Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Amrik S. Chawla"'
Publikováno v:
Journal of Hydraulic Engineering. 116:930-943
Hydrostatic pressures from reservoir and tail water act on the dam and occur within the dam and foundation as internal pressures in the pores, cracks, joints, and seams. Measurements in existing dams confirm that uplift pressures undoubtedly exist, n
Publikováno v:
Phytochemistry. 31:372-374
The alkaloids present in the flowers of Erythrina xbidwillii have been screened by GC-MS. A novel alkaloid, crythristeminc- N -oxide has been isolated and its structure established by spectroscopic methods.
Autor:
Akhilash Kumar, Amrik S. Chawla
Publikováno v:
Journal of Hydraulic Engineering. 111:455-466
A closed‐form solution is obtained with the help of the seepage theory and the Schwartz‐Christoffel transformation for determination of average uplift pressures for any section of hollow gravity dam. The average uplift pressure is calculated nume
Autor:
Amrik S. Chawla
Publikováno v:
Journal of the Hydraulics Division. 101:223-241
Until now no solution was available to determine the effect of plane drainage located anywhere between the two cutoffs. The problem is solved exactly by the use of conformal mapping. The equations for seepage discharge to the intermediate filter and
Autor:
Amrik S. Chawla
Publikováno v:
Journal of the Geotechnical Engineering Division. 102:15-29
Until now, no closed-form solution was available to determine the effect of deep drainage located below a flat floor with a cutoff. The problem is solved exactly using conformal mapping. The equation for seepage discharge to the drain and uplift pres
Autor:
Amrik S. Chawla, Heramb D. Sharma
Publikováno v:
Journal of the Irrigation and Drainage Division. 100:351-369
No solution for the problem of seepage from trapezoidal channels in homogenous and isotropic material to an interceptor drain and the main drainage at finite distance is available so far. This general problem is solved exactly by the use of conformal
Autor:
Heramb D. Sharma, Amrik S. Chawla
Publikováno v:
Journal of the Hydraulics Division. 105:877-897
Closed-form solution for the problem of seepage from channels in homogeneous and isotropic material extending up to finite depth with drainages at a finite distance from the canal and at finite depth has been obtained by the use of conformal mapping.
Autor:
Natthi Mal, Amrik S. Chawla
Publikováno v:
Journal of the Hydraulics Division. 105:257-273
Closed-form solution has been obtained with the help of the Schwartz-Christoffel transformation for the determination of uplift pressures on hollow gravity dams. The uplift pressures have been calculated numerically from the derived equations and plo
Publikováno v:
Journal of Hydraulic Engineering. 112:206-219
Until now no solution was available to determine the effect of plane drainage located anywhere between two end cutoffs of a flat floor founded on permeable soil of finite depth. An exact solution has been obtained using conformal mapping. Equations f
Publikováno v:
Phytochemistry. 24:1821-1823
The alkaloids present in the seeds of four Erythrina species, E. brucei, E. cochleata, E. thollonia and E. caribaea have been screened by GC/MS. A new alkaloid, erythrocarine, has been isolated from E. caribaea and characterized as a methylenedioxy a