نتایج جستجو برای: pitting

تعداد نتایج: 2649  

Journal: :Clinical and experimental rheumatology 2001
F Cantini C Salvarani I Olivieri L Macchioni L Niccoli A Padula C Falcone L Boiardi A Bozza L Barozzi P Pavlica

OBJECTIVE To evaluate the frequency and the clinical characteristics of distal extremity swelling with pitting edema in patients with psoriatic arthritis (PsA). METHODS This was a case-control study of consecutive outpatients with PsA (old and new diagnosis) observed over a 3-month period in three secondary referral centers in Italy. As controls we used the two consecutive rheumatic outpatien...

2011
M. Urquidi - Macdonald D. D. Macdonald

Pennsylvania State University, University Park, PA 16802 Various attempts have been made (o develop models for predicting the development of damage in metals and alloys due to pitting corrosion. These muOcIs may be divided into two cliu.ses: the cmpirieiil approach which employ.s extreme value statistics, and the deterministic approach based on perceived mechanisms for nuclcation and growth of ...

2004
T. Sourisseau E. Chauveau B. Baroux

The influence of the addition of copper on the resistance to pitting corrosion of stainless steels has been investigated using different experimental techniques––current transient analysis, polarization curves in acidic media, pitting and repassivation potential measurements, XPS and SEM observations––so that pit initiation, propagation and repassivation could be analysed separately. Copper add...

2015
Yu Zuo Shiwen Wang Yuming Tang Yong Zhou

The inhibition mechanism of sodium oleate (C17H33COONa) for pitting corrosion of aluminum alloy (AA) 2024 in 0.1 mol L NaCl solution was investigated using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), scanning electron microscopy with energy dispersive spectrometer (SEM-EDS) and X-ray photoelectron spectroscopy (XPS). C17H33COONa showed good inhibition effect on u...

2014
Dragos Axinte Athanasios Kolios Sumant Srikanth Konstantinos Salonitis

Pitting corrosion is an insidious form of localized corrosion a ecting characteristics of various engineering metallic alloys. Currently very limited literature exists with regard to systematic characterization of pitted surfaces or the efficient use of numerical methods to assess its effect, i.e. fatigue life reduction caused by the state of a corroded specimen and particularly through the stu...

Journal: :JCP 2012
Hong Men Jing Zhang Lihua Zhang

In this paper, the level of corrosion and the corrosion rate of 304 stainless steel induced by sulfatereducing bacteria were studied using electrochemical noise. The noise data were analyzed by time domain and frequency domain combined with the observations of optical microscope. And the corrosion was divided into four categories: passivation, pitting induction period, pitting and uniform corro...

2010
Anna J. Hartley Jessica Manson Ali S.M. Jawad

Remitting seronegative symmetrical synovitis with pitting oedema (RS3PE) is a rare rheumatologic condition frequently missed but easily treated. We describe a case of RS3PE and explore the literature surrounding this arthritis.

Chalamalasetti Srinivasa Rao Damera Nageswara Rao Kondapalli Siva Prasad

Austenitic stainless steel sheets have gained wide acceptance in the fabrication of components, which require high temperature resistance and corrosion resistance such as metal bellows used in expansion joints in aircraft, aerospace and petroleum industries. In the case of single pass welding of thinner sections of this alloy, Pulsed Current Micro Plasma Arc Welding (PCMPAW) has been found bene...

2003
Joseph Kennady R. M. Krishnan

he wide use of nickel coatings is T due to their valuable properties.l-2 Nickel coatings are used primarily for decorative and industrial purposes. The uses of nickel in the decorative field are. numerous including automobile parts, fumiture, general hardware and fasteners, bicycles, as undercoats in low-cost jewelry, sporting equipment, toys, cutlery, lamps and plumbing fixtures. Most of the d...

Journal: :Plastic and reconstructive surgery 2015
Håkan Brorson

BACKGROUND: Patients with chronic non-pitting lymphedema do not respond to conservative treatment because diminished lymph flow and inflammation result in the formation of excess subcutaneous adipose tissue. Previous surgical treatments utilizing either total excision with skin grafting or reduction plasty seldom achieved acceptable cosmetic and functional results. Microsurgical reconstructions...

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