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Search Results: 1 - 10 of 3057 matches for " Liwei Hsu "
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A Qualitative Analysis on the Occurrence of Learned Helplessness among EFL Students
Liwei Hsu
Journal of Educational and Developmental Psychology , 2011, DOI: 10.5539/jedp.v1n1p162
Abstract: This study seeks to provide some comprehensive information on EFL students’ learned helplessness when learning English, by exploring the causal relationship between three variables: failure to learn English, personality traits and intrinsic/extrinsic motivation. Eighteen students and two English teachers participated in this study with a gatekeeper’s consent. This was done mainly through focus group interviews. The data was elicited from the NEO-FI Personality Trait Inventory with a cross analysis done on the in-depth interviews. The findings indicate that students with different personality traits do regard their failure to learn English in different ways. This in turn, leads to various influences that decrease their intrinsic motivation. The intrinsic motivation for all of the participants is inevitably affected by failure, but learners with a neuroticism trait are the most sensitive to failure. Therefore, these are the students who are most susceptible to experiencing learned helplessness when learning English, while students with traits of openness, extraversion and agreeableness can reactivate their extrinsic motivation when appealed to by external incentives. However, this study also discovered that there was a mismatch between a teacher’s judgment on student amotivation and the student’s self-assessment of his/her motivation to learn English.
The Many-on-One Stochastic Duel Model with Information-Sharing  [PDF]
Jianjun Li, Liwei Liu
Applied Mathematics (AM) , 2012, DOI: 10.4236/am.2012.36097
Abstract: In this paper we extend the one-on-one stochastic duel model with searching to the many-on-one case based on information-sharing. We have derived the probability density function of the time to kill the target in many-on-one model. It is illustrated by an example in which the firing time and the searching time are of different exponential distributions.
Hemodynamic effects of partial splenic artery embolization in patients with liver cirrhosis and portal hypertension
DUAN Liwei
Journal of Clinical Hepatology , 2013,
Abstract: ObjectiveTo investigate the clinical efficacy and therapeutic value of partial splenic artery embolization (PSE) for treating portal hypertension in patients with liver cirrhosis. MethodsTwenty-three patients diagnosed with liver cirrhosis of different etiology and with portal hypertension were treated with PSE. Diameter and blood flow velocity of the portal vein (PV) and splenic vein (SV) were measured by color Doppler ultrasound before PSE (baseline) and after PSE (postoperative week 1 and months 1, 3, and 6). Statistical significance of differences was assessed by paired t-test. ResultsBoth the PV and SV blood flow velocities were significantly enhanced after PSE (all postoperative times vs. baseline, P<0.05). SV diameter was significantly reduced after PSE (all postoperative times vs. baseline, P<005). PV diameter, however, was not significantly reduced at six months after PSE (vs. baseline, P≥0.05). ConclusionPSE can reduce portal vein pressure in patients with liver cirrhosis.
Woman Subculture Development Seen from Woman Language
Liwei Zhu
Journal of Language Teaching and Research , 2011, DOI: 10.4304/jltr.2.3.613-617
Abstract: The woman subculture study is widely conducted through several decades since the beginning of the second wave feminist movement in 1960s. This paper intends to explain the woman subculture development in view of the woman language. First, it gives the definition of subculture. Second, it explains why woman culture is considered as a subculture. Third, with reference to sociolinguistic studies of woman language, it offers further clarification of some important feminist theories like gendered knowledge, standpoint theory and muted group theory. Also some key conceptions which are closely tied to woman subculture are expounded through the analysis of woman language. Last, the paper explains how woman subculture is transmitted through feminist theories and literary criticism works and how it is divided into three phases.
The $L^p$ boundedness of the Bergman projection for a class of bounded Hartogs domains
Liwei Chen
Mathematics , 2013,
Abstract: We generalize the Hartogs triangle to a class of bounded Hartogs domains, and we prove that the corresponding Bergman projections are bounded on $L^p$ if and only if $p$ is in the range $(\frac{2n}{n+1},\frac{2n}{n-1})$.
Weighted Sobolev regularity of the Bergman projection on the Hartogs triangle
Liwei Chen
Mathematics , 2015,
Abstract: We prove a weighted Sobolev estimate of the Bergman projection on the Hartogs triangle, where the weight is some power of the distance to the singularity at the boundary. This method also applies to the $n$-dimensional generalization of the Hartogs triangle.
Weighted Bergman Projection on the Hartogs Triangle
Liwei Chen
Mathematics , 2014,
Abstract: We prove the $L^p$ regularity of the weighted Bergman projection on the Hartogs triangle, where the weights are powers of the distance to the singularity at the boundary. The restricted range of $p$ is proved to be sharp. By using a two-weight inequality on the upper half plane with Muckenhoupt weights, we can consider a slightly wider class of weights.
The Research for Exploring Product Design Characteristics by SEM via Correlated Innovation and Design Strategy  [PDF]
Yen Hsu
American Journal of Industrial and Business Management (AJIBM) , 2013, DOI: 10.4236/ajibm.2013.31002

Managers at NPD departments of Taiwan consumer electronic industry were interviewed to explore the effects innovation strategy (IS) has on design strategy (DS) and finally on product design characteristics (DC). The fitness of theoretical models and the observed data was examined. A questionnaire survey was conducted. 1300 enterprises in Taiwanconsumer electronic industry were randomly selected as the survey pool. At last, 370 effective questionnaires were collected. Their responses on the questionnaires were analyzed to test the fitness of the model with structural equation modeling analysis (SEM). A proper fitness was found for the correlation theoretical model of IS, DS, DC, and the observed data. In enterprises, IS will influence product DC, and at the same time, IS will influence product DC through DS. Among these three variables, DS serves as an independent variable and intervene variable to DC.

The Dynamic Impacts between International Trade and Silver-Copper Ratio in China 1825-1886  [PDF]
Ching Hsu
Modern Economy (ME) , 2018, DOI: 10.4236/me.2018.94041
Abstract: This study provides an alternative approach to analyze the linkages between the international trade and the domestic metal exchange rate in China during the 19th century. I employ a dataset spanned from 1825 to 1886 to examine the dynamic intra- and inter-relationships between the domestic silver-copper ratios and the international trade in vector error correction methods. I obtain that a long-run relationship between the exports of tea and silk, the imports of opium, and the domestic silver-copper ratios existed in China. The silver-copper ratios Granger causes the imported opium, silver inflow and exported tea from China, but the international trade does not granger cause the silver-copper ratios. The impacts of impulse response function and variance decomposition are analyzed. The results suggest a more strong connection from the international trade and the domestic metal exchange rate than existent explorations.
Text Classification Using Support Vector Machine with Mixture of Kernel  [PDF]
Liwei Wei, Bo Wei, Bin Wang
Journal of Software Engineering and Applications (JSEA) , 2012, DOI: 10.4236/jsea.2012.512B012
Abstract: Recent studies have revealed that emerging modern machine learning techniques are advantageous to statistical models for text classification, such as SVM. In this study, we discuss the applications of the support vector machine with mixture of kernel (SVM-MK) to design a text classification system. Differing from the standard SVM, the SVM-MK uses the 1-norm based object function and adopts the convex combinations of single feature basic kernels. Only a linear programming problem needs to be resolved and it greatly reduces the computational costs. More important, it is a transparent model and the optimal feature subset can be obtained automatically. A real Chinese corpus from FudanUniversityis used to demonstrate the good performance of the SVM- MK.
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