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| 1 | miR-181b functions as an oncomiR in colorectal cancer by targeting PDCDZ显示文摘 | Yanqing Liu Uzair-ur-Rehman Yu Guo Hongwei Liang Rongjie Cheng Fei Yang Yeting Hong Chihao Zhao Minghui Liu Mengchao Yu Xinyan Zhou Kai Yin Jiangning Chen Junfeng Zhang Chen-Yu Zhang Feng Zhi Xi Chen | 2016 | Protein & Cell2016，7，10： | 14 |
| 2 | PGC-1α induces apoptosis in human epithelial ovarian cancer cells through a PPARy-dependent pathway显示文摘Peroxisome 激活 proliferator 的受体鲸鱼群妈(PPAR γ) coactivator-1 高山哈(PGC-1 α) coactivates 多重抄写因素并且调整几个代谢过程。Thecurrent 学习在人的上皮的卵巢的癌症房间在 apoptosis 的正式就职调查了 PGC-1 α的角色。在人的卵巢和人的卵巢的上皮的肿瘤之间的 PGC-1 α信使 rna 水平被量的 RT-PCR 检验。更少的 PGC-1 α表示与正常卵巢相比在恶意的肿瘤的表面上皮被发现。在人的上皮的卵巢的癌症房间线 Ho-8910 的 PGC-1 α的 Overexpression 通过 Bcl-2 和 Bax 表示的协调规定导致了房间 apoptosis。Microarray 分析证实 PGC-1 α戏剧性地在 Ho-8910 房间影响了 apoptosis 相关的基因。 Mitochondrial 功能的试金证明 apoptosis 的正式就职通过由细胞色素 c.Furthermore 的版本的终端阶段,导致的 apoptosis 部分是,然而并非完全,由 PPAR γa ntagonist ( GW9662 )堵住了的 PGC-1 α-,并且由 siRNA 的 PPAR γ 表示的抑制也在 Ho-8910 房间禁止了 PGC-1 α- inducedapoptosis 。这些数据建议 PGC-1 α通过 aPPAR γ - 依赖者小径施加了它的效果。我们的调查结果显示 PGC-1 α涉及 apoptotic signaltransduction 小径, PGC-1 α的 down 规定可以是在支持上皮的卵巢的癌症生长和前进的一个关键点。 | Yan Zhang Yi Ba Chang Liu Guoxun Sun Li Ding Songyuan Gao Jihui Hao Zhentao Yu Junfeng Zhang Ke Zen Zhongsheng Tong Yang Xiang Chen-Yu Zhang | 2007 | Cell Research2007，17，4： | 14 |
| 3 | Dynamic modelling and analysis of space webs显示文摘Future space missions demand operations on large flexible structures,for example,space webs,the lightweight cable nets deployable in space,which can serve as platforms for very large structures or be used to capture orbital objects.The interest in research on space webs is likely to increase in the future with the development of promising applications such as Furoshiki sat-ellite of JAXA,Robotic Geostationary Orbit Restorer (ROGER) of ESA and Grapple,Retrieve And Secure Payload (GRASP) of NASA.Unlike high-tensioned nets in civil engineering,space webs may be low-tensioned or tensionless,and extremely flexible,owing to the microgravity in the orbit and the lack of support components,which may cause computational difficulties.Mathematical models are necessary in the analysis of space webs,especially in the conceptual design and evaluation for prototypes.A full three-dimensional finite element (FE) model was developed in this work.Trivial truss elements were adopted to reduce the computational complexity.Considering cable is a compression-free material and its tensile stiffness is also variable,we introduced the cable material constitutive relationship to work out an accurate and feasible model for prototype analysis and design.In the static analysis,the stress distribution and global deformation of the webs were discussed to get access to the knowledge of strength of webs with different types of meshes.In the dynamic analysis,special attention was paid to the impact problem.The max stress and global deformation were investigated.The simulation results indicate the interesting phenomenon which may be worth further research. | YU Yang BAOYIN HeXi LI JunFeng | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，4： | 11 |
| 4 | Evidences of rapid erosion driven by climate in the Yarlung Zangbo (Tsangpo) Great Canyon,the eastern Himalayan syntaxis显示文摘Climate and tectonism are both particularly intense in the Yarlung Zangbo (Tsangpo) Great Canyon in the eastern Himalayan syntaxis,which is characterized by the most rapid landscape evolution of anywhere in the world.Thus,the eastern Himalayan syntaxis is one of the best locations to study the interactions between climate and tectonics.This paper investigates the cooling ages of the Doxong La-Baibung profile using apatite fission track (AFT) dating on 11 bedrock samples at elevations ranging from 4210 to 710 m.There are topographic,climatic,metamorphic,and thermochronological gradients in the profile,providing good conditions to study interactions between climate and tectonics.AFT ages ranged from 4.6±0.6 Ma to 1.7±0.3 Ma,and the mean fission track lengths ranged from 11.0 to 12.4 μm.It was found that the cooling rates revealed by AFT ages increased with decreasing elevation.However,the tendency of the cooling rates revealed by the 40 Ar-39 Ar ages was different from that indicated by the AFT ages.Moreover,for most districts of the eastern Himalayan syntaxis,the compiled AFT age distribution correlates well with the annual average precipitation,indicating the coupling of the cooling and erosion rates of the near-surface rock and precipitation.The geothermal history modeling results indicate an obvious increase in the cooling and erosion rate between 1.0 and 0.5 Ma.This age is consistent with other research findings for this time,when the vapor channel of the Yarlung Zangbo Great Canyon began to take effect.These evidences suggest that climate,especially precipitation,has acting as a key factor influencing the rapid cooling and erosion in the Yarlung Zangbo Great Canyon since 1-0.5 Ma. | YU XiangJiang JI JianQing GONG JunFeng SUN DongXia QING JianChun WANG LiNing ZHONG DaLai ZHANG ZhiCheng | 2011 | Chinese Science Bulletin2011，56，11： | 11 |
| 5 | Bottom water temperature measurements in the South China Sea,eastern Indian Ocean and western Pacific Ocean显示文摘文章报道了一批新的海底底水温度(BWT)数据,其中南海(SCS)158个站位、东印度洋(EIO)30个站位及西太平洋(WPO)37个站位。基于这批新的BWT数据,获得南海和西太平洋海域底水温度与水深经验关系,可为地球物理和物理海洋提供准确、可靠的海底温度边界。这将有助于海底油气资源调查与评估。同时,这批实测数据表明:1)水深超过3500m的海域,其底水温度在南海约为2.47℃,比东印度洋(~1.34℃)和西太平洋(~1.60℃)稍微偏高。这与大洋传送带模式所预测的情况比较吻合。该模式认为:低温高盐的海水,从北大西洋格陵兰岛和冰岛附近海域下沉到深层,然后向南流动,再与南极洲周围海域的低温高盐海水一同向北进入印度洋和太平洋。而南海是一个相对比较封闭的热带边缘海,其内部海水与印度洋和菲律宾海交换有限,导致海水温度整体高于印度洋和太平洋。2)台西南盆地水深在2700~3000m的部分站位,其底水温高达约3.00℃,明显高于其周边同水深海域底水温度(平均值约为2.33℃)。这可能是台西南盆地海底水热活动导致的结果。3)在东印度洋和西太平洋水深超过4800m海域,底水温度随着水压增大稍有升高,其升高率分别为10.6mK·MPa^(-1)和12.0mK·MPa^(-1)。这与理论估算的深层底水绝热压力温度梯度范围较为吻合。这也意味着东印度洋和西太平洋深层底水,主要由绝热自压作用导致其温度随着深度的增大而升高。 | YANG Xiaoqiu SHI Xiaobin ZHAO Junfeng YU Chuanhai GAO Hongfang CHEN Aihua LU Yuanzheng CEN Xianrong LIN Weiren ZENG Xin XU Hehua REN Ziqiang ZHOU Shengqi XU Ziying SUN Jinlong KAMIYA Nana LIN Jian | 2018 | 热带海洋学报2018，37，5： | 8 |
| 6 | Oncogenic miR-19a and miR-19b co-regulate tumor suppressor MTUS1 to promote cell proliferation and migration in lung cancer显示文摘MTUS1 (联系微导管的肿瘤 suppressor 1 ) 被识别了那能在许多恶意的肿瘤作为肿瘤 suppressor 基因工作。然而,位于 MTUS1 的规定下面的功能和机制是不清楚的。在现在的学习,我们报导 miR-19a 和 miR-19b (miR-19a/b ) 由指向 MTUS1 支持肺癌症房间的增长和移植。首先, MTUS1 被证明在肺癌症作为肿瘤 suppressor 工作并且被连接到房间增长和移植提升。第二,在 miR-19a/b 表示之间的反的关联和 MTUS1 mRNA/protein 表示在人的肺癌症纸巾被注意。第三, MTUS1 被生物信息学分析作为 miR-19a/b 的一个直接目标估价。第四,由在肺癌症房间的 miR-19a/b 的直接 MTUS1 规定被房间 transfection 试验性地肯定试金和酶记者试金。最后, miR-19a/b 被显示合作地镇压 MTUS1 表示并且 synergistically 调整 MTUS1 表示支持肺癌症房间增长和移植。在结论,我们的调查结果关于 miR-19a/b 的角色提供了第一线索,它看起来由 downregulating MTUS1 在肺癌症作为 oncomirs 工作。 | Yuanyuan Gu Shuoxin Liu Xiaodan Zhang Guimin Chen Hongwei Liang Mengchao Yu Zhicong Liao Yong Zhou Chen-Yu Zhang Tao Wang Chen Wang Junfeng Zhang Xi Chen | 2017 | Protein & Cell2017，8，6： | 6 |
| 7 | Metal chalcogenide complex-mediated fabrication of Cu_2S film as counter electrode in quantum dot sensitized solar cells显示文摘Cu2S film onto FTO glass substrate was obtained to function as counter electrode for polysulfide redox reactions in CdS/CdSe co-sensitized solar cells by sintering after spraying a metal chalcogenide complex, N4H9Cu7S4 solution. Relative to Pt counter electrode, the Cu2S counter electrode provides greater electrocatalytic activity and lower charge transfer resistance. The prepared Cu2S counter electrode represented nanoflower-like porous film which was composed of Cu2S nanosheets on FTO and had a higher surface area and lower sheet resistance than that of sulfided brass Cu2S counter electrode. An energy conversion efficiency of 3.62% was achieved using the metal chalcogenide complex-mediated fabricated Cu2S counter electrode for CdS/CdSe co-sensitized solar cells under 1 sun, AM 1.5 illumination. | YU XueChao ZHU Jun LIU Feng WEI JunFeng HU LinHua DAI SongYuan | 2013 | Science China Chemistry2013，56，7： | 6 |
| 8 | Bio-manufacturing technology based on diatom micro- and nanostructure显示文摘Diatom frustules,considered as novel bio-functional materials,display a diversity of patterns and unique micro-and nanostructures which may be useful in many areas of application.Existing devices directly use the original structure of the biosilica frustules,limiting their function and structural scale.Current research into the shapes,materials and structural properties of frustules are considered;a series of frustule processing methods including structure processing,material modification,bonding and assembly techniques are reviewed and discussed.The aim is to improve the function of diatom frustules allowing them to meet the design requirements of different types of micro devices.In addition,the importance of the comprehensive use of diatom processing methods in device research is discussed using biosensors and solar cells as examples,and the potential of bio-manufacturing technology based on diatom frustules is examined. | ZHANG DeYuan WANG Yu CAI Jun PAN JunFeng JIANG XingGang JIANG YongGang | 2012 | Chinese Science Bulletin2012，57，30： | 4 |
| 9 | Synthesis, DNA-binding and photocleavage studies of ruthenium(Ⅱ) complexes [Ru(btz)_3]^(2+) and [Ru(btz)(dppz)_2]^(2+)显示文摘Two new ruthenium(Ⅱ) complexes, [Ru(btz)3](ClO4)2 (1) and [Ru(btz)(dppz)2](ClO4)2 (2) (btz = 4,4′-bithi-azole, dppz = dipyrido[3,2-a:2′,3′-c]phenazine), have been synthesized and characterized by elemental analysis, 1H NMR, ES-MS and X-ray crystallography. The DNA binding behaviors of two complexes have been studied by spectroscopic and viscosity measurements. The results suggest that complex 1 binds to CT-DNA via an electrostatic mode, while complex 2 via an intercalative mode. Under irradiation at 365 nm, both complexes were found to promote the cleavage of plasmid pBR 322 DNA from supercoiled form Ⅰ to nicked form Ⅱ. The mechanism studies reveal that singlet oxygen 1O2 and hydroxyl radical (OH-) play a significant role in the photocleavage process. | YU HuiJuan, HUANG ShuMei, KOU JunFeng, LI LvYing, JIA HaiNa, CHAO Hui & JI LiangNian MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China | 2009 | Science China Chemistry2009，52，9： | 4 |
| 10 | Post-fledging dispersal and habitat use of a reintroduced population of the Crested Ibis (Nipponia nippon)显示文摘Background: Knowledge of dispersal movement of birds and their habitat preference during the post-fledging period is fundamental to the understanding of their ecological and evolutionary processes. The Crested Ibis is now being reintroduced to protected sites within its historical range, with the goal of establishing a self-sustaining population that may eventually qualify the species for delisting.Methods: We carried out an ecological study of post-fledging dispersal and habitat use of a reintroduced population of the Crested Ibis(Nipponia nippon) from 2008 to 2012 in Ningshan County, China, by using banding and radio-telemetry methods.Results: In about two weeks(an average of 14.3 days) after fledging, the activities of the fledglings were concentrated in a range of about 100 m around their natal sites, such as the oak-pine forest patches at the edge of open habitats.During this period, fledglings were still partially dependent upon parental care and fed typically on a daily basis.Siblings increasingly became independent by mid-August and then gradually moved away from their natal sites to post-fledging dispersal locations. During the period of the post-fledging dispersal process, most juveniles moving southwest were concentrated at the mean direction(μ = 254.6°, ? = 70.5°) with a mean dispersal distance of 5.1 km.It took an average of 56.4 days to disperse from the natal territory to the first wintering area. Also, forging habitats for juvenile ibis varied with time and local conditions. For example, paddy fields were used most frequently among all habitat types, while shallow rivers just from August to October. Masson pine(Pinus massoniana) was often regarded as the roosting tree species preferred by the Crested Ibis, with the highest utilization rate among all the roosting habitat types. The juveniles of the wild population dispersed four times as far as that of the reintroduced population, but the overall pattern of post-fledging dispersal is similar for the reintroduced and wild populations.Conclusions: Our results are very useful for us to predict the distance and direction of dispersal under various landscape conditions in other released sites. The project is a good example for reintroducing endangered species to their former ranges, and will be valuable for the protection of reintroduced populations of this critically and other endangered species. | Zhiping Huo Junfeng Guo Xia Li Xiaoping Yu | 2014 | Chinese Birds2014，，1： | 4 |
| 11 | Direct interaction between CD155 and CD96 promotes immunosuppression in lung adenocarcinoma显示文摘Despite the advance in targeted therapy,lung adenocarcinoma(LUAD)remains one of the leading causes of death in patients with cancer.CD155,a member of poliovirus receptor–related(PRR)family,has been identified as the ligand of the Ig-like receptors tactile(CD96)and DNAM-1(CD226)on T cells.The interaction of CD155 with CD96 transmits an inhibitory signal and suppresses immune response.The interaction of CD155 with CD226 enhances the immune response.1,2,3 CD155 expression has been shown to be elevated in many types of cancers4,5 and is involved with immune suppression in melanoma.6 However,how CD155/CD96 is involved in immune response in the tumor microenvironment of LUAD remains unknown. | Hui Zhang Qianwen Liu Yiyan Lei Jianwen Zhou Wenting Jiang Yongmei Cui Qiong He Junfeng Zhu Zheng Zhu Yu Sun Zunfu Ke | 2021 | Cellular & Molecular Immunology2021，18，6： | 3 |
| 12 | Sm-doped g-C_(3)N_(4)/Ti_(3)C_(2) MXene heterojunction for visible-light photocatalytic degradation of ciprofloxacin显示文摘A heterojunction of Sm-doped g-C_(3)N_(4)/Ti_(3)C_(2) MXene(SCN/MX)was constructed via prepolymerization and solid mixture-calcination method.The modified g-C_(3)N_(4) presented a hollow porous seaweed-like shape which can increase its specific area and active sites.In SCN/MX composite,the optical properties,no matter optical absorption ability or separation performance of photo-induced electrons and holes,were enhanced.Among them,Sm-doping may play an important role on transferring the photogenerated electrons to suppress their recombination,and Ti_(3)C_(2) MXene would broaden light absorption and further improve the carrier migration efficiency.The SCN/MX presented higher photocatalytic degradation efficiency(>99%)of cipro floxacin under visible light irradiation.The quenching experiments and electron spin-resonance spectroscopy confirmed that the dominated active materials were superoxide radical and holes.The degradation mechanisms of ciprofloxacin(CIP)over the SCN/MX were attacking of the active materials on the piperazine ring and quinolone ring,and the final products were CO_(2),H_(2)O and F^(-). | Mingchuan Yu Huanjing Liang Ruonan Zhan Lei Xu Junfeng Niu | 2021 | Chinese Chemical Letters2021，32，7： | 3 |
| 13 | In tegrative iTRAQ-based proteomic and transcriptomic analysis reveals the accumulation patter ns of key metabolites associated with oil quality during seed ripening of Camellia oleifera显示文摘Camellia oleifera(C.oleifera)is one of the four major woody oil-bearing crops in the world and has relatively high ecological,economic,and medicinal value.Its seeds undergo a series of complex physiological and biochemical changes during ripening,which is mainly manifested as the accumulation and transformation of certain metabolites closely related to oil quality,especially flavonoids and fatty acids.To obtain new insights into the underlying molecular mechanisms,a parallel analysis of the transcriptome and proteome profiles of C.oleifera seeds at different maturity levels was conducted using RNA sequencing(RNA-seq)and isobaric tags for relative and absolute quantification(iTRAQ)complemented with gas chromatography-mass spectrometry(GC-MS)data.A total of 16,530 transcripts and 1228 proteins were recognized with significant differential abundances in pairwise comparisons of samples at various developmental stages.Among these,317 were coexpressed with a poor correlation,and most were involved in metabolic processes,including fatty acid metabolism,a-linolenic acid metabolism,and glutathione metabolism.In addition,the content of total flavonoids decreased gradually with seed maturity,and the levels of fatty acids generally peaked at the fat accumulation stage;these results basically agreed with the regulation patterns of genes or proteins in the corresponding pathways.The expression levels of proteins annotated as upstream candidates of phenylalanine ammonia-lyase(PAL)and chalcone synthase(CHS)as well as their cognate transcripts were positively correlated with the variation in the flavonoid content,while shikimate O-hydroxycinnamoyltransferase(HCT)-(encoding genes had the opposite pattern.The increase in the abundance of proteins and mRNAs corresponding to alcohol dehydrogenase(ADH)was associated with a reduction in linoleic acid synthesis.Using weighted gene coexpression network analysis(WGCNA),we further identi fied six unique modules related to flavonoid,oil,and fatty acid anabolism that contained hub genes or proteins similar to transcription factors(TFs),such as MADS intervening keratin-like and C-terminal(MIKC_MAD s),type-B authentic response regulator(ARR-B),and basic helix-loop-helix(bH〔H).Finally,based on the known metabolic pathways and WGCNA combined with the correlation analysis,fi ve coexpressed transcripts and proteins composed of cinnamyl-alcohol dehyd rogenases(CADs),caffeicacid 3-O-methyltransferase(COMT),fl avonol synthase(FLS),and 4-coumarate:CoA ligaas(4CL)were screened out.With this exploratory multiomics dataset,our results presented a dynamic picture regarding the maturation process of C.oleifera seeds on Hainan Island,not only revealing the temporal specific expression of key candidate genes and proteins but also providing a scientific basis for the genetic improvement of this tree species. | Zhouchen Ye Jing Yu Wuping Yan Junfeng Zhang Dongmei Yang Guanglong Yao Zijin Liu Yougen Wu Xilin Hou | 2021 | Horticulture Research2021，8，1： | 3 |
| 14 | Generalized flyby trajectories around elongated minor celestial bodies as a rotating mass dipole显示文摘The aim of this paper is to understand the common characteristics of the generalized flyby trajectory around natural elongated bodies. Such flyby trajectories provide a short-term mechanism to clear away vicinal objects or temporally capture ejecta into circling orbits. The gravitational potential of elongated bodies is described by a unified approximate model, i.e., the rotating mass dipole which is two point masses connected with a constant massless rod The energy power is used to illustrate the flyby effect in terms of the instantaneous orbital energy. The essential of the single flyby trajectory is studied analytically, and the relationship between the flyby trajectory and its Jacobi integral is also illustrated. Sample trajectories are given to show the variational trend of the energy increment with respect to differen orbital periapsides. The distribution of natural ejecting orbits is presented by varying the parameters of the approximate model. | Xiangyuan Zeng Baodong Fang Junfeng Li Yang Yu | 2016 | Acta Mechanica Sinica2016，32，3： | 3 |
| 15 | Role of Eclipta prostrata extract in improving spatial learning and memory deficits in D-galactose-induced aging in rats显示文摘OBJECTIVE: To investigate the role of Eclipta prostrata (E. prostrata) extract in improving spatial learning and memory deficits in D-galactose-induced aging in rats. METHODS: Rats were divided into five groups, with 10 animals in each group. Aging rats were produced by treatment with 100 mg·kg-1·d-1 of D-galactose for 6 weeks. Rats in the E. prostrata treatment groups received an aqueous extract of E. prostrata orally at a concentration of 50, 100, or 200 mg·kg-1· d-1 for 3 weeks. Animals in both the normal and model groups were treated with similar volumes of saline. Spatial memory performance was measured using the Morris water maze. The mRNA levels and enzyme activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and glutathione reductase (GR) were analyzed using real- time quantitative PCR and spectrophotometry,respectively. The levels of induced nitric oxide synthase (iNOS), nitric oxide (NO), dopamine (DA), norepinephrine (NE), and serotonin (5-HT) were determined using enzyme-linked immunosorbent assay and spectrophotometry. RESULTS: Compared with the normal group, rats in the D-galactose-treated model group exhibited significant memory loss. There was severe damage to the hippocampal CA1 area, and expression levels of SOD, CAT, GPx, and GR were significantly decreased in the model group compared with the normal group. In the model group, levels of iNOS and NO were significantly increased compared with the normal group. However, treatment with E. prostrata extract reversed the conditions caused by D-galactose- induced aging, especially in the groups with higher treatment concentrations. Compared with the normal group, the levels of DA, NE, and 5-HT were significantly lower in the D-galactose-treated model group. In the E. prostrata extract-treated groups, however, there was a dose-dependent upregulation of DA, NE, and 5-HT expression. CONCLUSION: Our results suggest that administration of E. prostrata extract can result in an improvement in the learning and memory impairments that are induced by D-galactose treatment in rats. This improvement may be the result of enhanced antioxidative ability, decreased iNOS and NO levels, and the induction of DA, NE, and 5-HT expression in the brain. | Xia Xichao Yu Ruixue Wang Xiaowei Wei Mengwei Yi Li Wang Aimei Ma Yuhong Zhang Junfeng Ji Zhaohui Li Yuan Wang Qiong | 2019 | Journal of Traditional Chinese Medicine2019，39，5： | 2 |
| 16 | Heterogeneous oxidation of carbonyl sulfide on mineral oxides显示文摘Heterogeneous oxidation of carbonyl sulfide (OCS) on mineral oxides including SiO2,Fe2O3,CaO,MgO,ZnO and TiO2,which are the main components of atmospheric particles,were investigated using in situ diffuse reflectance infrared Fourier transform spectroscopy (in situ DRIFTS),ion chromatography (IC),temperature-programmed desorption (TPD),X-ray diffraction (XRD) and Brunauer-Emmett-Teller (BET) methods. The main products and intermediates of the heterogeneous oxidation of OCS on these oxides were identified with in situ DRIFTS and IC. The reaction mechanism and kinetics were also discussed. It is found that the reaction mechanism on these mineral oxides is the same as that on Al2O3 for the same final products and the intermediates at room temperature. Namely,OCS can be catalytically oxidized to produce surface SO42- species and gaseous CO2 through the surface hydrogen thiocarbonate (HSCO2-) and HSO3- species. The activity series for heterogeneous oxidation of OCS follows: Al2O3 ≈ CaO > MgO > TiO2 ≈ ZnO > Fe2O3 > SiO2. The specific area,basic hydroxyl and surface basicity of these oxides have effect on the reactivity. This study suggests that heterogeneous reactions of OCS on mineral dust may be an unneglectable sink of OCS. | LIU YongChun LIU JunFeng HE Hong YU YunBo XUE Li | 2007 | Chinese Science Bulletin2007，52，15： | 2 |
| 17 | Genetic causes of oil-rich and oil-poor reservoirs: Implications from two Cenozoic basins in the eastern North China Craton显示文摘The Bohai Bay and Hehuai(southern North China) rift basins in the eastern part of the North China Craton are southnorth-adjacent. They have shown synchronous evolutionary processes, and possess generally identical superficial and shallow structural characteristics as well as similar basin areas. However, there is a large difference in the richness of oil resources between the two basins. The Bohai Bay Basin has extremely abundant oil reserves, while commercial oil reserves have not been found in the Hehuai Basin. The deep tectonic structures, magmatic activities, and modern and paleo-geothermal fields of the two basins are significantly different. Compared with the Hehuai Basin, the Bohai Bay Basin has a thinner crust and more complex structure with multiple low-velocity layers. It is also characterized by intense magmatic activity, high modern and paleogeothermal fields, frequent seismic activity, and active deep interactions, small effective elastic thickness of the isotropic lithosphere, and shorter balanced transformation wavelength of the lithosphere with a high likelihood of local compensation. The Hehuai Basin has a simple deep structure and homogeneous crustal composition, with a high likelihood of regional compensation. The characteristics of the deep structures mentioned above are generally similar to those of the southern part of the stable Ordos Basin, except for the smaller crust thickness. This indicates the presence of differences in Mesozoic destruction between the southern and northern zones in the eastern part of the North China Craton. The northern zone was subjected to significant destruction, while the southern zone was subjected to modifications, primarily in the form of local changes in the structures and/or properties of the crust or lithospheric mantle, with the overall structure and stability of the craton kept intact. The formation of high-quality source rock is primarily influenced by the abnormal flourishment of organisms in water bodies during the syndepositional period, and is also strongly associated with the high geothermal setting of basins and nutrients from hydrothermal solutions and volcanoes. In other words, it is mainly controlled by deep processes and deep-major fault activity. The differences in the deep structures and modern and paleo geothermal fields of the two basins correspond to the difference in richness of oil resources, suggesting that there is an important internal or causal relationship between the two aspects. This viewpoint coincides with the conditions and environments required for the development of high-quality source rock in hydrocarbon-rich basins(sags)in China and other countries, and is evidenced by the modern lake basin of the East African Rift. A new hydrocarbon generation model is proposed in this work: petroleum is a comprehensive product of the integration of bioenergy, thermal energy, and other related energies(such as chemical and kinetic energy) and their interactions; the degree of richness of petroleum is generally controlled by the regional tectonic structure, thermal environment, and deep processes; nonmarine basins or depressions with abundant resources are closely related to active deep processes, intense exchange of material between the deep and shallow layers, participation of external hydrocarbons, and energy integration and conversion. | Chiyang LIU Lei HUANG Dongdong ZHANG Junfeng ZHAO Yu DENG Pei GUO Yijian HUANG &Jianqiang WANG | 2018 | Science China Earth Sciences2018，61，12： | 2 |
| 18 | In situ real-time study buckling behavior of boron nitride nanotubes with axial compression by TEM显示文摘Boron nitride nanotubes(BNNTs)were treated as brittle materials and could be used to enhance the composite mechanical properties.Many approaches were used to verify the theoretical prediction experimentally,but how to in situ real-time characterize nanomechanical properties of BNNTs was still interested to the researchers.An in situ transmission electron microscopy(TEM)equipped with a force transducer holder had been used to study the structure evolution behavior of BNNTs with axial compression.Real-time video and the force transducer had been used synchronously to record the whole force loading process where the mechanical deformation of BNNT began,buckled and ended with fracture.An in dividual ultrathin BNNT was employed to con duct the loading test.The results showed that the elastic deformation happened on the BNNT.Young's modulus?1.05-1.37 Tpa and elasticity coefficient?198.7-255.9 N/m of BNNT were calculated by Euler formula and Hooker's law,respectively. | Guoxin Chen Huanming Lu Junfeng Cui Haitao Yu Bo Wang Yan Liu He Li Nan Jiang | 2019 | Chinese Chemical Letters2019，30，7： | 2 |
| 19 | Characteristics of bleaching of sandstone in northeast of Ordos Basin and its relationship with natural gas leakage显示文摘Bleaching of sandstone has significant applications to tracing hydrocarbon pathways and evaluating the scale of natural gas seepage. Bleaching of sandstones in the northeast of Ordos Basin is mainly distributed in the Mesozoic Yan'an Formation. Studying on petrology, major elements, REEs and trace elements of bleached sandstones and comparing with adjacent sandstones, combining with geologic-geochemical evidences of gas seepage in the northeast of the basin, the bleached sandstones are formed in the acid environment and reducing fluids. Characteristics of petrology show that the contents of kaolinite are high and the color of margin of ferric oxide minerals is lighter than that of the center. Major elements of sandstone samples show high contents of Al2O3 and low ratio of Fe3+/Fe2+. The TFe2O3 content of the bleached sandstone is lower than that of red rock. REE data show that bleached sandstones have low ∑REE contents and Eu-depleted and slightly Ce-enriched. Trace elements show that the bleached sandstones enrich in Co, deplete in Sr, and slightly enrich in Zr and Hf which are close to the values for the green alteration sandstones, and slightly lower than ore-bearing sandstones. Geochemical characteristics of oil-bearing sandstone in the northern basin suggest that the oil-shows are formed by matured Carboniferous-Permian coal bed methane escaping to the surface, and natural gas in field could migrate to the north margin of the basin. The δ13C (PDB) andδ18O(PDB) values of calcite cement in the study area range from -11.729‰ to -10.210‰ and -14.104‰ to -12.481‰, respectively. Theδ13C (PDB) values less than -10‰ imply the carbon sources part from organic carbon. Comprehensive study suggests that the gas leakage has occurred in the northeastern basin, which is responsible for bleaching of the sandstone on top of the Yan'an Formation. | MA YanPing LIU ChiYang ZHAO JunFeng HUANG Lei YU Lin WANG JianQiang | 2007 | Science China Earth Sciences2007，50，z2： | 2 |
| 20 | Enhanced tribological properties of aligned graphene-epoxy composites显示文摘The random distribution of graphene in epoxy matrix hinders the further applications of grapheneepoxy composites in the field of tribology.Hence,in order to fully utilize the anisotropic properties of graphene,highly aligned graphene-epoxy composites(AGEC)with horizontally oriented structure have been fabricated via an improved vacuum filtration freeze-drying method.The frictional tests results indicated that the wear rate of AGEC slowly increased from 5.19x10^(-6)mm^(3)/(N-m)to 2.87x10^(-5)mm^(3)/(N-m)with the increasing of the normal load from 2 to 10 N,whereas the friction coefficient(COF)remained a constant of 0.109.Compared to the neat epoxy and random graphene-epoxy composites(RGEC),the COF of AGEC was reduced by 87.5%and 71.2%,and the reduction of wear rate was 86.6%and 85.4%at most,respectively.Scanning electron microscope(SEM)observations illustrated that a compact graphene self-lubricant film was formed on the worn surface of AGEC,which enables AGEC to possess excellent tribological performance.Finally,in light of the excellent tribological properties of AGEC,this study highlights a pathway to expand the tribological applications of graphene-epoxy composites. | Yuefeng DU Zhenyu ZHANG Dong WANG Lezhen ZHANG Junfeng CUI Yapeng CHEN Mingliang WU Ruiyang KANG Yunxiang LU Jinhong YU Nan JIANG | 2022 | Friction2022，10，6： | 2 |
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