• Title/Summary/Keyword: Objectivity

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Developement and application of Statistical Hydrofracturing Data Processing Program (통계적 접근법에 의한 수압파쇄 자료해석용 전산 프로그램 개발 및 적용)

  • 류동우;최성웅;이희근
    • Tunnel and Underground Space
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    • v.6 no.3
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    • pp.209-222
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    • 1996
  • Shut-in pressure, reopenting pressure and fracture orientation are very important parameters to be evaluated precisely in in-situ stress measurement by hydraulic fracturing. Graphical methods on pressure-time curves have been conventionally used, even though these are seriously dependent on subjectivity of interpreters. So there have been many demands on new method to objectivity in determining parameters. We have developed integrated hydrofracturing data processing program (HYDFRAC), based on nonlinear regression analysis and can be invoked under the Window graphical user interface. HYDFRAC consiste of three routines, that is shut-in pressure routine, reopening pressure routine, and fracture delineation routine. Each of routines include independent modules according to parameter determination methods. Its application to field tests ensured both objectivity and facility in determining of hydraulic fracturing parameters. Determining shut-in pressures at each pressurization cycles, we adopted the exponential pressure-decay method(EPD method), the bilinear pressure-decay-rate method (PDR method), and the tangent intersection method in order to find the pressurization-cyclic tendency of shut-in pressures. The estimated pressure by PDR method exists in the range of the upper and lower values by EPD method, and lies near to the upper value more than the lower. Being the pressurization cycle increased, the range of upper and lower limits come to be stabilized gradually. By graphical superposition method and bilinear pressure-accumulated volume method, reopening pressures were determined. Vertical and inclined fracture attitudes were determined by applying the directional statistics and sinusoidal curve fitting, respectively. The results of evaluation of hydrofracturing parameters showed that statistical methods could enhance the objectivity better than graphical methods.

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"To Invent the Truth": Ford Madox Ford's Life and His Literary Impression ("진실의 창안": 포드 매독스 포드의 삶과 문학적 인상주의)

  • Kim, Heesun
    • English & American cultural studies
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    • v.14 no.2
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    • pp.127-157
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    • 2014
  • Among many literary isms, impressionism is often regarded as the most frank expression of personality. As a masterpiece of modernism, Ford Madox Ford's The Good Soldier is a celebration of the subjectivity which reflects the writer's experiential reality. For Madox Ford, art is not to achieve the true objectivity of human society, but to seize the momentary perception in personal life. As the beginning of modernism, Madox Ford's impressionaism was mostly devoted to give fictive life to subjective impressions. And his heroes are usually the egoless person who can absorb the intense rapidity of consciousness without any prejudice. However, the innocent mind's receptions of myriad impressions, like those of the protagonist John Dowell or his idealized version of Major Ashburnham in The Good Solidier, were described as the enjoyable yet deceptive ones in Madox Ford's works. To engrave more sold perceptive impressions into life, Madox Ford often contrasts or mixes truth with deception, life with death as he did in his real life. Speicially as the result of thick application of real-life subject matters to his writings, Madox Ford's literary works get more vivid colors and penetrating forms. Thus, his literary impressionism based upon his harsh and passionate realities overcomes the limitations of shifting moments of senses, demolishing the boundaries between what is objective and what is subjective, like post-impressionism or expressionism. Namely, as Walter Lowenfels said, Madox Ford did not follow the impossible objectivity passively, yet instead "knew how to invent the truth."

A Review of Eye-tracking Method in Elementary Science Education Research (초등과학 교육연구에서 시선추적 연구방법의 고찰)

  • Shin, Won-Sub
    • Journal of Korean Elementary Science Education
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    • v.35 no.3
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    • pp.288-304
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    • 2016
  • The purpose of this study is a review of previous studies and principles of eye-tracking techniques that are actively applied in recent elementary science education. Also it proposes to utilize the direction of eye tracking techniques in elementary science education research. Recent eye-tracking technology was developed, using the infrared pupil and the corneal reflection can be safely and accurately track the eye movements of the participants. Eye tracking has the advantage of higher temporal resolution, accessibility, convenience, objectivity, stability and safety. Analysis of the previous studies, there was a difference in the study design and analysis. The workshops and seminars are needed for accurate understanding of eye-tracking method in elementary science education research. In conclusion, the eye-tracking can be utilized such as effectiveness analysis of teaching materials and media, behaviors analysis of teachers and students in a real class, cognitive strategies and attention analysis of the student, discriminating tool of various education evaluation, etc.

A Study on PCG-ECG Signal Processing and Analysis (심음, 심전 신호처리 및 해석에 관한 연구)

  • Yi, Dae-Hee;Yang, Won-Young
    • Proceedings of the KIEE Conference
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    • 1991.07a
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    • pp.905-907
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    • 1991
  • One of the general methods to diagnose abnormalities of heart is stethoscopy. This method needs special skill and experiment of doctors and it lacks for objectivity. Electrocardiography(ECG) is another biomedical method which is commonly used to diagnoss abnormalities of heart. The development of PCG is required in recent years to improve objectivity of stethoscopy method. In this paper, PCG is implemented on personal computer and ECG is also included to help the analysis of PCG waveform. Time analysis is used so far, but in this paper the frequency analysis is also considered to improve the accuracy of disgonosis. As future research, recognition of PCG and ECG signal and the Expert System is required to improve the accuracy of diagnosis.

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Methods for Measuring Exposure to Environmental Tobacco Smoke (ETS)

  • Wu, Joseph--M
    • Journal of the Korean Society of Tobacco Science
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    • v.19 no.2
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    • pp.162-169
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    • 1997
  • An important and somewhat under-emphasized issue in assessing the risk potentially associated with exposure to ETS is the reliability and objectivity of the methods used to measure the actual level of exposure. Objectivity of the science is crucial in this context since this topic tends to elicit strong social, emotional and political responses among the general public and the scientific community alike. This mini-review compares the strengths and limitations of various methods used in determining ETS exposure in scientific investigations. Methods reviewed include: questionnaire, area monitoring, bio-monitoring, and personal monitoring. In particular, results of several recent studies (conducted in the United States, Europe, and the Far East) using personal monitors in combination with questionnaire and bio-monitoring, which contribute to a more reliable, objective and realistic estimates of a person's actual exposure to 575, are discussed.

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Perspectives on Modern Drama

  • Yang, Gi-Chan
    • Lingua Humanitatis
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    • v.2 no.1
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    • pp.239-258
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    • 2002
  • The paper develops the arguments as to how one should perceive modem theater and how one should categories it, not to mention how one may identify the traits of modern theater. The Contemporary Theater has changed in a way that it is no longer possible to define the genre relying on conventional definitions that we associated with it in the past. The paper in this regard proposes a perspective which by addressing the evolutions that one has seen in the theories of reception and other relevant literary fields may define the very nature of the theater as we Cow it today. The paper is largely based on the aesthetics of reception and the objectivity theory which is based on the decontextualisation, recontextualisation and contextextualisation method that is being more and more commonly used in the field of literary academics of today. The relevancy of this paper rests with the hypothesis that it is by and through using various theories of reception that it is the only true solution as to defining and identifying the characteristics of modem theater.

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An Objective method of risk assessment based on RAM analysis for warship (함정 분야의 RAM분석 기반 위험평가 방안)

  • Beak, Yong-Kawn;Kang, Byoung-Soo;Jo, Kwan-Jun
    • Journal of Korean Society for Quality Management
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    • v.43 no.4
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    • pp.511-520
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    • 2015
  • Purpose: This study suggests a method of risk assessment based on RAM analysis in order to reduce the subjectivity. Methods: RAM analysis is used to assessment risk consequence(RC) and risk likelihood(RL). Result: The calculated result of the product, which has higher risk assessment, shows lower MTBF system. Conclusion: Risk assessment based on objective database will provide objectivity and effective quality control.

Crowdsourced Design Evaluation Methodology for Architectural Education (크라우드소싱을 이용한 건축 디자인 평가 방법 연구)

  • Shin, Dongyoun
    • Journal of KIBIM
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    • v.13 no.1
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    • pp.33-40
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    • 2023
  • In architectural design studios, students' needs are evaluated from a diverse and objective point of view. And the evaluation process and results are to use a design evaluation method that everyone can recognize. Therefore, in this study, we propose Crowdsourcing, in which a large number of participants participate in the evaluation to solve fundamental problems. However, the field of architecture is an area in which expertise such as evacuation, firefighting, rescue, and regulations is essential. Therefore, we expanded the concept by participation of a large number of architects, not the general public. And It presented a new word, Prowdsourcing. Prowdsourcing is a group of architects working on-line as an evaluator. It is a method that can have objectivity and expertise of evaluation at the same time. Therefore, prowdsourcing will provide students with a variety of objective assessments, which will be a recognized design evaluation method by everyone.

Safety diagnosis process for deteriorated buildings using a 3D scan-based reverse engineering model

  • Jae-Min Lee;Seungho Kim;Sangyong Kim
    • Smart Structures and Systems
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    • v.31 no.1
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    • pp.79-88
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    • 2023
  • As the number of deteriorated buildings increases, the importance of safety diagnosis, maintenance, and the repair of buildings also increases. Traditionally, building condition assessments are performed by one person or one company and various inspections are needed. This entails a subjective judgment by the inspector, resulting in different assessment results, poor objectivity and a lack of reliability. Therefore, this study proposed a method to bring about accurate grading results of building conditions. The limitations of visual inspection and condition assessment processes previously conducted were identified by reviewing existing studies. Building defect data was collected using the reverse-engineered three-dimensional (3D) model. The accuracy of the results was verified by comparing them with the actual evaluation results. The results show a 50% time-saving to the same area with an accuracy of approximately 90%. Consequently, defect data with high objectivity and reliability were acquired by measuring the length, area, and width. In addition, the proposed method can improve the efficiency of the building diagnosis process.

A Study on Securing Objectivity in Small-Scale Environmental Impact Assessments Using Delphi Analysis

  • Dong-Myung CHO;Ju-Yeon LEE;Woo-Taeg KWON
    • Journal of Wellbeing Management and Applied Psychology
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    • v.7 no.3
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    • pp.73-95
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    • 2024
  • Purpose: Since August 2000, the small-scale environmental impact assessment system has prevented indiscriminate development. However, its qualitative reports lack objectivity and consistency. This study analyzes these issues through literature and expert surveys and proposes improvements. Research Methodology: Samples were selected based on regional consultation numbers. Mitigation measures were categorized into qualitative and quantitative factors. Issues were identified, and improvements suggested. The Delphi method helped select evaluation items and propose a scoring table. Results and Conclusions: The Delphi method selected 14 absolute and 22 relative evaluation items, excluding 3 invalid ones. A 100-point scoring table was created, with points assigned based on element significance. A 1-point bonus was added for top-scoring elements to promote eco-friendly planning.