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Optimization of layered multicast with network coding and genetic algorithm

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The Journal of China Universities of Posts and Telecommunications 2009年第3期16卷 52-58,83页

作者： SI Jing-jing ZHUANG Bo-jin cai an-ni School of Information and Communication Engineering Beijing University of Posts and Telecommunications Beijing 100876 China School of Information Engineering Yanshan University Qinhuangdao 066004 China

This article studies the problem of constructing optimal layered multicast with network coding for heterogeneous networks. Based on the flexibility of layered source coding, a global-favorable optimization scheme is proposed, which maximizes the aggregate throughput of heterogeneous sink nodes for layered multicast with network coding by determining the optimal bit rates of the layers. To solve this global-favorable optimization scheme, especially in the large-scale heterogeneous networks, a new problem-specific genetic algorithm （GA） is further proposed. It not only searches efficiently for the optimal allocation of layer bit rates, but also guarantees the validity of candidate solutions that this new GA-based optimization scheme could obtain layered multicast with network coding, even in the large-scale in the whole evolutionary process. Simulation results demonstrate efficiently the optimal or satisfactorily near-optimal bit rates for heterogeneous networks.

关键词： heterogeneity layered multicast GA network coding

Fingerprint singular points extraction based on the properties of orientation model

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The Journal of China Universities of Posts and Telecommunications 2011年第1期18卷 98-104页

作者： SU Fei SUN Peng WANG Bo-tao cai an-ni School of Information and Communication Engineering Beijing University of Posts and Telecommunications Beijing 100876 China Department of Automation Tsinghua University Beijing 100084 China College of Electronic Information and Control Engineering Beijing University of Technology Beijing 100124 China

A novel method for fingerprint singular points extraction including location and orientation is proposed based on some properties of the orientation field models. Singular points are located by clustering the results of corner detection. Then, through examining the sub-block orientation fields at a number of selected positions on concentric circles centered about the located singular point, an iterative method based on the orientation differences is proposed to compute the orientation of the core point. Experimental results on niST4 and FVC2002 four databases demonstrate the proposed method can consistently locate singular points with the high accuracy. The location and orientation of the detected singular points can be used for alignment （translation and rotation） parameters in fingerprint matching.

关键词： fingerprint orientation model singular points core delta

Subsequent Treatment after Transarterial Chemoembolization Failure/Refractoriness: A Review Based on Published Evidence

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Journal of Clinical and Translational Hepatology 2022年第4期10卷 740-747页

作者： Shen Zhang Wan-Sheng Wang Bin-Yan Zhong cai-Fang ni Department of Interventional Radiology The First Affiliated Hospital of Soochow UniversitySuzhouJiangsuChina

Transarterial chemoembolization(TACE)is widely applied for the treatment of hepatocellular *** TACE is often required in clinical practice because a satisfactory tumor response may not be achieved with a single ***,repeated TACE procedures can impair liver function and increase treatment-related adverse events,all of which prompted the introduction of the concept of“TACE failure/refractoriness”.Mainly based on evidence from two retrospective studies conducted in Japan,sorafenib is recommended as the first choice for subsequent treatment after TACE failure/*** studies have investigated the outcomes of other subsequent treatments,including locoregional,other molecular targeted,anti-programmed death-1/anti-programed death ligand-1 therapies,and combination therapies after TACE failure/*** this review,we summarize the up-to-date information about the outcomes of several subsequent treatment modalities after TACE failure/refractoriness.

关键词： Transarterial chemoemboization Failure Refractoriness Subsequent treatment

Studies on LCST of poly (N-isopropylacrylamide-co-acrylic acid-co-N-diacetone acrylamide)

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Chinese Chemical Letters 2007年第1期18卷 79-80页

作者： cai Hua ni Xiao Xia Zhu Qing Lan Wang Xian Yu Zeng School of Chemical and Material Engineering Southern Yangtze University Wuxi 214036 China Key Laboratory of Functional Polymer Materials School of Chemistry Polymer Institute Nankai University Tianjin 300073 China College of Material Science and Engineering Beijing University of Chemical Technology Beijing 100029 China

Linear copolymers from N-isopropylacrylamide （niPA）, acrylic acid （AA） and diacetone acrylamide （DAA） have been prepared. The effect of composition, ionic strength and pH on their lower critical solution tempera... 详细信息

关键词： LCST Thermo-responsive N-Isopropylacrylamide N-Diacetone acrylamide

Visible Watermarking Technique for MPEG-2 Downsampling Transcoding in the DCT Domain

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The Journal of China Universities of Posts and Telecommunications 2005年第2期12卷 55-58,75页

作者： DU Yao-gang cai an-ni Telecommnication Engineering School Beijing University of Posts and Telecommunications Beijing 100876 P.R. China Foundation Department Beijing Institute of Electronic Science and Technology Beijing 100070 P.R. China

To locate the right places for embedding watermark signals, and to set the proper streng-th of the embedded watermark signal are two critical problems for obtaining a robust and transpar-ent watermark in color images. In this paper, a DCT domain visible watermarking scheme based on the luminance and texture features and alligned with transcoding from MPEG-2 to MPEG-1 is proposed. In this scheme, the location of the visible watermark is chosen at the block with minimum number of nonzero DCT coefficients in the I-frames. When embedding the visible watermark （ such as video DC image ） into the unmarked original image, the embedding factors are determined with the local luminance feature and texture features of the original image and watemark image by utilizing DC and 3AC coefficients only. Experimental results demonstrate that the proposed scheme not only provides good fidelity and robustness against MPEG-2 downscaling transcoding, but also achieves a low Computational complexity.

关键词： visible watermarking downsampling transcoding computational complexity

SVM-based loss differentiation algorithm for wired-cum-wireless networks

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The Journal of China Universities of Posts and Telecommunications 2009年第4期16卷 104-111页

作者： DENG Qian-hua ,cai an-ni School of Telecommunication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China School of Telecommunication Engineering Beijing University of Posts and Telecommunications Beijing 100876 China

In a hybrid wired-cum-wireless network environment, packet loss may happen because of congestion or wireless link errors. Therefore, differentiating the cause is important for helping transport protocols take actions to control congestion only when the loss is caused by congestion. In this article, an end-to-end loss differentiation mechanism is proposed to improve the transmission performance of transmission control protocol （TCP）-friendly rate control （TFRC） protocol. Its key design is the introduction of the outstanding machine learning algorithm - the support vector machine （SVM） into the network domain to perform multi-metric joint loss differentiation. The SVM is characterized by using end-to-end indicators for input, such as the relative one-way trip time and the inter-arrival time of packets fore-and-aft the loss, while requiring no support from intermediate network apparatus. Simulations are carried out to evaluate the loss differentiation algorithm with various network configurations, such as with different competing flows, wireless loss rate and queue size. The results show that the proposed classifier is effective under most scenarios, and that its performance is superior to the ZigZag, mBiaz and spike （ZBS） scheme.

关键词： machine learning SVM TCP-friendly rate control (TFRC) congestion control

Transarterial chemoembolization failure/refractoriness: A scientific concept or pseudo-proposition

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World Journal of Gastrointestinal Surgery 2022年第6期14卷 528-537页

作者： Shen Zhang Bin-Yan Zhong Lei Zhang Wan-Sheng Wang cai-Fang ni Department of Interventional Radiology The First Affiliated Hospital of Soochow UniversitySuzhou 215006Jiangsu ProvinceChina

Multi-session transarterial chemoembolization(TACE)is usually needed for the treatment of intermediate-stage hepatocellular carcinoma(HCC),but it may not always have a positive influence on prognosis due to high heterogeneity of *** avoid ineffective repeated TACE,the concept of TACE failure/refractoriness has been proposed by several organizations and is being addressed using tyrosine kinase *** concept of TACE failure/refractoriness is controversial due to ambiguous definitions and low evidence-based *** date,only a few studies have examined the rationality concerning the definition of TACE failure/refractoriness,although the concept has been introduced and applied in many TACE-related clinical *** review focuses on some of the issues related to different versions of TACE failure/refractoriness,the rationality of related definitions,and the feasibility of continuing TACE after so-called failure/refractoriness based on published evidence.A suggestion to re-define TAEC failure/refractoriness is also put forward.

关键词： Hepatocellular carcinoma Transarterial chemoembolization Failure Refractoriness

A novel Li-ion supercapattery by K-ion vacant ternary perovskite fluoride anode with pseudocapacitive conversion/insertion dual mechanisms

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Rare Metals 2022年第7期41卷 2491-2504页

作者： Yong-Fa Huang Rui Ding Dan-Feng Ying Yu-Xi Huang Tong Yan cai-ni Tan Xiu-Juan Sun En-Hui Liu Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education College of ChemistryXiangtan UniversityXiangtan 411105China

An innovative K+vacant ternary perovskite fluoride(K_(0.89)ni_(0.02)Co_(0.03)Mn_(0.95)F_(3.0),KNCMF-3#)anode was designed for advanced Li-ion supercapattery(i.e.,Li-ion capacitors/batteries,LIC/Bs).Owing to the conversion/insertion dual mechanisms and fast pseudocapacitive con-trol dynamics,the KNCMF-3#electrode exhibits superior electrochemical performance,especially the excellent cycle performance(467%(229 mAh·g^(-1))/1000 cycles/2 A·g^(-1)).Moreover,the hybrid KNCMF-3#/reduced gra-phene oxide(rGO)electrode can further increase the electrochemical performance(217-97 mAh·g^(-1)/0.1-3.2 A·g^(-1),150%(197 mAh·g^(-1))/1000 cycles/2 A·g^(-1)).Also,a novel capacitor/battery cathode,activated carbon(AC)+LiFePO_(4)+graphene(AC+LFP+G),exhibits impres-sive performance(128-82 mAh·g^(-1)/0.1-3.2 A·g^(-1),84%/1000 cycles/2 A·g^(-1)).By the synergistic optimization of anode and cathode,the Li-ion supercapattery KNCMF-3#@rGO//AC+LFP+G demonstrates remarkable per-formance,for example,111.9-23.8 Wh·kg^(-1)/0.4-8.0 kW·kg^(-1)/82%/2000 cycles/5 A·g^(-1)/0-4 V,which is superior to KNCMF-3#//AC LICs,KNCMF-3#@rGO//AC LICs,KNCMF-3#//AC+LFP+G LIC/*** all,the novel Li-ion supercapattery idea adds a promising per-spective to develop advanced energy storage devices.

关键词： Perovskite fluoride Defect Anode Li-ion supercapattery Pseudocapacitive

Runx3 might participate in regulating dendriti cell function in patients with irritable bowel syndrome

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Asian Pacific Journal of Tropical Medicine 2014年第9期7卷 754-756页

作者： Hua-Zhi Wu Man-ni cai Yu An Cheng Lan Jia-Li Wei Xiao-ning Sun ningxia Medical University Department of Gastroenterology Ningxia People's Hospital Department of Gastroenterology Hainan Provincial People's Hospital

Objective:To evaluate the expression levels and correlations among the expressions of transforming growth factor-β1（TGF-β1）,Kunx3 and CD83 in colonic mucosal specimens from IBS ***:A total of 40 patients were selected,who were confirmed as IBS by Rome III standard and 40 healthy volunteers served as *** mucosal specimens of each subject were collected from colon sigmoideum with biopsy ***3,TGF-β1?and CD83(the marker for immunecompetent mature dendritic cells（DCs）mRNA in the sigmoid colon tissue were measured by real-time fluorescence quantitative ***:Compared with the control group,CD83 mRNA expressions were higher in patients with IBS than in healthy controls（P0.05）.Conclusions:The increase of abnormal dendritic cells might influence the occurrence and development of ***-β1 signal pathway might not be involved in Runx 3-regulated maturation of dendritic cells in IBS.

关键词： Irritable bowel syndrome Runt-related transcription factor 3 Transforming growth factor-beta(1) Dendriti cell CD83