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Search Results: 1 - 10 of 464376 matches for " A. Mudheher Hasan "
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Intelligent Identification System for Tilt Computation Using Low-cost Inertial Sensors
A. Mudheher Hasan,K. Samsudin,A.R. Ramli
Journal of Artificial Intelligence , 2012,
Abstract: Attitude computed using raw gyro measurements through the INS algorithm suffer from unrestricted error escalation during INS-stand alone phase when utilizing low cost IMU sensors without aiding from other sensors. Hence, an intelligent vehicle dynamic identification system is produced in this study to identify the vehicle status and fuse data from multiple low cost gyroscopes and accelerometers to estimate precise tilt angles and reduce the accumulated error through utilizing the corresponding motion characteristics of the accelerometers and gyroscopes. The results obtained using a real field test data shows clearly a significant reduction in tilt error during stand alone INS.
Cancer Risk Due to the Natural Radioactivity in Cigarette Tobacco  [PDF]
Ali A. Ridha, Hasan A. Hasan
Detection (Detection) , 2016, DOI: 10.4236/detection.2016.43008
Abstract: Thirty-one samples of cigarettes have been collected from local markets of different types of origins. The samples were selected according to a survey distributed to smokers by paper and digital survey to see the most heavily traded among smokers and in addition to a number of questions to see how the awareness and the culture of smokers in diseases caused by smoking and considered this study the first survey in Iraq. The aim of this research is to assess the number of cancer cases due to cigarette smoking. Through the use of High-Purity Germanium system (HPGe) (efficiency 40%) we determinated the radionuclides in cigarette tobacco. The average values were (14.86 ± 3.76, 10.84 ± 3.13, 1050.64 ± 47.57) Bq/kg for Ra-226, Th-232 and K-40, respectively, and the excess lifetime of cancer risk values ranged from 0.54 to 130 at average of 76 per million person per year. Raeq values varied from 18.50 to 87.21.4 Bq/kg with an average value of 39.51 Bq/kg for tobacco samples. The annual effective dose (HE) varies from 16.38 μSv/y to 44.69 μSv/y with an average value of 24.97 μsv/y. The Annual Gonadal Dose Equivalent (AGDE) varies from 0.3 to 0.64 (mSv/y) with an average value of 0.42 for all tobacco samples under investigation.
Quality as Determinant Factor of Customer Satisfaction: Case Study of Zain-Kuwait  [PDF]
Hasan A Abbas
iBusiness (IB) , 2013, DOI: 10.4236/ib.2013.53B038
Abstract:

The potential of mobile communications market in Kuwait is enormous. Therefore, I test customer satisfaction in the Kuwaiti mobile market by examining the quality construct. In our study, quality is measured through the dimensions: interaction quality, environment quality, and outcome quality. Our results show that outcome quality is the most influential construct over satisfaction. Also, the results find that interaction quality is not significant and carries no important association with customer satisfaction.

Intercity Bus Scheduling for the Saudi Public Transport Company to Maximize Profit and Yield Additional Revenue  [PDF]
Mohamad K. Hasan, Ahmad A. Al Hammad
Journal of Service Science and Management (JSSM) , 2010, DOI: 10.4236/jssm.2010.33044
Abstract: The Saudi Public Transport Company (SAPTCO) intercity bus schedule comprises a list of 382 major trips per day to over 250 cities and villages with 338 buses. SAPTCO operates Mercedes 404 SHD and Mercedes 404 RI-IL fleet types for the intercity trip. The fleet assignment model developed by American Airlines was adapted and applied to a sample of the intercity bus schedule. The results showed a substantial saving of 29% in the total number of needed buses. This encourages the decision makers at SAPTCO to use only Mercedes 404 SHD fleet type. Hence, the fleet assignment model was modified to incorporate only one fleet type and applied to the sample example. Due to the increase in the problem size, the model was decomposed by stations. Finally, the modified decomposed model was applied to the whole schedule. The model results showed a saving of 16.5% in the total number of needed buses of Mercedes 404 SHD. A sensitivity analysis was carried out and showed that the predefined minimum connection time is critical for model efficiency. A modification to the connection time for 11 stations showed a saving of 14 more buses. Considering our recommendation of performing a field study of the trip connection time for every station, the expected saving of the total number of needed buses will be about 27.4% (90 buses). This will yield a net saving of 16.44 million Saudi Riyals (USD 4.4 million) per year for SAPTCO in addition to hiring new employees. The revenue analysis shows that these 90 surplus buses will yield about USD 20,744,000 additional revenue yearly.
Study of Weak Acid Preservatives and Modified Atmosphere Packaging (MAP) on Mold Growth in Modal Agar System  [PDF]
Salah M. Hasan, Ramadan A. Abdolgader
Food and Nutrition Sciences (FNS) , 2012, DOI: 10.4236/fns.2012.36108
Abstract: Inhibition of spoilage mold of common contaminant of bakery goods in modal agar system by potassium sorbate and calcium propionate in wide range of concentration (0 - 2000 ppm) at different pH (5.5 - 7) was investigated. All Samples were examined daily for mold growth. Results showed that both potassium sorbate and calcium propionate can be used effectively to inhibit mold growth and the effectiveness of these preservatives is enhanced by increasing the concentration and decreasing the pH. The effect of modified atmosphere packaging (MAP) comprised of 60% or 80% CO2 (balance N2) and oxygen absorbents on the growth of mold was also studied on the agar system. The results indicated that mold growth was prevented up to 42 days in packs flushed with 60% or 80% CO2 (balance N2). It was also evident that all samples did not show mold growth for >40 days when packaged in the presence of oxygen scavenger sachet.
Microwave Preparation and Spectroscopic Investigation of Binuclear Schiff Base Metal Complexes Derived from 2,6-Diaminopyridine with Salicylaldehyde  [PDF]
Hasan A. Mohammed, Nihad Ismeal Taha
International Journal of Organic Chemistry (IJOC) , 2017, DOI: 10.4236/ijoc.2017.74033
Abstract: The binuclear Schiff base complexes prepared by condensation 2,6-diamino-pyridine and salicylaldehyde (LH) by using microwave and adding metal salts to ligand by same ratio. The Schiff base ligand was checked by infrared, electronic spectra and 1HNMR spectroscopy and prepared complexes characterized by molar conductivity, infrared, electronic spectra and susceptibility measurements. The values of molar conductivities reveal that the complexes are non-electrolytes, from obtained data of electronic spectra and magnetic moment, an octahedral geometry was suggested, coordinated to the metal ions in a manner with N donor sites of imine groups, and oxygen of phenolic OH group.
Effect of Gamma Irradiation Doses on Morphological and Biochemical Attributes of Grape Saplings  [PDF]
A. F. M. Saiful Islam, M. Muzahedul Islam, Md. Mehedi Hasan, Md. Mehedi Hasan
Agricultural Sciences (AS) , 2015, DOI: 10.4236/as.2015.65050
Abstract: The demand of grape in Bangladesh is fulfilled through import from foreign countries. The fruits of local cultivars of grapes are sour and seeded. Development of seedless grape varieties having increased sweetness, higher yield with better nutritional quality is necessary to reduce the import dependency. The present research activities are the part of a grape improvement project. A pot experiment was conducted at the Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, during June to November 2011 to determine the suitable gamma irradiation doses on growth, leaf area and biochemical characters of grape saplings. Three vegetative bud stages viz. bud initiation stage, 4-leaf stage and 8-leaf stage, and four doses of gamma irradiation viz. 0, 5, 10, and 15 Gy were used as treatments. The experiment was laid out in a Randomized Complete Block Design with four replications. Different irradiation doses and vegetative bud stages showed significant variations in respect of plant growth characters, leaf area, soluble protein and total sugar content. Interaction effects also had significant variations on most of the parameters studied. Higher doses of gamma irradiation had showed detrimental effect on grape saplings. Generally, increased in irradiation doses showed decreased and detrimental effects on most of the parameters under study. Maximum numbers and length of roots, total dry matter, leaf area and chlorophyll-a and chlorophyll-b content were found at 5 Gy irradiation dose. Total soluble protein and sugar content of leaf were found maximum at no irradiation and 15 Gy, respectively. Higher number of roots and length, total dry matter, leaf area, chlorophyll-a, and b and soluble protein content of leaf were observed at bud initiation stage while 8-leaf stage showed maximum total sugar of leaf. In the combined effect of gamma irradiation and vegetative bud stages, all parameters showed best results in 5 Gy with bud initiation stage except total sugar content of leaf.
Magnetohydrodynamic Stability of Streaming Jet Pervaded Internally by Varying Transverse Magnetic Field
Alfaisal A. Hasan
Mathematical Problems in Engineering , 2012, DOI: 10.1155/2012/325423
Abstract: The Magnetohydrodynamic stability of a streaming cylindrical model penetrated by varying transverse magnetic field has been discussed. The problem is formulated, the basic equations are solved, upon appropriate boundary conditions the eigenvalue relation is derived and discussed analytically, and the results are verified numerically. The capillary force is destabilizing in a small axisymmetric domain 0<<1 and stabilizing otherwise. The streaming has a strong destabilizing effect in all kinds of perturbation. The toroidal varying magnetic field interior the fluid has no direct effect at all on the stability of the fluid column. The axial exterior field has strong stabilizing effect on the model. The effect of all acting forces altogether could be identified via the numerical analysis of the stability theory of the present model.
Reflexivity of convex subsets of L(H) and subspaces of lp
Hasan A. Shehada
International Journal of Mathematics and Mathematical Sciences , 1991, DOI: 10.1155/s0161171291000054
Abstract:
Role of nitric oxide in management of acute respiratory distress syndrome
Akmal A,Hasan Mohd
Annals of Thoracic Medicine , 2008,
Abstract: The current mortality rate of patients suffering from acute respiratory distress syndrome (ARDS) is between 45% and 92%, with most dying within the first two weeks of the illness. In an effort to combat such an alarmingly high mortality rate, various treatment therapies such as low tidal volume ventilation strategies, corticosteroid therapy, and use of nitric oxide (NO) have been attempted in the management of patients with ARDS. Three cases which were admitted to the ICU and confirmed to have ARDS were unable to be weaned from ventilatory support, and nitric oxide therapy was initiated. It improved patients′ oxygenation for short periods of time but did not affect the mortality. The patients could not be weaned from the ventilator and expired.
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