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Improving Wireless Sensor Network Performance Using  BigData and Clustering Approach

Well-organized big data get together in the densely distributed sensor networks is, therefore, a challenging research area. One of the most effective solutions to address this challenge is to utilize the sink node’s mobility to facilitate the data gathering. While this technique can reduce energy consumption of the sensor nodes, the use of mobile sink presents additional Challenges such as determining the sink node’s trajectory and cluster formation prior to data collection. In this paper, we propose a new mobile sink routing and data gathering method through network clustering based on modified ExpectationMaximization (EM) technique. In addition, we derive an optimal number of clusters to minimize the energy consumption. The effectiveness of our proposal is verified through numerical results.

Dual Band Edge Serrated Microstrip Antenna on FR4  Substrate for L & S Band Applications

With the advancements in optical and satellite communications for high speed long range data transmissions, serrated antennas plays a vital role. In this work we have designed a Edge Serrated Microstrip Patch antenna used for these applications has been modeled on FR4 substrate as a dielectric medium which has a relative permittivity value of 4.4. The proposed antenna was resonating at two different frequencies in L & S band Microwave frequency ranges. This antenna was fed with coaxial feeding and was designed in a software HFSS.

Changing Land Use/ Land Cover Analysis in Pulwama  District of Jammu & Kashmir

Rapid and extensive modifications of land use /land cover due to accelerated human activities have been a major cause of global environmental change in the past three centuries. During the past 20 years, humans changed these landscapes to meet the growing demand for food, fodder, timber, fiber and fuel more rapidly and extensively than in any comparable period of time.

Printed Hexagonal Patch Monopole Antenna with  Hexagonal Slot for Wide Band Frequency Applications

In this paper a hexagonal patch microstrip antenna with hexagonal slot behaves as a wide band monopole antenna having great return loss. It is designed for 1.1194-2.7078 GHz frequency band with wide bandwidth of 1.5884 GHz and return loss of - 73.63dB. A hexagonal patch with etched ground plane monopole antenna with hexagonal Slot is fabricated on the glass epoxy (FR4 lossy) of dielectric substrate with relative permittivity (εr) of 4.3, thickness of 1.6mm, loss tangent of 0.02 with a ground plane, fed with a 50Ω rectangular microstrip feed line. This prototype antenna having an omnidirectional radiation pattern is measured for frequency range of 0-3 GHz. The novelty of this antenna is that hexagonal patch with hexagonal slot gives it uniqueness in design and also getting a bandwidth approx 1.6 GHz with -73dB Return loss is big achievement in 0-3 GHz frequency Band itself. As the antenna is designed only in 0- 3GHz band, having all such properties in one antenna p

Cheap Camper Trailers Victoria

Westcott Campers offer victorian camper trailers in Dandenong South, VIC. We offer full power coated finished camper trailers with aluminum cover. You can find here all detail related to camper trailers.

Why is there demand for rental vehicles

In Singapore, there is a huge demand for rental vehicles in most other places around the world? What makes rental vehicles so popular? Renting a car is the easiest and most comfortable way to travel around Singapore. Buses and trains cover almost all major places in the country but the wait time is not something that you will love when you are on a leisure or business trip.

Status of Terrestrial and Wetland Birds in Kawardha,  Kabirdham District in Chhattisgarh, India

Birds as best indicators of wetland function or as measures of success in wetland management, restoration and creation. This study was conducted during Jan to March 2014; totally 09 selected wetlands were surveyed in Kawardha, Kabirdham District of Chhattisgarh. Species diversity and dominance of birds were calculated. Totally 64 birds belonging to 36 families were recorded, out of these 64 species 35 water birds and 29 terrestrial bird species. Maximum diversity of birds was recorded in Sutiyapath dam. Bird abundance and vegetation cover were recorded. The highest numbers of birds were recorded in Chhirbandha lake (21) followed by Sutiyapath dam (19), Sarodha dam (15) and Lalpur Nursery (13). Three near threatened species, namely Threatened Egyptian vulture, Indian Black Ibis and Oriental White Ibis were recorded. In most of the wetlands Ipomea carnea (15.28 %) was the dominant species. This pond has abundant maximum occasionally birds and maximum number of birds.

Solid Waste Disposal Site Selection for Kandy District,  Sri Lanka Integrating GIS and Risk Assessme

Open dumping is the most common method of solid waste disposal in many developing countries including Sri Lankan urban areas. Appropriate landfill site selection is important to minimize negative impacts associated with open dump sites. Landfill siting is an extremely difficult task to accomplish due to strong public opposition and regulations. Developing countries do not have a systematic process for landfill site selection and hence unsuccessful landfill siting leading to environmental degradation is typically the result especially in the developing world. Data were collected from Kandy district, Sri Lanka. Both GIS analysis and semi quantitative risk assessment were used and eight map layers such as surface water bodies, distance from transportation routes and urban areas, land use/land cover, soil, rainfall, population density, elevation were utilized. ArcGIS 9.3 software and its extensions were used as the GIS tool since it is able to perform suitability analysis usi

Deck builders
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Other that only making a area for enjoyable your dearly loved party guests and designs, introducing an outdoor terrace cover from the exteriors of your dwelling certainly boosts the buying price of your own home, is it best to have you ever contemplate supplying it. Likewise residences featuring increased exterior units being a kitchen space, fireplace dish, tv set accompanied by a reasonably huge resting vicinity which may deal with office chairs, couches and lounges to make the customers along with the people in home, even though would-be residential home potential customers are time seeking houses while not only one protected veranda.

Wedding Bands World Now Offers Two Tone Wedding Band in Different Metals

Wedding Bands World designs and manufactures an exquisite selection of platinum, gold and Palladium wedding rings and wedding bands.

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