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Chinese Journal of Chemical Engineering 2019年第1期27卷 130-135页

作者： Shenwen Fang Manlin Wang zipei xu Lei Zhai Xiujun Wang Yan Xiong School of Chemistry and Chemical Engineering Southwest Petroleum University Oil&Gas Applied Chemistry Key Laboratory of Sichuan Province Beijing Research Center of China National Offshore Oil Corporation

It is not easy for liquid cationic flocculant diallyldimethyl-ammonium chloride(DM) homopolymer to simultaneously exhibit both low viscosity and high polymer content, which limited its application in offshore *** this paper, sodium allylsulfonate(XS) and sodium formate were used in the aqueous solution polymerization of *** amphoteric flocculant(PDMXS) with the properties of high polymer content(about 55 wt%) and low viscosity(efflux time measured by an Apply 4 viscometer was less than 100 s) was *** optimum reaction conditions were identified as follows: the mass ratio of XS/DM was 10 wt%, the concentration of sodium formate was 2000 mg·L^(-1), reaction temperature was 55 ℃, the concentration of KPS was 0.5 wt% and the reaction time was 4 *** polymerization kinetics was *** results showed that R_p∝ [M]^(1.97)[I]^(0.68)[CTA]^(0.71) and the apparent activation energy was 72.55 kJ·mol^(-1).

关键词： diallyldimethyl-ammonium chloride(DM) PDMXS

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两性离子絮凝剂聚合行为及性能评价

石油化工 2019年第6期48卷 589-595页

作者：徐梓培王秀军靖波方申文姚锰段明西南石油大学化学化工学院油气田应用化学四川省重点实验室四川成都610500 中国海油研究总院北京100028

以N,N-二甲基二烯丙基氯化铵(DM)和烯丙基磺酸钠(XS)为原料,利用水溶液聚合合成了两者的共聚物P(DM-XS),采用膨胀计法进行共聚动力学研究,分别利用FR法、KT法和YBR法计算DM和XS的竞聚率,并研究共聚物平均组成与转化率的关系。实验结果表... 详细信息

以N,N-二甲基二烯丙基氯化铵(DM)和烯丙基磺酸钠(XS)为原料,利用水溶液聚合合成了两者的共聚物P(DM-XS),采用膨胀计法进行共聚动力学研究,分别利用FR法、KT法和YBR法计算DM和XS的竞聚率,并研究共聚物平均组成与转化率的关系。实验结果表明,DM和XS的共聚动力学方程为Rp∝[M]2.17[I]0.61[CTA]0.73,表观聚合活化能为72.55 kJ/mol;得到DM和XS的竞聚率平均值分别为1.023 2和9.788 9;随着转化率的增大,共聚物中DM的含量逐渐增大,在聚合过程中为保持共聚物平均组成基本不变,建议采用补充XS的方法;絮凝剂P(DM-XS)用于处理含聚污水,除油率达99%,絮体不黏壁。

关键词：两性离子絮凝剂共聚动力学方程竞聚率含聚污水

Einstein Probe discovery of EP240408a: A peculiar X-ray transient with an intermediate timescale

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 222-240页

作者： Wenda Zhang Weimin Yuan Zhixing Ling Yong Chen Nanda Rea Arne Rau Zhiming Cai Huaqing Cheng Francesco Coti Zelati Lixin Dai Jingwei Hu Shumei Jia Chichuan Jin Dongyue Li Paul O’Brien Rongfeng Shen Xinwen Shu Shengli Sun Xiaojin Sun Xiaofeng Wang Lei Yang Bing Zhang Chen Zhang Shuang-Nan Zhang Yonghe Zhang Jie An David Buckley Alexis Coleiro Bertrand Cordier Liming Dou Rob Eyles-Ferris Zhou Fan Hua Feng Shaoyu Fu Johan P.U.Fynbo Lluis Galbany Saurabh W.Jha Shuaiqing Jiang Albert Kong Erik Kuulkers Weihua Lei Wenxiong Li Bifang Liu Mingjun Liu Xing Liu Yuan Liu Zhu Liu Chandreyee Maitra Alessio Marino Itumeleng Monageng Kirpal Nandra Jeremy Sanders Roberto Soria Lian Tao Junfeng Wang Song Wang Tinggui Wang Zhongxiang Wang Qingwen Wu xuefeng Wu Dong xu Yanjun xu Suijian xue Yongquan xue Zijian Zhang zipei Zhu Hu Zou Congying Bao Fansheng Chen Houlei Chen Tianxiang Chen Wei Chen Yehai Chen Yifan Chen Chenzhou Cui Weiwei Cui Yanfeng Dai Dongwei Fan Ju Guan Dawei Han Dongjie Hou Haibo Hu Maohai Huang Jia Huo Zhenqing Jia Bowen Jiang Ge Jin Chengkui Li Junfei Li Longhui Li Maoshun Li Wei Li Zhengda Li Tianying Lian Congzhan Liu Heyang Liu Huaqiu Liu Fangjun Lu Laidan Luo Jia Ma xuan Mao Haiwu Pan Xin Pan Liming Song Hui Sun Yunyin Tan Qingjun Tang Yihan Tao Hao Wang Juan Wang Lei Wang Wenxin Wang Yilong Wang Yusa Wang Qinyu Wu Haitao xu Jingjing xu Xinpeng xu Yunfei xu Zhao xu Changbin xue Yulong xue Ailiang Yan Haonan Yang Xiongtao Yang Yanji Yang Juan Zhang Mo Zhang Wenjie Zhang Zhen Zhang Zhen Zhang Ziliang Zhang Donghua Zhao Haisheng Zhao Xiaofan Zhao Zijian Zhao Hongyan Zhou Yilin Zhou Yuxuan Zhu Zhencai Zhu National Astronomical Observatories Chinese Academy of Sciences School of Astronomy and Space Sciences University of Chinese Academy of Sciences Key Laboratory of Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences Institute of Space Sciences (ICE) CSIC Institut d’Estudis Espacials de Catalunya (IEEC) Max Planck Institute for Extraterrestrial Physics Innovation Academy for Microsatellites Chinese Academy of Sciences Department of Physics University of Hong Kong School of Physics and Astronomy University of Leicester School of Physics and Astronomy Sun Yat-sen University Department of Physics Anhui Normal University Shanghai Institute of Technical Physics Chinese Academy of Sciences Physics Department Tsinghua University Nevada Center for Astrophysics University of Nevada Las Vegas Department of Physics and Astronomy University of Nevada Las Vegas South African Astronomical Observatory Department of Astronomy University of Cape Town Department of Physics University of the Free State Université Paris Cité CNRS Astroparticule et Cosmologie Université Paris Cité CEA Paris-Saclay IRFU/DAp-AIM Department of Astronomy Guangzhou University Cosmic Dawn Center (DAWN) Niels Bohr Institute University of Copenhagen Department of Physics and Astronomy Rutgers the State University of New Jersey Institute for Cosmic Ray Research The University of Tokyo ESA/ESTEC Department of Astronomy School of Physics Huazhong University of Science and Technology INAF-Osservatorio Astrofisico di Torino Sydney Institute for Astronomy School of Physics The University of Sydney Department of Astronomy Xiamen University Institute for Frontiers in Astronomy and Astrophysics Beijing Normal University Department of Astronomy University of Science and Technology School of Astronomy and Space Sciences University of Science and Technology of China Institute of Deep Space Sciences Deep Space Exploration Laboratory Department of Astronomy School of Physics and Astronomy Yunnan University Shanghai Astronomical Observatory Chi

We report the discovery of a peculiar X-ray transient,EP240408a,by Einstein Probe （EP） and follow-up studies made with EP,Swift,NICER,GROND,ATCA and other ground-based multiwavelength *** new transient was first detected with Wide-field X-ray Telescope （WXT） on board EP on April 8th,2024,manifested in an intense yet brief X-ray flare lasting for *** flare reached a peak flux of 3.9×10-9erg cm-2s-1in 0.5-4 ke V,～300 times brighter than the underlying X-ray emission detected throughout the *** and more precise follow-up observations by EP/FXT,Swift and NICER confirmed the finding of this new *** X-ray spectrum is non-thermal in 0.5-10 ke V,with a power-law photon index varying *** X-ray light curve shows a plateau lasting for ～4 d,followed by a steep decay till becoming undetectable ～10 d after the initial *** on its temporal property and constraints from previous EP observations,an unusual timescale in the range of 7-23 d is found for EP240408a,which is intermediate between the commonly found fast and long-term *** counterparts have been found in optical and near-infrared,with the earliest observation at 17 h after the initial X-ray detection,suggestive of intrinsically weak emission in these *** demonstrate that the remarkable properties of EP240408a are inconsistent with any of the transient types known so far,by comparison with,in particular,jetted tidal disruption events,gamma-ray bursts,X-ray binaries and fast blue optical *** nature of EP240408a thus remains an *** suggest that EP240408a may represent a new type of transients with intermediate timescales of the order of～10 *** detection and follow-ups of more of such objects are essential for revealing their origin.

关键词： X-ray transients ${\bm~{Einstein~~Probe}}$

人骨髓间充质干细胞在兔角膜缘干细胞缺损动物模型中的分化

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眼视光学杂志 2009年第6期11卷 414-418页

作者：蒋自培胡赛静徐建国孔丽萍吴文栩瞿佳温州医学院附属第一医院眼科浙江温州325000 温州医学院附属眼视光学院浙江温州325027

目的探讨人骨髓间充质干细胞(mesenchymal stem cells,MSCs)分化为角膜上皮细胞的可塑性及可行性。方法20只日本大耳白兔随机分为对照组和实验组,每组10只,右眼为实验眼。实验组:将人MSCs接种在人羊膜上培养4d后移植到兔角膜缘干细胞缺... 详细信息

目的探讨人骨髓间充质干细胞(mesenchymal stem cells,MSCs)分化为角膜上皮细胞的可塑性及可行性。方法20只日本大耳白兔随机分为对照组和实验组,每组10只,右眼为实验眼。实验组:将人MSCs接种在人羊膜上培养4d后移植到兔角膜缘干细胞缺损的动物模型;对照组:仅采用羊膜移植到兔角膜缘干细胞缺损的动物模型。分别于移植后第1、第2、第3、第4和第6周,摘取各组眼球,分别行HE和PAS染色、单克隆抗体AE1和PCNA染色、透射电镜和扫描电镜检查。结果人MSCs接种到羊膜后能在羊膜上生长,与羊膜共培养4d后,人MSCs贴附羊膜生长迅速,组织学特征无明显改变。羊膜负载人MSCs移植到兔角膜基质表面,角膜表层细胞PAS染色呈阴性,AE1和PCNA染色呈阳性,具有典型的上皮细胞形态;而对照组PAS染色呈阳性,AE1和PCNA染色呈阴性。超微结构观察可见,实验组电镜下可见微绒毛、桥粒和张力丝等典型上皮细胞结构,而对照组未见以上明显特征。结论羊膜负载人MSCs移植到兔眼表角膜基质后,MSCs能存活、增殖并向角膜上皮样细胞分化。

关键词：骨髓间充质干细胞角膜上皮细胞分化

The intrinsic developmental age signal defines an age-dependent climbing behavior in cucumber

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Horticultural Plant Journal 2024年第3期10卷 797-808页

作者： Zezhou Hong Xinrui Wang zipei Fan Jiahao Wang Aiyi Yang Guochao Yan Yong He Huasen Wang Zhujun Zhu Yunmin xu College of Horticulture Science Zhejiang Agriculture and Forestry UniversityHangzhouZhejiang 311300China Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable Ministry of Agriculture and Rural AffairsHangzhouZhejiang 311300China Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province HangzhouZhejiang 311300China

The tendril is a climbing organ in cucurbits and functions in physical support and to avoid shading by neighboring ***,how cucurbits produce tendrils to obtain climbing ability is largely *** this study,tendril phenotypes were investigated during different developmental *** results revealed that tendril growth exhibited an age-dependent pattern in *** growth was inhibited,and the tendril was formed as a short tendril[nonfunctional tendril(nonF-tendril),approximately 0.1 cm]during the seedling *** contrast,enhanced cell proliferation and cell expansion led to rapid elongation of the tendril during the climbing stage,and the tendril formed as a functional tendril(F-tendril,approximately 30 cm)to obtain climbing ***-qPCR detection showed that age-dependent tendril growth correlated negatively with the abundance of the conserved age regulator *** induced CsmiR156 to inhibit CsSPLs,and F-tendril formation and climbing ability were delayed in defoliated cucumbers,which confirmed the role of CsmiR156 in regulating tendril growth in ***,exogenous gibberellin(GA)treatment showed that GA positively regulated tendril growth,and RT-qPCR detection showed that the GA bio-synthetic genes and metabolic genes were affected by age pathway,suggesting that the age pathway depended on GA bio-synthetic and metabolic pathway to regulate cell expansion to determine tendril *** summary,our work reveals that change in tendril type is an important marker of phase transition in cucumber,and tendril growth is regulated by an intrinsic developmental age signal,ensuring that the cucumber obtains climbing ability at a suitable age.

关键词： Cucumber Tendril Age CsmiR156 CsSPL Climbing ability

基于硅烷偶联剂表面改性制备Al_2O_3/PVDF杂化膜

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化工进展 2017年第2期36卷 652-657页

作者：朱子沛汤旭何其董浩朱良肖凯军华南理工大学食品科学与工程学院广东广州510640

采用硅烷偶联剂(2-氰乙基)三乙氧基硅烷对纳米Al_2O_3粒子进行表面改性,利用热致相变法制备了改性Al_2O_3/PVDF有机无机杂化膜,研究了改性Al_2O_3的添加量对杂化膜性能的影响。经(2-氰乙基)三乙氧基硅烷改性后,纳米Al_2O_3粒子的团聚减... 详细信息

采用硅烷偶联剂(2-氰乙基)三乙氧基硅烷对纳米Al_2O_3粒子进行表面改性,利用热致相变法制备了改性Al_2O_3/PVDF有机无机杂化膜,研究了改性Al_2O_3的添加量对杂化膜性能的影响。经(2-氰乙基)三乙氧基硅烷改性后,纳米Al_2O_3粒子的团聚减少,改性后纳米Al_2O_3的平均最小粒径为52.23nm。与纯PVDF膜比较,改性纳米Al_2O_3的添加改善了PVDF膜的形貌结构,改性Al_2O_3/PVDF杂化膜形成的球晶明显增加,球晶的密度尺寸缩小,杂化膜中形成了大量连通的界面孔,膜的孔隙率升高,改善了PVDF膜的力学性能和亲水性,提高了截留率。当纳米粒子添加量达到5%时,膜的截留率提高了7.2%,膜的纯水通量达到了593.95L/(m^2·h),膜强度达到5.0MPa。

关键词：硅烷偶联剂表面改性聚偏氟乙烯超滤膜

金属有机框架基水凝胶复合材料修复软硬组织损伤的潜力和优势

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中国组织工程研究 2024年第22期28卷 3583-3590页

作者：赵子沛王旭赵伟锋裴锡波口腔疾病防治全国重点实验室国家口腔医学中心国家口腔疾病临床医学研究中心四川大学华西口腔医院修复科四川省成都市610041 四川大学高分子科学与工程学院四川省成都市610065

背景:由于单纯水凝胶材料存在机械性能差、药物释放不稳定及功能单一等问题,近年来,研究者通过在水凝胶中引入金属有机框架制备了多种金属有机框架基水凝胶复合材料,并在软硬组织修复领域展现出巨大的潜力。目的:以金属有机框架在金属... 详细信息

背景:由于单纯水凝胶材料存在机械性能差、药物释放不稳定及功能单一等问题,近年来,研究者通过在水凝胶中引入金属有机框架制备了多种金属有机框架基水凝胶复合材料,并在软硬组织修复领域展现出巨大的潜力。目的:以金属有机框架在金属有机框架基水凝胶材料中的作用对该复合材料进行分类,进一步归纳其在软硬组织修复领域的研究进展,以期为后续对该复合材料合成机制和临床应用的深入研究提供思路与理论支持。方法:在Web of Science、PubMed、中国知网和万方数据库中,以“金属有机框架,水凝胶,组织工程,组织,骨再生,骨,伤口”为中文检索词,以“Metal organic frameworks,Hydrogels,Tissue engineering,Tissue,Bone regeneration,Bone,Wound”为英文检索词进行文献检索,检索时间范围为2000年1月至2023年8月。通过阅读文题和摘要进行初步筛选,排除中英文文献重复性研究及内容不相关的文献,经文献质量评价后,最后纳入73篇文献进行综述。结果与结论:(1)金属有机框架基水凝胶材料有效解决单纯水凝胶材料机械性能差、药物释放不稳定、功能单一的问题;(2)金属有机框架通过加强水凝胶交联、增强水凝胶药物递送能力和赋予水凝胶多种功能以提高水凝胶修复软硬组织能力;(3)在硬组织修复方面,在骨缺损、骨关节炎和骨软骨缺损等疾病的动物模型中表现出良好的修复效果,提示其在临床修复中具有潜在的应用前景;(4)在软组织修复方面,能发挥止血、抗菌、调节炎症状态、调节氧化应激状态及促进血管生成等多种功能,有效改善各类复杂伤口的微环境,促进软组织再生;(5)尽管金属有机框架基水凝胶材料具有许多优异的性能,但目前尚处于起步阶段,在向临床转化的过程中仍存在一些亟待解决的难题,例如金属有机框架的细胞毒性及金属有机框架的大规模合成等;(6)随着研究的进一步深入,金属有机框架基水凝胶材料在软硬组织修复领域具有广阔的应用前景。

关键词：金属有机框架水凝胶交联组织工程伤口硬组织修复软组织修复

黄铁矿与砷黄铁矿氧化浮选分离技术的研究进展

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矿产综合利用 2023年第5期44卷 112-119页

作者：贾紫珮宋翔宇王文许来福张红涛郑州大学化工学院河南郑州450001

这是一篇矿物加工工程领域的论文。黄铁矿和砷黄铁矿属于常见伴生硫化矿,因二者的晶体结构与表面性质十分相近,所以其浮选分离一直是重要的研究课题。砷硫两种矿物浮选过程中会发生不同程度氧化反应,利用氧化处理技术强化二者的氧化差异... 详细信息

这是一篇矿物加工工程领域的论文。黄铁矿和砷黄铁矿属于常见伴生硫化矿,因二者的晶体结构与表面性质十分相近,所以其浮选分离一直是重要的研究课题。砷硫两种矿物浮选过程中会发生不同程度氧化反应,利用氧化处理技术强化二者的氧化差异,改变矿物本身固有的浮选行为,可以实现砷黄铁矿与黄铁矿的分离。论文从黄铁矿和砷黄铁矿的自身晶体结构与表面性质入手,详细介绍了黄铁矿和砷黄铁矿在氧化浮选分离工艺及机理方面的研究现状及进展,并对研究方向进行了分析展望,希望能够为砷硫矿物的绿色、高效浮选分离提供一定的借鉴。

关键词：矿物加工工程黄铁矿砷黄铁矿砷硫分离氧化浮选

圆钢管混凝土柱火灾升温试验及钢管温度计算方法

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建筑钢结构进展 2018年第6期20卷 46-56页

作者：王紫珮楼国彪饶雯婷刘晓光鞠晓臣许清风同济大学土木工程防灾国家重点实验室上海200092 中国铁道科学研究院集团有限公司北京100081 上海市建筑科学研究院(集团)有限公司上海市工程结构安全重点实验室上海200032

钢管混凝土柱充分利用了钢和混凝土各自的优点,具有良好的结构受力性能和经济性,且施工方便,广泛应用于工程建设。由于钢管内部的混凝土能吸收大量的热量,钢管混凝土柱的抗火性能优于纯钢柱;但若不对其进行防火保护,大部分情况下其耐火... 详细信息

钢管混凝土柱充分利用了钢和混凝土各自的优点,具有良好的结构受力性能和经济性,且施工方便,广泛应用于工程建设。由于钢管内部的混凝土能吸收大量的热量,钢管混凝土柱的抗火性能优于纯钢柱;但若不对其进行防火保护,大部分情况下其耐火极限不能满足规范要求;若对其按纯钢柱进行抗火设计,又会造成很大的浪费。目前国内外对钢管混凝土柱的耐火性能及抗火设计已进行了大量的研究,提出了一些抗火设计方法,但这些方法在实际工程应用中比较复杂,简便性有待提高。构件在火灾下的截面温度分布是抗火设计的基础,为此对10个圆钢管混凝土柱试件进行了标准火灾下非加载耐火试验,得到了火灾下截面温度分布情况;并进行了钢管混凝土柱火灾下截面温度场有限元分析,研究了柱直径、钢管厚度等的影响。进而提出了火灾下钢管混凝土柱钢管温度简化计算方法,其计算精度得到了试验及有限元计算结果的验证。

关键词：圆钢管混凝土柱耐火试验截面温度分布抗火设计简化计算方法

复方樟柳碱联合复方血栓通胶囊治疗眼部缺血性病变的临床疗效观察

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江西医药 2006年第7期41卷 441-442页

作者：蒋自培徐建国浙江省温州医学院附属第一医院眼科温州325000

目的观察复方樟柳碱联合复方血栓通胶囊治疗眼部缺血性病变的临床效果。方法应用复方樟柳碱2ml注射液自患眼颞浅动脉旁皮下注射或球旁注射,每日1次,14d为一个疗程,治疗2疗程。疗程中配合口服复方血栓通胶囊,每日3次,每次3片。结果应用... 详细信息

目的观察复方樟柳碱联合复方血栓通胶囊治疗眼部缺血性病变的临床效果。方法应用复方樟柳碱2ml注射液自患眼颞浅动脉旁皮下注射或球旁注射,每日1次,14d为一个疗程,治疗2疗程。疗程中配合口服复方血栓通胶囊,每日3次,每次3片。结果应用复方樟柳碱联合复方血栓通胶囊治疗眼部缺血性病变,视力和视野总有效率分别为86.1%和88.9%,眼底改变恢复正常。结论复方樟柳碱联合复方血栓胶囊是治疗眼部缺血性病变的有效方法。

关键词：复方樟柳碱复方血栓通胶囊眼部缺血性病变