Engineering Commons^™

Multi-Diameter Vise Clamp And Collet Jaw, Lloyd D. Snell

Lloyd D Snell

A machine vise has incorporated into it a pair of collet jaws that allows for the machining of top surfaces and ends of a held part. The collet jaws are secured to each of the clamping blocks on the machine vise. The collet jaws include at least one collet pocket shaped into the inside surface of each collet jaw. The collet pockets are designed to receive collet pads which are shaped to hold a generally cylindrical part with varying diameters. By having more than one collet pocket within each collet jaw, several different sizes of collet pads can be utilized …

Control Applications: Driving Control Research?, Raúl Ordóñez

Raúl Ordóñez

No abstract provided.

Dependence Of Open-Circuit Voltage In Hydrogenated Protocrystalline Silicon Solar Cells On Carrier Recombination In P/I Interface And Bulk Regions, Joshua M. Pearce, Randy J. Koval, Andre S. Ferlauto, Robert W. Collins, Christopher R. Wronski, Jeffrey Yang, Subbhendu Guha

Joshua M. Pearce

Practical Design Considerations For Signal Conditioning Unit Interfaced With Multi-Point Snow Temperature Recording System, Raman K. Attri, B. K. Sharma, M. A. Shamshi

Raman K. Attri

Multi-point Temperature Measurement has always been very important aspect of physical instrumentation mainly in environmental and Industrial application. A multi-point temperature measurement system has been developed to measure temperature at different points simultaneously. This multi-channel system is designed specifically for measuring snow temperature at 28 different points in snow layers and this multi-point data is used in modeling of snow cover. The interfacing of such multi-channel system to Data acquisition system is one of the most critical design aspects, which affect the overall performance of the system. The temperature sensor system and Data Acquisition System may be working satisfactorily when …

Bezpośrednie I Pośrednie Efekty Wprowadzenia Ciągłego Odlewania Stali W Bilansie Emisji Zanieczyszczeń Z Huty Żelaza, Marian Mazur, Marek Bogacki, Robert Oleniacz

Robert Oleniacz

This paper presents a comprehensive analysis of the impact of continuous casting technology on emissions of air pollutants from "Katowice" Steelworks in Dąbrowa Górnicza (Poland). Sources of emissions occurring in the manufacturing process and emissions levels have been identified. Implementation of continuous casting of steel has increased the efficiency of production and brought substantial ecological effects.

English title: Direct and indirect effects of introduction of continuous casting of steel in the balance sheet of pollutant emissions from "Katowice" Steelworks.

A New Autonomous Underwater Vehicle For Imaging Research, C. Roman, O. Pizarro, R. Eustice, H. Singh

Christopher N. Roman

Currently, unmanned underwater vehicles either tend to be cumbersome and complex to run, or operationally simple, but not quite suitable platforms for deep water imaging. This paper presents an alternative design in the form of a new low cost and easier to use autonomous underwater vehicle (AUV) for imaging research. The objective of the vehicle is to serve as a readily available and operationally simple tool that allows rapid testing of imaging algorithms in areas such as photomosaicking, 3D image reconstruction from a single camera, image based navigation, and multi-sensor fusion of bathymetry and optical data. These are all current …

Development Of High Performance Concrete Using Silica Fume At Relatively High Water-Binder Ratios, Hilmi Mahmud

Hilmi Mahmud

The aim of this study was to investigate the possibility of developing high performance concrete (HPC) using silica fume (SF) at relatively high water-binder ratios. For this purpose, water-binder ratios of 0.45 and 0.50 were considered. Test specimens were air and water cured and exposed to a medium temperature range of 20 °C to 50 °C. The compressive strength, modulus of elasticity and initial surface absorption (ISA) of hardened concrete were determined in the laboratory. Test results indicated that concrete under water curing offers the best results. The highest level of compressive strength and modulus of elasticity and the lowest …

Sensor And Method Of Use, Us Patent # 6,105,428, John E. Schmiesing, Guang X. Li, Juergen A. Foerstner, Muh-Ling Ger, Paul L. Bergstorm, Frank A. Shemansky

Paul Bergstrom

Semiconductor Device Having A Cavity And Method Of Making, Us Patent # 6,087,701, Paul L. Bergstorm, Muh-Ling Ger

Paul Bergstrom

Modeling For E-Service Creation, Cécile Péraire, Derek Coleman

Cécile Péraire

No abstract provided.

Functional Infrared Imaging Of The Breast, J. Keyserlingk, P. Ahlgren, E. Yu, N. Belliveau, M. Yassa

Edward Yu

In order to re-assess the potential contribution of infrared (IR) imaging as a first-line component of a multi-imaging strategy using currently available technology, we first review the history of its introduction and clinical application, including the results of the Breast Cancer Detection Demonstration Projects (BCDDP). We then discuss experiments with a new high-resolution, computerized IR station and software program acquired by the Ville Marie Breast Center to assess IR imaging's ability to complement clinical examination and mammography in the early detection of breast cancer. Our goal is to show that high-resolution IR imaging provides additional safe, practical, and objective information …

Advances In Fusion Of High Resolution Underwater Optical And Acoustic Data, H. Singh, C. Roman, L. Whitcomb, D. Yoerger

Christopher N. Roman

We report efforts to merge data from the complementary modalities of optical and acoustic sensing for obtaining more accurate representations of the seafloor. We show that the principal obstacles to merging the acoustic and optical imaging modalities are the distortions inherent to each modality. The construction of geometrically accurate photomosaics is dominated by incremental errors arising as individual images are scaled and warped to form the photomosaic. For microbathymetric mapping, principal errors arise from sensor position and orientation calibration parameters that affect our ability to construct maps from sonar data that are commensurate with sensor and navigation resolution. We show …

Time Domain Probabilistic Risk Assessment:, George H. Baker, Charles T. C. Mo

George H Baker

For critical facilities, survivability and reconstitution in stressful environments generated by electromagnetic transients, sabotage, terrorist activity, military conflict, or Murphy’s laws are issues of concern. Critical fixed facilities are likely to be functionally complex and their system-wide failure probabilities, modes, and consequences are often not obvious. To analyze and quantify survivability, existing probabilistic risk assessment tools usually provide a “snapshot” of failure modes at a single point of time for certain initiating conditions. Likewise, elaborate physics models developed to treat weapons effects on structures and individual functional components compute effects at a single time point.

We have developed a tool …

Software Engineering For Startups, Todd Sedano

Todd Sedano

My interests include finding Effective Processes and learning which processes are best suited for startups. The nature of small business, the agility to change direction quickly, allows it to handle minor bad software practices better. However, failure for a startup may crater the company where as a large company may recover from the fumble. Due to the fierce competition for a startup with limited resources, we should consider tasks that reduce the time to market.

Modeling E-Service Based Systems, Cécile Péraire

Cécile Péraire

No abstract provided.

Artificial Neural Network Technologies Applied To Road Condition Classification Using Acoustic Signals, Kevin Mcfall

Kevin McFall

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Toko Obat Dewasa Pasutri

Lighting Display And Assembly Kit, Lloyd D. Snell

Lloyd D Snell

A versatile lighting decoration has a display sheet fabricated from a transparent and resilient film. An outline of a predetermined shape is marked on the film and a plurality of apertures placed through and along the outline. A string of lights having multiple bulbs, each bulb fitted within a socket adapted for gripping the display sheet, is releasably secured in the apertures to generate a lighted image of the predetermined shape that may be highlighted by one or more additional strings of lights.

Service-Learning And Engineering Ethics, Michael Pritchard

Michael Pritchard

Review Of Rosa Lynn B. Pinkus, Et.Al., Engineering Ethics: Balancing Cost, Schedule, And Risk, Michael Pritchard

Michael Pritchard

Intelligent Flow Control Under Game Theoretic Framework, Huimin Chen, Yanda Li

Huimin Chen

No abstract provided.

Commande Vectorielle Indirecte D'Un Moteur À Induction Par Logique Floue, Boukhemis Chetate , Aissa Kheldoun

Boukhemis Chetate

La commande vectorielle indirecte est actuellement la technique la plus utilisée pour contrôler la vitesse (ou la position) des actionneurs électriques à courant alternatif. Malheureusement les paramètres de la machine changent en raison de l'échauffement de ses parties ou à cause de l'interaction avec le mécanisme entraîné. Le présent travail, est consacré à l'application de la logique floue, d'une part, pour régler et adapter la constante de temps rotorique du moteur découplé par la technique à champ orienté et, d'autre part, en vue d'améliorer les performances correspondantes en cas de changement du moment d'inertie et d'application de la charge. Par …

Logic-Based Methods For Optimization: Combining Optimization And Constraint Satisfaction, John Hooker

John Hooker

No abstract provided.

Thermodynamic Analysis Of Convective Heat Transfer In An Annular Packed Bed, Yasar Demirel, R Kahraman

YASAR DEMIREL

A combination of the first and second law of thermodynamics has been utilized in analyzing the convective heat transfer in an annular packed bed. The bed was heated asymmetrically by constant heat fluxes. Introduction of the packing enhances wall to fluid heat transfer considerably, hence reduces the entropy generation due to heat transfer across a finite temperature difference.

Blending Of Immiscible Polymers In A Mixing Zone Of A Twin Screw Extruder- Effects Of Compatibilization, William Macknight, O. Franzheim, T. Rische, M. Stephan

William MacKnight

Miscibility And Characterization Of The Ternary Crystalline System: Poly(Vinyl Butyral)/Poly(Vinyl Alcohol)/Nylon6, William Macknight, H. Jeong, M. Rooney, D. J. David, F. E. Karasz, T. Kajiyama

William MacKnight

No abstract provided.

Miscibility Of Polyvinyl Butyral/Nylon 6 Blends, William Macknight, H. Jeong, M. Rooney, D. J. David, F. E. Karasz, T. Kajiyama

William MacKnight

No abstract provided.

Rapid Solidification: Fundamentals And Modeling, Guo-Xiang Wang, Vish Prasad

Dr. Guo-Xiang Wang

No abstract provided.

On The Effective Heat Transfer Parameters In A Packed Bed, Yasar Demirel, R.N. Sharma, H.H. Ali

YASAR DEMIREL

Heat transfer behavior of fluid flow through packed tube and channel has an important impact on the de- sign and operation of catalytic reactors.

Thermodynamic Analysis Of Thermomechanical Coupling Incouette Flow, Yasar Demirel

YASAR DEMIREL

Couette ¯ow provides the simplest model for the analysis of heat transfer for ¯ow between parallel plates and between two coaxial cylinders. Design of such devices with the consideration of the thermo- mechanical coupling of viscous heat generation and Couette ¯ow is important since they are used in lubri- cation, polymer and food processing, and viscometry.