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차압식 유량계를 실장을 위한 Single Capacitive Type Differential 압력 센서 개발
신규식,송상우,이경일,이대성,정재필,Shin, Kyu-Sik,Song, Sangwoo,Lee, Kyungil,Lee, Daesung,Jung, Jae Pil 한국마이크로전자및패키징학회 2017 마이크로전자 및 패키징학회지 Vol.24 No.1
In this paper, we have developed a differential pressure flow sensor designed as a single capacitive type. And the sensor was fabricated using a MEMS process. Differential pressure flow sensors are the most commonly used sensors for industrial applications. The sensing diaphragm and bonding joint of the MEMS pressure sensor are easily broken at high pressure. In this paper, we proposed a structure in which the diaphragm of the sensor was not broken at a pressure exceeding the proof pressure, and the differential pressure sensor was designed and manufactured accordingly. The operating characteristics of the sensor were evaluated at a pressure three times higher than the sensor operating pressure (0-3 bar). The developed sensor was $3.0{\times}3.0mm$ and measured with a LCR meter (HP 4284a) at a pressure between 0 and 3 bar. It showed 3.67 pF at 0 bar and 5.13 pF at 3 bar. The sensor operating pressure (0-3 bar) developed a pressure sensor with hysteresis of 0.37%. 최근 계측기의 소형화, 전자화에 따라 차압식 유량계의 경우 기존에 기계가공을 통해 개발하던 센서부를 전자식 MEMS 차압센서로 대체하려는 많은 노력이 있으나, MEMS 차압센서의 경우 고압이 인가시 실리콘 다이아프램의 파괴 및 센서의 접합부의 파괴가 발생하는 문제점이 있다. 따라서 본 논문에서는 proof pressure 이상의 압력에서 센서의 다이아프램이 파괴되지 않는 구조를 제안하였으며, 그에 따른 차압식 압력센서를 설계 및 제작하였다. 센서 동작압력(0-3 bar)의 3배 이상의 압력에서 센서의 동작특성을 평가하였다. 개발된 센서는 $3.0{\times}3.0mm$이며, 0~3 bar 사이의 압력에서 LCR meter (HP 4284a)로 측정한 결과 3.67 pF at 0bar, 5.13 pF at 3 bar를 나타내었으며, 센서의 동작압력(0-3 bar)에서 0.37%의 hysteresis를 나타내는 압력센서를 개발하였다.
신규식,김태훈,정현희,조수헌,이경호,Shin, Kyu-Sik,Kim, Taehun,Jung, Hyun Hee,Cho, Soo-Hun,Lee, Kyoungho 한국산업보건학회 2017 한국산업보건학회지 Vol.27 No.3
Objectives: It is difficult to identify exposure factors in the semiconductor industry due to low exposure levels to hazardous substances and because various processes take place in fabrication (FAB). Furthermore, a single worker often experiences a variety of job histories, so it is difficult to classify similar exposure groups (SEG) in the semiconductor industry. Therefore, we intend to develop a new exposure index, the period of working in FAB, that is applicable to the semiconductor industry. Methods: First, in specifying the classification of jobs, we clearly distinguished whether they were FAB workers or non-FAB workers. We checked FAB working hours per week through questionnaires administered to FAB workers. We derived an exposure index called FAB-Year that can represent the period of working in FAB. FAB-Year is an index that can quantitatively indicate the period of working in FAB, and one FAB-Year is defined as working in FAB for 40 hours per week for one year. Results: A total of 8,453 persons were surveyed, and male engineers and female operators occupied 90% of the total. The average total years of service of the subjects was 9.7 years, and the average FAB-Year value was 6.8. This means that the FAB-working ratio occupies 70% of total years of service. The average FAB-Year value for female operators was 8.4, for male facility engineers it was 7.7, and for male process engineers it was 3.5. A FAB-Year standardization value according to personal information (gender, job group, entry year, retirement year) for the survey subjects can be calculated, and standardized estimation values can be applied to workers who are not participating in the survey, such as retirees and workers on a leave of absence (LOA). Conclusions: This study suggests an alternative method for overcoming the limitations on epidemiological study of the semiconductor industry where it is difficult to classify exposure groups by developing a new exposure index called FAB-Year. Since FAB-Year is a quantitative index, we expect that various approaches will be possible in future epidemiological studies.
역사적 감각을 반영한 지하철역사 쇄신과 장소성 복원에 관한 연구 -광희문성곽일대의 복원과 연계한 동대문역사문화공원역의 제안을 중심으로-
신규식(Shin, Kyu Sik),구영민(Koo, Young Min) 대한건축학회 2019 대한건축학회 학술발표대회 논문집 Vol.39 No.2
The study departs from the criticism on the historical restoration heading for inextinguishable Antiquity under the cloak of recovering the urbanity, which eventually resulted in uncultured and ahistoric conduct destroying individual memory of the city for having collective and political urban identity. Targeting a deteriorated residential area located between the Dongdaemun Design Plaza and the Gwangheemun Fortress Park that has been restored in the extention of the Dongdaemun fortress Park, the study attempts to develop programs that represent the presence of the past by linking the fragments of old castle with the neighboring subway stations, to graft the pattern of real life into the historical site, and finally to propose an alternative scheme that makes the history itself turn into the present urban fabric.
Poly-silicon IR source의 thermal stress 및 방사특성 평가
신규식(Kyu-Sik Shin),이대성(Dae-Sung Lee),황학인(Hak-In Whang) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
본 연구에서는 적외선 가스 센서용 IR source에 대한 연구를 진행하였다. MEMS 공정을 이용하여 poly-silicon을 IR source의 발열체로 사용하였다. Chip size는 2×2㎜ 이며 membrane의 면적은 1×1㎜로 설계, 제작 하였다. 제작된 IR source의 적외선 방출 특성을 적외선 카메라를 이용하여 관찰하 였으며, 같은 온도에서의 thermal stress에 대한 관찰도 진행하였다.
복강경하 질식 전자궁적출술 (LAVH) 763예의 임상적 고찰
신규식 ( Kyu Sik Shin ),김면수 ( Myeon Soo Kim ),구선영 ( Seon Yeong Ku ),김유리 ( Yu Ri Kim ),김지은 ( Jee Eum Kim ),곽정상 ( Jung Sang Kwak ) 대한산부인과학회 2006 Obstetrics & Gynecology Science Vol.49 No.9
목적: 본원에서 실시된 복강경하 질식 전자궁적출술 763예를 보고하고, 이를 통해 그 유용성과 안전성, 잇점 등에 대해 연구하고자 한다. 연구 방법: 2000년 1월부터 2006년 2월까지 본원 산부인과에서 복강경하 질식 전자궁적출술을 받은 763명의 환자를 대상으로 하였다. 평균나이, 출산력, 개복수술의 기왕력, 수술적응증, 수술시간, 자궁무게, 혈색소의 변화, 입원기간, 동반시행한 수술, 합병증 등을 비교하였다. 결과: 평균연령은 45.7±7.1세였다. 평균 출산력은 2.5±1.2회였다. 평균체중은 58.59±9.5 ㎏였다. 수술의 적응증으로는 자궁근종 (45.8%)이 가장 많았으며, 자궁선근증 (16.1%), 두 가지가 혼합된 형태 (26.21%)가 대부분을 차지했다. 수술의 기왕력으로는 난관결찰술이 가장 많았고, 평균수술시간은 87.5±45.7분, 평균혈색소변화는 1.1±0.7 g/㎗, 평균자궁무게는 251.34±131.5 gm, 재원기간은 6.15±0.94일 이었다. 동시에 시행한 수술로는 자궁부속기수술이 제일 많았고, 합병증은 4.3%에서 나타났다. 결론: 복강경하 질식 전자궁적출술은 안전하고 효과적인 자궁적출방법이며, 수술술기의 발달과 내시경 도구의 발전으로 더욱더 복식 전자궁적출술을 대체할 수 있을 걸로 보인다. Objective: To report our clinical experience with 763 cases of laparoscopic assisted vaginal hysterectomy (LAVH) and to evaluate the efficacy and advantage of LAVH. Methods: From Jan. 2000 to Feb. 2006, 763 cases of LAVH were performed at the Department of Obstetrics and Gynecology. we analyzed the results regard to the age, parity, surgical indication, previous abdominal surgery, operation time, weight of uterus, change of hemoglobin, hospital stay, concomitant procedures, and complication. Results: The mean age was 45.7±7.1 years. The mean parity was 2.5±1.2. The average weight of patients was 58.59±9.5 ㎏. Leiomyoma was the most common surgical indication. Tubal ligation was the most common previous surgery. The mean operation time was 87.5±45.7 minutes. The mean hemoglobin change was 1.1±0.7 g/㎗. The mean uterine weight was 251.34±131.5 gm. The mean hospital stay was 6.15±0.94 days. The complication rate was 3.4% (26 cases); bladder injury (7 cases), ureter injury (3 cases), vault bleeding (3 cases), trochar site bleeding (13 cases). Conclusions: LAVH is safe and effective surgical procedure for hysterectomy. The improvement of surgical skill and laparoscopic instrument can make more replace Total abdominal hysterectomy with LAVH.
스토리텔링의 적용을 통한 건축 프로그램의 현대적 해석에 관한 연구
진채린(Jin, Chae-Rin),신규식(Shin, Kyu-sik),구영민(Koo, Young-Min) 대한건축학회 2020 대한건축학회 학술발표대회 논문집 Vol.40 No.2
Program in architecture has been used as function after the advent of the 18th century to modern period. This has caused the problem of fixing and over-standardizing program and spatial composition in certain way, thus not being able to accept various activities of the users. As cities and society have become more complicated after modern period, attempts have been made to reinterpret program in aware of these problems. Under these circumstances, the study, by applying the concept of storytelling used in narrative studies to the program, attempts to explore alternative interpretation and application of program in contemporary architecture. The study attempts finally to seek out the new architectural possibilities of the program through concept and properties of storytelling, and possible relations with the program.
난소에서 일차적으로 기원한 저등급 자궁내막기질육종 1예
이우희 ( Woo Hee Yi ),신규식 ( Kyu Sik Shin ),제구화 ( Goo Hwa Je ),이화선 ( Hwa Sun Lee ),백경돈 ( Kyung Don Baik ) 대한산부인과학회 2012 Obstetrics & Gynecology Science Vol.55 No.9
자궁내막기질육종은 자궁육종의 비교적 드문 형태로 자궁에서 발생하는 악성 종양의 약 0.2%를 차지하고 있다. 저등급 자궁내막기질육종의 약 40%에서는 자궁외 부위에 전이된 상태로 진단된다. 난소에서 발생하는 자궁내막기질육종은 매우 희귀한 질환이며, 많은 경우에서 자궁내막증 또는 자궁에서 유사한 종양이 발견된다. 저자들은 난소에만 국한되어 명확히 난소 기원이라 할 수 있는 저등급 자궁내막기 질육종 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Endometrial stromal sarcoma (ESS) is a relatively rare form of uterine sarcoma. ESS of the myometrium compose just 0.2% of uterine malignant tumors, Low-grade ESS has extended beyond the uterus in 40% of cases at the time of diagnosis. ESS of ovary is very rare. Most of ovarian ESS is concomitant with endometriosis or same tumor in uterus. We have experienced a primary ovarian low-grade ESS, and that sarcoma is localized in ovary. So, we report this case with review of literature.