检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

锂箔预锂对高比能电池体系性能的影响研究

电源技术 2024年第7期48卷 1232-1238页

作者：杨幸遇梁栋张涛李蒙赵冲冲郑州中科新兴产业技术研究院河南省储能材料与过程重点实验室河南郑州450003

采用高温热平压工艺将超薄金属锂箔与高比容量硅氧负极进行预锂复合,研究不同预锂量(厚度)对首效的影响;搭配不同高镍正极材料体系,制备单层及10Ah级软包电池进行放大验证,并通过EIS阻抗测试、三电极电位分析和SEM-EDS、SS-NMR表征,研... 详细信息

采用高温热平压工艺将超薄金属锂箔与高比容量硅氧负极进行预锂复合,研究不同预锂量(厚度)对首效的影响;搭配不同高镍正极材料体系,制备单层及10Ah级软包电池进行放大验证,并通过EIS阻抗测试、三电极电位分析和SEM-EDS、SS-NMR表征,研究预锂量(厚度)对首次放电容量和循环性能的影响。结果表明,搭配高镍Ni83与超高镍Ni90三元正极材料体系结果相一致,随着预锂量的增加,首次放电容量和首效明显增加,但循环性能随着预锂量的增加而逐步恶化。5μm锂箔预锂后综合性能提升最优,首效提升至93%,200次循环后容量保持率达到93.4%。双面预锂制备10Ah级软包电池,5μm锂箔预锂的首次充放电效率提升至90%以上,15 W恒功率放电表现出与对照组同等的倍率性能,比能量达到360Wh/kg。

关键词：高比能负极预锂化热压复合超薄锂箔

Fe-Based Metal-Organic Framework and Its Derivatives for Reversible Lithium Storage

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2017年第8期33卷 768-774页

作者： Yan Jin chongchong zhao Yichao Lin Deyu Wang Liang Chen Cai Shen Chinese Academy of Sdences Ningbo Institute of Materials Technology&EngineeringNingbo 315201China

The use of a Fe-based metal organic framework（MOF）, namely MIL-88B（Fe）, as active material for lithium ion batteries（LIBs） is reported for the first time in the present work. Fe-based MOF demonstrated high capacity, excellent cycling stability and rate performance when used as anode. A highly reversible capacity of 680 mAhg^（-1） after 500 cycles at a current density of 200 m A g^（-1） was obtained. In addition, Fe2O3 and Fe3O4/C composites were obtained from Fe-based MOFs through thermal treatment. Both Fe2O3 and Fe3O4/C composites demonstrated high capacity and excellent cycling stability.

关键词： Lithium ion battery Anode Metal organic framework Metal oxide

Expression of the inactive ZmMEK1 induces salicylic acid accumulation and salicylic acid-dependent leaf senescence

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2016年第8期58卷 724-736页

作者： Yuan Li Ying Chang chongchong zhao Hailian Yang Dongtao Ren State Key Laboratory of Plant Physiology and Biochemistry College of Biological Sciences China Agricultural University

Leaf senescence is the final leaf developmental process that is regulated by both intracellular factors and environmental conditions. The mitogen-activated protein kinase（MAPK） signaling cascades have been shown to play important roles in regulating leaf senescence; however, the component（s） downstream of the MAPK cascades in regulating leaf senescence are not fully understood. Here we showed that the transcriptions of Zm MEK1, Zm SIMK1, and Zm MPK3 were induced during dark-induced maize leaf ***, in-gel kinase analysis revealed the 42 k Da MAPK was activated. Zm MEK1 interacted with Zm SIMK1 in yeast and maize mesophyll protoplasts and Zm SIMK1 was activated by Zm MEK1 in vitro. Expression of a dominant negative mutant of Zm MEK1 in Arabidopsis transgenic plants induced salicylic acid（SA） accumulation and SA-dependent leaf *** MEK1 interacted with Arabidopsis MPK4 in yeast and High-Im pact activated MPK4 in vitro. SA treatment accelerated darkinduced maize leaf senescence. Moreover, blockage of MAPK signaling increased endogenous SA accumulation in maize leaves. These findings suggest that Zm MEK1-Zm SIMK1 cascade and its modulating SA levels play important roles in regulating leaf senescence.

关键词： Leaf senescence MAPK cascade salicylic acid

The MYB transcription factor OsMYBxoc1 regulates resistance to Xoc by directly repressing transcription of the iron transport gene OsNRAMP5 in rice

在线全文

学校读者我要写书评

暂无评论

Plant Communications 2024年第6期5卷 230-245页

作者： Haimiao Zhang Baolong Sun Wei Wu Yang Li Ziyi Yin chongchong Lu Haipeng zhao Lingguang Kong Xinhua Ding State Key Laboratory of Crop Biology Shandong Provincial Key Laboratory of Agricultural MicrobiologyCollege of Plant ProtectionShandong Agricultural UniversityTai’an 271018China

Bacterial leaf streak caused by Xanthomonas oryzae ***(Xoc)is a continuous threat to rice cultivation,leading to substantial yield losses with socioeconomic *** ions are essential mineral nutrients for plant growth,but little information is available on how they influence mechanisms of rice immunity against ***,we investigated the role of the myeloblastosis-related(MYB)transcriptional repressor OsMYBxoc1 in modulation of rice resistance through control of iron ion *** of OsMYBxoc1 significantly increased rice resistance,whereas OsMYBxoc1 RNA-interference lines and knockout mutants showed the opposite *** of OsMYBxoc1 expression dampened the immune response induced by pathogen-associated molecular *** demonstrated that OsMYBxoc1 binds specifically to the OsNRAMP5 promoter and represses transcription of ***5,a negative regulator of rice resistance to bacterial leaf streak,possesses metal ion transport activity,and inhibition of OsMYBxoc1 expression increased the iron ion content in *** of the iondependent H2O2 scavenging enzyme catalase was increased in plants with suppressed expression of OsMYBxoc1 or overexpression of *** found that iron ions promoted Xoc infection and interfered with the production of reactive oxygen species induced by *** type Ⅲ effector XopAK directly inhibited OsMYBxoc1 transcription,indicating that the pathogen may promote its own proliferation by relieving restriction of iron ion transport in *** addition,iron complemented the pathogenicity defects of the RS105_DXopAK mutant strain,further confirming that iron utilization by Xoc may be dependent upon *** conclusion,our study reveals a novel mechanism by which OsMYBxoc1 modulates rice resistance by regulating iron accumulation and demonstrates that Xoc can accumulate iron ions by secreting the effector XopAK to promote its own infection.

关键词： pathogen effector plant immunity bacterial leaf streak metal ion

Fabrication and properties of high quality InGaN-based LEDs with highly reflective nanoporous GaN mirrors

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Photonics Research 2018年第12期6卷 1144-1150页

作者： DEZHONG CAO XIAOKUN YANG LUYANG SHEN chongchong zhao CAINA LUAN JIN MA HONGDI XIAO School of Microelectronics Shandong UniversityJinan 250100China School of Science Xi'an Polytechnic UniversityXi'an 710048China School of Physics State Key Laboratory of Crystal MaterialsShandong UniversityJinan 250100China

Distributed Bragg reflectors (DBRs) are essential components for the development of optoelectronic *** this paper, we first report the use of the nanoporous GaN (NP-GaN) DBR as a template for regrowth of InGaN-based light-emitting diodes (LEDs). The wafer-scale NP-GaN DBR, which is fabricated by electrochemical etching in a neutral solution, has a smooth surface, high reflectivity (>99.5%), and wide spectral stop band width (>70 nm). The chemical composition of the regrown LED thin film is similar to that of the reference LED, but the photoluminescence (PL) lifetime, PL intensity, and electroluminescence intensity of the LED with the DBR are enhanced several times compared to those of the reference LED. The intensity enhancement is attributed to the light reflection effect of the NP-GaN DBR and improved crystalline quality as a result of the etching scheme, whereas the enhancement of PL lifetime is attributable to the latter.

关键词： Distributed Bragg reflectors (DBRs) InGaN-based light-emitting diodes (LEDs) highly reflective nanoporous GaN mirrors

Unraveling the coordination behavior and transformation mechanism of Cr^(3+) in Fe–Cr redox flow battery electrolytes

在线全文

学校读者我要写书评

暂无评论

Materials Reports(Energy) 2024年第2期4卷 54-63页

作者： Xiaojun zhao Xinwei Niu Xinyuan Liu chongchong Wu Xinyu Duan Zhiqi Ma Yan Xu Hao Li Weijie Yang Department of Electrical Engineering North China Electric Power UniversityBaoding071003PR China Department of Energy Power and Mechanical Engineering North China Electric Power UniversityBaoding071003PR China CNOOC Institute of Chemicals&Advanced Materials Beijing102200PR China Shanghai LongVault Energy Technology Co. Ltd.Shanghai201615PR China Advanced Institute for Materials Research(WPI-AIMR) Tohoku UniversitySendai980-8577Japan

Currently,the iron chromium redox flow battery(ICRFB)has become a research hotspot in the energy storage field owing to its low cost and ***,the activity of electrolyte is still ambiguous due to its complicated solution ***,we performed a pioneering investigation on the coordination behavior and transformation mechanism of Cr^(3+)in electrolyte and prediction of impurity ions impact through quantum chemistry *** on the structure and symmetry of electrostatic potential distribution,the activity of different Cr^(3+)complex ions is confirmed as[Cr(H2O)5Cl]^(2+)>[Cr(H2O)4Cl2]+>[Cr(H2O)6]^(3+).The transformation mechanism between[Cr(H2O)6]^(3+)and[Cr(H2O)5Cl]^(2+)is *** find the metal impurity ions(especially Mg^(2+))can exacerbate the electrolyte deactivation by reducing the transformation energy barrier from[Cr(H2O)5Cl]^(2+)(24.38 kcal mol^(−1))to[Cr(H2O)6]^(3+)(16.23 kcal mol^(−1)).The solvent radial distribution and mean square displacement in different solvent environments are discussed and we conclude that the coordination configuration limits the diffusivity of Cr^(3+).This work provides new insights into the activity of electrolyte,laying a fundamental sense for the electrolyte in ICRFB.

关键词： Fe-Cr redox flow battery Coordination Electrolyte Quantum chemistry computation

Oxidized galectin-1 in SLE fails to bind the inhibitory receptor VSTM1 and increases reactive oxygen species levels in neutrophils

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cellular & Molecular Immunology 2023年第11期20卷 1339-1351页

作者： Xu Jiang Xinyue Xiao Hao Li Yiyi Gong Min Wang Huaxia Yang Lidan zhao Ying Jiang Yanping Wei chongchong zhao Jin Li Yuling Chen Shan Feng Haiteng Deng Shiliang Ma Yue Xu Yudong Liu George C.Tsokos Minghong Jiang Xuan Zhan Medical Research Center State Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalDepartment of RheumatologyBeijing HospitalNational Center of GerontologyInstitute of Geriatric MedicineChinese Academy of Medical SciencesBeijingChina Department of Rheumatology Key Laboratory of MyositisChina-Japan Friendship HospitalBeijingChina Department of Medicine Beth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMAUSA Medical Research Center Peking Union Medical College HospitalChinese Academy of Medical SciencesBeijingChina Department of Rheumatology Beijing HospitalNational Center of GerontologyInstitute of Geriatric MedicineClinical Immunology CenterChinese Academy of Medical SciencesBeijingChina Department of Rheumatology and Clinical Immunology Peking Union Medical College HospitalClinical Immunology CenterChinese Academy of Medical Sciences and Peking Union Medical CollegeThe Ministry of Education Key LaboratoryBeijingChina Department of Rheumatology Xiangya HospitalCentral South UniversityHunanChina MOE Key Laboratory of Bioinformatics Center for Synthetic&Systems BiologySchool of Life SciencesTsinghua UniversityBeijingChina Key Laboratory of Structural Biology of Zhejiang Province School of Life SciencesWestlake UniversityHangzhouZhejiangChina State Key Laboratory of Common Mechanism Research for Major Diseases Institute of Basic Medical Sciences Chinese Academy of Medical SciencesSchool of Basic Medicine Peking Union Medical CollegeBeijingChina

Inhibitory immune receptors set thresholds for immune cell activation,and their deficiency predisposes a person to autoimmune ***,the agonists of inhibitory immune receptors remain largely unknown,representing untapped sources of treatments for autoimmune ***,we show that V-set and transmembrane domain-containing 1(VSTM1)is an inhibitory receptor and that its binding by the competent ligand soluble galectin-1(Gal1)is essential for maintaining neutrophil viability mediated by downregulated reactive oxygen species ***,in patients with systemic lupus erythematosus(SLE),circulating Gal1 is oxidized and cannot be recognized by VSTM1,leading to increased intracellular reactive oxygen species levels and reduced neutrophil *** neutrophil function or death contributes significantly to the pathogenesis of SLE by providing danger molecules and autoantigens that drive the production of inflammatory cytokines and the activation of autoreactive ***,serum levels of glutathione,an antioxidant able to convert oxidized Gal1 to its reduced form,were negatively correlated with SLE disease *** together,our findings reveal failed inhibitory Gal1/VSTM1 pathway activation in patients with SLE and provide important insights for the development of effective targeted therapies.

关键词： Systemic lupus erythematosus ROS VSTM1 Galectin-1 Glutathione

超声心动图评价动脉瘤性蛛网膜下腔出血患者心脑功能损伤程度的前瞻性研究

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

分子影像学杂志 2024年第1期47卷 42-46页

作者：齐治赵翀翀刘雪梅曲志成陈鹏袁芳王颖陈斯丹谭篪董鑫首都医科大学附属北京中医医院超声科北京100010 兰州大学第二医院神经内科甘肃兰州730030 首都医科大学附属北京中医医院急诊科北京100010 首都医科大学附属北京中医医院针灸科北京100010 首都医科大学附属北京中医医院顺义医院超声科北京101300

目的应用超声心动图评价动脉瘤性蛛网膜下腔出血(aSAH)发生后早期及晚期心脏功能的变化。方法纳入2018年5月~2023年5月于首都医科大学附属北京中医医院确诊为aSAH的患者83例。按心肌肌钙蛋白(cTnI)水平将其分为高cTnI组(cTnI≥0.3 ng/mL... 详细信息

目的应用超声心动图评价动脉瘤性蛛网膜下腔出血(aSAH)发生后早期及晚期心脏功能的变化。方法纳入2018年5月~2023年5月于首都医科大学附属北京中医医院确诊为aSAH的患者83例。按心肌肌钙蛋白(cTnI)水平将其分为高cTnI组(cTnI≥0.3 ng/mL,n=25)及低cTnI组(cTnI<0.3 ng/mL,n=58)。超声心动图评价左室长轴应变及径向应变。分别计算得出整体长轴应变(GLS)及每个节段长轴应变达峰时间变异程度(LT-Dispersion)、每个节段径向应变达峰时间变异程度(RT-Dispersion)及乳头肌水平左室短轴切面左室前间隔与左室后壁径向应变达峰时间差值(APT)。结果发生后早期高cTnI组LT-Dispersion、RT-Dispersion、APT及GLS受损更为显著(P<0.05);2组发生后晚期LT-Dispersion、RT-Dispersion、APT及GLS较发生后早期有明显改善(P<0.05),低cTnI组改善程度较高cTnI组更显著(P<0.05)。结论GLS及反映左室局部运动不协调的指标LT-Dispersion、RT-Dispersion及APT与表现为cTnI升高的aSAH心脑损伤密切相关。超声心动图评价动脉瘤性蛛网膜下腔出血患者心脑功能损伤程度具有重要的临床应用价值。

关键词：蛛网膜下腔出血动脉瘤性心脑功能损伤超声心动图

Recognition of the inducible,secretory small protein OsSSP1 by the membrane receptor OsSSR1 and the co-receptor OsBAK1 confers rice resistance to the blast fungus

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2024年第5期17卷 807-823页

作者： Tianfeng zhao Shijie Ma Ziying Kong Haimiao Zhang Yi Wang Junzhe Wang Jiazong Liu Wanzhen Feng Tong Liu Chunyan Liu Suochen Liang Shilin Lu Xinyu Li Haipeng zhao chongchong Lu Muhammad Zunair Latif Ziyi Yin Yang Li Xinhua Ding State Key Laboratory of Crop Biology Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect PestsCollege of Plant ProtectionShandong Agricultural UniversityTaian 271018ShandongChina College of Breeding and Multiplication(Sanya Institute of Breeding and Multiplication) Hainan UniversitySanya 572024HainanChina

The plant apoplast,which serves as the frontline battleground for long-term host–pathogen interactions,harbors a wealth of disease resistance ***,the identification of the disease resistance proteins in the apoplast is relatively *** this study,we identified and characterized the rice secretory protein OsSSP1(Oryza sativa secretory small protein 1).OsSSP1 can be secreted into the plant apoplast,and either in vitro treatment of recombinant OsSSP1 or overexpression of OsSSP1 in rice could trigger plant immune *** expression of OsSSP1 is suppressed significantly during Magnaporthe oryzae infection in the susceptible rice variety Taibei 309,and OsSSP1-overexpressing lines all show strong resistance to *** the knockout and overexpression results,we found that OsSSP1 positively regulates plant immunity in response to fungal ***,the recognition and immune response triggered by OsSSP1 depend on an uncharacterized transmembrane OsSSR1(secretory small protein receptor 1)and the key co-receptor OsBAK1,since most of the induced immune response and resistance are lost in the absence of OsSSR1 or ***,the OsSSP1 protein is relatively stable and can still induce plant resistance after 1 week of storage in the open environment,and exogenous OsSSP1 treatment for a 2-week period did not affect rice ***,our study reveals that OsSSP1 can be secreted into the apoplast and percepted by OsSSR1 and OsBAK1 during fungal infection,thereby triggering the immune response to enhance plant resistance to *** findings provide novel resources and potential strategies for crop breeding and disease control.

关键词： rice plant apoplast OsssP1 receptor plant resistance Magnaporthe oryzae