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Letteratura scientifica selezionata sul tema "Digital devices"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 28 febbraio 2023

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Articoli di riviste sul tema "Digital devices"

1

KAERIYAMA, Toshiyuki. "Micromechanical Devices. Digital Micromirror Device." Journal of the Japan Society for Precision Engineering 65, n. 5 (1999): 669–72. http://dx.doi.org/10.2493/jjspe.65.669.

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Kpieleh, Ferdinand. "A Review of Ddos Attack Detection in Iot Networks". Advances in Multidisciplinary and scientific Research Journal Publication 10, n. 4 (30 novembre 2022): 43–54. http://dx.doi.org/10.22624/aims/digital/v10n4p6.

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The security risks and vulnerabilities associated with these resource-constrained Internet of Things (IoT) devices grow as their usability rises. Distributed Denial of Service is one of the main dangers to Internet of Things devices (DDoS). Continuous monitoring, early detection, and adaptive decision-making are necessary for IoT device security to be robust and effective. With software-defined networking (SDN), these issues can be solved, giving IoT devices the chance to manage DDoS threats in an efficient manner. This study suggests a unique SDN-based secure IoT framework that uses IP Payload Analysis and session IP counters to identify IoT device vulnerabilities and malicious traffic sent by IoT devices. The proposed methods can readily identify the DDoS attack in the SD-IoT network by analyzing several metrics, even with high traffic volumes, thanks to the DDoS attack detection module of the framework. By creating a lot of traffic from a compromised node, which is later identified and alerted, these tactics are tested on an SDN controller. The results and comparison analysis show that the suggested framework effectively and accurately detects DDoS attacks in their early stages, with a detection rate ranging from 98% to 100% and a low false-positive rate. Keywords; IoT networks, DDoS, DDoS attacks, DDoS Detection and IoT security

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Maharjan, Urusha, Sujata Rijal, Ashutosh Jnawali, Sanjeeta Sitaula, Sanjeev Bhattarai e Gulshan Bahadur Shrestha. "Binocular vision findings in normally-sighted school aged children who used digital devices". PLOS ONE 17, n. 4 (7 aprile 2022): e0266068. http://dx.doi.org/10.1371/journal.pone.0266068.

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Purpose To determine the binocular vision status in normally-sighted school aged children who used digital devices. Methods A cross-sectional study was conducted at B.P. Koirala Lions Center for Ophthalmic Studies, Kathmandu, Nepal for a duration of one year. One hundred and eighty school aged children (71 female and 109 male) aged 7 to 17 years were included in the study. All the children underwent detailed ophthalmic and binocular vision examinations. The duration of the use of digital devices by the children were asked to either the parents or guardians present at the time of the study. The study participants were divided into two groups: children who used digital devices for the last six months (users group) and those who hadn’t used digital devices for the last six months (non users group). The users group was again divided into two subgroups: children who used digital devices for less than 3 hours per day and a day per week (low digital device users subgroup) and children who used digital devices for more than 3 hours per day and all days in a week (high digital device users subgroup). Results Accommodative amplitudes, accommodative facility, and positive fusional vergence for both near and distance were significantly reduced in the high digital device users group than in the low digital device users subgroup (p <0.01). Stereo acuity, near point of convergence, and negative fusional vergences for both near and distance were not statistically significantly different between the two subgroups. Prevalence of accommodative and vergence anomalies (except convergence insufficiency) was more in the high digital device users subgroup than in the low digital device users subgroup (p<0.01). Conclusions Children who used digital devices for a significantly greater amount of time had significantly reduced amplitudes of accommodation, accommodative facility, and positive fusional vergence both at near and distance.

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Chowdhury, Rajarshi Roy, Azam Che Idris e Pg Emeroylariffion Abas. "Device identification using optimized digital footprints". IAES International Journal of Artificial Intelligence (IJ-AI) 12, n. 1 (1 marzo 2023): 232. http://dx.doi.org/10.11591/ijai.v12.i1.pp232-240.

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<span lang="EN-US">The rapidly increasing number of internet of things (IoT) and non-IoT devices has imposed new security challenges to network administrators. Accurate device identification in the increasingly complex network structures is necessary. In this paper, a device fingerprinting (DFP) method has been proposed for device identification, based on digital footprints, which devices use for communication over a network. A subset of nine features have been selected from the network and transport layers of a single transmission control protocol/internet protocol packet based on attribute evaluators in Weka, to generate device-specific signatures. The method has been evaluated on two online datasets, and an experimental dataset, using different supervised machine learning (ML) algorithms. Results have shown that the method is able to distinguish device type with up to 100% precision using the random forest (RF) classifier, and classify individual devices with up to 95.7% precision. These results demonstrate the applicability of the proposed DFP method for device identification, in order to provide a more secure and robust network.</span>

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Tiller, John. "Digital devices in psychiatry". Journal of Mobile Technology in Medicine 2, n. 1 (2013): 30–33. http://dx.doi.org/10.7309/jmtm.2.1.6.

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Keyes, Robert W. "Physics of digital devices". Reviews of Modern Physics 61, n. 2 (1 aprile 1989): 279–87. http://dx.doi.org/10.1103/revmodphys.61.279.

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Baraky, Leticia, Nadia Raposo, Marcelo Barone e Ricardo Bento. "Digital Portable Devices (MP3)". Otolaryngology–Head and Neck Surgery 143, n. 2_suppl (agosto 2010): P229. http://dx.doi.org/10.1016/j.otohns.2010.06.492.

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Cai, Jianchen, Jiaxi Jiang, Jinyun Jiang, Yin Tao, Xiang Gao, Meiya Ding e Yiqiang Fan. "Fabrication of Transparent and Flexible Digital Microfluidics Devices". Micromachines 13, n. 4 (23 marzo 2022): 498. http://dx.doi.org/10.3390/mi13040498.

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This study proposed a fabrication method for thin, film-based, transparent, and flexible digital microfluidic devices. A series of characterizations were also conducted with the fabricated digital microfluidic devices. For the device fabrication, the electrodes were patterned by laser ablation of 220 nm-thick indium tin oxide (ITO) layer on a 175 μm-thick polyethylene terephthalate (PET) substrate. The electrodes were insulated with a layer of 12 μm-thick polyethylene (PE) film as the dielectric layer, and finally, a surface treatment was conducted on PE film in order to enhance the hydrophobicity. The whole digital microfluidic device has a total thickness of less than 200 μm and is nearly transparent in the visible range. The droplet manipulation with the proposed digital microfluidic device was also achieved. In addition, a series of characterization studies were conducted as follows: the contact angles under different driving voltages, the leakage current density across the patterned electrodes, and the minimum driving voltage with different control algorithms and droplet volume were measured and discussed. The UV–VIS spectrum of the proposed digital microfluidic devices was also provided in order to verify the transparency of the fabricated device. Compared with conventional methods for the fabrication of digital microfluidic devices, which usually have opaque metal/carbon electrodes, the proposed transparent and flexible digital microfluidics could have significant advantages for the observation of the droplets on the digital microfluidic device, especially for colorimetric analysis using the digital microfluidic approach.

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Pavlov, Pavel, Vladimir Fandeev, Valery Butakov, Dilyara Baymeeva e Venera Safiullina. "Testing digital instruments and power systems devices". E3S Web of Conferences 216 (2020): 01063. http://dx.doi.org/10.1051/e3sconf/202021601063.

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Discussed here is a technique for testing digital devices based on the calculation and control of two or more characteristics of a binary electric signal at a reference point. Signals coming from a healthy and failed digital device that are indistinguishable by the value of one of the characteristics may differ in value of the other characteristic. The combination of test methods can significantly reduce the potential of not detecting the failure of digital device. The technique is aimed at increasing the information content of the healthy state monitoring results and the possibility of localizing failures in digital instruments and devices of power systems.

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Supriyono, Abdul Rohman, Bambang Sugiantoro e Yudi Prayudi. "EKSPLORASI BUKTI DIGITAL PADA SMART ROUTER MENGGUNAKAN METODE LIVE FORENSICS". Infotekmesin 10, n. 2 (31 luglio 2019): 1–8. http://dx.doi.org/10.35970/infotekmesin.v10i2.48.

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Network devices as media file sharing and can be used as file servers have begun to appear, just as smart router devices can be used as file servers by adding USB Thumb drive as storage media. With the diversity of router devices, it becomes a challenge in digital forensic science when a case occurs by utilizing a smart router device related to file-sharing services. Then it is necessary to study the right method in investigating smart router devices. This paper discusses the use of the live forensics acquisition method in investigating smart router devices, against system log files related to file-sharing activities. In identifying the process of searching, recognizing, and documenting potential things as digital evidence of processing devices and digital media storage. The acquisition process uses two methods, namely the live acquisition method on the router device and physical acquisition on the device that is used as storage media on the smart router.

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Tesi sul tema "Digital devices"

1

Mackle, John. "Integrated digital filters". Thesis, Queen's University Belfast, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334588.

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Shetty, Reshma P., e Thomas F. Jr Knight. "Engineering transcription-based digital logic devices". Sixth International Conference on Systems Biology, 2005. http://hdl.handle.net/1721.1/29801.

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The goal of Synthetic Biology is to engineer systems from biological parts. One class of systems are those whose purpose is to process information. My work seeks to build transcription-based devices for use in combinational digital logic. Preliminary characterization experiments show that existing devices fall short of desired device behavior. I propose to develop a novel implementation of transcription-based logic by designing synthetic transcription factors from well-characterized DNA binding and dimerization domains. Initial modeling work serves to inform design of these devices.
Poster presented at the 2005 ICSB meeting, held at Harvard Medical School in Boston, MA.

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de, Souza Savita. "Digital watermarking and novel security devices". Thesis, De Montfort University, 2003. http://hdl.handle.net/2086/5847.

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This research is in the field of document security and the investigation of existing security devices. Security documents can be of two types; those that have commercial value, namely currency, articles of value and those that have legal value, namely, passports, identification cards etc. It is of vital importance in today's world, where fraud and counterfeiting are the order of the day, to protect any article or document of aesthetic importance and value. After the tragic events of September 11th 2001, security and the lack of security in every sense of the word is a much talked and researched subject. The literature review in Chapter Two will reveal that there are many security devices being currently used for various applications and each of them has many advantages and disadvantages. Devices such as magnetic cards, chip cards, biometric technology, optically variable devices, holograms and kinegrams and others have been described and their uses explained. Chapter Three is a continuation of literature review on Digital Watermarking and the available Digimarc technologies and applications in the field of security. Digimarc Corporation, based in Tualatin, Oregon, United States has been the pioneer in the field of Digital Watermarking. Microbar Security Limited, a subsidiary company of Durand Technology Limited, based at the Shrivenam 100 Business Park, Shrivenam, Oxfordshire, United Kingdom has developed its own watermarking technique, which has many advantages in comparison to the Digimarc Technology has also been described here.In Chapter Four, an optical variable device, namely, the Lippmann Optical Variable Device, named after the nineteenth century scientist Gabriel Lippmann (1845-1921), has been studied in thorough detail. Much work has been done to prove it and to understand the principle behind the theory he proposed. Currently, this type of technique based on interferential photography can be applied as a unique security device on passports, identification cards etc. The principles and theory of Lippmann photography has been explained in considerable detail. Experimental work done using various methods and using different photographic materials has also been described along with the results obtained. The application that has been emphasized here, is for passports for which this research was conducted in collaboration with Holographic Dimensions, Florida. Chapter Five, explains the principle of Covert Bar Coding which is the basis of the Microbar Watermarking Technique. Experimental results have been presented, these have been obtained using the MATLAB software. Finally, Chapter Six gives some ideas that can be pursued for future work. This work has produced two papers on Lippmann Photography and the mathematical evaluation of the emulsion co-authored by the author of the thesis. Abstracts from the papers have been used in this thesis. Also, it has produced two patents, one by `Holographic Dimensions', Florida on the Lippmann Photography and second, `Microbar Security Limited' on the `Covert Bar Coding Technique'.

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Kruger, Jaco-Louis. "Digital forensic readiness for IOT devices". Diss., University of Pretoria, 2019. http://hdl.handle.net/2263/73385.

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The Internet of Things (IoT) has evolved to be an important part of modern society. IoT devices can be found in several environments such as smart homes, transportation, the health sector, smart cities and even facilitates automation in organisations. The increasing dependence on IoT devices increases the possibility of security incidents in the physical or cyber environment. Traditional methods of digital forensic (DF) investigations are not always applicable to IoT devices due to their limited data processing resources. A possible solution for conducting forensic investigations on IoT devices is to utilise a proactive approach known as digital forensic readiness (DFR). This dissertation firstly aims to conduct a thorough review of the available literature in the current body of knowledge to identify a clear process that can be followed to implement DFR tailored for IoT devices. This dissertation then formulates requirements for DFR in IoT based on existing forensic techniques. The requirements for DFR in IoT give rise to the development of a model for DFR in IoT, which is then implemented in a prototype for IoT devices. The prototype is subsequently tested and evaluated on IoT devices that conduct proactive DFR in a simulation of a smart home system. Finally, the dissertation illustrates the feasibility of the DFR processes for IoT and serves as a basis for future research with regards to DFR in IoT. This dissertation will impact future research with regards to developing a standard for DFR in IoT.
Dissertation (MSc)--University of Pretoria, 2019.
Computer Science
MSc
Unrestricted

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Bee, Sarah Caroline. "Radiation effects in analogue to digital converters". Thesis, University College London (University of London), 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298887.

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Murad, Thamir Faraj. "Digital control of chopper-fed DC motor drive". Thesis, Loughborough University, 1985. https://dspace.lboro.ac.uk/2134/10836.

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Mirkazemi-Moud, Mehran. "Digital pulse width modulators for induction motor control". Thesis, Heriot-Watt University, 1993. http://hdl.handle.net/10399/1431.

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Shilkrot, Roy. "Digital digits : designing assistive finger augmentation devices". Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101846.

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Thesis: Ph. D., Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2015.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 194-213).
Wearable computers are becoming a widespread reality. Driven by a quest for sensorial ultrability (ultra-ability) and control of our environment and bodies, we search for ever more intimate solutions to increase our innate physical capacities using technology. Finger-wearable devices for augmentation are nowadays part of the mainstream wearable fashion and research agenda, because of their uniquely convenient placement on the human body and proximity to the most expressive of limbs - the fingers. This thesis proposes a consideration of finger augmenting devices as a new class of instruments, rather than an opportunistic approach for positioning sensors and actuators. Out of a comprehensive survey of the work on finger augmentation, I put forward a definition for finger augmentation, a classification framework, and design guidelines for creating new finger-worn devices. I present four designs of finger-augmenters, their technical underpinnings, evaluation methods and theoretical contributions. Assistance is ubiquitous throughout the spectrum of technological benefit, advancing those with specific needs for recovery or rehabilitation, as well as those looking to go beyond human ability. This cross-cutting design principle for human-computer interfaces is uncontested yet underutilized. This thesis conceptualizes the Assistive Augmentation spectrum as a metaphor for the flexible interpretability of technology to simultaneously help many communities. The concrete prototypes I hereby present: EyeRing, FingerReader, Mobile-FingerReader and MusicReader, exemplify this idea and suggest an inclusive path of technology development.
by Roy Shilkrot.
Ph. D.

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Henry, Mark. "Sports Content Viewership Motivations Across Digital Devices". ScholarWorks, 2016. https://scholarworks.waldenu.edu/dissertations/2154.

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U.S. advertisers spent over $2 billion on sporting events in 2014 directing advertisements towards consumers through digital devices used such as televisions, computers, smartphones, and tablets. The purpose of this cross-sectional study was to identify motivation factors that predict the intention to view sports content on digital devices. Knowing such factors is important for advertisers to prioritize distribution channels. Uses and gratification theory formed the theoretical framework for the study. The methodology adapted a survey that encapsulated 9 motives. The research questions examined what motives influenced sports viewership, what motives predicted the intention to view specific sports content, and the differences in viewing intention across sports content types. Data were collected through a survey administered to a qualified random sample of U.S. respondents with 525 responses received. Data were analyzed using exploratory factor analysis to group the questions into motivation factors, multiple linear regression to determine the significance of these factors in predicting viewership intent, and nonparametric Friedman testing to determine what demographics influenced viewership. Findings included: (a) 8 factors explained 76% of the variance; (b) 8 motives were significant in predicting viewership intention, with Escape (Î² = .714) ranking the highest; and (c) younger viewers had a greater intent to consume content on digital devices other than television, with smartphones (M = .73) ranking the highest. Social change benefits include: (a) sports content providers and advertisers could target the right content and advertisement to maximize viewership retention and revenue, and (b) users could view their desired sports content on their chosen device.

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Stevens, M. J. "Digital control of high frequency pulse-width modulated inverters". Thesis, University of Bristol, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373297.

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Libri sul tema "Digital devices"

1

Digital circuits and devices. [Scranton, Pa.]: National Education Corp., 1985.

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Digital forensics for handheld devices. Boca Raton, FL: CRC Press, 2013.

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(Europe), NEC Electronics. Consumer LSI devices digital ICs. Dusseldorf: NEC Electronics Europe, 1991.

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J, Buschow K. H., Long Gary J. 1941-, Grandjean Fernande 1947 e NATO Advanced Study Institute on High Density Digital Recording (1992 : Castelvecchio Pascoli, Italy), a cura di. High density digital recording. Dordrecht: Kluwer Academic, 1993.

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5

A, Miller Michael. Digital devices and systems with PLD applications. Albany: Delmar Publishers, 1997.

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Digital designing with programmable logic devices. Upper Saddle River, NJ: Prentice Hall, 1997.

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Bobyr', Maksim, Vitaliy Titov e Vladimir Ivanov. Design of analog and digital devices. ru: INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/1070341.

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The textbook contains the material necessary for the formation of students ' knowledge of the basics of analog and digital circuitry and the principles of building digital nodes, instilling skills in the development and design of digital devices, as well as performing practical work and a course project in the discipline "electrical Engineering, electronics and circuit engineering". Methods of calculation of analog circuits and synthesis of discrete devices of combinational type and automata with memory are considered. Examples of calculation of analog circuits and implementation of digital devices for various purposes on integrated circuits are given. Meets the requirements of Federal state educational standards of higher education of the latest generation. For students of higher education institutions studying in the field of training 09.03.01 "computer Science and engineering". It can be useful for students of the areas of training "Design and technology of electronic means", "Biotechnical systems and technologies"and" Information security".

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Adamski, Marian, Alexander Barkalov e Marek Węgrzyn, a cura di. Design of Digital Systems and Devices. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17545-9.

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Bachrach, Daniel G., e Eric J. Rzeszut. 10 Don’ts on Your Digital Devices. Berkeley, CA: Apress, 2014. http://dx.doi.org/10.1007/978-1-4842-0367-5.

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Colloquium on Digital Signal Processing Devices (1987 London). Colloquium on "Digital Signal Processing Devices". London: Institution of Electrical Engineers Computing and Control Division, 1987.

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Capitoli di libri sul tema "Digital devices"

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Knox, Hannah. "Digital devices". In Lineages and Advancements in Material Culture Studies, 102–14. Abingdon, Oxon; New York, NY: Routledge, 2020.: Routledge, 2020. http://dx.doi.org/10.4324/9781003085867-8.

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Medoff, Norman J., e Barbara K. Kaye. "Digital Devices". In Now Media: The Evolution of Electronic Communication, 183–210. 4^a ed. Other titles: Electronic media Description: Fourth edition. | London; New York : Routledge, 2021.: Routledge, 2021. http://dx.doi.org/10.4324/9781003020721-7.

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Kruse Brandão, Tanja, e Gerd Wolfram. "Personal Mobile Devices". In Digital Connection, 129–55. Wiesbaden: Springer Fachmedien Wiesbaden, 2018. http://dx.doi.org/10.1007/978-3-658-18759-0_5.

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Schüll, Natasha. "Devices and selves". In Digital Anthropology, 137–56. 2^a ed. Second edition. | Abingdon, Oxon ; New York, NY : Routledge, 2021. | Revised edition of: Digital anthropology / edited by Heather A. Horst and Daniel Miller. London ; New York : Berg, 2012.: Routledge, 2021. http://dx.doi.org/10.4324/9781003087885-10.

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Hayakawa, Hisao, e Seigo Kotani. "Josephson Digital Devices". In Compound and Josephson High-Speed Devices, 255–95. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4757-9774-9_8.

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Dvornikov, Sergey Viktorovich, Alexander Fedotovich Kryachko, Igor Anatolyevich Velmisov e Dmitry Alexandrovich Zatuchny. "Digital Radio Devices". In Amplifiers in Radio Receivers, 227–49. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-6215-8_10.

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Abbas, Karim. "Devices". In Handbook of Digital CMOS Technology, Circuits, and Systems, 1–79. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-37195-1_1.

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Shur, Michael. "GaAs Digital Integrated Circuits". In GaAs Devices and Circuits, 431–511. Boston, MA: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4899-1989-2_9.

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Ebong, Idongesit, e Pinaki Mazumder. "Memristor Digital Memory". In Neuromorphic Circuits for Nanoscale Devices, 95–116. New York: River Publishers, 2022. http://dx.doi.org/10.1201/9781003338918-3.

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Kuznekoff, Jeffrey H., Stevie M. Munz e Scott Titsworth. "Digital Inequality and Digital Literacy Skills". In Mobile Devices and Technology in Higher Education, 24–34. New York, NY: Routledge, 2020: Routledge, 2019. http://dx.doi.org/10.4324/9780429355097-4.

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Atti di convegni sul tema "Digital devices"

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Wischermann, Gerhard R. "Digital Interface Devices". In SMPTE Television Conference. IEEE, 1988. http://dx.doi.org/10.5594/m00528.

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Heffernan, Kayla J., Frank Vetere, Lauren M. Britton, Bryan Semaan e Thecla Schiphorst. "Insertable Digital Devices". In DIS '16: Designing Interactive Systems Conference 2016. New York, NY, USA: ACM, 2016. http://dx.doi.org/10.1145/2908805.2913026.

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Malenko, Maja, e Marcel Baunach. "Device Driver and System Call Isolation in Embedded Devices". In 2019 22nd Euromicro Conference on Digital System Design (DSD). IEEE, 2019. http://dx.doi.org/10.1109/dsd.2019.00049.

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Pozzebon, Alessandro, e Silvia Calamai. "Smart devices for Intangible Cultural Heritage fruition". In 2015 Digital Heritage. IEEE, 2015. http://dx.doi.org/10.1109/digitalheritage.2015.7413895.

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Egorov, Valentin M. "Optical digital integrated computing devices". In International Conference on Optoelectronic Science and Engineering '90. SPIE, 2017. http://dx.doi.org/10.1117/12.2294891.

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Girnyk, Vladimir I., Igor V. Tverdokhleb e Andrey A. Ivanovsky. "Combined optical/digital security devices". In Electronic Imaging, a cura di Rudolf L. van Renesse e Willem A. Vliegenthart. SPIE, 2000. http://dx.doi.org/10.1117/12.382203.

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Whitbread, Neil D., Andrew J. Ward, Lalitha Ponnampalam e David J. Robbins. "Digital wavelength-selected DBR laser". In Integrated Optoelectronics Devices, a cura di Claire F. Gmachl e David P. Bour. SPIE, 2003. http://dx.doi.org/10.1117/12.480189.

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Scott-Murrell, Emrys, David Lanza e Michael J. Schertzer. "Impedimetric Feedback in Particle Laden Digital Microfluidic Devices". In ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/icnmm2015-48494.

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Impedimetric measurement methods are a novel approach to the characterization of fluid in biological applications. Lab on a chip (LOAC) technologies could be combined with impedimetrics to benefit these applications. LOAC devices are currently being developed to pursue the miniaturization of larger scale processes. Current research shows great flexibility in using LOAC devices to reproduce biological processes such as those used in medical diagnostic applications. With a smaller form factor, testing that generally requires off-site lab usage can be deployed at the point-of-care. LOAC devices also have the potential to lower operating costs by reducing reagent volumes, labor costs, and cycle times. Digital microfluidic devices (DMF) are one promising LOAC platform. These devices manipulate discrete droplets of fluid using electric fields. As such, DMF devices can create, move, merge, and mix droplets while eliminating mechanical components like channels, pumps, and valves. Manipulation of discrete volumes over a planar array of electrodes allows for the possibility of highly flexible, reconfigurable devices. Addressable positions on a DMF device have conductive planes above and below the droplets which form a parallel plate capacitor. Using this principle, the electrical properties of the system can be measured in the same circuit that is used for droplet manipulation, removing the need for additional sensing components. This research tests the hypothesis that the impedance of a particle laden droplet in a DMF device can be modelled using an equivalent circuit model for particles that span more than half the gap height. The fundamental understanding gained increases sensitivity in impedimetric measurements, and can also be used for DMF applications in medical diagnostics, cell manipulation and observation, and condition based maintenance. This research presents an analytical model based on an equivalent circuit of a particle laden droplet. The proposed model predicts that droplet impedance is a function of device geometry, particle size, particle concentration, and the electrical properties of the particles and the surrounding medium.

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Allaria, Enrico, Stefano Brugioni, Sergio De Nicola, Pietro Ferraro, Simonetta Grilli e Riccardo Meucci. "Infrared digital holography". In Photonics, Devices, and Systems II, a cura di Miroslav Hrabovsky, Dagmar Senderakova e Pavel Tomanek. SPIE, 2003. http://dx.doi.org/10.1117/12.498515.

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Pan, Z., Junyi Wang e Yi Weng. "Investigation of Digital-to-Analog Converter (DAC) in Digital Nyquist-WDM Transmission Systems". In Optoelectronic Devices and Integration. Washington, D.C.: OSA, 2015. http://dx.doi.org/10.1364/oedi.2015.ot2c.1.

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Rapporti di organizzazioni sul tema "Digital devices"

1

Mazumder, Pinaki, George I. Haddad e Jack R. East. NDR Devices and their Digital Applications. Fort Belvoir, VA: Defense Technical Information Center, agosto 2000. http://dx.doi.org/10.21236/ada387626.

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2

Averin, D. V. Semiconductor Single-Electron Digital Devices and Circuits. Fort Belvoir, VA: Defense Technical Information Center, giugno 1993. http://dx.doi.org/10.21236/ada278338.

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3

Wang, Kang L. Low Power Multifunctionality Optoelectronic Devices for Mobile Digital Battlefield. Fort Belvoir, VA: Defense Technical Information Center, marzo 2002. http://dx.doi.org/10.21236/ada414237.

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4

Faith, Becky, Kevin Hernandez e James Beecher. Digital Poverty in the UK. Institute of Development Studies, agosto 2022. http://dx.doi.org/10.19088/ids.2022.057.

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As every aspect of life – from job seeking to health care – moves online, digital connectivity is a daily necessity, not a luxury. Against the backdrop of the UK’s worst cost of living crisis in 40 years, discussions about fuel and food poverty are now joined by a new concern with what has become known as digital poverty – challenges affording the cost of online connectivity and devices. Using data from a survey of low-income households, this Policy Briefing explores the extent of digital poverty in the UK and shows how it can exacerbate other forms of poverty among the most disadvantaged households. It also shows how current fixes, including social tariffs aimed at the poorest in society, are not effectively addressing this critical issue.

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Schafer, Ronald W. Multidimensional Digital Signal Processing Optical Devices for Information Processing and Electromagnetic Analysis and Measurement. Fort Belvoir, VA: Defense Technical Information Center, luglio 1996. http://dx.doi.org/10.21236/ada384663.

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6

Keller-Glaze, Heidi, Jeff Horey, Kenny Nicely, Robert Brusso, Marisa M. Nihill e M. G. Cobb. A Practical Decision Guide for Integrating Digital Applications and Handheld Devices into Advanced Individual Training. Fort Belvoir, VA: Defense Technical Information Center, luglio 2013. http://dx.doi.org/10.21236/ada587623.

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Aimone, James, Christopher Bennett, Suma Cardwell, Ryan Dellana e Tianyao Xiao. Mosaic The Best of Both Worlds: Analog devices with Digital Spiking Communication to build a Hybrid Neural Network Accelerator. Office of Scientific and Technical Information (OSTI), settembre 2020. http://dx.doi.org/10.2172/1673175.

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8

Iatsyshyn, Anna V., Iryna H. Hubeladze, Valeriia O. Kovach, Valentyna V. Kovalenko, Volodymyr O. Artemchuk, Maryna S. Dvornyk, Oleksandr O. Popov, Andrii V. Iatsyshyn e Arnold E. Kiv. Applying digital technologies for work management of young scientists' councils. [б. в.], giugno 2021. http://dx.doi.org/10.31812/123456789/4434.

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The publication explores the features of the digital technologies’ usage to organize the work of the Young Scientists’ Councils and describes the best practices. The digital transformation of society and the quarantine restrictions caused by the COVID-19 pandemic have forced the use of various digital technologies for scientific communication, the organization of work for youth associations, and the training of students and Ph.D. students. An important role in increasing the prestige of scientific activity and encouraging talented young people to participate in scientific projects belongs to the Young Scientists’ Councils, which are created at scientific institutions and higher education institutions. It is determined that the peculiarities of the work of Young Scientists’ Councils are in providing conditions for further staff development of the institution in which they operate; contribution to the social, psychological and material support of young scientists and Ph.D. students; creating an environment for teamwork and collaborative partnership; development of leadership and organizational qualities; contribution to the development of digital competence. The advantages of using electronic social networks in higher education and research institutions are analyzed, namely: general popularity and free of charge; prompt exchange of messages and multimedia data; user-friendly interface; availability of event planning functions, sending invitations, setting reminders; support of synchronous and asynchronous communication between network participants; possibility of access from various devices; a powerful tool for organizing the learning process; possibility of organization and work of closed and open groups; advertising of various events, etc. Peculiarities of managing the activity of the Young Scientists’ Council with the use of digital technologies are determined. The Young Scientists’ Council is a social system, and therefore the management of this system refers to social management. The effectiveness of the digital technologies’ usage to manage the activities of the Young Scientists’ Council depends on the intensity and need for their use to implement organizational, presentation functions and to ensure constant communication. The areas to apply digital technologies for the work managing of Young Scientists’ Councils are sorted as the presentation of activity; distribution of various information for young scientists; conducting questionnaires, surveys; organization and holding of scientific mass events; managing of thematic workgroups, holding of work meetings. It is generalized and described the experience of electronic social networks usage for organizing and conducting of scientific mass events.

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Marshall, Amber, Krystle Turner, Carol Richards, Marcus Foth, Michael Dezuanni e Tim Neale. A case study of human factors of digital AgTech adoption: Condamine Plains, Darling Downs. Queensland University of Technology, dicembre 2021. http://dx.doi.org/10.5204/rep.eprints.227177.

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As global agricultural production methods and supply chains have become more digitised, farmers around the world are adopting digital AgTech such as drones, Internet of Things (IoT), remote sensors, blockchain, and satellite imagery to inform their on-farm decision-making. While early adopters and technology advocates globally are spruiking and realising the benefits of digital AgTech, many Australian farmers are reluctant or unable to participate fully in the digital economy. This is an important issue, as the Australian Government has said that digital farming is essential to meeting its target of agriculture being a $100billion industry by 2030. Most studies of AgTech adoption focus on individual-level barriers, yielding well-documented issues such as access to digital connectivity, availability of AgTech suppliers, non-use of ICTs, and cost-benefit for farmers. In contrast, our project took an ‘ecosystems’ approach to study cotton farmers in the Darling Downs region in Queensland, Australia who are installing water sensors, satellite imagery, and IoT plant probes to generate data to be aggregated on a dashboard to inform decision-making. We asked our farmers to map their local ecosystem, and then set up interviewing different stakeholders (such technology providers, agronomists, and suppliers) to understand how community-level orientations to digital agriculture enabled and constrained on-farm adoption. We identified human factors of digital AgTech adoption at the macro, regional and farm levels, with a pronounced ‘data divide’ between farm and community level stakeholders within the ecosystem. This ‘data divide’ is characterised by a capability gap between the provision of the devices and software that generate data by technology companies, and the ability of farmers to manage, implement, use, and maintain them effectively and independently. In the Condamine Plains project, farmers were willing and determined to learn new, advanced digital and data literacy skills. Other farmers in different circumstances may not see value in such an undertaking or have the necessary support to take full advantage of the technologies once they are implemented. Moreover, there did not seem to be a willingness or capacity in the rest of the ecosystem to fill this gap. The work raises questions about the type and level of new, digital expertise farmers need to attain in the transition to digital farming, and what interventions are necessary to address the significant barriers to adoption and effective use that remain in rural communities. By holistically considering how macro- and micro-level factors may be combined with community-level influences, this study provides a more complete and holistic account of the contextualised factors that drive or undermine digital AgTech adoption on farms in rural communities. This report provides insights and evidence to inform strategies for rural ecosystems to transition farms to meet the requirements and opportunities of Agriculture 4.0 in Australia and abroad.

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Rathinam, Francis, P. Thissen e M. Gaarder. Using big data for impact evaluations. Centre of Excellence for Development Impact and Learning (CEDIL), febbraio 2021. http://dx.doi.org/10.51744/cmb2.

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The amount of big data available has exploded with recent innovations in satellites, sensors, mobile devices, call detail records, social media applications, and digital business records. Big data offers great potential for examining whether programmes and policies work, particularly in contexts where traditional methods of data collection are challenging. During pandemics, conflicts, and humanitarian emergency situations, data collection can be challenging or even impossible. This CEDIL Methods Brief takes a step-by-step, practical approach to guide researchers designing impact evaluations based on big data. This brief is based on the CEDIL Methods Working Paper on ‘Using big data for evaluating development outcomes: a systematic map’.

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