Development Of Technology Parameter Towards Shipbuilding Productivity Predictor Using Cubic Spline Approach,
2010
Jurusan Teknik Perkapalan, FTK, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia
Development Of Technology Parameter Towards Shipbuilding Productivity Predictor Using Cubic Spline Approach, Bagiyo Suwasono, Sjarief Widjaja, Achmad Zubaydi, Zaed Yuliadi, I Nyoman Budiantara
Makara Journal of Technology
Development of Technology Parameter Towards Shipbuilding Productivity Predictor Using Cubic Spline Approach. Ability of production processes associated with state-of-the-art technology, which allows the shipbuilding, is customized with modern equipment. It will give impact to level of productivity and competitiveness. This study proposes a nonparametric regression cubic spline approach with 1 knot, 2 knots, and 3 knots. The application programs Tibco Spotfire S+ showed that a cubic spline with 2 knots (4.25 and 4.50) gave the best result with the value of GCV = 56.21556, and R2 = 94.03%.Estimation result of cubic spline with 2 knots for the PT. Batamec shipyard …
Shaft Torsional Vibration Response Of Vertical Axis Ocean Current Turbine Model Due To Torque Excitation,
2010
Jurusan Teknik Permesinan Kapal, Politeknik Perkapalan Negeri Surabaya, Surabaya 60111, Indonesia
Shaft Torsional Vibration Response Of Vertical Axis Ocean Current Turbine Model Due To Torque Excitation, Adi Wirawan Husodo, I Ketut Aria Pria Utama, I Made Ariana
Makara Journal of Technology
Shaft Torsional Vibration Response of Vertical Axis Ocean Current Turbine Model Due to Torque Excitation. The current research aimed to study the torsional vibration response of Vertical Axis Ocean Current Turbine due to randomly torque excitation pattern, owing to the variety of ocean current velocity. The turbine model is composed of 3 aluminum blades of NACA 0018 connected to steel shaft. Turbine dimensions are 10 cm of chord, 1.8 cm of chamber and 100 cm of span. The variation of ocean current velocity is 0.5 m/s, 1.0 m/s, 1.5 m/s, 2.0 m/s, 2.5 m/s and 3.0 m/s. The Model has …
Personal Navigation Via High-Resolution Gait-Corrected Inertial Measurement Units,
2010
Case Western Reserve University
Personal Navigation Via High-Resolution Gait-Corrected Inertial Measurement Units, Özkan Bebek, Michael A. Suster, Srihari Rajgopal, Michael J. Fu, Xuemei Huang, M. Cenk Çavu¸So˘Glu,, Darrin J. Young, Mehran Mehregany, Antonie J. Van Den Bogert, Carlos H. Mastrangelo
Mechanical Engineering Faculty Publications
In this paper, a personal micronavigation system that uses high-resolution gait-corrected inertial measurement units is presented. The goal of this paper is to develop a navigation system that uses secondary inertial variables, such as velocity, to enable long-term precise navigation in the absence of Global Positioning System (GPS) and beacon signals. In this scheme, measured zerovelocity duration from the ground reaction sensors is used to reset the accumulated integration errors from accelerometers and gyroscopes in position calculation. With the described system, an average position error of 4 m is achieved at the end of half-hour walks.
Autonomous Underwater Vehicles As Tools For Deep-Submergence Archaeology,
2010
University of Rhode Island
Autonomous Underwater Vehicles As Tools For Deep-Submergence Archaeology, Christopher N. Roman, Ian Roderick Mather
Graduate School of Oceanography Faculty Publications
Marine archaeology beyond the capabilities of scuba divers is a technologically enabled field. The tool suite includes ship-based systems such as towed side-scan sonars and remotely operated vehicles, and more recently free-swimming autonomous underwater vehicles (AUVs). Each of these platforms has various imaging and mapping capabilities appropriate for specific scales and tasks. Broadly speaking, AUVs are becoming effective tools for locating, identifying, and surveying archaeological sites. This paper discusses the role of AUVs in this suite of tools, outlines some specific design criteria necessary to maximize their utility in the field, and presents directions for future developments. Results are presented …
Nanomanufacturing And Analysis Of Novel Integrated Continuous Nanofibers,
2010
University of Nebraska-Lincoln
Nanomanufacturing And Analysis Of Novel Integrated Continuous Nanofibers, John E. Hannappel
Department of Engineering Mechanics: Dissertations, Theses, and Student Research
Complex nanostructured materials have great potential for applications in many areas of nanotechnology. This potential is being unlocked by precise control of their nanoscale architecture and properties. Most current methods of creating these nanostructures are expensive and difficult to control, with the majority of techniques resulting in non-continuous nanostructures and nanoparticles. Electrospinning is an economic nanomanufacturing method resulting in continuous nanofibers. The method consists of spinning fiber-forming liquids in high electric fields. In this work, a modified electrospinning process was analyzed. The process utilized two concentric liquids that resulted in integrated continuous hollow or composite nanofibers. A new adjustable co-axial …
A Study Of Golf Club Head Kinematics Near Impact,
2010
California Polytechnic State University - San Luis Obispo
A Study Of Golf Club Head Kinematics Near Impact, Stephen James Murphy, David Wadsworth Lavelle, Kevin Philip Melancon
Mechanical Engineering
No abstract provided.
Modeling And Numerical Investigation Of Hot Gas Defrost On A Finned Tube Evaporator Using Computational Fluid Dynamics,
2010
California Polytechnic State University, San Luis Obispo
Modeling And Numerical Investigation Of Hot Gas Defrost On A Finned Tube Evaporator Using Computational Fluid Dynamics, Oai The Ha
Master's Theses
Defrosting in the refrigeration industry is used to remove the frost layer accumulated on the evaporators after a period of running time. It is one way to improve the energy efficiency of refrigeration systems. There are many studies about the defrosting process but none of them use computational fluid dynamics (CFD) simulation. The purpose of this thesis is (1) to develop a defrost model using the commercial CFD solver FLUENT to simulate numerically the melting of frost coupled with the heat and mass transfer taking place during defrosting, and (2) to investigate the thermal response of the evaporator and the …
Impact Investigation Of Reactor Fuel Operating Parameters On Reactivity For Use In Burnup Credit Applications,
2010
University of Nevada, Las Vegas
Impact Investigation Of Reactor Fuel Operating Parameters On Reactivity For Use In Burnup Credit Applications, Tanya N. Sloma
UNLV Theses, Dissertations, Professional Papers, and Capstones
When representing the behavior of commercial spent nuclear fuel (SNF), credit is sought for the reduced reactivity associated with the net depletion of fissile isotopes and the creation of neutron-absorbing isotopes, a process that begins when a commercial nuclear reactor is first operated at power. Burnup credit accounts for the reduced reactivity potential of a fuel assembly and varies with the fuel burnup, cooling time, and the initial enrichment of fissile material in the fuel. With regard to long-term SNF disposal and transportation, tremendous benefits, such as increased capacity, flexibility of design and system operations, and reduced overall costs, provide …
Fracture Behavior Of Cracked Full Scale Steel Pipes Used For Gas And Petroleum Industries,
2010
United Arab Emirates University
Fracture Behavior Of Cracked Full Scale Steel Pipes Used For Gas And Petroleum Industries, Jaafer Altarawneh
Theses
The fracture toughness of pipeline steel grade X65 was investigated utilizing linear elastic fracture mechanics analysis, KIC testing according to non-standards techniques, as well as the elastic-plastic fracture mechanics analysis (J-Integral and crack opening displacement COD methods). The fracture toughness tests were conducted at full scale pipe used for gas and oil industry, circumferential surface crack were introduced to nine pipe specimens with different depths, crack/notch depths were selected to cover wide range of remaining material of the original pipe thickness, the original pipe thickness remain unchanged, a special fixture was manufactured to perform the experimental works, plane strain …
Electrospinning To Forcespinning™,
2010
The University of Texas Rio Grande Valley
Electrospinning To Forcespinning™, Kamal Sarkar, Carlos Gomez, Steve Zambrano, Michael Ramirez, Eugenio De Hoyos, Horacio Vasquez, Karen Lozano
Mechanical Engineering Faculty Publications
A new process called Forcespinning™ has been developed to make nanofibers from a wide range of materials. This new method uses centrifugal force, rather than electrostatic force as in the electrospinning process. The Forcespinning™ method uses either solutions or solid materials that are solution or melt spun into nanofibers. Key parameters to control the geometry and morphology of the nanofibers include rotational speed of the spinneret, collection system and temperature. Orifices of the spinneret can have arbitrary geometric shapes to provide corresponding cross-section of nanofibers. The Forcespinning™ method has been successfully used to make nanofibers of poly-ethylene …
Bridging The Gap Between The Industrial Environment And The Classroom Via Project-Based Learning,
2010
Northern Michigan University
Bridging The Gap Between The Industrial Environment And The Classroom Via Project-Based Learning, Michael W. Martin
Presentation
Recent engineering education research has concluded that most engineering curricula do not promote attainment of many characteristics desired in practicing engineers. Methods to attain these characteristics include both project-based learning (PBL) and simulation of workplace situations in the educational environment. The presenter will outline the use of both PBL and workplace simulation through the implementation of a semester-long project in a senior-level Data Acquisition course taught out of the Department of Engineering Technology at Northern Michigan University. A typical undergraduate experimental analysis or data acquisition course will review topics including; sensoring, hardware requirements, testing techniques, computer integration, software use, and …
Building America Industrialized Housing Partnership Case Studies - 2010,
2010
Florida Solar Energy Center
Building America Industrialized Housing Partnership Case Studies - 2010, Florida Solar Energy Center, Janet Mcilvaine
FSEC Energy Research Center®
This document is a compilation of 14 separate case studies of home builders who have adopted Building America principles of high performance as standard construction. This work was compiled by the Building America Industrialized Housing Partnership (www.baihp.org ) for the U.S. Department of Energy to serve as a model for other housing providers. BAIHP is led by the Florida Solar Energy Center of the University of Central Florida.
Lunar Wormbot--A Robotic Tunneling Worm For Operation In Harsh Environments,
2010
University of Alabama in Huntsville
Lunar Wormbot--A Robotic Tunneling Worm For Operation In Harsh Environments, Josh Johnson
Von Braun Symposium Student Posters
No abstract provided.
Work In Progress - Role Of Faculty In Promoting Lifelong Learning: Initial Findings,
2010
California Polytechnic State University, San Luis Obispo
Work In Progress - Role Of Faculty In Promoting Lifelong Learning: Initial Findings, John Chen, Susan M. Lord, Katharyn Nottis, Michael Prince, Candice Stefanou, Jonathon Stolk
Mechanical Engineering
Calls for educational reform emphasize the need for student-centered learning approaches that foster lifelong learning. To be a lifelong learner includes characteristics consistent with those of self-directed learners, such as being curious, motivated, reflective, analytical, persistent, flexible, and independent. Instructor support of students’ self-directed learning (SDL) development relies on understanding and balancing these factors in the classroom. Engineering educators play a critical role in influencing outcomes related to SDL through their design of courses that support students’ transitions from controlled to autonomous learning behaviors. This study will examine a variety of engineering courses and pedagogical approaches. Each will be characterized …
Understanding The Interaction Between Blood Flow And An Applied Magnetic Field,
2010
University of South Florida
Understanding The Interaction Between Blood Flow And An Applied Magnetic Field, Francy L. Sinatra
USF Tampa Graduate Theses and Dissertations
Hemodynamic monitoring is extremely important in the accurate measurement of vital parameters. Current methods are highly invasive or noncontinuous, and require direct access to the patient’s skin. This study intends to explore the modulated magnetic signature of blood method (MMSB) to attain blood flow information. This method uses an applied magnetic field to magnetize the iron in the red blood cells and measures the disturbance to the field with a magnetic sensor [1]. Exploration will be done by experimentally studying in-vitro, as well as simulating in COMSOL the alteration of magnetic fields induced by the flow of a magnetic solution. …
Design And Fabrication Of A Membrane Integrated Microfluidic Cell Culture Device Suitable For High-Resolution Imaging,
2010
University of South Florida
Design And Fabrication Of A Membrane Integrated Microfluidic Cell Culture Device Suitable For High-Resolution Imaging, Alla A. Epshteyn
USF Tampa Graduate Theses and Dissertations
Malaria remains a serious concern for people living and traveling to warm climates in Africa, Asia, and some parts of America. Understanding the mechanism of the malaria parasite in the liver phase could lead to important discoveries for preventative and treatment therapeutics before the disease develops into the blood stage. While in vitro liver cell culture models have been explored, a device that mimics the liver cell architecture with the capability of high-resolution imaging has never been created. In this research, a cell culture microfluidic device was designed and fabricated with a membrane integrated design to mimic the architecture of …
Continuous Electrowetting Actuation Utilizing Current Rectification Properties Of Valve Metal Films,
2010
University of South Florida
Continuous Electrowetting Actuation Utilizing Current Rectification Properties Of Valve Metal Films, Corey M. Lynch
USF Tampa Graduate Theses and Dissertations
Electrowetting on dielectric (EWOD) is a technique for reducing the apparent contact angle of a fluid droplet, which has many promising applications in the fields of optics, digital displays, and lab-on-a-chip research. In this thesis, a design is presented for a novel single circuit device for achieving continuous droplet motion, by using the current-rectifying properties of valve metals to create diode-like behavior. This contrasts with existing designs, which require an array of individual electrodes to achieve motion in discrete steps. We are able to demonstrate continuous droplet motion across a 28mm-long test strip with an applied voltage of 303 V …
Individual Muscle Contributions To The Axial Knee Joint Contact Force During Normal Walking,
2010
Boise State University
Individual Muscle Contributions To The Axial Knee Joint Contact Force During Normal Walking, Kotaro Sasaki, Richard R. Neptune
Mechanical and Biomedical Engineering Faculty Publications and Presentations
Muscles are significant contributors to the high joint forces developed in the knee during human walking. Not only do muscles contribute to the knee joint forces by acting to compress the joint, but they also develop joint forces indirectly through their contributions to the ground reaction forces via dynamic coupling. Thus, muscles can have significant contributions to forces at joints they do not span. However, few studies have investigated how the major lower-limb muscles contribute to the knee joint contact forces during walking. The goal of this study was to use a muscle-actuated forward dynamics simulation of walking to identify …
Concurrent Muscoskeletal Dynamics And Finite Element Analysis Predicts Altered Gait Patterns To Reduce Foot Tissue Loading,
2010
Cleveland Clinic
Concurrent Muscoskeletal Dynamics And Finite Element Analysis Predicts Altered Gait Patterns To Reduce Foot Tissue Loading, Jason P. Halloran, Marko Ackermann, Antonie J. Van Den Bogert
Mechanical Engineering Faculty Publications
Current computational methods for simulating locomotion have primarily used muscle-driven multibody dynamics, in which neuromuscular control is optimized. Such simulations generally represent joints and soft tissue as simple kinematic or elastic elements for computational efficiency. These assumptions limit application in studies such as ligament injury or osteoarthritis, where local tissue loading must be predicted. Conversely, tissue can be simulated using the finite element method with assumed or measured boundary conditions, but this does not represent the effects of whole body dynamics and neuromuscular control. Coupling the two domains would overcome these limitations and allow prediction of movement strategies guided by …
Exploring The Human Interactivity With A Robot To Obtain The Fundamental Properties Of Materials,
2010
University of South Florida
Exploring The Human Interactivity With A Robot To Obtain The Fundamental Properties Of Materials, William L. Christian
USF Tampa Graduate Theses and Dissertations
This research studies the way in which humans and robots interact with each other. When two humans are working together through a set of robotic devices, do they tend to work together or fight with each other more? In which Cartesian direction do they have the most difficulty? Does fighting drastically affect the performance of the team? Finally, what measures can be taken to promote better cooperation between humans and robots to ultimately allow humans to work just as comfortably with a robotic partner as with a human partner? This research answers these questions and provides an analysis of human-robot …
