• Journal of Magnetics
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• 제20권2호
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• pp.114-119
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• 2015

This study explored the effect of pulsed magnetic field (PMF) stimulus on the improvement of blood stagnation by means of photoplethysmography (PPG). Our stimulus system was designed to generate PMF with a maximum intensity variation of 0.20 T at a transition time of $160{\mu}s$, with pulse intervals of 1 Hz. In order to quantitatively estimate vascular condition, indices such as blood vessel tension (BVT), stress power (SP), differential pulse wave index (DPI) and remained blood volume (RBV) were calculated from the second derivative of the PPG signal and power density spectrum (PDS). Our results showed that non-invasive PMF stimulus was effective in improving blood stagnation. Therefore, it may be concluded that appropriate PMF stimulus affects the blood circulatory system.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2004년도 추계학술대회논문집
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• pp.782-785
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• 2004

In the Well-being age, many people use a city park for rest deeply think and constitutional walk. The city park is located at near side by traffic road in urban. Citizens are not satisfied with it's fuction as a haven of peace due to road traffic noise. Thus, this study is for a research on the actual noise condition of a city park in Nowon go. This study uses a prediction method called ASJ-model in order to calculate PWLs of road traffic noise. Using calculated PWLs, noise levels in a park are predicted and compared with measured values.

• 동의생리병리학회지
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• 제34권6호
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• pp.362-371
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• 2020

In order to find out the relationship between the Eight Principle Pattern Identification of Yin-Yang, Exterior-Interior and the Sasang constitution, we analyzed the clinical data from 500 women with menstrual pain and women without menstrual pain. In the previous study, the subject's information of Typology Complexion Pulse and Symptom was collected, and Eight Principle Pattern Identification was executed based on this. Later, The relationship between the Sasang constitution and the Eight Principle Pattern Identification was statistically analyzed. The obvious difference between the experimental group and the control group in the patterns of Yin-Yang and Exterior-Interior is that patients who complain of menstrual pain do not maintain harmony with the yin-yang ratio, it can be said that the patterns of Yin-Yang and Exterior-Interior can be a identification standard that significantly obscures the condition of the disease. There was a significant difference between the Sasang constitution and the Eight Principle Pattern Identification of Yin-Yang. There was no significant difference between the Sasang constitution and the Eight Principle Pattern Identification of Exterior-Interior. It is assumed that the relationship between the Eight Principle Pattern Identification and the Sasang constitution has changed depending on the difference a view of emotional Qi and pathogenic Qi.

• 동의생리병리학회지
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• 제35권6호
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• pp.274-279
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• 2021

This study was conducted to find objective diagnostic indicators for the Eight Principle Pattern Identification using a pulse wave analyzer. Typology Complexion Pulse and Symptom data from 500 women over the age of 18 were used. Five experts made a diagnosis of Eight Principle Pattern Identification and divided the subjects into 'Yin-Yang', 'Exterior-Interior', 'Cold-Heat', 'Deficiency-Excess' groups. Their pulse waves were measured in the left and right radial arteries, and it was investigated whether there was a significant difference between groups in the pulse wave parameter values. 'Yin' group showed a significantly lower value in the left radial artery for Ener, Emin, EIX, T4T, T4TT parameters and in the Right for T2, T2T, T5. The Vmag, As and Ad parameters were significantly different between the 'Exterior' and 'Interior' groups. 'Heat' group showed a significantly higher value in the right radial artery for RAI/t parameter. 'Deficiency' group showed a significantly higher value in the right radial artery for W, Angl parameters. Through this study, significant pulse wave parameters were found, and they can be used as objective diagnostic indicators for Eight Principle Pattern Identification.

• Journal of Welding and Joining
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• 제22권2호
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• pp.59-68
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• 2004

Plasma transferred arc welding (PTAW) has been taken into consideration for repairing Ni-based superalloy components used gas turbine blades. Various cracks has been generally reported to be found in the base metal heat affected zone(HAZ) along grain boundary. Thus, hot cracking susceptibility of Ni-based superalloys was evaluated according to heat treatments. Hot ductility test was conducted on specimens with solution treated at 112$0^{\circ}C$ for 2 hours and aging treated at 845$^{\circ}C$ for 24hours after solution treatment. The results of the hot ductility test appeared that solution treated specimens were the highest ductility recovery rate among three conditions. The loss of ductility at high temperature in Ni-based superalloy was mainly controlled by the degree of pain boundary wetting due to constitutional liquation of MC carbide precipitates. Meanwhile, the highest ductility recovery rate in solution-treated alloys seems to be lack of M23C6, which can be dissolved during heating and then result in the local enrichment of Cr in the vicinity of the grain boundary.

• 대한한의학회지
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• 제45권1호
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• pp.203-214
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• 2024

Objectives: In the context of competency-based education emphasized in Korean Medicine, this study aimed to develop a pilot version of a CPX (Clinical Performance Examination) Practicing Chatbot utilizing large language models with prompt engineering. Methods: A standardized patient scenario was acquired from the National Institute of Korean Medicine and transformed into text format. Prompt engineering was then conducted using role prompting and few-shot prompting techniques. The GPT-4 API was employed, and a web application was created using the gradio package. An internal evaluation criterion was established for the quantitative assessment of the chatbot's performance. Results: The chatbot was implemented and evaluated based on the internal evaluation criterion. It demonstrated relatively high correctness and compliance. However, there is a need for improvement in confidentiality and naturalness. Conclusions: This study successfully piloted the CPX Practicing Chatbot, revealing the potential for developing educational models using AI technology in the field of Korean Medicine. Additionally, it identified limitations and provided insights for future developmental directions.

• 한국막학회:학술대회논문집
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• 한국막학회 2003년도 The 4th Korea-Italy Workshop
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• pp.81-85
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• 2003

PU block polymers are constituted by sequences of constitutional units CU which are : a diisocyanate T, a polyol or a polyamine V, an extensor E .Due to the CU different solubility parameters ,hard and soft micro domains are formed;they can aggregate into different phases. A linear PU can be described by two parameters R=T/N and $R_{E}$=(R-1)V/E.A stoichiometric model is proposed which gives the general formula of all the possible PU: X((TV)$_{k}$(TE)$_{n}$)$_{m}$X , where k and m can be calculated from the experimental molecular weights respectively of pre polymer and polymer and n= R-1.Physical properties depend on PU composition and on nature of CU. I.R. analysis is useful for discovering the hydrogen bonds location : DSC gives informations on the presence of the different phases .PALS analysis shows that nano cavities become tighter on increasing n. A series of particular Pus ,obtained from :TDI, a low molecular weight polyol, a cyclic extensor, at different R and RE was prepared and analysed. These PU are amorphous, monophasic and appear to be good candidates for membranes.nes.nes.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1991년도 추계학술대회
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• pp.126-128
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• 1991

Skin conductance level(SCL) was measured in 51 paralytic subjects. The measurements are made on the back of the second metacarpal according to the Zhang's method. Physical constitution is classified based on the Lee's physical constitution theory. The following tendencies were observed. In paralytic examinees, SCL of micro-positive physical constitution is generally higher than that of micro-negative and macro-negative physical constitution. And as Setting old, SCL is slightly decreased.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1997년도 추계학술대회
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• pp.305-314
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• 1997

This study was purposed to observe the advantages obtained from iridodiagnostics and automatic iridoscope or oriental medical doctors. In order to study the iridodiagnostics, 5 case-researches were made as the first step. The results were obtained as follows. 1. First of all, the formation of darkening area must be paid attentionally with toxic spot and lacunain relation to the interpretation of present illness. 2. The theoretical concepts about structure in iridodiagnostics and oriental medicine were same. 3. The constitutional type of iridodiagnostics played a important role in concluding the nature and background of symptoms. 4. Most of iris signs reflected the histological changes of body structure equally, and successive study about the difference of visceral scheme between iridology and Oriental Medicine would be needed in the future.

• 사상체질의학회지
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• 제8권1호
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• pp.101-186
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• 1996

1. 연구배경 : 사상의학의 가장 중요한 요점은 체질진단이다. 그간 다양한 체질변증에 관한 연구가 있었지만 신체 각부의 형태학적인 연구, 특히 얼굴을 대상으로 한 연구는 거의 전무하였다. 저자들은 그 동안 전일적이고 직관적으로 표현된 동의수세보원의 형태적 묘사를 정량화하여 정리하고, 이 자료를 체질진단의 근거자료로 삼고자 하는 연구의 일환으로 먼저 두안부(頭顔部)의 형태를 태음인 소음인 소양인 별로 그 형상적 특징을 찾아내고자 하였다. 2. 방법 : 1995년 7월부터 1995년 12월까지 경희의료원 부속한방병원 외래환자 및 직원을 대상으로 설문지 및 임상적 치료 경과를 통하여 체질적 경향성이 뚜렷한 대상자를 선별하고 동일촬영 조건을 통하여 얻은 얼굴 사진 중 형태특이자를 제외한 170례의 고경(전두고외 26항목) 방사경(두최대장외 22항목) 및 폭경(안최대폭외 18항목)등 총 69항목을 측정한 후 이를 분석하여 체질별 상이점을 도출하였다. 3. 결과 : 체질별 두면부의 형태학적인 특징을 수치화하여 설명할 수 있게 되었고, 나아가 직관적이고 전일적인 형태를 구체화시킬 수 있는 특징을 도출할 수 있었다. 4. 결론 : 이상의 결과를 이용하여 체질별 각 부분의 형태를 계량화하여 비교 설명하고, 이를 이용하여 체질판별공식을 만들었다.