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Search Results: 1 - 10 of 38033 matches for " Huini Lin "
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Finite-Time Combination-Combination Synchronization for Hyperchaotic Systems
Huini Lin,Jianping Cai,Jincheng Wang
Journal of Chaos , 2013, DOI: 10.1155/2013/304643
Abstract: A new type of finite-time synchronization with two drive systems and two response systems is presented. Based on the finite-time stability theory, step-by-step control and nonlinear control method, a suitable controller is designed to achieve finite-time combination-combination synchronization among four hyperchaotic systems. Numerical simulations are shown to verify the feasibility and effectiveness of the proposed control technique. 1. Introduction As a new subject in 1980s, chaos almost covers all the fields of science. It is known that chaos is an interesting nonlinear phenomenon which may lead to irregularity and unpredictability in the dynamic system, and it has been intensively studied in the last three decades. Since Pecora and Carroll proposed the PC method to synchronize two chaotic systems in 1990 [1, 2], the study of synchronization of chaotic systems has been widely investigated due to their potential applications in various fields, for instance, in chemical reactions, biological systems, and secure communication. Over the past decades, a variety of control approaches such as adaptive control [3], linear feedback control [4], active control [5], and backstepping control [6] have been proposed for various types of synchronization, which include complete synchronization [7], projective synchronization [8, 9], general synchronization [10], lag synchronization [11], and novel compound synchronization [12]. Most of the aforementioned works are based on the synchronization scheme which consists of one drive system and one response system and can be seen as one-to-one system. However, we found it not secure and flexible enough in many real world applications, for instance, in secure communication. Recently, Runzi et al. presented a new type of synchronization with two drive systems and one response system [13]. Then, Sun et al. extended multi-to-one system to multi-to-two systems and reported a new type of synchronization, namely, combination-combination synchronization, where synchronization is achieved between two drive systems and two response systems [14]. The type of synchronization can improve the security of communication; for instance, we can split the transmitted signals into several parts, then load each part in different drive systems, and then restore it to the original signals by combining the received signals of different response systems correctly. Notice that the mentioned literatures mainly investigated the asymptotic synchronization of chaotic systems. However, in the view of practical application, optimizing the synchronization
NETRIN-4 Protects Glioblastoma Cells FROM Temozolomide Induced Senescence
Li Li, Yizhou Hu, Irene Ylivinkka, Huini Li, Ping Chen, Jorma Keski-Oja, Marko Hyyti?inen
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0080363
Abstract: Glioblastoma multiforme is the most common primary tumor of the central nervous system. The drug temozolomide (TMZ) prolongs lifespan in many glioblastoma patients. The sensitivity of glioblastoma cells to TMZ is interfered by many factors, such as the expression of O-6-methylguanine-DNA methyltransferase (MGMT) and activation of AKT signaling. We have recently identified the interaction between netrin-4 (NTN4) and integrin beta-4 (ITGB4), which promotes glioblastoma cell proliferation via activating AKT-mTOR signaling pathway. In the current work we have explored the effect of NTN4/ITGB4 interaction on TMZ induced glioblastoma cell senescence. We report here that the suppression of either ITGB4 or NTN4 in glioblastoma cell lines significantly enhances cellular senescence. The sensitivity of GBM cells to TMZ was primarily determined by the expression of MGMT. To omit the effect of MGMT, we concentrated on the cell lines devoid of expression of MGMT. NTN4 partially inhibited TMZ induced cell senescence and rescued AKT from dephosphorylation in U251MG cells, a cell line bearing decent levels of ITGB4. However, addition of exogenous NTN4 displayed no significant effect on TMZ induced senescence rescue or AKT activation in U87MG cells, which expressed ITGB4 at low levels. Furthermore, overexpression of ITGB4 combined with exogenous NTN4 significantly attenuated U87MG cell senescence induced by TMZ. These data suggest that NTN4 protects glioblastoma cells from TMZ induced senescence, probably via rescuing TMZ triggered ITGB4 dependent AKT dephosphorylation. This suggests that interfering the interaction between NTN4 and ITGB4 or concomitant use of the inhibitors of the AKT pathway may improve the therapeutic efficiency of TMZ.
Phase Identification Using Series of Selected Area Diffraction Patterns and Energy Dispersive Spectrometry within TEM  [PDF]
Kun-Lin Lin
Microscopy Research (MR) , 2014, DOI: 10.4236/mr.2014.24008
Abstract: Transmission electron microscopy (TEM) is a very powerful technique for materials characteriza-tion, providing information relating to morphology, composition, and crystal structure. Selected area diffraction patterns (SADPs) are crystallographic data that can be obtained using a TEM in-strument. Conventional identification through SADP/TEM is tricky and tedious, thereby increasing the difficulty of phase identification. To establish a procedure for phase identification of known and unknown phases, in this study we examined two samples: one, a known phase, was Si with <100> alignment; the other, unknown, was the TixOy phase at the 96.4Au-3Ni-0.6Ti interlayer/ yttria-stabilized zirconia (YSZ) interface of a steel/96.4Au-3Ni-0.6Ti interlayer/YSZ joint. The procedures for phase identification of the known and unknown phases are described herein using a series of SADPs and energy dispersive spectrometry within TEM that would be useful for general researchers.
Research on the Impact of Supply Chain Integration of Startups: Service Supply Chain Perspective  [PDF]
Han Lin, Qian Lin
Open Journal of Social Sciences (JSS) , 2018, DOI: 10.4236/jss.2018.64022
As the potential power of social economic development, the importance of startups has attracted more and more attention from academia. The service supply chain, led by the service integrator, can help the startups to improve the performance of the enterprise, achieve better supply chain integration, and go through their “infancy” period successfully. However, the research about the factors that influence the integration of service supply chain and how these factors affect the supply chain integration of startups remains to be explored. Based on the practical problems and theoretical research status above, this study constructs a theoretical hypothesis model of the relationship between interaction, supply chain finance and supply chain integration, and we take the survey data of 65 startups in Pearl River Delta of China as samples and use hierarchical regression analysis to carry out hypothesis testing. The result shows that, from the perspective of startups, interaction has a positive impact on supplier integration, internal integration and customer integration, and supply chain finance has a positive impact on internal integration. The main significance of this study is to make up for the vacancy on this part of the academic community in the service supply chain, and help provide some reference basis for start-up enterprises’ supply chain integration.
Influence of Dams on River Ecosystem and Its Countermeasures  [PDF]
Qicai Lin
Journal of Water Resource and Protection (JWARP) , 2011, DOI: 10.4236/jwarp.2011.31007
Abstract: Dam construction is an important engineering measure in dealing with the relationship between water and human being. However, with dam construction, some disadvantages to the river basin may be caused, including flow flux of downstream changed, flooded area reduced, river species and other organisms changed and substance sedimentation. Furthermore, it brings some diseases to human being and human residential areas reduced too. Based on the basic principles of ecohydralic engineering, some countermeasures to minimize the negative effects on rivers were put forward. They are reservoir ecological regulation, ecohydraulic engineering construction and comprehensive water pollution treatment.
Disciplinization of History Education in Modern China: A Study of History Education in the Imperial University of Peking (1898-1911)  [PDF]
Lin Li
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.34084
Abstract: Through a thorough investigation on the history education in the Imperial University of Peking from 1898 to 1911, this paper attempts to highlight the following findings. 1) The disciplinization of history education and the transformation of traditional historiography were concurrently incepted in the late Qing period. The Imperial University of Peking served as a pivotal platform for the realization of this synchronous process. 2) History instructors and students of this university can be regarded as initial participants in the new school system, as well as pioneering practitioners of the New History. 3) Zhongti xiyong, as the fundamental tenet of this university, in actual practice, was utilized as a slogan for justifying the introduction of Western learning. 4) Japan exerted tremendous influence on the history education at this university through sending history instructors and “re-exporting” new historical methods to China. 5) During the period discussed, there were in total twenty history instructors at this university. Their qualifications were commendable. 6) Regulations concerning history curriculum design, instruction and examination of the university assumed the task of alleviating the political and economic ordeals of China. Nonetheless, as with other reforms in the late Qing era, the government’s reformation efforts in this university could not rescue it from the predicament of “negative repercussions”.
Game Analysis of SME Financing  [PDF]
Pingzhong Lin
Journal of Financial Risk Management (JFRM) , 2012, DOI: 10.4236/jfrm.2012.14011
Abstract: The SMEs (small and medium-sized enterprises) play important role in the economy. However, the financing problem is a big difficulty, which has plagued the SMEs’ development. Information asymmetry is the main reason for the SMEs’ gaining funds so hard. The information asymmetry between banks and enterprises is that banks do not know the operating conditions and credit situation of SMEs. Then, to some extent, the banks are reluctant to support credit for businesses under the circumstance of lacking appropriate information, resulting in a “credit crunch” behavior. Therefore, the main measures of solving SMEs’ financing difficulty are to overcome the information asymmetry in the process of SME financing by establishing effective information mechanisms, the credibility and restraint mechanisms, strengthening the construction of credit rating agencies, and promoting the mutual exchange of information.
Letter to the Editor  [PDF]
Lin Shi
Advances in Alzheimer's Disease (AAD) , 2013, DOI: 10.4236/aad.2013.23010
Abstract: Letter; Alzheimer’s Disease
3-D Modelling of the Confederation Bridge Using Data of Full Scale Tests  [PDF]
Lan Lin
Open Journal of Civil Engineering (OJCE) , 2013, DOI: 10.4236/ojce.2013.33B004

Long-span bridges are special structures that require advanced analysis techniques to examine their performance. This paper presents a procedure developed to model the Confederation Bridge using 3-D beam elements. The model was validated using the data collected before the opening of the bridge to the public. The bridge was instrumented to conduct fullscale static and dynamic tests. The static tests were to measure the deflection of the bridge pier while the dynamic tests to measure the free vibrations of the pier due to a sudden release of the static load. Confederation Bridge is one of the longest reinforced concrete bridges in the world. It connects the province of Prince Edward Island and the province of New Brunswick in Canada. Due to its strategic location and vital role as a transportation link between these two provinces, it was designed using higher safety factors than those for typical highway bridges. After validating the present numerical model, a procedure was developed to evaluate the performance of similar bridges subjected to traffic and seismic loads. It is of interest to note that the foundation stiffness and the modulus of elasticity of the concrete have significant effects on the structural responses of the Confederation Bridge.

Modeling and Simulation in Spectroscopic Study  [PDF]
Lin Huang
Spectral Analysis Review (SAR) , 2014, DOI: 10.4236/sar.2014.23023
Abstract: Editorial; SAR
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