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Communications in Theoretical Physics 2003年第2期39卷 157-166页

作者： Hao San-ru Hou Bo-Yu xi xiao-Qiang Yue rui-Hong Institute of Modern Physics Northwest University Xi'an 710069 China

In the paper we generalize the standard teleportation to the conclusive teleportation case which can teleportan arbitrary d-dimensional N-particle unknown state via the partially entangled quantum channel. We show that onlyif the quantum channel satisfies a constraint condition can the most general d-dimensional N-particle unknown state beperfect conclusively teleported. We also present a method for optimal conclusively teleportation of the N-particle statesand for constructing the joint POVM which can discern the quantum states on the sender's (Alice's) side. Two typicalexamples are given so that one can see how our method works.

关键词： N-粒子态量子隧道光学远距传物

Accessible Information for Equally-Distant Partially-Entangled Alphabet State Resource

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Communications in Theoretical Physics 2002年第2期37卷 149-154页

作者： Hao San-ru Hou Bo-Yu xi xiao-Qiang Yue rui-Hong Institute of Modern Physics Northwest University Xi'an 710069 China

We have proposed a quantum system with equally-distant partially-entangled alphabet states which hasthe minimal mutual overlap and the highly distinguishability, these quantum states are used as the "signal states" ofthe quantum communication. We have also constructed the positive operator-valued measure for these "signal states"and discussed their entanglement properties and measurement of cntanglement. We calculate the accessible informationfor these alphabet states and show that the accessible information is closely related to the entanglement of the "signalstates": the higher the entanglement of the "signal states", the better the accessible information of the quantum *** the accessible information reaches its maximal value when the alphabet states have their maximal entanglemcnt.

关键词：量子系统可获信息部分交缠态

Advanced glycation end products induce neural tube defects through elevating oxidative stress in mice

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Neural Regeneration Research 2018年第8期13卷 1368-1374页

作者： ru-Lin Li Wei-Wei Zhao Bing-yan Gao Laboratory for Development College of Life Sciences Northwest University

Our previous study showed an association between advanced glycation end products （AGEs） and neural tube defects （NTDs）. To understand the molecular mechanisms underlying the effect of AGEs on neural tube development, C57BL/6 female mice were fed for 4 weeks with com- mercial food containing 3% advanced glycation end product bovine serum albumin （AGE-BSA） or 3% bovine serum albumin （BSA） as a control. After mating mice, oxidative stress markers including malondialdehyde and H202 were measured at embryonic day 7.5 （E7.5） of ges- tation, and the level of intracellular reactive oxygen species （ROS） in embryonic cells was determined at E8.5. In addition to evaluating NTDs, an enzyme-linked immunosorbent assay was used to determine the effect of embryonic protein administration on the N-（carboxymethyl） lysine reactivity of acid and carboxyethyl lysine antibodies at E10.5. The results showed a remarkable increase in the incidence of NTDs at El0.5 in embryos of mice fed with AGE-BSA （no hyperglycemia） compared with control mice. Moreover, embryonic protein administration resulted in a noticeable increase in the reactivity of N-（carboxymethyl） lysine and N（ε）-（carboxyethyl） lysine antibodies. Malondialdehyde and H2O2 levels in embryonic cells were increased at E7.5, followed by increased intracellular ROS levels at E8.5. Vitamin E supplementation could partially recover these phenomena. Collectively, these results suggest that AGE-BSA could induce NTDs in the absence of hyperglycemia by an underlying mechanism that is at least partially associated with its capacity to increase embryonic oxidative stress levels.

关键词： nerve regeneration neural tube defects advanced glycation end products diabetic embryopathy oxidative stress N-(carboxymethyl)lysine malondiadehyde N(ε)-(carboxyethyl) lysine embryo H2O2 bovine serum albumin neural regeneration

De novo assembly of white poplar genome and genetic diversity of white poplar population in Irtysh River basin in China

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Science China(Life Sciences) 2019年第5期62卷 609-618页

作者： yan-Jing Liu xiao-ru Wang Qing-Yin Zeng State Key Laboratory of Tree Genetics and Breeding Chinese Academy of Forestry State Key Laboratory of Systematic and Evolutionary Botany Institute of BotanyChinese Academy of Sciences Department of Ecology and Environmental Science UPSCUmea University

The white poplar(Populus alba) is widely distributed in Central Asia and Europe. There are natural populations of white poplar in Irtysh River basin in China. It also can be cultivated and grown well in northern China. In this study, we sequenced the genome of P. alba by single-molecule real-time technology. De novo assembly of P. alba had a genome size of 415.99 Mb with a contig N50 of 1.18 Mb. A total of 32,963 protein-coding genes were identified. 45.16% of the genome was annotated as repetitive elements. Genome evolution analysis revealed that divergence between P. alba and Populus trichocarpa(black cottonwood)occurred ～5.0 Mya(3.0, 7.1). Fourfold synonymous third-codon transversion(4 DTV) and synonymous substitution rate(ks)distributions supported the occurrence of the salicoid WGD event(～ 65 Mya). Twelve natural populations of P. alba in the Irtysh River basin in China were sequenced to explore the genetic diversity. Average pooled heterozygosity value of P. alba populations was 0.170±0.014, which was lower than that in Italy(0.271±0.051) and Hungary(0.264±0.054). Tajima's D values showed a negative distribution, which might signify an excess of low frequency polymorphisms and a bottleneck with later expansion of *** populations examined.

关键词： Populus alba de novo assembly genetic diversity population expansion

Effect of Ti contents on interfacial bonding,mechanical and thermal properties of Mo-Cu composites

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Tungsten 2024年第3期6卷 549-554页

作者： Jian-ru Chu xiao-Song Jiang Tian-yan Liu Key Laboratory of Advanced Technologies of Materials Ministry of EducationChengdu 610031China School of Materials Science and Engineering Southwest Jiaotong UniversityChengdu 610031China Reactor Engineering Research Sub-Institute Nuclear Power Institute of ChinaChengdu 610005China

Mo-Cu composites are widely used in electronic packaging,vacuum technology,microwave devices and other fields due to their excellent properties,such as excellent electrical and thermal conductivity,low adjustable coef... 详细信息

关键词： composites thermal properties

Osmotic Regulation of Betaine Content in Leymus chinensis Under Saline-alkali Stress and Cloning and Expression of Betaine Aldehyde Dehydrogenase(BADH) Gene

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Chemical Research in Chinese Universities 2008年第2期24卷 204-209页

作者： CUI xi-yan WANG Yong GUO Ji-xun Key Laboratory for Vegetation Ecology of Ministry of Education Institute of Grassland Science Northeast Normal University Changchun 130024 P. R. China School of Life Sciences Jilin Agricultural University Changchun 130118 P. R. China

The potted Leymus chinensis seedlings were treated with saline-alkali solution of six different（from Ⅰ to Ⅵ） concentrations. The results demonstrate that the betaine content and Betaine-aldehyde dehydrogenase（BADH： EC 1.***.1.8） activities have a direct relation with increased stressing time in the same treatment; both exhibit a single peak with increasing the concentration of saline-alkali solution, and number V shows the highest value. The BADH gene of Leyrnus chinensis was cloned by RT-PCR and RACE technology and was designated as LcBADH. The cDNA sequence of LcBADH was 1774bp including the open reading frame（ORF） of 1521bp（coding 506 amino acids）. The vector of prokaryotic expression was constructed by inserting the LcBADH gene fragmcnt into pET30a（＋） and transformed into E. coli BL21（DE3）. The result of SDS-PAGE shows that the idio-protein with a molecular mass of 56.78 kDa was effectively expressed in the recombinant bacteria induced by isopropyl fl-D-thiogalactoside（IPTG）.

关键词： Leymus chinensis Saline-alkali stress BADH RACE Cloning and expression

Impact Analysis of Solar Irradiance Change on Precision Orbit Determination of Navigation Satellites

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Transactions of Nanjing University of Aeronautics and Astronautics 2019年第6期36卷 889-901页

作者： ZHANG yan WANG xiaoya xi Kewei SHAO Fan Astro-Geodynamics Research Center Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030P.R.China University of Chinese Academy of Sciences Beijing 100049P.R.China Shanghai Key Laboratory of Space Navigation and Positioning Techniques Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030P.R.China

Solar radiation pressure is the main driving force and error source for precision orbit determination of navigation *** is proportional to the solar irradiance,which is the"sun constant".In regular calculation,the"solar constant"is regard as a ***,due to the existence of sunspots,flares,etc.,the solar constant is not fixed,the change in the year is about 1%.To investigate the variation of solar irradiance,we use interpolation and average segment modeling of total solar irradiance data of SORCE,establishing variance solar radiation pressure(VARSRP)model and average solar radiation pressure(AVESRP)model based on the built solar pressure model(SRPM)(constant model).According to observation data of global positioning system(GPS)and Beidou system(BDS)in 2015 and comparing the solar pressure acceleration of VARSRP,AVESRP and SRPM,the magnitude of change can reach 10-10 m/s^*** addition,according to the satellite precise orbit determination,for GPS satellites,the results of VARSRP and AVESRP are slightly smaller than those of the SRPM model,and the improvement is between 0.1 to 0.5 *** geosynchronous orbit(GEO)satellites of BDS,The AVESRP and VARSRP have an improvement of 3.5 mm and 4.0 mm,respectively,based on overlapping arc,and SLR check results show the AVESRP model and the VARSRP model is improved by 2.3 mm and 3.5 mm,***,the change of inclined geosynchronous orbit(IGSO)satellites and medium earth orbit(MEO)satellites is relatively small,and the improvement is smaller than 0.5 mm.

关键词： solar pressure acceleration total solar irradiance precise orbit determination global positioning system(GPS) Beidou system(BDS)

The NAC transcription factor ONAC083 negatively regulates rice immunity against Magnaporthe oryzae by directly activating transcription of the RING-H2 gene OsRFPH2-6

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Journal of Integrative Plant Biology 2023年第3期65卷 854-875页

作者： yan Bi Hui Wang xi Yuan Yuqing yan Dayong Li Fengming Song National Key Laboratory for Rice Biology Institute of BiotechnologyZhejiang UniversityHangzhou 310058China College of Chemistry and Life Sciences Zhejiang Normal UniversityJinhua 321004China

NAC transcription factors(TFs) play critical roles in plant immunity by modulating the expression of downstream genes via binding to specific cis-elements in promoters. Here, we report the function and regulatory network of a pathogenand defense phytohormone-inducible NAC TF gene, ONAC083, in rice(Oryza sativa) ***083 localizes to the nucleus and exhibits transcriptional activation activity that depends on its C-terminal region. Knockout of ONAC083enhances rice immunity against Magnaporthe oryzae, strengthening pathogen-induced defense responses, and boosting chitin-induced pattern-triggered immunity(PTI), whereas ONAC083 overexpression has opposite effects. We identified ONAC083-binding sites in the promoters of 82genes, and showed that ONAC083 specifically binds to a conserved element with the core sequence ACGCAA. ONAC083 activated the transcription of the genes OsRFPH2-6, OsTrx1, and OsPUP4 by directly binding to the ACGCAA element. OsRFPH2-6, encoding a RING-H2 protein with an N-terminal transmembrane region and a C-terminal typical RING domain, negatively regulated rice immunity against M. oryzae and chitin-triggered PTI. These data demonstrate that ONAC083 negatively contributes to rice immunity against M. oryzae by directly activating the transcription of OsRFPH2-6 through the ACGCAA element in its promoter. Overall, our study provides new insight into the molecular regulatory network of NAC TFs in rice immunity.

关键词： ACGCAA element immunity Magnaporthe oryzae ONAC083 OsRFPH2-6 rice

Some optimizations on detecting gravitational wave using convolutional neural network

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Frontiers of physics 2020年第5期15卷 65-75页

作者： xiang-ru Li Wo-Liang Yu xi-Long Fan G.Jogesh Babu School of Computer Science South China Normal UniversityGuangzhou 510631China School of Mathematical Sciences South China Normal UniversityGuangzhou 510631China School of Physics and Technology Wuhan UniversityWuhan 430072China Pennsylvania State University University ParkPA 16802USA

This work investigates the problem of detecting gravitational wave(GW)events based on simulated damped sinusoid signals contaminated with white Gaussian *** is treated as a classifcation problem with one class for the interesting *** proposed scheme consists of the following two successive steps:decomposing the data using a wavelet packet,representing the GW signal and noise using the derived decomposition clficients;and determining the existence of any GW event using a convolutional neural network(CNN)with a logistic regression output *** characteristic of this work is its comprehensive investigations on CNN structure,detection window width,data resolution,wavelet packet decomposition and detection window overlap *** simulat ion experiments show excellent performances for reliable detection of signals with a range of GW model parameters and signal-to-noise *** we use a simple waveform model in this study,we expect the method to be particularly valuable when the potential GW shapes are too complex to be charncterized with a termplate bank.

关键词： gravitational waves algorithms astrostatistics techniques

Development and validation of a novel non-invasive test for diagnosing nonalcoholic fatty liver disease in Chinese children

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World Journal of Pediatrics 2024年第4期20卷 413-421页

作者： Zhe-Wen Qin Qian-Nan Ren Hong-xi Zhang Ya-ru Liu Ke Huang Wei Wu Guan-Ping Dong yan Ni Jun-Fen Fu Division of Endocrinology National Clinical Research Center for Child HealthNational Children’s Regional Medical CenterThe Children’s HospitalDepartment of EndocrinologyNational Clinical Research Center for Child HealthNational Children’s Regional Medical CenterThe Children’s HospitalZhejiang University School of MedicineHangzhou310052China

With the exploding prevalence of obesity,many children are at risk of developing nonalcoholic fatty liver *** anthropometric and laboratory parameters,our study aimed to develop a model to quantitatively evaluate liver fat content(LFC)in children with *** A well-characterized cohort of 181 children between 5 and 16 years of age were recruited to the study in the Endocrinology Department as the derivation *** external validation cohort comprised 77 *** assessment of liver fat content was performed using proton magnetic resonance *** and laboratory metrics were measured in all subjects.B-ultrasound examination was carried out in the external validation *** Kruskal-Wallis test,Spearman bivariate correlation analyses,univariable linear regressions and multivariable linear regression were used to build the optimal predictive *** The model was based on indicators including alanine aminotransferase,homeostasis model assessment of insulin resistance,triglycerides,waist circumference and Tanner *** adjusted R^(2)of the model was 0.589,which presented high sensitivity and specificity both in internal[sensitivity of 0.824,specificity of 0.900,area under curve(AUC)of 0.900 with a 95%confidence interval:0.783–1.000]and external validation(sensitivity of 0.918 and specificity of 0.821,AUC of 0.901 with a 95%confidence interval:0.818–0.984).Conclusions Our model based on five clinical indicators was simple,non-invasive,and inexpensive;it had high sensitivity and specificity in predicting LFC in ***,it may be useful for identifying children with obesity who are at risk for developing nonalcoholic fatty liver disease.

关键词： Biochemical markers Children Magnetic resonance spectroscopy Nonalcoholic fatty liver disease Pediatric obesity