Results 211 to 220 of about 22,146 (252)

Soil Contamination Around the Copper Smelter and the Use of Soil Microarthropods as Bioindicators

Land Degradation &Development, EarlyView.
ABSTRACT Soil contamination from smelter emissions, including heavy metals (HM), rare earth elements (REEs), and sulfur, poses a significant threat to soil ecosystems. In the immediate vicinity of the Głogów Copper Smelter, HM concentrations were several times higher than in more distant forest stands.
Jacek Malica, Cezary K. Urbanowski, Mirosław Mleczek, Krzysztof Turczański, Przemysław Niedzielski, Anna Wierzbicka, Agnieszka Andrzejewska, Radosław Witkowski, Maciej Skorupski, Emilia Pers‐Kamczyc, Jacek Kamczyc   +10 more
wiley   +1 more source

Enhancing Soil Quality and Ecosystem Multifunctionality to Increase Maize Yield in Saline‐Alkali Soil: A Multisource Nitrogen Fertilization Strategy

Land Degradation &Development, EarlyView.
ABSTRACT The positive effect of multisource nitrogen fertilization strategies on improving soil fertility and crop yield in saline‐alkali soil has been evaluated. However, the responses of soil quality and ecosystem functions to multisource nitrogen fertilization strategies, and their roles in regulating maize yields in saline‐alkali soils remain ...
Yupeng Jing, Lanying Zhang, Meiying Liu, Yongqing Wang, Haiwen Duan, Bin Zhao, Weini Wang, Hongjin Liu, Zhigang Qiao, Jie Zhou, Xia Zhang   +10 more
wiley   +1 more source

Asymmetric Responses of Ecosystem Health to Urbanization in a Typical Karst City: Spatiotemporal Patterns and Driving Mechanisms in Guilin, China

Land Degradation &Development, EarlyView.
ABSTRACT Urban expansion can substantially reshape ecosystem structure and functioning, especially in ecologically fragile Karst landscapes. Clarifying how ecosystem health (EH) responds to urbanization and identifying the factors that drive spatial variation in EH are important for regional sustainability.
Jinlong Hu, Zhenhong Bin, Yingxue Wang
wiley   +1 more source

Seasonal Dynamics of Soil Multitrophic Biodiversity, Co‐Occurrence Network and Assembly Mechanisms Under Typical Vegetation Restoration Patterns in Karst Region

Land Degradation &Development, EarlyView.
ABSTRACT Previous studies often overlooked the dynamic effects of karst vegetation restoration on soil multi‐trophic biodiversity and the underlying community‐assembly mechanisms. To fill this gap, we performed a seasonal comparative analysis of soil biodiversity, co‐occurrence network architecture, and assembly processes across three representative ...
Xiang Zhang, Yingliang Liu, Yao Kai, Lihong Lu, Aoli Zhang, Zhaoxia Zeng, Fuping Zeng, Xunyang He, Hao Zhang   +8 more
wiley   +1 more source

Comparative evaluation of multi-influence factor, Shannon Entropy, and frequency ratio techniques for groundwater potential mapping in the Maze and Zenti catchments, Omo Basin, Ethiopia.

Heliyon
Oyda Y, Hatiye SD, Jothimani M.
europepmc   +1 more source

Metasurface‐Based Polarization‐Controlled Generation of 128‐Dimensional Vector Vortex Combs

Laser &Photonics Reviews, EarlyView.
The generation and continuous control of 128‐dimensional vector vortex combs using a single metasurface is reported. This work creates a class of structured light that uniquely integrates ultrahigh dimensionality with vector properties, and represents a crucial step toward on‐chip, reconfigurable generators for ultrahigh‐dimensional vector structured ...
Jiaqi Wang, Wenxi Wang, Wen Chen
wiley   +1 more source

A Fully‐Connected Chip‐Integrated Reconfigurable Mode‐Pairing Quantum Key Distribution Network

Laser &Photonics Reviews, EarlyView.
This work constructs a fully connected reconfigurable chip‐integrated quantum key distribution network via the mode‐pairing protocol. Hybrid ECL and WSS chips cut wavelength and port overhead, realizing arbitrary‐user key sharing with merely two wavelengths.
Xiao‐Lei Jiang, Wei Gao, Yan‐Yang Zhou, Yu Zhou, Yu‐Yao Guo, Yi‐Fei Lu, Yuan‐Chao Yu, Yang Wang, Jia‐Ji Li, Chun Zhou, Hong‐Wei Li, Liang‐Jun Lu, Lin‐Jie Zhou, Jian‐Ping Chen, Wan‐Su Bao   +14 more
wiley   +1 more source

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Redistributing algorithms and Shannon’s Entropy

Aequationes mathematicae, 2022
Shannon's entropy is one of the most popular measures of disorder. Together with the concept of permutation entropy, they are used to quantify the uncertainty and disorder of a time series. This is based on the appearance of ordinal patterns. There are several approaches to calculate the tuples rearrangement of the components with the ups and downs ...
Flavia-Corina Mitroi-Symeonidis, Eleutherius Symeonidis   +1 more
openaire   +3 more sources

Symmetry and the Shannon entropy

Information Sciences, 1981
Abstract Some equivalent systems of postulates characterizing the Shannon entropy of a finite discrete complete probability distribution are proposed.
Prem Nath, Man Mohan Kaur
openaire   +1 more source