cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7451504
title: The interaction of a naturally occurring membranous collagen with high-saline dye solutions – mechanistic features from unusual multi-step biosorption

description: ABSTRACT It is known that wastewaters containing dyes are very difficult to treat, since many dyes are stable and recalcitrant molecules. In this way, sorption may suitable for effectively remove dyes in this specific application field. In this work, a first approach for using polymeric membranous collagen of fish scales for sorption of saline methylene blue dye (MB) solution found in subsurface procedures of oil well industry. From structural characterization, the sorbent was found to be a composite of fibrillar type I collagen and apatites. The MB sorption amounts decreased with temperature increasing, with maximum MB sorbed of 2.18 mmol g-1 at 25 0C. In most sorption tests, residual MB in saline water was undetectable within 200 min of contact time. The sorption kinetic data were well adjusted to a three-parameter multi-step exponential function. The good fitting of such function were only obtained taking into account the presence of time-dependent kinetic parameters. The proposed multi-step sorption mechanism involved surface interaction and diffusion of MB into the membranous collagen. The interaction of positively charged MB ions with the collagenous adsorbent occurred through electrostatic forces. The results point out the collagenous adsorbent for effective procedures of sorption of MB dyes from high-saline wastewaters.
DOI: 10.6084/m9.figshare.7451507
title: Metal-Organic Frameworks based in zinc and aluminium as heterogeneous catalysts to oleic acid esterification

description: ABSTRACT The recurring environmental problems of the use of fossil fuels have encouraged the search for fuels from clean and renewable sources that can minimize the emission of greenhouse gases. In this sense, biodiesel has been highlighted in the market of fuels. The production of industrial biodiesel based on homogeneous alkaline catalysis presents technical requirements that directly impact on its cost of production. Researchers have sought to develop heterogeneous catalysts as an alternative to this process. Metal-Organic Frameworks, MOFs, are a class of promising materials for catalytic processes, as they result from the combination of organic and inorganic materials, which gives them properties such as high porosity, ordered structure and structural flexibility. Thus, the focus of this study was to synthesize and characterize MOFs containing zinc and aluminum oxides, prepared by the hydrothermal method, and immobilize them in the silica network, aiming to increase their thermal and chemical stability. The physicochemical characterization of the materials confirmed the formation of MOFs, indicating that the synthesis method was reproducible and efficient. The catalytic tests indicated that the non-immobilized material MOF-Al/Zn presented higher catalytic activity in the esterification of oleic acid, however it showed leaching of the active species. However, the immobilization of this material on silica resulted in a stable catalyst, being possible to reuse it without significant loss of the catalytic activity. The immobilization of Metal-Organic Frameworks on silica networks has shown to be a promising option for the synthesis of an active and efficient heterogeneous catalyst for esterification reactions of oleic acid.
DOI: 10.7284/103415
title: Winch data collected during research cruise MV1101 using a Markey DUSH-5 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7451501.v1
title: Weibull analysis of tensile tested piassava fibers with different diameters

description: ABSTRACT Environmental considerations in addition to technical, economical and societal benefits are increasingly promoting the substitution of natural fibers for glass fiber in polymer matrix composites. However, natural fibers are heterogeneous in their dimensions, specially the cross section, which plays an important role in their mechanical strength. It has been found that the equivalent diameter of fibers such as sisal, ramie, pineapple and curaua correlates to different levels of tensile resistance. Piassava is a promising stiff natural fiber for composite reinforcement. In this work, a statistical analysis of tensile strength of piassava fibers using the Weibull methodology was performed. An attempt to correlate the fiber strength, obtained in tensile tests, with the diameter, precisely measured by means of a profile projector, was carried out. The results revealed an inverse dependence between the piassava fiber diameter and corresponding tensile strength. Fracture tip observation by SEM suggested a possible mechanism that could justify this inverse correlation.
DOI: 10.6084/m9.figshare.7451504.v1
title: The interaction of a naturally occurring membranous collagen with high-saline dye solutions – mechanistic features from unusual multi-step biosorption

description: ABSTRACT It is known that wastewaters containing dyes are very difficult to treat, since many dyes are stable and recalcitrant molecules. In this way, sorption may suitable for effectively remove dyes in this specific application field. In this work, a first approach for using polymeric membranous collagen of fish scales for sorption of saline methylene blue dye (MB) solution found in subsurface procedures of oil well industry. From structural characterization, the sorbent was found to be a composite of fibrillar type I collagen and apatites. The MB sorption amounts decreased with temperature increasing, with maximum MB sorbed of 2.18 mmol g-1 at 25 0C. In most sorption tests, residual MB in saline water was undetectable within 200 min of contact time. The sorption kinetic data were well adjusted to a three-parameter multi-step exponential function. The good fitting of such function were only obtained taking into account the presence of time-dependent kinetic parameters. The proposed multi-step sorption mechanism involved surface interaction and diffusion of MB into the membranous collagen. The interaction of positively charged MB ions with the collagenous adsorbent occurred through electrostatic forces. The results point out the collagenous adsorbent for effective procedures of sorption of MB dyes from high-saline wastewaters.
DOI: 10.6084/m9.figshare.7451507.v1
title: Metal-Organic Frameworks based in zinc and aluminium as heterogeneous catalysts to oleic acid esterification

description: ABSTRACT The recurring environmental problems of the use of fossil fuels have encouraged the search for fuels from clean and renewable sources that can minimize the emission of greenhouse gases. In this sense, biodiesel has been highlighted in the market of fuels. The production of industrial biodiesel based on homogeneous alkaline catalysis presents technical requirements that directly impact on its cost of production. Researchers have sought to develop heterogeneous catalysts as an alternative to this process. Metal-Organic Frameworks, MOFs, are a class of promising materials for catalytic processes, as they result from the combination of organic and inorganic materials, which gives them properties such as high porosity, ordered structure and structural flexibility. Thus, the focus of this study was to synthesize and characterize MOFs containing zinc and aluminum oxides, prepared by the hydrothermal method, and immobilize them in the silica network, aiming to increase their thermal and chemical stability. The physicochemical characterization of the materials confirmed the formation of MOFs, indicating that the synthesis method was reproducible and efficient. The catalytic tests indicated that the non-immobilized material MOF-Al/Zn presented higher catalytic activity in the esterification of oleic acid, however it showed leaching of the active species. However, the immobilization of this material on silica resulted in a stable catalyst, being possible to reuse it without significant loss of the catalytic activity. The immobilization of Metal-Organic Frameworks on silica networks has shown to be a promising option for the synthesis of an active and efficient heterogeneous catalyst for esterification reactions of oleic acid.
DOI: 10.6084/m9.figshare.7451489
title: Voluntary wheel running: patterns and physiological effects in mice

description: Exercise can prevent and improve the pathophysiology of diseases and promote healthy aging. Thus, understanding the mechanisms that regulate the beneficial effects of exercise may lead to the development of new strategies to enhance quality of life and to counteract chronic diseases. Voluntary wheel running is an interesting model to study the effects of exercise in mice. Compared to forced treadmill exercise, voluntary wheel running presents several advantages such as: 1) running pattern is similar to natural running behavior of mice; 2) it is performed under non-stressed conditions, according to the rhythmicity of the animal; 3) it does not require direct interference from the researcher, and can be easily applied in long-term studies. Mice run spontaneously when given access to running wheels, for a total distance of ∼4 to 20 km per day and a total activity time of ∼3 to 7 hours a day. Hence, voluntary wheel running can result in robust endurance-like adaptation in skeletal and cardiac muscles and protect from sarcopenia. However, due to the lack of control over exercise parameters in voluntary exercise models, it is important for the researcher to understand the patterns and variability of wheel running in mice, as well as the factors that can affect voluntary running activity. Overall, voluntary wheel running in mice is a very interesting approach to study the chronic adaptation to exercise, analyze the effects of exercise, and test exercise capacity in different experimental models.
DOI: 10.7284/103422
title: ADCP (Acoustic Doppler Current Profiler) data collected during research cruise MV1102 using a Hawaii UHDAS instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7451489.v1
title: Voluntary wheel running: patterns and physiological effects in mice

description: Exercise can prevent and improve the pathophysiology of diseases and promote healthy aging. Thus, understanding the mechanisms that regulate the beneficial effects of exercise may lead to the development of new strategies to enhance quality of life and to counteract chronic diseases. Voluntary wheel running is an interesting model to study the effects of exercise in mice. Compared to forced treadmill exercise, voluntary wheel running presents several advantages such as: 1) running pattern is similar to natural running behavior of mice; 2) it is performed under non-stressed conditions, according to the rhythmicity of the animal; 3) it does not require direct interference from the researcher, and can be easily applied in long-term studies. Mice run spontaneously when given access to running wheels, for a total distance of ∼4 to 20 km per day and a total activity time of ∼3 to 7 hours a day. Hence, voluntary wheel running can result in robust endurance-like adaptation in skeletal and cardiac muscles and protect from sarcopenia. However, due to the lack of control over exercise parameters in voluntary exercise models, it is important for the researcher to understand the patterns and variability of wheel running in mice, as well as the factors that can affect voluntary running activity. Overall, voluntary wheel running in mice is a very interesting approach to study the chronic adaptation to exercise, analyze the effects of exercise, and test exercise capacity in different experimental models.
DOI: 10.7284/106645
title: Expendable Probe data collected during research cruise MV1102 using a Sippican MK21 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7451465
title: Porous hypercrosslinked polymer-TiO2-graphene composite photocatalysts for visible-light-driven CO2 conversion

description: The source data underlying Figs 3a-f and 4a–e and Supplementary Figs 7-12, 14,16, 18-23, 25-30 and 32-40 are provided as a Source Data file.
DOI: 10.6084/m9.figshare.7451465.v1
title: Porous hypercrosslinked polymer-TiO2-graphene composite photocatalysts for visible-light-driven CO2 conversion

description: The source data underlying Figs 3a-f and 4a–e and Supplementary Figs 7-12, 14,16, 18-23, 25-30 and 32-40 are provided as a Source Data file.
DOI: 10.7284/103417
title: GNSS (Global Navigation Satellite System) data collected during research cruise MV1102 using a Furuno GP-150 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/103424
title: GNSS (Global Navigation Satellite System) data collected during research cruise MV1102 using a Ashtech ADU2 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/103419
title: Gravimeter data collected during research cruise MV1102 using a Bell BGM-3 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/103420
title: Gravimeter data collected during research cruise MV1102 using a Bell BGM-3 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/103418
title: Magnetometer data collected during research cruise MV1102 using a Marine Magnetics SeaSPY instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/103421
title: Multibeam Echosounder data collected during research cruise MV1102 using a Kongsberg EM122 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/103425
title: Winch data collected during research cruise MV1102 using a Markey DUSH-5 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/103430
title: ADCP (Acoustic Doppler Current Profiler) data collected during research cruise MV1103 using a Hawaii UHDAS instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/103431
title: CTD (Conductivity, Temperature, Depth) data collected during research cruise MV1103 using a Sea-Bird SBE-911+ instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7451360.v1
title: Jiaohe-figshare-data

description: The 54.12-ha large-scale observational site (LSOS) is located in the Jiaohe Management Bureau in Jilin Province, China. The area has a mean annual temperature of 3.8 °C and a mean annual precipitation of 695.9 mm. The hottest month is July with the average daily temperature of 21.7 °C, whereas the coldest month is January with the average daily temperature of -18.6 °C. The brown forest soil typical of the area has a rootable depth ranging between 20 and 100 cm. <br>We completely surveyed both sites in two consecutive inventories: the first inventory was conducted in 2010 and the second in 2015. On both sites, each of all free-standing woody stems with a diameter at breast height (dbh) greater than 1 cm was georeferenced and tagged, and the species and dbh were measured on site. A total of 46,458 trees were tallied in 2010, and 44,564 trees were tallied in 2015.
DOI: 10.7284/106646
title: Expendable Probe data collected during research cruise MV1103 using a Sippican MK21 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7451357.v1
title: Data Descriptor_Xu et al. 20181211_Scientific data.docx

description: Here we present an explicit dataset for inorganic N concentrations and deposition mainly for the period 2010-2015 in China, compiled from the nationwide deposition monitoring network. The dataset consists of two sub-datasets; <i>sub-dataset A</i> comprises concentrations and bulk deposition (wet plus part of dry deposition) fluxes of NH<sub>4</sub><sup>+</sup>-N and NO<sub>3</sub><sup>-</sup>-N from 48 monitoring sites<i>; sub-dataset B</i> comprises air concentrations and dry deposition fluxes of the major Nr species NH<sub>3</sub>, NO<sub>2</sub>, HNO<sub>3</sub>, and particulate NH<sub>4</sub><sup>+</sup> and NO<sub>3</sub><sup>-</sup> for 37 of the sites.
DOI: 10.7284/103426
title: GNSS (Global Navigation Satellite System) data collected during research cruise MV1103 using a Furuno GP-150 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7451357.v2
title: A database of atmospheric nitrogen concentration and deposition from the nationwide monitoring network in China

description: Here we present an explicit dataset for inorganic N concentrations and deposition for the period 2010-2015 in China, compiled from the nationwide deposition monitoring network. The dataset comprises information from 32 monitoring sites on concentrations and bulk deposition (wet plus part of dry deposition) fluxes of NH<sub>4</sub><sup>+</sup>-N and NO<sub>3</sub><sup>-</sup>-N, air concentrations and dry deposition fluxes of the major Nr species NH<sub>3</sub>, NO<sub>2</sub>, HNO<sub>3</sub>, and particulate NH<sub>4</sub><sup>+</sup> and NO<sub>3</sub><sup>-</sup>. This unique database is available inter alia to advance understanding of the spatial patterns of inorganic N concentrations and deposition in China and its associated effects, constrain primary Nr (e.g., NH<sub>3</sub>, NO<i><sub>x</sub></i>) emission inventories, and validate outputs of atmospheric chemistry and transport models. <br>
DOI: 10.6084/m9.figshare.7451351
title: Graphs of materials project

description: This file contains the graph representation of structures in the Materials Project (www.materialsproject.org) and target properties, including formation energy per atom, band gap, and for a subset of 5830 structures, the shear moduli G_{VRH} and bulk moduli K_{VRH}. <br><br>This data is part of the our paper "Graph Networks as a Universal Machine Learning Framework for Molecules and Crystals". <br><br>Change log:<br>v5. Minor change of filenamev4. Add dummy state variables.v3. For the graph dictionaries, we modify the "node" key to "atom" and "distance" key to "bond" to match the latest MEGNet API. v2. Minor change of descriptionv1. Initial upload<br><br><br><br>
DOI: 10.7284/103432
title: GNSS (Global Navigation Satellite System) data collected during research cruise MV1103 using a Ashtech ADU2 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7451357
title: A database of atmospheric nitrogen concentration and deposition from a nationwide monitoring network in China

description: Here we present a dataset for inorganic N concentrations and deposition for the period 2010-2015 in China, compiled from the nationwide deposition monitoring network. The dataset comprises information from 32 monitoring sites on concentrations and bulk deposition (wet plus part of dry deposition) fluxes of NH4+-N and NO3--N, air concentrations and dry deposition fluxes of the major Nr species NH3, NO2, HNO3, and particulate NH4+ and NO3-. This unique database is available inter alia to advance understanding of the spatial patterns of inorganic N concentrations and deposition in China and its associated effects, constrain primary Nr (e.g., NH3, NOx) emission inventories, and validate outputs of atmospheric chemistry and transport models. <br>
DOI: 10.6084/m9.figshare.7451357.v3
title: A database of atmospheric nitrogen concentration and deposition from the nationwide monitoring network in China

description: Here we present an dataset for inorganic N concentrations and deposition for the period 2010-2015 in China, compiled from the nationwide deposition monitoring network. The dataset comprises information from 32 monitoring sites on concentrations and bulk deposition (wet plus part of dry deposition) fluxes of NH<sub>4</sub><sup>+</sup>-N and NO<sub>3</sub><sup>-</sup>-N, air concentrations and dry deposition fluxes of the major Nr species NH<sub>3</sub>, NO<sub>2</sub>, HNO<sub>3</sub>, and particulate NH<sub>4</sub><sup>+</sup> and NO<sub>3</sub><sup>-</sup>. This unique database is available inter alia to advance understanding of the spatial patterns of inorganic N concentrations and deposition in China and its associated effects, constrain primary Nr (e.g., NH<sub>3</sub>, NO<i><sub>x</sub></i>) emission inventories, and validate outputs of atmospheric chemistry and transport models. <br>
DOI: 10.7284/103427
title: Gravimeter data collected during research cruise MV1103 using a Bell BGM-3 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/103428
title: Gravimeter data collected during research cruise MV1103 using a Bell BGM-3 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7451351.v3
title: Graphs of materials project

description: This file contains the graph representation of structures in the Materials Project (www.materialsproject.org) and target properties, including formation energy per atom, band gap, and for a subset of 5830 structures, the shear moduli G_{VRH} and bulk moduli K_{VRH}. <br><br>This data is part of the our paper "Graph Networks as a Universal Machine Learning Framework for Molecules and Crystals". <br><br>Change log:<br>v3. For the graph dictionaries, we modify the "node" key to "atom" and "distance" key to "bond" to match the latest MEGNet API. v2. Minor change of description<br><br><br><br>
DOI: 10.7284/103429
title: Multibeam Echosounder data collected during research cruise MV1103 using a Kongsberg EM122 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/103433
title: Winch data collected during research cruise MV1103 using a Markey DUSH-5 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/103439
title: ADCP (Acoustic Doppler Current Profiler) data collected during research cruise MV1104 using a Hawaii UHDAS instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/106644
title: Expendable Probe data collected during research cruise MV1104 using a Sippican MK21 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/103434
title: GNSS (Global Navigation Satellite System) data collected during research cruise MV1104 using a Furuno GP-150 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/103442
title: GNSS (Global Navigation Satellite System) data collected during research cruise MV1104 using a Ashtech ADU2 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/103436
title: Gravimeter data collected during research cruise MV1104 using a Bell BGM-3 instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition