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Xu, Shuchen,Ye, Yu,Xu, Leiqing Council on Tall Building and Urban Habitat Korea 2017 International journal of high-rise buildings Vol.6 No.2
The importance of designing urban building complexes so that they obtain 'urban' power, rather than become isolated from the surrounding urban context, has been well recognized by both researchers and practitioners. Nevertheless, most current discussions are made from architects' personal experiences and intuition, and lack a quantitative understanding, to which obstacles include an in-depth exploration of the 'urban' power between building complexes and the urban environment. This paper attempts to measure this feature of 'urban', i.e., 'urbanity,' through a new analytical approach derived from the opendata environment. Three measurements that can be easily collected though the Google Maps API and Open Street Map are applied herein to evaluate high or low values of urbanity. Specifically, these are 'metric depth', i.e., the scale of extended public space, 'development density', i.e., density and distribution of point of interests (POIs), and 'type diversity', i.e., diversity of different commercial types. Six cases located in Japan, China and Hong Kong respectively are ranked based on this analytical approach and compared with each other. It shows that Japanese cases, i.e., Osaka Station City and Namba Parks, Osaka, obtained clearly higher values than cases in Shanghai and Hong Kong. On one hand, the insight generated from measuring and explaining 'urban' power would help to assist better implementation of this feature in the design of urban building complexes. On the other hand, this analytical approach can be easily extended to achieve a large-scale measurement and comparison among different urban building complexes, which is also helpful for design practitioners.
Fó (佛), Pwuche (仏体), and Hotoke (保止氣)
Ye Xu 성균관대학교 동아시아학술원 2021 Sungkyun Journal of East Asian Studies Vol.21 No.2
The aim of this article is to discuss how the Chinese loanword fó (佛) was incorporated into pre-Old Korean (pre-OK), Old Korean (OK), and Western Old Japanese (WOJ) on the basis of textual research using various primary sources from China, Korea, and Japan. The author proposes that two routes exist to explain the borrowing of the Chinese word fó (佛) into pre-OK, OK, and WOJ: one route from the Six Dynasties to the Korean Three Kingdoms period to Japan's pre-Nara period, and one from the Sui and Tang dynasties to the Unified Silla and Koryŏ periods.
Xu Ye,Dietrich Christopher H.,Qin Dao-Zheng 한국응용곤충학회 2021 Journal of Asia-Pacific Entomology Vol.24 No.1
Two genera, Dayus Mahmood, 1967 and Znana Dworakowska, 1994 of the leafhopper tribe Empoascini (Hem iptera: Cicadellidae: Typhlocybinae) are reviewed. One new species of each genus, Dayus furcatus sp. nov. and Znana furca sp. nov., are described from Thailand. A checklist and distribution summary of Dayus Mahmood species is given. Male habitus photos and illustrations of male genitalia of the two new species and notes on allied species are also provided.
On Spectral Density Approach in Research of Internet Topology Properties
XU Ye,WANG Zhuo 보안공학연구지원센터 2009 International Journal of Hybrid Information Techno Vol.2 No.2
Spectral density approach for distinguishing graphs was studied in this paper. Firstly, Spectral density approach was testified for being effective in distinguishing different graphs by making comparisons among the spectrums of three different kind of graphs, the ER random graph, BA scale-free graph and the Internet topology graph. Secondly, we focused our studies on the properties of Internet graph that its spectrum could represent, and found that in standard spectral density analysis part, we found that the spectral density plot of Internet graph has a feature of having a maximum when λ=0 and the second maximum whenλ=0.5 around. In SLS analysis part, we found the SLS spectrum had a set of highest tuples when SLS=1 and second highest tuples when SLS=2. Besides, a relationship of the power law distribution was observed when SLS>2, but there is no power-law relationship found when SLS<1. What was found here could be used to identify an Internet topology graph properties.
Ye Tong Xu,Xiao Kang Ma,Chun Lin Wang,Ming Feng Yuan,Xiang Shu Piao 아세아·태평양축산학회 2018 Animal Bioscience Vol.31 No.1
Objective: The goal of this study was to investigate the effects of dietary standard ileal digestible (SID) valine:lysine ratios on performance, intestinal morphology, amino acids of liver and muscle, plasma indices and mRNA expression of branched-chain amino acid (BCAA) metabolism enzymes. Methods: A total of 144 crossbred pigs (Duroc×Landrace×Large White) weaned at 28±4 days of age (8.79±0.02 kg body weight) were randomly allotted to 1 of 4 diets formulated to provide SID valine:lysine ratios of 50%, 60%, 70%, or 80%. Each diet was fed to 6 pens of pigs with 6 pigs per pen (3 gilts and 3 barrows) for 28 days. Results: Average daily gain increased quadratically (p<0.05), the villous height of the duodenum, jejunum and ileum increased linearly (p<0.05) as the SID valine:lysine ratio increased. The concentrations of plasma α-keto isovaleric and valine increased linearly (p<0.05), plasma aspartate, asparagine and cysteine decreased (p<0.05) as the SID valine:lysine ratio increased. An increase in SID lysine:valine levels increased mRNA expression levels of mitochondrial BCAA transaminase and branched-chain α-keto acid dehydrogenase in the longissimus dorsi muscle (p<0.05). Conclusion: Using a quadratic model, a SID valine:lysine ratio of 68% was shown to maximize the growth of weaned pigs which is slightly higher than the level recommended by the National Research Council [6].
Innovation Mechanism Study Based On The Technological Convergence : Implications For IT Enterprises
Ye Xu,Changqi Tao 보안공학연구지원센터 2015 International Journal of Hybrid Information Techno Vol.8 No.9
Based on redefining the concept of technological convergence, this paper analyzes market demand of convergent products according to the characteristics of technological convergence in IT industry. We define market power as the function of product price and the improvement of convergent product’s performance. We also assume the original technology is symbiotic. Based on the above analysis, the paper modifies the Bass Model and the hypotheses of related models, builds a demand growth model of technological convergent products, and uses this model to analyze and estimate the demand growing of converged products. At last, we discuss the conditions that technological convergence will be successful.
Xu Ye,Shen Yang,Wang Zhuo 보안공학연구지원센터 2016 International Journal of Security and Its Applicat Vol.10 No.1
For a better predicting and analyses of robustness and security properties of some networks examples such as scale-free networks, small-world networks and real-world router-level Internet, models with different topologies and variable loads of the corresponding networks were founded firstly. Then, experiments of hybrid attacks ranging from complete random attacks where attack parameter tao=1 to complete targeted attacks where tao=0 were simulated. Results showed clearly that scale-free networks were robust to random failures and quite fragile to target attacks and the progression of networks fragility seems to have power-law distribution with workload parameter. For the NW small-world networks, attacks types are not so much sensitive to the robustness of the networks. What’s found here would be useful for design and implement of some real-world networks.