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Ground calibration tests of the laser altimeter (LIDAR) for MMX mission

Hiroki Senshu, Takahide Mizuno, Toru Nakura, Ryo Suetsugu et al. • Progress in Earth and Planetary Science (2025)

Abstract The spacecraft for the Japanese Martian Moon eXploration mission is equipped with a LIDAR laser altimeter. The slant range continuously measured by the LIDAR is used for the correction of the local topography and the orbit and atti...

DOAJ Open Access (DOAJ) DOI: 10.1186/s40645-025-00705-7

Generating Daily High-Resolution Regional XCO<sub>2</sub> by Deep Neural Network and Multi-Source Data

Wenjie Tian, Lili Zhang, Tao Yu, Dong Yao et al. • Atmosphere (2024)

CO2 is one of the primary greenhouse gases impacting global climate change, making it crucial to understand the spatiotemporal variations of CO2. Currently, commonly used satellites serve as the primary means of CO2 observation, but they of...

DOAJ Open Access (DOAJ) DOI: 10.3390/atmos15080985

Attitude Control of a Vehicle with Active Airfoil and Suspension Systems Using Integral Action for Body Angle and Tire Deflection

Syed Babar Abbas, Iljoong Youn • Actuators (2026)

This paper presents a novel approach to design an attitude motion control strategy of a vehicle to mitigate lateral or longitudinal inertial forces acting on the passenger during cornering, braking, and acceleration maneuvers. The collabora...

DOAJ Open Access (DOAJ) DOI: 10.3390/act15060317

Concept of Sporadic E Monitoring Using Space-Based Low Power Multiple Beacon-Systems

Jurgen Vanhamel, Marc Berwaerts, Stefano Speretta, Sevket Uludag • Atmosphere (2024)

Current monitoring systems to detect sporadic E use ground-based setups, ionosondes, and the network of GNSS satellites in order to assess the phenomenon of sporadic E. This paper aims to monitor sporadic E using a miniature space-based pla...

DOAJ Open Access (DOAJ) DOI: 10.3390/atmos15111306

Investigation of Defect Effects on Adhesively Bonded Joint Strength Using Cohesive Zone Modeling

Majid Jamal-Omidi, Mohammad Reza Mohammadi Suki • Journal of Mechanical Engineering (2018)

In this paper, effects of the defect in an adhesively bonded joint have been investigated using cohesive zone modeling. Consequently, a 3D finite element model of a single lap-joint is constructed and validated with experiments. Strength pr...

DOAJ Open Access (DOAJ) DOI: 10.2478/scjme-2018-0023

Study on Flight Performance of Propeller-Driven UAV

Rui-lin Liu, Zhong-jie Zhang, Yu-fei Jiao, Chun-hao Yang et al. • International Journal of Aerospace Engineering (2019)

The engine performance test at altitudes of 0-7000 m was carried out on the high-performance test bench of the Unmanned Aerial Vehicle (UAV) piston engine. The flight performance of UAV was studied, including propeller thrust characteristic...

DOAJ Open Access (DOAJ) DOI: 10.1155/2019/6282451

A Novel Inertial-Aided Star Pattern Matching Method for Distributed Multiple FoVs

Rong Wang, Yuxuan Cao, Jianye Liu, Zhi Xiong • International Journal of Aerospace Engineering (2020)

An aerospace vehicle in high-speed flight involves distributed multiple fields of view (FoVs) of a star sensor, and the maneuvering of the vehicle requires inertial-aided star pattern matching. Accordingly, an inertial-aided star pattern ma...

DOAJ Open Access (DOAJ) DOI: 10.1155/2020/2676210

Two-dimensional metallic tantalum ditelluride with an intrinsic basal-plane activity for oxygen reduction: A microkinetic modeling study

Yu Wang, Kun Zhou • Green Energy & Environment (2022)

Two-dimensional (2D) materials have exhibited great potential for replacing costly Pt for oxygen reduction reaction (ORR) because of their distinctive structural features and high pre-site activity. However, their performance is generally h...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.gee.2020.11.003

Urban Sprawl and Changes in Land-Use Efficiency in the Beijing–Tianjin–Hebei Region, China from 2000 to 2020: A Spatiotemporal Analysis Using Earth Observation Data

Meiling Zhou, Linlin Lu, Huadong Guo, Qihao Weng et al. • Remote Sensing (2021)

Sustainable development in urban areas is at the core of the implementation of the UN 2030 Agenda and the Sustainable Development Goals (SDG). Analysis of SDG indicator 11.3.1—Land-use efficiency based on functional urban boundaries—provide...

DOAJ Open Access (DOAJ) DOI: 10.3390/rs13152850

Lie similarity analysis of MHD Casson fluid flow with heat source and variable viscosity over a porous stretching sheet

Thenmozhi D, M. Eswara Rao, Ch. Nagalakshmi, RLV.Renuka Devi et al. • International Journal of Thermofluids (2024)

The current study presents a novel examination of heat transfer properties in a magnetohydrodynamic (MHD) flow of Casson fluid across a porous stretching sheet, uniquely incorporating the effects of heat source and variable viscosity. Unlik...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.ijft.2024.100804

Controlling Frost Propagation on Polymeric Surfaces Using SI‐ATRP Chemical Micropatterning

Miisa J. Tavaststjerna, Stephen J. Picken, Santiago J. Garcia • Advanced Materials Interfaces (2025)

Abstract Micropatterned surfaces with both hydrophilic and hydrophobic regions are relevant for a wide range of applications from fuel cells to water harvesting systems. The preferential nucleation of water on hydrophilic regions can also b...

DOAJ Open Access (DOAJ) DOI: 10.1002/admi.202400838

Evaluation of joint and muscle function of paediatric upper and lower extremities

Mohamed Afifi, Mohamed Afifi, Muhammad Uba Abdulazeez, Muhammad Uba Abdulazeez et al. • Frontiers in Bioengineering and Biotechnology (2025)

Road traffic crashes are the leading cause of injuries, disabilities, and fatalities for children and young adults. Extremity joint injuries have been identified as one of the contributing factors to chronic disabilities among children in r...

DOAJ Open Access (DOAJ) DOI: 10.3389/fbioe.2025.1667865

The Temporal-Based Forest Disturbance Monitoring Analysis: A Case Study of Nature Reserves of Hainan Island of China From 1987 to 2020

Han Xiao, Han Xiao, Xiaoqian Zhang, Xiaoqian Zhang et al. • Frontiers in Environmental Science (2022)

Forest disturbance monitoring can provide scientific data for the decision making and management of nature reserves. LandTrendr algorithm has been applied to identify forest disturbances on a long-time scale through appropriate segmentation...

DOAJ Open Access (DOAJ) DOI: 10.3389/fenvs.2022.891752

Heterogeneous Cytoskeletal Force Distribution Delineates the Onset Ca2+ Influx Under Fluid Shear Stress in Astrocytes

Mohammad M. Maneshi, Mohammad M. Maneshi, Frederick Sachs, Susan Z. Hua et al. • Frontiers in Cellular Neuroscience (2018)

Mechanical perturbations increase intracellular Ca2+ in cells, but the coupling of mechanical forces to the Ca2+ influx is not well understood. We used a microfluidic chamber driven with a high-speed pressure servo to generate defined fluid...

DOAJ Open Access (DOAJ) DOI: 10.3389/fncel.2018.00069

Observer-Based Robust Finite-Time Trajectory Tracking Control for a Stratospheric Satellite Subject to External Disturbance and Actuator Saturation

Shurui Huang, Yueneng Yang, Ye Yan, Shifeng Zhang et al. • International Journal of Aerospace Engineering (2022)

The stratospheric satellite is regarded as an ideal stratosphere flight platform and is able to accomplish various missions such as surveillance, earth observation, and remote sensing, which requires a robust and effective trajectory tracki...

DOAJ Open Access (DOAJ) DOI: 10.1155/2022/1601771

Evaluating key predictors of breast cancer through survival: a comparison of AFT frailty models with LASSO, ridge, and elastic net regularization

Senyefia Bosson-Amedenu, Emmanuel Ayitey, Francis Ayiah-Mensah, Luyton Asare • BMC Cancer (2025)

Abstract Background Frailty models are extensively utilized in survival analysis to address unobserved heterogeneity among individuals. However, selecting the most robust model for survival prediction, especially in the context of high-dime...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12885-025-14040-z

Ethical and social implications of approaching death prediction in humans - when the biology of ageing meets existential issues

Marie Gaille, Marco Araneda, Clément Dubost, Clémence Guillermain et al. • BMC Medical Ethics (2020)

Abstract Background The discovery of biomarkers of ageing has led to the development of predictors of impending natural death and has paved the way for personalised estimation of the risk of death in the general population. This study inten...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12910-020-00502-5

Smoking behavior change and the risk of pneumonia hospitalization among smokers with diabetes mellitus

Dong-Woo Han, Wonyoung Jung, Kyu Na Lee, Kyungdo Han et al. • Scientific Reports (2023)

Abstract Smoking patients with diabetes mellitus (DM) are at greater risk of developing pneumonia. How smoking behavior changes affect the risk of pneumonia hospitalization, however, remains unclear. Therefore, we investigated the associati...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41598-023-40658-9