하수슬러지 처리공정에 대한 전과정평가(LCA)

한지영,조희찬,김도균,Han Ji Young,Cho Hee Chm,Kim Do Kyun 한국자원리싸이클링학회 2002 資源 리싸이클링 Vol.11 No.4

폐기물 관리법에 의하면 2001년부터 슬러지의 매립이 금지됨에 따라, 매립이외의 다른 처리방식을 도입해야 할 상황이다. 전과 정평가는 제품 및 서비스의 전과정을 통해서 발생하는 환경부하를 정량화 하는 방법으로 대두되고 있으며 환경성에 대한 정책의 입안 및 제품의 비교평가 등 그 활용분야가 다양하다. 본 논문에서는 전과정평가(Life Cycle Assessment, LCA)를 이용하여 슬러지의 처리방법 중 소각, 퇴비화, 고형화에 대한 환경성을 비교 평가하여 적절한 처리방식을 선정하는데 도움이 되고자 하였다. 각각 처리시설의 Data는 구리시 하수처리장의 소각시설, 난지도 하수처리장의 퇴비화 시설, 수도권매립지의 고형화 처리시설을 방문하여 운영자료를 사용하였으며, 국내 D/B로 구축된 전력 및 수송자료도 이용하였다. 전과정 평가를 수행한 결과 퇴비화가 가장 낮은 환경 부하를 나타냈고. 고형화 처리방식이 가장 큰 환경부하를 나타냈다. As it is not allowed to landfill sludge from 2001 by the act of waste management, new systems of treating sludge are necessary. Life Cycle Assessment, LCA, is a method for evaluating systems in the aspect of environment and also can apply to decision making tools for policy making. The objective of this study is to assess 3 alternatives of landfill: incineration, composting, solidification by applying LCA. This study is done with operation data from incinerator in Kuri, composting facility in Nanjido, solidification facility in Kimpo and electricity and transport data of Korea in 1998 are used. The results of the LCA is that the composting system is most environmental-friendly and the solidification system is least environmental-friendly.

검시관과 응급실 간호사의 좋은 죽음에 대한 인식과 죽음에 대한 태도

한지영,Han, Ji-Young 한국호스피스완화의료학회 2015 한국호스피스.완화의료학회지 Vol.18 No.1

목적: 본 연구는 검시관과 응급실 간호사들의 좋은 죽음에 대한 인식과 죽음에 대한 태도를 알아보기 위한 서술적 조사연구이다. 방법: 본 연구는 전국의 검시관 44명과 일개 광역시의 응급실 간호사 56명을 대상으로 실시하였으며, 자료수집기간은 2010년 10월 1일부터 2011년 2월 28일까지 실시되었다. 결과: 좋은 죽음에 대한 대상자 전체의 평균은 4점 만점에 2.98점이었으며 응급실 간호사는 2.95점, 검시관은 3.01점으로 검시관이 다소 높았으나 통계적으로 유의한 차이는 없는 것으로 나타났다. 죽음에 대한 태도에서는 대상자 전체 평균은 4점 만점에 2.72점으로 나타났으며 응급실 간호사는 2.61점, 검시관은 2.87점으로 검시관이 높았으나 통계적으로 유의한 차이는 없는 것으로 나타났다. 일반적 특성에 따른 좋은 죽음에 대한 인식과 죽음의 태도에서는 응급실간호사와 검시관 간의 유의한 차이가 없는 것으로 나타났다. 결론: 본 연구의 결과에서 검시관과 응급실 간호사가 인지하는 좋은 죽음과 죽음의 태도에 유의한 차이가 없는 것을 확인함으로써 죽음을 직면하는 상황보다는 죽음을 받아들이는 태도가 중요함을 확인하였으며, 죽음관련 교육에 대한 대상자의 높은 요구를 충족시키기 위해 죽음관련 교육의 기회를 확대하고 일회성이 아닌 연속적인 죽음관련 교육이 필요하다. Purpose: This study was conducted to describe and compare how emergency room (ER) nurses and coroners perceive good death and their attitudes toward death. Methods: A survey was performed with 51 ER nurses in P city and 44 coroners nationwide. Data were collected from October 1, 2010 through February 28, 2011. Data were analyzed with descriptive statistics, t-test, ANCOVA, Scheffe's test using the IBM SPSS statistics 21.0 program. Results: For the perception of good death and attitudes toward death, coroners scored higher ($3.01{\pm}0.43$ and $2.87{\pm}0.35$, respectively) than ER nurses group ($2.95{\pm}0.40$ and $2.61{\pm}0.33$, respectively), but the differences were not significant. The results of perception of good death and attitudes toward death were not statistically significant between ER nurses and coroners. Conclusion: The study showed no difference between ER nurses' perception of good death and attitudes toward death and those held by coroners. The findings of the study show that it is necessary to offer steady education on death to nurses and coroners to help them build a proper understanding of good death and grow positive attitudes toward death.

Warthin 종양의 세침흡인 세포학적 소견 - 3 예 보고 -

한지영,이광길,Han, Jee-Young,Lee, Kwang-Gil 대한세포병리학회 1993 대한세포병리학회지 Vol.4 No.2

Warthin's tumor is a benign salivary gland tumor, occurring primarily in the parotid gland. It's incidence is 4% of all salivary gland tumors. The cytologic finding of Warthin's tumor is characteristic and it consists of sheets of oncocytes and scattered lymphocytes in the background of granular material. We reports three cases of Warthin's tumor showing characteristic cytologic findings. The patients consisted of two males and a female and their ages were 60, 73, and 69 years, respectively. All the lesions were in the parotid gland. The cytologic findings showed sheets of oncocytic epithelial cells and scattered lymphocytes in the back-ground of granular materials and many red blood cells. In one case, the back-ground was composed of many Inflammatory cells including lymphocytes, neutrophils and macrophages.

후복막강 부신경절종의 세침흡인 세포학적 소견

한지영,이광길,Han, Jee-Young,Lee, Kwang-Gil 대한세포병리학회 1992 대한세포병리학회지 Vol.3 No.1

A case of paraganglioma of the retroperitoneum diagnosed by fine needle aspiration cytology is described. A 60-year-old man presented with abdominal discomfort for 4 months. The smear revealed cellular sheets with partly rosettoid appearance. Many piexiform capillaries were distributed between the cellular sheets or encircled the cellular nests forming zell-ballen pattern. The tumor cells were monotonous and oval to round. The cytoplasm was amphophillc, finely granular and poorly defined. The nuclei were round and had evenly dispersed chromatin and small nucleoli. Cells having large or spindle nuclei were some-times observed. The tissue sections showed typical findings of paragnglima. The cytological differential diagnoses included islet cell tumor of the pancreas and carcinold tumor. The clinical and histoloigic findings as well as cytologic findings were helpful to confirm the diagnosis.

냉부하검사를 통한 수부냉증의 진단

한지영,조정훈,장준복,김용석,이경섭,Han, Ji-Young,Joe, Jung-Hoon,Jang, Jun-Bock,Kim, Yong-Suk,Lee, Kyung-Sub 대한한방체열의학회 2003 대한한방체열의학회지 Vol.2 No.1

Purpose The cold hypersensitivity is a subjective symptom and it is very difficult to evaluate the severity. It is possible to detect cold hypersensitivity by measuring the skin temperature on DITI, but there is limitation only using DITI to find the objective grade of the symptom. To set a new objective standard for the diagnosis of cold hypersensitivity, we examined the relationship between the Visual Analogue Scale (VAS) score for the cold hypersensitivity and the change of skin temperature on hands by cold stress test Method 23 patients with symptom of cold hypersensitivity were participated as subjects who visited the women medical center of Kangnam Kyunghee Korean Hospital, Kyung Hee Univ. from May 1, 2002 to August 31, 2002. There were all carefully examined to rule out other disease such as obesity, skin diseases, spinal nerve lesions and external wounds. Thermographic observations for this study were made using DITI. We performed cold stress test three times to compare with the results from thermographic observations by DITI: first, after 15 minutes-resting, second, right after 1 minutes soak in $20^{\circ}C$ water, the third for last, 10 minutes after the soak. VAS score was chosen to determine the severity of cold hypersensitivity. Result 1 male and 22 female patients were participated ranging in age from 22.17 to 45.21. There was a significant negative correlation between the recovery rate of finger skin temperature after cold stress test and the VAS score. And there was a significant positive correlation between the difference of finger skin temperature and the back and palm of hands after cold stress test and the VAS score. Conclusion In cold hypersensitivity patients, the cold stress test combined with DITI could be a accurate method for the objective evaluation of cold hypersensitivity, especially good at deciding the severity by numeric values. Using a more strict criterion, as diagnosing of cold hypersensitivity, and longer follow-up may improve the validity of the results attained in clinical trials.

청소년 알레르기 질환 유병률과 관련 요인 -2013년 청소년 건강행태 온라인조사 활용

한지영,박현숙,Han, Ji-Young,Park, Hyeon-Sook 한국데이터정보과학회 2016 한국데이터정보과학회지 Vol.27 No.1

본 연구는 청소년의 알레르기 질환 유병률과 관련 요인을 파악하기 위하여 2013년 청소년 건강행태 온라인조사 자료를 이용하여 분석하였다. 연구대상자는 중학생과 고등학생 72,435명이었다. 수집된 자료는 SPSS/Win 18.0 프로그램을 이용하여 천식, 알레르기비염 및 아토피피부염 유병률은 빈도와 백분율을 구하였고, 일반적 및 건강 관련 특성과 천식, 알레르기비염 및 아토피피부염과의 관련성은 카이제곱검정을 실시하였으며, 천식, 알레르기비염, 아토피피부염 관련 요인을 분석하기 위해 다중로지스틱 회귀분석을 하였다. 연구결과 청소년의 천식, 알레르기비염, 아토피피부염의 유병률은 9.3%, 30.6%, 23.4%로 나타났다. 회귀분석 결과 청소년의 천식은 성별, 연령, 경제적 상태, 비만도, 스트레스, 수면 충족도, 가정 내 간접흡연, 약물 사용, 다른 알레르기 질환, 신체활동과 관련성이 있었다. 알레르기비염은 연령, 경제적 상태, 거주지역, 거주형태, 비만도, 스트레스, 수면 충족도, 흡연 경험, 가정내 간접흡연, 음주 경험, 다른 알레르기 질환, 신체활동과 관련성이 있었다. 또한 아토피피부염은 성별, 연령, 경제적 상태, 거주지역, 비만도, 스트레스, 다른 알레르기 질환, 신체 활동과 관련성이 있었다. 이러한 결과는 알레르기 질환의 예방과 관리를 위한 기초자료로 활용될 수 있을 것이다. The purpose of this study was to investigate the prevalence of allergic diseases and its related factorsin Korean adolescents. The subjects were 72,435 middle and high school students. The data were analyzed by ${\chi}^2$ test and multiple logistic regression analysis. The prevalence of asthma, allergic rhinitis, and atopic dermatitis was 9.3%, 30.6%, and 23.4%, respectively. According to multiple logistic regression analysis, asthma was associated with gender, age, economic state, obesity, stress, sleep satisfaction, secondhand smoking, drug use, other allergic diseases and physical activity. Allergic rhinitis was associated with age, economic state, residential area, type of residence, obesity, stress, sleep satisfaction, smoking experience, secondhand smoking, alcohol drinking, other allergic diseases and physical activity. Finally, atopic dermatitis was associated with gender, age, economic state, residential area, obesity, stress, other allergic diseases and physical activity. Conclusion: These results will provide database for prevention and management of allergic diseases.

복수를 침범한 소세포형 T-세포 전림프구성 백혈병의 세포소견 -1예 보고-

한지영,김진수,김동훈,김루시아,박인서,김준미,주영채,최석진,Han, Jee-Young,Kim, Jin-Soo,Kim, Dong-Hoon,Kim, Lucia,Park, In-Suh,Kim, Joon-Mee,Chu, Young-Chae,Choi, Suk-Jin The Korean Society for Cytopathology 2008 대한세포병리학회지 Vol.19 No.2

T-cell prolymphocytic leukemia (T-PLL) is a rare, mature T-cell lymphoproliferative disorder with a post-thymic mature T-cell phenotype. The disease is characterized by rapidly rising lymphocytosis, lym-phadenopathy, and splenomegaly. The clinical course is usually aggressive and progresses with frequent skin lesions and serous effusions. In 25% of cases, leukemic cells are small and tumor cells may not have a discrete nucleolus under light microscopy. Although the presence of characteristic cytoplasmic protrusions or blebs in tumor cells is a common morphologic finding in the peripheral blood film irrespective of the nuclear features, small cell variants lacking the typical nuclear features can cause diagnostic problems in clinical cytology. Furthermore, the small leukemic cells can share some cytologic findings with lymphocyte-rich serous effusions caused by non-neoplastic reactive lymphocytosis as well as other small lymphocytic lymphoproliferative disorders. Here, we describe the cytological findings of ascitic fluid complicated by small cell variant T-PLL in a 54-year-old man, the cytology of which was initially interpreted as small lymphocytic malignancy such as small lymphocytic lymphoma/chronic lymphocytic leukemia.

Gow-Gates 하악신경 전달마취 - 잊혀진 옛날 기법인가?

한지영,김광수,서민석,황경균,박창주,Han, Ji-Young,Kim, Kwang-Soo,Seo, Min-Seock,Hwang, Kyung-Gyun,Park, Chang-Joo 대한치과마취과학회 2011 Journal of Dental Anesthesia and Pain Medicine Vol.11 No.1

Background: Since introduced by Gow-Gates GA in 1973, Gow-Gates mandibular nerve block (GMNB) has played an important role in the area of dental local anesthesia. However, compared to the conventional inferior alveolar nerve block (IANB), this technique seems to fail to attract the attentions of general practitioners in South Korea. The aim of this study was to prove the clinical real value, mainly the anesthetic efficacy, of GMNB in minor oral surgery. Methods: The study group comprised 40 patients (15 males and 25 females) who were randomly allocated to receive GMNB or IANB for extraction of third molars. Both techniques utilized two 1.8 ml dental cartridges of 2% lidocaine including 1:100,000 epinephrine for each patient. Pulpal and gingival tissue anesthesia of mandibular premolars and molars were recorded at 0, 15 and 40 minutes after administration of local anesthetics using both an electric pulp tester and a sharp dental explorer. Results: The success rates of pulpal and gingival tissue anesthesia in the IANB group were not significantly different from the GMNB group in overall efficacy. Patient's and operator's satisfaction ratings were also not significantly different between two groups. Interestingly, the injection pain of GMNB group was significantly lower than that of IANB group. Conclusion: This study demonstrated that the anesthetic efficacy of pulpal and gingival tissue of GMNB was not inferior to that of IANB. The GMNB could be a good alternative of the IANB in most of minor oral surgical procedures.

토픽 모델링 기반 비대면 강의평 분석 및 딥러닝 분류 모델 개발

한지영,허고은,Han, Ji Yeong,Heo, Go Eun 한국문헌정보학회 2021 한국문헌정보학회지 Vol.55 No.4

2020년 신종 코로나바이러스 감염증(코로나19)으로 인한 전 세계적인 팬데믹으로 교육 현장에도 큰 변화가 있었다. 대학에서는 보조 교육 수단으로 생각했던 원격수업을 전면 도입하였고 비대면 수업이 일상화되어 교수자와 학생들은 새로운 교육환경에 적응하기 위해 큰 노력을 기울이고 있다. 이러한 변화 속에서 비대면 강의의 질적 향상을 위하여 강의 만족도 영향요인에 관한 연구가 필요하다. 본 연구는 코로나 전과 후로 변화된 대학 강의 만족도 영향요인을 파악하기 위해 빅데이터를 활용한 새로운 방법론을 제시하고자 한다. 토픽 모델링을 활용하여 코로나 전과 후의 강의평을 분석하고 이를 통해 강의 만족도 영향요인을 파악하여 대학교육이 나아가야 할 방향성을 제언하였다. 또한, 딥러닝 언어 모델인 KoBERT를 기반으로 0.84의 F1-score를 보이는 토픽 분류 모델을 구축함으로써 강의의 만족, 불만족 요인을 다각도로 파악할 수 있으며 이를 통해 강의 만족도의 지속적인 질적 향상에 기여할 수 있다. Due to the global pandemic caused by COVID-19 in 2020, there have been major changes in the education sites. Universities have fully introduced remote learning, which was considered as an auxiliary education, and non-face-to-face classes have become commonplace, and professors and students are making great efforts to adapt to the new educational environment. In order to improve the quality of non-face-to-face lectures amid these changes, it is necessary to study the factors affecting lecture satisfaction. Therefore, This paper presents a new methodology using big data to identify the factors affecting university lecture satisfaction changed before and after COVID-19. We use Topic Modeling method to analyze lecture reviews before and after COVID-19, and identify factors affecting lecture satisfaction. Through this, we suggest the direction for university education to move forward. In addition, we can identify the factors of satisfaction and dissatisfaction of lectures from multiangle by establishing a topic classification model with an F1-score of 0.84 based on KoBERT, a deep learning language model, and further contribute to continuous qualitative improvement of lecture satisfaction.

EDTA가 치근면 탈회에 미치는 효과에 대한 주사전자현미경적 연구

한지영,이만섭,박준봉,허익,Han, Ji-Young,Lee, Man-Sup,Park, Joon-Bong,Herr, Yeek 대한치주과학회 1999 Journal of Periodontal & Implant Science Vol.29 No.4

The present study was performed to evaluate the effect of EDTA on diseased root surfaces with regard to the removal of the smear layer, exposure of dentinal tubule openings, and demineralization of the peritubular dentin. 20 periodontally involved single rooted teeth were used. After scaling and root planing, root conditioning was carried out with 3%, 17%, and 24% EDTA solution for 20 sec., 3 min., and 5 min. respectively. Then, the specimens were rinsed with tap water for 5 min. and processed for scanning electron microscopic observation. The following results were obtained. 1. In control group which was conditioned with cotton pellets soaked with saline for 3 min., the surface showed an amorphous irregular coating. The tubule orifices seemed to be com-pressed in the direction of the curette strokes. 2. In test group which was conditioned with EDTA solution, the number of opening dentinal tubules and the extent of the dentinal tubule opening increased with time irrespective of the concentration of EDTA solution. 3. In the group which was conditioned with EDTA solution for 20 sec., the smear layer was not completely removed. 4. If the time of root conditioning is above 3 min., collagen-like fibers covering the circum tubular dentin surface were shown even in the group which was conditioned with 3% EDTA solution. In conclusion, EDTA solution was a very effective root conditioning agent like low pH root conditioning agents which had various disadvantages. Therefore, using EDTA solution, more successful periodontal regeneration could be obtained.