scholarly journals Part I: General Aspects of Corrosion, Corrosion Control, and Corrosion Prevention

2022 ◽  
pp. xxv-xlii
Author(s):  
Wael A. El Kholy

Corrosion directly affects our lives by reducing the integrity of possessions. All pipelines, even the best designed and maintained, deteriorate with time. The primary cause of this deterioration is corrosion. Corrosion in metal can be compared to cancer in human body. Both act very slowly without being easily visible and by the time one notices it, serious damage has been done. Owing to corrosion, billions of dollars are wasted in various industries, refineries, petrochemical plants and various underground pipelines and structures in the field of oil, gas, water etc. For the safety and integrity of underground pipelines it is imperative to adopt various methods of corrosion prevention to retard corrosion and thus increase the active working life of pipelines. This paper provides information about various types of corrosion and methods of both inline and outer surface corrosion inspection and monitoring. It also discusses means of pipeline protection, corrosion control and rehabilitation.


Author(s):  
R. J. Lee ◽  
J. S. Walker

Electron microscopy (EM), with the advent of computer control and image analysis techniques, is rapidly evolving from an interpretative science into a quantitative technique. Electron microscopy is potentially of value in two general aspects of environmental health: exposure and diagnosis.In diagnosis, electron microscopy is essentially an extension of optical microscopy. The goal is to characterize cellular changes induced by external agents. The external agent could be any foreign material, chemicals, or even stress. The use of electron microscopy as a diagnostic tool is well- developed, but computer-controlled electron microscopy (CCEM) has had only limited impact, mainly because it is fairly new and many institutions lack the resources to acquire the capability. In addition, major contributions to diagnosis will come from CCEM only when image analysis (IA) and processing algorithms are developed which allow the morphological and textural changes recognized by experienced medical practioners to be quantified. The application of IA techniques to compare cellular structure is still in a primitive state.


2019 ◽  
Vol 68 (2) ◽  
pp. 35-35
Author(s):  
Kenkichi Tashiro
Keyword(s):  

During his lifetime, Nikolai Rimsky-Korsakov (1844–1908) was a composer whose work had great influence not only in his native Russia but also internationally. While he remains well-known in Russia—where many of his fifteen operas and various orchestral pieces are still in the standard repertoire—very little of his work is performed in the West today beyond Scheherezade and arrangements of The Flight of the Bumblebee. In Western writings, he appears mainly in the context of the Mighty Handful, a group of five Russian composers to which he belonged at the outset of his career. This book finally gives the composer center stage and due attention. In this book, Rimsky-Korsakov's major operas, The Snow Maiden, Mozart and Salieri, and The Golden Cockerel, receive multifaceted exploration and are carefully contextualized within the wider Russian culture of the era. The discussion of these operas is accompanied and enriched by the composer's letters to Nadezhda Zabela-Vrubel, the distinguished soprano for whom he wrote several leading roles. Other chapters look at more general aspects of Rimsky-Korsakov's work and examine his far-reaching legacy as a professor of composition and orchestration, including his impact on his most famous pupil Igor Stravinsky.


Sign in / Sign up

Export Citation Format

Share Document