نتایج جستجو برای: quality variations

تعداد نتایج: 927433  

Journal: :Journal of limnology and freshwater fisheries research 2022

Water quality in freshwaters are declining worldwide owing to increases human populations, expansion of agricultural activities, and climate change. There regions the world that understudied little no baseline information exists related water quality, such as Africa. We focused our work on Bua River, Malawi which supports sustenance fishing basic needs for local communities. A portion river has...

Journal: :Frontiers in Environmental Science 2022

The COVID-19 pandemic that emerged in Wuhan city of China December 2019 has adversely impacted the health and economy, society, other significant spheres human environment. severely economic activities, especially industrial production, transportation, tourism, hoteling industries. present study analyses impact varying severity lockdowns activities during various phases on water quality Yamuna ...

Journal: :Frontiers in Environmental Science 2023

Tracking the evolution of air pollutants has a critical impact on our ability to further improve quality, which have been extensively studied in North China Plain (NCP), Yangtze River Delta (YRD) and Pearl (PRD) regions, but remain poorly characterized Guizhou located east Yunnan-Guizhou Plateau. Here, we analyzed spatiotemporal variations trends six criteria pollutants, i.e., inhalable particl...

Journal: :Mechatronics 2022

In the field of large scale robotic, which is often remotely operated, having direct interaction can be disruptive for applications such as moving heavy loads or 3D printing. A Cable-Driven Parallel Robot (CDPR) used here in physical Human–Robot Interactions (pHRI) with an admittance-based control strategy to physically interact a user tele-operation co-manipulation mode. experiment involving p...

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