고양이의 Toxoplasma 抗體價 測定 및 腸內 奇生蟲 感染에 關한 硏究

辛大煥,金明海,李英河,羅榮彦 충남대학교 의과대학 지역사회의학연구소 1988 충남의대잡지 Vol.15 No.2

In order to confirm the intestinal helminthes, protozoa and Toxoplasma antibody titers from 41 cats, author performed the autopsy, stool examination, and Sabin & Feldman dye Test. 1. Total infection rates were 68.3%, and double infection rates were 29.3%. From 41 cats, 8 species were identified to Isospora felis(2.4%), Toxocara cati(7.3%), Ancylostoma sp(2.4%), Taenia taeniaeformis(51.2%), Diphyllobothrium mansoni(19.5%), Hymenolepis nana(2.4), Clonorchis sinensis (7.3,%), and metagonmus yokogawai(4.9%). 2. Habored region of each parasites was mainly small intestine, especially duodenum, and only Clonorchis sinensis was harbored in liver and bile duct. 3. Egg occurrence rate was 33.3% (T. taeniaeforis), 66.7(C. sinensis), and 100%(D. mansoni, M. yokogawai, I. felis). 4. Sabin & Feldman dye test titer was positive reaction in 14 cases corresponding to 34.190, and 27 cases were considered as negative.

유제품으로부터 Bifidobacteria의 선발 및 계수를 위한 선택배지

신명수,이정준,서인영,나석환,백영진 한국산업미생물학회 1994 한국미생물·생명공학회지 Vol.22 No.2

유제품에서 다른 유산균들과 혼합하여 사용되고 있는 bifidobacteria를 선발하고 계수하기 위하여 두가지 선택배지를 제조하였다. 하나는, phage의 숙주에 대한 감염 특이성을 이용한 것으로서 bifidobacteria와 혼합되어 있는 다른 유산균을 숙주로 하는 phage를 배지에 첨가하여 숙주 유산균을 용균시킴으로써 bifidobacteria에 대한 선택 배지로 사용하는 것이다. 즉, bifidobacteria와 L. casei HY 2782가 혼합된 유제품에서, L. casei HY 2782를 숙주로 하는 J1 phage를 첨가한 BL 배지를 사용하여 bifidobacteria를 계수한 결과, 완전하게 bifidobacteria만을 계수할 수 있었다. 따라서 항생제를 함유하는 선택배지가 아닌 새로운 선택배지로서 그 응용가능성을 제시하였다. 둘째로는 항생제 Tetracycline(1 ㎍/㎖)을 첨가한 선택배지로서 상업적으로 사용되는 bifidobacteria 균주의 성장에는 영향을 주지 않는 반면, Str. salivarius subsp. thermophilus, L. acidophilus, 그리고 L. casei 등의 성장은 억제하였다. 이러한 결과 tetracycline을 사용한 선택배지는 다른 항생제 배지들보다 유제품에 있는 bifidobacteria의 생균수를 정확히 표현해 주었다. Phage utilizing medium and BL agar supplemented with antibiotic Tc(tetracycline) were developed as selective media for the isolation and counting of bifidobacteria in dairy products. The former was based on the host specificity of phage. When bifidobacteria and Lactobacillus casei HY 2782 were mixed together in dairy product, L. casei HY 2782 was lysed by J1 phage which has host specificity to L. casei HY 2782 whereas bifidobacteria grew well on the selective medium added with J1 phage. The latter was found to inhibit the growth of S. salivarius subsp. thermophilus, L. acidophilus, and L. casei, but commercial bifidobacteria grew well in Tc-containing BL agar.

MIORPA: Middleware System for Open-Source Robotic Process Automation

Myeong-Ha Hwang,Ui-Kyun Na,Seungjun Lee,ByungJoo Cho,Yeri Kim,DongHyuk Lee,JiKang Shin 한국정보과학회 2020 Journal of Computing Science and Engineering Vol.14 No.1

Introduction of robotic process automation (RPA) in simple repetitive task automation initiated its research and development in various fields. The high demand for RPA has expanded the global market. However, the disadvantages include the high cost of commercial RPA products and limited functional expansion. Therefore, it is necessary to design opensource RPA to minimize the cost and manage the execution of multiple RPA jobs. We propose a middleware system called MIORPA to control open-source RPA robots. The proposed middleware system provides a job-scheduling algorithm for assignment of tasks to multiple RPA robots in multiple middleware environments. Further, MIORPA provides watchdog-based RPA robot status monitoring, and the status of the RPA robot can be identified and managed in real time. Therefore, when a large number of users request RPA, the work is distributed and processed efficiently. Thus, this study contributes towards research into the control of RPA robots.

The Differential Imaging Features of Fat-Containing Tumors in the Peritoneal Cavity and Retroperitoneum: the Radiologic-Pathologic Correlation

Shin, Na-young,Kim, Myeong-Jin,Chung, Jae-Joon,Chung, Yong-Eun,Choi, Jin-Young,Park, Young-Nyun The Korean Society of Radiology 2010 KOREAN JOURNAL OF RADIOLOGY Vol.11 No.3

<P>There are a variety of fat-containing lesions that can arise in the intraperitoneal cavity and retroperitoneal space. Some of these fat-containing lesions, such as liposarcoma and retroperitoneal teratoma, have to be resected, although resection can be deferred for others, such as adrenal adenoma, myelolipoma, angiomyolipoma, ovarian teratoma, and lipoma, until the lesions become large or symptomatic. The third group tumors (i.e., mesenteric panniculitis and pseudolipoma of Glisson's capsule) require medical treatment or no treatment at all. Identifying factors such as whether the fat is macroscopic or microscopic within the lesion, the origin of the lesions, and the presence of combined calcification is important for narrowing the differential diagnosis. The development and wide-spread use of modern imaging modalities make identification of these factors easier so narrowing the differential diagnosis is possible. At the same time, lesions that do not require immediate treatment are being incidentally found at an increasing rate with these same imaging techniques. Thus, the questions about the treatment methods have become increasingly important. Classifying lesions in terms of the necessity of performing surgical treatment can provide important information to clinicians, and this is the one of a radiologist's key responsibilities.</P>

Selective Medium for the Isolation and Counting of Bifidobacteria in Dairy Products

Myeong Su Shin,Jeong Jun Lee,In Yeong Suh,Seog Hwan Na,Young Jin Back 한국미생물생명공학회(구 한국산업미생물학회) 1994 한국미생물생명공학회 학술발표초록집 Vol.1994 No.1

정중 흉골 절개부 개열의 재건

신영진,유재현,정지원,나명훈,박종필 大韓成形外科學會 1998 Archives of Plastic Surgery Vol.25 No.4

Complications after a median sternotomy incision, which is used currently in most open heart surgery, are serious, although it is infrequent. Reconstruction of the sternal defect resulting from dehiscence of median sternotomy is still big challenge to the most plastic surgeons. Since vascularized greater omentum was transposed to eliminate mediastinal wound problems, many vascularized regional muscle flaps became mainstay in reconstruction of median sternotomy wound. We treated 13 patients with median sternotomy dehiscence between October of 1993 and March of 1998. In two patients, the wound problems were so confined to superficial tissue that debrided and closed primarily. Eleven patients with deep wound infection were managed with vigorous debridement of all necrotic tissues and resultant defects were covered with regional muscle flaps: rectus myocutaneous flap(3) and bilateral pectoralis advancement flap(8). We used the pectoralis major advancement flaps without counter incision at humeral insertion site and the dissections were limited only medial to the anterior axillary line to preserve the axillary fold. In five patients with larger defects, we elevated muscle and cutaneous flaps separately to make these flaps more mobile. Large portion of two rectus abdominis flaps could not survive, whereas pectoralis advancement flaps had mo special wound problems. Only one patient developed fistula due to remained wire, regardless to flap surgery.

나노유체 종류에 따른 광열변환특성에 대한 비교 분석

유나영(Na Young You),이민정(Min Jung Lee),신명재(Myeong Jae Shin),조홍현(Hong Hyun Cho) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6

In this study, the photothermal conversion characteristics of CNT, Fe₃O₄, and SiC nanofluids were ezperimetally investigated to select a heat transfer fluid for the direct absorption solar collecting method. The concentrations of CNT, Fe₃O₄, and SiC nanofluids used for the experiment were 0.002wt%, 0.075wt%, and 0.02wt%, ant which the optical absorption reached the critical point. The maximum absorption efficiency of 0.002wt% CNT, 0.075wt% Fe₃O₄ and 0.02wt% SiC nanofluids were measured to be 80.8%, 77.8%, and 72.3%. In addition, the photothermal conversion efficiency of 0.002wt% CNT, 0.075wt% Fe₃O₄, and 0.02wt% SiC nanofluids were measured to be 90.03%, 84.38%, and 93.26%. From these results, it is judged that the CNT nanofluid is economically advantageous compared to Fe₃O₄ and SiC nanofluids to improve photothermal conversion characteristics. However, when using CNT nanofluids for the direct absorption solar collection method, the long-term high-temperature dispersion stability is low and using the low concentration of CNT nanofluid is disadvantageous. Therefore, there is a need for future research to select a suitable nanofluid for the direct absorption solar collecting method by evaluating the light-to-heat conversion characteristics, economic feasibility, and dispersion stability.

나노유체 종류에 따른 광열변환특성에 대한 비교 분석

유나영(Na Young You),이민정(Min Jung Lee),신명재(Myeong Jae Shin),조홍현(Hong Hyun Cho) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6

In this study, the photothermal conversion characteristics of CNT, Fe₃O₄, and SiC nanofluids were ezperimetally investigated to select a heat transfer fluid for the direct absorption solar collecting method. The concentrations of CNT, Fe₃O₄, and SiC nanofluids used for the experiment were 0.002wt%, 0.075wt%, and 0.02wt%, ant which the optical absorption reached the critical point. The maximum absorption efficiency of 0.002wt% CNT, 0.075wt% Fe₃O₄ and 0.02wt% SiC nanofluids were measured to be 80.8%, 77.8%, and 72.3%. In addition, the photothermal conversion efficiency of 0.002wt% CNT, 0.075wt% Fe₃O₄, and 0.02wt% SiC nanofluids were measured to be 90.03%, 84.38%, and 93.26%. From these results, it is judged that the CNT nanofluid is economically advantageous compared to Fe₃O₄ and SiC nanofluids to improve photothermal conversion characteristics. However, when using CNT nanofluids for the direct absorption solar collection method, the long-term high-temperature dispersion stability is low and using the low concentration of CNT nanofluid is disadvantageous. Therefore, there is a need for future research to select a suitable nanofluid for the direct absorption solar collecting method by evaluating the light-to-heat conversion characteristics, economic feasibility, and dispersion stability.

천연발효 경과에 따른 삼정환의 미생물 변화 및 발효특성

신나래 ( Na Rae Shin ),왕경화 ( Jing Hua Wang ),임동우 ( Dongwoo Lim ),이명종 ( Myeong Jong Lee ),김호준 ( Hojun Kim ) 한방비만학회 2015 한방비만학회지 Vol.15 No.2

Objectives: Samjung-hwan (SJH), a well-known traditional fermented herb formula recorded in Dongui Bogam, has been commonly used for prolonging life for four hundred years in Eastern Asia. However, fermented SJH has not been investigated in terms of microbial ecology until present time. Methods: SJH was fermented for five weeks and fermentation characteristics during SJH fermentation were performed including pH, acidity and microbial profiling. Also, we measured total polyphenol and total flavonoid contents and 1,1-Diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging activity. In order to select starter candidate, several lactic acid bacteria were isolated from fermented SJH. Results: pH of fermented SJH was decreased from 4.7 to 3.0 and acidity was increased from 0.45% to 1.72%. Also, fermented SJH increased antioxidant indicator such as total polyphenol and total flavonoid as well as DPPH free radical scavenging activity. Lactobacillus brevis was increased, Pseudanabaena sp. was decreased, and Lactococcus lactis subsp. lactis was stable during 5-week fermentation of SJH. L. brevis and L. plantarum were isolated from fermented SJH. Conclusions: Fermented SJH for four weeks had optimal effect on antioxidant and fermentation characteristics such as pH, acidity and microbial profile. Further studies are required to develop starter and analyze functional compounds in oder to produce standardized SJH.

Chest 검사시 산란선에 의한 Gonad 차폐 전후 선량비교 연구

신명호(Myeong ho Shin),강헌효(Heon hyo Kang),김민재(Min jae Kim),이상헌(Sang heon Lee),이예나(Ye na Lee),강동원(Dong won Kang) 대한CT영상기술학회 2013 대한CT영상기술학회지 Vol.15 No.1

목적 Chest CT 검사시 발생하는 산란선에 의해 감수성 높은 장기인 Gonad 부위의 차폐 전후의 평균선량에 대해 비교 연구하였다. 대상 및 방법 Somaton Definition Flash 장비를 사용하여 본원에서 사용하고 Chest Protocol을 이용하여 Rando phantom을 스캔하였다. 먼저 Chest 검사시 정중앙에 RadEye G-10 장비를 위치하여 검사부위의 누적선량을 측정하였다. 그 후, Gonad 부위 차폐 전 전부, 양측부, 후부, Gonad부위의 산란선을 측정하고 Xenolite nolead Apron(0.35 mm PB), Xenolite nolead Apron(front 0.35 mm PB Mix back 0.25 mm PB, Skirt overlap), Half Apron(0.5 mm PB)으로 차폐 후 각각의 누적선량을 측정하였다. 결과 Chest CT 검사시 검사부위의 누적선량은 272μ㏜가 측정되었고, Apron으로 차폐하지 않았을 시에 평균 전부 43μ㏜, 좌측부 81μ㏜, 우측부 82μ㏜, 후부 38.8μ㏜, Gonad부위 16μ㏜로 측정되었다. Xenolite nolead Apron으로 위쪽부분만 차폐하고 측정했을 전부 11.2μ㏜, 좌측부 43.1μ㏜, 우측부 45.3μ㏜, 후부 12μ㏜, Gonad부위 5.2μ㏜로 측정되었다. Xenolite nolead Apron(Skirt overlap)으로 Pelvis 부위를 360° 감싼 후 선량을 측정하였을 때 전부 5.6μ㏜, 좌측부 22.4μ㏜, 우측부 15.7μ㏜, 후부 6μ㏜, Gonad부위 3.2μ㏜로 측정되었다. Half Apron으로 위쪽만 차폐하고 측정했을 때에는 전부 10.7μ㏜, 좌측부 42.6μ㏜, 우측부 40.6μ㏜, 후부 11.3μ㏜, Gonad부위 4.7μ㏜로 측정되었다. 결론 골반부위를 360° 차폐하는 방법이 80% 이상 선량감소를 보였고, 전부 차폐시 70% 이상의 선량감소효과를 보였다. CT를 이용한 모든 검사에 있어 피폭선량 경감을 위한 연구와 차폐가능한 장비를 활용하는 다양한 기법에 관한 지속적인 연구가 필요하리라 사료된다. Ⅰ. Purpose On chest study, it is to reduce exposed dose to minimum in man’s Gonad which is not in the examination area. Ⅱ. Meterial and Methods Rando phantom was scaned in somatom definition flash with chest protocol. First of all, redeye G-10 equipment was placed in the middle of chest and then accumulated dose of examination area was measured. Secondly scatter ray were measured at the front back left and right of Gonad region before shielding and then each dose was measured after shielding with Xenolite nolead apron (0.35 mm PB), Xenolite nolead apron (front 0.35 mm PB Mix back 0.25 mm PB, skirt overlap), Half apron (0.5 mm PB). Ⅲ. Result Accumulated dose of examination region was measured at 272μ㏜ in the chest examination. It was mean front 43μ㏜, left 81μ㏜, right 82μ㏜, back 38.8μ㏜, and Gonad 16μ㏜ without any shielding around Gonad. The accumulated dose had front 11.2μ㏜, left 43.1μ㏜, right 45.3μ㏜ back 12 μ㏜ and Gonad 5.2μ㏜ with the xenolite nolead apron shielding which covers front of pelvis. The dose was front 5.6μ㏜, left 22.4μ㏜, right 15.7μ㏜, back 6μ㏜ and Gonad 3.2μ㏜ after 360° shielding on pelvis with xenolite nolead apron (skirt overlap). It was front 10.7μ㏜, left 42.6μ㏜, right 40.6μ㏜, back 11.3μ㏜ and Gonad 4.7 μ㏜ of front left right and Gonad respectively after only front shielding with half apron. Ⅳ. Conclusions 360° shielding method around pelvis shows dose reduction of over 80%. In addition, only front side shielding shows dose reduction of over 70%. It is necessary to reduce radiation dose to the patient by shielding the region besides the examination area.