H. Xu

Publication List Details

Period

1990 - 2008

Number

121

Co-Authors

Formation of X-Ray Cavities by the Magnetically Dominated Jet-Lobe System in a Galaxy Cluster (2008)

Xu, H., Li, H., Collins, D., Li, S., Norman, M. L.

We present cosmological magnetohydrodynamic simulations of the formation of a galaxy cluster with magnetic energy feedback from an active galactic nuclei (AGN). We demonstrate that X-ray cavities can...

Decoherence in dc SQUID phase qubits (2008)

Paik, Hanhee, Dutta, S. K., Lewis, R. M., Palomaki, T. A., Cooper, B. K., Ramos, R. C., ...

We report measurements of Rabi oscillations and spectroscopic coherence times in an Al/AlOx/Al and three Nb/AlOx/Nb dc SQUID phase qubits. One junction of the SQUID acts as a phase qubit and the...

Universal intermittent properties of particle trajectories in highly turbulent flows (2008)

Arneodo, ICTR: A., Benzi, R., Berg, J., Biferale, L., Bodenschatz, E., Busse, A., ...

We present a collection of eight data sets, from state-of-the-art experiments and numerical simulations on turbulent velocity statistics along particle trajectories obtained in different flows with...

Influence of magnetic field offsets on the resistance of magnetic barriers in two-dimensional electron gases (2007)

Hugger, S., Cerchez, M., Xu, H., Heinzel, T.

Magnetic barriers in two-dimensional electron gases are shifted in B space by homogeneous, perpendicular magnetic fields. The magnetoresistance across the barrier shows a characteristic asymmetric...

Lagrangian Structure Functions in Turbulence: A Quantitative Comparison between Experiment and Direct Numerical Simulation (2007)

Biferale, L., Bodenschatz, E., Cencini, M., Lanotte, A. S., Ouellette, N. T., Toschi, F., ...

A detailed comparison between data from experimental measurements and numerical simulations of Lagrangian velocity structure functions in turbulence is presented. By integrating information from...

HLA-DQB1, -DQA1, -DRB1 Linkage Disequilibrium and Haplotype Diversity in a Mestizo Population from Guadalajara, Mexico (2007)

Cortes, L.M., Baltazar, L.M., Perea, F.J., Gallegos-Arreola, M.P., Flores, S.E., Sandoval, L., ...

HLA-DQB1, -DQA1, and -DRB1 genes were typed by polymerase chain reaction with sequence-specific primer (PCR-SSP) in 159 healthy volunteers from 32 families living in Guadalajara, Mexico. Three-locus...

Combining software quality analysis with dynamic event/fault trees for high assurance systems engineering (2007)

Dugan, J.B., Pai, G.J., Xu, H.

We present a novel approach for probabilistic risk assessment (PRA) of systems which require high assurance that they will function as intended. Our approach uses a new model i.e., a dynamic...

Combining software quality analysis with dynamic event/fault trees for high assurance systems engineering (2007)

Dugan, J.B., Pai, G.J., Xu, H.

We present a novel approach for probabilistic risk assessment (PRA) of systems which require high assurance that they will function as intended. Our approach uses a new model i.e., a dynamic...

Synthesis of single-crystalline tungsten nanowires by nickel-catalyzed vapor-phase method at 850oC (2007)

Wang, S, He, Y, Zou, J., Jiang, Y, Xu, H, Huang, B, ...

Single-crystalline tungsten nanowires have been synthesized by nickel-catalyzed vapor-phase methods at a temperature of 850 degrees C. The synthesis temperature is significantly below the eutectic...

Super-Orthogonal space-time trellis codes for virtual antenna arrays. (2006)

Sokoya, OA, Xu, H, Takawira, F

This paper investigates the performance of super-orthogonal space time trellis codes when Virtual Antenna Arrays (VAA) is employed. The concept of virtual antenna arrays was developed to emulate...

Super-Orthogonal space-time trellis codes for virtual antenna arrays. (2006)

Sokoya, OA, Xu, H, Takawira, F

This paper investigates the performance of super-orthogonal space time trellis codes when Virtual Antenna Arrays (VAA) is employed. The concept of virtual antenna arrays was developed to emulate...

Requirements Process Establishment and Improvement from the Viewpoint of Cybernetics. (2006)

Sawyer, Peter, Sommerville, I., Xu, H.

As a branch of engineering cybernetics, automatic control theory has been extensively applied to improve products, increase productivity and rationalize management. This paper adapts the principles...

Reaction kinetics of coarse-grained equilibrium polymers: a Brownian Dynamics study (2006)

Huang, C-C, Xu, H., Crevel, F., Wittmer, J.

Self-assembled linear structures like giant cylindrical micelles or discotic molecules in solution stacked in flexible columns are systems reminiscent of polydisperse polymer solutions.These...

Heat stress in wheat (Triticum aestivum L.) : Effects on grain growth and quality traits (2006)

Spiertz, J.H.J., Hamer, R.J., Xu, H., Primo Martin, C., Don, C.

Heat stress effects on grain dry mass and quality were studied in spring wheat genotypes (Triticum aestivum L.). Three cultivars were chosen with respect to heat tolerance: Lavett (genotype 1),...

Analysis of Cold Air Distribution System in an Office Building by the Numerical Simulation Method (2006)

Jian, Y., Li, D., Xu, H., Ma, X.

Numerical simulation is carried out in this paper to calculate indoor air patterns, which include angles of inlet direction and induced ratios in a typical official room. According to the simulation...

Analysis of Cold Air Distribution System in an Office Building by the Numerical Simulation Method (2006)

Jian, Y., Li, D., Xu, H., Ma, X.

Numerical simulation is carried out in this paper to calculate indoor air patterns, which include angles of inlet direction and induced ratios in a typical official room. According to the simulation...

Peptide mediated formation of hierarchically organized solution and solid state polymer nanostructures (2005)

Nuhn, H., Vandermeulen, G.W.M., Rösler, A., Hamley, I.W., Castelletto, V., ...

Biologically-inspired peptide sequences have been explored as auxiliaries to mediate self-assembly of synthetic macromolecules into hierarchically organized solution and solid state nanostructures....

Structure and dynamics of self-assembled poly(ethylene glycol) based coiled-coil nano-objects (2005)

Vandermeulen, G.W.M., Hinderberger, D., Jeschke, G., Xu, H., Sheiko, S.S.

Herein we describe the structure and dynamics of self-assembled nano-objects generated from poly(ethylene glycol) based (PEG-ylated) coiled-coil hybrid block copolymers. Electron paramagnetic...

Absence of mouse Rec8 cohesin promotes synapsis of sister chromatids in meiosis (2005)

Xu, H., Beasley, M., Warren, W. D., McKay, M. J.

REC8 is a key component of the meiotic cohesin complex. During meiosis, cohesin is required for the establishment and maintenance of sister-chromatid cohesion, for the formation of the synaptonemal...

Absence of mouse Rec8 cohesin promotes synapsis of sister chromatids in meiosis (2005)

Xu, H., Beasley, M., Warren, W. D., McKay, M. J.

REC8 is a key component of the meiotic cohesin complex. During meiosis, cohesin is required for the establishment and maintenance of sister-chromatid cohesion, for the formation of the synaptonemal...

Interplay of initial deformation and Coulomb proximity on nuclear decay (2004)

Hudan, S., Alfaro, R., Beaulieu, L., Davin, B., Larochelle, Y., Lefort, T., ...

Alpha particles emitted from an excited projectile-like fragment (PLF*) formed in a peripheral collision of two intermediate-energy heavy ions exhibit a strong preference for emission towards the...

Searching oligo sets of human chromosome 12 using evolutionary strategies (2004)

Joe, Y. Y., Tay, A., Dong, Z. Y., Ng, H. H., Xu, H.

DNA Microarray is a powerful tool to measure the level of a mixed population of nucleic acids at one time, which has great impact in many aspects of life sciences research. In order to distinguish...

Coulomb proximity decay: A clock for measuring the particle emission time scale (2003)

Hudan, S., Botvina, A. S., Alfaro, R., Beaulieu, L., Davin, B., Larochelle, Y., ...

A new method to examine the time scale of particle emission from hot nuclei is explored. Excited projectile-like and target-like fragments decay as they separate following a peripheral heavy-ion...

Decoherence in a Josephson junction qubit (2003)

Berkley, A. J., Xu, H., Gubrud, M. A., Ramos, R. C., Anderson, J. R., Lobb, C. J., ...

The zero-voltage state of a Josephson junction biased with constant current consists of a set of metastable quantum energy levels. We probe the spacings of these levels by using microwave...

Fragment Production in Non-central Collisions of Intermediate Energy Heavy Ions (2002)

Davin, B., Alfaro, R., Xu, H., Beaulieu, L., Larochelle, Y., Lefort, T., ...

The defining characteristics of fragment emission resulting from the non-central collision of 114Cd ions with 92Mo target nuclei at E/A = 50 MeV are presented. Charge correlations and average...

High Resolution X-Ray Spectroscopic Constraints on Cooling Flow Models of Clusters of Galaxies and Gaseous Haloes Around Elliptical Galaxies (2002)

Kahn, S. M., Peterson, J. R., Paerels, F. B. S., Xu, H., Kaastra, J. S., Ferrigno, C., ...

In many clusters of galaxies, the cooling time at the core of the intracluster medium is much less than the age of the system, suggesting that the the gas should continually lose energy by radiation....

Similarity of fragment characteristics at mid-velocity for mid-peripheral and central collisions (2002)

Hudan, S., Alfaro, R., Davin, B., Larochelle, Y., Xu, H., Beaulieu, L., ...

The characteristics, in particular the isotopic composition (N/Z), of intermediate mass fragments (IMF : 3

A Wave-Based Wideband MIMO Channel Modeling Technique (2002)

H. Xu, H. Huang

ot pres erved , es pec i al l y or nonuni ormangul ar i t ri but i on at t he mobi l e[7] . I n t he cat eri ng mod el , exac t l ocat i ons of t he cat t erers are s i mul at ed bas ed on cert ai n...

The bis(maleonitriledithiolato)zincate(II) complex of the monoprotonated 4,4'-bipyridine cation (2002)

Xu, H., Xie, J. L., Chen, Y. C.

In the title salt, (C10H9N2)(2) [Zn(C4N2S2)(2)].C2H3N or [4,4'- bipyH][Zn(mnt)(2)].C2H3N, where mnt(2-) denotes maleonitriledithiolate and 4,4'-bipyH is monoprotonated 4,4'- bipyridine, the Zn-II ion...

Conserved disruptions in the predicted coiled-coil domains of eukaryotic SMC complexes: Implications for structure and function. (2002)

Beasley, M., Xu, H., Warren, W. D., McKay, M. J.

The structural maintenance of chromosome (SMC) proteins are required for a number of essential nuclear processes, including those of chromosome condensation, chromatid cohesion, and DNA repair....

Conserved disruptions in the predicted coiled-coil domains of eukaryotic SMC complexes: Implications for structure and function. (2002)

Beasley, M., Xu, H., Warren, W. D., McKay, M. J.

The structural maintenance of chromosome (SMC) proteins are required for a number of essential nuclear processes, including those of chromosome condensation, chromatid cohesion, and DNA repair....

Immunity to asexual blood stage malaria and vaccine approaches (2002)

Wipasa, J, Elliott, S, Xu, H, Good, MF

The development of a malaria vaccine seems to be a definite possibility despite the fact that even individuals with a life time of endemic exposure do not develop sterile immunity. An effective...

Influence of synthesis parameters on the formation of mesoporous SAPOs (2002)

Zhao, X. S., Lu, G. Q., Whittaker, A. K., Drennan, J., Xu, H.

The synthesis and characterization of high-quality mesoporous silicoaluminophosphates (SAPOs) with a hexagonally arranged pore structure and a good thermal stability are described. The influence of...

Interfaces of polydisperse fluids : surface tension and adsorption properties (2001)

Bellier-Castella, L., Xu, H., Baus, M.

We consider a system of spherical colloidal particles with a size polydispersity and use a simple van der Waals description in order to study the combined effect of both the polydispersity and the...

Combining quantum and classical density functional theory for ion-electron mixtures (2001)

Louis, A. A., Xu, H., Anta, J. A.

We combine techniques from quantum and from classical density functional theory (DFT) to describe electron-ion mixtures. For homogeneous systems, we show how to calculate ion-ion and ion-electron...

High Resolution Observations of the Elliptical Galaxy NGC 4636 with the Reflection Grating Spectrometer On-Board XMM-Newton (2001)

Xu, H., Kahn, S. M., Peterson, J. R., Behar, E., Paerels, F. B. S., Mushotzky, R. F., ...

We present the first high spectral resolution X-ray observation of the giant elliptical galaxy NGC 4636, obtained with the Reflection Grating Spectrometer on-board the XMM-Newton Observatory. The...

Fragment Isospin as a Probe of Heavy-Ion Collisions (2001)

Xu, H., Alfaro, R., Davin, B., Beaulieu, L., Larochelle, Y., Lefort, T., ...

Isotope ratios of fragments produced at mid-rapidity in peripheral and central collisions of 114Cd ions with 92Mo and 98Mo target nuclei at E/A = 50 MeV are compared. Neutron-rich isotopes are...

Three-phase fractionation of polydisperse fluids (2001)

Bellier-Castella, L., Baus, M., Xu, H.

It is shown that the van der Waals free-energy of polydisperse fluids, as introduced previously (L. Bellier-Castella, H. Xu and M. Baus, {J. Chem. Phys.} {113}, 8337 (2000)), predicts that for...

Finding The Sign Of A Function Value By Binary Cellular Automaton (2001)

Chau, H. F., Xu, H., Lee, K. M., Siu, L. W., Yan, K. K.

Given a continuous function $f(x)$, suppose that the sign of $f$ only has finitely many discontinuous points in the interval $[0,1]$. We show how to use a sequence of one dimensional deterministic...

Isotopic Scaling in Nuclear Reactions (2001)

Tsang, M. B., Friedman, W. A., Gelbke, C. K., Lynch, W. G., Verde, G., Xu, H.

A three parameter scaling relationship between isotopic distributions for elements with Z$\leq 8$ has been observed that allows a simple description of the dependence of such distributions on the...

Thermal ionization mass spectrometry U-series dating of a hominid site near Nanjing, China (2001)

Zhao, J. X., Hu, K., Collerson, K. D., Xu, H.

Mass spectrometric U-series dating of speleothems from Tangshan Cave, combined with ecological and paleoclimatic evidence, indicates that Nanjing Man, a typical Homo erectus morphologically...

Parity problem with a cellular automaton solution (2001)

Lee, KM, Xu, H, Chau, HF

The parity of a bit string of length N is a global quantity that can be efficiently computed using a global counter in O(N) time. But is it possible to find the parity using cellular automata with a...