Archives-June...  

We are very happy to announce that from 4th June 2016, Mr. Vikram G Kamble has joined the team of Elixir Editorial Advisory Board. He/She will carry a special responsibility for dealing with manuscripts based on Mechanical Science. Mr. Vikram G Kamble working as Researcher in the field of Fluid Dynamics and Rheology. The appointment of Mr. Vikram G Kamble as member Editorial Advisory Board strengthens the links and will make it easier for prospective authors to establish contact with the journal.

We are very happy to announce that from 7th April 2015, Mr.Ali Dorri has joined the team of Elixir Editorial Advisory Board. He will carry a special responsibility for dealing with manuscripts based on Wireless Communications and Routing Protocols. Mr.Ali Dorri currently working as Department of Computer Engineering, Mashhad Branch, Islamic Azad University, Mashhad, Iran. The appointment of Mr.Ali Dorri as member Editorial Advisory Board strengthens the links and will make it easier for prospective authors to establish contact with the journal.

About 15mol% of ZrOCl₂.8H₂O in ethanol has been found to be an efficient catalyst for the multi-component synthesis of dihydro-1H-Indeno [1,2-b] pyridines by the reaction between 1,3-indandione, ethylacetoacetate, aromatic aldehyde and ammonium acetate at reflux condition. Atom economy, excellent yields, simple workup and mild reaction conditions are some of the important features of this method.

Organochlorine pesticides (OCPs) were determined in twenty (20) pineapple and cocktail fruit juice of eight (8) brands collected from various markets in the Greater Accra Region, Ghana. Each brand was replicated thrice or twice based on diffrrent batch number. A survey was conducted to ascertain farmers view on organochlorine pesticides and pesticide/insecticide used during pineapple and mango production. Fruit juice samples were also analysed to investigate pesticide residue levels in them. Fruit juice samples were analysed by gas chromatography prepared with electron capture detector for organochlorines. Thirty (30) mango and twenty-five (25) pineapple farmers interviewed used pyrethroid based pesticides in controlling insect pest on their farm.Aldrin (0.007 ± 0.004 mg/kg), Dieldrin (0.001 ± 0.003 mg/kg), Endrin (0.0004 ± 0.001 mg/kg) cis heptachlor (0.000001 ± 0 mg/kg), Heptachlor (0.09 ± 0.088 mg/kg), trans heptachlor (0.0003 ± 0.001 mg/kg), trans_nonachlor (0.003 ± 0.004 mg/kg), alpha_HCH (0.002 ± 0.001 mg/kg), beta_HCH (0.000001 ± 0 mg/kg), delta_HCH (0.007 ± 0.008 mg/kg), gamma_HCH (0.003 ± 0.006 mg/kg), cis chlordane (0.000001±0 mg/kg), Hexachlorobenzene (0.0008 ± 0.001 mg/kg), o_p_DDD (0.00024 ± 0.001 mg/kg), p_p_DDD (0.005 ± 0.007 mg/kg) o_p_DDE (0.000001 ± 0 mg/kg), p_p_DDE (0.0006 ± 0.001 mg/kg), o_p_DDT (0.0009 ± 0.001 mg/kg), and p_p_DDT (0.0003 ± 0.001 mg/kg) were present in all the samples collected. The observations made on this studies, suggest that, effective regulations guiding the use of pesticides on fruits should be enforced and regular checks of pesticide residues in freshly consumed products.

Harmonic currents or voltages are generated from a non-linear load when it is connected to the mains supply. The problems caused by harmonic include overheating of cables, especially the neutral conductor, overheating and vibration in induction motors and increased losses in transformers. In this paper, the details analysis of harmonics effect on a 1KVA transformer is analyzed. A frequency oscillator source is used for generating the harmonics signal on the transformer. The total harmonic distortion, crest factor and K-factor are analyzed by using a Fluke-435 power analyzer.

The aim of this study was to develop methodology for estimating whether existing system can perform as lean, agile, or leagile manufacturing system. We compared and identified the supply between leanness and agility, before developing leagility, by identifying the manufacturing features particularly affected by interdependent variables by preparing based on the conditions that improved solutions to manufacturing practical operations in three case studies. This study measured the available factors to build a model based on AHP, sent factories to acquire the responses. Acquiring precise results may require more tests in more highly developed conditions in improved systems with certain locations.

Hazards is a situation that posses a level of threat to life, health, property or environment. Any real or potential conditions produced by industries that can cause injury or death to personnel or loss of product or property. Industrial hazards is a major issue in present scenario. Some industrial plants, by the nature of their activities and the substances they use, constitute hazards which are all the greater when they are located close to residential areas for these and their residents are particularly exposed in the events for accidents. Industrial hazards may be defined as the contamination of the Pharmaceutical industries that may cause irritation, toxicity and damage of the product, which are also harmful for product quality in the Pharmaceutical Manufacturing.

In this paper we presents a method for handling multiple metrics and different network parameters simultaneously to analyze the loss factor of routing protocols in mobile ad hoc network(MANET) environments. We have used Taguchi’ loss function to determine the best parameters giving maximum throughput, packet delivery ratio (PDR), average delay, DROP and routing over head simultaneously for AODV protocol. In this paper we have consider various different mobile ad hoc network parameters such as Terrain size, No of Nodes, No of source nodes, Packet transmission rate, Node speed, Pause time, Transmission range, Queue size, Antenna height and receiving power on a multiple signal to noise ratio (MNSR), performance and contribution level of parameters have been analyzed by analysis of variance (ANOVA). The analysis of results shows that the parameters which more affecting the AODV performance in mobile ad hoc networks are Queue size, Receiving power, Source node, Packet transmission rate, Antenna height and transmission range.

Bacteriocin production and activities potentials of lactic acid bacteria (LAB) isolated from traditional fermented foods (“Ugba”, pap, fermented cassava and ‘Kunu zaki’) were studied. Serial dilution of each of the samples was performed and 0.1ml of appropriate dilution was streaked on De Man Rogosa Sharpe (MRS) agar containing 50mg of nystatin for the isolation of LAB. Forty five LAB isolates were recovered from samples and were screened for bacteriocin production by the Agar Well Diffusion assay and two best bacteriocin producers characterized by molecular method as Lactobacillus tucceti CECT 5920 and Lactobacillus mindensis TMW were tested for their biotechnological potentials. Staphylococcus aureus NCTC 8325 and Escherichia coli 0157:H7 cultures were used as test pathogens. L. tucceti CECT 5920 and L. mindensis had the same level of bacteriocin production and antimicrobial activity (P<0.05). Temperature had more effect on bacteriocin activity on L. tucceti CECT 5920 against S. aureus NCTC 8325 and E. coli 0157:H7 while pH had same effects on both LAB isolates and pathogens. Both LAB isolates had highest effect from NaCl against E. coli 0157:H7 at 0.2% concentration. Crude bacteriocin samples treated with pepsin had no sensitivity against the test pathogens. Storage had decreasing effect on bacteriocin activity from both LAB isolates. L. tucceti CECT 5920 was sensitive to Cotrimoxazole while L mindensis TMW was resistant to all the antibiotics tested. L. tucceti CECT 5920 gave better results in all the biotechnological potentials tested, thus, the two LAB isolates may perform well in industrial processes. Key words: Activity, bacteriocin, fermented foods, lactic acid bacteria, pathogens.

An experimental investigation of applying a magnetic field and a radiation source horizontally with the direction of alloy once and vertically in another, current range passing through alloy is (1-3) AMP. The increase in temperature will lead to reduce electrical conductivity. The increase in input power causes an increase in output power. The increasing in magnetic field intensity will increase alloy efficiency. The increase in radiation time will increase alloy efficiency. The increase in magnetic field intensity in the presence of radiation will increase the alloy efficiency.