Results 121 to 130 of about 34,611 (247)

A Long‐Run Perspective on Unconditional Convergence in Manufacturing: Evidence From U.S. Industrialisation

Oxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT This paper examines long‐run unconditional convergence of labour productivity in manufacturing across 48 contiguous U.S. states. We construct a detailed panel data set of state‐industry pairs with over 120 industries covering the period 1880–2007.
Alexander Klein, Miguel León‐Ledesma, Nicholas Crafts   +2 more
wiley   +1 more source

Dynamic Response Mechanism of Ethanol Atomization–Combustion Instability under a Contrary Equivalence Ratio Adjusting Trend

Aerospace
This study experimentally explored the effects of equivalence ratio settings on ethanol fuel combustion oscillations with a laboratory-scale combustor.
Chengfei Tao, Rongyue Sun, Yichen Wang, Yang Gao, Lin Meng, Liangbao Jiao, Shaohua Liang, Ling Chen   +7 more
doaj   +1 more source

Brain strain: Blood flow and metabolism in environmental extremes

Experimental Physiology, EarlyView.
Abstract This narrative review compares and contrasts the most commonly encountered environmental stressors on human cerebrovascular functioning. From high altitude and space, extreme apnoea, heat and cold stress, the impact of these stressors on the regulation of cerebral blood flow (CBF) and oxygen metabolism (CMRO2${\mathrm{CM}}{{\mathrm{R}}_ ...
Dario Vrdoljak, Damian M. Bailey, Travis D. Gibbons, Philip N. Ainslie   +3 more
wiley   +1 more source

Combustion and Pyrolysis EA‐IRMS Techniques to Determine the δ2H of Diamonds

Rapid Communications in Mass Spectrometry, Volume 40, Issue 10, 30 May 2026.
ABSTRACT Rationale Diamonds are generally considered to be metasomatic minerals originating from the Earth's mantle. They formed through the interaction of carbon‐bearing fluids or melts with the surrounding deep lithology. Most knowledge about the formation of diamonds comes from studying their mineral inclusions or stable isotopes.
François Fourel, Christophe Lécuyer, Emilie Thomassot, Etienne Deloule, Charles Ojeimi   +4 more
wiley   +1 more source

From Hemp Bast to Lyocell Fiber: Sustainable Process Optimization for Lyocell‐Grade Dissolving Pulp

Journal of Applied Polymer Science, Volume 143, Issue 16, April 20, 2026.
This study presents a sustainable method to produce lyocell‐grade dissolving pulp from Canadian hemp bast fibers. A simplified alkali‐chelation‐bleaching process, free from sulfur and chlorine, yielded high α‐cellulose pulp with low lignin and hemicellulose content. The pulp was successfully spun into continuous hemp‐based lyocell fibers, demonstrating
Md Abu Sayed, Lelia Lawson, Bernardo Araujo Souto, K. M. Abdun Noor, Dagem Z. Haddis, Frehiwot T. Hailu, Jane Batcheller, David C. Bressler, Patricia I. Dolez   +8 more
wiley   +1 more source

Reduced sediment accumulation rate enhances early marine diagenesis of periplatform sediments

The Depositional Record, Volume 12, Issue 2, April 2026.
The influence of reduced sediment accumulation rate on early marine burial diagenesis was investigated in sediments collected by ODP Leg 133. Results show that low sediment accumulation rates can produce substantial and asynchronous shifts in stable carbon isotope ratios across a slope transect without the development of sedimentological indicators of ...
Amanda M. Oehlert, Larry C. Peterson, Dick Kroon, Peter K. Swart   +3 more
wiley   +1 more source

Opposing Trends in Wintertime Convective Initiation Environments of East China Driven by Anthropogenic Aerosols and Greenhouse Gases

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 6, 28 March 2026.
Abstract Winter convection can trigger severe disasters due to low temperature, yet the drivers and mechanisms of regional long‐term trends in winter convective initiation remain unclear. Using homogenized radiosonde data, we reveal the spatially divergent trends in wintertime atmospheric unstable conditions, with a significant decrease in the northern
Xinyan Li, Fan Wang, Yizhou Zhuang, Aiguo Dai, Meng Gao   +4 more
wiley   +1 more source

The vibroacoustical indexes of the internal combustion engine when the mass of the details of the crankshaft device varies [PDF]

Transport, 2002
The vibroacoustical indexes of the internal combustion engine retrogress when the mass of the details of the crankshaft device increases. The blatancy of sound pressure, oscillation speed, the whole engine increase very fractionally when mass increases ...
E. Juodzevičius, V. Valiūnas
doaj  

Incorporation of MoO3 Nanoparticles Into Polypropylene Fibers via Melt Spinning: Investigation of Mechanical, Thermal, and Chromic Properties

Journal of Applied Polymer Science, Volume 143, Issue 11, March 15, 2026.
Pure PP and PP/MoO 3 filaments produced by melt spinning. ABSTRACT Polypropylene (PP) composite fibers containing 0.10, 0.20, and 0.50 wt% molybdenum oxide (MoO 3 ) nanoparticles were produced via melt spinning. In the present study, the effect of this addition on the mechanical, thermal, and chromic properties of the fibers was investigated.
Raphael Borges Magalhães Bergamini, Maria Inês Bruno Tavares, Camila Vicente de Farias, Fabiane Gomes de Oliveira, Karla Mayara Arguelles Simões, Diego de Holanda Saboya Souza   +5 more
wiley   +1 more source

Mesoporous Carbon Thin Films with Large Mesopores as Model Material for Electrochemical Applications

Advanced Functional Materials, Volume 36, Issue 18, 2 March 2026.
Mesoporous carbon thin films possessing 70 nm mesopores are prepared on titanium substrates by soft templating of resol resins with a self‐synthesized poly(ethylene oxide)‐block‐poly(hexyl acrylate) block copolymer. A strategy to avoid corrosion of the metal substrate is presented, and the films are extensively characterized in terms of morphology ...
Lysander Q. Wagner, Joshua Schober, Pascal Dippell, Chantal Glatthaar, Smail Mekhilef, David Schäfer, Hannes Hergert, Marcus Rohnke, Matthias T. Elm, Bernd M. Smarsly   +9 more
wiley   +1 more source