WorldWideScience

Sample records for digital receiver technology

  1. Fast digitization and digital receiver technology

    International Nuclear Information System (INIS)

    Kimball, Ralph C.

    2002-01-01

    The potentially lucrative wireless market has led to technological advances in mixed signal devices such as high speed, high resolution A/D and D/A converters. This same market has also driven the development of high performance multi-channel digital receiver and digital transmitter ICs. Similarly, advances in semiconductor processes, coupled with the need for reduced time-to-market, has led to the development of large, enhanced performance, in-circuit programmable logic devices. A review of the key characteristics of these mixed-signal, signal processing and programmable logic devices is presented. The application of these devices and technologies to the instrumentation of Accelerators and Storage Rings is discussed and presented by way of examples. Issues relating to the requirements associated with real-time processing, I/O throughput, reconfigurability, reliability, maintainability and packaging requirements are also addressed

  2. A BUNCH TO BUCKET PHASE DETECTOR USING DIGITAL RECEIVER TECHNOLOGY

    International Nuclear Information System (INIS)

    DELONG, J.; BRENNAN, J.M.; HAYES, T.; LE, T.N.; SMITH, K.

    2003-01-01

    Transferring high-speed digital signals to a Digital Signal Processor is limited by the IO bandwidth of the DSP. A digital receiver circuit is used to translate high frequency W signals to base-band. The translated output frequency is close to DC and the data rate can be reduced, by decimation, before transfer to the DSP. By translating both the longitudinal beam (bunch) and RF cavity pick-ups (bucket) to DC, a DSP can be used to measure their relative phase angle. The result can be used as an error signal in a beam control servo loop and any phase differences can be compensated

  3. Fermilab Recycler Ring BPM Upgrade Based on Digital Receiver Technology

    Science.gov (United States)

    Webber, R.; Crisp, J.; Prieto, P.; Voy, D.; Briegel, C.; McClure, C.; West, R.; Pordes, S.; Mengel, M.

    2004-11-01

    Electronics for the 237 BPMs in the Fermilab Recycler Ring have been upgraded from a log-amplifier based system to a commercially produced digitizer-digital down converter based system. The hardware consists of a pre-amplifier connected to a split-plate BPM, an analog differential receiver-filter module and an 8-channel 80-MHz digital down converter VME board. The system produces position and intensity with a dynamic range of 30 dB and a resolution of ±10 microns. The position measurements are made on 2.5-MHz bunched beam and barrier buckets of the un-bunched beam. The digital receiver system operates in one of six different signal processing modes that include 2.5-MHz average, 2.5-MHz bunch-by-bunch, 2.5-MHz narrow band, unbunched average, un-bunched head/tail and 89-kHz narrow band. Receiver data is acquired on any of up to sixteen clock events related to Recycler beam transfers and other machine activities. Data from the digital receiver board are transferred to the front-end CPU for position and intensity computation on an on-demand basis through the VME bus. Data buffers are maintained for each of the acquisition events and support flash, closed orbit and turn-by-turn measurements. A calibration system provides evaluation of the BPM signal path and application programs.

  4. Digital Receiver Phase Meter

    Science.gov (United States)

    Marcin, Martin; Abramovici, Alexander

    2008-01-01

    The software of a commercially available digital radio receiver has been modified to make the receiver function as a two-channel low-noise phase meter. This phase meter is a prototype in the continuing development of a phase meter for a system in which radiofrequency (RF) signals in the two channels would be outputs of a spaceborne heterodyne laser interferometer for detecting gravitational waves. The frequencies of the signals could include a common Doppler-shift component of as much as 15 MHz. The phase meter is required to measure the relative phases of the signals in the two channels at a sampling rate of 10 Hz at a root power spectral density measurements in laser metrology of moving bodies. To illustrate part of the principle of operation of the phase meter, the figure includes a simplified block diagram of a basic singlechannel digital receiver. The input RF signal is first fed to the input terminal of an analog-to-digital converter (ADC). To prevent aliasing errors in the ADC, the sampling rate must be at least twice the input signal frequency. The sampling rate of the ADC is governed by a sampling clock, which also drives a digital local oscillator (DLO), which is a direct digital frequency synthesizer. The DLO produces samples of sine and cosine signals at a programmed tuning frequency. The sine and cosine samples are mixed with (that is, multiplied by) the samples from the ADC, then low-pass filtered to obtain in-phase (I) and quadrature (Q) signal components. A digital signal processor (DSP) computes the ratio between the Q and I components, computes the phase of the RF signal (relative to that of the DLO signal) as the arctangent of this ratio, and then averages successive such phase values over a time interval specified by the user.

  5. Superconductor Digital-RF Receiver Systems

    Science.gov (United States)

    Mukhanov, Oleg A.; Kirichenko, Dmitri; Vernik, Igor V.; Filippov, Timur V.; Kirichenko, Alexander; Webber, Robert; Dotsenko, Vladimir; Talalaevskii, Andrei; Tang, Jia Cao; Sahu, Anubhav; Shevchenko, Pavel; Miller, Robert; Kaplan, Steven B.; Sarwana, Saad; Gupta, Deepnarayan

    Digital superconductor electronics has been experiencing rapid maturation with the emergence of smaller-scale, lower-cost communications applications which became the major technology drivers. These applications are primarily in the area of wireless communications, radar, and surveillance as well as in imaging and sensor systems. In these areas, the fundamental advantages of superconductivity translate into system benefits through novel Digital-RF architectures with direct digitization of wide band, high frequency radio frequency (RF) signals. At the same time the availability of relatively small 4K cryocoolers has lowered the foremost market barrier for cryogenically-cooled digital electronic systems. Recently, we have achieved a major breakthrough in the development, demonstration, and successful delivery of the cryocooled superconductor digital-RF receivers directly digitizing signals in a broad range from kilohertz to gigahertz. These essentially hybrid-technology systems combine a variety of superconductor and semiconductor technologies packaged with two-stage commercial cryocoolers: cryogenic Nb mixed-signal and digital circuits based on Rapid Single Flux Quantum (RSFQ) technology, room-temperature amplifiers, FPGA processing and control circuitry. The demonstrated cryocooled digital-RF systems are the world's first and fastest directly digitizing receivers operating with live satellite signals in X-band and performing signal acquisition in HF to L-band at ˜30GHz clock frequencies.

  6. Customizable Digital Receivers for Radar

    Science.gov (United States)

    Moller, Delwyn; Heavey, Brandon; Sadowy, Gregory

    2008-01-01

    Compact, highly customizable digital receivers are being developed for the system described in 'Radar Interferometer for Topographic Mapping of Glaciers and Ice Sheets' (NPO-43962), NASA Tech Briefs, Vol. 31, No. 7 (August 2007), page 72. The receivers are required to operate in unison, sampling radar returns received by the antenna elements in a digital beam-forming (DBF) mode. The design of these receivers could also be adapted to commercial radar systems. At the time of reporting the information for this article, there were no commercially available digital receivers capable of satisfying all of the operational requirements and compact enough to be mounted directly on the antenna elements. A provided figure depicts the overall system of which the digital receivers are parts. Each digital receiver includes an analog-to-digital converter (ADC), a demultiplexer (DMUX), and a field-programmable gate array (FPGA). The ADC effects 10-bit band-pass sampling of input signals having frequencies up to 3.5 GHz. The input samples are demultiplexed at a user-selectable rate of 1:2 or 1:4, then buffered in part of the FPGA that functions as a first-in/first-out (FIFO) memory. Another part of the FPGA serves as a controller for the ADC, DMUX, and FIFO memory and as an interface between (1) the rest of the receiver and (2) a front-panel data port (FPDP) bus, which is an industry-standard parallel data bus that has a high data-rate capability and multichannel configuration suitable for DBF. Still other parts of the FPGA in each receiver perform signal-processing functions. The digital receivers can be configured to operate in a stand-alone mode, or in a multichannel mode as needed for DBF. The customizability of the receiver makes it applicable to a broad range of system architectures. The capability for operation of receivers in either a stand-alone or a DBF mode enables the use of the receivers in an unprecedentedly wide variety of radar systems.

  7. Broadband direct RF digitization receivers

    CERN Document Server

    Jamin, Olivier

    2014-01-01

    This book discusses the trade-offs involved in designing direct RF digitization receivers for the radio frequency and digital signal processing domains.  A system-level framework is developed, quantifying the relevant impairments of the signal processing chain, through a comprehensive system-level analysis.  Special focus is given to noise analysis (thermal noise, quantization noise, saturation noise, signal-dependent noise), broadband non-linear distortion analysis, including the impact of the sampling strategy (low-pass, band-pass), analysis of time-interleaved ADC channel mismatches, sampling clock purity and digital channel selection. The system-level framework described is applied to the design of a cable multi-channel RF direct digitization receiver. An optimum RF signal conditioning, and some algorithms (automatic gain control loop, RF front-end amplitude equalization control loop) are used to relax the requirements of a 2.7GHz 11-bit ADC. A two-chip implementation is presented, using BiCMOS and 65nm...

  8. Anatomy of a digital coherent receiver

    DEFF Research Database (Denmark)

    Borkowski, Robert; Zibar, Darko; Tafur Monroy, Idelfonso

    2014-01-01

    , orthonormaliation, chromatic dispersion compensation/nonlinear compensation, resampling a nd timing recovery, polarization demultiplexing and equalization, frequency and phase recovery, digital demodulation. We also describe novel subsystems of a digital coherent receiver: modulation format recognition......Digital coherent receivers have gained significant attention in the last decade. The reason for this is that coherent detection, along with digital signal processing (DSP) allows for substantial increase of the channel capacity by employing advanced detection techniques. In this paper, we first...

  9. Digital Sensor Technology

    Energy Technology Data Exchange (ETDEWEB)

    Ted Quinn; Jerry Mauck; Richard Bockhorst; Ken Thomas

    2013-07-01

    The nuclear industry has been slow to incorporate digital sensor technology into nuclear plant designs due to concerns with digital qualification issues. However, the benefits of digital sensor technology for nuclear plant instrumentation are substantial in terms of accuracy, reliability, availability, and maintainability. This report demonstrates these benefits in direct comparisons of digital and analog sensor applications. It also addresses the qualification issues that must be addressed in the application of digital sensor technology.

  10. Progress of Digital Communication Technology

    Science.gov (United States)

    Yamazaki, Satoshi; Asano, David K.

    In wireless communications, since transmitted signals are scattered from many objects, many propagation paths with different time delays are formed. When transmitting and receiving while moving in such an environment, received signals will be affected by intricate selective fading in both the frequency and time domains. In this technical note, first, the mechanism of fading phenomena is clarified, changes in previous phase compensation technology are surveyed, and a foundation for digital wireless-communications technology is provided.

  11. Digital security technology simplified.

    Science.gov (United States)

    Scaglione, Bernard J

    2007-01-01

    Digital security technology is making great strides in replacing analog and other traditional security systems including CCTV card access, personal identification and alarm monitoring applications. Like any new technology, the author says, it is important to understand its benefits and limitations before purchasing and installing, to ensure its proper operation and effectiveness. This article is a primer for security directors on how digital technology works. It provides an understanding of the key components which make up the foundation for digital security systems, focusing on three key aspects of the digital security world: the security network, IP cameras and IP recorders.

  12. Digital Technology Entrepreneurship

    DEFF Research Database (Denmark)

    Giones, Ferran; Brem, Alexander

    2017-01-01

    Technology entrepreneurship is an established concept in academia. However, recent developments in the context of digital entrepreneurship call for revision and advance- ment. The multiple possible combinations of technology and entrepreneurship have res- ulted in a diversity of phenomena...... with significantly different characteristics and socio-economic impact. This article is focused on the identification and description of technology entrepreneurship in times of digitization. Based on current examples, we identify and describe characterizations of technology entrepreneurship, digital techno- logy...... entrepreneurship, and digital entrepreneurship. With this new delineation of terms, we would like to foster discussion between researchers, entrepreneurs, and policy makers on the impact of digitization on entrepreneurship, and set a future research agenda....

  13. Digital Sensor Technology

    Energy Technology Data Exchange (ETDEWEB)

    Thomas, Ken D. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Quinn, Edward L. [Technology Resources, Dana Point, CA (United States); Mauck, Jerry L. [Technology Resources, Dana Point, CA (United States); Bockhorst, Richard M. [Technology Resources, Dana Point, CA (United States)

    2015-02-01

    The nuclear industry has been slow to incorporate digital sensor technology into nuclear plant designs due to concerns with digital qualification issues. However, the benefits of digital sensor technology for nuclear plant instrumentation are substantial in terms of accuracy and reliability. This paper, which refers to a final report issued in 2013, demonstrates these benefits in direct comparisons of digital and analog sensor applications. Improved accuracy results from the superior operating characteristics of digital sensors. These include improvements in sensor accuracy and drift and other related parameters which reduce total loop uncertainty and thereby increase safety and operating margins. An example instrument loop uncertainty calculation for a pressure sensor application is presented to illustrate these improvements. This is a side-by-side comparison of the instrument loop uncertainty for both an analog and a digital sensor in the same pressure measurement application. Similarly, improved sensor reliability is illustrated with a sample calculation for determining the probability of failure on demand, an industry standard reliability measure. This looks at equivalent analog and digital temperature sensors to draw the comparison. The results confirm substantial reliability improvement with the digital sensor, due in large part to ability to continuously monitor the health of a digital sensor such that problems can be immediately identified and corrected. This greatly reduces the likelihood of a latent failure condition of the sensor at the time of a design basis event. Notwithstanding the benefits of digital sensors, there are certain qualification issues that are inherent with digital technology and these are described in the report. One major qualification impediment for digital sensor implementation is software common cause failure (SCCF).

  14. Digital Actuator Technology

    Energy Technology Data Exchange (ETDEWEB)

    Ken Thomas; Ted Quinn; Jerry Mauck; Richard Bockhorst

    2014-09-01

    There are significant developments underway in new types of actuators for power plant active components. Many of these make use of digital technology to provide a wide array of benefits in performance of the actuators and in reduced burden to maintain them. These new product offerings have gained considerable acceptance in use in process plants. In addition, they have been used in conventional power generation very successfully. This technology has been proven to deliver the benefits promised and substantiate the claims of improved performance. The nuclear industry has been reluctant to incorporate digital actuator technology into nuclear plant designs due to concerns due to a number of concerns. These could be summarized as cost, regulatory uncertainty, and a certain comfort factor with legacy analog technology. The replacement opportunity for these types of components represents a decision point for whether to invest in more modern technology that would provide superior operational and maintenance benefits. Yet, the application of digital technology has been problematic for the nuclear industry, due to qualification and regulatory issues. With some notable exceptions, the result has been a continuing reluctance to undertake the risks and uncertainties of implementing digital actuator technology when replacement opportunities present themselves. Rather, utilities would typically prefer to accept the performance limitations of the legacy analog actuator technologies to avoid impacts to project costs and schedules. The purpose of this report is to demonstrate that the benefits of digital actuator technology can be significant in terms of plant performance and that it is worthwhile to address the barriers currently holding back the widespread development and use of this technology. It addresses two important objectives in pursuit of the beneficial use of digital actuator technology for nuclear power plants: 1. To demonstrate the benefits of digital actuator

  15. Science & Technology Digital Library

    OpenAIRE

    Solodovnik, Iryna

    2014-01-01

    This document contains information on the activities carried out within the project Science & Technology Digital Library and in particular, it describes the Metadata Core Reference Model. Metadata are strategic for semantic interoperability to and, from the repository. Metadata are essential for available and safe management of digital objects, and for their sustainability and preservation. For these reasons, the project needs to define a specific metadata model. The purpose of this document ...

  16. Synthesis of digital locomotive receiver of automatic locomotive signaling

    Directory of Open Access Journals (Sweden)

    K. V. Goncharov

    2013-02-01

    Full Text Available Purpose. Automatic locomotive signaling of continuous type with a numeric coding (ALSN has several disadvantages: a small number of signal indications, low noise stability, high inertia and low functional flexibility. Search for new and more advanced methods of signal processing for automatic locomotive signaling, synthesis of the noise proof digital locomotive receiver are essential. Methodology. The proposed algorithm of detection and identification locomotive signaling codes is based on the definition of mutual correlations of received oscillation and reference signals. For selecting threshold levels of decision element the following criterion has been formulated: the locomotive receiver should maximum set the correct solution for a given probability of dangerous errors. Findings. It has been found that the random nature of the ALSN signal amplitude does not affect the detection algorithm. However, the distribution law and numeric characteristics of signal amplitude affect the probability of errors, and should be considered when selecting a threshold levels According to obtained algorithm of detection and identification ALSN signals the digital locomotive receiver has been synthesized. It contains band pass filter, peak limiter, normalizing amplifier with automatic gain control circuit, analog to digital converter and digital signal processor. Originality. The ALSN system is improved by the way of the transfer of technical means to modern microelectronic element base, more perfect methods of detection and identification codes of locomotive signaling are applied. Practical value. Use of digital technology in the construction of the locomotive receiver ALSN will expand its functionality, will increase the noise immunity and operation stability of the locomotive signal system in conditions of various destabilizing factors.

  17. Chromatic Dispersion Estimation in Digital Coherent Receivers

    DEFF Research Database (Denmark)

    Soriano, Ruben Andres; Hauske, Fabian N.; Guerrero Gonzalez, Neil

    2011-01-01

    Polarization-diverse coherent demodulation allows to compensate large values of accumulated linear distortion by digital signal processing. In particular, in uncompensated links without optical dispersion compensation, the parameter of the residual chromatic dispersion (CD) is vital to set...

  18. FFT Based VLSI Digital One Bit Electronic Warfare Receiver

    National Research Council Canada - National Science Library

    Chien-In, Henry

    1998-01-01

    ... (1 GHz) digital receiver designed for electronic warfare applications. The receiver can process two simultaneous signals and has the potential for fabrication on a single multi-chip module (MCM...

  19. Intermediate Frequency Digital Receiver Based on Multi-FPGA System

    Directory of Open Access Journals (Sweden)

    Chengchang Zhang

    2016-01-01

    Full Text Available Aiming at high-cost, large-size, and inflexibility problems of traditional analog intermediate frequency receiver in the aerospace telemetry, tracking, and command (TTC system, we have proposed a new intermediate frequency (IF digital receiver based on Multi-FPGA system in this paper. Digital beam forming (DBF is realized by coordinated rotation digital computer (CORDIC algorithm. An experimental prototype has been developed on a compact Multi-FPGA system with three FPGAs to receive 16 channels of IF digital signals. Our experimental results show that our proposed scheme is able to provide a great convenience for the design of IF digital receiver, which offers a valuable reference for real-time, low power, high density, and small size receiver design.

  20. Digital academia: How higher education is affected by digital technology

    OpenAIRE

    Eriksmo, Anton; Sundberg, Johan

    2016-01-01

    Digital technology in higher education is constantly evolving. Understanding the effects of digital technology is important for higher education institutions in order to make good investments of digital technology. Previous research has focused on learning, teaching or the organization and the relation between one of these aspects and digital technology, thereby missing a broader understanding of how materiality in digital technology affects higher education. In this study themed interviews w...

  1. Digital processing optical transmission and coherent receiving techniques

    CERN Document Server

    Binh, Le Nguyen

    2013-01-01

    With coherent mixing in the optical domain and processing in the digital domain, advanced receiving techniques employing ultra-high speed sampling rates have progressed tremendously over the last few years. These advances have brought coherent reception systems for lightwave-carried information to the next stage, resulting in ultra-high capacity global internetworking. Digital Processing: Optical Transmission and Coherent Receiving Techniques describes modern coherent receiving techniques for optical transmission and aspects of modern digital optical communications in the most basic lines. The

  2. Digital terrestrial television broadcasting technology and system

    CERN Document Server

    2015-01-01

    Now under massive deployment worldwide, digital terrestrial television broadcasting (DTTB) offers one of the most attractive ways to deliver digital TV over the VHF/UHF band. Written by a team of experts for specialists and non-specialists alike, this book serves as a comprehensive guide to DTTB. It covers the fundamentals of channel coding and modulation technologies used in DTTB, as well as receiver technology for synchronization, channel estimation, and equalization. It also covers the recently introduced Chinese DTTB standard, using the SFN network in Hong Kong as an example.

  3. Digital stethoscope: technology update

    Science.gov (United States)

    Swarup, Supreeya; Makaryus, Amgad N

    2018-01-01

    Cardiovascular disease (CVD) is recognized as the leading cause of mortality throughout the world. About one-third of global mortality is attributable to CVD. In addition to clinical presentation, specific clinical exam findings can assist in treating and preventing CVD. CVD may initially manifest as pulmonary pathology, and thus, accurate cardiopulmonary auscultation is paramount to establishing accurate diagnosis. One of the most powerful tools available to physicians is the stethoscope. The stethoscope first emerged in the year 1818, invented by a French physician, René Laennec. Since then, the initial modest monaural wooden tube has evolved into a sophisticated digital device. This paper provides an analysis of the evolution of the stethoscope as well as highlights the advancement made by the modern digital stethoscope including the application of this tool in advancing care for patients suffering from CVD. PMID:29379321

  4. Reconfigurable digital receiver design and application for instantaneous polarimetric measurement

    NARCIS (Netherlands)

    Wang, Z.; Krasnov, O.A.; Babur, G.P.; Ligthart, L.P.; Van der Zwan, F.

    2011-01-01

    This paper presents the development of a reconfigurable receiver to undertake challenging signal processing tasks for a novel polarimetric radar system. The field-programmable gate arrays (FPGAs)-based digital receiver samples incoming signals at intermediate frequency (IF) and processes signals

  5. Digital stethoscope: technology update

    Directory of Open Access Journals (Sweden)

    Swarup S

    2018-01-01

    Full Text Available Supreeya Swarup,1 Amgad N Makaryus1,2 1Department of Cardiology, Nassau University Medical Center, East Meadow, NY, 2Department of Cardiology, Zucker School of Medicine at Hofstra/Northwell Health, Hempstead, NY, USA Abstract: Cardiovascular disease (CVD is recognized as the leading cause of mortality throughout the world. About one-third of global mortality is attributable to CVD. In addition to clinical presentation, specific clinical exam findings can assist in treating and preventing CVD. CVD may initially manifest as pulmonary pathology, and thus, accurate cardiopulmonary auscultation is paramount to establishing accurate diagnosis. One of the most powerful tools available to physicians is the stethoscope. The stethoscope first emerged in the year 1818, invented by a French physician, René Laennec. Since then, the initial modest monaural wooden tube has evolved into a sophisticated digital device. This paper provides an analysis of the evolution of the stethoscope as well as highlights the advancement made by the modern digital stethoscope including the application of this tool in advancing care for patients suffering from CVD. Keywords: cardiovascular disease, physical exam, diagnosis, treatment

  6. Digital Downsides: Exploring University Students' Negative Engagements with Digital Technology

    Science.gov (United States)

    Selwyn, Neil

    2016-01-01

    Digital technologies are now an integral feature of university study. As such, academic research has tended to concentrate on the potential of digital technologies to support, extend and even "enhance" student learning. This paper, in contrast, explores the rather more messy realities of students' engagements with digital technology. In…

  7. Research on Digital Product Modeling Key Technologies of Digital Manufacturing

    Institute of Scientific and Technical Information of China (English)

    DING Guoping; ZHOU Zude; HU Yefa; ZHAO Liang

    2006-01-01

    With the globalization and diversification of the market and the rapid development of Information Technology (IT) and Artificial Intelligence (AI), the digital revolution of manufacturing is coming. One of the key technologies in digital manufacturing is product digital modeling. This paper firstly analyzes the information and features of the product digital model during each stage in the product whole lifecycle, then researches on the three critical technologies of digital modeling in digital manufacturing-product modeling, standard for the exchange of product model data and digital product data management. And the potential signification of the product digital model during the process of digital manufacturing is concluded-product digital model integrates primary features of each stage during the product whole lifecycle based on graphic features, applies STEP as data exchange mechanism, and establishes PDM system to manage the large amount, complicated and dynamic product data to implement the product digital model data exchange, sharing and integration.

  8. CCTV networking and digital technology

    CERN Document Server

    Damjanovski, Vlado

    2005-01-01

    Closed circuit television (CCTV) is experiencing a leap in technology using digital techniques, networking and the Internet. The new edition of this high-level professional reference retains the particulars that made the first edition a success, including the details of CCD cameras, lenses, coaxial cables, fiber-optics, and system design, but it is expanded to cover all video compression techniques used in the ever increasing assortment of digital video recorders (DVRs) available on the market today. This new edition of the book CCTV demystifies DVR technology. It also serves to clarify the te

  9. SCORE DIGITAL TECHNOLOGY: THE CONVERGENCE

    Directory of Open Access Journals (Sweden)

    Chernyshov Alexander V.

    2013-12-01

    Full Text Available Explores the role of digital scorewriters in today's culture, education, and music industry and media environment. The main principle of the development of software is not only publishing innovation (relating to the sheet music, and integration into the area of composition, arrangement, education, creative process for works based on digital technology (films, television and radio broadcasting, Internet, audio and video art. Therefore the own convergence of musically-computer technology is a total phenomenon: notation program combined with means MIDI-sequencer, audio and video editor. The article contains the unique interview with the creator of music notation processors.

  10. Digital-data receiver synchronization method and apparatus

    Science.gov (United States)

    Smith, Stephen F [Loudon, TN; Turner, Gary W [Clinton, TN

    2009-09-08

    Digital data receiver synchronization is provided with composite phase-frequency detectors, mutually cross-connected comparison feedback or both to provide robust reception of digital data signals. A single master clock can be used to provide frequency signals. Advantages can include fast lock-up time in moderately to severely noisy conditions, greater tolerance to noise and jitter when locked, and improved tolerance to clock asymmetries.

  11. Digital Natives and Digital Immigrants: Teaching with Technology

    Science.gov (United States)

    Martin, Ellen Marie Peterson

    2011-01-01

    Education is witnessing an increasing demand for technology use in the classroom. At the same time, new teachers are entering the profession in high numbers, some being labeled as "Digital Natives" while others are labeled "Digital Immigrants". This qualitative case study investigated the technology practices of Digital Native and Digital…

  12. Low-cost digital GPS receiver with software carrier detection

    Science.gov (United States)

    Wolf, M. H.

    1988-08-01

    The satellite navigation system global positioning system (GPS) will play a major role in the field of navigation. It will be able to compete with all previously existing radio navigation systems. Low-cost receivers will be built for a number of civilian users, such as general aviation, sea and land navigation. To permit production at low cost for the civil market, a new technique for a C/A (course and acquisition) code receiver has been developed. All the signal detecting and processing is carried out with the digital signal processing software in a Texas Instruments TMS 320C10. The advantage of this method is that complex functions can be effected in a computer program instead of in analog or digital circuits. This reduces the costs of the parts used in the receiver and also avoids calibration. Taken together, these two features greatly reduce the price of a navigation set. This paper discusses the underlying principles leading to this new receiver.

  13. Digital Technologies as Education Innovation at Universities

    Science.gov (United States)

    Kryukov, Vladimir; Gorin, Alexey

    2017-01-01

    This paper analyses the use of digital technology-based education innovations in higher education. It demonstrated that extensive implementation of digital technologies in universities is the main factor conditioning the acceleration of innovative changes in educational processes, while digital technologies themselves become one of the key…

  14. Digital terrestrial broadcasting receiver in the U.K; Eikoku chijoha digital hoso jushinki

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Digital terrestrial broadcasting is broadcasted in parallel with existing UHF analog broadcasting, whereas each of allocated channel frequencies can transmit five to six programs simultaneously. Each home can receive a number of programs with the existing antenna without a need of installing a new satellite antenna or cable. Among the countries of the world running forward to digitization of broadcasting all at once, the U.K. develops advancing movements and leads the world by starting the digital terrestrial broadcasting. In addition to the digitized broadcasting of conventional analog broadcasting programs, the `Ondigitals` (broadcasting operators) have started newly the pay broadcasting. Toshiba has been selected as one of the six developers and manufacturers of digital terrestrial broadcasting receivers, and has developed the digital terrestrial broadcasting receiver DTB2000. For the modulation system, the orthogonal frequency division multiplex (OFDM) was chosen as a system being strong against ghost and most suitable for digital terrestrial broadcasting. In addition, the receiver is equipped with software download function by using the broadcasting waves, and the common interface being the communication specification specified in the DVB (digital video broadcasting) to provide future function expandability. (translated by NEDO)

  15. Direct digital conversion detector technology

    Science.gov (United States)

    Mandl, William J.; Fedors, Richard

    1995-06-01

    Future imaging sensors for the aerospace and commercial video markets will depend on low cost, high speed analog-to-digital (A/D) conversion to efficiently process optical detector signals. Current A/D methods place a heavy burden on system resources, increase noise, and limit the throughput. This paper describes a unique method for incorporating A/D conversion right on the focal plane array. This concept is based on Sigma-Delta sampling, and makes optimum use of the active detector real estate. Combined with modern digital signal processors, such devices will significantly increase data rates off the focal plane. Early conversion to digital format will also decrease the signal susceptibility to noise, lowering the communications bit error rate. Computer modeling of this concept is described, along with results from several simulation runs. A potential application for direct digital conversion is also reviewed. Future uses for this technology could range from scientific instruments to remote sensors, telecommunications gear, medical diagnostic tools, and consumer products.

  16. Implementation digital technologies in nuclear utilities

    International Nuclear Information System (INIS)

    Wiegand, C.; Maselli, A.J.

    2012-01-01

    The introduction of digital technologies into the nuclear industry has assisted in many ways and made many of the Life Extensions and Uprates a possibility. But with this introduction of digital technologies comes some potentially challenging issues which need to be addressed for ultimate project success. This presentation discusses what a nuclear utility should consider and establish when implementing digital technologies in their plant. Digital technologies have been employed in many safety critical industries such as Aerospace, Pharmaceutical, Oil and Gas, and Chemical. However, nuclear industry implementation of digital technologies has been slow and in many ways tenuous. There are even documented operating experience events in which plant trips/SCRAMs occurred during a digital system implementation. This presentation aims to prevent those issues drawing upon the lessons learned over the past 5 years. Considerations include general challenges to overcome when implementing Digital Technologies, how to justify and execute projects, evaluation of resource knowledge, and the new challenges of Cyber Security. (author)

  17. Implementation digital technologies in nuclear utilities

    Energy Technology Data Exchange (ETDEWEB)

    Wiegand, C.; Maselli, A.J., E-mail: Tony.Maselli@Invensys.com [Invensys Operations Management, London (United Kingdom)

    2012-07-01

    The introduction of digital technologies into the nuclear industry has assisted in many ways and made many of the Life Extensions and Uprates a possibility. But with this introduction of digital technologies comes some potentially challenging issues which need to be addressed for ultimate project success. This presentation discusses what a nuclear utility should consider and establish when implementing digital technologies in their plant. Digital technologies have been employed in many safety critical industries such as Aerospace, Pharmaceutical, Oil and Gas, and Chemical. However, nuclear industry implementation of digital technologies has been slow and in many ways tenuous. There are even documented operating experience events in which plant trips/SCRAMs occurred during a digital system implementation. This presentation aims to prevent those issues drawing upon the lessons learned over the past 5 years. Considerations include general challenges to overcome when implementing Digital Technologies, how to justify and execute projects, evaluation of resource knowledge, and the new challenges of Cyber Security. (author)

  18. Digital Natives: Creating Emergent Exhibitions through Digital Technologies

    DEFF Research Database (Denmark)

    Smith, Rachel Charlotte; Iversen, Ole Sejer; Dindler, Christian

    2011-01-01

    . In this way, digital technology can contribute to the creation of emergent exhibitions in which the exhibition is created in dialogue between audiences and the museum. We present experiences from a current research project, the Digital Natives exhibition, in which digital technology was designed......Digital Technology can support the creation of dialogical spaces in the museum, both playful and reflective, that allow audiences to engage in the ongoing construction and reproduction of cultural heritage creating novel connections between self and others and between past, present and future...... as an integral part of the exhibition to encourage dialogue between audiences and the exhibition materials and thereby investigate how the exhibition emerge as a result of this dialogic co-construction inside the exhibition space. In short, the opportunities offered by digital technologies prompts us to consider...

  19. Digital Technology and Student Cognitive Development

    Science.gov (United States)

    Cavanaugh, J. Michael; Giapponi, Catherine C.; Golden, Timothy D.

    2016-01-01

    Digital technology has proven a beguiling, some even venture addictive, presence in the lives of our 21st century (millennial) students. And while screen technology may offer select cognitive benefits, there is mounting evidence in the cognitive neuroscience literature that digital technology is restructuring the way our students read and think,…

  20. Advanced Equalization Techniques for Digital Coherent Optical Receivers

    DEFF Research Database (Denmark)

    Arlunno, Valeria

    approach based on joint encoding and equalization technique, known as Turbo Equalization (TE). This scheme is demonstrated to be powerful in transmission impairments mitigation for high order modulations formats, such as 16 Quadrature Amplitude Modulation (QAM), considered a key technology for high speed...... a lower complexity convolutional code compared to state of the art reports. Furthermore, in order to fulfill the strict constrains of spectral efficiency, this thesis shows the application of digital adaptive equalizer for reconfigurable and Ultra Dense Wavelength Division Multiplexing (U......-over-Fiber (RoF) transmission system for a stand alone case and mixed modulation mixed bit rates transmission scheme. In conclusion, this PhD thesis demonstrates the flexibility, upgrade-ability and robustness offered by rising advanced digital signal processing techniques, for future high-speed, high...

  1. On the digital technology of microfilms

    International Nuclear Information System (INIS)

    Wang Zhihong

    2012-01-01

    The perfect combination of microfilm digital technology and computer technology not only shows the agility, the logicality and the convenience of the computer file management, but also shows the permanence, the authenticity and the legal validity of the microfilm technology. Therefore, the microfilm digital technology has a wide application prospect in the archives departments, and will further enhance the level of modernization of file management. (author)

  2. Digital Technologies: From Vision to Action

    Science.gov (United States)

    Armistead, Stuart

    2016-01-01

    The interest and uptake in utilising digital technologies in education appears to be exponential. With the rollout of ultrafast broadband and the development of the Network for Learning in New Zealand, school leaders face the challenges and opportunity of deciding when, what and how they go about implementing digital technologies in their schools.…

  3. Digital technology in physical education: global perspectives

    NARCIS (Netherlands)

    Koekoek, Jeroen; van Hilvoorde, I.M.

    2018-01-01

    The rapid development of digital technologies has opened up new possibilities for how Physical Education is taught. This book offers a comprehensive, practice-oriented and critical exploration of the actual and potential applications of digital technologies in PE. It considers the opportunities that

  4. Digitalization and the global technology trends

    Science.gov (United States)

    Ignat, V.

    2017-08-01

    Digitalization, connected products and services, and shortening innovation cycles are widely discussed topics in management practice and theory and demand for new concepts. We analysed how companies innovated their business models and how are the new the technology trends. We found out, that have a positive approach to digitalization but the technology strategy still runs its original business model. Digitalization forces to new solution orientation. For companies it is necessary to master the digital transformation, new innovations have to be developed. Furthermore, digitalization / Industry 4.0 linking the real-life factory with virtual reality, will play an increasingly important role in global manufacturing. Companies have to obtain new digital capabilities, in order to make their company sustainable for the future. A long term growth and welfare in Europe could be guaranteed only by new technology innovation.

  5. Digital technologies in Day-care institutions

    DEFF Research Database (Denmark)

    Schrøder, Vibeke; Søndergaard, Steen

    Digital technologies are gaining an ever increasing access into the activities in Danish and Nordic day-care institutions. The traditional critical viewpoint of technologies as being opposed to the well-being of children is challenged in part by substantial access to digital tools in infant life......, in part by new technologies designed with an intuitive and inviting user interface. In a one-year research project ’Digital tools in day-care-institutions’ (2015) financed by The Danish Agency for Digitisation and The Ministry of Education we have investigated the role of digital technologies in relation...... in performances of dominant cultural ways of acting and thinking. Also, most often the pedagogues’ use of technologies follow the immediate possibilities offered by the technologies. From the videos of these activities it appears that the children follow two tracks of participation. Either the children work...

  6. Digital Literacy and New Technological Perspectives

    Science.gov (United States)

    Feola, Elvia Ilaria

    2016-01-01

    This paper aims to reflect on the implications and challenges that experts in the field have to deal with when you want to evaluate the performance in the use of digital technologies in teaching. The argument stems from a contextual and social assessment, and then proceeds to an application and methodological connotation of digital literacy…

  7. Digital Technologies and a Changing Profession

    DEFF Research Database (Denmark)

    Plesner, Ursula; Raviola, Elena

    Digital technologies are profoundly disturbing not only news delivery, but also the whole organization of news work. The relationship between digital technologies and news has been investigated especially in media and journalism studies. Scholars in these fields have followed the introduction...... of digital technologies into news work (Ursell, 2001; Pavlik, 2000, 2013; Saltzis and Dickinson, 2008; Meikle and Redden, 2011, Plesner 2010), and dealt with a range of organizational consequences of this development. In studies of news organizations, it has been pointed out that the question of digital...... technology appropriation is not just important for technical or economic reasons, but because it affects organizational structures, work practices and representations (Boczkowski, 2004). For instance, reporters and editors must manage market pressures and time pressures in new ways (Klinenberg, 2005) due...

  8. Digital signal processing - growth of a technology

    International Nuclear Information System (INIS)

    Peek, J.B.H.

    1985-01-01

    The rapid development of microelectronics has led to an increasing extent in circuits and systems for digital signal processing. This happened first in professional applications, e.g. geophysics, astronomy and space flight, and now, with the Compact Disc player, these techniques have entered the consumer field. In the near future digital TV applications will undoubtedly follow. This article outlines a number of the developments behind the advancing 'digitization' of modern technology. The article also considers the main advantages and disadvantages of digital signal processing the main modules now used and some common applications. Particular attention is paid to medical applications. (Auth.)

  9. Update on new technologies in digital mammography

    Directory of Open Access Journals (Sweden)

    Patterson SK

    2014-08-01

    Full Text Available Stephanie K Patterson, Marilyn A Roubidoux Division of Breast Imaging, Department of Radiology, University of Michigan Health System, Ann Arbor, MI, USA Abstract: Despite controversy regarding mammography's efficacy, it continues to be the most commonly used breast cancer-screening modality. With the development of digital mammography, some improved benefit has been shown in women with dense breast tissue. However, the density of breast tissue continues to limit the sensitivity of conventional mammography. We discuss the development of some derivative digital technologies, primarily digital breast tomosynthesis, and their strengths, weaknesses, and potential patient impact. Keywords: screening mammography, breast cancer, contrast media, digital breast tomosynthesis

  10. Analysis of parallel optical sampling rate and ADC requirements in digital coherent receivers

    DEFF Research Database (Denmark)

    Lorences Riesgo, Abel; Galili, Michael; Peucheret, Christophe

    2012-01-01

    We comprehensively assess analog-to-digital converter requirements in coherent digital receiver schemes with parallel optical sampling. We determine the electronic requirements in accordance with the properties of the free running local oscillator.......We comprehensively assess analog-to-digital converter requirements in coherent digital receiver schemes with parallel optical sampling. We determine the electronic requirements in accordance with the properties of the free running local oscillator....

  11. Sustainability, cognitive technologies and the digital semiosphere

    DEFF Research Database (Denmark)

    Bruni, Luis Emilio

    2015-01-01

    The convergence of digital and multimodal cognitive technologies offers the possibility to interact in an ‘on-line’ cultural process mediated by new ways of representing our thoughts, emotions, ideas, beliefs, opinions and behaviours. Such technological integration not only alters and introduces...

  12. Handbook of digital games and entertainment technologies

    NARCIS (Netherlands)

    Nakatsu, R.; Rauterberg, G.W.M.; Ciancarini, P.

    2017-01-01

    The topics treated in this handbook cover all areas of games and entertainment technologies, such as digital entertainment; technology, design/art, and sociology. The handbook consists of contributions from top class scholars and researchers from the interdisciplinary topic areas. The aim of this

  13. How we cope with digital technology

    CERN Document Server

    Turner, Phil

    2013-01-01

    Digital technology has become a defining characteristic of modern life. Almost everyone uses it, we all rely on it, and many of us own a multitude of devices. What is more, we all expect to be able to use these technologies ""straight out the box."" This lecture discusses how we are able to do this without apparent problems. We are able to use digital technology because we have learned to cope with it. ""To cope"" is used in philosophy to mean ""absorbed engagement,"" that is, we use our smart phones and tablet computers with little or no conscious effort. In human-computer interaction this ki

  14. Using digital technology to enhance restorative dentistry.

    Science.gov (United States)

    Fasbinder, Dennis

    2012-10-01

    While there are many benefits for dental practices that incorporate digital systems into their workflow, the dental team must first master the learning curve involved in order to maximize their advantages for creating well-fitting restorations. This article describes the current systems-both digital impression systems and chairside CAD/CAM systems-including software and digital cameras and scanners. The author emphasizes that to consistently capture accurate impressions with this technology, the dental team must continue to rely on traditional skills such as achieving optimal soft-tissue retraction and maintaining moisture control and isolation.

  15. Building the digital enterprise a guide to constructing monetization models using digital technologies

    CERN Document Server

    Skilton, Mark

    2016-01-01

    The digital economy is at a tipping point. This practical book defines digital ecosystems, discusses digital design using converging technologies of social networking, mobility, big data and cloud computing, and provides a methods for linking digital technologies together to meet the challenges of building a digital enterprise in the new economy.

  16. Classical Music, liveness and digital technologies

    DEFF Research Database (Denmark)

    Steijn, Arthur

    2014-01-01

    . This article uses the suggestion of Philip Auslander to rethink the relationship between the mediatized and live format in order to use digital technologies to enrich and develop the live performance as a starting position. On the background of an ongoing EU funded interregional project, a series...... of interrelated design experiments are presented which all share the ambition of integration digital technologies in life performances of classical music. A particular focus is put on the ongoing development of a design concept where interactive audio and visual experiences in an underground metro station shall...

  17. Advanced distributed simulation technology: Digital Voice Gateway Reference Guide

    Science.gov (United States)

    Vanhook, Dan; Stadler, Ed

    1994-01-01

    The Digital Voice Gateway (referred to as the 'DVG' in this document) transmits and receives four full duplex encoded speech channels over the Ethernet. The information in this document applies only to DVG's running firmware of the version listed on the title page. This document, previously named Digital Voice Gateway Reference Guide, BBN Systems and Technologies Corporation, Cambridge, MA 02138, was revised for revision 2.00. This new revision changes the network protocol used by the DVG, to comply with the SINCGARS radio simulation (For SIMNET 6.6.1). Because of the extensive changes to revision 2.00 a separate document was created rather than supplying change pages.

  18. Incorporating digital technologies into science classes

    DEFF Research Database (Denmark)

    Hilton, Annette; Hilton, Geoff

    2013-01-01

    in science. The first case study involved primary school students (12 years old) using digital video production to record and represent their learning in science. This study extended writing-to-learn approaches to include video production to learn. The second case study involved Year 11 chemistry students...... learning. There is a need for research that examines the ways in which digital technologies impact on teaching practices and learning outcomes. This paper describes case studies from two larger studies that examined ways in which digital technologies could be used to promote students’ understanding...... for students, including increased conceptual understanding, enhanced motivation and engagement, and increased representational competence. This paper reports on the classroom strategies and teaching resources used in each case, and describes the learning outcomes for the students involved and some...

  19. Mobile technology and the digitization of healthcare.

    Science.gov (United States)

    Bhavnani, Sanjeev P; Narula, Jagat; Sengupta, Partho P

    2016-05-07

    The convergence of science and technology in our dynamic digital era has resulted in the development of innovative digital health devices that allow easy and accurate characterization in health and disease. Technological advancements and the miniaturization of diagnostic instruments to modern smartphone-connected and mobile health (mHealth) devices such as the iECG, handheld ultrasound, and lab-on-a-chip technologies have led to increasing enthusiasm for patient care with promises to decrease healthcare costs and to improve outcomes. This 'hype' for mHealth has recently intersected with the 'real world' and is providing important insights into how patients and practitioners are utilizing digital health technologies. It is also raising important questions regarding the evidence supporting widespread device use. In this state-of-the-art review, we assess the current literature of mHealth and aim to provide a framework for the advances in mHealth by understanding the various device, patient, and clinical factors as they relate to digital health from device designs and patient engagement, to clinical workflow and device regulation. We also outline new strategies for generation and analysis of mHealth data at the individual and population-based levels. Published on behalf of the European Society of Cardiology. All rights reserved. © The Author 2016. For permissions please email: journals.permissions@oup.com.

  20. Utilising digital technology for dialogue and evaluation

    DEFF Research Database (Denmark)

    Kjærgaard, Thomas

    2016-01-01

    This article investigates how digital technology can enhance evaluation and eflection through dialogue in a theory lesson in the context of university college teaching. The pedagogical designs in the article vary from synchronous classroom evaluation on smartphones, to online discussion fora...

  1. Do Digital Technologies Facilitate Illicit Financial Flows?

    OpenAIRE

    Tropina, Tatiana

    2016-01-01

    The emerging concept of illicit financial flows has become a crosscutting issue on the international agenda in recent years. This umbrella term refers to money illegally earned, transferred, or used. With the development of digital technologies, the use of information and communications networks as a tool for facilitating illicit financial flows is rising as one of the key challenges in ta...

  2. Utilising digital technology for dialogue and evaluation

    DEFF Research Database (Denmark)

    Kjærgaard, Thomas

    2016-01-01

    This article investigates how digital technology can enhance evaluation and reflection through dialogue in a theory lesson in the context of university college teaching. The pedagogical designs in the article vary from synchronous classroom evaluation on smartphones, to online discussion fora...

  3. Handbook of digital games and entertainment technologies

    CERN Document Server

    Rauterberg, Matthias; Ciancarini, Paolo

    2017-01-01

    The topics treated in this handbook cover all areas of games and entertainment technologies, such as digital entertainment; technology, design/art, and sociology. The handbook consists of contributions from top class scholars and researchers from the interdisciplinary topic areas.  The aim of this handbook is to serving as a key reference work in the field and provides readers with a holistic picture of this interdisciplinary field covering technical issues, aesthetic/design issues, and sociological issues. At present, there is no reference work in the field that provides such a broad and complete picture of the field. Engineers and researchers who want to learn about this emerging area will be able to find adequate answers regarding technology issues on digital entertainment. Designers and artists can learn how their skills and expertise can contribute to this emerging area. Also researchers working in the field of sociology and psychology will find how their experience and knowledge are connected to other ...

  4. Technological Integration of Acquisitions in Digital Industries

    DEFF Research Database (Denmark)

    Henningsson, Stefan; Toppenberg, Gustav

    2015-01-01

    providers to extend the platform core and to derive network effects by consolidating platform user groups, and (b) complement providers to create monopoly positions for the complements and for innovation complementarity. To enable these acquisition benefits, acquirers face technological integration...... challenges in process and product integration. Through a case study of Network Solutions Corp. (NSC), a Fortune 500 company that has acquired more than 175 business units, we develop four propositions explaining how the benefits of platform core and complement acquisitions are differently contingent......Acquisitions have become essential tools to retain the technological edge in digital industries. This paper analyses the technological integration challenges in such acquisitions. Acquirers in digital industries are typically platform leaders in platform markets. They acquire (a) other platform...

  5. Digital Technology and the Interactive Television

    Directory of Open Access Journals (Sweden)

    Ozéias Teixeira de Souza

    2008-08-01

    Full Text Available In this article it is analyzed the impact that the digital technology process causes in the way that television participates of the social life in Brazil. Trying a non-hermeneutic approach, it is proposed to think this new role of television, from the materiality existing on this media that can bring more interactivity and conducts the changes over people behavior. In our opinion, we realize that materiality can support the transposition of the nowadays analogical interaction form – the televiewer-television model – to a user-machine model in the digital television.

  6. A 3-5GHz UWB CMOS Receiver with Digital Control Technique

    DEFF Research Database (Denmark)

    Han, Bo; Liu, Mengmeng; Ge, Ning

    2010-01-01

    This article presents a CMOS receiver that works for 3-5GHz low band SC-UWB. The receiver contains PLL, Mixer, and VGA. Double down conversion is adopted in the receiver to overcome the orthogonal clock design difficulty; digital assisted RF control method is used to increase the stability...

  7. Cryocooled wideband digital channelizing radio-frequency receiver based on low-pass ADC

    International Nuclear Information System (INIS)

    Vernik, Igor V; Kirichenko, Dmitri E; Dotsenko, Vladimir V; Miller, Robert; Webber, Robert J; Shevchenko, Pavel; Talalaevskii, Andrei; Gupta, Deepnarayan; Mukhanov, Oleg A

    2007-01-01

    We have demonstrated a digital receiver performing direct digitization of radio-frequency signals over a wide frequency range from kilohertz to gigahertz. The complete system, consisting of a cryopackaged superconductor all-digital receiver (ADR) chip followed by room-temperature interface electronics and a field programmable gate array (FPGA) based post-processing module, has been developed. The ADR chip comprises a low-pass analog-to-digital converter (ADC) delta modulator with phase modulation-demodulation architecture together with digital in-phase and quadrature mixer and a pair of digital decimation filters. The chip is fabricated using a 4.5 kA cm -2 process and is cryopackaged using a commercial-off-the-shelf cryocooler. Experimental results in HF, VHF, UHF and L bands and their analysis, proving consistent operation of the cryopackaged ADR chip up to 24.32 GHz clock frequency, are presented and discussed

  8. How Digital Health Technology Aids Physicians

    Directory of Open Access Journals (Sweden)

    Nik Tehrani

    2015-06-01

    Full Text Available There is so much health and medical information available today that physicians cannot be expected to know it all. Thus, advances in technology have become a necessity for doctors to track patient information and care, and add to patient databases for reference and to conduct research. It is important to understand the new language of digital health, such as Personal Health Record (PHR, Electronic Medical Record (EMR and Electronic Health Record (EHR, all of which sound similar, but are not interchangeable. The ideal comprehensive IT system would empower patients, advance healthcare delivery and transform patient data into life-saving research (Kaiser, 2015. OmniFluent Health is language translation software that will allow for better patient/practitioner communication and avoid errors. Digital technology employs the use of big data that is shared, accessed, compiled and applied using analytics. However, information transfer, especially as mandated by current ethics of use of technology, has resulted into breach of patient privacy. Improved digital technology is providing the health care field with upgrades that are necessary, electronic files and health records, from mobile apps, and remote monitoring devices.

  9. Digital compensation of receiver clipping for DVB reception on low-power mobile

    NARCIS (Netherlands)

    Linnartz, J.P.M.G.; Rietman, R.

    2007-01-01

    Battery life-time is a critical issue for digital television (DVB) viewing on mobile phones. The number of quantization steps used in the analog-to-digital converter (ADC) is an important factor in the total power consumption of a DVB receiver. The OFDM signals require a large resolution of the ADC.

  10. Learning by Playing with Digital Technology

    DEFF Research Database (Denmark)

    Benjaminsen, Nana

    2006-01-01

    This paper presupposes the notion that there is potential for the integration of play into primary and secondary school activities, because it can stimulate and support the formal as well as informal learning that takes place in school. Digital technology could be a driver for this integration...... Construction Games in Schools. The project is an exploration of how elements of play can be integrated in a technology-based learning environment. I will use examples of empirical data gathered during spring 2006 to demonstrate that play can function as a useful learning strategy, and also point out barriers......, because many of children's play activities already takes place on, and through, digital platforms. The focus for this paper is on how playorientated environmental qualities can be used and might change the current school structure. The background for the paper is the PhD project entitled Computer based...

  11. Applying Digital Technologies to Strengthen Nuclear Safety

    International Nuclear Information System (INIS)

    Huffeteau, S.; Roy, C.

    2016-01-01

    Full text: The paper describes how the development of some information technologies can further contribute to the safety of nuclear facilities and their competitiveness. After repositioning the nuclear industry engineering practices in their historical and economic context, the paper describes five engineering practices or use cases widely developed especially in the aerospace industry: requirement management, business process enforcement by digitization of data and processes, facilities configuration management, engineering information unification, and digital licensing. Information technology (IT) plays a mandatory role for driving this change since IT is now mature enough to handle the level of complexity the nuclear industry requires. While the detailed evaluation of the expecting gains in cost decrease or safety increase can be difficult to quantify, the paper presents illustrative benefits reachable by a development of these practices. (author

  12. Spatial analysis of digital technologies and impact on socio - cultural ...

    African Journals Online (AJOL)

    The objective of this study was to determine the spatial distribution of digital technologies and ascertain whether digital technologies have significant impact on socio - cultural values or not. Moran's index and Getis and Ord's statistic were used for cluster and hotspots analysis. The unique locations of digital technologies ...

  13. Technological Improvements for Digital Fire Control Systems

    Science.gov (United States)

    2017-09-30

    Final Technical Status Report For DOTC-12-01-INIT061 Technological Improvements for Digital Fire Control Systems Reporting Period: 30 Sep...accuracy and responsiveness to call for fire. These prototypes shall be more cost effective, sustainable , use a higher percentage of alternative...of the quad charts and provide DOTC with sufficient initiative information, the Quarterly Report must be supplemented with data described below

  14. Wireless receiver architectures and design antennas, RF, synthesizers, mixed signal, and digital signal processing

    CERN Document Server

    Rouphael, Tony J

    2014-01-01

    Wireless Receiver Architectures and Design presents the various designs and architectures of wireless receivers in the context of modern multi-mode and multi-standard devices. This one-stop reference and guide to designing low-cost low-power multi-mode, multi-standard receivers treats analog and digital signal processing simultaneously, with equal detail given to the chosen architecture and modulating waveform. It provides a complete understanding of the receiver's analog front end and the digital backend, and how each affects the other. The book explains the design process in great detail, s

  15. Digital health technology and diabetes management.

    Science.gov (United States)

    Cahn, Avivit; Akirov, Amit; Raz, Itamar

    2018-01-01

    Diabetes care is largely dependent on patient self-management and empowerment, given that patients with diabetes must make numerous daily decisions as to what to eat, when to exercise, and determine their insulin dose and timing if required. In addition, patients and providers are generating vast amounts of data from many sources, including electronic medical records, insulin pumps, sensors, glucometers, and other wearables, as well as evolving genomic, proteomic, metabolomics, and microbiomic data. Multiple digital tools and apps have been developed to assist patients to choose wisely, and to enhance their compliance by using motivational tools and incorporating incentives from social media and gaming techniques. Healthcare teams (HCTs) and health administrators benefit from digital developments that sift through the enormous amounts of patient-generated data. Data are acquired, integrated, analyzed, and presented in a self-explanatory manner, highlighting important trends and items that require attention. The use of decision support systems may propose data-driven actions that, for the most, require final approval by the patient or physician before execution and, once implemented, may improve patient outcomes. The digital diabetes clinic aims to incorporate all digital patient data and provide individually tailored virtual or face-to-face visits to those persons who need them most. Digital diabetes care has demonstrated only modest HbA1c reduction in multiple studies and borderline cost-effectiveness, although patient satisfaction appears to be increased. Better understanding of the barriers to digital diabetes care and identification of unmet needs may yield improved utilization of this evolving technology in a safe, effective, and cost-saving manner. © 2017 Ruijin Hospital, Shanghai Jiaotong University School of Medicine and John Wiley & Sons Australia, Ltd.

  16. Access to information technology and willingness to receive text ...

    African Journals Online (AJOL)

    Over the past decade, new technologies and methods of communication have ... To determine access to information technology and willingness to receive short message service (SMS) text message reminders for childhood immunisation .... Table 1 shows the attitude of the mothers towards reminders for immunisations.

  17. Digital Receiver Design for Transmitted Reference Ultra-Wideband Systems

    Directory of Open Access Journals (Sweden)

    Wang Yiyin

    2009-01-01

    Full Text Available Abstract A complete detection, channel estimation, synchronization, and equalization scheme for a transmitted reference (TR ultra-wideband (UWB system is proposed in this paper. The scheme is based on a data model which admits a moderate data rate and takes both the interframe interference (IFI and the intersymbol interference (ISI into consideration. Moreover, the bias caused by the interpulse interference (IPI in one frame is also taken into account. Based on the analysis of the stochastic properties of the received signals, several detectors are studied and evaluated. Furthermore, a data-aided two-stage synchronization strategy is proposed, which obtains sample-level timing in the range of one symbol at the first stage and then pursues symbol-level synchronization by looking for the header at the second stage. Three channel estimators are derived to achieve joint channel and timing estimates for the first stage, namely, the linear minimum mean square error (LMMSE estimator, the least squares (LS estimator, and the matched filter (MF. We check the performance of different combinations of channel estimation and equalization schemes and try to find the best combination, that is, the one providing a good tradeoff between complexity and performance.

  18. Digital Receiver Design for Transmitted Reference Ultra-Wideband Systems

    Directory of Open Access Journals (Sweden)

    Yiyin Wang

    2009-01-01

    Full Text Available A complete detection, channel estimation, synchronization, and equalization scheme for a transmitted reference (TR ultra-wideband (UWB system is proposed in this paper. The scheme is based on a data model which admits a moderate data rate and takes both the interframe interference (IFI and the intersymbol interference (ISI into consideration. Moreover, the bias caused by the interpulse interference (IPI in one frame is also taken into account. Based on the analysis of the stochastic properties of the received signals, several detectors are studied and evaluated. Furthermore, a data-aided two-stage synchronization strategy is proposed, which obtains sample-level timing in the range of one symbol at the first stage and then pursues symbol-level synchronization by looking for the header at the second stage. Three channel estimators are derived to achieve joint channel and timing estimates for the first stage, namely, the linear minimum mean square error (LMMSE estimator, the least squares (LS estimator, and the matched filter (MF. We check the performance of different combinations of channel estimation and equalization schemes and try to find the best combination, that is, the one providing a good tradeoff between complexity and performance.

  19. Revolution of Nuclear Power Plant Design Through Digital Technology

    International Nuclear Information System (INIS)

    Zhang, L.; Shi, J.; Chen, W.

    2015-01-01

    In the digital times, digital technology has penetrated into every industry. As the highest safety requirement standard, nuclear power industry needs digital technology more to breed high quality and efficiency. Digital power plant is derived from digital design and the digitisation of power plant transfer is an inevitable trend. This paper introduces the technical solutions and features of digital nuclear power plant construction by Shanghai Nuclear Engineering Research & Design Institute, points out the key points and technical difficulties that exist in the process of construction and can serve as references for further promoting construction of digital nuclear power plant. Digital technology is still flourishing. Although many problems will be encountered in construction, it is believed that digital technology will make nuclear power industry more safe, cost-effective and efficient. (author)

  20. Deconstructing Digital Natives: Young People, Technology, and the New Literacies

    Science.gov (United States)

    Thomas, Michael, Ed.

    2011-01-01

    There have been many attempts to define the generation of students who emerged with the Web and new digital technologies in the early 1990s. The term "digital native" refers to the generation born after 1980, which has grown up in a world where digital technologies and the internet are a normal part of everyday life. Young people…

  1. Digital Technology and Mental Health Interventions: Opportunities and Challenges

    Directory of Open Access Journals (Sweden)

    Aguilera, Adrian

    2015-02-01

    Full Text Available The growth of the Internet, mobile phones, social media and other digital technologies has changed our world in many ways. It has provided individuals with information that was previously only available to a select few. An example of the reach of technology is data that as of October 2012, there are over 6 billion phones worldwide (BBC, 2012. The availability of data in real time has presented hopes of intervening more efficiently and managing health problems by leveraging limited human resources. It also has an impact in changing the roles of providers and patients and in legal and ethical issues including privacy in digital health interactions. This paper will discuss why digital technology has received recent attention in the area of mental health, present some applications of technology for mental health to date, explore the challenges to full implementation in clinical settings, and present future opportunities for digital technologies.El crecimiento del Internet, los teléfonos móviles, las redes sociales y otras tecnologías digitales ha cambiado nuestro mundo de muchas maneras. Ha proporcionado a las personas con la información que antes sólo estaba disponible para un grupo selecto, por ejemplo a partir de octubre de 2012. Un ejemplo del alcance de la tecnología son los datos que dicen que hay más de 6 millones de teléfonos en todo el mundo (BBC, 2012. La disponibilidad de los datos en tiempo real a presentado la esperanza de intervenir de manera más eficiente y manejar los problemas de salud los recursos humanos limitados. También tiene un impacto en el cambio de los roles de los proveedores y los pacientes y en aspectos legales y éticos, incluyendo la privacidad en las interacciones de salud digital. Este artículo discutirá unas razones por cual la tecnología digital ha recibido atención recientemente en el área de salud mental, presentará algunas aplicaciones de la tecnología para mejorar la salud mental hasta la fecha

  2. A digital receiver module with direct data acquisition for magnetic resonance imaging systems.

    Science.gov (United States)

    Tang, Weinan; Sun, Hongyu; Wang, Weimin

    2012-10-01

    A digital receiver module for magnetic resonance imaging (MRI) with detailed hardware implementations is presented. The module is based on a direct sampling scheme using the latest mixed-signal circuit design techniques. A single field-programmable gate array chip is employed to perform software-based digital down conversion for radio frequency signals. The modular architecture of the receiver allows multiple acquisition channels to be implemented on a highly integrated printed circuit board. To maintain the phase coherence of the receiver and the exciter in the context of direct sampling, an effective phase synchronization method was proposed to achieve a phase deviation as small as 0.09°. The performance of the described receiver module was verified in the experiments for both low- and high-field (0.5 T and 1.5 T) MRI scanners and was compared to a modern commercial MRI receiver system.

  3. Digital technology to enable aging in place.

    Science.gov (United States)

    Kim, Kwang-Il; Gollamudi, Shreya S; Steinhubl, Steven

    2017-02-01

    Aging, both of individuals and populations, presents challenges and opportunities. The multitude of morbidities and disabilities that are a too common component of aging represent significant challenges to individuals, their families and to healthcare systems. Aging in place is the ability to safely and comfortably maintain an independent and high quality of life in one's own home and community and is a highly desirable goal of most individuals with the additional benefit of significantly impacting the impending enormous healthcare burden. In order to make this possible, new care models that take advantage of novel technologies for tracking important physiologic and safety parameters need to be developed and implemented. By thoughtfully doing so, it can be possible to seamlessly provide preventative interventions when and as needed, detect the earliest signs of aggravation of chronic conditions, or identify and respond to any emergency situations, such as falls or cardiac arrest. In contrast to current approaches, caring for elderly individuals in their homes based on a digital technology infrastructure could be effective and cost-saving. In this review, we provide an overview of the characteristics of potential digital solutions applicable to creative aging along with the existing evidence supporting their ability to improve care, increase quality of life, and substantially decrease the emotional and financial costs associated with aging. Copyright © 2016 Elsevier Inc. All rights reserved.

  4. Eddy current testing using digital technology

    International Nuclear Information System (INIS)

    Houseman, H.E.; Lamb, L.T.; Kitson, B.

    1985-01-01

    Eddy current inspection techniques have been used extensively in industry as an accepted method of non-destructive testing. The application of this technology has proven invaluable for both the control of product quality during the manufacturing process as well as the verification of material integrity throughout the life of a given component. One of the major areas in the power industry where eddy current techniques have been used is for the inspection of installed tubing in various heat exchangers including the steam generators of pressurized water reactor (PWR) nuclear steam supply systems. As increased emphasis is placed upon the operability and safety of these components, test instrumentation has been advanced to improve the efficiency and reliability of inservice inspections. At the same time, plant owners along with manufacturers and inspection service vendors are developing analytical tools for assessing the inspection results. One of the techniques that offers significant potential has been made possible by recent advances in digital technology. The application of digital techniques to the eddy current method offers not only a means to improve the test instrumentation but also an environment whereby other facets of the inservice inspection effort can be enchanced

  5. Access to information technology and willingness to receive text ...

    African Journals Online (AJOL)

    Background. Effective communication is imperative for the delivery and receipt of adequate health care services. Aim. To determine access to information technology and willingness to receive short message service (SMS) text message reminders for childhood immunisation services among mothers in Lagos, Nigeria.

  6. Digital Photonic Receivers for Wireless and Wireline Optical Fiber Transmission Links

    DEFF Research Database (Denmark)

    Guerrero Gonzalez, Neil

    services. The experimental demonstration supported the following transmissions systems: a baseband, 5 Gbps, intensity modulation system employing a directly modulated vertical cavity surface emitting laser (VCSEL), a baseband 20 Gbps non-return-to-zero quadrature phase-shift keying (NRZ-QPSK) system...... receivers in hybrid wireless and wireline optical fiber transmission links. Furthermore, the digital signal processing framework presented in this thesis can be extended to design probabilistic-based digital photonic receivers that can find applications in cognitive heterogeneous reconfigurable optical...

  7. Applying Digital Sensor Technology: A Problem-Solving Approach

    Science.gov (United States)

    Seedhouse, Paul; Knight, Dawn

    2016-01-01

    There is currently an explosion in the number and range of new devices coming onto the technology market that use digital sensor technology to track aspects of human behaviour. In this article, we present and exemplify a three-stage model for the application of digital sensor technology in applied linguistics that we have developed, namely,…

  8. The application of digital technology in community health education

    OpenAIRE

    Wen Ren; Conglin Huang; Ying Liu; Jingjing Ren

    2015-01-01

    With the rapid development of the internet and information technologies, coupled with a variety of digital media, the digital technology has become a conventional method of health education for the general public and has the potential to influence health behaviors. Our aim was to conduct a review of how digital technology projects have been used in the health education and health promotion, as well as the disadvantages and barriers in the process.

  9. Digital Technologies In The Early Primary School Classroom

    OpenAIRE

    Sinclair, Nathalie; Baccaglini-Frank, Anna

    2016-01-01

    Papert's (1980) work with Turtle Geometry offered an early and provocative vision of how digital technologies could be used with young learners. Since then, research on digital technology use has focused on the middle and high school levels. Given the increasing diversity of digital technologies, and their varied underlying pedagogical goals and design choices, Clements' (2002) claim that there is no single effect of the computer on mathematics achievement is as true now as it was a decade ag...

  10. Transitioning towards the Digital Native: Examining Digital Technologies, Video Games, and Learning

    Science.gov (United States)

    Salomon, John

    2010-01-01

    Although digital technologies have become commonplace among people who grew up around them, little is known about the effect that such technology will have on learners or its impact on traditional methods of educational delivery. This dissertation examines how certain technologies affect digital natives and seeks to understand specific…

  11. Beyond Techno-Utopia: Critical Approaches to Digital Health Technologies

    Directory of Open Access Journals (Sweden)

    Deborah Lupton

    2014-12-01

    Full Text Available This editorial presents an overview of digital health technologies, discusses previous research and introduces the contributions to the special issue “Beyond Techno-Utopia: Critical Approaches to Digital Health Technologies”. It is argued that thus far, few critical analyses of digital health technologies have been published in the social science literature, particularly in relation to the newest technologies. While the articles collected here in this special issue have gone some way in offering a critical response to digital health technologies, they represent only a beginning. Many more compelling topics remain to be investigated. The editorial ends with outlining directions for future research in this area.

  12. United States Department of Energy solar receiver technology development

    Science.gov (United States)

    Klimas, P. C.; Diver, R. B.; Chavez, J. M.

    The United States Department of Energy (DOE), through Sandia National Laboratories, has been conducting a Solar Thermal Receiver Technology Development Program, which maintains a balance between analytical modeling, bench and small scale testing, and experimentation conducted at scales representative of commercially-sized equipment. Central receiver activities emphasize molten salt-based systems on large scales and volumetric devices in the modeling and small scale testing. These receivers are expected to be utilized in solar power plants rated between 100 and 200 MW. Distributed receiver research focuses on liquid metal refluxing devices. These are intended to mate parabolic dish concentrators with Stirling cycle engines in the 5 to 25 kW(sub e) power range. The effort in the area of volumetric receivers is less intensive and highly cooperative in nature. A ceramic foam absorber of Sandia design was successfully tested on the 200 kW(sub t) test bed at Plataforma Solar during 1989. Material integrity during the approximately 90-test series was excellent. Significant progress has been made with parabolic dish concentrator-mounted receivers using liquid metals (sodium or a potassium/sodium mixture) as heat transport media. Sandia has successfully solar-tested a pool boiling reflux receiver sized to power a 25 kW Stirling engine. Boiling stability and transient operation were both excellent. This document describes these activities in detail and will outline plans for future development.

  13. Multi-aperture digital coherent combining for free-space optical communication receivers.

    Science.gov (United States)

    Geisler, David J; Yarnall, Timothy M; Stevens, Mark L; Schieler, Curt M; Robinson, Bryan S; Hamilton, Scott A

    2016-06-13

    Space-to-ground optical communication systems can benefit from reducing the size, weight, and power profiles of space terminals. One way of reducing the required power-aperture product on a space platform is to implement effective, but costly, single-aperture ground terminals with large collection areas. In contrast, we present a ground terminal receiver architecture in which many small less-expensive apertures are efficiently combined to create a large effective aperture while maintaining excellent receiver sensitivity. This is accomplished via coherent detection behind each aperture followed by digitization. The digitized signals are then combined in a digital signal processing chain. Experimental results demonstrate lossless coherent combining of four lasercom signals, at power levels below 0.1 photons/bit/aperture.

  14. 47 CFR 15.122 - Closed caption decoder requirements for digital television receivers and converter boxes.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 1 2010-10-01 2010-10-01 false Closed caption decoder requirements for digital television receivers and converter boxes. 15.122 Section 15.122 Telecommunication FEDERAL COMMUNICATIONS... code spaces C2, C3, and G3 is optional. All unsupported graphic symbols in the G3 code space are to be...

  15. DS-CDMA Receiver Based on a Five-Port Technology

    Directory of Open Access Journals (Sweden)

    Elvino S. Sousa

    2005-07-01

    Full Text Available High data rates, low-power consumption, and low complexity will be the most important parameters in the design of the next-generation mobile terminals. In this paper we are introducing a new paradigm in the design of direct sequence spread spectrum receiver by combining analog and digital signal processing. The main difference with respect to the conventional all-digital receiver design approach is that the proposed mixed analog/digital processing results in a symbol rate sampling rather than the high-rate subchip sampling. Analog signal despreading is the key part of the proposed receiver solution, which is based on a five-port device, a passive RF square-law-type device. It is used to perform two important tasks at the same time, namely, the direct conversion and analog despreading. To achieve lower complexity, the proposed receiver uses rectangular instead of pulse-matched despreading at the cost of only a small performance degradation. Also, we propose a new noncoherent pseudonoise (PN code tracking scheme based on error signal generated through the L1 norm. This results in comparable or even better PN code tracking performance than L2 norm circuitry, using less complex hardware. Further, we explore how this technology can be applied in the design of DS-CDMA RAKE receiver for mobile terminals. Depending on how the pilot signal is multiplexed, we propose two types of RAKE receivers. It is shown that under Rayleigh fading channel such receiver structures offer robustness and high performance, while maintaining the low complexity achievable through the five-port device.

  16. Poaching Museum Collections using Digital 3D Technologies

    Directory of Open Access Journals (Sweden)

    Sarah Younan

    2015-12-01

    Full Text Available This paper investigates the creative engagement with digital 3D models of museum artefacts and gives insight into new uses of museum collections enabled by digital scanning, editing and 3D printing technologies. Digital 3D models of museum artefacts are malleable and increasingly easy to use. Additionally, freely available 3D software has made 3D scanning, editing and manufacturing possible for non-specialists. These technologies allow users to create new artworks through the creation and transformation of digital replicas of museum artefacts. Examples of creative works, taken from two case studies that involve the creative use of digital reproductions of museum artefacts are presented in this paper. These projects are illustrative of a larger trend: the digital ‘poaching’ of heritage artefacts. This paper examines how digital 3D technologies can foster creative forms of museum engagement, democratise access to museum collections and engage users with personal forms of museum experience.

  17. [Impact of digital technology on clinical practices: perspectives from surgery].

    Science.gov (United States)

    Zhang, Y; Liu, X J

    2016-04-09

    Digital medical technologies or computer aided medical procedures, refer to imaging, 3D reconstruction, virtual design, 3D printing, navigation guided surgery and robotic assisted surgery techniques. These techniques are integrated into conventional surgical procedures to create new clinical protocols that are known as "digital surgical techniques". Conventional health care is characterized by subjective experiences, while digital medical technologies bring quantifiable information, transferable data, repeatable methods and predictable outcomes into clinical practices. Being integrated into clinical practice, digital techniques facilitate surgical care by improving outcomes and reducing risks. Digital techniques are becoming increasingly popular in trauma surgery, orthopedics, neurosurgery, plastic and reconstructive surgery, imaging and anatomic sciences. Robotic assisted surgery is also evolving and being applied in general surgery, cardiovascular surgery and orthopedic surgery. Rapid development of digital medical technologies is changing healthcare and clinical practices. It is therefore important for all clinicians to purposefully adapt to these technologies and improve their clinical outcomes.

  18. the impact of digital technology revolution on surveying curriculum ...

    African Journals Online (AJOL)

    the impact of digital technology revolution on surveying curriculum review in ... Global Journal of Environmental Sciences ... Also, it focuses on the need to review the current surveying curriculum to meet the technological advancement. Finally ...

  19. Digital Printing Quality Detection and Analysis Technology Based on CCD

    Science.gov (United States)

    He, Ming; Zheng, Liping

    2017-12-01

    With the help of CCD digital printing quality detection and analysis technology, it can carry out rapid evaluation and objective detection of printing quality, and can play a certain control effect on printing quality. It can be said CDD digital printing quality testing and analysis of the rational application of technology, its digital printing and printing materials for a variety of printing equipments to improve the quality of a very positive role. In this paper, we do an in-depth study and discussion based on the CCD digital print quality testing and analysis technology.

  20. Digital technology and human development: A charter for nature conservation

    NARCIS (Netherlands)

    Maffey, G.; Homans, H.; Banks, K.; Arts, K.A.J.

    2015-01-01

    The application of digital technology in conservation holds much potential for advancing the understanding of, and facilitating interaction with, the natural world. In other sectors, digital technology has long been used to engage communities and share information. Human development—which holds

  1. Secondary School Teachers' Approaches to Teaching Composition Using Digital Technology

    Science.gov (United States)

    Wise, Stuart

    2016-01-01

    The music industry in the 21 century uses digital technology in a wide range of applications including in performance, in composition and in recording and publishing. In this article, I consider how the impact of digital technologies may be affecting pedagogical processes adopted by secondary music teachers, particularly in the area of…

  2. A Professional Learning Model Supporting Teachers to Integrate Digital Technologies

    Science.gov (United States)

    Sheffield, Rachel; Blackley, Susan; Moro, Paul

    2018-01-01

    Contemporary teachers have an obligation to support and scaffold students' learning in digital technologies and to do this in authentic contexts. In order for teachers to be successful in this, their own competency in digital technologies needs to be high, and their own 21st century learning skills of communication, collaboration, creativity and…

  3. Digital image technology and a measurement tool in physical models

    CSIR Research Space (South Africa)

    Phelp, David

    2006-05-01

    Full Text Available Advances in digital image technology has allowed us to use accurate, but relatively cost effective technology to measure a number of varied activities in physical models. The capturing and manipulation of high resolution digital images can be used...

  4. Reducing the Digital Divide among Children Who Received Desktop or Hybrid Computers for the Home

    Directory of Open Access Journals (Sweden)

    Gila Cohen Zilka

    2016-06-01

    Full Text Available Researchers and policy makers have been exploring ways to reduce the digital divide. Parameters commonly used to examine the digital divide worldwide, as well as in this study, are: (a the digital divide in the accessibility and mobility of the ICT infrastructure and of the content infrastructure (e.g., sites used in school; and (b the digital divide in literacy skills. In the present study we examined the degree of effectiveness of receiving a desktop or hybrid computer for the home in reducing the digital divide among children of low socio-economic status aged 8-12 from various localities across Israel. The sample consisted of 1,248 respondents assessed in two measurements. As part of the mixed-method study, 128 children were also interviewed. Findings indicate that after the children received desktop or hybrid computers, changes occurred in their frequency of access, mobility, and computer literacy. Differences were found between the groups: hybrid computers reduce disparities and promote work with the computer and surfing the Internet more than do desktop computers. Narrowing the digital divide for this age group has many implications for the acquisition of skills and study habits, and consequently, for the realization of individual potential. The children spoke about self improvement as a result of exposure to the digital environment, about a sense of empowerment and of improvement in their advantage in the social fabric. Many children expressed a desire to continue their education and expand their knowledge of computer applications, the use of software, of games, and more. Therefore, if there is no computer in the home and it is necessary to decide between a desktop and a hybrid computer, a hybrid computer is preferable.

  5. Are Digital Natives a Myth or Reality? University Students' Use of Digital Technologies

    Science.gov (United States)

    Margaryan, Anoush; Littlejohn, Allison; Vojt, Gabrielle

    2011-01-01

    This study investigated the extent and nature of university students' use of digital technologies for learning and socialising. The findings show that students use a limited range of mainly established technologies. Use of collaborative knowledge creation tools, virtual worlds, and social networking sites was low. "Digital natives" and students of…

  6. Redefining Student Affairs through Digital Technology: A Ten-Year Historiography of Digital Technology Use by Student Affairs Administrators

    Science.gov (United States)

    Cabellon, Edmund T.

    2016-01-01

    The student affairs profession is at a crossroads (Torres & Walbert, 2010) given digital technology's growth and the academy's administrative expansion (Bowen, 2013). Student affairs administrators must simultaneously respond to digital technology's implications in students' lives (Kirschner & Karpinski, 2010) and to new state and federal…

  7. From Doing Digital to Being Digital: Exploring Workplace Adoption of Technology in the Age of Digital Disruption

    Science.gov (United States)

    Murdoch, Donna; Fichter, Rachel

    2017-01-01

    In this article, it is explored how digital transformation is reshaping existing conceptions of technology adoption in the workplace and, as part of this, why the adoption of enterprise technology often lags behind consumer technology. The effect of business intractability towards technological advancement is examined. Also, the inability to…

  8. Evaluation of second-generation central receiver technologies

    International Nuclear Information System (INIS)

    Kolb, G.L.; Chavez, J.M.; Klimas, P.; Meinecke, W.; Becker, M.; Kiera, M.

    1993-01-01

    This paper summarizes the results of a study performed by the US and Germany to assess the technical and economic potential of central receiver power plants and to identify the necessary research and development (R ampersand D) activities required to reach demonstration and commercialization. Second generation power plant designs, employing molten-salt and volumetric-air receivers, were assessed at the size of 30 and 100 MWe. The study developed a common guideline and used data from previous system tests and studies. The levelized-energy costs for the second generation plants were estimated and found to be competitive with costs from fossil-fueled power plants. Potential for further cost reductions exists if technical improvements can be introduced successfully in the long term. Additionally, the study presents results of plant reliability and uncertainty analyses. Mid- and long-term technical potentials are described, as well as recommendations for the R ampersand D activities needed to reach the goal of large-scale commercialization. The results of this study have already helped direct research in the US and Europe. For example, the favorable potential for these technologies has led to the Solar Two molten-salt project in the US and the TSA volumetric receiver test in Spain. In addition, early analysis conducted within this study indicated that an advanced thermal storage medium was necessary to achieve favorable economics for the air plant. This led to the design of the thermal storage system currently being tested in Spain. In summary, each of the investigated receiver technologies has mid- and long-term potential for improving plant performance and reducing capital and energy costs (resulting in less than 10 cts/kWh given excellent insolation conditions) in an environmentally safe way and largely independent of fossil-fuel prices

  9. Digital Natives as Preservice Teachers: What Technology Preparation Is Needed?

    Science.gov (United States)

    Lei, Jing

    2009-01-01

    This study focused on "digital natives" as preservice teachers to examine their beliefs, attitudes, and technology experiences and expertise, identify the strengths and weaknesses in their technology knowledge and skills, and explore what technology preparation was needed to prepare them to integrate technology in their future classrooms. Results…

  10. Composing the Layer of Knowledge of Digital Technology in Architecture

    Directory of Open Access Journals (Sweden)

    Johanes Mikhael

    2018-01-01

    Full Text Available The use of digital tools in architectural practice has been evolving significantly. In following such developments, architectural practice has been incorporating digital technology not only to meet the current demand but also to pursue the vast amount of possibilities ahead. However, the integration of digital technology in architectural knowledge has been reasonably operative that produces uncritical understanding, and it tends to put architects as a passive user of technology. This paper argues that there are layers of knowledge that nees to be acknowledged and nourished accordingly in embracing the use of computation tools yet avoiding the overly simplistic.understanding. It attempts to explore the methods of digital technology in archietctural design practices as well as dicussions that follow to create a critical evaluation of its roles and potentials. The review is conducted theoretically in which the use of digital in the design process is explored in such a way to reveal its importance in architectural design methods. The review also crosses beyond the disciplines of architecture to construct more comprehensive understanding that bridges the logic of digital technology and architecture. The resulted map of methods of the digital thus can be used to develop a framework for digital discourse that bridge the operative knowledge of technology to the more critical perspectives.

  11. Can New Digital Technologies Support Parasitology Teaching and Learning?

    Science.gov (United States)

    Jabbar, Abdul; Gasser, Robin B; Lodge, Jason

    2016-07-01

    Traditionally, parasitology courses have mostly been taught face-to-face on campus, but now digital technologies offer opportunities for teaching and learning. Here, we give a perspective on how new technologies might be used through student-centred teaching approaches. First, a snapshot of recent trends in the higher education is provided; then, a brief account is given of how digital technologies [e.g., massive open online courses (MOOCs), flipped classroom (FC), games, quizzes, dedicated Facebook, and digital badges] might promote parasitology teaching and learning in digital learning environments. In our opinion, some of these digital technologies might be useful for competency-based, self-regulated, learner-centred teaching and learning in an online or blended teaching environment. Copyright © 2016 Elsevier Ltd. All rights reserved.

  12. Development And Test of A Digitally Steered Antenna Array for The Navigator GPS Receiver

    Science.gov (United States)

    Pinto, Heitor David; Valdez, Jennifer E.; Winternitz, Luke M. B.; Hassouneh, Munther A.; Price, Samuel R.

    2012-01-01

    Global Positioning System (GPS)-based navigation has become common for low-Earth orbit spacecraft as the signal environment is similar to that on the Earth s surface. The situation changes abruptly, however, for spacecraft whose orbital altitudes exceed that of the GPS constellation. Visibility is dramatically reduced and signals that are present may be very weak and more susceptible to interference. GPS receivers effective at these altitudes require increased sensitivity, which often requires a high-gain antenna. Pointing such an antenna can pose a challenge. One efficient approach to mitigate these problems is the use of a digitally steered antenna array. Such an antenna can optimally allocate gain toward desired signal sources and away from interferers. This paper presents preliminary results in the development and test of a digitally steered antenna array for the Navigator GPS research program at NASA s Goddard Space Flight Center. In particular, this paper highlights the development of an array and front-end electronics, the development and test of a real-time software GPS receiver, and implementation of three beamforming methods for combining the signals from the array. Additionally, this paper discusses the development of a GPS signal simulator which produces digital samples of the GPS L1C/A signals as they would be received by an arbitrary antenna array configuration. The simulator models transmitter and receiver dynamics, near-far and multipath interference, and has been a critical component in both the development and test of the GPS receiver. The GPS receiver system was tested with real and simulated GPS signals. Preliminary results show that performance improvement was achieved in both the weak signal and interference environments, matching analytical predictions. This paper summarizes our initial findings and discusses the advantages and limitations of the antenna array and the various beamforming methods.

  13. Advanced laser sensing receiver concepts based on FPA technology

    International Nuclear Information System (INIS)

    Jacobson, Phillip L.; Petrin, Roger R.; Jolin, John L.; Foy, Bernard R.; Lowrance, J.L.; Renda, George

    2002-01-01

    The ultimate performance of any remote sensor is ideally governed by the hardware signal-to-noise capability and allowed signal-averaging time. In real-world scenarios, this may not be realizable and the limiting factors may suggest the need for more advanced capabilities. Moving from passive to active remote sensors offers the advantage of control over the illumination source, the laser. Added capabilities may include polarization discrimination, instantaneous imaging, range resolution, simultaneous multi-spectral measurement, or coherent detection. However, most advanced detection technology has been engineered heavily towards the straightforward passive sensor requirements, measuring an integrated photon flux. The need for focal plane array technology designed specifically for laser sensing has been recognized for some time, but advances have only recently made the engineering possible. This paper will present a few concepts for laser sensing receiver architectures, the driving specifications behind those concepts, and test/modeling results of such designs.

  14. Development of wide band digital receiver for atmospheric radars using COTS board based SDR

    Science.gov (United States)

    Yasodha, Polisetti; Jayaraman, Achuthan; Thriveni, A.

    2016-07-01

    Digital receiver extracts the received echo signal information, and is a potential subsystem for atmospheric radar, also referred to as wind profiling radar (WPR), which provides the vertical profiles of 3-dimensional wind vector in the atmosphere. This paper presents the development of digital receiver using COTS board based Software Defined Radio technique, which can be used for atmospheric radars. The developmental work is being carried out at National Atmospheric Research Laboratory (NARL), Gadanki. The digital receiver consists of a commercially available software defined radio (SDR) board called as universal software radio peripheral B210 (USRP B210) and a personal computer. USRP B210 operates over a wider frequency range from 70 MHz to 6 GHz and hence can be used for variety of radars like Doppler weather radars operating in S/C bands, in addition to wind profiling radars operating in VHF, UHF and L bands. Due to the flexibility and re-configurability of SDR, where the component functionalities are implemented in software, it is easy to modify the software to receive the echoes and process them as per the requirement suitable for the type of the radar intended. Hence, USRP B210 board along with the computer forms a versatile digital receiver from 70 MHz to 6 GHz. It has an inbuilt direct conversion transceiver with two transmit and two receive channels, which can be operated in fully coherent 2x2 MIMO fashion and thus it can be used as a two channel receiver. Multiple USRP B210 boards can be synchronized using the pulse per second (PPS) input provided on the board, to configure multi-channel digital receiver system. RF gain of the transceiver can be varied from 0 to 70 dB. The board can be controlled from the computer via USB 3.0 interface through USRP hardware driver (UHD), which is an open source cross platform driver. The USRP B210 board is connected to the personal computer through USB 3.0. Reference (10 MHz) clock signal from the radar master oscillator

  15. Low-sampling-rate ultra-wideband digital receiver using equivalent-time sampling

    KAUST Repository

    Ballal, Tarig

    2014-09-01

    In this paper, we propose an all-digital scheme for ultra-wideband symbol detection. In the proposed scheme, the received symbols are sampled many times below the Nyquist rate. It is shown that when the number of symbol repetitions, P, is co-prime with the symbol duration given in Nyquist samples, the receiver can sample the received data P times below the Nyquist rate, without loss of fidelity. The proposed scheme is applied to perform channel estimation and binary pulse position modulation (BPPM) detection. Results are presented for two receivers operating at two different sampling rates that are 10 and 20 times below the Nyquist rate. The feasibility of the proposed scheme is demonstrated in different scenarios, with reasonable bit error rates obtained in most of the cases.

  16. Low-sampling-rate ultra-wideband digital receiver using equivalent-time sampling

    KAUST Repository

    Ballal, Tarig; Al-Naffouri, Tareq Y.

    2014-01-01

    In this paper, we propose an all-digital scheme for ultra-wideband symbol detection. In the proposed scheme, the received symbols are sampled many times below the Nyquist rate. It is shown that when the number of symbol repetitions, P, is co-prime with the symbol duration given in Nyquist samples, the receiver can sample the received data P times below the Nyquist rate, without loss of fidelity. The proposed scheme is applied to perform channel estimation and binary pulse position modulation (BPPM) detection. Results are presented for two receivers operating at two different sampling rates that are 10 and 20 times below the Nyquist rate. The feasibility of the proposed scheme is demonstrated in different scenarios, with reasonable bit error rates obtained in most of the cases.

  17. Advanced digital image archival system using MPEG technologies

    Science.gov (United States)

    Chang, Wo

    2009-08-01

    Digital information and records are vital to the human race regardless of the nationalities and eras in which they were produced. Digital image contents are produced at a rapid pace from cultural heritages via digitalization, scientific and experimental data via high speed imaging sensors, national defense satellite images from governments, medical and healthcare imaging records from hospitals, personal collection of photos from digital cameras. With these mass amounts of precious and irreplaceable data and knowledge, what standards technologies can be applied to preserve and yet provide an interoperable framework for accessing the data across varieties of systems and devices? This paper presents an advanced digital image archival system by applying the international standard of MPEG technologies to preserve digital image content.

  18. Technological innovations in mental healthcare: harnessing the digital revolution.

    Science.gov (United States)

    Hollis, Chris; Morriss, Richard; Martin, Jennifer; Amani, Sarah; Cotton, Rebecca; Denis, Mike; Lewis, Shôn

    2015-04-01

    Digital technology has the potential to transform mental healthcare by connecting patients, services and health data in new ways. Digital online and mobile applications can offer patients greater access to information and services and enhance clinical management and early intervention through access to real-time patient data. However, substantial gaps exist in the evidence base underlying these technologies. Greater patient and clinician involvement is needed to evaluate digital technologies and ensure they target unmet needs, maintain public trust and improve clinical outcomes. Royal College of Psychiatrists.

  19. Bridging storytelling traditions with digital technology.

    Science.gov (United States)

    Cueva, Melany; Kuhnley, Regina; Revels, Laura J; Cueva, Katie; Dignan, Mark; Lanier, Anne P

    2013-01-01

    The purpose of this project was to learn how Community Health Workers (CHWs) in Alaska perceived digital storytelling as a component of the "Path to Understanding Cancer" curriculum and as a culturally respectful tool for sharing cancer-related health messages. A pre-course written application, end-of-course written evaluation, and internet survey informed this project. Digital storytelling was included in seven 5-day cancer education courses (May 2009-2012) in which 67 CHWs each created a personal 2-3 minute cancer-related digital story. Participant-chosen digital story topics included tobacco cessation, the importance of recommended cancer screening exams, cancer survivorship, loss, grief and end-of-life comfort care, and self-care as patient care providers. All participants completed an end-of-course written evaluation. In July 2012, contact information was available for 48 participants, of whom 24 completed an internet survey. All 67 participants successfully completed a digital story which they shared and discussed with course members. On the written post-course evaluation, all participants reported that combining digital storytelling with cancer education supported their learning and was a culturally respectful way to provide health messages. Additionally, 62 of 67 CHWs reported that the course increased their confidence to share cancer information with their communities. Up to 3 years post-course, all 24 CHW survey respondents reported they had shown their digital story. Of note, 23 of 24 CHWs also reported change in their own behavior as a result of the experience. All CHWs, regardless of computer skills, successfully created a digital story as part of the cancer education course. CHWs reported that digital stories enhanced their learning and were a culturally respectful way to share cancer-related information. Digital storytelling gave the power of the media into the hands of CHWs to increase their cancer knowledge, facilitate patient and community cancer

  20. Bridging storytelling traditions with digital technology

    Directory of Open Access Journals (Sweden)

    Melany Cueva

    2013-08-01

    Full Text Available Objective. The purpose of this project was to learn how Community Health Workers (CHWs in Alaska perceived digital storytelling as a component of the “Path to Understanding Cancer” curriculum and as a culturally respectful tool for sharing cancer-related health messages. Design. A pre-course written application, end-of-course written evaluation, and internet survey informed this project. Methods. Digital storytelling was included in seven 5-day cancer education courses (May 2009–2012 in which 67 CHWs each created a personal 2–3 minute cancer-related digital story. Participant-chosen digital story topics included tobacco cessation, the importance of recommended cancer screening exams, cancer survivorship, loss, grief and end-of-life comfort care, and self-care as patient care providers. All participants completed an end-of-course written evaluation. In July 2012, contact information was available for 48 participants, of whom 24 completed an internet survey. Results. All 67 participants successfully completed a digital story which they shared and discussed with course members. On the written post-course evaluation, all participants reported that combining digital storytelling with cancer education supported their learning and was a culturally respectful way to provide health messages. Additionally, 62 of 67 CHWs reported that the course increased their confidence to share cancer information with their communities. Up to 3 years post-course, all 24 CHW survey respondents reported they had shown their digital story. Of note, 23 of 24 CHWs also reported change in their own behaviour as a result of the experience. Conclusions. All CHWs, regardless of computer skills, successfully created a digital story as part of the cancer education course. CHWs reported that digital stories enhanced their learning and were a culturally respectful way to share cancer-related information. Digital storytelling gave the power of the media into the hands of CHWs

  1. Augmented Ontologies: The Question Concerning Digital Technology and Projectual Humanism

    OpenAIRE

    Gualeni, Stefano

    2014-01-01

    markdownabstract__Abstract__ The values of Western culture are conducive to spending a considerable amount of resources on the development of computer games, digital social networks, special effects for movies, et cetera (Bolter, 2003). With the increasingly more prominent role of digital media1 in the global economy as well as their progressively saturating involvement in social processes and practices, the study and development of digital technologies of representation and communication man...

  2. The Three-dimensional Digital Factory for Shipbuilding Technology Research

    Directory of Open Access Journals (Sweden)

    Xu Wei

    2016-01-01

    Full Text Available The three-dimensional digital factory technology research is the hotspot in shipbuilding recently. The three-dimensional digital factory technology not only focus on design the components of the product, but also discuss on the simulation and analyses of the production process.Based on the three-dimensional model, the basic data layer, application control layer and the presentation layer of hierarchical structure are established in the three-dimensional digital factory of shipbuilding in this paper. And the key technologies of three-dimensional digital factory of shipbuilding are analysed. Finally, a case study is applied and the results show that the three-dimensional digital factory will play an important role in the future.

  3. A review of digital radiography technology for valve inspection

    International Nuclear Information System (INIS)

    Stoev, K.; Guerout, F.M.; Horn, D.

    2008-01-01

    There are thousands of valves in a nuclear power plant (NPP) used for control, safety and checks in various plant systems, so there is a well-identified need for fast and reliable inspection and diagnostics of valves. Digital radiography can provide considerable improvements to the inspection and testing procedures for valves in comparison to classical film radiography. These improvements can lead to significant financial advantages by providing real-time inspection results, significantly reduced inspection and decision-making time, and reduced operational cost. Digital image processing, including digital image enhancement, digital archiving, and digital communication of the images and the results, is also a considerable advantage over classical film radiography technology. Another advantage of digital radiography technology is the improved safety and the reduced environmental impact due to reduced exposure/test times, use of smaller exclusion zones, elimination of chemical processing, and absence of disposable materials. This paper reviews the existing technology and evaluates the potential of digital radiography for inspection and diagnostics of valves. Station needs and requirements are assessed, and the safety, environmental and economical constraints of digital radiography techniques estimated. The advantages and disadvantages of different digital radiography equipment are compared, and their limitations and characteristics studied. (author)

  4. Colloquium: Digital Technologies--Help or Hindrance for the Humanities?

    Science.gov (United States)

    Barker, Elton; Bissell, Chris; Hardwick, Lorna; Jones, Allan; Ridge, Mia; Wolffe, John

    2012-01-01

    This article offers reflections arising from a recent colloquium at the Open University on the implications of the development of digital humanities for research in arts disciplines, and also for their interactions with computing and technology. Particular issues explored include the ways in which the digital turn in humanities research is also a…

  5. Debating Digital Childhoods: Questions Concerning Technologies, Economies and Determinisms

    Science.gov (United States)

    Gibbons, Andrew

    2015-01-01

    The learning child, the child that is the object of interest through modernity and into mutated modernity, in the knowledge economy, is a digital age identity of great interest. Talk about childhood and the digital age invokes a range of questions about what is happening at this time and with these technologies and that creates more or less of a…

  6. A comparison of digital mammography detectors and emerging technology

    International Nuclear Information System (INIS)

    Diffey, J.L.

    2015-01-01

    The overall diagnostic accuracy of digital mammography in the context of screening has been shown to be similar or slightly better than screen-film mammography. However, digital mammography encompasses both Computed Radiography (CR) and integrated Digital Radiography (DR) and there is increasing evidence to suggest that differences in detector technology are associated with variations in cancer detection rate, dose and image quality. These differences are examined in detail. Although digital mammography offers many advantages compared to screen-film, there are still some limitations with its use as a screening tool and reduced cancer detection in dense breasts remains an issue. Digital mammography detectors have paved the way for emerging technologies which may offer improvements. Taking the definition of mammography to only include X-ray imaging of the breast, this article focuses on tomosynthesis, contrast-enhanced digital mammography, stereoscopic mammography and dedicated breast computed tomography. Advanced software applications such as Computed Aided Detection (CAD) and quantitative breast density assessment are also presented. The benefits and limitations of each technique are discussed. - Highlights: • Digital detector technology affects cancer detection rate, dose and image quality. • Digital detectors have facilitated new technologies such as tomosynthesis. • 3-D techniques reduce superimposition and increase cancer detection in dense breasts. • Contrast-enhanced mammography demonstrates improved sensitivity and specificity.

  7. Aligning Digital Video Technology with Game Pedagogy in Physical Education

    Science.gov (United States)

    Koekoek, Jeroen; van der Mars, Hans; van der Kamp, John; Walinga, Wytse; van Hilvoorde, Ivo

    2018-01-01

    The rapid development of digital technology has expanded the prospects and promises for its application in physical education programs. Physical educators are becoming increasingly interested in technology but often remain inadequately equipped to effectively integrate these technological resources in their daily practice, and/or lack the…

  8. Digital Learning Resources and Ubiquitous Technologies in Education

    Science.gov (United States)

    Camilleri, Mark Anthony; Camilleri, Adriana Caterina

    2017-01-01

    This research explores the educators' attitudes and perceptions about their utilisation of digital learning technologies. The methodology integrates measures from "the pace of technological innovativeness" and the "technology acceptance model" to understand the rationale for further ICT investment in compulsory education. A…

  9. The Digital Literacy Debate: An Investigation of Digital Propensity and Information and Communication Technology

    Science.gov (United States)

    Nasah, Angelique; DaCosta, Boaventura; Kinsell, Carolyn; Seok, Soonhwa

    2010-01-01

    Research suggests students' use of information and communication technology (ICT) may be more a matter of digital literacy and access rather than a generational trait. We sought to identify ICT preferences of post-secondary students (N = 580) through a Digital Propensity Index (DPI), investigating communication methods, Internet practices and the…

  10. Effective Use of Digital Technologies of High School Teachers as Digital Immigrants in Six Rural Public Schools

    Science.gov (United States)

    Pattee, Andy

    2012-01-01

    Problem: A widening experiential gap of effective use of technology in K-12 schools between "digital immigrants" and "digital natives" (Prensky, 2001) is becoming more evident as digital natives become classroom teachers and showcase pedagogical strategies with digital technologies. There is a dearth of research on digital…

  11. DISA: an African Perspective on Digital Technology | Pickover ...

    African Journals Online (AJOL)

    ... the digital surrogate, separating informational content from physical medium and ... of poor storage environments typical of the tropical and sub-tropical climates of ... technology in South Africa with due consideration to the ethical issues and ...

  12. Characterization of a symbol rate timing recovery technique for a 2B1Q digital receiver

    Science.gov (United States)

    Aboulnasr, T.; Hage, M.; Sayar, B.; Aly, S.

    1994-02-01

    This paper presents a study of several implementations of the Mueller and Muller symbol rate timing recovery algorithm for ISDN transmission over digital subscriber loops (DSL). Implementations of this algorithm using various estimates of a specified timing function are investigated. It will be shown that despite the fact that all of the estimates considered are derived based on one set of conditions, their performance varies widely in a real system. The intrinsic properties of these estimates are first analyzed, then their performance on real subscriber loops is studied through extensive simulations of a practical digital receiver. The effect of various system parameters such as channel distortion and additive noise are included. Possible sources of convergence problems are also identified and corrective action proposed.

  13. Digital bus technology in new coal-fired plants

    Energy Technology Data Exchange (ETDEWEB)

    Blaney, J.; Murray, J. [Emerson Process Management (United States)

    2007-10-15

    The main issues associated with including digital bus technology such as Foundation fieldbus, Profibus-DP or DeviceNet, in a coal-fired power plant are deciding which systems to install and determining how to implement it. Although still new, digital bus experiences to date have shown that the technology performs solidly and when wiring best practices are followed a significantly shorted commissioning cycle can be achieved. 1 fig., 2 tabs.

  14. CONTEMPORARY DIGITAL TECHNOLOGIES AND INNOVATIONS IN HUMAN INTELLIGENCE

    Directory of Open Access Journals (Sweden)

    Riabtseva, N.K.

    2017-09-01

    Full Text Available New digital technologies not only “change language” (David Cristal, but also “upgrade” human intelligence making it perform new and uncommon operations. The present paper is an analysis and a survey of most prominent innovations in human intelligence, which are instigated by the latest digital information technologies. These innovations include, according to the point of view of outstanding specialists in contemporary digital technologies, such operations as multitasking, serendipity, connectivity, hypermodality, visuality, and cybersemiotic convergence of objective and virtual reality. The paper is based on the data presented in the publications of such outstanding “digital” specialists as Larry Rosen, Jay David Bolter, Steven Downes, Jay Lemke, Gunther Kress, Soren Brier, etc. In their works they particularly stress the impact of digital technologies and internet communication on all spheres of human activities, their role in the inner psychological and mental states, in professional and educational domain, as well as the importance of their investigation and a gap between the intensive development of digital technologies and their insufficient usage in scientific, didactic, social and cultural life. Special attention in the paper focuses on the tendency towards visualization in the global information flows and its role in information processing and knowledge transfer. The paper particularly stresses the fact that the impact of contemporary digital technologies on all spheres of human activities, including the intellectual one, needs further and profound investigation.

  15. Digital video and audio broadcasting technology a practical engineering guide

    CERN Document Server

    Fischer, Walter

    2010-01-01

    Digital Video and Audio Broadcasting Technology - A Practical Engineering Guide' deals with all the most important digital television, sound radio and multimedia standards such as MPEG, DVB, DVD, DAB, ATSC, T-DMB, DMB-T, DRM and ISDB-T. The book provides an in-depth look at these subjects in terms of practical experience. In addition it contains chapters on the basics of technologies such as analog television, digital modulation, COFDM or mathematical transformations between time and frequency domains. The attention in the respective field under discussion is focussed on aspects of measuring t

  16. Developing Digital Technologies for Undergraduate University Mathematics

    DEFF Research Database (Denmark)

    Triantafyllou, Eva; Timcenko, Olga

    2013-01-01

    Our research effort presented in this paper relates with developing digital tools for mathematics education at undergraduate university level. It focuses specifically on studies where mathematics is not a core subject but it is very important in order to cope with core subjects. For our design, we...... requirements for the development of digital tools that support mathematics teaching and learning at university level....... during lectures and exercise time. During these observations we were able to investigate how the applets were used in practice but also to get insight in the challenges that the students face during mathematics learning. These findings together with student feedback inspire the next round of design...

  17. Digital literacy and problem solving in technology-rich environments

    Directory of Open Access Journals (Sweden)

    Vesna Dolničar

    2015-07-01

    Full Text Available Rapid development and progress, as well as the growing presence of information and communications technologies dictate the need for more highly developed digital skills in individuals. The paper focuses on the concepts of digital skills and problem solving in technology-rich environments. It examines these on the basis of empirical data obtained in the international study PIAAC. The introductory part presents an overview of the literature and the results of previous research in the field of measurement of digital skills, and data on the use of information society services among the EU Member States. The second part of the article refers to the results obtained in the study PIAAC. The results, confirmed by the results of other studies, showed the impact of age and education level on the problem solving in technology-rich environments. Article concludes with suggestions for improving the current state of integration of all population groups in training programs in the field of digital skills.

  18. The New Digital-Receiver-Based System for Antiproton Beam Diagnostics

    CERN Document Server

    Angoletta, Maria Elena; Ludwig, M; Marqversen, O; Pedersen, F

    2001-01-01

    An innovative system to measure antiproton beam intensity, momentum spread and mean momentum in CERN's Antiproton Decelerator (AD) is described. This system is based on a state-of-the-art Digital Receiver (DRX) board, consisting of 8 Digital Down-Converter (DDC) chips and one Digital Signal Processor (DSP). An ultra-low-noise, wide-band AC beam transformer (0.2 MHz - 30 MHz) is used to measure AC beam current modulation. For bunched beams, the intensity is obtained by measuring the amplitude of the fundamental and second RF Fourier components. On the magnetic plateaus the beam is debunched for stochastic or electron cooling and longitudinal beam properties (intensity, momentum spread and mean momentum) are measured by FFT-based spectral analysis of Schottky signals. The system thus provides real time information characterising the machine performance; it has been used for troubleshooting and to fine-tune the AD, thus achieving further improved performances. This system has been operating since May 2000 and ty...

  19. Digital airborne camera introduction and technology

    CERN Document Server

    Sandau, Rainer

    2014-01-01

    The last decade has seen great innovations on the airborne camera. This book is the first ever written on the topic and describes all components of a digital airborne camera ranging from the object to be imaged to the mass memory device.

  20. Joint OSNR monitoring and modulation format identification in digital coherent receivers using deep neural networks.

    Science.gov (United States)

    Khan, Faisal Nadeem; Zhong, Kangping; Zhou, Xian; Al-Arashi, Waled Hussein; Yu, Changyuan; Lu, Chao; Lau, Alan Pak Tao

    2017-07-24

    We experimentally demonstrate the use of deep neural networks (DNNs) in combination with signals' amplitude histograms (AHs) for simultaneous optical signal-to-noise ratio (OSNR) monitoring and modulation format identification (MFI) in digital coherent receivers. The proposed technique automatically extracts OSNR and modulation format dependent features of AHs, obtained after constant modulus algorithm (CMA) equalization, and exploits them for the joint estimation of these parameters. Experimental results for 112 Gbps polarization-multiplexed (PM) quadrature phase-shift keying (QPSK), 112 Gbps PM 16 quadrature amplitude modulation (16-QAM), and 240 Gbps PM 64-QAM signals demonstrate OSNR monitoring with mean estimation errors of 1.2 dB, 0.4 dB, and 1 dB, respectively. Similarly, the results for MFI show 100% identification accuracy for all three modulation formats. The proposed technique applies deep machine learning algorithms inside standard digital coherent receiver and does not require any additional hardware. Therefore, it is attractive for cost-effective multi-parameter estimation in next-generation elastic optical networks (EONs).

  1. Engaging, Designing and Making Digital Technologies

    DEFF Research Database (Denmark)

    Vertesi, Janet; Ribes, David; Forlano, Laura

    2017-01-01

    Science and Technology Studies (STS) is a flourishing interdisciplinary field that examines the transformative power of science and technology to arrange and rearrange contemporary societies. The Handbook of Science and Technology Studies provides a comprehensive and authoritative overview......, agriculture, security, disasters, environmental justice, and climate change....

  2. incorporating digital technology in the teaching and learning

    African Journals Online (AJOL)

    Incorporating the latest digital technology into traditional language teaching systems has opened up a wealth of multimedia and interactive applications available to bring teaching methods into the 21st century. In the last 10 years, the world has experienced a sudden increase of technology, and this has had a lot of impact ...

  3. Next generation digital microfluidic technology: Electrophoresis of charged droplets

    Energy Technology Data Exchange (ETDEWEB)

    Im, Do Jin [Pukyong National University, Busan (Korea, Republic of)

    2015-06-15

    Contact charging of a conducting droplet in a dielectric medium is introduced as a novel and useful digital microfluidic technology as well as an interesting scientific phenomenon. The history of this phenomenon, starting from original observations to its interpretations and applications, is presented. The basic principle of the droplet contact charging is also presented. Several fundamental aspects of the droplet contact charging from view points of electrochemistry, surface science, electrocoalescence, and electrohydrodynamics are mentioned. Some promising results for future applications and potential features as a next generation digital microfluidic technology are discussed, especially for 3D organ printing. Finally, implications and significance of the proposed technology for chemical engineering community are discussed.

  4. Technological Implications for Assessment Ecosystems: Opportunities for Digital Technology to Advance Assessment

    Science.gov (United States)

    Behrens, John T.; DiCerbo, Kristen E.

    2014-01-01

    Background: It would be easy to think the technological shifts in the digital revolution are simple incremental progressions in societal advancement. However, the nature of digital technology is resulting in qualitative differences in nearly all parts of daily life. Purpose: This paper investigates how the new possibilities for understanding,…

  5. Digital technologies in occupational therapy and physiotherapy undergraduate and postgraduate education: a scoping review protocol.

    Science.gov (United States)

    Olivier, Benita; Verdonck, Michele; Casteleijn, Daleen

    2017-11-01

    How have digital technologies been used in occupational therapy and physiotherapy undergraduate and postgraduate education?Specifically, the objective of this scoping review is to present an overview of research on the use of digital technologies in terms of type of digital technology used, pedagogy associated with the use of digital technology, subject/topic/area of application, experiences/perception of digital technology used, outcomes of the digital technology used and challenges to the use of digital technologies in occupational therapy and physiotherapy undergraduate and postgraduate education.

  6. Digital Technology, Schools and Teachers' Workplace Learning: Policy, Practice and Identity. Digital Education and Learning

    Science.gov (United States)

    Phillips, Michael

    2016-01-01

    This book advances an alternative reading of the social, political and cultural issues surrounding schools and technology and develops a comprehensive overview of the interplay between policy, practice and identity in school workplaces. It explores how digital technologies have become an integral element of the politics and socially negotiated…

  7. Digital Microdroplet Ejection Technology-Based Heterogeneous Objects Prototyping

    OpenAIRE

    Li, Na; Yang, Jiquan; Feng, Chunmei; Yang, Jianfei; Zhu, Liya; Guo, Aiqing

    2016-01-01

    An integrate fabrication framework is presented to build heterogeneous objects (HEO) using digital microdroplets injecting technology and rapid prototyping. The heterogeneous materials part design and manufacturing method in structure and material was used to change the traditional process. The net node method was used for digital modeling that can configure multimaterials in time. The relationship of material, color, and jetting nozzle was built. The main important contributions are to combi...

  8. Iterative Signal Processing for Mitigation of Analog-to-Digital Converter Clipping Distortion in Multiband OFDMA Receivers

    Directory of Open Access Journals (Sweden)

    Markus Allén

    2012-01-01

    Full Text Available In modern wideband communication receivers, the large input-signal dynamics is a fundamental problem. Unintentional signal clipping occurs, if the receiver front-end with the analog-to-digital interface cannot respond to rapidly varying conditions. This paper discusses digital postprocessing compensation of such unintentional clipping in multiband OFDMA receivers. The proposed method iteratively mitigates the clipping distortion by exploiting the symbol decisions. The performance of the proposed method is illustrated with various computer simulations and also verified by concrete laboratory measurements with commercially available analog-to-digital hardware. It is shown that the clipping compensation algorithm implemented in a turbo decoding OFDM receiver is able to remove almost all the clipping distortion even under significant clipping in fading channel circumstances. That is to say, it is possible to nearly recover the receiver performance to the level, which would be achieved in the equivalent nonclipped situation.

  9. Global orbit feedback utilizing analog and digital technologies

    International Nuclear Information System (INIS)

    Singh, O.; Tang, Y.; Ramamoorthy, S.; Krinsky, S.; Yu, L.H.

    1997-01-01

    At the NSLS, an analog global orbit feedback system is used in regular operations, and a digital global orbit feedback system is available in machine physics studies on the X-Ray Ring. Here, the authors discuss the relative merits of utilizing analog and digital technology in orbit feedback. Results of experiments are reported characterizing the performance of the analog and digital systems when operated individually or together. They give their thoughts on plans for future development of the orbit feedback systems at the NSLS

  10. Optical timing receiver for the NASA Spaceborne Ranging System. Part II: high precision event-timing digitizer

    Energy Technology Data Exchange (ETDEWEB)

    Leskovar, Branko; Turko, Bojan

    1978-08-01

    Position-resolution capabilities of the NASA Spaceborne Laser Ranging System are essentially determined by the timeresolution capabilities of its optical timing receiver. The optical timing receiver consists of a fast photoelectric device; (e.g., photomultiplier or an avalanche photodiode detector), a timing discriminator, a high-precision event-timing digitizer, and a signal-processing system. The time-resolution capabilities of the receiver are determined by the photoelectron time spread of the photoelectric device, the time walk and resolution characteristics of the timing discriminator, and the resolution of the event-timing digitizer. It is thus necessary to evaluate available fast photoelectronic devices with respect to the time-resolution capabilities, and to develop a very low time walk timing discriminator and a high-resolution event-timing digitizer to be used in the high-resolution spaceborne laser ranging system receiver. This part of the report describes the development of a high precision event-timing digitizer. The event-timing digitizer is basically a combination of a very accurate high resolution real time digital clock and an interval timer. The timing digitizer is a high resolution multiple stop clock, counting the time up to 131 days in 19.5 ps increments.

  11. How do digital platforms for ideas, technologies, and knowledge transfer act as enablers for digital transformation?

    OpenAIRE

    Hossain, Mokter; Lassen, Astrid Heidemann

    2017-01-01

    Digital platforms, along with their supporting tools and features, have emerged as important enablers for firms to leverage distributed knowledge (Sedera et al., 2016), because they offer new ways for organizations to collaborate with the external environment for ideas, technologies, and knowledge. Indeed, studies have explored efforts to promote such collaboration on digital platforms with various popular names, such as crowdsourcing platforms (Afuah & Tucci, 2012), open innovation platf...

  12. Digital Technologies Supporting Person-Centered Integrated Care - A Perspective.

    Science.gov (United States)

    Øvretveit, John

    2017-09-25

    Shared electronic health and social care records in some service systems are already showing some of the benefits of digital technology and digital data for integrating health and social care. These records are one example of the beginning "digitalisation" of services that gives a glimpse of the potential of digital technology and systems for building coordinated and individualized integrated care. Yet the promise has been greater than the benefits, and progress has been slow compared to other industries. This paper describes for non-technical readers how information technology was used to support integrated care schemes in six EU services, and suggests practical ways forward to use the new opportunities to build person-centered integrated care.

  13. Multi-DSP and FPGA based Multi-channel Direct IF/RF Digital receiver for atmospheric radar

    Science.gov (United States)

    Yasodha, Polisetti; Jayaraman, Achuthan; Kamaraj, Pandian; Durga rao, Meka; Thriveni, A.

    2016-07-01

    Modern phased array radars depend highly on digital signal processing (DSP) to extract the echo signal information and to accomplish reliability along with programmability and flexibility. The advent of ASIC technology has made various digital signal processing steps to be realized in one DSP chip, which can be programmed as per the application and can handle high data rates, to be used in the radar receiver to process the received signal. Further, recent days field programmable gate array (FPGA) chips, which can be re-programmed, also present an opportunity to utilize them to process the radar signal. A multi-channel direct IF/RF digital receiver (MCDRx) is developed at NARL, taking the advantage of high speed ADCs and high performance DSP chips/FPGAs, to be used for atmospheric radars working in HF/VHF bands. Multiple channels facilitate the radar t be operated in multi-receiver modes and also to obtain the wind vector with improved time resolution, without switching the antenna beam. MCDRx has six channels, implemented on a custom built digital board, which is realized using six numbers of ADCs for simultaneous processing of the six input signals, Xilinx vertex5 FPGA and Spartan6 FPGA, and two ADSPTS201 DSP chips, each of which performs one phase of processing. MCDRx unit interfaces with the data storage/display computer via two gigabit ethernet (GbE) links. One of the six channels is used for Doppler beam swinging (DBS) mode and the other five channels are used for multi-receiver mode operations, dedicatedly. Each channel has (i) ADC block, to digitize RF/IF signal, (ii) DDC block for digital down conversion of the digitized signal, (iii) decoding block to decode the phase coded signal, and (iv) coherent integration block for integrating the data preserving phase intact. ADC block consists of Analog devices make AD9467 16-bit ADCs, to digitize the input signal at 80 MSPS. The output of ADC is centered around (80 MHz - input frequency). The digitized data is fed

  14. Streaming and digital media understanding the business and technology

    CERN Document Server

    Rayburn, Dan

    2007-01-01

    Steaming and Digital Media gives you a concise and direct analysis to understand a scalable, profitable venture, as well as the common and hidden pitfalls to avoid in your business. By focusing on both the business implications and technical differences between online video and traditional broadcast distribution, you will learn how to gain significant time-to-market and cost-saving advantages by effectively using streaming and digital media technologies. As part of the NAB Executive Technology Briefing series, the book is geared towards the manager or executive and no technical prerequisite is

  15. Using immersive media and digital technology to communicate Earth Science

    Science.gov (United States)

    Kapur, Ravi

    2016-04-01

    A number of technologies in digital media and interactivity have rapidly advanced and are now converging to enable rich, multi-sensoral experiences which create opportunities for both digital art and science communication. Techniques used in full-dome film-making can now be deployed in virtual reality experiences; gaming technologies can be utilised to explore real data sets; and collaborative interactivity enable new forms of public artwork. This session will explore these converging trends through a number of emerging and forthcoming projects dealing with Earth science, climate change and planetary science.

  16. Digital video technologies and their network requirements

    Energy Technology Data Exchange (ETDEWEB)

    R. P. Tsang; H. Y. Chen; J. M. Brandt; J. A. Hutchins

    1999-11-01

    Coded digital video signals are considered to be one of the most difficult data types to transport due to their real-time requirements and high bit rate variability. In this study, the authors discuss the coding mechanisms incorporated by the major compression standards bodies, i.e., JPEG and MPEG, as well as more advanced coding mechanisms such as wavelet and fractal techniques. The relationship between the applications which use these coding schemes and their network requirements are the major focus of this study. Specifically, the authors relate network latency, channel transmission reliability, random access speed, buffering and network bandwidth with the various coding techniques as a function of the applications which use them. Such applications include High-Definition Television, Video Conferencing, Computer-Supported Collaborative Work (CSCW), and Medical Imaging.

  17. Technology tools to support reading in the digital age.

    Science.gov (United States)

    Biancarosa, Gina; Griffiths, Gina G

    2012-01-01

    Advances in digital technologies are dramatically altering the texts and tools available to teachers and students. These technological advances have created excitement among many for their potential to be used as instructional tools for literacy education. Yet with the promise of these advances come issues that can exacerbate the literacy challenges identified in the other articles in this issue. In this article Gina Biancarosa and Gina Griffiths characterize how literacy demands have changed in the digital age and how challenges identified in other articles in the issue intersect with these new demands. Rather than seeing technology as something to be fit into an already crowded education agenda, Biancarosa and Griffiths argue that technology can be conceptualized as affording tools that teachers can deploy in their quest to create young readers who possess the higher levels of literacy skills and background knowledge demanded by today's information-based society. Biancarosa and Griffiths draw on research to highlight some of the ways technology has been used to build the skills and knowledge needed both by children who are learning to read and by those who have progressed to reading to learn. In their review of the research, Biancarosa and Griffiths focus on the hardware and software used to display and interface with digital text, or what they term e-reading technology. Drawing on studies of e-reading technology and computer technology more broadly, they also reflect on the very real, practical challenges to optimal use of e-reading technology. The authors conclude by presenting four recommendations to help schools and school systems meet some of the challenges that come with investing in e-reading technology: use only technologies that support Universal Design for Learning; choose evidence-based tools; provide technology users with systemic supports; and capitalize on the data capacities and volume of information that technology provides.

  18. Bringing Superconductor Digital Technology to the Market Place

    Science.gov (United States)

    Nisenoff, Martin

    The unique properties of superconductivity can be exploited to provide the ultimate in electronic technology for systems such as ultra-precise analogue-to-digital and digital-to-analogue converters, precise DC and AC voltage standards, ultra high speed logic circuits and systems (both digital and hybrid analogue-digital systems), and very high throughput network routers and supercomputers which would have superior electrical performance at lower overall electrical power consumption compared to systems with comparable performance which are fabricated using conventional room temperature technologies. This potential for high performance electronics with reduced power consumption would have a positive impact on slowing the increase in the demand for electrical utility power by the information technology community on the overall electrical power grid. However, before this technology can be successfully brought to the commercial market place, there must be an aggressive investment of resources and funding to develop the required infrastructure needed to yield these high performance superconductor systems, which will be reliable and available at low cost. The author proposes that it will require a concerted effort by the superconductor and cryogenic communities to bring this technology to the commercial market place or make it available for widespread use in scientific instrumentation.

  19. Canadian community pharmacists' use of digital health technologies in practice.

    Science.gov (United States)

    Leung, Valerie; Tharmalingam, Sukirtha; Cooper, Janet; Charlebois, Maureen

    2016-01-01

    In 2010, a pan-Canadian study on the current state and benefits of provincial drug information systems (DIS) found that substantial benefits were being realized and that pharmacists perceived DIS to be a valuable tool in the evolving models of pharmacy practice. To understand changes in digital health and the impact on practice since that time, a survey of community pharmacists in Canada was conducted. In 2014, Canada Health Infoway (Infoway) and the Canadian Pharmacists Association (CPhA) invited community pharmacists to participate in a Web-based survey to understand their use and perceived benefits of digital health in practice. The survey was open from April 15 to May 12, 2014. Of the 447 survey responses, almost all used some form of digital health in practice. Those with access to DIS and provincial laboratory information systems (LIS) reported increased productivity and better quality of care. Those without access to these systems would overwhelmingly like access. There have been significant advances in digital health and community pharmacy practice over the past several years. In addition to digital health benefits in the areas of productivity and quality of care, pharmacists are also experiencing substantial benefits in areas related to recently expanded scope of practice activities such as ordering lab tests. Community pharmacists frequently use digital health in practice and recognize the benefits of these technologies. Digital health is, and will continue to be, a key enabler for practice transformation and improved quality of care. Can Pharm J (Ott) 2016;149:xx-xx.

  20. "There's Not Enough Knowledge Out There": Examining Older Adults' Perceptions of Digital Technology Use and Digital Inclusion Classes.

    Science.gov (United States)

    Betts, Lucy R; Hill, Rowena; Gardner, Sarah E

    2017-10-01

    Older adults' definitions of digital technology, and experiences of digital inclusion sessions, were examined using qualitative approaches. Seventeen older adults (aged between 54 and 85 years) participated in two focus groups that each lasted approximately 90 min to explore how older adults understood technology within their lived experience. Interpretative phenomenological analysis yielded two main themes: thirst for knowledge and a wish list for digital technology sessions. A separate content analysis was performed to identify what technology older adults identified as digital technology. This analysis revealed that the older adults most frequently defined digital technology as computers and telephones. The findings support the conclusions that this group of older adults, some of whom were "successful users," have a wide knowledge of digital technology, are interested in gaining more skills, and desire knowledge acquisition through personalized one-to-one learning sessions.

  1. Optical Communication over Plastic Optical Fibers Integrated Optical Receiver Technology

    CERN Document Server

    Atef, Mohamed

    2013-01-01

    This book presents high-performance data transmission over plastic optical fibers (POF) using integrated optical receivers having good properties with multilevel modulation, i.e. a higher sensitivity and higher data rate transmission over a longer plastic optical fiber length. Integrated optical receivers and transmitters with high linearity are introduced for multilevel communication. For binary high-data rate transmission over plastic optical fibers, an innovative receiver containing an equalizer is described leading also to a high performance of a plastic optical fiber link. The cheap standard PMMA SI-POF (step-index plastic optical fiber) has the lowest bandwidth and the highest attenuation among multimode fibers. This small bandwidth limits the maximum data rate which can be transmitted through plastic optical fibers. To overcome the problem of the plastic optical fibers high transmission loss, very sensitive receivers must be used to increase the transmitted length over POF. The plastic optical fiber li...

  2. Digital Citizenship: Addressing Appropriate Technology Behavior

    Science.gov (United States)

    Ribble, Mike S.; Bailey, Gerald D.; Ross, Tweed W.

    2004-01-01

    Recently, the popular press has pointed to increasing evidence of misuse and abuse of emerging technologies in U.S. schools. Some examples include using Web sites to intimidate or threaten students, downloading music illegally from the Internet, plagiarizing information using the Internet, using cellular phones during class time, and playing games…

  3. Digital Technologies and a Changing Profession

    DEFF Research Database (Denmark)

    Plesner, Ursula; Raviola, Elena

    2016-01-01

    Purpose: The purpose of this article is to investigate what role particular new management devices play in the development of the news profession in an organizational setting shifting to new technologies. Design/methodology/approach: This is studied through of observations of work practices...... they produce new practices and power relationships. It is shown that the devices produce increased collaboration among journalists and interaction between managers and output journalists, that mundane work and power is delegated to technological devices and that news products are increasingly standardized....... Furthermore, the article’s focus on devices opens up for conceptualizing power in the news room as distributed across a network of people and things, rather executed by managers alone....

  4. Digital Technologies and a Changing Profession

    DEFF Research Database (Denmark)

    Plesner, Ursula; Raviola, Elena

    2016-01-01

    in the newsroom and through documentary research and qualitative interviews with managers, editors, and other professionals. Findings: It is shown that management devices such as the news table and the news concept are central to the reorganization of news work, as they realize managers’ strategies, just like......Purpose: The purpose of this article is to investigate what role particular new management devices play in the development of the news profession in an organizational setting shifting to new technologies. Design/methodology/approach: This is studied through of observations of work practices...... they produce new practices and power relationships. It is shown that the devices produce increased collaboration among journalists and interaction between managers and output journalists, that mundane work and power is delegated to technological devices and that news products are increasingly standardized...

  5. Block chain Technology:Concept of Digital Economics

    OpenAIRE

    Ahmed, Ovais

    2017-01-01

    The purpose of the study is to explain about blockchain technology and how to use of blockchain technology for modern economics practices. We focused on this paper to put the light on blockchain usage in some other areas of economy such as, governance and political decision making, public finance, financial institution & stock market trading, global trading and other economic activities. The literature showed that blockchain is rapidly growing at globally and increasing digital money for tran...

  6. Animation, embodiment, and digital media human experience of technological liveliness

    CERN Document Server

    Chow, K

    2013-01-01

    Animation, Embodiment and Digital Media articulates the human experience of technology-mediated animated phenomena in terms of sensory perception, bodily action and imaginative interpretation, suggesting a new theoretical framework with analyses of exemplary user interfaces, video games and interactive artworks.

  7. Digital radiographic technology; non-destructive testing of tubine blades

    NARCIS (Netherlands)

    Penumadu, P.S.

    2014-01-01

    Inspection of turbine blades has always been a big challenge. Any irregularities in the blade have a huge impact on the gas turbine, so these blades have to be manufactured and inspected in the most sophisticated way possible. The evolution of digital radiographic technology took a leap forward to

  8. Composing with New Technology: Teacher Reflections on Learning Digital Video

    Science.gov (United States)

    Bruce, David L.; Chiu, Ming Ming

    2015-01-01

    This study explores teachers' reflections on their learning to compose with new technologies in the context of teacher education and/or teacher professional development. English language arts (ELA) teachers (n = 240) in 15 courses learned to use digital video (DV), completed at least one DV group project, and responded to open-ended survey…

  9. Bridging Divides through Technology Use: Transnationalism and Digital Literacy Socialization

    Science.gov (United States)

    Nogueron, Silvia Cecilia

    2011-01-01

    In this study, I investigate the digital literacy practices of adult immigrants, and their relationship with transnational processes and practices. Specifically, I focus on their conditions of access to information and communication technologies (ICTs) in their life trajectories, their conditions of learning in a community center, and their…

  10. Pre-Service Teacher Self-Efficacy in Digital Technology

    Science.gov (United States)

    Lemon, Narelle; Garvis, Susanne

    2016-01-01

    Self-efficacy is an important motivational construct for primary school teachers (teachers of children aged 5-12 years) within Australia. Teacher self-efficacy beliefs will determine the level of teacher confidence and competence to engage with a task. In this study, we explore engagement with digital technology and the associated learning and…

  11. "Digital Natives": An Asian Perspective for Using Learning Technologies

    Science.gov (United States)

    Kennedy, David M.; Fox, Bob

    2013-01-01

    Students entering universities in the 21st century have been described variously as digital natives, the millennial generation or the net generation. Considerable study has occurred around the world to determine the knowledge, skills, understanding and the purposes to which this group of individuals makes technology work for them. A number of…

  12. Gadgets in the Gymnasium: Physical Educators' Use of Digital Technologies

    Science.gov (United States)

    Robinson, Daniel B.; Randall, Lynn

    2017-01-01

    This article highlights results from a recent study that investigated Atlantic Canadian physical educators' adoption and implementation of various digital technologies. Employing a mixed-methods research design (survey participants, n = 206; focus group participants, n = 12), the research intended to provide a clear overview of physical educators'…

  13. Web Surveys to Digital Movies: Technological Tools of the Trade.

    Science.gov (United States)

    Fetterman, David M.

    2002-01-01

    Highlights some of the technological tools used by educational researchers today, focusing on data collection related tools such as Web surveys, digital photography, voice recognition and transcription, file sharing and virtual office, videoconferencing on the Internet, instantaneous chat and chat rooms, reporting and dissemination, and digital…

  14. The Pastoral Power of Technology. Rethinking Alienation in Digital Culture

    Directory of Open Access Journals (Sweden)

    Katarina Giritli Nygren

    2012-05-01

    Full Text Available The purpose of this paper is to bring Foucault’s elaboration on ‘the pastoral modalities of power’ into play in order to rethink alienation in digital culture. Pastoral power is not displacing other conceptions of power, but provides another level of analysis involved in the forging of reasonable responsible subjects willing and able to sustain other conceptions of power. We will draw particularly on the early writings of Marx and the more recent poststructuralist developments concerning hegemony and superstructure in relation to technology. Technology as such is analysed in terms of repercussions of ‘design of the machine’ in industrial technological contexts and ‘design of digital culture’ in digital technological contexts. Pastoral power not only directs our focus to the making of technologies, but also to the making of individuals capable of taking on the responsibilities of technologies. This means that it is necessary to take on the notion of effective power of ideologies and their material reality.

  15. Re-configurable digital receiver for optically envelope detected half cycle BPSK and MSK radio-on-fiber signals

    DEFF Research Database (Denmark)

    Guerrero Gonzalez, Neil; Prince, Kamau; Zibar, Darko

    2011-01-01

    We present the first known integration of a digital receiver into optically envelope detection radio-on-fiber systems. We also present a re-configurable scheme for two different types of optically envelope detected wireless signals while keeping the complexity of used optical components low. Our...... novel digital receiver consists of a digital signal processing unit integrating functions such as filtering, peak-powers detection, symbol synchronization and signal demodulation for optically envelope detected half-cycle binary phase-shift-keying and minimum-shift-keying signals. Furthermore, radio......-frequency signal down-conversion is not required in our proposed approach; simplifying evens more the optical receiver front-end. We experimentally demonstrate error-free optical transmission (bit-error rate corresponding to 10−3 related to FEC-compatible levels) for both 416.6 Mbit/s half-cycle binary phase...

  16. Digital Technologies and performative pedagogies: Repositioning the visual

    Directory of Open Access Journals (Sweden)

    Kathryn Grushka

    2010-05-01

    Full Text Available Images are becoming a primary means of information presentation in the digitized global media and digital technologies have emancipated and democratized the image. This allows for the reproduction and manipulation of images on a scale never seen before and opens new possibilities for teachers schooled in critical visuality. This paper reports on an innovative pre-service teacher training course in which a cross-curricula cohort of secondary teachers employed visual performative competencies to produce a series of learning objects on a digital platform. The resulting intertextual narratives demonstrate that the manipulation of image and text offered by digital technologies create a powerful vehicle for investigating knowledge and understandings, evolving new meaning and awakening latent creativity in the use of images for meaning making. This research informs the New Literacies and multimodal fields of enquiry and argues that visuality is integral to any pedagogy that purports to be relevant to the contemporary learner. It argues that the visual has been significantly under-valued as a conduit for knowledge acquisition and meaning making in the digital environment and supports the claim that critical literacy, interactivity, experimentation and production are vital to attaining the tenets of transformative education (Buckingham, 2007; Walsh, 2007; Cope & Kalantzis, 2008.

  17. Reducing the Digital Divide among Children Who Received Desktop or Hybrid Computers for the Home

    Science.gov (United States)

    Zilka, Gila Cohen

    2016-01-01

    Researchers and policy makers have been exploring ways to reduce the digital divide. Parameters commonly used to examine the digital divide worldwide, as well as in this study, are: (a) the digital divide in the accessibility and mobility of the ICT infrastructure and of the content infrastructure (e.g., sites used in school); and (b) the digital…

  18. Tim Berners-Lee receives the Millennium Technology Prize

    CERN Multimedia

    2004-01-01

    On 15 April, for his invention of the Web, Tim Berners-Lee was awarded the first ever Millennium Technology Prize by the Finnish Technology Award Foundation, which recognises technological innovations of lasting benefit to society. "Tim Berners-Lee's invention perfectly encapsulates the spirit of the Prize. The Web is encouraging new types of social networks, contributing to transparency and democracy, and opening up new avenues for information management and business development," underlined Pekka Tarjanne, chairman of the jury and former Secretary-General of the International Telecommunication Union (ITU). Tim Berners-Lee is congratulated by Jukka Valtasaari, Finland's Ambassador to the United States. Tim Berners-Lee created the first server, browser and editor, the HTML code, the URL address and the HTTP transmission protocol at CERN in 1990. CERN released the Web into the public domain in 1993. Tim Berners-Lee is currently head of the World Wide Web Consortium, managed by ERCIM (Europe...

  19. Complementary HFET technology for wireless digital and microwave applications

    Energy Technology Data Exchange (ETDEWEB)

    Baca, A.G.; Zolper, J.C.; Dubbert, D.F. [and others

    1996-09-01

    Development of a complementary heterostructure field effect transistor (CHFET) technology for low-power, mixed-mode digital-microwave applications is presented. Digital CHFET technology with independently optimizable transistors has been shown to operate with 319 ps loaded gate delays at 8.9 fJ. Power consumption is dominated by leakage currents of the p-channel FET, while performance is determined by the characteristics of 0.7 {mu}m gate length devices. As a microwave technology, the nJFET forms the basis of low-power cirucitry without any modification to the digital process. Narrow band amplification with a 0.7x100 {mu}m nJFET has been demonstrated at 2.1-2.4 GHz with gains of 8-10 dB at 1 mW power. These amplifiers showed a minimum noise figure of 2.5 dB. Next generation CHFET transistors with sub 0.5 {mu}m gate lengths have also been developed. Cutoff frequencies of 49 and 11.5 GHz were achieved for n- and p-channel FETs with 0.3 and 0.4 {mu}m gates, respectively. These FETs will enable enhancements in both digital and microwave circuits.

  20. Digital technology strengthens EDF's nuclear safety

    International Nuclear Information System (INIS)

    Dupin, Ludovic

    2016-01-01

    This article proposes an overview of the development of the use of various and new digital technologies of information and communication by EDF to train its nuclear operators, field technicians who are maintaining nuclear power plants, personnel in charge of risk management, and so on. Trainees are using tablets with augmented reality software, serious games, virtual reality helmets, and also digital simulators to learn how to control a reactor. More practical training also exists: people are taught how to practically and correctly assemble tubes for example

  1. Digital technologies to generate health awareness

    Directory of Open Access Journals (Sweden)

    Herman Adriaan van Wietmarschen

    2015-10-01

    A third use case for improving health awareness is the launch of a HealthCafé. The aim is to inspire people to measure their own health and measure the effects of interventions on their health, using all sorts of do-it-your-self technologies. The current version of the HealthCafé offers first of all a physical location where people can interact. It also offers devices such as activity trackers, glucose and cholesterol measurement devices, questionnaires, and a personal internet portal to store and analyse the data. The goal is to empower people and give people more control over their own health. Conclusions: Complexity science offers new opportunities to create health awareness. We have shown how a systems dynamics software tool can be used in group model building sessions to generate a shared understanding of a health problem among stakeholders. The resulted in a successful integrative overweight treatment program at a rehabilitation centre in the Netherlands. The HealthCafé was launched as a living lab which can be used by people to explore their own health and conduct studies on themselves. These activities are aiming for a transition in health care towards more awareness as the personal level, empowerment and thereby increasing the chances for successful life-style changes towards more health and happiness.

  2. Digital Microdroplet Ejection Technology-Based Heterogeneous Objects Prototyping

    Science.gov (United States)

    Yang, Jiquan; Feng, Chunmei; Yang, Jianfei; Zhu, Liya; Guo, Aiqing

    2016-01-01

    An integrate fabrication framework is presented to build heterogeneous objects (HEO) using digital microdroplets injecting technology and rapid prototyping. The heterogeneous materials part design and manufacturing method in structure and material was used to change the traditional process. The net node method was used for digital modeling that can configure multimaterials in time. The relationship of material, color, and jetting nozzle was built. The main important contributions are to combine the structure, material, and visualization in one process and give the digital model for manufacture. From the given model, it is concluded that the method is effective for HEO. Using microdroplet rapid prototyping and the model given in the paper HEO could be gotten basically. The model could be used in 3D biomanufacturing. PMID:26981110

  3. Digital Microdroplet Ejection Technology-Based Heterogeneous Objects Prototyping.

    Science.gov (United States)

    Li, Na; Yang, Jiquan; Feng, Chunmei; Yang, Jianfei; Zhu, Liya; Guo, Aiqing

    2016-01-01

    An integrate fabrication framework is presented to build heterogeneous objects (HEO) using digital microdroplets injecting technology and rapid prototyping. The heterogeneous materials part design and manufacturing method in structure and material was used to change the traditional process. The net node method was used for digital modeling that can configure multimaterials in time. The relationship of material, color, and jetting nozzle was built. The main important contributions are to combine the structure, material, and visualization in one process and give the digital model for manufacture. From the given model, it is concluded that the method is effective for HEO. Using microdroplet rapid prototyping and the model given in the paper HEO could be gotten basically. The model could be used in 3D biomanufacturing.

  4. Digital Microdroplet Ejection Technology-Based Heterogeneous Objects Prototyping

    Directory of Open Access Journals (Sweden)

    Na Li

    2016-01-01

    Full Text Available An integrate fabrication framework is presented to build heterogeneous objects (HEO using digital microdroplets injecting technology and rapid prototyping. The heterogeneous materials part design and manufacturing method in structure and material was used to change the traditional process. The net node method was used for digital modeling that can configure multimaterials in time. The relationship of material, color, and jetting nozzle was built. The main important contributions are to combine the structure, material, and visualization in one process and give the digital model for manufacture. From the given model, it is concluded that the method is effective for HEO. Using microdroplet rapid prototyping and the model given in the paper HEO could be gotten basically. The model could be used in 3D biomanufacturing.

  5. Bits of Homeland: Generational and Gender Transformations of Moroccan-Dutch Youth using digital technologies

    NARCIS (Netherlands)

    Leurs, K.H.A.; Ponzanesi, S.

    2013-01-01

    Generational and gendered specificities of digital technology use within migrant families remain understudied and undertheorized (Green & Kabir, 2012). Digital technologies are used among descendants of migrants to sustain and update networks while simultaneously they allow the younger generation to

  6. Implementing digital technology to enhance student learning of pathology.

    Science.gov (United States)

    Farah, C S; Maybury, T

    2009-08-01

    The introduction of digital technologies into the dental curriculum is an ongoing feature of broader changes going on in tertiary education. This report examines the introduction of digital virtual microscopy technology into the curriculum of the School of Dentistry at the University of Queensland (UQ) in Brisbane, Australia. Sixty students studying a course in pathology in 2005 were introduced to virtual microscopy technology alongside the more traditional light microscope and then asked to evaluate their own learning outcomes from this technology via a structured 5-point LIKART survey. A wide variety of questions dealing the pedagogic implications of the introduction of virtual microscopy into pathology were asked of students with the overall result being that it positively enhanced their learning of pathology via digital microscopic means. The success of virtual microscopy in dentistry at UQ is then discussed in the larger context of changes going on in tertiary education. In particular, the change from the print-literate tradition to the electronic one, that is from 'literacy to electracy'. Virtual microscopy is designated as a component of this transformation to electracy. Whilst traditional microscopic skills may still be valued in dental curricula, the move to virtual microscopy and computer-assisted, student-centred learning of pathology appears to enhance the learning experience in relation to its effectiveness in helping students engage and interact with the course material.

  7. How do digital platforms for ideas, technologies, and knowledge transfer act as enablers for digital transformation?

    DEFF Research Database (Denmark)

    Hossain, Mokter; Lassen, Astrid Heidemann

    2017-01-01

    Digital platforms, along with their supporting tools and features, have emerged as important enablers for firms to leverage distributed knowledge (Sedera et al., 2016), because they offer new ways for organizations to collaborate with the external environment for ideas, technologies, and knowledge...... for research and development (R&D), idea generation, prediction, freelance work, peer production, co-creation, product design, and public engagement, to name but a few. For example, Dell’s IdeaStorm (Hossain & Islam, 2015a) and Starbucks’ MyStarbucksIdea (Hossain & Islam, 2015b) are two digital crowdsourcing...... platforms that are used to engage crowds to solicit ideas from them (Bayus, 2013; Chua & Banerjee, 2013). Moreover, intermediary platforms, such as InnoCentive and IdeaConnection, are organizing online competitions to solve the problems of various organizations (Hossain, 2012). Although digital platforms...

  8. Using and choosing digital health technologies: a communications science perspective.

    Science.gov (United States)

    Ovretveit, John; Wu, Albert; Street, Richard; Thimbleby, Harold; Thilo, Friederike; Hannawa, Annegret

    2017-03-20

    Purpose The purpose of this paper is to explore a non-technical overview for leaders and researchers about how to use a communications perspective to better assess, design and use digital health technologies (DHTs) to improve healthcare performance and to encourage more research into implementation and use of these technologies. Design/methodology/approach Narrative overview, showing through examples the issues and benefits of introducing DHTs for healthcare performance and the insights that communications science brings to their design and use. Findings Communications research has revealed the many ways in which people communicate in non-verbal ways, and how this can be lost or degraded in digitally mediated forms. These losses are often not recognized, can increase risks to patients and reduce staff satisfaction. Yet digital technologies also contribute to improving healthcare performance and staff morale if skillfully designed and implemented. Research limitations/implications Researchers are provided with an introduction to the limitations of the research and to how communications science can contribute to a multidisciplinary research approach to evaluating and assisting the implementation of these technologies to improve healthcare performance. Practical implications Using this overview, managers are more able to ask questions about how the new DHTs will affect healthcare and take a stronger role in implementing these technologies to improve performance. Originality/value New insights into the use and understanding of DHTs from applying the new multidiscipline of communications science. A situated communications perspective helps to assess how a new technology can complement rather than degrade professional relationships and how safer implementation and use of these technologies can be devised.

  9. Volumetric solar thermal receiver principles and technological approach

    International Nuclear Information System (INIS)

    Sagie, D.; Gruntman, S.; Taragan, E.; Danino, M.; Weiss, S.; Mimon, Y.

    1996-01-01

    Solar energy has received much interest in recent years, being a clean free of pollution or other environmental dotage), and inexhaustible energy source. It is also considered safer than some other non conventional energy sources (like nuclear energy). The interest in solar energy is motivated mainly by the growing awareness of the environmental problems associated with the use of . conventional keels. However, solar energy may become a serious alternative only if it can be used efficiently in major energy consuming industries (like the chemical industry), or be used for electricity generation. Those facilities are nowadays solely depend on fossil fuels as the prime source of energy . The solar energy, reaches file Earth as radiation, can be utilized either by direct quantum conversion using photo-voltaic solar cells, or by converting the radiation into thermal energy, to be used directly for heating, or to feed a thermal to electric converting cycle. Alter three decades of huge spending on the development of photo-voltaic systems those devices are commercially competitive only on very small energy scale, while solar thermal commercial applications are evident. The prominent examples are the domestic heating water receivers (direct thermal), and LUZ International electricity generation plants which are currently operated on a commercial basis, supplying 80 MWe per plant. Direct thermal exploitation of solar energy is naturally more efficient than converting to electricity but is limited to specific applications and locations especially since thermal storage at high temperature is not commercially viable. Efficient electricity production at competitive price is clearly the biggest opportunity for solar energy. (authors)

  10. Reconfigurable Digital Coherent Receiver for Metro-Access Networks Supporting Mixed Modulation Formats and Bit-rates

    DEFF Research Database (Denmark)

    Caballero Jambrina, Antonio; Guerrero Gonzalez, Neil; Arlunno, Valeria

    2013-01-01

    A single, reconfigurable, digital coherent receiver is proposed and experimentally demonstrated for converged wireless and optical fiber transport. The capacity of reconstructing the full transmitted optical field allows for the demodulation of mixed modulation formats and bit-rates. We performed...

  11. University students’ self-regulated learning using digital technologies

    Directory of Open Access Journals (Sweden)

    Carmen Yot-Domínguez

    2017-11-01

    Full Text Available Abstract Analysing the process by which students—whether at university or not—manage and facilitate their own learning has been a recurrent educational research problem. Recently, the question arises about how the development of strategies taking place during the aforementioned process could be made easier by using technologies. In an effort to know whether university students really use digital technologies to plan, organize and facilitate their own learning, we have proposed three research questions. Which technologies do university students use to self-regulate their learning? What self-regulated learning strategies do they develop using technologies? What profiles could be identified among students based on their use of self-regulation strategies with technology? To answer these questions, the “Survey of Self-regulated Learning with Technology at the University” was designed. Information from a sample group with 711 students from various universities located in the region of Andalusia (Spain was collected with this survey. The results indicate that university students, even when they are frequent users of digital technology, they tend not to use these technologies to regulate their own learning process. Of all technologies analysed, Internet information search and instant communication tools are used continually. In turn, the most generalised self-regulation learning strategies are those relative to social support. Nevertheless, students differ from each other regarding their use and frequency. There are groups of students who make use of self-regulation strategies when learning with technologies. In this regard, two distinctive groups of students have been identified, who show differentiated self-regulated levels.

  12. Digital Technology in the protection of cultural heritage Bao Fan Temple mural digital mapping survey

    Directory of Open Access Journals (Sweden)

    Y. Zheng

    2015-08-01

    Full Text Available Peng Xi county, Sichuan province, the Bao Fan temple mural digitization survey mapping project: we use three-dimensional laserscanning, multi-baseline definition digital photography, multi-spectral digital image acquisition and other technologies for digital survey mapping. The purpose of this project is to use modern mathematical reconnaissance mapping means to obtain accurate mural shape, color, quality and other data. Combined with field investigation and laboratory analysis results, and based on a comprehensive survey and study, a comprehensive analysis of the historical Bao Fan Temple mural artistic and scientific value was conducted. A study of the mural’s many qualities (structural, material, technique, preservation environment, degradation, etc. reveal all aspects of the information carried by the Bao Fan Temple mural. From multiple angles (archeology, architecture, surveying, conservation science and other disciplines an assessment for the Bao Fan Temple mural provides basic data and recommendations for conservation of the mural. In order to achieve the conservation of cultural relics in the Bao Fan Temple mural digitization survey mapping process, we try to apply the advantages of three-dimensional laser scanning equipment. For wall murals this means obtaining three-dimensional scale data from the scan of the building and through the analysis of these data to help determine the overall condition of the settlement as well as the deformation of the wall structure. Survey analysis provides an effective set of conclusions and suggestions for appropriate mural conservation. But before data collection, analysis and research need to first to select the appropriate scanning equipment, set the appropriate scanning accuracy and layout position of stations necessary to determine the scope of required data. We use the fine features of the three-dimensional laser scanning measuring arm to scan the mural surface deformation degradation to reflect

  13. Digital Technology in the protection of cultural heritage Bao Fan Temple mural digital mapping survey

    Science.gov (United States)

    Zheng, Y.

    2015-08-01

    Peng Xi county, Sichuan province, the Bao Fan temple mural digitization survey mapping project: we use three-dimensional laserscanning, multi-baseline definition digital photography, multi-spectral digital image acquisition and other technologies for digital survey mapping. The purpose of this project is to use modern mathematical reconnaissance mapping means to obtain accurate mural shape, color, quality and other data. Combined with field investigation and laboratory analysis results, and based on a comprehensive survey and study, a comprehensive analysis of the historical Bao Fan Temple mural artistic and scientific value was conducted. A study of the mural's many qualities (structural, material, technique, preservation environment, degradation, etc.) reveal all aspects of the information carried by the Bao Fan Temple mural. From multiple angles (archeology, architecture, surveying, conservation science and other disciplines) an assessment for the Bao Fan Temple mural provides basic data and recommendations for conservation of the mural. In order to achieve the conservation of cultural relics in the Bao Fan Temple mural digitization survey mapping process, we try to apply the advantages of three-dimensional laser scanning equipment. For wall murals this means obtaining three-dimensional scale data from the scan of the building and through the analysis of these data to help determine the overall condition of the settlement as well as the deformation of the wall structure. Survey analysis provides an effective set of conclusions and suggestions for appropriate mural conservation. But before data collection, analysis and research need to first to select the appropriate scanning equipment, set the appropriate scanning accuracy and layout position of stations necessary to determine the scope of required data. We use the fine features of the three-dimensional laser scanning measuring arm to scan the mural surface deformation degradation to reflect the actual state of

  14. Digital Technology in Education: Towards New Inclusive Practices

    DEFF Research Database (Denmark)

    Jönsson, Lise Høgh

    for new inclusive practices. The main theoretical argument derives from the work of French sociologist Pierre Bourdieu. Bourdieu argues that we act upon the world with our habitus, i.e. dispositions created due to previous experiences working as a matrix of perceptions, assumptions and actions....... Using Bourdieu’s theoretical framework, it becomes possible to explain how children and people with learning disabilities are able to strengthen their position by the use of digital technology. This theoretical framework is enhanced by theories of empowerment as any improvement in the participation...... and decision-making power, hold the potential to change opportunity structures in an inclusive direction . Research was carried out in kindergartens and special education facilities in Denmark. Building upon design-based research, the research aimed at testing and developing approaches to digital technology...

  15. The Governance of Digital Technology, Big Data, and the Internet

    DEFF Research Database (Denmark)

    Flyverbom, Mikkel; Deibert, Ronald; Matten, Dirk

    2017-01-01

    The importance of digital technologies for social and economic developments and a growing focus on data collection and privacy concerns have made the Internet a salient and visible issue in global politics. Recent developments have increased the awareness that the current approach of governments...... and business to the governance of the Internet and the adjacent technological spaces raises a host of ethical issues. The significance and challenges of the digital age have been further accentuated by a string of highly exposed cases of surveillance and a growing concern about issues of privacy and the power...... of this new industry. This special issue explores what some have referred to as the “Internet-industrial complex”—the intersections between business, states, and other actors in the shaping, development, and governance of the Internet....

  16. Primary school teachers' use of digital technology in mathematics: the complexities

    Science.gov (United States)

    Loong, Esther Yook-Kin; Herbert, Sandra

    2018-02-01

    This paper seeks to theorise primary teachers' degree of integration of digital technology in the mathematics classroom. In an age where digital technology use is ubiquitous, the issues surrounding teachers' choice, and ultimately their uptake of digital technologies in the classroom, is an area that need to be further unpacked. Cross-case analysis of the two teachers' uptake of digital technologies in their classroom, their pedagogical approaches and the reason for their choices provide insight into teachers' technological, pedagogical and content knowledge (TPACK). Differences in the way the teachers use digital technology in their classroom seem to be connected to their TPACK developmental stage.

  17. [Application of three-dimensional digital technology in the diagnosis and treatment planning in orthodontics].

    Science.gov (United States)

    Bai, Y X

    2016-06-01

    Three-dimensional(3D)digital technology has been widely used in the field of orthodontics in clinical examination, diagnosis, treatment and curative effect evaluation. 3D digital technology greatly improves the accuracy of diagnosis and treatment, and provides effective means for personalized orthodontic treatment. This review focuses on the application of 3D digital technology in the field of orthodontics.

  18. Lesbians and tech: Analyzing digital media technologies and lesbian experience.

    Science.gov (United States)

    Harris, Angelique; Daniels, Jessie

    2017-11-28

    The rise of the popular Internet has coincided with the increasing acceptance, even assimilation, of lesbians into mainstream society. The visible presence of lesbians in the tech industry and in digitally mediated spaces raises a set of questions about the relationship between queer identities and Internet technologies. This introduction to a special issue of Journal of Lesbian Studies explores some of these questions and provides an overview of the articles that follow.

  19. GENDER SPECIFICS OF USING DIGITAL TECHNOLOGIES BY CHILDREN

    OpenAIRE

    Gulshat Firazovna Shakirova*

    2018-01-01

    In this paper, the gender characteristics of children of preschool age that are actively using digital technologies in everyday life are studied, the age characteristics of children are described, and the terminology of the research is defined. The study used psychological methods: questionnaire, observation of children of preschool age on the basis of the questionnaire "Masculinity, femininity and gender personality type" (a modification of O. G. Lopukhova), the conversation "Boys and ...

  20. What Does Yaghan Have to Do with Digital Technology?

    Directory of Open Access Journals (Sweden)

    Lenore A. Grenoble

    2002-01-01

    Full Text Available Digital media offers some powerful new ways to organize and transmit linguistic data. This editorial suggests that linguists need to be more aggressive in exploting the technology so that information about language is spread more rapidly and in a more efficient format. To make this point, the case of fieldwork on Yaghan is examined. Though early fieldwork was carried out on Yaghan very little about the language is known because of the way the data was collected and reported.

  1. Fast modified signal-digit (MSD) multiplication technology and system

    Science.gov (United States)

    Sun, DeGui; He, Li-Ming; Wang, Na-Xin; Weng, Zhao-Heng

    1994-06-01

    In this paper, the carry-free property of modified-signed-digit (MSD) addition is analyzed with a space position logic encoding scheme. On this basis, MSD multiplication is discussed and a fast MSD multiplication system composed of optoelectronic logic technology and a multilayer optical interconnection architecture is propsed and studied. Finally, the effectivity of the fast MSD multiplication system is demostrated by using a 2X2 bit multiplication example and experimental results are given.

  2. Disruptive Technology Enhanced Learning: The Use and Misuse of Digital Technologies in Higher Education

    Science.gov (United States)

    Flavin, Michael

    2017-01-01

    This book is about how technologies are used in practice to support learning and teaching in higher education. Despite digitization and e-learning becoming ever-increasingly popular in university teaching settings, this book convincingly argues instead in favour of simple and convenient technologies, thus disrupting traditional patterns of…

  3. Use of digital technologies for nasal prosthesis manufacturing.

    Science.gov (United States)

    Palousek, David; Rosicky, Jiri; Koutny, Daniel

    2014-04-01

    Digital technology is becoming more accessible for common use in medical applications; however, their expansion in prosthetic and orthotic laboratories is not large because of the persistent image of difficult applicability to real patients. This article aims to offer real example in the area of human facial prostheses. This article describes the utilization of optical digitization, computational modelling, rapid prototyping, mould fabrication and manufacturing of a nasal silicone prosthesis. This technical note defines the key points of the methodology and aspires to contribute to the introduction of a certified manufacturing procedure. The results show that the used technologies reduce the manufacturing time, reflect patient's requirements and allow the manufacture of high-quality prostheses for missing facial asymmetric parts. The methodology provides a good position for further development issues and is usable for clinical practice. Clinical relevance Utilization of digital technologies in facial prosthesis manufacturing process can be a good contribution for higher patient comfort and higher production efficiency but with higher initial investment and demands for experience with software tools.

  4. An ethical assessment model for digital disease detection technologies.

    Science.gov (United States)

    Denecke, Kerstin

    2017-09-20

    Digital epidemiology, also referred to as digital disease detection (DDD), successfully provided methods and strategies for using information technology to support infectious disease monitoring and surveillance or understand attitudes and concerns about infectious diseases. However, Internet-based research and social media usage in epidemiology and healthcare pose new technical, functional and formal challenges. The focus of this paper is on the ethical issues to be considered when integrating digital epidemiology with existing practices. Taking existing ethical guidelines and the results from the EU project M-Eco and SORMAS as starting point, we develop an ethical assessment model aiming at providing support in identifying relevant ethical concerns in future DDD projects. The assessment model has four dimensions: user, application area, data source and methodology. The model supports in becoming aware, identifying and describing the ethical dimensions of DDD technology or use case and in identifying the ethical issues on the technology use from different perspectives. It can be applied in an interdisciplinary meeting to collect different viewpoints on a DDD system even before the implementation starts and aims at triggering discussions and finding solutions for risks that might not be acceptable even in the development phase. From the answers, ethical issues concerning confidence, privacy, data and patient security or justice may be judged and weighted.

  5. Study on modeling technology in digital reactor system

    International Nuclear Information System (INIS)

    Liu Xiaoping; Luo Yuetong; Tong Lili

    2004-01-01

    Modeling is the kernel part of a digital reactor system. As an extensible platform for reactor conceptual design, it is very important to study modeling technology and develop some kind of tools to speed up preparation of all classical computing models. This paper introduces the background of the project and basic conception of digital reactor. MCAM is taken as an example for modeling and its related technologies used are given. It is an interface program for MCNP geometry model developed by FDS team (ASIPP and HUT), and designed to run on windows system. MCAM aims at utilizing CAD technology to facilitate creation of MCNP geometry model. There have been two ways for MCAM to utilize CAD technology: (1) Making use of user interface technology in aid of generation of MCNP geometry model; (2) Making use of existing 3D CAD model to accelerate creation of MCNP geometry model. This paper gives an overview of MCAM's major function. At last, several examples are given to demonstrate MCAM's various capabilities. (authors)

  6. Beyond Moore's Law: Harnessing spatial-digital disruptive technologies for Digital Earth

    Science.gov (United States)

    Foresman, Timothy W.

    2016-11-01

    Moore's law will reach its plateau by 2020. Big data, however, will continue to increase as the Internet of Things and social media converge into the new era of ‘huge data’. Disruptive technologies, including big data and cloud computing are forces impacting business and government communities. The truth of our collective future is suggested to align with the Digital Earth (DE) vision. Benefits of technological advances will be manifested from business performance improvements based on capitalizing the locational attributes of corporate and government assets - the foundation of big data. Better governance and better business represents a key foundation for sustainability and therefore should be explicit DE guiding principles.

  7. A Survey of Complex Object Technologies for Digital Libraries

    Science.gov (United States)

    Nelson, Michael L.; Argue, Brad; Efron, Miles; Denn, Sheila; Pattuelli, Maria Cristina

    2001-01-01

    Many early web-based digital libraries (DLs) had implicit assumptions reflected in their architecture that the unit of focus in the DL (frequently "reports" or "e-prints") would only be manifested in a single, or at most a few, common file formats such as PDF or PostScript. DLs have now matured to the point where their contents are commonly no longer simple files. Complex objects in DLs have emerged from in response to various requirements, including: simple aggregation of formats and supporting files, bundling additional information to aid digital preservation, creating opaque digital objects for e-commerce applications, and the incorporation of dynamic services with the traditional data files. We examine a representative (but not necessarily exhaustive) number of current and recent historical web-based complex object technologies and projects that are applicable to DLs: Aurora, Buckets, ComMentor, Cryptolopes, Digibox, Document Management Alliance, FEDORA, Kahn-Wilensky Framework Digital Objects, Metadata Encoding & Transmission Standard, Multivalent Documents, Open eBooks, VERS Encapsulated Objects, and the Warwick Framework.

  8. Digital Process Management Technology for Nuclear Power Plants

    International Nuclear Information System (INIS)

    You, Young M.; Suh, Kune Y.

    2009-01-01

    PHILOSOPHIA, Inc. and Seoul National University have utilized the cutting edge Digital Process Management (DPM) technology for the good of Nuclear Power Plant in recent days. This work represent the overall benefits and the use of this new flow of technology which come into the spotlight. Before realizing the three dimensional (3D) technologies and applying it to real mechanical manufactures and constructions, majority of planning and designing works need huge time and cost even if the process is before the real work. Especially, for a massive construction such as power plant and harbor, without computer-aided technology currently we cannot imagine the whole process can be established easily. Computer-aided Design (CAD) is now main and common technology for manufacturing or construction. This technology lead the other virtual reality 3D technologies into the job site. As a member of these new technologies, DPM is utilized in high-tech and huge scale manufacturing and construction for the benefits of time and cost

  9. Discussion on the management system technology implementation of multimedia classrooms in the digital campus

    Science.gov (United States)

    Wang, Bo

    2018-04-01

    Based on the digitized information and network, digital campus is an integration of teaching, management, science and research, life service and technology service, and it is one of the current mainstream construction form of campus function. This paper regarded the "mobile computing" core digital environment construction development as the background, explored the multiple management system technology content design and achievement of multimedia classrooms in digital campus and scientifically proved the technology superiority of management system.

  10. Film piracy in the era of digital technology

    Directory of Open Access Journals (Sweden)

    Petrović Vukašin

    2015-01-01

    Full Text Available Reproduction of films in the era of analog technology has been connected with a number of difficulties, involving, inter alia, technically complex process of reproduction, as well as high cash expenditures. In that sense, the very analog technology presented a barrier to reproduction of films by unauthorized persons. By switching to digital technology, the reproduction of mentioned copyright works became much easier, in terms of enabling individuals to, with easily available and relatively cheap technical means, in a fast and high quality way, make a large number of film copies. Since the digital era reflects progress of technology in the field of reproduction and distribution of films, as well as copyright works in general, the introduction of new exclusive rights in copyright law is very significant, as well as narrowing the existing limitations of copyright law rights and extension of duration of the protection. Effective enforcement of copyright protection in the new conditions opened a range of numerous issues, out of which the question of piracy in the field of film production is one of the most important, which presented the motivation for the author to cover this issue.

  11. A survey of passive technology for digital image forensics

    Institute of Scientific and Technical Information of China (English)

    LUO Weiqi; QU Zhenhua; PAN Feng; HUANG Jiwu

    2007-01-01

    Over the past years,digital images have been widely used in the Internet and other applications.Whilst image processing techniques are developing at a rapid speed,tampering with digital images without leaving any obvious traces becomes easier and easier.This may give rise to some problems such as image authentication.A new passive technology for image forensics has evolved quickly during the last few years.Unlike the signature-based or watermark-based methods,the new technology does not need any signature generated or watermark embedded in advance,it assumes that different imaging devices or processing would introduce different inherent patterns into the output images.These underlying patterns are consistent in the original untampered images and would be altered after some kind of manipulations.Thus,they can be used as evidence for image source identification and alteration detection.In this paper,we will discuss this new forensics technology and give an overview of the prior literatures.Some concluding remarks are made about the state of the art and the challenges in this novel technology.

  12. Advanced digital technology - improving nuclear power plant performance through maintainability

    International Nuclear Information System (INIS)

    Ford, J.L.; Senechal, R.R.; Altenhein, G.D.; Harvey, R.P.

    1998-01-01

    In today's energy sector there is ever increasing pressure on utilities to operate power plants at high capacity factors. To ensure nuclear power is competitive into the next century, it is imperative that strategic design improvements be made to enhance the performance of nuclear power plants. There are a number of factors that affect a nuclear power plant's performance; lifetime maintenance is one of the major contributors. The maturing of digital technology has afforded ABB the opportunity to make significant design improvements in the area of maintainability. In keeping with ABB's evolutionary advanced nuclear plant design approach, digital technology has systematically been incorporated into the control and protection systems of the most recent Korean nuclear units in operation and under construction. One example of this was the multi-functional design team approach that was utilized for the development of ABB's Digital Plant Protection System (DPPS). The design team consisted of engineers, maintenance technicians, procurement specialists and manufacturing personnel in order to provide a complete perspective on all facets of the design. The governing design goals of increased reliability and safety, simplicity of design, use of off-the-shelf products and reduced need for periodic surveillance testing were met with the selection of proven ABB-Advant Programmable Logic Controllers (PLCs) as the heart of the DPPS. The application of digital PLC technology allows operation for extended periods without requiring routine maintenance or re-calibration. A well documented commercial dedication program approved by the United States Nuclear Regulatory Commission (US NRC) as part of the System 80+ TM Advanced Light Water Reactor Design Certification Program, allowed the use of off-the shelf products in the design of the safety protection system. In addition, a number of mechanical and electrical improvements were made which support maintainability. The result is a DPPS

  13. Experimental Adaptive Digital Performance Monitoring for Optical DP-QPSK Coherent Receiver

    DEFF Research Database (Denmark)

    Borkowski, Robert; Zhang, Xu; Zibar, Darko

    2011-01-01

    We report on a successful experimental demonstration of a digital optical performance monitoring (OPM) yielding satisfactory estimation accuracy along with adaptive impairment equalization. No observable penalty is measured when equalizer is driven by monitoring module.......We report on a successful experimental demonstration of a digital optical performance monitoring (OPM) yielding satisfactory estimation accuracy along with adaptive impairment equalization. No observable penalty is measured when equalizer is driven by monitoring module....

  14. [Understanding chair-side digital technology for stomatology from an engineering viewpoint].

    Science.gov (United States)

    Zhao, Y J; Wang, Y

    2018-04-09

    In recent years with the rapid development of digital technology for stomatology, the application field, application model, technical features and technical connotation of the chair-side digital technology has got development and change. The open modular system has gradually replaced the traditional closed system, and the application field of digital technology is no longer limited to chair-side dental restoration, it also has been extend to various kinds of chair-side digital treatment-assisted technology. In this paper, from the engineering point of view, the up to date general connotation of chair-side digital technology was explained, the characteristics and the development of each unit in chair-side digital technology were analyzed, and the application pattern and the localization status were also discussed in this paper. The aim of this paper was to introduce the trend of chair-side digital technological to readers and to better guide clinical application.

  15. Digitized Educational Technology: A Learning Tool Using Remotely Sensed Data

    Science.gov (United States)

    Love, Gloria Carter

    1999-01-01

    Digitized Educational software for different levels of instruction were developed and placed on the web (geocities). Students attending the Pre-Engineering Summer 1998 Camp at Dillard University explored the use of the software which included presentations, applications, and special exercises. Student comments were received and considered for adjustments. The second outreach program included students from Colton Junior High School and Natural Science Majors at Dillard University. The Natural Majors completed a second survey concerning reasons why students selected majors in the Sciences and Mathematics. Two student research assistants (DU) and faculty members/parents of Colton Junior High assisted.

  16. Development of Gravity Acceleration Measurement Using Simple Harmonic Motion Pendulum Method Based on Digital Technology and Photogate Sensor

    Science.gov (United States)

    Yulkifli; Afandi, Zurian; Yohandri

    2018-04-01

    Development of gravitation acceleration measurement using simple harmonic motion pendulum method, digital technology and photogate sensor has been done. Digital technology is more practical and optimizes the time of experimentation. The pendulum method is a method of calculating the acceleration of gravity using a solid ball that connected to a rope attached to a stative pole. The pendulum is swung at a small angle resulted a simple harmonic motion. The measurement system consists of a power supply, Photogate sensors, Arduino pro mini and seven segments. The Arduino pro mini receives digital data from the photogate sensor and processes the digital data into the timing data of the pendulum oscillation. The calculation result of the pendulum oscillation time is displayed on seven segments. Based on measured data, the accuracy and precision of the experiment system are 98.76% and 99.81%, respectively. Based on experiment data, the system can be operated in physics experiment especially in determination of the gravity acceleration.

  17. Using digital technologies to engage with medical research: views of myotonic dystrophy patients in Japan.

    Science.gov (United States)

    Coathup, Victoria; Teare, Harriet J A; Minari, Jusaku; Yoshizawa, Go; Kaye, Jane; Takahashi, Masanori P; Kato, Kazuto

    2016-08-24

    As in other countries, the traditional doctor-patient relationship in the Japanese healthcare system has often been characterised as being of a paternalistic nature. However, in recent years there has been a gradual shift towards a more participatory-patient model in Japan. With advances in technology, the possibility to use digital technologies to improve patient interactions is growing and is in line with changing attitudes in the medical profession and society within Japan and elsewhere. The implementation of an online patient engagement platform is being considered by the Myotonic Dystrophy Registry of Japan. The aim of this exploratory study was to understand patients' views and attitudes to using digital tools in patient registries and engagement with medical research in Japan, prior to implementation of the digital platform. We conducted an exploratory, cross-sectional, self-completed questionnaire with a sample of myotonic dystrophy (MD) patients attending an Open Day at Osaka University, Japan. Patients were eligible for inclusion if they were 18 years or older, and were diagnosed with MD. A total of 68 patients and family members attended the Open Day and were invited to participate in the survey. Of those, 59 % submitted a completed questionnaire (n = 40). The survey showed that the majority of patients felt that they were not receiving the information they wanted from their clinicians, which included recent medical research findings and opportunities to participate in clinical trials, and 88 % of patients indicated they would be willing to engage with digital technologies to receive relevant medical information. Patients also expressed an interest in having control over when and how they received this information, as well as being informed of how their data is used and shared with other researchers. Overall, the findings from this study suggest that there is scope to develop a digital platform to engage with patients so that they can receive

  18. HD Photo: a new image coding technology for digital photography

    Science.gov (United States)

    Srinivasan, Sridhar; Tu, Chengjie; Regunathan, Shankar L.; Sullivan, Gary J.

    2007-09-01

    This paper introduces the HD Photo coding technology developed by Microsoft Corporation. The storage format for this technology is now under consideration in the ITU-T/ISO/IEC JPEG committee as a candidate for standardization under the name JPEG XR. The technology was developed to address end-to-end digital imaging application requirements, particularly including the needs of digital photography. HD Photo includes features such as good compression capability, high dynamic range support, high image quality capability, lossless coding support, full-format 4:4:4 color sampling, simple thumbnail extraction, embedded bitstream scalability of resolution and fidelity, and degradation-free compressed domain support of key manipulations such as cropping, flipping and rotation. HD Photo has been designed to optimize image quality and compression efficiency while also enabling low-complexity encoding and decoding implementations. To ensure low complexity for implementations, the design features have been incorporated in a way that not only minimizes the computational requirements of the individual components (including consideration of such aspects as memory footprint, cache effects, and parallelization opportunities) but results in a self-consistent design that maximizes the commonality of functional processing components.

  19. Restudy on digital mine: characteristics, framework and key technologies

    Energy Technology Data Exchange (ETDEWEB)

    Wu, L.; Yin, Z.; Zhong, Y. [China University of Mining and Technology, Beijing (China). Beijing Campus

    2003-02-01

    Based on analysing the problems associated with the promotion of mine digitization in China, the basic characteristics of a digital mine (DM) are described with respect to an intelligent transportation system: high speed intranet as the road-net; modular mining software as the vehicle; mine data and models as the fuel; 3D geoscience modelling (3DGM) and data mining as the filter; data collection and update as the safeguard, and mine GIS (MGIS) as the scheduler. Based on the four-layered structure of C/S and the work processes in a mine, the fundamental constituent diagram and a network framework of DM are designed. The nine key technologies for the implementation of DM strategy are discussed, which includes the data warehouse in mine; the data mining in mine; real 3DGM and visualization; 3D topological modelling and analysis in mine; modular application software and models; underground rapid positioning and automatic navigation; underground multimedia communication and wireless transmission; intelligent mining robot-groups and the integration of 3S (GIS, GPS, RS), office automation (OA) and command dispatch system (CDS). In addition, the recent progress of 'digital Kailuan' is introduced as an example of DM. 26 refs., 4 figs.

  20. Discussion on construction of scientific and technological digital library in nuclear industry

    International Nuclear Information System (INIS)

    Yin Huilan

    2010-01-01

    With the rapid development of digital and network technology, traditional libraries have been unable to meet the needs of the times. Digital libraries will gradually take the place of traditional libraries. Under the circumstances, how will the libraries of the enterprises in nuclear industry face this transformation? This paper gives the brief descriptions and comparative analyses in the four aspects: the definition of the digital library, the meaning of nuclear scientific and technological digital library, the characteristics of the digital library, and major problems in the construction of nuclear scientific and technological digital library that should be solved. Therefore, setting up the digital library is very important. At the same time, it's very necessary and urgent for the libraries of the enterprises in nuclear industry to establish nuclear scientific and technological digital library. (author)

  1. Advanced framework for digital forensic technologies and procedures.

    Science.gov (United States)

    Trček, Denis; Abie, Habtamu; Skomedal, Asmund; Starc, Iztok

    2010-11-01

    Recent trends in global networks are leading toward service-oriented architectures and sensor networks. On one hand of the spectrum, this means deployment of services from numerous providers to form new service composites, and on the other hand this means emergence of Internet of things. Both these kinds belong to a plethora of realms and can be deployed in many ways, which will pose serious problems in cases of abuse. Consequently, both trends increase the need for new approaches to digital forensics that would furnish admissible evidence for litigation. Because technology alone is clearly not sufficient, it has to be adequately supported by appropriate investigative procedures, which have yet become a subject of an international consensus. This paper therefore provides appropriate a holistic framework to foster an internationally agreed upon approach in digital forensics along with necessary improvements. It is based on a top-down approach, starting with legal, continuing with organizational, and ending with technical issues. More precisely, the paper presents a new architectural technological solution that addresses the core forensic principles at its roots. It deploys so-called leveled message authentication codes and digital signatures to provide data integrity in a way that significantly eases forensic investigations into attacked systems in their operational state. Further, using a top-down approach a conceptual framework for forensics readiness is given, which provides levels of abstraction and procedural guides embellished with a process model that allow investigators perform routine investigations, without becoming overwhelmed by low-level details. As low-level details should not be left out, the framework is further evaluated to include these details to allow organizations to configure their systems for proactive collection and preservation of potential digital evidence in a structured manner. The main reason behind this approach is to stimulate efforts

  2. Performance Evaluation of Digital Coherent Receivers for Phase-Modulated Radio-Over-Fiber Links

    DEFF Research Database (Denmark)

    Caballero Jambrina, Antonio; Zibar, Darko; Tafur Monroy, Idelfonso

    2011-01-01

    The performance of optical phase-modulated (PM) radio-over-fiber (RoF) links assisted with coherent detection and digital signal processing (PM-Coh) is analyzed and experimentally demonstrated for next-generation wireless-over-fiber systems. PM-Coh offers high linearity for transparent transport ...

  3. Using Disruptive Technologies to Make Digital Connections: Stories of Media Use and Digital Literacy in Secondary Classrooms

    Science.gov (United States)

    Nowell, Shanedra D.

    2014-01-01

    This study focused on ways teachers and students in an urban high school used technologies often labeled as disruptive (i.e. social media and mobile phones) as learning and relationship building tools, inside and outside the classroom. In this teacher research study, secondary teachers discussed digital literacies, the digital divide, and digital…

  4. 60 GHz 5-bit digital controlled phase shifter in a digital 40 nm CMOS technology without ultra-thick metals

    NARCIS (Netherlands)

    Gao, H.; Ying, K.; Matters-Kammerer, M.K.; Harpe, P.; Wang, B.; Liu, B.; Serdijn, W.A.; Baltus, P.G.M.

    2016-01-01

    A 5-bit digital controlled switch-type passive phase shifter realised in a 40 nm digital CMOS technology without ultra-thick metals for the 60 GHz Industrial, Scientific and Medical (ISM) band is presented. A patterned shielding with electromagnetic bandgap structure and a stacked metals method to

  5. An Ethics Whirlwind: A Perspective of the Digital Lifestyle of Digital Natives and Initial Thoughts on Ethics Education in Technology

    Science.gov (United States)

    Hall, Brian R.

    2012-01-01

    As digital natives continue rolling onto college campuses around the country, the questions surrounding digital ethics grow. Students do not know life without modern technology, computers, mobile devices, the Internet and their lifestyle has developed around this mass. Unlike their predecessors, they do not recognize a difference between the…

  6. The Digitally Disadvantaged: Access to Digital Communication Technologies among First Year Students at a Rural South African University

    Science.gov (United States)

    Oyedemi, Toks; Mogano, Saki

    2018-01-01

    Considering the importance of digital skills in university education, this article reports on a study which examined access to technology among first year students at a rural South African university. The study focused on the digital readiness of students prior to their admission to the university, since many universities provide access to…

  7. Bridging the digital divide through the integration of computer and information technology in science education: An action research study

    Science.gov (United States)

    Brown, Gail Laverne

    The presence of a digital divide, computer and information technology integration effectiveness, and barriers to continued usage of computer and information technology were investigated. Thirty-four African American and Caucasian American students (17 males and 17 females) in grades 9--11 from 2 Georgia high school science classes were exposed to 30 hours of hands-on computer and information technology skills. The purpose of the exposure was to improve students' computer and information technology skills. Pre-study and post-study skills surveys, and structured interviews were used to compare race, gender, income, grade-level, and age differences with respect to computer usage. A paired t-test and McNemar test determined mean differences between student pre-study and post-study perceived skills levels. The results were consistent with findings of the National Telecommunications and Information Administration (2000) that indicated the presence of a digital divide and digital inclusion. Caucasian American participants were found to have more at-home computer and Internet access than African American participants, indicating that there is a digital divide by ethnicity. Caucasian American females were found to have more computer and Internet access which was an indication of digital inclusion. Sophomores had more at-home computer access and Internet access than other levels indicating digital inclusion. Students receiving regular meals had more computer and Internet access than students receiving free/reduced meals. Older students had more computer and Internet access than younger students. African American males had been using computer and information technology the longest which is an indication of inclusion. The paired t-test and McNemar test revealed significant perceived student increases in all skills levels. Interviews did not reveal any barriers to continued usage of the computer and information technology skills.

  8. Digital Technology for Construction Period Reduction of Nuclear Power Plants

    Energy Technology Data Exchange (ETDEWEB)

    You, Y. M. [PHILOSOPHIA, Inc., Seoul (Korea, Republic of); Suh, K. Y. [Seoul National Univ., Seoul (Korea, Republic of)

    2009-10-15

    PHILOSOPHIA, Inc. and Seoul National University have jointly developed a first-of-a-kind engineering (FOAKE) solution. The solution lends itself to the four-plus-dimensional (4{sup +}D) Technology{sup TM} resorting to three -dimensional (3D) computer-aided design (CAD) digital mockup (DMU). The aim is to minimize the working hours via process optimization by real-time exchange of design and process information in the ubiquitous system. The 4{sup +}D Technology{sup TM} in the 3D virtual reality (VR) space and time plus cost coordinates, is developed to reduce the construction time as well as cost of nuclear power plants (NPPs) by optimizing the manufacturing procedure and construction process. The 4{sup +}D Technology{sup TM} anchored to the 3D CAD DMU allows the interference of the NPP components to be checked upon early in the design stage, and the process sequences to be optimized. Moreover, its ergonomic and robotic technologies enable simulation of all the aspects of the workers, robots and machines involved in the construction process. One of the greatest advantages of the 4{sup +}D Technology{sup TM} lies in that any change of the overall process procedures can virtually be tested. On the other hand, it shall financially be unbearable to alter the procedures consisting of plenty of structures and components, complicated detailed processes and long work hours in the physical space.

  9. Digital Technology for Construction Period Reduction of Nuclear Power Plants

    International Nuclear Information System (INIS)

    You, Y. M.; Suh, K. Y.

    2009-01-01

    PHILOSOPHIA, Inc. and Seoul National University have jointly developed a first-of-a-kind engineering (FOAKE) solution. The solution lends itself to the four-plus-dimensional (4 + D) Technology TM resorting to three -dimensional (3D) computer-aided design (CAD) digital mockup (DMU). The aim is to minimize the working hours via process optimization by real-time exchange of design and process information in the ubiquitous system. The 4 + D Technology TM in the 3D virtual reality (VR) space and time plus cost coordinates, is developed to reduce the construction time as well as cost of nuclear power plants (NPPs) by optimizing the manufacturing procedure and construction process. The 4 + D Technology TM anchored to the 3D CAD DMU allows the interference of the NPP components to be checked upon early in the design stage, and the process sequences to be optimized. Moreover, its ergonomic and robotic technologies enable simulation of all the aspects of the workers, robots and machines involved in the construction process. One of the greatest advantages of the 4 + D Technology TM lies in that any change of the overall process procedures can virtually be tested. On the other hand, it shall financially be unbearable to alter the procedures consisting of plenty of structures and components, complicated detailed processes and long work hours in the physical space

  10. Attending to others: how digital technologies direct young people's nightlife

    Directory of Open Access Journals (Sweden)

    J. Truong

    2018-05-01

    Full Text Available It is a growing phenomenon that young people use mobile information and communication technologies during their nightlife. This article offers an empirical examination of how young people's nightlife is shaped by engagement with the mobile phone application WhatsApp. Drawing on Sara Ahmed's phenomenological concept of orientation, I examine how WhatsApp extends young people's nightlife and how young people become orientated therein. On the one hand, I show that nightlife acquires new boundaries and fixities that encourage young people to direct their attention towards missing social relations and absent nightlife places. On the other hand, I find that young people create new perceptions of how to inhabit and spend leisure time and space. I argue that digital technologies reorientate young people, which I suggest offers novel means of addressing young people's contemporary nightlife practices, places, spaces, and social relations.

  11. 78 FR 36547 - Technological Advisory Council Recommendation for Improving Receiver Performance

    Science.gov (United States)

    2013-06-18

    ... of receivers in ensuring the efficient use of spectrum and to provide recommendations on avoiding obstacles posed by receiver performance to making spectrum available for new services. The Office of... Pavlak, Office of Engineering and Technology, Electromagnetic Compatibility Division, Room 6-A420...

  12. Medical image digital archive: a comparison of storage technologies

    Science.gov (United States)

    Chunn, Timothy; Hutchings, Matt

    1998-07-01

    A cost effective, high capacity digital archive system is one of the remaining key factors that will enable a radiology department to eliminate film as an archive medium. The ever increasing amount of digital image data is creating the need for huge archive systems that can reliably store and retrieve millions of images and hold from a few terabytes of data to possibly hundreds of terabytes. Selecting the right archive solution depends on a number of factors: capacity requirements, write and retrieval performance requirements, scaleability in capacity and performance, conformance to open standards, archive availability and reliability, security, cost, achievable benefits and cost savings, investment protection, and more. This paper addresses many of these issues. It compares and positions optical disk and magnetic tape technologies, which are the predominant archive mediums today. New technologies will be discussed, such as DVD and high performance tape. Price and performance comparisons will be made at different archive capacities, plus the effect of file size on random and pre-fetch retrieval time will be analyzed. The concept of automated migration of images from high performance, RAID disk storage devices to high capacity, NearlineR storage devices will be introduced as a viable way to minimize overall storage costs for an archive.

  13. Millimeter-Wave Receiver Concepts for 77 GHz Automotive Radar in Silicon-Germanium Technology

    CERN Document Server

    Kissinger, Dietmar

    2012-01-01

    The book presents the analysis and design of integrated automotive radar receivers in Silicon-Germanium technology, for use in complex multi-channel radar transceiver front-ends in the 77GHz frequency band. The main emphasis of the work is the realization of high-linearity and low-power modular receiver channels as well as the investigation of millimeter-wave integrated test concepts for the receiver front-end.

  14. Integration of the digital technologies in the teaching of astronomy

    Science.gov (United States)

    de Macedo, J. A.; Voelzke, M. R.

    2014-08-01

    This study presents results of a survey conducted at the Federal Institution of Education, Science and Technology in the North of Minas Gerais (IFNMG), and aimed to investigate the potential uses of interactive materials in the teaching of astronomy. Despite being part of official documents, proposals included in the curriculum of several states, and having contributed to human and technological development, astronomy is rarely taught adequately in the Brazilian basic education. When it is taught, it is with unsatisfactory results as presented by students and teachers as shown by several studies, such as those carried out by (Voelzke and Gonzaga, 2013). Digital technologies are commonly used by youth, but neglected by the majority of teachers. In this sense, a survey with the aim of pointing out the potential use of digital technologies in teaching astronomy was developed. An advanced course in astronomy was offered for participants with the goal to help them understand astronomical phenomena. The following steps were to be taken: i) analysis of the pedagogical projects (PPC) of the licenciates at the IFNMG, with its Campus Januária as research locus; ii) analysis of students' preconceptions about astronomy and digital technologies, identified by the application of an initial questionnaire; iii) preparation of the course taking into account the students' previous knowledge; iv) application of the education proposal developed under part-time presence modality, using various interactive tools; v) application and analysis of the final questionnaire. The test consisted of thirty-two students of physics, mathematics and biology and was conducted with the qualitative and quantitative methodology, combined with a content analysis. Among other results, it was verified that: (i) In the IFNMG only the licenciate-course in physics includes astronomy content diluted in various subjects of the curriculum; (ii) the analysis of the initial questionnaire showed even that group

  15. [Application of digital earth technology in research of traditional Chinese medicine resources].

    Science.gov (United States)

    Liu, Jinxin; Liu, Xinxin; Gao, Lu; Wei, Yingqin; Meng, Fanyun; Wang, Yongyan

    2011-02-01

    This paper describes the digital earth technology and its core technology-"3S" integration technology. The advance and promotion of the "3S" technology provide more favorable means and technical support for Chinese medicine resources survey, evaluation and appropriate zoning. Grid is a mature and popular technology that can connect all kinds of information resources. The author sums up the application of digital earth technology in the research of traditional Chinese medicine resources in recent years, and proposes the new method and technical route of investigation in traditional Chinese medicine resources, traditional Chinese medicine zoning and suitability assessment by combining the digital earth technology and grid.

  16. Impact of Digital Tooth Preparation Evaluation Technology on Preclinical Dental Students' Technical and Self-Evaluation Skills.

    Science.gov (United States)

    Gratton, David G; Kwon, So Ran; Blanchette, Derek; Aquilino, Steven A

    2016-01-01

    The aim of this study was to evaluate the effect of digital tooth preparation imaging and evaluation technology on dental students' technical abilities, self-evaluation skills, and the assessment of their simulated clinical work. A total of 80 second-year students at one U.S. dental school were assigned to one of three groups: control (n=40), E4D Compare (n=20), and Sirona prepCheck (n=20). Students in the control group were taught by traditional teaching methodologies, and the technology-assisted groups received both traditional training and supplementary feedback from the corresponding digital system. Three outcomes were measured: faculty technical score, self-evaluation score, and E4D Compare scores at 0.30 mm tolerance. Correlations were determined between the groups' scores from visual assessment and self-evaluation and between the visual assessment and digital scores. The results showed that the visual assessment and self-evaluation scores did not differ among groups (p>0.05). Overall, correlations between visual and digital assessment scores were modest though statistically significant (5% level of significance). These results suggest that the use of digital tooth preparation evaluation technology did not impact the students' prosthodontic technical and self-evaluation skills. Visual scores given by faculty and digital assessment scores correlated moderately in only two instances.

  17. Barriers and Facilitators to Using Digital Technologies in the Cooperative Learning Model in Physical Education

    Science.gov (United States)

    Bodsworth, Hannah; Goodyear, Victoria A.

    2017-01-01

    Background: The influence of technology on children's everyday lives is significant in today's society, with children described as digital natives and/or the iGeneration. There are also a range of digital technologies available for use in education and a number of pedagogical approaches reported to support technology integration and pupil learning…

  18. A Historical Perspective on Student Affairs Professionals' Use of Digital Technology

    Science.gov (United States)

    Cabellon, Edmund T.; Payne-Kirchmeier, Julie

    2016-01-01

    This chapter provides a historical perspective of student affairs professionals' use of digital and social technologies in their work on college campuses. The purpose of the chapter is to describe how digital technology tools have evolved since 2005, demonstrate how student affairs technology shifted and changed during this time, and shape student…

  19. Simultaneous Transmit and Receive Performance of an 8-channel Digital Phased Array

    Science.gov (United States)

    2017-01-16

    hardware. An 8-channel ALSTAR array prototype was constructed and demonstrated to achieve 125.5 dB effective isotropic isolation between broadside...transmit and receive beams over a 100 MHz instantaneous band centered at 2.45 GHz. I. INTRODUCTION A phased array capable of Simultaneous Transmit and...Receive (STAR) could provide significant benefits for many applications including communications, radar, spectral sens- ing, and multifunctional systems

  20. Multi-Aperture Digital Coherent Combining for Free-Space Optical Communication Receivers

    Science.gov (United States)

    2016-04-21

    emulated by a cascade of fiber beam splitters . Fig. 4(a) depicts the transmitter, which consisted of two cascaded Mach- Zehnder modulators (MZMs) that...Sons, Inc., Hoboken, New Jersey, 2006). 5. D. O. Caplan, "Laser communication transmitter and receiver design ," J. Opt. Fiber. Commun. 4(4-5), 225...and A. E. Willner, eds. (Elsevier, 2013). 7. S. B. Alexander, Optical Communication Receiver Design (SPIE, 1997). 8. D. M. Boroson, "A survey of

  1. The Impact of Interference on GNSS Receiver Observables – A Running Digital Sum Based Simple Jammer Detector

    Directory of Open Access Journals (Sweden)

    M. Z. H. Bhuiyan

    2014-09-01

    Full Text Available A GNSS-based navigation system relies on externally received information via a space-based Radio Frequency (RF link. This poses susceptibility to RF Interference (RFI and may initiate failure states ranging from degraded navigation accuracy to a complete signal loss condition. To guarantee the integrity of the received GNSS signal, the receiver should either be able to function in the presence of RFI without generating misleading information (i.e., offering a navigation solution within an accuracy limit, or the receiver must detect RFI so that some other means could be used as a countermeasure in order to ensure robust and accurate navigation. Therefore, it is of utmost importance to identify an interference occurrence and not to confuse it with other signal conditions, for example, indoor or deep urban canyon, both of which have somewhat similar impact on the navigation performance. Hence, in this paper, the objective is to investigate the effect of interference on different GNSS receiver observables in two different environments: i. an interference scenario with an inexpensive car jammer, and ii. an outdoor-indoor scenario without any intentional interference. The investigated observables include the Automatic Gain Control (AGC measurements, the digitized IF (Intermediate Frequency signal levels, the Delay Locked Loop and the Phase Locked Loop discriminator variances, and the Carrier-to-noise density ratio (C/N0 measurements. The behavioral pattern of these receiver observables is perceived in these two different scenarios in order to comprehend which of those observables would be able to separate an interference situation from an indoor scenario, since in both the cases, the resulting positioning accuracy and/or availability are affected somewhat similarly. A new Running Digital Sum (RDS -based interference detection method is also proposed herein that can be used as an alternate to AGC-based interference detection. It is shown in this paper

  2. Analog and digital appliance technology for the control and monitoring of space HVAC systems

    Energy Technology Data Exchange (ETDEWEB)

    Gyoeri, M

    1987-01-01

    Both analog and digital devices are expected to meet the required control functions. The analog control device meets this function by way of a complicated circuitry and wiring technology of varying sophistication. In the digital control by a preprogrammed microprocessor. Digital technology allows to use the copied programme in different devices. Any change in the control of a system can be implemented and met by a programme change in digital technology. In analog technology, this change involves a change in wiring. (orig./HW).

  3. Using Information and Communication Technology (ICT) to the Maximum: Learning and Teaching Biology with Limited Digital Technologies

    Science.gov (United States)

    Van Rooy, Wilhelmina S.

    2012-01-01

    Background: The ubiquity, availability and exponential growth of digital information and communication technology (ICT) creates unique opportunities for learning and teaching in the senior secondary school biology curriculum. Digital technologies make it possible for emerging disciplinary knowledge and understanding of biological processes…

  4. Digital time stamping system based on open source technologies.

    Science.gov (United States)

    Miskinis, Rimantas; Smirnov, Dmitrij; Urba, Emilis; Burokas, Andrius; Malysko, Bogdan; Laud, Peeter; Zuliani, Francesco

    2010-03-01

    A digital time stamping system based on open source technologies (LINUX-UBUNTU, OpenTSA, OpenSSL, MySQL) is described in detail, including all important testing results. The system, called BALTICTIME, was developed under a project sponsored by the European Commission under the Program FP 6. It was designed to meet the requirements posed to the systems of legal and accountable time stamping and to be applicable to the hardware commonly used by the national time metrology laboratories. The BALTICTIME system is intended for the use of governmental and other institutions as well as personal bodies. Testing results demonstrate that the time stamps issued to the user by BALTICTIME and saved in BALTICTIME's archives (which implies that the time stamps are accountable) meet all the regulatory requirements. Moreover, the BALTICTIME in its present implementation is able to issue more than 10 digital time stamps per second. The system can be enhanced if needed. The test version of the BALTICTIME service is free and available at http://baltictime. pfi.lt:8080/btws/ and http://baltictime.lnmc.lv:8080/btws/.

  5. Digital and Collaborative Technologies for Smarter Distance Education

    Directory of Open Access Journals (Sweden)

    OLIVEIRA, E. A

    2014-12-01

    Full Text Available With the integration of web 2.0 and social technologies into educational practices, researchers have been faced with the challenge of providing better online virtual learning environments, that engage students in the learning processes. This challenge entails using the massive amounts of knowledge we generate in our digital footprints to provide personalized learning contents. In our research group, we have tried to tackle this challenge by answering two questions: (i How to share, at the same time, the knowledge of a virtual course in a decentralized way in Social Networks, MOOC, VLE and others? (ii How to provide pedagogical practices in virtual learning environments that allow students to build their knowledge in an autonomous and reflective way? In this article we present the work we have carried out to answer both questions.

  6. Digital innovations and emerging technologies for enhanced recovery programmes

    DEFF Research Database (Denmark)

    Michard, F; Gan, T J; Kehlet, H

    2017-01-01

    Enhanced recovery programmes (ERPs) are increasingly used to improve post-surgical recovery. However, compliance to various components of ERPs-a key determinant of success-remains sub-optimal. Emerging technologies have the potential to help patients and caregivers to improve compliance with ERPs...... of the above-mentioned ERP elements is omitted during the surgical journey.By optimizing compliance to the multiple components of ERPs, digital innovations, non-invasive techniques and wearable sensors have the potential to magnify the clinical and economic benefits of ERPs. Among the growing number...... of technical innovations, studies are needed to clarify which tools and solutions have real clinical value and are cost-effective....

  7. Reconfigurable digital receiver for 8PSK subcarrier multiplexed and 16QAM single carrier phase‐modulated radio over fiber links

    DEFF Research Database (Denmark)

    Guerrero Gonzalez, Neil; Zibar, Darko; Yu, Xianbin

    2011-01-01

    A reconfigurable digital receiver based on the k‐means algorithm is proposed for phase‐modulated subcarrier multiplexed (SCM) and quadrature amplitude‐modulated single carrier, phase‐modulated radio‐over‐fiber links. We report successful demodulation after 40 km single mode fiber transmission wit...... with three 50 Mbaud 8PSK SCM signals and a 312.5 Mbaud 16QAM single carrier. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1015–1018, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25905...

  8. Cognitive digital receiver for burst mode phase modulated radio over fiber links

    DEFF Research Database (Denmark)

    Guerrero Gonzalez, Neil; Zibar, Darko; Tafur Monroy, Idelfonso

    2010-01-01

    A novel cognitive receiver for modulation format recognition with reconfigurable carrier recovery scheme is proposed and experimentally demonstrated for phase modulated radio-over-fibre links. Demodulation of burst-mode mixed modulation formats (PSK and QAM) is demonstrated after 40km...

  9. Robust sigma delta converters : and their application in low-power highly-digitized flexible receivers

    NARCIS (Netherlands)

    Veldhoven, van R.H.M.; Roermund, van A.H.M.

    2011-01-01

    Sigma Delta converters are a very popular choice for the A/D converter in multi-standard, mobile and cellular receivers. Key A/D converter specifications are high dynamic range, robustness, scalability, low-power and low EMI. Robust Sigma Delta Converters presents a requirement derivation of a Sigma

  10. Design and simulation of stratified probability digital receiver with application to the multipath communication

    Science.gov (United States)

    Deal, J. H.

    1975-01-01

    One approach to the problem of simplifying complex nonlinear filtering algorithms is through using stratified probability approximations where the continuous probability density functions of certain random variables are represented by discrete mass approximations. This technique is developed in this paper and used to simplify the filtering algorithms developed for the optimum receiver for signals corrupted by both additive and multiplicative noise.

  11. Low-level software for the pentek 6510 digital receiver board applied to the new AD beam measurement system

    CERN Document Server

    Angoletta, Maria Elena

    2002-01-01

    The new beam measurement system for the CERN Antiproton Decelerator heavily relies on a Pentek 6510 Digital Receiver (DRX) board. The new system goal is to extract beam parameters from pickup signals. Its digital implementation allows for higher precision, easier management of the hardware as well as modification and improvement with no hardware change. In this scheme, this innovative VME DRX board is responsible for parallel data acquisition, independent digital down conversion and processing of up to 4 digitised inputs. The in-house- developed low-level code (LLC), running on the board, takes care of several tasks, such as interfacing with the Real Time Task (RTT), data processing and board managing. The RTT runs on a PowerPC VME board and controls the DRX board as a master. The LLC is a state machine developed in C and Assembler, which services several interrupts and performs the FFT of complex input data. The DRX low-level system developed is highly modular and easily adaptable to other processing scenari...

  12. A 16 b 2 GHz digital-to-analog converter in 0.18 μm CMOS with digital calibration technology

    International Nuclear Information System (INIS)

    Yang Weidong; Pu Jie; Zhang Ruitao; Chen Chao; Zang Jiandong; Li Tiehu; Luo Pu

    2015-01-01

    This paper presents a 16-bit 2 GSPS digital-to-analog converter (DAC) in 0.18 μm CMOS technology. This DAC is implemented using time division multiplex access system architecture in the digital domain. The input data is received with a two-channel LVDS interface. The DLL technology is introduced to meet the timing requirements between phases of the LVDS data and the data sampling clock. A FIFO is designed to absorb the phase difference between the data clock and DAC system clock. A delay controller is integrated to adjust the phase relationship between the high speed digital clock and analog clock, obtaining a sampling rate of 2 GSPS. The current source mismatch at higher bits is calibrated in the digital domain. Test results show that the DAC achieves 74.02 dBC SFDR at analog output of 36 MHz, and DNL less than ±2.1 LSB and INL less than ±4.3 LSB after the chip is calibrated. (paper)

  13. Battlefield Environment Technology Transfer During Digital Capstone Exercise II

    National Research Council Canada - National Science Library

    Barnes, Eugene S

    2002-01-01

    During Digital Capstone Exercise (DCX ) II, the 4th Infantry Division (4ID) employed the U.S. Army s first digitized heavy division enabled by modern warfighting doctrine, structure, and systems, such as the Army Battle Command System...

  14. Dental practitioners and a digital future: an initial exploration of barriers and incentives to adopting digital technologies.

    Science.gov (United States)

    van der Zande, M M; Gorter, R C; Wismeijer, D

    2013-12-01

    Digital technologies are proliferating into dental practices. While their technical attributes have often been studied, it remains unclear why some dentists adopt and use these technologies more than others. AIM To explore the incentives for and barriers against accepting and using digital dental technologies. Eleven semi-structured qualitative interviews were conducted with experts in dentistry, dental technology and dental education in the Netherlands. Dentists' acceptance and use of digital technologies are to varying degrees driven by the perceived advantages over analogue methods, perceived influence on treatment quality, dentists' personal and professional orientation, and social influence from peers and external groups. These effects are complemented by personal and dental-practice characteristics. The findings suggest that there are large differences in motivation to adopt and use digital technologies between early adopters, late adopters and non-adopters, which should be examined in greater detail. We recommend that educators, dentists, and representatives of the dental industry who deal with the diffusion of these technologies take account of dentists' widely different attitudes to digitalisation.

  15. Summary of: dental practitioners and a digital future: an initial exploration of barriers and incentives to adopting digital technologies.

    Science.gov (United States)

    Addy, Liam

    2013-12-01

    Digital technologies are proliferating into dental practices. While their technical attributes have often been studied, it remains unclear why some dentists adopt and use these technologies more than others. AIM To explore the incentives for and barriers against accepting and using digital dental technologies. Eleven semi-structured qualitative interviews were conducted with experts in dentistry, dental technology and dental education in the Netherlands. Dentists' acceptance and use of digital technologies are to varying degrees driven by the perceived advantages over analogue methods, perceived influence on treatment quality, dentists' personal and professional orientation, and social influence from peers and external groups. These effects are complemented by personal and dental-practice characteristics. The findings suggest that there are large differences in motivation to adopt and use digital technologies between early adopters, late adopters and non-adopters, which should be examined in greater detail. We recommend that educators, dentists, and representatives of the dental industry who deal with the diffusion of these technologies take account of dentists' widely different attitudes to digitalisation.

  16. Empowering the creativity of children through the use of digital video technology in workshops

    OpenAIRE

    Bhimani, Janak; 中村, 伊知哉

    2011-01-01

    Nevermore has technology been more pervasive in people's daily lives. Children, by virtue of their age, are the earliest early-adopters of new technology. Digital video technology, especially with developments in the last decade, is now everywhere. However, there is a lack of education and training on how to use digital video technology in order to expand the creative possibilities of children and their imagination. The research in this thesis attempts to present some solutions on how to chal...

  17. The digital divide among young people in Brussels: Social and cultural influences on ownership and use of digital technologies

    OpenAIRE

    Mertens, Stefan; d'Haenens, Leen

    2010-01-01

    This article reports on a survey of youth in Brussels (N = 1,005) and their ownership and use of digital technologies, focusing specifically on the social and cultural diversity within this group. Socio-cultural diversity includes differences regarding ethnicity and gender, language and educational attainment, as well as social and economic status. The relationship of these socio-cultural differences with the digital divide in terms of ownership and use is investigated. The data show a persis...

  18. Organizational Influences in Technology Adoption Decisions: A Case Study of Digital Libraries

    Science.gov (United States)

    Oguz, Fatih

    2016-01-01

    The purpose of this study was to understand the organizational level decision factors in technology adoption in the context of digital libraries. A qualitative case study approach was used to investigate the adoption of a specific technology, XML-based Web services, in digital libraries. Rogers' diffusion of innovations and Wenger's communities of…

  19. Embracing Digital Technologies in Classroom Practice: The Impact of Teacher Identity

    Science.gov (United States)

    Abbott, Rosemary

    2016-01-01

    It is often perceived that learning in 21st century classrooms will involve extensive use of digital technologies. This paper, based on a qualitative research investigation at a private girls' college in Melbourne, explores the impact of teacher subjectivities on the need to change through the integration of digital technologies into classroom…

  20. The Impact of Digital Video Technology on Production: The Case of "American Gothic."

    Science.gov (United States)

    Fink, Edward J.

    1997-01-01

    Opines that the study of video production is important in better understanding the aural/visual aspects of television, especially since television production is undergoing a digital revolution. Assesses the impact of new technologies by examining a "cutting-edge" program, "American Gothic." Finds that digital technology offers…

  1. iGeneration: The Social Cognitive Effects of Digital Technology on Teenagers

    Science.gov (United States)

    Ives, Eugenia A.

    2012-01-01

    The purpose of this study was to examine and better understand the social cognitive effects of digital technology on teenagers' brains and their socialization processes, as well as to learn best practices with regard to digital technology consumption. An extensive literature review was conducted on the social cognitive effects of digital…

  2. Teachers' Use of Digital Technology in Secondary Music Education: Illustrations of Changing Classrooms

    Science.gov (United States)

    Wise, Stuart; Greenwood, Janinka; Davis, Niki

    2011-01-01

    The music industry in the 21st century uses digital technology in a wide range of applications including performance, composition and in recording and publishing. Much of this digital technology is freely available via downloads from the internet, as part of software included with computers when they are purchased and via applications that are…

  3. Teaching in a Digital Age: How Educators Use Technology to Improve Student Learning

    Science.gov (United States)

    McKnight, Katherine; O'Malley, Kimberly; Ruzic, Roxanne; Horsley, Maria Kelly; Franey, John J.; Bassett, Katherine

    2016-01-01

    A successful digital conversion for classrooms, districts, and states is not determined by the technology, but by how technology enables teaching and learning. The purpose of our multisite case study was to document digital instructional strategies teachers use to enhance and transform student learning, and align that use with learning research.…

  4. How Digital Technologies, Blended Learning and MOOCs Will Impact the Future of Higher Education

    Science.gov (United States)

    Morris, Neil P.

    2014-01-01

    Digital technologies are revolutionizing all parts of society, including higher education. Universities are rapidly adapting to the prevalence of staff and student mobile devices, digital tools and services on campus, and are developing strategies to harness these technologies to enhance student learning. In this paper, I explore the use of…

  5. Exploring How Digital Media Technology Can Foster Saudi EFL Students' English Language Learning

    Science.gov (United States)

    Altawil, Abdulmohsin

    2016-01-01

    Digital media technology has become an integral part of daily life for almost all young students, and for the majority of Saudi EFL (English as a Foreign Language) students. Digital media technology may not be limited to one or two kinds; it has various types such as software and programs, devices, application, websites, social media tools, etc.…

  6. Technology Knowledge Self-Assessment and Pre-Test Performance among Digital Natives

    Science.gov (United States)

    Nelms, Keith R.

    2015-01-01

    According to education pundits, traditional-age college students are "digital natives" inherently savvy in digital technology due to their constant exposure to technology from an early age. This widely held meme is at odds with observation in the college classroom. In this research, college students in an introductory information…

  7. Comic Relief: Graduate Students Address Multiple Meanings for Technology Integration with Digital Comic Creation

    Science.gov (United States)

    Sockman, Beth Rajan; Sutton, Rhonda; Herrmann, Michele

    2016-01-01

    This study determined the usefulness of digital comic creation with 77 graduate students in a teacher technology course. Students completed an assigned reading and created digital comics that addressed technology integration concerns in the schools and society. Using practical action research, 77 student-created comics were analyzed. The findings…

  8. Using Digital Technology to See Angles from Different Angles. Part 1: Corners

    Science.gov (United States)

    Host, Erin; Baynham, Emily; McMaster, Heather

    2014-01-01

    In Part 1 of their article, Erin Host, Emily Baynham and Heather McMaster use a combination of digital technology and concrete materials to explore the concept of "corners". They provide a practical, easy to follow sequence of activities that builds on students' understandings. [For "Using Digital Technology to See Angles from…

  9. The Air Force Manufacturing Technology (MANTECH): Technology transfer methodology as exemplified by the radar transmit/receive module program

    Science.gov (United States)

    Houpt, Tracy; Ridgely, Margaret

    1991-01-01

    The Air Force Manufacturing Technology program is involved with the improvement of radar transmit/receive modules for use in active phased array radars for advanced fighter aircraft. Improvements in all areas of manufacture and test of these modules resulting in order of magnitude improvements in the cost of and the rate of production are addressed, as well as the ongoing transfer of this technology to the Navy.

  10. A Strategic Necessity: Building Senior Leadership's Fluency in Digital Technology

    Science.gov (United States)

    Kolomitz, Kara; Cabellon, Edmund T.

    2016-01-01

    This chapter describes the opportunity for senior student affairs officers (SSAOs) to develop an increased digital fluency to meet the needs of various constituencies in the digital age. The authors explore what a digital fluency is, how it might impact SSAOs' leadership potential, and the benefits for their respective divisions.

  11. Principles of transistor circuits introduction to the design of amplifiers, receivers and digital circuits

    CERN Document Server

    Amos, S W

    1990-01-01

    Principles of Transistor Circuits, Seventh Edition discusses the fundamental concepts of transistor circuits. The book is comprised of 16 chapters that cover amplifiers, oscillators, and generators. Chapter 1 discusses semiconductors and junction nodes, while Chapter 2 covers the basic principles of transistors. The subsequent chapters focus on amplifiers, where one of the chapters discusses bias and D.C. The book also talks about sinusoidal oscillators and covers modulators, demodulators, mixers, and receivers. Chapters 13 and 14 discuss pulse generators and sawtooth generators, respectively.

  12. Digital innovations and emerging technologies for enhanced recovery programmes.

    Science.gov (United States)

    Michard, F; Gan, T J; Kehlet, H

    2017-07-01

    Enhanced recovery programmes (ERPs) are increasingly used to improve post-surgical recovery. However, compliance to various components of ERPs-a key determinant of success-remains sub-optimal. Emerging technologies have the potential to help patients and caregivers to improve compliance with ERPs.Preoperative physical condition, a major determinant of postoperative outcome, could be optimized with the use of text messages (SMS) or digital applications (Apps) designed to facilitate smoking cessation, modify physical activity, and better manage hypertension and diabetes. Several non-invasive haemodynamic monitoring techniques and decision support tools are now available to individualize perioperative fluid management, a key component of ERPs. Objective nociceptive assessment may help to rationalize the use of pain medications, including opioids. Wearable sensors designed to monitor cardio-respiratory function may help in the early detection of clinical deterioration during the postoperative recovery and to address 'failure to rescue'. Activity trackers may be useful to monitor early mobilization, another major element of ERPs. Finally, electronic checklists have been developed to ensure that none of the above-mentioned ERP elements is omitted during the surgical journey.By optimizing compliance to the multiple components of ERPs, digital innovations, non-invasive techniques and wearable sensors have the potential to magnify the clinical and economic benefits of ERPs. Among the growing number of technical innovations, studies are needed to clarify which tools and solutions have real clinical value and are cost-effective. © The Author 2017. Published by Oxford University Press on behalf of the British Journal of Anaesthesia. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  13. An Investigation of Pre-Service Primary School Teachers' Attitudes towards Digital Technology and Digital Citizenship Levels in Terms of Some Variables

    Science.gov (United States)

    Çiftci, Serdar; Aladag, Soner

    2018-01-01

    This study aims at investigating the relationship between pre-service primary school teachers' attitudes towards digital technology and digital citizenship scale levels. The research was designed in descriptive survey model. The data collection tools were "Attitude Scale for Digital Technology" (ASDT) developed by Cabi (2016) and…

  14. The emergent role of digital technologies in the Circular Economy: A review

    DEFF Research Database (Denmark)

    Pagoropoulos, Aris; Pigosso, Daniela Cristina Antelmi; McAloone, Tim C.

    2017-01-01

    Digital technologies have enabled the formulation of multiple Product Service-Systems (PSS) with considerable economic, environmental and societal benefits. One of the most promising paradigms, which is inspired by business models and value propositions that have already been described in the PSS....... The study concludes by identifying research gaps, reflecting on the application of digital technologies in the field of PSS and proposing suggestions for future research....... literature, is the concept of Circular Economy. Circular Economy is characterized as an economy that is restorative and regenerative by design and is attracting significant attention from researchers and policy makers alike. In light of the recent proliferation of digital technologies such as Big Data...... and the Internet of Things, this article attempts to identify how can digital technologies support the transition to Circular Economy. This article conducted a systematic review of the literature based on a review protocol, in an effort to evaluate the application of key digital technologies in Circular Economy...

  15. 75 FR 1446 - Rate of Payment for Medical Records Received Through Health Information Technology (IT) Necessary...

    Science.gov (United States)

    2010-01-11

    ... Received Through Health Information Technology (IT) Necessary To Make Disability Determinations AGENCY... Federal Register. FOR FURTHER INFORMATION CONTACT: Cheryl Elksnis, Office of Disability Programs, Social Security Administration, 6401 Security Boulevard, Baltimore, MD 21235-6401, 410-966-0497, for information...

  16. Teaching with technology: automatically receiving information from the internet and web.

    Science.gov (United States)

    Wink, Diane M

    2010-01-01

    In this bimonthly series, the author examines how nurse educators can use the Internet and Web-based computer technologies such as search, communication, and collaborative writing tools, social networking and social bookmarking sites, virtual worlds, and Web-based teaching and learning programs. This article presents information and tools related to automatically receiving information from the Internet and Web.

  17. 47 CFR 15.120 - Program blocking technology requirements for television receivers.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 1 2010-10-01 2010-10-01 false Program blocking technology requirements for television receivers. 15.120 Section 15.120 Telecommunication FEDERAL COMMUNICATIONS COMMISSION GENERAL RADIO... transmitted pursuant to industry standard EIA/CEA-766-A “U.S. and Canadian Region Rating Tables (RRT) and...

  18. Using Digital Technologies in Clinical HIV Research: Real-World Applications and Considerations for Future Work.

    Science.gov (United States)

    Andriesen, Jessica; Bull, Sheana; Dietrich, Janan; Haberer, Jessica E; Van Der Pol, Barbara; Voronin, Yegor; Wall, Kristin M; Whalen, Christopher; Priddy, Frances

    2017-07-31

    Digital technologies, especially if used in novel ways, provide a number of potential advantages to clinical research in trials related to human immunodeficiency virus (HIV) and acquired immune deficiency syndrome (AIDS) and may greatly facilitate operations as well as data collection and analysis. These technologies may even allow answering questions that are not answerable with older technologies. However, they come with a variety of potential concerns for both the participants and the trial sponsors. The exact challenges and means for alleviation depend on the technology and on the population in which it is deployed, and the rapidly changing landscape of digital technologies presents a challenge for creating future-proof guidelines for technology application. The aim of this study was to identify and summarize some common themes that are frequently encountered by researchers in this context and highlight those that should be carefully considered before making a decision to include these technologies in their research. In April 2016, the Global HIV Vaccine Enterprise surveyed the field for research groups with recent experience in novel applications of digital technologies in HIV clinical research and convened these groups for a 1-day meeting. Real-world uses of various technologies were presented and discussed by 46 attendees, most of whom were researchers involved in the design and conduct of clinical trials of biomedical HIV prevention and treatment approaches. After the meeting, a small group of organizers reviewed the presentations and feedback obtained during the meeting and categorized various lessons-learned to identify common themes. A group of 9 experts developed a draft summary of the findings that was circulated via email to all 46 attendees for review. Taking into account the feedback received, the group finalized the considerations that are presented here. Meeting presenters and attendees discussed the many successful applications of digital

  19. Digital culture as a converging paradigm for technology and culture: Challenges for the culture sector

    Directory of Open Access Journals (Sweden)

    Aleksandra Uzelac

    2010-05-01

    Full Text Available Digital culture is a new and complex concept. Digital advances are increasingly interacting with the world of culture and the arts, leading to a convergence of technologies, media and information and shaping communication modes. The new possibilities offered by the digital technologies -namely, global connectivity and the emergence of new networks- challenge our traditional understanding of culture and make it necessary for us to take on the board the concept of a digital culture. This article views digital culture as a new social system that determines experiences and opportunities for the citizens of today. Digital technologies and the networked environment have introduced new practices, opportunities and threats, and the culture sector needs to find appropriate ways for operating in this new reality.

  20. The Relationship Between Digital Technology Experience, Daily Media Exposure and Working Memory Capacity

    Directory of Open Access Journals (Sweden)

    Muhterem DİNDAR

    2016-06-01

    Full Text Available Today’s youngsters interact with digital technologies to a great extent which leads scholars to question the influence of this exposure on human cognitive structure. Through resorting to digital nativity assumptions, it is presumed that cognitive architecture of the youth may change in accordance with digital technology use. In this regard, the current study investigated the relationship between digital technology experience, daily media exposure and working memory capacity of so-called digital native participants. A total of 572 undergraduate students responded to self-report measures, which addressed years of experience for 7 different digital devices and the daily time spent for 14 different digital activities. Participants’ working memory capacity was measured through the Computation Span and the Dot Matrix Test. While the former was used to measure the phonological loop capacity, the latter was used to address the visuo-spatial sketchpad capacity. Correlational analyses revealed that neither the phonological loop capacity nor the visuo-spatial sketchpad capacity was related to digital technology experience and daily media exposure. Thus, the transformative contribution of digital technology experience to human cognitive architecture could not be observed through the current measures

  1. "Freely Ye Have Received, Freely Give" (Matthew 10: 8)--How Giving Away Religious Digital Books Influences the Print Sales of Those Books

    Science.gov (United States)

    Hilton, John, III.

    2010-01-01

    Lack of access prevents many from benefiting from educational resources. Digital technologies now enable educational resources, such as books, to be openly available to those with access to the Internet. This study examined the financial viability of a religious publisher's putting free digital versions of eight of its books on the Internet. The…

  2. Digital Technology in Preservation of Buddist Monastery Treasures

    Science.gov (United States)

    Shaftel, A.

    2017-08-01

    Treasure Caretaker Training (Digital Monastery Project), teaches Buddhist monks, nuns and community cultural caretakers to protect and preserve their own monastery sacred art treasures. Participants learn to create digital inventories by use of their own mobile phones. Included in this documentation is the video interview of elders who hold the oral history of many of the treasures. Risk assessment and disaster mitigation are taught.

  3. Augmented Ontologies: The Question Concerning Digital Technology and Projectual Humanism

    NARCIS (Netherlands)

    S. Gualeni (Stefano)

    2014-01-01

    markdownabstract__Abstract__ The values of Western culture are conducive to spending a considerable amount of resources on the development of computer games, digital social networks, special effects for movies, et cetera (Bolter, 2003). With the increasingly more prominent role of digital media1

  4. Supporting Digital Natives to Learn Effectively with Technology Tools

    Science.gov (United States)

    Keengwe, Jared; Georgina, David

    2013-01-01

    Majority of learners in our classrooms are digital natives or Millennials--a category of learners who tend toward independence and autonomy in their learning styles. The primary challenges then facing instructors include: How do digital natives learn and how do you teach them? The answers to these questions will help instructors to: (a) identify…

  5. The digital divide among young people in Brussels: Social and cultural influences on ownership and use of digital technologies

    NARCIS (Netherlands)

    Mertens, S.; d'Haenens, L.S.J.

    2010-01-01

    This article reports on a survey of youth in Brussels (N = 1,005) and their ownership and use of digital technologies, focusing specifically on the social and cultural diversity within this group. Socio-cultural diversity includes differences regarding ethnicity and gender, language and educational

  6. High Performance Low Cost Digitally Controlled Power Conversion Technology

    DEFF Research Database (Denmark)

    Jakobsen, Lars Tønnes

    2008-01-01

    in order to reduce the power consumption of servers and datacenters. The work presented in this thesis includes digital control methods for switch-mode converters implemented in microcontrollers, digital signal controllers and field programmable gate arrays. Microcontrollers are cheap devices that can...... be used for real-time control of switch-mode converters. Software design in the assembly language of the microcontroller is important because of the limited resources of the microcontroller. Microcontrollers are best suited for power electronics applications with low bandwidth requirements because...... the execution time of the software algorithm that realises the digital control law will constitute a considerable delay in the control loop. Digital signal controllers are powerful devices capable of performing arithmetic functions much faster than a microcontroller can. Digital signal controllers are well...

  7. Digital maintenance field technology for the maintenance of nuclear power plant

    International Nuclear Information System (INIS)

    Sato, Tomomasa; Asama, Hajime; Kita, Nobuyuki; Numano, Masayoshi

    2002-01-01

    This paper proposes a concept of 'Digital Maintenance Field Technology', which enables human beings and working robots making fully use of the necessary information for maintenance activity not only in any location of the maintenance field (seamless in location) but also in any moment from the past to the future (seamless in time) and in any format in presenting to human (seamless in semantics). The paper points out the following three essential components of the technology: 1) 'Digital Field Construction Technology', 2) 'Digital Field Archival Technology' and 3) 'Digital Field Presentation Technology'. The necessary capabilities are extracted and our approaches and state of the art of realizing these capabilities are introduced in addition to present the state of the art of home application example. The future extension is also illustrated. (author)

  8. Digital divide across borders : A cross-national study of adolescents’ use of digital technologies

    NARCIS (Netherlands)

    Notten, N.; Peter, J.; Kraaykamp, G.; Valkenburg, P.M.

    2009-01-01

    In this study, we analyse digital divides in terms of social inequality in digital access and use patterns from a hierarchical perspective. Using data from the Programme for International Student Assessment (PISA) 2003 in 30 nations, we focus on social cleavages in mid-adolescents’ access and use of

  9. Study of the Calibration Channel Width for a Digital Sideband Separating System for SIS 2SB Receiver

    Science.gov (United States)

    Khudchenko, Andrey; Finger, R.; Baryshev, A. M.; Mena, F. P.; Rodriguez, R.; Hesper, R.; Fuentes, R.; Bronfman, L.

    2018-01-01

    A Digital Sideband Separating (DSS) system has been recently applied to a full 2SB receiver, i.e., one with the analog IF hybrid still in place. This concept allows reaching IRR level around 45 dB and it presents additional advantages in calibration stability compared to the case when no IF hybrid is present. If implemented in multipixel cameras, the DSS system relaxes the requirements for the IRR level of the analog receiver substantially enabling to reach at least an IRR of 30 dB with relatively simple hardware. It would be ideal for spectral line surveys since it practically eliminates the line confusion in addition to rejecting the atmospheric noise in the image band. Therefore, the DSS system is a potential option for a future ALMA upgrade. Here we present our study on an important practical question: how wide should the calibration-channel width in order to reach a desired IRR level? This parameter determines, for a large part, the calibration speed of the DSS system and influences the back-end architecture. We estimate that for currently installed ALMA bands (B3-B8), the channel width of the DSS system can be at least 45 MHz to reach a 30db IRR level in entire band.

  10. Access to Technology in Transnational Social Fields: Simultaneity and Digital Literacy Socialization of Adult Immigrants

    Science.gov (United States)

    Nogueron-Liu, Silvia

    2013-01-01

    Some studies of technology use by immigrants have explored the role of digital media in their maintenance of affiliations with their nations of origin. However, the potential for transnational social networks to serve as "resources" that facilitate digital literacy socialization for adult immigrant learners remains unexplored. In this…

  11. Using TPCK with Digital Storytelling to Investigate Contemporary Issues in Educational Technology

    Science.gov (United States)

    Maddin, Ellen

    2012-01-01

    Digital storytelling is recognized as a motivating instructional approach that engages students in critical thinking and reflective learning. Technology tools that support digital storytelling are readily available and much easier to use today than they were in years past. The convergence of these factors has facilitated the inclusion of digital…

  12. Creativity in the Age of Technology: Measuring the Digital Creativity of Millennials

    Science.gov (United States)

    Hoffmann, Jessica; Ivcevic, Zorana; Brackett, Marc

    2016-01-01

    Digital technology and its many uses form an emerging domain of creative expression for adolescents and young adults. To date, measures of self-reported creative behavior cover more traditional forms of creativity, including visual art, music, or writing, but do not include creativity in the digital domain. This article introduces a new measure,…

  13. The Contributions of Digital Communications Technology to Human Rights Education: A Case Study of Amnesty International

    Science.gov (United States)

    Norlander, Rebecca Joy

    2013-01-01

    This dissertation addresses the need for critical assessment and evaluation of human rights education (HRE) programs and activities, especially newer initiatives that incorporate the use of digital information and communications technology (ICT). It provides an in-depth case study of the use of digital ICT in Amnesty International's HRE efforts,…

  14. Beyond Digital Natives: European Research on Media Education; Challenges of Technology and Pedagogical Issues

    Science.gov (United States)

    Rivoltella, Pier Cesare

    2012-01-01

    This article aims to map issues of Media Education currently under debate in Europe. It points out three main research trends. The first one concerns digital natives and their skills in media and technologies. Here we have quite a dialectic situation: on the one hand, a lot of scholars and policymakers are sure that digital natives exist, that…

  15. After Virtual Archaeology: Rethinking Archaeological Approaches to the Adoption of Digital Technology

    Directory of Open Access Journals (Sweden)

    Gareth Beale

    2017-06-01

    Full Text Available In the 1980s archaeologists embraced the rapidly expanding field of computer modelling and visualisation as a vehicle for data exploration. Against this backdrop 'virtual archaeology' was conceived. The term was originally intended to describe a multidimensional approach to the modelling of the (immaterial structures and processes of field archaeology. It described how technology could be harnessed in order to achieve new ways of documenting, interpreting and annotating primary archaeological discoveries and processes. Despite their initial promise, these digital technologies failed to have the impact upon archaeological fieldwork that might have been expected. Even with the prevalence of digital devices on all archaeological excavations, the documentation, interpretation and subsequent narration of archaeological processes have retained their analogue character. While the archaeological record is now primarily digital, its sections, plans, drawings and photographs are facsimiles of the analogue technologies that preceded them. This retention of analogue conventions is increasingly out of step with the general prevalence and diversity of digital technologies as mediators of professional and private life. It is also challenged by 21st-century advances towards technologies that allow for complex engagements with and representations of physical matter and facilitate the interplay between digital and material worlds. This article argues that emerging forms of archaeological practice including gaming, mixed reality, computational photography and additive manufacturing, reveal digital archaeology to be a creative process, blending computational thinking, technological opportunities and established disciplinary traditions. We go on to suggest that digital archaeology, conceived as a form of practice rather than as a toolset, represents a locus for theory generation and critical thinking. Failure to recognise the skills and ideas that have emerged in

  16. Pre-School Children Creating and Communicating with Digital Technologies in the Home

    Science.gov (United States)

    McPake, Joanna; Plowman, Lydia; Stephen, Christine

    2013-01-01

    There is a limited literature on pre-school children's experiences with "digital technologies" at home and little discussion of the ways in which children harness these technologies for their own purposes. This paper discusses findings drawn from three studies that investigated the role of "domestic technologies" and…

  17. Making Sense of Young People, Education and Digital Technology: The Role of Sociological Theory

    Science.gov (United States)

    Selwyn, Neil

    2012-01-01

    This paper considers the contribution of sociological theory to the academic study of young people, education and digital technology. First it discusses the shortcomings of the technological and socially determinist views of technology and education that prevail in current academic and policy discussions. Against this background the paper outlines…

  18. Pervasive Technologies and the Paradoxes of Multimodal Digital Communication

    Directory of Open Access Journals (Sweden)

    Sandra Petroni

    2014-12-01

    Full Text Available Contemporary societies are greatly challenged by paradoxes in all facets of life. Digital communication encodes and produces meaning by making use of these contradictory relations. In this contribution, three digital paradoxes will be presented. The first paradox is grounded in the process of remediation in digital settings which mirrors a contradictory double logic. Digital culture, in fact, wants both to multiply its media and to eliminate all traces of mediation. The second antinomy has its origins in the new concept of linguistic entropy: a structured information disorder that is regulated by usability and multimodality. In accordance with the second paradox, the third one stems from further processes that are framing, a multimodal resource, and linking, a hypertextual resource.

  19. Poor need knowledge not only technology to bridge digital divide: experts

    CERN Multimedia

    2003-01-01

    "Developing countries need to gain knowledge rather than technology to latch onto the booming information society, experts said Monday ahead of a major conference on bridging the digital divide between rich and poor" (1/2 page).

  20. Genre, technology and embodied interaction: The evolution of digital game genres and motion gaming

    Directory of Open Access Journals (Sweden)

    Andreas Gregersen

    2011-11-01

    Full Text Available Technology has been given relatively little attention in genre theory, but this article argues that material technologies can be important components in genre development. The argument is based on a historically informed analysis of digital games, with special attention paid to home console video games and recent genre developments within this domain commonly referred to as motion gaming. The main point is that digital game genres imply structured embodied activity. A constitutive element of digital game mediation is a control interface geared to player embodiment, and I propose the concept of ‘interaction modes’ to describe the coupling of technology and player embodiment and show how this can be integrated with genre theory. The resulting framework allows for increased attention to continuity and change in game and communication genres, material and digital technologies, and the related interaction modes.

  1. Technology qualification of an ambient pressure subsea cryogenic pipeline for offshore LNG loading and receiving terminals

    Energy Technology Data Exchange (ETDEWEB)

    Hussain, Afzal; Viteri, Martha; D' Angelo, Luis [Det Norske Veritas (DNV), Rio de Janeiro, RJ (Brazil); Prescott, Neal; Zhang, Jeff [Fluor Corporation, Irving, TX (Brazil)

    2009-07-01

    A project that deploys new technologies need to be confident that the technology can be implemented successfully and will perform reliably as designed. New technology is critical to industry, especially where such technology is a project enable without the existence of a backup solution, but also for projects where such technologies bring potential benefits such as technical, economic, schedule, and environmental improvements. DNV developed and has been implementing for many years a systematic, risk based technology qualification process as described in DNV RP-A203, qualification procedures for new technology. One of the major objectives of a formal technology qualification process is to ensure that risks are properly addressed. The DNV process includes several levels of technology qualification and review, starting with a statement of feasibility and concluding with a Certificate of Fitness for Service. Fluor Corporation (Fluor) has developed a new subsea cryogenic pipe-in-pipe configuration for offshore LNG loading and receiving terminals. The configuration uses a highly efficient thermal nano-porous insulation in the annular space between the inner and outer pipes. This material is kept in an ambient pressure environment, which is produced through sealing by metal bulkheads. The bulkheads transfer the contraction induced axial compression load on the inner cryogenic carrier pipe to the external jacket pipe. The resulting pipeline bundle is a structural element, which addresses the thermal contraction and expansion loads without the use of expansion bellows or ultra-low thermal contraction alloys. Fluor has followed the DNV technology qualification process to achieve the defined milestones therein which culminated in DNV issuing a certificate of fitness for service. Particular focus was put on the new aspects of the design. The certificate of fitness for service for the Fluor subsea LNG pipe technology provides project management with the confidence that this

  2. Enhancement of the automatic ultrasonic signal processing system using digital technology

    International Nuclear Information System (INIS)

    Koo, In Soo; Park, H. Y.; Suh, Y. S.; Kim, D. Hoon; Huh, S.; Sung, S. H.; Jang, G. S.; Ryoo, S. G.; Choi, J. H.; Kim, Y. H.; Lee, J. C.; Kim, D. Hyun; Park, H. J.; Kim, Y. C.; Lee, J. P.; Park, C. H.; Kim, M. S.

    1999-12-01

    The objective of this study is to develop the automatic ultrasonic signal processing system which can be used in the inspection equipment to assess the integrity of the reactor vessel by enhancing the performance of the ultrasonic signal processing system. Main activities of this study divided into three categories such as the development of the circuits for generating ultrasonic signal and receiving the signal from the inspection equipment, the development of signal processing algorithm and H/W of the data processing system, and the development of the specification for application programs and system S/W for the analysis and evaluation computer. The results of main activities are as follows 1) the design of the ultrasonic detector and the automatic ultrasonic signal processing system by using the investigation of the state-of-the-art technology in the inside and outside of the country. 2) the development of H/W and S/W of the data processing system based on the results. Especially, the H/W of the data processing system, which have both advantages of digital and analog controls through the real-time digital signal processing, was developed using the DSP which can process the digital signal in the real-time, and was developed not only firmware of the data processing system in order for the peripherals but also the test algorithm of specimen for the calibration. The application programs and the system S/W of the analysis/evaluation computer were developed. Developed equipment was verified by the performance test. Based on developed prototype for the automatic ultrasonic signal processing system, the localization of the overall ultrasonic inspection equipment for nuclear industries would be expected through the further studies of the H/W establishment of real applications, developing the S/W specification of the analysis computer. (author)

  3. A survey of contemporary enterprise storage technologies from a digital forensics perspective

    Directory of Open Access Journals (Sweden)

    Gregory H. Carlton

    2011-09-01

    Full Text Available As the proliferation of digital computational systems continue to expand, increasingly complex technologies emerge, including those regarding large, enterprise-wide, information storage and retrieval systems. Within this study, we examine four contemporary enterprise storage technologies. Our examination of these technologies is presented with an overview of the technological features of each offering and then followed with a discussion of the impact of these technologies on digital forensics methods, particularly regarding forensic data acquisition. We offer a general opinion concerning a recommended data acquisition method when faced with the task of obtaining a forensic image of data contained within these technologies, we discuss limitations of our study, and lastly, we suggest areas in which additional research would benefit the field of digital forensics.

  4. Social media and digital technology use among Indigenous young people in Australia: a literature review

    OpenAIRE

    Rice, Emma S.; Haynes, Emma; Royce, Paul; Thompson, Sandra C.

    2016-01-01

    Introduction The use of social media and digital technologies has grown rapidly in Australia and around the world, including among Indigenous young people who face social disadvantage. Given the potential to use social media for communication, providing information and as part of creating and responding to social change, this paper explores published literature to understand how Indigenous Australian youth use digital technologies and social media, and its positive and negative impacts. Metho...

  5. Addressing the Role of Risk Management and Digital Finance Technology on Financial Inclusion

    OpenAIRE

    Boskov, Tatjana; Drakulevski, Ljubomir

    2017-01-01

    Financial inclusion focuses on population which is “unbanked” to get into the formal financial system. The new patterns of financial inclusion rely on digital technologies, and “fin-tech” continues to revolutionize the nature of provision. Very important fact is that 78% of access on financial services in developing countries involves mobile money. Financial digital technologies improve data transmission, analysis and give the small companies the opportunity to develop low-cost di...

  6. A digital fly-by-wire technology development program using an F-8C test aircraft

    Science.gov (United States)

    Jarvis, C. R.

    1974-01-01

    A digital fly-by-wire flight control system has been installed in an F-8C test airplane and has undergone extensive ground and flight testing as part of an overall program to develop digital fly-by-wire technology. This is the first airplane to fly with a digital fly-by-wire system as its primary means of control and with no mechanical reversion capability. Forty-two test flights were made for a total flight time of 57 hours. Six pilots participated in the evaluation. This paper presents an overview of the digital fly-by-wire program and discusses some of the flight-test results.

  7. [Analysis of medical cost of atlantoaxial disorders in patients receiving innovated treatment technologies].

    Science.gov (United States)

    Wu, Yunxia; Liu, Zhongjun

    2016-01-19

    To explore the effects of innovated technologies and products on improving outcomes and decreasing medical costs by analyzing a total and subtotal medical costs of patients with atlantoaxial disorders. The medical costs of 1 489 patients with atlantoaxial disorders from Peking University Third Hospital from 2005 to 2014, who received innovated technologies and products treatment were retrospectively analyzed and compared.Descriptive analysis and ANOVA were used for statistical analysis, and SPSS 19.0 was used to analyze data. From 2005 to 2014, under the situation of a general increase in medical cost by 327%, the total medical costs were stable for patients who used innovated technologies and products for treatment, fluctuating from 20 851 in 2005 to 20 878 in 2014; however, the cases of operation increased year by year, from 88 in 2005 to 163 in 2014; the average length of stay decreased from 21 in 2005 to 10 in 2014; the total cases of transfusion were 22 from 2005 to 2014; the safety, stability and feasibility of the innovated technologies and products were illustrated through the decrease of average length of stay, the reduction of bleeding and the significance of outcomes. It is illustrated that the innovated technologies and products not only decrease patients' suffering and medical costs but also are safe, stable and feasible.

  8. Digital technology use in ELT classrooms and self-directed learning

    OpenAIRE

    Nehir Sert; Ebru Boynueğri

    2016-01-01

    The digital era is a new challenge for teachers. While children get acquainted with digital technology before the age of six, teachers, who have encountered the digital world at a later time in their lives, struggle with it. Self-directed learning, which is crucial for lifelong learning, can be enhanced by the use of technology within and beyond classroom settings. The aim of this study was to examine the difference between the perceptions of students in low- and high-income groups about thei...

  9. Review and evaluation of technology, equipment, codes and standards for digitization of industrial radiographic film

    International Nuclear Information System (INIS)

    1992-05-01

    This reports contains a review and evaluation of the technology, equipment, and codes and standards related to the digitization of industrial radiographic film. The report presents recommendations and equipment-performance specifications that will allow the digitization of radiographic film from nuclear power plant components in order to produce faithful reproductions of flaw images of interest on the films. Justification for the specifications selected are provided. Performance demonstration tests for the digitization process are required and criteria for such tests is presented. Also several comments related to implementation of the technology are presented and discussed

  10. Technological characteristics of digital video broadcasting: Handheld standard DVB-H

    Directory of Open Access Journals (Sweden)

    Andreja B. Samčović

    2011-07-01

    Full Text Available This paper gives an overview of the Digital Video Broadcasting - Handheld standard DVB-H, as a part of the DVB Project. This standard is based on the previous standard DVB-T, which was developed for the terrestrial digital television. The ways of DVB-H signal transmission are also described. Development of advanced technology enabled the digital video broadcasting over wireless portable terminals. This paper discusses the key technological features of the DVB-H standard, such as: time slicing, forward error correction, 4K mode and in-depth interleavers.

  11. The never-ending digital journey creating new consumer experiences through technology

    CERN Document Server

    Angelani, Andres; Migoya, Martin

    2016-01-01

    The Never-Ending Digital Journey provides readers with the concepts and steps needed to create successful user experiences. The authors look ahead and explore digital scenarios of the future. They probe how technology is changing the way users interact with brands, and they address today's digital challenges with new ways of surprising consumers, integrating design and engineering. The authors leverage knowledge gleaned from working with renowned global companies to describe the recipe needed to build a Digital Journey. With a strong focus on Agile Pods, they dive into technolo- gies, processes, team building, motivation, and met- rics that enable businesses to construct and nurture the dynamic ecosystems necessary in this digital era to foster success. Over the last several years, customers, employees, and partners have become tech-savvy users whose expectations of “Give me more and deliver it faster" require manageable solutions. The desire to interact with digital ecosystems anywhere, anytime demands that...

  12. [Application and prospect of digital technology in the field of orthodontics].

    Science.gov (United States)

    Zhou, Y H

    2016-06-01

    The three-dimensional(3D)digital technology has brought a revolutionary change in diagnostic planning and treatment strategy of orthodontics. Acquisition of 3D image data of the hard and soft tissues of the patients, diagnostic analysis and treatment prediction, and ultimately the individualized orthodontic appliance, will become the development trend and workflow of the 3D orthodontics. With the development of 3D digital technology, the traditional plaster model has been gradually replacing by 3D digital models. Meanwhile, 3D facial soft tissue scan and cone-beam CT scan have been gradually applied to clinical orthodontics, making it possible to get 3D virtual anatomical structure for patients. With the help of digital technology, the diagnostic process is much easier for orthodontist. However how to command the whole digital workflow and put it into practice in the daily work is still a long way to go. The purpose of this article is to enlighten the orthodontists interested in digital technology and discuss the future of digital orthodontics in China.

  13. A Sigma-Delta ADC with Decimation and Gain Control Function for a Bluetooth Receiver in 130 nm Digital CMOS

    Directory of Open Access Journals (Sweden)

    Koh Jinseok

    2006-01-01

    Full Text Available We present a discrete-time second-order multibit sigma-delta ADC that filters and decimates by two the input data samples. At the same time it provides gain control function in its input sampling stage. A 4-tap FIR switched capacitor (SC architecture was chosen for antialiasing filtering. The decimation-by-two function is realized using divided-by-two clock signals in the antialiasing filter. Antialiasing, gain control, and sampling functions are merged in the sampling network using SC techniques. This compact architecture allows operating the preceding blocks at twice the ADC's clock frequency, thus improving the noise performance of the wireless receiver channel and relaxing settling requirements of the analog building blocks. The presented approach has been validated and incorporated in a commercial single-chip Bluetooth radio realized in a 1.5 V 130 nm digital CMOS process. The measured antialiasing filtering shows better than 75 dB suppression at the folding frequency band edge. A 67 dB dynamic range was measured with a sampling frequency of 37.5MHz.

  14. Teaching conceptions of the use of digital technologies as a teaching resource in physical education in public schools of Minas Gerais, Brazil

    Science.gov (United States)

    Voelzke, M. R.; Paganotti, A.; Assis, A. M. M.

    2017-07-01

    Increasingly, digital technologies have been invading classrooms, providing more and more attractive teaching methods for both, students and teachers. The arrival of digital technologies in classrooms brings great advances, but also many uncertainties and insecurities to teachers. With current technologies, the school environment can transform into a meaningful learning ambience with a more active and interactive student. This research aimed to analyze the opinion of eleven teachers who teach in four public schools in the interior of Minas Gerais, about the challenges of using digital technologies at school everyday. The data were obtained from the application of a questionnaire with eight questions. One of those asked about the used of digital technologies in the classroom, ten professors claimed to use them, but in another question that inquired about their knowledge about simulation software for physics teaching, only six said they knew about this resource. When questioned about the lecture on the topic of technological development, only seven teachers stated that they use this technique, being a relatively small number. Out of the four surveyed schools, two had digital slates, but the teachers said they did not use them because they did not receive any training. It was concluded that teachers do not feel comfortable teaching physics using digital technological resources, apparently because they lack adequate training. In many schools either there is no equipment or the same exists, but the teachers did not undergo training to use them. It is noticed that in the XXI century teachers insist on the traditional teaching model, contrary to the current trends to which students are immersed in a digital and interactive technological world.

  15. Digitizing pediatric chest radiographs: comparison of low-cost, commercial off-the-shelf technologies

    International Nuclear Information System (INIS)

    Ruess, L.; Shiels, K.C.; Cho, K.H.; O'Connor, S.C.; Uyehara, C.F.T.; Person, D.A.; Whitton, R.K.

    2001-01-01

    Objective: To compare low-cost, off-the-shelf technology for digitizing pediatric chest radiographs. Materials and methods: Forty pediatric chest radiographs (hard copy), each with a single abnormality, were digitized using a commercial film digitizer and two low-cost methods: a digital camera and a flatbed scanner. A stratified, randomized, block design was used where 20 readers evaluated 40 different images to determine the ability to accurately detect the abnormality. Readers then rated all 160 images (40 images x 4 methods) for conspicuity of the abnormality and overall image quality. Results: Abnormalities were correctly identified on 82.3 % of hard copy images, 82.9 % of flatbed scanner images, 74.3 % of film digitizer images, and 69.7 % of digital camera images (p flatbed scanner > film digitizer > digital camera images. Conclusion: A low-cost flatbed scanner yielded digital pediatric chest images which were significantly superior to digital camera images While flatbed scanner images were interpreted with the equivalent diagnostic accuracy of hard copy images, they were rated lower for image quality and lesion conspicuity. (orig.)

  16. Digitization

    DEFF Research Database (Denmark)

    Finnemann, Niels Ole

    2014-01-01

    what a concept of digital media might add to the understanding of processes of mediatization and what the concept of mediatization might add to the understanding of digital media. It is argued that digital media open an array of new trajectories in human communication, trajectories which were...

  17. Integration of Digital Technologies into Play-Based Pedagogy in Kuwaiti Early Childhood Education: Teachers' Views, Attitudes and Aptitudes

    Science.gov (United States)

    Aldhafeeri, Fayiz; Palaiologou, Ioanna; Folorunsho, Aderonke

    2016-01-01

    Scholars in the field of early childhood education are still debating the inclusion of digital technologies in play-based pedagogy and our understanding of digital play in early childhood education is still developing. This research paper examines early childhood education teachers' views, aptitudes and attitudes towards digital technologies in…

  18. Using information and communication technology (ICT) to the maximum: learning and teaching biology with limited digital technologies

    Science.gov (United States)

    Van Rooy, Wilhelmina S.

    2012-04-01

    Background: The ubiquity, availability and exponential growth of digital information and communication technology (ICT) creates unique opportunities for learning and teaching in the senior secondary school biology curriculum. Digital technologies make it possible for emerging disciplinary knowledge and understanding of biological processes previously too small, large, slow or fast to be taught. Indeed, much of bioscience can now be effectively taught via digital technology, since its representational and symbolic forms are in digital formats. Purpose: This paper is part of a larger Australian study dealing with the technologies and modalities of learning biology in secondary schools. Sample: The classroom practices of three experienced biology teachers, working in a range of NSW secondary schools, are compared and contrasted to illustrate how the challenges of limited technologies are confronted to seamlessly integrate what is available into a number of molecular genetics lessons to enhance student learning. Design and method: The data are qualitative and the analysis is based on video classroom observations and semi-structured teacher interviews. Results: Findings indicate that if professional development opportunities are provided where the pedagogy of learning and teaching of both the relevant biology and its digital representations are available, then teachers see the immediate pedagogic benefit to student learning. In particular, teachers use ICT for challenging genetic concepts despite limited computer hardware and software availability. Conclusion: Experienced teachers incorporate ICT, however limited, in order to improve the quality of student learning.

  19. Communications received from Member States regarding guidelines for the export of nuclear material, equipment and technology

    International Nuclear Information System (INIS)

    1994-04-01

    The Director General has received notes verbales to the export of nuclear material, equipment and technology from the following Permanent Missions to the International Atomic Energy Agency: notes verbales dated 1 March 1994 from the Permanent Missions of Australia, Austria, Belgium, Bulgaria, Canada, the Czech Republic, Denmark, Finland, France, Germany, Hungary, Italy, Japan, the Netherlands, Poland, Portugal, Spain, Sweden, Switzerland, the United Kingdom of Great Britain and Northern Ireland, the United States of America; and a note verbale dated 12 March 1994 from the Permanent Mission of Romania. The purpose of these notes verbales is to provide further information on these Governments' nuclear export policies and practices

  20. Strengthening Inclusion of Learners With Attention Difficulties Through Interventions With Digital Technology In Processes of Production

    DEFF Research Database (Denmark)

    Sorensen, Elsebeth Korsgaard; Voldborg, Hanne

    2017-01-01

    This paper investigates the potential of digital technologies for strengthening the participation and inclusion of learners with developmental and attention deficits (focus learners) into the mainstream classroom. The paper describes the authors’ approach to the challenge of researching the extent......, to which digital technologies may support the learning process of focus learners – in particular in those aspects of the learning process that deal with the construction of learning products and the communication and dissemination of knowledge to peers, teachers or others. On the basis of the actual...... analysis and a succeeding discussion, the paper concludes that in order to create ownership, pedagogic strategies and interventions with digital technologies (whether viewed from the perspective of teaching or the perspective of learning) should incorporate opportunities for developing digital multimodal...

  1. Digital Libraries: The Next Generation in File System Technology.

    Science.gov (United States)

    Bowman, Mic; Camargo, Bill

    1998-01-01

    Examines file sharing within corporations that use wide-area, distributed file systems. Applications and user interactions strongly suggest that the addition of services typically associated with digital libraries (content-based file location, strongly typed objects, representation of complex relationships between documents, and extrinsic…

  2. Documents at hand: learning from paper to improve digital technologies

    NARCIS (Netherlands)

    Bondarenko, O.; Janssen, Ruud; Veer, van der G.C.; Gayle, C.

    2005-01-01

    In this paper the results of a two-year ethnographic study of the personal document management of 28 information workers is described. Both the paper and digital domain were taken into account during the study. The results reaffirmed that document management is strongly related to task management.

  3. An Antenna Diversity Scheme for Digital Front-End with OFDM Technology

    Institute of Scientific and Technical Information of China (English)

    Fa-Long Luol; Ward Williams; Bruce Gladstone

    2011-01-01

    In,this paper, we propose a new antenna diversity scheme for OFDM-based wireless communication and digital broadcasting applications. Compared with existing schemes, such as post-fast Fourier transform (FFT), pre-FFT, and polyphase-based fitter-bank, the proposed scheme performs optimally and has very low computational complexity. It offers a better compromise between performance, power consumption, and complexity in real-time implementation of the receivers of broadband communication and digital broadcasting systems.

  4. Opening Digital Archives and Collections with Emerging Data Analytics Technology: A Research Agenda

    Directory of Open Access Journals (Sweden)

    Ahmed Elragal

    2017-02-01

    Full Text Available In the public sector, the EU legislation requires preservation and opening of increasing amounts of heterogeneous digital information that should be utilized by citizens and businesses. While technologies such as big data analytics (BDA have emerged, opening of digital archives and collections at a large scale is in its infancy. Opening archives and collections involve also particular requirements for recognizing and managing issues of privacy and digital rights. As well, ensuring the sustainability of the opened materials and economical appraisal of digital materials for preservation require robust digital preservation practices. We need to proceed beyond the state-of-the-art in opening digital archives and collections through the means of emerging big data analytics and validating a novel concept for analytics which then enables delivering of knowledge for citizens and the society. We set out an agenda for using BDA as our strategy for research and enquiry and for demonstrating the benefit of BDA for opening digital archives by civil servants and for citizens. That will – eventually - transform the preservation practices, and delivery and use opportunities of public digital archives. Our research agenda suggests a framework integrating four domains of inquiry, analytics-enhanced appraisal, analytics-prepared preservation, analytics-enhanced opening, and analytics-enhanced use, for utilizing the BDA technologies in the domain of digital archives and collections. The suggested framework and research agenda identifies initially particular BDA technologies to be utilized in each of the four domains, and contributes by highlighting a need for an integrated “public understanding of big data” in the domain of digital preservation.

  5. Experimental demonstration of a real-time high-throughput digital DC blocker for compensating ADC imperfections in optical fast-OFDM receivers.

    Science.gov (United States)

    Zhang, Lu; Ouyang, Xing; Shao, Xiaopeng; Zhao, Jian

    2016-06-27

    Performance degradation induced by the DC components at the output of real-time analogue-to-digital converter (ADC) is experimentally investigated for optical fast-OFDM receiver. To compensate this degradation, register transfer level (RTL) circuits for real-time digital DC blocker with 20GS/s throughput are proposed and implemented in field programmable gate array (FPGA). The performance of the proposed real-time digital DC blocker is experimentally investigated in a 15Gb/s optical fast-OFDM system with intensity modulation and direct detection over 40 km standard single-mode fibre. The results show that the fixed-point DC blocker has negligible performance penalty compared to the offline floating point one, and can overcome the error floor of the fast OFDM receiver caused by the DC components from the real-time ADC output.

  6. The Digital Learning Imperative: How Technology and Teaching Meet Today's Education Challenges. Digital Learning Series

    Science.gov (United States)

    Schwartzbeck, Terri Duggan; Wolf, Mary Ann

    2012-01-01

    This report outlines how digital learning can connect middle and high school students with better teaching and learning experiences while also addressing three major challenges facing the nation's education system--access to good teaching, tight budgets, and boosting student achievement. But simply slapping a netbook on top of a textbook will not…

  7. Results of the Ongoing Monitoring of the Position of a Geostationary Telecommunication Satellite by the Method of Spatially Separated Basis Receiving of Digital Satellite Television Signals

    Directory of Open Access Journals (Sweden)

    Bushuev F.

    2016-10-01

    Full Text Available The results of the ongoing monitoring of the position of geostationary telecommunication satellite Eutelsat-13B (13° East are presented in the article. The results were obtained using a radio engineering complex (RC of four stations receiving digital satellite television and a data processing centre. The stations are located in Kyiv, Mukachevo, Kharkiv and Mykolaiv.

  8. Exploring the digital technology preferences of teenagers and young adults (TYA) with cancer and survivors: a cross-sectional service evaluation questionnaire.

    Science.gov (United States)

    Abrol, Esha; Groszmann, Mike; Pitman, Alexandra; Hough, Rachael; Taylor, Rachel M; Aref-Adib, Golnar

    2017-12-01

    Digital technology has the potential to support teenagers and young adults (TYAs) with cancer from the onset of their disease into survivorship. We aimed to establish (1) the current pattern of use of TYA digital technologies within our service-user population, and (2) their preferences regarding digital information and support within the service. A cross-sectional survey was administered as a paper and online self-completed questionnaire to TYAs aged 13-24 accessing outpatient, inpatient, and day care cancer services at a regional specialist centre over a 4-week period. One hundred two TYAs completed the survey (55.7% male; 39.8% female; 83.3% paper; 16.7% online; mean age 18.5 years [SD = 3.51]). Of the TYAs, 41.6% rated the importance of digital communication as "essential" to their lives. Half (51.0%) kept in contact with other patients they had met during treatment, and 12.0% contacted patients they had not met in person. Respondents wanted to receive clinical information online (66.3%) and use online chat rooms (54.3%). Future online services desired included virtual online groups (54.3%), online counselling or psychological support (43.5%), and receiving (66.3%) and sharing (48.9%) clinical information online. Young people with cancer are digital natives. A significant subgroup expressed a desire for digital resources from oncology services, though existing resources are also highly valued. Digital resources have potential to improve patient experience and engagement. There is considerable scope to develop digital resources with which TYAs can receive information and connect with both professionals and fellow patients, following diagnosis, through treatment and survivorship.

  9. Indigenous Language Revitalization, Promotion, and Education: Function of Digital Technology

    Science.gov (United States)

    Galla, Candace Kaleimamoowahinekapu

    2016-01-01

    Within the last two decades, there has been increased interest in how technology supports Indigenous language revitalization and reclamation efforts. This paper considers the effect technology has on Indigenous language learning and teaching, while conceptualizing how language educators, speakers, learners, and technology users holistically…

  10. Digital Dwelling: Technology in Couple and Family Relationships

    Science.gov (United States)

    Hertlein, Katherine M.

    2012-01-01

    We are in an unprecedented age of technology. Few articles in family journals address online behavior, intimacy patterns, and influences on the ways couples and families communicate through technology. The purpose of this article is to use a multitheoretical model to describe the process of how technologies are affecting couple and family life.…

  11. Development of Risk Assessment Technology for Low Power, Shutdown and Digital I and C Systems

    International Nuclear Information System (INIS)

    Jang, Seung Cheol; Kang, Hyung Gook; Lim, Ho Gon; Park, Jin Hee; Eom, Heung Sub; Kim, Tae Woon; Ha, Jae Joo

    2005-04-01

    There are two technical areas to deal with in the project; the low power and shutdown probabilistic safety assessment (PSA), and the digital I and C PSA. The scope and contents of each area could be summarized as follows: Quality assessment of a LPSD PSA model for a Korean Standard Nuclear Power Plant (KSNP), Quality improvement of the KSNP LPSD PSA model in the following four technical areas; plant operating status (POS), initiating event analysis, determination of success criteria, accident sequence analysis, Development of the LPSD risk management technologies, Unavailability analysis of Digital safety systems such as Digital Plant Protection System (DPPS) and Digital Engineered Safety Feature Actuation System (DESFAS), Impact analysis of the digital safety systems on plant risks throughout of the digital plant risk models for evaluating core damage frequency (CDF) and large early release frequency (LERF), Study on the methodologies for treating digital-specific problems in the digital I and C PSA such as reliability of safety-critical software, common cause failure (CCF) of digital components, fault coverage, etc

  12. Development of Risk Assessment Technology for Low Power, Shutdown and Digital I and C Systems

    Energy Technology Data Exchange (ETDEWEB)

    Jang, Seung Cheol; Kang, Hyung Gook; Lim, Ho Gon; Park, Jin Hee; Eom, Heung Sub; Kim, Tae Woon; Ha, Jae Joo

    2005-04-15

    There are two technical areas to deal with in the project; the low power and shutdown probabilistic safety assessment (PSA), and the digital I and C PSA. The scope and contents of each area could be summarized as follows: Quality assessment of a LPSD PSA model for a Korean Standard Nuclear Power Plant (KSNP), Quality improvement of the KSNP LPSD PSA model in the following four technical areas; plant operating status (POS), initiating event analysis, determination of success criteria, accident sequence analysis, Development of the LPSD risk management technologies, Unavailability analysis of Digital safety systems such as Digital Plant Protection System (DPPS) and Digital Engineered Safety Feature Actuation System (DESFAS), Impact analysis of the digital safety systems on plant risks throughout of the digital plant risk models for evaluating core damage frequency (CDF) and large early release frequency (LERF), Study on the methodologies for treating digital-specific problems in the digital I and C PSA such as reliability of safety-critical software, common cause failure (CCF) of digital components, fault coverage, etc.

  13. Digital Libraries with Embedded Values: Combining Insights from LIS and Science and Technology Studies

    Science.gov (United States)

    Fleischmann, Kenneth R.

    2007-01-01

    In the digital age, libraries are increasingly being augmented or even replaced by information technology (IT), which is often accompanied by implicit assumptions of objectivity and neutrality, yet the field of science and technology studies (STS) has a long history of studying what values are embedded in IT and how they are embedded. This article…

  14. The Sociology of Education and Digital Technology: Past, Present and Future

    Science.gov (United States)

    Selwyn, Neil; Facer, Keri

    2014-01-01

    During the past 15 years of his career, John Furlong's research and writing has focused--in part--on digital technologies and people's everyday experiences of education. While hardly a technology expert, his work has shown an acute awareness of the significance of computers, the internet and mobile telephony in making sociological sense…

  15. Children Learning to Use Technologies through Play: A Digital Play Framework

    Science.gov (United States)

    Bird, Jo; Edwards, Susan

    2015-01-01

    Digital technologies are increasingly acknowledged as an important aspect of early childhood education. A significant problem for early childhood education has been how to understand the pedagogical use of technologies in a sector that values play-based learning. This paper presents a new framework to understand how children learn to use…

  16. 5 Myths about Classroom Technology: How Do We Integrate Digital Tools to Truly Enhance Learning?

    Science.gov (United States)

    Renwick, Matt

    2015-01-01

    What's keeping your school behind the technology curve? Is it a fear of the unfamiliar? Expenses? Or some other myth? Have you considered how students with special needs or students learning a second language may benefit from using digital tools? If you've fallen for the perception that technology is too expensive, unnecessary for real learning,…

  17. Mitigation and Adaptation: Critical Perspectives toward Digital Technologies in Place-Conscious Environmental Education

    Science.gov (United States)

    Greenwood, David A.; Hougham, R. Justin

    2015-01-01

    This paper explores the tension for educators between the proliferation of mobile, digital technologies, and the widely held belief that environmental learning is best nurtured through place-based approaches that emphasize direct experience. We begin by offering a general critique of technology in culture and education, emphasizing what is at…

  18. Re-Imagining the Nature of (Student-Focused) Learning through Digital Technology

    Science.gov (United States)

    Hood, Nina

    2018-01-01

    Digital technology is frequently positioned as being central to the establishment of a 'future focused' education system that provides high quality student-focused learning opportunities and re-envisioned educational outcomes. While recognising the potential of technology, this paper explores some of the questions about its role in education and…

  19. Bridging Natural and Digital Domains: Attitudes, Confidence, and Interest in Using Technology to Learn Outdoors

    Science.gov (United States)

    Hougham, R. Justin; Nutter, Marc; Graham, Caitlin

    2018-01-01

    Background: The current study, Project EARPOD (Engaging At-Risk Populations Outdoors, Digitally), addressed two questions: First, does the use of technology in environmental education detract from students' experiences outdoors? Second, can these technological interventions be expanded to provide access to students and schools across the…

  20. Passport to Digital Citizenship: Journey toward Appropriate Technology Use at School and at Home

    Science.gov (United States)

    Ribble, Mike

    2009-01-01

    Technology has changed people's lives. In fewer than 30 years, people have gone from barely hearing about cell phones, laptops, and MP3 players to almost not being able to live without them. Digital citizenship describes the norms of appropriate, responsible behavior with regard to technology use. In this article, the author presents nine elements…

  1. The Use of Digital Technologies in the Classroom: A Teaching and Learning Perspective

    Science.gov (United States)

    Buzzard, Christopher; Crittenden, Victoria L.; Crittenden, William F.; McCarty, Paulette

    2011-01-01

    Today's college students, often referred to as the "digital generation," use an impressive assortment of technological tools in a wide variety of ways. However, the findings reported here suggest that students prefer more traditional instructional technology for effective engagement and learning. Faculty members, however, prefer the use of…

  2. Developing digital technologies for university mathematics by applying participatory design methods

    DEFF Research Database (Denmark)

    Triantafyllou, Eva; Timcenko, Olga

    2013-01-01

    This paper presents our research efforts to develop digital technologies for undergraduate university mathematics. We employ participatory design methods in order to involve teachers and students in the design of such technologies. The results of the first round of our design are included...

  3. Innovating Education and Educating for Innovation: The Power of Digital Technologies and Skills

    Science.gov (United States)

    OECD Publishing, 2016

    2016-01-01

    OECD's Innovation Strategy calls upon all sectors in the economy and society to innovate in order to foster productivity, growth and well-being. Education systems are critically important for innovation through the development of skills that nurture new ideas and technologies. However, whereas digital technologies are profoundly changing the way…

  4. Heidegger, Digital Technology, and Postmodern Education: From Being in Cyberspace to Meeting on MySpace

    Science.gov (United States)

    Walters, Patrick; Kop, Rita

    2009-01-01

    Digital technology is transforming life and is beginning to have a profound effect on individual psychic life and the wider social milieu. This article seeks to understand the nature of the new technology and its implications for personal life, culture, and education. The scene is set by comparing the introduction of printing to the revolution…

  5. Digital Disturbances, Disorders, and Pathologies: A Discussion of Some Unintended Consequences of Technology in Higher Education

    Science.gov (United States)

    Haughton, Noela A.; Yeh, Kuo-Chuan; Nworie, John; Romero, Liz

    2013-01-01

    As with any innovation, the adoption and diffusion of digital technologies in higher education have also brought unintended consequences. This article discusses the unintended misuse of these technologies in the higher education setting. Depending upon severity, these consequences discussed--distraction, addiction, academic dishonesty, and…

  6. Using/designing Digital Technologies Of Representation In Aboriginal Australian Knowledge Practices

    Directory of Open Access Journals (Sweden)

    Helen Verran

    2007-01-01

    Full Text Available Indigenous Australians are often keen to use digital technologies in their struggle to develop sustainable livelihoods on their own lands. This paper tells of gradually coming to recognize how an Aboriginal Australian elder struggled against the grain of digital technologies designed to represent, in using them in Aboriginal Australian knowledge practices where knowledge is always actively performative rather than representional. The performance of Aboriginal knowledge must express the remaking of an ancestral reality. At the same time, this man exploited possibilities the technologies offered for representation in achieving political ends in dealing with representatives of mainstream Australia.

  7. [Ten years retrospective review of the application of digital medical technology in general surgery in China].

    Science.gov (United States)

    Fang, C H; Lau, Y Y; Zhou, W P; Cai, W

    2017-12-01

    Digital medical technology is a powerful tool which has forcefully promoted the development of general surgery in China. In this article, we reviews the application status of three-dimensional visualization and three-dimensional printing technology in general surgery, introduces the development situation of surgical navigation guided by optical and electromagnetic technology and preliminary attempt to combined with mixed reality applied to complicated hepatectomy, looks ahead the development direction of digital medicine in the era of artificial intelligence and big data on behalf of surgical robot and radiomics. Surgeons should proactively master these advanced techniques and accelerate the innovative development of general surgery in China.

  8. The contributions of digital technologies in the teaching of nursing skills: an integrative review.

    Science.gov (United States)

    Silveira, Maurício de Souza; Cogo, Ana Luísa Petersen

    2017-07-13

    To analyze the contributions of digital educational technologies used in teaching nursing skills. Integrative literature review, search in five databases, from 2006 to 2015 combining the descriptors 'education, nursing', 'educational technology', 'computer-assisted instruction' or related terms in English. Sample of 30 articles grouped in the thematic categories 'technology in the simulation with manikin', 'incentive to learning' and 'teaching of nursing skills'. It was identified different formats of digital educational technologies used in teaching Nursing skills such as videos, learning management system, applications, hypertext, games, virtual reality simulators. These digital materials collaborated in the acquisition of theoretical references that subsidize the practices, enhancing the teaching and enable the use of active learning methods, breaking with the traditional teaching of demonstrating and repeating procedures.

  9. Interest in Use of Technology for Healthcare Among Veterans Receiving Treatment for Mental Health.

    Science.gov (United States)

    Miller, Christopher J; McInnes, D Keith; Stolzmann, Kelly; Bauer, Mark S

    2016-10-01

    There is great interest in leveraging technology, including cell phones and computers, to improve healthcare. A range of e-health applications pertaining to mental health such as messaging for prescription refill or mobile device videoconferencing are becoming more available, but little is known about the mental health patient's interest in using these newer applications. We mailed a survey to 300 patients seen in the general mental health clinic of a local Veterans Affairs Medical Center. Survey questions focused on interest in use of cell phones, tablets, and other computers in patients' interactions with the healthcare system. A total of 74 patients, primarily treated for depression, post-traumatic stress disorder, or anxiety disorders, returned completed surveys. Nearly all reported having a cell phone (72/74, 97%), but fewer than half reported having a smartphone (35/74, 47%). Overall, a substantial majority (64/74, 86%) had access to an Internet-capable device (smartphone or computer, including tablets). Respondents appeared to prefer computers to cell phones for some health-related communications, but did not express differential interest for other tasks (such as receiving appointment reminders). Interest in use was higher among younger veterans. Most veterans with a mental health diagnosis have access to technology (including cell phones and computers) and are interested in using that technology for some types of healthcare-related communications. While there is capacity to utilize information technology for healthcare purposes in this population, interests vary widely, and a substantial minority does not have access to relevant devices. Although interest in using computers for health-related communication was higher than interest in using cell phones, single-platform technology-based interventions may nonetheless exclude crucial segments of the population.

  10. New technologies for radiation-hardening analog to digital converters

    Science.gov (United States)

    Gauthier, M. K.

    1982-01-01

    Surveys of available Analog to Digital Converters (ADC) suitable for precision applications showed that none have the proper combination of accuracy and radiation hardness to meet space and/or strategic weapon requirements. A development program which will result in an ADC device which will serve a number of space and strategic applications. Emphasis was placed on approaches that could be integrated onto a single chip within three to five years.

  11. New technologies for radiation-hardening analog to digital converters

    International Nuclear Information System (INIS)

    Gauthier, M.K.

    1982-12-01

    Surveys of available Analog to Digital Converters (ADC) suitable for precision applications showed that none have the proper combination of accuracy and radiation hardness to meet space and/or strategic weapon requirements. A development program which will result in an ADC device which will serve a number of space and strategic applications. Emphasis was placed on approaches that could be integrated onto a single chip within three to five years

  12. Understanding Digital Technology Access and Use Among New York State Residents to Enhance Dissemination of Health Information.

    Science.gov (United States)

    Manganello, Jennifer A; Gerstner, Gena; Pergolino, Kristen; Graham, Yvonne; Strogatz, David

    2016-01-01

    Many state and local health departments, as well as community organizations, have been using new technologies to disseminate health information to targeted populations. Yet little data exist that show access and use patterns, as well as preferences for receiving health information, at the state level. This study was designed to obtain information about media and technology use, and health information seeking patterns, from a sample of New York State (NYS) residents. A cross-sectional telephone survey (with mobile phones and landlines) was developed to assess media and technology access, use patterns, and preferences for receiving health information among a sample of 1350 residents in NYS. The survey used random digit dialing methodology. A weighted analysis was conducted utilizing Stata/SE software. Data suggest that NYS residents have a high level of computer and Internet use; 82% have at least one working computer at home, and 85% use the Internet at least sometimes. Mobile phone use is also high; 90% indicated having a mobile phone, and of those 63% have a smartphone. When asked about preferences for receiving health information from an organization, many people preferred websites (49%); preferences for other sources varied by demographic characteristics. Findings suggest that the Internet and other technologies are viable ways to reach NYS residents, but agencies and organizations should still consider using traditional methods of communication in some cases, and determine appropriate channels based on the population of interest.

  13. Dismantling and waste managing benefit from digital technologies

    International Nuclear Information System (INIS)

    Moitrier, C.

    2017-01-01

    Dismantling is a very important challenge for nuclear industry as its success will prove the ability of the industry to deal with all the stages of a nuclear power plant from design to the end. A dismantling project is constraint by costs, time, feasibility, safety and environment protection and all of this implies a perfect knowledge of both the initial state of the facility at the beginning of the dismantling and the supply chain to avoid delays and extra-costs. Digital tools have a very important role to play as a provider of a 3-dimensional digital twin of the facility. This digital model allows: a remote preparation of the dismantling actions, to assess and optimize the radiation exposure during the intervention, to simulate various scenarios and select the most adequate, to ease collaborative work between various teams, to assess the volume and kind of waste at a very early stage of the dismantling, and to train operators and workers for x. (A.C.)

  14. Italian University Students and Digital Technologies: Some Results from a Field Research

    Science.gov (United States)

    Ferri, Paolo; Cavalli, Nicola; Costa, Elisabetta; Mangiatordi, Andrea; Mizzella, Stefano; Pozzali, Andrea; Scenini, Francesca

    Developments in information and communication technologies have raised the issue of how a kind of intergenerational digital divide can take place between "digital natives" and "digital immigrants". This can in turn have important consequences for the organization of educative systems. In this paper we present the result of a research performed during the course of 2008 to study how university students in Italy make use of digital technologies. The methodology was based on a mix of quantitative and qualitative approaches. A survey research was done, on a sample of 1186 students of the University of Milan-Bicocca, based on a questionnaire administrated through the Intranet of the University. A series of focus groups and in depth interviews with students, parents, and new media experts was furthermore performed. The results are consistent with the presence of a strong intergenerational divide. The implications of the results for the future organization of educative systems are discussed in the paper.

  15. Application of digital PWM technology in current transducers

    International Nuclear Information System (INIS)

    Liu Huifang; Hu Zhimin; Li Rui

    2012-01-01

    With the development of DSP technology and mature use of PID technology,, a new program for DC or AC signal measurement is proposed. Combined with the DSP chip timer module and PID algorithm, PWM signals are generated to control the feedback circuit for the compensation current. Finally the measured current value can be obtained according to the ampere-turns compensation current and the measured current. Studies have shown that this technology enables new current transducers have high stability. (authors)

  16. Blockchain for good? Digital ledger technology and sustainable development goals

    OpenAIRE

    Adams, R.; Kewell, B.; Parry, G.

    2017-01-01

    Blockchain technology (aka Distributed Ledger Technology or DLT) is a novel configuration of Peer-to-Peer, cryptographic and distributed computing technologies that have the potential to shift the internet from an internet of information to an internet of value network, with significant disruptive potential. To date, the cryptocurrency ‘bitcoin’ is the application of DLT that has attracted most attention, not all of it favourable. However, DLTs are about much more than cryptocurrencies and, a...

  17. Young children (0-8) and digital technology - EU report

    OpenAIRE

    Chaudron, Stéphane; Plowman, Lydia; Beutel, M.E; Černikova, Martina; Donoso Navarette, Veronica; Dreier, Michael; Fletcher-Watson, Ben; Heikkilä, Anni-Sofia; Kontríková, Věra; Korkeamäki, Riitta-Liisa; Livingstone, Sonia; Marsh, Jackie; Mascheroni, Giovanna; Micheli, Marina; Milesi, Daniele

    2015-01-01

    Despite the growing number of very young children who go online and who are using a wide range of technologies, little is known about children’s interactions with those technologies. This report presents a pilot qualitative study designed and implemented in collaboration with a selected group of academic partners in different European countries that aims at pioneering in Europe the exploration of young children and their families` experiences with new technologies. It resents its results and ...

  18. From Mediatized Emotion to Digital Affect Cultures: New Technologies and Global Flows of Emotion

    OpenAIRE

    Katrin Döveling; Anu A. Harju; Denise Sommer

    2018-01-01

    Research on the processes of mediatization aims to explore the mutual shaping of media and social life and how new media technologies influence and infiltrate social practices and cultural life. We extend this discussion of media’s role in transforming the everyday by including in the discussion the mediatization of emotion and discuss what we conceptualize as digital affect culture(s). We understand these as relational, contextual, globally emergent spaces in the digital environment where af...

  19. Digital technologies in support of flood resilience: A case study for Nepal

    OpenAIRE

    Liu, W.; McCallum, I.; See, L.; Dugar, S.; Laso-Bayas, J.C.

    2016-01-01

    This paper presents ongoing efforts to support flood resilience in the Karnali basin in Nepal through the provision of different forms of digital technology. Flood Risk Geo-Wiki is an online visualization and crowdsourcing tool, which has been adapted to display flood risk maps at the global scale as well as information of relevance to planners and the community at the local level. Community-based flood risk maps, which have traditionally been drawn on paper, are being digitized and integrate...

  20. Nagging, Noobs and New Tricks--Students' Perceptions of School as a Context for Digital Technology Use

    Science.gov (United States)

    Bulfin, Scott; Johnson, Nicola; Nemorin, Selena; Selwyn, Neil

    2016-01-01

    While digital technology is an integral feature of contemporary education, schools are often presumed to constrain and compromise students' uses of technology. This paper investigates students' experiences of school as a context for digital technology use. Drawing upon survey data from three Australian secondary schools (n = 1174), this paper…

  1. The Relationship of Health Literacy With Use of Digital Technology for Health Information: Implications for Public Health Practice.

    Science.gov (United States)

    Manganello, Jennifer; Gerstner, Gena; Pergolino, Kristen; Graham, Yvonne; Falisi, Angela; Strogatz, David

    An understanding of the association of health literacy with patterns related to access and usage of digital technologies and preferences for sources of health information is necessary for public health agencies and organizations to appropriately target channels for health information dissemination. A cross-sectional telephone survey was conducted in New York State. Health literacy was assessed using the Morris Single-Item Screener, a self-report question. A weighted analysis was conducted utilizing Stata/SE. The final sample size of New York State residents used for analysis was 1350. In general, self-report health literacy did not predict digital technology use (ie, Internet and smartphone use, text messaging) but was associated with certain digital activities. People with low self-report health literacy were less likely to use search engines (P = .026) but more likely to get health information from social networking sites (P = .002) and use health-related phone apps (P = .046). With respect to health information seeking, those with lower self-report health literacy reported greater difficulty with their most recent search for health information. Furthermore, they were more likely to prefer text messages (P = .013) and radio (P = .022), 2 text-limited communication channels, to receive health information than those with higher self-report health literacy. While self-report health literacy does not appear to influence access to and use of digital technologies, there is a strong association with experiences searching for health information and preferences for health information sources. Public health agencies and organizations should consider the needs and preferences of people with low health literacy when determining channels for health information dissemination. They should also consider implementing interventions to develop health information-seeking skills in populations they serve and prepare information and materials that are easily accessible and

  2. New Technology's Surprising Security Threats. Building Digital Libraries

    Science.gov (United States)

    Huwe, Terence

    2005-01-01

    In recent years, security issues have increasingly come to dominate the technological development process--although still in a more reactive than proactive mode. It now seems more important than ever to monitor security trends and policy developments, especially if technology is regarded as a potential community builder. This article suggests…

  3. Digital immigrants teaching digital natives: A phenomenological study of higher education faculty perspectives on technology integration with English core content

    Science.gov (United States)

    Corey, Robert C.

    In the last two decades, technology use has escalated and educators grapple with its advances and integration into the classroom. Issues surrounding what constitutes a literate society, the clarion calls for educational reform emanating from US presidents to parent teacher organizations, and educators' ability to cope with advances in technology in the classroom demand attention. Therefore, the purpose of this qualitative study was to explore and understand the professional and educational experiences of six English faculty members teaching undergraduate courses at Midwest universities. Using the framework of Technological Pedagogical Content Knowledge -- TPACK (Koehler and Mishra 2008), the major focus of the study was to determine how faculty members understood what characterized the nature of teaching with technology in undergraduate classrooms. Results of this study revealed five themes showing how the participants were introduced to technology, how they assimilated it into their pedagogy, and how they integrated it into teaching practice. This study has the potential to impact the nature of illustrating the methods and techniques used by the six participants as they merge technology, pedagogy, and content knowledge and set in motion classroom practices that assist faculty at all levels to develop and teach technology skills necessary for the 21st century and to better prepare students for thinking critically about how to use digital advances.

  4. Experimental demonstration of adaptive digital monitoring and compensation of chromatic dispersion for coherent DP-QPSK receiver

    DEFF Research Database (Denmark)

    Borkowski, Robert; Zhang, Xu; Zibar, Darko

    2011-01-01

    We experimentally demonstrate a digital signal processing (DSP)-based optical performance monitoring (OPM) algorithm for inservice monitoring of chromatic dispersion (CD) in coherent transport networks. Dispersion accumulated in 40 Gbit/s QPSK signal after 80 km of fiber transmission is successfu...... drives an adaptive digital CD equalizer. © 2011 Optical Society of America.......We experimentally demonstrate a digital signal processing (DSP)-based optical performance monitoring (OPM) algorithm for inservice monitoring of chromatic dispersion (CD) in coherent transport networks. Dispersion accumulated in 40 Gbit/s QPSK signal after 80 km of fiber transmission...

  5. Population health-based approaches to utilizing digital technology: a strategy for equity.

    Science.gov (United States)

    Graham, Garth N; Ostrowski, MaryLynn; Sabina, Alyse B

    2016-11-01

    Health care disparities and high chronic disease rates burden many communities and disproportionally impact racial/ethnic populations in the United States. These disparities vary geographically, increase health care expenses, and result in shortened lifespans. Digital technologies may be one tool for addressing health disparities and improving population health by increasing individuals' access to health information-especially as most low-income U.S. residents gain access to smartphones. The Aetna Foundation partners with organizations to use digital technologies, including mobile applications, data collection, and related platforms, for learning and sharing. Projects range from the broad-childhood education, lifestyle modification, health IT training, and nutrition education, to the specific-local healthy foods, stroke rehabilitation, and collection of city-level data. We describe our approaches to grantmaking and discuss lessons learned and their implications. When combined with sound policy strategies, emerging, scalable, digital technologies will likely become powerful allies for improving health and reducing health disparities.

  6. Digital Technologies Supporting Person-Centered Integrated Care – A Perspective

    Science.gov (United States)

    2017-01-01

    Shared electronic health and social care records in some service systems are already showing some of the benefits of digital technology and digital data for integrating health and social care. These records are one example of the beginning “digitalisation” of services that gives a glimpse of the potential of digital technology and systems for building coordinated and individualized integrated care. Yet the promise has been greater than the benefits, and progress has been slow compared to other industries. This paper describes for non-technical readers how information technology was used to support integrated care schemes in six EU services, and suggests practical ways forward to use the new opportunities to build person-centered integrated care. PMID:29588629

  7. Digital Technologies Supporting Person-Centered Integrated Care – A Perspective

    Directory of Open Access Journals (Sweden)

    John Øvretveit

    2017-09-01

    Full Text Available Shared electronic health and social care records in some service systems are already showing some of the benefits of digital technology and digital data for integrating health and social care. These records are one example of the beginning “digitalisation” of services that gives a glimpse of the potential of digital technology and systems for building coordinated and individualized integrated care. Yet the promise has been greater than the benefits, and progress has been slow compared to other industries. This paper describes for non-technical readers how information technology was used to support integrated care schemes in six EU services, and suggests practical ways forward to use the new opportunities to build person-centered integrated care.

  8. Analysis of several digital network technologies for hard real-time communications in nuclear plant

    International Nuclear Information System (INIS)

    Song, Ki Sang; No, Hee Chun

    1999-01-01

    Applying digital network technology for advanced nuclear plant requires deterministic communication for tight safety requirements, timely and reliable data delivery for operation critical and mission-critical characteristics of nuclear plant. Communication protocols, such as IEEE 802/4 Tiken Bus, IEEE 802/5 Token Ring, FDDI, and ARCnet, which have deterministic communication capability are partially applied to several nuclear power plants. Although digital communication technologies have many advantages, it is necessary to consider the noise immunity form electromagnetic interference (EMI), electrical interference, impulse noise, and heat noise before selecting specific digital network technology for nuclear plant. In this paper, we consider the token frame loss and data frame loss rate due to the link error event, frame size, and link data rate in different protocols, and evaluate the possibility of failure to meet the hard real-time requirement in nuclear plant. (author). 11 refs., 3 figs., 4 tabs

  9. Droplet digital PCR technology promises new applications and research areas.

    Science.gov (United States)

    Manoj, P

    2016-01-01

    Digital Polymerase Chain Reaction (dPCR) is used to quantify nucleic acids and its applications are in the detection and precise quantification of low-level pathogens, rare genetic sequences, quantification of copy number variants, rare mutations and in relative gene expressions. Here the PCR is performed in large number of reaction chambers or partitions and the reaction is carried out in each partition individually. This separation allows a more reliable collection and sensitive measurement of nucleic acid. Results are calculated by counting amplified target sequence (positive droplets) and the number of partitions in which there is no amplification (negative droplets). The mean number of target sequences was calculated by Poisson Algorithm. Poisson correction compensates the presence of more than one copy of target gene in any droplets. The method provides information with accuracy and precision which is highly reproducible and less susceptible to inhibitors than qPCR. It has been demonstrated in studying variations in gene sequences, such as copy number variants and point mutations, distinguishing differences between expression of nearly identical alleles, assessment of clinically relevant genetic variations and it is routinely used for clonal amplification of samples for NGS methods. dPCR enables more reliable predictors of tumor status and patient prognosis by absolute quantitation using reference normalizations. Rare mitochondrial DNA deletions associated with a range of diseases and disorders as well as aging can be accurately detected with droplet digital PCR.

  10. Exploring How Usage-Focused Business Models Enable Circular Economy through Digital Technologies

    Directory of Open Access Journals (Sweden)

    Gianmarco Bressanelli

    2018-02-01

    Full Text Available Recent studies advocate that digital technologies are key enabling factors for the introduction of servitized business models. At the same time, these technologies support the implementation of the circular economy (CE paradigm into businesses. Despite this general agreement, the literature still overlooks how digital technologies enable such a CE transition. To fill the gap, this paper develops a conceptual framework, based on the literature and a case study of a company implementing a usage-focused servitized business model in the household appliance industry. This study focuses on the Internet of Things (IoT, Big Data, and analytics, and identifies eight specific functionalities enabled by such technologies (improving product design, attracting target customers, monitoring and tracking product activity, providing technical support, providing preventive and predictive maintenance, optimizing the product usage, upgrading the product, enhancing renovation and end-of-life activities. By investigating how these functionalities affect three CE value drivers (increasing resource efficiency, extending lifespan, and closing the loop, the conceptual framework developed in this paper advances knowledge about the role of digital technologies as an enabler of the CE within usage-focused business models. Finally, this study shows how digital technologies help overcome the drawback of usage-focused business models for the adoption of CE pointed out by previous literature.

  11. Application of digital pattern-less molding technology to produce art casting

    Directory of Open Access Journals (Sweden)

    Chen Li1

    2014-11-01

    Full Text Available Compared with the conventional casting process, digital pattern-less casting technology has many advantages such as good machining accuracy, a short processing cycle, and low production cost. It is a new rapid manufacturing technology for castings, integrated with CAD/CAM, casting, CNC machining and many other advanced technologies. With this digital casting technology, no pattern is needed for making molds; it is precise, flexible, and green. Usually, art castings have complex structures and are made in small batches or even made in a single-piece, especially for large-sized art castings. So it has the shortcomings of high cost, low efficiency and long time for making a pattern to produce art castings with the conventional casting processes. However, the digital pattern-less casting technology can be applied to fabricate art castings, since it can greatly shorten the manufacturing cycle and lower the production cost, thus having a very good prospect. In this study, based on the digital pattern-less casting technology, a plaque casting with artistic Chinese characters (a Chinese poem was designed and manufactured, and the production process was demonstrated in detail.

  12. A Digital Archives Framework for the Preservation of Cultural Artifacts with Technological Components

    Directory of Open Access Journals (Sweden)

    Guillaume Boutard

    2013-06-01

    Full Text Available The preservation of artistic works with technological components, such as musical works, is recognised as an issue by both the artistic community and the archival community. Preserving such works involves tackling the difficulties associated with digital information in general, but also raises its own specific problems, such as constantly evolving digital instruments embodied within software and idiosyncratic human-computer interactions. Because of these issues, standards in place for archiving digital information are not always suitable for the preservation of these works. The impact on the organisation and the descriptions of such archives need to be conceptualised in order to provide these technological components with readability, authenticity and intelligibility. While previous projects emphasized readability and authenticity, less effort has been dedicated to addressing intelligibility issues.The research into the specification of significant properties and its extension, namely significant knowledge, offers some grounds for reflecting on this question. Furthermore, the relevance of taking into account the creative process involved in the production of technological components offers an opportunity to redefine the status of technological agents in the performative aspect of digital records. Altogether, the research on significant knowledge and creative processes provide us with a conceptual framework that we propose to bring together with digital archives models to form a coherent framework.

  13. Science Notebooks for the 21st Century. Going Digital Provides Opportunities to Learn "with" Technology Rather than "from" Technology

    Science.gov (United States)

    Fulton, Lori; Paek, Seungoh; Taoka, Mari

    2017-01-01

    Students of today are digital natives who for the most part come to school with experiences that may surpass those of their teachers. They use tablet computers and other devices in their personal lives and are eager to use them in the classroom. For teachers, this means they must integrate technology in ways that allow their students to learn with…

  14. Communications received from certain Member States regarding guidelines for the export of nuclear material, equipment or technology

    International Nuclear Information System (INIS)

    1988-11-01

    The document reproduces the text of a Note Verbale dated 20 October 1988 received by the IAEA Director General from the Permanent Mission of Spain relating to the export of nuclear material, equipment or technology

  15. Communications received from certain Member States regarding guidelines for the export of nuclear material, equipment or technology

    International Nuclear Information System (INIS)

    1990-08-01

    The document reproduces the text of the Note Verbale dated 1 August 1990 received by the Director General of the IAEA from the Permanent Mission of Romania and relating to the export of nuclear material, equipment and technology

  16. Communications received from certain Member States regarding guidelines for the export of nuclear material, equipment and technology

    International Nuclear Information System (INIS)

    1992-01-01

    The document reproduces the text of the Note Verbale dated 18 December 1991 received by the Director General of the IAEA from the Permanent Mission of Austria and relating to the export of nuclear material, equipment and technology

  17. Experimental demonstration of a format-flexible single-carrier coherent receiver using data-aided digital signal processing.

    Science.gov (United States)

    Elschner, Robert; Frey, Felix; Meuer, Christian; Fischer, Johannes Karl; Alreesh, Saleem; Schmidt-Langhorst, Carsten; Molle, Lutz; Tanimura, Takahito; Schubert, Colja

    2012-12-17

    We experimentally demonstrate the use of data-aided digital signal processing for format-flexible coherent reception of different 28-GBd PDM and 4D modulated signals in WDM transmission experiments over up to 7680 km SSMF by using the same resource-efficient digital signal processing algorithms for the equalization of all formats. Stable and regular performance in the nonlinear transmission regime is confirmed.

  18. The investigation of science teachers’ experience in integrating digital technology into science teaching

    Science.gov (United States)

    Agustin, R. R.; Liliasari; Sinaga, P.; Rochintaniawati, D.

    2018-05-01

    The use of technology into science learning encounters problems. One of the problem is teachers’ less technological pedagogical and content knowledge (TPACK) on the implementation of technology itself. The purpose of this study was to investigate science teachers’ experience in using digital technology into science classroom. Through this study science teachers’ technological knowledge (TK) and technological content knowledge (TCK) can be unpacked. Descriptive method was used to depict science teachers’ TK and TCK through questionnaire that consisted of 20 questions. Subjects of this study were 25 science teachers in Bandung, Indonesia. The study was conducted in the context of teacher professional training. Result shows that science teachers still have less TK, yet they have high TCK. The teachers consider characteristics of concepts as main aspect for implementing technology into science teaching. This finding describes teachers’ high technological content knowledge. Meanwhile, science teachers’ technological knowledge was found to be still low since only few of them who can exemplify digital technology that can be implemented into several science concept. Therefore, training about technology implementation into science teaching and learning is necessary as a means to improve teachers’ technological knowledge.

  19. Emerging digital technologies come into the University: AR and VR

    Directory of Open Access Journals (Sweden)

    Julio Cabero Almenara

    2018-02-01

    Full Text Available A set of emerging technologies have been approaching university education in the last decade as it had not happened in previous times. Many of these technologies can be considered as disruptive, since they are transforming and improving the training scenarios. Among the technologies that are taking greater momentum and importance we find augmented reality and virtual reality, as evidenced by various reports Horizon and Edutrens. Although the research on the integration of these technologies is in an early stage, we can affirm that those carried out so far demonstrate the great benefits they incorporate into the teaching-learning process. Among these contributions we can highlight the improvement of the motivation, the satisfaction and the performance of the students. In this article we will cover the current state of the University regarding ICT integration, focusing on the technologies that have been bursting with greater force in recent times. In addition, we will focus on two of the technologies “augmented reality and virtual reality” that are experiencing more impact in recent years, showing evidences and mentioning their implementation in the university environment.

  20. Gains from resistance: contesting a new digital technology in a service sector workplace

    DEFF Research Database (Denmark)

    Shulzhenko, Elena; Holmgren, Jens

    2017-01-01

    Increasing expectations of efficiency enabled by new digital technology have led to renewed interest in spaces remaining for employee resistance to management power. The study contributes to this debate by analysing resistance to a new technology introduced in the home-nursing sector in Denmark....... Nurses succeeded in halting a technological change that allowed them to report data related to their visits online from inside patients’ homes and reduced their co-located working time. Work location became a central area of contestation between nurses and management. The study offers a nuanced analysis...... of power relations during the technological change. It shows that the capacity of IT management – a management actor uninhibited by a care ethos - to influence nursing workplaces rose along with the increasing significance of expertise in digital technologies in performing care work. Nurses’ alliances...

  1. Development of the Licensing Support Technology for Digital I and C

    Energy Technology Data Exchange (ETDEWEB)

    Kwon, K. C.; Kim, J. Y.; Kang, H. K. [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)] (and others)

    2008-06-15

    This research can provide the required safety and reliability of software for the use of nuclear digital safety systems, achieve the software quality sufficient to arrive at the level of the licensing agreement by the nuclear regulatory agency, and establish the rigorous software V and V procedure by the use of domestic technology. These results will provide independent safety software qualification techniques from, with the equivalent level of, the those acquired by advanced countries. The technologies obtained from this research will be able to be employed at advanced reactors such as super-critical fast reactors, high temperature gas-cooled reactors, and small modularized reactors that promote the use of digital systems.

  2. Development of the Licensing Support Technology for Digital I and C

    International Nuclear Information System (INIS)

    Kwon, K. C.; Kim, J. Y.; Kang, H. K.

    2008-06-01

    This research can provide the required safety and reliability of software for the use of nuclear digital safety systems, achieve the software quality sufficient to arrive at the level of the licensing agreement by the nuclear regulatory agency, and establish the rigorous software V and V procedure by the use of domestic technology. These results will provide independent safety software qualification techniques from, with the equivalent level of, the those acquired by advanced countries. The technologies obtained from this research will be able to be employed at advanced reactors such as super-critical fast reactors, high temperature gas-cooled reactors, and small modularized reactors that promote the use of digital systems

  3. Assessment of the usability of a digital learning technology prototype for monitoring intracranial pressure

    Directory of Open Access Journals (Sweden)

    Lilian Regina de Carvalho

    Full Text Available ABSTRACT Objective: to assess the usability of a digital learning technology prototype as a new method for minimally invasive monitoring of intracranial pressure. Method: descriptive study using a quantitative approach on assessing the usability of a prototype based on Nielsen's ten heuristics. Four experts in the area of Human-Computer interaction participated in the study. Results: the evaluation delivered eight violated heuristics and 31 usability problems in the 32 screens of the prototype. Conclusion: the suggestions of the evaluators were critical for developing an intuitive, user-friendly interface and will be included in the final version of the digital learning technology.

  4. Digital gamma-ray spectroscopy based on FPGA technology

    CERN Document Server

    Bolic, M

    2002-01-01

    A digital pulse processing system convenient for high rate gamma-ray spectroscopy with NaI(Tl) detectors has been designed. The new programmable logic device has been used for implementation of dedicated high-speed pulse processor, as the central part of the system. The processor is capable to operate at the speed of fast ADC, preserving maximum throughput of the system. Special care has been taken to reduce the distortion of energy spectrum caused by pile-up at high-count rates. The developed system is highly flexible, and the parameters of its operation can be changed in software. The performance of the system was tested for high counting rate of 400000 s sup - sup 1.

  5. Digital Native Preservice Teachers: An Examination of Their Self-Efficacy Beliefs Regarding Technology Integration in Classroom Settings

    Science.gov (United States)

    Southall, Sarah Parker

    2012-01-01

    The purpose of this mixed-method study was to investigate digital native preservice teachers' self-efficacy beliefs regarding their technology experiences and skills at the beginning and at the end of their field placement semester. Digital natives, as defined by Prensky (2001), are students born after 1980 who have been raised with digital media…

  6. Exploring Professional Development Needs of Digital Immigrant and Digital Native Teachers for the Successful Integration of Technology in a Jewish Elementary Education Setting

    Science.gov (United States)

    Salomon, Anna M.

    2014-01-01

    Today's teachers are tasked with the integration of technology in their curriculum and their classrooms. In order to do that, teachers require professional development/training and support. Further, schools are encountering a unique landscape of teaching with digital natives becoming teachers alongside digital immigrants. This study aimed to…

  7. DIGITAL

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk...

  8. The application of digital image plane holography technology to identify Chinese herbal medicine

    Science.gov (United States)

    Wang, Huaying; Guo, Zhongjia; Liao, Wei; Zhang, Zhihui

    2012-03-01

    In this paper, the imaging technology of digital image plane holography to identify the Chinese herbal medicine is studied. The optical experiment system of digital image plane holography which is the special case of pre-magnification digital holography was built. In the record system, one is an object light by using plane waves which illuminates the object, and the other one is recording hologram by using spherical light wave as reference light. There is a Micro objective lens behind the object. The second phase factor which caus ed by the Micro objective lens can be eliminated by choosing the proper position of the reference point source when digital image plane holography is recorded by spherical light. In this experiment, we use the Lygodium cells and Onion cells as the object. The experiment results with Lygodium cells and Onion cells show that digital image plane holography avoid the process of finding recording distance by using auto-focusing approach, and the phase information of the object can be reconstructed more accurately. The digital image plane holography is applied to the microscopic imaging of cells more effectively, and it is suit to apply for the identify of Chinese Herbal Medicine. And it promotes the application of digital holographic in practice.

  9. Designing learning apparatus to promote twelfth grade students’ understanding of digital technology concept: A preliminary studies

    Science.gov (United States)

    Marlius; Kaniawati, I.; Feranie, S.

    2018-05-01

    A preliminary learning design using relay to promote twelfth grade student’s understanding of logic gates concept is implemented to see how well it’s to adopted by six high school students, three male students and three female students of twelfth grade. This learning design is considered for next learning of digital technology concept i.e. data digital transmition and analog. This work is a preliminary study to design the learning for large class. So far just a few researches designing learning design related to digital technology with relay. It may due to this concept inserted in Indonesian twelfth grade curriculum recently. This analysis is focus on student difficulties trough video analysis to learn the concept. Based on our analysis, the recommended thing for redesigning learning is: students understand first about symbols and electrical circuits; the Student Worksheet is made in more detail on the assembly steps to the project board; mark with symbols at points in certain places in the circuit for easy assembly; assembly using relays by students is enough until is the NOT’s logic gates and the others that have been assembled so that effective time. The design of learning using relays can make the relay a liaison between the abstract on the digital with the real thing of it, especially in the circuit of symbols and real circuits. Besides it is expected to also enrich the ability of teachers in classroom learning about digital technology.

  10. Communications received from certain Member States regarding guidelines for the export of nuclear material, equipment and technology

    International Nuclear Information System (INIS)

    1993-01-01

    The document reproduces the Note Verbale dated 2 December 1992 received by the Director General from the Resident Representative of Argentina to the Agency relating to the export of nuclear material, equipment or technology, in order to provide information on that Government's Guidelines for Transfers of Nuclear-related Dual-use Equipment, Material and related Technology

  11. Information and communication technologies in tomorrow's digital classroom

    Science.gov (United States)

    Bogoeva, Asya

    2014-05-01

    Education has to respond to the new challenges and opportunities offered by the 21-th Century as well as to the main trend in the world community development related to a creation of Knowledge Society. Implementation of ICT at school is a priority of the Global education and helps to develop the four pillars of learning - learning to know, learning to do, learning to be and learning to live together. Digital competence of the students is also a part of the European Union key competences. The essential elements in geographical study are: spatial analysis, with an emphasis on location; ecological analysis, with an emphasis on people-environment relationships; and regional analysis, with an emphasis on areal differentiation. Modern geography is best characterized as the study of distributions and relationships among different natural and social patterns of distributions. Viewing the world from a spatial perspective and employing a holistic approach are important characteristics of contemporary and future Geography learning. Using innovative methods for presenting the global aspects of distribution patterns and their changes is a priority of teaching geosciences at our school. The use of geo-media in classroom helps learners develop their ICT competences. Geolocalised information is used everywhere in society and it is therefore essential for students to learn how to use different forms of geographic media Geo-media is now being used in scientific researches and reasoning. One of the geo-media tools that I use in my classes is Google Earth for presenting different geographic processes and phenomena like visualization of current global weather conditions, global warming, deforestation areas, earthquake areas, etc. Using Geographic Information systems for presenting and studying geographical processes is also one way to identify, analyze, and understand the locations. Our school is a part of digital-earth.eu network which is under development now. The European Centers of

  12. Investigating the pros and cons of digital technologies | IDRC ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Did you know that people in some countries sacrifice bread and milk to buy mobile phone credit?” asks 2015 IDRC Research Award recipient Katie Clancy. This is one of the insights she gained while investigating whether hackathons could generate long-term technological solutions to development issues. “There are really ...

  13. Transitions in the wrong direction? Digital technologies and daily life

    DEFF Research Database (Denmark)

    Røpke, Inge; Christensen, Toke Haunstrup

    2013-01-01

    The environmental implications of information and communication technology (ICT) have been the subject of study since the early 1990s. Although previous research covers energy issues quite extensively, the treatment of the energy impacts of ICT integration in everyday life is still inadequate. Th...

  14. Digital Literacies in Higher Education: Exploring Textual and Technological Practice

    Science.gov (United States)

    Lea, Mary R.; Jones, Sylvia

    2011-01-01

    Concerns are frequently raised about undergraduates being so immersed in web-based technologies in their broader lives that they have difficulties engaging in more conventional study practices, such as academic reading and writing essays. The research reported on here examines this issue through a literacies lens. The project findings illustrate…

  15. Wideband CMOS receivers

    CERN Document Server

    Oliveira, Luis

    2015-01-01

    This book demonstrates how to design a wideband receiver operating in current mode, in which the noise and non-linearity are reduced, implemented in a low cost single chip, using standard CMOS technology.  The authors present a solution to remove the transimpedance amplifier (TIA) block and connect directly the mixer’s output to a passive second-order continuous-time Σ∆ analog to digital converter (ADC), which operates in current-mode. These techniques enable the reduction of area, power consumption, and cost in modern CMOS receivers.

  16. Exploring virtual reality technology and the Oculus Rift for the examination of digital pathology slides.

    Science.gov (United States)

    Farahani, Navid; Post, Robert; Duboy, Jon; Ahmed, Ishtiaque; Kolowitz, Brian J; Krinchai, Teppituk; Monaco, Sara E; Fine, Jeffrey L; Hartman, Douglas J; Pantanowitz, Liron

    2016-01-01

    Digital slides obtained from whole slide imaging (WSI) platforms are typically viewed in two dimensions using desktop personal computer monitors or more recently on mobile devices. To the best of our knowledge, we are not aware of any studies viewing digital pathology slides in a virtual reality (VR) environment. VR technology enables users to be artificially immersed in and interact with a computer-simulated world. Oculus Rift is among the world's first consumer-targeted VR headsets, intended primarily for enhanced gaming. Our aim was to explore the use of the Oculus Rift for examining digital pathology slides in a VR environment. An Oculus Rift Development Kit 2 (DK2) was connected to a 64-bit computer running Virtual Desktop software. Glass slides from twenty randomly selected lymph node cases (ten with benign and ten malignant diagnoses) were digitized using a WSI scanner. Three pathologists reviewed these digital slides on a 27-inch 5K display and with the Oculus Rift after a 2-week washout period. Recorded endpoints included concordance of final diagnoses and time required to examine slides. The pathologists also rated their ease of navigation, image quality, and diagnostic confidence for both modalities. There was 90% diagnostic concordance when reviewing WSI using a 5K display and Oculus Rift. The time required to examine digital pathology slides on the 5K display averaged 39 s (range 10-120 s), compared to 62 s with the Oculus Rift (range 15-270 s). All pathologists confirmed that digital pathology slides were easily viewable in a VR environment. The ratings for image quality and diagnostic confidence were higher when using the 5K display. Using the Oculus Rift DK2 to view and navigate pathology whole slide images in a virtual environment is feasible for diagnostic purposes. However, image resolution using the Oculus Rift device was limited. Interactive VR technologies such as the Oculus Rift are novel tools that may be of use in digital pathology.

  17. Trends in the use of digital technology for control and regulation of power supplies

    International Nuclear Information System (INIS)

    Carwardine, J.; Lenkszus, F.

    1999-01-01

    Since the availability of computers, accelerator power supplies have relied on digital technology in some way, from such simple tasks as turning the supplies on and off to the supplying of computer-controlled references. However, advances in digital technology, both in performance and cost, allow considerably more than simple control and monitoring. This, coupled with increasing demand for higher performance and monitoring capabilities, has made it appealing to integrate such technology into power supply designs. This paper will review current trends in the use of such advanced technology as embedded DSP controllers, and the application of real-time algorithms to the regulation and control of power supplies for accelerators and other large-scale physics applications

  18. Performance of digital integrated circuit technologies at very high temperatures

    Energy Technology Data Exchange (ETDEWEB)

    Prince, J.L.; Draper, B.L.; Rapp, E.A.; Kromberg, J.N.; Fitch, L.T.

    1980-01-01

    Results of investigations of the performance and reliability of digital bipolar and CMOS integrated circuits over the 25 to 340/sup 0/C range are reported. Included in these results are both parametric variation information and analysis of the functional failure mechanisms. Although most of the work was done using commercially available circuits (TTL and CMOS) and test chips from commercially compatible processes, some results of experimental simulations of dielectrically isolated CMOS are also discussed. It was found that commercial Schottky clamped TTL, and dielectrically isolated, low power Schottky-clamped TTL, functioned to junction temperatures in excess of 325/sup 0/C. Standard gold doped TTL functioned only to 250/sup 0/C, while commercial, isolated I/sup 2/L functioned to the range 250/sup 0/C to 275/sup 0/C. Commercial junction isolated CMOS, buffered and unbuffered, functioned to the range 280/sup 0/C to 310/sup 0/C/sup +/, depending on the manufacturer. Experimental simulations of simple dielectrically isolated CMOS integrated circuits, fabricated with heavier doping levels than normal, functioned to temperatures in excess of 340/sup 0/C. High temperature life testing of experimental, silicone-encapsulated simple TTL and CMOS integrated circuits have shown no obvious life limiting problems to date. No barrier to reliable functionality of TTL bipolar or CMOS integrated ciruits at temperatures in excess of 300/sup 0/C has been found.

  19. Initial results for compressive sensing in electronic support receiver systems

    CSIR Research Space (South Africa)

    Du Plessis, WP

    2011-04-01

    Full Text Available determined by the antenna and microwave system comprising the transmitter and receiver, while the instantaneous bandwidth is mainly determined by the Analog-to-Digital Converter (ADC) in the receiver. A radar can thus operate at any frequency within its... Electronic/Electromagnetic Support Measures (ESM) was used historically [1], [2]. Modern ES receiver systems are based on digital receivers allowing powerful signal processing techniques to be used [3], [4]. Recent developments in sampling technology...

  20. Investigation of Virtual Digital Human and Robotic Device Technology Merger Complimented by Haptics and Autostereoscopic Displays, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — The proposed innovations conform precisely to the technology needs described in Subtopic T5.02, Robotics and Virtual Digital Human Technologies. ?Two potential areas...

  1. Object-Based Teaching and Learning for a Critical Assessment of Digital Technologies in Arts and Cultural Heritage

    Science.gov (United States)

    Hess, M.; Garside, D.; Nelson, T.; Robson, S.; Weyrich, T.

    2017-08-01

    As cultural sector practice becomes increasingly dependent on digital technologies for the production, display, and dissemination of art and material heritage, it is important that those working in the sector understand the basic scientific principles underpinning these technologies and the social, political and economic implications of exploiting them. The understanding of issues in cultural heritage preservation and digital heritage begins in the education of the future stakeholders and the innovative integration of technologies into the curriculum. This paper gives an example of digital technology skills embedded into a module in the interdisciplinary UCL Bachelor of Arts and Sciences, named "Technologies in Arts and Cultural Heritage", at University College London.

  2. Subsystem of statistic indicators for characterizing the digital technology

    OpenAIRE

    Dana COLIBABA; Giani GRADINARU; Irina ISAIC MANIU

    2006-01-01

    The technology, in close connection with TIC, might constitute the main source of economic growth in Romania. It allows individuals as well as firms from the public and private sector to beneficiate from the opportunity of participating to socio-economic life, to gain the necessary abilities for evolving in the knowledge society, to develop new business strategies and to experiment the techniques provided by the electronic ruling

  3. Technology Assessment and High-Speed Trains: facing the challenge of emergent digital society

    OpenAIRE

    Moretto, Susana Cristina dos Santos Gomes Martins

    2017-01-01

    The present PhD dissertation addresses the extension of selective environments of new technologies within the high-speed train technological system from business and regulations to the wider society. And, it argues the recognition of society as an actor in that system. Motivating it is the observed ever increase exposure of high-speed trains to public acceptance, caused by empowered society from fast ICT advancements. They refer to digitalization - the rise of social media and big data, co...

  4. Digital health care: where health care, information technology, and the Internet converge.

    Science.gov (United States)

    Frank, S R; Williams, J R; Veiel, E L

    2000-01-01

    The digital health care industry applies information technologies to facilitate communications, commerce, transactions, business problem solving, and enhanced decision making for one or more groups that supply, consume, or finance health care services and products. The variation among companies is significant, but each one attempts to leverage information technology to drive sustainable evolutionary change. In an overview of the industry, a framework is provided to understand the maze of business plans.

  5. The Digital Economy: Social Interaction Technologies – an Overview

    Directory of Open Access Journals (Sweden)

    Teófilo Redondo

    2015-03-01

    Full Text Available Social interaction technologies (SIT is a very broad field that encompasses a large list of topics: interactive and networked computing, mobile social services and the Social Web, social software and social media, marketing and advertising, various aspects and uses of blogs and podcasting, corporate value and web-based collaboration, e-government and online democracy, virtual volunteering, different aspects and uses of folksonomies, tagging and the social semantic cloud of tags, blog-based knowledge management systems, systems of online learning, with their ePortfolios, blogs and wikis in education and journalism, legal issues and social interaction technology, dataveillance and online fraud, neogeography, social software usability, social software in libraries and nonprofit organizations, and broadband visual communication technology for enhancing social interaction. The fact is that the daily activities of many businesses are being socialized, as is the case with Yammer (https://www.yammer.com/, the social enterprise social network. The leitmotivs of social software are: create, connect, contribute, and collaborate.

  6. Digital technology use in ELT classrooms and self-directed learning

    Directory of Open Access Journals (Sweden)

    Nehir Sert

    2016-04-01

    Full Text Available The digital era is a new challenge for teachers. While children get acquainted with digital technology before the age of six, teachers, who have encountered the digital world at a later time in their lives, struggle with it. Self-directed learning, which is crucial for lifelong learning, can be enhanced by the use of technology within and beyond classroom settings. The aim of this study was to examine the difference between the perceptions of students in low- and high-income groups about their use of technology in a general sense and their teachers’ use of technology in ELT classrooms. It also tested the correlation between the perceptions of their self-directed learning behaviours and their own/their teachers’ technology use. The population of the study consisted of 75 students from high- and 70 students from low-income groups. Causal comparative and correlational research methods were adopted in the study. The surveys to measure the students’ perceptions about technology use were developed by the researchers. A scale, established by Demirtas and Sert (2010, was used to identify the level of self-directed learning views of the students. The data were collected at the beginning of the first term of the 2015-2016 school year. The results indicated that there was no significant difference between perceptions of the low- and high-income students regarding their own technology use. Likewise, perceptions of the low- and high-income students did not differ regarding their teachers’ technology use. There was no correlation between the perceptions of the low-/high-income mixed group regarding their use of technology and their teachers’ use of technology. Lastly, self-directed learning perceptions of the low-/high-income mixed group did not correlate with their perceptions on any aspects of technology use. The educational implications of these results were discussed and suggestions were put forward in order to produce more effective learning

  7. Construction and Implementation of Teaching Mode for Digital Mapping based on Interactive Micro-course Technology

    Directory of Open Access Journals (Sweden)

    Ning Gao

    2018-02-01

    Full Text Available The era of “Internet + education” has caused reforms in teaching ideas, teaching modes, and learning styles. The emergence of micro-course technology provides new strategies for integrating learning styles. Task-driven digital mapping teaching, known as traditional classroom organization, has poor teaching effect due to single learning style and strategy. A new teaching mode for digital mapping was constructed in this study based on micro-course technology by combining interactive micro-course technology and digital mapping teaching to adapt to the demands of modern teaching. This teaching mode mainly included four modules, namely, micro-courseware, micro-video, micro-exercise, and micro-examination. It realized the hierarchical teaching of knowledge points in digital mapping course, simplification of basic principles, simulation of engineering cases, and self-evaluation of learning outcomes. The teaching mode was applied to 114 students from the Mapping Engineering Department of Henan University of Urban Construction. Results indicate that the proposed teaching mode based on interactive micro-course technology promoting the independent after-class learning of the students, stimulating their learning enthusiasm, enhancing their practical abilities of the students, and improving the effect of teaching. This mode of teaching provides a new concept for the teaching mode reform of other courses in mapping engineering.

  8. Investigating the Learning Challenges Presented by Digital Technologies to the College of Education in Kuwait University

    Science.gov (United States)

    Aldhafeeri, Fayiz; Male, Trevor

    2016-01-01

    There is now widespread recognition that digital technologies, particularly portable hand held devices capable of Internet connection, present opportunities and challenges to the way in which student learning is organized in schools, colleges and institutions of higher education in the 21st Century. Traxler, "Journal of the Research Centre…

  9. Implementing Digital Storytelling as a Technology Integration Approach with Primary School Children

    Directory of Open Access Journals (Sweden)

    Nuala Sweeney-Burt

    2014-06-01

    Full Text Available Irish educational policy acknowledges the importance of integrating technology meaningfully into teaching and learning at the primary level. Much remains to be done, however, in terms of developing, practically implementing and evaluating the use of technology in the Irish primary classroom. This paper describes a study on the use of a structured approach to digital storytelling as a tool for meaningful technology integration with children at primary level. In this study, the researcher developed a structured approach for implementing digital storytelling with primary school children, and collaborated with a class teacher in an Irish primary school to prepare to implement the approach. Multiple qualitative methods were used to evaluate the implementation, including interviews with the teacher, classroom observation, and focus group interviews with participating children. The results suggested that this structured approach to digital storytelling has the potential to be used successfully as a meaningful technology integration approach with this cohort. The findings also explored implications for the implementation of digital storytelling at primary level, and identified aspects on which further research should be undertaken to enhance and extend the approach that was used.

  10. Digital Technology in the Visual Arts Classroom: An [un]Easy Partnership

    Science.gov (United States)

    Wilks, Judith; Cutcher, Alexandra; Wilks, Susan

    2012-01-01

    This article scrutinizes the dichotomy of the uneasy and easy partnerships that exist between digital technology and visual arts education. The claim that by putting computers into schools "we have bought 'one half of a product'... we've bought the infrastructure and the equipment but we haven't bought the educational…

  11. Additive and Disruptive Pedagogies: The Use of Slowmation as an Example of Digital Technology Implementation

    Science.gov (United States)

    Vratulis, Vetta; Clarke, Tony; Hoban, Garry; Erickson, Gaalen

    2011-01-01

    The purpose of this study was to explore the experiences of 35 preservice teachers as they were introduced to a new digital technology, "Slowmation" (abbreviated from Slow Animation), as a "disruptive" pedagogy over a period of 12 months. The participants in the study were 35 preservice teachers from an elementary cohort. Primary data sources…

  12. Investigating Parents' Attitudes towards Digital Technology Use in Early Childhood: A Case Study from Croatia

    Science.gov (United States)

    Mikelic Preradovic, Nives; Lešin, Gordana; Šagud, Mirjana

    2016-01-01

    The aim of this study is to investigate perceptions of parents in Croatia towards advantages and disadvantages of computer use in general as well as their children's computer use and to reveal parents' concerns and opinions about digital technology (DT) education in kindergarten. The paper reports on research findings from one of the large public…

  13. Facilitating English-Language Learners' Oral Reading Fluency with Digital Pen Technology

    Science.gov (United States)

    Chen, Chih-Ming; Tan, Chia-Chen; Lo, Bey-Jane

    2016-01-01

    Oral reading fluency is an indicator of overall reading competence. Many studies have claimed that repeated reading can promote oral reading fluency. Currently, novel Web- or computer-based reading technologies offer interactive digital materials that promote English oral reading fluency using the repeated reading strategy; however, paper-based…

  14. Digital Technologies and the Mediation of Undergraduate Students' Collaborative Music Compositional Practices

    Science.gov (United States)

    Dobson, Elizabeth; Littleton, Karen

    2016-01-01

    Music education is supported by an increasing range of digital technologies that afford a remarkable divergence of opportunities for learning within the classroom. Musical creativities are not, however, limited to classroom situations; all musicians are engaged in work that traverses multiple social and physical settings. Guided by sociocultural…

  15. Beyond technology : Identifying local government challenges for using digital platforms for citizen engagement

    NARCIS (Netherlands)

    Falco, E.; Kleinhans, R.J.

    2018-01-01

    Previous research has highlighted that there is a lack of advanced technological solutions able to foster government-citizens collaboration. We argue that many examples of digital participatory platforms are already available and also ready to use for governments and citizens. Hence, causes for

  16. Children under Five and Digital Technologies: Implications for Early Years Pedagogy

    Science.gov (United States)

    Palaiologou, Ioanna

    2016-01-01

    This project aimed to investigate the types of digital technologies children under the age of five are using at home and assess the possible implications for early years pedagogy. The research, carried out between 2010 and 2012, was based in four European countries: England, Greece, Malta and Luxemburg. A mixed methods approach was employed to…

  17. Digital Games as Educational Technology: Promise and Challenges in the Use of Games to Teach

    Science.gov (United States)

    Tobias, Sigmund; Fletcher, J. Dexter; Chen, Fei

    2015-01-01

    Digital games were reviewed as an emerging tool in educational technology. Factors such as instructional effectiveness, time on task, relationship to curricula, student socio-economic status, violence in games, and game mechanics were considered. Despite considerable variability among studies, larger overall effect sizes for the impact of games on…

  18. Student Teachers' Discourse about Digital Technologies and Transitions between Formal and Informal Learning Contexts

    Science.gov (United States)

    Pöntinen, Susanna; Dillon, Patrick; Väisänen, Pertti

    2017-01-01

    This research is a contribution to issues of digital technology use at the interface of formal and informal learning contexts. The research was conducted in the discourse tradition and investigates Finnish teacher training students' 'manners of speaking' as resources for, and obstacles to, making pedagogical changes in response to the potential of…

  19. Exploring the Impact of Digital Technologies on Professional Responsibilities and Education

    Science.gov (United States)

    Fenwick, Tara; Edwards, Richard

    2016-01-01

    Digital technologies in combination with "big" data and predictive analytics are having a significant impact upon professional practices at individual, organisational, national and international levels. The interplay of code, algorithms and big data are increasingly pervasive in the governing, leadership and practices of different…

  20. Michigan State University Extension Educators' Perceptions of the Use of Digital Technology in Their Work

    Science.gov (United States)

    Wells, Elizabeth Chase

    2009-01-01

    This research study examined Michigan State University Extension educators' perceptions of the use of digital technology in their work. It used a mixed method of research which included a mailed survey and interviews of selected respondents. A census survey using Dillman's Total Design method was sent to 290 field staff of Michigan State…

  1. Digital technology in mathematics education : Why it works (or doesn't)

    NARCIS (Netherlands)

    Drijvers, P.H.M.

    2015-01-01

    The integration of digital technology confronts teachers, educators and researchers with many questions. What is the potential of ICT for learning and teaching, and which factors are decisive in making it work in the mathematics classroom? To investigate these questions, six cases from leading

  2. Digital Technology: the Effect of Connected World to Computer Ethic and Family

    Directory of Open Access Journals (Sweden)

    Benfano Soewito

    2015-05-01

    Full Text Available The development of digital technology such as smartphones, tablets and other gadgets grows very rapidly in the last decade so does the development of mobile applications for those mobile systems or smartphones. Unfortunately, those applications often do not specify the age range for their users. This is actually a problem in the world of digital technology and software development. It is not yet known whether the applications is good be used for children or not. Nowadays, parents are faced with the dilemma of allowing their children to use these modern gadgets, which often lead to serious addiction or keeping them in the dark and risk raising ignorant kids. This research shows 80% of respondents agree or strongly agree that the gadget will affect to the development of children social skill. Therefore, in this research, the framework for ethical assessment is introduced and it can be applied to digital technology included gadget and its application in order to mitigate the negative effect of digital technology and gadgets.

  3. A Flipped First-Year Digital Circuits Course for Engineering and Technology Students

    Science.gov (United States)

    Yelamarthi, Kumar; Drake, Eron

    2015-01-01

    This paper describes a flipped and improved first-year digital circuits (DC) course that incorporates several active learning strategies. With the primary objective of increasing student interest and learning, an integrated instructional design framework is proposed to provide first-year engineering and technology students with practical knowledge…

  4. Designing a Deeply Digital Science Curriculum: Supporting Teacher Learning and Implementation with Organizing Technologies

    Science.gov (United States)

    Leary, Heather; Severance, Samuel; Penuel, William R.; Quigley, David; Sumner, Tamara; Devaul, Holly

    2016-01-01

    This paper examines the impacts of technology (e.g., Chromebooks, Google Drive) on teacher learning and student activity in the development and implementation of a deeply digital high school biology unit. Using design-based implementation research, teachers co-designed with researchers and curriculum specialists a student-centered unit aligned to…

  5. Investigating Elementary School Students' Technology Acceptance by Applying Digital Game-Based Learning to Environmental Education

    Science.gov (United States)

    Cheng, Yuh-Ming; Lou, Shi-Jer; Kuo, Sheng-Huang; Shih, Ru-Chu

    2013-01-01

    In order to improve and promote students' environmental knowledge, attitudes, and behaviour, integrating environmental education into the primary education curriculum has become a key issue for environmental education. For this reason, this study aimed to investigate elementary school students' acceptance of technology applying digital game-based…

  6. Digital technology and mid-adopting teachers’ professional development : a case study

    NARCIS (Netherlands)

    Drijvers, Paul|info:eu-repo/dai/nl/074302922; Tacoma, Sietske|info:eu-repo/dai/nl/411923080; Mol, Amy; Heuvel, C. van den; Doorman, Michiel|info:eu-repo/dai/nl/126974764; Boon, Peter|info:eu-repo/dai/nl/203374207

    2014-01-01

    The integration of digital technology into secondary mathematics education is not yet a widespread success. As teachers are crucial players in this integration, an important challenge is not only to attract early adopters, but also to support mid-adopting teachers in their professional development

  7. Current Issues and Trends in Multidimensional Sensing Technologies for Digital Media

    Science.gov (United States)

    Nagata, Noriko; Ohki, Hidehiro; Kato, Kunihito; Koshimizu, Hiroyasu; Sagawa, Ryusuke; Fujiwara, Takayuki; Yamashita, Atsushi; Hashimoto, Manabu

    Multidimensional sensing (MDS) technologies have numerous applications in the field of digital media, including the development of audio and visual equipment for human-computer interaction (HCI) and manufacture of data storage devices; furthermore, MDS finds applications in the fields of medicine and marketing, i.e., in e-marketing and the development of diagnosis equipment.

  8. Between Assessments, Digital Technologies and Big Data: The Growing Influence of "Hidden" Data Mediators in Education

    Science.gov (United States)

    Hartong, Sigrid

    2016-01-01

    The past few decades have witnessed a global enforcement of "governance by data" in education policy, including a significant increase of assessments and quantified evaluation. Within this context, this article focuses particularly on the intensifying evolvement of new (digital) information technologies and "mediated"…

  9. Communications received from Member States regarding guidelines for the export of nuclear material, equipment and technology

    International Nuclear Information System (INIS)

    1994-11-01

    The Director General has received notes verbales relating to the export of nuclear material, equipment and technology from the following Permanent Missions to the International Atomic Energy Agency: notes verbales dated 15 June 1994 from the Permanent Missions of Argentina, Australia, Austria, Belgium, Bulgaria, Canada, the Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Japan, Luxembourg, Netherlands, Norway, Poland, Portugal, Romania, the Slovak Republic, Spain, Sweden, Switzerland, the United Kingdom of Great Britain and Northern Ireland and the United States of America; and a note verbale dated 10 November 1994 from the Permanent Mission of the Russian Federation. The purpose of these notes verbales is to provide further information on these Governments' nuclear export policies and practices. In the light of the wish expressed at the end of each note verbale, the analogous text of the notes verbales is attached hereto. The enclosure of these notes verbales with the amendments to the ''Guidelines for Nuclear Transfers'' contained in INFCIRC/254/Rev.1/Part 1/Mod.1 is reproduced in the Annex

  10. Interference Rejection in Receivers by Frequency Translated Low‿Pass Filtering and Digitally Enhanced Harmonic‿Rejection Mixing

    NARCIS (Netherlands)

    Klumperink, Eric A.M.; Ru, Z.; Moseley, N.A.; Nauta, Bram

    2011-01-01

    Software-Defined Radio (SDR) and Cognitive Radio (CR) concepts have recently drawn considerable interest. These radio concepts built on digital signal processing to realize flexibly programmable radio transceivers, which can adapt in a smart way to their environment. As CMOS is the mainstream IC

  11. An Investigation of Middle School Science Teachers and Students Use of Technology inside and outside of Classrooms: Considering Whether Digital Natives Are More Technology Savvy than Their Teachers

    Science.gov (United States)

    Wang, Shiang-Kwei; Hsu, Hui-Yin; Campbell, Todd; Coster, Daniel C.; Longhurst, Max

    2014-01-01

    The purpose of the study is to investigate the popular assumption that the "digital natives" generation surpasses the previous "digital immigrants" generation in terms of their technology experiences, because they grow up with information and communication technology. The assumption presumes that teachers, the digital…

  12. Exploring the Digital Divide: The Use of Digital Technologies in Ontario Public Schools

    Directory of Open Access Journals (Sweden)

    Bodong Chen

    2015-10-01

    Full Text Available Combining data from a school principal survey with student demographics and achievement data, the present study aimed to develop a much needed understanding of ICT usage in Ontario’s K-12 public schools. Results indicated equitable first-order access to technology for schools, early integration of ICT from the earliest grades, frequent application of ICT in teaching, and an enabling effect of ICT on additional access to learning resources and distance learning. However, challenges were also uncovered in building technology infrastructure for a small fraction of schools; ensuring home access for schools with lower family incomes, smaller size or from remote regions; and providing teachers with professional development for choosing online materials and adopting emerging ICT-enabled teaching practice. Furthermore, this study highlighted the importance of parent involvement in ICT usage and the potential beneficial linkage between ICT usage and student learning achievement.

  13. "Happy and Excited": Perceptions of Using Digital Technology and Social Media by Young People Who Use Augmentative and Alternative Communication

    Science.gov (United States)

    Hynan, Amanda; Murray, Janice; Goldbart, Juliet

    2014-01-01

    Young people are using digital technology and online social media within their everyday lives to enrich their social relationships. The UK government believes that using digital technology can improve social inclusion. One well-recognized outcome measure for establishing social inclusion is to examine opportunities for self-determination.…

  14. Digital Tools and Challenges to Institutional Traditions of Learning: Technologies, Social Memory and the Performative Nature of Learning

    Science.gov (United States)

    Saljo, R.

    2010-01-01

    The purpose of this article is to offer some reflections on the relationships between digital technologies and learning. It is argued that activities of learning, as they have been practised within institutionalized schooling, are coming under increasing pressure from the developments of digital technologies and the capacities to store, access and…

  15. Inclusive Digital Technologies for People with Communication Disabilities

    DEFF Research Database (Denmark)

    Konnerup, Ulla

    2018-01-01

    Suffering from communication disabilities limits a person’s ability to participate in communicative and social interactions, public democratic debates and learning activities. The possibility of trying out ideas and opinions is weakened and it might have an impact on the ability to tell one’s life...... inclusion and empowering people with communication difficulties are offered. However, more knowledge about how learners with special challenges benefit from ICT in their communication and learning and what kind of technology that qualify rehabilitation is needed. Based on research with people suffering from...

  16. Internet technology for clinical application in a digital radiology department

    International Nuclear Information System (INIS)

    Bergh, B.; Pietsch, M.; Vogl, T.J.

    2000-01-01

    Problem: To provide an overview and to assess the clinical feasibility of internet technology-based systems for hospital-wide image and report distribution as well as for video conferencing. Methods: The paper describes the theoretical concept behind, the various technical approaches and the experience gained from different systems. Results: Image and report distribution: Advantages include the universal availability of images and reports inside and outside hospitals; ease of use; security features; image and report integration; cost savings by reducing support and training efforts and by optimising available hardware. The main critical issues are performance and workflow integration with RIS and PACS. Video conferencing: Main advantages are the standardised, software-based approach and the low investments for hard- and software. Depending on the desired usage the communication performance can be seen as inappropriate. Conclusion: Today, internet technology-based systems appear to satisfy the main clinical needs in radiology. The mentioned drawbacks could be eliminated by means of modified software implementation and focused standardisation efforts. Considering the numerous advantages of these systems a further distribution can be expected for the future. (orig.) [de

  17. Ethical perspectives on recommending digital technology for patients with mental illness.

    Science.gov (United States)

    Bauer, Michael; Glenn, Tasha; Monteith, Scott; Bauer, Rita; Whybrow, Peter C; Geddes, John

    2017-12-01

    The digital revolution in medicine not only offers exciting new directions for the treatment of mental illness, but also presents challenges to patient privacy and security. Changes in medicine are part of the complex digital economy based on creating value from analysis of behavioral data acquired by the tracking of daily digital activities. Without an understanding of the digital economy, recommending the use of technology to patients with mental illness can inadvertently lead to harm. Behavioral data are sold in the secondary data market, combined with other data from many sources, and used in algorithms that automatically classify people. These classifications are used in commerce and government, may be discriminatory, and result in non-medical harm to patients with mental illness. There is also potential for medical harm related to poor quality online information, self-diagnosis and self-treatment, passive monitoring, and the use of unvalidated smartphone apps. The goal of this paper is to increase awareness and foster discussion of the new ethical issues. To maximize the potential of technology to help patients with mental illness, physicians need education about the digital economy, and patients need help understanding the appropriate use and limitations of online websites and smartphone apps.

  18. Digital Care in Epilepsy: A Conceptual Framework for Technological Therapies

    Directory of Open Access Journals (Sweden)

    Rupert Page

    2018-03-01

    Full Text Available Epilepsy is associated with a significant increase in morbidity and mortality. The likelihood is significantly greater for those patients with specific risk factors. Identifying those at greatest risk of injury and providing expert management from the earliest opportunity is made more challenging by the circumstances in which many such patients present. Despite increasing recognition of the importance of earlier identification of those at risk, there is little or no improvement in outcomes over more than 30 years. Despite ever increasing sophistication of drug development and delivery, there has been no meaningful improvement in 1-year seizure freedom rates over this time. However, in the last few years, there has been an increase in patient-triggered interventions based on automated monitoring of indicators and risk factors facilitated by technological advances. The opportunities such approaches provide will only be realized if accompanied by current working practice changes. Replacing traditional follow-up appointments at arbitrary intervals with dynamic interventions, remotely and at the point and place of need provides a better chance of a substantial reduction in seizures for people with epilepsy. Properly implemented, electronic platforms can offer new opportunities to provide expert advice and management from first presentation thus improving outcomes. This perspective paper provides and proposes an informed critical opinion built on current evidence base of an outline techno-therapeutic approach to harnesses these technologies. This conceptual framework is generic, rather than tied to a specific product or solution, and the same generalized approach could be beneficially applied to other long-term conditions.

  19. Digital Care in Epilepsy: A Conceptual Framework for Technological Therapies.

    Science.gov (United States)

    Page, Rupert; Shankar, Rohit; McLean, Brendan N; Hanna, Jane; Newman, Craig

    2018-01-01

    Epilepsy is associated with a significant increase in morbidity and mortality. The likelihood is significantly greater for those patients with specific risk factors. Identifying those at greatest risk of injury and providing expert management from the earliest opportunity is made more challenging by the circumstances in which many such patients present. Despite increasing recognition of the importance of earlier identification of those at risk, there is little or no improvement in outcomes over more than 30 years. Despite ever increasing sophistication of drug development and delivery, there has been no meaningful improvement in 1-year seizure freedom rates over this time. However, in the last few years, there has been an increase in patient-triggered interventions based on automated monitoring of indicators and risk factors facilitated by technological advances. The opportunities such approaches provide will only be realized if accompanied by current working practice changes. Replacing traditional follow-up appointments at arbitrary intervals with dynamic interventions, remotely and at the point and place of need provides a better chance of a substantial reduction in seizures for people with epilepsy. Properly implemented, electronic platforms can offer new opportunities to provide expert advice and management from first presentation thus improving outcomes. This perspective paper provides and proposes an informed critical opinion built on current evidence base of an outline techno-therapeutic approach to harnesses these technologies. This conceptual framework is generic, rather than tied to a specific product or solution, and the same generalized approach could be beneficially applied to other long-term conditions.

  20. Research on applicability of optical and digital technologies to nuclear power stations

    International Nuclear Information System (INIS)

    Emoto, Motonori

    1990-01-01

    Recently, the development of electronic technology represented by optical multiple transmission technology and digital technology is remarkable, and it is expected that this tendency advances further hereafter. The improvement of the reliability, operational performance and maintainability of nuclear power stations by applying these most advanced technologies to them has been desired. In this research, it was found that by the application of optical multiple transmission and digital technology to nuclear power stations, their operation by a small number of operators, the automation of work management and so on can be realized. Besides, it was found that as the major technologies of hereafter, the advance of artificial intelligence technology, rapid and large capacity information processing, the network of the computers of different types and others is necessary. Further, if these technologies are completed, the clarification of the requirement when those are actually applied to nuclear power stations is necessary, and it was found also that as the matters to be considered at that time, the extent of improvement of reliability, the reduction of risk at the time of the troubles of equipment and other fundamental matters must be clarified hereafter. (K.I.)

  1. a Review of Digital Watermarking and Copyright Control Technology for Cultural Relics

    Science.gov (United States)

    Liu, H.; Hou, M.; Hu, Y.

    2018-04-01

    With the rapid growth of the application and sharing of the 3-D model data in the protection of cultural relics, the problem of Shared security and copyright control of the three-dimensional model of cultural relics is becoming increasingly prominent. Followed by a digital watermarking copyright control has become the frontier technology of 3-D model security protection of cultural relics and effective means, related technology research and application in recent years also got further development. 3-D model based on cultural relics digital watermarking and copyright control technology, introduces the research background and demand, its unique characteristics were described, and its development and application of the algorithm are discussed, and the prospects of the future development trend and some problems and the solution.

  2. Design of coordinated controller in nuclear power plant based on digital instrument and control technology

    International Nuclear Information System (INIS)

    Cheng Shouyu; Peng Minjun; Liu Xinkai; Zhao Qiang; Deng Xiangxin

    2014-01-01

    Nuclear power plant (NPP) is a multi-input and multi-output, no-linear and time-varying complex system. The conventional PID controller is usually used in NPP control system which is based on analog instrument. The system parameters are easy to overshoot and the response time is longer in the control mode of the conventional PID. In order to improve this condition, a new coordinated control strategy which is based on expert system and the original controllers in the digital instrument and control technology was presented. In order to verify and validate it, the proposed coordinated control technology was tested by the full-scope real-time simulation system. The results prove that using digital instrument and control technology to achieve coordinated controller is feasible, the coordinated controller can effectively improve the dynamic operating characteristics of the system, and the coordinated controller is superior to the conventional PID controller in control performance. (authors)

  3. A Design and Research on Protection of Architectural Heritage Based on Digital Technology

    Directory of Open Access Journals (Sweden)

    Hou Shuang Qing

    2016-01-01

    Full Text Available In the era of digital information, how to reasonably use new-tech and idea for the architectural heritage protection remains urgent. In terms of digital protection, 3D laser scanning technology can perfectly remedy the manual measurement limitation thus correctly obtaining the relevant data. Via analysis, we find that the architectural heritage bears in itself the parameterized characteristic. As Building Information Modeling (BIM can help realize the parametric design, we proposed a feasible Architectural Heritage Information Model with the BIM “family” connecting architectural heritage and BIM. Finally, the parameter-induced graphic driving is achieved based on the relation between the two.

  4. The place of digital technology on the IEA's energy road-maps

    International Nuclear Information System (INIS)

    Ben-Naceur, Kamel

    2017-01-01

    The International Energy Agency (IEA) has drafted road-maps for the next four decades in collaboration with public and private producers and consumers of energy. For each type of energy, these road-maps indicate the key elements for compliance with the objectives of the Paris Climate Agreement. They emphasize the role of digital technology, in particular smart grids, in the transition toward a more digital and more intelligent energy system. The conditions necessary for successfully transforming this sector are mapped out, while attention is called to the risks inherent in this transition

  5. Diagnostic imaging, a 'parallel' discipline. Can current technology provide a reliable digital diagnostic radiology department

    International Nuclear Information System (INIS)

    Moore, C.J.; Eddleston, B.

    1985-01-01

    Only recently has any detailed criticism been voiced about the practicalities of the introduction of generalised, digital, imaging complexes in diagnostic radiology. Although attendant technological problems are highlighted the authors argue that the fundamental causes of current difficulties are not in the generation but in the processing, filing and subsequent retrieval for display of digital image records. In the real world, looking at images is a parallel process of some complexity and so it is perhaps untimely to expect versatile handling of vast image data bases by existing computer hardware and software which, by their current nature, perform tasks serially. (author)

  6. Radiographic film digitizing devices

    International Nuclear Information System (INIS)

    McFee, W.H.

    1988-01-01

    Until recently, all film digitizing devices for use with teleradiology or picture archiving and communication systems used a video camera to capture an image of the radiograph for subsequent digitization. The development of film digitizers that use a laser beam to scan the film represents a significant advancement in digital technology, resulting in improved image quality compared with video scanners. This paper discusses differences in resolution, efficiency, reliability, and the cost between these two types of devices. The results of a modified receiver operating characteristic comparison study of a video scanner and a laser scanner manufactured by the same company are also discussed

  7. Changes in Everyday and Digital Health Technology Use Among Seniors in Declining Health.

    Science.gov (United States)

    Levine, David M; Lipsitz, Stuart R; Linder, Jeffrey A

    2018-03-14

    U.S. seniors' digital health and everyday technology use when their health declines are unknown. Longitudinal cohort using the National Health and Aging Trends Study, a nationally representative, annually administered sample of community-dwelling Medicare beneficiaries (n = 4,037). We used difference-in-differences to assess the adjusted difference (AD) in technology use from 2011 to 2014 between those with and without health declines. Health decline measures included new-onset dementia; new-onset depression; decreases in activities of daily living (ADLs), short physical performance battery (SPPB), grip strength, and self-reported health; relocation to nursing facility; increased hospitalizations; and new-onset comorbidity. Digital health included use of the Internet to research health conditions, contact clinicians, fill prescriptions, and address insurance matters. Between 2011 and 2014, seniors experiencing health decline used various digital health technologies at low absolute rates (range: 1%-20%). Between 2011 and 2014, use of everyday technology decreased significantly among seniors with new-onset dementia (from 73% to 51%; AD, -26%), decreased ADLs (from 76% to 67%; AD, -10%), decreased SPPB (from 88% to 86%; AD, -3%), and relocation to a nursing facility (from 49% to 22%; AD, -31%) compared to seniors without comparable decline (all p seniors with new-onset probable dementia (from 9% to 4%; AD, -6%) and decreased SPPB (from 24% to 25%; AD, -4%; all p senior experiences predicts technology use, which may allow better targeting of digital health to specific seniors. Seniors with new dementia, relocation to a nursing home, and declining physical performance seem especially poor candidates for technology interventions.

  8. Digital Technologies as Tools of Engagement and Dissent from the Perspective of Nonprofit Sector

    Institute of Scientific and Technical Information of China (English)

    LIN Ziying

    2017-01-01

    The widely spread of the digital technologies, such as laptop and the Internet, have brought out profound changes in the economy as wel as in political and social life and intensified the interactions and communication between the state, civil society, and market. For the time being, it offered opportunities for the nonprofit sector to initiate a brand-new stage. This article aims to explore how the technology connects nonprofit sector to government and civil society and assess the impact of technology in nonprofit sector perspective by taking The Red Cross of Society of China as an example.

  9. Advanced digital modulation: Communication techniques and monolithic GaAs technology

    Science.gov (United States)

    Wilson, S. G.; Oliver, J. D., Jr.; Kot, R. C.; Richards, C. R.

    1983-01-01

    Communications theory and practice are merged with state-of-the-art technology in IC fabrication, especially monolithic GaAs technology, to examine the general feasibility of a number of advanced technology digital transmission systems. Satellite-channel models with (1) superior throughput, perhaps 2 Gbps; (2) attractive weight and cost; and (3) high RF power and spectrum efficiency are discussed. Transmission techniques possessing reasonably simple architectures capable of monolithic fabrication at high speeds were surveyed. This included a review of amplitude/phase shift keying (APSK) techniques and the continuous-phase-modulation (CPM) methods, of which MSK represents the simplest case.

  10. Putting agricultural equipment and digital technologies at the cutting edge of agroecology

    Directory of Open Access Journals (Sweden)

    Bellon Maurel Véronique

    2017-05-01

    Full Text Available The agro-ecological transition is an ambitious challenge. It can be met by implementing the fundamentals of agroecology (use of biodiversity, integration of agriculture in landscapes, closure of flow loops in the context of a broad and renewed offer of technologies: agro-equipment, biotechnology, digital technologies… This article explores the role that agro-equipment and digital services can play in this transition. These technologies contribute through various levers to the agro-ecological transition: by improving farming efficiency (more service rendered for the same environmental impact, by precision farming (adaptation of the operations to the needs of the plant or the animal based on a monitoring–diagnosis–recommendation cycle and by the development of specialized machinery helping the farmer to achieve “flow loop-closing” (at the plot level, by maintaining the soil quality, or at the farm level, with the recycling of organic effluents or to take advantage of biodiversity (e.g., with agro-equipment adapted to mixed crops. The technological bricks that are requested and for which advances are expected are: sensors (to measure plant or animal needs and associated digital technologies (information transfer, data processing, precision technologies for input application, robotics, specialized machines to manage soil cover and weeds, or for agroforestry. The brakes and engines for innovation in agro-equipment are studied. The brakes are the generally small structure of the farm manufacturing companies, the deficit of the demand from farmers and the complexity − either real or perceived − of these equipments. To encourage innovation, several levers are to be used: involving users in the design of agro-equipments, creating financial incentives for innovative equipment purchase, and training end-users, prescribers and dealers to the high potential of these new technologies. In conclusion, putting agro-equipment and digital technology

  11. Practical virtue ethics: healthcare whistleblowing and portable digital technology.

    Science.gov (United States)

    Bolsin, S; Faunce, T; Oakley, J

    2005-10-01

    Medical school curricula and postgraduate education programmes expend considerable resources teaching medical ethics. Simultaneously, whistleblowers' agitation continues, at great personal cost, to prompt major intrainstitutional and public inquiries that reveal problems with the application of medical ethics at particular clinical "coalfaces". Virtue ethics, emphasising techniques promoting an agent's character and instructing their conscience, has become a significant mode of discourse in modern medical ethics. Healthcare whistleblowers, whose complaints are reasonable, made in good faith, in the public interest, and not vexatious, we argue, are practising those obligations of professional conscience foundational to virtue based medical ethics. Yet, little extant virtue ethics scholarship seriously considers the theoretical foundations of healthcare whistleblowing. The authors examine whether healthcare whistleblowing should be considered central to any medical ethics emphasising professional virtues and conscience. They consider possible causes for the paucity of professional or academic interest in this area and examine the counterinfluence of a continuing historical tradition of guild mentality professionalism that routinely places relationships with colleagues ahead of patient safety.Finally, it is proposed that a virtue based ethos of medical professionalism, exhibiting transparency and sincerity with regard to achieving uniform quality and safety of health care, may be facilitated by introducing a technological imperative using portable computing devices. Their use by trainees, focused on ethical competence, provides the practical face of virtue ethics in medical education and practice. Indeed, it assists in transforming the professional conscience of whistleblowing into a practical, virtue based culture of self reporting and personal development.

  12. Digital Disconnect or Digital Difference? A Socio-Ecological Perspective on Young Children's Technology Use in the Home and the Early Childhood Centre

    Science.gov (United States)

    Edwards, Susan; Henderson, Michael; Gronn, Donna; Scott, Anne; Mirkhil, Moska

    2017-01-01

    A digital disconnect perspective is founded on an assumption that technology use in the home is frequent, creative and generative, and that technology use in the early childhood centre should be the same as that found in the home. However, such arguments divert our attention from understanding the nature of the setting and thereby from an…

  13. On the Brain Basis of Digital Daze in Millennial Minds: Rejoinder to "Digital Technology and Student Cognitive Development: The Neuroscience of the University Classroom"

    Science.gov (United States)

    Brown, Timothy T.

    2016-01-01

    In this issue, Cavanaugh, Giapponi, and Golden (2016) have discussed the new prominent role of digital devices in the lives of students; the possible impact of these widely-used technologies on developing, learning minds; and the relevance of new cognitive neuroscience research and technologies for better understanding the potential effects of…

  14. NASA-LaRc Flight-Critical Digital Systems Technology Workshop

    Science.gov (United States)

    Meissner, C. W., Jr. (Editor); Dunham, J. R. (Editor); Crim, G. (Editor)

    1989-01-01

    The outcome is documented of a Flight-Critical Digital Systems Technology Workshop held at NASA-Langley December 13 to 15 1988. The purpose of the workshop was to elicit the aerospace industry's view of the issues which must be addressed for the practical realization of flight-critical digital systems. The workshop was divided into three parts: an overview session; three half-day meetings of seven working groups addressing aeronautical and space requirements, system design for validation, failure modes, system modeling, reliable software, and flight test; and a half-day summary of the research issues presented by the working group chairmen. Issues that generated the most consensus across the workshop were: (1) the lack of effective design and validation methods with support tools to enable engineering of highly-integrated, flight-critical digital systems, and (2) the lack of high quality laboratory and field data on system failures especially due to electromagnetic environment (EME).

  15. 76 FR 10598 - Office of the National Coordinator for Health Information Technology; Recommendations Received...

    Science.gov (United States)

    2011-02-25

    ... Information Technology to publish in the Federal Register and post on the internet all policy recommendations... for Health Information Technology (ONC), Department of Health and Human Services (HHS). ACTION: Notice. SUMMARY: Section 3002(e) of the Public Health Service Act, as amended by the Health Information Technology...

  16. Clinical case in digital technology for nursing students' learning: An integrative review.

    Science.gov (United States)

    Hara, Cristina Yuri Nakata; Aredes, Natália Del Angelo; Fonseca, Luciana Mara Monti; Silveira, Renata Cristina de Campos Pereira; Camargo, Rosangela Andrade Aukar; de Goes, Fernanda Santos Nogueira

    2016-03-01

    This review aimed to analyze the available evidences in literature about clinical case studies inserted in digital technologies for nursing education, characterizing the technology resources and cognitive, procedural and attitudinal learnings. Integrative review of literature with the following steps: development of the research problem, data collection, data extraction and critic evaluation, data analysis and interpretation and presentation of results. The research question was: how does the clinical case study inserted in educational digital technology collaborate for cognitive, attitudinal and procedural learning of nursing students? data bases LILACS, PUBMED, CINAHL and Scopus. the search resulted in 437 studies: 136 from LILACS, 122 from PUBMED, 104 from Scopus and 75 from CINAHL. Of these, 143 did not meet the including criteria, 93 were duplicated and four studies were unavailable. After analyzing all abstracts based on inclusion and exclusion criteria, there were selected 197 studies and after full text analysis the final sample resulted in 21 primary studies. Case study use in educational digital technologies allowed the students to build different types of learning: cognitive learning (n 16 studies), attitudinal learning (n=12 studies) and procedural learning (n=8 studies). It is possible to conclude that case studies can collaborate with the students to develop different learnings which can be built integrate, continuous, informative and formative, aiming integral formation and aligned to policies of formation in nursing, both national and international. Copyright © 2015 Elsevier Ltd. All rights reserved.

  17. Successful Teaching, Learning, and Use of Digital Mapping Technology in Mazvihwa, Rural Zimbabwe

    Science.gov (United States)

    Eitzel Solera, M. V.; Madzoro, S.; Solera, J.; Mhike Hove, E.; Changarara, A.; Ndlovu, D.; Chirindira, A.; Ndlovu, A.; Gwatipedza, S.; Mhizha, M.; Ndlovu, M.

    2016-12-01

    Participatory mapping is now a staple of community-based work around the world. Particularly for indigenous and rural peoples, it can represent a new avenue for environmental justice and can be a tool for culturally appropriate management of local ecosystems. We present a successful example of teaching and learning digital mapping technology in rural Zimbabwe. Our digital mapping project is part of the long-term community-based participatory research of The Muonde Trust in Mazvihwa, Zimbabwe. By gathering and distributing local knowledge and also bringing in visitors to share knowledge, Muonde has been able to spread relevant information among rural farmers. The authors were all members of Muonde or were Muonde's visitors, and were mentors and learners of digital mapping technologies at different times. Key successful characteristics of participants included patience, compassion, openness, perseverance, respect, and humility. Important mentoring strategies included: 1) instruction in Shona and in English, 2) locally relevant examples, assignments, and analogies motivated by real needs, 3) using a variety of teaching methods for different learning modalities, 4) building on and modifying familiar teaching methods, and 5) paying attention to the social and relational aspects of teaching and learning. The Muonde mapping team has used their new skills for a wide variety of purposes, including: identifying, discussing, and acting on emerging needs; using digital mapping for land-use and agropastoral planning; and using mapping as a tool for recording and telling important historical and cultural stories. Digital mapping has built self-confidence as well as providing employable skills and giving Muonde more visibility to other local and national non-governmental organizations, utility companies, and educational institutions. Digital mapping, as taught in a bottom-up, collaborative way, has proven to be both accessible and of enormous practical use to rural Zimbabweans.

  18. On the Technology Roadmap of Free-Viewpoint 3DTV Receivers

    NARCIS (Netherlands)

    Bondarev, E.; Miquel, R.; Imbert, M.; Zinger, S.; With, de P.H.N.

    2011-01-01

    This paper presents the architecture of an innovative 3DTV receiver system, enabling Free-ViewPoint (FVP) interpolation and rendering functionality. We outline the hardware architecture of the receiver, and specify how the design decisions address the extremely high processing requirements of the

  19. 78 FR 26777 - Technological Advisory Council Recommendation for Improving Receiver Performance

    Science.gov (United States)

    2013-05-08

    ... being able to make claims of harmful interference. The TAC white paper focuses on this definition of... the method used today relative to receiver standards and specifications, the use of multi-stakeholder... stakeholder groups, especially the developers of wireless transmitters, receivers and components? What are the...

  20. A review of existing and emerging digital technologies to combat the global trade in fake medicines.

    Science.gov (United States)

    Mackey, Tim K; Nayyar, Gaurvika

    2017-05-01

    The globalization of the pharmaceutical supply chain has introduced new challenges, chief among them, fighting the international criminal trade in fake medicines. As the manufacture, supply, and distribution of drugs becomes more complex, so does the need for innovative technology-based solutions to protect patients globally. Areas covered: We conducted a multidisciplinary review of the science/health, information technology, computer science, and general academic literature with the aim of identifying cutting-edge existing and emerging 'digital' solutions to combat fake medicines. Our review identified five distinct categories of technology including mobile, radio frequency identification, advanced computational methods, online verification, and blockchain technology. Expert opinion: Digital fake medicine solutions are unifying platforms that integrate different types of anti-counterfeiting technologies as complementary solutions, improve information sharing and data collection, and are designed to overcome existing barriers of adoption and implementation. Investment in this next generation technology is essential to ensure the future security and integrity of the global drug supply chain.

  1. Local markets and digital technologies: Among e-commerce and new forms of conviviality

    Directory of Open Access Journals (Sweden)

    Juan Robles

    2015-01-01

    Full Text Available Virtual storefronts, online sales, the enhancement of short and agroecological circuits of production through effective communication policies in social networks, are strategies that many small businesses are now using to value their traditional expertise, paradoxically based on proximity and direct treatment. this article analyzes the role of digital technologies in the re-signification and re-activation of small businesses and traditional markets. the use of digital technologies challenges Internet as an agent of deterritorialization and creation of global culture, in front of the presence of new forms of localization based on the emergence of new forms of conviviality, agroecology and healthy eating.

  2. Interferometric Reflectance Imaging Sensor (IRIS—A Platform Technology for Multiplexed Diagnostics and Digital Detection

    Directory of Open Access Journals (Sweden)

    Oguzhan Avci

    2015-07-01

    Full Text Available Over the last decade, the growing need in disease diagnostics has stimulated rapid development of new technologies with unprecedented capabilities. Recent emerging infectious diseases and epidemics have revealed the shortcomings of existing diagnostics tools, and the necessity for further improvements. Optical biosensors can lay the foundations for future generation diagnostics by providing means to detect biomarkers in a highly sensitive, specific, quantitative and multiplexed fashion. Here, we review an optical sensing technology, Interferometric Reflectance Imaging Sensor (IRIS, and the relevant features of this multifunctional platform for quantitative, label-free and dynamic detection. We discuss two distinct modalities for IRIS: (i low-magnification (ensemble biomolecular mass measurements and (ii high-magnification (digital detection of individual nanoparticles along with their applications, including label-free detection of multiplexed protein chips, measurement of single nucleotide polymorphism, quantification of transcription factor DNA binding, and high sensitivity digital sensing and characterization of nanoparticles and viruses.

  3. CYBER ADDICTION: THE ROLE OF EMOTIONS IN DEPENDENCE ON DIGITAL TECHNOLOGIES

    Directory of Open Access Journals (Sweden)

    Jefferson Cabral Azevedo

    2014-12-01

    Full Text Available This research apply concepts from different areas, aiming to provide a multicausal and dialogical perspective on the nosologic process of dependence upon digital technologies and the influences of motivational and emotional mechanisms on learning compulsive behaviors. The data is approached both qualitatively and quantitatively, since its analysis covers the conceptual factors obtained from literature review and the development of statistical results obtained from the questionnaires applied. This brief theoretical research pursues to reveal pathological behaviors in the use of digital technologies, especially in the actions of internet users in online social networks. The parameters of neuropsychology, psychology, psychiatry are combined with descriptions contained in the DSM V, Diagnostic and Statistical Manual of Mental Disorders, and the ICD 10, International Compendium of Diseases.

  4. Communications received from certain member states regarding guidelines for the export of nuclear material, equipment and technology

    International Nuclear Information System (INIS)

    1993-04-01

    The document reproduces the Note Verbale dated 8 February 1993 received by the Director General from the Permanent Mission of the Russian Federation to the International Organizations in Vienna, relating to the export of nuclear material, equipment or technology, in order to provide information on that Government's Guidelines for Nuclear Transfer

  5. Communications received from certain Member States regarding guidelines for the export of nuclear material, equipment and technology

    International Nuclear Information System (INIS)

    1993-01-01

    The document reproduces the Note Verbale dated 2 December 1992 received by the Director General from the Resident Representative of Argentina to the Agency relating to the export of nuclear material, equipment and technology in order to clarify parts of the Trigger List which is incorporated in Annex A to the Guidelines for Nuclear Transfers

  6. Communications received from certain Member States regarding guidelines for the export of nuclear material, equipment and technology

    International Nuclear Information System (INIS)

    1994-04-01

    The Director General has received notes verbales dated 27 August 1993 and 28 October 1993 from the Permanent Missions of Finland and Spain to the International Atomic Energy relating to the export of nuclear material, equipment and technology. The purpose of these notes verbales is to provide further information on those Governments' nuclear export policies and practices

  7. Communications received from certain member states regarding guidelines for the export of nuclear material, equipment and technology

    International Nuclear Information System (INIS)

    1993-04-01

    The document reproduces the text of a Note Verbale dated 5 March 1993 received by the Director General from the Ministry of Foreign Affairs of the Slovak Republic, in order to provide information on that Government's Guidelines for Nuclear Transfer and for Transfers of Nuclear - Related Dual-Use Equipment, Material and Related Technology

  8. Doing Age in a Digitized World—A Material Praxeology of Aging With Technology

    Directory of Open Access Journals (Sweden)

    Anna Wanka

    2018-04-01

    Full Text Available Digital technologies have gained vast relevance in postmodern societies and digital infrastructures are substantially integrated into the everyday lives of older people. This digitization is reframing the norms and practices of later life as well as the social construct of age itself. Despite the increasing amount of studies in the field of aging and technologies, it still lacks theorizing. This paper addresses this deficit, suggesting that the study of aging and technologies could profit from a comprehensive integration of theories from the sociology of aging, critical gerontology, and science-and-technology studies. We aim to make a theoretical contribution to this issue, asking: how is age being done in a digitized world? Applying a praxeological approach to aging and technologies, we firstly examine how theoretical and empirical work has constructed aging with technologies so far and identify its shortcomings. Some of this work so far lacks a proper consideration of social inequalities within these processes, whereas other studies lack a thorough consideration of materialities. Secondly, in an attempt to equally “praxeologize” and “materialize” the study of aging and technologies we develop a theoretical model that aims to overcome these shortcomings. In what we frame as a material praxeology of aging with technology, we are concerned with how age is being done through discursive formations, set into practice through social and material practices and involved in the (reproduction of social inequalities. Enriching a Bordieuan terminology of social fields with notions of non-human agency, this praxeology is founded on three assumptions: (1 Social fields constitute the contexts in which age as a social phenomenon is being done with and through technologies (2 Human and non-human agents are equally involved in this process (3 The actions of the involved agents emerge from an agency distributed among them, and are structured through the

  9. A 850 GHz SIS receiver employing silicon micro-machining technology

    Science.gov (United States)

    Kooi, J. W.; Pety, J.; Schaffer, P. L.; Phillips, T. G.; Bumble, B.; LeDuc, H. G.; Walker, C. K.

    1996-01-01

    A 850 GHz superconductor-insulator-superconductor (SIS) heterodyne receiver which uses a radiofrequency tuned niobium tunnel junction fabricated on a 1 micron thick silicon nitrate membrane, is reported. From video and heterodyne measurements, it was calculated that the niobium film loss in the radiofrequency matching network is about 6.8 dB at 822 GHz. These results are approximately a factor of two higher than the theoretical loss predicted by the Mattis-Bardeen theory in the extreme anomalous limit. The junction design and the receiver configuration are described, including the mixer block, the membrane construction and the cooled optics. The performance tests using a Fourier transform spectrometer to measure the response of the radiofrequency matching network, and the SIS simulations of the receiver response to cold and hot loads, the infrared noise contribution and the overall mixer conversion efficiency, are reported. It is concluded that the receiver response is limited by the absorption loss in the radiofrequency matching network.

  10. Open-source digital technologies for low-cost monitoring of historical constructions

    OpenAIRE

    Basto, Camilo; Pelà, Luca; Chacón Flores, Rolando Antonio

    2017-01-01

    This paper shows new possibilities of using novel, open-source, low-cost platforms for the structural health monitoring of heritage structures. The objective of the study is to present an assessment of increasingly available open-source digital modeling and fabrication technologies in order to identify the suitable counterparts of the typical components of a continuous static monitoring system for a historical construction. The results of the research include a simple case-study, which is pre...

  11. Application of the Digital Image Technology in the Visual Monitoring and Prediction of Shuttering Construction Safety

    Science.gov (United States)

    Ummin, Okumura; Tian, Han; Zhu, Haiyu; Liu, Fuqiang

    2018-03-01

    Construction safety has always been the first priority in construction process. The common safety problem is the instability of the template support. In order to solve this problem, the digital image measurement technology has been contrived to support real-time monitoring system which can be triggered if the deformation value exceed the specified range. Thus the economic loss could be reduced to the lowest level.

  12. Investigating Parents' Attitudes towards Digital Technology Use in Early Childhood: A Case Study from Croatia

    OpenAIRE

    Nives MIKELIĆ PRERADOVIĆ; Gordana LEŠIN; Mirjana ŠAGUD

    2016-01-01

    The aim of this study is to investigate perceptions of parents in Croatia towards advantages and disadvantages of computer use in general as well as their children's computer use and to reveal parents' concerns and opinions about digital technology (DT) education in kindergarten. The paper reports on research findings from one of the large public kindergartens in the capital city of Croatia. A total of 152 parents of the children aged 3 to 7 enrolled at this early childhood education institut...

  13. Exploring virtual reality technology and the Oculus Rift for the examination of digital pathology slides

    Directory of Open Access Journals (Sweden)

    Navid Farahani

    2016-01-01

    Full Text Available Background: Digital slides obtained from whole slide imaging (WSI platforms are typically viewed in two dimensions using desktop personal computer monitors or more recently on mobile devices. To the best of our knowledge, we are not aware of any studies viewing digital pathology slides in a virtual reality (VR environment. VR technology enables users to be artificially immersed in and interact with a computer-simulated world. Oculus Rift is among the world′s first consumer-targeted VR headsets, intended primarily for enhanced gaming. Our aim was to explore the use of the Oculus Rift for examining digital pathology slides in a VR environment. Methods: An Oculus Rift Development Kit 2 (DK2 was connected to a 64-bit computer running Virtual Desktop software. Glass slides from twenty randomly selected lymph node cases (ten with benign and ten malignant diagnoses were digitized using a WSI scanner. Three pathologists reviewed these digital slides on a 27-inch 5K display and with the Oculus Rift after a 2-week washout period. Recorded endpoints included concordance of final diagnoses and time required to examine slides. The pathologists also rated their ease of navigation, image quality, and diagnostic confidence for both modalities. Results: There was 90% diagnostic concordance when reviewing WSI using a 5K display and Oculus Rift. The time required to examine digital pathology slides on the 5K display averaged 39 s (range 10-120 s, compared to 62 s with the Oculus Rift (range 15-270 s. All pathologists confirmed that digital pathology slides were easily viewable in a VR environment. The ratings for image quality and diagnostic confidence were higher when using the 5K display. Conclusion: Using the Oculus Rift DK2 to view and navigate pathology whole slide images in a virtual environment is feasible for diagnostic purposes. However, image resolution using the Oculus Rift device was limited. Interactive VR technologies such as the Oculus Rift are

  14. Professional Development and Use of Digital Technologies by Science Teachers: a Review of Theoretical Frameworks

    Science.gov (United States)

    Fernandes, Geraldo W. Rocha; Rodrigues, António M.; Ferreira, Carlos Alberto

    2018-03-01

    This article aims to characterise the research on science teachers' professional development programs that support the use of Information and Communication Technologies (ICTs) and the main trends concerning the theoretical frameworks (theoretical foundation, literature review or background) that underpin these studies. Through a systematic review of the literature, 76 articles were found and divided into two axes on training science teachers and the use of digital technologies with their categories. The first axis (characterisation of articles) presents the category key features that characterise the articles selected (major subjects, training and actions for the professional development and major ICT tools and digital resources). The second axis (trends of theoretical frameworks) has three categories organised in theoretical frameworks that emphasise the following: (a) the digital technologies, (b) prospects of curricular renewal and (c) cognitive processes. It also characterised a group of articles with theoretical frameworks that contain multiple elements without deepening them or that even lack a theoretical framework that supports the studies. In this review, we found that many professional development programs for teachers still use inadequate strategies for bringing about change in teacher practices. New professional development proposals are emerging with the objective of minimising such difficulties and this analysis could be a helpful tool to restructure those proposals.

  15. Virtual reality and interactive digital game technology: new tools to address obesity and diabetes.

    Science.gov (United States)

    Skip Rizzo, Albert; Lange, Belinda; Suma, Evan A; Bolas, Mark

    2011-03-01

    The convergence of the exponential advances in virtual reality (VR)-enabling technologies with a growing body of clinical research and experience has fueled the evolution of the discipline of clinical VR. This article begins with a brief overview of methods for producing and delivering VR environments that can be accessed by users for a range of clinical health conditions. Interactive digital games and new forms of natural movement-based interface devices are also discussed in the context of the emerging area of exergaming, along with some of the early results from studies of energy expenditure during the use of these systems. While these results suggest that playing currently available active exergames uses significantly more energy than sedentary activities and is equivalent to a brisk walk, these activities do not reach the level of intensity that would match playing the actual sport, nor do they deliver the recommended daily amount of exercise for children. However, these results provide some support for the use of digital exergames using the current state of technology as a complement to, rather than a replacement, for regular exercise. This may change in the future as new advances in novel full-body interaction systems for providing vigorous interaction with digital games are expected to drive the creation of engaging, low-cost interactive game-based applications designed to increase exercise participation in persons at risk for obesity. © 2011 Diabetes Technology Society.

  16. Using SecondLife Online Virtual World Technology to Introduce Educators to the Digital Culture

    Science.gov (United States)

    Jamison, John

    2008-01-01

    The rapidly changing culture resulting from new technologies and digital gaming has created an increasing language gap between traditional educators and today's learners (Natkin, 2006; Seely-Brown, 2000). This study seeks to use the online virtual world of SecondLife.com as a tool to introduce educators to this new environment for learning. This study observes the activities and perceptions of a group of educators given unscripted access to this virtual environment. The results 'suggest that although serious technology limitations do currently exist, the potential of this virtual world environment as a learning experience for educators is strong.

  17. Teacher training and the use of digital information and communication technologies in mathematics classes in basic

    Directory of Open Access Journals (Sweden)

    Danilo Augusto Ferreira de Jesuz

    2018-01-01

    Full Text Available The current article has the objective of presenting results of a proposal of docent formation for the use digital technologies of information and communication inside mathematics classes, by using software GeoGebra. The proposal is part of an extension project, developed in the Federal Institute of Paraná at Jaguariaíva. We highlight that the project is revealed interesting, as it promotes formative action, articulating scientific and technological knowledges and gives opportunity of discussion moments about pedagogical strategies and changes of experience to the use of the software inside classes to the students.

  18. English in the digital age information and communications technology (ICT) and the teaching of English

    CERN Document Server

    Goodwyn, Andrew

    1999-01-01

    New communications technology has been a boon to teaching and learning subjects of English, from reading and writing to literature such as Shakespeare. This book explores the ways that information and communications technology, or ICT, can be employed in teaching English and enriching the abilities of students. What are the advantages of ICT, and what are some of the concerns? Contributors from Europe, Australia, and North America address the use of media in teaching, from video, film, and audiotape to computer games and online resources. English in the Digital Age surveys the ways ICT is pres

  19. The application of digital medical 3D printing technology on tumor operation

    Science.gov (United States)

    Chen, Jimin; Jiang, Yijian; Li, Yangsheng

    2016-04-01

    Digital medical 3D printing technology is a new hi-tech which combines traditional medical and digital design, computer science, bio technology and 3D print technology. At the present time there are four levels application: The printed 3D model is the first and simple application. The surgery makes use of the model to plan the processing before operation. The second is customized operation tools such as implant guide. It helps doctor to operate with special tools rather than the normal medical tools. The third level application of 3D printing in medical area is to print artificial bones or teeth to implant into human body. The big challenge is the fourth level which is to print organs with 3D printing technology. In this paper we introduced an application of 3D printing technology in tumor operation. We use 3D printing to print guide for invasion operation. Puncture needles were guided by printed guide in face tumors operation. It is concluded that this new type guide is dominantly advantageous.

  20. Empowering Children with Adaptive Technology Skills: Careful Engagement in the Digital Information Age

    Directory of Open Access Journals (Sweden)

    Miftachul HUDA

    2017-03-01

    Full Text Available The technological advancement occurring in the world today has a potency to create positive and negative side effects especially on children. The positive side may entail increased empathy and acceptance of diversity through modelling the prosocial behaviours, while the negative can be manifest in aggressive behaviour, risky sexual behaviour, and substance abuse. These challenges pose a need to draw a particular attention to children’s rights of protection and care in relation to the use of technology. This paper sought to critically explore the way in which children adapt technology skills and the way they respond towards media influences. The findings revealed that the adaptive technology skills are needed in providing a considerable guidance for child protection and careful engagement towards digital information as part of their rights to natural growth and development.

  1. Empowering children with adaptive technology skills: Careful engagement in the digital ınformation age

    Directory of Open Access Journals (Sweden)

    Miftachul Huda

    2017-03-01

    Full Text Available The technological advancement occurring in the world today has a potency to create positive and negative side effects especially on children. The positive side may entail increased empathy and acceptance of diversity through modelling the prosocial behaviours, while the negative can be manifest in aggressive behaviour, risky sexual behaviour, and substance abuse. These challenges pose a need to draw a particular attention to children’s rights of protection and care in relation to the use of technology. This paper sought to critically explore the way in which children adapt technology skills and the way they respond towards media influences. The findings revealed that the adaptive technology skills are needed in providing a considerable guidance for child protection and careful engagement towards digital information as part of their rights to natural growth and development.

  2. Telling Tales with Technology: Digital Storytelling Is a New Twist on the Ancient Art of the Oral Narrative

    Science.gov (United States)

    Salpeter, Judy

    2005-01-01

    This article describes the history and events behind the development and progress of the San Francisco Digital Center--now known as the Center for Digital Storytelling (CDS). First-hand accounts and reactions from local educators and the director of technology for the county that houses CDS are provided. The article also demonstrates how digital…

  3. Effects on the Technological Pedagogical Content Knowledge of Early Childhood Teacher Candidates Using Digital Storytelling to Teach Mathematics

    Science.gov (United States)

    Kildan, Abdullah Oguzhan; Incikabi, Lutfi

    2015-01-01

    This study aimed to present early childhood teacher candidates' experiences preparing digital stories and to reveal the resulting changes, if any, in self-reported technological pedagogical content knowledge (TPACK). This study was quasi-experimental and indicated that teacher candidates' evaluations of digital storytelling were affected by their…

  4. Endangered Literacies? Affordances of Paper-Based Literacy in Medical Practice and Its Persistence in the Transition to Digital Technology

    Science.gov (United States)

    Sterponi, Laura; Zucchermaglio, Cristina; Alby, Francesca; Fatigante, Marilena

    2017-01-01

    Under the rapid advances of digital technology, traditional paper-based forms of reading and writing are steadily giving way to digital-based literacies, in theory as well as in application. Drawing on a study of literacy in a medical workplace context, this article examines critically the shift toward computer-mediated textual practices. While a…

  5. Using feedback through digital technology to disrupt and change habitual behavior : a critical review of current literature

    NARCIS (Netherlands)

    Sander Hermsen; Reint-Jan Renes; Jeana Frost; Peter Kerkhof

    2016-01-01

    Habitual behavior is often hard to change because of a lack of self-monitoring skills. Digital technologies offer an unprecedented chance to facilitate self-monitoring by delivering feedback on undesired habitual behavior. This review analyzed the results of 72 studies in which feedback from digital

  6. Benefits of Superconductor Digital-RF Transceiver Technology to Future Wireless Systems

    National Research Council Canada - National Science Library

    Gupta, Deepnarayan; Kadin, Alan M; Mukhanov, Oleg A; Rosa, Jack; Nicholson, David

    2006-01-01

    ...) digital filters have already been demonstrated by HYPRES. This will enable broadband digitization of the incoming RF waveform directly, leading to true digital channelization under full software control...

  7. Long-range high-speed visible light communication system over 100-m outdoor transmission utilizing receiver diversity technology

    Science.gov (United States)

    Wang, Yiguang; Huang, Xingxing; Shi, Jianyang; Wang, Yuan-quan; Chi, Nan

    2016-05-01

    Visible light communication (VLC) has no doubt become a promising candidate for future wireless communications due to the increasing trends in the usage of light-emitting diodes (LEDs). In addition to indoor high-speed wireless access and positioning applications, VLC usage in outdoor scenarios, such as vehicle networks and intelligent transportation systems, are also attracting significant interest. However, the complex outdoor environment and ambient noise are the key challenges for long-range high-speed VLC outdoor applications. To improve system performance and transmission distance, we propose to use receiver diversity technology in an outdoor VLC system. Maximal ratio combining-based receiver diversity technology is utilized in two receivers to achieve the maximal signal-to-noise ratio. A 400-Mb/s VLC transmission using a phosphor-based white LED and a 1-Gb/s wavelength division multiplexing VLC transmission using a red-green-blue LED are both successfully achieved over a 100-m outdoor distance with the bit error rate below the 7% forward error correction limit of 3.8×10-3. To the best of our knowledge, this is the highest data rate at 100-m outdoor VLC transmission ever achieved. The experimental results clearly prove the benefit and feasibility of receiver diversity technology for long-range high-speed outdoor VLC systems.

  8. Using Digital Technology to Engage and Communicate with Patients: A Survey of Patient Attitudes.

    Science.gov (United States)

    Jenssen, Brian P; Mitra, Nandita; Shah, Anand; Wan, Fei; Grande, David

    2016-01-01

    As primary care moves toward a system of population health management, providers will need to engage patients outside traditional office-based interactions. We assessed patient attitudes regarding technology use to communicate with their primary care team or to engage with other patients outside typical office settings. Design/Participants/Main Measures We conducted a national survey using GfK KnowledgePanel(®) to examine attitudes on the use of digital technology (email, text messaging, and social media such as Facebook and Twitter) to communicate with primary care teams about health behavior goals and test results. We also assessed attitudes toward the use of digital technologies to engage with other patients in activities such as peer coaching. Of the 5119 panel members invited to participate, 3336 completed the survey (response rate, 65.2 %). Among respondents, more than half (58 %) reported using Facebook, and nearly two-thirds (64.1 %) used text messaging. Overall, few participants were willing to communicate about health goals via social media (3.1 %) or text messaging (13.3 %), compared to email (48.8 %) or phone (75.5 %) (results were similar for communication about test results). Among those that used text messaging, race/ethnicity was the only factor independently associated with greater support for text messaging [African American (OR 1.44; 95 % CI, 1.01-2.06) and Hispanic (OR 1.8; 95 % CI, 1.25-2.59)] in multivariate models. Participants interested in engaging in peer coaching through Facebook (11.7 %) were more likely to be younger (p digital technology such as text messaging and social media, few participants supported using these tools for communicating with their physicians' practice. Participants were most supportive of using email for communication. Contrary to previous studies, among users of technology, low socioeconomic status and racial/ethnic minorities were equally or more likely to support use.

  9. The application of digital surgical diagnosis and treatment technology: a promising strategy for surgical reconstruction of craniomaxillofacial defect and deformity.

    Science.gov (United States)

    Wang, Li-ya; Du, Hong-ming; Zhang, Gang; Tang, Wei; Liu, Lei; Jing, Wei; Long, Jie

    2011-12-01

    The craniomaxillofacial defect and deformity always leads to serious dysfunction in mastication and facial contour damage, significantly reducing patients' quality of life. However, surgical reconstruction of a craniomaxillofacial hard tissue defect or deformity is extremely complex and often does not result in desired facial morphology. Improving the result for patients with craniomaxillofacial defect and deformity remains a challenge for surgeons. Using digital technology for surgical diagnosis and treatment may help solve this problem. Computer-assisted surgical technology and surgical navigation technology are included in the accurate digital diagnosis and treatment system we propose. These technologies will increase the accuracy of the design of the operation plan. In addition, the intraoperative real-time navigating location system controlling the robotic arm or advanced intelligent robot will provide accurate, individualized surgical treatment for patients. Here we propose the hypothesis that a digital surgical diagnosis and treatment technology may provide a new approach for precise surgical reconstruction of complicated craniomaxillofacial defect and deformity. Our hypothesis involves modern digital surgery, a three-dimensional navigation surgery system and modern digital imaging technology, and our key aim is to establish a technological platform for customized digital surgical design and surgical navigation for craniomaxillofacial defect and deformity. If the hypothesis is proven practical, this novel therapeutic approach could improve the result of surgical reconstruction for craniomaxillofacial defect and deformity for many patients. Copyright © 2011 Elsevier Ltd. All rights reserved.

  10. Investigation of Virtual Digital Human and Robotic Device Technology Merger Complimented by Haptics and Autostereoscopic Displays, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — As expected, the STTR Phase I investigation confirmed that the Digital Virtual Human (DVH) and Robonaut technologies can be merged, and that haptic and...

  11. An Analytic Creativity Assessment Scale for Digital Game Story Design: Construct Validity, Internal Consistency and Interrater Reliability

    Science.gov (United States)

    Chuang, Tsung-Yen; Huang, Yun-Hsuan

    2015-01-01

    Mobile technology has rapidly made digital games a popular entertainment to this digital generation, and thus digital game design received considerable attention in both the game industry and design education. Digital game design involves diverse dimensions in which digital game story design (DGSD) particularly attracts our interest, as the…

  12. COMBATING DIGITAL PIRACY IN NIGERIA. AN ANALYSIS OF TECHNOLOGICAL PROTECTIVE MEASURES AND RIGHTS MANAGEMENT INFORMATION UNDER THE COPYRIGHT BILL

    OpenAIRE

    Kuti, Aishat Obadunni

    2016-01-01

    The adoption of digital technologies and creation of global internet infrastructure for the vast array of companies and individuals offering products and services that leverage its connectivity has transformed our world over the past two decades. The Internet has grown from a resource platform for individuals to an essential omnichannel medium for more than 2 billion users worldwide and with each facet of growth comes unprecedented challenges. The impact of digital technology on Nigerian crea...

  13. Review: Michael Crandall & Karen E. Fisher (Eds) Digital Inclusion: Measuring the Impact of Information and Community Technology

    DEFF Research Database (Denmark)

    Pors, Niels Ole

    2010-01-01

    Review: Michael Crandall & Karen E. Fisher (Eds) Digital Inclusion: Measuring the Impact of Information and Community Technology. Medford. Information Today. ASIS&T Monographs, 2009. 185 pages. $ 59.50. ISBN 978-1-57387-373-4......Review: Michael Crandall & Karen E. Fisher (Eds) Digital Inclusion: Measuring the Impact of Information and Community Technology. Medford. Information Today. ASIS&T Monographs, 2009. 185 pages. $ 59.50. ISBN 978-1-57387-373-4...

  14. Advanced digital computers, controls, and automation technologies for power plants: Proceedings

    International Nuclear Information System (INIS)

    Bhatt, S.C.

    1992-08-01

    This document is a compilation of the papers that were presented at an EPRI workshop on Advances in Computers, Controls, and Automation Technologies for Power Plants. The workshop, sponsored by EPRI's Nuclear Power Division, took place February 1992. It was attended by 157 representatives from electric utilities, equipment manufacturers, engineering consulting organizations, universities, national laboratories, government agencies and international utilities. More than 40% of the attendees were from utilities representing the majority group. There were 30% attendees from equipment manufacturers and the engineering consulting organizations. The participants from government agencies, universities, and national laboratories were about 10% each. The workshop included a keynote address, 35 technical papers, and vendor's equipment demonstrations. The technical papers described the state-of-the-art in the areas of recent utility digital upgrades such as digital feedwater controllers, steam generator level controllers, integrated plant computer systems, computer aided diagnostics, automated testing and surveillance and other applications. A group of technical papers presented the ongoing B ampersand W PWR integrated plant control system prototype developments with the triple redundant advanced digital control system. Several international papers from France, Japan and U.K. presented their programs on advance power plant design and applications. Significant advances in the control and automation technologies such as adaptive controls, self-tuning methods, neural networks and expert systems were presented by developers, universities, and national laboratories. Individual papers are indexed separately

  15. Digital imaging information technology for biospeckle activity assessment relative to bacteria and parasites.

    Science.gov (United States)

    Ramírez-Miquet, Evelio E; Cabrera, Humberto; Grassi, Hilda C; de J Andrades, Efrén; Otero, Isabel; Rodríguez, Dania; Darias, Juan G

    2017-08-01

    This paper reports on the biospeckle processing of biological activity using a visualization scheme based upon the digital imaging information technology. Activity relative to bacterial growth in agar plates and to parasites affected by a drug is monitored via the speckle patterns generated by a coherent source incident on the microorganisms. We present experimental results to demonstrate the potential application of this methodology for following the activity in time. The digital imaging information technology is an alternative visualization enabling the study of speckle dynamics, which is correlated to the activity of bacteria and parasites. In this method, the changes in Red-Green-Blue (RGB) color component density are considered as markers of the growth of bacteria and parasites motility in presence of a drug. The RGB data was used to generate a two-dimensional surface plot allowing an analysis of color distribution on the speckle images. The proposed visualization is compared to the outcomes of the generalized differences and the temporal difference. A quantification of the activity is performed using a parameterization of the temporal difference method. The adopted digital image processing technique has been found suitable to monitor motility and morphological changes in the bacterial population over time and to detect and distinguish a short term drug action on parasites.

  16. Virtual Reality and Interactive Digital Game Technology: New Tools to Address Obesity and Diabetes

    Science.gov (United States)

    “Skip” Rizzo, Albert; Lange, Belinda; Suma, Evan A; Bolas, Mark

    2011-01-01

    The convergence of the exponential advances in virtual reality (VR)-enabling technologies with a growing body of clinical research and experience has fueled the evolution of the discipline of clinical VR. This article begins with a brief overview of methods for producing and delivering VR environments that can be accessed by users for a range of clinical health conditions. Interactive digital games and new forms of natural movement-based interface devices are also discussed in the context of the emerging area of exergaming, along with some of the early results from studies of energy expenditure during the use of these systems. While these results suggest that playing currently available active exergames uses significantly more energy than sedentary activities and is equivalent to a brisk walk, these activities do not reach the level of intensity that would match playing the actual sport, nor do they deliver the recommended daily amount of exercise for children. However, these results provide some support for the use of digital exergames using the current state of technology as a complement to, rather than a replacement, for regular exercise. This may change in the future as new advances in novel full-body interaction systems for providing vigorous interaction with digital games are expected to drive the creation of engaging, low-cost interactive game-based applications designed to increase exercise participation in persons at risk for obesity. PMID:21527091

  17. Communications receivers principles and design

    CERN Document Server

    Rohde, Ulrich L; Zahnd, Hans

    2017-01-01

    This thoroughly updated guide offers comprehensive explanations of the science behind today’s radio receivers along with practical guidance on designing, constructing, and maintaining real-world communications systems. You will explore system planning, antennas and antenna coupling, amplifiers and gain control, filters, mixers, demodulation, digital communication, and the latest software defined radio (SDR) technology. Written by a team of telecommunication experts, Communications Receivers: Principles and Design, Fourth Edition, features technical illustrations, schematic diagrams, and detailed examples. Coverage includes: • Basic radio considerations • Radio receiver characteristics • Receiver system planning • Receiver implementation considerations • RF and baseband techniques for Software-Defined Radios • Transceiver SDR considerations • Antennas and antenna coupling • Mixers • Frequency sources and control • Ancillary receiver circuits • Performance measurement

  18. Training in remote monitoring technology. Digital camera module-14(DCM-14)

    International Nuclear Information System (INIS)

    Caskey, Susan

    2006-01-01

    The DCM-14 (Digital Camera Module) is the backbone of current IAEA remote monitoring surveillance systems. The control module is programmable with features for encryption, authentication, image compression and scene change detection. It can take periodic or triggered images under a variety of time sequences. This training session covered the DCM-14 features and related programming in DCMSET. It also described the processes for receiving, archiving and backing up the camera images using DCMPOLL and GEMINI software. Setting up a DCM-14 camera controller in the configuration of the remote monitoring system at Joyo formed an exercise. (author)

  19. Rethinking Teaching in STEM Education in a Community College: Role of Instructional Consultation and Digital Technologies

    Science.gov (United States)

    Kurland, Shelley Chih-Hsian

    Community college faculty members educate almost half of all U.S. undergraduates, who are often more diverse and more academically underprepared when compared to undergraduate students who attend four-year institutions. In addition, faculty members in community colleges are facing increased accountability for meeting student learning outcomes, expectations to adjust their teaching practices to include active learning practices, and expectations to incorporate more technologies into the classroom. Faculty developers are one of the support structures that faculty members can look to in order to meet those challenges. A survey of literature in faculty development suggests that instructional consultation can play an important role in shaping and transforming teaching practices. Hence, this action research study examined my work using instructional consulting with four full-time STEM faculty colleagues in order to examine and shape their teaching practices with and without the use of digital technologies. The two foci of the research, examining shifts in faculty participants' teaching practices, and my instructional consulting practices, were informed by Thomas and Brown's (2011) social view of learning and the concept of teaching and learning in a "co-learning" environment. Two dominant factors emerged regarding faculty participants' shift in teaching practices. These factors concerned: 1) the perception of control and 2) individual faculty participant's comfort level, expectations, and readiness. In addition to these two dominant factors, the instructional consultation process also supported a range of shifts in either mindset and/or teaching practices. My analysis showed that the use of digital technologies was not an essential factor in shifting faculty participant mindset and/or teaching practices, instead digital technologies were used to enhance the teaching process and students' learning experiences.

  20. Norwich Technologies' Advanced Low-Cost Receivers for Parabolic Troughs

    Energy Technology Data Exchange (ETDEWEB)

    Stettenheim, Joel [Norwich Technologies, White River Junction, VT (United States); McBride, Troy O. [Norwich Technologies, White River Junction, VT (United States); Brambles, Oliver J. [Norwich Technologies, White River Junction, VT (United States); Cashin, Emil A. [Norwich Technologies, White River Junction, VT (United States)

    2013-12-31

    This report summarizes the successful results of our SunShot project, Advanced Low-Cost Receivers for Parabolic Troughs. With a limited budget of $252K and in only 12 months, we have (1) developed validated optical and thermal models and completed rigorous optimization analysis to identify key performance characteristics as part of developing first-generation laboratory prototype designs, (2) built optical and thermal laboratory prototypes and test systems with associated innovative testing protocols, and (3) performed extensive statistically relevant testing. We have produced fully functioning optical and thermal prototypes and accurate, validated models shown to capture important underlying physical mechanisms. The test results from the first-generation prototype establish performance exceeding the FOA requirement of thermal efficiency >90% for a CSP receiver while delivering an exit fluid temperature of > 650 °C and a cost < $150/kWth. Our vacuum-free SunTrap receiver design provides improvements over conventional vacuum-tube collectors, allowing dramatic reductions in thermal losses at high operating temperature.