경부 손상 환자에서의 상처 탐침

예진봉 ( Jin Bong Ye ),설영훈 ( Young Hoon Sul ),문윤수 ( Yun Su Mun ),고승제 ( Seung Je Go ),권오상 ( Oh Sang Kwon ),구관우 ( Gwan Woo Ku ),이민구 ( Min Koo Lee ) 대한외상학회 2015 大韓外傷學會誌 Vol.28 No.3

Neck trauma is a relatively uncommon but can be a life-threatening injury. Several guidelines for neck trauma is established to recommend a proper management such as no clamping of bleeding vessels, no probing of wounds, Trendelenberg position for preventing venous air embolism. Here, we present a regretful case of 49-year-old man with neck trauma presenting undesired bleeding after probing of wound, and then discuss about treatment guildeline for neck trauma with a review. [ J Trauma Inj 2015; 28: 198-201 ]

둔상성 간손상 환자의 손상 통제술 후 발생한 심낭압전

예진봉 ( Jin Bong Ye ),설영훈 ( Young Hoon Sul ),고승제 ( Seung Je Go ),권오상 ( Oh Sang Kwon ),김중석 ( Joong Suck Kim ),박상순 ( Sang Soon Park ),구관우 ( Gwan Woo Ku ),이민구 ( Min Koo Lee ),김영철 ( Yeong Cheol Kim ) 대한외상학회 2015 大韓外傷學會誌 Vol.28 No.3

The primary and secondary survey was designed to identify all of a patient’s injuries and prioritize their management. However 15 to 22.3% of patient with missed injuries had clinically significant missed injuries. To reduce missed injury, special attention should be focused on patients with severe anatomical injury or obtunded. Victims of blunt trauma commonly had multiple system involvement. Some reports indicate that inexperience, breakdown of estalished protocol, clinical error, and restriction of imaging studies may be responsible for presence of missed injury. The best way of reducing clinical significant of missed injuries was repeated clinical assessment. Here we report a case of severe blunt hepatic injury patient and pericardial injury that was missed in primary and secondary survey. After damage control surgery of hepatic injury, she remained hemodynamically unstable. Further investigation found cardiac tamponade during intensive care. This was managed by pericardial window operation through previous abdominal incision and abdominal wound closure was performed. [ J Trauma Inj 2015; 28: 211-214 ]

DEA를 이용한 전복종자 생산업체의 경영효율성 분석

오예진 ( Ye-jin Oh ),이남수 ( Nam-su Lee ),김대영 ( Dae-young Kim ) 한국수산경영학회 2020 수산경영론집 Vol.51 No.1

The production of abalone seed has grown and been specialized since the 2000s with the growth of the abalone farming industry. Despite the increase in the production of abalone seeds, the sales volume of abalone seeds remained flat and competition among producers increased. This paper will analyze the management efficiency of abalone seed production fishery to diagnose the management status and improve the abalone seed production efficiency. In addition, this study is the result of the basic research on the abalone seed industry and it is meaningful to prepare a platform for further research since the management status survey and the management efficiency survey of abalone seed production fishery have not been conducted until now. The data on the farmed fish prices of abalone seeds were collected from surveys of sample fish as part of the fish seed observation project conducted by the Fisheries Outlook Center (FOC) of Korea Maritime and Fisheries Development Institute (KMI). Management efficiency analysis utilizes DEA (Data Envelopment Analysis) model. The DEA model was analyzed by classifying into CCR (Super-CCR), BCC, and SBM (Super-SBM) models according to the assumptions taking into account the characteristics of the industry. The slack considered in the SBM model was judged as possible decreases in input variables and increase in output variables. The average efficiency from the CCR model was analyzed to be 69%. The BCC model was classified into input and output orientations, and the average efficiency was 79% and 75%, respectively. There were seven production fisheries with an SE value of 1 or more, which remained unchanged in terms of size and could be benchmarked. The average efficiency of the SBM model was 59% for CRS and 66% for VRS. Under the VRS assumptions, the variable increase/decrease efficiency analysis shows that labor costs can be reduced by 37.3%, facility capacity by 18.8%, and operating costs by 8.5%. In order to improve management efficiency, Wando needs to reduce labor and management costs. In Jindo region, sales increase as well as labor cost reduction is urgent. In other regions, reduced facilities and increased sales are recommended.

1018 nm 파장의 고출력 Yb 광섬유 레이저

오예진,박혜미,박종선,박은지,김진필,정훈,김지원,김태형,정성묵,김기혁,양환석,Oh, Ye Jin,Park, Hye Mi,Park, Jong Seon,Park, Eun Ji,Kim, Jin Phil,Jeong, Hoon,Kim, Ji Won,Kim, Tae Hyoung,Jeong, Seong Mook,Kim, Ki Hyuck,Yang, Hwan Seok 한국광학회 2021 한국광학회지 Vol.32 No.5

본 논문에서는 단파장 영역인 1018 nm에서 최고 출력 626 W를 가진 고출력 이터븀(ytterbium, Yb) 첨가 광섬유 레이저에 대해 보고한다. Yb 광섬유 레이저에서 이득률이 낮은 단파장 영역인 1018 nm에서 레이저를 발진시키기 위한 조건을 이론적으로 조사해보고, 광섬유 끝 단단면 조건에 따른 되먹임 신호를 측정하여 안정적인 레이저 발진 조건에 대하여 연구하였다. 그 결과를 바탕으로 제작한 단일 공진기 구조의 Yb 광섬유 레이저 시스템으로부터 729 W의 펌프 출력에서 최고 출력 626 W의 1018 nm 파장 레이저 출력을 안정적으로 얻을 수 있었으며 그때 기울기 효율은 86.6%로 측정되었다. 본 연구에서 얻은 1018 nm 파장의 Yb 광섬유 레이저 결과는 지금까지 국내에서 보고된 1030 nm 이하 단파장에서 발진된 Yb 광섬유 레이저 출력 중 가장 높은 출력이며, 세계적으로도 상용 Yb 광섬유와 광부품을 사용한 결과 중 가장 높은 출력에 해당된다. 그리고 향후 더 높은 출력을 얻기 위한 방법에 대해 논의하고자 한다. High-power continuous-wave operation of a Yb-doped double-clad fiber laser at 1018 nm, pumped by high-power diode lasers at 976 nm, is reported. Based on numerical calculation of the gain and laser signal power along the length of the Yb fiber, it is found that robust operation at 1018 nm can be achieved for a high Yb³⁺-ion excitation density greater than 11.5%, accompanied by high suppression of the feedback from the fiber's end facet. The Yb fiber laser constructed in house yields 626 W of continuous-wave output at 1018 nm for 729 W of incident pump power, corresponding to a slope efficiency of 86.6%. The prospect for power scaling is considered.

3.0 kW 고출력 발진 단일 모드 Yb 광섬유 레이저

박종선,박은지,오예진,정훈,김지원,정예지,이강인,이용수,조준용,Park, Jong Seon,Park, Eun Ji,Oh, Ye Jin,Jeong, Hoon,Kim, Ji Won,Jung, Yeji,Lee, Kangin,Lee, Yongsoo,Cho, Joonyong 한국광학회 2021 한국광학회지 Vol.32 No.4

본 논문에서는 최고 출력 3.0 kW 발진 단일 모드 이터븀(ytterbium, Yb) 첨가 광섬유 레이저에 대해 보고한다. 고출력 광섬유 레이저의 출력을 제한하는 주된 요소인 유도 라만 산란 문턱 값과 광섬유 내 온도 분포를 계산하고 이를 바탕으로 양방향 펌핑 구조의 단일 공진기 Yb 광섬유 레이저 시스템을 제작하였다. 그 결과 4.1 kW의 펌프 출력에서 최고 출력 3.0 kW의 레이저 빔을 얻을 수 있었고, 그때의 기울기 효율은 81.5%로 계산되었다. 최고 출력에서 측정된 출력 빔의 빔질(M²)은 1.26으로 단일 공간 모드 빔 출력 특성을 가지고 있음을 확인하였고, 유도 라만 산란 및 횡모드 불안정 현상은 관측되지 않았다. 본 연구에서 얻은 광섬유 레이저 출력 결과는 지금까지 국내에서 보고된 다이오드 레이저로 펌핑한 광섬유 레이저 출력 중 가장 높은 출력이며, 향후 더 높은 출력을 얻기 위한 방법에 대해 논의하고자 한다. We report high-power continuous-wave operation of a Yb-doped fiber laser at 1070 nm, pumped by high-power laser diodes at 976 nm. Based on theoretical calculation of the stimulated Raman scattering and temperature distribution in the fiber, we construct a bidirectionally pumped Yb-fiberlaser system incorporating a pair of fiber Bragg gratings and a cladding light stripper. The fiber laser yields 3.0 kW of continuous-wave output at 1070 nm in a diffraction-limited beam with M² ≈ 1.26 for 4.1 kW of incident pump power, corresponding to a slope efficiency of 81.5%. The prospects for further power scaling are discussed.

한방치료로 호전된 Tolosa-Hunt 증후군 치험 1례

오재준,조민정,신초영,조은영,주예진,정혜미,윤철호,Oh, Jai-Joon,Jo, Min-Jung,Shin, Cho-Young,Jo, Un-Young,Joo, Ye-Jin,Jeong, Hye-Mi,Yoon, Cheol-Ho 대한한방내과학회 2009 大韓韓方內科學會誌 Vol.30 No.2

Tolosa-Hunt syndrome is an idiopathic syndrome characterized by the formation of granulation tissue in the anterior cavernous sinus or superior orbital fissure, producing a painful ophthalmoplegia. We experienced a 66-year-old woman whose conditions improved through oriental medical treatment. We treated the patient with herbal medicine Liqiqufeng-san (理氣祛風散) and electro-acupuncture at Cuanzhu (瓚竹, BL2) and Yuyao (魚腰, Extra) acupuncture points with 1${\sim}$50Hz for 15min. After treatment, the patient's symptoms improved considerably. This result suggests that oriental medical treatment has good effect on Tolosa-Hunt syndrome.

초음파를 이용한 슬러지 감량화와 중금속 용출

오주연 ( Joo Yeon Oh ),권혜옥 ( Hye Ok Kwon ),이윤세 ( Yun Se Lee ),박은정 ( Eun Jeong Park ),김철수 ( Chul Su Kim ),손희식 ( Hee Sik Son ),예진 ( Jin Ye ),최성득 ( Sung Deuk Choi ) 한국환경분석학회 2012 환경분석과 독성보건 Vol.15 No.2

In this study, wastewater sludge was collected at a chemical plant in Ulsan, Korea, and the effect of ultrasonic treatment on sludge reduction and heavy metal leaching was investigated. In lab-scale experiments, the amount of sludge decreased with increasing ultrasonic irradiation intensity (100~600 W) and time (0.5~30 min). A pilot-scale ultrasonic reactor made in this study showed the highest performance (i.e., 46.2% of sludge reduction) in a batch mode operation. These results demonstrated that the ultrasonic treatment was useful for the reduction of sludge. On the other hand, the levels of heavy metals (Cd, Pb, Cu, and Zn) in supernatants of the sludge samples after the ultrasonic treatment substantially increased, addressing the need for proper management of toxic chemicals after dehydration of sonicated sludge. The reason for the sludge reduction and heavy metal leaching after the ultrasonic treatment was the disintegration of sludge flocs and cell walls. Therefore, an advanced ultrasonic technology considering both sludge reduction and leaching of toxic chemicals should be developed for practical applications.

비전 트랜스포머 기반 디지털 병리 대장암 진단 모델

오주헌(Ju Heon Oh),김경은(Kyung Eun Kim),송보람(Bo Ram Song),이주천(Ju Cheon Lee),이재웅(Jae Ung Lee),전예진(Ye Jin Jeon),Vuong Thi Le Trinh,Syed Farhan Abbas,곽진태(Jin Tae Kwak) 대한전자공학회 2022 대한전자공학회 학술대회 Vol.2022 No.6

베타카로틴 강화 GM콩과 야생콩의 교잡종 종자 특성 평가

오성덕(Sung-Dug Oh),장예진(Ye-Jin Jang),박수윤(Soo-Yun Park),서상재(Sang Jae Suh),이범규(Bumkyu Lee) 한국잡초학회·한국잔디학회 2020 Weed & Turfgrass Science Vol.9 No.2

본 연구에서는 야생콩과 베타카로틴 강화콩의 교잡으로 형성된 교잡종의 종자 및 생육 특성과 월동성을 조사하여 교잡종의 잡초화 가능성을 평가하고자 하였다. 야생콩과 베타카로틴 강화 콩을 개화기 일치 등의 인위적으로 교잡한 결과 최종 교잡율은 0.21% 로, 8개체의 교잡종이 선발되었다. 교잡종은 생육 형태는 모본인 야생콩과 유사한 형태를 보였으며, 형성된 협수와 종자 수 및 종자의 크기는 야생콩과 베타카로틴 강화 콩의 중간 형질을 나타냈다. 반면, 종자의 발아 속도는 야생콩보다 크게 증가하여 베타카로틴 강화콩과 유사한 속도를 보였다. 교잡종은 표토조건에서 3개월간 월동한 경우 야생콩과 비슷한 수치의 월동성을 보였으나, 이를 제외한 나머지 조건에서는 야생콩보다 낮은 월동휴면성을 보였다. 베타카로틴 강화콩과 야생콩간의 낮은 교잡율과 월동휴면성을 바탕으로 교잡종이 환경 내 방출되어 생태계 교란을 유발할 가능성은 낮지만, 다양한 요인을 고려하여 장기적인 교잡 후대종의 도입 단백질 활성 평가 및 잡초화 가능성 평가 등을 비롯한 환경 안전성 평가가 필요할 것으로 사료된다. As the cultivation area for genetically modified (GM) crops is increasing continuously, the concerns about the environmental release of GM crops are also growing. Therefore, we conducted this study to verify gene flow from GM soybean, β-carotene enhanced transgenic soybean, to wild-type soybean and analyze the characteristic of hybrid soybean. The hybridization rate between β-carotene enhanced soybean and wild-type soybean was 0.21%. The hybrid soybean showed the highest value on stem length, number of branches and number of nodes than the β-carotene soybean and wild-type soybean. The seeds of hybrid soybean had intermediate characteristics between β-carotene enhanced soybean and wildtype soybean in seed length, seed width, seed weight and seed coat color. The germination time of hybrid soybean was faster than wild-type soybean while the wild-type was similar with β-carotene enhanced soybean. The hybrid soybean showed the lower over-wintering dormancy rates than wild-type soybean after 5 months, and the β-carotene soybean had extremely low or no dormancy rates on all conditions. These results indicate that the hybrid soybean has intermediate characteristics between their parents and will be useful for research in management of GM crops and hybrid crops.

고온스트레스가 일반 양돈농가의 돼지 생산성 및 생리 변화에 미치는 영향

오서영(Seo Young Oh),정용대(Yong Dae Jeong),김두완(Doo Wan Kim),민예진(Ye Jin Min),유동조(Dong Jo Yu),김기현(Ki Hyun Kim),김영화(Young Hwa Kim) 한국산학기술학회 2017 한국산학기술학회논문지 Vol.18 No.7

본 연구는 고온스트레스가 일반 양돈농가의 육성돈 및 비육돈의 성장단계별 생산성 및 혈액내 생리지표에 미치는 영향 구명하고자 실시하였다. 공시동물은 각각 180두씩 3원교잡(L×Y×D)의 육성돈 및 비육돈을 사용하였고 처리구는 적온기와 고온기로 나누었으며 여름철을 고온기, 가을철을 적온기로 상정하였다. 육성돈과 비육돈은 평사에 처리당 3반복, 반복당 30두씩 배치하였다. 사육기간동안 온습도변화를 통해 열량지수를 산출하였고 생산성 및 생리적 변화는 성장단계별로 확인하였다. 적온기의 평균온도와 열량지수는 각각 16.8℃, 61.4이며 고온기의 평균온도는 25℃ 그리고 열량지수는 74.3을 나타냈다. 육성돈의 체중, 평균일당증체량 및 평균사료섭취량은 고온기에서 적온기보다 감소했다(p<0.01). 또한, 비육돈의 모든 생산지표들은 적온기에 비해 고온기에서 저하됐다(p<0.01). 육성돈의 혈중 백혈구와 호중구는 적온기보다 고온기에서 감소했다(p<0.05). 비육돈의 혈구조성은 온도에 영향을 받지 않았다. 육성돈의 혈중 생화학적특성은 변화가 없으며 적온기에 비해 고온기의 비육돈은 혈중 총단백질 및 비에스테르형지방산 증가했고 글루오스는 감소했다. 면역글로불린 G와 코르티솔은 육성돈에서는 차이가 없으며 비육돈은 고온기에서 코르티솔이 증가했다(p<0.01). 본 실험결과, 고온은 돼지의 생산성을 저해시키며 일부 혈액내 생화학적 지표에 영향을 미친다. 그리고, 온도조절을 통한 고온스트레스 영향이 아닌 계절에 따른 사육온도에 의한 생산성저감을 의미하므로 향후 양돈농가에서 고온스트레스를 조절할 수 있는 사양기술 및 사료개발에 유용한 정보로 활용될 수 있을 것으로 사료된다. This study investigatedthe effect of heat stress on the performance and blood characteristics in commercial pig farms. A total of 180 growing pigs and 180 finishing pigs were assigned to twotreatments consisting of thermal-neutral period(TNP) and high-temperature period(HTP) with three replications in floor pen, respectively. Feeding trials in the TNP and HTP were individually performedin autumn and summer seasons, respectively. Temperature-humidity index(THI) was calculated by temperature and humidity. Performance and physiological responses were identified per growth stages and feeding trial. Average temperature and THI were 16.8℃and 61.4 at the TNP, and 25℃and 74.3 at the HTP, respectively. Growing pigs in HTP exhibited lower BW, ADG and ADFI than in TNP(p<0.01). Similarly, finishing pigs showed lower growth parameters in HTP than in TNP(p<0.01). Lymphocytes and neutrophils of growing pigs were lower in HTP than in TNP(p<0.05). The serum T-PRO and NEFA in finishing pigs were higher in HTP than in TNP(p<0.05). In HTP, finishing pigs had higher cortisol levels than in TNP. Therefore, HTP can negatively influence growth performance and nutritionalmetabolism inpigs. Our results may provide useful information for developing feeding programs and diets to controlheat stress for swine farms.