7,490 research outputs found

    Feasibility of Software-Based Duty Cycling of GPS for Trajectory-Based Services

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    Energy-efficient localization is increasingly important for many types of smartphone apps. The research community has argued that fixed duty cycling of GPS is not a good choice for trajectory-based services concerning route accuracy. In this paper, we describe the design and implementation of a highly accurate map matching and path construction algorithm. Furthermore, with thorough field experiments, we show that fixed duty cycling of a smartphone GPS receiver is a feasible approach for trajectory-based services, and it can achieve considerable energy conservation without sacrificing much route accuracy. When increasing the GPS sampling period beyond 120 seconds, it saves at least 78% energy in comparison to continuous GPS sampling, while the loss of route accuracy tends to be stable around 23%.Li, Xiaohan, Yuan, Fengpeng, & Lindqvist, Janne. (2016). Feasibility of Software-Based Duty Cycling of GPS for Trajectory-Based Services. In Proceedings of Consumer Communications & Networking Conference (CCNC2016-EdgeCom), Las Vegas, NV. http://ieeexplore.ieee.org/xpl/conhome.jsp?reload=true&punumber=1001153Peer reviewe

    Tian guo hua yuan

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    安徒生原著 ; 蔡慧冰改寫 ; 陳楠舟插圖.改寫自Andersen的Paradisets have.Antusheng yuan zhu ; Cai Huibing gai xie ; Chen Nanzhou cha tu

    Raw data for Yuan et al., 2023, litter CNP concentration, JOE

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    Raw data for Yuan et al., 2023, Plant litter initial concentrations of C, N, and P. Any use of the dataset please email to the corresponding author at [email protected].</p

    The Integration of the Pupils of Academicians System and the Imperial Institute of Learning in Early Han China

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    The Pupils of Academicians (Boshi-Dizi 博士弟子) System, which was instituted in 124 BCE and the Imperial Institute of Learning (Taixue 太學), the highest seat of learning in ancient China dating back to the Zhou Dynasty, have been generally regarded as comprising one unified body. However, it remains uncertain whether the former was initially integrated with the latter, because neither of the documents relating to the establishment of the Boshi-Dizi System, Emperor Wu’s (Wudi 武帝) imperial edict and Gongsun Hong’s 公孫弘 petition, mention the Taixue, and Records of the Grand Historian (Shiji 史記), a contemporary work of historiography, contains no information indicating any such initial integration. This article considers the integration of the two institutions mainly from the perspective of the history of thought, beginning with an attempt to confirm the plan and aim of the initial Boshi-Dizi System. Next the author compares them with ideas about the Taixue which existed since antiquity and shows a significant departure between the two. This is followed by the introduction of Dong Zhongshu’s 董仲舒 concept of the Taixue, raising the possibility that although the Boshi-Dizi System adopted Dong’s ideas in part, it was initially an attempt to expand the existing institutions. Then the author turns to the subject of when and how the two institutions were eventually integrated, assuming integration occurred during the reigns of Emperors Yuan and Cheng (Yuandi 元帝 and Chengdi 成帝; 49–7 BCE), which were marked by institutional reform of the Han court along the lines of Confucian ideas. The author concludes by arguing that the integration should occupy an important place in the history of the growth of Confucianism because of its primary role in the establishment a “new” Han Taixue grounded in the study of the Confucian classics.journal articl

    On My Way: Optimizing Driving Routes for Navigation Applications

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    Conventionally, the route recommendations given by GPS navigation applications have been considered as the optimal route search problem only between two locations - origin and destination. Sometimes people want to visit several intermediate locations prior to reaching their final destination. For example, travelers may want to visit a diner and a gas station before arriving at their vacation destination. Although there is likely to be many choices that are available along the route to the destination, only one place from each type should be chosen. Furthermore, in new emerging application domains, such as “physical-world crowdsourcing”, people may want to opportunistically visit some places in order to complete personal or work related tasks. Our work explores a design space where we try to reduce the amount of requests made to third-party map and route data providers. We explore the simple idea of using the Euclidean distance as a rough estimate for the optimal route between destinations with multiple waypoints. Our preliminary results indicate that with over 80% of test cases, this simple Euclidean distance estimator approach gives at least one optimal routing alternative.Yuan, Fengpeng, Song, Xueyuan & Lindqvist, Janne. (2016). On My Way: Optimizing Driving Routes for Navigation Applications. In Proceedings of Consumer Communications & Networking Conference (CCNC2016-EdgeCom), Las Vegas, NV. http://ieeexplore.ieee.org/xpl/conhome.jsp?reload=true&punumber=1001153Peer reviewe

    Introduction to the Song-Yuan-Ming Transition in Chinese History

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    Abridged translation of my \u27Introduction\u27 to The Song-Yuan-Ming Transition in Chinese History by Zhang Yi. -- author-supplied description

    Tunable acoustic attenuation in dilute suspensions of non-spherical magnetic particles

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    The microstructure of suspensions of ferromagnetic particles with subwavelength size can be controlled by an external field, making it possible to develop novel broadband acoustic materials with anisotropic and tunable acoustic properties. In this study we experimentally show that dilute suspensions of nickel micro-flakes exhibit a greater than 20% change in attenuation coefficient at MHz frequencies upon changing the direction of an external magnetic field, at particle volume fractions of only 0.5%. Optical transmission measurements and analysis of the characteristic timescales of particle alignment and chaining are used to study the mechanisms behind this acoustic anisotropy. By making comparison to suspensions of spherical particles, we show that the shape and orientation of the nickel micro-flakes play important roles in the tunable acoustic attenuation of these suspensions.Peer reviewed

    Xi ju hua zhuang shu.

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    編著者袁牧之.Colophon title.bian zhu zhe Yuan Muzhi

    The role of IRF4 in chronic lymphocytic leukemia

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    author Yuan Qi, MScLiteraturverzeichnis: Blatt 127-147Dissertation Paris Lodron University Salzburg 202

    Portrayal of likely climate change impacts on beekeeping based on earth observation data

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    author: Yuan WangLiteraturverzeichnis: Blatt [63]-67]Masterarbeit Paris Lodron University Salzburg 2022Masterarbeit Palacký University Olomouc 202
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