• Journal of Korean Home Economics Education Association
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• v.21 no.2
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• pp.159-169
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• 2009

After analyzing data of 797 Middle and High School students, the results show that those using cognitive reappraisal strategies adjusted better in school life than those using expressive suppression strategies in regards to application of emotional regulation strategies. In gender differences of the application, male students adjusted better when they used cognitive reappraisal strategies in relationship with their teachers and their peers. Female students, on the other hand, adjusted better in relationship with their teachers their peers, and in academics, when using cognitive reappraisal strategies. In school year differences, middle school students who used less of emotional regulation strategies in academics, friendship and student-teacher relations adjusted better in relationship with their peers.

• Proceedings of the Korean Information Science Society Conference
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• 2007.10d
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• pp.235-239
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• 2007

이동 애드 혹 망에서 노드들의 이동성은 멀티캐스트를 어렵게 한다. 많은 멀티캐스트 프로토콜에서 데이터 전달 구조 구성과 유지를 하기 위해 주기적인 플러딩이 널리 사용된다. 이런 주기적인 플러딩 메시지는 네트워크의 제어 비용을 심각하게 증가시키고, 에너지와 대역폭 자원을 낭비하게 한다. 데이터 전달구조 유지 부담을 줄이기 위해, 많은 비상태 멀티캐스트 프로토콜이 제안되었고 이 프로토콜들은 데이터패킷을 목적지로 보내기 위해 각각의 패킷 안에 목적지 주소 리스트를 적재한다. 그러나 데이터 패킷의 길이가 한정되어 있기 때문에, 목적지 주소 리스트 적재 정책은 프로토콜의 확장성을 제한한다. 이 논문에서는 이동 애드 혹 망을 위한 확장성이 있는 이동 기반 오버레이 멀티캐스트(SLAOM)라는 프로토콜을 제안한다. 이 프로토콜은 데이터 전달 구조 구성과 유지를 위한 주기적인 플러딩이 필요하지 않으며, 각각의 데이터 패킷에 목적지 주소 리스트를 적재할 필요도 없다. 시뮬레이션 결과는 우리의 프로토콜이 데이터 전송률과 제어 비용 면에서 다른 프로토콜들보다 뛰어남을 보여준다.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.13 no.8
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• pp.811-818
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• 2002

In this paper, a shorting pin and slot-loaded microstrip patch antenna is designed and fabricated. A shorting pin and slots are used for harmonic suppression on an inset fed antenna. A shorting pin and slot properties are analyzed by cavity model of the rectangular patch and the characteristics of the designed antenna are described. The designed antenna provides a gain of 7 dBi at the fundamental frequency, 5.8 GHz. In the second and third harmonic frequencies, the proposed antenna has gain suppression properties of -3.3 dB and -14.3 dB at each harmonic frequency, respectively.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2019.11a
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• pp.267-267
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• 2019

The purpose of this study is to understand the risk of chemical product, Styrene Monomer(SM), shipped in a vessel. SM is harmful chemical product which can make injury, explosion and/or fire in a vessel. The understand of SM risk is very important to protect seafarer's body and vessel safety. This research can be expected that the understanding of SM risk by a seafarer's to prevent accidents by SM explosion/fire. In this study we used event tree analysis method using chemical reaction cased by explosion. As a result, we founded various chemical reaction and visualization for explosion path.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.41 no.11
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• pp.1446-1455
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• 2016

The recent increase of fresh farm products, hazardous cargos, and high-priced goods in marine transportation has caused an increased demand of cargo owners and shipping companies with regard to the monitoring of the location and state of cargo. To meet this increase, numerous technologies are being studied for the monitoring of the cargo state. Cargo containers on a ship are loaded on a ship's deck and in a ship's hold, which is located under the deck. However, Since the developed technologies mostly transfer the container status information that collected by mobile communication, it costs a lot to install communication infrastructure on ship. And the ship's hold is completely sealed with a cover, and communication with the reader positioned at the ship's bridge is difficult. Therefore, most existing studies on container monitoring on ships have focused on the monitoring of containers loaded on a ship's deck. Accordingly, this study suggested system configuration for the monitoring of containers in a ship's hold using IP-RFID technology. The suggested system configuration was tested on an actual ship under navigation, and the test results are given in this study. The test results verified that the monitoring of containers in a ship's hold using IP-RFID technology is effective.

• Journal of Bio-Environment Control
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• v.21 no.4
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• pp.437-444
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• 2012

This study was aimed to minimized the impact force and vibration transmitted to transporting agricultural product from the power tiller trailer by installing vibration absorption device. The vibration absorbable trailer (I) mounted with leaf spring suspension and shock absorber was developed and compared on vibration absorption performance with the existing trailer (E) equipped no vibration absorption device. In order to identify the vibration absorption effect of the trailer developed in this study, the vibration accelerations, occurred during driving on paved road with loading 360 kg of pear, were measured and analyzed using FFT analyzer. The magnitude of average vibration acceleration was decreased highly for the improved trailer mounted with vibration absorption device in comparing with existing trailer in the frequency range under 60 Hz and under 80 Hz. And similar vibration absorption effect was represented for the improved trailer in all frequency range. Especially, in the frequency range between 40 Hz and 80 Hz, the magnitude of vibration acceleration for the improved trailer was decreased with 1/3 times in comparing with existing trailer. So, the transporting loss including damage of agricultural product could be decreased highly by using the improved vibration absorbable trailer mounted with leaf spring suspension and shock absorber simultaneously, designed in this study.

• Journal of Animal Environmental Science
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• v.11 no.1
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• pp.11-16
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• 2005

The round bale wrappers are generally used for rice straw after the harvesting of low land rice by combine harvester. In this situation, the bale wrappers should be well adapted under the travelling over raised borders and temporary ditches in soft soil of narrow rice fields. The study was conducted to improve the performance of bale wrapper through the new design for compact size, lowered gravity center and lowered power consumption. The prototype of round bale wrapper had been designed and assembled to tractor with three point hitch mounted. The machine type is one roll driving system with one roll for rotating and one roll for wrapping. The driving torque and work performance of the machines were measured and analysed. The torque requirement of the prototype and conventional type was 6kgf-m and 12kgf-m, respectively. The prototype shaved less friction resistance between bale driving roll and round bale. and the power requirement can also be reduced from 12kgf-m in the conventional to 6kgf-m in the prototype. The work efficiency of the new bale wrapper was $45\%$ higher than the conventional wrapper, and the working cost of the prototype can be reduced $17\%$ than that of the conventional.

• Cross-Cultural Studies
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• v.48
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• pp.135-191
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• 2017

The purpose of this study was to select words with "shared cultural charge" that are unique in French culture and to study cultural content hidden in these words. It also explores the cultural phenomenon of same French borrowed words used in the Korean language. The study was conducted from two perspectives: perspective of internal French culture defined by Galisson and inter-cultural perspective. The first section of this study introduces the theory "lexiculture" and definition of the words "shared cultural charge." In the following section, among main items of 795 borrowed words in the Korean language, we examined seven words in areas such as clothing, food, and housing. We studied content of the French culture according to the following three categories: (1) dictionary definition, (2) cultural phenomena, (3) special phenomenon in idiomatic expression. Our study illustrated a special connotation beyond the dictionary definition of words. In the next section, we examined the birth of a new cultural phenomenon and process of acquiring a new meaning in the Korean language. Finally, we analyzed differences and similarities between linguistic and cultural elements in both cultures. In this study, we provide basic data for inter-cultural education between France and Korea.

• The Korea Beekeeping Bulletin
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• s.252
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• pp.32-34
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• 2001

• Railway Journal
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• v.16 no.6
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• pp.18-24
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• 2013