• Title/Summary/Keyword: multiple verification

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An Effective Threat Evaluation Algorithm for Multiple Ground Targets in Multi-target and Multi-weapon Environments

  • Yoon, Moonhyung;Park, Junho;Yi, Jeonghoon
    • International Journal of Contents
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    • v.15 no.1
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    • pp.32-38
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    • 2019
  • In an environment where a large number of weapons are operated compared to a large number of ground targets, it is important to monitor and manage the targets to set up a fire plan, and through their multilateral analysis, to equip them with a priority order process for targets having a high threat level through the quantitative calculation of the threat level. Existing studies consider the anti-aircraft and anti-ship targets only, hence, it is impossible to apply the existing algorithm to ground weapon system development. Therefore, we proposed an effective threat evaluation algorithm for multiple ground targets in multi-target and multi-weapon environments. Our algorithm optimizes to multiple ground targets by use of unique ground target features such as proximity degree, sorts of weapons and protected assets, target types, relative importance of the weapons and protected assets, etc. Therefore, it is possible to maximize an engagement effect by deducing an effective threat evaluation model by considering the characteristics of ground targets comprehensively. We carried out performance evaluation and verification through simulations and visualizations, and confirmed high utility and effect of our algorithm.

Development and Verification of a Simultaneous Analytical Method for Whole Blood Metals and Metalloids for Biomonitoring Programs (바이오모니터링 프로그램을 위한 혈중 금속류 동시분석법 개발 및 확인 평가)

  • Cha, Sangwon;Oh, Eunha;Oh, Selim;Han, Sang Beom;Im, Hosub
    • Journal of Environmental Health Sciences
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    • v.47 no.1
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    • pp.64-77
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    • 2021
  • Objective: Biological monitoring of trace elements in human blood samples has become an important indicator of the health environment. The purpose of this study was to detect and evaluate multiple metal items in blood samples based on ICP-MS, to perform comparative evaluation with the existing analysis method, and to develop and verify a new method. Methods: 100 μL of whole blood from 80 healthy subjects was used to analyze ten metals (Sb, tAs, Cd, Pb, Mn, Hg, Mo, Ni, Se, Tl) using ICP-MS. Verification of the analysis method included calculation of linearity, accuracy, precision and detection limits. In addition, a comparative test with the conventional graphite furnace atomic absorption spectroscopy (GF-AAS) method was performed. In the case of Pb, Cd, and Hg in whole blood, cross-analysis between Pb, Cd, and Hg analysis methods was performed to confirm the difference between the existing method and the new method (ICP-MS). Results: The coefficient of determination (R2) was 0.999 or higher in seven items and 0.995 or higher in three items. The Pb result showed that Pearson's correlation coefficient was very high at 0.983, and the intraclass correlation coefficient was 0.966. The Cd result showed that Pearson's correlation coefficient was 0.917 between the existing method and the new analysis concentration value. Its intraclass correlation coefficient was 0.960, and there was no significant difference between the two groups. Hg had a low correlation at 0.687, and the intraclass correlation coefficient was 0.761, which was lower than that of Pb and Cd. The intra-day and inter-day accuracy of Pd and Cd were satisfactory, but Hg did not meet the criteria for both accuracy and precision when compared with the conventional analysis method. Conclusion: This study can be meaningful in that it proposes a more efficient and feasible analysis method by verifying a blood heavy metal concentration experiment using multiple simultaneous analyses. All samples were processed and analyzed using the new ICP-MS. It was confirmed that the agreement between the two methods was very high, with the agreement between the current and new methods being 0.769 to 0.998. This study proposes an efficient simultaneous methodology capable of analyzing multiple elements with small samples. In the future, studies of various applications and the reliability of ICP-MS analysis methods are required, and research on the verification of accurate, precise, and continuous analysis methods is required.

Factors to Influence Customer Satisfaction and Future Behavior Intention for LOHAS Exhibition (로하스박람회의 고객만족과 미래행동의도에 미치는 영향요인)

  • Ra, Jeung-Im;Kim, Hyoung-Gil;Yang, Sung-Soo
    • Journal of Distribution Science
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    • v.14 no.9
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    • pp.133-147
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    • 2016
  • Purpose - The Purpose of this study is to observe the value of LOHAS as an exhibition that is perceived to be a specialized local exhibition with good fame and differentiated advantage as well as the spectators' will to visit the exhibition coming from the future behavior intention of visitors. Research design, data, and methodology - In order to achieve the purpose of this study, This study organized questionnaire after setting a hypothesis based on the theoretical background from the parameters. verification of the hypothesis by statistically analyzing the answers for questionnaire follows. Finally, the implication of this study is drawn through comprehensive discussion while This study indicated from the limits of the study and future direction for research. This study set up a model to research the influence on the structuring factors in LOHAS exhibition in forming perceived value, customer satisfaction and future behavior intention. Frequency analysis was used for getting demographic characteristics, verification of plausibility, reliability of measured parameters and factors analysis. This study have performed verification of difference at selection property level based on multiple regression analysis and demographic nature. Results - To summarize the study result, through the verification of hypothesis about meaningful influence among structuring factors in LOHAS exhibition, perceived value and customer satisfaction shows some noticeable points to focus on. That is, it is established things that partial adoption and meaning relationship of partial influence. The perceived value affected both customer satisfaction and future behavior intention meaningfully. Conclusions - This study could note that in the structuring factors of LOHAS exhibition, perceived value for visitors and customer satisfaction play their roles positively on the future behavior intention. In conclusion, this study implies that strategic measures are necessary to fulfill the structuring factors of LOHAS exhibition as they would make positive impact on acknowledged value, customer satisfaction and future behavior intention to contribute to the growth and development of LOHAS exhibition. Also it suggests that the method to join each other with activities is necessary to strengthen the properties of the exhibition and position well to be a solid local exhibition.

Autonomous Mission Management Software Design and Verification Technique for Unmanned Aerial Vehicles (무인기 자율 임무관리 소프트웨어 설계 및 검증 기법)

  • Chang, Woohyuk;Lee, Seung-Gyu;Kim, Yun-Geun;Oh, Taegeun
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.49 no.6
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    • pp.505-513
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    • 2021
  • We propose an autonomous mission management software design and verification technique for unmanned aerial vehicles to autonomously mitigate dynamic situation changes occurred in the inside and outside of an aircraft in compliance with the mitigation priority order. The proposed autonomous mission management software is designed in a modular architecture that consists of concurrently executing multiple threads. To verify it, we suggest three verification steps: 1) software integration by checking the expected request/response messages between the threads for all possible dynamic situation changes; 2) integration test to verify the software functionality; 3) performance test to verify the quantitative software performance. Especially, the software integration test environment is built and utilized to carry out the integration and performance tests.

Input Certification protocol for Secure Computation

  • Myoungin Jeong
    • Journal of the Korea Society of Computer and Information
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    • v.29 no.8
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    • pp.103-112
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    • 2024
  • This study was initiated with the aim of authenticating that inputs have not been tampered with without disclosing them in the case of computations where multiple inputs are entered by participants using the same key. In general, in the authentication stage, authentication is performed after the input value is disclosed, but we do not want to reveal the inputs until the end. This is a case of deviating from the traditional security model in which malicious participants exist in cryptography, but it is a malicious attack method that can actually occur enough. Privacy infringement or distortion of calculation results can occur due to malicious manipulation of input values. To prevent this, this study studied a method that can authenticate that the message is not a modified message without disclosing the message using the signature system, zero-knowledge proof, and commitment scheme. In particular, by modifying the ElGamal signature system and combining it with the commitment scheme and zero-knowledge proof, we designed and proved a verification protocol that the input data is not a modified data, and the efficiency was improved by applying batch verification between authentication.

Improvement of Face Verification Performance Using Multiple Instances and Matching Algorithms (다중획득 및 매칭을 통한 얼굴 검증 성능 향상)

  • 김도형;윤호섭;이재연
    • Proceedings of the Korea Multimedia Society Conference
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    • 2003.05b
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    • pp.450-453
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    • 2003
  • 본 논문에서는 멀티모달 생체인식 시나리오 중에서, 단일 생체 특징에 적용되는 다중 획득 및 매칭이 시스템 성능에 기여하는 효과에 대하여 논의한다. 얼굴이라는 단일 생체 검중 시스템에 본 논문에서 제안한 간단한 다중 획득 및 매칭 결합 방법론들을 적용하였고, 실제적인 평가모델과 데이터베이스를 구축하여 이를 실험하고 결과를 분석하였다 실험결과, 단일 획득 및 매칭 시스템보다 25% 가량 향상된 우수한 성능을 나타냈으며, 이는 얼굴 검증 시스템 구축에 있어 반드시 고려되어야 할 사항 중에 하나임을 보여준다.

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The performance analysis and design verification about the fire control system using Modeling and Simulation (M&S를 이용한 사격통제 시스템의 설계검증 및 성능분석에 관한 연구)

  • Yun, Dong Sik;Kim, Chon Hwan;Lim, Young Taek;Bae, Yoon Ji
    • Journal of the Korean Society of Systems Engineering
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    • v.5 no.1
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    • pp.1-6
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    • 2009
  • Gun fire solution computed in ballistic computing unit (BCU) needs to evaluated before applying in real fire. In this paper, ballistic performance analysis method is studied for reasonable prediction or hit probability with ballistics error presentation on hitting plane. Also Gun fire solution using interacting multiple model (IMM) algorithm is analyzed through proposed method.

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Volume Holographic Fingerprint Recognition System for Personal Identification (개인 인증을 위한 체적 홀로그래픽 지문인식 시스템)

  • 이승현
    • Journal of the Korean Society of Safety
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    • v.13 no.4
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    • pp.256-263
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    • 1998
  • In this paper, we propose a volume holographic fingerprint recognition system based on optical correlator for personal identification. Optical correlator has high speed and parallel processing characteristics of optics. Matched filters are recorded into a volume hologram that can store data with high density, transfer them with high speed, and select a randomly chosen data element. The multiple reference images of database are prerecorded in a photorefractive crystal in the form of Fourier transform images, simply by passing the image displayed in a spatial light modulator through a Fourier transform lens. The angular multiplexing method for multiple holograms of database can be achieved by rotating the crystal by use of a step motor. Experimental results show that the proposed system can be used for the security verification system.

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Closed-form Expressions for Capacity Bounds of MRT/MRC MIMO with Multiuser Diversity (다중사용자 다이버시티가 적용된 MRT/MRC MIMO의 Capacity Bound의 Closed-form 표현)

  • Lee, Myougn-Won;Mun, Cheol;Yook, Jong-Gwan
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.31 no.12A
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    • pp.1223-1228
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    • 2006
  • Closed-form expressions for capacity bounds of multiuser diversity combined with maximum ratio transmission (MRT) and maximum ratio combining (MRC) at each link are presented under the assumption of independent and quasi-static flat multiple-input multiple-output (MIMO) Rayleigh fading channels. The analysis results precisely agree with the numerical verification results and clearly show the impact of MRT/MRC on multiuser diversity.

Automatic Mold Design Methodology to Optimize Warpage and Weld Line in Injection Molded Parts (사출 성형품의 휨과 웰드라인을 최적화하기 위한 자동 금형설계 방법)

  • ;Byung H. Kim
    • Transactions of Materials Processing
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    • v.9 no.5
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    • pp.512-525
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    • 2000
  • Designers are frequently faced with multiple quality issues in injection molded parts. These issues are usually In conflict with each other, and thus tradeoff needs to be made to reach a final compromised solutions. The objective of this study is to develop an automated injection molding design methodology, whereby part defects such as warpage and weld line are optimized. The features of the proposed methodology are as follows: first, Utility Function approach is applied to transform the original multiple objective problem into single objective problem. Second is an implementation of a direct search-based Injection molding optimization procedure with automated consideration of process variation. The Space Reduction Method based on Taguchi's DOE(Design Of Experiment) is used as a general optimization tool in this study. The computational experimental verification of the methodology was partially carried out for a can model of Cavallero Plastics Incorporation, U. S. A. Applied to production, this study will be of immense value to companies in reducing the product development time and enhancing the product quality.

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