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Search Results: 1 - 10 of 7216 matches for " Muhammad Abubakar "
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Xilinx System Generator® Based Implementation of a Novel Method of Extraction of Nonstationary Sinusoids  [PDF]
Muhammad Abubakar, Arshad Aziz, Pervez Akhtar
Journal of Signal and Information Processing (JSIP) , 2013, DOI: 10.4236/jsip.2013.43B002
Abstract:

Model based implementation of a novel nonlinear adaptive filter for extraction of time varying sinusoids using Xilinx system generator has been presented in this work. The practicality of this filter model along with its performance makes it one of the foremost candidates to be applied on nonlinear systems for the purpose of estimation and extraction using reconfigurable hardware like FPGA. A design implementation and verification approach has been discussed for more efficient implementation. Timing and power analysis has been performed and the architecture has been optimized for speed and power to perform at higher frequency when integrated on a Xilinx FPGA. The proposed hardware oriented architecture has been successfully implemented and simulated. The simulation results to track a noisy input have also been shown to demonstrate the exceptional performance of the hardware based architecture developed.

Influence of Supplemental Methionine on Growth Performance of Uda Lambs in a Semi-Arid Environment
N Muhammad, AA Abubakar
International Journal of Applied Agriculture and Apiculture Research , 2012,
Abstract: A twelve week feeding trial was conducted to determine the effect of supplementing methionine on growth performance of lambs. A total of twelve growing lambs were randomly allocated to three dietary treatments containing graded methionine levels in a completely randomised experimental design. The animals were fed diets containing 0 (control), 2 and 4g/kg methionine. Results indicated significant differences (P<0.05) between treatment means in terms of feed intake and live weight changes. Animals fed diets containing 2g/ kg methionine were better (P <0.05) compared to other treatments in terms of feed intake and growth performance. It was concluded that 2g/kg methionine gave the optimum performance.
A Study of Region-Based and Contourbased Image Segmentation
Fari Muhammad Abubakar
Signal & Image Processing , 2013,
Abstract: In computer vision, segmentation refers to the process of partitioning a digital image into multiplesegments (sets of pixels, also known as super-pixels). This paper attempts to undertake a study of twocategories of image segmentation which are Contour- Base and Region-Base. In the first category,Contour- Based image segmentation, the study is on some edge detection techniques which include Sobel,Canny and Robert Cross edge detection techniques and for the Region- based image segmentation, thestudy is on image thresholding. These two categories of image segmentation will be performed usingMATLAB Version 7.12.0.635 (R2011a) and the experimental results obtained are discussed
Bovine Brucellosis: Old and New Concepts with Pakistan Perspective
Muhammad Abubakar*, Mehwish Mansoor and Muhammad Javed Arshed
Pakistan Veterinary Journal , 2012,
Abstract: Brucellosis is considered to be one of the most widespread zoonoses in the world. According to OIE, it is the second most important zoonotic disease in the world after rabies. The disease affects cattle, swine, sheep, goats, camels and dogs. It may also infect other ruminants and marine mammals. The disease is manifested by late term abortions, weak calves, still births, infertility and characteristic lesions are primarily placentitis, epididymitis and orchitis. The organism is excreted in uterine discharges and milk. The disease is economically important, is one of the most devastating transboundary animal diseases and also a major trade barrier. Although not yet reported, some species of Brucella (e.g., B. abortus) are zoonotic and could be used as bioweapons. Brucellosis has a considerable impact on animal and human health, as well as wide socio-economic impacts, especially in countries in which rural income relies largely on livestock breeding and dairy products. Considering the poor health infrastructure and manpower in rural areas, the focus should be on preventive measures coupled with strengthening the curative health care services for early diagnosis and treatment. The incidence of brucellosis is increasing particularly in large dairy herds in Pakistan. Several studies have been conducted using sero-diagnostic techniques to determine the prevalence of brucellosis in different provinces, districts and livestock farms in government and private sector.
Design and Power Flow Analysis of Electrical System Using Electrical Transient and Program Software  [PDF]
Raheel Muzzammel, Ibrahim Khail, Muhammad Huzaifa Tariq, Abubakar Muhammad Asghar, Ali Hassan
Energy and Power Engineering (EPE) , 2019, DOI: 10.4236/epe.2019.114011
Abstract: Power flow analysis is a numerical way of study of behavior of flow of electric power in an interconnected system. In order to meet the growing demands of electrical energy in an optimum way, there is a need to upgrade existing systems or to install new systems. Therefore, planning of new installations and determination of best operating conditions of existing systems need power flow analysis. In this way, cost/benefit ratio for both suppliers and customers is maintained. This research involves the design and power flow analysis of IEEE-14 bus system. Newton Raphson method is applied for better efficiency and reduced computational time. Simulation analysis is conducted in ETAP software because of its excessive used in real life systems.
Profile of Amputations in National Orthopaedic Hospital, Dala, Kano  [PDF]
Abdurrahman Alhaji Mamuda, Muhammad Nuhu Salihu, Muhammad Kabir Abubakar, Kabir Musa Adamu, Mustapha Ibrahim, Muhammad Ujudud Musa
Open Journal of Orthopedics (OJO) , 2014, DOI: 10.4236/ojo.2014.48033
Abstract: Introduction: Amputation is the removal of a body part through a bone, while disarticulation is a removal of a part through a joint. This common procedure has different causes depending on the geographical locations and cultural practices. These ranges from dead body part to malignancy. Our study focused on the profile of the amputees including the biodata, causes and the financial consequences of the procedure. Material and Methods: The case notes of all patients who had amputation from 1998-2012 (15 years) were collected and the biodata, intra-operative diagnosis, parts amputated and duration of hospital stay were retrospectively analysed. Results: One hundred and ninety six patients had various types of amputations for the duration of our study. 159 (81.12%) were males while 37 (18.88%) were females. 68 (34.69%) patients had below knee amputation. 54 (27.55%) had above knee amputation. 27 (13.78%) had above elbow amputation. 18 (9.18%) patients had below elbow amputation, while 30 (15.30%) patients had other forms of amputations. The highest number of amputees (72 patients) was within the age range of 21 - 30 yr and the least number (5 patients) was within the age range of 51 - 60 yr. The highest number of amputation (71 patients) was due to complications from by traditional bone setters intervention. Conclusion: In our study, we found that most cases were males with a mean age of 35 years and majority (34.69%) had below knee amputation, and that most cases suffered vascular occlusion leading to gangrene.
Differentiation of closely related Vaccinal Strains of Pasteurella multocida using Polymerase Chain Reaction (PCR)
Waheed ullah,Muhammad Abubakar,Muhammad Javed Arshed,Syed Muhammad Jamal
Vet Scan , 2009,
Abstract: Nucleic acid based differentiation of closely related Pasteurella multocida vaccinal strains was performed. Morphological and biochemical characterization, HS-specific and species-specific PCR analysis of Pasteurella multocida vaccinal strains were demonstrated useful in distinguishing hemorrhagic septicemia-causing type B strains. The PCR assay performed for species specific P. multocida by using primer pair KMT1T7 and KMTISP6 resulted in amplification of all the strains. Another PCR analysis carried out for H.S. causing strain conformation by using primer pairs KTT72 and KTSP61 showed that only H.S. causing strains were amplified. It was also observed that PCR amplification performed directly on bacterial colonies or cultures was an extremely rapid, sensitive method of P. multocida identification.
Comparative study of haemagglutination inhibition, Agar gel precipitation test, Serum neutralization and Enzyme linked immunosorbent assay for detection to avian influenza viruses  [PDF]
Shahid Faraz, Muhammad Abubakar, Mohammad Farooque, Sarfaraz Ali Fazlani, Ghluam Hussain Jaffar
Health (Health) , 2010, DOI: 10.4236/health.2010.22016
Abstract: The sensitivity, specificity and reproducibility of the serological tests for detection of avian in-fluenza viruses were carried-out by using Ham- agglutination inhibition (HI), Agar gel precipita-tion test (AGPT), and Enzyme linked immu-nosorbent assay (ELISA) and Serum neutraliza-tion test. The geometric mean titre (GMT) of hae- magglutination inhibition antibodies recor- ded as log2 indicated that the post vaccination titres in the field were on higher side i.e., 7.9 for H7 and 5.9 for H9. The correlation between HI titre and AGPT affirmed that for the AGPT test need high antibody titre for positive reaction. The pooled sera were also used to correlate the se-rum neutralization test and enzyme linked im- muno-sorbent assay. The serial two fold dilute- ons were tested for the serum neutralization ac- tivity and concluded that the HI titre log2 4 pro-vided 100% protection, than 52% and 45% pro-tection in 1:2 and 1:4 dilution was recorded, respectively. Similarly, the ELISA test showed positive results up to 1:16 HI titre, i.e. log2 4 and confirmed the linear relation between these two serological tests. In HI test, the concentration of antigen can influence the result. It also needs careful preparation of concentration of eryth-rocyte suspension. Agar Gel immuno-diffusion is basically a qualitative test as it can not de-termine the quantity of antigen or antibody with the help of this test. It lacks the level of sensi-tivity as offered by other test. If serum neutrali-zation test is performed on a pooled serum sam- ples, then it could lead to a false conclusion on antibodies status. ELISA is most sensitive, spe-cific and accurate as compare to all other sero-logical tests.
A Molecular Approach for Genotyping of Hepatitis B Virus Using Restriction Pattern Analysis of S Amplicon in Pakistan  [PDF]
Nazish Badar, Umer Farooq, Shafaqat Ali, Nadia Nisar, Muhammad Abubakar, Javed Anwar Qureshi
Open Journal of Medical Microbiology (OJMM) , 2012, DOI: 10.4236/ojmm.2012.21003
Abstract: Background Hepatitis B virus (HBV) is the major etiological agent causing acute and chronic liver disease worldwide with significant morbidity and mortality. The high genetic variability of HBV is reflected by eight genotypes (A to H), each with a particular geographical prevalence. The global pattern of HBV genotypes is associated with the distribution of human population among the different continents and reflects the patterns of human migrations. Objectives This study was conducted with following objectives: 1) To study the prevalence of HBV genotype in Pakistani population; 2) To assess that the RFLP system is simple, rapid and standardized way of identifying HBV genotype. Study Design & Method In cross-sectional study design a total of 255 HBV ELISA positive samples were studied in order to identify the most prevalent genotypes in Pakistan. These HBV related patients visited various hospitals in Pakistan at Faisalabad, Lahore and Islamabad. Among these samples, 214 were PCR positive and rest 41 were PCR negative for HBV. S-gene of HBV PCR positive samples was amplified by regular (first round) and nested PCR (second round). Second-round PCR products were digested by Restriction Fragment Length Polymorphism (RFLP). This was carried out using five restriction enzymes (HphI, NciI, AlwI, EarI and NlaIV) that identified the genotype-specific sequences. Results & Conclusion Among (214) PCR positive samples only genotype C and D were identified in local population with 21 cases (9.81%) of genotype C and 195 (91.1%) of genotype D. Hence, the algorithm adopted in this study can be used to identify various HBV genotypes.
Culture Consideration in the Design of Government Housing Estates - A case study of selected estates in Maiduguri, Borno State - Nigeria
UA Jalam, MY Abubakar, S Muhammad
ATBU Journal of Environmental Technology , 2011,
Abstract: A study to investigate the extent to which design and planning have considered culture of the target users was carried out on three selected government-built estates in Maiduguri, northeastern Nigeria. The estates were: Abbaganaram or ‘State’ Low-cost, Dikwa Low-cost and 303 Estate. The original designs of these estates were studied and so were the post-occupancy modifications made to them. Although an attempt was made in all the three estates to cater for the value systems of the people through the provision of courtyards, the relationship between the various activity areas with the courtyards rendered the courtyards virtually none functional. So also, majority of the houses have been modified through the provisions of additional facilities in order to accommodate cultural issues of value to the people like polygamy, large extended families, privacy, gender segregation, etc. Thus, recommendations are made to government and estate developers to consider cultural traits in housing design and development.
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