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Effect of acupuncture at different meridian acupoints on changes of related factors for rabbit gastric mucosal injury

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World Journal of Gastroenterology 2005年第41期11卷 6472-6476页

作者： Jie Yan Ren-Da Yang Jun-Feng He shou-xiang Yi Xiao-Rong Chang Ya-ping Lin Department of Acupuncture and Moxibustion Hunan College of Traditional Chinese MedicineChangsha 410007 Hunan Province China

AIM： To explore the regularity of multi-meridians controlling a same viscus （MMCSV）. METHODS： The rabbit gastric ulcer model was established by ethanol intragastric instillation. Fifty-six rabbits were randomly divided into normal group, model group （MG）, model plus acupuncture at Foot Yangming Meridian group （YMG）, model plus acupuncture at Foot Taiyin Meridian group （TYG）, model plus acupuncture at Foot Shaoyang Meridian group （SYG）, model plus acupuncture at Foot Jueyin Meridian group （JYG）, model plus acupuncture at Foot Taiyang Meridian group （TYMG）, with eight rabbits in each group. Gastric mucosal nitric oxide （NO） and nitric oxide synthase （NOS） were assayed by the nitric acid reductase method, and prostaglandin E2 （PGE2） and epidermal growth factor （EGF） were measured by radioimmunoassay. The comprehensive effects were analyzed by weighing method. RESULTS： Compared to MG, SYG, JYG and TYMG, the rabbits gastric mucosal injury index （GMII） reduced very significantly in YMG （P〈0.01）. Compared to MG, the GMII also reduced significantly in TYG （P〈0.05）. NO, NOS, PGE2 and EGF increased very significantly in YMG （P〈0.01）. The EGF in YMG also increased significantly than that in TYG compared to those in MG, SYG, JYG and TYMG （P〈0.05）. The PGE2 and EGF also increased very significantly in TYG than those in MG, JYG and TYMG （P〈0.01）. While compared to SYG, the NOS increased significantly in TYG （P〈0.05）. NOS was the highest in YMG （P〈0.01）, and was higher in TYG than in MG （P〈0.01）. CONCLUSION： MMCSV is common. The Foot Yangming Meridian is most closely related to the stomach, followed by Foot Taiyin Meridian, Foot Shaoyang Meridian and Foot Jueyin Meridian. Foot Taiyang Meridian has no correlation with the stomach.

关键词： Relationship between Meridian and Viscus Gastric mucosal injury/acupuncture effects MMCSV

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On extra neutral and charged Higgs bosons at the LHC

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Chinese Science Bulletin 2014年第29期59卷 3729-3737页

作者： Xiao-ping Wang shou-Hua Zhu Institute of Theoretical Physics and State Key Laboratory of Nuclear Physics and Technology Peking University Center for High Energy Physics Peking University Collaborative Innovation Center of Quantum Matter

The properties of 125 GeV new particle,which was discovered in 2012 at the Large Hadron Collider(LHC),are found to be consistent with those of the Higgs boson in the standard model(SM).Hereafter the new particle is dubbed as SM-like Higgs *** there is still spacious room for physics beyond the SM(BSM)due to the limited energy and luminosity of the *** more data,experiments will scrutinize whether the new particle is indeed the SM one or *** the same time,one believes that discovery of the SMlike Higgs boson is just the start of the new era of particle *** predominant topic is whether there are other new Higgs bosons as speculated in various BSM *** this short review,we will describe the current status of Higgs physics at the LHC and several BSM models which contain more Higgs *** literatures,there are numerous studies on extended Higgs sector and a comprehensive review is beyond the scope of this ***,we will present two latest studies on Higgs physics:(1)how to detect the charged Higgs boson and measure tan b after including the top polarization information,and(2)how to discover the extra neutral Higgs boson via the pair production of SM-like Higgs boson.

关键词：希格斯玻色子 LHC 中性粒子物理学大型强子对撞机标准模型 BSM 新粒子

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Tensile ductility improvement of AlSi9Cu1 alloy by chemical composition optimization

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China Foundry 2017年第2期14卷 80-84页

作者： Bing-rong Zhang Jian-xiang Liu shou-yin Zhang Song-li Zhang Xin-ping Hu School of Mechanical and Automotive Engineering Qilu University of Technology Jinan 250353 China Light Alloy Processing Science and Defense Technology Key Laboratory Nanchang Hangkong University Nanchang 330063 China School of Materials Science and Engineering Jiangsu University Zhenjiang 212013 Jiangsu China Shandong Tailai Aluminum Foundry Tech. Co. Ltd. Laiwu 270100 Shandong China

Diesel engines, characterized by higher breakout pressure and compression ratio in comparison with gasoline engines, require particularly elevated tensile properties for their engine parts. In order to maintain both high strength and high ductility in the cylinder head, i.e., to obtain higher percent elongation without further reducing the tensile strength, Al Si9Cu1 alloy was used to prepare the cylinder head in an aluminum diesel engine. At the same time, the effect of different modification elements, Na or Sr, and Fe content on the reduction of secondary dendrite arm spacing(SDAS) was discussed, and the design of T7 heat treatment parameters were analyzed in order to improve the tensile ductility. The result shows:(1) The SDAS is as small as 18±3 μm for the Sr modified alloy.(2) The percent elongation of the alloy with Sr modification increases by 66.7% and 42.9%, respectively, compared with the unmodified alloy and the alloy with Na modification.(3) Lower Fe content alloy(0.10%) gives good results in percent elongation compared to the alloy with higher Fe content(0.27%); in particular, after Sr modification and T7 heat treatment, the elongation of over 5% is obtained.

关键词： diesel engine cylinder head high temperature tensile properties aluminum alloys modification combination of strength and ductility

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Investigation of Aegilops umbellulata for stripe rust resistance,heading date,and the contents of iron,zinc,and gluten protein

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Journal of Integrative Agriculture 2023年第4期22卷 1258-1265页

作者： SONG Zhong-ping ZUO Yuan-yuan xiang Qin LI Wen-jia LI Jian LIU Gang DAI shou-fen YAN Ze-hong State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Chengdu 611130P.R.China Triticeae Research Institute Sichuan Agricultural UniversityChengdu 611130P.R.China

Aegilops umbellulata(UU)is a wheat wild relative that has potential use in the genetic improvement of *** this study,46 *** accessions were investigated for stripe rust resistance,heading date(HD),and the contents of iron(Fe),zinc(Zn),and seed gluten ***-two of the accessions were classified as resistant to stripe rust,while the other four accessions were classified as susceptible to stripe rust in four *** average HD of *** was significantly longer than that of three common wheat cultivars(180.9 d vs.137.0 d),with the exception of PI226500(138.9 d).The *** accessions also showed high variability in Fe(69.74-348.09 mg kg^(-1))and Zn(49.83-101.65 mg kg^(-1))*** accessions(viz.,PI542362,PI542363,and PI554399)showed relatively higher Fe(230.96-348.09 mg kg^(-1))and Zn(92.46-101.65 mg kg^(-1))contents than the *** Fe content of *** was similar to those of *** and *** but higher than those of *** and common *** umbellulata showed a higher Zn content than ***,***,and common wheat,but a lower content than ***,*** had the highest proportion of γ-gliadin among all the species investigated(*** *** species=mean 72.11%vs.49.37%;range:55.33-86.99%vs.29.60-67.91%).These results demonstrated that *** exhibits great diversity in the investigated traits,so it can provide a potential gene pool for the genetic improvement of these traits in wheat.

关键词： Aegilops umbellulata stripe rust resistance heading date Fe and Zn gluten proteins genetic variation

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MOTION OF TRACER PARTICLES IN A CENTRIFUGAL PUMP AND ITS TRACKING CHARACTERISTICS

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Journal of Hydrodynamics 2012年第5期24卷 785-793页

作者： LI Ya-lin YUAN shou-qi TANG Yue YUAN Jian-ping Research Center of Fluid Machinery Engineering and Technology Jiangsu University Zhenjiang 212013 China

The Basset-Boussinesq-Oseen （BBO） equation can be used for most flows to trace the motion of a particle, but in a centrifugal pump, among the forces that act on the particles, one should also include those due to the impeller rotation, as additional effects. This paper firstly reviews various approximations of the BBO equation for the motion of dispersion particles in a viscous fluid. Then based on the motion equation for particles in low Reynolds number centrifugal pumps, a formula for calculating the tracking characteristics of tracer particles is deduced through the Fourier integral transformation. After that the deviations of the particle motion from the fluid motion, as predicted by the various approximations, are discussed and compared. At last, with an emphasis on the Particle Image Velocimetry （PIV） results, the tracking characteristics of particles are estimated. Also, advantages and disadvantages of different tracer particles are discussed and suitable tracer particles for application in PIV studies for flow fields in centrifugal pumps are suggested.

关键词： tracer particles equations of motion tracking characteristics centrifugal pump Particle Image Velocimetry (PIV)

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Improved positioning algorithm based on two step least square in NLOS environments

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The Journal of China Universities of Posts and Telecommunications 2011年第5期18卷 58-63页

作者： WU Shi-xun LI Ji-ping-yin LIU shou Department of Electronics and Communication Engineering Central China Normal University Wuhan 430079 China

Non-line-of-sight （NLOS） propagation is a major source of error for accurate time-of-arrival （TOA） location estimation. The two-step least square （LS） method, which does not need any information about the distribution of the NLOS error, has been studied in related researches to provide efficient location estimation of the mobile terminal （MT）. By observing the estimation of the error covariance matrix in the two-step LS method, this paper finds that the measured distances are more suitable than the initial estimated distances by maximum likelihood （ML） algorithm in NLOS environments. Moreover, by making use of the geometry relations among fixed terminals （FTs）, some measured distances which are corrupted by big NLOS errors may be reduced. Further, an iteration method can be adopted to further improve the performance of the algorithm. Accordingly, an improved algorithm based on the two-step LS method is proposed. Simulation results demonstrate that the improved algorithm has better performance than the two-step LS method and converges more quickly. Meanwhile, it is robust in different NLOS environments.

关键词： NLOS propagation TOA least square position algorithm maximum likelihood

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Enhancement of NH_4^+ Uptake by NO_3^- in Relation to Expression of Nitrate-Induced Genes in Rice (Oryza sativa) Roots

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Pedosphere 2008年第1期18卷 86-91页

作者： ZHAO Xue-Qiang ZHAO shou-ping SHI Wei-Ming State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 （China） Graduate School of the Chinese Academy of Sciences Beijing 100049 （China）

This study aimed to survey the expression of genes involved in rice N uptake and aasimilatory network and to understand the potential molecular mechanisms responsible for the NO3^-enhanced NH4^＋ uptake. By using quantitative real-time polymerase chain reaction （PCR）, the genes related to N nutrition, including ammonium transporters （AMTs） and ammonium assimilatory enzymes （GS and GOGAT）, were transcriptionally analyzed in rice plants grown in the absence and presence of NO4^- in the NH4^＋-containing medium. The results showed that NH4^＋ uptake by rice was enhanced by the NO3^- supply to the medium. At the same time and in parallel, the amount of transcripts of seven genes （OsAMT1;1, OsAMT1;2, OsAMT4;1, OsGLNP, OsGLU1, OsGLT1, and OsGLTP） was increased in rice roots, but the expression of two genes （OsGLN1;1 and OsGLN1;P） was decreased and that of OsAMT1;3 remained without change. Up- or downregulation of these genes involved in NH4^＋ uptake and assimilation correlated with the increase in NH4^＋ uptake in the presence of NO3^- in rice roots.

关键词： ammonium gene expression nitrate quantitative real-time PCR rice roots

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Protruding Structure Buried in Radio Map by Wavelet

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Chinese Physics Letters 2000年第5期17卷 388-389页

作者： CHEN Pu-Chun ZHANG Xi-Zhen xiang shou-ping FENG Long-Long W.Reich Astrophysical Center University of Science and Technology of ChinaHefei 230026 National Astronomical Observatories Beijing Astronomical Observatory Chinese Academy of SciencesBeijing 100012 Department of Industrial Automation Southwest Petroleum InstituteNanchong 637001 Max-Planck-Institute fur Radioastronomie Auf dem Hugel 6953121 BonnGermany

An efficient method to identify supernova remnants is provided,in order to iron out the great gap between the predicted number and the *** make an attempt to apply D4 wavelet to detect the useful structures buried in ... 详细信息

关键词： buried noise apply

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Empirical Likelihood for Mixed-effects Error-in-variables Model

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Acta Mathematicae Applicatae Sinica 2009年第4期25卷 561-578页

作者： Qiu-hua Chen ping-shou Zhong Heng-jian Cui Mathematical & Physical Science School North China Electric Power University Beijing 102206 China Department of Statistics and Financial Mathematics Beijing Normal University Beijing 100875 China

This paper mainly introduces the method of empirical likelihood and its applications on two different models. We discuss the empirical likelihood inference on fixed-effect parameter in mixed-effects model with error-in-variables. We first consider a linear mixed-effects model with measurement errors in both fixed and random effects. We construct the empirical likelihood confidence regions for the fixed-effects parameters and the mean parameters of random-effects. The limiting distribution of the empirical log likelihood ratio at the true parameter is X2p＋q, where p, q are dimension of fixed and random effects respectively. Then we discuss empirical likelihood inference in a semi-linear error-in-variable mixed-effects model. Under certain conditions, it is shown that the empirical log likelihood ratio at the true parameter also converges to X2p＋q. Simulations illustrate that the proposed confidence region has a coverage probability more closer to the nominal level than normal approximation based confidence region.

关键词： Confidence region empirical likelihood mixed-effects model

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Improved biopsy accuracy in Barrett's esophagus with a transparent cap

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World Journal of Gastroenterology 2014年第16期20卷 4718-4722页

作者： Bai-Li Chen xiang-Bin Xing Jin-Hui Wang Ting Feng Li-shou Xiong Jin-ping Wang Yi Cui Department of Gastroenterology the First Affiliated Hospital of Sun Yat-Sen University

AIM: To evaluate the efficacy of endoscopy with a transparent cap on biopsy positioning in Barrett’s esophagus (BE).

关键词： Barrett’ s esophagus, Endoscopy, Transparent cap, Biopsy

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