Safe Product Design - The Role of the NDE Reliability Analysis

When pushed to the limits of their detection capability, NDE systems do not produce con-sistent hit/miss indications. Their capability of detecting small defects is therefore expressed in terms of POD. An adequate NDE system is required to ensure the structural integrity. In conventional signal response analysis, the POD is expressed as a function of the defect size, and its adequacy for the inspection task is tested against the maximum allowable defect size which will not undermine the structural integrity. Analyses of modern structures show that other parameters, beside the defect size, can both significantly influence the POD and determine the severity of the defect for the structure. Within the multi-parameter reliability analysis, the POD is expressed as a function of those influencing parameters. When determining the adequacy of the NDE system, the capability of detecting a defect has to be expressed and tested against the critical value of exactly that parameter that determines defects severity for the structure. Failing to do so can lead to a rejection of the healthy, or acceptance of the bad part. The principle is demonstrated on the example of the Transmit-Receive Longitudinal (TRL) ultrasonic inspection of the iron cast component for semi-elliptical surface defects

Inhibitory effect of goat and cow milk fermented with Bifidobacterium longum bb-46 on growth of uropathogenic Candida albicans

Cilj ispitivanja bio je utvrditi antagonistički utjecaj kozjeg i kravljeg mlijeka fermentiranog probiotičkom bakterijom Bifidobacterium longum Bb- 46 na rast uropatogenog kvasca Candida albicans. Hipoteza u ovom radu bila je da fermentirano kozje mlijeko ima moguće jače inhibicijsko djelovanje na rast Candida albicans u usporedbi s fermentiranim kravljim mlijekom. Povrh toga, praćene su korelacije između stupnja inhibicije i određenih parametara mliječno kisele fermentacije (broj stanica Bifidobacterium longum Bb-46 i pH vrijednost). Rezultati istraživanja pokazali su da fermentirano kozje mlijeko značajno jače inhibira rast Candida albicans u odnosu na fermentirano kravlje mlijeko (P<0,05). Nije utvrđena nikakva korelacija stupnja inhibicije rasta Candida albicans s pH vrijednosti fermentiranog mlijeka i brojem živih stanica Bifidobacterium longum Bb-46 u fermentiranom kozjem i kravljem mlijeku.The study was carried out to determine the antagonistic influence of goat and cow milk fermented with Bifidobacterium longum Bb-46 on uropathogenic Candida albicans strain. The hypothesis of this study was that fermented goat milk could have possible stronger inhibitory effect on the growth of uropathogenic yeast Candida albicans than fermented cow milk. The correlation between the inhibitory effect and the time of fermentation (number of viable Bifidobacterium longum Bb-46 cells and pH of fermented milk) was also determined. The obtained results have shown considerably higher inhibitory effect of fermented goat milk on the growth of Candida albicans compared with fermented cow milk. There was no significant correlation between number of Bifidobacterium longum Bb-46 cells in fermented and the inhibitory effect; as well as between changes in pH during fermentation and inhibitory effect of fermented goat or cow milk

Alteration of fatty acids content during cow\u27s and goat\u27s milk fermentation with ABT-2 culture

Cilj rada bio je ispitati utjecaj fermentacije kozjeg i kravljeg mlijeka ABT- 2 kulturom na promjenu udjela pojedinačnih masnih kiselina u kozjem i kravljem mlijeku. Svrha rada bila je utvrditi povećanje udjela pojedinačnih kratko (SCFA - short chain fatty acids) i srednje (MCFA - middle chain fatty acids) lančanih masnih kiselina tijekom fermentacije kozjeg i kravljeg mlijeka. Hipoteza u radu bila je da veći udjeli SCFA i MCFA tijekom fermentacije ABT-2 kulturom nastaju u kozjem nego u kravljem mlijeku. Rezultati rada pokazali su da se fermentacijski procesi brže odvijaju u kozjem mlijeku u usporedbi s kravljim. Statistički značajno veći broj stanica probiotičkih bakterija Bifidobacterium spp. i Lactobacillus acidophilus La zabilježen je tijekom fermentacije kozjeg mlijeka, uz istodobno brže padanje pH vrijednosti kozjeg mlijeka u odnosu na kravlje. Uslijed fermentativne aktivnosti bifidobakterija iz ABT-2 kulture povećavao se udio SCFA i MCFA u obje vrste mlijeka. Međutim, značajno veći udio mjerenih SCFA i MCFA nastao je fermentacijom kozjeg mlijeka.In this paper, changes in composition and contents of each fatty acid during fermentation with ABT-2 culture were examined. The objective of this study was to determinate the increase of short (SCFA) and medium (MCFA) chain fatty acids in goat\u27s and cow\u27s milk during fermentation with ABT-2 culture. The hypothesis of this study was that higher contents of SCFA and MCFA are produced in goat\u27s milk in comparison with cow\u27s milk, during fermentation with ABT-2 culture. Obtained results have shown that fermentation process in goat\u27s milk is faster than in cow\u27s milk. The number of viable cells of probiotic bacteria Lactobacillus acidophilus La-5 and Bifidobacterium spp. was statistically greater in goat\u27s milk than in cow\u27s milk; consequently, pH value decreased more obviously in goat\u27s milk than in cow\u27s milk during whole fermentation process. Increase of SCFA and MCFA contents during fermentation was noted in both types of milk due to activity of bifidobacteria derived from ABT-2 culture. However, considerably higher amounts of examined SCFA and MCFA were produced in goat\u27s milk than in cow\u27s milk

Water for all : Proceedings of the 7th international scientific and professional conference Water for all

The 7th International Scientific and Professional Conference Water for all is organized to honour the World Water Day by the Josip Juraj Strossmayer University of Osijek, European Hygienic Engineering & Design Group (EHEDG), Danube Parks, Croatian Food Agency, Croatian Water, Faculty of Food Technology Osijek, Faculty of Agriculture in Osijek, Faculty of Civil Engineering Osijek, Josip Juraj Strossmayer University of Osijek Department of Biology, Josip Juraj Strossmayer University of Osijek Department of Chemistry, Nature Park “Kopački rit”, Osijek- Baranja County, Public Health Institute of the Osijek- Baranja County and „Vodovod-Osijek“ -water supply company in Osijek. The topic of World Water Day 2017 was "Wastewater" emphasizing the importance and influence of wastewater treatments on global environment. The international scientific and professional conference Water for all is a gathering of scientists and experts in the field of water management, including chemists, biologists, civil and agriculture engineers, with a goal to remind people about the significance of fresh water and to promote an interdisciplinary approach and sustainability for fresh water resource management. The Conference has been held since 2011. About 300 scientists and engineers submitted 95 abstracts to the 7th International Scientific and Professional Conference Water for all, out of which 33 was presented orally and 62 as posters. 47 full papers were accepted by the Scientific Committee. 38 full papers became the part of the this Proceedings while 9 papers were accepted for publication in Croatian Journal of Food Science and Technology and Electronic Journal of the Faculty of Civil Engineering Osijek - e-GFOS