where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -
540 views
Technical Discussions
JACKY CHEN
Engineering
Taiwan, Province of China, Joined Aug 2002, 5

JACKY CHEN

Engineering
Taiwan, Province of China,
Joined Aug 2002
5
06:08 Mar-24-2003
EXTREME VALUE STATISTIC

Dear all:

Can anybody tell me what is the "Extreme Value Statistic" means? Also, could anybody tell me where I can get sone information about the "Extreme Value Statictics"?


 
 Reply 
 
Kris Van de Rostyne
Kris Van de Rostyne
06:49 Mar-24-2003
Re: EXTREME VALUE STATISTIC
: Dear all:
.
: Can anybody tell me what is the "Extreme Value Statistic" means? Also, could anybody tell me where I can get sone information about the "Extreme Value Statictics"?
.
Hello,
Extreme value statistics is used in NDT to describe the statistical behavior of local corrosion phenomena like e.g. pitting corrosion. E.g. Leaking of a container will result as soon as ONE ('extreme') pit is as large as the container wall thickness. To predict a maximum expected pit depth from a limited set of measurements, extreme value calculations are required. Care should be taken when sampling the data.
Details can be found in:
*”Introduction to life prediction of industrial plant materials: Application of the extreme value statistical method for corrosion analysis”, editor M. Kowaka, Allerton Press Inc., 1994
*”Extremes: Statistical Theory and Applications in Science, Engineering and Economics”, Editor-in-Chief: H. Rootzén, Kluwer, 1999

Hope this helps,

Kris




 
 Reply 
 
F.Mustapha
F.Mustapha
00:27 Apr-21-2005
Re: EXTREME VALUE STATISTIC
: : Dear all:
: .
: : Can anybody tell me what is the "Extreme Value Statistic" means? Also, could anybody tell me where I can get sone information about the "Extreme Value Statictics"?
: .
: Hello,
: Extreme value statistics is used in NDT to describe the statistical behavior of local corrosion phenomena like e.g. pitting corrosion. E.g. Leaking of a container will result as soon as ONE ('extreme') pit is as large as the container wall thickness. To predict a maximum expected pit depth from a limited set of measurements, extreme value calculations are required. Care should be taken when sampling the data.
: Details can be found in:
: *”Introduction to life prediction of industrial plant materials: Application of the extreme value statistical method for corrosion analysis”, editor M. Kowaka, Allerton Press Inc., 1994
: *”Extremes: Statistical Theory and Applications in Science, Engineering and Economics”, Editor-in-Chief: H. Rootzén, Kluwer, 1999
.
: Hope this helps,
.
: Kris
.

Principle Component Analysis (PCA) is one of EVS methods that have the capability to reduce dimension in vectorial form of data. Try any search engine to get this definition or if you're in doubt you can contact me and i'll send few journals paper that relates with this statistical approaches.

cheers



 
 Reply 
 

Product Spotlight

Cygnus 6+ PRO Multi-Mode Ultrasonic Thickness Gauge

The Cygnus 6+ PRO thickness gauge is the most advance gauge within the Cygnus range with key featu
...
res including: comprehensive data logging; A-scan and B-scan display; manual gain control; Bluetooth connectivity; and much more. With its unique dual display and three measuring modes (Multiple-Echo, Echo-Echo and Single-Echo), this surface thickness gauge offers maximum versatility for inspections.
>

TraiNDE UT

TraiNDE UT is a virtual tool associated with a signal database which simulates real inspection con
...
ditions for numerous applications (Type A/V1 block, DAC block, welds and plates).
>

SITEX CPSERIES

Teledyne ICM’s CPSERIES has been designed with a view to revolutionizing the handling and perfor
...
mances of portable X-Ray sets. Despite having managed to halve the weight of similar portable X-Ray generators available on the market (while continuing to provide the same power output), the SITEX CPSERIES generators feature a shutter, a laser pointer, a beryllium window, an aluminum filter and two integrated diaphragms (customized sizes are available upon request). Without compromising the robustness and reliability for which ICM products are renowned, the small size and light weight of the SITEX CPSERIES will radically change the way that you perform your RT inspections. And you will see a positive impact in terms of both quality and return on investment (ROI).
>

ISONIC 3510

Very Powerful Superior Performance Extremely Portable Smart Phased Array Ultrasonic Flaw Detector an
...
d Recorder with 2 Conventional UT and TOFD Channels uniquely combines PA, single- and multi-channel conventional UT, and TOFD modalities providing 100% raw data recording and imaging. Suitable for all kinds of every-day ultrasonic inspections
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window