Готові списки джерел за темами / VNE

Добірка наукової літератури з теми "VNE"

Автор: Grafiati
Опубліковано: 14 березня 2023

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Зміст

Ознайомтеся зі списками актуальних статей, книг, дисертацій, тез та інших наукових джерел на тему "VNE".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Статті в журналах з теми "VNE"

1

Daščioraitė, Diana, Karolina Stankevičiūtė, and Giedrė Jurkevičienė. "Epilepsija ir nėštumas. Literatūros apžvalga." Lithuanian General Practitioner 25, no. 2 (February 18, 2021): 116–20. http://dx.doi.org/10.37499/lbpg.626.

Повний текст джерела
Анотація:
Epilepsija yra viena labiausiai paplitusių lėtinių neurologinių ligų. Šia liga serga apie 12,5 mln. vaisingo amžiaus moterų. Epilepsija nėra kontraindikacija nėštumui ir dauguma sergančių epilepsija moterų pagimdo sveikus kūdikius. Pagrindinis visų epilepsija sergančių vaisingų moterų rūpestis yra rizika, susijusi su vaistų nuo epilepsijos (VNE) vartojimu nėštumo laikotarpiu. Dėl to tiek planuojant nėštumą, tiek nėštumo laikotarpiu būtina siekti kuo veiksmingesnio ir saugesnio gydymo nuo epilepsijos. Tačiau tiek nėščiai moteriai, tiek vaisiui gali pakenkti ir nekontroliuojami epilepsijos priepuoliai (EP). Todėl turėtų būti subalansuota rizika tarp nekontroliuojamų epilepsijos priepuolių ir VNE keliamos rizikos vaisiui ir motinai. Sergančių epilepsija moterų nėštumas turėtų būti planuotas, o planuojant nėštumą turėtų būti suteikta išsami ir įvairiapusė informacija. Vaisingo amžiaus moterims, sergančioms epilepsija, labai svarbus tinkamas kontracepcijos parinkimas, nes galima vaistų nuo epilepsijos ir geriamųjų kontraceptikų sąveika, dėl to gali būti tiek nepakankamas hormoninių kontraceptikų veiksmingumas, tiek vaistų nuo epilepsijos veiksmingumas. Planuojant nėštumą, svarbu apsvarstyti gydymo VNE indikacijas ir VNE pasirinkimą. Jei įmanoma, vartojamą VNE reikia keisti saugesniu VNE. Tačiau VNE keitimas turėtų būti atliktas iki nėštumo, numatant pakankamai laiko, kad būtų galima įvertinti naujo VNE veiksmingumą bei nustatyti mažiausią veiksmingą VNE dozę dar prieš pastojimą. Rizika vaisiui vartojant VNE susijusi su intrauterininio vystymosi sulėtėjimu, įgimtais apsigimimais, padidėjusia neurologinio vystymosi, pažinimo funkcijų sutrikimo rizika. Skirtingų VNE keliama rizika vaisiui skiriasi. Didžiausia vaisiaus apsigimimų rizika susijusi su valproato vartojimu, mažiausia – su lamotrigino, levetiracetamo ir okskarbazepino vartojimu. Siekiant sumažinti šią riziką, pirmąjį nėštumo trimestrą rekomenduojamas 4–5 mg/p. folio rūgšties vartojimas. Epilepsijos diagnozė pati savaime nėra kontraindikacija gimdyti natūraliais takais. Atsižvelgiant į žinomą žindymo naudą motinai ir kūdikiui, ir tyrimus, kurie rodo, kad, vartojant VNE, dažniausiai nenustatoma jokio neigiamo žindymo poveikio, visos epilepsija sergančios ir VNE vartojančios gimdyvės, turėtų būti skatinamos maitinti krūtimi, išskyrus labai retus atvejus.
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Li, Meng, and MeiLian Lu. "A Virtual Network Embedding Algorithm Based On Double-Layer Reinforcement Learning." Computer Journal 64, no. 6 (May 22, 2021): 973–89. http://dx.doi.org/10.1093/comjnl/bxab040.

Повний текст джерела
Анотація:
Abstract Virtual network embedding (VNE) algorithms dominate the effectiveness of resource sharing in network virtualization. Heuristic embedding algorithms generally make embedding decisions by artificially specified strategies, in which the node importance is measured by simply summing or multiplying several node attributes. However, the contributions of different attributes may be combined through complex functional relationships. The reinforcement learning-based VNE algorithms can optimize node embedding. However, the existing algorithms only consider the local node attributes, and only simple shortest path-based embedding policy is adopted for link embedding, resulting limited embedding effects. To overcome the above defects, we propose a double-layer reinforcement learning-based VNE algorithm (DRL-VNE). In DRL-VNE, both the global and local node attributes are extracted to represent the status of network nodes, then a policy network is constructed to optimize node embedding, and the other policy network is designed to optimize link embedding. The performance of DRL-VNE is evaluated under different network scenarios and is compared with that of heuristic and machine learning-based VNE algorithms. Simulation results show that in hierarchical network scenario, the request acceptance ratio and the resource utilization of DRL-VNE are respectively improved by 14% and by 27% compared with the best performance comparison algorithm.
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Zhang, Qiang, Matthew K. Burrage, Elena Lukaschuk, Mayooran Shanmuganathan, Iulia A. Popescu, Chrysovalantou Nikolaidou, Rebecca Mills, et al. "Toward Replacing Late Gadolinium Enhancement With Artificial Intelligence Virtual Native Enhancement for Gadolinium-Free Cardiovascular Magnetic Resonance Tissue Characterization in Hypertrophic Cardiomyopathy." Circulation 144, no. 8 (August 24, 2021): 589–99. http://dx.doi.org/10.1161/circulationaha.121.054432.

Повний текст джерела
Анотація:
Background: Late gadolinium enhancement (LGE) cardiovascular magnetic resonance (CMR) imaging is the gold standard for noninvasive myocardial tissue characterization but requires intravenous contrast agent administration. It is highly desired to develop a contrast agent–free technology to replace LGE for faster and cheaper CMR scans. Methods: A CMR virtual native enhancement (VNE) imaging technology was developed using artificial intelligence. The deep learning model for generating VNE uses multiple streams of convolutional neural networks to exploit and enhance the existing signals in native T1 maps (pixel-wise maps of tissue T1 relaxation times) and cine imaging of cardiac structure and function, presenting them as LGE-equivalent images. The VNE generator was trained using generative adversarial networks. This technology was first developed on CMR datasets from the multicenter Hypertrophic Cardiomyopathy Registry, using hypertrophic cardiomyopathy as an exemplar. The datasets were randomized into 2 independent groups for deep learning training and testing. The test data of VNE and LGE were scored and contoured by experienced human operators to assess image quality, visuospatial agreement, and myocardial lesion burden quantification. Image quality was compared using a nonparametric Wilcoxon test. Intra- and interobserver agreement was analyzed using intraclass correlation coefficients (ICC). Lesion quantification by VNE and LGE were compared using linear regression and ICC. Results: A total of 1348 hypertrophic cardiomyopathy patients provided 4093 triplets of matched T1 maps, cines, and LGE datasets. After randomization and data quality control, 2695 datasets were used for VNE method development and 345 were used for independent testing. VNE had significantly better image quality than LGE, as assessed by 4 operators (n=345 datasets; P <0.001 [Wilcoxon test]). VNE revealed lesions characteristic of hypertrophic cardiomyopathy in high visuospatial agreement with LGE. In 121 patients (n=326 datasets), VNE correlated with LGE in detecting and quantifying both hyperintensity myocardial lesions ( r =0.77–0.79; ICC=0.77–0.87; P <0.001) and intermediate-intensity lesions ( r =0.70–0.76; ICC=0.82–0.85; P <0.001). The native CMR images (cine plus T1 map) required for VNE can be acquired within 15 minutes and producing a VNE image takes less than 1 second. Conclusions: VNE is a new CMR technology that resembles conventional LGE but without the need for contrast administration. VNE achieved high agreement with LGE in the distribution and quantification of lesions, with significantly better image quality.
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Šmigelskytė, A., M. Remenčiūtė, G. Gelžinienė, and G. Jurkevičienė. "Potrauminės epilepsijos ypatumai." Neurologijos seminarai 22, no. 77 (January 14, 2019): 188–93. http://dx.doi.org/10.29014/ns.2018.23.

Повний текст джерела
Анотація:
Įvadas. Potrauminė epilepsija – galvos smegenų traumos (GST) sukeltas centrinės nervų sistemos sutrikimas, kuriam būdingas ilgalaikis polinkis kartotis epilepsijos priepuoliams (EP). GST yra dažniausia jaunų suaugusiųjų epilepsijos priežastis ir svarbus rizikos veiksnys vaikams, didinantis tikimybę susirgti 7 kartus. Potrauminė epilepsija Europos valstybėse sudaro nuo 2 iki 16 % visų epilepsijos atvejų. Tai yra ir viena sunkiausiai gydomų epilepsijos formų – net trečdaliui pacientų gydymas vaistais neefektyvus. Dėl šios priežasties neigiamai paveikiama pacientų gyvenimo kokybė, didėja sergamumas depresija ir nerimu. Tiriamieji ir tyrimo metodai. Atlikta retrospektyvi LSMUL KK Nervų sistemos ligų ambulatoriniame skyriuje 2014–2015 m. dėl potrauminės epilepsijos gydytų pacientų ambulatorinių kortelių duomenų analizė. Rinkti demografiniai (amžius, lytis) ir klinikiniai (GST sunkumas, laikotarpis nuo GST iki EP pasireiškimo, EP dažnis, gydymas vaistais nuo epilepsijos (VNE)) duomenys. Gautų duomenų statistinė analizė atlikta naudojant „Microsoft Excel“ ir SPSS 23 programas. Rezultatai. Tiriamųjų grupėje (n = 76) buvo 33 (43,3 %) moterys ir 43 (56,7 %) vyrai. Tiriamųjų amžiaus vidurkis – 45,2 ± 11,9 m. Laikotarpis nuo GST iki EP pasireiškimo vidutiniškai truko 5,5 ± 7,6 m. Per pirmuosius metus po GST EP pasireiškė 29 tiriamiesiems (38,2 %), per antruosius – 11 (14,5 %), per trečiuosius ir vėliau – 36 (47,3 %). Nenustatyta koreliacija tarp tiriamųjų amžiaus GST metu ir laikotarpio nuo GST iki EP pasireiškimo (r = - 0,01, p > 0,05). EP pasireiškė praėjus 8,0 ± 9,3 m. po lengvos GST, po vidutinės ar sunkios GST – 4,8 ± 7,7 m. (p > 0,05). EP ≥ 1 k./sav. kartojosi 2 (22,2 %) tiriamiesiems, patyrusiems lengvą GST, ir 3 (7,3 %) tiriamiesiems, patyrusiems vidutinę ar sunkią GST (p > 0,05); atitinkamai, &amp;lt; 1 sav. – ≥ 1 mėn. – 0 ir 10 (24,4 %); &amp;lt; 1 k./mėn. – 7 (77,8 %) ir 28 (68,3 %) (p > 0,05). Amžiaus vidurkis GST metu 1 VNE gydomų tiriamųjų buvo 26,3 ± 15,0 m., 2 VNE – 19,3 ± 12,3 m., 3 ir daugiau VNE – 14,6 ± 7,0 m. (p &amp;lt; 0,05). 1 VNE gydomų tiriamųjų amžiaus vidurkis GST metu skyrėsi nuo gydomų 2 ir 3 ar daugiau VNE (p &amp;lt; 0,05). Vienu VNE gydomi tiriamieji EP vidutiniškai patyrė 10,7 ± 19,0 priepuolių per metus, 2 VNE – 15,1 ± 26,6 priepuolio per metus, 3 ir daugiau VNE – 51,1 ± 54,0 priepuolius per metus (p &amp;lt; 0,05). Trimis ar daugiau VNE gydomi tiriamieji EP patirdavo dažniau nei gydomi 1 arba 2 VNE (p &amp;lt; 0,05). Išvados. EP prasidėdavo praėjus vidutiniškai 5 m. po GST. Per pirmuosius metus – trečdaliui, praėjus 3 m. ir daugiau – pusei tiriamųjų. Maždaug dešimtadalis patirdavo labai dažnus EP (daugiau kaip 1 k./sav.). Sąsaja tarp lyties, amžiaus GST metu, GST sunkumo ir laikotarpio nuo GST iki EP pasireiškimo nenustatyta, tačiau buvo stebima kryptinga tendencija EP pasireikšti ankstesniu laikotarpiu, jei tiriamasis patyrė vidutinę ar sunkią GST. Sąsaja tarp EP dažnio ir tiriamųjų lyties, amžiaus, amžiaus GST metu, traumos sunkumo ir laikotarpio nuo GST iki EP pasireiškimo nenustatyta. Sąsaja tarp lyties, GST sunkumo ir VNE skaičiaus taip pat nenustatyta. Vienu VNE gydomų tiriamųjų amžiaus vidurkis GST metu buvo didesnis nei gydomų dviem, trimis ar daugiau VNE. Trimis ir daugiau VNE gydomi tiriamieji dažniau patyrė EP, nei gydomi vienu ar dviem VNE.
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Zong, Yue, Chuan Feng, Yingying Guan, Yejun Liu, and Lei Guo. "Virtual Network Embedding for Multi-Domain Heterogeneous Converged Optical Networks: Issues and Challenges." Sensors 20, no. 9 (May 6, 2020): 2655. http://dx.doi.org/10.3390/s20092655.

Повний текст джерела
Анотація:
The emerging 5G applications and the connectivity of billions of devices have driven the investigation of multi-domain heterogeneous converged optical networks. To support emerging applications with their diverse quality of service requirements, network slicing has been proposed as a promising technology. Network virtualization is an enabler for network slicing, where the physical network can be partitioned into different configurable slices in the multi-domain heterogeneous converged optical networks. An efficient resource allocation mechanism for multiple virtual networks in network virtualization is one of the main challenges referred as virtual network embedding (VNE). This paper is a survey on the state-of-the-art works for the VNE problem towards multi-domain heterogeneous converged optical networks, providing the discussion on future research issues and challenges. In this paper, we describe VNE in multi-domain heterogeneous converged optical networks with enabling network orchestration technologies and analyze the literature about VNE algorithms with various network considerations for each network domain. The basic VNE problem with various motivations and performance metrics for general scenarios is discussed. A VNE algorithm taxonomy is presented and discussed by classifying the major VNE algorithms into three categories according to existing literature. We analyze and compare the attributes of algorithms such as node and link embedding methods, objectives, and network architecture, which can give a selection or baseline for future work of VNE. Finally, we explore some broader perspectives in future research issues and challenges on 5G scenario, field trail deployment, and machine learning-based algorithms.
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Wang, Cong, Ying Yuan, and Cong Wan. "A Fair Virtual Network Embedding Algorithm." Advanced Materials Research 1049-1050 (October 2014): 1454–57. http://dx.doi.org/10.4028/www.scientific.net/amr.1049-1050.1454.

Повний текст джерела
Анотація:
Efficient network resource utilization is crucial in Virtual Network Embedding (VNE) problem. The diversity of virtual topologies belong to various services providers (SPs) severely affects the efficiency of VNE algorithms and fairness between SPs. This paper proposes a fair VNE algorithm with a topological transformation mechanism. Such mechanism will transform virtual topology to reduce complexity. Then the algorithm will felicitously map the virtual network onto substrate network through a Disperse Particle Swarm Optimization (DPSO) based process. Simulation results show that due to the topological transformation procedure the algorithm can achieve more fairness than traditional VNE algorithms.
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Zheng, Yi, Srivatsan Ravi, Erik Kline, Sven Koenig, and T. K. Satish Kumar. "Conflict-Based Search for the Virtual Network Embedding Problem." Proceedings of the International Conference on Automated Planning and Scheduling 32 (June 13, 2022): 423–33. http://dx.doi.org/10.1609/icaps.v32i1.19828.

Повний текст джерела
Анотація:
In emerging network virtualization architectures, service providers will be able to create many heterogeneous virtual networks and offer customized end-to-end services by leasing shared resources from infrastructure providers. The Virtual Network Embedding (VNE) problem is central to such technology. It involves the proper allocation of CPU and bandwidth resources available in a physical substrate network to meet the demands of multiple virtual networks. Combinatorially, the VNE problem is a problem in resource management that is NP-hard to solve. In this paper, we present a novel version of the Conflict-Based Search (CBS) algorithm for solving the VNE problem. Our approach, called VNE-CBS, is inspired by the success of the CBS framework in the Multi-Agent Path Finding domain. We successfully address the unique challenges in applying the CBS framework to the VNE problem, and, in doing so, we pave the way for overcoming a crucial issue in Internet ossification via heuristic search methods. On the theoretical front, we show that, unlike many existing algorithms, our algorithm is complete and optimal. On the experimental front, we show that our algorithm significantly outperforms other state-of-the-art methods on various benchmark instances for both the offline and online versions of the VNE problem.
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Bouchair, Abderrahim, Belabbas Yagoubi, and Sid Ahmed Makhlouf. "A Driven Modern Portfolio Theory for Virtual Network Embedding in SDN-Enabled Cloud." Scalable Computing: Practice and Experience 23, no. 4 (December 24, 2022): 421–39. http://dx.doi.org/10.12694/scpe.v23i4.2010.

Повний текст джерела
Анотація:
Network virtualization (NV) has evolved systematically through the urge to share computing resources and improve service deployment in a large-scale environment. Virtual network embedding (VNE) is a well-established technology applied to reinforce the NV process, providing a devoted implementation for a particular case study. In cloud computing, integration of software-defined networking (SDN) has proved to be a practical support to the principal cloud utilities. In return, the SDN-enabled cloud offers innovative deployment techniques for network-based services, which increase the opportunity to efficiently incorporate new network management policies that solve the VNE problem. In this paper, the authors proposed a transition of modern portfolio theory (MPT) into a VNE approach that optimally addresses the selection and ranking of resources in data center networks (DCNs). Results analysis demonstrates the VNE approach's better performance versus similar methods in terms of acceptance ratio, runtime, and substrate resource utilization.
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Witt, Martin, René Thiemer, Anja Meyer, Oliver Schmitt, and Andreas Wree. "Main Olfactory and Vomeronasal Epithelium Are Differently Affected in Niemann-Pick Disease Type C1." International Journal of Molecular Sciences 19, no. 11 (November 12, 2018): 3563. http://dx.doi.org/10.3390/ijms19113563.

Повний текст джерела
Анотація:
Introduction: Olfactory impairment is one of the earliest symptoms in neurodegenerative disorders that has also been documented in Niemann-Pick disease type C1 (NPC1). NPC1 is a very rare, neurovisceral lipid storage disorder, characterized by a deficiency of Npc1 gene function that leads to progressive neurodegeneration. Here, we compared the pathologic effect of defective Npc1 gene on the vomeronasal neuroepithelium (VNE) with that of the olfactory epithelium (OE) in an NPC1 mouse model. Methods: Proliferation in the VNE and OE was assessed by applying a bromodeoxyuridine (BrdU) protocol. We further compared the immunoreactivities of anti-olfactory marker protein (OMP), and the lysosomal marker cathepsin-D in both epithelia. To investigate if degenerative effects of both olfactory systems can be prevented or reversed, some animals were treated with a combination of miglustat/allopregnanolone/2-hydroxypropyl-cyclodextrin (HPβCD), or a monotherapy with HPβCD alone. Results: Using BrdU to label dividing cells of the VNE, we detected a proliferation increase of 215% ± 12% in Npc1−/− mice, and 270% ± 10% in combination- treated Npc1−/− animals. The monotherapy with HPβCD led to an increase of 261% ± 10.5% compared to sham-treated Npc1−/− mice. Similar to the OE, we assessed the high regenerative potential of vomeronasal progenitor cells. OMP reactivity in the VNE of Npc1−/− mice was not affected, in contrast to that observed in the OE. Concomitantly, cathepsin-D reactivity in the VNE was virtually absent. Conclusion: Vomeronasal receptor neurons are less susceptible against NPC1 pathology than olfactory receptor neurons. Compared to control mice, however, the VNE of Npc1−/− mice displays an increased neuroregenerative potential, indicating compensatory cell renewal.
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Anwar, S. Jamal, M. Ramzan, and M. Khalid Khan. "Quantum Fisher Information of Three-Level Atom under the Influence of the Stark Effect and Intrinsic Dechorence." Atoms 11, no. 3 (February 28, 2023): 42. http://dx.doi.org/10.3390/atoms11030042.

Повний текст джерела
Анотація:
We study the dynamical evolution of quantum Fisher information (QFI) and von Neumann entropy (VNE) for a three-level atomic system interacting with the single-mode coherent field in the presence of the Stark effect and intrinsic decoherence (ID) with and without atomic motion. The effect of the ID is significant on the VNE and QFI for a three-level atom in the absence of atomic motion. It is observed that in the case of a three-level atomic system in the presence of ID, the decay of QFI and VNE is rapid and significant but no prominent effect of the Stark effect is observed. Hence, for a three-level atom, the decay of quantum entanglement (QE) with respect to time is very fast and rapid in the absence of atomic motion with an increasing value of ID. Moreover, ID is not suitable to maintain the QE for three-level atomic systems in the absence of atomic motion. The Stark effect has no significant effect on the QE. In the case of three-level atoms, ID and the Stark do not affect the periodic nature of QFI and VNE with time evolution in the presence of atomic motion. The periodic response of QFI and VNE is observed under the effect of the Stark effect and ID in the presence of a motion of a three-level atom. The QE sudden death and birth is observed in the presence of atomic motion. Therefore, the ID with the Stark effect is suitable to sustain and maintain the QE in the presence of atomic motion for three-level atomic systems. These results show the strong dependence of QFI and VNE on the Stark effect and ID.
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Дисертації з теми "VNE"

1

YUSUPOV, JALOLLIDDIN. "Formal assurance of security policies in automated network orchestration (SDN/NFV)." Doctoral thesis, Politecnico di Torino, 2020. http://hdl.handle.net/11583/2850616.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Wu, Haitao. "Conception et analyse d’algorithmes d’approximation dans les réseaux de communication de nouvelle génération." Thesis, Avignon, 2018. http://www.theses.fr/2018AVIG0231/document.

Повний текст джерела
Анотація:
Avec l’avènement de l’ère intellectuelle et de l’Internet of Everything (IoE), les besoins de la communication mondiale et des applications diverses ont explosé. Cette révolution exige que les futurs réseaux de communication soient plus efficaces, intellectuels, agiles et évolutifs. De nombreuses technologies réseau sont apparues pour répondre à la tendance des réseaux de communication de nouvelle génération tels que les réseaux optiques élastiques (EONs) et la virtualisation de réseau. De nombreux défis apparaissent avec les apparences de la nouvelle architecture et de la nouvelle technologie, telles que le routage et l’allocation de ressource spectrale (RSA) dans les EONs et l’intégration de réseaux virtuels (Virtual Network Embedding ou VNE) dans la virtualisation de réseau.Cette thèse traite la conception et l’analyse d’algorithmes d’approximation dans trois problèmes d’optimation du RSA et du VNE : les impacts de la distribution du trafic et de la topologie du réseau sur le routage tout optique, de l’allocation de ressource spectrale, et du VNE dans les topologies des chemins et cycles. Pour le routage tout optique, le premier sous-problème du RSA, il y a toujours un problème en suspens concernant l’impact de la distribution du trafic et de la topologie EON. Comme le routage tout optique joue un rôle essentiel pour la performance globale de la RSA, cette thèse fournit une analyse approfondi théorique sur ces impacts. Pour le deuxième sous-problème du RSA, l’allocation de ressource spectrale, deux chemins optiques quelconques partageant des fibres optiques communes pourraient devoir être isolés dans le domaine spectral avec une bande de garde appropriée pour empêcher la diaphonie et / ou réduire les menaces de sécurité de la couche physique. Cette thèse considère le scénario dans lequel les exigences de bandes de garde réelles optiques sont différentes pour différentes paires de chemins, et étudie comment affecter les ressources spectrales efficacement dans une telle situation. L’hétérogénéité de la topologie des demandes de réseau virtuel (VNR) est un facteur important qui entrave les performances de la VNE. Cependant, dans de nombreuses applications spécialisées, les VNR ont des caractéristiques structurelles communes par exemple, des chemins et des cycles. Pour obtenir de meilleurs résultats, il est donc essentiel de concevoir des algorithmes dédiés pour ces applications en tenant compte des caractéristiques topologiques. Dans cette thèse, nous prouvons que les problèmes VNE dans les topologies de chemin et de cycle sont NP-difficiles. Afin de les résoudre, nous proposons des algorithmes efficaces également analysons leurs ratios d’approximation
With the coming of intellectual era and Internet of Everything (IoE), the needs of worldwide communication and diverse applications have been explosively growing. This information revolution requires the future communication networks to be more efficient, intellectual, agile and scalable. Many technologies have emerged to meet the requirements of next generation communication networks such as Elastic Optical Networks (EONs) and networking virtualization. However, there are many challenges coming along with them, such as Routing and Spectrum Assignment (RSA) in EONs and Virtual Network Embedding (VNE) in network virtualization. This dissertation addresses the algorithm design and analysis for these challenging problems: the impacts of traffic distribution and network topology on lightpath routing, the distance spectrum assignment and the VNE problem for paths and cycles.For lightpath routing, the first subproblem of the RSA, there is always a pending issue that how the changes of the traffic distribution and EON topology affect it. As the lightpath routing plays a critical role in the overall performance of the RSA, this dissertation provides a thoroughly theoretical analysis on the impacts of the aforementioned two key factors. To this end, we propose two theoretical chains, and derive the optimal routing scheme taking into account two key factors. We then treat the second subproblem of RSA, namely spectrum assignment. Any two lightpaths sharing common fiber links might have to be isolated in the spectrum domain with a proper guard-band to prevent crosstalk and/or reduce physical-layer security threats. We consider the scenario with diverse guard-band sizes, and investigate how to assign the spectrum resources efficiently in such a situation. We provide the upper and lower bounds for the optimal solution of the DSA, and further devise an efficient algorithm which can guarantee approximation ratios in some graph classes.The topology heterogeneity of Virtual Network Requests (VNRs) is one important factor hampering the performance of the VNE. However, in many specialized applications, the VNRs are of some common structural features e.g., paths and cycles. To achieve better outcomes, it is thus critical to design dedicated algorithms for these applications by accounting for topology characteristics. We prove the NP-Harness of path and cycle embeddings. To solve them, we propose some efficient algorithms and analyze their approximation ratios
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Rodriguez, Harry. "SPACEBOURNE VME BASED PCM ENCODER (VPE)." International Foundation for Telemetering, 1993. http://hdl.handle.net/10150/608848.

Повний текст джерела
Анотація:
International Telemetering Conference Proceedings / October 25-28, 1993 / Riviera Hotel and Convention Center, Las Vegas, Nevada
The VME bus is used in a wide variety of airborne applications. The particular application of the VPE is for use in the MSTI satellite to provide spacecraft telemetry. The VME based PCM encoder can provide telemetry from any stand alone data acquisition system. This paper describes the VME based PCM encoder. Since this design is ruggedized to meet the launch and environmental requirements for space, it can be used in any airborne VME system.
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Knapová, Petra. "Výsledky studentů VŠE ve statistice." Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-4228.

Повний текст джерела
Анотація:
The main aim of my thesis is to compare results of different groups of students who took part in the statistic course on VŠE. The thesis is dividend into two parts. The first part is focused on theoretical solution of used data comparison. The second part is practical and it is focused on results comparison from different angles with descriptive statistics and some statisistics tests. The results from partial comparison of data from different points of view are summarized at the end of the thesis.
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Čech, Martin. "Citlivostní analýza proudění lopatkami VNT mechanismu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229951.

Повний текст джерела
Анотація:
This diploma thesis analyzes the effects of various parameters of vane profile and position of VNT mechanism on the size of aerodynamic force which acts on the vanes and on the position of neutral axis of the vane. A CDF simulation was created to do this analysis, and the results of the simulation were evaluated. Thesis also deals with turbochargers in general and with other methods of their regulation.
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Machado, Sonia Maria Farriá. "La beauté agissante (Athènes VIe-Ve siècles)." Paris 1, 1997. http://www.theses.fr/1997PA010527.

Повний текст джерела
Анотація:
Cette recherche a pour but de déterminer les raisons esthétiques de la chute d'Athènes. Dans le processus de notre travail, nous saisissons que ces raisons esthétiques représentent le reflet fidèle de la réalité sociale et politique vécue par les athéniens. En outre, ces valeurs socio-politiques sont solidement ancrées dans la religion officielle constituée par des mythes, venus d'un lointain passé. Pendant tout le parcours de notre recherche, nous nous trouvons toujours devant le modèle plastique-esthétique précis de l'archétype héroïque. Cet archétype, né dans l'inconscient collectif, partage entre les forces dionysiaques et apolliniennes, fondement du politique d'Athènes, a été la cause déterminante de son anéantissement
The objective of this research is to determine the esthetic causes for the fall of Athens. In the course of our work, we have understood that the esthetic causes represent the faithful reflection of the social and political reality experienced by the athenians. Moreover, these socio-political values are solidly anchored in the official religion consisting of myths coming from a distant past. During the entire course of our research, we were constantly confronted by the specific plastic-esthetic model of the heroic archetype. This archetype, the fundamental element of athenian ideation, born in the collective unconscious and torn between dionysian and appolonian forces, was the determining cause of athen's annihilation
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Chateau, Dominique. "La beauté agissante (Athènes VIe-Ve siècles) /." Villeneuve d'Ascq : Presses universitaires du Septentrion, 1998. http://catalogue.bnf.fr/ark:/12148/cb377547981.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Cetkovský, Martin. "Simulace silového zatížení rozváděcího VNT mechanismu turbodmychadla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229248.

Повний текст джерела
Анотація:
This diploma thesis deals with turbochargers with a focus on the ways of their regulation. The main subject is to design CFD simulation for a turbocharger with VNT mechanism at specific positions. Simulation is based on the turbocharger Garrett by Honeywell, for which measurement was realized. Finally torques acting on the vanes are evaluated from the simulation. The means of results improvement are considered at the end of the thesis.
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Brahmi, Djamel Fertil Bernard. "Quantification de la progression virale dans les rétinopathies à CMV par des techniques d'analyse d'images fondées sur des méthodes d'apprentissage par l'exemple." [S. l.] : [S. n.], 2001. http://www.imed.jussieu.fr/niveau1/vie/actu_U494/TheseDB.html.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Ahmadi, Mohammad-Rahim. "Le travail du point de vue dans La vie mode d’emploi de Georges Perec." Grenoble 3, 2004. http://www.theses.fr/2004GRE39051.

Повний текст джерела
Анотація:
Dans cette thèse, nous analysons l'articulation des trois points de vue représenté, raconté et asserté (théorisés par Alain Rabatel), dans "La Vie mode d'emploi" de Georges Perec. Nous faisons d'abord un tour d'horizon de l'histoire et de la théorie du point de vue tracées par Rabatel. Nous étudions ensuite le point de vue comme un élément fondamental dans la construction de certains composants essentiels de l'énonciation narrative de "La Vie mode d'emploi" : personnages, narrateur et narrataire. Dans cette thèse, nous insistons sur deux enjeux majeurs de notre recherche qui résultent d'une certaine réciprocité de la théorie et de l'oeuvre étudiée : le premier enjeu met en avant la polyphonie comme une particularité de l'écriture perecquienne dans "La Vie mode d'emploi" : nous voyons comment la polyphonie s'installe à partir des relations que nous avons établies entre certaines notions comme l'ambiguïté, l'argumentation indirecte et les citations implicites. La mise en évidence de la polyphonie à la lumière du point de vue démontre la spécularité et la complexité de l'écriture perecquienne dans laquelle toutes les voix, celles des personnages, celle du narrateur ainsi que celle du narrataire sont représentées. Le second enjeu est l'apport de notre lecture de "La Vie mode d'emploi" à la théorie du point de vue. Notre parcours lectoral nous permet de modifier l'appareil théorique pour le rendre plus souple et répondre aux particularités textuelles du grand roman de Perec, qualifié de Tour de Babel de la littérature contemporaine.
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Книги з теми "VNE"

1

Kapeli︠a︡n, Grigoriĭ. Vne konteksta. Sankt-Peterburg: Iskusstvo Rossii, 2006.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Khersonskiĭ, B. G. Vne ogrady. Moskva: "Nauka", 2008.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Vne igry. Moskva: Zebra E, 2010.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Golubit︠s︡kiĭ, Veniamin. Vne rezkosti. Ekaterinburg: U-Faktorii︠a︡, 2005.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Preobrazhenskai͡a, L. Vne vremeni. Belgorod: Vezelit͡sa, 2002.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

T︠S︡iolkovskiĭ, K. Vne Zemli. Kaluga: Zolotai͡a allei͡a, 2008.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Sinʹkevich, Konstantin. Vne Rodiny: Memuary. Moskva: Voskresenʹe, 2004.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Otroshenko, Vladislav. Persona vne dostovernosti. Sankt-Peterburg: Limbus Press, 2000.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Ratushinskaya, Irina. Vne limita: Izbrannoe. Frankfurt am Main: Posev, 1986.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Adamovich, Boris. Zhiznʹ vne Zemli. Moskva: IFIC Technology and Industry, 1997.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Частини книг з теми "VNE"

1

Jiang, Chunxiao, and Peiying Zhang. "Introduction of Security Requirements in VNE." In QoS-Aware Virtual Network Embedding, 9–10. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5221-9_2.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Jiang, Chunxiao, and Peiying Zhang. "Description of Load Balance in VNE." In QoS-Aware Virtual Network Embedding, 297–98. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5221-9_17.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Jiang, Chunxiao, and Peiying Zhang. "Description of Energy Consumption Requirements in VNE." In QoS-Aware Virtual Network Embedding, 227–28. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5221-9_13.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Jiang, Chunxiao, and Peiying Zhang. "Description of Service-Aware Requirements in VNE." In QoS-Aware Virtual Network Embedding, 107–8. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5221-9_7.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Kühn, Ramona, Andreas Fischer, and Hermann de Meer. "Modeling Security Requirements for VNE Algorithms: A Practical Approach." In Systems Modeling: Methodologies and Tools, 165–79. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-92378-9_11.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Yu, Cunqian, Rongxi He, Bin Lin, Li Zhang, and Jingyu Li. "Knowledge-Aware VNE Orchestration in Cloud- and Edge-Mixed Data Center Networks." In Lecture Notes in Electrical Engineering, 526–34. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6504-1_64.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Jiang, Chunxiao, and Peiying Zhang. "VNE-HPSO Virtual Network Embedding Algorithm Based on Hybrid Particle Swarm Optimization." In QoS-Aware Virtual Network Embedding, 129–52. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5221-9_9.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Jiang, Chunxiao, and Peiying Zhang. "Resource Management and Security Scheme of ICPSs and IoT Based on VNE Algorithm." In QoS-Aware Virtual Network Embedding, 85–103. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5221-9_6.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Jiang, Chunxiao, and Peiying Zhang. "A Multi-Domain VNE Algorithm Based on Load Balancing in the IoT Networks." In QoS-Aware Virtual Network Embedding, 299–325. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5221-9_18.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Jiang, Chunxiao, and Peiying Zhang. "VNE Strategy Based on Chaotic Hybrid Flower Pollination Algorithm Considering Multi-Criteria Decision Making." In QoS-Aware Virtual Network Embedding, 373–97. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5221-9_21.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.

Тези доповідей конференцій з теми "VNE"

1

Fischer, Andreas, Ramona Kühn, Waseem Mandarawi, and Hermann de Meer. "Modeling Security Requirements for VNE algorithms." In 10th EAI International Conference on Performance Evaluation Methodologies and Tools. ACM, 2017. http://dx.doi.org/10.4108/eai.25-10-2016.2266673.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Gomes, Rayner, Dario Vieira, and Miguel Franklin de Castro. "Differential Evolution for VNE-5G Scenarios." In 2021 11th IFIP International Conference on New Technologies, Mobility and Security (NTMS). IEEE, 2021. http://dx.doi.org/10.1109/ntms49979.2021.9432655.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Gomes, Rayner, Dario Vieira, and Miguel Franklin de Castro. "Vertical Parallelization of Differential Evolution Heuristic for Network Slicing in 5G Scenarios." In Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos. Sociedade Brasileira de Computação, 2022. http://dx.doi.org/10.5753/sbrc.2022.222314.

Повний текст джерела
Анотація:
The 5G mobile network is based on a virtualized infrastructure and offers a virtual network (VN) creation service considering many new scenarios arising from the 5G vision. The diversity of scenarios and the instantiation of VN on-demand induce pressure on the virtual network embedding (VNE). VNE is the mapping of virtual nodes and links to real nodes and links obeying the QoS parameters present in the VN request and available resources. Since this is an optimization and NP-Hard problem, multiple efforts have been made to create VNE algorithms. Considering such efforts, this work presents: (i) a fitness function regarding multiobjective optimization; and (ii) a Parallel Differential Evolution (PDE) approach to face the VNE. We designed the PDE due to the lack of viable parallel solutions in the 5G scenario. We compared our approaches with different versions of Greedy, Stress, and Genetic Algorithms, totaling ten approaches. The results demonstrate that DE and its parallel version obtained a higher number of mapped requisitions. Also, the parallel performance decreases the execution time in certain conditions; in a favorable scenario, the parallel version obtains up 21.04% of runtime reduction.
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Cao, Haotong, Longxiang Yang, and Jinbo Chen. "An exact VNE algorithm based on optimization theory." In 2016 IEEE International Conference on Consumer Electronics - Asia (ICCE-Asia). IEEE, 2016. http://dx.doi.org/10.1109/icce-asia.2016.7804808.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Li, Xing, Hancheng Lu, Wei Zhou, and Peilin Hong. "VNE-RFD: Virtual network embedding with resource fragmentation consideration." In GLOBECOM 2014 - 2014 IEEE Global Communications Conference. IEEE, 2014. http://dx.doi.org/10.1109/glocom.2014.7037076.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Prekas, Stelios, Panagiotis Karkazis, Panagiotis Trakadas, and Vasileios Nikolakakis. "Comparison of VNE heuristic solutions with similar objective functions." In PCI 2020: 24th Pan-Hellenic Conference on Informatics. New York, NY, USA: ACM, 2020. http://dx.doi.org/10.1145/3437120.3437266.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Cao, Haotong, Longxiang Yang, Yue Hu, and Jinbo Chen. "An exact VNE algorithm based on Integer Linear Programming." In 2016 15th International Conference on Optical Communications and Networks (ICOCN). IEEE, 2016. http://dx.doi.org/10.1109/icocn.2016.7875821.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Li, Yanyu, Yunchun Li, Min Shu, Jiqiang Tang, and Yigang Peng. "An Efficient VNE Algorithm via Preferentially Mapping Important Nodes." In 2016 IEEE 41st Conference on Local Computer Networks: Workshops (LCN Workshops). IEEE, 2016. http://dx.doi.org/10.1109/lcn.2016.026.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Hesselbach, Xavier, and Khaled Hejja. "PaCoVNE: Power Consumption Aware Coordinated VNE with Delay Constraints." In XIII Jornadas de Ingenieria Telematica - JITEL2017. Valencia: Universitat Politècnica València, 2017. http://dx.doi.org/10.4995/jitel2017.2017.6490.

Повний текст джерела
Анотація:
This paper introduces a more efficient embedding approach, called power consumption aware and coordinated VNE heuristic, denoted as (PaCoVNE). It embeds both virtual nodes and edges, simultaneously, and within one stage, while satisfying: CPU, BW constraints, minimizes power consumption of whole substrate network, and considers end-to- end delay as a major constraint. Performance of the new heuristic was compared to the energy aware algorithm OCA/EA-RH, for off-line scenario using homogeneous configurations, with and without end-to-end delay. The paper also presents simulation results for the two configurations once without end-to-end delay, and also when it was included.
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Kushiyama, Raihaanjun, Ryo Yamamoto, and Satoshi Ohzahata. "VNE-HAGBE: A Hybrid Approach to Improve VNR Request Acceptance Rate for Wireless Virtual Network Embedding." In 2022 23rd Asia-Pacific Network Operations and Management Symposium (APNOMS). IEEE, 2022. http://dx.doi.org/10.23919/apnoms56106.2022.9919950.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.

Звіти організацій з теми "VNE"

1

Núñez Domínguez, T., MT Arenas-Molina, and ME Villar. ¿Cómo se ven? ¿Cómo las ven? Discriminar en la construcción. Revista Latina de Comunicación Social, October 2016. http://dx.doi.org/10.4185/rlcs-2016-1130.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Lehman, Thomas, Chin Guok, and Nasir Ghani. Virtualized Network Control (VNC). Office of Scientific and Technical Information (OSTI), January 2013. http://dx.doi.org/10.2172/1083821.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Warden, D., and I. Iordanov. The "vnc" URI Scheme. RFC Editor, May 2016. http://dx.doi.org/10.17487/rfc7869.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Rodriguez, J. N. Qualification of VCE Replacement Materials. Office of Scientific and Technical Information (OSTI), October 2018. http://dx.doi.org/10.2172/1476189.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Li, Andy Y., Alexandru Macridin, and Panagiotis Spentzouris. Scalable boson encoding for VQE. Office of Scientific and Technical Information (OSTI), February 2020. http://dx.doi.org/10.2172/1614727.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Alleva, D. VFI: VME/FASTBUS Interface routines. Office of Scientific and Technical Information (OSTI), September 1987. http://dx.doi.org/10.2172/5793542.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Alleva, D. VTI: VME/CIPRICO Interface routines. Office of Scientific and Technical Information (OSTI), September 1987. http://dx.doi.org/10.2172/5876415.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Parker, M. J., and M. Heverly. A fiber optic wind vane. Office of Scientific and Technical Information (OSTI), February 1997. http://dx.doi.org/10.2172/543652.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Jamoussi, B., D. Jamieson, D. Williston, and S. Gabe. Nortel's Virtual Network Switching (VNS) Overview. RFC Editor, May 1998. http://dx.doi.org/10.17487/rfc2340.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Williams, H. Chapitre 11 : Sommaire et vue d'ensemble. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1995. http://dx.doi.org/10.4095/205265.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
Також вас можуть зацікавити розширені добірки на тему "VNE" для конкретних типів джерел:
Статті в журналах Дисертації Книги
Ми пропонуємо знижки на всі преміум-плани для авторів, чиї праці увійшли до тематичних добірок літератури. Зв'яжіться з нами, щоб отримати унікальний промокод!

До бібліографії