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23篇 您的检索式:作者名="Changling Huang"
    题名 作者 年代 出处 被引量
1Genome Editing and Double-Fluorescence Proteins Enable Robust Maternal Haploid Induction and Identification in Maize显示文摘Le Dong Lina Li Changlin Liu Chenxu Liu Shuaifeng Geng Xinhai Li Changling Huang Long Mao Shaojiang Chen Chuanxiao Xie 2018Molecular Plant2018,11,9:22
2Genome Editing Enables Next-Generation Hybrid Seed Production Technology显示文摘The next-generation hybrid seed technology enables the successful production of sortable hybrid seeds from genic male sterile(GMS)lines and maintainers;however,it requires multiple laborious and complicated steps.Here,we designed a simple next-generation hybrid seed production strategy that takes advantage of the CRISPR/Cas9 technology to create a Manipulated GMS Maintainer(MGM)system via a single transformation.Under this schema,the maize male fertility gene ZmMS26 was nullified by removal of its fifth exon using the CRISPR/Cas9 system on a vector,and a second vector carrying a functional ZmMS26 cDNA was co-transformed to restore fertility.The second vector also contains a male gametophyte inactivation gene(ZmAA1)encoding maizeα-amylase driven by the pollen-specific promoter PG47 and an endosperm fluorescent marker(DsRED)driven by the barley endosperm aleurone-specific promoter Ltp2.The derived single-copy hemizygous MGM lines bore a mutated MS26 gene,leading to complete male sterility but normal vegetative growth and grain yield.The MGM system could prevent genetic transmission of the MGM elements via male gametophytes,providing an efficient method for sorting maintainer seeds labeled by DsRED.This strategy can be extended to any GMS gene and to hybrid crops other than maize.Xiantao Qi Congsheng Zhang Jinjie Zhu Changlin Liu Changling Huang Xinhai Li Chuanxiao Xie 2020Molecular Plant2020,13,9:18
3Current gene therapy for stomach carcinoma显示文摘Gastric cancer is common in China [1-42],and its early diagnosis and treatment in advanced stage are difficult [31-50].In recent years ,gene study in cancer is a hotspot ,and great progress has been achieved [41-80] .Cancer gene therapy has shifted from the imagination into the laboratory and clinical trials.Chang-Tai Xu~1 Lian-Tian Huang~1 Bo-Rong Pan~2 1 Editorial Department,the Journal of Fourth Military Medical University2 Oncology Center,Xijing Hospital,Fourth Military Medical University,169 Changle Xilu,Xi’an 710032,Shaanxi Province,China 2001World Journal of Gastroenterology2001,7,6:16
4Ag nanoparticles sensitize IR-induced killing of cancer cells显示文摘Ruizhi Xu Jun Ma Xinchen Sun ZhongpingChen Xiaoli Jiang Zhirui auo Lan Huang YangLi Meng Wang Changling Wang Jiwei Liu XuFan Jiayu Gu Xi Chen Yu Zhang Ning Gu 2009Cell Research2009,19,8:11
5Precise base editing of non-allelic acetolactate synthase genes confers sulfonylurea herbicide resistance in maize显示文摘Single-nucleotide polymorphisms contribute to phenotypic diversity in maize. Creation and functional annotation of point mutations has been limited by the low efficiency of conventional methods based on random mutation. An efficient tool for generating targeted single-base mutations is desirable for both functional genomics and precise genetic improvement. The objective of this study was to test the efficiency of targeted C-to-T base editing of two non-allelic acetolactate synthase(ALS) in generating sulfonylurea herbicide-resistant mutants. A CRISPR/Cas9 nickase-cytidine deaminase fused with uracil DNA glycosylase inhibitor(UGI) was employed to achieve targeted conversion of cytosine to thymine in ZmALS1 and ZmALS2. Both protoplasts and recovered mutant plants showed the activity of the cytosine base editor, with an in vivo efficiency of up to 13.8%. Transgene-free edited plants harboring a homozygous ZmALS1 mutation or a ZmALS1 and ZmALS2 double mutation were tested for their resistance at a dose of up to 15-fold the recommended limit of chlorsulfuron, a sulfonylurea herbicide widely used in agriculture. Targeted base editing of C-to-T per se and a phenotype verified in the generated mutants demonstrates the power of base editing in precise maize breeding.Yanmin Li Jinjie Zhu Hao Wu Changlin Liu Changling Huang Jinhao Lan Yanming Zhao Chuanxiao Xie 2020The Crop Journal2020,8,3:9
6Factors affecting genomic selection revealed by empirical evidence in maize显示文摘Genomic selection(GS) as a promising molecular breeding strategy has been widely implemented and evaluated for plant breeding, because it has remarkable superiority in enhancing genetic gain, reducing breeding time and expenditure, and accelerating the breeding process. In this study the factors affecting prediction accuracy(rMG) in GS were evaluated systematically, using six agronomic traits(plant height, ear height, ear length, ear diameter,grain yield per plant and hundred-kernel weight) evaluated in one natural and two biparental populations. The factors examined included marker density, population size, heritability,statistical model, population relationships and the ratio of population size between the training and testing sets, the last being revealed by resampling individuals in different proportions from a population. Prediction accuracy continuously increased as marker density and population size increased and was positively correlated with heritability; rMGshowed a slight gain when the training set increased to three times as large as the testing set. Low predictive performance between unrelated populations could be attributed to different allele frequencies, and predictive ability and prediction accuracy could be improved by including more related lines in the training population. Among the seven statistical models examined, including ridge regression best linear unbiased prediction(RR-BLUP), genomic BLUP(GBLUP), Bayes A, Bayes B, Bayes C, Bayesian least absolute shrinkage and selection operator(Bayesian LASSO), and reproducing kernel Hilbert space(RKHS), the RKHS and additive-dominance model(Add + Dom model) showed credible ability for capturing non-additive effects, particularly for complex traits with low heritability. Empirical evidence generated in this study for GS-relevant factors will help plant breeders to develop GS-assisted breeding strategies for more efficient development of varieties.Xiaogang Liu Hongwu Wang Hui Wang Zifeng Guo Xiaojie Xu Jiacheng Liu Shanhong Wang Wen-Xue Li Cheng Zou Boddupalli M.Prasanna Michael S.Olsen Changling Huang Yunbi Xu 2018The Crop Journal2018,6,4:8
7QTL analysis of ear leaf traits in maize(Zea mays L.)under different planting densities显示文摘Modem maize varieties have become more productive than ever, owing largely to increased tolerance of high plant density. However, the genetics of ear leaf traits under different densities remains poorly understood. In this study, Zhongdan 909 recombinant inbred lines(RILs) derived from a cross between Z58 and HD568 were genotyped for 3072 single-nucleotide polymorphisms(SNPs), and phenotyped for leaf length(LL), leaf width(LW), and leaf angle(LA) of the uppermost ear leaf under three planting densities(52,500,67,500, and 82,500 plants ha-1, respectively). A genetic map was then constructed using1358 high-quality SNPs. The total length of the linkage map was 1985.2 cM and the average interval between adjacent markers 1.46 cM. With increasing density, LL and LW decreased from 63.68 to 63.02 cm and from 8.56 to 8.21 cm, respectively, while LA increased from19.42° to 19.66°. All three traits had high heritabilities, of 0.75, 0.78, and 0.84, respectively.Using inclusive composite interval mapping, 23, 25, and 17 quantitative trait loci(QTL) were detected for LL, LW, and LA, respectively. Of these, 35 were simultaneously detected under two or three plant densities, while 30 were detected under only one. Sixty-five individual QTL explained 2.41% to 16.53% of phenotypic variation, while eight accounted for >10%.These findings will help us understand the genetic basis of leaf traits in maize as well as the response of maize to increased plant density.Hongwu Wang Qianjin Liang Kun Li Xiaojiao Hu Yujin Wu Hui Wang Zhifang Liu Changling Huang 2017The Crop Journal2017,5,5:7
8Novel Wx alleles generated by base editing for improvement of rice grain quality显示文摘Amylose content(AC),which is regulated by the Waxy(Wx)gene,is a major indicator of eating and cooking quality(ECQ)in rice(Oryza sativa).Thus far,only a limited number of mutations in the N-terminal domain of Wx were found to have a major impact on the AC of rice grains and no mutations with such effects were reported for other regions of the Wx protein.Here,nucleotide substitutions in the middle region of Wx were generated by adenine and cytosine base editors.The nucleotide substitutions led to changes in 15 amino acid residues of Wx,and a series of novel Wx alleles with ACs of 0.3%-29.43%(wild type with AC of 19.87%)were obtained.Importantly,the waxy~(abe2)allele showed a'soft rice'AC,improved ECQ,favorable appearance,and no undesirable agronomic traits.The transgenes were removed from the waxy~(abe2)progeny,generating a promising breeding material for improving rice grain quality.Xiaorui Huang Fei Su Sheng Huang Fating Mei Xiaomu Niu Changle Ma Hui Zhang Xiaoguo Zhu Jian-Kang Zhu Jinshan Zhang 2021Journal of Integrative Plant Biology2021,63,9:4
9Conversion of a normal maize hybrid into a waxy version using in vivo CRISPR/Cas9 targeted mutation activity显示文摘Waxy maize is a specialty maize that produces mainly amylopectin starch with special food or industrial values. The objective of this study was to overcome the limitations of wx mutant allele acquisition and breeding efficiency by conversion of parental lines from normal to waxy maize. The intended mutation activity was achieved by in vivo CRISPR/Cas9 machinery involving desired-target mutation of the Wx locus in the ZC01 background,abbreviated as ZC01-DTM^(wx). Triple selection was applied to segregants to obtain high genome background recovery with transgene-free wx mutations. The targeted mutation was identified, yielding six types of mutations among progeny crossed with ZC01-DTM^(wx).The amylopectin contents of the endosperm starch in mutant lines and hybrids averaged94.9%, while those of the wild-type controls were significantly(P < 0.01) lower, with an average of 76.9%. Double selection in transgene-free lines was applied using the Bar strip test and Cas9 PCR screening. The genome background recovery ratios of the lines were determined using genome-wide SNP data. That of lines used as male parents was as high as98.19% and that of lines used as female parents was as high as 86.78%. Conversion hybrids and both parental lines showed agronomic performance similar to that of their wild-type counterparts. This study provides a practical example of the efficient extension of CRISPR/Cas9 targeted mutation to industrial hybrids for transformation of a recalcitrant species.Xiantao Qi Hao Wu Haiyang Jiang Jinjie Zhu Changling Huang Xin Zhang Changlin Liu Beijiu Cheng 2020The Crop Journal2020,8,3:4
10Enhancing Genetic Gain through Genomic Selection: From Livestock to Plants显示文摘Although long-term genetic gain has been achieved through increasing use of modern breeding methods and technologies,the rate of genetic gain needs to be accelerated to meet humanity’s demand for agricultural products.In this regard,genomic selection(GS)has been considered most promising for genetic improvement of the complex traits controlled by many genes each with minor effects.Livestock scientists pioneered GS application largely due to livestock’s significantly higher individual values and the greater reduction in generation interval that can be achieved in GS.Large-scale application of GS in plants can be achieved by refining field management to improve heritability estimation and prediction accuracy and developing optimum GS models with the consideration of genotype-by-environment interaction and non-additive effects,along with significant cost reduction.Moreover,it would be more effective to integrate GS with other breeding tools and platforms for accelerating the breeding process and thereby further enhancing genetic gain.In addition,establishing an open-source breeding network and developing transdisciplinary approaches would be essential in enhancing breeding efficiency for small-and medium-sized enterprises and agricultural research systems in developing countries.New strategies centered on GS for enhancing genetic gain need to be developed.Yunbi Xu Xiaogang Liu Junjie Fu Hongwu Wang Jiankang Wang Changling Huang Boddupalli MPrasanna Michael SOlsen Guoying Wang Aimin Zhang 2020Plant Communications2020,1,1:4
11A phase 3,double-blind,randomized placebo-controlled efficacy and safety study of abiraterone acetate in chemotherapynaı¨ve patients with mCRPC in China,Malaysia,Thailand and Russia显示文摘Objective:This double-blind,placebo-controlled phase 3 study was designed to compare efficacy and safety of abiraterone acetate+prednisone(abiraterone)to prednisone alone in chemotherapy-naı¨ve,asymptomatic or mildly symptomatic metastatic castrationresistant prostate cancer(mCRPC)patients from China,Malaysia,Thailand and Russia.Methods:Adult chemotherapy-naı¨ve patients with confirmed prostate adenocarcinoma,Eastern Cooperative Oncology Group(ECOG)performance status(PS)grade 0e1,ongoing androgen deprivation(serum testosterone<50 ng/dL)with prostate specific antigen(PSA)or radiographic progression were randomized to receive abiraterone acetate(1000 mg,QD)t prednisone(5 mg,BID)or placebo t prednisone(5 mg,BID),until disease progression,unacceptable toxicity or consent withdrawal.Primary endpoint was improvements in time to PSA progression(TTPP).Results:Totally,313 patients were randomized(abiraterone:n Z 157;prednisone:n Z 156);and baseline characteristics were balanced.At clinical cut-off(median follow-up time:3.9 months),80% patients received treatment(abiraterone:n Z 138,prednisone:n Z 112).Median time to PSA progression was not reached with abiraterone versus 3.8 months for prednisone,attaining 58%reduction in PSA progression risk(HR=0.418;p<0.0001).Abirateronetreated patients had higher confirmed PSA response rate(50%vs.21%;relative odds=2.4;p<0.0001)and were 5 times more likely to achieve radiographic response than prednisonetreated patients(22.9%vs.4.8%,p=0.0369).Median survival was not reached.Most common(≥10% abiraterone vs.prednisone-treated)adverse events:bone pain(7%vs.14%),pain in extremity(6%vs.12%),arthralgia(10%vs.8%),back pain(7%vs.11%),and hypertension(15%vs.14%).Conclusion:Interim analysis confirmed favorable benefit-to-risk ratio of abiraterone in chemotherapy-naı¨ve men with mCRPC,consistent with global study,thus supporting use of abiraterone in this patient population.Dingwei Ye Yiran Huang Fangjian Zhou Keji Xie Vsevolod Matveev Changling Li Boris Alexeev Ye Tian Mingxing Qiu Hanzhong Li Tie Zhou Peter De Porre Margaret Yu Vahid Naini Hongchuan Liang Zhuli Wu Yinghao Sun 2017Asian Journal of Urology2017,4,2:3
12Irinotecan-involved regimens for advanced gastric cancer:A pooled-analysis of clinical trials显示文摘AIM:To assess the efficiency and toxicities of irinotecan (CPT-11)-involved regimens in patients with advanced gastric cancer.METHODS:Randomized phases Ⅱ and Ⅲ clinical trials on chemotherapy for advanced gastric cancer were searched from MEDLINE,EMbase,Cochrane Controlled Trials Register,and EBSCO.Relevant abstracts were manually searched.A total of 657 patients were analyzed for their overall response rate (ORR),time to treatment failure (TTF),overall survival (OS) rate,and toxicities.Overall survival rate,reported as hazard ratio (HR) with 95% CI,was used as the primary outcome measure.RESULTS:Four randomized controlled trials on chemotherapy for advanced gastric cancer were detected.The CPT-11-containing combination chemotherapy was not significantly advantageous over the non CPT-11containing combination chemotherapy for OS rate (HR =1.12,95% CI:0.92-1.36,P=0.266) and ORR [risk ratio (RR)=1.23,95% CI:0.71-2.14,P=0.458].However,the CPT-11-containing combination chemotherapy was significantly advantageous over the non CPT-11-containing combination chemotherapy for TTF (HR=1.35,95% CI:1.12-1.64,P=0.002).Grade 3/4 haematological toxicity (thrombocytopenia:RR=0.20,95% CI:0.09-0.48;P < 0.001) and gastrointestinal toxicity (diarrhea:RR=4.09,95% CI:2.42-6.93,P < 0.001) were lower in patients with advanced gastric cancer after CPT11-containing combination chemotherapy than after non CPT-11-containing combination chemotherapy.CONCLUSION:CPT-11-containing combination chemotherapy is advantageous over non CPT-11-containing combination chemotherapy for TTF with no significant toxicity.CPT-11-containing combination chemotherapy can be used in treatment of advanced gastric cancer.Dan-Ling Wang,Dong-Ying Gu,Hua-Ying Huang,Zhi Xu,Jin-Fei Chen,Department of Oncology,Affiliated Nanjing First Hospital,Nanjing Medical University,68 Changle Road and Medical School of Southeast University,87 Dingjiaqiao,Nanjing 210000,China 2010World Journal of Gastroenterology2010,16,46:2
13Genetic analysis and QTL mapping of stalk cell wall components and digestibility in maize recombinant inbred lines from B73 × By804显示文摘The cell wall composition and structure of the maize stalk directly affects its digestibility and in turn its feed value.Previous studies of stem quality have focused mostly on common maize germplasm,and few studies have focused on high-oil cultivars with high grain and straw quality.Investigation of the genetic basis of cell wall composition and digestibility of maize stalk using high-oil maize is desirable for improving maize forage quality.In the present study,a high-oil inbred line(By804)was crossed as male parent with the maize inbred line B73 to construct a population of 188 recombinant inbred lines(RILs).The phenotypes of six cell-wall-related traits were recorded,and QTL analysis was performed with a genetic map constructed with SNP markers.All traits were significantly correlated with one another and showed high broad-sense heritability.Of 20 QTLs mapped,the QTL associated with each trait explained 10.0%–41.1%of phenotypic variation.Approximately half of the QTL each explained over 10%of the phenotypic variation.These results provide a theoretical basis for improving maize forage quality by marker-assisted selection.Qi Wang Kun Li Xiaojiao Hu Huimin Shi Zhifang Liu Yujin Wu Hongwu Wang Changling Huang 2020The Crop Journal2020,8,1:2
14A classification-based method to estimate event-related potentials from single trial EEG显示文摘A novel method based on machine learning is developed to estimate event-related potentials from single trial electroencephalography. This paper builds a basic framework using classification and an optimization model based on this framework for estimating event-related potentials. Then the SingleTrialEM algorithm is derived by introducing a logistic regression model, which could be obtained by training before SingleTrialEM is used, to instantiate the optimization model. The simulation tests demonstrate that the proposed method is correct and solid. The advantage of this method is verified by the comparison between this method and the Woody filter in simulation tests. Also, the cognitive test results are consistent with the conclusions of cognitive science.HUANG ZhiHua LI MingHong ZHOU ChangLe MA YuanYe 2012Science China(Life Sciences)2012,55,1:2
15Integration of genomic selection with doubled-haploid evaluation in hybrid breeding: From GS 1.0 to GS 4.0 and beyond显示文摘DOUBLED-HAPLOID TECHNOLOGY FACES A GREAT CHALLENGE FOR HYBRID BREEDING,Ensuring food security for the ever-growing population is a common mission and a great challenge for agricultural scientists worldwide.Historically,advances in crop breeding and management practices have contributed substantially to crop productivity.Indeed,the substantial increase in global grain yields over the last eight decades is largely due to the adoption of hybrids.However,the rate of increase of hybrid yields began to slow down in the early 2000s,and since then,it has reached a plateau for many crops and regions(http://gffzzfa4d2e2b911e4942squcwfvfqnx5k66np.ffgz.tsg.suse.edu.cn).Therefore,we must find solutions to accelerating genetic gain and boost hybrid development,for which developing new breeding technologies provides novel creative opportunities.Junjie Fu Yangfan Hao Huihui Li Jochen C.Reif Shaojiang Chen Changling Huang Guoying Wang Xinhai Li Yunbi Xu Liang Li 2022Molecular Plant2022,15,4:2
16Ribonuclease H-like gene SMALL GRAIN2 regulates grain size in rice through brassinosteroid signaling pathway显示文摘Grain size is a key agronomic trait that determines the yield in plants.Regulation of grain size by brassinosteroids(BRs)in rice has been widely reported.However,the relationship between the BR signaling pathway and grain size still requires further study.Here,we isolated a rice mutant,named small grain2(sg2),which displayed smaller grain and a semi-dwarf phenotype.The decreased grain size was caused by repressed cell expansion in spikelet hulls of the sg2 mutant.Using map-based cloning combined with a Mut Map approach,we cloned SG2,which encodes a plant-specific protein with a ribonuclease H-like domain.SG2 is a positive regulator downstream of GLYCOGEN SYNTHASE KINASE2(GSK2)in response to BR signaling,and its mutation causes insensitivity to exogenous BR treatment.Genetical and biochemical analysis showed that GSK2 interacts with and phosphorylates SG2.We further found that BRs enhance the accumulation of SG2 in the nucleus,and subcellular distribution of SG2 is regulated by GSK2 kinase activity.In addition,Oryza sativa OVATE family protein 19(OsOFP19),a negative regulator of grain shape,interacts with SG2 and plays an antagonistic role with SG2 in controlling gene expression and grain size.Our results indicated that SG2 is a new component of GSK2-related BR signaling response and regulates grain size by interacting with Os OFP19.Yunshuai Huang Hui Dong Changling Mou Ping Wang Qixian Hao Min Zhang Hongmin Wu Fulin Zhang Tengfei Ma Rong Miao Kai Fu Yaping Chen Ziyan Zhu Cheng Chen Qikai Tong Zhuoran Wang Shirong Zhou Xi Liu Shijia Liu Yunlu Tian Ling Jiang Jianmin Wan 2022Journal of Integrative Plant Biology2022,64,10:1
17A Transcriptome Analysis of Neural Tissue of Litopenaeus vannamei After Acute Exposure to Alexandrium pacificum显示文摘Alexandrium pacificum(A.pacificum)is a typical paralytic shellfish poisonous dinoflagellate.Harmful algal blooms(HABs)caused by this species can bring serious environmental problems and economic losses to the aquaculture industry.In this study,transcriptome sequencing and analyses were performed on the neural tissue of Litopenaeus vannamei(L.vannamei)after acute exposure to A.pacificum disrupted solution for 72 h,and differentially expressed genes(DEGs)were identified.The results showed that,compared with the control samples,300 DEGs were identified in the experimental group,of which 194 were up-regulated,and 106 down-regulated.The gene ontology(GO)functional enrichment analysis showed that DEGs were significantly enriched in the cortical cytoskeleton organization,troponin complex,amylo-alpha-1,6-glucosidase and thymidine phosphorylase.Kyoto encyclopedia of genes and genomes(KEGG)enrichment analysis found that DEGs were mainly enriched in the oxidative phosphorylation process,intercellular tight junctions and mitophagy.The results showed that the proteoglycans,signaling pathways,and various metabolic processes that regulate cell proliferation,differentiation,and apoptosis all played an essential role in the response of L.vannamei to A.pacificum toxins.YANG Huijie HUANG Xianghu MA Yukun HU Zhangxi ZHANG Ning LI Changling ZHANG Yulei 2024Journal of Ocean University of China2024,23,2:0
18The Enhancement of Selectivity and Activity for Two-Electron Oxygen Reduction Reaction by Tuned Oxygen Defects on Amorphous Hydroxide Catalysts显示文摘Amorphous catalysts,thanks to their uniquely coordinated unsaturated properties and abundance of defect sites,tend to possess higher activity and selectivity than their crystalline counterparts.In this work,we report a facile and general solventcontrolled precipitation method to prepare hybrids of graphene oxide(GO)supporting amorphous metal hydroxide[A-M(OH)_(x)/GO,M=Cu,Co,and Mn],which provides us with tangible materials to study the structure–performance relationship of various amorphous oxides.The systematic investigation of A-Cu(OH)_(2)/GO by coupling ex situ/in situ characteristic techniques with electrochemical studies reveals that electrocatalytic activity and selectivity toward a two-electron oxygen reduction reaction(ORR)is highly dependent on the coordinated Cu catalytic sites and the disordered structure of A-Cu(OH)_(2).In situ X-ray absorption near-edge structure(XANES)and density functional theory(DFT)calculation verify that the degree of OH*poisoning(ΔG0 OH*)tuned by three-OH-coordinated Cu sites in amorphous structures plays a crucial role in selective catalysis of ORR for H_(2)O_(2) production.The optimized A-Cu(OH)_(2)/GO shows superior activity and high selectivity(~95%)toward H_(2)O_(2),as demonstrated by a zinc–air battery capable of on-site H_(2)O_(2) production with a rate as high as 3401.5 mmol h^(−1) g^(−1).Junheng Huang Changle Fu Junxiang Chen Nangan Senthilkumar Xinxin Peng Zhenhai Wen 2022CCS Chemistry2022,4,2:0
19A novel single-trial event-related potential estimation method based on compressed sensing显示文摘Cognitive functions are often studied using eventrelated potentials(ERPs)that are usually estimated by an averaging algorithm.Clearly,estimation of single-trial ERPs can provide researchers with many more details of cognitive activity than the averaging algorithm.A novel method to estimate single-trial ERPs is proposed in this paper.This method includes two key ideas.First,singular value decomposition was used to construct a matrix,which mapped singletrial electroencephalographic recordings(EEG)into a low-dimensional vector that contained little information from the spontaneous EEG.Second,we used the theory of compressed sensing to build a procedure to restore single-trial ERPs from this low-dimensional vector.ERPs are sparse or approximately sparse in the frequency domain.This fact allowed us to use the theory of compressed sensing.We verified this method in simulated and real data.Our method and dVCA(differentially variable component analysis),another method of single-trial ERPs estimation,were both used to estimate single-trial ERPs from the same simulated data.Results demonstrated that our method significantly outperforms dVCA under various conditions of signal-to-noise ratio.Moreover,the single-trial ERPs estimated from the real data by our method are statistically consistent with the theories of cognitive science.Zhihua Huang Minghong Li Shangchuan Yang Yuanye Ma Changle Zhou 2013Neuroscience Bulletin2013,29,6:0
20Critical Nodes Identification: A Non-Cooperative Method for Unknown Topology Information in Ad Hoc Networks显示文摘The foundation of ad hoc networks lies in the guarantee of continuous connectivity.However,critical nodes,whose failure can easily destroy network connectivity,will influence the ad hoc network connectivity significantly.To protect the network efficiently,critical nodes should be identified accurately and rapidly.Unlike existing critical node identification methods for unknown topology that identify critical nodes according to historical information,this paper develops a critical node identification method to relax the prior topology information condition about critical nodes.Specifically,we first deduce a theorem about the minimum communication range for a node through the number of nodes and deployment ranges,and prove the universality of the theorem in a realistic two-dimensional scenario.After that,we analyze the relationship between communication range and degree value for each node and prove that the greater number of nodes within the communication range of a node,the greater degree value of nodes with high probability.Moreover,we develop a novel strategy to improve the accuracy of critical node identification without topology information.Finally,simulation results indicate the proposed strategy can achieve high accuracy and low redundancy while ensuring low time consumption in the scenarios with unknown topology information in ad hoc networks.Wenwei Yue Peiang Zuo Wengang Li Yao Zhang Yunfeng Zhang Changle Li Jun Huang 2023China Communications2023,20,7:0
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