作者机构：
[Cheng, Guang-Ling; Hu, Xiang-Ming] Department of Physics, Huazhong Normal University, Wuhan 430079, China;Department of Physics, Xiaogan University, Xiaogan 432000, China;[Zhang, Xiu] Department of Physics, Huazhong Normal University, Wuhan 430079, China<&wdkj&>Department of Physics, Xiaogan University, Xiaogan 432000, China
通讯机构：
[Hu, X.-M.] D;Department of Physics, , Wuhan 430079, China
摘要：
We studied the evolution of isolated strange stars (SSs) synthetically, considering the influence of r-mode instability. Our results show that the cooling of SSs with non-ultrastrong magnetic fields is delayed by heating due to r-mode damping for millions of years, while the spin-down of the stars is dominated by gravitational radiation (GR). Especially for the SSs in a possible existing colour–flavour locked (CFL) phase, the effect of r-mode instability on the evolution of stars becomes extremely important because the viscosity, neutrino emissivity and specific heat involving pairing quarks are blocked. It leads to the cooling of these colour superconducting stars being very slow and the stars can remain at high temperature for millions of years, which differs completely from previous understanding. In this case, an SS in CFL phase can be located at the bottom of its r-mode instability window for a long time, but does not spin-down to a very low frequency for hours.
摘要：
Boost invariance and multiplicity dependence of the charge balance function are studied in pi(+)p and K(+)p collisions at 250 GeV/c incident beam momentum with full acceptance coverage. Charge balance, as well as charge fluctuations, are found to be boost invariant over the whole rapidity region, but both depend on the size of the rapidity window. It is also found that the balance function becomes narrower with increasing multiplicity, which is consistent with the narrowing of the balance function with increasing centrality and/or system size, as observed in current relativistic heavy ion experiments. (c) 2006 Elsevier B.V. All rights reserved.
摘要：
The characterization of species in aqueous solutions has presented a challenge to analytical and physical chemist, because the IR absorption of the aqueous solvent is so intense that it becomes difficult to observe the solute in the water by IR absorption. In contrast, Raman spectrum of the solute is unaffected by the water, so the weak scattering of water makes the technique well suited to aqueous samples, and the Raman spectrum exhibits well-defined bands corresponding to fundamental modes of vibration. In addition, Raman spectroscopy has some inherent advantages in aqueous solution analysis, because the spectral features of signals from different species are much more distinct, and it provides characteristic signatures for samples, such as blood, protein and cholesterol. All the advantages make Raman spectroscopy be a potential alternative for the study of aqueous solutions. Now, Raman spectroscopy has been applied to studying samples in aqueous solutions, blood serum, intracellular protein levels. Now, industrial wasted water contains many organic contaminants, and it is necessary to determine and monitor these contaminants. The paper first introduces Raman spectroscopy, and then describes its applications to determining the components in aqueous solutions, analyzes and assignes the Raman spectra of o-dichlorobenzene, o-xylene, m-xylene and p-xylene in detail. The experimental results demonstrate that Raman spectroscopy is a particularly powerful technique for aqueous solutions analyses.
作者机构：
[Cadman, R. V.; Krueger, K.; McClain, C. J.; Spinka, H. M.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA.;[Barnby, L. S.; Burton, T. P.; Gaillard, L.; Jones, P. G.; Nelson, J. M.; Timmins, A. R.] Univ Birmingham, Birmingham, W Midlands, England.;[Bland, L. C.; Bravar, A.; Christie, W.; DePhillips, M.; Didenko, L.; Dunlop, J. C.; Fachini, P.; Fine, V.; Fisyak, Y.; Hallman, T. J.; Landgraf, J. M.; Laue, F.; Lauret, J.; Lebedev, A.; LeVine, M. J.; Ljubicic, T.; Longacre, R. S.; Love, W. A.; Ludlam, T.; Lynn, D.; Ogawa, A.; Panitkin, S. Y.; Perevoztchikov, V.; Potekhin, M.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Xu, Z.; Zhang, H.] Brookhaven Natl Lab, Upton, NY 11973 USA.;[Hughes, E. W.; Relyea, D.] CALTECH, Pasadena, CA 91125 USA.;[Crawford, H. J.; Engelage, J.; Judd, E. G.; Perkins, C.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
通讯机构：
[Abelev, B. I.] A;Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
作者机构：
[Mohanty, B.] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Kolkata 700064, W Bengal, India.;Argonne Natl Lab, Argonne, IL 60439 USA.;Univ Birmingham, Birmingham B15 2TT, W Midlands, England.;Brookhaven Natl Lab, Upton, NY 11973 USA.;CALTECH, Pasadena, CA 91125 USA.
通讯机构：
[Mohanty, B.] B;Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Kolkata 700064, W Bengal, India.
关键词：
particle production;perturbative quantum chromodynamics;fragmentation function;Cronin effect and x(T)-scating
摘要：
We present the transverse momentum (PT) spectra for identified charged pions, protons and anti-protons from p + p and d + Au collisions at root sNN = 200 GeV. The spectra are measured around midrapidity (vertical bar y vertical bar < 0.5) over the range of 0.3 < PT < 10 GeV/c with particle identification from the ionization energy loss and its relativistic rise in the time projection chamber and time-of-flight in STAR. The charged pion and proton + anti-proton spectra at high PT in p + p and d + Au collisions are in good agreement with a phenomenological model (EPOS) and with next-to-leading order perturbative quantum chromodynamic (NLO pQCD) calculations with a specific fragmentation scheme and factorization scale. We found that all proton, anti-proton and charged pion spectra in p + p collisions follow x(T)-scating for the momentum range where particle production is dominated by hard processes (p(T) greater than or similar to 2 GeV/c). The nuclear modification factor around midrapidity is found to be greater than unity for charged pions and to be even larger for protons at 2 < PT < 5 GeV/c. (c) 2006 Elsevier B.V. All rights reserved.
期刊：
Materials Chemistry and Physics,2006年95(2-3):206-210 ISSN：0254-0584
通讯作者：
Yu, J.(jiaguoyu@yahoo.com)
作者机构：
Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China.;Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.;Wuhan Univ, Ctr Elect Microscopy, Wuhan 430072, Peoples R China.;[Xiong, JF; Cheng, B; Liu, SW; Yu, JG] State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;[Wang, JB] Center for Electron Microscopy, Wuhan University, Wuhan 430072, China
通讯机构：
State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, China
作者机构：
[Tang, Yiwen] Cent China Normal Univ, Inst Nano Sci & Technol, Wuhan 430079, Peoples R China.;Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China.;Wuhan Univ, Ctr Electron Microscopy, Wuhan 430072, Peoples R China.
通讯机构：
[Tang, Yiwen] C;Cent China Normal Univ, Inst Nano Sci & Technol, Wuhan 430079, Peoples R China.
摘要：
Nanobelts of nickel hydroxyl sulfate have been prepared on a large scale via a simple template-free hydrothermal reaction on the basis of a complex [Ni(NH(3))(6)](2+) formed with Ni(2+) and ammonia in an ethanol-water solution. The as-synthesized nanobelts were single crystals, with several tens of microns in length and 50-150 nm in width. The nanobelts were enclosed by top surfaces (100) and side surfaces (001) and their growth direction was parallel to [010]. The function of aqueous ammonia and ethanol was discussed. Furthermore, nanostructures of a mixture of crystralline NiO and amorphous nickel sulfate with various morphologies, such as nanobelts, porous nanobelts, and nanoparticles, were obtained by the thermal treatment of the as-synthesized Ni(SO(4))(0.3)(OH)(1.4) nanobelts at different temperatures.
期刊：
Journal of Electronic Materials,2006年35(5):954-957 ISSN：0361-5235
通讯作者：
Xu, C.
作者机构：
[Xu, C.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.;Cent China Normal Univ, Nano Sci & Technol Res Ctr, Wuhan 430079, Peoples R China.;Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China.;Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA.
通讯机构：
[Xu, C.] U;Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
摘要：
A new technique to fabricate nylon-6/carbon nanotube (PA6/CNT) composites is presented. The method involves a pretreatment of carbon nanotubes synthesized by catalytic pyrolysis of hydrocarbon and an improved in-situ process for mixing nanotubes with the nylon 6 matrix. A good bond between carbon nanotubes and the nylon-6 matrix is obtained. Mechanical property measurements indicate that the tensile strength of PA6/CNT composites is improved significantly while the toughness and elongation are somewhat compromised. Scanning electron microscopy (SEM) analysis of the fractured tensile specimens reveals cracking initiated at the wrapping of the CNTs PA6 layer/PA6 matrix interface rather than at the PA6/CNT interface.
