• 한국철도학회:학술대회논문집
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• 한국철도학회 2010년도 춘계학술대회 논문집
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• pp.1518-1524
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• 2010

Measures on poor process should be identified by reviewing analysis of planned progress and actual progress for successful performance of Process Control. However, the existing Process Control only performances follow-up measures on poor process but it cannot prevent poor process which is not occurred. To solve these problems, this study suggests the three types of methods of process prediction(Regression Analysis) by using a progress rate which consists of planned progress rate and Actual progress rate.

• 한국건축시공학회지
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• 제22권3호
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• pp.293-303
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• 2022

건설공사의 정확한 상시근로자수의 산정이 어려워, 추정 상시근로자수를 기준으로 재해율을 산정한다. 또한 이러한 재해율 산정방식은 재해건수가 근로자수에 비례한다는 추정에 의해 만들어진 것이며, 이를 기반으로 하여 산정된 재해율의 신뢰도에 대한 문제가 제기된다. 본 연구는 추정값이 아닌 실제값을 기반으로 하면서도 간편하게 산정가능한 보조 재해지표를 개발하는 것을 목적으로 하여 공사실적과 재해자수를 기반으로 재해수준을 산정하는 방식을 제시하였다. 그 결과 상시 근로자수와 재해자수와의 상관계수보다 건설기성과 재해자수와의 상관계수가 더 높았다. 또한 매년 재해율이 증가하는 것으로 나타났으나, 재해기성비의 경우 최근 10년간 감소경향을 보여 재해율과 다른 양상을 보였다.

• 한국건설관리학회논문집
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• 제6권1호
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• pp.212-219
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• 2005

건설공사에서 공정관리는 중요하다. 특히 공동주택의 경우 입주일이라는 절대공기의 준수가 매우 중요하다. 이와 같은 공정관리를 위해 공동주택공사에서는 공종별 진도관리가 필요하며, 이는 진도율 산정을 통하여 일정계산 및 기성 산정의 척도로서 사용되고 있다. 현재 국내의 공동주택 건설현장에서 사용되고 있는 대부분의 진도율 산정방식은 경험과 개략적인 수치에 의한 판단에 의존하는 경우가 많아공정의 계획과 공정의 지연시 합리적 만회 대책의 수립이 어려움등 한계를 보이고 있다. 이와 같은 문제를 해결하기 위하여 본 연구에서는 단위작업에서의 물량 달성율과 투입 노무량을 이용한 진도율 산정방식을 제시하고 있다. 즉, 단위작업 진도율은 단위작업에서 수집된 투입 노무량을 층단위의 전체 투입노무량 중의 가중치로 환산하고 이를 물량달성도($\%$)와 곱하여 산출된다. 같은 방법으로 본 연구에서 제시하고 있는 작업분류체계의 상위단계인 층 진도율, 동 진도율을 산출하게 된다 공동주택공사의 골조공사를 대상으로 단위작업, 층, 동 진도율 산정방법을 예시로서 제시하고 있다. 이와 같은 진도율은 향후 단위작업의 노무생산성과 달성물량에 대한 실적데이터의 축적이 이루어질 경우 보다 합리적이고 과학적인 공정관리의 근간이 될 것으로 기대된다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2008년도 추계 학술논문 발표대회
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• pp.89-92
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• 2008

This research analyzed the basic characteristics of unhardened concrete and the compression strength characteristics of hardened concrete according to liquidity retention agent mix rate change to improve the liquidity fluidity retention performance of high performance concrete, and produced the following results. The moment fluidity retention agent is added according to fluidity retention agent mix rate change, which increased fluidity retention agent mix rate, slump flow decreased, and in the case of slump flow according to the progress time change by the fluidity retention agent mix rates, the more fluidity retention agent mix rate increased, the lower slump flow change rate became. The moment fluidity retention agent is added according to fluidity retention agent mix rate change, fluidity retention agent mix rate increased compared to non-mixture of fluidity retention agent, and the air amount by progress time change by the fluidity retention agent mix rates slightly increased, however target range is still met and unit volume mass is inversely proportional to air amount. Compression strength according to age progress by the fluidity retention agent mix rates was shown to increase slightly with increase in fluidity retention agent mix rate, and yet the difference was not significant.

• 대한전기학회논문지:시스템및제어부문D
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• 제55권1호
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• pp.35-41
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• 2006

Although reachers have studied for a long time, they don't make criteria for anesthesia depth. anesthetists can't make a prediction about patient's reaction. Therefor, patients have potential risk such as poisonous side effect late-awake, early-awake and strain reaction. EEG are received from twenty-five patients who agreed to investigate themselves during operation with Enflurane-anesthesis in progress of anesthesia. EEG are divided pre-anesthesia, before incision of skin, operation 1, operation 2, awaking, post-anesthesia by anesthesia progress step. EEG is applied pre-processing, base line correct, linear detrend to get more reliable data. EEG data are handled by electronic processing and the EEG data are calculated by bicoherence. During pre-anesthesia and post anesthesia, appearance rate of bicoherence value is observed strong appearance rate in high frequency range($15\~30Hz$). During the anesthesia of patient, a strong appearance rate is revealed the low frequency area(0~10Hz). After bicoherence is calculated by percentage of a appearance rate, that is, Bicpara$\#$1, Bicpara$\#$2, Bicpara$\#$3 and Bicpara$\#$4 parameter are extracted. In result of bicoherence analysis, Bicpara$\#$2 and Bicpara#4 are considered that the best parameter showed progress of anesthesia effectively. And each separated bicoherence are calculated by average bicoherence's numerical value, divide by 2 area, appear by each BicHz$\#$1, BicHz$\#$2, and observed BicHz$\#$1/BicHz$\#$2's change. In result of bicoherence analysis, BicHz$\#$1, BicHz$\#$2 and BicHz$\#$1/BicHz$\#$2 are considered that the best parameter showed progress of anesthesia effectively. In conclusion, I confirmed the anesthesia progress phase, concluded to usefulness of parameter on bispectrum and bicoherence analysis and evaluated the depth of anesthesia. In the future, it is going to use for doctor's diagnosis and apply to protect an medical accident owing to anesthesia.

• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 1997년도 추계학술대회 발표논문집:21세기를 향한 정보통신 기술의 전망
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• pp.303-320
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• 1997

In A institute, project managers present quarterly project performance report according to institute's law. In quarterly project performance report, progress of project performance and budget expended should be written. Progress of project performance and progress of budget expended are key management factors in A institute. Because financial database system Is already constructed, progress of budget expended is got from information system. But the progress of project performance that project manager estimate subjectively can not be judged of its correctness because there is not project management information system that is able to calculate the progress of project performance systematically. In this study, we present the project management system assign all activities to every project participator according to their work share rate using WBS(Work Breakdown Structure) and calculate the progress of project performance systematically Also we construct project management information system for above project management system implementing.

• 한국식물병리학회지
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• 제14권4호
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• pp.331-338
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• 1998

To develop the model for prediction of potato late blight progress, the relationship between severity index of potato late blight transformed by the logit and Gompit transformation function and cumulative severity value (CSV) processing weather data during growing period in Taegwallyeong alpine area, 1975 to 1992 were examined. When logistic model and Gompertz model were compared by determining goodness of fit for progressive degree of late blight using CSV as independent variable, the coefficients of determination were higher as 0.742 in the logistic model than 0.680 in the Gompertz model. Parameters in logistic model were composed of progressive rate and initial value of logistic model. Initial value was calculated in -3.664. The progressive rate of potato late blight was 0.137 in cv. Superior, 0.136 in cv. Irish Cobbler, and 0.070 in cv. Jopung without fungicide sprays. According to in crease of the number of spray times the progressive rate was lowered, was 0.020 in cv. Superior under the conventional program of fungicide sprays, 10 times sprays during cropping season. Equation of progressive rate, b1=0.0088 ACSV-0.033 (R2=0.976), was written by examining the relationship between the parameters of progressive rate of late blight and the average CSV (ACSV) quantifing weather information. By estimating parameters of logistic function, model able to describe the late blight progress of potato, cv. Superior was formulated in Y=4/(1+39.0·exp((0.0088 ACSV-0.033)·CSV).

• 대한토목학회논문집
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• 제37권2호
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• pp.419-425
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• 2017

다양한 시설의 건설, 다수 이해관계자의 참여, 긴 사업기간 등의 복잡성으로 인해 대규모 건설프로젝트는 이를 관리함에 있어 어려움이 있다. 효과적인 대규모 프로젝트관리를 위해서는 합리적인 진도율 측정이 중요하고, 이를 위한 다양한 방법들이 제안되었다. 하지만 기존의 방법들은 단일 또는 일부 시설의 건설 프로젝트로 한정하였기 때문에 다양한 시설들을 건설하는 대규모 프로젝트에 적용하는 데 한계가 있다. 따라서 본 연구는 대규모 건설프로젝트의 특성을 반영한 진도율 측정 프레임워크를 제안함을 목표로 한다. 프레임워크는 작업분류체계 개발, 주요시설별과 하위시설별 가중치 산정, 통합 진도율 산정으로 총 4가지 단계로 이루어져 있다. 본 프레임워크를 검증하기 위해서 세종시를 대상으로 사례연구를 수행하였고, 활용 가능성을 검증할 수 있었다. 본 연구를 바탕으로 대규모 건설프로젝트의 진도율을 보다 합리적으로 측정할 수 있고 효과적인 프로젝트관리가 이루어질 것으로 기대된다.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1998년도 가을 학술발표대회 논문집(III)
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• pp.883-887
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• 1998

Hydration is the main reason for the growth of the material properties. A exact parameter to control the chemical and physical process is not the time, but the degree of hydration. Therefore, it is reasonable that development all material properties should be formulated in terms of degree of hydration. Mathematical formulation of degree of hydration is based on combination of reaction rate functions. The effect of moisture conditions as well as temperature on the rate of reaction is considered in the degree of hydration model. This effect is subdivided into two contributions: water shortage and water distribution. The former is associated with the effect of on the progress of hydration. The water needed for progress of hydration do not exist and there is not enough space for the reaction products to form. The latter is associated with the effect of free capillary water distribution in the pore system. Physically absorption layer does not contribute to progress of hydration and only free water is available for further hydration.

• 한국재난정보학회:학술대회논문집
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• 한국재난정보학회 2022년 정기학술대회 논문집
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• pp.169-170
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• 2022

As the size of construction projects has become larger in recent years, the nature of the disaster safety factors along with the progress of construction is also becoming more complex and diversified. Accordingly, the introduction of computerized construction, new technologies, and new construction methods has resulted in a variety of risk factors in the process and operations, and many new safety construction methods are being tried. Since the construction industry has variable working environments and constantly changes working methods and components depending on the rate of progress, workers at construction sites are always exposed to risk depending on the specific circumstances of the construction industry. This study attempts to collect and analyze major accident cases generated by major accident construction projects as a result of progress in construction work, and to derive the major causes and causes for each safety management activity that affect safety accidents.