نتایج جستجو برای: corrosive effect

تعداد نتایج: 1644035  

2015
M. E. Escalante-Perez J. G. Gonzalez-Rodriguez L. Martinez-Gomez

Atmospheric corrosion occurs under alternate cycles in presence and absence of an electrolyte layer, the severity of corrosion processes that occur onto the metallic surface depends largely on the corrosive environment to which the material is exposed. Whereas the corrosive phenomena occur in the presence of the electrolyte, in this work the effect of the depth of the solution layer on the elec...

Since martensitic precipitation hardened 17-4pH stainless steel has been widely used in corrosive environments, evaluation of its corrosion fatigue behavior is important. In this research, after microstructural studies, mechanical, corrosion, fatigue and corrosion fatigue tests were performed on 17-4pH specimens. Fatigue and corrosion fatigue tests were carried out at the  stress ratio of -1 an...

Journal: :Ulusal travma ve acil cerrahi dergisi = Turkish journal of trauma & emergency surgery : TJTES 2017
Ceren Şen Tanrıkulu Yusuf Tanrikulu Fahriye Kılınç Burak Bahadır Murat Can Füruzan Köktürk

BACKGROUND Corrosive esophageal burns, particularly common in developing countries, lead to different problems in different age groups. The ingestion of corrosive substances can cause such problems as stricture of the esophagus, to acute perforation, and even death. Because stricture formation is related to the severity of the initial injury, the prevention of stricture constitutes a main goal ...

2005
Lance R. Lewand

Corrosive sulfur and the effect that it has in transformer systems can be significant. The extent of the corrosion damage caused by sulfur, if left unchecked, can be so severe as to cause failure of the apparatus. The problems with corrosive sulfur have been recognized for quite some time. As early as 1948, F.M. Clark and E.L. Raab [1] issued a report on the subject for method development withi...

Journal: :The Tohoku journal of experimental medicine 2005
Salih Somuncu Murat Cakmak Sibel Erdogan Osman Caglayan Hülya Akman Murat Kaya

Corrosive esophageal burn is a common health problem in the pediatric age group and causes serious esophageal injuries. The medical treatment in acute phase of corrosive esophageal injury is of particular importance for prevention of esophageal stricture. We therefore aimed to investigate the possible beneficial effect of trapidil (triazolopyrimidine), an inhibitor for phosphodiesterase and pla...

Journal: :Janapriya Journal of Interdisciplinary Studies 2017

Journal: :Chest 1972
L L Davis J Raffensperger G M Novak

The ingestion of corrosive agents frequently produces adverse effect on the esophagus and the stomach or on both. Agents of alkaline pH usually result in esophageal injury, and agents of acid pH often cause gastric damage. Squamous epithelium lining the esophagus is sensitive to alkaline agents; however, alkaline agents upon reaching the stomach are rapidly neutralized by the gastric acidity of...

2017
Yueting Liu

The wear of pipelines, used in slurry transport, results in high costs for maintenance and replacement. The wear mechanism involves abrasion, corrosion, impact, and the interaction among them. In this work, we study the effect of impact on the wear mechanism and wear rate. Results show that when the effect of impact is small, the wear mechanism is dominated by electrochemically induced surface ...

Journal: :Annali italiani di chirurgia 2013
Mehmet Yasar Ali Kemal Taskin Bulent Kaya Metin Aydin Ismet Ozaydin Abdulkadir Iskender Havva Erdem Handan Ankatali Hayati Kandis

AIM Corrosive esophageal burns are still an important problem. The aim of this study was to evaluate the effect of kefir in an experimental corrosive esophagitis model. MATERIAL AND METHOD Twenty-four male wistar albino rats were used in this experimental study. The rats were randomized into three groups according to the procedure and treatment type (each group has eight rats). Group I: (Cont...

2016
Chuan-Mei Chen Yueh-Chin Chung Li-Hung Tsai Yi-Chen Tung Horng-Mo Lee Mei-Ling Lin Hsin-Li Liu Woung-Ru Tang

Corrosive injury results from the intake of corrosive-acid-based chemicals. However, this phenomenon is limited to a small number of cases and cannot be extrapolated to the epidemiology of corrosive injuries in actual situations. This study focuses on the annual incidence of corrosive injury and its connection to gender, risk factors, and in-hospital mortality. All patients with corrosive injur...

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