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Gene expression,transcription factor binding and histone modification predict leaf adaxial-abaxial polarity related genes

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Horticultural Plant Journal 2024年第4期10卷 971-982页

作者： Wei Sun Zhicheng Zhang Guusje Bonnema Xiaowu Wang Aalt Dirk Jan van dijk State Key Laboratory of Vegetable Biobreeding Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijing 100081China Sino-Dutch Joint Lab of Vegetable Genomics Beijing 100081China Bioinformatics Group Wageningen University and Research6708 PB Wageningenthe Netherlands Plant Breeding Wageningen University and Research6708 PB Wageningenthe Netherlands Biosystems Data Analysis Swammerdam Institute for Life SciencesUniversity of Amsterdam1090 GE Amsterdamthe Netherlands

Leaf adaxial-abaxial(ad-abaxial)polarity is crucial for leaf morphology and function,but the genetic machinery governing this process remains *** uncover critical genes involved in leaf ad-abaxial patterning,we applied a combination of in silico prediction using machine learning(ML)and experimental analysis.A Random Forest model was trained using genes known to influence ad-abaxial polarity as ground *** expression data from various tissues and conditions as well as promoter regulation data derived from transcription factor chromatin immunoprecipitation sequencing(ChIP-seq)was used as input,enabling the prediction of novel ad-abaxial polarity-related genes and additional transcription *** to this,available and newly-obtained transcriptome data enabled us to identify genes differentially expressed across leaf ad-abaxial *** on these analyses,we obtained a set of 111 novel genes which are involved in leaf ad-abaxial *** explore implications for vegetable crop breeding,we examined the conservation of expression patterns between Arabidopsis and Brassica rapa using single-cell *** results demonstrated the utility of our computational approach for predicting candidate genes in crop *** findings expand the understanding of the genetic networks governing leaf ad-abaxial differentiation in agriculturally important vegetables,enhancing comprehension of natural variation impacting leaf morphology and development,with demonstrable breeding applications.

关键词： Machine learning Leaf polarity Arabidopsis thaliana Brassica rapa Transcription factor

A Comparison of Hydrothermal Aging, SO₂ and Propene Poisoning Effects on NH₃-SCR over Cu-ZSM-5 and Cu-SAPO-34 Catalysts

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Journal of Materials Science and Chemical Engineering 2024年第5期12卷 10-28页

作者： Kouadio Brou Albert Koffi Konan Martin Zran van Eric-simon Horo Kone Unité de Formation et de Recherche des Sciences et de Technologies (UFR ST) Universit&#233 Alassane Ouattara Bouak&#233 C&#244te d&#8217Ivoire Unité de Formation et de Recherche Environnement (UFR E) Universit&#233 Jean Lorougnon Gu&#233d&#233 Daloa C&#244te d&#8217Ivoire Unité de Formation et de Recherche des Sciences des Structures de la Mati&#232re et de Technologie (UFR SSMT) Abidjan C&#244te d&#8217Ivoire

This study was aimed to investigate the effects of hydrothermal aging, propene and SO2 poisoning on the ammonia-selective catalytic reduction (NH3-SCR) performance of both Cu-SAPO-34 and Cu-ZSM-5. The catalytic activities of fresh, aged and poisoned samples were tested in ammonia-selective catalytic reduction (NH3-SCR) of NOx conditions. The XRD, TG and N2-desorption results showed that the structures of the Cu-SAPO-34 and Cu-ZSM-5 remained intact after 750˚C hydrothermally aged, SO2 and propene poisoned. After hydrothermal aging at 750˚C for 12 h, the NO reduction performance of Cu-ZSM-5 was significantly reduced at lower temperatures, while that of Cu-SAPO-34 was less affected. Moreover, Cu-SAPO-34 catalyst showed high NO conversion with SO2 or propene compared to Cu-ZSM-5. However, Cu-ZSM-5 showed a larger drop in catalytic activity with SO2 or propene compared to Cu-SAPO-34 catalyst. The H2-TPR results showed that Cu2 ions could be reduced to Cu and Cu0 for Cu-ZSM-5, while no significant transformation of copper species was observed for Cu-SAPO-34. Meanwhile, the UV-vis DRS results showed that CuO species were formed in Cu-ZSM-5, while little changes were observed for the Cu-SAPO-34. Cu-SAPO-34 showed high sulfur and hydrocarbon poison resistance compared to Cu-ZSM-5. In summary, Cu-SAPO-34 with small-pore zeolite showed higher hydrothermal stability and better hydrocarbon and sulfur poison resistant than Cu-ZSM-5 with medium-pore.

关键词： Hydrothermal Aging Propene and SO2Poisoning Ammonia-Selective Catalytic Reduction(NH3-SCR) Cu-SAPO-34 Cu-ZSM-5

城市空间何以影响城市产业选择?——以荷兰埃因霍温的空间演变为例

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国际城市规划 2024年第3期39卷 137-144页

作者：陈悦特里·范戴克邵甬澳门科技大学人文艺术学院中国澳门荷兰格罗宁根大学空间科学学院城市规划系同济大学建筑与城市规划学院高密度人居环境生态与节能教育部重点实验室

城市空间是否可以主动地影响产业转型?本文从完整的历史演变视角考察城市空间与产业之间的互动关系,引入路径依赖方法来构建城市与产业互动演变的分析框架,并应用该框架对荷兰的工业城市埃因霍温展开实证研究,详细分析该城市在三个历史... 详细信息

城市空间是否可以主动地影响产业转型?本文从完整的历史演变视角考察城市空间与产业之间的互动关系,引入路径依赖方法来构建城市与产业互动演变的分析框架,并应用该框架对荷兰的工业城市埃因霍温展开实证研究,详细分析该城市在三个历史时期的三次成功的产业转型过程,尤其重点分析城市空间在产业转型中发挥的积极作用。通过研究发现:城市空间在每个关键节点都影响着城市的产业选择,且在不同时代以不同形式影响着产业选择。因此,对于面临产业转型的中国城市而言,应当冷静地审视自身的产业发展历史和固有的城市空间条件,或许可以从中发现适合本城市的产业转型方向。

关键词：产业转型城市空间城市演变路径依赖埃因霍温

Reliability Investigation of BiCGStab and IDR Solvers for the Advection-Diffusion-Reaction Equation

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Communications in Computational Physics 2022年第6期32卷 156-188页

作者： Chris Schoutrop Jan ten Thije Boonkkamp Jan van dijk Department of Applied Physics Eindhoven University of TechnologyThe Netherlands Department of Mathematics and Computer Science Eindhoven University of TechnologyThe Netherlands

The reliability of BiCGStab and IDR solvers for the exponential scheme discretization of the advection-diffusion-reaction equation is *** resulting discretization matrices have real *** consider BiCGStab,IDR(S),BiCGStab(L)and various modifications of BiCGStab,where S denotes the dimension of the shadow space and L the degree of the polynomial used in the polynomial *** implementations of BiCGStab exist which are equivalent in exact arithmetic,however,not in finite precision *** modifications of BiCGStab we consider are;choosing a random shadow vector,a reliable updating scheme,and storing the best intermediate *** is shown that the Local Minimal Residual algorithm,a method similar to the“minimize residual”step of BiCGStab,can be interpreted in terms of a time-dependent advection-diffusion-reaction equation with homogeneous Dirichlet boundary conditions for the residual,which plays a key role in the convergence *** to the real eigenvalues,the benefit of BiCGStab(L)compared to BiCGStab is shown to be modest in numerical ***-sparse(*** random)shadow residual turns out to be essential for the reliability of *** reliable updating scheme ensures the required tolerance is truly *** the best intermediate solution has no significant *** is to modify BiCGStab with a random shadow residual and the reliable updating scheme,especially in the regime of large P´eclet and small Damk¨ohler *** alternative option is IDR(S),which outperforms BiCGStab for problems with strong advection in terms of the number of matrix-vector *** MATLAB code used in the numerical experiments is available on GitLab:https://***/ChrisSchoutrop/krylov-adr,a C++implementation of IDR(S)is available in the Eigen linear algebra library:http://***.

关键词： BiCGStab IDR shadow residual advection-diffusion-reaction equation

Machine learning potentials for metal-organic frameworks using an incremental learning approach

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npj Computational Materials 2023年第1期9卷 2147-2154页

作者： Sander vandenhaute Maarten Cools-Ceuppens simon DeKeyser Toon Verstraelen Veronique van Speybroeck Center for Molecular Modeling Ghent UniversityTechnologiepark 469052 ZwijnaardeBelgium

Computational modeling of physical processes in metal-organic frameworks(MOFs)is highly challenging due to the presence of spatial heterogeneities and complex operating conditions which affect their *** functional theory(DFT)may describe interatomic interactions at the quantum mechanical level,but is computationally too expensive for systems beyond the nanometer and picosecond ***,we propose an incremental learning scheme to construct accurate and data-efficient machine learning potentials for *** scheme builds on the power of equivariant neural network potentials in combination with parallelized enhanced sampling and on-the-fly training to simultaneously explore and learn the phase space in an iterative *** only a few hundred single-point DFT evaluations per material,accurate and transferable potentials are obtained,even for flexible frameworks with multiple structurally different *** incremental learning scheme is universally applicable and may pave the way to model framework materials in larger spatiotemporal windows with higher accuracy.

关键词： framework incremental neural

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《话语与语境:从社会认知入手》介绍

当代语言学 2012年第3期14卷 317-319页

作者： Teun a.van dijk 王梅天津科技大学外国语学院英语系天津市300222

《话语与语境：从社会认知人手》（Discourse and Context：A Sociocognitive Approach）的作者是荷兰语言学家、话语分析家Teun *** dijk，由剑桥大学出版社2008年出版。全书除序言外共分五章。全书所使用的语料是英国议会下院2003年... 详细信息

《话语与语境：从社会认知人手》（Discourse and Context：A Sociocognitive Approach）的作者是荷兰语言学家、话语分析家Teun *** dijk，由剑桥大学出版社2008年出版。全书除序言外共分五章。全书所使用的语料是英国议会下院2003年关于对伊战争的辩论，尤其关注时任英国首相布莱尔的讲话内容。这部关于语境的专著旨在从社会认知角度探讨社会认知在控制话语的产生与理解的过程中所起到的关键作用，并提出了“语境模型”（context models）的概念。下面介绍其主要内容。

关键词：话语分析社会认知语境知人剑桥大学出版社英国首相 2008年语言学家

A Review of Self-healing Metals: Fundamentals, Design Principles and Performance

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Acta Metallurgica Sinica(English Letters) 2020年第9期33卷 1167-1179页

作者： Shasha Zhang Niels van dijk Sybrand van der Zwaag College of Materials and Technology Nanjing University of Aeronautics and AstronauticsNanjing 211106China Key Laboratory of Materials Preparation and Protection for Harsh Environment(Nanjing University of Aeronautics and Astronautics) Ministry of Industry and Information TechnologyNanjing 211106China Fundamental Aspects of Materials and Energy Group Faculty of Applied SciencesDelft University of TechnologyMekelweg 152629 JB DelftThe Netherlands Novel Aerospace Materials Group Faculty of Aerospace EngineeringDelft University of TechnologyKluyverweg 12629 HS DelftThe Netherlands School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China

Self-healing metals possess the capability to autonomously repair structural damage during service. While self-healing concepts remain challenging to be realized in metals and metallic systems due to the small atomic volume of the mobile atoms, the slow diffusion unless at high temperatures and the strong isotropic metallic bonds, the scientific interest has increased sharply and promising progress is obtained. This article provides a comprehensive and updated review on the developments and limitations associated with the various modes of potentially healable damage induced in metals and alloys, i.e., stressinduced damage, irradiation-induced damage in bulk materials and contact damage in corrosion protective coatings. The spontaneous intrinsic healing mechanisms not requiring external assistance other than the material operating at the right temperature and an assisted healing mechanism with external intervention are reviewed. Promising strategies to achieve self-healing in metals are identified. Finally, we give some prospects for future research directions in self-healing metals.

关键词： Metal Self-healing Creep behavior Fatigue damage Irradiation Coating

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社会认知、社会权势与社会话语

当代语言学 1991年第3期 17-24页

作者： Teun a.van dijk 施旭洛阳外国语学院

问题与目标本文要阐述的一个主要论点是,认知、权势和话语之间的联系应该以这三个概念的社会性来构建。从权势概念本质上具有的社会或政治属性来说,这一点显而易见。就请用和话语而言亦是如此。但是,对认知我们尚需一个更具社会性的研... 详细信息

问题与目标本文要阐述的一个主要论点是,认知、权势和话语之间的联系应该以这三个概念的社会性来构建。从权势概念本质上具有的社会或政治属性来说,这一点显而易见。就请用和话语而言亦是如此。但是,对认知我们尚需一个更具社会性的研究方法。认知的过程与心理表象并不是个人“纯粹”的思维现象,它有其重要的社会特性。这一点却被认知心理学家所忽视。

关键词：社会认知权势话语分析社会话语认知心理学社会权表象意识形态种族主义种族歧视

Enhanced reversibility of the magnetoelastic transition in(Mn,Fe)2(P,Si)alloys via minimizing the transition-induced elastic strain energy

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Journal of Materials Science & Technology 2022年第8期103卷 165-176页

作者： Xuefei Miao Yong Gong Fengqi Zhang Yurong You Luana Caron Fengjiao Qian Wenhui Guo Yujing Zhang Yuanyuan Gong Feng Xu Niels van dijk Ekkes Brück MIIT Key Laboratory of a.vanced Metallic and Intermetallic Materials Technology School of Materials Science and EngineeringNanjing University of Science and TechnologyNanjing 210094China Fundamental Aspects of Materials and Energy Department of Radiation Science and TechnologyDelft University of TechnologyMekelweg 15DelftJB 2629Netherlands Department of Physics Bielefeld UniversityBielefeld 33501Germany Helmholtz-Zentrum Berlin für Materialien und Energie Berlin 12489Germany College of Physics Nanjing University of Aeronautics and AstronauticsNanjing 210016China

Magnetocaloric materials undergoing reversible phase transitions are highly desirable for magnetic refrigeration applications.(Mn,Fe)_(2)(P,Si)alloys exhibit a giant magnetocaloric effect accompanied by a magnetoelastic transition,while the noticeable irreversibility causes drastic degradation of the magnetocaloric properties during consecutive cooling *** the present work,we performed a comprehensive study on the magnetoelastic transition of the(Mn,Fe)_(2)(P,Si)alloys by high-resolution transmission electron microscopy,in situ field-and temperature-dependent neutron powder diffraction as well as density functional theory calculations(DFT).We found a generalized relationship between the thermal hysteresis and the transition-induced elastic strain energy for the(Mn,Fe)_(2)(P,Si)*** thermal hysteresis was greatly reduced from 11 to 1 K by a mere 4 at.%substitution of Fe by Mo in the Mn_(1.15)Fe_(0.80)P_(0.45)Si_(0.55)*** reduction is found to be due to a strong reduction in the transition-induced elastic strain *** significantly enhanced reversibility of the magnetoelastic transition leads to a remarkable improvement of the reversible magnetocaloric properties,compared to the parent *** on the DFT calculations and the neutron diffraction experiments,we also elucidated the underlying mechanism of the tunable transition temperature for the(Mn,Fe)_(2)(P,Si)family,which can essentially be attributed to the strong competition between the covalent bonding and the ferromagnetic exchange *** present work provides not only a new strategy to improve the reversibility of a first-order magnetic transition but also essential insight into the electron-spin-lattice coupling in giant magnetocaloric materials.

关键词： Magnetocaloric effect (Mn Fe)2(P Si) Hysteresis Neutron diffraction