• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2004.10a
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• pp.280-283
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• 2004

Micro-lens patterned micro-mold fabrication method for Light Guiding Plate(LGP), kernel part of LCD-BLU(Back Light Unit), was presented. Instead of erosion dot pattern for LGP optical design, micro-lens pattern, fabricated by LIGA-reflow process, was applied. Optical pattern design method was also developed not only for negative pattern LGP, but also positive pattern LGP. During injection molding process, experimental study was conducted to improve replication quality and brightness of ${\sim}50um$ micro-lens pattern mold. The effect of mold temperature for the replication quality of micro-lens array was studied.

• The Journal of Korean Medicine
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• v.16 no.1 s.29
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• pp.71-95
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• 1995

To be helpful to the treatment of pulmonary cancer with oriental medicine, we got clinical reports together and analyzed the data. The results were obtained as follows: 1. The treating methods could be summarized as three methods that were reinforcing vital energy, eliminating harmful Qi, and reinforcing vital energy with eliminating harmful Qi. The methods of reinforcing vital energy were supplementing Qi & Yin, increasing pahological heat & reinforcing kidney, augmenting Qi & blood, supplementing vital energy and strengthening fundermental energy, reinforcing spleen and increasing Qi, lubricate Yin and lung, and the other methods of eliminating harmful Qi were transforming pathological fluid and softening, clarifying heat and eliminating poison, dipersing lung and softening, toxicding and softening, guiding Qi and activating blood, clarifying heat and dispersing lung, guiding Qi and counteracting stress etc., and the methods of supplementing vital energy with eliminating poison were reinforcing spleen and transforming pathological fluid, increasing Qi and activating blood, supplementing Yin and clarifying heat, reinforcing spleen and dry the dampness, lubricating lung and transforming patholigical fluid and supplementing Qi and activating blood. 2. The oriental prescriptions used for pulmonary cancer were Chunkeum-Weekyungtang & Sohamhwingtang, Jinhayookgunjatang, Hyulboochukeotang, Bokbangkyogonamtang was reported to be effective in the treatment of metastasis. 3. Bokbangshinjingtang and haewool were applied for the complications of pulmonary cancer, Soshihotang for fever, hangamryung for tumor pain. Prunus ansu Komarov, Eriobotrya japonica Lirdley, Pyrrosiae lingua Farwel, Steomon japonica Miguel, Maximowiczia chinensis Ruprecht var, Morus bombycis Koidzumi for cough, Panax Pseudo-ginseng Wall. var, Bletilla striata Reichenbach f., Acacia catechu(兒茶) for hemoptysis, Lonicerae flos, Aspongopus chinensis(九香蟲) for chest pain, Cypsum Fibrosum, Gazella gutturosa, Scutellaria baicalensis Georgi, Gypsophila oldhamiana Miquel for fever, Lepidii semen descurainiae semen, Belamcanda chinensis D.C, Gnaphalium affine(佛耳草) for asthma. 4. For the reduction of side effect by chemotherapy and radiotherapy it was known that supplementing Qi was used chiefly for side effect of chemotherapy and augmenting Yin applied to side effect of radiotherapy. 5. The oriental presciptions were suggested for the side effect by chemotherapy and radiotherapy ; Sammaekaek(參麥液), Whaebokwontang(化瘀復元湯), Hwangjungomitang(黃精五味湯), Yukmijihwangtang(六味地黃湯), Hyangsayukgunjatang(香砂六君子湯), Samlyeekulsan for side effect by chemotherapy while Geumgweisingiwhan, Hwanglyentang(黃連湯), Hwanglyenhaedoktang(黃連解毒湯), Yangyeunchungpeitang(養陰淸肺湯), Idongtang(二冬湯), Jayeunkanghwatang(滋陰降火湯) for side effect by radiotherapy.

• Journal of the Institute of Convergence Signal Processing
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• v.11 no.4
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• pp.326-331
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• 2010

This paper has proposed and experimentally demonstrated a new BLU using an LED and an acryl, which is specially focused on the implementation about the guiding effect of an acryl luminous by the LED. While the conventional BLU using a fluorescent lamp is generally and widely used, it shows big power consumption with a short life even more too thick to hold on the wall. To solve such demerits, we propose a new method for a BLU using an LED and an acryl in this paper. This BLU system has various scratches on the surface of acryl to get diffusion effect of light, and has been included an embedded board that can dynamically control the colors and the intensity of the BLU through the Internet. We have conducted computer simulations to find out the optimal scratch pattern on the surface of the acryl for the backlight system. Based on the resulted out simulation. The the optimal scratch pattern signs has been developed. The simulation result shows 2,673Lux an average for a luminous intensity test, and the other hand, experiential result shows 2,554Lux. From the experiments, it is possible for the proposed BLU system to be used for real advertisements.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.11 no.3
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• pp.47-52
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• 2011

Directional couplers based on plasmonic waveguides with nano-scale three channels are designed by utilizing mode coupling effect as well as rib-guiding structure. Longitudinal modal transmission-line theory(L-MTLT) is used for simulating the light propagation and optimizing the design parameters. The designed plasmonic coupler operating as power splitter has nano-scale size of about 200~250 nm width. In order to achieve the desired power splitting ratio, the refractive index of guiding modes is evaluated along the width variation of center channel. Finally, a power splitter based on triple rib directional coupler, which ensures maximum power transfer from one outermost guide to the other outermost guide, is designed.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2006.05a
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• pp.339-340
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• 2006

Recently, many researches have been done to improve optical performance of LCD-BLU(Back Light Unit). One of the most important parts in LCD-BLU is LGP(Light Guiding Plate). Micro-patterned LGP is known to have different optical characteristics depending on their shape, pattern density and size, etc. In the present study, a micro-optical patterned LGP mold was fabricated using LiGA process. The difference in the optical characteristics between positive and negative patterned LGP's was investigated by fixing the density, location and size of each pattern. It was found that the negative patterned LGP showed better optical characteristics than positive one.

• Journal of The Korean Society of Integrative Medicine
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• v.6 no.2
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• pp.1-16
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• 2018

Purpose : This meta-analysis was aimed at guiding future research in stroke treatment and to provide real-world data relating to the effects of aquatic exercise therapy on balance in patients with chronic stroke. Methods : We performed a meta-analysis comprising 22 studies involving aquatic exercise therapy performed between 2006 and 2017. A meta-analysis software program was used to calculate the mean effect size, effect size by intervention, and effect size by outcome. We also performed a meta-regression analysis and an analysis of publishing bias. Results : The mean effect size was 0.563. The effect size by outcome was observed to be the largest for the functional reach test, followed by the Berg balance scale, balance equipment, the Timed Up and Go test and one leg standing. Meta-regression analysis showed that effect size increased with an increase in the duration, number, length of exercise session. Conclusion : Aquatic exercise therapy appears to show a moderate effect on balance in patients with chronic stroke. A meta-analysis is warranted for further research to determine the effects of aquatic exercise on walking, muscle strength, and range of motion.

• Korean Journal of Optics and Photonics
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• v.14 no.2
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• pp.142-145
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• 2003

The nonreciprocal phase shift characteristics of infinite slab optical waveguides with magneto-optic materials in the cladding layer was calculated at 1.55 ${\mu}{\textrm}{m}$ for optical isolators. The infinite slab waveguide structures considered in this paper were as follows. rho magneto-optic materials used as a cladding layer were Ce:YIG and LNB(LuNdBi)$_3$(FeAl)$_{5}$)$_{12}$,). Their specific Faraday rotations Θ$_{F}$ are 4500$^{\circ}$/cm, 500$^{\circ}$/cm at wavelength 1.55 ${\mu}{\textrm}{m}$ respectively. The guiding layer with multi-quantum well structure was used, and it consists of 1.3Q and InGaAs. In order to investigate the effect of evanescent field penetrating the cadding, layer, guiding mode characteristics were calculated for the cases when the substrate is InP and air. We calculated the minimum lengths of 90$^{\circ}$ nonreciprocal phase shifters and their optimum guiding layer thicknesses in various optical waveguide structures.res.s.

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2006.05a
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• pp.239-242
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• 2006

LCD-BLU (Liquid Crystal Display - Back Light Unit) is one of kernel parts of LCD unit and it consists of several optical sheets(such as prism, diffuser and protector sheets), LGP (Light Guiding Plate), light source (CCFL or LED) and mold frame. The LGP of LCD-BLU is usually manufactured by forming numerous dots with $50{\sim}200$ um in diameter on it by etching process. But the surface of the etched dots of LGP is very rough due to the characteristics of the etching process during the mold fabrication, so that its light loss is high along with the dispersion of light into the surface. Accordingly, there is a limit in raising the luminance of LCD-BLU. In order to overcome the limit of current etched dot patterned LGP, optical pattern design with 50um micro-lens was applied in the present study. The micro-lens pattern fabricated by modified LiGA with thermal reflow process was applied to the optical design of LGP. The attention was paid to the effects of different aspect ratio (i.e. $0.2{\sim}0.5$) of optical pattern conditions to the brightness distribution of BLU with micro-lens patterned LGP. Finally, high aspect ratio micro-lens patterned LGP showed superior results to the one made by low aspect ratio in average luminance.

• CELLMED
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• v.6 no.1
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• pp.6.1-6.6
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• 2016

Polycystic Ovarian Syndrome (PCOS) has now become more common in occurrence in women of reproductive age, particularly in urban and semi-urban population in India. So there is a need to investigate this phenomenon taking into consideration various aspects including possible treatment method to ameliorate/eradicate this syndrome, which has far reaching socio-economic impact and consequences, in view of infertility and irregular menstrual cycles frequently associated with this syndrome. Homeopathy is a branch of traditional alternative medicine which is gaining popularity in India and some other developing countries, as also in some of the developed countries in Europe. With this background scenario, we have made an attempt to treat cases of confirmed PCOS and tried to compare the relative efficacy of two potentized homeopathic drugs, namely, Lycopodium clavatum (Lyco) and Calcarea carbonica (Calc), most frequently used by homeopathic practitioners, selecting different potencies of the drugs, depending on condition/guiding symptom(s) of the patients. While the main focus was pointed on total/partial removal of cysts, data pertaining to different PCOS associated symptoms were also compared for the sake of learning if the two drugs had differential effects on these symptoms also. The study parameters in this investigation included: regularity/irregularity of menstrual cycle, presence/absence of acne, hirsutism, male type alopecia, acanthosis nigricans, body/mass index (BMI) and waist-hip ratio. Overall results provided clear evidences that both these homeopathic drugs had great ameliorating effects on PCOS, although each drug had a little different effect in respect of the individual parameters of this study.

• Journal of the Korean Society of Propulsion Engineers
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• v.19 no.3
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• pp.39-46
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• 2015

A numerical study has been conducted on CO after burning and NO generation of the rocket plume as the cooling water injected to the rocket plume. The present study shows that the cooling water has a role of increasing the degree of CO after burning and reducing NO generation. However the effect varies as the injection configuration of the cooling water. When the cooling water is injected at the side of the plume, NO generation is dramatically reduced while the degree of CO after burning is relatively low. When the cooling water is injected at the side and the center of the plume, CO after burning is highly increased and NO generation is also dramatically reduced.