Results 41 to 50 of about 2,015 (145)

Designing main-group catalysts for low-temperature methane combustion by ozone

Nature Communications, 2023
The catalytic combustion of methane at a low temperature is becoming increasingly key to controlling unburned CH4 emissions from natural gas vehicles and power plants, although the low activity of benchmark platinum-group-metal catalysts hinders its ...
Shunsaku Yasumura, Kenichiro Saita, Takumi Miyakage, Ken Nagai, Kenichi Kon, Takashi Toyao, Zen Maeno, Tetsuya Taketsugu, Ken-ichi Shimizu   +8 more
doaj   +1 more source

Non‐Edible Plant Pelemir Seeds (Cephalaria Syriaca L.): A New and Effective Source for Biodiesel Feedstock

Global Challenges, Volume 10, Issue 8, August 2026.
This research explores sustainable biodiesel production from non‐edible pelemir (Cephalaria syriaca) seed oil, a renewable energy feedstock. Optimized transesterification yields biodiesel with high conversion and desirable fuel properties, meeting international standards. This study highlights pelemir's significant potential for green energy solutions,
Hülya Karabas, Mahnaz Gümrükcüoglu Yigit   +1 more
wiley   +1 more source

Comprehensive Experimental Investigation of Rosehip (Rosa canina L.) Seed Oil as a Novel Biodiesel Feedstock: Engine Performance, Combustion, Emission, and Exergy Analyses

Global Challenges, Volume 10, Issue 8, August 2026.
Rosehip seed oil is converted into biodiesel (Rosehip Seed Oil Methyl Ester‐RSOME) and experimentally evaluated in a diesel engine. Comprehensive analyses of engine performance, emissions, combustion characteristics, and exergy reveal the effects of RSOME blends on engine behavior, providing insights into the utilization of this novel biodiesel ...
Erdoğan Güner
wiley   +1 more source

Remote Sensing During the 2025 Los Angeles Wildfires

AGU Advances, Volume 7, Issue 5, August 2026.
Abstract The January 2025 Los Angeles County wildfires burned more than 50,000 acres, destroyed more than 16,000 structures, and caused 31 deaths. This Commentary examines how NASA's Disasters Program coordinated with response organizations to deliver 22 satellite and airborne products during the fires, even as the Eaton Fire forced the Jet Propulsion ...
Julie Rolla, Kimberley Miner, Clayton Elder, Eric Howard, Julia Milton, Nathan Spangler   +5 more
wiley   +1 more source

Assessing Fire‐Induced Permafrost Ground Deformation and Environmental Drivers Using Interferometric Synthetic Aperture Radar and Machine Learning

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Arctic fires in permafrost landscapes have become more frequent in recent years with record fire years in Eastern Siberia in 2019, 2020 and 2021. The consumption of organic layer and charring of the landscape can deepen active layer and long‐term permafrost ground deformation.
Sonam Wangchuk, Simone Maria Stuenzi, Moritz Langer, Ping Lu, Roger Michaelides, Kevin Schaefer, Sander Veraverbeke   +6 more
wiley   +1 more source

Warming Drives Large‐Scale Shifts in Post‐Disturbance Vegetation Dynamics and Expansion of Deciduous Trees in the Boreal Forest in a Dynamic Vegetation Model

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 8, August 2026.
Abstract The intensification of disturbance regimes due to climate change is a growing concern in boreal forests, yet the long‐term consequences for forest recovery remain poorly understood, as boreal successional dynamics unfold over a century or longer and exceed the length of available observational records.
L. S. Layritz, M. Anand, J. E. Kim, B. F. Meyer, K. Gregor, T. A. M. Pugh, C. Boettiger, A. Buras, A. Rammig   +8 more
wiley   +1 more source

A Study of the Mechanism Causing Pressure Waves and Knock in an SI Engine under High-Speed and Supercharged Operation

International Journal of Automotive Engineering, 2018
In this study, knocking over a wide range of engine speeds was visualized using an optically acssessible engine. In addition, knock under a high compression ratio and supercharged, lean combustion was investigated.
Akira Iijima, Shuhei Takahata, Hiroki Kudo, Keito Agui, Masaaki Togawa, Kento Shimizu, Yuki Takamura, Mitsuaki Tanabe, Hideo Shoji   +8 more
doaj   +1 more source

Navigating the Flames: Comparative Analysis of Cremation Practices in the Roman and Early Medieval Periods at Gbely‐Kojatín (SK) and Přítluky (CZ)

Archaeometry, Volume 68, Issue 4, Page 818-830, August 2026.
ABSTRACT Cremation became the dominant funerary practice in the Middle Danube Region during the Roman Period (RP) (1st–4th century) and reappeared in the Early Medieval Ages (EMA) (6th/7th–8th century). This study aims to reconstruct differences in cremation conditions from the Gbely‐Kojatín site (Slovakia, RP and EMA) and the Přítluky site (Czech ...
Katarína Hladíková, Anna Pankowská, Marek Hladík, Pavla Kučerová, Rastislav Milovský   +4 more
wiley   +1 more source

A predictive model of natural gas mixture combustion in internal combustion engines

Ingeniería e Investigación, 2007
This study shows the development of a predictive natural gas mixture combustion model for conventional com-bustion (ignition) engines. The model was based on resolving two areas; one having unburned combustion mixture and another having combustion ...
Henry Espinoza, Luís Patiño, Yordy González, Lezama Irving   +3 more
doaj  

Carbon Stocks in Sugarcane Biomass and Their Implications on Land Use Change CO2 Balance in Brazil

GCB Bioenergy, Volume 18, Issue 8, August 2026.
This paper develops a regionalized carbon stock factor for sugarcane biomass in Brazil, showing that sugarcane cultivation can lead to net carbon removal in most municipalities. The findings improve greenhouse gas inventories and support bioenergy policies by providing more accurate, spatially resolved estimates for land use change emissions.
Thayse Aparecida Dourado Hernandes, Nilza Patrícia Ramos, Sandra Furlan Nogueira, Ricardo Antonio Almeida Pazianotto, Renan Milagres L. Novaes, Elizabethe de Campos Ravagnani, Gustavo Bayma, Luiz Eduardo Gomes da Silva, Cristiano Alberto de Andrade, Marília Ieda da Silveira Folegatti   +9 more
wiley   +1 more source