Xiaoming Zhou, Advisor Dr, John S. Baras, Cshcn Phd, Isr Phd
Satellites are now being used to carry Internet traffic which brings new opportunities as well as new challenges to the satellite industry. Our goal in this dissertation is to design efficient and...
Design Arbitrary Shaped 2D Acoustic Cloak without Singularity (2009)
Hu, Jin, Zhou, Xiaoming, Hu, Gengkai
A method is proposed to design arbitrary shaped two dimensional (2D) isotropic-inertia acoustic cloaks without singularity. The method is based on the deformation view of the transformation method,...
Nonsingular two dimensional cloak of arbitrary shape (2009)
Hu, Jin, Zhou, Xiaoming, Hu, Gengkai
We propose a general method to circumvent the singularity of arbitrary 2D cloaks, which arises from infinitely large values of material parameters at inner boundaries. The presented method is based...
Calculation of material properties for arbitrary shape transformation media (2008)
Hu, Jin, Zhou, Xiaoming, Hu, Gengkai
We propose a general method to evaluate the material parameters for arbitrary shape transformation media. By solving the original coordinates in the transformed region via Laplace's equations, we can...
Design Method for Electromagnetic Cloak with Arbitrary Shapes Based on Laplace's Equation (2008)
Hu, Jin, Zhou, Xiaoming, Hu, Gengkai
In transformation optics, the space transformation is viewed as the deformation of a material. The permittivity and permeability tensors in the transformed space are found to correlate with the...
Hopcount and E2E Delay: IPv6 Versus IPv4 (2008)
Xiaoming Zhou, Piet Van Mieghem
Abstract. IPv6 provides an expanded address space to satisfy the future Internet requirements. In this paper we compare and analyze onemonth measurements of the end-to-end IPv6 delay and hopcount...
Implications for QoS provisioning based on traceroute (2008)
Milena Janic, O Kuipers, Xiaoming Zhou, Piet Van Mieghem
measurements
Mieghem P. Implications for QoS provisioning based on traceroute measurements (2008)
Milena Janic, O Kuipers, Xiaoming Zhou, Piet Van Mieghem
Abstract. Based on RIPE NCC traceroute measurement data, we attempt to model the Internet graph with the graph G 1, which is the union of the most frequently occurring paths in the RIPE traceroute...
Fibronectin fibrillogenesis regulates three-dimensional neovessel formation (2008)
Zhou, Xiaoming, Rowe, R. Grant, Hiraoka, Nobuaki, George, Jerry P., Wirtz, Denis, Mosher, Deane F., ...
During vasculogenesis and angiogenesis, endothelial cell responses to growth factors are modulated by the compositional and mechanical properties of a surrounding three-dimensional (3D) extracellular...
Congestion Management and Medium Access Control in Satellite Data Networks (2005)
Satellites are now being used to carry Internet traffic which brings new opportunities as well as new challenges to the satellite industry. Our goal in this dissertation is to design effcient and...
Interactive Data Services in Wireless Access Networks: Capacity Planning and Protocols (2005)
Zhou, Xiaoming, Raissi-Dehkordi, Majid, Baras, John S.
In this paper, we study the capacity planning in wireless access network for interactive data services such as web browsing. A closed queuing model has been developed which can capture the bottleneck...
Congestion Management and Medium Access Control in Satellite Data Networks (2005)
Satellites are now being used to carry Internet traffic which brings new opportunities as well as new challenges to the satellite industry. Our goal in this dissertation is to design effcient and...
Interactive Data Services in Wireless Access Networks: Capacity Planning and Protocols (2005)
Zhou, Xiaoming, Raissi-Dehkordi, Majid, Baras, John S.
In this paper, we study the capacity planning in wireless access network for interactive data services such as web browsing. A closed queuing model has been developed which can capture the bottleneck...
A case for lightweight superpeer topologies (2005)
Michael Kleis, Xiaoming Zhou, Eng Keong Lua
Abstract: The usage of SuperPeers has been proposed to improve the performance of both Structured and Unstructured Peer-to-Peer (P2P) networks. In this paper we explore a network-aware class of...
A case for lightweight superpeer topologies (2005)
Michael Kleis, Xiaoming Zhou, Eng Keong Lua
Abstract: The usage of SuperPeers has been proposed to improve the performance of both Structured and Unstructured Peer-to-Peer (P2P) networks. In this paper we explore a network-aware class of...
Congestion management and medium access control in satellite data networks (2004)
Satellites are now being used to carry Internet traffic which brings new opportunities as well as new challenges to the satellite industry. Our goal in this dissertation is to design efficient and...
Congestion management and medium access control in satellite data networks (2004)
Satellites are now being used to carry Internet traffic which brings new opportunities as well as new challenges to the satellite industry. Our goal in this dissertation is to design efficient and...
Web access over a multiple access channel: evaluations and improvements (2004)
Zhou, Xiaoming, Liu, N., Baras, John S.
We evaluate web browsing performance over a multiple access satellite channel for three different MAC layer protocols. A web user behavior model is used to generate realistic source traffic. A new...
A multichannel random access protocol for multislot short messages with delay constraints (2004)
Zhou, Xiaoming, Baras, John S.
A multichannel random access protocol called FMCSA for multislot short messages is proposed in this paper to be used in access networks with large propagation delay. This protocol combines random...
Thesis research directed by: Electrical Engineering.
Congestion management and medium access control in satellite data networks (2004)
Thesis (Ph. D.) -- University of Maryland, College Park, 2004.
Web access over a multiple access channel: evaluations and improvements (2004)
Zhou, Xiaoming, Liu, N., Baras, John S.
We evaluate web browsing performance over a multiple access satellite channel for three different MAC layer protocols. A web user behavior model is used to generate realistic source traffic. A new...
A multichannel random access protocol for multislot short messages with delay constraints (2004)
Zhou, Xiaoming, Baras, John S.
A multichannel random access protocol called FMCSA for multislot short messages is proposed in this paper to be used in access networks with large propagation delay. This protocol combines random...
Reordering of IP packets in Internet (2004)
Xiaoming Zhou, Piet Van Mieghem
Abstract. We have analyzed the measurements of the end-to-end packet reordering by tracing UDP packets between 12 testboxes of RIPE NCC. We showed that reordering quite often happens in Internet. For...
A Placement Scheme for Peer-to-Peer Networks based on Principles from Geometry (2004)
Michael Kleis, X. Zhou, Xiaoming Zhou
Crucial for the performance of Peer-to-Peer networks based on geometric topologies is the measurement complexity and quality of the mapping function used to map a node in the network to a point in...
Congestion management in access networks with long propagation delay (2003)
Zhou, Xiaoming, Baras, John S.
Satellite networks are going to play an important role in the global information infrastructure. Satellites can be used to provide Internet services to fixed users and to mobile users. However,...
Congestion management in access networks with long propagation delay (2003)
Zhou, Xiaoming, Baras, John S.
Satellite networks are going to play an important role in the global information infrastructure. Satellites can be used to provide Internet services to fixed users and to mobile users. However,...
TCP over Satellite Hybrid Networks: A Survey (2002)
Zhou, Xiaoming, Baras, John S.
Satellite is going to play an important role in the global information infrastructure. Satellite canprovide direct to home Internet service (i.e. DirecPC from Hughes Network System) and it can...
Flow Control at Satellite Gateways (2002)
Zhou, Xiaoming, Liu, Xicheng, Baras, John S.
Abstract-- Broadcast satellite networks are going play an important role in the global information infrastructure. Several systems including DirecWayfrom Hughes Network System use satellites to...
TCP over Satellite Hybrid Networks: A Survey (2002)
Zhou, Xiaoming, Baras, John S.
Satellite is going to play an important role in the global information infrastructure. Satellite canprovide direct to home Internet service (i.e. DirecPC from Hughes Network System) and it can...
Flow Control at Satellite Gateways (2002)
Zhou, Xiaoming, Liu, Xicheng, Baras, John S.
Abstract-- Broadcast satellite networks are going play an important role in the global information infrastructure. Several systems including DirecWayfrom Hughes Network System use satellites to...
Modeling Students' Emotions from Cognitive Appraisal in Educational Games (2002)
Cristina Conati, Xiaoming Zhou
We present a probabilistic model that assesses student emotional reaction during interaction with an educational game. Following a well-known cognitive theory of emotions (the OCC theory), the model...
Modeling students’ emotions from cognitive appraisal in educational games (2002)
Cristina Conati, Xiaoming Zhou
We present a probabilistic model that assesses student emotional reaction during interaction with an educational game. Following a well-known cognitive theory of emotions (the OCC theory), the model...
Zhou, Xiaoming, Zhao, Aiping, Goping, Gertrud, Hirszel, Przemyslaw
Renal failure associated with aspergillosis is caused by pathogenic fungi. Gliotoxin is a toxic epipolythiodioxopiperazine metabolite produced by the pathogens. The present study investigated the...
"... in partial fulfillment of the requirements for the degree of Master of Science in the Division of Medicinal Chemistry and Natural Products, School of Pharmacy."
Typescript.
On the decomposition map of Grothendieck groups /--by Xiaoming Zhou. (1991)
Thesis (Ph. D.)--University of Minnesota, 1991.
Zhou, Xiaoming, Merzenich, Michael M.
The spectral, temporal, and intensive selectivity of neurons in the adult primary auditory cortex (A1) is easily degraded in early postnatal life by raising rat pups in the presence of pulsed noise....
Zhou, Xiaoming, Merzenich, Michael M.
Studies have shown that acoustic experiences significantly contribute to the functional shaping of the structural organization and signal processing capacities of the mammalian auditory system during...
Zhou, Xiaoming, Ferraris, Joan D., Dmitrieva, Natalia I., Liu, Yusen, Burg, Maurice B.
High NaCl rapidly activates p38 MAPK by phosphorylating it, the phosphorylation presumably being regulated by a balance of kinases and phosphatases. Kinases are known, but the phosphatases are...
Fibronectin fibrillogenesis regulates three-dimensional neovessel formation
Zhou, Xiaoming, Rowe, R. Grant, Hiraoka, Nobuaki, George, Jerry P., Wirtz, Denis, Mosher, Deane F., ...
During vasculogenesis and angiogenesis, endothelial cell responses to growth factors are modulated by the compositional and mechanical properties of a surrounding three-dimensional (3D) extracellular...
Essential function of TORC2 in PKC and Akt turn motif phosphorylation, maturation and signalling
Ikenoue, Tsuneo, Inoki, Ken, Yang, Qian, Zhou, Xiaoming, Guan, Kun-Liang
Protein kinase C (PKC) is involved in a wide array of cellular processes such as cell proliferation, differentiation and apoptosis. Phosphorylation of both turn motif (TM) and hydrophobic motif (HM)...