全州地域의 植生

許智順,吉奉燮 圓光大學校 基礎自然科學硏究所 1986 基礎科學硏究誌 Vol.5 No.1

전주지역의 官束植物은 117科 390屬 559種 1亞種 76變種 9品種, 總 645種類(84栽培種 包含)로 調査되었다. 그 중에서 羊齒植物은 23種類(羊齒植物係數=0.93)로 比較的 적었고, 栽培植物은 84種으로 全體의 13.04%를 차지했다. 또 屬에 대한 種數가 Fisher's Index로 418.8인바 비교적 높은 값이었다. 科別로는 菊花科 植物이 가장 많았다.(전체의 10.4%) 休眠型, 繁殖型, 生育型의 生活形으로 보면 H-D_1-R_5型으로 우리나라 中部 또는 南部地方 一部에서 흔히 볼 수 있는 것이고 生育型은 直立型(e)이 65.8%로 특히 우세하였다. 歸化植物의 種數는 22種類였으며 5年前보다 7種이 더 增加되었다. 그리고 高德山 頂上(603m) 부근에 신갈나무群落, 南固山 주위의 개서어나무群落, 西捿鶴洞과 完山洞 사이의 이팝나무-상수리나무 群落은 分布學上 뜻깊은 것으로 報告한다. Flora and distribution of vascular plants in Chonju district, Chollabuk-do, have studied during 1983 to 1985. The flora was composed of 117 families, 390 genera, 559 species, 1 subspecies, 76 varieties, 9 forma or 645 taxa included 84 cultivars. Among them, 23 species of pteridophyta were identified, Fisher's Index of collected plants represented 418.8, biological type showed H-D_1-R_5, the most abundance of the plants was occupied by compositae and 22 species of naturalized plants had introduced. The girth of the chest(S) of the biggest trees, special species of ecological distribution in Chonju district and actual vegetation map were studied.

요천추 척추 유합술에서 관절수의 차이에 따른 수혈경험

허지순,양태기,정유남 대한수혈학회 2012 大韓輸血學會誌 Vol.23 No.3

Background: A large amount of blood is lost during spinal fusion surgery; therefore, a blood transfusion is required. In this study, we analyzed the amount of transfusion and hemodynamic changes in relation to the count of fusion segments in lumbosacral spinal surgeries. Methods: We analyzed 67 patients who had undergone lumbosacral fusion. They were divided into five groups according to the levels of fusion segments (one level: Group 1, two levels: Group 2, three levels: Group 3, four levels: Group 4 and above three levels: Groups 3+4). Total amounts of transfusion and perioperative hemodynamic changes were compared among each group. Results: Of the total 67 cases, 40 cases were Group 1, 19 cases were Group 2, five cases were Group 3, three cases were Group 4, and eight cases were Groups 3+4. Average volume of Red Blood Cell (RBC) transfusion per operation was 703±463 mL (Group 1), 934±372 mL (Group 2), 1,677±847 mL (Group 3), 1,231±412 mL (Group 4), and 1,509±669 mL (Group 3+4); and average volume of fresh frozen plasma (FFP) per operation was 55±141 mL (Group 1), 108±181 mL (Group 2), 306±368 mL (Group 3), 567±260 mL (Group 4), and 404±317mL (Groups 3+4). Eight patients received transfusion of Platelet Concentrate (PC); each patient received 10 units (400 mL). The preoperative mean level of hemoglobin and platelet was 13.62±1.47 g/dL and 245±60×103/μL,postoperatively, 10.26±1.14 g/dL and 150±46×103/μL. Conclusion: As the fusion segments increase, the need for transfusion of RBC, FFP, and PC increases. Application of the Maximum Surgical Blood Order Schedule (MSBOS) system is required in the planning of spinal fusion,especially in multiple segments. 배경: 척추 유합술을 시행할 때 다량의 출혈이동반될 수 있어 수혈이 요구된다. 본 연구는 요천추부 척추 유합술을 받은 환자에서 고정되는 관절의 분절수의 차이에 따른 수혈량과 혈액학적차이에 대하여 분석하였다. 방법: 요천추 척추 유합술을 받은 67예의 환자를 대상으로 분석하였다. 고정되는 관절의 분절수에 따라 다섯 군으로 나누었으며 한 분절 유합군(1군), 두 분절 유합군(2군), 세 분절 유합군(3군), 네 분절 유합군(4군), 그리고 세 분절 이상 유합군(3+4군)으로 분류하였다. 각 군에서의 수혈된 수혈량과 수술 전후의 혈액학적 변화를 비교하였다. 결과: 대상이 되었던 67예에서 1군은 40예, 2군은 19예, 3군은 5예, 4군은 3예였으며 3+4군은 8예였다. 각각의 군에서 농축적혈구의 수혈량은평균적으로 1군 703±463 mL, 2군 934±372 mL, 3군 1,677±847 mL, 4군 1,231±412 mL 그리고 3+4군 1,509±669 mL이었고, 신선동결혈장의 수혈량은 1군 55±141 mL, 2군 108±181 mL, 3군 306±368mL, 4군 567±260 mL 그리고 3+4군 404±317 mL 이었다. 농축혈소판의 수혈은 전체에서 8예에서시행되었으며 각각의 환자는 400 mL를 수혈받았다. 전체 조사군에서 혈색소의 평균수치는 수술전 13.62±1.47 g/dL, 수술 직후 10.26±1.14 g/dL로확인되었고 혈소판의 평균수치는 수술 전 245±60×103/μL, 수술 직후 150±46×103/μL로 확인되었다. 결론: 고정되는 관절의 분절수가 많을수록 농축적혈구, 신선동결혈장의 수혈량의 요구도가 더많았다. 척추유합술을 계획할 때 관절의 분절수가 많을수록 이에 대비하여 적정한 최대혈액신청량의 준비가 요구된다.

핵영상을 이용한 뇌종양의 악성도 및 Multidrug Resistance 예측에 관한 연구

허지순,조경기,김기용,안영환,안영민,윤수한,조기홍,박찬희 대한신경외과학회 2002 Journal of Korean neurosurgical society Vol.31 No.3

뇌 수술에서의 수혈 경험: 선택적 수술과 응급 수술의 비교

정유남,허지순,이창섭,장지원,김선형,김영리,강성하 대한수혈학회 2011 大韓輸血學會誌 Vol.22 No.3

Background: Blood transfusion is often performed to support successful brain surgery. In this study, we looked at two groups of surgery patients to analyze the transfusion requirements for patients undergoing brain surgery in our hospital. Group A patients received elective surgery, whereby blood products were prepared in advance,and Group B patients required emergency surgery which is often accompanied massive bleeding, and therefore adequate transfusion blood may not be available in advance. Methods: During a one year period, patients who received brain surgery were classified as requiring either elective (Group A) or emergency (Group B) surgery. In each group, operation time and blood transfusion requirements were compared. Results: Of the 35 total patients included in this study, 14 cases were Group A and 21 cases were group B. Average operation time was 4 hours and 13 minutes (253 minutes), and 2 hours and 50 minutes (170 minutes),respectively for Groups A and B. Red Blood Cell (RBC) transfusion was conducted in more than 90% of all patients. Average volume of RBC transfusion per operation was 2.5 units (Group A) and 3.1 units (Group B). Fresh frozen plasma (FFP) was transfused in 21% of Group A patients and in 38% of Group B patients. Platelet Concentrate (PC) was transfused in 19% of Group B patients, only. Conclusion: FFP and PC were more frequently transfused in patients who received emergency surgery than those who received elective surgery. Preparation of, not only RBC, but FFP and PC is required for emergency brain surgery. Therefore, efforts to retain adequate amounts of blood are needed to support emergency brain surgery.

CT/MRI 영상에서의 이미지 추출-분석 시스템

곽호영(Ho-Young Kwak),허지순(Jisoon Huh) 한국컴퓨터정보학회 2014 韓國컴퓨터情報學會論文誌 Vol.19 No.1

오늘날 사용하고 있는 의료용 영상의 대부분은 주로 병변을 확인하기 위한 수단으로 이용되고 있는데, 이러한 의료용 영상을 병변 확인뿐만 아니라 학술적 연구나 외과적 수술 처치를 위한 분석 및 참고 자료로 이용할 수 있다면 의학적 학술 연구에 도움을 줄 수 있으며, 외과적 수술 처치 및 치료에서 선행 시뮬레이션을 통하여 처치 오류를 줄일 수 있다. 따라서 본 논문에서는 의료용 이미지 영상에 대해 해당 영상에서 필요한 부분을 벡터 형식의 점(point cloud)들로 추출하고, 이들 벡터 정보를 이용하여 연구나 진료 및 수술에서 필요한 정보로 가공하여 시뮬레이션이 가능하도록 하는 시스템을 설계하고 구현함으로써 학술적 연구나 환자에 대한 진단 처치에 보다 효율적으로 접근할 수 있는 방법을 제공하고자 하였다. TMost of the medical images that are being used today are to confirm the existence of lesions. These kind of medical images can not only be used to confirm lesions but if we could use it for academic studies or for analysis and reference materials for surgical operations, it could offer great help in medical studies. Furthermore, we could reduce the number of errors in treatment through simulations in the surgical operations and treatments. In this paper, the necessary parts regarding the medical image visuals were extracted through the point cloud and by using the information obtained through it, it manufactures the necessary information for academic studies, diagnoses or operations. By designing and realizing the system which makes simulation possible with the manufactured information, the paper attempts to provide a more effective way to approach academic studies or giving appropriate diagnoses in the treatment of patients.

연속 촬영 이미지를 이용한 Mouse의 운동 능력 평가 시스템

곽호영(Ho-Young Kwak),허지순(Jisoon Huh),이원주(Won Joo Lee) 한국컴퓨터정보학회 2015 韓國컴퓨터情報學會論文誌 Vol.20 No.1

본 논문에서는 연속 촬영 이미지를 이용한 실험용 쥐의 운동 능력 평가 시스탬을 제안한다. 의학이나 수의학 분야에서는 인류의 양질의 삶을 위해 mouse를 이용한 동물실험을 실시하고 있다. 특히 실험용 쥐(mouse)를 이용한 실험 중에는 인위적인 부상(injury)을 만들고, 다양한 처치를 통하여 그 부상에서 회복되는 정도를 측정하는 실험을 많이 하고 있다. 이러한 실험에서 그 동안의 전통적인 운동량 측정 방법은 사람이 직접 관찰하는 방법으로 이루어지고 있었다. 제안한 시스템은 실험용 쥐에 대한 움직임을 정해진 단위 시간동안 연속 촬영을 실시하고, 이 연속 촬영된 이미지에서 mouse의 외곽선을 point cloud로 추출한다. 추출된 point cloud를 이용하여 mouse의 몸통에 대한 내부 외곽선(interior contour line)을 다시 추출한 후, 이를 이용하여 그 중심점을 구하고, 이들 중심점들을 연결하여 거리를 계산하여 누적함으로써 mouse가 단위 시간동안 이동한 총 거리를 자동 계산하도록 하는 시스템을 설계하고 구현한다. In this paper, we propose a locomotor evaluation System for mouse based on continuous shooting images. In the field of veterinary medicine and animal studies are subjected to using the mouse for the quality of human life. In particular, during the experiments using the artificially created mice injury, through a variety of scoring and a lot of experiments to measure the extent of recovery from the injury. The traditional method of measuring the quantity of exercise while in this experiment was made of a method for directly observing person. The proposed system performs the continuous shooting per unit of time specified by the movement of the mouse is extracted from a continuous image shooting with the outline of a mouse point cloud. And using the extracted point cloud to extract again the inner contour of the body of the mouse. So using the new point cloud obtained its center, Then, using the center point calculated by accumulating the distance between two points on locomotor evaluation system design and implement to obtain the total distance the mouse moves over a unit of time.

로봇 수술을 위한 경추 척추경에 대한 이상적 궤적의 측정

곽호영(Ho-Young Kwak),허지순(Jisoon Huh),이원주(Won Joo Lee) 한국컴퓨터정보학회 2017 한국컴퓨터정보학회 학술발표논문집 Vol.25 No.2

The Design and Implementation of Mouse Activity Measurement System using Infrared Sensor

곽호영(Ho-Young Kwak),허지순(Jisoon Huh),이원주(Won Joo Lee) 한국컴퓨터정보학회 2016 韓國컴퓨터情報學會論文誌 Vol.21 No.12

In this paper, we design and implement a mouse movement measurement system using an infrared sensor called MAMS (Mouse Activity Measurement System). Unlike existing systems, MAMS can measure movements between IREDs. MAMS is removable allowing convenient portability and is also low cost. MAMS automatically measures mouse activity during a pre-set time interval. Since the measured data can be easily stored in a computer system, it is much simpler and more efficient than the Ugo 47420 model. Moreover, MAMS can be used in medical and veterinary field to eliminate manual observations.

Implementation of Cervical Pedicle Surgical Guide for Safe Surgery

Ho-Young Kwak(곽호영),Jisoon Huh(허지순),Won-Joo Lee(이원주) 한국컴퓨터정보학회 2017 韓國컴퓨터情報學會論文誌 Vol.22 No.12

Screw insertion surgery is frequently required among surgical procedures. Especially, very careful attention should be paid to the insertion of screw in the operation of the cervical vertebra. Therefore, there is a need for a guide that allows the surgeon to reliably and promptly perform treatment by calculating the desired insertion angle and length for screw insertion. In this study, the center and direction of the pedicle were calculated through 3D modeling and 3D vector numerical analysis using the CT or MRI image of the patient for the safe operation of the guide, and based on this, After that, we will implement surgical guide based on this.

무선 통신과 GPS 기술을 결합한 반려견 분실 방지 장치의 설계 및 구현

곽호영(Ho-Young Kwak),장진욱(Jin-Wook Chang),허지순(Jisoon Huh) 한국컴퓨터정보학회 2019 韓國컴퓨터情報學會論文誌 Vol.24 No.2

Recently, as the number of families raising dogs has increased, cases of lost dogs have frequently occurred. According to US statistics, 5% of the total dogs are reported to be alive, with only 18% reporting to their owners. Therefore, a device for preventing the loss of dogs is needed, and the demand for the market is rapidly growing. Therefore, it is necessary to develop a lost device for dogs. In this paper, we developed a loss prevention device that combines low-power broadband wireless communication technology, LoRa communication method, and GPS positioning technology. The result of this study is expected to prevent the loss of dogs. It is also expected that social problems will reduce the problem of lost dogs.