Results 101 to 110 of about 31,287 (167)

基于生态风险评价的黑龙江省生态安全格局构建

open access: yesShuitu Baochi Xuebao
目的为应对黑龙江省日趋严峻的城市化加快,景观破碎化、生物多样性减少等生态问题,推动生态系统健康发展。方法研究基于2000年、2010年、2020年土地利用数据,计算景观生态风险指数构建景观生态风险评价模型,对比分析生态风险对生态阻力的影响,选择2020年生态风险评价结果纳入综合阻力面。通过MSPA模型、景观连通性识别和筛选生态源地,并基于最小累积阻力模型(MCR)和电路理论提取生态廊道,结合生态风险分区构建多层次的生态安全格局。结果1)2000—2020年,黑龙江省的景观生态高风险区域整体呈下降趋势 ...
陈朝阳, 石淞, 李文
doaj   +2 more sources

From Tetracycline to Sulfamethoxazole: Photocatalytic Degradation and Mechanistic Insights in Aquatic Environments

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT The pollution caused by antibiotics to aquatic ecosystems is becoming increasingly serious, thus more effective treatment methods are urgently required. Although the photocatalytic degradation behavior of tetracycline (TC) is relatively well understood, sulfamethoxazole (SMZ), an emerging pollutant originating from large‐scale livestock ...
Yihang Yang   +6 more
wiley   +1 more source

Enhanced Energy Storage Performances of Ceramics Enabled by Local Lattice Disorder Based on High‐Entropy Strategy

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT With the depletion of energy resources and the vigorous development of renewable energy technologies, the demand for efficient energy storage technologies has become increasingly urgent. Dielectric ceramics feature ultrafast charge–discharge speed, but low energy density and inferior efficiency hinder device miniaturization.
Junxuan Liu   +14 more
wiley   +1 more source

Manipulating RE‐O Bonds Engineered Thermal/Oxygen Transport Characteristics of Monoclinic‐Prime RETaO4 High‐Entropy Ceramics

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Multifunctional thermal protective ceramic thermal/environmental barrier coatings (T/EBCs) are of great significance for applications of various high‐temperature components, and we propose an effective strategy for designing high‐entropy ceramics (HECs) as T/EBCs for SiC ceramic matrix composites (CMCs), where low thermal expansion ...
Qinshuo Wang   +7 more
wiley   +1 more source

野生动物相关专业学生生态道德现状及教育对策

open access: yes野生动物学报, 2017
采用分层随机抽样的方法对全国开设野生动物相关专业的6所高校的600名学生进行问卷调查。分析结果显示,野生动物相关专业学生生态道德素质总体处于“良好”水平,其中生态道德知识水平的平均得分为(3.60±0.50),生态道德意识为(4.15±0.62),学生生态道德行为平均分相对偏低,为(3.47±0.50); 但学生的生态道德教育需求未能得到很好地满足,教育状况处于“一般”水平(3.39±0.38),表明学生的生态道德教育还需进一步加强。生态道德素质与生态道德教育水平与学生的性别、年级有关。针对调查结果 ...
玄 凌 陈 洪 曾 赞 陈冬小
doaj  

Biomass‐Derived Laser‐Induced Graphene: From Precursor Chemistry to Device Integration

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Laser direct writing provides a mask‐free route for converting suitable carbon‐containing precursors into patterned, porous, and conductive laser‐induced graphene (LIG) networks. Although LIG was initially demonstrated mainly using aromatic synthetic polymers, such as polyimide, biomass precursors introduce renewable feedstocks with highly ...
Wanjun Yin   +10 more
wiley   +1 more source

Tailoring the Mechanical Properties of L‐DED‐Fabricated γ‐TiAl Alloys Through Heat Treatment: Correlating Microstructural Evolution With Fracture Mechanisms

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Laser‐directed energy deposition (L‐DED) offers a flexible route for fabricating γ‐TiAl components, but the as‐deposited microstructure requires post‐processing to overcome limited deformation capability. Here, an L‐DED Ti–48Al–2Cr–2Nb alloy was subjected to solution and solution‐aging treatments.
Mengya Chu   +6 more
wiley   +1 more source

[The blood ecosystem: from concept to practice]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
Cheng T, Wang H.
europepmc   +1 more source

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