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Search Results: 1 - 10 of 127101 matches for " Fenfang Li "
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A Study of English Reading Strategies Used by Senior Middle School Students
Fenfang Li
Asian Social Science , 2010, DOI: 10.5539/ass.v6n10p184
Abstract: For the past several decades, reading strategies have aroused many researchers’ interests, but the research has mainly focused on strategy use while ignoring the function of metacognitive awareness of reading strategies. This study, based on a questionnaire, investigated the students’ awareness of reading strategy use at the senior middle school level. The major findings are, first, that there is a moderate awareness of all the strategies; secondly, the students hold a preference for Problem Solving Reading Strategies, followed by Global and Support Reading Strategies; thirdly, females show higher use of reading strategies than males in each individual category, as well as in the combined sub-categories. Also, the females are more careful and considerate while the males are more adventurous and bolder. Finally, the readers’ metacognitive awareness of reading strategies is closely linked to their language proficiency. Based on the findings above, several suggestions can be made to help teachers improve their teaching and help the students improve their reading efficiency.
Relationship between EFL Learners’ Belief and Learning Strategy Use by English Majors in Vocational Colleges
Fenfang Li
Journal of Language Teaching and Research , 2010, DOI: 10.4304/jltr.1.6.858-866
Abstract: This study, based on two questionnaires, explored relationship between foreign language learning beliefs and the strategy use among English major sophomores of vocational colleges in Jiangxi. In addition, it attempted to find any relationship between the two variables. The results shows: (1) Overall mean of the belief is 3.44, which means majority of subjects agree with the statements or at least stay neutral. They hold strong opinion about the six belief categories, especially about the language learning and communication strategies.(2) The overall strategy use fall within the range of medium use (mean=2.89), which means the vocational students “sometimes” use the strategies. Compensation strategies are the most popular strategies with the vocational English majors, while memory strategies are least used. (3) Moderate correlation coefficient is detected between the language learning beliefs and frequency of strategy use (r=.476, p<.01).
Translation of Words with Cultural Image
Fenfang Li,Shiyang Ran,Tian Xia
Journal of Language Teaching and Research , 2010, DOI: 10.4304/jltr.1.5.694-700
Abstract: Cultural image is a kind of cultural symbol, which carries unique, wide, deep cultural connotations. The default and misplacement of cultural images caused by cultural differences always put translators in dilemma. The differences in cultural images between the source and target language frequently cause semantic default and contextual conflicts in the process of transference and present a hard nut for the translator to crack. Due to the close relationship between language and culture, unique cultural images are formed in the languages of different nations. In the process of translation, as a cross-language and cross-cultural activity, the cultural image of the original words should be expressed and the cultural meanings should be transmitted as appropriately and completely as possible. While in practical translation, translators always find it difficult to choose an almost equal word to replace the original one, thus the problems of misplacement, loss in the translation of words with cultural image come out, which cause difficulties and misunderstandings in the intercultural communication. In this paper it is to present the status quo of translating words with cultural image and illustrate their unique meaning in different cultures. Then it is to discuss some problems caused in translation activities. Finally it is to expound the upmost principle for translating cultural images: foreignizing translation. Based on foreignization, several suitably acceptable methods are introduced in this paper as well: to transplant the original images faithfully by means of image retention and notes and image addition in order to achieve the purpose of cross-cultural communication, which will make translation more suitable for the purpose of cultural intercommunication.
Comparative Pharmacokinetics of Two Injection Formulations of Tulathromycin after a Single Intramuscular Administration in Healthy Swine
Zhihui Hao,Yongda Zhao,Baohan Qu,Haoting Wu,Lihua Hao,Zhaopeng Ding,Fenfang Yang,Yan Li
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2012.4201.4204
Abstract: The objective of this study was to campare different pharmacokinetic parameters of a locally manufactured (Tulathromycin Injection, CONTINENT, China) and reference (Draxxin, Pfizer, USA) formulation of tulathromycin 2.5 mg injection after intramuscular administration of a single dose. Twelve pigs were randomly allocated to two treatment groups. Blood samples were collected by venipuncture of the jugular vein or anterior vena cava, plasma samples were analyzed by High-Performance Liquid Chromatography (HPLC) with tandem mass spectrometry detection (LC-MS/MS) using ESI. Mean puls or minus Standard Deviation (SD) of peak plasma Concentration (Cmax) Area Under the serum Concentration-time curve (AUC0-t), Area Under the serum Concentration-time curve (AUCinf), serum concentration half-life (t1/2) were 4.32±1.52 and 5.86±1.28 μg mL-1, 3.98±1.63 and 4.24±1.30 μgh mL-1, 4.04±1.67 and 4.65±2.01 μgh mL-1, 83.55±12.84 and 79.25±10.64 h for the locally manufactured (tested) and reference formulation, respectively. The 90% confidence intervals of the mean of the difference between log-transformed values for AUC0-360, AUC0-∞ and Cmax were within the bioequivalence accepted range of 80-125%. The results indicate that tulathromycin was rapidly absorbed, eliminated slowly and highly bioavailable following a single dose which make tulathromycin likely to be effective in swine.
Quantitative structure property relationships study on degradation of chlorophenols by US/Fe
超声波/零价铁(US/Fe)协同降解氯酚类化合物的QSPR研究

DAI Youzhi,ZHU Fei,LI Fenfang,YANG Dasen,YANG Xiangzheng,
戴友芝
,朱飞,李芬芳,杨大森,杨湘政

环境科学学报 , 2007,
Abstract: In the article, the combination of ultrasound and Fe is used as a means to degrade six kinds of chlorophenols. Degradation Rate constants were determined with the same experimental conditions. Molecule structure parameters were investigated with MOPAC2002 built in ChemOffice2005. By partial least regression (PSL), the correlation of the logarithm value of K and structure parameters were researched and quantitative structure property relationship (QSPR) model was developed credibly. Analytical results of PLS showed that Vp, Elumo, (Elumo-Ehomo)2 and Elumo-Ehomo are the main factors in degradation of chlorophenols by US/Fe. Based on the analytical results, it is concluded that the chlorophenols are not degraded by sonolysis in the cavitational bubble but by the adsorption on Fe's surface and the oxidation of ·OH.
Two-Dimensional Numerical Simulation of Flow Around Three-Stranded Rope Two-Dimensional Numerical Simulation of Flow Around Three-Stranded Rope
WANG Xinxin,WAN Rong,HUANG Liuyi,ZHAO Fenfang,SUN Peng
- , 2016,
Abstract: Three-stranded rope is widely used in fishing gear and mooring system. Results of numerical simulation are presented for flow around a three-stranded rope in uniform flow. The simulation was carried out to study the hydrodynamic characteristics of pressure and velocity fields of steady incompressible laminar and turbulent wakes behind a three-stranded rope. A three-cylinder configuration and single circular cylinder configuration are used to model the three-stranded rope in the two-dimensional simulation. The governing equations, Navier-Stokes equations, are solved by using two-dimensional finite volume method. The turbulence flow is simulated using Standard κ-ε model and Shear-Stress Transport κ-ω(SST) model. The drag of the three-cylinder model and single cylinder model is calculated for different Reynolds numbers by using control volume analysis method. The pressure coefficient is also calculated for the turbulent model and laminar model based on the control surface method. From the comparison of the drag coefficient and the pressure of the single cylinder and three-cylinder models, it is found that the drag coefficients of the three-cylinder model are generally 1.3–1.5 times those of the single circular cylinder for different Reynolds numbers. Comparing the numerical results with water tank test data, the results of the three-cylinder model are closer to the experiment results than the single cylinder model results
From Metal Thiobenzoates to Metal Sulfide Nanocrystals: An Experimental and Theoretical Investigation
Zhihua Zhang,Wen Pei Lim,Chiong Teck Wong,Hairuo Xu,Fenfang Yin,Wee Shong Chin
Nanomaterials , 2012, DOI: 10.3390/nano2020113
Abstract: A simple preparation of metal sulfide nanoparticles via the decomposition of thiobenzoate precursors at room temperature is presented and discussed. Long chain alkylamines were found to mediate the breakdown of metal thiobenzoates, such as those containing Ag, Cu, In and Cd, to produce uniform Ag 2S, Cu 2?xS, In 2S 3 and CdS nanoparticles respectively. The long chain amines are assumed to play dual roles as the nucleophilic reagent and the capping agent. It was found that sizes of the nanoparticles can be controlled by changing the type of amine used, as well as the molar ratio between amine and the precursor. We performed DFT calculations on a proposed mechanism involving an initial nucleophilic addition of amine molecule onto the thiocarboxylates. The proposed reaction was also confirmed through the analysis of by-products via infrared spectroscopy. On the basis of this understanding, we propose to manipulate the stability of the precursors by coordination with suitable stabilizing groups, such that the reaction kinetics can be modified to generate different nanostructures of interest.
The Physiological and Biochemical Evaluation of Tulathromycin Premix in Pigs
Zhihui Hao,Yongda Zhao,Haoting Wu,Lihua Hao,Zhaopeng Ding,Fenfang Yang,Baohan Qu
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2012.4161.4166
Abstract: The aim of the study was to investigated the influence of dietary inclusion of tulathromycin at 5 mg kg-1 die on haematological to provide an experiment support for the clinical use of this drug. Eighteen pigs were randomly allocated to three treatment groups. A further six pigs were left untreated as controls (group NTXL). Tulathromycin was administered twice by the oral route administrations of 5, 15, 25 mg kg-1 B.W. in three treatment groups on the 1st and the 4th day, respectively. Blood samples were taken from all animals on days 1, 17, 14 for serum chemical and hematology evaluation. Weight and temperature were measured from all animals at the same time. Comparisons of mean physical examination parameters between treatment and control groups over the 14 day study period revealed no significant differences (p>0.05). All pigs did not show any signs of discomfort after Premix. Hematology evaluation indicated that comparisons of RBC, WBC, HGB, HCT, MCV, MCH, MCHC and PLT between treatment and control groups also revealed no significant differences (p>0.05). AST, ALT, ALP, ALB, BUN were significantly higher in treated groups when compared with the control group (p<0.05) post-treatment. No significant differences as time goes on suggesting that a slight effect of injury on liver was caused by tulathromycin. The safety of tulathromycin Premix in target animal swine indicated that pigs were administered of 5-25 mg kg-1 B.W. via the oral route satisfied clinicians demands.
Effects of Trawl Selectivity and Genetic Parameters on Fish Body Length Under Long-Term Trawling Effects of Trawl Selectivity and Genetic Parameters on Fish Body Length Under Long-Term Trawling
YU Yang,SUN Peng,CUI He,SHENG Huaxiang,ZHAO Fenfang,TANG Yanli,CHEN Zelin
- , 2015,
Abstract: Long-term fishing pressure affects the biological characteristics of exploited fish stocks. The biological characteristics of hairtail(Trichiurus lepturus) in the East China Sea are unable to recover because of long-term trawling. Fishing induces evolutionary effects on the fish's biological characteristics. Evidence of these changes includes small size at age, a shift to earlier age structure, and early maturation. Natural and artificial selection usually affect the fish's life history. Selection can induce different chances of reproduction, and individual fish can give a different genetic contribution to the next generation. In this study, analysis of time-dependent probability of significance and test of sensitivity were used to explore the effects of fish exploitation rate, mesh size, and heritability with long-term trawling. Results showed that fishing parameters were important drivers to exploited fish population. However, genetic traits altered by fishing were slow, and the changes in biological characteristics were weaker than those caused by fishing selection. Exploitation rate and mesh size exhibited similar evolutionary trend tendency under long-term fishing. The time-dependent probability of significance trend showed a gradual growth and tended to be stable. Therefore, the direction of fishing-induced evolution and successful management of fish species require considerable attention to contribute to sustainable fisheries in China
A Comparative Study on Hydrodynamic Performance of Double Deflector Rectangular Cambered Otter Board A Comparative Study on Hydrodynamic Performance of Double Deflector Rectangular Cambered Otter Board
XU Qingchang,FENG Chunlei,HUANG Liuyi,XU Jiqiang,WANG Lei,ZHANG Xun,LIANG Zhenlin,TANG Yanli,ZHAO Fenfang,WANG Xinxin
- , 2018,
Abstract: In the present work,the hydrodynamic performance of the double deflector rectangular cambered otter board was studied using wind tunnel experiment,flume tank experiment and numerical simulation.Results showed that the otter board had a good hydrodynamic performance with the maximum lift-to-drag ratio(K_(MAX) = 3.70).The flow separation occurred when the angle of attack(AOA) was at 45?,which revealed that the double deflector structure of the otter board can delay the flow separation.Numerical simulation results showed a good agreement with experiment ones,and could predict the critical AOA,which showed that it can be used to study the hydrodynamic performance of the otter board with the advantage of flow visualization.However,the drag coefficient in flume tank was much higher than that in wind tunnel,which resulted in a lower lift-to-drag ratio.These may be due to different fluid media between flume tank and wind tunnel,which result in the big difference of the vortexes around the otter board.Given the otter boards are operated in water,it was suggested to apply both flume tank experiment and numerical simulation to study the hydrodynamic performance of otter board
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