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soil resilience assessment using soil profile descriptions and Analytic Hierarchy Process in Mediterranean mountains considering diverse fire occurrences

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Journal of Mountain science 2024年第8期21卷 2517-2532页

作者： Jesús RODRIGO-COMINO Departamento de Análisis Geográfico Regional y Geografía Física Facultad de Filosofía y LetrasCampus Universitario de CartujaUniversidad de GranadaGranada 18071Spain

Wildfires are complex natural phenomena that exert significant impacts on landscapes,societies,and *** the concept of resilience is crucial in mitigating its possible negative impacts,as it involves preparing for,responding to,and recovering from *** research aims to demonstrate the utility of in situ soil profile description in assessing land use resilience using an Analytic Hierarchy Process(AHP)through an expert panel *** study examines a catchment located in the Balearic Islands,considering two fire occurrences(once and twice),comparing abandoned agricultural terraces and natural *** results demonstrated that the priority ranking of variables to assess soil profile resilience against wildfires,determined by a panel of 10 experts,identified horizon depth(25.1%),slope inclination(21.5%),and hydrological connectivity(16.6%)as the most crucial *** variables,such as number and size of roots,structure of pedal soil material,size class structure,and rock fragments,also contributed to resilience but to a lesser extent,with scores ranging from 5.7%to 9.6%.Analyzing the priorities established by the experts using AHP,the results showed that the least resilient soil horizon was H1 of the control hillslope,especially under high and low connectivity processes,which aligned with the loss of superficial soil horizons after one and two *** showed greater changes in resilience after occurring wildfires compared to terraces,with the most significant alterations occurring after the second wildfire *** study addresses a significant knowledge gap in the field by highlighting the interconnectedness of wildfires,resilience,and land use,providing insights into land management strategies for wildfire-prone regions.

关键词： soil profiles soil geography Wildfires AHP Land management Expert panel survey

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数据中心纳入全国碳排放权交易市场机制研究

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中国电机工程学报 2024年第14期44卷 5562-5573,I0010页

作者：朱子恒张策丁肇豪张达清华大学能源环境经济研究所北京市海淀区100084 清华大学智能产业研究院北京市海淀区100084 新能源电力系统国家重点实验室(华北电力大学) 北京市昌平区102206

当前,我国数据中心产业发展迅速,耗电量同步快速增长,导致了大量的间接温室气体排放。在“碳达峰、碳中和”目标提出的背景下,将数据中心纳入全国碳排放权交易市场(简称全国碳市场)可以引导数据中心提升能效和使用清洁电力。该文参考全... 详细信息

当前,我国数据中心产业发展迅速,耗电量同步快速增长,导致了大量的间接温室气体排放。在“碳达峰、碳中和”目标提出的背景下,将数据中心纳入全国碳排放权交易市场(简称全国碳市场)可以引导数据中心提升能效和使用清洁电力。该文参考全国碳市场运行基本原则,从数据中心各组成部分的运行特征出发,提出数据中心纳入全国碳市场后的碳排放配额分配方法、碳排放核算方法、数据质量控制与绿色电力交易等管理机制,并提出纳入全国碳市场的数据中心责任主体与规模边界建议。

关键词：数据中心全国碳排放权交易市场机制设计电力负荷

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数字孪生驱动的桥梁智能建造方法

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遥感学报 2024年第5期28卷 1340-1349页

作者：朱军朱庆祝兵王波梁策西南交通大学地球科学与工程学院成都611756 西南交通大学土木工程学院成都610031 中铁大桥科学研究院有限公司武汉430034 中国铁道科学研究院集团有限公司电子计算技术研究所北京100081

智能化是桥梁建设的重要方向,数字孪生是实现桥梁智能建造的有效途径。数字孪生将现实环境中桥梁的结构、状态和行为等映射到虚拟环境,为透彻理解和精准控制桥梁建造过程提供新手段。本文首先分析了桥梁及其环境高精度数字孪生与桥梁智... 详细信息

智能化是桥梁建设的重要方向,数字孪生是实现桥梁智能建造的有效途径。数字孪生将现实环境中桥梁的结构、状态和行为等映射到虚拟环境,为透彻理解和精准控制桥梁建造过程提供新手段。本文首先分析了桥梁及其环境高精度数字孪生与桥梁智能建造背景及发展趋势,然后提出了桥梁建造全过程数字孪生构建方法,探讨了空天地一体化监测数据关联融合、数字孪生场景智能构建与增强可视化、过程动态仿真与智能预测等关键技术,最后以复杂艰险山区大型桥梁建造为例开展案例应用分析,本文方法可望为复杂环境大型桥梁工程智能建造提供有效的理论指导和关键技术支撑。

关键词：遥感虚拟地理环境桥梁智能建造数字孪生仿真预测智能建模

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Litterfall production modeling based on climatic variables and nutrient return from stands of Eucalyptus grandis Hill ex Maiden and Pinus taeda L.

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Journal of Forestry Research 2024年第5期35卷 26-36页

作者： Andrés Baietto Andrés Hirigoyen Jorge Hernández Amabelia del Pino Forest Department Faculty of AgronomyUniversity of the Republic12900 MontevideoUruguay National Research Program of Forest Production National Agriculture Research InstituteINIA97000 TacuarembóUruguay soil and Water Department Faculty of AgronomyUniversity of the Republic12900 MontevideoUruguay

Native grasslands in the Pampas of south America are increasingly being replaced by Eucalyptus and Pinus *** short rotation regimes used for the stands require high nutrient levels,with litterfall being a major source of nutrient *** model the litterfall production using climatic variables and assess the nutrient return in 14-year-old Eucalyptus grandis and Pinus taeda stands,we measured litter production over 2 years,using conical litter traps,and monitored climatic *** temperature,accumulated precipitation,and mean maximum vapor pres-sure deficit at the seasonal level influenced litterfall produc-tion by ***;seasonal accumulated precipitation and mean maximum temperature affected litterfall by *** regression tree modeling based on these climatic vari-ables had great accuracy and predictive power for ***(N=33;MAE(mean absolute error)=0.65;RMsE(root mean square error)=0.91;R^(2)=0.71)and ***(N=108;MAE=1.50;RMsE=1.59;R^(2)=0.72).The nutrient return followed a similar pattern to litterfall deposition,as well as the order of importance of macronutrients(***:Ca>N>K>Mg>P;***:N>Ca>K>Mg>P)and micronutrients(*** and ***:Mn>Fe>Zn>Cu)in both *** study constitutes a first approximation of factors that affect litterfall and nutrient return in these systems.

关键词： Afforestation Litterfall Nutrient recycling Climate modeling Myrtaceae Pinaceae

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Cross-method Analysis of Corotation Radii Data set for spiral Galaxies

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Research in Astronomy and Astrophysics 2024年第7期24卷 95-110页

作者： V.s.Kostiuk A.A.Marchuk A.s.Gusev sternberg Astronomical Institute Lomonosov Moscow State UniversityUniversitetsky pr.13119234 MoscowRussia central(Pulkovo)Astronomical Observatory Russian Academy of SciencesPulkovskoye chaussee 65/1196140 St.PetersburgRussia saint Petersburg state University Universitetsky pr.28198504 St.PetersburgRussia

A corotation radius is a key characteristic of disk galaxies that is essential to determine the angular speed of the spiral structureΩ_p,and therefore understand its *** the literature,there are plenty of methods to estimate this value,but do these measurements have any consistency?In this work,we collected a data set of corotation radius measurements for 547 galaxies,300 of which had at least two *** initial analysis reveals that most objects have rather inconsistent corotation radius ***,a significant fraction of galactic disks is distinguished by a large error coverage and almost uniform distribution of *** findings do not have any relation to spiral type,Hubble classification,or presence of a *** other reasons,obtained results could be explained by the transient nature of spirals in a considerable part of *** have made our collected data sample publicly available,and have demonstrated on one example how it could be useful for future research by investigating a winding time value for a sample of galaxies with possible multiple spiral arm patterns.

关键词： galaxies fundamental parameters-galaxies kinematics and dynamics-galaxies structure

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李清照词首译考辨及其创译在美国的传承——从朱迪特·戈蒂耶到怀特尔、雷克思罗斯

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外语导刊 2024年第2期47卷 119-126,F0003页

作者：葛文峰淮北师范大学外国语学院安徽淮北235000

学界普遍认为,西方世界译介李清照词始于1867年戈蒂耶的《白玉诗书》。通过梳理译史、详细考辨之后发现,西译李清照词的源头既非戈蒂耶1867年初版的《白玉诗书》,亦非其1902年增订、易名的《玉书》,而是1901年的戈氏文章“几位中国伟大... 详细信息

学界普遍认为,西方世界译介李清照词始于1867年戈蒂耶的《白玉诗书》。通过梳理译史、详细考辨之后发现,西译李清照词的源头既非戈蒂耶1867年初版的《白玉诗书》,亦非其1902年增订、易名的《玉书》,而是1901年的戈氏文章“几位中国伟大诗人和女诗人李易安”。以创造性翻译策略而闻名于世的戈蒂耶法译李清照词,后经怀特尔转译至美国,并被诗人译者雷克思罗斯继承并发扬光大,在美国诗坛产生了重要影响。从戈蒂耶到怀特尔,再到雷克思罗斯,西方世界的李清照词创意翻译风尚得以传承、确立。

关键词：李清照词创意翻译白玉诗书朱迪特·戈蒂耶怀特尔雷克思罗斯

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具有全球竞争力的开放创新生态建设

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科学学研究 2024年第9期42卷 1979-1987页

作者：操友根任声策杜梅安徽大学商学院安徽合肥230601 同济大学上海国际知识产权学院上海200092

百年未有之大变局下,科技革命加速演进,逆全球化主义回潮,局部冲突与动荡频发,新冠疫情叠加冲击,全球创新生态开放面临重大挑战。基于对开放式创新生态概念、结构、理论基础与实践挑战的系统回顾,以集成电路产业为研究对象,厘清其全球... 详细信息

百年未有之大变局下,科技革命加速演进,逆全球化主义回潮,局部冲突与动荡频发,新冠疫情叠加冲击,全球创新生态开放面临重大挑战。基于对开放式创新生态概念、结构、理论基础与实践挑战的系统回顾,以集成电路产业为研究对象,厘清其全球竞争态势与创新布局,并聚焦欧盟与美国两大芯片法案,分析其出台动机和关键内容;同时,进一步围绕构成主体、构建要素及开放性对其深入解读,研判全球创新生态开放的趋势,明晰其发展困境,最后提出促进中国构建具有全球竞争力的开放创新生态的对策建议。

关键词：创新全球化开放创新生态全球竞争力芯片法案

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基于sGs模型的茶盘造型设计研究

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机械设计 2024年第S1期41卷 235-238页

作者：郑策常瑜天津商业大学艺术学院天津300134

为进一步拓展产品设计路径,基于管理学中的sGs(门径管理系统,stage-Gate-system的简称)模型开发产品设计流程,面向用户需求展开sGs模型在产品设计中的应用。以茶盘造型的概念设计为例,结合sGs模型的产品开发方法,优化设计程序,从而解决... 详细信息

为进一步拓展产品设计路径,基于管理学中的sGs(门径管理系统,stage-Gate-system的简称)模型开发产品设计流程,面向用户需求展开sGs模型在产品设计中的应用。以茶盘造型的概念设计为例,结合sGs模型的产品开发方法,优化设计程序,从而解决茶具设计的适用性、美观性及安全性等问题,最终,通过导入sGs模型,提高了茶具设计的用户评价度,为同类产品的造型设计提供参考。

关键词：产品设计 sGs模型茶盘造型概念设计

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Co-enhancement of thermal conduction and radiation through morphologies controlling of graphene functional layer for chip thermal management

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Nano Research 2024年第10期17卷 8885-8892页

作者： shuting Cheng Kun Wang shichen Xu Yi Cheng Ruojuan Liu Kewen Huang Hao Yuan Wenjuan Li Yuyao Yang Fushun Liang Fan Yang Kangyi Zheng Zhiwei Liang ce Tu Mengxiong Liu Xiaomin Yang Jingnan Wang Xuzhao Gai Yuejie Zhao Xiaobai Wang Yue Qi Zhongfan Liu state Key Laboratory of Heavy Oil Processing College of ScienceChina University of PetroleumBeijing 102249China centre for Nanochemistry Beijing Science and Engineering Centre for NanocarbonsBeijing National Laboratory for Molecular SciencesCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China Beijing Graphene Institute(BGI) Beijing 100095China College of Energy Soochow Institute for Energy and Materials Innovations(SIEMIS)Jiangsu Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy TechnologiesSoochow UniversitySuzhou 215006China Department of Chemistry College of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijing 100048China

With the continuous advancements in electronics towards downsizing and integration,efficient thermal dissipation from chips has emerged as a critical factor affecting their lifespan and operational *** fan-less chip cooling system has two critical interfaces for thermal transport,which are the contact interface between the base and the chip dominated by thermal conduction,and the surface of the fins dominated by thermal *** different thermal transfer modes of these two critical interfaces pose different requirements for thermal management *** the study,a novel approach was proposed by developing graphene thermal transport functional material whose morphology could be intentionally designed via reformed plasmaenhanced chemical vapor deposition(PECVD)methods to meet the diverse requirements of heat transfer ***,graphene with multilevel branching structure of vertical graphene(BVG)was fabricated through the hydrogenassisted PECVD(H_(2)-PECVD)strategy,which contributed a high emissivity of~*** was deposited on the fins’surface and functioned as the radiation enhanced layer to facilitate the rapid radiation of heat from the heat sinks into the surrounding ***,the well-oriented vertical graphene(OVG)was successfully prepared through the vertical electric field-assisted PECVD process(EF-PECVD),which showed a high directional thermal conductivity of~53.5 W·m^(-1)·K^(-1).OVG was deposited on the contact interface and functioned as the thermal conduction enhanced layer,allowing for the quick transmission of heat from the chip to the heat *** this design concept,the two critical interfaces in the chip cooling system can be jointly enhanced,resulting in a remarkable cooling efficiency enhancement of~30.7%,demonstrating that this novel material possessed enormous potential for enhancing the performance of cooling ***,this research not only provided new design concepts for the cooling system

关键词： chip thermal management thermal conduction thermal radiation graphene morphology control

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Dynamic and electrical responses of a curved sandwich beam with glass reinforced laminate layers and a pliable core in the presence of a piezoelectric layer under low-velocity impact

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Applied Mathematics and Mechanics(English Edition) 2024年第1期45卷 155-178页

作者： N.sHAHVEIsI s.FELI Department of Mechanical Engineering Razi UniversityKermanshah ***Iran

The dynamic responses and generated voltage in a curved sandwich beam with glass reinforced laminate(GRL)layers and a pliable core in the presence of a piezoelectric layer under low-velocity impact(LVI)are *** current study aims to carry out a dynamic analysis on the sandwich beam when the impactor hits the top face sheet with an initial *** the layer analysis,the high-order shear deformation theory(HsDT)and Frostig's second model for the displacement fields of the core layer are *** classical non-adhesive elastic contact theory and Hunter's principle are used to calculate the dynamic responses in terms of *** order to validate the analytical method,the outcomes of the current investigation are compared with those gained by the experimental tests carried out by other researchers for a rectangular composite plate subject to the *** element(FE)simulations are conducted by means of the ABAQUs *** effects of the parameters such as foam modulus,layer material,fiber angle,impactor mass,and its velocity on the generated voltage are reviewed.

关键词： analytical model piezoelectric layer curved sandwich beam glass reinforced laminate(GRL) pliable core low-velocity impact(LVI) classical non-adhesive elastic contact theory

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