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| 1 | Global correlation for strontium isotope curve in the Late Cretaceous of Tibet and dating marine sediments显示文摘87Sr/86Sr ratios of marine carbonate samples collected from a sedimentary section of the Late Cretaceous in the south of Tibet were measured. Based on the absence of cathodoluminescence and a very low Mn/Sr ratio (average 0.06) of the samples, it is thought that they contain information on the original seawater strontium isotope composition. The strontium isotope evolution curve of the Late Cretaceous in Tibet we established here, is consistent with other coeval curves from Europe, North America and Antarctica, supports the notion that the strontium isotope composition of seawater is governed by global events, which provides a new approach for the inter-continental and inter-basinal correlations of Late Cretaceous in the area and is a complementarity for biostratigraphy. In addition, we attempt to determine the age of the boundaries for Campanian/Santonian and Maastrichtian/Campanian by 87Sr/86Sr ratios for Gamba section in southern Tibet. The two boundaries are located in the thickness of 217 m (83.5 Ma) and 291 m (71.3 Ma), respectively. | HUANG Sijing SHI He SHEN Licheng ZHANG Meng WU Wenhui | 2005 | Science China Earth Sciences2005，48，2： | 11 |
| 2 | Combination Mechanism and Enhanced Visible-Light Photocatalytic Activity and Stability of CdS/g-C3N4 Heterojunctions显示文摘In this study,CdS/g-C_3N_4(CSCN) heterojunctions were in situ fabricated with a large amount of Cd S nanoparticles anchored on g-C_3N_4 nanosheets.A wet chemical method was developed for the first time to determine the actual content of Cd S in CSCN composites.X-ray diffraction(XRD),Fourier transform infrared spectra(FTIR),high-resolution transmission electron microscopy(HRTEM) and UV-vis diffuse reflectance spectra(DRS) were employed to characterize the composition,structure and optical property of CSCN composites.Based on the isoelectric point(IEP) analysis of g-C_3N_4,a conclusion was obtained on the combination mechanism between Cd S nanoparticles and g-C_3N_4 nanosheets.The photocatalytic activity of CSCN composites was much better than those of individual Cd S and g-C_3N_4 for the degradation of azo dye Methyl Orange(MO) by 40 min adsorption in the dark followed by 15 min photocatalysis under visible light irradiation.After 5 cycles,CSCN composites still maintained high reactive activity with the MO degradation efficiency of 93.8%,exhibiting good photocatalytic stability.The Cd2+concentration dissolved in the supernatant detected by atomic absorption spectroscopy(AAS) of CSCN composites was lower than that of pure Cd S,implying that the photocorrosion of Cd S could be suppressed via the combination with g-C_3N_4.Photoluminescence emission spectra(PL) results clearly revealed that the recombination of photogenerated electron-hole pairs in CSCN composites was effectively inhibited due to the formation of heterojunctions.Based on the band alignments of g-C_3N_4 and Cd S,the possible photocatalytic mechnism was discussed. | Huanyan Xu Licheng Wu Liguo Jin Kejia Wu | 2017 | Journal of Materials Science & Technology2017，33，1： | 10 |
| 3 | Surface Partial Discharge Characteristics of Oil-paper Insulation Under Combined AC-DC Voltage显示文摘The valve side windings of converter transformers bear AC, DC, impulse, and reversal-polarity voltages during operation, which could result in serious insulation problems of the equipment. By performing experiments with surface discharge model of oil-paper insula- tion at 80 ℃ under combined AC-DC voltage for 200 h, we studied the spectrums and statistical parameters of partial discharges at different discharge stages. Furthermore, some fingerprint parameters were calculated in order to estimate the development situation of par- tial discharge, while the characteristic gases dissolved in the transformer oil were measured by gas chromatography. The surface discharges in the experiments were observed using a high speed camera, and a full discharge process could be marked off into four stages as follows. ①The elementary stage. When a partial discharge occurs near electrodes, electrical charges are injected into the region near electrodes and causing bubble generation. ②Due to their high resistivity and low dielectric constant, the bubbles would bare the major part of the voltage applied to samples. Therefore, discharge happens inside the small bubbles, and it emits a lot of light. ③Micromolecules of gas are produced in discharge, and further ionization in the transformer oil takes place simultaneously when high-energy electrons collide with oil molecules. ④The carrier charge moves forward to electrodes driven by the applied electric field, till they neutralize with the charge from electrodes, and hence discharge channels are formed subsequently. | SHA Yanchao ZHOU Yuanxiang NIE Dexin WU Zhirong DENG Jiangang LU Licheng | 2013 | 高电压技术2013，39，8： | 5 |
| 4 | Carbon dioxide degassing flux from two geothermal fields in Tibet,China显示文摘在地质的时间规模上,排除的土在大气的二氧化碳(CO_(2) ) 上有重要影响集中,它是全球碳周期模型的一个重要部件。在西藏,结构的条件和联系普遍地热的系统导致在地热的水移植期间排除的二氧化碳。我们在西藏的高原上描绘了二块地热的地的 hydrochemical 条件。地热的水的化学作文被 K 长石和钠长石控制。Langjiu 地热的地里的地热的水是钠氯化物类型, Dagejia 地热的地的那些是钠酸式碳酸盐类型。在二个 hydrogeothermal 系统以内的 CO_(2) 部分压力的模拟证明排除的 CO_(2) 从含水土层发生在热水移植期间到表面。来自 Langjiu 地热的地的二氧化碳排除流动被估计是 3.6 吗? | SHEN LiCheng WU KunYu XIAO Qiong YUAN DaoXian | 2011 | Chinese Science Bulletin2011，56，35： | 5 |
| 5 | The transient fracture behavior for a functionally graded layered structure subjected to an in-plane impact load显示文摘The transient fracture behavior of a functionally graded layered structure subjected to an in-plane impact load is investigated. The studied structure is composed of two homogeneous layers and a functionally graded interlayer with a crack perpendicular to the boundaries. The impact load is applied on the face of the crack. Fourier transform and Laplace transform methods are used to formulate the present problem in terms of a singular integral equation in Laplace transform domain. Considering variations of parameters such as the nonhomogeneity constant, the thickness ratio and the crack length, the dynamic stress intensity factors (DSIFs) in time domain are studied and some meaningful conclusions are obtained. | Licheng Guo Linzhi Wu Yuguo Sun Li Ma | 2005 | Acta Mechanica Sinica2005，21，3： | 5 |
| 6 | Influences of air CO2 on hydrochemistry of drip water and implications for paleoclimate study in a stream-developed cave, SW China显示文摘Cave air CO_2 is a vital part of the cave environment. Most studies about cave air CO_2 variations are performed in caves with no streams; there are few studies to date regarding the relationship of cave air CO_2 variations and drip water hydrochemistry in underground stream–developed caves. To study the relationship of underground stream, drip water, and cave air CO_2, monthly and daily monitoring of air CO_2 and of underground stream and drip water was performed in Xueyu Cave from 2012 to 2013.The results revealed that there was marked seasonal variation of air CO_2 and stream hydrochemistry in the cave. Daily variations of cave air CO_2, and of stream and drip water hydrochemistry, were notable during continuous monitoring.A dilution effect was observed by analyzing hydrochemical variations in underground stream and drip water after rainfall. High cave air CO_2 along with low p H and low δ^(13)C DIC in stream and drip water indicated that air CO_2 was one of the dominant factors controlling stream and drip water hydrochemistry on a daily scale. On a seasonal scale, stream flows may promote increased cave air CO_2 in summer; in turn, the higher cave air CO_2 could inhibit degassing of drip water and make calcite δ^(13)C more negative. Variation of calcite δ^(13)C(precipitated from drip water) was in reverse of monthly temperature, soil CO_2, and cave air CO_2. Therefore,calcite δ^(13)C in Xueyu Cave could be used to determine monthly changes outside the cave. However, considering the different precipitation rate of sediment in different seasons,it was difficult to use stalagmites to reconstruct environmental change on a seasonal scale. | Xiaoxiao Wang Yanhong Wu Licheng Shen | 2016 | Acta Geochimica2016，35，2： | 4 |
| 7 | Image fusion based on a new contourlet packet显示文摘 | Shuyuan Yang Min Wang Licheng Jiao Ruixia Wu Zhaoxia Wang | 2009 | Information Fusion2009，，2： | 2 |
| 8 | Adsorption of acid fuchsin onto LTA-type zeolite derived from fly ash显示文摘A facile strategy without organic template was developed for the conversion of fly ash to LTA-type zeolite(LTA-Z),which could be used as a good adsorbent for the removal of acid fuchsin(AF).XRD results indicated that the pure crystalline product was obtained with the structure of LTA-type zeolite.SEM investigations showed that the well-defined LTA-Z crystals exhibited uniform size with the same cubic shape.The maximum AF adsorption amount was observed at pH=5,slightly lower than pHPZC of LTA-Z.Higher temperature favored AF adsorption onto LTA-Z and it was an endothermic process.Furthermore,AF adsorption amount increased with initial AF concentration increasing and LTA-Z dosage decreasing.Surface sorption governed this process at the initial 120 min period,followed by the internal diffusion of AF molecules between porous sites.The Langmuir model was determined as the adsorption isothermal,suggesting that the monolayer coverage of AF on LTA-Z surface was involved. | XU HuanYan WU LiCheng SHI TianNuo LIU WeiChao QI ShuYan | 2014 | Science China(Technological Sciences)2014，57，6： | 2 |
| 9 | A chromosome-level genome assembly reveals that a bipartite gene cluster formed via an inverted duplication controls monoterpenoid biosynthesis in Schizonepeta tenuifolia显示文摘Biosynthetic gene clusters(BGCs)are regions of a genome where genes involved in a biosynthetic pathway are in proximity.The origin and evolution of plant BGCs as well as their role in specialized metabolism remain largely unclear.In this study,we have assembled a chromosome-scale genome of Japanese catnip(Schizonepeta tenuifolia)and discovered a BGC that contains multiple copies of genes involved in four adjacent steps in the biosynthesis of p-menthane monoterpenoids.This BGC has an unprecedented bipartite structure,with mirrored biosynthetic regions separated by 260 kilobases.This bipartite BGC includes identical copies of a gene encoding an old yellow enzyme,a type of flavin-dependent reductase.In vitro assays and virus-induced gene silencing revealed that this gene encodes the missing isopiperitenone reductase.This enzyme evolved from a completely different enzyme family to isopiperitenone reductase from closely related Mentha spp.,indicating convergent evolution of this pathway step.Phylogenomic analysis revealed that this bipartite BGC has emerged uniquely in the S.tenuifolia lineage and through insertion of pathway genes into a region rich in monoterpene synthases.The cluster gained its bipartite structure via an inverted duplication.The discovered bipartite BGC for p-menthane biosynthesis in S.tenuifolia has similarities to the recently described duplicated p-menthane biosynthesis gene pairs in the Mentha longifolia genome,providing an example of the convergent evolution of gene order.This work expands our understanding of plant BGCs with respect to both form and evolution,and highlights the power of BGCs for gene discovery in plant biosynthetic pathways. | Chanchan Liu Samuel J.Smit Jingjie Dang Peina Zhou Grant T.Godden Zheng Jiang Wukun Liu Licheng Liui Wei Lin Jinao Duan Qinan Wu Benjamin R.Lichman | 2023 | Molecular Plant2023，16，3： | 2 |
| 10 | Will the Historic Southeasterly Wind over the Equatorial Pacific in March 2022 Trigger a Third-year La Niña Event?显示文摘Based on the updates of the Climate Prediction Center and International Research Institute for Climate and Society(CPC/IRI)and the China Multi-Model Ensemble(CMME)El Niño-Southern Oscillation(ENSO)Outlook issued in April 2022,La Niña is favored to continue through the boreal summer and fall,indicating a high possibility of a three-year La Niña(2020-23).It would be the first three-year La Niña since the 1998-2001 event,which is the only observed three-year La Niña event since 1980.By examining the status of air-sea fields over the tropical Pacific in March 2022,it can be seen that while the thermocline depths were near average,the southeasterly wind stress was at its strongest since 1980.Here,based on a quaternary linear regression model that includes various relevant air-sea variables over the equatorial Pacific in March,we argue that the historic southeasterly winds over the equatorial Pacific are favorable for the emergence of the third-year La Niña,and both the anomalous easterly and southerly wind stress components are important and contribute~50%of the third-year La Niña growth,respectively.Additionally,the possible global climate impacts of this event are discussed. | Xianghui FANG Fei ZHENG Kexin LI Zeng-Zhen HU Hongli REN Jie WU Xingrong CHEN Weiren LAN Yuan YUAN Licheng FENG Qifa CAI Jiang ZHU | 2023 | Advances in Atmospheric Sciences2023，40，1： | 2 |
| 11 | Earliest domestication of common millet(Panicummiliaceum)in East Asia extended to 10 000 years ago显示文摘 | Houyuan Lu Jianping Zhang Kam-biu Liu Naiqin Wu Yumei Li Kunshu Zhou Maolin Ye Tianyu Zhang Hai-jiang Zhang Xiaoyan Yang Licheng Shen Deke Xu Quan Li | 2009 | PNAS2009，106，18： | 1 |
| 12 | Designing an underactuated mechanism for a 1 active DOF finger operation显示文摘 | WU LiCheng GIUSEPPE C | | 0，，02： | 1 |
| 13 | Prediction of Missing Links Based on Multi-Resolution Community Division显示文摘 | Ding Jingyi Jiao Licheng Wu Jianshe | 2015 | Physica A: Statistical Mechanics and its Applications2015，417，： | 1 |
| 14 | Average time synchro- nization in wireless sensor networks by pairwise messages 显示文摘 | Wu Jianshe Jiao Licheng Ding Ranran | 2012 | Computer Communications2012，35，2： | 1 |
| 15 | Overlapping Community Detection Via Network Dynamics 显示文摘 | Wu Jianshe Jiao Licheng Jin Chao | 2012 | Physical Review E2012，85，1： | 1 |
| 16 | Screening of Endophytic Fungi with Antithrombotic Activity and Identication of a Bioactive Metabolite from the Endophytic Fungal Strain CPCC 480097显示文摘 | Wu Bin Wu Licheng Ruan Lingao | 2009 | Curr Microbiol2009，58，： | 1 |
| 17 | A finite element model for failure analysis of 3D braided composites显示文摘 | Zeng Tao Wu Linzhi Guo Licheng | 2004 | Materials Science and Engineering A2004，366，1： | 1 |
| 18 | Over- lapping community detection via network dynamics 显示文摘 | WU Jianshe JIAO Licheng JIN Chao | 2012 | PhysRev: E2012，85，01： | 1 |
| 19 | A finite element model for failure analysis of 3D braided composites显示文摘 | Zeng Tao Wu Linzhi Guo Licheng | 2004 | Material Science and Engineering2004，366，1： | 1 |
| 20 | Mechanical analysis of 3D braided composites:A finite element model显示文摘 | Zeng Tao Wu Linzhi Guo Licheng | 2004 | Composite Structures2004，64，34： | 1 |
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