Reset
Showing 20 of 579 academic articles

On Combined Maximal Precedence–Exceedance Test with Application to HIV Clinical Trials

Sylvester Sebola, Niladri Chakraborty, Morné Rowan Sjölander • Mathematics (2026)

This paper proposes a combined maximal precedence–exceedance test (MPErs) that integrates maximal precedence and maximal exceedance statistics tests to provide sensitivity to both early and late distributional differences between two sample...

DOAJ Open Access (DOAJ) DOI: 10.3390/math14203658

Robustness analysis of a Continuous-Time Markov Jump Process model for herd behaviour under stochastic shocks

Samuel Kipsang Kaptum, Jane Aduda Akinyi, Philip Ngare, Amos Kipkorir Langat • Scientific African (2025)

Herd behaviour in socio-economic systems is characterised by asynchronous, stochastic decision-making that traditional models capture imperfectly. Discrete-time DTMCs impose fixed-tick synchrony and require binning, which distorts event tim...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.sciaf.2025.e03042

Mathematical Modeling of Leptospirosis With Misdiagnosis

Japheth Musingila Mwongela, Caroline Kanyiri, Virginia Kitetu • Journal of Applied Mathematics (2026)

Leptospirosis is a widespread zoonotic bacterial disease that continues to pose a major public health challenge, particularly in developing countries where it causes substantial morbidity, mortality, and economic losses. A key problem in co...

DOAJ Open Access (DOAJ) DOI: 10.1155/jama/5513951

Improved representation of laminar and turbulent sheet flow in subglacial drainage models

Tim Hill, Gwenn Elizabeth Flowers, Matthew James Hoffman, Derek Bingham et al. • Journal of Glaciology (2024)

Subglacial hydrology models struggle to reproduce seasonal drainage patterns that are consistent with observed subglacial water pressures and surface velocities. We modify the standard sheet-flow parameterization within a coupled sheet–chan...

DOAJ Open Access (DOAJ) DOI: 10.1017/jog.2023.103

PROCEDURE ENABLING SIMULATION AND IN-DEPTH ANALYSIS OF OPTICAL EFFECTS IN CAMERA-BASED TIME-OF-FLIGHT SENSORS

M. Baumgart, N. Druml, M. Consani • The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences (2018)

This paper presents a simulation approach for Time-of-Flight cameras to estimate sensor performance and accuracy, as well as to help understanding experimentally discovered effects. The main scope is the detailed simulation of the optical s...

DOAJ Open Access (DOAJ) DOI: 10.5194/isprs-archives-XLII-2-83-2018

Fluid-Solid Interaction Analysis of a Flow Passing Cylinder Based on Variational Mode Decomposition

Zuo Yaju, Fang Mingkun, Zhu Di, Lu Jiahao et al. • E3S Web of Conferences (2024)

The fluid-structure interaction problem of cylindrical flow around the cylinder is a classic problem, especially in many fields such as energy engineering, fluid dynamics, engineering structure, energy utilization and development, and envir...

DOAJ Open Access (DOAJ) DOI: 10.1051/e3sconf/202452001017

Optimizing runoff prediction in plains river network areas: a hybrid XAJ-BP modelling framework with basin structure division

Xu Cheng, Shiqiang Wu, Jiangyu Dai, Xiufeng Wu et al. • Engineering Applications of Computational Fluid Mechanics (2026)

The plain water network area is characterized by its flat terrain and a dense crisscrossing of rivers. The runoff process in this region is significantly influenced by human activities, resulting in a complex relationship between water stor...

DOAJ Open Access (DOAJ) DOI: 10.1080/19942060.2026.2749141

Determination of the cost-benefit efficient interval for sponge city construction by a multi-objective optimization model

Changmei Liang, Changmei Liang, Changmei Liang, Changmei Liang et al. • Frontiers in Environmental Science (2023)

The cost-benefit is a key factor when selecting an appropriate sponge city construction scheme. The research of applying intelligent technology to find cost-benefit efficient planning and construction of sponge city is urgently required. Th...

DOAJ Open Access (DOAJ) DOI: 10.3389/fenvs.2022.1072505

Integration of Hydrological Model and Time Series Model for Improving the Runoff Simulation: A Case Study on BTOP Model in Zhou River Basin, China

Qintai Xiao, Li Zhou, Xin Xiang, Lingxue Liu et al. • Applied Sciences (2022)

Improving the accuracy of runoff simulations is a significant focus of hydrological science for multiple purposes such as water resources management, flood and drought prediction, and water environment protection. However, the simulated run...

DOAJ Open Access (DOAJ) DOI: 10.3390/app12146883

Effects of rye grass coverage on soil loss from loess slopes

Yuequn Dong, Tingwu Lei, Shuqin Li, Cuiping Yuan et al. • International Soil and Water Conservation Research (2015)

Vegetative coverage is commonly used to reduce urban slope soil erosion. Laboratory experimental study on soil erosion under grass covered slopes is conventionally time and space consuming. In this study, a new method is suggested to study ...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.iswcr.2015.05.006

Numerical simulation of gravity-driven motion of fine-grained sediment deposits in large reservoirs: case study of the Three Gorges Reservoir

JIA Dongdong, ZHOU Jianyin, SHAO Xuejun, ZHANG Xingnong • Shui kexue jinzhan (2018)

Sediment deposition is one of the key issues during the processes of reservoir construction and operation. On the basis of the observed sedimentation patterns in the dam area of Three Gorges Reservoir (TGR), a schematic diagram of fine-grai...

DOAJ Open Access (DOAJ) DOI: 10.14042/j.cnki.32.1309.2018.01.007

Experimental Study on the Effect of the Angle of Attack on the Flow-Induced Vibration of a Harbor Seal’s Whisker

Yuhan Wei, Chunning Ji, Dekui Yuan, Liqun Song et al. • Fluids (2023)

A harbor seal’s whisker is able to sense the trailing vortices of marine organisms due to its unique three-dimensional wavy shape, which suppresses the vibrations caused by its own vortex-shedding, while exciting large-amplitude and synchro...

DOAJ Open Access (DOAJ) DOI: 10.3390/fluids8070206

Adaptive Tracking Control of Anchoring Unit for Pipeline Intelligent Plugging Robot Based on Improved Deep Deterministic Policy Gradient

Tingting Wu, Yaxin Liu, Laihe Qi, Pu Wang et al. • Machines (2026)

A pipeline intelligent plugging robot (PIPR) is an important tool in subsea pipeline maintenance and emergency repair. Precise position-tracking control is crucial for the in-pipe plugging operation of a PIPR. The anchoring module is the ke...

DOAJ Open Access (DOAJ) DOI: 10.3390/machines14060675

Influence of check dams on water and sediment processes and deposition patterns under simulated rainfall conditions

Zhiwei Cui, Peng Li, Tian Wang, Shaobo Xue et al. • Geoderma (2024)

The Loess Plateau in China has the highest soil erosion and water loss rates in the world. Therefore, check dams, which are more useful engineering measures, have been established to improve soil and water conservation in small watershed. T...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.geoderma.2023.116758

Study on Damage Behavior and Anti-Explosion Performance of Steel Fiber-Reinforced Cellular Concrete Under Underwater Contact Explosion

Hu Huang, Shubo Dai, Kelei Cao, Changxing Tang et al. • Buildings (2026)

To explore the damage mitigation mechanism of steel fiber-reinforced cellular concrete (SFR-CC) under underwater explosion loading, this study systematically analyzes two key variables: steel fiber volume fraction (0.5%, 1.0%, 1.5%, and 2.0...

DOAJ Open Access (DOAJ) DOI: 10.3390/buildings16101975

Restoration of the Zoige alpine wetland played a role in the recent reduction in water yield in the Source Region of the Yellow River

Nana Zhao, Edward Johnson, Lingyao Meng, Muyuan Ma et al. • HydroResearch

Ecological restoration efforts have been actively promoted in the Source Region of the Yellow River (SRYR) since the late 1990s, but their hydrological effects remain poorly understood. This study quantified long-term runoff changes from 19...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.hydres.2026.09.004

The formation of nitro-aromatic compounds under high NO<sub><i>x</i></sub> and anthropogenic VOC conditions in urban Beijing, China

Y. Wang, M. Hu, M. Hu, Y. Wang et al. • Atmospheric Chemistry and Physics (2019)

Nitro-aromatic compounds (NACs), as important contributors to the light absorption by brown carbon, have been widely observed in various ambient atmospheres; however, their formation in the urban atmosphere was little studied. In this work,...

DOAJ Open Access (DOAJ) DOI: 10.5194/acp-19-7649-2019

Effect of fire-source location on flame behavior and temperature distribution in subway carriages with multiple lateral openings

Xinyu Wang, Guoqing Zhu, Xuyao Qi, Guowei Zhang et al. • Case Studies in Thermal Engineering (2026)

Urban rail transit has been widely adopted to alleviate surface traffic congestion. However, subway fire safety remains a critical concern because of the confined carriage space, high occupant density, and complex ventilation conditions. Mo...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.csite.2026.108501

Collision Avoidance Strategies for Uncrewed Aircraft Systems in Structured Airspace Using a Roundabout Intersection

Skyler Hawkins, Jaya Sravani Mandapaka, Logan McCorkendale, Zachary McCorkendale et al. • IEEE Open Journal of Vehicular Technology (2025)

The increasing size of the Uncrewed Aircraft System (UAS) ecosystem necessitates effective infrastructure and Collision Avoidance (CA) systems to facilitate high-density UAS traffic in urban environments. Unfortunately, current-generation A...

DOAJ Open Access (DOAJ) DOI: 10.1109/OJVT.2025.3562581