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Passivation characteristics of ultra-thin 316L foil in NaCl solutions

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Journal of Materials Science & Technology 2022年第32期127卷 192-205页

作者： Xiaoqi Yue Zhile Yang luyao huang Lei Zhang Jun Li Zhaozhan Xue Jinshan Pan Institute of Advanced Materials and Technology University of Science and Technology BeijingBeijing100083China Division of Surface and Corrosion Science KTH Royal Institute of TechnologyStockholm SE-10044Sweden Shunde Graduate School University of Science and Technology BeijingFoshan 528399China State Key Laboratory of Advanced Power Transmission Technology Global Energy Interconnection Research Institute Co.Ltd.Beijing 102209China Shanxi Taigang Stainless Steel Co. Ltd.Taiyuan 030003China

Electrochemical behaviour and passive film characteristics of an ultra-thin 316 L foil with a thickness of20μm in 3.5 wt.%NaCl solution were investigated using multiple techniques,focusing on the effect of microstructure,the applied potential,and the pH of the *** microstructure contains mainly fine grains(~4μm)with high-angle boundaries and preferential orientation of(220),and no MnS inclusion was *** electrochemical measurements show a significantly higher breakdown potential and lower passive current density for the 316 L foil than traditional wrought 316 *** surface analyses using angle-resolved X-ray photoelectron spectroscopy(ARXPS)and time-of-flight secondary ion mass spectroscopy(TOF-SIMS)reveal that,compared to the wrought material,both the inner and out parts of the passive film on the 316 L foil are more enriched in Cr-and *** microstructure favourable for elemental diffusion and the absence of MnS inclusion facilitate the formation of a continuous compact Cr-and Mo-rich passive film,which effectively retards corrosion in NaCl solution and remains stable in acidic solution(pH 2)or at high polarised potential up to 600 mV vs Ag/AgCl.

关键词： Ultra-thin 316L foil Passive film Pitting corrosion XPS TOF-SIMS

Bile acids and metabolic surgery

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Liver Research 2021年第3期5卷 164-170页

作者： Hui Xue luyao huang Jui Tu Lili Ding Wendong huang Shanghai Key Laboratory of Complex Prescriptions and MOE Key Laboratory for Standardization of Chinese Medicines Institute of Chinese Materia MedicaShanghai University of Traditional Chinese MedicineShanghaiChina Department of Diabetes Complications and Metabolism Institute of Diabetes and Metabolism Research CenterBeckman Research InstituteCity of Hope National Medical CenterDuarteCAUSA

The epidemic of obesity and its co-mortalities has reached an alarming level ***,metabolic surgeries,especially the Roux-en-Y gastric bypass and vertical sleeve gastrectomy,are the most effective and sustainable treatments for obesity,type 2 diabetes,non-alcoholic steatohepatitis,as well as other metabolic ***,the invasive nature of the surgeries limits their broad ap-plications to the general ***,developing alternative non-invasive approaches to mimic metabolic surgery is an important direction of the *** studies have identified several potential metabolic surgery-induced downstream endocrine mediators,among which bile acids are key candidate signaling *** acids are profoundly altered by metabolic surgery,which contributes to the metabolic effects of the *** this review,we focus on the most recent studies on the roles of bile acids and bile acid receptors farnesoid X receptor and Takeda G protein-coupled receptor 5 in mediating the metabolic effects of metabolic *** conclude that targeting bile acid pathways may be a promising pharmacological approach to mimic the beneficial effects of metabolic surgery.

关键词： Metabolic surgery Obesity Type 2 diabetes(T2D) Non-alcoholic fatty liver disease(NAFLD) Bile acid Farnesoid X receptor(FXR) Takeda G protein-coupled receptor 5(TGR5)

Microbiologically influenced corrosion of 304 stainless steel by halophilic archaea Natronorubrum tibetense

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Journal of Materials Science & Technology 2020年第11期42卷 12-20页

作者： Hongchang Qian Lingwei Ma Dawei Zhang Ziyu Li luyao huang Yuntian Lou Cuiwei Du Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing100083China

The corrosion behavior of 304 stainless steel(SS)in the presence of aerobic halophilic archaea Natronorubrum tibetense was *** 14 days of immersion,no obvious pitting pit was observed on the SS surface in the sterile *** contrast,the SS exhibited serious pitting corrosion with the largest pit depth of 5.0μm in the inoculated medium after 14 *** results of electrochemical tests showed that the barrier property of the passive film decreased faster in the inoculated *** X-ray photoelectron spectroscopy results indicated that the detrimental Fe2+and Cr6+increased in the passive film under the influence of archaea ***,which resulted in the accelerated deterioration of passive film and promoted the pitting *** with the energy starvation tests,the microbiologically influenced corrosion mechanism of 304 SS caused by halophilic archaea *** was discussed finally.

关键词： Stainless Steel Archaea Microbiological influenced corrosion

Effect of gut microbiota and metabolites in normal rats treated with large yellow croaker(Larimichthys crocea)roe phospholipids

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Food Bioscience 2022年第6期50卷 1487-1498页

作者： luyao huang Xiaodan Lu Huadan Zhang Baodong Zheng Yi Zhang Peng Liang College of Food Science Fujian Agriculture and Forestry UniversityFuzhou350002FujianPR China Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition Ministry of EducationFuzhouFujian350002PR China

Phospholipids derived from marine source has been widely demonstrated with hypolipidemic effect by establishing sub-healthy animal ***,the health benefits of large yellow croaker roe phospholipids(LYCRPLs)on normal diet(ND)rats remains poorly *** aim of this study was to investigate the possible effect exhibited by ND rats'gut microbiota and metabolism response to *** group rats were fed diets supplemented with ND and LYCRPLs for 8 weeks,*** rats’food intake,body weight,liver and epididymal adipose tissue and organ weight were initially analyzed,then explored the effect of LYCRPLs in gut microbiota and *** results revealed that LYCRPLs can positively regulated the gut microbiota by increasing the relative abundance of Firmicutes,Lactobacillus,and Lachnospiraceae_NK4A136 group etc.,and decreased harmful bacteria(Proteobacteria).Moreover,the intervention of LYCRPLs also significantly down-regulated the Citrate cycle(TCA cycle),Fat digestion and absorption,Carbohydrate digestion and absorption,Protein digestion and absorption pathways of normal rats,which indicates that LYCRPLs possess potential ability to regulate glycolipid *** findings reveal that LYCRPLs can be used as a gut microbiota manipulator to regulate the glycolipid metabolism for health promotion,which offers new prospects for LYCRPLs as a functional ingredient for the food industry.

关键词： Large yellow croaker roe Phospholipids Gut microbiota Metabolomics

从放逐到回归:研究性教学“知识回归”立场之辨析

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江苏高教 2022年第2期 93-100页

作者：黄路遥莱顿大学教学研究院荷兰莱顿2333BN

知识问题是课程与教学改革的关键问题。现有关于研究性教学的研究,受到"重能力、轻知识"思潮的影响,忽视了中国高等教育改革背景和知识与思维能力发展之间的关系,导致研究没有从根本上理解研究性教学的主张,难以为中国教学改革提供具体... 详细信息

知识问题是课程与教学改革的关键问题。现有关于研究性教学的研究,受到"重能力、轻知识"思潮的影响,忽视了中国高等教育改革背景和知识与思维能力发展之间的关系,导致研究没有从根本上理解研究性教学的主张,难以为中国教学改革提供具体的实践指导。重新确立"知识回归"立场,加强对研究性教学本质的解读,重建教学的基本共识,有助于对当下研究性教学在实施过程中出现的误区进行纠偏。

关键词：研究性教学教学改革知识回归

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Bioactivity Determination and Control Effect Evaluation of Three Plant Secondary Metabolites against Semiaphis heraclei

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Plant Diseases and Pests 2021年第4期12卷 1-4,8页

作者： Panpan Sun luyao huang Min Li Longtai Ju Yumeng Wu Jia Li College of Pharmaceutical Science Shandong University of Traditional Chinese MedicineJinan 250355China

[Objective] The paper was to clarify the bioactivity of trans-2-hexenal,oregano oil and thyme oil against Semiaphis heraclei and the synergistic effect of orange peel essential oil and organosilicon on the aphidicidal activity of the three agents.[Method] With ***,the dominant species of aphids in Lonicera japonica thunb.,as the test insect,the bioactivity and control effect were evaluated by the method of leaf dipping and foliar spraying.[Result] The indoor toxicity of thyme oil was the highest,with the LC_(50) of 1.793 mg/*** additives significantly increased the toxicity of the agents to *** them,trans-2-hexenal+OSi,oregano oil+OSi and thyme oil+OSi had obvious synergistic effects,with the toxicity coefficients of 1.80,1.48 and 1.45,*** test showed that the corrected control effect of thyme oil was the highest after con-ventional spraying,and the toxicities of the three agents were higher than that of the control group at 7 d post *** the condition of 20%reduction of three agents and adding organosilicon,the control effect was increased by about 10% at 1 d post spraying,which was higher than that of the control group at 4 d post spraying,and reached over 98% at 14 d post spraying.[Conclusion] Thyme oil has the highest toxicity and control effect on *** agents combined with organosilicon have the obvious effect of reducing the quantity and increasing the efficiency,which has the potential for further development.

关键词： Lonicera japonica Semiaphis heraclei Plant secondary metabolites Additive

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数字化课程40年发展评析

课程．教材．教法 2018年第10期38卷 51-58页

作者：周序黄路遥厦门大学高等教育发展研究中心厦门361005 厦门大学教育研究院厦门361005

40年来,数字化课程从一种课程资源"升级"成为了课程本身。在迅速发展的背后,支撑数字化课程发展的各种教育信息化技术愈发清晰;但数字化课程究竟蕴含或体现了哪些教育理念,却显得越来越模糊。在微课、慕课出现之前,人们对数字化课程持... 详细信息

40年来,数字化课程从一种课程资源"升级"成为了课程本身。在迅速发展的背后,支撑数字化课程发展的各种教育信息化技术愈发清晰;但数字化课程究竟蕴含或体现了哪些教育理念,却显得越来越模糊。在微课、慕课出现之前,人们对数字化课程持一种谨慎好评的态度;而在此之后,人们对数字化课程的看法在好、坏两个方向上都更加极端,评价显得模糊。上述问题皆源于我们关注技术胜过关注"人",导致宏观研究未能结合实践,微观研究也未形成体系。未来关于数字化课程的研究,应在加大对"人"的关注的前提下,从宏观走向微观,从零散走向系统。

关键词：数字化课程课程资源技术理念评价

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基于GAN的低照度图像增强算法研究

福州大学学报（自然科学版） 2020年第5期48卷 551-557页

作者：黄路遥叶少珍福州大学数学与计算机科学学院福建福州350108 福州大学智能制造仿真研究院福建福州350108

针对低照度图像增强问题,提出一种基于生成式对抗网络(generative adversarial networks,GAN)的循环式图像增强网络.引入无监督学习方式,通过降低循环一致性损失和对抗性损失,估计低照度图像的原始光照图;利用建立的图像增强模型公式,... 详细信息

针对低照度图像增强问题,提出一种基于生成式对抗网络(generative adversarial networks,GAN)的循环式图像增强网络.引入无监督学习方式,通过降低循环一致性损失和对抗性损失,估计低照度图像的原始光照图;利用建立的图像增强模型公式,对光照不足环境下采集到的图像进行亮度等方面的增强.在人工合成低照度图像数据集和真实自然低照度图像数据集上,均进行了质化和量化评价.实验表明,与现有的一些图像增强方法相比,该方法具有更好的图像增强效果,能够由低照度图像复原出生动、清晰、直观、自然的高质量图像.

关键词：图像增强图像复原生成式对抗网络卷积神经网络

响应面法优化乙醇提取大黄鱼鱼卵油工艺的研究

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中国油脂 2019年第10期44卷 9-12页

作者：黄璐瑶张敏黄莹梁鹏福建农林大学食品科学学院

为了提高大黄鱼副产物鱼卵的综合利用率,对乙醇提取大黄鱼鱼卵油工艺进行优化,并对制备所得大黄鱼鱼卵油进行脂肪酸组成分析。通过单因素试验研究料液比、提取温度和提取时间对鱼卵油得率的影响,根据Box-Behnken中心组合试验设计原理,... 详细信息

为了提高大黄鱼副产物鱼卵的综合利用率,对乙醇提取大黄鱼鱼卵油工艺进行优化,并对制备所得大黄鱼鱼卵油进行脂肪酸组成分析。通过单因素试验研究料液比、提取温度和提取时间对鱼卵油得率的影响,根据Box-Behnken中心组合试验设计原理,采用响应面法优化工艺条件。结果表明,乙醇提取大黄鱼鱼卵油的最优工艺条件为:料液比1∶14,提取温度55℃,提取时间5.8 h。在最优条件下,大黄鱼鱼卵油的平均得率为(30.23±0.03)%。大黄鱼鱼卵油富含多不饱和脂肪酸,其中DHA和EPA总含量高达(21.9±0.83)%。

关键词：大黄鱼鱼卵油提取脂肪酸