한상룡 가옥(현 가회동 백인제 가옥)의 원형과 조영개념

박상욱,Park, Sang-Wook 한국건축역사학회 2013 건축역사연구 Vol.22 No.4

The founder of the 'Paik In - Je House in Ga Hui Dong' in the Bukchon Hanok Village was found as Han Sang- Ryong (1880.11.14. ~ 1947.?) and the time when it was built was by the late June in 1913. Han Sang Ryong was the director of the HanSung Bank during the Japanese colonial period and he was the industrialist in the management committee and the economy coordinator in the economic area. The way how he could accumulate the huge amount of money was because his Uncle Lee Yoon Yong and Lee Wan Yong brothers were participating in various concessions under the protection of the colony government such as Chosun colonial government. Through seven years of preparation for building the mansion, the social function he presented to his house was 'the house built for the banquet hall'. He invited many celebrities of politics and economy to this house and built his fundaments for his social activity through interactions. To solve the construction concept, he used the way of 'duplicity and juxtaposition', and his mansion was reborn as a modernized urban Hanok through the reinterpretation by his program out of the old Confucian rules. Han Sang Ryong's mansion is significant and valuable in the period since it was a pioneer in challenging the creative housing in the developing stage of Hanok in early modern era, and the highest social level people were trying to show off through the Hanok as a product.

지능형 CCTV 기반 동적 범죄예측 기술 동향

박상욱,오선호,박수완,임경수,최범석,박소희,김상원,한승완,한종욱,김건우,Park, Sangwook,Oh, Seon Ho,Park, Su Wan,Lim, Kyung Soo,Choi, Bum Suk,Park, So Hee,Ghyme, Sang Won,Han, Seung Wan,Han, Jong-Wook,Kim, Geonwoo 한국전자통신연구원 2020 전자통신동향분석 Vol.35 No.2

Predicting where and when a crime may occur in an area of interest is one of many strategies of predictive policing. Multidimensional analysis, including CCTV, can overcome the limitations of hotspot prediction, especially of violent crimes. In order to identify the precursors of a crime, it is necessary to analyze dynamic data such as attributes and activities of people, social information, environmental information, traffic flows, and weather. These parameters can be recognized by CCTV. In addition, it provides accurate analysis of the circumstances of a crime in a dynamic situation, calculates the risk, and predicts the probability of a crime occurring in the near future. Additionally, it provides ways to gather historical criminal datasets, including sensitive personal information.

900 MHz 대역을 포함한 WLAN/WiMAX 시스템에 적용 가능한 4중대역 안테나 설계 및 제작

박상욱,최태일,최영규,윤중한,Park, Sang-wook,Choi, Tea-Il,Choi, Young-kyu,Yoon, Joong-Han 한국정보통신학회 2019 한국정보통신학회논문지 Vol.23 No.10

본 논문에서는 마이크로스트립 급전 구조와 네 개의 분기 선로 그리고 접지면에 슬릿을 갖도록 설계하여 WLAN과 WiMAX 시스템에 적용 가능한 4중 대역 안테나를 설계 및 제작하였다. 제안된 안테나는 18.0 mm(W) × 50.0 mm(L) × 1.0 mm(h)의 유전체 기판 위에 16.0 mm(W1) × 48.0 mm (L8)의 크기로 설계하였으며 18.0 mm(W) × 18.7 mm(L6) 접지면에 2.9 mm(W7) × 4.0mm(L7)의 슬릿을 삽입하여 설계하였다. 제작 및 측정결과로부터 -10dB 기준으로 900 MHz에서는 60.8 MHz (873.0~933.8 MHz), 2.4 GHz 대역에서는 310 MHz (2.33~2.64 GHz), 3.4 GHz 대역에서는 420 MHz (3.39~3.81 GHz) 그리고 5.0 GHz 대역에서는 2,070 MHz (4.62~6.69 GHz) 대역폭을 얻었다. 또한 무반사실의 측정결과로부터 4중대역에서 이득과 방사패턴 특성을 나타내었다. In this paper, we designed a four-band antenna that can be applied to WLAN and WiMAX systems by designing a microstrip feeding structure, four branch lines and a slit on the ground plane. The proposed antenna is designed with a size of 16.0 mm (W1) × 48.0 mm (L8) on a dielectric substrate of 18.0 mm (W) × 50.0 mm (L) × 1.0 mm(h). and a slit of 2.9 mm (W7) × 4.0 mm (L7) is inserted into the ground plane of 18.0 mm (W) × 18.7 mm (L6). Based on -10 dB production and measurement results, it obtained 60.8 MHz (8,730~9,338 MHz), 310 MHz (2.33~2.64 GHz) in the 2.4 GHz band, 420MHz (3.39~3.81 GHz) in the 3.4 GHz band, and 2,070 MHz (4.62~6.69 GHz) in the 5.0 GHz. In addition, the gain and radiation pattern characteristics of the quadrant band are measured from the measurement results anechoic chamber.

논문 ( Articles ) : 슬러리에 CO2 기체의 흡수 ( 1 ) - 카올린과 백카본 슬러리에 CO2 의 용해도와 확산계수 -

박상욱,김성수,김종현 ( Sang Wook Park,Sung Soo Kim,Jong Hyun Kim ) 한국화학공학회 1990 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.28 No.1

액 - 액 불균일계에서 상이동촉매의 반응속도론 해석

박상욱,문진복,황경선 ( Sang Wook Park,Jin Bok Moon,Kyong Son Hwang ) 한국공업화학회 1994 공업화학 Vol.5 No.2

Aliquat 336 상이동촉매에 의한 n-butyl acetate의 알칼리 가수분해반응을 액-액 불균일 반응계로 한 반응기구를 준1차반응 모델, 계면반응 모델 및 본체반응 모델로 나타내어 복잡한 액-액 불균일계 반응을 간단히 취급할 수 있었다. 분산교반조를 사용하여 측정한 반응전화율로부터 준1차반응 모델과 계면반응 모델 그리고 평면교반조로부터 본체반응 모델로서 반응기구를 각각 설명할 수 있었으며, 각 모델로부터 구한 반응속도상수는 25℃에서 각각 3.1x10^(-4), 7.3x10^(-4), 6.6㎥/kmol.s이었다. The reaction conversions of n-butyl acetate in the alkaline hydrolysis of n-butyl acetate by Aliquat 336 were measured in a flat agitator and a dispersion agitator. These measured data was used to analyze the complicated reaction mechanism of the liquid-liquid heterogeneous reaction by a phase transfer catalyst with a pseudo-first order reaction model, a interfacial reaction model and a bulk-body reaction model. The pseudo-first order reaction model and the interfacial reaction model could be explained by the experimental data from the dispersion agitator and the bulk-boby reaction model could be explained by those from the flat agitator and the reaction rate constants were 3.1×10^(-4), 7.3×10^(-4), 6.6㎥/kmol.s from these models at 25℃, respectively.

폴리(트리메틸렌 테레프탈레이트-co-트리메틸렌 이소프탈레이트)의 열적 특성

박상욱,김영호,Park, Sang Wook,Kim, Young Ho 한국섬유공학회 2012 한국섬유공학회지 Vol.49 No.5

Poly(trimethylene terephthalate-co-trimethylene isophthalate) [P(TT-co-TI)] copolymers with various contents of TI unit were synthesized via a two-step process of transesterification and polycondensation in a high pressure reactor in order to modify the thermal properties of PTT. Effects of TI content on the crystallization and other thermal properties were investigated by DSC, TGA, polarizing microscope, and synchrotron WAXD analysis. DSC analysis indicated that the cold crystallization temperature ($T_{cc}$) increased and glass transition temperature ($T_g$) and melting temperature ($T_m$) decreased with increasing TI content in the copolymer. The radial growth rate of PTT spherulite formed during the decrease of melt-crystallization as TI content increases. The growth and melting of the PTT crystallite were also analyzed in-situ by synchrotron WAXD patterns. A decrease in both $T_m$ during the heating process and melt-crystallization temperature ($T_{mc}$) during the cooling process for P(TT-co-TI)s were confirmed by WAXD patterns. Although the incorporation of the non-crystallizing comonomer unit of TI into the crystalline body of PTT reduced the crystallization rate of PTT, it did not affect the spherulite formation and crystal structure of PTT. Isothermal TGA analysis revealed that the activation energy for isothermal degradation with weight loss up to 10% of P(TT-co-TI)s was 200~240 kJ/mol, depending on the weight loss and TI content in the copolymer.

Bag of Words 기반 음향 상황 인지를 위한 주파수-캡스트럴 특징

박상욱,최우현,고한석,Park, Sang-Wook,Choi, Woo-Hyun,Ko, Hanseok 한국음향학회 2014 韓國音響學會誌 Vol.33 No.4

음향 상황 인지(acoustic context awareness)는 다양하게 발생되는 음원들로부터 어떠한 장소인지 또는 어떠한 사건이 발생하는지를 판단하는 기술로 음향 이벤트 검출 또는 인식 보다 한 단계 더 복잡한 문제이다. 기존의 상황인지 기술은 음향 이벤트 검출 또는 인식 기술에 기반하여 현재 상황을 인지하는 방법을 사용하고 있다. 하지만 이와 같은 접근 방법은 여러 음원이 동시에 발생하거나 유사한 음원이 발생하는 실제 환경에서 정확한 상황 판단이 어렵다. 특히 버스와 지하철은 승객들에 의한 잡음으로 상황을 인지하기 힘들다. 이러한 문제를 극복하기 위해 본 논문에서는 유사한 음향 이벤트가 발생하는 버스와 지하철 상황을 인식할 수 있는 Bag of Words 기반의 상황 인지 알고리즘을 연구하고 코드북 생성을 위한 특징벡터를 제안한다. 제안하는 특징벡터의 효용성은 Support Vector Machine을 이용한 실험을 통해 검증했다. Among acoustic signal analysis tasks, acoustic context awareness is one of the most formidable tasks in terms of complexity since it requires sophisticated understanding of individual acoustic events. In conventional context awareness methods, individual acoustic event detection or recognition is employed to generate a relevant decision on the impending context. However this approach may produce poorly performing decision results in practical situations due to the possibility of events occurring simultaneously or the acoustically similar events that are difficult to distinguish with each other. Particularly, the babble noise acoustic event occurring at a bus or subway environment may create confusion to context awareness task since babbling is similar in any environment. Therefore in this paper, a frequency-cepstral feature vector is proposed to mitigate the confusion problem during the situation awareness task of binary decisions: bus or metro. By employing the Support Vector Machine (SVM) as the classifier, the proposed feature vector scheme is shown to produce better performance than the conventional scheme.

Chemical Reaction of Carbon Dioxide with AMP in w/o Emulsion Membrane

박상욱,최병식,김성수,이재욱,Park Sang-Wook,Choi Byoung-Sik,Kim Seong-Soo,Lee Jae-Wook The Membrane Society of Korea 2004 멤브레인 Vol.14 No.4

본 연구에서는 준 회분식 교반조를 사용하여 polybutene (PB)와 polyisobutylene (PIB)고분자를 용해한 벤젠 용액을 연속상, 물을 불연속상으로 구성한 w/o 에멀션액막에 $CO_2$을 흡수시켜 흡수속도를 측정하였다. 점탄성을 나타내는 Deborah 수를 사용하여 점탄성 비뉴튼액체에서 구한 부피물질전달계수 ($k_La$)를 고찰하고, 수용액에 첨가한 2-amino-2-methyl-1-propanol(AMP)와 $CO_2$의 반응 메카니즘을 해석하였다. Carbon dioxide was absorbed into water-in-oil (w/o) emulsion composed of aqueous 2-amino-2-methyl-1-propanol (AMP) droplets as a dispersed phase and benzene solutions of polybutene and polyisobutylene as a continuous phase in a flat-stirred vessel to investigate the effect of non-Newtonian rheological behavior on the rate of chemical absorption of $CO_2$, where the reaction between $CO_2$ and AMP in the aqueous phase was assumed to be a pseudo-first-order reaction. It was expressed that PIB with elastic property made the rate of chemical absorption of $CO_2$ accelerated by comparison of mass transfer coefficient of $CO_2$ in the non-Newtonian liquid with that in the Newtonian liquid.

고고도 장기체공무인기 주익 Spar 비선형 구조 해석

박상욱,신정우,이무형,김태욱,Park, Sang-Wook,Shin, Jeong-Woo,Lee, Mu-Hyoung,Kim, Tae-Uk 한국항공운항학회 2015 한국항공운항학회지 Vol.23 No.1

In order to increase endurance flight efficiency of long endurance electric powered UAV, main wing of UAV should have high aspect ratio and low structural weight. Since a spar which consists of thin and slender structure for weight reduction can cause catastrophic failure during the flight, it is important to develop verification method of structural integrity of the spar with the light weight design. In this paper, process of structural analysis using non-linear finite element method was introduced for the verification of structural integrity of the spar. The static strength test of the spar was conducted to identify structural characteristic under the static load. Then, the experimental result of the spar was compared to the analytical result from the non-linear finite element analysis. It was found that the developed process of structural analysis could predict well the non-linear structural behavior of the spar under ultimate load.

4급 암모늄 상이동 촉매에 의한 Acrylonitrile 의 라디칼 중합

박상욱,카세게르 페라니아 크리스티아와티,백재진(Sang Wook Park),Christiawaty Ferania Kaseger,Jea Jin Beak 한국고분자학회 1995 폴리머 Vol.19 No.1