188,201 research outputs found
The Folio: The Magazine of Forman Christian College
No full textEditorial. pp. 3-4; Velte, Mowbray-Dr Bashir Ahmad. pp. 5; Saeed Karim Fazli-Mr Boyce: an Appreciation. pp. 6-8; Siraj-ud-Din-Speech-Valedictory Address: Delivered at the College Assembly Hall on 28th March. pp. 9-13; Basil P. Das-Article-Muslim Architecture. pp. 14-16; Riaz Hussain-Article-The Contribution of European Writers. pp. 17-21; Robbins, S. W.-Article-A Modern Approach to English Poetry. pp. 22-33; Mackenize, Donald G.-Poetry-I am a Nation. pp. 33; Saeed Ahmad-Article-Lyric Poetry. pp. 34-37; Aijaz ul Haque-Article-The Novels of Thomas Hardy. pp. 38-40; Eshtiaq A. Siddiqui-Poetry-God or Gods?. pp. 40; Najm Hussain Syed-Article-Humanity in the Plays of Galsworthy. pp. 41-42; Wisal Khan-Article-Sir Winston Churchill. pp. 43-45; Zia ur Rahman-On Going Hunting. pp. 46-48; Saeed Karin Fazli-The Leisure Way. pp. 49; Aiyaz ul Haq-Story-The Skirt Girl. pp. 51-54; Aftab A. Jan-Story-Men from Venus. pp. 55-57; Mohd Zafar Khattak-Story-Shahnaz. pp. 58-60; Malik, M. Naseem A.-Story-The Coat. pp. 61-63; Saeed Akhtar-Story-Love is a Many Splendoured Thing. pp. 64-66; The Societies Report. pp. 67-70; Saeed Ahmad-Poetry-The Blue-Bells Toll for Thee. pp. 72; Velte, F. M.-F. C. College Sports, 1956-57. pp. 73-76; Folio [Urdu]. 58 p.Editorial Board 1957. before Editorial page; Dr F. Mowbray Velte. after page 18; Mr Stanley E. Brush, Izharuddin Ahmed (President, College Union), Iftikhar Gilani (President, Secondary Union). after page 34; Arthur Mervyn (Valedictory Address, delivered at the F.C. College Hall on 28th March), Hamayun Khan Afredi (Captain of College Football Team), Ijaz Akhar (Captain of Degree Basket Ball Team). after page 50; The F.c.c. Secondary Board Basketball Team. after page 6
Simulation of thermal plant optimization and hydraulic aspects of thermal distribution loops for large campuses
No full textFollowing an introduction, the author describes Texas A&M University and its utilities system. After that, the author presents how to construct simulation models for chilled water and heating hot water distribution systems. The simulation model was used in a $2.3 million Ross Street chilled water pipe replacement project at Texas A&M University. A second project conducted at the University of Texas at San Antonio was used as an example to demonstrate how to identify and design an optimal distribution system by using a simulation model. The author found that the minor losses of these closed loop thermal distribution systems are significantly higher than potable water distribution systems. In the second part of the report, the author presents the latest development of software called the Plant Optimization Program, which can simulate cogeneration plant operation, estimate its operation cost and provide optimized operation suggestions. The author also developed detailed simulation models for a gas turbine and heat recovery steam generator and identified significant potential savings. Finally, the author also used a steam turbine as an example to present a multi-regression method on constructing simulation models by using basic statistics and optimization algorithms. This report presents a survey of the author??s working experience at the Energy Systems Laboratory (ESL) at Texas A&M University during the period of January 2002 through March 2004. The purpose of the above work was to allow the author to become familiar with the practice of engineering. The result is that the author knows how to complete a project from start to finish and understands how both technical and nontechnical aspects of a project need to be considered in order to ensure a quality deliverable and bring a project to successful completion. This report concludes that the objectives of the internship were successfully accomplished and that the requirements for the degree of Degree of Engineering have been satisfied
4-Chloro-N-m-tolylbenzamide
No full textIn the title compound, C14H12ClNO, the dihedral angle between the two aromatic rings is 11.29 (15)°. The crystal packing is stabilized by N-H...O hydrogen bonds linking the molecules into chains running along the c axis. Key indicators: single-crystal X-ray study; T = 173 K; mean σ(C–C) = 0.004 Å; R factor = 0.066; wR factor = 0.178; data-to-parameter ratio = 13.7
Conversion of methanol to light olefins on SAPO-34: kinetic modeling and reactor design
No full textIn this work, the reaction scheme of the MTO process was written in terms of elementary steps and generated by means of a computer algorithm characterizing the various species by vectors and Boolean relation matrices. The number of rate parameters is very large. To reduce this number the rate parameters related to the steps on the acid sites of the catalyst were modeled in terms of transition state theory and statistical thermodynamics. Use was made of the single event concept to account for the effect of structure of reactant and activated complex on the frequency factor of the rate coefficient of an elementary step. The Evans-Polanyi relation was also utilized to account for the effect of the structure on the change in enthalpy. The structure was determined by means of quantum chemical software.
The number of rate parameters of the complete reaction scheme to be determined from experimental data is thus reduced from 726 to 30. Their values were obtained from the experimental data of Abraha by means of a genetic algorithm involving the Levenberg-Marquardt algorithm and combined with sequential quadratic programming.
The retained model yields an excellent fit of the experimental data. All the parameters satisfy the statistical tests as well as the rules of carbenium ion chemistry. The kinetic model also reproduces the experimental data of Marchi and Froment, also obtained on SAPO-34. Another set of their data was used to introduce the deactivation of the catalyst into the kinetic equations.
This detailed kinetic model was used to investigate the influence of the operating conditions on the product distribution in a multi-bed adiabatic reactor with plug flow. It was further inserted into riser and fluidized bed reactor models to study the conceptual design of an MTO reactor, accounting for the strong exothermicity of the process. Multi-bed adiabatic and fluidized bed technologies show good potential for the industrial process for the conversion of methanol into olefins
Impes modeling of volumetric dry gas reservoirs with mobile water
No full textAs the importance of natural gas as a resource increases, the importance of volumetric dry gas reservoirs with mobile water as the dominant gas reservoir types will also increase.
This research developed an efficient, user-friendly simulation program specifically designed to model two-phase flow of gas and water in these reservoirs. Since fluid compression and viscous forces are the dominant parameters that control fluid movement in a dry gas reservoir, we used the Implicit Pressure and Explicit Saturation (IMPES) formulation of flow equations in which neither gravity nor capillary pressure terms are pertinent. Therefore, the IMPES approach showed greater stability for all cases considered in this work. The developed simulator is a Visual Basic Application (VBA) code for which the users can obsereve the results in a pertinent Microsoft Excel file.
This program allows users to study the depletion behavior of volumetric dry gas reservoirs with mobile water as efficiently and accurately as is now possible in more expensive commercially available reservoir simulators. The program was validated by comparing the results with a well-recognized commercial reservoir simulator (CMG). The results of a battery of tests of this simulator matched very well with results of the commercial reservoir simulator for all tested schemes including different simulation plans; reservoir, grid and fluid data; and well configurations.
The observed applicability of the program suggests when dealing with volumetric dry gas reservoirs with mobile water there is no need to employ more expensive commercial reservoir simulators, as the program can reliably be used for any simulation scheme of this case. Furthermore, the program can later be applied in a more robust reservoir simulator as the part that handles dry gas cases
Intern experience at CH���M Hill, Inc.: an internship report
No full textIncludes author's vita"Submitted to the College of Engineering of Texas A&M University in partial
fulfillment of the requirement for the degree of Doctor of Engineering."Includes bibliographical referencesA review of the author's internship experience with CH���M HILL, Inc.
during the period September 1975 through May 1976 is presented. During this nine month
internship the author worked as an Engineer II in the Industrial Processes discipline of this
large consulting engineering firm... The author's prime responsibility was as one of three
lead design engineers on the design of a large wastewater treatment facility for a pulp mill
in Hoquiam, Washington owned by ITT Rayonier Inc. The work generally consisted of the design
of individual treatment units and associated piping and pumping. The purpose of the project
was to provide wastewater treatment capabilities that would satisfy the effluent limitations
(standards) imposed upon the mill by the State of Washington Department of Ecology and the
U.S. Environmental Protection Agency. The author's assignment also entailed necessary
interaction with the project manager and other CH���M HILL design engineers and support staff
members, the client's representatives, and representatives of two other consulting engineering
firms working on the project. Thus, the internship position at CH���M HILL provided considerable
experience coordinating the author's work with the work of other engineers, guiding the design
and administrative efforts of a support staff, and interacting regularly with the client and
other consulting firms. This broad exposure to a variety of engineering and organizational
problems provided a valuable educational experience
Impact of Web technologies on student-lecturer expert power relationship
No full textExpert power is “the power that comes from having knowledge and expertise in a particular area” (Nazarko, 2004). In the history of the development of higher education, the relationship between the lecturer and the students has changed because of many different factors. Before the internet and web revolution, the lecturer used to be the main information source for his/her students. The web as a modern source of knowledge is now used universally and this spreading trend might affect the relationship between the lecturer and his students. Understanding the impact of this change appears to be important as it would be employed in improving teaching techniques. In this area, many studies have focused on the impact of using the internet and web applications on students and lecturers. These studies have widely investigated this impact on student’s achievements, attitude and also have shown how the role and performance of the faculty have changed. This paper aims to investigate the impact of using web resources as a source of knowledge on the student-lecturer relationship from students’ perspectives. The investigation focuses on how students’ knowledge gained from using websites has impacted on the relationship with their lecturer as a knowledgeable person which theoretically means Expert power. 1661 students from 30 universities/ educational institutions participated in this research
Combined source-channel coding for a power and bandwidth constrained noisy channel
No full textThis thesis proposes a framework for combined source-channel coding under power and bandwidth constrained noisy channel. The framework is then applied to progressive image coding transmission using constant envelope M-ary Phase Shift Key (MPSK) signaling over an Additive White Gaussian Channel (AWGN) channel. First the framework for uncoded MPSK signaling is developed. Then, its extended to include coded modulation using Trellis Coded Modulation (TCM) for MPSK signaling. Simulation results show that coded MPSK signaling performs 3.1 to 5.2 dB better than uncoded MPSK signaling depending on the constellation size. Finally, an adaptive TCM system is presented for practical implementation of the proposed scheme, which outperforms uncoded MPSK system over all signal to noise ratio (Es/No) ranges for various MPSK modulation formats.
In the second part of this thesis, the performance of the scheme is investigated from the channel capacity point of view. Using powerful channel codes like Turbo and Low Density Parity Check (LDPC) codes, the combined source-channel coding scheme is shown to be within 1 dB of the performance limit with MPSK channel signaling
Intern experience at the Texas Transportation Institute: an internship report
No full text"Submitted to the College of Engineering of Texas A&M University in partial
fulfillment of the requirements for the degree of Doctor of Engineering."Includes vita (leaf 91)Includes bibliographical references (leaf 57)This report discusses the author's engineering experience at the Texas
Transportation Institute (TTI), Texas A&M University from March 1974 through July 1977. A
report of this experience plus twelve additional hours of academic course work were
substituted for an internship according to requirements established by the College of
Engineering. Although the author could not retroactively establish objectives of the type
associated with a typical internship, the work experience gained could be related to the two
general objectives of an intership: 1. To demonstrate an identifiable contribution to the
organization in which the intern served, and 2. To enable the intern to become aware of the
non-technical aspects of working as an engineer in a non-academic environment. While a member
of the Texas Transportation Institute staff, the author worked on a number of projects in the
areas of highway traffic engineering research and the preparation of continuing education
courses for transportation engineering officials. These assignments were contained within the
Urban Transportation Systems Division of TTI. This report delineates the author's contribution
to four particular projects and discusses the technical as well as non-technical experience
gained from each. Having been exposed to more engineering situations than many of the other
Doctor of Engineering students, the author has already formulated some rather specific
milestones for the future. The Doctor of Engineering program is discussed in conjunction with
its potential for helping the author attain these career goals and objectives. Also, some
thoughts are presented regarding the Doctor of Engineering as a viable alternative to the
Ph.D. in preparing for a career in engineering higher education
Democracy in Pakistan: Value Change and Challenges of Institution Building
No full textDemocracy as a system of governance and interest representation demands respect for dissent and opposition. It recognises the principle of majority rule and guarantees protection of minorities. Democracy also builds faith in electoral contestation to gain public office and gives legitimacy to political parties as primary instruments for acquisition and transfer of power from one set of individuals to another. Unfortunately, despite the significance of the above elements, no serious studies have been undertaken on Pakistan’s experimentation with democracy. Given a history of weak party system and prolonged military rule, most of the studies focus on the military, political parties, constitutional history, or in a descriptive way, attribute the failure of democracy to the inadequacies of the politicians [Ahmed (1987); Rizvi (1987); Callard (1957) and Afzal (1976)]. It is only recently that some theoretically meaningful and rigorous empirical writings have appeared on elections, procedures and practices of electoral contestation and on problems of transition from authoritarian regimes towards democracy [Waseem (1989); Wilder (1995); Talyor (1992); Rais (1997) and Shafqat (1997)]. It merits attention and recognition that among the Muslim states and developing world, Pakistan is one of those few states, where people have shown vigour and some vitality to adopt a democratic parliamentary system and through popular mass movements demonstrated disapproval of military dictatorships. An enduring feature of Pakistani culture, history and politics has been an aspiration for democracy [Hugh and Rose (1997)]. The passion for democracy continues to resurge, despite ethnic, social class, religious cleavages, strong authoritarian tendencies and prolonged military rule.
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