Page No: 1-9
Resent Development on
the Micro Strip Patch Antennas by Increasing Bandwidth of Micro Strip Feeder
Fitchy Z Ezekiel1,
Winston Bunyan1 and Dennis M Jonah2
1Centre of Artificial Intelligence, University
of Mississippi, MS, USA
2School of Digital Information Processing, New
Jersey Institute of Technology, Newark, USA
Abstract: In this
paper we are comparing the resent development on the micro strip patch antennas
to increase their bandwidth by the different types of methods. First method is
a 60 GHz antenna built-up on a Silicon membrane with an upper BCB (Benzo
Cyclobuten dielectric) thin film deposit and excited with a U or T-shape micro
strip feeder via a dielectric gap. Second method is the compound techniques to
broaden the bandwidth of micro strip patch; a new type of stacked micro strip
patches antenna which increases the frequency bandwidth obviously is
investigated. Now the third one is an open circuited stub connected in shunt
with the micro strip feed line. To further enhance the bandwidth of the
antenna, an additional shunt stub and multiple shorting pins are incorporated.
The design of the aperture coupled antenna with shunt stubs and shorting pins
is described.
Keyword: Micro
Strip Feeder, Shunt Stub, Shorting Pins
Page No: 10-20
A Novel Wide Band
Design for Wideband Dual Frequency Application and Wireless Local Area Network
Zachary S Zephaniah
and Sid Lambun
Centre of Artificial
Intelligence, University of Mississippi, MS, USA
Abstract: A novel
wide-band design of a finite ground coplanar waveguide (CPW)-fed monopole
antenna is presented for simultaneously satisfying wireless local area network
(WLAN) and worldwide interoperability for Microwave Access applications. And
simple wideband dualfrequency design of a coplanar waveguide (CPW)-fed
triangular planar monopole antenna is proposed.. Both theoretical and
experimental results of bandwidths and radiation characteristics for prototypes
of the proposed antenna have been presented. The measured −10 dB impedance
bandwidth at the lower band (1.71 GHz) is about 240 MHz and that at the upper
band (5.62 GHz) reaches about 2 GHz, which cover the DCS1800 and the IEEE
802.11 WLAN standards, respectively. Good monopole-like radiation patterns with
antenna gains of 2.3–3.6 dBi and 3.9– 5.6 dBi over the lower and upper bands,
respectively, have also been obtained.
Keyword: Monopole
Antenna, Wideband, Dual Frequency, Coplanar Waveguide
Page No: 21-28
Event Driven Real Time
Business Intelligence Using Active Data Warehouse and Data Integration
Fan Wei1,
Duankang Xue1 and Qiao Xu2
1Mechanical and Electrical Overall Design
Dept., Beijing Institute of Technology, Beijing, China
2School of Navigation Engineering, Naval
University of Engineering, Wuhan, China
Abstract: In today’s
competitive environment with high consumer expectation, it is decisions that
are based on the most current data available that will improve customer
relationships, increase revenue, and maximize operational efficiencies. The
speed of today’s processing systems has moved classical data warehousing into
the realm of real time. The result is real-time business intelligence. Business
transactions are fed as they occur to a real-time business-intelligence system
that maintains the current state of the enterprise. The RTBI system not only
supports the classical strategic functions of data warehousing for deriving
information and knowledge from past enterprise activity, but it also provides
real-time tactical support to drive enterprise actions that react to immediate
events. As such, it replaces both the classical data warehouse and the
enterprise application integration (EAI) functions. Real-time business
intelligence is also known as event-driven business intelligence. In order to
react in real time, a business intelligence system must react to events as they
occur– not minutes or hours later. This paper introduces an approach to
implement real-time business intelligence using dynamic warehouse.
Keyword: Business
Intelligence, Active Data Warehouse, ETL Process, Data Integration
Page No: 29-35
Research on Peak-to-Average
Power Ratio Reduction Using New Companding Algorithm for Orthogonal Frequency
Division Multiplexing Signals Processing
Li Wang
School of Communication
and Electronic, Jiangxi Science and Technology Normal University, Nanchang,
China
Abstract: One of
the challenging issues for Orthogonal Frequency Division Multiplexing (OFDM)
system is its high Peak-to-Average Power Ratio (PAPR). It is a major drawback
of orthogonal frequency division multiplexing (OFDM) systems. Among the various
PAPR reduction techniques, companding transform appears attractive for its
simplicity and effectiveness. This paper gives a new approach to PAPR reduction
in OFDM using new companding algorithm. Compared with the others, the proposed
algorithm offers an improved bit error rate and minimized out-of-band
interference while reducing PAPR effectively. Theoretical analysis and
numerical simulation are presented.
Keyword: Companding,
OFDM, PAPR Effectively, Signal Processing
Page No: 36-44
Management on the
Resources of Service Provider under Cloud Computing Environment by Virtual
Machine and Round Robin Algorithm
Xaviera Mohurimon W,
Shrivaly A Eleanor
Department of
Network Engineering, University of Nigeria Nsukka, Enugu State, Nigeria
Abstract: Cloud
computing is known as digital service delivery over the Internet by several
applications which are carried out by computer systems in distributed
datacenters. It supplies a high performance computing facilities which allow shared
computation and storage over long distances. To properly manage the resources
of the service provider we require balancing the load of the jobs that are
submitted to the service provider. Load balancing is required as we don’t want
one centralized server’s performance to be degraded. In this paper, we present
Round Robin Algorithm for efficient load balancing in cloud environment.
Keyword: Cloud
Computing, Load Balancing, Virtual Machine, Round Robin Algorithm
Page No: 45-49
PIE-variant Images Applied
in Face Recognition with Illumination and Expression Variations Using SIFT
Features
Weihua Huang and
Dong Lin
School of
Electronics and Information Engineering, Changchun University of Science and
Technology, Changchun, China
Abstract: Prior
research has shown that under the illumination controlled and user cooperative
conditions, nearly all of face recognition method perform very well, but when
it comes to the variant illumination, pose and expression (PIE) conditions, the
performance of these methods degrade seriously. Face recognition in variant PIE
conditions is one of the most challenging problem in this field. In this paper,
a method based on SIFT features is used to research on face recognition in
variable PIE conditions. Three professional PIE-variable face database are used
to experiment the performance of SIFT method. The experiment results show the
huge potential of SIFT method in application to face recognition in variable
PIE conditions.
Keyword: PIE Conditions,
Face Recognition, Sift Feature, Matching
Page No: 50-58
Knowledge Active Push
System Optimization and the Multi-dimensional Knowledge Management Based on Amnestic
Vector Model
Zhenghua Li1,
Qun Zheng1 and Meng Yu2
1School of Mechanical Engineering, Beijing
Institute of Technology, Beijing, China
2School of Information Engineering, North
China Electric Power University, Baoding, China
Abstract: A
knowledge push framework based on analysis of the behavior, task and role of a
designer was proposed, providing excellent ways for solving the problems of low
accuracy, complicated operation, low efficiency and difficulty in acquiring
knowledge through retrieval. A knowledge active push system was realized
through forgotten attenuation, similarity filtering and other key methods,
playing a good supporting role to designers and greatly reducing the time
required for designing.
Keyword: Knowledge
Management; Knowledge Push; Forgotten Attribute; Knowledge Engineering; Similar
Filter
Page No: 59-65
Analysis of Shielding
Effectiveness of Metal Layer in the Time Varying Change Magnetic Field for Undersea
Contactless Power Transmission System
Hui Wang
School of Energy
and Power Engineering, Lanzhou University of Technology, Lanzhou, China
Abstract: A
contactless power transmission system work based on high-frequency electromagnetic
induction, companying amount of leakage magnetic flux spread outside the
coupling structure and inducing power loss in the metal shell. It is necessary
to design shielding mechanism to weaken the influence of leakage magnetic flux.
This paper analyzed the shielding effectiveness of metal layer in the
time-varying change magnetic field, and revealed the shielding function of a
thin copper sheet between cores and shells. By using FEM simulation,
distributions of magnetic intensity and eddy current density were imaged and
compared to demonstrate the shielding effectiveness. Finally, a prototype of
coupling structure with shielding sheets was proposed and tested. The testing
results proved the significant affection of shielding sheet on improving the
system’s transferring ability.
Keyword: Contactless
Power Transmission, Shielding Analysis, FEM Simulation
Page No: 66-71
Designing and Optimizing
of a New Algorithm for the Wallace Tree Multiplier Based on Carry Look Ahead
Adder
Cherylly Nathaniei and
Conositance M Maltzo
School of Electronic
Engineering, Jomo Kenyatta University of Agriculture and Technology, Nairobi,
Kenya
Abstract: This
paper deals with design and synthesis of 8x8 Wallace Tree Multiplier. Multipliers
form the heart of DSP operation and determine the performance of
general-purpose microprocessors and other devices where multipliers are highly
involved. However, addition is a fundamental operation of multiplier and the
question is how the addition operation is performed in order to improve the
speed of the multiplier. The paper proposed a new algorithm for Wallace tree
multiplier as it is an efficient hardware implementation of a circuit that
multiplies two integers. It consists of three stages: In the first stage, the
partial product matrix is generated, and in the second stage, the partial
product matrix is reduced to a height of two through taking any three wires
with the same weights and input them into a full adder in the final stage,
these two rows are combined using a carry look ahead adder. But, if there are
two wires of the same weight left, input them into a half adder or if there is
just one wire left, connect it to the next layer. The work resulted in
reduction of a number of adders, which in turn resulted in reduction of delay
(logic gate delay & route delay).
Keyword: Multiplier,
Multiplicand, Wallace Tree, Carry Look Ahead Adder