Results 41 to 50 of about 596,539 (168)

A CFD-Based Surrogate for Pump–Jet AUV Maneuvering

Journal of Marine Science and Engineering
Prediction of the maneuvering performance of autonomous underwater vehicles equipped with pump–jet propulsion remains computationally intensive when relying solely on high-fidelity computational fluid dynamics.
Younhee Kwon, Dong-Hwan Kim, Jeonghwa Seo, Hyun Chung   +3 more
doaj   +1 more source

Performance Evaluation Methodology for Patterned Micro-Heaters Used in Gas Sensor Applications

Applied Sciences
Hazardous gas detection requires portable, low-power sensors with high sensitivity, where micro-heater design is critical for semiconductor metal oxide (SMO) sensors.
Jiyoung Yoon, Yuntae Ha, Juhye Kim, Dong Geon Jung, Jinhyoung Park   +4 more
doaj   +1 more source

Multivariate Identification via Linear Projection of Eigenvectors

Mathematics
A data-driven system identification algorithm that utilizes eigenvectors is presented. The eigenvectors are extracted from a unified solution space comprising both input and output subspaces. To expand the input subspace, a higher-order subspace from the
Dong-Hwan Kim
doaj   +1 more source

Effects of Model-Specific Parameters on the Development of Custom Module in PX4 Autopilot Software-in-the-Loop

International Journal of Aerospace Engineering
Software-in-the-loop simulation tools have been extensively used in the development of safety-critical software. Utilizing these tools substantially accelerates software development, eliminating potential risks and resource costs of physical experiments.
Abera Tullu, Sunghun Jung, Sangchul Lee, Sangho Ko   +3 more
doaj   +1 more source

A Practical Prognostics Method Based on Stepwise Linear Approximation of a Nonlinear Degradation Model

Applied Sciences
Prognostics aims to predict the remaining useful life (RUL) of an in-service system based on its degradation data. Existing methods, such as artificial neural networks (ANNs) and their variations, often face challenges in real-world applications due to ...
Dawn An
doaj   +1 more source

Effect of ammonia and natural gas Co-fueling on combustion and greenhouse gas emissions in a marine diesel engine

Case Studies in Thermal Engineering
This study experimentally investigates the effects of fuel blending strategies on combustion and emission characteristics in a single-cylinder, four-stroke marine diesel engine with natural gas and ammonia.
Gyeongtae Park, Cheolwoong Park, Ilpum Jang, Chansoo Park, Minki Kim, Kyunghoon Kim, Yongrae Kim, Jeongwoo Lee   +7 more
doaj   +1 more source

Mobile Ambients and P-Systems

J. Univers. Comput. Sci., 1999
JUCS - Journal of Universal Computer Science Volume Nr.
Petre,Ion, Petre,Luigia
openaire   +4 more sources

Enhanced Ethanol Sensing Performance and Humidity Tolerance of Ce/ZnO-Incorporated In₂O₃ Nanocubes

Micromachines
This work presents the design and evaluation of cerium and zinc oxide-incorporated indium oxide (Ce/ZnO-In2O3) nanocube composites synthesized via a hydrothermal process for advanced ethanol gas sensing.
Yijun Yang, Dong Geon Jung, Daewoong Jung   +2 more
doaj   +1 more source

Leveraging Bluetooth and GPS Sensors for Route-Level Passenger Origin–Destination Flow Estimation

Sensors
Accurate estimation of passenger origin–destination (OD) matrices is critical for optimizing public transportation systems, yet conventional methods face challenges, such as incomplete alighting data, high infrastructure costs, and privacy concerns. With
Junming Xu, Zhenxing Pan, Cheng Zhang, Xiaoguang Yang   +3 more
doaj   +1 more source

Dependency Analysis of Mobile Systems [PDF]

, 2002
We propose an Abstract Interpretation-based analysis for automatically detecting the dependences between the channels used by the agents of a mobile system. We focus our study on the mobile systems written in the pi-calculus. We first refine the standard semantics in order to restore the link between channels and the agents which have declared them. We
openaire   +2 more sources