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.

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.

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.

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.

탄소원 종류에 따른 환경친화성 생물소재인 세균 섬유소의 생산 및 특성

박성진,최승훈,박민주,이오미,손홍주,Park, SungJin,Choi, Seunghoon,Park, MinJoo,Lee, O-Mi,Son, Hong-Joo 한국환경과학회 2020 한국환경과학회지 Vol.29 No.8

Production of Bacterial Cellulose (BC) by Gluconacetobacter sp. A5 was studied in shaken culture using different cost-effective carbon sources and its structural and mechanical properties were evaluated. Glycerol showed the highest level (7.26 g/l) of BC production, which was about three times higher than the yield in glucose medium. BC production depended not only on the decrease in pH, but also on the ability of Gluconacetobacter sp. A5 to synthesize glucose from different carbon sources and then polymerize it into BC. All BC produced from different carbon sources exhibited a three-dimensional reticulated structure consisting of ultrafine cellulose fibriles. Carbon sources did not significantly change the microfibrile structure of the resulting BC. BC produced from glucose medium had the lowest water-holding capacity, while BC from molasses medium had the highest. XRD data revealed that all BC were cellulose type I, the same as typical native cellulose. The crystalline strength of BC produced in glucose medium was the highest, and that in molasses medium was the lowest. Our results suggest that glycerol could be a potential low-cost substrate for BC production, leading to the reduction in the production cost, and also to produce BC with different mechanical properties by selecting appropriate carbon source.

경계요소법을 이용한 사출성형금형 냉각시스템의 최적설계

박성진,권태헌,Park, Seong-Jin,Kwon, Tai-Hun 대한기계학회 1997 大韓機械學會論文集A Vol.21 No.11

The cooling stage is the very critical and most time consuming stage of the injection molding process, thus it cleary affects both the productivity and the part quality. Even through there are several commercialized package programs available in the injection molding industry to analyze the cooling performance of the injection molding coling stage, optimization of the cooling system has npt yet been accomplished in the literature due to the difficulty in the sensitivity analysis. However, it would be greatly desirable for the mold cooling system designers to have a computer aided design system for the cooling stage. With this in mind, the present study has successfully developed an interated computer aided design system for the injection molding cooling system. The CAD system utilizes the sensitivity analysis via a Boundary Element Method, which we recently developed, and the well-known CONMIN alforuthm as an optimization technique to minimize a weighted combination (objective function) of the temperature non-uniformity over the part surface and the cooling time related to the productivity with side constranits for the design reality. In the proposed objective function , the weighting parameter between the temperature non-uniiformity abd the cooling time can be adjusted according to user's interest. In this cooling system optimization, various design variable are considered as follows : (i) (design variables related to processing conditions) inlet coolant bulk temperature and volumetric flow rate of each cooling channel, and (ii) (design variables related to mold cooling system design) radius and location of each cooling channel. For this optimum design problem, three different radius and location of each cooling channel. For this optimum design problem, three different strategies are suffested based upon the nature of design variables. Three sample problems were successfully solved to demonstrated the efficiency and the usefulness of the CAD system.

양태진 편, 『기록보존학개론』, 김상호 지음, 『기록보존론』

박성진,Park, Seong-Jin 한국기록학회 2000 기록학연구 Vol.0 No.2

천연 추출물을 이용한 무 피클의 제조 및 품질 평가

박성진,최윤정,이민정,서혜영,윤예랑,민승기,이혜진,이재홍,강성란,김현정,박성희,Park, Sung Jin,Choi, Yun-Jeong,Lee, Min Jung,Seo, Hye-Young,Yun, Ye-Rang,Min, Sung Gi,Lee, Hye Jin,Lee, Jae Hong,Kang, Seong Ran,Kim, Hyun Jung,Park, Sung H 한국식생활문화학회 2020 韓國食生活文化學會誌 Vol.35 No.6

This study examined the physicochemical properties of radish pickle containing different natural preservatives (grapefruit seed extract, green tea extract, rosemary, or olive) stored for 0, 1, 2, 3, and 4 weeks. The hardness and color of the radish pickles with the grapefruit seed extract was higher than the other radish pickles during storage from week 0 to week 4. A 14.52% and 13.80% decrease in hardness and color were observed in the radish pickles with grapefruit seed extract (GFE), respectively. In addition, the total phenolic content was highest in the GFE in natural preservatives. Based on the results, GFE was selected as the optimal natural preservatives, and the growth of total viable bacteria and yeast were evaluated. The total viable bacteria and yeast showed similar patterns to the control. These results are expected to be useful in producing radish pickles with optimal quality and contribute to the development of various foods in the food industry.

Chronic juvenile stress exacerbates neurobehavioral dysfunction and neuroinflammation following traumatic brain injury in adult mice

박성진,Park Hyun-Jeong,Kim Backyoun,Kim Young-Min,Lee Suk Woo,Kim Hoon 대한응급의학회 2023 Clinical and Experimental Emergency Medicine Vol.10 No.2

Objective: Chronic stress in adolescence may affect brain maturation and predispose individuals to psychiatric disorders in adulthood. However, whether chronic juvenile stress influences vulnerability to nonpsychiatric brain injuries, such as traumatic brain injury (TBI), remains unclear. Therefore, we hypothesized that juvenile stress-related neuronal circuit disturbances could aggravate brain damage following TBI in adulthood. Methods: For chronic stress, we used an unpredictable chronic mild stress (UCMS) procedure for 5 weeks in adolescent mice. This was followed by a controlled cortical impact (CCI) injury to evaluate the influence of chronic juvenile stress on brain damage progression following TBI in adult mice. Mice underwent UCMS alone, UCMS followed by CCI, CCI alone, or sham operation. We characterized neurobehavioral deficits (Barnes maze, open field, and light-dark tests), neuroinflammation (ionized calcium-binding adapter molecule 1 [Iba-1], glial fibrillary acidic protein [GFAP], and neuron-specific nuclear protein [NeuN] immunoreactivity), and apoptosis (B-cell lymp [Bcl-2], Bcl-2-associated X protein [Bax], and procaspase-3 immunoreactivity). Results: Following CCI, mice exposed to UCMS showed decreased spatial learning and memory in the Barnes maze test compared with unstressed mice. A significant increase in Iba-1, GFAP, and Bax/Bcl-2 immunostaining levels was observed in the mice exposed to UCMS followed by CCI compared with the CCI-only mice. In contrast, a significant decrease in NeuN immunostaining levels was observed in the UCMS with CCI group compared with the CCI alone group. Conclusion: Chronic stress in a juvenile mouse model aggravates neurobehavioral impairments and potentiates glial reactivity, neuronal injury, and apoptosis following moderate-to-severe TBI that occurs in adulthood. The present study suggests that juvenile chronic stress may influence poor outcomes following TBI in later adulthood.

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