|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | SIPD14091900000067显示文摘 | K.A. Olive Particle Data Group | 2014 | Chinese Physics C2014，，9： | 21 |
| 2 | Particle size characterization by ultrasonic attenuation spectra显示文摘This paper contributes to extracting information from signals of broadband ultrasonic attenuation spectrum for effective utilization in particle size characterization. The single particle scattering model and the coupled-phase model are formulated simultaneously, the relationship between particle size distribution and ultrasonic spectrum is established, and a convergence criterion for calculation is quantified. Demonstration inversion by the optimum regularization factor method is carried out to yield typical numerical results for discussion. With the experimental set-up developed by the Institute of Particle and Two-Phase Flow Measurement (IPTFM) at the University of Shanghai for Science and Technology, sand sediment particle size is measured by attenuation spectrum and analyzed using the above inversion algorithm and theoretical models. To validate the proposed ultrasonic spectrum particle sizing method, results are compared with those obtained by microscopy. | Mingxu Su, Minghua Xue, Xiaoshu Cai, Zhitao Shang, Feng Xu Institute of Particle and Two-Phase Flow Measurement, University of Shanghai for Science and Technology, Shanghai 200093, China | 2008 | Particuology2008，6，4： | 15 |
| 3 | Inconsistency between WMAP data and released map显示文摘A remarkable inconsistency between the calibrated differential time-ordered data (TOD) of the Wilkinson Microwave Anisotropy Probe (WMAP) mission,which is the input for map-making,and the cosmic microwave background (CMB) temperature maps published by the WMAP team is revealed,indicating that there must exist a serious problem in the map making routine of the WMAP team.This inconsistency is easy to be confirmed without the use of WMAP map-making software.In view of the importance of this issue for cosmology study,we invite readers to check it by themselves. | LIU Hao1 & LI TiPei1,2,3 1 Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China 2 Department of Physics & Center for Astrophysics,Tsinghua University,Beijing 100084,China 3 Department of Engineering Physics & Center for Astrophysics,Tsinghua University,Beijing 100084,China | 2010 | Chinese Science Bulletin2010，55，10： | 9 |
| 4 | Systematic distortion in cosmic microwave background maps显示文摘To minimize instrumentally the induced systematic errors,cosmic microwave background(CMB)anisotropy experiments measure temperature differences across the sky using pairs of horn antennas, temperature map is recovered from temperature difference obtained in sky survey through a map-making procedure.To inspect and calibrate residual systematic errors in the recovered temperature maps is important as most previous studies of cosmology are based on these maps.By analyzing pixel-ring coupling and latitude dependence of CMB temperatures,we find notable systematic devia- tion from CMB Gaussianity in released Wilkinson Microwave Anisotropy Probe(WMAP)maps.The detected deviation cannot be explained by the best-fit LCDM cosmological model at a confidence level above 99%and cannot be ignored for a precision cosmology study. | LIU Hao 1,3 &LI TiPei 1,2 1Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China 2Center for Astrophysics,Tsinghua University,Beijing 100084,China 3 Graduate University of Chinese Academy of Sciences,Beijing 100049,China | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，5： | 8 |
| 5 | SVOM gamma ray monitor显示文摘The space-based multi-band astronomical Variable Object Monitor(SVOM) mission is dedicated to the detection,localization and broad-band study of gamma-ray bursts(GRBs) and other high-energy transient phenomena.The gamma ray monitor(GRM) onboard is designed to observe GRBs up to 5 MeV.With this instrument,one of the key GRB parameters,Epeak,can be easily measured in the hard X-ray band.It can achieve a detection rate of 100 GRBs per year which ensures the scientific output of SVOM. | DONG YongWei,WU BoBing,LI YanGuo,ZHANG YongJie & ZHANG ShuangNan Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，S1： | 5 |
| 6 | Studies of low-lying states of even-even Xe isotopes within the nucleon pair approximation显示文摘We study the relevance of nucleon pairs with higher spins, in addition to spin-zero and spin-two pairs (i.e., S D pairs), in low-lying states of even-even Xe nuclei. By including those higher-spin pairs in our configuration, we recalculate energy level schemes, elec trical quadrupole moments, magnetic moments and electric quadrupole transition rates, for low-lying states of even-even 128-142Xe nuclei. The agreement between our calculated results and the experimental data is substantially improved in comparison with previous studies. | ZHANG LiHua1, JIANG Hui1,2 & ZHAO YuMin1,3,4 1Institute of Nuclear, Particle, Astrophysics and Cosmology, Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China 2School of Arts and Sciences, Shanghai Maritime University, Shanghai 200135, China 3Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China 4CCAST, World Laboratory, P.O. Box 8730, Beijing 100080, China | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，S1： | 5 |
| 7 | Microscopic Calculation of Parameters of the sdg Interacting Boson Model for ^(104-110)Pd Isotopes | Liu Yong~1 Shi Zhu-yi~2 Dan Han-jou~3 Sang Jian-ping~41 Institute of Particle Physics,Huazhong Normal University,Wuhan 4300702 Department of Physics,Guizhou Institute for Nationalities,Guiyang 5500253 Department of Physics,Xianning Teacher’s College,Xianning 4370004 Department of Physics,Wuhan University,Wuhan 430072 | 1995 | Chinese journal of nuclear physics1995，，3： | 5 |
| 8 | New evidence for lack of CMB power on large scales显示文摘A digitalized temperature map is recovered from the first light sky survey image published by the Planck team, from which an angular power spectrum of the cosmic microwave background (CMB) is derived. The amplitudes of the low multipoles (low-l) measured from the preliminary Planck power spectrum are significantly lower than those reported by the WMAP team. Possible systematical effects are far from enough to explain the observed low-l differences. | LIU Hao1 & LI TiPei1,2,3 1 Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 2 Department of Physics & Center for Astrophysics, Tsinghua University, Beijing 100084, China 3 Department of Engineering Physics & Center for Astrophysics, Tsinghua University, Beijing 100084, China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，3： | 5 |
| 9 | Heavy ion reactions around the Coulomb barrier显示文摘The angular distributions of fission fragments for the 32S+184W reaction near Coulomb barrier energies are measured. The ex perimental fission excitation function is obtained. The measured fission cross sections are decomposed into fusion-fission, quasi-fission and fast fission contributions by the dinuclear system (DNS) model. The hindrance to completing fusion both at small and large collision energies is explained. The fusion excitation functions of 32S+90,96Zr in an energy range from above to below the Coulomb barrier are measured and analyzed within a semi-classical model. The obvious effect of positive Q-value multi-neutron transfers on the sub-barrier fusion enhancement is observed in the 32S+96Zr system. In addition, the excitation functions of quasi-elastic scattering at a backward angle have been measured with high precision for the systems of 16O+208Pb, 196Pt, 184W, and 154,152Sm at energies well below the Coulomb barrier. Considering the deformed coupling effects, the extracted diffuseness parameters are close to the values extracted from the systematic analysis of elastic and inelastic scattering data. The elastic scattering angular distribution of 17F+12C at 60 MeV is measured and calculated by using the continuum-discretized coupled-channels (CDCC) approach. It is found that the diffuseness parameter of the real part of core-target potential has to be increased by 20% to reproduce the experimental result, which corresponds to an increment of potential depth at the surface re gion. The breakup cross section and the coupling between breakup and elastic scattering are small. | ZHANG HuanQiao1, LIN ChengJian1, JIA HuiMing1, ZHANG ChunLei1,2, ZHANG GaoLong1,3, YANG Feng1, LIU ZuHua1, AN GuangPeng1, WU ZhenDong1, XU XinXing1 & JIA Fei1 1 China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China 2 Particle Astrophysics Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China 3 School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，S1： | 3 |
| 10 | Observation constraints of the hard X-ray modulation telescope HXMT显示文摘The hard X-ray modulation telescope HXMT is a low orbit X-ray space telescope whose main science goals are to accomplish a hard X-ray all sky survey and to study timing and spectral characteristics of X-ray sources.HXMT has three kinds of science instruments:the high energy X-ray detector(HE),the medium energy X-ray detector(ME) and the low energy X-ray detector(LE).The observation schedule of HXMT is a key to achieving the science goal of HXMT,and the analysis of the observation constraints is one of the first tasks in making the observation schedule.This paper analyzes how the observation constraints influence the sky visibility and the visible time distribution of X-ray sources and discusses the schedule strategy with regard to the observation constraints. | LU Yu1,2,ZHANG WenZhao3,QU JinLu1,SONG LiMing1,GAO Jian3,ZHANG HongMei4 & OU Ge4 1 Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China 2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China 3 Department of Astronomy,Beijing Normal University,Beijing 100875,China 4 Computing Center,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，S1： | 3 |
| 11 | GRB 090423:Marking the death of a massive star at z=8.2显示文摘GRB 090423 is the new high-z record holder of Gamma-ray bursts(GRBs) with z-8.2.We present a detailed analysis of both the spectral and temporal features of GRB 090423 observed with Swift/BAT and Fermi/GBM.We find that the T90 observed with BAT in the 15-150 keV band is 13.2 s,corresponding to-1.4 s at z=8.2.It once again gives rise to the issue of whether the progenitors of high-z GRBs are massive stars or mergers since the discovery of GRB 080913 at z=6.7.In comparison with the T90 distribution in the burst frame of the current redshift-known GRB sample,we find that it is marginally grouped into the long group(Type II GRBs).The spectrum observed with both BAT and GBM is well fitted by a power-law with exponential cutoff,which yields an Ep=(50.4±7.0) keV.The event satisfies the Amati-relation well for Type II GRBs within their 3σ uncertainty range.Our results indicate that this event would be produced by the death of a massive star.Based on the Amati-relation,we derive its distance modulus,which follows the Hubble diagram of the concordance cosmology model at a redshift of-8.2. | LIN Lin1,LIANG EnWei2 & ZHANG ShuangNan3 1 Department of Physics and Center for Astrophysics,Tsinghua University,Beijing 100084,China 2 Department of Physics,Guangxi University,Nanning 530004,China 3 Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，S1： | 2 |
| 12 | A study on the sharp knee and fine structures of cosmic ray spectra显示文摘The paper investigates the overall and detailed features of cosmic ray(CR) spectra in the knee region using the scenario of nuclei-photon interactions around the acceleration sources.Young supernova remnants can be the physical realities of such kind of CR acceleration sites.The results show that the model can well explain the following problems simultaneously with one set of source parameters:the knee of CR spectra and the sharpness of the knee,the detailed irregular structures of CR spectra,the so-called'component B'of Galactic CRs,and the electron/positron excesses reported by recent observations.The coherent explanation serves as evidence that at least a portion of CRs might be accelerated at the sources similar to young supernova remnants,and one set of source parameters indicates that this portion mainly comes from standard sources or from a single source. | WANG Bo1,YUAN Qiang1,FAN Chao1,2,ZHANG JianLi1,HU HongBo1 & BI XiaoJun1 1 Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China 2 Department of Physics,Shandong University,Jinan 250100,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，5： | 2 |
| 13 | Light collection of the POLAR detector显示文摘POLAR is a compact polarimeter dedicated to measuring the polarization of GRBs between 50-350 keV.The light collection of 200 mm×6 mm×6 mm plastic bars has been simulated and optimized in order to get uniform response to X-rays at different points along one single bar.According to the Monte Carlo results,the amplitude uniformity strongly depends on the level of polishing of the scintillator surface and the covering.A uniformity of 89% is achieved with a prototype constructed by a non position-sensitive PMT and an array of 4×4 bars. | DONG YongWei,LI YanGuo,WU BoBing,ZHANG YongJie & ZHANG ShuangNan Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，S1： | 1 |
| 14 | Simulation of the in-flight calibration of the collimator alignment and PSF for HXMT显示文摘The Hard X-ray Modulation Telescope(HXMT) is an X-ray astronomical satellite in 1-250 keV,consisting of three collimated instruments.We present the in-flight calibration approach of the collimator alignment and Point Spread Function(PSF) for HXMT,using both the direct fitting method and the imaging method.According to observational simulations of the Crab Nebula,we find that these two methods produce almost the same calibration accuracy of the alignment,and with a one-day scanning observation,the alignment can be calibrated to better than 0.45' and 0.1' along the wide and narrow directions of the Field of View(FOV) for a detector module,which corresponds to a localization accuracy of better than 0.1' and meets the scientific requirement. | XIONG ShaoLin,LI XinQiao,QU JinLu & LU FangJun Key Laboratory for Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences(CAS),Beijing 100049,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，S1： | 1 |
| 15 | A quantitative study using a tissue-digestion method显示文摘 | Kobayashi A Freeman MA Bonfield W Number of polyethylene particles and osteolysis in total joint replacements | 1997 | J Bone Joint Surg Br1997，79，5： | 1 |
| 16 | Study on ice slurry production by water spray显示文摘 | particle Applied KIM B S SHIN H T LEE Y P | 2001 | International Journal of Refrigeration2001，24，2： | 1 |
| 17 | internal structure studied by fluorescence nonradiative energy transfer 显示文摘 | Marion P Beinert G Juhue D et aL Core -shell latex particles containing a fluorinated polymer in the shell 2 | 1997 | Macromolecules1997，30，1： | 1 |
| 18 | Review of Particle Physics显示文摘 | K Nakamura Particle Data Group | 2010 | Journal of Physics G: Nuclear and Particle Physics (A)2010，，7： | 1 |
| 19 | 显示文摘 | | 1989 | Chem Rev1989，89，： | 1 |
| 20 | Summary tables of particle physics 显示文摘 | Particle Data Group | 2000 | Eur Phys J2000，15，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员