Results 41 to 50 of about 22,506 (202)

Suppression Characteristics and Mechanism of MCA@ADP‐MMT Composite Powder on Aluminum Powder Explosion

Safety Science and Technology, EarlyView.
MCA@ADP‐MMT can effectively slow down the combustion of Al powder and suppress the occurrence of explosion through the synergistic effect of multiple suppression mechanisms including dilution, quenching, and barrier. ABSTRACT The advancement of precision machining technology has heightened safety concerns regarding aluminum (Al) powder explosions in Al
Haiyan Chen, Wenxue Sun, Hao Liu, Chunmiao Yuan, Qi Zhang, Jinshe Chen   +5 more
wiley   +1 more source

Modeling nitrogen species from ammonia reciprocating engine combustion in temperature-equivalence ratio space

Applications in Energy and Combustion Science
This paper explores nitrogen species formation in temperature (T)-equivalence ratio (ϕ) space under internal combustion engine-relevant conditions using zero-dimensional modeling. The analysis reveals that N2O and NO are formed in a much larger region of
William F. Northrop
doaj   +1 more source

Imaging gas in a combustion engine with high‐energy X‐ray Compton scattering

Journal of Synchrotron Radiation, EarlyView.
Compton‐scattering imaging has been applied to a combustion engine under operation for the first time. With a time‐resolved technique, a crank‐angle dependency of Compton‐scattered X‐ray intensity is obtained at different positions in a combustion chamber.We have developed a time‐resolved Compton‐scattering imaging technique for visualizing gas ...
Yuki Mizuno, Hiroaki Suzuki, Naruki Tsuji, Takuyo Oguchi, Go Matsubara, Hiroyuki Yamase, Yoshiharu Sakurai   +6 more
wiley   +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, EarlyView.
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

Effects of natural gas admission location and timing on performance and emissions characteristics of LPDF two-stroke engine at low load

Case Studies in Thermal Engineering
Low-pressure gas-admission marine two-stroke engines have significant potential for reducing emissions in the shipping industry. However, they exhibit poor combustion quality under low-load conditions, leading to lower thermal efficiency and high levels ...
Antony John Nyongesa, Jae-Hyuk Choi, Ji-Woong Lee, Jae-ung Lee, Seongwan Kim, Siljung Yeo, Jun-Soo Kim, Won-Ju Lee   +7 more
doaj   +1 more source

Effects of warming on plant uptake of post‐fire nitrogen in an arctic heath tundra

New Phytologist, EarlyView.
Summary Postfire nitrogen (N) becomes increasingly important with the rising frequency of fires in arctic tundra, and climate warming is expected to accelerate plant recovery following fire. However, how plants differ in utilizing this postfire N and how their postfire N uptake responds to warming remains unknown.
Wenyi Xu, Per Lennart Ambus
wiley   +1 more source

Effect of flue gas recirculation on the formation of unburned hydrocarbons in oxy-fuel and air flames in a semi-industrial scale burner

Fuel Processing Technology
Oxy-fuel combustion is a promising technology for reducing CO2 emissions in the energy sector. In this process, nitrogen from air is replaced with CO2, to ensure the purity of CO2 in the flue gas, altering the properties of the oxidizer.
D. König, D. Hülsbruch, J. Ströhle, B. Epple   +3 more
doaj   +1 more source

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

Recycled Cellulose‐Based Colorimetric Indicators for Non‐Contact Detection of Food Contamination

Advanced Sustainable Systems, Volume 10, Issue 4, April 2026.
Recycled cellulose acetate films, functionalized with red cabbage anthocyanins, combine antioxidant activity and pH‐responsive color changes for smart food packaging. They extend shelf life by preventing oxidation and enable non‐contact detection of bacterial contamination via VOC‐triggered color shifts.
Jasim Zia, Marco Friuli, Stefania Villani, Matteo Calcagnile, Pietro Alifano, Christian Demitri, Alessandro Sannino, Leonardo Lamanna   +7 more
wiley   +1 more source

Theoretical Model of Transient Regression of Thermoplastic Materials During Flame Spread: Vaporization; Permanent Mass Loss; Surface Shape

Fire and Materials, Volume 50, Issue 3, Page 227-240, April 2026.
ABSTRACT This article examines a transient, one‐dimensional model of surface regression during opposed flow flame spread over finite thickness, non‐charring thermoplastics. Gas to solid conductive transfer from the flame drives sample heating. The solid degrades into volatile fuel molecules in two stages: (1) the pre‐vaporization heat‐up stage and (2 ...
Indrek S. Wichman, Linwei Mou, Sarzina Hossain, Fletcher J. Miller, Sandra L. Olson   +4 more
wiley   +1 more source