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Improving Learning By Connecting Chemistry Curriculum To Students' Experiences , Nicole N. Olszowy

Dissertations, Master's Theses and Master's Reports - Open

The purpose of the study was to design, implement, and assess the effects of a teaching unit about fuel sources and chemical energy on students’ learning. The unit was designed to incorporate students’ experiences in a way that was aligned with the Michigan High School Content Expectations.

The study was completed with all of the students taking General Chemistry in a rural Michigan high school in the 2010-11 school year. There were 138 participants total. The participants were mostly Caucasian and the majority were in the 11th grade. Of these, 77 constituted the experimental group and were taught the unit. …

Is Virtuality Close Enough To Reality? A Comparison Of The Effectiveness Of Simulations With Traditional Laboratory Activities In A High School Biology Class , Wendelien K. Benya

Dissertations, Master's Theses and Master's Reports - Open

Some schools do not have ideal access to laboratory space and supplies. Computer simulations of laboratory activities can be a cost-effective way of presenting experiences to students, but are those simulations as effective at supplementing content concepts? This study compared the use of traditional lab activities illustrating the principles of cell respiration and photosynthesis in an introductory high school biology class with virtual simulations of the same activities. Additionally student results were analyzed to assess if student conceptual understanding was affected by the complexity of the simulation. Although all student groups posted average gain increases between the pre and post-tests …

Occasional White Boarding : Examining The Effects Of Physics Students' Understanding Of Motion Graphs , Tony Schwaller

Dissertations, Master's Theses and Master's Reports - Open

The Modeling method of teaching has demonstrated well--‐documented success in the improvement of student learning. The teacher/researcher in this study was introduced to Modeling through the use of a technique called White Boarding. Without formal training, the researcher began using the White Boarding technique for a limited number of laboratory experiences with his high school physics classes. The question that arose and was investigated in this study is “What specific aspects of the White Boarding process support student understanding?”

For the purposes of this study, the White Boarding process was broken down into three aspects – the Analysis of data …

Comparing Remote Sensing And Ground-Based Methods Of Quantifying Cover Type And Carbon Storage In An Urban Forest, Christine L. Jones

Dissertations, Master's Theses and Master's Reports - Open

Understanding the canopy cover of an urban environment leads to better estimates of carbon storage and more informed management decisions by urban foresters. The most commonly used method for assessing urban forest cover type extent is ground surveys, which can be both timeconsuming and expensive. The analysis of aerial photos is an alternative method that is faster, cheaper, and can cover a larger number of sites, but may be less accurate. The objectives of this paper were (1) to compare three methods of cover type assessment for Los Angeles, CA: handdelineation of aerial photos in ArcMap, supervised classification of aerial …

Analysis Of The Making Our Mark Project, Shaughn Kern

Dissertations, Master's Theses and Master's Reports - Open

No abstract provided.

Implementation Of The Conjugate Heat Transfer Code In Kiva-4, Edward Ng

Dissertations, Master's Theses and Master's Reports - Open

KIVA is an open Computational Fluid Dynamics (CFD) source code that is capable to compute the transient two and three-dimensional chemically reactive fluid flows with spray. The latest version in the family of KIVA codes is the KIVA-4 which is capable of handling the unstructured mesh. This project focuses on the implementation of the Conjugate Heat Transfer code (CHT) in KIVA-4. The previous version of KIVA code with conjugate heat transfer code has been developed at Michigan Technological University by Egel Urip and is be used in this project. During the first phase of the project, the difference in the …

Stochastic Knock Detection Model For Spark Ignited Engines, Yashodeep Lonari

Dissertations, Master's Theses and Master's Reports - Open

This report presents the development of a Stochastic Knock Detection (SKD) method for combustion knock detection in a spark-ignition engine using a model based design approach. Knock Signal Simulator (KSS) was developed as the plant model for the engine. The KSS as the plant model for the engine generates cycle-to-cycle accelerometer knock intensities following a stochastic approach with intensities that are generated using a Monte Carlo method from a lognormal distribution whose parameters have been predetermined from engine tests and dependent upon spark-timing, engine speed and load. The lognormal distribution has been shown to be a good approximation to the …

Synthesis Of Computations And Experiments For Obtaining Pulsatile Gas Flow Rates From Dynamic Pressure Difference Measurements Across An Orifice-Plate Meter, Nikhil Ajotikar

Dissertations, Master's Theses and Master's Reports - Open

The use of conventional orifice-plate meter is typically restricted to measurements of steady flows. This study proposes a new and effective computational-experimental approach for measuring the time-varying (but steady-in-the-mean) nature of turbulent pulsatile gas flows. Low Mach number (effectively constant density) steady-in-the-mean gas flows with large amplitude fluctuations (whose highest significant frequency is characterized by the value f_F) are termed pulsatile if the fluctuations have a direct correlation with the time-varying signature of the imposed dynamic pressure difference and, furthermore, they have fluctuation amplitudes that are significantly larger than those associated with turbulence or random acoustic wave signatures. …

Characterizing A Single Photon Detector, Paul N. Rojas

Dissertations, Master's Theses and Master's Reports - Open

I will present my work about constructing and characterizing a single photon detector. Using the 1550nm laser and second harmonic light generation, I am able to count single photons on a Multi‐Pixel Photon Counter (MPPC) silicon APD. My results show that upwards of 22% quantum efficiency is achievable with the MPPC. Future work will include coincidence detection of correlated photon‐pair.

Four-Window Technique For Measuring Optical-Phase-Space-Time-Frequency Tomography, Rachel A. Blaser

Dissertations, Master's Theses and Master's Reports - Open

A new approach, the four-window technique, was developed to measure optical phase-space-time-frequency tomography (OPSTFT). The four-window technique is based on balanced heterodyne detection with two local oscillator (LO) fields. This technique can provide independent control of position, momentum, time and frequency resolution. The OPSTFT is a Wigner distribution function of two independent Fourier transform pairs, phase-space and time-frequency. The OPSTFT can be applied for early disease detection.

Atp Modeling Of Internal Transformer Faults For Relay Performance Testing, Elizaveta O. Egorova

Dissertations, Master's Theses and Master's Reports - Open

Transformers are very important elements of any power system. Unfortunately, they are subjected to through-faults and abnormal operating conditions which can affect not only the transformer itself but also other equipment connected to the transformer. Thus, it is essential to provide sufficient protection for transformers as well as the best possible selectivity and sensitivity of the protection. Nowadays microprocessor-based relays are widely used to protect power equipment. Current differential and voltage protection strategies are used in transformer protection applications and provide fast and sensitive multi-level protection and monitoring. The elements responsible for detecting turn-to-turn and turn-to-ground faults are the negative-sequence …

Nanofluid Optical Property Characterization: Towards Efficient Direct Absorption Solar Collectors, R. A. Taylor, P. E. Phelan, Todd Otanicar, R. Adrian, R. Prasher

Mechanical Engineering Faculty Works

Suspensions of nanoparticles (i.e., particles with diameters < 100 nm) in liquids, termed nanofluids, show remarkable thermal and optical property changes from the base liquid at low particle loadings. Recent studies also indicate that selected nanofluids may improve the efficiency of direct absorption solar thermal collectors. To determine the effectiveness of nanofluids in solar applications, their ability to convert light energy to thermal energy must be known. That is, their absorption of the solar spectrum must be established. Accordingly, this study compares model predictions to spectroscopic measurements of extinction coefficients over wavelengths that are important for solar energy (0.25 to 2.5 mu m). A simple addition of the base fluid and nanoparticle extinction coefficients is applied as an approximation of the effective nanofluid extinction coefficient. Comparisons with measured extinction coefficients reveal that the approximation works well with water-based nanofluids containing graphite nanoparticles but less well with metallic nanoparticles and/or oil-based fluids. For the materials used in this study, over 95% of incoming sunlight can be absorbed (in a nanofluid thickness >= 10 cm) with extremely low nanoparticle volume fractions - less than 1 x 10(-5), or 10 parts per million. Thus, nanofluids could be used to absorb sunlight with a negligible amount of viscosity and/or density (read: pumping power) increase.

Experimental Method Calibration (Mecr): A New Relative Method For Heat Flux Sensor Calibration, Craig D. Adams, A Jean, M Medina, F Miranville

Civil and Environmental Engineering Faculty Publications

Heat flux sensor calibration is often expensive, but it is also a fundamental step to obtain valid results. According to the needs, several calibration procedures could be considered. If experimental interpretations focus on heat flux values comparison rather than true values, a relative calibration with high accuracy can be performed. This paper focuses on a new relative calibration-type method of heat flux sensors (HFSs). In general, the HFSs were originally (even recently) factory and in-house-calibrated, but this method was used to calibrate them to an exact common reading to help in performing accurate experiments and eliminating errors that could result …

Characterizing Liquefaction Potential Of Pleistocene Soil Deposits In The Charleston Area, South Carolina, Tahereh Heidari

All Dissertations

Liquefaction potential of major Pleistocene deposits in the Greater Charleston area, South Carolina is investigated in this dissertation. The data considered to characterize liquefaction potential include field performance information the 1886 Charleston earthquake and the results of many seismic cone penetration tests with pore water measurements (SCPTu). The investigation begins with the Mount Pleasant area, and then expands to the entire Greater Charleston area.
A liquefaction potential map of Mount Pleasant is created through reviewing available first-hand accounts of ground behavior during the 1886 earthquake, analyzing cone penetration test and shear wave velocity data, and correlating the results with geology. …

Molecular Phylogeny And Divergence Times Estimates Of Lilium Section Liriotypus (Liliaceae) Based On Plastid And Nuclear Ribosomal Its Dna Sequence Data, Nursel İki̇nci̇

Turkish Journal of Botany

In the present study the phylogeny and the biogeography of the genus Lilium L. section Liriotypus Asch. et Graebn. were investigated and divergence times for the section Liriotypus were calculated. The study group covers Lilium species from Europe, the Italian and Balkan peninsulas, Anatolia, and the Caucasus. Plastid DNA sequence data (the trnC-petN intergenic spacer and petN gene) and nuclear DNA ITS sequence data were used to infer the phylogenetic history of the section Liriotypus. Molecular phylogenetic dating using the molecular clock hypothesis with sequences of nrDNA ITS region was used to calculate the time of diversification within the section …

The Role Of Income And Employment On School Participation Rate In Pasay City And Eastern Samarthe Role Of Income And Employment On School Participation Rate In Pasay City And Eastern Samar¹, Tereso S. Tullao Jr, John Paolo R. Rivera

DLSU Business & Economics Review

The Philippines committed itself to the United Nations’ Millennium Development Goals (MDG), one of which is the universal access to primary education by 2015. To address the goal, supply factors and demand factors must be considered. Supply factors refer to the ability of the government to provide resources to finance elementary education. Demand factors refer to the variables affecting household’s decision to demand educational services such as income, education cost, and demographic characteristics of the households: age structure and family characteristics. This study explored the extent to which household income and household head employment status influence elementary school participation rate …

Value Added Benefits Of High Definition Surveying (Laser Scanning) In Contrast To In-Situ Surveying For Erosion Of Hydrological Waterways

Journal of Spatial Hydrology

The purpose of this paper is to depict and illustrate the benefits of High Definition Surveying (HDS), also known as 3-dimensional laser scanning, in contrast to field surveying methods, such as Real-time Kinematic Global Positioning System (RTK-GPS), on a hydrologic study (topographic) application. This research investigates how the improvement of application software within laser scanning, coupled with constant advancements in computer processing as well as data acquisition methods, has made the use of HDS cost effective and applicable in the surveying community. The time and cost benefit aspects of HDS applications in comparison to RTK-GPS surveying methods were analyzed, and …

Stochastic Generation Of Monthly Streamflows Of Maroon River In Iran

Journal of Spatial Hydrology

River flow forecasting constitutes one of the most important applications in hydrology. Several techniques and methods can be used in planning, design and management of water resources system. A stochastic model is one these techniques that formed based on time series. Maroon River is one of the most important rivers in Iran, therefore estimation of its discharge with appropriate models is important. Idnak Hydrometric station on the Maroon River with 41 years (1967 to 2009) of observed stream flow data was selected to for study. In these research stochastic models is fitted to monthly discharge. After performance of necessary tests, …

On The Good Name Of The Dead: Peace, Liberty, And Empire In Robert Morehead's Waterloo Sermon, Bob Tennant

Religion in the Age of Enlightenment

On Sunday, July 2, 1815, a fortnight after the battle of Waterloo, the Scottish Episcopalian minister Robert Morehead ( 1777-1842) preached a sermon- On the Good Name of the Dead [Ecclesiastes 7:1]-which displayed many of the components of a theory of Christian empire and combined them with the radically new approach to pulpit oratory that Morehead was helping to develop. The present essay offers a method of exploring the connection between ideology and rhetoric based on tools belonging to linguistic analysis rather than conventional historiography. Thus it is hoped that the evidential base available to historians may be extended. …

Holy Land Travel And The Representation Of Prayer In The Enlightenment, Michael Rotenberg-Schwartz

Religion in the Age of Enlightenment

Something about publicized supplication embarrasses critical readers, especially of the Enlighenment, who, since Samuel Johnson, have been trained to doubt if not the sincerity at least the efficacy of rhetoricized prayer. Milton was "nothing satisfied" with the preliminary eight stanzas of his unfinished lyric "The Passion;' for example, and printing it anyway has been cause enough for his critics to remain so. For one, the closest Milton gets to the scene of

the crucifixion is Jesus's tomb after the resurrection; he finds the "sad Sepulchral rock / That was the Casket of Heav'ns richest store" ( 43-44; emphasis added). More …

Who Cares?, Gabriel H. Teninbaum

Suffolk University Law School Faculty Works

Imagine you represent a criminal defendant convicted of second-degree murder stemming from the killing of his own father. Assume that a jury is charged with deciding the defendant's prison sentence and that you, as the defendant's attorney, are tasked with making a closing argument seeking the shortest term possible. You have been presented with two options as to how to do it: you can make a closing argument that uses rhetorical questions to summarize and reinforce key points, or, alternatively, you can use a closing argument that summarizes and reinforces key points through declarative statements.

Does it matter which option …

A New Trygetus Species From Central Asia (Araneae: Zodariidae), Yuri Marusik

Turkish Journal of Zoology

The new species Trygetus gromovi sp.n. is described based on the holotype female collected from eastern Turkmenistan. It is related to T. jacksoni Marusik & Guseinov, 2003 from Azerbaijan.

A Survey On Tersilochinae (Hymenoptera: Ichneumonidae) Species Of Turkey, With A Key To European Genera, Andrey Ivanovich Khalaim, Murat Yurtcan

Turkish Journal of Zoology

Thirty-five species from 7 genera of Tersilochinae (Hymenoptera: Ichneumonidae) occur in Turkey. Of these, 20 species are new records for Turkish fauna. The general distribution and data on the biology of Turkish species are provided. Keys to all European genera and subgenera are given, with a short annotation on the taxonomy, distribution and biology of each genus.

New Records Of Rotifers From Iran With Biogeographic Considerations, Masoud Hakimzadeh Khoei, Murat Kaya, Ahmet Altindağ

Turkish Journal of Zoology

The rotifer fauna of Iran is poorly known. This comprehensive study presents the results of an investigation of rotifers sampled in 51 freshwater sites of Tehran and neighboring provinces of Iran, from May 2006 to May 2007. Of the 115 species identified, 72 from 19 genera and 5 families are new for the fauna of Iran. Including the present records, the number of known Iranian rotifers has now reached 143. So far, the species found in Iran are overwhelmingly Palearctic. The present study is a first step towards more similar studies to update the existing species list of rotifers from …

A Brief Review Of Morphological Variation In Natrix Tessellata In Israel: Between Sides, Among Individuals, Between Sexes, And Among Regions, Yehudah Leopold Werner, Tal Shapira

Turkish Journal of Zoology

After introducing the distribution and biology of Natrix tessellata in Israel, on the southern edge of its range, we address its intraspecific variation from the literature and examination of 262 museum specimens. Head pholidosis showed no significant directional asymmetry, but asymmetry in infralabial plates was significantly correlated with frequency of injured tails. Variation in body size showed no clear seasonal growth, presumably due to climatic fluctuations. The variation in number of ventrals (in males, 159-173, mode 165) was not geographical. Females attained 750-800 mm (head and body; mode 600-650) and males 700-750 (mode 500-600) mm. Females had significantly greater relative …

Model Predictive Controller Design Of Hydrocracker Reactors, Di̇la Gökçe

Turkish Journal of Electrical Engineering and Computer Sciences

This study summarizes the design of a Model Predictive Controller (MPC) in Tüpraş, İzmit Refinery Hydrocracker Unit Reactors. Hydrocracking process, in which heavy vacuum gasoil is converted into lighter and valuable products at high temperature and pressure is described briefly. Controller design description, identification and modeling studies are examined and the model variables are presented. WABT (Weighted Average Bed Temperature) equalization and conversion increase are simulated, results are discussed.

Taking The Risk Out Of Termination: An Enterprise Risk Management Analysis Of The Normative System Of Employment Standards Challenged By Honda V Keays, Ryan Henry Edmonds

Dalhousie Journal of Legal Studies

Over many years, Canadian courts have crafted a unique body of employment law jurisprudence. The purpose of this paper is to discuss how that jurisprudence was unraveled when the Supreme Court of Canada rendered its decision in Honda v. Keays. That holding, in effect, overturned aspects of Wallace v. United Grain Growers; a case that transformed how non-unionized employees were thought of and treated in Canadian society. This paper examines the analytical underpinnings of wrongful dismissal law’s previous regime on bad faith damages and juxtaposes it to the new regime in Keays, concluding that the shift in focus from employer …

Does The Charter Follow The Flag? Revisiting Constitutional Extraterritoriality After R V Hape, Chanakya Sethi

Dalhousie Journal of Legal Studies

Jacques Maritain, the noted philosopher and political thinker and a principal drafter of the Universal Declaration of Human Rights, once contended that “political philosophy must get rid of the word, as well as the concept, of Sovereignty.” He reasoned as much “not because [sovereignty] is an antiquated concept,” or “because the concept of Sovereignty creates insuperable difficulties and theoretical entanglements in the field of international law,” but because “this concept is intrinsically wrong and bound to mislead us if we keep on using it.” Maritain’s proposal may have been exceedingly bold and his criticisms perhaps too harsh, but they nonetheless …

Risk V Benefits: The Use Of Selective Serotonin Reuptake Inhibitors In Children, Kim Wilton

Dalhousie Journal of Legal Studies

Selective Serotonin Reuptake Inhibitors (SSRIs) are a class of antidepressant medications that came on the market in the late eighties and early nineties. SSRIs were found to be clinically effective in treating clinical depression, and anxiety disorders in adults and had less cumbersome side effects compared to the older Tricyclic antidepressants. The first drug in this class introduced was fluoxetine (Prozac), which was soon followed by paroxetine (Paxil), sertraline (Zoloft), citalopram (Celexa), fluvoxamine (Luvox), and escitalopram (Lexapro). Today the uses of SSRIs have broadened to include treatment for “Post-Traumatic Stress Disorder, pre-menstrual dysphoric disorder, urinary incontinence” and many other seemingly …

The Patentability Of Human Embryonic Stem Cells: Is The Inconsistent Application Of The European Union Biotechnology Directive's Moral Exclusion Clause Undermining Investor Confidence In Europe, Providing A Competitive Advantage To The United States?, Stephen R. Donnelly

Dalhousie Journal of Legal Studies

The original justification for Directive 98/44/EC of the European Parliament and of the Council of 6 July 1998 on the Legal Protection of Biotechnological Inventions (the Directive) was to promote the growth of the European life science sector by harmonizing and clarifying European biotechnology patent laws. As early as 1985, the European Commission had identified the fragmentation of European patent laws as a potential problem. The Directive thus aimed to address obstacles to the unity of the internal market, which would arise if national Member States adopted divergent and uncoordinated policies and legislation in a field of economic activity that …