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Articles by Abdur Rashid
Total Records ( 8 ) for Abdur Rashid
  Abdur Rashid and Himayatullah
  An experiment was conducted to study the feasibility of legumes intercropping in sorghum based cropping system at 60,30/90 and 30/120 cm spaced single, double and triple row strips, respectively. The data showed that planting pattern of double row strips (30/90 cm) significantly (P< 0.05) increased the grain yield (5.95 t ha-1) of sorghum than single (5.65 t ha-1) or triple row strip (5.53 t ha-1) planting pattern. Legumes associations decreased the sorghum grain yield by 3.72 and 6.60% then pure stands of sorghum. The interaction between planting geometry and associated legumes culture was non-significant in both the years. However, double row strip planting with two rows of intercrop between the 90 cm space was found superior to other treatment combinations. Thus, this planting technique of sorghum-based legumes intercropping can be recommended for adoption to the farmers.
  Iftikhar Ahmad and Abdur Rashid
  In this study, we present a comparison of traditional and modern techniques for monitoring hydropower plants. Traditionally, in Pakistan, the maintenance of hydropower plants is based on periodic-based corrective techniques, which involves shutdowns of plants over specified periods. The method not only restricts the operator to wait for the periodic shutdown for routine maintenance, but also proves to be more costly in case of major defects occurring in the plant. We propose on-line monitoring of the equipment, which involves continuous observation of the system parameters without system or equipment being stopped. The outcome is the early detection of any abnormality/fault and limiting of the severity of any potential damage to the system.
  Md. Hasanul Kabir , M. Abdullah-Al-Wadud , Mohammad A.U. Khan , Abdur Rashid and Saghir Ahmad
  In this study, we present an image contrast enhancement method based on block-wise intensity pair distribution. The proposed algorithm takes the local intensity-pair distribution, instead of using the intensity-pair distribution of the whole image. To deal with the issues of contrast stretch and over-enhancement, a linear magnitude mapping function is used as a substitute to a non-linear one. This linear mapping preserves the relative contrast enhancement ratio between the gray levels. The local information from blocks facilitates contrast enhancement, enhances subtle edge information and eliminates noises from the image. The proposed algorithm is suitable for detail analysis of image features.
  Bilal Ahmed , Tahir Rasheed , Mohammad A. U. Khan , Abdur Rashid and Saghir Ahmad
  Chest radiographs play an important role in early diagnosis of lung cancer. Due to overlapping of the nodule with ribs and clavicles, the nodule is hard to detect in conventional chest radiographs. In this study A technique is presented based on Independent Component Analysis (ICA) for the suppression of posterior ribs and clavicles which will enhance the visibility of the nodule and will reduces the stress on automatic nodule detection module.
  Abdur Rashid
  In this paper, a Fourier Pseudospectral Approximation combined with the Midpoint Euler time differencing technique for solving Burger`s equation is proposed. The stability and convergence are investigated. The numerical results are also presented.
  Abdur Rashid , Rahmat Ullah Khan and Himayatullah Khan
  To investigate the reciprocal effect of crops grown together for improvement of total production, an experiment was conducted at the Arid Zone Research Institute Dera Ismail Khan. The leguminous crops of mung and guar were grown alone and in combination with sorghum in Randomized Complete Block Design (RCBD) with four replications. The results showed that the physiological growth, yield components and grain yield of the component crops were significantly affected by each other. Data on plant height, leaf area index, grain weight, pods/plant, grains/pod and grain yield of each specie evinced decreasing trend in mixed culture compared to sole crops. Despite reduction in grain yield of sorghum, mung and guar due to reciprocal effect on each other, the grain equivalent yield total was increased in either case. The profit of 6.49 and 6.28% was achieved with mung and guar compared to sole cropping of sorghum, respectively. These findings suggest that the over all agricultural productivity can be increased through mixed cropping and efficient use of land resources in Pakistan.
  Rahmat Ullah Khan , Abdur Rashid , Ahmad Khan and Noor Alam Khan
  Field experiments on seed sizes were conducted during 1994-95 and 1995-96 to determine its effect on yield component and seed yield of wheat cv. Pirsabak-85. The treatments consisted of Large and small seed sizes. The data indicated that crop seeded with large seed size significantly produced maximum seed yield by increased number of plant stand/m2 and generally provided the greater seed weight both the years respectively.
  Rahmat Ullah Khan , Abdur Rashid , Zulfiqar Ali and Muhammad Sohail Khan
  This study was conducted to determine the effect of water supply at critical growth stage of sorghum in Arid Zone Research Institute, D.I. Khan. The results indicated that the yield components and grain yield were significantly affected by water supply. Irrigation applied at heading stage of the crop significantly increased plant height, maturity period, fresh and dry weight of heads plot-1, 1000 grain weight and grain yield of sorghum irrespective to cultivars. Maximum grain yield of 3319 kg ha-1 was obtained with irrigation as against 2206 kg ha-1 obtained from un-irrigated treatments. The plant height, fresh and dry weight of heads plot-1, 1000 grain weight and grain yield of different cultivars were also different significantly irrespective to irrigation. Maximum grain yield of 2976 kg ha-1 was produced by the cultivar DS-2000 compared to 2550 kg ha-1 by DS-97 Yarik. The interaction between irrigation and cultivar as regards yield and yield components of sorghum was non significant. The findings of this study suggested that the grain yield of sorghum can be increased by 50% with irrigation applied at the heading of sorghum.
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