• Proceedings of the KSME Conference
• /
• 2000.04b
• /
• pp.514-519
• /
• 2000

Recently a considerable interest is being concentrated on industrial applications of supersonic Coanda wall jets, but the flow physics are not still understood well. It is of practical importance to evaluate the effectiveness of supersonic Coanda wall jet devices fer such industrial purposes. In the present work, experiments and computations were performed to Set a better understanding of the supersonic Coanda jet physics. The experiments were made using a small blow-down wind tunnel. The operating pressure ratio and the Coanda surface configuration were changed to investigate their influences on the wall jet flows. Two-dimensional Navier-Stokes computations were performed using a TVD finite volume scheme to effectively capture the important wave structures of supersonic Coanda jet flows. Both experimental and computational results showed several important hysterical features of the supersonic Coanda wall jets; the attachment and detachment of supersonic Coanda jet were strongly dependent on the change processes of the operating pressure ratio and the detailed flow configuration.

• Proceedings of the KSME Conference
• /
• 2003.11a
• /
• pp.792-797
• /
• 2003

A helical vane is applied to reduce the magnitude of the impulse wave discharged from the exit of a duct. A shock tube with an open end is used to investigate the effect of the helical vanes on the impulse wave magnitude. Four different types of helical vanes are installed into the low-pressure tube of shock tube. The magnitude of the incident shock wave is varied below 1.25, and the magnitude of impulse wave is measured using a pressure transducer mounted on a wedge probe. Instant images of the impulse wave are obtained by means of the Schlieren optical method. The present experimental results show that the helical vane considerably reduces the magnitude of the impulse wave and the vane effects are more remarkable for stronger incident shock wave.

• The Korean Journal of Pain
• /
• v.7 no.2
• /
• pp.170-174
• /
• 1994

Stellate Ganglion (SG) of l0 cadavers were removed during autopsy at Saga Medical College. Length, width, thickness, shape and location of SG were measured before formalin fixation. The results are as follows; 1) Length, width, thickness of SG were 22.33+5.23mm, 9.34+2.23mm and 5.03+1.19mm in right respectively, and 29.67+10.56 mm, 11.29+3.20mm and 5.51+1.09mm respectively in left. 2) Weight of right SG is 0.69+0.25 gm and weight of left SG is 1.04+0.63 gm. 3) Shape of SG is oval and snowman type. 4) Location of SG is variably located from the base of 7th cervical vertebra to first thoracic vertebra.

• Journal of Korean Society of Rural Planning
• /
• v.19 no.4
• /
• pp.161-175
• /
• 2013

The paradigm of agricultural and rural policies has shifted from food production and profitability to the competitiveness of rural areas through the discovery, grants and use of the agricultural and rural resources' potential value. This study aims to discover the value of the agriculture and rural resources and intend to offer the method for discovering resources and its value as the agricultural heritage. To this end, the functions and values of the agricultural and rural resource, the criteria and procedure of Globally and Nationally Important Agricultural Heritage System which is leading institutions were investigated. The policy implications were proposed in the process and series of steps of discovery and evaluation of the pluralistic value of the agriculture and rural resources and agricultural heritage designation and management.

• 한국가시화정보학회:학술대회논문집
• /
• 2004.12a
• /
• pp.157-168
• /
• 2004

The effects of pulsation in a pulsating flow through a rectangular channel have been investigated by Particle Image Velocimetry in both laminar and turbulent flow conditions. PIV results on a square channel (aspect ratio:1) have been reported on the cases of Reynolds number Re=80 in laminar and Re=8800 in turbulent region. For both in the laminar and turbulent regions, the influence of the pulsation onto the magnitude changes of the average velocity was negligible. In the turbulent region, the magnitude profiles of the stream-wise pulsating component obtained by the theoretical analysis based on the Stokes analogy were slightly different from the experimental ones due to the influence of the turbulent viscosities onto the pulsating flows.

• Proceedings of the Korean Society of Toxicology Conference
• /
• 2001.10a
• /
• pp.22-23
• /
• 2001

Based on the success of green tea as a cancer preventive, herbal medicines are now also attracting attention as potential sources of cancer preventive agents. Using inhibition of TNF-$\alpha$ release assay, we studied Acer nikoense (Megusurino-ki in Japanese): Inhibitory potential was found in the leaf extract, and the main active constituents were identified as geraniin and corilagin. The $IC_{50}$/ values for TNF-$\alpha$ release inhibition were 43 $\mu$M for geraniin and 76 $\mu$M for corilagin, whereas that for (-)-epigallocatechin gallate (EGCG)was 26 $\mu$M.(omitted)

• Structural Engineering and Mechanics
• /
• v.3 no.5
• /
• pp.429-443
• /
• 1995

The deformational response of plastic board drains installed to accelerate consolidation of soft soils, is examined as a problem of downdrag. The drain is modelled as a beam-column in which the axial load increases nonlinearly with depth. The soil response is represented by the Winkler medium whose coefficient of subgrade modulus increases linearly with depth. The governing equations for the drain-soil system are derived and solved as an eigenvalue problem. The critical buckling loads and the shape of the drain are obtained as functions of the normalized subgrade modulus of the soil at the top, the parameters signifying the variation of axial load along the length of the drain and the increase of subgrade modulus with depth. The derived deformed shapes of the drain are consistent with the observed ones.

• Proceedings of the Korea Contents Association Conference
• /
• 2012.05a
• /
• pp.193-194
• /
• 2012

Most of the Historic Preservation Areas are very weak to fire disasters. The aim of this study is to build a proposal-scheme for evacuation routes planning at a large-scale disaster in a historic preservation area. The study area is a preservation area called "Hizen-Hama-Shuku" which has many straw-roofed wooden houses in Kashima city, Japan. To achieve this aim, outline of the scheme is discussed. The proposal-scheme of evacuation routes consists of objectives to propose, target time to evacuate for the refuge place, evaluation method, and procedures. The existing condition and the measures are evaluated using the software "SimTread".

• Proceedings of the Korea Contents Association Conference
• /
• 2016.05a
• /
• pp.255-256
• /
• 2016

In this paper, we analyze the operations and/or status of our structure which builds the management structure measuring integrated monitoring system based on linked open data in a short term or long term bases. We have applied a novel analyzing method of linked open data to expect what movements can be occurred in the structure, and we improve the monitoring system using an integrated design to solve the drawbacks of conventional types of monitoring. And collecting data through cloud and their reliability can be proved by evaluation of soundness of data amount and their confidence.

• Proceedings of the Korea Contents Association Conference
• /
• 2016.05a
• /
• pp.257-258
• /
• 2016

In my paper, an evaluation method on naturalness and urbanness characterizations of animation image is proposed. In contrast to the prior works, we intend to give the exact degree of naturalness and urbanness by combining the low-level visual feature-based schemes with the biological visual schemes. In our method, four descriptors are extracted and pseudoinverse is adopted. By this method, we can experiment on the exact degree of naturalness and urbanness with satisfactory results.