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| 1 | Mechanism of Salt Tolerance in Rice显示文摘Shaheen Basma ti was evolved as a salt tolerant fine rice va riety by the Soil Salinity Research Institute,Pindi Bhattian, Pakistan. Water culture studies were conducted to investigate the physiological mechanismexercised by this variety in particular and rice plant in general to face the saline environment. Performanceof this rice variety and the concentration and uptake of ions were studied under stress of three salinity levels(30, 60 and 90 mmol L-1) created with NaCl. Recorded data indicated that shoot dry matter was notsignificantly affected by all the three levels of salinity. However, NaCl levels of 60 and 90 mmol L-1 affectedthe root dry matter significantly. Sodium concentration and uptake was enhanced significantly in root andshoot at the first level of salinity (30 mmol L-1) but thereafter the differences were non-significant, indicatingthe preferential absorption of this cation. The K concentration decreased significantly in shoots at all thelevels. The impact was less pronounced in roots as far as K absorption was concerned. The effect on Ca andMg concentrations was not significant. The values of K:Na, Ca:Na and (Ca+Mg):Na ratios in shoot and rootwere comparatively low under stress conditions, indicating that selective ion absorption may be the principalsalt tolerance mechanism of variety Shaheen Basmati when grown in a saline medium. | N.HUSSAIN A.ALI G.SARWAR F.MUJEEB M.TAHIR | 2003 | Pedosphere2003，13，3： | 35 |
| 2 | Chemical study of limestone and clay for cement manufacturing in Darukhula,Nizampur District,Nowshera,North West Frontier Province(N.W.F.P.),Pakistan显示文摘Limestone and clay samples were collected from Darukhula and adjoining areas of the Nizampur District,Nowshera,N.W.F.P.,Pakistan,and analyzed for different parameters in order to search for new reserves of suitable material for the manufacture of different types of cements in N.W.F.P.It was found that the area under study contains three types of limestones,including high grade limestone,Darukhula limestone and siliceous limestone,which contain 53%,49.03% and 45.19% CaO,respectively,and three types of clay,including maroon color,yellow to yellowish-green color and green color clay containing 57.76%,65.47% and 61.24% SiO2,respectively.Chemical analysis of the limestone and clay samples collected from the deposits in the area under study showed that all the elements found in these samples are within the range of permissible limits for the production of high-strength Portland cement,sulphate resisting cement and white cement.This paper covers the detailed version of the potential raw material deposits at Darukhula and adjoining areas of the Nizampur District. | Khurshid Ali Noor-ul-Amin M.Tahir Shah | 2008 | Chinese Journal Of Geochemistry2008，27，3： | 4 |
| 3 | A Novel Computerized Water Level Control System of PWR Steam Generator of Nuclear Power Plant显示文摘NomenclaturesAArea(m2)EEnergyControl(J)fPressureLossCoeficientaVoidFractionHSpecificEnthaply(J/kg)IInertance(m)KFrictionLossC... | M.Tahir Khaleeq Lang Wenpen He Guosen (School of Automation) | 1998 | Advances in Manufacturing1998，，3： | 1 |
| 4 | First report of Tomato leaf curl New Delhi virus infecting Eclipta prostrata in Pakistan显示文摘 | M. S.Haider M.Tahir S.Latif R. W.Briddon | 2006 | Plant Pathology2006，，： | 1 |
| 5 | Transient Analysis of Steam Generator in PWR Nuclear Power Plant显示文摘NomenclatureAArea(m2)DhHydraulicDiameter(m)EEnergyContent(J)fPressureLossCoeficientαVoidFractionHSpecificEnthalpy(J/kg)IInert... | M.Tahir Khaleeq Lang Wengpeng He Guoseng (School of Automation) | 1998 | Advances in Manufacturing1998，，2： | 1 |
| 6 | Symmetry solutions of a nonlinear elastic wave equation with third-order anharmonic corrections显示文摘Lie symmetry method is applied to analyze a nonlinear elastic wave equation for longitudinal deformations with third-order anharmonic corrections to the elastic energy. Symmetry algebra is found and reductions to second-order ordinary differential equations (ODEs) are obtained through invariance under different symmetries. The reduced ODEs are further analyzed to obtain several exact solutions in an explicit form. It was observed in the literature that anharmonic corrections generally lead to solutions with time-dependent singularities in finite times. Along with solutions with time-dependent singularities, we also obtain solutions which do not exhibit time-dependent singularities. | M.Tahir Mustafa Khalid Masood | 2009 | Applied Mathematics and Mechanics(English Edition)2009，30，8： | 1 |
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