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281
Routing optimization method based on GPCR for vehicular Ad Hoc network
Published 2020-07-01“…To improve the performance in sparse networks,local optimum,and routing loop in the greedy perimeter coordinator routing (GPCR) protocol,the weighted-GPCR (W-GPCR) protocol was proposed.The relationship between vehicle node routing and other parameters such as the Euclidean distance between node pairs,moving direction and density was profoundly analyzed,the composite parameter weighted model was established and the calculation method was designed for the existing routing problems,the weighted parameter ratio was selected adaptively in different scenarios,so as to obtain the optimal next-hop relay node.In order to verify the performance of the W-GPCR method,the proposed method was compared with the existing methods such as the traditional geographic perimeter stateless routing (GPSR) protocol,GPCR and so on,and the results show that the proposed method is superior to the package delivery ratio,end-to-end delay,and average hop count.…”
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282
NGHIÊN CỨU KHẢ NĂNG ỨC CHẾ VI KHUẨN GÂY BỆNH VIÊM ĐƯỜNG HÔ HẤP VÀ VÒM HỌNG CỦA CÁC HOẠT CHẤT TÁCH CHIẾT TỪ CÂY KINH GIỚI (Elsholatzia cillata) BẰNG THỰC NGHIỆM VÀ MÔ PHỎNG...
Published 2024-09-01“… Tinh dầu lá cây Kinh giới (Elsholatzia cillata) được chiết xuất và xác định được 13 hợp chất (E1 - E13) bằng phương pháp GC-MS. Nghiên cứu khả năng ức chế vi khuẩn gây bệnh viêm đường hô hấp (Streptococcus pneumoniae với protein 5XU1) và vi khuẩn vòm họng (Strepcococcus pyogene với protein 4XCH) của các hợp chất chất trong điều kiện phòng thí nghiệm (in vitro) và mô phỏng docking phân tử (in silico). …”
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283
Influence of Extra-Articular Augmentation on Clinical Outcomes and Survival in Patients Undergoing Anterior Cruciate Ligament Reconstruction: A Pseudorandomized Study
Published 2025-01-01“…Nor were differences found in the limb symmetry index; the single hop test (<i>p</i> = 0.710); the triple hop test (<i>p</i> = 0.653); the crossover hop test (<i>p</i> = 0.682); the 6 meter timed hop test (<i>p</i> = 0.360); the normalized Y-balance test (YBT) (<i>p</i> = 0.459 anterior; <i>p</i> = 0.898 posterolateral; and <i>p</i> = 0.211 posteromedial directions); or the limb symmetry index of the composite YBT (<i>p</i> = 0.488). …”
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284
Green virtual topology design algorithm based on constraint-based routing
Published 2014-04-01“…A heuristic algorithm base on constraint-based routing, namely CBR-GVTD, was proposed, which combines the single-hop and multi-hop routing to establish virtual topology, and makes trade-offs between the network power consumption and routing performance via the constraint-based routing mechanism. …”
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285
Improved AB-CPREs with Revocability and HRA Security under LWE
Published 2024-01-01“…Definition and security model of single-hop directly revocable AB-CPREs are given, and the first detailed construction of single-hop directly revocable AB-CPREs based on standard LWE assumptions is also proposed.…”
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286
Analysis of Hybrid Buffering and Retransmission in OBS Networks
Published 2015-01-01“…Normally all the bursts reach the first hop and few of them go for second hop to reach destination. …”
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287
Dynamic switching based real-time routing in low-duty-cycle wireless sensor networks
Published 2015-10-01“…The dynamic switching based real-time(DSRT)routing protocol was proposed to handle the arbitrary end-to-end(E2E)real-time communication in the low-duty-cycle wireless sensor networks.Firstly,the concept of available speed was designed to compensate for the big sleep latency and facilitate discovering the routes with less latency based on two-hop neighbors’ information(at lease about 20% routing path with less latency was discovered by DRST in the experiments).Moreover,it was noticed that the congestion extent in the low-duty-cycle network was determined not only by the number of packets in the network output queue,but also the destination of the packets.However,the traditional method with one-hop neighbors’ information cannot differentiate this kind of congestion.Therefore,combined with the dynamic switching mechanism,the DSRT proposed a congestion avoiding algorithm by classifying the packets in the queue.Through comprehensive experiments,the efficiency of routing discovering and congestion avoiding of the DSRT protocol is demonstrated,and the E2E delay is decreased by at least 200% when the traffic was high.…”
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288
Energy optimization of ant colony algorithm in wireless sensor network
Published 2017-04-01“…Furthermore, in terms of probability selection of the nodes and the pheromone update, this algorithm focuses on the next hop node through the comparison of distance between the nodes and the residual energy, which ensures less possibility of nodes with low energy selected as the next hop. …”
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289
On the Multiuser Diversity of Relay-Aided Downlink Systems Using Reduced Feedback
Published 2014-01-01“…In our scheme, the BS opportunistically selects both the transmission mode, that is, either one- or two-hop transmission, and the desired user (i.e., the desired MS). …”
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290
The MyJump App is a Valid Method of Assessing and Classifying Limb Symmetry During Recovery from Anterior Cruciate Ligament Reconstruction
Published 2023-10-01“… # Purpose To describe the diagnostic accuracy (pass/fail using 90% LSI) and clinimetrics of an iPad-based app ("MyJump") compared to reference force plate analyses for limb symmetry, jump/hop height, contact time, flight time, and reactive strength index # Study design Prospective cohort, diagnostic accuracy # Methods Fifty-one consecutive patients recovering from ACL reconstruction undertaking routine independent clinical evaluation of their hop and jump performance were concurrently and independently examined using force plates and the MyJump app. …”
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291
The Impact of Dance-Specific Neuromuscular Conditioning and Injury Prevention Training on Motor Control, Stability, Balance, Function and Injury in Professional Ballet Dancers: A M...
Published 2021-04-01“… # Conclusion Completing a conditioning and prevention program for professional ballet dancers was related to improved function, balance, hop distance/stability and upper extremity stability. …”
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292
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293
ĐÁNH GIÁ HIỆU QUẢ CỦA PHÂN LÂN TRÊN ĐẤT TRỒNG DỨA TẠI ĐỨC TRỌNG, LÂM ĐỒNG
Published 2015-03-01“…Phối hợp kali chlorua và amonium sulfate với phân bón phosphate để nhằm đánh giá năng lực của pH, RC, phốt pho, kali và biến đổi nitơ trên đất. …”
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294
Recognizing Boundaries in Wireless Sensor Networks Based on Local Connectivity Information
Published 2014-07-01“…Specifically, given any node in a WSN, the proposed algorithm constructs its 2-hop isocontour and locally makes a rough decision on whether this node is suspected to be on boundaries of the WSN by examining the associated 2-hop isocontour. …”
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295
IEEE 802.15.4 based topology control and routing for mobile Sink wireless sensor networks
Published 2011-01-01“…Based on the standard of IEEE 802.15.4b,a cross-layer protocol design combining cluster-tree formatting and mobile routing was proposed for query-driven wireless sensor networks with mobile Sink(s).Firstly,energy consumption,network connectivity,load balancing and sub-tree depth were employed as the evaluation factors.A topology evaluation function under a multi-objective optimization model was defined to construct the stable and optimal underlying clus-ter-tree network.Secondly,the beacon frame scheduling based distributed sleep synchronization algorithm in IEEE 802.15.4 MAC was improved,which was used to maintain the network synchronization and topology correction on low duty-cycle.Thirdly,the parent-child relationships established during the topology formatting according to "first beacon","best links","top level" rules were exploited to build the two-way routing paths between mobile Sink(s) and the nodes within N-Hop range.Eventually,the topology control schemes at MAC layer and the query routing approach at network layer were completely implemented in the protocol stack of TinyOS.The experimental results show that the evaluation function can effectively reflect the quality of network formatting.Jointed with the sleep synchronization mechanism un-der the topology generated using the rule of "best links",the N-Hop reactive routing exhibits high energy-efficiency.…”
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296
A New Cooperative MIMO Scheme Based on SM for Energy-Efficiency Improvement in Wireless Sensor Network
Published 2014-01-01“…Later, under the guide of this new scheme we extend our proposed CMIMO-SM to a multihop clustered WSN for further achieving energy efficiency by finding an optimal hop-length. Equidistant hop as the traditional scheme will be compared in this paper. …”
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297
High-throughput multi-channel MAC protocol with multi-interface cooperation
Published 2017-08-01“…Low uti1ization of the interface a1ways exists in mu1ti-interface mu1ti-channe1(MIMC)medium access protoco1.Therefore,the mu1ti-interface cooperating(MIC)mechanism was proposed.A virtua1 MAC 1ayer was designed in mu1ti-interface node and mu1ti-interface cooperative mechanism through one successfu1 handshake of sing1e interface to estab1ish the synchronous transmission re1ationship between source-destination nodes a11 interface and data channe1 groups,thus improving the throughput and efficiency of contro1 frame.Furthermore,nodes with successfu1 transmission choose the current channe1 set as decision-making channe1s of the next transmission,which can effective1y reduce the impact of hidden termina1.The simu1ation resu1ts of MIC-MAC protoco1 show that the throughput has increased by 100% to 200% compared with MIMC-SMAC protoco1 and IEEE 802.11 in sing1e hop network,the co11ision and hidden termina1 prob1em have a1so been great1y optimized in mu1ti hop network.…”
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298
A Sensor Positioning Scheme with High Accuracy in Nonuniform Wireless Sensor Networks
Published 2013-06-01“…The density probability scheme estimates 1-hop distance by using communication between nodes. …”
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299
An urban expressway forwarding scheme for cognitive Internet of vehicles
Published 2020-03-01“…To address this challenge, we develop a multi-hop forwarding scheme to minimize the end-to-end delay for such networks. …”
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300
On Eavesdropping Attacks in Wireless Sensor Networks with Directional Antennas
Published 2013-08-01“…We have found that using directional antennas in either single-hop WSNs or multihop WSNs can significantly reduce the eavesdropping probability. …”
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