Results 111 to 120 of about 206,979 (310)

Data Compression and Encryption Fusion: A Review of Hybrid Techniques for Secure and Efficient Online Transmission

open access: yesIEEE Access
With the exponential growth of digital data, ensuring efficient and secure online file transmission has become a significant challenge. This study presents a comprehensive analysis of hybrid compression-encryption techniques, evaluating their impact on ...
Lei Zhao   +4 more
doaj   +1 more source

Effect on higher compression ratio on unmodified CI engine powered by biodiesel blend

open access: diamond, 2023
B. Anbarasan   +3 more
openalex   +2 more sources

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Comparison of Practical Investigations for CO Emissions Emitted From Single Cylinder S. I. Engine Fueled With Different Kinds of Hydrocarbon Fuels and Hydrogen

open access: yesAl-Khawarizmi Engineering Journal, 2011
Liquefied petroleum gas (LPG), Natural gas (NG) and hydrogen were all used to operate spark ignition internal combustion engine Ricardo E6. A comparison of CO emissions emitted from each case, with emissions emitted from engine fueled with gasoline as a ...
Khalil Ibrahim Abaas
doaj  

Influence of Compression Ratio on Combustion and Emission Characteristics of Hydrogen Internal Combustion Engines Under Different Excess Air Coefficients

open access: yesEnergies
Hydrogen internal combustion engines (H2-ICEs) are a promising solution for decarbonizing heavy-duty transportation. This study investigates the effects of compression ratio (CR: 9, 11, 13) and excess air ratio (λ: 1–5) on the performance, emissions, and
Diming Lou, Yixuan Liu, Yunhua Zhang
doaj   +1 more source

Practical research of the angle of thermodynamic losses when indicating pressure in the cylinder diesel engine [PDF]

open access: yesScientific Technical Review, 2015
Very important literary source for the study of work processes in the engine cylinders, for decades, has been an article by Günter Hohenberg 'Definition und Eigenschaften des termodinamischen Verlust-winkels von Kolbenmaschinen', published in 1976 in the
Bulatović Željko   +2 more
doaj  

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

open access: yesAdvanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

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