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Mutation of DELAYED GREENING1 impairs chloroplast RNA editing at elevated ambient temperature in Arabidopsis

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Journal of Genetics and Genomics 2020年第4期47卷 201-212页

作者： Jingliang Sun Yingying Tian Qichao lian jian-Xiang Liu State Key Laboratory of Genetic Engineering School of Life SciencesFudan UniversityShanghai200433China State Key Laboratory of Plant Physiology and Biochemistry College of Life SciencesZhejiang UniversityHangzhou310027China

Chloroplasts are important for plant growth and *** editing in chloroplast converts cytidines(Cs)to uridine s(Us)at specific transcript positions and provides a correction mechanism to restore conserved codons or creates start or stop ***,the underlined molecular mechanism is not yet fully unders *** the present study,we identi fied a thermo-sensi tive mutantin leaf color 1(tst1)and found that TSL1 is allelic to DELAYED GREENING 1(DG1).The mis sense mutation of DG1 in tsl1 mutant confers a high temperature sensitivity and impaired chloroplast development at an elevated ambient temperature in *** analysis showed that chloroplast RNA editing at seve ral sites including accD-2568,ndhD-2,and petL-5 is impaired in tsl1 mutant plants grown at an elevated ***1 interacts with MORF2 and other proteins such as DYW1 and DYW2 involved in chloroplast RNA *** vitro RNA electrophoretic mobility shift assay demonstrated that DG1 binds to RNA targets such as accD,ndhD,and ***,our results revealed that DG1 is important for maintaining chloroplast mRNA editing in Arabidopsis.

关键词： Chloroplast development mRNA editing Warm temperature

Chiral Separation of Ibuprofen and Terbutaline by Nonaqueous Capillary Electrophoresis with Conductance Detection

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Chemical Research in Chinese Universities 2002年第1期18卷 16-19页

作者： DENG Guang-hui WEI Shou-lian MO Jin-yuan Department of Chemistry Guangxi University for NationalitiesNanning 530006P.R.China Department of Chemistry Zhongshan UniversityGuangzhou 510275P.R.China

In the nonaqueous N,N -dimethylformamide medium, the chiral drugs ibuprofen and terbutaline were successfully separated with sulfonyl- β -cyclodextrin(s- β -CD) as the chiral selector by capillary electrophoresis with conductance detection. The comparison of the effects of three CDS( β -CD, diethylic- β -CD, sulfonyl- β -CD) on the chiral separation was made and the resolution mechanism was proposed.

关键词： Nonaqueous medium Capillary electrophoresis with conductance detection Sulfonyl β -CD Resolution N,N -Dimethylformamide

Existence of multiple solutions for the laminar flow in a porous channel with suction at both slowly expanding and contracting walls

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International Journal of Minerals,Metallurgy and Materials 2011年第4期18卷 494-501页

作者： Xin-hui Si lian-cunZheng Xin-xin Zhang Ying Chao Applied Science School University of Science and Technology Beijing Beijing 100083 China Department of Mechanical Engineering University of Science and Technology Beijing Beijing 100083 China Chemical Defense Institute of the PLA Beijing 102205 China

The asymptotic behavior of solutions of a similarity equation for the laminar flow in a porous channel with suction at both expanding and contracting walls has been obtained by using a singular perturbation ***,in the matching process,this solution neglects exponentially small *** take into account these exponentially small terms,a method involving the inclusion of exponentially small terms in a perturbation series was used to find two of the solutions *** series involving the exponentially small terms and expansion ratio predicts dual ***,the result indicates that the expansion ratio has much important influence on the solutions.

关键词： laminar flow porous channels multiple solutions singular perturbation method

Semi-supervised Ladder Networks for Speech Emotion Recognition

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International Journal of Automation and computing 2019年第4期16卷 437-448页

作者： jian-Hua Tao jian Huang Ya Li Zheng lian Ming-Yue Niu National Laboratory of Pattern Recognition Beijing 100190 China School of Artificial Intelligence University of Chinese Academy of Science (CAS) Beijing 100190 China CAS Center for Excellence in Brain Science and Intelligence Technology Institute of Automation Chinese Academy of Sciences Beijing 100190 China

As a major component of speech signal processing, speech emotion recognition has become increasingly essential to understanding human communication. Benefitting from deep learning, many researchers have proposed various unsupervised models to extract effective emotional features and supervised models to train emotion recognition systems. In this paper, we utilize semi-supervised ladder networks for speech emotion recognition. The model is trained by minimizing the supervised loss and auxiliary unsupervised cost function. The addition of the unsupervised auxiliary task provides powerful discriminative representations of the input features, and is also regarded as the regularization of the emotional supervised task. We also compare the ladder network with other classical autoencoder structures. The experiments were conducted on the interactive emotional dyadic motion capture (IEMOCAP) database, and the results reveal that the proposed methods achieve superior performance with a small number of labelled data and achieves better performance than other methods.

关键词： Speech emotion recognition the ladder network semi-supervised learning autoencoder regularization

Standing Waves of the Inhomogeneous Klein-Gordon Equations with Critical Exponent

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Acta Mathematica Sinica,English Series 2006年第2期22卷 357-366页

作者： Zai hui GAN jian ZHANG College of Mathematics and Software Science Sichuan Normal University

This paper is concerned with the standing wave in the inhomogeneous nonlinear Klein- Gordon equations with critical exponent. Firstly, we obtain the existence of standing waves associated with the ground states by using variational calculus as well as a compactness lemma. Next, we establish some sharp conditions for global existence in terms of the characteristics of the ground state. Then, we show that how small the initial data are for the global solutions to exist. Finally, we prove the instability of the standing wave by combining the former results.

关键词： inhomogeneous Klein Gordon equation standing wave ground state global existence blow up instability

Profiles of Blow-up Solutions for the Gross-Pitaevskii Equation

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Acta Mathematicae Applicatae Sinica 2010年第4期26卷 597-606页

作者： Shi-hui Zhu jian Zhang College of Mathematics Sichuan UniversityChengdu 610064China College of Mathematics and Software Science Sichuan Normal UniversityChengdu 610066China

This paper is concerned with the blow-up solutions of the Cauchy problem for Gross-Pitaevskii *** terms of Merle and Raphёel＇s arguments as well as Carles＇ transformation,the limiting profiles of blow-up solutions are *** addition,the nonexistence of a strong limit at the blow-up time and the existence of L2 profile outside the blow-up point for the blow-up solutions are obtained.

关键词： Gross-Pitaevskii equation blow-up solution Bose-Einstein condensate limiting profile harmonic potential

Upper Bound Solution of the Resisting Moment Bearing Capacity of A Composite Bucket Shallow Foundation of An Offshore Wind Turbine in Sand

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China Ocean Engineering 2022年第6期36卷 859-870页

作者： LIU Run LI Tian-liang CHEN Guang-si lian Ji-jian State Key Laboratory of Hydraulic Engineering Simulation and Safety Tianjin UniversityTianjin 300072China

Bearing the large moment that is generated by the wind load that acts on the upper structure of offshore wind turbines is an important feature of their foundations that is different from other offshore structures.A composite bucket shallow foundation(CBSF)has been proposed by Tianjin University to address the soft geological conditions in the offshore regions of China for wind *** CBSF is a new type of foundation and is effective against large *** soil deformation test of a CBSF and the numerical simulation study under the same working conditions are carried out to determine the failure mechanism of a CBSF under moment *** resisting soil compression rateηm is defined as a new empirical parameter that indicates the ability of the soil inside the bucket to resist moment *** upper limit of the resisting moment bearing capacity of the bucket foundation is derived through the upper bound theorem of classical plasticity theory based on the failure *** calculation method is validated by tests of bucket models with different height-diameter ratios in sand under moment loading.

关键词： bucket foundation failure mechanism resisting moment bearing capacity upper bound theorem resisting soil compression rate

Vectorial Variational Principle with Variable Set-Valued Perturbation

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Acta Mathematica Sinica,English Series 2015年第4期31卷 595-614页

作者： jian ZHANG Jing hui QIU School of Mathematical Sciences Soochow University

We give a general vectorial Ekeland＇s variational principle, where the objective function is defined on an F-type topological space and taking values in a pre-ordered real linear space. Being quite different from the previous versions of vectorial Ekeland＇s variational principle, the perturbation in our version is no longer only dependent on a fixed positive vector or a fixed family of positive vectors. It contains a family of set-valued functions taking values in the positive cone and a family of subadditive functions of topology generating quasi-metrics. Hence, the direction of the perturbation in the new version is a family of variable subsets which are dependent on the objective function values. The general version includes and improves a number of known versions of vectorial Ekeland＇s variational principle. From the general Ekeland＇s principle, we deduce the corresponding versions of Caristi-Kirk＇s fixed point theorem and Takahashi＇s nonconvex minimization theorem. Finally, we prove that all the three theorems are equivalent to each other.

关键词： Vectorial Ekeland's variational principle F-type topological space locally convex space,pre-ordered linear space direction of perturbation

Phosphine in various matrixes

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Journal of Environmental Sciences 2003年第3期15卷 339-341页

作者： HANSheng-hui WANGZi-jian ZHUANGYa-hui YUZhi-ming DIETMARGLINDEMANN NationalKeyLaboratoryofAquaticChemistry ResearchCenterforEco-EnvironmentalSciencesBeijing100085China.E-maill:zhuangyh@sun.ihep.ac.en InstituteofOceanology ChineseAcademyofOceanologyChineseAcademyofSciencesQingdao266071China InstituteofAnimalHygieneandVeterinaryPublicHealth UniversityofLeipzigD-04103LeipzigGermany

Matrix-bound phosphine was determined in the Jiaozhou Bay coastal sediment, in prawn-pond bottom soil, in the eutrophic lake Wulongtan, in the sewage sludge and in paddy soil as well. Results showed that matrix-bound phosphine levels in freshwater and coastal sediment, as well as in sewage sludge, are significantly higher than that in paddy soil. The correlation between matrix bound phosphine concentrations and organic phosphorus contents in sediment samples is discussed.

关键词： phosphine concentration sediment paddy soils sewage sludge