연구논문 : 제주지역 미세먼지의 장기변동 및 농도변화에 관한 국지기상 분석

박연희 ( Yeon Hee Park ),송상근 ( Sang Keun Song ),이수정 ( Soo Jeong Lee ),김석우 ( Suk Woo Kim ),한승범 ( Seung Bum Han ) 한국환경과학회 2016 한국환경과학회지 Vol.25 No.1

Long-term variations of PM_{10} and the characteristics of local meteorology related to its concentration changes were analyzed at 4 air quality sites (Ido-dong, Yeon-dong, Donghong-dong, and Gosan) in Jeju during two different periods, such as PI (2001-2006) and PII (2007-2013), over a 13-year period. Overall, the long-term trend of PM_{10} was very slightly downward during the whole study period, while the high PM_{10} concentrations in PII were observed more frequently than those in PI. The concentration variations of PM_{10} during the study period was clarified in correlation between PM_{10} and meteorological variables, e.g. the low (high) PM_{10} concentration with large (small) precipitation or high (low) radiation and in part high PM_{10} concentrations (especially, Donghong-dong and Gosan) with strong wind speed and the westerly/northwesterly winds. This was likely to be caused by the transport effect (from the polluted regions of China) rather than the contribution of local emission sources. The PM_{10} concentrations in “Asian dust” and “Haze” weather types were higher, whereas those in “Precipitation”, “Fog”, and “Thunder and Lighting” weather types were lower. The contribution of long-range transport to the observed PM_{10} levels in the urban center (Ido-dong, Yeon-dong, and Donghong-dong), if estimated by comparison to the data of the background site (Gosan), was found to explain about 80% (on average) of its input.

한강 하류의 남조류 및 환경요인의 연간 (2000 ${\sim}$ 2003) 변화에 대하여

서미연,김백호,배경석,한명수,Suh, Mi-Yeon,Kim, Baik-Ho,Bae, Kyung-Seok,Han, Myung-Soo 한국하천호수학회 2005 생태와 환경 Vol.38 No.2

한강 중하류의 남조류 및 환경요인의 연간변화 (2000 ${\sim}$ 2003)를 파악하기 위하여, 2000년 4월부터 2003년 10월까지 4년간 성수대교에서 성산대교까지 총 5개 지점을 선정하여, 수계의 기초환경요인 및 식물플랑크톤 현존량 변화를 조사하였다. 조사기간 동안, 남조류의 현존량은 점차적으로 감소하여 장기간 강우가 가장 많았던 2003년에는 거의 관찰되지 않았으며, 총 식물플랑크톤 현존량에 대한 남조류의 기여도는 약 10%범위내였다. 이러한 현상은 매년 강우집중기 동안 팔당댐으로부터 많은 방류수가 유입됨으로서 수온감소는 물론 광량감소, 영양염류 희석 등에 의한 남조류의 성장이 제한된 것으로판단되며, 동일시기에 다른 조류 (녹조, 규조 등)의 높은 성장으로 엽록소 a와 식물플랑크톤 현존량이 뚜렷하게 증가하였다. 따라서 한강 하류의 고온기 동안 남조류 성장은 잦은 강우와 방류에 의해 제한을 받지만 규조나 녹조와 같은 다른 조류들의 높은 성장으로 대치되는 천이현상을 보였으며, 기후영향을 크게 받는 전형적인 하천생태계의 특성을 나타냈다. For 4 years (2000 ${\sim}$ 2003), annual fluctuations of standing crops of cyanobacteria and physicochemical factors were examined at five sites from Bridge of Seungsoo to Bridge of Seungsan in the lower part of Han River. The cyanobacterial abundance (ND to 4,167 cells $mL^{-1}$) was strongly decreased during the heavy rains in every year. During the similar periods in 2003, cyanobacteria hardly observed, and comprised below of 10 percentage of total phytoplankton. In the period of little cyanobacteria, some green algae and diatom dominated the phytoplankton community, while the concentration of chlorophyll a has not largely change. These results indicate that heavy frequent precipitation strongly limited the growth of cyanobacteria, and lead an algal succession by the appearance of new algal groups.

RE-17 : Recurrence of ovarian endometrioma in adolescents after conservative surgical treatment

( Yeon Jean Cho ),( Soo Yoon Lee ),( Mi La Kim ),( Joo Myoung Kim ),( Seok Joo Song ),( Jong Woon Bae ),( Jung Woo Park1,),( Hee Suk Lee ),( Myoung Seok Han1 ) 대한산부인과학회 2014 대한산부인과학회 학술대회 Vol.100 No.-

목적: To evaluate the cumulative recurrence rate of endometriomas after a laparoscopic endometriotic cyst enucleation in adolescents and to find the factors associated with recurrence. 방법: A multicenter retrospective cohort study was performed at 3 gynecologic surgery centers between January 2000 and December 2010. Patients surgically treated by laparoscopic enucleation of endometriotic cysts younger than 20 years old were selected. We excluded patients who had reproductive tract anomalies. Endometrioma recurrence was considered when transvaginal or transrectal sonography indicated a cystic mass with a diameter of ≥ 20 mm. 결과: In total, 105 patients were followed up for 47.3 ± 44.3 months (range, 3 - 161 months). Seventeen patients (16.2 %) experienced recurrence after the first-line surgery and 8 patients (7.6 %) underwent a second surgery. The median time to recurrence was 51.1 ± 9.1 months (SEM) (range, 8 - 111 months). The cumulative recurrence rates of endometrioma per patient at 24, 36, 60 and 96 months after the first-line surgery were 6.4 %, 10 %, 19.9 % and 30.9 %, respectively. Surgical characteristics such as the diameter of the cyst, rAFS stage, unilateral or bilateral involvement, co-existence of deep endometriosis were not associated with the recurrence in this age group. 결론: The short-term recurrence rate in adolescent after the first-line surgery is relatively low but is appears to be higher according to the follow- up duration. Long-term and strict follow up is needed who have undergone surgical treatment for endometriosis in adolescent period.

硏究人力의 모티베이션 向上 方案에 관한 硏究 : 政府出損硏究機關을 中心으로

韓仁洙,河連植 충남대학교 경상대학부설 경영경제연구소 1991 경영논집 Vol.7 No.2

하루 콩단백질 25g 섭취를 위한 메뉴작성 및 영양성분 분석

한재숙,김정애,서봉순,이연정,서향순,조연숙,한경필,이신정,오옥희,우경자,조은자,구성자,김수진,李承彦,南出隆久 동아시아식생활학회 2002 동아시아식생활학회지 Vol.12 No.2

The purpose of this study was to develop menus for daily intake of 25g soybean protein and to analyse nutrients of these foods. Analytical values were compared to the theoretical one using the food composition table and recommended dietary allowances for Koreans (7th revision). The results are as follows. 1. Soybean curd residue stew, Soybean curd, Kimchi saute, and hard boiled soybean and lotus root were selected for the menu for January, of which the content of soy bean protein(SBP) was 33.1g, soybean stew, soybean curd and soybean sprout saute, and Italian deep fried soybean curd were for February, of which the content of SBP was 35.0g. The content of SBP in soybean paste soup with soybean curd, fried soybean curd and fried soybean curd roll, the menu for March, was 24.9g. That of April were soybean curd gratin with soymilk, soybean curd and ham with garlic dressing and the content of SBP was 26.3g. That of May were soybean porridge, soybean flour cake with honey (Dasik), soybean sprout soup and the content of SBP was 26.7g. That of June were soymilk, pan-fried soybean curd, steamed soybean curd with chicken and the content of SBP was 28.4g. That of July were noodle with soymilk, mapatofu, soybean curd salad and the content of SBP was 24.7g. That of August were soybean sprout with mustard dressing, Tossed green pepper with raw soybean flour, Tofu and Kimchi stew, soybean curd steak and the content of SBP was 26.2g. That of September were Chinese cabbage soup with raw soybean flour, sweet and sour tofu and the content of SBP was 23.2g. That of Oct. were Fermented soybean stew, soybean pan cake and the content of SBP was 24.3g. That of November were not-pressed soybean curd casserole, pan-fried mashed soybean curd with egg, stir frying deep-fried soybean curd with vegetables and the content of SBP was 22.4g. That of December were soybean curd and mushroom casserole, fried soybean curd and vegetables, hard boiled soybean curd and the content of SBP was 28.9g. 2. The ratio of the analytical value over theoretical value (A/B%) of one serving in kcal, carbohydrate, protein, fat, ash and dietary fiber were 57.7~107.7%, 42.9~131.9%, 79.2~118.3%, 54.5~100%, 40.7~80.8% and 42.1~113.2%, respectively. 3. The ratio of A/B% of one serving in Ca, K, Na, P and Fe were 44.1~93.6%, 59.0~153.1%, 53.1~117.7% 64.6%~138.8 and 33.8~77.3%, respectively. That in Fe was the lowest among minerals. 4. The ratio of analytical value over Korean R.D.A(A/C%) in Ca was relatively higher (22.0~85.9%) than that in kcal(18~63%). 5. The ratio of A/C% in Fe was 25.1~64.3% and lower than that in Ca and protein in general.

치은연하 파절로 치조골 소실을 동반한 상악측절치에서 orthodontic extrusive remodeling후 임플란트 식립을 통한 심미수복 : 증례보고

황수연,손원준,한영철,배광식,백승호,이우철,금기연 大韓齒科保存學會 2008 Restorative Dentistry & Endodontics Vol.33 No.1

심미적으로 중요한 전치부에서 단일 치아 임플란트를 이용한 보철수복은 임상의에게 새로운 도전과제 중의 하나가 되었다. 그러나 전치부에서 single-unit implant는 식립할 부위의 치조골 상태가 양호해야 하는데 치은연하 파절로 인해 치아 주위에 골 손실이 있는 경우 immediate implant는 심미적으로 문제를 야기할 수 있다. 따라서 본 증례는 "orthodontic extrusive remodeling"을 통해 파절치와 주위 조직을 교정적으로 정출시켜 임플란트 식립을 위한 연조직과 경조직을 증대시킨 후 임플란트 식립을 통해 상악측절치에서 성공적인 심미수복을 이룬 증례에 관한 것이다. The treatment of esthetic areas with single-tooth implants represents a new challenge for the clinician. In 1993, a modification of the forced eruption technique, called "orthodontic extrusive remodelling" was proposed as a way to augment both soft- and hard-tissue profiles at potential implant sites. This case report describes augmentation of the coronal soft and hard tissues around a fractured maxillary lateral incisor associated with alveolar bone loss, which was achieved by forced orthodontic extrusion before implant placement. Through these procedures we could reconstruct esthetics and function in a hopeless tooth diagnosed with subgingival root fracture by trauma.

일정축력 및 반복 횡하중을 받는 철골철근콘크리트 기둥의 내력과 변형성능

정수영,연길환,임경택,윤석천,한병찬 忠南大學校 産業技術硏究所 1995 산업기술연구논문집 Vol.10 No.2

An experimental investigation was conducted to investigate the strength and deformation capacity of Wide Flange Steel Encased Reinforced Concrete(SRC) Columns subjected to constant axial compression and cyclic lateral loading conditions. Six one-third scale specimens were tested, each consisting of a structural steel size encased in reinforced concrete. The parameters studied in the test program included the effects of B/t ratios of encased steel(=13, 18, 23), ratios of axial force(=1/3, 1/6). As a result, capacity prediction based on superimposing the moment-axial-load interaction surfaces of the steel shape and reinforced concrete produced good results; the average of the experimental-to-predicted capacity ratio being equal to 0.99∼1.20. The observed hysteretic behavior of the test specimens indicated that adequated ductility can be achieved and the concrete core must be inhibited to buckling of wide flange.

치과용 자성 어태치먼트 재료의 안정성 개선에 관한 연구 : II.질화티타늄 코팅이 치과용 자성재의 내식성에 미치는 영향 Ⅱ.Effect of TiN Coating on Corrosion Resistance of Dental Magnetic Materials

최한철,고영무,정재헌,신종연,김일선,최성욱,정효수 대한치과기재학회 1999 대한치과재료학회지 Vol.26 No.4

Dental magnetic materials have been applied to removable prosthetic appliances, maxillofacial prostheses, obturator and dental implant but they still have some problems such as low corrosion resistance in oral environments. To increase the corrosion resistance of dental magnetic materials, surfaces of Sm-Co and Nd-Fe-B based magnetic materials were plated with TiN and then electrochemical corrosion test were performed in 4 kinds of electrolyte solutions(0.9% NaCl. 1% lactic acid, 0.05% HCl and modified Fusayama's artificial saliva). From this study, corrosion behavior, amount of elements released, mean average surface roughness values and the changing of mean surface microhardness values were measured comparing with control group of non-sputtered plating magnetic materials. The results were as follows: 1. TiN layer coated on magnet grows into preferred direction with lamellar structure and its thickness is 3.0㎛. 2. Sm-Co base magnetic materials coated with TiN have good corrosion resistance in 1% lactic acid and their pitting corrosion can not be seen. 3. Nd-Fe-B base magnetic materials coated with TiN showed good tendency of corrosion resistance in 0.05% HCl solution. 4. The amount of elements released from both Sm-Co and Nd-Fe-B base magnetic materials coated with TiN were more significantly decreased than that of uncoated magnetic materials. 5. The mean surface roughness values of both Sm-Co and Nd-Fe-B base magnetic materials coated with TiN were smooth than that of uncoated magnetic materials after corrosion test. 6. The decreasing rate of microhardness of both Sm-Co and Nd-Fe-B base magnetic materials coated with TiN were lower than that of uncoated magnetic materials after corrosion test. 7. Dental magnetic materials coated with TiN produced various corrosion products such as TiO, TiO₂, Ti₂O₃on the surface and resulted in better corrosion resistance than uncoated magnetic materials. In conclusion, it is considered that the corrosion problem of dental magnetic materials could be solved to some extent by EB-PVD with TiN on the surface of dental magnetic materials.

3차원 CT 영상을 이용한 정상교합자의 안면 연조직 계측 분석

유형석,한수연,백형선,김기덕 대한치과교정학회 발행 2005 대한치과교정학회지 Vol.35 No.6

최근 들어 3차원 전산화 단층 촬영(CT, Computed Tomography) 영상을 이용한 진단기법의 개발을 위한 연구가 활발히 진행되고 있으며 여러 분야에서 3차원적인 두개악안면 분석의 필요성이 증대되고 있다. 특히 교정 치료나 악교정 수술 후의 결과에 있어서 안면 연조직의 분석은 필수적이라 할 것이다. 본 연구에서는 정상교합을 가진 성인 남자 12명, 성인 여자 11명의 CT 영상을 촬영하여 개인용 컴퓨터 상에서 V works 4.0 프로그램 (Cybermed Inc., Seoul, Korea)으로 3차원 CT 연조직 영상을 재구성한 후에 soft tissue Nasion을 기준 원점으로 하는 3차원 좌표평면의 좌표계를 설정하여 정중선상의 soft tissue Nasion, Pronasale, Subnasale, Upper lip center, Lower lip center, soft tissue B, soft tissue Pogonion, soft tissue Menton 등 8개의 계측점과 양측성인 Endocanthion, Alare lateralis, Cheilion, soft tissue Gonion, Tragus, Zygomatic point 등 총 20개의 재현 가능한 안면 연조직의 계측점을 지정하였으며 V surgery 프로그램(Cybermed Inc., Seoul, Korea)을 이용하여 이들 계측점의 3차원적인 좌표와 기준 원점으로부터 각 계측점까지의 Net (δ=√ (X^(2)+Y^(2)+z^(2))) 값의 평균과 표준편차를 구하였다. 안면 연조직 분석의 3차원적인 이해를 돕기 위해 주요 계측점 간의 거리 계측을 시행하였고, 그 결과 Na'-Sn과 En(Rt)-En(Lt)를 제외한 대부분의 계측값에서 남녀간의 유의한 차이가 있었으며, 2차원적인 두부 방사선 규격사진이나 안면 사진으로는 정확한 계측이 어려웠던 Na'-Zy, Na'-Ch, Na'-Go' (facial depth) 등의 정상치도 구하였다. 이상의 자료는 부정교합 환자와 악안면 기형 환자의 3차원적인 진단 및 치료 계획에 참고자료로 사용될 수 있을 것이다. Studies for diagnostic analysis using three-dimensional (3D) CT images are recently in progress and needs for 3D craniofacial analysis are increasing in the fields of orthodontlcs. It is especially essential to analyze the facial soft tissue after orthodontic treatment and orthognathic surgery. In this study 3D CT images of adults with normal occlusion were taken to analyze. the facial soft tissue. Norms were obtained from CT images of adults with normal occlusion (12males, 11 females) using a computer program named V works 4.0 program. 3D coordinate planes were established using soft tissue Nasion as the reference point and a total of 20 reproducible landmarks of facial soft tissue were obtained using the multiple reconstructive sectional images (axial, sagittal and coronal images) of the V works 4.0 program: soft tissue Nasion, Pronasale, Subnasale, Upper lip center, Lower lip center, soft tissue B, soft tissue Pogonion, soft tissue Menton, Endocanthion (Rt/Lt), Alare lateralis (Rt/Lt), Cheilion (Rt/Lt), soft tissue Gonion (Rt/Lt), Tragus (Rt/Lt), and Zygomatic point (Rt/Lt). According to the established landmarks and measuring method, the 3D CT images of adults with normal occlusion were measured and the normal positional measurements and their Net (δ=√ (X^(2)+Y^(2)+z^(2))) values were obtained using V surgery program. In the linear measurement between landmarks, there was a significant difference between males and females except Na'-Sn and En(Rt)-En(Lt). The normal ranges of Na'-Zy, Na'-Ch and Na'-Go' (facial depth) were obtained. which was difficult to measure by two-dimensional (2D) cephalometric analysis and facial photographs. These data may be used as references for 3D diagnosis and treatment planning for patients with malocclusion and dentofacial deformity.

사무직 근로자의 수면의 질 및 직무스트레스와 우울과의 관련성

강미나,강수영,권수정,김현주,배재원,이보연,이예진,임의롬,정다영,조한솔 이화여자대학교 간호과학대학 2013 이화간호학회지 Vol.- No.47

Purpose: The purpose of this study was to understand the degree of depression, sleep quality, job stress and their association among office workers. Method: A self-administered questionnaire was distributed to 147 workers employed in 5 big enterprises, and 5 small and medium enterprises from October 21 to November 21, 2012. The questionnaires included socio-demographic and health-related characteristics, job-related characteristics, sleep quality, job stress (KOSS) and depression (CES-D). Result: Among all subjects, 23.1% was in the depression group (21 points and over in the CES-D score). Depressive level was positively correlated with job stress and quality of sleep. The adjusted odd ratio for the effects of sleep quality and job stress on depression significantly increased in the depression group compared to that of the normal group. Multiple regression analysis revealed that the following factors of influence had combined explanatory powers on depression: BMI, life satisfaction, quality of sleep, and job stress. Conclusion: The study revealed that complicated influences were exerted on the level of depression by variable factors, as well as socio-demographic characteristics, health-related characteristics, quality of sleep, and job stress. Specifically, the level of depression was influenced by the quality of sleep and job stress.