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28篇 您的检索式:作者名="Wang Liangbi"
    题名 作者 年代 出处 被引量
1Expression Analysis of miRNAs and Highly-expressed Small RNAs in Two Rice Subspecies and their Reciprocal Hybrids显示文摘Heterosis,or hybrid vigor,is the phenomenon whereby progeny of two inbred lines exhibit superior agronomic performance compared with either parent.We analyzed the expression of miRNAs and highly expressed small RNAs (defined according to Solexa sequencing results) in two rice (Oryza sativa) subspecies (japonica cv.Nipponbare and indica cv.93-11) and their reciprocal hybrids using microarrays.We found that of all the 1141 small RNAs tested,140 (12%,140 of 1141) and 157 (13%,157 of 1141) were identified being significantly differentially expressed in two reciprocal hybrids,respectively.All possible modes of action,including additive,high-and low-parent,above high-and below low-parent modes were exhibited.Both F1 hybrids showed non-additive expression patterns,with downregulation predominating.Interestingly,15 miRNAs displayed stark opposite expression trends relative to midparent in reciprocal hybrids.Computational prediction of targets of differentially expressed miRNAs showed that they participated in multifaceted developmental pathways,and were not distinguishable from the targets of non-differentially expressed miRNAs.Together,our findings reveal that small RNAs play roles in heterosis and add a new layer in the understanding and exploitation of molecular mechanisms of heterosis.Fangfang Chen Guangming He Hang He Wei Chen Xiaopeng Zhu Manzhong Liang Liangbi Chen Xing Wang Deng 2010Journal of Integrative Plant Biology2010,52,11:10
2Generation of 33 fs pulses directly from a Kerr-lens mode-locked Yb:CaYAlO4 laser显示文摘We experimentally demonstrated a diode-pumped Kerr-lens mode-locked femtosecond laser with a Yb:CaYAlO4 crystal as the gain medium. Pulse duration as short as 33 fs was obtained directly from the oscillator at a repetition rate of 115 MHz. The central wavelength was at 1059 nm with a spectral bandwidth of 49 nm. These are, to the bestof our knowledge, the shortest pulses generated from a Yb:CaYAlO4 oscillator.Ziye Gao Jiangfeng Zhu Junli Wang Zhiyi Wei Xiaodong Xu Lihe Zheng Liangbi Su Jun Xu 2015Photonics Research2015,3,6:8
3Biomechanical comparison of interspinous distraction device and facet screw fixation system on the motion of lumbar spine: a finite element analysis显示文摘Wang Hongwei Wang Xiaohong Chen Wenchuan Zhao Fuqiang Xiang Liangbi Zhou Yue Cheng Chengkung 2014Chinese Medical Journal2014,,11:5
4Meta analysis of olfactory ensheathing cell transplantation promoting functional recovery of motor nerves in rats with complete spinal cord transection显示文摘OBJECTIVE:To evaluate the effects of olfactory ensheathing cell transplantation on functional recovery of rats with complete spinal cord transection.DATA SOURCES: A computer-based online search of Medline(1989–2013),Embase(1989–2013),Cochrane library(1989–2013),Chinese Biomedical Literature Database(1989–2013),China National Knowledge Infrastructure(1989–2013),VIP(1989–2013),Wanfang databases(1989–2013) and Chinese Clinical Trial Register was conducted to collect randomized controlled trial data regarding olfactory ensheathing cell transplantation for the treatment of complete spinal cord transection in rats.SELECTION CRITERIA: Randomized controlled trials investigating olfactory ensheathing cell transplantation and other transplantation methods for promoting neurological functional recovery of rats with complete spinal cord transection were included in the analysis.Meta analysis was conducted using Rev Man 4.2.2 software.MAIN OUTCOME MEASURES: Basso,Beattie and Bresnahan scores of rats with complete spinal cord transection were evaluated in this study.RESULTS: Six randomized controlled trials with high quality methodology were included.Meta analysis showed that Basso,Beattie and Bresnahan scores were significantly higher in the olfactory ensheathing cell transplantation group compared with the control group(WMD = 3.16,95% CI(1.68,4.65); P < 0.00001).CONCLUSION: Experimental studies have shown that olfactory ensheathing cell transplantation can promote the functional recovery of motor nerves in rats with complete spinal cord transection.Jun Liu Ping Chen Qi Wang Yu Chen Hailong Yu Junxiong Ma Mingming Guo Meihui Piao Weijian Ren Liangbi Xiang 2014Neural Regeneration Research2014,9,20:4
5Ectopic expression of fungal EcGDH improves nitrogen assimilation and grain yield in rice显示文摘NADP(H)-dependent glutamate dehydrogenases(GDH) in lower organisms have stronger ammonium affinity than those in higher plants. Here we report that transgenic rice overexpressing the EcGDH from Eurotium cheralieri exhibited significantly enhanced aminating activities. Hydroponic and field tests showed that nitrogen assimilation efficiency and grain yields were markedly increased in these transgenic plants, especially at the low nitrogen conditions.These results suggest that EcGDH may have potential to be used to improve nitrogen assimilation and grain yield in rice.Dongying Tang Yuchong Peng Jianzhong Lin Changqing Du Yuanzhu Yang Dan Wang Cong Liu Lu Yan Xiaoying Zhao Xia Li Liangbi Chen Xuanming Liu 2018Journal of Integrative Plant Biology2018,60,2:4
6Numerical Study of the Intensity Correlation between Secondary Flow and Heat Transfer of Circle Tube-Finned Heat Exchanger with Vortex Generators显示文摘The application of vortex generators in tube-finned heat exchangers is very universal.The vortex generators can generate secondary flow,and as we all know secondary flow can obviously strengthen heat transfer.To use vortex generators much more efficiently in the circle tube-finned heat exchangers,the intensity correlation study between secondary flow and heat transfer is needed.22 different structures of circle tube-finned heat exchangers were numerically studied,including the plain fin cases and the cases with vortex generators.In addition,the influence of fin spacing,transverse and longitudinal tube pitch,heights and attack angle of vortex generators,positions of vortex generators and shape of vortex generators on heat transfer and fluid flow are studied,too.The non-dimensional parameter Se is applied to quantify the secondary flow intensity.The results show that Se can describe the secondary flow intensity very well.There is very close corresponding relationship between overall averaged Nu and volumetrically averaged Se for all the researched cases and the relational expression is obtained.However,there is no one-to-one correlation not only between Re and f but also between volumetrically averaged Se and f for all the studied cases.Yong Guan Wanling Hu Yun Zhang Kewei Song Liangbi Wang 2020Computer Modeling in Engineering & Sciences2020,,4:3
7Positional distribution of fatty acids on the glycerol backbone during the biosyn-thesis of glycerolipids in Ectocarpus fasciculatus显示文摘The biosynthesis of glycolipids in E.fascicula-tus was studied by 14C label and chase. The fatty acids in sulphoquinovosyl diacylglycerol (SQDG) were almost 16-car-bon and 18-carbon ones. In addition to the two fatty acids, monogalactosyl diacylglycerol (MGDG) and digalactosyl diacylglycerol (DGDG) contained 8.5 mol% and 31.0 mol% of eicosapentaenoic acid (20 : 5), respectively, and this fatty acid was usually distributed in the sn-1 position of the glyc-erol backbone. When plants were incubated with [2-14C] acetate, differences existed in the positional distribution of the labeled fatty acids in sn-1 and sn-2 among the three glycerolipids. In SQDG, 14C-labeled fatty acids were distributed uniformly in the sn-1 and sn-2 positions. In DGDG, 14C-labeled fatty acids were mainly distributed in the sn-2 position. In MGDG, the radioactivity of fatty acids in sn-1 position was far greater than that in sn-2 position after a 30 min pulse label, and the difference in radioactivity between the two positionsXU Yinong WANG Zeneng VAN Xiaojun LIN Wei LI Liangbi KUANG Tingyun 2002Chinese Science Bulletin2002,47,21:3
8Residual stress relaxation in typical weld joints and its effect on fatigue and crack growth显示文摘Many factors influence the fatigue and crack growth behavior of welded joints. Some structures often undergo fairly large static loading before they enter service or variable amplitude cyclic loading when they are in service. The combined effect of both applied stress and high initial residual stress is expected to cause the residual stresses relaxation. Only a few papers seem to deal with appropriate procedures for fatigue analysis and crack growth by considering the combined effect of variable amplitude cyclic loading with residual stresses relaxation. In this article, some typical welded connections in ship-shaped structures are investigated with 3-D elastic-plastic finite element analysis. The effect of residual stress relaxation, initial residual stress, and the applied load after variable amplitude cyclic loading is revealed, and a formula for predicting the residual stress at hot spot quantitatively is proposed. Based on the formula, an improved fatigue procedure is introduced. Moreover, crack growth of typical weld joints considering residual stresses relaxation is studied.Liangbi LI Zhengquan WAN Zili WANG Chunyan JI 2009Acta Metallurgica Sinica(English Letters)2009,22,3:3
9Optical and scintillation properties of Ce:Y_(3)Al_(5)O_(12) single crystal fibers grown by laser heated pedestal growth method显示文摘The single crystal scintillating optical fibers acting as the scintillators and light conductors show potential application in scintillating fiber array detectors with high spatial resolution.In this paper we report the growth of 0.2 at%Ce:Y_(3)Al_(5)O_(12) single crystal fiber.The crystalline phase,surface morphology of the axialsection and cro ss-section,optical and scintillation properties of the as-grown fiber were investigated.The Ce:Y_(3)Al_(5)O_(12) single crystal fiber has a pure YAG phase,a uniform distribution of cerium in the axialsection and cross-section surface.Emission spectrum is composed of broad bands ranging from 440 to700 nm.In addition,the single crystal fiber has a high light yield of 26115±2000 photons/MeV,low energy resolution of 9.44%@662 keV and decay time of a fast component of 78 ns and a slow component of 301 ns.The intensity ratio of fast to slow components is roughly 8:1.Xibin Wang Yun Dai Zhonghan Zhang Liangbi Su Huamin Kou Yangxiao Wang Anhua Wu 2021Journal of Rare Earths2021,39,12:2
10Natural variation of H3K27me3 modification in two Arabidopsis accessions and their hybrid显示文摘Histone modifications affect gene expression, but hthe mechanism and biological consequence of natural variation igin histone modifications remain unclear. Here, we generated Hgenome-wide integrated maps of H3K27me3 modification and transcriptome for Col, C24 and their F1 hybrid. A total of 1,828 genomic regions showing variation in H3K27me3 modification between Col and C24 were identified, most of which were associated with genic regions. Natural variation of H3K27me3 modification between parents could result in allelic bias of H3K27me3 in hybrids. Furthermore, we found that H3K27me3 variation between Col and C24 was negatively correlated with gene expression differences between two accessions, especially with those arising from the cis-effect. Importantly,mutation of CLF, an Arabidopsis methyltransferase for H3K27,altered gene expression patterns between the parents.Together, these data provide insights into natural variation of histone modifications and their association with gene expression differences between Arabidopsis ecotypes.Mei Yang Xuncheng Wang Hao Huang Diqiu Ren Yan'e Su Pan Zhu Danmeng Zhu Liumin Fan Liangbi Chen Guangming He Xing Wang Deng 2016Journal of Integrative Plant Biology2016,58,5:2
11Numerical Study of Heat Transfer Enhancement of Finned Flat Tube Bank Fin With Vortex Generators Mounted on Both Surfaces of the Fin 显示文摘SONG Kewei WANG Liangbi FAN Jufang 2008Heat and Mass Transfer2008,44,:1
12Comparisons of Local Experimental Results With Numerical Results of Heat Transfer Enhancement of a Flat Tube Bank Fin With Vortex Generators 显示文摘CHEN Yuying SONG Kewei WANG Liangbi 2009Numercal Heat Transfer A2009,55,:1
13Tranexamic acid reduces postoperative blood loss of degenerative lumbar instability with stenosis in posterior approach lumbar surgery: a randomized controlled trial显示文摘Qi Wang Jun Liu Rong Fan Yu Chen Hailong Yu Yan Bi Zhengzhe Hua Meihui Piao Mingming Guo Weijian Ren Liangbi Xiang 2013European Spine Journal2013,,9:1
14The optimal fin spacing for three-row flat tube bank fin mounted with vortex generators显示文摘Shi Baizhan Wang Liangbi Gen Feng 2006Heat Mass Transfer2006,43,:1
15A non-opioid pathway for dynorphin-caused spinal cord injury in rats显示文摘Intrathecal injection of dynorphin into rats via subarachnoid catheter induces damage to spinal cord tissue and motor function. Injection of the kappa opioid receptor antagonist nor-binaltorphine, or the excitatory amino acid N-methyl-D-aspartate receptor antagonist MK-801 into rats alleviated the pathological changes of dynorphin-caused spinal cord tissue injury and reduced the acid phosphatase activity in the spinal cord. The experimental findings indicate that there are opioid and non-opioid pathways for dynorphin-induced spinal cord injury, and that the non-opioid receptor pathway may be mediated by the excitatory amino acid N-methyl-D-aspartate receptor.Yu Chen Liangbi Xiang Jun Liu Dapeng Zhou Hailong Yu Qi Wang Wenfeng Han Mingming Guo 2012Neural Regeneration Research2012,7,11:1
16Depletion of phosphatidyl-glycerol head-group induces changes in oxygen evolution and protein secondary structures of photosystem Ⅱ显示文摘The techniques of oxygen electrode polarogra-phy and Fourier transform infrared (FT-IR) spectroscopy were employed to explore the roles of polar head-group of phosphatidylglycerol (PG) molecules in the functional and structural aspects of photosystem Ⅱ (PS Ⅱ) through enzymatic approach. It was shown that the depletion of PG by treatment of phospholipase C (PLC) on PS Ⅱ particles caused the inhibition of oxygen evolving activity in PS Ⅱ. This effect also gave rise to changes in the protein secondary structures of PS Ⅱ, that is, an increase in a-helical conformation which is compensated by the loss of p-strand structures. It revealed that the head-group of PG molecules plays an important structural role in the maintenance of normal structure of PS Ⅱ proteins, which is required to maintain the appropriate physiological activity of the PS Ⅱ complex such as the oxygen evolving activity. It is suggested that there most probably exist hydrogen-bonding interactions between PG molecules and PS Ⅱ proteins.YANG Zhenle, WANG Zeneng, JIANG Guizhen, XU Yinong, LI Liangbi & KUANG TingyunPhotosynthesis Research Center, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China 2002Chinese Science Bulletin2002,47,10:1
17Experimental and numerical study of turbulent heat transfer in twisted square ducts显示文摘Wang Liangbi Tao Wenquan Wang Qiuwang 2001ASME Journal of Heat Transfer2001,123,:1
18Numerical study of heat transfer enhancement of finned flat tube bank fin with vortex generators mounted on both surfaces of the fin显示文摘Song Kewei Wang Liangbi Fan Jufang 2008Heat Mass Transfer2008,44,6:1
19The effects of span position of winglet vortex generator on local heat/mass transfer over a three-row flat tube bank fin显示文摘Zhang Yongheng Wang Liangbi Su Yingxin 2004Heat mass Transfer2004,40,:1
20Experimental study of developing turbulent flow and heat transfer in ribbed convergent/divergent square ducts显示文摘Wang Liangbi Tao Wenquan Wang Qiuwang 2001Int J Heat and Fluid Flow2001,22,6:1
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