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Constructing high gravimetric and volumetric capacity sulfur cathode with LiCoO_(2)nanofibers as carbon-free sulfur host for lithium-sulfur battery

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Science China Materials 2021年第6期64卷 1343-1354页

作者： ya-tao Liu Lu Wang Sheng Liu Guo-Ran Li Xue-Ping Gao Institute of New Energy Material Chemistry School of Materials Science and EngineeringNankai UniversityTianjin 300350China

Although the gravimetric energy density of lithium-sulfur battery is very encouraging,the volumetric energy density still remains a challenge for the practical *** achieve the high volumetric energy density of battery,much attention should be paid to the sulfur ***,we introduce heavy lithium cobalt oxide(LiCoO_(2))nanofibers as sulfur host to enhance the volumetric capacity of cathode,maintaining the high gravimetric capacity *** the high tap density of 2.26 g cm^(−3),LiCoO_(2)nanofibers can be used to fabricate a really compact sulfur cathode,with a density and porosity of 0.85 g cm^(−3)and 61.2%,*** importantly,LiCoO2 nanofibers could act as an efficient electrocatalyst for enhancing the redox kinetics of sulfur species,ensuring the cathode electroactivity and alleviating the shuttle effect of ***,a balance between compact structure and high electrochemical activity is obtained for the sulfur *** the sulfur loading of 5.1 mg cm^(−2),high volumetric and gravimetric capacities of 724 mA h cm^(−3)cathode and 848 mA h g^(−1)cathode could be achieved based on the cathode volume and weight,***,with this efficient S/LiCoO_(2)cathode,the lithium corrosion by polysulfides is supressed,leading to a more stable lithium anode.

关键词： lithium-sulfur battery sulfur cathode volumetric energy density lithium cobalt oxide catalytic activity

乡村振兴背景下农产品品牌营销策略——以无锡阳山水蜜桃为例

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江苏农业科学 2023年第20期51卷 259-264页

作者：陶雅陶应虎金陵科技学院江苏南京211169

大力建设农产品品牌是乡村振兴战略背景下推动农业高质量发展的新使命,品牌营销是提高农产品市场竞争力和产品附加值的有效途径。首先,阐明乡村振兴背景下农产品开展品牌营销的意义以及当前农产品主要有产地品牌、品种品牌、企业品牌、... 详细信息

大力建设农产品品牌是乡村振兴战略背景下推动农业高质量发展的新使命,品牌营销是提高农产品市场竞争力和产品附加值的有效途径。首先,阐明乡村振兴背景下农产品开展品牌营销的意义以及当前农产品主要有产地品牌、品种品牌、企业品牌、产品品牌等4种品牌模式。其次,深入分析目前我国农产品品牌营销工作中存在的主要问题,即缺少系统的营销策划;品牌与产品捆绑传播不够,品牌认知度低;缺乏创新意识,品牌宣传也难见成效;农产品标准化程度低,也缺乏从消费者需求角度进行营销的手段等。再次,以无锡阳山水蜜桃为例进行典型品牌营销案例分析,阐述其品牌营销策略及存在的问题,并从中得到以下启发:定制统一标准、评级考核;实施“母子品牌”战略;包装上加贴能够防伪、溯源的认证标志;优化营销渠道等。最后,提出乡村振兴背景下农产品品牌营销应实施储如强化品牌意识,转变营销观念;多渠道品牌营销;开发创新产品市场等措施。本研究结果为农产品品牌营销提供了建设性的建议,助力我国农业农村振兴。

关键词：乡村振兴农产品阳山水蜜桃品牌营销策略

Role of tissue factor in hepatocellular carcinoma genesis, invasion and metastasis

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Chinese Medical Journal 2011年第22期124卷 3746-3751页

作者： ZHOU Qi HUANG tao WANG ya-feng ZHOU Xiang-bing LIANG Li-jian PENG Bao-gang Department of Hepatobiliary Surgery First Affiliated Hospital of Sun Yat-Sen University Guangzhou Guangdong 510080 China

Background Numerous studies indicate that tissue factor （TF）, namely tissue thromboplastin, has a close relationship with malignant tumor genesis and progress. It contributes to blood coagulation as well as the regulation of cellular differentiation, the formation of blood vessels, and also tumor recurrence and metastasis. The present study aimed to detect TF expression in hepatocellular carcinoma （HCC） patients and to elucidate its association with prognosis and clinical features of the disease. Methods The plasma TF levels of 50 HCC patients and 30 controls were assayed by ELISA. The expressions of TF mRNA and protein in HCC tissues, adjacent tissues and normal tissues were detected by reverse transcription- polymerase chain reaction （RT-PCR） and Western blotting. The acquired data were analyzed with related clinic-pathological documents. The patients were followed up for five years, and the relationship between TF and prognosis was analyzed. Results The plasma TF levels were significantly increased in HCC compared to the controls （P 〈0.05）, presenting a close relationship with differentiation level, tumor size and hepatocirrhosis occurrence （P 〈0.05）. There were remarkably higher values in cases of lymphatic metastasis, extrahepatic metastasis and portal tumor thrombus （PTT）（P 〈0.05） compared to non-metastasis or non-tumor thrombus, but no significant difference with different focus number or envelope （P 〉0.05）. The positive rates and the relative expression of TF mRNA in HCC tissue were 63.0% （17/27） and 0.567±0.268, respectively, significantly higher than that in adjacent tissues or normal tissues （P 〈0.05）. In the patients with positive results, the relative expression intensity varied significantly with different tumor size and index of local invasion and metastasis （P 〈0.05）. The positive rates and the relative expression intensities of TF protein in HCC tissue were 74.1% （20/27） and 4.093±1.256, respectively, significantly higher than those in adjacent tis

关键词： hepatocellular carcinoma tissue factor invasion and metastasis

Development of 600MPa Cold Rolled Dual Phase Steel for Automotive Application in BX Steel

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Journal of Iron and Steel Research International 2011年第S1期18卷 987-989页

作者： GAO Hong-gang,CHEN Li-hong,LIU Ming-hui,YU Wen-tao,WANG ya-fen (Technology Center of Benxi Iron and Steel (Group) Co,Ltd.Benxi 117000,Liaoning,China) Benxi Iron & Steel Grp Co Ltd Ctr Technol Benxi 117000 Liaoning Peoples R China

BX STEEL has developed 600MPa cold rolled dual phase in order to adapt to the market *** paper introduces the design of chemical composition,hot rolling,cold rolling and annealing process of experimental *** finished product property meets the technical standard,the microstructure is typical dual phase,F+M(14-16%).This product has been produced commercially in BX STEEL,and has been approved by end users.

关键词： automotive application dual phase microstructure

Transcription and Epigenetics Dynamics at Hypermethylated Genes in carcinogenesis

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Transcription and Epigenetics Dynamics at Hypermethylated Ge...

Emerging multimodal memristors for biorealistic neuromorphic applications

中国病理生理学会第十三届肿瘤、第十四届免疫专业委员会学术会议

作者： Yongguang tao,ya Cao Cancer Research Institute,Central South University

Inactivation of tumor suppressor genes plays an important role in tumorigenesis,and epigenetic modifications such as DNA methylation are frequently associated with transcriptional ***,we show that gene silencing at selected genes with signs of DNA hypermethylation in breast cancer cells involves RNA Polyermaser II *** studied several repressed genes with DNA hypermethylation within a region 1-kb upstream of the transcriptional start site that were upregulated after treatment with DNA demethylating agents,such as Azacytidine and several natural *** those selected genes had stalled Pol II at their transcriptional start site and showed enhanced ser2 phosphorylated Pol II and elevated transcripts after drug treatment indicating successful *** addition,a decrease of the epigenetic regulator LSH in a breast cancer cell line by siRNA treatment reduced DNA methylation and overcame Pol II stalling,whereas overexpression of LSH in a normal breast epithelial cell line increased DNA methylation and resulted in *** of LSH was associated with reduced DNMT3b binding to promoter sequences,and depletion of DNMT3b by siRNA could release Pol II suggesting that DNMT3b is functionally involved.A dynamic switch accompanied the release of paused Pol II from repressive to active chromatin marks. Thus release of Pol II stalling can act as a mechanism for gene reactivation at specific target genes after DN A demethylating treatment in cancer cells.

关键词： LSH Transcription and Epigenetics Dynamics at Hypermethylated Genes in carcinogenesis

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Materials Futures 2024年第1期3卷 128-141页

作者： Xuanyu Shan ya Lin Zhongqiang Wang Xiaoning Zhao Ye tao Haiyang Xu Yichun Liu Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education Northeast Normal UniversityChangchunPeople’s Republic of China

The integration of sensory information from different modalities,such as touch and vision,is essential for organisms to perform behavioral functions such as decision-making,learning,and *** implementation of human multi-sensory perception using electronic supports is of great significance for achieving efficient human–machine *** to their structural and functional similarity with biological synapses,memristors are emerging as promising nanodevices for developing artificial neuromorphic *** devices can sense multidimensional signals including light,pressure,and *** in-sensor computing architecture represents an ideal platform for efficient multimodal *** review recent progress in multimodal memristive technology and its application to neuromorphic perception of complex stimuli carrying visual,olfactory,auditory,and tactile *** the device level,the operation model and undergoing mechanism have also been ***,we discuss the challenges and prospects associated with this rapidly progressing field of research.

关键词： multimodal memristor neuromorphic perception in-sensor computing

A Cleaved Amplified Polymorphic Sequence Marker to Detect Variation in Wx Locus Conditioning Translucent Endosperm in Rice

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Rice science 2009年第2期16卷 106-110页

作者： CHEN tao ZHANG ya-dong ZHAO Ling ZHU Zhen LIN Jing ZHANG Suo-bing WANG Cai-lin Institute of Food Crops Jiangsu Academy of Agricultural Sciences Jiangsu High Quality Rice R ＆ D Center Nanjing 210014 China

The translucent endosperm trait in a japonica rice variety ＇Kantou 194＇ is controlled by a Wx-mq gene which is allelic to Wx locus by genetic analysis and allelic test. The amylose content analysis showed that an intermediate amylose content between those of glutinous and non-glutinous rice existed in endosperm of homozygous Wx-mq genotype. The slight changes of amylose content in different varieties and F1 grains with an identical Wx-mq genotype might be influenced by dissimilar genetic background. To identify the Wx-mq genotype simply and rapidly, a cleaved amplified polymorphic sequence （CAPS） marker was designed. The result from the molecular detection indicated that it could be used for marker-assisted selection for low amylose content varieties in rice breeding.

关键词： rice amylose content translucent endosperm mutant waxy gene molecular marker-assisted selection cleaved amplified polymorphic sequence marker

Bladder Bleeding Due to Placenta Percreta:Report of Four Cases and Management Discussion

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Maternal-Fetal Medicine 2021年第4期3卷 285-291页

作者： Huidan Zhao Xianlan Zhao Chuanna Liu ya tao yan Zhou Department of Obstetrics The First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan 450052China Obstetric Emergency and Critical Care Medicine of Henan Province ZhengzhouHenan 450052China

Placenta percreta with bladder bleeding can occur during gestation or postpartum,posing a great threat to both mother and *** it is rare and lacks standard management *** reported four cases suffering from bladder bleeding caused by placenta percreta even with hemorrhagic shock admitted between January 1^(st),2011 and December 31^(th),2020 in The First Affiliated Hospital of Zhengzhou *** information,including age,gravidity and parity,ultrasound and magnetic resonance imaging manifestations,onset gestational age,bladder bleeding volume,clinical manifestations under bleeding,diagnosis,hemostatic methods,hospital stay,treatment cost,and prognosis,are *** cases had bladder bleeding during the second trimester,respectively on the 22^(+3)and 23^(+5)*** was terminated *** other two cases had bladder bleeding on the 2nd day post near-term cesarean section when *** the four cases achieved successful hemostasis following angiography and concomitant embolization for iliac vessels,and one of them received electrocoagulation hemostasis under cystoscopy,but *** all had favorable clinical outcomes and had no long-term *** neonatal outcome in the two cases that bladder hemorrhage occurred after near-term c-section was *** newborns did not survive in two cases in which bladder hemorrhage occurred at the second trimester of *** termination of pregnancy is recommended when such a condition develops during *** of bladder bleeding is relatively easy,for it is characterized by fast speed and large volume,with concomitant distension of the lower abdomen,blood discharge from the urethral orifice,or the indwelling *** embolization is an effective means to treat bladder bleeding caused by placenta percreta,while electrocoagulation hemostasis under cystoscopy must be applied with great *** the pregnant women with a high risk of placenta per

关键词： Placenta accreta Placenta percreta Bladder hemorrhage Early diagnosis

ρ-meson longitudinal leading-twist distribution amplitude revisited and the D→ρsemileptonic decay

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Chinese Physics C 2024年第6期48卷 82-91页

作者：钟涛代亚红付海冰 Department of Physics Guizhou Minzu UniversityGuiyang 550025China

Motivated by our previous study[***.D 104(1),016021(2021)]on the pionic leading-twist distribution amplitude(DA),we revisit theρ-me son leading-twist longitudinal DAφ_(2;ρ)^(‖)(x,μ)in this study.A model proposed by Chang based on the DYyson-Schwinger equations is adopted to describe the behavior ofφ_(2;ρ)^(‖)(x,μ).However,theξ-moments ofφ_(2;ρ)^(‖)(x,μ)are calculated with the QCD sum rules in the framework of the background field *** sum rule formulas for these moments are *** accurate values for the first five nonzeroξ-moments at the typical scaleμ=(1.0,1.4,2.0,3.0)GeV are given,e.g.,atμ=1 GeV,(ξ^(2))>_(2;ρ)^(‖)=0.220(6),(ξ^(4))>_(2;ρ)^(‖)=0.103(4),(ξ^(6))>_(2;ρ)^(‖)=0.066(5),(ξ^(8))>_(2;ρ)^(‖)=0.046(4),and(ξ^(10))>_(2;ρ)^(‖)=0.035(3).By fitting these values with the least squares method,the DSE model forφ_(2;ρ)(x,μ)is *** taking the left-handed current light-cone sum rule approach,we obtain the transition form factor in the large recoil region,i.e.,A_(1)(0)=0.498_(-0.012)^(+0.014),A_(2)(0)=0.460_(-0.047)^(+0.055),and V(0)=0.800_(-0.014)^(+0.015),and the ratio r_(2)=0.923_(-0.119)^(+0.133),rV=1.607_(-0.071)^(+0.071).After extrapolating with a rapidly converging series based on z(t)-expansion,we present the|V_(cd)|-independent decay width for the semileptonic decays D→ρ^(l+)v_(l).Finally,the branching fractions are B(D^(0)→ρ^(-)e+v_(e))=1.825_(-0.162)^(+0.170)±0.004,B(D^(+)→ρ^(0)e+v_(e))=2.299_(-0.204)^(+0.214)±0.011,B(D^(0)→ρ^(-)μ^(+)v_(μ))=1.816_(-0.160)^(+0.168)±0.004,and B(D^(+)→ρ^(0)μ+v_(μ))=2.288_(-0.201)^(+0.212)±0.011.

关键词： QCD sum rule charmed meson semileptonic decay Rho meson light-cone distribution amplitude