At the Decatur carbon capture and storage site (IL, USA) CO2 has been injected from 2011–2014 2017 to present near base of Lower Mt. Simon Sandstone saline reservoir, resulting in microseismicity. Microseismicity is mainly located basement distributed distinct spatial clusters. The lack significant impedance contrasts within makes interpretation active-source seismic reflection data challenging...

The [FeFe] hydrogenase HydA1 from Chlamydomonas reinhardtii has been studied using 1H NMR spectroscopy identifying the paramagnetically shifted 1H resonances associated with both the [4Fe-4S]H and the [2Fe]H subclusters of the active site "H-cluster". The signal pattern of the unmaturated HydA1 containing only [4Fe-4S]H is reminiscent of bacterial-type ferredoxins. The spectra of maturated HydA...

We investigate heating of the cool core of a galaxy cluster through the dissipation of sound waves excited by the activities of the central active galactic nucleus (AGN). Using a weak shock theory, we show that this heating mechanism alone cannot reproduce observed temperature and density profiles of a cluster, because the dissipation length of the waves is much smaller than the size of the cor...

Scheduling the sensors active and sleep period is significantly important for achieving energy efficiency in resource constrained Wireless Sensor Networks (WSNs). Most existing node scheduling schemes consider only the energy efficiency of sensor nodes and cannot be used for mobility-centric applications since they are designed for static network topology. Though a few node scheduling schemes a...

In wireless mobile cellular systems, it has been popular for mobiles to support some short-range wireless communication protocols (SRWCPs)−Bluetooth, Zigbee, NFC (near field communication), etc. In this paper, we introduce a simple SRWCP-aided downlink cooperative receiving scheme. In the proposed scheme, a cluster is composed by some active mobiles which can be connected via SRWCPs, and then t...

—We propose an energy-efficient network architecture that consists of ad hoc (mobile) cognitive radios (CRs) and infrastructure wireless sensor nodes. The sensor nodes within communications range of each CR are grouped into a cluster and the clusters of CRs are regularly updated according to the random mobility of the CRs. We reduce the energy consumption and the end-to-end delay of the sensor ...