Physical Sciences and Mathematics Commons^™

Application Of Rain Intensity Dependent Rain Admittance Factor (Raf) In Hygrothermal Performance Assessment Of Wall Systems, Emishaw Iffa, Fitsum Tariku

International Building Physics Conference 2018

Wind-driven rain (WDR) is one of the main moisture loading sources on the exterior enclosures. The direct impact of wind-driven rain on the hygrothermal performance of building envelope has been well documented. Rain admittance factor (RAF) and rain penetration values characterize the amount of water reaching the exterior surface and the exterior surface of the water-resistive barrier respectively based on measured horizontal rain intensity. In common RAF factor calculation from horizontal rainfall data procedures, such as ASHRAE 160, RAF values are not affected by the intensity of the rainfall. However, a previous study shows RAF coefficients are sensitive to the …

Do Interface Resistances Matter In Historic Masonries? -Analysis Based On Xray Tomography And Heat, Air And Moisture Modelling, Klaas Calle, Nathan Van Den Bossche

International Building Physics Conference 2018

For hygrothermal simulations it is often advised to homogenize masonry wall constructions into a 1D solid brick construction. This saves computational time, but it may lead to an underestimation of moisture related risks. Some literature states that the impact of mortar is negligible, but no specific attention was paid to historic masonries, which often have high absorptive mortars (e.g. lime) and/or bricks. Hence, this study investigates the impact of the interface resistance between brick and mortar, in relation to the properties of the adjacent materials during absorption as well as under real climate conditions. As expected the impact of interface …

Drainage And Retention Of Water In Small Drainage Cavities: Experimental Assessment, Stéphanie Van Linden, Michael Lacasse, Nathan Van Den Bossche

International Building Physics Conference 2018

Water that enters the drainage cavity of a rain screen wall assembly through deficiencies in the cladding will either be drained or retained by absorption or adhesion on the drainage surfaces. The objective of this study is to gain insight into the different factors that affect the quantity of water drained or retained in a drainage cavity. Drainage tests have been conducted for water flowing between two vertical polycarbonate plates with different gap widths to determine the effect on the drainage rate. Tests showed that even small cavities with a width of 1 mm can already drain more water than …

Rain-Tightness Of Door Sill Sealing, Lars Gullbrekken, Steinar Grynning

International Building Physics Conference 2018

The harsh Norwegian climate requires buildings designed according to high standards. The airtightness of the building envelope is crucial to attain an energy efficient building and to avoid moisture problems. A considerable part of building defects registered in the SINTEF Building defects archive are related to leakages through door sills especially in combination with balconies. The aim of the study has been to examine the rain tightness of the joint below door sills. A laboratory investigation using a driving rain cabined according to EN 1027 has been conducted to provide answers to the matter. In total 14 different test were …

Multiphysics Modeling Of Materials, Assemblies, Buildings And Cities, Jan Carmeliet, Jonas Allegrini, Aytac Kubilay, Dominique Derome

International Building Physics Conference 2018

There is growing evidence that heat waves are becoming more frequent under increased greenhouse forcing, associated with higher daytime temperatures and reduced night-time cooling, which might exceed the limits of thermoregulation of the human body and affect dramatically human health. Especially urban areas are affected, since these regions in addition experience an urban heat island (UHI) effect characterized by higher air temperatures compared to the surrounding rural environment. A necessary breakthrough is a shift away from a fragmented approach towards an integrated multiscale urban climate analysis. This type of research is a rather new domain of research and might be …

Continuum And Spectral Line Radiation From A Random Clumpy Medium, John E. Conway, Moshe Elitzur, Rodrigo Para

Physics and Astronomy Faculty Publications

We present a formalism for continuum and line emission from random clumpy media together with its application to problems of current interest, including CO spectral lines from ensembles of clouds and radio emission from H ii regions, supernovae, and star-forming regions. For line emission, we find that the effects of clump opacity on observed line ratios can be indistinguishable from variations of intrinsic line strengths, adding to the difficulties in determining abundances from line observations. Our formalism is applicable to arbitrary distributions of cloud properties, provided the cloud volume filling factor is small; numerical simulations show it to hold up …

Marine Threats Overlap Key Foraging Habitat For Two Imperiled Sea Turtle Species In The Gulf Of Mexico, Kristen M. Hart, Autumn R. Iverson, Ikuko Fujisaki, Margaret M. Lamont, David Bucklin, Donna J. Shaver

United States Geological Survey: Staff Publications

Effective management of human activities affecting listed species requires understanding both threats and animal habitat-use patterns. However, the extent of spatial overlap between high-use foraging areas (where multiple marine species congregate) and anthropogenic threats is not well-known. Our modeling approach incorporates data on sea turtle spatial ecology and a suite of threats in the Gulf of Mexico to identify and map “hot spots” of threats to two imperiled turtle species. Of all 820 “high” threats grid cells, our tracked turtles foraged at least 1 day in 77% of them. Although threat data were not available outside the U.S. Exclusive Economic …

Was Frege A Logicist For Arithmetic?, Marco Panza

MPP Published Research

The paper argues that Frege’s primary foundational purpose concerning arithmetic was neither that of making natural numbers logical objects, nor that of making arithmetic a part of logic, but rather that of assigning to it an appropriate place in the architectonics of mathematics and knowledge, by immersing it in a theory of numbers of concepts and making truths about natural numbers, and/or knowledge of them transparent to reason without the medium of senses and intuition.

Evaluation Of The Bsc-Dream8b Regional Dust Model Using The 3d Livas-Calipso Product, Dimitra Konsta, Ioannis Binietoglou, Antonis Gkikas, Stavros Solomos, Eleni Marinou, Emmanouil Proestakis, Sara Basart, Carlos Pérez García-Pando, Hesham El-Askary, Vassilis Amiridis

Mathematics, Physics, and Computer Science Faculty Articles and Research

The ability of regional atmospheric models to accurately represent long-range transport of dust is crucial for describing dust effects on radiation and clouds and for reducing their uncertainties on these processes. The optimized CALIPSO (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations) pure-dust product that provides the three-dimensional patterns of dust and its transport pathways is a unique tool that can address the aforementioned model's issues. In this study we use the CALIPSO dust extinction profiles as a tool for examining the performance of the regional dust model BSC-DREAM8b in space and time, for the period 2009–2013 over Northern Africa, the …

Surprising Antibacterial Activity And Selectivity Of Hydrophilic Polyphosphoniums Featuring Sugar And Hydroxy Substituents., Tyler J Cuthbert, Benjamin Hisey, Tristan D Harrison, John F Trant, Elizabeth R Gillies, Paul J Ragogna

Chemistry Publications

There is currently an urgent need for the development of new antibacterial agents to combat the spread of antibiotic-resistant bacteria. We explored the synthesis and antibacterial activities of novel, sugar-functionalized phosphonium polymers. While these compounds exhibited antibacterial activity, we unexpectedly found that the control polymer poly(tris(hydroxypropyl)vinylbenzylphosphonium chloride) showed very high activity against both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus and very low haemolytic activity against red blood cells. These results challenge the conventional wisdom in the field that lipophilic alkyl substituents are required for high antibacterial activity and opens prospects for new classes of antibacterial polymers.

Collective Dynamics Of Two-Dimensional Swimming Bacteria: Experiments And Models, Gil Ariel, Marina Sidortsov, Shawn D. Ryan, Sebastian Heidenreich, Markus Baer, Avraham Be'er

Mathematics and Statistics Faculty Publications

The physical properties of collectively swimming bacteria have been thoroughly investigated both experimentally and theoretically using simulations. While models successfully predict some aspects of the dynamics observed in experiments, both models and experiments vary in their underlying assumptions and physical conditions. Hence, it is not clear which models are appropriate for which experimental setups. Here, we study, both experimentally and using two types of models (agent-based and continuous), the statistics of two strains of Serratia marcescens, wild-type and a nontumbling strain, swimming on a two-dimensional monolayer at varying concentrations. The experimental setup allows for a direct comparison with simulation results. …

Efforts Towards The Discovery Of Novel Methods For The Synthesis Of Pharmacologically Relevant Molecular Scaffolds, Graham Joseph Haun

Theses and Dissertations

With the introductions of pharmaceuticals into modern day society many people have been using them to improve their lives. Due to this high increase in demand along with the ever-growing concern of environmental impact pharmaceutical companies have been pressed to synthesis new and existing drugs at a higher rate. This increased rate can cause low yield drugs or have a heavy environmental impact. As the use of pharmaceuticals becomes more widespread the need for greener and simpler organic synthesis methods to make these pharmaceuticals becomes more needed.

Herein is reported the methodological development of different pharmacologically relevant scaffolds. This work …

The Chapman Bone Algorithm: A Diagnostic Alternative For The Evaluation Of Osteoporosis, Elise Levesque, Anton Ketterer, Wajiha Memon, Cameron James, Noah Barrett, Cyril Rakovski, Frank Frisch

Mathematics, Physics, and Computer Science Faculty Articles and Research

Osteoporosis is the most common metabolic bone disease and goes largely undiagnosed throughout the world, due to the inaccessibility of DXA machines. Multivariate analyses of serum bone turnover markers were evaluated in 226 Orange County, California, residents with the intent to determine if serum osteocalcin and serum pyridinoline cross-links could be used to detect the onset of osteoporosis as effectively as a DXA scan. Descriptive analyses of the demographic and lab characteristics of the participants were performed through frequency, means and standard deviation estimations. We implemented logistic regression modeling to find the best classification algorithm for osteoporosis. All calculations and …

A Synthetic Model Of The Nonheme Iron–Superoxo Intermediate Of Cysteine Dioxygenase, Anne A. Fischer, Sergey V. Lindeman, Adam T. Fiedler

Chemistry Faculty Research and Publications

A nonheme Fe(II) complex (1) that models substrate-bound cysteine dioxygenase (CDO) reacts with O₂ at −80 °C to yield a purple intermediate (2). Analysis with spectroscopic and computational methods determined that 2 features a thiolate-ligated Fe(III) center bound to a superoxide radical, mimicking the putative structure of a key CDO intermediate.

Demonstrating The Efficacy Of The Health Sciences And Technology Academy: Using Archival Standardized Test Scores To Analyze An Ost College-Preparatory Program For Underserved Youth, Feon Smith, Sherron Mckendall, Ann Chester, Bethany Hornbeck, Alan Mckendall

Faculty & Staff Scholarship

To combat educational and health disparities, out-of-school-time (OST) STEM enrichment programs provide services to underserved youth to encourage them to pursue college and health careers. This article describes a study conducted to determine if the Health Sciences and Technology Academy (HSTA) program participants who receive year-round educational interventions to prepare them for STEM and health sciences majors performed better on the West Virginia Educational Standards Test (WESTEST2) than non-participants. This study provides descriptive and inferential statistics, specifically one-way ANOVAs with one-to-one matching based on grade level, gender, race, and GPA at the end of the 8th grade year for 336 …

The Use Of Virtual Reality In Enhancing Interdisciplinary Research And Education, Tiffany Leung, Farhana Zulkernine, Haruna Isah

Publications and Scholarship

Virtual Reality (VR) is increasingly being recognized for its educational potential and as an effective way to convey new knowledge to people, it supports interactive and collaborative activities. Affordable VR powered by mobile technologies is opening a new world of opportunities that can transform the ways in which we learn and engage with others. This paper reports our study regarding the application of VR in stimulating interdisciplinary communication. It investigates the promises of VR in interdisciplinary education and research. The main contributions of this study are (i) literature review of theories of learning underlying the justification of the use of …

A Tool For Optimizing Java 8 Stream Software Via Automated Refactoring, Raffi T. Khatchadourian, Yiming Tang, Mehdi Bagherzadeh, Syed Ahmed

Publications and Research

Streaming APIs are pervasive in mainstream Object-Oriented languages. For example, the Java 8 Stream API allows for functional-like, MapReduce-style operations in processing both finite and infinite data structures. However, using this API efficiently involves subtle considerations like determining when it is best for stream operations to run in parallel, when running operations in parallel can be less efficient, and when it is safe to run in parallel due to possible lambda expression side-effects. In this paper, we describe the engineering aspects of an open source automated refactoring tool called Optimize Streams that assists developers in writing optimal stream software in …

Author Index

International Building Physics Conference 2018

No abstract provided.

Keynotes - All, Richard De Dear, Fan Zhang, Patricia J. Culligan, Robert A. W., Christine S. Carleton, Vivian Loftness, Azizan Aziz, Volker Hartkopf, Khee Poh Lam, Bertrand Lasternas, Jan Carmeliet, Jonas Allegrini, Aytac Kubilay, Dominique Derome, Yuguo Li

International Building Physics Conference 2018

No abstract provided.

Ps Poster Session - All

International Building Physics Conference 2018

This document includes all poster sessions at the IBPC 2018.

Table Of Contents

International Building Physics Conference 2018

No abstract provided.

Full Proceedings, 2018, Jianshun Zhang

International Building Physics Conference 2018

Full conference proceedings for the 2018 International Building Physics Association Conference hosted at Syracuse University.

Organization And Oscillations In Simulated Shallow Convective Clouds, Guy Dagan, Ilan Koren, Alexander Kostinski, Orit Altaratz

Department of Physics Publications

Physical insights into processes governing temporal organization and evolution of cloud fields are of great importance for climate research. Here using large eddy simulations with a bin microphysics scheme, we show that warm convective cloud fields exhibit oscillations with two distinct periods (~10 and ~90 min, for the case studied here). The shorter period dominates the nonprecipitating phase, and the longer period is related to the precipitating phase. We show that rain processes affect the domain's thermodynamics, hence forcing the field into a low‐frequency recharge‐discharge cycle of developing cloudiness followed by precipitation‐driven depletion. The end result of precipitation is stabilization …

The Crust And Upper Mantle Structure Of Central And West Antarctica From Bayesian Inversion Of Rayleigh Wave And Receiver Functions, Weisen Shen, Audrey D. Huerta, J. Paul Winberry

All Faculty Scholarship for the College of the Sciences

We construct a new seismic model for central and West Antarctica by jointly inverting Rayleigh wave phase and group velocities along with P wave receiver functions. Ambient noise tomography exploiting data from more than 200 seismic stations deployed over the past 18 years is used to construct Rayleigh wave phase and group velocity dispersion maps. Comparison between the ambient noise phase velocity maps with those constructed using teleseismic earthquakes confirms the accuracy of both results. These maps, together with P receiver function waveforms, are used to construct a new 3-D shear velocity (Vs) model for the crust and uppermost mantle …

Essays On The Dynamics Of Credit Contracts., Dyotona Dasgupta Dr.

Doctoral Theses

No abstract provided.

Magnetron Deposition Of Yttria-Stabilised Zirconia Electrolyte For Solid Oxide Fuel Cells, A. A. Solovyev, A. V. Shipilova, S. V. Rabotkin, I. V. Ionov, E. A. Smolyanskiy

Eurasian Journal of Physics and Functional Materials

The aim of the article is to review the latest achievements in the field of magnetron deposition of thinfilm yttria-stabilised zirconia (YSZ) electrolyte for solid oxide fuel cells (SOFC). The main attention is paid to the use of magnetron sputtering for formation of YSZ electrolyte up to 10 μm thick on the anode substrates of intermediate-temperature SOFCs operating at a temperature of (600 - 800)°C . The influence of the types of power sources and such deposition parameters as substrate temperature, substrate bias voltage, post-annealing treatment, etc., as well as the morphology of the anode substrate surface on the microstructure …

Metal-Insulator Transitions And Nanoscale Phase Separation In Various Underdoped Cuprates, S. Dzhumanov, U. T. Kurbanov

Eurasian Journal of Physics and Functional Materials

We demonstrate that the unconventional electron-phonon interactions, charge inhomogeneity and charge ordering in underdoped cuprates play an important role in metal-insulator transitions and nanoscale phase separation. In so doing, we argue that charge carriers (i.e. hole polarons) in these systems segregate into insulating (carrier-poor) and metallic/superconducting (carrier-rich) regions as a result of their specific ordering. We show that the metal-insulator transitions, nanoscale phase separation and coexisting insulating and metallic/superconducting phases are manifested in the unusual temperature dependences of the magnetic susceptibility and resistivity and in the suppression of superconductivity in various underdoped cuprates.

Phase Analysis, Thermal And Thermoelectric Properties Of Nanocrystalline Na0.15cu1.85s, Alloys Na0.17cu1.80s, Na0.20cu1.77s, M. Kh. Balapanov, M. M. Kubenova, K. A. Kuterbekov, A. Kozlovskiy, S. N. Nurakov, R. Kh. Ishembetov, R. A. Yakshibaev

Eurasian Journal of Physics and Functional Materials

Synthesis, X-ray phase analysis, electron microscopy and investigations of the thermoelectric and thermal properties of nanocrystalline copper sulfide alloys contained sodium are presented. At room temperature, the alloys are a mixture of three phases of copper sulfide - the monoclinic phase of Na₂Cu₄S₃ , the hexagonal phase of Cu₂S and the cubic phase of Cu₉S₅ (digenite). The predominant phase is Na₂Cu₄S₃ (with content from 57 to 85 volume %). The particle sizes in the compacted samples lie in the range from 20 to 400 nm. …

Structural Evolution Of Ceramic Coatings Produced By Mechanical Alloying Technique, Zh. B. Sagdoldina, B. K. Rakhadilov, O. A. Stepanova, A. Maulit

Eurasian Journal of Physics and Functional Materials

The article researches formation of ceramic coatings of zirconium dioxide (ZrO₂) on the X12CrNi1810Ti steel surface after mechanical alloying. Study of coatings’ surface showed coalescence of defected coating’s particles with created subgrains and this process is more representative due to different toughness of zirconium oxide and steel. It is suggested that adhesive bond between the coating and support structure is provided by strain welding of the powder on the support structure coating. When using X-phase analysis neither diffusive mixing of coating/support structure components or formation of new compounds and phase changes was revealed. Surface contamination of the coating …

Changing The Structure And Phasestates And The Microhardness Of The R6m5 Steel Surface Layer After Electrolytic-Plasma Nitriding, B. K. Rakhadilov, Sh. R. Kurbanbekov, M. K. Kilishkhanov, A. B. Kenesbekov, S. Amanzholov

Eurasian Journal of Physics and Functional Materials

The article examines the changes of the structural-phase states and the microhardness of the R6M5 steel surface layer after electrolytic-plasma nitriding. It is found that after electrolytic-plasma nitriding of the R6M5 steel surface, diffusion layer is formed, which is a nitrogen martensite. The phase composition of the diffusion layer varies depending on the nitriding temperature. An increase of R6M5 steel microhardness, depending on structural-phase state, is found out. The main factor, in fluencing the increase of microhardness of R6M5 high-speed steel with electrolytic-plasma nitriding, is the formation of nitro . gen martensite with monophasic nitride Fe₄N ( γ-phase), …