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Effects of Biostimulation-Bioaugmentation on Coastal Microbial Community in an in situ Mesocosm System

Journal of Ocean University of China 2024年第1期23卷 233-246页

作者： YUAN Fangzheng zhao Yangyong DAI yulai YANG Wen ZHU Jinyong College of Marine Science Ningbo UniversityNingbo 315800China Zhejiang Easytest Environmental Technology Co. Ltd.Ningbo 315800China Hangzhou Academy of Agricultural Sciences Hangzhou 310024China

Globally,various types of pollution affect coastal waters as a result of human activities.Bioaugmentation and biostimulation are effective methods for treating water pollution.However,few studies have explored the response of coastal prokaryotic and eukaryotic communities to bioaugmentation and biostimulation.Here,a 28-day outdoor mesocosm experiment with two treatments(bioaugmentation-A and combined treatment of bioaugmentation and biostimulation-AS)and a control(untreated-C)were carried out.The experiment was conducted in Meishan Bay to explore the composition,dynamics,and co-occurrence patterns of prokaryotic and eukaryotic communities in response to the A and AS using 16S rRNA and 18S rRNA gene amplicon sequencing.After treatment,Gammaproteobacteria and Epsilonproteobacteria were significantly increased in group AS compared to group C,while Flavobacteriia and Saprospirae were significantly reduced.Dinoflagellata was significantly reduced in AS compared to C,while Chrysophyta was significantly reduced in both AS and A.Compared to C,the principal response curve analyses of the prokaryotic and eukaryotic communities both showed an increasing trend followed by a decreasing trend for AS.Furthermore,the trends of prokaryotic and eukaryotic communities in group A were similar to those in group AS compared with group C,but AS changed them more than A did.According to the species weight table on principal response curves,a significant increase was observed in beneficial bacteria in prokaryotic communities,such as Rhodobacterales and Oceanospirillales,along with a decrease in autotrophs in eukaryotic communities,such as Chrysophyta and Diatom.Topological properties of network analysis reveal that A and AS complicate the interactions between the prokaryotic and eukaryotic communities.Overall,these findings expand our understanding of the response pattern of the bioaugmentation and biostimulation on coastal prokaryotic and eukaryotic communities.

关键词： prokaryotic community eukaryotic community bioaugmentation biostimulation coastal waters

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One-step synthesis of cyclic polypyrazole and the self-assembly vesicles driven by hydrogen bond

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Chinese Chemical Letters 2022年第2期33卷 825-829页

作者： Zhen Lu Bogeng Guo yulai zhao Linxi Hou Longqiang Xiao Department of Materials-Oriented Chemical Engineering College of Chemical EngineeringFuzhou UniversityFuzhou 350116China Fujian Key Laboratory of Advanced Manufacturing Technology of Specialty Chemicals Fuzhou UniversityFuzhou 350116China

The synthesis of cyclic polymer is an important topic in polymer chemistry. Herein, we report a one-step method to prepare cyclic polypyrazoles. Monomers with two functional groups, diazo and alkyne, were synthesized and polymerized via 1,3-diploar cycloaddition in bulk under heating without any catalyst.Polypyrazoles with molecular weights in the range of 3800-4400 g/mol and yields in the range of 78.8-98.7% were successfully synthesized. No chain end group was detected by LC-QTOF-MS and FTIR, which proves the cyclic structure of polypyrazoles. What is noteworthy is that the cyclic polypyrazoles can selfassemble into vesicles during the reprecipitation process, which was proved by the results of SEM and TEM. The reason for that is the formation of intermolecular hydrogen bond between NH and ester groups.

关键词： 1,3-Dipolar cycloaddition Polypyrazole Self-assembly Cyclic polymers

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Efficient homogenous catalysis of CO_(2) to generate cyclic carbonates by heterogenous and recyclable polypyrazoles

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Chinese Journal of Chemical Engineering 2022年第3期35卷 110-115页

作者： Zhen Lu Jie He Bogeng Guo yulai zhao Jingyu Cai Longqiang Xiao Linxi Hou Department of Materials-Oriented Chemical Engineering School of Chemical EngineeringFuzhou UniversityFuzhou 350116China Qingyuan Innovation Laboratory Quanzhou 362801China Fujian Key Laboratory of Advanced Manufacturing Technology of Specialty Chemicals Fuzhou UniversityFuzhou 350116China

The cycloaddition between CO_(2)and epoxides to produce cyclic carbonate is an attractive and efficiency pathway for the utilization of CO_(2)as C1 source.The development of catalyst to mediate cycloaddition between CO_(2)and epoxides at low temperature and pressure is still a challenge.Herein,a series of polypyrazoles with glass transition temperature(T_(g))in the range of 42.3-52.5℃ were synthesized and served as catalyst to mediate the cycloaddition of CO_(2)and epoxides by the assistant of tetrabutylammonium bromide.The catalytic behaviors of polypyrazole on the model cycloaddition of CO_(2)to epichlorohydrin,including the reaction parameters optimization and versatility were investigated in detail,and excellent yield(99.9%)and selectivity(99%)were obtained under the optimized reaction conditions of70℃ and 1.0 MPa for 6.0 h.Noteworthily,the polypyrazole acts as homogeneous catalyst during reaction(higher than T_(g)).And under room temperature,polypyrazoles can be easily separated and recovered,which is a promising feature of a heterogeneous catalyst.Furthermore,the reaction mechanism was proposed.The DFT calculation suggested that the formation of hydrogen bond between pyrazole and epoxide greatly reduced the energy barrier,which play an important role in promoting CO_(2)cycloaddition.

关键词： Carbon dioxide CO_(2)conversion Cyclic carbonate Heterogeneous catalysis Polypyrazole

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Preparation of N-doped porous carbons via high internal phase emulsion template

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Progress in Natural Science:Materials International 2021年第2期31卷 270-278页

作者： yulai zhao Zhikui zhao Zhongzheng Zhu Anjun Wang Linxi Hou Department of Materials-Oriented Chemical Engineering College of Chemical Engineering Fuzhou University

Heteroatom doped porous carbon materials have great application prospects in supercapacitors. In the present study, an approach of preparing N-doped porous carbon（NPC） was proposed from porous poly（resorcinolformaldehyde-melamine） monoliths which were prepared by high internal phase emulsion（HIPE） template.Melamine was dissolved in the external phase and copolymerized, acting as the N source and porous structure regulator to provide micropore-dominant NPCs. The structure, morphology, specific surface area（SSA）, and chemical composition of the samples were systematically studied. With melamine content increasing, N-doping content in NPC increased while the SSA of NPC increased at first and then decreased. When the content of N is 8.42 wt%, the obtained NPC showed the highest SSA of about 1670 m;g;. Furthermore, high N doping content could improve the electronic conductivity and provide additional pseudocapacitance of NPC. Under the combined influences of proper N content and high porosity, the prepared NPC electrodes revealed excellent specific capacitance(228.0 Fg;at 1.0 A g;, favorable circling stability, and prominent rate capability in a threeelectrode system with 6 M KOH solution as the electrolyte.

关键词： High internal phase emulsion N-doped porous carbon Melamine Supercapacitor

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适用于S-NUCA异构处理器的任务调度与热管理系统

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计算机工程 2024年第2期50卷 196-205页

作者：周义涛李阳韩超赵玉来汪玲李建华合肥工业大学计算机与信息学院安徽合肥230601 安徽交通职业技术学院安徽合肥230601 合肥工业大学情感计算与先进智能机器安徽省重点实验室安徽合肥230601

异构多核处理器凭借其高性能、低功耗和广泛的应用场景而成为当前计算机平台的主流方案,且大容量的非均匀缓存架构(S-NUCA)具有较低的平均访问时间。然而,不断上升的晶体管规模给异构多核处理器的资源调度和功耗控制带来挑战,传统的调... 详细信息

异构多核处理器凭借其高性能、低功耗和广泛的应用场景而成为当前计算机平台的主流方案,且大容量的非均匀缓存架构(S-NUCA)具有较低的平均访问时间。然而,不断上升的晶体管规模给异构多核处理器的资源调度和功耗控制带来挑战,传统的调度算法在面对基于S-NUCA的多核处理器时忽略了核心之间的缓存访问延迟,且传统热管理方案只提供芯片级功率约束,容易使得系统因核心使用率降低而造成性能下降。为此,提出一种适用于S-NUCA异构多核系统、满足热安全约束的动态线程调度机制TSCDM。利用基于动态每周期指令(IPC)值的阶段检测技术,并基于人工神经网络预测线程的IPC值,以获取线程与核心类型的最佳绑定关系,依据S-NUCA缓存特性获得最优映射和基于任务分类的任务迁移策略。在此基础上,TSCDM基于片上热模型为每个核心实时分配功率预算。在HotSniper上运行SPLASH-2性能测试套件进行实验,结果表明,相较于传统调度方案与基于机器学习的调度方案,TSCDM在加速比和资源利用率上均表现出优势,TSCDM中使用的基于瞬态温度的安全功率算法相比传统热安全功率算法能够降低核心热余量,同时处理器的全频段均有更高的能效比。

关键词：异构多核处理器人工神经网络线程调度阶段检测热安全功率

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5Cr油套管钢在含Cl^(-)的CO_(2)环境中的腐蚀特性研究

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表面技术 2024年第6期53卷 55-66页

作者：赵国仙刘冉冉李琼玮杨立华孙雨来丁浪勇王映超张思琦宋洋西安石油大学材料科学与工程学院西安710065 长庆油田分公司油气工艺研究院西安710018 低渗透油气田勘探开发国家工程实验室西安710018 西安摩尔石油工程实验室股份有限公司西安710065

目的掌握油气井生产中CO_(2)腐蚀对油套管的影响规律,研究兼顾耐蚀性和经济性的5Cr油套管材料在含Cl^(-)的CO_(2)环境中不同时间下的腐蚀演变规律。方法采用XRD、XPS、SEM和EDS等技术分析5Cr油套管钢在不同时间下腐蚀产物膜的演变情况,... 详细信息

目的掌握油气井生产中CO_(2)腐蚀对油套管的影响规律,研究兼顾耐蚀性和经济性的5Cr油套管材料在含Cl^(-)的CO_(2)环境中不同时间下的腐蚀演变规律。方法采用XRD、XPS、SEM和EDS等技术分析5Cr油套管钢在不同时间下腐蚀产物膜的演变情况,利用丝束电极(WBE)和阻抗测试(EIS)技术对其腐蚀电化学行为进行研究。结果5Cr油套管钢腐蚀后期的平均腐蚀速率约为初期的1/2,在腐蚀14 d后,腐蚀产物膜中的Cr富集大于30%,Cr、Fe质量比达到较高水平,约为基体的15倍。随着腐蚀的进行,电荷传递电阻和产物膜覆盖引起的电阻增大,电化学反应阻力增大。在腐蚀前期具有局部不均匀性,随着腐蚀的进行,电极腐蚀电位有负移现象,最终分布区间为−0.59~−0.61 V,电极表面阳极电流区域大幅减少。结论在腐蚀时间延长的条件下,5Cr油套管钢腐蚀产物膜的致密性增加,电荷传递电阻呈变大趋势。在产物膜下的5Cr油套管钢区域,电流发生由阴极向阳极极性转变的现象,产物膜存在的孔隙使5Cr油套管钢基体金属被腐蚀,从而导致阳极电流的出现。表面局部腐蚀电位阳极区的形成和扩展使其有产生点蚀的倾向,但腐蚀产物逐渐沉积在点蚀坑内壁,形成了Cr富集的保护性表面层,原发生点蚀区域由原阳极活性点位转变为阴极区,对其发展起到了抑制作用。

关键词： 5Cr油套管钢 CO_(2)腐蚀腐蚀产物膜 Cr元素富集电化学阻抗谱丝束电极

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FeOOH-RGO气凝胶光催化苯制备苯酚探索性教学实验设计

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大学化学 2024年第4期39卷 169-177页

作者：蔡静宇苗晓雨赵玉来肖龙强福州大学石油化工学院福州350108 清源创新实验室福建泉州362801

针对苯到苯酚制备过程选择性低的问题,介绍了新型探索性实验设计,引导学生以光催化苯制苯酚作为研究对象,通过溶胶-凝胶法制备FeOOH还原氧化石墨烯复合气凝胶,并探究其在光催化苯羟基化制苯酚中的性能。本实验以实现温和条件下提高苯制... 详细信息

针对苯到苯酚制备过程选择性低的问题,介绍了新型探索性实验设计,引导学生以光催化苯制苯酚作为研究对象,通过溶胶-凝胶法制备FeOOH还原氧化石墨烯复合气凝胶,并探究其在光催化苯羟基化制苯酚中的性能。本实验以实现温和条件下提高苯制苯酚选择性为目标,对于培养学生创新思维、提高创新能力与实践能力具有积极的作用。

关键词：还原氧化石墨烯气凝胶光催化芬顿反应探索性实验

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呼吸与危重症医学科咳喘药学门诊的建设实践与效果评价

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安徽医药 2024年第2期28卷 418-424页

作者：刘少华赵蓉匡良洪舒成仁王雨来黄石市中心医院、湖北理工学院附属医院药学部湖北黄石435000

目的回顾性总结呼吸与危重症医学科(PCCM)咳喘药学门诊实践成果,与综合药学门诊进行成效对比,评估其药学服务价值,为其他医疗机构药学门诊的规划建设提供参考。方法选取黄石市中心医院药学综合门诊2020年11月至2021年5月及PCCM咳喘药... 详细信息

目的回顾性总结呼吸与危重症医学科(PCCM)咳喘药学门诊实践成果,与综合药学门诊进行成效对比,评估其药学服务价值,为其他医疗机构药学门诊的规划建设提供参考。方法选取黄石市中心医院药学综合门诊2020年11月至2021年5月及PCCM咳喘药学门诊2021年11月至2022年5月就诊的哮喘病例,通过药学门诊病人用药评估指导单、病人吸入装置操作评定表,对比评价药学综合门诊和PCCM药学门诊的药学服务效果。结果以药学综合门诊哮喘病人为对照组,PCCM咳喘药学门诊哮喘病人为干预组,病人自我用药情况评估,在知晓用药原因、用法用量、不良反应应对措施、药物相互作用方面,首次就诊:对照组为92例(64.8%)、109例(76.8%)、87例(61.3%)、85例(59.9%),干预组为90例(65.2%)、107例(77.5%)、83例(60.1%)、80例(58.0%),两组差异无统计学意义(P>0.05),复诊或随诊时:对照组为118例(83.1%)、114例(80.3%)、98例(69.0%)、94例(66.2%),干预组为132例(95.7%)、128例(92.8%)、123例(89.1%)、120例(87.0%),干预组改善情况优于对照组(P0.05),复诊或随诊时:对照组为88例(62.0%)、46例(32.4%),干预组为105例(76.1%)、8例(5.8%),干预组改善情况优于对照组(P0.05),药师指导后:对照组为76例(55.9%)、18例(13.2%),干预组为30例(23.1%)、2例(1.5%),干预组改善情况优于对照组(P<0.05)。结论 PCCM药学门诊与综合药学门诊相比,在哮喘病人的药物知识教育、吸入装置操作、哮喘控制效果等方面能够发挥出更好的药学服务作用,对其他医疗机构规划建设药学门诊具有一定的借鉴及参考意义。

关键词：哮喘药学服务呼吸与危重症医学科药学门诊效果评价

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Undercooling evolution of pure Sn droplets in various atmospheres based on fast scanning calorimetry

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Chinese Science Bulletin 2014年第20期59卷 2455-2459页

作者： Bingge zhao Linfang Li Qijie Zhai yulai Gao Laboratory for Microstructures Shanghai University School of Materials Science and Engineering Shanghai University

Undercooling of Sn droplets in different atmospheres was studied by fast scanning calorimetry(FSC)at cooling rate of 1,000 K/s.It is found that the undercooling decreased with increasing partial pressure of oxygen.Randomly distributed SnO2islands were observed to form on the droplet surface,which likely has promoted the heterogeneous surface nucleation.As the partial pressure of oxygen changes,the nucleation rate and growth of SnO2led to different oxide islands,which resulted in various potential catalytic sites for the nucleation of the molten Sn droplet.The results showed that the nucleation process of the Sn droplets was sensitive to the solidification environment,and therefore the atmosphere should be taken into account in the study of the nucleation behavior of the single Sn droplets.

关键词：扫描量热法环境敏感过冷度纯锡快速扫描演化 SnO2 成核速率

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Pathological study of 130 cases of nonalcoholic fatty liver disease based on NASH-CRN system

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Frontiers of Medicine 2007年第4期1卷 413-417页

作者： ZHOU Guangde zhao Jingmin DING Xiaohui PAN Deng SUN Yanling YANG Jianfa zhao yulai Department of Pathology The 302nd Hospital of PLABeijing 100039China

To summarize the pathological features of non-alcoholic liver disease(NAFLD)in China based on a histo-logical scoring system for NAFLD designed by the Pathology Committee of NASH Clinical Research Network(NASH-CRN),the specimens of liver needle biopsies from 130 patients with NAFLD were histopathologically analyzed by haematoxylin eosin,reticular fiber and Masson trichrome stain.Immunohistochemistry staining was used to exclude non-NAFLD cases combined with clinical data.Hepatic steatosis,lobular inflammation,hepatocytic ballooning and fibrosis were presented widespread in NAFLD liver tissues.Furthermore,macrovesicular steatosis predominantly located in acinar zone 3 was the main histologic feature of NAFLD and lobular inflammation was usually presented mildly.Hepatocyte ballooning was observed in 94.6%of all 130 cases.Mild perisinusoidal fibrosis and periportal fibrosis were often observed in stage 1 cases.According to the stati-stic analysis,hepatic steatosis was positively correlated with lobular inflammation,hepatocytic ballooning and fibrosis(r=0.587,0.488,0.374,respectively,all P value<0.01).The number of microgranulomas,lipogranulomas and apo-ptotic bodies increased following severity of steatosis,lobular inflammation and fibrosis.Meanwhile,the number of mega-mitochondria and glycogen nuclei was paralleveled to the degree of hepatocytic ballooning(P value all<0.01).We suggest that the role of portal inflammation should be empha-sized besides hepatic steatosis,lobular inflammation,hepa-tocyte ballooning and fibrosis in diagnosis and evaluation of NAFLD.It needs to be further verified whether microgranu-lomas,lipogranulomas and apoptosis bodies could be used as histopathological markers of development of NAFLD.The number of megamitochondria is more frequently be found in NAFLD,while in alcoholic liver diseases was Mallory bodies.

关键词： pathology nonalcoholic fatty liver diseases NASH-CRN scoring system

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