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稻壳灰基沸石吸附废水中Cr(Ⅵ)的教学实验探究

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山西建筑 2024年第20期50卷 106-109,152页

作者：程妍康华丁淑芳王会平李光岩黑龙江科技大学矿业工程学院黑龙江哈尔滨150022

基于科研课题,设计了以稻壳灰基沸石吸附废水中Cr(Ⅵ)的教学实验,结合X射线衍射仪、扫描电子显微镜和氮气吸附-脱附测试等现代测试方法对稻壳灰基沸石的物相组成、微观形貌及孔结构特性进行表征,并测定稻壳灰基沸石对Cr(Ⅵ)的吸附性能... 详细信息

基于科研课题,设计了以稻壳灰基沸石吸附废水中Cr(Ⅵ)的教学实验,结合X射线衍射仪、扫描电子显微镜和氮气吸附-脱附测试等现代测试方法对稻壳灰基沸石的物相组成、微观形貌及孔结构特性进行表征,并测定稻壳灰基沸石对Cr(Ⅵ)的吸附性能。该实验的开展不仅为重金属废水所带来的环境问题提供了有效解决途径,还深化了学生关于矿物表面结构与性能关系的理解,强化了学生在环境保护和资源优化方面对矿物应用的认知,从而提升了解决实际工程问题的分析和综合实践能力,并掌握了系统化的科学研究方法。

关键词：稻壳灰基沸石 Cr(Ⅵ) 吸附性能

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围产期及产后妇女避孕干预与效果评价

中国计划生育学杂志 2024年第1期32卷 33-38页

作者：王燕霞单莉楚光华王慧萍夏丽娜姚锦王柳张咪西安医学院 710054 西北妇女儿童医院

目的:探究关中、陕南、陕北孕产妇避孕节育干预现状及效果.方法:选取2021年1月1日-6月1日在入选医院定期产检并住院分娩的孕产妇作为研究对象,对照组(2612例)进行常规产后保健及避孕指导,观察组(2701例)在此基础上增加孕期、住院分娩期... 详细信息

目的:探究关中、陕南、陕北孕产妇避孕节育干预现状及效果.方法:选取2021年1月1日-6月1日在入选医院定期产检并住院分娩的孕产妇作为研究对象,对照组(2612例)进行常规产后保健及避孕指导,观察组(2701例)在此基础上增加孕期、住院分娩期、出院时的产后保健及避孕指导.在出院后0~3个月、4~6个月、7~9个月、10~12个月入户访视所有对象并填写自制调查问卷,且进行分析.结果:产后不同时段避孕率、累积避孕率观察组均高于对照组(P<0.05).产后1年,观察组避孕率(97.0%)高于对照组(73.7%),观察组累计避孕率(90.6%)高于对照组(65.7%).观察组产后IUD使用率(25.9%)高于对照组(1.2%)均有统计学差异(P<0.05).观察组非计划妊娠率(0.5%)低于对照组(1.0%),差异有统计学意义(P<0.05).结论:孕期、围产期及产后入户访视的综合避孕宣教能有效提高产后妇女避孕意识,提高产后避孕率,降低产后妇女非计划妊娠率.

关键词：产妇产后避孕干预及效果评价

Product Defect Management of Children's Toys Made in China——A renection on the two-year implementation of Children's toys recall system

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China Standardization 2009年第5期54卷 31-39页

作者： wang huiping Defective Product Administrative Center of AQSIQ

The Management Regulations on Recallof Children's Toys is a recall system based onthe Management Regulations on Recall of MotorVehicles in *** its two years,the children'stoy recall management system has helped toprevent and eliminate damage caused by defectivechildren's *** has also helped to protect children'shealth and safety,safeguard public safetyand interest,and improve toy manufacturers' productquality and safety ***,due tothe small scale of most Chinese toy manufacturers,and the low standard of management,more effort isneeded from government departments and thecommunity to improve the recall system.

关键词： toy recall quality and safety status analysis

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铝镁合金铸件针孔和偏析缺陷特点及分析

铸造工程 2024年第S1期48卷 16-24页

作者：章林强周鹏飞吴振成陈辉王辉平上海航天精密机械研究所上海210016 新江科技(江苏)有限公司江苏南通226141

对铝镁合金铸件疏松、偏析类缺陷种类、形成机理及其安全使用风险进行了系统的分析,通过X射线、电镜扫描观察铸件不同程度的疏松、偏析组织的微观形貌,并结合力学性能、化学成分检测数据分析评估各类型缺陷对产品使用性能的影响,指出铝... 详细信息

对铝镁合金铸件疏松、偏析类缺陷种类、形成机理及其安全使用风险进行了系统的分析,通过X射线、电镜扫描观察铸件不同程度的疏松、偏析组织的微观形貌,并结合力学性能、化学成分检测数据分析评估各类型缺陷对产品使用性能的影响,指出铝镁合金铸件疏松、偏析缺陷安全使用的判定方法,为产品的检测和质量保证提供参考。

关键词：铝镁合金铸件针孔偏析检测缺陷分析

Activation of Transition Metal(Fe,Co and Ni)-Oxide Nanoclusters by Nitrogen Defects in Carbon Nanotube for Selective CO_(2) Reduction Reaction

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Energy & Environmental Materials 2023年第1期6卷 253-263页

作者： Yi Cheng Jinfan Chen Chujie Yang huiping wang Bernt Johannessen Lars Thomsen Martin Saunders Jianping Xiao Shize Yang San Ping Jiang Institute of Environmental Science and Engineering School of Metallurgy and EnvironmentCentral South UniversityChangsha 410083China Institute of Materials China Academy of Engineering PhysicsP.O.Box 9071-12Mianyang 621907China Australian Synchrotron ANSTOClayton Vic.3168Australia Centre for Microscopy Characterization and Analysis(CMCA)The University of Western AustraliaCrawley WA 6009Australia State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Eyring Materials Center Arizona State UniversityTempe AZ 85257USA WA School of Mines:Minerals Energy&Chemical EngineeringCurtin UniversityPerth WA 6102Australia

The electrochemical carbon dioxide reduction reaction(CO_(2)RR),which can produce value-added chemical feedstocks,is a proton-coupled-electron process with sluggish ***,highly efficient,cheap catalysts are urgently *** metal oxides such as CoO_(x),FeO_(x),and NiO_(x)are low-cost,low toxicity,and abundant materials for a wide range of electrochemical reactions,but are almost inert for CO_(2)***,we report for the first time that nitrogen doped carbon nanotubes(N-CNT)have a surprising activation effect on the activity and selectivity of transition metal-oxide(MO_(x)where M=Fe,Ni,and Co)nanoclusters for CO_(2)***_(x)supported on N-CNT,MO_(x)/N-CNT,achieves a CO yield of 2.6–2.8 mmol cm−2 min−1 at an overpotential of−0.55 V,which is two orders of magnitude higher than MO_(x)supported on acid treated CNTs(MO_(x)/O-CNT)and four times higher than pristine *** faraday efficiency for electrochemical CO_(2)-to-CO conversion is as high as 90.3%at overpotential of 0.44 *** in-situ XAS measurements and DFT calculations disclose that MO_(x)nanoclusters can be hydrated in CO_(2)saturated KHCO_(3),and the N defects of N-CNT effectively stabilize these metal hydroxyl species under carbon dioxide reduction reaction conditions,which can split the water molecules and provide local protons to inhibit the poisoning of active sites under carbon dioxide reduction reaction conditions.

关键词： activation effect electrochemical CO_(2)reduction reaction N defect proton-coupled electron transfer process transition metal oxide nanocluster

奥马珠单抗治疗儿童和老年慢性自发性荨麻疹患者的短期疗效及安全性

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中国皮肤性病学杂志 2024年第1期38卷 40-44页

作者：严彩蓉亓玉青隋秀丽刘瑞玲苏畅曹毅群姜虹王惠平天津医科大学总医院皮肤性病科/天津性传播疾病研究所天津300052 天津医科大学总医院变态反应科天津300052

目的探讨奥马珠单抗治疗儿童和老年慢性自发性荨麻疹患者的短期疗效及安全性。方法对2020年6月—2022年10月于天津医科大学总医院门诊就诊并使用奥马珠单抗治疗的儿童(65岁)慢性自发性荨麻疹患者的相关临床资料进行分析。结果 33例儿... 详细信息

目的探讨奥马珠单抗治疗儿童和老年慢性自发性荨麻疹患者的短期疗效及安全性。方法对2020年6月—2022年10月于天津医科大学总医院门诊就诊并使用奥马珠单抗治疗的儿童(65岁)慢性自发性荨麻疹患者的相关临床资料进行分析。结果 33例儿童组患者注射1次后51.52%完全缓解,42.42%部分缓解;24例老年组患者注射1次后45.83%完全缓解,29.17%部分缓解;治疗期间随注射次数增加,两组缓解率持续提高并保持较高水平,且相关评分持续好转,无严重不良反应出现。与老年患者相比,儿童患者出现其他过敏性共病的几率更高,疾病严重程度更轻,总IgE水平更高,对奥马珠单抗治疗的应答比例更高(P<0.05)。8例患者停药后复发,重新启动奥马珠单抗治疗仍然有效。结论儿童及老年慢性自发性荨麻疹患者使用奥马珠单抗治疗的疗效显著,安全性良好,且儿童患者疗效优于老年患者。

关键词：荨麻疹慢性自发性儿童老年奥马珠单抗疗效安全性

基于儿童早期预警评分的分级干预模式促进重症肺炎患儿康复进程及对呼吸功能的影响

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广州医药 2024年第8期55卷 929-933页

作者：李翠娥孙岚郑秋芳陈伟琴王慧娉泉州市妇幼保健院(泉州市儿童医院)重症医学科福建泉州362000 泉州市妇幼保健院(泉州市儿童医院)呼吸科福建泉州362000

目的研究基于儿童早期预警评分(PEWS)的分级干预模式促进重症肺炎患儿康复进程及对呼吸功能的影响。方法回顾性分析2021年4月—2023年4月我院收治的100例重症肺炎患儿临床资料。将其按照干预方式的差异分为研究组(n=50)及对照组(n=50)... 详细信息

目的研究基于儿童早期预警评分(PEWS)的分级干预模式促进重症肺炎患儿康复进程及对呼吸功能的影响。方法回顾性分析2021年4月—2023年4月我院收治的100例重症肺炎患儿临床资料。将其按照干预方式的差异分为研究组(n=50)及对照组(n=50)。对照组选用常规干预,研究组则于对照组基础上增加基于PEWS的分级干预。对比两组康复进程(相关指标涵盖症状持续时长及住院天数)、呼吸功能(涵盖通气流速、每分钟最大通气量、肺活量、用力肺活量及深吸气量)、并发症发生情况(涵盖呼吸机相关性肺炎、肺大疱及胸膜炎)、患儿家属满意度。结果研究组各项症状持续时长及住院天数均短于对照组(均P0.05)。研究组患儿家属满意度高于对照组(96.00%vs 82.00%,P<0.05)。结论基于PEWS的分级干预模式促进重症肺炎患儿康复进程的效果较佳,且能改善呼吸功能,提高患儿家属满意度。

关键词：重症肺炎儿童早期预警评分分级干预模式康复进程呼吸功能

Outcomes of allograft from donor kidney microthrombi and secondary recipient thrombotic microangiopathy: should we consider loosening the belt?

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2023年第6期24卷 524-529页

作者： Yamei CHENG Luying GUO Xue REN Zhenzhen YANG Junhao LV huiping wang Wenhan PENG Hongfeng HUANG Jianyong WU Jianghua CHEN Rending wang Kidney Disease Center the First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhou 310003China Key Laboratory of Kidney Disease Prevention and Control Technology Zhejiang ProvinceHangzhou 310003China National Key Clinical Department of Kidney Diseases Hangzhou 310003China Institute of Nephrology Zhejiang UniversityHangzhou 310003China Zhejiang Clinical Research Center of Kidney and Urinary System Disease Hangzhou 310003China

There is currently a huge worldwide demand for donor kidneys for organ ***,numerous marginal donor kidneys,such as kidneys with microthrombi,are used to save patients'*** some studies have shown an association between the presence of microthrombi in donor kidneys and an increased risk for delayed graft function(DGF)(McCall et al.,2003;Gao et al.,2019),other studies have demonstrated that microthrombi negatively impact the rate of DGF(Batra et al.,2016;Hansen et al.,2018),but not graft survival rate(McCall et al.,2003;Batra et al.,2016;Gao et al.,2019).In contrast,Hansen et al.(2018)concluded that fibrin thrombi were not only associated with reduced graft function six months posttransplantation but also with increased graft loss within the first year of *** the other hand,Batra et al.(2016)found no significant differences in the DGF rate or one-year graft function between recipients in diffuse and focal microthrombi *** date,however,the overall influence of donor kidney microthrombi and the degree of influence on prognosis remain controversial,necessitating further research.

关键词： kidney throm donor

Co-inoculation of Debaryomyces hansenii and lactic acid bacteria: A strategy to improve the taste and odour profiles of dry sausages

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Food Science and Human Wellness 2023年

作者： Rongxin Wen huiping wang Baohua Kong Ligang Qin Qian Chen College of Food Science， Northeast Agricultural University College of Life Sciences， Yantai University

The effects of the co-inoculation of Debaryomyces hansenii separately with three lactic acid bacteria (LAB)， Lactobacillus sakei， Lactobacillus plantarum and Lactobacillus curvatus， on the taste and odour profiles of dry sausages were investigated. The co-inoculated sausages showed higher free amino acid and organic acid contents than the non-inoculated control and sausages inoculated with D. hansenii alone. Meanwhile， the sausages inoculated with D. hansenii + L. plantarum， D. hansenii + L. sakei and D. hansenii + L. curvatus had the highest contents of aldehydes， esters and alcohols， respectively. The results of electronic tongue， electronic nose and sensory evaluation demonstrated that compared with the Dh sausage， the sour taste and floral odour increased and the fatty odour decreased in the D. hansenii + L. sakei sausage; this was more favourable for the development of a desirable flavour in sausages. Moreover， the partial least squares regression analysis indicated that ten taste and 33 odour compounds were mainly responsible for the differences in the flavour profiles among the sausages. Overall， these findings contributed to a more comprehensive understanding of the formation of sensory characteristics in dry sausages co-inoculated with yeast and LAB.

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