• Bulletin of the Korean Mathematical Society
• /
• v.53 no.6
• /
• pp.1613-1615
• /
• 2016

It is proved that $k[X_1,{\ldots},X_v ]$ localized at the ideal ($X_1,{\ldots},X_v$ ), where k is a field and $X_1,{\ldots},X_v$ indeterminates, is not weakly quasi-complete for $v{\geq}2$, thus proving a conjecture of D. D. Anderson and solving a problem from "Open Problems in Commutative Ring Theory" by Cahen, Fontana, Frisch, and Glaz.

• Journal of the Korean Mathematical Society
• /
• v.40 no.4
• /
• pp.667-680
• /
• 2003

The mirror conjecture means originally the deep relation between complex and symplectic geometry in Calabi-Yau manifolds. Recently, this conjecture is posed beyond Calabi-Yau, and even to, open manifolds (e.g. $A_{n}$ singularities and its resolution) is discussed. While if we treat open manifolds, we can't avoid the boundary (in our case, CR manifolds). Therefore we pose the more precise conjecture (mirror symmetry with boundaries). Namely, in mirror symmetry, for boundaries, what kind of structure should correspond\ulcorner For this problem, the $A_{n}$ case is studied.

• Journal of Korean Institute of Industrial Engineers
• /
• v.13 no.2
• /
• pp.87-95
• /
• 1987

This article deals with the expected travel distances under Closest Open Location rule. In this paper it is shown that uniform distribution assumption over a rack, which is usually used when modeling randomized storage, is not valid under COL rule, where arrival loads follow Poisson process and duration times are independent of each other and have finite mean. We give both exact and approximate methods for the expected travel distances. Warehouse sizing problem is also included.

• International Journal of Advanced Culture Technology
• /
• v.8 no.2
• /
• pp.297-304
• /
• 2020

Recently, open source automatic machine learning solutions have been applied in many fields. To apply open source automated machine learning to real world problems, you need to write code with expertise in machine learning. Writing code without machine learning knowledge is challenging. To solve this problem, the automatic machine learning solutions provided by startups are made easy to use with a clean user interface. In this paper, we review automatic machine learning solutions of startups.

• Journal of Magnetics
• /
• v.4 no.3
• /
• pp.98-101
• /
• 1999

In this work we htave constructed an under water sonar transducer using Terfenol-D rod employing open magnetic circuit. Normally Sonar transducer using Terfenol-D was designed under closed magnetic flux return path, and permanent magnet for dc bias marnetic field, but high magnetic field should be applied to the transducer coil for high sound power and it brings temperature increase inside of the transducer. To improve this heat dissipation problem, we have designed an open magnetic circuit type transducer and we can get 200 dB (re. 1 Pa @ 1m) sound power for the input power of 650 VA.

• Journal of the Korean Professional Engineers Association
• /
• v.45 no.6
• /
• pp.44-51
• /
• 2012

Local functional, closed the hood and exhaust are classified as open-style hood. Around the closed hood contaminants prevent the spread of contaminants. Surrounded Some pollutants (open-style hood is used in cases where the odor, vapor diffusion, and inferior) of indoor allowed to Hood expressions, which are used for kitchen, laboratory, factory canopy is typical. Contamination that occurs during cooking, kitchen ventilation barrier materials are the biggest problem, its solution by introducing fresh outside air in the kitchen troubleshoot and. Study on the kitchen exhaust airflow for my kitchen, and perform a number of each Institute and at the University of hydrodynamic analysis is investigated.

• Proceedings of the Korea Contents Association Conference
• /
• 2014.06a
• /
• pp.19-20
• /
• 2014

• 한국전산유체공학회:학술대회논문집
• /
• 2006.05a
• /
• pp.346-349
• /
• 2006

• 한국전산유체공학회:학술대회논문집
• /
• 2006.05a
• /
• pp.217-218
• /
• 2006

• Journal of the Korean Institute of Intelligent Systems
• /
• v.6 no.2
• /
• pp.22-25
• /
• 1996

In this paper, we consider a generalized problem of Fuller's [Fuzzy Sets and System 45 pp. 299-303, 1992] open question and prove it.