강화유리 표면의 친수성 특성 조사에 관한 연구

박성진,서진우,이승규,Park, Sung Jin,Seo, Jin Woo,Lee, Seung Kyu 한국광학회 2013 한국광학회지 Vol.24 No.1

본 연구에서는 플라즈마 장치의 광 특성과 접촉각 특성을 조사하여 스마트폰에 사용되는 강화유리 표면의 친수성 특성을 알아 보였다. 본 연구에서 공정 가스의 분압과 입력 전압의 정도에 대한 강화유리 표면의 친수화 정도를 조사하였다. 각 변수에 따라 아르곤 가스의 이온화 정도에 따라 차이가 있음을 알 수 있었다. 본 연구에서, 강화유리 표면은 처리되기 전과 비교하여 접촉각의 변화나 광방출 특성에서 나타난 것들을 토대로 친수화가 되었음을 알 수 있었다. In this study, we assessed the hydrophilic characteristics of the surface of toughened glass used in smartphones by investigating the optical properties and contact angle characteristics of the plasma device. In this study, the characteristics were different depending on the partial pressure of the gas, input voltage, and degree of ionization of argon gas. In this study, the surface of the toughened glass became more hydrophilic, as indicated by contact angle and light spectrum, after plasma treatment than before the treatment.

한국형 회전교차로의 노면표시 및 교통안전표지에 관한 제언

박성진,이석기,이동민,Park, Sung-Jin,Lee, Suk-Ki,Lee, Dong-Min 대한교통학회 2011 교통 기술과 정책 Vol.8 No.4

구멍쇠미역의 식품영양학적 접근 및 생리활성 분석

박성진,민경진,박태길,Park, Sung-Jin,Min, Kyung-Jin,Park, Tae-Gil 한국식품영양학회 2012 韓國食品營養學會誌 Vol.25 No.4

본 연구는 구멍쇠미역을 대상으로 건강기능성식품의 소재로의 활용을 위한 가능성을 타진하고자 영양성분 분석을 통한 식품영양학적 접근 및 생리활성 기능을 분석하였다. 식품 영양학적 접근에서의 구멍쇠미역의 일반성분은 건량 기준으로 당질 45.4%, 조단백질 15.0%, 조지방 2.3% 및 조회분 33.1%이었고, 구멍쇠미역 100 g의 함유 열량은 262.3 kcal로 분석되었으며, 총 식이섬유소 함량은 34.0%로 나타났다. 또한, 총 18종의 아미노산으로 구성되었으며, 그 함량은 12,402.42 mg이었고, 무기질 중 칼륨의 함유량이 가장 높았고, 그 다음이 칼슘, 나트륨, 마그네슘 순으로 나타나, 알칼리성 재료임을 알 수 있었다. 구멍쇠미역 추출물의 총 페놀 함량 및 총 플라보노이드 함량분석 결과, 각각 $34.1{\pm}2.56mg/g$과 $4.9{\pm}0.26mg/g$으로 나타났다. 다양한 항산화 평가 모델(DPPH, FRAP, 환원력, ABTS)을 통하여 구멍쇠미역 추출물의 항산화 활성을 측정한 결과, 구멍쇠미역 추출물의 농도가 증가함에 따라 항산화능이 유의적으로 증가하는 것으로 나타났다. 이상의 결과로부터 구멍쇠미역은 식품으로서의 이용가치가 매우 크며, 구멍쇠미역 추출물은 항산화능이 있음을 확인할 수 있었다. The purpose of this study is to determine the possibility of using Agarum cribrosum as a natural health food source. To accomplish this purpose, the contents of the general and antioxidant activities of Agarum cribrosum were measured. The contents of carbohydrate, crude protein, crude lipid and ash were 45.4%, 15.0%, 2.3% and 33.1%. The calories of Agarum cribrosum were 262.3 kcal and total dietary fiber of Agarum cribrosum was 34.0%. The protein contained a total of 18 different kinds of amino acids. The content of amino acids was 12,402.42 mg/100 g. The K was the largest mineral followed by Ca, Na and Mg, implying that Agarum cribrosum is an alkali material. The antioxidant activity of Agarum cribrosum was assessed by various radical scavenging assays using DPPH (2,2-diphenyl-1-picrylhydrazyl), FRAP (ferric ion reducing antioxidant power), reducing power, and ABTS (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid)). All antioxidant activity of Agarum cribrosum extract increased the concentration of the dependents. Total phenolic contents of Agarum cribrosum extract were $34.1{\pm}2.56mg/g$, and total flavonoids contents were estimated at $4.9{\pm}0.26mg/g$. General nutrients and other antioxidant bioactive materials in Agarum cribrosum were also potential materials for good health food. It is expected that a follow-up study of Agarum cribrosum through developing processed food and evaluation of their functional properties would provide useful information or sources of functional foods.

외상성 뇌실질내 혈종에 대한 상측방 키홀을 통한 내시경적 혈종 제거

박성진,하호균,정호,이상걸,박문선,Park, Sung-Jin,Ha, Ho-Gyun,Jung, Ho,Lee, Sang-Keol,Park, Moon-Sun 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.2

Objective : As a minimally invasive strategy, endoscopic technique was introduced for removal of the traumatic intracerebral hematoma. Material and Method : A 54-year-old man with three-day history of seizure and progressive mental deterioration after traffic accident was presented. Computerized Tomography(CT) of the brain showed a huge intracerebral hematoma on the right frontal lobe and ventricle. The operation was performed via right frontal superolateral keyhole with 2cm eyebrow skin incision. Using 0-degree and 30-degree angled lens 4mm rigid endoscopes, nearly all of the hematoma was evacuated under the direct endoscopic visualization and a ventricular catheter was exactly placed into the frontal horn of the right lateral ventricle at the end of procedure. Results : The seizure was discontinued and neurological status had been improved during postoperative periods. Postoperative CT demonstrated that most of the hematoma was removed and the ventricular drainge tube was exactly placed in the right foramen of Monro. Conclusion : With endoscopic technique, the authors successfully evacuated traumatic intracerebral hematoma and exactly placed the ventricular drainage catheter under direct visualization. This technique may be considered as an another option for removal of traumatic intracerebral hematoma.

읍소재지 중심가로의 보행환경 개선 방향 - 전라남도 4개 지방정부 읍소재지의 중심가로를 대상으로 -

박성진,강인호,Park, Sung-Jin,Kang, In-Ho 한국농촌건축학회 2021 농촌건축 : 한국농촌건축학회논문집 Vol.23 No.1

This study analyzed the path that affects the user's walking satisfaction on main street in four local government towns in Jeollanam-do. and as an empirical study to find the direction of improvement toward the main street from the perspective of walking, the results are as follows. First, it was found that the network had a direct (+) effect on walking satisfaction as a main street. In addition, it was analyzed that land use had no direct (+) effect on walking satisfaction on the main street, but had a direct (+) effect on the network. Second, it was analyzed from the fact that the walking environment does not have a direct (+) effect on walking satisfaction, but has a direct (+) effect on the network. and it was analyzed that the street-building relationship had a direct (+) effect on the street landscape, and the street landscape had a direct (+) effect on the walking environment. The study was completed by suggesting implications according to the above research results.

에이엘 스캔, 자동각막굴절계, 펜타캠의 각막 굴절력 비교 분석

박성진,임성협,이호영.Sung Jin Park. MD. Sung Hyup Lim. MD. Ho Young Lee. MD 대한안과학회 2014 대한안과학회지 Vol.55 No.7

<b>Purpose:</b> To investigate clinical availability of AL-ScanTM (Nidek, Gamagori, Japan) by comparing corneal refractive power with AL-ScanTM, AutokeratometerTM (Topcon KR-1, Tokyo, Japan) and PentacamTM (Oculus, Wetzlar, Germany) devices. <b>Methods</b>: Seventy-one patients (142 eyes) who visited our hospital for refractive surgery were tested using AL-Scan<sup>Ⓡ, Autokeratometer and Pentacam<sup>Ⓡ and corneal refractive power was compared among devices. <b>Results:</b> When comparing measurements with AL-Scan<sup>Ⓡ, Autokeratometer and Pentacam<sup>Ⓡ, the mean corneal refractive power was 43.37 ± 1.32 D (2.4 mm zone), 43.35 ± 1.32 D (3.3 mm zone), 43.36 ± 1.35 D, and 43.35 ± 1.36 D respectively and showed no significant differences. Corneal refractive power had strongly positive linear correlation (<em>p </em>< 0.001) and Bland-Altman plots showed high degree of agreement among AL-Scan<sup>Ⓡ, Autokeratometer and Pentacam<sup>Ⓡ devices. <b>Conclusions:</b> Because measuring ocular biometry with AL-Scan<sup>Ⓡ including axial length, intraocular lens power calculation and topography simultaneously is possible, clinical use is convenient. Corneal refractive power was not different when compared with autokeratometer and Pentacam<sup>Ⓡ, thus, AL-Scan<sup>Ⓡ can be used in the clinical environment. J Korean Ophthalmol Soc 2014;55(7):984-990

Harmonics(배음)와 Formant Bandwidth(포먼트 폭)를 이용한 음성특성(音聲特性)과 사상체질간(四象體質間)의 상관성(相關性) 연구(硏究)

박성진,김달래,Park, Sung-Jin,Kim, Dal-Rae 사상체질의학회 2004 사상체질의학회지 Vol.16 No.1

This study was prepared to investigate the correlation between Sasang constitutional groups and voice characteristics using voice analysis system(in this study, CSL). I focused on the voice characteristics in terms of harmonics, Formant frequency and Formant Bandwidth. The subjects were 71 males. I classified them into three groups, that is Soeumin group, Soyangin group and Taeumin group. The classification method of Constitution used two ways, QSCCII(Questionnarie for the Sasang Constitution Classification II) and Interview with a specialist in Sasang Constitution. So 71 people were categorized into 31 Soeumin(people), 18 Soyangin(people) and 22 Taeumin(people). Pitch is approximately similar to the fundamental frequency(F0) in voices. Shimmer in dB gives an evaluation of the period-to-period variability of the peak-to-peak amplitude within the analyzed voice sample. FFT(Fast Fourier Transform) method in CSL can display sampled voices into harmonics. H1 is the first peak and h2 is the second peak in the harmonics. The amplitude difference of h1 and h2(h1-h2) can be explained as the speaker's phonation type, And Formant frequency and bandwidth can be explained as the speaker's vocal tract. So I checked the harmonics and Formant frequency and Bandwidth as the voice parameters. First I have captured /e/ voices from all subjects using microphone. And then I analyzed /e/ voices with CSL. Power Spectrum and Formant History is the menu in the CSL which can display harmonics and Formant frequency and bandwidth. The results about the correlation between Sasang Constitutional Groups and voice parameters are as follows; 1. There is no significant amplitude difference of harmonics(h1-h2) among three groups. 2. There is the significant difference between Soeumin Group and Soyangin Group in Formant Frequency 1 and Formant Bandwidth 1(p<0.05). Any other parameters have no significance. I assume that Soyangin Group has clearer and brighter voice than Soeumin Group according to the Formant Bandwidth difference. And I think its result has coincidence with the context of "Dongyi Suse Bowon" and "Sasangimhejinam".

실린더형 압전소자 광지연선을 이용한 광 간섭형 단층촬영(OCT) 시스템 제작

박성진,김영관,김용평,Park, Sung-Jin,Kim, Young-Kwan,Kim, Yong-Pyung 한국광학회 2006 한국광학회지 Vol.17 No.2

원통형의 압접소자를 이용한 광지연선을 사용하여 광 간섭형 단층촬영 시스템을 제작하였다. 광지연선은 18 m 길이의 단일 모드 광섬유를 압전소자의 둘레에 134회 감아 구성하였으며 0.78 mm의 광경로 길이변화를 얻었다. 제작한 광 간섭형 단층촬영 시스템은 신호 대 잡음비 96.9 dB, 종방향 분해능 $18.6{\pm}0.5\;{\mu}m$, 횡방향 분해능 $5\;{\mu}m$의 특성을 보였다. We demonstrate a compact optical coherence tomography(OCT) system based on the optical fiber delay line controlled by a cylindrical piezo-electric transducer(PZT). An 18-m length of single mode fiber is wrapped under constant tension around a PZT. Approximately 134 windings are used. Wraps of the long length of fiber allow the small expansion of the PZT to be magnified to an optical path length delay of 0.78 m. The OCT system shows characteristics for 2-dimensional imaging, exhibiting 96.9dB of signal-to-noise ratio(SNR), $18.6{\pm}0.5\;{\mu}m$ of axial resolution, and $5\;{\mu}m$ of lateral resolution with samples.

EPC Network 기반 RFID 응용 시스템의 성능 향상을 위한 EPCIS 주소별 그룹 질의 기법

박성진,김대환,손민영,염근혁,Park, Sung-Jin,Kim, Dae-Hwan,Son, Min-Young,Yeom, Keun-Hyuk 한국정보처리학회 2011 정보처리학회논문지D Vol.18 No.2

These days RFID application has been developed rapidly. It has been applied to many business areas such as logistics and supply chains. The Electronic Product Code (EPC) Network Architecture, an open global standard, is proposed by EPCglobal for developing RFID enabled systems. People who want to obtain the product information which are master information and event information have to apply with EPC Network Architecture. However, EPCIS which has master information and event information has to be accessed base on each EPC. Therefore, there is lots of duplicate accessing to EPCIS because RFID application has to access the same EPCIS over again which makes all performance down in EPC Network. This paper proposes how to reduce access times to EPCIS using EPC grouping based on EPCIS address. We build EPC Network environment to experiment about performance of RFID application system and we prove the improvement of EPC Network. Our result shows the reducing the EPCIS communication time by maximum 99 percentages. 오늘날 RFID 응용 시스템은 점차 발전되고 물류, 유통, 항만 그리고 제조 등 다양한 산업분야에서 적용되고 있다. RFID 응용 시스템 개발을 위한 국제 표준으로 EPCglobal 에서는 EPC Network 아키텍처를 제시하고 있다. EPC Network 아키텍처를 통해 개체의 고유정보(master information) 및 이력정보(event information)를 수집해야 한다. 그러나 개체의 고유정보 및 이력정보를 저장하고 있는 EPCIS의 경우는 수집된 EPC와 각 개체가 가지는 이력정보의 수에 의존적으로 통신 횟수가 증가하며, 개별적인 EPC에 대한 처리로 인해 동일한 EPCIS와 여러 번 통신해야 하는 문제점이 존재한다. 이러한 문제점은 EPCIS와의 통신시간의 증가로 인해 RFID 응용 시스템의 성능을 저하 시키게 된다. 따라서 본 논문에서는 EPCIS와의 통신 시간을 감소시키기 위하여 동일한 EPCIS와의 통신을 제거하는 EPCIS 주소별 그룹 질의 기법을 제시한다. 또한, 본 논문에서 제시한 기법을 적용하고 실제 EPC Network 환경을 구축하고 다양한 실험을 통하여 효용성을 검증하였으며 EPCIS의 통신 시간이 최대 99% 감소하는 것을 확인할 수 있었다.

가로변 건축물 파사드의 관리 방향 설정에 관한 연구 - 광주광역시 문화전당 경계부 가로를 중심으로 -

박성진,김인호,Park, Sung-Jin,Kim, In-Ho 한국주거학회 2011 한국주거학회 논문집 Vol.22 No.2

This study is to examine architectural designers' views on the correlations between components and contextual principle of the roadside building facade with the roadside building facade on the border of Asian Culture Center in Gwangju which is expected to undergo a great change by public policies. For setting direction of the roadside building management at the region examined, height of facade, advertisement/signboard, security of continuity through surface pattern management, nodes building, array of height by story, awning/arcade and locality of advertisement/signboard should be induced to design with locality and consideration of local characteristics with silhouette, window and external colors is needed for discrimination from other cities. Regarding the realization method important thing was found that the planning and implementation of architectural design guidelines, architectural aesthetics of the pre-hearing enhancement, active citizen participation, and then additional landscape screening system, incentive schemes, landscape designation of landscape zone was found to be a major realization system.