cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.14457/tu.the.2021.70
title: Sulfuric acid resistance of pastes with various types of cement replacing materials

description: At present, some authorities in Thailand are planning to construct underground wastewater systems. One of the major concerns for this type of infrastructure is the deterioration of the structures, mostly concrete, which will be exposed to an aggressive environment i.e. sulfuric acid produced in the wastewater environment. Therefore, the current practice which mainly focuses on the strength of concrete is considered not adequate for designing these underground wastewater structures. It is vital to consider the durability of concrete to prolong the service life of the structures in this aggressive environment. Therefore, understanding the chemical attacks to minimize deterioration is very essential. However, investigation on the mechanisms of sulfuric acid attack on concrete has not been made clear, especially for the concrete with various types of cement replacing materials such as fly ash, limestone powder, and silica sand powder.This study is aimed to develop a better understanding of the mechanisms of deterioration of concrete in sulfuric acid solution and to find ways for improving the resistance of concrete to sulfuric acid attack by using cement replacing materials (CRMs). The CRMs used for the study are those widely available in Thailand which are fly ashes with high CaO and low CaO, limestone powder, and sand powder. Their effect on sulfuric acid resistance of specimens exposed to sulfuric acid solutions in laboratory and mechanisms of the deterioration are studied. The mix proportions are designed to compare the effectiveness of the single binder, binary binder, and ternary binder systems. It was found from the results of the study that fly ash can be used to partially replace cement to improve the sulfuric acid resistance of concrete. Higher fly ash content led to better performance. Low CaO fly ash is more effective than high CaO fly ash in providing sulfuric acid resistance to concrete. Sand powder can be used to improve acid resistance, reduce cost and reduce CO2 emission of the concrete with high CaO fly ash. The results in this research can be utilized as a guideline to determine appropriate supplementary cementitious materials (SCMs) for partially replacing cement in concrete for effective improvement of resistance of concrete to sulfuric acid attack.
DOI: 10.14457/tu.the.2021.71
title: Effectiveness and affecting variables of MOOCs hybrid learning and educational gamification design

description: This dissertation focus on effective e-learning model that is suitable to solve rural education problem. Education is the important fundamental in any society but some students do not have a chance to obtain the standard education. E-learning was established to fill this gap. It can provide long distance learning with good curriculum to a wider group of population. However, each model of e-learning still has its specific problem and effectiveness of some methods are still in debatable, when applied these models to rural education. MOOCs hybrid learning, educational gamification, and e-learning design have become core model to support rural learning process. E-learning models have been originally designed for education in developed countries. However, there are some obstacles to make use of them in developing countries. In case of Thai education, there is an insufficient number of teachers in rural schools, and these teachers have to teach many subjects in which they have low experience. Moreover, most rural students are low-performing student, who study in Rural and Low-Income Schools (RLISs). Developing MOOCs hybrid learning and educational gamification model to reduce number of low-performing students are an effective way to enhance an education system. In this dissertation, we propose a MOOC hybrid learning, educational gamification model, and e-learning content design that are suitable and effective for rural education. Researcher simultaneously identify factors and features that affect learning outcome and knowledge retention. In addition, quantitative research approach using paired t-test to determine the difference in scores between the pre and post-tests. Kruskal-Wallis (H Test) was conducted to analyze and find the relationships between improvements in scores and factors. The data was collected from 314 students for MOOCs hybrid teaching model, 251 students for educational gamification model, and 263 students for e-learning content design. Students were in grades 7-10 (13-16 years old) and randomly selected from a public school in rural Thailand.The results show that MOOCs hybrid learning, gamification, and e-learning content design are effective for urban and rural schools and can solve developing countries’ education problems. Researcher also found that group activities (e.g., peer tutoring and forum discussions), and academic achievement improve students’ learning ability.
DOI: 10.6073/pasta/499b6a3ffdac265f927da6fc20e971c4
title: Jornada Basin LTER: Wireless meteorological station at NPP T-EAST site: 5-minute summary wind and air temperature data: 2013 - ongoing

description: 5-minute summary data at NPP T-EAST met station. Average air temperature, wind speed and wind direction are measured and calculated based on 1-second scan rate of all sensors located at an automated meteorological station installed at Jornada LTER NPP T-EAST site. Wind speed is measured at 75 cm, 150 cm, and 300 cm, wind direction at approximately 3m, and air temperature at approximate 2.5m. This climate station is operated by the Jornada LTER Program. This is an ONGOING dataset.
DOI: 10.6073/pasta/f05c30e9e0cb078e84facd8d35dcd76e
title: Jornada Basin LTER: Wireless meteorological station at NPP T-EAST site: 1-hour summary data: 2013 - ongoing

description: Hourly summary data at NPP T-EAST met station. Average/maximum/minimum air temperature; average relative humidity and wind direction; average/maximum wind speed; solar radiation; albedo. These are measured and calculated based on 1-second scan rate of all sensors located at an automated meteorological station installed at Jornada LTER NPP T-EAST site. Wind speed is measured at 75 cm, 150 cm, and 300 cm, wind direction at approximately 3m, and air temperature and relative humidity at approximate 2.5m. Solar radiation is measured at 3m. This climate station is operated by the Jornada LTER Program. This is an ONGOING dataset.
DOI: 10.6073/pasta/1bef11a2198c45ff6c8a96ff06fe7bcb
title: Jornada Basin LTER: Wireless meteorological station at NPP T-EAST site: 30-minute summary data: 2013 - ongoing

description: 30-minute summary data at NPP T-EAST met station. Average air temperature, relative humidity, wind speed, wind direction, and solar radiation are measured and calculated based on 1-second scan rate of all sensors located at an automated meteorological station installed at Jornada LTER NPP T-EAST site. Wind speed is measured at 75 cm, 150 cm, and 300 cm, wind direction at approximately 3m, and air temperature and relative humidity at approximate 2.5m. Solar radiation is measured at 3m. This climate station is operated by the Jornada LTER Program. This is an ONGOING dataset.
DOI: 10.6073/pasta/b0284ccec17848a65f93eccf98641257
title: Jornada Basin LTER: Wireless meteorological station at NPP T-EAST site: Daily summary data: 2013 - ongoing

description: Daily summary data at NPP T-EAST met station. Average/maximum/minimum air temperature; average/maximum relative humidity and wind speed and average wind direction; solar radiation; albedo. These are measured and calculated based on 1-second scan rate of all sensors located at an automated meteorological station installed at Jornada LTER NPP T-EAST site. Wind speed is measured at 75 cm, 150 cm, and 300 cm, wind direction at approximately 3m, and air temperature and relative humidity at approximate 2.5m. Solar radiation is measured at 3m. This climate station is operated by the Jornada LTER Program. This is an ONGOING dataset.
DOI: 10.6073/pasta/c33a8dbbc29acdc46062a933ef9b78d4
title: Jornada Basin LTER: Wireless meteorological station at NPP T-EAST site: 1-second summary precipitation data: 2013 - ongoing

description: 1-second summary precipitation data at NPP T-EAST met station. Total precipitation per second is recorded only if there is measurable precipitation. This is recorded at an automated meteorological station installed at Jornada LTER NPP T-EAST site.. This climate station is operated by the Jornada LTER Program. IMPORTANT: Rainfall is only recorded when a bucket tip occurs on the tipping bucket rain gauge. If there is missing data due to equipment or other problems, there will be no indication of this within this dataset. The user needs to review precipitation values in the 30 minute or hourly summary datasets to determine if there are missing data in this 1 second detailed precipitation dataset. Reference the package i.d.'s knb-lter-jrn.210437028, knb-lter-jrn.210437043, and knb-lter-jrn.210437058 for the NPP T-EAST met station 30 minute, hourly, and daily summary datasets, respectively. This is an ONGOING dataset.
DOI: 10.6073/pasta/e7ee637b8e1efe957696e64c8d14a05b
title: Jornada Basin LTER: Wireless meteorological station at NPP T-EAST site: 30-minute soil volumetric water content data: 2013 - ongoing

description: 30-minute Soil Moisture data at NPP T-EAST met station. Collection of soil volumetric water content data at Jornada LTER NPP sites, New Mexico, supports the environmental monitoring objectives of the Jornada LTER monitoring program that look at plant-soil water dynamics. Volumetric water content, bulk electrical conductivity, soil temperature, and bulk dielectric permittivity are measured every 30 minutes at an automated meteorological station installed at Jornada LTER NPP T-EAST site. Measurements are made every 30 minutes at 10 cm, 20 cm, and 30 cm soil depths. This is an ONGOING dataset.
DOI: 10.6073/pasta/8be8e8650030d3fd2296e4f66babe688
title: Jornada Basin LTER: Wireless meteorological station at NPP T-EAST site: Daily average soil volumetric water content data: 2013 - ongoing

description: Daily average of 30-minute Volumetric Water Content at NPP T-EAST met station. Collection of soil volumetric water content data at Jornada LTER NPP sites, New Mexico, supports the environmental monitoring objectives of the Jornada LTER monitoring program that look at plant-soil water dynamics. Volumetric water content, bulk electrical conductivity, soil temperature, and bulk dielectric permittivity are measured and calculated at an automated meteorological station installed at Jornada LTER NPP T-EAST site. The daily average at 3 soil depths is calculated from measurements made every 30 minutes at 10 cm, 20 cm, and 30 cm. This is an ONGOING dataset.
DOI: 10.6084/m9.figshare.15170898
title: STICC: A multivariate spatial clustering method for repeated geographic pattern discovery with consideration of spatial contiguity

description: Spatial clustering has been widely used for spatial data mining and knowledge discovery. An ideal multivariate spatial clustering should consider both spatial contiguity and aspatial attributes. Existing spatial clustering approaches may face challenges for discovering repeated geographic patterns with spatial contiguity maintained. In this paper, we propose a Spatial Toeplitz Inverse Covariance-Based Clustering (STICC) method that considers both attributes and spatial relationships of geographic objects for multivariate spatial clustering. A subregion is created for each geographic object serving as the basic unit when performing clustering. A Markov random field (MRF) is then constructed to characterize the attribute dependencies of subregions. Using a spatial consistency strategy, nearby objects are encouraged to belong to the same cluster. To test the performance of the proposed STICC algorithm, we apply it in two use cases. The comparison results with several baseline methods show that the STICC outperforms others significantly in terms of adjusted rand index and macro-F1. Joint count statistics is also calculated and shows that the spatial contiguity is well preserved by STICC. Such a spatial clustering method may benefit various applications in the fields of geography, remote sensing, transportation, and urban planning, etc.
DOI: 10.21227/by9e-w780
title: Dataset of "An LLC Converter with Capacitive Insulation"

description: This dataset includes detailed original data of the circuit schematic, PCB layout, and efficiency results.
DOI: 10.5281/zenodo.6345366
title: A reliable algorithm for calculating stoichiometry parameters in the hard modeling of spectrophotometric titration data

description: Supporting Matlab code and data for the manuscript "A reliable algorithm for calculating stoichiometry parameters in the hard modeling of spectrophotometric titration data"
DOI: 10.6073/pasta/4216a46cbc794b19923820ccdeec706c
title: Jornada Basin LTER: Wireless meteorological station at NPP T-TAYL site: 5-minute summary wind and air temperature data: 2013 - ongoing

description: 5-minute summary data at NPP T-TAYL met station. Average air temperature, wind speed and wind direction are measured and calculated based on 1-second scan rate of all sensors located at an automated meteorological station installed at Jornada LTER NPP T-TAYL site. Wind speed is measured at 75 cm, 150 cm, and 300 cm, wind direction at approximately 3m, and air temperature at approximate 2.5m. This climate station is operated by the Jornada LTER Program. This is an ONGOING dataset.
DOI: 10.6073/pasta/becb73649f41ed3eb1c30026b34644b2
title: Jornada Basin LTER: Wireless meteorological station at NPP T-TAYL site: 1-hour summary data: 2013 - ongoing

description: Hourly summary data at NPP T-TAYL met station. Average/maximum/minimum air temperature; average relative humidity and wind direction; average/maximum wind speed. These are measured and calculated based on 1-second scan rate of all sensors located at an automated meteorological station installed at Jornada LTER NPP T-TAYL site. Wind speed is measured at 75 cm, 150 cm, and 300 cm, wind direction at approximately 3m, and air temperature and relative humidity at approximate 2.5m. This climate station is operated by the Jornada LTER Program. This is an ONGOING dataset.
DOI: 10.5281/zenodo.6343346
title: Dataset of crop yield and management in CS02 from Diverfarming project

description: Auxiliary data related to crop management and data of different crop yields in mandarin monoculture and mandarin diversified treatments during three crop cycles in case study 02 from Diverfarming project
DOI: 10.5281/zenodo.6325385
title: Dataset of crop yield and management in CS02 from Diverfarming project

description: Auxiliary data related to crop management and data of different crop yields in mandarin monoculture and mandarin diversified treatments during three crop cycles in case study 02 from Diverfarming project
DOI: 10.6073/pasta/c9b9f8af414e76ccbfa072cbb5748925
title: Jornada Basin LTER: Wireless meteorological station at NPP T-TAYL site: 30-minute summary data: 2013 - ongoing

description: 30-minute summary data at NPP T-TAYL met station. Average air temperature, relative humidity, wind speed and wind direction are measured and calculated based on 1-second scan rate of all sensors located at an automated meteorological station installed at Jornada LTER NPP T-TAYL site. Wind speed is measured at 75 cm, 150 cm, and 300 cm, wind direction at approximately 3m, and air temperature and relative humidity at approximate 2.5m. This climate station is operated by the Jornada LTER Program. This is an ONGOING dataset.
DOI: 10.6073/pasta/66112f2f59c3c9e5d61500255de182fd
title: Jornada Basin LTER: Wireless meteorological station at NPP T-TAYL site: Daily summary data: 2013 - ongoing

description: Daily summary data at NPP T-TAYL met station. Average/maximum/minimum air temperature; average/maximum relative humidity and wind speed and average wind direction. These are measured and calculated based on 1-second scan rate of all sensors located at an automated meteorological station installed at Jornada LTER NPP T-TAYL site. Wind speed is measured at 75 cm, 150 cm, and 300 cm, wind direction at approximately 3m, and air temperature and relative humidity at approximate 2.5m. This climate station is operated by the Jornada LTER Program. This is an ONGOING dataset.
DOI: 10.5517/ccdc.csd.cc29gsj3
title: CCDC 2129375: Experimental Crystal Structure Determination

description: Related Article: Masayoshi Takase, Atsushi Ueno, Kosuke Oki, Hiroki Matsumoto, Shigeki Mori, Tetsuo Okujima, Hidemitsu Uno|2022|Chem.Commun.|58|3366|doi:10.1039/D1CC07152A
DOI: 10.5517/ccdc.csd.cc29gsk4
title: CCDC 2129376: Experimental Crystal Structure Determination

description: Related Article: Masayoshi Takase, Atsushi Ueno, Kosuke Oki, Hiroki Matsumoto, Shigeki Mori, Tetsuo Okujima, Hidemitsu Uno|2022|Chem.Commun.|58|3366|doi:10.1039/D1CC07152A
DOI: 10.5517/ccdc.csd.cc29gsl5
title: CCDC 2129377: Experimental Crystal Structure Determination

description: Related Article: Masayoshi Takase, Atsushi Ueno, Kosuke Oki, Hiroki Matsumoto, Shigeki Mori, Tetsuo Okujima, Hidemitsu Uno|2022|Chem.Commun.|58|3366|doi:10.1039/D1CC07152A
DOI: 10.5517/ccdc.csd.cc29g2vq
title: CCDC 2128703: Experimental Crystal Structure Determination

description: Related Article: Rafał Petrus, Józef Utko, Joanna Petrus, Mohammad Awashra, Tadeusz Lis|2022|Dalton Trans.|51|4135|doi:10.1039/D1DT03777C
DOI: 10.5517/ccdc.csd.cc29hbqw
title: CCDC 2129908: Experimental Crystal Structure Determination

description: Related Article: Ziad Moussa, Zaher M. A. Judeh, Ahmed Alzamly, Saleh A. Ahmed, Harbi Tomah Al-Masri, Bassam Al-Hindawi, Faisal Rasool, Sara Saada|2022|RSC Advances|12|6133|doi:10.1039/D2RA00049K
DOI: 10.5517/ccdc.csd.cc29hgx6
title: CCDC 2130038: Experimental Crystal Structure Determination

description: Related Article: Steven J. Chapman, Wesley B. Swords, Christine M. Le, Ilia A. Guzei, F. Dean Toste, Tehshik P. Yoon|2022|J.Am.Chem.Soc.|144|4206|doi:10.1021/jacs.2c00063
DOI: 10.15468/sr7gpa
title: (Table 1) Fossil record of foraminifera and ostracoda from Albersdorf clay pit, north Germany
DOI: 10.15468/wwk3u8
title: (Table 1) Abundances of Discoaster species in ODP Hole 130-806C

description: Members of the calcareous nannofossil genus Discoaster have been used extensively to subdivide Tertiary deep-sea sediments into biostratigraphic zones or subzones (e.g., Martini, 1971; Bukry, 1973). Haq and Lohmann (1976) mapped biogeographic migrations of this group through time and over latitude. They suggested that expansions and contractions of Discoaster-dominated assemblages across latitudes reflect sea-surface temperature changes. Subsequently, late Pliocene Discoaster species were counted at closely spaced sample intervals from various Atlantic sites (Backman et al., 1986; Backman and Pestiaux, 1987; Chepstow-Lusty et al., 1989, 1991), and Indian Ocean as well as Pacific Ocean sites (Chepstow-Lusty, 1990). In addition to the biostratigraphic information revealing positions and the precision by which the different late Pliocene Discoaster species can be determined, these studies also demonstrated that discoasters strongly fluctuate in abundance as a function of time. These abundance variations occur in equatorial as well as temperate temperature regimes, and show periodicities that reflect orbital frequencies. Chepstow-Lusty et al. (1989, 1991) also suggested that the oscillating abundances partly represent productivity pressure, because discoasters tend to show low abundances under high productivity conditions and vice versa. In the Pacific Ocean, counts showing late Pliocene Discoaster abundances exist from three sites, namely Ocean Drilling Program (ODP) Site 677 in the eastern equatorial upwelling region, Core V28-179 from the central equatorial region, and Core V32-127 from the mid-latitude Hess Rise. The two Vema cores are condensed and show sedimentation rates below 0.5 cm/1000 yr, thus offering a poorly resolved stratigraphy. Hole 806C from the Ontong Java Plateau provided an opportunity to establish a highly resolved Discoaster record from the western extreme of the equatorial Pacific under an environmental setting that differed from ODP Site 677 by being less influenced by intense upwelling. The Discoaster counting technique is described by Backman and Shackleton (1983).
DOI: 10.15468/wtk5hu
title: (Table T1) Foraminifer abundance of ODP Hole 188-1165B
DOI: 10.15468/bxrrds
title: (Table T1) Biostratigraphy and distribution of Quaternary and Miocene calcareous nannofossils in ODP Site 188-1165

description: During Ocean Drilling Program (ODP) Leg 188, piston and rotary cores were recovered at three southern Indian Ocean sites on the continental margin in Prydz Bay, Antarctica, in order to obtain a detailed sedimentary record reflecting Cenozoic Antarctic glacial history and paleoenvironments. Coring at continental rise Site 1165 revealed a relatively continuous, ~1000-m, lower Miocene to upper Pliocene section overlain by a thin Quaternary cover. No nannofossils were noted at shelf Site 1166, where a discontinuous, ~343-m section of Quaternary- to Late Cretaceous-age predominantly glacial marine diamictons was recovered. At slope Site 1167, ~447 m of clayey silty sands was recovered, where nannofossils are rare and sporadic but indicate Pleistocene age for at least the upper ~227 m there. This report focuses on data collected from Site 1165, where Neogene-Quaternary calcareous nannofossils are moderately to well preserved and sporadically present, but abundant in several intervals. Assemblages are characterized by low diversity with one or two dominant taxa. Mid- and low-latitude age-diagnostic marker species are absent. Nannofossil Zone CN15 and Subzones CN14b and CN13b-CN14a were identified in Pleistocene sediments based on the presence of Emiliania huxleyi, Pseudoemiliania lacunosa, and large Gephyrocapsa caribbeanica. Pliocene sediments are barren of nannofossils. Only general age and zonal assignments are possible for the relatively complete Miocene section (as dated by siliceous microfossils). The presence of Minylitha convallis in one sample permits the identification of upper Miocene Zones CN7-CN9. Cyclicargolithus floridanus is used to delineate presence of middle Miocene Zone CN5 and older. Assemblages in samples from the base of the section at Site 1165 are indicative of an early Miocene age (CN1-CN3). Overall, nannofossil assemblages are characterized by dominant Reticulofenestra spp., which are typical of high latitudes. Reticulofenestra perplexa and Reticulofenestra producta form nearly monospecific assemblages in a few intervals. M. convallis has not previously been reported in upper Miocene sediments from the Antarctic margin and likely indicate a brief warming event. Sporadic nannofossil abundance increases at deepwater (~3500 m) Site 1165 may be due to the following processes or combination of processes: (1) high nannofloral productivity in surface waters around Prydz Bay, possibly associated with warmer intervals; (2) periodic downward fluctuations in the calcium carbonate compensation depth, permitting less dissolution (possibly the result of the first condition); or (3) rapid transport and burial downslope.
DOI: 10.15468/q3g8n5
title: (Table T5) Relative abundance of Eocene plant microfossil taxa of ODP Site 188-1166
DOI: 10.15468/8zh28a
title: (Table T6) Relative abundance of Cretaceous plant microfossil taxa of ODP Site 188-1166
DOI: 10.15468/d7js8f
title: (Table 1) Planktonic foraminifera preservation indexes of ODP Hole 130-805C
DOI: 10.15468/yyfw4d
title: (Appendix) Planktonic foraminiferal abundances in ODP Hole 130-805C