Two non-destructive techniques for determining the sex of live adult Hylobius warreni

2008 ◽  
Vol 140 (5) ◽  
pp. 617-620 ◽  
Author(s):  
Petter Öhrn ◽  
Matthew Klingenberg ◽  
Gareth Hopkins ◽  
Niklas Björklund
Keyword(s):  
Abdominal Sternite ◽  
Non Destructive ◽  
Root Collar ◽  
Non Destructive Techniques

AbstractTwo non-destructive sexing techniques suitable for use in the field and laboratory are described, and tested with the Warren root collar weevil, Hylobius warreni Wood (Coleoptera: Curculionidae). On the second visible abdominal sternite of males is a longitudinal depression that is absent on females. In addition, setae on the last visible abdominal sternite of females are arranged longitudinally; setae on males are arranged radially. For the first character, accuracy was 90% and sex could be determined without the aid of magnification. The latter character was slightly more reliable, at 95% accuracy, but required at least 12× magnification.

How to combine several non-destructive techniques for a better assessment of concrete structures

2008 ◽  
Vol 38 (6) ◽  
pp. 783-793 ◽  
Author(s):  
D. Breysse ◽  
G. Klysz ◽  
X. Dérobert ◽  
C. Sirieix ◽  
J.F. Lataste
Keyword(s):  
Concrete Structures ◽  
Non Destructive ◽  
Non Destructive Techniques

First-time observation of Mastro Giorgio masterpieces by means of non-destructive techniques

2006 ◽  
Vol 83 (4) ◽  
pp. 475-483 ◽  
Author(s):  
G. Padeletti ◽  
G.M. Ingo ◽  
A. Bouquillon ◽  
S. Pages-Camagna ◽  
M. Aucouturier ◽  
...  
Keyword(s):  
Time Observation ◽  
First Time ◽  
Non Destructive ◽  
Non Destructive Techniques

scholarly journals Investigation of new volumetric non-destructive techniques to characterise additive manufacturing parts

2018 ◽  
Vol 62 (5) ◽  
pp. 1049-1057 ◽  
Author(s):  
A-F. Obaton ◽  
M-Q. Lê ◽  
V. Prezza ◽  
D. Marlot ◽  
P. Delvart ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Non Destructive ◽  
Non Destructive Techniques

Experiences in Examining and Dispositioning Flaws in Zr-2.5Nb Pressure Retaining CANDU Reactor Components

2002 ◽  
Author(s):  
Andrew Celovsky ◽  
John Slade
Keyword(s):  
Service Life ◽  
Reactor Core ◽  
Pressure Tube ◽  
Candu Reactors ◽  
Periodic Inspection ◽  
Pressure Tubes ◽  
Surveillance Programs ◽  
Non Destructive ◽  
Limited Service ◽  
Non Destructive Techniques

CANDU reactors use Zr-2.5 Nb alloy pressure tubes, as the primary pressure boundary within the reactor core. These components are subject to periodic inspection and material surveillance programs. Occasionally, the inspection program uncovers a flaw, whereupon the flaw is assessed as to whether it compromises the integrity of the pressure-retaining component. In 1998, such a flaw was observed in one pressure tube of a reactor. Non-destructive techniques and analysis were used to form a basis to disposition the flaw, and the component was fit for a limited service life. This component was eventually removed from service, whereupon the destructive examinations were used to validate the disposition assumptions used. Such a process of validation provides credibility to the disposition process. This paper reviews the original flaw and its subsequent destructive evaluation.

Assessment of a Medieval Arch Bridge Resorting to Non-destructive Techniques and Numerical Tools

2019 ◽  
pp. 464-472
Author(s):  
Daniel V. Oliveira ◽  
Reza Allahvirdizadeh ◽  
Ana Sánchez ◽  
Belen Riveiro ◽  
Nuno Mendes ◽  
...  
Keyword(s):  
Arch Bridge ◽  
Numerical Tools ◽  
Non Destructive ◽  
Non Destructive Techniques

Non-destructive techniques of detecting plant diseases: A review

2019 ◽  
Vol 108 ◽  
pp. 101426 ◽  
Author(s):  
Maimunah Mohd Ali ◽  
Nur Azizah Bachik ◽  
Nur ‘Atirah Muhadi ◽  
Tuan Norizan Tuan Yusof ◽  
Chandima Gomes
Keyword(s):  
Plant Diseases ◽  
Non Destructive ◽  
Non Destructive Techniques

Steel Health Monitoring Using Magnetic Techniques

2014 ◽  
Vol 792 ◽  
pp. 139-143 ◽  
Author(s):  
Polykseni Vourna ◽  
Aphrodite Ktena ◽  
A. Mpalliou ◽  
Athanasios G. Mamalis ◽  
Evangelos Hristoforou
Keyword(s):  
Health Monitoring ◽  
Ferromagnetic Materials ◽  
Barkhausen Noise ◽  
Magnetic Response ◽  
Intrinsic Properties ◽  
Magnetic Techniques ◽  
Non Destructive ◽  
Non Destructive Techniques

In the present work the determination of intrinsic properties in ferromagnetic materials by using magnetic non-destructive techniques is discussed. Barkhausen noise and bulk permeability measurements were used in various steels. The monotonic dependence of the magnetic response on microstructural features was verified.

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