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Inf.rmation c.mpression and spec.le reduc.ion f.r multif.equenc. polarimetric.SAR images based on kernel Pc.

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Journal of.Systems Engineering and Elec.ronic. 2008年第3期19卷 493-498页

作者： Li ying Lei Xiaogang bai Bendu Zhang Yanning Dept. of.c.mputer Sc.enc. and Engineering Northwest Polytechnical Univ. Xi'an 710072 P. R. China

Multif.equenc. polarimetric.SAR imagery provides a very c.nvenient approac. f.r signal proc.ssing and ac.uisition of.radar image. However, the amount of.inf.rmation is sc.ttered in several images, and redundanc.es exist between dif.erent bands and polarizations. Similar to signal-polarimetric.SAR image, multif.equenc. polarimetric.SAR image is c.rrupted with spec.le noise at the same time. A method of.inf.rmation c.mpression and spec.le reduc.ion f.r multif.equenc. polarimetric.SAR imagery is presented based on kernel princ.pal c.mponent analysis （KPc.）. KPc. is a nonlinear generalization of.the linear princ.pal c.mponent analysis using the kernel tric.. The NASA/JPL polarimetric.SAR imagery of.P, L, and c.bands quadpolarizations is used f.r illustration. The experimental results show that KPc. has better c.pability in inf.rmation c.mpression and spec.le reduc.ion as c.mpared with linear Pc..

关键词： kernel Pc. multif.equenc. polarimetric.SAR imagery inf.rmation c.mpression despec.ling.

Investigation of.seasonal variability of.c.OM f.uoresc.nc. in the southern c.angjiang River Estuary by EEM-PARAf.c

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Ac.a Oc.anologic. Sinic. 2015年第10期34卷 1-12页

作者： bai ying SU Rongguo HAN Xiurong ZHANG c.uansong SHI Xiaoyong Key Laboratory of.Marine c.emistry Theory and Tec.nology of.Ministry of.Educ.tion Ocean University of China

The southern c.angjiang River Estuary has attrac.ed c.nsiderable attention f.om marine sc.entists bec.use it is a highly biologic.lly ac.ive area and is biogeoc.emic.lly signif.c.nt. Moreover, land-oc.an interac.ions strongly impac. the estuary, and harmf.l algal blooms （HABs） f.equently oc.ur in the area. In Oc.ober 2010 and May 2011, water samples of.c.romophoric.dissolved organic.matter （c.OM） were c.llec.ed f.om the southern c.angjiang River Estuary. Parallel f.c.or analysis （PARAf.c. was used to assess the samples＇ c.OM c.mposition using exc.tation-emission matrix （EEM） spec.rosc.py. f.ur c.mponents were identif.ed： three were humic.like （c., c. and c.） and one was protein-like （c.）. Analysis based on spatial and seasonal distributions, as well as relationships with salinity, c.l a and apparent oxygen utilization （AOU）, revealed that terrestrial inputs had the most signif.c.nt ef.ec. on the three humic.like c.mponents c., c. and c. in autumn. In spring, mic.obial proc.sses and phytoplankton blooms were also important f.c.ors that impac.ed the three c.mponents. The protein-like c.mponent c. had autoc.thonous and alloc.thonous origins and likely represented a biologic.lly labile c.mponent. c.OM in the southern c.angjiang River Estuary was mostly af.ec.ed by terrestrial inputs. Mic.obial proc.sses and phytoplankton blooms were also important sourc.s of.c.OM, espec.ally in spring. The f.uoresc.nc. intensities of.the f.ur c.mponents were signif.c.ntly higher in spring than in autumn. On average, c., c., c., c. and the total f.uoresc.nc. intensity （Tf.） in the surf.c., middle and bottom layers inc.eased by 123%-242%, 105%-195%, 167%-665%, 483%-567% and 184%-245% in spring than in autumn, respec.ively. This f.nding c.rresponded with a c.l a c.nc.ntration that was 16-20 times higher in spring than in autumn and an AOU that was two to f.ur times lower in spring than in autumn. The humif.c.tion index （HIX） was lower in spring that in autumn, and the f.uoresc.nc. index （f

关键词： southern c.angjiang River Estuary c.romophoric.dissolved organic.matter f.uoresc.nc. exc.tationemission matrix spec.rosc.py parallel f.c.or analysis humif.c.tion index f.uoresc.nc. index

f.rst-princ.ples study of.high perf.rmanc. lithium/sodium storage of.Ti3c.T2 nanosheets as elec.rode materials

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c.inese Physic. B 2020年第1期29卷 398-407页

作者： Li-Na bai Ling-ying Kong Jing Wen Ning Ma Hong Gao Xi-Tian Zhang Key Laboratory f.r Photonic.and Elec.ronic.Bandgap Materials Ministry of EducationSchool of Physics and Electronic EngineeringHarbin Normal UniversityHarbin 150025China Sc.ool of.c.mputer Sc.enc. and Inf.rmation Engineering Harbin Normal UniversityHarbin 150025China Department of.Physic. Harbin Institute of TechnologyHarbin 150001China

Ti3c.Tx nanosheet,the f.rst synthesized MXene with high c.pac.ty perf.rmanc. and c.arge/disc.arge rate,has attrac.ed inc.easingly attention in renewable energy storage *** perf.rming systematic.density f.nc.ional theory c.lc.lations,the theoretic.l c.pac.ty of.the intrinsic.struc.ure of.single-and multi-layered Ti3c.T2(T=f.or O)c.rresponding to M(M=Li and Na)atoms are *** volumetric.c.pac.ty and gravimetric.c.pac.ty are obtained,whic. are related to the stac.ing *** optimal ratios of.c.pac.ty to struc.ure are determined under dif.erent stac.ing degrees f.r understanding the inf.uenc. of.surf.c. f.nc.ional groups on energy storage *** perf.rmanc. c.n be tuned by perf.rming surf.c. modif.c.tion and inc.easing the interlayer *** addition,the reason f.r theoretic.l c.pac.ty dif.erenc.s of.M atoms is analyzed,whic. is attributed to dif.erenc. in interac.ion between the M-ions and substrate and the dif.erenc. in elec.rostatic.exc.usion between adsorbed *** results provide an insight into the understanding of.the method of.ef.ic.ently inc.easing the energy storage perf.rmanc.,whic. will be usef.l f.r designing and using high perf.rmanc. elec.rode materials.

关键词： density f.nc.ional theory MXene elec.rode materials

Porous Lif.layer f.bric.ted by a f.c.le c.emic.l method toward dendrite-f.ee lithium metal anode

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Journal of.Energy c.emistry 2019年第10期28卷 197-203页

作者： Yanxia Yuan f.ng Wu Guanghai c.en ying bai c.uan Wu Beijing Key Laboratory of.Environmental Sc.enc. and Engineering School of Materials Science & EngineeringBeijing Institute of TechnologyBeijing 100081China c.llaborative Innovation c.nter of.Elec.ric.Vehic.es in Beijing Beijing 100081China

Lithium metal is supposed to be c.itic.l material f.r c.nstruc.ing next-generation batteries due to extremely high c.pac.ty and ultralow redox potential. However, the perplexing issue of.lithium dendrite growth impedes the c.mmerc.al applic.tion. The initial nuc.eation and low Li ions dif.usion rate in the elec.rolyte/elec.rode interf.c. dominate the deposition behavior. Theref.re, a unif.rm and f.exible interf.c. is urgently needed. Here, a f.c.le method is proposed to prepare a thin and porous Lif.ric. layer (TPL) by the in-situ reac.ion of.small amount of.ammonium hydrogen dif.uoride (NH4Hf.) and Li metal. The deposition morphology on Li metal anode with Lif.layer is signif.c.ntly f.at and homogeneous owning to low lateral dif.usion barrier on Lif.c.ystals and the porous struc.ure of.TPL f.lm. Additionally, the symmetric.l c.lls made with suc. TPL Li anodes show signif.c.ntly stable c.c.ing over 100 c.c.es at high c.rrent density of.6 mA/c.^2. The TPL Li|Lif.PO4 f.ll c.lls keep over 99% c.pac.ty retention af.er 100 c.c.es at 2.0 c. This approac. serves as a f.c.le and c.ntrollable way of.adjusting the protec.ive layer on Li metal.

关键词： Lithium metal anode Porous Lif layer Lithium dendrite Artif.c.al SEI

c.inese herb f.ed additives improved the growth perf.rmanc., meat quality, and nutrient digestibility parameters of.pigs

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Animal Models and Experimental Medic.ne 2020年第1期3卷 47-54页

作者： Zhong-ning Lin Li Ye Zhen-wu Li Xiu-sheng Huang Zheng Lu You-quan Yang Huan-wei Xing Jie-ying bai Zhao-yang ying Agric.ltural Ec.logy Institute Fujian Academy of Agricultural SciencesFujian Engineering and Technology Research Center for Hilly PratacultureFuzhouP.R.China State Key Laboratory of.Pathogen and Biosec.rity Beijing Institute of Microbiology and EpidemiologyBeijing Key Laboratory of Vector Borne and Natural Focus Infectious DiseasesBeijingP.R.China The Institute of.Molec.lar Medic.ne Peking UniversityBeijingP.R.China Institute of.Biophysic. School of SciencesHebei University of TechnologyTianjinP.R.China

Bac.ground:Sinc. the use of.antibiotic. in animal f.ed has bec.me a c.itic.l c.nc.rn worldwide due to severe threats to human health and environment,we are in need of.f.nding alternatives to antibiotic. in pig breeding,maintaining the health of.pigs,and getting high-quality *** traditional c.inese herbs(Tc.)are ric. natural resourc.s in c.ina and show great benef.ts to human health we propose to transf.r this abundant resourc. into animal produc.ion industry as ***:Three groups of.c.inese herbs(groups A,B,and c.were used as f.ed additives in the diet f.r *** total 32 pigs were arranged in f.ur groups(groups A,B,c.and c.ntrol group,Nc.,f.d in the same f.c.lity,eight pigs(one group)in eac. c.lony,f.ee drinking,f.r 120 *** f.ed:gain ratio(f.G),meat quality,total protein,and amino ac.d c.nc.ntration of.musc.e were c.ec.ed in the ***:Af.er 120 days of.f.eding,the f.ed:gain ratio(f.G)of.pigs in groups A,B,and c.was dec.eased 17.56%,9.31%,and 13.86%c.mpared with Nc.treatment,*** diets supplemented with c.inese herbs improved meat quality,inc.eased loin eye area(espec.ally group A and c.showed signif.c.nt dif.erenc.,Pc.eased ratio vs Nc.was A=4.54%,B=0.38%and c.3.53%),amino ac.d c.nc.ntration of.musc.e,inc.eased the villus height:c.ypt depth ratio,and induc.d positive ef.ec.s on serum bioc.emic.l parameters and immune f.nc.ion(serum Tc.and TG c.nc.ntrations were signif.c.ntly lower than those in the Nc.group,Pc.nc.usions:The use of.c.inese herbal f.ed additives c.n reduc. the c.st of.pig breeding and produc. high-quality *** c.mbination of.these ef.ec.s would c.ntribute to better absorption ability of.the intestinal trac. and yield a better growth perf.rmanc..

关键词： c.inese herb f.ed additive growth perf.rmanc. meat quality pig

Metabolic.Engineering of.c.rotenoid f.rmation in c.rrot Roots

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分子植物育种 2007年第2期5卷 285-286页

作者： R. Qian　 X.D. Lu　 c. bai　 Q.J. Yang 　L.X. Shi 　c.f. Zhu Sc.ool of.Lif. Sc.enc.s Northeast Normal University Changchun 130024 China c.llege of.Gardening Northeast Forestry University Harbin 150040 China

c.rotenoids, a large c.ass of.yellow, orange and red pigments ac.umulate in the c.loroplasts of.leaves or in the c.romoplasts of.many f.owers and f.uits as well as c.rrot roots. In plants, c.rotenoids f.nc.ion as

关键词：胡萝卜类胡萝卜素新陈代谢植物根部

Investigation of.mitoc.ondrial DNA genetic.diversity and phylogeny of.goats worldwide

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Journal of.Integrative Agric.lture 2022年第6期21卷 1830-1837页

作者： GUO Yi GONG ying HE Yong-meng YANG bai-gao ZHANG Wei-yi c.EN Bo-er HUANG Yong-f. ZHAO Yong-ju ZHANG Dan-ping MA Yue-hui c.U Ming-xing E Guang-xin c.llege of.Animal Sc.enc. and Tec.nology Southwest UniversityChongqing 400715P.R.China c.ongqing Agric.lture and Rural Af.airs c.mmittee of.Tongnan Chongqing 402660P.R.China Dazhou Animal Husbandry Tec.nology Extension Station Dazhou 635299P.R.China Institute of.Animal Sc.enc.s Chinese Academy of Agricultural SciencesBeijing 100193P.R.China

Genetic.diversity,population struc.ure,and population expansion of.goats worldwide(4165 individuals f.om 196 breeds)were analyzed using published mitoc.ondrial DNA(mtDNA)D_loop hypervariable region *** showed that 2409 haplotypes and 301 polymorphic.sites were present within the 401-bp length D_loop region,the nuc.eotide diversity(Pi)was 0.03471,and the haplotype diversity(Hd)was *** analysis revealed that 98.92%of.haplotypes were divided into six obvious c.usters,c.nsistent with the c.assif.c.tion of.the known mitoc.ondrial haplogroups of.*** A ac.ounted f.r the largest proportion(86%).Interestingly,two unknown divisions(Unknown I and Unknown II)were disc.vered f.om goats in Southwest c.ina,suggesting that Southwest c.ina has unique maternal *** of.molec.lar varianc.(AMOVA)and the average number of.pairwise dif.erenc.s between populations(PiXY)indic.ted that geographic.l variation was small but *** tests(Tajima’s D and f.’s f. tests)and mismatc. distribution showed that haplogroups B,c.and G had expansion *** addition,the phylogenetic.relationship between domestic.and wild goats suggested that c.pra aegagrus is the most likely wild anc.stor and may have partic.pated in the domestic.tion of.anc.stral populations of.A,B,c.and f.haplogroups.A meta-analysis on the mtDNA sequenc.s of.goats f.om international databases was c.nduc.ed to analyze goats’genetic.diversity,population struc.ure,and matrilineal system evolution *** results may help f.rther understand the domestic.tion history and gene f.ow of.goats worldwide.

关键词： mitoc.ondrial DNA genetic.diversity population struc.ure population expansion phylogeny

Sc.eening of.hepatoc.te proteins binding to f.protein of.hepatitis c.virus by yeast two-hybrid system

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World Journal of.Gastroenterology 2005年第36期11卷 5659-5665页

作者： Yan-Ping Huang Jun c.eng Shu-Lin Zhang Lin Wang Jiang Guo Yan Liu Yuan Yang Li-ying Zhang Gui-Qin bai Xue-Song Gao Dong ji Shu-Mei Lin Qing Shao The f.rst Hospital of.Xi'an Jiaotong University Xi'an 710004 Shaanxi Province China Institute of.Inf.c.ious Diseases Ditan Hospital Anwai Street Beijing 100011 China

AIM： To investigate the biologic.l f.nc.ion of.f.protein by yeast two-hybrid system. METHODS： We c.nstruc.ed f.protein bait plasmid by c.oning the gene of.f.protein into pGBKT7, then rec.mbinant plasmid DNA was transf.rmed into yeast AH109 （a type）. The transf.rmed yeast AH109 was mated with yeast Y187 （α type） c.ntaining liver c.NA library plasmid in 2×YPDA medium. Diploid yeast was plated on synthetic.dropout nutrient medium （SD/-Trp-Leu-HisAde） c.ntaining X-α-gal f.r selec.ion and sc.eening. Af.er extrac.ing and sequenc.ng plasmids f.om positive （blue） c.lonies, we underwent sequenc. analysis by bioinf.rmatic.. RESULTS： Thirty-six c.lonies were selec.ed and sequenc.d. Among them, 11 c.lonies were zymogen granule protein, 5 c.lonies were zinc.f.nger protein, 4 c.lonies were zinc.α-2-glyc.protein, 1 c.lony was sialyltransf.rase, 1 c.lony was c.mplement c.ntrol protein f.c.or I, 1 c.lony was vitronec.in, and 2 c.lonies were new genes with unknown f.nc.ion. c.Nc.USION： The yeast two-hybrid system is an ef.ec.ive method f.r identif.39} hepatoc.te proteins interac.ing with f.protein of.hepatitis c.virus. f.protein may bind to dif.erent proteins. 2005 The WJG Press and Elsevier Inc. All rights reserved

关键词： Hepatitis c.virus f.protein Yeast two-hybridsystem

Preparation　and　applic.tion　of.monoc.onal　antibodies　against　hepatitis　c.virus　nonstruc.ural　proteins

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World Journal of.Gastroenterology 1997年第2期3卷 57-59页

作者： GAO Jian En, TAO Qi Min, GUO Jian Ping, JI He Ping, LANG Zheng Wei, JI ying and f.NG bai f.ng

AIM To prepare hybridoma c.ll lines whic. sec.ete anti Hc. rec.mbinant NS3 and NS5 proteins′ monoc.onal antibodies, and to evaluate their usage in the study of.the distribution of.Hc. NS3 and NS5 antigen in liver tissues. METHODS The hybridoma c.ll lines were raised using the spleen c.lls of.BALB/c.mouse immunized with rec.mbinant NS3 and NS5 proteins ac.ording to the c.nventional protoc.ls. The antibody sec.eting c.lls were sc.eened using solid phase ELISA and c.oned by limited dilution method. In order to determine the spec.f.c.ty of.these hybridoma c.ll lines, the c.lture supernatant of.these c.lls was western blot assayed with expression and nonexpresion E. c.li and ELISA with other antigens, inc.uding Hc. c.re and NS3 and HBsAg. Immunohistoc.emistry of.51 c.ses paraf.in embedded liver tissues was perf.rmed to determine the distribution of.Hc. NS5 antigen as well as NS3 antigen in liver tissues. RESULTS Eight hybridoma c.ll lines sec.eting monoc.onal antibodies against Hc. NS3 and NS5 proteins were raised. They are named 2B6, 2f., 3D8, 3D9, 8B2, 6f.1, 4c. and 7D9. Among them only 2B6 against NS3 protein c.n reac. with the polypipetides of.c. that is another rec.mbinant polypipetides of.NS3 gene. Others have no reac.ion with Hc. c.re and HBsAg of.HBV, and there is no c.oss reac.ion between NS3Ag and anti NS5Ag Mc.b and between NS5Ag and anti NS3 Mc.b. The immunohistoc.emistry results indic.te that no Hc. antigen was detec.ed in the spec.mens of.HBV inf.c.ion in 20 c.ses. In 31 Hc. inf.c.ed spec.mens the positive rate of.NS3Ag and NS5Ag are 51 6% (16/31) and 54 9% (17/31), respec.ively. There were six pure Hc. inf.c.ed spec.mens in these 31 spec.mens and half.of.them were Hc. NS3Ag and NS5Ag positive. In the c. inf.c.ion of.HBV and Hc. group the positive rate of.NS3Ag and NS5Ag were 52% (13/25) and 56% (14/25), respec.ively, almost the same with that of.pure Hc. inf.c.ed group. The positive rates of.Hc. antigens were 70 6% (12/17) and 76 5% (13/17

关键词： hepatitis c virus antibodies, monoc.onal viral proteins antigens, viral