6,987 research outputs found
A Geo-Historical Database for the Historical Photos of Yunnan-Vietnam Railway in China
No full textYunnan-Vietnam Railway is a well-known cultural route connecting rich cultural and landscape heritages in China, whose whole heritage system includes not only the physical remains related to the railway history but also the other movable heritages, such as the historical images left during its construction process. This paper aims to briefly summarize the characteristics of historical GIS and the possibility of constructing a historical database with the help of PostgreSQL and GIS tools. The sources of the existing historical images of the Yunnan-Vietnam Railway are discussed. Then, those photographic works left by three related railway workers have historical, social, and heritage meanings, which are the evidence of the historical changes of Yunnan. Thus, these photos in the archive and other geographic data are collected and utilized to construct a geo-historical database to realize further spatial analysis, such as the footprints map of historical figures. Further research and applications can be fulfilled based on this built geo-historical database
From Site Survey to HBIM Model for the Documentation of Historic Buildings: the Case Study of Hexinwu Village in China
No full textArchitectural heritage surveying plays a fundamental role in the preservation of historic buildings for scientific research, education and tourism. The use of Unmanned Aerial Vehicles and Terrestrial Laser Scanning techniques are essential for architectural heritage surveying and mapping. In recent years, the combination of Building Information Modelling (BIM) with heritage studies has been presented as Historic BIM (HBIM) which, integrated with UVA and TLS, is a technique that is able to deal more efficiently with the management and protection of historic buildings. This paper focuses on the integration of UVA images and point clouds from laser scanning to build a 3D architectural model for the documentation of Chinese historic buildings. In particular, the method, tested in the case study of the traditional village, Hexinwu, China, can contribute further to the analysis, evaluation and heritage planning of this remarkable architectural structure, thus increasing its historical significance for the future.Il rilievo del patrimonio architettonico è fondamentale nella conservazione degli edifici storici per la ricerca scientifica, l'istruzione e il turismo. L'uso dei veicoli aerei senza pilota e le tecniche di scansione laser terrestre sono essenziali per il rilevamento e la mappatura del patrimonio architettonico. Negli ultimi anni l'abbinamento del Building Information Modeling (BIM) con gli studi sul patrimonio è stato presentato come Historic BIM (HBIM) che, integrato con UVA e TLS, permette di affrontare in modo più efficiente la gestione e la tutela edifici. Questo documento tratta l'integrazione di immagini UVA con l’insieme punti scansionati con laser per costruire un modello architettonico 3D per la documentazione di edifici storici cinesi. In particolare, il metodo testato nel caso di studio del villaggio tradizionale, Hexinwu, Cina, può contribuire ulteriormente all'analisi, valutazione e pianificazione del patrimonio di questa straordinaria struttura architettonica, aumentando così la sua importanza storica per il futuro
Nonlinear Schrödinger systems with trapping potentials for mixed attractive and repulsive interactions
No full textIn this paper, we prove the existence of a positive least energy vector solution and its asymptotic behavior for three-component nonlinear Schrodinger systems with mixed couplings (two repulsive and one attractive) forces and nonconstant potentials on the entire space when the interaction forces are large. When the system with mixed coupling forces has constant potentials, repulsive forces make a state more stable when the interaction between components are less; thus it loses a compactness due to translation segregating components. To get a compactness, we impose a potential wall at infinity; then, we can construct a least energy vector solution. A main interest in this work is its asymptotic behavior of the solution for large interaction forces; one component repelling other two components survives and the other two components diminish and concentrate at a point diverging to infinity as the interaction forces are getting larger and larger. The location of the concetration point, which we could characterize in terms of the limit of a surviving component, a repulsive force and potentials of diminishing components under the assumption of the nondegeneracy for the limit problem of the surviving component
Supplemental Material - Are Surprise Questions and Probabilistic Questions by Nurses Useful in Home Palliative Care? A Prospective Study
No full textSupplemental Material for Are Surprise Questions and Probabilistic Questions by Nurses Useful in Home Palliative Care? A Prospective Study by Sang-Yeon Suh, Seok-Joon Yoon, Cheng-Pei Lin and David Hui in American Journal of Hospice and Palliative Medicine®</p
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