Showing 43,361 - 43,380 results of 68,043 for search '"technology"', query time: 0.29s Refine Results
  1. 43361

    Progress on Waveguide-Integrated Graphene Optoelectronics by Jiaqi Wang, Zhenzhou Cheng, Xuejin Li

    Published 2018-01-01
    “…The combination of photonic integrated circuits and graphene also enables the development of graphene devices by using silicon photonic technology, which greatly extends the scope of graphene’s application. …”
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  2. 43362
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  4. 43364

    Improved embedded wideband speech codec fitting EV-VBR standard by XIN Jie, BAO Chang-chun, JIA Mao-shen, LIU Xin

    Published 2010-01-01
    “…Based on the International Telecommunication Union Telecommunication Standardization Sector(ITU-T) recommendation for EV-VBR coding standard and the candidate codec designed by Speech and Audio Signal Processing Laboratory(SASPL) of Beijing University of Technology,an improved embedded variable bit rates wideband speech codec was proposed.In the improved codec,ACELP coding was implied to the first two coding layers.The middle sub-frame spectral parameters were computed and quantized.Three pulses depth first tree search algorithm was designed.On the higher three coding layers embedded TCX coding was reconstructed by accumulating frequency coefficients vectors.Addition-ally,VAD and DTX functions were implemented in the improved codec.Test results show that the improved codec achieves better speech quality and much lower coding complexity than the original codec.The speech quality and coding efficiency are comparable with G.718 of a new ITU-T speech coding standard and the low delay feature is retained.…”
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    Polish Faience from Ćmielów Factory in the Collections of the Diocesan Museum in Sandomierz by Wojciech W. Kowalski

    Published 2024-12-01
    “…He also discusses the issues of under-glaze printing technology, with which all the objects in the collection are covered. …”
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    Article
  10. 43370

    Quels enseignements peut-on tirer du PISA : l’exemple des écarts de performances entre les sexes by Maciej Jakubowski, Francesca Borgonovi

    Published 2012-09-01
    “…Even girls performing very high in mathematics rarely expect to work in science, technology, engineering and mathematics (STEM fields). …”
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    Article
  11. 43371

    A Study on the Influence of Interactivity on Behavior Intention in Platform B2C Model by Hao Sun

    Published 2022-01-01
    “…The progress of information technology and the popularity of the Internet have led to the rapid development of the network economy, and as a new shopping method, online shopping is gradually accepted and respected by consumers. …”
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  12. 43372

    An overview of V2X communications by Jian FANG, Daquan FENG, Haijun DUAN, Canjian ZHENG, Gongbin QIAN

    Published 2019-06-01
    “…Internet of vehicles,which integrates cutting-edge technologies and devices in the fields of vehicles,roadside infrastructure,communications,positioning,etc.…”
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  13. 43373

    Robotics for Natural Orifice Transluminal Endoscopic Surgery: A Review by Xiaona Wang, Max Q.-H. Meng

    Published 2012-01-01
    “…However, the constraints imposed by both the mode of access and the limited technology currently available make NOTES very challenging for the surgeons. …”
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  17. 43377

    Endoscopic Management of Portal Hypertension by Said A. Al-Busafi, Peter Ghali, Philip Wong, Marc Deschenes

    Published 2012-01-01
    “…With the expected future refinements in endoscopic technology, capsule endoscopy may one day replace traditional gastroscopy as a diagnostic modality, whereas endoscopic ultrasound may more precisely guide interventional therapy for gastric varices.…”
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  18. 43378

    Blockchain-based noisy data sharing control protocol by Qingqing XIE, Nianmin YANG, Xia FENG

    Published 2023-10-01
    “…Blockchain provides a trusted channel for information sharing in an untrusted network.However, blockchain ledgers are public and transparent.Hence, the sensitive data stored in plaintext on the blockchain will compromise user privacy.Considering privacy preservation, users are more inclined to provide noisy data.And in different application scenarios, the level of data noise that users need to provide also varies.To this end, a secure, efficient, and searchable noisy data sharing control protocol was proposed based on the blockchain and smart contract technology with the ciphertext policy attribute-based encryption (CP-ABE) algorithm.First, an outsourced CP-ABE algorithm was introduced to reduce the computing burden on the user side.Secondly, smart contract was implemented to perform data search on ciphertext, which could prevent malicious operations by malicious servers.Third, the proposed protocol reduced the data update complexity to O(1), which is friendly to the scenarios with real-time data update.Finally, security analysis and simulation experiments demonstrate the security and feasibility of the proposed protocol.…”
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