• Proceedings of the KIEE Conference
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• 2000.07d
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• pp.2714-2716
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• 2000

칼라는 물체의 특성을 나타내는 고유한 성질 중의 하나로 칼라 정보를 이용하면 물체를 추적하는데 많은 도움을 얻을 수 있다. 그러나 동일한 칼라의 물체일지라도 조명의 상태나 물체의 형태 등에 따라 실제 이미지 상에 나타나는 칼라는 조금씩 다른 칼라값을 갖는다. 따라서 칼라를 이용하여 물체를 표현하기 위해서는 이미지 상에 나타나는 이러한 물체의 칼라 분포를 효과적으로 모델링할 수 있는 방법이 필요하다. 또한 한번 모델링된 칼라일지라도 물체가 이동하거나 조명이 변화하게 되면 칼라의 분포가 변화하므로 모델링된 칼라가 이러한 변화에도 적절히 대응할 수 있어야 칼라 정보를 이용하여 물체를 추적할 수 있다. 본 논문에서는 이러한 문제를 해결하기 위하여 물체의 칼라 분포를 look-up table을 이용하여 모델링하고 추적하는 물체의 칼라 정보를 이용하여 모델링된 칼라 분포를 다시 갱신하는 적응형 look-up table 방법을 제시하였다. 적응형 look-up table은 모든 칼라값을 테이블로 표현하므로 어떠한 칼라 분포도 모델링할 수 있으며 연산시 단순 참조 방식으로 처리되기 때문에 빠른 계산이 가능하다. 또한 look-up table은 지속적으로 갱신되므로 조명의 변화나 물체의 이동 등으로 인한 칼라 분포의 변화에도 적절히 대응할 수 있다. 본 논문에서는 칼라 정보를 이용하여 물체를 추적하는데 적응형 look-up table을 이용함으로써 적응형 look-up table의 타당성을 검증하였다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2004.11a
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• pp.539-542
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• 2004

Nowadays, High-rise building becomes higher and bigger than ever. As a result, lots of construction materials are needed at the same times. Because of divided diverse process of construction, several different Processes concur simultaneously with complexity of procurement. So, effective construction material supply and lift-up are essential part of the spot. Especially, when ending part of construction, there are much conflict between finishing and equipment materials also problems of folding lift-up. The Purpose of this paper is suggesting better effective lift-up system through analysis of loading factors.

• Journal of Korean Medicine Rehabilitation
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• v.29 no.4
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• pp.73-79
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• 2019

Objectives The purpose of this study is to provide Korean version of mild traumatic brain injury assessment tool. Methods The original version of acute concussion evaluation (ACE) was translated into Korean, and it was then back-translated into English without any prior knowledge of ACE. Finally, the pre-final version of Korean version of acute concussion evaluation (K-ACE) was derived. 49 Korean patients who had been diagnosed with mild traumatic brain injury participated in the study and completed K-ACE. Overall, 44 data were used to analyze findings. Validity of the study was assessed based on Concurrent validity. Reliability was also evaluated using Cronbach's ${\alpha}$ and the intraclass correlation coefficient. Results The Cronbach's ${\alpha}$ value for each item presented a proper level of internal consistency with results of 0.711 to 0.893 in two evaluations, respectively. The intraclass correlation coefficient of the retest reliability was marked as 0.892 (95% CI 0.840~0.933). Concurrent validity demonstrated positive correlations between K-ACE and Korean version of postconcussional syndrome questionnaire. Conclusions The K-ACE is concluded as a valid and reliable tool for measuring mild traumatic brain injury and post-concussion symptoms. Upon completion of the follow-up study, the K-ACE will be well-utilized by both clinicians and researchers.

• Annals of dermatology
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• v.30 no.6
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• pp.688-693
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• 2018

Background: There are few pharmacologic options to reduce erythema and flushing in patients with recalcitrant erythematotelangiectatic rosacea (ETR). We previously reported two cases of refractory flushing and erythema of rosacea that were successfully treated with intradermal botulinum toxin injection, and additional research is needed to prove the efficacy and safety of this treatment. Objective: To report the efficacy and safety of botulinum toxin injection as an aid in persistent erythema of rosacea patients. Methods: A total of 20 Korean patients with recalcitrant ETR were enrolled to receive treatment by injection of botulinum toxin. Patients received one treatment of intradermal botulinum toxin injection and were assessed 1, 2, 4, and 8 weeks after treatment. The severity of erythema and telangiectasia was investigated by a non-treating physician, and the Erythema Index (EI) was assessed by mexameter at each visit. Patient satisfaction and any adverse events were also assessed at each visit. Results: 17 patients completed all follow-up visits and were included in the analysis. Intradermal injection of botulinum toxin significantly reduced erythema severity and EI in ETR patients. Patients reported a satisfaction score of $2.94{\pm}0.56$ at 8 weeks after treatment. Except for three patients who discontinued the study early due to inconvenience of facial muscle paralysis, 17 patients participating in the final analysis did not report side effects except injection pain at the time of the procedure. Conclusion: Intradermal injection of botulinum toxin can be used as an effective and relatively safe adjuvant agent for recalcitrant and persistent erythema of ETR patients.

• ALGAE
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• v.22 no.4
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• pp.333-338
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• 2007

A fucoidan, isolated from Korean Undaria pinnatifida spoprophyll (UP-F), was investigated for its immunomodulating activity on murine macrophages and splenocytes, and its activity was compared with that of fucoidan from Fucus vesiculosus (FV-F). Treatment of UP-F resulted in inhibition of the growth of murine macrophage RAW 264.7 cells, but its cytotoxicity was not observed in normal murine splenocytes. FV-F was shown to be highly cytotoxic to both immune cells, and its cytotoxic activity was higher than that of UP-F. Treatment of UP-F induced TNF-α in a dose-dependent manner from two types of macrophages, RAW 264.7 cells and murine peritoneal macrophages. The TNF-α-inducing activity of UP-F was higher than that of FV-F. UP-F also actively induced chemokines (RANTES and MIP-1α) from RAW 264.7 cells. Furthermore, treatment of UP-F gave rise to activation of murine splenocytes to produce cytokine (IL-6) and chemokines (RANTES and MIP-1α), showing significantly higher activity than that of FV-F. These results indicate that UP-F is less cytotoxic to immune cells than FV-F, and possesses immunomodulating activity to produce cytokines and chemokines from macrophages and splenocytes.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.3
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• pp.1085-1094
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• 2010

In these day, the recession of economics and cutting-off jobs makes increases of start-up business. The unprepared start-up business which lacks sufficient information and knowledge should fall. For successful start-up business, the effective education program should be necessary. This study reviews factors such as learning motivation, entrepreneurial intention, education satisfaction, self-efficacy affecting the performance of short-term education program. This study establishes hypothesis and verifies them. To verify the hypothesis, this study explores factors affecting the performance of short-term entrepreneurial education program through utilizing factor analysis, and structural equation modeling. We suggest that the results of the study could be utilized as followings; First the results of study could be used to establish policy which improves the performance of short-term entrepreneurial education program. Second, the identified factors help educator to established the curriculum of the short-term entrepreneurial education program. Third, the identified factors could be established as criteria to recruit the applicants who wants to received short-term entrepreneurial education program.

• Proceedings of the KSAR Conference
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• 2001.03a
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• pp.29-29
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• 2001

This study was carried out to examine, by the reverse transcription chain reaction(RT-PCR)and Immunostain assays, epidermal growth factor mRNA expression in bovine ova during oocyte maturation in vitro(0-2lh)and after fertilization in vitro(6-144hr: zygotes to blastocysts). In this study, the transcripts of EGF was detected in oocytes using primers for EGF. Transcripts for EGF mRNA was not detected in oocytes through in vitro maturation. But EGF mRNA were present after fertilization up to the 2-cell stage and the blastocyst stage. The highest mRNA levels in 4-cell stage embryos were decreased at 8cell stage and then reincreased upto morulae and blastocysts. The results of this study showed EGF mRNA are present in embryo after fertilization and this factors are involved in the regulation of bovine embryo development.

• Food Science of Animal Resources
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• v.32 no.1
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• pp.45-48
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• 2012

The imidazole dipeptide carnosine and its methylated anserine analogues are the major histidine containing dipeptides in vertebrate tissue, especially in skeletal muscle, the heart, and the central nervous system. In this study, the carnosine and anserine content in chicken from different parts and of differing ages was determined and their physiological activities were compared. Anserine was more dominant than carnosine in these tissues and both of them significantly decreased with aging in all parts of chicken muscles. Chicken breast muscle showed the highest content of carnosine and anserine than drumstick and wing. Advanced glycated end-product (AGE) formation was inhibited up to 60% by the extract from 20 wk chicken breast and decreased with aging (90 wk). Anti-oxidation activity was also significantly reduced from 61.2% to 52.9% with aging. As results, anti-glycation and anti-oxidation activity of carnosine and anserine extract from chicken muscle increased proportionally to the amount of those peptides in the muscle, while these decreased with the aging process.

• Korean Journal of Agricultural Science
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• v.47 no.4
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• pp.987-993
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• 2020

This study investigated the effective harvest of 'Kyoho' grapevines by examining their characteristics including bud development, necrosis types and flower primordium formation. The size of the axillary bud did not show any difference in the 5th node or more, but it was smaller because it was closer to the base in the 4th node or less. In the 1st node, the rates of main bud necrosis (MBN), accessory bud necrosis (ABN), and whole bud necrosis (WBN) were high, and the rate of flower primordium formation was low, but there was no significant difference in the other nodes. Therefore, it was expected that using other nodes than the 1st node would be advantageous to secure production. Because the growth progresses after sprouting, the main bud necrosis rate increases, showing a very low flower primordium formation rate in March of the following year. Therefore, a method is needed to increase the storage nutrients in the winter and the rate of flower primordium formation after March. This study found that the thickness of the shoots should be less than 8.5 mm between the 3rd and 4th nodes, and the length should be less than 60 cm for nodes up to the 10th node.

• Archives of Plastic Surgery
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• v.41 no.4
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• pp.355-361
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• 2014

Background A blow-out fracture is one of the most common facial injuries in midface trauma. Orbital wall reconstruction is extremely important because it can cause various functional and aesthetic sequelae. Although many materials are available, there are no uniformly accepted guidelines regarding material selection for orbital wall reconstruction. Methods From January 2007 to August 2012, a total of 78 patients with blow-out fractures were analyzed. 36 patients received absorbable mesh plates, and 42 patients received titanium-dynamic mesh plates. Both groups were retrospectively evaluated for therapeutic efficacy and safety according to the incidence of three different complications: enophthalmos, extraocular movement impairment, and diplopia. Results For all groups (inferior wall fracture group, medial wall fractrue group, and combined inferomedial wall fracture group), there were improvements in the incidence of each complication regardless of implant types. Moreover, a significant improvement of enophthalmos occurred for both types of implants in group 1 (inferior wall fracture group). However, we found no statistically significant differences of efficacy or complication rate in every groups between both implant types. Conclusions Both types of implants showed good results without significant differences in long-term follow up, even though we expected the higher recurrent enophthalmos rate in patients with absorbable plate. In conclusion, both types seem to be equally effective and safe for orbital wall reconstruction. In particular, both implant types significantly improve the incidence of enophthalmos in cases of inferior orbital wall fractures.