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- 발행기관 : 國立 昌原大學校 産業技術硏究所 (검색결과 378 건)
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김진욱 國立 昌原大學校 産業技術硏究所 1996 産技硏論文集 Vol.10 No.-
1995년 5월 31일에 단군이래 최대의 개혁이라고 언론 매체들이 보도할 정도로 혁신적인 교육정책이 발표되었다. 또, 1996년 2월 9일에는 2차 교육 개혁안이 제시되었다. 이런 정책들이 추진되면서 우리 나라 대학교육 체제가 크게 변화하고 있다. 그 중에서도 학부제의 도입이 대학의 학사 제도 개혁에서 최대의 관심사가 되고 있다. 1995년 말에 우리 나라 전 대학의 1/3이 넘는 64개 대학이 96학년도부터 학부제를 추진하겠다고 발표하였다. 그러나 대학의 다양화와 자율성이 강조되면서 학부제에는 통일된 모형이 없으며 다양한 모습으로 학부제가 구성되고 있다. 더구나 유사계열의 학과들을 묶어 학부로 하거나 한 개의 학과를 여러 개 전공으로 세분하여 학부를 구성하는 등 학부제를 도입해야하는 뚜렷한 목적도 없이 우왕좌왕하는 대학들도 보게 된다. 앞으로 수년 내에 대학 지원 예정자들의 자연 감소와 대학 교육에 대한 사회적인 인식의 변화로 대학 교육 산업에도 소비자 중심 시대가 도래하게 된다. 따라서, 소비자 중심 시대에 적합한 교육제도를 마련하는 것이 21C에는 우수대학으로 발돋움할 수 있는 길이 될 것이다. 이것은 교육 서비스의 직접 소비자인 대학 입학생들에게 자유로운 전공 선택권을 갖게 하고, 교육 서비스의 간접 소비자인 기업에는 복합 학문의 기술 인력을 제공할 수 있는 학사제도를 만드는 데에서 찾아야할 것이다.
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김태형,정원지,엄태진,홍대선 國立 昌原大學校 産業技術硏究所 2000 産技硏論文集 Vol.14 No.-
As personal computers are being developed, most softwares are based on window-based operating systems recently. The programmable logic controllers (PLC's) which are usually operated based on the DOS system should be adapted to the window-based environment in order to have the multi-tasking and flexibility of PLC programs. In this paper, the PLC driving programs which are based on the window-based operating systems are developed for the hardwares in which only DOS-based driving programs are being used currently.
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박귀선,김희석,이춘만 國立 昌原大學校 産業技術硏究所 2000 産技硏論文集 Vol.14 No.-
Fixed arm rest on present cars causes unstable driving pose and is not proper to support a arm during long time driving. So there could be problems for the safety driving. Thus, considering above defect, it can be reduced fatigue by dispersing body pressure concentrated on a waist and a bottom during driving using the arm rest mechanism. The research herein is for a long way safety driving and perceives the flexible operation suited for the steering motion. The feature in this research is that having operation set for good rest without any difficulty by putting a arm on the arm rest during steering. The arm rest has been designed for the fold type so being easy when get on and off a car and giving very useful effect to driver's long way safety driving.
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김태엽,안호균 國立 昌原大學校 産業技術硏究所 2000 産技硏論文集 Vol.14 No.-
This paper describes on the development of the utility vehicle controller using battery and photovoltaic power for subsiding operation time. In order to keep interchangeability, low cost and high performance, a separately excited DC Motor is controlled by μ-processor without velocity and current measurement. Using DC-DC converter, the solar cell and battery are parallel-operated by the maximum power point tracking(MPPT) and the output current control of solar cell. By the simulation and experiment of trial product, the validity of the proposed system is verified.
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이춘만,백창현 國立 昌原大學校 産業技術硏究所 1998 産技硏論文集 Vol.12 No.-
Nesting is a difficult problem which is frequently encountered in a number of industries where raw material has to be cut enconomically from a given stock part. The problem is present in industerial applications like shipbuilding, parts of a machine, clothing, manufacturing, paper or leather cutting. An algorithm for automatic nesting is proposed to obtain optimal allocation on a given part. The goal is to cut the part out of the material in such a way as to minimize the waste. Some typical nesting problems are simulated by the developed program.
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이춘만,임상헌 國立 昌原大學校 産業技術硏究所 2002 産技硏論文集 Vol.16 No.-
A laser cutting M/C is designed for the precise fabrications in the machine recently. The cutter is a gantry type one with specified functions of movability and strength in order to satisfy the workability. The gantry frame should move with a certain velocity in a relatively short time for the proper cutting of the object materials. The gantry is fitted with rank and pinion and the acceleration field is formed by actuating this rack and pinion. The relative displacement should be within the allowable design criteria to make sure the precise cutting of the materials by the laser. In this paper, modal and structural analysis for a laser cutter which is commonly used in the fabrication of machine, is carried out to check the design criteria of the system. The system is modeled by placing the proper shell and solid finite elements and fictitious mass properties to represent the real one.
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고주파 Sputter-microsectioning기술을 이용한 α- Fe 및 Fe-12at % Co 합금중의 Co의 작은 확산 계수의 측정에 관한 연구
李贊揆 國立 昌原大學校 産業技術硏究所 1989 産技硏論文集 Vol.3 No.-
The diffusion of Cobalt in α-iron and Fe-12at% Co alloy has been studied by a serial radio-frequency sputter-microsectioning technique with radioactive tracer 57Co in the temperature range 873 to 1194 K. It has been founded that the diffusion coefficient of cobalt in Fe-12at% Cobalt alloy is lower than that in α-iron, and in the paramagnetic state of the alloy between 1160 and 1202K the Arrhenius plot is not linear. This suggests that the magnetic moment around a cobalt atom in the alloy has a positive value even at the α-Υ transition temperature, thus the diffusion of Cobalt in Fe-12at% Co alloy is influenced by larger magnetic moment than that in α-iron.
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Browning Protential and Catechol Oxidase Activities As Affected by Must Treatment
Lee, Soo O 國立 昌原大學校 産業技術硏究所 1989 産技硏論文集 Vol.3 No.-
Must의 분리방법과 Pectic enzyme의 처리에 따른 갈색화를 검토하였다. Pomace와의 접촉시간이 길수록, 그리고 Pectic enzyme처리를 할수록 Phenol함량, Catechol oxidase의 활성과 갈색화가 증가되었다. Catechol dxidase의 활성은 SO2와 Ethanol에 의해서 대수적으로 저해를 받았다. Catechol oxidase activity and content of phenolic compounds increased in the juice of white varieties such as Neo-Muscat and Seibell 9110 which were treated with pectic enzymes. Also a similar pattern was observed on the browning capacity. The activity of catechol oxidase decreased exponentially with the increased concentration of sulfur dioxide and ethanol.
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Optimal Decision Rules for Economic Life Under Uncertainty
Hwang,Hyeon Sig,Kim,Jin Wook 國立 昌原大學校 産業技術硏究所 1990 産技硏論文集 Vol.4 No.-
본 연구는 장비나 사업의 물리적 수명이 불확실성 하에 놓여 있는 경우의 최적 경제수명에 관한 것이다. 기대치의 최대화에 근거를 두고 최적경제 수명에 대한 의사결정 규칙이 구해지고 확실성 하에서의 의사결정 기준과 비교될 것이다. 모형의 유용성과 현실성의 제고를 의하여 부가비용함수가 도입되고 최수수리 정책과 같은 장비대책문제가 우리의 모형에 의해 다루어질 수 있음을 보여주게 될 것이다. In this paper we discuss the optimal economic life of an asset or project assuming the uncertain physical life. The decision rules for optimal economic life are developed and compared with those of certainty case. To extend the usability of the model, the penalty cost function is introduced. And it is shown that various replacement policies such as minimal repair policy, age replacement policy, etc, can be treated with our model.
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윤혁민,강순주,송의호 國立 昌原大學校 産業技術硏究所 2002 産技硏論文集 Vol.16 No.-
This paper describes the implementation of FC(Frequency Converter) that can be changable voltage(2V∼250V) and frequency(40Hz∼1kHz) by DSP. This system can be using as a production or trial of Japanese or European equipment(50 Hz) as well as equipment in aerospace, ocean or military industries, operating in the special frequency over 400 Hz. As we use the TMS320LF2407A(40 MIPS) of TI company's exclusive Motion control, we have got the fastest responses and it could be possible to compose the small, low costed system with high confidence, because it includes many I/O prots and peritheral devices on a single chip.
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