Results 1 to 10 of about 4,832 (91)

Efficacy and tolerance of a novel topical TRPV‐1 channel antagonist in dogs with allergic pododermatitis

open access: yesVeterinary Dermatology, Volume 34, Issue 6, Page 514-522, December 2023., 2023
Background – Pruritus is one of the most common reasons for dermatological consultations in the veterinary clinic. Treatment is normally multimodal and requires continuous monitoring and reassessment. New therapies are needed to broaden the therapeutic arsenal.
Xavier Serra Fabregat   +5 more
wiley   +1 more source

臭氧微气泡/紫外光处理费托合成水的研究

open access: yesGongye shui chuli, 2023
利用臭氧微气泡/紫外光处理费托合成水,研究臭氧微气泡/紫外光对小分子氧化物脱除过程的影响。首先获得了微气泡的最优粒径分布,再分别对费托合成水及其主要单一组分的水溶液进行氧化处理,并对臭氧微气泡/紫外光体系的氧化效果进行表观动力学分析。结果表明,微气泡可增强气液传质,提高臭氧氧化处理效率,COD降解率随微气泡直径减小呈现先增大后减小的趋势,最佳气泡中位径为25.20 μm;在不同紫外光强、氧化体系、反应温度下,臭氧微气泡/紫外光体系氧化费托合成水的COD脱除率均符合准一级反应动力学规律,光强越强、温度越高,
贾梦磊, 李国强, 耿春宇, 高琳
doaj   +2 more sources

Research on Mechanism of Decarboxylation of Intermediates Involved in Preparation of Flavor Furanone(食用香料呋喃酮制备过程中中间体脱羧反应机理研究) [PDF]

open access: yesShipin kexue jishu xuebao, 2023
The decarboxylations of the intermediates involved in the industrial production of furanone starting from diethyl α-methyldiglycolate and diethyl oxalate were investigated. Furanone was obtained through two successive Claisen condensations, hydrolysis of
WANG Yutong(王禹茼)   +5 more
doaj   +1 more source

Synthesis of spiral compounds incoraporating 1, 4-benzene and oligo(ethylene glycols)(苯并寡聚乙二氧链螺旋体的合成)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2010
以对甲氧基苯酚、对苄氧基苯酚、对苯二酚和四乙二醇二磺酸酯这些简单化合物为原料,通过磺酸酯与酚的亲核取代反应及苄基保护、钯碳氢化去保护策略制备得到了4种新颖的苯并寡聚乙二氧链螺旋体化合物.
YEYu-yuan(叶余原)   +5 more
doaj   +1 more source

水溶性马来酸酐共聚物的合成及其阻垢效果的研究

open access: yesGongye shui chuli, 1984
以过氧化苯甲酰为引发剂,甲苯(汽油或石油醚)为溶剂,合成了水溶性马来酸酐-醋酸乙烯酯、马来酸酐-醋酸乙烯酯-丙烯酸甲酯、马来酸酐-醋酸乙烯酯-苯乙烯三种共聚物。通过室内和油田矿化水试验证明,制得的共聚物有良好的阻垢效果,低分子量的马来酸酐-醋酸乙烯酯-丙烯酸甲酯的阻垢效果最好。
郑邦乾, 朱清泉
doaj   +2 more sources

聚羧酸系无磷阻垢剂阻磷酸钙垢的对比研究

open access: yesGongye shui chuli, 2015
羧酸系阻垢剂具有对水环境无磷污染优势。通过实验对新型聚醚型羧酸系共聚物马来酸酐-烯丙氧基聚乙烯氧基羧酸钠(MA-APEC)、丙烯酸-烯丙氧基聚乙烯氧基羧酸钠(AA-APEC)及羧酸系聚合物水解聚马来酸酐、聚丙烯酸、丙烯酸/丙烯酸羟丙酯的阻磷酸钙垢能力进行了对比研究。实验结果显示, 5种阻垢剂均可使磷酸钙晶体形貌发生改变, 但拥有强亲水性聚乙烯氧基链段的聚合物MA-APEC和AA-APEC具有更优异的阻磷酸钙垢能力。
符嫦娥   +5 more
doaj   +2 more sources

Multifunctional Hydrogels Based on MXene@NiFe2O4 Conductive‐Magnetic Composites for Electromagnetic Shielding, Thermal Insulation, and Wearable Sensors

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Traditional electromagnetic shielding materials mainly focus on attenuating electromagnetic interference (EMI), but they still fail to meet the growing demands of modern flexible electronic devices and Internet‐related information technologies.
Zhi Lei   +6 more
wiley   +1 more source

Dual‐Bioactive Lignin‐Based Microcarrier Hydrogel Platform via Metal Salt Crosslinking for Synchronized Infection Eradication and Bone Regeneration

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Infected bone defects represent a dual therapeutic challenge demanding concurrent infection inhibition and osteogenesis promotion. Systemic antibiotic administration is taken as a classical treatment protocol but often yields inadequate local antibiotic concentrations and delayed bone repair.
Xucai Wang   +8 more
wiley   +1 more source

对硝基苯乙酮生产废水处理工程实例

open access: yesGongye shui chuli, 2017
介绍了处理对硝基苯乙酮生产废水的化学/生物/深度处理组合工艺及相关反应条件。其中化学法采用混合酸析和Fenton催化氧化法,通过小试发现,对硝基苯乙酮生产废水混合酸析最佳pH为2.0,Fenton催化氧化的最佳反应条件为pH 3.0、H2O2质量分数0.9%、FeSO4·7H2O 2.5 g/L、反应时间2 h。经过混合酸析-Fenton催化氧化-水解酸化-A/O-臭氧氧化-接触氧化工艺处理后,出水的COD、硝基苯、色度、总氮等指标达到国家污水综合排放三级标准(GB 8978-1996)。
危志锋   +5 more
doaj   +2 more sources

Enhancement of Corrosion and Wear Resistance in Polymeric Coatings via Ce(III)‐Functionalized Ternary ZnAlCe Layered Double Hydroxides Intercalated With EDTMP

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The intricate corrosion environment necessitates the polymeric coating's adaptability to the surroundings. In this work, the integration of rare‐earth Ce(III) ions and ethylene diamine tetramethylene phosphonic acid (EDTMP) in a layered double hydroxide (LDH) material is developed to enhance the corrosion protection and anti‐wear properties of
Yangu Liu   +9 more
wiley   +1 more source

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