• Title/Summary/Keyword: resistance diagnosis

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Comparison among diagnostic tools used for differential diagnosis of blood stasis pattern in Korea, China and Japan (한중일 어혈증 감별진단을 위한 도구의 비교)

  • Kim, Jiwon;Nam, Dong-Hyun
    • The Journal of the Society of Korean Medicine Diagnostics
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    • v.22 no.1
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    • pp.1-10
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    • 2018
  • Objectives The purpose of this study is to compare the representative differential diagnosis methods of blood stasis pattern used in Korea, China and Japan, and then to characterize each diagnostic method. Methods Through the journal databases, we have selected representative tools that were developed for differential diagnosis of blood stasis pattern in Korea, China and Japan. In order to characterize the selected check-lists or questionnaires, we investigated the number of items, contents, score calculation method, internal consistency, and accuracy of each selected tool. Results A total of four diagnostic tools were finally selected; quantitative diagnosis scale of blood stasis syndrome (QDSBSS), diagnostic criteria for blood stasis (DCBS), blood stasis questionnaire (BSQ), and blood stasis syndrome questionnaire (BSSQ). The key points in the differential diagnosis for blood stasis were different for each of the diagnostic tool. The key point was oral mucosa (including tongue) status in the QDSBSS. Meanwhile it was abdominal pain/resistance in the DCBS, and general pain in the BSQ. Accuracy of the QDSBSS, the BSQ and the BSSQ were powerful but all of them was not generalized. Conclusions Therefore, it is desirable to select and apply a plurality of appropriate tools according to the characteristics of the blood stasis patients.

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Study on The Corrosion Rate Monitoring of Steel in Concrete Using Electric resistance Sensor and Electrochemical Methods. (전기저항형 센서 및 전기화학적 방법을 이용한 철근콘크리트 구조물의 부식속도 측정 방법에 관한 연구)

  • 조용범;김용철;장상엽;고영태
    • Proceedings of the Korea Concrete Institute Conference
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    • 2001.11a
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    • pp.1185-1192
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    • 2001
  • This paper reviews available techniques for monitoring corrosion of steel in concrete. The need for early detection and diagnosis of corrosion related deterioration in reinforced structures is widely acknowledged. This is particularly important in reinforced concrete structures on account of the economic and social significance of the problem. The current generally used on-site procedure for corrosion monitoring of reinforced structures employs a method of half-cell surface potential measurements. While the technique has provided a useful means of delineating areas of high or low corrosion risk, there are difficulties in its use and interpretation when assessing rates of deterioration. Electrochemical techniques are by far the most suitable for corrosion monitoring purpose and meet most of the requirements. The aim of this paper is to describe the electric resistance sensor(ER sensor) and electrochemical techniques employed to monitor and estimate corrosion rates of reinforcement. Early detection and diagnosis of corrosion hazards allows preventive measures to be taken, hence the typically expensive repair of severely deteriorated structures can be avoided.

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Update on Non-alcoholic Fatty Liver Disease in Children (소아 비알코올성 지방간의 최신 지견)

  • Lee, Kyung-Hun
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.12 no.sup1
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    • pp.62-71
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    • 2009
  • Non-alcoholic fatty liver disease (NAFLD) is the most common cause of pediatric liver disease. Similar to NAFLD in adults, NAFLD in children is associated with obesity and insulin resistance and requires liver histology for diagnosis and staging. However, significant histological differences exist between adult and pediatric NAFLD. The rise in childhood obesity has been accompanied by an increase in pediatric NAFLD. Age, gender and race/ethnicity are significant determinants of risk, and sex hormones, insulin sensitivity and adipocytokines are implicated in the pathogenesis of pediatric NAFLD. There is no consensus for treatment of NAFLD, however, data suggest that diet, exercise and some pharmacological therapies may be of benefit. To evaluate and effectively treat pediatric NAFLD, the pathophysiology and natural history of the disease should be clarified and non-invasive methods for screening, diagnosis, and longitudinal assessment developed.

Condition Diagnosis by the Complex Accelerating Degradation for fault Prediction & estimation of reliability on the traction motor - Insulation Resistance & Polarization Index Properties (견인전동기의 고장예측 및 신뢰성 평가를 위한 복합가속열화 상태진단 - 절연저항 및 성극지수 특성 연구)

  • Wang, Jong-Bae;Byun, Yoon-Sub;Baek, Jong-Hyen;Park, Hyun-Jun
    • Proceedings of the KIEE Conference
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    • 2000.07b
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    • pp.1374-1376
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    • 2000
  • In this paper, sample coils for stator form-wound winding of traction motor were tested by the accelerative thermal degradation, which composed of heat, vibration, moisture and overvoltage applying. Reliability and expected life were evaluated on the insulation system for 200 class traction motor. After aging of 10 cycles, insulation resistance and PI properties were investigated as diagnosis tests in the range of $20{\sim}160^{\circ}C$. Analysis of polarization properties was performed on the base of do current-time change.

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Increased Biceps Translation: A Clinical Sign of Complete Distal Biceps Tendon Rupture

  • Malhotra, Karan;Waheed, Abdul
    • Clinics in Shoulder and Elbow
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    • v.19 no.1
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    • pp.48-50
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    • 2016
  • Various tests to help in the clinical diagnosis of distal biceps tendon ruptures have been described. In our experience these tests are painful in the acute setting. We suggest a simple alternative test wherein the biceps muscle belly is held by the examiner and translated medially and laterally. This is done with the forearm flexed to 90 degrees. It is first performed with the biceps relaxed and subsequently performed with the forearm flexed against resistance. In the relaxed forearm the biceps easily translates over 50% of its width. When placed under tension (by flexing against resistance) this translation is significantly reduced. In cases of complete distal biceps tendon rupture, the biceps still translates, even under resisted flexion of the forearm. This simple test is less painful than other described tests, is easy to perform, and aids in clinical diagnosis of distal biceps tendon ruptures.

Performance of the BD MAX MDR-TB assay in a clinical setting and its impact on the clinical course of patients with pulmonary tuberculosis: a retrospective before-after study

  • Sung Jun Ko;Kui Hyun Yoon;Sang Hee Lee
    • Journal of Yeungnam Medical Science
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    • v.41 no.2
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    • pp.113-119
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    • 2024
  • Background: Missing isoniazid (INH) resistance during tuberculosis (TB) diagnosis can worsen the outcomes of INH-resistant TB. The BD MAX MDR-TB assay (BD MAX) facilitates the rapid detection of TB and INH and rifampin (RIF) resistance; however, data related to its performance in clinical setting remain limited. Moreover, its effect on treatment outcomes has not yet been studied. Methods: We compared the performance of BD MAX for the detection of INH/RIF resistances to that of the line probe assay (LPA) in patients with pulmonary TB (PTB), using the results of a phenotypic drug sensitivity test as a reference standard. The treatment outcomes of patients who used BD MAX were compared with those of patients who did not. Results: Of the 83 patients included in the study, the BD MAX was used for an initial PTB diagnosis in 39 patients. The sensitivity of BD MAX for detecting PTB was 79.5%. The sensitivity and specificity of BD MAX for INH resistance were both 100%, whereas these were 50.0% and 95.8%, respectively, for RIF resistance. The sensitivity and specificity of BD MAX were comparable to those of LPA. The BD MAX group had a shorter time interval from specimen request to the initiation of anti-TB drugs (2.0 days vs. 5.5 days, p=0.001). Conclusion: BD MAX showed comparable performance to conventional tests for detecting PTB and INH/RIF resistances. The implementation of BD MAX as a diagnostic tool for PTB resulted in a shorter turnaround time for the initiation of PTB treatment.

ART2 Neural Network Applications for Diagnosis of Sensor Fault in the Indoor Gas Monitoring System

  • Lee, In-Soo;Cho, Jung-Hwan;Shim, Chang-Hyun;Lee, Duk-Dong;Jeon, Gi-Joon
    • 제어로봇시스템학회:학술대회논문집
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    • 2004.08a
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    • pp.1727-1731
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    • 2004
  • We propose an ART2 neural network-based fault diagnosis method to diagnose of sensor in the gas monitoring system. In the proposed method, using thermal modulation of operating temperature of sensor, the signal patterns are extracted from the voltage of load resistance. Also, fault classifier by ART2 NN (adaptive resonance theory 2 neural network) with uneven vigilance parameters is used for fault isolation. The performances of the proposed fault diagnosis method are shown by simulation results using real data obtained from the gas monitoring system.

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A Development of Ethernet-Based Remote Diagnosis System for DC Voltage Smoothing Capacitor using DSP (DSP를 적용한 전력용 DC 평활 커패시터의 이더넷 원격 고장진단시스템 개발)

  • Shon, Jin-Geun
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.60 no.2
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    • pp.94-98
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    • 2011
  • Electrolytic power capacitors today form essential components for virtually any power electronic system such as DC/DC converter or UPS. Frequently, electrolytic capacitors for DC link voltage smoothing are the key components which determine the life cycle of the whole unit and often are responsible for converter breakdown failures. In this paper, ethernet-based remote diagnosis system for DC voltage smoothing capacitor using DSP control board is developed. To estimate the status of the capacitor, the equivalent series resistor(ESR) of the component has to be determined. The ESR detection scheme is based on the determination of the capacitor ripple power losses calculated from DC link voltage/current measurement. Experimental results show the veridity and reliability of the proposed ethernet-based remote on-line capacitor diagnosis system.

A study of Insulation Diagnosis for Large-Capacity Mold Transformer (대용량 몰드변압기 정밀절연진단 결과 고찰)

  • Lee, Eun-Chun;Kim, Jae-Chul
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.28 no.10
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    • pp.75-81
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    • 2014
  • When the large-capacity Mold type Transformer was passed through rain, after it was dried and it's parts were changed, Insulation Diagnosis was made to evaluate the condition of it and decide to recharge. Using the evaluation of Insulation Diagnosis, the urgent decision-making for recharge made blackout time minimum. In this study, it was considered that Insulation Diagnosis for the large-capacity Mold type Transformer is applied to decision-making for reuse of high voltage electric power equipment by analysis of the case study.

Steady-State and Transient-State Electromagnetic Analysis of the 30 kVA Superconducting Generator (30 kVA 초전도 발전기의 정상상태 및 과도상태 전자계 해석)

  • Ha, Kyoung-Duck;Hwang, Don-Ha;Park, Doh-Young;Kim, Yong-Joo
    • Proceedings of the KIEE Conference
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    • 1998.07a
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    • pp.91-93
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    • 1998
  • In this paper 30 kVA superconducting generator's transient-state electromagnetic analysis by FEM is described. The transient-state analysis by moving air gap technique was performed to analyze its 3 phase sudden short circuit characteristics. External circuit components were connected to generator model with end-winding resistance and inductance.

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