نتایج جستجو برای: biological corrosion

تعداد نتایج: 494394  

Journal: :Environmental science & technology 2016
Nazhen Liu Linda Wu Zack Qin David W Shoesmith

A 2-D model for the corrosion of spent nuclear fuel inside a failed nuclear waste container has been modified to determine the influence of various redox processes occurring within fractures in the fuel. The corrosion process is driven by reaction of the fuel with the dominant α radiolysis product, H2O2. A number of reactions are shown to moderate or suppress the corrosion rate, including H2O2 ...

2017
David A. Winkler

The withdrawal of effective but toxic corrosion inhibitors has provided an impetus for the discovery of new, benign organic compounds to fill that role. Concurrently, developments in the high-throughput synthesis of organic compounds, the establishment of large libraries of available chemicals, accelerated corrosion inhibition testing technologies, and the increased capability of machine learni...

2017
Guanqiao Su Xiuhua Gao

A cyclic wet/dry accelerated corrosion test was used to compare the corrosion behavior of medium-Mn steel and Q345 steel. In terms of scanning electron microscope (SEM), using X-ray diffraction (XRD), electron probe microanalysis (EPMA), X-ray photoelectron spectroscopy (XPS), and analysis of the corrosion process, the results showed that the medium-Mn steel did not exhibit higher corrosion res...

2013
Chen Xu Zhiyuan Li Weiliang Jin

The corrosion of reinforcements induced by chloride has resulted to be one of the most frequent causes of their premature damage. Most corrosion sensors were designed to monitor corrosion state in concrete, such as Anode-Ladder-System and Corrowatch System, which are widely used to monitor chloride ingress in marine concrete. However, the monitoring principle of these corrosion sensors is based...

1999
D G Harlow R P Wei S M Bruemmer E I Meletis R H Jones W W Gerberich F P Ford A K Kuruvilla

Introduction Reliable estimates indicate that corrosion of metals costs the US economy almost $300 billion per year or about 4% of the GNP. Corrosion is a pervasive problem that affects almost all sectors of the economy including transportation (bridges, automobiles, aircraft, ships, pipelines, etc.), energy (power plants, petrochemical industries etc.) and defense (naval applications, aging ai...

Journal: :Nanotechnology 2010
Marc P Raphael Joseph A Christodoulides Syed N Qadri Blake S Simpkins Jeff M Byers

Magnetic nanoparticles are used throughout biology for applications from targeted drug and gene delivery to the labeling of cells. These nanoparticles typically react with the biological medium to which they are introduced, resulting in a diminished magnetic moment. The rate at which their magnetic moment is diminished limits their utility for targeting and can signal the unintended release of ...

1999
David Robertson

E M A I L : a m p t i a c @ i i t r i . o rg Introduction The Air Force Corrosion Prevention and Control Office, located at Robins AFB, GA, and operated by the Air Force Research Laboratories’ Materials Directorate recently achieved a major milestone in demonstrating an aircraft corrosion prediction program. The AF Corrosion Prevention and Control Office accomplishes its mission by ensuring Air...

2017
Neha Singh Divya Singh

A Blast furnace is an investment in the future. It is necessary that there is the proper dimensioning of all the equipment, systems and components as well as incorporation of technologies which assure the desired production and quality so that improved performance of the blast furnace can be achieved. Gas is one of the major resources of nature. Gas distribution across any part is processed by ...

2013
Guodong Sun Guofu Qiao Lin Zhao Zhibo Chen

This study presents and implements a corrosion-monitoring wireless sensor platform, EPS (Events as Power Source), which monitors the corrosion events in reinforced concrete (RC) structures, while being powered by the micro-energy released from the corrosion process. In EPS, the proposed corrosion-sensing device serves both as the signal source for identifying corrosion and as the power source f...

2014
Akshatha Shetty Katta Venkataramana K. S. Babu Narayan

Corrosion is one of the main causes affecting durability of structures. Corrosion effects on structures cannot be ignored and replaced. To understand the performance of structures there is a need to study the rate at which different corrosion levels occur. Hence the present investigation has been taken up to study the behaviour of NBS (National Bureau of Standard) beam specimens made up of Ordi...

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