Article
Construction & Building Technology
Ruiqie Jiang, Xinglin Zhou, Maoping Ran
Summary: Digital image processing is widely used in civil engineering to measure aggregate morphologies. However, its limitations in analyzing only two-dimensional geometric features due to laying style and acquisition method have been overcome by a new laser scanning-based method proposed in this study. The development of three-dimensional morphology indexes has shown promising results in accurately characterizing coarse aggregate morphologies, providing insights for asphalt mixture design and quality control of asphalt pavements.
ROAD MATERIALS AND PAVEMENT DESIGN
(2023)
Article
Construction & Building Technology
Junqing Wu, Xiang Zhou, Xiaohui Zeng, Youjun Xie, Guangcheng Long, Rongzhen Dong, Hussaini Abdullahi Umar, Gang Ma, Li Yao
Summary: This paper statistically analyzed the aggregate morphology characteristics using 3D laser scanning and digital image processing technology, and built a 3D aggregate database. The loose packing model was established using the gravity falling method, and the effect of aggregate morphology characteristics on the voidage and void spatial distribution was quantitatively studied.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Jun-Yu Jia, Xiang-Lin Gu
Summary: The study demonstrated that the surface morphology of coarse aggregates significantly affects the mechanical properties of concrete, including components such as waviness and roughness. New calculation methods considering the influence of 3D surface morphology accurately predict the failure procedure of concrete and interface cracking characteristics. Additionally, it was found that tensile strength is more sensitive to coarse aggregate surface morphology.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
M. Selvam, Kalyan NSSP, Ramesh Kannan Kandasami, Surender Singh
Summary: This study comprehensively compares the dominant parameters affecting the mesostructural arrangement of aggregates in concrete compacted with different mechanisms, and compares them with field compacted specimens. The results indicate that using a vibratory hammer and modified Proctor compactor can result in better aggregate distribution and strength, with a lower segregation potential. However, the use of the modified Proctor compactor may alter the aggregates' morphological characteristics due to particle breakage during the compaction process. On the other hand, the vibratory table and gyratory compactor can have similar interparticle distances to field specimens but may not exhibit similar performance in terms of strength and durability.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Kopano Conferance Phefadu, Lawrence Munjonji
Summary: Soil structure is a sensitive and dynamic soil physical property that requires constant monitoring and evaluation in response to different tillage systems. This study used VESS and SubVESS methods to assess the soil structure quality of clayey soils under different tillage systems and found that the soil structure quality was better under no-tillage systems compared to conventional tillage systems.
Article
Engineering, Geological
Roberto Pasquale Trotta, Emilio Velloso Barroso, Laura Maria Goretti da Motta
Summary: This study examined the technological properties of components in Migmatites aggregates, including their composition, properties, strength, and particle morphology. It found that the proportion of igneous materials could affect the suitability of aggregates, and identified antagonistic behavior between melanosome and leucosome lithotypes.
ENGINEERING GEOLOGY
(2021)
Article
Construction & Building Technology
Zichao Pan, Xurui Fang, Airong Chen
Summary: In this study, the influence of aggregate morphology on the chloride diffusivity of concrete was evaluated based on the physical tortuosity of the diffusive path at the meso-scale. Three morphological indices were defined and a novel method using the Fourier transform was proposed to simulate the meso-scale model of concrete. The effects of aggregate morphological indices on the physical tortuosity were analyzed using multiple linear regression.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Tian Li, Rita Nogueira, Jorge de Brito, Jiaping Liu
Summary: This study investigates the influence of fine aggregate's morphology on mortars' rheology. The authors gathered a sample of aggregates with different morphology and described their morphology at three different scales. The results show that the morphology of fine aggregates is properly characterized by the parameters sphericity, roundness, and fractal dimension. The rheological behavior of mortars prepared with the sampled aggregates show large differences, indicating a noticeable impact of fine aggregate's morphology on mortars' rheology. The parameter D/PFT is proposed as a universal parameter to assess the rheological properties of mortars.
JOURNAL OF BUILDING ENGINEERING
(2023)
Review
Neurosciences
Lance Fredrick Pahutan Bosch, Katrin Kierdorf
Summary: Microglia, the innate immune cells of the CNS parenchyma, play a crucial role in neurodevelopmental, neurodegenerative, and neuroinflammatory conditions. This review provides an overview of microglial morphological analysis methods and emphasizes the importance of unbiased, automated morphological reconstruction approaches to understand microglial function in the CNS parenchyma.
FRONTIERS IN CELLULAR NEUROSCIENCE
(2022)
Article
Agronomy
Juergen Fritz, Finja Lauer, Anette Wilkening, Pierre Masson, Stephan Peth
Summary: The study used an on-vineyard approach to investigate the effects of biodynamic preparations on soil structure in five vineyards with different bedrocks. While there were no significant differences in soil aggregate stability, improvements were observed in various aspects of soil structure when using biodynamic preparations, indicating a potential link to microbial activity.
BIOLOGICAL AGRICULTURE & HORTICULTURE
(2021)
Article
Construction & Building Technology
D. F. Diogenes, V. T. F. Castelo Branco, J. A. Nogueira Neto, L. M. G. Motta
Summary: This study evaluates the relationship between the petrographic, physical, and morphological properties of aggregates in ballasted permanent track. The results show that properties such as grain shape, texture, and mineralogy strongly influence the behavior of the aggregates. Higher mafic content in rocks leads to greater resistance to aggregate degradation, while higher mafic and biotite contents contribute to an increase in angularity value after wear tests. Medium/coarse grained rocks induce higher porosity, water absorption, and compression degradation.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Review
Engineering, Chemical
L. Theodon, J. Debayle, C. Coufort-Saudejaud
Summary: This article highlights the importance of morphological characterization of aggregates or agglomerates and proposes the application of Systematic Literature Review (SLR) method to study various aspects related to this topic. By reviewing and summarizing numerous articles, the article presents important information on the measurement methods, research fields, and image analysis techniques related to the morphological characteristics of aggregates.
Article
Biology
Thomas J. J. Smith, Robert S. S. Sansom, Davide Pisani, Philip C. J. Donoghue
Summary: Analyses of morphological disparity examine how phenotypic variation changes through time by incorporating living and fossil taxa. However, non-random patterns of data loss in fossil data due to taphonomic processes could distort perceptions of disparity. This study investigates the effects of random and structured data loss on measures of disparity and suggests caution in extrapolating general patterns in disparity from datasets that may only represent a subset of traits sampled.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Article
Construction & Building Technology
Shuyin Wu, Qiulin Wu, Jingsong Shan, Xing Cai, Xing Su, Xiaofeng Sun
Summary: The effect of aggregate morphology on the mechanical properties and permeability characteristics of pervious concrete was investigated. Sphericity was used as an index to describe the aggregate morphology, and tests and simulations were conducted. The results show that aggregates with more edges and corners are favorable for forming an interlocking skeleton and improve the loadbearing capacity. The compatibility of particle morphology has an important influence on the properties of mixtures, such as the seepage velocity.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Chemical
Halil Ibrahim Yazici, Hakan Erturk, Fengshan Liu
Summary: This study comprehensively analyzes the effects of necking and polydispersity in aggregate and primary particle size on the scattering matrix elements of soot aggregates. The study uses a tunable algorithm based on cluster-cluster aggregation to generate aggregate representations, and implements necking via a modified cylindrical connector model and the level-set function model with different coefficients. Scattering properties are calculated using discrete dipole approximation and multi-sphere T-matrix method. The impact of necking on the scattering matrix is evaluated using an aggregate volume based approach.
JOURNAL OF AEROSOL SCIENCE
(2023)
Article
Soil Science
Matias E. Duval, Juan A. Galantini, Julia E. Capurro, Juan M. Martinez
SOIL & TILLAGE RESEARCH
(2016)
Article
Soil Science
Matias E. Duval, Juan A. Galantini, Juan M. Martinez, Fernando M. Lopez, Luis G. Wall
SOIL & TILLAGE RESEARCH
(2016)
Article
Soil Science
Juan M. Martinez, Juan A. Galantini, Matias E. Duval, Fernando M. Lopez
SOIL & TILLAGE RESEARCH
(2017)
Article
Agronomy
Eduardo de Sa Pereira, Juan Alberto Galantini, Matias Ezequiel Duval
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
(2017)
Article
Agronomy
Juan M. Martinez, Juan A. Galantini, Matias E. Duval
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
(2018)
Article
Agronomy
Juan M. Martinez, Juan A. Galantini, Matias E. Duval, Maria Rosa Landriscini, Ramiro J. Garcia, Fernando Lopez
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
(2018)
Article
Geosciences, Multidisciplinary
Matias E. Duval, Juan A. Galantini, Juan M. Martinez, Fabiana Limbozzi
Article
Soil Science
Juan A. Galantini, Matias E. Duval, Julio O. Iglesias, Hugo Kruger
Article
Agriculture, Multidisciplinary
Celio I. Chagas, Filipe B. Kraemer, Oscar J. Santanatoglia, Marta Paz, Juan Moretton
SPANISH JOURNAL OF AGRICULTURAL RESEARCH
(2014)
Article
Soil Science
Matias E. Duval, Juan M. Martinez, Juan A. Galantini
SOIL USE AND MANAGEMENT
(2020)
Article
Soil Science
Juan M. Martinez, Juan A. Galantini, Matias E. Duval, Fernando M. Lopez
SOIL USE AND MANAGEMENT
(2020)
Article
Soil Science
Filipe Behrends Kraemer, Hector Morras, Patricia Lilia Fernandez, Matias Duval, Juan Galantini, Lucas Garibaldi
Summary: The Pampa Region of Argentina faces challenges in soil water regime due to decline in aggregates stability, leading to simplification of crop sequences with soybean predominance. However, some farmers are intensifying crop sequences to avoid soil degradation and maintain economic incomes. Soil management practices and cropping intensity have significant impacts on soil aggregate stability, with more intensive agricultural managements resulting in enhanced aggregates stability in Mollisols and Vertisol.
SOIL & TILLAGE RESEARCH
(2021)
Article
Soil Science
Lin Liu, Yili Lu, Robert Horton, Tusheng Ren
Summary: A new approach is presented in this study to estimate the parameters of the soil water retention curve (SWRC). The new method accurately estimates SWRCs by using measured thermal conductivity-water content curves, soil texture, bulk density, and field capacity water content.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Zhongshan Dai, Yong Zhang, Yujie Wei, Chongfa Cai
Summary: This study investigates the effects of erosion degradation and long-term manure fertilization on soil properties and crop yield in Northeast China. Results show that erosion degradation and manure fertilization have lasting impacts on soil physical structure throughout the soil profile, while their effects on soil nutrient properties are focused in shallow layers. Manure fertilization significantly improves soil functional index (ISI) and maize yield for degraded soils. Erosion degradation has a greater influence on ISI and maize yield than manure fertilization.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Xintong Xu, Ruiyu Bi, Mengxin Song, Yubing Dong, Ying Jiao, Bingxue Wang, Zhengqin Xiong
Summary: The substitution of organic fertilizers for inorganic fertilizers has a significant impact on soil organic carbon (SOC) and can help combat soil degradation and climate change in intensive vegetable production.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Moritz Koza, Roger Funk, Julia Poehlitz, Christopher Conrad, Olga Shibistova, Tobias Meinel, Kanat Akshalov, Gerd Schmidt
Summary: Semi-arid regions in Central Asia are experiencing wind erosion due to steppe conversion and unsustainable farming practices. A study conducted in Kazakhstan used a mobile wind tunnel to assess soil erodibility under real conditions. The results showed significant differences in soil erosion based on initial conditions and mechanical stress, emphasizing the importance of proper soil management to prevent severe events.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Tong Li, Guorui Li, Zhiqiang Lu, Deqiang Zhao, Yuze Li, Ziting Wang, Xiaoxia Wen, Yuncheng Liao
Summary: Conservation agriculture with three management principles is effective in mitigating soil erosion and nutrient loss. This study found that no tillage significantly increased soil extracellular enzyme activities, while legume incorporation only had a significant effect on phosphorus-acquiring enzymes. Crop diversity positively influenced the no tillage-induced increase in enzyme activities.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Zahra Khasi, Mohammad Sadegh Askari, Setareh Amanifar, Kamran Moravej
Summary: This research aims to evaluate the applicability of visual soil evaluation methods for agricultural systems in semi-arid regions and assess the relationship between soil physical quality and crop yield. The results indicate that visual evaluation methods can effectively assess soil conditions, and optimal soil structural quality is crucial for sustainable crop production.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Amin Jannatul Ferdous, Xiaolin Wang, Katie Lewis, John Zak
Summary: Conservative agricultural management strategies can enhance crop productivity by altering soil microbiome, and incorporating legumes into cover crops in semi-arid regions can improve the dynamics of rhizobial communities. There is a strong underlying relationship between soil management and bacterial diversity in the soil.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Haiman Wang, Wankui Ni, Haisong Liu, Kangze Yuan
Summary: This study investigates the structural strength of the Loess-Paleosol Sequence (LPS) and finds that the strength tends to increase with burial depth, with the loess layer weaker than the paleosol layer. The microstructure of the LPS also undergoes significant transformations with increased burial depth, transitioning from an overhead structure to a matrix structure. These findings highlight the importance of climate conditions on the structural strength of the LPS.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Ranabir Chakraborty, V. K. Sharma, Debarup Das, D. R. Biswas, P. Mahapatra, D. K. Shahi, M. Barman, K. A. Chobhe, D. Chakraborty
Summary: This study aimed to evaluate the impact of long-term nutrient management practices on P fractions and P adsorption-desorption behaviour of an acid soil with a soybean-wheat cropping system. The findings revealed that amorphous Fe and Al, which play a significant role in P fixation, increased due to cultivation. The NPK+Lime treatment offered the most balanced approach, improving both crop yield and P uptake while effectively managing P dynamics in the soil. On the contrary, long-term application of NPK+FYM in an acid soil may result in faster P saturation of adsorption sites and increase the chances of leaching and eutrophication. Tailored P fertilization strategies should be developed to better utilize the PFe and PAl fractions and supplementing applied P.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Yuan Li, Ying Li, Qingping Zhang, Gang Xu, Guopeng Liang, Dong-Gill Kim, Carmen Rosa Carmona, Mei Yang, Jianming Xue, Yangzhou Xiang, Bin Yao, Yuying Shen
Summary: Agricultural intensification has led to severe degradation of croplands in China. Converting degraded croplands to grasslands can increase soil organic carbon and nitrogen content, but may decrease soil pH and available phosphorus. The duration of conversion and mean annual precipitation are major factors influencing soil changes.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Xinliang Wu, Sixu Yao, Jinxing Zhou
Summary: The coupling effect of slaking and mechanical breakdown on aggregate stability was evaluated using a new method. This method can partition the unique and shared effects of these two breakdown mechanisms and showed better performance in predicting soil erosion compared to existing methods.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Xinni Ju, Lei Gao, Dongli She, Yuhua Jia, Zhe Pang, Yaji Wang
Summary: This study linked soil pore structures quantified by X-ray computed tomography (CT) scanning and infiltration processes traced using stable hydrogen and oxygen isotopes under different land uses in the red soil region of southern China. The results showed that soil pore characteristics mainly affected soil water transport, while other soil properties played more important roles in soil water retention. CT-based porosity and soil texture were considered crucial indicators in the evaluation of water exchange during infiltration processes.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Hongwei Xu, Qing Qu, Jiaping Yang, Zhen Wang, Minggang Wang, Rentao Liu, Sha Xue
Summary: This study systematically analyzed the effects of drought on terrestrial ecosystem C-N-P stoichiometry on a global scale. The results showed that drought significantly decreased the C:N ratio in soil, enzymes, shoots, and roots. Soil microbes were limited by N, whereas plants were restricted by P under drought stress. Drought intensity and duration were negatively correlated with shoot N:P and vector angle.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Sara L. Bauke, Sabine J. Seidel, Miriam Athmann, Anne E. Berns, Melanie Braun, Martina I. Gocke, Julien Guigue, Timo Kautz, Ingrid Koegel-Knabner, Juliette Ohan, Matthias Rillig, Michael Schloter, Oliver Schmittmann, Stefanie Schulz, David Uhlig, Andrea Schnepf, Wulf Amelung
Summary: Agricultural production in Central Europe is increasingly affected by extreme drought events. This study found that incorporating organic matter, especially biowaste compost, into the subsoil significantly increased root growth and subsequently improved crop nutrient uptake, biomass, and grain yield. The incorporation of green waste compost had less pronounced effects.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Xi Chen, Xuesong Wang
Summary: Based on the application of the integrated wind erosion modeling system, this study comprehensively simulated the loss and conservation of nutrients during aeolian dust emissions in the arid and semiarid areas of China. The results showed a decreasing trend in nutrient losses over the past two decades, with the ecosystems playing a crucial role in preventing these losses. The prevention rates of different land cover types were generally high, indicating the effectiveness of conservation measures.
SOIL & TILLAGE RESEARCH
(2024)