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Articles by Muhammad Arif
Total Records ( 7 ) for Muhammad Arif
  Muhammad Sajid , Muhammad Ishtiaq , Faridullah Wazir and Muhammad Arif
  To Investigate the effect of different sowing methods on the performance of potato cultivars, an experiment was carried out at potato section, ARI, Tarnab, Peshawar during autumn 1996-97. Results revealed that plant emergence (91.11%), plant spread after 60 days of planting (48.38 %) and yield per hectare (14.02 tons/ha) were significantly higher when tubers were planted on plain soil, covered with soil from one side. Tubers planted on top of the ridge produced the tallest plants (49.71 cm). Maximum number of green potatoes (4.83 %) recorded when tubers were planted in furrows. Of the three cultivars, emergence of Cardinal was better (83.75%) and exhibited more plant spread after 60 days (44.63 %) of planting and more yield per hectare (13.07 tons/ha) as compared to the other two cultivars. Cultivar Desiree produced the tallest plants (45.03 cm) while cv., Ultimus produced significantly more tubers per plant (7.08). Planting the tubers on plain soil covering it with one side was found to be the best method of potato cultivation and Cardinal is the highest yielding cultivar and hence recommended for the growers of Peshawar region.
  Muhammad Arif , Huang Xinhan and Wang Min
  Not Available
  Muhammad Arif , Huang Xinhan and Wang Min
  3D reconstruction problem from images can be classified into three strata each of which is equivalent to the estimation of a specific geometry group. The simplest being projective, then affine, next metric and finally Euclidean structure. The advantage of stratification is that the images do not need to be from calibrated cameras in order to obtain reconstruction. In this paper results for both camera calibration and reconstruction are presented to verify that it is possible to obtain a 3D model directly from features in the images for man-made world.
  Huang Xinhan , Muhammad Arif and Wang Min
  Intelligent control, which includes fuzzy, neural, neuro-fuzy and evolutionary control, is result of applying computational intelligence to the control complex systems. This class of unconventional control system differs radically from conventional (or hard control) system that are based on classical and modern control theory. The techniques of intelligent control are being applied increasingly to industrial control problems and are leading to solutions where conventional control methods have proved unsuccessful. This paper reviews computational intelligence (branch of soft computing) which includes expert system, fuzzy logic, artificial neural networks and evolutionary computing with emphasis on its application to control engineering.
  Gulzar Ahmad , Amanullah Jan , Inamullah and Muhammad Arif
  Experiments were conducted at Cereal Crops Research Institute Pirsabak Nowshera, Pakistan, during 2003-04 and 2004-05 to evaluate the impact of nitrogen (N) and sulfur (S) levels, time and methods of application on Canola (Brassica napus L. cv. Bulbul-98) under irrigated conditions. Four levels of S (0, 20, 40 and 60 kg S ha-1) and three levels of N (80, 120 and 160 kg N ha-1) and a control treatment with both nutrients at zero level were applied as a sole dose at sowing, or in two split applications (50% at sowing + 50% at leaf rosette stage), or three split applications (1/3rd at sowing + 1/3rd at leaf rosette stage+ 1/3rd at flowering). The experiments were laid out in Randomized Complete Block (RCB) Design with split plot arrangement having four replications. Treatments comprising N and S levels were applied to main plots while time of application treatments were assigned to sub plots. Analysis of the data collected from the experiments indicated that maturity of canola was delayed as N rate was increased. Increasing levels of N had progressively enhanced plant height, leaf area index and CGR up to the highest level of 160 kg N ha-1. However, harvest index, was increased up to 120 kg N ha-1. The influence of S was non-significant on days to maturity while leaf area index and harvest index, were increased significantly when S rate was increased up to the 40 kg S ha-1. However increasing rate of S continuously enhanced plant height and CGR up to the highest level of 60 kg S ha-1. There was no significant influence of the time of application of N and S on plant height, leaf area index and CGR. However, sole application of N and S at sowing resulted in early maturity and three-split applications significantly decreased harvest index of canola.
  Hamad Siddiqui , Tariq Masud and Muhammad Arif
  pH and temperature conditions do effect bacterial growth and phage infectivity and development. Bacteria grew better in media at pH 7.0 as compared to other tested pH. Most of these phages showed earlier lysis of host bacteria in cultures at pH 6.5 and maximum phage titre was recorded at pH 7.0. In case of temperature bacteria showed better growth rate at 37°C as compared to 32 and 42°C respectively.
  Khair Mohamamd Kakar , Muhammad Arif and Shaukat Ali
  NP levels of 120:60, 180:80 and 240:100 kg ha-1, seed rates of 100, 125 and 150 kg ha-1 and row spacing of 15, 30 and 45 cm were studied in the experiment. Tillers m-2, plant height, thousand grain weight, grain yield and biological yield were significantly affected by NP levels while tillers m-2 and plant height of wheat were significantly affected by seed rates and row spacing as well.
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