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  • 1
    Electronic Resource
    Electronic Resource
    Experimental investigation of flyer character driven by a laser and increasing pressure with the flyer technique (2002)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 9 (2002), S. 3201-3204 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Using a special flyer-inclined target, the dynamic characters of a flyer were investigated experimentally for the first time. On the basis of the observation of the shock luminescent signal from the rear surface of a target impacted continuously by the flyer, it appears that the flyer has a steady flying velocity of ∼30.3 km/s after flying a distance longer than ∼30 μm at irradiance of ∼0.8×1014 W/cm2. An experiment on the effect of increasing pressure with the flyer technique was also carried out, and showed that the shock pressure obtained with a flyer was six times more than that without a flyer. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1496083
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  • 2
    Electronic Resource
    Electronic Resource
    Laser-driven shock stability in Al and shock compressibilities of Fe up to 0.8 TPa and SiO2 up to 0.4 TPa (1995)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 2 (1995), S. 3461-3465 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Using uniform illumination of a high-power laser on inclined plane targets and impedance-match targets, we have studied the shock stability in Al and measured the shock adiabats of Fe and SiO2 by recording the shock luminant signals from the back surface of the targets with an optical streak camera. Experiments show that the shock wave is steady in the thickness range of (20–40) μm in Al. The reliable shock adiabats of Fe and SiO2 were obtained in the pressure range of (0.35–0.82)TPa and (0.21–0.41)TPa, respectively. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.871127
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  • 3
    Electronic Resource
    Electronic Resource
    Euclidean random fields obtained by convolution from generalized white noise (1995)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 36 (1995), S. 5217-5245 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: We study Euclidean random fields X over Rd of the form X=G*F, where F is a generalized white noise over Rd and G is an integral kernel. We give conditions for the existence of the characteristic functional and moment functions and we construct a convergent lattice approximation of X. Finally, we perform the analytic continuation of the moment functions and the characteristic functional of X, obtaining the corresponding relativistic functions on Minkowski space. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.531259
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  • 4
    Electronic Resource
    Electronic Resource
    Probing ergot alkaloid biosynthesis: identification of advanced intermediates along the biosynthetic pathway (1988)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 110 (1988), S. 1970-1971 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00214a054
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  • 5
    Electronic Resource
    Electronic Resource
    Probing ergot alkaloid biosynthesis: intermediates in the formation of ring C (1993)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 115 (1993), S. 2482-2488 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00059a051
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  • 6
    Electronic Resource
    Electronic Resource
    Cloning and analysis of WF146 protease, a novel thermophilic subtilisin-like protease with four inserted surface loops (2004)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 230 (2004), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Cloning and sequencing of the gene encoding WF146 protease, an extracellular subtilisin-like protease from the thermophile Bacillus sp. WF146, revealed that the WF146 protease was translated as a 416-amino acid precursor consisting of a putative 18-amino acid signal peptide, a 10-kDa N-terminal propeptide and a 32-kDa mature protease region. The mature WF146 protease shares a high degree of amino acid sequence identity with two psychrophilic subtilisins, S41 (68.2%) and S39 (65.4%), and a mesophilic subtilisin, SSII (67.1%). Significantly, these closely related proteases adapted to different temperatures all had four inserted surface loops not found in other subtilisins. However, unlike those of S41, S39 and SSII, the inserted loops of the WF146 protease possessed stabilizing features, such as the introduction of Pro residues into the loop regions. Interestingly, the WF146 protease contained five of the seven mutations previously found in a hyperstable variant of subtilisin S41 obtained by directed evolution. The proform of WF146 protease (pro-WF146 protease) was overexpressed in Escherichia coli in an inactive soluble form. After heat treatment, the 42-kDa pro-WF146 protease converted to a 32-kDa active mature form by processing the N-terminal propeptide. The purified mature WF146 protease hydrolyzed casein with an optimum temperature of 85°C, and lost activity with a half-life of 30 min at 80°C in the presence of 10 mM CaCl2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/S0378-1097(03)00914-5
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  • 7
    Electronic Resource
    Electronic Resource
    Theoretical studies of CO hydrogenation to methanol over Cu, Pd, and Pt metals (1999)
    Springer
    Catalysis letters 62 (1999), S. 147-151 
    Details
    ISSN: 1572-879X
    Keywords: CO hydrogenation ; methanol synthesis ; quasi‐relativistic density‐functional method ; Amsterdam density‐functional program ; Cu, Pd, and Pt metal clusters
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Theoretical studies of CO hydrogenation to methanol over Cu, Pd, and Pt metals have been carried out using a quasi‐relativistic density‐functional method. The metal surface is simulated by a M10 cluster model. Reaction energies for the elementary steps involved are determined. The activation energies are estimated by the analytic BOC‐MP formula. The results support that these metals are active in CO hydrogenation to methanol. The rate‐determining steps are shown to be different for the metals. The highest activation energies of reaction on the metals fall in the order Cu 〈 Pd 〈 Pt, which corresponds to the order of the catalytic activities of the metals in CO hydrogenation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1019019710780
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  • 8
    Electronic Resource
    Electronic Resource
    Invariant Measures and Symmetry Property of Lévy Type Operators (2000)
    Springer
    Potential analysis 13 (2000), S. 147-168 
    Details
    ISSN: 1572-929X
    Keywords: Lévy type operators ; stable (type) Lévy measures ; (regular infinitesimal) invariant probability measures ; symmetrization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Second order elliptic integro-differential operators (Lévy type operators) are investigated. The notion of regular (infinitesimal) invariant probability measures for such operators is posed. Sufficient conditions for the existence of such regular infinitesimal invariant probability measures are obtained and the symmetrization problem is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008705820024
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  • 9
    Electronic Resource
    Electronic Resource
    On the Lattice Approximation for Certain Generalized Vector Markov Fields in Four Spacetime Dimensions (1997)
    Springer
    Acta applicandae mathematicae 47 (1997), S. 31-48 
    Details
    ISSN: 1572-9036
    Keywords: stochastic quaternionic Cauchy–Riemann equation ; random fields of infinitely divisible type ; covariant random fields ; convergent lattice approximation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract We extend previous results by Albeverio, Iwata and Schmidt on the construction of a convergent lattice approximation for invariant scalar 3-vector generalized random fields F of an infinitely divisible type and apply them to the construction of convergent lattice approximation for the generalized random vector field A determined by the stochastic quaternionic Cauchy–Riemann equation ∂A = F.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1017931909765
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  • 10
    Electronic Resource
    Electronic Resource
    The Influence of Titanium Particles Size on Bone Marrow Mensenchymal Stem Cells Viability (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 361-363 (Nov. 2007), p. 1063-1066 
    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 decrease in bone mass caused by wear debris-induced osteolysis could have beencompensated through osteoblasts secreting enough new bone matrix. However, the normalosteoblastic population depends on the regular differentiation of their progenitor cells, the bonemarrow mesenchymal stem cells (BMSCs). It is not possible to predict whether wear particles willaffect the BMSCs’ viability, and subsequently their differentiation. Furthermore, little is known aboutthe extent to which the sizes of the wear particles loading can impact the viability the most. This studyhas, therefore, concentrated on the potential mechanism for rat BMSCs’ (rBMSCs) viabilityinfluenced by different-sized titanium particle (Ti) loading in vitro.rBMSCs were harvested andloaded with circular Ti particles having three different mean diameters, 0.9, 2.7 and 6.9 .mrespectively. The results showed that different-sized titanium particles all inhibited rBMSCs’proliferation and induced rBMSCs’ apoptosis response , but this influence varied with the size of theTi particles, their concentration and the duration of loading. The smallest Ti particles (0.9.m)exhibited the earliest and largest suppression on the proliferation and the most powerful induction onthe apoptotic response of rBMSCs. qRT-PCR analysis demonstrated that those apoptotic effects wereassociation with the abnormal accentuation of inducible nitric oxide synthase(iNOS) activity. Thesize of titanium particles generated through wear of a prosthetic device and the osteoblastic progenitorBMSCs may be both important considerations in the development of superior implant technology
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.361-363.1063.pdf
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