Results 91 to 100 of about 1,449 (242)

Realization of a Novel Free-Piston Engine Generator for Hybrid-Electric Vehicle Applications. [PDF]

Energy Fuels, 2020
Smallbone A, Hanipah MR, Jia B, Scott T, Heslop J, Towell B, Lawrence C, Roy S, Shivaprasad KV, Roskilly AP.   +9 more
europepmc   +1 more source

Investigation on tunnel stability considering pipe‐roof support with transparent soil technology

Deep Underground Science and Engineering, EarlyView.
This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia, Yunpeng Ji, Zhao Lu, Honghua Zhao, Limin Zhang   +4 more
wiley   +1 more source

Assessment of the effects of microwave‐produced biodiesel blends on electric generator performance and emissions

Environmental Progress &Sustainable Energy, EarlyView.
Abstract Biodiesels are emerging as alternatives to diesel fuel. However, to be a feasible solution, biodiesels must meet strict criteria including high efficiency and minimal environmental impact. The current study focuses on evaluating ethyl ester biodiesel and its blends with diesel fuel to assess their potential.
Ilham Yahya, Fakher Hamdi, Mehrez Gassoumi, Tommaso Giannoni, Andrea Nicolini, Hakan Serhad Soyhan, Ridha Ennetta   +6 more
wiley   +1 more source

A Numerical Investigation of the Effects of Piston Bowl Geometry and Spray Angle on Combustion, Performance and Emission of a Diesel Engine

Energy Science &Engineering, EarlyView.
A piston bowl's design and spray angle improve air‐fuel mixing, resulting in more complete combustion and higher efficiency. Ansys Forte 2023 R1 a CFD software was used to analyze the effects of five combustion chamber geometries of cylinder, modified re‐entrant, re‐entrant, double‐stepped, and stepped on engine performance, combustion, and emission ...
Md. Nazmul Haque, Abdullah Al Rifat, Tafsirul Hassan, Md. Ifthaker Alam, Mohammad Mehedi Hasan Kazol, Md. Ashraful Islam, Abidur Rahman Adib, Mizanur Rahman   +7 more
wiley   +1 more source

Hydrogen‐Enriched Tri‐Fuel Combustion for Low‐Carbon Engines at Medium Engine Load: A Comprehensive CFD Analysis

Energy Science &Engineering, EarlyView.
CFD analysis of a diesel–CH4–H2 tri‐fuel engine shows that increasing hydrogen energy share (HES) enhances mixing and accelerates combustion, improving pressure, efficiency, and reducing CO and soot. At 60% HES, ISFC improves 26.2%, soot drops 95%, while NOx increases due to higher temperatures. ABSTRACT The global commitment to achieve net‐zero carbon
Md. Ifthaker Alam, Tafsirul Hassan, Md Imtiaz Hossen, Md. Shaib Hossain, Bandhon Saha Bijoy   +4 more
wiley   +1 more source

Obstetrics and gynecology devices designed for low‐ and middle‐income countries: A narrative review

International Journal of Gynecology &Obstetrics, Volume 169, Issue 1, Page 71-80, April 2025.
Abstract There are many barriers contributing to poor health outcomes for women in low‐ and middle‐income countries (LMICs), one of which is the lack of necessary medical devices. Presently, the development of various kinds of devices intended to improve women's health outcomes specifically in LMICs remains underrepresented in the literature; therefore,
Dhanalakshmi Thiyagarajan, Enaam A. Adanu, K. Rivet Amico   +2 more
wiley   +1 more source

Determining the Optimal Water Storage Depth of Apple Orchards in the Chinese Loess Plateau: Balancing Soil Desiccation Mitigation, Plant Utilization, and Engineering Construction

Land Degradation &Development, EarlyView.
ABSTRACT Deep‐rooted plantations are central to dryland ecological restoration, yet their long‐term cultivation drives widespread deep soil desiccation, threatening ecosystem sustainability. While artificial water replenishment is a key deep soil desiccation mitigation strategy, the depth‐dependent positional effect of stored water on eco‐hydrological ...
Haoyan Wei, Xuguang Zhang, Yanwei Lu, Sk Shamshul Alam Kamar, Hailong He, Xia Wang, Min Li   +6 more
wiley   +1 more source

Bed‐level tools for monitoring erosion and accretion patterns: Flume validation and field testing

Limnology and Oceanography: Methods, EarlyView.
Abstract Monitoring short‐term changes in surface sediment elevation is fundamental to understanding erosion, transport, and deposition dynamics in shallow coastal environments. However, commonly used field approaches, such as horizontal markers, sediment erosion tables, subsurface sediment plates, or erosion pins, are not always cross‐validated under ...
Lucía Rodríguez‐Arias, Inés Mazarrasa, Beatriz Marin‐Diaz, Teresa Alcoverro, Barbara Ondiviela, Jordi F. Pagès, Eduardo Infantes   +6 more
wiley   +1 more source

Real‐Time Fractional Control of an Electrohydraulic System Using Low‐Cost Technology

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Advances in control methods for electrohydraulic systems (EHS) improve performance by addressing nonlinearities and unknown parameters, although most studies are limited to numerical simulations. Furthermore, research with experimental validation often relies on high‐performance computing equipment, specialized data acquisition cards, and ...
Edgar H. Robles‐Sauceda, Felipe J. Torres, Antonio J. Balvantín‐García, Miroslava Cano‐Lara, Juan Pablo Ramírez, Israel Martínez   +5 more
wiley   +1 more source

Optimization of Performance and Efficiency of a Fuel-Flexible Free-Piston Linear Generator (FPLG) Engine for Range Extender Application

Energies
In today’s energy landscape, defined by the growing demand for sustainable energy generation technologies and the parallel need to advance internal combustion engine (ICE) architectures toward cleaner and more efficient solutions, the adoption of Free ...
Alex Scopelliti, Daniela A. Misul, Fabrizio Santonocito, Mirko Baratta   +3 more
doaj   +1 more source