Klein-Nishina effects on the high-energy afterglow emission of gamma-ray bursts (2009)
Wang, Xiang-Yu, He, Hao-Ning, Li, Zhuo, Wu, Xue-Feng, Dai, Zi-Gao
Extended high-energy(>100MeV) gamma-ray emission that lasts much longer than the prompt sub-MeV emission has been detected from quite a few gamma-ray bursts (GRBs) by Fermi Large Area Telescope (LAT)...
Universal architecture of bacterial chemoreceptor arrays (2009)
Briegel, Ariane, Ortega, David R., Tocheva, Elitza I., Wuichet, Kristin, Li, Zhuo, Chen, Songye, ...
Chemoreceptors are key components of the high-performance signal transduction system that controls bacterial chemotaxis. Chemoreceptors are typically localized in a cluster at the cell pole, where...
Progress on Problem about Quantum Hamming Bound for Impure Quantum Codes (2009)
A famous open problem in the theory of quantum error-correcting codes is whether or not the parameters of an impure quantum code can violate the quantum Hamming bound for pure quantum codes. We...
No More Perfect Codes: Classification of Perfect Quantum Codes (2009)
We solve the problem of the classification of perfect quantum codes. We prove that the only nontrivial perfect quantum codes are those with the parameters . There exist no other nontrivial perfect...
Bio-based composites that mimic the plant cell wall (2009)
Nature creates high performance materials under modest conditions, i.e., neutral pH and ambient temperature and pressure. One of the most significant materials is the plant cell wall. The plant cell...
Bio-based composites that mimic the plant cell wall (2009)
Nature creates high performance materials under modest conditions, i.e., neutral pH and ambient temperature and pressure. One of the most significant materials is the plant cell wall. The plant cell...
Electron cryotomography: a new view into microbial ultrastructure (2009)
Electron cryotomography (ECT) is an emerging technology that allows thin samples such as small bacterial cells to be imaged in 3D in a nearly native state to ‘molecular’ (not, vert, similar4 nm)...
GRB 080916C: on the radiation origin of the prompt emission from KeV/MeV to GeV (2009)
Wang, Xiang-Yu, Li, Zhuo, Dai, Zi-Gao, Meszaros, Peter
Fermi observations of high-energy gamma-ray emission from GRB 080916C shows that its spectrum is consistent with the Band function from MeV to tens of GeV. Assuming one single emission mechanism...
Universal Framework for Quantum Error-Correcting Codes (2009)
We present a universal framework for quantum error-correcting codes, i.e., the one that applies for the most general quantum error-correcting codes. This framework is established on the group...
A family of asymptotically good quantum codes based on code concatenation (2008)
Li, Zhuo, Xing, Li-Juan, Wang, Xin-Mei
We explicitly construct an infinite family of asymptotically good concatenated quantum stabilizer codes where the outer code uses CSS-type quantum Reed-Solomon code and the inner code uses a set of...
RUMBLE: An Incremental, Timing-driven, Physical-synthesis Optimization Algorithm (2008)
David A. Papa, Tao Luo, Michael D. Moffitt, C. N. Sze, Zhuo Li, Gi-joon Nam, ...
Physical synthesis tools are responsible for achieving timing closure. Starting with 130nm designs, multiple cycles are required to cross the chip, making latch placement critical to success. We...
Quantum generalized Reed-Solomon codes: Unified framework for quantum MDS codes (2008)
Li, Zhuo, Xing, Li-Juan, Wang, Xin-Mei
We construct a new family of quantum MDS codes from classical generalized Reed-Solomon codes and derive the necessary and sufficient condition under which these quantum codes exist. We also give code...
Orders of Finite Reductive Monoids (2008)
Li, Zhuo, Li, Zhenheng, Cao, You'an
We show four formulas for calculating the orders of finite reductive monoids with zero. As applications, these formulas are then used to calculate the orders of finite reductive monoids induced from...
Representations of the Renner Monoid (2008)
Li, Zhuo, Li, Zhenheng, Cao, You'an
We describe irreducible representations and character formulas of the Renner monoids for reductive monoids, which generalizes the Munn-Solomon representation theory of rook monoids to any Renner...
Ying Zhou, Zhuo Li, Yuxin Tian, Weiping Shi
Abstract — Even with the wide adaptation of resolution enhancement techniques in sub-wavelength lithography, the geometry of the fabricated interconnect is still quite different from the drawn one....
Ouyang, Zhuqing, Li, Zhuo, Zhang, Xujia
We have previously shown that vacuolar H+-ATPase subcomplex V_o from mung bean contains subunit d, however, its sequence and function were unknown. In the present study, we report the cloning and...
The gamma-rays from gamma-ray bursts (GRBs) are believed to be produced by internal shocks driven by small timescale, ~1 ms, variation in the GRB outflows, and a pair-production spectral cutoff is...
Wang, Xiang-Yu, Li, Zhuo, Waxman, Eli, Meszaros, Peter
We suggest that non-thermal emission can be produced by multiple scatterings of the photons between the supernova ejecta and pre-shock material in supernova shock breakout. Such bulk-Comptonization...
Ying Zhou, Zhuo Li, Yuxin Tian, Weiping Shi
Abstract — Due to photo-lithography effects and manufacture process variations, the actual features fabricated on the wafer are different from the designed ones. This difference caused significant...
Probabilistic congestion prediction with partial blockages (2008)
Zhuo Li, Charles J. Alpert, Stephen T. Quay, Sachin Sapatnekar, Weiping Shi
Abstract — Fast and accurate routing congestion estimation is essential for optimizations such as floorplanning, placement, buffering, and physical synthesis that need to avoid routing congestion....
EeV neutrinos associated with UHECR sources (2007)
Electromagnetic energy losses of charged pions and muons suppress the expected high energy, >1E18 eV, neutrino emission from sources of ultrahigh energy, >1E19 eV, cosmic-rays. We show here that...
Prompt optical emission from residual collisions in GRB outflows (2007)
The prompt gamma-ray emission in gamma-ray bursts is believed to be produced by internal shocks within a relativistic unsteady outflow. The recent detection of prompt optical emission accompanying...
Non-Thermal X-ray Properties of Rotation Powered Pulsars and Their Wind Nebulae (2007)
Li, Xiang-Hua, Lu, Fang-Jun, Li, Zhuo
We present a statistical study of the non-thermal X-ray emission of 27 young rotation powered pulsars (RPPs) and 24 pulsar wind nebulae (PWNe) by using the Chandra and the XMM-Newton observations,...
Myxococcus xanthus Dif proteins are chemotaxis homologues that regulate exopolysaccharide (EPS) biogenesis. Previous genetic studies suggested that Dif protein might interact with one another as do...
Myxococcus xanthus Dif proteins are chemotaxis homologues that regulate exopolysaccharide (EPS) biogenesis. Previous genetic studies suggested that Dif protein might interact with one another as do...
Photon Acceleration at Shock Breakout of Trans-Relativistic Supernova (2007)
Li, Zhuo, Wang, Xiang-Yu, Waxman, Eli, Meszaros, Peter
The predicted thermal flash from SN shock breakout might have been detected for the first time by Swift in GRB 060218/SN 2006aj. The detected thermal X-ray emission in this event implies emergence of...
High-Energy Gamma-Rays from GRB X-ray Flares (2007)
Wang, Xiang-Yu, Li, Zhuo, Meszaros, Peter
The recent detection of X-ray flares during the afterglow phase of gamma-ray bursts (GRBs) suggests an inner-engine origin, at radii inside the forward shock. There must be inverse Compton (IC)...
Myxococcus xanthus Dif proteins are chemotaxis homologues that regulate exopolysaccharide (EPS) biogenesis. Previous genetic studies suggested that Dif protein might interact with one another as do...
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 2007.
Nonthermal gamma-ray and X-ray flashes from shock breakout in gamma-ray bursts/supernovae (2006)
Wang, Xiang-Yu, Li, Zhuo, Waxman, Eli, Meszaros, Peter
Thermal X-ray emission which is simultaneous with the prompt gamma-rays has been detected for the first time from a supernova connected with a gamma-ray burst (GRB), namely GRB060218/SN2006aj. It has...
The upstream magnetic field of GRB shocks (2006)
Gamma-ray burst (GRB) afterglow emission is believed to be produced by synchrotron emission of electrons accelerated to high energy by a relativistic collisionless shock propagating into a weakly...
GeV-TeV and X-ray flares from gamma-ray bursts (2006)
Wang, Xiang-Yu, Li, Zhuo, Meszaros, Peter
The recent detection of delayed X-ray flares during the afterglow phase of gamma-ray bursts (GRBs) suggests an inner-engine origin, at radii inside the deceleration radius characterizing the...
Fast algorithms for slew constrained minimum cost buffering (2006)
Shiyan Hu, Charles J. Alpert, Jiang Hu, Shrirang Kar, Zhuo Li, Weiping Shi, ...
Abstract — As a prevalent constraint, sharp slew rate is often required in circuit design which causes a huge demand for buffering resources. This problem requires ultra-fast buffering techniques...
An O(bn^2) Time Algorithm for Optimal Buffer Insertion with b Buffer Types (2005)
Buffer insertion is a popular technique to reduce the interconnect delay. The classic buffer insertion algorithm of van Ginneken has time complexity O(n^2), where n is the number of buffer positions....
An O(bn^2) Time Algorithm for Optimal Buffer Insertion with b Buffer Types (2005)
Buffer insertion is a popular technique to reduce the interconnect delay. The classic buffer insertion algorithm of van Ginneken has time complexity O(n^2), where n is the number of buffer positions....
Making fast buffer insertion even faster via approximation techniques (2005)
Zhuo Li, C. N. Sze, Charles J. Alpert, Jiang Hu, Weiping Shi
are requiring buffers to be inserted on interconnects of even moderate length for both critical paths and fixing electrical violations. Consequently, buffer insertion is needed on tens of thousands...
Approved by: FAST INTERCONNECT OPTIMIZATION (2005)
As the continuous trend of Very Large Scale Integration (VLSI) circuits technol-ogy scaling and frequency increases, delay optimization techniques for interconnect are increasingly important for...
An O(bn 2 ) time algorithm for optimal buffer insertion with b buffer types (2005)
Buffer insertion is a popular technique to reduce the interconnect delay. The classic buffer insertion algorithm of van Ginneken has time complexity O(n 2), where n is the number of buffer positions....
Late-Time Radio Re-Brightening of Gamma-Ray Burst Afterglows: Evidence for Double-Sided Jets (2004)
The central engine of gamma-ray bursts (GRBs) is believed to eject double-sided ultra-relativistic jets. For an observed GRB, one of the twin jets should point toward us, and is responsible for the...
Prompt Ultraviolet-to-Soft-X-Ray Emission of Gamma-Ray Bursts: Application to GRB 031203? (2004)
We discuss the prompt emission of GRBs, allowing for $\gamma\gamma$ pair production and synchrotron self-absorption. The observed hard spectra suggest heavy pair-loading in GRBs. The re-emission of...
Münster (Westfalen), Univ., Diss., 2004.
Longest path selection for delay test under process variation (2004)
Xiang Lu, Zhuo Li, Wangqi Qiu, Weiping Shi
Abstract—Under manufacturing process variation, a path through a net is called longest if there exists a process condition under which the path has the maximum delay among all paths through the...
Xiang Lu, Zhuo Li, Wangqi Qiu, Weiping Shi
Previous researchers in logic testing focused on shorts in MOS gate oxides that have zero-resistance. However, most shorts are resistive and may cause delay faults. In this paper, we propose a simple...
PARADE: parametric delay evaluation under process variation [IC modeling (2004)
Xiang Lu, Zhuo Li, Wangqi Qiu, Weiping Shi
Under manufacturing process variation, the circuit delay varies with process parameters. For delay test and timing verification under process variation, it is necessary to model the variational delay...
Longest path selection for delay test under process variation (2004)
Xiang Lu, Zhuo Li, Wangqi Qiu, Weiping Shi
Abstract- Under manufacturing process variation, a path through a fault site is called longest for delay test if there exists a process condition under which the path has the maximum delay among all...
At-Speed Test for Path Delay Faults Using Practical Techniques (2004)
Wangqi Qiu, Jing Wang, Xiang Lu, Zhuo Li, Weiping Shi
To detect the smallest delay faults at a fault site, the longest path(s) through it must be tested at full speed. Most existing test generation tools are either inefficient in automatically...
Complexity analysis and speedup techniques for optimal buffer insertion with minimum cost (2004)
Weiping Shi, Zhuo Li, Charles J. Alpert
Abstract- As gate delays decrease faster than wire delays for each technology generation, buffer insertion becomes a popular method to reduce the interconnect delay. Several modern buffer insertion...
X-ray afterglows of gamma-ray bursts in the synchrotron self-Compton dominated regime (2003)
We consider in this paper the effect of synchrotron self-Compton process on X-ray afterglows of gamma-ray bursts. We find that for a wide range of parameter values, especially for the standard values...
Pair loading in Gamma-Ray Burst Fireball And Prompt Emission From Pair-Rich Reverse Shock (2003)
Li, Zhuo, Dai, Z. G., Lu, T., Song, L. M.
Gamma-ray bursts (GRBs) are believed to originate from ultra-relativistic winds/fireballs to avoid the "compactness problem". However, the most energetic photons in GRBs may still suffer from...
Temporal variability in early afterglows of short gamma-ray bursts (2003)
The shock model has successfully explained the observed behaviors of afterglows from long gamma-ray bursts (GRBs). Here we use it to investigate the so-called early afterglows from short GRBs, which...
CodSim: A combined delay fault simulator (2003)
Wangqi Qiu, Xiang Lu, Zhuo Li, Weiping Shi
Delay faults are an increasingly important test challenge. Traditional delay fault models are incomplete in that they only model a subset of delay defect behaviors. To solve this problem a combined...
Overall Temporal Synchrotron Emissions from Relativistic Jets: Adiabatic and Radiative Breaks (2001)
We discuss the GRB afterglow emission from a relativistic jet that is initially in the radiative regime in which the accelerated electrons are fast cooling. We note that such a ``semiradiative'' jet...
Generation of a novel A kinase anchor protein and a MARCKS-like analog from a single gene / (1999)
Advisor: Charles S. Rubin
Written for the Dept. of Food Science and Agricultural Chemistry, Macdonald College.
Bipyramidal crystalline, spheroidal crystalline and amorphous proteins were prepared from following four seeds: white kidney, navy (Phaseolus vulgaris) beans; baby lima, large lima (Phaseolus...
Bipyramidal crystalline, spheroidal crystalline and amorphous proteins were prepared from following four seeds: white kidney, navy (Phaseolus vulgaris) beans; baby lima, large lima (Phaseolus...
Wang, Youchun, Zhang, Huayuan, Li, Zhuo, Gu, Wenjie, Lan, Haiyuan, Hao, Wa, ...
We reported previously on the complete sequence of hepatitis E virus (HEV) genotype 4, isolated from patients with sporadic cases of acute HEV infection in China. At least eight HEV genotypes have...
Wang, Youchun, Zhang, Huayuan, Li, Zhuo, Gu, Wenjie, Lan, Haiyuan, Hao, Wa, ...
We reported previously on the complete sequence of hepatitis E virus (HEV) genotype 4, isolated from patients with sporadic cases of acute HEV infection in China. At least eight HEV genotypes have...
Li, Zhuo, Lu, Shuhong, Hou, Guihua, Ma, Xiaoqing, Sheng, Duohong, Ni, Jinfeng, ...
Hjm and Hel308a are novel, RecQ-like DNA helicases recently identified in the euryarchaeotes Pyrococcus furiosus and Methanothermobacter thermautotrophicus, respectively. In this study, an Hjm/Hel308...
The structure of FtsZ filaments in vivo suggests a force-generating role in cell division
Li, Zhuo, Trimble, Michael J, Brun, Yves V, Jensen, Grant J
In prokaryotes, FtsZ (the filamentous temperature sensitive protein Z) is a nearly ubiquitous GTPase that localizes in a ring at the leading edge of constricting plasma membranes during cell...
PLK1 Down-Regulates Parainfluenza Virus 5 Gene Expression
Sun, Dengyun, Luthra, Priya, Li, Zhuo, He, Biao
The paramyxoviruses are a family of negative-sense RNA viruses that includes many important human and animal pathogens. Paramyxovirus RNA synthesis requires the viral phosphoprotein (P) and the large...