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Volume VI Issue I

8 paper(s)

Trajectory Planning of a One Degree of Freedom Assistive Robotic Knee

Abhilash S S, Manu V Thottackkad · January 2017 · pp. 01-05

The invention of Hybrid Assistive (HAL) Limb was chosen as one of the important inventions for the mankind. Hybrid Assistive Limb is mainly of two types. HAL controlled by bio electrical signals sensed from the human body and HAL operated by external microcontroller based electrical devices. This thesis mainly concentrates for the development of the latter. These types of devices possess operating easiness and assistance to physically handicapped people. These devices are less complex in operation and cheaper than the former. The use of passive devices may cause inconveniences in daily routines and difficulties in mobility for the user. Current robotics orthotic devices have advantages over passive devices because it is capable of aiding the knee and reducing the knee stress without affecting the mobility of the user. The objective of this work is to study and develop a portable active orthotic device that can be used for rehabilitative purposes. The 3D model of the proposed assistive mechanism has been created. This structure is then analysed. Trajectory planning of the knee joint by considering human walking pattern is also done. The position velocity and acceleration of the joint with respect to time has been plotted using MATLAB and the results obtained are discussed.

Traceability Technologies across the Food Value Chain

Priyanka Gupta, Himalaya Kaul · January 2017 · pp. 06-09

With the globalization of food industries, vitality of traceability has increased substantially. The need for a reliable identification and tracking system is therefore essential to ensure the safety and quality of food reaching the consumer. Current market for tracing technologies is restrained by various factors like high cost, skepticism about efficiency and liability of technology. This paper gives an overview of relevant food tracing technologies available in the market and a descriptive analysis of their efficiency, liability, features and characteristics.

“Fatigue and Fracture Toughness Behavior of Al 2219/B4C Particulate Metal Matrix Composites”

M. N.Choudhari, Jayant. K. Kittur · January 2017 · pp. 10-15

In the present study, the fatigue and fracture toughness behavior of Al 2219/B4C particulate metal matrix composites is investigated. The composites were fabricated by reinforcing B4C particles of 125microns with varying wt% of 2 and 4, using stir casting process. The performance of the prepared composites was compared with the alloy Al 2219 to study the improvement in fatigue and fracture toughness behavior as a result of reinforcement particles. The homogeneous dispersion of the reinforcement particles in the matrix was examined using optical microscope. The result reveals that the addition of B4C improves both fatigue strength and fracture toughness of composites over the alloy, further by increasing the wt% of B4C reinforcement in the matrix, there was a significant improvement in both the properties. As load increases there was decreasing cycles which indicates load has more effect on the fatigue strength. Overall, fatigue strength and Fracture toughness of the composites was improved to 63.97% and 33.34% respectively with respect to 4wt% B4C particles reinforcement compare to base alloy.

Study of Ambient Gamma Radiation Level in Costal Uttara Kannada District, Karnataka, India

Suresh.S and Dr. Shivaprakash M.C · January 2017 · pp. 16-20

Ambient gamma radiation level in costal Uttara Kannada district is measured using an environmental radiation dosimeter (sensitivity 1R/h).Measurements were made in 17 locations both in disturbed and undisturbed areas of study locations. The measured dose rate varies from 45.6 to 131.3 nGyh-1. Relatively higher radiation levels around some places are obviously due to the presence of granitic outcrops in these regions. Significant seasonal variations in gamma dose rate were not observed during the study. .

Leadership Styles of Women Entrepreneurs a Study on Academic Institutions in Guntur Region

K. Malleswara Rao, M.Ravi, Y.Suresh · January 2017 · pp. 30-35

Entrepreneurship is one which enables the person to make wonders, innovations for the development of Nation along with Individuals improvement in all the aspects like economy, social, cultural etc.. It is identified that as a source of creation of jobs, it is the right way of utilizing the nation resources. Entrepreneurship that dependents on the personality and person 's capability i.e. entrepreneurial skills. Entrepreneurship has been criticized with gender difference since days along. All the way it is impossible to lead the society without women business is not an exception for it. Many studies said that these entrepreneurial skills are varying from one to one especially from men to a woman that is the reason why this paper aims to study the managerial skills of the women. The main objective of the paper is to understand the leadership qualities of women entrepreneurs of academic Institutions in Guntur region. Researcher collected data from women entrepreneurs of academic institutions in simple random manner with the constructed questionnaire and collected 80 samples. Analysis clearly showed thatwomen they are having wide variety of leadership skills and they are struggling to implement those variety skills.

Partial Face Recognition Based on Gabor Texture Kernels

Naveena M, G Hemantha Kumar · January 2017 · pp. 41-43

Biometrics refers to the recognition of individuals based on their physiological and behavioral traits. The Full and Partial face recognition is one of the challenging ongoing research works. For Public safety and national security enhance the needs for partial face recognition techniques, which are among the most secure and accurate authentication tools and these applications are not commonly used, yet, but the area is interesting especially in crime investigation. In this paper, we present the face recognition under partial visibility such of using partial face as biometric for person identification. The implemented method consists of three stages. In the first stage, pre-processing of both full and partial is done. In the second stage, features such as shape and textures are extracted. Finally, matching is done between pierced and non-pierced image of an individual.

A Investigation to Reduce Emissions from Engine

P K Pavan Kumar, Dr. K Rajgopal, Dr. Hiregoudar Yerranagoudaru · January 2017 · pp. 44-47

At present every nation is suffering to the effects caused by emission from the automobiles either from 2 stroke engines or from engines operating at 4 stroke, either diesel or gasoline engine. Every type of engine has its own parameters of emission in terms of Unburned Hydrocarbon (UBHC), Carbon Monoxide (CO), Nitrogen oxide (NOx) and many other parameters like particulate matter etc. In our attempt to reduce the emission from the 2 stroke petrol engine we are using an exhaust silencer pipe which is coated with a mixture containing sodium silicate, aluminum silicate and activated charcoal in the required proportionate, the coating is done manually to the exhaust pipe and care is taken so that the coating is uniform to maximum extent. The exhaust pipe is fitted with a baffle so that the exhaust gases from the engine are exposed to the refractory coating which is coated on the baffle as well as the inner surface of the exhaust pipe which will help to reduce the emissions of the exhaust. The results obtained are significant in reduction of the emissions of UBHC and CO.

Antimicrobial Pseudo Peptides with Synthesis of Novel Selective Membrane-Perturbation Activity

Ganghadhara MM, Dinesha R and Satish Kumar Murari · January 2017 · pp. 48-54

By incorporating carbamate bond(s) into a cytolytic peptide, novel pseudo peptides with potent antibacterial activity and low hemolytic activity were synthesized. Circular dichroism spectra suggested that the incorporation of carbamate bond(s) decrease the α helical conformation of the peptide in lipid membrane circumstances, which must be regarded as a major factor for the separation of antibacterial activity from cytotoxic activity for mammalian cell. Experiments in which dye was released from vesicles indicated that the potent antibacterial activity and low hemolytic activity of the pseudo peptides must be due to their great lipid membrane selectivity, The present result suggest that backbone modifications can be a great tool for developing pseudo peptides with improved biological activity and bioavailability from cytolytic peptides. .

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