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2019

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Articles 61 - 90 of 103

Full-Text Articles in Physical Sciences and Mathematics

Data From Analysis Of Mesosphere Secular Trends And Episodic Variability, 9/3/1993 To 8/5/2003, Troy A. Wynn, Vincent B. Wickwar, Joshua P. Herron Feb 2019

Data From Analysis Of Mesosphere Secular Trends And Episodic Variability, 9/3/1993 To 8/5/2003, Troy A. Wynn, Vincent B. Wickwar, Joshua P. Herron

Browse all Datasets

The database examined here covers a time span from September 1993 to August 2003 and an altitude range of 45 to 90 km, and contains 593 nightly temperature profiles. We examine our data for secular warming and cooling and decadal scale (solar cycle) variations by applying three different models to the data.


Cs04all: Cryptography Module, Hunter R. Johnson Feb 2019

Cs04all: Cryptography Module, Hunter R. Johnson

Open Educational Resources

Cryptography module

This archive contains a series of lessons on cryptography suitable for use in a CS0 course. The only requirement is familiarity with Python, particularly dictionaries, lists, and file IO. It is also assumed that students know how to create stand-alone Python programs and interact with them through the terminal. Most of the work is done in Jupyter notebooks.

The material found in the notebooks is a combination of reading material, exercises, activities and assignments. Below are descriptions of each lesson or assignment and links to notebooks on Cocalc. The same files are available for batch download in this …


Cs04all: Command Line Python, Hunter R. Johnson Feb 2019

Cs04all: Command Line Python, Hunter R. Johnson

Open Educational Resources

Command Line Tutorial

Students are presented with information relating to stand alone Python programs, stdin, stdout, and command line arguments. This is a lab exercise. After completion students should be able to create executable Python programs which can accept input from stdin or command line arguments.

Please begin with the READ_ME file.

https://cocalc.com/share/bde99afd-76c8-493d-9608-db9019bcd346/171/stdin?viewer=share/

This OER material was produced as a result of the CS04ALL CUNY OER project


Cs04all: Machine Learning Module, Hunter R. Johnson Feb 2019

Cs04all: Machine Learning Module, Hunter R. Johnson

Open Educational Resources

These are materials that may be used in a CS0 course as a light introduction to machine learning.

The materials are mostly Jupyter notebooks which contain a combination of labwork and lecture notes. There are notebooks on Classification, An Introduction to Numpy, and An Introduction to Pandas.

There are also two assessments that could be assigned to students. One is an essay assignment in which students are asked to read and respond to an article on machine bias. The other is a lab-like exercise in which students use pandas and numpy to extract useful information about subway ridership in NYC. …


Cs04all: Natural Language Processing Project, Hunter R. Johnson Feb 2019

Cs04all: Natural Language Processing Project, Hunter R. Johnson

Open Educational Resources

In this archive there are two activities/assignments suitable for use in a CS0 or Intro course which uses Python.

In the first activity, students are asked to "fill in the code" in a series of short programs that compute a similarity metric (cosine similarity) for text documents. This involves string tokenization, and frequency counting using Python string methods and datatypes.

https://cocalc.com/share/bde99afd-76c8-493d-9608-db9019bcd346/171/Proj1?viewer=share/

In the second activity (taken directly from Think Python 2e) students use a pronunciation dictionary to solve a riddle involving homophones.

https://cocalc.com/share/bde99afd-76c8-493d-9608-db9019bcd346/171/Dicts2?viewer=share/

This OER material was produced as a result of the CS04ALL CUNY OER project


Cs04all: List Comprehensions, Hunter R. Johnson Feb 2019

Cs04all: List Comprehensions, Hunter R. Johnson

Open Educational Resources

List Comprehensions

This is a tutorial on list comprehensions in Python, suitable for use in an Intro or CS0 course. We also briefly mention set comprehensions and dictionary comprehensions.

https://cocalc.com/share/bde99afd-76c8-493d-9608-db9019bcd346/171/list_comprehensions?viewer=share/

This OER material was produced as a result of the CS04ALL CUNY OER project


Tubex Data, Sanaz Esmaeili Jan 2019

Tubex Data, Sanaz Esmaeili

School of Geosciences Student Publications

No abstract provided.


Northeastern China 4.2ka Database, Louis A. Scuderi, Xiaoping Yamg, Samantha Ascoli, Hongwei Li Jan 2019

Northeastern China 4.2ka Database, Louis A. Scuderi, Xiaoping Yamg, Samantha Ascoli, Hongwei Li

Paleoclimate Datasets

The Hunshandake Sandy Lands of northeastern China, currently a semiarid lightly vegetated region, were characterized by perennial lakes and forest stands in the early and middle Holocene. Well-developed dark grassland-type paleosols (mollisols) at the southern edge of the Hunshandake OSL-dated to between 6.93 +0.61 and 4.27 +0.38 ka along with lacustrine sands at higher elevations that date to between 5.7 +0.3 and 5.2 +0.2 ka and thick gray lacustrine sediments suggest a wetter climate. Between 4.2 and 3.8 ka, the region experienced extreme drying that was exacerbated by lake overflow drainage and sapping that depleted the groundwater table. The region …


Dataset 1: Mobile Text Dataset, Keith Vertanen, Per Ola Kristensson Jan 2019

Dataset 1: Mobile Text Dataset, Keith Vertanen, Per Ola Kristensson

Mobile Text Dataset and Language Models

This zip file contains the sentences mined from public web forums and blogs. Additional details about the dataset:

  • The data is split into training, development, and test sets based on the original domain name the text was mined from.
  • The sent_*.txt files are tab-delimited and contain one sentence parsed from a particular post. Each line contains the device name, forum software, device form factor (tablet or phone), and device input (touch or touch+key) associated with the post it was obtained from.
  • The set's subdirectory contains the groupings used in Section 2.
  • 64K word list (used in the paper), 5K and …


Investigating Speech Recognition For Improving Predictive Aac, Keith Vertanen Jan 2019

Investigating Speech Recognition For Improving Predictive Aac, Keith Vertanen

Data Files

This data was used in support of the following paper:

Adhikary, J., Watling, R., Fletcher, C., Stanage, A., & Vertanen, K. (2019). Investigating Speech Recognition for Improving Predictive AAC. SLPAT '19: Proceedings of the Workshop on Speech and Language Processing for Assistive Technologies. 37-43. Minneapolis, MN. https://digitalcommons.mtu.edu/cs_fp/16


Data Contributing To Zuidema Et Al., 2019: "Is Summer African Dust Arriving Earlier At Barbados? The Updated Long-Term In-Situ Dust Mass Concentration Time Series From Ragged Point, Barbados And Miami, Florida”, Bulletin Of The American Meteorological Society., Paquita Zuidema Jan 2019

Data Contributing To Zuidema Et Al., 2019: "Is Summer African Dust Arriving Earlier At Barbados? The Updated Long-Term In-Situ Dust Mass Concentration Time Series From Ragged Point, Barbados And Miami, Florida”, Bulletin Of The American Meteorological Society., Paquita Zuidema

Supplementary Data and Tools

Daily-resolved time series of surface dust mass concentrations gathered at the Rosenstiel School of Marine and Atmospheric Science in Miami, Florida from 1974 through December, 2018, and at Ragged Point, Barbados, from 193 through December, 2014, and primarily May-October of 2015-2018. The data were extracted from Whatman-41 filters sampling under pumped high-flow conditions. A fuller description of the sampling, data collection and analysis procedures can be found in Zuidema et al., 2019, Bulletin of the American Meteorological Society (https://doi.org/10.1175/BAMS-D-18-0083.1). The data are available as separate files for Miami and Barbados, in both Excel and netcdf format.


North Atlantic Observed Climatological Mean Absolute Geostrophic Velocity Profiles, Tiago Carrilho Biló Jan 2019

North Atlantic Observed Climatological Mean Absolute Geostrophic Velocity Profiles, Tiago Carrilho Biló

Supplementary Data and Tools

North Atlantic observed climatological mean absolute geostrophic velocity components in meters per second from near the surface (pressure = 2.5 dbar) to near ocean bottom (pressure = 5562.0 dbar). The absolute velocity fields in the upper 2000 dbar of the water column were obtained by referencing an ARGO based mean geostrophic shear with mean velocity estimates at 1000 dbar between 2004-2016. The shear was derived using the so-called Roemmich-Gilson Argo climatology (Roemmich & Gilson, 2009). The referencing procedure was conducted using Argo displacement data referred to as YoMaHa'07 (Lebedev et al., 2007). For regions deeper than 2000 dbar, the velocity …


Temporal And Spatial Scaling Of Dissipation Under Non-Breaking Surface Waves, Mingming Shao, Brian K. Haus, Darek Bogucki, Mohammad Barzegar Jan 2019

Temporal And Spatial Scaling Of Dissipation Under Non-Breaking Surface Waves, Mingming Shao, Brian K. Haus, Darek Bogucki, Mohammad Barzegar

Supplementary Data and Tools

This dataset is associated to the NSF OCE/Physical Oceanography funded project “Laboratory Investigation of Turbulence Generation by Surface Waves”. There are three papers in preparation that will refer to data contained within this archive. The overarching goal of this project was to address a significant knowledge gap regarding the turbulent dissipation of non-breaking surface waves. To accomplish this, a comprehensive study in the SUrge-STructure-Atmosphere-INteraction (SUSTAIN) wind-wave laboratory at the University of Miami was conducted. A combination of established measurement approaches (Particle Image Velocimetry (PIV) and Vertical Microstructure Profiler (VMP)) and new technologies (Optical Turbulence Sensor (OTS)) have been used carry …


Spray Concentration Measurements From Asist For Freshwater And Seawater, Sanchit Mehta, David G. Ortiz-Suslow, Andrew W. Smith, Brian K. Haus Jan 2019

Spray Concentration Measurements From Asist For Freshwater And Seawater, Sanchit Mehta, David G. Ortiz-Suslow, Andrew W. Smith, Brian K. Haus

Supplementary Data and Tools

The size-dependent vertical distribution of spume particles in high wind conditions is necessary to understand their effect on air-sea fluxes of heat and momentum. The predominant focus of previous studies of spray dynamics has been on the marine environment. Spray dynamics in non-seawater bodies have not been extensively studied, and any significant differences between sea and freshwater remain unquantified. To address this gap, we have conducted the first laboratory experiment directly comparing spume concentrations above fresh and real seawater for 10-m equivalent wind speeds of 36-54 m/s. Droplets in the air above the intensely breaking wind-waves were directly observed and …


Mid-Infrared Optical Constants Of Labradorite, A Triclinic Plagioclase Mineral, Cheng Ye, Melinda J. Rucks, Jessica A. Arnold, Timothy D. Glotch Jan 2019

Mid-Infrared Optical Constants Of Labradorite, A Triclinic Plagioclase Mineral, Cheng Ye, Melinda J. Rucks, Jessica A. Arnold, Timothy D. Glotch

Geosciences Research Data

Plagioclase feldspar is the most abundant rock-forming mineral in the crust of the Earth, Moon, and Mars, and is also an important component in some minor bodies in the Solar System. The distribution, abundance, and precise composition of plagioclase on planetary surfaces from remote sensing data is an important tool for evaluating changing conditions during magma evolution. Optical constants are critical input parameters in radiative transfer theory, which enables modeling of spectra for the extraction of mineral abundances and grain sizes from a remotely sensed spectrum. Mid-infrared (MIR) optical constants of most triclinic rock-forming minerals are not available due to …


Simulating Storm Surge And Compound Flooding Events With A Creek-To-Ocean Model: Importance Of Baroclinic Effects : Model Files, Fei Ye, Yinglong J. Zhang, Haocheng Yu, Weiling Sun, Saeed Moghimi, Edward Myers, Karinna Nunez, Ruoyin Zhang, Harry V. Wang, Aron Roland, Kevin Martins, Xavier Bertin, Jiabi Du, Zhou Liu Jan 2019

Simulating Storm Surge And Compound Flooding Events With A Creek-To-Ocean Model: Importance Of Baroclinic Effects : Model Files, Fei Ye, Yinglong J. Zhang, Haocheng Yu, Weiling Sun, Saeed Moghimi, Edward Myers, Karinna Nunez, Ruoyin Zhang, Harry V. Wang, Aron Roland, Kevin Martins, Xavier Bertin, Jiabi Du, Zhou Liu

Data

The supplemental material contains the input files for setting up a 3D baroclinic model based on the Semi-implicit Cross-scale Hydroscience Integrated System Model (SCHISM), supplementing the description of model setup in Ye et al. (2019; associated publication).

The SCHISM version used for the simulation was r5082 in the SCHISM svn repository. A compressed file (setup.tar.gz) is provided, which can be extracted with common zip/unzip software on Unix/Windows/Mac (such as gzip, winzip, 7-zip, etc.). Since the dataset is intended for conducting a SCHISM simulation, readers/users should familiarize themselves with the SCHISM model system first.

The SCHISM manual is at: http://ccrm.vims.edu/schismweb/schism_manual.html; …


Python String, Natalia Novak Jan 2019

Python String, Natalia Novak

Open Educational Resources

An introduction to Python strings and string formatting.

Proposed lecture slides are supplied with in-class activity, homework assignment, and assessment.

No loops, no decision structures.

For CS0 students.

Part of the CUNY CS04All project.


Existence Of A Highest Wave In A Fully Dispersive Two-Way Shallow Water Model, Kyle Claassen, Matthew Johnson, Mats Ehrnstrom Jan 2019

Existence Of A Highest Wave In A Fully Dispersive Two-Way Shallow Water Model, Kyle Claassen, Matthew Johnson, Mats Ehrnstrom

Faculty Publications - Mathematics

No abstract provided.


On The Fourth Order Schrodinger Equation In Four Dimensions: Dispersive Estimates And Zero Energy Resonances, William Green, Ebru Toprak Jan 2019

On The Fourth Order Schrodinger Equation In Four Dimensions: Dispersive Estimates And Zero Energy Resonances, William Green, Ebru Toprak

Faculty Publications - Mathematics

No abstract provided.


Nondegeneracy And Stability Of Antiperiodic Bound States For Fractional Nonlinear Schrodinger Equations, Kyle Claassen, Matthew Johnson Jan 2019

Nondegeneracy And Stability Of Antiperiodic Bound States For Fractional Nonlinear Schrodinger Equations, Kyle Claassen, Matthew Johnson

Faculty Publications - Mathematics

No abstract provided.


Solving Systems Of Differential Equations In The Case Of A Defective Coefficient Matrix, William Green, Sylvia Carlisle Jan 2019

Solving Systems Of Differential Equations In The Case Of A Defective Coefficient Matrix, William Green, Sylvia Carlisle

Faculty Publications - Mathematics

No abstract provided.


Mink Frog (Lithobates Septentrionalis), Jennifer Smetzer, Toni Lyn Morelli Jan 2019

Mink Frog (Lithobates Septentrionalis), Jennifer Smetzer, Toni Lyn Morelli

Second Century Stewardship Refugia Products

No abstract provided.


Northern White Cedar (Thuja Occidentalis), Matthew J. Duveneck, Jonathan R. Thompson, Jennifer Smetzer Jan 2019

Northern White Cedar (Thuja Occidentalis), Matthew J. Duveneck, Jonathan R. Thompson, Jennifer Smetzer

Duveneck & Thompson Tree Refugia Products

No abstract provided.


Balsam Fir (Abies Balsamea), Matthew J. Duveneck, Jonathan R. Thompson, Jennifer Smetzer Jan 2019

Balsam Fir (Abies Balsamea), Matthew J. Duveneck, Jonathan R. Thompson, Jennifer Smetzer

Duveneck & Thompson Tree Refugia Products

No abstract provided.


Paper Birch (Betula Papyrifera), Matthew J. Duveneck, Jonathan R. Thompson, Jennifer Smetzer Jan 2019

Paper Birch (Betula Papyrifera), Matthew J. Duveneck, Jonathan R. Thompson, Jennifer Smetzer

Duveneck & Thompson Tree Refugia Products

No abstract provided.


Red Spruce (Picea Rubens), Matthew J. Duveneck, Jonathan R. Thompson, Jennifer Smetzer Jan 2019

Red Spruce (Picea Rubens), Matthew J. Duveneck, Jonathan R. Thompson, Jennifer Smetzer

Duveneck & Thompson Tree Refugia Products

No abstract provided.


2d Ion Temperature Maps From Twins Ena Data: Idl Scripts, Amy Keesee, Earl Scime, Anna Zaniewski, Roxanne Katus Jan 2019

2d Ion Temperature Maps From Twins Ena Data: Idl Scripts, Amy Keesee, Earl Scime, Anna Zaniewski, Roxanne Katus

Physics & Astronomy

Energetic neutral atom (ENA) flux from the NASA TWINS mission (and previously the MENA instrument on the NASA IMAGE mission) is projected along the line of sight to the equatorial plane in GSM coordinates. A Maxwellian fit is used to calculate the ion temperature in each equatorial plane bin, creating 2D maps of ion temperatures. The files are IDL .pro scripts that can be read using a text editor. IDL software is required to run. The primary script is twins_master.pro. The scripts call other scripts that were developed by the TWINS mission team as well as publicly available IDL libraries …


Gis Data: King & Queen County Tidal Marsh Inventory, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie G. Bradshaw, Carl Hershner, Evan Hill Jan 2019

Gis Data: King & Queen County Tidal Marsh Inventory, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie G. Bradshaw, Carl Hershner, Evan Hill

Data

The Virginia Institute of Marine Science published the first Tidal marsh Inventories using data collected in the early 1970's. Using high resolution color infra-red imagery from 2009 a new Tidal Marsh Inventory has been developed for the York River Watershed in 2010. Marsh boundaries were generated using heads-up digitizing techniques at a scale of 1:1,000. Each marsh polygon was classified by morphologic type: fringe, extensive, embayed, or marsh island. Marshes were ground-truthed in the field where a community type index was assigned to each marsh based on plant community make-up. Each marsh was also coded with a marsh number which …


Gis Data: King William County Tidal Marsh Inventory, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie G. Bradshaw, Carl Hershner, Evan Hill Jan 2019

Gis Data: King William County Tidal Marsh Inventory, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie G. Bradshaw, Carl Hershner, Evan Hill

Data

The Virginia Institute of Marine Science published the first Tidal marsh Inventories using data collected in the early 1970's. Using high resolution color infra-red imagery from 2009 a new Tidal Marsh Inventory has been developed for the York River Watershed in 2010. Marsh boundaries were generated using heads-up digitizing techniques at a scale of 1:1,000. Each marsh polygon was classified by morphologic type: fringe, extensive, embayed, or marsh island. Marshes were ground-truthed in the field where a community type index was assigned to each marsh based on plant community make-up. Each marsh was also coded with a marsh number which …


King William County, Virginia Shoreline Inventory Data 2019, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie Bradshaw, Jessica Hendricks, Carl Hershner, Evan Hill Jan 2019

King William County, Virginia Shoreline Inventory Data 2019, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie Bradshaw, Jessica Hendricks, Carl Hershner, Evan Hill

Data

The 2019 Inventory for King William County was generated using on-screen, digitizing techniques in ArcGIS® -ArcMap v10.4.1 while viewing conditions observed in 2017 imagery from the Virginia Base Mapping Program (VBMP), Google Earth, and Bing high resolution oblique imagery. Five GIS shapefiles are developed. The first describes land use and bank conditions (KingWilliam_lubc_2019). The second portrays the presence of beaches (KingWilliam_beach_2019). The third reports shoreline structures that are described as arcs or lines (e.g. riprap) (KingWilliam_sstru_2019). The fourth shapefile includes all structures that are represented as points (e.g. piers) (KingWilliam_astru_2019). The Tidal Marsh Inventory is included as the fifth file …