Article
Computer Science, Artificial Intelligence
Thi-Phuong Nguyen, Yi-Kuei Lin, Yi-Hao Chiu
Summary: This paper investigates the reliability of online food delivery services and focuses on their ability to meet customer needs within given time and space constraints. By constructing a multistate online food delivery network, the study evaluates the system's performance through the computation of reliability. The research helps managers understand whether their network is capable of meeting specific customer demands and enables them to make appropriate adjustments.
EXPERT SYSTEMS WITH APPLICATIONS
(2023)
Article
Engineering, Mechanical
Hongchao Li, Michael Z. Q. Chen
Summary: This work focuses on the achievable dynamic responses of general undamped mass-chain systems, using the Youla parametrization to obtain stabilizing controllers and frequency spectrums. The study reveals the relationship between achievable responses of transfer functions obtained from different system measurements.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Engineering, Multidisciplinary
Thi-Phuong Nguyen, Yi-Kuei Lin
Summary: This study evaluates the reliability of a multistate transportation network in tourism and proposes an algorithm to assess the influence of transit time on reliability. The research finds that transit time significantly affects network reliability, and provides suggestions for maintaining appropriate transit times to uphold reliability.
EKSPLOATACJA I NIEZAWODNOSC-MAINTENANCE AND RELIABILITY
(2021)
Article
Computer Science, Artificial Intelligence
Hao Zhao, Jikai Wang, Deyun Dai, Shiqi Lin, Zonghai Chen
Summary: This paper proposes a dynamic NMS network (D-NMS net) to predict the optimal NMS threshold for each input image and embed it into object detectors. Experimental results demonstrate that with the help of D-NMS net, the accuracy and efficiency of detectors are significantly improved.
Article
Engineering, Civil
Kai Zhou, Taiwen You, Dao Gong, Jinsong Zhou
Summary: In this study, the dynamic behavior of moving corrugated sandwich panels is investigated using an equivalent model. The proposed control strategy successfully suppresses the vibration of the panels.
THIN-WALLED STRUCTURES
(2023)
Article
Environmental Sciences
Denham G. Cook, Peter Jaksons, Maryam Alavi, Alistair Jerrett
Summary: The study found that through supplementary feeding, the abundance and behaviors of fish in a temperate South Pacific estuary showed a highly predictable pattern. Fish numbers and collective behaviors significantly increased during active feeding at the station, but decreased markedly when feeding was stopped.
MARINE ENVIRONMENTAL RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Xiaoxuan Zhang, Leying Wu, Xiaozhe Ma, Yaochen Qin
Summary: This study used a dynamic computable general equilibrium model to analyze the trends and structure of agricultural greenhouse gas (GHG) emissions and grain production in China. The results showed that both CO2 emissions and non-CO2 GHG emissions from agriculture will continue to increase. The findings carry policy implications for China's agriculture in terms of low-carbon development.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Acoustics
Fanhao Guo, Jingtao Du, Yang Liu
Summary: This study aims to establish a unified model for dynamic analysis of a one-dimensional standing-wave thermoacoustic engine (TAE) with general impedance ends. The differential equations governing the thermoacoustic behavior and the impedance boundary conditions of the TAE are solved using the Galerkin method and an improved Fourier series expansion method. It is found that the engine length has a negative correlation with the modal frequencies, and arbitrary variations in impedance boundary conditions can be simulated.
JOURNAL OF VIBRATION AND CONTROL
(2022)
Article
Mechanics
Jing Zhao, Zhijiang Gao, Hui Li, Jialin Guan, Qingkai Han, Qingshan Wang
Summary: A unified modeling method is proposed in this work to obtain the exact solution for dynamic analysis of CFRC circular arche with PGPC and general boundary conditions in hygrothermal environment. The method uses first-order shear beam theory to express the displacement field and Hooke's Law to determine stress, while also considering the stored energy of general boundary and the effects of hygrothermal environment. The stability and effectiveness of the method are validated, and the dynamic response of the structure with different parameters is calculated.
COMPOSITE STRUCTURES
(2021)
Article
Computer Science, Artificial Intelligence
Jieyu Zhang, Zidong Wang, Weibo Liu, Xiaohui Liu, Qiusheng Zheng
Summary: In this work, a sequence-based recommendation model is proposed for food recommendation, which considers the dynamically changing user-item interactions. The model is built using the long short-term memory (LSTM) network and personalized recommendations are made using a collaborative filtering unit. Experimental results show that the developed method outperforms popular recommender systems in food recommendation in terms of precision, recall, mean average precision, and mean reciprocal rank.
INTERNATIONAL JOURNAL OF MACHINE LEARNING AND CYBERNETICS
(2023)
Article
Management
Faisal Alkaabneh, Ali Diabat, Huaizhu Oliver Gao
Summary: This article proposes a framework for optimizing the allocation of resources by food banks to address the impact of food insecurity and poor nutrition on health issues. Through a dynamic programming model and computational experiments, it is shown that this approach significantly improves total utility and the nutrition of the served population.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2021)
Article
Biodiversity Conservation
Noe Espinosa-Novo, Luis Gimenez, Maarten Boersma, Gabriela Torres
Summary: The invasive Asian shore crab Hemigrapsus sanguineus competes with the native European shore crab Carcinus maenas. Warming has the potential to exacerbate the negative effects of food limitation on survival and growth of crab larvae, but high temperature seems to mitigate the negative effects of food limitation on H. sanguineus larvae.
BIOLOGICAL INVASIONS
(2023)
Article
Engineering, Civil
J. Lu, X. Hua, C. Chiu, X. Zhang, S. Li, Z. Meng, W. Xu
Summary: This study develops a unified modeling method for FGP annular and circular plates by introducing virtual spring technology and multi-segment partition method. The effects of different parameters on the dynamic response of the structure are revealed through calculations of frequency parameters, modal shapes, and forced vibration responses.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2022)
Article
Mathematics, Interdisciplinary Applications
Xiaoling Zou, Pengyu Ma, Liren Zhang, Jingliang Lv
Summary: This paper investigates the dynamic properties of a stochastic food chain model consisting of two competing predators and one prey using Lyapunov exponents. The experimental result shows the possibility of competitive coexistence in this random case, and the theoretical results are well verified by numerical simulations.
CHAOS SOLITONS & FRACTALS
(2022)
Article
Environmental Sciences
Andre Gergs, Jutta Hager, Eric Bruns, Thomas G. Preuss
Summary: The ecotoxicological profiles of the insecticides imidacloprid, thiacloprid, and flupyradifurone in Chironomus riparius were analyzed in terms of acute and chronic effects. The toxicokinetic-toxicodynamic modeling revealed that chironomids would die from starvation due to prolonged feeding inhibition under chronic exposures. The study suggests that the additional effect of starvation is not relevant for flupyradifurone.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Engineering, Environmental
Ida Beathe Overjordet, Raymond Nepstad, Bjorn Henrik Hansen, Tjalling Jager, Julia Farkas, Dag Altin, Ute Bronner, Trond Nordtug
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2018)
Article
Ecology
Tjalling Jager, Raymond Nepstad, Bjorn Henrik Hansen, Julia Farkas
ECOLOGICAL MODELLING
(2018)
Article
Multidisciplinary Sciences
James Duckworth, Tjalling Jager, Roman Ashauer
SCIENTIFIC REPORTS
(2019)
Article
Environmental Sciences
Renee Katrin Bechmann, Maj Arnberg, Alessio Gomiero, Stig Westerlund, Emily Lyng, Mark Berry, Thorleifur Agustsson, Tjalling Jager, Les E. Burridge
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2019)
Article
Ecology
Tjalling Jager
ECOLOGICAL MODELLING
(2020)
Article
Environmental Sciences
Tjalling Jager
Summary: TKTD models provide mechanistic understanding of individual-level toxicity over time and have great potential for ecotoxicological studies. Robust software tools are needed for automatically extracting best-fitting model parameters and quantifying their uncertainty, especially in the context of environmental risk assessment.
INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT
(2021)
Article
Engineering, Environmental
Sylvain Bart, Tjalling Jager, Alex Robinson, Elma Lahive, David J. Spurgeon, Roman Ashauer
Summary: The GUTS model provides a framework for deriving TKTD models that consider the effects of toxicant exposure on survival over time. Experimental studies and previously published data demonstrate the predictive power of the extended GUTS-RED framework for mixture assessment, offering novel diagnostic tools for understanding chemical mode of action in mixtures. Deviations from model predictions can identify interactions between mixture components, such as synergism or antagonism, which are not accounted for by the models, highlighting the importance of TKTD models in mixture hazard assessments.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Marine & Freshwater Biology
Tjalling Jager, Jan Heuschele, Torben Lode, Katrine Borga
Summary: Bioenergetic analysis of growth and development in animals requires precise measurement of biomass or biovolume. In a study of the copepod Tigriopus brevicornis, it was found that shape changes occurred during different developmental stages, emphasizing the importance of using volumetric length rather than total body length for bioenergetic analysis.
JOURNAL OF SEA RESEARCH
(2021)
Article
Environmental Sciences
Tjalling Jager, Marie Trijau, Neil Sherborne, Benoit Goussen, Roman Ashauer
Summary: Toxicokinetic-toxicodynamic (TKTD) modeling is crucial for understanding the time dependence of toxic effects and predicting consequences of time-varying exposure, especially in environmental risk assessment of pesticides. However, linking the modeled variables in TKTD models with observations from laboratory ecotoxicity tests, particularly for reproductive endpoints, presents challenges.
INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT
(2022)
Article
Environmental Sciences
Linn H. Svendheim, Tjalling Jager, Pal A. Olsvik, Ida Beathe Overjordet, Tomasz M. Ciesielski, Trond Nordtug, Torstein Kristensen, Bjorn Henrik Hansen, Bjarne Kvaestad, Dag Altin, Julia Farkas
Summary: This study investigated the effects of mine tailing exposure on marine copepods and found that exposure led to slower growth and reduced lipid accumulation. The presence of metals and processing chemicals did not influence these responses, suggesting that uptake of mineral particles was responsible for the observed effects. The applied dynamic energy budget (DEB) model confirmed that ingestion of tailing particles while feeding can result in less energy being available for growth and development.
Article
Multidisciplinary Sciences
Neil Sherborne, Tjalling Jager, Benoit Goussen, Marie Trijau, Roman Ashauer
Summary: Toxicokinetic-toxicodynamic (TKTD) models have the potential to be applied in environmental risk assessment (ERA), and their core assumption has been mathematically tested.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Sylvain Bart, Stephen Short, Tjalling Jager, Emily J. Eagles, Alex Robinson, Claire Badder, Elma Lahive, David J. Spurgeon, Roman Ashauer
Summary: The assessment of chemical mixture toxicity is a major challenge in ecotoxicology. In this study, a new approach using toxicokinetic-toxicodynamic modeling was proposed, which accurately simulated synergistic and antagonistic effects of different mixtures on various species. This model can identify interactions throughout the exposure time and provide predictions for untested exposure scenarios.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Ecology
Tjalling Jager, Benoit Goussen, Andre Gergs
Summary: Toxicokinetic-toxicodynamic (TKTD) models are important tools to bridge the gap between laboratory toxicity tests and field conditions. Dynamic energy budget (DEB) theory provides a solid foundation for TKTD modeling. This paper presents a complete TKTD model that includes a standard DEB animal model and a TKTD model that considers damage as the driving force for toxic effects.
ECOLOGICAL MODELLING
(2023)
Article
Environmental Sciences
Sylvain Bart, Tjalling Jager, Stephen Short, Alex Robinson, Darren Sleep, M. Gloria Pereira, David J. Spurgeon, Roman Ashauer
Summary: The use of the Dynamic Energy Budget theory (DEB) and toxicokinetic-toxicodynamic (TK-TD) models allows ecotoxicologists to model the effects of chemical stressors on organism life cycles. However, the application of DEB-TKTD models for soil fauna has been limited due to a lack of appropriate experimental designs. In this study, the impact of the insecticide cypermethrin on the life cycle of Enchytraeus crypticus was assessed, and an original experimental design was developed to collect necessary data for the calibration of a DEB-TKTD model. The simulations of the DEB-TKTD model successfully agreed with the collected data, demonstrating its potential in ecological risk assessment for terrestrial ecosystems and understanding chemical effects on non-target species.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Soil Science
Sagnik Sengupta, Hans Petter Leinaas, Cornelis A. M. van Gestel, Tjalling Jager, Thomas Rundberget, Katrine Borga
Summary: Survival of early life stages is crucial for population growth. The neonicotinoid insecticide imidacloprid, commonly used worldwide, can be toxic to non-target soil organisms. This study investigated the effects of dietary exposure to imidacloprid on the survival of juveniles in two populations of Folsomia quadrioculata. The results showed a concentration-dependent decline in survival, with different levels of vulnerability between populations and a higher mortality risk during the juvenile stage compared to the adult stage.
APPLIED SOIL ECOLOGY
(2023)