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브렉시트가 중국에 미치는 영향 및 중국의 대응방안에 관한 연구
박석재,장연 한국무역경영학회 2021 한국무역경영연구 Vol.- No.22
Sino British relations are one of the most important bilateral relations in today's international relations. Both China and the UK are permanent members of the UN Security Council and important members of the G20 and other international political and economic organizations, and both have significant influence in the international community. On June 23, 2016, Britain held a referendum on brexit, and the brexit camp won with 51.9% of the votes. The impact of the Brexit event on China and Britain is multi-dimensional and multi-field. Due to the transitivity and continuity of brexit, brexit will affect the trade relations between China and Britain for a long time. Moreover, the UK is an important channel for China to open the EU market, so the event of the UK leaving the EU is bound to have an inevitable impact on China's economy, investment and even its influence in Europe. Therefore, this paper does not elaborate the reasons for the UK's withdrawal from the EU too much. It mainly describes the trade situation between China and the EU as well as the UK in the past 10 years from the data, so as to speculate the impact of the UK's complete withdrawal from the EU on China in the future. The impact is mainly described from two aspects: positive and negative. After that, we will look for solutions to the impacts mentioned above, so as to actively deal with the changes in trade regulations and tariffs brought to China by Brexit. The purpose is that in the short term, the trade between China and Britain will not be affected in a large scale and amount.
AC PDP에서 2차원 수치해석을 이용한 Ramp Reset 구동파형에 따른 방전 특성 분석
박석재,최훈영,서정현,이석현 대한전기학회 2004 전기학회논문지C Vol.53 No.12-C
The discharge characteristics of a ramp reset waveform in the alternating current plasma display panel(ac PDP) were studied using a 2-dimensional numerical simulaion. We analyzed the wall charge variation during the reset discharge, address discharge and sustain discharge adopting a ramp reset waveform. Then we investigated the principal parameters for a successful discharge. In this paper, we suggest a new parameter, priming particles' density and its effects on the stability of the ramp discharge. The maximum current flows of the three electrodes during the ramp reset period were decreased with the increase in the priming particles's density which was explained with the wall charge characteristics and the current flow characteristics obtained by a 2-D simulation.
밀집성 주위 MINKOWSKI 자기권의 '제트 방정식'
박석재,PARK SEOK JAE 한국천문학회 2004 天文學論叢 Vol.19 No.1
In this review article the famous 'jet equation' in a Minkowski magnetosphere around the compact objects will be fully derived for the pedagogical purposes.
시간에 따라 변하는 블랙흘 자기권의 'GRAD-SHAFRANOV 방정식'
박석재,이태형,Park, Seok-Jae,Lee, Tae-Hyeong 한국천문학회 2003 天文學論叢 Vol.18 No.1
In the earlier papers we analyzed the axisymmetric, nonstationary electrodynamics of the central black hole and a surrounding thin accretion disk in an active galactic nucleus. Based on those papers we analyze the axisymmetric, nonstationary black hole magnetosphere in this paper. We concentrate on deriving the ‘Grad-Shafranov equations’; both in the force-free and non-force-free cases. In the time-independent limit our equations naturally coincide with stationary equations as they should.
스탠드바이 信用狀의 準據法으로서의 UCP 500과 ISP98의 比較硏究
박석재 한국무역상무학회 2003 貿易商務硏究 Vol.20 No.-
A Comparative Study on UCP 500 and ISP98 as the Governing Law for Standby Letters of Credit
새로운 블랙흘 엔트로피 증가, 각운동량-에너지 추출 방정식
박석재,Park, Seok-Jae 한국천문학회 2003 天文學論叢 Vol.18 No.1
In the earlier papers we analyzed the axisymmetric, nonstationary electrodynamics of the central black hole and a surrounding thin accretion disk in an active galactic nucleus. Based on those papers we analyze the axisymmetric, nonstationary force-free black hole magnetosphere and the motion of the plasma. We concentrate on deriving the totally new equations for the entropy incrrease and the angular momentum, energy extraction of the black hole.
박석재,PARK SEOK JAE 한국천문학회 2002 天文學論叢 Vol.17 No.1
In the earlier papers we analyzed the axisymmetric, nonstationary electrodynamics of the central black hole and a surrounding thin accretion disk in an active galactic nucleus. Based on those papers we analyze the axisymmetric, nonstationary force-free black hole magnetosphere and the motion of the plasma. We concentrate on deriving the relations between the velocity components of the plasma and those of the accreting magnetic field lines. We conclude that the former are given by the sum of the latter and the magnetic field terms.
박석재,이태형,PARK SEOK JAE,LEE TAE HYEONG 한국천문학회 2002 天文學論叢 Vol.17 No.1
In this review article the famous 'jet equation' of the neutron stars and black holes will be fully derived for the pedagogical purposes.
축대칭을 만족하고 시간에 따라 변하지 않는 블랙홀 자기권의 편원 좌표계적 기술
박석재,PARK SEOK JAE,FLETCHER ANDRE B. 한국천문학회 2001 天文學論叢 Vol.16 No.1
In this paper, we simplify the equations of the Macdonald-Thome black hole magnetosphere. Our major assumption is that the 3-D electric and magnetic flux isosurfaces respectively form families of confocal oblate spheroids and hyperboloids. As a result, the magnetospheric equations are greatly simplified, and may provide a useful framework for instances when rigorous, theoretical approaches are not necessary.