Qun Wang

Publication List Details

Period

1992 - 2009

Number

72

Co-Authors

Mini-jet thermalization and diffusion of transverse momentum correlation in high-energy heavy-ion collisions (2009)

Pang, Long-gang, Wang, Qun, Wang, Xin-Nian, Xu, Rong

Transverse momentum correlation in azimuthal angle of produced hadrons due to mini-jets are studied with HIJING Monte Carlo model in high-energy heavy-ion collisions. Jet quenching in the early stage...

Symmetry breaking patterns and collective modes of spin-one color superconductors (2009)

Brauner, Tomas, Pang, Jin-yi, Wang, Qun

Spin-one color superconductor is a viable candidate phase of dense matter in the interiors of compact stars. Its low-energy excitations will influence the transport properties of such matter and thus...

Shear Viscosity of a Gluon Plasma in Perturbative QCD (2009)

Chen, Jiunn-Wei, Dong, Hui, Ohnishi, Kazuaki, Wang, Qun

We calculate the shear viscosity (eta) to entropy density (s) ratio eta/s of a gluon plasma in kinetic theory. Due to the suppressed contribution to eta in the gg->gg forward scattering, it is known...

A Miniature Probe for Ultrasonic Penetration of a Single Cell (2009)

Ting Wu, Zhaoying Zhou, Qun Wang, Xing Yang, Mingfei Xiao

Although ultrasound cavitation must be avoided for safe diagnostic applications, the ability of ultrasound to disrupt cell membranes has taken on increasing significance as a method to facilitate...

1-{1-[(2-Chlorothiazol-5-yl)methyl]-5-methyl-1H-1,2,3-triazol-4-yl}ethanone (2009)

Xiao-Bao Chen, Jia-Hua Tian, Jing Xu, Yong Yu, Qun Wang

In the title compound, C9H9ClN4OS, the two rings enclose a dihedral angle of 84.67 (11)°. Intermolecular C—H...O and C—H...N hydrogen bonds stabilize the crystal packing.

A new approach to bulk viscosity in strange quark matter at high densities (2008)

Chen, Shou-wan, Dong, Hui, Wang, Qun

A new method is proposed to compute the bulk viscosity in strange quark matter at high densities. Using the method it is straightforward to prove that the bulk viscosity is positive definite, which...

Inhibition of hepatocelluar carcinoma MAT2A and MAT2beta gene expressions by single and dual small interfering RNA (2008)

Wang, Qun, Liu, Quan-yan, Liu, Zhi-Su, Qian, Qun, Sun, Quan, Pan, Ding-yu

Abstract RNA interference (RNAi) has been successfully applied in suppression of hepatic cancer genes. In hepatocelluar carcinoma cell, one methionine adenosyltransferase (MAT) isozyme, MATII was...

Shear viscosity in late time of hydrodynamic evolution in AdS/CFT duality (2008)

Pu, Shi, Wang, Qun

We investigate the shear viscosity $\eta$ and the entropy density $s$ of strongly coupled $\mathcal{N}=4$ super Yang-Mills (SYM) plasma in late time of hydrodynamic evolution with AdS/CFT duality and...

An Abelian Ward identity and the vertex corrections to the color superconducting gap (2008)

Xu, Hao-jie, Wang, Qun

We derive an Abelian-like Ward identity in color superconducting phase and calculate vertex corrections to the color superconducting gap. Making use of the Ward identity, we show that subleading...

Global quark polarization in non-central A+A collisions (2008)

Gao, Jian-Hua, Chen, Shou-Wan, Deng, Wei-tian, Tang, Zuo-Tang, Wang, Qun, Wang, Xin-Nian

Partons produced in the early stage of non-central heavy-ion collisionscan develop a longitudinal fluid shear because of unequal local number densities of participant target and projectile nucleons....

BCS-BEC crossover in a relativistic boson-fermion model beyond mean field approximation (2008)

Deng, Jian, Wang, Jin-cheng, Wang, Qun

We investigate the fluctuation effect of the di-fermion field in the crossover from Bardeen-Cooper-Schrieffer (BCS) pairing to a Bose-Einstein condensate (BEC) in a relativistic superfluid. We work...

A general derivation of differential cross section in quark-quark scatterings at fixed impact parameter (2008)

Chen, Shou-wan, Deng, Jian, Gao, Jian-hua, Wang, Qun

We propose a general derivation of differential cross section in quark-quark scatterings at fixed impact parameters. The derivation is well defined and free of ambiguity in the conventional one. The...

Neutrino Emission From Inhomogeneous Pion Condensed Quark Matter (2007)

Huang, Xuguang, Wang, Qun, Zhuang, Pengfei

It is believed that quark matter can exist in neutron star interior if the baryon density is high enough. When there is a large isospin density, quark matter could be in a pion condensed phase. We...

Global quark polarization in non-central $A+A$ collisions (2007)

Gao, Jian-Hua, Chen, Shou-Wan, Deng, Wei-tian, Liang, Zuo-Tang, Wang, Qun, Wang, Xin-Nian

Partons produced in the early stage of non-central heavy-ion collisions can develop a longitudinal fluid shear because of unequal local number densities of participant target and projectile nucleons....

Neutrino Emission From Direct Urca Processes in Pion Condensed Quark Matter (2007)

Huang, Xuguang, Wang, Qun, Zhuang, Pengfei

We study neutrino emission from direct Urca processes in pion condensed quark matter. In compact stars with high baryon density, the emission is dominated by the gapless modes of the pion...

Bulk viscosity in nuclear and quark matter: A short review (2007)

Dong, Hui, Su, Nan, Wang, Qun

The history and recent progresses in the study of bulk viscosity in nuclear and quark matter are reviewed. The constraints from baryon number conservation and electric neutrality in quark matter on...

Baryon number conservation and enforced electric charge neutrality for bulk viscosity in quark matter (2007)

Dong, Hui, Su, Nan, Wang, Qun

General constraints on fluid velocity divergences for particles in quark matter are derived from baryon number conservation and enforced electric charge neutrality. A new oscillation pattern in...

Relativistic BCS-BEC crossover in a boson-fermion model (2006)

Deng, Jian, Schmitt, Andreas, Wang, Qun

We investigate the crossover from Bardeen-Cooper-Schrieffer (BCS) pairing to a Bose-Einstein condensate (BEC) in a relativistic superfluid within a boson-fermion model. The model includes, besides...

Some issues about neutrino processes in color superconducting quark matter (2006)

Wang, Qun

Several relevant issues in computing neutrino emissivity in Urca processes in color superconducting quark matter are addressed. These include: (1) The constraint on $u$ quark abundance is given from...

Phase space and quark mass effects in neutrino emissions in a color superconductor (2006)

Wang, Qun, Wang, Zhi-gang, Wu, Jian

We study the phase space for neutrino emissions with massive quarks in direct Urca processes in normal and color superconducting quark matter. We derive in QCD and the NJL model the Fermi momentum...

Neutrino emission and cooling rates of spin-one color superconductors (2005)

Schmitt, Andreas, Shovkovy, Igor A., Wang, Qun

Neutrino emissivities due to direct Urca processes of several spin-one color-superconducting phases of dense quark matter are calculated. In particular, the role of anisotropies and nodes of the gap...

Pulsar kicks via spin-1 color superconductivity (2005)

Schmitt, Andreas, Shovkovy, Igor A., Wang, Qun

We propose a new neutrino propulsion mechanism for neutron stars which can lead to strong velocity kicks, needed to explain the observed bimodal velocity distribution of pulsars. The spatial...

The non-Abelian feature of parton energy loss in energy dependence of jet quenching in high-energy heavy-ion collisions (2004)

Wang, Qun, Wang, Xin-nian

One of the non-Abelian features of parton energy loss is the ratio $\Delta E_g/\Delta E_q=9/4$ between gluon and quark jets. Since jet production rate is dominated by quark jets at high...

Production rates for hadrons, pentaquarks $\Theta ^+$ and $\Theta ^{*++}$, and di-baryon $(\Omega\Omega)_{0^{+}}$ in relativistic heavy ion collisions by a quark combination model (2004)

Shao, Feng-lan, Xie, Qu-bing, Wang, Qun

The hadron production in relativistic heavy ion collisions is well described by the quark combination model. The mixed ratios for various hadrons and the transverse momentum spectra for long-life...

A General Effective Action for High-Density Quark Matter (2004)

Reuter, Philipp T., Wang, Qun, Rischke, Dirk H.

We derive a general effective action for quark matter at nonzero temperature and/or nonzero density. For this purpose, we distinguish irrelevant from relevant quark modes, as well as hard from soft...

Recent developments in weak-coupling color superconductivity (2004)

Wang, Qun

Recent developments in weak-coupling color superconductivity are reviewed. These developments are as follows. The mean field gap equation is solved for most common superconducting phases up to...

Generalized Ward identity and gauge invariance of the color-superconducting gap (2004)

Hou, Defu, Wang, Qun, Rischke, Dirk H.

We derive a generalized Ward identity for color-superconducting quark matter via the functional integral approach. The identity implies the gauge independence of the color-superconducting gap...

Electromagnetic Meissner effect in spin-one color superconductors (2003)

Schmitt, Andreas, Wang, Qun, Rischke, Dirk H.

It is shown that color-superconducting quark matter, where quarks of the same flavor form Cooper pairs with spin one, exhibits an electromagnetic Meissner effect. This is in contrast to spin-zero...

When the Transition Temperature in Color Superconductors is Not Like in BCS Theory (2002)

Schmitt, Andreas, Wang, Qun, Rischke, Dirk H.

We study color superconductivity with $N_f=1,2,$ and 3 massless flavors of quarks. We present a general formalism to derive and solve the gap equations for condensation in the even-parity channel....

{Probing Colour Separate States in $e^+ e^-$ annihilation at $Z^0$ pole (2002)

Li, Shi-yuan, Shao, Feng-lan, Xie, Qu-bing, Wang, Qun

Hadronic events in $e^+ e^- \to Z^0$ are generated by a Monte-Carlo model including the production of colour separate states. These events are compared with those produced by the JETSET with default...

Systems approach to modeling the Token Bucket algorithm in computer networks (2002)

N. U. Ahmed, Qun Wang, L. Orozco Barbosa

In this paper, we construct a new dynamic model for the Token Bucket (TB) algorithm used in computer networks and use systems approach for its analysis. This model is then augmented by adding a...

Kinetic equation for gluons at the early stage (2001)

Wang, Qun, Redlich, Krzysztof, Stöcker, Horst, Greiner, Walter

We derive the kinetic equation for pure gluon QCD plasma in a general way, applying the background field method. We show that the quantum kinetic equation contains a term as in the classical case,...

How the quark self-energy affects the color-superconducting gap (2001)

Wang, Qun, Rischke, Dirk H.

We consider color superconductivity with two flavors of massless quarks which form Cooper pairs with total spin zero. We solve the gap equation for the color-superconducting gap parameter to...

Properties of color singlet chain states in $e^+e^-$ annihilation (2000)

Wang, Qun, Gustafson, Gösta, Jin, Yi, Xie, Qu-bing

We use the method of the color effective Hamiltonian to study the structure of color singlet chain states in $N_c=3$ and in the large $N_c$ limit. In order to obtain their total fraction when $N_c$...

Color Current Induced by Gluon in Background Field Method of QCD (2000)

Wang, Qun, Kao, Chung-Wen, Nayak, Gouranga C., Stoecker, Horst, Greiner, Walter

By using the background field method of QCD in a path integral approach, we derive the equation of motion for the classical chromofield and for the gluon in a system containing the gluon and the...

$e^{+}e^{-}\to Z^0Z^0\to b\bar{b}c\bar{c}$ events as model independent probe of colour reconnection effects (1999)

Li, Shi-yuan, Si, Zong-guo, Xie, Qu-bing, Wang, Qun

According to the basic properties of QCD, colour reconnection effects can occur in hadronic processes at high energies. The comparison of $e^{+}e^{-}\to Z^0Z^0\to q\bar{q}q'\bar{q'}$ events with the...

Contribution of Colour-singlet Process $\Upsilon \to J/\Psi + c\bar{c}g$ to $\Upsilon \to J/\Psi + X$ (1999)

Li, Shi-yuan, Xie, Qu-bing, Wang, Qun

We show that the colour-singlet process $\Upsilon \to J/\Psi + c\bar{c}g$ significantly contributes to the inclusive process $\Upsilon \to J/\Psi + X$. We calculate the partial width and the momentum...

Color separate singlets in $e^+e^-$ annihilation (1999)

Wang, Qun, Gustafson, Gosta, Xie, Qu-bing

We use the method of color effective Hamiltonian to study the properties of states in which a gluonic subsystem forms a color singlet, and we will study the possibility that such a subsystem...

Self-development through classroom observation: changing perceptions in China (1998)

Wang, Qun, Seth, Nicola

In China, classroom observation can be a discouraging experience, often giving rise to resentment. Research was jointly carried out by a British lecturer and her Chinese counterpart at the Language...

Study of Baryon Antibaryon Rapidity Correlation in e^+e^- Annihilation by Quark Combination Model (1997)

Si, Zong-Guo, Xie, Qu-Bing, Wang, Qun

We use Quark Combination Model to study baryon antibaryon rapidity correlation in e^+e^- annihilation and compare our predictions with the available data. We find that these results and relevant...

Probability of Color Rearrangement at Partonic Level in Hadronic W^+W^- Decays (1997)

Si, Zong-Guo, Wang, Qun, Xie, Qu-Bing

A strict method to calculate the color rearrangement probability at partonic level in hadronic $W^+W^-$ decays is proposed. The color effective Hamiltonian $H_c$ is constructed from invariant...

Studies on aggregation and heteroaggregation in particle separation systems / (1992)

Wang, Qun.

Thesis (Doct. Tech.) - Helsinki University of Technology, 1992.

Studies on aggregation and heteroaggregation in particle separation systems / (1992)

Wang, Qun.

Nimiösivulla myös: Helsinki University of Technology, Department of Material Science and Rock Engineering, Laboratory of Mineral and Particle Technology.

An alternative cytokinin biosynthesis pathway

Åstot, Crister, Dolezal, Karel, Nordström, Anders, Wang, Qun, Kunkel, Tim, Moritz, Thomas, ...

Studies of de novo cytokinin biosynthesis in isopentenyltransferase (ipt)-transformed Arabidopsis thaliana, involving in vivo deuterium labeling and mass spectrometry, showed that the biosynthetic...

Staphylococcus aureus Strains That Express Serotype 5 or Serotype 8 Capsular Polysaccharides Differ in Virulence

Watts, Andrew, Ke, Danbing, Wang, Qun, Pillay, Anil, Nicholson-Weller, Anne, Lee, Jean C.

Most isolates of Staphylococcus aureus produce a serotype 5 (CP5) or 8 (CP8) capsular polysaccharide. To investigate whether CP5 and CP8 differ in their biological properties, we created isogenic...

Platinum anticancer drug damage enforces a particular rotational setting of DNA in nucleosomes

Danford, Andrew J., Wang, Dong, Wang, Qun, Tullius, Thomas D., Lippard, Stephen J.

We constructed two site-specifically modified nucleosomes containing an intrastrand cis-{Pt(NH3)2}2+ 1,3-d(GpTpG) cross-link, similar to one formed by the anticancer drugs carboplatin and cisplatin...

An alternative cytokinin biosynthesis pathway

Åstot, Crister, Dolezal, Karel, Nordström, Anders, Wang, Qun, Kunkel, Tim, Moritz, Thomas, ...

Studies of de novo cytokinin biosynthesis in isopentenyltransferase (ipt)-transformed Arabidopsis thaliana, involving in vivo deuterium labeling and mass spectrometry, showed that the biosynthetic...

Staphylococcus aureus Strains That Express Serotype 5 or Serotype 8 Capsular Polysaccharides Differ in Virulence

Watts, Andrew, Ke, Danbing, Wang, Qun, Pillay, Anil, Nicholson-Weller, Anne, Lee, Jean C.

Most isolates of Staphylococcus aureus produce a serotype 5 (CP5) or 8 (CP8) capsular polysaccharide. To investigate whether CP5 and CP8 differ in their biological properties, we created isogenic...

Platinum anticancer drug damage enforces a particular rotational setting of DNA in nucleosomes

Danford, Andrew J., Wang, Dong, Wang, Qun, Tullius, Thomas D., Lippard, Stephen J.

We constructed two site-specifically modified nucleosomes containing an intrastrand cis-{Pt(NH3)2}2+ 1,3-d(GpTpG) cross-link, similar to one formed by the anticancer drugs carboplatin and cisplatin...

Phosphorylation of tau antagonizes apoptosis by stabilizing β-catenin, a mechanism involved in Alzheimer's neurodegeneration

Li, Hong-Lian, Wang, Hai-Hong, Liu, Shi-Jie, Deng, Yan-Qiu, Zhang, Yong-Jie, Tian, Qing, ...

Hyperphosphorylated tau is the major protein subunit of neurofibrillary tangles in Alzheimer's disease (AD) and related tauopathies. It is not understood, however, why the neurofibrillary...

A bacterial carbohydrate links innate and adaptive responses through Toll-like receptor 2

Wang, Qun, McLoughlin, Rachel M., Cobb, Brian A., Charrel-Dennis, Marie, Zaleski, Kathleen J., Golenbock, Douglas, ...

Commensalism is critical to a healthy Th1/Th2 cell balance. Polysaccharide A (PSA), which is produced by the intestinal commensal Bacteroides fragilis, activates CD4+ T cells, resulting in a Th1...

Effects of over-expressing resistin on glucose and lipid metabolism in mice*

Liu, You, Wang, Qun, Pan, Ying-bin, Gao, Zhi-jie, Liu, Yan-fen, Chen, Shao-hong

Resistin, a newly discovered peptide hormone mainly secreted by adipose tissues, is present at high levels in serum of obese mice and may be a potential link between obesity and insulin resistance in...

Inhibition of hepatocelluar carcinoma MAT2A and MAT2beta gene expressions by single and dual small interfering RNA

Wang, Qun, Liu, Quan-yan, Liu, Zhi-Su, Qian, Qun, Sun, Quan, Pan, Ding-yu

RNA interference (RNAi) has been successfully applied in suppression of hepatic cancer genes. In hepatocelluar carcinoma cell, one methionine adenosyltransferase (MAT) isozyme, MATII was found to...

ABRASIVE WEAR BEHAVIOR OF WC REINFORCED Ni-BASED COMPOSITE COATING SPRAYED AND FUSED BY OXY-ACETYLENE FLAME

QUN WANG, ZHENHUA CHEN, ZHANG XIONG DING, DING CHEN

Microstructure of WC reinforced Ni-based self-fluxing alloy composite coating sprayed and fused by oxy-acetylene flame was investigated by scanning electron microscopy and energy dispersive X-ray...

Lentivirus mediated shRNA interference targeting MAT2B induces growth-inhibition and apoptosis in hepatocellular carcinoma

Wang, Qun, Liu, Quan-Yan, Liu, Zhi-Su, Qian, Qun, Sun, Quan, Pan, Ding-Yu

AIM: To investigate the effects of lentivirus vector mediated short hairpin RNA interference targeting methionine adenosyltransferase 2β gene (LV-shMAT2B) on hepatocellular carcinoma (HCC) cells.

Treatment of upper gastrointestinal fistula and leakage with personal stage nutrition support

Wang, Qun, Liu, Zhi-Su, Qian, Qun, Sun, Quan, Pan, Ding-Yu, He, Yue-Ming

AIM: To investigate the feasibility of treatment for upper gastrointestinal fistula and leakage with personal stage nutrition support.

Global Levels of Histone Modifications Predict Prognosis in Different Cancers

Seligson, David B., Horvath, Steve, McBrian, Matthew A., Mah, Vei, Yu, Hong, Tze, Sheila, ...

Cancer cells exhibit alterations in histone modification patterns at individual genes and globally at the level of single nuclei in individual cells. We demonstrated previously that lower...