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| 1 | Water Quality Evaluation in Tidal River Reaches of Liaohe River Estuary, China Using a Revised QUAL2K Model显示文摘Rivers in the Liaohe River Estuary area have been seriously polluted by discharges of wastewater containing petroleum pol- lutants and nutrients. In this paper, The Enhanced Stream Water Quality Model (QUAL2K) and its revised model as well as One-dimensional Tide Mean Model (1D model) were applied to predict and assess the water quality of the tidal river reach of the Liaohe River Estuary. Dissolved oxygen (DO), biochemical oxygen demand (BOD5), ammonia nitrogen (NH3-N) and total phosphorus (TP) were chosen as water quality indices in the two model simulations. The modelled results show that the major reasons for degraded rivers remain petroleum and non-point source pollution. Tidal water also has a critical effect on the variation of water quality. The sensitivity analysis identifies that flow rate, point load and diffuse load are the most sensitive parameters for the four water quality indices in the revised QUAL2K simulation. Uncertainty analysis based on a Monte Carlo simulation gives the probability distribution of the four water quality indices at two locations (6.50 km and 44.84 km from the river mouth). The statistical outcomes indicate that the observed data fall within the 90% confidence intervals at all sites measured, and show that the revised QUAL2K gives better results in simulating the water quality of a tidal river. | YE Hanfeng GUO Shuhai LI Fengmei LI Gang | 2013 | Chinese Geographical Science2013，23，3： | 7 |
| 2 | Combinatorial Independence and Sofic Entropy显示文摘We undertake a local analysis of combinatorial independence as it connects to topological entropy within the framework of actions of sofic groups. | David Kerr Hanfeng Li | 2013 | Communications in Mathematics and Statistics2013，1，2： | 2 |
| 3 | Concentrations and Sources of Polycyclic Aromatic Hydrocarbons in Topsoil of Benxi City, Northeast China显示文摘Polycyclic aromatic hydrocarbons (PAHs) contamination of topsoil in Benxi City, Northeast China was investigated in this study, and sampling sites were located in industrial area and residential area. Results demonstrate that there is high variability in the total PAHs concentrations, ranging from 783.00 ng/g to 729 076.29 ng/g dry weight in the topsoil of Benxi City and the pollution in industrial area is the most serious. The results also present that higher molecular weight PAHs (4–6 rings) contribute substantially (79.03%) to the overall content of PAHs. The PAHs sources were determined with factor analysis by nonnegative constraints, and the results show that PAHs originating from traffic tunnel, power plant, coke oven and residential emission sources, account for 27.10%, 40.81%, 20.11% and 11.98%, respectively, of the total. The PAHs pollution is the most serious around Benxi Iron and Steel Group Corporation, and the PAHs mainly originate from coke oven and traffic tunnel, with the average contribution rate of 57.40% and 42.60%, respectively. The source apportionment results are basically consistent with the industry distribution, and the geographical and climatic characteristics of the study area. | LI Fengmei GUO Shuhai WU Bo YE Hanfeng | 2011 | Chinese Geographical Science2011，21，2： | 2 |
| 4 | Magnetic resonance imaging for prostate cancer clinical application显示文摘As prostate cancer is a biologically heterogeneous disease for which a variety of treatment options are available, the major objective of prostate cancer imaging is to achieve more precise disease characterization. In clinical practice, magnetic resonance imaging (MRI) is one of the imaging tools for the evaluation of prostate cancer, the fusion of MRI or dynamic contrast-enhanced MRI (DCE-MRI) with magnetic resonance spectroscopic imaging (MRSI) is improving the evaluation of cancer location, size, and extent, while providing an indication of tumor aggressiveness. This review summarizes the role of MRI in the application of prostate cancer and describes molecular MRI techniques (including MRSI and DCE-MRI) for aiding prostate cancer management. | Bing Li Yong Du Hanfeng Yang Yayong Huang Jun Meng Dongmei Xiao | 2013 | Chinese Journal of Cancer Research2013，25，2： | 2 |
| 5 | Quantized control for the class of feedforward nonlinear systems显示文摘Dear editor, In certain practical systems, quantized control can effectively solve stabilization problems in intelligent transportation systems and digital systems [1]. Constant progress has been made on linear quantization systems. The problems of input quantization and output quantization were studied in [2] for the class of linear systems using a logarithmic quantizer, and the problem of quadratic stabilization was addressed by a proposed condition. On the contrary, research on nonlinear quantization systems is very significant and certain researches for nonlinear quantization systems are available [3,4]. | Hanfeng LI Qingrong LIU Xianfu ZHANG Xiandong CHEN | 2019 | Science China(Information Sciences)2019，62，8： | 2 |
| 6 | A functional polymorphism in Pre‐miR‐146a gene is associated with prostate cancer risk and mature miR‐146a expression in vivo显示文摘 | BinXu Ning‐HanFeng Peng‐ChaoLi JunTao DeyaoWu Zheng‐DongZhang NaTong Jin‐FengWang Ning‐HongSong WeiZhang Li‐XinHua Hong‐FeiWu | 2010 | Prostate2010，，5： | 1 |
| 7 | Hydrothermal-treated Pt/Al_(2)O_(3) as an excellent catalyst for toluene total oxidation显示文摘The preparation of highly active supported noble metal catalysts with a low noble metal loading has always been the ultimate goal of researchers working on catalysis.Hydrothermally treated Pt/Al_(2)O_(3)(Pt/Al_(2)O_(3)-H)exhibits better catalytic activity than that(Pt/Al_(2)O_(3)-C)treated via the conventional calcination approach.At the high space velocity of100,000 m L/(g·hr),the temperature that correspond to 50%toluene conversion(T50)of Pt/Al_(2)O_(3)-H is 115℃ lower than that of Pt/Al_(2)O_(3)-C,and the turnover frequency(TOF)value can reach 0.0756 sec-1.The mechanism by which the hydrothermal approach enhances Pt/Al_(2)O_(3) activity has been investigated.The structure associated with the high catalytic activity of Pt nanoparticles(NPs)can be retained via hydrothermal treatment.Furthermore,the support is transformed to AlO(OH)with numerous surface hydroxyl groups,which in turn can facilitate the adsorption of toluene.And the synergistic effects of Pt NPs and AlO(OH)increases the contents of Pt in oxidation state and active oxygen,which are beneficial for toluene oxidation. | Xiao Chen Yong Wang Jianyu Li Zhongheng Hu Ying Zhou Huayan Liu Hanfeng Lu | 2022 | Journal of Environmental Sciences2022，34，6： | 1 |
| 8 | Single-atom electrocatalysis: a new approach to in vivo electrochemical biosensing显示文摘Modulation of interfacial electron transfer has been proven to pave a new approach to in vivo electrochemical monitoring of brain chemistry;however,designing and establishing highly efficient electrocatalytic scheme towards neurochemicals remain a longstanding challenge.Here,we find that recently established single-atom catalyst(SAC)can be used for catalyzing the electrochemical process of physiologically relevant chemicals and thus offers a new avenue to in vivo electrochemical biosensing.To prove this new concept,we used Co single-atom catalyst(Co-SAC),in which the atomic active sites are dispersed in ordered porous N-doping carbon matrix at atomic level,as an example of SACs for analyzing glucose as the physiologically relevant model chemicals.We found that Co-SAC catalyzes the electrochemical oxidation of hydrogen peroxide(H2O2)at a low potential of ca.+0.05 V(vs.Ag/AgCl).This property was further used for developing an oxidase-based glucose biosensor that was used subsequently as a selective detector of an online electrochemical system(OECS)for continuous monitoring of microdialysate glucose in rat brain.The OECS with Co-SAC-based glucose biosensor as the online detector was well responsive to glucose without interference from other electroactive species in brain microdialysate.This study essentially offers a new approach to in vivo electrochemical analysis with SACs as electrocatalysts to modulate interfacial electron transfer. | Hanfeng Hou Junjie Mao Yunhu Han Fei Wu Meining Zhang Dingsheng Wang Lanqun Mao Yadong Li | 2019 | Science China Chemistry2019，62，12： | 1 |
| 9 | Order-unit quantum Gromov-Hausdorff distance显示文摘 | LI Hanfeng | 2006 | J Funct Anal2006，231，： | 1 |
| 10 | The Adaptive Planting and the Prospect of Industrial Development of Quinoa in China显示文摘Quinoa is the only single plant meeting the basic nutritional needs of the human body. It is the whole nutritious food with nutritional balance, wide adaptability, strong resistance and other characteristics. In this paper, the botanical characteristics and nutritional value of quinoa were systematically introduced, and the development of quinoa in China was reviewed. The problems of domestic quinoa industry, the shortage of germplasm resources, the lack of innovation and high-yielding cultivation techniques were analyzed. To provide theoretical references for quinoa planting and industrial development in China, the countermeasures to improve the investment of quinoa industry and promote the development of multi-form industry were put forward. | Gong Yongchao Ding Hanfeng Pu Yanyan Song Dongtao Liu Baomin Guo Xiuxiu Li Nana | 2018 | Animal Husbandry and Feed Science2018，10，1： | 1 |
| 11 | RNA-Seq analysis and development of SSR and KASP markers in lentil(Lens culinaris Medikus subsp. culinaris)显示文摘Lentil(Lens culinaris Medikus subsp.culinaris,2 n=14)is a cool-season legume with high production potential for multiple uses.However,limited molecular research has been conducted in this species owing to its large genome,which impedes the generation of genome sequences and the development of molecular markers.In this study,more than 1.37 billion filtered clean reads were collected by RNA-Seq of six diverse lentil accessions and217,836 transcripts and 161,095 unigenes were de novo assembled,yielding respectively 257.1 and 240.6 million nucleotides.The mean transcript length was 1180 bp and the N50 and N90 lengths were respectively 2075 and 479 bp.The mean length of the unigenes was 1494 bp and their N50 and N90 values were respectively 2203 and 714 bp.The unigenes were annotated against seven databases.The FLOWERING LOCUS T(FT)gene homolog in lentil showed high protein sequence similarity to the FT gene homologs of pea and alfalfa.On the basis of the RNA-Seq analysis,26,449 EST-SSR markers were designed in silico,and 276 preliminarily screened markers were selected to evaluate polymorphism in 94 diverse lentil accessions.In total,125(45.29%)of 276 EST-SSR markers were found to be polymorphic.A total of 130,073 SNP loci were detected and 78(61.41%)of 127 SNPs were successfully converted to KASP markers.Population genetic analyses of the lentil accessions with EST-SSR and KASP markers revealed similar genetic structures,suggesting that the RNA-Seq-generated resources and the developed markers are reliable for use in molecular marker-assisted breeding of lentil. | Dong Wang Tao Yang Rong Liu Nana Li Xiaomu Wang Ashutosh Sarker Xiaodong Zhang Runfang Li Yanyan Pu Guan Li Yuning Huang Yishan Ji Zhaojun Li Qian Tian Xuxiao Zong Hanfeng Ding | 2020 | The Crop Journal2020，8，6： | 1 |
| 12 | Research Progress on Genetic Diversity of Cultivated Soybean Germplasm Resources in China显示文摘In this paper,by analyzing the genetic diversity of cultivated soybean germplasm resources in China,the environmental and genotypic factors that affect the genetic diversity of cultivated soybean germplasm resources were explored to further expand the genetic basis of the existing germplasm resources of cultivated soybean in China. Moreover,research progress on genetic diversity of cultivated soybean in China was summarized,which not only revealed the geographical characteristics of genetic diversity of cultivated soybean in China,but also proposed direction for research of genetic diversity of soybean. | Yongchao GONG Dongtao SONG Nana LI Yanyan PU Tingjing YAN Hanfeng DING | 2018 | Agricultural Biotechnology2018，7，2： | 1 |
| 13 | An experimental study on turbulence modification in the near-wall boundary layer of a dilute gas-particle channel flow显示文摘 | Jing Li Hanfeng Wang Zhaohui Liu Sheng Chen Chuguang Zheng | 2012 | Experiments in Fluids2012，，5： | 1 |
| 14 | Independence in topological and C*-dynamics显示文摘 | David Kerr Hanfeng Li | 2007 | Mathematische Annalen2007，，4： | 1 |
| 15 | Effects of Seed Viability and Number of Generations on Genetic Integrity of Soybean Germplasm Zhonghuang 18 by AFLP Markers显示文摘The seeds of a soybean cultivar Zhonghuang 18 were subjected to accelerated aging for 0(population G_0-1), 112(population G_0-2), 154(population G_0-3) and 196 d(population G_0-4), whose germination percentage was found to be 98.0%, 95.0%, 81.0%, and 79.0%, respectively. Then, the four populations were regenerated twice in the field. The first descendant populations were marked as G_1-1, G_1-2, G_1-3 and G_1-4, and the second were marked as G_2-1, G_2-2, G_2-3 and G_2-4, respectively. The genetic variation between the control population(G_0-1) and the experimental populations was analyzed using 12 AFLP primer combinations. The results showed that there was no significant difference in genetic similarity between the 11 experimental populations and the control population G_0-1. The genetic similarity between population G_2-4 and G_0-1 was still as high as 0.933 3, indicating that the F_2 generation of the population whose germination percentage was only 79.0% still had a high genetic similarity to the control population. The results of t-tests revealed that the populations G_1-1, G_2-1, G_1-2 and G_2-2 showed no significant difference from the control population G_0-1 in effective number of alleles per locus(Ae), genetic diversity index(H) and Shannon's diversity index(I), while these indices of populations G_0-3, G_0-4, G_1-3, G_1-4, G_2-3 and G_2-4 were significantly reduced. χ~2 tests indicated that the populations G_1-1 and G_2-1 showed little difference, and the populations G_0-2, G_0-3, G_0-4, G_1-2, G_1-3, G_1-4, G_2-2, G_2-3, and G_2-4 showed great difference in allele frequency distribution from the control population G_0-1, and the difference was greater when the seed viability was lower. Compared with the control population G_0-1, the number of rare alleles(Nr) of the populations G_0-2, G_1-1, G_2-1, G_1-2 and G_2-2 showed no significant difference, while that of the populations G_0-3, G_0-4, G_1-3, G_1-4, G_2-3 and G_2-4 declined obviously. These results revealed that compared with the control population, the genetic diversity and Nr for the descendant populations of the populations with 98.0% and 95.0% germination percentages did not change significantly, but declined greatly for the descendant populations of the populations with 81.0.% and 79.0% percentages. The results suggested that the decline in seed viability has a greater impact than the number of generations on genetic structure of soybean germplasm. So, it is suggested that soybean seed with an initial germination percentage of 98.0% should be regenerated before its germination percentage declines to 81.0%. | Dong WANG Xiaodong ZHANG Runfang LI Lingyun LU Xiaomu WANG Xiaohong GU Xia XIN Guangkun YIN Xinxiong LU Hanfeng DING | 2019 | Agricultural Biotechnology2019，8，2： | 0 |
| 16 | Establishment and Operation of Crop Genebank in Shandong Province显示文摘Shandong Province has abundant and diverse crop germplasm resources, but it is in lack of unified and effective preservation and management, leading to the decline and even extinction of many rare germplasm resources. In this study, the necessity for the establishment of crop genebank in Shandong Province was briefly described. In addition, the type, functions and technical indicators, as well as the operation of the crop genebank were introduced comprehensively to provide a reference for the establishment of genebank by other units or organizations. | Dong WANG Runfang LI Shihua LIU Cun'e WANG Lingyun LU Nana LI Hanfeng DING Xiaomu WANG Xiaohong GU Yingjie LIN Xiaodong ZHANG | 2017 | Agricultural Science & Technology2017，18，11： | 0 |
| 17 | Development of an Agrobacterium-mediated CRISPR/Cas9 system in pea(Pisum sativum L.)显示文摘Pea(Pisum sativum L.)is an annual cool-season legume crop.Owing to its role in sustainable agriculture as both a rotation and a cash crop,its global market is expanding and increased production is urgently needed.For both technical and regulatory reasons,neither conventional nor transgenic breeding techniques can keep pace with the demand for increased production.In answer to this challenge,CRISPR/Cas9 genome editing technology has been gaining traction in plant biology and crop breeding in recent years.However,there are currently no reports of the successful application of the CRISPR/Cas9 genome editing technology in pea.We developed a transient transformation system of hairy roots,mediated by Agrobacterium rhizogenes strain K599,to validate the efficiency of a CRISPR/Cas9 system.Further optimization resulted in an efficient vector,PsU6.3-tRNA-PsPDS3-en35S-PsCas9.We used this optimized CRISPR/Cas9 system to edit the pea phytoene desaturase(PsPDS)gene,causing albinism,by Agrobacterium-mediated genetic transformation.This is the first report of successful generation of gene-edited pea plants by this route. | Guan Li Rong Liu Rongfang Xu Rajeev KVarshney Hanfeng Ding Mengwei Li Xin Yan Shuxian Huang Juan Li Dong Wang Yishan Ji Chenyu Wang Junguang He Yingfeng Luo Shenghan Gao Pengcheng Wei Xuxiao Zong Tao Yang | 2023 | The Crop Journal2023，11，1： | 0 |
| 18 | Effects of Seed Vitality and Regeneration on Genetic Integrity in Soybean by SSR Markers显示文摘The seeds of Zhonghuang 18 were selected as a test material,and subjected to artificial aging treatment(0,112,154 and 196 d),obtaining four 4 populations,i.e.,G_0-1,G_0-2,G_0-3 and G_0-4,the germination rates of which were 98.0%,95.0%,81.0%and 79.0%,respectively.The four populations were reproduced twice in field,giving four populations of the first reproduced generation G_1-1,G_1-2,G_1-3 and G_1-4 and four populations of the second reproduced generation G_2-1,G_2-2,G_2-3 and G_2-4.The results showed that the number of alleles(Ae)per locus and genetic identity of all the treatment populations did not change significantly compared with the control population G_0-1,and population G_0-4 still shared 0.996 2 genetic identity with the control population,indicating that the genetic identity between the population with a germination rate of 79.0%and the control population was still high.The results of t test showed that populations G_0-2,G_1-1 and G_2-1 showed number of alleles per locus(A),genetic diversity index(H)and Shannon index without significantly differences from the control population G_0-1;populations G_1-2 and G_2-2 had the number of alleles per locus(A)significantly decreased;and the above genetic diversity parameters of populations G_0-3,G_0-4,G_1-3,G_1-4,G_2-3 and G_2-4 decreased significantly or very significantly.The results ofχ~2test showed that there were almost no differences in the allelic frequency distribution between populations G_0-2,G_1-1 and G_2-1 and the control populaiton G_0-1;and populations G_0-3,G_0-4,G_1-2,G_1-3,G_1-4,G_2-2,G_2-3and G_2-4 differed in allele frequency distribution,and the lower the vitality level,the greater the differences.Compared with the control population G_0-1,populations G_0-2,G_1-1 and G_2-1 had no significant changes in number of rare alleles,while populations G_0-3,G_0-4,G_1-2,G_2-2,G_1-3,G_1-4,G_2-3 and G_2-4 decreased significantly in number of rare alleles.The above results showed that compared with the control population,the progeny populations reproduced from the population with a germination rate of 98.0%had significant changes in genetic diversity and number of rare alleles,while the values of the progeny populations reproduced from populations having germination rates of 81.0%and 79.0%,respectively,decreased significantly,and the number of alleles per locus and number of rare alleles of the progeny populations reproduced from the population with a germination rate of 95.0%began to decrease.The decline in viability has a greater effect on the genetic structure of soybean germplasm populations than reproduction generation.It is recommended that the germination rate standard for regeneration of soybean germplasm with an initial germination rate of 98.0%should not be lower than 81.0%. | Dong WANG Xiaodong ZHANG Runfang LI Lingyun LU Xiaomu WANG Xiaohong GU Xia XIN Guangkun YIN Xinxiong LU Hanfeng DING | 2019 | Agricultural Biotechnology2019，8，1： | 0 |
| 19 | Modelling nitrogen abundances in the massive binary system显示文摘Understanding rotation,which has been identified as a very important factor in physics,is necessary in order to understand the evolution of massive stars[1,2].Rotation can drive mixing processes of chemical elements in the stellar interior[3-5].Nitrogen,a better tracer for rotational mixing during main sequence evolution,is produced in the hot interior layers by carbon conversion via CN-cycling on a very short time scale.On a longer time scale(about 1-2 Myr in the center of a 20M_⊙star)the CNO cycle comes into equilibrium,which leads to additional N at the expense of both carbon and oxygen. | JiangTao Wang HanFeng Song Zhi Li | 2017 | Science China(Physics,Mechanics & Astronomy)2017，60，5： | 0 |
| 20 | Decentralized output-feedback control of triangular large-scale nonlinear impulsive systems with time-varying delays:a gain scaling approach显示文摘In this study,we investigate the decentralized output-feedback control problem for a class of triangular large-scale nonlinear impulsive systems(TLSNISs)with time-varying delays.Unlike existing design approaches in impulsive systems,a gain scaling approach is proposed for the first time to counteract the structural uncertainties of interconnected nonlinearities.Specifically,by fully exploiting the static gain,novel delay-independent impulsive observers are delicately constructed to estimate the unavailable states.Furthermore,the undesirable effects of time-varying delays and impulsive disturbances are eliminated using the comparison principle and average impulsive interval technique.The designed gain-scaling-based decentralized output-feedback controllers have concise linear-like forms and are independent of time delays.Moreover,by strengthening the gain scaling mechanism,we further develop an improved control scheme that endows the controllers with the capability to tolerate unknown external disturbances,thus improving its robustness.It is shown that the system states converge exponentially to the origin in the disturbance-free case with the designed controllers(or to an adjustable neighborhood of the origin in the presence of disturbance).Finally,two examples,including an engineering system design example,are provided to demonstrate the effectiveness of the designed controllers for both lower TLSNISs and upper TLSNISs. | Debao FAN Xianfu ZHANG Weihao PAN Hanfeng LI | 2023 | Science China(Information Sciences)2023，66，11： | 0 |
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