Sudden enlargement of the neck

2019 ◽  
Vol 211 (2) ◽  
pp. 62-62
Author(s):  
Lucien Marchand
Keyword(s):  
Sudden Enlargement

scholarly journals A Case of a Cavitary Iris Melanoma with Aqueous Cytological Modulation

2018 ◽  
Vol 5 (3) ◽  
pp. 171-175
Author(s):  
Lindsay A. McGrath ◽  
James F. Bacon ◽  
Paul Rundle ◽  
Ian G. Rennie ◽  
Hardeep Singh Mudhar
Keyword(s):  
Malignant Melanoma ◽  
Adjuvant Treatment ◽  
Small Proportion ◽  
Excisional Biopsy ◽  
Malignant Tumour ◽  
Iris Melanoma ◽  
Pigmented Lesion ◽  
Sudden Enlargement ◽  
Uveal Melanomas

Malignant melanoma is the most common primary malignant tumour of the iris, but represents a small proportion of all uveal melanomas. The authors describe a 34-year-old male with a pigmented lesion of the iris. The lesion remained stable for 7 years, but the patient re-presented after this time with sudden enlargement of the mass and hyphaema. Excisional biopsy confirmed cavitary melanoma of the iris. This is the first reported case of cavitation in a primary iris melanoma. The patient has not had any further adjuvant treatment and remains metastasis free at 5 years of follow-up.

scholarly journals Study of Compressible High Speed Gas Flow in Piping System : 2nd Report, Piping Systems with Sudden Enlargement

1980 ◽  
Vol 23 (186) ◽  
pp. 2005-2012 ◽  
Author(s):  
Takaaki MORIMUNE ◽  
Naomichi HIRAYAMA ◽  
Toshiyuki MAEDA
Keyword(s):  
High Speed ◽  
Gas Flow ◽  
Piping System ◽  
Piping Systems ◽  
Sudden Enlargement

Sudden Area Enlargement Pressure Recovery with Inflow Distortion

1968 ◽  
Vol 72 (687) ◽  
pp. 243-244 ◽  
Author(s):  
R. A. Tyler ◽  
R. G. Williamson
Keyword(s):  
Velocity Distribution ◽  
Pressure Recovery ◽  
Straight Pipe ◽  
Entry Velocity ◽  
Sudden Enlargement ◽  
General Velocity

Pressure recovery measurements in a straight pipe with crossflow-generated entry velocity distributions suggested substantial effects of inflow distortion on the pressure recovery downstream of a sudden enlargement in area. This note reports results of actual measurements in the same pipe equipped with entry sections of various reduced diameters providing sudden area enlargement ratios of 1.33, 1.71, 2.04, and 3.52. The results have practical bearing on the performance of settling pipes located at diffuser exits where, in general, velocity distributions are significantly non-uniform. In addition, the results provide information on the momentum content of the crossflow-generated velocity distribution.

scholarly journals Self-excited Oscillations of Supersonic Flow in a Sudden Enlargement of a Duct

1980 ◽  
Vol 23 (186) ◽  
pp. 1982-1989 ◽  
Author(s):  
Takefumi IKUI ◽  
Kazuyasu MATSUO ◽  
Hiroaki MOCHIZUKI
Keyword(s):  
Supersonic Flow ◽  
Sudden Enlargement

scholarly journals COVID19 PATIENTS WITH ABDOMINAL AORTIC ANEURYSM MAY BE AT HIGHER RISK FOR SUDDEN ENLARGEMENT AND RUPTURE.

2021 ◽  
Author(s):  
Antonio Bozzani ◽  
Vittorio Arici ◽  
Mariamila Franciscone ◽  
Giulia Ticozzelli ◽  
Antonio V. Sterpetti ◽  
...  
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Abdominal Aortic ◽  
Sudden Enlargement

scholarly journals Self-Induced Flow in a Stepped Rotating Tube

1991 ◽  
Author(s):  
S. Gilham ◽  
P. C. Ivey ◽  
J. M. Owen
Keyword(s):  
Experimental Study ◽  
Fluid Flows ◽  
Reynolds Numbers ◽  
The Self ◽  
The Other ◽  
Inner Surface ◽  
Sudden Contraction ◽  
Sudden Enlargement ◽  
Induced Flow ◽  
Nonisothermal Conditions

Self-induced flow occurs when a tube, open at one end and sealed at the other, is rotated about its central axis: fluid flows along the axis from the open end towards the sealed end and returns in a layer adjacent to the inner surface of the tube. This mechanism, which can occur under isothermal or nonisothermal conditions, is believed to be responsible for the so-called “hot-poker effect” that was observed during anti-icing tests on the nose bullet of an aeroengine. This paper describes a combined theoretical and experimental study of self-induced flow. It is shown that, for the length-to-diameter (L/D) ratios and rotational Reynolds numbers associated with the anti-icing tubes of aeroengines, the laminar flow near the sealed end of the tube is similar to that of the so-called free disc. Swirl in the air outside the open end reduces the self-induced flow, but flow can reach the sealed end of a stepped tube which has either a sudden contraction or a sudden enlargement.

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