• Title/Summary/Keyword: Diagnostic system

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Development of Molecular Diagnostic Innovation System in India: Role of Scientific Institutions

  • Singh, Nidhi
    • Asian Journal of Innovation and Policy
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    • v.11 no.1
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    • pp.87-109
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    • 2022
  • The study attempts to examine the system-building activities of scientific institutions in developing the Molecular Diagnostic (MDs) Innovation System in India. Scientific Institutions are the precursor of any technological development with their capabilities in generating new ideas. MDs are advanced and accurate diagnostic technology with considerable scope to serve the diagnostic needs and requirements of the healthcare system. We adopted a System framework and analyzed the development of MDs in terms of the Technological Innovation System (TIS) functions, and the systematic challenges are assessed through the System Failure Framework (SFF). Based on the secondary and primary survey of prominent science base actors, the study finds that the role of government is crucial for facilitating technological development within a science base through the mobilization of resources. In India, the MDs technological development gained significant momentum over the last decade with the development of specialized human resources and dedicated research institutes. However, we do find that the innovative capabilities in attaining need-based TIS are sub-optimal owning to the specific diagnostic needs of highly burdened diseases in the society. The system analysis reveals that the TIS functions are underperforming because of the absence of a well-defined funding mechanism and goal-oriented targeted policy regime of the government. Since MDs have a transformative effect on the present healthcare system, we argue that the government has to address the system-based challenges and issues for developing a need-based technological innovation system for MDs in the country.

Development of a Vibration Diagnostic System for Steam Turbine Generators (스팀터빈 발전기 진동진단 시스템 개발)

  • Lee, An-Sung;Hong, Seong-Wook;Kim, Ho-Jong;Lee, Hyun
    • Journal of KSNVE
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    • v.5 no.4
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    • pp.543-553
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    • 1995
  • Modern steam turbine generators are being built as a higher power and larger system, experiencing more frequent starts and stops of operation due to a constant change of power demands. Hence, they are inevitably more vulnerable to various vibrations, and more often exposed to the danger of sudden vibration accidents than ever before. Even under the circumstances, in order to secure the system reliability of steampower plants and there by to supply safely the public electricity, it is important to prevent a sudden vibration accident in one hand and even when it happens, to raise an operating efficiency of the plants throught swift and precise treatments in the other. In this study, an interactive vibration diagnostic system has been developed to make the on-site vibration diagnosis of steam turbine generators possible and convenient, utilizing a note-book PC. For this purpose, at first the principal vibration phenomena, such as various unbalance and unstable vibrations as well as rubbing, misalignment, and shaft crack vibrations, have been systematically classified as grouped parameters of vibration frequencies, amplitudes, phases, rotating speeds at the time of accident, and operating conditions or condition changes. A new complex vibration diagnostic table has been constructed from the causal relations between the characteristic parameters and the principal vibration phenomena. Then, the diagnostic system has been developed to screen and issue the corresponding vibration phenomena by assigning to each user-selected combination of characteristic parameters a unique characteristic vector and comparing this vector with a diagnostic vector of each vibration phenomenon based on the constructed diagnostic table. Moreover, the diagnostic system has a logic whose diagnosis may be performed successfully by inputing only some of the corresponding characteristic parameters without having to input all the parameters. The developed diagnostic system has been applied to perform the diagnosis of several real cases of steam turbine vibration accidents. And the results have been quite satisfactory.

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A Study on the Clinical Use of 7-zone-diagnostic System(1) Centering around VEGA-DFM 722 and ABR-2000- (7구역진단기의 임상응용에 대한 고찰(1) -VEGA-DFM 722 및 ABR-2000 중심으로-)

  • Song, Beom-Yong
    • Journal of Acupuncture Research
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    • v.23 no.3
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    • pp.231-239
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    • 2006
  • Functional medicine is a system which utilizes certain investigative and treatment methods that are primarily oriented toward the recognition of functional disorder. Functional disorders take place on an energetic plane. This plane is not capturable using our regular investigatory techniques, such as X -ray. ultrasound, computer tomography and laboratory analyses. The 7-zone-diagnostic system(VEGA-DFM 722 and ABR-2000, etc) is a diagnostic device Which applies pulse signals to predetermined bodily locations. Applying alternating positive and negative stress to tissues with positive and negative pulses first manifests itself as negative and positive wave forms. The skin has many functions as an organ. It is the organism's interlace with the outsider world. Hence, the manner in which the skin reacts to external stimuli reflects the current state of the organism(as meridian systems). This system make a diagnosis of functional disorder or some typical organic diseases include stress of the mind or the body, and the energetic situation, reserves. We are known a disorder or disease throw the result chart. This result chart contain disorder flow wave forms and some valuable diagnostic hints (letters ; S, OM, RA, etc). In spite of this 7-zone-diagnostic system that is applied plentifully in the clinical application, there is not a statistics which is suitable. Therefor we must carry out many various research in the future.

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Two Case Reports treated by Mahwang-Haeangin-Gamcho-Seokgo-tang based on Shanghanlun Provisions (『상한론(傷寒論)』 변병진단체계(辨病診斷體系)에 근거하여 마황행인감초석고탕(麻黃杏仁甘草石膏湯) 투여 후 호전된 증례 2례 고찰)

  • Ha, Hyun-yee;Yun, Hyo-Joong;Lee, Sung-jun
    • 대한상한금궤의학회지
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    • v.8 no.1
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    • pp.67-85
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    • 2016
  • Objectives: In this paper, two cases which showed the meaningful results on the patients' chief complaints were analyzed. The patients were treated with the Mahwang-Haengin-Gamcho-seokgo-tang herbal medication based on Shanghanlun disease pattern identification diagnostic system. Methods: The patients were diagnosed based on Shanghanlun, disease pattern identification diagnostic system. In case 1, the change of menstruation cycle was noted and pre-menstrual discomforts were measured with Menstrual Distress Questionnaire(MDQ). In case 2, Quality of life questionnaire for adult Korean asthmatics (QLQAKA) was used to estimate the quality of the patient's life. Results: All the symptoms were improved after the Mahwang-Haengin-Gamcho-seokgotang treatment. In case 1, the menstruation cycle decreased to 30 days average. MDQ score decreased 143 to 103. In case 2, the change of the QLQAKA score as 1.647 average point is considered as a meaningful improvement. Conclusion: With great difference to a 'Symptom-Medicine' diagnostic system, the disease pattern identification diagnostic system seeks the pathologic pattern through the patient's whole life. More studies and multiple cases based on the diagnostic system are needed to prove this possibility later.

Design and Implementation of a Web-based Diagnostic Evaluation System for Efficient Teaching Method (교수방법의 효율화를 위한 웹 기반 진단평가 시스템 설계 및 구현)

  • You, Sun-Kyoung;Lee, Mee-Jeong
    • The Journal of Korean Association of Computer Education
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    • v.6 no.3
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    • pp.197-205
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    • 2003
  • For efficient teaching method a teacher should understand the current level of learners. Diagnostic evaluation is generally used to grasp a knowledge level of learners. However, it is not easy to take a diagnostic examination in every class because of time limitation. Accordingly, we propose a web based diagnostic evaluation system for efficient teaching method. In the proposed system, it is possible for teachers to feed diagnostic evaluation questions on the web at any time and for learners to take an online diagnostic examination without space and time limitation. In addition, the proposed system automatically grades the diagnostic evaluation and provides a teacher with various statistical data that can be a criterion to decide a proper teaching level.

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The Diagnostic Value of Brain Scanning in the Diseases of the Central Nervous System (중추신경계질환(中樞神經系疾患)의 뇌주사(腦走査)에 의(依)한 진단적(診斷的) 가치(價値))

  • Kim, Kwang-Won;Lee, Myung-Chul;Koh, Chang-Soon;Lee, Mun-Ho;Chang, Kee-Hyun;Han, Man-Chung;Son, Hyo-Chung;Cho, Byung-Kyu;Choi, Kil-Su
    • The Korean Journal of Nuclear Medicine
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    • v.8 no.1_2
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    • pp.39-47
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    • 1974
  • The purpose of this study is to evalute the diagnostic value of the brain scanning and compare the diagnostic accuracy between the scan and carotid angiography. 109 cases which are proved by specific method to each disease, are analized to evalute the diagnostic value of the brain scanning. The 70 cases among the proven 109 case are performed both the scanning and the arteriography and analized to compare the accuracy between the scanning and the arteriography. The results are as follows; 1. The diagnostic accuracy of the brain scanning in the diseases of the central nervous system is 64.2%. 2. The diagnostic accuracy of the brain scanning in the brain tumor is 88%, especially brain abscess. glioma, glioblastoma multiforme, menirgioma and metastic tumor show high positive rate. 3. The diagnostic accuracy in the disease of the brain vessels is 54 %. 4. The comparison of the diagnostic value between the scanning and the arteriography is as follows; 1) The diagnostic value in all diseases of the central nervous system is nearly equal. 2) The diagnostic accuracy in the intracranial tumor is slightly higher in the brain scanning (90.9%) than in the arteriography (81.8%). 3) The diagnostic accuracy in the disease of the brain vessel is higher in the arteriography (77.3%) than in the scanning (54.5%). 5) The diagnostic value when combining the scanning and the arteriography, is 83% in the all central nervous system-lesions, 97% in the cranial tumor and 81.8% in the disease of the central nervous system-vessel. The brain scanning is simple and safe procedure, and moreover has excellent diagnostic value in the diagnosis of the central nervous system lesion.

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Development of Diagnostic Expert System for Rotating Machinery with Journal Bearing-Research on the Diagnosis of the Nonlinear Characteristics of Rotor System (저어널 베어링으로 지지된 회전축의 이상상태 진단을 위한 진단 전문가 시스템의 개발-로타시스템의 비선형 특성 진단을 위한 연구)

  • 유송민;김영진;박상신
    • Tribology and Lubricants
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    • v.17 no.2
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    • pp.153-161
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    • 2001
  • The development of techniques in diagnosing the state of the system is one of the essential tools in establishing the automation and unmanned manufacturing system for the realization of CIM/FMS in the fields. In this paper, we developed various diagnostic schemes for the journal bearing supported rotor system. Up to now, vibration of the shaft, measurement of the displacement and the temperature have been used for diagnostic tools, however, the statistical features only could not differentiate the state from states. Thus, we identified the sensor data f3r the steady state in the signal processing and then applied the fuzzy c-mean technology to cope with the nonlinear characteristics of the system. This will, in return, establish a possible diagnostic system for the rotor system in the fields.

Data Acquisition System Applying TMO for GIS Preventive Diagnostic System (GIS 예방진단시스템을 위한 TMO 응용 데이터 수집 시스템)

  • Kim, Tae-Wan;Kim, Yun-Gwan;Jang, Cheon-Hyeon
    • The KIPS Transactions:PartA
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    • v.16A no.6
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    • pp.481-488
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    • 2009
  • GIS is used to isolate large power electrical equipment using SF6 gas. While GIS has simple structure, it has few break down, relatively high reliability. But it is hard to check up faults for reason of pressure. Faults of GIS should have a ripple effect on community and be hard to recovery. Consequently, GIS imports a preventive diagnostic system to find internal faults in advance. It is most important that reliability on the GIS preventive diagnostic system, because it estimates abnormality of system by analysis result of collected data. But, exist system which used central data management is low efficiency, and hard to guarantee timeliness and accuracy of data. To guarantee timeliness and accuracy, the GIS preventive diagnostic system needs accordingly to use a real-time middleware. So, in this paper, to improve reliability of the GIS preventive diagnostic system, we use a middleware based on TMO for guaranteeing timeliness of real-time distributed computing. And we propose an improved GIS preventive diagnostic system applying data acquisition, monitoring and control methods based on the TMO model. The presented system uses the Communication Control Unit(CCU) for distributed data handling which is supported by TMO. CCU can improve performance of the GIS preventive diagnostic system by guaranteeing timeliness of data handling process and increasing reliability of data through the TMO middleware. And, it has designed to take full charge of overload on a data acquisition task had been processed in an exist server. So, it could reduce overload of the server and apply distribution environment from now. Therefore, the proposed system can improve performance and reliability of the GIS preventive diagnostic system and contribute to stable operation of GIS.

A New Radiation-Shielding Device for Restraining Veterinary Patients

  • Songyi Kim;Minju Lee;Miju Oh;Yooyoung Lee;Jiyoung Ban;Jiwoon Park;Sojin Kim;Uhjin Kim;Jaepung Han;Dongwoo Chang
    • Journal of Veterinary Clinics
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    • v.40 no.6
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    • pp.429-437
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    • 2023
  • In veterinary medicine, most radiographic images are obtained by restraining patients, inevitably exposing the restrainer to secondary scattered radiation. Radiation exposure can result in stochastic reactions such as cancer and genetic effects, as well as deterministic reactions such as skin burns, cataracts, and bone marrow suppression. Radiation-shielding equipment, including aprons, thyroid shields, eyewear, and gloves, can reduce radiation exposure. However, the risk of radiation exposure to the upper arms, face, and back remains, and lead aprons and thyroid shields are heavy, restricting movement. We designed a new radiation-shielding system and compared its shielding ability with those of conventional radiation-shielding systems. We hypothesized that the new shielding system would have a wider radiation-shielding range and similar shielding ability. The radiation exposure dose differed significantly between the conventional and new shielding systems in the forehead, chin, and bilateral upper arm areas (p < 0.001). When both systems were used together, the radiation-shielding ability was better than when only one system was used at all anatomical locations (p < 0.01). This study suggests that the new radiation-shielding system is essential and convenient for veterinary radiation workers because it is a step closer to radiation safety in veterinary radiography.

Development of a Knowledge Representation Scheme and Diagnosis Mechanism for Heterogeneous Distributed Fault Diagnosis (이종분산 고장 진단을 위한 지식표현 방법 및 진단 방법의 개발)

  • 안영애;박종희
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.32B no.12
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    • pp.1687-1696
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    • 1995
  • An integrated fault diagnosis system for heterogeneous manufacturing environments is developed. This system has a contrast with existing diagnosis systems in the respect that they are mostly for diagnosing faults on individual machines. In addition to the usual (e.g., audio, electrical) diagnostic signals, the characteristics of products from the machines are considered as the unifying diagnostic parameters among heterogeneous machines in the diagnosis. The system is composed of a knowledge representation scheme and a diagnostic query processing mechanism. Its knowledge representation scheme allows the diagnostic knowledges from heterogeneous unit diagnostic systems to be uniformly expressed in terms of the causal relations among relevant data items. It is flexible in the sense that causes for one relation can be effects for another may be reflected on our knowledge representation scheme. The diagnosis mechanism is based on a probabilistic inferencing method. This probablistic diagnosis mechanism provides more general diagnosis than existing ones in that it accommodates multiple causes and takes complication among causes into account. These scheme and mechanism are applied to a typical example to demonstrate how our system works.

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