Results 31 to 40 of about 9,343 (114)

Biodiversity‐driven spatial conservation planning to delineate temporally stable regions

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella   +5 more
wiley   +1 more source

温度对环氧树脂气——固界面电荷积聚的影响研究

open access: yesGaoya dianqi, 2023
环氧树脂在直流电场下易于积聚电荷造成局部电场畸变,进而诱发沿面闪络。文中建立了考虑离子产生、复合、迁移和扩散过程的电荷积聚模型,并在模型中计及了电导率的温度特性。研究了不同温度下气固界面电势、电场、电荷的分布及功率损耗变化,分析了温度对电荷行为和电场畸变率的影响。结果表明:表面电荷密度随温度升高而增大,三结合点处电荷密度最大;温度对切向电场的影响更大,随温度升高,电荷积聚的主要方式由表面传导向体传导转变;适当升温可以提高表面电荷积聚和消散速率,但高温会使表面电荷密度和泄漏电流增大,进而加剧畸变和损耗 ...
谢子豪   +5 more
doaj  

Community Assembly Mechanism of Woody Plants at Different Successional Stages in Karst Areas Based on Functional Traits and Phylogeny

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
This study reveals a shift in woody plant community assembly from competitive exclusion in early succession to habitat filtering in later stages within karst areas. Environmental distance (80.54%) contributed significantly more than geographical distance (9.95%), providing strong quantitative evidence that niche processes, particularly habitat ...
Hongfen Hu   +5 more
wiley   +1 more source

Lithium Deposition Behavior of Reconstituted Two‐Dimensional Zeolite Y Separators

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT During the operation of lithium‐ion batteries, uncontrollable lithium dendrite growth often occurs, resulting in internal short circuits and a significant reduction in cycle life, which poses a major obstacle to their practical application.
Yingying Deng   +9 more
wiley   +1 more source

紫色土区植物篱篱前淤积带土壤团聚体稳定性特征研究

open access: yesShuitu Baochi Xuebao, 2018
为探讨紫色土区植物篱篱前淤积带土壤团聚体的稳定性,试验以该淤积带土壤为研究对象,设置了10°对照小区(T1)、10°新银合欢植物篱小区(T2)、10°香根草植物篱小区(T3)、15°对照小区(T4)、15°香根草植物篱小区(T5)等5个处理,采用萨维诺夫法测定了风干团聚体和水稳性团聚体的组成状况,以保存机率、稳定性指数、PAD(结构体破坏率)、MWD(平均重量直径)、GMD(几何平均直径)、MWSSA(平均重量比表面积)、CS(偏度系数)和CE(峰凸系数)等为评价指标,分析了不同坡度 ...
王润泽   +8 more
doaj  

Cavity‐Confined Indium Single‐Atom Catalysts Enable Localized Electron Enrichment for Highly Efficient and Selective Photocatalytic CO2 Reduction

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Single‐atom catalysts are attractive for CO2 photoreduction due to their maximized atomic utilization and tunable electronic structures. In this study, indium (In) single atoms were incorporated into graphitic carbon nitride (CN) through an impregnation‐assisted thermal polycondensation strategy.
Xueying Guo   +6 more
wiley   +1 more source

Unpacking Welfare Deservingness Theory: Evidence From the Perceived Deservingness of Gig Workers

open access: yesPolicy Studies Journal, Volume 54, Issue 2, May 2026.
ABSTRACT The theory of welfare deservingness provides valuable insights into the social legitimacy of welfare programs and the principles underlying policy design. In examining the question of who deserves what and why, established deservingness criteria emphasize that individuals demonstrating motivation to work (“reciprocity”) are typically perceived
Juhyun Bae
wiley   +1 more source

Developing HMME‐Conjugated NIR‐II Activated Carbon Dots Nanospray for the Treatment of MRSA Biofilm Infections in Diabetic Wound via PTT/CDT/SDT

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Diabetic wound infections are a common complication of diabetes, which severely impact patients' quality of life. Effective treatment of diabetic wound infections remains one major challenge in the clinic, partially due to the formation of bacterial biofilm and antibiotic resistance.
Liang Zhou   +8 more
wiley   +1 more source

SF6直流装置中支撑绝缘子冲击闪络特性的研究——静电积聚的影响

open access: yesGaoya dianqi, 1984
本文着重介绍用于SF6直流装置中的支撑绝缘予冲击闪络特性的影响因素和由先期施加直流高压形成的电荷积聚对支撑绝缘子冲击闪络水平的影响。试验表明,静电积聚对支撑绝缘子冲击闪络水平的影响有极性效应,即与直流同极性的冲击闪络水平变化不大,而与直流异极性的冲击闪络水平有所下降。下降程度与直流电压大小,持续时间等有关。这种极性效应可用表面电荷积聚的影响来解释。试验逐表明,具有波纹状表面的支撑绝焯子由于闪络路径与电荷积聚的部位不同因此受影响很小。
余存仪
doaj  

模拟地下水咸化对高寒湿地土壤团聚体稳定性和有机碳含量的影响

open access: yesShuitu Baochi Xuebao, 2022
为探究高寒湿地地下水咸化对土壤团聚体稳定性和有机碳库的影响, 以巴音布鲁克高寒湿地季节性地表积水区和常年干燥区土壤为研究对象, 设对照、微咸水、咸水和盐水4个矿化度, 地下水NaCl含量分别为0, 2, 6, 23 g/L, 使用湿筛的方法将土壤团聚体分成不同的粒径。结果表明: 地下水矿化度升高对0—10 cm土壤团聚体分布影响不大, 对10—30 cm土壤团聚体有显著影响。在10—30 cm土层中, >2 mm土壤团聚体质量百分比随着矿化度升高先降低再升高, 在2 g/L处理下降至最低1%~14 ...
愚广灵   +5 more
doaj  

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