uwb ad hoc sensor network for real time indoor localization of emergency responders
Báo cáo hóa học: " Research Article A Wireless Sensor Network for RF-Based Indoor Localization" pptx
... the scale of few meters and to good precision in room-level accuracy (vi) Real- time operation In order for location data to be useful, it usually needs to be obtained in real- time Real- time operation ... raw input data for the localization procedure consists of a set of tuples in the form of pi , Pi j , where pi is the position of an anchor node i and Pi j is the transmission power of the minimum ... Journal on Advances in Signal Processing Table 4: Costs of compared localization approaches Proposal Our approach (WSN) Time costs Autonomous network formation and maintenance Yes Network setup time...
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Báo cáo khoa học: "A System for Real-time Twitter Sentiment Analysis of 2012 U.S" pdf
... must aggregate sentiment and tweet volume within each time period for each candidate For volume, the system outputs the number of tweets every minute for each candidate For sentiment, the system ... precisely aimed at generating real- time insights as events unfold Beyond the sheer scale of the task and the need to keep up with a rapid flow of tweets, we had to address two additional issues First, ... provide rich insights into the evolution of public sentiment toward the contenders Conclusion We presented a system for real- time Twitter sentiment analysis of the ongoing 2012 U.S presidential election...
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Báo cáo khoa học: Emerging tools for real-time label-free detection of interactions on functional protein microarrays ppt
... some form of labeling on the query molecule used to probe the target proteins on the arrays The emergence of sensitive real- time label-free detection systems that use probes of local index of refraction ... introduction of DNA into mammalian cells, and the need for high-quality libraries of genes to test, has limited their widespread adoption [22] Adapting current interaction methods for HT experiments ... provides an added level of selectivity for the binding of the protein of interest, so that protein purification does not have to be as extensive To date, both approaches have proved adequate for assaying...
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Báo cáo hóa học: " Research Article Embedded System for Real-Time Digital Processing of Medical Ultrasound Doppler Signals" docx
... a host PC where proprietary software is used to configure the MCMG system and for real- time display purposes At any time, the acquisition can be stopped to download the data gathered in the circular ... This operation, for a typical PRI of 100 microseconds, produces a bus load of 30% of its maximum capacity Most algorithms coded in the DSP firmware needs, as data input, a vector of samples coming ... transpose a matrix of 256 × 128 elements through 256 CTs of 128 elements each The CT is performed by exploiting the sorting capabilities of the DMA channels, with no load for the DSP core Once...
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Báo cáo hóa học: "Research Article Intelligent Stale-Frame Discards for Real-Time Video Streaming over Wireless Ad Hoc Networks" ppt
... and NTP timestamps of SR; Records the system time when SR is received; Else If (RTCP RR is received) If (SSRC of RR = SSRC of SR) and (TLSR of RR = NTP timestamp of SR) RTT = (system time when ... medium access control protocol for real time traffic in ad hoc networks,” in Proceedings of the 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC ’07), ... discard (I-EPD) for realtime video streaming over a wireless ad hoc network An IN on the path from a video server to its receiver can intelligently determine whether a buffered real- time video packet...
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Tài liệu Báo cáo khoa học: "TOWARDS A DICTIONARY SUPPORT ENVIRONMENT FOR REAL TIME PARSING" potx
... sense3 head: X7x head: X l x head: V3 head:TSa head:TSb Figure USING control character " ' also appears; the insertion of this code is based solely on visual criteria, r a t h e r t h a n the informational ... use of the codes; for example, Figure illustratesthe g r a m m a r codes for the listedsenses of the verb "upset" upset: for cat = v word sense word sense word sense word sense THE head T1 head ... The large amount of semi-formalised information concerning the interpretation of noun compounds and idioms also represents a rich and potentially very useful source of information for natural language...
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Báo cáo sinh học: " Determination of suitable housekeeping genes for normalisation of quantitative real time PCR analysis of cells infected with human immunodeficiency virus and herpes viruses" pdf
... plates in a final volume of 25 μl under the following cycle conditions: 50°C for minutes, 95°C for minute, 45 cycles of 95°C for 15 seconds 55°C for 30 seconds and 72°C for 30 seconds Data analysis ... replicates Repeated measures analysis of variance was then used to test for the presence of interaction between the effects of Page of (page number not for citation purposes) Virology Journal ... the reliability of a panel of potential genes should be determined for individual experimental conditions [3,8] Ideally the best two or three of these genes would then be used for normalisation...
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Báo cáo hóa học: " Determination of suitable housekeeping genes for normalisation of quantitative real time PCR analysis of cells infected with human immunodeficiency virus and herpes viruses" pot
... plates in a final volume of 25 μl under the following cycle conditions: 50°C for minutes, 95°C for minute, 45 cycles of 95°C for 15 seconds 55°C for 30 seconds and 72°C for 30 seconds Data analysis ... replicates Repeated measures analysis of variance was then used to test for the presence of interaction between the effects of Page of (page number not for citation purposes) Virology Journal ... the reliability of a panel of potential genes should be determined for individual experimental conditions [3,8] Ideally the best two or three of these genes would then be used for normalisation...
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báo cáo hóa học: " Analysis of TDMA scheduling by means of Egyptian Fractions for real-time WSNs" doc
... packet size of 1190 bytes has a similar flow as with the gradual arrival of packets, but with an offset that is the result of the packetized arrival of the data The flow of the packet size of 1200 ... latency of the rest of the rates The reason for this characteristic, that we already noticed by means of the gradual arrival of the data, is rather trivial At lower rates, it takes more time to ... Melhem, D Mosse, Time slot allocation for Real- Time messages with negotiable distance constraints, in Real- Time Technology and Applications Symposium (1998) 14 M Mock, E Nett, Real- Time Communication...
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Báo cáo hóa học: " Research Article Adaptive Linear Prediction Filtering in DWT Domain for Real-Time Musical Onset Detection" potx
... carried out on real- time embedded target (the TMS320C6747 floating-point processor powered by Texas Instruments), confirming the real- time versatility of the approach Real- time applications of an onset ... here described for the sake of completeness DWT has been also chosen for the fast convergence speed of LMS adaptive filters in the transformed domain [15] and for the short length of its filters ... to the ways adopted to scale the original algorithm version down, whereas discusses performed computer simulations and real- time capabilities of the proposed technique, for both addressed implementation...
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Báo cáo hóa học: " Research Article Two-Dimensional Beam Tracing from Visibility Diagrams for Real-Time Acoustic Rendering" doc
... auralization of the diffusive paths takes only a fraction of the time spent by the 200 300 400 500 600 Walls Figure 15: Tracing time of the diffusive paths as a function of the number of walls of the ... validity of our solution, we performed a series of simulation experiments as well as a measurement campaign in a real environment An initial set of simulations was performed with the goal of assessing ... just for constructing beam-trees but also to perform the whole path-tracing process In this paper we expand and repurpose the beam tracing method for applications of real- time rendering of acoustic...
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Báo cáo hóa học: " Research Article A Speed-Adaptive Media Encryption Scheme for Real-Time Recording and Playback System" pot
... Section concludes the paper Admire and Encryption Bottleneck 2.1 An Overview of Admire System As is shown in Figures and 2, the Admire (ADvanced Multimedia Interactive Real- time Environment) system ... to support real- time applications The rest of the paper is organized as follows Section presents the overview of AdmireRPS system and its security problems The design and implement of AdmireRPS ... they could not adjust their speed to meet the variation of media data throughput of RPS Therefore, in this paper, we design a secure real- time recording and playback system, named AdmireRPS, based...
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Báo cáo hóa học: "Research Article A Random Ant-Like Unicast Routing Protocol for Wireless Ad Hoc Sensor Networks and Performance Evaluation" pdf
... routing information when the network achieves a steady state or runs for long enough time, the Min L will be increasing while the pausing time increases Obviously, in a dense network, the number of ... tolerance to the increase of network traffic load, it is scalable as the routing load change is small and gradual even at higher number of sending sources The advantages of RAUR are due to its unicast ... host X is performing route requests for the destinations of the data packets in order for these packets to be sent 2.1.3 Neighbor List The neighbor list of node X records the addresses of nodes that...
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Báo cáo hóa học: "Research Article Statistical Real-time Model for Performance Prediction of Ship Detection from Microsatellite Electro-Optical Imagers" docx
... classes of pixels: (1) pixels only composed of open-sea radiance, (2) pixels only composed of wake radiance, and (3) mixed pixels composed partially of open-sea radiance and of wake radiance For ... used for spaceborne EO sensors with large GSD Hence, to our knowledge, there are no real- time tools available for simulating performance of spaceborne EO sensors with large GSD in a maritime ... scope of this paper.) The simplest model for pw,b thus considers a uniform pdf for the emissivity leading to a uniform distribution of Rb However, this is not w realistic since having microfacets...
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Báo cáo hóa học: "Research Article Dynamic Subcarrier Allocation for Real-Time Traffic over Multiuser OFDM Systems" ppt
... and Removal Scheme In real networks, the number of active users changes dynamically Without access control, the bandwidth may be inadequate In addition, particularly for real- time traffic, without ... The transmission process for each user can be modelled as an M/G/1 queue Define the average system time of user k as E[Tk ]; the delay requirement of realtime user k can be formulated as E[Tk ] ≤ ... evaluated in terms of the number of subcarriers required, leading to a more flexible scheduling algorithm which can effectively guarantee the QoS for real- time services in multiuser OFDM systems; (2)...
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Báo cáo hóa học: " Research Article A Real-Time Embedded Kernel for Nonvisual Robotic Sensors" pdf
... of a set of tasks with deadlines means that each task is executed within its deadline This is a typical requirement of real time kernels for embedded systems, where missing a deadline may lead ... } Ready } System run Created Pseudocode Lipt Ready Waiting for execution instant Nonreal -time tasks Figure 3: Yartek queues used for scheduling Figure 4: State diagram of a real- time thread in ... updates its start time and its deadline adding them the thread period Enzo Mumolo et al Created Non real- time System run Exit Figure 5: State diagram of a non -real- time thread in Yartek Interrupt...
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Báo cáo hóa học: " Research Article Efficient Adaptive Combination of Histograms for Real-Time Tracking" pdf
... mechanism for online adaptation of the feature weights Alternatively, instead of the linear combination D∗ (x) of the distances Dh (q(h) (x(0)), q(h) (x(t))), a linear combination of the simplified ... perform weight adaptation in an explicit and very efficient tracking framework The central part of feature selection as well as adaptive weighting is a measure for the tracking performance of each ... loosing real- time capability The formulation allows for the combination of an arbitrary number of histograms with different dimensions and sizes, as well as individual distance functions for each...
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Báo cáo hóa học: " Research Article Hybrid Modeling of Intra-DCT Coefficients for Real-Time Video Encoding" potx
... compares the performance of a number of transform-based features (including novel features extracted using the discrete curvelet transform) as well as feature set selection methods for visual speech ... extremely broad field Most papers in this issue address either the problem of person detection and tracking or the problem of human body posture estimation In “Detection and tracking of humans and ... segmentation for lecture webcasts” by G Friedland and R Rojas describes an interesting application of person detection and segmentation The challenge addressed is that of recording and transmission of...
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Báo cáo hóa học: " Research Article Hybrid Modeling of Intra-DCT Coefficients for Real-Time Video Encoding" ppt
... characteristics of the proposed method and the reference codec [14] for (a) Foreman, (b) Glasgow, (c) Akiyo, and (d) Miss America Additional operations are performed for the calculation of the residual ... multiplications (MULs) and additions (ADDs) including the overhead is compared with the original XVID encoder for the calculations of intra-DCT and Q as shown in Figure Since the number of comparisons (CMPs) ... included into the ADD operations Although the number of ADD operations remains high, the required MUL operations are reduced approximately by 53–90% Therefore, the overall processing time for intra-DCT...
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Báo cáo hóa học: " Research Article Self-Timed Scheduling Analysis for Real-Time Applications" doc
... SIFS Deadline Detect Fail Synchronize Dec header Dec payload Fail Figure 7: Real- time requirements and state diagram for 902.1b (WLAN) reception job The actual deadline for finishing payload decoding ... hypothesis, since our source is sporadic Lemma The maximum value of m, for which increasing the start of iteration k of actor i has no effect on the start time of iteration q of actor j, with q < k + m, ... defined for n > m because the start time of execution k + n of j is dependent on the start time of execution k + of i However, the maximum difference between s(i, k + 1) and s(i, k) is undefined for...
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