Results 21 to 30 of about 7,435,956 (295)

松散承压含水层水位的同震响应实验与数值模拟

Dizhen xuebao, 2023
为深入理解井水位同震响应机理，本文开展了向完整井-松散含水层系统输入由不同频率和振幅（加速度）组成的正弦波荷载的振动台实验。以实验模型为物理模型，建立了振动作用下松散承压含水层中孔隙水压力响应的流固耦合模型和含水层水流与井流的相互作用模型，并运用多物理场耦合模拟软件COMSOL Multiphysics对实验过程进行了数值模拟。实验中观测到的四种典型水位变化形态与野外场地同震井水位变化形态相似。数值模拟结果显示，本研究建立的数学模型能较好地反映松散承压含水层中孔隙水压力和水位的响应情况 ...
Zeyu Zhai, Hongbiao Gu, Yan Zhang, Huimin Kong, Baoming Chi   +4 more
doaj   +1 more source

Improvement of ambient air quality and the synergistic governance of CO2 and pollutant emissions in Shenyang

Scientific Reports
Identifying key targets for air pollution prevention and control while achieving synergy between pollution reduction and carbon mitigation is crucial for maximizing benefits to human health and the climate.
Huan Zhao, Nan Wang, Min Liu, Jiahong Liu, Xuebin Sun, Shuxin Wang, Zhe Li, Dongqing Jin, Jiayin Wang, Mumu Gao   +9 more
doaj   +1 more source

High-performance flocculant from g-C₃N₄-mediated cross-linking of chitosan and polyacrylamide for turbid water treatment

Carbohydrate Polymer Technologies and Applications
Flocculation is crucial for water purification, but conventional flocculants are hampered by inefficiency and environmental concerns. This study develops a novel chitosan-polyacrylamide (CS-PAM) flocculant innovatively synthesized using graphitic carbon ...
Liu Shi, Sihui Lin, Yixuan Gong, Xiangrong Wei, Jie Ruan, zhongxiao zhou   +5 more
doaj   +1 more source

Biochar Addition with Water and Fertilization Reduction Increases Soil Aggregate Stability of 0–60 cm Soil Layer on Greenhouse Eggplant in Mollisols

Agronomy, 2023
Biochar application affects the soil organic carbon (SOC) content and distribution, which is relevant to facility agriculture and soil aggregates. However, how the fertilization management of facility agriculture affects the SOC content and aggregate ...
Sisi Xu, Meng Zhou, Yimin Chen, Yueyu Sui, Xiaoguang Jiao   +4 more
doaj   +1 more source

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source

Microbiome analysis in Asia’s largest watershed reveals inconsistent biogeographic pattern and microbial assembly mechanisms in river and lake systems

iScience
Summary: Microorganisms are critical to the stability of aquatic environments, and understanding the ecological mechanisms of microbial community is essential.
Xi Liu, Lu Zhang, Yingcai Wang, Sheng Hu, Jing Zhang, Xiaolong Huang, Ruiwen Li, Yuxin Hu, Huaiying Yao, Zhi Wang   +9 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

Effects of bacillus on continuous cropping of sugar beets and their rhizosphere microbial community

Scientific Reports
Sugar beet is a vital sugar-producing crop, and continuous cropping poses a significant threat to its growth, leading to a decline in yield and quality.
Yanchun Sun, Qun Song, Zenghao Wang, Youkai Gao, Liuli Wei, Yuguang Wang, Rui Chen, Gui Geng   +7 more
doaj   +1 more source

Concentrations and Sources of Arsenic and Fluoride in High-Temperature Geothermal Water from Yangbajing, Xizang

Yankuang ceshi
Arsenic (As) and fluoride (F) are two typical harmful elements with high concentrations in Yangbajing high-temperature geothermal water, and the release of As and F from geothermal sources to the surface or near-surface environment can be further ...
Geng XU, Fangjing XIAO, Xiaomei CUI, Duo BU, Qiangying ZHANG   +4 more
doaj   +1 more source