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8/28/2019: Course Change Form MECH 521
No full textThe Course Number is being changed from MECH-521 to MECH-421 since this is an undergraduate capstone course.
Kettering University is eliminating 500 course numbers due to HLC concerns about our graduate program. Since our 500 level courses are defined as mezzanine they are not considered to be graduate courses by HLC. Changing the number makes sure that graduate students should not take an undergraduate capstone course
8/28/2019: Course Change Form MECH 516
No full textKettering University is eliminating 500 course numbers due to HLC concerns about our graduate program. Since our 500 level courses are defined as mezzanine they are not considered to be graduate courses by HLC. This puts a limit on how many 500 level courses a graduate student can take in the graduate program. According to HLC they cannot take more than five 500 courses. The Course Number is being changed to MECH-416
Synthesis and Characterization of Gadolinium-Doped Magnetite
No full textSince the emergence of magnetic fluid hyperthermia as a treatment modality for difficult to treat cancers such as glioblastoma multiformae, the need to understand the behavior of the materials involved has become paramount. Although materials like magnetite (Fe3O4) are commonly processed into ferrofluids for use in this treatment, the search for materials with higher magnetic susceptibility and heating ability drives much of the current research. The synthesis of gadolinium-doped magnetite nanoparticles via chemical co-precipitation and electrochemical deposition, and their effects on ferrofluid performance will be presented and compared
The Photoelectric Effect: Project-based Undergraduate Teaching and Learning Optics through a Modern Physics Experiment Redesign
Get PDFThe photoelectric effect is a cornerstone textbook experiment in any Modern Physics or Advanced Laboratory course, designed to verify Einstein’s theory of the photoelectric effect, with the implicit determination of an experimental value for Planck’s constant and the demonstration of the particle nature of light. The standard approach to the experiment is to illuminate the light-sensitive cathode of a vacuum-tube photocell with monochromatic light of known wavelengths; a reversed-voltage is then applied to the photocell and adjusted to bring the photoelectric current to zero. The stopping voltage is then plotted as a function of the inverse wavelength or frequency of the incident light, and Planck\u27s constant is determined from the slope of the graph. Additionally, a value for the work function of the photocathode can be extracted from the intercept. The commercial apparatus for the experiment is available from a number of vendors (PASCO, Leybold) in various forms, degrees of performance and cost. However, designing and assembling a photoelectric effect experiment apparatus can in itself be a valuable experiential project-based undergraduate learning opportunity in Optics involving both fundamental light and optics theory and practical optics and opto-mechanical design aspects. This presentation details a project undertaken in the Applied Physics/Engineering Physics programs at Kettering University involving students in a Modern Physics laboratory course. The first phase of the project, discussed in detail in this paper, was a redesign of an existing photoelectric effect apparatus through an undergraduate student thesis, currently in advanced stages of completion. In a second phase of the project we plan to replicate the newly assembled experimental apparatus up to as many as six identical stations and deploy it in our Modern Physics lab course. Typically, more than 50% of the students in this course are engineering majors who would otherwise not get any significant exposure to problems of optics and optical design. We believe that the modular design of the new apparatus together with a carefully redesigned lab activity will allow us to have our students explore major aspects of optics and optoelectronic design while performing this classic Modern Physics experiment
One- and Two-Stage Anaerobic Co-Digestion of Cucumber Waste and Sewage Sludge
No full textThe demand for uniformly sized and shaped produce that are aesthetically pleasing results in significant food waste throughout the world. Cucumber waste is a major agricultural waste product in a number of countries, especially areas with high pickle production. Opportunity exists for wastewater treatment plants containing anaerobic digesters to utilize cucumber agricultural and industrial waste for biogas production. The biomethane potential of cucumber waste as a substrate for co-digestion with sewage sludge was assessed. The impact of long-term co-digestion of cucumber was then evaluated using mesophilic continuously stirred tank reactors (CSTRs), in both single- and two-stage anaerobic co-digestion with sewage sludge. Ground cucumber waste was added to sewage sludge at 8% of the volume (4.5–4.6% of the organic load) and CSTRs were maintained for five hydraulic retention times (HRTs). One-stage co-digestion of cucumber waste produced comparable gas levels as CSTRs without cucumbers (averaging 219 and 221 m3/kgVS/h, respectively) after two HRTs. The two-stage cucumber co-digestion CSTR averaged 64% higher specific gas than the control and single-stage digester, although the volumetric gas produced was lower (averaging 152 m3/kgVS/h) likely due to gas loss in the first stage resulting in a lower organic load rate. After four HRTs, relative methanogen content showed dramatic differences in levels of hydrogenotrophic methanogens for the two-stage digester, while the one-stage digester containing cucumber waste showed minor differences relative to the control. Cucumber waste co-digestion with sewage sludge is effective although numerous conditions could be utilized to optimize gas production
Wearable Augmented Reality Application for Shoulder Rehabilitation
Get PDFAugmented reality (AR) technology is gaining popularity and scholarly interest in the rehabilitation sector because of the possibility to generate controlled, user-specific environmental and perceptual stimuli which motivate the patient, while still preserving the possibility to interact with the real environment and other subjects, including the rehabilitation specialist. The paper presents the first wearable AR application for shoulder rehabilitation, based on Microsoft HoloLens, with real-time markerless tracking of the user’s hand. Potentialities and current limits of commercial head-mounted displays (HMDs) are described for the target medical field, and details of the proposed application are reported. A serious game was designed starting from the analysis of a traditional rehabilitation exercise, taking into account HoloLens specifications to maximize user comfort during the AR rehabilitation session. The AR application implemented consistently meets the recommended target frame rate for immersive applications with HoloLens device: 60 fps. Moreover, the ergonomics and the motivational value of the proposed application were positively evaluated by a group of five rehabilitation specialists and 20 healthy subjects. Even if a larger study, including real patients, is necessary for a clinical validation of the proposed application, the results obtained encourage further investigations and the integration of additional technical features for the proposed AR application
Education and Licensure Requirements for Automated Motor Vehicles
No full textThis paper addresses the need for an effective method of educating automated vehicle operators and a collaboration between industry, government, and professional organizations to create licensure programs. Research was compiled on current laws regarding licensure to operate automated motor vehicles, consumer knowledge of automated vehicles, and methods of training. There was found to be a lack of legislation regarding licensure, as well as a failure to provide educational programs for consumers. Licensure legislation, in combination with proper training for each level of autonomy, is considered necessary in order to protect against crashes and improper or unsafe operation of automated motor vehicles. To address this, the paper outlines a driver education program for operators of automated vehicles. A method of visually identifying the level of automation within the vehicle is also presented. The SAE J3016 standard is used throughout to reference levels of vehicle autonomy
MRB10130 is a RESC Assembly Factor that Promotes Kinetoplastid RNA Editing Initiation and Progression
No full textUridine insertion deletion editing in kinetoplastid protozoa requires a complex machinery, a primary component of which is the RNA editing substrate binding complex (RESC). RESC contains two modules termed GRBC (guide RNA binding complex) and REMC (RNA editing mediator complex), although how interactions between these modules and their mRNA and gRNA binding partners are controlled is not well understood. Here, we demonstrate that the ARM/HEAT repeat containing RESC protein, MRB10130, controls REMC association with mRNA- and gRNA-loaded GRBC. High-throughput sequencing analyses show that MRB10130 functions in both initiation and 3\u27 to 5\u27 progression of editing through gRNA-defined domains. Editing intermediates that accumulate upon MRB10130 depletion significantly intersect those in cells depleted of another RESC organizer, MRB7260, but are distinct from those in cells depleted of specific REMC proteins. We present a model in which MRB10130 coordinates numerous protein-protein and protein-RNA interactions during editing progression
BMAP/G/c Queueing Model with Group Clearance Useful in Telecommunications Systems – A Simulation Approach
Get PDFQueueing models in which customers or messages arrive in batches with inter-arrival times of batches possibly correlated and services rendered in batches of varying sizes play an important role in telecommunication systems. Recently queueing models of BMAP/G/1-type in which a new type of group clearance was studied using embedded Markov renewal process as well as continuous time Markov chain whose generator has a very special structure. In this paper, we generalize these models to multi-server systems through simulation approach. After validating the simulation model for the single server case, we report our simulated results for much more general situations
