OALib Journal期刊

ISSN: 2333-9721




9 ( 1 )

2019 ( 13 )

2018 ( 194 )

2017 ( 219 )


匹配条件: “Zahir ALI” ,找到相关结果约18461条。
Assessing Usefulness of High-Resolution Satellite Imagery (HRSI) in GIS-Based Cadastral Land Information System
Journal of Settlements and Spatial Planning , 2012,
Abstract: The development of a GIS-based cadastre primarily depends on the availability of reliable spatial and non-spatial datasets. Currently, the cadastral maps in Pakistan are mainly of paper format. Detailed study shows lack of standards in these paper mapping products with out-dated information. Therefore, these maps cannot be used directly as an input to a GIS-based cadastral Land Information System (LIS). Such a situation demands that all cadastral information in these traditional maps be timely maintained in standard forms with quality indicators as information for the users. Considering the present situation in Pakistan, this paper firstly elaborates the present cadastral mapping system and the methods used for producing, updating, and maintaining these cadastral data. This research paper investigates on the use of High-Resolution Satellite Imagery (HRSI) and Global Positional System (GPS) that constitute vital elements in timely maintaining many of the cadastral data in GIS-based cadastral LIS. The abilities of remote sensing imageries in cadastral mapping are then assessed using QuickBird high-resolution satellite images for two case study areas with different topography i.e. a flat and a mountainous area in the Khyber Pakhtunkhwa province of Pakistan. This study introduces the use of QuickBird panchromatic/colour imageries and the Garmin eTrex GPS navigation receiver to develop a method for cadastral surveying through on-screen digitisation techniques in the field on the soft copy of HRSI. This study shows that the cost and time can be reduced to its half if the cadastral maps are generated using the newly developed technique. Finally, the results are concluded for the use of HRSI data as an input to GIS-based cadastral information system in general and especially in Pakistan.
Implementing GIS-Based Cadastral and Land Information System in Pakistan
Zahir ALI,Muhammad SHAKIR
Journal of Settlements and Spatial Planning , 2012,
Abstract: The need for information, which is the basic necessity for carrying out any planning, development and management activity, can hardly be over-emphasized. With regard to the developing nations with inadequate resources, the need for having a reliable information base is even more important. The absence of the proper land records in the real land market is another difficulty being faced by many developing countries. The reason may be unclear delimitation of individual or group rights, insecure ownership etc. The necessity for a functioning land market opens the way not only for private development but also for public land acquisition and other means of ensuring that land is available for dwelling and other urban needs. In this way the development and implementation of country-wide digital cadastral information system is an area that needs urgent attention. It is felt that there is a need to at least initiate efforts towards achieving this formidable task in an organised manner. These initial efforts would pave the way to achieve the desired goals in the years to come and would take us out of this status quo situation. With the above background, this paper highlights all the constraints and limitations that will be encountered in the process of integrating legal and geometric cadastral information to develop a new digital cadastral system.
Statistical Analysis for the Abrasive Wear Behavior of Al 6061  [PDF]
Mohd Shadab Khan, Zahir Hasan, Yaqoob Ali Ansari
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2014, DOI: 10.4236/jmmce.2014.24034
Abstract: In the present study, a mathematical model has been developed to predict the abrasive wear behavior of Al 6061. The experiments have been conducted using central composite design in the design of experiments (DOE) on pin-on-disc type wear testing machine, against abrasive media. A second order polynomial model has been developed for the prediction of wear loss. The model was developed by response surface method (RSM). Analysis of variance technique at the 95% confidence level was applied to check the validity of the model. The effect of volume percentage of reinforcement, applied load and sliding velocity on abrasive wear behavior was analyzed in detail. To judge the efficiency and ability of the model, the comparison of predicted and experimental response values outside the design conditions was carried out. The result shows, good correspondence, implying that, empirical models derived from response surface approach can be used to describe the tribological behavior of the above composite.
Influence of triclosan and triclocarban antimicrobial agents on the microbial activity in three physicochemically differing soils of south Australia
Abid Ali, Muhammad Arshad, Zahir A. Zahir,Amer Jamil
Soil & Environment , 2011,
Abstract: Antimicrobial agents are being used in numerous consumer and health care products on account of which their annual global consumption has reached in millions of kilograms. They are flushed down the drain and become the part of wastewater and sewage sludge and end up in the ultimate sink of agricultural soils. Once they are in the soil, they may disturb the soil’s ecology as a result of which microbial activity useful for soil fertility and biodegradation of xenobiotics may severely be impacted. The present study was designed to assess the influence of two antimicrobial agents triclosan (TCS) and triclocarban (TCC), commonly used in consumer and health care products, on the microbial activity in the three agricultural soils from South Australia having different characteristics. The study was laid out following the two factors factorial design by applying 14C-glucose at 5 μg g-1 with either TCS at 0, 30, 90 and 270 μg g-1 or TCC at 0, 50, 150 and 450 μg g-1 in three agricultural soils, Freeling (Typic Rhodoxeralf–sodic), Booleroo (Typic Rhodoxeralf) and Avon (Calcixerralic Xerochrepts). The 14CO2, which was released as a result of microbial respiration, was trapped in 3 mL 1M NaOH and was quantified on Wallac WinSpectral α/β 1414 Liquid Scintillation Counter. The results revealed a significant difference in amounts of 14C-glucose mineralized in the three soils. A significant concentration dependant suppressive effect of TCS on the biomineralization of 14C-glucose appeared in all the tested soils as opposed to TCC where no such concentration dependent effect could be recorded. The reduction in 14C-glucose biomineralization in the Freeling, Booleroo and Avon soils was recorded up to 53.6, 38.5 and 37.4 % by TCS at 270 μg g-1 and 13.0, 5.8 and 1.6 % by TCC at 450 μg g-1 respectively. However, a significant negative correlation of CEC and pH was recorded with TCS and TCC effects. These results may imply that presence of such antimicrobial agents in the soil environment may also be considered while designing the bioremediation strategy for any xenobiotic pollutants.
Timothy Hay Business in Alberta: Business Models and Supply Chain Issues  [PDF]
Sajjad Zahir
American Journal of Industrial and Business Management (AJIBM) , 2013, DOI: 10.4236/ajibm.2013.32021

This paper presents the business model and supply chain issues of Timothy hay business in Southern Alberta. Production, processing, marketing and distribution aspects of the business are described. Research was conducted using case-based field studies involving Timothy farmers, hay plant operators and forage research scientists. It is recommended that further research in raising yield of hay production and a better management of freight and exchange rate fluctuations will be greatly beneficial to this sector of business.

Evaluation of Different Wheat Varieties by SDS-PAGE Electrophoresis
Mohd Shuaib,Ikhtiar Khan,Zahir Ali,Waqar Ali
Pakistan Journal of Biological Sciences , 2007,
Abstract: Wheat seed-storage proteins represent not only an important source of food and energy but it is also involved in the determination of bread-making quality. Wheat grains of thirteen wheat varieties were collected from different ecological regions of Pakistan. The variability of seed storage-proteins was analyzed by using SDS-PAGE electrophoresis. Electrophorogram for each variety was scored and presence or absence of each band noted and entered in a binary data matrix. Based on electrophoresis band spectra, Jaccard‘s Similarity Index (JSI) was calculated. Genetic diversity of wheat was evaluated by constructing the dendrogram for High Molecular Weight (HMW) and Low Molecular Weight (LMW) gluten subunit bands. It is concluded that seed storage protein profiles could be useful markers in the studies of genetic diversity and classification of adapted cultivars, thereby improving the efficiency of wheat breeding programs in cultivar development especially in developing countries like Pakistan.
Callus Induction and in vitro Complete Plant Regeneration of Different Cultivars of Tobacco (Nicotiana tabacum L.) on Media of Different Hormonal Concentrations
Gowher Ali,Fazal Hadi,Zahir Ali,Muhammad Tariq
Biotechnology , 2007,
Abstract: In the present study, regeneration conditions for two-cultivars-of-tobacco (Nicotiana tabacum L.) were optimized. At different concentrations the effects of 1-naphthalene acetic acid (auxin)-and-6-benzylaminopurine (cytokinin)-on-callus-induction-and-subsequent-plant regeneration in K-399 and SPTG-172 using Murashige and Skoog (MS) media were studied. The seeds were germinated on simple MS media, while MS media with auxine and cytokinin was used for callus induction and regeneration of shoots. In tobacco, callus was successfully induced from leaf explants using a high ratio of auxin: Cytokinin. The over all callus induction frequency in SPTG-172 was greater than K-399 indicating a difference in the genetic background of two cultivars. Both cultivars also showed best response to different hormonal concentrations. The resultant calli were stimulated to form shoots by increasing the cytokinin concentration and decreasing auxin content of culture media. There were clear differences between the two cultivars in their ability to produce regenerated plants. The maximum number of calli were regenerated in SPTG-172 whereas the mean number of shoots produced per callus at all concentrations was higher in K-399 indicating that’s shoot regeneration is markedly affected by the genotype. The roots developed well on hormones free MS media in both cultivars irrespectively of the varietal difference. The well-rooted plants were then transferred to green house for acclimatization-to-the in vitro environment.
Integrated Effects of Rhizobial Inoculum and Inorganic Fertilizers on Wheat Yield and Yield Components  [PDF]
Muhammad Adnan, Zahir Shah, Asif Khan, Muzamil shah, Gohar Ali Khan, Azaz Ali, Nisar Ali Khan, Nouman Saleem, Shah Nawaz, Saba Akbar, Sonia Samreen, Kanwal Zaib
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.513222

An experiment was conducted in pots under natural condition with two factor factorial completely randomized design (CRD) (CRD) to investigate the integrated effect of rhizobia inoculums and inorganic fertilizers on growth and yield of wheat crop at The University of Agriculture Peshawar, during 2012-2013. The experiment was comprised of four inoculums (no, lentil, peas and chickpeas) and two NPK levels (recommended 120:90:60 kg·ha-1 & 20% less of recommended). It was observed that inoculation of wheat by rhizobia significantly increased tillers per plant by a maximum of 42%, plant height by 13%, grain per spike by 16%, 100 grain weight by 10%, biological and grain yield by 10% over un-inoculated (control) treatment. Among inoculums, peas inoculum was found to be the most efficient for all traits except plant height where chickpea inoculum performed better. Similarly recommended NPK significantly increased tillers per plant by 33%, plant height by 19%, grain per spike by 9%, 100 grain weight by 10%, biological yield by 8% and grain yield by 10% compared with 20% less of recommended NPK. Interactive effect of inoculum x NPK was significant for tillers per plant, grain per spike, grain yield and non-significant for plant height, 100 grain weight and biological yield. However, it was evident from the results that inoculation improved all traits both under recommended and 20% less of recommended NPK. The persistent good performance of peas and lentil rhizobial inoculation in wheat growth exhibited that this could be used as a plant growth promoting rhizobacteria for wheat and other cereal crops in prevailing soil and climatic conditions.

Physicochemical Characteristics of Wheat Varieties Growing in the Same and Different Ecological Regions of Pakistan
Alam Zeb,Zahir Ali,Taufiq Ahmad,Abdulloev Abdumanon
Pakistan Journal of Biological Sciences , 2006,
Abstract: Wheat grains a source of our daily food were obtained from the different ecological regions of Pakistan. These fifteen varieties namely Fakhr-e-Sarhad, Bakhtawar-92, Chudry-97, Gandam-2002, Wafaq-01, Bhakkar-01, Inqilab-91, Tatara, Ghaznawy, Saleem-2000, Watan, Oqab, Tuf, Zakht and Gandam-711 were evaluated for their physicochemical characteristics and minerals contents. Six of these varieties, Fakhr-e-Sarhad, Oqab, Tuf, Zakht, Watan and Inqilab-91 growing in the same ecological conditions in district Chitral were selected in order to show the effect of same ecological conditions on the overall productivity of wheat varieties in term of physicochemical and minerals contents. Results reveal that same variety growing in district Chitral shows good productivity than the rest of varieties growing in different ecological conditions.
An Analysis of E-Insurance Practices in Pakistan: Current Status and Future Strategies: The Case of a State Owned Pakistani Company
Muhammad Shaukat Malik,Ali Malik,Muhammad Zahir Faridi
International Journal of Business and Management , 2011, DOI: 10.5539/ijbm.v6n2p125
Abstract: The use of Information Technology (IT) by business firms has increased tremendously, so is case with insurance industry. In an IT based economy the need for E-Insurance has become imperative to meet the current challenges of the 21st century. The Insurance companies in the world are using IT to increase their productivity/income and customer base by using latest IT systems. The Pakistan’s insurance companies are not lacking behind and using latest IT systems for performance improvements. E-Insurance in Pakistan is growing rapidly. There are changes taking place in the IT landscape of Pakistan’s insurance industry. The purpose of this paper is to know about the IT usage in the insurance industry and where Pakistan stands in terms of IT adoption at its major institutes like the State Life Insurance Corporation of Pakistan. The results of this study showed that IT is being utilized aggressively in insurance sector. The State Life Insurance Corporation of Pakistan is also increasingly utilizing Information Technology (IT) since long but its efforts are not properly aligned with its current need and at par with the world. The company is working with old/outdated IT systems products and needs to revolutionize its IT usage to have Web based internet integrated systems. There is a dire need that the company must implement an ERP system to become more competitive.

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