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1.
用后硫化稳定剂部分代替硼酰化钴对钢丝帘线与橡胶粘合性能的影响MurshidHasametal.著盖雪峰译涂学忠校随着轮胎技术的发展,在大多数发达国家,子午线轮胎已占轮胎市场的90%—95%。钢丝帘线已成为子午线轮胎最好的胎体和带来层骨架材料。钢丝帘线... 相似文献
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Ghulam Murshid Azmi Mohd Shariff K. K. Lau Mohammad Azmi Bustam Faizan Ahmad 《International Journal of Thermophysics》2011,32(10):2040-2049
Physical properties such as density, viscosity, refractive index, surface tension, and thermal stability of 2-amino-2-hydroxymethyl-1,3-propanediol
(AHPD) were experimentally measured. All the experimental measurements were made over a wide range of temperatures from (298.15
to 333.15) K and AHPD concentrations of (1, 7, 13, 19, and 25) mass%. An overall decrease in all the measured physical properties
was observed with increasing temperature. The experimental results are presented as a function of temperature and AHPD mass
fraction. All the measured physical properties were correlated as a function of temperature. Thermal decomposition of pure
and aqueous solutions of AHPD was investigated using a thermo-gravimetric analyzer (TGA) at a heating rate of 10 K · min−1. 相似文献
3.
In the present investigation, a microbial consortium consisting of four bacterial strains was selected for the treatment of pharmaceutical industry wastewater. The consortium was immobilized on a natural support matrix-Luffa and used for the treatment of real-time pharmaceutical wastewater in batch and continuous processes. The batch process was carried out to optimize the culture conditions and monitor the enzymatic activity. An array of enzymes such as alcohol dehydrogenase, aldehyde dehydrogenase, monooxygenase, catechol 2,3-dioxygenase and hydroquinol 1,2-dioxygenase were produced by the consortium. The kinetics of the degradation in the batch process was analyzed and it was noted to be a first-order reaction. For the continuous study, an aerobic fixed-film bioreactor (AFFBR) was utilized for a period of 61 days with variable hydraulic retention time (HRT) and organic loading rate (OLR). The immobilized microbes treated the wastewater by reducing the COD, phenolic contaminants and suspended solids. The OLR ranged between (0.56 ± 0.05) kg COD·m-3 d-1 to 3.35 kg COD·m-3·d-1 and the system achieved an average reduction of 96.8% of COD, 92.6% of phenolic compounds and 95.2% of suspended solids. Kinetics of the continuous process was interpreted by three different models, where the modified Stover Kincannon model and the Grau second-order model proved to be best fit for the degradation reaction with the constant for saturation value, KL being 95.12 g·L-1·d-1, the constant for maximum utilization of the substrate Umax being 90.01 g·L-1 d-1 and substrate removal constant KY was 1.074 d-1 for both the models. GC-MS analysis confirmed that most of the organic contaminants were degraded into innocuous metabolites. 相似文献
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Muhammad Shuaib Shaikh Azmi Mohd Shariff Mohd Azmi Bustam Ghulam Murshid 《中国化学工程学报》2015,23(3):536-540
The physicochemical properties, including the density, viscosity, and refractive index of aqueous solutions of sodium glycinate as a solvent for CO2 absorption in the non-precipitation regime were measured under the wide temperature range of 298.15 to 343.15 K. The concentration of the sodium glycinate in an aqueous form in the non-precipitation regime was identified up to 2.0 mol·L?1. The coefficients of thermal expansion values were estimated from measured density data. It was found that, the densities, viscosities and refractive indices of the aqueous sodium glycinate decrease with an increase in temperature, whereas with increasing sodium glycinate concentration in the solution, all three properties increase. Thermal expansion coefficients slightly increase with rising temperature and concentration. The measured values of density, viscosity and refractive index were correlated as a function of temperature by using the least squares method. The predicted data obtained from correlation equations for all measured properties were in fairly good agreement with the experimental data. 相似文献
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Imam Murshid Sun Yufeng Fujii Hidetoshi Ma Ninshu Tsutsumi Seiichiro Murakawa Hidekazu 《Metallurgical and Materials Transactions A》2017,48(1):208-229
Metallurgical and Materials Transactions A - Joining thick sections of aluminum alloys by friction stir welding (FSW) in a single pass needs to overcome many challenges before it comes to... 相似文献
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Anshari Md Anwar Ali Mishra Rajnish Imam Murshid Pandit Dewanand Jha Kishor Kumar Kesharwani Rahul Kar Manoranjan Chinthapenta Viswanath 《Metallurgical and Materials Transactions A》2023,54(3):869-895
Metallurgical and Materials Transactions A - The periodic structural characteristics of the grains in the overlapping region of the WAAM deposited additive bead translate into spatially dependent... 相似文献
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We have recently observed that the selective adenosine A3 receptor agonist N6-(3-iodobenzyl)-adenosine-5'-N-methyluronamide (IB-MECA) augments interleukin-10 and inhibits tumor necrosis factor-alpha production in endotoxemic mice. In the present study, we extended our investigations into the effect of this compound on the bacterial lipopolysaccharide (endotoxin)-induced inflammatory response in the BALB/c, as well as in the C57BL/6 interleukin-10+/+ and the interleukin-10 deficient C57BL/6 interleukin-10(0)/0 mice strains. In the BALB/c mice, i.p. pre-treatment with IB-MECA (0.2 and 0.5 mg/kg) decreased lipopolysaccharide (60 mg/kg i.p.)-induced plasma levels of interleukin-12 (p40 and p70), interferon-gamma, and nitrite/nitrate (breakdown products of nitric oxide (NO)). On the other hand, pre-treatment with this compound failed to influence lipopolysaccharide-induced plasma interleukin-1 alpha, interleukin-6, and corticosterone concentrations. Similar to its effect in BALB/c mice, IB-MECA enhanced the release of interleukin-10 in the C57BL/6 interleukin-10+/+ mice. Furthermore, IB-MECA inhibited the production of interleukin-12, interferon-gamma, and NO in both the C57BL/6 interleukin-10+/+ and C57BL/6 interleukin-10(0)/0 mice, suggesting that the inhibition of pro-inflammatory cytokine production by this compound is independent of the increased release of interleukin-10. Finally, pre-treatment with this compound protected mice against lipopolysaccharide (60 mg/kg i.p.)-induced lethality. These results indicate that stimulation of adenosine A3 receptors has potent anti-inflammatory effects and may represent a potential strategy in the treatment of septic shock and other inflammatory diseases. 相似文献
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Deep eutectic solvents (DESs) have drawn a growing research interest for applications in a wide range of scientific and industrial arenas. However, a limited effort has been reported in the area of gas separation processes and particularly the carbon dioxide capture. This study introduces a novel set of DESs that were prepared by complexing ethylenediamine (EDA), monoethanolamine (MEA), tetraethylenepentamine (TEPA), triethylenetetramine (TETA) and diethylenetriamine (DETA) as hydrogen bond donors to monoethanolamide hydrochloride (EAHC) salt as a hydrogen bond acceptor. The absorption capacity of CO2 was evaluated by exploiting a method based on measuring the pressure drop during the absorption process. The solubility of different DESs was studied at a temperature of 313.15 K and initial pressure of 0.8 MPa. The DES systems 1EAHC:9DETA, 1EAHC:9TETA and 1EAHC:9TEPA achieved the highest CO2 solubility of 0.6611, 0.6572 and 0.7017 mol CO2·(mole DES)−1 respectively. The results showed that CO2 solubility in the DESs increased with increasing the molar ratio of hydrogen bond donor. In addition, the CO2 solubility increased as the number of amine groups in the solvent increases, therefore, increasing the alkyl chain length in the DESs, resulted in increasing the CO2 solubility. FTIR analysis confirms the DES synthesis since no new functional group was identified. The FTIR spectra also revealed the carbamate formation in DES-CO2 mixtures. In addition, the densities and viscosities of the synthesized DESs were also measured. The CO2 initial investigation of reported DESs shows that these can be potential alternative for conventional solvents in CO2 capture processes. 相似文献
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