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SnO_(2)/metal organic complex composite derived from low-temperature activated metal organic complex for advanced lithium storage

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Rare Metals 2024年第7期43卷 3032-3043页

作者： Gui-Long Liu Zi-Han Zhao Jin-Ke Shen Zi-Bo Zhao Nai-Teng wu Dong-Lei Guo Wei-Wei Yuan Yong Liu Ye-hua Su Xian-Ming Liu Luoyang Key Laboratory of Green Energy Materials College of Chemistry and Chemical EngineeringLuoyang Normal UniversityLuoyang 471934China School of Materials Science and Engineering Henan University of Science and TechnologyLuoyang 471023China Inner Mongolia Shijie Chemical Co. Ltd.Alxa League 737300

Sn-based metal organic complexes with coordination bonds,multi-active sites,and high theoretical capacity have attracted much attention as promising anodes for lithium ion ***,the low electrical conductivity and huge volume changes restricted their electrochemical stability and practical ***,Snbased anode with superior electrochemical performance,including a high reversible capacity of 1050.1 mAh·g^(-1)at 2 A·g^(-1)and a stable capacity of 1105.5 mAh·g^(-1)after 500 cycles at 1 A·g^(-1),was fabricated via a low-temperature calcination strategy from Sn metal organic *** low-temperature calcination process regulates Sn-O bond and prevents the agglomeration of SnO_(2),generating highly dispersed SnO_(2) decorated metal organic complexes and providing sufficient active sites for ion *** situ characterizations expound that the undecomposed Sn-based metal organic complexes could be transformed into SnO_(2) during lithiation and delithiation,which enhances the electrical conductivity and induces a strong pseudo-capacitive behavior,accelerating the electrochemical kinetics;the multiple solid electrolyte interface with inflexible LiF and flexible ROCO_(2)Li buffers the volume variation of the electrode,resulting in its high electrochemical *** work provides a simple strategy for preparing excellent Sn-based anodes from metal organic complexes and reveals the lithium storage mechanism of the prepared Snbased anode.

关键词： Metal organic complex Lithium ion battery Electrochemical activation Low-temperature activation Partial decomposition

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Regulative Function of Low Molecular Chitosan on Blood Sugar in Experimental Diabetic Rats

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生物医学工程学杂志 2005年第S1期22卷 167-168页

作者： hua-Bing YANG Yong wu (Department of Preclinical Medicine, Hubei College of Traditional Chinese Medicine, wuhan 430061,China) Department of Preclinical Medicine Hubei College of Traditional Chinese Medicine Wuhan 430061 China

1 IntroductionChitosan has good action on reducing blood sugar with low poisonous side-effect. Low molecular chitosan(LMC) is the oxide of high molecular chitosan, which has water-solubility and the function of lowering blood sugar of diabetic rats. In this experiment, STZ was adopted to duplicate the model rats of Type Ⅱ diabetes mellitus, the regulative function of LMC on Type Ⅱ diabetic blood sugar was observed for further inquiry into its functionary mechanism.

关键词： STZ Regulative Function of Low Molecular Chitosan on Blood Sugar in Experimental Diabetic Rats

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Development and validation of a deep learning model to screen hypokalemia from electrocardiogram in emergency patients

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Chinese Medical Journal 2021年第19期134卷 2333-2339页

作者： Chen-Xi Wang Yi-Chu Zhang Qi-Lin Kong Zu-Xiang wu Ping-Ping Yang Cai-hua Zhu Shou-Lin Chen Tao wu Qing-hua wu Qi Chen Department of Cardiovascular Medicine The Second Affiliated Hospital of Nanchang UniversityNanchang University School of MedicineNanchangJiangxi 330006China Department of Anesthesiology The Second Affiliated Hospital of Nanchang UniversityNanchang University School of MedicineNanchangJiangxi 330006China

Background:A deep learning model(DLM)that enables non-invasive hypokalemia screening from an electrocardiogram(ECG)may improve the detection of this life-threatening *** study aimed to develop and evaluate the performance of a DLM for the detection of hypokalemia from the ECGs of emergency ***:We used a total of 9908 ECG data from emergency patients who were admitted at the Second Affiliated Hospital of Nanchang University,Jiangxi,China,from September 2017 to October *** DLM was trained using 12 ECG leads(lead Ⅰ,Ⅱ,Ⅲ,aVR,aVL,aVF,and V1–6)to detect patients with serum potassium concentrations<3.5 mmol/L and was validated using retrospective data from the Jiangling branch of the Second Affiliated Hospital of Nanchang *** blood draw was completed within 10 min before and after the ECG examination,and there was no new or ongoing infusion during this ***:We used 6904 ECGs and 1726 ECGs as development and internal validation data sets,*** addition,1278 ECGs from the Jiangling branch of the Second Affiliated Hospital of Nanchang University were used as external validation data *** 12 ECG leads(leads Ⅰ,Ⅱ,Ⅲ,aVR,aVL,aVF,and V1–6),the area under the receiver operating characteristic curve(AUC)of the DLM was 0.80(95%confidence interval[CI]:0.77–0.82)for the internal validation data *** an optimal operating point yielded a sensitivity of 71.4%and a specificity of 77.1%.Using the same 12 ECG leads,the external validation data set resulted in an AUC for the DLM of 0.77(95%CI:0.75–0.79).Using an optimal operating point yielded a sensitivity of 70.0%and a specificity of 69.1%.Conclusions:In this study,using 12 ECG leads,a DLM detected hypokalemia in emergency patients with an AUC of 0.77 to *** intelligence could be used to analyze an ECG to quickly screen for hypokalemia.

关键词： Deep learning Hypokalemia Electrocardiogram Artificial intelligence

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Balancing electron transfer and intermediate adsorption ability of metallic Ni-Fe-RE-P bifunctional catalysts via 4f-2p-3d electron interaction for enhanced water splitting

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Journal of Energy Chemistry 2024年第7期94卷 458-465页

作者： hong-Rui Zhao Cheng-Zong Yuan Chenliang Zhou Wenkai Zhao Lunliang Zhang Cong-Hui Li Lei Xin Fuling wu Shufeng Ye Xiaomeng Zhang Yunfa Chen School of Rare Earths University of Science and Technology of ChinaHefei 230026AnhuiChina Jiangxi Province Research Institute of Rare Earths Ganjiang Innovation AcademyChinese Academy of SciencesGanzhou 341119JiangxiChina State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China

Balancing electron transfer and intermediate adsorption ability of bifunctional catalysts via tailoring electronic structures is crucial for green hydrogen production,while it still remains challenging due to lacking efficient ***,one efficient and universal strategy is developed to greatly regulate electronic structures of the metallic Ni-Fe-P catalysts via in-situ introducing the rare earth(RE)atoms(Ni-Fe-RE-P,RE=La,Ce,Pr,and Nd).Accordingly,the as-prepared optimal Ni-Fe-Ce-P/CC self-supported bifunctional electrodes exhibited superior electrocatalytic activity and excellent stability with the low overpotentials of 247 and 331 mV at 100 mA cm^(-2) for HER and OER,*** the assembled electrolyzer,the Ni-Fe-Ce-P/CC as bifunctional electrodes displayed low operation potential of 1.49 V to achieve a current density of 10 mA cm^(-2),and the catalytic performance can be maintained for 100 *** results combined with density functional theory(DFT)calculation reveal that Ce doping leads to electron decentralization and crystal structure distortion,which can tailor the band structures and d-band center of Ni-Fe-P,further increasing conductivity and optimizing intermediate adsorption *** work not only proposes a valuable strategy to regulate the electron transfer and intermediate adsorption of electrocatalysts via RE atoms doping,but also provides a deep under-standing of regulation mechanism of metallic electrocatalysts for enhanced water splitting.

关键词： RE atoms Electron transfer Adsorption energy Oxygen evolution Hydrogen evolution

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The Dynamic Pollen Tube Cytoskeleton： Live Cell Studies Using Actin-Binding and Microtubule- Binding Reporter Proteins

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Molecular Plant 2008年第4期1卷 686-702页

作者： Alice Y. Cheung Qiao-hong Duan Silvia Santos Costa Barend H.J. de Graaf Veronica S. DiStilio Jose Feijo Hen-Ming wu Department of Biochemistry and Molecular Biology Molecular Cell Biology Program Plant Biology Graduate Program University of Massachusetts Lederle Graduate Research Tower Amherst MA 01003 USA Instituto Gulbenkian de Ciencia Centro de Biologia de Desenvolvimento PT-2780-156 Oeiras Portugal Universidale de Lisboa Faculdade de Ciencias Dept. Biologia Vegetal Campo Grande Ed.C2. PT-1749-016 Lisboa Portugal Present address: School of Biosciences University of Birmingham Edgbaston B15 2TT UK Present address: Department of Biology University of Washington Box 351800 Seattle WA 98195 USA

Pollen tubes elongate within the pistil to transport sperm cells to the embryo sac for fertilization. Growth occurs exclusively at the tube apex, rendering pollen tube elongation a most dramatic polar cell growth process. A hall- mark pollen tube feature is its cytoskeleton, which comprises elaborately organized and dynamic actin microfilaments and microtubules. Pollen tube growth is dependent on the actin cytoskeleton; its organization and regulation have been examined extensively by various approaches, including fluorescent protein labeled actin-binding proteins in live cell studies. Using the previously described GFP-NtADF1 and GFP-LIADF1, and a new actin reporter protein NtPLIM2b-GFP, we re-affirm that the predominant actin structures in elongating tobacco and lily pollen tubes are long, streaming actin cables along the pollen tube shank, and a subapical structure comprising shorter actin cables. The subapical collection of actin microfilaments undergoes dynamic changes, giving rise to the appearance of structures that range from basket- or funnel-shaped, mesh-like to a subtle ring. NtPLIM2b-GFP is used in combination with a guanine nucleotide exchange factor for the Rho GTPases, AtROP-GEF1, to illustrate the use of these actin reporter proteins to explore the linkage between the polar cell growth process and its actin cytoskeleton. Contrary to the actin cytoskeleton, microtubules appear not to play a direct role in supporting the polar cell growth process in angiosperm pollen tubes. Using a microtubule reporter protein based on the microtubule end-binding protein from Arabidopsis AtEB1, GFP-AtEB1, we show that the extensive microtubule network in elongating pollen tubes displays varying degrees of dynamics. These reporter proteins provide versatile tools to explore the functional connection between major structural and signaling components of the polar pollen tube growth process.

关键词： Dynamic Pollen Tube Cytoskeleton Live Cell Studies Using Actin-Binding Microtubule-Binding Reporter Proteins

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Aligned 3D porous polyurethane scaffolds for biological anisotropic tissue regeneration

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Regenerative Biomaterials 2020年第1期7卷 19-27页

作者： Weiwei Lin Wanling Lan Yingke wu Daiguo Zhao Yanchao Wang Xueling He Jiehua Li Zhen Li Feng Luo hong Tan Qiang Fu College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China Sichuan Institute for Food and Drug Control Chengdu 611731China Department of Neurosurgery West China Hospital Sichuan UniversityChengdu 610065China Laboratory Animal Center of Sichuan University Chengdu 610041China

A green fabrication process(organic solvent-free)of artificial scaffolds is required in tissue engineering *** this work,a series of aligned three-dimensional(3D)scaffolds are made from biodegradable waterborne polyurethane(PU)emulsion via directional freeze–drying method to ensure no organic *** optimizing the concentration of polymer in the emulsion and investigating different freezing temperatures,an aligned PUs scaffold(PU14)generated from 14wt%polymer content and processed at196C was selected based on the desired oriented porous structure(pore size of 32.569.3 lm,porosity of 92%)and balanced mechanical properties both in the horizontal direction(strength of 41.3 kPa,modulus of 72.3 kPa)and in the vertical direction(strength of 45.5 kPa,modulus of 139.3 kPa).The response of L929 cells and the regeneration of muscle tissue demonstrated that such pure material-based aligned 3D scaffold can facilitate the development of orientated cells and anisotropic tissue regeneration both in vitro and in ***,these pure material-based scaffolds with ordered architecture have great potentials in tissue engineering for biological anisotropic tissue regeneration,such as muscle,nerve,spinal cord and so on.

关键词： polyurethane aligned scaffolds tissue engineering anisotropic regeneration

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Coexpression of TLR9 and VEGF-C is associated with lymphatic metastasis in prostate cancer

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Asian Journal of Andrology 2022年第4期24卷 380-385页

作者： Xian-Zi Zeng Zhan-Sen huang hong-Peng Fang Jie-Ying wu Qun-Xiong huang Chu-Bin Zhuang Jing Zhou Jin-Ming Di Department of Urology The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510630China Department of Infertility and Sexual Medicine The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510630China Department of Pathology The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510630China

Prostate cancer(PCa)is one of the most frequent cancers in men,and its biomolecular targets have been extensively *** study aimed to analyze the expression of toll-like receptor 9(TLR9)and vascular endothelial growth factor C(VEGF-C)and the clinical value of the coexpression of TLR9 and VEGF-C in *** retrospectively evaluated 55 patients with clinically localized,intermediate-risk,or high-risk PCa who underwent laparoscopic radical prostatectomy(LRP)and extended pelvic lymph node dissection(ePLND)without neoadjuvant hormonal therapy at a single institution from June 2013 to December *** all 55 patients,the median number of lymph nodes(LNs)resected was 23(range:18-31),and a total of 1269 LNs were removed,of which 78 LNs were *** patients had positive LNs,with a positive rate of 30.9%.In addition,the immunohistochemical results in the above patients revealed that high TLR9 expression was correlated with higher Gleason score(GS)(P=0.049),increased LN metastasis(P=0.004),and more perineural invasion(PNI)(P=0.033).Moreover,VEGF-C expression was associated with GS(P=0.040),pathological stage(pT stage)(P=0.022),LN metastasis(P=0.003),and PNI(P=0.001).Furthermore,a significant positive correlation between TLR9 and VEGF-C was found(P<0.001),and the TLR9/VEGF-C phenotype was associated with LN metastasis(P=0.047).Collectively,we propose that TLR9 stimulation may promote LN metastasis in PCa cells through the upregulation of VEGF-C expression,thereby affecting the prognosis of PCa ***,these markers may serve as valuable targets for the treatment of PCa.

关键词： biochemical progression-free survival coexpression lymphatic metastasis prostate cancer toll-like receptor 9 vascular endothelial growth factor C

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On Ordinary Words of Standard Reed-Solomon Codes over Finite Fields

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Algebra Colloquium 2021年第4期28卷 569-580页

作者： Xiaofan Xu Shaofang hong Mathematical College Sichuan UniversityChengdu 610064China Department of Mathematics Sichuan Tourism UniversityChengdu 610100China

Reed-Solomon codes are widely used to establish a reliable channel to transmit information in digital communication which has a strong error correction capability and a variety of efficient decoding *** we use the maximum likelihood decoding(MLD)algorithm in the decoding process of Reed-Solomon *** algorithm relies on determining the error distance of received word.Dür,Guruswami,Wan,Li,hong,wu,Yue and Zhu et *** some results on the error *** the Reed-Solomon code C,the received word u is called an ordinary word of C if the error distance d(u,C)=n-deg u(x)with u(x)being the Lagrange interpolation polynomial of *** introduce a new method of studying the ordinary *** fact,we make use of the result obtained by *** and *** on the decomposition of certain polynomials over the finite field to determine all the ordinary words of the standard Reed-Solomon codes over the finite field of q *** completely answers an open problem raised by Li and Wan in[On the subset sum problem over finite fields,Finite Fields Appl.14(2008)911-929].

关键词： Reed-Solomon code ordinary word Lagrange interpolation polynomial finite field

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Assessment of the Spatial and Temporal Water Eutrophication for Lake Baiyangdian Based on Integrated Fuzzy Method

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Journal of Environmental Protection 2013年第1期4卷 120-125页

作者： Shuxuan Liang hong wu hongbo Li Yihong wu College of Chemistry and Environmental Science Hebei University Baoding China Hebei Provincial Academy of Environmental Science Shijiazhuan China

Water quality evaluation entails both randomness and fuzziness. Considering that water eutrophication evaluation involves many indices, different classifications and interval values, fuzzy variable sets theory was developed to Lake Baiyangdian as a study case. Taking reference to eutrophication standard of Chinese lakes and local characteristic of Lake Baiyangdian, eutrophication degree of lake was divided into 8 levels. Total phosphorus, total nitrogen, and CODMn were selected as evaluation indices in this research. Based on the measured data, index feature value matrix of sample was built. Index weights were determined by means of pure threshold value method. Relative membership degree of each index to each classification was calculated with relative difference function model. Then the stability of feature value of classification corresponding was received by the comprehensive calculation with the relative membership degree and index weights. The results show that the proposed models are effective tools for generating a set of realistic and flexible optimal solutions for complicated water quality evaluation issues. It concluded that the model was reasonable and practical.

关键词： Eutrophication Evaluation Fuzzy Method Spatial Variation Temporal Variation Lake Baiyangdian

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Ginsenoside metabolite compound K alleviate collegen-induced arthritis through impairing dendritic cells function

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中国药理学与毒理学杂志 2017年第10期31卷 986-987页

作者： Jing-yu CHEN hua-xun wu Qing-tong WANG Yan CHANG Kang-kang LIU Wei WEI Institute of Clinical Pharmacology Anhui Medical UniversityKey Laboratory of Anti-inflammatory and Immune MedicineMinistry of EducationAnhui Collaborative Innovation Center of Anti-inflammatory and Immune Medicine

OBJECTIVE Ginsenoside metabolite compound K(CK)is a degradation product of ginsenoside in the intestine by *** anti-inflammatory and immunomodulatory activities of CK have been *** study investigated whether CK exerted its immunoregulatory effect through modulation of dendritic cells(DCs)*** In vivo,severity of collegen-induced arthritis(CIA),T cells and DCs subsets,phenotype of DC were assayed by flow cytometry,CCL19 and CCL21 level in lymph nodes assayed by *** vitro,bone marrow-derived DCs from normal mice were matured with lipopolysaccharide and treated with CK for 48 *** vivo,bone marrow-derived DCs were generated from CIA mice before and 2 weeks into CK *** were analyzed for migration,phenotype and T-cell stimulatory *** CK alleviated the severity of CIA,decreased pD Cs and mo-DCs,increased na?ve T cells in CIA mice lymph nodes,and suppressed CCL21 expression in lymph *** suppressed DCs migration induced by CCL21 and T cells-stimulatory capability of DC,down-regulated LPS-induced expression of CD80,CD86,MHCII and CCR7 on *** This study elucidated the novel immunomodulatory property of CK via impairing function of DCs in priming T cells *** results provide an interesting novel insight into the potential mechanism by which CK contribute to the restoration of immunoregulation in autoimmune conditions.

关键词： ginsenoside metabolite compound K dendritic cells T cells collegen-induced arthritis

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