Results 51 to 60 of about 3,009 (150)

A structure‐oriented loss function for automated semantic segmentation of bridge point clouds

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 6, Page 801-816, 28 February 2025.
Abstract Focusing on learning‐based semantic segmentation (SS) methods for bridge point cloud data (PCD), this study proposes a structure‐oriented concept (SOC) with training focused on the spatial distribution patterns of bridge components, including both the horizontally absolute location of each component and its vertically relative position ...
Chao Lin, Shuhei Abe, Shitao Zheng, Xianfeng Li, Pang‐jo Chun   +4 more
wiley   +1 more source

CUDB: An improved decomposition model for orthogonal pseudo-polyhedra [PDF]

, 2011
We present a new decomposition model for Orthogonal Pseudo-Polyhedra (OPP): the Compact Union of Disjoint Boxes. This model is an improved version of the Ordered Union of Disjoint Boxes model.
Ayala Vallespí, M. Dolors, Cruz Matías, Irving   +1 more
core   +1 more source

Selection of a Propellant Feed System for the LPRE of a Small Upper Stage

International Journal of Mathematics and Physics
The design of small upper stages must meet many propulsion requirements: repeated restarts, stable operation at low mass flow rate, strict limits on mass and volume, and compatibility with limited ground infrastructure. The central engineering task is a justified selection of the liquid propellant rocket engine feed architecture for a given mission ...
A. Dintayev, M. Omarbayev, D. Tastaibek, A. Komekbayev, R. Zhunussov   +4 more
openaire   +1 more source

SPWS‐Transformer: A Study of 3D Target Detection Method Based on Lightweight Depth Prediction With Multi‐Scale Fusion

IET Image Processing, Volume 19, Issue 1, January/December 2025.
Our proposed method, in terms of accuracy, exceeds the current very mainstream model, and the model is more lightweight. ABSTRACT Advanced driver assistance systems (ADAS) mainly consist of three components: environmental perception, decision planning, and motion control. As a fundamental component of the ADAS environmental perception system, 3D object
Chang'an Zhang, Yian Wang, Ke Xu, ChunHong Yuan, Fusen Guo   +4 more
wiley   +1 more source

Induktive Randschichtnachbehandlung zur Steigerung der Korrosionsschwingfestigkeit des Radsatzwellenwerkstoffes EA4T Inductive surface layer treatment to increase the corrosion fatigue strength of the wheelset shaft material EA4T

Materialwissenschaft und Werkstofftechnik, Volume 55, Issue 6, Page 733-750, June 2024.
Effect of induction hardening on the corrosion‐fatigue strength of the wheelsetshaft material EA4T (25CrMo4+quenched and tempered) was investigated. Hardening parameter was indentified and optimized for slightly notched specimen. Moreover the electrochemical and fatigue tests were carried out for initial and hardened state.
S. Schönborn, T. Melz, J. Hasnain, H. Scheerer, T. Engler, M. Oechsner, A. Schulz, M. Steinbacher   +7 more
wiley   +1 more source

Dynamic facial expression recognition with pseudo‐label guided multi‐modal pre‐training

IET Computer Vision, Volume 18, Issue 1, Page 33-45, February 2024.
To reduce the dependency on expensive manual annotations for the dynamic expression recognition (DER) task, the authors propose a multi‐modal pre‐training method with a pseudo‐label guidance mechanism to make full use of unlabelled video data for learning informative representations of facial expressions, and achieve state‐of‐the‐art performance on the
Bing Yin, Shi Yin, Cong Liu, Yanyong Zhang, Changfeng Xi, Baocai Yin, Zhenhua Ling   +6 more
wiley   +1 more source

LIQUID PROPULSION AT IAE: VISION OF THE ACTIVITIES AND FUTURE PERSPECTIVES. doi: 10.5028/jatm.2009.010199106

Journal of Aerospace Technology and Management, 2011
This paper presents the activities in the area of liquid propulsion, which received an effective boost at the end of the 90s.
Marco F. Carvalho Torres, Daniel Soares de Almeida, Yelisetty S. Rama Krishna, Luiz Silva, Wilson Kiyoshi Shimote   +4 more
doaj  

Utilización de herramientas de cálculo complejas en el aula: desarrollo de LPRES Library

Modelling in Science Education and Learning, 2016
<span style="line-height: 120%; font-family: 'Times New Roman','serif'; font-size: 10pt; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES; mso-ansi-language: ES; mso-bidi-language: AR-SA;">Normalmente, en el aula se resuelven problemas con modelos sobre-simplificados que permiten obtener la solución manualmente.
Tizón Pulido, Juan Manuel, Sierra, Pablo, Navarro, Emilio   +2 more
openaire   +4 more sources

Fire‐Induced Carbon Loss and Tree Mortality in Siberian Larch Forests

Geophysical Research Letters, Volume 51, Issue 1, 16 January 2024.
Abstract Climate change is intensifying the fire regime across Siberia, with the potential to alter carbon combustion and post‐fire carbon re‐accumulation trajectories. Few field‐based estimates of fire severity (e.g., carbon combustion and tree mortality) exist in Siberian larch forests (Larix spp.), which limits our ability to project how an ...
Elizabeth E. Webb, Heather D. Alexander, Alison K. Paulson, Michael M. Loranty, Jennie DeMarco, Anna C. Talucci, Valentin Spektor, Nikita Zimov, Jeremy W. Lichstein   +8 more
wiley   +1 more source

Mycobacterium tuberculosis: immune response, biomarkers, and therapeutic intervention

MedComm, Volume 5, Issue 1, January 2024.
Currently, controlling the source of infection, interrupting transmission pathways, and protecting susceptible populations are key measures in tackling MTB infection. However, preventative, diagnostic, and therapeutic interventions for TB are also important in reducing the burden of the disease. First, in terms of preventing MTB infection, the Bacillus
Li Zhuang, Ling Yang, Linsheng Li, Zhaoyang Ye, Wenping Gong   +4 more
wiley   +1 more source