• Title/Summary/Keyword: mts

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Molecular Cloning and Characterization of Maltooligosyltrehalose Synthase Gene from Nostoc flagelliforme

  • Wu, Shuangxiu;Shen, Rongrong;Zhang, Xiu;Wang, Quanxi
    • Journal of Microbiology and Biotechnology
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    • v.20 no.3
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    • pp.579-586
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    • 2010
  • A genomic DNA fragment encoding a putative maltooligosyltrehalose synthase (NfMTS) for trehalose biosynthesis was cloned by the degenerate primer-PCR from cyanobacterium Nostoc flagelliforme. The ORF of NfMTS was 2,799 bp in length and encoded 933 amino acid residues constituting a 106.6 kDa protein. The deduced amino acid sequence of NfMTS contained 4 regions highly conserved for MTSs. By expression of NfMTS in E. coli, it was demonstrated that the recombinant protein catalyzed the conversion of maltohexaose to maltooligosyl trehalose. The $K_m$ of the recombinant enzyme for maltohexaose was 1.87 mM and the optimal temperature and pH of the recombinant enzyme was at $50^{\circ}C$ and 7.0, respectively. The expression of MTS of N. flagelliforme was upregulated, and both trehalose and sucrose contents increased significantly in N. flagelliforme during drought stress. However, trehalose accumulated in small quantities (about 0.36 mg/g DW), whereas sucrose accumulated in high quantities (about 0.90 mg/g DW), indicating both trehalose and sucrose were involved in dehydration stress response in N. flagelliforme and sucrose might act as a chemical chaperone rather than trehalose did during dehydration stress.

Reliability and Validity of Patient Self-reported Daily Questionnaire on Oral Mucositis in Acute Leukemic Patients under Chemotherapy (화학요법을 받는 급성백혈병 환자 자가보고형 구강점막염 사정도구의 신뢰도와 타당도 분석)

  • Choi, So-Eun;Kim, Hee-Seung
    • Journal of Korean Biological Nursing Science
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    • v.12 no.3
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    • pp.148-156
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    • 2010
  • Purpose: Oral mucositis (OM) is a serious consequence of chemotherapy that cancer patients must undergo. The objectives of this study were to find out reliability and validity of patients self-reported daily questionnaires on OM, and the impact OM makes on daily functions. Method: To test the reliability of oral mucositis daily questionnaire (OMDQ), internal consistency of the instrument (Cronbach's ${\alpha}$ and correlation between items) and test-retest reliability were analyzed. Criterion validity and discriminative validity were evaluated using WHO, oral assessment guide, and Nicolatou assessment tool. Forty-eight acute leukemic patients under chemotherapy were enrolled in this study. Result: The Cronbach's ${\alpha}$ coefficient indicated sufficient internal consistency. Correlations of Mouth and throat soreness (MTS) and MTSActivity Limitations (MTS-AL) were statistically significant. MTS and MTS-AL scores on consecutive days were highly correlated (days13,14=.84-.96; test-retest reliability). OMDQ scale had high criterion validity and discriminative validity. Patients with more severe WHO OM grades had higher MTS mean scores. Conclusion: Oral mucositis in acute leukemic patients under going chemotherapy can be easily quantified by patient self-administered OMDQ with reliability and validity.

Chemical Vapor Deposition of Silicon Carbide by the Pyrolysis of Methylchlorosilanes (메틸클로로실란류의 열분해를 이용한 탄화규소의 화학증착)

  • 최병진;박동원;조미자;김대룡
    • Journal of the Korean Ceramic Society
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    • v.32 no.4
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    • pp.489-497
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    • 1995
  • The DDS((CH3)2SiCl2)+H2 gas mixture, where C atoms exist in excess in the molecules, was used for chemical vapor deposition of SiC in order to prevent codeposition of free Si in MTS(Ch3SiCl3)+H2 system. The deposition rate was more rapid than MTS, however differ from that of MTS, it decreased after shwoing a maximum at 140$0^{\circ}C$. The stoichiometry was highly improved by using the DDS as a precursor, although there exist a little pyrolytic C at 150$0^{\circ}C$. The preferred orientation was (220) in MTS, however, it changed to (111) in DDS. The microstructure of the layer deposited at lower temperature were dense, however it grew coarse with the increase in the temperature.

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Easy Keypad - Soft Keyboard for Login Information Input in Smart Devices (쉬운 키패드 - 스마트 기기에서 사용하는 로그인 정보 입력만을 위한 소프트키보드)

  • Koh, Hyung Dae
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.10 no.2
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    • pp.107-120
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    • 2014
  • In this paper, we suggest a soft keyboard, called easy keypad, that we use only for login information input in smart devices. Especially, as easy keypad is applied to MTS(Mobile Trading System) we suggest easy keypad in MTS. Easy keypad UI in MTS represents 20 letters and users input login information by using 20 letters. We suggest protocol which decides letters represented in easy keypad UI, which is code for users to input login information by using 20 letters. We analyze easy keypad's safe degree for soft keyboard security threat, especially when it comes to point hacking, we suggest comparison among original soft keyboard's safe degree. Also we suggest mathematical fomula for measuring soft keyboard's convenience and then we analyze the result of soft keyboard's convenience by the presented mathematical formula.

Mechanism, Function and Regulation of Microtubule-Dependent Microtubule Amplification in Mitosis

  • Zhu, Hui;Fang, Kayleen;Fang, Guowei
    • Molecules and Cells
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    • v.27 no.1
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    • pp.1-3
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    • 2009
  • Mitotic spindle mediates the segregation of chromosomes in the cell cycle and the proper function of the spindle is crucial to the high fidelity of chromosome segregation and to the stability of the genome. Nucleation of microtubules (MTs) from centrosomes and chromatin represents two well-characterized pathways essential for the assembly of a dynamic spindle in mitosis. Recently, we identified a third MT nucleation pathway, in which existing MTs in the spindle act as a template to promote the nucleation and polymerization of MTs, thereby efficiently amplifying MTs in the spindle. We will review here our current understanding on the molecular mechanism, the physiological function and the cell-cycle regulation of MT amplification.

Robust Design of Credit Scoring System by the Mahalanobis-Taguchi System

  • Su, Chao-Ton;Wang, Huei-Chun
    • International Journal of Quality Innovation
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    • v.5 no.2
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    • pp.1-16
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    • 2004
  • Credit scoring is widely used to make credit decisions, to reduce the cost of credit analysis and enable faster decisions. However, traditional credit scoring models do not account for the influence of noises. This study proposes a robust credit scoring system based on Mahalanobis-Taguchi System (MTS). The MTS, primary proposed by Taguchi, is a diagnostic and forecasting method using multivariate data. The proposed approach's effectiveness is demonstrated by using real case data from a large Taiwanese bank. The results reveal that the robust credit scoring system can be successfully implemented using MTS technique.

A study on the CTP System development at manufacture based MTO and MTS (MTO와 MTS기반의 생산방식에서의 CTP 시스템 개발에 관한 연구)

  • 여성주;류석곤;왕지남
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2000.04a
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    • pp.534-537
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    • 2000
  • Recently, A manufacturing formula centered of the customer is one of the most important parts for the company competition. Especially, it is the matters of weight and importance that Make to Order(MTO) and Make to stock(MTS) is considered at the same time for designing manufacturing system based the order effectly. This paper suggests a alternative Available to promise(ATP) and capable to promise(CTP) to confirm the delivery time to customer, how to link mid-long term production plan with short term daily based scheduling, how to relate middle processes of device based industry to mid-long term plan through the example of S company in a manufacturing formula mixed MTO and MTS

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Enhanced resource scheduling in Grid considering overload of different attributes

  • Hao, Yongsheng
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.10 no.3
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    • pp.1071-1090
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    • 2016
  • Most of scheduling methods in the Grid only consider one special attribute of the resource or one aspect of QoS (Quality of Service) of the job. In this paper, we focus on the problem that how to consider two aspects simultaneously. Based on the requirements of the jobs and the attributes of the resources, jobs are categorized into three kinds: CPU-overload, memory-overload, and bandwidth-overload jobs. One job may belong to different kinds according to different attributes. We schedule the jobs in different categories in different orders, and then propose a scheduling method-MTS (multiple attributes scheduling method) to schedule Grid resources. Based on the comparisons between our method, Min-min, ASJS (Adaptive Scoring Job Scheduling), and MRS (Multi-dimensional Scheduling) show: (1) MTS reduces the execution time more than 15% to other methods, (2) MTS improves the number of the finished jobs before the deadlines of the jobs, and (3) MTS enhances the file size of transmitted files (input files and output files) and improves the number of the instructions of the finished jobs.

Selecting Optimal Design Condition based on Automobile Ride Satisfaction Using Mahalanobis Taguchi System (Mahalanobis Taguchi System을 이용한 자동차 승차감 만족도를 고려한 설계조건 선정에 관한 연구)

  • Hong, Jung-Eui
    • Proceedings of the Safety Management and Science Conference
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    • 2009.11a
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    • pp.99-107
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    • 2009
  • Mahalanobis Taguchi-System (MTS) has been used in different diagnostic applications to make quantitative decisions by constructing a multivariate system using data analytic methods without any assumption regarding statistical distribution. MTS performs Taguchi's fractional factorial design based on the Mahahlanobis distance as a performance metric. In this study, MTS used for analyzing automotive ride satisfaction, which measured as a CSR(Customer Satisfaction Rating). The automobile which has a good CSR score treated as a normal group for constructing Mahalanobis space. The results of this research show that two attribute (Impact Hardness and Memory Shake) have a minus gain value and can be removed from further analysis. With the linear regression model, the difference of CSR between using all 6 attributes and just using significant 4 attributes compared.

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Selecting Optimal Design Condition Based on Automobile Brake Feeling Using Mahalanobis Taguchi System (Mahalanobis Taguchi System을 이용한 자동차 브레이크 성능 만족도를 고려한 설계조건 선정에 관한 연구)

  • Hong, Jung-Eui;Kwon, Hong-Kyu
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.30 no.1
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    • pp.41-47
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    • 2007
  • Mahalanobis Taguchi-System (MTS) is a pattern information technology, which has been used in different diagnostic ap plications to make quantitative decisions by constructing a multivariate system using data analytic methods without any as sumption regarding statistical distribution. MTS performs Taguchi's fractional factorial design based on the Mahalanobis distance as a performance metric In this work, MTS used for analyzing automotive brake feeling system, which measured as a brake feel index (BFI) from 9 attributes. The automobile which has a good BFI score treated as a normal group for constructing Mahalanobis space. The results of this research show that two attributes (Pre load & Max deceleration) have a minus gain value and can be removed from further analysis. The difference of MD value between using all 9 attributes and just using significant attribute compared.