27,172 research outputs found
Liu Kang
No full textLiu Kang: Essays on Art and Culture is a testament to the inexorable passion of an artist who knew no boundaries. This collection of essays, which Liu Kang wrote over 44 years, offers an insight into the artist’s myriad interests as well as his contributions as a first generation Nanyang artist and art educator. Translated into English for this volume, Liu Kang’s essays are accompanied by commentaries and photographs of the artist-author and his subjects
sj-doc-1-inq-10.1177_00469580221128735 – Supplemental material for Long-term Care Facility and its Elderly Chronic Diseases in Jishou: Insights into Underdeveloped Area of China
No full textSupplemental material, sj-doc-1-inq-10.1177_00469580221128735 for Long-term Care Facility and its Elderly Chronic Diseases in Jishou: Insights into Underdeveloped Area of China by Fen Xie, Jinxiu Li, Wenkai Song, Quanlong Liu, Siping Jiang, Zheng-ying Chen and Qingxia Shu in INQUIRY: The Journal of Health Care Organization, Provision, and Financing</p
sj-pdf-2-inq-10.1177_00469580221128735 – Supplemental material for Long-term Care Facility and its Elderly Chronic Diseases in Jishou: Insights into Underdeveloped Area of China
No full textSupplemental material, sj-pdf-2-inq-10.1177_00469580221128735 for Long-term Care Facility and its Elderly Chronic Diseases in Jishou: Insights into Underdeveloped Area of China by Fen Xie, Jinxiu Li, Wenkai Song, Quanlong Liu, Siping Jiang, Zheng-ying Chen and Qingxia Shu in INQUIRY: The Journal of Health Care Organization, Provision, and Financing</p
Data for: Bulk and Surface Properties of Gypsum: A Comparison between Classical Force Fields and Dispersion-Corrected DFT Calculations
No full textLAMMPS input files to run molecular dynamics simulations for gypsum with different force fields
Phoebus 10: A Journal of Art History
No full texttableOfContents: Homage to the Past: The Art of Yin Xiaofeng by Ralph Gabbard and Liu Liu.. pages 5-1
Cultural exploitation in chinese politics: Reinterpreting liu sanjie
No full textLiu Sanjie is a typical Chinese legendary figure, adapted from folk custom and transformed during many historical and political stages. By comparing the musical film Liu Sanjie with the landscape performing art Impression Liu Sanjie, this paper explores how Liu Sanjie is reconstructed in the Impression to be in accord with contemporary demands (shidaixing). In the film, made during the 1960s, Liu Sanjie was promoted as a heroine fighting against the privileged classes, but in the Impression, her class struggle has been erased and only a harmonious and abstract legend remains. Her ethnicity is promoted by Han elites as not exclusive Zhuang, but shared equally with Han, Miao and Dong ethnicity in an imagined community to propagate a sense of ethnic harmony and unified Chineseness. Her transformation from a realistic character, full of a rebelling spirit, to an abstract and disembodied ‘sense of harmony’, is a complete reinterpretation of a Chinese historical legend. Utilizing a term from Wang Ban (1997), ‘the sublime figure of history’, which refers to an ideology aestheticized by the party state for securing its governance, this paper refers to the bold artistic treatment of Liu Sanjie for cultural exploitation as ‘Liu Sanjie’s sublime’. The paper explores the evolutionary progress of Liu Sanjie from class revolution to art revolution in response to political requirements. The author is a stage-trained performing artist, specialized in both Western opera and Chinese classical and folk singing and dance. He is also a critic and art consultant in the Chinese landscape performing arts industry. These professional roles have allowed privileged access to the top people in this industry
Simulation Evaluation of Threshold-Based Bus Control Strategy Under the Mixed Traffic Condition
No full textImplementing operational strategies is a sustainable and effective way for providing good bus serviceability, but the effects of the strategies on other traffic participants, e.g., cars, have drawn little attention. This paper thus aims to explore the effects of the mutual interference between buses and private cars, when applying a bus control strategy to a regular transit line. Three threshold-based strategies are compared, including (a) holding control (HC); (b) limited boarding control (LBC) and (c) holding combined with limited boarding control (H-LBC). A cellular automaton based model is proposed to depict the interaction between cars and buses, and the model parameters are calibrated using data collected from a real-life bus route in Beijing, China. The control strategies are evaluated by their benefits for three stakeholders involved in the system, including passengers, bus operator and car drivers. Simulation results show that a good bus control strategy does not only improve the efficiencies of bus operating and passenger travel, but also speed up the car running by alleviating traffic congestion. In turn, the car volume is an important factor when setting the optimal parameter for control strategies. Moreover, the comparison suggests that H-LBC outperforms the other two strategies in improving the service level for passengers, buses as well as cars, especially under crowded scenarios.This work was supported by the National Key R&D Program of China (Grant No. SQ2018YFB16001803), the Foundation for Innovative Research Groups of the National Natural Science Foundation of China (Grant No. 71621001)
Test Make Sense?
No full textCorresponding author Changyu Liu should be listed as the first corresponding author.No Full Tex
Graph-based Methods for Ontology Summarization: A Survey
No full textOntologies have been widely used in numerous and varied applications, e.g., to support data modeling, information integration, and knowledge management. With the increasing size of ontologies, ontology understanding, which is playing an important role in different tasks, is becoming more difficult. Consequently, ontology summarization, as a way to distill key information from an ontology and generate an abridged version to facilitate a better understanding, is getting growing attention. In this survey paper, we review existing ontology summarization techniques and focus mainly on graph-based methods, which represent an ontology as a graph and apply centrality-based and other measures to identify the most important elements of an ontology as its summary. After analyzing their strengths and weaknesses, we highlight a few potential directions for future research
Fundamental Study of Bubble Coalescence in Solutions and on Surfaces
No full textThe coalescence of air bubbles is an elementary process influencing the performance of various industrial processes such as oil extraction, water purification, and mineral flotation. The possible coalescence between two colliding bubbles is significantly influenced by the liquid drainage rate from the thin film trapped between the bubbles.
The focus of this thesis is to investigate the film dynamics between fast colliding air bubbles in aqueous solutions. A unique method is developed based on a custom-designed Dynamic Force Apparatus (DFA). Two bubbles, one generated at the orifice of a capillary tube, the other immobilized on a transparent hydrophobic glass (surface microbubble), are brought together for the collision at controlled speeds. During the bubble collision, the interaction force and the interference fringes are obtained simultaneously. Experimental parameters can be flexibly adjusted, including the surface microbubble size, solution concentration, and collision speed.
Under aged/contaminated conditions, the air-water interface is immobile. The interaction force and the initial formation of the dimple profile during the collision, agree well with the prediction from the Stokes-Reynolds-Young-Laplace model with the tangentially immobile boundary condition at the air-liquid interface. However, an ‘express exit’ was observed during bubble collision, leading to the unexpected rapid drainage of the trapped liquid. This phenomenon partially explains the shorter coalescence times from experiments as compared with model predictions. The film rupture thickness was consistently observed at 25±15 nm.
In contrast, when clean water was used, the film thinning rate was almost equal to the collision speed, resulting in bubble coalescence within milliseconds. The experimental data are explained by a theoretical model assuming mobile boundary condition at the air-water interface. Changing the interfacial tension by 10-4 N/m, by adding a small amount of surfactant, would be sufficient to immobilize the air-water interface. The surface mobility is determined by the competition of fluid shear stress on the film surface and the Marangoni stress that arises from the uneven distribution of surface-active components at the air-water interface. The above finding proved the existence of fully mobile air-water interfaces in bubble coalescence, and also explained why this boundary condition is difficult to be achieved experimentally in previous research.
The following exploration was conducted in surfactant solutions at the concentration of up to 2 mM. A simple experimental technique was developed, in which the freshly generated bubbles can collide after staying in bulk for a very short period (~10 ms or ~50 ms). From the bounce or coalescence results, we found that the mobile air-water interface is achievable even in surfactant solutions similar to those used in industrial processes. The freshly generated bubbles can be mobile and may switch to immobile after staying in bulk for tens of milliseconds. The surface mobility is jointly determined by the aging time and bulk surfactant concentration, corresponding to the dynamic adsorption of the surfactant onto the air-water interface. This work bridges the fundamental understanding of surface mobility to real applications
- …
