• Journal of Ocean Engineering and Technology
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• v.34 no.4
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• pp.237-244
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• 2020

In this study, we investigate surge force, heave force, and pitch moment, which are vertical plane hydrodynamics acting on Manta-type unmanned underwater vehicles (UUVs), using a model test and computational fluid dynamics (CFD) simulation. Assessing the maneuvering hydrodynamic characteristic of an underwater glider in the initial design stage is crucial. Although a model test is the best approach for obtaining the maneuvering hydrodynamic derivatives for underwater vehicles, numerical methods, such as Reynolds averaged Navier-Stokes (RANS) equations, have been used owing to their efficiency in terms of time and cost. Therefore, we conducted an RANS-based CFD calculation and a model test for Manta-type UUVs. In addition, we conducted a validation study through a comparison with a model test conducted at a circular water channel (CWC) in Korea Maritime & Ocean University Furthermore, two RANS solvers (Star-CCM+ and OpenFOAM) were used and compared. Finally, the maneuvering hydrodynamic forces obtained from the static drift and resistance tests for a Manta-type UUV were presented.

• Proceedings of the KIEE Conference
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• 2007.04a
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• pp.52-54
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• 2007

Laser wave length can have evaporation effect by absorption because outer skin or tissue of focus is consisted of water almost though absorption of water occurs more than 90% almost in formation thickness of very thin floor. Can operate outer skin, steam by floor and correct incision of formation is available. Suture surgical operation is available to vein or lymph system and surgical operation region can dry and see as eye and radish bleeding surgical operation is available. Specially, stability of tube both end output about pulse by weight very, this research can cause various curative effect because can reduce bulk and control easily current wave style of medical laser using electric power conversion device of high frequency way. If introduce ZVS (Zero Voltage Switching) or ZVZCS (Zero Voltage and Zero Current Switching), is more profitable because can reduce switching damage. Because electric power department of proposed medical laser can do stable soft-switching in wide subordinate extent introducing ZVZCS technique by the first help and control department composes microcontroller, output current waveform user have free form make. Result that experiment because design and manufacture, brought result that improve of 20% than existing equipment, and will be bought to get into superior result if supplement as systematic late.

• Proceedings of the KIEE Conference
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• 2007.04a
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• pp.55-57
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• 2007

$CO_2$ laser sees that is most suitable to get this effect through minimum formation damage and advantage that is root enemy of effect that happen in minimum cellular tissue depth of 0.1mm is stable living body organization or internal organs institution. Formation damage by ten can be related in formation's kind or energy density, length of evaporation time. If shorten evaporation time, surroundings cellular thermal damage 200 - because happen within 400ums laser beam in rain focus sacred ground surroundings cellular, tissue without vitiation me by evaporation Poe of very small floor as is clean steam can. Application is possible to vulva cuticle cousins by a paternal aunt quantity, uterine cancer, cuticle tumor by laser system that $CO_2$ laser gets into standard in obstetrics and gynecology application. Because effect that super pulse output is ten enemies of laser if uniformity one pulse durations are short almost is decreased, most of all pulse module special quality of pulse style $CO_2$ laser for obstetrics and gynecology mode stabilization by weight very, in this research to get into short pulse duration and higher frequency density, do switching by high frequency in DC-DC Converter output DC's ripple high frequency to be changed, high frequency done current ripple amount of condenser for output filter greatly reduce can. Ripple of output approximately to Zero realization applying possible inductor realization through a special quality experiment do.

• Fashion & Textile Research Journal
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• v.3 no.2
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• pp.115-123
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• 2001

The dress and ornaments in the Taijiang were fashionable, which were densely populated with Miao nationality. Women's traditional festive dress in Taijiang included an embroidered blouse and a pleated skirt. The garments are decorated with plenty of ornamental designs. The colours of festive dress were as rich and gorgeous as those of fashinable desses. Embroidery was very popular in Taijiang and its principal feature is embroidery with loose, coloured floss silk. The image of patterns changed ingeniously and colourfully but do harmony. In the using of colour, one kind of the festive dress was in the main red, which means a bright dress. The colour of another kind of festive dress was blue, which means a dark dress. There were many kinds of silver ornaments for women. Taijiang was most outstanding in this respect. The great variety of silver ornaments was a unique feature of women's dress in Taijiang.

• Fashion & Textile Research Journal
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• v.6 no.3
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• pp.307-313
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• 2004

The Purpose of this study is to investigated characteristics of many pleated skirt of Miao women's Guizhou province in China. The method of this study is referd to sundry recordes and demonstrated traditional clothing of several region in Guizhou province. The most important characteristic of the costume of the Miao is the many pleated skirt, worn by most but not all groups. Pleats are pulled into place with a sharp pointed instrument and sprinkled constantly with starch. The length of the pleated skirt depends on the group. The long skirts reach to the ankle, the medium-sized to the shank and the short ones not below the knee. The design of the pleated skirt is simple but most pleated skirt ornamented with fine, cross-stiched or batic designs of geometrical figures. The figures decorated on the pleated skirt has been handed down with little change from generation to generation and has become an important mark of Miao women's each area. Seeing the many pleated skirt of Miaos investigated in these several respects by the standard of contemporary beauty, it is thought that it has the infinite possibility of being used in contemporary fashion design on account of the characteristics of almost perfect costume.

• Biomedical Science Letters
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• v.21 no.3
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• pp.144-151
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• 2015

Development of hypertension is caused by complex contributions of genetic and environmental factors. In spite of the increased understanding of hypertension, genetic factors that contribute to hypertension largely remain elusive. ANO1 gene encoding a calcium-activated chloride channel has recently been reported to affect spontaneous hypertension in the animal model. In this report, we investigated possible association of the ANO1 gene with hypertension in human with ANO1 variants found in Korean population. Fourteen polymorphisms of ANO1 gene were analyzed to be associated with hypertension. Interestingly, the six polymorphisms that showed statistically significant association were all the male subjects. The highest significant SNP was rs7127129 (OR=1.14, CI: 1.02~1.28, additive P=0.023; OR=1.24, CI: 1.03~1.49, dominant P=0.025), and other five SNPs (rs2509153, rs11235473, rs10751200, rs10898827 and rs10899928) were also statistically associated with hypertension. Consequently, we found that the genetic variants of ANO1 present statistically significant associations with hypertension in human, especially, in male. To the best of our knowledge, this study is the first report describing association of genetic polymorphisms of ANO1 with hypertension in human.

• Journal of Korean Physical Therapy Science
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• v.19 no.1
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• pp.63-69
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• 2012

Background : The purpose of this study was to investigate the frequency domain characteristics of ground reaction forces during quiet standing on inclined surfaces twenty healthy individuals(10 elderly women $68.78{\pm}3.29$ years and 10 young women $20.90{\pm}0.74$ years) participated. Methods : Subjects stood in quiet stance over a force platform positioned in one of three different fixed positions: flat, down and up. Healthy participants completed with eyes open for 120 s trials. Evaluation of postural control were generally based on the interpretation of center of pressure(COP) time series. The COP have been determined using an experimental setup with 3D kinematic and the ground reaction force system. All the data were expressed means and standard deviation by using SAS package program. Results : SEF 50% were not significant in AP and ML direction according to surface slope of both groups. SEF 95% were showed highest frequency in AP direction on down slope of both groups. MEF were not significant all direction according to surface slopes of elderly women. There was no difference between young and elderly women. Conclusion : Elderly women used to ankle strategy during a quiet stance according to COP perturbation of AP direction showed more expanded than ML direction. SEF 95% were showed highest frequency on down slope in elderly women who showed more used ankle strategy for postural control on down slope.

• Journal of International Academy of Physical Therapy Research
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• v.5 no.2
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• pp.718-722
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• 2014

The cerebellum is known to control balance, equilibrium, and muscle tone. If the cerebellum becomes damaged, the body is unable to retain its balancing functions or involuntary muscle movement. This is why, in stroke patients, there is a high risk of functional disability, as well as a myriad of other disabilities secondary to stroke. Ischemia was induced in SD mice by occluding the common carotid artery for 5 minutes, after which blood was reperfused. Needle electrode electrical stimulation(NEES) was applied to acupuncture points, at 12, 24, and 48 hours post-ischemia on the joksamri. Protein expression was investigated through caspase-3 antibody immuno-reactive cells in the cerebral nerve cells and Western blotting. The results were as follows: The number of caspase-3 reactive cells in the corpus cerebellum 12 and 24 hours post-ischemia was significantly (p<.05) smaller in the NEES group compared to the GI group. caspase-3 expression 12 and 24 hours post-ischemia was significantly(p<.05) smaller in the NEES group compared to the GI group. Based on these results, NEES seems to have a significant effect on Caspase-3 in the cerebellum in an ischemic state at 12 and 24 hours post ischemia, NEES delays the occurrence of early stage apoptosis-inducing Caspase-3, delaying and inhibiting apoptosis. Further systematic studies will have to be conducted in relation to the application of this study's results on stroke patients.

• Journal of Fashion Business
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• v.3 no.3
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• pp.49-57
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• 1999

In this study, the researcher studied the historical background and the traditional culture about dress of Bouyei People of Guizhou Province. The resuits of the study ara as follows. 1. Women's dress and adorment can be categorized into three styles. In the Zhenning, Guanling and Puding regions and northwestern areas of Guizhou Province, women usually wear blouses with overlapping necks, batik pleated skirts and long aprons. They also wear embroidered kerchiefs or turbans. In the suburbs of Guiyand City and Southwestern Guizhou Province, women like to wear blouses with buttons arranged diagonally on the front, trousers, blue or black and white check cloth kerchiefs. In the Luoping region, women wear blouses with loose sleeves and buttons arranged diagonally on the front and loose-legged trousers. 2. Men usually wear shirts with buttons down the front or arranged on the front, trousers and calottes. 3. Most of their dress materials are white and coloured handwoven, tie-dyed or batik cloth. The exquisite technique of batik and tie-dyeing has a long history, which began to become prevalent in the Song Dynasty. 4. Now, people use all kinds of techniques to make their dress and adornment, including batik, tie-dyeing, cross-stitch, brocade and embroidery, which reflect their peculiar aesthetic temperament.

• Applied Biological Chemistry
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• v.40 no.2
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• pp.101-106
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• 1997

A screening was performed to isolate the cellulose-producing microorganisms from vinegar in Korea. The isolated strain was identified as Acetobacter sp. with respect to physiological and biochemical characteristics and designated as Acetobacter CBI-2. Cellulose production of Acetobacter CBI-2 was equal with the well known cellulose-producing bacteria, A. xylinum. The result of separation on thin layer chromatography(TLC) was consistent with the degradation product of native cellulose. The presence of genes required for the cellulose biosynthesis in Acetobacter CBI-2 was confirmed by Southern hybridization.