• Journal of Families and Better Life
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• v.21 no.3
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• pp.101-107
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• 2003

The purpose of this study was to find out the push and pull factors of migrants from middle Asian countries to Yunhaju, Russia, and housing situations in settlements as well as housing intentions to behave. Four female Korye Saram in Cremobo settlement and Woojung village and 10 male and female elderly in ordinary residences were interviewed during April 22-25, 2003. Changes in national formal language from Russian to lout languages was played the most prominent push role, while availability of settlement and agricultural land and emotional attachment as the second hometown pulled them to migrate into Yunhaju. The housing situation in Cremobo settlement was very poor and almost settlers had already left. The rest settlers wanted to move into Woojung village. The resident in Woojung village hoped to get the formal contract to rent the dwelling and agricultural land. Family adaptations were progressed to solve the housing deficits among settlers both of Cremobo settlement and Woojung village. This research explored a part of the 140 years residential history of Korye Saram.

• ETRI Journal
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• v.19 no.4
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• pp.344-362
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• 1997

The delay which is one of the quality of service parameters is considered to be a crucial factor for the effective usage of real-time audio and video streams in interactive multimedia collaborations. Among the various causes of the delay, we focus in this paper on the local delay concerned with the schemes which handle continuous inflow of encoded data from constant or variable bit-rate audio and video encoders. We introduce two kinds of implementation approaches, pull model and push model. While the pull model periodically pumps out the incoming data from the system buffer, the push model receives events from the device drivers. From our experiments based on Windows NT 3.51, it is shown that the push model outperforms the other for both constant and variable bit-rate streams in terms of the local delay, when the system suffers reasonable loads. We interpret this experimental data with M/G/1 multiple vacation queuing theories, and show that it is consistent with the queuing theoretic interpretations.

• Proceedings of the CALSEC Conference
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• 1999.07a
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• pp.175-184
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• 1999

인터넷의 사용자 증가와 저 비용, 그리고 언제 어디서나 필요한 정보를 다양하고 상세하게 볼 수 있는 장점에 힘입어 고도성장이 거듭되고 있다. 또, 인터넷 인구가 증가와 더불어 전자적인 거래가 만들어지는 것을 전자상거래라 하며, 이러한 상거래에서 전자적으로 매매와 구입을 하게 된다. 전자상거래의 증가는 개인과 기업 모두 자신의 웹사이트와 물품을 알리기 위하여 홍보하기 시작하였다. 이런 홍보가 바로 광고이며, 광고는 사람들이 봐야 홍보 효과가 있다. 인터넷이라는 매체는 전세계라는 장소와 24 시간이라는 시간, 그리고 적은 비용으로 유지되지만 사용자의 자율에 의해 검색을 하게 되므로 웹사이트에 찾아오지 않으면 광고의 홍보 효과는 그만큼 낮을 수밖에 없다. 또한 기존 배너광고의 경우 웹사이트에 10%라는 공간만을 할당하므로 계속해서 늘어가는 광고를 점차 감당하기 어렵게 되어 가고 있다. 이밖에도 광고의 효과를 예측하기 힘들다는 점은 광고주로부터 신뢰감을 얻지 못하고 있다. 이러한 기존 풀(Pull)방식의 단점을 극복하고자 새로이 등장하게 된 것이 푸시 테크놀로지(Push Technology)이다. 푸시 테크놀로지란 정보를 밀어 보내주는 방식을 의미하며, TV처럼 방송국에서 시청자가 어쩔 수 없이 보게 해 주는 기술이다. 이렇게 TV의 장점과 인터넷의 장점을 합쳐 놓은 것이 바로 푸시 테크놀로지이다. 본 연구에서는 기존 풀(Pull)방식의 문제점 및 이를 이용한 광고의 단점을 알아보고 이로 인하여 등장하게 된 푸시(Push)방식에 대한 설명과 이를 이용한 광고기법 기술에 대해서 연구하였다.

• Asia pacific journal of information systems
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• v.8 no.3
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• pp.181-194
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• 1998

The inability of the management information systems (MIS) field to progress as a scientific discipline has been attributed to the lack of systematic research and a cumulative tradition, an identity crisis, and the poverty of scientism. While research on the status of MIS is very important in order to enhance the field as a scientific discipline, few have investigated this issue. Following Thomas Kuhn's idea of paradigm, this paper studies other fields to investigate when they progressed, when they did not, and why. After research paradigm was broken down into technology-push and demand-pull types, a model on the science life cycle was developed in an effort to explain the path how a science has progressed. A test of this model in the fields of physics and chemistry with an old historial background reveals that the scientific progress in the area of demand-pull is more desirable if this progress turns out to be in the right direction. An application of the model to the MIS field shows that the research paradigm in this field is mainly of technology-push. In order to shift this paradigm toward the demand-pull area, this paper suggests the research on the relationship among MIS subfields and the adoption of appropriate reference disciplines.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2004.11a
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• pp.229-232
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• 2004

• Journal of Korea Trade
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• v.26 no.6
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• pp.20-40
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• 2022

Purpose - In recent times, the international trade environment has been changing rapidly, centering on the online market. In the post-COVID-19 era, small and medium-sized trading companies are facing the problem of not being properly provided with overseas market research, market trend analysis, and trade-related information. Cloud-based digital trade is being sought as an alternative to solve these problems; however, there is a lack of research on the intention to switch to digital trade among small and medium-sized trading companies. Therefore, this study empirically analyzes the intention to switch to digital trade based on the migration theory, and through this, attempts to identify each factor that affects the intention to switch to digital trade. Design/methodology - In this study, in order to identify factors influencing intention to switch to digital trade and innovation resistance of small and medium-sized trading companies, through previous research on migration theory and the PPM (Push, Pull, Mooring) model, each variable was selected for the purpose of the study. Based on this, a research model was established for the factors affecting switching to digital trade of small and medium-sized trading companies and empirically analyzed. In addition, considering the differences in the innovation propensity and maturity of information infrastructure of trading companies as the recipients of innovation, this study analyzes the moderating effect of the mooring effect and seeks ways to establish specific strategies according to the degree. Findings - As a result of empirical analysis, the pull effect was found to have the greatest influence on intention to switch to digital trade. However, the pull factor was found to have an effect on user resistance, and it was confirmed that it was a factor simultaneously inducing positive and negative consumption behaviors among users. In addition, it was found that the higher the company's innovation propensity, the higher the pull effect's influence on the intention to switch, and analysis showed that the push effect had no influence. In addition, companies with high information infrastructure maturity were expected to have a relatively high level of intention to switch compared to companies with low information infrastructure maturity, and the difference between the two groups was found not to be statistically significant. Originality/value - This study is a timely study in that it demonstrated the effect on the switching to cloud-based digital trade for small and medium-sized trading companies and that the cloud system related to digital trade is in full swing. There are academic implications in that it revealed that the pull effect is an important factor in the intention to switch to cloud service. Practical implications were presented in that small and medium-sized trading companies suggested ways to increase the value of the cloud system for switching to digital trade and a way to increase the switching ratio by minimizing the mooring effect. In addition, the study argues that active institutional support from the government is needed to activate cloud service.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.10 no.6
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• pp.317-324
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• 2010

This paper analyses the performance of push-pull strategy by Multicharts' portpolio tool. This strategy decreases a risk of option sell by moving an exercise price to outward and compensates the profit by doubling contracts. This strategy also makes risk-free option sell to move inward for earning gain. This strategy basically uses several symbols. And this feature makes impossible to use a portpolio tool. However, This paper provides the method to use it with extracting intrinsic data from a symbolname. As an experiment for one month of september experiment options, it shows 1.5 million won in case of 5-displace and also shows 32 million won in case of 2.5-displace. If a Margin is enough, this strategy always earns profit, but it's difficult to be applicated in real trades because of a margin risk.

• Journal of Korean Society of Steel Construction
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• v.25 no.1
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• pp.93-102
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• 2013

This paper describes the experimental study on the structural behavior of the vertical plane connection between a reinforced concrete wall and a steel plate concrete wall under out-of-plane flexural loads. The specimen was tested under a dynamic test with the use of cyclic loads. As a result of the test, ductile failure mode of vertical bars was shown under a push load and the failure load was more than that of the nominal strength of the specimen. However, the shear failure mode of the connection was confirmed in case of a pull test and thus demonstrates a need for a shear reinforcement.

• Journal of the Korean association of regional geographers
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• v.9 no.4
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• pp.559-575
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• 2003

The purpose of this study is to systematically explain and discuss the return migration of Koreans in Central Asia to the Russian Far East. The Koreans' return migration is explained by the combination of push and pull factors inherent in the host and home countries. The structural or institutional push factors in Central Asia include the linguistic policy of a country, civil war, ethnic conflicts, while the micro ones are the Koreans' high concern of their children's education and the improvement of a socio-economic status. The macro pull factors operated in the Russian Far East are the permission to use the housing facilities and land previously controlled by military authorities and the laws of recovering the koreans' basic right and honor, while the micro ones are the networks of relatives and friends living in Central Asia and the Russian Far East. The two aspects related to the Koreans' return migration are also discussed. Firstly, the return migration of Koreans in Central Asia is interpreted as a migration of ethnic affinity. Secondly, the establishment of an autonomous district of Koreans in the Russian Far East is discussed.

• The Transactions of the Korean Institute of Power Electronics
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• v.9 no.6
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• pp.577-583
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• 2004

Optimal parameters were selected to design an inverter circuit that drives a cold cathode fluorescent lamp for LCD backlight using a piezoelectric transformer and it was verified by an experiment. In this paper, the applied inverter topologies are a push-pull type and a half-bridge type, and the dimming control methods of these drive system were used a analog control method and a burst control method each other. When change a control voltage from 2.5V to 4.5V in the analog control method, the brightness 0-100% was seen in current 1-6 mA. And, the input/output efficiency were obtained 90.3%. Also, the control performance of 1-6 mA was seen in duty ratio 5-50% in the burst control method, and the input/output efficiency of the designed inverter got 82.1%.