cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.pbmdss
title: Occurrence Download

description: A dataset containing 17 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Lepisanthes sambiranensis Buerki, Callm. & Lowry"
 ]
}

 The dataset includes 17 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044286-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.dchr86
title: Occurrence Download

description: A dataset containing 1243 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Lophiolepis decussata (Janka) Del Guacchio, Bures, Iamonico & P.Caputo"
 ]
}

 The dataset includes 1243 records from 39 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044287-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.d4wkg7
title: Occurrence Download

description: A dataset containing 10 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Litsea imbricata Guillaumin"
 ]
}

 The dataset includes 10 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044288-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.gn45ss
title: Occurrence Download

description: A dataset containing 814 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Leucadendron coniferum (Thunb.) Meisn."
 ]
}

 The dataset includes 814 records from 22 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044289-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.wgw8ju
title: Occurrence Download

description: A dataset containing 548 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Limonium angustebracteatum Erben"
 ]
}

 The dataset includes 548 records from 25 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044290-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.4r2rks
title: Occurrence Download

description: A dataset containing 2364 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Lepisanthes senegalensis (Poir.) Leenh."
 ]
}

 The dataset includes 2364 records from 132 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044291-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.4a67jy
title: Occurrence Download

description: A dataset listing the 116 species recorded in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-86.78876 21.14489,-86.7876 21.14651,-86.78873 21.14737,-86.79007 21.14795,-86.79295 21.15092,-86.7948 21.15178,-86.79973 21.15734,-86.80099 21.16102,-86.80364 21.16877,-86.80652 21.17968,-86.8066 21.18549,-86.80622 21.1901,-86.80501 21.19406,-86.80482 21.19878,-86.80457 21.20379,-86.80306 21.2086,-86.82957 21.21218,-86.85749 21.23255,-87.18078 21.06076,-87.15425 21.01059,-87.18611 20.99453,-87.19695 20.99053,-87.2125 20.98473,-87.2055 20.98355,-87.19782 20.98299,-87.19593 20.98211,-87.19514 20.9814,-87.19425 20.98092,-87.15856 20.96423,-87.14282 20.94613,-87.09274 20.89017,-87.08074 20.87682,-87.07193 20.86722,-87.07037 20.86547,-87.06866 20.86474,-87.06219 20.86419,-87.05627 20.86371,-87.04994 20.86156,-87.04151 20.86278,-87.02363 20.86085,-87.00398 20.85952,-86.98249 20.85834,-86.93689 20.85468,-86.9139 20.85338,-86.90353 20.84611,-86.89834 20.85546,-86.87464 20.84577,-86.87316 20.85061,-86.87056 20.85961,-86.86464 20.87069,-86.86351 20.88004,-86.86047 20.891,-86.85134 20.89791,-86.84699 20.90278,-86.8448 20.92051,-86.83595 20.92814,-86.83663 20.95484,-86.82914 20.96564,-86.82846 20.97645,-86.82404 20.99755,-86.81068 21.02892,-86.80137 21.03422,-86.79206 21.03497,-86.78841 21.03081,-86.78031 21.03081,-86.77707 21.03459,-86.78031 21.03837,-86.78274 21.05136,-86.76737 21.09002,-86.74933 21.12681,-86.73529 21.13616,-86.74866 21.14052,-86.75802 21.13741,-86.7647 21.13803,-86.7794 21.14613,-86.78876 21.14489))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Mammalia"
 ]
}

 The dataset's 116 records were derived from 23 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044268-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5066/p9kgkwnl
title: Controlled source audio-frequency magnetotellurics (CSAMT) data from the Big Chino Wash and Paulden areas, Yavapai County, Arizona
DOI: 10.5281/zenodo.2213618
title: Use of Nanoclays as Alternatives of Polymers Toward Improving Performance of Asphalt Binders

description: Corresponding data set for Tran-SET Project No. 17BASU01. Abstract of the final report is stated below for reference: "The main goal of this study is to assess the feasibility of the use of nanoclay as an alternative to commonly used polymers such as styrene-butadiene-styrene (SBS), which are used to modify the performance grade (PG) of asphalt binders. Three types of nanoclay and two types of neat binders were selected for laboratory investigation. Different amounts (1, 2, and 3%) of nanoclays were used. A blending protocol has been developed to mix the nanoclay with the asphalt binder. Rotational Viscosity (RV), Dynamic Shear Rheometer (DSR), Optical Contact Analyzer (OCA) and Atomic Force Microscope (AFM) were conducted to evaluate the properties of modified asphalt binders. Significant increases of viscosity and complex shear modulus were observed for nanoclay-modified binders because of nanoclay’s nanoscale phenomena such as structural features, quantum effects, spatial confinement, high surface energy, and a large fraction of surface atoms. The maximum rutting resistance is expected for binders modified with the 1% Cloisite 11B. The OCA test results suggest that the modified asphalt binders possess higher surface free energy than the neat binder. Therefore, cohesive energy which is an indicator of moisture damage was increased for modified binders. From the AFM analysis, adhesion and deformation values decreased for modified asphalt binders. The minimum adhesion and deformation values were found for asphalt binder samples modified with the 1% Cloisite 10A."
description: Tran-SET Project No. 17BASU01
DOI: 10.5281/zenodo.2213619
title: Use of Nanoclays as Alternatives of Polymers Toward Improving Performance of Asphalt Binders

description: Corresponding data set for Tran-SET Project No. 17BASU01. Abstract of the final report is stated below for reference: "The main goal of this study is to assess the feasibility of the use of nanoclay as an alternative to commonly used polymers such as styrene-butadiene-styrene (SBS), which are used to modify the performance grade (PG) of asphalt binders. Three types of nanoclay and two types of neat binders were selected for laboratory investigation. Different amounts (1, 2, and 3%) of nanoclays were used. A blending protocol has been developed to mix the nanoclay with the asphalt binder. Rotational Viscosity (RV), Dynamic Shear Rheometer (DSR), Optical Contact Analyzer (OCA) and Atomic Force Microscope (AFM) were conducted to evaluate the properties of modified asphalt binders. Significant increases of viscosity and complex shear modulus were observed for nanoclay-modified binders because of nanoclay’s nanoscale phenomena such as structural features, quantum effects, spatial confinement, high surface energy, and a large fraction of surface atoms. The maximum rutting resistance is expected for binders modified with the 1% Cloisite 11B. The OCA test results suggest that the modified asphalt binders possess higher surface free energy than the neat binder. Therefore, cohesive energy which is an indicator of moisture damage was increased for modified binders. From the AFM analysis, adhesion and deformation values decreased for modified asphalt binders. The minimum adhesion and deformation values were found for asphalt binder samples modified with the 1% Cloisite 10A."
description: Tran-SET Project No. 17BASU01
DOI: 10.5281/zenodo.2213726
title: Impacts of Moisture on Asphalt Properties

description: Corresponding data set for Tran-SET Project No. 17BASU03. Abstract of the final report is stated below for reference: "Stripping related moisture damage has been recognized as one of the major pavement distresses since the early 1990s. The main objective of this study is to establish an effective test protocol to quantify moisture susceptibility of asphalt pavements. To this end, selective test methods (Texas Boiling test, Tensile Strength Ratio, Retained Stability, and Hamburg Wheel Test), and procedures based on surface chemistries and molecular-level mechanistic properties have been investigated in this study. Firstly, a comprehensive list of literature related to moisture damage in asphalts was reviewed. Based on the literature review, a detailed project plan and test matrix were developed. Binder samples originated from two different crude sources were collected. The moisture resistance related tests such as static contact angle measurements and Texas Boiling tests were conducted. Besides, asphalt binders’ nanomechanical properties using an Atomic Force Microscopy (AFM) and surface chemistries using a static contact were evaluated in the laboratory. Based on limited test data and analysis, it is concluded that there does not exist any single test method that all agencies are comfortable and equipped to follow in their daily work as each technique has some merits and demerits. However, the Texas Boiling test is found to be the simplest method that requires minimal time and resources. On the other hand, surface chemistry and atomic force microscope-based techniques are becoming popular among researchers and pavement professionals. Findings of this study are expected to help ARDOT in selecting an appropriate moisture resistance test method that is simple, reliable, and easy to implement in their routine work."
description: Tran-SET Project No.17BASU03
DOI: 10.5281/zenodo.2213727
title: Impacts of Moisture on Asphalt Properties

description: Corresponding data set for Tran-SET Project No. 17BASU03. Abstract of the final report is stated below for reference: "Stripping related moisture damage has been recognized as one of the major pavement distresses since the early 1990s. The main objective of this study is to establish an effective test protocol to quantify moisture susceptibility of asphalt pavements. To this end, selective test methods (Texas Boiling test, Tensile Strength Ratio, Retained Stability, and Hamburg Wheel Test), and procedures based on surface chemistries and molecular-level mechanistic properties have been investigated in this study. Firstly, a comprehensive list of literature related to moisture damage in asphalts was reviewed. Based on the literature review, a detailed project plan and test matrix were developed. Binder samples originated from two different crude sources were collected. The moisture resistance related tests such as static contact angle measurements and Texas Boiling tests were conducted. Besides, asphalt binders’ nanomechanical properties using an Atomic Force Microscopy (AFM) and surface chemistries using a static contact were evaluated in the laboratory. Based on limited test data and analysis, it is concluded that there does not exist any single test method that all agencies are comfortable and equipped to follow in their daily work as each technique has some merits and demerits. However, the Texas Boiling test is found to be the simplest method that requires minimal time and resources. On the other hand, surface chemistry and atomic force microscope-based techniques are becoming popular among researchers and pavement professionals. Findings of this study are expected to help ARDOT in selecting an appropriate moisture resistance test method that is simple, reliable, and easy to implement in their routine work."
description: Tran-SET Project No.17BASU03
DOI: 10.5281/zenodo.2214573
title: Development of a Standard Test Method for Characterization of Asphalt Modifiers and Aging-Related Degradation Using an Extensional Rheometer

description: Corresponding data set for Tran-SET Project No. 17BLSU01. Abstract of the final report is stated below for reference: "An extensional deformation test method using a Sentmanat Extensional Rheometer (SER) fixture inside a Dynamic Shear Rheometer (DSR) is developed in this study to investigate the degradation of the polymer due to aging and to investigate the effect of modifier type. A relationship between different percentages of modifier and ductility of the modified binder is also investigated. The sample geometrics used in this study are 1 mm  0.72 mm and 3 mm  0.72 mm. A total of one hundred and sixty-two samples were tested. Three modifiers Styrene-Butadiene-Styrene (SBS), Polyphosphoric Acid (PPA) and latex were used. One PG 76-22, one PG 64-22 and one polymer-modified asphalt emulsion (PAME) were used. First peak elongation force, (F1) is the binders’ stiffness and Second peak elongation force, (F2) is the polymer characteristics. F2 is more visible comparatively at the higher temperature. In most cases, F2 reduces after Rolling Thin Film Oven (RTFO) and Pressure Aging Vessel (PAV) aging. To normalize the stiffness effect of F1 on F2, in this study F2/F1 was used to analyze aging susceptibility of modifiers. All the testing temperatures used in this study exhibited a reduction in F2/F1 due to RTFO aging and further reduction due to PAV aging. Therefore, through this study, it is recommended that this parameter can be used to determine aging susceptibility of polymer in a polymer-modified asphalt binder. F2 is only obtained from the SBS and latex modified binders and emulsions. Addition of PPA did not show any F2, making SBS the most effective modifier among SBS, PPA and latex. F2 has a linear correlation with the percent of the polymer in the PMAE, SBS modified PG 64-22, SBS and PPA modified PG 64-22 and latex modified PG 64-22 with R2 values equal to 0.9934, 0.9323, 0.9893 and 0.9535 respectively, indicating extensional deformation test with SER very promising. Ductility analyses using final angular strain values indicate that modifiers increase ductility significantly while aging reduces ductility. Additional research is required for testing ultra-violet (UV) aged sample, and a DSR-based SER test specification will be developed subsequently."
description: Tran-SET Project No. 17BLSU01
DOI: 10.5281/zenodo.2214574
title: Development of a Standard Test Method for Characterization of Asphalt Modifiers and Aging-Related Degradation Using an Extensional Rheometer

description: Corresponding data set for Tran-SET Project No. 17BLSU01. Abstract of the final report is stated below for reference: "An extensional deformation test method using a Sentmanat Extensional Rheometer (SER) fixture inside a Dynamic Shear Rheometer (DSR) is developed in this study to investigate the degradation of the polymer due to aging and to investigate the effect of modifier type. A relationship between different percentages of modifier and ductility of the modified binder is also investigated. The sample geometrics used in this study are 1 mm  0.72 mm and 3 mm  0.72 mm. A total of one hundred and sixty-two samples were tested. Three modifiers Styrene-Butadiene-Styrene (SBS), Polyphosphoric Acid (PPA) and latex were used. One PG 76-22, one PG 64-22 and one polymer-modified asphalt emulsion (PAME) were used. First peak elongation force, (F1) is the binders’ stiffness and Second peak elongation force, (F2) is the polymer characteristics. F2 is more visible comparatively at the higher temperature. In most cases, F2 reduces after Rolling Thin Film Oven (RTFO) and Pressure Aging Vessel (PAV) aging. To normalize the stiffness effect of F1 on F2, in this study F2/F1 was used to analyze aging susceptibility of modifiers. All the testing temperatures used in this study exhibited a reduction in F2/F1 due to RTFO aging and further reduction due to PAV aging. Therefore, through this study, it is recommended that this parameter can be used to determine aging susceptibility of polymer in a polymer-modified asphalt binder. F2 is only obtained from the SBS and latex modified binders and emulsions. Addition of PPA did not show any F2, making SBS the most effective modifier among SBS, PPA and latex. F2 has a linear correlation with the percent of the polymer in the PMAE, SBS modified PG 64-22, SBS and PPA modified PG 64-22 and latex modified PG 64-22 with R2 values equal to 0.9934, 0.9323, 0.9893 and 0.9535 respectively, indicating extensional deformation test with SER very promising. Ductility analyses using final angular strain values indicate that modifiers increase ductility significantly while aging reduces ductility. Additional research is required for testing ultra-violet (UV) aged sample, and a DSR-based SER test specification will be developed subsequently."
description: Tran-SET Project No. 17BLSU01
DOI: 10.5281/zenodo.2214575
title: Use of Rice Hull Ash (RHA) as a Sustainable Source of Construction Material

description: Corresponding data set for Tran-SET Project No. 17CASU02. Abstract of the final report is stated below for reference: "With the imminent shortage of natural resources, the need to find sustainable development is the highest in recent history. Therefore, this study examines the potential uses of Rice Hull Ash (RHA) as a sustainable cementitious material (SCM) in preparation of concrete. This study also assesses the use of RHA as an alternative of commonly used polymers in preparing high-grade asphalt binders. RHA is a potential sustainable solution because it is currently being treated as an agricultural waste material, yet its high silica content makes it a potential construction material. Three different sizes of RHA (600 µm, 150 µm, and 44 µm) with two different partial replacement percentages (10% and 20%) of type I Ordinary Portland Cement (OPC) were considered to prepare concrete and mortar samples. For the comparative analysis, two more SCM materials, namely, class C fly ash (CFA) and silica fume (SF), were also incorporated in this study. The results of the fresh concrete tests (slump, unit weight, air entrainment) and hardened concrete tests (e.g., compressive, tensile, flexural strength) have suggested that with a 10% replacement of OPC using finer RHA- modified concrete exhibits the improvement of concrete properties compared to the regular concrete. Based on limited test data of RHA-modified binders, RHA appears to be a viable alternative of commonly used polymers."
description: Tran-SET Project No. 17CASU02
DOI: 10.5281/zenodo.2214576
title: Use of Rice Hull Ash (RHA) as a Sustainable Source of Construction Material

description: Corresponding data set for Tran-SET Project No. 17CASU02. Abstract of the final report is stated below for reference: "With the imminent shortage of natural resources, the need to find sustainable development is the highest in recent history. Therefore, this study examines the potential uses of Rice Hull Ash (RHA) as a sustainable cementitious material (SCM) in preparation of concrete. This study also assesses the use of RHA as an alternative of commonly used polymers in preparing high-grade asphalt binders. RHA is a potential sustainable solution because it is currently being treated as an agricultural waste material, yet its high silica content makes it a potential construction material. Three different sizes of RHA (600 µm, 150 µm, and 44 µm) with two different partial replacement percentages (10% and 20%) of type I Ordinary Portland Cement (OPC) were considered to prepare concrete and mortar samples. For the comparative analysis, two more SCM materials, namely, class C fly ash (CFA) and silica fume (SF), were also incorporated in this study. The results of the fresh concrete tests (slump, unit weight, air entrainment) and hardened concrete tests (e.g., compressive, tensile, flexural strength) have suggested that with a 10% replacement of OPC using finer RHA- modified concrete exhibits the improvement of concrete properties compared to the regular concrete. Based on limited test data of RHA-modified binders, RHA appears to be a viable alternative of commonly used polymers."
description: Tran-SET Project No. 17CASU02
DOI: 10.5281/zenodo.2215105
title: Bridge Deck Overlays Using Ultra-High Performance Concrete

description: Corresponding data set for Tran-SET Project No. 17CNMS01. Abstract of the final report is stated below for reference: "This study investigated the use of a locally produced ultra-high performance concrete (UHPC) as an alternative to typical overlay materials. Several bond strength tests including slant-shear, splitting tension, and direct tension tests were performed to assess the bond strength between UHPC and normal strength concrete (NSC) substrate with varying surface textures. Tests were also conducted to assess the early-age and longer-term shrinkage behavior and coefficient of thermal expansion of the UHPC as well as rapid chloride permeability testing. Good bond between UHPC and NSC substrate was observed even with inadequate surface texture. Combined shrinkage and thermal effects were investigated for NSC slabs overlaid with the non-proprietary UHPC by analyzing five slab-overlay sections. Each slab-overlay had a single parameter varied to isolate the effects of thickness of the NSC substrate, substrate reinforcement ratio, and exposure conditions. Increased steel reinforcement and thickness of the NSC substrate were observed to reduce the effect of UHPC overlay shrinkage. The final major experiment was to overlay a full-scale channel girder to assess the response of a high-performance concrete, pre-stressed bridge girder with a 1-in. (25-mm) UHPC overlay to flexural loading. The girder was subjected to 1000 load-unload cycles to specified service load conditions. Cyclic loading was applied both before and after application of the UHPC overlay to provide a comparison of global behavior and performance of the girder and overlay. Finally, the girder with overlay was loaded to failure to investigate post-cracking and ultimate behavior of the composite member. Little to no visible distress was observed in the overlay until loads were applied that were significantly greater than expected under normal service conditions. The results indicated that the non-proprietary UHPC has the potential to serve as an overlay material as long as proper measures are used to prepare the substrate surface and ensure a high quality bond with the existing deck."
description: Tran-SET Project No. 17CNMS01