http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
기-액흐름 연속누출에 의한 개방공간 증기운 폭발사고를 중심으로 중,소규모 사업장을 위한 사고 영향평가 방법
장서일,이헌창,조지훈,김태옥 한국산업안전학회 2003 한국안전학회지 Vol.18 No.1
For the unconfined vapor cloud explosion(UVCE) accident by the continuous release of gas-liquid flow of various saturated liquids in a vessel at ground level, overpressures were estimated by TNT equivalency model with two estimation methods, such as UVCE Ⅰ model based on a constant release time and UVCEⅡ model based on a real travel time of vapor by dispersion and analyzed with various release conditions. As a simulation result, the simple, easy, and correct method of evaluation of consequences of the UVCE accident was proposed by using consequences of UVCEⅠ model and correlation equations for differences of overpressures between UVCE models, so that this evaluation method could be used easily in the small and medium size enterprises without using the dispersion model.
Lean Six Sigma 기법을 이용한 생산시스템 개선 및 확장 모델 연구
서장훈 동의대학교 경제경영전략연구소 2009 經濟經營硏究 Vol.4 No.2
Lean Six Sigma(LSS) is a business improvement methodology which combines (as the name implies) tools from both Lean Manufacturing and Six Sigma. Lean manufacturing focuses on speed and traditional Six Sigma focuses on quality. By combining the two, the result is better quality faster. Both the Lean and the Six Sigma methodologies have proven over the last twenty years that it is possible to achieve dramatic improvements in cost, quality, and time by focusing on process performance. Therefore, many firms are looking for an approach that allows to combines both methodologies into an integrated system or improvement roadmap. However, the differences between the Six Sigma and Lean are profound. Using Lean Six Sigma for strategic advantage in Business flow. The ROI of Lean Six Sigma for services Getting faster to get better(why you need both Lean and Six Sigma) Improving services. As a Result, Lean Six Sigma System derives the long-term success for the powerful management system. This paper shows that the execution of Lean 6sigma method can be successful only if the management officers' interest and support are back up. And we suggest a guideline that continuous improvement factors and performance Tool are the most necessary factors for the successful cooperation management using LSS
효과적인 SCM 구축을 위한 Positioning & Strategy에 관한 사례연구
서장훈,양광모,박명규 한국생산성학회 2004 生産性論集 Vol.18 No.2
Recently, an enterprise's survival strategy is a difficult task, because the competition of a business is more complex ever. The research aims to demonstrate the dynamic structural change in a conceptual point of SCM positioning & strategy. But it has many problems since it is difficult and wide to define. Therefore, the Manager don't aware a total executable implementation even though the enterprise knows necessity of SCM. This paper focuses on a proposal of alternatives with reasonable positioning like most of enterprises willing to overcome such as carelessness and unready strategy of investment, additionally, the thesis should effort to find an element through an analysis of cases, a statistical method of effective SCM, and actual survey to propose an alternative between Positioning & Strategy in Enterprise SCM.
여드름양 발진에서의 말라쎄지아 포자 검출 빈도에 관한 연구
박장규,이웅재,김연수,서영준,김경호,이증훈 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.2
Steroid acne and pityrosporum folliculitis have similar clinical manifestations. So it was not casy to do differential diagnosis of these two diseases. We have tried to find out the different points between these diseases in clinical characteristics, positive rate of the malassezia spores, and their response to antifungal agents. We studied 21 patients with acneiform eruptions which were distinct from acne vulgaris. Patients were divided into two groups by steroid treatment history. Among 21 patients, 6 were administered steroid just before eruption and 15 were free from steroid within 6 months. We have examined malassezia spores with 10% KOH/Parker blue black ink mount from papules, pustules and comedones according to the patients skin lesions. The malassezia spores detected in 5 paticnts(83.3%) in the former and 9 patients(60%) in the latter. In malassezia folliculitis, the frequency of which showed above the (3+) score of malassezia spore under microscopy was higher than in steroid acne. Mean duration of the disease was 70.4 weeks in latter group, which was longer than 5.2 weeks of the former group. And there were some differences between two groups in the distribution of the lesions. Mean treatment duration was same in two groups (4 wks, 3.5 wks). Steroid acne patients would be treated better with antifungal agents than with acne regimens.
재래식 시장 지하 상인의 호흡기증상 및 폐기능 조사 연구
이승관,이창규,조경진,임현표,서장훈,최윤수 高麗大學校 倂設 保健大學 保健科學硏究所 1998 保健科學論集 Vol.24 No.1
The prevalence of respiratory symptoms and pulmonary function were studied in a group of 55 whole-sale market merchants Working in underground. As a control group, 55 whitecollar workers was also included in this study. Following results were obtained. A higher complaint for respiratory symptoms(cough, sputum, chest tightness, shortness of breath) was found among merchants than control workers. The measurement value for FVC, FEV1.0, FEV 1.0% in the merchants were reveal to lower figure in comparison with control groups. The measurement Value for MVV, PEF in the merchants were lower than control groups, but was not significant statistically. The pattern of pulmonary ventilation disturbance in the whole-sale market merchant were the same as followings : restrictive disturbance(6 person), abstrictive disturbance(1 person), and combined disturbance(1 person).
Transcranial magnetic stimulation can diagnose electrical burn-induced myelopathy
Seo, Cheong Hoon,Jang, Ki Un,Lee, Byoung Chul,Choi, Ihn-Geun,Kim, Jong Hyun,Chun, Wook,Jeong, Je Hoon,Kang, Tae-Cheon Elsevier 2011 Burns Vol.37 No.4
<P><B>Abstract</B></P><P><B>Introduction</B></P><P>We conducted motor- and sensory-evoked potential analyses and investigated their diagnostic value in differentiating between electrical burns without evidence of neurologic injury and those with clinical evidence of myelopathy.</P><P><B>Methods</B></P><P>We studied high-voltage electrical burn injury patients with lower extremity weakness and evidence of myelopathy and those without any evidence of neurological complications. Motor-evoked potentials (MEPs), somatosensory-evoked potentials (SEPs), and MRI studies of the spinal cord, as well as transcranial magnetic stimulations, were performed. The central motor conduction time (CMCT) was also calculated.</P><P><B>Results</B></P><P>The upper limb MEP and upper and lower limb SEP variables did not statistically differ between the 2 groups. The CMCT and total motor conduction time recorded in the lower limb were delayed in the burn myelopathy group. MRI revealed no abnormal signal changes in myelopathy patients.</P><P><B>Conclusion</B></P><P>Our study demonstrates that MEP is useful in identifying myelopathy in patients who have sustained high-voltage electrical burns.</P>