The objective of this study was to investigate the negative and positive effect of cable televisi... more The objective of this study was to investigate the negative and positive effect of cable television, importance of educated women, major purpose of viewing cable television and relationship between level of education of women and level of watching of cable television. Data was collected through a structured questioner from the educated women of district Swat. For presentation of data, frequency distribution was used and significance of the relationship was tested by Chai square test. The analysis showed that there is significant relationship between level of education of women and the level of watching cable television. Further major purpose of watching cable television was entertainment. The researcher suggested that, in making policy, PEMRA should keep in view the negative and positive impact of cable television, Also highly educated women were focus by PEMRA in their policies.
Journal of Mass Communication and Journalism, 2013
This study was conducted to assess the effects of watching cable television on some characteristi... more This study was conducted to assess the effects of watching cable television on some characteristics of women. Population of the study was the educated women between ages 18-30 of District Swat, Khyber Pathtunkhwa was selected. Purposive sampling method was used to select sample from the population. Total Eighty-nine respondents were selected from the population as a unit of analysis to investigate the effects. A structured questionnaire was used to collect the information from the respondents. Descriptive statistics was used to present the data through tables. The result was generalized to the population through chi-square test of association. The result analyzed, that the variables; domestic activities, culture and role of women were significantly associated to the exposure of cable television. Government and private companies have the responsibilities to promote the culture, domestic activities and role of women of Pashtun society by introducing special channel on cable television or frame programs on the existing channels.
1st Space Exploration Conference: Continuing the Voyage of Discovery, 2005
An Overview of Power Generation Technologies Suitable for Lunar Application. Zahid A Khan, Alex Z... more An Overview of Power Generation Technologies Suitable for Lunar Application. Zahid A Khan, Alex Zavoico, Justin Zachary, J Stephen Herring, Kevan Weaver, Bruce Kelly 1 st Space Exploration Conference: Continuing the Voyage of Discovery, 1-17, 2005. ...
20th International Conference on VLSI Design held jointly with 6th International Conference on Embedded Systems (VLSID'07), 2007
Multiple Input-Multiple Output (MIMO) wireless technology involves highly complex vectors and mat... more Multiple Input-Multiple Output (MIMO) wireless technology involves highly complex vectors and matrix computations which are directly related to increased power and area consumption. This paper proposes an area and power efficient VLSI architecture that can serve the dual purpose of minimum norm sorting of rows as well as upper/lower block tri-angularization of matrices. The resources inside the architecture are shared among both operations and only primitive computations are used. Results indicate saving in silicon real estate as well as power consumption compared to previous architecture without degrading performance.
This paper builds a real time Programmable LDPC Decoder for decoding codes specified in IEEE 802.... more This paper builds a real time Programmable LDPC Decoder for decoding codes specified in IEEE 802.16 standard and discusses their performance under various decoding algorithms. Out of the decoding algorithms, the modified Min-Sum SPA is selected for implementation and optimization on a reconfigurable instruction cell architecture. Different general and architecture specific optimization techniques are applied to enhance the throughput. With the architecture, a throughput of 20 Mbps has been achieved.
2007 Design, Automation & Test in Europe Conference & Exhibition, 2007
Multiple Input-Multiple Output (MIMO) wireless technology involves highly complex vectors and mat... more Multiple Input-Multiple Output (MIMO) wireless technology involves highly complex vectors and matrix computations which are directly related to increased power and area consumption. This paper proposes an area and power efficient VLSI architecture that can serve the dual purpose of minimum norm sorting of rows as well as upper/lower block tri-angularization of matrices. The resources inside the architecture are shared among both operations and only primitive computations are used. Results indicate saving in silicon real estate as well as power consumption compared to previous architecture without degrading performance.
Vibrio cholerae produces a zinc-containing and calcium-stabilized soluble hemagglutinin/protease,... more Vibrio cholerae produces a zinc-containing and calcium-stabilized soluble hemagglutinin/protease, which has been earlier shown to have the ability to cleave several physiologically important substrates including mucin, fibronectin and lactoferin. This study presents homology modeling of hemagglutinin/protease (vibriolysin) from Vibrio cholerae in the presence of inhibitor HPI [N-(1carboxy-3-phenylpropyl)-phenylalanyl-alpha-aspargine]. The 3D structure was predicted based on its sequence homology with Pseudomonas aeruginosa elastase (PAE). Comparison of the 3D structures of PAE and HA/P reveals a remarkable similarity having a conserved a + b domain. The inhibitor shows similar binding features as seen in other metalloproteases of M4 peptidase family. The study also highlights the key catalytic residues as well as the residues at the S 1 and S 0 1 binding sub-sites. The similarities between the two proteins provide support for the hypothesis that the two enzymes have similar three-dimensional structures and a common mechanism of action. The fact that both enzymes are secreted as zinc-containing proteases, led us to further hypothesize that they may play similar role in pathogenesis.
Aminopeptidase A (PepA) is a metalloexopeptidase found in Vibrio cholerae .It functions as a tran... more Aminopeptidase A (PepA) is a metalloexopeptidase found in Vibrio cholerae .It functions as a transcriptional repressor in regulatory cascade that controls virulence gene expression in V. cholerae. It is involved in protein degradation and in the metabolism of biologically active peptides. We proposed a 3D model of PepA based upon the crystal structure of PepA from Escherichia coli (E. coli) with an intention to evaluate the active site of the enzyme and to predict the properties of this enzyme, study of its 3D structure will help in understanding its role in DNA binding.
Journal of Engineering for Gas Turbines and Power, 2005
This paper is a guideline to selecting the most appropriate technology for the power plant heat s... more This paper is a guideline to selecting the most appropriate technology for the power plant heat sink based on water availability, site location, and wastewater disposal requirements. The paper discusses wet as well as dry cooling systems and evaluates the impact of the heat sink technology on the performance and cost of combined cycle power plants. Cogeneration applications and cycling plant operations are also considered. For each proposed option, the performance, relative costs, and noise issues will be presented.
IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 2006
This paper presents an analysis of the vertical Bell Laboratories layered space time (VBLAST) rec... more This paper presents an analysis of the vertical Bell Laboratories layered space time (VBLAST) receiver used in a multiple-input multiple-output (MIMO) wireless system from the hardware implementation perspective and identifies those processing elements that consume more area and power due to complex signal processing. This paper models a scalable VBLAST receiver based on minimum mean square error (MMSE) nulling criteria assuming a block flat fading channel. After identifying the major area and power consuming blocks, this paper proposes two area and power efficient VLSI architectures for the block that computes pseudoinverse of the channel matrix. This paper discusses different tradeoff issues in both architectures and compares them with the architectures in the literature.
A new encoding scheme is introduced for low-power and crosstalk immune communication of generic d... more A new encoding scheme is introduced for low-power and crosstalk immune communication of generic data on long parallel on-chip buses. The scheme uses a limited weight codebook with one-to-one data-to-code mapping. The new scheme and its implementation using a generic system-on-chip platform are described and results are provided that indicate a 30% saving in total switching activity with an 8-bit communication example.
The objective of this study was to investigate the negative and positive effect of cable televisi... more The objective of this study was to investigate the negative and positive effect of cable television, importance of educated women, major purpose of viewing cable television and relationship between level of education of women and level of watching of cable television. Data was collected through a structured questioner from the educated women of district Swat. For presentation of data, frequency distribution was used and significance of the relationship was tested by Chai square test. The analysis showed that there is significant relationship between level of education of women and the level of watching cable television. Further major purpose of watching cable television was entertainment. The researcher suggested that, in making policy, PEMRA should keep in view the negative and positive impact of cable television, Also highly educated women were focus by PEMRA in their policies.
Journal of Mass Communication and Journalism, 2013
This study was conducted to assess the effects of watching cable television on some characteristi... more This study was conducted to assess the effects of watching cable television on some characteristics of women. Population of the study was the educated women between ages 18-30 of District Swat, Khyber Pathtunkhwa was selected. Purposive sampling method was used to select sample from the population. Total Eighty-nine respondents were selected from the population as a unit of analysis to investigate the effects. A structured questionnaire was used to collect the information from the respondents. Descriptive statistics was used to present the data through tables. The result was generalized to the population through chi-square test of association. The result analyzed, that the variables; domestic activities, culture and role of women were significantly associated to the exposure of cable television. Government and private companies have the responsibilities to promote the culture, domestic activities and role of women of Pashtun society by introducing special channel on cable television or frame programs on the existing channels.
1st Space Exploration Conference: Continuing the Voyage of Discovery, 2005
An Overview of Power Generation Technologies Suitable for Lunar Application. Zahid A Khan, Alex Z... more An Overview of Power Generation Technologies Suitable for Lunar Application. Zahid A Khan, Alex Zavoico, Justin Zachary, J Stephen Herring, Kevan Weaver, Bruce Kelly 1 st Space Exploration Conference: Continuing the Voyage of Discovery, 1-17, 2005. ...
20th International Conference on VLSI Design held jointly with 6th International Conference on Embedded Systems (VLSID'07), 2007
Multiple Input-Multiple Output (MIMO) wireless technology involves highly complex vectors and mat... more Multiple Input-Multiple Output (MIMO) wireless technology involves highly complex vectors and matrix computations which are directly related to increased power and area consumption. This paper proposes an area and power efficient VLSI architecture that can serve the dual purpose of minimum norm sorting of rows as well as upper/lower block tri-angularization of matrices. The resources inside the architecture are shared among both operations and only primitive computations are used. Results indicate saving in silicon real estate as well as power consumption compared to previous architecture without degrading performance.
This paper builds a real time Programmable LDPC Decoder for decoding codes specified in IEEE 802.... more This paper builds a real time Programmable LDPC Decoder for decoding codes specified in IEEE 802.16 standard and discusses their performance under various decoding algorithms. Out of the decoding algorithms, the modified Min-Sum SPA is selected for implementation and optimization on a reconfigurable instruction cell architecture. Different general and architecture specific optimization techniques are applied to enhance the throughput. With the architecture, a throughput of 20 Mbps has been achieved.
2007 Design, Automation & Test in Europe Conference & Exhibition, 2007
Multiple Input-Multiple Output (MIMO) wireless technology involves highly complex vectors and mat... more Multiple Input-Multiple Output (MIMO) wireless technology involves highly complex vectors and matrix computations which are directly related to increased power and area consumption. This paper proposes an area and power efficient VLSI architecture that can serve the dual purpose of minimum norm sorting of rows as well as upper/lower block tri-angularization of matrices. The resources inside the architecture are shared among both operations and only primitive computations are used. Results indicate saving in silicon real estate as well as power consumption compared to previous architecture without degrading performance.
Vibrio cholerae produces a zinc-containing and calcium-stabilized soluble hemagglutinin/protease,... more Vibrio cholerae produces a zinc-containing and calcium-stabilized soluble hemagglutinin/protease, which has been earlier shown to have the ability to cleave several physiologically important substrates including mucin, fibronectin and lactoferin. This study presents homology modeling of hemagglutinin/protease (vibriolysin) from Vibrio cholerae in the presence of inhibitor HPI [N-(1carboxy-3-phenylpropyl)-phenylalanyl-alpha-aspargine]. The 3D structure was predicted based on its sequence homology with Pseudomonas aeruginosa elastase (PAE). Comparison of the 3D structures of PAE and HA/P reveals a remarkable similarity having a conserved a + b domain. The inhibitor shows similar binding features as seen in other metalloproteases of M4 peptidase family. The study also highlights the key catalytic residues as well as the residues at the S 1 and S 0 1 binding sub-sites. The similarities between the two proteins provide support for the hypothesis that the two enzymes have similar three-dimensional structures and a common mechanism of action. The fact that both enzymes are secreted as zinc-containing proteases, led us to further hypothesize that they may play similar role in pathogenesis.
Aminopeptidase A (PepA) is a metalloexopeptidase found in Vibrio cholerae .It functions as a tran... more Aminopeptidase A (PepA) is a metalloexopeptidase found in Vibrio cholerae .It functions as a transcriptional repressor in regulatory cascade that controls virulence gene expression in V. cholerae. It is involved in protein degradation and in the metabolism of biologically active peptides. We proposed a 3D model of PepA based upon the crystal structure of PepA from Escherichia coli (E. coli) with an intention to evaluate the active site of the enzyme and to predict the properties of this enzyme, study of its 3D structure will help in understanding its role in DNA binding.
Journal of Engineering for Gas Turbines and Power, 2005
This paper is a guideline to selecting the most appropriate technology for the power plant heat s... more This paper is a guideline to selecting the most appropriate technology for the power plant heat sink based on water availability, site location, and wastewater disposal requirements. The paper discusses wet as well as dry cooling systems and evaluates the impact of the heat sink technology on the performance and cost of combined cycle power plants. Cogeneration applications and cycling plant operations are also considered. For each proposed option, the performance, relative costs, and noise issues will be presented.
IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 2006
This paper presents an analysis of the vertical Bell Laboratories layered space time (VBLAST) rec... more This paper presents an analysis of the vertical Bell Laboratories layered space time (VBLAST) receiver used in a multiple-input multiple-output (MIMO) wireless system from the hardware implementation perspective and identifies those processing elements that consume more area and power due to complex signal processing. This paper models a scalable VBLAST receiver based on minimum mean square error (MMSE) nulling criteria assuming a block flat fading channel. After identifying the major area and power consuming blocks, this paper proposes two area and power efficient VLSI architectures for the block that computes pseudoinverse of the channel matrix. This paper discusses different tradeoff issues in both architectures and compares them with the architectures in the literature.
A new encoding scheme is introduced for low-power and crosstalk immune communication of generic d... more A new encoding scheme is introduced for low-power and crosstalk immune communication of generic data on long parallel on-chip buses. The scheme uses a limited weight codebook with one-to-one data-to-code mapping. The new scheme and its implementation using a generic system-on-chip platform are described and results are provided that indicate a 30% saving in total switching activity with an 8-bit communication example.
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Papers by Zahid Khan