• Title/Summary/Keyword: diagnostic point

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Study on Comarison of EAV Measurement Points with Acupuncture Points (EAV경락계와 고전침구경락계의 경혈학적 비교.고찰)

  • Ryu, Kyung-Joo;Kim, Jung-Heon
    • Korean Journal of Oriental Medicine
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    • v.1 no.1
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    • pp.363-400
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    • 1995
  • The electroacupuncture according to Voll(EAV) is a method of combining the fundamentals of classical acupuncture with the facilities of modern electronics for diagnostics and therapy. Classical acupuncture uses energy conducting lines called 'meridians' and acupuncture points situated along them. Dr. Voll is considered the founder of 'EAV' since he succeeded not only in finding a method of exact electric localization and in explaining the interelation between the acupuncture points and their individual organs, but he also succeeded in measuring the resistance of these points and in explaining the diagnostic meaning of the measured values. In the course of his research, Voll found numerous new measurement points and energy conducting vessels unknown to classical acupuncture, but indispensible for diagnosis of human organic functions. As a basis of modern research in meridian theory, I tried to compare EAV measurement point with classical acupuncture point.

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Biosensors (바이오센서)

  • 김의락
    • KSBB Journal
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    • v.15 no.5
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    • pp.423-427
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    • 2000
  • Intense research on biosensors has been performed in a number of different institution over the past 15 years, but relatively few commercial products have resultingly, the blood glucose sensor is a good example of a product which penetrated the market. However recently, the development of electrochemical and optical technologies has accelerated the turnover of the research as is illustrated by a rapid increase in the number of point-of-care diagnostic systems and analytical devices. Examples of such biosensors used in the fields of medical diagnostics, bioprocess control, and environmental monitoring are described, and summarized in an introduction to their characteristics, structures, and functions, given.

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COMPARATIVE STUDY ON THE HORIZOTAL MEASUREMENTS OF SKELETAL CLASS III MALOCCLUSION USING THE ROC ANALYSIS (ROC 분석을 이용한 골격성 III급 부정교합의 수평계측방법간 비교연구)

  • Choi, Hee-Young;Chang, Young-Il
    • The korean journal of orthodontics
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    • v.25 no.2 s.49
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    • pp.153-163
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    • 1995
  • In this study, Receiver Operating Characteristic(ROC) analysis was used to evaluate the ability of cephalometric measurements to identify patients with Class III malocclusions. ROC analysis is the method for determining the validity of a diagnostic measure and for evaluating the relative value of diagnostic tests. The sample consisted of 496 patients with malocclusion. Class III malocclusion is defined as the dental relationship for which The mesiobuccal groove of the lower first molar is deviated mesially from the mesiobuccal cusp of the upper first molar. Of the total sample of 496 patients, 245 had Class III malocclusions. 16 cephalometric measurements were selected, each of which was treated as a diagnostic test. The ROC curves were generated for each cephalometric measurement with intervals of $1.0^{\circ}$ for angular measurements, 1.0mm for linear measurements. The area under the ROC curves was measured for direct comparison among different diagnostic tests. The results were as follows; 1. The 'Wits' appraisal was found to be a better diagnostic criterion for the presence of Class III malocclusion than any other commonly'used cephalometric measurement. 2. AB plane angle, ANB angle, App-Bpp distance, AF-BF distance, APDI, Distance of point A and Pog to N perpendicular, maxillomandibular differential had high diagnostic value. 3. Cephalometric measurements which evaluate the position of the mandible had moderate diagnostic value. 4. Cephalometric measurements related to the maxilla discriminated least between patients with and without Class III malocclusion.

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The Validity and Reliability of the Daegu Diagnostic Aphasia Examination (대구 실어증 진단검사 개발 및 표준화 연구 -신뢰도와 타당도-)

  • Kim, Ji-Chae;Ahn, Jong-Bok;Lee, Ok-Bun;Hwang, Young-Jin;Jeong, Ok-Ran
    • Speech Sciences
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    • v.12 no.3
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    • pp.7-17
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    • 2005
  • This study aimed at investigating the validity and reliability of the Daegu Diagnostic Aphasia Examination (DDAE). The DDAE has been developed to assess aphasics' receptive and expressive language ability. One hundred and forty eight aphasics (96 males and 52 females) diagnosed as aphasics participated in this study. Reliability coefficients showed that the DDAE was highly consistent and accurate (Cronbach's a = .76$\sim$.82). For its' content-validity, a 5-point scale was administered. Four speech and language pathologists served as evaluator. The receptive language mean score was 4.29, the expressive language mean score was 4.09, and the right-hemisphere function mean score was 4.00. For construct validity, the correlation total scores were calculated. The results showed a significant correlation.

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A Real-Time Method for the Diagnosis of Multiple Switch Faults in NPC Inverters Based on Output Currents Analysis

  • Abadi, Mohsen Bandar;Mendes, Andre M.S.;Cruz, Sergio M.A.
    • Journal of Power Electronics
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    • v.16 no.4
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    • pp.1415-1425
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    • 2016
  • This paper presents a new approach for fault diagnosis in three-level neutral point clamped inverters. The proposed method is based on the average values of the positive and negative parts of normalized output currents. This method is capable of detecting and locating multiple open-circuit faults in the controlled power switches of converters in half of a fundamental period of those currents. The implementation of this diagnostic approach only requires two output currents of the inverter. Therefore, no additional sensors are needed other than the ones already used by the control system of a drive based on this type of converter. Moreover, through the normalization of currents, the diagnosis is independent of the load level of the converter. The performance and effectiveness of the proposed diagnostic technique are validated by experimental results obtained under steady-state and transient conditions.

A case of functional abdominal pain with Gyejiyimahwangyil-tang (계지이마황일탕(桂枝二麻黃一湯) 투여 후 호전된 기능성 복통 1례)

  • Kim, Seulki
    • 대한상한금궤의학회지
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    • v.11 no.1
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    • pp.27-34
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    • 2019
  • Objective : The purpose of the present study was to report the improvement of functional abdominal pain in a patient treated with a herb medication based on a disease pattern identification diagnostic system under the provision of Shanghanlun (DPIDS). Methods : According to DPIDS, the patient was diagnosed with Taeyang-byung, no. 25 provision, and was administered with Gyejiyimahwangyil-tang herb medication for 60 days. The severity of the abdominal pain was assessed with the five-point Likert scale. Results : The abdominal pain in the patient disappeared following treatment with Gyejiyimahwangyil-tang, which is described in the 25th provision of Shanghanlun. Conclusions : The present case report suggests that '瘧', a word in the 25th provision of Shanghanlun may indicate severe abdominal pain at nighttime and not just malaria.

Composition of Diagnostic System for Reactor Internal Structures Using Neutron Noise (중성자 신호이용 원자로 내부 구조물 감시시스템 구성)

  • Park, Jong-Beom;Kim, Jong-Bong;Park, Jin-Ho
    • Proceedings of the KIEE Conference
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    • 2002.07d
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    • pp.2252-2254
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    • 2002
  • The Reactor internal structures which consist of many complex components are subjected to flow-induced vibration due to high temperature and pressure in Reactor coolant system. The above flow-induced vibration causes degradation of structural integrity of the Reactor and may result in loosing mechanical binding component which might impact other equipment and component or cause flow blockage. It is important to analyze reactor noise signal for the early detection of potential problem or failure in order to diagnosis reactor integrity in the point of view of safety and plant economics. Detailed composition of diagnostic system reactor internal structures using neutron noise(RIDS).

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Design of Hardward Diagnostic System for Reactor Internal Structures Using Neutron Noise (중성자 신호이용 원자로 내부 구조물 감시시스템 하드웨어 설계)

  • Park, Jong-Beom;Park, Jin-Ho;Hwang, Choong-Hwan;Kim, Soo-Hong
    • Proceedings of the KIEE Conference
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    • 2001.07d
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    • pp.2166-2168
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    • 2001
  • Reactor Noise is defined as the fluctuations of measured instrumentation signals during full-power operation of reactor which have informations on reactor system dynamics such as neutron kinetics. The Reactor internal structures which consist of many complex components are subjected to flow-induced vibration due to high temperature and pressure in reactor coolant system. The above flow-induced vibration causes degradation of structural integrity of the reactor and may result in loosing mechanical binding component which might impact other equipment and component or cause flow blockage. It is important to analyze reactor noise signal for the early detection of potential problem or failure in order to diagnosis reactor integrity in the point of view of safety and plant economics. Detailed design of hardware diagnostic system reactor internal structures using neutron noise(RIDS).

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Diagnostic methods applied to Esfahan light water subcritical reactor (ELWSCR)

  • Arkani, Mohammad
    • Nuclear Engineering and Technology
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    • v.53 no.7
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    • pp.2133-2150
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    • 2021
  • In this work, Esfahan light water subcritical reactor (ELWSCR) is analysed using experimental and theoretical diagnostic methods. Important neutronic parameters of the system such as prompt neutron lifetime, delayed neutron fraction, prompt neutron decay constant, negative reactivity of the core, fuel and moderator temperature coefficient of reactivity, and overall and local void coefficient of reactivity are estimated. Also, neutron flux distribution, reflector saving, water level effect, and lattice pitch of the core including operating point of the facility are studied in details. Theoretical results are calculated by MCNPX and measurements are performed utilizing zero power reactor noise method. Detailed descriptions of the results are explained in the text.

Depth estimation for surface-breaking cracks in steel-fiber reinforced concrete using ultrasonic surface waves

  • Ahmet S. Kirlangic;Zafer Iscan
    • Structural Monitoring and Maintenance
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    • v.9 no.4
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    • pp.373-388
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    • 2022
  • A USW based diagnostic procedure is presented for estimating the depth of surface-breaking cracks. The diagnosis is demonstrated on seven lab-scale SFRC beam specimens, which are subjected to the CMOD controlled three-point bending test to create real bending cracks. Then, the recorded multiple ultrasonic signals are examined with the signal processing techniques, including wavelet transform and two-dimensional Fourier transform, to investigate the relationships between the crack depth and two diagnostic indices, namely the attenuation coefficient and dispersion index (DI). Finally, the reliabilities of these indices for depth estimation are verified with the visually measured crack depths as well as the crack features obtained with a digital image processing algorithm. It is found that the DI outperforms the attenuation coefficient in depth estimation, where this index displays good agreement with the visual inspection for 86% of the inspected specimens.