Results 1 to 10 of about 6,664 (208)

Biodiesel for HCCI engine: Prospects and challenges of sustainability biodiesel for energy transition

Results in Engineering, 2023
Biodiesel use in homogeneous charge compression ignition (HCCI) engines has the potential to improve engine performance and combustion characteristics, while at the same time reducing harmful emissions. Diesel engines have the dilemma of PM and NOx trade-
Ibham Veza, Muhammad Idris, Martin Spraggon   +2 more
exaly   +3 more sources

Prevalence of spina bifida across the lifespan in the USA. [PDF]

Dev Med Child Neurol
This original article is commented on by Corona‐Rivera on pages 1177–1178 of this issue. Abstract Aim To estimate the prevalence of spina bifida across the lifespan, the number of people with spina bifida by state, and variations in spina bifida prevalence by insurance type, state, and selected demographics.
Bershadsky J, Riley C, Pettingell SL, Larson SA, Hall-Lande J, Hallas L, Liu T, Reefhuis J.   +7 more
europepmc   +2 more sources

Medical marijuana policies, opioid prescriptions, and adverse events among patients undergoing cancer resection surgery. [PDF]

Cancer
Abstract Background Opioid use and adverse events among cancer patients may change with access to medical marijuana. This study investigated the impacts of medical marijuana legalization (MML) since 2016. Methods Using a difference‐in‐differences approach and 2016 to 2022 private insurance claims data, this cross‐sectional study included patients (aged
Hu JC, Karan K, Zhang H, Portenoy R, Rosa WE, Zhang Y, Reid MC, Tamimi RM, Zhang F, Bruera E, Paice JA, Bao Y.   +11 more
europepmc   +2 more sources

Environmental Burden of Diesel Engines: A Life-Cycle Assessment and the Imperative for Cleaner Alternatives. [PDF]

Glob Chall
This study reveals that the use phase of diesel engines contributes the greatest environmental burden due to intensive diesel consumption and related emissions. Life‐cycle assessment highlights severe impacts on climate change, fossil fuel depletion, acidification, and particulate pollution, emphasizing the importance of biodiesel integration, hybrid ...
Kumar S, Ahmed SF, Pal A, Nguyen MT, Nguyen TH, Duong MT, Nguyen DC, Do HD, Cao DN.   +8 more
europepmc   +2 more sources

New evidence on the impacts of cross-market hospital mergers on commercial prices and measures of quality. [PDF]

Health Serv Res
Abstract Objective To examine the impact of “cross‐market” hospital mergers on prices and quality and the extent to which serial acquisitions contribute to any measured effects. Data Sources 2009–2017 commercial claims from the Health Care Cost Institute (HCCI) and quality measures from Hospital Compare.
Arnold DR, King JS, Fulton BD, Montague AD, Gudiksen KL, Greaney TL, Scheffler RM.   +6 more
europepmc   +2 more sources

Understanding HCCI Characteristics in Mini HCCI Engines [PDF]

SAE Technical Paper Series, 2008
<div class="htmlview paragraph">This paper examines the successful use of HCCI combustion in a standard issue model-aero “diesel” engine. This two-stroke engine, unlike the more common glow-plug versions, operates without any form of combustion initiator.
Kyle Collair, Gareth Floweday
openaire   +3 more sources

Frictional Losses of Ring Pack in SI and HCCI Engine

Energies, 2023
The vast majority of research dedicated to enhancing the homogenous charge compression ignition (HCCI) low-temperature combustion system is focused on improving controllability, efficiency and emissions.
Grzegorz Koszalka, Andrzej Wolff
doaj   +1 more source

Microstructure and abrasive wear properties of high-vanadium-chromium wear resistant alloy

Materials Research Express, 2021
To enhance the wear resistance of high chromium cast iron (HCCI, Cr26), a new wear resistant alloy with high vanadium and chromium contents (HCCI-V, 15Cr5V4MoSiMn) was designed and prepared by sand mold casting.
Fangfang Wang, Liujie Xu, Le Zong, Chunyang Luo, Shizhong Wei   +4 more
doaj   +1 more source

Numerical Investigation of Combustion in HCCI Diesel Engine Fuelled with Biodiesel Blends [PDF]

Journal of Engineering Research - Egypt, 2019
Homogeneous Charge Compression Ignition (HCCI) is an advanced combustion technology being considered for internal combustion engines due to the potential for high fuel conversion efficiency and extremely low particulate matter (PM) and Nitrogen Oxides ...
A. Kabeel, E. ElShenawy, M. Elkelawy, Hagar Alm ElDin Mohamad, Mahmoud Elshanshoury   +4 more
doaj   +1 more source

A comprehensive review into the effects of different parameters on the hydrogen‐added HCCI diesel engine

Energy Science & Engineering, 2023
The current study presents research investigations and developments related to the homogeneous charge compression ignition (HCCI) engine.  Research investigations and recent advances, including the role of various operating conditions on HCCI engine ...
Shyamal Das, Biplab Kumar Debnath, Sushant Negi, Biplab Das, Sadegh Safari, Bale V. Reddy, Sumita Debbarma, Mehdi A. Ehyaei   +7 more
doaj   +1 more source