• 제목/요약/키워드: Omission Error

검색결과 65건 처리시간 0.025초

UHF 센서 위치 최적화로 부분방전 신호 검출 방법 (UHF Sensor Location Optimization for Partial Discharge Signals Detection Method)

  • 최문규;차한주
    • 전기학회논문지
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    • 제63권3호
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    • pp.409-413
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    • 2014
  • GIS partial discharge that occurred in the UHF band signal is effectively detected by the method to IEC60270 5pc the apparent minimum discharge can be detected over the GIS arrangement of the sensor interior and exterior of the UHF in accordance with the optimized position signal by considering the damping ratio is selected so that the signals can be obtained to be mounted. 362kV, 800kV GIS is installed on the internal and external sensors are UHF band signal attenuation is set by measuring the reference value, but the operation, 170kV case 362kV, 800kV on the basis of the measurement data and to be installed and operated. When 170kV per 1Bay by installing the built-in sensor 1 for detecting a partial discharge signal, But, GIS signal attenuation is large in the case of an internal partial discharge signal is not detected in some cases. Where the attenuation is great UHF signal of the sensor by increasing the quantity of partial discharge signals were acquired to allow relocation. The greater the spacing between the sensor and the sensor is applied simplifies the installation and reduces the cost in terms of maintenance of appropriate optimal position is calculated to detect the partial discharge signal is needed. Thus 170kV GIS signal power attenuation of a partial discharge by measuring the UHF sensor, and by relocating the proper position is calculated in accordance with the sensor signal decay rate and minimize the error of omission in detecting a partial discharge signal was optimized.

소아심장외과 중환자실에서의 실무의사소통 프로토콜이 수술 후 성과에 미치는 영향 (Practical Communication Strategies to Improve the Surgical Outcomes in a Pediatric Cardiac Intensive Care Unit)

  • 엄주연;이월숙
    • 간호행정학회지
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    • 제21권3호
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    • pp.243-253
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    • 2015
  • Purpose: The purpose of this study was to identify the impact of practical communication strategies (PCS) on the reduction of AEs (Adverse Events) in pediatric cardiac ICU (PCICU). Methods: Intra-operative findings and care plans were documented and shared between staff members on a daily basis from the day of operation to the day of general ward transfer. Incidence of AEs was investigated in all patients who were admitted to the PCICU and was compared with incidence of AEs one year after establishment of PCS. Results: The study population consisted of 216 patients in pre-PCS group and 156 patients in post-PCS group. Incidence of readmission decreased from 6.0% (13/216) in pre-PCS group to 0.6% (1/156) in post-PCS group (${\chi}^2=7.23$, p=.010). Incidence of other major complications decreased from 4.2% (9/216) to 0.6% (${\chi}^2=6.66$, p=.012). Minor AEs such as intervention omission, order error, and protocol misunderstanding were reduced from 23.3 cases per 100 patient-days to 7.5 cases per 100 patient-days (${\chi}^2=20.31$, p<.001). Conclusion: Handover protocol is an effective strategy to reduce AEs for critically ill patients after pediatric cardiac surgery. Efforts to develop effective communication strategies should be continued and outcome research about communication strategies for patient safety should be further studied.

주의력결핍과잉행동장애 아동과 자폐스펙트럼장애 아동에서 얼굴 표정 정서 인식과 구별의 차이 (Difference of Facial Emotion Recognition and Discrimination between Children with Attention-Deficit Hyperactivity Disorder and Autism Spectrum Disorder)

  • 이지선;강나리;김희정;곽영숙
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • 제27권3호
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    • pp.207-215
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    • 2016
  • Objectives: This study aimed to investigate the differences in the facial emotion recognition and discrimination ability between children with attention-deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD). Methods: Fifty-three children aged 7 to 11 years participated in this study. Among them, 43 were diagnosed with ADHD and 10 with ASD. The parents of the participants completed the Korean version of the Child Behavior Checklist, ADHD Rating Scale and Conner's scale. The participants completed the Korean Wechsler Intelligence Scale for Children-fourth edition and Advanced Test of Attention (ATA), Penn Emotion Recognition Task and Penn Emotion Discrimination Task. The group differences in the facial emotion recognition and discrimination ability were analyzed by using analysis of covariance for the purpose of controlling the visual omission error index of ATA. Results: The children with ADHD showed better recognition of happy and sad faces and less false positive neutral responses than those with ASD. Also, the children with ADHD recognized emotions better than those with ASD on female faces and in extreme facial expressions, but not on male faces or in mild facial expressions. We found no differences in the facial emotion discrimination between the children with ADHD and ASD. Conclusion: Our results suggest that children with ADHD recognize facial emotions better than children with ASD, but they still have deficits. Interventions which consider their different emotion recognition and discrimination abilities are needed.

Errors in Surgical Pathology Reports: a Study from a Major Center in Pakistan

  • Ahmad, Zubair;Idrees, Romana;Uddin, Nasir;Ahmed, Arsalan;Fatima, Saira
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권4호
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    • pp.1869-1874
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    • 2016
  • Background: Errors in surgical pathology diagnosis can have serious consequences for the patient. Since the final product of a surgical pathology lab is the report, errors can be picked by reviewing reports of cases. Aim: To determine the frequency and types of error in surgical pathology reports of cases signed out in 2014 in a laboratory in Karachi, Pakistan. Materials and Methods: All surgical pathology reports in which changes were made in the original report after sign out and an amended report was issued were included. Errors included: (1) misinterpretations; (2) missing critical information; (3) erroneous critical information; (4) misidentification; and (5) typographic errors. Results: Errors were identified in 210 cases (0.37%). These comprised 199 formalin fixed specimens and 11 frozen sections. The latter represented 3.8% of a total of 2,170 frozen sections. Of the 11 frozen section errors, 10 were misinterpretations. Of the 199 permanent specimens, 99 (49.7%) were misinterpretations, 65 (32.7%) belonged to missing critical information category, 8 (4%) belonged to erroneous critical information category, 8(4%) were misidentifications, 16(8%) were typographic errors while 3 cases (1.5%) were other errors. Most misinterpretations occurred in the gastro intestinal, liver and pancreato biliary tract (23.2%) and breast (13.1%). Another 87 cases were reviewed on the clinicians' request. However diagnosis after review remained the same as the original diagnosis. In 49 out of these (56.3%), additional workup was performed at the time of the review. Conclusions: Our findings were similar to other published studies. We need to develop documented procedures for timely review of cases to detect errors.

I-D-F곡선 유도 시 짧은 지속기간(20분, 30분, 40분, 50분) 강우자료 누락에 따른 강우강도 차이 고찰 (A Study on the Difference of Rainfall Intensity According to the Omission of Short-Term (20, 30, 40, 50 Minutes) Rainfall Data in Inducing I-D-F Curves)

  • 이희창;성기원
    • 대한토목학회논문집
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    • 제40권5호
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    • pp.465-475
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    • 2020
  • 서울, 부산, 대구, 대전, 광주 5개 대도시와 그 외 산청과 영천지점의 강우자료를 이용하여 Box-Cox변환기법에 의한 I-D-F곡선을 유도하였다. Box-Cox변환기법의 실용성은 여러 학문분야에서 검증받은 기법으로 분석 자료가 일반 빈도해석을 수행하기에 부족하여 적절한 확률밀도함수를 도출하지 못할 경우에도 사용가능하기 때문에 적용성 측면에서 전통적인 빈도해석 방법보다 확장성이 크다. 전술한 7개 지점의 전체지속기간 강우자료(10분~1440분)와 짧은 지속기간(20분, 30분, 40분, 50분) 강우자료가 누락될 경우의 강우강도를 비교했을 때 100년 빈도 이하 지속기간 10분~60분에서 -23.0~14.7 %의 상대오차가 있었다. 이에 따라 강우분석 시 짧은 지속기간(20분, 30분, 40분, 50분) 강우자료를 포함하여 I-D-F곡선을 유도함이 요구되며 짧은 지속기간(20분, 30분, 40분, 50분) 강우자료가 누락될 경우 소규모 수공구조물 설계 시 원활한 배수를 위해 지점에 따라 기존의 여유율을 높일 필요가 있다.

의료보험청구자료중 뇌혈관질환 상병기호의 정확도에 관한 연구 (The Accuracy of ICD codes for Cerebrovascular Diseases in Medical Insurance Claims)

  • 박종구;김기순;이태용;이강숙;이덕희;이선희;지선하;서일;고광욱;류소연;박기호;박운제;김춘배
    • Journal of Preventive Medicine and Public Health
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    • 제33권1호
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    • pp.76-82
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    • 2000
  • Objectives : We attempted to assess He accuracy of ICD codes for cerebrovascular diseases in medical insurance claims (ICMIC) and to investigate the reasons for error. This study was designed as a preliminary study to establish a nationwide surveillance system. Methods : A total of 626 patients with medical insurance claims who indicated a diagnosis of cerebrovascular diseases during the period from 1993 to 1997 was selected from the Korea Medical Insurance Corporation cohort (KMIC cohort: 115,600 persons). The KMIC cohort was 10% of those insured who had taken health examinations in 1990 and 1992 consecutively. The registered medical record administrators were trained in the survey technique and gathered data from March to May 1999. The definition of cerebrovascular diseases in this study included cases which met ore of two criteria (Minnesota, WHO) or 'definite stroke' in CT/MRI finding. We questioned the medical record administrators to explain the error if the final diagnoses were not coded as stroke. Results : The accuracy rate of the ICMIC was 83.0% (425 cases) Medical records were not available for 8.2% (51 cases) due to the closing of hospitals, the absence of a computer system or omission of medical record, etc. Sixty-three cases (10.0%) were classified as impossible to interpret due to insufficient records in 'major clinical symptoms' or 'neurological deficits'. The most common reason was 'to meet review criteria of medical insurance benefits (52.9%)'. The department where errors in the ICMIC occurred most frequently was the department for medical insurance claims in the hospital. Conclusion : The accuracy rate of the ICMIC was 83.0%.

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대한방사선종양학회지 게재 논문의 통계적 오류 현황 (Statistical Errors in Papers Published in the Journal of the Korean Society for Therapeutic Radiology and Oncology)

  • 박희철;최두호;안성복;강진오;김은석;박원;안승도;양대식;윤형근;정은지;지의규;표홍렬;홍세미
    • Radiation Oncology Journal
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    • 제26권4호
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    • pp.289-294
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    • 2008
  • 목 적: 본 연구는 대한방사선종양학회지 게재 논문의 통계 오류 현황을 파악하고 이에 근거한 문제 제기를 통해 학회지의 학술적 발전에 기여하고자 하였다. 대상 및 방법: $2006{\sim}2007$년 사이에 대한방사선종양학회지에 게재된 총 77편의 논문을 연구 대상으로 하였다. 각각의 논문에 적용된 통계 방법론의 적정성 평가는 통계점검표를 활용하였다. 통계점검표에는 연구의 종류, 통계 기법의 사용 범위, 각 논문에 적용된 통계 기법의 종류, 통계적 기법 적용의 타당성 항목이 포함되었다. 통계 오류는 '생략의 잘못'과 '시행의 잘못' 항목으로 나누었다. 한 논문에서 서로 다른 항목이 여러 가지 관찰된 경우 각각 횟수로 측정하였다. 같은 항목이 2회 이상 측정된 경우 1회로 횟수를 측정하였다. 통계 전문가가 개별 논문을 대상으로 통계점검표를 작성하였다. 일차 평가자가 방사선종양학 전문가가 아닌 것에서 올 수 있는 평가 오류가 있을 수 있으므로 개별 통계점검표는 간행위원회에서 한 차례 더 세부 점검을 하였다 작성된 통계점검표의 통계 분석은 SAS (version 9.0, SAS Institute, NC, USA) 소프트웨어를 이용하였고 빈도분석을 시행하여 각 항목의 빈도와 백분율을 산출하였다. 결 과: 총 77편 중 원문을 다운로드 할 수 없었던 4편을 제외한 73편의 게재 논문을 대상으로 평가하였다. 증례보고는 5편, 원저 논문은 58편이었다. 대상 논문 중 46편의 논문에서 통계적 추론을 사용하였고, 16편의 논문에서 단순한 기술통계를 사용했으며, 11편의 논문에서는 통계적 기법을 사용하지 않았다. 추론통계를 사용한 46편의 논문에서 사용된 추론통계의 횟수는 각각 분할표분석 17회(37.0%), 비교통계분석 23회(50.0%), 회귀분석 7회(15.2%), 상잔분석 5회(10.9%), 생존분석이 27회(58.7%)였다. 통계 기법을 활용하여 연구 결과를 분석할 때 통계적용의 오류가 없는 논문은 19%였다. '생략의 잘못'은 34편(50.0%)의 논문에서 총 50회 관찰되었다. '시행의 잘못'은 35편(51.5%)의 논문에서 총 47회 관찰되었다. '생략의 잘못'과 '시행의 잘못'이 모두 발견된 논문은 21편(30.9%)이었다. 결 론: 대한방사선종양학회지에 게재된 논문에서 통계 분석 과정의 다양한 영역에 걸쳐 크고 작은 통계적 오류가 있음을 확인하였다. 향후 대한방사선종양학회지 투고 논문의 심사과정에서 통계 오류에 관한 적절한 심사를 추가하는 것이 필요하다고 판단된다.

BIM을 활용한 LCA기반 환경부하평가에 관한 연구 - NATM 터널 사례 중심으로 - (A Study on the Evaluation of Environmental Load Based on LCA Using BIM - Focused on the Case of NATM Tunnel -)

  • 이양규;한중근;권석현
    • 대한토목학회논문집
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    • 제38권3호
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    • pp.477-485
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    • 2018
  • 건설공사시 발생하는 환경부하 관리를 위해서는 시공시 실제 투입되는 물량을 면밀히 파악할 필요가 있다. 현재 건설공사에서는 2D도면을 활용한 설계의 경우에는 실제 설계 도서간 물량산출 값의 오차, 설계항목의 누락이 발생하고 있으며 건설 공사의 경우 불확실한 요소들로 인하여 시공 중에도 빈번히 설계변경 및 오류가 발생하고 있다. 또한 2D 설계를 바탕으로 하는 LCA평가의 경우 도면, 내역서 등을 이용하여 작업자가 수기로 작업공종에 투입되는 자재를 산출해야하는 어려움이 있다. 본 연구에서는 2D 설계를 바탕으로한 물량산출과 BIM기반의 물량산출을 바탕으로 LCA 분석을 비교하여 시공과정에서 활용 할 수 있는 신뢰도 높은 환경부하평가 방법을 검증하고자 한다. 또한 설계도서를 활용한 내역기반의 2D설계의 물량산출 및 LCA 평가 방법을 제시하고, 3D 기반의 평가 프로세스를 비교 분석하여 BIM 설계기법 도입에 따른 LCA 평가 활용 가능성을 제시하고자 한다.

온라인상에서의 부산항 오류정보 실태 분석에 관한 연구 (Research about Busan Port mistake information actual conditions analysis in on-line)

  • 조민제;최형림;박남규;김기원;박용성
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2004년도 춘계학술대회 논문집
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    • pp.427-433
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    • 2004
  • 온라인상에서 정보는 지속적으로 증가하고 있지만, 이러한 정보들의 정확성을 유지하려는 노력이 부족하여 부정확한 정보들이 양산되고 있는 실정이다. 이미 웹에서의 정보의 관리에 대한 연구는 다양한 방법과 관점으로 이루어지고 있지만, 특정 대상에 대한 웹에서의 정확한 정보 제공의 중요성과 오류정보의 제공에 대한 문제점 및 관리방안 제시는 아직 연구 사례 없고 정보의 정확성을 유지 할 수 있는 시스템이 제대로 갖추어지지도 않고 있다. 본 연구에서는 온라인상에서의 오류정보의 문제와 그 관리의 중요성을 인식하고, 웹 사이트에서 현상정보를 제공함에 있어 요구되는 오류 정보들에 대한 관리 방안을 제시하고자 한다. 이를 위하여 우선 문헌조사 및 선행연구를 동하여 정보의 오류에 대한 정의를 내리고, 오류 정보를 유형별로 분류하였다. 그리고 온라인상에서의 부산항 관련 정보제공 현황 및 오류 정보제공의 실태조사 및 분석을 하였다. 조사된 오류 정보들의 유형과 특성을 반영하여, 항만 관련 웹 사이트의 관리에 있어 오류 정보가 사이트의 신뢰성 확보에 얼마나 영향을 미치는지와 항만의 현황정보 및 운영정보에서 최신성과 정확성의 중요성을 인식하도록 하였다.

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국내(國內) 의류업계(衣類業界)의 패턴실(室) 운용(運用) 실태(實態) 연구(硏究) (A Study on the Patternwork Departments of Apparel Manufacturing Companies in Korea)

  • 고지영;손희순
    • 패션비즈니스
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    • 제3권4호
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    • pp.139-146
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    • 1999
  • The purpose of this study is to analyze the efficiency and working conditions of the patternwork departments by surveying the apparel manufacturing companies sampled in Seoul for their organization, working enviornment and technology of their patternwork departments, and thereby, find the ways to promote the functions of the patternwork department. The results of this study can be summarized as follows; 1. As a result of analyzing the working environment of patternwork departments, it was found that the problems counted by most of the pattern workers were lack of workforce, unhygienic or unpleasant workplaces. 2. As a consequence of analyzing the sample production in terms of tacking methods and times, They rarely tacked the white cotton. Such an omission of tacking procedure may serve to save time, but if a sewing error occurs, the working time would rather be longer due to the defects of pattern to be remedied. 3. As a result of reviewing the general patternwork conditions, it was found that the patterns were still worked out in two dimensions. On the other hand, more than 60% of the pattern workers were applying to their patternworks the styles which they had learned from their seniors. Few patterns are being developed in conformity to apparel trends or body shape changes. 4. As a consequence of examining the problems involving the production of patternsl, the problems involved primarily the patterns incised off no-dart pattern and body structure, and in light of items, involved mainly the trousers and in light of material, involved much the stretch or velvet. Moreover, it is deemed necessary to establish a special institute devoted to a systematic development of pattern technology. 5. Most of the CAD patternworks are used not for pattern designing but for grading and marking works, which suggests that pattern workers need to be educated on this new technology for more diverse and precise patternworks. 6. Lastly, as a result of examining the conditions of patternwork departments and their relevant works, most of the pattern workers were found to be subject to irregular and excessive workload, having little time to produce good patterns. This finding suggests that it is necessary to mandate the pattern workers to more involve the commodity planning.

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