Article
Water Resources
Basudev Biswal
Summary: The coefficient of the Brutsaert-Nieber equation is dependent on the exponent, making it challenging to provide independent information on streamflow dynamics. Recent research suggests that the decorrelation method may not completely dissociate the Brutsaert-Nieber parameters. Analysis indicates that, in various scenarios, the fixed exponent method is preferable to the decorrelation method.
ADVANCES IN WATER RESOURCES
(2021)
Article
Engineering, Civil
E. Perret, M. Lang, J. Le Coz
Summary: A generic framework is proposed to evaluate the relative discharge error caused by ignoring stage-discharge hysteresis due to transient flow over large gauging station networks. The research used the Jones equation to diagnose the hysteresis effect and found that slope estimates were crucial for the diagnostic results. The method was applied to gauging stations in France and significant hysteresis effects were found at stations with low bed slope and fast flood regime. However, due to the uncertainty of slope data, it was difficult to draw firm conclusions.
JOURNAL OF HYDROLOGY
(2022)
Article
Engineering, Civil
Samer Majdalani, Olivier Delestre, Roger Moussa
Summary: The study aimed to investigate the feasibility of using a small 3D printed model for hydraulic studies. By reproducing the complex phenomenon of the loop rating curve (LRC), it was found that the small 3D printed model yielded promising results that were consistent with observations on large channels or natural rivers. This suggests that 3D printing technique can be used to create small-scale hydraulic models.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Biplov Bhandari, Kel Markert, Vikalp Mishra, Amanda Markert, Robert Griffin
Summary: Flooding is a recurring natural disaster worldwide, with developing countries being particularly vulnerable due to inadequate mitigation and management strategies. This study focuses on Cambodia, where data scarcity hinders the evaluation of global streamflow services. By utilizing time series of water level and discharge data, a data-derived rating curve was generated for fifteen stations in Cambodia. The study validated the process by applying it to ten stations in the US and found similar performance. The results highlight the importance of dataset distribution in deriving a reliable rating curve and demonstrate the effectiveness of the time series approach in capturing extreme events.
Article
Engineering, Civil
Kausik Ghosh, Francisco Munoz-Arriola
Summary: This study aims to explore the interdependent shifts in streamflow and suspended sediment load across the natural-to-post dam construction continuum in a transboundary Himalayan river basin. The results indicate that dam construction has a disruptive effect on increasing sediment loads, and sediment trapping is exacerbated during the non-monsoon season. However, during the monsoon season, dam-released sediment-starved streamflow leads to increased erosion in the basin.
JOURNAL OF HYDROLOGY
(2023)
Article
Water Resources
J. William Lund, Joel T. Groten, Diana L. Karwan, Chad Babcock
Summary: A thorough understanding of fluvial sediment transport is crucial for addressing environmental concerns. This study developed and trained machine learning models to predict suspended sediment and bedload, using sampling data collected in Minnesota, US. The models successfully explained approximately 70% of the variance in the datasets, with important features identified using SHAP plots. This study is a promising step forward in predicting fluvial sediment transport using machine learning models, with applications in landscape and water management.
HYDROLOGICAL PROCESSES
(2022)
Article
Engineering, Environmental
Kezhen Wang, Rakesh K. Gelda, Rajith Mukundan, Scott Steinschneider
Summary: This study compared various statistical rating curve techniques to estimate turbidity in fluvial systems, with results showing that dynamic linear models coupled with additional time series modeling on the residuals provide the most robust forecasts.
JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION
(2021)
Article
Water Resources
Durga Sharma, Basudev Biswal
Summary: This study argues that there is no perfect approach to estimate the value of alpha in recession analysis and that it should depend on the final objective. By predicting recession discharge for 408 basins, it is observed that the optimum value of alpha is substantially lower than the alpha median for most of the basins.
HYDROLOGICAL SCIENCES JOURNAL
(2022)
Article
Thermodynamics
Qiao Lin, Nadine Allanic, Pierre Mousseau, Manuel Girault, Remi Deterre
Summary: Recent studies highlight the significance of monitoring equipment/strategy for energy efficiency and quality control in polymer processing. Novel devices and methods are proposed for temperature and viscosity measurements in polymer production. This paper employs an annular measuring device on an injection molding machine to detect material changes through temperature measurements. A unique inverse method based on the viscous dissipation phenomenon is introduced for viscosity identification using temperature measurements of the annular device. The identification process successfully distinguishes the viscosity difference between two polymers, and the results align well with available viscosity curves from literature. (c) 2023 Elsevier Ltd. All rights reserved.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Construction & Building Technology
Jelena Lovric Vrankovic, Ivica Boko, Ivana Uzelac Glavinic, Neno Toric, Mario Abramovic
Summary: This paper presents the experimental investigation of glulam beams made from European hornbeam under constant loading for three months. The study aims to explore bending creep tests for hardwood species that are not included in the European Assessment Document. The results indicate good agreement between the experimental data and the power law equation, and a comparison with Eurocode 5 requirements is provided.
Article
Engineering, Multidisciplinary
Nicholas S. Szczecinski, Chris J. Dallmann, Roger D. Quinn, Sasha N. Zill
Summary: Control of forces is crucial for animals and walking machines. Insects measure forces through campaniform sensilla (CS) in their exoskeletons, with CS afferent firing frequency being highly dynamic and adapting to different forces over time. A new phenomenological model predicts CS discharge based on the instantaneous stimulus force relative to an adaptive variable, which can replicate responses to various force stimuli and exhibit power-law adaptation.
BIOINSPIRATION & BIOMIMETICS
(2021)
Article
Materials Science, Multidisciplinary
Quoc Tuan Pham, Myoung-Gyu Lee, Young-Suk Kim
Summary: This study presents a new procedure for identifying the flow stresses of sheet metals at large strains by fitting the experimental data from uniaxial tensile tests and measured forming limit values. The proposed method ensures the accuracy of pre-necking hardening description and reduces the variation of predicted flow stresses beyond uniform elongation for different hardening laws. Application and validation of the developed approach on finite element simulation show good agreement with experimental results, thus confirming the accuracy and efficiency of the proposed identification procedure for large strain hardening in sheet metals.
MECHANICS OF MATERIALS
(2021)
Article
Multidisciplinary Sciences
Jiawei Luo, Yan Liu, Daixuan Wu, Xiao Xu, Lijie Shao, Yuanhua Feng, Jingshun Pan, Jiayu Zhao, Yuecheng Shen, Zhaohui Li
Summary: By developing a quaternary phase encoding scheme, single-exposure time-reversed ultrasonically encoded optical focusing with full-phase modulations is achieved, marking an important step towards in vivo deep tissue applications of wavefront shaping.
Article
Environmental Sciences
Ana Kadic, Vesna Denic-Jukic, Damir Jukic
Summary: This study analyzes the relationship between karst spring discharge and turbidity using hysteresis loops. The study area is the karst catchment of the Jadro Spring in Croatia. The results show that hysteresis loops are very useful in analyzing water turbidity from karst springs, and different types of hysteresis loops have been identified.
Article
Business
Rama Syamala Sreepada, Bidyut Kr Patra
Summary: Recommender systems have successfully tackled information overload by providing personalized suggestions, but traditional algorithms favor popular items, neglecting long tail items. The proposed approaches inject ratings to long tail items based on existing data to offer better recommendations.
ELECTRONIC COMMERCE RESEARCH AND APPLICATIONS
(2021)