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고성능 시스템을 위한 클록 분배 방식 및 Coplanar 및 Microstrip 전송라인의 구조적 분석
박정근,문규,위재경,Park, Jung-Keun,Moon, Gyu,Wee, Jae-Kyung 대한전자공학회 2004 電子工學會論文誌-SD (Semiconductor and devices) Vol.41 No.4
고속 저전력 디지털 시스템을 위해 클록 스큐를 최소화하고 동적 파워 소모를 줄이는 새로운 클록 분배 방법을 제안하였다. 제안된 방법은 접힌 라인구조(FCL)과 위상 섞임 회로(phase blending circuit)을 이용하여 Zero-skew 특성을 갖는다. FCL에 적합한 라인 구조를 분석하기 위해, 마이크로 스트립과 코플라너 라인을 FCL형 클록 라인으로 분배되었다. 시뮬레이션 결과는 l0㎜ 떨어져 있는 두 리시버 사이의 최대 클록 스큐가 1㎓에서 10psec보다 적고 20㎜ 떨어져 있는 두 리시버 사이의 최대 클록 스큐는 1㎓에서 60 psec보다 작음을 보였다. 또한, 공정, 전압, 온도 변화에 무관하게 클록 신호들의 스큐가 변하지 않음을 알 수 있었다. A novol clock distribution scheme is proposed for high-speed and low-power digital system to minimize clock skew and reduce dynamic power consumption. This scheme has ideal zero-skew characteristic by using folded clock lines (FCL) and phase blending circuit. For analyzing suitable line structures to FCLs, microstrip line and coplanar line are placed with folded clock lines. Simulation results show that the maximum clock-skew between two receivers located 10mm apart is less than lops at 1㎓ and the maximum clock-skew between two receivers located 20mm apart is less than 60ps at 1㎓. Also the results show that the minimum skews of clock signals regardless of process, voltage, and temperature variation are invariant.
朴廷根(Park Jung-keun) 강원한국학연구원 2018 국제한국학저널 Vol.5 No.-
인간은 혐오스러운 상황에서 보편적인 결정으로 낙인(烙印)함으로써 그 대상에게 수치심을 부여한다. 인간 스스로 혐오의 범주를 그어놓고 혐오스러워한다. 그렇다면 혐오의 범주는 타당성 있는 구획(區劃)인가? 아니면 인간 스스로 정해놓은 구획의 틀에 갇혀 혹 그것이 혐오스럽지는 않은가? 역사적 관점에서 문화라는 것은 한 순간에 단절되고 단칼에 정리되지않는다. 왜냐하면 부정적인 문화도 뿌리 깊게 자리 잡은 속성까지 깨끗이 없애는 일이 불가능하기 때문이다. 본고에서는 동양사회의 관점으로 혐오와 수치심에 대하여 역사적인 면을 고찰하였다. 이에 인간이 만들어낸 형벌에 대하여 상나라 때 갑골문에 드러난 형벌에 대해 살펴보았고, 동성애에 대한 문헌적 사실(史實)을 통해 살펴보았으며, 근대에 인간이 자행한 우생학적 측면으로써의 단종법을 고찰하여 혐오와 수치가 인간에게 주는 영향에 대해 논의하였다. 이러한 역사관점의 근거를 통해 동성혼의 비판과 함께 이성혼인에 대해 논의하고 유가관점에서 혼인이 왜 중요한 것인가를 다루었다. By stigmatizing with universal decision in a disgusting condition, we make others feel ashamed. In addition, we feel hateful under the category of hatred made by us. Then is the category of hatred the valid section? Or is it not disgusting when we are confined in the framework made by ourselves? In the historic viewpoint, a kind of culture cannot be severed or annihilated at a time. It is impossible to uproot it, since even the negative culture has its own root. Hatred also cannot be exterminated like the deep-rooted culture. This study investigated the historic side of hatred and shame from the Oriental viewpoint. For this, as for punitive measures made by human beings, the punitive system on the shell-and-bone characters in Sang dynasty was examined. The bibliographical facts about homosexual love were reviewed. And the effects of hatred and shame on human beings were discussed, following the consideration of eugenical sterilization committed by human beings in modern times. Based on the foundation from these historic viewpoints, the heteronymous marriage will be discussed, along with criticism of homosexual marriage. In addition, the importance of marriage will be mentioned from the Confucian viewpoints.
활동기준원가(ABC)을 이용한 프랜차이즈업체원가 분석에 관한 연구
박정근 ( Jung-keun Park ) 한국고등직업교육학회 2005 한국고등직업교육학회논문집 Vol.6 No.4
This Paper is to study the activities to generate the cost chiefly with the costs of management and production activities engaged in the franchise industry, to analyze business activities with the accurate Activity Based Cost accounting systematically and to work out a profitable strategy. And also, it is to suggest a proper ABC variables to achieve the target profit. A critical expense in the management activities is entertainment expense, insurance expense, labor expense, rental expense, light and fuel expense, transportation expense. A critical expense in the production activities is entertainment expense, depreciation expense, environment expense, vegetable expense, fish expense, egg expense. We have to manage a critical expense for a successful management.
박정근(Jung?Keun Park),김대성(Day?Sung Kim),서경범(Kyung?Beom Seo) 대한인간공학회 2008 大韓人間工學會誌 Vol.27 No.3
Musculoskeletal disorder (MSD) problems have been increasingly reported in hospital sector but the problems were not addressed with respect to holistic aspects of the target population in Korea. Often, it is required to understand how MSD symptoms are associated with factors such as personal, work environmental and psychosocial stressors. To examine features of association between sets of MSD symptoms and the factors, a questionnaire survey was conducted in a university hospital. A 140-item questionnaire was developed and used for collecting information including factors (e.g., job/occupation, task/activity, job stress) and MSD symptoms. A total of 1,091 workers (male 23.7% and female 76.3%) were finally determined for data analyses. Prevalence rate for the whole body was 72% and, among body parts, the highest was 48.7% for the shoulder, followed by 34.6%(the low back), 32.7%(the leg/foot), 27.9%(the neck), 26.7%(the wrist) and 12%(the elbow). The symptoms were significantly different by job/occupational variable in each of all body parts except the neck. The symptoms were very significantly different by task/activity variables in each of all body parts while those symptoms were significantly different by psychosocial variables, depending on body part and gender. In the logistic regression analyses performed for MSD symptoms by body part and each of 3 factors, odds ratio values varied, ranging from 0.7 to 3.3. The controls for reducing the symptoms were discussed on the basis of the findings. The results show that the MSD symptoms can remarkably vary by the factors and, in particular, can be highly differential for the task/activity factor. This study suggests that MSD symptom features be examined by using various factors and then a higher differential factor be primarily utilized for controling MSD symptoms in general industry including hospital settings.
박정근 ( Jung-keun Park ),박면애 ( Myen-ae Park ) 한국고등직업교육학회 2006 한국고등직업교육학회논문집 Vol.7 No.1
The Purpose of this paper is to develop a sale forecasting model by Activity-Based Costing of product and management activity in the provide meals business. And the other purpose is to analysis a critical variable of labors costs and expense in the product and management activity. The analysed results of C&R Tree Model and C5.0 Rule Induction Model, it analysed a 76.22% forecasting ratio in the Neural Networks Model, but it analysed a 94.51% forecasting ratio in the C5.0 Rule Induction Model. Therefore we concluded that a C5.0 Rule Induction Model is the more forecast than a C&R Tree Model.