A large expansion of photovoltaic panel production in China coincided with a dramatic fall in the cost of solar photovoltaic systems in California and a boom in installations between 2009 and 2013. However the roll of local contractors that install the systems is not well understood. Using detailed data of approximately 125,000 solar installations in California between 2007 and 2014 I argue tha...

Museums increasingly use digital technology to enhance exhibition experiences for families, notably in relation to physically mediated installations for young children through Natural User Interfaces. Yet little is known about how families and children engage with such installations and the kinds of interactive experiences they engender in museum spaces. This paper addresses a pressing need for...

We describe a highly scalable algorithm for secure system evolution in an infrastructure for widely distributed Byzantine fault-tolerant applications. To maintain high availability, the system and its applications evolve on-line, providing uninterrupted service during installation of upgrades. Installations are made to appear atomic with respect to other installations and application execution ...

Biological treatment ofhazardous wastes has the potential for effective, practical, and economical remediation ofsome Superfund sites and other hazardous waste problems. Some biological hazardous waste treatments may also be applicable for preventing the occurrence of future hazardous waste sites. From a public health perspective, this technology may allow for the treatment of environmental haz...

The hazardous materials risk management process involves a set of crucial logistical decisions referring to the planning of the hazardous materials transportation and the organization of the emergency response operations. The objective of this paper is to present a Decision Support System for hazardous Materials Transportation Risk Management that covers integrated hazardous materials distribut...

Decisions determining the use of land for energy are of exigent concern as land scarcity, the need for ecosystem services, and demands for energy generation have concomitantly increased globally. Utility-scale solar energy (USSE) [i.e., ≥ 1 megawatt (MW)] development requires large quantities of space and land; however, studies quantifying the effect of USSE on land cover change and protected a...