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Search Results: 1 - 10 of 98138 matches for " LIU Zhi "
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Study on the Outward FDI in the USA of Chinese Enterprises  [PDF]
Shuangqin Liu, Zhi Li
Open Journal of Social Sciences (JSS) , 2015, DOI: 10.4236/jss.2015.37006
Abstract:

With the rapid economic development, China has sufficient foreign exchange reserves. Together with the appreciation in Chinese currency and other conditions, more and more Chinese enterprises invest overseas especially in the USA. Based on the statistics of the National Bureau of Statistics of the People’s Republic of China, in 2012 and 2013, among the top 3 countries in which Chinese enterprises have invested, the?USA ranked the second with US$ 4047.85 million and the third with US$ 3873.43 million respectively. Chinese enterprises’ FDI in the USA has been mutually beneficial to both China and the USA. However, Chinese enterprises’ FDI in the USA has encountered a variety of obstacles from the USA including American government’s interfering with FDI by political methods, difficulty to enter into some industries, and America’s protectionism. On the other hand, those Chinese enterprises also have some problems in their outward FDI in the USA such as unstable development trend of FDI, enterprises of small size with the privately-owned enterprises as the main body, and unfamiliarity with the related policies and laws. What countermeasures should Chinese enterprises adopt to deal with the obstacles or problems? This paper aims at analyzing the obstacles from the USA and the problems existing in those Chinese enterprises’ FDI in the USA by means of SWOT method and puts forward some corresponding countermeasures for the Chinese enterprises to conduct their outward FDI in the USA more effectively. The conclusions can be used for reference by companies which plan to invest in the USA or other foreign countries.

Social Responsibilities and Evaluation Indicators of Listed Companies in the Perspective of Interest Groups  [PDF]
Shuhua Liu, Li Cai, Zhi Li
American Journal of Industrial and Business Management (AJIBM) , 2012, DOI: 10.4236/ajibm.2012.23014
Abstract: With advocating scientific outlook on development and building a harmonious society, China has paid more and more attention to corporate social responsibilities, which mean that companies should fulfill their duties for the interest groups, such as shareholders, employees, consumers, suppliers, communities and governments. As China’s major economic entities, listed companies are supposed to be the pioneers who undertake on social responsibilities. From the standpoints of interest groups, it is necessary to define and determine the social responsibilities of listed companies, build an evaluation indicator system for their responsibilities, turn their responsibilities from the invisible into the visible and explore evaluation modes as well as scientific methods to evaluate their performance, so as to guide them to perform their social responsibilities properly.
A Retrieval Matching Method Based Case Learning for 3D Model  [PDF]
Zhi Liu, Qihua Chen, Caihong Xu
Journal of Software Engineering and Applications (JSEA) , 2012, DOI: 10.4236/jsea.2012.57053
Abstract: The similarity metric in traditional content based 3D model retrieval method mainly refers the distance metric algorithm used in 2D image retrieval. But this method will limit the matching breadth. This paper proposes a new retrieval matching method based on case learning to enlarge the retrieval matching scope. In this method, the shortest path in Graph theory is used to analyze the similarity how the nodes on the path between query model and matched model effect. Then, the label propagation method and k nearest-neighbor method based on case learning is studied and used to improve the retrieval efficiency based on the existing feature extraction.
Rumor Spreading and Degree-Related Preference Mechanism on a Small-World Network  [PDF]
Zhi Zhu, Fengjian Liu, Dongsheng Liao
Sociology Mind (SM) , 2012, DOI: 10.4236/sm.2012.24061
Abstract: An alternate model for rumor spreading over small-world networks is suggested, of which two rumors (termed rumor 1 and rumor 2) have different nodes and probabilities of acceptance. The propagation is not symmetric in the sense that when deciding which rumor to adopt, high-degree nodes always consider rumor 1 first, and low-degree nodes always consider rumor 2 first. The model is a natural generalization of the well-known epidemic SIS model and reduces to it when some of the parameters of this model are zero. We find that rumor 1 (preferred by high-degree nodes) is dominant in the network when the degree of nodes is high enough and/or when the network contains large clustered groups of nodes, expelling rumor 2. However, numerical simulations on synthetic networks show that it is possible for rumor 2 to occupy a nonzero fraction of the nodes in many cases as well. Specifically, in the NW small-world model a moderate level of clustering supports its adoption, while increasing randomness reduces it.
Technology of Extracting Kiwi Fruit Seed Oil with Ultrasonic-Assisted Enzyme and Response Surface Method  [PDF]
Zhi Zhang, Mengting Pan, Dongmin Liu
Food and Nutrition Sciences (FNS) , 2016, DOI: 10.4236/fns.2016.79081
Abstract: Taken kiwi fruit as raw material, this paper extracted kiwi fruit seed oil with ultrasonic-assisted enzyme, researched the influence of factors such as liquid-to-solid ratio, granularity, type of enzyme, ultrasonic power, treating time, enzymolysis temperature, enzymolysis time, pH and enzyme additive on oil extraction, and optimized the extracting technology of kiwi fruit seed oil with response surface method. The result shows that the best technical parameter is: material granularity: 60, liquid-to-solid ratio: 1:10 (g/mL), ultrasonic power: 400 W, treating time: 30 min, enzyme amount: 2.50%, pH: 9.2, enzymolysis temperature: 53°C, enzymolysis time: 2.80 h; and the extracting ratio under such condition is 92.57%.
Preparation of Microcapsules and Half Life of the Kiwi Fruit Seed Oil by Complex Coacervation  [PDF]
Zhi Zhang, Mengting Pan, Dongmin Liu
American Journal of Plant Sciences (AJPS) , 2017, DOI: 10.4236/ajps.2017.82015
Abstract: The experiment adopts complex coacervation to prepare microcapsules. Through the experimental comparison, soybean protein isolated-maltodextrin is determined as the wall material for the experimental preparation of the microcapsules of kiwi fruit seed oil. This paper researched the effects of wall material concentration, core wall ratio and other factors on complex coacervation of kiwi fruit seed oil microcapsules embedding rate, determining that the best wall material concentration is 1%, core wall ratio is 1:1, and the optimum pH ratio is 3.0, temperature is 40°C, and the optimum curing time is 6 hours. The experiment carried out half life research on the microcapsules prepared by the complex coacervation of kiwi fruit seed oil microcapsule. By calculation: the degradation rate constant of kiwi fruit seed oil microcapsules prepared by complex coacervation is 2.793. According to the regression equation it can calculate the half life of kiwi fruit seed oil microcapsules is 18.58 months, about a year and a half.
A Continuous Approach to Binary Quadratic Problems  [PDF]
Zhi Liu, Zhensheng Yu, Yunlong Wang
Journal of Applied Mathematics and Physics (JAMP) , 2018, DOI: 10.4236/jamp.2018.68147
Abstract: This paper presents a continuous method for solving binary quadratic programming problems. First, the original problem is converted into an equivalent continuous optimization problem by using NCP (Nonlinear Complementarity Problem) function, which can be further carry on the smoothing processing by aggregate function. Therefore, the original combinatorial optimization problem could be transformed into a general differential nonlinear programming problem, which can be solved by mature optimization technique. Through some numerical experiments, the applicability, robustness, and solution quality of the approach are proved, which could be applied to large scale problems.
The λ-Characteristics of the Ring Laser Based on Non-Uniform SOA  [PDF]
Zhi Wang, Limei Zhang, Yingfeng Liu, Lanlan Liu
Journal of Computer and Communications (JCC) , 2013, DOI: 10.4236/jcc.2013.17013
Abstract: Semiconductor optical amplifier-based ring cavity laser (SOA-RL), which has been widely used in optical communications, optical fiber sensing, and biophotonics fields, can be tuned at an ultra high speed up to Mega Hertz over 100 nm bandwidth range with high SNR and flatness output. A steady-state model and segmentation algorithms are employed to investigate the gain spectra of four kinds of non-uniform SOA and the lasing wavelength of the SOA-RL. It shows that the dependence of the lasing wavelength on the average width is stronger when the light propagates from narrower to wider end than conversely, and there are some particular structures to show ultra high stability lasing wavelength. It is supposed that the main reason could be the carrier density distribution along the propagation.
A Direct Adaptive MNN Control Method for Stage Having Paired Reluctance Linear Actuator with Hysteresis  [PDF]
Yu-Ping Liu, Kang-Zhi Liu, Xiaofeng Yang
Intelligent Control and Automation (ICA) , 2014, DOI: 10.4236/ica.2014.54023
Abstract: Reluctance linear actuator, which has a unique property of small volume, low current and can produce great force, is a very promising actuator for the fine stage of the next-generation lithographic scanner. But the strong nonlinearities including the hysteresis, between the current and output force limits the reluctance linear actuator applications in nanometer positioning. In this paper, a new nonlinear control method is proposed for the stage having paired reluctance linear actuator with hysteresis using the direct adaptive neural network, which is used as a learning machine of nonlinearity. The feature of this method lies in that the nonlinear compensator in conventional methods, which computed the current reference from that of the input and output force is not used. This naturally overcomes the robustness issue with respect to parameter uncertainty. Simulation results show that the proposed method is effective in overcoming the nonlinearity between the input current and output force and promising in precision stage control.
Induction of Sodium/Iodide Symporter (NIS) Expression and Radioiodine Uptake in Non-Thyroid Cancer Cells
Zhi Liu, Mingzhao Xing
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0031729
Abstract: Background This study was designed to explore the therapeutic potential of suppressing MAP kinase and PI3K/Akt pathways and histone deacetylase (HDAC) to induce the expression of sodium/iodide symporter (NIS) and radioiodine uptake in non-thyroid cancer cells. Methods We tested the effects of the MEK inhibitor RDEA119, the Akt inhibitor perifosine, and the HDAC inhibitor SAHA on NIS expression in thirteen human cancer cell lines derived from melanoma, hepatic carcinoma, gastric carcinoma, colon carcinoma, breast carcinoma, and brain cancers. We also examined radioiodine uptake and histone acetylation at the NIS promoter in selected cells. Results Overall, the three inhibitors could induce NIS expression, to various extents, in melanoma and all the epithelial carcinoma-derived cells but not in brain cancer-derived cells. SAHA was most effective and its effect could be significantly enhanced by RDEA119 and perifosine. The expression of NIS, at both mRNA and protein levels, was most robust in the melanoma cell M14, hepatic carcinoma cell HepG2, and the gastric carcinoma cell MKN-7 cell. Radioiodine uptake was correspondingly induced, accompanied by robust increase in histone acetylation at the NIS promoter, in these cells when treated with the three inhibitors. Conclusions This is the first demonstration that simultaneously suppressing the MAP kinase and PI3K/Akt pathways and HDAC could induce robust NIS expression and radioiodine uptake in certain non-thyroid human cancer cells, providing novel therapeutic implications for adjunct radioiodine treatment of these cancers.
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