• The Journal of Korean Academy of Prosthodontics
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• v.36 no.3
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• pp.468-482
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• 1998

Since the concept of osseointegration was introduced by Branemark of Sweden, dental implants have been used for various dental prosthetic treatments. The survival rate of dental implant is likely to be closely related to the total biomechanical role of each component of implant system. The use of interchangeable component is very attractive for dental practitioners because such an approach would save treatment cost, flexibility of prosthetic treatment options as well as conveniences. Therefore, the use of interchangeable implant system has been increasing without scientific assessment of safety and efficacy of various interchangeable implant system. The purpose of this study, therefore, were to compare the geometric characteristic of four interchangeable dental implant screws and the loosening torque of these screws. Four types of dental implant screws tested in this study were Nobelpharma, 3i, Impla-med, Restore. Four screws each of the test specimens were subjected for scanning electron microscopic examinations under the same condition and a 35x magnified standard SEM picture was objected from each test specimen using JSM-5200 scanning microscope. From each of the SEM pictures, eight parameters. i.e., diameter of screw head. screw length, thread pitch, major diameter. neck diameter, neck length, crest width and root width were determined using a caliper. The measurement for each parameters were then corrected for their magnification factor. The loosening torque were also determined by using a torque gauge. All of the measurements were statistically analyzed by ANOVA test and multiple range test. Statistical significance was set in advance at the probability level of less than 0.05. All analyses were done with SPSS software for the personal computer. The conclusion obtained from this studies were summarized as the following; 1. No statistically significances were noted in the thread pitch. and crest width in the four screws, and in the case of major diameter, the Impla-med screw was significantly smaller than the other three screws (p<0.05). Therefore, four implant bolts could be physically inserted in a abutment nuts. 2. The diameter of screw head was decreased in the order of Restore, 3i, Nobelpharma, Impla-med screws and the length of screws were decreased in the order of 3i, Restore, Nobelpharma and Impla-med. The diameter of neck was decreased in the order of Impla-med, Restore. Nobelpharma, 3i screws. The differences of each of these parameters were statistically significant (p<0.05). The width of root of screws were decreased in the order of Nobelpharma, Impla-med, Restore and 3i. The differences among Nobelpharma and Impla-med. Restore and 3i were statistically significant (p<0.05). 3. When the screws were loosening 1, 3, 4 and 5 times, the loosening torque for Impla-med and 3i screws were significantly higher than that of Nobelpharma or Restore screws (p<0.05). However, when statistically smaller than that of 3i, Restore or Nobelpharma screws(p<0.05).

• The Transactions of the Korea Information Processing Society
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• v.6 no.3
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• pp.722-728
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• 1999

When one link failure happens in BSHR/2 networks, it is possible to restore all traffics by following the ITU-T G.841 rules. However, when a node that is currently executing a ring switch receives a long-path ring bridge request for an higher priority, it shall drop its bridge and switch immediately, then enter full pass-through. Even through link connection between two nodes exists, it is impossible to restore the service. In this paper, when multi-link failures happen, the services through connected link can be restored by exchanging messages through DCC(Data Communication Channel). Partially reconstructing the ring map that is unable to restore services because of multi-link failures made it possible to restore these kinds of traffic pattenrs. This paper shows that the services through connected link can be restored by using proposed method.

• IEMEK Journal of Embedded Systems and Applications
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• v.12 no.3
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• pp.177-184
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• 2017

High performance non-volatile memory system can mitigate the gap between main memory and storage. However, no single memory devices fulfill the requirements. Non-volatile Dual In-line Memory Module (NVDIMM) consisted of DRAMs and NAND Flashes has been proposed to achieve the performance and non-volatility simultaneously. When power outage occurs, data in DRAM is backed up into NAND Flash using a small-size external energy storage such as a supercapacitor. Backup and restore operations of NVDIMM do not cooperate with the operating system in the NVDIMM standard, thus there is room to optimize its operation. This paper analysis the operation of NVDIMM and proposes a method to reduce backup and restore time. Particularly, data compression is introduced to reduce the amount of data that to be backed up and restored. The simulation results show that the proposed method reduces up to 72.6% of backup and restore time.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2018.05a
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• pp.181-182
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• 2018

Decline in population and aging have led to the crisis of urban extinction, and the importance of urban regeneration has grown in the country. In addition to the meaning of redevelopment and reconstruction, the government will seek to secure sustainable living conditions, restore the economy, and restore social and cultural functions by utilizing the new technologies based on the efforts to restore the maximum cost to urban buildings and IT technologies.

• Korean Journal of Digital Imaging in Medicine
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• v.10 no.1
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• pp.41-44
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• 2008

This paper will improve the quality of medical imaging to restore defective pixels on how to present the information you want to increase the efficiency, Using the filter is damaged pixel approximation of the same value to get value, but it is difficult to obtaion. How to get value for the restoration of the original imaged as a way to fill a sweater pattern of missing and how to restore the delta using the filter, compared to the extsting method of excellence.

• Proceedings of the KIEE Conference
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• 1998.11a
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• pp.276-278
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• 1998

This paper introduce an algorithm for service restoration in electric power distribution systems. Power utility performs service restoration in order to restore out-of-service areas at fault. Developing effective service restoration program is a cost-effective approach to improve service reliability and to enhance customer satisfaction. The main objective in service restoration program is to restore as much load as possible by transferring de-energized loads via network reconfigurations to other supporting distribution feeders without violating operating and engineering constrains.

• Clinical and Experimental Reproductive Medicine
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• v.46 no.1
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• pp.1-7
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• 2019

With the progress of regenerative medicine, mesenchymal stem cells (MSCs) have received attention as a way to restore ovarian function. It has been reported that MSCs derived from bone marrow, adipose, umbilical cord blood, menstrual blood, and amniotic fluid improved ovarian function. In light of previous studies and advances in this field, there are increased expectations regarding the utilization of MSCs to restore ovarian function. This review summarizes recent research into potential applications of MSCs in women with infertility or primary ovarian insufficiency, including cases where these conditions are induced by anticancer therapy.

• Journal of Animal Reproduction and Biotechnology
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• v.38 no.1
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• pp.2-9
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• 2023

Mammalian eyes have a limited ability to regenerate once neurons degenerate. This results in visual impairment that impacts the quality of life among adult populations as well as in young children leading to lifelong consequences. Various therapies are in development to restore vision, and these include gene therapy, stem cell therapy, in-vivo transdifferentiation, and transplantation of a patient's whole eye obtained from interspecies blastocyst complementation. This review discusses advances in the research as well as hurdles that need to be resolved to have a successful restoration of vision.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.3 no.1
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• pp.80-90
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• 2000

This study was carried out to introduce current status and development strategy for an environmental restoration of stream side in Japan, and to consider a methodology which could be effectively applied for the environmental restoration of stream side in Korea. Since the end of 20th century, the native ecology and landscape of Japan remained only a limited areas such as stream side, water side and forest areas. Therefore, recently the works of forest conservation and erosion control of environmental restoration on stream side tended to increased. The strategic prospects of environmental restoration in Japan were summarized as follows : 1. From the ecological point of view, we have to develop a certain method and technology in construction of forest conservation and erosion control to prevent environmental problem from erosion control works. 2. We have to restore not only a continuity of stream side forest from a primitive area to an estuary but also the stream side forest to preserve and restore a stream side vegetation on a primitive watershed areas. 3. We have to improve a method of construction or removal of a structure which were constructed in the stream to restore a water side environment and an interaction system for an integration on a forest land, stream, and erosion control. Additionally, we have to establish an integrated evaluation method and an enforcement system after investigation of influences on natural environment, stream, and forest etc. 4. We have to conduct an integrated research to investigate the ecosystem of stream side, and construct environmentally friendly water park and erosion control park which considered natural environment and its landscape. Additionally, we need to introduce and adopt a natural style stream construction method to restore a water side areas.

• Journal of Fashion Business
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• v.7 no.4
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• pp.1-16
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• 2003

Nowadays, retro to the past fashion is appeared just as often as new challenge and trial. The style of Renaissance Era is the most often revival theme for contemporary fashion. So, this study was focused on 16C of Renaissance costume. It is investigated the characteristics of Renaissance costume through referring the literature to be able to restore the past costume as through as possible with the object of building database for developing new design. This study is done in two different ways at the same time, direct study to restore and indirect study to refer. Direct one is of the past costume as thoroughas possible based on referring to the originals. The other is referring the costume historical literature The costumes to restore is chosen among 16C famous pictures on the basis of how much they can show the typical chracteristics of 16C costume. Materials including textiles and ornaments which are necessarily to restore were shopped in Dongdeamoon Market. Some materials had a problem to get exactly the same one in Seoul on 21C. After visiting imes, the materials is chosen as similar as originals. Three sets of costume were restored on the basis of referring "Pattern of Fashion" written by Janet Arnold. The costumes were restored by reinforcing bodice based on the size of waist and in every three works. The way of sewing is based on hand sewing for details and machin-sewing for seam. Quilting intl lining is uwed giving the fabric stiffness to maintain the form from the heavy padding. Also the part of piles on margins is used darts instead of gather, because of reducing bulkiness of seam. General closing methods are hook and eyes, and lacing with points.