Results 31 to 40 of about 107,466 (350)

Design and development of piston-controlled intake port for 4-stroke engine [PDF]

open access: yes, 2008
In a two stroke engine, piston control the intake port opening and closing that combine the intake and compression stroke in 1800 crank rotation. The operational concept of two stroke engine is applied to the existing four stroke engine cylinder head ...
Amran, Kaharudin
core  

Characteristics of the Limit Cycle of a Reciprocating Quantum Heat Engine [PDF]

open access: yes, 2004
When a reciprocating heat engine is started it eventually settles to a stable mode of operation. The approach of a first principle quantum heat engine toward this stable limit cycle is studied.
J. Wei   +5 more
core   +1 more source

The Aging Blood: Cellular Origins, Circulating Drivers, and Therapeutic Potential

open access: yesAging and Cancer, EarlyView.
As a conduit linking all organs, the blood system both reflects and actively drives systemic aging. This review highlights how circulating pro‐aging and antiaging factors and age‐associated hematopoietic stem cell dysfunction contribute to immunosenescence and multi‐organ decline, positioning the hematopoietic system as a target for aging intervention.
Hanqing He, Jianwei Wang
wiley   +1 more source

Experimental Investigation of Coconut and Palm Oils as Lubricants in Four-Stroke Engine

open access: yesTribology Online, 2011
In the present work the evaluation of coconut and palm oil as lubricants in four-stroke engine was carried out and the performance was compared with commercially available engine oil.
Jagadeesh K. Mannekote, Satish V. Kailas
doaj   +1 more source

Single-cylinder 125 CC stepped piston engine for mobility and portable power generation applications [PDF]

open access: yes, 2015
Two-stroke engines is far simpler than four-stroke version from its physical perspective. For a given brake output, two-stroke is lighter, easier to work on, and provide higher power-to-weight ratio than the four-stroke, making it suitable for small ...
Abdul Aziz, Azhar   +3 more
core  

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri   +7 more
wiley   +1 more source

Development of a Two-Stroke Cycle Engine for Use in the Agricultural Aviation Sector

open access: yesJournal of Aerospace Technology and Management, 2020
Reciprocating internal combustion engines have wide application in agricultural, recreational and experimental aircraft, resulting from their low cost and less complex maintenance compared to other engines.
Samara Herrmann   +2 more
doaj   +3 more sources

Experimental research of a four-stroke piston type compressed air engine

open access: yesE3S Web of Conferences, 2019
The purpose of this paper is to investigate working performance for a four-stroke piston type compressed air engine (CAE) via experimental research. A conventional internal combustion engine(IC engine) is modified to a four-stroke CAE and a mathematical ...
Zeng Fancong, Xu Jinli, Zhao Rui
doaj   +1 more source

The digital simulation of a turbo-charged diesel engine [PDF]

open access: yes, 1969
A mathematical simulation of a six cylinder four stroke water cooled diesel engine is described and then used to study the changes in performance caused by variations of engine paramters and operating conditions.
Hodgetts, D., Shroff, H. D.
core  

Discovery and Targeted Proteomic Studies Reveal Striatal Markers Validated for Huntington's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Clinical trials for Huntington's disease (HD) enrolling persons before clinical motor diagnosis (CMD) lack validated biomarkers. This study aimed to conduct an unbiased discovery analysis and a targeted examination of proteomic biomarkers scrutinized by clinical validation. Methods Cerebrospinal fluid was obtained from PREDICT‐HD and
Daniel Chelsky   +8 more
wiley   +1 more source

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