When parallel applications are run in large-scale distributed environments, such as grids, peer-to-peer (P2P) systems, and clouds, the set of resources used can change dynamically as machines crash, reservations end, and new resources become available. It is vital for applications to respond to these changes. Therefore, it is necessary to keep track of the available resources—a problem which is...

1930 yılından günümüze uzanan aerojeller; Guinness rekorlar kitabına giren en hafif ve katı malzeme olarak seçilmiştir. Yüksek ısıl absorbsiyon özelliği, çok iyi yalıtkanlık kabiliyeti, mezo gözenek yapısı mukavemetinin yüzey alanının yüksek olması gibi üstünlüklerinin birçok malzemeye alternatif kullanım avantajı sektörde olanağı sunmaktadır. Bu çalışmada, sol-jel tekniği kullanılarak saflıkta...

This paper evaluates a series of programs, run by a company called OPOWER, to send Home Energy Report letters to residential utility customers comparing their energy use to that of their neighbors. Using data from randomized natural …eld experiments at 600,000 treatment and control households across the United States, I estimate that the programs reduce energy consumption by 1.1 to 2.8 percent ...

We focus on residential electricity and gas demand, and ask three research questions. First, how does residential energy use respond to prices? We specifically wish to examine whether ownand cross-price elasticities have changed in recent years, given the evolution of the energy market. Second, is such responsiveness sensitive to equipment and energy choices that are not easily reversed (e.g., ...

In an e¤ort to reduce energy use, governments in the United States and many other countries subsidize energy e¢ cient lightbulbs or ban traditional incandescent bulbs. We evaluate one important rationale for these policies: that imperfect information or attentional biases cause consumers to purchase more incandescents than they would in their private optima. We formalize a model of consumer cho...