• Textile Coloration and Finishing
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• v.10 no.5
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• pp.19-23
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• 1998

In this study, Cellulose-Poly(Ethylene-Co-Vinyl Alcohol) (EVOH) fibers from MMNO(N-me-thylmorpholine-N-oxide) /water/cellulose/EVOH were prepared according to changes of EVOH content(wt％), which is main factors to dry-jet wet spinning. The mechanical properties and morphology of produced fibers were investigated. The resultant fibers had tensile strength of 3.7∼4.5g/d, elongation of 3.3∼7.5% and exhibited lower density than the density of pure cellulose fiber.

• Proceedings of the Korea Concrete Institute Conference
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• 2002.05a
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• pp.897-902
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• 2002

The failure of flat plate connection is successive failure process accompanying with stress redistribution, hence it is necessary to compute the contributions of each resistance components at ultimate state. In the present study, the interactions of resultant forces at each faces of connection, i.e. shear, bending moment and torsional moment are considered in the assessment of strength of slab. As a result the strength prediction model for connection is made up as combination of bending resistance, shear resistance and torsional resistance. The proposed method is verified by the experimental data and numerical data of continuous slabs.

• Proceedings of the KIEE Conference
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• 1992.07b
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• pp.659-661
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• 1992

This paper deals with aerodynamic problems of the rotating blade of Darrieus wind turbine and its instantaneous torque. The instantaneous torque varying with the rotating angle of blade was obtained through resultant wind velocity, angle of attack, lift and drag coefficient. These are obtained from a given wing section, size and wind velocity.

• Proceedings of the Korean Society of Machine Tool Engineers Conference
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• 2001.10a
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• pp.14-18
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• 2001

Rise in cutting force causes tool damage and worsens product quality resulting in machining accuracy deterioration. Especially, fragile material cutting brings about breakage of material and worsens product surface quality. In this study, we trace the locus of cutting force and examine the machined surface corresponding to the cutting force loci. and build up a monitoring system for deciding normal operation or not of cutting process.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2002.11b
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• pp.388-392
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• 2002

Fault tolerant control algorithm for heteropolar magnetic bearings are presented. This fault tolerant control utilizes grouping of currents as C-cores in order to isolate magnetic fluxes. Hardware requirements to maintain fault tolerant control are reduced since decoupling chokes are not required in this control scheme. The currents supplied to each pole are redistributed, if some coils fail suddenly, such that the resultant magnetic forces should remain invariant through coil failure events. Load capacity before magnetic saturation is reduced through coil failures while maintaining the same magnetic forces before and after failure.

• Journal of Microbiology and Biotechnology
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• v.4 no.3
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• pp.233-234
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• 1994

A general improved procedure for preparation of a cosmid library based on the use of a pBLcosT vectorwas described. The vector was modified to contain 2 tandem Xcml sites and was digested with Xcml to yield 2 terminal 3 T overhangs, capable of ligation with the insert that contains 2 terminal complementary 3 A overhangs. The resultant ligation mixture was packaged and a cosmid library in Escherichia coli was established.

• Journal of Biomedical Engineering Research
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• v.12 no.1
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• pp.43-48
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• 1991

As the computerized methods and equipments In nuclear medicine imaging increases, quantitative information is needed on the single photon emission computed tomographic Images as well as on the conventional nuclear medicine images. In this paper, the authors investigated the effect of several clinician - friendly reconstrution filters on the resultant transverse slices of backprojected Profiles of radioisotope distribution from the Quantitative point of view, and reduced the filter parameters such as cutoff frequency and order of filter which are neces mary to minimize the quantification error using computer-generated phantoms.

• Journal of Biomedical Engineering Research
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• v.3 no.1
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• pp.51-54
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• 1982

As the computerized methods and equipments in nuclear medicine imaging increases, quantitative information is needed on the single photon emission computed tomographic images as well as on the conventional nuclear medicine images. In this paper, the authors investigated the effect of several clinician - friendly reconstrution filters on the resultant transverse slices of backprojected profiles of radioisotope distribution from the quantitative point of view, and reduced the filter Parameters such as cutoff frequency and order of filter which are necessary to minimize the quantification error using computer -generated phantoms.

• KCID journal
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• v.4 no.1
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• pp.22-33
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• 1997

Seadike construction in order to develope the tidal land is used to significantly affect the water circulation system not only resulting in changes of coastal geometry but causing environmental problems. Therefore it is necessary that resultant effects of

• Bulletin of the Korean Mathematical Society
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• v.50 no.5
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• pp.1599-1622
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• 2013

We show many examples of curves on the unit 2-sphere $S^2(1)$ in $\mathbb{R}^3$ and the unit 3-sphere $S^3(1)$ in $\mathbb{R}^4$. We study whether its curves are Bertrand curves or spherical Bertrand curves and provide some examples illustrating the resultant curves.