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Open access

M. Hasan and M. Reaz

Hardware Prototyping of Neural Network based Fetal Electrocardiogram Extraction

The aim of this paper is to model the algorithm for Fetal ECG (FECG) extraction from composite abdominal ECG (AECG) using VHDL (Very High Speed Integrated Circuit Hardware Description Language) for FPGA (Field Programmable Gate Array) implementation. Artificial Neural Network that provides efficient and effective ways of separating FECG signal from composite AECG signal has been designed. The proposed method gives an accuracy of 93.7% for R-peak detection in FHR monitoring. The designed VHDL model is synthesized and fitted into Altera's Stratix II EP2S15F484C3 using the Quartus II version 8.0 Web Edition for FPGA implementation.

Open access

M. Ali, F.U. Hasan and M. Afzal

Abstract

An experiment was conducted according to randomized complete design to determine best plant spacing and agronomic traits at research farm PMAS Arid Agriculture University Research Farm Chakwal Road, Rawalpindi, during 2008-2009. Three plant spacing’s (5, 10, 15 cm) and three row spacing’s (10, 20, 30 cm) comprised of the following treatment combinations (T1= 5×10 cm, T2= 5×20 cm, T3= 5×30 cm, T4= 10×10 cm, T5= 10×20 cm, T6= 10×30 cm, T7= 15×10 cm, T8= 15×20 cm, T9=15×30 cm) under rain-fed conditions. The net plot size was 2×6 m with three replications. Days to emergence, plant height at maturity, number of branches per plant, number of capsules per plant, number of seed per capsule, 1000- seed weight, seed capsule ratio, seed yield per plot, biological yield, harvest index, oil concentration and fresh weight of weeds was observed. All agronomic attributes were significantly effected at 15×30 cm spacing, along with oil concentration and fresh weight of weeds, while 10×10 cm row to row and plant to plant spacing had no significant effect. Plant height (cm), number of capsules per plant was maximum for plant geometry of 15×30 cm and lesser amount of weeds. An increase in row and plant spacing led to significantly higher of branching. Higher plant and row spacing resulted in non- consistent increase in the number of seeds per capsule. Seed yield increased with higher row to row and plant to plant spacings. Yield were lower at the narrow (10×10 cm) row and plant spacing’s, compared to higher of 15×30 cm spacing. Thus, it is concluded from this study that Linola should be grown at 300-450 cm grids for higher yield output.

Open access

M.M. Hasan, M.R.I. Faruque and M.T. Islam

Abstract

The aim of this paper is to describe a split S-shaped composite meta atom which shows double negative characteristics at resonance frequency. The proposed meta-atom structure exhibits an almost 3.70 GHz bandwidth when the operating frequency from 8 to 14 GHz (X-band). In this study, the ring width, split width, size of substrate material, and the substrate material itself are varying to investigate their effect on the resonance frequencies. Metal strips of the outer resonator are the splits and the inner ring resonator is designed in a way that it forms a split S-shaped structure on the epoxy resin fibre (FR-4) substrate material. The CST Microwave Studio electromagnetic simulator software was used for the design and simulation purposes, and an Agilent N5227A vector network analyser was used for practical measurements.

Open access

A. Zafar, Z. Imran, M. Rafiq, S. Shah and M. Hasan

Abstract

We investigated electrical properties of nanostructured La1−x SrxFeO3 (0 ≤ x ≤ 1) from 300 K–400 K. The nanostructured La1−x SrxFeO3 (0 ≤ x ≤ 1) was synthesized by citrate gel method requiring no pH control. X-ray diffraction pattern showed that single phase LaFeO3 with an orthorhombic structure was formed. The structure changed into rhombohedral for x = 0.5 and it became cubic for x = 1.0. For x ≤ 0.5, our material showed non-linear current-voltage characteristics and for x > 0.5 it showed linear current-voltage characteristics. Poole Frenkel type conduction mechanism was found to be operative in LaFeO3 from 300 K–400 K. The experimental values of field-lowering coefficient were by 2.56–6.41 times higher than the predicted value and were attributed to the presence of localized fields. The increase in conductance with Sr content was due to formation of Fe4+ ions in addition to Fe3+ with the increase in Sr content. Impedance spectroscopy and ac conductivity analysis of La1−x SrxFeO3 (0 ≤ x ≤ 1) was also carried out in the temperature range from 300 K–400 K and frequency was varied from 20 Hz - 2 MHz. The ac conduction followed the correlated barrier hopping model in La0.9Sr0.1FeO3.

Open access

M.S. Islam, M.K. Hasan, A.K.M. Mosharof Hossain, M.A. Hakim, M. Sirazul Islam and A. El Sabagh

Abstract

A laboratory test was carried out to examine the influence of various storage containers and periods on the germination percentage of black gram seed. In this research, three seed containers, viz. sealed tin container, poly bag and gunny bag were used to store the seeds, as well as seeds were stored for three different storage periods, viz. 15, 30 and 45 days and thereby conducted germination tests. The results revealed that storage and storage periods considerably influenced the germination percentage (GP) of black gram seed. The highest GP of 87.73% was found in the seeds stored at sealed tin container, while the lowest GP (71.08%) was observed in the seeds stored in gunny bag. Among the three storage containers, the GP reduced rapidly in the seeds stored in gunny bags (6.52%), followed by poly bag (18.98%). The maximum values of GP (85.43%) of black gram seed were recorded when 15 days after storage (DAS), whereas the lowest GP (68.33%) was at 45 DAS, and the GP decreased noticeably with the increase of storage periods from 15 to 30 and to 45 DAS. In combination influence of storage containers and storage periods, the maximum GP (85.90%) was recorded at when seeds kept in sealed tin container with stored for the shortest duration (15 DAS), while the minimum (58.11%) was recorded in the seeds stored in gunny bag for the longest period with 45 DAS. Seeds stored in the sealed tin containers exhibited an excellent performance regarding GP with the shortest storage periods and, thereby, black gram should be kept in sealed tin containers or like this air tight containers for storage, as well as seeds should be sun dried after a short period for maintaining seed quality.

Open access

Wael M. Hananeh, Zuhair Bani Ismail, Musa A. Alshehabat, Mahmoud Abu Abeeleh and Ja’far Hasan Ali

Abstract

The therapeutic effects of Sidr honey on second-intention healing of contaminated full-thickness skin wounds in dogs were investigated. Povidone-iodine was used as a standard treatment and served as a control. Healthy adult (two-to-four-year-old) mongrels, comprising six dogs and two bitches, were divided into four equal groups in order to obtain multi-aged wounds at the end of the study. Four 2cm × 2cm full-thickness skin wounds were created on both sides of the back area of each dog under general anaesthesia adhering to aseptic technique. Contaminated wounds were then divided into two treatment groups: Group 1, Sidr honey treated (right side wounds) and group 2, povidone-iodine treated (left side wounds). All wounds were evaluated grossly daily at the time of treatment application and digitally photographed once every week. Images were analysed using ImageJ software. The parameters of unhealed wound area and length of advancing epithelium were obtained. The epithelialisation areas, percentage of wound area, and wound contraction rate were then calculated. No significant differences were found between the two treatment groups in any of the parameters studied. Overall, both honey treated and iodine treated wounds healed well within the time period of the study (28 d). However, the study showed a beneficial effect of Sidr honey on second-intention healing of full thickness contaminated wounds in healthy dogs and the effect was comparable to that of Povidone iodine.

Open access

Gamal Abd El Nasser Yamamah, Soha M. Abd El Dayem, Emad Salama, Hasan Salama and Mohamed Shoman

Abstract

Objective: To evaluate prevalence of urinary crystals among Egyptian children in selected 6 localities of South Sinai.

Subject and Methods: It is a cross sectional, observational study, included 1918 children from six localities of South Sinai. History of any previous renal problems was taken and urine samples were collected from all patients to search for the presence of any type of crystals.

Results: Prevalence of urinary crystals was found to be 28.99 %. The most frequent urinary crystals were oxalate (15.64 %). Oxalate crystals were the highest in EI-Tur, Uric acid crystals were the highest in Abo Redeis, Triple phosphate crystals were the highest in Saint Katrin. Uric acid crystals were significantly higher in children of bedouin area and in children with positive consanguinity.

Conclusion: high prevalence of urinary crystals (which predispose to stone formation) among children in South Sinai. City was the most frequent risk factor for the three crystals and oxalate crystals were the most common crystal followed by uric acid.

Open access

Kamil M. Mustafa, Mufeed J. Ewadh, Mohammed Baqur S. Al-Shuhaib and Hamid G. Hasan

Abstract

This study was conducted to describe the role of the chloroplast maturase K (matK) genetic polymorphism in the reciprocal crossing between five barley varieties using several in vitro / in silico tools. Besides, the final consequences of the matK gene polymorphism on its protein structure, function, and interactions were predicted computationally. Five parental varieties were crossed to each other by full reciprocal crossing design, DNA was extracted from seeds and two different primers’ pairs were designed to scan matK gene. Then, polymerase chain reaction - single-stranded conformation polymorphism (PCR-SSCP) were performed. Two distinct haplotypes in both parents and artificial F1 hybrids in the matK gene were observed in both amplified fragments. This finding indicated that the studied gene had no participation in the reciprocal crossing performed. Three SNPs were identified; two of them are non-synonymous (nsSNPs), namely G387V and L459M. The effect of these missense mutations on the matK protein was analyzed by several in silico tools. It was shown that the coding SNP, L459M was predicted to have much more effective consequences on matK protein structure and function. While the I-Mutant 2.0 prediction tool showed a decrease in stability for these two nsSNPs, which may destabilize the protein interactions to some extent. In conclusion, though the observed missense mutations in the matK gene have no suggestive role in the reciprocally crossed barley varieties, they caused dramatic alterations in several matK protein moieties, which may lead to potential subsequent changes in the matK protein-mediated RNA splicing mechanisms.

Open access

C. Mohamed Yousuff, V. Mohamed Yousuf Hasan and M. R. Khan Galib

Abstract

With the rapid increase in transmission speeds of communication systems, the demand for very high-speed lowpower VLSI circuits is on the rise. Although the performance of CMOS technologies improves notably with scaling, conventional CMOS circuits cannot simultaneously satisfy the speed and power requirements of these applications. In this paper we survey the state of the art of on-chip interconnect techniques for improving performance, power and delay optimization and also comparative analysis of various techniques for high speed design have been discussed.

Open access

Polat Dursun, Ali Ayhan, Levent Mutlu, Mete Çağlar, Ali Haberal, Taygun Güngör, Mustafa Özat, Emre Özgü, Anıl Onan, Çağatay Taşkiran, Haldun Güner, Hakan Yetimalar, Burcu Kasap, Kunter Yüce, M. Coşkun Salman, Berkan Sayal, Selen Doğan, Müge Harma, Mehmet Harma, Mustafa Basaran, Hüseyin Aydoğmuş, Yusuf Ergün, Salim Şehirali, Emre Gültekin, Şükran Köse, Yusuf Yildirim, Müfit Yenen, Murat Dede, İbrahim Alanbay, Rıza Karaca, Jale Metindir, Levent Keskin, Işık Üstüner, Filiz Avşar, Hasan Yüksel and Selim Kirdar

Abstract

Objective: To evaluate the prevalence of HPV DNA and cervical cytological abnormalities, to compare cervical cytology results and HPV DNA and to define HPV types distribution in a large series of Turkish women who have undergone HPV analysis in hospitals that are members of the Turkish Gynecological Oncology Group.

Material and Method: Between 2006 and 2010, a total of 6388 patients’ data was retrospectively evaluated at 12 healthcare centers in Turkey. Demographic characteristics, cervical cytology results, HPV status and types were compared.

Results: The mean age of the patients was 38.9±10.2. Overall, 25% of the women were found to be HPV positive. Presence of HPV-DNA among patients with abnormal and normal cytology was 52% and 27%, respectively. There was significant difference with respect to decades of life and HPV positivity (p < 0.05). HPV was positive in (within the HPV (+) patients) 37%, 9%, 27%, 20%, 22%, and 41% of the ASCUS, ASC-H, LSIL HSIL, glandular cell abnormalities, and SCC cases respectively The most common HPV types in our study were as follows; HPV 16 (32%), HPV 6 (17%), HPV 11 (9%), HPV 18 (8%), HPV 31 (6%), HPV 51 (5%), HPV 33 (3%).

Conclusion: In this hospital based retrospective analysis, HPV genotypes in Turkish women with normal and abnormal cytology are similar to those reported from western countries. Further population based prospective multicenter studies are necessary to determine non-hospital based HPV prevalence in Turkish women