Cluster Based File System (A Review)

Abstract: 

With a growth in the size of internet users and other big-data-reliant applications, the need for fault tolerant file systems that can provide concurrent and redundant access to file is growing.The Access, location, concurrency and failure transparency provide by cluster based file systems has inspired many big data users like Google and Oracle to adopt cluster based file systems. The heterogeneity and transparency provided by such systems also dampens expansion and managerial costs,however the management of such systems is not tribal.
Cluster based file systems often require complex operations to ensure synchronicity and concurrency control within the cluster.The immense distributed management of cluster also creates a performance overhead especially when involving remote requests. cluster based systems are thus challenged to provide the seemingly redundant and resilient operation rooted in their architectures while not compromising on performance,security and other functionality metrics.Thus review will focus on the strategies adopted in the optional deployment of cluster based file systems and the schemes used in some of them to overcome some of the challenges faced by cluster based systems. The review will focus on file clustered file clustered file systems (Hadoop file systems, lustre, Gluster file systems,Caph, Moose file system and Quick file systems). These systems were selected based on their recentness. Additionally,servers like Hadoop are being used by industry leaders like Yahoo and Facebook and hence more prone to rigorous standardization.The survey will review them based on their Architectures, Naming method, Replication mechanism and fault management and detection mechanism.

ISSN: 
2476-8316

NATURE OF HYDROGEOLOGY, WATER SUPPLY AND THE ROLE OF WOMEN IN THE MANAGEMENT OF WATER IN URBAN AND PERI-URBAN KANO, NIGERIA

Abstract: 

The study examined nature of hydrogeology and role of gender in water supply in parts of Kano Metropolis and its immediate surroundings. Five local government areas were randomly selected through balloting process from Urban and Peri-Urban Kano. In each of the selected local government areas two sampling site were selected. Data on number of bore holes, open wells, taps and other sources of water supply were collected through field observation. Responses on sources of water supply, water storage, water management, water usage, water supply and role of women, water and family size were collected through interview. Nature of hydrogeology was obtained through reclassifying hydrogeological map of the study areas in GIS environment. Water table was obtained through pumping test records of existing boreholes in the areas. Findings of the research shows that borehole is the major source of drinking water with a total of 83 (27.6%) followed by open well with 69 (23%) and Tap and well with least 4 (1.3%). It can be seen that Hotoron Masallaci with Dior Granite has the highest number of bore holes 18 and open well 7 and a water table of about 506 – 560m. Lambu has 15 boreholes and 7 wells and is with coarse pink and Black granite and water table of 456 – 507m. It can be observed that Rijiyar Lemo with 3 boreholes and 2 wells and Kurnar Asabe with 3 boreholes and 9 wells are all having Pink and white granites which signifies low ground water and high water table values of 666 – 717m. It is deduced that 92% of the respondents store their water in drums. It was established that there is significant differences with regards to water storage among the study locations. Result also shows that water management is mostly controlled by women. It shows that 92% uses water for cooking. It is proved that 57% of the respondents said water availability rest with women, 45% by men and 3% by children. It is established that groundwater availability is associated with nature of hydrogeology and this significantly affect role of women in water supply. It is recommended that Government and stakeholders should development of a well-designed project for integrated water supply in the areas of low water table.

ISSN: 
2476-8316

PERFORMANCE AND FAILURE OF SOLAR BOREHOLES FOR WATER SUPPLY IN KUMBOTSO LOCAL GOVERNMENT AREA KANO STATE, NIGERIA

Abstract: 

Assessment for the performance and failure of solar boreholes was undertaken in Kumbotso local government area of Kano state. This is in line with frequent failures of solar boreholes for effective water supply in the study area. Seven wards were selected for the study. Sample of 151 respondents were interviewed. Data was collected through field observation, use check list, interview and focus group discussion. The data was analyzed using simple statistics such as totals, means, standard deviation and percentages. Likert scale of measurement was also applied in analyzing the responses on performance, failure and level of utilization of boreholes. Student’s ‘t’ test was used to find out whether there is significant difference or not between functioning and nonfunctioning borehole in the study area. Chi-square test was also use in the analysis of problems and solutions. Result shows that there are 26 solar boreholes out of which 11 are functioning and 15 are not functioning it is established that there is significant difference among the eight study wards in terms of functioning and non-functioning solar boreholes at 0.05 level of significant. It indicates that 68 (46%) of the respondents said community members are the major stake holders. The result shows that most of the parameters are fairly satisfactory with means of 0.50 – 1.27. Result also shows that computed means of all the problems facing water supply trough solar boreholes are below the Likert scale of satisfaction of 2.80 – 3.42 and there is no significant association among the problems affecting solar boreholes performance for water supply in the study areas at 0.05 level of significant. Findings shows that provision of full security as a major solution to the problem of solar boreholes performance for water supply with 55 responses (36.45%). Result shows that there is no significant association among the major solutions to the problems. With particular reference to findings of the research it is recommended among other issues that adequate security should be provided to prevent solar panels, sumo and other important components from being stolen for effective performance and water supply.

ISSN: 
2476-8316

A REVIEW OF NATURAL PRODUCTS CHEMISTRY-THEIR DISTRIBUTION, EFFECTS AND USAGE TO MAN

Abstract: 

Natural products are naturally occurring compounds that are end products of primary metabolites; often they are unique compounds for particular organisms. They are non-nutritive plant chemicals that have protective or disease preventive properties. They are nonessential nutrients, meaning that they are not required by the human body for sustaining life. The most important of these phytochemicals (secondary metabolites) are alkaloids, tannins, saponins, steroids, flavanoids, terpenoid and cardiac glycosides. Their important physiological effects on humans and other animals are reviewed.
Keywords: Natural products, uses, phytochemicals, man and chemistry.

ISSN: 
2476-8316

RADIOLOGICAL SAFETY ASSESSMENT OF SOIL SAMPLES FROM SOME WASTE DUMPSITES IN KANO METROPOLIS

Abstract: 

Investigations were carried out to determine the presence of natural radionuclides in some selected dumpsites and evaluate the hazards these may have on the people living around the locations in Kano metropolis, Nigeria. Gamma-ray spectrometry with [NaI(Tl)] detector (Canberra, model 727) at the Centre for Energy Research and Training, Ahmadu Bello University Zaria, Nigeria, was used to determine the concentrations of radionuclides in the soil samples randomly collected from study area. The results show that activities of 40K ranges from 242.15 to 697.51 Bq/kg, 226Ra ranges from 12.75 to 57.24 Bq/kg and that of 232Th ranges from 20.57 to 128.51 Bq/kg in all the analyzed samples. However, the results show that, the average value of 453.19Bq/kg of the activity concentration of 40K found in this study has exceeded the world average value of 400Bq/kg, and there was a higher activity concentration of232Th at all the dumpsites. The average values for radium equivalent, external index, internal index and gamma level index were 148.4Bq/kg, 0.401, 0.460 and 0.544 respectively in all the samples are lower than the suggested maximal admissible value of 370Bq/kg, 1,1 and 1 respectively. The average value of the absorbed gamma dose rates to gamma radiations is 67.84(nGy/h) for the samples, which was higher than the recommended world average value of 60 (nGy/h). However, the average annual effective dose was 0.028 (mSv/y) in the samples, and were lower than the world average 0.07 (mSv/y).

ISSN: 
2476-8316

INCIDENCE OF PHYTOPHTHORA INFESTANT THE IRISH POTATO FAMINE FUNGI AT YANKABA MARKET

Abstract: 

Study was carried out to determine the fungal pathogens responsible for post-harvest losses of potato (Solanum tuberosum) on sale at Yankaba market. The investigation period lasted for five month between September, 2015 to January, 2016. Potato samples were collected and analyzed for the presence of fungal species using standard methods. Fungal infection at Yankaba markets were found mostly to be due to Phytophthora infestant 20 (33.3%}, Alternaria solani 15(25%), Aspergillus niger 6(10%), Rhizopus stolonifer 9(1.58%), and Mucor spp 10 (16.7%). Although more colonies were recorded on Monday 28(46.7%) than Thursday exposure with 32 (53.3%) but the differences was not statistically significant (P>0.05) between the two sampling dates. This showed that date of sampling has no effect on the isolation of fungal colonies. However, the results of this study showed that fungal pathogens play a significant role in post-harvest loss of the potato at Yankaba market

ISSN: 
2476-8316

SEGMENTATION AND RECOGNITION OF NIGERIAN LICENSE PLATE USING BOUNDING BOX AND TEMPLATE MATCHING

Abstract: 

The Number Plate Recognition (NPR) is a system designed to help in recognition of the character written on the number plates of vehicles. Before the recognition, a number plate has to be segmented. Segmentation is a process of partitioning digital images into multiple segments. In this work
thresholding of pixels values and Bounding Box were used for the segmentation. The recognition algorithm compares each individual character against the complete alphanumeric set using template matching. The matching process moves the template image to all possible positions in a larger source image and computes a numerical index that indicates how well the template matches the image in that position. Before the Segmentation and Recognition algorithm is applied, the License must be localized correctly using localization algorithm.

ISSN: 
2476-8316

EFFECTS OF HEAT TREATMENT ON PROXIMATE COMPOSITION OF WATER MELON SEED (Citrullus lanatus) FOR POSSIBLE UTILIZATION IN FISH FEED FORMULATION

Abstract: 

This study examines the effect of heat treatment on the proximate composition of watermelon seed (Citrullus lanatus) using varied period of time for toasting (0, 20, 40 and 60 mins) respectively at a constant temperature of 1200c. The proximate composition of the seed toasted for 0 min (raw) showed that the seed had moisture content of 11.40%, Crude protein content of 20.50%, Fat content of 16.60%, Ash content of 0.74%, and Total Carbohydrate of 51.96%. Seed toasted for 20min showed that the seed had

ISSN: 
2476-8316

FISH SMOKING EFFICIENCY OF TRADITIONAL SMOKING KILN (OPEN DRUM) AND FUTY IMPROVED PROCESSORS (OVEN

Abstract: 

The rate at which dryness occurred in fish varies considerably with these processors. Fish species preserved were Clarias, Heterobranchus, Synodontis, Tilapia and Hydrocynus species (whole, split and cut). Traditional Smoking kiln (open drum) and Federal University of Technology Yola (FUTY improved processors), were used. Firewood and sawdust were used as source of smoke and heat to the fish in an open drum processor and charcoal were used as source of heat to the fish in the FUTY improved processor (oven) at a time interval of two hours in three different occasions after which, weight loss was measured. Fish products appeared charred and burnt in an open drum kiln with a shorter shelf life due to excessive (uncontrolled) heat supply. In the ovens (FUTY Improved processor), the rate of dehydration was slow. However, fish products appeared golden brown making it attractive to the consumers. This was due to the even distribution of heat in the processor. Therefore, there is significance difference (p > 0.05) between traditional smoking kiln and FUTY improved processor (oven).

ISSN: 
2476-8316

Integrated Network Architecture for Seamless Heterogeneous Social Media Platforms

Abstract: 

Nowadays, one of the fastest ways of connecting people with old friends is through the social media network platforms (SMNPs) which have greatly influenced the way people communicate. This has continued to receive acceptance among all age groups and still growing, opening yet another area of research that explore large data of both social and behavioural context. The heterogeneity of these SMNPs has further brought innovations in developing applications for integrating resources in offering seamless services among the various SMNPs. The aim of this paper is to integrate data from social relationships by proposing a heterogeneous point-to-point architecture that seamlessly integrates various SMNPs. A Globally Integrated Relationship Linkage (GIRL) model is proposed in this architecture to test the strength of relationships existing between various SMNP users. The model lead to the development of a search mechanism (i-Navigate) for finding the optimal social linkage among users of same connection in heterogeneous SMNPs. The paper try to evaluate the performance of the mechanism and show its effectiveness in supporting different application metrics of integrated content-sharing which will make developers of SMNP design effective user-driven SMNP applications.

ISSN: 
2476-8316

Pages