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지능적 전략계획시스템을 위한 신경망 전문가시스템 접근방법
한재호 釜慶大學校 1998 釜慶大學校 論文集 Vol.3 No.1
This paper presents a neural expert system approach to designing an intelligent strategic planning system. The main recipe of the proposed neural expert system is a bi-directional inference mechanism capable of performing forward and/or backward inference mechanism. Four strategic planning portfolio models are considered such as BCG matrix, Growth/Gain matrix, GE matrix, and Product/Market Evolution Portfolio matrix. The proposed neural expert system could provide "what-if" functions as well as "goal-seeking" functions, which proved to be very useful for the unstructured decision making problems such as strategic planning problems. What-if functions were accomplished through the forward inference mechanism, enabling the neural expert system to provide appropriate outputs with respect to the given inputs. Also goal-seeking functions were realized through the backward inference mechanism, enabling the neural expert system to show the appropriate inputs (or conditions) to guarantee the desired level of outputs. To implement our idea, we developed a prototype system, named StratPlanner, running on Windows 95. Using the Korean automobile data, we performed experiments under the experimentally designed competitive situations. Results support our supposition that the neural expert systems approach is useful for performing competitive analyses. Further research topics associated with the current research are discussed.
적응제어기법을 이용한 다자유도 진동모델의 위치 및 자세결정에 관한 연구
한재호,김재열,오환교 한국자동차공학회 1993 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
To present the dynamic interference and response variation subjected to mass load for the object of six-degrees of freedom of vibration model, the result obtained are as follows:<br/> <br/> I) In the case of the object subjected to mass load, the experimentation is carried out on two-degrees of freedom of translation (one direction) and revolution(one direction).<br/> It is confirmed that kinetic equation is reasonable by ascertaining that interference of 0.19 arcsec occurs for the input of translation, 0.1 lμm and interference of 0.022μm does for the input of revolution, 0.5 arcsec.<br/> <br/> 2) In the case of making the operation of transfer matrix analog circuit, simulation is carried out by differentiating incomplete signal seleted by optional choice. ; so it is ascertained that the theory responses are almost accord wi th the experiment response by finding interference of 1. 7xl0 ̄³arcsec for the input of revolution, 0.1μm and interference of 1.4x10 ̄⁴ for the input of translation, 0.5 aresec on open-loop system.<br/>
한재호,Sung-Woong Park 한국물리학회 2007 Current Applied Physics Vol.7 No.1
We fabricated and investigated the thermal characteristics of TO-CAN (transistor-outline-can) packaged long wavelength GaInAsP/InP FabryPerot laser diode. Characteristic temperature of 55 K and peak wavelength shift of 0.4 nm/.C depending on the temperaturessuring junction temperature. Results from experiment and estimation are compared at extreme operating conditions in which showagreement within 1.C.
한재호,제갈동욱,이승옥,김명신,김용구 대한진단검사의학회 2022 Laboratory Medicine Online Vol.12 No.1
Background: Prostate cancer (PCa) is the leading cause of cancer-related death worldwide. Prostate specific antigen (PSA) is a useful biomark- er that can be screened for the diagnosis and prognosis of PCa. We evaluated the analytical performance of the PSA test using an HISCL-5000 im- munoassay (Sysmex, Japan). Methods: The analytical and clinical evaluation of PSA was performed using an HISCL-5000 chemiluminescent enzyme immunoassay. For analyz- ing the precision, linearity, trueness, limit of detection (LOD), limit of blank (LOB) and for comparing the method with UniCel DxI-800 ACCESS (Beck- man Coulter, USA), 510 samples of PSA were collected. Clinical analyses were performed for benign prostate hyperplasia (BPH) and PCa. The area under the receiver operating characteristic curve (AUROC) was used for evaluating the diagnostic potential. Results: The within-laboratory coefficient of variation (CV) for low- (3.81 ng/mL) and high- (18.19 ng/mL) level PSA was 5.46% and 8.50%, re- spectively. Linearity was verified from 0.002 to 189.900 ng/mL for PSA. LOB and LOD were 0.007 and 0.020 ng/mL, respectively. Bias between the expected true and measured values was -9.70-11.16%. The regression equation by method comparison was y = -1.0605+0.9223x (R2 = 0.99). AUROC values for diagnosis of PCa and BPH compared to non-malignant disease were 0.52 and 0.75, respectively. When compared to healthy sub- jects, AUROC values were 0.96 and 0.97, respectively. Conclusions: PSA analysis using an HISCL-5000 immunoassay is reliable and can be used in clinical settings.