Results 141 to 150 of about 142,488 (317)

Effect of primary-zone equivalence ratio and hydrogen addition on exhaust emission in a hydrocarbon-fueled combustor [PDF]

The effects of reducing the primary-zone equivalence ratio on the exhaust emission levels of oxides of nitrogen, carbon monoxide, and unburned hydrocarbons in experimental hydrocarbon-fueled combustor segments at simulated supersonic cruise and idle ...
Ingebo, R. D., Norgren, C. T.
core   +1 more source

Application of a portable FTIR for measuring on-road emissions [PDF]

, 2005
The objective of this work was the development of an onroad in-vehicle emissions measurement technique utilizing a relatively new, commercial, portable Fourier Transform Infra-Red (FTIR) Spectrometer capable of identifying and measuring (at ...
Andrews, Gordon E., Bell, Margaret, Daham, Basil, Li, Hu, Ropkins, Karl, Rosario, Ballesteros, Tate, James   +6 more
core  

Environmental audit of industrial waste [PDF]

, 2020
In this industrialization era, an environmental audit is become more complex which is a very strict action are needed in minimize a wastage. Employing an environmental management system is a significant undertaking but an extremely worthwhile one for any
Aden, Mohamed Ibrahim, Hasbullah, Mohd Hanif, Hassan, Hassan Hussein, Zahari, Muhammad Syaiful Annuruddin, Zulkafli, Nurul Farhana   +4 more
core  

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

Advanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen, Haosen Miao, Weiying Hong, Matteo Palma   +3 more
wiley   +1 more source

General aviation piston-engine exhaust emission reduction [PDF]

, 1977
To support the promulgation of aircraft regulations, two airports were examined, Van Nuys and Tamiami. It was determined that the carbon monoxide (CO) emissions from piston-engine aircraft have a significant influence on the CO levels in the ambient air ...
Duke, L. C., Houtman, W. H., Kempke, E. E., Jr., Rezy, B. J., Westfield, W. T.   +4 more
core   +1 more source

Infrared Nanocrystals for Space Application: Hardness to Irradiations

Advanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret, Dario Mastrippolito, Bingbing Xia, Adrien Khalili, Maxime Lebreton, Giorgia Strobbia, Albin Colle, Marco Paye, Mariarosa Cavallo, Erwan Bossavit, Claire Abadie, Yoann Prado, Debora Pierucci, Victor Parahyba, Francois Coursaget, David Darson, Emrick Briand, Ian Vickridge, Stephane Demiguel, Sebastien Massenot, Jean‐Marc Belloir, Vincent Goiffon, Emmanuel Lhuillier   +22 more
wiley   +1 more source

Exhaust emissions of a double annular combustor: Parametric study [PDF]

A full scale double-annular ram-induction combustor designed for Mach 3.0 cruise operation was tested. Emissions of oxides of nitrogen, carbon monoxide, unburned hydrocarbons, and smoke were measured over a range of combustor operating variables ...
Schultz, D. F.
core   +1 more source

Conductance‐Dependent Photoresponse in a Dynamic SrTiO3 Memristor for Biorealistic Computing

Advanced Functional Materials, EarlyView.
A nanoscale SrTiO3 memristor is shown to exhibit dynamic synaptic behavior through the interaction of local electrical and global optical signals. Its photoresponse depends quantitatively on the conductance state, which evolves and decays over tunable timescales, enabling ultralow‐power, biorealistic learning mechanisms for advanced in‐memory and ...
Christoph Weilenmann, Hanglin He, Marko Mladenović, Till Zellweger, Kevin Portner, Klemens Bauer, Guillaume Bellec, Mathieu Luisier, Alexandros Emboras   +8 more
wiley   +1 more source

Ultrastable Photoactive Halide Perovskite Nanocrystal‐Sensitized SnO2 Nanorods for Room‐Temperature NO2 Detection

Advanced Functional Materials, EarlyView.
ABSTRACT Metal oxide (MOx)‐based NO2 gas sensors typically require high temperatures or ultraviolet light, limiting their practical use. To enable visible‐light activation at room temperature, efficient and stable photosensitizers should be integrated with nanostructured MOx hosts.
Yeonji Yuk, Dokyum Kim, Jun‐Cheol Park, Yoonsung Jung, Inhyeok Oh, Donghyeon Lee, Yejoon Kim, Ji‐Eun Yeo, Young Min Song, Chang‐Lyoul Lee, Sanghan Lee   +10 more
wiley   +1 more source

From real-driving emissions to urban air quality: composition of aged PM from modern diesel, gasoline, and CNG fueled cars and plug-in hybrid electric vehicles

Atmospheric Environment: X
Secondary aerosol emissions from vehicle exhaust often surpass primary particle emissions, yet they are not currently regulated, as they remain difficult to constrain.
Leïla Simon, Luis Barreira, Katariina Kylämäki, Sanna Saarikoski, Minna Aurela, Delun Li, Anssi Järvinen, Hannu Kuutti, Wojciech Honkisz, Milja Jäppi, Laura Salo, Matti Rissanen, Tereza Červená, Michal Vojtíšek, Jan Topinka, Piotr Bielaczyc, Topi Rönkkö, Päivi Aakko-Saksa, Hilkka Timonen   +18 more
doaj   +1 more source