http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Powerset Theory of Fuzzy Soft Sets
Ji?i Mo?ko? 한국지능시스템학회 2020 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.20 No.4
Fuzzy powerset theory is defined by a monad, and therefore it can be applied in computer science. Fuzzy soft sets generalize fuzzy sets and have considerable application potential in, for instance, decision-making and optimization. In this study, we prove that fuzzy soft sets also give rise to a powerset theory, which is also defined by a monad. As in the case of fuzzy sets, in fuzzy soft set theory, it is possible to use several theoretical constructions requiring the existence of a powerset theory and monads. We describe the construction of fuzzy soft relations as an example of the use of monads in fuzzy soft sets.
MicroRNA 452 regulates ASB8, NOL8, and CDR2 expression in colorectal cancer cells
Ji‑Su Mo,Soo‑Cheon Chae 한국유전학회 2021 Genes & Genomics Vol.43 No.1
Background MicroRNAs play important roles in the pathogenesis of human diseases by regulating target gene expression in specifc cells or tissues. Previously, we identifed microRNA 452 (MIR452), which was specifcally up-regulated in early stage human colorectal cancer (CRC) tissue. Objective The current study aims to identify and verify the target genes of MIR452 associated with CRC. Methods A luciferase reporter system was used to confrm the efect of MIR452 on ASB8, NOL8, and CDR2 expression. The expression levels of MIR452 and the target genes were evaluated by quantitative RT-PCR (qRT-PCR) and western blotting. Results We verifed the association between MIR452 and three genes, ASB8, NOL8, and CDR2, and showed that their transcripts were down-regulated by MIR452. Up-regulated MIR452 also down-regulated ASB8, NOL8, and CDR2 mRNA and protein levels in CRC cells. CDR2 protein expression was decreased in CRC tissues compared to adjacent non-tumor tissues. Conclusions These results suggest that ASB8, NOL8, and CDR2 were target genes of MIR452 in CRC cells and that upregulated MIR452 in CRC tissue regulated ASB8, NOL8, and CDR2 expression during colorectal carcinogenesis.
모양우,유영태,나기대,김지환 한국공작기계학회 2004 한국생산제조학회지 Vol.13 No.6
Design for quite operation of fluid power system requires the understanding of noise and vibration characteristics of the system. This paper presents a dynamic response of design of hydraulic circuit. Experimental investigations on the attenuation of pressure ripple in automotive power steering hydraulic pipe line is examined. Also, a mathematical model of hydraulic pipe is proposed to support a design of the hydraulic circuit. and the impedance characteristics of pressure ripple is analyzed. It is experimentally shown that power steering hydraulic pipe attenuates pressure ripple with high frequency.
모양우,나기대,유영태,김지환 朝鮮大學校 機械技術硏究所 2003 機械技術硏究 Vol.6 No.2
In the present study, the performance characteristics and the number of stall cell during rotating stall of a centrifugal air compressor were experimentally investigated. Rotating stall in the vaneless diffuser were investigated by measuring unsteady pressure fluctuations at several different diffuser radius using a high frequency pressure transducer. The number of stall cell and their rotational speeds are distinctive features of the rotating stall phenomenon. The present study is mainly forced on the analysis for the stall cell number and its propagation speed unstable operating region of the compressor. The interpretation method of visualization is based on the pressure distribution in the circumference pressure fields while plotting the pressure and its harmonics variations in time in polar coordinates. To obtain the visualize the existence rotating stall, auto-correlation function and the frequency spectra of the pressure fluctuations were measured at rh-2 = 1.52. When the flow coefficient is lower than 0.150, the static pressure at impeller inlet is higher than that at inlet duct of the Compressor. And the flow coefficient is lower than 0.086, several stall cell groups of discrete frequencies are observed.
윤지태,양광모,강경식 明知大學校 産業技術硏究所 2002 産業技術硏究所論文集 Vol.21 No.-
With the help of the Internet, communication with customers and the frequency and speed of the problem solving has improved greatly. At this point mayor enterprises are paying much attention to CRM and their related markets are expanding rapidly I'll give a brief introduction to the CRM system and go into the problems that should be considered and which phase to emphasize when building this system.
이지운,김성배,김상모,이창남,김상섭 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)
Composite action can be achieved by providing shear connectors between steel top flange and concrete topping. Composite sections have larger stiffness than the summation of the individual stiffness of slab and beam, therefore, can carry larger load or similar loads with appreciably smaller deflection and are less prone to transient vibration. T-type Steel Composite beam(TSC-beam) is developed and tested. The test results of TSC beam are compared with the theoretical results based on composite actions.
정지문,김기모,최성 호서대학교 반도체제조장비국산화연구센터 2000 학술대회 자료집 Vol.2000 No.1
지리 정보 시스템은 컴퓨터 능력의 향상으로 제한된 분양에서 일반적인 분야의 업무에 확대 적용되고 있다. 그 예로는 우편경로 최적화 시스템, 차량항법 시스템 등이 있다. 본 논문에서 이러한 분야에서 꼭 필요한 최단 경로 생성 알고리즘에 대해 다양하게 다루어 볼 것이다. 또한 기존에 발표된 최단 경로 생성 알고리즘에 대하여 비교 및 분석하고, 추후 연구 방법을 제시하고자 한다.