Cloud computing is worthy of consideration and try to build business systems as a
way for businesses in this way can undoubtedly bring about lower costs, higher profits and
more choice; for large scale industry, Data security has become the most important issue of
cloud computing security. Though many solutions have been proposed, many of them only
consider one side of security; this paper proposes the cloud data security must be considered to
analyse the data security risk, the data security requirements, deployment of security functions
and the data security process through encryption. Distribution of file is done on cloud servers
with token generation. The security architecture of the system is designed by using
encryption/decryption algorithm, which eliminates the fraud that occurs today with stolen data.
There is no danger of any data sent within the system being intercepted, and replaced. The
system with encryption is acceptably secure, but that the level of encryption has to be stepped
up, as computing power increases. Results in order to be secured the system the
communication between modules is encrypted. Since the customer does not have control over
data the cloud provider should assure the customer that data is not modified. In this paper a
data correctness scheme is proposed in which a Cloud service Provider assures the user that
the data stored in the cloud is safe. This scheme also achieves the integration of storage
correctness insurance and data error localization i.e., the identification of misbehaving
Aniket V. Kulkarni, Prathamesh S. Kharche , Vivek V. Sonawane
In the present technological revolution power is very precious. So we need to find
out the causes of power loss and improve the power system. Due to industrialization the use of
inductive load increases and hence power system losses its efficiency. So we need to improve
the power factor with a suitable method. Automatic power factor correction device reads
power factor from line voltage and line current by determining the delay in the arrival of the
current signal with respect to voltage signal from the function generator with high accuracy by
using an internal timer. This time values are then calibrated as phase angle and corresponding
power factor. Then the microcontroller calculates the compensation requirement and
accordingly switches on different capacitor banks. Automatic power factor correction
techniques can be applied to the industries, power systems and also house-holds to make them
stable and due to that the system becomes stable and efficiency of the system.
The online transaction is now becoming a trend in Indian market to interact with its
customers for any business solutions. As per recent surveys users doing online transactions are
growing daily. It has become back bone of ﬁnancial institution’s multichannel strategy.
Information about ﬁnancial institutions, their customers, and their transactions is extremely
sensitive which is at higher risk in today’s vulnerable technical world. It has been observed
that such business done via a public network costs new challenges for security and
trustworthiness. Any online transaction system must solve the issues of authentication,
conﬁdentiality, integrity, and nonrepudiation, which means it must ensure that only qualiﬁed
people can access a transaction gateway, that the information viewed remains private and can’t
be modiﬁed by third parties, and that any transactions made are traceable and veriﬁable. For
conﬁdentiality and integrity, Secure Sockets Layer/Transport Layer Security (SSL/TLS) is the
well-known Internet transaction standards, whereas for authentication no single scheme has
become predominant yet so far these days.
Orthogonal frequency division multiplexing (OFDM) is modulation technique used
in high speed communication. OFDM is special case of frequency division multiplexing.
OFDM offers various advantages. The major drawback of OFDM system is its sensitivity to
carrier frequency offset (CFO). Various causes of CFO are Doppler shift and differences
between frequencies of transmitter and receiver. The carrier frequency offset leads to
intercarrier interference in OFDM systems. Because of intercarrier interference system
performance degrades. There are various techniques of mitigating effect of intercarrier
interference on OFDM system. In this paper effect of CFO on performance of OFDM system
for different modulation techniques such as BPSK, QPSK, 8PSK, and 16PSK is discussed.
Performance is evaluated in terms of bit error rate (BER).
This paper presents the third iterative UBW Fractal antenna with UWB application.
A new ultawideband circular fractal antenna with notched-band characteristics is presented. A
notched-band characteristic is achieved by employing an L-shape slot. The UBW fractal
antenna has been designed on substrate εr = 4.3, thickness h= 1.53 mm with 6 mm radius. The
impedance bandwidth of the proposed fractal antenna is 8.3 GHz ranging from 3.7 GHz to 12
GHz with circular polarization. Analysis of antenna is done using HFSS.The proposed antenna
has been analyzed theoretically and experimentally with respect to design parameters. The
simulated results are in good agreement with the experimental results. This type of antenna is
useful for UWB wireless communication.
With the development of positioning in indoor wireless environments, RSS-based
indoor positioning algorithm has been widely applied.In this deliverable we provide the details
of building an indoor positioning system using WLAN Received Signal Strength (RSS)
fingerprints The standard deviation between measured and predicted path loss is 5.8 dB for the
entire data set, and can be as small as 4 dB for specific areas within a building. Path loss
contour plots for measured data are presented. In addition, contour plots for the path loss
prediction error indicate that the prediction models presented in this paper are accurate to
within 6 dB for a majority of locations in a building. In our case, users that carry a terminal
(laptops) are able to self-locate and positioning is performed entirely on the device using the
observed RSS fingerprint. Currently, one positioning method, i.e. K-Nearest Neighbors (KNN)
and other one filtering method, i.e. Kalman filter, has been integrated into our positioning
platform. In the future we plan to implement and integrate more positioning and filtering
modules, while at the same time try to improve the performance with respect to the positioning
error by tweaking and fine-tuning both modules. The rest of this report is structured as follows.
The details four experimentation area in the premises of Enggbuilding .
In this paper, a new EBG structure is introduced and designed. This structure is
based on mushroom like EBG structure. But there is some difference in mushroom like EBG
and new EBG structure. Shape of both EBG are different & in new EBG structure, no
connecting via between patch and ground plane.The basic principle of the EBG is that it
absorbs surface waves that reduces losses of the radiator to a great extent. A UWB monopole
antenna is proposed and the EBG structures are implemented with it to increase the gain of the
antenna over the UWB band.
According to the result of moving object detection research on video sequences, this
paper proposes a new method to detect moving object based on background subtraction. First
of all, we establish a reliable background updating model based on statistical and use a
dynamic optimization threshold method to obtain a more complete moving object. And then,
morphological filtering is introduced to eliminate the noise and solve the background
disturbance problem. At last, contour projection analysis is combined with the shape analysis
to remove the effect of shadow; the moving human body is accurately and reliably detected.
The experiment results show that the proposed method runs quickly, accurately and fits for the
Wells constructed by the lining with the terracotta rings are called as Ring Wells
were excavated from large number of ancient sites from India. These ring wells were identified
as soak-pits, draw-wells or granaries just on the basis of their context and content from the
physical observations. Since no one has studied from chemical point of view, present study
reveals some features of ring well from chemical point of view first time by analyzing the
filling material of the ring well from ancient historic site BhonDist.Buldhana,Maharashtra.