Results 81 to 90 of about 53,861 (307)
A device for releasing a piston corer and deactivating the piston [PDF]
Deep Sea Research and Oceanographic Abstracts, 1967 Abstract A device is described for releasing a piston corer, holding the piston cable during free fall and penetration, and deactivating the piston by dropping the piston cable. Combined in the instrument are a cocking and triggering device, a safety catch, and a closed-system timing cylinder with a needle valve that controls circulation of oil and ...
openaire +1 more source
Three‐dimensional geometric morphometric analysis of diaphragmatic dome motion in COPD patients
The Anatomical Record, EarlyView.Abstract Diaphragmatic dysfunction is a hallmark of chronic obstructive pulmonary disease (COPD), especially in emphysema, where hyperinflation alters diaphragm geometry and impairs inspiratory mechanics. However, quantitative three‐dimensional (3D) assessments of diaphragmatic dome shape and motion across COPD phenotypes are limited.
José M. López‐Rey +5 more
wiley +1 more source
MetalsThe structural reliability of pistons operating under severe thermo-mechanical loading strongly depends on the properties of the selected Al–Si alloy. This study presents an integrated experimental–numerical investigation of hypereutectic Al–Si alloys ...
Atanasi Tashev +4 more
doaj +1 more source
Clade‐wide morphological and functional variation of the sauropsid columella
The Anatomical Record, EarlyView.Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock +4 more
wiley +1 more source
Mathematical model of combined parametrical analysis of indicator process and thermal loading on the Diesel engine piston [PDF]
Transport, 2004 In the publication the methodical aspects of a mathematical model of the combined parametrical analysis of an indicator process and thermal loading on the diesel engine piston have been considered.
G. Lebedeva, S. Lebedevas
doaj
A modified light weight piston corer for sampling soft lake sediment [PDF]
, 1988 D. J. Douglas
openalex +1 more source
Two‐Handed Knot Tying Technique for Arthroscopic Surgeries
Arthroscopy Techniques, EarlyView.Abstract Knot tying is a widely used and essential technique in arthroscopic tissue repair and fixation. Although it shows perceived simplicity, its technical complexity exceeds that of open surgery due to the challenges of suture fixation within confined intra‐articular spaces and demanding execution requirements.
Chuan Zhang, Ming‐Ming Dong
wiley +1 more source
Study of Corrosion in Diesel Engine Piston by Soybean Biodiesel and its Mixtures
Orbital: The Electronic Journal of Chemistry, 2019 Of the renewable energy sources, which are less polluting and with the same efficiency of petroleum products, we highlight biodiesel, a renewable and promising source of clean energy, which is now being added in small quantities to commercial diesel used
Fernanda Beatriz Aires de Freitas +2 more
doaj
Insight of Elementary Steps on the Polyethylene and Polypropylene Co‐Pyrolysis
Carbon and Hydrogen, EarlyView.Pyrolysis of PP initiates first, accelerating PE cracking via secondary radical transfer, leading to n‐hydrocarbon yield enhancement. Py–GC/MS and nanoreactor computation are in agreement on the elementary step proposal. ABSTRACT Pyrolysis with gas chromatography & mass spectrometry (Py–GC/MS) technique was employed to analyze the yield variation of ...
Naiwen Xu +6 more
wiley +1 more source