스크린 인쇄법의 공정 조건이 전극 패턴 균일성에 미치는 영향

이나영,김동철,여동훈,이주성,윤상옥,신효순,이준형,Lee, Na-Young,Kim, Dong-Chul,Yeo, Dong-Hun,Lee, Joo-Sung,Yoon, Sang Ok,Shin, Hyo-Soon,Lee, Joon-Hyung 한국전기전자재료학회 2020 전기전자재료학회논문지 Vol.33 No.5

In this study, image analysis and surface roughness measurements using an optical microscope are presented as a method to quantitatively evaluate the results of screen printing. Using this method, the squeegee speed, which is the printing process condition, and the printability of the electrode according to the screen mesh were evaluated. Increasing the squeegee speed in the printing process acts as a process element that increases the line width precision of the printed electrode and lowers the surface roughness of the printed surface. Furthermore, the edge roughness, which indicates the clarity of printing, was not significantly affected by the speed of the squeegee during printing. The print thickness increases in proportion to the squeegee speed, but is largely dependent on the screen thickness.

정상안압녹내장 환자에서 혈액검사를 통한 전신적 인자에 대한 분석

이나영,안명덕,Na Young Lee,Myung Douk Ahn 대한안과학회 2010 대한안과학회지 Vol.51 No.2

Purpose: In this study, we evaluated systemic hemodynamic factors of normal tension glaucoma. Methods: Forty patients with normal tension glaucoma and thirty healthy people were investigated with regard to hemoglobin, hematocrit, RBC count, WBC count, platelet count, fasting glucose, HbA1c, total cholesterol, triglycerides, LDL, HDL, and highsensitivity C-reactive protein (hsCRP). Also, ET-1 and MCP-1 were measured using enzyme-linked immunosorbent assay kits. Results: The results of the blood examinations showed no statistically significant differences in hemoglobin, hematocrit, RBC count, WBC count, platelet count, fasting glucose, HbA1c, total cholesterol, LDL, HDL, and hsCRP. Only triglycerides showed a statistically significant difference between the groups (P=0.03). The level of serum ET-1 was significantly higher in the normal tension glaucoma group (P=0.007). The results of MCP-1 showed no statistically significant difference. Conclusions: We conclude that normal tension glaucoma Is associated with an increased level of triglycerides and that the level of ET-1 could be a hemodynamic cause of normal tension glaucoma. J Korean Ophthalmol Soc 2010;51(2):241-247

아메드 녹내장 밸브 삽입한 녹내장 환자에서 백내장 초음파 유화술 시행후 임상경과

이나영,정석원,안명덕,Na Young Lee,Seok Won Jung,Myung Duk Ahn 대한안과학회 2007 대한안과학회지 Vol.48 No.11

Purpose: To investigate the effects of phacoemulsification in glaucomatous eyes with a functioning Ahmed glaucoma valve insertion. Methods: This retrospective analysis followed 28 eyes from 26 patients with a functioning Ahmed glaucoma valve who had clear corneal phacoemulsification from December 1999 to February 2006. Intraocular pressure (IOP), best corrected visual acuity (BCVA), number of glaucoma medications and additional glaucoma surgeries were measured. Results: The mean IOP before phacoemulsification was 17.4 mmHg±5.8 (SD). Postoperative IOP was 13.6±4.4 mmHg, 13.7±4.0 mmHg, 14.1±4.0 mmHg and 15.4±3.8 mmHg at 1, 2, 6, and 12 months, respectively. The change in the number of glaucoma medications significantly changed at 1 month (p<0.05), but did not change at 2, 6 and 12 months (p>0.05) postoperatively. The IOP significantly changed at 1 week, 1 month, 2 months, and 6 months (p<0.05), but did not significantly change at 12 months (p>0.05) postoperatively. No eyes required additional surgery. BCVA improved in 23 eyes; the mean improvement was 3.7±2.9 Snellen lines at 2 months postoperatively. Conclusions: Phacoemulsification in glaucomatous eyes with a functioning Ahmed glaucoma valve improved BCVA and maintained control of IOP.

소아에서 발생한 대장의 염증성 질환에서 E-cadherin의 발현

이나영,박도윤,박재홍,Lee, Na-Young,Park, Do-Youn,Park, Jae-Hong 대한소아소화기영양학회 2009 Pediatric gastroenterology, hepatology & nutrition Vol.12 No.2

목 적: 소아에서 다양한 원인에 의해 발생한 대장염에서 점막의 형태학적 변화와 세포 접합에 다양한 변화가 있으리라 예상되어 세포 간의 결합을 유지하는 E-cadherin의 변화를 살펴보았다. 방 법: 1998년 1월부터 2003년 8월까지 부산대학교병원 소아청소년과에서 하부 위장관 내시경술과 대장점막 조직 검사를 통해 대장염으로 진단된 39명을 대상으로 하였다. 파라핀 블록에서 면역조직화학염색법을 이용하여 E-cadherin의 세포 내 발현을 조사하였다. 주변의 정상 조직과 비교하여 E-cadherin의 발현이 동일한 강도와 양상을 가진 세포가 50% 이상인 경우를 정상으로 판정하였고, 발현이 정상인 세포가 50% 미만이거나 염색 분포의 이상이 있거나 전혀 염색되지 않은 경우를 이상으로 판정하였다. 결 과: 1) 본 연구에서 비특이성 대장염 15예(38.5%), 크론병 7예(17.9%), 감염성 대장염 5예(12.8%), 음식 단백 과민성 직결장염 5예(12.8%), 궤양성 대장염 3예(7.7%), Henoch-Schonlein purpura 대장염 2예(5.1%), 그외 베체트병, 허혈성 대장염 1예가 포함되었다. 2) 모든 종류의 대장염에서 상피세포 E-cadherin 발현 감소가 관찰되었으며, 77%의 대상 표본에서 E-cadherin 발현감소가 있었다. 3) 활동성 염증이 심한 부위에서 Ecadherin 발현 감소가 현저하였으며 병변부에서 떨어진 상피세포에서는 정상 발현을, 궤양 주위나 재생 상피가 있는 부위는 심한 발현 감소를 보였다. 결 론: 모든 종류의 염증성 대장 질환에서 E-cadherin 발현 감소가 있었다. 이러한 변화는 염증과 궤양이 있는 부위에서 상피세포 접합을 느슨하게 함으로써 상피세포의 재생을 위한 세포의 이동을 용이하게 하기 위한 작용이라고 판단된다. Purpose: Colitis is a condition associated with a spectrum of altered morphologic changes and cellular adhesion. E-cadherin plays a key role in the establishment and maintenance of epithelial tissue structure and cell-cell adhesion. The purpose of this study is to evaluate E-cadherin expression in colonic epithelium of various colitis in children. Methods: The expressions of E-cadherin were examined in 39 cases of colonic mucosal biopsy specimen using immunohistochemical staining. When more than 50 percent of cells exhibited uniformly the same intensity and pattern of immunostaining as the adjacent normal mucosa, the antigen expression was considered normal. Abnormal expression was defined when less than 50 percent of cells stained, when cells showed a heterogeneously weak or altered distribution, or when complete absence of staining was observed. Results: Fifteen cases with non-specific colitis (38.5%), 7 cases of with Crohn's disease (17.9%), 5 cases of infectious colitis and milk protein sensitive proctocolitis (12.8%), 3 cases of ulcerative colitis (7.7%), 2 cases of Henoch-Schonlein purpura colitis (5.1%), one case of Behcet's disease and ischemic colitis (2.6%) were included in this study. E-cadherin expression was decreased in all kinds of colitis. Reduced expression of E-cadherin was observed in 77 percent of cases. E-cadherin was weaker or no expression in reparative epithelium and "ulcer associated cell lineage". Conclusion: Altered expression of E-cadherin occurs during mucosal inflammation in any kinds of colitis. These changes may be involved in promoting cell migration during epithelial restitution of the gastrointestinal mucosa.

초다수성 국내쌀 품종의 분쇄방법에 따른 이화학적 특성

이나영,하기용,Lee, Na-Young,Ha, Ki-Young 한국식품영양학회 2015 韓國食品營養學會誌 Vol.28 No.6

초다수성 가공용 품종인 보람찬 및 한마음 품종의 수분 함량, 수분결합도, 아밀로오즈 함량, 손상전분, 입도 분포 및 호화특성을 분석하였다. 국내 초다수성 품종의 습식 및 건식분쇄에 의한 쌀가루의 수분 함량은 보람찬 및 한마음의 경우, 각각 14.79, 13.56 및 7.98, 7.14%를 나타냈다. 수분결합도의 경우, 보람찬 및 한마음 시료는 습식과 건식분쇄에 의해서 각각 236.67, 231.35% 및 275.83, 279.73%를 나타내어 건식분쇄에 의해 수분결합도가 증가하는 것으로 확인되었다. 습식분쇄된 초다수성 쌀가루의 수분결합력은 대조구로 사용된 일반미의 수분결합력과 비교 시 낮게 나타나는 것으로 확인되었다. 건식분쇄에 의한 호품, 보람찬 및 한마음 품종의 아밀로오즈 함량은 각각 19.12, 19.55 및 19.59%를 나타내었다. 손상전분의 경우, 보람찬 및 한마음 시료의 경우 습식과 건식분쇄에 의해 12.51, 10.69 및 14.98, 15.22%를 나타내어 습식분쇄에 비해 건식분쇄했을 경우 전분손상도가 증가하는 것으로 확인되었다. 또한 습식분쇄된 초다수성 쌀가루의 손상전분은 대조구에 비해 낮게 나타났으나, 건식분쇄 시에는 손상전분 함량이 대조구에 비해 증가하는 것으로 확인되었다. 국내 초다수성 품종의 분쇄방법에 따른 입도 분포의 경우, 최빈값은 습식에 비해 건식으로 분쇄할 경우 입도가 높은 것으로 나타났다. 초다수성 품종인 보람찬, 한마음을 습식 및 건식분쇄한 쌀가루의 최고 점도는 각각 2,300, 2,319 및 3,352, 3,022 cP를 나타내었다. 최고점도 및 최종점도의 경우 습식분쇄한 초다수성 쌀가루 시료는 대조구에 비해 높은 값을 나타내었다. Setback의 경우, 초다수성 품종 중 건식분쇄한 보람찬 쌀가루의 경우 가장 낮은 값을 나타내었으나, 대조구와 비교했을 경우 초다수성 쌀가루의 setback 값은 대조구에 비해 높은 값을 나타내었다. A high-yield Korean rice cultivar cv. Boramchan and Hanmaeum, and rice cultivar for use in staple cv. Hopum were prepared and investigated for their physiological characteristics. Water content, water holding capacity, amylose content, damaged starch content, particle size, and pasting properties of the rice flours were measured. Moisture content of the Boramchan and Hanmaeum, made under wet and dry milling conditions, were as follows: wet conditions (14.79% and 13.56% respectively) and dry conditions (7.98% and 7.14% respectively). Water holding capacity of the Boramchan and Hanmaeum made by wet milling condition was 236.67% and 231.35%, respectively. Water holding capacity of the samples made by dry milling condition showed a higher score compared with other samples. The amylose content of Hopum, Boramchan, and Hanmaeum made by dry milling condition were 19.12%, 19.55% and 19.59%, respectively. Damaged starch contents of the samples made by wet milling showed a lower score. Final viscosity of Hopum, Boramchan, and Hanmaeum made by wet milling condition was 2,604, 3,052, and 2,917 cp, respectively. In this study, the results indicated that the super-yield Korean rice flour made by wet milling condition tends to show a lower water holding capacity, damaged starch contents and particle size, as compared to controls. However, a setback of the super-yield Korean rice flour was a higher score as compared to the controls, regardless of the milling conditions.

철 초전도체에서 스핀 밀도 파와 $\pi$ 위상 차 초전도성의 상전이 그림

이나영,최한용,Lee, Na-Young,Choi, Han-Yong 한국초전도학회 2010 Progress in superconductivity Vol.11 No.2

We examine phase transition of the spin density wave and $\pi$ phase shifted superconductivity in the Fe pnictide superconductors. The phase diagram is described in the plane of the temperature T and the doping x with the combination of Ginzburg-Landau expansion of the free energy near the multi-critical temperature $T_c$ and the self-consistent numerical iterations of the gap equations. The phase separation or coexistence is determined by computing the 4-th order terms of the free energy which is confirmed by the numerical calculations. We can show the phase coexistence when the spin density wave is incommensurate. And the first order phase transition is observed near the boundary between commensurate and incommensurate spin density wave.

KAPE연구 - 한우거세 육량등급 요소에 따른 경락단가 변화 분석

이나영,Lee, Na-Yeong 축산물품질평가원 2017 KAPE누리 Vol.254 No.-

무세포성 진피동종이식편을 이용한 무안구증 결막낭성형술

이나영,최웅철,양석우,Na Young Lee,M,D,Woong Chul Choi,M,D,Suk Woo Yang,M,D 대한안과학회 2006 대한안과학회지 Vol.47 No.5

Purpose: To investigate the clinical results and safety of the acellular dermal allograft (SureDerm?, Hans Biomed co., Korea) as a new spacer graft in anophthalmic socket contracture. Methods: We grafted SureDerm? as the replacing spacer in 8 patients for the treatment of anophthalmic socket contracture. Under local anesthesia, SureDerm? was sutured at the levator aponeurosis and upper margin of the tarsus using 6-0 Vicryl in the upper lid. In the lower lid, SureDerm? was sutured at the tarsal conjunctiva and lower margin of the incised conjunctiva. The patients were followed-up individually for 6 to 15 months. Results: Surgical results in all 8 eyelids (6 lower lids, 2 upper lids) were satisfactory. The grafted SureDerm? survived in all patients with little contracture. There were no other complications such as infection, rejection, or exposure. Conclusions: We consider SureDerm? a good replacing spacer material for the treatment of anophthalmic socket contracture.

한식당 종사자가 인식하는 한식 세계화를 위한 한식당 품질개선 방안

이나영,이주연,곽동경,Yi, Na-Young,Lee, Ju-Yeon,Kwak, Tong-Kyung 한국식품조리과학회 2015 한국식품조리과학회지 Vol.31 No.1

The purpose of this study was to investigate workers' perception on the quality improvement of Korean restaurants for the globalization of Korean food. A total of 342 workers at Korean restaurants in Seoul and Gyeonggi province were surveyed using a self-administrated questionnaire. Excluding responses with significant missing data, 250 responses were used for data analysis. In terms of the improvement of service quality attributes, the 'sanitation management (4.51)' category received the highest score, followed by 'service skill (3.93)', 'menu development (3.90)', 'serving method (3.88)', 'facility and ambiance (3.84)', and 'food taste (3.40)'. There were significant differences of workers' perception on the improvement of service quality which were 'menu development (p<0.01)', 'service skill (p<0.001)', 'facility and ambiance (p<0.001)', and 'sanitation management (p<0.01)' by restaurant operation type, and 'service skill (p<0.001)' and 'facility and ambiance (p<0.001)' by workers' position. The mean score of each service quality category showed that Korean restaurants managed by a franchisor were ranked the highest. In each service quality category, the items which showed the highest scores for the improvement were 'developing the finest cuisine (4.08)', 'providing food seasoning according to customer requests (3.70)', 'proving ladles, tongs, and extra plates which enable customers to take as much food as they want (4.12)', 'staff's ability to explain menu (4.08)', 'using tableware appropriate to each dish (4.03)', 'sanitary management of the provided tableware (dishes, spoons and knives) (4.57)', and 'thorough toilet management (4.57)'. This research suggests that Korean restaurants need to improve service quality to globalize Korean food, and the strategies for service quality management should be developed to be applied to each restaurant operation type.

소아 급성 하기도 감염의 바이러스 원인 및 임상 양상 (2002년 부산 지역)

이나영,박지현,김길현,정진화,조경순,김성미,Lee, Na Young,Park, Ji Hyun,Kim, Gil Hyun,Jung, Jin Hwa,Cho, Kyung Soon,Kim, Sung Mi 대한소아감염학회 2003 Pediatric Infection and Vaccine Vol.10 No.1

목 적 : 호흡기 바이러스는 인간에게 가장 전염성이 강한 병원체의 하나로 급성 호흡기 감염 특히 하기도 감염증은 소아에서의 유병률과 사망률의 주요 원인이 되고 있다. 저자들은 하기도 감염증에 이환된 환아들을 대상으로 influenza A, B virus, adenovirus, enterovirus의 감염 연령 분포와 계절적 유행 양상, 바이러스별 임상 양상을 알기 위하여 이 연구를 시작하였다. 방 법 : 2002년 1월부터 2002년 12월까지 부산 메리놀병원에 입원하거나 외래 방문한 하기도 감염증 소아들을 대상으로 인후 가검물, 콧물, 타액 분비물 등을 채취하여 바이러스를 동정하였고, 검사를 시행한 568명 중 바이러스가 동정된 54명을 대상으로 호발 연령, 유행 시기, 임상 증상을 후향적으로 조사하였다. 결 과 : 1) 대상 환아의 연령 분포는 2개월부터 14세 사이였고, 남녀비는 1.8 : 1이었다. 3~6세가 29.6%로 가장 많았고, 2~3세 사이가 14.8%, 12세 이상이 13% 순이었다. 2) 동정된 바이러스는 influenza A virus가 59.3%로 가장 많았고, enterovirus가 33.3%, adenovirus 5.6%, influenza B virus 1.9%였고, parainfluenza virus와 RSV는 동정되지 않았다. 3) 임상 양상은 폐렴이 51.9%로 가장 많았고, 기관지염이 31.5%, 크루프 9.3%, 모세기관지염 7.4%의 순이었다. 4) 호흡기 바이러스는 각각의 유행 시기가 있어, influenza A virus는 3~5월, 11월에 2차례의 유행이 있어 주로 겨울에 유행하는 양상을 보였으며, influenza B virus는 3월에, adenovirus는 3월과 7월에, enterovirus는 3~7월에 유행하여 주로 봄부터 여름까지 유행하는 양상을 보였다. 결 론 : 2002년 부산 지역 호흡기 바이러스 감염의 주된 원인은 influenza virus였다. 이러한 결과는 influenza virus의 유행을 보여주는 것으로 이에 대한 지속적인 감시와 예방, 조기 진단과 치료가 필요하다고 하겠다. Purpose : Respiratory viruses are one of the most infectious agent in human. Acute lower respiratory tract infection(ALRTIs) is associated with significant morbidity and mortality in children. This study is performed to investigate the etiologic organism, age and sex distribution, clinical manifestations and seasonal occurrence of ALRTIs in children. Methods : Viral agent was evaluated with nasopharyngeal aspirates, rhinorrhea and saliva collected from 568 patients. We confirmed viral agents in 54 patients who were younger than 15 year old. They had visited Maryknoll Hospital, Busan in Korea from January, 2002 to December, 2002 for ALRTIs. Results : The viral pathogens identified were Influenza A virus(59.3%), Enterovirus(33.3%), Adenovirus(5.6%), and Influenza B virus(1.9%). Parainfluenza virus and Respiratory syncytial virus were not detected. The occurrence of acute lower respiratory infections was high between 3 & 6 years old. The clinical patterns include pneumonia(51.9%), bronchitis(31.5%), croup(9.3%), bronchiolitis(7.4%). The respiratory viral agents had their characteristic seasonal patterns. Conclusion : Influenza A virus was the most common cause of acute lower respiratory tract infections in Busan area during the 2002. ALRTIs had high occurrence between 3 to 6 years old. And the most common clinical patterns were pneumonia and bronchitis.