Results 161 to 170 of about 907,541 (362)

Preparation and Electrocatalytic Performance of Bi-Modified Quartz Column Particle Electrode for Phenol Degradation

Journal of Chemistry, 2015
Bismuth oxide (Bi2O3) and its composites have good electrocatalytic performance. Quartz column is a good kind of catalyst carrier with the characteristics of high mechanical strength and good stability.
Jiguo Huang, Haitao Chen, Shuo Pang, Gang Liu, Huanyu Cui, Lili Dong, Xingjuan Liu   +6 more
doaj   +1 more source

Are the results of the groundwater model robust? [PDF]

arXiv, 2019
De Graaf et al. (2019) suggest that groundwater pumping will bring 42--79\% of worldwide watersheds close to environmental exhaustion by 2050. We are skeptical of these figures due to several non-unique assumptions behind the calculation of irrigation water demands and the perfunctory exploration of the model's uncertainty space.
arxiv  

The Interplay of Public Administration and Community Resilience During the COVID‐19 Pandemic—A Rapid Scoping Review

Conflict Resolution Quarterly, EarlyView.
ABSTRACT This rapid scoping review examines the interplay between public administration and community resilience during the COVID‐19 pandemic, focusing on the type of research conducted, emerging themes in resilience studies, and key lessons learned. The findings show that research in the Global North has primarily examined resilience at the city level,
Daniela Gröschke
wiley   +1 more source

Evaluation of ecological geological environment carrying capacity and analysis of driving mechanisms based on normal cloud model and geodetector model

Scientific Reports
The Luoyang area of the Yellow River Basin, as a typical resource-based city, its special industrial structure and complex geological structure make the ecological and geological environment of the area extremely fragile.
Rongkun Dai, Changlai Xiao, Xiujuan Liang, Lin Jia, Yi Jia, Jiarui Yao, Weifei Yang, Jiang Zhang, Linzuo Zhang, Weifeng Li   +9 more
doaj   +1 more source

Photocatalytic activity of Cu2O/ZnO nanocomposite for the decomposition of methyl orange under visible light irradiation

Science and Engineering of Composite Materials, 2019
ZnO is modified by Cu2O by the process of precipitation and calcination. X-ray diffraction has shown that Cu2O/ZnO catalysts are made of highly purified cubic Cu2O and hexagonal ZnO.
Wang Xian-sheng, Zhang Yu-duo, Wang Qiao-chu, Dong Bo, Wang Yan-jia, Feng Wei   +5 more
doaj   +1 more source

Effect of structure and lithological heterogeneity on the correlation coefficient between the electric–hydraulic parameters of the aquifer, Eastern Desert, Egypt

Applied Water Science, 2019
Discovering, studying and determining the hydrogeoelectrical properties of the aquifer at the new area by using resistivity sounding parameters are difficult and need high accuracy in measurements and interpretation.
A. I. Ammar, K. A. Kamal
doaj   +1 more source

A groundwater market model [PDF]

arXiv
We introduce the problem of groundwater trading, capturing the emergent groundwater market setups among stakeholders in a given groundwater basin. The agents optimize their production, taking into account their available water rights, the requisite water consumption, and the opportunity to trade water among themselves.
arxiv  

Examining the Financial Impact of Biodiversity‐Related Reputational Disasters

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This research investigates the reaction of financial markets to biodiversity‐related corporate events, utilising an EGARCH model to assess the implications on stock returns and volatility. Results reveal that markets significantly respond to these events, demonstrating heightened sensitivity and volatility that underscore the financial ...
Erdinc Akyildirim, Shaen Corbet
wiley   +1 more source

Global-scale estimation of diffuse groundwater recharge : model tuning to local data for semi-arid and arid regions and assessment of climate change impact [PDF]

, 2005
Groundwater recharge is the major limiting factor for the sustainable use of groundwater. To support water management in a globalized world, it is necessary to estimate, in a spatially resolved way, global-scale groundwater recharge.
Döll, Petra, Flörke, Martina
core  

Electrocatalytic CN Coupling: Advances in Urea Synthesis and Opportunities for Alternative Products

ChemSusChem, EarlyView.
This review explores electrocatalytic urea synthesis via carbon–nitrogen (CN) coupling from CO2 and nitrogen species, specifically nitrate, nitrite, nitric oxide, and nitrogen gas. It discusses recent discoveries in catalyst design, reaction pathways, and detection methods. Future outlooks on industrial applications, alternative CN coupling products,
Parker Ballard‐Kyle, Isabel Hsieh, Huiyuan Zhu   +2 more
wiley   +1 more source