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

Digital Commons Network™

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

2003

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 1 - 30 of 12367

Full-Text Articles in Entire DC Network

The Concept Of Social Exclusion And Rural Development Policy, F. Dale Parent, Bonnie L. Lewis Dec 2003

The Concept Of Social Exclusion And Rural Development Policy, F. Dale Parent, Bonnie L. Lewis

Journal of Rural Social Sciences

Since the early 1970s rural research and public education programs have been intensified in efforts to improve living conditions and strengthen community life in rural America (Southern Perspectives 2000). During much of the 1990s, the nation, including the rural South, experienced a growing economy, a booming stock market, and declining unemployment rates (Gibbs 2001). However, many serious social problems traditionally associated with the rural South remain to this day (Gibbs 2001). This paper introduces the concept of social exclusion, used extensively in European countries and now part of the European Union's official lexicon. Social exclusion is defined as the process …


One Engineer And A Dog: Technological Change And Social Restructuring In Alabama's Pulp And Paper Industry, Peter R. Sinclair, Conner Bailey, Mark Dubois Dec 2003

One Engineer And A Dog: Technological Change And Social Restructuring In Alabama's Pulp And Paper Industry, Peter R. Sinclair, Conner Bailey, Mark Dubois

Journal of Rural Social Sciences

We apply a commodity systems analysis to examine a series of changes that are transforming Alabama's pulp and paper industry. Alabama is a critical area for investigation because it lies at the heart of North America's principle pulp and paper production zone. Industry restructuring is a complex process involving the reorganization of capital and corporate ownership, as well as changes in technologies, which affect the labor process. For example, a recent spate of corporate mergers has resulted in concentration of mill ownership and has accelerated the prevalence of sub-contracting. Indeed, the expansion of sub-contracting into new realms raises the fundamental …


Arkansas Water Resources Center Annual Technical Report, 2003, Arkansas Water Resources Center Dec 2003

Arkansas Water Resources Center Annual Technical Report, 2003, Arkansas Water Resources Center

Arkansas Water Resources Center Annual Report

No abstract provided.


Public Interests In Private Property: Conflicts Over Wood Chip Mills In North Carolina, Sarah T. Warren Dec 2003

Public Interests In Private Property: Conflicts Over Wood Chip Mills In North Carolina, Sarah T. Warren

Journal of Rural Social Sciences

The controversy over chip mills in North Carolina is part of a larger public discussion of forest policy throughout the southern Appalachians, Ozarks, and Ouachitas. Chip mills have become a symbol of forest resource exploitation in the southern Appalachians, and many studies and commissions have been established for analysis of the conflict. In this paper I describe the tensions that have arisen between new public views of appropriate property use and more traditional views of natural resource use. Based on the results of a social impact assessment conducted in the summer of 1999 as part of a broader study on …


Public Perceptions About Biotechnology, Don E. Albrecht Dec 2003

Public Perceptions About Biotechnology, Don E. Albrecht

Journal of Rural Social Sciences

Biotechnology represents a new generation of scientific and technological advancements and has the potential to result in profound changes in twenty-first century agriculture. Since the general public are the consumers of biotechnology products, public acceptance is vital. This article presents the results of a survey of a random sample of Texas residents on two significant issues. First, to what extent is the general public supportive of biotechnology, and second, are there some segments of the population that are more supportive of biotechnology than other segments. Survey results make it apparent that the Texas general public has a clear mandate about …


Spatially Varying Threshold Models For The Automated Segmentation Of Radiodense Tissue In Digitized Mammograms, Richard Edson Eckert Iii Dec 2003

Spatially Varying Threshold Models For The Automated Segmentation Of Radiodense Tissue In Digitized Mammograms, Richard Edson Eckert Iii

Theses and Dissertations

The percentage of radiodense (bright) tissue in a mammogram has been correlated to an increased risk of breast cancer. This thesis presents an automated method to quantify the amount of radiodense tissue found in a digitized mammogram. The algorithm employs a radial basis function neural network in order to segment the breast tissue region from the remainder of the X-ray. A spatially varying Neyman-Pearson threshold is used to calculate the percentage of radiodense tissue and compensate for the effects of tissue compression that occurs during a mammography procedure. Results demonstrating the efficacy of the technique are demonstrated by exercising the …


Impacts Of Automatic Identification System On Collision Avoidance And The Need For Training, Junzhong Bao Dec 2003

Impacts Of Automatic Identification System On Collision Avoidance And The Need For Training, Junzhong Bao

World Maritime University Dissertations

No abstract provided.


Pion-Kaon Correlations In Central Au+Au Collisions At √SNn=130 Gev, Star Collaboration, T.D. Gutierrez Dec 2003

Pion-Kaon Correlations In Central Au+Au Collisions At √SNn=130 Gev, Star Collaboration, T.D. Gutierrez

Physics

Pion-kaon correlation functions are constructed from central Au+Au STAR data taken at √sNN=130  GeV by the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The results suggest that pions and kaons are not emitted at the same average space-time point. Space-momentum correlations, i.e., transverse flow, lead to a space-time emission asymmetry of pions and kaons that is consistent with the data. This result provides new independent evidence that the system created at RHIC undergoes a collective transverse expansion.


Multi-Sensor Data Fusion Using Geometric Transformations For The Nondestructive Evaluation Of Gas Transmission Pipelines, Philip James Kulick Dec 2003

Multi-Sensor Data Fusion Using Geometric Transformations For The Nondestructive Evaluation Of Gas Transmission Pipelines, Philip James Kulick

Theses and Dissertations

Nondestructive evaluation (NDE) plays a vital component in the operation and maintenance of large infrastructure such as gas transmission pipelines, nuclear power plants, aircraft, bridges and highways, etc. As this infrastructure continues to age it is essential that the inspection techniques reliably and accurately predict the integrity of these systems. No single NDE method is capable of inspecting all types of anomalies and extracting all required information – a combination of methods must be used and the resulting data fused. Moreover, newer systems that are developed are often made of composite materials that include metals and dielectrics. One interrogation modality …


Piezoresistive Properties Of Ito Strain Sensors Prepared With Controlled Nanoporosity, Otto J. Gregory, Tao You Dec 2003

Piezoresistive Properties Of Ito Strain Sensors Prepared With Controlled Nanoporosity, Otto J. Gregory, Tao You

Chemical, Biomolecular, and Materials Engineering Faculty Publications

A ceramic strain gage based on reactively sputtered indium-tinoxide (ITO) thin films is being developed to monitor the structural integrity of components employed in aerospace propulsion systems operating at temperatures in excess of 1500°C. The hightemperature stability and piezoresistive properties depend to a large extent on the thickness of the active ITO strain elements comprising these ceramic strain gages. Scanning electron microscopy of the thick ITO sensors revealed a partially sintered microstructure consisting of a contiguous network of submicrometer ITO particles with well-defined necks and isolated nanoporosity. It appeared that densification of the ITO particles was retarded during high-temperature exposure …


An Integrated Model For Technology Assessment And Choice For Rural Development In Developing Countries, Abdallah Chungu Dec 2003

An Integrated Model For Technology Assessment And Choice For Rural Development In Developing Countries, Abdallah Chungu

Tanzania Journal of Engineering and Technology (TJET)

Abstract


Evaluation Of Pollution Loading Into Msimbazi River By Rapid Assessment And Direct Measurement Methods, J. H. Y. Katima Dec 2003

Evaluation Of Pollution Loading Into Msimbazi River By Rapid Assessment And Direct Measurement Methods, J. H. Y. Katima

Tanzania Journal of Engineering and Technology (TJET)

This paper assesses the suitability of Rapid Assessment (RA) methodology as a tool for making an environmental pollution inventory in data poor situation. The RA method was applied to estimate Biological Oxygen Demand (BOD), nitrogen and phosphorous loading into the Msimbazi River in Dar es salaam, Tanzania. The Direct Measurement (DM) was done to validate the results obtained from RA. The methodology is based on estimating waste loads from function variables such as production rate, population, etc. and pollution intensities from domestic, industry and agricultural sources. The incorporation of penetration factors for waste loads reduction refines the assessment procedure. The …


Prediction Of The Response Of Rectangular Cladding Panels To Wind Loading In The Time Domain, Ambrose Shirima Dec 2003

Prediction Of The Response Of Rectangular Cladding Panels To Wind Loading In The Time Domain, Ambrose Shirima

Tanzania Journal of Engineering and Technology (TJET)

The analysis and subsequent design of cladding panels is traditionally based on quasi-static calculation of the wind loads. Pressure coefficients, which are derived from wind tunnel measurements and a design wind speed, are used to compute the wind loading. The codes of practice give the pressure coefficients and the guidelines of deriving the design wind speed from factors, which are specific to the site namely basic wind speed, topography, ground roughness and height above the ground. The concept of design wind speed is simple but it overlooks the resonant vibrations caused by the wind. The paper discusses a procedure for …


Surface Titration Of Colloidal Alpha-Alumina, J. W. Ntalikwa Dec 2003

Surface Titration Of Colloidal Alpha-Alumina, J. W. Ntalikwa

Tanzania Journal of Engineering and Technology (TJET)

The surface charge density (σ₀) of colloidal alumina (α-Al₂O₃) suspended in 1:1 electrolytes (NaCl, NaNO₃, CsCl and CsNO₃) at different electrolyte concentration (c₀) was determined using acid-base titration. The data were described in terms of the Triple Layer Model (TLM) of electric double layer. It was observed that the polarity of σ₀ could be varied through a point of zero charge (PZC) by varying the pH of the suspension. The PZCs were observed to occur at pH = 7.8 ± 0.1, 7.6 ± 0.2, 8.5 ± 0.1 and 8.3 ± 0.1 in NaCl, NaNO₃, CsCl and CsNO₃, respectively. It was …


A System Thinking Approaching Maintenance, Production And Quality, E. A. M. Mjema Dec 2003

A System Thinking Approaching Maintenance, Production And Quality, E. A. M. Mjema

Tanzania Journal of Engineering and Technology (TJET)

The concepts of system thinking and its applicability in maintenance management was analysed in this article. The author analysed various maintenance policies, which have inclination to the concept of system thinking. The maintenance policies revisited include the Integration of Maintenance (IM), Total Quality Maintenance (TQMain), Failure Mode and Effect Analysis (FMEA), and Total Productive Maintenance (TPM). All these strategies are aimed at utilising effectively the maintenance personnel by giving some of the responsibilities of maintenance to production personnel. It was found that, although the founder of these techniques did not mention the concepts of system thinking in their methods, however, …


Hdl Implementation Of A Controller Area Network Node, Anthony Richard Marino Dec 2003

Hdl Implementation Of A Controller Area Network Node, Anthony Richard Marino

Theses and Dissertations

With increasing technology inside automobiles, especially law enforcement vehicles, there is a growing need for centralized wiring and device interconnection methods. Each new technology, such as GPS navigation units and in-vehicle video systems, includes a corresponding wiring harness that needs installation. The summation of all these hardwired technologies leads to large volumes of wire that negatively affect safety, power demands, and future design opportunities. A new trend among automotive manufacturers is to design and implement innovative networks that allow for shared communications between technologies.

This thesis presents the design, development, and implementation of an in-vehicle network that will centralize connections …


Evaluation Of The Flail Space Model Utilizing Event Data Recorder Technology, Douglas John Gabauer Dec 2003

Evaluation Of The Flail Space Model Utilizing Event Data Recorder Technology, Douglas John Gabauer

Theses and Dissertations

Developed in the early 1980's, the flail space model has become the standard method for estimating occupant risk in full-scale crash tests involving roadside safety features. The widespread availability of airbags and increased seat belt usage rates in today's vehicle fleet, however, raise serious questions regarding the validity of the model. Recent implementation of Event Data Recorder (EDR) technology in a number of late model vehicles presents a different perspective on the assessment of the validity of occupant risk based on the flail space model. EDRs are capable of electronically recording data such as vehicle speed, brake status and throttle …


Development Of An Augmented Haptic Control For In-Vehicle Law Enforcement Applications, Edward R. Guest Iii Dec 2003

Development Of An Augmented Haptic Control For In-Vehicle Law Enforcement Applications, Edward R. Guest Iii

Theses and Dissertations

Typical police vehicles are filled with as much technology as the department can afford. Everything from the newest digital camera system to a simple entertainment radio is within the reach of an officer. Currently, most of these systems are installed without any consideration toward the other systems or the interaction required between the driver and the car. The lack of a systems approach in the installation has spawned a project to look at the safety and overall system installation in the New Jersey State Police vehicles.

The research presented in this thesis suggests consolidation of the various controls into one …


A Selection And Comparison Of Risk Assessment Methods And Models To Be Used For The International Ship And Port Facility Security Code, Fidel Eduardo Reyes Melendez Dec 2003

A Selection And Comparison Of Risk Assessment Methods And Models To Be Used For The International Ship And Port Facility Security Code, Fidel Eduardo Reyes Melendez

World Maritime University Dissertations

No abstract provided.


A Study On The Preparation For The Introduction Of The Dual Purpose Training System, Philip Mathews Dec 2003

A Study On The Preparation For The Introduction Of The Dual Purpose Training System, Philip Mathews

World Maritime University Dissertations

No abstract provided.


Cost Comparison Between The North-South Corridor Northern Europe To The Persian Gulf And The Suez Canal Route, Masoud Mohsenpour Dec 2003

Cost Comparison Between The North-South Corridor Northern Europe To The Persian Gulf And The Suez Canal Route, Masoud Mohsenpour

World Maritime University Dissertations

No abstract provided.


Effective Dual Purpose Training For Competent Seafarers And Competitive Shipping, Masahiro Sugimoto Dec 2003

Effective Dual Purpose Training For Competent Seafarers And Competitive Shipping, Masahiro Sugimoto

World Maritime University Dissertations

No abstract provided.


The Logistics Potential Of The Aqaba Special Economic Zone As A Regional Gateway, Sufian Atalah Al-Muhaisen Dec 2003

The Logistics Potential Of The Aqaba Special Economic Zone As A Regional Gateway, Sufian Atalah Al-Muhaisen

World Maritime University Dissertations

No abstract provided.


Centrifugal Extraction Of Avocado Oil From The Pulp, J. W. Ntalikwa Dec 2003

Centrifugal Extraction Of Avocado Oil From The Pulp, J. W. Ntalikwa

Tanzania Journal of Engineering and Technology (TJET)

Absract


Load Flow Solution For Three-Phase Mv Radial Distribution Connected Network Supplying Different Line Topologies, B. J. Kundy Dec 2003

Load Flow Solution For Three-Phase Mv Radial Distribution Connected Network Supplying Different Line Topologies, B. J. Kundy

Tanzania Journal of Engineering and Technology (TJET)

In this paper, a load flow solution for the Medium Voltage (MV) three-phase radial distribution in delta-delta (Δ–Δ) connected network supplying different line topologies such as three phase, phase to phase and single-wire earth return (SWER) networks is presented. The general voltage related network equations are developed using Kirchhoff’s voltage and current laws. Development of a solution to the load flow analysis applying the developed general voltage related network equations is proposed in order to evaluate the network voltage profile. Various numbers of arrays are developed for the identification of the network under study. The proposed method is a new …


The Inclusion Behaviothe Inclusion Behavior Of Sodium Compounds In Sub-Micron Particles Formed During Coal Combustionr Of Sodium Compounds In Sub-Micron Particles Formed During Coal Combustion, Iddi Mkilaha Dec 2003

The Inclusion Behaviothe Inclusion Behavior Of Sodium Compounds In Sub-Micron Particles Formed During Coal Combustionr Of Sodium Compounds In Sub-Micron Particles Formed During Coal Combustion, Iddi Mkilaha

Tanzania Journal of Engineering and Technology (TJET)

During combustion of coal, biomass and sewage sludge, metallic compounds especially alkali metals such as sodium and potassium vaporize and form fumes which are emitted with the exhaust gases. These fumes are corrosive to the turbine blades of power plants. To minimize corrosion, efforts have been made to control the condensation phase of these metals. In this study, the evolution and inclusion of sodium in sub-micron particles was investigated using a drop tube furnace and a low-pressure impactor (LPI). Four types of coal with different chemical properties were tested. The results suggest that a reaction-controlled mechanism and nucleation via chemical …


Simulation Of The Communication Process In A Pin Mill, Ambrose J. M. Itika Dec 2003

Simulation Of The Communication Process In A Pin Mill, Ambrose J. M. Itika

Tanzania Journal of Engineering and Technology (TJET)

Prediction of the performance of comminution equipment by mathematical models and simulation poses a great challenge to the chemical engineer. This paper describes the simulation of grinding results obtained using an impact mill. Single particle results have been used to generate breakage and selection coefficients that were used for the evaluation of the model. Results have shown that simulation model is in good agreement with the experimental data obtained at a circumferential speed above 60 m/s. At lower speeds, the models shows only partial agreement in the middle particle size ranges. The application of the model is therefore limited for …


Using Pedotransfer Functions To Predict Saturated Hydraulic Conductivity For Layered Soil Profiles A Case Study At The Sokoine University Of Agriculture Farm, Tanzania, M. K. Mulengera Dec 2003

Using Pedotransfer Functions To Predict Saturated Hydraulic Conductivity For Layered Soil Profiles A Case Study At The Sokoine University Of Agriculture Farm, Tanzania, M. K. Mulengera

Tanzania Journal of Engineering and Technology (TJET)

Saturated soil hydraulic conductivity (SHC), is useful for land resources management. But it is difficult, time consuming, and labour intensive to measure in the field. These problems can be overcome through the use of pedotransfer functions (PTFs), which relate the SHC to readily available soil physical, chemical, and biological parameters. The existing PTFs were developed in temperate countries using homogeneous core soil samples. Thus, these PTFs are not useful for tropical soils with different properties and for layered soil profiles. In this paper, field measured SHC values are related to representative profile soil properties (RSPSPs) that are determined using horizons’ …


The Emerging Role Of The Classification Society As An Extension Of The Flag State Administration, Rogelio Estrada Villanueva Jr. Dec 2003

The Emerging Role Of The Classification Society As An Extension Of The Flag State Administration, Rogelio Estrada Villanueva Jr.

World Maritime University Dissertations

No abstract provided.


The Integration Of Existing Regulatory Measures To Develop An Effective Quality System For The Maritime Industry, Rafael Quiroz Vera Dec 2003

The Integration Of Existing Regulatory Measures To Develop An Effective Quality System For The Maritime Industry, Rafael Quiroz Vera

World Maritime University Dissertations

No abstract provided.