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Full-Text Articles in Engineering

A Review Of Baobab (Adansonia Digitata) Products: Effect Of Processing Techniques, Medicinal Properties And Uses, Donatien Kabore, Hagrétou Sawadogo-Lingani, Bréhima Diawara, Clarise Compaoré, Mamoudou H. Dicko Prof., Mogens Jacobsen Dec 2011

A Review Of Baobab (Adansonia Digitata) Products: Effect Of Processing Techniques, Medicinal Properties And Uses, Donatien Kabore, Hagrétou Sawadogo-Lingani, Bréhima Diawara, Clarise Compaoré, Mamoudou H. Dicko Prof., Mogens Jacobsen

Pr. Mamoudou H. DICKO, PhD

A general literature review including the effect of processing techniques, medicinal value and uses of baobab tree is reported in this manuscript. Baobab tree has multi-purpose uses, as it produces food and non-food products such as medicines, fuel, timber, fodder. Every part of the baobab tree is reported to be useful. The seeds, leaves, roots, flowers, fruit pulp and bark of baobab are edible. Baobab leaves are used in the preparation of soup. Seeds are used as a thickening agent in soups, but they can be fermented and used as a flavouring agent or roasted and eaten as snacks. The ...


Thai Students' Attitudes And Concepts Of Technology, Kurt Henry Becker, Somchai Maunsaiyat Dec 2011

Thai Students' Attitudes And Concepts Of Technology, Kurt Henry Becker, Somchai Maunsaiyat

Kurt Becker

Of the eight major programs mentioned in Thailand's Eighth National Education Development Plan (1997-2001), one is aimed at developing human capability in the areas of science and technology. This is to address the fact that the teaching of technology in Thailand is lagging behind the technological changes of the last decade. Part of this reform effort is the development of conceptual based learning activities in science and technology for 12 to 15-year old students. These concepts are being introduced through the offering of a subject at the high school level. de Klerk Wolters (1989) indicated learning the concepts of ...


Toward A Technology Management Core: Defining What The Technology Manager Needs To Know, Mark Doggett, Pam Mcgee, Sophia Scott Nov 2011

Toward A Technology Management Core: Defining What The Technology Manager Needs To Know, Mark Doggett, Pam Mcgee, Sophia Scott

Mark Doggett

No abstract provided.


Graduate Faculty Workloads: Recognizing Scholarship And Student Engagement At The Comprehensive Institution, Mark Doggett Nov 2011

Graduate Faculty Workloads: Recognizing Scholarship And Student Engagement At The Comprehensive Institution, Mark Doggett

Mark Doggett

No abstract provided.


Risk-Based Critical Infrastructure Priorities For Emp And Solar Storms, George H. Baker Iii Oct 2011

Risk-Based Critical Infrastructure Priorities For Emp And Solar Storms, George H. Baker Iii

George H Baker

Two electromagnetic phenomena have the potential to create continental-scale disasters. The first, nuclear electromagnetic pulse (EMP), results from a nuclear detonation high above the tropopause. The second, a major solar storm, or "solar tsunami" occurs naturally when an intense wave of charged particles from the sun perturbs the earth's magnetic field. Both phenomena can debilitate electrical and electronic systems necessary for the operation of infrastructure systems and services. One reason why a U.S. protection program has yet to be initiated is that policy makers continue to wrestle with the question of where to begin, given the Department of ...


Rethinking Advising: Developing A Proactive Culture To Improve Retention, Amber Settle, John Glatz Oct 2011

Rethinking Advising: Developing A Proactive Culture To Improve Retention, Amber Settle, John Glatz

Amber Settle

In 2009 DePaul University’s College of Computing and Digital Media (DePaul CDM) discovered a significant lag in undergraduate retention rates as well as four, five and six-year graduation rates as compared to other major colleges at the university. DePaul CDM’s investment in online student service resources had over time caused the unintentional reinvention of the college advising office into one that supported a very limited number of students, focusing primarily on students either in academic distress or students nearing graduation. 
In an effort to modify the advising culture at DePaul CDM into a more proactive one, a strategic ...


Engaging Game Design Students Using Peer Evaluation, Amber Settle, Charles Wilcox, Chad Settle Oct 2011

Engaging Game Design Students Using Peer Evaluation, Amber Settle, Charles Wilcox, Chad Settle

Amber Settle

Many information technology educators have worked in recent years to develop courses to attract students to the field. As faculty achieve success with technical courses designed to be appeal to a broad audience, it can be hard to maintain the initial excitement particularly as multiple sections of the courses are taught on a continuing basis. In this article we describe a project that added peer evaluation to an assessment in a game design course with a large non-major audience. While controversial, peer evaluation has shown some promise in motivating students to work harder and in improving certain key skills. Consistent ...


Risk-Based Critical Infrastructure Protection Priorities For Emp And Solar Storms, George H. Baker Iii Sep 2011

Risk-Based Critical Infrastructure Protection Priorities For Emp And Solar Storms, George H. Baker Iii

George H Baker

The Commission to Assess the Threat to the United States from Electromagnetic Pulse Attack has provided a compelling case for protecting civilian infrastructure against the effects of EMP. As with protecting infrastructure against any hazard, it will be important to take a risk-based priority approach for EMP, recognizing that it is fiscally impracticable to protect everything. In this regard, EMP is particularly challenging in that it interferes with electrical and electronic data, control, transmission, and communication systems organic to nearly all infrastructures in a simultaneous and wide-scale manner. And, for nuclear burst altitudes of 100s of kilometers, the exposed geography ...


Emp: A Brief Tutorial, George H. Baker Iii Jul 2011

Emp: A Brief Tutorial, George H. Baker Iii

George H Baker

A nuclear detonation at altitudes from about 30 to 500 kilometers generates a strong electromagnetic pulse (EMP) that propagates to points on the ground within the line-of-sight of the burst. For bursts above 100 kilometers, electronics can be affected over continental scale areas. The EMP induces large voltages and currents in antennas and cables of electronic systems that will upset operation or damage circuit components if protection measures are not present. The article provides a brief tutorial on EMP environments, effects and protection.


High Power Electromagnetic Weapons: A Brief Tutorial, George H. Baker Iii Jul 2011

High Power Electromagnetic Weapons: A Brief Tutorial, George H. Baker Iii

George H Baker

High power electromagnetic weapons, also referred to as high power radiofrequency (HPRF) weapons, are a type of directed energy weapons. The system effects of high power electromagnetic environments are well recognized by world scientific and military communities. Former CIA Director John Deutch has said that, "the electron is the ultimate precision-guided weapon." In the course of the investigation ofnuclear EMP effects on electronics during the Cold War period, it became evident that garden variety, unprotected electronics would malfunction, in some cases burn out, in the presence of electromagnetic fields in the hundreds to thousands of volts per meter. The EMP ...


Ict And The Education Sector In Tanzania: Effectiveness Of Introducing And Applying Ict In Higher Learning Institutions In Tanzania: The Case Of Ardhi University, Kristofa S. Nkembo, Daniel Koloseni, Faith J. Shimba Jul 2011

Ict And The Education Sector In Tanzania: Effectiveness Of Introducing And Applying Ict In Higher Learning Institutions In Tanzania: The Case Of Ardhi University, Kristofa S. Nkembo, Daniel Koloseni, Faith J. Shimba

Faith Joel Shimba

Academic Institutions are heavily investing in ICT in order to improve delivery and quality of education. But the process of introducing and applying ICT in Higher learning institutions is not effective to enable higher learning Institutions to reap fully the benefits offered by ICT. This book describes a number of factors that hindered the introduction and application of ICT at Ardhi University, which are limited ICT infrastructure, inadequate ICT personnel, inadequate training provided to staff, limited support services, inadequate financial resources,and insufficient budget for ICT infrastructure. Further it recommends among other things, improvement of ICT infrastructure, increasing the number ...


Embedding Lifelong Learning Skills Into A First-Year Engineering Course Through Introduction Of An Independent Research Project And Information Literacy Skills, Chris Plouff, Debbie Morrow Jul 2011

Embedding Lifelong Learning Skills Into A First-Year Engineering Course Through Introduction Of An Independent Research Project And Information Literacy Skills, Chris Plouff, Debbie Morrow

Chris Plouff

This paper reports on a work in progress to address ABET program outcome ‘i’ (“graduates have a recognition of the need for, and an ability to engage in, lifelong learning”) in the Bachelor of Science in Engineering programs (mid-size, undergraduate engineering program) at a large Master’s-granting university in the mid-western United States. One performance criterion used by the programs to assess program outcome ‘i’ is the ability to find, evaluate, and effectively use information independently. This concept is introduced in the first-year of the programs, and is reinforced in an intentional thread throughout the curriculum, culminating with the senior ...


Vuv Absorption Cross Section Of Benzene, Relevance For Titan’S Atmosphere, F-J. Capalbo, Y. Bénilan, N. Fray, M. Schwell, Et. Es-Sebbar, N. Champion, T. Koskinen, R. Yelle Jul 2011

Vuv Absorption Cross Section Of Benzene, Relevance For Titan’S Atmosphere, F-J. Capalbo, Y. Bénilan, N. Fray, M. Schwell, Et. Es-Sebbar, N. Champion, T. Koskinen, R. Yelle

Dr. Et-touhami Es-sebbar

Saturn's largest satellite, Titan, is the only one in the Solar System known to have a thick N2/CH4, planet like atmosphere. The dissociation of these principal components and the recombination of the products make this atmosphere to be rich in organic compounds of high interest for astrobiology. Solar and stellar occultations observed by the Ultraviolet Imaging Spectrograph (UVIS) on board the Cassini spacecraft can be used to characterize the composition of Titan’s upper atmosphere (400 – 1400 km). The results depend strongly on the knowledge of the molecular absorption cross sections of the atmospheric constituents (Ferradaz et al ...


Addressing Abet Program Outcome 'I': #11;A First-Year Engineering Program And Library Instruction Initiative Collaboration, Debbie Morrow May 2011

Addressing Abet Program Outcome 'I': #11;A First-Year Engineering Program And Library Instruction Initiative Collaboration, Debbie Morrow

Debbie Morrow

Grand Valley's School of Engineering recently invited the University Libraries to collaborate in an effort to address ABET outcome ‘i’, engaging in lifelong learning, in one of their first year core courses. The Libraries have recently developed an "Information Literacy Core Competencies" document, evolving out of the ACRL IL competencies standard adopted in 2000. Our collaboration has so far been a great exercise in exploring the effective intersection of ABET ‘i’ and information literacy competencies, in the context of incorporation into an existing course in GVSU's first-year engineering curriculum.


Antimicrobial And Antioxidant Activities Of Essential Oil And Methanol Extract Of Matricaria Chamomilla L. From Djibouti, Fatouma M. Abdoul-Latif, Mohamed Nabil, Prosper Edou, Adwa A. Ali, Samatar O. Djama, Louis-Clément Obamé, Mamoudou H. Dicko Prof. May 2011

Antimicrobial And Antioxidant Activities Of Essential Oil And Methanol Extract Of Matricaria Chamomilla L. From Djibouti, Fatouma M. Abdoul-Latif, Mohamed Nabil, Prosper Edou, Adwa A. Ali, Samatar O. Djama, Louis-Clément Obamé, Mamoudou H. Dicko Prof.

Pr. Mamoudou H. DICKO, PhD

The essential oil and methanol extracts of Matricaria Chamomilla L. were subjected to screening for their possible antioxidant activity by two complementary test systems, namely 2,2-diphenykpicrylhydrazyl (DPPH) free radical scavenging and β-carotene-linoleic acid assays. BHT was used as positive control in both test systems. In the DPPH test system, the IC50 values of essential oil and methanol extracts were 4.18 and 1.83 μg/ml, respectively. In the β-carotene-linoleic acid system, oxidation was effectively inhibited by M. Chamomilla, the RAA value of essential oil and methanol extracts were 12.69 and 11.37 %, respectively. When compared to BHT ...


Is Your Online Training Accessible?, Linda Huglin, Shannon Rist, Bob Casper Apr 2011

Is Your Online Training Accessible?, Linda Huglin, Shannon Rist, Bob Casper

Linda Huglin

The number of workers with disabilities is expected to increase substantially within the next few years, particularly with the return of veterans wounded in combat. The increase in training programs that are delivered online requires that accessibility features be put in place to accommodate this group of workers. The purpose of this interactive session is to demonstrate techniques that enhance accessibility of online training materials via a "makeover" of an existing online course.


Surviving Troubled Times: Five Strategies For Training Professionals, Steven Villachica, Donald Stepich Apr 2011

Surviving Troubled Times: Five Strategies For Training Professionals, Steven Villachica, Donald Stepich

Steven W. Villachica

The current economic downturn is an opportunity for human performance technologists to focus on improving the value they provide to their organizations. Whether you're a novice or a seasoned practitioner, this fun, fast-paced, and interactive workshop will show you how to align performance improvement efforts with business goals, use training programs to address skill gaps, craft instructional objectives that describe exemplary job performance, create sound training programs that promote learning and transfer, and collaborate with others to promote transfer in ways that improve performance. Participants will leave with a set of job aids to help implement these strategies in ...


Characterization Of Continuous Vacuum Ultraviolet Lamps-Implication On The Study Of Methane Photolysis At Lyman Alpha (121.6 Nm), M-C. Gazeau, Y. Benilan, Et. Es-Sebbar, A. Jolly, E. Arzoumanian, N. Fray, H. Cottin Apr 2011

Characterization Of Continuous Vacuum Ultraviolet Lamps-Implication On The Study Of Methane Photolysis At Lyman Alpha (121.6 Nm), M-C. Gazeau, Y. Benilan, Et. Es-Sebbar, A. Jolly, E. Arzoumanian, N. Fray, H. Cottin

Dr. Et-touhami Es-sebbar

Low-temperature hydrogen plasmas are widely used as continuous vacuum ultraviolet irradiation sources in photochemical studies and, in particular, in laboratory simulations of planetary atmospheres. One of the most challenging objectives of such experiments is to retrieve accurate quantitative laboratory data allowing a reliable comparison with theoretical and/or observational ones. This task can only be achieved when the irradiation source delivers a well characterised radiation in terms of flux and wavelength dependency. As an example, we will present a study, developed in the frame of a program dedicated to simulations of Titan’s atmosphere, on methane photolysis at Lyman alpha ...


Formation Of Hcn And Nh3 As Primary Compounds Of Titan’S Atmosphere Simulations Using N2-Ch4 Afterglow Plasma’’, M-C. Gazeau, Y. Bénilan, E. Arzoumanian, Et. Es-Sebbar, A. Jolly, C.D. Pintassilgo Apr 2011

Formation Of Hcn And Nh3 As Primary Compounds Of Titan’S Atmosphere Simulations Using N2-Ch4 Afterglow Plasma’’, M-C. Gazeau, Y. Bénilan, E. Arzoumanian, Et. Es-Sebbar, A. Jolly, C.D. Pintassilgo

Dr. Et-touhami Es-sebbar

No abstract provided.


Biodepollution Of Wastewater Containing Phenolic Compounds From Leather Industry By Plant Peroxidases, Mamounata Diao, Nafissetou Ouedraogo, Lamine Baba-Moussa, Paul W. Savadogo, Georges N'Guessan Amani, Mamoudou H. Dicko Prof. Jan 2011

Biodepollution Of Wastewater Containing Phenolic Compounds From Leather Industry By Plant Peroxidases, Mamounata Diao, Nafissetou Ouedraogo, Lamine Baba-Moussa, Paul W. Savadogo, Georges N'Guessan Amani, Mamoudou H. Dicko Prof.

Pr. Mamoudou H. DICKO, PhD

This study deals with the use of peroxidases (POXs) from Allium sativum, Ipomoea batatas, Raphanus sativus and Sorghum bicolor to catalyze the degradation of free phenolic compounds as well as phenolic compounds contained in wastewater from leather industry. Secretory plant POXs were able to catalyze the oxidation of gallic acid, ferulic acid, 4-hydroxybenzoic acid, pyrogallol and 1,4-tyrosol prepared in ethanol 2% (v:v). Efficiency of peroxidase catalysis depends strongly on the chemical nature of phenolic substrates and on the botanical source of the enzymes. It appeared that POX from Raphanus sativus had the highest efficiency. Results show that POXs ...


Spatial Distribution Of Commercial Banks In Ilorin Metropolis, Kwara State, Nigeria, I B. Abdullahi, M A. Ijaiya, A Abdulraheem, R I. Abdulkadir, R O. Ibrahim Jan 2011

Spatial Distribution Of Commercial Banks In Ilorin Metropolis, Kwara State, Nigeria, I B. Abdullahi, M A. Ijaiya, A Abdulraheem, R I. Abdulkadir, R O. Ibrahim

Confluence Journal of Environmental Studies (CJES), Kogi State University, Nigeria

The spatial distribution of banks in any geographic entity determines the level of accessibility to its services by the public. This study examined the pattern of banks distribution in Ilorin metropolis. Field survey was employed in determining the number of available commercial banks and their respective distances between each other. The spatial analysis technique such as the nearest neighbour analysis as used ascertain the degree of clustering, density and the average distance taken to access these services. The study revealed that about 96% of the total number of banks are situated in the Central Business District which exhibited a very ...


Detecting Learning Moment-By-Moment, Ryan Baker, Adam Goldstein, Neil Heffernan Dec 2010

Detecting Learning Moment-By-Moment, Ryan Baker, Adam Goldstein, Neil Heffernan

Ryan S.J.d. Baker

Intelligent tutors have become increasingly accurate at detecting whether a student knows a skill, or knowledge component (KC), at a given time. However, current student models do not tell us exactly at which point a KC is learned. In this paper, we present a machine-learned model that assesses the probability that a student learned a KC at a specific problem step (instead of at the next or previous problem step). We use this model to analyze which KCs are learned gradually, and which are learned in “eureka” moments. We also discuss potential ways that this model could be used to ...


Comparing Learners' Affect While Using An Intelligent Tutor And An Educational Game, Ryan Baker, Ma.Mercedes Rodrigo Dec 2010

Comparing Learners' Affect While Using An Intelligent Tutor And An Educational Game, Ryan Baker, Ma.Mercedes Rodrigo

Ryan S.J.d. Baker

We compare the affect associated with students learning from an intelligent tutoring system, Aplusix, and a game, Math Blaster 9-12, covering very similar mathematical content. Quantitative field observations of student affect were conducted in classrooms in private schools in the Philippines. Students experienced large amounts of positive affect in both environments. It has been hypothesized that educational games will lead to better affect than other forms of educational software, but it was found that students experienced more positive affect (specifically, engaged concentration) and less negative affect (specifically, boredom) in the intelligent tutor than in the game, though there was a ...


Lib 3010 Spring 2011: Students Choose An Image To Represent Patent Searching, Jan Comfort Dec 2010

Lib 3010 Spring 2011: Students Choose An Image To Represent Patent Searching, Jan Comfort

Jan Comfort

Students enrolled in LIB 3010 (a one hour credit-bearing class on patent searching) were asked to supply an image and write a few sentences describing how it represented their experience.


1d Nanomaterials 2011, Steve Acquah Dec 2010

1d Nanomaterials 2011, Steve Acquah

Steve Acquah

Following the first report on the concentric nature of carbon nanotube (CNTs) in 1991, an era of global nanomaterials research quickly emerged. Over decades of effort, significant progresses have been made by scientists of diverse disciplines from different prospects, which contribute to and become the foundation of the current Nanoscience and Nanotechnology revolution, alongside other three ground breaking inventions of steam engine, electricity, and possibly the internet in our history. It is fair to say that new nanomaterials with unique and fundamentally superior properties, against their conventional bulk forms, naturally become the core element for this revolution. Amongst the seemingly ...


Challenges Associated With Ict Asset Disposal In Tanzania, Faith J. Shimba, Daniel Koloseni Dec 2010

Challenges Associated With Ict Asset Disposal In Tanzania, Faith J. Shimba, Daniel Koloseni

Faith Joel Shimba

Government and non–Government institutions are heavily investing in Information and Communication Technologies (ICT) to enhance their businesses and operational activities. This trend has partially been inspired by the lift of computer ban in 1980s where millions of ICT assets had been imported. Subsequently, there is a rapid increase of Internet Service Providers (ISPs), Mobile Service Providers (MSP), and ICT asset vendors’ country-wide. This implies a massive increase in imported ICT assets as well as the number of ICT assets that are going out of the ICT asset life cycle. In order to study challenges facing Tanzania in disposing end ...


Computing Without Borders? Adapting An Irish Programme For The Tanzanian Ict Market, Faraja Igira, Herman Mandari, Bosi Masamila, Salehe Mwachaka, Zanifa Omar, Jafari Said, Faith J. Shimba, Rose Tinabo, June Barret, Damian Gordon, Paul Kelly, Fredick Mtenzi, Oliver O'Connor, Patricia O'Byrne, Ciaran O'Leary Dec 2010

Computing Without Borders? Adapting An Irish Programme For The Tanzanian Ict Market, Faraja Igira, Herman Mandari, Bosi Masamila, Salehe Mwachaka, Zanifa Omar, Jafari Said, Faith J. Shimba, Rose Tinabo, June Barret, Damian Gordon, Paul Kelly, Fredick Mtenzi, Oliver O'Connor, Patricia O'Byrne, Ciaran O'Leary

Faith Joel Shimba

A Tanzanian higher education institution (Institute of Finance Management) and an Irish higher education institutio (Dublin Institute of Technology) have worked in partnership to develop the final stage of a Computer Science programme to meet the specific needs of the Tanzanian Information and Communication Technology (ICT) sector. The designed stage sits above three stages of a programme designed for the Irish ICT sector which was transplanted to the Tanzanian context. The final stage is crucial as it represents the final bridge between the employment market and the programme, which is informed by the best practice, needs and requirements of both ...