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| 1 | Determination of consolidation behaviour of clay slurries显示文摘The main objective of this study was to determine the consolidation behaviour of clay slurries.A finegrained clay with high consistency limits(W_L = 180%,w_P= 120%) was investigated using conventional oedometer and bench-top centrifuge tests.Results indicated that the slurry had an apparent preconsolidation(due to initial conditions,electrochemical interactions,tortuous drainage,and thixotropic strength) from e = 5.7 to e = 5.5 followed by virgin compression.Likewise,the low hydraulic conductivity(10^(-10)-10^(-12) m/s) was due to low porosity(small pore throats) and high tortuosity(long flow paths).Unlike consolidation of soils,the c_v and m_v decreased with increasing σ' but increased with increasing e and k.The data from the two tests correlated well in the range of σ' = 10-65 kPa,e = 5.5-3.86,k= 1.7 × 10^(-10)-5×10^(-11) m/s,F_c = 1-40 MN.New equations were developed to correlate the consolidation parameters(e,σ',k) with F_c.The deviation of k beyond 40 MN(e = 4.65) was due to deviation from the initial straight line portion of the settlement curve in the centrifuge test. | Khan Faseel S. Azam Shahid | 2016 | International Journal of Mining Science and Technology2016，26，2： | 3 |
| 2 | Effects of the nitrification inhibitor nitrapyrin and the plant growth regulator gibberellic acid on yield-scale nitrous oxide emission in maize fields under hot climatic conditions显示文摘Nitrification inhibitors are widely used in agriculture to mitigate nitrous oxide(N_(2)O)emission and increase crop yield.However,no concrete information on their mitigation of N_(2)O emission is available under soil and environmental conditions as in Pakistan.A field experiment was established using a silt clay loam soil from Peshawar,Pakistan,to study the effect of urea applied in combination with a nitrification inhibitor,nitrapyrin(2-chloro-6-tri-chloromethyl pyridine),and/or a plant growth regulator,gibberellic acid(GA_3),on N_(2)O emission and the nitrogen(N)uptake efficiency of maize.The experimental design was a randomized complete block with five treatments in four replicates:control with no N(CK),urea(200 kg N ha^(-1))alone,urea in combination with nitrapyrin(700 g ha^(-1)),urea in combination with GA_3(60 g ha^(-1)),and urea in combination with nitrapyrin and GA_3.The N_(2)O emission,yield,N response efficiency,and total N uptake were measured during the experimental period.The treatment with urea and nitrapyrin reduced total N_(2)O emission by 39%–43%and decreased yield-scaled N_(2)O emission by 47%–52%,relative to the treatment with urea alone.The maize plant biomass,grain yield,and total N uptake increased significantly by 23%,17%,and 15%,respectively,in the treatment with urea and nitrapyrin,relative to the treatment with urea alone,which was possibly due to N saving,lower N loss,and increased N uptake in the form of ammonium;they were further enhanced in the treatment with urea,nitrapyrin,and GA_3 by 27%,36%,and 25%,respectively,probably because of the stimulating effect of GA_3 on plant growth and development and the reduction in biotic and abiotic stresses.These results suggest that applying urea in combination with nitrapyrin and GA_3 has the potential to mitigate N_(2)O emission,improve N response efficiency,and increase maize yield. | Khadim DAWAR Kamil SARDAR Mohammad ZAMAN Christoph MÜLLER Alberto SANZ-COBENA Aamir KHAN Azam BORZOUEI Ana Gabriela PÉREZ-CASTILLO | 2021 | Pedosphere2021，31，2： | 2 |
| 3 | Determination of the desiccation behavior of clay slurries显示文摘The main objective of this study was to determine the desiccation behavior of clay slurries. A clay slurry with high water adsorption capacity(W_L = 180%,W_P 60%,W_s = 20) was used to determine the soil water characteristic curve(SWCC), shrinkage curve, and hydraulic conductivity. The last parameter was determined similar to the Instantaneous Profile Method using evaporation tests. Results indicated that the clay slurry had an air entry value(AEV) of 1000 kPa and a residual suction of 5000 kPa that occurred at the plastic limit and the shrinkage limit, respectively. The discrepancy between theoretical and measured shrinkage limit was due to the gradual increase in clay particle contact. Unlike soils, the saturated hydraulic conductivity varied by two orders of magnitude(4×10 ~10 m/s at 20 kPa to 3 x 10 ~12 m/s at AEV). The unsaturated k further decreased to 10 ~14 m/s at 6 x 10~4 kPa beyond which vapor flow took place. | Khan Faseel Suleman Azam Shahid | 2017 | International Journal of Mining Science and Technology2017，27，6： | 2 |
| 4 | Prooxidant property of green tea polyphenols epicatechin and epigallocatechin-3-gallate: implications for anticancer properties 显示文摘 | Azam S Hadi N Khan NU | 2004 | Toxicology in Vitro2004，18，5： | 1 |
| 5 | Common Fixed Point Theorems in Complex Valued Metric Spaces 显示文摘 | Azam A Fisher B Khan M | 2011 | Numer Funt Anal Optim2011，32，3： | 1 |
| 6 | Study on the Abundance and Infestation of Blowfly During Drying of Fish in the Coastal Area of Bangladesh显示文摘 | Mohammed Ashraful Azam Khan Yusuf Sharif Ahmed Khan | 2002 | Journal of Biological Sciences2002，2，7： | 1 |
| 7 | Changes in the essential oil constituents of fennel (Foeniculum vulgate) as influenced by soil and foliar levels of N and P显示文摘 | KHAN M M A AZAM Z M SAMILrLLAH S | 1999 | Canadian Jourmd of Plant Science1999，79，58： | 1 |
| 8 | Com- parison of the styler and the gum elastic bougie in tracheal intubation in a simu- lated difficult airway 显示文摘 | KHAN RA KHAN FA AZAM M | 2014 | Anaesth Pain & Intensive Care2014，18，3： | 1 |
| 9 | Impregnation mode in wood plastic composite显示文摘 | M mozaffar Husain Mubarak A Khan M azam Ali | 1996 | Radiat Phys Chem1996，48，6： | 1 |
| 10 | 显示文摘 | Amir Azam Khan Jean Claude Labbe | 1997 | Journal of the European Ceramic Society1997，，17： | 1 |
| 11 | 显示文摘 | Amir Azam Khan Jean Claude Labbe | 1996 | Journal of the European Ceramic Society1996，，16： | 1 |
| 12 | Antimicrobial activity of metal oxide nanoparticles against Gram-positive and Gram-negative bacteria: a comparative study显示文摘 | Ameer Azam Adnan Memic Habib Khan Oves Ahmed | 2012 | International Journal of Nanomedicine . 2012 (defa)2012，，： | 1 |
| 13 | Hemodynamic effects of anesthetic indue-lion in patients treated with beta and calcium channel blockers 显示文摘 | Samad K Khan F Azam I | 2008 | Middle East J Anesthesiol2008，19，5： | 1 |
| 14 | Hemodynamic effects of anesthetic induction in patients treated with beta and calcium channel blockers显示文摘 | Samad K Khan F Azam I | 2008 | Middle East J Anesthesio12008，19，5： | 1 |
| 15 | Aluminum nitride-molybdenum ceramic matrix composites possessing high thermal shock resistance显示文摘 | Khan Amir Azam Labbe Jean Claud | 1997 | Materials Science and Engineering1997，，230： | 1 |
| 16 | Aluminum nitride-molybdenum ceramic matrix composites:influence of molybdenum addition on electrical,mechanical and thermal properties显示文摘 | Khan Amir Azam Labbe Jean Claud | 1997 | Journal of the European Ceramic Society1997，，17： | 1 |
| 17 | Hemodynamic effects of anesthetic induc- tion in patients treated with beta and calcium channel blockers 显示文摘 | Samad K Khan F Azam I | 2008 | Middle East J Anaesthesiol2008，19，5： | 1 |
| 18 | Aluminum nitride-molybdenum ceramic matrix composites:characterization of ceramics-metal interface显示文摘 | Khan A A Labbe J C Khan Amir Azam | 1996 | Journal of the European Ceramic Society1996，，16： | 1 |
| 19 | Prooxidant property of green tea polyphenols epicatechin and epigallocatechin-3-gallate:implications for anticancer properties显示文摘 | Azam S Hadi N Khan NU | 2004 | Toxicol Vitro2004，18，5： | 1 |
| 20 | Synthesis,Crystal Structure and Spectroscopic Properties of 1,2-Benzothiazine Derivatives:An Experimental and DFT Study显示文摘1,2-Benzothiazine derivatives methyl 3-methoxy-4-oxo-3,4-dihydro-2H-benzo[e] [1,2]thiazine-3-carboxylate 1,1-dioxide(1) and methyl 2-ethyl-3-hydroxy-4-oxo-3,4-dihydro-2Hbenzo[e][1,2]thiazine-3-carboxylate 1,1-dioxide(2) were synthesized, and characterized by spectroscopic techniques; 1H-NMR and infrared(IR) spectroscopy. Crystals of 1 and 2 were grown by slow evaporation of methanol and ethyl acetate, respectively and their crystal structures were investigated by single-crystal X-ray diffraction analysis. Geometric properties were calculated by the B3 LYP method of density functional theory(DFT) at the 6-31G+(d) basis set to compare with the experimental data. Simulated properties were found in strong agreement with the experimental ones. Intermolecular forces have also been modeled in order to investigate the strength of packing and strong hydrogen bonding was observed in both compounds 1 and 2. Electronic properties such as Ionization Potential(IP), Electron Affinities(EA) and coefficients of the highest occupied molecular orbital(HOMO) and the lowest unoccupied molecular orbital(LUMO) of com- pounds 1 and 2 were simulated for the first time. | MUHAMMAD Nadeem Arshad TARIQ Mahmood ATHER Faroque Khan MUHAMMAD Zia-Ur-Rehman ABDULLAH M.Asiri ISLAM Ullah Khan RIFFAT-Un-Nisa KHURSHID Ayub AZAM Mukhtar MUHAMMAD Tariq Saeed | 2015 | Chinese Journal of Structural Chemistry2015，34，1： | 1 |
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