| 1. |
- Svensson, Bertil, 1948-, et al.
(författare)
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A running leap for embedded signal processing to future parallel platforms
- 2014
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Ingår i: WISE 2014 - Proceedings of the 2014 ACM International Workshop on Long-Term Industrial Collaboration on Software Engineering, Co-located with ASE 2014. - New York, NY, USA : Association for Computing Machinery, Inc. - 9781450330459 ; , s. 35-42
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Konferensbidrag (refereegranskat)abstract
- This paper highlights the collaboration between industry and academia in research. It describes more than two decades of intensive development and research of new hardware and software platforms to support innovative, high-performance sensor systems with extremely high demands on embedded signal processing capability. The joint research can be seen as the run before a necessary jump to a new kind of computational platform based on parallelism. The collaboration has had several phases, starting with a focus on hardware, then on efficiency, later on software development, and finally on taking the jump and understanding the expected future. In the first part of the paper, these phases and their respective challenges and results are described. Then, in the second part, we reflect upon the motivation for collaboration between company and university, the roles of the partners, the experiences gained and the long-term effects on both sides.
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| 2. |
- Bengtsson, A., et al.
(författare)
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Composting of oily sludges - degradation, stabilized residues, volatiles and microbial activity
- 1998
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Ingår i: Waste Management & Research. - 0734-242X .- 1096-3669. ; 16:3, s. 273-284
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Tidskriftsartikel (refereegranskat)abstract
- Process residuals, sludge with high oil content, were treated by composting. In lab-scale (100 litre) trials initial oil concentrations (30 to 50 g kg-1 dry matter) were, depending on composting conditions, reduced 55 to 90% during a period of 60 to 120 days. Besides carbon dioxide, a significant amount of oil was converted to stabilized residuals. A minor volatile fraction (5%) evaporated. High numbers (approximately 1 x 108 per gram dry compost) of oil degrading bacteria were detected during the high rate phases. Genetic fingerprinting (randomly amplified polymorphic DNA (RAPD) indicated groups of related and potentially interesting isolates from these periods. RAPD also indicated that successions of the microflora took place over time. Initial oil contents (40 to 80 g kg-1 dry compost) in outdoor pilot composts (15,000 to 20,000 kg), were reduced 86 to 94% in 10 months. Prolonged treatment (5 months) resulted in further decreases, in total a 95 to 97% reduction. In spite of increased biological activity, neither the addition of organic (manure) nor inorganic (nitrogen, phosphorus and potassium) nutrients increased the speed or amount of oil degraded during the prolonged treatment. Among potentially hazardous organics, elevated levels of polyaromatic hydrocarbons were found in the original oily sludge. Composting with adequate substrate reduced most of them. With proper considerations, composting is suggested as a cost and treatment-effective way of handling these sludges.
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| 3. |
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| 4. |
- Ehn, B.-M., et al.
(författare)
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Modification of IgE Binding during Heat Processing of the Cow's Milk Allergen ?-Lactoglobulin
- 2004
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Ingår i: Journal of Agricultural and Food Chemistry. - : American Chemical Society (ACS). - 0021-8561 .- 1520-5118. ; 52:5, s. 1398-1403
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Tidskriftsartikel (refereegranskat)abstract
- The effect of heat treatment on the IgE binding ability of ?-lactoglobulin, as pure protein or in whole milk, was studied by inhibition of IgE antibody binding using FEIA-CAP inhibition. A slight but significant decreased IgE binding was seen between unheated and heat-treated ?-lactoglobulin solution at 74 °C (IC50 = 2.03 and 3.59 ?g/mL, respectively, p = 0.032). A more pronounced decrease was found at 90 °C with an IC50 of 8.45 ?g/mL (p = 0.014). The inhibition of IgE binding of milk after heat treatment at 90 °C was also significantly decreased (p = 0.007). However, at all heat treatments, a similar total amount of IgE antibodies could be inhibited at a sufficiently high concentration of ?-lactoglobulin. The inhibiting ability of ?-lactoglobulin was significantly impaired in some fermented acidified milk products such as yogurt as compared to that in nonfermented milk (p < 0.001). There was only a small difference of IgE binding between the native forms of genetic variants A and B.
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| 5. |
- Ehn, B.-M., et al.
(författare)
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Modification of IgE binding to beta-lactoglobulin by fermentation and Proteolysis of cow's milk
- 2005
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Ingår i: Journal of Agricultural and Food Chemistry. - : American Chemical Society (ACS). - 0021-8561 .- 1520-5118. ; 53:9, s. 3743-3748
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Tidskriftsartikel (refereegranskat)abstract
- The effect of fermentation by Lactobacilliand of proteolytic hydrolysis of whole milk on the IgE binding ability of ?-lactoglobulin was studied using an ELISA inhibition assay. Sera from nine adult milk allergic patients were tested. The individual sera showed a similar inhibition pattern in the changes during fermentation and proteolysis. The degradation of ?-lactoglobulin was studied with liquid chromatography. In general, fermentation with Lactobacilli gave little effect on IgE binding, even though chromatography data showed a gradual degradation of ?-lactoglobulin. Proteolysis with trypsin, however, gave extensive degradation of ?-lactoglobulin and strongly decreased IgE binding. In addition, we measured the inhibition pattern of ?-lactoglobulin in various selected commercially available fermented milk products. These showed an IgE binding capacity similar to that of nonfermented high pasteurized milk. © 2005 American Chemical Society.
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| 6. |
- Fuertes, Nina, et al.
(författare)
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Use of SVET to evaluate corrosion resistance of heat tinted stainless steel welds and effect of post-weld cleaning
- 2017
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Ingår i: Materials and corrosion - Werkstoffe und Korrosion. - : Wiley. - 0947-5117 .- 1521-4176. ; 68:1, s. 7-19
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Tidskriftsartikel (refereegranskat)abstract
- The effect of heat tints on the corrosion resistance of a 2507 duplex stainless steel tungsten inert gas (TIG) welded joint was assessed. The scanning vibrating electrode technique (SVET) was used to study oxide dissolution, initiation and propagation of corrosion on the weld. Small spot X-ray photoelectron spectroscopy (XPS) was used to investigate the composition and thickness of the heat tints. Both heat tinted and post-weld cleaned conditions were tested. Post-weld cleaning methods investigated were brushing, brushing plus polishing and brushing plus pickling paste. It was seen that heat tints dissolve by electrochemical reactions that can be mapped with the SVET and correlated with the level of discolouration of the oxides, with the purple–brown oxide being the most active. The mechanical post-weld cleaning methods proved to be insufficient to remove the anodic activity in the heat tint. The most efficient process was brushing followed by pickling which resulted in a totally passive surface measured with SVET and a higher critical pitting temperature.
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| 7. |
- Johansson, R., et al.
(författare)
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A strategy for assessing safe use of sensors in autonomous road vehicles
- 2017
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Ingår i: 36th International Conference on Computer Safety, Reliability, and Security, SAFECOMP 2017. - Cham : Springer. - 9783319662657 ; , s. 149-161
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Konferensbidrag (refereegranskat)abstract
- When arguing safety for an autonomous road vehicle it is considered very hard to show that the sensing capability is sufficient for all possible scenarios that might occur. Already for today’s manually driven road vehicles equipped with advanced driver assistance systems (ADAS), it is far from trivial how to argue that the sensor systems are sufficiently capable of enabling a safe behavior. In this paper, we argue that the transition from ADAS to automated driving systems (ADS) enables new solution patterns for the safety argumentation dependent on the sensor systems. A key factor is that the ADS itself can compensate for a lower sensor capability, by for example lowering the speed or increasing the distances. The proposed design strategy allocates safety requirements on the sensors to determine their own capability. This capability is then to be balanced by the tactical decisions of the ADS equipped road vehicle.
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| 8. |
- Mellin, Pelle, et al.
(författare)
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A proposed Swedish national standard and best practice for detection of Ar in PM hip material
- 2018
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Ingår i: Euro PM 2018 Congress and Exhibition. - : European Powder Metallurgy Association (EPMA). - 9781899072507
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Konferensbidrag (refereegranskat)abstract
- Ar in metal is present as gaseous voids which affect the material performance; most notably the mechanical properties. In agreement with literature findings, our investigation confirms this for 316L steel produced by PM HIP. Detecting the Ar is possible by microscopy, but more reliably with inert gas fusion followed by gas chromatography or mass spectrometry. The users of these techniques have accumulated experience over the years and consider them robust, especially in terms of distinguishing a presence or absence of Ar. Since consensus has emerged, a standard is now possible. We propose firstly a national standard. It may be used as a quality agreement between the purchaser and provider of the PM HIP service. The proposed standard considers the distinctiveness of PM HIP. For example that Ar tends to segregate in PM HIP cans. In fact, consensus has also been reached on how to reliably sample from PM HIP cans. © European Powder Metallurgy Association (EPMA).
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| 9. |
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| 10. |
- Suutari, T.J., et al.
(författare)
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IgE cross reactivity between reindeer and bovine milk ?-lactoglobulins in cow's milk allergic patients
- 2006
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Ingår i: Journal of investigational allergology & clinical immunology. - 1018-9068 .- 1698-0808. ; 16:5, s. 296-302
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Tidskriftsartikel (refereegranskat)abstract
- Background: Allergic reactions to cow's milk are common in small children. One of the main protein allergens found in cow's milk is ?-lactoglobulin (?-Lg). Reindeer and bovine milk both contain related ?-Lg proteins, but the allergenicity of reindeer ?-Lg has not previously been studied. The purpose of this study was to analyze the immunological cross-reactivity of IgE antibodies from children with cow's milk allergy to reindeer and bovine ?-Lg. Methods: Sera from 17 children and a serum pool of 4 patients with elevated cow's milk-specific IgE were investigated. ?-Lg from bovine and reindeer milk was isolated in native form and an enzyme-linked immunosorbent inhibition assay was developed. Bovine ?-Lg was used as a capturing antigen and the inhibiting effects of reindeer and bovine ?-Lg on the IgE binding were measured. Results: Cross-reactivity patterns of bovine milk ?-Lg specific IgE to reindeer ?-Lg varied among patients. In general, reindeer ?-Lg showed significantly lower inhibition (mean 43%) of IgE binding to the capturing antigen than did bovine ?-Lg (mean 89%). In some patients, even high concentrations of reindeer ?-Lg only partly eliminated the IgE binding to bovine ?-Lg. Conclusions: The partial cross-reactivity of human anti-bovine IgE with reindeer ?-Lg suggests that it lacks important bovine epitopes and those that are recognized are only weakly bound. © 2006 Esmon Publicidad.
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