Mostrando 621 - 640 Resultados de 1,967 Para Buscar '"Telecommunications"', tiempo de consulta: 0.13s Limitar resultados
  1. 621
    “…We analyze two large datasets from technological networks with location and social data: user location records from an online location-based social networking service, and anonymized telecommunications data from a European cellphone operator, in order to investigate the differences between individual and group behavior with respect to physical location. …”
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  2. 622
    “…Exposure of common Allium fistulosum to mercury and tellurium salts under ambient conditions resulted in the expulsion of crystalline, non-passivated HgTe quantum dots that exhibited emissive characteristics in the near-infrared spectral region, a wavelength range that is important in telecommunications and solar energy conversion.…”
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  3. 623
    por Rose, A. H., Wang, C.-M., Dyer, S. D.
    Publicado 2000
    “…We compared the measurement of center wavelength, bandwidth, isolation, minimum relative transmittance, and relative group delay among several grating types in two industry groups, telecommunications and sensors. We found that the state of fiber Bragg grating metrology needs improvement in most areas. …”
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  4. 624
    “…Non-equispaced Fast Fourier transform (NFFT) is a very important algorithm in several technological and scientific areas such as synthetic aperture radar, computational photography, medical imaging, telecommunications, seismic analysis and so on. However, its computation complexity is high. …”
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  5. 625
    “…Moreover, advances in computing and telecommunications have also broadened the range of activities in which drones may be used. …”
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  6. 626
    “…Our findings, which are based on a sample of 308 employees working for a state-owned telecommunications company in China, indicate that ethical leadership promotes employees’ voice behavior through enhanced LMX, which also leads to greater feelings of psychological safety and psychological empowerment. …”
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  7. 627
    “…This presents data collected from 63 large Brazilian companies organized as follows: Industrial Goods (2); Construction and Transportation (12); Cyclical Consumption (3); Non-Cyclical Consumption (3); Financial and Other (6); Basic Materials (4); Information Technology (2); Telecommunications (2); and Electricity (29). These data were collected by the questionnaire administered by the São Paulo Stock Exchange (Brazil) about internal factors of Corporate Social Responsibility (CSR) of an Environmental Management System (EMS) and the reduction of emission of greenhouse gases and economic performance. …”
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  8. 628
    “…The well-known propagation models FSPL (Free-Space Path Loss), two-ray, COST235, Weissberger, ITU-R (International Telecommunications Union—Radiocommunication Sector), FITU-R (Fitted ITU-R), offer values with an error percentage higher than 30% in the 2.4 GHz band in relation to those measured in field tests. …”
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  9. 629
    por McGuire, Coreen Anne
    Publicado 2019
    “…Linkage between telephony and hearing has long been noted by historians of sound and science, and Post Office engineers in the inter-war period had considerable expertise in both telecommunications and hearing assistive devices. This article first demonstrates how the inter-war Post Office categorised different kinds of hearing loss through standardizing the capacity of its users to engage effectively with the telephone, and secondly investigates how successful it was in doing so. …”
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  10. 630
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  12. 632
    “…Although several articles have now addressed the key issues in telecommunications and medical education, none have described the digital or virtual functionality of a professional society disease focused panel (DFP) or inter-institutional collaborations. …”
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  13. 633
    “…Harnessing cost-efficient printable semiconductor materials as near-infrared (NIR) emitters in light-emitting diodes (LEDs) is extremely attractive for sensing and diagnostics, telecommunications, and biomedical sciences. However, the most efficient NIR LEDs suitable for printable electronics rely on emissive materials containing precious transition metal ions (such as platinum), which have triggered concerns about their poor biocompatibility and sustainability. …”
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  14. 634
    por Drude, Kenneth P.
    Publicado 2021
    “…Mandates for social distancing during the pandemic necessitated urgently changing from in-person forms of education, training, supervision, and service delivery to uses of telecommunications, often with minimal preparation. This column on telebehavioral health education, training, supervision, and competencies presents some examples of how organizations, programs, and practitioners generally successfully adapted and responded to these sudden circumstances. …”
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  15. 635
    “…However, the point estimates of the elasticity of distance are significantly higher in magnitude in Arts and Health, while distance matters much less for Telecommunications and Information Technology. We also find that the elasticity of trade with respect to exporter and importer gross domestic product is highly industry specific. …”
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  16. 636
    “…With the outbreak of COVID-19 across Europe, anonymized telecommunications data provides a key insight into population level mobility and assessing the impact and effectiveness of containment measures. …”
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  17. 637
    por Rabe, Mareike
    Publicado 2022
    “…The use of telehealth is becoming a prevalent feature in clinical practice worldwide, partly because of advances in medical and telecommunications technology. The coronavirus disease 2019 (COVID-19) pandemic has been a key driver in justifying the accelerated use of telehealth, leading to healthcare practitioners (HCPs) utilising virtual consultations more avidly. …”
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  18. 638
    “…This is needed for the modeling and design of communication networks (CNs) consisting of integrated telecommunications and computer networks (ITCN). Simulation models require a precise definition of network traffic communication. …”
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  19. 639
    “…These characteristics in combination with a high Q factor and dimensions compatible with standard CMOS manufacturing techniques provide a step forward for the production of devices with applications in multiband telecommunications and wireless power transfer and in the IoT field.…”
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  20. 640
    “…Recent advancements in the field of telecommunications, medical imaging and signal processing deal with signals that are inherently time varying, nonlinear and complex-valued. …”
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