• The Korea Journal of Herbology
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• v.21 no.4
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• pp.43-49
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• 2006

Objectives : The purpose of this study is to determine the original source of Gwackhyang(藿香) newly. Methods : Compare the growing district, figure and etc. of Gwackhyang included in the books on herbal medicine with those of present. Results : 1. The growing district of Gwackhyang is south of China or southern place than China. 2. In the picture of the leaf of Gwackhyang, its end is round and it is similar to Mori folium or the leaf of Solanum melongena. 3. We can propagate it by planting a piece of stem. 4. At the Dynasty of the Sejong king, japan sent it 18 times for diplomacy present, and according to Sejongsillockzirizi(世宗實錄地理志), it was planted for the test one time. 5. Baechohyang, another name of Gwackhyang, is rhizome and root of Anisochilus carnosus according to Bonchogangmok(本草綱目). Conclusion : Provide a basis for these results, Gwackhyang in the books on herbal medicine means Pogostemon cablin. It is a mistake to use Agastache rugosa in GwackhyangJeonggisan(震香正氣散) etc. in Korea.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2000.06a
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• pp.291-298
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• 2000

This paper describes a theoretical and experimental investigation into an active vibration isolation system in which four electromagnetic actuators are installed in parallel with each of four passive mounts placed between a piece of equipment and a vibrating base structure. Decentralised velocity feedback control is employed, where each actuator is operated independently by feeding back the absolute equipment velocity at the same location. Although one end of each actuator acts at the sensor positions on the equipment, the control system is not collocated because of the reactive forces acting on the flexible base structure, whose dynamics are strongly coupled with the mounted equipment. Isolation of low frequency vibration is considered where the equipment can be modelled as a rigid body and the mounts as lumped parameter springs and dampers. Control mechanisms are discussed, and some experimental and simulation results are reported.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2000.05a
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• pp.708-713
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• 2000

A research on the AFC(Auto Feedrate Control) by a fuzzy controller using a tool dynamometer and motor currents was conducted. For simulations, cutting dynamics of end-milling process was modeled by geometric relationship between tool and work-piece. The fuzzy logic controller was employed to track the desired cutting force and showed good performance in simulations and several experiments. The spindle motor currents was modeled to estimate cutting force and successfully used for the AFC.

• Journal of Chest Surgery
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• v.28 no.2
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• pp.183-187
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• 1995

This is a report of successful management of a patient with complicated native valvular endocarditis. Initially stable patient showed sudden collapse at the end of 4th week of antibiotics coverage. Echocardiography revealed that previous vegetation at the Aorto-mitral Fibrous Skeleton[AMFS developed into a false aneurysm, perforated to left atrium and caused fistulous communication between left ventricle and left atrium. Extensive debridement was performed including part of the ascending aorta, aortic cusps, the AMFS, anterior mitral cusp and roof of the left atrium. Reconstruction of the AMFS with tailored single piece of autologous pericardium enabled the implantation of mechanical valves at the aortic and the mitral position. Ascending aorta and roof of the left atrium were repaired with autologous pulmonary artery patch graft and another autologous pericardial patch. The patient was discharged on postoperative 16th day and followed - up till now without any residuae or sequelae.

• Proceedings of the Korean Institute of Building Construction Conference
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• v.y2004m10
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• pp.39-44
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• 2004

A heat and room temperature construction method of asphalt have been mainly applying to rooftop waterproofing in concrete structure, and the rest construction method are sheet, membrane and mortar waterproofing construction method. In particular, joint method in sheet waterproof method is as overlap joint which on being reinforced with fiber and tape, have been applying for job site to mechanical fix using protection disk and anchorage and metal ironwork on the end of sheet. These construction method cause cutting off joint of sheet as behavior of structure according to repairs of sheet itself and thermal conduct, outdoor air environment. In conclusion, we analyzed and examined the application of various sheets and piece ashes about superior 'I' joint which divide from one and the other sheet and progressed about joint construction method of fixing method for overlap.

• Journal of the Korea Furniture Society
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• v.13 no.1
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• pp.9-17
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• 2002

Laminated lumber is an engineered wood products using stress rated, seasoned and selected lumber. Each piece of lumber is graded, and then end jointed to produce the required length. This study was carried out to investigate the possibility of wooden artifacts with laminated lumber. It is expected through this research that wooden artifacts, which have originality and local character, can be developed by making design of wooden artifacts through the use of plentiful resources around the local area. A development of new design products, an improvement of distributive structure and the achievement of international competitiveness will contribute to develop the industrial artifacts art in Korea. And, it is necessary to develop a corporation system between industrial craft companies and universities.

• The Research Journal of the Costume Culture
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• v.7 no.4
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• pp.69-79
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• 1999

The study has the aim to now the significance of hippie dress and hairstyle and to understand the influence upon them in 1990\`. The results of this study are as follow. First, the results of the significance of hippie dress and hairstyle in 1960\` which and analized by the basis of pierce\`s semiotic theory showed social resistence, piece and anti-war, psychodelic, ethnic and nostalgia, and individualism. Second, studying the character of the end of 1990\` when hippie dress and hairstyle reappeared through related the papers, magazine, and articles, we could get the phenomenon of pastiche, postmodernism which had excepted the spiritual significance of hippie in 1960\`.

• Advances in concrete construction
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• v.14 no.5
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• pp.309-315
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• 2022

This paper depicts the diagram of cylindrical shells as an essential idea. It centers around an outline of exploration and use of cylindrical shell in expansive current circumstance. In view of investigation of the current and prospect of model as a piece of present exploration work, a straightforward contextual analysis is examined with Love's shell theory based on Galerkin's method. The cylindrical shells are attached from one end of the cylindrical shells. The frequencies of ring support shells are investigated against the half axial wave mode. The frequencies increase on increasing the half axial wave mode. Also, the frequencies are downsized with ring supports. The software MATLAB is preferred to others because in this software computing coding is very easy to do. Just single command 'eig' furnishes shell frequencies and mode shapes by calculating eigenvalues and eigenvectors respectively. The shell vibration frequencies for cylindrical shells are compared with those results found in the open literature.

• The Journal of Advanced Prosthodontics
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• v.12 no.3
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• pp.167-172
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• 2020

PURPOSE. The aim of the present study was to investigate the passive fit of metal substructure after repetitive firing processes in implant-supposed prosthesis. MATERIALS AND METHODS. Five implants (4 mm diameter and 10 mm length) were placed into the resin-based mandibular model and 1-piece of screw-retained metal substructure was produced with the direct metal laser sintering (DMSL) method using Co-Cr compound (n = 10). The distance between the marked points on the multiunit supports and the marginal end of the substructure was measured using a scanning electron microscope (SEM) at each stage (metal, opaque, dentin, and glaze). 15 measurements were taken from each prosthesis, and 150 measurements from 10 samples were obtained. In total, 600 measurements were carried out at 4 stages. One-way ANOVA test was used for statistical evaluation of the data. RESULTS. When the obtained marginal range values were examined, differences between groups were found to be statistically significant (P<.001). The lowest values were found in the metal stage (172.4 ± 76.5 ㎛) and the highest values (238.03 ± 118.92 ㎛) were determined after glaze application. When the interval values for groups are compared with pairs, the differences between metal with dentin, metal with glaze, opaque with dentin, opaque with glaze, and dentin with glaze were found to be significant (P<.05), whereas the difference between opaque with metal was found to be insignificant (P=.992). CONCLUSION. Passive fit of 1-piece designed implant-retained fixed prosthesis that is supported by multiple implants is negatively affected by repetitive firing processes.

• Applied Microscopy
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• v.41 no.2
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• pp.117-122
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• 2011

Sperm morphology of Pipistrellus savii velox was examined by transmission electron microscope. The sperm head of P. savii velox was bullet in shape. The sperm head was 3.1 ${\mu}m$ in length, whose posterior 3.0 ${\mu}m$ was occupied by a nucleus with 1.8 ${\mu}m$ in width. The segmented columns were about 14~15 in number. The total number of mitochondrial gyres was 57. Number of 1, 5, and 6 of the outer dense fibers were larger than the others. A fibrous sheath and longitudinal column of the principal piece were evidence, but the fibrous sheath was not seen at the end piece. In the present study, the length of the sperm head of P. savii velox were very shorter than those of other bats.