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Search Results: 1 - 10 of 14219 matches for " Fan Weiwei "
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American Values Reflected in Names of US Supermarkets, the Top Five Values and American Dream  [PDF]
Zhong Wang, Weiwei Fan
Open Journal of Modern Linguistics (OJML) , 2013, DOI: 10.4236/ojml.2013.34045
Abstract: This study based its foundation on a qualitative study of organizations that are closely related to people’s daily life—supermarkets, more exactly supermarket names and analyzed values represented in these names. 211 supermarket names were collected and values were extracted from these subjects, then the frequency and frequency rates of each individual value were calculated by SPSS 17. At last, 20 values were obtained. Among them, the top five values were individualism, directness, nature, cultural identity, efficiency and practicality, which respectively took up 19.8%, 7.9%, 5.8%, 5.3% and 5.3%. Individualism, one of the dominant values in American society, ranked the first in terms of frequency rate, representing people’s desire in memorizing their achievement and success as well as demonstrating personal responsibilities; directness showed people’s straightforward way of expression; nature demonstrated the fervent love for nature and the original and simple ways of solving problems, and nature also symbolized the “return for nature”; cultural identity, also collective identity, meant people’s identification as a member of a group; efficiency and practicality were to seek the fast and cheapest way of achieving a goal. What was surprising was the reflection of nature and cultural identity, which were rarely mentioned as belonging to core American values. Besides, the American Dream values, covering individualism, competition, freedom, pioneering spirit, superiority and nationalism, constituted about 27% of the totality of frequency rate, which proved the unwavering charm of American dream in American society.
Study of the Relationship between Chinese College Students’ International Posture and Their Intercultural Willingness to Communicate  [PDF]
Güliz Ulu, Fan Weiwei, Shi Yu
Chinese Studies (ChnStd) , 2015, DOI: 10.4236/chnstd.2015.43012
Abstract: This paper involves an investigation of the relationship between Chinese college students’ international posture and their intercultural willingness to communicate (IWTC) by means of questionnaires obtained from 167 Chinese college students. The results of the Pearson correlation show that there is a significant positive relationship between international posture and IWTC. In addition, the results of the multiple linear regressions indicate that Intercultural Friendship Orientation in English learning that is one factor of the international posture can significantly predict students’ IWTC.
The Analysis of the Causes in Changes of Japan’s ODA Policies to China  [PDF]
Chen Lu, Weiwei Fan
Open Access Library Journal (OALib Journal) , 2014, DOI: 10.4236/oalib.1100483
Abstract:

This paper discusses recent issues related to the changes in the relationship between Japan and China, mainly focuses on the alterations in Japan’s ODA towards China during 30 years and its reasons from economic and political perspectives. The changes can be divided into three main periods. The first period was in the 1980s to mitigate the pressure of Sino-Japanese relationship and regain Japanese economic vitality in postwar; the second was in the 1990s, Japan shifted its ODA policy from “development aid” to “strategic aid” after the Cold War, and the third was in the beginning of the 21st century, Japan reduced the Yen loans sharply to China (Shen 2007). The paper will start researching the question from those points, namely what are the related backgrounds of ODA policies in those three periods, and the causes of the changes, and in the end the article draws a conclusion of the benefits from ODA to both Japan and China, and the implication of this case.

Interfacial Actions and Adherence of an Interpenetrating Polymer Network Thin Film on Aluminum Substrate  [PDF]
Weiwei Cui, Dongyan Tang, Jie Liu, Fan Yang
Journal of Surface Engineered Materials and Advanced Technology (JSEMAT) , 2011, DOI: 10.4236/jsemat.2011.13013
Abstract: The interpenetrating polymer networks (IPN) thin film with the –C=O group in one network and the terminal –N=C=O group in another network on an aluminum substrate to reinforce the adherence between IPN and aluminum through interfacial reactions, were obtained by dip-pulling the pretreated aluminum substrate into the viscous-controlled IPN precursors and by the following thinning treatment to the IPN film to a suitable thickness. The interfacial actions and the adhesion strengths of the IPN on the pretreated aluminum substrate were investigated by the X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR) and strain-stress(?-?) measurements. The XPS and FTIR detection results indicated that the elements’ contents of N, O, and Al varied from the depths of IPN. The in-terfacial reaction occurred between the –N=C=O group of IPN and the AlO(OH) of pretreated aluminum. The in-creased force constant for –C=O double bond and the lower frequency shift of –C=O stretching vibration absorption peak both verified the formation of hydrogen bond between the –OH group in AlO(OH) and the –C=O group in IPN. The adherence detections indicated that the larger amount of –N=C=O group in the IPN, the higher shear strengths between the IPN thin film and the aluminum substrate.
Penalized Composite Quasi-Likelihood for Ultrahigh-Dimensional Variable Selection
Jelena Bradic,Jianqing Fan,Weiwei Wang
Statistics , 2009, DOI: 10.1111/j.1467-9868.2010.00764.x
Abstract: In high-dimensional model selection problems, penalized simple least-square approaches have been extensively used. This paper addresses the question of both robustness and efficiency of penalized model selection methods, and proposes a data-driven weighted linear combination of convex loss functions, together with weighted $L_1$-penalty. It is completely data-adaptive and does not require prior knowledge of the error distribution. The weighted $L_1$-penalty is used both to ensure the convexity of the penalty term and to ameliorate the bias caused by the $L_1$-penalty. In the setting with dimensionality much larger than the sample size, we establish a strong oracle property of the proposed method that possesses both the model selection consistency and estimation efficiency for the true non-zero coefficients. As specific examples, we introduce a robust method of composite L1-L2, and optimal composite quantile method and evaluate their performance in both simulated and real data examples.
Dynamic Pricing of Perishable Products with Competition  [PDF]
Weiwei Ji
Open Journal of Social Sciences (JSS) , 2015, DOI: 10.4236/jss.2015.33010
Abstract:

With the development of product development technology and the rapid rise of online retailing, the market competition becomes increasingly fierce. Based on consumer utility function, this article established a two-stage dynamic pricing model and discussed pricing strategies under consumer behavior and market competition. Findings indicate that product quality difference and consumer valuation decreasing coefficient determine the order of the consumer purchase decisions. The firm who provides lower-quality products suffered more loss than the firm who provides high-quality products.

Research on the Influence of the Characteristics of Independent Director to the Quality of Internal Control Self-Assessment Report  [PDF]
Weiwei Huang
Modern Economy (ME) , 2015, DOI: 10.4236/me.2015.66064
Abstract: This article selects the empirical data from Shanghai A share, using multiple linear regression model to discuss the impact to the quality of the internal control self-assessment report from four aspects of the characteristic of the independent directors. The conclusions are that the number of independent directors, the independent directors’ proportion and the auditing professional background of independent directors are positively correlated with the quality of internal control self-assessment report, and the age of the independent directors, the independent directors’ reward and the location consistency of the independent directors and the company are negatively correlated with the quality of internal control self-assessment report. Finally, this paper gives four suggestions.
Research on Enterprise Internationalization Strategy Based on Path Dependence Theory: Literature Review and Future Prospect  [PDF]
Weiwei Yang
American Journal of Industrial and Business Management (AJIBM) , 2017, DOI: 10.4236/ajibm.2017.711087
Abstract: Although there are many kinds of literature on the internationalization of enterprises and strategic path dependence research were reviewed, there are no scholars on the path dependence theory perspective of the enterprise international strategy research specifically reviewed. In this paper, the literature review method is used to review the literature on the international strategic path of enterprises. First of all, the focus of combing the relevant literature involved in the concept, characteristics, the origin and development of the theory. Then, this paper introduces some scholars’ related discussions on the internationalization path dependence of enterprises. Finally, on the basis of these, the future direction of the research on the path dependence of the internationalization of enterprises is put forward from the aspects of cognitive perspective, dynamic capability theory and theoretical framework.
2-(4-Carboxypiperidinium-1-yl)pyridine-3-carboxylate
Ping Fan,Chunhua Ge,Mingjun Sun,Weiwei Li
Acta Crystallographica Section E , 2012, DOI: 10.1107/s1600536812005752
Abstract: The title compound, C12H14N2O4, crystallizes as a zwitterion. A negative charge is delocalized in the deprotonated carboxyl group attached to the pyridine ring. The piperidine N atom accepts a proton and the ring is transformed into a piperidinium cation. There is an intramolecular N—H...O hydrogen bond between the protonated NH and a carboxylate O atom. In the crystal, an O—H...O hydrogen bond between the carboxyl group and the carboxylate O atom of another molecule generates a helix along the b axis.
Design and Simulation of a Fused Silica Space Cell Culture and Observation Cavity with Microfluidic and Temperature Controlling
Shangchun Fan,Jinhao Sun,Weiwei Xing,Cheng Li,Dongxue Wang
Journal of Applied Mathematics , 2013, DOI: 10.1155/2013/378253
Abstract: We report a principle prototype of space animal cell perfusion culture and observation. Unlike previous work, our cell culture system cannot only realize microfluidic and temperature controlling, automatic observation, and recording but also meet an increasing cell culture at large scale operation and overcome shear force for animal cells. A key component in the system is ingenious structural fused silica cell culture cavity with the wedge-shaped connection. Finite volume method (FVM) is applied to calculate its multipoint flow field, pressure field, axial velocity, tangential velocity, and radial velocity. In order to provide appropriate flow rate, temperature, and shear force for space animal cell culture, a closed-loop microfluidic circuit and proportional, integrating, and differentiation (PID) algorithm are employed. This paper also illustrates system architecture and operating method of the principle prototype. The dynamic culture, autofocus observation, and recording of M763 cells are performed successfully within 72?h in the laboratory environment. This research can provide a reference for space flight mission that carries an apparatus with similar functions. 1. Introduction The increasing demand of recombinant therapeutic proteins, monoclonal antibodies, and vaccines produced by mammalian cells has stimulated the development of space cell culture technology, for which almost all space powers have a huge interest. In order to make an in-depth research of space cell culture characteristics, some space powers have developed various space cell culture devices [1–4]. Many of these have completed space flight mission that are shown in Table 1 and Figure 1. Such space cell culture apparatus not only provides appropriate temperature, adequate nutrition and oxygen, low concentration of toxic secretions, and reasonable mechanical property but also records details of cell proliferation [5]. However, space perfusion cultures require more efficient and advanced system, the most frequently reported based on microfluidic chip with kinds of sensors [6–10] and aerospace heat transfer [11]. Rotating wall bioreactor is widely used because the internal spin-filters are conducive to perfusion rates and reproductive rate at large-scale operation [12, 13]. In this case, the defects such as high energy consumption, noise, low space utilization, and shear force have been considered as limitation of culture duration and process performance. Table 1: Space cell culture instruments development at home and abroad. Figure 1: Successful applications of space cell culture
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