• Title/Summary/Keyword: lab safety

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Comparative study of Safe Autonomous Driving Fumula: Responsibility-Sensitive Safety (RSS) model vs. Safety Force Field (SFF) (안전한 자율주행 모델 공식 : 인텔 모빌아이 RSS와 엔비디아 SFF)

  • Won, Minseok;Park, Hyungbin;Kim, Shiho
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 2022.06a
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    • pp.298-298
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    • 2022
  • 최최근 자율주행차의 안전한 주행을 보장하기 위한 모델 공식 기반 접근이 제시되고 있으며, 인텔-모빌아이의 RSS(responsibility-sensitive safety) 모델[1, 2]과 엔비디아의 SFF(Safety Force Field) 방법[2]이 주목받고 있다. 자율주행차 시뮬레이터을 이용하여 이러한 안전 주행 모델 적용의 효과와 역효과를 시뮬레이션하는 것은 자율주행 자동차와 제도의 개발에 매우 중요하다. 본 연구에서는 RSS와 SFF 모델을 살펴보고 이를 자율주행에 적용하기 위한 비교 연구 방법을 제안하고자 한다.

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A Study on the Safety against Secondary Disaster due to Submergence of Electrical Equipments in Underground Premises using Fuzzy Theory (퍼지이론을 이용한 지하구내 전기설비의 침수에 의한 2차 재해에 대한 안전성 연구)

  • Kim, Joon-Bum;Cho, Seong-Won;Kim, Jae-Min;Jung, Jong-Wook;Lim, Young-Bae;Jung, Jin-Soo
    • Proceedings of the KIEE Conference
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    • 2006.07d
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    • pp.2079-2080
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    • 2006
  • 지하상가와 같은 지하구내에 설치된 전기설비는 침수피해의 가능성이 상존한다. 그러므로 침수상황에서 재난복구를 위해 투입되는 인력에게 미칠 수 있는 2차 재해에 대한 안전성을 평가하고, 생명과 재산의 피해를 최소화 할 수 있는 적절한 대책이 필요하다. 본 연구에서는 먼저 지하구내 침수사고사례 조사를 통해 사고의 패턴을 분류하고 전기적 위해요소를 도출한다. 그리고 그것을 바탕으로 퍼지추론을 적용해서 침수상황을 통제하고 안전성을 평가하는 알고리즘과 시스템을 제안한다.

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Implementation of a Controller in a Steering Feel Simulator for SBW systems (SBW시스템을 위한 조향반력 시뮬레이터의 제어기 구현)

  • Park, Won-Yong;You, Choon-Young;Kim, Il-Hwan;Heo, Seung-Jin;Ahn, Hyun-Sik
    • Proceedings of the KIEE Conference
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    • 2008.10b
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    • pp.318-319
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    • 2008
  • In this paper, a steering feel simulator is designed and implemented using a steering wheel with a rotation angle sensor, torque sensor, and an ac motor for the generation of the required torque. The controller in the simulator consists of a 16-bit micro-controller, a D/A converter and A/D converters. The main objective of the controller is to perform torque control where the reference torque is calculated from the torque map for both the vehicle velocity and the wheel sensor cutout. It is shown via the experimentation using the proposed simulator that the simulator output performance can be easily understood for the variation of vehicle parameters or controller parameters.

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A Study on the Application of DFMEA for Safety Design of Weapon System (무기체계의 안전 설계를 위한 DFMEA 적용에 관한 연구)

  • Seo, Yang Woo;Oh, Young Il;Kim, Hee Wook;Kim, So Jung
    • Journal of the Korean Society of Systems Engineering
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    • v.18 no.1
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    • pp.46-57
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    • 2022
  • In this paper, we proposed the DFMEA Implementation Method for safety design of Weapon System. First, we presented the process for DFMEA. And then, the case analysis of OOO missile was performed in accordance with the process presented. After defining the system requirements of OOO missile, failure definition scoring criteria was set. In order to clarify the definition of failure, the failure was classified into safety, reliability, maintainability and others. After performing the function analysis, the relationship matrix analysis was performed to identify the failure mode according to the function without omission. After clarifying the failure classification, mode of failure, cause of failure and effect were analyzed to calculate the severity, occurrence and detection values. After the action priority was judged, the recommended action according to the failure classification was identified for the determined action priority. The results of this study can be used as a relevant basis for the design reflection and resource re-allocation of stakeholders.

Status and Prospect of Lactic Acid Bacteria with Antibiotic Resistance (항생제 내성을 가진 유산균의 현황과 전망)

  • Chon, Jung-Whan;Seo, Kun-Ho;Bae, Dongryeoul;Jeong, Dongkwan;Song, Kwang-Young
    • Journal of Dairy Science and Biotechnology
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    • v.38 no.2
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    • pp.70-88
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    • 2020
  • Lactic acid bacteria (LAB) form an essential part of the intestinal microbiota of the human body and possess the ability to stabilize the intestinal microbiota, strengthen immunity, and promote digestion as well as intestinal synthesis of vitamins, amino acids, and proteins. Hence, LAB are currently widely used in various products. However, due to the indiscriminate overuse of antibiotics in humans and livestock, bacterial resistance to antibiotics has been increasing rapidly, which has led to serious problems in the treatment of bacterial infections. Additionally, several reports have revealed that antibiotic-resistant LAB may infect people whose immune systems are not fully developed or whose immune systems are temporarily weakened. Therefore, it is imperative to consider the possibility of antibiotic-resistant LAB causing diseases in humans and animals, investigate the mechanism of action between antibiotics and LAB, and determine the relevant regulations for the safe use of LAB.

Exploring Possibilities of Intermediary Living Lab as a Platform (중간지원조직의 리빙랩 현황과 플랫폼으로서의 발전 가능성 탐색)

  • Seong, Jieun;Han, Kyu-young
    • Journal of Korea Technology Innovation Society
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    • v.20 no.4
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    • pp.915-938
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    • 2017
  • This study examines the case of living lab led by intermediary and explores the development possibility as living lab platform. The analyzed cases are 'The Seoul Innovation Park Living lab', 'Korea Senior Living lab' of Seongnam Senior Experience complex, and 'Disaster Safety Living lab'. As a result of the analysis, all three cases have formed a user panel to form a living lab platform, and provide living lab service to internal and external organizations. A common feature that combines a technology platform with a 4Ps-based governance platform is identified. However, the characteristics, the meaning, and the process are different from case to case. In the future, the living lab platform needs to share learning experiences that are going on individually, since domestic living lab platform is in the early stage. Through this, it is necessary to seek collaboration and cooperation with related similar projects, and to jointly promote institutional and physical infrastructures related to living labs.