Determination of RF source power in WPSN using modulated backscattering

A wireless sensor network (WSN) is a wireless network consisting of spatially distributed autonomous devices using sensors to cooperatively monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants, at different locations. During RF transmission energy consumed by critically energy-constrained sensor nodes in a WSN is related to the life time system, but the life time of the system is inversely proportional to the energy consumed by sensor nodes. In that regard, modulated backscattering (MB) is a promising design choice, in which sensor nodes send their data just by switching their antenna impedance and reflecting the incident signal coming from an RF source. Hence wireless passive sensor networks (WPSN) designed to operate using MB do not have the lifetime constraints. In this we are going to investigate the system analytically. To obtain interference-free communication connectivity with the WPSN nodes number of RF sources is determined and analyzed in terms of output power and the transmission frequency of RF sources, network size, RF source and WPSN node characteristics. The results of this paper reveal that communication coverage and RF Source Power can be practically maintained in WPSN through careful selection of design parametersComment: 10 pages; International Journal on Soft Computing (IJSC) Vol.3, No.1 (2012). arXiv admin note: text overlap with arXiv:1001.5339 by other author

Effect of Endurance Training program on body composition and blood glucose among medical college students

The purpose of the study was to determine the effect of endurance training on body composition, cardiovascular endurance and blood glucose among medical college students. A total number of 40 male medical students volunteered for the study and they were randomly assigned to either experimental Group („EXP?: N=20) or control Group („CON?: N=20). Physical examination and medical checkup at the initiation of the study yielded normal results in all subjects and none of them received any medication during the period of the study. The experimental group underwent an endurance training program of sloe jogging for a period of 8 weeks, whereas the control group maintained their regular routine activities. The training load was gradually increased with the number of weeks. The subjects of both the groups were tested on body weight, BMI, and fasting blood sugar 24 hours before and after the period of experimentation. The collected data were statistically analyzed by using analysis of covariance (ANCOVA) and the data was analyzed in SPSS statistical computer package. The results of the study showed that there was significant difference among the adjusted post test mean of experimental group and control group in body weight and BMI with no change in blood Glucose

Some New Developments in Semiconductor Structures

Some of the recent developments in the field of semiconductor devices are discussed. Two trends are apparent in this area of work. One is the continuous refinement of processes and instruments which enables us to design and fabricate devices in ever smaller dimensions. The second is the study of new structures which are now made possible by such advances in instrumentation and materials technology. New devices based on quantum well structures, superlattices and bandgap engineering are briefly discussed

A CRITICAL REVIEW ON DANTAHARSHA IN SHALAKYATANTRA

Mukha is considered as one of the Nava dwaras. Danta is the Anga (part) of Mukha. There are various diseases affecting the Mukha and their Angas. As preventive therapy our Acharyas have mentioned Kavala, Gandusha, Dantadhavan, Mukhaprakhalana etc in Dincharya. One who does not indulge in such regimen is sure to be affected by the diseases of the Mukha. Dantaharsha is one of the 8 Dantaroga explained by Acharya Sushruta and it is the most common disorder of the mouth. Clinically, if teeth do not tolerate cold or heat or any other kind of touch, it is known as Dantaharsha. It can be compared with dental hypersensitivity. Several people all around the world experience this painful condition and are highly prevalent in the adult populations. Dantagatharogas, its causes, prevention and treatment are explained in detail in all the ancient texts of Ayurveda. This shows the importance given to oral health during those eras and even now, it is rightly said oral health is equal to overall health. Many remedies are prescribed in modern medicine for the treatment of dentine hypersensitivity like use of fluorides, oxalates etc in the form of paste, lasers etc. But these methods are quite expensive and often recurrence of the symptoms is seen. Long use of these are said to cause allergic reaction to gums. So it becomes relevant to develop an easy, economic, non toxic and approachable modality as a treatment measure in Dantaharsha

A COMPARATIVE STUDY ON THE EFFICACY OF PRAPOUNDARIKADI TAILA AND BHRINGARAJA TAILA NASYA AND SHIROABYANGA ALONG WITH DHATRITILADIYOGA INTERNALLY IN AKALA PALITHYA

Skin and hair color have been at the center of attention of humans since ancient times. Premature greying is an important cause of low self-esteem, often interfering with socio-cultural adjustment. And it is a burning problem as large percent of population especially young men and women in present times are suffering. In Ayurveda premature graying of hair is called as Akalapalitya. The incidence of premature ageing along with Akala Palitya is on increase, particularly in tropical and developing countries. According to W.H.O in India, its incidence is high in the age group of 20-30 years. Hence premature graying has long attracted researchers and industry alike with scientific as well as commercial targets. Hair coloring involves the use of chemicals which can result in a range of adverse effects like allergic reaction. Yet, apart from various hair dyes of varying efficacy and duration, fully satisfactory solutions for the graying problem remain to be brought to market.In this study, Prapoundarikaditaila and Bhringarajataila was taken for Nasya and Shiroabhyanga which has been mentioned in classics for Urdhwajathrugata Rogas and Palithya. Also Dhatritiladiyoga having Rasayana property helps in blackening of hair told by Acharya Yogarathnakara. In the present study 40 diagnosed Akala Palithya cases were divided into two groups of 20 each. Group A was treated by Prapoundarikaditaila Prathimarsha Nasya and Shiroabyanga along with Dhatritiladiyoga internally twice daily for 90 days. Group B was treated by Bhringarajataila Prathimarsha Nasya and Shiroabyanga along with Dhatritiladiyoga internally twice daily for 90 days. In the present study it was observed that Group A showed better results compared to that of Group B. 

A Pattern Based Model Driven Approach to Model Transformations

The OMG's Model Driven Architecture (MDA) initiative has been the focus of much attention in both academia and industry, due to its promise of more rapid and consistent software development through the increased use of models. In order for MDA to reach its full potential, the ability to manipulate and transform models { most obviously from the Platform Independent Model (PIM) to the Platform Speci_c Models (PSM) { is vital. Recognizing this need, the OMG issued a Request For Proposals (RFP) largely concerned with ending a suitable mechanism for transforming models. This paper outlines the relevant background material, summarizes the approach taken by the QVT-Partners (to whom the authors belong), presents a non-trivial example using the QVT-Partners approach, and finally sketches out what the future holds for model transformations

A model driven approach to building implementable model transformations

The OMG's Model Driven Architecture (MDA) initiative has been the focus of much attention in both academia and industry, due to its promise of more rapid and consistent software development through the increased use of models. In order for MDA to reach its full potential, the ability to manipulate and transform models { most obviously from the Platform Independent Model (PIM) to the Platform Specifc Models (PSM) { is vital. Recognizing this need, the OMG issued a Request For Proposals (RFP) largely concerned with finding a suitable mechanism for transforming models. This paper outlines the relevant background material, summarizes the approach taken by the QVT-Partners (to whom the authors belong), presents a non-trivial example using the QVT-Partners approach, and finally sketches out what the future holds for model transformations