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Carbon Energy 2022年第4期4卷 506-516页

作者： zhen hou Shuixin Xia Chaoqun Niu Yuepeng Pang Hao Sun Zhiqi Li Yuxi Xu Shiyou zheng School of Materials and Chemistry University of Shanghai for Science and TechnologyShanghaiChina School of Engineering Westlake UniversityHangzhouChina

Solid polymer electrolyte is one of the most promising avenues to construct next-generation energy storage systems with high energy density,high safety,and flexibility,yet the low ionic conductivity at room temperature and poor high-voltage tolerance have limited their practical applications.To address the above issues,we design and synthesize a highly crystalline,vinyl-functionalized covalent organic framework(V-COF)rationally grafted with ether-based segments through solvent-free in situ polymerization.V-COF can afford a fast Li+conduction highway along the one-dimensional nanochannels and improve the high-voltage stability of ether-based electrolytes due to the rigid and electrochemically stable networks.The as-formed solid-state electrolyte membranes demonstrate a superior ionic conductivity of 1.1×10^(−4)S cm^(−1)at 40℃,enhanced wide electrochemical window up to 5.0 V,and high Young's modulus of 92 MPa.The Li symmetric cell demonstrates ultralong stable cycling over 600 h at a current density of 0.1 mA cm^(−2)(40℃).The assembled solid-state Li|LiFePO4 cells show a superior initial specific capacity of 136 mAh g^(−1)at 1 C(1 C=170 mA g^(−1))and a high capacity retention rate of 84%after 300 cycles.This study provides a novel and scalable approach toward high-performance solid ether-based lithium metal batteries.

关键词： covalent organic framework energy storage in situ polymerization solid polymer electrolyte

Towards high-performance lithium metal anodes via the modification of solid electrolyte interphases

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Journal of Energy Chemistry 2020年第6期29卷 7-17,I0001页

作者： zhen hou Jiaolong Zhang Wenhui Wang Qianwen Chen Baohua Li Chaolin Li Shenzhen Key Laboratory of Organic Pollution Prevention and Control Environmental Science and Engineering Research CenterHarbin Institute of TechnologyShenzhen 518055GuangdongChina Department of Chemistry Southern University of Science and Technology(SUSTech)Shenzhen 518055GuangdongChina Shenzhen Key Laboratory on Power Battery Safety Research and Shenzhen Geim Graphene Center Tsinghua Shenzhen International Graduate SchoolShenzhen 518055GuangdongChina

Li metal has been regarded as one of the most promising anodes for high-energy-density storage systems due to its high theoretical capacity and lowest electrochemical potential.Unfortunately,an unstable and non-uniform solid electrolyte interphase(SEI)deriving from the spontaneous reaction between Li metal anode and electrolyte causes uneven Li deposition,resulting in the growth of Li dendrites and low Coulombic efficiency,which have greatly hindered the practical application of Li metal batteries.Thus,the construction of a stable SEI is an effective approach to suppress the growth of Li dendrites and enhance the electrochemical performances of Li metal anode.In this review,we firstly introduce the formation process of inferior SEI of Li metal anode and the corresponding challenges caused by the unstable SEI.Next,recent progresses to modify SEI layer through the regulation of electrolyte compositions and exsitu protective coating are summarized.Finally,the remained issues,challenges,and perspectives are also proposed on the basis of current research status and progress.

关键词： Li metal anode Coulombic efficiency Dendrites Solid electrolyte interphases Coating

Maternal betaine suppresses adrenal expression of cholesterol trafficking genes and decreases plasma corticosterone concentration in offspring pullets

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Journal of Animal Science and Biotechnology 2020年第1期11卷 241-250页

作者： Halima Abobaker Yun Hu Nagmeldin A.Omer zhen hou Abdulrahman A.Idriss Ruqian Zhao MOE Joint International Research Laboratory of Animal Health&Food Safety Nanjing Agricultural UniversityNanjing 210095People’s Republic of China Key Laboratory of Animal Physiology&Biochemistry Nanjing Agricultural UniversityNanjing 210095People’s Republic of China College of Allied Medical Sciences University of Nyala155 NyalaSudan.

Background:Laying hens supplemented with betaine demonstrate activated adrenal steroidogenesis and deposit higher corticosterone(CORT)in the egg yolk.Here we further investigate the effect of maternal betaine on the plasma CORT concentration and adrenal expression of steroidogenic genes in offspring pullets.Results:Maternal betaine significantly reduced(Phough methyl transfer enzymes,such as AHCYL,GNMT1 and BHMT were up-regulated.Conclusions:These results indicate that the reduced plasma CORT in betaine-supplemented offspring pullets is linked to suppressed cholesterol trafficking into the mitochondria,despite the activation of cholesterol and corticosteroid synthetic genes associated with promoter hypomethylation.

关键词： Adrenal gland Chicken Cholesterol Corticosterone Maternal betaine Steroidogenesis

全身免疫炎症指数列线图对黏液表皮样癌预后预测价值的研究

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上海口腔医学 2024年第2期33卷 205-210页

作者：李晓娜宗颖睿张彦喜候珍珍卢丽雯郑州大学第一附属医院口腔美容科河南郑州450000 郑州大学第一附属医院口腔预防科河南郑州450000

目的:探讨全身免疫炎症指数(SII)与黏液表皮样癌(MEC)患者手术后无复发生存期(RFS)的关系,并建立列线图预后模型。方法:收集2016年1月—2019年7月在郑州大学第一附属医院进行手术治疗的135例MEC患者的临床资料。对患者的SII进行受试者... 详细信息

目的:探讨全身免疫炎症指数(SII)与黏液表皮样癌(MEC)患者手术后无复发生存期(RFS)的关系,并建立列线图预后模型。方法:收集2016年1月—2019年7月在郑州大学第一附属医院进行手术治疗的135例MEC患者的临床资料。对患者的SII进行受试者工作特征曲线(ROC)分析,得到最佳截断值,由此将患者SII指数分为高低2组,运用Kaplan-Meier法进行生存分析。采用Cox风险比例回归模型和最小绝对收缩选择算子(LASSO)分析患者预后的影响因素,构建列线图模型预测患者无复发生存期(RFS),采用ROC曲线下面积(AUC)和校正曲线评价该模型,并验证一致性。结果:生存分析显示,高SII组无复发生存期显著短于低SII组(P<0.001)。Cox风险比例回归模型中,高SII(HR=2.179,95%CI:1.072~4.426,P=0.031)、肿瘤低分化(HR=6.894,95%CI:2.770~17.158,P<0.001)、颈淋巴结转移(HR=2.091,95%CI:1.034~4.230,P=0.040)为预后因子,与低RFS有关。结论:MEC患者术前SII越低,预后越好,基于SII的列线图可有效预测MEC患者预后。

关键词：黏液表皮样癌全身免疫炎症指数列线图生存分析预后

Dietary betaine activates hepatic VTGⅡexpression in laying hens associated with hypomethylation of GR gene promoter and enhanced GR expression

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Journal of Animal Science and Biotechnology 2018年第2期9卷 381-390页

作者： Nagmeldin A.Omer Yun Hu Yan Hu Abdulrahman A.Idriss Halima Abobaker zhen hou Haibo Dong Ruqian Zhao MOE Joint International Research Laboratory of Animal Health&Food Safety Nanjing Agricultural UniversityNanjing 210095People’s Republic of China Key Laboratory of Animal Physiology&Biochemistry Nanjing Agricultural UniversityNanjing 210095People’s Republic of China Jiangsu Collaborative Innovation Centre of Meat Production and Processing Quality and Safety ControlNanjing 210095People’s Republic of China Poultry Institute Chinese Academy of Agriculture SciencesYangzhouJiangsuChina

Background: Vitellogenin(VTG) is a precursor of egg yolk proteins synthesized within the liver of oviparous vertebrates. Betaine is an important methyl donor that is reported to improve egg production of laying hens with an unclear mechanism. In the present study, we fed betaine-supplemented diet(0.5%) to laying hens for 4 wk and investigated its effect on VTGII expression in the liver.Results: Betaine did not affect chicken weight, but significantly(P < 0.05) increased egg laying rate accompanied with a significant(P < 0.05) increase in hepatic concentration and plasma level of VTGI. Plasma estrogen level did not change,but the hepatic expression of estrogen receptor α(ERα) mR NA was significantly(P < 0.05) up-regulated. Betaine did not affect the protein content of ERα, but significantly(P < 0.05) increased hepatic expression of glucocorticoid receptor(GR)at both mR NA and protein levels. Also, ERα/GR interaction tended to be enhanced in the liver nuclear lysates of betainesupplemented hens as determined by co-immunoprecipitation. Furthermore, dietary betaine supplementation significantly increased(P < 0.05) the hepatic expression of methyl-transfer enzymes, such as BHMT, GNMT, and DNMT1,which was associated with higher SAM/SAH ratio and hypomethylation of GR promoter regions.Conclusions: Betaine activates hepatic VTGII expression in association with modified DNA methylation of GR gene promoter, GR expression and ERα/GR interaction. Activation of hepatic VTGII expression may contribute, at least partly, to improved egg production in betaine-supplemented hens.

关键词： Betaine Glucocorticoid receptor Hypomethylation Laying hens Vitellogenin

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新疆农业全要素生产率的空间分异及动态演进

数学的实践与认识 2024年第4期54卷 1-17页

作者：侯震梅周天宇周勇新疆财经大学统计与数据科学学院新疆乌鲁木齐830012

利用新疆84个县域2009-2018年农业投入与产出数据,基于HicksMoorsteen指数测算农业全要素生产率的增长水平,通过Dagum基尼系数分解法与扩展的分布动态学模型,揭示新疆农业全要素生产率增长的区域差异及分布动态演进规律.研究发现:新疆... 详细信息

利用新疆84个县域2009-2018年农业投入与产出数据,基于HicksMoorsteen指数测算农业全要素生产率的增长水平,通过Dagum基尼系数分解法与扩展的分布动态学模型,揭示新疆农业全要素生产率增长的区域差异及分布动态演进规律.研究发现:新疆农业全要素生产率指数整体偏低,空间分异程度呈现先扩大后缩小的趋势,超变密度是农业全要素生产率增长分异的主要来源,农业全要素生产率增长具有β收敛特征.

关键词：农业全要素生产率区域差异分布动态基尼系数

论“三个务必”的生成逻辑、理论特质与实践指向

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行政与法 2024年第7期 28-38页

作者：侯震胡超权中共吉林省委党校(吉林省行政学院)党史教研部吉林大学材料科学与工程学院

在党的二十大报告中,习近平总书记首次提出“三个务必”。“三个务必”的提出既是党领导人民站起来、富起来、强起来的必然趋势,同时也是顺应实现第二个百年奋斗目标新征程的发展趋势。“三个务必”内涵丰富、逻辑严密、彼此呼应,彰显... 详细信息

在党的二十大报告中,习近平总书记首次提出“三个务必”。“三个务必”的提出既是党领导人民站起来、富起来、强起来的必然趋势,同时也是顺应实现第二个百年奋斗目标新征程的发展趋势。“三个务必”内涵丰富、逻辑严密、彼此呼应,彰显出新时代建设社会主义现代化强国过程中,中国共产党人的奋斗目标、动力源泉、作风修养、精神面貌的集中统一。“三个务必”是中国共产党人牢记初心使命的重要体现,凸显了百年大党对理想信念的执着坚守、慎终如始的忧患意识和永不懈怠的进取精神。“三个务必”孕育于党的百年奋斗征程之中,形成于新时代取得的历史性成就、发生的历史性变革之中,既昭示出中国共产党人勇于自我革命的胆识和魄力,又体现了百年大党常戒常新的优良作风,是新时代新征程中国共产党走好新的赶考之路的重要遵循。“三个务必”映射出百年大党对于执政规律、党的建设规律的深刻认识,对于面向第二个百年奋斗目标新征程上全党统一思想、统一意志、统一行动,在成绩面前保持清醒和坚定,在困难面前敢于斗争、善于斗争,推进中国式现代化行稳致远具有重大的历史意义和现实价值。

关键词： “两个务必” “三个务必” 历史自信自我革命中华优秀传统文化

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中国天然气安全评价指标体系构建与评价研究

价值工程 2024年第12期43卷 42-45页

作者：刘浩旻侯振中国石化石油勘探开发研究院北京102206

作为一种清洁的化石能源,天然气安全对于我国能源低碳转型至关重要。本文从资源可获得性、经济可负担性、资源利用效率、资源可及性、环境可接受性五个维度构建了天然气安全评价指标体系;并选取2012-2022年30个省份的面板数据,综合运用... 详细信息

作为一种清洁的化石能源,天然气安全对于我国能源低碳转型至关重要。本文从资源可获得性、经济可负担性、资源利用效率、资源可及性、环境可接受性五个维度构建了天然气安全评价指标体系;并选取2012-2022年30个省份的面板数据,综合运用归一法、熵权法、综合指数法从省域、地区及国家层面对中国天然气安全状况进行了评价分析;最后提出了有关对策建议。

关键词：天然气安全指标体系熵权法综合指数法

Titanium nitride nanorod array/carbon cloth as flexible integrated host for highly stable lithium-sulfur batteries

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Rare Metals 2023年第12期42卷 4115-4127页

作者： Rui-Qing Liu Feng Jin Min Gu Dong-Wen Zhang Lu-Lu He Wen-Xiu Liu Wen-Feng Zhu Kun Xie Jing-Yi Wu Yi-Ran Liu Wei-Wei Yang Xiu-Jing Lin Li Shi Xiao-Miao Feng zhen hou Ji-Gang Zhou Yan-Wen Ma State Key Laboratory of Organic Electronics and Information Displays and Institute of Advanced Materials(IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing University of Posts and TelecommunicationsNanjing 210023China Department of Applied Physics The Hong Kong Polytechnic UniversityHung Hom 1000872Hong KongChina Canadian Light Source Inc. University of SaskatchewanSaskatoonSK S7N 2V3Canada Suzhou Vocational Institute of Industrial Technology Suzhou 215104China

Lithium-sulfur(Li-S)batteries have been regarded as promising energy-storage systems,due to their high theoretical capacity and energy density.However,the carbonaceous sulfur hosts suffer from weak binding force between the hosts and polysulfides,restricting the cyclic stability of sulfur electrode.Meantime,the presence of binder and conductive agent in the traditional electrode reduces its energy density.This study demonstrates that titanium nitride(TiN)nanorod array on carbon cloth(CC)is employed as a flexible host for highly stable Li-S batteries via solvothermal synthesis-nitridation strategy.On the one hand,the flexible integrated network composed of three-dimensional TiN nanorod array and CC significantly improves the conductivity,increases the electron transport and electrolyte penetration of cathode.On the other hand,the 3D structure of TiN/CC and the enhanced polarity of TiN effectively strengthen the physical and chemical double adsorption for polysulfides.As a result,the combination of TiN nanorod array and CC synergistic ally promotes sulfur utilization and electrochemical performances of S@TiN/CC cathode.A discharge capacity of1015.2 mAh·g^(-1)at 0.5C after 250 cycles and 604.1mAh·g^(-1)at 3C after 250 cycles is realized.Under a larger current density of 5C,the resulting S@TiN/CC cathode maintains a high discharge capacity of 666.6 mAh·g^(-1)and the Coulombic efficiency of about 100%.

关键词： Titanium nitride Nanorod array Integrated structure Chemical adsorption Lithium-sulfur batteries

Identifying Scientific Project-generated Data Citation from Full-text Articles: An Investigation of TCGA Data Citation

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Journal of Data and Information Science 2016年第2期1卷 32-44页

作者： Jiao Li Si zheng Hongyu Kang zhen hou Qing Qian Institute of Medical Information and Library Chinese Academy of Medical Sciences

Purpose： In the open science era, it is typical to share project-generated scientific data by depositing it in an open and accessible database. Moreover, scientific publications are preserved in a digital library archive. It is challenging to identify the data usage that is mentioned in literature and associate it with its source. Here, we investigated the data usage of a government-funded cancer genomics project, The Cancer Genome Atlas（TCGA）, via a full-text literature analysis.Design/methodology/approach： We focused on identifying articles using the TCGA dataset and constructing linkages between the articles and the specific TCGA dataset. First, we collected 5,372 TCGA-related articles from Pub Med Central（PMC）. Second, we constructed a benchmark set with 25 full-text articles that truly used the TCGA data in their studies, and we summarized the key features of the benchmark set. Third, the key features were applied to the remaining PMC full-text articles that were collected from PMC.Findings： The amount of publications that use TCGA data has increased significantly since 2011, although the TCGA project was launched in 2005. Additionally, we found that the critical areas of focus in the studies that use the TCGA data were glioblastoma multiforme, lung cancer, and breast cancer; meanwhile, data from the RNA-sequencing（RNA-seq） platform is the most preferable for use.Research limitations： The current workflow to identify articles that truly used TCGA data is labor-intensive. An automatic method is expected to improve the performance.Practical implications： This study will help cancer genomics researchers determine the latest advancements in cancer molecular therapy, and it will promote data sharing and data-intensive scientific discovery.Originality/value： Few studies have been conducted to investigate data usage by governmentfunded projects/programs since their launch. In this preliminary study, we extracted articles that use TCGA data from PMC, and we created a link between the full-text articles and the sourc

关键词： Scientific data Full-text literature Open access PubMed Central Data citation