Academic literature on the topic 'Digital transmission'

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Journal articles on the topic "Digital transmission"

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Rajagopalan, S. K. "Digital Transmission Techniques." IETE Journal of Education 33, no. 1 (January 1992): 3–11. http://dx.doi.org/10.1080/09747338.1992.11436349.

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Krstić, D. "Digital Transmission Engineering." Microelectronics Journal 31, no. 6 (June 2000): 475–76. http://dx.doi.org/10.1016/s0026-2692(00)00019-7.

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Ishida, Jun-ichi. "Digital television (8); Digital signal transmission." Journal of the Institute of Television Engineers of Japan 39, no. 9 (1985): 822–31. http://dx.doi.org/10.3169/itej1978.39.822.

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Wakamori, Kazuhiko, Takeshi Hayashi, Kunihiro Kitamura, Kenichi Kanda, Keigo Majima, and Yoshiharu Hoshino. "Digital Transmission. Development of a Digital Optical FPU." Journal of the Institute of Image Information and Television Engineers 52, no. 11 (1998): 1630–36. http://dx.doi.org/10.3169/itej.52.1630.

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Sarumi, J. A. "An Android-Based Image Steganography System for Concealing Data and Information Transmission Using Adaptive Image Steganography." Advances in Multidisciplinary and scientific Research Journal Publication 9, no. 2 (June 30, 2021): 19–38. http://dx.doi.org/10.22624/aims/digital/v9n2p6.

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The growth in the volume of information transmission and transaction over the internet has necessitated the development and enhancement of measures and techniques required to ensure the safety of critical information during transmission. with developments in mobile technologies and the adoption and diffusion of android mobile devices, research must therefore continue to explore more secured media in which information can be hidden. One of such medium is the use of image carriers referred to as steganography. In tis paper, we provide insughts into the development of an android-based Image Steganography System for concealing data and information using adaptive image steganography. The Least Significant Bit (LSB) algorithm was employed as the algorithmic sequence for the development. Preliminary results from implementation and testing showed promising results Keywords: Android, image steganography, data, information, transmission, images, security
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Sahota, Komal. "Digital Transmission in Computer Network." Journal of Analog and Digital Communications 7, no. 2 (August 23, 2022): 8–12. http://dx.doi.org/10.46610/joadc.2022.v07i02.002.

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A type of signal transmission known as "digital transmission" involves the discrete time variation of two values, one of which represents the binary number "0" and the other "1." Voltage or electrical potential is often the variable amount in copper cabling. Fiber-optic wiring or wireless communication use variations in intensity or any other physical quantity. Digital signals use discrete values to transmit binary data through a communication path like a network cable or a telecommunications link. On a serial transmission line, a digital signal is transmitted one bit at a time. Analog and digital methods can both be used to store data or information. On a serial transmission line, a digital signal is transmitted one bit at a time. Analog and digital methods can both be used to store data or information.
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Balsa, Jose, Tomás Domínguez-Bolano, Óscar Fresnedo, José A. García-Naya, and Luis Castedo. "Image Transmission: Analog or Digital?" Proceedings 2, no. 18 (September 18, 2018): 1163. http://dx.doi.org/10.3390/proceedings2181163.

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Vicencio-Silva, Maria Alicia. "Book Review: Digital Transmission Theory." International Journal of Electrical Engineering & Education 25, no. 3 (July 1988): 287–88. http://dx.doi.org/10.1177/002072098802500334.

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Ghassemlooy, Z. "Book Review: Digital Transmission Theory." International Journal of Electrical Engineering & Education 29, no. 3 (July 1992): 284. http://dx.doi.org/10.1177/002072099202900327.

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Simpson, Robert J. "Book Review: Digital Signal Transmission." International Journal of Electrical Engineering & Education 30, no. 3 (July 1993): 279. http://dx.doi.org/10.1177/002072099303000317.

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Dissertations / Theses on the topic "Digital transmission"

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Caldwell, Niall James. "Digital Displacement hydrostatic transmission systems." Thesis, University of Edinburgh, 2007. http://hdl.handle.net/1842/27735.

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Digital Displacement pumps and motors are a new type of hydraulic machine, in which fluid commutation and displacement control are achieved by solenoid actuated valves under the command of a microprocessor, rather than mechanical means. The thesis is that radial piston machines, built according to this principle, offer energy efficiency and control advantages over variable stroke axial piston pumps, when applied to hydrostatic vehicle transmissions. Experimental results on the efficiency of prototypes are analysed and compared to published results from swashplate machines, showing an improvement in energy efficiency. Loss models are proposed and compared with experiment. A Digital Displacement motor suitable for propelling a vehicle is described and the design and development of the mechanics, electro-magnetics and embedded software are described. Experimental results are also presented, illustrating the performance of a demonstrator vehicle driven by the motor, in particular demonstrating the closed-loop regulation of vehicle speed using motor displacement control. A demonstrator vehicle is described which features a hydrostatic transmission using both a Digital Displacement pump and an axial piston motor. Experimental results of pump performance are presented with specific focus on vehicle propel. A control technique is described which increases the sensitivity of the pump at low speeds. Results are presented of tests on the prototype transmission system, focussing on the time-domain system dynamics. A computer simulation model of the vehicle is presented and results compared to experiment.
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Tan, B. T. "Digital transmission using transform techniques." Thesis, University of Cambridge, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384556.

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He, Wei. "Adaptive-rate digital speech transmission." Thesis, University of Warwick, 1993. http://wrap.warwick.ac.uk/104723/.

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Moore, Philip John. "Adaptive digital distance protection." Thesis, City University London, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328244.

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Wu, Kuang-Tsan. "On spectrally efficient digital transmission systems." Thesis, University of Ottawa (Canada), 1986. http://hdl.handle.net/10393/5408.

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Wang, Li. "TDMA digital mobile radio transmission system." Thesis, University of Liverpool, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240335.

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Zammit, Saviour. "Digital video transmission over wireless networks." Thesis, Aston University, 1995. http://publications.aston.ac.uk/8058/.

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The advent of the Integrated Services Digital Network (ISDN) led to the standardisation of the first video codecs for interpersonal video communications, followed closely by the development of standards for the compression, storage and distribution of digital video in the PC environment, mainly targeted at CD-ROM storage. At the same time the second-generation digital wireless networks, and the third-generation networks being developed, have enough bandwidth to support digital video services. The radio propagation medium is a difficult environment in which to deploy low bit error rate, real time services such as video. The video coding standards designed for ISDN and storage applications, were targeted at low bit error rate levels, orders of magnitude lower than the typical bit error rates experienced on wireless networks. This thesis is concerned with the transmission of digital, compressed video over wireless networks. It investigates the behaviour of motion compensated, hybrid interframe DPCM/DCT video coding algorithms, which form the basis of current coding algorithms, in the presence of high bit error rates commonly found on digital wireless networks. A group of video codecs, based on the ITU-T H.261 standard, are developed which are robust to the burst errors experienced on radio channels. The radio link is simulated at low level, to generate typical error files that closely model real world situations, in a Rayleigh fading environment perturbed by co-channel interference, and on frequency selective channels which introduce inter symbol interference. Typical anti-multipath techniques, such as antenna diversity, are deployed to mitigate the effects of the channel. Link layer error control techniques are also investigated.
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Han, Yu. "Optimization of Modulation Constrained Digital Transmission Systems." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37097.

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The regular waterfilling(WF) policy maximizes the mutual information of parallel channels, when the inputs are Gaussian. However, Gaussian input is ideal, which does not exist in reality. Discrete constellations are usually used instead, such as $ M $-PAM and $ M $-QAM. As a result, the mercury/waterfilling (MWF) policy is introduced, which is a generalization of the regular WF. The MWF applies to inputs with arbitrary distributions, while the regular WF only applies to Gaussian inputs. The MWF-based optimal power allocation (OPA) is presented, for which an algorithm called the internal/external bisection method is introduced. The constellation-constrained capacity is discussed in the thesis, where explicit expressions are presented. The expression contains an integral, which does not have a closed-form solution. However, it can be evaluated via the Monte Carlo method. An approximation of the constellation-constrained capacity based on the sphere packing method is introduced, whose OPA is a convex optimization problem. The CVX was used initially, but it did not generate satisfactory results. Therefore, the bisection method is used instead. Capacities of the MWF and its sphere packing approximation are evaluated for various cases, and compared with each other. It turns out the sphere packing approximation has similar performances to the MWF, which validates the approximation. Unlike the MWF, the sphere packing approximation does not suffer from the loss of precision due to the structure of MMSE functions, which demonstrates its robustness.
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Hans, Mathieu Claude. "Optimization of digital audio for Internet transmission." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/14894.

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Muhson, Said A. "Digital data transmission over mobile radio channels." Thesis, Loughborough University, 1987. https://dspace.lboro.ac.uk/2134/10838.

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The aim of this work is to study data transmission over a microwave digital mobile radio channel at 900 MHz, where the channel is subjected to multipath fading. Besides the fading, the other impairments assumed here are additive noise, co-channel interference and adjacent channel interference. Two modulation techniques are investigated in this work, namely Quadrature-Amplitude-Modulation (QAM) and Quadrature-Phase-Shift- Keying (QPSK). The channel is characterised digitally, assuming multipath Rayleigh fading in the presence of noise. The detection process studied here are near-maximum likelihood schemes: non-linear equalisation methods are also considered in detail. The thesis is also concerned with carrier synchronisation and channel estimation under conditions of Rayleigh fading. Since the carrier syncn,honisation is a most important requirement in mobile radio, a Digital Phase Locked Loop (DPLL) technique has been designed and investigated in the form of a feedback digital synchronisation system. Two types of channel estimation technique, namely feedforward and feedback estimators, are also investigated in this work. The feedback estimator is modified by the addition of a digital control system, in order to reduce its delay, and to cope with rapidly fading signals. Successful carrier synchronisation is demonstrated by the use of space diversity. The study was completed using models of the component parts of the system, and by the use of extensive computer simulations to analyse the system under various operating conditions.
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Books on the topic "Digital transmission"

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Guimaraes, Dayan Adionel. Digital Transmission. New York: Springer, 2010.

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Guimaraes, Dayan Adionel. Digital Transmission. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01359-1.

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1944-, Jones Edwin, ed. Digital transmission. London: McGraw-Hill, 1993.

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Hart, Bryan. Digital Signal Transmission. Boston, MA: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4615-9707-0.

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Anderson, John B. Digital Transmission Engineering. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2005. http://dx.doi.org/10.1002/0471733660.

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Anderson, John B. Digital Transmission Engineering. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2005. http://dx.doi.org/10.1002/0471733660.

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Smith, David R. Digital Transmission Systems. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4757-1185-1.

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Smith, David R. Digital Transmission Systems. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/978-1-4419-8933-8.

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Digital transmission systems. New York: Van Nostrand Reinhold, 1985.

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Digital transmission engineering. 2nd ed. Piscataway, N.J: Wiley-Interscience, IEEE Press, 2005.

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Book chapters on the topic "Digital transmission"

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Keiser, Bernhard E., and Eugene Strange. "Digital Transmission." In Digital Telephony and Network Integration, 159–210. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1787-0_6.

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Keiser, Bernhard E., and Eugene Strange. "Digital Transmission." In Digital Telephony and Network Integration, 122–64. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-015-7177-7_6.

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Teixeira, Marvi, and Viktor Zaharov. "Digital Transmission." In Handbook of Computer Networks, 84–101. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118256053.ch7.

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Weik, Martin H. "digital transmission." In Computer Science and Communications Dictionary, 414. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_5068.

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Ananasso, F., R. Crescimbeni, G. Gallinaro, and S. Tirró. "Digital Transmission." In Satellite Communication Systems Design, 417–552. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-3006-0_11.

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Guimarães, Dayan Adionel. "A Review of Probability and Stochastic Processes." In Digital Transmission, 1–85. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01359-1_1.

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Guimarães, Dayan Adionel. "Signals and Systems." In Digital Transmission, 87–169. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01359-1_2.

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Guimarães, Dayan Adionel. "Communication Channels." In Digital Transmission, 171–263. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01359-1_3.

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Guimarães, Dayan Adionel. "Baseband Digital Transmission." In Digital Transmission, 265–359. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01359-1_4.

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Guimarães, Dayan Adionel. "Signal-Space Analysis." In Digital Transmission, 361–409. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01359-1_5.

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Conference papers on the topic "Digital transmission"

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Kikuchi, Kazuro. "Digital coherent transmission." In 2012 Opto-Electronics and Communications Conference (OECC). IEEE, 2012. http://dx.doi.org/10.1109/oecc.2012.6276518.

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Noé, R., S. Hoffmann, C. Wördehoff, and M. El-Darawy. "Digital Coherent Transmission Systems." In Signal Processing in Photonic Communications. Washington, D.C.: OSA, 2010. http://dx.doi.org/10.1364/sppcom.2010.spwa1.

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Garinto, Dodi. "On Digital Power Transmission Systems." In 2019 International Conference on Technologies and Policies in Electric Power & Energy. IEEE, 2019. http://dx.doi.org/10.1109/ieeeconf48524.2019.9102531.

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Lin, Sheng-Wei, and WenThong Chang. "Multiresolution coding for digital transmission." In Visual Communications '93, edited by Barry G. Haskell and Hsueh-Ming Hang. SPIE, 1993. http://dx.doi.org/10.1117/12.157932.

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Goldsmith, B. J. "Digital video distribution and transmission." In International Broadcasting Convention (IBC). IEE, 1996. http://dx.doi.org/10.1049/cp:19960777.

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Murata, N., F. Ukigaya, Y. Eto, N. Sakuraba, and T. Delp. "Digital Triaxial Transmission Provides Total Digital Studio Camera System." In SMPTE Technical Conference. IEEE, 1995. http://dx.doi.org/10.5594/m00476.

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Ayello, Francois, Guanlan Liu, Yonghe Yang, and Ning Cui. "Probabilistic Digital Twins for Transmission Pipelines." In 2020 13th International Pipeline Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ipc2020-9240.

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Abstract Digitalization in the oil and gas industry has led to the formation of digital twins. Digital twins bring closer the physical and virtual world as data is transmitted seamlessly between real time sensors, databases and models. The strength of the digital twin concept is the interconnectivity of data and models. Any model can use any combination of inputs (e.g. operator owned data sets and sensors, third-party databases such as soil composition or weather data, results from other models such as flow assurance, threat modelling or risk modelling). Consequently, the result of one model may become the input of another. This strength is also a weakness, as uncertain (or missing data) will lead to a great source of uncertainty and may lead to wrong results. Worst case scenarios have been used to solve this issue without success. This paper presents a new concept: probabilistic digital twins for pipelines. Probabilistic digital twins do not lose uncertainty as results pass from one model to another, thus providing greater confidence in the final results. This publication reviews the probabilistic digital twin concept and demonstrates how it can be implemented using gas pipeline data from West Pipeline Company, CNPC.
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Pedersen, Niels H., Per Johansen, and Torben O. Andersen. "LQR Feedback Control Development for Wind Turbines Featuring a Digital Fluid Power Transmission System." In 9th FPNI Ph.D. Symposium on Fluid Power. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/fpni2016-1537.

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Research within digital fluid power (DFP) transmissions is receiving an increased attention as an alternative to conventional transmission technologies. The use of DFP displacement machines entails a need for applicable control algorithms. However, the design and analysis of controllers for such digital systems are complicated by its non-smooth behavior. In this paper a control design approach for a digital displacement machine® is proposed and a performance analysis of a wind turbine using a DFP transmission is presented. The performance evaluation is based on a dynamic model of the transmission with a DFP motor, which has been combined with the NREL 5-MW reference wind turbine model. A classical variable speed control strategy for wind speeds below rated is proposed for the turbine, where the pump displacement is fixed and the digital motor displacement is varied for pressure control. The digital motor control strategy consists of a full stroke operation strategy, where a Delta-Sigma pulse density modulator is used to determine the chamber activation sequence. In the LQR-control design approach, the discrete behavior of the motor and Delta-Sigma modulator is described by a discrete linear time invariant model. Using full-field flow wind profiles as input, the design approach and control performance is verified by simulation in the dynamic model of the wind turbine featuring the DFP transmission. Additionally, the performance is compared to that of the conventional NREL reference turbine, transmission and controller.
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Reynolds, Keith Y. "Digital Video and Audio Transmission Alternatives." In SMPTE Technical Conference. IEEE, 1995. http://dx.doi.org/10.5594/m00487.

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Che, Haitao, Shijie Zhuang, Jiang Lianbo, Hong Hao, and Zhang Hongbing. "Design of wireless transmission digital thermometer." In the 2011 International Conference. New York, New York, USA: ACM Press, 2011. http://dx.doi.org/10.1145/2071639.2071643.

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Reports on the topic "Digital transmission"

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Smith, A. T., and W. Rivers. Solutions for Digital Video Transmission Technology Final Report CRADA No. TC02068.0. Office of Scientific and Technical Information (OSTI), September 2017. http://dx.doi.org/10.2172/1396230.

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Thakore, D. Transport Layer Security (TLS) Authorization Using Digital Transmission Content Protection (DTCP) Certificates. RFC Editor, July 2015. http://dx.doi.org/10.17487/rfc7562.

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Gray, Robert M. Compression and Classification of Digital Mammograms for Storage, Transmission, and Computer Aided Screening. Fort Belvoir, VA: Defense Technical Information Center, March 1997. http://dx.doi.org/10.21236/ada327151.

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Bristow, Q. A system for the digital transmission and recording of induced polarization measurements in boreholes. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1986. http://dx.doi.org/10.4095/123611.

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Mariager, P., Z. Shelby, M. Van de Logt, and D. Barthel. Transmission of IPv6 Packets over Digital Enhanced Cordless Telecommunications (DECT) Ultra Low Energy (ULE). Edited by J. Petersen. RFC Editor, May 2017. http://dx.doi.org/10.17487/rfc8105.

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Lee, Timothy C., and Robert M. Proie. A Subthreshold Digital Library Using a Dynamic-Threshold Metal-Oxide Semiconductor (DTMOS) and Transmission Gate Logic. Fort Belvoir, VA: Defense Technical Information Center, September 2014. http://dx.doi.org/10.21236/ada608589.

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Martz, H., D. Chinn, and C. Pincus. Technical Advice and Support for the Joint Integrated Non-Intrusive Inspection (JINII) Program Task 2.2 Transmission Digital Radiography (DR). Office of Scientific and Technical Information (OSTI), March 2011. http://dx.doi.org/10.2172/1022925.

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Ndulu, Benno, Cornel Joseph, and Karline Tryphone. Fiscal Regimes and Digital Transformation in Sub-Saharan Africa. Digital Pathways at Oxford, March 2021. http://dx.doi.org/10.35489/bsg-dp-wp_2021/01.

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In this paper we investigate how the fiscal authorities, through tax policies or fiscal incentives, can play an important role in supporting digitalisation of the economy (digital transformation) to exploit its opportunities. Our approach is to track the influence of these policies indirectly through relevant determinants of internet adoption (connectivity and user enablers). Hence, we first establish empirically the influence of these enablers on internet use by estimating a reduced form equation of determinants of internet adoption (both demand- and supply-side factors). Then we assess the influence of a country’s fiscal policy stance on some of these enablers or determinants (direction and extent) throughout the internet value chain. Using these transmission mechanisms, we estimate the influence of the fiscal regime on digitalisation. We draw on our own empirical analysis and other relevant studies to support our recommendations to the fiscal authorities. Our findings emphasise the importance of trade-offs between short-term revenue objectives and the longer-term opportunity costs of higher revenue, enabled by the large positive externality effects of the sector, generating higher social returns than those accruing privately.
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Frisancho, Verónica, and Eric Parrado. International Remittances to Latin America and the Caribbean amid the COVID-19 Crisis: A Push for Digitalization? Inter-American Development Bank, December 2021. http://dx.doi.org/10.18235/0003874.

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Remittances constitute a significant safety net for millions of households in Latin America and the Caribbean (LAC). Consequently, changes in international transfers can be a crucial agent of transmission of the COVID-19 induced economic crisis from richer to poorer nations and from urban to rural areas. Relying on data on queries to the search engine Google between December 2018 and July 2021, this study looks at the evolution of demand for in-person versus digital international transfer services and evaluates if take-up rates of different types of service providers trace the initial drop and subsequent rebound of remittances. The recovery of remittances was accompanied by a modest and temporary increase in the interest in digital mechanisms for sending money to home countries, which is accompanied by lower demand for brick-and-mortar service providers.
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Candell, Richard. Industrial Wireless Deployments in the Navy Shipyard. Gaithersburg, MD: National Institute of Standards and Technology, 2020. http://dx.doi.org/10.6028/nist.ams.300-9.

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The National Institute of Standards and Technology (NIST) and the Office of Naval Research (ONR) have partnered to investigate the application of digital manufacturing methods and technologies within the navy shipyard. As a part of the effort, wireless network deployments are considered. This report provides an overview of the wireless networking requirements of navy shipyards specifically for the transmission of machine information outside and inside of the vessel during construction. Recommended approaches are included with each use case. This report is intended to provide the reader with direction to other larger resources and documentation provided by NIST
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