Results 91 to 100 of about 149,108 (355)

Research of Exhaust Emissions from a Harvester Diesel Engine with the Use of Portable Emission Measurement System

open access: yesCroatian Journal of Forest Engineering, 2013
This paper presents the test results of exhaust emissions from the engine of a wheeled harvester. On the basis of the present analysis, the ranges of most frequently used engine loads and speeds were determined. The obtained time density characteristics (
Jerzy Merkisz   +2 more
doaj  

Specifications for modelling fuel cell and combustion-based residential cogeneration device within whole-building simulation programs [PDF]

open access: yes, 2007
This document contains the specifications for a series of residential cogeneration device models developed within IEA/ECBCS Annex 42. The devices covered are: solid oxide and polymer exchange membrane fuel cells (SOFC and PEM), and internal combustion ...
Beausoleil-Morrison, Ian, Kelly, Nick
core   +1 more source

Generalized Mechanism Model for Ecosystem Hysteresis

open access: yesAdvanced Science, EarlyView.
A simplified model examines ecosystem transitions into alternative states after disturbances by leveraging positive and negative feedbacks. It identifies critical tipping points and quantifies hysteresis. Tests conducted on lakes, grasslands, and pitcher‐plant leaves align closely with empirical data and enable the prediction of recovery trajectories ...
Yanbin Hao   +9 more
wiley   +1 more source

Flow Field Influence Analysis of Combination Intake Port to Port and In-Cylinder for a Four-Valve Diesel Engine

open access: yesJournal of Applied Fluid Mechanics, 2019
Intake port structure directly affects the flow characteristics and combustion process of diesel engine, and then affects the comprehensive performance of diesel engine.
D. W. Jia   +3 more
doaj  

Advancing renewable fuel integration: A comprehensive response surface methodology approach for internal combustion engine performance and emissions optimization. [PDF]

open access: yesHeliyon, 2023
Siaw Paw JK   +11 more
europepmc   +1 more source

Edible Pneumatic Battery for Sustained and Repeated Robot Actuation

open access: yesAdvanced Science, EarlyView.
This work presents an edible energy source and valve system to power soft, pneumatically driven edible robots. A chemical reaction between sodium bicarbonate and citric acid generates carbon dioxide gas, and a pressure‐triggered edible valve enables self‐repetitive motion of the edible actuator.
Bokeon Kwak   +5 more
wiley   +1 more source

Techno-economic assessment and strategic proposal for designing and optimizing the required powered battery for an electric motorcycle under varying driving cycle tests

open access: yesInternational Journal of Renewable Energy Development
Recently, many countries have committed to achieving net-zero emissions by 2050, making the adoption of electric motorcycles increasingly significant.
Tan-Thich Do, Tan-Ngoc Dinh, Vinh-Dat Ly
doaj   +1 more source

Characteristics and mechanism of NOx emission of hydrogen fueled internal combustion engine

open access: yesJournal of Hebei University of Science and Technology, 2017
In order to deeply study the NOx formation mechanism of hydrogen fueled internal combustion engine (HICE), a hydrogen fueled internal combustion engine CFD simulation model including three-dimensional gridding coupling detailed chemical reaction ...
Hairong ZHU   +3 more
doaj   +1 more source

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