检索结果-南通市图书馆

Understory seedlings of Quercus mongolica survive by phenological escape

Forest Ecosystems 2024年第2期11卷 236-246页

作者： Shixiong Wu Ying Liu Lulu He Wei Zeng qijing Liu College of Forestry Beijing Forestry UniversityBeijing100083China

Understanding understory seedling regeneration mechanisms is important for the sustainable development of temperate primary forests in the context of increasingly intense climate warming *** poor regeneration of dominant tree species,however,is one of the biggest challenges it faces at the ***,the regeneration of the shade-intolerant Quercus mongolica seedling is difficult in primary forests,which contrasts with the extreme abundance of understory seedlings in secondary *** mechanism behind the interesting phenomenon is still *** study used in-situ monitoring and nursery-controlled experiment to investigate the survival rate,growth performance,as well as nonstructural carbohydrate (NSC) concentrations and pools of various organ tissues of seedlings for two consecutive years,further analyze the understory light availability and simulate the foliage carbon (C) gain in the secondary and primary *** suggested that seedlings in the secondary forest had greater biomass allocation aboveground,height and specific leaf area (SLA) in summer,which allowed the seedling to survive longer in the canopy closure *** light availability and positive C gain in early spring and late autumn are key factors affecting the growth and survival of understory seedlings in the secondary forest,whereas seedlings in the primary forest had annual negative carbon *** the growing season,the total NSC concentrations of seedlings gradually decreased,whereas those of seedlings in the secondary forest increased significantly in autumn,and were mainly stored in roots for winter consumption and the following year's summer shade period,which was verified by the nursery-controlled experiment that simulated autumn enhanced light availability improved seedling survival rate and NSC *** conclusion,our results revealed the survival trade-off strategies of Quercus mongolica seedlings and highlighted the necessity of high light availability d

关键词： Carbon gain Nonstructural carbohydrate Recruitment Trade-off Biomass allocation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Vertically aligned montmorillonite aerogel-encapsulated polyethylene glycol with directional heat transfer paths for efficient solar thermal energy harvesting and storage

引用

International Journal of Minerals,Metallurgy and Materials 2024年第5期31卷 907-916页

作者： qijing Guo Cong Guo Hao Yi Feifei Jia Shaoxian Song Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources Ministry of EducationWuhan University of TechnologyWuhan 430070China School of Resources and Environmental Engineering Wuhan University of TechnologyWuhan 430070China Hubei Key Laboratory of Mineral Resources Processing and Environment Wuhan University of TechnologyWuhan 430070China

The conversion and storage of photothermal energy using phase change materials(PCMs)represent an optimal approach for harnessing clean and sustainable solar ***,we encapsulated polyethylene glycol(PEG)in montmorillonite aerogels(3D-Mt)through vacuum impregnation to prepare 3D-Mt/PEG composite *** used as a support matrix,3D-Mt can effectively prevent PEG leakage and act as a flame-retardant barrier to reduce the flammability of ***,3D-Mt/PEG demonstrates outstanding shape retention,increased thermal energy storage density,and commendable thermal and chemical *** phase transition enthalpy of 3D-Mt/PEG can reach 1.7.53 J/g and remains stable even after 50 heating-cooling ***,the vertical sheet-like structure of 3D-Mt establishes directional heat transport channels,facilitating efficient phonon *** configuration results in highly anisotropic thermal conductivities that ensure swift thermal responses and efficient heat *** study addresses the shortcomings of PCMs,including the issues of leakage and inadequate flame *** achieves the development and design of 3D-Mt/PEG with ultrahigh strength,superior flame retardancy,and directional heat ***,this work offers a design strategy for the preparation of high-performance composite *** 3D-Mt/PEG with vertically aligned and well-ordered array structure developed in this research shows great potential for thermal management and photothermal conversion applications.

关键词： montmorillonite aerogel polyethylene glycol phase change materials solar thermal energy storage flame retardant

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Assessing forest cover changes and fragmentation in the Himalayan temperate region: implications for forest conservation and management

引用

Journal of Forestry Research 2024年第4期35卷 128-141页

作者： Kaleem Mehmood Shoaib Ahmad Anees Akhtar Rehman Aqil Tariq qijing Liu Sultan Muhammad Fazli Rabbi Shao’an Pan Wesam Atef Hatamleh College of Forestry Beijing Forestry UniversityBeijing 100083People’s Republic of China Institute of Agriculture Sciences and Forestry University of SwatSwatPakistan Department of Forestry The University of AgricultureDera Ismail Khan 29050Pakistan Key Laboratory for Silviculture and Conservation of Ministry of Education Beijing Forestry UniversityBeijing 100083People’s Republic of China Beijing Key Laboratory of Precision Forestry Forestry CollegeBeijing Forestry UniversityBeijing 100083People’s Republic of China School of Environmental Studies China University of GeosciencesWuhan 430074People’s Republic of China Department of Wildlife Fisheries and AquacultureCollege of Forest ResourcesMississippi State UniversityStarkvilleMS 39762‑9690USA School of Management Tianjin University of CommerceTianjin 300134People’s Republic of China Department of Computer Science College of Computer and Information SciencesKing Saud UniversityP.O.Box 5117811543 RiyadhSaudi Arabia

This study comprehensively assessed long-term vegetation changes and forest fragmentation dynamics in the Himalayan temperate region of Pakistan from 1.89 to *** satellite images,including Landsat-5 TM and Landsat-8 Operational Land Imager(OLI),were chosen for subsequent assessments in October 1.89,2001.201. and *** classified maps of 1.89,2001.201. and 201. were created using the maximum likelihood ***-classification comparison showed an overall accuracy of 82.5%and a Kappa coefficient of 0.79 for the 201. *** revealed a drastic decrease in closed-canopy and open-canopy forests by 1.7.4 and 271.6 km^(2),respectively,and an increase in agriculture/farm cultivation by 1.1..8 km^(2).The two-way ANOVA test showed statistically significant differences in the area of various cover *** fragmentation was evaluated using the Landscape Fragmentation Tool(LFT v2.0)between 1.89 and *** large forest core(>2.00 km^(2))decreased from 1.9.4 to 296.7 km^(2),and a similar pattern was observed in medium forest core(1.00-2.00 km^(2))*** the contrary,the small core(1.00 km^(2))forest increased from 1.4.8 to 1.5.3 km^(2) in *** perforation area increased by 296.9 km^(2),and the edge effect decreased from 458.9 to 431.7 km^(2).The frequency of patches also increased by 1.9.1.km^(2).The closed and open canopy classes showed a decreasing trend with an annual rate of 0.58%and 1.35%,*** broad implications of these findings can be seen in the studied region as well as other global ecological *** serve as an imperative baseline for afforestation and reforestation operations,highlighting the urgent need for efficient management,conservation,and restoration *** on these findings,sustainable land-use policies may be put into place that support local livelihoods,protect ecosystem services,and conserve biodiversity.

关键词： Natural catastrophes Landsat Change detection Forest fragmentation Landscape fragmentation tool(LFT) Afforestation Reforestation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Big Kiss for You

引用

China Book International 2024年第5期 112-113页

作者： Chen qijing 无不详 Mumian Art Studio

Every day Granny Rabbit wakes up with no memory of what she did the day *** day,Sunny Mouse drops by *** for Granny Rabbit's hospitality,becomes her house *** do a lot of things happily ***,Granny Rabbit always forgets who Sunny Mouse is the next *** Mouse is not in the least worried,because he can find ways to help Granny Rabbit get to know him and love him over and over again,until one day,a miracle happens.

关键词： forget Rabbit before

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Changes in milk fat globule membrane proteins along lactation stage of Laoshan dairy goat

引用

Journal of Integrative Agriculture 2024年第5期23卷 1737-1748页

作者： Chuozi Liang Zhongna Yu Guangming Zhu Yixuan Li Xueheng Sun Hongning Jiang qijing Du Rongbo Fan Jun Wang Yongxin Yang Rongwei Han College of Food Science and Engineering Qingdao Agricultural UniversityQingdao 266109China Bathurst Future Agri-Tech Institute Qingdao Agricultural UniversityQingdao 266109China Haidu Cllege Qingdao Agricultural UniversityQingdao 266109China

The milk fat globule membrane(MFGM)is a complex structure with numerous functions,and its composition is affected by many *** have been few systematic investigations on goat MFGM proteome profiling during *** milk samples from 1. healthy dairy goats were obtained at six lactation time points for investigation of the MFGM proteome using both data-independent acquisition(DIA)and data-dependent acquisition(DDA)proteomics techniques combined with multivariate statistical *** the DIA method,890 variably abundant MFGM proteins were discovered throughout the lactation *** 1.to 240 d,butyrophilin subfamily 1.member A1.lipoprotein lipase,perilipin-2,and adipose triglyceride lipase were upregulated,while APOE,complement C3,clusterin,and IgG were ***,from 1.to 90 d,annexin A1.annexin A2,and antithrombin-ll were downregulated,then upregulated by d *** had a high degree of connectedness,indicating that it was a key protein,according to protein-protein interaction ***,our findings gave new insights into the biological features of MFGM protein in goat milk throughout lactation,which may aid in the creation of specialized MFGM products and infant formula.

关键词： goat milk fat globule membrane protein data-independent acquisition(DIA) data-dependent acquisition(DDA) lactation proteomics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Flexible pressure sensors with ultrahigh stress tolerance enabled by periodic microslits

引用

Microsystems & Nanoengineering 2024年第1期10卷 301-311页

作者： Song Wang Chenying Wang Yifan Zhao Yujing Zhang Yaxin Zhang Xiangyue Xu qijing Lin Kai Yao Yuheng Wang Feng Han Yu Sun Zhuangde Jiang State Key Laboratory for Manufacturing Systems Engineering International Joint Laboratory for Micro/Nano Manufacturing and Measurement TechnologiesSchool of Mechanical EngineeringXi’an Jiaotong UniversityXi’anChina State Key Laboratory for Manufacturing Systems Engineering International Joint Laboratory for Micro/Nano Manufacturing and Measurement TechnologiesSchool of Instrument Science and TechnologyXi’an Jiaotong UniversityXi’anChina The Faculty of Electrical Engineering and Computer Science Ningbo UniversityNingboChina Department of Mechanical and Industrial Engineering University of TorontoTorontoCanada

Stress tolerance plays a vital role in ensuring the effectiveness of piezoresistive sensing films used in flexible pressure ***,existing methods for enhancing stress tolerance employ dome-shaped,wrinkle-shaped,and pyramidal-shaped microstructures in intricate molding and demolding processes,which introduce significant fabrication challenges and limit the sensing *** address these shortcomings,this paper presents periodic microslits in a sensing film made of multiwalled carbon nanotubes and polydimethylsiloxane to realize ultrahigh stress tolerance with a theoretical maximum of 2.477 MPa and a sensitivity of 1..092 kPa−*** periodic microslits permit extensive deformation under high pressure(e.g.,400 kPa)to widen the detection ***,the periodic microslits also enhance the sensitivity based on simultaneously exhibiting multiple synapses within the sensing interface and between the periodic sensing *** proposed solution is verified by experiments using sensors based on the microslit strategy for wind direction detection,robot movement sensing,and human health *** these experiments,vehicle load detection is achieved for ultrahigh pressure sensing under an ultrahigh pressure of over 400 kPa and a ratio of the contact area to the total area of 32.74%.The results indicate that the proposed microslit strategy can achieve ultrahigh stress tolerance while simplifying the fabrication complexity of preparing microstructure sensing films.

关键词： robot shaped stress

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Engineering Shewanella-re duce d graphene oxide aerogel biohybrid to efficiently synthesize Au nanoparticles

引用

Journal of Materials Science & Technology 2024年第1期168卷 50-61页

作者： Baocai Zhang Shulin Shao Huan Yu qijing Liu Sicheng Shi Qingyuan Wu Zijie Wu Yiyu Feng Yifei Wang Xi Sun Deguang Wu Feng Li Hao Song Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering(Ministry of Education) Tianjin UniversityTianjin 300072China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China School of Materials Science and Engineering Tianjin UniversityTianjin 300350China College of Biological Engineering Tianjin Agricultural UniversityTianjin 300384China Department of Brewing Engineering Moutai InstituteLuban AveRenhuai 564507China

Biosynthesizing Au nanoparticles(AuNPs)from gold-bearing scraps provides a sustainable method to meet the urgent demand for ***,it remains challenging to efficiently biosynthesize AuNPs of which the diameter is less than 1. nm from a trace amount of Au^(3+)concentration at the level of tens ***,we constructed an exoelectrogenic cell(eCell)-conductive reduced-graphene-oxide aero-gel(rGA)biohybrid by assembling Shewanella sp.S1.SS1.as living biocatalyst and rGA as conductive ad-sorbent,in which Au^(3+)at trace concentrations would be enriched by the adsorption of rGA and reduced to AuNPs through the extracellular electron transfer(EET)of *** regulate the size of the synthe-sized AuNPs to 1. nm,the strain SS1.was engineered to enhance its EET,resulting in strain RS2(pYYD-P tac-ribADEHC&pHG1.-P_(bad)-omcC in SS1..Strain RS2 was further assembled with rGA to construct the RS2-rGA biohybrid,which could synthesize AuNPs with the size of 7.62±2.82 nm from 60 ppm Au^(3+)*** eCell-rGA biohybrid integrated Au^(3+)adsorption and reduction,which enabled AuNPs biosyn-thesis from a trace amount of Au^(3+).Thus,the required Au^(3+)ions concentration was reduced by one or two orders of magnitude compared with conventional methods of AuNPs *** work devel-oped an AuNPs size regulation technology via engineering eCell’s EET with synthetic biology methods,providing a feasible approach to synthesize AuNPs with controllable size from trace level of gold ions.

关键词： Au nanoparticles Exoelectrogenic cell(e-Cell) Shewanella Synthesis biology Extracellular electron transfer Reduced graphene oxide aerogel

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Physiological,transcriptome and gene functional analysis provide novel sights into cadmium accumulation and tolerance mechanisms in kenaf

引用

Journal of Environmental Sciences 2024年第3期137卷 500-514页

作者： Shan Cao Meng Wang Jiao Pan Dengjie Luo Samavia Mubeen Caijin Wang Jiao Yue Xia Wu qijing Wu Hui Zhang Canni Chen Muzammal Rehman Sichen Xie Ru Li Peng Chen Guangxi Key Laboratory of Agro-environment and Agric-products safety Key Laboratory of Plant Genetics and BreedingCollege of AgricultureGuangxi UniversityNanning 530004China State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources College of Life Science and TechnologyGuangxi UniversityNanning 530004China

Kenaf is considered to have great potential for remediation of heavy metals in ***,studies on molecular mechanisms of root Cd accumulation and tolerance are still *** this study,two differently tolerant kenaf cultivars were selected as materials and the physiological and transcriptomic effects were evaluated under Cd *** study showed that 200μmol/L CdCl_(2) treatment triggered the reactive oxygen species(ROS)explosion and membrane lipid *** with the Cd-sensitive cultivar‘Z',the Cd-tolerant cultivar‘F'was able to resist oxidative stress in cells by producing higher antioxidant enzyme activities and increasing the contents of ascorbic acid(AsA)and glutathione(GSH).The root cell wall of‘F'exhibited higher polysaccharide contents under Cd treatment,providing more Cd-binding *** were 3,439 differentially expressed genes(DEGs)that were co-regulated by Cd treatment in two *** biosynthesis and plant hormone signal transduction pathways were significantly enriched by functional annotation *** associated with pectin,cellulose,and hemi-cellulose metabolism were involved in Cd chelation of root cell wall;V-ATPases,ABCC3 and Narmp3 could participated in vacuolar compartmentalization of Cd;PDR1.was responsible for Cd effux;the organic acid transporters contributed to the absorption of Cd in *** genes might have played key roles in kenaf Cd tolerance and Cd ***,HcZIP2 was identified to be involved in Cd uptake and transport in *** findings provide a deeper understanding of the molecular pathways underlying Cd accumulation and detoxification mechanisms in kenaf.

关键词： Kenaf Cd stress Physiological Transcriptome HcZIP2

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

庭审事实重构中律师说服行为的功能语义构型

引用

现代外语 2024年第2期47卷 197-208页

作者：吴启竞大连理工大学辽宁省大连市116024

庭审事实重构中律师经验意义的传递是律师说服行为的基础,这些意义由功能语义构型表征。本研究结合系统功能语言学中的核心关系和律师说服行为的语境因素搭建分析框架,探讨庭审事实重构中律师说服行为的功能语义构型及其说服作用。通过... 详细信息

庭审事实重构中律师经验意义的传递是律师说服行为的基础,这些意义由功能语义构型表征。本研究结合系统功能语言学中的核心关系和律师说服行为的语境因素搭建分析框架,探讨庭审事实重构中律师说服行为的功能语义构型及其说服作用。通过对自建庭审话语语料库进行质性标注和量化分析,本研究发现了律师说服行为的六种典型功能语义构型,它们在特定庭审阶段中呈现出使用倾向。由于这些语义构型能够清晰表明律师争取审判人员认同的目的,适合所在庭审阶段且符合律师职业伦理规范,因此具有很好的说服作用。

关键词：事实重构律师说服行为功能语义构型核心关系

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Functions and Applications of Intestinal Symbiotic Microorganisms in Insects

引用

Asian Agricultural Research 2024年第8期16卷 23-28页

作者： Cong CHEN Junyu LIN Zhaoyan LIN Qianrou LI Jingyi HUANG qijing WU Qianhua JI Institute of Pomology/College of Life Sciences Zhaoqing UniversityZhaoqing 526061China

Insects represent a diverse group of organisms on earth that carry a vast array of symbiotic microorganisms in their *** microorganisms have established a complex and intimate symbiotic relationship with their host insects over an extended period of evolutionary *** population structure of intestinal symbiotic microorganisms in insects exhibits a high degree of diversity,with notable differences among insect ***,within the same insect species,the population structure of symbiotic microorganisms in specific intestinal sites demonstrates a certain degree of stability and *** symbiotic microorganisms perform various physiological functions in the host *** biological functions encompass nutrient and material metabolism and immune and protective mechanisms,which have significant effects on host insect longevity,development,and reproductive *** microorganisms have diverse applications,including pest control,bioenergy production,the development of insect resources,*** advancements in high-throughput sequencing technology have revealed a growing diversity and biological properties of these *** application of these techniques has significantly contributed to the advancement of research in the field of insect intestinal microbial research,providing researchers with powerful tools for a deeper understanding and utilization of these symbiotic *** study reviewed the research progress of insect intestinal microorganisms in three aspects:diversity,biological functions,and *** objective was to provide useful references and insights for further research and applications of insect intestinal microorganisms.

关键词： Symbiotic microorganisms Intestinal flora Population structure Diversity High-throughput sequencing

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：