• 대한핵의학회지
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• 제7권1호
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• pp.15-29
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• 1973

To attain a simple and reliable method of evaluating the thyroid function the reliability of the clinical manifestation and the conventional thyroid function tests in diagnosing the hyperthyroidism was studied. The subjects included 184 patients with hyperthyroidism and 66 cases with euthyroidism, who were treated at the Thyroid Clinic, Seoul National University Hospital, from July 1971 through August 1972. The observed results were as follows: 1. In the cases of hyperthyroidism, 19% of the patients were male and 81% female; in the cases of euthyroidism, 7.6% of the patients were male and 92.4% female. The majority of the patients were in 2nd to 4th decades of their lives. 2. There were objective signs clearly manifested in hyperthyroidism which were rare or absent in the euthyroid state. These clinical signs included wide pulse pressure, tachycardia, systolic murmur, exophthalmos, tremor, and warm skin. In the hyperthyroid state 91.3% of the cases manifested two or more of the above signs, whereas in the euthyroid state no patients manifested any two of the above signs. 3. The most frequent complaints of the patients with thyroid disease were palpitation, weight loss, increased appetite, heat intolerance, perspiration, hunger feeling; nervousness, exertional dyspnea, etc. There was no clear difference in the incidence of the symptoms between hyperthyroidism and euthyroidism. 4. In the diagnosis of hyperthyroidism, the reliability of thyroid ?unction tests was as follows; $T_7$ was 92.4% reliable, $^{125}IT_3$ resin uptake rate 91.6% reliable, $^{131}I$ thyroid uptake rate in 24 hrs. 89.4% reliable, serum $T_4$ level 85.9% reliable and BMR 75.5% reliable. Therefore the careful observation of the clinical manifestation of the disease is a simple and reliable way of making a correct diagnosis of either hyperthyroidism or euthyroidism. 5. In hyperthyroidism there shows no correlationship between the results of the thyroid function test and clinical signs but a high BMR was associated with both tachycardia and systolic murmur.

• 한국통신학회논문지
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• 제36권8B호
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• pp.971-978
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• 2011

한의학의 진단 이론 중에는 얼굴의 형태 및 색상을 보고 인체 장기의 상태를 판단하는 방법이 있다. 즉, 얼굴을 통해 인체 장기의 이상 유무를 판단함으로써 건강 상태를 진단하는 행위로 이를 활용한 의료 서비스가 발전, 적용되고 있다. 따라서 본 논문에서는 한의학적 진단 이론을 지반으로 간 기능 상태와 관련된 얼굴 영역의 왼뺨, 흰 눈동자를 분류하고 알코올이 누적됨에 따라 변화되는 색상 분석을 수행하였다. 이를 위해 얼굴 영상에서 왼뺨, 흰 눈동자 영역을 추출하고 Lab 디지털 색체계를 적용하여 알코올 누적 단계에 따라 왼뺨 및 흰 눈동자 영역의 색상이 변화되는 패턴을 분석하고 이를 기반으로 간 기능과의 상관성을 의학적으로 분석하는 연구를 수행하였다.

• 기술경영경제학회:학술대회논문집
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• 기술경영경제학회 1996년도 제10회 동계학술발표회 논문집
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• pp.241-264
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• 1996

This article introduces the five functions of the national innovation system (NIS). As the national innovation system is a kind of social systems in the national level, the five generic functions of open system-production boundary spanning, maintenance, adaptation management functions-are applied to the NIS. The production function is the primary process, which produces innovative products and services of the NIS. The boundary spanning function is the function of procuring the input and disposing the innovation output or aiding in these process. Experienced R&D human resources, R&D funds, technology etc. belong to the input of the NIS. The maintenance function is responsible for the smooth operation and upkeep of the system in terms of various conditions. The adaptive function is to help the system change and adapt, scan the environment for problems, opportunities, and technological developments. It faces outward for the survival of the system from the long-term view. The management function carries out planning and controlling the overall activities for the other four functions in order to run the system. Finally it discuses implications for the diagnosis and the decision making process of S&T policy.

• The Journal of Korean Physical Therapy
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• 제14권4호
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• pp.367-384
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• 2002

Cerebral palsy refers to the neuromuscular deficit caused by nonprogressive defect or lesion in single or multiple locations in the immature brain resulting in Impaired motor function and sensory integrity. The pathophysiological events may occur during the prenatal intrapartum, perinatal, or early postnatal period. Cerebral palsy is the most common condition and it poses a challenge to practitioners due to the large variation in prognosis for motor function of children with this diagnosis. The objectives of this article are review to pathological and psychological factors of cerebral palsy and upper extremity function. Upper extremity and hand function are most important in activity of daily living in cerebral palsy This article hope to give the information for application in many therapists.

• Annals of Clinical Neurophysiology
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• 제10권1호
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• pp.29-32
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• 2008

Although various criteria on the diagnosis of diabetic neuropathy are applied from trial to trial, being tailored in concert with its purpose, the utmost evidences of the diagnosis are subjective symptoms and objective signs of neurologic deficit. The application and interpretation of auxiliary electrophysiological test including nerve conduction study (NCS) should be made on the context of clinical pictures. The evaluation of the functions of small, thinly myelinated or unmyelinated nerve fibers has been increasingly stressed recently with the advent of newer techniques, e.g., measurement of intraepidermal fiber density, quantitative sensory testing, and autonomic function test. And the studies with those techniques have shed light to the nature of the evolution of diabetic neuropathy. The practical application of these techniques to the diagnosis of diabetic neuropathy in the individual patients, however, should be made cautiously due to several shortcomings: limited accessibility, wide overlapping zone between norm and abnormality with resultant unsatisfactory sensitivity and specificity, difficulty in performing subsequent tests, unproven quantitative correlation with clinical deficit, and invasiveness of some technique. NCS, as an extension of clinical examination, is still the most reliable electrophysiological test in evaluating neuropathy and gives the invaluable information about the nature of neuropathy, whereas the newer techniques need more refinement of the procedure and interpretation, and the accumulation of large scaled data of application to be considered as established diagnostic tools of peripheral neuropathy.

• 대한한의학원전학회지
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• 제32권4호
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• pp.47-55
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• 2019

Objectives : The purpose of this study is to research the relations between the Renying pulse and Qikou pulse diagnosis(人迎氣口脈診法) and the Chong vessel(衝脈) based on Yin and Yang(陰陽). Methods : We set up locations of the Renying pulse and the Qikou pulse as ST9(Renying pulse) and LU9(Qikou pulse) respectively. Several medical texts and papers were examined from the ancient to modern periods, in which the relations between the Renying and Qikou pulse diagnosis(人迎氣口脈診法) and the Chong vessel(衝脈) were analyzed based on Yin and Yang(陰陽). Results & Conclusions : The Chong vessel(衝脈) goes around the whole body and its dysfuction can be determined at pulsating sites. Also the Chong vessel(衝脈) supplies Source Qi(原氣) to the Stomach where it generates Nutrient Qi(營氣) and Defense Qi (衛氣). Due to the Lung's function that balances Nutrient Qi(營氣) and Defense Qi(衛氣), the balance between Yin and Yang is accomplished. This Yin-Yang balance can be confirmed through pulse diagnosis of the Renying pulse and Qikou pulse(人迎氣口脈診法).

• International journal of advanced smart convergence
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• 제9권4호
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• pp.62-73
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• 2020

In this paper, we present electronic acupuncture needles we have developed using intelligence technology based on Bluetooth in order to allow anyone to simply receive customized remote diagnosis and treatment by clicking on the menu of the smartphone regardless of time and place. In order to determine the health condition and disease of patients, we have developed a software and a hardware of electronic acupuncture needles, operating on Bluetooth which transmits biometric data to oriental medical doctors using the functions of automatically determining pulse diagnosis, tongue diagnosis, and oxygen saturation; the functions are most commonly used in herbal treatment. In addition, using fuzzy logic and reasoning based on smartphones, we present in this paper an algorithm and the results of completion of hardware implementation for electronic acupuncture needles, appropriate for the body conditions of patients; the algorithm and the hardware implementation are for a treatment time duration by electronic acupuncture needles, an automatic determinations of pulse diagnosis, tongue diagnosis, and oxygen saturation, a function implementation for automatic display of acupuncture point, and a strength adjustment of electronic acupuncture needles. As a result of our simulation, we have shown that the treatment of patients, performed using an Electronic Acupuncture Needles based on intelligence, is more efficient compared to the treatment that was performed before.

• 대한의생명과학회지
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• 제28권1호
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• pp.1-8
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• 2022

Total joint arthroplasty is a successful joint replacement treatment that improves joint function and overall quality of life and provides pain relief. However, the prevalence of periprosthetic joint infection (PJI) has become prevalent with the rise in the incidence of arthroplasty surgery. PJI occurs rarely following arthroplasty however presents with serious complications, including high morbidity. The identification of causative microorganisms is essential for the treatment of PJI. Managing PJI requires complex treatment strategies, including long-term antibacterial treatment, and significant medical costs can be incurred. The American Academy of Orthopedic Surgeons, the Centers for Disease Control and Prevention, and Surgical Care Improvement Project guidelines recommend that prophylactic antibiotics such as first-generation cephalosporins be infused completely 1 hour before surgical incision. However, these preventative antibiotics are very limited, therefore risk factors must be identified to diagnosis and treat patients effectively. Moreover, determining antimicrobial susceptibility during artificial joint surgery and choosing the most appropriate treatment strategy following an accurate diagnosis of microbial infections are essential. In the present review, we describe the management, including the etiology, diagnosis, and classification of PJI, and approaches to its diagnosis using the available novel molecular diagnostic methods.

• Nuclear Engineering and Technology
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• 제55권3호
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• pp.827-838
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• 2023

Centrifugal pump is a key part of nuclear power plant systems, and its health status is critical to the safety and reliability of nuclear power plants. Therefore, fault diagnosis is required for centrifugal pump. Traditional fault diagnosis methods have difficulty extracting fault features from nonlinear and non-stationary signals, resulting in low diagnostic accuracy. In this paper, a new fault diagnosis method is proposed based on the improved particle swarm optimization (IPSO) algorithm-based variational modal decomposition (VMD) and relevance vector machine (RVM). Firstly, a simulation test bench for rotor faults is built, in which vibration displacement signals of the rotor are also collected by eddy current sensors. Then, the improved particle swarm algorithm is used to optimize the VMD to achieve adaptive decomposition of vibration displacement signals. Meanwhile, a screening criterion based on the minimum Kullback-Leibler (K-L) divergence value is established to extract the primary intrinsic modal function (IMF) component. Eventually, the factors are obtained from the primary IMF component to form a fault feature vector, and fault patterns are recognized using the RVM model. The results show that the extraction of the fault information and fault diagnosis classification have been improved, and the average accuracy could reach 97.87%.

• 한국지능시스템학회논문지
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• 제25권1호
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• pp.57-62
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• 2015

본 논문에서는 전기설비들의 신속하고 효율적인 진단을 위해 차 영상을 통한 퍼지 추론 기반 열화 진단 시스템을 설계한다. 전기 기기의 열화 진단이 시작 되면 처음 정상 상태의 온도와 비교하여 이상 영역을 검출한다. 검출된 영역은 퍼지 추론 알고리즘을 사용하여 열화를 진단한다. 퍼지 추론 알고리즘에서, 퍼지 규칙은 If-then형식으로 정의되고, look-up 테이블로 규칙을 표현한다. 온도와 온도의 변화량을 입력 변수로 사용한다. 입력변수의 퍼지수를 표현하기 위해 삼각형 멤버쉽 함수를 사용하였으며, 출력변수에는 singleton 멤버쉽 함수를 사용하였다. 최종 출력은 퍼지 추론 방법의 무게 중심법을 사용하여 계산한다. 전기 설비로부터 취득한 실험 데이터는 제안된 시스템의 성능을 평가하기 위하 사용한다.