• Convergence Security Journal
• /
• v.15 no.6_2
• /
• pp.79-87
• /
• 2015

In order to clearly recognize illegality of insurance crime, declaring the provisions on insurance crime is preferable. An insurance fraud differentiated from Configuration Requirements of general fraud should be established And differentiation in accordance with the act type of insurance crime the degree of organizational involvement is required. Also the introduction of civil sanctions and creation of additional punishment provision about Organized insurance fraud are required. To notice duplicate insurance when sign up life insurance, the revision of the provisions is required. To limit unnecessary long-term hospitalization, hospitalization standard is required. Introduction of private investigator is required as a method for endowing with investigation to the staff of insurance companies. By providing information sharing laws between relevant agencies including insurance companies and law enforcement agencies, the foundation of information database, and the introduction of SNA Techniques in the IFAS,, you can detect Organized collusion crime.

• Coupled systems mechanics
• /
• v.6 no.3
• /
• pp.287-316
• /
• 2017

This paper studies the particularities of the forced vibration of the hydro-elastic system consisting of a moving elastic plate, compressible viscous fluid and rigid wall. This study is made by employing the discrete-analytical solution method proposed in the paper by the authors (Akbarov and Panakhli (2015)). It is assumed that in the initial state the fluid flow is caused by the axial movement of the plate and the additional lineally-located time-harmonic forces act on the plate and these forces cause additional flow field in the fluid and a stress-strain state in the plate. The stress-strain state in the plate is described by utilizing the exact equations and relations of the linear elastodynamics. However, the additional fluid flow field is described with linearized Navier-Stokes equations for a compressible viscous fluid. Numerical results related to the influence of the problem parameters on the frequency response of the normal stress acting on the plate fluid interface plane and fluid flow velocity on this plane are presented and discussed. In this discussion, attention is focused on the influence of the initial plate axial moving velocity on these responses. At the same, it is established that as a result of the plate moving a resonance type of phenomenon can take place under forced vibration of the system. Moreover, numerical results regarding the influence of the fluid compressibility on these responses are also presented and discussed.

• Advances in concrete construction
• /
• v.9 no.4
• /
• pp.387-395
• /
• 2020

This study has been carried out in two-phases to develop Fiber Reinforced Self-Compacting Concrete (FRSCC) performance. In the first phase, the composition of the quaternary composite binder compromised CEM I 42.5N (58-70%), Rice Husk Ash (25-37%), quartz sand (2.5-7.5%) and limestone crushing waste (2.5-7.5%) were optimized. And in the second phase, the effect of two fiber types (steel brass-plated and basalt) was investigated on the SCC optimized with the optimum CB as disperse reinforcement at 6 different ratios of 1, 1.2, 1.4, 1.6, 1.8, and 2.0% by weight of mix for each type. In this study, the theoretical principles of the synthesis of self-compacting dispersion-reinforced concrete have been developed which consists of optimizing structure-formation processes through the use of a mineral modifier, together with ground crushed cement in a vario-planetary mill to a specific surface area of 550 m2 / kg. The amorphous silica in the modifier composition intensifies the binding of calcium hydroxide formed during the hydration of C3S, helps reduce the basicity of the cement-composite, while reducing the growth of portlandite crystals. Limestone particles contribute to the formation of calcium hydrocarbonate and, together with fine ground quartz sand; act as microfiller, clogging the pores of the cement. Furthermore, the results revealed that the effect of fiber addition improves the mechanical properties of FRSCC. It was found that the steel fiber performed better than basalt fiber on tensile strength and modulus of elasticity; however, both fibers have the same performance on the first crack strength and sample destruction of FRSCC. It also illustrates that there will be an optimum percentage of fiber addition.

• International Journal of Highway Engineering
• /
• v.19 no.6
• /
• pp.191-199
• /
• 2017

PURPOSES : The objective of this study is to develop a methodology to estimate the minimum required separation distance (MRSD) between a vehicle and a bicycle when overtaking. METHODS : Three steps have been conducted to develop a methodology to estimate MSRD. First, a literature review has been conducted on the measurement of MSRD, and how it may be applied in Korea. Second, two assumptions have been made to develop a methodology to estimate the MSRD. The first assumption is that the maximum separation distance between a vehicle and a bicycle can be observed when they are at the same location longitudinally. In addition, it is assumed that the separation distance is invalid when the contra-flow exists. Finally, three cameras were installed at a height of 10 m to record the vehicle-bicycle interaction. Moreover, the vehicle trajectories as well as the separation distance were coded and analyzed. Through the hypothesis test and the interval estimation, the sample mean was tested and the confidence interval was estimated. RESULTS : 141 records of separation distance data were collected, and the hypothesis test demonstrated that the MSRD in Korea is significantly higher than other countries. In addition, the confidence interval of the population mean of MSRD is from 1.51 m to 1.65 m with 95% level of confidence. CONCLUSIONS : It is expected that the proposed methodology to estimate MSRD would be beneficial in studying road safety of vehicles and bicycles. Also, the proposed MSRD is expected to be designated in the act of road and transportation.

• Journal of Korea Water Resources Association
• /
• v.41 no.2
• /
• pp.137-147
• /
• 2008

Critical and allowable shear stress acting on the mattress revetment, is presented in this study. First of all, shear stress at each spot is computed when the hydraulic power act on the waterway. Secondly, median diameter of the filling rocks is computed using shear stress and Shields coefficient which are used to decide the critical motion of the particle. Finally, the range of critical and allowable shear stress is estimated which meet the particle stability and indicated that the mattress is a stable hydraulic structure in comparison with the riprap. Therefore the required median diameter of riprap is three times higher than that of mattress. Contrarily, this study also analyzed that resisting power of mattress to shear stress is three times higher than that of riprap on the same size.

• Journal of Korean Society for Geospatial Information Science
• /
• v.23 no.2
• /
• pp.79-88
• /
• 2015

In any production and construction of geospatial information covering surveying, survey control point is a vital geospatial information. Survey control points in South Korea are currently classified as following: national control points, public control points, and cadastral control points. Each of these different categories of survey control points act as a basis and sets perimeters for the production, management and operation of subjects within the category. Universal standard, the unified format between different survey control points, also, are not yet defined, causing difference in basic information provided by altering categories and disturbance in connecting, managing, utilizing and operating survey control points. Establishment of a standard regarding survey control points, is therefore required for the efficacy of their utilization. This study, to solve such inadequacies, selects management items for creation of standardized survey control point, by investigating domestically and internationally the status of operating survey control points, determining data model for management, establishing TTA and agency standards, and establishing of activation methodology for survey control point standards.

• The Journal of Advanced Prosthodontics
• /
• v.8 no.6
• /
• pp.479-488
• /
• 2016

PURPOSE. The aim of this study was to test the modulus of elasticity (E) across the interfaces of yttria stabilized zirconia (YTZP) / veneer multilayers using nanoindentation. MATERIALS AND METHODS. YTZP core material (KaVo-Everest, Germany) specimens were either coated with a liner (IPS e.max ZirLiner, Ivoclar-Vivadent) (Type-1) or left as-sintered (Type-2) and subsequently veneered with a pressable glass-ceramic (IPS e.max ZirPress, Ivoclar-Vivadent). A $5{\mu}m$ (nominal tip diameter) spherical indenter was used with a UMIS CSIRO 2000 (ASI, Canberra, Australia) nanoindenter system to test E across the exposed and polished interfaces of both specimen types. The multiple point load - partial unload method was used for E determination. All materials used were characterized using Scanning Electron Microscopy (SEM) and X - ray powder diffraction (XRD). E mappings of the areas tested were produced from the nanoindentation data. RESULTS. A significantly (P<.05) lower E value between Type-1 and Type-2 specimens at a distance of $40{\mu}m$ in the veneer material was associated with the liner. XRD and SEM characterization of the zirconia sample showed a fine grained bulk tetragonal phase. IPS e-max ZirPress and IPS e-max ZirLiner materials were characterized as amorphous. CONCLUSION. The liner between the YTZP core and the heat pressed veneer may act as a weak link in this dental multilayer due to its significantly (P<.05) lower E. The present study has shown nanoindentation using spherical indentation and the multiple point load - partial unload method to be reliable predictors of E and useful evaluation tools for layered dental ceramic interfaces.

• Journal of the Korean Society for Railway
• /
• v.11 no.3
• /
• pp.342-348
• /
• 2008

This paper defines the Safety Management System (SMS) based on the rail safety act and surveys the status of the English rail SMS and International Civil Aviation Organization (ICAO) SMS and OHSAS18001 SMS. Through the analysis of the domestic rail operators' safety management regulations and the results of the universal rail safety audit, the status and problems of domestic rail operators' SMS are investigated and the improvement scheme are derived. First, to establish the continual improvement system for SMS, the instruction which describe the detailed continual improvement method for each steps of SMS including management review by CEO shall be established. Second, to settle the risk management based SMS, converting the rail operators mind and establishing the supply system of safety risk operating model and basic data for the risk analysis and safety evaluation and including the precise requirement for the risk management in the related instruction should be conducted.

• The Journal of the Korea Contents Association
• /
• v.19 no.12
• /
• pp.38-56
• /
• 2019

Climate change is tough global issue with human being to tackle in cooperative manners, because climate change affects globally and has long-term detrimental impacts. To get a clue to this intricate problem, vertical governance (global, regional, national, and local) with horizontal governance should be well orchestrated. In this research, we analyzed about 24,000 articles in Korean daily newspapers from 1990 to 2018 to find out vertical and horizontal governance characters of Korean climate change. The result showed that Korean government followed the global issues but lacks relations with neighbor countries. and found a little actions in local government. In horizontal governance aspect, Korean government approached the climate change as a tool for economic development and lead the issues without communication with other two player which are market and civil society. We proposed to use market mechanism to facilitate the participation and Climate Change Framework Act to setup the mechanism for cooperation.

• Journal of Arbitration Studies
• /
• v.18 no.1
• /
• pp.31-47
• /
• 2008

An arbitrator's duty shall be independence and impartiality such as a judge who has procedurally absolute position. Independence is the freedom from others, impartiality is the status of having no-partial condition. Although these show relevance between independence and impartiality, in actuality, it is not easy to prove them. Therefore, arbitrator has to prove his or her position by opening the public of reality and by having an obligation of notification. Each country which applies Arbitration rules or Arbitration act stays the same as Korean Commercial Arbitration Board does. Hence, each country has the moral principles in order to establish a standard of judgement for essential factors and requests preferentially the impartiality and the publicity. In reality, court of justice in England excludes arbitrator who has the close relation to a person concerned. Justice in France cancelled an authorization of arbitrator because of having the economic interest to the person concerned. And also, In United States, Federal Court reverses an arbitration judgment without giving any partiality to a person concerned because of not opening a public about the relationship between arbitrator and a person concerned. Therefore, decision basis of the independence and the impartiality is standardized by the economic interest of a person concerned, professional relation, society connection, relationship between arbitrator and arbitration representative in the same case while in process of arbitration, arbitrator's nationality If arbitrator does not keep the independence and the impartiality by a position of judge, he or she has to make responsible. this duty is divided by two things: civil case and crime case. and if arbitrator does break this responsibility, he or she will get the cancellation of judge and compensation of damage. However, Korea is placed in the real circumstance without judge precedent and moral principles including the independence and impartiality. In order to getting the good reputation of international arbitration institution, this country will have to enact principles of the independence and impartiality for arbitrator.