The Event Horizon Telescope (EHT) has led to the first images of a supermassive black hole, revealing central compact objects in elliptical galaxy M87 and Milky Way. Proposed upgrades this array through next-generation EHT (ngEHT) program would sharply improve angular resolution, dynamic range, temporal coverage existing observations. These improvements will uniquely enable wealth transformativ...

The sensitive effect of O2 adsorption on the electronic properties of organic semiconductors is investigated by band structure calculation. O2 can actually p-dope the host materials even without illumination, i.e., a ground state property, in the circumstance of saturated coverage. Due to hybridization between O2 and polymer, Fermi level of the oxygenated system is pinned at the nearly half-fil...

Phylogenetic approaches have proven to be useful in astrophysics. We have recently published a Maximum Parsimony (or cladistics) analysis on two samples of 215 and 85 low-z quasars (z < 0.7) which offer a satisfactory coverage of the Eigenvector 1-derived main sequence. Cladistics is not only able to group sources radiating at higher Eddington ratios, to separate radio-quiet (RQ) and radio-loud...

In Internet of Things (IoT) enabled Wireless Sensor Networks (WSNs), there are two major factors which degrade the performance of the network. One is the void hole which occurs in a particular region due to unavailability of forwarder nodes. The other is the presence of energy hole which occurs due to imbalanced data traffic load on intermediate nodes. Therefore, an optimum transmission strateg...

"Responsible Choices" identifies the actions that the private sector and government should take to improve the U.S. health care system and accelerate and expand the health care revolution that is already underway. Policy proposals are made for Medicare; Medicaid; reforming the tax treatment of health insurance; insurance reforms and expanding group purchasing opportunities; and improving the av...

Wireless Sensor Networks (WSN) are highly distributed self organized systems. WSN have been deployed in various fields. Because of some hardware problems, especially with respect to energy supply and miniaturization, WSN have certain short comings. This paper focuses on various issues such as routing challenges and design issues, topology issues and Quality of Service support issues associated ...

We show that silicon nitride can provide uniform coverage of graphene in field-effect transistors while preserving the channel mobility. This insulator allowed us to study the maximum channel resistance at the Dirac (neutrality) point as a function of the strength of a perpendicular electric field in top-gated devices with different numbers of graphene layers. Using a simple model to account fo...

Algebraic-topological criteria for domain coverage, hole-detection, andmapping are given in the context of dynamic multi-agent systems navigating with respect to beacons or landmark visibility. The key constructs involve dual pairs of nerves of the relevant visibility and observation covers, based on a sensing relation, either binary or via distance/signal-strength. This, in turn, is used to co...

Compressive Sensing (CS) can reduce the number of data transmissions and balance the traffic load throughout networks. The sensors nodes are organized into clusters. In this paper we propose a clustering method where in the transmission range of the cluster head (CH) is the area of a cluster. Thus to avoid coverage hole problem. Within a cluster, node transmits data to the CH in a round robin f...

The BATSE earth-occultation database provides nine years of coverage for 75 γ-ray sources in the energy range 35− 1700 keV. For transient sources, this long time-base dataset makes it possible to study the repeated outbursts from individual objects. We have used the JPL data analysis package EBOP (Enhanced BATSE Occultation Package) to derive the light curves and the time evolution of the spect...