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Social networking sites, like Twitter, have become the fastest means of communication. Millions of user tweet everyday discussing recent and important issues. Generally, the tweets are identical or similar in nature, which causes information overload on user's wall. This makes it difficult for the user to keep a track of all the events. The best solution for this is to summarize tweets that are similar,...
Clustering is the process of partitioning a set of data objects into subsets. It is commonly used technique in data mining, information retrieval, and knowledge discovery for finding hidden patterns or objects from a data of different category. Text clustering process deals with grouping of an unstructured collection of documents into semantically related groups. A document is considered as a bag...
This paper provides a quick overview of New Zealand electricity infrastructure. This includes the industry structure, current and future generation portfolio and the market operation. It then proceeds to inform about the generic requirements for on-line Dynamic Security Assessment (DSA). Covering structural components, functional aspects and issues associated with modeling, computation, performance,...
Ultra-Wideband (UWB) communication is a recent high speed wireless technology that uses sub-nano second pulses to transmit information. According to United States Federal Communications Commission (FCC), a UWB technology is a form of wireless communication in which signals occupy a wide bandwidth, greater than the lesser of 500MHz or 20% of the center frequency of the signal is consider as an ultra...
A flipped current mirror and a flipped voltage follower suited to low-voltage and low power operation is applied to the design of current conveyors (CCII). A new topology (class-A )is proposed operating at 1.5v and featuring simplicity, compactness, low power consumption and bandwidths up to 100 MHz for a 0.5μm CMOS technology.
— Recent advances in the technologies of ICs have highlighted the usefulness of the attractive and elegant current-mode circuit solutions in a large number of signal processing applications. This paper discusses effect of scaling two different CCII circuits: one is based on current mirrors, and second is based on a differential pair. The authors have simulated above two configurations using different...
The spectral absorption coefficients of particulate matter are important parameters in bio-optical models and to understand the behavior of underwater light field. Particulate (aP(?)), phytoplankton (aPHY(?)) and non-algal particles (NAP) (aNAP(?)) absorption were measured along the 70-m isobath in the southeastern Bering Sea. The surface distribution of aP(?), aPHY(?) and aNAP(?) at 443 nm did not...
Optical properties of chromophoric dissolved organic matter or CDOM were studied in the Barataria basin from field samples collected on 26 September 2007 from stations located in the lower and upper Barataria bay influenced by marine waters to the upper basin influenced by freshwater sources. CDOM absorption at 412 nm acdom(412) increased seven-fold from 0.74 m-1 near the Barataria Pass to about 5...
The shoal dominated region of the Atchafalaya shelf in the northern Gulf of Mexico is an important resource for sand mining in Louisiana, USA. Algal blooms are seen each year in the study area like most of the northern Gulf of Mexico. Absorption measurements carried out in this region are presented and analyzed. The freshwater input from the Atchafalaya River and the surrounding coastal wetlands and...
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