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With the total energy consumption of computing systems increasing in a steep rate, much attention has been paid to the design of energy-efficient computing systems and applications. So far, database system design has focused on improving performance of query processing. The objective of this study is to experimentally explore the potential of power(More)
In cloud computing, workloads that lease instances on demand get to execute exclusively for a set time. In contrast, workloads that lease spot instances execute until a competing workload outbids the current lease. Spot instances cost less than on-demand instances, but few workloads can use spot instances because of the variable leasing period. We present(More)
In today's large-scale data centers, energy costs (i.e., the electricity bill) are projected to outgrow that of hardware. Despite a long history of research in energy-saving techniques, especially low-power hardware, little work has been done to improve the power efficiency of data management software. Power-aware computing research at the application level(More)
Data centers are well known to consume large amounts of energy. Since database is one of the major applications in a typical data center, building energy-aware database systems has become an active research topic recently. The quantification of the energy cost of database systems is an important task in designing such systems. In this paper, we report our(More)
Entering the era of cloud computing, data centers are scaling in a fast pace. However, as the increasing number of servers being deployed in data centers, the data center power distribution systems have already approached peak capacities. Since the upgrades of the power systems are extremely expensive, power oversubscription has become a trend in modern(More)
Although bone morphogenetic protein-2 (BMP2) is a well-characterized regulator that stimulates osteoblast differentiation, little is known about how it regulates intracellular Ca2+ signaling. In this study, intracellular Ca2+ concentration ([Ca2+ ]i ) upon BMP2 application, focal adhesion kinase (FAK) and Src activities were measured in the MC3T3-E1(More)
Internet services replicate data to geo-diverse sites around the world, often via consistent hashing. Collectively, these sites span multiple power authorities that independently control carbon emissions at each site. Serving data from a carbon-heavy site increases the service's carbon footprint, but it is hard to place data at sites that will have low(More)