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Replacing dietary sodium selenite with biogenic selenium nanoparticles improves the growth performance and gut health of early-weaned piglets

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Animal Nutrition 2023年第4期15卷 99-113页

作者： Lei qiao Xina dou Xiaofan Song Jiajing Chang Xiaonan Zeng Lixu Zhu Hongbo Yi Chunlan Xu School of Life Sciences Northwestern Polytechnical UniversityXi'anShaanxi 710072China State Key Laboratory of Livestock and Poultry Breeding Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South ChinaGuangdong Provincial Key Laboratory of Animal Breeding and NutritionInstitute of Animal Science of Guangdong Academy of Agricultural SciencesGuangzhouGuangdong 510640China

Selenium nanoparticles(SeNPs)are proposed as a safer and more effective selenium delivery system than sodium selenite(Na_(2)SeO_(3)).Here,we investigated the effects of replacing dietary Na_(2)SeO_(3)with SeNPs synthesized by Lactobacillus casei ATCC 393 on the growth performance and gut health of earlyweaned ***-two piglets(Duroc×Landrace×Large Yorkshire)weaned at 21 d of age were divided into the control group(basal diet containing 0.3 mg Se/kg from Na_(2)SeO_(3))and SeNPs group(basal diet containing 0.3 mg Se/kg from SeNPs)during a 14-d feeding *** results revealed that SeNPs supplementation increased the average daily gain(P=0.022)and average daily feed intake(P=0.033),reduced(P=0.056)the diarrhea incidence,and improved(P=0.013)the feed conversion ratio compared with Na_(2)SeO_(3).Additionally,SeNPs increased jejunal microvilli height(P=0.006)and alleviated the intestinal barrier dysfunction by upregulating(P<0.05)the expression levels of mucin 2 and tight junction proteins,increasing(P<0.05)Se availability,and maintaining mitochondrial structure and function,thereby improving antioxidant capacity and ***,metabolomics showed that SeNPs can regulate lipid metabolism and participate in the synthesis,secretion and action of parathyroid hormone,proximal tubule bicarbonate reclamation and tricarboxylic acid ***,SeNPs increased(P<0.05)the abundance of Holdemanella and the levels of acetate and *** analysis suggested that Holdemanella was closely associated with the regulatory effects of SeNPs on early-weaned piglets through participating in lipid ***,replacing dietary Na_(2)SeO_(3)with biogenic SeNPs could be a potential nutritional intervention strategy to prevent earlyweaning syndrome in piglets.

关键词： Selenium nanoparticle Early-weaned piglet Gut homeostasis Gut microbiota

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Entropy versus enthalpy in hexagonal-close-packed highentropy alloys

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Rare Metals 2022年第8期41卷 2906-2920页

作者： Xin-Wei Yang Xiao-hui Shi hui-Jun Yang Jun-Wei qiao Peter KLiaw Yu-Cheng Wu College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan030024China School of Materials Science and Engineering University of TennesseeKnoxville37996USA School of Materials Science and Engineering Hefei University of TechnologyHefei230000China

The addition of hexagonal-close-packed(hcp)non-rare-earth elements Zr,Ti and Co,to the 10-component hep rare-earth-based high-entropy alloys(HEAs)with a composition of ScYLaNdGdTbDyHoErLuX(X=Zr,Co and Ti)was *** enthalpy of mixing between elements was found to have a significant effect on the formation of *** addition of Co combines with elements that had a strong chemical affinity to form intermetallic compounds by the effect of *** was added with all elements with poor chemical affinity and exhibited rejection to form a phase *** were the two terminal manifestations of the role of enthalpy over *** of Zr was soluble in the matrix under the action of entropy,while the other part had a greater affinity for Sc than the other elements to form a precipitate under the action of *** was the result of the local balance between the effect of enthalpy and *** solid solution of the elements had different degrees of strengthening effect,among which Zr had the most excellent strengthening effect from 185 to 355 MPa,so the solid solution strengthening model and precipitation strengthening model were proposed to predict the strength of the alloy with the addition of Zr effectively.

关键词： High-entropy alloys Hexagonal close-packed(hcp) Phase formation rule Configuration entropy Mechanical properties

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Implementation of low-swing differential interface circuits for high-speed on-chip asynchronous interconnection

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Science in China(Series F) 2008年第7期51卷 975-984页

作者： qiao Fei YANG HuaZhong HUANG Gang WANG hui NICS Group Department of Electronic Engineering Tsinghua University Beijing 100084 China

A novel low-swing interface circuit for high-speed on-chip asynchronous interconnection is proposed in this paper. It takes a differential level-triggered latch to recover digital signal with ultra low-swing voltage less than 50 mV, and the driver part of the interface circuit is optimized for low power using the driver-array method, With a capacity to work up to 500 MHz, the proposed circuit, which is simulated and fabricated using SMIC 0.18-pm 1.8-V digital CMOS technology, consumes less power than previously reported designs.

关键词： low power circuit low-swing interface differential signaling tapered-buffer interconnect asynchronous circuit

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Losses of Ecosystem Service Values in the Taihu Lake Basin from 1979 to 2010

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Frontiers of Earth Science 2017年第2期11卷 310-320页

作者： hui ZHANG qiao WANG Guangyu LI Hanpei ZHANG Jue ZHANG College of Geographical Sciences Nanjing Normal University Nanjing 210023 China Nanjing Institute of Environmental Science Ministry of Environmental Protection Nanjing 210042 China Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET) Nanjing University of Information Science & Technology Nanjing 210044 China Environmental Satellite Application Center Ministry of Environmental Protection Beijing 100029 China

The Taihu Lake Basin, an east-coastal developed area, is one of the fastest-growing metropolitan areas in China. Ecosystem services in the Taihu Lake Basin have been overexploited and jeopardized. Based on land-use and land-cover change （LUCC） data from 1979, 1984, 2000, and 2010, in conjunction with the adjusted ecosystem service values （ESV）, changes in ESV were analyzed in detail. Results revealed that LUCC resulted in a substantial decrease in total ESV from S3.92 billion in 1979 to S2.98 billion in 2010. The ESV of cropland decreased from $1.64 billion in 1979 to S1.34 billion in 2010, which represented a 20.28% reduction. The ESV of water areas decreased from S1.08 billion in 1979 to $0.36 billion in 2010, which represented a 65.62% reduction mainly because of a decline in water quality. In terms of annual change rate, cropland and water areas showed a sustained downward trend. Spatially, ESV declines were mainly observed in Suzhou, Wuxi, Changzhou, and Shanghai, probably due to a combination of economic progress, population growth, and rapid urbanization. The research results can be a useful reference for policymakers in mitigating ESV decline.

关键词： ecosystem service values land use/land cover,water quality Taihu Lake Basin

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A facile synthesis of 2-substituted-2,3-dihydro-4(1H)-quinazolinones in 2,2,2-trifluoroethanol

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Chinese Chemical Letters 2007年第6期18卷 656-658页

作者： Rong Zhang qiao Bai Ling Xu Yan hui Wang Department of Life Science and Technology Beijing University of Chemical TechnologyBeijing 100029China Institute of Materia Medica Chinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100050China

2-Substituted-2,3-dihydro-4(1H)-quinazolinones were obtained in high yields by condensation of anthranilamide with aryl, alkyl or heteroaryl aldehydes or ketones in the refluxing 2,2,2-trifluoroethanol without any cat... 详细信息

关键词： 2,3-Dihydro-4(1H)-quinazolinone Trifluoroethanol (TFE) Fluorinated solvent

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The cytoplasmic droplet may be indicative of sperm motility and normal spermiogenesis

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Asian Journal of Andrology 2013年第6期15卷 799-805,I0009页

作者： hui Xu Shui-qiao Yuan Zhi-Hong Zheng Wei Yam Department of Laboratory Animal Medicine China Medical University Shenyang 110001 China and Department of Physiology and Cell Biology University of Nevada School of Medicine Reno NV 89557 USA

Although the cytoplasm of spermatids is removed at the end of spermiogenesis, a tiny portion is usually retained in the sperm flagellum, which is termed the cytoplasmic droplet （CD） in mammals. CDs are believed to play a role in sperm volume adaptation. However, we have noticed that epididymal spermatozoa that display initial （flagellation in situ） and progressive motility mostly possess CDs, whereas spermatozoa without CDs are rarely motile, suggesting that CDs have a role in motility development during sperm epididymal maturation. In the present study, we analyzed the relationship between the presence or absence of CDs, motility development and positional changes of CDs during sperm epididymal maturation in mice and monkeys. We also examined CDs on spermatozoa of three knockout mouse lines with late spermiogenic defects. Our data suggest that the CD is a normal organelle transiently present exclusively on epididymal spermatozoa, and normal CD morphology and location are associated with normal motility development during epididymal maturation of spermatozoa. Abnormal CD formation, e.g., a complete lack of CDs or ectopic CDs, is indicative of defective spermiogenesis. If CDs are essential for sperm motility development, then CDs may represent an ideal drug target for the development of non-hormonal male contraceptives.

关键词： cytoplasmic droplets epididymis fertility mouse semen analysis spermiogenesis sperm motility

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MPC of distillation column with side reactors for methyl acetate

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Chinese Journal of Chemical Engineering 2017年第12期25卷 1798-1804页

作者： Cuimei Bo Jun Li Lei Yang hui Yi Jihai Tang Xu qiao College of Automation and Electrical Engineering Nanjing Tech University. Nanjing210009 China State Key Laboratory of Materials-oriented Chemical Engineering Nanjing Tech University Nanjing 210009 China

This paper focuses on the dynamic control of distillation column with side reactors(SRC) for methyl acetate production. To obtain the optimum integrated structure and steady state simulation, the systematic design approach based on the concept of independent reaction amount is applied to the process of SRC for methyl acetate production. In addition to the basic control loops, multi-variable model predictive control modular with methyl acetate concentration and temperature of sensitive plate is designed. Then, based on process simulation software Aspen Plus, dynamic simulation of SRC for methyl acetate production is used to verify the effectiveness of the control scheme.

关键词： Distillation column with side reactors (SRC) Multi-variable model predictive control (MPC) Methyl acetate Steady-state optimization Dynamic simulation

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2-chlorophenol oxidation kinetic by photo-ssisted Fenton process

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Journal of Environmental Sciences 2003年第4期15卷 475-481页

作者： XU Xin hua ZHAO Wei rong HUANG Yan qiao WANG Da hui Department of Environmental Engineering Zhejiang UniversityHangzhou 310027China.

Experimental data are presented to test and validate a kinetic model for the oxidation of 2 chlorophenol wastewater by photo assisted Fenton process. The data showed that this process had produced good effects under acidic conductions. Up to 90% 2 chlorophenol was removed after 90 minute reaction time with H 2O 2 of 25% COD Cr, in , while in UV/H 2O 2 system only 16 8% 2 chlorophenol was removed after one hour treatment. The optimal pH in this reaction occurred between pH 3 0 and pH 4.0. The reaction kinetics for photo assisted Fenton process experimented in this research was investigated. Kinetic models were proposed for the treatment of 2 chlorophenol wastewater. The reaction was found to follow the 2nd order. The equations of reaction kinetics are as follows:-d[RH]d t = K RH [RH][H 2O 2] 0exp (-K H 2O 2 t );-d[COD Cr ]d t = K COD Cr [COD Cr ][H 2O 2] 0exp(-K′ t ). The prediction of the models was found to be in a good agreement with experimental results, thus confirming the proposed reaction mechanism.

关键词： 2-chlorophenol wastewater photo assisted Fenton reagent reaction kinetic

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Comparison of Dilute Organic Acid Pretreatment and a Comprehensive Exploration of Citric Acid Pretreatment on Corn Cob

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Journal of Renewable Materials 2019年第11期7卷 1197-1207页

作者： hui qiao Jingzhao Cui Shuiping Ouyang Jinjie Shi Jia Ouyang College of Chemical Engineering Nanjing Forestry UniversityNanjing210037China College of Forestry Nanjing Forestry UniversityNanjing210037China Key Laboratory of Forest Genetics and Biotechnology of the Ministry of Education Nanjing Forestry UniversityNanjing210037China

As an important agricultural waste,corn cob is one of the most abundant lignocellulosic *** this work,dilute acid pretreatment using seven different organic acids were compared for compositional analysis of corn *** first pKa of organic acids,influenced by the number and type of the side group and distance between two carboxylic groups,played a crucial role in the pretreatment *** acid was found to have better pretreatment performance than other tested dicarboxylic *** the condition of 30 mM,160°C and 60 min,the level of xylose reached 22.64 g/L in pretreatment liquid,and the pretreated corn cob demonstrated the high enhancement of enzymatic hydrolysis up to 93.4%and the ethanol yield was 73.6%.

关键词： Corn cob organic acid pretreatment citric acid enzymatic hydrolysis bio-ethanol production

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Robustness self-testing of states and measurements in the prepare-and-measure scenario with 3 → 1 random access code

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Chinese Physics B 2019年第7期28卷 144-151页

作者： Shi-hui Wei Fen-Zhuo Guo Xin-hui Li qiao-Yan Wen State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing 100876 China School of Science Beijing University of Posts and Telecommunications Beijing 100876 China

Recently, Tavakoli et *** a self-testing scheme in the prepare-and-measure scenario, showing that self-testing is not necessarily based on entanglement and violation of a Bell inequality [***.A 98 062307(2018)].They realized the self-testing of preparations and measurements in an N → 1(N ≥ 2) random access code(RAC), and provided robustness bounds in a 2 → 1 *** all N → 1 RACs with shared randomness are combinations of 2 → 1 and 3 → 1 RACs, the3 → 1 RAC is just as important as the 2 → 1 *** this paper, we find a set of preparations and measurements in the3 → 1 RAC, and use them to complete the robustness self-testing analysis in the prepare-and-measure *** method is robust to small but inevitable experimental errors.

关键词： robustness self-testing prepare-and-measure scenario 3 → 1 random access code

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