18,597 research outputs found

    Comparison study on AIS data of ship traffic behavior

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    AIS (Automatic Identification System) data provides valuable input parameters in ship traffic simulation models for maritime risk analysis and the prevention of shipping accidents. This article reports on the detailed comparisons of AIS data analysis between a Dutch case and a Chinese case. This analys is focuses on restricted waterways to support inland waterway simulations, comparing the differences between a narrow waterway in the Netherlands (the Port of Rotterdam) and a wide one in China (wide water way of Yangtze River close to the SuTong Bridge). It is shown that straightforward statistical distributions can be used to characterise lateral position, speed, heading and interval times for different types and sizes of ships. However, the distributions for different characteristics of ship behaviours differ significantly

    Nautical traffic simulation with multi-agent system

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    This paper describes a microscopic nautical traffic simulation model based on multi-agent system. The ship traffic is produced from the behavior of autonomous agents that represent ships. Especially, we look at the behaviors for collision avoidance in different encountering situations with different local environmental conditions. The behavior of the ships is simulated with a dynamic ship maneuvering model, taking into account the movements in different local circumstances. And we utilize AIS data for input in simulation, model validation, and model verification. Moreover, we use the ODD (Overview, Design concepts, Details) protocol as a framework for the detailed description of the model.Hydraulic EngineeringCivil Engineering and Geoscience

    Dataset to support the article "High-resolution 𝜙-OFDR using phase unwrap and nonlinearity suppression"

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    This dataset is used for realizing high resolution of phase-sensitive Optical Frequency Domain Reflectometer. It is associated with the research paper: Guo Z, Yan J, Han G, Yu Y, Greenwood D and Marco J (2023) &quot;High-Resolution &phi;-OFDR Using Phase Unwrap and Nonlinearity Suppression&quot;. Journal of Lightwave Technology, 41 (9), 2885-2891. (https://doi.org/10.1109/JLT.2023.3236775). The data is presented as an excel file: High_resolution_OFDR_using_phase_unwrap_and_nonlinearity_suppression.xlsx This work was funded by High Value Manufacturing Catapult and the Engineer and Physical Sciences Research Council - EPSRC EP/V000624/1. The author Gaoce Han would like to acknowledge the China Scholarship Council for sponsoring.</span

    Han Suyin (Chinese author) speaking at Dallas Brookes Hall.

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    This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/276390Han Suyin (Chinese author) speaking at Dallas Brookes Hall.200056 Item: [1999.0081.00439] "Han Suyin (Chinese author) speaking at Dallas Brookes Hall.

    A Study on the mathematics textbooks in the era of the Great Han Empire

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    이 글은 갑오경장(1894)과 경술 국치(1910) 사이에 간행된 산학(수학) 교재류의 목록을 확인하고, 각 텍스트의 출판과 관련된 사항, 소장처, 이본 등의 서지적 정보와 함께 이 시기 산학 교재류의 국어사 자료로서의 의의를 언어 사용 상의 측면에 초점을 두어 정리하는 것을 목적으로 한다. 이는 현대 한국어 태동기의 분과 학문의 도입 양상에 대한 연구의 일환인 한편, 학술 용어의 번역과 정착을 중심으로 이 시기의 한국어의 어휘 확장 양상을 확인하는 데에 필요한 기초 자료를 정리하는 작업의 한 부분이다. 본 연구에 앞선 산학(수학) 교재류에 대한 연구로는 산학 교재류의 서지 사항에 대해 기술한 강윤호(1973:187-199), 김봉희(1992:247-253), 한길준(2009), 오채환 외(2010) 등이 있고, 한국 수학사를 기술하면서 교재류를 함께 다룬 것으로 김용운·김용국(1982)와 이상구(2013)이 있다.This paper aims to make a whole list of the mathematics textbooks in the era of the Great Han Empire and summerize bibliographical data and linguistic characteristics in view of Korean history. In chapter 1, the author reviewed former studies which deals with the mathematics textbooks in the era of the Great Han Empire. In chapter 2, the author summerized bibliographical data of 45 volumes of 32 kinds textbooks. In chapter 3, the author described linguistic characteristics of the textbooks, especially focusing on writing systems, the use of Arabic numerals, horizontal writing, and presence of index or glossary

    Also By The Same Author: AKTiveAuthor, a Citation Graph Approach to Name Disambiguation

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    The desire for definitive data and the semantic web drive for inference over heterogeneous data sources requires co-reference resolution to be performed on those data. In particular, name disambiguation is required to allow accurate publication lists, citation counts and impact measures to be determined. This paper describes a graph-based approach to author disambiguation on large-scale citation networks. Using self-citation, co-authorship and document source analyses, AKTiveAuthor clusters papers, achieving precision of 0.997 and recall of 0.818 over a test group of eight surname clusters

    Dataset to support the article &quot;High Sensing Accuracy Realisation with Millimetre/sub-Millimetre Resolution in Optical Frequency Domain Reflectometer&quot;

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    This dataset is used for realizing high sensing accuracy and sub-millimetre resolution of Optical Frequency Domain Reflectometer. It is associated with the research paper &quot;High Sensing Accuracy Realisation with Millimetre sub-Millimetre Resolution in Optical Frequency Domain Reflectometer&quot; in Journal: Journal of Lightwave Technology. This work was funded by High Value Manufacturing Catapult, grant reference, 160080 CORE (WMG), titled &lsquo;Smart Sensing for Future Batteries&rsquo; and the EPSRC (Engineering and Physical Sciences Research Council), grant reference EP/R004927/1, titled &lsquo;Prosperity Partnership&rsquo;. The author Gaoce Han would like to acknowledge the China Scholarship Council for sponsoring.</span

    Book Reviews

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    Author: BASSETT, THOMAS J.; The Peasant Cotton Revolution in West Africa: Ivory Coast 1880-1995; Reviewer: Jerome Coll; Author: KONG, TAT YAN; The Politics of Economic Reform in South Korea: A Fragile Miracle; Reviewer: Chang Kyung-Sup; Author: LIE, JOHN; Han Unbound: The Political Economy of South Korea: Reviewer: Chang Kyung-Sup; Editors: EADE, DEBORAH and LIGTERINGEN, ERNST; Debating Development: NGOs and the Future; Reviewer: Barry Riddell; Editor: MALIK, HAFEEZ; Pakistan: Founders' Aspirations and Today's Realities; Reviewer: Naveed Naqvi; Editor: WYPLOSZ, CHARLES; The Impact of EMU on Europe and the Developing Countries; Reviewer: Juan Paez-Farrell; Author: TRIPP, AILI MARI; Women and Politics in Uganda; Reviewer: May Christine Sengendo; Editor: SCHUURMAN, FRANS J.; Globalization and Development Studies: Challenges for the 21st Century; Reviewer: Ray Kiely; Editors: BAULCH, BOB and HODDINOTT, JOHN; Economic Mobility and Poverty Dynamics in Developing Countries; Reviewer: Christopher B. BarrettReview Books,

    Corvèe under Han

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    The author distinguishes between the corvee systems of Ch'in and Han. In spite of the fact that the corvee system underwent a marked change in 167 B. C. in the reign of Emperor Wen of Former Han, the fact has been hitherto almost entirely overlooked. The author tries to reconstruct the Ch'in corvee system from various sources. In the sense that these two ancient empires were despotic in their constitution there was no essential difference between their system of government, but Han succeeded in melting feudalistic residues of the Chan-kuo period into her own system, while Ch'in failed in doing so due to the short period of her rule. Moreover, Ch'in failed in taking local differences into consideration in establishing her institutions. In the author's view the reign of Emperor Wen is significant in the sense that it represents renovation of the feudalistic taxation system and of the uniform and artificial system of local administration
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