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| 1 | Progesterone treatment before experimental hypoxia-ischemia enhances the expression of glucose transporter proteins GLUT1 and GLUT3 in neonatal rats显示文摘Progesterone is an efficient candidate for treating stroke and traumatic brain damage. The current study was designed to investigate the effects of progesterone on glucose transporter proteins (GLUT1 and GLUT3) during hypoxic-ischemic injury in a neonatal rat model. We demonstrated strong staining for GLUT1 in the walls of blood vessels and GLUT3 immunoreactivity in hippocampal neurons after hypoxiaischemia. Hypoxia-ischemia elevated GLUT1 and GLUT3 at both the mRNA and protein levels in the hippocampus, and pre-treatment with progesterone (8 mg/kg) further enhanced their accumulation until 24 h after hypoxic-ischemic injury. These results showed that progesterone treatment induced the accumulation of both GLUT1 and GLUT3 transporters, and an energy-compensation mechanism may be involved in the neuroprotective effect of progesterone during hypoxic-ischemic injury after cerebral ischemic attacks. | Xinjuan Li Hua Han Ruanling Hou Linyu Wei Guohong Wang Chaokun Li Dongliang Li | 2013 | Neuroscience Bulletin2013，29，3： | 7 |
| 2 | Enhanced mechanical property and tunable dielectric property of SiC_(f)/SiC-SiBCN composites by CVI combined with PIP显示文摘The SiBCN matrix via chemical vapor infiltration(CVI)or/and polymer infiltration pyrolysis(PIP)technologies was orderly introduced to SiC_(f)/SiC composites to optimize the mechanical property and electromagnetic(EM)shielding effectiveness simultaneously.The BN interface with the thickness of 350 nm was designed to obtain a little stronger interface bonding.The flexural strength of SiC_(f)/SiC-SiBCN composites reached 545.45±29.59 MPa thanks to the crack deflection between the CVI SiC and CVI SiBCN,as well as CVI SiBCN and PIP SiBCN matrix because of the modulus difference between them.The fracture toughness(KiC)with the value of 16.02±0.94 MPa·m^(1/2) was obtained owing to the extension of crack propagation path.The adverse effect of stronger interface bonding was eliminated by the design of matrix microstructure for SiC_(f)/SiC-SiBCN composites.The thermal conductivity in the thickness direction was 7.64 W·(m·K)^(-1) at 1200℃and the electric resistivity decreased to 1.53×10^(3) Ω·m.The tunable dielectric property was obtained with the coordination of wave-absorption CVI SiBCN matrix and impedance matching PIP SiBCN matrix,and the total shielding effectiveness(SE_(T))attained 30.01 dB.It indicates that the SiC_(f)/SiC-SiBCN composites have great potential to be applied as structural and functional materials. | Chaokun SONG Yongsheng LIU Fang YE Laifei CHENG Pengfei ZHANG Nan CHAI | 2021 | Journal of Advanced Ceramics2021，10，4： | 4 |
| 3 | Review on Connections for Original Bamboo Structures显示文摘Bamboo is a green construction material in line with sustainable development strategies.The use of raw bamboo in architecture has existed since ancient times.In the long development years of original bamboo buildings,many areas in the world gradually formed unique bamboo buildings,which have become an important local cultural feature.For building structures,joints are the key to ensure structural load transfer.Because of hollow and thin-walled material property of bamboo,the connection in raw bamboo buildings has always been a major difficulty and problem in the application of bamboo,which seriously hinders the development of original bamboo structures.In order to promote the use of raw bamboo,two traditional connection methods in raw bamboo structures are described in this paper firstly,with the advantages and disadvantages of the two methods pointed out.Also,research progress on four categories of raw bamboo building joints is described namely,bolt joints,steel member joints,filler reinforced joints and other types of joints.This work can provide a reference for future research and engineering applications. | Chaokun Hong Haitao Li Rodolfo Lorenzo Gang Wu Ileana Corbi Ottavia Corbi Zhenhua Xiong Dong Yang Huizhong Zhang | 2019 | Journal of Renewable Materials2019，7，8： | 3 |
| 4 | Genetic interpretation of fish swimming trails and calculation of fish-body length in Late Triassic Hengshan, Shannxi Province, China显示文摘The fish swimming trail fossils are rare and, therefore, precious. The specimen de-scribed abroad are generally smaller or more poorly preserved. The specimens used in the pre-sent study and derived from the Mesozoic strata in Hengshan County, Shaanxi Province, China, are rare because of their completeness (with the length of the specimen reaching 4 m), exquisiteness and largeness in trace body. These specimens, classified as four ichnospecies, including two new ones, show the morphological pattern of the fish swimming trails. The trace fish bodies are calculated to be 32—92 cm long. | LU Zongsheng HOU Jianxiang CHEN Bin HAO Chaokun LI Xiaoyan | 2004 | Science China Earth Sciences2004，47，3： | 2 |
| 5 | Experimental Research on Structural Behaviors of Glulam I-Beam with a Special-Shaped Section显示文摘In order to enhance the bearing capacity of structural components,save materials,and reduce cost,a glued laminated timber(glulam)I-beam that is theoretically suitable for engineering application was proposed.In this study,18 glulam specimens were fabricated using larch dimension lumber and resorcinol-formaldehyde resin.Four-point bending tests were carried out to compare the ultimate bearing capacity,strain,and deflection of various specimens.The results showed that:(1)The typical failure mode at bending is the web shear failure parallel to grain.Before the failure,cracks and sounds appear at the beam web,which represent the sudden brittle failure.(2)The cross-sectional strain of glulam beam changed linearly with the beam height,indicating that the plane section assumption was basically established.(3)Stiffener could improve the initial flexural stiffness of glulam beam,which experiences an increase of 28.21%.Larger the shear span ratio,smaller the initial flexural stiffness.The initial flexural stiffness improves by 10-23.5%with the increase in the thickness of the lower flange.(4)The effects of stiffener and shear-span ratio on shear strength are relatively significant.After the stiffeners are set at the support and the loading point in pairs,the shear strength of the glulam beam increases by 15.05%averagely.With the increase in the shear-span ratio,the shearing strength of the glulam I-beam gradually reduces.The equation of the shearing strength with the shear span ratio is obtained,which is shown by high fitting precision.(5)The shear strength correlation,as proposed by Soltis and Rammer,is suitable not only for rectangular beams,but also for glulam I-beams. | Ruyuan Yang Chaokun Hong Xiaofeng Zhang Quan Yuan Youfu Sun | 2020 | Journal of Renewable Materials2020，8，2： | 2 |
| 6 | Long-term ceramic matrix composite for aeroengine显示文摘Three strategies were proposed to prolong the service life of continuous fiber-reinforced silicon carbide ceramic matrix composite(CMC-SiC),which served as thermal-structure components of aeroengine at thermo-mechanical-oxygenic coupling environment.As for some thermal-structure components with low working stress,improving the degree of densification was crucial to prolong the service life,and the related process approaches were recited.If the thermal-structure components worked under moderate stress,the matrix cracking stress(σ^(mc))should be improved as far as possible.The fiber preform architecture,interface shear strength,residual thermal stress,and matrix strengthening were associated withσ_(mc)in this review.Introducing self-healing components was quite significant with the appearance of matrix microcracks when CMC-SiC worked at more severe environment for hundreds of hours.The damage can be sealed by glass phase originating from the reaction between self-healing components and oxygen.The effective self-healing temperature range of different self-healing components was first summarized and distinguished.The structure,composition,and preparation process of CMC-SiC should be systematically designed and optimized to achieve long duration target. | Chaokun SONG Fang YE Laifei CHENG Yongsheng LIU Qing ZHANG | 2022 | Journal of Advanced Ceramics2022，11，9： | 1 |
| 7 | Viséan Fossil Plants from the Jiujialu Formation in Central Guizhou Province: Implications for Age of Bauxite and Palaeoenvironment显示文摘Fossil plants from the carbonaceous shale of upper part of the Lower Carboniferous Jiujialu Formation in Lindai bauxite deposit fill a gap regarding the distribution of Early Carboniferous flora in Central Guizhou Province.Here the Lindai plant assemblage is systematically described,and its composition and geological age are discussed.Research demonstrates that 9 species in 6 genera of the fossil plants are discovered in this study,and they belong to lycopsids,sphenopsids and ferns,respectively.Based on the analysis of the floral composition,the geological age of the Lindai plant assemblage belongs to the Early Carboniferous Viséan.The discovery of Lindai plant assemblage not only provides a new fossil evidence to restrict the age of bauxite deposits in Lower Carboniferous Jiujialu Formation of Central Guizhou Province,but also has great significance to further research the palaeoecological setting and floral evolution during the Early Carboniferous. | LUO Chaokun YANG Ruidong GAO Junbo Muhammad UMAIR WANG Longbo GAO Lei | 2020 | Acta Geologica Sinica(English Edition)2020，94，6： | 1 |
| 8 | Optimizationof multilayered ZnO whiskerradarabsorbingcoatingsusingmicrogeneticalgorithm 显示文摘 | ChaoKun LiuYunlin YangRugui etal | 2007 | JournalofFunctionalMaterials2007，38，1： | 1 |
| 9 | A Healable, Semitransparent Silver Nanowire‐Polymer Composite Conductor显示文摘 | Chaokun Gong Jiajie Liang Wei Hu Xiaofan Niu Sungwon Ma H. Thomas Hahn Qibing Pei | 2013 | Adv Mater2013，，30： | 1 |
| 10 | Cs-Drm: A cloud-based SIM DRM scheme for mobile Internet 显示文摘 | Wang Chaokun Zou Peng Liu Zhang | 2011 | EU- RASIP Journal on Wireless Communications and Networking2011，，： | 1 |
| 11 | The Design and Implementation of a Digital Music Library显示文摘 | Wang Chaokun Li Jianzhong Shi Shengfei | 2006 | International Journal on Digital Libraries2006，6，1： | 1 |
| 12 | CS-DRM :a cloud-based SIM DRM scheme for mobile internet 显示文摘 | Wang Chaokun Zou Peng Liu Zhang | 2011 | Eurasip Journal on Wireless Communications and Networ-king2011，，1： | 1 |
| 13 | A Hybrid Algorithm Based on Binary Chemical Reaction Optimization and Tabu Search for Feature Selection of High-Dimensional Biomedical Data显示文摘In recent years, there have been rapid developments in various bioinformatics technologies, which have led to the accumulation of a large amount of biomedical data. The biomedical data can be analyzed to enhance assessment of at-risk patients and improve disease diagnosis, treatment, and prevention. However, these datasets usually have many features, which contain many irrelevant or redundant information. Feature selection is a solution that involves finding the optimal subset, which is known to be an NP problem because of the large search space.Considering this, a new feature selection approach based on Binary Chemical Reaction Optimization algorithm(BCRO) and k-Nearest Neighbors(KNN) classifier is presented in this paper. Tabu search is integrated with CRO framework to enhance local search capacity. KNN is adopted to evaluate the quality of selected candidate subset. The results for an experiment conducted on nine standard medical datasets demonstrate that the proposed approach outperforms other state-of-the-art methods. | Chaokun Yan Jingjing Ma Huimin Luo Jianxin Wang | 2018 | Tsinghua Science and Technology2018，23，6： | 1 |
| 14 | Aggregate nearest neighbor queries in uncertain graphs显示文摘 | Zhang Liu Wang Chaokun Wang Jianmin | 2014 | World Wide Web2014，17，1： | 1 |
| 15 | Member promotion in social networks via skyline显示文摘 | Zhuo Peng Chaokun Wang | 2014 | World Wide Web2014，，4： | 1 |
| 16 | A workflow net similarity measure based on transition adjacency relations显示文摘 | Haiping Zha Jianmin Wang Lijie Wen Chaokun Wang Jiaguang Sun | 2010 | Computers in Industry2010，，5： | 1 |
| 17 | Nicotiana benthamiana XYLEM CYSTEINE PROTEASE genes facilitate tracheary element formation in interfamily grafting显示文摘Grafting is a plant propagation technique widely used in agriculture.A recent discovery of the capability of interfamily grafting in Nicotiana has expanded the potential combinations of grafting.In this study,we showed that xylem connection is essential for the achievement of interfamily grafting and investigated the molecular basis of xylem formation at the graft junction.Transcriptome and gene network analyses revealed gene modules for tracheary element(TE)formation during grafting that include genes associated with xylem cell differentiation and immune response.The reliability of the drawn network was validated by examining the role of the Nicotiana benthamiana XYLEM CYSTEINE PROTEASE(NbXCP)genes in TE formation during interfamily grafting.Promoter activities of NbXCP1 and NbXCP2 genes were found in differentiating TE cells in the stem and callus tissues at the graft junction.Analysis of a Nbxcp1;Nbxcp2 loss-of-function mutant indicated that NbXCPs control the timing of de novo TE formation at the graft junction.Moreover,grafts of the NbXCP1 overexpressor increased the scion growth rate as well as the fruit size.Thus,we identified gene modules for TE formation at the graft boundary and demonstrated potential ways to enhance Nicotiana interfamily grafting. | Chaokun Huang Ken-ichi Kurotani Ryo Tabata Nobutaka Mitsuda Ryohei Sugita Keitaro Tanoi Michitaka Notaguchi | 2023 | Horticulture Research2023，10，6： | 0 |
| 18 | Propagation History Ranking in Social Networks:A Causality-Based Approach显示文摘Information diffusion is one of the most important issues in social network analysis.Unlike most existing works,which either rely on network topology or node profiles,this study focuses on the diffusion itself,i.e.,the recorded propagation histories.These histories are the evidence of diffusion and can be used to explain to users what happened in their networks.However,these histories can quickly grow in size and complexity,limiting their capacity to be intuitively understood.To reduce this information overload,in this paper we present the problem of propagation history ranking.The goal is to rank participant edges/nodes by their contribution to the diffusion.We first discuss and adapt a causal measure,Difference of Causal Effects(DCE),as the ranking criterion.Then,to avoid the complex calculation of DCE,we propose two integrated ranking strategies by adopting two indicators.One is responsibility,which captures the necessity aspect of causal effects.We further give an approximate algorithm,which could guarantee a feasible solution,for this indicator.The other is capability,which captures the sufficiency aspect of causal effects.Finally,promising experimental results are presented to verify the feasibility of the proposed ranking strategies. | Zheng Wang Chaokun Wang Xiaojun Ye Jisheng Pei Bin Li | 2020 | Tsinghua Science and Technology2020，25，2： | 0 |
| 19 | Relationship Between Compression Strength and Its Microstructure of 5 Axial-Braided Composite显示文摘Compression performance of 5-axial braided composites is observed through compression tests.A mixed model of micro-buckling shear with braided tows web is set up to predict compression stress of braided composite through analyzing three broken modes.Using this mixed model,data from tests indicated that the main parameters effecting the compression properties of braided composite are fiber volume fraction,directional angle,axial-tow volume fraction and diameter of tow.Contributing rate of tows is proposed to describe the compression properties of fibre composites.Optimization geometrical structure of braids can optimize composite properties. | Yang Chaokun Zhu Jianxun Jiang Yun | 2007 | 航空制造技术2007，50，z1： | 0 |
| 20 | Atom Recombination of Difluorocarbene Enables 3-Fluorinated Oxindoles from 2-Aminoarylketones显示文摘Contrary to the traditional implementation as a difluoromethyl group and recently disclosed role of C1 synthons in synthetic organic chemistry,difluorocarbene(:CF_(2))is reported herein to proceed in unprecedented atom recombination as both a C1 synthon and F1 reagent simultaneously to render valuable 3-fluorinated oxindoles from 2-aminoarylketones.The reaction does not require catalyst and features a broad range of substrates with good functional group compatibility and ease of execution.This transformation could be employed to the quick-constructions of certain bioactive molecule derivatives.The mechanistic experiments and density functional theory(DFT)calculations indicate that this atom recombination reaction of:CF_(2) for the synthesis of 3-fluorinated oxindoles may involve a rearrangement process of epoxide intermediates. | Guan Zhang Qianqian Shi Mengyuan Hou Kai Yang Shihui Wang Shuai Wang Wangyang Li Chaokun Li Jian Qiu Hetao Xu Lu Zhou Cece Wang Shi-Jun Li Yu Lan Qiuling Song | 2022 | CCS Chemistry2022，4，5： | 0 |
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