Results 61 to 70 of about 626,864 (199)

Industrial plastics waste: Identification and segregation [PDF]

open access: yes
Throwaway plastic products, mainly packaging, are inundating our landfills and incinerators. Most are ethenic thermoplastics, which can be recycled as new products or fossil-fuels.
Widener, Edward L.
core   +1 more source

Evaluation of 2.1µm DFB lasers for space applications

open access: yes, 2010
This paper presents the results obtained in the frame of an ESA-funded project called “Screening and Preevaluation of Shortwave Infrared Laser Diode for Space Application” with the objective of verifying the maturity of state of the art SWIR DFB lasers ...
Barbero, Juan   +7 more
core  

Sensing physical stage of fruits by their response to non destructive impacts. [PDF]

open access: yes, 1992
Fruits of two varieties of both apples and pears were tested in the laboratory to measure their response to a small energy impact applied by an impact tester. Samples of fruits of increasing maturity were tested during several weeks.
Jaren Ceballos, Carmen   +2 more
core  

Genetic Variation in Resistance of Scotch Pine to Zimmerman Pine Moth [PDF]

open access: yes, 2017
(excerpt) Scotch pine (Pinus sylvestris L.), a forest tree introduced from Eurasia, is commonly planted for Christmas tree and timber use in northeastern United States. In this country it has numerous insect enemies. Among the most important are European
Bright, John N   +2 more
core   +2 more sources

Effect of Elevated Temperatures on the Compressive Strength and Ultrasonic Pulse Velocity of Self Compacting Concrete

open access: yesJournal of Engineering and Sustainable Development, 2009
In this study, the effect of elevated temperature on the compressive strength of self-compacting concrete is investigated. Two different tests, one of them is the nondestructive test which is the ultrasonic pulse velocity (UPV) test and the other is the
Sawsan Akram Hassan   +2 more
doaj  

Monitoring of Changes Signal Acoustic Emission Signals Using Waveguides

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2017
This paper is focused on possibilities of acoustic emission (AE) signal detection from material surface through waveguide for commonly used piezoelectric sensors.
Jaroslav Začal   +3 more
doaj   +1 more source

Fault detection with optimum March test algorithm [PDF]

open access: yes, 2013
This paper presents a research work aimed to detect previously-undetected faults, either Write Disturb Faults (WDFs) or Deceptive Read Destructive Faults (DRDFs) or both in March Algorithm such as MATS++(6N), March C-(10N), March SR(14N), and March CL ...
Abdul Halin, Izhal   +4 more
core  

Blade Sharpness and its Effect on the Testing of Body Armours [PDF]

open access: yes, 2002
Factors such as edge sharpness and tip sharpness have been identified by Horsfall,1 as keyvariables in the testing of stab and slash resistant armours.
Champion, Stephen M.   +3 more
core  

Non-destructive testing [PDF]

open access: yesNDT International, 1988
Barry Hull, Vernon John
  +5 more sources

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