• IEMEK Journal of Embedded Systems and Applications
• /
• v.9 no.1
• /
• pp.25-32
• /
• 2014

In this paper, we proposed a partial-way set associative cache memory with an effective memory access time and low energy consumption. In the proposed set-associative cache memory, it is allowed to access only a 2-ways among 4-way at a time. Choosing ways to be accessed is made dynamically via the least significant two bits of the tag. The chosen 2 ways are sequentially accessed by the way selection bits that indicate the most recently referred way. Therefore, each entry in the way has an additional bit, that is, the way selection bit. In addition, instead of the 4-way LRU or FIFO algorithm, we can utilize a simple 2-way replacement policy. Simulation results show that the energy*delay product can be reduced by about 78%, 14%, 39%, and 15% compared with a 4-way set associative cache, a sequential-way cache, a way-tracking cache, and a way cache respectively.

• The Mathematical Education
• /
• v.17 no.2
• /
• pp.1-13
• /
• 1979

This study aimed at studying the sequence of the Figure Transformation Learning, inquiring relationship among these transformations and then researching whether there is the difference of the learning ability or not between by teaching them as it is independent and by teaching them as it is contains. (Hypothesis 1) It may be more effective to teach The Sequence of Transformation Learning by beginning with peculiar field, ending with general field than vice versa At the result of verification-C $R_{M}$=2.59, 0.005$R_{M}$=5.19, p<0.005-significant difference appeared. It is proved more effective to teach the Figure Transformation Learning the way it contains than the way it is independent. Synthesizing two hypothesises of the above, the conclusion is following The Figure Transformation Learning should be taught by beginning with peculiar field. ending with general field (congruent transformationlongrightarrowsimilar transformationlongrightarrowprojective transformationlongrightarrowtopological transformation). To teach it the way it contains is more effective.ive.

• Journal of Mechanical Science and Technology
• /
• v.20 no.7
• /
• pp.941-949
• /
• 2006

Nonlinear behavior analysis was used to verify whether a one-way clutch is effective for reducing the torsional vibration of a paired spur gear system under periodic excitation. The dynamic responses were studied over a wide frequency range by speed sweeping to check the nonlinear behavior using numerical integration. The gear system with a one-way clutch showed typical nonlinear behavior. The oscillating component of the dynamic transmission error was reduced over the entire frequency range compared to a system without a one-way clutch. The one-way clutch also eliminated unsteady continuous jump phenomena over multiple solution bands, and prevented double-side contact, even with very small backlash. Installing a one-way clutch on both sides of the gear system was more effective at mitigating the negative effects of external periodic excitation and various parameter changes than a conventional gear system without a one-way clutch.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
• /
• 2004.11a
• /
• pp.251-256
• /
• 2004

The image classification is one of the most important studies in the remote sensing. In general, the MLC(Maximum Likelihood Classification) classification that in consideration of distribution of training information is the most effective way but it produces a bad result when we apply it to actual hyperspectral image with the same classification technique. The purpose of this research is to reveal that which one is the most effective and suitable way of the classification algorithms iii the hyperspectral image classification. To confirm this matter, we apply the MLC classification algorithm which has distribution information and SAM(Spectral Angle Mapper), SFF(Spectral Feature Fitting) algorithm which use average information of the training class to both multispectral image and hyperspectral image. I conclude this result through quantitative and visual analysis using confusion matrix could confirm that SAM and SFF algorithm using of spectral pattern in vector domain is more effective way in the hyperspectral image classification than MLC which considered distribution.

• Transactions of the Korean Society of Mechanical Engineers A
• /
• v.35 no.11
• /
• pp.1477-1482
• /
• 2011

Using a one-way clutch has been reported to be very effective in reducing the vibration of gear pairs. However, study on the effect of using a one-way clutch has been based on numerical analysis only, and no experimental study has yet been executed. Hence, in this study, experiments to verify the effectiveness of using a one-way clutch to reduce the torsional vibration have been executed. Dynamic responses over a wide range of speeds have been compared for various numbers and positions of the clutch. The results of the experiments verified that a one-way clutch is effective in reducing the vibration by decreasing the tooth mesh vibration as well as the vibration transmitted from the input shaft.

• Journal of the Korean Society for Library and Information Science
• /
• v.40 no.2
• /
• pp.457-480
• /
• 2006

It is essential to conduct an analysis of superior journals, facilitate the international distribution of domestic journals, and determine an effective way to promote a journal's international distribution. This study seeks to determine an effective approach to the international distribution of Korean medical and life science journals and investigates the bibliographies, home pages, and databases about four international distribution factors with regard to 90 journals arranged into three categories. For the effective way of distributing domestic journals internationally, we should develope Korean journals with international standards, record the journals' articles in international and domestic databases, raise the rate of international subscription and holding journals. and publish electronic journals linking their electronic files with many databases.

• Structural Engineering and Mechanics
• /
• v.67 no.2
• /
• pp.155-163
• /
• 2018

The Early-age construction loading and changing properties of concrete, especially in the multi-story structures can affect the slab deflection, significantly. Based on previously conducted experiment on eight simply-supported one-way slabs this paper investigates the effect of concrete type, fiber type and content, loading value, cracking moment, ultimate moment and applied moment on the instantaneous deflection of Self-Compacting Concrete (SCC) slabs. Two distinct loading levels equal to 30% and 40% of the ultimate capacity of the slab section were applied on the slabs at the age of 14 days. A wide range of the existing models of the effective moment of inertia which are mainly developed for conventional concrete elements, were investigated. Comparison of the experimental deflection values with predictions of the existing models shows considerable differences between the recorded and estimated instantaneous deflection of SCC slabs. Calculated elastic deflection of slabs at the ages of 14 and 28 days were also compared with the experimental deflection of slabs. Based on sensitivity analysis of the effective parameters, a new model is proposed and verified to predict the effective moment of inertia in SCC slabs with and without fiber reinforcing under two different loading levels at the age of 14 days.

• Education of Primary School Mathematics
• /
• v.5 no.1
• /
• pp.57-69
• /
• 2001

A new initiative in the 7th curriculum of mathematics is the inclusion of spatial sense in geometry. The purpose of this study is threefold: a) to identify the concepts of spatial sense; b) to systematize the contents of spatial sense by analysis the curricular and texbooks; and c) to explore an effective way of teaching-leaning of spatial sense.

• Proceedings of the KSR Conference
• /
• 2004.10a
• /
• pp.1496-1501
• /
• 2004

Recently, many Korean firms have been adopting 360$^{circ}$ Degree Feedback System with the environmental change in business world. The reason is that the traditional top-down way of personnel evaluation pattern can not but has many limits in this turbulent changing environment. The main purpose of this article is to depict some aspects of 360$^{circ}$ Degree Feedback System including its current status quo, its positive and negative side, and the effective way of its improvement focusing on A firm.

• The Korean Journal of Health Service Management
• /
• v.4 no.2
• /
• pp.85-95
• /
• 2010

This study was to understand perception level and education need on hospice, and to development effective education contents of hospice for medical students. Descriptive survey research design was used. Participants were 426 and the data collecting period was from July. 22. to July. 29. in 2008. The data were analyzed using descriptive analysis, chi-square test, Wilcoxon's signed rank test. The participants experiencing in hospice education program demonstrated higher perception level and education need about hospice than non-participants. Also, The participants experiencing in hospice education showed more concerning on effective education contents of hospice than non-participants. Therefore, hospice education program must be prepared in a continual and systematic way in order to provide for effective education of medical students in Korea.