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Taguchi 방법을 사용한 콘택 산호막 식각 공정 최적화 연구
전영진,김창일,구진근,유형준,Jeon, Yeong-Jin,Kim, Chang-Il,Gu, Jin-Geun,Yu, Hyeong-Jun 한국재료학회 1995 한국재료학회지 Vol.5 No.1
클러스터형의 다중 공정용 장치에 부착키 위해 제작된 콘택 산화막 식각용 공정모듈에 대한 적정 식각 공정조건을 확립하기 위해, Taguchi 방법을 활용하여 공정최적화 실험을 수행하였다. Taguchi 실험은 2회에 걸쳐 시행되었는데, 제1차 실험은 장비변수에 대한 식각공정변수의 개괄적 거동을 타진하기 위함이었고, 제2차 실험은 상세 공정조건 확립을 위해서였다. 실험 및 분석 결과 $CHF_{3}/CF_{4}$ 가스유량은 72/8sccm, 공정압력은 50 mTorr, RF 전력은 500 Watts, 자계강도는 90 Gauss일때 최적 공정 성능을 발휘함을 알 수 있다. Process optimization experiments based on the Taguchi method were performed in order to set up the optimal process conditions for the contact oxide etching process module which was built in order to be attached to the cluster system of multi-processing purpose. From the two times experiments of Taguchi method, the overall behaviors of the etchmg characteristics depending upon the equipment parameters were understood at the 1st Taguchi experiment, the detail and optimal process conditions were extracted from the 2nd Taguchi experiment. As a final analysis of experimental results, the optimal etching characteristics were obtalned at the process conditions of $CHF_{3}/CF_{4}$ gas flow rate=72/8 sccm, chamber pressure=50 mTorr, RF power=300 Watts, magnetic field intensity=90 Gauss.
응급실에 내원한 골반골절 환자의 예후와 관련된 요인에 관한 임상적인 고찰
전영진 ( Jeon Yeong Jin ),이상진 ( Lee Sang Jin ),고영도 ( Go Yeong Do ) 대한외상학회 2003 大韓外傷學會誌 Vol.16 No.1
Backgrounds: The object of this retrospective study was to evaluate the clinical pattern of the patients with pelvic fracture due to blunt trauma. We analyzed the correlation between clinical symptoms, pelvic fracture classification, trauma score and ulti
전영진 ( Jeon Yeong Jin ) 대구사학회 2003 대구사학 Vol.72 No.-
明太祖認爲人才與國家的治亂和興衰有關係, 所以君主應與天下的人才共治, 而且人才當官做吏後, 他們必須忠君愛民 國家爲了分別人才是賢是奸, 給他們任職幷試驗他們的才能 這樣的話, 他們的才能就能顯露, 從而也就能知道他們的能力. 而且通過聽取多數人的建議來判斷任用與否. 爲了成爲眞正的人才, 明太祖要求他們不要追求小利, 而要積蓄大善. 同時要求大臣必須好好地觀察人才的不同狀況和外表, 因鑒察他們做的小事, 就能知道做大事的能力. 明太祖要依고才能聘用人才. 但因爲人才各有自己的長處和短處, 不能求全責備. 卽使他們有小的錯誤, 也不應被放棄. 同時應當逐出無能的冗官, 晋昇廉能的官吏. 女官吏在執行善政時犯了過失, 但因善政是官吏的本分, 他應當允許他們復職. 明太祖爲了把握人才的才能, 採用試官制, 强調文武兼備. 他爲了充分表出聘用者的才能, 把他們長期留在一個官廳, 做同樣的職務. 被任用者中不阿諂權勢者能晋昇, 在鄕村里爲功者也能被登用. 他又允許有才者可以繼襲父職, 僧侶道士中有才者也可以被登用. 有卓越的治績者可以避免 `考滿` 而復任. 在任期中沒有過失者, 勤勉自己的庶務者, 和擁有特別才能者都能被擢用, 而且富民中有才者也能被登用. 太祖認爲了所有的階層都能被登用, 不只是世族. 通過太祖施行的薦擧制和學校制, 可以看出他不抱碍出身而登用人才的思想, 他意識到元朝因只重用蒙古人和色目人而導致了滅亡, 所以他爲唯才是用, 明朝建立以後, 他聘用了許多元朝的舊臣和蒙古人, 而不管老少, 中間層, 都能被登用國家官吏.
신경섬유종증 환자에서 경부 혈종에 의한 지연성 상부 기도 폐쇄 1례
이상진 ( Lee Sang Jin ),장혜영 ( Jang Hye Yeong ),어은경 ( Eo Eun Gyeong ),전영진 ( Jeon Yeong Jin ),정구영 ( Jeong Gu Yeong ) 대한외상학회 2003 大韓外傷學會誌 Vol.16 No.1
In a patient with blunt trauma to the neck, there is potential for airway obstruction. In this situation, clinicians must be alert to protect the airway, and rapid assessment and management are essential for saving the life of the patient. A 56-year-old m
An Eurpium(III) Hydrolytic Catalyst Favoring Anionic Phosphate Esters over Phosphate Triester'
윤창원,오순진,전영진,최영서,손윤경,황보석,구자강,박준원,Yun, Chang Won,O, Sun Jin,Jeon, Yeong Jin,Choe, Yeong Seo,Son, Yun Gyeong,HwangBo, Seok,Gu, Ja Gang,Park, Jun Won Korean Chemical Society 2001 Bulletin of the Korean Chemical Society Vol.22 No.2
A Cryptate (221) having a short alcohol pendant (2) was metallated with europium(Ⅲ) in anhydrous condition, and its hydrolytic activity for phosphate esters at neutral pH was examined. While the activity for the phosphate diester and monoester is comparable to that of the parent metal complex [1Eu]3+, its hydrolytic activity towards a phosphate triester is significantly suppressed. Potentiometric titration and luminescence spectroscopic studies for the equilibrium behavior of the complex in solution suggest that a dimer formation through the metal hydroxides as well as the pendant alcohol is likely to happen. The low hydrolytic activity for the triester seems to be associated with the dimer formation.
흉요추부 방출성 골절에서 신경 손상과 관련된 방사선학적 요인
고영도 ( Go Yeong Do ),전영진 ( Jeon Yeong Jin ) 대한외상학회 2003 大韓外傷學會誌 Vol.16 No.1
Background: In burst fractures of the thoracolumbar spine, neurologic injury often develops due to retropulsion of a bony fragment into the spinal canal. The purpose of this study was to determine the radiologic findings frequently accompaning neurologic
전재호(Jae-Ho Jeon),이형철(Hyung-Chul Lee),지현진(Hyun-Jin Ji),전영진(Yeong-Jin Jeon),김용일(Yong-Il Kim),손우성(Woo-Sung Son),박수병(Soo-Byung Park),김성식(Sung-Sik Kim),황대석(Dae-Seok Whang) 대한구강악안면외과학회 2010 대한구강악안면외과학회지 Vol.36 No.1
The purpose of this study was to evaluate the reliability of 6-axis model surgery simulator (6AMSS) for orthognathic surgery. A rectangular parallelepiped plastic block was assembled to model-mounting plate of 6AMSS. Left-right (X), anterior-posterior (Y), up-down (Z) translation and pitching(∅X), rolling (∅Y) and yawing (∅Z) rotation was planned and performed using 6AMSS. The actual translation and rotation were measured with dial gauge and precisional protractor, respectively. Comparison between the planned and actual movements of plastic block for each variable were made using paired t- test. Statistical analysis for X, Y, Z, ∅X, ∅Y and ∅Z movement have shown no significant differences between planned and actual movement (P > 0.05). This indicate that model surgery performed with the aid of the 6AMSS is accurate in 3D translation and rotation. The 6AMSS is practically useful for accurate fabrication of surgical splint for orthognathic surgery.
원태희 ( Tae Hee Won ),전영진 ( Yeong Jin Jeon ) 대한외상학회 2003 大韓外傷學會誌 Vol.16 No.2
Background: Despite growing national attention, traumatic injury remains the most common cause of mortality in children, and the clinical manifestations of blunt chest trauma in children are different from those in adult. Methods: We reviewed retrospectively the cases of 45 children patients who were diagnosed with blunt chest trauma and managed in Mok-dong Hospital, Ewha Women`s University, from August 1995 to April 2003. Patients with a simple chest wall contusion were excluded. Results: The mean age was 6.5 ± 3.1 years, and 3-to 8-year-old children were most common. The main cause of blunt chest trauma was traffic accident (37 cases 82%, P<0.01). Pulmonary contusion was the most common injury (34 cases 76%), followed by rib fracture. Pulmonary contusion, tended to be prevalent at a younger age and rib fractures at a older age. However, this difference was not statistically significant (P>0.05). All patients were managed conservatively for chest injury, and two patients died of severe hypoxemia and hemorrhage. The mortality was 4%. Conclusions: The clinical manifestations of blunt chest trauma in children were different from those in adult, and most patients were managed conservatively with good results. More driver`s attention is required to protect children from traffic accident, especially those involving larger car (vans, trucks, buses, and so on) and during backing a car.
국제 표준 질병 사인 분류를 이용한 외상 중증도 지수 (ICISS)의 개선 방향 고찰
장혜영 ( Jang Hye Yeong ),이동훈 ( Lee Dong Hun ),어은경 ( Eo Eun Gyeong ),전영진 ( Jeon Yeong Jin ),정구영 ( Jeong Gu Yeong ) 대한외상학회 2003 大韓外傷學會誌 Vol.16 No.1
Background: Due to several limitations of the Trauma and Injury Severity Score (TRISS), the ICD-9CM-based Injury Severity Score (ICISS) has recently been proposed as an alternative method. Few limitations are known about the ICISS because of it`s recent a