Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Louisiana State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 10441 - 10470 of 11944

Full-Text Articles in Entire DC Network

The Effects Of Shear Stress On The Crystallization Kinetics Of Syndiotactic Polystyrene., Douglas Henry Krzystowczyk Jan 1995

The Effects Of Shear Stress On The Crystallization Kinetics Of Syndiotactic Polystyrene., Douglas Henry Krzystowczyk

LSU Historical Dissertations and Theses

Industrial polymer processes involve the application of heat and stress, often resulting in deformations at high shear rates and molecular orientation. This affects both the crystallization rates and the melting temperature of semi-crystalline polymers. Knowledge of the variance of these properties are vital commercially due to their effect on processing techniques, production rates and mechanical properties. An experimental apparatus was designed and constructed that allowed the study of the effects of shear on syndiotactic polystyrene melt samples. This apparatus consisted of a parallel plate rheometer that used changes in shear stress, as well as infrared detection equipment that utilized changes …

Go to article

Parallelization Of Reconstructability Analysis Algorithms., Patti E. Iles Jan 1995

Parallelization Of Reconstructability Analysis Algorithms., Patti E. Iles

LSU Historical Dissertations and Theses

Bush Jones published a series of papers providing sequential algorithms that are key to reconstructability analysis. These algorithms include the determination of unbiased reconstructions and a greedy algorithm for a generalization of the reconstruction problem. The implementation of these sequential algorithms provide scientists and mathematicians with the means of utilizing reconstructability analysis in systems modeling. The algorithms, however, are so computationally intensive that the system is limited to a very small set of variables. Many papers have been written applying reconstructability analysis and maximum entropy methods to various disciplines. Reconstructability analysis has the potential of dramatically impacting the scientific community, …

Go to article

Simultaneous Water-Gas Shift Reaction And Carbon Dioxide Separation For Direct Hydrogen Production From Synthesis Gas., Chun Han Jan 1995

Simultaneous Water-Gas Shift Reaction And Carbon Dioxide Separation For Direct Hydrogen Production From Synthesis Gas., Chun Han

LSU Historical Dissertations and Theses

The simultaneous water-gas shift and CaO-carbonation reactions for the direct hydrogen production from synthesis gas have been studied at high temperature and high pressure using a laboratory-scale fixed-bed reactor. Experiments were conducted to evaluate the effect of process parameters--temperature, pressure, gas composition, and space velocity--on system performance during both calcination and shift/carbonation reaction stages. Commercial dolomite was chosen as the primary sorbent while two limestones were tested for comparison. Multicycle tests were conducted to evaluate sorbent durability. Sorbent structure and structural changes associated with reaction were measured using mercury porosimeter. The experiments proved the technical feasibility of combining the shift …

Go to article

The Effects Of Metacognitive Advice And Control Of Sequence On Student Achievement And Attitude Toward Computer-Assisted Instruction And Content., Andrew Mark Holden Jan 1995

The Effects Of Metacognitive Advice And Control Of Sequence On Student Achievement And Attitude Toward Computer-Assisted Instruction And Content., Andrew Mark Holden

LSU Historical Dissertations and Theses

The purpose of the study was to investigate the effects of the CAI design features--metacognitive advice and control of instructional sequence upon student achievement and attitude toward the instructional program and content. The topic of the CAI was designing comparative research to control threats to internal validity. Four versions of the CAI were created based upon the combinations of the bi-level independent variables--metacognitive advice and control of instructional sequence. The participants of the study were graduate students from four departments at Louisiana State University. The independent variables were metacognitive advice, control of instructional sequence, and the participant's self-directed learning readiness …

Go to article

Abstract Volterra Equations., Mihi Kim Jan 1995

Abstract Volterra Equations., Mihi Kim

LSU Historical Dissertations and Theses

This dissertation is devoted to the study of the abstract Volterra equation $$v(t) = A\int\sbsp{0}{t}\ v(t - s)d\mu(s) + f(t)\qquad{\rm for}\ t\ge0,\eqno&(\rm VE)$$. where A is a closed linear operator in a complex Banach space $X,\ \mu$ is a complex valued function of local bounded variation, and $f:\lbrack0,\infty)\to X$ is continuous and Laplace transformable. Laplace transform methods are used to characterize the existence and uniqueness of exponentially bounded solutions v for a given forcing term f, an operator A, and a given kernel $\mu$. We extend the methods of a solution family (or a resolvent) for (VE) by studying integrated …

Go to article

Factors Influencing The Intention To Choose A Physical Or An Applied Science Track In College: A Ghanaian District-Level Study., James Adu Opare Jan 1995

Factors Influencing The Intention To Choose A Physical Or An Applied Science Track In College: A Ghanaian District-Level Study., James Adu Opare

LSU Historical Dissertations and Theses

The purpose of the study was to identify the determinants of Ghanaian senior secondary school students' intentions to choose their college majors from the physical and applied sciences. The specific objectives were, first, to find out if males and females are equally likely to major in the physical and applied sciences, and second, to find out if the sex composition of the school a student attends can have an influence on his or her inclination toward the subjects in question. Through paper-and-pencil questionnaires, data for the study were collected in summer 1994, from a sample of 624 12th graders drawn …

Go to article

A Formal Methodology For Deriving Purely Functional Programs From Z Specifications Via The Intermediate Specification Language Funz., Linda Bostwick Sherrell Jan 1995

A Formal Methodology For Deriving Purely Functional Programs From Z Specifications Via The Intermediate Specification Language Funz., Linda Bostwick Sherrell

LSU Historical Dissertations and Theses

In recent years, both formal methods and software reuse have been increasingly advocated as a means of alleviating the ills of the software crisis. During this same time period, purely functional programming languages, which have a long history in the realm of rapid prototyping, have emerged as a viable medium for real-world applications. Since these trends are likely to continue, this work describes a methodology that facilitates the derivation of purely functional programs from existing Z specifications. A unique aspect of the methodology is its incorporation of an intermediate specification language (FunZ) during the design phase of software development. Most …

Go to article

Factors Influencing The Selection Of Business Majors As Perceived By Transfer And Non-Transfer Business Students., Norma Jeanne Jenkins Soileau Jan 1995

Factors Influencing The Selection Of Business Majors As Perceived By Transfer And Non-Transfer Business Students., Norma Jeanne Jenkins Soileau

LSU Historical Dissertations and Theses

The objectives of this study were to: (1) describe the students enrolled in the two-year business programs offered by state colleges and universities in Louisiana on selected demographic characteristics, (2) compare the students declaring transfer and non transfer majors in two-year business programs on selected demographic characteristics, (3) determine the influence of selected factors on the selection of a two-year business major, (4) determine the desirability of two-year business majors as perceived by students enrolled in Louisiana colleges and universities, which offer two-year business programs, and (5) determine the perceptions of students enrolled in Louisiana colleges and universities on selected …

Go to article

Multiresolutional Fault-Tolerant Sensor Integration And Object Recognition In Images., Lakshman Prasad Jan 1995

Multiresolutional Fault-Tolerant Sensor Integration And Object Recognition In Images., Lakshman Prasad

LSU Historical Dissertations and Theses

This dissertation applies multiresolution methods to two important problems in signal analysis. The problem of fault-tolerant sensor integration in distributed sensor networks is addressed, and an efficient multiresolutional algorithm for estimating the sensors' effective output is proposed. The problem of object/shape recognition in images is addressed in a multiresolutional setting using pyramidal decomposition of images with respect to an orthonormal wavelet basis. A new approach to efficient template matching to detect objects using computational geometric methods is put forward. An efficient paradigm for object recognition is described.

Go to article

Management Of Bollworm, Helicoverpa Zea (Boddie), And Tobacco Budworm, Heliothis Virescens (F.), With Transgenic Bt Cotton Genotypes, Microbial Insecticides And Conventional Insect Resistance Traits In Cotton., Charles Andrew White Jan 1995

Management Of Bollworm, Helicoverpa Zea (Boddie), And Tobacco Budworm, Heliothis Virescens (F.), With Transgenic Bt Cotton Genotypes, Microbial Insecticides And Conventional Insect Resistance Traits In Cotton., Charles Andrew White

LSU Historical Dissertations and Theses

Studies were conducted to determine the effectiveness of Bacillus thuringiensis (Bt) insecticides and transgenic Bt cotton in controlling the bollworm (BW), Helicoverpa zea (Boddie) and tobacco budworm (TBW), Heliothis virescens (F.), complex. Laboratory tests indicated that rates $\ge$1.17 liters (form)/ha caused TBW mortality significantly higher than the untreated control 2 hours after treatment (HAT). Dipel ES$\sp\circler$ at 4.68 liters (form)/ha and Condor OF$\sp\circler \ge$ 0.58 liters (form)/ha caused significantly higher TBW mortality than the untreated control at 72 HAT. TBW mortality levels did not significantly increase as Dipel ES$\sp\circler$ or Condor OF$\sp\circler$ dosage rates increased. Results of a persistence study …

Go to article

Rural Industry And Rural Development In China: The Role Of Geography, Transportation, And Policy In Jiangsu Province., Shew-Jiuan B. Su Jan 1995

Rural Industry And Rural Development In China: The Role Of Geography, Transportation, And Policy In Jiangsu Province., Shew-Jiuan B. Su

LSU Historical Dissertations and Theses

A significant change in China since late 1978 is the development of rural industry (also township-village enterprise, or TVE). Rural industry is particularly important in light of China's current policy of socio-economic decentralization. Rural industry not only absorbs surplus labor and pushes the increases of agricultural productivity, it also revitalizes China's previously lethargic economy. In this study, variations in employment, production value, and economic efficiency of rural industry are analyzed in terms of geographical, transportation and policy determinants at the county/city level of Jiangsu Province in China. Rural industry's contribution to agricultural and rural welfare activities, and how levels of …

Go to article

Voices In The Storm: Confederate Rhetoric, 1861-1865., Karen Elizabeth Fritz Jan 1995

Voices In The Storm: Confederate Rhetoric, 1861-1865., Karen Elizabeth Fritz

LSU Historical Dissertations and Theses

From 1861 to 1865, as white southerners waged their unsuccessful struggle for independence, they experienced shattering calamities. With the Civil War mostly fought on southern soil, Confederates witnessed the destruction of their environment, the deaths of their friends and family members, and the demise of their slave labor system. This study concerns the effects of this experience on the southern mindset. In short, this is an examination of discovery and transformation through ordeal. The Confederacy has been the subject of many a historical study. However, this interpretation approaches the subject from a slightly different perspective. Departing from the traditional reliance …

Go to article

Phase Space Structures In Chaotic Quantum Dynamics., Barbara Smetana Helmkamp Jan 1995

Phase Space Structures In Chaotic Quantum Dynamics., Barbara Smetana Helmkamp

LSU Historical Dissertations and Theses

I compare the quantum and classical dynamics of a particle moving in a cosine potential while subject to a time-dependent force. I concentrate here on the behavior of an initially well-localized wave packet at times before the classically chaotic motion is fully developed. I find that the quantum and classical dynamics are indistinguishable well beyond the Ehrenfest time where the wave packet delocalizes. The quantum and classical descriptions first differ precisely when the classical probability density is folded in the vicinity of a hyperbolic fixed point. At this point, the wave function acquires a nodal structure which I show to …

Go to article

Combinatorial Design And Analysis Of Optimal Multiple Bus Systems For Parallel Algorithms., Priyalal D. Kulasinghe Jan 1995

Combinatorial Design And Analysis Of Optimal Multiple Bus Systems For Parallel Algorithms., Priyalal D. Kulasinghe

LSU Historical Dissertations and Theses

This dissertation develops a formal and systematic methodology for designing optimal, synchronous multiple bus systems (MBSs) realizing given (classes of) parallel algorithms. Our approach utilizes graph and group theoretic concepts to develop the necessary model and procedural tools. By partitioning the vertex set of the graphical representation CFG of the algorithm, we extract a set of interconnection functions that represents the interprocessor communication requirement of the algorithm. We prove that the optimal partitioning problem is NP-Hard. However, we show how to obtain polynomial time solutions by exploiting certain regularities present in many well-behaved parallel algorithms. The extracted set of interconnection …

Go to article

Sediment Retention In A Bottomland Hardwood Wetland In Eastern Arkansas., Barbara A. Kleiss Jan 1995

Sediment Retention In A Bottomland Hardwood Wetland In Eastern Arkansas., Barbara A. Kleiss

LSU Historical Dissertations and Theses

One of the often-stated functions of wetlands is their ability to remove sediments and other particulates from water, thus improving water quality in the adjacent aquatic system. However, actual rates of suspended sediment removal have rarely been measured in freshwater wetland systems. To address this issue, suspended sediment dynamics were measured in a 85-km$\sp2$ bottomland hardwood (BLH) wetland adjacent to the highly turbid Cache River in eastern Arkansas during the 1988-90 water years. A suspended sediment mass balance was calculated using depth-integrated, flow-weighted daily measurements at wetland inflow and outflow points. Over the three year period, suspended sediment load decreased …

Go to article

A Study Of The Stress Corrosion Crack Initiation Stage In Alpha-Brass., Kun Lian Jan 1995

A Study Of The Stress Corrosion Crack Initiation Stage In Alpha-Brass., Kun Lian

LSU Historical Dissertations and Theses

The objective of the present work was to provide an insight to the nucleation and evolution of deformation patterns occurring during transgranular stress corrosion cracking (TGSCC) and produce new alternatives for addressing the nature of the embrittlement process. Flat, tensile $\alpha$-brass (72Cu-28Zn) specimens were tested in 5 M NH$\sb4$OH, 0.1 M CuSO$\sb4$ and 1 M NaNO$\sb2$ solutions at a strain rate of $1\times 10\sp{-5}$ s$\sp{-1}.$ Slip band spacing (SBS) and slip band heights (SBH) were measured as a function of strain by conducting interrupted experiments in the SCC environments and were compared with those developed during laboratory air experiments. The …

Go to article

Elongational Rheometry Of Coextruded Polymer Melts., Ajit Vijay Pendse Jan 1995

Elongational Rheometry Of Coextruded Polymer Melts., Ajit Vijay Pendse

LSU Historical Dissertations and Theses

In most key polymer processing operations such as fiber spinning, blow molding and extrusion through a converging die, the dominant mode of flow is elongational. Rheological characterization of polymeric materials in elongational flow is critical for material quality control as well as for process modeling applications. Unlike shear flows, which have been studied extensively, elongational flows are not well understood, primarily due to the experimental difficulties involved in generating a pure and steady elongational flow field. There is a dearth of commercially available elongational rheometers in the present rheological literature; those that are commercially available, are useful only at elongational …

Go to article

Changes Of Antioxidants And Fatty Acid Composition In Stabilized Rice Bran During Storage., Taisun Shin Jan 1995

Changes Of Antioxidants And Fatty Acid Composition In Stabilized Rice Bran During Storage., Taisun Shin

LSU Historical Dissertations and Theses

The effects of extrusion temperature and post extrusion holding time, microwave heating, and gamma irradiation on antioxidants and lipid composition in rice bran were studied. Post extrusion holding time had no apparent effect on rice bran stability. Increased holding times reduced (p $<$ 0.05) total vitamin E. Oryzanol concentration was lower (p $<$ 0.05) only with 6 min holding time. Inactivation of lipolytic enzymes was obtained by extrusion temperatures of 120, 130, and 140$\sp\circ$C. Increased extrusion temperatures reduced the retention of vitamin E and oryzanol during storage. An extrusion temperature of 110$\sp\circ$C provided the highest retention of vitamin E and oryzanol during storage although FFA level was higher (p $<$ 0.05) than that of the other extrusion temperatures from 105 to 375 days. There were no significant (p $>$ 0.05) decreases in individual vitamin E vitamers until 4 min microwave heating. After 8 min heating, individual E vitamers decreased significantly (p $$ 0.05) in FFA level by 24 weeks of storage with microwave heating for 12 min. Microwave heating for 4, 8, and 12 min did not provided adequate inactivation of lipolytic enzymes. Total vitamin …

Go to article

Performing The Community, Telling The Self: Storytelling By Members Of A Group Home For Men With Mental Retardation., Sharon Elizabeth Croft Jan 1995

Performing The Community, Telling The Self: Storytelling By Members Of A Group Home For Men With Mental Retardation., Sharon Elizabeth Croft

LSU Historical Dissertations and Theses

This study uses an ethnographic approach to examine the stories told by members of a group home for men with mental retardation. The author contends that the culture of the group home works to constrain how group home members interact within this community. The author argues, however, that despite the cultural constraints, the men use storytelling to establish their individuality, even though the stories themselves, in their content and in the performance of their telling, often reify cultural constraints and their cultural constructions. The author recounts how she, as ethnographer, interacted within this community. After identifying, describing, and analyzing eight …

Go to article

Press Framing Of Presidential Crisis Rhetoric In A Post-Cold War World: The Haitian Crisis In 1993., Jim Andrew Kuypers Jan 1995

Press Framing Of Presidential Crisis Rhetoric In A Post-Cold War World: The Haitian Crisis In 1993., Jim Andrew Kuypers

LSU Historical Dissertations and Theses

This study employs a historical/critical approach to analyze the response of the Clinton Administration to the Haiti situation during 1993. The relationship between contemporary presidential crisis communication and the agenda-setting and agenda-extension functions of the press is especially considered. Specifically, this study employs a frame analysis which compares the frame generated by the Clinton Administration with that used by the press, represented by New York Times and the Washington Post. The importance of this study lies in its timeliness; President Clinton is the first atomic-age President not to have the Cold War meta-narrative to use in legitimating international crises. Prior …

Go to article

The Chemist In The College Chemistry Classroom: A Case Study Of Excellence., Anthony Quilah Zehyoue Jr Jan 1995

The Chemist In The College Chemistry Classroom: A Case Study Of Excellence., Anthony Quilah Zehyoue Jr

LSU Historical Dissertations and Theses

Prominent in the agenda of science education research nowadays are studies focusing on the science teacher/professor. Consequently, this study focuses on a particular chemistry professor at Louisiana State University. He was chosen because of his outstanding and award-winning teaching activities; his voluntary workshops for area high school chemistry teachers; and his active involvement with a college chemistry curriculum reform committee, serving as chairman of the committee. Additionally, his continuing accomplishments and engagements with inorganic chemistry research activities are noteworthy. He was studied for three semesters in his teaching of introductory level chemistry to a large freshman class and his teaching …

Go to article

Polynuclear Aromatic Hydrocarbons With Curved Surfaces: Models And Precursors For Fullerenes., Atteye Houssein Abdourazak Jan 1995

Polynuclear Aromatic Hydrocarbons With Curved Surfaces: Models And Precursors For Fullerenes., Atteye Houssein Abdourazak

LSU Historical Dissertations and Theses

This dissertation deals with the synthesis and characterization of polynuclear aromatic hydrocarbons with curved surfaces whose carbon frameworks may be identified on the C$\sb{60}$ surface. C$\sb{60},$ known as buckminsterfullerene, is the most important member of the fullerene family, the recently discovered new form of elemental carbon. Chapter one presents the synthesis and the dynamic $\sp1$H NMR behavior of cyclopentacorannulene (CPC), the first conformationally "locked", fullerene-related, bowl-shaped aromatic hydrocarbon. The determined barrier for the ring inversion of the dihydro CPC is more than twice as large as that of corannulene. In contrast to the crystal structure of corannulene, the crystal structure …

Go to article

Ammoniation Of Cellulosic Materials For Use In Fertilization And Oil Spill Remediation., Ananda Padmasiri De Silva Jan 1995

Ammoniation Of Cellulosic Materials For Use In Fertilization And Oil Spill Remediation., Ananda Padmasiri De Silva

LSU Historical Dissertations and Theses

The stringent environmental regulations, rising cost, public concerns, and the limited availability of landfills for disposal of organic wastes have stimulated efforts to identify cost-effective, environmentally sound, alternative waste disposal technologies. The value of organic wastes as soil amendments is limited by their low nutrient value, occasional strong odors and high costs of transportation. The primary goal of this investigation was to develop a process to enrich the N content and to reduce the water content of organic wastes in order to enhance the value of these wastes for use in fertilization and oil spill remediation. A chemical process was …

Go to article

Myoglobin And Lipid Stability Of Meat And Liposome Model Systems With Modified Atmosphere Packaging., Nai-Yun Huang Jan 1995

Myoglobin And Lipid Stability Of Meat And Liposome Model Systems With Modified Atmosphere Packaging., Nai-Yun Huang

LSU Historical Dissertations and Theses

The influences of lipid peroxidation and pigment autoxidation in beef and liposome model systems were examined in modified atmosphere packaging containing oxygen (O$\sb2).$ Ground beef of 75 and 90% lean were packaged in 80% nitrogen (N$\sb2){:}20\%$ carbon dioxide (C$\sb2)$ for distribution and storage atmospheres were exchanged for 80% $\rm O\sb2{:}20\%\ CO\sb2$ at 15, 18, 20, 22, 25, 27 or 29 days postpackaging before retail display. On the same postpackaging day, samples from longer gas exchange, but shorter display times had lower lipid oxidation, psychrotrophic growth, metmyoglobin formation, discoloration and odor scores when compared with samples from shorter gas exchange times …

Go to article

Selenium Speciation In Natural Waters: Separation Technique, Kinetic And Case Studies., William Charles Glover Jan 1995

Selenium Speciation In Natural Waters: Separation Technique, Kinetic And Case Studies., William Charles Glover

LSU Historical Dissertations and Theses

Several methods of separating the dissolved 4+ and 6+ oxidation states of selenium were investigated. The use of Dowex 1 anion exchange resin in packed columns was not satisfactory as quantitative separation was not obtained. The determination of selenite after formation of a fluorescent complex with 2,4-diaminonaphthalene was quantitative but the procedure was too involved for routine work. Separation was achieved by co-precipitating the selenite from solution with ferric hydroxide precipitate formed between pH 5 and 6. The co-precipitation technique is effective from 4 to 50 degrees centigrade and is unaffected by salinity although phosphates interfere at high concentrations. The …

Go to article

John Guare: In Search Of America., Kenny Clifford Gannon Jan 1995

John Guare: In Search Of America., Kenny Clifford Gannon

LSU Historical Dissertations and Theses

This study examines the full scope of Guare's plays, from his Off-Off Broadway experimentation in the sixties through his 1992 play Four Baboons Adoring the Sun, and their place in America's cultural landscape. Set against the framework of modern cultural history, the investigation attempts to reveal Guare's vision of modern America's quest for fulfillment through the correlation of textual and stylistic analysis, critical response, and Guare's stated views. The study contends that Guare's portrayal of American desire unmasks the mass media's contamination of the American dream. From the very inception of his dramatic imagination, Guare has mixed fantasy and reality …

Go to article

Remediation Of Contaminated Soils Using A Plant Based Surfactant., Raghava Rao Kommalapati Jan 1995

Remediation Of Contaminated Soils Using A Plant Based Surfactant., Raghava Rao Kommalapati

LSU Historical Dissertations and Theses

A plant based surfactant extracted from fruit pericarps of Sapindus mukurossi (Ritha) is employed for the first time to investigate remediation of contaminated soils. A method for preparing natural surfactant solutions was developed and the solutions were characterized followed by generation and characterization of colloidal gas aphron (CGA) suspensions produced with these solutions. The variation of hexachlorobenzene (HCB) solubility with natural surfactant solutions was estimated and desorption of HCB from soils was investigated with batch and on-dimensional column experiments. Bioenhancement of soil microorganisms in natural surfactant solutions was studied under both aerobic and anaerobic conditions. The empirical formula for natural …

Go to article

Educational Reform And The Social Democratic Party In Weimar Prussia, 1918-1932., Patricia Gebhart Mcfarland Jan 1995

Educational Reform And The Social Democratic Party In Weimar Prussia, 1918-1932., Patricia Gebhart Mcfarland

LSU Historical Dissertations and Theses

Education in Germany has historically been a matter for the individual states rather than the central government. In Prussia in the 1920s, elementary education was segregated by religious denomination, while the upper grades were divided according to occupational specialty. The Social Democratic Party was the only party which proposed to change the system, calling for the secularization and integration of the schools. When it unexpectedly found itself in power in November 1918, the party's commitment to its program was tested. While the leadership continued to affirm its support for educational reform throughout the 1920s, it did little to introduce any …

Go to article

Experimental And Numerical-Modeling Studies Of A Field-Scale Hazardous Waste Rotary Kiln Incinerator., Allen Lee Jakway Jan 1995

Experimental And Numerical-Modeling Studies Of A Field-Scale Hazardous Waste Rotary Kiln Incinerator., Allen Lee Jakway

LSU Historical Dissertations and Theses

A comprehensive study of rotary kiln incineration is ongoing at Louisiana State University. Through experimentation at all levels and numerical modeling, the underlying physical processes are searched out and studied with the intent to improve the understanding of how rotary kiln incinerators process waste with the eventual goal of creating a fully predictive numerical model. The experimental work presented here focuses on mapping combustion gas temperature and, for the first time, velocity fields of a field-scale, industrial incinerator. Measurements are made at multiple points across an upper quadrant of the kiln near its exit using a bidirectional pressure probe, suction …

Go to article

Ipcc++: A Concurrentc++ For Centralized And Distributed Memory Models., Shelly S. Stubbs Jan 1995

Ipcc++: A Concurrentc++ For Centralized And Distributed Memory Models., Shelly S. Stubbs

LSU Historical Dissertations and Theses

InterProcess Communication with C++, (IPCC++), is a concurrent object-oriented programming language that supports concurrency for centralized and distributed memory models while maintaining the high level of abstraction associated with object-oriented languages. The IPCC++ language model is a natural extension of the C++ programming language which introduces and supports the following features of concurrency: process concept, mechanism for process instantiation, static and dynamic process declaration, inter-object concurrency, monitor structure, condition variable, socket structure, typed message passing interprocess communication, synchronous and asynchronous communication, client/server paradigm, and run-time communication error detection. Features of concurrency are introduced as complete objects using the primitives of …

Go to article

First Prev Next Last