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Impact of Pollutant Concentration and Particle Deposition on the Radiative Flow of Casson-Micropolar Fluid between Parallel Plates

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 665-690页

作者： Ghaliah Alhamzi Badr Saad t.Alkahtani Ravi Shanker Dubey vinutha Kalleshachar Neelima Nizampatnam Department of Mathematics and Statistics College of ScienceImam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh11564Saudi Arabia Department of Mathematics College of ScienceKing Saud UniversityRiyadh11989Saudi Arabia Department of Mathematics Amity School of Applied SciencesAmity University RajasthanJaipur302002RajasthanIndia Department of Studies in Mathematics Davangere UniversityDavangere577002India Department of Electronics and Communication Engineering Amrita School of EngineeringAmrita Vishwa VidyapeethamBengaluru560035India

Assessing the behaviour and concentration of waste pollutants deposited between two parallel plates is essential for effective environmental *** the effectiveness of treatment methods in reducing pollution scales is made easier by analysing waste discharge *** waste discharge concentration analysis is useful for assessing how effectively wastewater treatment techniques reduce pollution *** study aims to explore the Casson micropolar fluid flow through two parallel plates with the influence of pollutant concentration and thermophoretic particle *** explore the mass and heat transport features,thermophoretic particle deposition and thermal radiation are *** governing equations are transformed into ordinary differential equations with the help of suitable similarity *** Runge-Kutta-Fehlberg’s fourthfifth order technique and shooting procedure are used to solve the reduced set of equations and boundary *** integration of a neural network model based on the Levenberg-Marquardt algorithm serves to improve the accuracy of predictions and optimize the analysis of *** outcomes are displayed to analyze the characteristics of the relevant dimensionless parameters in the current *** reveal that concentration upsurges as the micropolar parameter *** concentration reduces with an upsurge in the thermophoretic *** upsurge in the external pollutant source variation and the local pollutant external source parameters enhances mass *** surface drag force declines for improved values of porosity and micropolar parameters.

关键词： Micropolar fluid thermal radiation porous medium thermophoretic particle deposition waste discharge concentration

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美丽中国建设的制度体系研究

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生态经济 2025年第1期41卷 13-18页

作者：董战峰周佳生态环境部环境规划院北京100041

制度体系是美丽中国建设的根本保障。改革开放四十多年以来,我国基本建立了一套行之有效的生态文明制度体系,但与全面推进美丽中国建设的要求相比还存在较大差距。论文分析了美丽中国建设的制度基础和面临的关键挑战,明确了促进美丽中... 详细信息

制度体系是美丽中国建设的根本保障。改革开放四十多年以来,我国基本建立了一套行之有效的生态文明制度体系,但与全面推进美丽中国建设的要求相比还存在较大差距。论文分析了美丽中国建设的制度基础和面临的关键挑战,明确了促进美丽中国建设的制度体系思路,提出了健全生态环境空间管控、责任体系、市场体系等十大重点任务,为全面推进美丽中国建设提供坚实支撑。

关键词：美丽中国生态文明制度环境治理现代化重点任务

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公共交往“频道”的校准:媒介化时代我国公共政治交往话语风格的偏误与匡正

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新闻与传播评论 2025年第1期78卷 35-45页

作者：董浩骆正林南京林业大学人文社会科学学院江苏南京210037 南京林业大学文旅产业与城市传播研究中心江苏南京210037 南京大学新闻传播学院江苏南京210023

在当今的媒介化时代,随着互联网等新媒体技术对国家、社会不断的赋权与公共政治的崛起,公共交往在越来越便捷、普遍、常态化、多元的同时,也出现了一定的问题。其中,最为突出的问题是公共交往过程中组织机构与公民话语风格的偏误问题。... 详细信息

在当今的媒介化时代,随着互联网等新媒体技术对国家、社会不断的赋权与公共政治的崛起,公共交往在越来越便捷、普遍、常态化、多元的同时,也出现了一定的问题。其中,最为突出的问题是公共交往过程中组织机构与公民话语风格的偏误问题。鉴于此,文章立足于政治媒介化的时代背景,在公共政治视域下,借用话语理论,以我国公共政治交往话语实践的经验与教训为分析样本,以无责漫谈与话语独白为考察中心,探讨匡正当下公共政治交往话语风格偏误的方法与进路。研究认为,组织机构与公民应该积极、主动地进行话语转换,向彼此靠近,消减组织机构话语的话语独白与公民话语的无责漫谈,加速两者之间的话语循环与流通。具体举措包括:话语实践效果的想象与预测、话语的技术化处理、“中间人”的话语斡旋、话语的场域转化、话语的流通与循环、话语的破圈传播、话语的理性规制、话语中社会意见的冶炼、话语实践智慧的提炼等。

关键词：公共交流交流的无奈话语风格偏误无责漫谈话语独白话语理论

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Dendritic spine degeneration:a primary mechanism in the aging process

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Neural Regeneration Research 2025年第6期20卷 1696-1698页

作者： Gonzalo Flores Leonardo Aguilar-Hernández Fernado García-Dolores Humberto Nicolini Andrea Judith vázquez-Hernández Hiram tendilla-Beltrán Instituto de Fisiología Benemérita Universidad Autónoma de Puebla(BUAP)PueblaMexico Instituto de Ciencias Forenses(INCIFO) Tribunal Superior de Justicia de la Ciudad de México(TSJCDMX).Mexico CityMexico Instituto Nacional de Medicina Genómica(INMEGEN) Mexico CityMexico

Recent reports suggest that aging is not solely a physiological process in living beings;instead, it should be considered a pathological process or disease(Amorim et al., 2022). Consequently, this process involves a wide range of factors, spanning from genetic to environmental factors, and even includes the gut microbiome(GM)(Mayer et al., 2022). All these processes coincide at some point in the inflammatory process, oxidative stress, and apoptosis, at different degrees in various organs and systems that constitute a living organism(Mayer et al., 2022;AguilarHernández et al., 2023).

关键词： aging process stress

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从领域到属性:亲环境行为测量的问题及建议

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心理科学进展 2025年第1期33卷 163-175页

作者：张玥董艺佳蒋奖华北电力大学经济与管理学院北京102206 香港城市大学社会与行为科学系香港北京师范大学心理学部应用实验心理北京市重点实验室心理学国家级实验教学示范中心(北京师范大学)北京100875

已有研究开发了大量的亲环境行为测量工具,涉及量表、个体行为范式和群体博弈范式,其中大多数测量工具是基于行为领域设计,节约、出行、垃圾处理、消费和公域行为是5个最常被提及的领域。现有依据行为领域的亲环境行为测量方式存在标准... 详细信息

已有研究开发了大量的亲环境行为测量工具,涉及量表、个体行为范式和群体博弈范式,其中大多数测量工具是基于行为领域设计,节约、出行、垃圾处理、消费和公域行为是5个最常被提及的领域。现有依据行为领域的亲环境行为测量方式存在标准化程度低及测量结果推广性受限的问题,这主要是由于缺少对行为属性这一行为决定性特征的关注。未来研究应基于行为属性选用和开发标准化测量工具,并选取多种真实行为作为效标进行效度检验。

关键词：亲环境行为行为领域行为属性测量

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Deciphering fungal metabolon coupling tandem inverse-electrondemand Diels-Alder reaction and semipinacol rearrangement for the biosynthesis of spiro polycyclic alkaloids

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Science China Chemistry 2025年第1期68卷 288-296页

作者： Shuai Liu Wen-Qiang Xu Ying-tong Di Man-Cheng tang Ding-Kang Chen Ming-Ming Cao Yao-Wen Chang Hong-Yu tang Chun-Mao Yuan Jun-Bo Yang Zhi-Li Zuo Han Guo Zi-Fei Xu Ying Zeng Yun-dong Wu Xiao-Jiang Hao Key Laboratory of Phytochemistry and Natural Medicines (Chinese Academy of Sciences) Kunming Institute of Botany Chinese Academy of Sciences University of Chinese Academy of Sciences Lab of Computational Chemistry and Drug Design State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Shenzhen Bay Laboratory State Key Laboratory of Microbial Metabolism School of Life Sciences & Biotechnology Shanghai Jiao Tong University State Key Laboratory of Functions and Applications of Medicinal Plants Guizhou Medical University Molecular Biology Experimental Center Germplasm Bank of Wild Species in Southwest China Kunming Institute of Botany Chinese Academy of Sciences Yunnan Key Laboratory for Wild Plant Resources Kunming Institute of Botany Chinese Academy of Sciences Research Unit of Chemical Biology of Natural Anti-virus Products Chinese Academy of Medical Sciences

In the intricate process of natural product biosynthesis, a metabolon can enhance metabolic flux by associating sequential enzymes. A fungal metabolon, comprising of flavin-dependent monooxygenase Spe F and P450 monooxygenase Spe G, is identified in the biosynthesis of spiro polycyclic alkaloids(+)-notoamide B and its diastereomer(+)-versicolamide B. Using notoamide E as a substance, Spe F/Spe G metabolon can control the stereoselectivity of its 2,3-epoxidation, followed by hydrogen atom ion at C-17 to generate reactive epoxide tau-m A with dienyl iminium unit. Subsequently,(+)-notoamide B and(+)-versicolamide B are produced via tandem nonenzymatic inverse-electron-demand Diels-Alder reaction and semipinacol rearrangement. this provides the first example of metabolon in the biosynthesis of spiro-prenylated indole alkaloids.

关键词： metabolon Diels-Alder reaction semipinacol rearrangement biosynthesis notoamides spiro polycyclic alkaloids

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Facile synthesis of the dodecahydridododecaborate (B12H122-) from borane Lewis base adducts

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Science China Chemistry 2025年

作者： Yi Jing Xin-Ran Liu Xing-Hua Wang Hui Han Sha-Sha Liang Xi-Meng Chen dong-Hui Wei Lai-Sheng Wang Xue-Nian Chen College of Chemistry Zhengzhou University School of Chemistry and Chemical Engineering Henan Key Laboratory of Boron Chemistry and Advanced MaterialsHenan Normal University Department of Chemistry Brown University

Polyhedral boranes are a class of well-known boron molecular clusters widely used in energy,chemistry,medicine,and materials science because of their unique physical and chemical *** efforts have been made in the past decades to find more effective synthetic methods for this important class of boron ***,existing synthetic methods suffer from low efficiency and low ***,we report a facile one-pot synthesis of[（CH3）3S]2B12H12with moderate yields at mild *** mechanisms for the multi-step chemoselective synthesis of B12H122-without other by-products are elucidated based on theoretical results and our previous *** Lewis base used in B–H bond condensation reaction,which acts as a hydrogen or to balance the newly generated polyhedral borane charges,is proposed and studied in *** current study has led to a more effective and selective synthetic method for B12H122-and has also implicated the syntheses of other new polyhedral boranes.

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建设工程全过程造价管理策略研究

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价值工程 2025年第1期44卷 15-18页

作者：伏冬冬淮浙电力有限责任公司凤台发电分公司淮南232131

本研究旨在探讨建设工程项目全过程造价管理策略,以提高项目的经济效益和管理效率。研究内容涵盖了项目的决策、设计、招投标、施工及竣工各阶段的造价管理目标与策略。通过设计阶段风险评估与成本控制、招投标策略、施工进度与成本动... 详细信息

本研究旨在探讨建设工程项目全过程造价管理策略,以提高项目的经济效益和管理效率。研究内容涵盖了项目的决策、设计、招投标、施工及竣工各阶段的造价管理目标与策略。通过设计阶段风险评估与成本控制、招投标策略、施工进度与成本动态控制及竣工结算审核与后评估等方法,构建了全面的造价管理体系。研究结果表明,现代化先进技术以及先进工具,可以有效降低项目成本风险,提高造价管理的精度和效率。通过建立完善的审核和反馈机制,可以及时发现并解决各阶段的问题,优化项目管理流程。本研究为建设工程项目的造价管理提供了科学的理论依据和实践指导,有助于推动行业的管理水平提升,实现绿色建筑和可持续发展的目标。

关键词：建筑工程工程全过程造价管理工程效益

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Recent theoretical progress in the development of perovskite photovoltaic materials

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Journal of Energy Chemistry 2018年第3期27卷 637-649页

作者： Xin Zhou Joanna Jankowska Hao dong Oleg v.Prezhdo College of Environment and Chemical Engineering Dalian University.Dalian 116622.LiaoningChina Department of Chemistry University of Southern CaliforniaLos Angeles 90089California.United States Institute of Physics.Polish Academy of Sciences Warsaw 02-668.Poland School of Chemistry and Chemical Engineering Liaoning Normal UniversityDalian 116029LiaoningChina

Since the seminal work by Kojima et al. in 2009, solar cells based on hybrid organic-inorganic perovskites have attracted considerable attention and experienced an exponential growth, with photovoltaic efficiencies as of today reaching above 22%. Despite such an impressive development, some key scientific issues of these materials, including the presence of toxic lead, the poor long-term device stability under heat and humidity conditions, and the anomalous hysteresis of the current-voltage curves shown by various solar cell devices, still remain unsolved and constitute an important focus of experimental and theoretical researchers throughout the world. Density functional theory calculations have been successfully applied to exploring structural and electronic properties of semiconductors, complementing the experimental results in search and discovery of novel functional materials. In this review, we summarize the current progress in perovskite photovoltaic materials from a theoretical perspective. We discuss design of lead-free perovskite materials, humidity-induced degradation mechanisms and possible origins for the observed solar cell hysteresis, and assess future research directions for advanced perovskite solar cells based on computational materials design and theoretical understanding of intrinsic properties.

关键词： Solar cells Perovskite materials Density functional theory

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transport mechanism in chemically reactive hybrid nanofluid flow containing gyrotactic micro-organisms over a curved oscillatory surface

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 177-192页

作者： M.NAvEED M.IMRAN t.ASGHAR Z.ABBAS Department of Mathematics Division of Science and TechnologyUniversity of Education Department of Mathematics The Islamia University of Bahawalpur

this paper examines the transport analysis, including both heat transfer and mass transfer, in hybrid nanofluid flow containing gyrotactic microorganisms towards a curved oscillatory surface. the influence of magnetic fields is also inspected in terms of their physical characteristics. to depict the phenomena of transport, modified versions of both Fick's and Fourier's laws are used. Additionally, the characteristics of both heterogeneous and homogeneous chemical reactions are also incorporated. Utilizing a curvilinear coordinate system, the flow problem is formulated as partial differential equations(PDEs)for momentum, concentration, microorganism field, and energy. An analytical solution to the obtained flow equations is achieved utilizing the homotopy analysis method(HAM).the effects of significant flow parameters on the pressure and microorganism fields, velocity, oscillation velocity, concentration, and temperature distributions are shown via graphs. Furthermore, the variations in skin friction, mass transfer rate, heat transfer rate, and local motile number due to different involved parameters are presented in tables and are analyzed in detail. Graphical results indicate that the curves of velocity and temperature fields are enhanced as the values of the solid volume fraction variables *** is also verified that the concentration rate field decreases as the values of the homogeneous reaction strength parameter and the radius of curvature parameter increase, and it increases with the Schmidt number and the heterogeneous reaction strength *** outcomes show a favorable response of the motile number to advanced values of the Peclet number, the Schmidt number, the microorganism difference parameter, and the bio-convective Lewis number.

关键词： Peclet number

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