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Video Stabilization via Prediction with Time-Series Network and Image Inpainting with Pyramid Fusion

Chinese Journal of Electronics 2021年第6期30卷 1103-1110页

作者： CHENG Keyang LI Shichao rong lan WANG Wenshan SHI Wenxi ZHAN Yongzhao School of Computer Science and Communication Engineering Jiangsu University Jiangsu Province Big Data Ubiquitous Perception and Intelligent Agricultural Application Engineering Research Center Cyber Space Security Academy of Jiangsu University National Engineering Laboratory for Public Safety Risk Perception and Control by Big Data Xinjiang Lianhaichuangzhi Information Technology Co. Ltd.

Due to the poor filling effect of the video image defect commonly used in the video stabilization field, the video is seemed still unstable after the image stabilization process, which seriously affects the visual effect. To solve this problem, we improve a video stabilization method based on time-series network prediction and pyramid fusion restoration is proposed to optimize the visual effect after image *** flow of the proposed method is as follows: First,it is adaptive to determine whether the defect of the corresponding frame at the current time needs padding inpainting. Then, for the frame that needs to be inpainting,the frames generated before the current moment are sent to the model combining the convolutional neural networks and the gate recurrent unit to predict the part to be filled. Next the current defect image and the complete image to be filled are brought into the Laplacian pyramid reconstruction, and the improved weighted optimal suture is introduced for splicing during the fusion. Finally, the video frame is cut after reconstruction. The method is tested on a data set composed of videos commonly used in the field of video stabilization. The experimental results show that the average peak signal to noise ratio of the method is 2 to 5 d B higher than that of the comparison algorithm, and the average structural similarity index is improved by about 2% to 7% compared with the contrast algorithm.

关键词： image restoration image sequences video frame cutting improved weighted optimal suture gate recurrent unit video signal processing video stabilization method image fusion Laplacian pyramid reconstruction padding inpainting image resolution neural nets convolutional neural networks video image defect pyramid fusion restoration image inpainting visual effect optimization image reconstruction time-series network prediction image stabilization process

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A new cytotoxic bufadienolide from Chinese medicine Chansu

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Chinese Chemical Letters 2008年第12期19卷 1445-1446页

作者： Xiu lan Xin rong lan Jian Huang Xiao Jie Wang Jing Ming Jia School of Traditional Chinese Medicines Shenyang Pharmaceutical University Shengyang 110016 China Beijing Vocational College of Electronic Science and Technology Beijing 100029 China

A new cytotoxic bufadienolide was isolated from the traditional Chinese medicine-Chansu. The structure of new compound was elucidated on the basis of spectral methods including 2D NMR. And it showed strong in vitro cy... 详细信息

关键词： Bufadienolide Steroid Cytotoxicity Chansu

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Phase behavior of binary system of bromobenzene-chlorobenzene confined in SBA-15 and MCM-41

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Chinese Chemical Letters 2011年第12期22卷 1497-1500页

作者： Xiao Zheng lan Hai rong Pei Chuan Xian Cheng College of Chemistry and Materials Science Shandong Agriculture University Taian 271018 China

Phase behavior of binary system of bromobenzene-chlorobenzene （C6H5Br-C6H5Cl） confined in SBA-15 and MCM-41 （pore diameter 8 nm, 3.8 nm, respectively） has been investigated by means of differential scanning calorimetry （DSC）. Phase diagram of C6H5Br-C6H5Cl system confined in SBA-15 is a type of the complete miscible both in liquid and solid state, the same phase behavior as the bulk system. However, the phase diagram comprises only one boundary line, which is shifted down 22-36 K with respect to the bulk system. C6H5Br-C6H5Cl or the mixture within nanopores of MCM-41 is nonfreezing. The different phase behavior of the system confined in SBA-15 and MCM-41 is thought mainly due to the relative size of pore to molecule. （C） 2011 Xiao Zheng lan. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

关键词： Phase behavior Confinement SBA-15 MCM-41 Phase diagram

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PDMS Rod-SBSE System Coupled with Gas Chromatography for Determination of PAHs in Aqueous Samples

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Chemical Research in Chinese Universities 2011年第5期27卷 742-745页

作者： CHENG Chuan-xian PEI Hai-rong lan Xiao-zheng College of Chemistry and Material Science Shandong Agricultural University Tai ＇an 2 71018 P. R. China

A method for the analysis of trace polycyclic aromatic hydrocarbons（PAHs） in aqueous samples has been established by polydimethylsiloxane（PDMS） rod aided stir bar sorptive extraction（SBSE）. The homemade PDMS rod has a size of 30 mm×3 mm o.d. with a volume of ca. 200 μL, stable in thermal desorption process. The enriched PAHs by the PDMS rod were released in a homemade thermal desorption system coupled with gas chromatography. Experimental parameters for extraction of six PAHs were optimized including extraction time, pH, ionic strength and temperature of solution. The procedure has good recoveries of 80.0%―100.3% and very low limits of detection of 4.0―33 ng/L. PAHs in rain and river water were analyzed by this method.

关键词： Polydimethylsiloxane(PDMS) rod Stir bar sorptive extraction(SBSE) Polycyclic aromatic hydrocarbon

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Web-Based Parallel Monte Carlo Simulation Platform for Financial Computation

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Wuhan University Journal of Natural Sciences 2006年第1期11卷 151-154页

作者： lan rong ZHENG Shou-qi GUI Xiao-lin School of Electronic and Information Xi＇an Jiaotong University Xi＇an 710049 Shaanxi China School of Economic and Finance Xi＇an Jiaotong University Xi＇an 710064 Shaanxi China

Using Java, Java enabled Web and object-oriented programming technologies, a framework is designed to or ganize multicornputer system on lntranet quickly to complete Monte Carlo simulation parallelizing, The high-performance computing enviromnent is embedded in Web server so it can be accessed more easily. Adaptive parallelism and eager scheduling algorithm are used to realize load balancing, parallel processing and system fault-tolerance. Independent sequence pseudo-randorn number generator schemes to keep the parallel simulation availability. Three kinds of stock option pricing models as instances, ideal speedup and pricing results obtained on test bed. Now, as a Web service, a high-performance financial derivative security-pricing platform is set up for training and studying. The framework can also be used to develop other SPMD （single procedure multiple data） application. Robustness is still a major problem for further research.

关键词： Web-based simulation distributed computing Monte Carlo simulation stock option pricing

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A new lavandulyl flavonoid from Sorphora flavescens Ait

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Chinese Chemical Letters 2008年第12期19卷 1453-1455页

作者： Dan Liu rong lan Xiu lan Xin Xiao Jie Wang Dong Hai Su Guo Wei Yang School of Science Dalian Nationalities University Dalian 116600 China Beijing Vocational College of Electronic Science and Technology Beijing 100029 China

A new lavandulyl flavonoid was isolated from the rhizome of Sorphora flavescens. The structure of new compound was elucidated on the basis of spectral methods including 2D NMR. And it showed potent cytotoxic activity ... 详细信息

关键词： Sorphora flavescens Ait Flavonoid Lavandulyl flavanone Cytotoxicity

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Analysis on conducted coupling of electrical fast transient burst in mines

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Journal of Coal Science & Engineering(China) 2012年第2期18卷 207-212页

作者： FENG De-wang lan Jian-rong School of Computer&Information Science Fujian Agriculture and Forestry UniversityFuzhou 350002China School of Mechanical&Electrical Engineering Fujian Agriculture and Forestry UniversityFuzhou 350002China School of Mechanical Electronic&Information Engineering China University of Mining&Technology(Beijing)Beijing100083China

Under the inflammable or explosive environment, the direct measurement methods by opening up the explo- sion-proof shell of electrical installations were not adopted. So, it＇s impossible to have a quantitative analysis on the limit of conducted disturbance for electrical fast transient burst （EFT/B） in such dangerous environments. Transient conducted coupling model, which using EFT/B as its excitation source, can be built based on circuit and electromagnetic field theory. Furthermore, numerical analysis was performed. The results indicate that the capacitive coupling voltage is the same polarity as EFT/B, and is the main disturbance form of conducted coupling in mines. The inductive coupling voltage is reversed polarity with the ca- pacitive coupling voltage, and both peaks appear only in the rising time of EFT/B, which increase with the rising of load resistance. Moreover, the cable coupling voltage on the side of disturbance source is higher than the one on the other side in tunnel. To reduce the common resistance can suppress the resistive coupling disturbance.

关键词： conducted coupling electrical fast transient burst numerical analysis

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Impact of frailty on postoperative outcomes after hepatectomy:A systematic review and meta-analysis

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World Journal of Gastrointestinal Surgery 2024年第7期16卷 2319-2328页

作者： Yao-Jia Lv Guang-Xing Xu Jia-rong lan Day Surgery Ward Huzhou Central HospitalThe Affiliated Central Hospital of Huzhou UniversityHuzhou 313000Zhejiang ProvinceChina School of Basic Medical Sciences Zhejiang Chinese Medical UniversityHangzhou 310053Zhejiang ProvinceChina Department of Medicine Huzhou Traditional Chinese Medicine Hospital Affiliated to Zhejiang Chinese Medical UniversityHuzhou 313000Zhejiang ProvinceChina

BACKGROUND The impact of frailty on postoperative outcomes in patients undergoing hepatectomy is still *** To study the influence of frailty on postoperative outcomes,such as mortality,rate of complications,and length of hospitalization,following *** PubMed,EMBASE,and Scopus databases were searched for observational studies with adult(≥18 years)patients after planned/elective hepatectomy.A randomeffects model was used for all analyses,and the results are expressed as weighted mean difference(WMD),relative risk(RR),or hazards ratio(HR)with 95%confidence interval(CI).RESULTS Analysis of the 13 included studies showed a significant association of frailty with elevated risk of in-hospital mortality(RR=2.76,95%CI:2.10-3.64),mortality at 30 d(RR=4.60,95%CI:1.85-11.40),and mortality at 90 d(RR=2.52,95%CI:1.70-3.75)in the postoperative *** patients had a poorer long-term survival(HR=2.89,95%CI:1.84-4.53)and higher incidence of“any”complications(RR=1.69,95%CI:1.40-2.03)and major(grade III or higher on the Clavien-Dindo scale)complications(RR=2.69,95%CI:1.85-3.92).Frailty was correlated with markedly lengthier hospital stay(WMD=3.65,95%CI:1.45-5.85).CONCLUSION Frailty correlates with elevated risks of mortality,complications,and prolonged hospitalization,which need to be considered in surgical *** research is essential to formulate strategies for improved outcomes in this vulnerable cohort.

关键词： Frailty Frail adults Hepatic resection Hepatectomy Complications Mortality Survival Clinical outcomes Meta-analysis

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Softening and Melting Behavior of Mixed Burden for Oxygen Blast Furnace

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Journal of Iron and Steel Research International 2013年第5期20卷 11-16页

作者： AN Xiu-wei WANG Jing-song lan rong-zong HAN Yi-hua XUE Qing-guo State Key Laboratory of Advanced Metallurgy School of Metallurgical and Ecological Engineering University of Science and Technology Beijing

The behaviors of mixed burden in the cohesive zone of oxygen blast furnace were studied by softening and melting tests, and the influence of reducing gas and burden basicity on the softening and melting behaviors of mixed burden was also investigated. The results indicated that the softening range became wide, however, the melting range narrowed sharply in the atmosphere of oxygen blast furnace. The permeability of burden in the oxygen blast furnace was obviously improved comparing with the conventional blast furnace. In addition, the content of sulphur in the dripping iron of oxygen blast furnace was much lower than that of conventional blast furnace, however, the content of carbon increased. An optimum basicity of burden, which could lead to the appearance of the narrower melting range and better permeability of burden, was obtained in the atmosphere of oxygen blast furnace.

关键词： oxygen blast furnace softening melting mixed burden basicity reduction degree

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TLR2 signaling subpathways regulate TLR9 signaling for the effective induction of IL-12 upon stimulation by heat-killed Brucella abortus

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Cellular & Molecular Immunology 2012年第4期9卷 324-333页

作者： Chun-Yan Zhang Nan Bai Zhu-Hong Zhang Ning Liang lan Dong rong Xiang Cheng-Hu Liu Department of Immunology Medical School Nankai University Tianjin China

Brucella abortus is a Gram-negative intracellular bacterium that induces MyD88-dependent IL-12 production in dentritic cells （DCs） and a subsequent protective Thl immune response. Previous studies have shown that the Toll-like receptor 2 （TLR2） is required for tumor-necrosis factor （TNF） production, whereas TLR9 is responsible for IL-12 induction in DCs after exposure to heat-killed Brucella abortus（HKBA）. TLR2 is located on the cell surface and is required for optimal microorganism-induced phagocytosis by innate immune cells; thus, phagocytosis is an indispensable preliminary step for bacterial genomic DNA recognition by TLR9 in late-endosomal compartments. Here, we hypothesized that TLR2-triggered signals after HKBA stimulation might cross-regulate TLR9 signaling through the indirect modulation of the phagocytic function of DCs or the direct modulation of cytokine gene expression. Our results indicate that HKBA phagocytosis was TLR2-dependent and an essential step for IL-12p40 induction. In addition, HKBA exposure triggered the TLR2-mediated activation of both p38 and extracellular signal-regulated kinase 1/2 （ERKI/2）. Interestingly, although p38 was required for HKBA phagocytosis and phagosome maturation, ERK1/2 did not affect these processes but negatively regulated IL-12 production, Although p38 inhibitors tempered both TNF and IL.12 responses to HKBA, pre-treatment with an ERKI/2 inhibitor significantly increased IL-12p40 and abrogated TNF production in HKBA-stimulated DCs. Further experiments showed that the signaling events that mediated ERK1/2 activation after TLR2 triggering also required HKBA-induced Ras activation. Furthermore, Ras-guanine nucleotide-releasing protein 1 （RasGRP1） mediated the TLR2-induced ERKI/2 activation and inhibition of IL-12p40 production. Taken together, our results demonstrated that HKBA-mediated TLR2-triggering activates both the p38 and ERK1/2 signaling subpathways, which divergently regulate TLR9 activation at several levels to

关键词： ERK interleukin-12 phagocytosis p38 TLR2 TLR9 TNF

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