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An Optimized Motion Estimation Algorithm and Application in the FRUC System
Min-Jun Deng,Ping Gan,Zhuo Chen,Xiao-Qing Shen,Dong-Lian Li,Ming-Yan Yu,Yu Zhang,Cai -Lan Zeng,He Huang 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.8
Based on the optimized three-step search algorithm. Combining threshold judgment as well as local full search, a more efficient motion estimation algorithm is proposed. The algorithm not only inherited the traditional three-step algorithm’s quick speed but also kept the advantages of a relatively small amount of calculation, besides it can avoid the local optimum problem in the three-step search algorithm (TSS). In addition, the algorithm combined with the threshold judgment and local full search algorithm, so it also maintains satisfactory visual quality. Comparing the algorithm with TSS and local full search algorithm (LFS). The algorithm has great performance in search points and peak signal-to-noise ratio. Experimental results show that compared with LFS, search points drop by 34.61% ~ 54.47% .While compared with the TSS, the search points only rise by 6.15% ~ 12.21%. The average PSNR of proposed Algorithm is 0.24dB higher than LFS and 3.30dB higher than TSS.
Min Tan,Zhen Shang,Chenbo Xie,Hui Ma,Qian Deng,Xiaomin Tian,Peng Zhuang,Zhanye Zhang,Yingjian Wang 한국광학회 2018 Current Optics and Photonics Vol.2 No.1
To measure atmospheric temperature, water vapor, and aerosol simultaneously, an efficient multi-function Raman lidar using an ultraviolet-wavelength laser has been developed. A high-performance spectroscopic box that utilizes multicavity interference filters, mounted sequentially at small angles of incidence, is used to separate the lidar return signals at different wavelengths, and to extract the signals with high efficiency. The external experiments are carried out for simultaneous detection of atmospheric temperature, water vapor, and aerosol extinction coefficient in Beijing, under clear and hazy weather conditions. The vertical profiles of temperature, water vapor, and aerosol extinction coefficient are analyzed. The results show that for an integration time of 5 min and laser energy of 200 mJ, the mean deviation between measurements obtained by lidar and radiosonde is small, and the overall trend is similar. The statistical temperature error for nighttime is below 1 K up to a height of 6.2 km under clear weather conditions, and up to a height of 2.5 km under slightly hazy weather conditions, with 5 min of observation time. An effective range for simultaneous detection of temperature and water vapor of up to 10 km is achieved. The temperature-inversion layer is found in the low troposphere. Continuous observations verify the reliability of Raman lidar to achieve real-time measurement of atmospheric parameters in the troposphere.
Optimization of the NPK Ratio for Vegetative Growth in Aeschynanthus longicaulis
Min Deng,Qiansheng Li 한국원예학회 2022 원예과학기술지 Vol.40 No.6
Aeschynanthus longicaulis is a gesneriad that can be grown as a hanging basket or indoor pot plant. Fertilization practice is rarely researched in relation to the genus Aeschynanthus cultivation. This pot experiment is conducted on soilless media to optimize the best NPK ratio for the vegetative growth of A. longicaulis. Four fertilization levels (0, 1, 2, 3) were established for three factors of N, P, and K with 14 fertilizer treatments (“3414” fertilizer experiment design). The relationships between nutrient levels, plant growth, and tissue nutrient concentration were investigated. The results showed that increasing the NPK application concentration significantly improved plant growth. However, N had a more significant influence on the shoot growth and root/shoot ratio than P and K. The NPK ratio 3-1-2 is recommended for A. longicaulis vegetative growth on soilless media.
Effect of MUC1 siRNA on Drug Resistance of Gastric Cancer Cells to Trastuzumab
Deng, Min,Jing, Da-Dao,Meng, Xiang-Jun Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.1
Trastuzumab is the first molecular targeting drug to increase the overall survival rate in advanced gastric cancer. However, it has also been found that a high intrinsic or primary trastuzumab resistance exists in some proportion of gastric cancer patients. In order to explore the mechanism of resistance to trastuzumab, firstly we investigated the expression of MUC1 (membrane-type mucin 1) in gastric cancer cells and its relationship with drug-resistance. Then using gene-silencing, we transfected a siRNA of MUC1 into drug-resistant cells. The results showed the MKN45 gastric cell line to be resistant to trastuzumab, mRNA and protein expression of MUC1 being significantly upregulated. After transfection of MUC1 siRNA, protein expression of MUC1 in MKN45cells was significantly reduced. Compared with the junk transfection and blank control groups, the sensitivity to trastuzumab under MUC1 siRNA conditions was significantly increased. These results imply that HER2-positive gastric cancer cell MKN45 is resistant to trastuzumab and this resistance can be cancelled by silencing expression of the MUC1 gene.
Yijie Deng,김보연,Min-Ji Park,Min Ok,Kwang Sik Lee,BYUNG RAE JIN 한국응용곤충학회 2020 Journal of Asia-Pacific Entomology Vol.23 No.3
Ascocarps of some species of the genus Cordyceps have long been used as a traditional medicine and food source for promoting human health. The compound cordycepin, isolated from C. militaris ascocarps (CE), show similar health effects to CE. In this study, we investigated and compared the anti-obesity and antidiabetic effects of dietary CE and Paecilomyces tenuipes ascocarps (PE) in mice. In addition, we investigated their effects on the expression of genes related to the regulation of obesity and diabetes. We found that dietary CE and PE suppressed body weight gain and fat accumulation in the liver and adipocyte tissues of mice fed a high-fat diet (HFD). Enzyme and lipid profiles induced by HFD returned to normal with CE or PE treatment. Dietary CE or PE reduced fasting blood glucose and serum insulin levels in HFD-fed mice. Finally, we show that CE and PE treatment restored to normal the hyperlipidemia- and hyperglycemia-related gene expressions in HFD-fed mice. These results indicate that dietary CE or PE exert their anti-obesity and antidiabetic effects by regulating adipogenesis and insulin signaling pathways. Finally, we show that dietary CE or PE have similar anti-obesity and antidiabetic effects even when included in a normal mouse diet. Although cordycepin is not found in PE, PE treatment improves lipid and glucose metabolic parameters in a manner similar to CE. We find that PE provides alternative potential therapeutic treatments for obesity and diabetes.
Understanding the Critical Inducers of International Contractors' Corruption
Min Luo,Xiaopeng Deng,Na Zhang 대한토목학회 2023 KSCE Journal of Civil Engineering Vol.27 No.9
International contractors’ corruption severely threatens the transparency and sustainability of the construction industry. This study aims to identify critical inducers of international contractors’ corruption and explore their interrelationships. Leveraging the fraud diamond theory, the critical inducers were identified through the semi-systematic review, context analysis, and a two-round Delphi survey with 26 experts. Then, the cause-effect associations among the critical inducers were captured by integrating the decision-making trial and evaluation laboratory (DEMATEL) method and the interpretive structure modeling (ISM) method. Following this hybrid approach, the corruption inducer system incorporating 12 inducers and 32 conditions was proposed. Institutional pressure and inefficient compliance management were the most critical inducers in the system. Additionally, the interrelationships among these inducers were organized into a seven-level hierarchy pattern. Intricate rules and institutional pressure were the root causes of corruption. Inadequate formal sanctions were the key node in the causal chain. Neutralization techniques and execution skills were the immediate causes of corruption. This study develops the corruption inducer system by combining theory with practice in the international construction industry. It contributes to the sparse research on corruption by clarifying the cause-effect relationships among inducers from a holistic perspective. The findings would help industry practitioners, multinational company executives, and international aspirants understand corruption comprehensively and prioritize countermeasures.
Deng, Da,Kim, Min Gyu,Lee, Jim Yang,Cho, Jaephil Royal Society of Chemistry 2009 ENERGY AND ENVIRONMENTAL SCIENCE Vol.2 No.8
<P>It is expected that the market dominance of lithium-ion batteries will continue for at least another decade as there are currently no competing alternatives with the versatility of lithium-ion batteries for powering mobile and portable devices; and for buffering the fluctuating supply of intermittent energy sources such as wind and solar. While the pursuit of higher energy density and higher power density materials constitute the bulk of current interest, there is increasing interest in durable active battery materials that can be produced with minimum environmental impact. It is with these considerations that TiO<SUB>2</SUB>- and Sn-based anode materials are most interesting candidates for fulfilling future green energy storage materials. This review will focus on the recent developments of nanostructured TiO<SUB>2</SUB> and Sn-based anode materials, including rutile, anatase, TiO<SUB>2</SUB> (B), and coated TiO<SUB>2</SUB>, and pristine SnO<SUB>2</SUB>, and SnO<SUB>2</SUB>/C, Sn(M)/C composites.</P> <P>Graphic Abstract</P><P>Recent advances in the synthesis and storage of lithium ions in nanostructured TiO<SUB>2</SUB> and Sn-based anode materials for lithium ion batteries is reviewed, and an outlook on future developments presented. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=b823474d'> </P>