Works (35)

Updated: June 18th, 2024 05:03

2024 journal article

A coupled approach of spatial dielectric mapping and unsupervised machine learning for damage detection and severity segmentation in polymer matrix composites

NDT & E INTERNATIONAL, 145.

By: R. Guha, K. Berkowitz & L. Grace

Source: Web Of Science
Added: June 17, 2024

2023 article

Consequences of Humidity Cycling on the Moisture Absorption Characteristics of Epoxy Resins with Different Network Architectures

Guha, R. D., Danilov, E. O., Berkowitz, K., Oluwajire, O., & Grace, L. R. (2023, January 3). ACS APPLIED POLYMER MATERIALS, Vol. 1.

By: R. Guha n, E. Danilov n, K. Berkowitz n, O. Oluwajire n & L. Grace n

author keywords: epoxy; moisture; humidity; infrared spectroscopy; dielectric properties
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: January 4, 2023

2023 journal article

Suppressing Hydrogen Evolution in Aqueous Lithium-Ion Batteries with Double-Site Hydrogen Bonding

ACS APPLIED POLYMER MATERIALS, 5(1), 400–411.

By: R. Guha, E. Danilov, K. Berkowitz, O. Oluwajire & L. Grace

author keywords: epoxy; moisture; humidity; infrared spectroscopy; dielectric properties
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: February 20, 2023

2022 journal article

Evaluating machine learning classifiers for glaucoma referral decision support in primary care settings

SCIENTIFIC REPORTS, 12(1).

By: O. Kaskar n, E. Wells-Gray, D. Fleischman* & L. Grace n

MeSH headings : Algorithms; Artificial Intelligence; Glaucoma / diagnosis; Humans; Machine Learning; Primary Health Care; Referral and Consultation
TL;DR: Predictive classifiers using primarily non-ocular features have the potential to be used for identifying suspected glaucoma in non-eye care settings, including primary care and further research into finding additional features that improve the performance of predictive classifiers is warranted. (via Semantic Scholar)
Source: Web Of Science
Added: May 31, 2022

2022 journal article

Nondestructive examination of polymer composites by analysis of polymer-water interactions and damage-dependent hysteresis

COMPOSITE STRUCTURES, 287.

By: O. Idolor n, K. Berkowitz n, R. Guha n & L. Grace n

author keywords: Nondestructive examination; Polymer matrix composites; Moisture diffusion; Dielectric properties; Machine learning; Hysteresis
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: April 4, 2022

2022 journal article

Temporal evolution of the behavior of absorbed moisture in a damaged polymer-quartz composite: A molecular dynamics study

COMPUTATIONAL MATERIALS SCIENCE, 214.

By: R. Guha*, F. Rahmani*, K. Berkowitz, M. Pasquinelli* & L. Grace*

author keywords: Composites; Fiber -matrix interface; Moisture; Debonding; Molecular dynamics
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: October 11, 2022

2021 article

A Human Factors Evaluation of a Screening System for Diabetic Retinopathy Centered in Psychological Theory

Casimir, A. T., Pavone, A. M., Faircloth, A., Khan, A., Khawaja, O., Grace, L., … McLaughlin, A. C. (2021, August 27). ERGONOMICS IN DESIGN.

By: A. Casimir, A. Pavone, A. Faircloth, A. Khan, O. Khawaja, L. Grace*, S. Fransen, A. McLaughlin*

author keywords: medical device; theory of planned behavior; medical systems; diabetic retinopathy
TL;DR: Interventions addressed the system of screening, from the patients and their choices to clinic workers, device usability, and the clinic environment, and showed potential solutions to the screening issue situated within the theory of planned behavior. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: September 7, 2021

2021 journal article

An experimental study of the dynamic molecular state of transient moisture in damaged polymer composites

POLYMER COMPOSITES, 42(7), 3391–3403.

By: O. Idolor n, R. Guha n, K. Berkowitz n & L. Grace n

author keywords: composites; damage zone; dielectric properties; moisture diffusion
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: April 17, 2021

2021 journal article

Exploring secondary interactions and the role of temperature in moisture-contaminated polymer networks through molecular simulations

SOFT MATTER, 17(10), 2942–2956.

By: R. Guha n, O. Idolor n, K. Berkowitz n, M. Pasquinelli n & L. Grace n

TL;DR: A clear atomistic scale picture is aimed of the interactions which drive the dielectric signature variations necessary for tracking damage in a composite epoxy matrix. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: February 18, 2021

2021 article

Exploring secondary interactions and the role of temperature in moisture-contaminated polymer networks through molecular simulations (vol 17, pg 2942, 2021)

Guha, R. D., Idolor, O., Berkowitz, K., Pasquinelli, M., & Grace, L. R. (2021, May 28). SOFT MATTER, Vol. 5.

By: R. Guha n, O. Idolor n, K. Berkowitz n, M. Pasquinelli n & L. Grace n

TL;DR: The results obtained imply that the polyene-like structure dominates in the liquid phase while in the solid phase the polymethine-like structures are more likely to be affected by the temperature. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: June 10, 2021

2021 article

Inkjet Printed Textile Force Sensitive Resistors for Wearable and Healthcare Devices

Ju, B., Kim, I., Li, B. M., Knowles, C. G., Mills, A., Grace, L., & Jur, J. S. (2021, July 1). ADVANCED HEALTHCARE MATERIALS, Vol. 7.

By: B. Ju n, I. Kim n, B. Li n, C. Knowles n, A. Mills n, L. Grace n, J. Jur n

author keywords: E-textiles; flexible electronics; force sensitive resistors; inkjet printing; piezoresistive sensors; wearable healthcare devices
MeSH headings : Delivery of Health Care; Electric Conductivity; Electrodes; Humans; Textiles; Wearable Electronic Devices
TL;DR: This work presents a novel technique for developing textile FSRs (TFSRs) using a combination of inkjet printing of metal‐organic decomposition silver inks and heat pressing for facile integration into textiles. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, ORCID
Added: July 12, 2021

2021 journal article

Polymer-water interactions and damage detection in polymer matrix composites

COMPOSITES PART B-ENGINEERING, 211.

By: O. Idolor n, R. Guha n, K. Berkowitz n, C. Geiger n, M. Davenport n & L. Grace n

author keywords: Polymer matrix composites (PMCs); Laminates; Defects; Non-destructive testing; Near-infrared spectroscopy
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: January 20, 2021

2020 journal article

An atomistic simulation study investigating the effect of varying network structure and polarity in a moisture contaminated epoxy network

COMPUTATIONAL MATERIALS SCIENCE, 179.

By: R. Guha n, O. Idolor n & L. Grace n

author keywords: Epoxy; Crosslinking; Polarity; MAPS; Free-volume; Hydrogen bonding
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: May 26, 2020

2020 journal article

Automated Noncontact Facial Topography Mapping, 3-Dimensional Printing, and Silicone Casting of Orbital Prosthesis

AMERICAN JOURNAL OF OPHTHALMOLOGY, 220, 27–36.

By: E. Weisson*, M. Fittipaldi*, C. Concepcion*, D. Pelaez*, L. Grace n & D. Tse*

MeSH headings : Adult; Computer-Aided Design; Female; Humans; Imaging, Three-Dimensional / methods; Male; Middle Aged; Orbital Implants; Printing, Three-Dimensional; Prosthesis Design; Reproducibility of Results; Retrospective Studies; Silicone Elastomers; Topography, Medical / methods
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: January 11, 2021

2019 journal article

A Novel Porcine Model for the Study of Cerebrospinal Fluid Dynamics: Development and Preliminary Results

FRONTIERS IN NEUROLOGY, 10.

By: D. Fleischman*, O. Kaskar n, R. Shams*, X. Zhang*, D. Olson*, C. Zdanski*, B. Thorp*, A. Kuznetsov, L. Grace n, Y. Lee*

author keywords: CSF; CSF pressure; optic canal; glaucoma; papilledema; space-flight associated neuro-ocular syndrome
TL;DR: To investigate CSF flow within the orbit, a model for CSF dynamics was created using three medium-sized pigs and head tilting was performed to highlight the role of gravitational dependence within the subarachnoid space. (via Semantic Scholar)
Source: Web Of Science
Added: November 18, 2019

2019 journal article

Identifying the Critical Factors Governing Translaminar Pressure Differential Through a Compartmental Model

INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 60(8), 3204–3214.

By: O. Kaskar n, D. Fleischman*, Y. Lee*, B. Thorp*, A. Kuznetsov & L. Grace n

author keywords: CSF dynamics; translaminar pressure gradient; glaucoma; numerical modeling; optic nerve SAS
MeSH headings : Glaucoma / complications; Glaucoma / diagnosis; Glaucoma / physiopathology; Humans; Intracranial Pressure / physiology; Intraocular Pressure / physiology; Optic Nerve Diseases / diagnosis; Optic Nerve Diseases / etiology; Optic Nerve Diseases / physiopathology; Subarachnoid Space / diagnostic imaging; Subarachnoid Space / physiopathology; Tonometry, Ocular
Source: Web Of Science
Added: August 19, 2019

2019 journal article

Temperature and anisotropy effects in the application of the hindered diffusion model to composite laminates

JOURNAL OF REINFORCED PLASTICS AND COMPOSITES, 38(13), 628–639.

By: L. Rodriguez*, A. Damley-Strnad* & L. Grace n

author keywords: Hygrothermal; diffusion; temperature effects; moisture; bismaleimide; anisotropy
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: July 8, 2019

2018 journal article

Design and processing of an elastomeric nanocomposite for biomedical pressure sensing applications

MATERIALS TODAY COMMUNICATIONS, 17, 278–288.

By: B. Morales*, O. Kaskar n & L. Grace n

author keywords: Taguchi; SIBS; Nanocomposite; Elastomer; Pressure sensing; Carbon black
TL;DR: Analysis indicates that mechanical strength is highly dependent on CB content and dispersion (mixing time), whereas pressure-dependent electrical resistance ishighly dependent onCB content and casting temperature. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: January 7, 2019

2018 journal article

Long-term durability of a water-contaminated quartz-reinforced bismaleimide laminate

POLYMER COMPOSITES, 39(8), 2643–2649.

By: L. Rodriguez*, C. Garcia* & L. Grace n

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: October 16, 2018

2018 journal article

Modeling the effects of lipid contamination in poly(styrene-isobutylene-styrene) (SIBS)

JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, 80, 97–103.

By: M. Fittipaldi* & L. Grace n

author keywords: Biocompatibility; Lipids; Degradation; Plasticization; Swelling
MeSH headings : Alkenes; Biocompatible Materials; Diffusion; Finite Element Analysis; Lipids; Models, Theoretical; Polymers; Styrenes
TL;DR: A novel method to calculate swelling coefficient effectively circumvents the inability of commonly-used thermal deswelling methods to characterize lipid and oil-induced swelling behavior; enabling better prediction of long-term in vivo performance of polymer-based biomedical devices and more accurate evaluation of lipid-induced degradation and swelling. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2017 journal article

Lipid-induced degradation in biocompatible poly(Styrene-Isobutylene-Styrene) (SIBS) thermoplastic elastomer

JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, 68, 80–87.

By: M. Fittipaldi* & L. Grace n

author keywords: Biocompatible; Lipids; Degradation; Relaxation; Polymer; Diffusion
MeSH headings : Biocompatible Materials / chemistry; Elastomers / chemistry; Lipids / chemistry; Materials Testing; Styrenes / chemistry
TL;DR: A decrease in tensile strength, loss of dynamic creep performance and faster relaxation with increasing lipid content is attributed to strong internal straining, suggesting that selection of these variables during the design phase should be based not only on the mechanical requirements of the application, but the expected degree of lipid exposure. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2017 conference paper

The effect of lipid absorption on the mechanical properties of poly(styrene-block-isobutylene-block-styrene) for use in biomedical applications

Presented at the PROCEEDINGS OF PPS-32: The 32nd International Conference of the Polymer Processing Society - Conference Papers.

By: A. Damley-Strnad*, M. Fittipaldi*, B. Morales* & L. Grace*

Event: PROCEEDINGS OF PPS-32: The 32nd International Conference of the Polymer Processing Society - Conference Papers

author keywords: SIBS; Lipid Absorption; Tensile Strength; Bio-degradation
Source: Crossref
Added: February 24, 2020

2016 journal article

Lipid diffusion and swelling in a phase separated biocompatible thermoplastic elastomer

Journal of the Mechanical Behavior of Biomedical Materials, 64, 1–9.

By: M. Fittipaldi* & L. Grace*

author keywords: SIBS; Lipids; Plasticization; Gravimetric; Diffusion
MeSH headings : Biocompatible Materials / chemistry; Diffusion; Elastomers / chemistry; Lipids / chemistry; Molecular Weight; Polystyrenes / chemistry
TL;DR: The predictive model of lipid uptake introduced here will allow more accurate evaluation of lipid susceptibility during the preliminary design phase of SIBS-based in vivo structures. (via Semantic Scholar)
Source: Crossref
Added: February 24, 2020

2016 conference paper

Optimization of injection molding parameters for poly(styrene-isobutylene-styrene) block copolymer

Presented at the PROCEEDINGS OF PPS-31: The 31st International Conference of the Polymer Processing Society – Conference Papers.

By: M. Fittipaldi*, C. Garcia*, L. Rodriguez* & L. Grace*

Event: PROCEEDINGS OF PPS-31: The 31st International Conference of the Polymer Processing Society – Conference Papers

author keywords: Taguchi Method; Response Surface Methodology; SIBS; Injection Molding Opthnization
Source: Crossref
Added: February 24, 2020

2016 journal article

Projecting long-term non-Fickian diffusion behavior in polymeric composites based on short-term data: a 5-year validation study

Journal of Materials Science, 51(2), 845–853.

By: L. Grace*

author keywords: Moisture absorption; Hindered diffusion; Bismaleimide; Laminate
Source: Crossref
Added: January 5, 2021

2016 conference paper

Reversible dielectric property degradation in moisture-contaminated fiber-reinforced laminates

Presented at the PROCEEDINGS OF PPS-31: The 31st International Conference of the Polymer Processing Society – Conference Papers.

By: L. Rodriguez*, C. García*, M. Fittipaldi* & L. Grace*

Event: PROCEEDINGS OF PPS-31: The 31st International Conference of the Polymer Processing Society – Conference Papers

author keywords: Dielectric constant; Loss Tangent
Source: Crossref
Added: February 24, 2020

2015 conference paper

Effect of nanoclay reinforcement on the X-band dielectric properties of epoxy resins for use in radome applications

Presented at the PROCEEDINGS OF PPS-30: The 30th International Conference of the Polymer Processing Society – Conference Papers.

By: C. Garcia, M. Fittipaldi & L. Grace*

Event: PROCEEDINGS OF PPS-30: The 30th International Conference of the Polymer Processing Society – Conference Papers

author keywords: dielectric; epoxy; nanocomposites
Source: Crossref
Added: February 24, 2020

2015 journal article

Epoxy/montmorillonite nanocomposites for improving aircraft radome longevity

Journal of Applied Polymer Science, 132(43), n/a-n/a.

By: C. García*, M. Fittipaldi* & L. Grace*

author keywords: composites; degradation; dielectric properties; nanoparticles; nanowires and nanocrystals
Source: Crossref
Added: February 24, 2020

2015 journal article

Improving tensile strength of an injection-molded biocompatible thermoplastic elastomer

Materials & Design, 86, 6–13.

By: M. Fittipaldi*, L. Rodriguez*, A. Damley-Strnad* & L. Grace*

author keywords: SIBS; Injection molding optimization; Taguchi; RSM; ANN
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Crossref
Added: February 24, 2020

2015 conference paper

The effect of in-service aerospace contaminants on X-band dielectric properties of a bismaleimide/quartz composite

Presented at the PROCEEDINGS OF PPS-30: The 30th International Conference of the Polymer Processing Society – Conference Papers.

By: L. Rodriguez*, C. García* & L. Grace*

Event: PROCEEDINGS OF PPS-30: The 30th International Conference of the Polymer Processing Society – Conference Papers

author keywords: Bismaleimide; Relative Permittivity; Loss Tangent; Contaminant
Source: Crossref
Added: February 24, 2020

2015 journal article

The effect of moisture contamination on the relative permittivity of polymeric composite radar-protecting structures at X-band

Composite Structures, 128, 305–312.

By: L. Grace*

author keywords: Environmental degradation; Moisture; Relative permittivity; Radar; Radome
Source: Crossref
Added: January 5, 2021

2015 conference paper

The effect of water absorption on the viscoelastic properties of poly(styrene-block-isobutylene-block-styrene) for use in biomedical applications

Presented at the PROCEEDINGS OF PPS-30: The 30th International Conference of the Polymer Processing Society – Conference Papers.

By: M. Fittipaldi*, L. Rodriguez* & L. Grace*

Event: PROCEEDINGS OF PPS-30: The 30th International Conference of the Polymer Processing Society – Conference Papers

author keywords: SIBS; Plasticization; Biopolymers
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Crossref
Added: February 24, 2020

2014 journal article

Three-dimensional anisotropic moisture absorption in quartz-reinforced bismaleimide laminates

Polymer Engineering & Science, 54(1), 137–146.

By: L. Grace* & M. Altan*

Source: Crossref
Added: January 5, 2021

2013 journal article

Non-fickian three-dimensional hindered moisture absorption in polymeric composites: Model development and validation

Polymer Composites, 34(7), 1144–1157.

By: L. Grace* & M. Altan*

Source: Crossref
Added: August 28, 2020

2012 journal article

Characterization of anisotropic moisture absorption in polymeric composites using hindered diffusion model

Composites Part A: Applied Science and Manufacturing, 43(8), 1187–1196.

By: L. Grace* & M. Altan*

author keywords: Anisotropy; Analytical modeling; Moisture absorption
Source: Crossref
Added: August 28, 2020

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