are designed and made on combustion of fuel of a concrete type with the set heat of combustion. At the same time the main role for increase in efficiency is assigned to computer regulation of a ratio of fuel and air, gas-distribution - central tubular. Except high cost, the difficulty of application of foreign torches for domestic power coppers is connected with adaptation of automatic equipment of these torches to the system of automation of domestic coppers. Therefore for domestic coppers one of the directions them modernization for the purpose of increase in efficiency is reconstruction of schemes of gas-distribution in the existing torches. In this article the efficiency of application of peripheral tubular gas-distribution in comparison with the combined peripheral tubular gas-distribution combined with conic central gas-distribution when using as the main tagentsialny peripheral twist of air is investigated. These schemes of gas-distribution are applied in coppers of TGM-84A of the Kazan TES-3 and the Nizhnekamsk TES-1 on which experiments on identification of efficiency of these types of gas-distribution for combustion of natural gas of the Urengoy field are made.
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Peng, Jin, and Xianbing Wang. "An Intelligent Control-Based Vacuum Circuit Breaker with Permanent Magnet and Dynamic Characteristic Analysis." Mobile Information Systems 2022 (April 25, 2022): 1–10. http://dx.doi.org/10.1155/2022/8086231.
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In the transmission and distribution of energy, circuit breaker plays a very important role. In order to fulfill the current market/user demands, they must be capable of promptly identifying the problem and isolating the problematic areas. According to the extinguishing medium used, circuit breakers are divided into the following categories: air blast, SF6, vacuum, and oil. Among others, permanent magnet (PM) based vacuum circuit breaker is also gaining popularity with each passing day and has become a crucial control and protection equipment in the modern power systems. This study proposes the pulse width modulation (PWM) intelligent control strategy for PM vacuum circuit breaker closing/opening capacitance, group charging, and movement process. For the practical implementation of this idea, dual CPUs are utilized for PM vacuum circuit breaker intelligent control components, by taking STM32F103RBT6 as the core and combining peripheral hardware circuit. PWM pulse output drives IGBT to fulfill the closing/opening capacitance group intelligent charging. On the other hand, PM circuit breaker closing/opening motion displacement signals and coil current feedback achieve closed-loop for PWM intelligent control. The experimental results show that the proposed intelligent control component and PWM intelligent control strategy effectively improve the PM circuit breaker intelligent charging and motion dynamic characteristics.
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Peng, Jin, and Xianbing Wang. "An Intelligent Control-Based Vacuum Circuit Breaker with Permanent Magnet and Dynamic Characteristic Analysis." Mobile Information Systems 2022 (April 25, 2022): 1–10. http://dx.doi.org/10.1155/2022/8086231.
Full textAbstract:
In the transmission and distribution of energy, circuit breaker plays a very important role. In order to fulfill the current market/user demands, they must be capable of promptly identifying the problem and isolating the problematic areas. According to the extinguishing medium used, circuit breakers are divided into the following categories: air blast, SF6, vacuum, and oil. Among others, permanent magnet (PM) based vacuum circuit breaker is also gaining popularity with each passing day and has become a crucial control and protection equipment in the modern power systems. This study proposes the pulse width modulation (PWM) intelligent control strategy for PM vacuum circuit breaker closing/opening capacitance, group charging, and movement process. For the practical implementation of this idea, dual CPUs are utilized for PM vacuum circuit breaker intelligent control components, by taking STM32F103RBT6 as the core and combining peripheral hardware circuit. PWM pulse output drives IGBT to fulfill the closing/opening capacitance group intelligent charging. On the other hand, PM circuit breaker closing/opening motion displacement signals and coil current feedback achieve closed-loop for PWM intelligent control. The experimental results show that the proposed intelligent control component and PWM intelligent control strategy effectively improve the PM circuit breaker intelligent charging and motion dynamic characteristics.
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Ryu, Dong-Suk, Yeung-Mo Yeon, and Seung-Hee Kim. "Multilink Internet-of-Things Sensor Communication Based on Bluetooth Low Energy Considering Scalability." Electronics 10, no. 19 (September 23, 2021): 2335. http://dx.doi.org/10.3390/electronics10192335.
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As the growth rate of the internet-of-things (IoT) sensor market is expected to exceed 30%, a technology that can easily collect and processing a large number of various types of sensor data is gradually required. However, conventional multilink IoT sensor communication based on Bluetooth low energy (BLE) enables only the processing of up to 19 peripheral nodes per central device. This study suggested an alternative to increasing the number of IoT sensor nodes while minimizing the addition of a central processor by expanding the number of peripheral nodes that can be processed per central device through a new group-switching algorithm based on Bluetooth low energy (BLE). Furthermore, this involves verifying the relevancy of application to the industry field. This device environment lowered the possibility of data errors and equipment troubles due to communication interference between central processors, which is a critical advantage when applying it to industry. The scalability and various benefits of a group-switching algorithm are expected to help accelerate various services via the application of BLE 5 wireless communication by innovatively improving the constraint of accessing up to 19 nodes per central device in the conventional multilink IoT sensor communication.
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KHETAGUROV, Valery, Evgeny KAMENETSKY, Mikhail GEGELASHVILI, and Azamat MARZOEV. "EQUIPMENT MODIFICATION FOR FINE GRINDING OF MINERAL RAW MATERIALS." Sustainable Development of Mountain Territories 13, no. 2 (June 30, 2021): 292–303. http://dx.doi.org/10.21177/1998-4502-2021-13-2-292-303.
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Introduction. The huge energy costs of fine and ultrafine grinding operations have led to numerous studies aimed at developing new devices and methods for producing powdered materials. The first way leads to an increase in specific productivity while maintaining energy consumption at approximately the same level. The second way allows not only to increase the specific productivity, but also to reduce the specific energy consumption, since with a decrease in the exposure time, the body is more easily deformed and destroyed. The grinders in which the intensification of the destruction process is carried out in the first way can include planetary and vibrating mills. The second method of intensification is used in jet and various types of centrifugal mills. It is determined that vertical centrifugal mills are the equipment of a new type that can effectively perform grinding operations at high technological indicators and low energy consumption. The purpose of the research. Development of measures for obtaining a finely dispersed product by destroying mineral raw materials in vertical centrifugal mills by mechanical means. Research methodology. The paper uses a comprehensive research method: analysis of the state of grinding equipment according to literary and patent sources; development of mathematical models of the movement of bulk material in the working space of a vertical centrifugal mill based on the Navie-Stokes equations; computer modeling of the movement of the crushed material using the OpenFOAM package for solving hydrodynamic equations; a solver program was created to perform calculations, implementing the SIMPLER algorithm and using the MRF model; laboratory experiments; granulometric method for the analysis of grinding products; fractional analysis of crushed material with a grain size of 0.08 mm using an X-ray analytical centrifuge ВrооkhаvеnBI-ХDС. The development of measures for the effective evacuation of the crushed product from the working space of a centrifugal mill was evaluated by comparative tests of mills using various design solutions. Research results and discussion 1. It is established that vertical centrifugal mills are the devices of a new type capable of effectively performing grinding operations at high technological indicators and low energy consumption. 2. A mathematical model of the movement of bulk material in the working space of a vertical centrifugal mill has been developed based on the Navier-Stokes equations, which allows determining the speed and direction of movement of material layers at any point in the working space, the energy costs for their movement, the influence of the height of the material column on the nature of its movement in the space above the rotor. 3. The directions of increasing the efficiency of grinding mineral raw materials in a vertical centrifugal mill are determined by reducing the number of radial ribs installed in the cavity of the mill rotor; making cutouts in the radial ribs of the rotor, in the area near the rotor hub; installing coaxial rings in the working space of the mill above the rotor. 4. A method of effective evacuation of the crushed product from the mill body by installing additional screening surfaces in the peripheral part of the working space of the mill has been developed. 5. For the first time, the distribution of the granulometric composition of fine and medium - dispersed crushed product obtained as a result of processing lump dolomite in a centrifugal mill was obtained. It was found that particles with a size class of -0.08 + 0.03 mm are absent in the output of the crushed product from the mill. Conclusions. A mass-produced vertical centrifugal mill will find its effective application at enterprises of the Russian Federation for the preparation of powdered materials and will allow to obtain a significant effect by reducing the price of the final product, simplicity of design and maintenance of equipment, as well as small occupied production areas.
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Pugnetti, Luigi, Michael Meehan, and Laura Mendozzi. "Psychophysiological Correlates of Virtual Reality: A Review." Presence: Teleoperators and Virtual Environments 10, no. 4 (August 2001): 384–400. http://dx.doi.org/10.1162/1054746011470244.
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The recording and measurement of central and peripheral nervous system responses can provide important information during the development and the application of virtual reality (VR). Although studies on electroencephalographic, evoked potentials, and peripheral psychophysiological changes in connection with VR exposure are still preliminary, they show that reliable data can be obtained even in immersive VR conditions. There is no firm evidence that neurophysiological equipment—sensors and cables—may increase subjects' discomfort and affect their ability to interact with the virtual environments, but additional study is needed to clarify this issue. Suggestions as to how to limit potential interferences are summarized here. Two main lines of research are emerging: one seeking psychophysiological correlates of reaction and adaptation to stimuli and task variables in an attempt to understand more about human-VR interaction, and the other looking for ways to use psychophysiological responses to automatically control aspects of the virtual environments or other external devices. The main results emerging from the first group of studies indicate that psychophysiological measures of brain activity—notably EEG and event-related responses—may be used to distingush between automatic and controlled modes of processing. Additionally, peripheral measures, notably skin-resistance levels, are proposed as objective correlates of presence and of the outcome of specific VR-based desensitization therapies. There is no clear-cut evidence that brain waves may index unwanted effects on the central nervous system of VR exposure, but this issue deserves further study. The results of the second line of research seem to indicate that VR-induced psychophysiological responses can be used to develop assistive devices for people with disabilities or to control hands-free interaction within any virtual environment (for example, in highly demanding conditions). A related and promising field of application is that of neurofeedback, wherein VR may play an important role in increasing the motivational/ attentional span of clients, and, ultimately, the effectiveness of treatment protocols. Given these premises, it is suggested that research on psychophysiological correlates of VR should be incremented along the lines already delineated and possibly include also groups of subjects at risk for adverse affects.
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Lord, Stephen R., Hylton B. Menz, and Anne Tiedemann. "A Physiological Profile Approach to Falls Risk Assessment and Prevention." Physical Therapy 83, no. 3 (March 1, 2003): 237–52. http://dx.doi.org/10.1093/ptj/83.3.237.
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Abstract The purpose of this perspective article is to describe the use of a physiological profile approach to falls risk assessment and prevention that has been developed by the Falls and Balance Research Group of the Prince of Wales Medical Research Institute, Sydney, Australia. The profile's use for people with a variety of factors that put them at risk for falls is discussed. The Physiological Profile Assessment (PPA) involves a series of simple tests of vision, peripheral sensation, muscle force, reaction time, and postural sway. The tests can be administered quickly, and all equipment needed is portable. The results can be used to differentiate people who are at risk for falls (“fallers”) from people who are not at risk for falls (“nonfallers”). A computer program using data from the PPA can be used to assess an individual's performance in relation to a normative database so that deficits can be targeted for intervention. The PPA provides valid and reliable measurements that can be used for assessing falls risk and evaluating the effectiveness of interventions and is suitable for use in a range of physical therapy and health care settings.
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Zeng, Changqing, Zhendong Mu, and Qingjun Wang. "Classifying Driving Fatigue by Using EEG Signals." Computational Intelligence and Neuroscience 2022 (March 24, 2022): 1–13. http://dx.doi.org/10.1155/2022/1885677.
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Fatigue driving is one of the main reasons for the occurrence of traffic accidents. Brain-computer interface, as a human-computer interaction method based on EEG signals, can communicate with the outside world and move freely through brain signals without relying on the peripheral neuromuscular system. In this paper, a simulation driving platform composed of driving simulation equipment and driving simulation software is used to simulate the real driving process. The EEG signals of the subjects are collected through simulated driving, and the EEG of five subjects is selected as the training sample, and the remaining one is the subject. As a test sample, perform feature extraction and classification experiments, select any set of normal signals and fatigue signals recorded in the driving fatigue experiment for data analysis, and then study the classification of driver fatigue levels. Experiments have proved that the PSO-H-ELM algorithm has only about 4% advantage compared with the average accuracy of the KNN algorithm and the SVM algorithm. The gap is not as big as expected, but as a new algorithm, it is applied to the detection of fatigue EEG. The two traditional algorithms are indeed more suitable. It shows that the driver fatigue level can be judged by detecting EEG, which will provide a basis for the development of on-board, real-time driving fatigue alarm devices. It will lay the foundation for traffic management departments to intervene in driving fatigue reasonably and provide a reliable basis for minimizing traffic accidents.
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Isaev, A., R. Khomenko, A. Nenasheva, A. Shevtsov, and A. Batueva. "BIOMECHANICAL, PHYSIOLOGICAL AND AGE-RELATED FEATURES OF PERSONIFICATION AND INDIVIDUALIZATION DURING QUICKNESS AND SPEED-STRENGTH QUALITIES ENHANCEMENT IN YOUNG WEIGHTLIFTERS." Human Sport Medicine 19, no. 3 (October 25, 2019): 28–35. http://dx.doi.org/10.14529/hsm190304.
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Aim. The article deals with studying biomechanical, physiological, and age-related features in young weightlifters during quickness and speed-strength qualities enhancement. Materials and methods. The study was conducted at the precompetitive stage of preparation. Weightlifters aged 14–15 and 16–17 years (n = 15) participated in the experiment. Body composition was studied with the Tanita BC-418AA computer analyzer. The spatial characteristics of spine segments were investigated with the help of the MBN-Scanner computer equipment. Postural studies were conducted with the stabilometric systems produced by MBN Russia. Blood flow spectral analysis was performed using impedance rheography (the Centaur diagnostic system). Results. The body composition of young weightlifters was varied in the following range: muscle mass – 52.4–53.9%, fat mass – 9.0–10.2%. BMI was equal 25.64 kg/m2. The data of the orthostatic test in young weightlifters revealed significant changes in HR, total spectrum power (TSP), and stroke volume regulation (SV) in the experimental group (p < 0.05). In the control group, HR changes were higher than in the experimental group. In 50% of athletes from the groups of sports performance enhancement, eukinetic blood flow was revealed, in 32% – hypokinetic, and in 18% – hypertonic. After a year of training, a consistent increase in stroke volume (SV) was registered, as well as a decrease in HR, peripheral vascular resistance (PVR), heart index, and arterial blood pressure. Conclusion. The control system allows revealing in time the problems connected with weightlifters’ preparation, offering rehabilitation measures, and transforming the training process itself (its orientation, volume, intensity) to optimize body functioning in young weightlifters.
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Lucas, Brendan, Aditya Mahamuni, Vinyas Kulal, Abhi Gupta, and Kalpana Deorukhkar. "Affordable Real-Time Heart Rate, ECG & SpO2 Monitoring System Using Internet of Things (IoT)." International Journal for Research in Applied Science and Engineering Technology 10, no. 11 (November 30, 2022): 1852–58. http://dx.doi.org/10.22214/ijraset.2022.47731.
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Abstract: The healthcare industry now has an incomparable platform thanks to the Internet of Things technology, making it possible to quickly and effectively deal with challenges concerning healthcare. There has been a steady rise in the number of deaths due to sudden cardiac arrest (SCA) cases in developing countries and a lack of widespread use of an AED in these countries. The purpose of this study is to create an affordable Automated External Defibrillator (AED) that can be connected to IoT and can overcome certain drawbacks of the current AEDs. In the first phase of implementation, we attempt to create a Heart Monitoring System that can read Beats Per Minute (BPM), Electrocardiogram (ECG), and Saturation of Peripheral Oxygen (SpO2) using off-the-shelf sensors and display the data on a smartphone app. These sensors are connected to a Raspberry Pi 3b+, a single-board computer (SBC), which controls the entire system. The implementation of the system is successful, transmitting heart vitals to a smartphone app in real time. Further, the limitations of the system and future improvements are also discussed. The study builds a Heart Monitoring System under $67 with a few drawbacks. Further studies with better equipment are required to make the system accessible and less error-prone.
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Yudachev, S. S., S. S. ,. Sitnikov, N. A. ,. Gordienko, and P. A. Monakhov. "Operation description and creating an analog VGA output on the debugging board when making programs for CNC machines." Glavnyj mekhanik (Chief Mechanic), no. 2 (January 18, 2022): 88–99. http://dx.doi.org/10.33920/pro-2-2202-01.
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The priority task of the development of mechanical engineering is complex mechanization and automation of technological processes of mechanical processing. This problem can be solved by the introduction of machine tools and machine complexes with numerical control. CNC equipment combines the flexibility of universal and high performance of special automatic equipment, which significantly changes the nature of production and makes it mobile, meeting the requirements for continuous improvement and updating of mechanical engineering products. However, such equipment is quite complex, and its acquisition is associated with large financial costs, therefore, the problem of efficient use of CNC machines is a priority for most mechanical engineering enterprises and is inextricably linked with the need to create various programs. The article presents a theoretical analysis of the VGA interface, as well as a practical implementation of this interface, written in the Verilog programming language, on the Terasic DE10-Lite debugging board, with the MAX10 10M50DAF484C7G programmable logic integrated circuit and other peripheral modules. The practical significance of the work is familiarizing with programmable logic integrated circuits of the Intel FPGA family, obtaining basic knowledge in working with the Quartus Lite computer-aided design system (CAD), and learning the basics of programming programmable logic integrated circuits in the Verilog language. In the course of the work, the algorithm for writing code in the Verilog programming language for implementing the VGA interface on the DE10-Lite debugging board was described in detail. The software and mathematical excerpts used in the work are publicly available on the Internet, which allows anyone to carry out similar work and make sure that the written codes and the obtained conclusions are correct. This work can be used not only for writing programs for machine tools, but also for teaching students in the field of developing electronic devices in terms of their algorithmization and for organizing laboratory work, as well as for creating and designing real devices both in production and within a higher educational institution, for example, for developing laboratory work using specialized CAD. Familiarization and study of this programming language are conducted within the walls of one of the leading engineering universities of the Russian Federation, the Bauman Moscow State Technical University.
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Ghaderzadeh, Mustafa, Azamossadat Hosseini, Farkhondeh Asadi, Hassan Abolghasemi, Davood Bashash, and Arash Roshanpoor. "Automated Detection Model in Classification of B-Lymphoblast Cells from Normal B-Lymphoid Precursors in Blood Smear Microscopic Images Based on the Majority Voting Technique." Scientific Programming 2022 (January 4, 2022): 1–8. http://dx.doi.org/10.1155/2022/4801671.
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Introduction. Acute lymphoblastic leukemia (ALL) is the most common type of leukemia, a deadly white blood cell disease that impacts the human bone marrow. ALL detection in its early stages has always been riddled with complexity and difficulty. Peripheral blood smear (PBS) examination, a common method applied at the outset of ALL diagnosis, is a time-consuming and tedious process that largely depends on the specialist’s experience. Materials and Methods. Herein, a fast, efficient, and comprehensive model based on deep learning (DL) was proposed by implementing eight well-known convolutional neural network (CNN) models for feature extraction on all images and classification of B-ALL lymphoblast and normal cells. After evaluating their performance, four best-performing CNN models were selected to compose an ensemble classifier by combining each classifier’s pretrained model capabilities. Results. Due to the close similarity of the nuclei of cancerous and normal cells, CNN models alone had low sensitivity and poor performance in diagnosing these two classes. The proposed model based on the majority voting technique was adopted to combine the CNN models. The resulting model achieved a sensitivity of 99.4, specificity of 96.7, AUC of 98.3, and accuracy of 98.5. Conclusion. In classifying cancerous blood cells from normal cells, the proposed method can achieve high accuracy without the operator’s intervention in cell feature determination. It can thus be recommended as an extraordinary tool for the analysis of blood samples in digital laboratory equipment to assist laboratory specialists.
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Манько, Володимир Миколайович, and Людмила Іванівна Хіценко. "THE USE OF MULTIMEDIA LINGUISTIC LABORATORIES IN FOREIGN LANGUAGE LEARNING (THE CASE STUDY OF «TRANSLATION» SPECIALTY)." Information Technologies and Learning Tools 74, no. 6 (December 30, 2019): 201–11. http://dx.doi.org/10.33407/itlt.v74i6.2592.
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The research is devoted to the experimental verification of the effectiveness of multimedia language laboratories in foreign language learning (on the example of the specialty «Translation»). The study represents the capabilities of multimedia language laboratories in the foreign language learning and the advantages and disadvantages of their use. The article discusses the concepts of “multimedia technologies” as digital delivery of content using more than one medium which influences several perception channels of information, and “multimedia linguistic laboratories” as computer classrooms equipped with E-Presenter, multimedia projector, interactive whiteboard and peripheral equipment. Multimedia presentations, electronic studies manuals and Internet access are used to provide the future interpreters with necessary knowledge for doing translation. Modern multifunctional computer software gives the future interpreters the opportunity to form the competence in listening. The use of Skype and Viber helps to develop communicative skills providing communication and cultural interaction with native speakers. MLL’s software and hardware complex provides teachers with a powerful toolkit that helps to create, edit and save tests, conduct tests and collect results, quickly assess and comment on the answers. The statistical calculations confirmed that the implementation of multimedia technology in the educational process, the correct and systematic use of MLL in the foreign language learning, can not only diversify learning process, but also help the future interpreters to achieve a high level of the foreign language competence. The use of MLL revealed a number of methodological advantages over traditional ways of teaching. The authors see the prospects for further research in the creation of appropriate pedagogical conditions for implementing information and communication technologies in the process of training future interpreters.
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Lewandowska, Anna, and Herman Cherniaiev. "R&D Cooperation and Investments concerning Sustainable Business Innovation: Empirical Evidence from Polish SMEs." Sustainability 14, no. 16 (August 10, 2022): 9851. http://dx.doi.org/10.3390/su14169851.
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The empirical literature provides strong evidence supporting the relation of various innovation activities, including business innovation. The literature, however, continues to be limited in the context of developing countries, especially considering different types of business innovations. The aim of the present research is to fill the gap in the literature concerning the impact of research and development (R&D) cooperation and various types of investments in innovation for the creation of sustainable business innovation in small- and medium-sized enterprises (SMEs). Particular emphasis in this study is placed on the differences in types of business innovations. The research is based on cross-sectional data (n = 406) collected by the CATI (Computer-Assisted Telephone Interview) method in a Polish peripheral region (Subcarpathian Voivodeship). To examine the relation between different innovation activities and the creation of business innovation, logistic regression was employed. The results show that the outputs of both R&D cooperation and investments are highly dependent on the innovation type. The outcomes suggest that R&D cooperation might be a driver of the implementation of development activities and organizational innovation, while the expenditures on machinery and equipment lead to a greater probability for the implementation of process innovation and development activities. We also found that expenditures on marketing activities and investments in the implementation of new solutions may have an impact on business innovation implementation.
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Lebedev, Viktor, and Elena Lebedeva. "Remote forms: needs and opportunities." Buhuchet v zdravoohranenii (Accounting in Healthcare), no. 4 (April 1, 2020): 53–62. http://dx.doi.org/10.33920/med-17-2004-07.
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The article deals with the issues of organization and legal support for the use of remote forms, including in connection with the improvement of telecommunications technologies in the event of an emergency or threat of the spread of diseases that pose a danger to others, increasing the availability of medical care using telemedicine capabilities. The analysis of practical situations related to usage and safety of technical equipment owned by health facilities, including information, computer and telecommunications equipment, computers and peripherals; reviewed labour legislation, which regulates liability for failing to ensure the safety of technical means in the process of using telemedicine technologies.
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Bonaiuto, Vincenzo, Paolo Boatto, Nunzio Lanotte, Cristian Romagnoli, and Giuseppe Annino. "A Multiprotocol Wireless Sensor Network for High Performance Sport Applications." Applied System Innovation 1, no. 4 (December 19, 2018): 52. http://dx.doi.org/10.3390/asi1040052.
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The use of a network of wearable sensors placed on the athlete or installed into sport equipment is able to offer, in a real sport environment rather than in the unspecific spaces of a laboratory, a valuable real-time feedback to the coach during practice. This is made possible today by the coordinate use of a wide range of kinematic, dynamic, and physiological sensors. Using sensors makes training more effective, improves performance assessment, and can help in preventing injuries. In this paper, a new wireless sensor network (WSN) system for elite sport applications is presented. The network is made up of a master node and up to eight peripheral nodes (slave nodes), each one containing one or more sensors. The number of nodes can be increased with second level slave nodes; the nature of sensors varies depending on the application. Communication between nodes is made via a high performance 2.4 GHz transceiver; the network has a real-life range in excess of 100 m. The system can therefore be used in applications where the distance between nodes is long, for instance, in such sports as kayaking, sailing, and rowing. Communication with user and data download are made via a Wi-Fi link. The user communication interface is a webpage and is therefore completely platform (computer, tablet, smartphone) and operating system (Windows, iOS, Android, etc.) independent. A subset of acquired data can be visualized in real time on multiple terminals, for instance, by athlete and coach. Data from kayaking, karting, and swimming applications are presented.
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Santoso, Gempur. "Stasiun Kerja Komputer Secara Ergonomis Untuk Kegiatan Belajar Di Kelas Gempur Santoso." WAKTU: Jurnal Teknik UNIPA 9, no. 2 (July 15, 2011): 59–62. http://dx.doi.org/10.36456/waktu.v9i2.922.
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Currently very rapid development of computers. In the world of education was not freefrom the use of computers for education and administration activities in the classroom learningprocess. Computers connected to the equipment of information technology (IT) the other tosimplify and speed up the store and get information. Stout incident if the station is notergonomically designed computer it will cause slowness, fatigue, even pain. In this paper willdiscuss the ergonomic computer workstations in the classroom for learning activities that studentsand teachers do not have an accident. Additionally, it will also describe the incidence of accidentsdue to ergonomic display that does not impact cause slowness, fatigue, even illness or accident.Analysis and discussion in this paper presented in a descriptive or commonly called the study ofliterature. Based on the discussion can be concluded that an important factor in addition to thedesign of the workstation-related anthropometry students and teachers, are also factors thatadequate lighting and no glare, radiation and glare on the monitor as much as possible avoidedwith anti-glare or use an LCD, the corresponding input devices, peripherals, and softwareperformance and hardware. Suggestion: structuring computer display in the classroom should beergonomic is designed to be comfortable and secure in teaching and learning activities.
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Ghaderzadeh, Mustafa, Farkhondeh Asadi, Azamossadat Hosseini, Davood Bashash, Hassan Abolghasemi, and Arash Roshanpour. "Machine Learning in Detection and Classification of Leukemia Using Smear Blood Images: A Systematic Review." Scientific Programming 2021 (June 25, 2021): 1–14. http://dx.doi.org/10.1155/2021/9933481.
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Introduction. The early detection and diagnosis of leukemia, i.e., the precise differentiation of malignant leukocytes with minimum costs in the early stages of the disease, is a major problem in the domain of disease diagnosis. Despite the high prevalence of leukemia, there is a shortage of flow cytometry equipment, and the methods available at laboratory diagnostic centers are time-consuming. Motivated by the capabilities of machine learning (machine learning (ML)) in disease diagnosis, the present systematic review was conducted to review the studies aiming to discover and classify leukemia by using machine learning. Methods. A systematic search in four databases (PubMed, Scopus, Web of Science, and ScienceDirect) and Google Scholar was performed via a search strategy using Machine Learning (ML), leukemia, peripheral blood smear (PBS) image, detection, diagnosis, and classification as the keywords. Initially, 116 articles were retrieved. After applying the inclusion and exclusion criteria, 16 articles remained as the population of the study. Results. This review study presents a comprehensive and systematic view of the status of all published ML-based leukemia detection and classification models that process PBS images. The average accuracy of the ML methods applied in PBS image analysis to detect leukemia was >97%, indicating that the use of ML could lead to extraordinary outcomes in leukemia detection from PBS images. Among all ML techniques, deep learning (DL) achieved higher precision and sensitivity in detecting different cases of leukemia, compared to its precedents. ML has many applications in analyzing different types of leukemia images, but the use of ML algorithms to detect acute lymphoblastic leukemia (ALL) has attracted the greatest attention in the fields of hematology and artificial intelligence. Conclusion. Using the ML method to process leukemia smear images can improve accuracy, reduce diagnosis time, and provide faster, cheaper, and safer diagnostic services. In addition to the current diagnostic methods, clinical and laboratory experts can also adopt ML methods in laboratory applications and tools.
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Forsiuk, А., О. Pylypenko, A. Golub, Ya Zasiadko, V. Voznyy, and R. Gryshchenko. "Advisability use of Arduino controllers in automation of refrigeration devices." Refrigeration Engineering and Technology 55, no. 1 (February 10, 2019): 54–59. http://dx.doi.org/10.15673/ret.v55i1.1354.
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The advantages and disadvantages of Arduino controllers in relation to refrigeration automation systems are considered. An example of using the Arduino controller for creating an automation and monitoring system for a non-standard laboratory refrigeration unit is presented. Arduino is a computing hardware platform for affordable design, the main components of which are the microcontroller board with input and output elements, as well as the Processing / Wiring programming environment in a programming language similar to C, C ++. Arduino can be used to create standalone interactive objects, connect to the software that is used on your computer. The main advantage of using Arduino-based controllers is the availability of information about the microcontroller card, the specification of the elements, the software. Information is freely accessible and can be used by developers in any field. Microcontroller boards have a special structure, due to which, if necessary, it can be expanded by adding new components to the device. Thus, the presented platform allows to improve or change the operation of the automation system of the refrigeration unit, depending on the requirements of the consumer of the cold. The presented variant of automation of refrigeration systems gives an opportunity to come up with a new approach to the design of refrigeration units. During the development of the automation system, a modular algorithm for controlling and protecting the refrigeration unit was created in all its variants, the necessary peripheral equipment and signal receivers were selected. It is shown that the value ratio - functionality of these devices significantly exceeds the similar indicators of the world's leading manufacturers of refrigeration automation systems.
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MA, FUYIN, JIU HUI WU, MENG HUANG, WEIQUAN ZHANG, WENZHONG HOU, and CHANGAN BAI. "FINITE ELEMENT DETERMINATION OF THE HEAD-RELATED TRANSFER FUNCTION." Journal of Mechanics in Medicine and Biology 15, no. 05 (October 2015): 1550066. http://dx.doi.org/10.1142/s0219519415500669.
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The auditory peripheral system, which takes care of collection and enlargement in hearing processing, is an important part of the overall auditory system. This system is the key of sound source identification and location, and an important basis for a variety of audio equipment design and sound quality evaluation. In order to better recognize the acoustic characteristics of the auditory peripheral system, and effectively guide the audio equipment design as well as the sound quality evaluation, this study presents a numerical model based on the finite element/infinite element method (FEM/IFEM) to compute the near-field head-related transfer function (HRTF) on a reversed head model. A spherical sound source is positioned at different locations in the horizontal, median and lateral planes. The HRTFs and sound field distributions are computed for a frequency range up to 6 kHz. The present model is qualitatively validated against experimental data from MIT database. The results confirm the potentiality of the proposed approach which can efficiently detect the diffraction region, diffraction angle and tails in the sound field.
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Daoden, Kanchana, Sureeporn Sringam, Supanat Nicrotha, and Thanawat Sornnen. "Development of mini smart multipurpose vehicle for organic rice harvesting." Indonesian Journal of Electrical Engineering and Computer Science 26, no. 1 (April 1, 2022): 152. http://dx.doi.org/10.11591/ijeecs.v26.i1.pp152-159.
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This <span lang="EN-US">research aimed to develop the mini smart multipurpose vehicle (MSMPv) innovative from the conventional agriculture tractor for three objectives. The novel automatic gear modified technique for the MSMPv is proposed, then an idea to enhance peripheral capability through a hitch system. The final purpose is to support the farmer's ability to follow organic agriculture regulations on the issue of contaminated tools and machinery, especially in the rules related to contamination of equipment or machines that cannot share with conventional agricultural production. The organic rice crop plot of Nong Bua Lamphu Province in Thailand has been set to the case study. Here, farmers faced problems; lack of labour, production under an organic system that does not permit chemicals, and limited harvesting. According to the existing technology, this research has developed a typical farm tractor used in the country by inventing a manual transmission engine to an automatic transmission and accessories such as remote control, GPS, camera, and sensors. Thus, the development of this organic rice harvesting prototype should be an approach that provides both the opportunity to raise the self-reliance concept and enhance the knowledge of the development of innovative tools for farmers simultaneously.</span>
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Klenovitskiy, P. M., and B. S. Iolchiev. "ANALYSIS OF RELATIONS BETWEEN CHARACTERISTICS OF ARGYROPHILIC ZONES IN POPULATIONS OF INTACT LYMPHOCYTES OF DOMESTIC AND WILD SHEEP (OVIS AMMON) HYBRIDS." Vestnik of Ulyanovsk state agricultural academy 212 (December 25, 2021): 195–200. http://dx.doi.org/10.18286/1816-4501-2021-4-195-200.
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The purpose of this study is to determine the relations between AgNOR characteristics, obtained by means of computer analysis, in populations of intact lymphocytes of hybrid sheep of different genotypes and to select parameters for functional assessment of nucleoli. The AgNOR state was studied in peripheral blood lymphocytes of hybrid sheep of three genotypes: purebred F1 Romanov sheep with argali (group 1), hybrids carrying 3/4 of Romanov sheep blood and 1/4 of argali blood (group 2), and hybrids with 7 / 8 blood of domestic sheep and 1/8 of argali blood (group 3). The number of argyrophilic zones (AgNOR), their total area (ΣSNOR), their average color density (DNOR), and average color density of the nucleus (DN) and its AgNOR-free area (DF) were taken into account. Parameters which characterize argyrophilic zones and the correlation coefficients between them were calculated in the samples of lymphocytes obtained from hybrids of different genotypes and from their generalized population. The study of the preparations was carried out on the equipment of the Altami company (Russia, S.-P.). Image processing and analysis were performed using the Image Scope 1.0 software (SMA, Russia, M.). The closest correlations exist between parameters of color density, which confirms an equal possibility of using them in assessing the state of argyrophilic zones. It was found that the correlation coefficients between different compared features have values from close to 0 to 1.0. The number of AgNORs in a cell, their total area and average density are characteristics that complement each other, since they are weakly correlated with each other. To assess the state of the nucleus -forming system, it is advisable to take into account mutually complementary features: the number of AgNORs, their total area, as well as the average optical densities of AgNOR (DNOR). The average nucleus density, closely correlated with DNOR values, can serve as an alternative to this parameter.
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Gordienko, N. A., P. A. Monakhov, and S. S. Sitnikov. "FPGA programming using Quartus CAD." Glavnyj mekhanik (Chief Mechanic), no. 2 (January 18, 2022): 100–110. http://dx.doi.org/10.33920/pro-2-2202-02.
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In any production — industrial, radio equipment, construction, or agricultural one, the design of various kinds of objects is carried out. Computer-aided design systems ensure the performance of functionally completed design tasks with the receipt of appropriate design solutions and design documents. Programs of this class solve the tasks of automating all stages of system design of varying degrees of complexity: from the production technology of a single part to the design of an entire production line. The article describes the FPGA programming algorithm. The practical significance of the work is the study of the basics of FPGA programming in the Verilog language and familiarity with the Quartus II compilation program, the main FPGA design environment by Intel FPGA, which is easily adaptable to the requirements of a specific project. The Quartus II package includes all the utilities needed to work with FPGA chips. The light version of CAD is free and is publicly available, which is very convenient for learning the basics. However, Quartus free version is often quite sufficient even for professional work. This paper will help beginners to get acquainted with the FPGA and its structure. The DE10-Lite Board with the MAX10 10M50DAF484C7G FPGA and other peripheral modules that allow doing quite complex projects is considered. Based on it, the article shows how to create an empty project for a specific FPGA and add new files to the project. A simple code is written in the Verilog language, using the basic concepts and commands of the language, to control the LEDs on the board when the corresponding buttons are pressed. It is demonstrated how to check the correctness of the written code, compile and download the firmware to the existing board through the built-in programmer. Familiarization and study of this programming language are conducted within the walls of one of the leading engineering universities of the Russian Federation, the Bauman Moscow State Technical University.
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Li, Jiaying, Zhaohua Deng, Richard David Evans, Shan Liu, and Hong Wu. "How doctors take initiatives in online healthcare communities." Industrial Management & Data Systems 120, no. 7 (June 30, 2020): 1401–20. http://dx.doi.org/10.1108/imds-12-2019-0684.
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PurposeIn China, healthcare services have historically been expensive and difficult to access, with resources being unfairly distributed, often being centralized in large hospitals in major cities. In rural regions, hospitals often suffer from limited supplies, including human capital and equipment. E-health technologies have received significant attention from governments and citizens, with online healthcare communities (OHCs) providing easier communication between patients and doctors. Although doctors play a pivotal role in the success of OHCs, they are often unsure how to attract patients, with limited research focusing on this. The purpose of this paper is to explore how doctors can take initiatives in OHCs, from the joint perspectives of individual effort (i.e. intrapersonal factor) and identity in medical teams (MTs) (i.e. interpersonal factor), based on attribution theory.Design/methodology/approachHierarchical linear regression was conducted on data from 3,170 doctors participating in 865 online MTs, to examine the effects of individual effort and identity in MTs on individual performance. Individual effort included central effort (log-in frequency to OHC) and peripheral effort (articles published on doctors' homepages). Identity in MTs was represented as the identity of team leader and multiple team membership (MTM).FindingsThis study found that the main variables – central and peripheral effort, and leader and MTM identity – all had significant and positive impacts on the service quantity (SQ) of both written and telephone consultations. Although positive effects could be experienced in most conditions that were congruent with the logic of identity theory, the interaction terms demonstrated complex influences. Specifically, leader identity did not moderate the effect of article effort in written consultation, while MTM identity could not moderate the relationship between frequency effort and SQ in telephone-consultation services. Further, the leader identity negatively moderated the relationship between article effort and SQ in telephone consultations. Thus, for doctors with the leader identity, the impact of article effort on SQ was weaker. In summary, both aspects were proved to play important roles in individual SQ.Practical implicationsThis study provides empirical findings through focusing on the SQ of both written and telephone consultations in OHCs, thereby enabling healthcare providers to take initiatives and ultimately improve the efficiency and provision of delivered healthcare services. It is worth mentioning that doctors possessing the identity of team leader should be cautious that the more articles published by them may not lead to envisaged telephone-consultation performance, according to the negative moderating effect of leader identity on the relationship between article effort and SQ during telephone consultations.Originality/valueThis study contributes to the OHC literature by investigating how doctors' efforts and identity in OHCs affect individual performance, based on attribution theory and identity theory. Further, we provide healthcare practitioners with an improved understanding of these dimensions to improve autonomy regarding service provision in OHCs.
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Tereikovska, Liudmyla. "METHOD OF NEURAL NETWORK ANALYSIS OF VOICE SIGNAL." Cybersecurity: Education, Science, Technique 3, no. 7 (2020): 31–42. http://dx.doi.org/10.28925/2663-4023.2020.7.3142.
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The article is devoted to increase of efficiency of the means of analysis of biometric characteristics of subjects, interacting with information-control systems of various purpose. It is shown that from the standpoint of the possibility of using as a sensor the reading of the biometric parameters of the standard peripheral equipment of the computer, the widespread use in the information-control systems of voice messages, their high informativeness, the complexity of falsification of biometric information, as well as the possibility of carrying out hidden monitoring, the prospects have analysis tools voice signal. The necessity of improvement of methodology of neural network analysis of voice signal for recognition of emotions and person is grounded. Possibility of increase of efficiency of neural network means of analysis due to adaptation of parameters of neural network model to the conditions of use is determined. The principles of determination of valid neural network models and the most effective type of neural network model used for voice signal analysis have been formed. A coding procedure for the input signal is developed, which allows to use in the neural network a compact representation of the most informative features of a voice signal. A procedure for encoding a neural network output signal has also been developed to increase the efficiency of its learning. The method of neural network analysis of the voice signal is developed, which due to the offered principles of adaptation and procedures of coding of input and output parameters, allows to introduce into neural means a neural network whose architecture is adapted to the expected conditions of use. The effectiveness of the proposed method has been proven experimentally. Experimental studies have shown that the use of the developed method allows to ensure the accuracy of recognition of emotions of the identified speaker, which is approximately 0.94, which corresponds to the best modern decisions in this field. It is suggested to correlate the ways of further research with the development of solutions that would allow to analyze the voice signal of arbitrary duration under the conditions of noise of different kind.
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Pano, Marijon. "Application of Energy Efficiency Techniques While Using ICT Equipment." European Journal of Economics and Business Studies 7, no. 1 (January 21, 2017): 63. http://dx.doi.org/10.26417/ejes.v7i1.p63-68.
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Information and Communication Technology (ICT) devices and services are becoming more and more widespread in all aspects of human life. Computers and home office equipment represent one of the fastest growing categories of home energy use. While ICT equipment has become more energy efficient in recent years, computers, peripherals, and data centers still use significant amounts of energy, especially if they are left on constantly. The information and technology ecosystem now represents around 10% of the world's electricity generation and it represents the largest area of potential energy savings, as well. Most of these devices now have power management features that allow them to enter standby or "sleep" mode during periods of inactivity but only a fraction of users, know about the potential energy savings features. The aim of this paper is to offer practical and actionable tips for saving energy with computers and home office equipment. I review and test the main opportunities, explain them in plain language, and provide practical tips for leading an initiative to increase ICT energy efficiency in order to cut energy consumption per unit in half – or more. This paper presents the survey conducted about ICT equipment energy use in four offices and in five residential buildings in Korça region, Albania. The users were advised to use some basic energy efficiency tips, and energy data were collected before and after the new practices. Experimental results show that the methods used for increasing efficiency were very effective and the electricity consumption was reduced to about 10% - 45% in offices and about 5% - 15% in residential buildings.
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Ingvaldsen, Sigrid Hegna, Erling Tronvik, Eiliv Brenner, Ingunn Winnberg, Alexander Olsen, Gøril Bruvik Gravdahl, and Anker Stubberud. "A Biofeedback App for Migraine: Development and Usability Study." JMIR Formative Research 5, no. 7 (July 28, 2021): e23229. http://dx.doi.org/10.2196/23229.
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Background Biofeedback is effective in treating migraines. It is believed to have a beneficial effect on autonomous nervous system activity and render individuals resilient to stressors that may trigger a migraine. However, widespread use of biofeedback is hampered by the need for a trained therapist and specialized equipment. Emerging digital health technology, including smartphones and wearables (mHealth), enables new ways of administering biofeedback. Currently, mHealth interventions for migraine appear feasible, but development processes and usability testing remain insufficient. Objective The objective of this study was to evaluate and improve the feasibility and usability of an mHealth biofeedback treatment app for adults with migraine. Methods In a prospective development and usability study, 18 adults with migraine completed a 4-week testing period of self-administered therapist-independent biofeedback treatment consisting of a smartphone app connected to wearable sensors (Cerebri, Nordic Brain Tech AS). The app included biofeedback training, instructions for self-delivery, and a headache diary. Two wearable sensors were used to measure surface electromyographic voltage at the trapezius muscle and peripheral skin temperature and heart rate at the right second fingertip. Participants were instructed to complete a daily headache diary entry and biofeedback session of 10 minutes duration. The testing period was preceded by a preusability expectation interview and succeeded by a postusability experience interview. In addition, an evaluation questionnaire was completed at weeks 2 and 4. Adherence was calculated as the proportion of 10-minute sessions completed within the first 28 days of treatment. Usability and feasibility were analyzed and summarized quantitatively and qualitatively. Results A total of 391 biofeedback sessions were completed with a median of 25 (IQR 17-28) per participant. The mean adherence rate was 0.76 (SD 0.26). The evaluation questionnaire revealed that functionality and design had the highest scores, whereas engagement and biofeedback were lower. Qualitative preexpectation analysis revealed that participants expected to become better familiar with physical signals and gain more understanding of their migraine attacks and noted that the app should be simple and understandable. Postusability analysis indicated that participants had an overall positive user experience with some suggestions for improvement regarding the design of the wearables and app content. The intervention was safe and tolerable. One case of prespecified adverse events was recorded in which a patient developed a skin rash from the sticky surface electromyography electrodes. Conclusions The app underwent a rigorous development process that indicated an overall positive user experience, good usability, and high adherence rate. This study highlights the value of usability testing in the development of mHealth apps.
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Sathish, K., Aritra Paul, Debapriya Roy, Ishmeet Kalra, and Simran Bajaj. "Brain Computer Interface for Communication and Control of Peripherals and Appliances." Journal of Computational and Theoretical Nanoscience 17, no. 4 (April 1, 2020): 1616–21. http://dx.doi.org/10.1166/jctn.2020.8411.
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The concept is designed to improve upon the recent developed system, utilizing auditory steady state response (ASSR) as a basis for the Brain Computer Interface (BCI) paradigm. It utilizes the classification of signals through a discrete wavelet transform (DWT) before the actual transmission to reduce overhead at the processing system. The electroencephalogram (EEG) obtained from the subject is through a p300 based EEG receivers. A compression algorithm is used to reduce the bandwidth usage and provide a quicker transmission of the large and continuous EEG. An Arduino board along with a proximity sensor is used to detect the presence and distance of the subject and consequently control playback of a single frequency audio signal, which as received by the user, is used for producing the EEG signals. A continuous focus of the user is required on the playback of the single frequency sound to produce a sizeable reading. At the receiving end, another Arduino board is installed with an SD card module, which contains the commands, responsible for the actual control of the devices. The concept can be utilized for various purposes from controlling IoT based systems to wheelchairs and hospital beds as well as bionic limbs, which however are limited due to the overall bulk of all the equipment currently required. The main aim of this paper is to propose an improvement in the transmission, reduction the latency of the signals and to provide a concept for utilization by the handicapped or physically impaired patients. Since the EEG is obtained through the inner ear of the subject, it completely eliminates any need for invasive surgery and provides a simplified solution. Developments have shown to be able to achieve over 95% of accuracy in the domain, currently limited by length of the EEG required in order to process the actual commands from the subject’s brain.