• Title/Summary/Keyword: mechanic characteristics

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Sensory and Mechanical Characteristics of Maneul-Sulgi by Different Ratio of Ingredient (마늘설기의 재료 배합비에 따른 관능적$\cdot$텍스쳐 특성)

  • Lee Hyo-Gee;Lee Eun-Sun;Cha Gyung-Hee
    • Korean journal of food and cookery science
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    • v.21 no.2 s.86
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    • pp.180-189
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    • 2005
  • The purpose of this study is to determine the optimal mix ratio of Maneul-Sulgi and thereby, review its availability as health cake. For this purpose, the ratios of garlic juice and powder were varied with sugar added. As a result of quantitative descriptive analysis, it was found that the more the garlic juice and powder were added to non-glutinous rice, the Garlic taste was stronger. On the other hand, the less garlic powder was added, the cake would taste softer, and the less garlic juice was added, the cake was more chewy and moist. The feeling after swallowing was best when the ratio of garlic juice was $7\%$. As a consequence of surveying the tastes of Maneul-Sulgi, it was found that the less garlic powder was added to non-glutinous rice, the cake was more preferred. It was perceived that the ratio of garlic juice should be $7\%$ for flavor and desirable taste. As a result of testing the mechanic characteristics, it was found that the less garlic juice was used, the cake was more hard, elastic, cohesive, viscose and chewy. The more garlic powder was used, the Adhesiveness was higher. The Overall acceptability of sensory examination for Garlic taste had positive correlation Hardness of sensory examination and mechanical examination for adhesiveness.

A Study on the Abrasive Wear Properties of the PTA Overlay Layers using the Super Alloy Powder (초내열합금분말에 의한 PTA 오버레이부의 연삭 마모 특성 연구)

  • Kim, Young-Sik;Choi, Young-Gook;Lim, Chang-Hoon;Kim, Jong-Do
    • Journal of Welding and Joining
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    • v.27 no.3
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    • pp.80-84
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    • 2009
  • The Plasma Transferred Arc (PTA) overlay welding method is lately introduced as one of the most useful surface overlay method of the engine component. In this paper, the overlay welding on the SNCrW heat resisting alloy was conducted by the PTA overlay welding process using the super alloy powder. The characteristics of the overlay layers were investigated through the metallurgical and abrasive test. Experimental results showed that the overlay on the SNCrW heat resisting alloy surface was successfully made without hot cracking. The friction wear characteristics of the Co-base Stellite 6 overlayer were most superior. However the abrasive wear characteristics were most inferior in the Co-base Stellite 6 overlayer.

Microstructure and Wear Characteristics of Nickel Reinforced AC8A Composites

  • Kim, Hyung-Jin;Tulugan, Kelimu;Park, Won-Jo
    • Journal of Power System Engineering
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    • v.19 no.1
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    • pp.50-55
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    • 2015
  • This study takes AC8A, which is a representative light weight alloy as matrix, and nickel as reinforcement for its superior properties. The manufacturing method applied in this study required low pressure for the infiltration of the metal matrix into the reinforcement. Porous Ni was applied as preform. The fabrication was conducted under 0.3 MPa at 600, 700 and 750 degrees centigrade, respectively. Intermetallic compounds Al3 generated between Al and Ni were observed in the composites. Microstructure, Vickers' hardness and wear characteristics of the composites were also investigated. The result indicates that the structures of compounds created at 650 degree centigrade were distributed densely; the grain size of the substances and the compounds was increased with the infiltration temperature.

A Study on the Surface Modification of the Super Alloy by Plasma Transferred Arc Overlay Welding Method

  • Kim, Young-Sik;Lim, Chang-Hoon;Hwang, Won-Seok;Choi, Young-Gook
    • Journal of Advanced Marine Engineering and Technology
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    • v.31 no.7
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    • pp.852-856
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    • 2007
  • The Plasma Transferred Arc(PTA) overlay welding method is lately introduced as one of the most useful surface overlay method of the engine component. In this paper, the overlay welding method on the Nimonic super alloy was established by the PTA overlay welding process using the same super alloy powder. The characteristics of the Co-base and Ni-base super alloy overlay layers were investigated through the metallurgical, abrasive and cavitation erosion test. The abrasive and cavitation characteristics were investigated at room and high temperature.

A Study of Bearing Capacity and Settlement of Shallow Foundation by FEM (유한요소법에 의한 얕은 기초의 지지력 및 침하 특성 연구)

  • Park, Jong-Su;Park, Choon-Sik;Jang, Jeong-Wook
    • Proceedings of the Korean Geotechical Society Conference
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    • 2006.03a
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    • pp.1312-1319
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    • 2006
  • This thesis studied the scale effects on bearing capacity and settlement characteristics by using FEM. The conclusions of the study are as follows. 1) For sandy soil, the bearing capacity ratio increased in the form of logarithm as the foundation width increased. Hence application of static mechanic theory results in overestimation of the bearing capacity when the bearing capacity should be derived from plate loading test results. 2) In clayey soil, the characteristics of the bearing capacity associated with foundation width met Terzaghi's bearing capacity theory. 3) In sandy soil, the settlement ratio increased non-linearly as foundation width increased. However, in clayey soil, the settlement ratio increased linearly. 4) In ordinary soil, the foundation width - settlement ratio turned out to be close to that of sandy soil.

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Characteristics of Burr Generation and Deburring in Honing (호닝의 버 생성 분석과 제거가공에 관한 연구)

  • 최민석;김정두
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1996.11a
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    • pp.100-104
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    • 1996
  • This paper describes the characteristics of micro-burr formation in the cross hatch and deburring in honed surfaces. Two types of micro-burrs formed in the cross hatch were defined as upper edge burr (type A) and side edge burr (type B). The size of micro-burrs were measured for the honed surfaces of several cross hatch angle. Deburring mechanism and system using magneto-electrolytic process including the abrasive pad for mechanic deburring effects together were introduced. Deburring experiments and analysis were carried out to confirm the effectiveness of the deburring process.

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A Comparative Study on the Buckling Characteristics of Single-layer and Double-layer Cylindrical Space Frame (단층 및 복층 원통형 스페이스 프레임의 좌굴특성에 관한 비교연구)

  • 강민화;정환목;권영환
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 1995.10a
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    • pp.50-57
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    • 1995
  • Cylindrical space frame which have a mechanic property, a functional property, a aesthetic prioerty and so on, occupies one part of sin structures and after this, the using parts will be extended. But because this structure is made of network by combination of line elements there are many nodes the structural the structural behavior is very complicated and there can be a overall collapse of structure by buckling phenomenon if the external force reaches a limitation. In design for this structure, we must determinate layer by considering above mentioned property first of all. Therefore this study aimed at the comparison and the investigation of mechanical characteristics of single-layer and double-layer cylindrical space frame on views of behavior and buckling by use of rise ratio.

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Flexural behavior of partially-restrained semirigid steel connections

  • Campione, G.;Scibilia, N.
    • Steel and Composite Structures
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    • v.1 no.4
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    • pp.441-458
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    • 2001
  • We analyzed the experimental and theoretical behavior of a particular type of steel joint designed to connect beam to beam and able to transfer both shear forces and bending moments. This joint is characterized by the use of steel plates and bolts enclosed in the width of the beams. The experimental investigation was carried out characterizing the constituent materials and testing in flexure beams constituted by two portions of beams connected in the middle with the joint proposed. Connections having different characteristics in terms of thickness of plates, number and type of bolts were utilized. Flexure tests allow one to determine the loaddeflection curves of the beam tested and the moment-rotation diagrams of the connections, highlighting the strength and the strain capacity of the joints. The proposed analytical model allows one to determine the moment-rotation relationship of the connections, pointing out the influence of the principal geometrical and mechanic characteristics of single constituents on the full properties of the joint.

Development of piezocapacitive thick film strain gage based on ceramic diaphragm (세라믹 다이어프램을 이용한 정전용량형 후막 스트레인 게이지)

  • Lee, Seong-Jae;Park, Ha-Young;Kim, Jung-Ki;Min, Nam-Ki
    • Proceedings of the KIEE Conference
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    • 2003.07c
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    • pp.1529-1531
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    • 2003
  • Thick film mechanical sensors can be categorized into four main areas piezoresistive, piezoelectric, piezocapastive and mechanic tube. In this areas, the thick film strain gage is the earliest example of a primary sensing element based on the substrates. The latest thick film sensor is used various pastes that have been specifically developed for pressure sensor application. The screen printing technique has been used to fabricate the pressure sensors on alumina substrate($Al_2O_3$). Thick film capacitive of strain sensing characteristics are reported and dielectric paste based on (Ti+Ba) materials. The electric property of dielectric paste has been studied and exhibit good properly with good gage factor comparable to piezoresistive strain gage. New piezocapacitive strain sensor was designed and tested. The output of capacitive value was good characteristics.

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A Study on the Characteristics of the Ni base Super Alloy Overlay Layer by Plasma Transferred Arc (PTA) Method (Ni 계 초내열합금의 PTA 오버레이 층 특성에 관한 연구)

  • Kim Young-Sik;Choi Young-Goog;Lee Kwang-Ryeol
    • Journal of Welding and Joining
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    • v.24 no.3
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    • pp.49-54
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    • 2006
  • The Plasma Transferred Arc (PTA) overlaying method is lately introduced as one of the most useful surface modification method of the engine component. In this paper, the characteristics of the Co-base and Ni-base super alloy overlay layers by PTA method were investigated through the metallurgical, abrasive and cavitation erosion test. Experimental results showed that the abrasive wear resistance of the Co-base Stellite 6 overlayer was the most superior and followed in order of Nimonic 80A, Inconel 625 and Inconel 718. However, the cavitation erosion characteristic of the Stellite 6 overlayer was the most inferior and it was better in order of Inconel 625, Inconel 718 and Nimonic 80A.