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High-Pressure Kinetic Interactions Between Co And H2 During Syngas Catalytic Combustion On Pdo, Ran Sui, John Mantzaras, Rolf Bombach, Meysam Khatoonabadi

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The catalytic combustion of H2/CO/O2/N2 mixtures over PdO was investigated at pressures 3 to 10 bar, H2:CO volumetric ratios 1:5 to 3:1, and global equivalence ratios ψ = 0.13 and 0.23. The catalyst surface temperatures were controlled to 540-690 K, a range especially important for hybrid hetero-/homogeneous combustion approaches with large gas turbines at idle or part-load operation and for microreactors with recuperative small-scale turbines. In situ Raman measurements determined the major gas-phase species concentrations over the catalyst boundary layers in a channel-flow reactor, thermocouples monitored the surface temperatures, and surface characterization identified the catalyst oxidation state (PdO) and surface …

Spatial Transformation Of A Layer-To-Layer Control Model For Selective Laser Melting, Xin Wang, Robert G. Landers, Douglas A. Bristow

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Selective Laser Melting (SLM) is an Additive Manufacturing (AM) technique with challenges in its complexity of process parameters and lack of control schemes. Traditionally, people tried time-domain or frequency-domain control methods, but the complexity of the process goes beyond these methods. In this paper, a novel spatial transformation of SLM models is proposed, which transforms the time-domain process into a spatial domain model and, thus, allows for state-space layer-to-layer control methods. In a space domain, this also provides the convenience of modelling laser path changes. Finally, a layer-to-layer Iterative Learning Control (ILC) method is designed and demonstrates the methodology of …

Fuel-Rich Hetero-/Homogeneous Combustion Of C3h8/O2/N2 Mixtures Over Rhodium, John Mantzaras, Ran Sui, Rolf Bombach

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The catalytic (heterogeneous) and gas-phase (homogeneous) combustion of C3H8/O2/N2 mixtures over rhodium was investigated experimentally and numerically at 5 bar and at fuel-rich equivalence ratios π = 2.0-3.5 relevant to propane Catalytic Partial Oxidation (CPO). In situ spatially-resolved Raman measurements of major gas-phase species concentrations and Planar Laser Induced Fluorescence (PLIF) of formaldehyde were applied in an optically accessible channel-flow reactor to monitor the catalytic and gas-phase processes, respectively, while accompanying 2D simulations were carried out with detailed hetero-/homogeneous chemical reaction mechanisms. Due to the high gas-phase reactivity of propane, homogeneous chemistry could not be ignored over most of the …

Establishing A Rifaximin Criteria For Use Protocol For Hepatic Encephalopathy, Allison Vargas, Stephanie Palma, Erika Dittmar, Heidi Clarke

All Publications

No abstract provided.

Nanobubble Capillary Force Between Parallel Plates, Eric Bird, Zhi Liang

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The Aggregation of Fine or Ultrafine Particles in Liquid Due to the Nanobubble (NB) Bridging Capillary Force is a Key Process for Many Industrial Applications. the Magnitude and Direction of the NB Capillary Force (NBCF) Are Directly Affected by the Geometry of the NB Gas Bridge between Two Adjoining Particles. Although the NBCF Can Be Accurately Measured using Experimental Techniques, It is Very Challenging to Monitor the Images of a NB Capillary Bridge in Nanoscale Spatial Resolution in NBCF Measuring Experiments. as a Result, the Capillary Force Model that Predicts the Dependence of the NBCF on the Geometry of the …

Improving Pediatric Mental Health In Nh Through Collaboration And Community, Corina Chao, Holly Tutko

All Materials

No abstract provided.

Telehealth! Policy, Practice And Patients, Deborah H. Fournier, Marcy Ainslie, Marcy Doyle

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No abstract provided.

A Guide To Trauma Informed Pediatric Primary Care, Felicity Bernard, Corina Chao, Holly Tutko

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No abstract provided.

Pediatric Trauma-Informed Care At Various Levels Of Integration, Felicity Bernard, Dee Watts

All Materials

No abstract provided.

Covering The Care: Health Insurance Coverage In Nh - 2021 Update, Josephine B. Porter, Lucy C. Hodder, Kelly Dixon

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No abstract provided.

New Hampshire Child And Teen Mental Health: An Analysis And Comparison Of 2019-2020 Healthcare Claims Data, Bethany Swanson, Erica-Lyn Plante, Amy Costello, Jo Porter, Chris White

All Materials

No abstract provided.

Facilitating A Quality Improvement Approach To Childhood Adversity Screening In Primary Care: A Handbook, Felicity Bernard, Corina Chao, Holly Tutko, Dee Watts

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Facilitating a Quality Improvement Approach to Childhood Adversity Screening in Primary Care: A Handbook, owned by the University of New Hampshire and authored by Felicity Bernard, Corina Chao, Holly Tutko, and Dee Watts, licensed under CC BY NC ND 2.0.

Author Correction: Impact Of Kras Mutation Status On The Efficacy Of Immunotherapy In Lung Cancer Brain Metastases, Rupesh Kotecha, Manmeet Ahluwalia

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No abstract provided.

Author Correction: Neutrophil To Lymphocyte Ratio Influences Impact Of Steroids On Efficacy Of Immune Checkpoint Inhibitors In Lung Cancer Brain Metastases, Manmeet Ahluwalia

All Publications

No abstract provided.

Gender Disparities In Covid Deaths, Lisamarie Bennett

Student Publications and Presentations

The public health response to the breakout of COVID-19 requires fundamental changes in individual behavior, such as isolation at home or social distancing. However, the difference in COVID mortality rates between men and women could indicate gender differences in COVID-19 attitudes and behavior. In this study, we used a sample of 512 participants to examine whether there were relationships between gender and degree of adherence to social distancing and quarantining protocols. An independent samples t-Test was conducted to evaluate the hypothesis that men spend fewer days social distancing than women. The test was not significant. Another independent samples t-Test was …

A Study On Anti-Maskers, Cole Kessler, Lauren Toy

Student Publications and Presentations

In-depth interviews were conducted in September of 2021 with 15 Florida residents between the ages of 18-30 (8 males, 7 females). Our primary goal was to identify why these individuals choose not to wear face masks when required or highly recommended despite the potential legal, social, and health consequences. The researchers discovered that these individuals frame not wearing masks as physically harmless, and socially and legally acceptable. Specifically, these individuals justify their anti-masking actions using seven patterns arising from both their internal views and external influences. These patterns are: 1) Changing CDC mask wearing recommendations, 2) Mask wearing health consequences, …

Prognostic Markers Of Geriatric Patients In The Intensive Care Unit With Acute Hypoxic Respiratory Failure Secondary To Covid-19, Anshul Saxena, Md Ashfaq Ahmed, Zhenwei Zhang

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Introduction: SARS-CoV-2 (COVID-19) has continued to be a public health emergency, affecting almost 450 million people worldwide, with a disproportionate significant disease burden in the elderly community. Our objective is to provide population specific prognostic markers upon description of demographic factors, clinical characteristics, diagnostic variables, treatment characteristics and outcome variables in critically ill geriatric patients with acute hypoxic respiratory failure due to COVID-19 infection.

Methods: This is a retrospective chart review of 165 patients admitted to a single institution’s medical and cardiovascular intensive care unit between the dates of March 01, 2020 and December 31, 2020. Inclusion criteria was patients …

Clinical Diagnosis Of Temporal Arteritis With Seronegative And Negative Biopsy Studies, Marc Swerdloff

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Giant cell arteritis (GCA), also known as temporal arteritis is the most common of the systemic vasculitides. It occurs in individuals older than 50 years of age and peaks in incidence in the seventh decade. The gold standard for diagnosis of GCA is temporal artery biopsy (TABx) which will show transmural inflammation, but a negative biopsy does not rule out the disease. We present a case of a 66-year-old male with a classic clinical presentation of temporal arteritis with a normal erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), and negative bilateral temporal artery biopsies. He was discharged on prednisone. Ten …

Ainhum (Spontaenous Dactylolysis) In A 50-Year-Old Haitian Man: A Case Report, Steven Shader, Julio Ortiz

All Publications

Abstract Ainhum is a rare idiopathic condition that occurs in those with African heritage usually affecting the 5th toe. We present a case report of 50 year old Haitian male presented with a painful 5th right toe with constricting band encircled the 5th toe at the base with loss of voluntary motion, a bulbus appearing distal toe, and external rotation of the nail plate. The pain and groove progressed over 6 months, starting as a crease appearing at the medial digitaltoplantar fold. He was prescribed a course of antibiotics for concern of cellulitis this failed to provide relief and referred …