1,118 research outputs found

    Design and Implementation of a Secure Communication Protocol

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    The main object of this paper is to present a mutual authentication protocol that guarantees security, integrity and authenticity of messages, transferred over a network system. In this paper a symmetric key cryptosystem, that satisfies all the above requirements, is developed using theorems of J.R. Chen, I.M. Vinogradov and Fermat and the decimal expansion of an irrational number

    Effectiveness of Resistance Training on the Strength of Scapulo-humeral Muscles and Abdominals in Male Volley Ball Players

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    Background: Volleyball is a sportive modality that requires strength in the upper and lower extremities along with the trunk musculature. The improvement of muscular strength is very important along with agility and flexibility for a volleyball player. Aim of the study to find the effectiveness of resistance training on the strength of scapulo-humeral muscles and abdominals in male volley ball players. Objectives of this study is find out the effect of resistance training on the strength of the scapulo-humeral muscles by measuring peak torque by using an isokinetic dynamometer and to find out the effect of resistance training on strength of abdominals through 1RM test. Methods: A group of 30 male volleyball players who have fulfilled the inclusion criteria were assigned into two groups control and experimental groups each consisting of 15 subjects. The subjects of the experimental group underwent resistance training under my supervision and the subjects of the control group done the same protocol unsupervised for 6 weeks. Results: There was significant improvement in the strength of scapula-humeral muscles and abdominals in the experimental group when compared to the control group when the pre and post intervention values were measured (p=0.05). Conclusion: Resistance training under supervision of the therapist resulted in significant improvement in strength of the scapulo-humeral muscles and abdominals in the male volleyball players

    Simple Procedures for Left and Right Keys of semi-standard Young tableaux

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    We give simple procedures to obtain the left and right keys of a semi-standard Young tableau.Comment: 17 page

    Physically active adults reported higher levels of family happiness, harmony and health: findings from the Hong Kong Family and Health Information and Trends Survey (FHinTs) under FAMILY: A Jockey Club Initiative for a Harmonious Society Project

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    Oral Poster Presentation SessionBehavioral Risk Factor Surveillance showed half (50.1%) of Hong Kong adults, aged 18-64, had not performed moderate physical activity (PA) and two-third (62.2%) had not performed vigorous physical activity (PA) in the past week. Whether PA was associated with family well-being (happiness, harmony and health) is less known. We examined the associations of moderate and vigorous PA with perceived family health, happiness and harmony in Hong Kong adults. The Hong Kong Family and Health Information and Trends Survey (FHinTs) was conducted in 2013 using random telephone interviews on 1502 adults aged 18+ with 70.6% response rate. PA was measured using two questions: (1) During the past 7 days, on how many days did you do at least 10 minutes of moderate physical activities (e.g. carrying light loads, or bicycling at a regular pace but do not include walking)? (2) Same question on vigorous physical activities (e.g. aerobics, heavy lifting, or fast bicycling)? Family well-being was measured using three separate questions of perceived family happiness, harmony and health with response ranging from 0-10 with higher scores indicating better well-being. General linear model was used to calculate β-coefficient for family well-being adjusting for potential confounders. Data were weighted by sex and age using 2012 census data. Of 1502 respondents (45.5% male, 73.4% aged 25-64), the average days of having moderate and vigorous PA were 2.42 (±2.75), and 1.46 (±2.13) respectively. Moderate PA was significantly associated with family happiness (adjusted β=0.09, p<0.001), and harmony (adjusted β=0.06, p=0.01) but not health (adjusted β=0.03, p=0.25). Vigorous PA was significantly associated with family happiness (adjusted β=0.12, p<0.001), harmony (adjusted β=0.09, p<0.001) and health (adjusted β=0.05, p=0.03). Increasing PA levels was associated with family well-being. Prospective studies are needed to confirm the findings. Intervention studies are warranted.postprin

    PROPERTIES ANALYSIS OF WASTE PLASTIC OIL AND SIZE MEASUREMENT OF NANO PARTICLE (ALUMINIUM OXIDE)

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    Environment concerns and depletion of petroleum fuels have created a need for the search fuels for internal combustion engines. Transformation of waste to energy is one of the recent trends in minimizing not only the waste disposal but also could be used as another fuel for internal combustion engines. Plastics are vitally necessary materials in the modern world and application in the industrial field is continually increasing. In this context, waste plastic are currently receiving renewed interest. As an alternative, non-biodegradable, and renewable fuel, waste plastic oil its receiving increasing attention. In this work we choose plastic oil as alternate fuel its properties which relates almost same to diesel. So plastic oil is used as an alternate fuel for direct injection diesel engine
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