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Submerged fermentation improves bioactivity of mulberry fruits and leaves

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chinese herbal Medicines 2021年第4期13卷 565-572页

作者： hui Qian chuah Pei Ling Tang Ni Jing ang hui Yin Tan Department of Bioscience Faculty of Applied SciencesTunku Abdul Rahman University CollegeSetapak 53300Kuala LumpurMalaysia

Objective:Mulberry(Morus spp.)fruits and leaves have been proven to possess nutraceutical *** to its fast and easy growing characteristics,mulberry fruits(MF)and leaves(ML)potentially emerge as a great source of functional *** study aims to enhance bioactivities(antioxidant,antiinflammation,and hypoglycemic activity)of MF and ML via submerged fermentation using bacteria(Lactobacillus plantarum TAR 4),yeast(Baker’s yeast and red yeast)and fungi(Tempeh and Tapai starter).Methods:In this study,25%(mass to volume ratio)of MF and ML were fermented(48 h)with 1%(mass to volume ratio)of different microbial cultures,*** of different fermentations on MF and ML were determined based on the changes of total phenolics(TPC),flavonoids(TFC),anthocyanins,total sugar,DPPh activity,ferric reducing antioxidant power(FRAP),albumin denaturation inhibition activity(ADI),anti-lipoxygenase activity and a-amylase inhibition activity(AI).Results:Generally,ML had higher AI than ***,MF exhibited higher DPPh,FRAP and antilipoxygenase activity than *** all forms of fermentation,DPPh and AI activity of MF and ML were increased significantly(Phowever,the effects of fermentation on TPC,FRAP,ADI and antilipoxygenase activity of MF were in contrast with ***,FRAP and anti-lipoxygenase activity of ML were enhanced,but reduced in MF after *** the effects exerted by different microorganisms in MF and ML fermentation were different,the bioactivities of MF and ML were generally improved after *** by Tempeh starter enhanced TPC(by 2-fold),FRAP(by 2.3-fold),AI(at 10%increment)and anti-lipoxygenase activity(by 5-fold)of ML,whereas Tapai fermentation effectively enhanced the DPPh(at 17%increment)and ADI(by 2-fold)activity of ***:Findings of this study provide an insight into the future process design of MF and ML processing into novel functional foods.

关键词： anti-inflammation activity antioxidant activity fermentation hypoglycemic activity mulberry fruits mulberry leaves

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核电用316h不锈钢的蠕变性能评估

稀有金属材料与工程 2021年第2期50卷 531-536页

作者：李昂吴福高蔚张毅核工业理化工程研究院国防科技工业核材料技术创新中心粒子输运与富集技术重点实验室天津300180

通过对核电用316h不锈钢的蠕变数据分析,利用速率温度参数模型拟合得出材料蠕变本构方程。根据相关统计检验方法,确定了材料的蠕变可靠度函数。结合Z’参数的数据分布,分别得出316h不锈钢蠕变应力-RTP参数-可靠度曲线和温度-容许应力-... 详细信息

通过对核电用316h不锈钢的蠕变数据分析,利用速率温度参数模型拟合得出材料蠕变本构方程。根据相关统计检验方法,确定了材料的蠕变可靠度函数。结合Z’参数的数据分布,分别得出316h不锈钢蠕变应力-RTP参数-可靠度曲线和温度-容许应力-可靠度曲线。结合ASME的评价规范,确定了316h不锈钢在550~700℃下的容许应力。结果表明,基于RMB’模型的蠕变本构方程在拟合精度方面优于其他传统模型。实测数据均位于蠕变可靠性模型预测结果的99.7%置信区间内。该模型可以较好地评估316h不锈钢的稳态蠕变性能及容许应力。

关键词： 316h不锈钢蠕变性能速率温度参数模型 Z’参数容许应力

三维石墨烯-碳纳米管磁性气凝胶的制备及其染料吸附性能

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新型炭材料 2022年第2期37卷 424-434页

作者： Zu Rong ang Ing Kong Rachel Shin Yie Lee Cin Kong Akesh Babu Kakarla Ai Bao chai wei Kong Department of Mechanical Materials and Manufacturing EngineeringUniversity of Nottingham MalaysiaJalan Broga43500 SemenyihSelangorMalaysia School of Computing Engineering and Mathematical SciencesLa Trobe UniversityBendigoVictoria 3552Australia School of Pharmacy University of Nottingham MalaysiaJalan Broga43500 SemenyihSelangorMalaysia Faculty of Engineering Science and TechnologyInfrastructure University Kuala LumpurCorporate BlockUnipark SuriaJalan Ikram-Uniten43000 KajangSelangorMalaysia

将ZnCl_(2)、NiCl_(2)·6h_(2)O、FeCl_(2)·4h_(2)O和FeCl_(3)·6h_(2)O分别加入氧化石墨烯和碳纳米管的悬浮液中,在碱性条件下共沉淀和水中与聚乙烯醇交联后,冷冻干燥制备气凝胶。制备的气凝胶由磁性Ni_(0.5)Zn_(0.5)Fe_(2)O_(4)纳米... 详细信息

将ZnCl_(2)、NiCl_(2)·6h_(2)O、FeCl_(2)·4h_(2)O和FeCl_(3)·6h_(2)O分别加入氧化石墨烯和碳纳米管的悬浮液中,在碱性条件下共沉淀和水中与聚乙烯醇交联后,冷冻干燥制备气凝胶。制备的气凝胶由磁性Ni_(0.5)Zn_(0.5)Fe_(2)O_(4)纳米粒子、氧化石墨烯、碳纳米管和聚乙烯醇组成,不仅具有吸附染料分子的活性位点,而且可通过外加磁场从水中分离。在最佳质量比下,制备的气凝胶对亚甲基蓝具有高的吸附容量(q_(e)=71.03 mg g^(-1))和中等磁性强度(M_(S)=3.519 emu g^(-1))。在染料浓度为0.025 mg mL^(-1)的条件下,气凝胶对亚甲基蓝、甲基橙、结晶紫及其相等质量的混合物的去除效率分别为70.1%、4.2%、8.9%和11.1%。该气凝胶重复使用3次后,再生效率仍超过82%。此外,它对生物体无毒,有望用作处理工业废水的吸附剂。

关键词：磁性气凝胶染料去除石墨烯碳纳米管秀丽隐杆线虫

大型基础设施系统设计中的风险及概率(英文)

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重庆交通大学学报（自然科学版） 2011年第A2期30卷 1084-1089,1232页

作者： A.h-S.ang 加利福尼亚大学埃文校区美国加利福尼亚

在大型基础设施系统中,不可避免地会出现重大的不确定性,因而,无法确保已建系统的安全性和可靠性。有功能失效甚至破坏的可能,同时也有相应的规避风险的措施。从实用角度出发,不确定性可以分为两大类:数据型(又称偶然型)不确定性和知识... 详细信息

在大型基础设施系统中,不可避免地会出现重大的不确定性,因而,无法确保已建系统的安全性和可靠性。有功能失效甚至破坏的可能,同时也有相应的规避风险的措施。从实用角度出发,不确定性可以分为两大类:数据型(又称偶然型)不确定性和知识型(又称认知型)不确定性。前者可以通过对数据的观察来评估,而后者则需要主观判断。系统地分析了这两类不确定性,得到有关风险预测的信息,为大型基础设施设计提供基于安全(即规避风险)的建议;对在地震荷载下大型基础设施进行了安全设计;以韩国某斜拉桥为例,对其进行了数值化评估及最低生命周期成本设计。

关键词：风险概率不确定性安全性可靠性基础设施桥梁设计

Improvement of thermal stability of ZrSiON based solar selective absorbing coating

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Journal of Materiomics 2020年第4期6卷 760-767页

作者： Yuping Ning Cong Wang Wenwen Wang Eric Tomasella Ying Sun Ping Song weichang hao angelique Bousquet School of Microelectronics Beihang UniversityBeijing 100191China School of Physics Beihang UniversityBeijing 100191China Universite Clermont Auvergne CNRSSIGMA ClermontInstitut de Chimie de Clermont-Ferrand(ICCF)F-63000 Clermont-FerrandFrance

Solar selective absorbing coatings(SSACs)are required to have not only excellent optical property but also outstanding thermal stability for high temperature *** optical properties of Mo/ZrSiN/ZrSiON/SiO_(2) SSAC had been optimized successfully ***,we are focusing on the evaluation and mechanism of thermal stability of this multilayer coating for its potential applications in concentrated solar power(CSP)***,the coating exhibits excellent thermal stability after aging at 400℃ for 1500 h in *** aging temperature of 500℃ for 1000 h or 600℃ for 300 h in vacuum,the slight inter-diffusion between Mo layer and stainless steel(SS)substrate *** higher aging temperature of 700℃ for 100 h in vacuum,the serious inter-diffusion between Mo layer and SS substrate leads to invalidation of the coating,which has been evidenced by Rutherford backscattering spectrometry(RBS)and X-ray diffraction(XRD)***,this coating also has an outstanding thermal stability after aging at 400℃for 300 h in air.A heating-cooling cycling(hCC)treatment evidences the good thermal stability of this coating working in cold environment(60℃).The results reveal that this coating can be a promising candidate not only for CSP system in high temperatures but also for usage in cold environment.

关键词： ZrSiON based solar absorbing coating Improved thermal stability Stability in cold environment

过渡金属活化过硫酸盐去除水中抗生素研究进展

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生态毒理学报 2024年第4期19卷 156-165页

作者：赵齐灵余圣品李佳乐孙占学董一慧江悦玲汪翰林赵希臻东华理工大学水资源与环境工程学院南昌330013 地下水污染成因与修复江西省重点实验室南昌330013 江西省勘察设计研究院有限公司南昌330095 南昌市水文地质与优质地下水资源开发利用重点实验室南昌330095

基于活化过硫酸盐的高级氧化技术能够产生强有效的硫酸根自由基(·SO_(4)^(-))和羟基自由基(·Oh)使水中的抗生素矿化降解。过渡金属活化过硫酸盐因具有环保、高效的优点而表现出良好的活化效果。单一的金属离子,如Ag+、Fe^(2+)、Co^(2+... 详细信息

基于活化过硫酸盐的高级氧化技术能够产生强有效的硫酸根自由基(·SO_(4)^(-))和羟基自由基(·Oh)使水中的抗生素矿化降解。过渡金属活化过硫酸盐因具有环保、高效的优点而表现出良好的活化效果。单一的金属离子,如Ag+、Fe^(2+)、Co^(2+)、Zn^(2+)、Mn^(2+)、Ni^(2+)参与循环活化较为困难,因此本文重点讨论了目前多金属氧化物、碳基负载过渡金属、光协同过渡金属活化过硫酸盐去除水中抗生素的研究进展,以期对水中有机污染物的去除提供思路。多金属氧化物在活化过程中其他金属离子可作为电子供体实现变价循环;碳基负载过渡金属通过自由基和非自由基反应降解抗生素,在活化过程中能够减缓金属表面发生电化学氧化和物理团聚,促进电子转移;光协同过渡金属活化促进光生空穴与光生电子的分离,提高活化效果。

关键词：过渡金属过硫酸盐多金属氧化物碳基负载过渡金属光协同过渡金属

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Dietary supplementation with free methionine or methionine dipeptide mitigates intestinal oxidative stress induced by Eimeria spp. challenge in broiler chickens

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Journal of Animal Science and Biotechnology 2019年第4期10卷 1005-1021页

作者： angélica de Souza Khatlab Ana Paula Del Vesco Adhemar Rodrigues de Oliveira Neto Roberta Pereira Miranda Fernandes Eliane Gasparino Animal Science Department State University of MaringáColombo Avenue5790Jardim UniversitárioMaringáParaná87020-900Brazil Animal Science Department Federal University of SergipeMarechal Rondon AvenueS/NJardim Rosa ElzeSao CristóvaoSergipe 49100-000Brazil EVONIK of Brazil Arquiteto Olavo Redig de Campos Street105Tower ASo PauloSP 04711-904Brazil Physiology Departament Federal University of SergipeMarechal Rondon AvenueS/NJardim Rosa ElzeSao CristóvaoSergipe 49100-000Brazil

Background: This study evaluated the effects of Eimeria spp. challenge and dietary supplementation with free methionine or methionine dipeptide on animal performance;expression of genes associated with the immune system, antioxidant system, and amino acid transport in the jejunum;and redox status of the jejunum of broiler ***: A randomized, 2 × 3 factorial design was used, in which Eimeria spp. challenge was the first factor(Eimeria-challenged, EC, or unchallenged, UC, broilers) and methionine supplementation was the second factor(non-supplemented, NS;free DL-methionine, DL-Met;and methionine dipeptide, DL-methionyl-DL-methionine, DLMMet). At 14 days of age, chickens were inoculated orally with sporulated oocysts of Eimeria acervulina, Eimeria praecox, Eimeria maxima, and Eimeria mitis. Birds were killed by cervical dislocation 144 h post-inoculation(PI), and the jejunum was collected for biochemical and molecular ***: EC broilers had a 13% lower feed intake(FI), 37% lower body weight gain(BWG), and 39% higher feed conversion ratio(FCR) than UC broilers. chickens fed the DL-Met diet had higher BWG(about 12% higher) and better FCR(about 12% lower) than chickens fed the NS diet. EC chickens had lower relative weight of the bursa of Fabricius(51.8%) and higher relative weights of the spleen and whole intestine(53.6% and 26.3%, respectively) than UC chickens. Eimeria spp. challenge led to an increase in the levels of oxidative substances, such as nitrite and thiobarbituric acid reactive substances(TBARS), in the jejunum of chickens 144 h PI. Among UC chickens, those fed the DL-Met diet had higher total antioxidant capacity(TAC) and lower catalase(CAT) and superoxide dismutase(SOD) activities. EC chickens that received the NS diet had higher carbonylated protein content(CP). This result was associated with their lower TAC and catalase activity. The lower TAC in EC chickens might have been due to reduced expression of catalase(CAT) and superoxide

关键词： Antioxidant Coccidiosis Gut INFG PEPT1

RADIUM TREATMENT IN ThE SO-CALLED INFECTIOUS SARCOMA OF DOGS

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中华医学杂志(英文版) 1932年第4期46卷 377-382+452页

作者： AMOSI.h.WONG h.J.K'ang M.D.Department of Obstetrics and Gynecology Department of Pathology Peiping Union Medical CollegePeiping.

The so-called infectious sarcoma of dogs is a malignant cellulargrowth occurring in the genital organs of *** term infectioushas been applied to it because the tumor is normally transmitted fromdog to dog by *** can also be transmitted experimentally *** tumour is papillomatous,soft and medullary in type with agranular or ragged ulcerating surface which bleeds very *** is often not profuse,but it is usually stained with blood andhas a foul *** the growth is advanced,the discharge is notinfrequently *** growth starts on the surface of the mucousmembrane,and then steadily increases in size by processes of infiltra-tion and proliferation.

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Corrosion resistance of tannic acid,d-limonene and nano-ZrO_(2)modified epoxy coatings in acid corrosion environments

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Journal of Materials Science & Technology 2021年第6期65卷 137-150页

作者： Junwei chang Zhenyu W ang En-hou han Xinlei Liang Gang Wang Zuyao Yi Na Li School of Materials Science and Engineering University of Science and Technology of ChinaHefei230026China Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang110016China huadian Zhengzhou Mechanical Design Institute Co. Ltd.Zhengzhou450000China

The protection of rusted carbon steel in acid corrosion environments is of great significance for equipment to keep safe *** this work,we presented a method to protect the rusted steel by ru st conversion treatment and epoxy *** acid was selected as rust conversion *** acid,D-limonene and nano-ZrO_(2)were used to improve the corrosion resistance of epoxy *** Raman spectra,Xray diffraction and 3 D confocal images were used to characterize the rust conversion *** hesion test showed that the loss of wet adhesion of the optimal coating was relatively low due to the addition of tannic acid,limonene and nano-ZrO(2).The corrosion resistance of five different coatings was investigated by scanning electron microscopy(SEM)and electrochemical *** show that after 264 h acid immersion,the low frequency resistance of the optimal coating consisting of rust conversion treatment and additives is 10^(7)Ωcm^(2),three orders magnitude higher than that of the pristine ***,SEM indicates that the optimal coating possesses a smooth surface and an unbroken interface between substrate and ***,the corrosion-resistant mechanism of the hybrid coating is proposed.

关键词： Epoxy coatings Corrosion resistance Rust treatment Tannic acid Synergistic inhibition effect