333 research outputs found

    Utilizing Internet Analysis Technology to Conduct Data Analysis of Student Attitude Survey

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    Language attitude is people’s understanding and evaluation of languages, which has an important effect on language learning. Based upon investigation into 605 Tibetan college students from 5 colleges in Tibet areas, and combined with network data, this paper mainly analyzes their attitude towards Tibetan, Chinese and English from four dimensions: recognizing, instrumental, integrative and transferring attitude. This paper also discusses the relationship between students’ language attitude and their gender and grade. This study utilizes internet analysis technology to analyze data obtained from a student attitude survey. The survey was conducted to examine the attitudes of students towards a particular educational program. The study includes a description of the survey instrument and the method used to collect data. The data collected was analyzed using various statistical techniques, including frequency analysis and correlation analysis. The findings reveal important insights into student attitudes towards the program and highlight areas of improvement for the program. The use of internet analysis technology proved to be an efficient and effective method of data analysis in this study. The study contributes to the growing body of knowledge on data analysis in educational research and provides useful information for educators and policymakers

    Capillary-column-based bioseparator/bioreactor with an optical/electrochemical detector for detection of microbial pathogens

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    The present invention is directed to satisfying the need to detect microbial contamination of food products. The described bioseparator/bioreactor coupled with an optical/electrochemical biosensor was able to specifically detect E. coli O157:H7 from 8.8 x 10^1 to 8.8 x 10^6 CFU/ml in 2.5 hours without any enrichment. Using this invention, concentrations of S. Typhimurium ranging from 8.6 x 10^2 to 8.6 x 10^6 CFU/ml in pure culture were detected in 2 hours without any enrichment. The invention may also be used for the detection of S. Seftenberg, which has the same sensitivity as S. Typhimurium. Other pathogens such as L. monocytogenes and S. Heidleberg did not interfere with the detection. The optimum inner diameter of the 25 cm long column for the detection of E. coli O157:H7 is 250 micro m. The detection limit for other microbial pathogens may be controlled by changing the length of capillary columns, using higher concentration of the labeled antibodies, altering the flow rate and concentration of the substrate, and increasing the reaction temperature to 37 degree C

    Improved Performance of LiFe0.25Mn0.75PO4 by using Graphene and Fluorine- Doped Carbon Coating

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    Lithium transition metal phosphatesusually need modification of morphology and electron conductivity for improving the electrochemical performance [1,2]. In this work, the electron conductivity of LiFe0.25Mn0.75PO4 is increased by adopting graphene and F-doped carbon.The reductive graphene oxide and F-doped carbon coating LiFe0.25Mn0.75PO4 (LFMP/C-F/rGO) is synthesized by a simple ball milling method

    Footprints of Axion-Like Particle in Pulsar Timing Array Data and JWST Observations

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    Very recently Pulsar Timing Array (PTA) collaborations have independently reported the evidence for a stochastic gravitational-wave background (SGWB), which can unveil the formation of primordial seeds of inhomogeneities in the early universe. With the SGWB parameters inferred from PTAs data, we can make a prediction of the Primordial Black Hole (PBH) clusters from the domain walls of axion-like particles (ALPs). These primordial seeds can naturally provide a solution to the early Active Galactic Nuclei (AGN) formation indicated by James Webb Space Telescope (JWST). Besides, the mass of ALP is also constrained, ma10151014m_a \sim 10^{-15}-10^{-14} eV, within the reach of upcoming cavity experiments.Comment: 5 pages, 3 figure

    Research On Evaluation Index System of China’s Inter-Provincial Electricity Market Operation

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    As China's electricity market develops rapidly in recent years, market evaluation turns out to be more necessary than before to make a comprehensive evaluation of market construction and operation, and ensure a fair and health electricity market. In this study, the international experience of market monitoring and assessment is firstly summarized. Then considering the feature of China's inter-provincial power market, the evaluation index system is proposed for the operation effectiveness of inter-provincial electricity market. At last, a case of comparing the short-term and long-term inter-provincial market modes is presented to validate the proposed market evaluation index system
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