• KDI Journal of Economic Policy
• /
• v.30 no.2
• /
• pp.27-59
• /
• 2008

This paper empirically investigates the finance-growth linkage in Korea by utilizing firm-level data of manufacturing industries before and after the 1997 financial crisis. We find that, first, an increase in external finance is associated with a faster subsequent capital accumulation of firms. However, this capital accumulation channel became relatively attenuated after the crisis. Second, the total factor productivity growth effect of external finance has been considerably weak both before and after the crisis. Third, the information production and industry restructuring effects of external finance have also remained weak after the crisis. The limited role of external finance in post-crisis Korea partially reflects sluggish corporate investment and weakening dependence of good credit firms on external finance. The evidence suggests that, in order to effectively sustain economic growth, further reform efforts may be required to strengthen resource allocation and corporate restructuring roles of financial markets and institutions.

• Korean Journal of Heritage: History & Science
• /
• v.46 no.1
• /
• pp.32-75
• /
• 2013

도성은 왕권이 존재하는 것뿐만 아니라 왕권을 지지하는 지배계층이 모여 거주하는 곳이다. 그리고 중앙집권적 통일지배를 실현하기 위한 정치 의례의 장으로서 전근대 동아시아 세계에 공통적으로 건설되었다. 그 기원은 중국에서 유래하며, 일본은 율령제(律令制)를 바탕으로 하는 천황제 고대국가가 실현되는 7세기 말 '藤原京(후지와라쿄)'에서 처음으로 지상에 출현한다. 7세기 말부터 거의 1세기 간 복도제(複都制)가 채택되었기에 '등원경(藤原京)' 이후 도성은 여러 곳에 건설되었고, 때로는 천도되었다. 그러나 8세기 말 '長岡京(나가오카쿄)'에서는 복도제(複都制)를 지양했고, '平安京(헤이안쿄)'에 도읍을 정한 이후, 중세 근세를 거쳐 근대에 이르기까지 헤이안쿄-교토에는 1100년에 걸쳐 왕권이 지속적으로 존재하여 지금의 '京都市'(교토시)에 이르게 된다. '등원경(藤原京)'가 고대 일본 최초의 도성이었다면, '평안경(平安京)'는 마지막 도성임과 동시에 중세 도시로 변모해 가는 전환점에 위치하고 있다. '등원경(藤原京)'이래 남북축선에 대한 선대칭 구조를 의식해 도성이 축조 되었고, '평안경(平安京)'에서는 이러한 구조가 가장 강하게 표현되었지만, 9세기 초 천황과 관인들의 의식 정무의 동선이나 좌석 배치에 있어서 동서방향이 채용되게 되었고, 이에 더해 9세기 말에는 천황의 거소가 도성의 축선에서 벗어나게 된다. 또한 10세기 중반 경 '平安宮(헤이안큐)'에서는 '內裏(다이리)'를 중심으로 한 잦은 화재가 발생해 천황은 궁외로 거소를 옮기게 되었다. 이후 천황이 궁 바깥에 거주하는 것이 일반화 되었고, '평안궁(平安宮)'는 의식을 행하는 장소로서 한정적으로 유지 수리가 될 뿐이었으나 결국에는 그것마저 어려워져 폐쇄에 이르게 된다. 한편 귀족의 저택도 7세기 이래의 남북축선에 대해서 동서의 선대칭 구조로 부터, '寢殿造(신덴즈쿠리)'라고 불리는 건물배치도 공간구성도 비대칭인 건물양식이 주류를 이루어 갔다. 이상과 같이 일본의 고대 도성의 특징을 잘 가지고 있었던 최후의 도성 '평안경(平安京)'는 남북을 축선으로 하는 선대칭 구조가 가장 뚜렷하게 나타났으나, 9세기 '평안궁(平安宮)'의 변화를 시작으로 11~12세기에 크게 변모해갔다. 이처럼 고대국가의 도성이 가지고 있었던 남북을 축으로 하는 구조를 버리고 동서방향으로 동선을 취한 움직임은 고대국가의 이념을 탈피하여 다음 시대로 전환하는 중요한 한 걸음이었다고 생각된다.

• Journal of the Korea Society for Simulation
• /
• v.29 no.4
• /
• pp.47-54
• /
• 2020

North Korea has recently developed and deployed missiles with various ranges as asymmetrical forces. Among them, short-range ballistic missiles with improved accuracy are expected to aim at achieving tactical goals by hitting important military facilities in Korea with a small number of missiles. Damage to the air force airfields, one of North Korea's main targets of missiles attack, could limit the operation of air force fighters essential to gaining air superiority. Based on the attack by the short range ballistic missiles, the damage probability of military airfields was simulated. And as the one of the concepts of passive defense, the way to reduce the loss of combat power was studied through the changes of the air force squadrons deployment. As a result, the effective deployment plan could be obtained to reduce the amount of power loss compared to the current deployment.

• The Journal of the Petrological Society of Korea
• /
• v.13 no.4
• /
• pp.179-190
• /
• 2004

Precambrian metamorphic rocks of Yeongyang-Uljin area, which is located in the eastern part of Sobaegsan Massif, Korea, are composed of Pyeonghae, Giseong, Wonnam Formations and Hada leuco granite gneisses. These show a zonal distribution of WNW-ESE trend, and are intruded by Mesozoic igneous rocks and are unconformably overlain by Mesozoic sedimentary rocks. This study clarifies the deformation history of Precambrian metamorphic rocks after the formation of gneissosity or schistosity on the basis of the geometric and kinematic features and the forming sequence of multi-deformed rock structures, and suggests that the geological structures of this area experienced at least four phases of deformation i.e. ductile shear deformation, one deformation before that, at least two deformations after that. (1) The first phase of deformation formed regional foliations and WNW-trending isoclinal folds with subhorizontal axes and steep axial planes dipping to the north. (2) The second phase of deformation occurred by dextral ductile shear deformation of top-to-the east movement, forming stretching lineations of E-W trend, S-C mylonitic structure foliations, and Z-shaped asymmetric folds. (3) The third phase deformation formed I-W trending open- or kink-type recumbent folds with subhorizontal axes and gently dipping axial planes. (4) The fourth phase deformation took place under compression of NNW-SSE direction, forming ENE-WSW trending symmetric open upright folds and asymmetric conjugate kink folds with subhorizontal axes, and conjugate faults thrusting to the both NNW and SSE with drag folds related to it. These four phases of deformation are closely connected with the orientation of regional foliation in the Yeongyang-Uljin area. 1st deformation produced regional foliation striking WNW and steeply dipping to the north, 2nd deformation locally change the strike of regional foliation into N-S direction, and 3rd and 4th deformations locally change dip-angle and dip-direction of regional foliation.

• Journal of the Korea Institute of Building Construction
• /
• v.10 no.4
• /
• pp.21-29
• /
• 2010

International construction contractors are often faced with the situation of working in an unfamiliar construction environment. Under FIDIC rules, the contractor has the right to make a claim requesting the consulting engineer for an adjustment to the contract price or the time for completion when a part or parts of the works have changed, or in the event of unforeseeable conditions. Contractors generally have more access to the costs and time implications of such a change or unforeseeable conditions than the consulting engineer or outside neutrals. Due to such an asymmetry of information, the contractor may be motivated to dispute frivolous claims of less merit, expecting erroneous judgments by the consulting engineer or the neutrals. In this paper, a claiming behavior model is presented by using game theory and experience data to study the manner in which frivolous claims develop into disputes. The model also analyzes the impacts of DAB/DRB upon the frivolous claims.

• Journal of Astronomy and Space Sciences
• /
• v.15 no.1
• /
• pp.235-244
• /
• 1998

The solutions of orbital maneuver problem using the sliding mode control in the presence of the erath gravitational perturbations is obtained. Especially, the optimization of consuming fuel for maneuver is performed. The impulsive solution to Lambert's problem using the combined equation method to minimize total ${\Delta}V is used for the desired orbit and the maneuver times. Two-step sliding mode control method is introduced for satisfying the boundary conditions of finite-thrust rendezvous problem at the end of maneuver time. Using the new approach to the orbit maneuver problem, two-step sliding mode control, orbit maneuvers are processed. The solutions to a rendezvous using the optimal control are obtained, and they are compared to the results by two-step sliding control.According to the new approach for orbit maneuver, the thrust-coast-thrust type controller is obtained to make satellite to track desired Lambert's orbit, and the total ${\Delta}V$ required for maneuver is resonable in comparison with the impulsive solution to Lambert's problem. The final state variables, also are close to the boundary conditions at the end of maneuver times.

• Journal of the Society of Naval Architects of Korea
• /
• v.34 no.4
• /
• pp.61-71
• /
• 1997

Numerical and experimental studies are carried out to analyse the resistance characteristics of a hydrofoil catamaran which is advancing on calm water with uniform speed. For the hydrofoil catamaran with modified Wigley hull which has asymmetric transverse section and transom stem, the studies are carried out for the range of Froude number 0.2 to 1.0 and the angle of attack of the hydrofoil $0.0^{\circ}$ to $3.0^{\circ}$. The model tests are carried out in the ship model basin of Inha University. Also the numerical computations using a finite difference method are performed for the simulations of fluid flow around the hull form and the results are compared with the results of the model tests. The present computation results show well quantitative agreement with the experimental results. The experimental results show that the shape and angle of attack of the foils exerts a considerable influence on the running posture and resistance performance of ship.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
• /
• v.7 no.4
• /
• pp.247-256
• /
• 2002

Distribution of surface and suspended sediments was studied to understand sedimentary processes of finegrained sediment near the cooling water intake of Pyongtaek power plant on the west coast of Korea. The grainsize of surface sediment during the winter was coarser in the opened northern area than sheltered southern area. During the summer, finer sediment was found in the east (landward) than west due under dominantly the influence of tidal current. The concentration of suspended sediments was higher in the winter than summer and in the mid- to deep waters than surface waters. Asymmetry of tidal current induced net landward transport of suspended sediments. Landward transport of suspended sediments was most significant at the beginning of flood time when water level is low. Net suspended sediment fluxes ranged from 3.4$\times$10$^{-3}$ kg.m$^{-2}$ .s$^{-1}$ to 5.7$\times$10$^{-3}$ kg.m$^{-2}$ .s$^{-1}$ This large landward transport of suspended sediments is attributable to combination of enhanced flow induced by intake of cooling water and artificial structures near the water intake.

• Journal of Korean Ophthalmic Optics Society
• /
• v.16 no.3
• /
• pp.273-281
• /
• 2011

Purpose: In order to provide the fundamental information for the design development of RGP lenses and its clinical prescription, the corneal types of Korean twenties were analyzed according to corneal shapes, astigmatic degree, and the certain distance from the corneal apex. Methods: Corneal types of total 252 eyes in 20s were firstly classified, then their corneal radii from the certain distance from the corneal apex were measured by corneal topography and further analyzed based on the astigmatic degree. Results: Korean 20s' corneal types were classified as 14.3%(36 eyes) of round, 31.3%(79 eyes) of oval, 28.6%(72 eyes) of symmetric bow tie, 17.5%(44 eyes) of asymmetric bow tie, 8.3%(21 eyes) of irregular shapes. The round and oval typed corneas had mild astigmatic degree whereas the higher astigmatic degree in symmetric and asymmetric bow tie typed corneas were shown. The relative corneal radii of round and oval typed corneas at each distance from corneal apex were shown to consistently increase regardless of astigmatic degrees when they measured at certain distances from the corneal apex. However, the relative corneal radii of symmetric and asymmetric bow tie typed corneas within 1.0-1.5mm from the corneal apex were decreased, which showed steeper slope than it within 1.0 mm and somewhat different based on astigmatic degrees. Bigger change of corneal radii outer 3.5 mm from the corneal apex in symmetric bow tie typed corneas with astigmatism of 1.50-2.00 D and 2.25-2.75 D appeared. Conclusions: The consideration of radial change from the central cornea to peripheral cornea is necessary for manufacturing RGP lens and its prescription since they showed different change in corneal radii by corneal patterns and astigmatic degrees.

• Korean Journal of Construction Engineering and Management
• /
• v.11 no.6
• /
• pp.54-64
• /
• 2010

A firm decides to go to the project based on its investment analysis. However, the cash flows generated from the real project can not be always coincident with what expected as it follows uncertain behavior and the asymmetric payoff caused by the managerial flexibilities involved in the real asset affects the project value. Amongst various managerial flexibilities entailed in most of the real assets, although investment delay has been known to enhance the project value thanks to its ability to provide new market information to management, the related research to select the time to invest have been just few. Therefore, this research aims to show the theoretical framework to decide when to invest reflecting the behaviors of increasing project value and loss recovery cost due to investment delay with option pricing, related financial economic, and variational theories.