Glass fiber-reinforced polymer (GFRP) ship structures are generally fabricated by hand lay-up; thus, the environmental factors and worker proficiency influence fabrication process presence of error in non-destructive evaluation results. In this study, ultrasonic testing GFRP hull plate prototypes was conducted to investigate statistical significance influences design parameters, e.g., glass fib...

In this work, we describe in detail the chopped random basis (CRAB) optimal control technique recently introduced to optimize time-dependent density matrix renormalization group simulations [P. Doria, T. Calarco, and S. Montangero, Phys. Rev. Lett. 106, 190501 (2011)]. Here, we study the efficiency of this control technique in optimizing different quantum processes and we show that in the consi...

Lemongrass plants (Cymbopogon winterianus Jowitt ex Bor), used for their own essential oils through the distillation process. Before process, lemongrass leaves are usually withered to reduce air content, and also size be more effectively extraction. The research study effect of withering chopping citronella before being distilled, on yield quality oil produced. was conducted in a Randomized Blo...

In the EU, pigs must have permanent access to manipulable materials such as straw, rope, wood, etc. Long straw can fulfil this function, but can increase labour requirements for cleaning pens, and result in problems with blocked slatted floors and slurry systems. Chopped straw might be more practical, but what is the effect on pigs' behaviour of using chopped straw instead of long straw? Commer...

The present study aimed to quantify calves' (Bos taurus) preference for long versus chopped hay and straw, and hay versus straw, using cross point analysis of double demand functions, in a context where energy intake was not a limiting factor. Nine calves, fed milk replacer and concentrate, were trained to work for roughage rewards from two simultaneously available panels. The cost (number of m...

Dairy cattle barns are a major source of NH3 emissions to the atmosphere. Previous studies have shown that the bedding material used in the barn can influence the magnitude of NH3 emissions, but little is known about which bedding characteristics are important in this respect. The aims of this study were to assess, at a laboratory scale, the relative importance of the chemical [pH, cation excha...

Using red kangaroos Macropus rufus Desmarest, a large (>20 kg) marsupial herbivore, we compared the digestive capabilities of juveniles with those of mature, non-lactating females on high-quality forage (chopped lucerne Medicago sativa hay) of 43+/-1% neutral-detergent fibre (NDF) and poorer quality, high-fibre forage (chopped oaten Avena sativa hay) of 64+/-1% NDF. On chopped lucerne apparent ...

The white-naped mangabey is an endangered and rare zoo species, yet little known concerning their welfare in captivity. assessment of should incorporate a net balance negative positive behavioural indicators. These behaviours, thus welfare, can be affected by the way food presented based on its distribution, clumped or dispersed, size, chopped whole. This study investigated effect presentation ...