움직임 추정 오차 분포를 이용한 H.263 부호화기의 진보 예측 모드의 동적선택

許泰元,李根泳 성균관대학교 1998 학술회의지원논문목록집 Vol.1998 No.-

본 논문은 H263 부호화기에서 진보 예측 모드(Advanced Prediction Mode, APM)를 동적으로 적용하여 계산량을 줄이고 부호화 효율을 높일 수 있는 APM의 동적 선택(Dynamic APM, DSPM)방법을 제안하였다. 화면내에 존재하는 움직임 성분을 분석하고, 그 성격에 따라 기본 예측모드(Default Prediction Mode,DPM)와 APM을 동적으로 적용할 수 있도록 하였다. 이를 위하여 매크로 블록 단위로 추정된 각 탐색점에서의 예측 오차로 구성된 움직임 추정 오차 분포(Error Distribution of Motion Estimation, EDME)를 구성하고, 이 분포를 네 개의 영역으로 분할한 다음, 각 분할 영역의 최소 예측 오차와 매크로 블록 단위로 추정된 예측 오차와의 비를 구하여, 블록 단위의 움직임 추정을 수행할 것인가를 결정하였다. 선형 움직임이 대부분인 화면에 대해서는 DPM으로 부호화 하도록 하여, 부분적으로 예측 효율이 떨어지는 것을 막을 수 있었으며, 고정된 APM(Fixed APM,FAPM)으로 부호화 하는 경우에 발생하는 계산량을 30%정도로 줄이면서, 평균적으로 으로 부호화 된 화질과 비슷한 결과를 얻을 수 있었다. In this paper, we proposed a dynamic selection scheme of advanced prediction mode(DAPM), whish reduces computational cost and improves coding efficiency. We can select the mode between default prediction mode(DPM) and advanced prediction mode(APM) accoding to motion components in a frame dynamically. For this purpose, we defined error distribution of motion estimation(EDME) as sum of absolute difference(SAD) for each searching points. This distribution region is divided to four subregions. We calculate minimu, values in each subregions and then, we determine whether block motion estimation is performed of not depending on the results. As a result, we reduced computational complexity to 30% without degradation of image quality compared to fixed APM(FAPM) by selecting DPM for linear movement.

CDM과 ICD에 의한 루퍼시스템의 제어기 설계

김영철,허명준,정동근 순천향대학교 부설 산업기술연구소 1999 순천향 산업기술연구소논문집 Vol.5 No.1

채널분해법(ICD)의 개념과 계수도법(CDM)을 이용하여 2 입력 2 출력 다변수 제어시스템을 설계하였다. 시스템을 2 개의 채널로 분해한 후, 우선 각 개별 채널에 대해서 계수도법(CDM)을 이용하여 분산제어기를 설계하고, 그 분산제어기가 포함된 각 채널에 대해서는 새로운 비간섭화 제어기를 제안하고 설계하였다. 제철공정중 열간압연공정의 루퍼시스템 모델에 대한 모의실험을 통하여, 계수도법과 새로운 비간섭화 제어기의 유용성을 입증하였다.

작물의 음향 신호에 대한 반응 분석에 관한 연구

이근영,허태원,김응성,이재원 成均館大學校 科學技術硏究所 1996 論文集 Vol.47 No.2

The puper studies the relationship between plants and audio signals. Responses of plant are transformed to electrical signals and digitized to process them on computer. Variance and mean are used for spatial domain analysis. and Fourier transform is used for frequency responses analysis as tools. We used celery cabbage, cucumber, parsley and onions as experimental plants. With this experiments, we found out that specific plants are sensitive to specific music signals and external stimulus.

산삼 배양액 급여가 돈육의 이화학적 특성에 미치는 영향

진상근,김일석,송영민,허선진,박기훈,정기종,김동훈,노정만 진주산업대학교 산업과학기술연구소 2006 산업과학기술연구소보 Vol.- No.13

Berkshire를 이용하여 70일간 산삼 배양액 급여 시 육의 이화학적 특성에 미치는 영향은 다음과 같다. 산삼 배양액의 급여에 의해 육의 수분, 조단백, 조지방, 회분, pH, 가열감량, 콜레스테롤 함량, 육색, 조직감의 응집성과 검성, 포화지방산 및 불포화지방산의 비율은 차이를 보이지 않았다. 보수력, 지방색 L^(*)값, 지방산 중 linoleic acid(18:2), arachidonic acid(20:4), 필수지방산의 함량, 아미노산 중 threonine, glutamic acid, valine, isoleucine, leucine, histidine, lysine 및 총아미노산 함량은 산삼 배양액의 급여에 의해 감소하였다. 전단가, 조직감의 표면경도, 경도, 씹힘성, 지방산 중 stearic acid(18:0), oleic acid(18:1) 함량, 아미노산 중 serine, glycine, cystine, methionine, tyrosine 및 phenylalanine의 함량은 산삼 배양액의 급여에 의해 증가하였다. 본 연구결과를 종합하면 산삼 배양액의 급여는 돈육의 경도를 증가시키는 효과 외에 뚜렷한 이화학적인 차이를 나타내지 않았다. 이러한 이유는 급여된 산삼 배양액 내에 함유된 생리활성 물질의 함량이 낮고, 급여수준이 낮은 결과로 사료되어진다. A total of 60 pigs (Berkshire) were used to investigate the effect of dietary artificial culture medium of wild ginsengs (CMG) on physico-chemical characteristics of pork. About 60 kg pigs were randomly alloted into one of two experimental diet groups (C:commercial diet feed; T:commercial diet + 1 L CMG per day for 70days). Pigs were slaughtered at approximately 110 kg live weight, and chemical composition and physico-chemical characteristics were measured in pork loin. Moisture, crude protein, crude fat and ash were not significantly different by dietary artificial culture medium of wild ginsengs. Water-holding capacity was decreased by dietary artificial culture medium of wild ginsengs, while shear force was increased. However, pH, cooking loss and cholesterol contents were not significantly different between two different treatments. In color, L^(*) of fat was decreased by dietary artificial culture medium of wild ginsengs. Brittleness, hardness and chewiness were increased in dietary artificial culture medium of wild ginsengs group. In fatty acid, stearic acid (18:0) and oleic acid (18:1) were higher in dietary artificial culture medium of wild ginsengs group, whereas linoleic acid (18:2) and arachidonic acid (20:4) were higher in control group. In amino acid, serine, glycine, cystine, methionine, tyrosine and phenylalanine were higher in dietary artificial culture medium of wild ginsengs group, whereas threonine, glutamic acid, valine, isoleucine, leucine, histidine and lysine were higher in control group.

韓國의 土壤中 抗菌性 放射線狀菌의 分布에 對한 硏究 (Ⅰ)

金成源,許永根 조선대학교 약학연구소 1986 藥學硏究誌 Vol.8 No.1

The antibiotic-producing streptomyces strains were isolated from the soil gathered from various localities in Kun-San city, some area Ick-San districts and smeltery area Jang-Hang, Korea, and tested for the activity against some of gram positive and negative microorganisms, especially against Pseudomonas aeruginosa. The results are summerized as follows. 1. A total of 2626 streptomyces strains were isolated from 496 soil samples. All of the strains tested, 704 strains of the isolated strains showed antiboitic activity against either gram positive or negative test microorganisms and 139 strains of those tested microorganisms. 2. The thirty-two strains of strains of streptomyces among the active isolated strains showed the antibiotic activity against Pseudomonas aeruginosa, and the thirty streptomyces strains showed the strong antibiotic activity against all of the tested microorganisms, such as Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa, Klebsiella pneumonia, Escherichia coli, Shigella flexneri and Proteus morganii. 3. The active antibiotic-producing streptomyces strains against Pseudomonas aeruginosa were isolated from the soil samples taken from road, ground, paddy field, vegetable field, smeltery area and breeding farm, but not from the soil taken from grass field, hill, sewage disposal area and piers. 4. The strongly active streptomyces strains were isolated from the soil of the bustling road and ground than the grass field which is not bustling. 5. The strongly active strain that it's inhibitory zone are 10∼30㎜ were 139 strains which are 19.8% of total active strains.

[CF-0002] Transcriptional analysis of differentially expressed genes related with disease resistance in Vitis species for grape breeding

Hae Keun Yun(Hae Keun Yun),Soon Young Ahn(Soon Young Ahn),Hae In Lee(Hae In Lee),Youn Young Hur(Youn Young Hur) 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-

Inhibitory Effect of Bee Venom Toxin on Lung Cancer NCI H460 Cells Growth Through Induction of Apoptosis via Death Receptor Expressions

Keun Young Hur,송호섭 대한침구의학회 2014 대한침구의학회지 Vol.31 No.1

Objectives : I investigated whether bee venom inhibit cell growth through enhancement of death receptor expressions in the human lung cancer cells, NCI-H460. Methods : Bee venom(1-5 μg/ml) inhibited the growth of NCI-H460 lung cancer cells by the induction of apoptotic cell death in a dose dependent manner. Results : Consistent with apoptotic cell death, expression of TNF-R1, TNF-R2, FAS, death receptors(DR) 3, 4, 5 and 6 was increased in the cells. Expression of DR downstream pro-apoptotic proteins including Caspase-8, -3, -9 was upregulated and Bax was concomitantly overwhelmed the expression of Bcl-2. NF-kB were inhibited by treatment with bee venom in NCI-H460 cells through TNF response change led by TNF-R1 and TNF-R2. Conclusions : These results suggest that bee venom should exert anti-tumor effect through induction of apoptotic cell death in NCI-H460 human lung cancer cells via enhancement of death receptor expression, and that bee venom could be a promising agent for preventing and treating lung cancer.

Inhibitory Effect of Bee Venom Toxin on Lung Cancer NCI H460 Cells Growth Through Induction of Apoptosis via Death Receptor Expressions

Hur, Keun Young,Song, Ho Sueb Korean AcupunctureMoxibustion Medicine Society 2014 대한침구의학회지 Vol.25 No.1

Objectives : I investigated whether bee venom inhibit cell growth through enhancement of death receptor expressions in the human lung cancer cells, NCI-H460. Methods : Bee venom(1-5 ${\mu}g/ml$) inhibited the growth of NCI-H460 lung cancer cells by the induction of apoptotic cell death in a dose dependent manner. Results : Consistent with apoptotic cell death, expression of TNF-R1, TNF-R2, FAS, death receptors(DR) 3, 4, 5 and 6 was increased in the cells. Expression of DR downstream pro-apoptotic proteins including Caspase-8, -3, -9 was upregulated and Bax was concomitantly overwhelmed the expression of Bcl-2. NF-kB were inhibited by treatment with bee venom in NCI-H460 cells through TNF response change led by TNF-R1 and TNF-R2. Conclusions : These results suggest that bee venom should exert anti-tumor effect through induction of apoptotic cell death in NCI-H460 human lung cancer cells via enhancement of death receptor expression, and that bee venom could be a promising agent for preventing and treating lung cancer.

Different Impact of Diabetes Mellitus on In-hospital and 1-Year Mortality in Patients with Acute Myocardial Infarction Who Underwent Successful Percutaneous Coronary Intervention: Results from the Korean Acute Myocardial Infarction Registry

( Keun Ho Park ),( Young Keun Ahn ),( Myung Ho Jeong ),( Shung Chull Chae ),( Seung Ho Hur ),( Young Jo Kim ),( In Whan Seong ),( Jei Keon Chae ),( Taek Jong Hong ),( Myeong Chan Cho ),( Jang Ho Bae ) 대한내과학회 2012 The Korean Journal of Internal Medicine Vol.27 No.2

Background/Aims: The aim of this study was to evaluate the impact of diabetes mellitus (DM) on in-hospital and 1-year mortality in patients who suffered acute myocardial infarction (AMI) and underwent successful percutaneous coronary intervention (PCI). Methods: Among 5,074 consecutive patients from the Korea AMI Registry with successful revascularization between November 2005 and June 2007, 1,412 patients had a history of DM. Results: The DM group had a higher mean age prevalence of history of hypertension, dyslipidemia, ischemic heart disease, high Killip class, and diagnoses as non-ST elevation MI than the non-DM group. Left ventricular ejection fraction (LVEF) and creatinine clearance were lower in the DM group, which also had a significantly higher incidence of in-hospital and 1-year mortality of hospital survivors (4.6% vs. 2.8%, p = 0.002; 5.0% vs. 2.5%, p < 0.001). A multivariate analysis revealed that independent predictors of in-hospital mortality were Killip class IV or III at admission, use of angiotensin converting enzyme inhibitors or angiotensin-II receptor blockers, LVEF, creatinine clearance, and a diagnosis of ST-elevated MI but not DM. However, a multivariate Cox regression analysis showed that DM was an independent predictor of 1-year mortality (hazard ratio, 1.504; 95% confidence interval, 1.032 to 2.191). Conclusions: DM has a higher association with 1-year mortality than in-hospital mortality in patients with AMI who underwent successful PCI. Therefore, even when patients with AMI and DM undergo successful PCI, they may require further intensive treatment and continuous attention.

The Combination of Periostin Overexpression and Microvascular Invasion Is Related to a Poor Prognosis for Hepatocellular Carcinoma

( Se Young Jang ),( Soo Young Park ),( Hye Won Lee ),( Yeon-kyung Choi ),( Keun-gyu Park ),( Ghil Suk Yoon ),( Won Young Tak ),( Young Oh Kweon ),( Keun Hur ),( Won Kee Lee ) 대한소화기학회 2016 Gut and Liver Vol.10 No.6

Background/Aims: Periostin is an extracellular matrix protein and is known to be related to the metastatic potential and prognosis of cancer. However, few studies have investigated the expression level of periostin and its association with prognoses in hepatocellular carcinoma. Therefore, we analyzed periostin overexpression in hepatocellular carcinoma and its implication for prognoses. Methods: We evaluated 149 patients who underwent surgical resection between 2006 and 2010. Tissue microarrays were constructed from hepatocellular carcinoma tissue and adjacent nontumor tissue, and immunohistochemistry was performed. Results: A high periostin level was observed more frequently in cases of multiple tumors (odds ratio [OR], 2.826; 95% confidence interval [CI], 1.224 to 6.527; p=0.013), positive microvascular invasion (OR, 2.974; 95% CI, 1.431 to 6.181; p=0.003), and advanced stage disease (OR, 3.032; 95% CI, 1.424 to 6.452; p=0.003). Patients with high periostin expression had significantly (p=0.002) lower overall survival rates than those with low periostin expression (90.3%, 66.1%, and 56.2% vs 97.7%, 85.1%, and 77.5% at 1, 3, and 5 years). Conclusions: We found that a combination of periostin overexpression and microvascular invasion in hepatocellular carcinoma was correlated with a poor prognosis and can be a good prognostic marker for hepatocellular carcinoma. (Gut Liver 2016;10:948-954)