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  • Electronic Resource  (17)
  • 2005-2009  (17)
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  • Electronic Resource  (17)
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  • 1
    Electronic Resource
    Electronic Resource
    081
A New Antiseptic Solution with Potential Applications in Wound Care (2005)
    Oxford, UK; Malden, USA : Blackwell Publishing Ltd/Inc.
    Wound repair and regeneration 13 (2005), S. 0 
    Details
    ISSN: 1524-475X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Despite the use of antibiotics, antiseptics, and improved sterile techniques, infection remains one of the most frequent complications of wound healing. Infection must be avoided to permit proper wound healing. Systemic and topical antibiotics and antiseptics with broad antimicrobial spectra have been used. Antiseptics have not generally been reported to develop bacterial resistance like antibiotics. Several reports have suggested that antiseptics exhibit significant cytotoxicity toward wound bed cells and may interfere with the normal wound healing process. Thus, for chronic ulcers, the standard of care is debridment and moist dressing with saline.We will describe the properties of a new topical antimicrobial solution, NVC-101. These include its broad-spectrum antimicrobial activities against gram positive, gram negative bacteria, yeast and fungi pathogens, and its lower toxicity as compared to commonly used topical antiseptics. In addition, we will describe the in vivo safety profile of NVC-101 in the rabbit eye and guinea pig sensitization models, as well as 28-day application to full thickness wounds in rats and mini-pigs. Based on these findings, multicenter Phase II clinical trials on infected chronic ulcers are under way.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1067-1927.2005.130215cc.x
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  • 2
    Electronic Resource
    Electronic Resource
    Simultaneous determination of chlorinated bacteriostats in cosmetic and pharmaceutical products (2005)
    Oxford, UK : Blackwell Science Ltd
    International journal of cosmetic science 27 (2005), S. 0 
    Details
    ISSN: 1468-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A high-performance liquid chromatography method has been developed for simultaneous determination of triclosan (2,4,4-trichloro-2-hydroxydiphenyl ether) and triclocarban (3,4,4-trichlorocarbanilide) in cosmetic and pharmaceutical products. The two compounds could be separated on a Nucleosil C18 column and eluted with acetonitrile and water (70:30, v/v) as the mobile phase and detected with a differential refractive index detector. The retention times of triclosan and triclocarban were 5.81 and 2.99 min, respectively. The results obtained were in good agreement with those obtained by a differential pulse voltammetric method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-2494.2005.00289_4.x
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  • 3
    Electronic Resource
    Electronic Resource
    Electron Irradiation Induced Transformation of (Pb5Ca5)(VO4)6F2 Apatite to CaVO3 Perovskite (2005)
    Oxford, UK : Blackwell Science Inc
    Journal of the American Ceramic Society 88 (2005), S. 0 
    Details
    ISSN: 1551-2916
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Crystallochemical changes of (Pb5Ca5)(VO4)6F2 apatite under electron irradiation were examined by transmission electron microscopy. The apatite, a synthetic analog of vanadinite, was moderately stable towards a less intense 300-keV LaB6 source, while it changed rapidly in structure when exposed to the higher flux of a 200-keV field emission gun. The electron beam induced transformation of vanadinite proceeds sequentially by (i) migration and loss of fluorine, (ii) lead volatilization and conversion to 2–5-nm platelets of a glaserite-type structure, and (iii) the reduction of V5+ to V4+ with the removal of lead and calcium oxide that leads to single-crystal CaVO3 perovskite as the ultimate product. The phase transformations are interpreted based on the crystallographic relations among the CaVO3 perovskite, the (Pb5Ca5)(VO4)6F2 apatite and the glaserite-type structures, and compositional changes under electron irradiation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1551-2916.2004.00002.x
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  • 4
    Electronic Resource
    Electronic Resource
    The efficacy of Helicobacter pylori eradication related to CYP2C19 metabolism (2005)
    Oxford, UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 22 (2005), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2036.2005.02545.x
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  • 5
    Electronic Resource
    Electronic Resource
    Influence of In-Flight Particle Characteristics on the Forming Quality (2005)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 475-479 (Jan. 2005), p. 2823-2826 
    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: There are many technical parameters influencing on the coating quality in plasma spray forming which has become an important technology in materials processing. In this study, the relationships between the melting state, in-flight property of particles injected into plasma jet and the forming quality have been investigated. The experimental results show that the temperature field distributions of plasma jet are mainly affected by plasma generator power though CCD imaging and gray-scale processing. The velocity of in-flight particle is directly determined by the flow rate ofwork gas, and the surface temperature of in-flight particle is obviously affected by assisted gas rate. It is clear that the energy coupling and momentum transferring between plasma and particle have a significant influence on deposition efficiency, porosity, microhardness and microstructure of spray-formed parts, and it also provides a good idea to control the forming quality on-line
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/09/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.475-479.2823.pdf
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  • 6
    Electronic Resource
    Electronic Resource
    The Preparation and Properties of New Silver-Metal Oxide Graded Composite Electrical Contact Materials (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 280-283 (Feb. 2007), p. 1917-1920 
    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: Electrical contact material is a very important material for the electric power industry. An electrical contact material should display good structural characteristics (suitable hardness, high thermal conductivity and stabilization) as well as a good functional characteristic (low electrical resistivity). It is difficult to fabricate such a contact material with all these good performing parameters by common techniques because these physical parameters influence each other. In this paper, we report a novel investigation to design and prepare silver-metal oxide composite materials according to functionally layered and graded material (FLGM) concept and meeting requirement as electrical contact material. The silver-based composite samples characterized by layered component were prepared with conventionalsolid-phase sintering technique. One kind of sample consists of tin dioxide and silver material, in which SnO2 exhibits a graded distribution. Another consists of two metal oxides, cadmium and zinc oxides, and silver material, in which each layer has different metal oxide. Hardness, thermal conductivity and electrical conductivity, were measured and related problems are discussed. Especially, welding resistanceas an important parameter for practical application was tested. SEM analyses before and after electrical erosion were also performed. We conclude that the functionally graded material (FGM) concept as a novel designing and fabricating method has potential for electrical contact composite material
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/49/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.280-283.1917.pdf
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  • 7
    Electronic Resource
    Electronic Resource
    Synthesis and Thermoelectric Properties of Ba〈sub〉8〈/sub〉Ga〈sub〉16+x〈/sub〉Sb〈sub〉x〈/sub〉Ge〈sub〉30-2x〈/sub〉 (x=0,1) Clathrate Single Crystals (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 368-372 (Feb. 2008), p. 553-555 
    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: Ba8Ga16Ge30 clathrate material has being intensely investigated as a candidate of promisingthermoelectric materials. In this work, Ba8Ga16+xSbxGe30-2x (x=0,1) single crystals have been synthesizedby the Ga flux method, using high purity elemental Ba, Sb, Ga, and Ge as starting materials. PowderX-ray diffraction, Scanning electron microscopy equipped with energy-dispersive X-ray spectroscopyand Raman spectroscopy were used to characterize the single crystals. Seebeck coefficient of the crystalswas measured from 300 to 800 K. The result indicates that the crystals are p-type semiconductor, which isdifferent from the crystals synthesized by the Czochralski method. The Seebeck coefficient almost doesnot change after doping Sb in the whole temperature measured and it is in the range of 200 to 300μV/K
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.553.pdf
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  • 8
    Electronic Resource
    Electronic Resource
    Mechanical Reliability of a Segmented Silicon Layer on Ultra-Thin Polyimide Substrates (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 353-358 (Sept. 2007), p. 2529-2532 
    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: Substrate transfer technology for SOI and non-SOI single-crystalline silicon wafers wasdemonstrated allowing for high-performance low-power RF applications. 3D deformable electronicscould be realized by vertically thinning and laterally partitioning of the silicon substrate onsub-millimeter scale. By varying the partition dimensions and the geometry of connecting bridges, thelevel of acceptable deformations can be controlled. The targeted applications of this technology arewireless ID tags and sensor networks. The mechanical properties such as crack, interfacialdelamination are critical to reach the flexible substrate. In this contribution, results of our work onmechanical reliability issues of poly- and single crystalline silicon on ultra-thin polyimide substratesare presented. To improve reliability, square and hexagonal segmentation with different size isapplied to the silicon layer before it is transferred onto an ultra-thin polyimide substrate usingwafer-to-wafer substrate transfer technique based on a temporary glass carrier. Generation of crackswithin the silicon and dielectric layers is then studied under controlled bending and tensile loads. Theformation of cracks is studied experimentally using specially for this purpose designed bending andtensile tools. Ultra-thin interfacial delamination are also focused in this work by experimental and FEsimulation method. A new test setup is designed for mixed mode bending testing which has capacityto observation specimen and recording the crack length and crack opening by microscope. The criticalenergy release depended on mixed angle can be reach by combination experimental data with FEMsimulation
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.2529.pdf
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  • 9
    Electronic Resource
    Electronic Resource
    Preparation and Thermoelectric Properties of AgPb〈sub〉18〈/sub〉SbTe〈sub〉20〈/sub〉 Materials via Hydrothermal Synthesis Method (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 368-372 (Feb. 2008), p. 550-552 
    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: AgPb18SbTe20 nano-powders have been synthesized by a hydrothermal synthesis method at 180°C for 20 h, using AgNO3, Pb(NO3)2, Sb(NO3)3, Na2TeO3 as starting materials and KBH4 as a reductant.AgPb18SbTe20 bulk thermoelectric materials were obtained by pressureless sintering at 450 °C or 520 °Cunder argon atmosphere, after uniaxial pressing the as-synthesized powders into pellets. The phasecomposition and thermal effects of as-prepared powders were characterized by X-ray diffraction (XRD)and DSC-TG analyses, respectively. Electrical properties of the as-prepared bulk materials weremeasured from room temperature to about 700 K, and the maximum power factor of 85 μW/mK2 wasachieved at 600 K for the sample sintered at 723 K for 3 h
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.550.pdf
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  • 10
    Electronic Resource
    Electronic Resource
    Near Net Forming of Metal-Ceramic Parts by Plasma Spraying (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 280-283 (Feb. 2007), p. 1815-1818 
    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: A novel technology of metal-ceramic parts with special functions formed by plasmaspraying has become an important research trend. In this paper, the technical characteristics and spray parameters have been analyzed in detail based on the experiments of metal-ceramic near net forming, and some important techniques such as spray mould fabricating, backing and demoulding have been researched and summarized. Furthermore, the microstructure and property have been analyzed to forecast the quality of spray-formed parts. The research results show that plasma spraying is suitable for the production of metal-ceramic parts of any size with specialmechanical and thermomechanical properties, which can realize the contemporary integration of forming and machining. Therefore, this technology with simple process and low cost is a method of metal-ceramic fabrication with a broad and brilliant prospect
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/49/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.280-283.1815.pdf
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