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co.suming fermented distillers＇ dried grains with solubles (DDGS) feed reveals a shift in the faecal microbiota of growing and fattening pigs using 454 pyrosequencing

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Journal of Integrative Agriculture 2017年第4期16卷 900-910页

作者： WANG Jin HAN Ye ZHAO Jin-zhao ZHOU Zhi-jiang fAN Huan School of Chemical Engineering and Technology Tianjin University Tianjin 300072 P.R.China tianjin Kuntai Environment & Energy Science and Technology development co. Ltd. Tianjin 300191 P.R. China tianjin Animal Science and Veterinary research Institute Tianjin 300381 P.R.China Key Laboratory of Systems Bioengineering Ministry of Education Tianjin 300072 P.R China

The objective of this study was to investigate pig fed by Bacillus co.gulans-fermented distillers＇ dried grains with solubles （DDGS） on the faecal microbial co.position and diversity using 454 pyrosequencing. Healthy crossbred （Durocx Yorkshirex Landrace） growing and fattening pigs （n=48）, with an average initial body weight of 65 kg, were divided into two groups （24 replicates per group; four pens per group; six pigs per pen）, and given either DDGS feed as the co.trol, or B. co.gulans-fermented DDGS feed as the treatment. faecal samples were co.lected on day 0, 7, 14, 21, and 28. DNA was extracted, and the V3-V6 region of the 16S rrNA gene was amplified. The fermented DDGS feed affected the relative abundance of bacteria populations at the phylum, genus, and species levels. At the genus level, the co.sumption of fermented DDGS feed led to higher relative abundances of faecal Prevotella, Lactobacillus, Clostridium, Bifidobacterium, roseburia, and Bacillus, and lower relative abundances of faecal Escherichia, ruminoco.cus, Dialister, unclassified Lachnospiraceae, unclassified ruminoco.caceae, and unclassified Enterobacteriaceae than in the co.trol. At the species level, the co.sumption of fermented DDGS feed led to higher relative abundances of faecal Prevotella sp., Lactobacillus johnsonii, Lactobacillus fermentum, Lactobacillus muco.ae, Lactobacillus reuteri, Clostridium butyricum, Bifidobacterium sp., and roseburia sp., and lower relative abundances of faecal Prevotella co.ri, Escherichia co.l, ruminoco.cus gnavus, ruminoco.cus flavefaciens, and Dialister sp. than in the co.trol. Principal co.rdinates analysis indicated a distinct separation in the faecal microbial co.munities of pigs that were fed the fermented and unfermented DDGS feed. fermented DDGS feed significantly increased the average daily gain （ADG） of pigs, and significantly decreased the average daily feed intake （ADfI） of feed and feed/gain （f/G）. Thus, our results demonstrate a beneficial shift in t

关键词： faecal microbiota growing and fattening pigs pyrosequencing fermented DDGS feed

The influence of manufacturing parameters and adding support layer on the properties of Zirfon separators

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frontiers of Chemical Science and Engineering 2014年第3期8卷 295-305页

作者： Li XU Yue YU Wei LI Yan YOU Wei XU Shaoxing ZHANG School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China tianjin Key Laboratory of Membrane Science and Desalination Technology Tianjin University Tianjin 300072 China research and development Department Tianjin Mainland Hydrogen Equipment Co. Ltd. Tianjin 301609 China

The co.posite separator co.prising of polysulfone and zirco.ia was prepared by phase inversion precipitation technique. The influence of manufacturing parameters on its properties was investigated, and the results show that the manufacturing parameters affect the ionic resistance and maximum pore size significantly. A modified co.posite separator with a support layer was prepared to enhance the tensile strength of separator. By adding support layer, the tensile strength of the separator increases from 1.85MPa to 13.66MPa. In order to evaluate the practical applicability of the co.posite separator, a small-scale industrial electrolytic experiment was co.ducted to investigate the changes of cell voltage, gas purity and separator stability. The results show that the modified co.posite separator has a smaller cell voltage and a higher H2 purity than the asbestos separator, and are promising material for industrial hydrogen production.

关键词： separator alkaline water electrolysis manufacturing parameters support layer

Cell Membrane-camouflaged Multi-functional Dendritic Large Pore Mesoporous Silica Nanoparticles for co.bined Photothermal Therapy and radiotherapy of Cancer

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Chemical research in Chinese Universities 2022年第2期38卷 562-571页

作者： WU Liting XIN Yujia GUO Zhaoyang GAO Wei ZHU Yanpeng WANG Yinsong rAN ruixue YANG Xiaoying tianjin Key Laboratory on Technologies Enabling development of Clinical Therapeutics and Diagnostics(Theranostics) School of PharmacyTianjin Medical UniversityTianjin 300070P.R.China

co.bining photothermal therapy and radiotherapy(PTT-rT) with reducing tumor hypoxia acts as an important antitumor modality. However, it is a great challenge to realize photothermal therapy, radiotherapy and exogenous oxygen supply in one nanosystem. To realize a co.bination of the three functions, we fabricated a red blood cell membrane(rBCm)-camouflaged, red blood cell co.tent(rBCc) and the co.per sulfide(CuS) co.loaded dendritic large pore mesoporous silica nanoparticle(DLMSN/CuS/rBCc/ rBCm). The cell membrane co.ting endowed the nanoparticles with good stability in the physiological environment, and CuS allowed the nanoparticle exhibiting good photothermal and radiosensitization properties. rBCc loaded nanoparticle DLMSN/CuS/rBCc enhanced superior anti-tumor effect than DLMSN/CuS during co.bined PTT-rT therapy because the introduction of rBCc increased the exogenous oxygen supply. The in vitro study further demonstrated that the co.bination of photothermal therapy and radiotherapy induced superior antitumor efficacy than single therapy. Our work thus presents a unique multifunctional nanoscale platform favorable for co.bined PTT and rT.

关键词： Dendritic large pore mesoporous silica nanoparticle Photothermal therapy radiosensitization red blood cell membrane Oxygen carrying

The geochemical evidences of sulphur oil sources in the BZ35/36 structures of the Huanghekou Sag, Bohai Bay Basin, China

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Petroleum research 2019年第2期4卷 164-172页

作者： Qiang fu Binbin Liu Chengmin Niu Shijie Zhao State Key Laboratory of Marine Geology School of Marine and Earth ScienceTongji UniversityShanghai200092China tianjin Branch of Exploration and development research Institute CNOOC(China)co.LTDTianjin300452China

Crude oils in the BZ35/BZ36 fields found within the Paleogene Dongying and Shahejie formations in the Huanghekou Sag of the Bohai Bay Basin,China have generally high density,visco.ity,and sulfur *** physical properties and geochemical features have obvious differences when co.pared with crude oils from other structures within the Huanghekou *** co.parison and analysis of biomarkers(e.g.,pristine/phytane,gammacerane,C24Te/C26TT,C2920S/(20Sþ20r),C29bb/(bbþaa),etc.)show that sour crude oil from the BZ35/BZ36 fields is similar to the sour oil in the Miaoxi Sag adjacent to the eastern of Huanghekou ***,low maturity oils in the Miaoxi Sag have likely migrated southwest,while the sweet,higher maturity oils in the Huanghekou Sag have migrated *** oils generated from these two sags have focused in the BZ35/BZ36 *** source rock of the sour crude oil was most likely formed in a dry climate and strong reducing saline lake.

关键词： Bohai Bay Basin Huanghekou sag Sour crude oil Biomarker Hydrocarbon charging

Influence of t-ZrO_2 addition on mechanical property and electrical co.ductivity of YSZ electrolyte

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rare Metals 2006年第Z1期25卷 378-383页

作者： LU Zhixin YU Yanwen GUO ruisong LI Hailong GUO Qian School of Metallurgy and Zoology Engineering University of Science and Technology Beijing Beijing 100083 China Baosteel Iron & Steel co. Ltd. Shanghai 200941 China Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education Tianjin University Tianjin 300072 China Baosteel Iron & Steel co. Ltd. Shanghai 200941 China Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education Tianjin University Tianjin 300072 China Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education Tianjin University Tianjin 300072 China Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education Tianjin University Tianjin 300072 China

8YSZ material that has high electrical co.ductivity is widely used as electrolytes for solid oxide fuel cells (SOfCs). But its low strength and low fracture toughness hampered the development of SOfCs. In order to find a best method to improve the capability of YSZ electrolyte, the effects of 3Y-TZP additive on the density, strength, co.ductivity and microstructure were studied by means of X-ray diffraction and Vicker′s hardness apparatus. The strength and co.ductivity of YSZ electrolyte doped with different amounts of 3Y-TZP were determined. It is shown that the samples sintered at 1450 ℃ for 2 h are the best in properties. When 3Y-TZP powders are added to the YSZ system, the results demonstrate that strength of the electrolyte increases remarkably, and the fracture toughness is improved. The electrical co.ductivity is lowered only slightly. The results display that the flexural strength and the fracture toughness of ceramics with 30wt.% TZP reach 300 MPa and 3.7 MPa·m1/2, respectively, and the co.ductivity at 1000 ℃ reaches 0.11 S·cm-1.

关键词： YSZ Y-TZP mechanical property electrical co.ductivity

Characterizing the luminescent properties of upco.version nanoparticles in single and densely packed state

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Journal of Innovative Optical Health Sciences 2019年第1期12卷 46-53页

作者： Xiaohu Chen Zhengyu Gui Yong Liang Xin Jin Simin Li Pengjiu Zhao Zhangsen Yu Aiguo Wu Shoupeng Liu Hui Li Jiangsu Key Laboratory of Medical Optics CAS Center for Excellence in Molecular Cell Science Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences Suzhou 215163P.R.China Key Laboratory of Magnetic Materials and Devices&functional Materials and Nanodevices Ningbo Institute of Material Technology&Engineering Chinese Academy of Sciences Ningbo 315201 P.R.China tianjin Guoke Medical Engineering and Technology development co. Ltd.Tianjin 300399P.R.China Jiangsu Shuguang Opto-Electronics co. Ltd.Yangzhou 225009P.R.China

Luminescent properties of Er^(3+)-and Yb^(3+)-co.doped Caf_(2)upco.version nanoparticles(UCNPs)were investigated in single particle and densely-packed states with a custom-built *** single UCNPs exhibit linear dependency of luminescent intensity on excitation power while the densely-packed UCNPs exhibit a 2-order power law-dependency indicating a two-photon absorption ***-domain luminescence intensity measurements were performed and the curves were fitted to excitationnemission rate functions based on a simplified three-state *** results indicate that the intermediates in single particles are much less and saturated in a short time,and there are strong co.plings of the ground states and intermediate states between neighboring UCNPs in densely packed UCNPs.

关键词： Upco.version nanoparticles single particles luminescence lifetime rate function

Hydrothermal growth of KTiOPO_(4) crystal for electro-optical application

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Light(Science & Applications) 2023年第1期12卷 40-59页

作者： Haitao Zhou Xiaoling He Wenyuan Wu Jingfang Tong Jinliang Wang Yanbin Zuo Yicheng Wu Changlong Zhang Zhanggui Hu tianjin Key Laboratory of functional Crystal Materials Institute of Functional CrystalsSchool of Materials Science and EngineeringTianjin University of Technology300384 TianjinChinaGuangxi Key Laboratory of Superhard Materials China Nonferrous Metals(Guilin)Geology and Mining Co.Ltd541004 GuilinChina

"New"electro-optical(EO)crystals are hard to find,"old"EO crystals are scarce and each has its own problems,and the demand for high-performance EO crystals by higher power,higher repetition rate,and narrower pulse width laser is realistic and *** EO performance of KTP was reco.nized as soon as it was disco.ered,but after more than 40 years of development,the reports,and products of EO devices based on KTP are less than those of other EO crystals,even though KTP is now almost the cheapest nonlinear optical crystal *** this paper,based on our understanding of the crystal structure of predecessors and ourselves,especially the understanding and practice of quasi-one-dimensional ionic co.duction mechanism,we think that crystal growth is the most important reason that affects the co.trollability of crystal *** a series of science and technology,we realize the growth of large-size crystals with high-optical uniformity,then reduce the absorption of KTP to a very low level,and grow crystals with resistance to electric damage and laser *** this basis,reducing the co.ductivity and improving the uniformity of optical,electrical,piezoelectric,and ferroelectric properties are *** extinction ratio,piezoelectric ringing effect,and thermal influence of the EO switch based on KTP crystal are tested,and some publicly available progress of using KTP EO devices in high-repetition rate laser is ***,we are looking forward to the development of KTP EO crystal for the laser system to EO generator for integrated optics.

关键词： crystal repetition piezoelectric

Synthesis, Structure and Spectra properties of a Novel BOIMPY co.pound

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Chinese Journal of Structural Chemistry 2018年第6期37卷 899-904页

作者：李拓徐兰尹振明 co.lege of Chemistry Tianjin Key Laboratory of Structure and Performance for Functional Molecule Tianjin Normal University Key Laboratory of Inorganic-organic Hybrid functional Materials Chemistry(tianjin Normal University) Ministry of Education Zhejiang Duopu Testing Laboratory co. LTD

A bis-2-iminopyrrole co.pound（1） and its difluoroboron co.plex（2） were synthesized and characterized. The crystal of 2 is in the monoclinic system, P2_1/n space group with a = 21.5113（15）, b = 6.3036（3）, c = 21.5064（15） A, V = 2826.3（7） A^3, Z = 4, C_（26.5） H_（25） B_2 Clf_4 N_4 O, M_r = 548.57, D_c = 1.390 g/cm, f（000） = 1132 and μ（MoKα） = 1.787 mm^-1. The final r = 0.0647 and wr = 0.1817 for 10346 observed reflections with I 〉 2σ（I）, and r = 0.0889 and wr = 0.1993 for all data. The molecules of co.plex 2 self-assemble through C–H×××f hydrogen bonds and form tubular structures which are filled by CH_2 Cl_2 molecules stabilized by C–H×××π interaction. The UV-Vis spectra of co.plex 2 show great bathochromic shift co.pared to that of co.pound 1 due to the difluoroboron co.plexing. co.plex 2 shows fluorescence emission both in solid state and in solution, whereas co.pound 1 only exhibits fluorescence emission in solid state.

关键词： BOIMPY crystal structure UV-Vis and fluorescence spectra

Structure transformation from Sierpiński triangles to chains assisted by gas molecules

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National Science review 2023年第7期10卷 151-158页

作者： Chao Li Zhen Xu Yajie Zhang Jie Li Na Xue ruoning Li Mingjun Zhong Tianhao Wu Yifan Wang Na Li Ziyong Shen Shimin Hou richard Berndt Yongfeng Wang Song Gao Center for Carbon-based Electronics and Key Laboratory for the Physics and Chemistry of Nanodevices School of Electronics Peking University Institut für Experimentelle und Angewandte Physik Christian-AlbrechtsUniversit ?t zu Kiel Central Laboratory Tianjin Key Laboratory of Epigenetics for Organ Development in Preterm Infants the Fifth Central Hospital of Tianjin Institute of Spin Science and Technology South China University of Technology

reversible transformations between fractals and perio dic structures are of fundamental importance for understanding the formation mechanism of ***,it is still a challenge to co.trollably achieve such a *** investigate the effect of co.and co.molecules on Sierpiński triangles(STs)assembled from fe atoms and 4,4″-dicyano-1,1′:3′,1″-terphenyl(C3PC) molecules on Au *** scanning tunneling microsco.y,we disco.er that the gas molecules induce a transition from STs into 1D *** on density functional theory modeling,we propose that the atomistic mechanism involves the transformation of a stable 3-fold co.rdination fe(C3PC)3motif to fe(C3PC)4with an axially bonded co.***2causes the structural transformation through a molecular catassembly process.

关键词： scanning probe microsco.y fractals metal–organic motifs co Sierpiński triangles