• Title/Summary/Keyword: system-identification methods

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Four Case Reports of Neck Pain based on Shanghanlun 燒針(shaozhen) Provisions (『상한론(傷寒論)』 '소침(燒針)' 조문(條文) 및 변병진단체계(辨病診斷體系)에 근거하여 치료한 목통증 증례 4례)

  • Heo, Joo;Cho, Seong-hwan;Lee, Sung-jun
    • 대한상한금궤의학회지
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    • v.10 no.1
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    • pp.95-114
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    • 2018
  • Objective : This study is to report four cases complaining of neck pain that diagnosed by Shanghanlun disease pattern identification diagnostic system and treated with the Shanghanlun Shaozhen(燒針) provision herbal medicine. Methods : Based on the Shanghanlun disease pattern identification diagnostic system, we analyzed four cases treated with Shanghanlun Shaozhen(燒針) provision herbal medicine. Results : In all cases, the NDI and NRS score improved. Conclusions : In Shanghanlun, Shaozhen(燒針) may indicate neck pain. And neck pain can be relieved by administering Shanghanlun Shaozhen(燒針) provision herbal medicine.

Research about application of Shanghanlun disease pattern identification diagnostic system to 2 cases treated by Oreong-san (오령산(五苓散)을 활용한 2개 증례 분석을 통한 『상한론(傷寒論)』 변병진단체계(辨病診斷體系) 응용에 관한 연구)

  • Park, Jae-kyung;Lim, Eun-Kyo
    • 대한상한금궤의학회지
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    • v.10 no.1
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    • pp.81-94
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    • 2018
  • Objective : The objective of this study is to define the clinical meaning of Shanghanlun sentence by applying Shanghanlun disease pattern identification diagnostic system. Methods : 2 clinical cases, which were treated by Oreong-san according to Shanghanlun provisions dualized with Je-Gang(提綱) and Jo-Moon(條文), were analyzed. Results : According to the results of analysis of 2 cases, the patients' diseases were improved. The pain was decreased, and general weakness and anorexia were improved in 2 cases. Conclusions : These results suggests that the medicines from Shanghanlun are clinically effective when Shanghanlun is interpreted considering the origins of Chinese characters in the text, and Shanghanlun disease pattern identification diagnostic system is applied.

Headache with Dyspepsia Treated by Sihogyejigungang-tang Based on Disease Pattern Identification Diagnostic System by Shanghanlun Provisions (『상한론(傷寒論)』 변병진단체계(辨病診斷體系)에 근거하여 시호계지건강탕(柴胡桂枝乾薑湯) 투여 후 호전된 소화불량을 동반한 두통 1례)

  • Kim, Hyeong-seop
    • 대한상한금궤의학회지
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    • v.13 no.1
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    • pp.111-119
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    • 2021
  • Objectives: This case study aimed to report the effect of Sihogyejigungang-tang (SGGT) on headache with dyspepsia based on the disease pattern identification diagnostic system (DPIDS) based on the Shanghanlun provisions. Methods: According to the DPIDS based on the Shanghanlun provisions, the patient was diagnosed with Greater Yang Disease Chest Bind and treated with SGGT. The results of treatment were evaluated by a numerical rating scale (NRS), the Korean Headache Impact Test (KHIT-6), and change in clinical symptoms. Results: After administering SGGT for 160 days, the NRS improved from 9 to 1 and the KHIT-6 improved from 70 to 44. No serious treatment-related adverse events were reported. Conclusions: This study shows the effective treatment of headache with dyspepsia using SGGT based on the DPIDS based on the Shanghanlun provisions.

A Study on Improving the Accuracy of Finite Element Modeling Using System Identification Technique (S. I. 기법을 이용한 유한요소모델의 신뢰도 제고에 관한 연구)

  • 양경택
    • Computational Structural Engineering
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    • v.10 no.2
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    • pp.149-160
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    • 1997
  • Mechanical structures are composed of substructures connected by joints and boundary elements. While the finite element representation of plain substructures is well developed and reliable, joints have a lot of uncertainties in being accurately modelled and affect dynamic behavior of a total system. In order to improve the accuracy of a finite element model, a new method is proposed, in which reduced finite element model is combined with a system identification technique. After substructures except joints are modelled with finite element method and joint properties are represented by parameter states, non-linear state equation is derived in which parameter states are multiplied by physical states such as displacements and velocities. So the joint parameter identification is transformed into non-linear state estimation problem. The methods are tested and discussed numerically and the feasibility for physical application has been demonstrated through two example structures.

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Deep Learning based Rapid Diagnosis System for Identifying Tomato Nutrition Disorders

  • Zhang, Li;Jia, Jingdun;Li, Yue;Gao, Wanlin;Wang, Minjuan
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.13 no.4
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    • pp.2012-2027
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    • 2019
  • Nutritional disorders are one of the most common diseases of crops and they often result in significant loss of agricultural output. Moreover, the imbalance of nutrition element not only affects plant phenotype but also threaten to the health of consumers when the concentrations above the certain threshold. A number of disease identification systems have been proposed in recent years. Either the time consuming or accuracy is difficult to meet current production management requirements. Moreover, most of the systems are hard to be extended, only detect a few kinds of common diseases with great difference. In view of the limitation of current approaches, this paper studies the effects of different trace elements on crops and establishes identification system. Specifically, we analysis and acquire eleven types of tomato nutritional disorders images. After that, we explore training and prediction effects and significances of super resolution of identification model. Then, we use pre-trained enhanced deep super-resolution network (EDSR) model to pre-processing dataset. Finally, we design and implement of diagnosis system based on deep learning. And the final results show that the average accuracy is 81.11% and the predicted time less than 0.01 second. Compared to existing methods, our solution achieves a high accuracy with much less consuming time. At the same time, the diagnosis system has good performance in expansibility and portability.

Development of the structural health record of containment building in nuclear power plant

  • Chu, Shih-Yu;Kang, Chan-Jung
    • Nuclear Engineering and Technology
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    • v.53 no.6
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    • pp.2038-2045
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    • 2021
  • The main objective of this work is to propose a reliable routine standard operation procedures (SOP) for structural health monitoring and diagnosis of nuclear power plants (NPPs). At present, NPPs have monitoring systems that can be used to obtain the quantitative health record of containment (CTMT) buildings through system identification technology. However, because the measurement signals are often interfered with by noise, the identification results may introduce erroneous conclusions if the measured data is directly adopted. Therefore, this paper recommends the SOP for signal screening and the required identification procedures to identify the dynamic characteristics of the CTMT of NPPs. In the SOP, three recommend methods are proposed including the Recursive Least Squares (RLS), the Observer Kalman Filter Identification/Eigensystem Realization Algorithm (OKID/ERA), and the Frequency Response Function (FRF). The identification results can be verified by comparing the results of different methods. Finally, a preliminary CTMT healthy record can be established based on the limited number of earthquake records. It can be served as the quantitative reference to expedite the restart procedure. If the fundamental frequency of the CTMT drops significantly after the Operating Basis Earthquake and Safe Shutdown Earthquake (OBE/SSE), it means that the restart actions suggested by the regulatory guide should be taken in place immediately.

Method Discrimination for Product Traceability and Identification of Korean Native Chicken using Microsatellite DNA (초위성체를 이용한 한국 재래닭의 원산지 추적 및 개체 식별 방법에 관한 연구)

  • Park, Mi-Hyun;Oh, Jae-Don;Jeon, Gwang-Joo;Kong, Hong-Sik;Sang, Byong-Don;Choi, Chull-Hwan;Yeon, Sung-Hum;Cho, Byong-Wok;Lee, Hak-Kyu
    • Korean Journal of Organic Agriculture
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    • v.12 no.4
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    • pp.451-461
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    • 2004
  • In an animals, identification system has been widely used by ear tag with dummy code and blood typing for parernity. Also, genotyping methods were using for useful mean of individual identification for live animals. In the case of genotyping estimation of gene in population of korean native chicken. In this study, we tested for development of genetic markers used it possible to determination of individual identification system. The candidate genetic markers were used already bow 10 of microstalite DNA sequence information in chromosome No. 1 and 14. Result of analysis for genotyping, the number of alleles of those microstatelites DNA was shown minimal 3 to 12 and the heterozygote expression frequency range was shown from 0.617 to 0.862. In our result, effective number of allele for each microsatellites DNA was shown 3~7, and the accuracy of individual identification was shown nearly 100%, when used with 6 genetic marker. This study was about genotyping method for identification used specific genetic marker form microsatellite DNA in the brand marketing of korean native chicken. Our results suggest that genotyping method used specific genetic marker from microsatellite DNA might be very useful for determination of individual identification.

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Damage Estimation of Structures Incorporating Structural Identification (동특성 추정을 이용한 구조물의 손상도 추정)

  • Yun, Chung-Bang;Lee, Hyeong-Jin;Kim, Doo-Ki
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 1995.04a
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    • pp.136-143
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    • 1995
  • The problem of the structural identification becomes important, particularly with relation to the rapid increase of the number of the damaged or deteriorated structures, such as highway bridges, buildings, and industrial facilities. This paper summarizes the recent studies related to those problems by the present authors. The system identfication methods are generally classified as the time domain and the frequency domain methods. As time doamin methods, the sequential algorithms such as the extended Kalman filter and the sequential prediction error method are studied. Several techniques for improving the convergences are incorporated. As frequency domain methods, a new frequency response function estimator is introduced. For damage estimation of existing structures, the modal perturbation and the sensitivity matrix methods are studied. From the example analysis, it has been found that the combined utilization of the measurement data for the static response and the dynamic (modal) properties are very effictive for the damage estimation.

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Analysis of Development and Application of Pattern Identification System -Based on Oriental Obesity Pattern Identification- (변증 진단 체계 개발 및 응용 연구 분석 -한방 비만변증을 중심으로-)

  • Park, Jung-Sik;Song, Yun-Kyung;Hwang, Eui-Hyoung;Chung, Won-Suk;Park, Won-Hyung;Cha, Yun-Yeop;Shin, Seung-Woo;Park, Tae-Yong;Jang, Bo-Hyoung;Kim, Ho-Jun;Ko, Seong-Gyu
    • Journal of Korean Medicine Rehabilitation
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    • v.24 no.2
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    • pp.107-114
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    • 2014
  • Objectives The purpose of this study is analyzing internal research trends of oriental obesity pattern identification in korean literature based on obesity pattern identification questionnaires, development and application of Pattern Identification System to help solve problems of future researches. Methods 6 Korean databases were searched for articles of oriental obesity pattern identification, irrespective of publication year and 13 studies were reviewed. An analytical method such as descriptive statistics and an actual number and percentage was used. Results We collected 13 studies. 4 studies were published in 2012 and 2008, the highest number of studies. 7 Clinical studies were the major research method. The Studies were classified according to the characteristics and design. 5 studies were about research of analysis and improvement of oriental obesity pattern identification questionnaire, the most number of studies. 4 studies were about research of observational studies in clinical on obesity pattern identification. 3 studies were about research of intervention studies in clinical on obesity pattern identification and 1 study was about clinical practice recommendation. Conclusions Establishment of obesity pattern identification system and its clinical application could lead to standardizing obesity pattern identification and clinical practice guideline. Applied on other diseases, obesity pattern identification system could also lead to improving treatment rate, contributing to the development of clinical practice guidelines and academic field of research.

Detection and parametric identification of structural nonlinear restoring forces from partial measurements of structural responses

  • Lei, Ying;Hua, Wei;Luo, Sujuan;He, Mingyu
    • Structural Engineering and Mechanics
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    • v.54 no.2
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    • pp.291-304
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    • 2015
  • Compared with the identification of linear structures, it is more challenging to conduct identification of nonlinear structure systems, especially when the locations of structural nonlinearities are not clear in structural systems. Moreover, it is highly desirable to develop methods of parametric identification using partial measurements of structural responses for practical application. To cope with these issues, an identification method is proposed in this paper for the detection and parametric identification of structural nonlinear restoring forces using only partial measurements of structural responses. First, an equivalent linear structural system is proposed for a nonlinear structure and the locations of structural nonlinearities are detected. Then, the parameters of structural nonlinear restoring forces at the locations of identified structural nonlinearities together with the linear part structural parameters are identified by the extended Kalman filter. The proposed method simplifies the identification of nonlinear structures. Numerical examples of the identification of two nonlinear multi-story shear frames and a planar nonlinear truss with different nonlinear models and locations are used to validate the proposed method.