공영자전거 이용에 영향을 미치는 지역적 환경특성 연구

이슬이(Lee, Seul-Yi),신은경(Shin, Eun-Kyung),김세용(Kim, Sei-Yong) 대한건축학회 2014 대한건축학회논문집 Vol.30 No.12

Urban transportation system is usually interactive with land use planning. Therefore, urban characteristics should be taken account to facilitate bicycle use in an urban area. The former way of drawing out traffic density projection was considered to be inadequate since by force of habit, transportation planning and complex development did not impose simultaneously but in a particular sequence. This study aims to establish an activation plan for the Public bicycles use and draw out factors for bicycle station’s selection of location through analyzing space correlation between urban characteristics and the usage of the Public bicycles. The analyzed result in the case of Changwon-si shows that there is a spatial autocorrelation between two factors. Moreover, it also arrived at the conclusion that Spatial Lagged Model and Spatial Error Model has 10% higher relevancy than Ordinary Least Square. The operation of Spatial Lagged Model arranges factors in order of correlation: main facility’s total floor area, public transportation density, traffic accident rate, and population density.

Preparation and Characterization of Ultramicroporous Carbons for Hydrogen Storage

이슬이(Lee, Seul-Yi),박수진(Park, Soo-Jin) 한국신재생에너지학회 2011 한국신재생에너지학회 학술대회논문집 Vol.2011 No.05

In this work, we prepared ultramicroporous carbons (UC) prepared by pyrolyzing poly(vinylidene fluoride) with different carbonization temperatures, and investigated the hydrogen storage behaviors. The surface functional groups and specific elements of UC were confirmed by Fourier-transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS), respectively. Textural properties were analyzed using N₂ adsorption isotherms at 77 K. The hydrogen storage capacity of the UC samples were investigated by BEL-HP at 298 K/10 MPa. From the results, it was found that the hydrogen storage capacity was enhanced with increasing of specific surface area, resulting from the formation of ultramicropore on the UC.

Effect of Magnesium Nanoparticles on Graphite Oxide for Hydrogen Storage Behaviors

이슬이(Lee, Seul-Yi),박수진(Park, Soo-Jin) 한국신재생에너지학회 2011 한국신재생에너지학회 학술대회논문집 Vol.2011 No.05

In this work, we prepared Mg nanoparticles loaded graphite oxide (Mg-G) as a function of Mg content in order to investigate hydrogen storage behaviors. The structure and morphology of the Mg-G samples were characterized by X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM). The textural properties of the samples were evaluated using N₂/77 K adsorption isotherms. The hydrogen adsorption capacities were investigated at 298 K/10 MPa. As a result, the hydrogen adsorption capacities of the Mg-G were enhanced with increasing the Mg content. Therefore, it was found that the presence of Mg on graphite surfaces created hydrogen-favorable sites, resulting in enhancing the hydrogen adsorption capacity.

Effect of Nickel Oxide on Hydrogen Storage Behaviors of Mesoporous SBA-15

이슬이(Lee, Seul-Yi),박수진(Park, Soo-Jin) 한국신재생에너지학회 2009 한국신재생에너지학회 학술대회논문집 Vol.2009 No.11

In this work, we prepared the Ni-loaded porous SBA-15 (SBA-15) by a depositionprecipitation (D-P) method, in order to enhance the hydrogen storage capacity. The structure and morphology of the Ni/SBA-15 were characterized by X-ray diffraction (XRD) and field emission transmission electron microscopy (FE-TEM). The results showed that, at the Ni loading used at the DP times in the range of 0-120 min, SBA-15 preserved the well-ordered hexagonal porous arrangement. The textural properties of the Ni/SBA-15 were analyzed using N2 adsorption isotherms at 77 K. Specific surface area and mesopore volume of the samples were determined from the Brunauer-Emmett-Teller (BET) equation and Barrett-Joiner-Halenda (BJH) method, respectively. The hydrogen storage capacity of the Ni/SBA-15 was evaluated at 298 K/10 MPa. The hydrogen storage capacity of the Ni/SBA-15 was increased in accordance with Ni content. Consequently, it was found that the presence of Ni on mesoporous SBA-15 created hydrogen-favorable sites which enhanced the hydrogen storage capacity by spillover effect.

Effect of Acid Treatments on Hydrogen Storage Behaviors of Ordered Mesoporous Carbons

이슬이(Lee, Seul-Yi),박수진(Park, Soo-Jin) 한국신재생에너지학회 2010 한국신재생에너지학회 학술대회논문집 Vol.2010 No.06

We investigated the effect of chemical acid treatments on hydrogen storage behaviors of the ordered mesoporous carbons (MCs). The surface functional groups and specific elements of the MCs were characterized with Fourier Transform Infrared (FT-IR) spectrometry and X-ray photoelectron spectroscopy (XPS). Also, the changes in the surface functional groups of the MCs were quantitatively detected by Boehm's titration method. The structural properties of the MCs were investigated using X-ray diffraction (XRD). The hydrogen adsorption capacity of the MCs was evaluated by means of adsorption isotherms at 77 K/1 bar. The formation of surface functional groups by the acidic treatments could influence on the hydrogen storage capacity of the MCs.

편광상이 고리 기반 광섬유 다파장 필터의 입력 편광으로 제어되는 채널 간격 스위칭에 대한 연구

이슬이(Seul-Lee Lee),이용욱(Yong Wook Lee) 한국조명·전기설비학회 2020 조명·전기설비학회논문지 Vol.34 No.2

In this paper, we propose an optical fiber multiwavelength filter based on a polarization-diversified loop (PDL), whose channel spacings (CSs) can be controlled by its input state of polarization (SOP). The PDL-based filter consists of a polarization beam splitter, three half-wave plates (HWPs), a Faraday rotator (FR), and two polarization-maintaining fiber (PMF) segments with equal birefringence and different lengths. At proper orientation angle sets (θ<SUB>h1</SUB>, θ<SUB>h2</SUB>, θ<SUB>h3</SUB>) of the three HWPs, the proposed filter can have its polarization-dependent transmittance, offering the CS-switchable operation realized by switching between two orthogonal input SOPs of linear horizontal polarization (LHP) and linear vertical polarization (LVP). In particular, at a fixed input SOP, a half-period wavelength switching operation, i.e., an interleaving operation, can also be implemented by controlling only one HWP angle (θ<SUB>h1</SUB> or θ<SUB>h3</SUB>). Theoretical prediction was verified by experiments. For orthogonal input SOPs of LHP and LVP, the fabricated PDL-based filter could provide transmission spectra with CSs of ∼0.9 and ∼0.3nm or vice versa at appropriate sets of (θ<SUB>h1</SUB><SUB></SUB>, θ<SUB>h2</SUB>, θ<SUB>h3</SUB>), respectively, and each of the transmission spectra could be interleaved by adjusting only θ<SUB>h1</SUB> or θ<SUB>h3</SUB>.

외부 및 비내부 접근법을 결합한 수술을 시행한 재발성 전두동내 침습적 모균증 1예

이슬아(Seulah Lee),맹재환(Jae-Hoan Maeng),윤완수(Wan-Soo Yoon),김동현(Dong-Hyun Kim) 대한두개저학회 2021 대한두개저학회지 Vol.16 No.1

Mucormycosis is a rare, life-threatening fungal disease caused by Mucorales. We report a case of rhinocerebral mucormycosis in a poorly controlled diabetic patient. Despite seven admissions and surgical treatments, the disease had recurred several times, and there was suspected necrotic tissue in the frontal sinus. Finally, we treated this patient appropriately with extensive surgical debridement-endoscopic sinus surgery and craniotomy. Since mucormycosis frequently recurs, especially in people with diabetes, as in this case, more aggressive surgical treatments and antifungal agents should be used in the early stages.

코로나19 후유증을 호소하는 태음인 환자에 대한 치험 1례

이슬,박지은,이용재,김소형,이정윤,Lee, Seul,Park, Jieun,Lee, Yong-jae,Kim, So-hyoung,Lee, Jeongyun 사상체질의학회 2021 사상체질의학회지 Vol.33 No.4

Objectives The purpose of this case study was to report a patient with Post COVID-19 syndrome treated with Seunggeumjowi-tang based on Sasang Constitutional Medicine. Methods The patient was hospitalized after being diagnosed with COVID-19 and was suffering with post from COVID-19 syndrome such as fatigue and loss of appetite after discharge. The patient was diagnosed as Taeeumin and treated with Seunggeumjowi-tang. The progress was evaluated with the global assessment scale (GAS). Results and Conclusions Fatigue and anorexia were significantly improved, and other symptoms were restored as before. This case shows the possibility of Sasang Constitutional medication treatment for the sequelae of COVID-19.

눈치와 거부민감성, 그리고 정신건강의 관계

이슬비 ( Seulbi Lee ),오충광 ( Chunggwang Oh ),허재홍 ( Jaehong Heo ) 사단법인 아시아문화학술원 2021 인문사회 21 Vol.12 No.6

이 연구는 한국사회에서 구성원의 정신건강을 증진시키는 것으로 알려져 있는 눈치가 거부민감성을 매개로 정신건강을 증진시키는지 알아보는 데 목적이 있다. 이를 검증하기 위해 이 연구에서는 눈치가 거부민감성을 매개로 정신건강을 증진시킬 것이라는 완전매개모형을 연구모형으로 설정하고 이를 검증하고자 하였다. 이를 위해 대학생 310명(남 129명, 여 181명)을 대상으로 자료를 수집하고 구조방정식 모형으로 이를 검증하였다. 그 결과 연구모형은 자료에 잘 부합하는 것으로 나타났다. 이 결과는 주의를 외부상황으로 돌리고 현실적인 상황해석을 하는 눈치 기능이 주관적 안녕감과 심리문제 같은 정신건강에 도움이 된다는 사실과 눈치를 상담전략으로 활용할 수 있다는 점을 시사하였다. 향후 연구에서는 개인 문화성향에 따른 모형 적합도 차이와 매개변인에 대한 추가연구가 필요할 것으로 보인다. The purpose of this study was to investigate whether Nunchi, known to promote the mental health of members of Korean society, enhances the mental health of Koreans through rejection sensitivity (RS). The proposed model was the fully mediated model that Nunchi would enhance mental health in the mediation of RS. To verify this model, data were collected from 310 colleges students (male 129, female 181) and analyzed by the SEM. Results showed that the model fit the data, suggesting that Nunchi, which diverts attention to external situations and interprets the situation realistically, could be beneficial for the mental health such as subjective wellbeing and psychological problems. And Nunchi could be used as the intervention in psychotherapy. In future research, it is necessary to examine whether the model fit varies with individual cultural orientation. And it seems that additional studies on mediating variables are needed.

소화기 질환을 대상으로 한 3개 한의학파의 다빈도 병증 및 처방 비교 연구

이슬,예상준,장호,이용재,박지은,채한,이정윤,Lee, Seul,Yea, Sang-Jun,Jang, Ho,Lee, Yong-jae,Park, Jieun,Chae, Han,Lee, Jeongyun 사상체질의학회 2020 사상체질의학회지 Vol.32 No.2

Objectives The aim of this study is to analyze the therapeutic direction and characteristics of gastrointestinal diseases by three societies of Korean medicine by comparing the frequent disease patterns and prescriptions of them. Methods The experts of the three societies of Sasang constitutional medicine, Hyungsang medicine and Sanghan-GeumGwe medicine discussed and confirmed a list of clinical data to make use for diagnosis. Then, clinical data on 200 patients suffering from gastrointestinal symptoms were collected. The each experts diagnosed appropriate disease patterns and decided prescriptions according to the method of their affiliated society. Results and Conclusions The three different societies' experts showed the similarity in the sense of categorizing disease patterns focusing on the specific physiology and pathology of the patients, while the each societies have different diagnosis systems. Treating chronic gastrointestinal patients, they treated the mental or psychological symptoms of the patients as well as their physical problems. Based on this study, it is necessary to develop a systematic and precise research model to objectively and statistically analyze the correlation of disease patterns and prescriptions by different societies.