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Hydrogeochemical Characterization and Appraisal of Groundwater Quality in Yisr River Catchment, Blue Nile River Basin, Ethiopia, by Using the GIS, WQI, and Statistical Techniques

Abebaw Demelash, Abunu Atlabachew, Muralitharan Jothimani, Abel Abebe • Journal of Chemistry (2023)

Groundwater is a primary drinking, agricultural, domestic, and nondomestic water source in Ethiopia’s Yisr River watershed of the Blue Nile River basin. There has been no systematic investigation of the hydrogeochemical properties of ground...

DOAJ Open Access (DOAJ) DOI: 10.1155/2023/8199000

Assessment of sediment yield and accumulation in reservoir: The case of Gibe One Reservoir, Southwestern Ethiopia

Hailu Gisha Kuma, Ermias Mekonnen Chinasho, Abrham Asha Tolke • Heliyon (2024)

Soil erosion and sediment buildup are the factors that speed up the decline in capacity and function of reservoirs, agricultural products, and water resources. In order to simulate sediment and runoff and map high sediment-yielding sub-basi...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.heliyon.2024.e36315

In-Situ Monitoring and Prediction of Frost Growth on Plant Leaves Based on Dielectric Spectrum Analysis and an SWT-SSA-LSTM Model

Huan Song, Lijun Wang, Yuguo Gao, Shuman Guo et al. • AgriEngineering (2026)

Accurate and in-situ monitoring of frost growth on plant leaves is crucial for disaster prevention in smart agriculture. To address the limitations of traditional methods in quantification and continuity, this study proposes a novel monitor...

DOAJ Open Access (DOAJ) DOI: 10.3390/agriengineering8020067

Drip irrigation impacts on the root zone soil environment and enrichment characteristics of heavy metals in soybean

Yuhao Zhang, Renjie Hou, Qiang Fu, Tianxiao Li et al. • Agricultural Water Management (2023)

Soil heavy metal pollution seriously endangers the soil ecological environment and food safety production. In this study, drip irrigation tests with four irrigation frequencies were conducted by controlling the lower limit of the soil matri...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.agwat.2023.108483

The effect of chili pepper-Chinese chives intercropping on rhizosphere microorganisms and root-stem endophytes

Nan Sun, Nan Sun, Yuxin Wang, Yuxin Wang et al. • Frontiers in Microbiology (2025)

IntroductionThis study adopted the intercropping pattern opepper (Capsicum annuum L.) and Chinese chives (Allium tuberosum), combined with high-throughput sequencing and microbial network analysis, to systematically reveal the mechanisms of...

DOAJ Open Access (DOAJ) DOI: 10.3389/fmicb.2025.1716326

Coastal wave-energy attenuation by artificial wooden fences deployed for mangrove restoration: an experimental study

Anping Shu, Jiapin Zhu, Baoshan Cui, Le Wang et al. • Frontiers in Marine Science (2023)

By offering natural protection along offshore wetlands, mangroves play a crucial role in providing great ecological and economic benefits to local communities. However, mangroves are currently facing an increasing threat of decline worldwid...

DOAJ Open Access (DOAJ) DOI: 10.3389/fmars.2023.1165048

Experimental Study on the Effect of the Angle of Attack on the Flow-Induced Vibration of a Harbor Seal’s Whisker

Yuhan Wei, Chunning Ji, Dekui Yuan, Liqun Song et al. • Fluids (2023)

A harbor seal’s whisker is able to sense the trailing vortices of marine organisms due to its unique three-dimensional wavy shape, which suppresses the vibrations caused by its own vortex-shedding, while exciting large-amplitude and synchro...

DOAJ Open Access (DOAJ) DOI: 10.3390/fluids8070206

A three-pillar approach to assessing climate impacts on low flows

G. Laaha, J. Parajka, A. Viglione, D. Koffler et al. • Hydrology and Earth System Sciences (2016)

The objective of this paper is to present a framework for assessing climate impacts on future low flows that combines different sources of information, termed pillars. To illustrate the framework three pillars are chosen: (a) extrapolation ...

DOAJ Open Access (DOAJ) DOI: 10.5194/hess-20-3967-2016

Adaptive Tracking Control of Anchoring Unit for Pipeline Intelligent Plugging Robot Based on Improved Deep Deterministic Policy Gradient

Tingting Wu, Yaxin Liu, Laihe Qi, Pu Wang et al. • Machines (2026)

A pipeline intelligent plugging robot (PIPR) is an important tool in subsea pipeline maintenance and emergency repair. Precise position-tracking control is crucial for the in-pipe plugging operation of a PIPR. The anchoring module is the ke...

DOAJ Open Access (DOAJ) DOI: 10.3390/machines14060675

A Theory for Estuarine Delta Formation with Finite Beach Length under Sediment Supplied from the River

Dinh Van Duy, Hitoshi Tanaka, Magnus Larson, Nguyen Trung Viet • Journal of Marine Science and Engineering (2022)

Analytical solutions for a one-line model for shoreline changes are employed to investigate the formation of two wave-dominated river delta coastlines, along with a small-scale laboratory experiment. Since the present analytical solution ca...

DOAJ Open Access (DOAJ) DOI: 10.3390/jmse10070947

Influence of check dams on water and sediment processes and deposition patterns under simulated rainfall conditions

Zhiwei Cui, Peng Li, Tian Wang, Shaobo Xue et al. • Geoderma (2024)

The Loess Plateau in China has the highest soil erosion and water loss rates in the world. Therefore, check dams, which are more useful engineering measures, have been established to improve soil and water conservation in small watershed. T...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.geoderma.2023.116758

Study on Damage Behavior and Anti-Explosion Performance of Steel Fiber-Reinforced Cellular Concrete Under Underwater Contact Explosion

Hu Huang, Shubo Dai, Kelei Cao, Changxing Tang et al. • Buildings (2026)

To explore the damage mitigation mechanism of steel fiber-reinforced cellular concrete (SFR-CC) under underwater explosion loading, this study systematically analyzes two key variables: steel fiber volume fraction (0.5%, 1.0%, 1.5%, and 2.0...

DOAJ Open Access (DOAJ) DOI: 10.3390/buildings16101975

Reservoir ecological operation considering outflow variations across different time scales

Yibo Wang, Pan Liu, Ming Dou, He Li et al. • Ecological Indicators (2021)

The regulation of reservoirs contributes huge socioeconomic benefits to society at the expense of inducing adverse effects on downstream ecosystems. The reservoir average outflow (such as monthly) can be out of the ecological flow range whi...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.ecolind.2021.107582

Reusing Effluent Water in Drainage Ditches for Irrigation in Hilly Regions

SHAO Peiyin, LI Yalong, XIONG Yujiang, YUAN Niannian et al. • Guan'gai paishui xuebao (2023)

【Objective】 Most hilly regions in China are short of freshwater resources and recycling the effluent water in their drainage ditches is a way to relieve this pressure and improve water use efficiency. This paper investigates how reusing the...

DOAJ Open Access (DOAJ) DOI: 10.13522/j.cnki.ggps.2022315

Influence of strain measurement methods on crack initiation and crack damage thresholds of shale

Rongchao Xu, Liang Gao, Yiding Jin, Yibo Wang et al. • Geomechanics and Geophysics for Geo-Energy and Geo-Resources (2025)

Abstract The crack initiation stress (σ ci) and crack damage stress (σ cd) are two important stress thresholds for describing the progressive failure process of rocks. Accurately obtaining these two stress thresholds is crucial for analyzin...

DOAJ Open Access (DOAJ) DOI: 10.1007/s40948-025-00940-8

Arbuscular mycorrhizal fungi contribute to wheat yield in an agroforestry system with different tree ages

Xu Qiao, Xu Qiao, Tao Sun, Tao Sun et al. • Frontiers in Microbiology (2022)

Intercropping achieved through agroforestry is increasingly being recognized as a sustainable form of land use. In agroforestry, the roots of trees and crops are intermingled, and their interactions and the production of exudates alter the ...

DOAJ Open Access (DOAJ) DOI: 10.3389/fmicb.2022.1024128

Identifying Key Factors Associated with the Spatiotemporal Dynamics of Fish Assemblages in Subtropical River-Type Reservoir Ecosystems: Implications for Fishery Management and Conservation

Chengjie Yin, Rongzhen Zhang, Zewen Feng, Xiaoning Shi et al. • Animals (2026)

Characterizing the spatiotemporal patterns of fish communities in subtropical river-type reservoirs provides useful baseline information for fisheries stewardship and aquatic ecosystem monitoring. This work investigated fish assemblages acr...

DOAJ Open Access (DOAJ) DOI: 10.3390/ani16182892

Air pollution mapping and variability over five European cities

Karine Sartelet, Jules Kerckhoffs, Eleni Athanasopoulou, Lya Lugon et al. • Environment International (2025)

Mapping urban pollution is essential for assessing population exposure and addressing associated health impacts. High urban concentrations are due to the proximity of sources such as traffic or residential heating, and to urban density with...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.envint.2025.109474

Operation strategies of n-DAMO and Anammox process based on microbial interactions for high rate nitrogen removal from landfill leachate

Wen-Bo Nie, Guo-Jun Xie, Jie Ding, Lai Peng et al. • Environment International (2020)

Nitrate/nitrite-dependent anaerobic methane oxidation (n-DAMO) coupling to Anaerobic ammonium oxidation (Anammox) provides an opportunity for simultaneous nitrogen removal and methane emissions mitigation from wastewater. However, to achiev...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.envint.2020.105596