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81.
82.
83.
Julius Meyer 《欧洲无机化学杂志》1902,35(4):3952-3957
84.
85.
Franz Weitzer Masaaki Naka Nataliya Krendelsberger Frank Stein Cuiyun He Yong Du Julius C. Schuster Prof. Dr. 《无机化学与普通化学杂志》2010,636(6):982-990
The constitution of the ternary system Ni/Si/Ti is investigated over the entire composition range using X‐ray diffraction (XRD), energy dispersive X‐ray spectroscopy (EDS), differential thermal analysis (DTA), and metallography. The solid state phase equilibria are determined for 900 °C. Eight ternary phases are found to be stable. The crystal structures for the phases τ1NiSiTi, τ2Ni4Si7Ti4, τ3Ni40Si31Ti13, τ4Ni17Si7Ti6, and τ5Ni3SiTi2 are corroborated. For the remaining phases the compositions are determined as Ni6Si41Ti53 (τ6), Ni16Si42Ti42(τ7), and Ni12Si45Ti43 (τ8). The reaction scheme linking the solid state equilibria with the liquidus surface is amended to account for these newly observed phases. The discrepancies between previous experimental conclusions and modeling results are addressed. The liquidus surface is dominated by the primary crystallisation field of τ1NiSiTi, the only congruently melting phase. 相似文献
86.
The synthesis of several amphiphilic, nonpeptidic scaffolds that mimic the presentation of i, i + 3 or i + 4, and i + 7 residues of a peptide alpha-helix is described. The approach uses a pyridazine core, and the synthesis involves only a few steps and minimizes the number of C-C bond-forming reactions. The versatility of the synthesis makes it suitable for the preparation of small libraries of low molecular weight alpha-helix mimetics that could be targeted to certain protein/protein interactions. 相似文献
87.
Adachi I Aihara H Asner DM Aulchenko V Aushev T Aziz T Bakich AM Bay A Bhardwaj V Bhuyan B Bischofberger M Bondar A Bozek A Bračko M Browder TE Chen P Cheon BG Chilikin K Chistov R Cho K Choi SK Choi Y Dalseno J Danilov M Doležal Z Drásal Z Eidelman S Epifanov D Fast JE Gaur V Gabyshev N Garmash A Goh YM Golob B Haba J Hara K Hara T Hayasaka K Hayashii H Higuchi T Horii Y Hoshi Y Hou WS Hsiung YB Hyun HJ Iijima T Ishikawa A Itoh R Iwabuchi M Iwasaki Y Iwashita T Julius T Kapusta P Katayama N 《Physical review letters》2012,108(17):171802
We present a precise measurement of the CP violation parameter sin2φ1 and the direct CP violation parameter A(f) using the final data sample of 772×10(6) BB[over ˉ] pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. One neutral B meson is reconstructed in a J/ψK(S)(0), ψ(2S)K(S)(0), χ(c1)K(S)(0), or J/ψK(L)(0) CP eigenstate and its flavor is identified from the decay products of the accompanying B meson. From the distribution of proper-time intervals between the two B decays, we obtain the following CP violation parameters: sin2φ1=0.667±0.023(stat)±0.012(syst) and A(f)=0.006±0.016(stat)±0.012(syst). 相似文献
88.
T. P. J. Linsinger J. Pauwels H. Schimmel A. Lamberty A. M. H. van der Veen G. Schumann L. Siekmann 《Analytical and bioanalytical chemistry》2000,368(6):589-594
Uncertainties of four enzyme-CRMs that have recently been certified in a co-operation between the IRMM and the International
Federation for Clinical Chemistry were estimated. Estimation was based on the sum of the uncertainties of characterization,
homogeneity and stability. Data from the certification collaborative study were used to estimate laboratory uncertainties,
which form the basis for the uncertainty of characterization. Estimations for the uncertainty of homogeneity were derived
from classical homogeneity studies. The estimations of uncertainty of stability caused the most difficulties. Realistic uncertainties
fitting the needs of customers while being derived from measurement data based on theoretical considerations were obtained.
Received: 11 May 2000 / Revised: 21 June 2000 / Accepted: 27 June 2000 相似文献
89.
90.
Julius Kuti 《Acta Physica Hungarica A》1997,5(3):195-237
Some non-perturbative aspects of the nucleon quark spin structure are reviewed. The first part is a brief summary of early theoretical developments in the field of polarized deep inelastic scattering of electrons on polarized nucleons and an illustration of the non-perturbative power of lattice QCD 25 years later. The second part is a short pedagogical introduction to the analysis of high energy scattering in the complex angular momentum plane, with particular emphasis on spin-dependent deep inelastic electron-nucleon scattering. The third part comprises a brief introduction to lattice QCD and its applications in the non-perturbative determination of the spin-dependent structure functions. 相似文献