Results 31 to 40 of about 912,248 (296)
Twist-Related Speckle Variation in Graded-Index Multimode Fiber
IEEE Photonics Journal, 2018 We theoretically investigate a twist-related speckle variation in a graded-index multimode fiber. The simulation results show that by increasing the offset splicing distance between a single-mode fiber and a multimode fiber, the speckle pattern tends to ...
Hongye Li +4 more
doaj +1 more source
Query management in a sensor environment [PDF]
, 2008 Traditional sensor network deployments consisted of fixed infrastructures and were relatively small in size. More and more, we see the deployment of ad-hoc sensor networks with heterogeneous devices on a larger scale, posing new challenges for device ...
Andrieu, Vincent +2 more
core +1 more source
Twist Sensor Based on Long Period Grating and Tilted Bragg Grating Written in Few-Mode Fibers
IEEE Photonics Journal, 2018 A twist sensor based on a few-mode long period grating (LPG) and a tilted fiber Bragg grating (TFBG) is proposed and demonstrated. The LPG, inscribed in a step index few-mode fiber by a CO2 laser, is utilized to excite the LP11 core mode.
Kang Yang +5 more
doaj +1 more source
Digital signature scheme for information non-repudiation in blockchain: a state of the art review
EURASIP Journal on Wireless Communications and Networking, 2020 Blockchain, as one of the most promising technology, has attracted tremendous attention. The interesting characteristics of blockchain are decentralized ledger and strong security, while non-repudiation is the important property of information security ...
Weidong Fang +5 more
doaj +1 more source
A Novel Dynamic Spectrum-Sharing Method for GEO and LEO Satellite Networks
IEEE Access, 2020 In this article, we investigate the spectrum-sharing for a space information network comprised of a geostationary orbit (GEO) satellite and a pair of low earth orbit (LEO) satellites, where one spectrum-sensing LEO (SLEO) is used to sense the status of ...
Yunfeng Wang +2 more
doaj +1 more source
Demo Abstract: Augmenting Reality with IP-based Sensor Networks [PDF]
, 2010 We demonstrate low-power IP-based sensor networks by showing a system that interacts with the sensor network using a RESTful web service interface. The sensor data is displayed with overlaid 3D graphics on top of a live camera feed, so-called augmented ...
Dunkels, Adam +5 more
core +2 more sources
Worst-Case Routing Performance Evaluation of Sensor Networks [PDF]
, 2007 Successful sensor network applications depends heavily on the ability of these networks to reliably and reasonably perform under the worst-case scenarios, extreme and unusual events for which many such networks are designed to detect.
Soedarmadji, Edwin
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source
Sparse Coding Algorithm with Negentropy and Weighted ℓ1-Norm for Signal Reconstruction
Entropy, 2017 Compressive sensing theory has attracted widespread attention in recent years and sparse signal reconstruction has been widely used in signal processing and communication.
Yingxin Zhao +4 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie +4 more
wiley +1 more source