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Dietary fibers with low hydration properties exacerbate diarrhea and impair intestinal health and nutrient digestibility in weaned piglets

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Journal of Animal Science and Biotechnology 2023年第2期14卷 771-791页

作者： Shuangbo Huang Zhijuan Cui Xiangyu Hao chuanhui cheng Jianzhao Chen Deyuan Wu Hefeng Luo Jinping Deng chengquan Tan Guangdong Provincial Key Laboratory of Animal Nutrition Control National Engineering Research Center for Breeding Swine IndustryInstitute of Subtropical Animal Nutrition and FeedCollege of Animal ScienceSouth China Agricultural UniversityGuangzhou 510642GuangdongChina Dekon Food and Agriculture Group Chengdu 610031China Guangdong Laboratory for Lingnan Modern Agriculture South China Agricultural UniversityGuangzhou 510642GuangdongChina.

Background:This study aimed to investigate the hydration properties of different-source fibrous materials by com-paring their water-binding capacity(WBC),water swelling capacity(WSC),viscosity,and in vivo effects of selected samples on growth performance,nutrient digestibility,diarrhea,and intestinal health in weaned piglets.Methods:A total of 13 commercially available fibrous materials were first compared in chemical composition and in vitro hydration property.Subsequently,40 weaned piglets were randomized to five experimental dietary groups(8 piglets per group):control diet(a basal diet without dietary fiber,CON),basal diet supplemented with 5%microcrys-talline cellulose(MCC),5%wheat bran(WB),5%Moringa oleifera leaf powder(MOLP),or 5%sugar beet pulp(SBP),fol-lowed by analyzing their growth performance and diarrhea rate in a 28-d experiment.After the feeding experiment,anaesthetized piglets were killed,and their intestinal and colon content or plasma samples were analyzed in nutrient digestibility,intestinal morphology,intestinal barrier,short-chain fatty acids(SCFAs),and bacterial population.Results:In vitro studies showed low hydration properties for WB and MCC,while medium hydration properties for MOLP and SBP.In vivo studies indicated that compared with medium hydration property groups,low hydration prop-erty groups showed(1)exacerbated diarrhea,impaired intestinal health,and reduced apparent fecal digestibility of dry matter,gross energy,acid detergent fiber,and neutral detergent fiber;(2)decreased SCFAs concentration and rela-tive levels of Lactobacillus and Bifidobacterium,but increased levels of Escherichia coli and Brachyspira hyodysenteriae in colon contents.Additionally,SBP showed optimal performance in reducing diarrhea and increasing SCFAs produc-tion.Correlation analysis revealed a positive correlation of fiber hydration properties with in vitro SCFAs production,and diarrhea index and nutrient digestibility were negatively and positively correlated with SCFAs levels in the colon contents of weaned

关键词： Diarrhea Dietary fiber Hydration property Intestinal health Nutrient digestibility Weaned piglet

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Enhanced efficiency of the Sb_(2)Se_(3)thin-film solar cell by the anode passivation using an organic small molecular of TCTA

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Journal of Semiconductors 2023年第8期44卷 62-67页

作者： Yujie Hu Zhixiang Chen Yi Xiang chuanhui cheng Weifeng Liu Weishen Zhan School of Physics Dalian University of TechnologyDalian 116024China Mechanical and Electrical Engineering College Hainan UniversityHaikou 570228China

Antimony selenide(Sb_(2)Se_(3))is an emerging solar cell material.Here,we demonstrate that an organic small molecule of 4,4',4''-tris(carbazol-9-yl)-triphenylamine(TCTA)can efficiently passivate the anode interface of the Sb_(2)Se_(3)solar cell.We fabricated the device by the vacuum thermal evaporation,and took ITO/TCTA(3.0 nm)/Sb_(2)Se_(3)(50 nm)/C60(5.0 nm)/Alq3(3.0 nm)/Al as the device architecture,where Alq3 is the tris(8-hydroxyquinolinato)aluminum.By introducing a TCTA layer,the open-circuit voltage is raised from 0.36 to 0.42 V,and the power conversion efficiency is significantly improved from 3.2%to 4.3%.The TCTA layer not only inhibits the chemical reaction between the ITO and Sb_(2)Se_(3)during the annealing process but it also blocks the electron diffusion from Sb_(2)Se_(3)to ITO anode.The enhanced performance is mainly attributed to the suppression of the charge recombination at the anode interface.

关键词： Sb_(2)Se_(3) thin-film solar cell passivation

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Inclusion of wheat aleurone in gestation diets improves postprandial satiety,stress status and stillbirth rate of sows

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Animal Nutrition 2021年第2期7卷 412-420页

作者： Jinping Deng chuanhui cheng Haoyuan Yu Shuangbo Huang Xiangyu Hao Jianzhao Chen Jiansen Yao Jianjun zuo chengquan Tan Guangdong Provincial Key Laboratory of Animal Nutrition Control National Engineering Research Center for Breeding Swine IndustryInstitute of Subtropical Animal Nutrition and FeedCollege of Animal ScienceSouth China Agricultural UniversityGuangzhou510642China Guangdong Laboratory for Lingnan Modern Agriculture South China Agricultural UniversityGuangzhou510642China Jiaxing Zhishifang Food Science and Technology Co. Ltd.JiaxingChina

This study investigated the effects of different amounts of wheat aleurone(WA)(0,15%,30%)inclusion in gestation diets on the reproductive performance,postprandial satiety,stress status and stereotypic be-haviors of sows.A total of 84 Landrace×Yorkshire sows(parity 4.87±1.32)at breeding were randomly allotted to one of the three isoenergetic and isonitrogenous dietary treatments based on parity and body weight.The results showed that,compared with the control(0),sows fed the WA diet had a higher serum concentration of peptide YY(PYY)(P<0.05)and glucagon like peptide-1(GLP-1)(P<0.05)and a lower concentration of saliva cortisol(P<0.01).Importantly,compared with the control group,only the 15%WA group had a higher concentration of the total antioxidant capacity(T-AOC)(P<0.05),lower pro-portions of sitting(P=0.05)and stillbirth rates(P<0.01).Accordingly,the production cost per piglet born alive($6.9 vs.$7.6)or per piglet born healthy($7.4 vs.$7.9)declined in the 15%WA group versus the control group.Overall,15%WA inclusion in gestation diets contributed to enhancing postprandial satiety,alleviating stress status and decreasing stillbirth rate of sows.This study provides a reference for the application of WA as a partial substitute for conventional feed ingredients to improve sows'repro-ductive performance.

关键词： Wheat aleurone Stillbirth rate Stress Postprandial satiety Sow

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Photoluminescence Characterization of NASICON Material

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稀有金属材料与工程 2006年第A3期35卷 535-537页

作者： Yuehua He Baofu Quan Ying Wang chuanhui cheng Fengmin Liu Biao Wang College of Electronic Science and Engineering Jilin University Changehun 130012 China School of Materials Science and Engineering Dalian Jiaotong University Dalian 116028 China

Besides gas sensitivity,NASICON (Na super ion conductor) material has luminescence characterization.In this paper,the photoluminescence properties of NASICON and doped-NASICON material are investigated.The NASICON material was synthesized by conventional sol-gel process,and doped with Er_2O_3,Tm_2O_3,Dy_2O_3,CsCl by 1%,3%,5% (mass ratio),respectively.The ultraviolet light (325 nm,He-Cd laser) excited luminescent emissions of the resulted powders are recorded vs.wavelength in the 330 nm to 650 nm range.The main peak of the pure NASICON is found at the wavelength of 474 nm (blue light),the transition energy is 2.616 eV.The luminescent intensity is weakened obviously after doping with Er_2O_3 and Tm_2O_3,but is increased after doping with Dy_2O_3 and 3% CsCl.

关键词： photoluminescence NASICON luminescent intensity wavelength

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OceanBase分布式关系数据库架构与技术

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计算机研究与发展 2024年第3期61卷 540-554页

作者：阳振坤杨传辉韩富晟王国平杨志丰成肖君北京奥星贝斯科技有限公司

关系数据库是当今社会的关键信息基础设施，互联网和数字化带来了高并发和海量数据，传统关系数据库均为集中式架构，处理能力和存储容量都捉襟见肘. OceanBase分布式关系数据库基于通用PC服务器，不仅实现了在线水平伸缩，还实现了机... 详细信息

关系数据库是当今社会的关键信息基础设施，互联网和数字化带来了高并发和海量数据，传统关系数据库均为集中式架构，处理能力和存储容量都捉襟见肘. OceanBase分布式关系数据库基于通用PC服务器，不仅实现了在线水平伸缩，还实现了机房故障自动无损容灾以及高倍率数据压缩等，已经应用于金融、政务、通信和互联网等行业.介绍了OceanBase分布式关系数据库的系统架构和关键技术，包括分布式事务处理、基于LSM-tree的存储系统以及分布式SQL优化器.详细阐述了OceanBase数据库的高可用和数据一致性，包括RPO为0和RTO小于8 s.也介绍了OceanBase数据库多租户机制，即采用了集群内原生多租户设计，在集群内实现多个互相独立的数据库服务.基于Sysbench和TPC-H评测基准，对比实验结果表明：1）在单机模式下，OceanBase的性能是MySQL的1.27倍至2倍多；2）在单主模式下，OceanBase的性能是MySQL的1.25倍至近2倍；3）在多主模式下，OceanBase的性能是MySQL的1.09倍至3.1倍，对于OLAP的复杂查询，OceanBase的性能是MySQL的6倍到327倍.

关键词：关系数据库分布式事务基于LSM-tree存储分布式SQL优化器多租户

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层状Cf/ZrB2-SiC复合材料断裂行为仿真研究

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河北工业大学学报 2024年第3期53卷 19-28,40页

作者：张传晖程业红刘亚雄河北工业大学机械工程学院天津300401 潍柴动力股份有限公司山东潍坊261001 河北省跨尺度智能装备技术重点实验室天津300401 单兵作战先进智能防护装备技术教育部重点实验室天津300401 河北省廊坊市烟草专卖局大城县卷烟营销部河北廊坊065900

为研究层状Cf/ZrB2-SiC复合材料断裂行为的影响因素和规律以及裂纹扩展规律和形成机理,从细观尺度建立了单边切口梁法(SENB)有限元模型,使用软件ABAQUS进行了仿真模拟。仿真计算的断裂韧性为10.01 MPa·m^(1/2),结果与试验数据基本一致... 详细信息

为研究层状Cf/ZrB2-SiC复合材料断裂行为的影响因素和规律以及裂纹扩展规律和形成机理,从细观尺度建立了单边切口梁法(SENB)有限元模型,使用软件ABAQUS进行了仿真模拟。仿真计算的断裂韧性为10.01 MPa·m^(1/2),结果与试验数据基本一致,验证了有限元模型的有效性;裂纹扩展过程中多次沿界面偏折,裂纹呈阶梯状特征。在荷载-位移曲线上表现为曲线升降的变化,呈现出明显的阶梯断裂模式。断裂韧性随层厚比的增加,表现出先增大后减小的趋向,最佳层厚比约为1。断裂韧性随界面层厚度的增加呈现先上升再下降的趋势,最佳界面层厚度是200 nm。

关键词：层状复合材料数值模拟裂纹单边切口梁法(SENB) 断裂韧性黏聚力单元

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Scalable one-step wet-spinning of triboelectric fibers for large-area power and sensing textiles

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Nano Research 2023年第5期16卷 7518-7526页

作者： Chuan Ning chuanhui Wei Feifan Sheng Renwei cheng Yingying Li Guoqiang Zheng Kai Dong Zhong Lin Wang CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-Nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400China College of Materials Science and Engineering Key Laboratory of Material Processing and Mold(Ministry of Education)Henan Key Laboratory of Advanced Nylon Materials and ApplicationZhengzhou UniversityZhengzhou 450001China School of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049China School of Material Science and Engineering Georgia Institute of TechnologyAtlantaGeorgia 30332USA

Textile-based electronic devices have attracted increasing interest in recent years due to their wearability,breathability,comfort.Among them,textile-based triboelectric nanogenerators(T-TENGs)exhibit remarkable advantages in mechanical energy harvesting and self-powered sensing.However,there are still some key challenges to the development and application of triboelectric fibers(the basic unit of T-TENG).Scalable production and large-scale integration are still significant factors hindering its application.At the same time,there are some difficulties to overcome in the manufacturing process,such as achieving good stretchability and a quick production,overcoming incompatibility between conductive and triboelectric materials.In this study,triboelectric fibers are produced continuously by one-step coaxial wet spinning.They are only 0.18 mm in diameter and consist of liquid metal(LM)core and polyurethane(PU)sheath.Due to the good mechanical properties between them,there is no interface incompatibility of the triboelectric fibers.In addition,triboelectric fibers can be made into large areas of T-TENG by means of digital embroidery and plain weave.The T-TENGs can be used for energy harvesting and self-powered sensing.When they are fixed on the forearm can monitor various strokes in badminton.This work provides a promising strategy for the large-scale fabrication and large-area integration of triboelectric fibers,promotes the development of wearable T-TENGs.

关键词： triboelectric nanogenerators coaxial wet spinning scale production large-area integration self-powered sensing

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Continuous Preparation of Chitosan‑Based Self‑Powered Sensing Fibers Recycled from Wasted Materials for Smart Home Applications

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Advanced Fiber Materials 2022年第6期4卷 1584-1594页

作者： Yingying Li chuanhui Wei Yang Jiang Renwei cheng Yihan Zhang Chuan Ning Kai Dong Zhong Lin Wang CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro‑Nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400People’s Republic of China Center On Nanoenergy Research School of Physical Science and TechnologyGuangxi UniversityNanning 530004People’s Republic of China School of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049People’s Republic of China School of Material Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332‑0245USA

Currently,the gradual depletion of fossil resources and the large amount of plastic waste are causing serious harm to the land and marine ecology.The rapid development of wearable smart fibers is accompanied by rapid growth in the material demand for fibers,and the development of green and high-performance biomass-based fibers has become an important research topic to reduce the dependence on synthetic fiber materials and the harm to the environment.Here,chitosan is first prepared from the waste material by chemical methods.Then the chitosan-based self-powered induction fibers are prepared by electrospinning core wire technique.Chitosan-based self-powered sensing fiber is ultra-light and flexible,which can achieve about 2500 collisions without damaging the surface.Chitosan-based self-powered sensing fiber can also be used in smart home sensing applications to control home appliance switches with a light touch,which has a great application prospect in smart home and wearable fields.

关键词： Recycled wasted materials Chitosan nanofibers Electrospinning Self-powered sensing Smart home

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Climate change and Aedes albopictus risks in China:current impact and future projection

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Infectious Diseases of Poverty 2023年第2期12卷 123-124页

作者： Hongmei Liu Xiaodan Huang Xiuxia Guo Peng cheng Haifang Wang Lijuan Liu chuanhui Zang Chongxing Zhang Xuejun Wang Guofa Zhou Maoqing Gong Shandong Institute of Parasitic Diseases Shandong First Medical University and Shandong Academy of Medical Sciences Jining People’s Republic of China Program in Public Health University of California Irvine USA Shandong Center for Disease Control and Prevention Jinan China

Background Future distribution of dengue risk is usually predicted based on predicted climate changes using general circulation models(GCMs).However,it is difficult to validate the GCM results and assess the uncertainty of the predictions.The observed changes in climate may be very different from the GCM results.We aim to utilize trends in observed climate dynamics to predict future risks of Aedes albopictus in China.Methods We collected Ae.albopictus surveillance data and observed climate records from 80 meteorological stations from 1970 to 2021.We analyzed the trends in climate change in China and made predictions on future climate for the years 2050 and 2080 based on trend analyses.We analyzed the relationship between climatic variables and the prevalence of Ae.albopictus in different months/seasons.We built a classification tree model(based on the average of 999 runs of classification and regression tree analyses)to predict the monthly/seasonal Ae.albopictus distribution based on the average climate from 1970 to 2000 and assessed the contributions of different climatic variables to the Ae.albopictus distribution.Using these models,we projected the future distributions of Ae.albopictus for 2050 and 2080.Results The study included Ae.albopictus surveillance from 259 sites in China found that winter to early spring(November–February)temperatures were strongly correlated with Ae.albopictus prevalence(prediction accuracy ranges 93.0–98.8%)—the higher the temperature the higher the prevalence,while precipitation in summer(June–September)was important predictor for Ae.albopictus prevalence.The machine learning tree models predicted the current prevalence of Ae.albopictus with high levels of agreement(accuracy>90%and Kappa agreement>80%for all 12 months).Overall,winter temperature contributed the most to Ae.albopictus distribution,followed by summer precipitation.An increase in temperature was observed from 1970 to 2021 in most places in China,and annual change rates varied substantially from-0.22℃/year to 0.58℃/year

关键词： Aedes albopictus Observed climate change Projected future climate Observed risks distribution Projected future risk distribution

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不同植物精油对淡色库蚊生物活性的筛选及成分分析

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热带病与寄生虫学 2024年第2期22卷 97-101页

作者：类晶晶李亚平娄紫微臧传慧程鹏公茂庆刘丽娟山东省寄生虫病防治研究所山东第一医科大学(山东省医学科学院)山东济宁272033 山东省金乡县农业局

目的筛选对淡色库蚊幼虫和成蚊均有较高生物活性的植物精油,获得对淡色库蚊有生物活性的精油成分。方法采用药液浸养法测定19种植物精油对淡色库蚊幼虫的毒杀活性;选取幼虫毒杀活性实验中24 h死亡率超过50.00%的精油,采用密闭三角瓶熏... 详细信息

目的筛选对淡色库蚊幼虫和成蚊均有较高生物活性的植物精油,获得对淡色库蚊有生物活性的精油成分。方法采用药液浸养法测定19种植物精油对淡色库蚊幼虫的毒杀活性;选取幼虫毒杀活性实验中24 h死亡率超过50.00%的精油,采用密闭三角瓶熏蒸法测定其对雌性成蚊的熏蒸活性;选择对幼虫和成蚊均有较高活性的精油,通过气相色谱-质谱联用技术(chromatography-mass spectrometry,GC-MS)分析其成分。结果大葱与马樱丹精油对淡色库蚊Ⅲ龄幼虫活性较好,在80μg/mL浓度下,蚊幼虫24 h平均死亡率高达100.00%;香附、檀香、肉桂和雪松精油活性次之,蚊幼虫24 h死亡率分别为91.67%、91.67%、88.33%、83.33%。选择上述6种精油开展成蚊熏蒸实验,结果大葱、雪松和香附精油的熏蒸活性较好,击倒中时(median knockdown time,KT50)值分别为5.31、8.60和9.49 min。选择对幼虫和成蚊均有较高活性的大葱、香附和雪松精油进行GC-MS成分分析,结果显示,大葱、香附和雪松精油中分别鉴定出32、62和48种成分,涉及烃类、醇、醛、胺、酮、酸、酚、酯等多种化合物。结论大葱、雪松和香附精油对淡色库蚊幼虫和成蚊均有较强的生物活性,在媒介蚊虫的防治中有潜在的应用价值。

关键词：植物精油淡色库蚊毒杀活性熏蒸活性成分分析

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