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  1. 21281

    Research Prospect of Anti-Jamming Strategy for the Satellite Internet by Chen HAN, Aijun LIU, Kang AN

    Published 2022-03-01
    “…As an important infrastructure of the national information system, the satellite internet is of great signifi cance to the national security.Thus, it needs to ensure the validity and reliability of the data transmission in the hostile jamming environment.The threat of smart jamming and the limitation of classical link-layer anti-jamming methods give rise to the new demand of intelligent and networked antijamming solutions.In view of the structural characteristics of the satellite internet and the development trend of modern communication jamming technologies, this paper analyzed the basic architecture of intelligent and networked anti-jamming.Based on the closed-loop strategic of sense-learn-prediction-decision-feedback, intelligent and active anti-jamming decision was made to realized self-confi guration and self-optimization.Based on the cooperative communication between nodes, networked anti-jamming ability was improved by the means of topology control and reconstruction, adjacent resources reallocation, and traffi c load balancing.It provided certain theoretical support for the construction of anti-jamming strategy system to achieved the cross-layer optimization, multi-domain combination, and adaptive intelligence.…”
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  2. 21282

    Neural network wind speed prediction based on multiple prediction model and nonlinear combination by Jiajun WANG, Wei CAO, Guilong ZHANG, Huaizhi ZHANG, Zixing LING, Xiaoqiang ZHAO

    Published 2021-12-01
    “…For the problem of strong randomness in space-time characteristics of wind speed in complex mountains,in order to improve the accuracy of wind speed data prediction, a neural network wind speed prediction algorithm based on multi prediction model and nonlinear combination was proposed.In the first layer of the algorithm, the grey wolf optimizer (GWO) and the dynamic convergence factor were used to improve the whale optimization algorithm (WOA), and the improved WOA was applied to the updating process of BPNN weights and bias items.At the same time, the improved whale optimiza-tion algorithm of back propagation neural network (IWOABP), ELM and LSTM three complementary single methods were constructed to build a combination prediction method, and on this basis, the ELM mixing mechanism of the second layer of the algorithm was utilized to learn the relationship between the first layer and the final result in a non-linear way.Simulation results show that compared with BPNN, WNN and GWOBP, the proposed algorithm has lower prediction errors.…”
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  3. 21283

    Virtual Union, the Seeds of Hatred, and the Fraternal Joining of Hands: Leibniz and Toleration by Mogens Laerke

    Published 2019-06-01
    “…Most importantly, however, while clearly seeing it as something positive, he also detected deep ambiguities in the concept from which we have much to learn in our own assessment of modern toleration.…”
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  4. 21284

    Polityka socjalna i sytuacja ludzi w podeszłym wieku by Piotr Krajewski

    Published 2006-12-01
    “…On the hand, all who are much younger should learn how to grow old taking into account that the phenomenon of life is a dynamic process and it is not connected with the present day but the future which will come very fast, that is why, it should not find us unprepared. …”
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  5. 21285

    On Resisting Global Disposability, Regimes of Death-Making and Accumulation by Rupinder Parhar

    Published 2025-02-01
    “…She also discusses our interconnection with, and need to learn from, those who ‘face the knife-edge of these global regimes of death-making’ in their everyday lives, such as in Palestine. …”
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  6. 21286

    Val d’Hérens (Suisse) : une histoire des transitions (touristiques) manquées by Marjolaine Gros-Balthazard, Caterina Franco, Anouk Bonnemains

    Published 2024-04-01
    “…In addition, it presents opportunities for reflection on the lessons learned from what we might consider to be failures and their influence on territorial dynamics.…”
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  7. 21287

    A New Monograph on the Bulgarian Mission of Dr. Albert Long by Lilia Zheleva

    Published 2025-01-01
    “…The review highlights the rich documentary basis and illustrative material, the scholarly rigor, and the fascinating style of the book that allow the readers to immerse themselves in the atmosphere of the years before and after the Liberation of Bulgaria, to learn about the Bulgarian reality at that time better and to deeply consider the high social significance of the activity of Dr. …”
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  8. 21288
  9. 21289

    Babuinare by Joana Antunes

    Published 2024-01-01
    “…Commonly known for their prolix and heterodox nature, the margins of medieval art present us with a vast array of figures, themes, and representational strategies that deserve to be questioned and learned about. Created to fill voids, to dynamise surfaces and spatial relations, to comment on and amplify the effects anticipated for the centre, they were also invested with playful, prophylactic, and apotropaic functions, so important in medieval culture but still so little studied (and so difficult to study) in Portugal. …”
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  10. 21290

    Exploring Citizenship Unit III: My Clubs and Groups by Joy Jordan

    Published 2018-12-01
    “… The 4-H Citizenship Project offers you the opportunity to help 4-H members relate all of their 4-H projects and experiences to the world around them. They will learn to care for and share with others through the skills and talents they’ve developed. …”
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  11. 21291

    AI based scheme on voice service quality evaluation and assurance by Guangyu LI, Yanping LIANG, Li YU, Kun WANG, Yangming CHEN, Sijia LIU

    Published 2021-05-01
    “…The voice service is one of the mainstream services under the telecommunications network.The mainstream voice service quality evaluation method in the industry is to compare the voice and audio of the transceiver and calculate the POLQA MOS, which is the standard benchmark for voice quality analysis.For telecom operators, perceive voice service quality efficiently without any infringement of user privacy, and carry out precise service quality assurance, is one of the key tasks.A system using mathematical statistics and neural network to learn the mapping between voice service feature data from network side and voice quality from user side to generate evaluation model with high accuracy and precision was proposed.On this basis, the system made use of data information from multiple fields including wireless network user level and cell level, to analyze reasons and work out solutions for poor service quality, so as to assure service quality efficiently and accurately.The result shows that the scheme has achieved good practical application results.…”
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  12. 21292

    La relation paysans-paysages entre discours et savoirs by Amandine Saget

    Published 2023-07-01
    “…This article invites the reader to learn about the initial theoretical and methodological principles to gain an understanding of this relationship and engage in continuous action without disregarding the farmers’ experiences and how these experiences relate to the landscape. …”
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  13. 21293
  14. 21294

    La Coroplastica Greca. Metodologie per lo studio di produzioni, contesti e immagini by Jaimee Uhlenbrock

    Published 2013-06-01
    “…It was developed mainly as a specialized course for university students wishing to conduct research on Greek terracotta objects, or simply to learn more about the study of Greek terracottas, although more advanced researchers also were enrolled. …”
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  15. 21295

    Charge de travail et stress professionnel : deux facettes d’une même réalité ? by Sandrine Cazabat, Béatrice Barthe, Nadine Cascino

    Published 2008-05-01
    “…This exploratory study was conducted among nurses in a Gerontology hospital. The objective was to learn why an increase in workload led to an increase in perceived stress levels and also whether nurses adopted a regulatory process based on social support. …”
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  16. 21296

    Staging Atmospheres: Editorial introduction to the first volume by Chloé Déchery, Martin Welton

    Published 2020-12-01
    “…On the other hand, it concerns what, in turn, the practice and study of theatre has to learn from enquiries across a range of other disciplines in which features of theatre and the theatrical as aesthetic, spatial and/or social generators of atmospheres have been regularly deployed by scholars in architecture, geography and philosophy. …”
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  17. 21297

    Voyage au centre de la chair : l’exploration miniature du corps humain dans les jeux vidéo by Fleur Hopkins

    Published 2018-12-01
    “…We can identify five types of inner travels : a struggle with a living being, who has just swallowed the hero to destroy him and that needs to be annihilated from the inside ; a marvelous exploration meant to learn more about the human body ; shooting or strategy games that take place within the body ; an army patrol in a sick body, in order to fight the disease that is taking over the player ; augmented and virtual reality displays that enable doctors to see through the body, made transparent. …”
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  18. 21298

    Managing the health and productivity of HLB-affected groves by Tripti Vashisth

    Published 2017-05-01
    “…After years of extensive research from across the world, we still do not have a cure for HLB, however we have learned a lot about this disease, the plant’s response and the disease vector. …”
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  19. 21299

    Spatiotemporal squeeze-and-excitation residual multiplier network for video action recognition by Huilan LUO, Kang TONG

    Published 2019-10-01
    “…Aiming at the shortcomings of shallow networks and general deep models in two-stream network structure,which could not effectively learn spatial and temporal information,a squeeze-and-excitation residual network was proposed for action recognition with a spatial stream and a temporal stream.Meanwhile,the long-term temporal dependence was captured by injecting the identity mapping kernel into the network as a temporal filter.Spatiotemporal feature multiplication fusion was used to further enhance the interaction between spatial information and temporal information of squeeze-and-excitation residual networks.Simultaneously,the influence of spatial-temporal stream multiplication fusion methods,times and locations on the performance of action recognition was studied.Given the limitations of performance achieved by a single model,three different strategies were proposed to generate multiple models,and the final recognition result was obtained by integrating these models through averaging and weighted averaging.The experimental results on the HMDB51 and UCF101 datasets show that the proposed spatiotemporal squeeze-and-excitation residual multiplier networks can effectively improve the performance of action recognition.…”
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  20. 21300

    Coral Reef Conservation Strategies for Everyone by Kathryn E. Lohr, Joshua T. Patterson

    Published 2016-10-01
    “…About 400 million people rely on coral reef fish as a source of protein; about 6 million people make a living by catching and selling coral reef fish and invertebrates; tourism activities like SCUBA diving and snorkeling provide revenue of US $9.6 billion per year; and reefs reduce wave energy by 97%, helping to protect 197 million people in coastal areas from beach erosion, wave energy, and flooding. Learn how you can help protect these fragile, essential ecosystems from threats in this 7-page fact sheet written by Kathryn E. …”
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