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Unraveling the Role of Nitrogen-Doped Carbon Nanowires Incorporated with MnO_(2)Nanosheets as High Performance Cathode for Zinc-Ion Batteries

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Energy & Environmental Materials 2023年第3期6卷 205-213页

作者： Xiaohui Li Qiancheng Zhou Ze Yang Xing Zhou dan qiu Huajun qiu Xintang Huang Ying Yu Institute of Nanoscience and Technology College of Physical Science and TechnologyCentral China Normal UniversityWuhan 430079China State Key Laboratory of Advanced Technology for Materials Synthesis and processing Wuhan University of Technology Wuhan 430070China

Manganese-based cathode materials are considered as a promising candidate for rechargeable aqueous zinc-ion batteries(ZIBs).Suffering from poor conductive and limited structure tolerance,various carbon matrix,especially N-doped carbon,were employed to incorporate with MnO_(2)for greatly promoted electrochemical ***,the related underlying mechanism is still unknown,which is unfavorable to guide the design of high performance ***,by incorporating layered MnO_(2)with N-doped carbon nanowires,a free-standing cathode with hierarchical core-shell structure(denoted as MnO_(2)@NC)is *** from the N-doped carbon and rational architecture,the MnO_(2)@NC electrode shows an enhanced specific capacity(325 mAh g^(−1)at 0.1 A g^(−1))and rate performance(90 mAh g^(−1)at 2 A g^(−1)),as well as improved cycling ***,the performance improvement mechanism of MnO_(2)incorporated by N-doped carbon is investigated by X-ray photoelectron spectroscopy(XPS),Raman spectrums and density functional theory(DFT)*** N atom elongates the Mn-O bond and reduces the valence of Mn^(4+)ion in MnO_(2)crystal by delocalizing its electron ***,the electrostatic repulsion will be weakened when Zn^(2+)/H^(+)insert into the host MnO_(2)lattices,which is profitable to more cation insertion and faster ion transfer kinetics for higher capacity and rate *** work elucidates a fundamental understanding of the functions of N-doped carbon in composite materials and shed light on a practical pathway to optimize other electrode materials.

关键词： core-shell nanostructure MnO_(2)nanosheets N-doped carbon Zn ion batteries

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Carbon enhanced nucleophilicity of Na_(3)V_(2)(PO_(4))_(3):A general approach for dendrite-free zinc metal anodes

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Journal of Energy Chemistry 2024年第4期91卷 203-212页

作者： Sijun Wang Lingzi Hu Xiaohui Li dan qiu Shunhang qiu Qiancheng Zhou Wenwen Deng Xiaoying Lu Ze Yang Ming qiu Ying Yu Institute of Nanoscience and Nanotechnology School of Physical Science and TechnologyCentral China Normal UniversityWuhan 430079HubeiChina School of Material Science and Engineering Suzhou University of Science and TechnologySuzhou 215000JiangsuChina Faculty of Science and Technology Technological and Higher Education Institute of Hong KongHong KongChina

Zincophilic property and high electrical conductivity are both very important parameters to design novel Zn anode for aqueous Zn-ion batteries(AZIBs).However,single material is difficult to exhibit zincophilic property and high electrical conductivity at the same ***,originating from theoretical calculation,a zincophilic particle regulation strategy is proposed to address these limitations and carbon coated Na_(3)V_(2)(PO_(4))_(3)is taken as an example to be a protective layer on zinc metal(NVPC@Zn).Na_(3)V_(2)(PO_(4))_(3)(NVP)is a common cathode material for Zn-ion batteries,which is *** materials not only offer an electron pathway to help Zn deposition onto NVPC surface,but also enhance the zinc nucleophilicity of Na_(3)V_(2)(PO_(4))_(3).Hence,this hybrid coating layer can tune zinc deposition and resist side reactions such as hydrogen generation and Zn metal ***,a symmetrical battery with NVPC@Zn electrode displays highly reversible plating/stripping behavior with a long cycle lifespan over 1800 h at2 mA cm^(-2),much better than carbon and Na_(3)V_(2)(PO_(4))_(3)solely modified Zn *** the Na_(3)V_(2)(PO_(4))_(3)is replaced with zincophobic Al2O3or zincophilic V2O3,the stability of the modified zinc anodes is also *** strategy expands the option of zincophilic materials and provides a general and effective way to stabilize the Zn electrode.

关键词： Zinc-ion batteries Zinc anode Carbon enhanced nucleophilicity Zincophilic particle regulation

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Atmospheric Parameters and Kinematic Information for the M Giant Stars from LAMOST DR9

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Research in Astronomy and Astrophysics 2023年第5期23卷 78-90页

作者： dan qiu Hao Tian Jing Li Chao Liu Lin Long Jian-Rong Shi Ming Yang Bo Zhang Key Laboratory of Space Astronomy and Technology National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences 100049China Institute for Frontiers in Astronomy and Astrophysics Beijing Normal UniversityBeijing 102206China School of Physics and Astronomy China West Normal UniversityNanchong 637002China Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China

A catalog of more than 43,000 M giant stars has been selected by Li et *** the ninth data release of *** the data-driven method SLAM,we obtain the stellar parameters(T_(eff),logg,[M/H],[α/M])for all the M giant stars with uncertainties of 57 K,0.25 dex,0.16 dex and 0.06 dex at SNR>100,*** those stellar parameters,we constrain the absolute magnitude in the K-band,which brings distance with relative uncertainties around 25%*** velocities are also calculated by applying cross correlation on the spectra between 8000 and 8950?with synthetic spectra from ATLAS9,which covers the CaⅡ*** between our radial velocities and those from APOGEE DR17 and Gaia DR3 shows that our radial velocities have a system offset and dispersion around 1 and 4.6 km s^(-1),*** the distances and radial velocities combining with the astrometric data from Gaia DR3,we calculate the full 6D position and velocity information,which are able to be used for further chemo-dynamic studies on the disk and substructures in the halo,especially the Sagittarius Stream.

关键词： methods data analysis-stars atmospheres-Galaxy disk-stars abundances

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One-pot synthesis of 7-bromo-1-[4-(1-cyano-1-methylethyl)]-phenyl-[1,2,4]-triazole-[4,3-a]-quinoxalin

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Chinese Chemical Letters 2009年第1期20卷 52-54页

作者： Yan Yang Hong Gang Hu Qing Jie Zhao Shi Chong Yu Zhi Gang dan Yan Zou qiu Ye Wu Department of Organic Chemistry School of Pharmacy Second Military Medical University Shanghai 200433 China

[1,2,4]-Triazole-[4,3-a]-quinoxaline is an important component of many drugs. The yield of the reported methods for triazole cyclization step was usually as low as 20%. In this article, the triazole cyclization step w... 详细信息

关键词： -Triazole-[4,3-a]-quinoxaline Microwave Synthesis

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Level 2 Automatic Control System of LF

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Journal of Iron and Steel Research International 2011年第S2期18卷 172-175页

作者： LIU dan-mei, qiu Cheng-guo, LIAO Hui ( Beijing Shougang Automation Information Technology Company, Beijing 100041, China ) Beijing Shougang Automat Informat Technol Co Beijing 100041 Peoples R China

Research on level 2 control system of 100 tons LF furnace was carried out. According to the principle of energy conservation and principle of mass conservation, the LF temperature prediction model and the composition prediction model were established. At the same time, the set value calculated by heating model and addition model could be sent to PLC. The results show that the technical indexes of LF furnace level 2 control system reach the demand and the system realizes automatic control.

关键词： ladle furnace mathematical model level 2 control system

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Pm21, Encoding a Typical CC-NBS-LRR Protein, Confers Broad-Spectrum Resistance to Wheat Powdery Mildew Disease

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Molecular Plant 2018年第6期11卷 879-882页

作者： Huagang He Shanying Zhu Renhui Zhao Zhengning Jiang Yaoyong Ji Jian Ji dan qiu Hongjie Li Tongde Bie School of Food and Biological Engineering Jiangsu University Zhenjiang Jiangsu 212013 China School of Environment Jiangsu University Zhenjiang Jiangsu 2120131 China Key Laboratory of Wheat Biology and Genetic Improvement on Low & Middle Yangtze River Valley Wheat Region (Ministry of Agriculture) Yangzhou Academy of Agricultural Sciences Yangzhou Jiangsu 225007 China National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI) Institute of Crop Science Chinese Academy of Agricultural Sciences Beijing 100081 China

Dear Editor, Common wheat （Triticum aestivum, 2n = 6x = 42, AABBDD） is one of the most widely cultivated cereal crops, providing -20% of the calories consumed by humans （Fu et al., 2009）. However, wheat production is constantly challenged by powdery mildew disease, which occurs globally and is caused by the biotrophic fungal pathogen Blumena graminis f. sp. tritici （Bgt）. Utilization of powdery mildew resistance （Pm） genes is the most effective and economical way to control powdery mildew disease.

关键词： Pm21 疾病蛋白质小麦粉编码用途普通小麦小麦生产

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Successful pregnancy and birth after intrauterine insemination using caput epididymal sperm by percutaneous aspiration

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Asian Journal of Andrology 2003年第1期5卷 73-75页

作者： Yi qiu, dan-Tong YANG, Su-Mei WANG, Hui-Qing SUN, Yi-Fang JIA Shandong Institute for Family Planning Research, Jinan 250002, China Shandong Institute for Family Planning Research Jinan 250002 China. qiuyimail@***

Aim: To manage male infertility with obstructive azoospermia by means of percutaneous epididymal sperm aspiration (PESA) and intrauterine insemination (IUI). Methods: Ninety azoospermic patients with congenital bilateral absence of the vas deferens (BAVD, n=58) or bilateral caudal epididymal obstruction (BCEO, n=32) requesting for fine needle aspiration (FNA), PESA and IUI were recruited. The obstruction was diagnosed by vasography and determination of the fructose, carnitine and alpha-glucosidase levels in the seminal fluid. Results: The mean sperm motility, density, abnormal sperm and total sperm count of the caput epdidymis were 16 %±22 %, (12±31) ×106/mL, 55 %±36 % and (16±14)×106, respectively. In the 90 couples, a total of 74 PESA procedures and 66 cycles of IUI were performed. Three pregnancies resulted, including one twin pregnancy giving birth to two healthy boys, one single pregnancy with a healthy girl and another single pregnancy aborted at week 6 of conception. The pregnancy rate per IUI cycle was 4.5 %. Conclusion: The birth of normal, healthy infants by IUI using PESA indicates that the caput epididymal sperm possess fertilization capacity. The PESA-IUI programme is a practical and economical procedure for the management of patients with obstructive azoospermia.

关键词： percutaneous epididymal sperm aspiration intrauterine insemination obstructive azoospermia caput epididymis, fertilization

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Renoprotection Provided by Dipeptidyl Peptidase-4 Inhibitors in Combination with Angiotensin Receptor Blockers in Patients with Type 2 Diabetic Nephropathy

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Chinese Medical Journal 2018年第22期131卷 2658-2665页

作者： dan-dan qiu Jing Liu Jing-Song Shi Yu An Yong-Chun Ge Min-Lin Zhou Song Jiang National Clinical Research Center of Kidney Diseases Jinling HospitalNanjing University School of MedicineNanjingJiangsu 210002China Research Institute of Nephrology Jinling HospitalNanjing University School of MedicineNanjingJiangsu 210002China

Background: Treatment with the dipeptidyl peptidase-4 inhibitors (DPP4i) and angiotensin receptor blockers (ARBs) in patients with type 2 diabetic nephropathy (DN) has not been well characterized. This study aimed to assess the renoprotection of this combined treatment in DN ***: A total of 159 type 2 DN patients from 2013 to 2015 were enrolled retrospectively from a prospective DN cohort at the National Clinical Research Center of Kidney Diseases, Jinling Hospital (China). Fifty-seven patients received DPP4i and ARB treatment, and 102 patients were treated with ARBs alone. All patients were followed up for at least 12 months. Statistical analyses were performed using Stata version ***: There were no significant differences at baseline for age, sex, body mass index, duration of diabetes, fasting blood glucose (FBG), hemoglobin A1c (HbA1c), and estimated glomerular filtration rate (eGFR) between the two groups. Antihypertensive and antidiabetic medication use was similar in each group except calcium channel antagonists (P = 0.032). No significant changes in FBG and HbA1c were observed in the two groups after treatment. The eGFR decreased slower in the DPP4i + ARB group than in the ARB group at 12 months (?12 months: -2.48 ± 13.86 vs. -6.81 ± 12.52 ml·min–1·1.73m–2,P = 0.044). In addition, proteinuria was decreased further in the DPP4i + ARB group than in the ARB group after 24 months of treatment (?24 months: -0.18 [-1.00, 0.17] vs. 0.32 [-0.35, 0.88],P = 0.031). There were 36 patients with an eGFR decrease of more than 30% over 24 months. After adjusting for FBG, HbA1c, and other risk factors, DPP4i + ARB treatment was still associated with a reduced incidence of an eGFR decrease of 20% or 30%.Conclusions: The combined treatment of DPP4i and ARBs is superior to ARBs alone, as evidenced by the greater proteinuria reduction and lower eGFR decline. In addition, the renoprotection of DPP4i combined with ARBs was independent of glycemic control.

关键词： Angiotensin Receptor Blockers Diabetic Nephropathy Dipeptidyl Peptidase-4 Inhibitors

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也论梁启超的新史学思想——以《李鸿章》传为例

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求是学刊 2012年第1期39卷 155-160页

作者：邱丹丹东北师范大学历史文化学院吉林长春130024 吉林建筑工程学院思想政治理论教研部吉林长春130118

梁启超是中国近代新史学的开创者之一,在历史理论方面作出了杰出贡献,而《李鸿章》传是其新史学思想形成初期阶段的一部传记作品,通篇体现着梁启超对自己所提出的"新史学"理论的认真思考和实践。故文章以《李鸿章》传为代表,对梁启超逃... 详细信息

梁启超是中国近代新史学的开创者之一,在历史理论方面作出了杰出贡献,而《李鸿章》传是其新史学思想形成初期阶段的一部传记作品,通篇体现着梁启超对自己所提出的"新史学"理论的认真思考和实践。故文章以《李鸿章》传为代表,对梁启超逃亡日本前期初步形成的新史学观点进行综合分析,提出如下判断:维新救国的政治理想和实践是梁启超资产阶级新史学产生的根源,《李鸿章》传作为一部其新旧史学思想过渡转型时期的著述,从对旧史学的批判、新政治理想的萌发、传论结合新文风的开创、史学比较方法的运用等方面体现着梁启超对所倡导的资产阶级新史学的初步尝试,因此这部传记作品与其他时期的传记著述相比,具有较高的学术价值。

关键词：《李鸿章》传旧史学新史学

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组合航向系统中数字磁罗盘的罗差补偿研究

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仪器仪表学报 2006年第z2期27卷 1369-1371,1401页

作者：邱丹黄圣国南京航空航天大学民航学院南京210016

研制了一种由数字磁罗盘和角速度陀螺组成的组合航向系统。为了提高系统的航向精度,本文提出了两种有效的误差补偿方法:八位置最小二乘法和椭圆假设补偿法。通过将两种算法应用在HMR3300型数字磁罗盘进行航向测量,分析并比较了两种算法... 详细信息

研制了一种由数字磁罗盘和角速度陀螺组成的组合航向系统。为了提高系统的航向精度,本文提出了两种有效的误差补偿方法:八位置最小二乘法和椭圆假设补偿法。通过将两种算法应用在HMR3300型数字磁罗盘进行航向测量,分析并比较了两种算法的可行性和有效性。实验结果表明:椭圆假设补偿法是一种更为智能的误差补偿算法,它能够实现数字磁罗盘的自动误差补偿和自动校准,误差补偿效果良好。

关键词：数字磁罗盘最小二乘法椭圆假设误差补偿

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