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Search Results: 1 - 10 of 88196 matches for " LIU Meng "
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Algorithm of Iterative Process for Some Mappings and Iterative Solution of Some Diffusion Equation  [PDF]
Wenjun Liu, Jinghua Meng
Open Journal of Applied Sciences (OJAppS) , 2012, DOI: 10.4236/ojapps.2012.24B015
Abstract: In Hilbert spaces , through improving some corresponding conditions in some literature and extending some recent relevent results, a strong convergence theorem of some implicit iteration process for pesudocon-traction mappings and explicit iteration process for nonexpansive mappings were established. And by using the result, some iterative solution for some equation of response diffusion were obtained.
Risk Early-Warning Method for Natural Disasters Based on Integration of Entropy and DEA Model  [PDF]
Fengshan Wang, Yan Cao, Meng Liu
Applied Mathematics (AM) , 2011, DOI: 10.4236/am.2011.21003
Abstract: Risk early-warning of natural disasters is a very intricate non-deterministic prediction, and it was difficult to resolve the conflicts and incompatibility of the risk structure. Risk early-warning factors of natural disasters were differentiated into essential attributes and external characters, and its workflow mode was established on risk early-warning structure with integrated Entropy and DEA model, whose steps were put forward. On the basis of standard risk early-warning DEA model of natural disasters, weight coefficient of risk early-warning factors was determined with Information Entropy method, which improved standard risk early-warning DEA model with non-Archimedean infinitesimal, and established risk early-warning preference DEA model based on integrated entropy weight and DEA Model. Finally, model was applied into landslide risk early-warning case in earthquake-damaged emergency process on slope engineering, which exemplified the outcome could reflect more risk information than the method of standard DEA model, and reflected the rationality, feasibility, and impersonality, revealing its better ability on comprehensive safety and structure risk.
Social Balance in the Triangle-Growing Networks  [PDF]
Wei Liu, Qing-Kuan Meng
Social Networking (SN) , 2013, DOI: 10.4236/sn.2013.23014
Abstract: In this article, we construct a triangle-growing network with tunable clusters and study the social balance dynamics in this network. The built network, which could reflect more features of real communities, has more triangle relations than the ordinary random-growing network. Then we apply the local triad social dynamics to the built network. The effects of the different cluster coefficients and the initial states to the final stationary states are discussed. Some new features of the sparse networks are found as well.
Recent Climate Changes in Hailuogou Watershed on the Eastern Slope of Mount Gongga, South-Eastern Fringe of the Tibetan Plateau, China  [PDF]
Yuchuan Meng, Guodong Liu, Mingxi Li
Journal of Geoscience and Environment Protection (GEP) , 2015, DOI: 10.4236/gep.2015.32008
Abstract:

Mountainous regions are particularly sensitive to climate change. Seasonal and annual variations in climate already strongly influence the ecosystems in such areas. Temporal and spatial variations of temperature and precipitation, for higher elevation site (Hailuogou Station) and lower elevation site (Moxi Station) within Hailuogou watershed which is located on the eastern slope of Mount Gongga, China, were analyzed to evaluate the extent and trend of climate change. Climate data were carefully checked and corrected for errors before being analyzed. The results of this work indicate that the measured climate data contain a wide magnitude of variations in temperature and precipitation in the mountainous region. The annual, minimal and maximal temperatures exhibit some increasing trends during the studied period. The results of this work show that slightly warming climate is mostly caused by increasing minimum temperature. Maximal precipitation mostly occurs in July and minimal precipitation mostly occurs in December. There exists a slightly declining trend of precipitation during 1988-2009. Precipitation exhibits an increasing trend with altitude, whereas the temperature has the reverse trend in the alpine area during studied period.

Electronic Transport Properties of Transition-Metal Terminated Trigonal Graphene Nanoribbons  [PDF]
Fanhua Meng, Minghua Zhang, Wen Liu
Journal of Modern Physics (JMP) , 2016, DOI: 10.4236/jmp.2016.711122
Abstract: With the non-equilibrium Green’s function method and density functional theory, we have studied the electronic properties of trigonal graphene nanoribbons, with Fe terminal and H terminal, coupled to gold electrodes. Rectification behavior can be observed when the electrode-molecule contact distance is larger than 2.2 Å. The electronic transport is greatly improved in case of Fe terminal which is analyzed in terms of transmission spectra and density of states.
The Risks and Strategies of High Leverage  [PDF]
Yuting Liu, Qingjun Meng, Yong Ma
Open Journal of Social Sciences (JSS) , 2016, DOI: 10.4236/jss.2016.48013
Abstract: Under the background of slow economic development speed, the state has issued a series of policies to realize destocking due to the serious real estate destocking in China. The problem about high leverage of real estate also emerges gradually due to the policies of reducing the proportion of down payment. The high leverage of real estate might bring about risks such as: building market bubble and increased risk in bank credit risk. However, there are a lot of difficulties to overcome to remove leverage. For example, the pressure over destocking is heavier and real estate bubble could be easily brought about. Only by positively adopting measures and conducting regulation positively, improving leverage structure of real estate market and boosting real estate market destocking, the financial risk can be prevented and controlled.
Problems and Countermeasures about Social Capital’s Participating in Water Pollution Control PPP Project  [PDF]
Yong Ma, Qingjun Meng, Yuting Liu
Open Journal of Social Sciences (JSS) , 2016, DOI: 10.4236/jss.2016.48011
Abstract: In order to improve the quality and efficiency of water pollution prevention and control project, the State encouraged social capital to participate in water pollution prevention and control PPP projects. But there are some problems in the field, including a low rate of return on investment, the imperfect investment environment and so on which hinder the participation of social capital in these PPP projects. So we need to perfect the social capital investment return mechanism, and establish a fair and safe investment environment and take other measures.
The Enlightenment to China from UK’s Pension Entering Capital Market  [PDF]
Yuting Liu, Qingjun Meng, Yong Ma
American Journal of Industrial and Business Management (AJIBM) , 2016, DOI: 10.4236/ajibm.2016.68084
Abstract: As the aging problem is increasingly serious in China, the pension operation and management attract more and more attentions. However, China’s pension yields have been low, leaving a lot of problems. There are growing calls to make China’s pension enter capital market. While, there exists many risks, such as the unavoidable stock market risk and the potential risk in the “principal-agent”. Pension management should be of caution and safety. Attentions should be paid to improve relevant laws, strengthen supervision, perfect China’s multi-pillar pension system and so on. UK has enlightened China on pension entering capital market.
Countermeasures for Implementing Strategy for Orderly Real Estate Destocking  [PDF]
Yong Ma, Qingjun Meng, Yuting Liu
American Journal of Industrial and Business Management (AJIBM) , 2016, DOI: 10.4236/ajibm.2016.68085
Abstract: Under the background of slow economic development speed in China, orderly real estate destocking is related to national economy and people’s livelihood. Orderly destocking faces some problems, such as heavy pressure over orderly destocking and severe regional and structural differentiation. According to present situation, it is necessary to take control of supply and demand of real estate properly and implement differentiated regulation and control policy and other measures to implement the strategy of real estate destocking.
RETRACTED:Comparative Proteomic Analysis in Blattella germanica (Blattodea: Blattellidae) under Short- and Long-Term Beta-Cypermethrin Insecticide Stress  [PDF]
Yinfeng Liu, Meng Jiang, Fan Zhang
Agricultural Sciences (AS) , 2019, DOI: 10.4236/as.2019.103035
Abstract:

Short Retraction Notice?

This article has been retracted to straighten the academic record. In making this decision the Editorial Board follows COPE's?Retraction Guidelines. The aim is to promote the circulation of scientific research by offering an ideal research publication platform with due consideration of internationally accepted standards on publication ethics. The Editorial Board would like to extend its sincere apologies for any inconvenience this retraction may have caused.

Please see the?article page?for more details. The full retraction notice in PDF is preceding the original paper which is marked \"RETRACTED\".?

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