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16篇 您的检索式:作者名="HanJian"
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1A rare lobopod with well-preserved eyes from Chengjiang Lagerst(?)tte and its implications for origin of arthropods显示文摘The origin of arthropods has long been one ofthe most hotly-debated subjects. Arthropods used to bethought closely related with annelids, but the two groups arenow believed to be separated into two major realms withinProtostomia on the basis of new molecular data. Although itis generally held by paleontologists that arthropods should berooted in the early lobopods-.a kind of worm-like creaturewith non-segmented legs, no intermediate forms have beenfound to bridge them. Here we report an organism with amixture of characters, including features characteristic ofarthropods (e.g., primary cephalization with paired eyes,paired antennae, and preliminary tagmosis) and of lobopods(e.g., worm-like body design, the dorsal spines, andnon-segmented limbs or lobe-like legs). The discovery of therare transitional form may throw new light on the origin ofarthropods and suggests that the most primitive arthropodsbegan with paired uniramous legs and the biramous onesevolved later.LIUJianni SHUDegan HANJian ZHANGZhifei 2004Chinese Science Bulletin2004,49,10:11
2Effects of propofol on ammonium chloride-exposed astrocyte morphology and aquaporin-4 expression显示文摘Ammonia induces astrocyte swelling, which is strongly associated with overexpression of aquaporin-4. However, the mechanisms by which ammonia induces astrocyte swelling, and subsequently upregulating aquaporin-4 expression, remain unknown. In the present study, astrocytes were cultured in vitro and exposed to ammonium chloride (NH4Cl), followed by propofol, protein kinase C agonist, or antagonist, respectively. Astrocyte morphology was observed by light microscopy, and aquaporin-4 expression was detected by western blot analysis. Results showed that propofol or protein kinase C agonist significantly attenuated the degree of NH4Cl-induced astrocyte swelling and inhibited increased aquaporin-4 expression. Propofol treatment inhibited aquaporin-4 overexpression in cultured astrocyte induced by NH4Cl; protein kinase C pathway activation is potentially involved.Hanjian Chen Caifei Pan Peng Guo Yueying Zheng Shengmei Zhu 2011Neural Regeneration Research2011,6,5:3
3Briefsituationofresearchongrapevineroot-stockrJ]显示文摘GUOLei(郭磊) HANJian(韩键) SONGChangnian(宋长年) JournalofJiangsuForestryScience&Technolo-gy0,,:1
4Regional atrophy of the basal ganglia and thalamus in idiopathic generalized epilepsy显示文摘Hanjian Du Yuanchao Zhang Bing Xiev 2011Journal of Magnetic Resonance Imaging2011,33,4:1
5Crystallography,Packing Mode,and Aggregation State of Chlorinated Isomers for Efficient Organic Solar Cells显示文摘Revealing the molecular packing,intermolecular interactions,and aggregation behaviors in the nanocrystalline bulk heterojunction(BHJ)domains undertake the tasks for future materials design for efficient solar cells,especially in understanding the structure–property relationship of isomeric non-fullerene acceptors(NFAs).Theoretical calculations reveal that 2ClIC-βδ,withβ-andδ-chlorine-substituted terminal groups,achieves a relatively higher dipole moment for enhanced intermolecular interactions.More importantly,when comparing the single-crystal X-ray diffraction patterns of three isomeric NFAs,BTIC-BO4Cl-βδ,BTIC-BO4Cl-βγ,and BTIC-BO4Cl,the synergistic effect of chlorine atoms at theβ-andδ-positions endows BTIC-BO4Cl-βδbetter molecular planarity with a dihedral angle of 1.14°.In turn,this creates the shortestπ∙∙∙πdistance(3.28Å)and smallest binding energies(−51.66 kcal mol^(−1))of the three NFAs,resulting in the tightest three-dimensional network packing structure with a framework of L_(x)=14.0Åand L_(y)=13.6Å.Such a structure has multiple intermolecular interactions for better charge transfer.However,the chlorine atomat theγ-position in the other two isomers contributes to non-intermolecular interactions with subordinate packing arrangements.Subsequently,the red-shifted UV-absorption and higher electron mobility observed in neat films of BTIC-BO4Cl-βδagree well with its more ordered crystallinity.This leads to a more suitable fiber-like phase separation in the corresponding active blend,ultimately improving the device performance with superior charge transport.As a result,the highest power conversion efficiency of 17.04%with a current density of 26.07 mA cm^(−2)was obtained with the BTIC-BO4Cl-βδ-based device.The carrier dynamics test and grazing incidence wide-angle X-ray scattering measurement indicate that the packing arrangement of molecules in the nanocrystalline BHJ domains is consistent with their crystallinity.This work investigates the structure–property differences in three acceptors and emphasizes the effect of isomeric chlorine substitution,which suggests that changes in the crystal packing arrangement,especially the size of the framework,have a considerable influence on charge carrier transport and ultimately are reflected on the device efficiency elevation.Hanjian Lai Xue Lai Zi-Yi Chen Yulin Zhu Hengtao Wang Hui Chen Pu Tan Yiwu Zhu Yuanzhu Zhang Feng He 2023CCS Chemistry2023,5,5:1
6InfluenceofTiO2particlesonrheologicalpropertyandmicrostructureofPA6chips显示文摘HanJian Zhang Meifei ZhangShunhua etal 2010Rare Metal MaterialsandEngineering2010,39,:1
7A Voxel-based morphometlic analysis of cerebral gray matter in subcor-tical ischemic vascular de- mentia patients and nomml aged controls显示文摘Chuanming L Hanjian D Jian Z 2011Int J Med Sci2011,8,6:1
8Small Signal Circuit Model of Double Photodiodes显示文摘The transmission delay of photogenerated carriers in a CMOS-process-compatible double photodiode (DPD) is analyzed by using device simulation.The DPD small signal equivalent circuit model which includes transmission delay of photogenerated carriers is given.From analysis on the frequency domain of the circuit model the device has two poles.One has the relationship with junction capacitance and the DPD’s load,the other with the depth and the doping concentration of the N-well in the DPD.Different depth of the N-well and different area of the DPDs with bandwidth were compared.The analysis results are important to design the high speed DPDs.HANJian,zhong NiGuo-qiang MAOLu-hong 2004Semiconductor Photonics and Technology2004,10,3:1
9显示文摘HanJian(-俭) ZhengHongguang(郑宏光) WuDifeng(吴狄峰)etal 2010宝钢技术2010,,2:1
10EffectofadditionofyttriumonasGcastmicrostructureof7055aluminumalloy显示文摘HanJian DaiQixun LiGuirong etal 2009JournalofMaterialsEngineering2009,04,:1
11Pediculate Brachiopod Diandongia pista from the Lower Cambrian of South China显示文摘ZHANGZhifei HANJian ZHANGXingliang LIUJianni SHUDegan 2010Acta Geologica Sinica ‐ English Edition2010,,3:1
12Near-Infrared All-Fused-Ring Nonfullerene Acceptors Achieving an Optimal Efficiency-Cost-Stability Balance in Organic Solar Cells显示文摘Synergistically achieving stability,cost,and efficiency is crucial for the commercialization of organic solar cells(OSCs).Despite the rapid development of 2-(3-oxo-2,3-dihydro-1H-inden-1-ylidene)malo nonitriletypenon fullerene acceptors(NFAs),they areinherently unstable due to the vulnerable exocyclic double bond and possess high synthesis complexity(SC).Based on the“all-fused-ring electron acceptor(AFAR)”concept,we report two new near-infrared NFAs,F11 and F13,featuring all fused dodecacyclic rings.By developing a whole set of synthetic procedures,F11 and F13 can be conveniently prepared at a 10 g scale within a notably short period,displaying both the low SC and the lowest costs among reported NFAs,even comparable to the classical photovoltaic material,P3HT.In comparison with the one-dimensional stacking of ITYM(ITYM=2,2′-(7,7,15,15-tetrahexyl-7,15-dihydro-s-indaceno[1,2-b:5,6-b′]diindeno[1,2-d]thiophene-2,10(2H)-diylidene)dimalononitrile),the first AFRA,and mixed J-and H-aggregations in Y6,F-acceptors show a compact honeycomb-type three-dimensional stacking with exclusive J-aggregations,favoring multichannel charge transport.By matching a medium-bandgap polymer donor,F13 delivers greater than 13%power conversion efficiencies,which is the highest performance among non-INCN acceptors,and shows device stability superior to the typical ITIC-and Y6-based OSCs as evidenced by the negligible burn-in losses.This work presents a first and successful example of NFAs achieving an optimal efficiency-cost-stability balance in OSCs.Wenrui Liu Shengjie Xu Hanjian Lai Wuyue Liu Feng He Xiaozhang Zhu 2023CCS Chemistry2023,5,3:0
13Ternary strategy: An analogue as third component reduces the energy loss and improves the efficiency of polymer solar cells显示文摘Ternary strategy is a convenient and effective method to boost the performance of polymer solar cells(PSCs).Utilizing a ternary strategy to trade-off between the energy loss and the efficiency of devices however requires further exploration.Here,through the hydroxyl(-OH)and acetoxy(-OCOMe)substitution atβ-position of the IC terminal group,we developed two new synthetic acceptors,BTIC-OH-βand BTICOCOMe-β,which were designed to confine the morphology aggregation.Introduction of an analogue as the third component provides a simple but efficient way to further balance the short current density(Jsc)and open-circuit voltage(Voc),leading to a champion efficiency based on PBDB-T:PBDB-TF:BTIC-OCOMe-β,effectively as high as 12.45%.The results were examined mainly in terms of the morphology characterization,electroluminescence external quantum efficiency(EQEEL),steady-state photoluminescence(PL)and transient technology.It suggested fine-tuning of the morphology by ratio modulation,reduction of the energy loss,construction of a promising pathway for charge transfer in the ternary system and enhancing the carrier extraction.In this way,a ternary strategy with an analogue donor could provide more routes to higher-quality solar cells.Longzhu Liu Hanjian Lai Feng He 2022Journal of Energy Chemistry2022,31,7:0
14Lactobacillus fermentum as a new inhibitor to control advanced glycation end-product formation during vinegar fermentation显示文摘The inhibitory activity of lactic acid bacteria(LAB)toward advanced glycation end-products(AGEs)during vinegar fermentation was studied,and its relationships with the substrate consumption,antioxidant capacity,total phenolic content,total flavonoid compounds,α-glucosidase,andα-amylase activity inhibition were evaluated.The vinegar was made from rice powder flour by liquid-state fermentation(LSF).The selected LAB strains were separately co-cultivated with Saccharomyces cerevisiae and Acetobacter pasteurianus 1.41 in alcoholic and acetic acid fermentation,respectively.Among 3 strains,Lactobacillus fermentum showed the strongest inhibitory effect on the formation of total fluorescent AGEs and carboxymethyl lysine(CML)/carboxyethyl lysine(CEL)in the fermentation process.The corresponding mechanisms included the acceleration of substrate consumtion,improvement of antioxidant activities,and inhibition ofα-glucosidase andα-amylase.In addition,the fluorescent AGEs and the CML/CEL were negatively correlated with the antioxidant activities,while theα-glucosidase andα-amylase activities were positively correlated with the total phenols and total flavonoids.Moreover,the variety of main flavor compounds increased,including esters,alcohols,phenols and acids.The results of the study support the potential use of screened LAB strains to inhibit the formation of fluorescent AGEs,CML and CEL on fermented products and in the food processing industry,without associated risks to consumers.Qin Li Leibing Li Hanjian Zhu Fan Yang Ke Xiao Lin Zhang Menglin Zhang Yongsheng Peng Chao Wang Dongsheng Li Qian Wu Mengzhou Zhou 2022Food Science and Human Wellness2022,11,5:0
15Tuning the Molecular Weight of Chlorine-Substituted Polymer Donors for Small Energy Loss显示文摘The molecular weight of polymers plays a major role in their aggregation and miscibility in active layer,which eventually dominate the energy loss and device performance.A series of chlorine-substituted PBD-CI polymers with controlled molecular weight have been synthesized as templates to discern a relationship between molecular weight and the optical properties,energy levels,morphologies,energy loss and photovoltaic performance.Although it has similar optical and electrochemical properties,when blended with acceptor N3,the low molecular weight polymer PBD-CI_(L) gives the biggest energy loss value,and a PCE of 12.06%.PBD-CI_(H) shows a moderate energy loss,but displays the lowest PCE of 9.00%as a result of excessive aggregation.PBD-CI_(M) with a medium molecular weight gives the smallest energy loss and achieves a PCE of 17.17%,which is among one of the highest values recorded to date for the C卜substituted polymer solar cells.Moreover,the molecular weight mainly affects the nonradiative energy loss(△E_(3)), PBD-CI_(M) also shows the smallest value of 0.252 eV among three polymer donors.These results show the effect of controlling the molecular weight to achieve a small energy loss and provide guidelines which can lead to an understanding of the real photovoltaic performance of new materials.Tingxing Zhao Huan Wang Mingrui Pu Hanjian Lai Hui Chen Yulin Zhu Nan Zheng Feng He 2021Chinese Journal of Chemistry2021,39,6:0
16Mutation inε-Sarcoglycan Induces a Myoclonus-Dystonia Syndrome-Like Movement Disorder in Mice显示文摘Myoclonus dystonia syndrome(MDS)is an inherited movement disorder,and most MDS-related mutations have so far been found in theε-sarcoglycan(SGCE)coding gene.By generating SGCE-knockout(KO)and human 237 C>T mutation knock-in(KI)mice,we showed here that both KO and KI mice exerted typical movement defects similar to those of MDS patients.SGCE promoted filopodia development in vitro and inhibited excitatory synapse formation both in vivo and in vitro.Loss of function of SGCE leading to excessive excitatory synapses that may ultimately contribute to MDS pathology.Indeed,using a zebrafish MDS model,we found that among 1700 screened chemical compounds,Vigabatrin was the most potent in readily reversing MDS symptoms of mouse disease models.Our study strengthens the notion that mutations of SGCE lead to MDS and most likely,SGCE functions to brake synaptogenesis in the CNS.Jiao Li Yiqiong Liu Qin Li Xiaolin Huang Dingxi Zhou Hanjian Xu Feng Zhao Xiaoxiao Mi Ruoxu Wang Fan Jia Fuqiang Xu Jing Yang Dong Liu Xuliang Deng Yan Zhang 2021Neuroscience Bulletin2021,37,3:0
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