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Search Results: 1 - 10 of 42537 matches for " Lin Liao "
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A Modified Homotopy Analysis Method for Solving Boundary Layer Equations  [PDF]
Yinlong Zhao, Zhiliang Lin, Shijun Liao
Applied Mathematics (AM) , 2013, DOI: 10.4236/am.2013.41003
Abstract:

A new modification of the Homotopy Analysis Method (HAM) is presented for highly nonlinear ODEs on a semi-infinite domain. The main advantage of the modified HAM is that the number of terms in the series solution can be greatly reduced; meanwhile the accuracy of the solution can be well retained. In this way, much less CPU is needed. Two typical examples are used to illustrate the efficiency of the proposed approach.

Solvent-Free Synthesis of 5-Alkenyl-2,2-butylidene-1, 3-dioxane-4,6-diones under Ultrasonic Irradiation with o-Phthalimide-N-Sulfonic Acid as Catalyst  [PDF]
Chunhua Lin, Zhaohui Xu, Weilin Liao
International Journal of Organic Chemistry (IJOC) , 2013, DOI: 10.4236/ijoc.2013.34039
Abstract:

5-Alkenyl-2,2-butylidene-1,3-dioxane-4,6-diones were synthesized by the Knoevenagel condensation reaction of aromatic aldehydes with 2,2-butylidene-1,3-dioxane-4,6-dione using o-phthalimide-N-sulfonic acid as catalyst, without solvent under ultrasonic irradiation. The present method has some notable advantages such as mild reaction conditions, short reaction times, less catalyst dosage and high yields with the green aspects by avoiding toxic catalysts and solvents. Further, the catalyst can be reused for five times without any noticeable decrease in the catalytic activity.

 

 

Collapse and Construction of System—Starting from the Disappearance of Smart Phones  [PDF]
Chia-Hong Lin-Liao
Current Urban Studies (CUS) , 2017, DOI: 10.4236/cus.2017.52008
Abstract: The intention of this study is to point out that the collapse of a system starts with external force (or unexpected force) instead of time. Therefore, the construction of system relies on external force as well. First, this study starts with a brief introduction to the relationship between a system and the structuration theory with structured agents as external force for explanation; second, the correlation between system and external force is established based on laws of thermal dynamics and the structuration theory; and third, the previous theory of us applied to cases like disasters occurring in Kaohsiung, urban planning, traffic configuration and smart phones, and the external forces existing in a system, possible applications and the issue of difference between social and theoretical systems, hoping that this may provide a building block for quantified data and strategy proposal in the future.
Coarse-Graining Method Based on Hierarchical Clustering on Complex Networks  [PDF]
Lin Liao, Zhen Jia, Yang Deng
Communications and Network (CN) , 2019, DOI: 10.4236/cn.2019.111003
Abstract: With the rapid development of big data, the scale of realistic networks is increasing continually. In order to reduce the network scale, some coarse-graining methods are proposed to transform large-scale networks into mesoscale networks. In this paper, a new coarse-graining method based on hierarchical clustering (HCCG) on complex networks is proposed. The network nodes are grouped by using the hierarchical clustering method, then updating the weights of edges between clusters extract the coarse-grained networks. A large number of simulation experiments on several typical complex networks show that the HCCG method can effectively reduce the network scale, meanwhile maintaining the synchronizability of the original network well. Furthermore, this method is more suitable for these networks with obvious clustering structure, and we can choose freely the size of the coarse-grained networks in the proposed method.
Synchronizability of Two-Layer Cluster Ring Networks  [PDF]
Yang Deng, Zhen Jia, Lin Liao
Communications and Network (CN) , 2019, DOI: 10.4236/cn.2019.112004
Abstract: Multilayer network is a frontier direction of network science research. In this paper, the cluster ring network is extended to a two-layer network model, and the inner structures of the cluster blocks are random, small world or scale-free. We study the influence of network scale, the interlayer linking weight and interlayer linking fraction on synchronizability. It is found that the synchronizability of the two-layer cluster ring network decreases with the increase of network size. There is an optimum value of the interlayer linking weight in the two-layer cluster ring network, which makes the synchronizability of the network reach the optimum. When the interlayer linking weight and the interlayer linking fraction are very small, the change of them will affect the synchronizability.
On Analytic Solutions of (1+3)D Relativistic Ideal Hydrodynamic Equations
Shu Lin,Jinfeng Liao
Physics , 2009, DOI: 10.1016/j.nuclphysa.2010.02.011
Abstract: In this paper, we find various analytic (1+3)D solutions to relativistic ideal hydrodynamic equations based on embedding of known low-dimensional scaling solutions. We first study a class of flows with 2D Hubble Embedding, for which a single ordinary differential equation for the remaining velocity field can be derived. Using this equation, all solutions with transverse 2D Hubble embedding and power law ansatz for the remaining longitudinal velocity field will be found. Going beyond the power law ansatz, we further find a few solutions with transverse 2D Hubble embedding and nontrivial longitudinal velocity field. Finally we investigate general scaling flows with each component of the velocity fields scaling independently, for which we also find all possible solutions. Possible physical relevance of these solutions will be discussed.
Preliminary Observation and Significance of Changes on Rash of Skin Prick Test during SLIT  [PDF]
Weinian Lin, Jinchao Lin, Jun Liao, Runfeng Chen, Zhiwei Huang, Xiaodong Zhang, Wen Lin
International Journal of Otolaryngology and Head & Neck Surgery (IJOHNS) , 2018, DOI: 10.4236/ijohns.2018.74022
Abstract: Objective: To observe the changes on skin wheal and erythema of skin prick test for the patients with allergic rhinitis during SLIT. Methods: Since March 2010 the 103 cases of SLIT attacked by allergic rhinitis patients, divided into four age groups, respectively measured the diameter of skin wheal and erythema before treatment, six months, one year and 2 years after SLIT. The data were analyzed by analysis of variance method; P < 0.01 showed the difference was statistically significant. Results: The results showed that the most changes of skin erythema diameter were statistically significant in N1, N2, N3 age group during test observation compare with the data before SLIT (p < 0.01); and the most changes of allergen wheal diameter were not statistically significant, but the N4 group had no significant change of wheal and erythema diameter. Conclusion: Although most of the skin test wheal did not change significantly during the treatment of SLIT, the erythema reaction decreased to a certain extent, indicating that the intensity of histamine release may be reduced during the treatment.
Cell Segmentation and Tracking in Microfluidic Platform  [PDF]
Lipan Ouyang, Jiandong Wu, Michael Zhang, Francis Lin, Simon Liao
Engineering (ENG) , 2013, DOI: 10.4236/eng.2013.510B047
Abstract:

In this research, we have concentrated on trajectory extraction based on image segmentation and data association in order to provide an economic and complete solution for rapid microfluidic cell migration experiments. We applied region scalable active contour model to segment the individual cells and then employed the ellipse fitting technique to process touching cells. Subsequently, we have also introduced a topology based technique to associate the cells between consecutive frames. This scheme achieves satisfactory segmentation and tracking results on the datasets acquired by our microfluidic platform.

Experimental study on fire extinguishing with a newly prepared multi-component compressed air foam
XiShi Wang,YaoJian Liao,Lin Lin
Chinese Science Bulletin , 2009, DOI: 10.1007/s11434-008-0571-3
Abstract: A multi-component compressed air foam system (MCAFS) was developed with newly prepared multi-component foaming agents. Extinguishing of wood crib and oil pool fires was performed under different conditions, such as foam concentration, mixing chamber forepart structure and working pressure. It was found that the foam concentration had sufficient effects on fire extinguishing efficiency, and an optimized concentration value exists. For instance, for diesel oil pool fires, this value is about 2.2% while it is about 4.0% for wood crib fires. The results also show that the system with a coaxial mixing chamber has greater efficiency than a T-shape. The effects of working pressure on fire extinguishing are evident in experiments, i.e., the higher the working pressure is, the more readily the fire is extinguished.
Experimental study on fire extinguishing with a newly prepared multi-component compressed air foam

XiShi Wang,YaoJian Liao,Lin Lin,

科学通报(英文版) , 2009,
Abstract: A multi-component compressed air foam system (MCAFS) was developed with newly prepared multi-component foaming agents. Extinguishing of wood crib and oil pool fires was performed under different conditions, such as foam concentration, mixing chamber forepart structure and working pressure. It was found that the foam concentration had sufficient effects on fire extinguishing efficiency, and an optimized concentration value exists. For instance, for diesel oil pool fires, this value is about 2.2% while it is about 4.0% for wood crib fires. The results also show that the system with a coaxial mixing chamber has greater efficiency than a T-shape. The effects of working pressure on fire extinguishing are evident in experiments, i.e., the higher the working pressure is, the more readily the fire is extinguished. Supported by the Natural Science Foundation of China (Grant No. 50774072), National Key Technology R&D Program (No. 2006BAK06B07) and Program for New Century Excellent Talents in University (No. NECT-07-0794)
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