345 research outputs found

    Effect of Aerobic Exercises on Vital Capacity and Body Mass Index of Adults

    Get PDF
    The article discusses the research conducted at a school in India which explores the impact of aerobic exercises on the body mass index and vigour vitality of adults. The experiment utilized a random sampling method and divided 30 adults into experimental group and control group. Activities are noted for the 6-week training program which include walking, running and cycling

    Design and synthesis of non-uniform high impedance surface-based wearable antennas

    Get PDF
    This thesis is concerned with the design and fabrication of flexible textile wearable antennas integrated with the newly introduced artificial materials known as high impedance surfaces (HIS). With the rapid growth and use of wireless communication systems more and more people are taking advantage of portable computing systems on daily basis. Also with the advancement in electronic industry new and sophisticated wireless devices have been introduced which are being used closed to human body. For user convenience there is an increasing need for integrating antennas on or in the clothing. The conventional antennas being rigid and obtrusive to user movements have limitations. There is a need of antennas made of flexible textile materials that can be part of user clothing defined as wearable antennas. Also with the miniaturisation trend in electronic industry, antenna designers are facing a challenge to come up with a compact, low profile,multi function efficient antenna designs occupying a small physical space. By integrating antennas in user clothing this limited space problem can also be resolved. With the easy availability of electro textile materials it is now possible to manufacture complete fabric antennas. The entire design cycle of wearable fabric antennas starting from material selection to prototype fabrication and antenna testing was carried out in this thesis. A novel technique for antenna fabrication using electro textile material is proposed that will have major implications on wearable computing industry. The use of HIS for antenna performance enhancement is growing at a rapid pace. In this thesis a modified wearable form of HIS defined as non uniform HIS is presented and successfully integrated with antenna for improved performance under low profile limitation. The HIS was also integrated with normal patch antenna to reduce its size and improve its gain and impedance bandwidth. These wearable antennas were then tested under real operating conditions. The measured results validated the design idea and showed that there are many possibilities for these unique artificial materials to be exploited for future wearable on body communication antennas

    The Nexus between Economic Indicators and Economic Growth in Brazil

    Get PDF
    The objective of the paper is twofold. First is to examine the relationship between economic indicators and economic growth of Brazil economy, second is to look the impact of foreign direct investment on Gross domestic product of Brazil economy. The time series data from 1986-2014 was used of the remittance, foreign direct investment, domestic savings and capital formation to know the impact on Gross domestic product of Brazil. Results have been analyzed by using advanced econometric tools like- unit root test (both ADF and PP), OLS methods and Granger causality test. The results confirmed that, both capital formation and Remittance have positive relationship with GDP, whereas FDI and savings show insignificant influence on GDP of Brazil. In order to minimize the gap between domestic saving and investment and to bring the technology and managerial know-how, remittance could play important role on the way of economic development of Brazil. Similarly the Capital formation is playing an important role in the economic development due to positive impact on GDP. Therefore, government should take pragmatic policy, develop infrastructure, stabilized the political environment, law and order situation. Keywords: Gross Domestic Product, Unit Root test, Granger Causality, Brazi

    Design and synthesis of non uniform high impedance surface based wearable antennas

    Get PDF
    This thesis is concerned with the design and fabrication of flexible textile wearable antennas integrated with the newly introduced artificial materials known as high impedance surfaces (HIS). With the rapid growth and use of wireless communication systems more and more people are taking advantage of portable computing systems on daily basis. Also with the advancement in electronic industry new and sophisticated wireless devices have been introduced which are being used closed to human body. For user convenience there is an increasing need for integrating antennas on or in the clothing. The conventional antennas being rigid and obtrusive to user movements have limitations. There is a need of antennas made of flexible textile materials that can be part of user clothing defined as wearable antennas. Also with the miniaturisation trend in electronic industry, antenna designers are facing a challenge to come up with a compact, low profile,multi function efficient antenna designs occupying a small physical space. By integrating antennas in user clothing this limited space problem can also be resolved. With the easy availability of electro textile materials it is now possible to manufacture complete fabric antennas. The entire design cycle of wearable fabric antennas starting from material selection to prototype fabrication and antenna testing was carried out in this thesis. A novel technique for antenna fabrication using electro textile material is proposed that will have major implications on wearable computing industry. The use of HIS for antenna performance enhancement is growing at a rapid pace. In this thesis a modified wearable form of HIS defined as non uniform HIS is presented and successfully integrated with antenna for improved performance under low profile limitation. The HIS was also integrated with normal patch antenna to reduce its size and improve its gain and impedance bandwidth. These wearable antennas were then tested under real operating conditions. The measured results validated the design idea and showed that there are many possibilities for these unique artificial materials to be exploited for future wearable on body communication antennas.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

    Enhancing The Security of Caesar Cipher Using Double Substitution Method

    Get PDF
    Abstract-Cryptography comes from the Greek words for "secret writing". The plain text is encrypted into the corresponding cipher text, using an algorithm and a key. Substitution and Transposition are two techniques used for converting data into non-readable form. Caesar Cipher is an example of substitution technique. In this paper we have proposed a cipher that uses basic encryption techniques of substitution and transposition. A single columnar transposition followed by a double substitution is applied on a Caesar cipher in order to make it a stronger and a more secure cipher
    • …
    corecore