Results 51 to 60 of about 217,373 (308)

Trading off Time, Carbon, Active Travel, and Health: What do People Really Think about Traffic-reduction Measures? [PDF]

, 2023
An online survey polled a socio-demographically representative sample of approximately 2,000 UK residents concerning their attitudes to traffic restrictions that lead to longer car trips.
Farrow, L., Cohen, T., Furlong, J.
core   +1 more source

Technology Advancements for Active Remote Sensing of Carbon Dioxide from Space using the Active Sensing of CO2 Emissions over Nights, Days, and Seasons (ASCENDS) CarbonHawk Experiment Simulator

EPJ Web of Conferences, 2018
This work describes advances in critical lidar technologies and techniques developed as part of the NASA Active Sensing of CO2 Emissions over Nights, Days, and Seasons CarbonHawk Experiment Simulator system for measuring atmospheric column carbon dioxide
Obland Michael D., Campbell Joel, Kooi Susan, Fan Tai-Fang, Carrion William, Hicks Jonathan, Lin Bing, Nehrir Amin R., Browell Edward V., Meadows Byron, Davis Kenneth J.   +10 more
doaj   +1 more source

Quantifying the Potential for Low-Level Transport of Black Carbon Emissions from Cropland Burning in Russia to the Snow-Covered Arctic

Frontiers in Earth Science, 2017
Short lived aerosols and pollutants transported from northern mid-latitudes have amplified the short term warming in the Arctic region. Among those black carbon is recognized as the second most important human emission in regards to climate forcing ...
Joanne V. Hall, Tatiana V. Loboda
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Intentionally Carbon-Doped AlGaN/GaN HEMTs:Necessity for Vertical Leakage Paths [PDF]

, 2014
Dynamic ON-resistance (RON) in heavily carbon doped AlGaN/GaN high electron mobility transistors is shown to be associated with the semi-insulating carbon-doped buffer region.
Šonský, Jan, Caesar, Markus, Croon, Jeroen, Kuball, Martin, Hurkx, Godefridus, Uren, Michael J, Silvestri, Marco   +6 more
core   +1 more source

Room temperature conversion of CO2 to graphene allotropes in low-melting-point liquid metal electrocatalytic reactor – hydrodynamics control through inverted gas bubbler design

Carbon Capture Science & Technology
Electrochemical carbon dioxide (CO₂) reduction presents a promising route for CO₂ utilization into high-value carbon-based products but is often hindered by inefficient gas diffusion towards, and product transport from, the electrochemically active ...
Mohamed A. Alyassi, Priyanka Kumari, Harikrishnan Balakrishnan, Chang Ying Shi, Blaise L. Tardy, Ricardo P. Nogueira, Ludovic F. Dumée   +6 more
doaj   +1 more source

Freestanding three-dimensional core–shell nanoarrays for lithium-ion battery anodes

Nature Communications, 2016
Degradation and low conductivity of transition metal oxide anodes cause capacity fading in lithium ion batteries. Here the authors make freestanding 3D copper oxide/carbon nitride core-shell nanoarrays which accommodate volume change, provide electro ...
Guoqiang Tan, Feng Wu, Yifei Yuan, Renjie Chen, Teng Zhao, Ying Yao, Ji Qian, Jianrui Liu, Yusheng Ye, Reza Shahbazian-Yassar, Jun Lu, Khalil Amine   +11 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

Pore-Scale Investigations into Gradient Carbon Microstructures for Enhanced Mass Transport in PEM Fuel Cell Catalyst Layers

Nanomaterials
This study investigates the impact of non-uniform carbon sphere diameter distributions on the structural and electrochemical performance of catalyst layers (CLs) in proton exchange membrane fuel cells (PEMFCs), utilizing the lattice Boltzmann method (LBM)
Chao Zhang, Lingquan Li, Hao Wang, Guogang Yang, Naibao Huang, Zhonghua Sheng   +5 more
doaj   +1 more source

Levels of ambient air pollution according to mode of transport: a systematic review

The Lancet Public Health, 2017
Background: Controversy exists about the differences in air pollution exposure and inhalation dose between mode of transport. We aimed to review air pollution exposure and inhaled dose according to mode of transport and pollutant and their effect in ...
Magda Cepeda, MSc, Josje Schoufour, PhD, Rosanne Freak-Poli, PhD, Chantal M Koolhaas, MSc, Klodian Dhana, PhD, Wichor M Bramer, Prof Oscar H Franco, PhD   +6 more
doaj   +1 more source