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An alternative method of transcutaneous wireless optical energy supply to an artificial cardiac pacemaker has been conceived, thereby negating the possibility of electromagnetic interference. In this research, a comparative analysis is made between two distinct arrays of photovoltaic cells, consisting of two different geometries. Being powered by a 5 mW 750 nm laser, that has a different spot size...
We report here a wet chemical approach towards the synthesis of Copper Oxide (CuO) Nanoparticles. CuO Nanoparticles were produced in the reaction between Copper sulphate and sodium hydroxide (NaOH) at room temperature. The fabricated nanoparticles were characterized using X-ray diffraction to study the crystallinity, purity and crystal structure of the nanoparticles. The morphology was observed in...
In this paper the impact of SWCNTs content on the optical performance and EHP generation rate of P3HT:PC60BM based BHJ OSC is presented using the Optical transfer matrix theory and Onsager-Braun formulism. The results from our optical simulation show that the presence of SWCNTs in the active layer composite of P3HT:PC60BM based BHJ OSC improves the exciton generation rate by broadening the absorption...
A distance based network localization determines the positions of the nodes in the network subject to some distance constraints. The network localization problem may be modeled as a non-convex nonlinear optimization problem with distance constraints which are either convex or non-convex. Existing network localization algorithms either eliminate the non-convex distance constraints or relax them into...
The objective of this paper is to present a multiagent system (MAS) that can enable integration of a number of IoT devices to allow grid-interactive and intelligent building operation. The proposed platform called BEMOSS — Building Energy Management Open Source Software is developed toallow sensing and control of HVAC, lighting and plug load controllers in small- and medium-sized commercial buildings...
This paper proposes a single-stage inverter topology for grid connected PV systems. Isolated voltage generated by the solar modules is effectively used in a neutral point clamped multilevel inverter to generate high quality AC voltage for feeding into the grid. The control scheme is implemented in synchronously rotating reference frame for independent control of active and reactive power. Loss calculation...
Smart grid, constituting of numerous components and sub-systems, can be a target for security threats. Failure of any sub-system to properly defend itself against attacks poses a serious risk to the protection of smart grid as a whole. Therefore, securing residential demand response (DR) applications as part of the smart grid requires careful attention. This paper discusses security concerns of a...
The objective of this paper is to present a conceptual architecture of a Building Energy Management Open Source Software (BEMOSS) platform. BEMOSS is an open source operating system that is expected to improve sensing and control of equipment in small- and medium-sized commercial buildings, reduce energy consumption and help implement demand response (DR). It aims to offer: scalability, robustness,...
Demand response applications within smart grid provide excellent opportunities for peak demand reduction through demand side load management. In the context of a smart grid, renewable energy resources are getting immensely popular as many homeowners are now opting for renewable energy systems at their residence. This paper presents a home energy management algorithm integrated with a renewable energy...
A home energy management (HEM) system has the potential to enable demand response (DR) implementation for residential customers. This paper presents a detailed hardware architecture that allows control of an air conditioning (AC) unit by varying the thermostat set point. This can be accomplished by controlling a Wi-Fi enabled thermostat via an HEM system. The hardware demonstration of the proposed...
A home energy management (HEM) system has the potential to enable demand response (DR) implementation for residential customers. This paper presents a detailed hardware architecture that allows control of an air conditioning (AC) unit by varying the thermostat set point. This can be accomplished by controlling a Wi-Fi enabled thermostat via an HEM system. The hardware demonstration of the proposed...
Increasing demand for high-speed applications in communication has shaped the need for highly integrated, high speed multiplier. A logic style that is becoming increasingly popular is MOS Current Mode Logic (MCML) due to its distinct advantages over conventional CMOS logic for high-speed applications. In this paper an 8-bit by 8-bit pipelined tree type multiplier designed using MCML, is presented...
A novel design of a single polarization fiber is proposed in this work. The fiber comprises an elliptical core with a central air-hole and side air holes. Analysis of different polarization properties of the newly designed fiber has been performed both with and without the presence of thermal stress. The investigation shows that the new design has larger birefringence compared to conventional side-hole...
Parsing is a process of transforming natural language into an internal system representation, which can be trees, dependency graphs, frames or some other structural representations. If a natural language be successfully parsed then grammar checking from this language becomes easy. In this paper we describe a context free grammar for Bangla language and hence we develop a Bangla parser based on the...
In this paper a UWB pulse generator for wireless inter and intrachip communication is introduced. The transmitter produces BPSK-modulated ultra-short Gaussian monocycle pulses of average duration 74ps. The circuit was implemented and simulated in HSPICE using IBM 90nm CMOS technology with a supply voltage of 1.2V. The transmitter performs at an input bit-rate of 10Gbps. The circuit has a low average...
Twitter, the social network service, is a rich source of information on customer response to a live event such as a television show. In this paper we present a case study where we analyzed publicly available tweets that were posted when a popular TV show was aired for the first time in a season. We use standard text-mining techniques to answer questions such as, what were the main themes during the...
In this paper, we suggest the idea of separately treating the connectivity and communication model of a Wireless Sensor Network (WSN). We then propose a novel connectivity model for a WSN using first order Reed-Muller Codes. While the model has a hierarchical structure, we have shown that it works equally well for a Distributed WSN. Though one can use any communication model, we prefer to use the...
Recently, a huge wave of social media has generated significant impact in people's perceptions about technological domains. They are captured in several blogs/forums, where the themes relate to products of several companies. One of the companies can be interested to track them as resources for customer perceptions and detect user sentiments. The keyword-based approaches for identifying such themes...
Genetic Algorithms (GAs) are a highly successful population based approach to solve global optimization problems. They have carved out a niche for themselves in solving optimization problems of varying difficulty levels involving single and multiple objectives. Most real-world optimization problems involve equality and / or inequality constraints and hence posed as constrained optimization problems...
This paper proposes the use of the combination of digital curvelet transform and local binary patterns for recognizing facial expressions from still images. The curvelet transform is applied to the image of a face at a specific scale and orientation. Local binary patterns are extracted from the selected curvelet sub-bands to form the descriptive feature set of the expressions. The average of the features...
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