Engineering Commons^™

High-Resolution Mapping In Manus Basin, C. Roman, V. Ferrini

Christopher N. Roman

Near-bottom seafloor mapping with precisely navigated deep submergence vehicles has become increasingly common in a range of oceanographic settings. Recent mapping efforts at deep-water hydrothermal vent sites have resulted in high-resolution (sub-meter) bathymetry datasets that can be used to identify morphological features associated with volcanic, tectonic, and hydrothermal processes. The resolution of these maps, and our ability to accurately quantify the complex morphologic details of hydrothermal structures has been limited by a number of variables including navigational accuracy, sonar settings (e.g. acoustic wavelength, sonar orientation, ping rate), survey parameters (e.g. altitude, speed), data density, and data processing techniques (e.g. gridding …

Chapter 7: The Evaluation Of Ontologies, Leo Obrst, Benjamin Ashpole, Werner Ceusters, Inderjeet Mani, Steven Ray, Barry Smith

Steven R Ray

Recent years have seen rapid progress in the development of ontologies as semantic models intended to capture and represent aspects of the real world. There is, however, great variation in the quality of ontologies. If ontologies are to become progressively better in the future, more rigorously developed, and more appropriately compared, then a systematic discipline of ontology evaluation must be created to ensure quality of content and methodology. Systematic methods for ontology evaluation will take into account representation of individual ontologies, performance and accuracy on tasks for which the ontology is designed and used, degree of alignment with other ontologies …

A Generalized Neuron Based Adaptive Power System Stabilizer For Multimachine Environment, D. K. Chaturvedi, O. P. Malik

D. K. Chaturvedi Dr.

Artificial neural networks trained as intelligent controllers can easily accommodate the non-linearities and time dependencies of non-linear, dynamic systems. However, they require large training time and large number of neurons to deal with complex problems. Taking benefit of the characteristics of a generalized neuron (GN), that requires much smaller training data and shorter training time, a generalized neuron based adaptive power system stabilizer (GNAPSS) is proposed. It consists of a GN as an predictor, that predicts the plant dynamics, and a GN as a controller to damp low frequency oscillations. Results show that the proposed GNAPSS can provide a consistently …

The Toxicological Impacts Of Selected Ionic Liquids On Industrial Wastewater Treatment Bacteria, Samuel Morton, M. Azimova

Samuel A Morton

No abstract provided.

Porous Fiber Formation In A Polymer-Solvent System Undergoing Solvent Evaporation, Thein Kyu

Thein Kyu

Temporal evolution of the fiber morphology during dry spinning has been investigated in the framework of Cahn-Hilliard equation [J. Chem. Phys.28, 258 (1958)] pertaining to the concentration order parameter or volume fraction given by the Flory-Huggins free energy of mixing [P. J. Flory, Principles of Polymer Chemistry (Cornell University Press, Ithaca, NY, 1953), p. 672] in conjunction with the solventevaporation rate. To guide the solventevaporation induced phase separation, equilibrium phase diagram of the starting polymer solution was established on the basis of the Flory-Huggins free energy of mixing. The quasi-steady-state approximation has been adopted to account for the nonconserved nature …

Macromolecular Chemistry And Physics , Yu Zhu

Yu Zhu

No abstract provided.

Plastic Electronics, Xiong Gong

Xiong Gong

No abstract provided.

Macromolecules , Yu Zhu

Yu Zhu

No abstract provided.

Approches Orientées Services Web De L'Ihm De Supervision : Nouvelles Solutions Technologiques Pour Les Ingénieurs Et Nouvelles Problématiques Pour Les Ergonomes ?, Djilali Idoughi, Christophe Kolski

Professor Djilali IDOUGHI

RESUME Dans cet article, nous considérons l’IHM de supervision dans un contexte technologique nouveau et en constante évolution, lequel est caractérisé par des aspects impor-tants comme la mobilité et la coopération entre acteurs d’une part, et l’inter connectivité, l’interopérabilité et l’hétérogénéité des systèmes industriels utilisés d’autre part. De nouvelles solutions technologiques « attrayan-tes » pour les ingénieurs devraient conduire à de nouvel-les problématiques pour les ergonomes.

Heavy Duty Fleet And Transportation In Iran The Past, The Present Condition, The Future Perspectives And Its Interaction With Economy, Nader Ale Ebrahim, Arash Golnam

Nader Ale Ebrahim

Since the ancient times Iran has always played a significant role in the Transportation Industry due to its strategic position in the silk road that connected Asia to Europe and Middle East to .Ancient Iranians are believed to be the pioneers of land transportation in the world and transportation has always been considered as one of the most ancient and historical Industries in Iran . Nowadays in the third millennium Transportation Industry experts believe that Iran is once more located in a strategic and geopolitical position in the world in which , according to the economic analyses, the Transportation Industry …

Emisja Zanieczyszczeń Powietrza Z Procesu Grafityzacji Wyrobów Drobnych, Marian Mazur, Robert Oleniacz, Marek Bogacki, Przemysław Szczygłowski

Robert Oleniacz

The paper presents the research results of the air pollutant emissions from the graphitising process of fine carbon products in the Acheson furnace (discharge capacity 5,5 Mg). Research was performed for two kinds of raw material inputs (based on petroleum coke and pitch coke). Approximately 40-hours measurement series were carried out for each material including mainly such substances like carbon monoxide, hydrocarbons, nitrogen oxides, sulphur dioxide, hydrogen sulphide, carbon disulphide, ammonia, benzene, toluene, xylenes, total dust, tar substances and polycyclic aromatic hydrocarbons. Both average and maximum concentrations and mass streams in the flue gases and average emission factors were presented …

Tribo-Surface Characteristics Of Al-B4c And Al-Sic Composites Worn Under Different Contact Pressures

A.S. Md Abdul Haseeb

Tribo-surface characteristics of two aluminium metal matrix composites (Al-MMC) of compositions Al-13 vol%B4C and Al-13 vol%SiC sliding against a commercial phenolic brake pad have been investigated under dry conditions. The wear tests were carried out using a pin-on-disc type apparatus at a linear speed of 1.62 m s-1 under contact pressures ranging from 0.75 to 3.00 MPa. The coefficient of friction was recorded on line. Wear rates were calculated from mass loss measurements. Scanning electron microscope equipped with energy dispersive X-ray spectroscopy was used to examine the tribo-surface. It is found that wear rate of both composites increases with increasing …

A Longitudinal Evaluation Of Electromagnetic Theory Students’ Continuous Improvement In Learning Skills, Rozeha A Rashid, Mazlina Esa, Mohd Saidfudin Masodi, Razimah Abdullah

Razimah Abdullah

Performance Of Continual Quality Improvement For Learning Process In A Microwave Engineering Based Core Subject, Mazlina Esa, Rozeha A Rashid, Mohd Saidfudin Masodi, Razimah Abdullah

Razimah Abdullah

Inventions On Ldap Data Storage- A Study Based On Us Patents, Umakant Mishra

Umakant Mishra

Lightweight Directory Access Protocol (LDAP) is an IETF open standard to provide directory services in the network. LDAP was initially developed at the University of Michigan with an objective to include most of the features of X.500 directory structure, while eliminating the burdens and difficulties of the same.

As LDAP does not provide any specification on the data storage, different venders can implement different mechanism for data storage as found suitable to the specific vender or environment. Although underlying data storage system between different LDAP servers can differ, this disparity does not affect the functionality or interaction of LDAP clients. …

A Short History Of Mineral Processing, Fathi Habashi

Fathi Habashi

Precision And Accuracy Of Thermal Calibration Of Atomic Force Microscopy Cantilevers, Nancy Burnham, G Matei, E Thoreson, J Pratt, D Newell

Nancy A. Burnham

To have confidence in force measurements made with atomic force microscopes(AFMs), the spring constant of the AFM cantilevers should be known with good precision and accuracy, a topic not yet thoroughly treated in the literature. In this study, we compared the stiffnesses of uncoated tipless uniform rectangular silicon cantilevers among thermal, loading, and geometric calibration methods; loading was done against an artifact from the National Institute of Standards and Technology (NIST). The artifact was calibrated at NIST using forces that were traceable to the International System of units. The precision and accuracy of the thermal method were found to be …

The Geometry Of The Forisome–Sieve Element–Sieve Plate Complex In The Phloem Of Vicia Faba L. Leaflets, Winfried Peters, Aart Van Bel, Michael Knoblauch

Winfried S. Peters

Inventions On Ldap Security- A Triz Based Analysis, Umakant Mishra

Umakant Mishra

The specifications of LDAP v.3 provide facilities for simple authentication using a cleartext password as well as any SASL mechanism.SASL allows for integrity and privacy services to be negotiated (RFC 2251, www.ietf.org/rfc/rfc2251.txt). Use of cleartext password is strongly discouraged where the underlying transport service cannot guarantee confidentiality and may result in disclosure of the password to unauthorized parties. The protocol allows other security mechanisms like SASL to be implemented in LDAP. The protocol also permits that the server can return its credentials to the client, if it chooses to do so. This article is a TRIZ based study on patents …

Comparing Linkages Of Real Estate And Construction By The Consideration Of The Impact Of Capital, Yu Song, Chunlu Liu, Craig Langston

Craig Langston

Based on the recently published Organisation for Economic Co-operation and Development (OECD) input-output database at constant prices, this research proposes a new model to compare the linkages of the construction and real estate sectors in national economies with the consideration of the impact of capital. Empirical results indicate that the linkages are extremely underestimated in previous research. The backward and forward linkages of the real estate sector are smaller than those of the construction sector, which means in economic development, construction plays a more important role than real estate, given the impact of capital. More importantly, the findings prove that …

Analysis Of Opportunities And Challenges For R&D Management And The Role Of The R&D Society For Its Improvement – A Case Study In Iran, Reza R. Tavakkoli-Moghaddam, Nader Ale Ebrahim, Arash Golnam, M. Vasei, Ali Ghazizadeh-Moghaddam

Nader Ale Ebrahim

Research and Development (R&D) management in Iran is faced to many barriers and obstacles, in which R&D units are considered as the basic core of the product development and innovation. Due to structural shortcomings, a great number of organizations and industries have not been able to find their actual status. There are about different 1141 R&D units with a dispersion pattern in Iran. This paper considers and analyzes the R&D case study in one of the provinces located in the north part of Iran in order to enhance the potential R&D activities in respect with the industrialized areas and zones. …

The Ibm Rational Unified Process For Cots Package Delivery Roadmap, Cécile Péraire, Russell Pannone

Cécile Péraire

No abstract provided.

Forisome Based Biomimetic Smart Materials, Amy Shen, Benjamin Hamlington, Michael Knoblauch, Winfried Peters, William Pickard

Winfried S. Peters

Inventions On Ldap- A Study Based On Us Patents, Umakant Mishra

Umakant Mishra

Lightweight Directory Access Protocol (LDAP) is an IETF open standard to provide directory services in the network. LDAP is based on X.500 directory architecture, intended to provide directory services in Internet compatible environments. LDAP is used to provide directory services to applications ranging from e-mail systems to distributed system management tools. LDAP is becoming more and more popular with its wider usage in the Internet.

This report on LDAP is based on a study of 60 selected patents on LDAP from US patent database. The objective of this article is to present the distribution of patents according to different features …

Fabrication Of Pdms (Polydimethylsiloxane) Microlens And Diffuser Using Replica Molding, Fang-Tzu Chuang

Fang-Tzu Chuang

This paper reports the fabrication method of PDMS (polydimethylsiloxane) microlens array based on the replica molding process, casting a liquid PDMS into concave microlens molds. Concave microlens molds were fabricated through spin-coating processes suspended a liquid PMMA film on the micro-drilled hole, leading to the formation of the special curvature. Then, PDMS microlens arrays and diffusers were fabricated by replica molding and discussed in this study. The fabricated microlenses have both good surface roughness and high-quality optical properties. Therefore, diffusers were fabricated by two-step replica molding. A high-intensity He–Ne laser beam was uniformly spread through diffusers. Experimental tests demonstrated that …

Knowledge Management In Iran, Nader Ale Ebrahim, Ali Ghazizadeh, Arash Golnam

Nader Ale Ebrahim

In the highly competitive global market, only organizations survive in which, knowledge has replaced labor and natural resources as the key source of sustainable growth and development. The organizations that have learnt doing things differently and doing different things. In such organizations knowledge and learning are widely considered as sustainable sources of competitive advantage. In this paper first we take a look at the history and the pioneers of knowledge management in Iran analyzing the evolutionary trend of knowledge management and its current condition in Iran. Then we trace the emphasis put on knowledge management in the fourth economic, social …

Toxicity Of Selected Room-Temperature Ionic Liquids To Industrial Wastewater Treatment Bacteria, M. Azimova, Samuel Morton

Samuel A Morton

No abstract provided.

Pomiary Wielkości Cząstek W Powietrzu W Czasie Rzeczywistym, Marek Bogacki, Robert Oleniacz, Marian Mazur, Stanisław Kamiński

Robert Oleniacz

The paper presents the new method for measurements of air particulate size distribution in real time using Kamika Infrared Particulate Sizer type P (IPS-P) with isokinetic air sampler. The device makes it possible to classify (sort) air particulates according to size into 256 granularity classes from about 0.4 µm up to 300 µm. Tests of the IPS-P prototype were conducted in Warsaw at the turn of 2005/2006 and some measurement results were presented in the work.

English title: Measurements of the particulate size distribution in the air in real-time.

Pre-Disaster Planning And Mitigation And Its Impact On Comprehensive Emergency Management And The Nation: Pre-Disaster Mitigation (Pdm) Program And The Population Protected, Thomas Lyons Carr Iii

Thomas Lyons (Thom) Carr III Appl.Sc., CEM

A Project for a Professional Degree submitted to The Faculty of School of Engineering and Applied Science of The George Washington University in partial fulfillment of the requirements for the degree of Applied Scientist of Engineering Management May 21, 2006

On October 10, 2000, The Disaster Mitigation Act of 2000 (DMA 2000 or DMA 2K) (Public Law 106-390) was enacted, amending the Robert T. Stafford Relief and Emergency Assistance Act and established new requirements for the national for hazard mitigation planning. States, Tribes, territories, and local governments now must have an approved mitigation plan in place prior to receiving certain …

Prospects And Possibilities For Ontology Evaluation: The View From Ncor, Leo Obrst, Todd Hughes, Steven Ray

Steven R Ray

In this position paper, we briefly describe the perspective of the US National Center for Ontological Research (NCOR, http://ncor.us) on ontology evaluation. NCOR’s inauguration was recently held (October 2005), and at that time goals were identified and committees formed to pursue those goals, including the Ontology Evaluation Committee. This committee is charged with developing a plan for the evaluation of ontologies that is designed to transform ontological engineering into a true scientific and engineering discipline. This paper discusses some issues on ontology evaluation, including the relevant questions to ask, and suggests some approaches.