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Search Results: 1 - 10 of 5964 matches for " Md. Abdur Rashid "
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An Analysis for Distribution of Natural Radionuclides in Soil, Sand and Sediment of Potenga Sea Beach Area of Chittagong, Bangladesh  [PDF]
Sabina Yasmin, Bijoy Sonker Barua, Masud Kamal, Md. Abdur Rashid
Journal of Environmental Protection (JEP) , 2014, DOI: 10.4236/jep.2014.517147
Abstract: A HPGe (High Purity Germanium) detector based, low background gamma-ray counting system was used for activity measurement in soil, sand and sediment samples collected from Potenga sea beach area of Chittagong, Bangladesh. The specific radioactivities of Radium (226Ra), Thorium (232Th) and Potassium (40K) were measured in the above samples. The investigation reflects the lower deposition of minerals exist in the collected samples. From the measured specific radioactivities of the above three natural radionuclides, the radium equivalent activity (Raeq), the external hazard index (Hex), the external gamma absorbed dose rate and the annual effective dose were calculated. The obtained mean values of gamma absorbed dose rate in soil and sand samples and annual effective dose in soil, sand and sediment samples were found higher than the worldwide average as reported by United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR, 2000). The Raeq values were in the range of 47.86 to 293.76 Bq·kg-1 and the Hex varied from 0.13 - 0.81, which indicated that the study area was radiologically safe for human being.
Evaluation of Economical and Ecological Aspects of Denim Garments Dyeing with Fluorescent Dye  [PDF]
Muhammad Abdur Rashid, Md. Delwar Hossain, Muhammad Mufidul Islam, Md. Nakib-Ul-Hasan
Journal of Materials Science and Chemical Engineering (MSCE) , 2013, DOI: 10.4236/msce.2013.17001

In this study the existing process (3 steps) and proposed process (2 steps) were evaluated during dyeing of denim fabric with fluorescent dye. It compared the effectiveness of these two processes of fluorescent dyeing in the textile industry. Here at first the grey denim fabric was pretreated by scouring and bleaching. Then the fabric was dyed in existing process i.e. through catanizing, dyeing and binding at 10% and 15% shades. Again the pretreated fabric was dyed in proposed process i.e. through catanizing and (dyeing and binding) with same shades. Then the properties of two types of dyed fabric were compared. This study provides a set of experimental results, discussion and comparison between the two processes. The results show that the proposed process has less power and time consumption and more water savings compared to existing process. So the evaluation reflected that the proposed process was much more effective than existing process of denim dyeing with fluorescent dye.

Nexus between Electricity Generation and Economic Growth in Bangladesh
Md. Abdur Rashid Sarker,khorshed Alam
Asian Social Science , 2010, DOI: 10.5539/ass.v6n12p16
Abstract: This paper employs Granger-causality test on the nexus between economic growth and electricity generation using Bangladesh data covering the period 1973-2006. The test results indicate that only unidirectional causal relationship exists between electricity generation and economic growth. The short run causal relationship is found from electricity generation to economic growth. Policies and strategies for increasing electricity generation can therefore be implemented for speeding up of economic growth in the country.
Tissue Specific Esterase Isozyme Variation In Clarias batrachus And C. gariepinus
Md. Abdur Rashid,Dilshad Tamanna Rahman
Journal of Entomology and Zoology Studies , 2013,
Abstract: Esterase isozymes of Clarias batrachus and C. gariepinus were studied on 7.5% Polyacrilamide Gel Electrophoresis (PAGE) stained with and naphthyl acetates as substrates to see the tissue specific variation of this enzyme from nineteen different tissues. Maximum six esterase bands (Est-1 1.52±0.01, Est-2 1.26±0.01, Est-3 0.99±0.01, Est-40.67±0.02, Est-5 0.33±0.01 and Est-6 0.17±0.02) were observed in Asian catfish (C. batrachus) where as African catfish (C. gariepinus) shown only four (Est-11.43±0.02, Est-21.22±0.03, Est-3 1.02±0.02 and Est-50.33±0.02). Localization of esterase isozymes were observed in different tissues of both Asian and African catfishes that indicated the switch on and off of specific allele based on the physio-chemical condition of corresponding tissues. Relatively higher concentration of esterase isozymes were found in digestive tissues. High number of sterase bands was found in Asian catfish which seems to indicate the higher allelic variation than in African catfish.
Evaluation of the Performance of Different Dairy Breeds Feeding Urea Treated Rice Straw Based Similar Diet
Md. Abdur Rashid,Md. Shahadat Hossain,M.H. Kawsar
Pakistan Journal of Biological Sciences , 2001,
Abstract: The objective of the investigation was to evaluate the performance of different dairy breeds offered same ingredient, same amount of concentrate mixture and almost same amount of roughage under farm condition. Nine mid-lactating cows of three different dairy breeds were grouped into 3 diet treatments according to their genotype, T1 (Pabna breed), T2 (Sindhi cross) and T3 (Jersey cross). Average daily dry matter (DM) intake by the cows fed on T3 diet (7.23) was slightly higher than that of cows fed on diet T2 (7.20) or T1 (7.18). T3 treatment group showed higher (p<0.01) milk production (5.0) followed by T2 (3.71) and then T1 (2.78). The live weight gain (kg d -1) was highest (0.232) in Jersey cross (T 3) and lowest (0.134) in Pabna cows (T1). The difference of weight gain among different treatment groups was statistically significant. Specific gravity of milk of T2 (1.031) and T3 (1.031) groups were similar but non-significantly higher than T1 (1.029). The production of total solids (g kg -1) was higher in T1 group (139.90) than other two groups but the difference was statistically non-significant. The cows of T1 group produced significantly higher solids-not-fat (88.53 g kg -1) in their milk than other two groups. Fat production by Pabna cows (T1) was non- significantly about 4.7 and 8.2% higher than that of other two groups T2 & T3 respectively. Milk protein present in Pabna cows milk (38.10 g kg 1) was comparatively higher than that of T3 (37.78) or T2 (37.57) cows. The energy value (3.57) of milk of Pabna cows was also non-significantly higher than that of T2 (3.45) and T3 (3.33). Lowest feed cost for per liter milk production (Tk. 6.10) was found in Jersey cross (T3) and highest (Tk. 10.88) in Pabna cross (T1). There was much difference in the values of per liter milk production among the treatment groups.
Evaluation of Complete Rations Containing Road Side Grass, Maize (Zea mays) Silage or Water Hyacinth Leaves (Eichhornia crassipes) in Bangladeshi Bull Calves
Md. Abdur Rashid,Md. Shahadat Hossain,M.H. Kawsar
Pakistan Journal of Biological Sciences , 2001,
Abstract: Nine indigenous bull calves of about 2 years old were divided into 3 groups (3 animals in each). Three rations (A,B & C) were supplied to these groups randomly. The aim of investigation was to evaluate the effect of different rations on the performance of bull calves. Total dry-matter (DM) intake (kg/d) of the animals fed on diet B (2.42) was higher than that of other two. Digestibility of DM was similar in all three cases. Digestibility values for crude Protein (CP) and Ether extract were higher in treatment B group significantly (P<0.05) than the other two groups. Digestibility of crude fibre (CF) was higher in treatment A and B groups than that of C. Treatment group B also showed higher live weight gain (152 g/d) than that of group C (115 g/d) and group A (107/gd). The differences were statistically significant (P<0.01). Feed efficiency of diet group B (16.61) was also showed statistically higher (P<0.05) than that of treatment group C and treatment group A.
Non-Negative Integer Solutions of Two Diophantine Equations 2x + 9y = z2 and 5x + 9y = z2  [PDF]
Md. Al-Amin Khan, Abdur Rashid, Md. Sharif Uddin
Journal of Applied Mathematics and Physics (JAMP) , 2016, DOI: 10.4236/jamp.2016.44086
Abstract: In this paper, we study two Diophantine equations of the type px + 9y = z2 , where p is a prime number. We find that the equation 2x + 9y = z2 has exactly two solutions (x, y, z) in non-negative integer i.e., {(3, 0, 3),(4, 1, 5)} but 5x + 9y = z2 has no non-negative integer solution.
The One Step Optimal Homotopy Analysis Method to Circular Porous Slider
Mohammad Ghoreishi,Ahmad Izani B. Md. Ismail,Abdur Rashid
Mathematical Problems in Engineering , 2012, DOI: 10.1155/2012/135472
Mohammad Mustafa,MD Abdur Rashid,Zannatul Ferdous,Mohammad Shamimul Alam
Journal of Current Research in Science , 2013,
Abstract: Electrphoretic banding pattern of esterase isozymes was studied on 7.5% polyacrylamide gels from ten different tissues of four Punctius species (P. sarana, P. sophore, P. conchonius and P. ticto). All the studied species showed five esterase bands except P. ticto that lacked Est-5. Maximum number of bands was observed in heart (80%), liver (75%), pelvic muscle (73.75%), eye (70%) and brain (68.75%) of four mentioned species whereas, minimum in anterior muscle (47.5%). Same tissue of different species showed both similarity and dissimilarity in terms of allelic expression. As for example, four esterase bands were found in the liver of P. conchonius (Est-1, Est-3, Est-4 and Est-5) and P. ticto (Est-1, Est-2, Est-3 and Est-4) while two and three bands in P. sophore (Est-3 and Est-4) and P. sarana (Est-2, Est-3 and Est-4) respectively. On the other hand, allele of certain locus also showed tissue and species specific expression with varied type of intensity. For example, Est-4 was common in the liver of all the species and its intensity varied from faint to deep whereas, deep stained Est-5 was confined to the same tissue of P. conchonius only.
The One Step Optimal Homotopy Analysis Method to Circular Porous Slider
Mohammad Ghoreishi,Ahmad Izani B. Md. Ismail,Abdur Rashid
Mathematical Problems in Engineering , 2012, DOI: 10.1155/2012/135472
Abstract: An incompressible Newtonian fluid is forced through the porous of a circular slider which is moving laterally on a horizontal plan. In this paper, we introduce and apply the one step Optimal Homotopy Analysis Method (one step OHAM) to the problem of the circular porous slider where a fluid is injected through the porous bottom. The effects of mass injection and lateral velocity on the heat generated by viscous dissipation are investigated by solving the governing boundary layer equations using one step optimal homotopy technique. The approximate solution for the coupled nonlinear ordinary differential equations resulting from the momentum equation is obtained and discussed for different values of the Reynolds number of the velocity field. The solution obtained is also displayed graphically for various values of the Reynolds number and it is shown that the one step OHAM is capable of finding the approximate solution of circular porous slider. 1. Introduction An interesting subject in mathematical physics is the study and analysis of flow between plates [1–6]. An analytical overview of study of porous bearing has been carried out by Morgan and Cameron in [3]. Gorla [7] discussed the fluid dynamical and heat transfer of the circular porous slider bearing. The study of the effects of the Reynolds number on circular porous slider has been investigated in [8] by using the Variational Iteration Method (VIM) which is one of the semi analytical methods. The fluid dynamics in a slider bearing have been discussed in [9] by using the series expansion and asymptotic expansion. Wang [9], in fact, discussed the numerical solution for the porous slider for the large Reynolds number. As it is well known the numerical methods such as finite difference and finite element are time consuming and may be difficult due to stability constraints. Toward this end, in this paper, we introduce and apply an effective method (so-called one step Homotopy Analysis Method) that provides accurate solution and has advantage over the finite difference and finite element methods. Semi analytical schemes such as Variational Iteration Method (VIM), Adomian Decomposition Method (ADM), Homotopy Perturbation Method (HPM), and Homotopy Analysis Method (HAM) have been widely employed to solve various linear and nonlinear ordinary and partial differential equations. One of the advantages of the semi approximate analytical methods is that these methods generate an infinite series solution and, unlike finite difference methods, semi approximate analytical methods do not have the problem of rounding
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