Results 261 to 270 of about 925,504 (345)

High‐resolution compound‐specific δ15N isotope dietary study of humans from the Scottish Mesolithic and Neolithic

Archaeometry, EarlyView.
Abstract Numerous isotopic studies of Scottish Mesolithic and Neolithic diets suggest a shift from marine‐based to terrestrial‐based subsistence strategies. However, bulk collagen isotope analysis may overlook low‐level marine food consumption. This study combines bulk collagen stable isotope data from four Neolithic sites (Quanterness, Rattar East ...
Valentina Martinoia, Oliver E. Craig, Sophy Charlton, Kate Britton, Alison Sheridan, Annie Bones, Helen Talbot, Rebecca MacDonald, Michael Richards   +8 more
wiley   +1 more source

1D hydrogen engine modeling to investigate air-fuel ratio, spark timing, and water injection effects on performance and emissions. [PDF]

Sci Rep
Saied OM, Abdelwahab M.
europepmc   +1 more source

Hydroclimatic development from the Early Holocene to anthropogenic times: a comparative study of diatom oxygen isotope records and multiproxy data from Lake Khamra, eastern Siberia

Boreas, EarlyView.
Northern Eurasia underwent major hydroclimatic changes since the beginning of the Holocene interglacial. A rapid warming period reaching the Holocene Thermal Maximum (HTM), followed by a general cooling trend until recent times, was observed in Eurasian lacustrine diatom oxygen isotope (δ18Odiatom) records.
Amelie Stieg, Boris K. Biskaborn, Ulrike Herzschuh, Jens Strauss, Svetlana S. Kostrova, Luidmila A. Pestryakova, Hanno Meyer   +6 more
wiley   +1 more source

The Role of Pd-Pt Bimetallic Catalysts in Ethylene Detection by CMOS-MEMS Gas Sensor Dubbed GMOS. [PDF]

Micromachines (Basel)
Ashkar H, Stolyarova S, Blank T, Nemirovsky Y.   +3 more
europepmc   +1 more source

From polymer to SiOC glass: structure, microstructure, mechanical, and thermal properties

Journal of the American Ceramic Society, EarlyView.
Abstract The transformation of a methyl‐siloxane into a SiOC glass in Ar and reactive CO2 atmosphere was studied through positron annihilation spectroscopy, infrared spectroscopy, density, and calorimetric measurements, whereas the mechanical properties were monitored by nanoindentation and the thermal diffusivity measured by the laser flash method ...
Mattia Biesuz, Adane M. Abebe, Levent Karacasulu, Sebastiano Mariazzi, Roberto S. Brusa, Daria Szewczyk, Nicola Pugno, Giacomo Sero, Maik Butterling, Maciej Oskar Liedke, Andreas Wagner, Eric Hirschmann, Michele Cassetta, Gian D. Sorarù   +13 more
wiley   +1 more source

Performance and emissions of diesel engine combustion lubricated with Jatropha bio-lubricant and MWCNT additive. [PDF]

Sci Rep
Uppar R, Dinesha P, Kumar S.
europepmc   +1 more source

Is Pollution Reduced or Redistributed? The Impact of Electric Vehicle Subsidies in China

Journal of Economics &Management Strategy, EarlyView.
ABSTRACT This paper examines the geographically heterogeneous environmental effects of electric vehicle (EV) subsidies in China and compares EV subsidies with alternative policies that price environmental externalities. The study employs a structural model that features demand and supply to analyze the environmental effects of EV subsidies through ...
Lisha Meng, Junji Xiao, Mengxin Liu
wiley   +1 more source

The Influence of Leather Type on Thermal and Smoke-Generating Properties. [PDF]

Materials (Basel)
Staszko S, Półka M, Matuszkiewicz R.
europepmc   +1 more source

Ice Nucleation Abilities and Chemical Characteristics of Laboratory-Generated and Aged Biomass Burning Aerosols. [PDF]

Environ Sci Technol
Chen J, Jakob FMO, Voliotis A, Wu H, Syafira SA, Oghama O, Shardt N, Fauré N, Kong X, Mcfiggans G, Kanji ZA.   +10 more
europepmc   +1 more source

Nanotechnology and LSTM machine learning algorithms in advanced fuel spray dynamics in CI engines with different bowl geometries. [PDF]

Sci Rep
Venu H, Soudagar MEM, Kiong TS, Razali NM, Wei HR, Rajabi A, Raju VD, Khan TMY, Almakayeel N, Cuce E, Seker H.   +10 more
europepmc   +1 more source