• Proceedings of the Korean Society of Disaster Information Conference
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• 2022.10a
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• pp.407-411
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• 2022

공항 시설에서 통틀어 보안이 가장 취약한 곳은 Landside이다. 항공기 테러가 빈번하던 시절에는 X-ray를 비롯한 검색기술의 수준이 높지 않았던 탓에 Hijacking이나 폭발물에 의한 피해가 많았었다. 물론 기술이 발전한 현대에 와서도 Hijacking이나 항공기 폭파 같은 테러가 발생하고 있지만 9.11테러 이전보다는 훨씬 감소한 상황이다. 최근에는 보안수준이 높은 Airside 보다 상대적으로 보안이 취약한 Landside에 대한 보안 강화가 필요하다. 그 이유는 테러의 유형이 협상의 여지가 없는 최대피해와 최대공포를 주는 방식으로 변화하고 있기 때문이다. 따라서 상대적으로 부담이 덜하고 유동인구가 많은 Landside가 Soft Target이 되었다. 이런 상황에서 대한민국 공항이 어떻게 대응해야 하는지 관련된 법을 중심으로 본 연구를 진행해 보고자 한다.

• Journal of Korean Society of Disaster and Security
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• v.13 no.2
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• pp.11-25
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• 2020

This study is a basic study to improve responsiveness in the event of a disaster in the landside area of the Airport Passenger Terminal, and it investigated the airport emergency plan and the status of emergency response in the event of a disaster by the airline's ground staff. The Airport Emergency Plan examined the airport evacuation plan of Korea's Gimpo Airport and Japan's Ministry of Land, Infrastructure, and Transport, confirming that the domestic airport emergency plan was not specific. In addition, a survey of 100 airline ground employees working at check-in counters found that 69% of the respondents were unaware of their role in disaster situations, 90% were not educated in emergency response and 98% were not trained in disaster training in landside areas. Cross-analysis confirmed significant results in the safety of the airport where the service life worked and whether it was a role in the event of a disaster. Therefore, it is suggested that the airport emergency response plan should be improved to improve the ability to respond to disaster sites in the landside area of the airport passenger terminal and that the airline's ground staff should be educated and trained to enhance disaster response.

• Management Science and Financial Engineering
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• v.6 no.2
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• pp.47-67
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• 2000

It is discussed how to assign delivery tasks to automated guided vehicles (AGVs) for multiple container cranes in automated container terminals. The primary goal of dispatching AGVs is to complete all the lading and discharging operations as early as possible, and the secondary goal is to minimize the total travel distance of AGVs. It is assumed that AGVs are not dedicated to a specific container crane but shared among multiple cranes. A mathematical formulation is developed and a heuristic algorithm is suggested to obtain a near optimal solution with a reasonable amount of computational time. The single-cycle and the dual-cycle operations in both the seaside and the landside operations are analyzed. The effects of pooling AGVs for multiple container cranes on the performance of an entire AGV system are also analyze through a numerical experiment.

• Journal of Korean Society for Atmospheric Environment
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• v.16 no.E2
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• pp.97-103
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• 2000

A Thermal Internal Boundary Layer(TIBL) develops over the landside from the coast due to the surface temperature difference between the land the sea when sea breeze froms. The TIBL plays an important role in determining the pollutant concentrations where the plume emitted from a tall stack near the coast fumigates to the ground. The fumigation results in the high ground the TIBL height from the available meterological data is very important. The TIBL models avaliable in the literature were analyzed to identify the suitable model to apply in the fumigation. The TIBL heights predicted by the existing models were compared with the measurements in the water tank experiment. The results show that the TIBL models by Raynor is appropriate to predict the height of TIBL.

• Journal of Korean Society of Transportation
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• v.12 no.4
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• pp.5-19
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• 1994

The new concept of level of service for the airport system indicates that there must be strong stimulation to proceed with the current stereotyped service standards which are being criticised due to their being based on, either physical capacity/volume or temporal/spatial standards that directly incorporates the perception of passengers. Quantitative factors have been dealt with the main service measurements when evaluating level of service. However, the passenger's perception for the provision service at the airport system is definitely important consideration to assess level of service. To enhance the reliability of service level evaluation from the passenger's point of view, this study has adopted three main evaluation factors ; temporal/spatial factors as quantitative measurements and comfort and reasonable service factors as qualitative measurements. The multi-decision model was constructed using Fuzzy Set Theory and applied to a case study at Seoul Kimpo International Airport. Results are presented in terms of passenger satisfaction with a variety of different values.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.01a
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• pp.305-306
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• 2021

본 논문에서는 인천공항 Airside와 Landside에 위치한 자산의 효율적인 관리를 위한 사물인터넷(IoT) 기반 스마트 자산관리 시스템의 구성과 실증을 제시한다. IoT기반 스마트 자산관리시스템은 위치정보를 생성하는 IoT 태그와 게이트웨이, 수집된 위치정보를 수신하고 표출하는 서버로 구성되어 있으며, IoT 태그를 자산에 부착하여 자산의 실내외 위치정보를 자산관리 시스템에서 실시간으로 확인할 수 있다. 실내 위치정보는 BLE(Bluetooth Low Energy)를 통해 취득하며, 실외 위치정보는 GPS와 LoRa(Long Range)를 통해 취득 가능하다. 개발한 시스템의 성능 검증을 위해 인천공항 제1여객터미널 내 기설치된 AP를 활용하였으며, 공항 전역을 커버할 수 있는 LoRa Gateway를 설치하였다. 개발한 자산관리 시스템은 공항이 보유한 자산의 도난 방지 등 효율적인 관리 와 공항운영에 기여할 것으로 예상된다.

• Journal of Korea Water Resources Association
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• v.45 no.6
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• pp.569-581
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• 2012

The levee is the facility which is constructed along with river for the protection of landside and for passage of water when there is a flood. When the seepage is exposed to the atmosphere on the landside surface of levee, it may eventually lead to levee failure. The seepage water may be removed from the landside surface by a properly designed drainage system. The purpose of the study is to show seepage control effect of a pervious toe drain, and to compare two drainage methods of a pervious toe drain. One is the pervious toe drain suggested by U.S. Army Corps of Engineers (USACE) and the other is that suggested by Japan Institute of Construction Engineering (JICE). The levee model constructed has the following dimension: the base width is 2.6 m; the crest width is 0.4 m; the side slope 1 : 2. The water depth in the riverside is 0.5 m. The shape of the toe drain by USACE is triangular. The shape of the toe drain by JICE is rectangular. They were installed with the base length of 0.4 m. The levee model without the toe drain showed saturation surface on the land side in the experiment but not with the toe drain. The experiment results was applied to a numerical analysis model using SEEP/W to calibrate and verify. The numerical analysis results for 35 cm and 30 cm drain width showed that the drain by JICE is a little bit safer than the drain by USACE. It is also easier to construct the toe drain by JICE. The results in the study would be applied to plan the seepage control for a levee with pervious toe drain.

• Journal of Korean Society of Forest Science
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• v.76 no.2
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• pp.161-168
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• 1987

Forest road (10 Km) constructed for the demonstrational purpose by Forest Work Training Center (F.T.C.) in 1984 was partly damaged through the roadside landside and ditch erosion by the typhoon in 1986. The causes were investigated to apply for protecting against the damage of mountain forest road. The damaging length caused by roadside landside is around 3% out of total length of 10 Km forest road, and mostly coming from the curve road filled up more than 10 m slope length on the concave mountain slope, partly from the foot of fillslope along the ever-following valley and from the both side of fillslope under the outlet of culvert with ever-flowing water. In case of ditch erosion, the big damage at V-type ditch is coming from the overflow of valley water flowing down along the inside slope. Other problem is also showing in the steepness of longitudial gradient, which is felt as a problem in road to be constructed under more than 10 persent of gradient. Other cause of ditch erosion is coming from the bury of sand basin (water collecting wall) by the debris in small diameter culvert zone, namely less than 400mm, in diameter and by the soil mass slumped down from steep wall slope. From above results the causes of F.T.C. model road damage is showing to come from no-following the general guide or little experience to protect against the forest road damage. When improved above mentioned mistakes, F.T.C. Method of mountain forest road type could be developed as a model of Mountain forest road.

• Structural Engineering and Mechanics
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• v.69 no.1
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• pp.95-104
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• 2019

The Standard ASCE 61-14 proposes the Substitute Structure Method (SSM) as a Nonlinear Static Procedure (NSP) to estimate nonlinear displacement demands at the center of mass of piers or wharves under seismic actions. To account for bidirectional earthquake excitation according to the Standard, results from independent pushover analyses in each orthogonal direction should be combined using either a 100/30 directional approach or a procedure referred to as the Dynamic Magnification Factor, DMF. The main purpose of this paper is to present an evaluation of these NSPs in relation to four wharf model structures on soil conditions ranging from soft to medium dense clay. Results from nonlinear static analyses were compared against benchmark values of relevant Engineering Design Parameters, EDPs. The latter are defined as the geometric mean demands that are obtained from nonlinear dynamic analyses using a set of 30 two-component ground motion records. It was found that SSM provides close estimates of the benchmark displacement demands at the center of mass of the wharf structures. Furthermore, for the most critical pile connection at a landside corner of the wharf the 100/30 and DMF approaches produced displacement, curvature, and force demands that were reasonably comparable to corresponding benchmark values.

• Geomechanics and Engineering
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• v.13 no.4
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• pp.621-640
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• 2017

The double-row long-short composite anti-sliding piles system is an effective way to control the landslides with high thrust. In this study, The double-row long-short composite anti-sliding piles with different load segment length (cantilever length) and different pile row spacing were studied by a series of physical tests, by which the influences of load segment length of rear-row piles as well as pile row spacing on the mechanical response of double-row long-short composite anti-sliding pile system were investigated. Based on the earth pressures in front of and behind the piles obtained during tests, then the maximum bending moments of the fore-row and the rear-row piles were calculated. By ensuring a equal maximum moments in the fore-row and the rear-row piles, the optimum lengths of the rear-row piles of double-row long-short composite system under different piles spacing were proposed. To investigate the validity of the reduced scale tests, the full-scale numerical models of the landside were finally conducted. By the comparisons between the numerical and the physical test results, it could be seen that the reduced scale tests conducted in this study are reliable. The results showed that the double-row long-short composite anti-sliding piles system is effective in the distribution of the landslide thrust to the rear-row and the fore-row piles.