Results 51 to 60 of about 1,043,134 (308)

Cobalt-based multicomponent embedded in biomass-derived porous biochar as a highly efficient oxygen reduction reaction electrocatalyst

Biochar
The oxygen reduction reaction (ORR) is pivotal for energy conversion systems such as metal-air batteries and fuel cells, yet the development of cost-effective and efficient catalysts remains a challenge.
Yu Cheng, Jue Ding, Hongzhe Pan, Yiping Li, Ningyuan Zhu, Linlin Ma, Han Sun, Jun Wu   +7 more
doaj   +1 more source

Community Characteristics and Performance of Phenanthrene-Degrading Microbial Consortia and Immobilized Composite Beads from Contaminated Sites

Microorganisms
Although microbial remediation is a promising strategy for PAH pollution control, its field application remains a significant challenge. PAH-degrading microbial consortia were enriched from contaminated sites in Nanjing.
Langyue Chen, Zhenhua Zhao, Liling Xia, Zhirui Qin, Deqiang Chen   +4 more
doaj   +1 more source

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea

The Anatomical Record, EarlyView.
Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom, Paul Gignac, Daniel E. Barta, Ryan N. Felice, Eric Snively   +4 more
wiley   +1 more source

Multimedia fate modeling of perfluorooctanoic acid (PFOA) and perfluorooctane sulphonate (PFOS) in the shallow lake Chaohu, China.

Environmental Pollution, 2018
Freshwater shallow lake ecosystems provide valuable ecological services to human beings. However, these systems are subject to severe contamination from anthropogenic sources. Per- and polyfluoroalkyl substances (PFASs), including perfluorooctanoic acid (
Xiangzhen Kong, Wenxiu Liu, Wei He, Fuliu Xu, A. Koelmans, W. Mooij   +5 more
semanticscholar   +1 more source

Nasal soft‐tissue anatomy of Triceratops and other horned dinosaurs

The Anatomical Record, EarlyView.
Abstract Although ceratopsid dinosaurs possess a characteristically hypertrophied narial region, soft‐tissue anatomy associated with such a skeletal structure and their biological significance remain poorly understood. The present study provides the first comprehensive hypothesis on the soft‐tissue anatomy in the ceratopsid rostrum based on the Extant ...
Seishiro Tada, Takanobu Tsuihiji, Hiroki Ishikawa, Noriyuki Wakimizu, Soichiro Kawabe, Kodai Sakane   +5 more
wiley   +1 more source

Water quality's responses to water energy variability of the Yangtze River

Water Science and Technology
River energy serves as an indicator of pollutant-carrying capacity (PCC), influencing regional water quality dynamics. In this study, MIKE21 hydrodynamics-water quality models were developed for two scenarios, and grid-by-grid numerical integration of ...
XueQi Tian, Hua Wang, Dongfang Liang, Yichuan Zeng, Yuhan Shen, Yuting Yan, Siqiong Li   +6 more
doaj   +1 more source

Effects of Different Water Seasons on the Residual Characteristics and Ecological Risk of Polycyclic Aromatic Hydrocarbons in Sediments from Changdang Lake, China

Journal of Chemistry, 2016
The sediments’ samples were collected from Changdang Lake for the concentration of fourteen polycyclic aromatic hydrocarbons in March (dry season), June (wet season), and September (temperate season) 2013.
Javid Hussain, Zhenhua Zhao, Yong Pang, Liling Xia, Ittehad Hussain, Xin Jiang   +5 more
doaj   +1 more source

Surface water extent dynamics from three periods of continuous Landsat time series; subregional differences across Argentine plains

Revista de Teledetección, 2021
The Pampean region in Argentina is an extensive plain characterized by abundant shallow lakes that fulfill many environmental, ecological, and social functions.
Vanina S. Aliaga, María C. Piccolo, Gerardo M. E. Perillo   +2 more
doaj   +1 more source

Inter‐ and intraspecific variation in theropod dinosaur dental microwear and its palaeoecological implications

The Anatomical Record, EarlyView.
Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison, James Gregory, Christopher Jackson, Jordan Bestwick, Katlin Schroeder, Samuel J.L. Gascoigne, Paul Bills, Laura B. Porro, Philip D. Mannion, Paul M. Barrett   +9 more
wiley   +1 more source

Bionanotechnology at microplastic and nanoplastic interfaces: detection, adsorption and degradation

Nano Convergence
Micro-nano plastics (M/NPs) are pervasive environmental pollutants whose small size, persistence, and evolving surface states complicate reliable detection and remediation.
Angrui Jiang, Wei Mao, Bowen Dai, Jung Heon Lee, Xue Bai, Juewen Liu   +5 more
doaj   +1 more source