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現代建築의『脫走線』과 '大地存在의 再認識'에 관한 硏究
황인성,황병찬,진정 全北大學校 附設 都市및環境硏究所 1999 都市 및 環境硏究 Vol.14 No.1
This study aims to find the exit of crisis of human being, that's why it was appeared one of the serious problems in the contemporary society. The modern productions that is uniform and standard made people a shallow being. The modern society was considered that human being is not related so many the other world, but isolated the ideal. This study based on the desire theory written by G. Deleuze and F. Guattari searches out how to recover the thickness of human being, so the line of flight related that the world was contained by the truth of 'earth of being' can be found through the extension of horizon of human life. If it is possible to extend the horizon through the fission theory or to find the line of flight related the various world, this suggest that we approach the new direction between human being and the contemporary society.
비대면 자동결제 시스템을 위한 CNN 기반 객체 검출기의 고처리량 및 전력 효율적인 FPGA 구현
황인성,이해인,김현 대한전자공학회 2024 전자공학회논문지 Vol.61 No.10
2019년 말부터 시작된 코로나19로 인해 무인 소매 시장은 최근 몇 년간 큰 폭의 성장세를 보이며 향후 성장세를 이어갈 것으로 예상된다. 본 연구는 빠르게 확대되고 있는 무인 소매 시장의 저비용, 고성능 시스템 요구에 부응하기 위해 엣지 디바이스에 구현이 가능한 전력효율과 처리율이 높은 비대면 자동결제 시스템을 설계하는 것을 목표로 한다. 실제로, 본 논문은 경량 물체 감지 모델인 tiny-YOLOv3 가속기 IP를 설계하고 Xilinx Zynq Ultrascale+ MPSoC ZCU102 Evaluation Kit에 주변 장치를 구성함으로써 실제 비대면 자동결제 환경에서 소비자들의 구매 품목을 식별하여 자동결제가 가능한 비대면 자동결제 시스템을 구축했다. 제안하는 tiny-YOLOv3 가속기 IP를 포함한 비대면 자동결제 시스템은 여러 이미지 추론 과정에서 5.04W의 전력만을 소비하며 137.22GOP/s의 처리량을 달성했다. 결과적으로, 제안한 시스템은 엣지 디바이스를 기반으로 비대면 결제 시스템을 구축하고자 하는 무인 소매 시장 참가자들의 시장 접근을 활성화할 수 있을 것으로 기대한다. Since the onset of the COVID-19 pandemic, the unmanned retail market has experienced substantial growth and is projected to continue its upward trajectory. This research aims to address the demand for low-cost, high-performance systems in this rapidly expanding market by designing a power-efficient, high-throughput, contactless automatic payment system that can be implemented on edge devices. This paper presents the design of a lightweight object detection model, the tiny-YOLOv3 accelerator IP, and integrates it with peripheral devices on the Xilinx Zynq Ultrascale+ MPSoC ZCU102 Evaluation Kit. The objective is to establish a contactless automatic payment system capable of processing consumer purchases in a real-world environment. The proposed system consumes only 5.04W of power while achieving a throughput of 137.22GOP/s across multiple image inference tasks. The results indicate that the proposed system can significantly enhance market access for participants in the unmanned retail sector aiming to deploy contactless payment solutions.
황인성 대한영상의학회 1990 대한영상의학회지 Vol.26 No.3
Authors retrospectively analyzed ultrasonographic findings of 61 cases of breast lesions which were proven pathologically at Dae Rim St. Mary's Hospital from May 1987 to February 1990. The results were as follows: 1. Of all 61 cases, there were 27 fibroadenomas, 13 fibrocystic diseases, 11 carcinomas, 8 abscesses 1, sclerosing adenosis, and 1 intraductal papilloma. 2. findings suggesting benignancy were smooth contour, round or oval shape, homogeneously echolucent internal echo, echogenic boundary echo, and posterior enhancement. In the cases of abscess, the findings were rather irregualr contour, strong posterior enhancement, and dirty, inhomogeneous internal echo. While irregular and lobulated shaped, inhomogeneous and mixed internal echo and perctoral muscle invasion were suggested for malignancy. 3. The sensitivity was 98% and the selectivity 58% in benign mass excluding abscesses, 63% and 98% and in abscesses, and 55% and 98% in carcinomas. In conclusion, ultrasonography s one of the excellent imaging modality for detecting breast lesions larger than 5mm in size, but unfortunately some of the malignant tumors simulate benignancy, thus we considered fine needle aspiration biopsy and adjunctive imaging modalities such as film mammography must be followed for better detection of breast cancer.
소비자는 배터리 스왑핑 전기차를 선호할까?: 이산선택실험법을 이용한 잠재선호 분석
황인성 한국기술혁신학회 2023 기술혁신학회지 Vol.26 No.6
전기차의 구조적 한계에 기인하는 긴 충전시간을 극복하기 위해 기존의 유선충전(Plug-in charging) 방식 대신 배터리 스왑핑(Battery swapping) 방식을 채택하는 기업이 늘고 있다. 이에 본 연구는 이산선택실험법(Discrete choice experiment)을 사용해 유선충전 전기차 및 배터리 스왑핑 전기차 구매에 대한 소비자 선호를 비교 분석하였다. 차량의충전방식, 충전시간, 충전인프라 접근성, 총소유비용, 주행거리, CO2 배출량을 속성으로 선택집합을 구성하였으며, 이를 기반으로 한국 소비자 400명 대상의 설문조사를 실시했다. 혼합로짓모형(Mixed logit model)으로 효용함수 추정결과, 소비자는 배터리 스왑핑 전기차보다 유선충전 전기차를 더 선호하며 선택집합을 구성하는 모든 속성이 소비자 선호에 유의한 영향을 미치는 것으로 나타났다. 이러한 실증결과는 전기차 시장 침투율을 높이고자 하는 정부와 기업에정책적·전략적 시사점을 제시할 것으로 기대된다. To overcome charging time limitation of electric vehicles (EVs), there is a growing trend among companies to adopt battery swapping methods instead of the conventional plug-in charging approach. This study aims to carry out a comparative analysis of consumer preferences when considering the purchase of plug-in charging EV and battery swapping EV. A discrete choice experiment was conducted involving 400 Korean consumers, wherein charging time, charging infrastructure accessibility, total cost of ownership, driving range, and carbon dioxide (CO2) emissions were considered as key attributes. The estimation results using a mixed logit model revealed that all attributes had a significant impact on consumer preferences. Additionally, Korean consumers exhibited a stronger preference for plug-in charging EVs over battery swapping EVs. The findings of this study are expected to offer valuable policy and strategic insights for governments and companies aiming to enhance the market penetration of EVs.