• 한국환경복원기술학회지
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• 제18권2호
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• pp.53-64
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• 2015

Rooftop greening is the alternative of urban heat island. The purpose of this study is selecting Sedum to the effect of temperature reduction of the rooftop greening. Since the state of growth is excellent, Sedum kamtschaticum, Sedum takesimense and Sedum middendorffianum surveyed as coverage. It was investigated that there is the effect of reducing the temperature. The effect of temperature reduction of Sedum counted compound was found to be associated with state of growth. When you construct a rooftop greening, planting Sedum kamtschaticum, Sedum takesimense and Sedum middendorffianum is helpful to the effect of temperature reduction. Also, the ingredients various types of Sedum in order to reduce the effective temperature, it must be densified. It must demonstrate an additional effect of temperature reduction of Sedum through complementary and continuous monitoring of the future temperature monitoring method.

• 한국환경복원기술학회지
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• 제20권5호
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• pp.67-81
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• 2017

Because of lack of accurate understanding of the mechanism of urban heat island (UHI) phenomenon and lack of scientific discussion, it is hard to come up with effective measures to mitigate UHI phenomenon. This study systematically described the UHI and suggested the solutions using green-infrastructure (green-infra). The factors that control UHI are very diverse: radiant heat flux, latent heat flux, storage heat flux, and artificial heat flux, and the air temperature is formed by the combination effect of radiation, conduction and convection. Green-infra strategies can improve thermal environment by reducing radiant heat flux (the albedo effect, the shade effect), increasing latent heat flux (the evapotranspiration effect), and creating a wind path (cooling air flow). As a result of measurement, green-infra could reduce radiant heat flux as $270W/m^2$ due to shadow effect and produce $170W/m^2$ latent heat flux due to evaporation. Finally, green-infra can be applied differently on the macro(urban) scale and micro scale, therefore, we should plan and design green-infra after the target objects of structures are set.

• 대한물리치료과학회지
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• 제8권1호
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• pp.907-915
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• 2001

The purpose of this study is to effectively treat low back pain for the out patients who have been treated at the oriental hospital. Sorting the low back pain patients into four types based on scapular and ilium tilting hyper/hypo mobility characteristics, it has used several kinds of acupuncture stimuli on the 4 motor points of limb skeletal muscles, analyzing the acupuncture treatment on the 12 acupuncture points with which oriental hospitals has given to the low back pain patients and comparing with this effect. It has been analyzed how effectively the acupuncture stimuli has been contributed to the low back pain patients who suffered from skeletal muscles of spinal limb thorax abdominal and spinal skeletal system. The results are as follows. 1. There has been changes after treatment in both the control and experimental groups for low back pain patients, but the latter has been more increased in changes than the former. 2. There were much effects on the balanced restorations for spinal skeletal muscle in both the control group and experimental one, but on terms of restoration degree, the degree of the experimental group was higher than that of the control group. 3. Both the contrastive treatment and the experimental one have been contributed to the balanced restoration for all of the limb thorax abdominal muscles, but there were a few differences in terms of the way for restoration and the effects for improvement according to body types. 4. On both the control and the experimental group, spinal skeletal system has been restored with balance, but the experimental group has been higher effective on the balanced restoration than the one of the control group. Considering these results both the control and the experimental treatments have been contributed to the balanced restorations for all of low back pain patients who were suffering from skeletal muscles of spinal limb thorax abdominal and spinal skeletal system, but the contribution degree for the experimental group has been higher than that of the control group.

• 한국약용작물학회지
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• 제25권5호
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• pp.282-289
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• 2017

Background: To investigate the possibility of using Asarum sieboldii as an environment-friendly fumigant for protecting organic cultural heritages, the inhibitory effect of A. sieboldii extract against wood rot fungi on Hanji was examined. Methods and Results: The physical, optical, and morphological properties of Hanji inoculated with Trametes versicolor and Tyromyces palustris, and exposed to the n-hexane fraction of A. sieboldii extract, were measured. The physical properties were expressed as weight loss, zero-span tensile strength and viscosity and the optical properties were depicted by luminance and chromaticity ($L^*$, $a^*$, and $b^*$). The results showed that, the n-hexane fraction of A. sieboldii extract inhibited the growth of fungi on Hanji, and preserved its condition. At a concentration of 25 mg, the n-hexane fraction of A. sieboldii extract maintained zero-span tensile strength, increased viscosity, and restricted discoloration of Hanji. It also was confirmed that the weight of fungi infested Hanji exposed to the extract did not decrease. Scanning electron microscopic images revealed that the spores and hyphae of T. versicolor and T. palustris were not present on Hanji during treatment with > 25 mg of the n-hexane fraction of A. sieboldii extract. Conclusions: These results indicate that the n-hexane fraction of A. sieboldii extract by virtue of its antifungal effectiveness may help in preserving Korean paper cultural heritages, including Hanji.

• 한국환경복원기술학회지
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• 제6권3호
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• pp.86-96
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• 2003

This study aims to improve system for the enlargement of artificial planting spaces through grasp several problems about it and related system in domestic and foreign. In order to improve system for the extension of artificial planting spaces in the urban area following plans have been presented. First, it is necessary to launch various bonus, subsidies and incentives for making planting spaces in the urban area. Second, subdivision of related regulations for using diverse planting methods is needed. Third, government has to take the initiative in pushing on with planting of artificial spaces. Fourth, it is necessary to development of concrete techniques. Finally, it is desirable to plant artificial spaces which animal and plant can live, low effect to environment and material can be circulated although the value of plantation as a meaning of simple green also are admitted. Planting of artificial spaces should be introduced in a positive light for conservation and restoration of urban ecosystem.

• International Journal of Control, Automation, and Systems
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• 제4권4호
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• pp.524-528
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• 2006

A controller built with the gyro effect for a balance-beam can freely control the attitude of an unstructured object by changing the position of an inner gimbal. In this paper, we propose a new balance-beam controller that can detect the inertia of the load to limit the velocity of the load commanded by a user. We found that when there was smaller load inertia, a larger restoration displacement occurred. Therefore, the load can be identified by issuing a predefined command to measure the restoration displacement, which enables us to construct a controller that can limit the angular velocity of the load by planning the motion. Experimental results show the performance of the controller with different loads.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1997년도 춘계학술대회 논문집
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• pp.540-545
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• 1997

This paper is to evaluate the stress distibution and displacements around the single implant restoration in dentisry. The computer simulation technique using FEM was applied to the analysis, and four londing inclination were studied: verical(0 .deg.),15 .deg.,30 .deg.,45 .deg. with respect to implant axis. The magnitudes of occlusal force were 100N, 200N, 300N, 400N, and 500N. The computed result shows that the stress on a single implant restoration increases as the load or the inclined angel increases, and that the change in loading inclination has a greater effect on the stress distribution than that of the load magnitude.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권3호
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• pp.1182-1194
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• 2016

The single image dehazing algorithm in existence can satisfy the demand only for improving either the effectiveness or efficiency. In order to solve the problem, a novel variational framework for single image dehazing based on restoration is proposed. Firstly, the initial atmospheric scattering model is transformed to meet the kimmel's Retinex variational model. Then, the green light component of image is considered as an input of the variational framework, which is generated by the sensitivity of green wavelength. Finally, the atmospheric transmission map is achieved by multi-resolution pyramid reduction to improve the visual effect of the results. Experimental results demonstrate that the proposed method can remove haze effectively with less memory consumption.

• Current Optics and Photonics
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• 제4권3호
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• pp.200-209
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• 2020

We describe an approach that uses a bilateral filter to reduce the ringing artifact in motion-blurred restoration image. It takes into account the specific physical structure of the ringing artifact combined with the properties of the human visual system. To properly reduce the ringing artifact, each of the adjacent pixels is limited in a straight line which has a given direction. To protect the edges and the texture regions of an image, our algorithm divides the image into texture regions and flat regions, and the artifact reduction algorithm is only applied to the flat region. Finally, we use 8 typical images and 5 objective quality evaluation indices to evaluate our algorithm. Experimental results show that our algorithm can obtain better results in subjective visual effect and in objective image quality evaluation.

• 대한심미치과학회지
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• 제7권1호
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• pp.18-26
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• 1998

The improvement of esthetic dentistry has been accelerated from the development of composite resin and dentin-enamel adhesive since 1980's. The indirect composite resin restorations have more accurate proximal contact point and occlusal form than direct restoration. And the side effect of resin shrinkage is minimal because the amount of composite used in oral cavity is limited in cement space. As a results, marginal leakage, hypersensitivity, secondary caries, and discoloration are significantly diminished. The first generation laboratory composite resin used in indirect resin restoration had been widespread in 1980's and the second generation laboratory composite resins were developed in 1990's. The second generation laboratory composite resins are called Ceramic Polymer. The physical properties of Ceramic Polymer are improved because of high content of inorganic filler, and the esthetics and biocompatibility are better than that of the first generation resin. So the application range using composite resin have been broadened. The purpose of this paper is to introduce Targis & Vectris system that is classified to second generation laboratory composite and to report several cases in which the system was utilized for restoration.