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Nano Research 2024年第6期17卷 4773-4781页

作者： Yuxue Yue Fangmin zuo Bolin Wang Xiaoling Xian Jun Tang Haifeng Zhang Zilong Zhang Qingping Ke Wei Chen School of Chemical Engineering Northeast Electric Power UniversityJilin 132012China Industrial Catalysis Institute of Zhejiang University of Technology Hangzhou 310014China Key Laboratory of Carbon Materials of Zhejiang Province College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China College of Chemistry and Chemical Engineering Anhui University of TechnologyMaanshan 243002China

In this study,a novel non-metallic carbon-based catalyst co-doped with boron and nitrogen(B,N)was successfully *** precisely controlling the carbonization temperature of a binary mixed ionic liquid,we selectively modified the doping site structure,ultimately constructing a B,N co-doped frustrated Lewis acid-base pair *** catalyst exhibited remarkable catalytic activity,selectivity,and stability in the dehydrochlorination reaction of 1,1,2-trichloroethane(TCE).Detailed characterization and theoretical calculations revealed that the primary active center of this catalyst was the BN_(3)*** to conventional graphitic N structures,the BN_(3)structure had a higher p-band center,ensuring superior adsorption and activation capabilities for TCE during the *** the BN_(3)site,three negatively charged nitrogen atoms acted as Lewis bases,while positively charged boron atoms acted as Lewis *** synergistic interaction facilitated the specific dissociation of chlorine and hydrogen atoms from TCE,significantly enhancing the 1,1-dichloroethene *** this research,we not only explored the active site structure and catalytic mechanism of B,N co-doped catalysts in depth but also provided an efficient,selective,and stable catalyst for the dehydrochlorination of TCE,contributing significantly to the development of non-metallic catalysts.

关键词： B N co-doped sites dehydrochlorination frustrated Lewis acid-base pairs catalytic mechanism

A Dietary Supplement Jinghuosu Ameliorates Reproductive Damage Induced by Tripterygium Glycosides

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Chinese Journal of Integrative Medicine 2024年第4期30卷 330-338页

作者： MA Jing SUN Bo TE Li-ger HUANG Xin zuo Xin HAN Xiao-ke WANG Shu-song Hebei Key Laboratory of Reproductive Medicine Hebei Institute of Reproductive HealthHebei Reproductive Health HospitalShijiazhuang(050071)China Graduate School of Hebei Medical University Shijiazhuang(050017)China School of Chemistry and Materials Science Hebei Normal UniversityShijiazhuang(050024)China Xingtai Infertility Specialist Hospital XingtaiHebei Province(054000)China

Objective To determine the possible protective effects of Jinghuosu,a dietary supplement(DS),on tripterygium glycosides(TG)-induced reproductive system injury in rats and its underlying *** A reproductive damage model was established in rats by feeding of ***-eight male Sprague Dawley rats were randomly divided into 4 groups using a random number table(n=7 in each):control(C)group,model(M)group,DS group and L-carnitine(LC)*** in M,DS and LC groups received 40 mg/kg TGs *** from the 5th week,after administration of TGs for 4 h every day,rats in DS and LC groups were administered with 2.7 g/kg DS and 0.21 g/kg LC,respectively,for protective treatment over the next 4 *** in Group C continued to receive the control ***-eosin staining was used for histopathological analysis of rat testicular ***-linked immunosorbent assay was performed to measure alkaline phosphatase(ALP),lactate dehydrogenase,alcohol dehydrogenase,total antioxidant capacity(T-AOC),superoxide dismutase,glutathione peroxidase(GSH-Px),and malondialdehyde(MDA)*** assay was used to determine the serum testosterone *** real-time PCR and Western blotting were conducted to analyze the expression of genes and proteins related to the testosterone synthesis pathway and the nuclear factor erythroid 2-related factor 2/heme oxygenase 1 antioxidant *** Oral administration of TGs induced significant increases in the testicular levels of zinc transporter 1 and MDA(Pductase 1 levels decreased following TG

关键词： dietary supplement Jinghuosu tripterygium glycosides reproductive damage infertility

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氦氩射频容性放电发射光谱分析

物理学报 2018年第14期67卷 195-201页

作者：张秩凡高俊雷鹏周素素王新兵左都罗华中科技大学武汉光电国家研究中心武汉430074

光抽运亚稳态稀有气体激光器利用放电等离子体作为激光的增益介质.为掌握容性射频放电的放电参数对等离子体各项参数的影响的基本规律,利用等离子体发射光谱法研究了氦氩混合气体在不同装置、不同Ar组分、不同气压和不同射频注入功率下... 详细信息

光抽运亚稳态稀有气体激光器利用放电等离子体作为激光的增益介质.为掌握容性射频放电的放电参数对等离子体各项参数的影响的基本规律,利用等离子体发射光谱法研究了氦氩混合气体在不同装置、不同Ar组分、不同气压和不同射频注入功率下的等离子体参数.利用残留水蒸气产生的OH自由基A^2Σ^+→X^2Π的转动光谱分析获得气体温度;利用电子态光谱的玻尔兹曼做图法获得电子激发温度,利用Ar原子696.5 nm谱线的斯塔克展宽获得电子密度.结果表明:气体温度随气压增加略微上升,在一个大气压下改变组分和放电功率,气体温度变化不大;电子激发温度随总气压的下降而上升,且随着Ar组分的增加而略微下降;目前放电条件下的电子密度均在10^(15)cm^(-3)量级;长时间放电监测表明,残留的水蒸气会导致电子温度的下降,从而降低Ar亚稳态的产率.

关键词：光泵亚稳态氩气激光器射频放电发射光谱分析

Catalytic activation of peroxodisulfate using shape-controlled cerium-manganese composite oxide for phenol degradation:Kinetics and degradation pathway investigation

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Journal of Rare Earths 2024年第8期42卷 1514-1523,I0004页

作者： Yanxia Zheng Lixi Yang Chuxin Huang Yuchao Li Cuncun zuo Tingting Ge Haofei Huang Jiutao An Ming Wang Yansong Zhao Institute of Clean Chemical Technology School of Chemistry and Chemical EngineeringShandong University of TechnologyZibo255000China Shandong Collegial Engineering Research Center of Novel Rare Earth Catalysis Materials Shandong University of TechnologyZibo255000 China College of Resources and Environment Engineering Shandong University of TechnologyZibo255000China Department of Safety Chemistry and Biomedical Laboratory SciencesFaculty of Engineering and ScienceWestern Norway University of Applied Sciences(HVL)5063BergenNorway

Phenol-containing wastewater is typical organic wastewater,and its treatment is *** advanced method to treat this type of wastewater is persulfate *** friendly ceriummanganese composite oxide materials were synthesized by hydrothermal method and applied to the phenol degradation *** ratios of cerium and manganese,as well as the amount of sodium hydroxide,were *** solid solutions of cerium and manganese were formed and confirmed by X-ray diffraction(XRD) and transmission electron microscopy(TEM).H_(2)-temperature programmed reduction(H_(2)-TPR) and X-ray photoelectron spectroscopy(XPS) were utilized to analyze the synergistic effect of cerium and *** is found that there is a transformation between Ce^(4+)/Ce^(3+) and Mn^(2+)/Mn^(3+),which makes the material more trivalent manganese and thereby increases the catalytic *** effect of materials in catalyzing phenol degradation by peroxodisulfate(PDS) under various preparation conditions is discussed and high-effciency removal of phenol can be achieved and the removal rate at 180 min is close to 100%.The kinetic of this process was investigated and activation energy of phenol degradation is 62,35 kJ/*** degradation pathway of phenol was studied and it is found that PDS can be activated by low metal ions and the OH and SO_(4·)^(-)radicals play crucial roles according to the quenching experiments.

关键词： Advanced oxidation process Persulfate Mn-Ce solid solution Phenol degradation Rare earths

早产儿加温湿化高流量经鼻导管通气初始呼吸支持失败的危险因素分析

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中国当代儿科杂志 2021年第9期23卷 896-902页

作者：杜坐平肖传絮曾义协陈凯福建医科大学附属宁德市闽东医院新生儿科福建宁德355000

目的分析早产儿加温湿化高流量鼻导管通气(heated humidifiedhigh-flow nasalcannula,HHHFNC)初始呼吸支持失败的危险因素。方法回顾性收集2018年1月至2021年4月收治的生后使用HHHFNC初始呼吸支持的早产儿病例资料,根据治疗后72 h内是... 详细信息

目的分析早产儿加温湿化高流量鼻导管通气(heated humidifiedhigh-flow nasalcannula,HHHFNC)初始呼吸支持失败的危险因素。方法回顾性收集2018年1月至2021年4月收治的生后使用HHHFNC初始呼吸支持的早产儿病例资料,根据治疗后72 h内是否需升级为无创持续气道正压通气或有创机械通气,分为呼吸支持失败组和成功组,采用单因素分析与多因素logistic回归分析HHHFNC呼吸支持失败的危险因素。结果共纳入166例早产儿,HHHFNC呼吸支持失败48例(28.9%)。单因素分析结果显示:呼吸支持失败组胎龄、出生体重均低于成功组(n=118),吸入氧浓度>35%、流量>6 L/min、发生动脉导管未闭(patent ductusarteriosus,PDA)、诊断新生儿呼吸窘迫综合征(respiratory distresssyndrome,RDS)、使用肺表面活性物质治疗比例均高于成功组(P1.5 mm且左心房∶主动脉内径>1.4、吸入氧浓度>35%、流量>6 L/min、RDS是HHHFNC初始呼吸支持失败的危险因素(P35%和/或流量>6 L/min,或出现PDA时,呼吸支持失败的风险增大,应积极考虑升级呼吸支持方式。

关键词：加温湿化高流量鼻导管通气危险因素早产儿

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水溶性低分子量壳聚糖的制备工艺研究

海峡药学 2020年第9期32卷 8-10页

作者：赵坐都厦门蓝湾科技有限公司福建厦门361027

目的为达到快速、批量生产低分子量壳聚糖的目的,放弃单一利用化学、物理或生物方法催化降解生产低分子量的工艺。方法我们采用超声波高能轰击作为反应条件降解经乙酸与过氧化氢预处理的高分子量壳聚糖;利用高速离心喷雾干燥机干燥其水... 详细信息

目的为达到快速、批量生产低分子量壳聚糖的目的,放弃单一利用化学、物理或生物方法催化降解生产低分子量的工艺。方法我们采用超声波高能轰击作为反应条件降解经乙酸与过氧化氢预处理的高分子量壳聚糖;利用高速离心喷雾干燥机干燥其水溶液的方法进行制备。结果最终研究出一种新的能够快速、稳定、批量化生产出水溶性良好的低分子量壳聚糖的制备工艺。结论该方法为有高吸湿、高热敏、易氧化等特点的类似产品开发提供了技术参考。

关键词：水溶性壳聚糖降解喷雾干燥

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多媒体数据库系统的设计与实现

牡丹江师范学院学报（自然科学版） 2008年第2期34卷 35-36页

作者：杜作阳华南师范大学南海校区计算机工程系广东南海528225

基于Oracle8i数据库管理系统的新增特点,利用面向对象的方法设计了一种多媒体数据库系统,实现多媒体数据的存储、管理,确保了数据库中数据的安全性。

关键词：多媒体数据库系统大型对象(LOB)数据类型抽象数据类型连接对象语句对象权限管理

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数据结构教学改革的研究

高教论坛 2007年第6期 46-48页

作者：杜作阳华南师范大学计算机学院广东广州510631

数据结构的重要性毋庸多说,而且数据结构教学已经比较成熟,但是,近几年来由于社会的发展,数据结构的教学面临很大问题,越来越流于形势,无法跟上时代的发展。探讨"数据结构"课程的教学改革,从实践的角度出发介绍该课程教学的若干方法与... 详细信息

数据结构的重要性毋庸多说,而且数据结构教学已经比较成熟,但是,近几年来由于社会的发展,数据结构的教学面临很大问题,越来越流于形势,无法跟上时代的发展。探讨"数据结构"课程的教学改革,从实践的角度出发介绍该课程教学的若干方法与体会。总结很多学者的经验我们提出自己的一种新的教学模式。

关键词：数据结构教学模式电子批阅

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西药房处方调剂差错与防范分析

世界最新医学信息文摘 2018年第57期 62-63页

作者：杜佐璋广西河池市第一人民医院药剂科

药房是一个面向社会服务的重要窗口,其主要职责是给患者合理调配药物,确保处方质量能够有效治疗患者的相应症状,提高临床治疗效果。近年来,随着国家医疗技术的快速提升,西药房的工作程序日渐繁琐,再加上医院患者的流动性较强和涉及的范... 详细信息

药房是一个面向社会服务的重要窗口,其主要职责是给患者合理调配药物,确保处方质量能够有效治疗患者的相应症状,提高临床治疗效果。近年来,随着国家医疗技术的快速提升,西药房的工作程序日渐繁琐,再加上医院患者的流动性较强和涉及的范围较广,容易出现工作上的纰漏,导致西药房整体工作质量下降。目前,随着人们对医疗服务质量的要求日益提升,故降低西药房处方调剂已成为医院管理关注的焦点问题。为了提高医院整体医疗服务,降低西药房的处方调剂差错率,本文主要从西药房处方调剂差错的原因分析入手,通过原因分析来探讨出可靠的预防措施。

关键词：西药房处方调剂预防措施