• International Journal of Computer Science & Network Security
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• 제23권2호
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• pp.111-125
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• 2023

Due to the car's central role in modern life, the industry has become more fiercely competitive, with each manufacturer doing everything it can to attract buyers with features like plush interiors, comprehensive warranties, and helpful customer service departments. Customers may not have the luxury of buying a new car, so they will have to buy a used car. Nevertheless, in most cases, the customer (car driver) may be deceived about the vehicle information and history and thus will be confused in making his/her decision to purchase. In addition, after all attempts to obtain vehicle information (plate number, model, year of manufacture, number of maintenance times, accidents, etc.), the customer's many attempts may fail. In general, the government records and verifies the information of all cars, even those that pass through their borders. However, there might still be some trouble in obtaining this information. From this standpoint, we will design a website that makes it easier for car drivers, car companies and governments to carry out all the above-mentioned processes. It will also allow users, whether a driver or a car company, to inquire about all vehicle information through detailed and integrated reports on its condition since its entry into the Kingdom of Saudi Arabia until the present time, in addition to information supported by numbers and statistics to ensure the integrity and reliability of the information. This platform will save the trouble of searching for car information for drivers and car companies. It will also help governments keep track of the information of all cars entering and leaving the Kingdom of Saudi Arabia, which will contribute to facilitating the process of viewing the history of any car that has previously entered the Kingdom's borders.

• 시큐리티연구
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• 제12호
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• pp.201-224
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• 2006

본 연구에서는 배우자살인을 설명할 수 있는 요인으로 인구사회학적 특성, 성장과정시의 가정환경 및 학교생활, 그리고 배우자간 갈등수준요인 등을 중심으로 이러한 요인들이 배우자살해의 동기에 어떠한 차이로 영향을 주는지 살펴보았다. 배우자살인의 동기에 영향을 미치는 요인들을 분석해본 결과, 성별, 직업유무별로는 배우자살인의 동기에 통계적 차이를 발견할 수 없었던 반면에, 연령대별로는 통계적으로 유의한 차이가 있었는데 전체적으로는 표출적 동기에 의한 살인이 대부분이지만, 배우자살인에 있어서 40대에서 11.1%가 도구적 동기에 의한 살인을 했다는 것은 좀 더 세밀한 분석이 필요하며, 타인살인과는 달리 성장과정에서 가정환경이 열악하였던 배우자살인범의 경우에는 100% 표출적 동기에 의한 살인을 한 것으로 나타났다. 이러한 결과는 어려서 불량한 가정환경에서 자란 살인범일수록 결혼 후 정서적인 이유, 즉 충동성이나 격정성, 우발성 등에 의하여 더 쉽게 배우자살인에 이를 수 있다는 증거가 될 수 있다. 반면에 성장과정시 학교생활 행태는 배우자살인의 동기를 설명하는데 유용성이 없었다. 한편 배우자간 갈등수준은 배우자살인을 설명할 수 있는 매우 유용한 요인임을 확인할 수 있었는데, 즉 배우자간 갈등수준이 높을수록 표출적 동기에 의한 살인이 많이 발생함을 알 수 있으며, 반면에 낮은 갈등속에서도 도구적 동기에 의한 배우자 살인의 비율이 13.3%나 된다는 것은 배우자간의 살인을 이해함에 있어서 주의깊게 보아야 할 대목이다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 춘계학술대회 논문집
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• pp.743-748
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• 2005

In order to realize a three-dimensional shape on CAD, the machining process has been widely used because it offers practical advantages such as precision and versatility. However, the traditional machining process needs a large amount of time in cutting a product and the remained material causes trouble such as inconvenience for clarity. Therefore, a new rapid manufacturing process using the hot tool, Rapid Heat Ablation process (RHA), has been developed. In this paper, the hot tool for RHA process is devised to minimize radius of heat affected zone and also investigated for verification. TRIZ well-known as creative problem solving method is applied to overcome the contradictive requirements of the hot tool. For the detailed design of the hot tool, numerical model is established with several assumptions. Based on the numerical results, surface temperature is measured with K-type thermocouple at the predetermined location. Numerical and experimental results show that the devised hot tool fulfils its requirements. It verifies the practicality of hot tool that the hemisphere shape is ablated using the hot tool with stair structure.

• 미생물학회지
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• 제1권1호
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• pp.26-29
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• 1963

1. Cooked soybean was fermented for about a week by Bacillus megatherium 88-3, D-28 and D-28a; and compared with the cooked soybean which was not fermented, this fermented soybean showed much increase in vitamin $B_{12}$ and $B_2$, while vitamin $B_1$ decreased. 2. In the process of fermenting the cooked soybean, Bacillus megatherium, 88-3 is the bacteria which produces brown pigment; and Bacillus megatherium D-28 and D-28a is the bacteria which produces yellow pigment. 3. In weight, fermented soybean-fed rat showed more increase than the unfermented soybean-fed rat. But the growth of the rat fed with Bacillus megatherium 88-3 fermented soybean was not good. Probably, this phenomenon came from the trouble in rat's metabolism by brown pigment. 4. In food efficiency, Bacillus megatherium D-28a is 4.3% lower than Bacillus megatherium B-938, but it is 17.l% higher than the unfermented cooked soybean. Bacillus megatherium 88-3, which is 47.1% lower in food efficiency than the unfermented cooked soybean, has been found "not good" in the growth of rat.th of rat.

• 로봇학회논문지
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• 제4권4호
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• pp.265-272
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• 2009

IVarious driving mechanisms to adapt to uneven environment have been developed for many urban search and rescue (USAR) missions. A tracked mechanism has been widely used to maintain the stability of robot's pose and to produce large traction force on uneven terrain in this research area. However, it has a drawback of low energy efficiency due to friction force when rotating. Moreover, single tracked mechanism can be in trouble when the body gets caught with high projections, so the track doesn't contact on the ground. A transformable tracked mechanism is proposed to solve these problems. The mechanism is designed with several articulations surrounded by tracks, used to generate an attack angle when the robot comes near obstacles. The stair climbing ability of proposed robot was analyzed since stairs are one of the most difficult obstacles in USAR mission. Stair climbing process is divided into four separate static analysis phases. Design parameters are optimized according to geometric limitations from the static analysis. The proposed mechanism was produced from optimized design parameters, and demonstrated in artificially constructed uneven environment and the actual stairway.

• 항공우주시스템공학회지
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• 제2권4호
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• pp.19-24
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• 2008

In this study gives detail on the composition and process of Quad-rotor blade Vehicle. It may seem simple but we have many trouble because of many subtleties. Unless designed carefully, it is very difficult to control of stability by reason of disturbances in the air and unbalance in the motor. We want to have a more stable output so add other electronics supplement, and change the battery in oder to increasing thrust. It cannot be done quickly, nor cheaply because it is more difficult than first ideas that control of Quad-rotor. But we complete manufacture of basically controllable vertical takeoff and landing aircraft.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 하계학술대회 논문집 C
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• pp.1670-1672
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• 2001

In compared with air insulated switchgear GIS has a high efficiency and confidence. Insulation method using $SF_6$ gas has a very excellent insulation characteristics for high voltage equipment but has a characteristics that insulation heredity is changed for internal unequal electric field. So analysis of electromagnetic field in GIS is very important basic data for structure design and trouble diagnosis process. In compared with established method, SNM in this paper observes variation of the electromagnetic field with real time and get result very similar to measurement. In order to know the variation of electromagnetic field distribution for transient response for time and position, variations are observed when metal particles are moving fast.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2003년도 춘계학술대회 논문집
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• pp.373-377
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• 2003

Recently, advanced manufacturing systems with high speed and intelligence have been developed for the betterment of machining ability. In this case, reliability prediction work with motion characteristic evaluation of sliding cover(C-plate, Bellows, etc) has also important role from design procedure to manufacturing and assembly process. Accordingly in this study, H/W test-bed system for reliability evaluation of sliding cover has been developed to obtain proper reference data for design of new model, prevention trouble (failure mode), and improvement of quality and lift cycle extremely for advanced mother machinery.

• 동력기계공학회지
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• 제15권6호
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• pp.59-66
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• 2011

This study was carried out the experimental and the analysis for process of carburizing and quenching, evaluated the reliability of mock-up. Carburizing of comer of rock gear was higher than body regardless of condition of eight processes, and the end of gear tooth was more highly distributed than root. Hardness of surface shows the maximum value and was decreased linear to depth direction. The result of analysis wasn't nearly the heat deformation. In mock-up, tooth flank increased 0.096%, thickness of tooth decreased 0.11% and body increased 0.11%. It had no trouble with assembly and operation like this. The mock-up of recliner for automobile was secured stability by four types of test.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2003년도 춘계학술대회 논문집
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• pp.260-264
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• 2003

The application of solar energy, in the field of alternative energy, was on the increase tendency. In the case of advanced nations, through continuous R&D, solar-heat hot-water-boiler with high efficiency has been used for the house and the industrial process on business, advanced nations on reached up the experimental stage of solar generation system. But the actual circumstance of the domestic has been not accomplished the popularization of solar-heat hot-water-boiler and the settlement of it which is the fundamental stage of the solar energy usage. This trouble, the domestic was flooded with small enterprise for producing solar-heat hot-water-boiler, was caused by the popularization and the production without verification of performance. To supply the monitoring program for evaluating solar-heat hot-water-boiler, this research was purpose to improve the technical development of the enterprise for producing solar-heat hot-water-boiler and served as an aid f3r the enlargement and the popularization on solar energy.