http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
선미선저(船尾船底)에 미치는 추진기(推進器) 유기압력(誘起壓力) -선체표면(船體表面)에 붙인 압력변환기(壓力變換器)로 계측(計測)되는 압력(壓力)으로부터의 한 분리방법(分離方法)-
조규종,Kyu-Jong,Cho 대한조선학회 1970 大韓造船學會誌 Vol.7 No.1
The propeller induced pressure fluctuation around a ship's stern is one of the interesting problems from viewpoints of the noise and vibration. Most of the experimental works on the subject employ pressure transducer attached on hull surface near the propeller. In the technique, the measured pressure includes the hydrodynamic pressure transducer attached, if they exit. Hence, the separation of the additional pressure due to vibration from the measured pressure is essential for the determination of true values of the propeller induced pressure. In this paper, to contribute to the separation method, the author investigated the additional hydrodynamic pressure as below, based on the numerical calculation. (1) Hydrodynamic pressure on the body surface of two dimensional cylinders of some mathematical sections such as ellipse, rectangle, Lewis form of hypotrocoidal charactor and curvilinear-element section with chines oscillating vertically at high frequency in a free surface. (2) Hydrodynamic pressure on the surface of the shell plate in local vibration in an ideal fluid.
E-Beam Probing을 이용한 Embedded SRAM 검증방법
조규종(Kyu-Jong Cho),이윤우(Yun-woo Lee),이규택(Kyu-Taek Lee),민형복(Hyung-Bok Min) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.11
Recently a embedded SRAM is widely used in various applications because of its compatibility with logic fabrication process and its many merits such as fast access time, wide bandwidth, and so on. Therefore development of robust embedded SRAM and its functional verification are very important. But because of a limitation of input or output pads, it is hard to observe internal nodes’ characteristics of a embedded SRAM. In this paper, we proposed that a E-Beam probing technique is very useful to monitor internal nodes of embedded SI1AM, and E-Beam probing measurement is easily carried out with small pads that are previously in layout design process arranged on top metal layer of chip.
장은식(Eun-sik Jang),조규종(Kyu-jong Cho),이명규(Myung-gyu Lee),Chen-si 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
Refrigerator Door is the non-symmetric structure consist of Stainless steel plate, Urethane Foam, ABS and Plastic injection product. When the manufacturing process of refrigerator door, partial constriction caused deformation of Stainless steel plate in the process of polymerization and cooling after injection of Urethane between Stainless steel plate and ABS. This is the displacement of cooling & contraction process from end of Urethane polymerization (12 ℃) to ambient temperature (20℃), and it can be recognizable displacement about 0.2 - 0.3㎜. So, We studied that grasp the main factor of Refrigerator Door displacement and show the scheme of thermal strain minimization.
朴魯植,曺奎鍾,洪性完 울산대학교 1977 연구논문집 Vol.8 No.2
本 硏究는 韓國 商工部 標準型船 中 G.T. 10,000?級 Liner船型에 數式表示法을 適用하여, 原船型과 數式表示에 依해 얻은 船型과를 比較檢討하여, 本 方法이 船型의 初期設計에 實用 可能性이 있음을 確認하였고 本法의 應用에 必要한 program 및 각 parameter들의 變化에 따른 水線形狀의 變化를 調査하였다. This paper applied the liner form of G.T. 10,000 ton class ship included in the standard ship forms of the Cmooerce and Industry Ministry, to represent the ship form mathematical mehtod. This discription compared with and inspected both this results and original lines. and , It was investigated that the variations of waterline form in accordance with the varing water line paramenters and form parameters in order to adopt the datafor the applications of this method.