• 제목/요약/키워드: In-process diagnosis

검색결과 1,577건 처리시간 0.029초

Coronoid Process Hyperplasia: A Rare Case of Restricted Mouth Opening Masquerading as Temporomandibular Disorder

  • Juhyun Cha;Jin Woo Chung
    • Journal of Oral Medicine and Pain
    • /
    • 제48권3호
    • /
    • pp.112-117
    • /
    • 2023
  • Coronoid process hyperplasia (CPH) of the mandible is a rare condition in which abnormal elongation of the coronoid process leads to chronic mandibular hypomobility. CPH causes impingement or impedance of the coronoid process on the inner surface of the frontal part of the zygomatic bone during mouth opening. The lack of significant symptoms makes the diagnosis difficult. Its etiology remains inconclusive despite several theories being suggested. In this report, three reviewed cases are presented. All three patients visited our clinic with limited mouth opening as the chief complaint. Standard clinical and radiographic examinations were conducted under the initial impression of temporomandibular disorders (TMDs), and restricted jaw movements were confirmed in all cases. The absence of improved signs and symptoms following conservative treatment for TMDs or the indeterminate plain radiographs required the attending clinicians to consider three-dimensional imagery. Computed tomography revealed bilateral coronoid hyperplasia in all cases and impingement on the zygomatic bone in two of the three cases. After concluding that this condition caused the patients' limited mouth opening, the patients were referred to the Department of Oral and Maxillofacial Surgery for possible bilateral coronoidectomy or coronoidotomy. CPH usually presents no symptoms apart from a progressive reduction of mouth opening over time. Diagnosis is often delayed, and patients may undergo unnecessary treatment procedures. Clinicians should be aware of this condition and exercise caution in the differential diagnosis of patients with chronic mandibular hypomobility.

『찬도방론맥결집성』의 장원소 「진맥입식해」 연구 (A Study on the 「Zhenmairushijie」 by Zhang Yuansu in 『Chandobangronmaekkyulgipseong』)

  • 장우창
    • 대한한의학원전학회지
    • /
    • 제32권1호
    • /
    • pp.1-27
    • /
    • 2019
  • Objectives : By studying the contents of Zhang Yuansu's "Zhenmairushijie", which are introductory remarks of "Chandobangronmaekkyulgipseong", this study attempts to clarify the academic meaning expressed in it and consider his real significance. Methods : First, based on previous studies on Zhang Yuansu and "Wangshuhemaijue", this study divides the contents of "Zhenmairushijie" into 4 chapters and read out the original text. Next, based on Zhang Yuansu's notes and other writings on the original text, this study examines contents in detail. Finally, based on the discussion, this study examines the current significance of academic thoughts expressed in Zhang Yuansu's "Zhenmairushijie". Results & Conclusions : "Zhenmairushijie" emphasizes the combination of nervation and Byeonggi in the process of feeling the pulse for diagnosis, the combination of Byeonggi and Yongyak to declare that the feeling of the pulse for diagnosis is the principle of differential diagnosis. The combination principle of nervation-Byeonggi can be found in comprehensive pulse methods of "Nanjing", and the combination of Byeonggi-Yongyak should follow Ohaeng's Bubuheoshilsajeongbosa principle. Pulse methods of "Wangshuhemaijue" integrated Byeonggi expressed in Uigyeong and Byeonggi in Gyeongbang in the process of the feeling of the pulse for diagnosis to present the principle of diagnosis to perform Byeongjeungronchi. Therefore, "feeling the pulse for diagnosis ipsik" is not only an introductory remark of feeling the pulse for diagnosis, but an comprehensive remark of whole diagnosis as well. It is an introductory remark of the entire medical field due to the nature of oriental medicine which emphasizes diagnosis.

Behavior of Residual Charges in Water-tree Degraded XLPE Sheets and Cable

  • Ebinuma, Yasumitsu;Masui, Noriaki
    • Transactions on Electrical and Electronic Materials
    • /
    • 제7권5호
    • /
    • pp.224-229
    • /
    • 2006
  • Many studies have been done on the application of residual charge measurement in cable degradation diagnosis. In this paper, the behavior of residual charges measured with water-tree degraded XLPE sheets and cable are discussed. At charge injection process, the charge is injected by applying dc voltage as a conventional method, suddenly cut-off ac voltage or impulse voltage. Therefore the residual charge is influenced by the applying process. At charge release process, transient dc current flows when applying ac high voltage and also ac high voltage superimposed to dc low voltage. From the results, new diagnosis method is suggested.

문서 라우팅 기법을 이용한 간호진단 과정에서의 정보접근 (Applying document routing mode of information access in nursing diagnosis process)

  • 백우진
    • 한국정보관리학회:학술대회논문집
    • /
    • 한국정보관리학회 2006년도 제13회 학술대회 논문집
    • /
    • pp.163-168
    • /
    • 2006
  • Nursing diagnosis process is described as nurses assessing the patients' conditions by applying reasoning and looking for patterns, which fit the defining characteristics of one or more diagnoses. This process is similar to using a typical document retrieval system if we consider the patients' conditions as queries, nursing diagnoses as documents, and the defining characteristics as index terms of the documents. However, there is a small fixed number of nursing diagnoses and infinite number of patients' conditions in a typical hospital setting. This state is more suitable to applying document routing mode of information access, which is defined as a number of archived profiles, compared to individual documents. In this paper, we describe a ROUting-based Nursing Diagnosis (ROUND) system and its Natural Language Processing-based query processing component, which converts the defining characteristics of nursing diagnoses into query representations.

  • PDF

SVM을 이용한 TFT-LCD 모듈공정의 불량 진단 방안 (A Fault Diagnosis Methodology for Module Process of TFT-LCD Manufacture Using Support Vector Machines)

  • 신현준
    • 반도체디스플레이기술학회지
    • /
    • 제9권4호
    • /
    • pp.93-97
    • /
    • 2010
  • Fast incipient fault diagnosis is becoming one of the key requirements for economical and optimal process operation management in high-tech industries. Artificial neural networks have been used to detect faults for a number of years and shown to be highly successful in this application area. This paper presents a novel test technique for fault detection and classification for module process of TFT-LCD manufacture using support vector machines (SVMs). In order to evaluate SVMs, this paper examines the performance of the proposed method by comparing it with that of multilayer perception, one of the artificial neural network techniques, based on real benchmarking data.

System Identification Method를 이용한 DC/DC 컨버터 상태진단 (A Operating Status Diagnosis of DC/DC Converter by System Identification)

  • 김철우;김태진
    • 전기학회논문지
    • /
    • 제56권4호
    • /
    • pp.724-729
    • /
    • 2007
  • In this paper, we propose a new diagnosis method of DC/DC converter aging. The method is based on variations of the parasitic resistor for the aging process. We apply an on-line diagnosis of the DC/DC converter because the observation is not a device, but a system. This study proposes a method of DC/DC converter diagnosis by analyzing the variations of model on the variations of parasitic resistor.

임베디드기반 자동고장진단 시스템 구축에 대한 연구 (A Study On The Embedded Fault Diagnosis System Implementation)

  • 김한규;장주수
    • 한국생산제조학회지
    • /
    • 제22권2호
    • /
    • pp.287-291
    • /
    • 2013
  • Fault Diagnosis is a process of detecting and isolating faults in a system. On demanding for safety and high reliability systems make it important for some reasons such as economical and environmental incentives. Especially embedded technology and IT technology combined with precise sensing techniques has been doing well developed and applied to fault diagnosis and prognosis in industrial systems like as automotive, ship, heavy industry and aerospace as well. This paper, as an empirical application of diesel engine, presents a method how to get raw data from physical systems, what to consider for successful implementation and which theoretic mathematical models should be applied. In a sense of system level Adaptive Filtering (we call Modified Kalman Filter) and a unit of part level Hidden Markov Process was developed and applied.

유도초음파의 시간.역전 현상을 활용한 구조손상 진단기법 (Structural Damage Diagnosis Method by Using the Time-Reversal Property of Guided Waves)

  • 이우식;최정식
    • 한국정밀공학회지
    • /
    • 제27권6호
    • /
    • pp.64-74
    • /
    • 2010
  • This paper proposes a new TR-based baseline-free SHM technique in which the time-reversal (TR) property of the guided Lamb waves is utilized. The new TR-based SHM technique has two distinct features when compared with the other TR-based SHM techniques: (1) The backward TR process commonly conducted by the measurement is replaced by the computation-based process; (2) In place of the comparison method, the TOF information of the damage signal extracted from the reconstructed signal is used for the damage diagnosis in conjunction with the imaging method which enables us to represent the damage as an image. The proposed TR-based SHM technique is then validated through the damage diagnosis experiment for an aluminum plate with a damage at different locations.

정유량 막여과 파울링 모델을 이용한 막여과 정수 플랜트 공정 진단 기법 (A process diagnosis method for membrane water treatment plant using a constant flux membrane fouling model)

  • 김수한
    • 상하수도학회지
    • /
    • 제27권1호
    • /
    • pp.139-146
    • /
    • 2013
  • A process diagnosis method for membrane water treatment plant was developed using a constant flux membrane fouling model. This diagnosis method can be applied to a real-field membrane-based water treatment plant as an early alarming system for membrane fouling. The constant flux membrane fouling model was based on the simplest equation form to describe change in trans-membrane pressure (TMP) during the filtration cycle from a literature. The model was verified using a pilot-scale microfiltraton (MF) plant with two commercial MF membrane modules (72 m2 of membrane area). The predicted TMP data were produced using the model, where the modeling parameters were obtained by the least square method using the early plant data and modeling equations. The diagnosis was carried out by comparing the predicted TMP data (as baseline) and real plant data. As a result of the case study, the diagnsis method worked pretty well to predict the early points where fouling started to occur.

장력신호의 주파수 해석을 이용한 롤 형상 이상 진단에 관한 연구 (A Study on the Fault Diagnosis of Roller-Shape Using Frequency-Domain Analysis of Tension Signals)

  • 신기현
    • 한국정밀공학회지
    • /
    • 제17권12호
    • /
    • pp.107-114
    • /
    • 2000
  • Rollers and rolls in the continuous process systems are noes of key components that determine the quality of web products. The condition of rollers and rolls(ex. eccentricity wear) should be consistently monitored in order to maintain the process conditions (ex. tension, edge position) within a required specification. In this paper, a new diagnosis technique is suggested to detect the defect of rollers/rolls (ex. eccentricity, wear) based on frequency domain analysis of web tension signal. The kernel of this technique is to use the spectrum amplitude of tension signal which allows to identify the fault rollers/rolls and to also diagnose the degree of fault in corresponding rollers and rolls. The experimental results proved that the suggested diagnosis technique can be successfully used to identify the defect rollers and rolls as well as to diagnose the degree of the defect of those rollers. The suggested technique can be applied to monitor and diagnose the shape of rollers and rolls in various multi-span web transport systems.

  • PDF