Results 221 to 230 of about 160,144 (264)
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Penetrations in Shells Under External Pressure
Journal of Engineering for Industry, 1970Penetrations, in the pressure-resistant structure of a submersible, disturb the stress condition in the shell and may cause a premature failure. In this paper, two types of finite-element solutions are used to predict the stress distribution near view port openings in spherical shells under external pressure. Results of experimental stress analyses are
L. F. Greimann, R. C. DeHart
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Inspections of pressure vessel head penetrations
Nuclear Engineering and Design, 1995The problem of cracks in CRDM vessel head penetrations calls for specific inspection techniques to detect potential defects in such nozzles without dismantling the CRDMs and the thermal sleeve. Using specific, thin eddy current coils, defects have been detected with a depth of less than 1 mm.
F. D'Annucci, G. Bäro, A. Assice
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PREDICTION OF PORE PRESSURE FROM PENETRATION RATE
Proceedings of Fall Meeting of the Society of Petroleum Engineers of AIME, 1968American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc. This paper was prepared for the 43rd Annual Fall Meeting of the Society of Petroleum Engineers of AIME, to be held in Houston, Tex., Sept. 29-Oct. 2, 1968. Permission to copy is restricted to an abstract of not more than 300 words. Illustrations may not be copied.
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Pore pressure observation: pressure response of probe penetration and tides
Acta Oceanologica Sinica, 2019Excess pore water pressure is an important parameter that can be used to analyze certain physical characteristics of sediment. In this paper, the excess pore water pressure of subseafloor sediment and its variation with tidal movement was measured following the installation of a wharf in Qingdao, China by using a fiber Bragg grating (FBG) piezometer ...
Tao Liu, Guanli Wei, Hailei Kou, Lei Guo
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Intraocular Pressure and Corneal Thickness After Penetrating Keratoplasty
American Journal of Ophthalmology, 1978We correlated the intraocular pressure readings and measurements of corneal thickness in 71 patients who had had penetrating keratoplasties and found that in the acute post keratoplasty period, increased intraocular pressure caused corneal thinning rather than thickening.
R J, Olson, H E, Kaufman
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Jet penetration in a pressurized fluidized bed
Industrial & Engineering Chemistry Fundamentals, 1981A correlation has been developed which, with engineering accuracy, correlates the jet penetration data available in the literature obtained from fluidized beds of sand (/rho/sub //p.2629 kg/m/sup 3/), FMC char (/rho/sub //p.1158 kg/m/sup 3/), and siderite (/rho/sub //p.3988 kg/m/sup 3/) at pressures ranging up to 5300 kPa (approximately 53 atm).
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Turgor pressure and the mechanics of fungal penetration
Canadian Journal of Botany, 1995This article explores the relationship between cellular turgor pressure and mechanisms used by fungi to invade solid substrates. In the oomycete Saprolegnia ferax, the rate of hyphal growth through solid medium decreases as turgor is reduced and the effect is most pronounced at high agar concentrations.
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Vaginal penetration pressure: a parameter in impotence diagnosis?
World Journal of Urology, 1986Vaginal penetration pressure (VPP) has been defined as the pressure recorded by introducing a truncated probe (diameter 2.9 cm) 5 cm into the vagina. A total of six women participated in this study, and pressure was recorded in the supine and kneeling positions.
Gorm Wagner +2 more
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Ion penetration and diffusion technique at atmospheric pressure
Surface and Coatings Technology, 2007Abstract The ion penetration and diffusion technique with enhanced dielectric barrier discharge at atmospheric pressure is put forward in this paper. The fundamentals and characteristics of the ion penetration and diffusion technique are enlarged upon. The authors conducted some theoretical analysis and calculations.
Xinhe Zhu, Zhijun Yan, Jiujun Xu
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STRUCTURAL PROBLEMS IN PENETRATED SPHERES UNDER PRESSURE
Naval Engineers Journal, 1967ABSTRACTThrough the use of three‐dimensional photoelasticity, studies have been conducted on the stresses in hatches, windows, and adjacent regions in penetrated spheres under external pressure for use in deep submergence structures.It was found, for tapered plug hatches and stiff “windows” with a low chamfer angle of 15° or less (measured from a local
JOHN VASTA +3 more
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