Journal articles on the topic 'Devices'
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Wang, Ruimin, Ruixiang Li, Weiyu Dong, Zhiyong Zhang, and Liehui Jiang. "Fine-grained identification of camera devices based on inherent features." Mathematical Biosciences and Engineering 19, no. 4 (2022): 3767–86. http://dx.doi.org/10.3934/mbe.2022173.
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<abstract> <p>Camera devices are being deployed everywhere. Cities, enterprises, and more and more smart homes are using camera devices. Fine-grained identification of devices brings an in-depth understanding of the characteristics of these devices. Identifying the device type helps secure the device safe. But, existing device identification methods have difficulty in distinguishing fine-grained types of devices. To address this challenge, we propose a fine-grained identification method based on the camera deviceso inherent features. First, feature selection is based on the coverage and differences of the inherent features type. Second, the features are classified according to their representation. A design feature similarity calculation strategy (FSCS) for each type of feature is established. Then the feature weights are determined based on feature entropy. Finally, we present a device similarity model based on the FSCS and feature weights. And we use this model to identify the fine-grained type of a target device. We have evaluated our method on Dahua and Hikvision camera devices. The experimental results show that we can identify the deviceos fine-grained type when some inherent feature values are missing. Even when the inherent feature pmissing rateq is 50%, the average accuracy still exceeds 80%.</p> </abstract>
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Wibawa, I. Nyoman Gautama Satria. "Hierarchy and Characteristic of Storage Devices." International Research Journal of Management, IT & Social Sciences 2, no. 3 (March 1, 2015): 1. http://dx.doi.org/10.21744/irjmis.v2i3.57.
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This paper explores information about hierarchy and characteristic of storage devices. Lack of knowledge about storage device that used by everyone in the world is the main background of this paper. People can understand what the different of types, function, advantage and disadvantage of several storage devices. This paper examines several articles from online source, and writer’s experience in use of storage devices. In order to gain a complete understanding of Storage Device’s types, divisions, functions and relationships, it is necessary to conduct a study that examines all parts of storage device. It is important to gain knowledge about storage device because in this modern age, every information stored as data more efficient, less space, and can easily accessible. The needs of each individual will be different, will be better if we know about what we do, what we need, and what best storage device that can suite our activities.
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Zhou, Zhiyan. "Wearable Haptic Feedback System and Interfaces." Highlights in Science, Engineering and Technology 45 (April 18, 2023): 18–24. http://dx.doi.org/10.54097/hset.v45i.7296.
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Haptic devices could be used in a variety of fields. This study depicted the leading design and prototyping steps of some wearable haptic devices and interfaces in different areas. The study first introduced the handed-worn haptic device. Next, the study pointed out the vested worn haptic devices. Finally, it presented the devices by foot wearing. As well as a variety of wearable device application technology, the main design opens new possibilities for future devices. Different materials are used for various types of equipment and principles, which could improve the device's performance. Ideally, wearable haptic devices have a multifunctional impact that can ease the users' body burden and the putting on and taking off process. By analyzing the advantages and disadvantages of various wearable devices, a few points still need to be improved. With the enormous probe of empowerment of wearable technology and interfaces in industries, intelligent wearable haptic will be applied in more fields. And make human life more convenient and efficient.
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Lim, Jung Wook, Su Jae Heo, Min A. Park, and Jieun Kim. "Synaptic Transistors Exhibiting Gate-Pulse-Driven, Metal-Semiconductor Transition of Conduction." Materials 14, no. 24 (December 7, 2021): 7508. http://dx.doi.org/10.3390/ma14247508.
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Neuromorphic devices have been investigated extensively for technological breakthroughs that could eventually replace conventional semiconductor devices. In contrast to other neuromorphic devices, the device proposed in this paper utilizes deep trap interfaces between the channel layer and the charge-inducing dielectrics (CID). The device was fabricated using in-situ atomic layer deposition (ALD) for the sequential deposition of the CID and oxide semiconductors. Upon the application of a gate bias pulse, an abrupt change in conducting states was observed in the device from the semiconductor to the metal. Additionally, numerous intermediate states could be implemented based on the number of cycles. Furthermore, each state persisted for 10,000 s after the gate pulses were removed, demonstrating excellent synaptic properties of the long-term memory. Moreover, the variation of drain current with cycle number demonstrates the device’s excellent linearity and symmetry for excitatory and inhibitory behaviors when prepared on a glass substrate intended for transparent devices. The results, therefore, suggest that such unique synaptic devices with extremely stable and superior properties could replace conventional semiconducting devices in the future.
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Yang, Juechen, Jun Kong, and Chunying Zhao. "A Smartphone-Based Cursor Position System in Cross-Device Interaction Using Machine Learning Techniques." Sensors 21, no. 5 (February 28, 2021): 1665. http://dx.doi.org/10.3390/s21051665.
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The use of mobile devices, especially smartphones, has become popular in recent years. There is an increasing need for cross-device interaction techniques that seamlessly integrate mobile devices and large display devices together. This paper develops a novel cross-device cursor position system that maps a mobile device’s movement on a flat surface to a cursor’s movement on a large display. The system allows a user to directly manipulate objects on a large display device through a mobile device and supports seamless cross-device data sharing without physical distance restrictions. To achieve this, we utilize sound localization to initialize the mobile device position as the starting location of a cursor on the large screen. Then, the mobile device’s movement is detected through an accelerometer and is accordingly translated to the cursor’s movement on the large display using machine learning models. In total, 63 features and 10 classifiers were employed to construct the machine learning models for movement detection. The evaluation results have demonstrated that three classifiers, in particular, gradient boosting, linear discriminant analysis (LDA), and naïve Bayes, are suitable for detecting the movement of a mobile device.
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Peng, Zhang Zhu, and Bo Yin. "Research on Human Implantable Wireless Energy Transfer System." Applied Mechanics and Materials 624 (August 2014): 405–9. http://dx.doi.org/10.4028/www.scientific.net/amm.624.405.
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Advances in medical technology and promote the human implantable wireless energy transfer devices are widely used. Traditional human implantable wireless energy transfer device have some problems of low charging efficiency, blindly charging and data transmission difficult. On the basis of the conventional electromagnetic induction, in this paper, we proposed the use of magnetically coupled resonant way on human implantable device for charging, this method can greatly improve the efficiency of wireless charging. The system gets the CPU’s unique ID of human implantable devices to identifying the device. We can artificially control human implantable device’s charging device number, so as to solve the problems caused by the blind charge. Meanwhile, the system uses an electromagnetic carrier approach for data transmission, both to simplify the complexity of hardware devices and improve the communication efficiency of the device.
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KAERIYAMA, Toshiyuki. "Micromechanical Devices. Digital Micromirror Device." Journal of the Japan Society for Precision Engineering 65, no. 5 (1999): 669–72. http://dx.doi.org/10.2493/jjspe.65.669.
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Hamza, Muhammad, Syed Mashhad M. Geelani, Qamar Nawaz, Asif Kabir, and Isma Hamid. "Clustering of IoT Devices Using Device Profiling and Behavioral Analysis to Build Efficient Network Policies." April 2021 40, no. 2 (April 1, 2021): 335–45. http://dx.doi.org/10.22581/muet1982.2102.08.
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The Internet of Things (IoT) has emerged as a new paradigm, and billions of devices are connected with the internet. IoT is being penetrated in major domains of daily life like health care, agriculture, industry, smart homes and monitoring of the environment. The operator of such complex, huge and diverse heterogeneous networks may not even be fully aware of their IoT devices working, activity, behavior and resource utilization etc. The efficient management of IoT devices becomes a challenge for network managers to ensure smooth network operation. Network traffic analysis of IoT devices is a necessary and rudimentary tool to understand the behavior of devices. In this paper firstly, we identify insights of device network traffic, discuss the activity patterns of some IoT devices and present a visual description of the pattern of IoT devices. Secondly, after analyzing the device's behavior, we build and demonstrate a profile of each device based on its activity cycle and traffic patterns information. Thirdly, the K-Means clustering algorithm is used to make clusters of IoT devices using their profile information. The clustering algorithm groups similar devices in a single group. The obtained results clearly describe the patterns of devices which help the network managers to make appropriate network policies for efficient secure network management.
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Nikić, Marta, Aleksandar Opančar, Florian Hartmann, Ludovico Migliaccio, Marie Jakešová, Eric Daniel Głowacki, and Vedran Đerek. "Micropyramid structured photo capacitive interfaces." Nanotechnology 33, no. 24 (March 23, 2022): 245302. http://dx.doi.org/10.1088/1361-6528/ac5927.
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Abstract Optically driven electronic neuromodulation devices are a novel tool in basic research and offer new prospects in medical therapeutic applications. Optimal operation of such devices requires efficient light capture and charge generation, effective electrical communication across the device’s bioelectronic interface, conformal adhesion to the target tissue, and mechanical stability of the device during the lifetime of the implant—all of which can be tuned by spatial structuring of the device. We demonstrate a 3D structured opto-bioelectronic device—an organic electrolytic photocapacitor spatially designed by depositing the active device layers on an inverted micropyramid-shaped substrate. Ultrathin, transparent, and flexible micropyramid-shaped foil was fabricated by chemical vapour deposition of parylene C on silicon moulds containing arrays of inverted micropyramids, followed by a peel-off procedure. The capacitive current delivered by the devices showed a strong dependency on the underlying spatial structure. The device performance was evaluated by numerical modelling. We propose that the developed numerical model can be used as a basis for the design of future functional 3D design of opto-bioelectronic devices and electrodes.
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Xi, Zesheng, Gongxuan Zhang, Bo Zhang, and Tao Zhang. "Device Identity Recognition Based on an Adaptive Environment for Intrinsic Security Fingerprints." Electronics 13, no. 3 (February 5, 2024): 656. http://dx.doi.org/10.3390/electronics13030656.
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A device’s intrinsic security fingerprint, representing its physical characteristics, serves as a unique identifier for user devices and is highly regarded in the realms of device security and identity recognition. However, fluctuations in the environmental noise can introduce variations in the physical features of the device. To address this issue, this paper proposes an innovative method to enable the device’s intrinsic security fingerprint to adapt to environmental changes, aiming to improve the accuracy of the device’s intrinsic security fingerprint recognition in real-world physical environments. This paper initiates continuous data collection of device features in authentic noisy environments, recording the temporal changes in the device’s physical characteristics. The problem of unstable physical features is framed as a restricted statistical learning problem with a localized information structure. This paper employs an aggregated hypergraph neural network architecture to process the temporally changing physical features. This allows the system to acquire aggregated local state information from the interactive influences of adjacent sequential signals, forming an adaptive environment-enhanced device intrinsic security fingerprint recognition model. The proposed method enhances the accuracy and reliability of device intrinsic security fingerprint recognition in outdoor environments, thereby strengthening the overall security of terminal devices. Experimental results indicate that the method achieves a recognition accuracy of 98% in continuously changing environmental conditions, representing a crucial step in reinforcing the security of Internet of Things (IoT) devices when confronted with real-world challenges.
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Zhu, Zihan. "Analysis of short-circuit behavior and failure modes in SiC power devices." Applied and Computational Engineering 11, no. 1 (September 25, 2023): 236–41. http://dx.doi.org/10.54254/2755-2721/11/20230244.
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This essay presents the advantages of SiC power devices, while the short-circuit characteristics limit their development. The device short-circuit will seriously affect the efficiency of the use of the period. When a load short circuit occurs, both ends of the power MOSFET device will be directly connected to the high bus voltage; therefore, the short circuit process poses a great challenge to the device's ability to withstand high voltage, high current, and high junction temperature simultaneously. In this thesis, the short-circuit process of SiC power devices is investigated by designing a detection circuit, and two failure mechanisms of SiC MOSFET power devices are explained through the understanding of the failure mechanism.
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Zhu, Dan, Ying Gao, Jingling Chang, and Jian Kong. "Placebo Acupuncture Devices: Considerations for Acupuncture Research." Evidence-Based Complementary and Alternative Medicine 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/628907.
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Determining an appropriate control for use in acupuncture research remains one of the largest methodological challenges acupuncture researchers face. In general, acupuncture controls fall under one of two categories: (1) sham acupuncture, in which the skin is punctured with real acupuncture needles either fully at nonacupoint locations or shallowly at acupoint locations or both and (2) placebo acupuncture, which utilizes nonpenetrating acupuncture devices. In this study, we will focus on non-penetrating placebo acupuncture devices (blunted-needle and nonneedle devices) that are currently available in acupuncture research. We will describe each device and discuss each device’s validation and application in previous studies. In addition, we will outline the advantages and disadvantages of these devices and highlight how the differences among placebo devices can be used to isolate distinct components of acupuncture treatment and investigate their effects. We would like to emphasize that there is no single placebo device that can serve as the best control for all acupuncture studies; the choice of an acupuncture control should be determined by the specific aim of the study.
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Lola, João, Carlos Serrão, and João Casal. "Towards Transparent and Secure IoT: Improving the Security and Privacy through a User-Centric Rules-Based System." Electronics 12, no. 12 (June 8, 2023): 2589. http://dx.doi.org/10.3390/electronics12122589.
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In recent years, we have seen a growing wave in the integration of IoT (Internet of Things) technologies into society. This has created new opportunities, but at the same time given rise to several critical issues, creating new challenges that need to be addressed. One of the main challenges is the security and privacy of information that is processed by IoT devices in our daily lives. Users are, most of the time, unaware of IoT devices’ personal information collection and transmission activities that affect their security and privacy. In this work, we propose a solution that aims to increase the privacy and security of data in IoT devices, through a system that controls the IoT device’s communication on the network. This system is based on two basic and simple principles. First, the IoT device manufacturer declares their device’s data collection intentions. Second, the user declares their own preferences of what is permitted to the IoT device. The design of the system includes tools capable of analyzing packets sent by IoT devices and applying network traffic control rules. The objective is to allow the declaration and verification of communication intentions of IoT devices and control the communication of such devices to detect potential security and privacy violations. We have created a test-bed to validate the developed solution, based on virtual machines, and we concluded that our system has little impact on how the overall system performed.
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Bokka, Naveen, Venkatarao Selamneni, Vivek Adepu, Sandeep Jajjara, and Parikshit Sahatiya. "Water soluble flexible and wearable electronic devices: a review." Flexible and Printed Electronics 6, no. 4 (December 1, 2021): 043006. http://dx.doi.org/10.1088/2058-8585/ac3c35.
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Abstract Electronic devices that are biodegradable, water soluble and flexible and are fabricated using biodegradable materials are of great importance due to their potential application in biomedical implants, personal healthcare etc. Moreover, despite the swift growth of semiconductor technologies and considering a device’s shell life of two years, the subject of electronic waste (E-waste) disposal has become a major issue. Transient electronics is a rapidly expanding field that solves the issue of E-waste by destroying the device after usage. The device disintegration can be caused by a multitude of triggering events, an example is that the device totally dissolves and/or disintegrates when submerged in water. This technology enables us to utilize electronic devices for a set amount of time before quickly destroying them, lowering E-waste significantly. This review will highlight the recent advancement in water-soluble flexible electronic devices with more focus on functional materials (water insoluble), fabrication strategies and transiency understanding with special importance on areas where these devices exhibit potential application in flexible and wearable electronic devices which includes field effect transistors, photodetectors, memristors and sensors for personal healthcare monitoring.
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Rodriguez Medel, Abel, and Jose Marcos C. Brito. "Random-Access Accelerator (RAA): A Framework to Speed Up the Random-Access Procedure in 5G New Radio for IoT mMTC by Enabling Device-To-Device Communications." Sensors 20, no. 19 (September 25, 2020): 5485. http://dx.doi.org/10.3390/s20195485.
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Mobile networks have a great challenge by serving the expected billions of Internet of Things (IoT) devices in the upcoming years. Due to the limited simultaneous access in the mobile networks, the devices should compete between each other for resource allocation during a Random-Access procedure. This contention provokes a non-depreciable delay during the device’s registration because of the great number of collisions experienced. To overcome such a problem, a framework called Random-Access Accelerator (RAA) is proposed in this work, in order to speed up network access in massive Machine Type Communication (mMTC). RAA exploits Device-To-Device (D2D) communications, where devices with already assigned resources act like relays for the rest of devices trying to gain access in the network. The simulation results show an acceleration in the registration procedure of 99%, and a freed space of the allocated spectrum until 74% in comparison with the conventional Random-Access procedure. Besides, it preserves the same device’s energy consumption compared with legacy networks by using a custom version of Bluetooth as a wireless technology for D2D communications. The proposed framework can be taken into account for the standardization of mMTC in Fifth-Generation-New Radio (5G NR).
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Everhart, Alexander O., Soumya Sen, Ariel D. Stern, Yi Zhu, and Pinar Karaca-Mandic. "Association Between Regulatory Submission Characteristics and Recalls of Medical Devices Receiving 510(k) Clearance." JAMA 329, no. 2 (January 10, 2023): 144. http://dx.doi.org/10.1001/jama.2022.22974.
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ImportanceMost regulated medical devices enter the US market via the 510(k) regulatory submission pathway, wherein manufacturers demonstrate that applicant devices are “substantially equivalent” to 1 or more “predicate” devices (legally marketed medical devices with similar intended use). Most recalled medical devices are 510(k) devices.ObjectiveTo examine the association between characteristics of predicate medical devices and recall probability for 510(k) devices.Design, Setting, and ParticipantsIn this exploratory cross-sectional analysis of medical devices cleared by the US Food and Drug Administration (FDA) between 2003 and 2018 via the 510(k) regulatory submission pathway, linear probability models were used to examine associations between a 510(k) device’s recall status and characteristics of its predicate medical devices. Public documents for the 510(k) medical devices were collected using FDA databases. A text extraction algorithm was applied to identify predicate medical devices cited in 510(k) regulatory submissions. Algorithm-derived metadata were combined with 2003-2020 FDA recall data.ExposuresCitation of predicate medical devices with certain characteristics in 510(k) regulatory submissions, including the total number of predicate medical devices cited by the applicant device, the age of the predicate medical devices, the lack of similarity of the predicate medical devices to the applicant device, and the recall status of the predicate medical devices.Main Outcomes and MeasuresClass I or class II recall of a 510(k) medical device between its FDA regulatory clearance date and December 31, 2020.ResultsThe sample included 35 176 medical devices, of which 4007 (11.4%) were recalled. The applicant devices cited a mean of 2.6 predicate medical devices, with mean ages of 3.6 years and 7.4 years for the newest and oldest, respectively, predicate medical devices. Of the applicant devices, 93.9% cited predicate medical devices with no ongoing recalls, 4.3% cited predicate medical devices with 1 ongoing class I or class II recall, 1.0% cited predicate medical devices with 2 ongoing recalls, and 0.8% cited predicate medical devices with 3 or more ongoing recalls. Applicant devices citing predicate medical devices with 3 or more ongoing recalls were significantly associated with a 9.31–percentage-point increase (95% CI, 2.84-15.77 percentage points) in recall probability compared with devices without ongoing recalls of predicate medical devices, or an 81.2% increase in recall probability relative to the mean recall probability. A 1-SD increase in the total number of predicate medical devices cited by the applicant device was significantly associated with a 1.25–percentage-point increase (95% CI, 0.62-1.87 percentage points) in recall probability, or an 11.0% increase in recall probability relative to the mean recall probability. A 1-SD increase in the newest age of a predicate medical device was significantly associated with a 0.78–percentage-point decrease (95% CI, 1.29-0.30 percentage points) in recall probability, or a 6.8% decrease in recall probability relative to the mean recall probability.Conclusions and RelevanceThis exploratory cross-sectional study of 510(k) medical devices cleared by the FDA between 2003 and 2018 demonstrated significant associations between 510(k) submission characteristics and recalls of medical devices. Further research is needed to understand the implications of these associations.
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V, Rudresh Dev. "Wireless Devices." International Journal of Research Publication and Reviews 4, no. 5 (May 4, 2023): 1653–54. http://dx.doi.org/10.55248/gengpi.234.5.36318.
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Mueller, E., R. Kammula, and D. Marlowe. "Regulation of “Biomaterials” and Medical Devices." MRS Bulletin 16, no. 9 (September 1991): 39–41. http://dx.doi.org/10.1557/s0883769400056037.
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On May 28, 1976, President Gerald R. Ford signed into law the Medical Device Amendments to the Federal Food, Drug and Cosmetic Act. The purpose of the Amendments is to ensure that medical devices are safe and effective, and properly labelled for their intended use. In order to accomplish this mandate, the Amendments provide the Food and Drug Administration (FDA) with authority to regulate devices during most phases of their development, testing, and use. The FDA's approach to this regulation focuses heavily on both the pre- and post-market phases of a device's lifetime. During the pre-market phase, the FDA concentrates on providing a reasonable assurance that new devices are adequately evaluated for safety and effectiveness. Implicit in this assessment is the concept of balancing risk to benefit. If the benefits significantly outweigh the risks for the intended use, the device will most likely be approved for marketing in the United States. Since risk/benefit assessments for new technology involve considerable clinical judgment, the FDA utilizes expert panels composed of clinicians, engineers, toxicologists, and other experts familiar with the devices. These panels are often directed to review the data provided by the manufacturer to support claims for device safety and effectiveness. If the advisory panel believes the data support the manufacturer's claims, a recommendation for approval for marketing is made to the FDA. The Agency must ultimately decide whether the device is to receive approval for marketing.
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Pai, Dhruv B. "Mapping the genealogy of medical device predicates in the United States." PLOS ONE 16, no. 10 (October 7, 2021): e0258153. http://dx.doi.org/10.1371/journal.pone.0258153.
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Background In the United States, medical devices are regulated and subject to review by the Food and Drug Administration (FDA) before they can be marketed. Low-to-medium risk novel medical devices can be reviewed under the De Novo umbrella before they can proceed to market, and this process can be fairly cumbersome, expensive, and time-consuming. An alternate faster and less-expensive pathway to going to market is the 510(k) pathway. In this approach, if the device can be shown to be substantially equivalent in safety and effectiveness to a pre-existing FDA-approved marketed device (or “predicates”), it can be cleared to market. Due to the possibility of daisy-chaining predicate devices, it can very quickly be difficult to unravel the logic and justification of how a particular medical device’s equivalence was established. From patients’ perspective, this minimizes transparency in the process. From a vendor perspective, it can be difficult to determine the right predicate that applies to their device. Methods We map the connectivity of various predicates in the medical device field by applying text mining and natural language processing (NLP) techniques on data publicly made available by the FDA 78000 device summaries were scraped from the US FDA 510(k) database, and a total of 2,721 devices cleared by the 510(k) regulatory pathway in 2020 were used as a specific case study to map the genealogy of medical devices cleared by the FDA. Cosine similarity was used to gauge the degree of substantial equivalence between two medical devices by evaluating their device descriptions and indications for use. Recalls and complaints for predicate devices were extracted from the FDA’s Total Product Life Cycle database using html scraping and web page optical character recognition to determine the similarity between class 1 recalled devices (the most severe form of device recall) and other substantially equivalent devices. A specific product code was used to illustrate the mapping of the genealogy from a De Novo device. Results and discussion The ancestral tree for the medical devices cleared in 2020 is vast and sparse, with a large number of devices having only 1–2 predicates. Evaluation of substantial equivalence data from 2003–2020 shows that the standard for substantial equivalence has not changed significantly. Studying the recalls and complaints, shows that the insulin infusion pump had the highest number of complaints, yet none of the recalled devices bore significant degree of text similarity to currently marketed devices. The mapping from the De Novo device case study was used to develop an ancestry map from the recalled predicate (recalled due to design flaws) to current substantially equivalent products in the market. Conclusions Besides enabling a better understanding of the risks and benefits of the 510(k) process, mapping of connectivity of various predicates could help increase consumer confidence in the medical devices that are currently in the marketplace.
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Brusselaers, Jan, Ellen Bracquene, Jef Peeters, and Yoko Dams. "Economic consequences of consumer repair strategies for electrical household devices." Journal of Enterprise Information Management 33, no. 4 (November 13, 2019): 747–67. http://dx.doi.org/10.1108/jeim-12-2018-0283.
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Purpose The purpose of this paper is to investigate to what extent a consumer’s repair strategy impacts the annual costs of ownership of a washing machine and two types of vacuum cleaner. Design/methodology/approach The annual cost of ownership is determined by calculating the annual life cycle cost (LCC) for the respective devices. The annual LCCs of the different scenarios allow a comparison of the different repair strategy options. A Monte Carlo simulation is run to introduce parameter variability. The device’s failure rate is estimated by a combination of data sets on the devices’ performance. Findings Results demonstrate that the repair of the devices considered is a more favourable option over replacement. A consumer who aims for the lowest annual LCC should allow for a high number of repairs per device, without putting a maximum on the cost per repair. However, the consumer should become more cautious when a device approaches the end of its expected lifetime. Finally, the purchase of warranty can be interesting when the warranty covers a sufficiently long proportion of the device’s (expected) lifetime and when its cost does not exceed a threshold proportion of the initial purchase price. Research limitations/implications The costs for repair might be overestimated. Future research can focus on the reduction of repair costs following self-repair. Practical implications The results provide strong arguments in favour of repair instead of replacement of broken devices. Originality/value This is the first research to quantify the influence of consumer behaviour in the context of repair of devices on the ownership costs of these devices.
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Ruff, Katherine. "How impact measurement devices act: the performativity of theory of change, SROI and dashboards." Qualitative Research in Accounting & Management 18, no. 3 (January 22, 2021): 332–60. http://dx.doi.org/10.1108/qram-02-2019-0041.
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Purpose This study aims to examine the role of devices in assessing the social impact of an organization. The study examines the effects of device and analyst expertise on the contents and conclusions of the report. Design/methodology/approach Six impact reports based on the same data from the same organization were compared to each other, to the charity data and to the devices used. Specific attention is paid to the role of the device’s sociomaterial form and discursive entanglements. Findings The six reports assessed the impact differently from each other and in ways that were consistent with the devices used. The devices performatively reconfigured the charity in impact reports through a series of omissions and misrepresentations which could be traced to the discourses hardwired into the devices themselves. The devices did not simply present the same impact assessment to different audiences or for different purposes, but (mis)represented the charity in specific ways aligned with the discursive entanglements. Research limitations/implications The performativity of sociomaterial impact devices has implications for how researchers approach the study of impact measurement. Practical implications In this study, faithful adherence to an impact device led to greater omissions and misrepresentations than less expert impact assessments. Analysts should be supported to identify biases in their devices and be aware of sorts of omissions and misrepresentations that may result. Faithful adherence may not be the mark of rigorous analysis. Originality/value Performativity of impact measurement devices is explored with a unique data set.
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Teleron, Jerry I., Jeffrey T. Leonen, and Christian Louis M. Galang. "SELF-SUSTAINED POWER FOR MOBILE DEVICES: A STEPPER MOTOR-DRIVEN SOLUTION." International Journal of Engineering Science Technologies 7, no. 3 (July 14, 2023): 87–97. http://dx.doi.org/10.29121/ijoest.v7.i3.2023.512.
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This study introduces a self-sustained power solution for mobile devices using a stepper motor-driven mechanism. The objective is to ensure reliable power supply during critical situations when traditional sources are unavailable. A prototype device was designed and experimentally evaluated.The device utilizes a stepper motor as a generator, converting mechanical energy into electrical energy through a hand crank. A full bridge rectifier transforms the generated alternating current into direct current compatible with mobile devices. A battery serves as the primary power storage, enabling energy accumulation.Experimental testing verified the device's performance. Mobile devices, including cellphones, laptops, and routers, were connected to assess charging capabilities. The results demonstrated successful charging, providing dependable power during outages and inaccessible charging methods.The findings establish the stepper motor-driven self-sustained power device as a practical emergency power solution. It empowers individuals to maintain communication channels and power mobile devices during critical situations, enhancing resilience. Its versatility and portability ensure effectiveness in diverse locations where conventional power sources are unreliable.In conclusion, this study presents a novel self-sustained power solution employing a stepper motor-driven mechanism. Experimental results confirm its capability to charge mobile devices, supporting communication and resilience during emergencies. The device has significant potential to benefit individuals and communities, providing reliable power and improving emergency response and communication capabilities.
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Milczarek, Adam, and Kamil Możdżyński. "A Unified Data Profile for Microgrid Loads, Power Electronics, and Sustainable Energy Management with IoT." Energies 17, no. 6 (March 7, 2024): 1277. http://dx.doi.org/10.3390/en17061277.
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Controllable devices in a classical centralized grid work independently, providing desired functionalities for the owner only, making grid stability and efficient energy management challenging. Therefore, the dynamically developing communication infrastructure has been crucial in improving local energy management and stability, introducing the Internet of Things and, finally, creating micro- or smart grids. Communication technology already allows for exchanging data and information with high bandwidth in practical industrial and grid applications. However, considering the increasing number of electrical devices with different purposes, parameters, and possibilities to work as an energy source or storage, the challenge is device profile standardization, especially for power electronics devices. As many devices as possible should be able to exchange information with the grid operator or local area/home energy management device, like industrial agents, energy routers, or smart transformers. The number and types of parameters, outputs, and input signals available in the devices from the communication point of view are significantly different, making it extremely difficult to apply the advanced energy management algorithm. Therefore, the unified data profile for modern loads was developed and discussed. The proposed device model was standardized, including mandatory information about the device’s work and parameters, with the possibility of reading the control commands from the supervisor device. The proposed unified model was studied in simulation research, integrating self-balanced and self-control areas.
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Žarković, Dragana, Monika Šorfová, Katja Groleger-Sršen, and David Ravnik. "Ergonomic proposals for the development of robot-assisted gait training devices ISSN." Russian journal of biomechanics. 23, no. 4 (December 30, 2019): 484–93. http://dx.doi.org/10.15593/rjbiomech/2019.4.07.
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Neurological gait disturbances require long-term gait rehabilitation. According to existing research results, robot-assisted gait training devices are designed to improve patient’s walking capabilities and to eliminate the operator's physical overloading. The aim of this paper is to present an ergonomic analysis of commercially available robot-assisted gait training devices, including both the operators and patients postures during robot-assisted gait training therapy. This ergonomics analysis was performed on the Hocoma’s Lokomat Pro, involving five randomly chosen device's operators and ten adult and children patients who received gait therapies on the day of the experiment. Both evaluators concluded that the most problematic points, from aspects of safety and fatigue for the operators, were the preparation process of the device, device adjustments to each patient individually, and the noise produced by the device. Subsquently patients mostly struggled with the device's ramp and uncomfortable harness. It was noted that although the Lokomat Pro is the most widely used robot-assisted gait training device with many advantages that contribute to improved patient ́s gait capacities, like in every medical device, there is always room for improvement. Research and development of robot-assisted gait training devices is a long-term process requiring multidisciplinary cooperation. The cooperation represents an enriching experience for a whole team of specialists and ensures that the product meets the criteria for the end-users.
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Jarow, Jonathan P., and John H. Baxley. "Medical devices: US medical device regulation." Urologic Oncology: Seminars and Original Investigations 33, no. 3 (March 2015): 128–32. http://dx.doi.org/10.1016/j.urolonc.2014.10.004.
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SHIKIDA, Mitsuhiro, and Kazuo SATO. "Micromechanical Devices. Micromachined Fluidic Device Systems." Journal of the Japan Society for Precision Engineering 65, no. 5 (1999): 651–54. http://dx.doi.org/10.2493/jjspe.65.651.
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Bezerra, Vitor Hugo, Victor Guilherme Turrisi da Costa, Sylvio Barbon Junior, Rodrigo Sanches Miani, and Bruno Bogaz Zarpelão. "IoTDS: A One-Class Classification Approach to Detect Botnets in Internet of Things Devices." Sensors 19, no. 14 (July 19, 2019): 3188. http://dx.doi.org/10.3390/s19143188.
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Internet of Things (IoT) devices have become increasingly widespread. Despite their potential of improving multiple application domains, these devices have poor security, which can be explored by attackers to build large-scale botnets. In this work, we propose a host-based approach to detect botnets in IoT devices, named IoTDS (Internet of Things Detection System). It relies on one-class classifiers, which model only the legitimate device behaviour for further detection of deviations, avoiding the manual labelling process. The proposed solution is underpinned by a novel agent-manager architecture based on HTTPS, which prevents the IoT device from being overloaded by the training activities. To analyse the device’s behaviour, the approach extracts features from the device’s CPU utilisation and temperature, memory consumption, and number of running tasks, meaning that it does not make use of network traffic data. To test our approach, we used an experimental IoT setup containing a device compromised by bot malware. Multiple scenarios were made, including three different IoT device profiles and seven botnets. Four one-class algorithms (Elliptic Envelope, Isolation Forest, Local Outlier Factor, and One-class Support Vector Machine) were evaluated. The results show the proposed system has a good predictive performance for different botnets, achieving a mean F1-score of 94% for the best performing algorithm, the Local Outlier Factor. The system also presented a low impact on the device’s energy consumption, and CPU and memory utilisation.
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Huang, Xin Mao, Ke Yi Kuo, and Yi Chiou. "Exploiting Mobile Devices to Assist Identification System of Photos for Social Relationship." Applied Mechanics and Materials 284-287 (January 2013): 3418–22. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.3418.
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With the popularity and prevalence of mobile devices, they have become indispensable daily necessities. The rapid development of software and hardware technology has made mobile devices increasingly powerful in function. Mobile devices have been inextricably linked with people’s lives. Moreover, as a result of the prevalence of social networking sites, the topic of people’s social relationship mining has attracted the attention of numerous researchers. This paper presented a mobile device-assisted determining social relationship system, which mainly uses the mobile device to collect geographic information about the surrounding people to determine whether they are within the angle of view of the mobile device's camera. The information is stored in the pictures as the basis for people relationship mining. The proposed approach has automatic and rapid processing capabilities for large amounts of photo data.
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Paul, Riya, Amol Deshpande, and Fang Luo. "Thermal Decoupling in Power Electronics Modules Using Thermal Pyrolytic Graphite." International Symposium on Microelectronics 2019, no. 1 (October 1, 2019): 000183–87. http://dx.doi.org/10.4071/2380-4505-2019.1.000183.
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Abstract The device within a power electronics module package will fail if the maximum junction temperature is not within the device's permissible maximum temperature rating specified by the manufacturer. Modern electronic miniaturization demands multi-chip module (MCM) packaging providing different semiconductor technology integration, reduced number of component interconnects, and lower power supply. But the huge amount of heat generated by each chip produces thermal coupling among devices, leading to an increase in the junction temperature. The power device specifications in the datasheet assume the devices being mounted on a suitable heatsink. Wide bandgap (WBG) devices like silicon carbide (SiC) devices can generally sustain a maximum junction temperature of about 175 °C – 200 °C. The junction temperature of the WBG devices becomes severe in a high-density high-power module. This highlights the need for a thermal management system to limit the maximum junction temperature within the device's permissible range. As a result, the power module needs to be connected to a heatsink to effectively increase the surface area of the heat dissipation junctions. A high conductivity material based heatsink extracts heat effectively from the module as the thermal resistance value remains low. In this paper, preliminary thermal analysis is done for a high density high-power module where the high in-plane thermal conductivity of thermal pyrolytic graphite (TPG) is exploited in substrate as well as heatsink designs. TPG brings down the junction temperature to a considerably lower level, leading to a safer power module functioning. This paper focuses on the design and proper alignment of the substrate and heatsink with respect to the module layout so that maximum junction temperature is reduced by proper heat extraction far below the operating temperature of the devices and also extent of reduction of the thermal coupling among the power devices placed next to each other on the same plane within the power module.
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Amin, Muhammad Rizwan. "Mobile Cloud Computing-Challenges and Future Prospects." International Journal of Information Systems and Computer Technologies 2, no. 2 (July 20, 2023): 44–51. http://dx.doi.org/10.58325/ijisct.002.02.0050.
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With the expanding use of portable devices in modern environments, everything, including shopping, social networking, and information collecting, is now possible via mobile devices. Mobile phone use, on the other hand, is expanding by the day. Because the use of mobile devices has increased the number of computing jobs, so has the amount of processing of these tasks. Despite all of these gains in data storage and processing, mobile devices struggle to handle massive applications such as CPUs.
MCC enables a mobile device to do operations or analyze data in the cloud and then return results to the device. Because the processing takes place in the cloud, it makes use of the mobile device's CPU capacity in comparison to non-cloud processing. I am faster at it. It also supports cloud storage, allowing you to view your data from everywhere on any device. We will explore concerns and obstacles in MCC as the data is processed on the internet and the results are given back to the mobile device in this research study. This can lead to concerns with security, integrity, and privacy. In this essay, we will cover the benefits, challenges, and limitations of mobile cloud computing and suggest possible solutions to these issues.
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Honrao, Shivam S. "A Survey on Anti-Theft Mobile Tracking and Monitoring System." International Journal for Research in Applied Science and Engineering Technology 11, no. 11 (November 30, 2023): 380–83. http://dx.doi.org/10.22214/ijraset.2023.56428.
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The rapid proliferation of mobile devices has led to a significant increase in the cases of mobile theft and unauthorized access to personal data. To address these security concerns, an “Antitheft Mobile Tracking and Monitoring System” is proposed. The application aims to enhance the security of mobile devices by providing users with the means to track and recover their stolen or lost devices. The Antitheft Mobile Tracking and Monitoring System offers a comprehensive solution to combat mobile theft and enhance device security. By combining real-time GPS tracking, image capturing and use of mail protocols to facilitate them has provided it with capabilities with strong authentication measures, the system provides users with effective tools to mitigate the risks associated with mobile device theft. As mobile devices continue to play an integral role in modern life, such security measures are essential to protect user privacy and personal information. The widespread adoption of mobile devices has revolutionized the way we communicate, work, and access information. With this technological advancement, however, comes an unfortunate increase in the incidents of mobile theft and unauthorized access to personal data. The loss of a mobile device not only represents a financial setback but also exposes users to potential breaches of their privacy and security. This real-time tracking capability enables users and authorized personnel, such as law enforcement agencies, to pinpoint the device's location accurately.
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Martinez-Lopez, Andrea G., David E. Guzmán-Caballero, Israel Mejia, and Julio C. Tinoco. "Silicon Based Coplanar Capacitive Device for Liquid Sensor Applications." Sensors 21, no. 17 (September 5, 2021): 5958. http://dx.doi.org/10.3390/s21175958.
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The development of silicon-based sensor devices has enabled the possibility to pursue novel integrated smart sensor technologies. Under this scenario, capacitive sensor devices are one viable option for implementing different kinds of applications. In this paper, an interdigitated coplanar capacitive device fabricated over a silicon substrate is presented and its potential use as liquid sensor is demonstrated. Additionally, a detailed capacitance model, which includes the parasitic capacitances introduced by the silicon substrate, was developed. The capacitance model has been theoretically validated through finite-element simulations as well as experimentally by comparison with fabricated devices. A polydimethylsiloxane mold has been fabricated and bonded to the sensor device with the aim of defining a cavity to collect the liquid sample into the device’s active region. The active capacitance component correlates to the electric field coupling between adjacent metal lines. Therefore, any change to the dielectric constant of the medium above the coplanar metal lines will produce a change to the device capacitance. Finally, the main guidelines for device performance improvement are depicted.
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Fuentes, Daniel, Luís Correia, Nuno Costa, Arsénio Reis, João Barroso, and António Pereira. "SAR.IoT: Secured Augmented Reality for IoT Devices Management." Sensors 21, no. 18 (September 7, 2021): 6001. http://dx.doi.org/10.3390/s21186001.
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Currently, solutions based on the Internet of Things (IoT) concept are increasingly being adopted in several fields, namely, industry, agriculture, and home automation. The costs associated with this type of equipment is reasonably small, as IoT devices usually do not have output peripherals to display information about their status (e.g., a screen or a printer), although they may have informative LEDs, which is sometimes insufficient. For most IoT devices, the price of a minimalist display, to output and display the device’s running status (i.e., what the device is doing), might cost much more than the actual IoT device. Occasionally, it might become necessary to visualize the IoT device output, making it necessary to find solutions to show the hardware output information in real time, without requiring extra equipment, only what the administrator usually has with them. In order to solve the above, a technological solution that allows for the visualization of IoT device information in actual time, using augmented reality and a simple smartphone, was developed and analyzed. In addition, the system created integrates a security layer, at the level of AR, to secure the shown data from unwanted eyes. The results of the tests carried out allowed us to validate the operation of the solution when accessing the information of the IoT devices, verify the operation of the security layer in AR, analyze the interaction between smartphones, the platform, and the devices, and check which AR markers are most optimized for this use case. This work results in a secure augmented reality solution, which can be used with a simple smartphone, to monitor/manage IoT devices in industrial, laboratory or research environments.
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Sakaguchi, Mitsuhito. "Special edition Optical devices. 9 Optical information processing devices. 1 Optical switching device." Journal of the Institute of Television Engineers of Japan 39, no. 11 (1985): 1069–72. http://dx.doi.org/10.3169/itej1978.39.1069.
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Bin Ahmadon, Mohd Anuaruddin, Shingo Yamaguchi, Abd Kadir Mahamad, and Sharifah Saon. "Physical Device Compatibility Support for Implementation of IoT Services with Design Once, Provide Anywhere Concept." Information 12, no. 1 (January 12, 2021): 30. http://dx.doi.org/10.3390/info12010030.
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This paper proposes a method to ensure compatibility between physical devices for implementing a service design. The method supports the relaxation of strict implementation. It allows a set of compatible devices to be implemented instead of specifying specific devices in the service design. This paper’s main contribution is the formalization of device constraints using the device’s attributes and a method to check the compatibility between devices. The method’s characteristic is that a service designer can decide the level of strictness and abstractness of the design by adjusting the compatibility rate. We show the feasibility of the proposed method to achieve the goal of “Design Once, Provide Anywhere” with an application example. We also evaluated the quality of service of the implemented IoT service in a different environment using a platform called Elgar.
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Naz, Naila, Muazzam A. Khan, Suliman A. Alsuhibany, Muhammad Diyan, Zhiyuan Tan, Muhammad Almas Khan, and Jawad Ahmad. "Ensemble learning-based IDS for sensors telemetry data in IoT networks." Mathematical Biosciences and Engineering 19, no. 10 (2022): 10550–80. http://dx.doi.org/10.3934/mbe.2022493.
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<abstract><p>The Internet of Things (IoT) is a paradigm that connects a range of physical smart devices to provide ubiquitous services to individuals and automate their daily tasks. IoT devices collect data from the surrounding environment and communicate with other devices using different communication protocols such as CoAP, MQTT, DDS, etc. Study shows that these protocols are vulnerable to attack and prove a significant threat to IoT telemetry data. Within a network, IoT devices are interdependent, and the behaviour of one device depends on the data coming from another device. An intruder exploits vulnerabilities of a device's interdependent feature and can alter the telemetry data to indirectly control the behaviour of other dependent devices in a network. Therefore, securing IoT devices have become a significant concern in IoT networks. The research community often proposes intrusion Detection Systems (IDS) using different techniques. One of the most adopted techniques is machine learning (ML) based intrusion detection. This study suggests a stacking-based ensemble model makes IoT devices more intelligent for detecting unusual behaviour in IoT networks. The TON-IoT (2020) dataset is used to assess the effectiveness of the proposed model. The proposed model achieves significant improvements in accuracy and other evaluation measures in binary and multi-class classification scenarios for most of the sensors compared to traditional ML algorithms and other ensemble techniques.</p></abstract>
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Brenner, Michael J., Jared A. Shenson, Austin S. Rose, Tulio A. Valdez, Masayoshi Takashima, Omar G. Ahmed, Philip A. Weissbrod, et al. "New Medical Device and Therapeutic Approvals in Otolaryngology: State of the Art Review 2020." OTO Open 5, no. 4 (October 2021): 2473974X2110570. http://dx.doi.org/10.1177/2473974x211057035.
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Objectives To evaluate new drugs and devices relevant to otolaryngology–head and neck surgery that were approved by the US Food and Drug Administration (FDA) in 2020. Data Sources Publicly available device and therapeutic approvals from ENT (ear, nose, and throat), anesthesia, neurology (neurosurgery), and plastic and general surgery FDA committees. Review Methods Members of the American Academy of Otolaryngology–Head and Neck Surgery’s Medical Devices and Drugs Committee reviewed new therapeutics and medical devices from a query of the FDA’s device and therapeutic approvals. Two independent reviewers assessed the drug’s or device’s relevance to otolaryngology, classified to subspecialty field, with a critical review of available scientific literature. Conclusions The Medical Devices and Drugs Committee reviewed 53 new therapeutics and 1094 devices (89 ENT, 140 anesthesia, 511 plastic and general surgery, and 354 neurology) approved in 2020. Ten drugs and 17 devices were considered relevant to the otolaryngology community. Rhinology saw significant improvements around image guidance systems; indications for cochlear implantation expanded; several new monoclonal therapeutics were added to head and neck oncology’s armamentarium; and several new approvals appeared for facial plastics surgery, pediatric otolaryngology, and comprehensive otolaryngology. Implications for Practice New technologies and pharmaceuticals offer the promise of improving how we care for otolaryngology patients. However, judicious introduction of innovations into practice requires a nuanced understanding of safety, advantages, and limitations. Working knowledge of new drugs and medical devices approved for the market helps clinicians tailor patient care accordingly.
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Lewis, James R., Patrick M. Commarford, Peter J. Kennedy, and Wallace J. Sadowski. "Handheld Electronic Devices." Reviews of Human Factors and Ergonomics 4, no. 1 (October 2008): 105–48. http://dx.doi.org/10.1518/155723408x342880.
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From PDAs to cell phones to MP3 players, handheld electronic devices are ubiquitous. Human factors engineers and designers have a need to remain informed about advances in research on user interface design for this class of devices. This review provides human factors research summaries and research-based guidelines for the design of handheld devices. The major topics include anthropometry (fitting the device to the hand), input (types of device control and methods for data entry), output (display design), interaction design (one-handed use, scrolling, menu design, image manipulation, and using the mobile Web), and data sharing (among users, devices, and networks). Thus, this review covers the key aspects of the design of handheld devices, from the design of the physical form of the device through its hardware and software, including its behavior in networks.
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Singh, Rajendra, and Balkrishan Kachroo. "Textual Cohesion in Hindi." ITL - International Journal of Applied Linguistics 76 (January 1, 1987): 1–24. http://dx.doi.org/10.1075/itl.76.01sin.
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The purpose of this paper is to summarize some preliminary research on textual cohesion in Hindi. The study of linguistic cohesion attempts to isolate linguistic devices used to ‘link’ sentences in a discourse. The present study was undertaken to find out exactly what cohesion devices are used in Hindi and how the linking texture of Hindi discourses differs from that of English. Although both Hindi and English use some of the same cohesion devices, there are both quantitative and qualitative differences in their textures. This paper focuses on Hindi-particular cohesion devices and on devices differentially exploited to Hindi and English. An example of a Hindi particular cohesion device is ‘Adjective Promotion’. The differential exploitation of the device of co-referential NP provides an example of the second type of difference between the two languages. Hindi uses it far more frequently than English. Our results also provide evidence for the hypothesis that parallel sublanguages of Hindi and English are more alike in their cohesive texture than are different sub-languages of either of these two languages. ‘Stylistic contact’ in the domain of more technical sublanguage may provide an explanation for this. Our study shows not only what some of the Hindi-particular cohesion devies are but also how a large number of shared cohesion devices are differentially exploited by different languages and what sorts of trade-offs are made amongst the major types of cohesion devices (semantic, syntactic, morphological, and lexical).
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Posobkiewicz, Krzysztof, and Krzysztof Górecki. "Influence of Selected Factors on Thermal Parameters of the Components of Forced Cooling Systems of Electronic Devices." Electronics 10, no. 3 (February 1, 2021): 340. http://dx.doi.org/10.3390/electronics10030340.
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The paper presents some investigation results on the properties of forced cooling systems dedicated to electronic devices. Different structures of such systems, including Peltier modules, heat sinks, fans, and thermal interfaces, are considered. Compact thermal models of such systems are formulated. These models take into account a multipath heat transfer and make it possible to compute waveforms of the device’s internal temperature at selected values of the power dissipated in the device. The analytical formulas describing the dependences of the thermal resistance of electronic devices co-operating with the considered cooling systems on the power dissipated in the cooled electronic device and the power feeding the Peltier module and the speed of airflow caused by a fan are proposed. The correctness of the proposed models is verified experimentally in a wide range of powers dissipated in electronic devices operating in different configurations of the used cooling system.
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Handayani, Ade Silvia, Anisah Fadhilah, Ibnu Ziad, Nyayu Latifah Husni, Sri Chodidjah, Mega Hasanul Huda, Nur Agustini, Mieska Despitasari, and Riswal Hanafi Siregar. "Design of Android and IoS Applications for Mobile Health Monitoring Devices." Advance Sustainable Science Engineering and Technology 5, no. 2 (July 31, 2023): 0230206. http://dx.doi.org/10.26877/asset.v5i2.16508.
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This research proposes a multifunctional wireless health monitoring tool with a display for Android and iOS devices. This research aims to develop a realistic solution for real-time and conveniently accessible health monitoring via mobile devices. The device allows users to test and track health factors such as heart rate, blood pressure, blood oxygen levels, body temperature, and blood glucose. It collects data properly by using wireless technology and sensors. The data is subsequently supplied to the appropriate apps on Android and iOS devices. The data is presented visually in the program, making it instructive and user-friendly. The device's development technique involved extensive testing and validation against established comparators to assure accuracy. The results of this study show that this digital, multi-purpose health monitoring device works well and reliably to give real-time health information. This innovation promotes health monitoring and digital health information access.
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Pandey, Aditya Kumar. "ByteBuddy - Enhanced Storage Device Verification Tool." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 05 (May 30, 2024): 1–5. http://dx.doi.org/10.55041/ijsrem35028.
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In today's digital world, it's crucial to know if storage devices are real or fake. ByteBuddy helps with this. It checks how much data a device can hold and how fast it can transfer that data. It does this by filling the device with random data, checking it, and measuring its speed. This helps us know if the device's claimed capacity is real or not. ByteBuddy is important because it helps people make smart choices when buying storage devices. ByteBuddy is not just a tool; it's a game-changer for consumers and data safety. In this paper, we'll dive into ByteBuddy's details to understand how it works, why it's helpful, and what it means for consumers. By learning about ByteBuddy, people can better protect their digital stuff and make wiser buying decisions. Let's explore ByteBuddy, where simple tests lead to big discoveries about storage devices.
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Kuaban, Godlove Suila, Erol Gelenbe, Tadeusz Czachórski, Piotr Czekalski, and Julius Kewir Tangka. "Modelling of the Energy Depletion Process and Battery Depletion Attacks for Battery-Powered Internet of Things (IoT) Devices." Sensors 23, no. 13 (July 6, 2023): 6183. http://dx.doi.org/10.3390/s23136183.
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The Internet of Things (IoT) is transforming almost every industry, including agriculture, food processing, health care, oil and gas, environmental protection, transportation and logistics, manufacturing, home automation, and safety. Cost-effective, small-sized batteries are often used to power IoT devices being deployed with limited energy capacity. The limited energy capacity of IoT devices makes them vulnerable to battery depletion attacks designed to exhaust the energy stored in the battery rapidly and eventually shut down the device. In designing and deploying IoT devices, the battery and device specifications should be chosen in such a way as to ensure a long lifetime of the device. This paper proposes diffusion approximation as a mathematical framework for modelling the energy depletion process in IoT batteries. We applied diffusion or Brownian motion processes to model the energy depletion of a battery of an IoT device. We used this model to obtain the probability density function, mean, variance, and probability of the lifetime of an IoT device. Furthermore, we studied the influence of active power consumption, sleep time, and battery capacity on the probability density function, mean, and probability of the lifetime of an IoT device. We modelled ghost energy depletion attacks and their impact on the lifetime of IoT devices. We used numerical examples to study the influence of battery depletion attacks on the distribution of the lifetime of an IoT device. We also introduced an energy threshold after which the device’s battery should be replaced in order to ensure that the battery is not completely drained before it is replaced.
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Saymanova, Shaxzada Sultanbaevna. "PHONETIC STYLISTIC DEVICES." CURRENT RESEARCH JOURNAL OF PHILOLOGICAL SCIENCES 02, no. 10 (October 1, 2021): 98–103. http://dx.doi.org/10.37547/philological-crjps-02-10-19.
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This article deals with the analysis of phonetic stylistic devices and expressive means in the works of poets. Examples from poetry are given in this research work and they are of great importance for learning stylistics
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Honrao, Shivam. "Implementation on Anti-Theft Mobile Tracking and Monitoring System." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 05 (May 4, 2024): 1–5. http://dx.doi.org/10.55041/ijsrem32602.
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The rapid proliferation of mobile devices has led to a significant increase in the cases of mobile theft and unauthorized access to personal data. To address these security concerns, an “Antitheft Mobile Tracking and Monitoring System” is proposed. The application aims to enhance the security of mobile devices by providing users with the means to track and recover their stolen or lost devices. The Antitheft Mobile Tracking and Monitoring System offers a comprehensive solution to combat mobile theft and enhance device security. By combining real-time GPS tracking, image capturing and use of mail protocols to facilitate them has provided it with capabilities with strong authentication measures, the system provides users with effective tools to mitigate the risks associated with mobile device theft. As mobile devices continue to play an integral role in modern life, such security measures are essential to protect user privacy and personal information. The widespread adoption of mobile devices has revolutionized the way we communicate, work, and access information. With this technological advancement, however, comes an unfortunate increase in the incidents of mobile theft and unauthorized access to personal data. The loss of a mobile device not only represents a financial setback but also exposes users to potential breaches of their privacy and security. This real-time tracking capability enables users and authorized personnel, such as law enforcement agencies, to pinpoint the device's location accurately. Key Words: GPS technology, Real-time Notification, SMTP, Authentication.
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Ali, Syed Mubashir, and Muhammad Usman. "Prospects and Challenges of Implementing Enterprise Mobility Management Case of a Large Telecom Service Provider in United Arab Emirates." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 10, no. 8 (August 30, 2013): 1930–33. http://dx.doi.org/10.24297/ijct.v10i8.1475.
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Over the last few years, there has been an exponential rise in the trend to use mobile devices within enterprises. Organizations and employees are using their smart phones and tablets to aid in work. Several organizations has introduced the concept of “bring your own device†(BYOD), in order to achieve more efficiency and improved productivity. This increase in use of mobile devices, although providing benefits to the organizations, is also resulting in more effort for the information technology (IT) staff to provide support and manage these devices within the enterprise. Several organizations around the globe are implementing mobile device management (MDM) / enterprise mobility management (EMM) solutions to manage mobile devices within the organization. This study identifies the prospects and challenges in implementing EMM using a case of a large telecom service provider in United Arab Emirates (UAE).
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Parkhomenko, Hryhorii P., Erik O. Shalenov, Zarina Umatova, Karlygash N. Dzhumagulova, and Askhat N. Jumabekov. "Fabrication of Flexible Quasi-Interdigitated Back-Contact Perovskite Solar Cells." Energies 15, no. 9 (April 21, 2022): 3056. http://dx.doi.org/10.3390/en15093056.
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Perovskites are a promising class of semiconductor materials, which are being studied intensively for their applications in emerging new flexible optoelectronic devices. In this paper, device manufacturing and characterization of quasi-interdigitated back-contact perovskite solar cells fabricated on flexible substrates are studied. The photovoltaic parameters of the prepared flexible quasi-interdigitated back-contact perovskite solar cells (FQIBC PSCs) are obtained for the front- and rear-side illumination options. The dependences of the device’s open-circuit potential and short-circuit current on the illumination intensity are investigated to determine the main recombination pathways in the devices. Spectral response analysis of the devices demonstrates that the optical transmission losses can be minimized when FQIBC PSCs are illuminated from the front-side. Optoelectronic simulations are used to rationalize the experimental results. It is determined that the obtained FQIBC PSCs have high surface recombination losses, which hinder the device performance. The findings demonstrate a process for the fabrication of flexible back-contact PSCs and provide some directions for device performance improvements.
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Dhawan, Hirishita, Priyanka Gupta, and Anjoo Kamboj. "Comprehensive Regulatory Framework in Current Advancements of Medical Devices." Journal of Pharmaceutical Technology, Research and Management 10, no. 2 (November 10, 2022): 151–57. http://dx.doi.org/10.15415/jptrm.2022.102005.
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Background: A medical device is any tool, implant, or IVD that is intended to manage, ameliorate, avert, or identify a human disease. Simple thermometers, bandages, implants, and so on are examples. A medical device’s primary intended use is not accomplished chemically on or within the skin, nor does it require metabolization to accomplish that primary intended use. Medical devices are classified differently by different regulatory bodies. The FDA divides medical devices into three categories, whereas India and Europe divide them into four categories based on risk. Each regulated country has its own set of medical device regulations and guidelines. Purpose: The medical device sector is expected to showcase a remarkable journey of growth by 2029, achieving a 718.92-billion-dollar market with a CAGR of 5.5% over the expansion period of 2022–2029, making it the fastest-growing global market. The earlier medical device has simple inspection and testing but Post Covid19 due to an increase in imports, takeover from foreign manufacturers, and fostering innovation medical devices took off, becoming ever more sophisticated and widely available therefore the need for manufacturing and product standards was recognized, the new regulation was framed and regulatory specialists were recruited. Thereby led to the emergence of a whole new regulatory system and a post-marketing surveillance strategy. Methods: The analysis of current market size, share, and trends on medical devices for USA, Europe, and India was performed and current regulatory standards were observed which are continuously becoming stringent for all the countries with the advancement of technology. Conclusions: The Medical devices sector is the leading growing market. With the advancement in the medical device sector such as cybersecurity, digitalization, data privacy, and innovation, new entrants and new manufacturers the doors for entrepreneurship will open thus, it becomes highly important and necessary to introduce comprehensive regulatory guidelines for safety, effectiveness and customer protection, and satisfaction. The regulated medical devices sector will reach new heights with stringent vigilance and transparency benefitting society.
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Al-Begg, S. M., S. H. Saeed, and A. S. Al-Rawas. "Thermal annealing effects on the electrical characteristics of alpha particles irradiated MIS device AuTa2O5GaAs." Journal of Ovonic Research 19, no. 4 (July 2023): 359–67. http://dx.doi.org/10.15251/jor.2023.194.359.
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An alpha particle-irradiated MIS device made of AuTa2O5GaAs was used to study how thermal annealing affects the I-V characteristics and how the current changes with annealing temperature, radiation energy, and voltage biassing. The super-gate of the MIS structure was made by using thermal evaporation to build a 1000°A thick layer of gold under a vacuum of about 10-5 torr. At room temperature, the devices were exposed to alpha particles from the radioactive source 226Ra (0.5 Ci) with energies of 5.1, 4, 3, 1.8, and 1.2 MeV for 0–30 minutes. After 30 minutes of annealing at 150, 200, and 300 o C in a vacuum of 10-3 torr, the current-voltage (I-V) characteristics of the irradiation devices were found. During thermal annealing, different results were seen with bias voltages of 0.4, 1, and 2 V and temperatures of 150, 200, and 300 o C. Annealing the device at 150 o C doesn't change how stable it is, but annealing it at 300 o C causes ohmic conduction in the device's properties. The device's current can be fixed best when the device is heated to 200 o C and then cooled. Also, thermal annealing seems to have different effects on the I–V electrical characteristics of the devices depending on the energy of the particles and the voltage biassing.
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Rosenthal, Victor Daniel. "Clinical impact of needle-free connector design: A systematic review of literature." Journal of Vascular Access 21, no. 6 (February 14, 2020): 847–53. http://dx.doi.org/10.1177/1129729820904904.
Full textAbstract:
The objective of this systematic review is to analyze types of needle-free connectors and open systems and their effects on central line–associated bloodstream infection rates and other adverse outcomes through a research protocol consistent with the Preferred Reporting Items for Systematic Reviews’ recommendations. MEDLINE and Cochrane databases of systematic reviews were searched for relevant comparative studies published from January 2000 to September 2017. Eighteen studies compared central line–associated bloodstream infection (according to the Centers for Disease Control and Prevention/National Healthcare Safety Network definition), internal microbial contamination, occlusions, phlebitis, and other outcomes associated with needle-free connectors with a positive displacement device, negative displacement device, neutral displacement device, or three-way stopcock. Ten studies reported central line–associated bloodstream infection rates, which were lower with positive displacement devices versus negative displacement devices/neutral displacement devices (one study) and with negative displacement devices versus three-way stopcocks (three studies), but varied with different positive displacement device and negative displacement device/neutral displacement device designs (four studies). Seven studies reported internal microbial contamination rates, which were higher with three-way stopcocks versus negative displacement devices (two studies) and positive displacement devices (two studies), lower when positive displacement devices were used versus neutral displacement devices (one study), and varied with different types of negative displacement device (one study). Central line–associated bloodstream infection rates and most other outcomes analyzed were statistically significantly higher with three-way stopcocks (open devices) versus positive displacement device, negative displacement devices, and neutral displacement devices, but varied among closed device designs.