Results 51 to 60 of about 97,900 (124)

Optimization of Fuel Injection Control System of Two-Stroke Aeroengine of UAV

open access: yesComplexity, 2020
Power efficiency of two-stroke spark-ignition engine is generally low because improper amount of fuel injection leads to a lot of unburned fuel loss during the engine working process.
Yixuan Wang   +6 more
doaj   +1 more source

THE EFFICIENCY OF WORKING CYCLES IN THE RAPID INTERNAL COMBUSTION ENGINE WITH THE EXTENDED WORKING STROKE

open access: yesNauka ta progres transportu, 2020
Purpose: The investigation covers the efficiency of working cycles in the rapid internal combustion engine with the extended working stroke. The extended working stroke is applied in so-called Atkinson/Miller engines that are considered to be more ...
P. М. Hashchuk, S. V. Nikipchuk
doaj   +1 more source

Towards a Systems Engineering Essence [PDF]

open access: yesarXiv, 2015
SEMAT/OMG Essence provides a powerful Language and a Kernel for describing software development processes. How can it be tweaked to apply it to systems engineering methods description? We must harmonize Essence and various systems engineering standards in order to provide a more formal system approach to obtaining a Systems Engineering Essence. In this
arxiv  

Mathematical modeling of the two-stroke crankcase scavenged spark ignition engine working process

open access: yesEnergy Conversion and Management: X, 2021
A simulation for the analysis of the working process of two-stroke crankcase scavenged SI (spark ignition) engine is introduced. For this work, the entire work process is divided into the intake process in the carburetor, combustion process and the ...
Tong Ho Choe   +3 more
doaj  

Top-down Paradigm in Engineering Software Integration [PDF]

open access: yesarXiv, 2009
The top-down approach of engineering software integration is considered in this parer. A set of advantages of this approach are presented, by examples. All examples are supplied by open source code.
arxiv  

Teaching cloud computing: a software engineering perspective [PDF]

open access: yesarXiv, 2012
This short papers discusses the issues of teaching cloud computing from a software engineering rather than a business perspective. It discusses what topics might be covered in a senior course on cloud software engineering.
arxiv  

Adapted Speed Control of Two-Stroke Engine with Propeller for Small UAVs Based on Scavenging Measurement and Modeling

open access: yesAerospace
The speed of the engine–propeller directly determines the power output for Unmanned Aerial Vehicles (UAV) with internal combustion engines. However, variable air pressure can impact the engine’s air exchange and combustion processes, causing minor ...
Yifang Feng   +3 more
doaj   +1 more source

FEM analysis of piston for aircraft two stroke diesel engine

open access: yesMATEC Web of Conferences, 2019
The paper presents an analysis of piston thermal loads in an opposed piston engine. The purpose of the work was to check the achieved thermal values of different piston models. Two types of pistons were analysed.
Magryta Paweł, Gęca Michał
doaj   +1 more source

What Users See - Structures in Search Engine Results Pages [PDF]

open access: yesarXiv, 2015
This paper investigates the composition of search engine results pages. We define what elements the most popular web search engines use on their results pages (e.g., organic results, advertisements, shortcuts) and to which degree they are used for popular vs. rare queries. Therefore, we send 500 queries of both types to the major search engines Google,
arxiv  

Software Engineering at Google [PDF]

open access: yesarXiv, 2017
We catalog and describe Google's key software engineering practices.
arxiv  

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