Results 51 to 60 of about 66,903 (234)

Infrastructure and Growth: Empirical Evidence [PDF]

, 2009
Investment in network infrastructure can boost long-term economic growth in OECD countries. Moreover, infrastructure investment can have a positive effect on growth that goes beyond the effect of the capital stock because of economies of scale, the ...
Egert, Balazs, Kozluk, Tomasz, Sutherland, Douglas   +2 more
core  

Fuzzy based load and energy aware multipath routing for mobile ad hoc networks [PDF]

, 2015
Routing is a challenging task in Mobile Ad hoc Networks (MANET) due to their dynamic topology and lack of central administration. As a consequence of un-predictable topology changes of such networks, routing protocols employed need to accurately capture ...
Ali, M., Shahrabi, A., Stewart, B.G., Vallavaraj, A.   +3 more
core   +3 more sources

Switchable Terahertz Beam Steering with Near‐Perfect Ordinary Transmission

Advanced Photonics Research, EarlyView.
This study introduces a reconfigurable metasurface that enables switchable terahertz beam steering upon actuation by a global temperature change. At room temperature, it achieves a true “OFF” state with nearly 100% transmission, behaving as if the metasurface is not present, thereby not distorting incoming light.
Zhixiang Huang, Jie Ji, Ke Ma, Eric Herrmann, Riad Yahiaoui, S M Jahadun Nobi, Fei Ding, Peter Uhd Jepsen, Thomas A. Searles, Binbin Zhou, Zizwe Chase, Xi Wang   +11 more
wiley   +1 more source

Experiences modelling and using object-oriented telecommunication service frameworks in SDL [PDF]

, 1999
This paper describes experiences in using SDL and its associated tools to create telecommunication services by producing and specialising object-oriented frameworks.
Brugali, Bäumer, Codenie, Demeyerm, Evan H Magill, Fayad, Johnson, Mario Kolberg, Richard O Sinnott, Rumbaugh, Schmid, Schmidt, Sinnott   +12 more
core   +1 more source

Ultrafast Radiative Recombination Engineering in InGaN/GaN Quantum Wells through Temperature, Alloy Fraction and Layer's Width Tuning for Photonics

Advanced Theory and Simulations, EarlyView.
A side‐view schematic illustrating intra‐ and inter‐band optical recombination processes in quantum wells, highlighting applications that depend on carrier dynamics and recombination lifetimes, such as lasers, photodetectors, and solar cells. Abstract Radiative lifetime (RT) on the picosecond to femtosecond scale plays a key role in enabling ultrafast ...
Redouane En‐nadir
wiley   +1 more source

Nucleophilic Covalent Ligands Enable Simultaneous Surface Reconstruction and Passivation of Colloidal InSb Quantum Dots for Stable Short‐Wave Infrared Photodetectors

Angewandte Chemie, EarlyView.
A simultaneous surface reconstruction and passivation strategy is designed for indium antimonide (InSb) colloidal quantum dots (CQDs) using sulfur‐based nucleophilic covalent ligands. This leads to stable CQD inks and 1450 nm‐operating InSb CQD photodetectors with 28% external quantum efficiency and 300 h operating lifetime. Abstract Indium antimonide (
Yangning Zhang, Muhammad Imran, Pan Xia, Yiqing Chen, Ahmet Gulsaran, Yanjiang Liu, Ehsan Nikbin, Benjamin Rehl, Lizhou Fan, Filip Dinic, Da Bin Kim, Lewei Zeng, Mustafa Yavuz, Sjoerd Hoogland, Edward H. Sargent   +14 more
wiley   +2 more sources

An evaluation of total quality management practices on business performance of the Nigerian telecommunications sector: a case study of MTN Nigeria Limited [PDF]

, 2012
This study examines the effects of The Total Quality Management practices on Business Performance of the Nigerian Telecommunications Sector. A review of literatures on TQM shows that no study has been carried out on its application in the Nigerian ...
Alamutu, S. A, Hotepo, O. M, Nwatulegwu, B. I, Oyeobu, A. J   +3 more
core  

Ultra-stable long distance optical frequency distribution using the Internet fiber network

, 2012
We report an optical link of 540 km for ultrastable frequency distribution over the Internet fiber network. The stable frequency optical signal is processed enabling uninterrupted propagation on both directions.
Adil Haboucha, Amy-Klein, Anne Amy-Klein, Ashby, Bruno Chanteau, Chou, Christian Chardonnet, Friebe, Fujieda, Fujieda, Giorgio Santarelli, Grosche, Guena, Hong, Huntemann, Jiang, Katori, Kéfélian, Li, Lopez, Lopez, Lopez, Newbury, Olivier Lopez, Predehl, Sherman, Sliwczynski, Swallows, Terra, Weyers, Yamaguchi   +30 more
core   +2 more sources

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, Wen Gao, Xiaorong Niu, Yuhang Liu, Zichen Jin, Fan Zhang, Zhengdong Cheng, Xiaoning Jiang, Wendong Zhang, Ting Wang, Jianlong Ji, Xiaojie Chai, Shengbo Sang   +12 more
wiley   +1 more source

Microwave‐Driven Dielectric‐Magnetic Regulation of Graphite@α‐MnO2 Toward Enhanced Electromagnetic Wave Absorption

Advanced Science, EarlyView.
This study presents a microwave‐activated composite integrating expanded graphite with α‐MnO2 nanowires, engineered to synergistically optimize dielectric and magnetic properties. The innovative microwave‐driven process enables rapid structural transformation, yielding ultrathin, scalable electromagnetic wave‐absorbing films.
Junyu Lu, Lei Xu, Cheng Xie, Chang Zhang, Zhaohui Han, Yiyao Ren, Renchao Che   +6 more
wiley   +1 more source