K. Prasad Reddy, I. Kavitha Jackleen, N. Suneel Kumar, B. Naveen Kumar |
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Proficient Detection and Communications in Varied Facility-Oriented Structures |
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Service orientation is an approach to software systems development that has become a popular way to implement distributed, loosely coupled systems, because it offers such features as standardization, platform independence, well-defined interfaces, and tool support that enable legacy system integration. In such platforms, the collaborations typicallyinclude both human and software services, thus creating highly dynamic and complex interactions.The increasing complexity of compositions and the distribution ofpeople and services require adaptive and context-aware interaction models.We present a novel approach addressing the need for flexibleinvolvement of experts and knowledge workers in distributed collaborations. In this paper we investigate methods for exploiting such community feedback to automatically identify high quality content.ExpertHITS takes trust-relations and link properties in social networks into account to estimate the reputation of users.In computer science, trust is an essential component of the vision for the Semantic Web, where both new problems and new applications of trust are being studied.
Service-oriented expertise provisioning, social trust, User Interactions, privacy, Social media.
[1]. D. Schall, H.-L. Truong, and S. Dustdar, ―Unifying Human and Software Services in Web-Scale Collaborations,‖ IEEE Internet Computing, vol. 12, no. 3, pp. 62-68, May/June 2008.
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Sruthi A, Nithin S S, Parameshachari B D, Muruganatham C, H S DivakaraMurthy, S B Ershad |
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Bit Error Rate Reduction Using SLM in Reception of FRFD in OFDM Systems | ||||||||||||
DVB-T2 or DVB-NGH, are last and future generation wireless communication standards, for digital video broadcasting. They are using multiple-input multiple-output (MIMO) system in order to fully exploit the combine diversity and spatial multiplexing channel capacity. For this purpose Full-rate full-diversity (FRFD) space-time codes (STC) are used, but they presents high complexity and bit error rate in detection of received signals while using the list fixed complexity sphere decoding algorithm. Here a method is developed by using selective mapping (SLM) technique in order to further reduce the bit error rate in the reception of FRFD space frequency block codes (SFBC) in bit interleaved coded modulation (BICM) OFDM systems. Selective mapping technique, MIMO systems, space frequency block codes, Orthogonal frequency division multiplexing.
[1]. V. Tarokh, H. Jafarkhani, and A. Calderbank, "Space-time block codes from orthogonal designs," IEEE Trans. Inf. Theory, vol. 45, no. 5, pp. 1456–1467, 1999.
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C.Sheshavali, K.Niranjan kumar |
Design and Implementation of Vedic Multiplier |
In this paper, a novel multiplier architecture based on ROM approach using Vedic Mathematics is proposed. This multiplier's architecture is similar to that of a Constant Coefficient Multiplier (KCM). However, for KCM one input is to be fixed, while the proposed multiplier can multiply two variables. The proposed multiplier is implemented on a Cyclone III FPGA, compared with Array Multiplier and Urdhava Multiplier for both 8 bit and 16 bit cases and the results are presented. The proposed multiplier is 1.5 times faster than the other multipliers for 16x16 case and consumes only 76% area for 8x8 multiplier and 42% area for 16x16 multiplier.
KCM; Urdhava; Vedic Maths; Array Multiplier; FPGA.
[1]. Swami Bharati Krishna Tirthaji, Vedic Mathematics. Delhi: Motilal Banarsidass Publishers, 1965. [3]. Harpreet Singh Dhillon and Abhijit Mitra "A Digital Multiplier Architecture using Urdhava Tiryakbhyam Sutra oj Vedic Mathematics" IEEE conference Proceedings, 2008. |
AP Rammohan, Manjunath Swamy HM |
Home Made Electricity from Gas Stove |
Flame of the gas stove is the source of heat where only the upper surface of flame in contact with the vessel is utilized in conducting heat and the remaining part of the flame other than the upper region, surrounding the burner cannot be utilized for cooking. This heat is utilized in conversion of heat energy into electrical energy by "power cook from gas stove" product, Design and development of a "power cook from gas stove" product, based on seebeck effect principle, waste heat region of gas stove was done and experiment was carried out. Through the experiment, it was concluded that waste heat can be utilized by placing the product closer to the gas flame for better output, also we concluded that by increasing the temperature of heat absorber and decreasing the temperature of heat sink output voltage can be maximized. Hence the output is directly proportional to the heat absorber temperature and inversely proportional to the heat sink temperature together.
Electricity, Gas Stove, Seebeck Effect Principle, Thermoelectric Module, Waste Heat.
[1]. S Vikram Bhattacharjee, "Recovery of Dissipated Heat and its Reutilization by Simple Principle of Thermoelectricity - A Green Technology", International Journal of systems algorithms & applications, Vol-3, Issue ICRASE13, ISSN Online: 2277-2677, May 2013.
[2]. Riffat SB, Ma X. Thermoelectrics: A review of present and potential applications. Appl Therm Engg, Vol-23: 913-935, 2003. [3]. Rowe DM, Min G. Evaluation of thermoelectric modules for power generation. J Power Sources, Vol-73: 193-198.1998. [4]. Yodovard P, Khedari J, Hirunlabh J. "The potential of waste heat thermoelectric power generation from diesel cycle and gas turbine cogeneration plants", Energy Sources Vol-23: 213-224, 2001. [5]. Yadav A, Pipe KP, Shtein M. "Fiber-based flexible thermoelectric power generator", J Power Sources 2008; 175: 909-913.... |
S. Nagaraju, K. Sudarshan Reddy |
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A Reduction of harmonics at the Interface of Distribution and Transmission Systems by using Current Source active Power Filter |
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A current source converter (CSC) based shunt active power filter (APF) system is designed and implemented to suppress the amplification of low order harmonics at the medium voltage (MV) interface bus between the distribution and transmission systems. Four CSC based APF modules designed at 1.0 Kv are operated in parallel, and connected to the 31.5 kV MV bus via a specially designed coupling transformer. In each APF module, a specially designed LC-type input filter eliminates the switching ripples, and active damping method embedded into the control software suppresses harmonic frequencies around corner frequency of the input filter. The resulting system can operate at relatively high frequencies in the range from 2.0 to 3.0 kHz, depending upon which selected harmonics among 5th, 7th, 11th, and 13th are to be eliminated. Furthermore, in order to reduce the installed capacity of CSCs, selective harmonic amplification method (SHAM) is applied to the APF system described in the paper.
A Reduction of harmonics at the Interface of Distribution and Transmission Systems by using Current Source active Power Filter.
[1]. A. Terciyanli, M. Ermis, I. Cadirci, "A Selective Harmonic Amplification Method for Reduction of kVA Rating of Current Source Converters in Shunt Active Power Filters", IEEE Trans. on Power Delivery, vol.26, no.1, pp. 65-78, Jan. 2011.
[2]. J. R. Espinoza, G. Joos, "Current Source Converter On-Line Pattern Generator Switching Frequency Minimization," IEEE Trans. On Industrial Electronics, vol.44, pp. 198- 206, Apr. 1997. [3]. Y. Sato, T. Kataoka, "A Current-Type PWM Rectifier with Active Damping Function" IEEE Trans. On Ind. Appl., vol.32, no.3, pp. 533-541, 1996 [4]. IEEE Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems, IEEE Standard 519-1992.
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CH.Veeraiah, Y.Rambabu, V.K.R.Mohan Rao |
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Power Tapping Of Upgrade Transmission Line by Using Composite Ac-Dc Power Transmission Lines |
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Long extra high voltage (EHV) ac lines cannot be loaded to their thermal limits in order to keep sufficient margin against transient instability. With the scheme proposed in this paper, it is possible to load these lines very close to their thermal limits. The conductors are allowed to carry usual ac along with dc superimposed on it. The added dc power flow does not cause any transient instability. This paper gives the feasibility of converting a double circuit ac line into composite ac–dc power transmission line to get the advantages of parallel ac–dc transmission to improve stability and damping out oscillations. Simulation and experimental studies are carried out for the coordinated control as well as independent control of ac and dc power transmissions. No alterations of conductors, insulator strings, and towers of the original line are needed. Substantial gain in the load ability of the line is obtained. Master current controller senses ac current and regulates the dc current orders for converters online such that conductor current never exceeds its thermal limit.
Content- Based Image Retrieval (CBIR),Attention _ Scene perception ,Saliency map models ,Eye movements ,Fixation scanpaths.
SIMULINK simulation, simultaneous ac–dc power transmission, small power tapping.
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