17 research outputs found

    The State Of The Art Of MIS Education In China

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    When comparing the present situations of the Management Information Systems (MIS) undergraduate program in Shanghai Jiao Tong University with several representative domestic MIS programs in other universities, the authors discover there exist three different types of training objectives in MIS education in China. We also conclude that the MIS education in the top 4 MIS undergraduate programs in the last 3 years presents similar features. Moreover, by scrutinizing the graduate employment status, several present problems in the MIS education in China are revealed, and solutions are proposed

    The Efficiency ,Technology and the Independence Study of the Database outsourcing Security Service

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    Clients who adopt data outsourcing services tend to store their data in the media provided by the services providers. While through data analysis, author found that there’re no reliable promises in data securities as the services providers could not assure that the outsourced information won’t be disclosed by some third parties. Such as natural disasters 、some emergencies or crimes committed by in-house staffs and so on. Which means that if the information is stored in clear text, the risk of that the data might be disclosed or interpolated will always exists. Therefore, author point out that only when data stored in the cipher text form and the process of encryption/ decryption is managed by the users could guarantee the data real security and privacy. So it comes to the study of “efficiency, technology and the independence” in database outsourcing services when the users have to encryption and decryption by themselves. Based on the research and analysis of the problem, this paper tries to driving the solution of implementation strategy and methods

    Functional Analysis of the Melanin-Associated Gene CmMR1 in Coniothyrium minitans

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    Coniothyrium minitans is a sclerotial parasite, which has been investigated for commercial control of crop diseases caused by Sclerotinia sclerotiorum. Previously, we obtained a T-DNA insertional mutant, ZS-1TN24363, which did not produce melanin during conidiation. To understand the function of melanin in C. minitans, we cloned the gene that was disrupted by the T-DNA insertion, and found that this gene, called CmMR1, encoded a putative protein of 1,011 amino acids, which is a homolog of the transcription factor MR. Full-length CmMR1 contains 3,167 bp, with three exons and two introns. To confirm that the disrupted gene is responsible for the melanin-deficiency of the mutant, CmMR1 was disrupted and three targeted knockout mutants were obtained. Biological assays showed that the phenotype of the targeted knockout mutants was similar to that of the T-DNA insertional mutant. Furthermore, gene complementation confirmed that CmMR1 is responsible for the mutant phenotype. CmMR1 disruption did not affect hyphal growth, conidiation, and parasitization of C. minitans, however, the ROS accumulation increased and tolerance to UV light decreased significantly in the mutants. Our result may enhance the understanding of melanin in the ecology of C. minitans on molecular level

    Instrumental and Sensory Analysis of the Properties of Traditional Chinese Fried Fritters

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    The quality of traditional Chinese fried fritters is typically measured using human sensory evaluation techniques and physicochemical indices, the process of which is laborious and time-consuming. This study aimed to investigate the relationship between instrumental parameters, sensory criteria, and physicochemical indices. Significant correlations were found using principle component analysis. Volume, fat, texture, palatability, and instrumental parameters (hardness, fracturability, springiness, and gumminess) were found to be the main factors influencing the quality of Chinese fried fritters by principal component analysis (PCA) and instrumental methods, which were satisfactory replacement for human evaluation in correlation testing

    Facile Preparation of Well-Dispersed CeO2-ZnO Composite Hollow Microspheres with Enhanced Catalytic Activity for CO Oxidation

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    National Basic Research Program of China [2012CB933103]; National Outstanding Youth Science Foundation of China [50825101]; National Natural Science Foundation of China [51171158, 51371154, 51301145]; Fundamental Research Funds for the Central Universities of China [201212G001]In this article, well-dispersed CeO2-ZnO composite hollow microspheres have been fabricated through a simple chemical reaction followed by annealing treatment. Amorphous zinc-cerium citrate hollow microspheres were first synthesized by dispersing zinc citrate hollow microspheres into cerium nitrate solution and then aging at room temperature for 1 h. By calcining the as-produced zinc cerium citrate hollow microspheres at 500 degrees C for 2 h, CeO2-ZnO composite hollow microspheres with homogeneous composition distribution could be harvested for the first time. The resulting CeO2-ZnO composite hollow microspheres exhibit enhanced activity for CO oxidation compared with CeO2 and ZnO, which is due to well-dispersed small CeO2 particles on the surface of ZnO hollow microspheres and strong interaction between CeO2 and ZnO. Moreover, when Au nanoparticles are deposited on the surface of the CeO2-ZnO composite hollow microspheres, the full CO conversion temperature of the as-produced 1.0 wt % Au CeO2-ZnO composites reduces from 300 to 60 C in comparison with CeO2-ZnO composites. The significantly improved catalytic activity may be ascribed to the strong synergistic interplay between Au nanoparticles and CeO2-ZnO composites

    Carbon Dots and Fluorescein: The Ideal FRET Pair for the Fabrication of a Precise and Fully Reversible Ammonia Sensor

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    Monitoring of ammonia in the human breath is of paramount importance to monitor diseases link to liver and kidney mulfunctioning. The present paper describes a solid-state optical ammonia sensor based on Förster resonance energy transfer (FRET) between narrowly dispersed blue-emitting carbon nanodots (CNDs) as FRET donor and fluorescein as FRET acceptor. The fluorophores were physically entrapped in a close to superhydrophobic sol-gel matrix, in turn deposited on a PVDF-HFP electrospun fiber membrane. The sensor shows a linear calibration with a remarkably low limit of detection, i.e., 110 ppb, and adequate reproducibility up to six N2/NH3 cycles
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