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Md. Anwar Hossain,Md. Mukhlesur Rahman,Md. Wakilur Rahman,Md. Mujaffar Hossain,Md. Abul Hashem 한국축산학회 2023 한국축산학회지 Vol.65 No.1
This study aimed to identify the optimum level of supplementary feeds on the carcass traits and meat quality of Jamuna basin lambs. Forty selected lambs were divided into four treatments such as T0 (no concentrate supplementation), T1 (1% concentrate feed), T2 (1.5% concentrate feed) and T3 (2% concentrate feed) having ten lambs per treatment. The data were analyzed through Completely Randomized Design (CRD) with SAS software. Hot carcass, dressing percentage, head, leg, neck, loin, heart, and spleen weight were showed significantly (p < 0.05) higher values with increasing concentrate feed. The crude protein (CP), ether extract (EE) and ash values were significantly increased (p < 0.001) except T2 treatment. The ultimate pH was significantly increased except T2 and cooked pH was significantly decreased (p < 0.001) except T3 treatment. Drip loss and cooking loss (CL) % had significantly reduced (p < 0.001) except T3 treatment. The water holding capacity (WHC) % was significantly increased (p < 0.001) except T3 treatment. The score of color, juiciness and tenderness were significantly different (p < 0.001). Flavor and overall acceptability score were significantly increased (p < 0.05) in different treatments. The color values L* and b* had significantly changed (p < 0.001) and a* value was found significantly higher (p < 0.05) in all treatments. Hence, 12 months of aged lambs with 1.5% concentrate feed showed better performances on carcass, nutritional, physicochemical, sensory and instrumental color values to increase the carcass and the meat quality of lambs.
Ionic Liquids as Benign Solvents for the Extraction of Aromatics
Md. Anwar Hossain,Jeesun Lee,Dai Hyun Kim,Dinh Quan Nguyen,정민석,김훈식 대한화학회 2012 Bulletin of the Korean Chemical Society Vol.33 No.10
Ionic liquids (ILs) have been extensively investigated as promising alternatives to conventional organic solvents such as sulfolane and N,N-dimethylformamide for the selective extraction of aromatic hydrocarbons from the C6-C10 hydrocarbon mixtures produced from the cracking processes of naphtha and light oils. The most important advantage of ILs over conventional organic solvents is that they are immiscible with aliphatic hydrocarbons, and thus the back extraction of ILs from the raffinate phases and top hydrocarbon-rich layers is not necessary. In this paper, a brief review on the state of the art in the utilization of ILs for aromatics separation is presented.
Preparation of Porous Carbons from Sugars and their Application for Carbon Capture
Anwar Md. Hossain,박서경,김훈식,이제승 대한화학회 2015 Bulletin of the Korean Chemical Society Vol.36 No.4
Porous carbon materials derived from sugars have been prepared by a new method using silica aerogel as a template. The silica aerogels were prepared by the reaction of tetramethyl orthosilicate (TMOS) and formic acid in the presence of sugar (d-fructose, d-glucose, or sucrose). Prepared silica aerogels containing sugar were carbonized under inert atmosphere followed by the removal of silicate with KOH solution to obtain the porous carbon materials. Prepared porous carbons with smaller amount of TMOS show higher surface areas (up to 312.2 m2/g) than the carbons prepared sugars themselves without using TMOS (108.7–277.3 m2/g). However, the surface areas of porous carbons decreased dramatically at the weight ratios of TMOS/sugar over 0.25. By increasing the surface areas of porous carbons, CO2 adsorption capacities of porous carbon materials increased up to 3.73 mmol/g.
Ionic Liquids as Benign Solvents for the Extraction of Aromatics
Hossain, Md. Anwar,Lee, Jee-Sun,Kim, Dai-Hyun,Nguyen, Dinh Quan,Cheong, Min-Serk,Kim, Hoon-Sik Korean Chemical Society 2012 Bulletin of the Korean Chemical Society Vol.33 No.10
Ionic liquids (ILs) have been extensively investigated as promising alternatives to conventional organic solvents such as sulfolane and N,N-dimethylformamide for the selective extraction of aromatic hydrocarbons from the $C_6-C_{10}$ hydrocarbon mixtures produced from the cracking processes of naphtha and light oils. The most important advantage of ILs over conventional organic solvents is that they are immiscible with aliphatic hydrocarbons, and thus the back extraction of ILs from the raffinate phases and top hydrocarbon-rich layers is not necessary. In this paper, a brief review on the state of the art in the utilization of ILs for aromatics separation is presented.
GAZI, Md. Abu Issa,RAHAMAN, Md. Atikur,HOSSAIN, G.M. Anwar,ALI, Md. Julfikar,MAMOON, ZahidurRahman Korea Distribution Science Association 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.2
The aim of this study is to determine the factors that affect customer satisfaction in the banking sector of Bangladesh because the economic growth and stability of a country depends on the soundness of its banking sector. The study tries to investigate and assess the quality of service on customer satisfaction in the banking sector. As a sample, data were collected from 382 respondents who were customers of 32 selected commercial banks of Bangladesh. A pre-structured questionnaire was used to collect the required data and information. OLS regression model and descriptive statistical tools were used to analyze data. The results of this study reveal that the quality of service (e.g., tangibility, reliability, and empathy) has a statistically significant impact on customer satisfaction. The results also show that there is a positive correlation between the customer satisfaction and service quality dimensions in the banking sector of Bangladesh. The present study finds that in the domestic banking industry the service quality dimensions (i.e., tangibility, reliability, and empathy) have significant positive impact on customer satisfaction. The findings of the present study suggest that Bank Supervisory Authority, Central Bank of Bangladesh, and Bank Management should give special emphasis to ensure maximum satisfaction of banks' customers.
CO<sub>2</sub> adsorption using carbon-coated silica aerogels
이제승,( Anwar Md. Hossain ),김훈식 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.1
Silica aerogels have been prepared using the aqueous solutions of sugar as a template at an ambient temperature and pressure. By the reaction of tetramethylorthosilicate (TMOS) and formic acid, hydrogels were prepared in the presence of sugar. Carbon-coated silica aerogels were obtained successfully by carbonization of silica aerogel containing sugars at 800°C and ambient pressure under nitrogen atmosphere. The pore structure of silica aerogels were successfully controlled by varying the molar ratio of sugar and TMOS. Carbon-coated silica aerogels have surface areas at a range of 0.6-350 ㎡ g<sup>-1</sup> and show CO<sub>2</sub> adsorption capacity at a range of 0.1-1.5 mmol g<sup>-1</sup> at room temperature.
Miah, Md. Danesh,Hossain, Mohammed Anwar,Muhammed, Nur,Sin, Man Yong Korean Society of Forest Science 2006 한국산림과학회지 Vol.95 No.5
Neem tree (Azadirachta indica), native to the Indian sub-continent, has been known since the ancient time for its medicinal and insect repellent properties. In recent years, Neem has attracted global attention due to its potential as a source of natural drugs and also environment-friendly pesticides. In the households. The distribution and traditional practice on Neem can be important to the agriculturist, ethno-pharmaceutical developers and to the rural development practitioners in Bangladesh. An exploratory survey on the distribution and traditional practice on Neem tree in the rural homesteads of Chittagong coastal plain, Bangladesh, was conducted over a period of three months from September 2002 to November 2002. It was found that maximum, 64% households used seedling as planting material having 40% maximum sources Within the major tree species present in the homesteads, Neem accounted for 12% among the total individuals. It was found that the availability of Neem trees was found maximum, 31%, in the homesteads of medium sized households. Maximum, 42% individuals of Neem were found within the DBH of 10.1 to 20 cm; and 37% within the 3.1 to 6 m height classes. Neem trees were found to be used maximum, 88% for furniture. The findings of the study will be of immense importance for the rural development practitioners and ethno pharmacological developers in Bangladesh.