• Proceedings of the KIEE Conference
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• 2003.11c
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• pp.528-531
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• 2003

Recognition of licence plate becomes a key issue to many traffic related application such as road traffic monitoring or parking lots access control. In this paper, the brightness, YIQ and HSI methods were used to locate a license. After the characters in license plate were extracted, template matching method was applied for character recognitions. To test the performance of the proposed algorithm, images of seventy vehicle were tested. The success rates for license plate and character recognition were approximately 99%, and 96%, respectively

• Journal of Oriental Neuropsychiatry
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• v.19 no.2
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• pp.223-230
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• 2008

소합향원 (蘇合香元) 가감방(加減方) 정유향기의 진통효과가 투여방법에 따라 어떤 차이가 있는지를 비교, 검토함으로서 본 약재의 새로운 적용방법을 탐색해 보고자 한다. 방법 : 가감소합향원에서 추출한 정유향기를 실험동물을 대상으로 7일간 경구 (50mg/kg, 100mg/kg), 흡입 (매일 3시간씩 1일 2회), 또는 피부도찰 (10mg) 방법으로 투여하여 페닐퀴논-유도 writhing test, 아세트산-유도 writhing test 및 hot-plate test를 실시하였다. 결과 : 가감소합향원 정유향기는 페닐퀴논-유도 writhing test에서는 피부도찰이 가장 효과적 이었으며 그 효과는 양성 대조약물인 아세트아미노펜 보다 약간 더 우수하였다 (p<0.05). 아세트산-유도 writhing test에서도 피부도찰법이 가장 좋은 효과를 나타내었으며 양성대조 약물인 아미노피린보다는 좀 더 좋은 효과를 보여주었다 (p<0.05). 그러나 hot-plate test에서는 경구투여가 가장 좋은 진통효과를 나타내었는데 고용량 (100mg/kg)에서는 양성 대조약물인 아세트아미노펜보다 유의적으로 더 효과적이었으나 저용량 (50mg/kg )에서는 이보다 다소 약하였다. 이상의 연구결과, 가감소합향원의 정유향기는 피부도찰시에는 비특이적 화학자극제인 페닐퀴논이나 아세트산에 의한 통증의 완화에 보다 효과적이며, 경구투여시에는 중추신경계에 영향을 미치는 hot plate에 의한 열자극성 통증에 더 유효함을 의미한다. 결론 : 가감소합향원의 정유향기액은 향기흡입보다는 피부흡수나 경구투여방법으로 진통의 목적으로 응용될 수 있을 것으로 사료된다.

• Journal of Korean Society of Steel Construction
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• v.26 no.1
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• pp.1-10
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• 2014

In this study, out-of-plane flexural test was performed to analyze behavior properties for a beam specimen which imitated a structure with connection member between reinforced concrete and steel plate concrete part. Tie bars between a upper and a lower steel plate, and tie wide flange shapes between upper and lower ribs were designed to prevent the steel plate or the ribs from breakaway in the connection of the specimen. As a result of the test, ductile failure behavior of the specimen and the functionality of the tie members were conformed as originally intended. Also, tension tests were performed to evaluate the design appropriateness of two specimens produced to anchor and connect mechanically #14 bars. The two test results showed that the anchorage connection system behaves in elastic limit during the main bars yielded, and the integrity of the designed system was verified.

• 한국전산유체공학회:학술대회논문집
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• 1995.10a
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• pp.235-240
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• 1995

The paper describes hypersonic rarefied flow of helium and nitrogen over a flat plate by the direct simulation Monte Carlo (DSMC) method. The effect of incomplete accommodation and plate thickness are analyzed and the computational results are compared with wind tunnel test data. Also computational aspects of the method are outlined.

• KCI Concrete Journal
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• v.14 no.1
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• pp.51-60
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• 2002

Strengthening of existing concrete structures is a major concern in recent years as the number of degraded structures increases. The purpose of this paper is to investigate the static and fatigue behavior of reinforced concrete (RC) beams strengthened with steel plates. To this end, a comprehensive test program has been set up and many series of strengthened beams have been tested. The major test variables include the plate thickness, adhesive thickness, and the shear-span to depth ratio. The test results indicate that the separation of plates is the dominant failure mechanism even for the full-span-length strengthened beams with steel plate. The theoretical ultimate load capacities for strengthened beams based on the full composite action of concrete beam and steel plate are found to be larger than the actual measured load capacities. The strengthened beams exhibit more dominant shear cracking as the shear-span to depth ratio decreases. The ultimate capacity of strengthened beams increases slightly with the increase of adhesive thickness, which may be caused by the late initiation of plate separation in the beams with thicker adhesive. A realistic concept of ductility for plate-strengthened beams is proposed in this study. It is seen that the strengthened beams show relatively low ductility compared with unstrengthened beams. The present study indicates that the strengthened beams exhibit much higher fatigue resistance than the unstrengthened beams. The increase of deflections of strengthened beams according to the number of load cycles is much smaller than that of unstrengthened beams. The present study provides very useful results for the realistic application of plate-strengthening method in reinforced concrete structures.

• Transactions of the Korean Society of Automotive Engineers
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• v.21 no.3
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• pp.134-141
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• 2013

Reflow soldering process is essential in electronic package. Reflow process for a long time results from the decrease of reliability because IMC is formed excessively. Solder alloys of Sn-37Pb and Sn-Ag with different kinds of Cu contents (0, 0.5 and 1 wt.%) as compared with Ni and Cu plate joints are investigated according to varying reflow time. The interfaces of solder joints are observed to analyze IMC (intermetallic compound) growth rate by scanning electron microscope (SEM). Shear test is also performed by using SP (Share-Punch) tester. The test results are compared with the solder joints of two different plates (Ni and Cu plate). $Cu_6Sn_5$ IMCs are formed on Cu plate interfaces after reflows in all samples. Ni3Sn4 and $(Cu,Ni)_6Sn_5$ IMCs are also formed on Ni plate interfaces. The IMC layer forms are affected by reflow time and contents of solder alloy. These results show that mechanical strength of solder joints strongly depends on thickness and shape of IMC.

• Journal of the Earthquake Engineering Society of Korea
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• v.11 no.6
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• pp.23-32
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• 2007

This study developed an analytical model for predicting nonlinear behavior of PT flat plate frames having slab-column connections with and without slab bottom reinforcement passing through the column. The developed model can predict the failure sequence until punching failure occurs. For verifying the analytical model, the test results of PT flat plate slab-column connections were compared with the results of the analysis. Moreover, the results of static pushover test and shaking table test of 2 story PT flat plate frame were compared with analysis results. For evaluating seismic performance of PT flat plate frame, this study conducted nonlinear response history analysis of the 2 story PT flat plate frame with and without slab bottom reinforcement passing through the column under 1940 El Centro ground motion scaled to have pseudo spectral acceleration of 0.3, 0.5, and 0.7g at the fundamental period of the frame. This study observed that as ground motion is more intense, seismic demands for the frame having the connections without slab bottom reinforcement passing through the column are larger than those without slab bottom reinforcement.

• Journal of the Korean Society of Safety
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• v.29 no.6
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• pp.46-48
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• 2014

This paper compared and demonstrated the performance of the earth plate for conventional type and early streamer discharging type developed a new plate in order to improve the performance of the ground plate for use in grounding. The results obtained are shown below; early streamer discharge earth plate was high 5 kV on DC flashover voltage and corona discharge current was higher than about 2 times under the same test conditions compared to the conventional earth plate. From the experiential result, streamer discharge earth plate had a function of rapid inflow/out flow than the general ground plane because of by corona discharge current to be generated in the sharp serrated in formed the ground plane when strike current occurred. In the future, the newly developed early streamer discharge ground plate would be beneficial for grounding work to be widely used to promote the convenience and economy of construction.

• Journal of Korean Society on Water Environment
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• v.22 no.4
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• pp.614-618
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• 2006

The purpose of this paper, was to compare its result with both the settler of inclination plate and the settler of stick fin through the pilot test to know optimized interval of fin. According to intervals of fin, We get most optimized interval of fin in laboratory is inclination plate with $60^{\circ}$ and wide of fin with 50 mm, interval of fin with 150 mm. The result of laboratory showed 67.6~70.6%, 70.4~74.2% for the settler of inclination plate, the settler of inclination plate stick fin. The sedimentation efficiency of the settler of inclination plate stick fin showed 2.8% higher than the sedimentation efficiency of the settler of inclination plate. From now on, Inclination plate settler stick fin requirement in study.

• Korean journal of food and cookery science
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• v.16 no.5
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• pp.416-424
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• 2000

Food waste is inevitable in any institutional food system. Although many factors contribute to plate waste, few quantitative studies of plate waste have actually been carried out. This study was undertaken to check (a) how the service style that affects the amount of plate waste, (b) the difference of plate waste between men and women and, (c) the influence of plate waste and customers'satisfaction to served meal. The survey was conducted through March 15 and April 9, 2000 by weighing the amount of plate waste and by questionnaires. Statistical data analysis was completed using the SPSS-PC program for descriptive analysis and ANOVA test. The results were as follows; (1) The largest amount, plate waste percentage measured were 19% of‘Hot alaska pollack soup’and 18% of‘Kuansh soup’respectively. (2) Amount of leftovers can be reduced if the pre-portioned serving style is changed to self-portioned serving. (3) The main reasons for leaving leftover were‘served too often’and‘disliked food’. (4) The customers'satisfaction rate was highly correlated with the leftover amounts.