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Overexpression of an ABA biosynthesis gene using a stress-inducible promoter enhances drought resistance in petunia

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Horticulture Research 2015年第1期2卷 255-263页

作者： Alejandro c Estrada-Melo chao ma Michael S Reid cai-Zhong Jiang Department of Plant Sciences University of California DavisDavisCAUSA United States Department of Agriculture Crops Pathology and Genetic Research UnitAgricultural Research ServiceDavisCAUSA

The response of plants to drought stress includes reduced transpiration as stomates close in response to increased abscisic acid(ABA)*** overexpression of 9-cis-epoxycarotenoid dioxygenase(NcED),a key enzyme in ABA biosynthesis,increases drought resistance,but causes negative pleiotropic effects on plant growth and *** overexpressed the tomato NcED(LeNcED1)in petunia plants under the control of a stress-inducible promoter,*** water stress,the transgenic plants had increased transcripts of NcED mRNA,elevated leaf ABA concentrations,increased concentrations of proline,and a significant increase in drought *** transgenic plants also displayed the expected decreases in stomatal conductance,transpiration,and *** 14 days without water,the control plants were dead,but the transgenic plants,though wilted,recovered fully when ***-watered transgenic plants grew like non-transformed control plants and there was no effect of the transgene on seed dormancy.

关键词： inducible pet drought

On a Kind of Series Summation Utilizing c-Numbers

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Journal of mathematical Research with Applications 2014年第1期34卷 1-11页

作者： Leetsch c.HSU Xinrong ma School of mathematical Sciences Dalian University of Technology School of mathematical Sciences Soochow University

This paper provides a pair of summation formulas for a kind of combinatorial series involvingak+b m as a factor of the *** construction of formulas is based on a certain series transformation formula[2,7,9]and by making use of the c-numbers[3].Various consequences and examples including several remarkable classic identities are presented to illustrate some applications of the formulas obtained.

关键词： combinatorial series summation formula diference operator generalized Stirling number c-number.

Stationary distribution and long-time behavior of cOVID-19 model with stochastic effect

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International Journal of Biomathematics 2023年第2期16卷 85-114页

作者： c.Gokila M.Sambath K.Balachandran Yong-Ki ma Department of mathematics Periyar University Salem 636011India Department of mathematics Bharathiar University Coimbatore 641046India Department of Applied mathematics Kongju National University.Chungcheongnam-do 32588Republic of Korea

The coronavirus disease(cOVID-19)is a dangerous pandemic and it spreads to many people in most of the *** this paper,we propose a cOVID-19 model with the assumption that it is affected by *** positivity,we prove the global existence of positive solution and the system exhibits extinction under certain parametric ***,we establish the stability region for the stochastic model under the behavior of stationary *** stationary distribution gives the guarantee of the appearance of infection in the population,Besides that,we find the reproduction ratio R for prevail and disappear of infection within the human *** the graphical representation,we have validated the threshold conditions that define in our theoretical findings.

关键词： cOVID-19 model extinction threshold value stationary distribution

Application of supercritical and subcritical fluids in food processing

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food Quality and Safety 2018年第2期2卷 59-67页

作者： maša Knez Hrnčič Darija cör Mojca Tancer Verboten Željko Knez faculty of chemistry and chemical Engineering Laboratory for Separation Processes and Product DesignUniversity of MariborSmetanova 17MariborSlovenia faculty of Law University of MariborMladinska ulica 9MariborSlovenia faculty of Medicine University of MariborTaborska ulica 8MariborSlovenia

Using high pressure as a processing tool can overcome the legal limitations for solvent residues and restrictions on the use of conventional solvents in chemical ***,particulate products can also be achieved by means of supercritical fluid(Scf)*** contribution will give a limited overview of applications of subcritical fluid and Scf and will present the energy savings compared with conventional production *** these qualities,Scfs could certainly be applied as a replacement for conventional solvents in extractive and non-extractive processes,as a nontoxic,inexpensive,non-flammable,and non-polluting *** applications,such as high pressure sterilization,jet-cutting,thin film deposition for microelectronics,and the separation of value-added products from fermentation broths in the biotechnology field,have been developed on an industrial scale to produce marketable food products.

关键词： separation fractionation extraction value-added products green solvents.

Relaxant effect and possible mechanism of 17-nor-subincanadine E in rabbit corpora cavernosa

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Asian Journal of Andrology 2011年第5期13卷 747-753页

作者： Otacilio D Benvindo Nilberto Rf Nascimento claudia f Santos manasses c fonteles Edilberto R Silveira Daniel E Uchoa Adriana R campos Karina ma cunha flavia A Santos Vietla S Rao Department of Physiology and Pharmacology Faculty of Medicine Federal University of Ceara PO Box 3157 60430-270 Fortaleza CE Brazil Superior Institute of Biomedicine Caara State University Fortaleza CE Brazil Detriment of Organic and Inorganic chemistry Federal University of Ceara 60455-760 Fortaleza CE Brazil

compounds with dual action on cyclic adenosine monophosphate （cAMP） and cyclic guanosine monophosphate （cGMP） may be a treatment option for erectile dysfunction, as they not only promote penile erection but also prevent the upregulation of phosphodiesterase-5. In this study, we examined the possible relaxant effect and mechanism of 17-nor-subincanadine E （SEc, 0.2-200 pmol I^-1）, a plant-derived alkaloid, in rabbit corpus cavernosum （Rbcc） strips that had been precontracted by exposure to phenylephrine （10 pmol I^- 1） or a high concentration of K＋（60 mmol I^- 1） in vitro. In addition to SEc＇s effect on cAMP and cGMP levels, electrical field stimulation （EfS） in phenylephrine-precontracted Rbcc and calcium chloride （1-100 mmol I^-1） evoked responses in depolarized Rbcc were analysed. SEc relaxed the phenylephrine-precontracted Rbccs in a concentration-dependent manner. Atropine, guanethidine and N-co-nitro-L-arginine methyl ester （L-NAME） did not have any effect on the relaxation of RBccs. When 1H-1,2,4oxadiazole[4,3-a] quinoxalin-1-one （ODQ） was added, it effectively blocked the relaxant response of SEc. Although SEc enhanced the maximal relaxation produced by sodium nitroprusside （SNP） and forskolin in phenylephrine-precontracted cavernosal smooth muscle, it caused a decrease in the maximal contractile response induced by calcium chloride in depolarized Rbccs. The relaxant effect of SEc was paralleled by an increase in the tissue levels of the cyclic nucleotides cAMP and cGMP. We conclude that SEc promotes the relaxation of Rbcc, possibly favouring cAMP and cGMP accumulation and calcium blockade. This novel mechanism could be useful for patients who do not benefit from phosphodiesterase inhibitors and for those with endothelial and nitrergic dysfunction, such as patients with diabetes, hypertension and dyslipidaemias.

关键词： 17-nor-subincanadine E cyclic nucleotides electrical field stimulation nitric oxide rabbit corpus cavernosum smoothmuscle relaxation

Effective ethanol-to-cO_(2) electrocatalysis at iridium-bismuth oxide featuring the impressive negative shifting of the working potential

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Journal of Energy chemistry 2023年第11期86卷 23-31,I0002页

作者： Ruilin Wei Yue Liu Huazhong ma Xingyu ma Yaoyue Yang Key Laboratory of General chemistry of the National Ethnic Affairs commission School of Chemistry and EnvironmentSouthwest Minzu UniversityChengdu 610041SichuanChina

Since low overpotential for the anodic ethanol oxidation reaction(EOR)can favor the higher output voltage and power of direct ethanol fuel cells(DEfcs),it is critical to design new EOR catalysts with efficient ethanol-to-cO_(2)activity at low applied ***,carbon-supported Ir-Bi_(2)O_(3)(Ir-Bi_(2)O_(3)/c)catalysts with highly dispersive bismuth oxide on the iridium surface are designed and prepared,which can merit splitting the ethanol c–c bond and promoting the oxidation of c1 intermediates at the bifunctional *** as-obtained Ir-Bi2O3/c catalysts show superior EOR mass activity of up to ca.2250 m A ***,they exhibit the record lowest onset oxidation potentials(0.17–0.22 V ***)and the peak potential(ca.0.58 V ***),being 130–300 m V lower than the previous landmark noble metallic ***,an apparent c1 pathway faraday efficiency(fEc1)of 28%±5.9%at 0.5 V *** can be obtained at Ir-Bi_(2)O_(3)/*** work might provide new insights into the new anodic EOR catalysts for increasing the power of DEfcs.

关键词： EOR Low overpotential c1 selectivity Iridium Bismuth oxide

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flat friction spot joining of aluminum alloy to carbon fiber reinforced polymer sheets:Experiment and simulation

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Journal of materials Science & Technology 2022年第12期107卷 266-289页

作者： Peihao Geng Ninshu ma Hong ma Yunwu ma Kazuki Murakami Huihong Liu Yasuhiro Aoki Hidetoshi fujii Joining and Welding Research Institute Osaka University11-1 MihogaokaOsaka 567-0047IbarakiJapan MOE Key Lab for Liquid-Solid Structure Evolution and material Processing Institute of Materials JoiningShandong UniversityJinan 250061China

The Al alloy and carbon fiber reinforced polymer(cfRP)hybrid structures,incorporating the performance advantages of the two materials,have been attracting more attention in high-end manufacturing *** the current investigation,the flat friction spot joining(fSJ)was employed in joining the AA6061-T6 alloy and cfRP *** significance of temperature distribution in influencing joint quality was highlighted through analyzing interface microstructural features,weld defect formation as well as *** understand the role of thermal energy generation and conduction in the process comprehensively,a 3D thermal-mechanical coupling finite element model was *** interfacial temperature was characterized by an uneven distribution behavior due to the inhomogeneous heat *** peak temperatures on the top surface and Al alloy to cfRP interface at 1500 rpm rotational speed with 0.1 mm/s plunging speed were 498℃and 489°c,*** peak interface temperature was reduced to286℃at 250 rpm,which produced an extremely small melted *** with the plunging speed,rotational speed was found to be the predominant parameter for determining the joint property,which could be optimized to simultaneously realize the avoidance of thermal decomposition of cfRP,the sufficient melting duration time,and the wide enough melted *** thermal histories and melted area profiles were in agreement with experimental *** findings could be utilized to provide some feasible guidance for process optimization of dissimilar fSJ of metals and composites.

关键词： friction spot joining Numerical simulation cfRP/Al alloy Interface microstructure Thermal conduction

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QuEchERS结合HPLc检测辣椒及其制品中天然辣椒素、二氢辣椒素和合成辣椒素

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食品科学 2025年第2期46卷 240-247页

作者：成璐瑶温雅君石文婷周子莹马丽艳中国农业大学食品科学与营养工程学院北京100083 北京市农产品质量安全中心北京100029 农业农村部农产品质量检验测试中心(北京) 北京100083

建立一种QuEchERS结合高效液相色谱快速检测辣椒及其制品中的天然辣椒素、二氢辣椒素和合成辣椒素的方法。样品用乙腈提取,无水硫酸镁、十八烷基硅烷(c18)、乙二胺-N-丙基硅烷化硅胶、石墨化炭黑复合吸附剂净化。采用Agilent Eclipse Pl... 详细信息

建立一种QuEchERS结合高效液相色谱快速检测辣椒及其制品中的天然辣椒素、二氢辣椒素和合成辣椒素的方法。样品用乙腈提取,无水硫酸镁、十八烷基硅烷(c18)、乙二胺-N-丙基硅烷化硅胶、石墨化炭黑复合吸附剂净化。采用Agilent Eclipse Plus c18(150 mm×4.6 mm,5μm)分离,以0.4%磷酸水溶液和90%乙腈溶液为流动相进行梯度洗脱,荧光检测器进行检测。结果表明:天然辣椒素、二氢辣椒素和合成辣椒素在0.20~100 mg/L范围内线性关系良好,决定系数(R2)均大于0.999。天然辣椒素的方法检出限为0.014~0.069 mg/kg,定量限为0.046~0.23 mg/kg;二氢辣椒素的方法检出限为0.023~0.12 mg/kg,定量限为0.077~0.39 mg/kg;合成辣椒素的方法检出限为0.018~0.088 mg/kg,定量限为0.059~0.30 mg/kg。在干辣椒、鲜辣椒、香菇酱、辣椒油4种基质中,3个不同添加水平下的加标回收率为91.6%~117.2%,相对标准偏差为0.2%~6.1%。该方法简便、准确,不仅适用于干、鲜辣椒,而且适用于高油、高蛋白等辣椒制品中天然辣椒素、二氢辣椒素和合成辣椒素含量的检测。

关键词： QuEchERS 高效液相色谱辣椒辣椒素合成辣椒素

Exploring system architectures in AADL via Polychrony and SynDEx

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frontiers of computer Science 2013年第5期7卷 627-649页

作者： Huafeng YU Yue ma Thierry GAUTIER Loc BESNARD Jean-Pierre TALPIN Paul Le GUERNIc Yves SOREL INRIA Rennes-Bretagne Atlantique 263 av. du Général LeclercRennes 35042 France IRISA/cNRS 263 av. du Général LeclercRennes 35042 France INRIA Paris-Rocquencourt Domaine de VoluceauBP 105Le Chesnay Cedex 78153 France

Architecture analysis&design language(AADL)has been increasingly adopted in the design of embedded systems,and corresponding scheduling and formal verification have been well ***,little work takes code distribution and architecture exploration into account,particularly considering clock constraints,for distributed multi-processor *** this paper,we present an overview of our approach to handle these concerns,together with the associated toolchain,***,in order to avoid semantic ambiguities of AADL,the polychronous/multiclock semantics of AADL,based on a polychronous model of computation,is *** synthesis is then carried out in Polychrony,which bridges the gap between the polychronous semantics and the synchronous semantics of *** same timing semantics is always preserved in order to ensure the correctness of the transformations between diferent *** distribution and corresponding scheduling is carried out on the obtained SynDEx model in the last step,which enables the exploration of architectures originally specified in *** contribution provides a fast yet efcient architecture exploration approach for the design of distributed real-time and embedded *** avionic case study is used here to illustrate our approach.

关键词： Polychrony Signal AADL SynDEx architecture exploration modeling timing analysis scheduling distribution