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The methyl jasmonate-responsive transcription factor SmMYB1 promotes phenolic acid biosynthesis in Salvia miltiorrhiza

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Horticulture Research 2021年第1期8卷 147-159页

作者： Wei Zhou Min Shi changping deng Sunjie Lu Fenfen Huang Yao Wang Guoyin Kai Laboratory of Medicinal Plant Biotechnology College of PharmacyZhejiang Chinese Medical University310053 HangzhouZhejiangChina Institute of Plant Biotechnology School of Life SciencesShanghai Normal University200234 ShanghaiChina

Water-soluble phenolic acids are major bioactive compounds in the medicinal plant species Salvia *** acid biosynthesis is induced by methyl jasmonate(MeJA)in this important Chinese ***,we investigated the mechanism underlying this induction by analyzing a transcriptome library of *** in response to *** transcriptome analysis identified the MeJA-responsive R2R3-MYB transcription factor-encoding gene *** SmMYB1 significantly promoted phenolic acid accumulation and upregulated the expression of genes encoding key enzymes in the phenolic acid biosynthesis pathway,including cytochrome P450-dependent monooxygenase(CYP98A14).Dual-luciferase(dual-LUC)assays and/or an electrophoretic mobility shift assays(EMSAs)indicated that SmMYB1 activated the expression of CYP98A14,as well as the expression of genes encoding anthocyanin biosynthesis pathway enzymes,including chalcone isomerase(CHI)and anthocyanidin synthase(ANS).In addition,SmMYB1 was shown to interact with SmMYC2 to additively promote CYP98A14 expression compared to the action of SmMYB1 *** together,these results demonstrate that SmMYB1 is an activator that improves the accumulation of phenolic acids and anthocyanins in *** findings lay the foundation for in-depth studies of the molecular mechanism underlying MeJA-mediated phenolic acid biosynthesis and for the metabolic engineering of bioactive ingredients in ***.

关键词： phenolic additive promoted

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某软弱路基冲压与强夯处理对比试验研究

交通科技 2008年第1期18卷 56-58页

作者：邓长平周俊江西省高等级公路管理局南昌330025

在某大型公路工程的软弱地基处理中,分别进行了冲击压实处理和强夯处理的试验。在2种施工方法的工后检测中,分别对干密度、压缩模量、面层强度等指标进行了对比研究,并对2种方法的工效进行了比较。研究表明:对于这种地下水位埋藏浅、压... 详细信息

在某大型公路工程的软弱地基处理中,分别进行了冲击压实处理和强夯处理的试验。在2种施工方法的工后检测中,分别对干密度、压缩模量、面层强度等指标进行了对比研究,并对2种方法的工效进行了比较。研究表明:对于这种地下水位埋藏浅、压缩模量和标准贯入击数较低的软弱地基,冲压处理的效果和工艺效益均要优于强夯处理。

关键词：冲压强夯地基处理效果试验

Time-like Willmore surfaces in Lorentzian 3-space

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Science China Mathematics 2006年第1期49卷 75-85页

作者： deng Yanjuan WANG changping LMAM School of Mathematical Sciences Peking University Beijing 100871 China LMAM School of Mathematical Sciences Peking University Beijing 100871 China

Let R13 be the Lorentzian 3-space with inner product (, ). Let Q3 be the conformal compactification of R13, obtained by attaching a light-cone C∞ to R13 in infinity. Then Q3 has a standard conformal Lorentzian structure with the conformal transformation group O(3,2)/{±1}. In this paper, we study local conformal invariants of time-like surfaces in Q3 and dual theorem for Willmore surfaces in Q3. Let M (?) R13 be a time-like surface. Let n be the unit normal and H the mean curvature of the surface M. For any p ∈ M we define S12(p) = {X ∈ R13 (X - c(P),X - c(p)) = 1/H(p)2} with c(p) = P+ 1/H(p)n(P) ∈ R13. Then S12 (p) is a one-sheet-hyperboloid in R3, which has the same tangent plane and mean curvature as M at the point p. We show that the family {S12(p),p ∈ M} of hyperboloid in R13 defines in general two different enveloping surfaces, one is M itself, another is denoted by M (may be degenerate), and called the associated surface of M. We show that (i) if M is a time-like Willmore surface in Q3 with non-degenerate associated surface M, then M is also a time-like Willmore surface in Q3 satisfying M = M; (ii) if M is a single point, then M is conformally equivalent to a minimal surface in R13.

关键词： Lorentzian 3-space, Willmore surfaces, conformal Gauss map, dual theorem.

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强夯密实处理块碎石填料试验研究

工程地质学报 2007年第6期15卷 812-816页

作者：周立新黄晓波邓长平空军工程设计研究局北京100068 江西省高等级公路管理局南昌330025

在高填方工程中,压实质量是工程成败的关键因素。强夯法所具有的优点,使其在许多地基处理工程中都有广泛的应用。某山区高填方工程,根据工程的实际需要,采用强夯法对山体爆破块碎石填料进行密实处理。为此,开展现场试验研究。首先对爆... 详细信息

在高填方工程中,压实质量是工程成败的关键因素。强夯法所具有的优点,使其在许多地基处理工程中都有广泛的应用。某山区高填方工程,根据工程的实际需要,采用强夯法对山体爆破块碎石填料进行密实处理。为此,开展现场试验研究。首先对爆破的块碎石填料进行了颗粒分析试验和压实试验,分析其可填性和压实特征。按照试验参数和工序,分别进行了2000kN·m、3000kN·m单点夯试验;同时夯后进行了密实度试验、颗粒分析试验。由此,确定了合理的强夯施工参数。最后根据面层载荷试验的检测,以此确定的施工参数在该工程取得了良好的处理效果。

关键词：强夯填料密实试验

Computational investigation on hydrodynamic and sediment transport responses influenced by reclamation projects in the Meizhou Bay,China

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Frontiers of Earth Science 2020年第3期14卷 493-511页

作者： Gefei deng Yongming Shen changping Li Jun Tang Institute of Environmental and Ecological Engineering Guangdong University of TechnologyGuangzhou510006China State Key Laboratory of Coastal and Offshore Engineering Dalian University of TechnologyDalian116024China Research Center for Eco-Environmental Engineering Dongguan University of TechnologyDongguan523808China

Reclamation projects are the main method of coastal exploitation,and the hydrodynamic environmental effect,together with the sediment transport response of the reclamation project,is important to the project’s site selection and environmental ***,a 3D numerical model based on the finite volume community ocean model(FVCOM)is applied to simulate the changes in the Meizhou Bay’s hydrodynamic environment and sediment transport after a reclamation *** reclamation project greatly alters the shape of the shoreline and narrows the bay,leading to a significant change in its hydrodynamic environment and sediment *** the project,the clockwise coastal residual current in the corner above the Meizhou Island gradually *** obvious counter-clockwise coastal residual current emerges around the rectangular *** tidal prism decreases by 0.65×10^9 and 0.44×10^9 m^3 in the spring and neap tides,*** residence time presents a major *** changes lead to the weakening of the water exchange capacity and the reduction of the self-purification capacity of the *** in the tidal channel weaken,whilst currents in the horizontal channel *** strength and scope of particle trajectories around the horizontal channel and the Meizhou Island *** suspended sediment concentration(SSC)increases in the majority of the Meizhou Bay but decreases in the lateral *** eastern corner of Z2 shows a tendency to *** western region of the Meizhou Island,the upper portion of the rectangular corner and the western corner of Z4 show a tendency to *** reclamation project increases the maximum storm surges by 0.06 m and decreases the maximum significant wave heights by 0.09 m.

关键词： Meizhou Bay FVCOM-h SWAN reclamation project hydrodynamic environment SSC typhoon

Characterization of a new natural graft chimera of citrus 'Zaohong navel orange' with potential for the industry

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Characterization of a new natural graft chimera of citrus 'Z...

药用植物丹参中丹参酮ⅡA的提取分离工艺研究

湖北省遗传学会、江西省遗传学会2006年学术年会暨学术讨论会

作者： Min Zhang, Xiuxin deng , changping Qin, Chunli Chen, Qing Liu, Zhiyong Hu, Linlin Guo, Wenhua Song, Yong Tan, & Shengcai Liao National Key Laboratory of Crop Genetic Improvement, National Center of Citrus Breeding, Huazhong Agricultural University, Wuhan 430070, China Zigui Agricultural Bureau, Zigui County, Hubei province, 443600. China

Citrus is an economically important fruit crop grown in tropical and subtropical climates in a large number of countries. Because of heterozygosity, reproduction by nucellar embryony, juvenility, male or/and female abortion, most important citrus scion cultivars did not result from cross breeding programs, but from bud mutation. Recently, we discovered a naturally occurring citrus graft chimera in the process of citrus bud mutation investigation, which was named Zaohong navel orange (Citrus sinensis-unshiu). It arose at the junction where a Robertson navel orange (Citrus sinensis) bud had been top-worked onto Satsuma mandarin (Citrus unshiu). Two branches were later observed which produced fruits with rind like Robertson navel orange, but with flesh like Satsuma mandarin.

关键词： Characterization of a new natural graft chimera of citrus Zaohong navel orange with potential for the industry

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上海师范大学学报（自然科学版） 2018年第6期47卷 754-761页

作者：张毅邓昌平时敏付蓉王瑶曹建国开国银上海师范大学生命科学学院植物种质资源开发协同创新中心上海200234 浙江中医药大学药学院浙江杭州311402

石油醚、乙酸乙酯作为萃取剂,利用聚酰胺凝胶柱分离,乙醇/水梯度洗脱以分离丹参(Salvia miltiorrhiza),得到丹参酮ⅡA.所得到的产物经过核磁共振谱(1H NMR、13C NMR)确证了结构,并经薄层色谱(TLC)、高效液相色谱(HPLC)分析,显示其纯度达... 详细信息

石油醚、乙酸乙酯作为萃取剂,利用聚酰胺凝胶柱分离,乙醇/水梯度洗脱以分离丹参(Salvia miltiorrhiza),得到丹参酮ⅡA.所得到的产物经过核磁共振谱(1H NMR、13C NMR)确证了结构,并经薄层色谱(TLC)、高效液相色谱(HPLC)分析,显示其纯度达到93%以上.本研究提供了一种高效的丹参酮ⅡA的提取分离方法,具有提取率高、成本低、安全可靠等优点,也为其他药用植物有效成分的分离提供参考.

关键词：丹参(Salvia miltiorrhiza) 丹参酮ⅡA 纯化聚酰胺柱层析

Water permeability in MXene membranes: Process matters

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Chinese Chemical Letters 2020年第6期31卷 1665-1669页

作者： Hang Zhou Yuwei Wang Fuqiang Wang Hao deng Yongchen Song changping Li Zheng Ling Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education School of Energy&Power EngineeringDalian University of TechnologyDalian 116024China Research Center for Eco-Environmental Engineering Dongguan University of TechnologyDongguan 523808China

Recent studies have shown impressive transport behaviors of water and ions within lamellar MXene membranes,which endows great promise in developing advanced separation application based high performance MXene ***,most of the researches focused on modification of MXene nanoflakes and optimizing interlayer distance,leaving the impact of membrane fabrication process *** this work,we studied the water flux of membranes made by vacuum filtration using delaminated MXene nanoflakes as the *** results show that the water permeability is extremely sensitive to the process,especially at the drying process,loading and deposit rate of nanoflakes(the feeding concentration).We find that the voids from less ordered stack rather than in-plane defects and interlayer galleries contribute to the large water *** voids can be effectively avoided via deposition of MXene nanoflakes at a slow *** the stack of MXene nanoflakes during vacuum filtration and drying are critical for development of MXene membranes with desired performance for water permeation.

关键词： Exfoliation MXene Two-dimensional materials Water permeability Water treatment

Performance analysis of wireless local area networks(WLAN) in a coal-mine tunnel environment

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Mining Science and Technology 2010年第4期20卷 629-634页

作者： ZHU changping deng Xingsong ZHU Jia LI Lei ZENG Xiaoyang YU Hongzhen ZHANG Shen School of Information and Electrical Engineering China University of Mining & Technology Xuzhou 221008 China Department of Computer and Information Engineering Hohai University Changzhou 213022 China China Shipbuilding Industry Corporation No. 723 Research Institute Yangzhou 225000 China College ofTelecomm & Information Engineering Nanjing University of Posts & Telecommunication Nanjing 210003 China School of Automation Nanjing University of Science and Technology Nanjing 210094 China

In order to establish an effective wireless communication system in an underground coal-mine environment, the propagation of radio waves through a rectangular-like mine tunnel was investigated by jointly, considering both the dielectric constant and the reflectance of a mine tunnel. By combining free space and modified waveguide propagation models, we propose a new hybrid propagation model based on ray tracing. Simulation results have shown the effectiveness of establishing a wireless Local Area Network (LAN) in this coal-mine environment. The results of this research will be very useful as a guide in the design and development of tunnel wireless LAN systems.

关键词： mine tunnel hybrid propagation model wireless LAN