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| 1 | Weighted Discriminative Sparse Coding for Image Classification显示文摘In the discriminative sparse coding,the reconstruction residual over each class-specific subdictionary can provide great discriminative and label information. In this paper, we propose a weighted discriminative sparse coding method by using the residual as the weight. For a test sample, we first compute its sparse code over each learnt sub-dictionary, and then use the reconstruction residual over each sub-dictionary to weight the corresponding sub-dictionary, thereby forming a weighted sample-specific structure dictionary, over which we compute a new sparse code for the test sample. This code carries more discriminative information about interclass difference. Our method yields a unique structure dictionary for each test sample, so that samples with the same class labels have more similar distributions of dictionary atom contributions. Experimental results demonstrate that the proposed method outperforms some state-of-the-art methods under the same learning conditions. | ZHANG Lihe ZHANG Kunyu | 2014 | Chinese Journal of Electronics2014，23，1： | 4 |
| 2 | Roles of pre-formed martensite in below-Ms bainite formation,microstructure,strain partitioning and impact absorption energies of low-carbon bainitic steel显示文摘The roles of pre-formed martensite(PM)in below-Ms bainite formation,microstructure,crystallography,strain partitioning and mechanical properties of a low-carbon bainitic steel were investigated using electron-backscattered diffraction,transmission electron microscopy,micro digital image correlation technique and mechanical tests.It is demonstrated that the pre-formation of martensite eliminates the incubation time for bainite transformation at various austempering temperatures below Ms,indicative of its acceleration effect at the early stage of transformation.This effect is mainly attributed to the surfaces or tips of the PM acting as the nuclei of subsequently-formed bainite,with initial bainite tending to form around the PM.However,the finishing time for below-Ms bainite transformation,especially at even lower temperatures,is retarded,owing to the dividing effect of PM on parent austenite grains,the decreasing effect of lowered isothermal temperature on the diffusion rate of carbon atoms and the strengthening effect of lowered isothermal temperature on supercooled austenite.PM and its adjacent bainitic laths have nearly the same crystallographic orientation and belong to the same block.The pre-formation of martensite largely refines the bainitic blocks/laths and retained austenite.The specimens with PM show relatively uniform strain partitioning among various phases,contrasting with the specimens without PM,for which strains are highly concentrated in the bainite region nearby fresh martensite/austenite(M/A)blocks or between adjacent M/A blocks.The impact absorption energies of the specimens with PM,when austempered at 30-60℃ below Ms,are more than twice higher than those of the specimens without PM,at no expense of tensile properties. | Lihe Qian Zhi Li Tongliang Wang Dongdong Li Fucheng Zhang Jiangying Meng | 2022 | Journal of Materials Science & Technology2022，，1： | 4 |
| 3 | The Discovery of Magnesioferrite from Au (Fe, Cu) Magnesian Skarn Deposits and Study of the Magnesioferrite-Magnesiomagnetite Series显示文摘Magnesioferrite, a rare metasomatic mineral, was discovered for the first time in China from the Qinlou Au (Fe, Cu) magnesian skarn deposit, Sanpu, Huaibei, Auhui Province, and the Mulonggou Fe (Mo, Cu) magnesian skarn deposit, Luonan County, Shaanxi Province. In this paper, the geological setting, mineral associations, chemical composition, some physical properties, X-ray powder diffraction data and infrared spectroscopy of magnesioferrite and magnesiomagnetite are discussed. Magnesioferrite contains 17.66%-13.48% of MgO. Its main associated minerals are clinohumite, chondrodite, serpentine,, calcite and magnesiomagnetite. The density of magnesioferrite is 4.537-4.720, reflectances in percent are: 17.8-18.1, hardness is 838-900 kg/mm2, and the cell parameter a0 = 8.371-8.379 A. A systematic study of the magnesioferrite-magnesiomagnetite-magnetite series suggests that along with the increase of magnesioferrite molecules in the mineral, the density, reflectances and cell parameters decrease | ZHAO Yiming ZHANG Yinan BI Chengsi GUO Lihe | 1998 | Acta Geologica Sinica(English Edition)1998，72，4： | 3 |
| 4 | Microstructure and mechanical properties of a low carbon carbide-free bainitic steel co-alloyed with Al and Si显示文摘 | Lihe Qian Qian Zhou Fucheng Zhang Jiangying Meng Ming Zhang Yuan Tian | 2012 | Materials and Design2012，，： | 2 |
| 5 | Synthesis and Anti-HIV Activity of a Series of 6-Modified 2',3'-Dideoxyguanosine and 2',3'-Didehydro-2',3'- dideoxyguanosine Analogs显示文摘寻找潜在的 2,3-dideoxyguanosine (ddG ) 和 2,3-didehydro-2,3-dideoxyguanosine (D4G ) prodrugs,一系列 6-modified ddG, D4G 类似物在基于房间的试金为他们的 anti-HIV 活动和 cytotoxities 被综合并且评估。所有类似物显示出低 cytotoxicities,他们中的一些显示了良性的 anti-HIV 活动。在 vivo, ddGTP 和 D4TTP 的活跃 triphosphate 形式,被一个新奇、灵巧的“一个壶”也综合方法。由 Taq, Therminater DNA 聚合酶和在 DNA/RNA 海滨合并的 HIV 反向的 transcriptase (RT ) 的 ddGTP 和 D4TTP 的识别被一个非放射性方法调查, Km 是坚定的。 | Lujia Xie Xiantao Yang Delin Pan Yingli Cao Mou Cao Guichun Lin Zhu Guan Ying Guo Lihe Zhang Zhenjun Yang | 2013 | Chinese Journal of Chemistry2013，31，9： | 2 |
| 6 | Design, Synthesis and Biological Evaluation of Pentacyclic Triterpene Dimers as HCV Entry Inhibitors显示文摘 | Lingkuan Meng Qi Wang Tao Tang Sulong Xiao Lihe Zhang Demin Zhou Fei Yu | 2017 | Chinese Journal of Chemistry2017，35，8： | 2 |
| 7 | Graph-regularized saliency detection with convex-hull-based center prior显示文摘 | Chuan Yang Lihe Zhang Huchuan Lu | 2013 | IEEE Sigal Processing Letters2013，20，7： | 1 |
| 8 | Quantification of groundwater recharge and evapotranspiration along a semi-arid wetland transect using diurnal water table fluctuations显示文摘Groundwater is a vital water resource in arid and semi-arid areas.Diurnal groundwater table fluctuations are widely used to quantify rainfall recharge and groundwater evapotranspiration(ET_(g)).To assess groundwater resources for sustainable use,we estimated groundwater recharge and ET_(g) using the diurnal water table fluctuations at three sites along a section with different depths to water table(DWT)within a wetland of the Mukai Lake in the Ordos Plateau,Northwest China.The water table level was monitored at an hourly resolution using a Keller DCX-22 A data logger that measured both the total pressure and barometric pressure,so that the effect of barometric pressure could be removed.At this study site,a rapid water table response to rainfall was observed in two shallow wells(i.e.,Obs1 and Obs2),at which diurnal water table fluctuations were also observed over the study period during rainless days,indicating that the main factors influencing water table variation are rainfall and ET_(g).However,at the deep-water table site(Obs3),the groundwater level only reacted to the heaviest rainfalls and showed no diurnal variations.Groundwater recharge and ET_(g) were quantified for the entire hydrological year(June 2017–June 2018)using the water table fluctuation method and the Loheide method,respectively,with depth-dependent specific yields.The results show that the total annual groundwater recharge was approximately 207 mm,accounting for 52%of rainfall at Obs1,while groundwater recharge was approximately 250 and 21 mm at Obs2 and Obs3,accounting for 63%and 5%of rainfall,respectively.In addition,the rates of groundwater recharge were mainly determined by rainfall intensity and DWT.The daily mean ET_(g) at Obs1 and Obs2 over the study period was 4.3 and 2.5 mm,respectively,and the main determining factors were DWT and net radiation. | JIA Wuhui YIN Lihe ZHANG Maosheng ZHANG Xinxin ZHANG Jun TANG Xiaoping DONG Jiaqiu | 2021 | Journal of Arid Land2021，13，5： | 1 |
| 9 | Effect of secondary cracks on hydrogen embrittlement of bainitic steels显示文摘 | Chunlei Zheng Bo Lv Fucheng Zhang Zhigang Yan Rui Dan Lihe Qian | 2012 | Materials Science & Engineering A2012，，： | 1 |
| 10 | Ghrelin prevents doxorubicin-induced cardiotoxicity through TNF-alpha/NF-κB pathways and mitochondrial protective mechanisms显示文摘 | Zhiwei Xu Shiqing Lin Weikang Wu Hongmei Tan Zhi Wang Chao Cheng Lihe Lu Xuanhong Zhang | 2008 | Toxicology2008，，2： | 1 |
| 11 | Fast fourier transform option pricing with stochastic interest rate, stochastic volatility and double jumps显示文摘 | ZHANG Sumei WANG Lihe | 2013 | Applied Mathematics and Computation2013，219，10： | 1 |
| 12 | A GIS-based DRASTIC model for assessing groundwater vulnerability in the Ordos Plateau, China 显示文摘 | Yin Lihe Zhang Eryong Wang Xiaoyong | 2013 | Environmental Earth Sciences2013，69，： | 1 |
| 13 | Flow-injection determination of trace amounts of dopamine by chemiluminescence detection显示文摘 | ZHANG Lihe TESHIMA N HASEBE T | 1999 | Talanta1999，50，3： | 1 |
| 14 | Atomic-scale simulation of a/r-iron phase boundary affecting crack propagation using molecular dynamics method 显示文摘 | Zhang Yan Zhang Fucheng Qian Lihe | 2011 | Computational Materials Science2011，50，： | 1 |
| 15 | Nucleolin-targeting liposomes guided by aptamer AS1411 for the delivery of siRNA for the treatment of malignant melanomas显示文摘 | Liyu Li Jianjun Hou Xinjie Liu Yujia Guo Yun Wu Lihe Zhang Zhenjun Yang | 2014 | Biomaterials2014，，： | 1 |
| 16 | Loss of silencing activity caused by 5′-terminal modification with D-/L-isonucleotide(isoNA) or locked nucleic acid(LNA) could not be restored by 5′-terminal phosphorylation显示文摘In this study,a series of 5′-phosphorylated siRNAs with D-/L-isonucleotide(isoNA)or locked nucleic acid(LNA)incorporated at the 5′-terminus were synthesized.It was found that after incorporating either isoNA or LNA at the 5′-terminus of the antisense strand or sense strand,the silencing activity of modified strands has been inhibited,which cannot be recovered by phosphorylation at the 5′-terminus;however,the silencing activity of unmodified strand to its own target was increased.This work indicates that the isoNA and LNA modification at 5′-terminus can interfere with the strand selection during the RISC assembling process,and the disturbance of the 5′-phosporylation should not be the only viable mechanism. | HUANG Ye CHEN Zhuo WANG Zhuo LI YaTing CHEN Yue YANG ZhenJun ZHANG LiHe | 2014 | Science China Chemistry2014，57，2： | 1 |
| 17 | Synthesis and activity of novel indole derivatives as inhibitors of CD38显示文摘CD38 is a multifunctional enzyme/receptor expressed in a variety of mammalian tissues,regulating a wide range of physiological functions.Beginning with the previously reported compound 1,an inhibitor of human CD38 NADase,we synthesized a series of indole-based NH-substituted derivatives with modifications on alkyl chains,changes in substituent groups on aromatic rings,and differences in carbon chain lengths.Compounds 10,13,16 and 34 exhibited moderate inhibition of human CD38 NADase.Analysis of the structure-activity relationships showed that the phenylpropionyl moiety was very important for the inhibitory activity.This study provides information for the rational design of CD38 inhibitors. | Dongying Wu Kaiyiu Ting Yaokai Duan Na Li Jianguo Li Liangren Zhang Honcheung Lee Lihe Zhang | 2013 | Acta Pharmaceutica Sinica B2013，3，4： | 1 |
| 18 | Inconsistent effects of mechanical stability of retained austenite on ductility and toughness of transformation-induced plasticity steels显示文摘 | Qian Zhou Lihe Qian Jun Tan Jiangying Meng Fucheng Zhang | 2013 | Materials Science & Engineering A2013，，： | 1 |
| 19 | Low-Rank Decomposition and Laplacian Group Sparse Coding for Image Classification显示文摘 | Zhang Lihe Ma Chen | 2014 | Neurocomputing2014，35，7： | 1 |
| 20 | Mercury contaminated and its potential health effects in a lead-zinc mining area in the karst region of Guangxi, China 显示文摘 | DENG Ghaohing ZHANG Chaolan LI Lihe | 2011 | Appl Geochem2011，26，2： | 1 |
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