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Search Results: 1 - 10 of 6666 matches for " Col Md Ahsan Habib "
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CURRICULUM FOR TOMORROW'S DOCTORS
Maj Gen Md Jahangir Hossain Mollik,Col Md Ahsan Habib
Journal of Armed Forces Medical College, Bangladesh , 2011,
Abstract:
A Data Mining Approach to Predict Prospective Business Sectors for Lending in Retail Banking Using Decision Tree
Md. Rafiqul Islam,Md. Ahsan Habib
Computer Science , 2015, DOI: 10.5121/ijdkp.2015.5202
Abstract: A potential objective of every financial organization is to retain existing customers and attain new prospective customers for long-term. The economic behaviour of customer and the nature of the organization are controlled by a prescribed form called Know Your Customer (KYC) in manual banking. Depositor customers in some sectors (business of Jewellery/Gold, Arms, Money exchanger etc) are with high risk; whereas in some sectors (Transport Operators, Auto-delear, religious) are with medium risk; and in remaining sectors (Retail, Corporate, Service, Farmer etc) belongs to low risk. Presently, credit risk for counterparty can be broadly categorized under quantitative and qualitative factors. Although there are many existing systems on customer retention as well as customer attrition systems in bank, these rigorous methods suffers clear and defined approach to disburse loan in business sector. In the paper, we have used records of business customers of a retail commercial bank in the city including rural and urban area of (Tangail city) Bangladesh to analyse the major transactional determinants of customers and predicting of a model for prospective sectors in retail bank. To achieve this, data mining approach is adopted for analysing the challenging issues, where pruned decision tree classification technique has been used to develop the model and finally tested its performance with Weka result. Moreover, this paper attempts to build up a model to predict prospective business sectors in retail banking.
Photocatalytic Degradation of p-Nitrophenol (PNP) in Aqueous Suspension of TiO2  [PDF]
Shafiqul Islam, Sumon Kumar Bormon, Md. Nadim, Kamrul Hossain, Ahsan Habib, Tajmeri Selima Akhter Islam
American Journal of Analytical Chemistry (AJAC) , 2014, DOI: 10.4236/ajac.2014.58057
Abstract: The effects of initial concentrations of PNP, doses of TiO2, cations and anions have been investigated to find out the conditions for the maximum degradation of PNP in presence of 254 nm UV light. The rate of photocatalytic degradation of PNP was increased with increasing TiO2 dose until the dose concentration reached at a value 0.4 g/100 mL. Further increase of TiO2 decreased the degradation. The maximum degradation of PNP was found with the catalyst dose 0.4 g/100 mL at pH 3. The degradation of PNP was decreased with increasing of PNP concentration. About 90% degradation of PNP was observed when 1.0 × 10﹣4 M PNP was irradiated for 2 hours in 0.4 g/100 mL of TiO2 suspension. The effect of Cu(II) and Fe(II) ions on the degradation was also investigated. Addition of Cu(II) ions enhances the percent degradation but excess of Cu(II) ions decreases the degradation. Under the same experimental conditions, the presence of \"\" and \"\" is found to be detrimental to the photodegradation of PNP. Hydrogen ion concentration of reaction mixture was found to increase continuously during photodegradation suggesting mineralization of PNP.
Handwritten Numeric and Alphabetic Character Recognition and Signature Verification Using Neural Network  [PDF]
Md. Hasan Hasnain Nashif, Md. Badrul Alam Miah, Ahsan Habib, Autish Chandra Moulik, Md. Shariful Islam, Mohammad Zakareya, Arafat Ullah, Md. Atiqur Rahman, Md. Al Hasan
Journal of Information Security (JIS) , 2018, DOI: 10.4236/jis.2018.93015
Abstract: Handwritten signature and character recognition has become challenging research topic due to its numerous applications. In this paper, we proposed a system that has three sub-systems. The three subsystems focus on offline recognition of handwritten English alphabetic characters (uppercase and lowercase), numeric characters (0 - 9) and individual signatures respectively. The system includes several stages like image preprocessing, the post-processing, the segmentation, the detection of the required amount of the character and signature, feature extraction and finally Neural Network recognition. At first, the scanned image is filtered after conversion of the scanned image into a gray image. Then image cropping method is applied to detect the signature. Then an accurate recognition is ensured by post-processing the cropped images. MATLAB has been used to design the system. The subsystems are then tested for several samples and the results are found satisfactory at about 97% success rate. The quality of the image plays a vital role as the images of poor or mediocre quality may lead to unsuccessful recognition and verification.
Selective Extraction of Co(II) in the Presence of Mn(II), Ni(II) and Cu(II) Using Salting-out Phase Separation Method
Ahsan Habib,Md. Wahiduzzaman,Harun-Or Rashid,Anarul Islam
Pakistan Journal of Analytical and Environmental Chemistry , 2008,
Abstract: Extraction of Co(II) in the presence of Mn(II), Ni(II) and Cu(II) has been studied using the mixture of 2-propanol with water upon the addition of CaCl2 in the concentration range of 3.0 – 5.0 mol dm-3 (M). Co(II) was extracted selectively to the extent of 80% into the 2-propanol phase at 5.0 M CaCl2. The percent of extraction of other transition metal ions, for example Mn(II), Ni(II) and Cu(II) was much lower than that of Co(II), but they were stripped in the aqueous phase upon addition of CaCl2. Therefore, selective extraction of Co(II) from these metal ions was attained by using the mixture of water and 2-propanol. Co(II) was extracted as CoCl42- from the aqueous phase into the 2-propanol phase through the formation of ion pair, Ca2+ - CoCl42-. A mechanism is proposed to explain the extraction.
Kinetics of Degradation of Eosin Y by One of the Advanced Oxidation Processes (AOPs)—Fenton’s Process  [PDF]
Ashraf Hossain, A. B. M. Sadique Rayhan, Md. Jahir Raihan, Aklima Nargis, Iqbal M. I. Ismail, Ahsan Habib, Abu Jafar Mahmood
American Journal of Analytical Chemistry (AJAC) , 2016, DOI: 10.4236/ajac.2016.712074
Abstract: Kinetics of homogeneous degradation of Eosin Y (EY), also known as Acid red 87 (CI 45380), are studied, mostly using Fenton’s process, at 30 by monitoring its absorbance at 517 nm (λmax of EY). This process is one of the advanced oxidation processes (AOPs). Mixture of H2O2 and Fe(II) ion in acetate buffer medium (pH 2.74 - 4.56) generates hydroxyl free radicals (?OH) which attack the dye molecules, resulting in degradation of the dye molecules. Results show that the initial rate of EY degradation decreases with the increasing of solution pH because of removal of kinetically important Fe (iron) species through formation of ferric hydroxide. On the other hand, the rate increases with increasing the?concentrations of H2O2, Fe(II) and EY at low solution pH. The initial rate increases with increasing of concentration of H2O2 and, subsequently remains unaffected with further increase of its concentration at a constant Fe(II) concentration because of the enhanced scavenging environment created by H2O2 at its higher concentration. The initial rate also increases with increasing of concentration of Fe(II) at a constant H2O2 concentration and remains unaffected with its further increase. EY concentration also enhances the initial rate at low pH. However, the initial rate is significantly enhanced by UV light. This is because of formation of additional hydroxyl radicals through excitation of the dye molecules by UV light. During the period of experiment, EY in aqueous solution alone hardly suffered any degradation. Degradation mechanism of EY by the Fenton and photo-Fenton’s processes is also discussed. Statistical analysis was used to validate the experimental results. Low values of the standard deviation for both the initial rate and % degradation indicated the consistency of the experimental data.
Synthesis and characterization of ZnO-TiO2 nanocomposites and their application as photocatalysts
Md Ahsan Habib, Md Tusan Shahadat, Newaz Mohammed Bahadur, Iqbal M I Ismail and Abu Jafar Mahmood
International Nano Letters , 2013, DOI: 10.1186/2228-5326-3-5
Abstract: Nanocomposite ZnO-TiO2 powders of varying ZnO/TiO2 molar ratios have been prepared from their salt/compound by heating at 600°C and 900°C and characterized using scanning electron microscope and X-ray diffraction techniques. The nanosized powders can decolorize/degrade brilliant golden yellow (BGY), an azo dye extensively used in textile industries, in water under solar irradiation. The effects of various parameters such as photocatalyst loading, molar ratio of ZnO/TiO2, pH of the solution, initial dye concentration, and irradiation time on the photodecolorization have been investigated. ZnO-TiO2 nanocomposite (6 g/L) in the molar ratio of 1:1 or 3:1, prepared at 900°C, can efficiently decolorize about 98% of 20 mg/L BGY at pH of about 7 by 2-h illumination in sunlight. The initial dye decolorization follows pseudo-first-order kinetics. Finally, trial experiments were done using real textile wastewater to find out the effectiveness of the photocatalysts to a more complex system.
EMBRYONIC DEVELOPMENT OF CLARIAS BATRACHUS UNDER THE INFLUENCE OF AERATION AND WATER FLOW
Sk. Mustafizur Rahman,Md. Ahasan Habib,Quazi Zahangir Hossain,Md. Noman Siddiqui,Md. Mostafizur Rahman,Md. Nazmul Ahsan
Ecoprint: An International Journal of Ecology , 2011, DOI: 10.3126/eco.v18i0.9395
Abstract: Specific investigation on the time (h) required for catfish, Clarias batrachus, embryos to reach various early developmental stages were carried out under different experimental conditions. Five hundred fertilized eggs were incubated in tray (28oC–30.5oC) with continuous water flow and aeration (T1), with only continuous water flow (T2) or aeration (T3) and without continuous water flow and aeration (T4). Fertilized embryos hatched successfully in all treatments except for T4. Time requirements for 2-cell, 4-cell, 8-cell, morula, germinal ring, yolk-plug, twisting movement, prehatching and hatching were comparable for all treatments. However, developmental speed was ceased from yolk-plug stage for T4. Time requirements for two-cell, four-cell, eight-cell, morula, germinal ring, yolk-plug, twisting movement, and hatching were 0.43, 0.48, 0.53, 3.52, 6.07, 8.50, 15.04, 20.08, and 21.40 h, respectively for T1; 0.44, 0.47, 0.51, 3.49, 6.10, 8.51, 15.13, 20.19, and 21.56 h, respectively for T2; 0.50, 0.53, 0.59, 3.52, 6.13, 8.53, 15.11, 20.18, and 22.13 h, respectively for T3. Fertilized eggs of C. batrachus incubated in tray with only aeration (T3) is sufficient for successful hatching and could be cost-effective for hatchery operation.
A Comparative Study on the Quality of Rasogolla Made in Laboratory and Collected from Local Markets of Mymensingh, Bangladesh
Sharif Uddin Tarafdar,Md. Ahsan Habib Pramanik,Biplob Basak,Muhammad Siddiqur Rahman
Pakistan Journal of Nutrition , 2002,
Abstract: Rasogolla is one of the most important pleasant and charming foods to most of the people of Bangladesh. In most of the markets of Bangladesh rasogolla are more or less available, but the quality of rasogolla varies from place to place. Sometimes manufacturers add some ingredients that decrease the quality of rasogolla. That is why, this research work was carried out to study the quality of rasogolla available in markets and to compare them with rasogolla prepared in the laboratory and also to investigate both the physical and chemical characteristics. Four rasogolla samples were collected from local markets of Mymensingh district and another sample was prepared in the laboratory to conduct the experiment with the above theme. Then the rasogolla were judged by a panel of expert judges for organoleptic test and also analyzed for chemical qualities. Considering the physical and chemical properties of both the samples of rasogolla, the results indicated that the laboratory made rasogolla was significantly better in quality than market rasogolla. As the laboratory made rasogolla was prepared with special care whereas market rasogolla might have the adulterated during preparation. It may be suggested that to obtain the better quality rasogolla proper method, proper composition of the ingredients, and also the strict hygienic and sanitation measures should be followed that will also gives the consumers satisfaction.
Azolla (Azolla pinnata) as a Feed Ingredient in Broiler Ration
Biplob Basak,Md. Ahsan Habib Pramanik,Muhammad Siddiqur Rahman,Sharif Uddin Tarafdar
International Journal of Poultry Science , 2002,
Abstract: An experiment was conducted with 120 seven days old Vencobb commercial broiler chicks and continued up to 42 days of age to determine the feasibility of Azolla (Azolla pinnata) as a feed ingredient in broiler ration. The broilers are randomly allotted to four dietary treatments; T1 (control diet without Azolla meal), T2 (diet with 5% Azolla meal), T3 (diet with 10% Azolla meal) and T4 (diet with 15% Azolla meal) diets replacing sesame meal by Azolla meal. The composition of Azolla meal contained 25.78% crude protein, 15.71% crude fibre, 3.47% ether extract, 15.76% ash and 30.08% nitrogen free extract on the air-dry basis. Live weight, production number and protein efficiency were (P< 0.01) significantly improved at the level off 5% Azolla meal in broiler ration. Feed conversion ratio and energy efficiency were significantly (P< 0.01) improved in diet with 5% Azolla meal and control diet. Total cost Tk/kg broiler was significantly (P<0.05) better in the diet with 5% Azolla meal. Dressing percentage was significantly (P<0.01) increased on diet with 5% Azolla meal. Giblet percentage on dietary treatment T4 significantly (P<0.05) increased than other treatments. It can be conducted that use of Azolla meal up to 5% in the broiler ration found to improve performance and may be used in broiler diet as a safe level. Azolla meal had no deleterious effect on the palatability of broiler diets.
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