Archives-December  

A Broadband multilayer antenna for C-Band applications is presented in this paper. The proposed antenna is composed of a FR-4 and air gap Dielectric material, two square slots, two L-Slot, and a Radom. By introducing the two parts, the impedance bandwidth of the antenna can be significantly enhanced. Analysis done with and without ground plane. Simulation results show that the proposed antenna can operate from 3.2GHz to 4.8 GHz with low VSWRs ? 2. Stable antenna gain (dB) is also achieved over the entire operating frequency band. Furthermore, the size of the proposed antenna is very compact, which is only at the centre of the operating frequency band.

In this paper we will illustrate a new type of graph which its vertices are different and discuss each type of this graph and illustrate different example for each type. The representation of this graph by matrices will be obtained. Also we will discuss the folding of this new type.

The Pathologic fractures usually occur during normal activity or minor trauma due to weakening of the bone by disease .The clinical features was minor injury force, spontaneous fracture, and functional fracture. These fractures occurred in giant cell tumors, chondroma, solitary fibrous tumor of bone, aneurismal cyst, fibroma desmoplastic, fibrous dysplasis, osteoid osteoma in patients with no story of trauma. The surgical treatment consisted to curette the tumor bone and the fixation was made by different materials (nails, pins, blade plates) followed by cancellous grafting or resection-reconstruction. Six months later, we noted only one case of recurrence in giant cell tumor of the knee and was amputed. All patients were consolidated and the functional long term prognosis was excellent after physiotherapy

The mango plays an important part in the diet and cuisine of many diverse cultures. During the processing of ripe mango, the waste (peel and seed) is a problem. As seed kernel is not currently utilized for any commercial purposes, it is discarded as a waste and becomes a source of pollution. This waste should be treated as a specialized residue due to the high levels of phenol compounds and stable fat rich in saturated fatty acids. Hence the investigator incorporated MKP in sponge cakes in order to utilize the health benefits from it. The physico chemical properties were comparatively favorable than the unincorporated sponge cakes, which may favour extension of shelf life in sponge cakes. The sensory scores for acceptability of incorporated sponge cake were found higher with MKP upto 20g than the other incorporations.

Kas area as a part of the “Sahydri Sub-cluster” has been declared as the World Natural Heritage Site list of the UNESCO-IUCN. Considering this it is essential to document the existing diversity of various life forms of this area. The present checklist of fungal flora of Kas is an attempt to unravel the unexplored and hidden fungal wealth. Kas is the high level ferricrete surrounded by dense stunted semi-evergreen forests which harbors myriad fungal diversity. The checklist gives the preliminary count of fungal diversity from Kas and surrounding areas. An intensive search of literature records is reported which shows 53 species of fungi and lichens belongs to 23 families and 31 genera. The present checklist of fungi from Kas and surrounding is a value addition in the floristic study of the world natural heritage sites.

We are very happy to announce that from 6th August 2011, Prof. Feng Ping has joined the team of Elixir Editorial Advisory Board. He will carry a special responsibility for dealing with manuscripts based on Infectious Disease. Prof. Feng Ping is currently working as Vice Director, at Department of Infectious Disease of West China Hospital, Sichuan University, P.R. China. The appointment of Prof. Feng Ping as member Editorial Advisory Board strengthens the links and will make it easier for prospective authors to establish contact with the journal. Please send any expressions of interest to chiefeditor@elixirjournal.org. Sincerely Editor-in-Chief

This project provides information about energy system by the use of bio gas... Biogas contains primarily CH4 with the balance being mostly CO2 and a small amount of trace components. Now a day’s alternate fuel appears during possessions, by better understanding its components, biogas can be processed and utilized in a more efficient, cost-effective way because of reducing fuel cost, demand of fuel, and emission influence in global warming. The most important of this work is, to produce bio gas from organic waste and reduce the usage of petrol fuel. The increase in population leads to depletion of diesel fuel. Another reason is instead of disposing the organic waste in landfill, this can be converted into a useful product (bio-gas). The bio gas can be stored in a cylinder and be placed in a luggage side box of a vehicle. A regulator is fixed on the top of the cylinder. A hose tube from a vacuum kit which is placed beneath the seat is fixed to the cylinder, so that the gas can be passed to the carburetor. The needle of the carburetor is taken out and the gas would pass on the engine directly. The air filter is partially closed in the vehicle. On kicking the bio gas from the cylinder easily pass on from vacuum gas kit to engine. A spark plug which is above the engine is used to burn the biogas. In this manner, bio gas can be used run the vehicle. The pickup and efficiency is more comparing the existing system of the vehicle has not been reduced by using bio gas. A two Stroke Petrol engine is used for this project, 2 Kg Cylinder is used. It gives 110 kilo meter for one liter of bio gas. So that it can be used in the presented vehicle without any modification. So, the compression ratio of the engine is also high 15:1 Due to high compression ratio power developed by the engine is also high. By less consumption of the fuel, the power produced is more. Petrol produces more toxic gases like HC, CO etc...But we find that methane is less toxic, and emission is very less eco-friendly compare to petrol. It makes “GREEN EVOLUTION”.

In the present study fulvic acids (FAs) were first isolated from fulvic water (FW) and fulvic urea (SU) and then their quantification was accomplished by spectrophotometric methods. Aqueous solutions of FAs, FW and SU were made at pH 7.0 in the visible wavelength region at 25 oC using calibration curve method. Plot of absorbance Vs concentration of FAs at fixed wavelength (424 nm) was linear up to 120 mg L-1. The calculated FAs concentrations were in reasonable agreement with the gravimetric estimation made by solvent extraction.

In a mobile ad hoc network, the mobility and resource constraints of mobile nodes may lead to network partitioning or performance degradation. Several data replication techniques have been proposed to minimize performance degradation. Most of them assume that all mobile nodes collaborate fully in terms of sharing their memory space. In reality, however, some nodes may selfishly decide only to cooperate partially, or not at all, with other nodes. These selfish nodes could then reduce the overall data accessibility in the network. In this paper, the impact of selfish nodes in a mobile ad hoc network from the perspective of replica allocation is examined. A selfish node detection algorithm was developed that considers partial selfishness and novel replica allocation techniques to properly cope with selfish replica allocation. The conducted simulations demonstrate the proposed approach outperforms traditional cooperative replica allocation techniques in terms of data accessibility, communication cost and average query delay.

Two thousand three hundred and seven fish specimens sampled from Nwaniba (Ikpa River) for 12 calendar months (March 2009 – February 2010) comprised 11 orders, 34 families, 59 genera and 136 species. There was temporal and seasonal significant differences (P<0.05) between number and species of fish caught. The mean annual Index of Preponderance (IP %) values ranged from 0.01 in Brienomyrus brachyistus and Periophthalmus barbarus to 4.24% in Oreochromis niloticus. Mean monthly occurrence shows highest in August (536; 23.23%) and lowest in June (47; 2.03%). The contributions of the fish orders in theirdescending order of abundance are as follow: Siluriformes (1072; 46.47%), Ophiocephaliformes (626; 27.13%), Characiformes (264; 11.44%), Mormyriformes (159; 6.89%), Clupeiformes (87; 3.77%), Cypriniformes (40; 1.73%), Gonorhynchiformes (33; 1.43%), Osteoglossiformes (13; 0.56%), Elopiformes (9; 0.39%), Pleuronectiformes (3; 0.13%) and Perciformes (1; 0.04%). The most abundant family and species in terms of number are Schilbeidae (646; 28.00%) and Parailia pellucida (577; 25.01%) while the least are Scaenidae, Soleidae and Sphyraenidae (1; 0.04%). The most abundant family in terms of species is Mormyridae (17) and the least are 9 families with only species. Relative abundance is higher during the wet season (105 species; 77.77%) than dry season (93 species; 68.88%). The largest fish size in terms of length is recorded in Chrysichthys aluuensis (45.60cmTLmax; 18.40±9.0cm) while the smallest individual is Parailia pellucida (1.10cmTLmin; 7.50±1.20cm). The overall weightiest fish is also Mugil cephalus with a total weight of 662.80gWTmax; 54.42±16.75 while the lightest individuals are Parailia pellucida and Eutropius buffei (1.00gTWmin). Previous results differ from these; which may be occasioned by the human anthropogenic perturbations which are on-going in the river system, thus leading to environmental degradation. Hence, recommendations are proffered.