Results 121 to 130 of about 576,785 (363)
Is America Exporting Misguided Telecommunications Policy? The U.S.-Japan Telecom Trade Negotiations and Beyond [PDF]
, 2003 Global telecommunications markets have traditionally been closed to foreign trade and investment. Recent World Trade Organization negotiations resulted in a Basic Telecommunications agreement that sought to construct a multilateral framework to reverse ...
Adam D. Thierer, Motohiro Tsuchiya
core
Advanced Photonics Research, EarlyView.Optical wireless communications (OWCs) provide a promising alternative to spectrum‐congested microwave wireless communications. Recently, the use of metasurfaces with sub‐wavelength features for dynamic beam steering, beam manipulation, and spatial or optical‐angular‐momentum mode generation, conversion, and multiplexing in OWCs is proposed and ...
Ke Wang +7 more
wiley +1 more source
Sustainability in Telecommunication Networks and Key Value Indicators: a Survey [PDF]
arXivTelecommunication technologies are important enablers for both digital and ecological transitions. By offering digital alternatives to traditional modes of transportation and communication, they help reduce carbon footprints while improving access to fundamental services.
arxiv
Advanced Sensor Research, EarlyView.This work overcomes long‐standing crucial technical difficulties in miniaturizing micro‐wave detectors, caused by the longer‐wavelength diffraction limit, with carbon nanotube (CNT) film photo‐thermoelectric sensors. The CNT film sensor exhibits sensitive micro‐wave detection operations with signal‐to‐noise ratios over 1400 at compact device sizes ...
Qi Zhang +11 more
wiley +1 more source
Optimization in telecommunication networks [PDF]
Statistica Neerlandica, 2005 Network design and network synthesis have been the classical optimization problems in telecommunication for a long time. In the recent past, there have been many technological developments such as digitization of information, optical networks, Internet, and wireless networks. These developments have led to a series of new optimization problems.
openaire +4 more sources
Wavelets transformation: A new method for signal analysis
Vojnotehnički Glasnik, 2000 In this paper a new method for signal analysis - wavelets transformation is presented. We consider basic theoretical assumptions and mathematical foundations, signal representation in time-frequency domain, fast algorithms for practical implementation ...
Branislav Todorović , Sandra Erić
doaj +1 more source
Competition and Globalization Brazilian Telecommunications Policy at Crossroads [PDF]
arXiv, 2001 The current pattern of competition in the Brazilian telecommunications market was defined by a regulatory reform implemented in the second half of the nineties. The telecommunications regulatory reform discussed in the paper promoted the privatization of Telebras System and fostered competition in the Brazilian market under the stricted supervision of ...
arxiv
Ultra‐low LOD H2O2 Sensor Based on Synergistic Nernst Potential Effect
Advanced Science, EarlyView.Due to the synergistic effect of ENernst,H2O2${E}_{\mathrm{Nernst},\ {\mathrm{H}}_{2}{\mathrm{O}}_{2}}$ and ENernst,H+${E}_{\mathrm{Nernst},\ {\mathrm{H}}^{+}}$, the proposed sensors in this study can achieve ultralow H2O2 detection limit as low as 1.8 × 10−12 M based on the stacked PEDOT: BTB/PEDOT: PSS semiconducting layer.
Zhaoqun Wang +12 more
wiley +1 more source