1,203 research outputs found

    Chinese Studentsā€™ Ambivalent Perceptions of Grammar Correction in L2 Writing

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    The efficacy of Grammar Correction (GC) in second language (L2) writing classes has been the subject of much controversy and the field seems to take Ferrisā€™ (1999) generalization that students believe in GC and want to receive it for granted. To test Ferrisā€™ generalization, this study examines Chinese studentsā€™ perceptions of GC in their English writing. The results of a questionnaire administered to six groups of three proficiency levels of university students majoring in or not in English show ambivalent perceptions towards GC. On the one hand, all learners believe GC has obvious effects and can improve their accuracy in L2 writing. On the other hand, they all agree that GC is not enough for improving learnersā€™ writing ability and that the time spent on GC should be allocated on training other writing abilities. All groups of participants gave a negative to uncertain answer to GC, though different perception patterns figure in whether or not majoring in English: English-major groupsā€™ mean expectation scores of GC increase while those of non-English-major groups decrease in keeping with their English levels. These results provide strong evidence for Truscottā€™s (1996) view that GC should be abandoned. We believe that the different perceptions of GC shown by English and non-English major students stem from the fact that the former receives a more systematic grammar instruction than the latter. The ambivalent perceptions of GC originate in the fact that grammar accuracy occupies an important proportion in various writing evaluation systems

    A Finite Element Method for the Multiterm Time-Space Riesz Fractional Advection-Diffusion Equations in Finite Domain

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    We present an effective finite element method (FEM) for the multiterm time-space Riesz fractional advection-diffusion equations (MT-TS-RFADEs). We obtain the weak formulation of MT-TS-RFADEs and prove the existence and uniqueness of weak solution by the Lax-Milgram theorem. For multiterm time discretization, we use the Diethelm fractional backward finite difference method based on quadrature. For spatial discretization, we show the details of an FEM for such MT-TS-RFADEs. Then, stability and convergence of such numerical method are proved, and some numerical examples are given to match well with the main conclusions

    Symphony No. 1

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    Abstract Symphony No.1, created on December 10, 2017. It was finally completed on February 1, 2018. This is a music representation of the environment using music. The composer of this symphony believes that at present it is a world of diversity, many different environmental factors and many different music senses and imagination are different. We canā€™t just stick to traditional music research and modern music research. The author of this music thinks that should complement each other and merge them totally different music materials, representing the three different styles of music materials, representing the three different styles of modern, national and classical. This work is inspired by the winter, and it is divided into three movements. Each movement describes the feeling of the environment, things and the abstract feeling of a certain time period. About Symphony No.1, the melody uses the national color factor. The harmony is divided into dissonance intervals and consonants intervals. According to the study of modern music and classical music, the composer also makes a static comparison in the rhythm in his music work. The first movement, the theme and motivation of the first movement in this symphony is paramount. The beginning of the music is fluency by the flute. First of all, on the design and layout of the motif flute part, I divided it into time values and voice. Subsequently, the other parts of the woodwind began to gradually motivate the theme. With regard to strings, in the first half, in the light background, the overall feeling of music is like the kind of scene before dawn. A piece of land, a mountain, they are so quiet and peace. The second movement, the strong sound started the movement, and as a grouping arrangement, the flute and clarinet were a group, the oboe and the bassoon were a group. This design is to highlight their tone, but also to make a contrast between the tone. In this movement, brass appears to strengthen the overall momentum. It\u27s like a powerful force moving forward. In addition, strings have also changed a great deal in strength and tempo. Through the overall cooperation, this movement expresses the struggling picture of people in the cold air and is a strong manifestation of the feeling of the soul. The third movement, there was a whole new theme motivation in the last movement. The overall feeling is very flexible, beating big. It is also from the cautious, worried to the release and show the feeling of dance. Importantly, percussion plays the single most important role in this movement. Therefore, the weather is very cold, but people\u27s heart is very hot. That cheerful mood defeated the cold

    Enhanced independent pole control of hybrid MMC-HVDC system

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    This paper presents an enhanced independent pole control scheme for hybrid modular multilevel converter (MMC) based on full bridge sub-module (FBSM) and half bridge sub-module (HBSM). A detailed analysis of power distribution between upper and lower arms under asymmetrical DC pole voltages is presented. It is found that the fundamental AC currents in the upper and lower arms are asymmetrical. To enable operation under asymmetrical DC pole voltages, an enhanced independent pole control scheme is proposed. The controller is composed of two DC control loops, two AC control loops and circulating current suppression control based on current injection. Six modulation indices are presented to independently control the upper and lower arms. With this controller, the DC voltage operating region is significantly extended. To ride through pole to ground DC fault without bringing DC bias at the neutral point of interface transformer, a pole to ground DC fault ride through strategy is proposed. Feasibility and effectiveness of the proposed control scheme are verified by simulation results using PSCAD/EMTDC

    The Applications of Green Building Rating System in Property Management

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    In the time of Low-carbon economyļ¼Œthe thought of sustainable development has influenced every aspects of life, and the ideas of green service and environmental management has become increasingly popular in property management .Green property management is now a trend, yet necessarily the only way to meet the ownerā€™s needs. Responding to the current call of building energy efficiency, it is inevitable in the development of property management to introduce the idea of green management, advocate green service management, and apply the green building rating system to property management, which is one distinguishing feature of modern property services.Key words: Green Building Rating System; Green Property Management; Application

    Automated Scoring of Clinical Patient Notes using Advanced NLP and Pseudo Labeling

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    Clinical patient notes are critical for documenting patient interactions, diagnoses, and treatment plans in medical practice. Ensuring accurate evaluation of these notes is essential for medical education and certification. However, manual evaluation is complex and time-consuming, often resulting in variability and resource-intensive assessments. To tackle these challenges, this research introduces an approach leveraging state-of-the-art Natural Language Processing (NLP) techniques, specifically Masked Language Modeling (MLM) pretraining, and pseudo labeling. Our methodology enhances efficiency and effectiveness, significantly reducing training time without compromising performance. Experimental results showcase improved model performance, indicating a potential transformation in clinical note assessment

    Reaching the last mile: best practices in leveraging the power of ICTs to communicate climate services to farmers at scale

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    This report reviews key ICTs for Development (ICT4D) Programs, Innovations and Information Exchange Platforms which are experimented within South Asia to explore the use and scale-ability of these innovative approaches to other parts of Africa and the developing world. Learning from the pioneering experiences of pilot projects across India and Africa in ICT development, we assess the potential ICTs offer to not only communicate climate information and related advisory services but also to build capacity and increase the resilience of rural smallholders. It is our hope that such South-South learning can pave the way for improved cross-regional experience sharing to tackle common challenges in reaching ā€˜the last mileā€™ with salient rural extension services, including climate information services
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