• Journal of Korean Library and Information Science Society
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• v.8
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• pp.31-68
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• 1981

This study is a first part of the surrey on the bibliographic and subject information activities of Korean libraries. The 35 University libraries which held over 10,000 volumes of their collections and located in Seoul City area, are surveyed through the questionnaires. The 92 kinds of published bibliographies and catalogs are analysed. Subject-bibliographic activities of the university libraries are analysed by the answers of 9 items of the questionnaire. The librarians' opinions on the automation of bibliographic activities are also analysed.

• Communications of the Korean Mathematical Society
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• v.25 no.1
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• pp.83-96
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• 2010

Let ${\mathbb{H}}^{2n+1}$ be the (2n+1)-dimensional Heisenberg group equipped with a left-invariant metric. In this paper we study the Gaussian curvatures of the geodesic spheres and the volumes of geodesic balls in ${\mathbb{H}}^{2n+1}$.

• Bulletin of the Korean Mathematical Society
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• v.51 no.1
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• pp.129-137
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• 2014

In this paper, a new proof of the following result is given: The product of the volumes of an origin-symmetric convex bodies K in $\mathbb{R}^2$ and of its polar body is minimal if and only if K is a parallelogram.

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.17 no.6
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• pp.686-695
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• 1988

An algorithm and a computer program were developed for the operational simulation of office building cooling system. Using this computer program, the following results were obtained. ${\bullet}$ There is a critical number of coil rows in AHU with which the cooling system can be operated in maximum efficiency. ${\bullet}$ Energy conservation can be achieved in an office building through TAB(Testing Adjusting and Balancing) of zone air volumes.

• Korean Journal of Computational Design and Engineering
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• v.2 no.1
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• pp.28-34
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• 1997

A swept volume is a useful tool for solving various types of interference problems. Previous works have concentrated on sweeping an object along an arbitrary path, that results in complex algorithms. This paper concerns the volume swept by translating an object along a linear path. After analyzing the structure of the swept volume, we present an incremental algorithm for constructing a swept volume. Our algorithm takes O(n/sup 2/ *.alpha.(n)+T/sub c/) time where n is the number of vertices in the original object and T/sub c/ is time for handling face cycles.

• Culinary science and hospitality research
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• v.7 no.1
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• pp.135-145
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• 2001

This study was undertaken to analyze chemical composition, minerals and texture characteristics of Pongnipgangjung in various volumes of adding Pongnip powder. With increasing Pongnip powder level, moisture, total nitrogen, crude protein, crude fat and crude ash contents were significantly increased. Ca, P, K and Mg contents of Pongnip powder 1%, 3%, 4% was higher than Pongnip flour free group. According to rheometer evaluatuion, Pongnipgangjung added Pongnip powder 1% showed higher level of hardness than Pongnip powder 3%, 4% and free group. In sensory evaluation, the results of preference are in the following order Pongnipgangjung added Pongnip powder 1%, 3%, 4% and free group.

• 제어로봇시스템학회:학술대회논문집
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• 1989.10a
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• pp.118-123
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• 1989

This work deals with fast-to-compute global control laws for time-optimal motion of strongly nonlinear dynamic systems like resolute robots. the theory of cell-to-cell mappings for dynamical systems offer the possibility of doing the vast majority of the control law computation offline in case of time optimization with constrained inputs. These cells result from a coarse discretization of likely swaths of state space into a set of nonuniform, contiguous volumes of relatively simple shapes. Once the cells have been designed, the bang-bang schedules for the inputs are determined for all likely starting cells and terminating cells. the resulting control law is an open-loop optimal control law with feedback monitoring and correction.

• Transactions of the Korean Society of Mechanical Engineers
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• v.19 no.2
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• pp.338-347
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• 1995

Equations of motion and continuity equations of a hydraulic breaker are derived. Hydraulic pressures are defined with 6 state variables corresponding to 6 control volumes. Impact analysis procedure of the piston and chisel is developed based on the finite element nodal displacement description. Computer simulation is performed with given design parameters and the results are compared with experimental results.

• Proceedings of the Korean Society of Medical Physics Conference
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• 2002.09a
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• pp.231-232
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• 2002

We have been developing microvolume LET counter in order to measure the three-dimensional LET distribution of the therapeutic heavy ion radiation volumes in the water phantom. With help of the technique of cathode induced carhge readout, this detector has a rectangular (box-shape) sensitive volume of which size is about 1 mm$^2$ and 2mm (depth).

• Proceedings of the Korean Society of Machine Tool Engineers Conference
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• 1996.10a
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• pp.58-63
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• 1996

A study is drawn up its result's tables and graphs by measuring tools(outside micrometer cylinder gauge and dial caliper gauge) on the difference of diameter volumes from before-discharge and after-discharge under 52 Kind's experimental condition by cupper and graphite electrode of CNC EDM. The EDM is attached with A.V.R. and memory scope for keep up accuracy and the fixed table of work piece is used in order to eliminate the noise by the internal resistance of it and forcing to eradicate the discharge liquid. It is analyzed cutting conditions to compare its wave value and pulse time.(Ton Toff) through voltage and current for decreasing working error.