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| 1 | Fluorescent nanoparticles for chemical and biological sensing显示文摘Fluorescent nanoparticles (NPs), including quantum dots (QDs), dye-doped NPs, and rare earth-based NPs, etc., have been a major focus of research and development during the past decade. The impetus behind such endeavors can be attributed to their unique chemical and optical properties, such as bright fluorescence, high photostability, large Stocks shift and flexible processability. The introduction of fluorescent NPs into analytical chemistry has opened up new venues for fluorescent analysis. In this review, we focus on the developments and analytical applications of fluorescent NPs in the chemical and biological sensing of pH, ions, organic compounds, small biological molecules, nucleic acids, proteins, virus and bacteria. The review also points out the in vitro and in vivo imaging application of fluorescent NPs at the cell and body levels. Meanwhile, the ad- vantages of NPs brought field of sensing and signal transductions are also discussed. | LIU JianBo, YANG XiaoHai, HE XiaoXiao, WANG KeMin, WANG Qing, GUO QiuPing, SHI Hui, HUANG Jin & HUO XiQin State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering, Institute of Biology, Hunan University Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Changsha 410082, China | 2011 | Science China Chemistry2011，54，8： | 9 |
| 2 | Improved FOCUSS method for reconstruction of cluster structured sparse signals in radar imaging显示文摘The high resolution imaging of distributed targets in millimeter-wave radar system is studied in this paper.We use Gaussian Mrakov random field(GMRF)to represent the clustering property of the targets.Our novel method,called Clustering FOCUSS,incorporate an additional cluster constraint into the process of the focal underdetermined system solver(FOCUSS)algorithm.Simulation results indicate that the novel algorithm has a higher imaging accuracy than the methods of Capon beamforming,the l1 norm algorithm and the FOCUSS algorithm. | HU Chen Xi LIU YiMin LI Gang WANG XiQin | 2012 | Science China(Information Sciences)2012，55，8： | 8 |
| 3 | Soil erosion and sediment interception by check dams in a watershed for an extreme rainstorm on the Loess Plateau,China显示文摘The magnitude of soil erosion and sediment load reduction efficiency of check dams under extreme rainstorms is a long-standing concern.The current paper aims to use check dams to deduce the amount of soil erosion under extreme rainstorms in a watershed and to identify the difference in sediment interception efficiency of different types of check dams.Based on the sediment deposition at 12 check dams with 100% sediment interception efficiency and sub-catchment clustering by taking 12 damcontrolled catchments as clustering criteria,the amount of soil erosion resulting from an extreme rainstorm event on July 26,2017(named '7·26' extreme rainstorm) was estimated in the Chabagou watershed in the hill and gully region of the Loess Plateau.The differences in the sediment interception efficiency among the check dams in the watershed were analyzed according to field observations at 17 check dams.The results show that the average erosion intensity under the '7-26' extreme rainstorm was approximately 2.03×10~4 t/km^2,which was 5 times that in the second largest erosive rainfall in 2017(4.15×10~3 t/km^2) and 11-384 times that for storms in 2018(0.53×10~2 t/km^2-1.81×10~3 t/km^2).Under the '7-26' extreme rainstorm,the amount of soil erosion in the Chabagou watershed above the Caoping hydrological station was 4.20 × 106 t.The sediment interception efficiency of the check dams with drainage canals(including the destroyed check dams) and with drainage culverts was 6.48 and 39.49%,respectively.The total actual sediment amount trapped by the check dams was 1.11 × 106 t,accounting for 26.36% of the total amount of soil erosion.In contrast,3.09×106 t of sediment were input to the downstream channel,and the sediment deposition in the channel was 2.23×10~6 t,accounting for 53.15%of the total amount of soil erosion.The amount of sediment transport at the hydrological station was8.60×10~5 t.The Sediment Delivery Ratio(SDR) under the '7·26' extreme rainstorm was 0.21.The results indicated that the amount of soil erosion was huge,and the sediment interception efficiency of the check dams was greatly reduced under extreme rainstorms.It is necessary to strengthen the management and construction technology standards of check dams to improve the sediment interception efficiency and flood safety in the watershed. | Leichao Bai Nan Wang Juying Jiao Yixian Chen Bingzhe Tang Haolin Wang Yulan Chen Xiqin Yan Zhijie Wang | 2020 | International Journal of Sediment Research2020，35，4： | 7 |
| 4 | The combined influence of surface modification, size distribution, and interaction time on the cytotoxicity of CdTe quantum dots in PANC-1 cells显示文摘Mercaptopropionic 酸(MPA ) 和盖住的 CdTe 量点的 cysteamine (Cys )(QD ) 成功地被准备并且过去常在人的胰腺的癌(PANC-1 ) 在他们的 cytotoxicity 上调查表面修正,尺寸分发,和相互作用时间的联合影响房间。显示的结果那越小 MPA-CdTe QD 的尺寸,越 higher cytotoxicity,它能是部分由于他们在房间内的分发的差别。与 MPA-CdTe QD 作比较, Cys-CdTe QD 最好细胞的 metabolizability 和更低的 cytotoxicity。这些 QD 细胞的分发和 cytotoxicity 是仔细与他们有房间的相互作用时间有关。他们的 cytotoxicity 被发现显著地随媒介的孵化时间的增加被提高。在 QD 处理以后,影响在生存能力也是的最后的房间上恢复时间集中和 QD 的表面修正上的依赖者在预告的处理使用了。这里讨论的这些因素的联合影响可能为在未来理解并且减少 QD 的 cytotoxicity 提供有用信息生物医学的应用。 | Shuquan Chang Bin Kang Xiqin Liu Yaodong Dai Da Chen | 2012 | Acta Biochimica et Biophysica Sinica2012，44，3： | 6 |
| 5 | Performance bounds of extended target tracking in cluttered environments显示文摘In this paper, we consider the problem of the performance bound of a nonlinear filtering problem corresponding to tracking an extended target in cluttered environments (i.e., with false alarms and missed detections). The high resolution sensor obtains the measurements of the position and the extent of the extended target whose shape is modeled by an ellipse. The posterior Cramer-Rao lower bound (PCRLB) provides a useful tool to evaluate the best achievable performance of the nonlinear filtering problem. The bounds of the traditional kinematic state estimation are calculated using the point and the extended target model. It is shown in this paper that the bound of extended target tracking is smaller than that of point model because more information is utilized. The bounds are calculated to examine the influence of the measuring accuracy, the geometry between the sensor and the target, the prior knowledge of the target, and the environmental circumstance. In a cluttered environment, the PCRLB is calculated by IRF (information reduction factor), MSC (measurement sequence conditioning), and MESC (measurement existence sequence conditioning) approaches. The simulation results also illustrate the relationship of the three methods. | MENG HuaDong ZHONG ZhiWen WANG XiQin | 2013 | Science China(Information Sciences)2013，56，7： | 5 |
| 6 | Comparison of parametric sparse recovery methods for ISAR image formation显示文摘A parametric sparse representation model of the inverse synthetic aperture radar(ISAR)signal has been proposed recently,and the ISAR signal is decomposed as a summation of many basis-signals determined by the target rotation rate.Based on the parametric sparse representation model,several sparsity-driven algorithms are proposed to retrieve both the target rotation rate and the ISAR image.In this paper,four parametric sparse recovery algorithms are compared mainly in three aspects:the accuracy of the rotation rate estimation,the ISAR image quality and the computational load.Numerical examples are presented to show the advantages and disadvantages for each method. | RAO Wei LI Gang WANG XiQin XIA XiangGen | 2014 | Science China(Information Sciences)2014，57，2： | 4 |
| 7 | The relationship between matrix metalloproteinases-9 and CD15s antigen in angiogenesis of gastric carcinoma显示文摘调查在矩阵 metalloproteinases-9 (MMP-9 ) 和 sialyl 之间的关系的目的在胃的癌的侵略和转移的路易斯十世(CD15s ) 抗原。在胃的癌的 47 种情况中的 CD105, MMP-9 和 CD15s 的方法表示经历的激进的外科被 SP 免疫评估用各自的单音的同种细胞的抗体的组织化学的染色。与 CD105 标记的微容器密度(MVD ) 被检测。在 MVD 和 MMP-9 之间的关联, CD15s 统计上也被分析。结果在 MMP-9 和 CD15s 的 MVD 积极表示组独自在 MMP-9 或 CD15s 积极表示比那显著地更高级组,和它在 MMP-9 和 CD15s 否定表示组也是比那显著地高级的。结论 MMP-9 是侵略的一个标记, CD15s 是在胃的癌的转移的一个标记。MMP-9 和 CD15s 的联合察觉为诊断有某些临床的意义,处理并且为胃的 caner 估计预后。 | Peizhong Shang Xiaowu Li Xiqin Zhu Jianjun Miao Guohong Jia Huaping Gu | 2009 | The Chinese-German Journal of Clinical Oncology2009，8，3： | 3 |
| 8 | Weak key analysis for chaotic cipher based on randomness properties显示文摘Weak key analysis is a key issue in the design of chaotic ciphers.While most of the existing research focusing on the degradation of the chaotic sequences which causes weak keys,we point out that the parameters for which the chaotic sequences do not degrade are still possible to be weak keys.In this paper,we propose a new approach based on the rigorous statistical test to improve the weak key analysis.The weak keys of a specific chaotic cipher are investigated by using our method and a large number of new weak keys are detected.These results verify that our method is more effective.On the other hand,although statistical tests are now widely adopted to test the chaos-based bit sequences,there are few reports of analysis results on the weak keys or weak sequences of chaotic cipher.Thus our work may be helpful for current research on statistical tests of chaotic cipher. | YIN RuMing WANG Jian YUAN Jian SHAN XiuMing WANG XiQin | 2012 | Science China(Information Sciences)2012，55，5： | 3 |
| 9 | Water quantity-quality combined evaluation method for rivers' water requirements of the instream environment in dualistic water cycle: A case study of Liaohe River Basin显示文摘In this article the meaning of the quantity and quality of environmental flows of river in dualistic water cycle is discussed,and compared with the meaning of unitary water cycle. Based on the analysis of the relationship between environmental flows of river re-quirements,the efficiency of water resource usage,the consumption coefficient,and the concentration of waste water elimination,the water quantity and water quality calculation method of the environmental flows of river requirements in dualistic water cycle is developed,and the criteria for environmental flows of river requirements are established,and therefore the water quantity-quality combined evaluation of natural river flows requirements are realized. Taking the Liaohe River as a model,the environmental flows of river requirements for Xiliao River,Dongliao River,mainstream Liaohe River,Huntai River and northeast rivers along the coasts of the Yellow and Bohai seas in unitary water cycle are calculated,each taking up 39.3%,63.0%,43.9%,43.3% and 43.5% of runoff respectively. Evaluated according to Tennant recommended flow,the results show that: except Xiliao River is 'median',the rest are all upon 'good',the Dongliao River is even 'very good'. The corresponding results in dualistic water cycle are that,the proportion of natural flows for each river is 57.5%,74.1%,60.8%,60.3% and 60.4%; while the combined evaluation results show that: considering 'quantity',except Xiliao River,the rest rivers can all achieve the 'quantity' criteria of the en-vironmental flows of river requirements,but if considering the aspect of 'quality',only Dongliao River can reach the 'quality' standard. By water quantity-quality combined evalua-tion method,only Dongliao River can achieve the criteria. So the water quality is the main factor that determines whether the environmental flows can meet the river ecosystem de-mands. | WANG Xiqin ZHANG Yuan LIU Changming | 2007 | Journal of Geographical Sciences2007，17，3： | 2 |
| 10 | Protein analysis based on molecular beacon probes and biofunctionalized nanoparticles显示文摘With the completion of the human genome-sequencing project, there has been a resulting change in the focus of studies from genomics to proteomics. By utilizing the inherent advantages of molecular beacon probes and biofunctionalized nanoparticles, a series of novel principles, methods and techniques have been exploited for bioanalytical and biomedical studies. This review mainly discusses the applications of molecular beacon probes and biofunctionalized nanoparticles-based technologies for realtime, in-situ, highly sensitive and highly selective protein analysis, including the nonspecific or specific protein detection and separation, protein/DNA interaction studies, cell surface protein recognition, and antigen-antibody binding process-based bacteria assays. The introduction of molecular beacon probes and biofunctionalized nanoparticles into the protein analysis area would necessarily advance the proteomics research. | SHI Hui, HE XiaoXiao, YANG XiaoHai, WANG KeMin, WANG Qing, GUO QiuPing & HUO XiQin State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering, Biomedical Engineering Center, Hunan University Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Changsha 410082, China | 2010 | Science China Chemistry2010，53，4： | 2 |
| 11 | Study on the Optimal Composition of Chitosan/Nano-TiO_2 Composite Film and Its Application in the Preservation of Jinqiu Pear显示文摘Water permeability can be used as a parameter to evaluate the effects of chitosan / nano-TiO_2 composite film on the preservation of fruits and vegetables.In this study,using water permeability as the objective function,an L9( 3)3orthogonal experiment was conducted with addition amounts of chitosan,nano-TiO_2 and glycerin as three factors at three levels. According to the experimental results,when the percentages of chitosan,nano-TiO_2 and glycerin in chitosan / nano-TiO_2 composite film was 2%,0. 03% and 2. 5%,respectively( i. e.,there were 2. 0 g of chitosan,0. 03g of nano-TiO_2 and 2. 5g of glycerin per 100 g composite film solution),the water permeability of chitosan / nano-TiO_2 composite film reached the minimum. Chitosan / nano-TiO_2 composite film prepared with the optimal composition was used for preservation of Jinqiu pear. The water loss rate,respiratory intensity and good fruit rate of preserved Jinqiu pear were determined,which indicated that the prepared chitosan / nano-TiO_2 composite film exhibited good preservative effects. | Xiqin TAO Mingli WANG | 2015 | Agricultural Biotechnology2015，4，3： | 2 |
| 12 | Balancing selection and wild gene pool contribute to resistance in global rice germplasm against planthopper显示文摘Interactions and co-evolution between plants and herbivorous insects are critically important in agriculture.Brown planthopper(BPH)is the most severe insect of rice,and the biotypes adapt to feed on different rice genotypes.Here,we present genomics analyses on 1,520 global rice germplasms for resistance to three BPH biotypes.Genome-wide association studies identified 3,502 single nucleotide polymorphisms(SNPs)and 59 loci associated with BPH resistance in rice.We cloned a previously unidentified gene Bph37 that confers resistance to BPH.The associated loci showed high nucleotide diversity.Genome-wide scans for trans-species polymorphisms revealed ancient balancing selection at the loci.The secondarily evolved insect biotypes II and III exhibited significantly higher virulence and overcame more rice varieties than the primary biotype I.In response,more SNPs and loci evolved in rice for resistance to biotypes II and III.Notably,three exceptional large regions with high SNP density and resistance-associated loci on chromosomes 4 and 6 appear distinct between the resistant and susceptible rice varieties.Surprisingly,these regions in resistant rice might have been retained from wild species Oryza nivara.Our findings expand the understanding of long-term interactions between rice and BPH and provide resistance genes and germplasm resources for breeding durable BPH-resistant rice varieties. | Cong Zhou Qian Zhang Yu Chen Jin Huang Qin Guo Yi Li Wensheng Wang Yongfu Qiu Wei Guan Jing Zhang Jianping Guo Shaojie Shi Di Wu Xiaohong Zheng Lingyun Nie Jiaoyan Tan Chaomei Huang Yinhua Ma Fang Yang Xiqin Fu Bo Du Lili Zhu Rongzhi Chen Zhikang Li Longping Yuan Guangcun He | 2021 | Journal of Integrative Plant Biology2021，63，10： | 2 |
| 13 | 显示文摘 | Liu Xiqin Liu Zili | 2006 | Nonferrous Met Soe China2006，16，23： | 1 |
| 14 | Measurement of network harmonic impedances practical implementation issues and their solutions显示文摘 | Wilsun Xu Emand E.Ahmed Xiqin Zhang Xian Liu | | 0，，17： | 1 |
| 15 | New results on H∞filter design for nonlinear systems with time delay via T-S fuzzy models显示文摘 | Huang Shengjuan He Xiqin Zhang Ningning | 2011 | IEEE Trans Fuzzy Syst2011，19，1： | 1 |
| 16 | Combination of weighted ? 2,1 minimization with unitary transformation for DOA estimation显示文摘 | Chundi Zheng Gang Li Xiqin Wang | 2013 | Signal Processing2013，，： | 1 |
| 17 | Subspace weighted ?2,1 minimization for sparse signal recovery显示文摘 | Chundi Zheng Gang Li Yimin Liu Xiqin Wang | 2012 | EURASIP Journal on Advances in Signal Processing2012，，1： | 1 |
| 18 | IgG, IgM and IgA antibodies against the novel polyprotein in active tu- berculosis显示文摘 | Feng Xiaoyan Yang Xiqin Xiu Bingshui | 2014 | BMC Infect Dis2014，14，： | 1 |
| 19 | Sub - array RLS Adaptive Algorithm显示文摘 | Tang Jun Wang Xiqin Peng Yingning | 1999 | IEEE Electronics Letters1999，35，13： | 1 |
| 20 | Airborne adaptive MTI scheme with preventing the whitening of the target 显示文摘 | HUANG Yong PENG Yingning WANG Xiqin | 1999 | IEEE Aerospace and Electronic Systems Magazine1999，14，7： | 1 |
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