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| 1 | Extraction and characterization of alumina nanopowders from aluminum dross by acid dissolution process显示文摘A significant amount of aluminum dross is available as a waste in foundry industries in Bangladesh. In this study, alumina was extracted from aluminum dross collected from two foundry industries situated in Dhamrai and Manikgang, near the capital city, Dhaka. Aluminum dross samples were found to approximately contain 75wt% Al2O3 and 12wt% SiO2. An acid dissolution process was used to recover the alumina value from the dross. The effects of various parameters, e.g., temperature, acid concentration, and leaching time, on the extraction of alumina were studied to optimize the dissolution process. First, Al(OH)3 was produced in the form of a gel. Calcination of the Al(OH)3 gel at 1000°C, 1200°C, and 1400°C for 2 h produced θ-Al2O3,(α+θ)-Al2O3, and α-alumina powder, respectively. Thermal characterization of the Al(OH)3 gel was performed by thermogravimetric/differential thermal analysis(TG/DTA) and differential scanning calorimetry(DSC). The phases and crystallite size of the alumina were determined by X-ray diffraction analysis. The dimensions of the alumina were found to be on the nano level. The chemical compositions of the aluminum dross and alumina were determined by X-ray fluorescence(XRF) spectroscopy. The microstructure and morphology of the alumina were studied with scanning electron microscopy. The purity of the alumina extracted in this study was found to be 99.0%. Thus, it is expected that the obtained alumina powders can be potentially utilized as biomaterials. | Saifur Rahman Sarker Zahangir Alam Rakibul Qadir M A Gafur Mohammad Moniruzzaman | 2015 | International Journal of Minerals,Metallurgy and Materials2015，22，4： | 20 |
| 2 | Kinetic adsorption of application of carbon nanotubes for Pb(Ⅱ) removal from aqueous solution显示文摘The capability of carbon nanotubes (CNTs) to adsorb lead (Pb) in aqueous solution was investigated. Batch mode adsorption experiment was conducted to determine the effects of pH, agitation speed, CNTs dosage and contact time. The removal of Pb(Ⅱ) reached maximum value 85% or 83% at pH 5 or 40 mg/L of CNTs, respectively. Higher correlation coeffcients from Langmuir isotherm model indicates the strong adsorptions of Pb(Ⅱ) on the surface of CNTs (adsorption capacity Xm = 102.04 mg/g). The results indicates that the highest percentage removal of Pb (96.03%) can be achieved at pH 5, 40 mg/L of CNTs, contact time 80 min, and agitation speed 50 r/min. | Nassereldeen A Kabbashi Muataz A Atieh Abdullah Al-Mamun Mohamed E S Mirghami MD Z Alam Noorahayu Yahya | 2009 | Journal of Environmental Sciences2009，21，4： | 15 |
| 3 | Pyogenic liver abscess: Changing patterns in approach显示文摘AIM: To define optimum management of the pyogenic liver abscess and assess new trends in treatment. METHODS: One hundred and sixty nine patients with pyogenic liver abscess managed at Sher-i-Kashmir In- stitute of Medical Sciences, Srinagar, Kashmir (India) from July 2001 to August 2006 were studied to evaluate and define the optimum treatment. RESULTS: Mortality in the surgically treated group of patients was 9.4% (12/119), while those treated non-surgically had a fatality rate of 16.66% (7/42). Multiple liver abscesses treated surgically had a surprisingly low mortality of 30%. The biliary tract (64.97%) was the most common cause of liver abscess. Multiple abscesses, mixed organisms and abscess complications are all associated with a significantly increased mortality. However, the lethality of the primary disease process was the most important factor in determining survival.CONCLUSION: Transperitoneal surgical drainage and antibiotics are the mainstay of treatment. Percutaneous drainage is recommended for high risk patients only. | Ajaz A Malik Shams UL Bari Khawaja Abdul Rouf Khurshid Alam Wani | 2010 | World Journal of Gastrointestinal Surgery2010，2，12： | 15 |
| 4 | 在良性的胆汁的阻塞的 choledochoduodenostomy 的长期的结果显示文摘 AIM:To determine the long-term results of choledochodudenostomy in patients with benign billiary obstruction.METHODS:This prospective study was conducted at Sheri Kashmir Institute of Medical Sciences Srinagar Kashmir,India over a period of 10 years from January 1997 to December 2007.The total number of patients who underwent choledochoduodenostomy during this period was 270.On the basis of etiology of biliary tract obstruction,patients were divided into a calculus group,an oriental cholangiohepatitis group,a benign biliary stricture group and others.Patients were followed for a variable period of 13 mo to 15 years.RESULTS:Choledochoduodenostomy(CDD) with duodenotomy was performend in four patients.CDD with removal of T-tube,CDD with left hepatic lobectomy and CDD with removal of intra biliary ruptured hydatid was performed in three patients each.In the remaining patients only CDD was performed.Immediate post operative complications were seen in 63(23%) patients,while long-term complications were seen in 28(11%) patients,which were statistically significant.Three patients died during hospitalization while four patients died in the late post-operative period.CONCLUSION:Our conclusion is that CDD is safe and produces good long term results when a permanent biliary drainage procedure is required. | Ajaz A Malik Shiraz A Rather Shams UL Bari Khursheed Alam Wani | 2012 | World Journal of Gastrointestinal Surgery2012，4，2： | 7 |
| 5 | Cytokine profile in Egyptian hepatitis C virus genotype-4 in relation to liver disease progression显示文摘AIM: To observe the imbalance between T helper cell Th1 and Th2 cytokines in several chronic hepatitis disease at different stages of disease progression.METHODS: We measured the cytokine levels of Th1 (IL-2 and IL-2R), Th2 (IL-10) and the pro-inflammatory cytokines (IL-6 and IL-6R and TNF and TNF-RⅠ and Ⅱ)by the ELISA technique in the sera of 33 hepatocellular carcinoma (HCC) patients and 20 chronic liver disease (CLD) patients. In addition, 20 asymptomatic hepatitis C virus carriers and 20 healthy subjects negative for hepatitis C virus(HCV) markers served as controls.RESULTS: Anti-HCV antibodies were found to be positive in 94% of HCC cases and 75% of CLD cases.On the other hand, HCV viremia was detected using RTPCR in 67% of HCC cases and 65% of CLD cases. HBsAg was positive in 9% of HCC cases and 30% of CLD cases.Also bilharzial-Ab was positive in 55% of HCC cases,65% of CLD cases and in 70% of asymptomatic carriers (ASC). HCC patients had significantly higher values of IL-2R, TNF-RⅡ (P<0.001), and TNF-RⅠ (P>0.05), but lower TNFα (P<0.001) and IL-6 (P = 0.032) in comparison to ASC. But, in comparison to non-cancer controls, HCC patients had higher values of IL-2R, IL-6R, TNF-RⅠ and TNF-RⅡ, but lower TNF-α (P<0.001). CLD patients had higher IL-2R, TNF-RⅠ, and TNF-RⅡ (P<0.001) than ASC. But, in comparison to non-cancer controls, CLD patients had higher values of IL-2R, TNF-RⅠ and TNF-RⅡ, but lower TNF-α (P<0.001). IL-10 was higher (though not significantly) in HCC and CLD patients than in symptomatic carriers and non-cancer controls.CONCLUSION: Liver disease progression from CLD to HCC due to HCV genotype-4 infection is associated with an imbalance between Th1 and Th2 cytokines. IL-2R,TNF-RⅠ, and TNF-RⅡ could be used as potential markers. | Abdel-Rahman N Zekri Mohammed S El-Din Ashour Ahmed Hassan Hanaa M Alam El-Din Amal MR El-Shehaby Maha A Abu-Shady | 2005 | World Journal of Gastroenterology2005，11，42： | 4 |
| 6 | MHD free and forced convection boundary layer flow along a vertical porous plate显示文摘 | Hossaln M A Alam K C A Rees D A S | 1997 | Appl Mech Engrg1997，2，1： | 1 |
| 7 | Reliability analysis and full - scale testing of transmission tower显示文摘 | Alam M J Santhakumar A R | 1994 | Journal of Structural Engineering ASCE1994，122，3： | 1 |
| 8 | Heme oxygenase-1/carbon monoxide: from basic science to therapeutic applications显示文摘 | Ryter S W Alam J Choi A M K | 2006 | Physiological Reviews2006，86，： | 1 |
| 9 | The Processes of Location Study for Developing Economic Zones under Public Private Partnership Model: Country Study on Bangladesh显示文摘 | Alam M Rashed A | 2014 | Journal of Economics and Business Research2014，17，2： | 1 |
| 10 | Influence of common purslane aqueous extracts on germination and seedling growth of rice显示文摘 | Alam S M Khan M A Mujtaba S M | 2004 | Pakistan Journal of Scientific and Industrial Research2004，47，4： | 1 |
| 11 | Embedded Capaci- tors in Printed Wiring Board:A Technological Review显示文摘 | Alam M A Azarian M H Pecht M G | 2012 | Journal of Electronic Materials2012，41，8： | 1 |
| 12 | Effect of planting tlmes,maturlty stages and iba in stem cuttings of bougainvillea (Bougainvilleas spectabilis ) 显示文摘 | Habib M A Alam K H Khanam M H A etal | 2007 | International Journal of Sustainable Agricultural Technology2007，3，4： | 1 |
| 13 | Oxidative DNA damage in the parkinsonian brain:an apparent selective increase in 8-hydroxyguanine levels in substantia nigra显示文摘 | ALAM Z I JENNER A DANIEL S E | 1997 | Neurochem1997，69，3： | 1 |
| 14 | New soluble n-type conjugated copolymer for light-emitting diodes显示文摘 | Tonzola C J Alam M M Jenekhe S A | 2002 | Adv Mater2002，14，： | 1 |
| 15 | Antibody response and pathological change in immunosuppressed chicks immunized and challenged against Newcastle disease显示文摘 | Alam K M T Lslam M A Rahmam M M | 1997 | Bangladesh Vet J1997，31，1： | 1 |
| 16 | A generalised increase in protein carbonyls in the brain in Parkinson's but not incidental Lewy body disease 显示文摘 | ALAM Z I DANIEL S E LEES A J | 1997 | J Neurochem1997，69，3： | 1 |
| 17 | Gonadal Sex Differentiation in the Malabar Grouper, Epinephelus Mala barieus 显示文摘 | MURATA R KARIMATA H ALAM M A | 2009 | AQUACULTURE2009，293，34： | 1 |
| 18 | Muhiobjective transportation problem with interval cost,source and destination parameters 显示文摘 | S K Das A Goswami S S Alam | 1999 | European Journal of Operational Research1999，117，1： | 1 |
| 19 | Efficacy and safety of Saccharo- myces boulardii in acute childhood diarrhea: A double blind ran- domised controlled trial 显示文摘 | Riaz M Alam S Malik A | 2012 | Indian J Pediatr2012，79，4： | 1 |
| 20 | Pregnenolone derivatives as potential anticancer agents 显示文摘 | CHOUDHARY M I ALAM M S RAHMAN A | 2011 | Steroids2011，76，14： | 1 |
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