• Title/Summary/Keyword: Data quality diagnosis

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A Study on Quality Control and Measurement for Acquisition of Dynamic Friction Coefficient on Back-hand Skin (손등피부의 운동마찰계수 획득을 위한 컨트롤 요소 및 측정에 관한 연구)

  • Lee, Jae-Hoon;Song, Han-Wook;Park, Yon-Kyu;Kim, Jong-Yeol
    • Korean Journal of Oriental Medicine
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    • v.14 no.3
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    • pp.103-111
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    • 2008
  • Recently, skin diagnosis has been suggested as a promising tool for discrimination of Sasang Constitution, reported by examining the skin characteristics such as thickness, stiffness, slip, and skin textures like wrinkles and furrows. However, the works had a limitation in that clinical decision on the skin characteristics was made by relying upon oriental medicine doctors' subjective sense of touch. In order to objectify the skin diagnosis and claim its efficacy on the discrimination of the Sasang Constitutions, it is necessary to demonstrate its discrimination capability by providing numerical values in terms of physical quantities obtained from measurements using today's sensors and equipment technologies, which motivated this work as a priliminary step towards objectification of skin diagnosis. The skin characteristics focused in this work is the slip property of the back-hand skin that has been exploited using the dynamic friction measurement system. First, curved geometric effects of the back-hand skin on the measured lateral/vertical force signals were estimated using the artificially designed silicon coated structures, which led to a suggestion on a quality controlled experimental design based upon a empirical analysis model. Second, the experimental design thus suggested has been applied to the measurement of dynamic friction coefficients for two healthy male subjects of Taeumin (TE) and Soyangin (SY), respectively. The result shows that the dynamic friction coefficient is less for the SY subject than for the TE subject around the area of the skin used for diagnosis by the oriental medicine doctor, implying the TE subject's skin is more slippery than the SE subject's that is consistent with the oriental medicine doctor's diagnosis. Hopefully, this work can provide guidelines for obtaining quality data in friction measurement to be collected for discussion on the efficacy of the skin diagnosis and its objectification through statistical analysis.

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Self-diagnosis Algorithm for Water Quality Sensors Based on Water Quality Monitoring Data (수질 모니터링 데이터 기반의 수질센서 자가진단 알고리즘)

  • HongJoong Kim;Jong-Min Kim;Tae-Hyung Kang;Gab-Sang Ryu
    • Journal of Internet of Things and Convergence
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    • v.9 no.1
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    • pp.41-47
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    • 2023
  • Today, due to the increase in global population growth, the international community is discussing solving the food problem. The aquaculture industry is emerging as an alternative to solving the food problem. For the innovative growth of the aquaculture industry, smart fish farms that combine the fourth industrial technology are recently being distributed, and full-cycle digitalization is being promoted. Water quality sensors, which are important in the aquaculture industry, are electrochemical portable sensors that check water quality individually and intermittently, making it impossible to analyze and manage water quality in real time. Recently, optically-based monitoring sensors have been developed and applied, but the reliability of monitoring data cannot be guaranteed because the state information of the water quality sensor is unknown. Therefore, this paper proposes an algorithm representing self-diagnosis status such as Failure, Out of Specification, Maintenance Required, and Check Function based on monitoring data collected by water quality sensors to ensure data reliability.

Data Quality of Childhood Cancer in Khon Kaen, Thailand, 1990-2007

  • Suwanrungruang, Krittika;Kamsa-ard, Supot;Wiangnon, Surapon
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.18
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    • pp.7985-7987
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    • 2014
  • Introduction: Khon Kaen Cancer Registry (KKCR) was established in 1984. KKCR aims to collect all cancer cases in Khon Kaen Province. The poorly qualified data may lead to distort the cancer burden and misinterpretation of policy maker. Objective: To assess data quality in childhood cancer between 1990 and 2007 in Khon Kaen Province, Thailand. Materials and Methods: Data of childhood cancer cases aged less than 20 years diagnosed during 1990-2007 were retrieved from the population-based data set of KKCR. All childhood cancer data were verified before data entry. Internal consistency, percentage of morphological verification (MV%) and cancer cased of the basis of diagnosis by death certificate only (DCO%) were evaluated. The age-adjusted rate (ASR) was calculated by standard method. Results: The data of childhood cancer from KKCR is acceptably qualified which reflects the quality of the whole registration.

The Effect of a Community-Based Self-Management Program for Patients at Thyroid Cancer-Diagnosis Stage : a Pilot Study (재가 갑상선암 환자를 위한 지역암센터 자가관리프로그램 중재 효과에 대한 예비연구)

  • Yoo, Hyera;Boo, Sunjoo;Chun, Mison;Jo, Eun Mi
    • Journal of Korean Public Health Nursing
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    • v.29 no.3
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    • pp.582-593
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    • 2015
  • Purpose: This study was conducted to examine the effectiveness of a self-management program on patients with thyroid cancer, particularly during the time of waiting for surgery after cancer diagnosis. Psychological distress, biological responses of immune cell counts, and quality of life were the variables of this study. Methods: One group pre-post test design was used with the nature of a pilot study. Ten newly diagnosed thyroid cancer patients were recruited through physicians' referrals. After drop out of 4 participants, final data were collected from six participants. Small group technique, a one and half hour-session per week for one month (total 4 sessions, 6 hours) was used. Relaxation techniques, meditation training, and strategies to reduce distress were provided by researchers. Standardized questionnaires and an established bio-assay were used for collection of data. Results: Participants showed significant lowering of psychological distress (p<.05) and improvement in global quality of life (p<.05). Biological responses of immune cell counts did not show statistical significance. Conclusion: The self-management program may reduce psychological distress and improve quality of life of patients with thyroid cancer between the time of diagnosis and surgery. The self-management program would be a valuable approach for patients with an unexpected cancer diagnosis to prepare for their disease experience in a community setting.

System Analysis of Disease Classification of Oriental Medicine Diagnosis and Study for Improvement Method (한방진단명의 질병분류체계 분석과 개선방안 연구)

  • Lee, Hyun Ju;Park, Su Bock;Kim, Su Jin;Ko, Seung Yeon
    • Quality Improvement in Health Care
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    • v.12 no.2
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    • pp.84-92
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    • 2006
  • Background : To examine the difference between ICD-10 and The Korean standard classification of disease(oriental medicine), and to aim at improve the practical use as statistical data. It is one of the reason of disease classification. On that account we convert the many to many correspondence presenting classification of oriental medicine into many to one correspondence. Method : The study tracked out 155 patients discharged from the university hospital which is located in Gyeonggi Province and managing hospital and oriental medicine hospital from July to October this year. The period of this study was from August 1 to November 18. We compared correspondence between the two services' diagnosis(hospital services and oriental medicine hospital services) at the same time and attempted many to one correspondence classification. That is for production of statistical data. Result : We investigated the group which have had medical treatment experience of two kinds of services at the same time. The result of this investigation was that the same oriental medicine diagnosis used differently in western medicine diagnosis. 44.5% was accorded with western medicine diagnosis. Correspondence of the western medicine diagnose with the top of the Korean standard classification of disease(oriental medicine) list's western medicine diagnosis was 13.5%. For many to one correspondence classification for statistics, one western medicine diagnosis was selected for one oriental medicine diagnosis. In case of the main diagnosis(I sign) was not enough to explain oriental medicine diagnosis' characteristic, we chose multiple other diagnosis, so other diagnosis(II sign) about patient's cause of disease could be selected for supplement after we examined the patient's records. The statistics was possible with this many to one correspondence. Conclusion : The result of this study about correspondence between western medicine diagnoses and those of oriental medicine confirms that The Korean standard classification of disease(oriental medicine) is hard to be standardized with western medicine diagnosis. Therefore, according to this study, we use new many to one correspondence classification, multiple oriental medicine diagnoses with one ICD-10, which can be used by statistical data.

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Associations of Spiritual Well-being, Attitude toward Death and Quality of Life among Alcoholics Anonymous (익명의 알코올 중독자의 영적 안녕, 죽음에 대한 태도와 삶의 질의 관련성)

  • Lee, Sangmin;Gang, Moonhee
    • Journal of Korean Academy of Psychiatric and Mental Health Nursing
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    • v.28 no.2
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    • pp.114-123
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    • 2019
  • Purpose: The aim of the study was to investigate associations of spiritual well-being, attitude toward death, and quality of life among Alcoholics Anonymous (AA). Methods: This study was cross-sectional and descriptive in design. The data was collected from August to September 2018 with 133 AA members drawn from two provinces of South Korea. The data were analyzed using descriptive statistics, independent t-tests, one-way ANOVA with Turkey tests, Pearson's correlation coefficients, and hierarchical multiple linear regression analyses using SPSS/WIN 20.0 program. Results: The existential spiritual well-being (β=.52, p<.001), attitude toward death (β=.24, p<.001), dual diagnosis (β=-.17, p=.003), occupation (β=.12, p=.035) of the participants were significant factors, which explained 63.7% of the variance of quality of life. Conclusion: The study findings highlight the need to develop psychological nursing strategies to enhance the spiritual well-being and improve a positive attitude toward death based on the job and dual diagnosis among AA members to improve their better quality of life.

Diagnostic Classification Based on Nonlinear Representation and Filtering of Process Measurement Data (공정측정데이터의 비선형표현과 전처리를 활용한 분류기반 진단)

  • Cho, Hyun-Woo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.5
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    • pp.3000-3005
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    • 2015
  • Reliable monitoring and diagnosis of industrial processes is quite important for in terms of quality and safety. The goal of fault diagnosis is to find process variables responsible for causing specific abnormalities of the process. This work presents a classification-based diagnostic scheme based on nonlinear representation of process data. The use of a nonlinear kernel technique is able to reduce the size of the data considered and provides efficient and reliable representation of the measurement data. As a filtering stage a preprocessing is performed to eliminate unwanted parts of the data with enhanced performance. The case study of an industrial batch process has shown that the performance of the scheme outperformed other methods. In addition, the use of a nonlinear representation technique and filtering improved the diagnosis performance in the case study.

Sensor fault diagnosis for bridge monitoring system using similarity of symmetric responses

  • Xu, Xiang;Huang, Qiao;Ren, Yuan;Zhao, Dan-Yang;Yang, Juan
    • Smart Structures and Systems
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    • v.23 no.3
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    • pp.279-293
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    • 2019
  • To ensure high quality data being used for data mining or feature extraction in the bridge structural health monitoring (SHM) system, a practical sensor fault diagnosis methodology has been developed based on the similarity of symmetric structure responses. First, the similarity of symmetric response is discussed using field monitoring data from different sensor types. All the sensors are initially paired and sensor faults are then detected pair by pair to achieve the multi-fault diagnosis of sensor systems. To resolve the coupling response issue between structural damage and sensor fault, the similarity for the target zone (where the studied sensor pair is located) is assessed to determine whether the localized structural damage or sensor fault results in the dissimilarity of the studied sensor pair. If the suspected sensor pair is detected with at least one sensor being faulty, field test could be implemented to support the regression analysis based on the monitoring and field test data for sensor fault isolation and reconstruction. Finally, a case study is adopted to demonstrate the effectiveness of the proposed methodology. As a result, Dasarathy's information fusion model is adopted for multi-sensor information fusion. Euclidean distance is selected as the index to assess the similarity. In conclusion, the proposed method is practical for actual engineering which ensures the reliability of further analysis based on monitoring data.

Body Image, Self Esteem and Quality of Life in Grown-up Congenital Heart Patients (성인 선천성 심장질환자의 신체상, 자아존중감 및 삶의 질에 관한 연구)

  • Kim, Yu-Jeong;Kim, Keum-Soon
    • The Korean Journal of Rehabilitation Nursing
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    • v.7 no.2
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    • pp.127-139
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    • 2004
  • Purpose: This study was to investigate the degree of body image, self esteem and quality of life, to identify general and disease of characteristics on influencing this factors with the intention of providing basal data for developing nursing intervention to promote body image, self esteem and quality of life. Method: Subjects of this study were 91 grown-up congenital heart patients over 18 years in 2 tertiary hospitals. The data on body image, self esteem and quality of life were collected through questionnaire from March to April 2004. The data were analyzed by descriptive statistics, t-test, Pearson's correlation, ANOVA and tukey test using SAS for Windows 8.1 program. Result: 1) The mean scores of body image, self esteem and quality of life were 63.01, 25.29 and 496.79. 2) Body image was correlated with age(p=.0239), educational level(p=.0182), diagnosis(p=.0066), number of operation(p=.0148), cyanosis(p<.0001), complication(p=.0096) and NYHA level(p=.0378). 3) Self esteem was correlated with education level(p=.0026), economic level(p=.0240), number of operation(p=.0113) and cyanosis (p=.0006). 4) Quality of life was correlated with age(p=.0432) and diagnosis(p=.0020), number of operation (p=.0063), duration of last operation(p=.0225), cyanosis(p<.0001), complication(p=.0090) and NYHA level(p<.0001). 5) There was significantly positive relationship between body image, self esteem and quality of life. Subjects with more positive body image had higher self esteem(r=.7897, p<.05) and subjects with higher self esteem had higher quality of life(r=.6091, p<.05).

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A Study on Product Data Quality Assurance for Automotive Industry (자동차산업에서 제품데이터품질 향상을 위한 연구)

  • Yang Jeongsam;Han Soonhung;Kang Hyejeong;Kim Junki
    • Transactions of the Korean Society of Automotive Engineers
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    • v.13 no.1
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    • pp.184-193
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    • 2005
  • Digital representations of products and parts have largely replaced physical drawings as the form in which product data are stored, analyzed, and communicated among the people contributing to the design of an automobile. Many individuals and companies participate in the design of an increasingly complex automobile; hence, the design process depends critically on team members' ability to share information about essential design elements. These trends have elevated the importance of the quality of product data and its efficient exchange. In this paper, we show state-of-the-art on Product Data Quality(PDQ), and activities of PDQ assurance. And we propose a novel design history-based approach for diagnosis and healing of a CAD model.