A new paradigm is rapidly developing, with the increasing electronic sophistication of teaching m... more A new paradigm is rapidly developing, with the increasing electronic sophistication of teaching methods and classrooms, for problem-based learning (PBL). This paper describes the study being performed in the Chemical Engineering Department at Lamar University to integrate best practice pedagogy with computer-aided modeling and simulation into a PBL educational program. The program requires a multi-electronic media classroom for computer-aided problem-based learning. A prototype modern classroom will be discussed in terms of the pedagogical objectives of PBL. From experience with the prototype classroom, a new classroom has been designed to optimize the PBL learning process.
Problem-Based Learning (PBL) is a new modern pedagogical teaching method that challenges students... more Problem-Based Learning (PBL) is a new modern pedagogical teaching method that challenges students to learn creative thinking, shared responsibility, individual responsibility for learning, problem development, analysis of problems based on the curriculum dimension and real world issues. Availability of the multimedia in the classroom enables students and instructors the instant gratification of the content via the Internet and e-mails. PBL has been used to teach a graduate "Air Chemistry and Engineering" course at Lamar University. In this paper, we discuss a new innovative teaching strategy of Air Chemistry in Engineering. Students are encouraged to formulate and solve problems that provide exposure to the content that fits a unifying model of the subject materials as illustrated by the student developed relationship chart. The presentation will detail how this approach develops creative thinking based on encompassed concepts and detailed models.
This paper discusses an adaptation and implementation project that involves an innovative use and... more This paper discusses an adaptation and implementation project that involves an innovative use and extension of problem-based learning (PBL) in Chemical Engineering education at Lamar University that links industry, faculty and students. Lamar University is located within one-half mile of the ExxonMobil refinery (225,000 barrels/day) and at the center of Spindletop where the petrochemical industry began. The project focuses on the integration CAMS into the undergraduate chemical engineering courses and curriculum. PBL, student centered learning, is undergoing a renaissance in engineering education 1 and precedents for incorporation of computer-aided learning have been established 2. This is clearly illustrated by the problem-based freshmen course incorporating computer based modeling technology at the University of Minnesota 3. The strategy at Lamar University is to adapt the extensive PBL program developed at McMaster University and implement it into the ChE Department at Lamar University where we have a unique position with industry and strong industrial interest in participating in the program. McMaster University, under the leadership of Donald Woods, has been developing and implementing PBL for 25 years with well-documented success 4-7. In addition, we are incorporating the work of Scott Fogler at the University of Michigan in selecting computer-aided software and interactive teaching methods using virtual reality 8. The authors are fully aware of the difficulties involved in PBL implementation 9,10 but have the complete support of the chemical engineering faculty and associated curriculum faculty from chemistry and other engineering departments. The final product will be a chemical engineering university training program that graduates students with enhanced problem-solving skills, particularly with computer-aided modeling and simulation, and a better conceptual understanding of real-world problems based on enhanced understanding of fundamentals. This report outlines our progress to date.
The use of plasma-assisted oxidation of aluminum for preparation of planar alumina is explored as... more The use of plasma-assisted oxidation of aluminum for preparation of planar alumina is explored as a method of preparing pure alumina for applications in modeling of bulk alumina catalysts. Preparation of alumina films by this method has been found to avoid many of the problems associated with other methods of alumina film preparation, such as inclusion of electrolyte counter-ions and contaminants from solution as encountered in the anodic or sol-gel methods or limitations on thickness of the film found in thermal oxidation studies. In this study, optimization of the plasma parameters for growth of the desired product is carried out through analysis of the product by X-ray photoelectron spectroscopy (XPS). The investigation of plasma-grown alumina films using XPS has shown that the crystalline transition temperature is significantly reduced for these films. Its suitability for use as a model in investigating alumina catalysts is confirmed.
The dissociation energies of the molecules TiRh and Rh, have been determined as 88.9 & 5 kcal mol... more The dissociation energies of the molecules TiRh and Rh, have been determined as 88.9 & 5 kcal mol-l and 65.5 f 6 kcal mol-l, respectively, and the former value is interpreted in terms of the Brewer-Engel metallic theory.
Journal of Environmental Science and Health . Part A: Environmental Science and Engineering and Toxicology, 1990
The chemical environment of barium in Portland cement which is doped with barium nitrate was inve... more The chemical environment of barium in Portland cement which is doped with barium nitrate was investigated using x‐ray photoelectron spectroscopy (XPS) and Fourier Transform Infrared spectroscopy (FTIR). The barium doped cement showed tremendous increases in carbonate content over the undoped cement. An XPS sulfate signal was observed in the cement doped with 20% w/w Ba(NO3)2 but not in the 0
Etude comparative de diverses techniques (spectrometrie SIMS, spectrometrie de masse a bombardeme... more Etude comparative de diverses techniques (spectrometrie SIMS, spectrometrie de masse a bombardement d'atome rapide, spectrometrie de masse a desorption de champ pulse, spectrometrie de masse a desorption de champ laser pulse) avec les systemes tungstene-oxygene, rhuthenium-oxygene et autres systemes
A new paradigm is rapidly developing, with the increasing electronic sophistication of teaching m... more A new paradigm is rapidly developing, with the increasing electronic sophistication of teaching methods and classrooms, for problem-based learning (PBL). This paper describes the study being performed in the Chemical Engineering Department at Lamar University to integrate best practice pedagogy with computer-aided modeling and simulation into a PBL educational program. The program requires a multi-electronic media classroom for computer-aided problem-based learning. A prototype modern classroom will be discussed in terms of the pedagogical objectives of PBL. From experience with the prototype classroom, a new classroom has been designed to optimize the PBL learning process.
Problem-Based Learning (PBL) is a new modern pedagogical teaching method that challenges students... more Problem-Based Learning (PBL) is a new modern pedagogical teaching method that challenges students to learn creative thinking, shared responsibility, individual responsibility for learning, problem development, analysis of problems based on the curriculum dimension and real world issues. Availability of the multimedia in the classroom enables students and instructors the instant gratification of the content via the Internet and e-mails. PBL has been used to teach a graduate "Air Chemistry and Engineering" course at Lamar University. In this paper, we discuss a new innovative teaching strategy of Air Chemistry in Engineering. Students are encouraged to formulate and solve problems that provide exposure to the content that fits a unifying model of the subject materials as illustrated by the student developed relationship chart. The presentation will detail how this approach develops creative thinking based on encompassed concepts and detailed models.
This paper discusses an adaptation and implementation project that involves an innovative use and... more This paper discusses an adaptation and implementation project that involves an innovative use and extension of problem-based learning (PBL) in Chemical Engineering education at Lamar University that links industry, faculty and students. Lamar University is located within one-half mile of the ExxonMobil refinery (225,000 barrels/day) and at the center of Spindletop where the petrochemical industry began. The project focuses on the integration CAMS into the undergraduate chemical engineering courses and curriculum. PBL, student centered learning, is undergoing a renaissance in engineering education 1 and precedents for incorporation of computer-aided learning have been established 2. This is clearly illustrated by the problem-based freshmen course incorporating computer based modeling technology at the University of Minnesota 3. The strategy at Lamar University is to adapt the extensive PBL program developed at McMaster University and implement it into the ChE Department at Lamar University where we have a unique position with industry and strong industrial interest in participating in the program. McMaster University, under the leadership of Donald Woods, has been developing and implementing PBL for 25 years with well-documented success 4-7. In addition, we are incorporating the work of Scott Fogler at the University of Michigan in selecting computer-aided software and interactive teaching methods using virtual reality 8. The authors are fully aware of the difficulties involved in PBL implementation 9,10 but have the complete support of the chemical engineering faculty and associated curriculum faculty from chemistry and other engineering departments. The final product will be a chemical engineering university training program that graduates students with enhanced problem-solving skills, particularly with computer-aided modeling and simulation, and a better conceptual understanding of real-world problems based on enhanced understanding of fundamentals. This report outlines our progress to date.
The use of plasma-assisted oxidation of aluminum for preparation of planar alumina is explored as... more The use of plasma-assisted oxidation of aluminum for preparation of planar alumina is explored as a method of preparing pure alumina for applications in modeling of bulk alumina catalysts. Preparation of alumina films by this method has been found to avoid many of the problems associated with other methods of alumina film preparation, such as inclusion of electrolyte counter-ions and contaminants from solution as encountered in the anodic or sol-gel methods or limitations on thickness of the film found in thermal oxidation studies. In this study, optimization of the plasma parameters for growth of the desired product is carried out through analysis of the product by X-ray photoelectron spectroscopy (XPS). The investigation of plasma-grown alumina films using XPS has shown that the crystalline transition temperature is significantly reduced for these films. Its suitability for use as a model in investigating alumina catalysts is confirmed.
The dissociation energies of the molecules TiRh and Rh, have been determined as 88.9 & 5 kcal mol... more The dissociation energies of the molecules TiRh and Rh, have been determined as 88.9 & 5 kcal mol-l and 65.5 f 6 kcal mol-l, respectively, and the former value is interpreted in terms of the Brewer-Engel metallic theory.
Journal of Environmental Science and Health . Part A: Environmental Science and Engineering and Toxicology, 1990
The chemical environment of barium in Portland cement which is doped with barium nitrate was inve... more The chemical environment of barium in Portland cement which is doped with barium nitrate was investigated using x‐ray photoelectron spectroscopy (XPS) and Fourier Transform Infrared spectroscopy (FTIR). The barium doped cement showed tremendous increases in carbonate content over the undoped cement. An XPS sulfate signal was observed in the cement doped with 20% w/w Ba(NO3)2 but not in the 0
Etude comparative de diverses techniques (spectrometrie SIMS, spectrometrie de masse a bombardeme... more Etude comparative de diverses techniques (spectrometrie SIMS, spectrometrie de masse a bombardement d'atome rapide, spectrometrie de masse a desorption de champ pulse, spectrometrie de masse a desorption de champ laser pulse) avec les systemes tungstene-oxygene, rhuthenium-oxygene et autres systemes
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Papers by David Cocke