October 2011 Issue Vol.1 No.10

Location Privacy Using User Anonymity And Dummy Locations

Kusum Gupta, Ajay Singh Yadav and Shashank Yadav
Assistant Professor, Deptt of Information Technology SRM UNIVERSITY,NCR CAMPUS,MODINAGAR,GHAZIABAD(U.P)

Abstract: Abstract-This paper concentrates on location privacy, a particular type of information privacy that can be defined as the ability to prevent others from learning one’s current or past location. Here we are proposing a new technique that uses user anonymity and dummy locations for location privacy while using location aware application server. User communicates with the server through a trusted proxy server. It sends dummy locations to the application server with its original position. The user uses temporary pseudonyms that are changed frequently according to some algorithm. Whenever pseudonyms are changed by a user, dummy locations are chosen in a tricky fashion. That makes the task of tracing the user very difficult.

Keywords: Location privacy, pseudonym, de-anonymize, dummy-Locations, location anonymity, trusted proxy.

Performance of Mortar Incorporating RHA Under Elevated Temperature

Muhammad Harunur Rashid, Md. Keramat Ali Molla, Tarif Uddin Ahmed,
1 Muhammad Harunur Rashid, PhD Student, Department of Civil Engineering, Khulna University of Engineering & Technology, Khulna, Bangladesh
2 Md. Keramat Ali Molla. Professor, Department of Civil Engineering, Khulna University of Engineering & Technology, Khulna, Bangladesh.
3 Tarif Uddin Ahmed. Professor, Department of Civil Engineering, Rajshahi University of Engineering & Technology, Rajshahi, Bangladesh.

Abstract: Mortar is one of the important components of concrete. At the time of fire in structure, the mortar faces the major problem and finally becomes debonded or spalled. At the time of fire different techniques were applied to control it. Applying of water jet is one of the techniques. The performance of mortar subjected to high temperature was examined in this work. Six series of cubical 5cm × 5cm × 5cm mortar specimens were cast from OPC with partial replacement (10, 15, 20, 25 & 30%) of OPC by Rice Husk Ash (RHA). ASTM graded sand was used as fine aggregate. After 90 days curing in laboratory condition these specimens were heated in electric furnace to 200, 300, 400, 500 and 700 oC for 30 minutes. After burning the specimens were removed from the furnace and kept in normal environment and quenched with water for 10 seconds and then kept in ambient temperature to loose the heat. After one day from heating samples were then tested. In this work it was observed that the strength was higher than the controlled sample up to 20% replacement levels under elevated temperature.

Keywords: Fuzzy expert system, fuzzy logic, fuzzy rules, back pain diagnosis


Adlin Blessi.T.L.,
Department of Biotechnology, Karunya University, Coimbatore, India.

Abstract: DNA fingerprinting technique is considered as a powerful technique and is widely used all over the globe today. The basic requirement for it is the availability of biological samples of the individuals. Buccal cells are increasingly used as a source of quality DNA to improve participation rates in molecular studies. These cells are routinely shed and replaced by new cells. We used Random Amplified Polymorphic DNA (RAPD) markers to assess genetic diversity among 6 individuals. The amount of genetic variation was evaluated by polymerase chain reaction amplification with 10-mer oligonucleotide primers. The similarity co-efficient between each pair of accession were used to construct a Dendrogram showing relationships between them using Unweighed Pair Group Method Average (UPGMA).

Keywords: Buccal cells, DNA Fingerprinting, Random Amplified Polymorphism (RAPD), and genetic variation.

Implementation of an Onboard Visual Tracking System with Small Unmanned Aerial Vehicle (UAV)

Ashraf Qadir, William Semke, Jeremiah Neubert
Mechanical Engineering Department, University of North Dakota Grand Forks, North Dakota-58201, USA

Abstract: This paper presents a visual tracking system that is capable of running real time on-board a small UAV (Unmanned Aerial Vehicle). The tracking system is computationally efficient and invariant to lighting changes and rotation of the object or the camera. Detection and tracking is autonomously carried out on the payload computer and there are two different methods for creation of the image patches. The first method starts detecting and tracking using a stored image patch created prior to flight with previous flight data. The second method allows the operator on the ground to select the interest object for the UAV to track. The tracking system is capable of re-detecting the object of interest in the events of tracking failure. Performance of the tracking system was verified both in the lab and during actual flights of the UAV. Results show that the system can run on-board and track a diverse set of objects in real time.

Keywords: Buccal cells, DNA Fingerprinting, Random Amplified Polymorphism (RAPD), and genetic variation.

Read complete October 2011