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消痔灵灌注联合负压抽吸治疗腋臭的效果

西北药学杂志 2024年第4期39卷 192-195页

作者：昌泓黄新建徐永飞河南科技大学第一附属医院整形美容中心洛阳471000

目的观察并比较单一负压抽吸术与负压抽吸联合消痔灵灌注治疗腋臭的临床疗效及并发症发生情况,探讨联合治疗对腋臭患者异味程度和生活质量的影响。方法选取收治的81例首次治疗腋臭的患者,随机分为负压抽吸组(39例)与联合治疗组(42例)。... 详细信息

目的观察并比较单一负压抽吸术与负压抽吸联合消痔灵灌注治疗腋臭的临床疗效及并发症发生情况,探讨联合治疗对腋臭患者异味程度和生活质量的影响。方法选取收治的81例首次治疗腋臭的患者,随机分为负压抽吸组(39例)与联合治疗组(42例)。抽吸组给予单一负压抽吸术治疗,联合治疗组给予负压抽吸联合消痔灵灌注治疗。比较2种治疗方法的临床疗效及并发症发生情况。结果术后随访3~6个月,负压抽吸组的伤口愈合时间长于联合治疗组(P<0.05);负压抽吸组的总有效率(84.62%)低于联合治疗组(100.00%),P<0.05;负压抽吸组的并发症总发生率(26.92%)高于联合治疗组(13.10%),P<0.05;负压抽吸组患者的生活质量评分显著低于联合治疗组(P<0.05)。结论消痔灵灌注联合负压抽吸对于腋臭的治疗效果优于单一负压抽吸治疗,且能显著降低并发症的发生,减轻腋臭患者的异味程度,改善其生活质量。

关键词：消痔灵灌注负压抽吸腋臭

Amino-functionalized porous PDVB with high adsorption and regeneration performance for fluoride removal from water

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Green Chemical Engineering 2021年第2期2卷 224-232页

作者： Yuanyuan Huang Xianbiao Wang yongfei xu Shaojie Feng Jin Liu Huanting Wang Anhui Province International Research Center on Advanced Building Materials School of Materials Science and Chemical EngineeringAnhui Jianzhu UniversityHefei230601China Institute of Solid State Physics Chinese Academy of SciencesHefei230031China Anhui Institute of Building Science Research and Design Hefei230001China Department of Chemical Engineering Monash UniversityClaytonVictoria3800Australia

Excessive fluoride anions in drinking water are toxic to the health of human *** this article,an effective fluoride removal adsorbent on the basis of amino-functionalized porous polydivinylbenzene(PDVB)was prepared through low cost processes,which included solvothermal preparation of porous PDVB and subsequent surface *** obtained amino-functionalized porous PDVB(A-PDVB)has high surface area of 443 m2 g1 and high adsorption capacity towards fluoride anion up to 105.9 mg *** adsorbents surface area,the adsorption capacity per unit surface area of A-PDVB is 0.24 mg m2 which is more than 4 times of porous PDVB(0.058 mg m2).The enhanced adsorption performance of A-PDVB was due to amino groups electrostatic interaction coupled with hydrogen bond binding with fluoride *** addition,the aminofunctionalized porous PDVB could be regenerated in high efficiency under alkaline *** work not only exhibits the possibility of A-PDVB for application as an environment-friendly adsorbent for fluoride removal but also gives an insight into understanding mechanism of the fluoride anions adsorption onto aminofunctionalized porous PDVB.

关键词： Amino-functionalization Porous polydivinylbenzene(PDVB) Adsorption Regeneration Fluoride anion

Microwave-assisted exploration of the electron configuration-dependent electrocatalytic urea oxidation activity of 2D porous NiCo_(2)O_(4) spinel

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Journal of Energy Chemistry 2024年第4期91卷 226-235页

作者： Jun Wan Zhiao Wu Guangyu Fang Jinglin Xian Jiao Dai Jiayue Guo Qingxiang Li yongfei You Kaisi Liu Huimin Yu Weilin xu Huiyu Jiang Minggui Xia Huanyu Jin State Key Laboratory of New Textile Materials and Advanced Processing Technologies Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing&FinishingWuhan Textile UniversityWuhan 430200HubeiChina Institute for Sustainability Energy and ResourcesThe University of AdelaideAdelaideSA 5005Australia Future Industries Institute University of South AustraliaMawson Lakes CampusAdelaideSA 5095Australia

Urea holds promise as an alternative water-oxidation substrate in electrolytic ***-valence nickelbased spinel,especially after heteroatom doping,excels in urea oxidation reactions(UOR).However,traditional spinel synthesis methods with prolonged high-temperature reactions lack kinetic precision,hindering the balance between controlled doping and highly active two-dimensional(2D)porous structures *** significantly impedes the identification of electron configuration-dependent active sites in doped 2D nickel-based ***,we present a microwave shock method for the preparation of 2D porous NiCo_(2)O_(4)*** the transient on-off property of microwave pulses for precise heteroatom doping and 2D porous structural design,non-metal doping(boron,phosphorus,and sulfur)with distinct extranuclear electron disparities serves as straightforward examples for *** tuning of lattice parameter reveals the impact of covalent bond strength on NiCo_(2)O_(4)structural *** introduced defect levels induce unpaired d-electrons in transition metals,enhancing the adsorption of electron-donating amino groups in urea ***,Bode plots confirm the impact mechanism of rapid electron migration caused by reduced band gaps on UOR *** prepared phosphorus-doped 2D porous NiCo_(2)O_(4),with optimal electron configuration control,outperforms most reported *** controlled modification strategy advances understanding theoretical structure-activity mechanisms of high-performance 2D spinels in UOR.

关键词： 2D materials Spinel Microwave Electrocatalysis Urea oxidation reaction

SiO_(2)气凝胶在厚质建筑绝热涂料中的应用研究

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上海涂料 2023年第2期61卷 1-5页

作者：徐永飞安徽省建筑科学研究设计院安徽合肥230001

以弹性建筑乳液和聚丙烯酸酯乳液为成膜物质,以空心玻璃微珠和SiO_(2)气凝胶为功能性填料,按合成树脂乳液涂料配制原理制备了厚质建筑绝热涂料。研究了在添加SiO_(2)气凝胶时,相应调整和不调整成膜物质添加量两种情况下,不同SiO_(2)气... 详细信息

以弹性建筑乳液和聚丙烯酸酯乳液为成膜物质,以空心玻璃微珠和SiO_(2)气凝胶为功能性填料,按合成树脂乳液涂料配制原理制备了厚质建筑绝热涂料。研究了在添加SiO_(2)气凝胶时,相应调整和不调整成膜物质添加量两种情况下,不同SiO_(2)气凝胶添加量对涂层导热系数、干密度和拉伸强度的影响,并分析了造成这些影响的可能原因。结果表明,在不调整成膜物质添加量的情况下,随着SiO_(2)气凝胶添加量的增加,涂层的导热系数、干密度和拉伸强度都逐渐降低;在调整成膜物质添加量以使涂层的拉伸强度保持和基础涂料相当水平的情况下,SiO_(2)气凝胶的添加对降低涂层导热系数的效果显著降低,且涂层的干缩率较高。

关键词： SiO_(2)气凝胶绝热涂料厚质导热系数拉伸强度干缩率干密度

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铜冶炼废水处理添加剂影响作用的实验研究

山西冶金 2023年第6期46卷 55-56,59页

作者：徐永飞江铜铜箔科技股份有限公司江西南昌330000

铜冶炼过程中产生的废水含有大量的氟离子会对环境造成危害,采用沉淀法进行冶炼废水的处理可以有效降低氟离子的浓度,达到国家排放标准。因此,针对不同的添加剂用量对废水氟离子的影响作用进行实验研究,结果表明,采用硫酸铝进行除氟处理... 详细信息

铜冶炼过程中产生的废水含有大量的氟离子会对环境造成危害,采用沉淀法进行冶炼废水的处理可以有效降低氟离子的浓度,达到国家排放标准。因此,针对不同的添加剂用量对废水氟离子的影响作用进行实验研究,结果表明,采用硫酸铝进行除氟处理,对硫酸铝添加剂的用量要求较少,可以提高废水处理的综合效益。

关键词：冶炼废水氟离子沉淀法除氟率

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离心机试验中惯导平台误差系数辨识方法

国防科技大学学报 2017年第1期39卷 46-50页

作者：许永飞张士峰国防科技大学航天科学与工程学院湖南长沙410073

针对离心机试验中惯导平台误差系数辨识问题,提出一种6位置辨识方案。建立误差系数辨识的非线性模型,再利用扩展卡尔曼滤波估计误差系数。由滤波中的估值方差矩阵计算各误差系数之间的相关系数,用相关系数分析系统的可观性,并将所有相... 详细信息

针对离心机试验中惯导平台误差系数辨识问题,提出一种6位置辨识方案。建立误差系数辨识的非线性模型,再利用扩展卡尔曼滤波估计误差系数。由滤波中的估值方差矩阵计算各误差系数之间的相关系数,用相关系数分析系统的可观性,并将所有相关系数之和最小作为优化指标,利用遗传算法得到最优的位置组合。仿真结果表明,采用该方案可以有效辨识出惯导平台中与加速度高阶项有关的各项误差系数。

关键词：惯导平台离心机试验相关系数参数辨识

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采空区积水对隔水煤柱的影响及留设实践

山西化工 2023年第2期43卷 128-129,134页

作者：徐永飞山西古县兰花宝欣煤业有限公司山西临汾042405

对采空区积水留设防隔水煤柱是煤矿企业防治水的重点工作。通过对宝欣煤矿矿井及周边矿井的物探调研,对隔水煤柱的形变规律进行了三组试验,结果显示煤柱力学强度受积水浸泡将会在20 d内快速降低,随后进入稳定期。最终根据经验公式计算... 详细信息

对采空区积水留设防隔水煤柱是煤矿企业防治水的重点工作。通过对宝欣煤矿矿井及周边矿井的物探调研,对隔水煤柱的形变规律进行了三组试验,结果显示煤柱力学强度受积水浸泡将会在20 d内快速降低,随后进入稳定期。最终根据经验公式计算隔水煤柱的安全宽度41.8 m,顺利完成资源回采。

关键词：隔水煤柱采空区积水防治水

Riverine sulfate sources and behaviors in arid environment,Northwest China:Constraints from sulfur and oxygen isotopes

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Journal of Environmental Sciences 2024年第3期137卷 716-731页

作者： Yifu xu Wenjing Liu Bing xu Zhifang xu Key Laboratory of Cenozoic Geology and Environment Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China Innovation Academy for Earth Science Chinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China

The fate of riverine sulfate ion (SO_(4)^(2-)) and its environmental effects in arid environment are difficult to evaluate due to its complicated sources and strongly coupled behaviors with water cycle which is significantly modified by *** understand the sulfur cycle in aquatic systems in arid environment,the chemical and sulfur and oxygen isotopic compositions (δ^(34)S_(SO4)and δ^(18)O_(SO4)) of major rivers around the Badain Jaran Desert,northwestern China,were *** rivers had averaged SO_(4)^(2-)content at 1336μmol/L,over 10times higher than the global *** δ^(34)S_(SO4)and δ^(18)O_(SO4)values ranged from-5.3‰to+11.8‰and+1.6‰to+12.8‰,*** end-member analysis and the inverse model showed that riverine sulfate was mainly derived from evaporites dissolution (0-87%),sulfide oxidation (13%-100%) and precipitation (0-33%),indicating heterogeneity in sulfur sources and behaviors along the river drainage with the lithology variations and climate *** isotopic tools combining with hydro-chemistry compositions could be applied to reveal sulfur cycle in arid *** on the calculation,sulfide oxidation plays the primary role in the headwater and upstream in the Qilian-Mountains area,where sulfide is widely *** the proportion of evaporites dissolution contributing to riverine sulfate is much higher in downstream in a drier ***,less precipitation and higher temperature can lead to more intensive evaporation,affecting the process of sulfide oxidation and enhancing the rates of evaporites dissolution and sulfate precipitation in the basin.

关键词： Sulfur and oxygen isotopes Source apportionment Inverse model Arid environment Inland rivers Northwestern China

Laboratory evaluation of high-friction thin overlays for pavement preservation

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Frontiers of Structural and Civil Engineering 2024年第6期18卷 936-948页

作者： Ouming xu Rentao xu Lintong JIN School of Highway Chang’an UniversityXi’an 710064China School of Materials Science and Engineering Chang’an UniversityXi’an 710061China

Traditional asphalt concrete(AC)and stone matrix asphalt(SMA),which are used as thin asphalt overlays,are common maintenance strategies to enhancing ride quality,skid resistance,and ***,several studies have used a novel asphalt mixture known as a high-friction thin overlay(HFTO)to improve surface ***,it remains uncertain whether the laboratory properties of HFTO differ significantly from those of conventional *** study aims to evaluate the laboratory properties of HFTO mixtures and compare them with those of AC and *** mixtures with nominal maximum size of 9.5 mm were produced in the laboratory,and performance tests were conducted,including wheel tracking test,low temperature flexural creep test,moisture susceptibility test,Cantabro Abrasion Test,Marshall Test,sand patch test,British pendulum test,and indoor tire-rollingdown *** results showed that the HFTO exhibited a lower tire/pavement noise than the AC and ***,HFTO had superior high-temperature stability,larger macro texture,and higher skid resistance in comparison to those of AC,but lower than those of ***,HFTO mixtures may be considered a suitable replacement for traditional AC mixtures in regions where skid resistance and noise reduction are concerns.

关键词： road engineering pavement maintenance high friction thin overlay performance skid resistance tire/pavement noise