This paper is a study on the malfunction that occurred during the power supply logic of the Gunner Display Device during Mortar Functional Firing under low temperature conditions. As a result of the phenomenon reproduction test and its analysis, the cause of the malfunction of the Gunner Display Device was Glitch, which occurred in the process of converting the image signal, and the improved software was applied to the Gunner's Display System by ignoring some of the image signal conversion process that causes Glitch. The improved Gunner Display Device passed the validity test and applied the improvement to the mortars. As a result of this study, several suggestions for power supply and control logic were proposed. It is expected that this study will be used as a reference in the future design of similar weapons systems.

In this paper, the key assembly of the recently developed light machine gun-Ⅱ sighting device was identified as prone to experiencing horizontal noise caused by unstable voltage fluctuations under high-temperature conditions during the defense environmental stress screening test. The primary objective ot this study is to address the issue of horizontal noise through circuit analysis and device parameter tuning, aiming to eliminate its presence.

A universal joint is a device that transmits the power of a combat vehicle engine to a cooling fan. The power of the engine is transmitted to the universal joint as it is without buffering, and play occurs at the joint between the drive shaft connected to the engine and the driven shaft connected to the cooling fan according to the usage time. Accordingly, the universal joint is periodically replaced, and the criterion for this is the degree of torsion of the universal joint. However, if the universal joint is not properly maintained during the replacement cycle, damage to the universal joint as well as damage to the surrounding power supply may occur. Accordingly, a backlash measuring device was developed to determine the limit of durability of the universal joint, and the limit of durability was derived through regression analysis of the backlash value according to the use time obtained from the accelerated life test.

목적 : 본 연구에서는 텍스트 마이닝을 활용하여 치매 보조기기에 대한 국외 연구의 대상자, 적용 환경, 활 용된 보조기기 및 연구 목적에 대한 핵심 키워드를 추출 및 분석하여 치매 보조기기 관련 연구의 동향 을 파악하였다. 연구방법 : 국외 연구데이터베이스에서 1,126건의 연구를 수집하였으며, KH coder 3 프로그램을 이용하 여 11,366개의 단어를 추출하였다. 연구자가 추출된 단어를 검토하여 연구의 대상자, 보조기기가 적용 된 환경, 활용된 보조기기, 연구 목적과 관련된 키워드들을 추출 및 분류하였다. 이후, 추출된 키워드에 대하여 빈도분석을 실시하였으며, 동시출현단어 분석을 통해 연관어 네트워크를 생성하였다. 결과 : 빈도분석 결과, 가장 많이 연구된 대상자, 환경, 적용된 보조기기, 연구 목적 유형은 보호자, 집, 프 로그램/앱, 사회참여 및 상호작용 보조였다. 연관어 네트워크 생성 결과, 보호자는 정서 및 심리지지와 돌봄과 연관성을 보였으며 돌봄은 보조기기 유형 중 원격의료와 연관성을 보였다. 사회참여를 목적으로 하는 경우에는 프로그램/앱과 로봇과 연관성을 보였다. 결론 : 본 연구의 결과를 통해 치매 보조기기에 대한 국외 연구의 주 연구 대상자와 환경 및 활용 보조기 기, 연구 목적을 확인하였으며, 각 영역 간의 관계성을 확인하였다. 본 연구의 결과는 치매 보조기기 선 택에 대한 정보제공과 치매 보조기기 지원 정책에 대한 방향성을 제시해 줄 수 있을 것으로 기대된다.

This study proposes an RCS composite damping device that can achieve seismic reinforcement of existing buildings by dissipating energy by inelastic deformation. A series of experiments assessing the performances of the rubber core pad, hysteretic steel slit damping device, and hybrid RCS damping device were conducted. The results showed that the ratios of the deviations to the mean values satisfied the domestic damping-device conformity condition for the load at maximum device displacement in each direction, at the maximum force and minimum force at zero displacement, as well as the hysteresis curve area. In addition, three analysis models based on load-displacement characteristics were proposed for application to seismic reinforcement design. In addition, the validity of the three proposed models was confirmed, as they simulated the experimental results well. Meanwhile, as the shear deformation of the rubber-core pad increased, the hysteretic behavior of super-elasticity greatly increased the horizontal force of the damping device. Therefore, limiting the allowable displacement during design is deemed to be necessary.

이 연구는 사회적 낙인과 전자감독과의 관계를 실증적으로 테스트해보고자 하였다. 특히 사회적 낙인으로 인해 전자감독제도가 전자감독 대상자들에게 얼마나 사회경제 적인 지위에 손상을 입혔는지, 현재 직장생활을 하고 있는 전자감독 대상자들의 사회 적 낙인과 어떠한 관련성을 맺고 있는지 살펴보는데 목적을 두고 있다. 전자감독제도의 목적이 전자감독을 통한 재범 예방에 있기 때문에 예방적인 측면에서 살펴볼 필요가 있는 것이 사실이지만, 실제로 전자감독 제도가 사회적 “낙인”과 맺는 관계에 대해서는 제대로 다루어지지 않고 있다. 따라서 이 연구는 OLS 위계적 회귀분석을 활용하여 전자감독 대상자 중 현재 직장 생활을 하고 있는 대상자를 중점으로 직장 내 지위 박탈이 전자장치 훼손 충동성에 유의 미한 영향을 미치는지 검증하였다. 연구 결과, 사회적 낙인이 다른 변수를 통제할 때, 전자감독 대상자가 전자장치를 훼 손시키려는 의지에 통계적으로 유의미한 영향을 미치는 것으로 나타났다. 즉, 전자감독 대상자가 사회적 낙인으로 인해 직장생활 및 사회생활을 제대로 할 수 없게 되면 전자장 치 훼손 충동을 느끼게 될 가능성이 큰 것으로 볼 수 있다. 따라서 향후 사회적 낙인과 관련된 범죄자 주변 환경의 불합리한 직장 내 편견을 해소할 수 있는 세심한 보호관찰 전략이 만들어질 필요가 있다고 하겠다.

대기오염물질과 온실가스 배출량을 저감 시키기 위한 배기 후처리 장치에 대한 연구는 활발히 진행 중이지만 그 중 선박용 입 자상물질/질소산화물(PM/NOx) 동시저감 장치에서는 엔진에 미치는 배압 및 필터 담체 교체에 대한 문제가 발생하고 있다. 본 연구에서는 PM/NOx를 동시저감 할 수 있는 일체형 장치의 최적 설계를 위해 장치 내부 유동과 입·출구 압력을 통한 배압의 변화를 연구하여 적절한 기준을 제시하였다. Ansys Fluent를 활용하여 디젤미립자필터(DPF) 및 선택적촉매환원법(SCR)에 다공성 매체 조건을 적용하였고 공극률은 30 %, 40 %, 50 %, 60 % 및 70 %로 설정하였다. 또한, 엔진 부하에 따른 Inlet 속도를 경계 조건으로 7.4 m/s, 10.3 m/s, 13.1 m/s 및 26.2 m/s로 적 용하여 배압에 미치는 영향을 분석하였다. CFD 분석 결과, 장치의 입구 온도 보다 입구 속도에 따른 배압의 변화율이 크고 최대 변화율은 27.4 mbar였다. 그리고 모든 경계 조건에서의 배압이 선급 기준인 68 mbar를 초과하지 않았기 때문에 1800 kW 선박에 적합한 장치로 평가 되었다.

이 논문은 성경의 일부 혹은 전부가 문학적 해석의 여지를 가지고 있다는 관점에서 로마서에 기록된 사도바울의 자기 고백을 수사학적인 도구로 본다. 로마서 해석의 역사에서 바울의 개인적 고백이 담긴 7장 7-25절은 율법을 논하는 다른 부분의 내용과 문체적 차이를 보인다는 이유로 여담, 삽입, 낯선 내용으로 여기거나 혹은 바울이 저자가 아니라는 시각이 존재해왔다. 사도의 권위로 어렵고 중대한 율법을 다루는 담론에 지극히 사적인 고백이 들어간 것은 바울적이지 않다는 해석이다. 그러나 이 논문은 그것을 본문에서 벗어난 내용으로 보지 않고, 오히려 난해하고 논란이 많은 율법이란 이슈를 1세대 크리스천 커뮤니티가 이해하도록 생생한 일인칭 내러티브로 설명한 문학적 도구로서 필수 불가결한 본질로 본다. 다시 말해서 바울은 우리가 이제는 율법에서 벗어났다는 주장을 보강하려고 사적인 고백을 사용한 것이다. 바울의 문학적 전략은 유대인과 이방인을 같은 믿음 안에 들어오게 하여 그들이 교회 안에서 서로 포용하도록 도와주는 데 있었다. “율법이 죄냐?”는 그의 물음은 율법을 지켜야 하느냐 마느냐로 대립하고 있던 교회 안의 두 그룹 모두에게 던진 질문이다. 따라서 바울의 자기 고백은 유대인에게나 이방인에게나 그리스도의 은혜 외에 율법으로는 죄의 문제를 해결할 수 없다는 것을 실증적으로 보여준 문학적 도구로 사용됐음을 알 수 있다.

In this study is a study to measure the section by voltage through the high integration of the circuit of the inspection equipment for the power supply circuit of semiconductor equipment. The experiment was conducted by increasing the -1.5∼4 voltage section by 0.5V. At this time, the tolerance was applied to ±0.1%+5mA. Although the voltage increased through the experiment, the accuracy of the measurement data did not change, and it was confirmed through this experiment that the null hypothesis(H0) was adopted in each section through the hypothesis test.

In this study, for the purpose of reducing the catch of small giant octopus in a net pot, an escape experiment of octopus was performed on five types of escape rings of different sizes. As a result of the experiment, the smallest giant octopus with a weight of 406 g was found to escape from an escape ring with a diameter of 30 mm or larger, and 592 g octopus, a weight similar to the octopus of the current minimum landing weight (600 g), escaped from an escape ring with a diameter of larger than 40 mm. An individual weight with 406 g becomes 39 mm when converted from a diameter of 25 mm circular escape vent; that is, the circumference to the inner diameter of the mesh. It can be inferred that the converted mesh size of 39 mm cannot escape. Logistic regression analysis was performed using a generalized linear model (GLM) to investigate the correlation between the ratio of escape ring size/Mantle diameter (R/MD) and the escape rate. As a result, it was found that there was a significant correlation between the R/MD ratio and the escape rate and that the higher the R/MD ratio, the greater the escape rate. As a result of logistic regression analysis, the R/MD value was denoted 0.520 with the 50% escape rate. In addition, it can be estimated to be about 50 mm when converted to the mesh size. Therefore, in this study, the diameter of the escape ring and the size of the escape possible of the octopus were experimentally considered. It was found that there was a significant correlation.

PURPOSES : The objective of this study is to develop an optimal placement of the overturning prevention device based on a 3D object model during the development of the girder-type overturning prevention device for the remote control construction of bridges METHODS : Based on existing construction methods and literature research, a detailed design model of a phase-optimized conduction prevention device is presented. The 3D-object model data, optimal placement, and an operating range of the equipment developed for the remote control construction of bridge girders were considered. RESULTS : The shape of the overturning prevention device was selected taking into account the dimensions and operating range of numerous devices developed for the remote control construction of the bridge. In particular, the detachable device was chosen to allow a trouble-free construction considering the spacing between the pier cap of the bridge and the girders. The overturning prevention device presented based on this 3D object model will be manufactured as a mock-up and used for a demonstration project on remote control bridge construction. CONCLUSIONS : This will enable easy and economical construction as this development will support remote control construction of bridge girders to avoid accidents such as workers falling from high places like piers.

Extended PE double-walled pipe is a technology that hollow walled pipe widens hollow wall to the side extruded as a square and extrudes the form added with a stiffener of I-BEAM shape from the time of initial pressing out when producing existing double walled pipe. It can improve production speed 1.6 times faster. Plastic pipes used in study were PE pipe, especially HDPE pipe that is safe from reproduction of seaweed and bacteriomycota and can be used semi permanently as a few corrosion by corrosive substance existing in soil is made. The purpose of this study is to decrease production time and increase outputs by extending width of extruding side 1.5 times wider when producing PE double walled pipe through making existing double walled pipe into extended PE double wall. Also, it is aimed to develop an extended PE double-wall pipe that can eliminate causes of defect occurred by middle pipe wound around with drawing machine 90°when producing existing goods.

Scale and rust generation in water pipes is a common phenomenon when cast iron water pipes have been used for a long time. A physical water treatment device is known among various means for suppressing rust in a water pipe, and a zinc ionization device for putting zinc metal into a pipe and emitting the zinc cation into water is one of such devices. This research measured the amount of zinc ion generated, which is known to exhibit an effect of inhibiting rust and scale generation in a pipe, and examined the scale and rust inhibition effect of the ionization device installed for ground or building water supply. In the case of distilled water, the concentration of zinc ion increased by circulating water in the ionization device several times, and it was verified to be hundreds of μg/L, and in the case of discharging ground or tap water, it was verified to be tens of μg/L. In addition, a verification pipe was installed to confirm the change inside the pipe before and after installation of the zinc ionization device, and the internal condition of the pipe was observed 3 months to several years after installation. It was confirmed that the corrosion area of the surface of the pipe was no longer increased by installing a corrosion inhibitor, and if the pipe was already filled with corrosion products, the amount of corrosion products gradually decreased every year after installation. The phenomenon of fewer corrosion products could be interpreted as expanding the space in the pipe due to the corrosion product as Fe2O3 adhered to the inner surface of the pipe and turned into a smaller black Fe3O4. In addition, we found that scale such as CaCO3 together in the corrosion by-products gradually decreased with the attachment of the ionization device.