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Jianling Xie,Tianlan Wei,Yan Zhan,Yan Zeng,Xiang Huang,Xia Liu,Katarzyna Gallo 아시아영어교육학회 2021 The Journal of Asia TEFL Vol.18 No.4
Grounded in social cognitive theory and expectancy-value theory, the current study aimed to present a demotivation scale — Learner Perceptions of Demotivators Scale (LPDS) — designed specifically for use in L2 research and tested empirically to provide evidence of its construct, validity, and reliability. Study 1 sample consisted of 295 Chinese college English learners. An exploratory factor analysis offered preliminary support for a factor structure comprising three dimensions: negative teacher behavior, loss of task value, and low expectancy for success. Study 2 sample consisted of another 320 Chinese college English learners. The proposed factor structure was further corroborated through confirmatory factor analysis, and support for its validity was provided by means of correlating the three dimensions with academic performance and self-efficacy measures. Specifically, all the correlations were negative except for the positive association between academic performance and negative teacher behavior. Further, whereas the model fit confirmed a well-fitting second-order model, one low first-order loading (negative teacher behavior) does not seem to support a second-order factor model. Therefore, the three dimensions should be regarded as separate to best capture the nuances of different demotivators. By establishing a nomological network (demotivation, academic performance, and self-efficacy), the current study illuminates selected aspects of ESL pedagogy.
Topology Optimization of Steel Structure for Waste Incineration Steam Generator Based on DE and PSO
Jianling Chen,Yu-Hang Wang,Xu Zhan 한국강구조학회 2021 International Journal of Steel Structures Vol.21 No.4
The paper presents a topology optimization of steel structure about a waste incinerator steam generator to get economical structural layout. Firstly, the load function is got by analyzing the load distribution of a top girder about a certain type of waste incinerator steam generator. According to the theory of structural mechanics, the axial load function of steel frame is proposed. Secondly, the reasonable section class for members are selected and the functional relationship in the steel amount for steel frame with several variables is established. But it is diffi cult to solve them by ordinary analytic method due to these variables are interrelated. Therefore, intelligent bionics algorithm such as DE-diff erential evolution algorithm and PSO-particle swarm optimization are employed, the two algorithms are compared in the experiment. The simulation results show that the intelligent bionic algorithm can eff ectively deal with the optimization problems of steel structure.
Jianling Wang,Robin Qiu 보안공학연구지원센터 2015 International Journal of u- and e- Service, Scienc Vol.8 No.8
The Chinese automotive industry is the largest in the world. Although after-sales services are known to be associated with profitability, it has not obtained its rightful prominence in the Chinese industry. To investigate how the quality of leader-member exchange can influence after-sales services in the Chinese automobile industry, we collected data from individual employees and customers and analyzed it using grey theory model. Based on the results, we proposed the industry to pay more attentions to tangible after-sales service. While previous studies tended to adopt an either customer or employee perspective, our research contributes to the literature by offering a more comprehensive perspective from both the standpoints of the organization and consumers, and our grey theory analytic approach offers a viable option for researchers who are interested in reducing biases in data due to the data aggregation process.
Yakun Zhang,Jianling Li,Feiyu Kang,Xindong Wang,Feng Ye,Jun Yang 대한화학회 2012 Bulletin of the Korean Chemical Society Vol.33 No.6
The polymer of (2,2-dimethyl-1,3-propanediaminebis(salicylideneaminato))-nickel(II), Ni(saldMp), was deposited on multi-walled carbon nanotubes (MWCNTs) substrate by the route of potential linear sweep. The nano structures of poly[Ni(saldMp)] have been obtained by adjusting the monomer concentration of 0.1, 0.2, 0.5, 1.0 and 1.5 mmol L−1. The poly[Ni(saldMp)] prepared in acetonitrile solution with monomer concentration of 1.0 mmol L−1 shows the fastest growth rate. The effects of potential window on charge-discharge efficiency and electrodeposition scan number on capacitance performance were discussed. Poly[Ni(saldMp)] prepared with less electrodeposition scans exhibits higher capacitance, but this goes against the improvement of the whole electrode capacitance. Sample with 8 deposition scans is the best compromise with the geometric specific capacitance 3.53 times as high as that of pure MWCNTs, and 1.24 times for the gravimetric specific capacitance under the test potential window 0.0-1.0 V.
Zhang, Yakun,Li, Jianling,Kang, Feiyu,Wang, Xindong,Ye, Feng,Yang, Jun Korean Chemical Society 2012 Bulletin of the Korean Chemical Society Vol.33 No.6
The polymer of (2,2-dimethyl-1,3-propanediaminebis(salicylideneaminato))-nickel(II), Ni(saldMp), was deposited on multi-walled carbon nanotubes (MWCNTs) substrate by the route of potential linear sweep. The nano structures of poly[Ni(saldMp)] have been obtained by adjusting the monomer concentration of 0.1, 0.2, 0.5, 1.0 and 1.5 mmol $L^{-1}$. The poly[Ni(saldMp)] prepared in acetonitrile solution with monomer concentration of 1.0 mmol $L^{-1}$ shows the fastest growth rate. The effects of potential window on charge-discharge efficiency and electrodeposition scan number on capacitance performance were discussed. Poly[Ni(saldMp)] prepared with less electrodeposition scans exhibits higher capacitance, but this goes against the improvement of the whole electrode capacitance. Sample with 8 deposition scans is the best compromise with the geometric specific capacitance 3.53 times as high as that of pure MWCNTs, and 1.24 times for the gravimetric specific capacitance under the test potential window 0.0-1.0 V.
Xie Zhenlian,Jiao Jianling,Liu Huimin 한국경영교육학회 2012 한국경영교육학회 학술발표대회논문집 Vol.2012 No.6
The paper uses economic value added (EVA) as a tool to analyze whether foreign-capital merger and acquisition (M&A) can effectively improve the performance of listed companies in China and the impact degree of the type of foreign-capital M&A on its performance, which will provide investment decision support for a listed company before its acquisition in order to achieve the rational use of foreign capital to integrate the resources. Using the modified EVA system, the paper compares vertically and analyzes the performance of M&A listed companies by foreign capital during 2003-2006 according to one year before, the year, one year after, and two years after the foreign-capital M&A, and examines the performance before and after M&A of the listed companies of horizontal, vertical and mixed M&A to verify whether foreign-capital M&A can bring value creation for listed companies in China. The results show that all the sample companies'average EVA is increased year by year after M&A from one year before to two years after the M&A. Foreign-capital M&A activities helps to improve the performance of the listed companies, and it creates value for the company; Different types of M&A results in different M&A performance, seeing from the average EVA, horizontal M&A companies'performance is increased year by year in the three years from the year before to the year after M&A, which demonstrates horizontal M&A can promote the company's development by scale economy effect in a short of time and create M&A value. The performance of vertical M&A and mixed M&A companies are all first decreased then increased,"@which shows that performanceproducing needs a process for both the vertical M&A focusing on the transaction costs reduce and the mixed M&A designed to achieve diversification operations of the company, in this process, the company's performance may even fall down temporarily. Both vertical M&A and mixed M&A have certain of risk, the successfully integration after M&A is the key to the expected effects. Through internal market transactions, vertical M&A can expedite supply and marketing channels, reduce the uncertainty of risk and cost, obtain the purpose of enhancing the stability of company development; while through diversification operations, mixed M&A can realize industry transformation of the company to foster new earnings point, thus disperse risk, and improve corporate performance.
Infrared Semiconducting Transition-Metal Dichalcogenide Lasing with a Silicon Nanocavity
Hongji Li,Hanlin Fang,Jianling Xiao,Juntao Li,Yue Wang 한국물리학회 2018 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.73 No.3
The remaining challenge for silicon photonics is creating a light-emitter on chip. Recently, a special group of two-dimensional materials, semiconducting transition-metal dichalcogenides, have been developed. These materials demonstrate unique electronic properties and excellent optoelectronic performance, opening up new possibilities to finally overcome this challenge. In this letter, we report a novel nano-scale silicon laser source, which was achieved by combining a far-field optimized silicon photonic crystal cavity and a two-dimensional gain material, tri-layer molybdenum ditelluride. When an optical continuous-wave pump was employed, the maximum lasing output power obtained was at a wavelength of 1080 nm. Such output power shows that this novel source has great potential for use in on-chip optical communication.