Ingenieria

water storage and distribution The authors compared the formulation and computational performance of two numerical methods for modeling hydraulic transients in water distribution systems. One method is Eulerian-based, and the other is Lagrangian-based. The Eulerian approach explicitly solves the hyperbolic partial differential equations of continuity and momentum and updates the hydraulic state of the system in fixed grid points as time is advanced in uniform increments. The Lagrangian approach tracks the movement and transformation of pressure waves and updates the hydraulic state of the system at fixed or variable time intervals at times when a change actually occurs. Each method was encoded into an existing hydraulic simulation model that gave initial pressure and flow distribution and was tested on networks of varying size and complexity under equal accuracy tolerance. Results indicated that the accuracy ofthe methods was comparable, butthatthe Lagrangian method was more computationally efficient for analysis of large water distribution systems. Numerical methods for modeling transient flow in distribution systems BY DON J. WOOD. SRINIVASA LlNGIREDDY, PAUL F. BOULOS. BRYAN W KARNEY. AND DAVID L. MCF'HI::RSON ompurcr models for simularing rhe hydraulic and water qualitv hehav101' of water di~trihution S\stellls havc heen availahlc for many years. Rccenth these lllodc!" ha\l: hccn extended to analyze hniraulic tran"iCllt, as \\'ell. In thc p~l';t, most…

physical appearance. Boys want to gain muscles and girls want to be slim enough to wear the same kind of clothes models do. Girls worry so much about looking beautiful for the boys that they sometimes exaggerate on the amount of make-up and accessories they wear. There are six “whys” teens worrying so much about fashion: Statement For teenagers, fashion is first and foremost a social statement. It is an outward means of expression to their peers and the rest of the world. Identity…

be done on the schools and using all kind of medias possible, specially the most used for teenagers, such as internet, social networks, and TV programs. Another strategy that would be used is call famous and respected people on the youth world, like singers, actors, sportists and TV hosters to join the campaign. But not only the youth medias would be used, also traditional medias like radio, newspaper and magazines, in a campaign like “Crack nem pensar” of Grupo RBS. Using logos that…

with and how they affect their life. These issues are body image, divorce, teenage pregnancy and unsafe sex, high-school, drugs and alcohol, eating disorders and acne. Body image: «I'm fat. I'm too skinny. I'd be happy if I were taller, shorter, had curly hair, straight hair, a smaller nose, bigger muscles, longer legs.» As a teen, our body changes and so does our image. Some of us have problems adjusting, and this can affect our self-esteem. Self-esteem is important because…

103 Teenagers often start smoking because of the pressure of their ____. Challenges Peers Parents Disputes Goals Those bananas are not ____ yet. They are still green. Ripe Main Responsible Difficult Obedient Ann is a good teacher. She knows how to ____ children. Include Produce Deal with Reduce Pose Poor Mary is 18 years old but she has never had a date. Her parents do not allow ____. Clothing Dating Privilege Relationship Mirror All of the adjectives…

fé, chamado e cultura. • Menos de um em cada cinco têm alguma idéia de como relacionar a Bíblia com seus interesses escolares e profissionais. • A maioria não têm mentores adultos ou amizades significativas com os cristãos mais velhos, que podem orientá-los através das inevitáveis perguntas que surgem durante o curso de seus estudos. • Desconexão emocional do Cristianismo antes dos 16 anos. • O ambiente universitário não costuma causar a desconexão, apenas expõe o problema DA…

Teens years – a bed of roses... (or not) Most people think that being a teenager is a bed of roses and it is! But as all roses our lives have petals and some thorns, which can be, in my point of view, very painful. First of all, we have to establish priorities between family, school and social life. It isn’t easy, we want to be the perfect family member, who is always there for everybody, we want to succeed and have fun and be popular. But we can’t manage to be all of these and we…

atendidas, a terceira camada da pirâmide de Maslow fala de das necessidades de associação, que se referem às necessidades do indivíduo em termos sociais. As necessidades de associação incluem aspectos que envolvem relacionamentos baseados na emoção, pois seres humanos precisam sentir-se aceitos e fazendo parte de algo. Alguns exemplos destas necessidades são: * Amizade * Intimidade (amigos íntimos, mentores, confidentes) * Convivência social (círculos de convivência…

eliminando a vida privada dos seus componentes à redução da existência a uma perspectiva única, o totalitarismo. Lealdade, afeto, devoção, nada disto podia ser gasto com namoradas ou colegas, apenas com pessoas enquanto membros do grupo. A política exercida com a razão é o antídoto do fascismo, que sempre se apresenta como uma política de emoção. Ao perceber que todos estão completamente envolvidos no movimento, cegos e submissos aos seus desejos, conforme pretendia, o Professor…

ao ser diferente, sente-se como se não pertencesse ao meio em que está inserido. Nunca mostra realmente quem é, pois tem medo de não ser aceite. Uma pessoa que é diferente sente que está a remar contra a corrente. Ao nosso ver, uma pessoa que é diferente pode ser aquela que se veste de maneira diferente, que ouve música que não é comum ou que pode ter uma cor de cabelo estranha. A diferença está tanto no aspeto exterior de uma pessoa como no seu interior, desde a orientação sexual à…