Results 91 to 100 of about 298,326 (225)

Care and maintenance of small gasoline engines

, 2020
Guide with best practices including care and maintenance recommendations for small gasoline ...
Dean, James W.; Runyan, R. Craig
core  

Design Approaches for Oxygen Reduction Systems for Warehouse Storage Applications

Fire and Materials, EarlyView.
ABSTRACT Oxygen reduction systems (ORS) are protection systems, with a design protection objective to limit fire spread beyond the point of ignition. Research has shown that the prescriptive design methods, in VdS 3527, EN 16750, and ISO 20338, are not appropriate as prescriptive design methods as they result in insufficient protection levels.
Martin Nilsson, Joakim Åström, Patrick van Hees, Brian Meacham   +3 more
wiley   +1 more source

Research on setting up types of containing methane fuel injection schematic for spark ignition engine using Juken software

Tạp chí Khoa học và Công nghệ
With the strong shift in the use of alternative energy sources for gasoline engines on waterways and road vehicles, the concentration of toxic emissions into the environment will gradually be reduced according to the roadmap towards net zero by 2050 ...
Nguyen Thanh Tuan, Quach Hoai Nam, Nguyen Phu Dong, Tran Dang Khoi   +3 more
doaj   +1 more source

Study of Different Active Pre-Chamber Ignition Layouts for Lean Operating Gas Engines using 3D-CFD Simulations

, 2023
303328Internal combustion engines operating with gas could represent an immediate and cost-effective solution in cutting CO2 emissions thanks to the higher hydrogen to carbon ratio compared to commercial fuels and exploiting the higher knock resistance ...
Vacca, Antonino, Kraljevic, Ivica, Bargende, Michael, Helmut, Ruhland, Breuer, Albert, Bucherer, Sebastian, Chiodi, Marco, Kulzer, André Casal, Rothe, Paul Ewald, Kollmeier, Hans-Peter   +9 more
core  

Pollinator risks and recovery from air pollutant interactions during the fossil‐fuel transition

Frontiers in Ecology and the Environment, EarlyView.
By altering the composition and concentration of floral scents, air pollutants such as ozone (O3) and nitrogen oxides (NOx) disrupt the ability of insect pollinators to locate flowers, threatening biodiversity and crop production. We examine the impact of these pollutants on pollinator performance and evaluate the short‐ and long‐term consequences of ...
James MW Ryalls, Jacob Bishop, Carol Wagstaff   +2 more
wiley   +1 more source

Farm‐Level Greenhouse Gas Balance of Commercial Coffee Production in Minas Gerais, Brazil

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Coffee production is considered a potential contributor to climate change mitigation due to its perennial biomass and carbon storage capacity. However, empirical assessments of greenhouse gas (GHG) balances at the farm level remain limited for commercial coffee systems.
Isabella Salgado Faustino, Laércio Antônio Gonçalves Jacovine, Polyana Pizzi Rotta, Pablo Murta Albino Baião, Viviani Silva Lirio, Rafael da Silva Teixeira, Luís Henrique Rodrigues Silva   +6 more
wiley   +1 more source

Rethinking a positive‐sum game: US FDI location decisions in the presence of Chinese FDI

Global Strategy Journal, EarlyView.
Abstract Research Summary This study examines how rising Chinese outbound foreign direct investment (OFDI) in third‐country markets shapes US MNEs' foreign direct investment location decisions amid escalating US–China geopolitical rivalry. US firms initially benefit from complementary co‐location dynamics, as Chinese OFDI—particularly in infrastructure—
Injae Jeon, Jon Jungbien Moon
wiley   +1 more source

Kinetic Study on the Reactions of Hydroxyl Radical with 1‐butene, Isobutene, and Trimethylpentene: Temperature and Pressure Dependence

International Journal of Chemical Kinetics, EarlyView.
ABSTRACT The temperature dependence of the reaction rate coefficients (k) for the reactions of hydroxyl radical with three alkenes was measured by using laser‐induced fluorescence techniques in the temperature range of 298–750 K. The negative temperature dependence of k was observed for each reaction in the low‐pressure range.
Ryota Fushimi, Tatsuo Oguchi
wiley   +1 more source

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source

Mass Spectrometry in Authentication and Forensic Approaches for Determining the Origin of Hazardous Chemicals

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Identification of a chemical agent yields insights into its physicochemical properties. By examining the intrinsic characteristics and environment of a compound, information about its history can be gathered. The main objective of authentication/forensic approaches to chemicals is to trace the history of the compound's origin, regardless of ...
Carla Orlandi, Grégoire Delaporte, Christine Albaret, Emmanuel Joubert, Anne Bossée, Emilien L. Jamin, Laurent Debrauwer   +6 more
wiley   +1 more source