Articoli di riviste: "SUPER NODE"

1

He, Yong. "A Localization Algorithm of Nodes Based on Hypersphere Granular Computing in Wireless Sensor Networks". Advanced Materials Research 998-999 (luglio 2014): 1390–93. http://dx.doi.org/10.4028/www.scientific.net/amr.998-999.1390.

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This paper proposes a node localization algorithm based on super chondritic calculation, super chondritic calculation scanning of a training set is able to complete the training process, the training has characteristics of fast, the problem of node localization for wireless sensor networks. Firstly, according to the related parameter information for the location of wireless sensor nodes, a multi input, multi output problem of training set, and then through the methods of grid division, location area, the original training set into the classification of multi input, single output training set, the super chondritic algorithm by scanning training, in order to get the relevant parameters, and the estimation of the unknown node location. Simulation results show that the proposed algorithm has better positioning accuracy.

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DE LA TORRE, PILAR, RAYMOND GREENLAW e TERESA M. PRZYTYCKA. "OPTIMAL TREE RANKING IS IN $\mathcal{NC}$". Parallel Processing Letters 02, n. 01 (marzo 1992): 31–41. http://dx.doi.org/10.1142/s0129626492000155.

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This paper places the optimal tree ranking problem in [Formula: see text]. A ranking is a labeling of the nodes with natural numbers such that if nodes u and v have the same label then there exists another node with a greater label on the path between them. An optimal ranking is a ranking in which the largest label assigned to any node is as small as possible among all rankings. An O(n) sequential algorithm is known. Researchers have speculated that this problem is P-complete. We show that for an n-node tree, one can compute an optimal ranking in O( log n) time using n2/ log n CREW PRAM processors. In fact, our ranking is super critical in that the label assigned to each node is absolutely as small as possible. We achieve these results by showing that a more general problem, which we call the super critical numbering problem, is in [Formula: see text]. No [Formula: see text] algorithm for the super critical tree ranking problem, approximate or otherwise, was previously known; the only known [Formula: see text] algorithm for optimal tree ranking was an approximate one.

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Ge, Jun Wei, Yan Feng Wang e Yi Qiu Fang. "Research on P2P Resources Search Algorithm Based on Cloud Computing". Advanced Materials Research 765-767 (settembre 2013): 1533–36. http://dx.doi.org/10.4028/www.scientific.net/amr.765-767.1533.

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This paper puts forward a model combined cloud computing and P2P, and then achieves chord resource search algorithm in the model. Because chord algorithm one hand, does not consider the problem of node heterogeneity, on the other hand, its routing table has large redundant information. So chord algorithm is improved from the two areas, and last MRC-chord is proposed. The algorithm first defines that the nodes of the same geographical form a ring, and in each ring, the node with strongest overall performance is selected to be super cloud node, all of the super cloud nodes form the master ring , then improves routing table. Experimental results show that: the improved algorithm can reduce average routing hops and average network delay effectively, so improves the efficiency of resource search.

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4

Zhao, Bo Wen. "Monitoring Technological Analysis of Communication Network Platform". Applied Mechanics and Materials 687-691 (novembre 2014): 2630–34. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.2630.

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Node virtual network platform is designed and realized in allusion to node administration application scenarios in cloud computing, and distributed database and virtual network model with dynamic network features are put forward; nodes build node network through self-discovery packet and provide ability of addressing capability through built-in database engine. In the environment of super-large scale, node degree influences the whole virtual network platform. Through test, this platform can meet the needs of dynamic condition of application node brought by the explosive application request.

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Fu, Yu-Hsiang, Chung-Yuan Huang e Chuen-Tsai Sun. "Identifying Super-Spreader Nodes in Complex Networks". Mathematical Problems in Engineering 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/675713.

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Identifying the most influential individuals spreading information or infectious diseases can assist or hinder information dissemination, product exposure, and contagious disease detection. Hub nodes, high betweenness nodes, high closeness nodes, and highk-shell nodes have been identified as good initial spreaders, but efforts to use node diversity within network structures to measure spreading ability are few. Here we describe a two-step framework that combines global diversity and local features to identify the most influential network nodes. Results from susceptible-infected-recovered epidemic simulations indicate that our proposed method performs well and stably in single initial spreader scenarios associated with various complex network datasets.

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Song, Pan. "A Topology Structure Control Algorithm of Wireless Sensor Network by Using Small World Model". Applied Mechanics and Materials 325-326 (giugno 2013): 1023–27. http://dx.doi.org/10.4028/www.scientific.net/amm.325-326.1023.

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The small world network has higher convergence coefficient and shorter average path length. This paper introduce small world theory to the wireless sensor network, and propose a topology control algorithm of wireless sensor network based on NW small world network model. The design of algorithm is hierarchical, which include formation of super node ring, common node join clusters, maintenance the load balance of common node in cluster, and maintenance the super node ring when super node is failure. The experiment shows that the topology control algorithm has the characteristics of small world network, the network connectivity is good, and the lifetime of wireless sensor network is prolonged.

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Karakatsanis, A., H. Olofsson, P. Stålberg, L. Bergkvist, S. Abdsaleh e F. Wärnberg. "Simplifying Logistics and Avoiding the Unnecessary in Patients With Breast Cancer Undergoing Sentinel Node Biopsy. A Prospective Feasibility Trial of the Preoperative Injection of Super Paramagnetic Iron Oxide Nanoparticles". Scandinavian Journal of Surgery 107, n. 2 (13 novembre 2017): 130–37. http://dx.doi.org/10.1177/1457496917738867.

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Purpose: Sentinel node is routinely localized with the intraoperative use of a radioactive tracer, involving challenging logistics. Super paramagnetic iron oxide nanoparticle is a non-radioactive tracer with comparable performance that could allow for preoperative localization, would simplify the procedure, and possibly be of value in axillary mapping before neoadjuvant treatment. The current trial aimed to determine the a priori hypothesis that the injection of super paramagnetic iron oxide nanoparticles in the preoperative period for the localization of the sentinel node is feasible. Methods: This is a prospective feasibility trial, conducted from 9 September 2014 to 22 October 2014 at Uppsala University Hospital. In all, 12 consecutive patients with primary breast cancer planned for resection of the primary and sentinel node biopsy were recruited. Super paramagnetic iron oxide nanoparticles were injected in the preoperative visit in the outpatient clinic. The radioactive tracer (99mTc) and the blue dye were injected perioperatively in standard fashion. A volunteer was injected with super paramagnetic iron oxide nanoparticles to follow the decline in the magnetic signal in the sentinel node over time. The primary outcome was successful sentinel node detection. Results: Super paramagnetic iron oxide nanoparticles’ detection after preoperative injection (3–15 days) was successful in all cases (100%). In the volunteer, axillary signal was presented for 4 weeks. No adverse effects were noted. Conclusion and relevance: Preoperative super paramagnetic iron oxide nanoparticles’ injection is feasible and leads to successful detection of the sentinel node. That may lead to simplified logistics as well as the identification, sampling, and marking of the sentinel node in patients planned for neoadjuvant treatment.

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8

Delchev, Grozi. "The Influence of Late Treatment with Antibroadleaved Herbicides during Stem Elongation Stage of Durum Wheat on Sowing Characteristics of Seeds". АГРОЗНАЊЕ 19, n. 3 (10 dicembre 2018): 155. http://dx.doi.org/10.7251/agren1803155d.

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The aim of this investigation was to establish the changes of sowing properties of durum wheat seeds and the quantity of waste grain due to the influence of 20 antibroadleaved herbicides, which were applied during the 1st, the 2nd, and the 3rd stem node stages of durum wheat. During the 1st stem node stage of durum wheat none of the herbicides included in the investigation had negative effect on sowing characteristics of durum wheat seeds. During the 2nd and the 3rd stem node stages of durum wheat herbicides such as Arat, Biathlon, Derby super, Mustang, Secator, Lintur, Akurat, and Akurat extra can be used in seed production crops of durum wheat. During the 1st stem node stage of durum wheat the antibroadleaved herbicides Arat, Biathlon, Derby super, Mustang, Weedmaster, Secator, Lintur, Akurat, Akurat extra, Eagle, Starane, Sanafen, Dicotex, and Herby can be used. These herbicides do not have negative influence on grain yield. During the 2nd stem node stage of durum wheat the herbicides Arat, Biathlon, Derby super, Mustang, Secator, Lintur, Akurat, Akurat extra, Starane, Dicotex, and Herby can be used. During the 3rd stem node stage of durum wheat only the herbicides Arat, Biathlon, Derby super, Secator, Lintur, Akurat, Akurat extra, and Starane can be used.

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9

Xu, Jie, e Wei Ding. "Rough Estimator Based Asynchronous Distributed Super Points Detection on High Speed Network Edge". Algorithms 14, n. 10 (25 settembre 2021): 277. http://dx.doi.org/10.3390/a14100277.

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Super points detection plays an important role in network research and application. With the increase of network scale, distributed super points detection has become a hot research topic. The key point of super points detection in a multi-node distributed environment is how to reduce communication overhead. Therefore, this paper proposes a three-stage communication algorithm to detect super points in a distributed environment, Rough Estimator based Asynchronous Distributed super points detection algorithm (READ). READ uses a lightweight estimator, the Rough Estimator (RE), which is fast in computation and takes less memory to generate candidate super points. Meanwhile, the famous Linear Estimator (LE) is applied to accurately estimate the cardinality of each candidate super point, so as to detect the super point correctly. In READ, each node scans IP address pairs asynchronously. When reaching the time window boundary, READ starts three-stage communication to detect the super point. This paper proves that the accuracy of READ in a distributed environment is no less than that in the single-node environment. Four groups of 10 Gb/s and 40 Gb/s real-world high-speed network traffic are used to test READ. The experimental results show that READ not only has high accuracy in a distributed environment, but also has less than 5% of communication burden compared with existing algorithms.

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Boonklurb, Ratinan, Authawich Narissayaporn e Sirirat Singhun. "Super edge-magic labeling of -node -uniform hyperpaths and -node -uniform hypercycles". AKCE International Journal of Graphs and Combinatorics 13, n. 3 (1 dicembre 2016): 218–29. http://dx.doi.org/10.1016/j.akcej.2016.06.011.

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11

Delchev, Gr, e M. Delcheva. "Productivity and yield stability at late treatment of durum wheat (Triticum durum Desf.) with antibroadleaved herbicides II. Influence at treatment during 2-nd stem node stage". Agricultural Science and Technology 10, n. 4 (2018): 315–19. http://dx.doi.org/10.15547/10.15547/ast.2018.04.059.

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Abstract. The research was conducted during 2012-2014 on pellic vertisol soil type. Investigated was the Bulgarian durum wheat cultivar Victoria (Triticum durum var. valenciae). A total of 20 antibroadleaved herbicides were investigated: Granstar 75 DF, Granstar super 50 SG, Ally max SG, Arat, Biathlon 4 D, Derby super WG, Mustang 306.25 SC, Weedmaster 646 CL, Sunsac, Secator OD, Logran 60 WG, Lintur 70 WG, Akurat 60 WG, Akurat extra WG, Eagle 75 DF, Herbaflex, Starane 250 EK, Sanafen, Dicotex 400 and Herby 675. All herbicides were treated in 2-nd stem node stage of durum wheat. During 2-nd stem node stage of durum wheat the following antibroadleaved herbicides can be used: Arat, Biathlon, Derby super, Mustang, Secator, Lintur, Akurat, Akurat extra, Starane, Dicotex and Herby. These herbicides do not have a negative influence on grain yield. The most unstable treatments are with herbicides Granstar, Granstar super, Ally max, Sunsac, Logran, Eagle, Herbaflex and Herby. Their selectivity to durum wheat is influenced most strongly by weather conditions during the vegetation period. From the viewpoint of technology for durum wheat growing, during 2-nd stem node stage technologically the most valuable are the herbicides Derby super, Arat, Biathlon, Secator, Akurat, Akurat extra and Lintur. Their application provides high and stable grain yield during different years. The herbicides Granstar, Granstar super, Ally max, Sunsac, Weedmaster, Logran, Eagle and Herbaflex cannot be used during 2-nd stem node stage of durum wheat.

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12

Delchev, Gr, e S. Angelova. "Productivity and yield stability at late treatment of durum wheat (Triticum durum Desf.) with antibroadleaved herbicides. III. Influence at treatment during 3-rd stem node stage". Agricultural Science and Technology 11, n. 1 (2019): 36–40. http://dx.doi.org/10.15547/10.15547/ast.2019.01.006.

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Abstract. The aim of the study was to investigate the productivity and yield stability at durum wheat (Triticum durum Desf.) treated with antibroadleaved herbicides during 3-rd stem node stage. The experiment was conducted during 2012-2014 on pellic vertisol soil type. Under investigation was Bulgarian durum wheat cultivar Victoria (Triticum durum var. valenciae). A total of 20 antibroadleaved herbicides were tested: Granstar 75 DF, Granstar super 50 SG, Ally max SG, Arat, Biathlon 4 D, Derby super WG, Mustang 306.25 SC, Weedmaster 646 CL, Sunsac, Secator OD, Logran 60 WG, Lintur 70 WG, Akurat 60 WG, Akurat extra WG, Eagle 75 DF, Herbaflex, Starane 250 EK, Sanafen, Dicotex 400 and Herby 675. All herbicides were treated in 3-rd stem node stage of durum wheat. It was found that during 3-rd stem node stage of durum wheat the antibroadleaved herbicides Arat, Biathlon, Derby super, Secator, Lintur, Akurat, Akurat extra and Starane can be used. These herbicides do not have a negative influence on grain yield. The most unstable yield is obtained after the treatment with herbicides Granstar, Granstar super, Ally max, Sunsac, Logran, Eagle, Herbaflex and Herby. Their selectivity to durum wheat is influenced most strongly by weather conditions during the vegetation period. From the viewpoint of technology for durum wheat growing, during 3-rd stem node stage technologically the most valuable are herbicides Derby super, Arat, Biathlon, Secator, Akurat, Akurat extra and Lintur. After the treatment with them high grain yield with high stability with relation to different years is obtained. The herbicides Granstar, Granstar super, Ally max, Sunsac, Weedmaster, Logran, Eagle, Herbaflex, Sanafen, Dicotex and Herby cannot be used during 3-rd stem node stage of durum wheat.

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DING, Yuehang, Hongtao YU, Jianpeng ZHANG, Yunjie GU, Ruiyang HUANG e Shize KANG. "Super-Node Based Detection of Redundant Ontology Relations". IEICE Transactions on Information and Systems E102.D, n. 7 (1 luglio 2019): 1400–1403. http://dx.doi.org/10.1587/transinf.2019edl8010.

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14

Zhou, Aiping, Lijun Liu, Huisheng Zhu, Chen'gang Zhu e Lin Chen. "Parallel Sketch Based Super Node Detection with Traceability". Chinese Journal of Electronics 27, n. 6 (1 novembre 2018): 1133–40. http://dx.doi.org/10.1049/cje.2018.08.009.

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Miao, Chunjiao, Hongke Zhang, Huachun Zhou, Ping Dong e Shuo Shen. "Super node routing strategy in content-centric networking". Transactions of Tianjin University 21, n. 2 (aprile 2015): 122–28. http://dx.doi.org/10.1007/s12209-015-2382-3.

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Zhao, Zhigang. "Research on Invulnerability of Wireless Sensor Networks Based on Complex Network Topology Structure". International Journal of Online Engineering (iJOE) 13, n. 03 (28 marzo 2017): 100. http://dx.doi.org/10.3991/ijoe.v13i03.6863.

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<p><span style="font-family: 'Times New Roman',serif; font-size: 12pt; mso-fareast-font-family: SimSun; mso-fareast-theme-font: minor-fareast; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span style="font-family: 'Times New Roman',serif; font-size: 12pt; mso-fareast-font-family: SimSun; mso-fareast-theme-font: minor-fareast; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">For real-world wireless sensor networks (WSNs), the invulnerability of the network is very critical, because a cascading failure would cause a serious effect on the whole network performance. Network survivability is closely dependent on the topology structure of a network. In this paper, [Note: If you use "firstly," you need to add "secondly," "thirdly,"... "finally" throughout this paragraph; I don't see a need for this here] we meticulously study the topology characteristics of WSNs based on the complex network theory. According to scale-free and small-world features of complex networks, the nodes of WSNs are divided into different types, including common node, super node, and sink node. From the point of view of invulnerability in complex networks, the influence of different types of nodes on the sensor networks' invulnerability is analyzed. Simulation experiments show that adding super nodes to the WSNs would significantly improve network survivability.</span></span></p>

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S. Luis, Ruben, Hideaki Furukawa, Georg Rademacher, Benjamin J. Puttnam e Naoya Wada. "Demonstration of an SDM Network Testbed for Joint Spatial Circuit and Packet Switching †". Photonics 5, n. 3 (28 luglio 2018): 20. http://dx.doi.org/10.3390/photonics5030020.

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We demonstrate a spatial division multiplexing (SDM) network testbed composed of three nodes connected via 19-core multi-core fibers. Each node is capable of joint spatial circuit switching and joint packet switching to support 10 Tb/s spatial circuit super channels and 1 Tb/s line rate spatial packet super channels. The performance of the proposed hybrid network is evaluated, showing successful co-existence of both systems in the same network to provide high capacity and high granularity services. Finally, we demonstrate an optical channel selection associated with the quality of service requirements on the SDM network testbed.

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Chen, Li Qiang. "The Wireless Sensor Network Routing Algorithm Based on the Small World Model". Applied Mechanics and Materials 325-326 (giugno 2013): 1045–48. http://dx.doi.org/10.4028/www.scientific.net/amm.325-326.1045.

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Small-world networks have the higher clustering coefficient and shorter average path length. According to the design requirements of topology and routing algorithm of the WSN, we apply small world theory into the WSN, and propose the routing algorithm based on Newman Watts small-world network model. This algorithm judge the cluster number whether same to decide the communication type. Data is transmitted to super node firstly, and then the packets are sent by the shortest transmission paths which get from the super node ring. Experiments show that the routing algorithm improves the network throughput and network transmission efficiency, the common node energy consumption become small, so the service life of wireless sensor network is prolonged.

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Ali Ahammed G.F, Reshman Banu, Masthan Ali A. H,. "Energy Aware Hierarchal Data Aggregation and Trust Based Data Integrity Verification for WSN". Psychology and Education Journal 58, n. 1 (20 gennaio 2021): 5637–43. http://dx.doi.org/10.17762/pae.v58i1.2185.

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Currently the demand of wireless sensor networks has gained huge attraction due to its wide range of applications. Generally, these nodes are equipped with limited power resource and deployed in harsh environment where replacing these resources is a tedious task. Due to these issues, minimizing the energy consumption is a prime task to prolong the network lifetime. To overcome the challenging issue of data aggregation we introduced a novel combined mechanism which performs clustering and trust computing process to improve the data aggregation. According to this scheme, we arrange the nodes as normal node, advanced node and super nodes based on their residual energy parameters. The proposed model uses hierarchal scheme where we present a new mechanism for optimal number of cluster formation and cluster head selection. After selecting the cluster head, we apply trust computation scheme which provides sensing trust, link trust and node trust. The node trust is computed as direct and indirect trust. This trust mechanism is used as hop-by-hop manner to maintain he data integrity. The experimental study shows that proposed approach achieves better performance and maintains the security aspects of WSN.

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Alsyouf, Muhannad, Seyedeh Sanam Ladi Seyedian, Alireza Ghoreifi, Antoin Douglawi, Anne K. Schuckman, Hooman Djaladat e Siamak Daneshmand. "Incidence and outcomes of nodal metastasis in clinically nonmuscle-invasive bladder cancer." Journal of Clinical Oncology 40, n. 6_suppl (20 febbraio 2022): 577. http://dx.doi.org/10.1200/jco.2022.40.6_suppl.577.

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577 Background: Radical cystectomy (RC) is recommended in NMIBC patients with high risk of progression or persistent disease despite intravesical therapy. The role and extent of lymphadenectomy is controversial and not universally performed in this population. The objective of this study is to evaluate the incidence and pattern of nodal metastasis in patients undergoing radical cystectomy for treatment of clinically non-muscle invasive bladder cancer. Methods: Prospectively collected data of patients who underwent RC and ‘super-extended’ LND with intent-to-cure for urothelial carcinoma of the bladder between 2002 and 2019 were examined. Inclusion criteria were(a) clinical stage Ta, Tis,or T1, (b) muscle present and not involved,(c) no prior diagnosis of T2 disease, (d) no prior neoadjuvant therapy, and (e) super-extended lymphadenectomy performed to level of IMA with mapping information available. Logistic regression analysis was used to evaluate for predictors of node metastasis. Results: A total of 223 patients met inclusion criteria with a median follow up of 8.2 years (IQR 4.1-10.7). Lymph node metastasis was identified in 8.1% (18/223) of the cohort. Nodal metastasis was present in 0 patients with cTis, 0 patients with cTa, and 11.6% (18/155) of patients with cT1 disease. Of the 18 patients with LNM in cT1 disease, 61% (11/18) had positive nodes below the common ileac vessel bifurcation, 6% (1/18) had positive nodes below the level of aortic bifurcation, and 33% (6/18) had distant metastasis to lymph nodes beyond aortic bifurcation. No skip metastasis were identified. After RC, 89% of cT1 with nodal metastasis had muscle invasive disease. On logistic regression analysis, presence of LVI on TURBT specimen was a significant predictor of LNM (OR 6.8, CI 2.2-20.9). Five-year RFS was 91%, 82%, and 61% in patients with pNMIBC, cNMIBC, and pMIBC, respectively. Conclusions: Routine lymph node dissection is necessary in patients undergoing RC for cT1 disease due to risk of upstaging and LNMs. Presence of LVI in TURBT specimen of cNMIBC is a predictor of nodal metastasis. In patients with nodal disease, metastasis beyond the limits of a standard lymph node template occurred in two-thirds of patients, however a standard pelvic node dissection would have identified all patients with node positive disease.

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Zhiming Liu, Yaping Wan, Jichang Sha e Xiaohua Yang. "A Peer-to-Peer System Super Node Election Mechanism". International Journal of Information Processing and Management 1, n. 2 (31 ottobre 2010): 58–67. http://dx.doi.org/10.4156/ijipm.vol1.issue2.8.

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Trenkic, V., C. Christopoulos e T. M. Benson. "New symmetrical super-condensed node for the TLM method". Electronics Letters 30, n. 4 (17 febbraio 1994): 329–30. http://dx.doi.org/10.1049/el:19940207.

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You, Lantao, Jianfeng Jiang e Yuejuan Han. "Super Spanning Connectivity of the Folded Divide-and-SwapCube". Mathematics 11, n. 11 (5 giugno 2023): 2581. http://dx.doi.org/10.3390/math11112581.

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A k*-container of a graph G is a set of k disjoint paths between any pair of nodes whose union covers all nodes of G. The spanning connectivity of G, κ*(G), is the largest k, such that there exists a j*-container between any pair of nodes of G for all 1≤j≤k. If κ*(G)=κ(G), then G is super spanning connected. Spanning connectivity is an important property to measure the fault tolerance of an interconnection network. The divide-and-swap cube DSCn is a newly proposed hypercube variant, which reduces the network cost from O(n2) to O(nlog2n) compared with the hypercube and other hypercube variants. The folded divide-and-swap cube FDSCn is proposed based on DSCn to reduce the diameter of DSCn. Both DSCn and FDSCn possess many better properties than hypercubes. In this paper, we investigate the super spanning connectivity of FDSCn where n=2d and d≥1. We show that κ*(FDSCn)=κ(FDSCn)=d+2, which means there exists an m-DPC(node-disjoint path cover) between any pair of nodes in FDSCn for all 1≤m≤d+2.

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Zhao, Yafei. "Analysis of Supply Chain Super-Network Coordination Considering Risk Function in Emergencies". Frontiers in Business, Economics and Management 2, n. 3 (16 dicembre 2021): 93–99. http://dx.doi.org/10.54097/fbem.v2i3.205.

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Economic globalization continues to expand the scope of the supply chain network structure, while increasing its own complexity, as well as the uncertainty of the network operating environment and the fragility of the operating system. An emergency on a single node or line in the supply chain network usually affects other nodes in the supply chain and brings significant risks to the enterprise. The impact of other nodes can cause the entire supply chain network to collapse, especially if the production and operation of a single-node enterprise in the supply chain may be interrupted or malfunctioned, especially in the event of an emergency. It also threatens development greatly, affecting the production and livelihoods of enterprises in the supply chain and people's lives, and has a major negative impact on social and economic development. These emergencies continue to affect the supply chain network, and the originally fragile companies face greater risks. This paper establishes a supply chain hyper-network model considering the risk function under emergencies. When an emergency occurs, the demand in the consumer market decreases or increases due to different emergencies. Therefore, revenue sharing contracts are used to coordinate, build a supply chain network model under emergencies, and solve them to obtain a model equilibrium Solution, that is, the new equilibrium state after the occurrence of an emergency.

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Padmapriya, T., e S. V. Manikanthan. "An enhanced distributed evolved node-b architecture in 5G tele-communications network". International Journal of Engineering & Technology 7, n. 2.8 (19 marzo 2018): 248. http://dx.doi.org/10.14419/ijet.v7i2.8.10419.

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To meet the regularly expanding versatile information movement request, the portable administrators are conveying a heterogeneous system with numerous entrance innovations and an ever-increasing number of base stations to build the system scope and limit. Be that as it may, the base stations are disconnected from each other, so unique sorts of radio assets and equipment assets can't be shared and dispensed inside the general system agreeably. The versatile administrators are in this manner confronting expanding system operational costs and a high framework control utilization. In this paper, a brought together radio access organize design, alluded to as the super base station (super BS), is proposed, as a conceivable answer for a vitality productive fifth-age (5G) versatile framework. The super base station decouples the coherent capacities and physical elements of conventional base stations, so unique sorts of framework assets can be on a level plane shared and factually multiplexed among all the virtual base stations all through the whole framework. The framework structure and principle functionalities of the super BS are portrayed. Some key advances for framework usage, i.e., the asset pooling, continuous virtualization, versatile equipment asset assignment are likewise featured.

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Wang, Shu Guang. "Power Supply Programs and Improvement of the Wireless Sensor Network in Environmental Monitoring". Advanced Materials Research 588-589 (novembre 2012): 990–93. http://dx.doi.org/10.4028/www.scientific.net/amr.588-589.990.

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This document explains how to determine the power supply programs of WSN in environmental monitoring. The power consumption of Wireless sensor networks node in environmental monitor is estimated. The characteristics of several battery and super capacitor are analyzed; feasibility of long-term and stable power supply to the node is proofed. Different power supply programs are given according to the requirements of the working time and cost performance. The program which uses solar cells with maximum power point tracking technology, and use super-capacitor to store energy, is probed mainly. The circuit is design .It is tried in field.

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Benčić, Federico Matteo, e Ivana Podnar Žarko. "Aurora-Trinity: A Super-Light Client for Distributed Ledger Networks Extending the Ethereum Trinity Client". Sensors 22, n. 5 (25 febbraio 2022): 1835. http://dx.doi.org/10.3390/s22051835.

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Light clients for distributed ledger networks can verify blockchain integrity by downloading and analyzing blockchain headers. They are designed to circumvent the high resource requirements, i.e., the large bandwidth and memory requirements that full nodes must meet, which are unsuitable for consumer-grade hardware and resource-constrained devices. Light clients rely on full nodes and trust them implicitly. This leaves them vulnerable to various types of attacks, ranging from accepting maliciously forged data to Eclipse attacks. We introduce Aurora-Trinity, a novel version of light clients that addresses the above-mentioned vulnerability by relying on our original Aurora module, which extends the Ethereum Trinity client. The Aurora module efficiently discovers the presence of malicious or Byzantine nodes in distributed ledger networks with a predefined and acceptable error rate and identifies at least one honest node for persistent or ephemeral communication. The identified honest node is used to detect the latest canonical chain head or to infer the state of an entry in the ledger without downloading the header chain, making the Aurora-Trinity client extremely efficient. It can run on consumer-grade hardware and resource-constrained devices, as the Aurora module consumes about 0.31 MB of RAM and 1 MB of storage at runtime.

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Zhou, Xiaofeng, Lu Liu, Zhangming Zhu e Duan Zhou. "A Routing Aggregation for Load Balancing Network-on-Chip". Journal of Circuits, Systems and Computers 24, n. 09 (27 agosto 2015): 1550137. http://dx.doi.org/10.1142/s0218126615501376.

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A routing aggregation (RA) is proposed for load balancing network-on-chip (NoC). The computing nodes with dense traffic and long distance in network are gathered into the same routing node to form a super router. A load balancing routing algorithm for super router is presented to improve the overall performance of NoC. A simulation platform using System C is presented to confirm the feasibility of the proposed design in 2D mesh. The simulation results show that the proposed RA design can reduce the average packet latency and the standard deviation of host link utilization 8% and 33%, respectively compared with the reported routing methods. The area cost and power consumption compared with the reported schemes are 22% and 12% less, respectively.

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Lamtzidis, Odysseas, Dennis Pettas e John Gialelis. "A Novel Combination of Distributed Ledger Technologies on Internet of Things: Use Case on Precision Agriculture". Applied System Innovation 2, n. 3 (18 settembre 2019): 30. http://dx.doi.org/10.3390/asi2030030.

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Internet-of-Things (IoT) is an enabling technology for numerous initiatives worldwide such as manufacturing, smart cities, precision agriculture, and eHealth. The massive field data aggregation of distributed administered IoT devices allows new insights and actionable information for dynamic intelligent decision-making. In such distributed environments, data integrity, referring to reliability and consistency, is deemed insufficient and requires immediate facilitation. In this article, we introduce a distributed ledger (DLT)-based system for ensuring IoT data integrity which securely processes the aggregated field data. Its uniqueness lies in the embedded use of IOTA’s ledger, called “The Tangle”, used to transmit and store the data. Our approach shifts from a cloud-centric IoT system, where the Super nodes simply aggregate and push data to the cloud, to a node-centric system, where each Super node owns the data pushed in a distributed and decentralized database (i.e., the Tangle). The backend serves as a consumer of data and a provider of additional resources, such as administration panel, analytics, data marketplace, etc. The proposed implementation is highly modularand constitutes a significant contribution to the Open Source communities, regarding blockchain and IoT.

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30

Tang, Chun Ping, e Liang Liang Zhang. "Influence of Cross Beam on the Stress of Joints in A-Type Pier of a Bridge". Advanced Materials Research 446-449 (gennaio 2012): 1329–32. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.1329.

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Non-linear numerical simulation is done on A-type super high pier by using finite element analysis software ANSYS, obtaining the node stress distribution under load in the node area taken in the sequential layer analysis of overall mode. The conclusion is mainly as follows: the change of width and thickness of cross beam exerts slight impact on the maximum stress of the node while the change of cross beam depth impacts the node stress much. From the computation, it can be concluded that proper reduction of cross beam depth is beneficial to the node stress.

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Laplante, Caroline, Fang Huang, Irene R. Tebbs, Joerg Bewersdorf e Thomas D. Pollard. "Molecular organization of cytokinesis nodes and contractile rings by super-resolution fluorescence microscopy of live fission yeast". Proceedings of the National Academy of Sciences 113, n. 40 (19 settembre 2016): E5876—E5885. http://dx.doi.org/10.1073/pnas.1608252113.

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Cytokinesis in animals, fungi, and amoebas depends on the constriction of a contractile ring built from a common set of conserved proteins. Many fundamental questions remain about how these proteins organize to generate the necessary tension for cytokinesis. Using quantitative high-speed fluorescence photoactivation localization microscopy (FPALM), we probed this question in live fission yeast cells at unprecedented resolution. We show that nodes, protein assembly precursors to the contractile ring, are discrete structural units with stoichiometric ratios and distinct distributions of constituent proteins. Anillin Mid1p, Fes/CIP4 homology-Bin/amphiphysin/Rvs (F-BAR) Cdc15p, IQ motif containing GTPase-activating protein (IQGAP) Rng2p, and formin Cdc12p form the base of the node that anchors the ends of myosin II tails to the plasma membrane, with myosin II heads extending into the cytoplasm. This general node organization persists in the contractile ring where nodes move bidirectionally during constriction. We observed the dynamics of the actin network during cytokinesis, starting with the extension of short actin strands from nodes, which sometimes connected neighboring nodes. Later in cytokinesis, a broad network of thick bundles coalesced into a tight ring around the equator of the cell. The actin ring was ∼125 nm wide and ∼125 nm thick. These observations establish the organization of the proteins in the functional units of a cytokinetic contractile ring.

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32

Shanmugam, Subbiah, Sujay Susikar e Arun Victor Jebasingh. "Assessment of level IIB lymph nodes in oral cancer - Should we spare or care?" Asian Journal of Oncology 9 (18 luglio 2023): 8. http://dx.doi.org/10.25259/asjo-2022-40-(395).

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Abstract (sommario):

Objectives The extent of neck dissection over the years has evolved from a radical neck dissection to a super-selective neck dissection with an attempt to achieve a balance between oncological safety and acceptable morbidity. There is an ongoing debate concerning dissection of level IIB in both node negative and positive patients, primarily due to the low incidence of metastasis in this region and possible spinal accessory nerve injury. In this study, we intended to find the rate of metastasis to level IIB nodes in patients who were treated with neck dissection for oral cancers. Material and Methods Patients with squamous cell carcinoma of the oral cavity who underwent neck dissection were analyzed. Patients with clinically node negative (cN0) disease underwent selective neck dissection (SND), whereas patients with clinically node positive (cN+) disease underwent modified radical neck dissection (MRND). Results Out of the total 34 patients, 12 patients underwent MRND and 22 patients underwent SND. In the MRND group, three patients (25%) had positive level IIB nodes. The median number of IIB nodes removed was two and the median number of positive IIB nodes was one. In the SND group, the median number of IIB nodes removed was three and none of the patients had positive level IIB node. Conclusion In oral cancer with cN+, routine dissection of level IIB nodes has both therapeutic and prognostic values. Whereas, in patients with cN0, routine dissection of level IIB nodes can be omitted. Further large volume studies are needed on cN0 disease.

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33

CHEN, Jun. "Evaluation mechanism for preventing free-ider in super-node overlay". Journal of Computer Applications 28, n. 2 (10 luglio 2008): 360–62. http://dx.doi.org/10.3724/sp.j.1087.2008.00360.

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34

Istwal, Yasha, e Shashi Kant Verma. "Dual Cluster Head Routing Protocol with Super Node in WSN". Wireless Personal Communications 104, n. 2 (29 ottobre 2018): 561–75. http://dx.doi.org/10.1007/s11277-018-6034-5.

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Liu, Rui, Sheng Zhang, Donghui Zhang, Xuefeng Zhang e Xiaoling Bao. "Node Importance Identification for Temporal Networks Based on Optimized Supra-Adjacency Matrix". Entropy 24, n. 10 (29 settembre 2022): 1391. http://dx.doi.org/10.3390/e24101391.

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The research on node importance identification for temporal networks has attracted much attention. In this work, combined with the multi-layer coupled network analysis method, an optimized supra-adjacency matrix (OSAM) modeling method was proposed. In the process of constructing an optimized super adjacency matrix, the intra-layer relationship matrixes were improved by introducing the edge weight. The inter-layer relationship matrixes were formed by improved similarly and the inter-layer relationship is directional by using the characteristics of directed graphs. The model established by the OSAM method accurately expresses the structure of the temporal network and considers the influence of intra- and inter-layer relationships on the importance of nodes. In addition, an index was calculated by the average of the sum of the eigenvector centrality indices for a node in each layer and the node importance sorted list was obtained from this index to express the global importance of nodes in temporal networks. The experimental results on three real temporal network datasets Enron, Emaildept3, and Workspace showed that compared with the SAM and the SSAM methods, the OSAM method has a faster message propagation rate and larger message coverage and better SIR and NDCG@10 indicators.

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Danforth, Rachel, e Roman Skoracki. "Intra-abdominal donors for vascularized lymph node transfer: an update and review". Plastic and Aesthetic Research 8, n. 8 (2022): 48. http://dx.doi.org/10.20517/2347-9264.2021.34.

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Lymphedema continues to be a very challenging clinical problem. While compression and physical therapy remain the foundation of treatment, recent advances in microsurgery and super-microsurgery have allowed for the development of promising surgical options. One of these options is vascularized lymph node transfer (VLNT), which has gained significant popularity over recent years. However, there is no consensus on the ideal donor lymph node basin for VLNT. In addition, the most commonly reported donor sites, including the groin, supraclavicular, submental, and lateral thoracic nodes, carry the risk of iatrogenic lymphedema and/or visible scarring. In order to avoid these risks, the use of intra-abdominal donor sites for VLNT has been pursued. This article reviews the reported techniques and outcomes for each of the intra-abdominal donor sites for VLNT.

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Jiang, Peng, Xihao Dou, Jun Dong, Hexiang Huang e Yuanyuan Wang. "Terminal Node of Active Distribution Network Correlation Compactness Model and Application Based on Complex Network Topology Graph". Sustainability 15, n. 1 (29 dicembre 2022): 595. http://dx.doi.org/10.3390/su15010595.

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Multiple nodes (such as distributed generation (DG), electric vehicles (EV), energy storage (ES), flexible loads (FL), etc.) are connected to the active distribution network (ADN), which changes its original operational mode. According to the bidirectional current and low-voltage transmission mode, this study proposed a multi voltage and multi electricity flat loop network, AC/DC (Alternating Current/ Direct Current) hybrid network, unified interface and flexible self-organizing network based on Complex network theory. First, the ADN complex network topology of various nodes is established based on the actual grid connected terminal nodes and power flow sensitivity algorithm. Second, using the TOPSIS model, the influence factor matrix of weighted directed network is established. The matrix can be used to guide the formulation of the distribution network operation mode, and the robustness and reliability of this paper are verified by using the standard multi voltage level main distribution hybrid model provided by the Panda Power website as the verification method. Finally, using the influence maximization calculation model of the New Creedy algorithm, the node correlation matrix is expanded to form a super family region set of active distribution network. The results show that the seven nodes in this paper have high correlation, while the other nodes have low correlation. In addition, the change of reactive power has little impact on other nodes, for a node with a change rate of 0, it is obviously not in the same power supply family as node 1, and theoretically it may not have a topological relationship, be a power generation node, or be completely independent. Analyzing the relationship between nodes has a guiding significance for power supply recovery and interaction in distribution network reconfiguration.

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Mary Jeya Jothi, R., S. Emalda Roslin e N. M. Nandhitha. "Super Strongly Perfect Graphs in the Selection of Cluster Heads in Wireless Sensor Networks". Applied Mechanics and Materials 591 (luglio 2014): 206–10. http://dx.doi.org/10.4028/www.scientific.net/amm.591.206.

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Wireless sensor network comprises of dense sensor nodes which are randomly deployed. Major challenges in WSN are limited battery source and computation capacity. Considerable research has been carried out in the area of maximizing battery lifetime by reducing the energy consumption. Once such proposed technique involves hierarchical topology control. Conventionally proposed algorithm for hierarchical topology control involves computationally intensive soft computing tools. It leads to higher energy consumption in the sink node. Hence it necessitates computationally less intensive technique for cluster head selection. In this paper, an efficient cluster head selection is proposed using minimal dominating set in Super Strongly Perfect (SSP) graph.

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Wu, Jun Hui, Ting Hu, Jie Chen, Hui Ping Si e Kai Yan Lin. "Design of Greenhouse Environment Measurement and Control System Based on Super Wi-Fi". Applied Mechanics and Materials 707 (dicembre 2014): 208–13. http://dx.doi.org/10.4028/www.scientific.net/amm.707.208.

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In recent years, ZigBee technology is widely used in the greenhouse environment measurement and control system, however, its poor penetration and low anti-interference capacity limit its more applications. To solve these problems, a greenhouse environment measurement and control system based on super Wi-Fi was designed. In this paper the concept of super Wi-Fi is introduced, the superiority of super Wi-Fi is showed though comparing with several other communication technologies, protocol stack of super Wi-Fi is also developed. The structure of greenhouse environment measurement and control system based on super Wi-Fi is also introduced and terminal wireless sensor network node was designed, finally this paper draws the conclusion that this system has the features of long transmission distance, good anti-jamming, low power consumption,but it has poor real-time performance, which need to be improved.

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Li, Qiang, Liang Bin Chen e Yu Ke Chen. "An Efficient P2P Overlay Network Model Based on Clustering". Applied Mechanics and Materials 325-326 (giugno 2013): 1742–45. http://dx.doi.org/10.4028/www.scientific.net/amm.325-326.1742.

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The P2P system was build with the topological structure of the network at the application layer, network topological structure for an P2P system has a very important significance. There is currently a wide range of different topology structure of P2P network, HCPON uses two-level clustering structure, based on HCPON, we propose an efficient overlay network model based on clustering (PONM), it solves the problem that the super node only uses a single backup node as a redundant backup leading system robustness improvement is limited in unstructured P2P system. The model through a directory server to manage all nodes on the network, The results of the simulation demonstrates that,compared with HCPON, PONM has a relatively stable path stretching rate and lower average link pressure, can meet the requirements of Large-Scale P2P streaming media service needs.

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41

Trenkic, V., C. Christopoulos e T. M. Benson. "Theory of the symmetrical super-condensed node for the TLM method". IEEE Transactions on Microwave Theory and Techniques 43, n. 6 (giugno 1995): 1342–48. http://dx.doi.org/10.1109/22.390192.

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42

Thakkar, Shital P., e Aditya Kumar Jain. "Super Node Approach to Enhance Performance in Mobile Ad-hoc Network". International Journal of Engineering Trends and Technology 51, n. 3 (25 settembre 2017): 120–24. http://dx.doi.org/10.14445/22315381/ijett-v51p221.

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Sun, Xiao Yu, e Zhen Qing Wang. "The Application of Multi-Node Cable Element". Advanced Materials Research 430-432 (gennaio 2012): 1498–501. http://dx.doi.org/10.4028/www.scientific.net/amr.430-432.1498.

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A non-linear finite element model of inclined cables, cables with non-leveled supports, in the large displacement and deformation fields is proposed for computing the dynamic response to wind loads which blow in arbitrary direction. The temperature-dependent elastoplastic behaviors of cables were taken into account in the nonlinear finite element model. This model was used for an extensive looping factor parameter study.A parametric super element model for cable passing through multiple pulleys is presented in this study for the static analysis of structures. The proposed formulation,which accounts for longitudinal inertia forces, allows to spot the circumstances when the simplified approach, adopting longitudinal mode condensation, becomes too crude.

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Kaur, Manpreet, Shikha Gupta, Deepak Kumar, Chaman Verma, Bogdan-Constantin Neagu e Maria Simona Raboaca. "Delegated Proof of Accessibility (DPoAC): A Novel Consensus Protocol for Blockchain Systems". Mathematics 10, n. 13 (3 luglio 2022): 2336. http://dx.doi.org/10.3390/math10132336.

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As the backbone of every blockchain application, the consensus protocol is impacted by numerous risks, namely resource requirements and energy consumption, which limit the usage of blockchain. Applications such as IoT/IIoT cannot use these high-cost consensus methods due to limited resources. Therefore, we introduce Delegated Proof of Accessibility (DPoAC), a new consensus technique that employs secret sharing, PoS with random selection, and an interplanetary file system (IPFS).DPoAC is decomposed into two stages. During the initial stage, a secret is generated by a randomly chosen super node and divided into n shares. These shares are encrypted and stored in different n nodes on the IPFS network. The nodes will compete to access these shareholders to reconstruct the secret. The winning node will be awarded block generation rights. PoS with random selection is used in the second stage to compute the appropriate hash value and construct a block with valid transactions. In this novel approach, a node with few computational resources and small stakes can still obtain block generation rights by providing access to secret shares and reconstructing the secret, making the system reasonably fair. We qualitatively analyze and compare our scheme based on performance parameters against existing mainstream consensus protocols in the context of IoT/IIoT networks.

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Politova, Alla K., Evgeny F. Kira, Nikolay V. Bolomatov, Vycheslav M. Kitayev, Sergey V. Bruslik, Tatyana I. Sviridova, Ekaterina A. Slabozhankina, Yulia L. Amelina e Alexandra A. Politova. "Comparative evaluation of combined and isolated applications of high-intensity focused ultrasound and super-selective uterine artery embolization in treatment of patients with uterine fibroids". Journal of obstetrics and women's diseases 71, n. 1 (15 gennaio 2022): 71–78. http://dx.doi.org/10.17816/jowd71360.

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Abstract (sommario):

BACKGROUND: Uterine fibroids are a benign tumor found in two out of three women of reproductive age. The most modern methods of organ preserving treatment of uterine fibroids are uterine artery embolization, which is a minimally invasive procedure, and high intensity focused ultrasound (HIFU) ablation, which is a non-invasive procedure. According to the literature and our own experience, uterine artery embolization is ineffective in 17.1% of cases and HIFU ablation in 16% of cases, mainly due to the peculiarities of blood supply to myomatous nodes. AIM: The aim of this study was to compare the effectiveness of the treatment of uterine fibroids using an isolated HIFU ablation technique and combined sequential application of selective embolization of uterine artery supplying the myomatous node and HIFU ablation. MATERIALS AND METHODS: This study included two groups of patients with symptomatic uterine fibroids. Group 1 consisted of 133 patients treated using the isolated HIFU ablation, and group 2 comprised 90 patients treated sequentially using supplying the myomatous node and HIFU ablation. Age and clinical manifestations of the disease (menometrorrhagia, pain syndrome, impaired function of adjacent organs, anemia) did not differ in the both groups. RESULTS: The following parameters were different in the study groups: the duration of ultrasound ablation (p 0.005) and the decrease in the volume of myomatous nodes in one, six and 12 months after surgery (p 0.001). The duration of ultrasound ablation was 610.84 (56.26) minutes in group 1 and 215.28 (70.57) minutes in group 2. In group 1, the decrease in the volume of myomatous nodes was 12.2% in one month and 58.97% in 12 months after surgery, compared to the initial value. In group 2, the decrease was 42.9% and 67.5%, respectively. CONCLUSIONS: The combined treatment of uterine fibroids using supplying the myomatous node and FUVI ablation techniques allowed for reducing the duration of the FUVI ablation operation three times and the volume of the node by 67.5% within one year compared to group 1 (58.97%).

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Gao, Ming Peng, e Ying Xu. "Hierarchical and Hybrid Topology P2P Model Based on Chord Protocol and Interest Subnet". Advanced Materials Research 219-220 (marzo 2011): 8–12. http://dx.doi.org/10.4028/www.scientific.net/amr.219-220.8.

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Abstract (sommario):

Structured and unstructured p2p topology model both have their own advantages and disadvantages. According to this issue, hierarchical and hybrid topology p2p mode based on chord protocol and interest subnet is proposed and established, whose upper layer makes use of bilateral search on chord loop and lower layer builds interest subnet where register node records search requests and results and stores popular resource table. It is also important to maintain model. The secondary distribution and networking strategy about new node help it join in interest subnet quickly. And the way of backing up register node and super node make the system’s robustness strong. It is showed by performance evaluation that this model can reduce query delay and improve the efficiency of resource location to some extend.

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Xia, Ju-wei, Yun-long Yao, Xiao-shun Wu e Yuan-hong Chen. "Calculation and Analysis of Hydraulic Automatic Climbing Formwork Equipment for Super-high Building Construction". Journal of the International Association for Shell and Spatial Structures 62, n. 1 (1 marzo 2021): 24–36. http://dx.doi.org/10.20898/j.iass.2021.003.

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Abstract (sommario):

Hydraulic automatic climbing formwork equipment is widely used in super-high-rise building construction due to its advantages of simple operation, fast construction speed, low cost, and high automation. Quantitative calculation of the mechanical state of climbing formwork equipment is an important technical means of ensuring safety during super-high building construction. This work thus introduces a hydraulic climbing formwork equipment structure and subsequently analyzes the construction process and the main working state of the hydraulic climbing formwork equipment. Then, for the design of the outer climbing frame of the hydraulic climbing formwork, an approximate analytical method for solving the node reaction force is proposed. Finally, combined with the actual engineering, the calculation results of the approximate analytical method and the finite element method are compared, and the calculation and analysis methods of the hydraulic climbing formwork equipment frame and key nodes are introduced. The calculation analysis process and related conclusions can be used as engineering reference for similar projects.

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48

NGUYEN-THOI, T., G. R. LIU e H. NGUYEN-XUAN. "ADDITIONAL PROPERTIES OF THE NODE-BASED SMOOTHED FINITE ELEMENT METHOD (NS-FEM) FOR SOLID MECHANICS PROBLEMS". International Journal of Computational Methods 06, n. 04 (dicembre 2009): 633–66. http://dx.doi.org/10.1142/s0219876209001954.

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Abstract (sommario):

A node-based smoothed finite element method (NS-FEM) for solving solid mechanics problems using a mesh of general polygonal elements was recently proposed. In the NS-FEM, the system stiffness matrix is computed using the smoothed strains over the smoothing domains associated with nodes of element mesh, and a number of important properties have been found, such as the upper bound property and free from the volumetric locking. The examination was performed only for two-dimensional (2D) problems. In this paper, we (1) extend the NS-FEM to three-dimensional (3D) problems using tetrahedral elements (NS-FEM-T4), (2) reconfirm the upper bound and free from the volumetric locking properties for 3D problems, and (3) explore further other properties of NS-FEM for both 2D and 3D problems. In addition, our examinations will be thorough and performed fully using the error norms in both energy and displacement. The results in this work revealed that NS-FEM possesses two additional interesting properties that quite similar to the equilibrium FEM model such as: (1) super accuracy and super-convergence of stress solutions; (2) similar accuracy of displacement solutions compared to the standard FEM model.

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S., Manishankar, e S. Sathayanarayana. "Performance evaluation and resource optimization of cloud based parallel Hadoop clusters with an intelligent scheduler." International Journal of Engineering & Technology 7, n. 4.20 (29 novembre 2018): 4220. http://dx.doi.org/10.14419/ijet.v7i4.13372.

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Abstract (sommario):

Data generated from real time information systems are always incremental in nature. Processing of such a huge incremental data in large scale requires a parallel processing system like Hadoop based cluster. Major challenge that arises in all cluster-based system is how efficiently the resources of the system can be used. The research carried out proposes a model architecture for Hadoop cluster with additional components integrated such as super node who manages the clusters computations and a mediation manager who does the performance monitoring and evaluation. Super node in the system is equipped with intelligent or adaptive scheduler that does the scheduling of the job with optimal resources. The scheduler is termed intelligent as it automatically decides which resource to be taken for which computation, with the help of a cross mapping of resource and job with a genetic algorithm which finds the best matching resource. The mediation node deploys ganglia a standard monitoring tool for Hadoop cluster to collect and record the performance parameters of the Hadoop cluster. The system over all does the scheduling of different jobs with optimal usage of resources thus achieving better efficiency compared to the native capacity scheduler in Hadoop. The system is deployed on top of OpenNebula Cloud environment for scalability.

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Zhao, Qing, Zhen Xu e Lei Yang. "An Improvement of DV-Hop Localization Algorithm Based on Cyclotomic Method in Wireless Sensor Networks". Applied Sciences 13, n. 6 (11 marzo 2023): 3597. http://dx.doi.org/10.3390/app13063597.

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Abstract (sommario):

Location information is one of the crucial and essential elements for monitoring data in wireless sensor networks. The distance vector-hop (DV-Hop) localization algorithm is of practical importance in improving its localization performance. To achieve global optimization, a DV-Hop algorithm based on the cyclotomic method and weighted normalization, also known as CMWN-DV-Hop, is nominated in this paper. Therefore, the segmentation and weighting factors are introduced and normalized. The weighted recursive least-squares (WRLS) algorithm is chosen to compute the coordinates of the unknown nodes. The effects of various factors on this algorithm are tested, including the number of nodes, the anchor node ratio, and the communication radius. The simulation results show that the proposed algorithm has a super performance in reducing the localization error.

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