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Journal articles on the topic 'Frequency selection device'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Domingo-Roca, Roger, Benjamin Tiller, Joseph Jackson, and James Windmill. "Bio-inspired 3D-printed piezoelectric device for acoustic frequency selection." Sensors and Actuators A: Physical 271 (March 1, 2018): 1–8. https://doi.org/10.1016/j.sna.2017.12.056.

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Development of 3D-printed devices, sensors, and actuators has become increasingly popular in recent years due to low cost, rapid production, and device personalization. This personalization process allows the development of devices with unique physical properties and phenomena that enhance the desired properties of the 3D-printed part. Biomimetics is a technique used to develop engineered devices, as organisms present in nature can provide smart and simple solutions to complex problems across a wide range of applications. Locust ears have a simple tympanic membrane with varying thicknesses tha

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Liu, Xi Gao, Zhi Min Liu, Jin Tao Zhang, et al. "Design of Frequency Selection Circuit of Advanced Detector Receiving Device in Coal Mine Roadway." Applied Mechanics and Materials 740 (March 2015): 507–10. http://dx.doi.org/10.4028/www.scientific.net/amm.740.507.

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Coal mine roadway advanced detector, including the transmitting and receiving devices, is a kind of geophysical instrument used in coal mine roadway advanced detection based on the dynamic and directional electric field excitation method. The transmitting device emits dual frequency modulated square wave current into the excavation face and the receiving device receives potential difference of coal and rock medium generated by induced polarization, of which the frequency selection circuit is to filter the interference of the harmonics of the signal and other frequency components. The paper der

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Domingo-Roca, Roger, Benjamin Tiller, Joseph Curt Jackson, and James Frederick Charles Windmill. "Bio-inspired 3D-printed piezoelectric device for acoustic frequency selection." Sensors and Actuators A: Physical 271 (March 2018): 1–8. http://dx.doi.org/10.1016/j.sna.2017.12.056.

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Men, Yu Zhuo, Hai Bo Yu, Hua Wang, and Jin Gang Gao. "Research on Radio Frequency Identification Technology in Automated Press Line." Applied Mechanics and Materials 241-244 (December 2012): 176–79. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.176.

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Automated press line is a kind of very important device in the production of automobiles, and its production quality and efficiency have a direct influence on the production efficiency and quality of automobiles. Automated pressing is the effective measure and major way to increase the productivity and improve the working conditions. Some pressing workshops is taken as examples in this paper to research into the working requirements of radio frequency identification (RFID), the interference in the process of identification, the selection of RFID reader, the selection of label, device purchasin

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Kakorina, Olesya, Igor Kakorin, and Alexandra Panchenko. "Selection of Radio-Absorbing Coating According to the Specified Criteria." NBI Technologies, no. 1 (February 2023): 24–28. http://dx.doi.org/10.15688/nbit.jvolsu.2023.1.4.

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From noisy urban centers to remote mountain peaks, we are accompanied by electromagnetic signals. These information-carrying waves cause much of our modern world to move and function properly. But they are also destructive. The sheer number of signals creates a problem of radio interference. This problem is solved by radio frequency and electromagnetic shielding. RF shielding involves shielding a device from signals that are in the frequency range used for radio transmission. Shielding against electromagnetic interference involves shielding against higher frequencies, used for applications tha

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Woolley, Sandra I., Tim Collins, James Mitchell, and David Fredericks. "Investigation of wearable health tracker version updates." BMJ Health & Care Informatics 26, no. 1 (2019): e100083. http://dx.doi.org/10.1136/bmjhci-2019-100083.

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BackgroundWearable fitness trackers are increasingly used in healthcare applications; however, the frequent updating of these devices is at odds with traditional medical device practices.ObjectiveOur objective was to explore the nature and frequency of wearable tracker updates recorded in device changelogs, to reveal the chronology of updates and to estimate the intervals where algorithm updates could impact device validations.MethodUpdates for devices meeting selection criteria (that included their use in clinical trials) were independently labelled by four researchers according to simple fun

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Liu, Daqian, Guiqi Kang, Yuntao Shi, Yingying Wang, and Zhenwu Lei. "Mode Selection for Device to Device Communication in Dynamic Network: A Statistical and Deep Learning Method." Mathematics 13, no. 3 (2025): 343. https://doi.org/10.3390/math13030343.

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A major challenge in device to device (D2D) communications is determining the appropriate communication modes for each potential D2D pair. In dynamic networks, the continuous movement of devices increases the complexity of channel state modeling, which makes it difficult to predict the quality of network service and select appropriate switching thresholds, ultimately affecting the accuracy of D2D mode selection. This paper proposes a novel D2D mode selection method, which integrates deep learning with statistical learning and includes three modules: signal-to-interference-plus-noise-ratio (SIN

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Lesniewska, Elzbieta, and Daniel Roger. "Selection of the Winding Type of Solid-State Transformers in Terms of Transmitting the Greatest Possible Power in the Frequency Range from 500 Hz to 6000 Hz." Energies 16, no. 18 (2023): 6528. http://dx.doi.org/10.3390/en16186528.

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Solid-state transformer (SST) is an emerging technology that integrates with transformer power electronics converters and control. The most noticeable advantages of SST are the size and weight reduction compared with low-frequency transformers. Since this device is used in many devices such as smart grids, traction systems, systems with renewable energy sources (RESs) and electric vehicle charging devices, it is important to build a high-efficiency device at a low cost. The article evaluates a medium frequency transformer (SST) operating at a frequency of 500 Hz to 6000 Hz with coils wound wit

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Zulauf, Grayson, Zikang Tong, James D. Plummer, and Juan Manuel Rivas-Davila. "Active Power Device Selection in High- and Very-High-Frequency Power Converters." IEEE Transactions on Power Electronics 34, no. 7 (2019): 6818–33. http://dx.doi.org/10.1109/tpel.2018.2874420.

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Prof., K. Kalai Selvi. "Surya S M." International Journal of Trend in Scientific Research and Development 4, no. 3 (2020): 788–94. https://doi.org/10.5281/zenodo.3892643.

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Device to Device D2D communication is a wireless peer to peer service, that allows direct communication to discharge hub input by binding wireless broadcasting amongst devices, as a vital technology module for next generation cellular communication system. Mobile devices limited battery power is a barricade for harnessing the performance of cellular communication systems. High data rate Device to Device communication is requisite to boost the crescent traffic requirement of apparent applications. In this paper suggest a centralized relay selection and power allocation process to state a multi

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Guan, Zhimin, Peng Zhao, Xianbing Wang, and Gaofeng Wang. "Modeling Radio-Frequency Devices Based on Deep Learning Technique." Electronics 10, no. 14 (2021): 1710. http://dx.doi.org/10.3390/electronics10141710.

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An advanced method of modeling radio-frequency (RF) devices based on a deep learning technique is proposed for accurate prediction of S parameters. The S parameters of RF devices calculated by full-wave electromagnetic solvers along with the metallic geometry of the structure, permittivity and thickness of the dielectric layers of the RF devices are used partly as the training and partly as testing data for the deep learning structure. To implement the training procedure efficiently, a novel selection method of training data considering critical points is introduced. In order to rapidly and ac

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Raizman, Rose. "Fluorescence imaging guided dressing change frequency during negative pressure wound therapy: a case series." Journal of Wound Care 28, Sup9 (2019): S28—S37. http://dx.doi.org/10.12968/jowc.2019.28.sup9.s28.

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Objective: Knowledge of wound bioburden can guide selection of therapies, for example, the use of negative pressure wound therapy (NPWT) devices with instillation in a heavily contaminated wound. Wound and periwound bacteria can be visualised in real-time using a novel, non-contact, handheld fluorescence imaging device that emits a safe violet light. This device was used to monitor bacterial burden in patients undergoing NPWT. Methods: Diverse wounds undergoing NPWT were imaged for bacterial (red or cyan) fluorescence as part of routine wound assessments. Results: We assessed 11 wounds undergo

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Chiti, Francesco, Romano Fantacci, Benedetta Picano, and Laura Pierucci. "A Capacitated House Allocation Game for the Energy Efficient Relays Selection in 5G Multicast Context." Sensors 20, no. 18 (2020): 5347. http://dx.doi.org/10.3390/s20185347.

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The upcoming fifth generation (5G) wireless networks making use of higher-frequency spectrum bands suffer from serious propagation issues due to high path loss and beam directivity requirements. This promotes the device-to-device communications to boost the transmission reliability at the network edges, providing remarkable benefits in terms of the energy and spectrum efficiency, essential for a wide class of sensors networks and Internet-of-Things. More in general, applications where devices are usually constrained in computational and transmission range capabilities. In such a context, the s

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Djomadji, Eric Michel Deussom, Maniba Garga, Bienvenue Arsene Roger Fouba, and Thomas Bouetou Bouetou. "Genetic Algorithm for Mode Selection in Device-to-Device (D2D) Communication for 5G Cellular Networks." American Journal of Networks and Communications 13, no. 1 (2024): 30–43. http://dx.doi.org/10.11648/j.ajnc.20241301.13.

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The widespread use of smart devices and mobile applications is leading to a massive growth of wireless data traffic. With the rapidly growing of the customers’ data traffic demand, improving the system capacity and increasing the user throughput have become essential concerns for the future fifth-generation (5G) wireless communication network. In a conventional cellular system, devices are not allowed to directly communicate with each other in the licensed cellular spectrum and all communications take place through the base stations (BS) and core network. Device-to-Device (D2D) communication r

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Hong, Sungcheol, and Gerard Coté. "Development of a Tetherless Bioimpedance Device That Uses Morphologic Changes to Predict Blood Flow Restrictions Mimicking Peripheral Artery Disease Progression." Biosensors 14, no. 6 (2024): 286. http://dx.doi.org/10.3390/bios14060286.

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A tetherless multi-targeted bioimpedance device was designed, modeled, built, and tested for measuring arterial pulse and, using morphological analysis, its potential for monitoring blood flow restrictions that mimic Peripheral Artery Disease (PAD) was assessed across multiple peripheral arteries. Specifically, we first developed a small form factor, tetherless, bioimpedance device, based on high-frequency structure simulator (HFSS) simulations. After designing and building the device we then tested it in vivo on human subjects on multiple arteries and found that we did not need to modify the

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Kozin, Alexey, Anton Gerasimov, Maxim Bakaev, Anton Pashkov, and Olga Razumnikova. "Automating Stimulation Frequency Selection for SSVEP-Based Brain-Computer Interfaces." Algorithms 16, no. 11 (2023): 502. http://dx.doi.org/10.3390/a16110502.

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Brain–computer interfaces (BCIs) based on steady-state visually evoked potentials (SSVEPs) are inexpensive and do not require user training. However, the highly personalized reaction to visual stimulation is an obstacle to the wider application of this technique, as it can be ineffective, tiring, or even harmful at certain frequencies. In our experimental study, we proposed a new approach to the selection of optimal frequencies of photostimulation. By using a custom photostimulation device, we covered a frequency range from 5 to 25 Hz with 1 Hz increments, recording the subjects’ brainwave act

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Newaskar, Deepali, and B. P. Patil. "Rechargeable Active Implantable Medical Devices (AIMDs)." International Journal of Online and Biomedical Engineering (iJOE) 19, no. 13 (2023): 108–19. http://dx.doi.org/10.3991/ijoe.v19i13.41197.

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Active Implantable Medical Devices (AIMDs) act as lifesaving devices. They provide electrical signals to tissues as well as perform data-logging operations. To perform these operations, they need power. The battery is the only source for such devices, as they are placed invasively inside the human body. Once the battery drains out, the patient wearing the device has to undergo medical surgery for the second time, where there are many chances of infections, and it could be life-threatening too. If the AIMDs, e.g., pacemakers are designed using rechargeable batteries, then the devices can be rec

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Chulkov, Andrey S., Mikhail E. Chaplygin, and Marsel’ M. Shaykhov. "Justifying the Operation Parameters of a Robotic Cassette Loading Device of the Carousel Type for a Selection Seeder." Engineering technologies and systems 34, no. 4 (2024): 549–62. https://doi.org/10.15507/2658-4123.034.202404.549-562.

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Introduction. The development and implementation of automated and robotic machines and devices for performing works on selection and seed production of grain and other crops creates conditions for increasing productivity and reducing labor intensity of work and contributes to increasing the production volume of domestic crop seeds. For sowing crops at the 2nd stage of selection work, there are used cassette seeders, which have special loading devices for feeding cassettes with seeds divided into portions to autonomous seeding units, the number of which corresponds to the number of cells in the

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19

Zamani Kouhpanji, Mohammad Reza. "Demonstrating the effects of elastic support on power generation and storage capability of piezoelectric energy harvesting devices." Journal of Intelligent Material Systems and Structures 30, no. 2 (2018): 323–32. http://dx.doi.org/10.1177/1045389x18806398.

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This study represents effects of an elastic support on the power generation and storage capability of piezoelectric energy harvesting devices. The governing equations were derived and solved for a piezoelectric energy harvesting device made of elastic support, multilayer piezoelectric beam, and a proof mass at its free end. Furthermore, a Thevenin model for a rechargeable battery was considered for storage of the produced power of the piezoelectric energy harvesting device. Analyzing the time-domain and frequency-domain responses of the piezoelectric energy harvesting device on an elastic supp

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20

Laouali, Inoussa, Antonio Ruano, Maria da Graça Ruano, Saad Dosse Bennani, and Hakim El Fadili. "Non-Intrusive Load Monitoring of Household Devices Using a Hybrid Deep Learning Model through Convex Hull-Based Data Selection." Energies 15, no. 3 (2022): 1215. http://dx.doi.org/10.3390/en15031215.

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The availability of smart meters and IoT technology has opened new opportunities, ranging from monitoring electrical energy to extracting various types of information related to household occupancy, and with the frequency of usage of different appliances. Non-intrusive load monitoring (NILM) allows users to disaggregate the usage of each device in the house using the total aggregated power signals collected from a smart meter that is typically installed in the household. It enables the monitoring of domestic appliance use without the need to install individual sensors for each device, thus min

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Mech, Rafał, Przemysław Wiewiórski, and Karol Wachtarczyk. "Use of Magnetomechanical Effect for Energy Harvesting and Data Transfer." Sensors 22, no. 9 (2022): 3304. http://dx.doi.org/10.3390/s22093304.

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The presented paper describes a method where, with the use of a dedicated SMART Ultrasonic Resonant Power System (SURPS) developed by the authors, a power and data transfer between two devices can be performed at the same time. The proposed solution allows power to be supplied to the sensor, located in a hardly accessible place, with simultaneous data transfer in a half-duplex way (e.g., “question–response”). The power transmission mechanism is based on the excitation of a construction with a sinusoidal wave, with an actuator transforming this wave into useful, electrical power through a harve

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Budroweit, Jan, Mattis Paul Jaksch, and Maciej Sznajder. "Proton Induced Single Event Effect Characterization on a Highly Integrated RF-Transceiver." Electronics 8, no. 5 (2019): 519. http://dx.doi.org/10.3390/electronics8050519.

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Radio frequency (RF) systems in space applications are usually designed for a single task and its requirements. Flexibility is mostly limited to software-defined adaption of the signal processing in digital signal processors (DSP) or field-programmable gate arrays (FPGA). RF specifications, such as frequency band selection or RF filter bandwidth are thereby restricted to the specific application requirements. New radio frequency integrated circuit (RFIC) devices also allow the software-based reconfiguration of various RF specifications. A transfer of this RFIC technology to space systems would

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23

Paramonov, Alexandr, and Phuoc Nhan Hoang. "Method for Dynamic Subchannel Selection in Heterogeneous Internet of Things Environments." Telecom IT 13, no. 1 (2025): 1–13. https://doi.org/10.31854/2307-1303-2025-13-1-1-13.

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Purpose: The article addresses the task of dynamic subchannel selection in heterogeneous Internet of Things (IoT) networks, considering network parameter changes and the limited computational resources of devices. The subject of the study: Heterogeneous IoT networks that utilize various data transmission technologies. Methods used: The study employs a reinforcement learning method for dynamic subchannel selection based on the analysis of historical data and the current network state. A tug-of-war algorithm is also used for resource allocation among subchannels. Results: A method for dynamic su

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ZHANG Wenjie, ZHANG Xiaojiao, HU Shunan, et al. "Dynamically Tunable Multi-Frequency Modulator via Triple Plasmon-Induced Transparency in Graphene Metasurfaces." Acta Physica Sinica 74, no. 15 (2025): 0. https://doi.org/10.7498/aps.74.20250488.

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Plasmon-induced transparency (PIT) is a class of electromagnetically induced transparency phenomena that enhances the interaction between light and matter, thereby improving the performance of nano-optical devices. However, conventional PITs usually rely on near-field coupling between bright and dark modes. In order to break through the limitation of this mechanism, this study proposes a dual-polarized graphene hypersurface structure, which consists of four groups of symmetric L-shaped graphene surrounding cross-shaped hollow graphene, forming a triple PIT through the synergistic effect betwee

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Suhadolnik, Nejc, Jernej Rozman, Tilen Svete, Žiga Korošak, Maja Atanasijević-Kunc, and Anton Pleteršek. "Phase Detection and Modulation Improvement for Active Load Modulation during Continuous Transmission." Sensors 21, no. 18 (2021): 6155. http://dx.doi.org/10.3390/s21186155.

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The paper covers one of the communication technologies used in wireless sensor networks. We have presented improvements in existing radio frequency identification (RFID) systems to address the problem of the phase selection in active load modulation (ALM). The phase selection affects the interoperability of communication devices and has to be addressed in the design phase of a new tag. A novel transmission method is presented to make the phase selection irrelevant for device interoperability. A second solution is shown to improve the existing system synchronization, which allows operation with

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26

Akamatsu, Motoyuki, Sigeru Sato, and I. Scott MacKenzie. "Multimodal Mouse: A Mouse-Type Device with Tactile and Force Display." Presence: Teleoperators and Virtual Environments 3, no. 1 (1994): 73–80. http://dx.doi.org/10.1162/pres.1994.3.1.73.

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A mouse was modified to add tactile and force display. Tactile feedback, or display, was added via a solenoid driving a small pin protruding through a hole in the mouse button. Force feedback was added via an electromagnet and an iron mouse pad. Both enhancements were embedded in the mouse casing, increasing its weight from 103 to 148 g. In a target selection task experiment, the addition of tactile information feedback reduced target selection times slightly, compared to the no additional feedback condition. A more pronounced effect was observed on the clicking time—the time to selection once

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Dutta, Umesh, M. K. Soni, and Manisha Pattanaik. "Design & Optimization of Gate-All-Around Tunnel FET for Low Power Applications." International Journal of Engineering & Technology 7, no. 4 (2018): 2263. http://dx.doi.org/10.14419/ijet.v7i4.12352.

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This paper investigates the performance of tri material gate tunnel field effect transistor (TMGTFET) device designed in gate all around (GAA) configuration. The device performance is analyzed by varying various device related parameters like: drain doping, oxide thickness and radius of silicon core. Simulations are performed using technology computer-aided design (TCAD) tool at 60 nm gate length. Simulation results show that the performance of TMGTFET device can be optimized by proper selection of device parameters so as to achieve improvements in the ON current, OFF current, sub-threshold sw

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Raja Rao, G., and P. Devi. "Dog Repellent Signal Generator." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 04 (2025): 1–9. https://doi.org/10.55041/ijsrem44554.

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This project presents the design and development of a Dog Repellent Signal Generator, a compact and efficient electronic device that emits high-frequency ultrasonic sound waves to deter stray or aggressive dogs without causing them harm. The device operates on the principle that dogs can hear ultrasonic frequencies (typically above 20 kHz), which are inaudible to the human ear but uncomfortable for canines. By generating a controlled and safe ultrasonic signal, the system offers a humane alternative to physical deterrents. The core components include a frequency generator circuit, an amplifier

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Balovsyak, Serhiy, Vitaly Lacusta, and Khrystyna Odaiska. "Reading of Sensor Signals with Automatic Selection of Sampling Frequency." Security of Infocommunication Systems and Internet of Things, no. 1 (June 30, 2023): 01010. http://dx.doi.org/10.31861/sisiot2023.1.01010.

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The correct selection of sampling frequency when reading signals from sensors ensures high quality of digitized data and saves memory when storing such data. The complexity of automatic selection of the sampling frequency is explained by the fact that this frequency depends on the frequencies of the useful signal, which are not always known. Therefore, in the work the computer system for reading signals from temperature, humidity, and lighting sensors with automatic selection of the sampling frequency based on the Fourier spectrum analysis of the signals was developed. Signals from digital sen

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30

Lahlaci, M. E., M. Miloudi, and H. Miloudi. "Experimental electromagnetic compatibility of conducted electromagnetic interferences from an IGBT and a MOSFET in the power supply." Electrical Engineering & Electromechanics, no. 3 (April 28, 2024): 38–43. http://dx.doi.org/10.20998/2074-272x.2024.3.05.

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Introduction. Most electromagnetic compatibility studies carried out in the context of power switch research are generally valid for low frequencies. This frequency restriction appears to be too restrictive for a complete analysis of the electromagnetic interference conducted. The novelty of this work lies in the load-dependent an optimal selection of IGBTs and MOSFETs for least-disturbance power switching in the frequency range from 150 kHz to 30 MHz, based on an optimal experimental selection procedure and show the impact of load value on switch switching and noise generation. Purpose. Analy

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Yang, Dong, Baopeng Lu, and Huaiwei Lu. "High-Resistance Grounding Fault Detection and Line Selection in Resonant Grounding Distribution Network." Electronics 12, no. 19 (2023): 4066. http://dx.doi.org/10.3390/electronics12194066.

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The detection and selection of fault lines in resonant grounding distribution networks pose challenges due to the lack of sufficient state parameters and data. This paper proposes an approach to overcome these limitations by reconstructing the initial criterion for fault occurrence and fault line selection. Firstly, a combination of 15% of the traditional phase voltage and the sum of the zero-sequence voltage gradient is suggested as the initial criterion for fault occurrence. This improves the speed of the line selection device. Additionally, the transient process of high-resistance grounding

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Tsydypov, B. G., A. V. Bazarov, B. V. Basanov, B. Z. Garmaev, E. Yu Korovin, and E. B. Atutov. "Determination of the complex dielectric permeability of liquid at the radiation frequency 32 GHz." IOP Conference Series: Materials Science and Engineering 1198, no. 1 (2021): 012012. http://dx.doi.org/10.1088/1757-899x/1198/1/012012.

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Abstract Method and device for measuring the complex dielectric constant of liquids are described. The real part of the complex dielectric constant calculated from the conditions for the maximum and minimum of the measured interference dependence of the reflection coefficient on the layer depth. The imaginary part determined by selection to the maximum coincidence of the calculated and measured dependences of the reflection coefficient.

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Trushenko, N. V., B. B. Lavginova, N. E. Obukhova, et al. "The role of peak inspiratory flow in the selection of inhalation therapy in patients with chronic obstructive pulmonary disease." Meditsinskiy sovet = Medical Council, no. 20 (November 16, 2023): 84–90. http://dx.doi.org/10.21518/ms2023-388.

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Pharmacotherapy for chronic obstructive pulmonary disease (COPD) primarily relies on inhalation therapy. The choice of an appropriate inhalation device is of particular importance as it impacts the frequency of device use errors, patient adherence to treatment, and overall treatment effectiveness. Peak inspiratory flow (PIF) represents the maximum air flow rate generated by a patient during inhalation and is measured in liters per minute. Dry powder inhalers (DPIs) possess internal device resistance that patients must overcome to activate the device. Measuring PIF is an integral component of o

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Zhang, Na, and Chun Wu Liu. "Selection and Design of Excitation Signal in Test System." Journal of Physics: Conference Series 2428, no. 1 (2023): 012003. http://dx.doi.org/10.1088/1742-6596/2428/1/012003.

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Abstract Both the test system and testing technology are inseparable from the selection and construction of the excitation signal. This paper shows excitation signals including transient excitation, harmonic excitation, random signal excitation, etc, which are commonly used in the time domain, frequency domain, and correlation analysis of the stimulus-response test. Moreover, the selection and design method of excitation signals in the test system is introduced based on the principle of signal analysis and system identification, combined with research and engineering practice experience. The a

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Rustamov, Asad, Elshan Hashimov, Amil Ganjiyev, Vusal Rahimli, and Ruslan Hashimov. "SYSTEM TECHNICAL SOLUTION OF ELECTROMAGNETIC ADAPTATION." Advanced Information Systems 9, no. 1 (2025): 86–90. https://doi.org/10.20998/2522-9052.2025.1.10.

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In military radiolocation systems, electromagnetic compatibility includes the provision of joint operation of the elements that make up various military devices, the creation of joint working conditions for devices as elements of different systems, and inter-system activities. The object of the research is military radar equipment. The article describes the main schematic and technical solutions for electromagnetic compatibility in military radar equipment. In addition to the selection scheme, a method for synchronizing the operation of several radar stations that are very close to each other

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Gutierrez del Arroyo, Jose A., Brett J. Borghetti, and Michael A. Temple. "Considerations for Radio Frequency Fingerprinting across Multiple Frequency Channels." Sensors 22, no. 6 (2022): 2111. http://dx.doi.org/10.3390/s22062111.

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Radio Frequency Fingerprinting (RFF) is often proposed as an authentication mechanism for wireless device security, but application of existing techniques in multi-channel scenarios is limited because prior models were created and evaluated using bursts from a single frequency channel without considering the effects of multi-channel operation. Our research evaluated the multi-channel performance of four single-channel models with increasing complexity, to include a simple discriminant analysis model and three neural networks. Performance characterization using the multi-class Matthews Correlat

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Lepeshkin, Alexander, Alexander Medvedev, and Alexander Mihajlin. "Stabilization device for hydraulic drive of an electric generator on a vehicle." MATEC Web of Conferences 298 (2019): 00040. http://dx.doi.org/10.1051/matecconf/201929800040.

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The paper considers the design of a hydraulic drive of an additional electric generator installed on a car, which should provide stable electrical power to consumers with standard parameters (voltage 220 (380) V, frequency 50 Hz). To solve this problem a hydraulic regulator for a hydraulic drive connected to the motor shaft of the vehicle was proposed, it automatically stabilizes the rotational speed of the hydraulic motor shaft and the generator shaft connected to it. In this case a stable frequency current by the generator is obtained. The authors carried out selection of hydraulic machines

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Kurayev, A. A., and V. V. Matveyenka. "Helitron: Operation at High Frequency Orbital Harmonics and the Mode of Electron Phase Selection." Doklady BGUIR 21, no. 6 (2024): 37–44. http://dx.doi.org/10.35596/1729-7648-2023-21-6-37-44.

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The possibilities of improving the output characteristics of the helitron in two directions have been studied – increasing the efficiency in the phase selection mode of electrons and increasing the operating frequency through the use of a multi-lamella electrodynamic system (increasing the azimuthal index n of the operating mode). The results obtained during the experiments indicate the unique capabilities of the helitron at very high harmonics of the electron orbital frequency: up to n = 96, the device has an acceptable efficiency for low-power generators in the electron phase selection mode.

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Yang, Lin Lin, Xiu Ying Tang, Jie Shi, Huan Zou, and Xi Wang. "Design of Laboratory Type Ring Inflatable Flotation Machine." Advanced Materials Research 721 (July 2013): 652–55. http://dx.doi.org/10.4028/www.scientific.net/amr.721.652.

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This paper summarized the current advantages and disadvantages of flotation column, put forward a new type of flotation device - ring inflatable flotation machine, the overall structure of the device has been designed and patented. The study of the ring inflatable flotation machine has the advantages of low energy consumption and little abrasion, inflation rate, the probability of attachment and collision is high of mineral particles and air bubbles, selection and sweep the election time and frequency adjustment flexibility and large size range of separation.

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Wang, Ganggui, Celimuge Wu, Tsutomu Yoshinaga, et al. "Coexistence Analysis of D2D-Unlicensed and Wi-Fi Communications." Wireless Communications and Mobile Computing 2021 (March 23, 2021): 1–11. http://dx.doi.org/10.1155/2021/5523273.

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By enabling direct communications between nearby user equipment (UE), device-to-device (D2D) communication has become one of the key technologies in 5th generation (5G) mobile networks. D2D communication brings new communication opportunities for mobile devices, especially in a highly dense network. In this paper, D2D communication in the unlicensed spectrum, namely, D2D-Unlicensed (D2D-U), is discussed. The use of unlicensed frequency bands can ease the shortage of spectrum resources and improve network performance. However, the D2D-U in 5G has significant effects on the network performance o

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Hotra, Les, Oksana Boyko, Igor Helzhynskyy, Hryhorii Barylo, Marharyta Rozhdestvenska, and Halyna Lastivka. "FUNCTIONALLY INTEGRATED DEVICE FOR TEMPERATURE MEASUREMENT." Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska 14, no. 4 (2024): 32–37. https://doi.org/10.35784/iapgos.6720.

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The article presents a method of implementing a functionally integrated device for temperature measurement, which allows for controlled heating of the primary temperature transducer, measurement of the heating temperature as well as the temperature and differential temperature of the investigated and reference samples. The heating speed is regulated by the selection of the frequency and duration of the control impulses. To measure the temperature and temperature difference, it is proposed to use measuring currents of different polarity, which make it possible to simplify the device design. The

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Sunilkumar, K. N., Shivashankar, and Keshavamurthy. "Bio-signals compression using auto-encoder." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 1 (2021): 424–33. https://doi.org/10.11591/ijece.v11i1.pp424-433.

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Latest developments in wearable devices permits un-damageable and cheapest way for gathering of medical data such as bio-signals like ECG, Respiration, Blood pressure etc. Gathering and analysis of various biomarkers are considered to provide anticipatory healthcare through customized applications for medical purpose. Wearable devices will rely on size, resources and battery capacity; we need a novel algorithm to robustly control memory and the energy of the device. The rapid growth of the technology has led to numerous auto encoders that guarantee the results by extracting feature selection f

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Senulis, Audrius, Eleonora Guseinovienė, Viktoras Cirtautas, Valdas Jankūnas, and Lionė Urmonienė. "Control Efficiency Analysis of Linear Oscillating Mechatronic Device." Solid State Phenomena 147-149 (January 2009): 197–202. http://dx.doi.org/10.4028/www.scientific.net/ssp.147-149.197.

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This paper deals with the control efficiency analysis of the linear oscillating mechatronic device (linear oscillating synchronous motor–compressor). These mechatronic devices can be controlled by using thyristor control [1, 4], square-wave voltage [2, 3], ect. There is analyzed the case, when square-wave voltage pulses’ frequency is changed and so the piston stroke duration time is reduced. The control of piston stroke changes the energetic parameters of the mechatronic device. This type of controlling has one disadvantage – it needs a DC voltage source. The pulsating voltage control is based

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Liu, Zhenya, and Junchao Wang. "Computer-aided design of MEMS-FP based on reinforcement learning." Journal of Physics: Conference Series 2809, no. 1 (2024): 012015. http://dx.doi.org/10.1088/1742-6596/2809/1/012015.

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Abstract The Micro-Electro-Mechanical Systems Fabry-Perot (MEMS-FP) filter is a pivotal photosensitive component within optical instrumentation, serving an integral role across various optical applications, including frequency selection spectroscopy and spectral analysis. The advent of MEMS-FP technology has significantly contributed to advancements in the optical field, underscoring the necessity for precise pre-fabrication theoretical predictions of device properties through finite element analysis (FEA). Nonetheless, the complexity inherent in three-dimensional modelling of MEMS-FP structur

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Shi, Xiaojie, Tingkun Chen, Jinhua Zhang, Bo Su, Qian Cong, and Weijun Tian. "A Review of Bioinspired Vibration Control Technology." Applied Sciences 11, no. 22 (2021): 10584. http://dx.doi.org/10.3390/app112210584.

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Due to huge demand in engineering, vibration control technology and related studies have always been at the frontiers of research. Although traditional vibration control methods are stable and reliable, they have obvious shortcomings. Through evolution and natural selection, certain body-parts of animals in the natural world have been cleverly constructed and well designed. This provides a steady stream of inspiration for the design of vibration control equipment. The prime objective of this review is to highlight recent advances in the bionic design of vibration control devices. Current bioni

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Madhukar Haval, Abhijeet, and Akanksha Mishra. "Real-time LAQ Based Interference Minimization Model for Efficient Transmission in Radio Networks." E3S Web of Conferences 540 (2024): 13006. http://dx.doi.org/10.1051/e3sconf/202454013006.

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The problem of interference in radio communication is well studied. There exist number of approaches to handle the issue, which consider angle of radio device and frequency as the key in handling the interference problem. However, they suffer to achieve higher performance in QoS requirements. To handle this issue, an efficient LAQ (Latency Availability Quality) based interference minimization model (LAQ-IM) is presented in this paper. The method focused on improving the transmission performance by choosing a optimal radio device with reduced interference. The method considers the set of radio

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Yeromina, N. S., I. I. Kravchenko, M. N. Kurylov, et al. "Investigation of Powerful Electromagnetic Radiation Influence on Receiving Antenna Systems with Superconducting Protective Devices." Problems of the Regional Energetics, no. 3(55) (August 2022): 140–55. http://dx.doi.org/10.52254/1857-0070.2022.3-55.11.

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This work is devoted to the problem of the effect of a powerful ultra-short duration electromagnetic radiation on the superconducting protection device as a load of antenna-feeder circuit of radioelectronic systems. The above device is used in the monitoring systems of the land surface to the benefit of agriculture, geodesy, mapping, monitoring of land and ocean surfaces, and, also, the atmospheric layers, remote control systems in engineering and industry related branches. This goal was achieved by substantiation of the approach to the description of the arbitrary antenna response to the elec

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Krzastek, Sarah C., and Ryan Smith. "An update on the best approaches to prevent complications in penile prosthesis recipients." Therapeutic Advances in Urology 11 (January 2019): 175628721881807. http://dx.doi.org/10.1177/1756287218818076.

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Placement of inflatable penile prosthesis is a procedure frequently performed for medication-refractory erectile dysfunction. Device implantation is not without risks, and as the frequency of device implantation increases, so do associated complications. The aim of this work is to review the most frequent operative complications associated with implantation of inflatable penile prostheses, and to review the best approaches to prevent these most common complications. Complications can broadly be categorized as infectious, noninfectious tissue-related, device-related, or related to patient and p

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Builov, E. N., and S. A. Gorhkov. "The selection method of parameters of the device correlation filter processing of wideband linear-frequency-modulated signal." Doklady BGUIR, no. 5 (July 3, 2019): 101–8. http://dx.doi.org/10.35596/1729-7648-2019-123-5-101-108.

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Kotrikadze, Ketevan. "Solving The Problem of Synthesizing a Parallel Corrective Device." Works of Georgian Technical University, no. 2(536) (May 16, 2025): 232–39. https://doi.org/10.36073/1512-0996-2025-2-232-239.

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Local control systems are often used to control automated technological processes, the purpose of which is to duplicate certain sections of technological complexes, separate control contours, which increases the reliability of the system. The reliability of local control systems is ensured by the fact that they use unified devices, modules, blocks, etc. Local control systems can be classified according to various characteristics. One of the characteristics is the classification of local control systems according to the change in the controlled parameter over time. In this case, they are divide

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