터키안 부위에 발생한 지주막 낭종 : 증례보고 Case Report

허진우,임영진,박종태,김태성,이봉암,임언,김국기 대한신경외과학회 1999 Journal of Korean neurosurgical society Vol.28 No.5

미국 공동주택의 건물 외피 에너지코드 검증을 위한BIM 에너지 계획 방안-뉴욕시 에너지 코드를 기준으로-

허진우 국제문화기술진흥원 2022 The Journal of the Convergence on Culture Technolo Vol.8 No.4

The number of architects who adopt BIM(Building Information Modeling) as the design method are gradually increasing because of its productivity and efficiency. Climate Change and Global Warming lead to legislation of new energy regulations and strengthen existing ones. The current architectural design methods (2D CAD) take a lot of time and effort to verify energy codes and are hard to adjust according to the design changes. The purpose of this study is to show the effectiveness of the BIM in building envelop energy modeling of the housing project. In the process of design method change, We could contribute to increasing productivity and efficiency in building energy verification through BIM because the updated value could be calculated simultaneously without information omission or recalculation process. The procedure for the study is as follows. Using BIM of the Goldin at Essex Crosing Housing Project by Revit 2011 as a case model, this study analyze the criteria for energy plan to conform to the energy code in NYC. The result value from the setting of the Revit model is compared with the reference value required by the NYC Energy Code. Finally, the data from BIM are entered into COMckeck, the energy verification program provided by U.S. Department of Energy, to check whether the building envelope energy performance conforms to NYC Energy Code. BIM의 생산성과 효율성 때문에 건축설계 방식으로 BIM을 선택하는 건축가들이 증가하고 있다. 또한 건물의 에너지 사용량에 대한 인식 제고와 환경에 대한 관심이 높아지면서 빌딩에너지 코드의 필요성에 대한 요구가 증가하고 있다. 현재 많이 사용하고 있는 2D CAD 설계방식으로는 건물 외피 에너지코드를 검정하는데 많은 시간과 노력이 소요되며 디자인 변경에 다른 즉각적인 대응이 어렵다. 이 연구의 목적은 BIM을 통한 건물 외피 에너지 모델링의 효율성을 보여주는 데 있다. 우리는 BIM을 통해 설계과정에서 디자인 변경에 따른 정보 값을 누락이나 재계산 과정 없이 동시에 산출할 수 있기 때문에 건물 외피 에너지코드 검증에서 생산성과 효율성을 높이는 데 기여할 수 있다. 연구의 절차는 다음과 같다. Revit 2011으로 만든 the Goldin at Essex Crossing 공동주택의 BIM을 사례 모델로 하여, 뉴욕시의 에너지 코드에 부합하기 위한 에너지 계획의 기준을 분석한다. Revit 모델의 설정을 통해 나온 결과 값과 뉴욕시의 에너지코드에서 요구하는 기준 값을 비교한다. 최종적으로 미국 에너지국 (U.S. Department of Energy)에서 제공하는 에너지 검증 프로그램인 COMcheck에 데이터값을 입력하여 건물 외피 에너지 성능이 뉴욕시 에너지 코드에 부합하는 지 여부를 체크한다.

제주 옥수수에서 열대거세미나방 비래 세대 및 후세대의 피해양상 특성

허진우,김수빈,김동순 한국응용곤충학회 2021 한국응용곤충학회지 Vol.60 No.2

열대거세미나방(Spodoptera fruligiperda)은 열대성 비래해충으로서 우리나라에서도 최근 비래하여 피해가 발견되고 있다. 본 연구는 열대 거세미나방 비래 세대와 후세대의 옥수수에 대한 피해양상을 파악하고자 수행하였다. 옥수수 품종별 열대거세미나방 비래 세대에 의한 피해주율은 적게는 4.3% (알록이옥수수)에서 많게는 33.0% (초당옥수수)로 다양하였으며, 전체 평균 피해주율은 13.2% 이었다. 열대거세미나방에 피해 를 받은 옥수수 중에서 최종 번데기까지 이르는 데에 성공한 주의 비율은 19.3% 이었다. 비래 후세대가 암이삭에 미치는 피해는 비래세대에서 거의 무시할 수준으로 확인된 것과는 달리 높게 나타났으며, 종자까지 피해받은 암이삭의 비율은 60%가 되었다. 유충의 분산은 2령기에 가장 활발하였으며, 한 이랑을 따라서 일렬로 일어났다. 기타 열대거세미나방의 피해발달과 본결과의 활용방안에 대하여 고찰하였다. The fall armyworm (FAW), Spodoptera frugiperda (Smith), is a notorious invasive migratory pest native to the tropics that has recently invaded South Korea with subsequent damage to cornfields. This study was conducted to evaluate the damage patterns on corn plants caused by the migratory and subsequent generations of FAW. The early migrant generation-related infestation rates reached an average of 13.2%, ranging from a minimum of 4.3% (‘Allog-i’) to a maximum of 33.0% (‘Chodang’), depending on the corn cultivar. The proportion of FAW larvae-infested corn plants, in which the FAW survived until the pupal stage was 19.3%. The subsequent FAW generation caused considerable damage to the ears, resulting in 60% of ears with damaged kernels. This damage was markedly different from the nearly negligible damage caused by the migratory generation. The FAW larval dispersion was the most dynamic during the second instar stage and occurred along the same cornrow in line. In addition, we discuss the development of corn pant damage patterns caused by FAW. In summary, the results of the present study would provide useful basic information for the damage analysis of this pest for future studies.

인공신경망을 이용한 2015년 이전 PM<SUB>2.5</SUB> 일평균 수치 추정 방법 제안

허진우,임병극,조민주 한국대기환경학회 2022 한국대기환경학회 학술대회논문집 Vol.2022 No.10

고출력용 산업안전 보조전원의 Supercapacitor

허진우,강안수 대한안전경영과학회 2003 대한안전경영과학회 학술대회논문집 Vol.2003 No.11

In the electrode fabrication of unit cell, it was ascertained that electrochemical characteristics were greatly increased with 90 wt.% of BP-20, 5 wt.% of Super P and 5 wt.% of mixed binder [P(VdF-co-HFP) : PVP =7 : 3] The self-discharge of unit cell showed that diffusion process was controlled by the ion concentration difference of initial electrolyte due to the characteristics of Electric Double Layer Capacitor (EDLC) charged by ion adsorption in the beginning, but this by current leakage through the double-layer at the electrode/electrolyte interface had a minor effect and voltages of curves were remained constant regardless of electrode material. The electrochemical characteristics of 2.3 V/3,000 F grade EDLC were as follows: 0.35 m of DC-ESR (100 A discharge), 0.14 mof AC-ESR (AC amplitude 100 mV), 2.80 Wh/kg (3.73 Wh/L) of energy density and 4.64 kW /kg (6.19 kW/L) of power density. Power output was compatible with electric vehicle applications, uninterrupted power supply and engine starter, in due consideration of Ragone relations.

동아시아 한파 발생에 적합한 열역학적 구조 연구

허진우,허창회,박태원,최우석,정지훈,김진원 한국기상학회 2018 한국기상학회 학술대회 논문집 Vol.2018 No.10

형태론 필터 및 RSST를 이용한 계층적 영상 분할 ( Hierarchical Image Segmentation Using Morphological Filter and RSST )

허진우,김남철 대한전자공학회 1996 대한전자공학회 학술대회 Vol.1996 No.1

유즙 호르몬 과분비 선종에 대한 감마 나이프 수술의 역할

허진우,임영진,임언,양재영,고준석,김태성,이봉암,김국기,Hur, Jin Woo,Lim, Young Jin,Leem, Won,Yang, Jae Young,Koh, Jun Seok,Kim, Tae Sung,Rhee, Bong Arm,Kim, Gook Ki 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.3

Objective : The treatment for prolactin secreting pituitary adenoma(prolactinoma) include pharmacology, surgery, radiation therapy or radiosurgery. The recent development of radiological imaging and microsurgery has made transsphenoidal microsurgery the treatment of choice for most prolactin secreting pituitary adenoma. Despite its low morbidity and mortality, relatively high recurrence and failure rate have been reported. Recent advances in neuroimaging provide a precise targeting in radiosurgery for treatment of prolactin secreting pituitary adenoma. In this regard, Gamma knife radiosurgery has been proposed as an alternative primary treatment modality or adjuvant therapy. Patients and Methods : Twenty three patients with prolactin secreting pituitary adenoma have been treated with Gamma knife radiosurgery in our institute from March 1992 to September 1998. We analyzed clinical, radiological and endocrinological changes in 21 patients who were followed up for an average of 35.7 months. Results : The mean age was 34.9 years and 16 patients were treated with Gamma knife radiosurgery as primary treatment and 5 patients underwent Gamma knife radiosurgery for residual tumors after microsurgery. The margin of the tumor was incorporated within the 40 to 80% and the mean marginal dose was 24.5 Gy. Clinical improvement in the last follow-up were present in 17 cases(81.0%) and 3 of 5 infertility patients became pregnant after Gamma knife radiosurgery. Tumor control rate after Gamma knife radiosurgery was 100%. Endocrinological normalization in the last follow-up were obtained in 12 cases(57.1%). In three cases, hormonal normalizations were present in early period(3-32 months) but serum hormone levels were elevated subsequently. Conclusion : We conclude that the Gamma knife radiosurgery for prolactin secreting pituitary adenoma seems to be safe and effective as adjuvant therapy after microsurgery and primary treatment modality in selective patients.

Flexible transparent electrodes made of core-shell-structured carbon/ metal hybrid nanofiber mesh films fabricated via electrospinning and electroplating

허진우,전환진,안치원 한국물리학회 2017 Current Applied Physics Vol.17 No.11

The development of practical flexible transparent electrodes is one of the major core technology fields for future nanoscale optoelectronics. Despite the many efforts to replace the indium tin oxide (ITO) electrode, preparing practical alternatives that satisfy the essential requirements of flexible transparent electrodes remains a challenge. In this work, core-shell-structured carbon/metal hybrid mesh (CSCMHM) films, comprised of a metal layer coated onto conductive carbon nanofiber network structures, were fabricated using electrospinning and electroplating and demonstrated potential for use as flexible transparent electrodes. In contrast to previously described techniques that use conventional polymer fibers as sacrificial structures, the conductive carbon nanofibers used in the current technique that we developed provided bi-functionality: they formed conductive core channels and artificial supports of the metal structures. The CS-CMHM films displayed superior optoelectrical, mechanical, and thermal properties: they transmitted ~91% of visible light, showed a low sheet resistance of ~2.7 U/sq, and displayed excellent mechanical stability even after 10000 cycles of bending the films to a radius of 5 mm; also, applying a voltage of only 3 V to a transparent heater based on CS-CMHM films resulted in the temperature of the film surface increasing very rapidly in the first 20 s, and soon thereafter reaching ~280 C. Based on these results, we believe that the use of CS-CMHM films and the process we developed to fabricate them open up great opportunities for high-performance flexible transparent electronics.

서울시 대기질 개선 정책의 효과: 대기오염물질의 일변동 분석

허진우,허창회,김상우,김진원,오혜련,최우석 한국기상학회 2020 한국기상학회 학술대회 논문집 Vol.2020 No.10