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| 1 | New eolian red clay sequence on the western Chinese Loess Plateau linked to onset of Asian desertification about 25 Ma ago显示文摘The expansion of inland Asia deserts has considerably influenced the environmental, social and economic activities in Asia. Aridification of inland Asia, especially timing of the initiation of Asian desertification, is a contentious topic in paleoclimatology. Late Cenozoic eolian loess-red clay sequences on the Chinese Loess Plateau, which possess abundant paleoclimatic and paleo-environmental information, can be regarded as an indicator of inland Asia desertification. Here we present a detailed magnetostratigraphic investigation of a new red clay sequence about 654 m in Zhuanglang located at the western Chinese Loess Plateau. Sedimentological, geochemical, mineralogical, and quartz morphological lines of evidence show that the red clay is of eolian origin. Magnetostratigraphic correlations indicate that this core sequence spans from 25.6 to 4.8 Ma, and typical eolian red clay appears as early as 25 Ma. This extends the lower limit of the red clay on the Chinese Loess Plateau from the previously thought early Miocene back into the late Oligocene. This new red clay record further implies that the inland Asia desertification was initiated at least by the late Oligocene. This sequence provides a unique high-resolution geological record for understanding the inland Asia desertification process since the late Oligocene. | QIANG XiaoKe AN ZhiSheng SONG YouGui CHANG Hong SUN YouBin LIU WeiGuo AO Hong DONG JiBao FU ChaoFeng WU Feng LU FengYan CAI YanJun ZHOU WeiJian CAO JunJi XU XinWen AI Li | 2011 | Science China Earth Sciences2011,54,1: | 73 |
| 2 | Some open questions in the theory of generalized permutable subgroups显示文摘A subgroup H of a group G is said to be weakly s-supplemented in G if H has a supplement T in G such that H ∩ T HsG, where HsG is the largest s-permutable subgroup of G contained in H. This paper constructs an example to show that the open questions 6.3 and 6.4 in J Algebra, 315: 192–209 (2007) have negative solutions, and shows that in many cases Question 6.4 is positive. A series of known results are unified and generalized. | GUO WenBin XIE FengYan LI BaoJun | 2009 | Science China Mathematics2009,52,10: | 11 |
| 3 | Preparation of Unsupported Molybdenum Phosphide Hydrofining Catalysts显示文摘 | LI Fengyan, ZHAO Tianbo, SUN Guida, LI Cuiqing (Department of Applied Chemistry, Beijing Institute of Petrochemical Technology, Beijing 102617, China) | 2003 | 催化学报2003,24,2: | 10 |
| 4 | 24 h continuous observation of sodium layer over Wuhan by lidar显示文摘Based on the dual-wavelength lidar we have developed, the 24 h continuous ob- servation has been realized in its sodium channel by using Faraday atomic filter technology and other relevant technologies. This will facilitate the continuous ob- servation of the sodium layer and the relevant upper atmosphere over Wuhan. A result of about 50 h observation indicates that the daytime column density of so- dium layer over Wuhan is slightly increased compared to that during the nighttime, and the characteristics of the sporadic sodium layer occurring during the daytime are compared with that during the nighttime. | CHENG XueWu GONG ShunSheng LI FaQuan DAI Yang SONG Juan WANG JiaMin LI FengYan | 2007 | Science China(Physics,Mechanics & Astronomy)2007,50,3: | 8 |
| 5 | A case-control study about the association between vascular endothelial growth inhibitor gene polymorphisms and breast cancer risk in female patients in Northeast China显示文摘Objective: The inhibition of the neovascularization in tumors is a potential therapeutic target of cancer. Vascular endothelial growth inhibitor(VEGI) is a member of the TNF superfamily which has the ability to suppress the formation of new vessels in tumors. In order to study the association between VEGI gene polymorphisms and breast cancer risk, a case-control study was conducted in Chinese Han women in Northeast China.Methods: Our study involved 708 female breast cancer patients and 685 healthy volunteers. Four SNPs of VEGI gene were analyzed through the polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP) method. The association between VEGI gene polymorphisms and breast cancer risk was analyzed in our study. The relation between VEGI gene variants and clinical features of breast cancer including lymph node(LN) metastasis, estrogen receptor(ER), progestrogen receptor(PR), tumor protein 53(p53), human epidermal growth factor receptor 2(Her-2) and triple negative(ER-/PR-/Her-2-) status was analyzed as well.Results: We found that the CT genotype and T allele of rs6478106 were more frequent in patients than in controls. There was also a statistical difference in the distribution of C_(rs6478106)G_(rs4263839) haplotype between patients and controls. In addition, SNP rs6478106 and rs4979462 were related with the Her-2 status.Conclusions: Our results suggest that VEGI gene variants may be related to the breast cancer risk and the clinical features of breast cancer in Chinese Han women in Northeast China. | Shaoli Han Lei Liu Fengyan Xu Shuang Chen Weiguang Yuan Zhenkun Fu Dalin Li Dianjun Li | 2016 | Chinese Journal of Cancer Research2016,28,4: | 7 |
| 6 | miR-124 suppresses multiple steps of breast cancer metastasis by targeting a cohort of pro-metastatic genes in vitro显示文摘Metastasis is a multistep process involving modification of morphology to suit migration, reduction of tumor cell adhesion to the extracellular matrix, increase of cell mobility, tumor cell resistance to anoikis, and other steps. MicroRNAs are well-suited to regulate tumor metastasis due to their capacity to repress numerous target genes in a coordinated manner, thereby enabling their intervention at multiple steps of the invasion-metastasis cascade. In this study, we identified a microRNA exemplifying these attributes, miR-124, whose expression was reduced in aggressive MDA-MB-231 and SK-3rd breast cancer cells. Down-regulation of miR-124 expression in highly aggressive breast cancer cells contributed in part to DNA hypermethylation around the promoters of the three genes encoding miR-124. Ectopic expression of miR-124 in MDA-MB-231 cells suppressed metastasis-related traits including formation of spindle-like morphology, migratory capacity, adhesion to fibronectin, and anoikis. These findings indicate that miR-124 suppresses multiple steps of metastasis by diverse mechanisms in breast cancer cells and suggest a potential application of miR-124 in breast cancer treatment. | Xiao-Bin Lv Yu Jiao Yanwei Qing Haiyan Hu Xiuying Cui Tianxin Lin Erwei Song Fengyan Yu | 2011 | Chinese Journal of Cancer2011,30,12: | 6 |
| 7 | Single-shot compressed ultrafast photography: a review显示文摘Compressed ultrafast photography(CUP)is a burgeoning single-shot computational imaging technique that provides an imaging speed as high as 10 trillion frames per second and a sequence depth of up to a few hundred frames.This technique synergizes compressed sensing and the streak camera technique to capture nonrepeatable ultrafast transient events with a single shot.With recent unprecedented technical developments and extensions of this methodology,it has been widely used in ultrafast optical imaging and metrology,ultrafast electron diffraction and microscopy,and information security protection.We review the basic principles of CUP,its recent advances in data acquisition and image reconstruction,its fusions with other modalities,and its unique applications in multiple research fields. | Dalong Qi Shian Zhang Chengshuai Yang Yilin He Fengyan Cao Jiali Yao Pengpeng Ding Liang Gao Tianqing Jia Jinyang Liang Zhenrong Sun Lihong V.Wange | 2020 | Advanced Photonics2020,2,1: | 5 |
| 8 | Numerical study on residual current and its impact on mass transport in the Hangzhou Bay and the Changjiang Estuary I. A3-D joint model of the Hangzhou Bay and the Changjiang Estuary显示文摘A 3-D numerical model is set up in a large domain covering the Hangzhou Bay and the Changjiang Estuary based on the ECOM model in orthogonal curvilinear coordinates.The numerical schemes for baroclinic pressure gradient (BPG)terms and convective terms are improved in the paper according to the characteristics of velocity field and mass transport in the area.The model is validated by the simulations of residual current and salinity transport in the Hangzhou Bay and the Changjiang Estuary. | Zhu Shouxian 1,2 ,Shi Fengyan 1,Zhu Jianrong 1,Ding Pingxing 11 .StateKeyLaboratoryofEstuarineandCoastalResearch ,EastChinaNormalUniversity ,Shanghai 2 0 0 0 6 2 ,China 2.MeteorologyInstituteofthePLAScienceandEngineeringUniversity ,Nanjing 2 11 | 2001 | Acta Oceanologica Sinica2001,20,1: | 5 |
| 9 | Effects of three needling manipulations of the right-side Zusanli(ST 36) on brain using functional magnetic resonance imaging显示文摘OBJECTIVE: To investigate the effects on the brain using three needling manipulations(twirling, lifting-thrusting, and twirling plus lifting-thrusting)when the right-side Zusanli(ST 36) acupoint was stimulated with needles.METHODS: Seventeen healthy subjects accepted three needling manipulations stimulating the right Zusanli(ST 36) over separate days. Functional magnetic resonance imaging was used to detect changes in the brain during the manipulations, and then the needling sensations were recorded using the MGH acupuncture sensation scale(MASS) after each scan. f MRI data were processed using Statistical Parametric Mapping 8 to analyze the positiveand negative activation in the brain induced by different acupuncture manipulations.RESULTS: The individual needling sensations showed no statistically significant differences among the three manipulations. However, the MASS index showed that lifting-thrusting > twirling plus lifting-thrusting > twirling. Lifting-thrusting activated left premotor cortex, left postcentral,right middle frontal gyrus, left inferior frontal gyrus,right lingual gyrus, left insula, right putamen, bilateral cingulate gyrus and right cerebellum; and deactivated bilateral hippocampus and left caudate.Twirling activated bilateral orbital middle frontal gyrus, left opercular and triangular inferior frontal gyrus, and right middle occipital gyrus; and deactivated bilateral precuneus, right amygdala, left anterior cingulate gyrus, right inferior temporal gyrus,right middle frontal gyrus, right supplementary motor gyrus, and left postcentral. Twirling plus lifting-thrusting activated bilateral postcentral, left inferior occipital gyrus, left insula, left thalamus, left cingulate gyrus, and right putamen; and deactivated right superior frontal gyrus, right superior parietal gyrus, right temporal gyrus, right middle occipital gyrus, right insula, and left lingual gyrus. Pairwise comparisons of the three manipulations showed that signals induced by lifting-thrusting were the strongest, especially in the limbic system,followed by twirling plus lifting-thrusting; twirling alone was the weakest.CONCLUSION: Three methods of needling manipulations similarly activated areas associated with the somatosensory system, vision, cognition, and emotional regulation. This may have significant implications for acupuncture in clinical practice. | Lu Fengyan Gao Junhong Wang Yuanyuan Dai Qiufu Bao Yan Hong Yang Zhang Guolei Xin Juanjuan Zhao Yuxue Wu Shuyang Chen Yuanyuan Li Xiaojiao Fang Jiliang Yu Xiaochun | 2017 | Journal of Traditional Chinese Medicine2017,37,3: | 5 |
| 10 | Characteristics of the binding features of Nelin with F-actin and screening Nelin interactive proteins显示文摘The interaction of nelin, a cardiac-specific ex- pressed protein of human novel gene nelin, with F-actin was studied by both F-actin cosedimentation in vitro and colocal- ization assays. The results showed that nelin is a new F-actin binding protein and is colocolized with F-actin in cytoplasm of cells. Three new nelin binding proteins, filamin C subtype, titin N2B subtype and inter-alpha trypsin inhibitor heavy chain precursor (ITIH), were identified from human heart cDNA library using yeast two-hybrid screening. The binding activity of filamin C with nelin was confirmed by coim- munoprecipitation. Filamin C binds to nelin through its C-terminal region. It is indicated that nelin is a cytoskeleton associated protein and acts as a membrane-cytoskeleton as- sociated protein involved in the formation of focal adhesions. | WANGZhen MENGXianmin CAOHuiqing LIUDongqing FENGYan YOUXin WANGYin GUOLianjun QUShen | 2004 | Chinese Science Bulletin2004,49,23: | 5 |
| 11 | Synthesis of Waterborne Polyurethane Modified by Nano-SiO_2 Silicone and Properties of the WPU Coated RDX显示文摘A series of nano silica/silicone modified waterborne polyurethane(WPU) have been synthesized from polytetramethylene glycol and isophorone diisocyanate, dihydroxymethyl propionic acid and triethylamine, ethylenediamine, trimethylolpropane, nano-SiO2 and the silane coupling agent KH550. The effect of the dosage of nano-SiO2 on the WPU-Si membrane and the coated RDX(cyclotrimethylenetrinitramine) particles have been studied in terms of their surface properties, mechanical properties, and thermal stability. The results showed that with the increase of Si content, the stability of the emulsion reduced gradually. The material with more Si content displayed an increased thermodynamic stability, an increased high temperature resistance, an increased tensile strength and a decreased elongation at break. With the increase of Si content, the surface tension of the material decreased, the bibulous rate reduced, and the contact angle increased gradually, so that the surface tension of the polyurethane and RDX are close to each other which could improve the performance of coating. | Li Yang Zhao Tianbo Qu Xiaoling Ding Hongjing Li Fengyan | 2015 | China Petroleum Processing & Petrochemical Technology2015,17,2: | 4 |
| 12 | Physicochemical Properties and Catalytic Performance of a Novel Aluminosilicate Composite Zeolite for Hydrocarbon Cracking Reaction显示文摘A novel micro-micro/mesoporous aluminosilicate ZSM-5-Y/MCM-41 composite molecular sieve with a MCM-41 type structure was synthesized through a novel process of the self-assembly of CTAB surfactant micellae with silica-alumina source originated from alkaline treatment of ZSM-5 zeolite.The physical properties of the ZSM-5- Y/MCM-41 composite molecular sieve were characterized by XRD,Py-FTIR and N_2 adsorption-desorption techniques. Different kinds of molecular sieves including ZSM-5,Y zeolite,Al-MCM-41,ZSM-5/MCM-41 and ZSM-5-Y/MCM- 41 as cracking catalysts were investigated,using 1,3,5-triisopropylbenzene(1,3,5-TIPB) as the probe molecule.Catalytic tests showed that the ZSM-5-Y/MCM-41 composite molecular sieve exhibited higher catalytic activity compared with the microporous ZSM-5 zeolite,Y zeolite,mesoporous Al-MCM-41 molecular sieve and ZSM-5/MCM-41 composite molecular sieve under the same conditions.The remarkable catalytic activity was mainly attributed to the presence of the hierarchical pore structure and proper acidity in the ZSM-5-Y/MCM-41 composite catalyst.Meanwhile, a carbenium ion mechanism was put forward for the cracking of 1,3,5-TIPB. | Qi Jian Zhao Tianbo Xu Xin Li Fengyan Sun Guida | 2010 | China Petroleum Processing & Petrochemical Technology2010,12,1: | 4 |
| 13 | Ultra-high-Q resonances in terahertz all-silicon metasurfaces based on bound states in the continuum显示文摘High-Q metasurfaces have important applications in high-sensitivity sensing,low-threshold lasers,and nonlinear optics due to the strong local electromagnetic field enhancements.Although ultra-high-Q resonances of bound states in the continuum(BIC)metasurfaces have been rapidly developed in the optical regime,it is still a challenging task in the terahertz band for long years because of absorption loss of dielectric materials,design,and fabrication of nanostructures,and the need for high-signal-to-noise ratio and high-resolution spectral measurements.Here,a polarization-insensitive quasi-BIC resonance with a high-Q factor of 1049 in a terahertz all-silicon metasurface is experimentally achieved,exceeding the current highest record by 3 times of magnitude.And by using this ultra-high-Q metasurface,a terahertz intensity modulation with very low optical pump power is demonstrated.The proposed all-silicon metasurface can pave the way for the research and development of high-Q terahertz metasurfaces. | PENGFEI WANG FENGYAN HE JIANJUN LIU FANGZHOU SHU BIN FANG TINGTING LANG XUFENG JING ZHI HONG | 2022 | Photonics Research2022,10,12: | 4 |
| 14 | A BFG model for calculation of tidal current and diffusion of pollutants in nearshore areas显示文摘ABFGmodelforcalculationoftidalcurrentanddiffusionofpollutantsinnearshoreareas¥ShiFengyan;andZheng;Lianyuan(StateKeyLaboratory... | Shi Fengyan and Zheng Lianyuan(State Key Laboratory of Estuarine and  ̄tal Research, Institute of Estuarine and Coastal Research, East China NOrmalUniversity, Shanghai 200062, China)(Department of Marine audiences, the University of georgia. Athens. GA | 1996 | Acta Oceanologica Sinica1996,15,3: | 3 |
| 15 | Expression of Cbl-interacting protein of 85 kDa in MPTP mouse model of Parkinson's disease and 1-methyl-4-phenyl-pyridinium ion-treated dopaminergic SH-SY5Y cells显示文摘85 kDa (CIN85 ) 的最新发现的交往 Cbl 蛋白质在大脑涉及许多细胞的过程,而是它的功能,在 neurodegenerative,疾病仍然保持不清楚。在这篇论文,我们用蛋白质印迹分析和免疫组织化学在成年老鼠大脑的不同区域调查了 CIN85 蛋白质的分发,并且发现 CIN85 无所不在地在老鼠大脑被表示。在条纹弦音器和 substantia nigra,二个区域最深深地在 Parkinson 的疾病影响了, CIN85 蛋白质的水平相对高。在 Parkinson 的疾病的 MPTP 鼠标模型,在条纹弦音器和 substantia nigra 的 CIN85 的表达式是复杂的。但是在 1-methyl-4-phenyl-pyridinium 对待离子的人的 dopaminergic SH-SY5Y 房间, CIN85 的表示戏剧性地增加了。由短发卡 RNA CIN85 击倒减少了 SH-SY5Y 房间死亡。因此, CIN85 可能在神经毒素挑战下面在 dopaminergic 房间线并且在老鼠大脑的 nigrostriatum 起不同作用。 | Minjuan Bian Mei Yu Shanzheng Yang Hui Gao Yalin Huang Chunguang Deng Yanqin Gao Fengyan Sun Fang Huang | 2008 | Acta Biochimica et Biophysica Sinica2008,40,6: | 3 |
| 16 | Chokeberry(Aronia melanocarpa)as a new functional food relationship with health:an overview显示文摘As a consumer product,black chokeberry(Aronia melanocarpa)is diffi cult to consume due to its pungent taste.It is mainly used in various food industries to produce a variety of juices,preserves,extracts,fruit teas and nutritional supplements.Traditionally,Potawatomi Native Americans used black chokeberry to treat colds,coughs and fever.It has been found to contain numerous active ingredients.Currently,there are many health and medical products that contain black chokeberry.The purpose of this review is to understand the nutritional benefi ts of black chokeberry and to explore its benefi cial effects on biological systems in vitro,thereby emphasizing its therapeutic prospects. | Yiwen Zhang Yingchun Zhao Xinglong Liu Xueyan Chen Chuanbo Ding Ling Dong Jinping Zhang Shuwen Sun Qiteng Ding Sadia Khatoom Zhiqiang Cheng Wencong Liu Liqian Shen Fengyan Xiao | 2021 | Journal of Future Foods2021,1,2: | 3 |
| 17 | Petroleum Origins and Accumulation Patterns in the Weixinan Sag in the Beibu Gulf Basin,Using Subsag B as an Example显示文摘Crude oil has been discovered in the Paleogene and Neogene units of the Weixinan Sag in the Beibu Gulf Basin.To determine the source and accumulation mode of this crude oil,12 crude oil samples and 27 source rock samples were collected and an extensive organic geochemical analysis was conducted on them.Based on the geological conditions and the analytical results,the types,origins and accumulation patterns of crude oil in the study area were elucidated.Except for a shallowly-buried and biodegraded crude oil deposit in Neogene rocks,the crude oil samples in the study area were normal.All of the crude oils were derived from lacustrine source rocks.According to biomarker compositions,the crude oils could be divided into two families,A and B,distinctions that were reinforced by differences in carbon isotope composition and spatial distribution.Oil-source correlation analysis based on biomarkers revealed that Family A oils were derived from the mature oil shale at the bottom of the second member of the Liushagang Formation,while the Family B oils formed in the mature shale of the Liushagang Formation.The Family A oils,generated by oil shale,mainly migrated laterally along sand bodies and were then redistributed in adjacent reservoirs above and below the oil shale layer,as well as in shallow layers at high structural positions,occupying a wide distribution range.The Family B oils were generated by other shale units before migrating vertically along faults to form reservoirs nearby,resulting in a narrow distribution range. | GAO Gang XU Xinde QU Tong GAN Jun DANG Wenlong ZHOU Xiaoxiao LIU Fengyan | 2020 | Acta Geologica Sinica(English Edition)2020,94,5: | 3 |
| 18 | Single-shot spectral-volumetric compressed ultrafast photography显示文摘In ultrafast optical imaging,it is critical to obtain the spatial structure,temporal evolution,and spectral composition of the object with snapshots in order to better observe and understand unrepeatable or irreversible dynamic scenes.However,so far,there are no ultrafast optical imaging techniques that can simultaneously capture the spatial–temporal–spectral five-dimensional(5D)information of dynamic scenes.To break the limitation of the existing techniques in imaging dimensions,we develop a spectral-volumetric compressed ultrafast photography(SV-CUP)technique.In our SV-CUP,the spatial resolutions in the x,y and z directions are,respectively,0.39,0.35,and 3 mm with an 8.8 mm×6.3 mm field of view,the temporal frame interval is 2 ps,and the spectral frame interval is 1.72 nm.To demonstrate the excellent performance of our SV-CUP in spatial–temporal–spectral 5D imaging,we successfully measure the spectrally resolved photoluminescent dynamics of a 3D mannequin coated with CdSe quantum dots.Our SV-CUP brings unprecedented detection capabilities to dynamic scenes,which has important application prospects in fundamental research and applied science. | Pengpeng Ding Yunhua Yao Dalong Qi Chengshuai Yang Fengyan Cao Yilin He Jiali Yao Chengzhi Jin Zhengqi Huang Li Deng Lianzhong Deng Tianqing Jia Jinyang Liang Zhenrong Sun Shian Zhang | 2021 | Advanced Photonics2021,3,4: | 3 |
| 19 | A three-dimensional diffusion equation of suspended sediment by waves and currents显示文摘Based on the law of mass conservation, a general three-dimensional diffusion equation of suspended sediment due to waves and currents, adaptable to estuarial and coastal areas, is derived by decomposing the instantaneous velocities and concentrations into three-dif-ferent-time-scale components respectively. A three-dimensional suspended sediment | Pingxing Ding Fengyan Shi Yazhen Kong | 1999 | Chinese Science Bulletin1999,44,19: | 2 |
| 20 | THz spectra of five borates crystals显示文摘Terahertz spectral responses have been studied for five borate crystals Na5[B2P3O13] (NBP), Zn3BPO (ZBP), SrB4O7 (SBO), Na3La9O3(BO 3)8 (NLBO) and PbB4O7 (PBO). It is found that the samples had good transmission in 0.25―1.5 THz region. Both SBO and NLBO have an absorption coefficient less than 10 cm1. Among them, SBO has not only the smallest absorption coefficient but also a very flat dispersion in the frequency region under investigation. Distinct resonance absorption peaks are observed for ZBP at ν1 = 1.4 THz, ν2 = 2.0 THz and SBO at ν = 2.4 THz. In the spectrum of PBO, two abnormal dispersions appear in the frequency regions 1.44―1.74 and 2.2―2.5 THz. The absorption coefficients and refraction indices of the five crystals are extracted from the THz time-domain (THz-TDS) spectra in 0.25―2.5 THz region. The properties and origins of the spectral responses are addressed. | HOU BiHui WANG YaLi WU YiCheng CHEN Hua WANG Li FU PengZhen LIU FengYan | 2008 | Chinese Science Bulletin2008,53,1: | 2 |