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9篇 您的检索式:作者名="Yanchao Han"
    题名 作者 年代 出处 被引量
1Graphene-manganese oxide hybrid porous material and its application in carbon dioxide adsorption显示文摘Graphene-Mn3O4 (GMNO) hybrid porous material is prepared by a hydrothermal method and its performance in carbon dioxide adsorption is investigated.In the synthesis of the GMNO materials,MnO(OH)2 colloid obtained by the hydrolysis of Mn 2+ in basic solution was using as the precursor of the Mn3O4.After a hydrothermal reaction of the mixture of graphene oxide (GO) and MnO(OH)2,GO was reduced into graphene and the MnO(OH)2 was transformed into Mn3O4 with enhanced crystallization.X-ray diffraction,thermal gravimetric analysis,transmission electron microscopy,infrared spectra and Raman spectroscopy were taken to characterize the hybrid material.The porosity and the carbon dioxide adsorption ability are measured by gas sorption analysis,in which the as-prepared GMNO hybrid materials exhibit a specific surface area ranging from 140 to 680 m2g-1 and a maximum carbon dioxide capacity of about 11 wt%.ZHOU Ding LIU Qing CHENG QianYi ZHAO YanChao CUI Yi WANG Tao HAN BaoHang 2012Chinese Science Bulletin2012,57,23:4
2Multi-feature Multimodal Biometric Recognition Based on Quaternion Locality Preserving Projection显示文摘This paper proposed Quaternion locality preserving projection(QLPP)for multi-feature multimodal biometric recognition.Multi-features fill the real part or the three imaginary parts of quaternion to constitute the quaternion fusion features.In quaternion division ring,QLPP extracts the local information and finds essential manifold structure of the quaternion fusion features.Deferent from Quaternion principal component analysis(QPCA)and Quaternion fisher discriminant analysis(QFDA),QLPP takes advantage of the optimal linear approximations to find the nonlinear manifold structures.Two experiments are designed:one fuses four features from two biometric modalities,and the other fuses three features from three biometric modalities.The experimental results show the proposed algorithm achieves much better performance than the unimodal biometric algorithms,the traditional feature level fusion methods(weighted sum rule and series rule)and two quaternion representation methods(QPCA and QFDA).WANG Zhifang ZHEN Jiaqi LI Yanchao LI Guoqiang HAN Qi 2019Chinese Journal of Electronics2019,28,4:3
3Benzimidazole-Linked Porous Polymers:Synthesis and Gas Sorption Properties显示文摘A series of benzimidazole-linked porous polymers are obtained by the condensation reaction between the o-aminobenzol end groups of building blocks(2,3,6,7,10,11-hexaaminotriphenylene,3,3'-diaminobenzidine or 1,2,4,5-benzenetetraamine)and the aldehyde groups of building blocks[terephthalicaldehyde,4,4'-biphenyl-dicarboxaldehyde,1,3,5-tris(4-acetylphenyl)benzene or 1,3,5-tris(4-formylbiphenyl)amine]in one-pot synthesis without employing any catalyst or template.The existence of the imidazole ring in the obtained polymers could be identified by Fourier transform infrared and solid-state^(13)C CP/MAS NMR spectroscopy.The sphere-shaped mor-phology of the obtained polymers is observed through scanning electron microscopy.The polymers possess Brunauer-Emmett-Teller specific surface area values over 600 m^(2)·g^(-1),showing hydrogen storage(up to 1.6 wt%,at 77 K and 1×10^(5)Pa)and carbon dioxide capture(up to 12.6 wt%,at 273 K and 1×10^(5)Pa)properties.Such poly-mers would possess good performance in the applications of gas storage and separation.Yi Cui Yanchao Zhao Tao Wang Baohang Han 2015Chinese Journal of Chemistry2015,33,1:2
4In?vitro and in?vivo biological performance of collagen-chitosan/silicone membrane bilayer dermal equivalent显示文摘Lie Ma Yanchao Shi Yixin Chen Haiguang Zhao Changyou Gao Chunmao Han 2007Journal of Materials Science: Materials in Medicine2007,,11:1
5prpf4 is essential for cell survival and posterior lateral line primordium migration in zebrafish显示文摘Prpf4(pre-mRNA processing factor 4),a key component of spliceosome,plays critical roles in pre-mRNA splicing and its mutations result in retinitis pigmentosa due to photoreceptor defects.In this study,we characterized a zebrafishharboring a Tol2 transposon-based gene trap cassette in the third intron of the prpf4 gene.Cells in the brain and spinal cord gradually undergo p53-dependent apoptosis after 28 hpf insuggesting that a widespread function of prpf4 in neural cell survival.In addition,prpf4 is essential for survival of posterior lateral line primordial(pLLP)cells.prpf4 deficiency perturbs Fgf,and chemokine signaling pathways and impairs pLLP migration.RNA-Seq analysis suggests that prpf4 deficiency may impair spliceosome assembly,leading to compensatory upregulation of core spliceosomal genes and alteration of pre-mRNA splicing.Taken together,our studies uncover an essential role of prpf4 in pre-m RNA splicing,cell survival and pLLP migration.Yixia Wang Yanchao Han Pengfei Xu Shihui Ding Guangyuan Li Hongbin Jin Yaping Meng Anming Meng Shunji Jia 2018Journal of Genetics and Genomics2018,45,8:1
6Preparation of Tris(2-aminoethyl)amine-Cross-Linked Cyclodextrin-Based Porous Nanospheres and Their Application as Drug Delivery Systems显示文摘Cyclodextrins (CD ) 表演功能, biocompatibility,和有许多分子的主人客人包括能力。这些唯一的性质作为药交货系统为 CD 的利用提供大潜力。一条容易、绿、有效的合成途径被描述从 100 ~ 400 nm 与尺寸分布开发基于 CD 的多孔的 nanospheres (CDPNS ) 。新 cross-linker tris (2-aminoethyl ) 胺习惯于交叉结合在房间温度的修改 CD。结果基于 CD 的聚合物(CDP ) 在一个分离过程期间从随机的形态学被重塑进球形的形状,并且 CDPNS 被获得。CDP 和 CDPNS 的形态学与扫描电子显微镜学被观察。平均直径和 CDPNS 的尺寸分发被动态轻散布决定。产生产品的结构被使用 Fourier 变换描绘红外线的光谱学, 1H NMR 光谱学,固态 13C CP/MAS NMR 光谱学,和 X 光检查衍射。而且,研究在药装载上并且在 CDPNS 的 vitro 版本行为被进行,它被紫外光谱学监视。准备 CDPNS 作为药交货系统显示出潜力。Youqing Wang Yanchao Zhao Baohang Han 2013Chinese Journal of Chemistry2013,31,5:1
7Reading comprehension without phonological mediation:Further evidence from a Chinese aphasic individual显示文摘An important issue in visual word comprehension literature is whether or not semantic access is mediated by phonological processing. In this paper, we present a Chinese individual, YGA, who provides converging evidence to directly address this issue. YGA has sustained damage to the left posterior superior and middle temporal lobe, and shows difficulty in orally name pictures and reading printed words aloud. He makes phonological errors on these tasks and also semantic errors on picture naming, indicating a deficit at accessing the phonological representations for output. However, he is intact at understanding the meaning of visually presented words. Such a profile challenges the hypothesis that semantic access in reading is phonologically mediated and provides further evidence for the universal principle of direct semantic access in reading.HAN ZaiZhu & Bi YanChao State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing 100875, China 2009Science China(Life Sciences)2009,52,5:1
8Intrinsically stretchable polymer semiconductor based electronic skin for multiple perceptions of force,temperature,and visible light显示文摘As a stretchable seamless device,electronic skin(E-skin)has drawn enormous interest due to its skin-like sensing capability.Besides the basic perception of force and temperature,multiple perception that is beyond existing functions of human skin is becoming an important direction for E-skin developments.However,the present E-skins for multiple perceptions mainly rely on different sensing materials and heterogeneous integration,resulting in a complex device structure.Additionally,their stretchability is usually achieved by the complicated microstructure design of rigid materials.Here,we report an intrinsically stretchable polymer semiconductor based E-skin with a simple structure for multiple perceptions of force,temperature,and visible light.The E-skin is on the basis of poly(3-hexylthiophene)(P3HT)nanofibers percolated polydimethylsiloxane(PDMS)composite polymer semiconductor,which is fabricated by a facile solution method.The E-skin shows reliable sensing capabilities when it is used to perceive strain,pressure,temperature,and visible light.Based on the E-skin,an intelligent robotic hand sensing and controlling system is further demonstrated.Compared with conventional E-skins for multiple perceptions,this E-skin only has a simple monolayer sensing membrane without the need of combining different sensing materials,heterogeneous integration,and complicated microstructure design.Such a strategy of utilizing intrinsically stretchable polymer semiconductor to create simple structured E-skin for multiple perceptions will promote the development of E-skins in a broad application scenario,such as artificial robotic skins,virtual reality,intelligent gloves,and biointegrated electronics.Dongjuan Liu Pengcheng Zhu Fukang Zhang Peishuo Li Wenhao Huang Chang Li Ningning Han Shuairong Mu Hao Zhou Yanchao Mao 2023Nano Research2023,16,1:0
9TGFβ1a regulates zebrafish posterior lateral line formation via Smad5 mediated pathway显示文摘The zebrafish sensory posterior lateral line(pLL)has become an attractive model for studying collective cell migration and cell morphogenesis.Recent studies have indicated that chemokine,Wnt/β-catenin,Fgf,and Delta-Notch signaling pathways participate in regulating pLL development.However,it remains unclear whether TGFβsignaling pathway is involved in pLL development.Here we report a critical role of TGFβ1 in regulating morphogenesis of the pLL primordium(pLLP).The tgfβ1a gene is abundantly expressed in the lateral line primordium.Knockdown or knockout of tgfβ1a leads to a reduction of neuromast number,an increase of inter-neuromast distance,and a reduced number of hair cells.The aberrant morphogenesis in embryos depleted of tgfβ1a correlates with the reduced expression of atoh1a,deltaA,and n-cadherin/cdh2,which are known important regulators of the pLLP morphogenesis.Like tgfβ1a depletion,knockdown of smad5 that expresses in the pLLP,affects pLLP development whereas overexpression of a constitutive active Smad5 isoform rescues the defects in embryos depleted of tgfβ1a,indicating that Smad5 mediates tgfβ1a function in pLLP development.Therefore,TGFβ/Smad5 signaling plays an important role in the zebrafish lateral line formation.Cencan Xing Bo Gong Yu Xue Yanchao Han Yixia Wang Anming Meng Shunji Jia 2015Journal of Molecular Cell Biology2015,7,1:0
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