• Journal of the Korean Society of Industry Convergence
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• v.26 no.4_2
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• pp.571-576
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• 2023

In this study, the harmless crack size(a_hml) according to the residual stress depth was evaluated using the fatigue limit of SCM440 steel by quenching-tempering(QT) and induction hardening(IH), and threshold stress intensity factor of QT steel. Because the residual stress increased rapidly as the crack depth increased, a_hml was determined at the depth of all the crack aspect ratio(As) regardless of Type I-III, and a_hml also increased according to the residual stress depth. a_hml was minimal at As=1.0 and maximal at As=0.1, but was almost similar on each Type. a_hml was small the dependence on As.

• Knowledge Management Research
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• v.21 no.4
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• pp.59-88
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• 2020

This study is to examine the influence of Asian countries on the economic field, and to explain the characteristics and purposes of China's Belt and Road Initiative using data analysis. The purpose of this study is to identify and analyze the influence and characteristics of China's One-to-One Road Initiative on the economic sector by examining trade and investment in Asian countries adjacent to China. In particular, the One-to-One Road initiative is proceeding in a way that connects China and neighboring countries. It is to understand the dependence of the Asian countries in China on the Chinese economy. In addition, it is intended to derive implications by grasping and evaluating what the level is based on data. This study also attempts to grasp the influence and ripple effects of the one-on-one strategy on the Chinese economy and the North Korean economy, where dependence is deepening. Recently, the strategy for Asian countries through a one-to-one initiative in China has been restructured in the framework of the construction of the "21st century Maritime Silk Road" and emphasizes the cooperation mechanism led by the country. In progress of the one Belt and One Road, Chinese ICT companies are remarkable. This study looked at the influence of China's digital one Belt and One Road on Asian countries.

• Journal of Korean Philosophical Society
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• v.123
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• pp.347-377
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• 2012

We have numerous terms representing mind. We can understand them largely as the relationship of 'Discernible Mind' and 'Indiscernible Mind.' Because, our understanding mind is formed by linguistic discernment. When any discernment arise from our mind, we recognize the mind shown by discernment[Discernible Mind]. At the same time, we can think orignal mind[Indiscernible Mind] outside that discernment. Buddhism, generally, has understood mind in the relation with everything. That is to say, they have understood it from the perspective of dependent co-arising. In the early Buddhism and the abhidharma Buddhism, approaches to mind were mainly made by the discerning method. They explained arising and vanishing of 'Discernible Mind' by the law of dependent arising. Co-arisen 'Discernible Mind' is impermanent and temporary. But they never be denied on 'Discernible Mind' as an vainness. In $Mah{\bar{a}}y{\bar{a}}na$ Buddhism, $N{\bar{a}}garjuna$ understood the essence of dependent arising as the ${\acute{s}}{\bar{u}}nyata$ (emptiness) and the law of dependent arising as simultaneous dependence, not gradual dependences. $N{\bar{a}}garjuna$ criticized on vainness of Discernible Mind through ${\acute{s}}{\bar{u}}nyata$, and made possible to directly perceive Indiscernible Mind, before Discernment. Undiscriminating Mind can not be explained for being stayed beyond the state linguistic discernment(false discrimination), however, had been approached from various other names to potential consciousness or original nature. While ${\acute{s}}{\bar{u}}nata$ thought focused on criticizing vainness of discernment, Hwaeum thought suggested aspect of Indiscernible mind from the aspect of $ekay{\bar{a}}na$ dependant co-arising that everything has been co-arisen, the truth of discrimination. Furthermore, it opened the path to affirm the both indiscernible mind and discernible mind by illuminating that everything is manifestation of original nature itself, i.e. nature-arising. Hwaeum thought focused on perfect understanding by explicating the relation both indiscernible mind and discernible mind from the view point of non-abiding, rather than clarifying 'Discernible Mind' and 'Indiscernible Mind', itself. That is to say, from the aspect of dependant co-arising, Hwaeum thought plays a role that enters the indiscernible world from discernible world, and also, another role, from the aspect of nature-arising that is manifesting discernible world from indiscernible world. These aspects are important for righteous understanding on mind, and also simultaneously, very effective for healing disease of obsession, a kind of metal disease.

• Korean Journal of Community Nutrition
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• v.5 no.1
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• pp.83-91
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• 2000

The aims of this study are to evaluate the quality of hospital food services and the evaluate the quality in selected hospitals trough the use of the questionnaires. A survey of 30 hospital food and nutrition service department was undertaken and detailed information was collected from each, including, surveys of 1, 016 patient. Statistical data analysis was completed using the SAS/win 6.11 package for descriptive analysis, t-test X$^2$-test ANOVA principal component analysis , and cluster analysis and cluster analysis. In the case of patient satisfaction with hospital food and food services, overall satisfaction scores of male and female were 3.54 and 3.45 showing higher levels than the average score(3.00) The aspect of the food and food service which received the lowest ratings by patients was 'meal rounding while dining'. After conduction of factor analysis of variables affecting the patients meal satisfaction 3 groups including the 'menu satisfaction factor', 'service satisfaction factor ' and 'nutrition management satisfaction factor ' were selected. 3 clusters were categorized by the 'service cluster' 'nutrition management cluster', 'men cluster', and 'menu nutrition service cluster' after conducting a cluster analysis with influencing variables affecting patients meal satisfaction. The overview results of patient satisfaction by cluster were : in the case of the service group, such factors as taste, portion size, dealing with complaints while dining meal rounding while dining should be managed with caution In case of the nutrition management group, such factors as taste, portion size, temperature of the food intake, and dependence on hospital food should be managed with care, In the case of the menu groups, such factors as punctuality of meal times, contaminated substances in meals and serving mistakes, cleanliness of dishes, kindness of the server meal rounding while dining should by particularly managed with importance.

• Wind and Structures
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• v.30 no.5
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• pp.525-532
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• 2020

This work numerically investigates the effects of Reynolds number Re_D (= 100 - 150), cross-sectional aspect ratio AR = ( 0.25 -1.0), and attack angle α (= 0° - 90°) on the forces, Strouhal number, and wake of an elliptical cylinder, where Re_D is based on the freestream velocity and cylinder cross-section height normal to the freestream flow, AR is the ratio of the minor axis to the major axis of the elliptical cylinder, and α is the angle between the cylinder major axis and the incoming flow. At Re_D = 100, two distinct wake structures are identified, namely 'Steady wake' (pattern I) and 'Karman wake followed by a steady wake (pattern II)' when AR and α are varied in the ranges specified. When Re_D is increased to 150, an additional wake pattern, 'Karman wake followed by secondary wake (pattern III)' materializes. Pattern I is characterized by two steady bubbles forming behind the cylinder. Pattern II features Karman vortex street immediately behind the cylinder, with the vortex street transmuting to two steady shear layers downstream. Inflection angle α_i = 32°, 37.5° and 45° are identified for AR = 0.25, 0.5 and 0.75, respectively, where the wake asymmetry is the greatest. The α_i effectively distinguishes the dependence on α and AR of force and vortex shedding frequency at either Re_D. In Pattern III, the Karman street forming behind the cylinder is modified to a secondary vortex street. At a given AR and α, Re_D = 150 renders higher fluctuating lift and Strouhal number than Re_D = 100.

• 전자공학회논문지 IE
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• v.48 no.4
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• pp.61-68
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• 2011

As business management has a high level of dependence on Informational Technology (IT), protecting assets of a company from disaster is one of the most important thing that IT operating managers should consider. Because data or information is a major source of operation of the company, data security is the first priority as an aspect of continuity of business management. Therefore, this paper will realize disaster recovery system, which is suspended because of disaster, based on cloud computing system. Realized High Available Replicate System applied a method of multi thread target database to improve Replicate performance, and real time synchronize technology can improve efficiency of network. From Active to Active operation, it maximizes use of backup system, and it has a effect to disperse load of source database system. Also, High Available Replicate System realized consistency verification mechanism and monitoring technique. For Performance evaluation, High Available Replicate System used multi thread method, which shows more than threefold of replicate performance than single thread method.

• Journal of The Korean Association of Information Education
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• v.14 no.4
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• pp.627-635
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• 2010

This study analysed the programming attitude and degree of achievement as the 6 types of learning styles which is suggested by Grasha and Reichmann(1974) after a performance of the programming education using the Diki-3000 which is the teaching tools of the specific manipulative activities, in order to prepare the programming education method according to the characteristics of elementary school learners. As the result of the study, the programming attitude according to the 6 types of the learning styles has indicated more positiveness in the independence type than in the dependence type, in the competition type than in the cooperation type, in the participation type than in the avoidance type. In the side of the degree of the achievement, the independent, competition, and participation types indicated more positive than the other types. Also, as the result of an structured interview with learners, which was conducted for deep understanding, there was an understanding of differences of requests to the programming learning classified by the learning styles, and suggestion of a plan for improvement of the Diki-3000 programming in the aspect of an educational environment, teaching tools, teaching contents, and teaching methods in this study.

• Journal of Korean Society for Geospatial Information Science
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• v.5 no.2 s.10
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• pp.121-130
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• 1997

The aim of this study is to forcast the economic impact of Yosu-Kwangyang harbour on the regional employment. Industries in relation to this harbor can be divided into three parts; related industries to harbor(RI), direct dependent industries on harbor(DDI), indirect dependent industries(IDI). Research regions are 4 cities (Yosu, Yochun, Soonchun, Dongkwangyang) and 3 counties (Yochun, Seungju, Kwangyang).In the aspect of employment, the Yosu-Kwangyang harbor produced a good effect in these regions. In 1995, the rates of the dependence on harbor were showed up RI 1.63%, DBI 3.33%, IDI 15.99%, TOTAL 19.95%. In the Suture, the rates may be showed up various results as; in TOTAL rates, 33.59% in 2000, 44.95% in 2005, 48.03% in 2010, 49.82% in 2015.

• International Commerce and Information Review
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• v.10 no.2
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• pp.89-114
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• 2008

It is said that global business education in Korea must be a kind of good investment on the future of Korea, because Korea's degree of dependence upon global trade is very high. But, despite great significance of trade in economic aspect, education system on global business in Korea still remains in old paradigm focused mainly on trade in goods. The purpose of this paper is to analyse key environment of trade in Korea relating to global business education system, and to suggest some trade-friendly measures to improve the global economic environment being worse. Methodology used in this study depends on descriptive analysis by literature study. As all the paradigm of global business has shifted from 20C's trade environment to that of 21C's and still more borderless trend has progressed, it is high time Korea to design the new education system of global business to conform with the trade mode of Korea, and to execute the mode of strategic trade which is new conception of trade strategy derived from Web 2.0 trend. Major findings of this study can be summarized as follows : It is suggested that Korea should convert basic composition of trade strategy to strategic trade irrespective of company size, nationality, public or private sector, etc., and launch new instructional model considering the trade 2.0 concepts. Also, Korea's trade policies which have been based on 'trade in goods' should be changed to the frame of strategic trade so that can include various trade process such as trade in services, trade in technology, cultural contents, global investment(TRIMs), TRIPS, etc.

• Tribology and Lubricants
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• v.33 no.1
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• pp.1-8
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• 2017

Drag torque reduction in a wet clutch pack is a key aspect of the design process of the dual clutch transmission (DCT) system. In order to reduce the drag torque caused by lubricant shear resistance, recently developed wet clutch pack systems of DCT, as well as automatic transmission and other four-wheel drive (4WD) couplings, frequently utilize wavy wet clutch pads. Therefore, wavy shape of friction pad are made on the groove patterns like waffle pattern for the reduction of drag torque. Additionally, the groove patterns are designed with larger channels at several locations on the friction pad to facilitate faster outflow of lubricant. However, channel performance is a function of the waviness of the friction pad at the location of the particular channel. This is because the discharge sectional area varies according to the waviness amplitude at the location of the particular channel. The higher location of the additional channel on the friction pad results in a larger cross-sectional area, which allows for a larger flow discharge rate. This results in reduction of the drag torque caused by the shear resistance of DCTF, because of marginal volume fraction of fluid (VOF) in the space between the friction pad and separator. This study computes the VOF in the space between the friction pad and separator, the hydrodynamic pressure developed, and the shear resistance of friction torque, by using CFD software (FLUENT). In addition, the study investigates the dependence of these parameters on the location and waviness amplitude of the channel pattern on the friction pad. The paper presents design guidelines on the proper location of high waviness amplitude on wavy friction pads.