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| 1 | Preparation and Performance of Salt Tolerance and Thermal Stability Cellulose Nanofibril Hydrogels and Their Application in Drilling Engineering显示文摘The poor salt tolerance,thermal stability,and environmental performance of petrochemicals can severely limit their applications in drilling engineering.In this study,cellulose nanofibril(CNF)hydrogels with improved salt tolerance and thermal stability were prepared,and their filtration performance was evaluated.The hydrogels were prepared through the simultaneous grafting of 2-acrylamido-2-methylpropane sulfonic acid(AMPS)and butyl acrylate(BA)onto the CNF surface through ceric ammoniumnitrate-induced radical polymerization.The modified and original CNF samples were characterized using Fourier Transform infrared spectroscopy(FT-IR)and rheological measurements.The FT-IR analysis results showed that both AMPS and BA were grafted onto the CNF backbone,affirming the successful preparation of the grafted CNFs.The rheological analysis results showed that the modified CNF hydrogels exhibited significantly improved salt tolerance,thermal stability,and“salt-thickening”effect.Moreover,the results of the fluid loss test showed that the modified CNF hydrogels exhibited a much better fluid loss control than the original CNF hydrogels.In addition,after adding 2%modified CNF hydrogels as a filtrate reducer in the drilling fluids prepared with a 6%combined salt solution,the filtrate loss was significantly reduced even after aging for 72 h at 160℃. | XiongLi Liu An Wang ChunPing Wang JiaLei Qu YangBing Wen Bin Chen ZhongGuang Wang BinBin Wu ZhaoYang Yuan Bing Wei | 2019 | Paper And Biomaterials2019，4，2： | 7 |
| 2 | High strength and ductility of 34CrNiMo6 steel produced by laser solid forming显示文摘Because of the excellent mechanical properties of 34 CrNiMo6 steel, it is widely used in high-value components. Many conventional approaches to strengthening-steels typically involve the loss of useful ductility.In this study, 34 CrNiMo6 Steel having high strength and ductility is produced by laser solid forming(LSF)with a quenching-tempering(QT) treatment. Tempering of bainite is mainly by solid phase transformation in the previous LSF layers during the LSF process. The stable microstructure of LSF consists of ferrite and fine carbides. The microstructure transfers to tempered sorbite after heat-treatment. The tensile properties of the LSF steel meet those of the wrought standard. The UTS and elongation of LSF sample at 858 MPa, 19.2%, respectively, are greater than those of the wrought. The QT treatment enhanced the ultimate tensile strength and yield strength of the LSF sample. The ultimate tensile strength, yield strength, reduction in area, and elongation of the LSF+QT sample at 980 MPa, 916 MPa, 58.9%, and 13.9%,respectively, are greater than those of the wrought standard. The yield strength of the LSF+QT sample is approximately 1.27 times that of the wrought. The LSF samples failed in a ductile fracture mode, while the LSF+QT samples showed mixed-mode failure. The defects have only a small effect on the tensile properties owing to the excellent ductility of the LSF sample. | Chunping Huang Xin Lin Fencheng Liu Haiou Yang Weidong Huang | 2019 | Journal of Materials Science & Technology2019，35，2： | 6 |
| 3 | Vision Based Hand Gesture Recognition Using 3D Shape Context显示文摘Hand gesture recognition is a popular topic in computer vision and makes human-computer interaction more flexible and convenient.The representation of hand gestures is critical for recognition.In this paper,we propose a new method to measure the similarity between hand gestures and exploit it for hand gesture recognition.The depth maps of hand gestures captured via the Kinect sensors are used in our method,where the 3D hand shapes can be segmented from the cluttered backgrounds.To extract the pattern of salient 3D shape features,we propose a new descriptor-3D Shape Context,for 3D hand gesture representation.The 3D Shape Context information of each 3D point is obtained in multiple scales because both local shape context and global shape distribution are necessary for recognition.The description of all the 3D points constructs the hand gesture representation,and hand gesture recognition is explored via dynamic time warping algorithm.Extensive experiments are conducted on multiple benchmark datasets.The experimental results verify that the proposed method is robust to noise,articulated variations,and rigid transformations.Our method outperforms state-of-the-art methods in the comparisons of accuracy and efficiency. | Chen Zhu Jianyu Yang Zhanpeng Shao Chunping Liu | 2021 | IEEE/CAA Journal of Automatica Sinica2021，8，9： | 5 |
| 4 | Generation and Analysis of Pathogenicity-related Gene Mutants of Colletotrichum gloeosporioides Using a Novel Promoter Trapping System显示文摘Agrobacterium tumefaciens-mediated transformation(ATMT) is an efficient tool for insertional mutagenesis and is used in a wide variety of plants. This paper reports a promoter trapping method to generate mutants in the filamentous fungus,Colletotrichum gloeosporioides,by ATMT insertion of a trapping vector(pCAHPH) that carries a promoterless hygromycin phosphotransferase(hph) gene. Transformants were selected on the media containing 200 μg/mL hygromycin B,and screened for pathogenicity-related gene mutants. Their pathogenicity-related mutants T-DNA flanking sequences were then cloned and analyzed. Hph genes were amplified from mutant genomic DNA but not from wild-type DNA,indicating that the phenotypic alternations of these mutants were the results of T-DNA insertion. T-DNA flanking sequences were obtained using modified thermal asymmetric interlaced PCR. Two right-sided flanking sequences were highly homologous to proteins from other species. | Zheng Xiaolan Liu Yan Wei Xiaohui He Chunping Wu Weihuai Liang Yanqiong Li Rui Zheng Fucong | 2013 | Plant Diseases and Pests2013，4，3： | 3 |
| 5 | Linking plant spatial aggregation with reproductive traits and near-source seed dispersal: ecological adaptation to heavy grazing显示文摘植物的生态适应策略一直备受生态学者的关注,然而很少有研究能够整体地、系统地揭示植物适应草食动物的生态过程。本研究以内蒙古荒漠草原建群种短花针茅为研究对象,分析了重度放牧和不放牧处理下短花针茅的繁殖个体性状、种子性状以及土壤种子库和种群空间格局。研究结果表明,生殖个体性状方面,生殖枝数量对营养枝数量有正向影响;土壤种子库方面,短花针茅生殖个体基部的土壤种子库中短花针茅密度显著高于旁边裸地土壤种子库中短花针茅的密度,且与种子性状和裸地土壤种子库显著负相关;在种群空间格局方面,重度放牧下短花针茅种群空间聚集分布。我们的结果认为在重度放牧处理下,生殖活动在短花针茅的资源分配中处于主导地位;短花针茅植物种群通过调控种子形态特征,采用就近扩散的生态策略,促进了幼年种群与成年种群在较小的尺度上空间正关联,从而形成“安全岛”。 | Wenting Liu Shixian Sun Chunping Zhang Shijie Lv Quanmin Dong | 2020 | Journal of Plant Ecology2020，13，4： | 2 |
| 6 | miRNA-dysregulation associated with tenderness variation induced by acute stress in Angus cattle显示文摘miRNAs are a class of small, single-stranded, non-coding RNAs that perform post-transcriptional repression of target genes by binding to 3' untranslated regions. Research has found that miRNAs involved in the regulation of many metabolic processes. Here we uncovered that the beef quality of Angus cattle sharply diversified after acute stress. By performing miRNA microarray analysis, 13 miRNAs were significantly differentially expressed in stressed group compared to control group. Using a bioinformatics method, 135 protein-coding genes were predicted as the targets of significant differentially expressed miRNAs. Gene Ontology (GO) term and Ingenuity Pathway Analysis (IPA) mined that these target genes involved in some important pathways, which may have impact on meat quality and beef tenderness. | Chunping Zhao Fei Tian Ying Yu George Liu Linsen Zan M Scott Updike Jiuzhou Song | 2012 | Journal of Animal Science and Biotechnology2012，3，2： | 2 |
| 7 | Application of Cellulose and Cellulose Nanofibers in Oil Exploration显示文摘In this article, the application of cellulose and cellulose nanofibers in oil exploration was discussed, and the research status of using cellulose and cellulose nanofibers as oil displacement agents, oil-well cementing additives, and foam stabilizers were summarized. | Xiongli Liu Chunping Wang An Wang Jialei Qu Yangbing Wen Bing Wei | 2019 | Paper And Biomaterials2019，4，3： | 2 |
| 8 | Online belief propagation algorithm for probabilistic latent semantic analysis显示文摘 | Yun YE Shengrong GONG Chunping LIU Jia ZENG Ning JIA YiZHANG | 2013 | Frontiers of Computer Science2013，7，4： | 2 |
| 9 | Enhanced nitrogen removal and microbial analysis in partially saturated constructed wetland for treating anaerobically digested swine waste water显示文摘Nitrogen removal of wastewater containing high-strength ammonium by the constructed wetlands (CWs) has been paid much attention. In this study, the ability of a partially saturated CW to treat anaerobically-digested decentralized swine wastewater under varying operating parameters from summer to winter was investigated. The partially saturated CW achieved better NH4^+-N and TN removal by tidal flow than intermittent flow. With surface loading rates of 0.108, 0.027, and 0.029 kg/(m^2·d) for COD, NH4^+-N, and TN, the partially saturated CW by tidal operation achieved corresponding removal efficiencies of 85.94%, 61.20%, and 57.41%, respectively, even at 10℃. When the rapid-adsorption of NH4^+-N and the bioregeneration of zeolites reached dynamically stable, the simultaneous nitrification and denitrification in the aerobic zeolite layer was observed and accounted for 58.82% of the total denitrification of CW. The results of Illumina high-throughput sequencing also indicated that nitnfiers (Nitrospira and Rhizomicrobiurri) and denitrifiers (Rhodanobacter and Thauera) simultaneously existed in the zeolite layer. The dominant existence of versatile organic degraders and nitrifiers/denitrifiers in the zeolite layer was related to the removal of most COD and nitrogen in this zone. The contribution of the possible nitrogen removal pathways in the CW was as follows: nitrification-denitrification (86.55%)>substrate adsorption (11.70%)>plant uptake (1.15%)>microbial assimilation (0.60%). | Zhenfeng Han Ying Miao Jing Dong Zhiqiang Shen Yuexi Zhou Shan Liu Chunping Yang | 2019 | Frontiers of Environmental Science & Engineering2019，13，4： | 2 |
| 10 | miR-218 inhibits the invasive ability of glioma cells by direct downregulation of IKK-β显示文摘 | Libing Song Quan Huang Kun Chen Liping Liu Chuyong Lin Ting Dai Chunping Yu Zhiqiang Wu Jun Li | 2010 | Biochemical and Biophysical Research Communications2010，，1： | 2 |
| 11 | Enamin one ligand-assisted homo and cross-coupling of termina alkynes under mild conditions 显示文摘 | Liu Yunyun Wang Chunping Wang Xiaobo | 2013 | Tetrahedron Letters2013，54，39： | 1 |
| 12 | Microstructures and properties of silver-based contact material fabricated by hot extrusion of internal oxidized Ag–Sn–Sb alloy powders显示文摘 | Canhui Xu Danqing Yi Chunping Wu Huiqun Liu Weizhou Li | 2012 | Materials Science & Engineering A2012，，： | 1 |
| 13 | The effect of laser scanning path on microstructures and mechanical properties of laser solid formed nickel-base superalloy Inconel 718显示文摘 | Fencheng Liu Xin Lin Chunping Huang Menghua Song Gaolin Yang Jing Chen Weidong Huang | 2010 | Journal of Alloys and Compounds2010，，： | 1 |
| 14 | Few-shot Named Entity Recognition with Joint Token and Sentence Awareness显示文摘Few-shot learning has been proposed and rapidly emerging as a viable means for completing various tasks.Recently,few-shot models have been used for Named Entity Recognition(NER).Prototypical network shows high efficiency on few-shot NER.However,existing prototypical methods only consider the similarity of tokens in query sets and support sets and ignore the semantic similarity among the sentences which contain these entities.We present a novel model,Few-shot Named Entity Recognition with Joint Token and Sentence Awareness(JTSA),to address the issue.The sentence awareness is introduced to probe the semantic similarity among the sentences.The Token awareness is used to explore the similarity of the tokens.To further improve the robustness and results of the model,we adopt the joint learning scheme on the few-shot NER.Experimental results demonstrate that our model outperforms state-of-the-art models on two standard Fewshot NER datasets. | Wen Wen Yongbin Liu Qiang Lin Chunping Ouyang | 2023 | Data Intelligence2023，5，3： | 1 |
| 15 | Characterization and application of bioflocculant prepared by Rhodococcus erythropolis using sludge and livestock wastewater as cheap culture media显示文摘 | Lanyan Peng Chunping Yang Guangming Zeng Lu Wang Chuanhua Dai Zhiyong Long Hongyu Liu Yuanyuan Zhong | 2014 | Applied Microbiology and Biotechnology2014，，15： | 1 |
| 16 | Design and realization of materials service safety assessment system based on ontology显示文摘 | Ouyang Chunping Hu Changjun Liu Zhenyu | 2011 | Advance Material Research2011，186，： | 1 |
| 17 | Effect of overlap rate on recrystallization behaviors of Laser Solid Formed Inconel 718 superalloy显示文摘 | Jun Cao Fencheng Liu Xin Lin Chunping Huang Jing Chen Weidong Huang | 2013 | Optics and Laser Technology2013，，： | 1 |
| 18 | Microstructures and properties of silver-based contact material fabricated by hot extrusion of internal oxidized Ag–Sn–Sb alloy powders显示文摘 | Canhui Xu Danqing Yi Chunping Wu Huiqun Liu Weizhou Li | 2012 | Materials Science & Engineering A2012，，： | 1 |
| 19 | Puerarin blocks the signaling transmission mediated by P2X 3 in SG and DRG to relieve myocardial ischemic damage显示文摘 | Shuangmei Liu Chunping Zhang Qingming Shi Guilin Li Miaomiao Song Yun Gao Changshui Xu Hong Xu Bo Fan Shicheng Yu Chaoran Zheng Qicheng Zhu Bing Wu Lichao Peng Huangui Xiong Qin Wu Shangdong Liang | 2014 | Brain Research Bulletin2014，，： | 1 |
| 20 | Microwave assisted synthesis of novel 6,7,8-trimethoxy N-sub- stituted-4-aminoquinazoline compounds 显示文摘 | Liu Gang Sun Lin Liu Chunping | 2008 | Journal of Heterocyclic Chemistry2008，45，3： | 1 |
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