Results 41 to 50 of about 163 (130)

Computational Analysis of Spray Angle Effects on Combustion and Emissions in Methane‐Diesel Dual‐Fuel Engine

Energy Science &Engineering, Volume 14, Issue 3, Page 1100-1112, March 2026.
This study concluded that wider spray angles produce wall impingement and greater unburned hydrocarbons in methane‐diesel dual‐fuel engines, whereas 110° balances efficiency and emissions. ABSTRACT A diesel methane dual fuel engine appears as a potential means for lowering emissions while retaining useful thermal efficiency.
Abdullah Al Rifat, Md. Arafat Rahman, Md. Mizanur Rahman, Tafsirul Hassan, Md Nazmul Haque   +4 more
wiley   +1 more source

Injection Strategy in Natural Gas–Diesel Dual-Fuel Premixed Charge Compression Ignition Combustion under Low Load Conditions

Engineering, 2019
Dual-fuel premixed charge compression ignition (DF-PCCI) combustion has been proven to be a viable alternative to conventional diesel combustion in heavy-duty compression ignition engines due to its low nitrogen oxides (NOx) and particulate matter (PM ...
Hyunwook Park, Euijoon Shim, Choongsik Bae   +2 more
doaj   +1 more source

A CFD Study on the Effects of Injection Timing and Spray Inclusion Angle on Performance and Emission Characteristics of a DI Diesel Engine Operating in Diffusion-Controlled and PCCI Modes of Combustion

Energies, 2023
In three-dimensional (3D) computational fluid dynamics (CFD) simulations, the effects of injection timing and spray inclusion angle (SIA) on performance and emissions of diffusion-controlled and Premixed Charge Compression Ignition (PCCI) combustion in ...
Cengizhan Cengiz, Salih Ozen Unverdi
doaj   +1 more source

Noise, Vibration, and Harshness (NVH) Challenges in Hydrogen Internal Combustion Engine Vehicles

Energy Science &Engineering, Volume 14, Issue 2, Page 1067-1080, February 2026.
ABSTRACT This paper presents a state‐of‐the‐art literature review on noise, vibration, and harshness (NVH) in hydrogen‐fuelled internal combustion engines. Studies published between 2011 and 2025 were screened, covering fundamental flame physics, test‐bench work, and recent prototype vehicles.
Krisztián Horváth
wiley   +1 more source

Partially-charged advanced low-temperature combustion in diesel engine: Progress and prospects

Alexandria Engineering Journal
Stringent mandates relating to emission management forced scientists, engine manufacturers, and policymakers to have more tightly bound relationships aiming at the strategies of cleaner combustion and more efficient fuel use from internal combustion ...
Thanh Tuan Le, Dhinesh Balasubramanian, Anh Tuan Le, Dao Nam Cao, Wei-Hsin Chen, Inbanaathan Papla Venugopal, Ümit Ağbulut, Thanh Hai Truong, Xuan Phuong Nguyen, Van Ga Bui, Anh Tuan Hoang   +10 more
doaj   +1 more source

Contribution of Addictovigilance data to assess adverse‐events linked to psychoactive substances in children and adolescents

British Journal of Clinical Pharmacology, Volume 91, Issue 10, Page 2957-2968, October 2025.
Aims We sought to characterize adverse events and deaths associated with the use of psychoactive substances in children and adolescents. Methods Two French Addictovigilance databases were analysed: spontaneous reports and deaths over the period 2016–2021, in subjects aged 10–<18 years. An unsupervised classification was implemented on consumption data (
Hélène Peyrière, Anne Batisse, Nathalie Fouilhé Sam‐Laï, Amélie Daveluy, Christine Fournier‐Choma, Sylvie Deheul, Cécile Chevalier, Clémence Lacroix, Valérie Gibaja, Aurélie Aquizerate, Stéphanie Pain, Emilie Jouanjus, Marie‐Christine Picot, Erika Nogue   +13 more
wiley   +1 more source

CFD Investigation into Diesel PCCI Combustion with Optimized Fuel Injection [PDF]

Energies, 2011
A multi-pulse injection strategy for premixed charge compression ignition (PCCI) combustion was investigated in a four-valve, direct-injection diesel engine by a computational fluid dynamics (CFD) simulation using KIVA-3V code coupled with detailed chemistry.
Zhijun Peng, Bin Liu, Weiji Wang, Lipeng Lu   +3 more
openaire   +3 more sources

Optimized Dynamic Network Biomarker Deciphers a High‐Resolution Heterogeneity Within Thyroid Cancer Molecular Subtypes

Med Research, Volume 1, Issue 1, Page 10-31, June 2025.
An optimized dynamic network biomarker approach reveals a critical transition signal and identifies three distinct molecular subtypes of differentiated thyroid cancer, each with unique global regulatory landscapes. ABSTRACT The progression of differentiated thyroid carcinoma (DTC) poses significant clinical challenges, especially in determining the ...
Haonan Zhang, Ge Zhang, Pengyuan Xu, Fengyi Yu, Liwen Li, Runzhi Huang, Pengpeng Zhang, Kaisaierjiang Kadier, Yuanyuan Wang, Qiqi Gu, Yalei Ding, Tianshu Gu, Hao Chi, Shiqian Zhang, Ruhao Wu, Yudi Xu, Shanshan Zhu, Honglin Zheng, Taiqi Zhao, Qi He, Xinguang Qiu   +20 more
wiley   +1 more source

Enhancing CI engine performance and emissions through PCCI and sustainable combustion solutions with waste cooking oil biodiesel blends a comparative study

Scientific Reports
The limited availability of petroleum fuels and pollution concerns has led to the search for alternative energy sources. The most advantages of utilizing biodiesel are the simultaneous decrease of HC as well as CO emissions.
Medhat Elkelawy, Hagar Alm-Eldin Bastawissi, E. A. El Shenawy, Mahmoud A. M. El-Gamal, P. V. Elumalai, Dhinesh Balasubramanian, Manzoore Elahi M. Soudagar, Nasim Hasan   +7 more
doaj   +1 more source

Evaluation of the incidence, characteristics, and outcomes of pediatric chronic critical illness.

PLoS ONE, 2021
Our aim was to determine characteristics of children with chronic critical illness (CCI) admitted to the pediatric intensive care unit (PICU) of a tertiary care children's hospital in Turkey. The current study was a multicenter retrospective cohort study
Hilmi Demirkiran, Mehmet Kilic, Yakup Tomak, Tahir Dalkiran, Sadik Yurttutan, Murat Basaranoglu, Oguz Tuncer, Turan Derme, Arzu Esen Tekeli, Ilhan Bahar, Siddik Keskin, Hafize Oksuz   +11 more
doaj   +1 more source