Results 1 to 10 of about 8,099,068 (351)

Point-source scalar turbulence [PDF]

Journal of Fluid Mechanics, 2007
The statistics of a passive scalar randomly emitted from a point source is investigated analytically for the Kraichnan ensemble. Attention is focused on the two-point equal-time scalar correlation function, a statistical indicator widely used both in experiments and in numerical simulations.
A. CELANI, M. MARTINS AFONSO, MAZZINO, ANDREA   +2 more
openaire   +6 more sources

Point‐Source Extraction with MOPEX

Publications of the Astronomical Society of the Pacific, 2005
20 pages, 13 Postscript figures, accepted for publication in ...
Makovoz, David, Marleau, Francine R.
openaire   +3 more sources

Visual detection of point source targets [PDF]

, 1966
Visual detection of point source targets in simulated star field ...
Shea, R. A., Summers, L. G.
core   +2 more sources

The impacts of water level fluctuations from paddy fields and aquaculture ponds on wetland habitats for wintering waterbirds: Implications for wetland management

Frontiers in Environmental Science, 2022
The distribution and composition of wetland habitats for wintering waterbirds are heavily influenced by water level fluctuations. Through polder construction and aquaculture activities, paddy fields and aquaculture ponds have decreased the lateral ...
Bo Cheng, Bo Cheng, Xiudi Zhu, Xiudi Zhu, Juha M. Alatalo, Jessica Gordon, Hongqing Li, Hongqing Li, Bo Jiang, Bo Jiang, Wei Yin, Wei Yin   +11 more
doaj   +1 more source

Effect of landscape pattern on river water quality under different regional delineation methods: A case study of Northwest Section of the Yellow River in China

Journal of Hydrology: Regional Studies, 2023
Study region: A typical arid irrigation area of the Yellow River, Ningxia, Northwest China. Study focus: At present, few studies have evaluated the effects of nested watershed and runoff process on the relationships between landscape patterns and water ...
Wei Pei, Qiuliang Lei, Ying Zhao, Qiyu Xu, Xinzhong Du, Jiafa Luo, Miaoying An, Hua Ma, Bingqian Fan, Weiwen Qiu, Hongbin Liu   +10 more
doaj   +1 more source

Biochar reduces colloidal phosphorus in leachate by regulating phoD- and phoC-harboring microbial communities during drying/rewetting cycles

Biochar, 2023
Drying and rewetting (DRW) events cause the release of colloidal phosphorus (Pcoll, 1–1000 nm) in leachate, and biochar is considered an effective inhibitor; however, the microbial mechanism remains elusive.
Xiaochun Wang, Hongnuo Ge, Yunying Fang, Chunlong Liu, Kamel M. Eltohamy, Zekai Wang, Xinqiang Liang   +6 more
doaj   +1 more source

Effects of water hyacinth biochar on lettuce growth in cadmium-contaminated soil

Frontiers in Soil Science, 2022
Recently, the excessive propagation of water hyacinth has led to serious ecological and environmental problems; thereby, its treatment and disposal are of great significance.
Chunhuo Zhou, Chunhuo Zhou, Yali Wang, Li’e Wei, Huajun Huang, Chenglong Yu, Chenglong Yu, Xin Yin, Xin Yin   +8 more
doaj   +1 more source

Enhancing rice production sustainability and resilience via reactivating small water bodies for irrigation and drainage

Nature Communications, 2023
Rice farming threatens freshwater resources, while also being increasingly vulnerable to drought due to climate change. Rice farming needs to become more sustainable and resilient to climate change by improving irrigation drainage systems.
Sisi Li, Yanhua Zhuang, Hongbin Liu, Zhen Wang, Fulin Zhang, Mingquan Lv, Limei Zhai, Xianpeng Fan, Shiwei Niu, Jingrui Chen, Changxu Xu, Na Wang, Shuhe Ruan, Wangzheng Shen, Menghan Mi, Shengjun Wu, Yun Du, Liang Zhang   +17 more
doaj   +1 more source

Adaptability analysis and model development of various LS-factor formulas in RUSLE model: A case study of Fengyu River Watershed, China

Geoderma, 2023
The slope length and slope steepness factor (LS-factor) formula in the Revised Universal Soil Loss Equation (RUSLE) has a considerable level of uncertainty due to the existence of multiple methods. In this study, four commonly used formulas for the slope
Tianpeng Zhang, Qiuliang Lei, Xinzhong Du, Jiafa Luo, Miaoying An, Bingqian Fan, Ying Zhao, Shuxia Wu, Yonggang Ma, Hongbin Liu   +9 more
doaj   +1 more source

Research perspectives on paddy field systems: ecological functions and environmental impacts

International Journal of Agricultural Sustainability, 2020
Paddy is an important artificial wetland ecosystem related to sustainable development of agriculture and environment. According to 12,276 paddy-related publications in SCIE database during 1997–2016, this study revealed the global paddy research trends ...
Yanhua Zhuang, Hongbin Liu, Liang Zhang, Sisi Li   +3 more
doaj   +1 more source