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  • 2005-2009  (25)
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Material
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Effect of dietary protein and lipid levels on growth and body composition of juvenile turbot (Scophthalmus maximus L) reared under optimum salinity and temperature conditions (2005)
    Oxford, UK : Blackwell Science Ltd
    Aquaculture nutrition 11 (2005), S. 0 
    Details
    ISSN: 1365-2095
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Effect of dietary protein and lipid levels on growth and body composition of juvenile turbot was determined at optimum salinity and temperature conditions of 17 g L−1 and 19.2 °C, respectively, by using 3 × 2 (protein levels: 550, 600 and 650 g kg−1; lipid levels: 69 and 168 g kg−1) factorial design with three replications of each. Fish were hand-fed to satiety twice daily throughout the feeding trial. Weight gain and specific growth rate of fish were significantly (P 〈 0.05) increased with increased dietary lipid level, but not by dietary protein level. Daily feed intake was significantly (P 〈 0.05) affected by both dietary protein and lipid levels. Feed efficiency ratio and protein efficiency ratio were significantly (P 〈 0.05) affected by dietary lipid level, but not by dietary protein level. Moisture content of whole body was significantly (P 〈 0.05) affected by dietary lipid level, but not by dietary protein level. Crude lipid content of whole body was significantly (P 〈 0.05) affected by dietary lipid level, but not by dietary protein level. Significantly higher 20:5n−3, 22:6n−3 and n−3 highly unsaturated fatty acids were observed in turbot fed the low lipid diet than fish fed the high lipid diet in all protein levels, but significantly lower 18:2n−6 was observed in fish fed the former compared with the latter. In considering results of growth, specific growth rate and efficiency of feed, optimum dietary protein and lipid levels for juvenile turbot seemed to be 550 and 168 g kg−1 of the diet, respectively, under optimum salinity and temperature conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2095.2005.00338.x
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  • 2
    Electronic Resource
    Electronic Resource
    Analysis of genes responding to ultraviolet B irradiation of HaCaT keratinocytes using a cDNA microarray (2005)
    Oxford, UK : Blackwell Science Ltd
    British journal of dermatology 152 (2005), S. 0 
    Details
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background  Ultraviolet (UV) B irradiation causes many important biological changes in skin, which lead to pathophysiological alterations of the homeostatic environment.Objectives  To gain more insight into the molecular events provoked by UVB irradiation, we performed cDNA microarray analysis.Methods  Immortalized HaCaT keratinocytes were irradiated with a high cytotoxic dose of UVB (50 mJ cm−2), and total RNA was isolated. Fluorescently labelled probes were prepared by reverse transcription and were hybridized with cDNA microarray slides made using 840 cDNA clones.Results  Time-course cDNA microarray analysis revealed the global gene expression profile after UVB exposure. Of 840 genes tested, 192 genes showed changes in their expression levels at one or more of four time points. The genes were clustered into four groups according to their expression patterns in a self-organizing maps analysis. Classification of these genes into nine functional categories revealed that UVB irradiation affected several biological processes. The genes that were first upregulated and then returned to normal levels included several genes related to the inhibition of cell growth and the proteasome pathway. Conversely, the expressions of many genes involved in the cytoskeleton, signal transduction, metabolism and transcription were first downregulated or unchanged and then upregulated later, reflecting the recovery of UVB-damaged cellular activities.Conclusions  These results demonstrate the complexity of the transcriptional profile of the UVB response, and provide a basis for the global characterization of UV-regulated gene expression.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2133.2005.06412.x
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  • 3
    Electronic Resource
    Electronic Resource
    Formation of Ferrite with Cr Equivalents and Solidification Rates in Mod. (9-12)Cr-1Mo Steels (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 124-126 (June 2007), p. 1497-1500 
    Details
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Notes: The influence of solidification rates and Cr equivalents on the formation of the ferrite wasstudied by directional solidification in mod. (9-12)Cr-1Mo steels. It was found that the volumefraction of ferrite increased as increasing Cr equivalent and solidification rate. The volume fraction ofthe ferrite showed much higher at low solidification rates with the planar or cellular interface than thatat high solidification rates with the dendritic interface. The volume fraction of ferrite in solidificationmicrostructure showed much higher than that in extruded and heat-treated alloys. It depends on notonly solidification rate and Cr equivalent but also the solidification fraction. At low solidificationrates, there occurs segregation because the solid/liquid interface was planar or cellular, and it makescomposition change with solidification fractions. The formation of ferrite has been discussed with Crequivalent and solidification rate
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/23/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.124-126.1497.pdf
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  • 4
    Electronic Resource
    Electronic Resource
    Characteristics of High Temperature Tensile Properties and Residual Stresses in Welded Joints of the SM570-TMCP Steel (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 353-358 (Sept. 2007), p. 527-532 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: TMCP steels produced by thermo-mechanical control process are now spot lighted due tothe excellent combinations of strength, toughness and weldability. Recently, in Korea, high strengthSM570-TMCP steel whose tensile strength is 600MPa has been developed and applied to steelstructures due to its excellent nature. But, for the application of the TMCP steel to steel structures, it isnecessary to elucidate not only the material characteristics but the mechanical characteristics ofwelded joints. In this study, high temperature tensile properties of the SM570-TMCP steel wereinvestigated through the elevated temperature tensile test and the characteristics of residual stresses inwelded joints of the TMCP steel were studied through the three-dimensional (3-D) thermalelastic-plastic finite element (FE) analysis on the basis of mechanical properties at high temperaturesobtained from the experiment. The results are then compared with the conventional quenched andtempered high strength SM570 steel
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.527.pdf
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  • 5
    Electronic Resource
    Electronic Resource
    Electrochemical Etching of Aluminum Foil for Electrolytic Capacitors (2005)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 475-479 (Jan. 2005), p. 385-388 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The increase of capacitance on dielectric layer is associated with enlargement of etched surface area of electrodes for aluminum electrolytic capacitors. Etched tunnels extending along [100] directions are formed by crystallographic dissolution of aluminum in a chloride solution. This study has been focused primarily on the effects of addition of inhibitors to hydrochloric acid solution on the increase of the surface area by Electrochemical Impedance Spectroscopy (EIS). The addition of 3 % ethylene glycol was more effective for the enlargement of the surface area comparing with those of 1M sulfuric acid and no additive. And it was observed by TEM that the tunnels were grown straight and parallel to [100] directions
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/09/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.475-479.385.pdf
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  • 6
    Electronic Resource
    Electronic Resource
    Preparation of Biodegradable Porous Calcium Metaphosphate Granules as Bone Filler by Starch Consolidation (2005)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 284-286 (Apr. 2005), p. 369-372 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Porous calcium metaphosphate granules for bone fillers were prepared by starchconsolidation with baking powder and surfactant. Paste for foaming was prepared by the mixing of calcium metaphosphate powder and water with the various amount of starch (10~20㎛ size), where solid contents 30%, 45%, 60% of the paste. In order to obtain the optimum micro/macro porous structure, the appropriate contents of baking powder and surfactant at a fixed content of starch wereexamined. In order to examine the content of baking powder on pore morphology, the baking powder was added 60, 180, and 300 wt% of the paste at fixed content of starch. And then, in order to investigate the effect of surfactant on porous structure, surfactant was added 0.035, 0.1, and 0.16 wt% of paste weight at fixed content of starch and baking powder. Foaming was conducted using microwave method, and foamed samples were sintered at 900 ºC. The sintered porous blocks withstarch only showed uneven and closed macro pores without any micro pores. However, the sintered porous blocks with starch, baking powder, and surfactant showed homogeneous micro and macro porous structures ranging 20~60, and 300~1000 ㎛ in pore size, respectively. The porosity was increased with the increase of surfactant up to about 70 %
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/49/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.284-286.369.pdf
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  • 7
    Electronic Resource
    Electronic Resource
    The Change of Mechanical Properties for Anodic Aluminum Oxide by Heat Treatment (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 317-318 (Aug. 2006), p. 323-326 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Anodic aluminum oxide (AAO) was prepared in three types of aqueous solutions withvarious applied voltage. The mechanical property of AAO prepared in different electrolyte wasinvestigated and hardness was increased on account of the increase of the thickness between pores.The mechanical property and microstructure change of AAO prepared in oxalic acid at 40V wasinvestigated by heat treatment. AAO prepared in oxalic acid at 40V was transformed from amorphousto crystalline phase by heat treatment above 800oC and hardness was increased about 2.6 times withincrease of heat treatment temperature
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/51/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.317-318.323.pdf
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  • 8
    Electronic Resource
    Electronic Resource
    Effect of Sintering Temperature on Structure, Piezoelectric and Ferroelectric Properties of (Na〈sub〉0.5〈/sub〉Bi〈sub〉0.5〈/sub〉)〈sub〉0.90〈/sub〉Ba〈sub〉0.10〈/sub〉TiO〈sub〉3〈/sub〉 Ceramic (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 317-318 (Aug. 2006), p. 853-856 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Structures, ferroelectric and piezoelectric properties of (Na0.5Bi0.5)0.90Ba0.10TiO3 ceramicsintered at different temperatures were investigated. The results confirm an important role ofsintering temperature on the structure and electrical properties of the ceramic. It was found that theincrease of sintering temperature in the range of 1110-1160 [removed info] promoted the development ofcrystal structure and microstructural densification, leading to an improvement in ferroelectricproperties, poling process and piezoelectric properties. Further increase of the sintering temperatureabove 1160 [removed info] resulted in a slight deformation of ceramic specimens. With respect to sinteringbehavior and piezoelectric properties, a relatively narrow sintering temperature range near 1150 [removed info]was ascertained to be preferred for the ceramic
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/51/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.317-318.853.pdf
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  • 9
    Electronic Resource
    Electronic Resource
    Structural Design and Optimization of a 3-Axis Miniaturized Machine Tool with High Precision Positioning Stages (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 339 (May 2007), p. 321-326 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The procedure of structural design on miniaturized machine tool (mMT) is proposed andstructural optimization by applying robustness evaluation method is presented in this paper. Thedesign procedure of a kind of mMT which is a 3-axis miniaturized milling machine tool (mMMT) isdiscussed and three different structures of mMMT are proposed based on previous design procedure.The most suitable structure is selected using robustness evaluation method, which is Taguchi method,due to volumetric error function. The design parameters of selected structure are optimized
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.339.321.pdf
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  • 10
    Electronic Resource
    Electronic Resource
    Characteristics of Photocatalytic Titania Fabricated by Anodization (2005)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 475-479 (Jan. 2005), p. 4153-4156 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The anodic titanium dioxide (TiO2) films for photocatalyst were prepared by anodization in acid solution. The characteristics of surface layer and the photocatalytic efficiency of the anodic film have been investigated. The chemical states of anodic film were analyzed using XPS, and the photocatalytic efficiency was evaluated by the degradation rate of aniline blue. From XPS results thecomponent elements of the electrolyte, P and S, were observed in the anodic film, which were incorporated from the electrolyte into the oxide layer during anodization. The porous TiO2 film exhibited high photocatalytic efficiency for degradation of aniline blue
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/10/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.475-479.4153.pdf
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