• Proceedings of the Korea Concrete Institute Conference
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• 1998.04a
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• pp.83-88
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• 1998

II-anhydrite, slag, and fly ash produced as industrial by-product were reutilized for the manufacture of high strength admixtures for cement and concrete. The effects of these admixtures on the compressive strength of cement mortar and concrete were examined with those of domestic admixture. At the condition mortar and concrete. Especially, adding of II-anhydrite was very effective for the increasing of compressive strength. Therefore it is possible that these admixture as a high strength admixture apply to cement and concrete.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1997.10a
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• pp.145-149
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• 1997

STEP AP224 includes the information of machining feature and tolerances. Machining features are machined from raw material. Tolerance constrain feasible methods of manufacture, strongly influence the cost of manufacture. And tolerances influence the machining process. We need to decide the precedence between features .tool radius and tool direction for minimum tool changes. This paper deals with the method of decision of precedence between features and process parameters using feature information and tolerances in STEP AP224.

• Proceedings of the KWS Conference
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• 2004.05a
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• pp.115-117
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• 2004

Nd:YAG laser welding system was used to manufacture instrumented irradiation fuel. The optimal condition of zircaloy-4 seal tube is charge voltage 180V and pulse per energy 51. We got good welding result in charge voltage 400V, pulse width 7ms, pulse frequency 5 in zircaloy-4 endcap welding.

• Proceedings of the KIEE Conference
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• 2004.10a
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• pp.15-17
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• 2004

This paper deals with design and manufacture of rotational round plate type Permanent magnet linear synchronous motor. The magnetic flux density and thrust force characteristics is calculated by using analytical method and 2-D finite element analysis.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 1999.05a
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• pp.201-204
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• 1999

Polarization mode dispersion (PMD) restrict the bend-width of single mode optical filer, and it is important parameter in the optical fiber having long-length. Although fiber has perfect circular symmetry, fiber bending, twisting and laws governing manufacture cause additional Polarization mode dispersion. The effect of polarization mode dispersion in general single mode fiber of long length is discussed in this paper. Measurement of PMD with random mode coupling were conducted in two kind of fibers using different laws governing manufacture and interferometric method.

• Proceedings of the Korea Concrete Institute Conference
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• 1991.10a
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• pp.30-33
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• 1991

To reinforce the foundation of building, the spun concrete pile is mostly used with consider the strength, economiability, durability, and etoetera. So, this study is designed for analyze the compressive strength of centryfugal manufacture concrete than that of normal concrete, and is aimed for presenting the reference data to the practical use of pile manufacture.

• The Journal of the Korean dental association
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• v.57 no.3
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• pp.169-174
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• 2019

The rapid evolution of CAD/CAM (Computer Aided Design / Computer Aided Manufacture) led to a dramatic impact on all disciplines of dentistry especially in the fields of prosthodontics and restorative dentistry. This article is to examine the history, advantages & disadvantages and some clinical considerations of CAD/CAM restoration.

• The monthly packaging world
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• s.89
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• pp.109-111
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• 2000

• Journal of the East Asian Society of Dietary Life
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• v.16 no.6
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• pp.731-739
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• 2006

The text of 'Jeungbosallimgyeongjae' was reviewed to study the manufacture of vinegar and to investigate the changes made to the manufacturing process over time, other works such as 'Eumsigdimibang(1670s)', 'Sallimgyeongjae(1715)', 'Gyuhapchongseo(1815)', 'Juchan(1800년대경)' and 'Chosun-mussangsinsikyorijaebeop(1930)', 'Chosun-eumsikmandeneubeop(1946)' were compared. In both 'Eumsigdimibang', and 'Sallimgyeongjae' there are only three statements on vinegar manufacturing theory. For 'Sallimgyeongjae' these statesments are recorded specifically in the 'Chison' section. This book contains the following topics: the proper number of days for vinegar fermentation vinegar storage theory, how to maintain the vinegar in the pot, and nine vinegar manufacturing theories. 'Gyuhapchongseo' discusses the proper or improper number of days to ferment vinegar, and offers four general theories on vinegar manufacture. 'Ju-Chan' is a book of recipes from the latter era of the Chosun Dynasty. There are three statesments on 'yangchobang' recorded in this book. 'Chosun-mussangsinsikyorijaebeop' contains a general summary on vinegar that includes the theory of vinegar production, the right number of days for fermenting vinegar, clues for maintaining the vinegar in the pot, the method for making vinegar from spoiled alcohol, and finally, how to keep vinegar from molding The book also includes 11 statesments on the theory of vinegar manufacture. In 'Chosun-eumsikmandeneubeop', there are two statesments on vinegar manufacturing theory recorded. To study the use of vinegar in cooking as well as the change in manufacturing theories over time, we selected 'Eumsigdimibang', 'Sallimgyeongjae', 'Gyuhapchongseo', 'Chosun-mussangsinsikyorijaebeop' for a comparative analysis with the book 'Jeungbosallimgyeongje'. From this comparison of the texts we were able to learn the scientific nature of traditional foods. In addition, current vinegar manufacturing practices are changing the originally enjoyed flavors ghat are found with traditional vinegars. By the investigation of historic recipe book 'Ju-Chan,' and given the regular use of vinegar on cooking, we have found the means to reproduce the relished tastes of the past.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.3
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• pp.1302-1307
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• 2011

The Spiral coil is made considering primary, secondary side coil inductance, turn number, size, thickness, and shielding area with the litz wire-type in case of manufacturing a coil, and at this time, the semi-automation winding machine is used. When deciding on primary and secondary side coil specification and manufacturing a coil, the spiral coil of a specification varied in the various litz wire of a specification is required, and at this time, a difficulty is generated by the manufacture cost, period which during, and failure the manufacture is generated in the coil sample making. A difficulty is in the desired coil quality control of a specification. Since improving the rectifier of the secondary side in order to improve this kind of problem, the range of the coil design and the during the manufacture, various coil manufacture specifications can be comprehensively made.