Results 31 to 40 of about 208 (166)

Building Extraction Model Based on UAV Remote Sensing Image: A Case Study of Bohai Bay Area in Shandong Province, China

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
To address the issues in traditional earthquake disaster assessment, such as low efficiency, high risk of manual surveys, and limitations of two‐dimensional data, this study selects 16 districts and counties in the Bohai Bay area of Shandong Province (with a total area of 23,635 square kilometers, over 90% of which are rural areas) as the research area.
Hongbin Wu, Bin Yang, Chuancheng Yang, Hongtai Xu, Fengjie Guo, Xu Zheng, Lei Wang, Zhiheng Li, Jia-wen Zhou   +8 more
wiley   +1 more source

Artificial Neural Network‐Based Optimization of Anaerobic Digestion in Municipal Wastewater Treatment

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Improving methane production is essential for enhancing the self‐sufficiency of wastewater treatment plants (WWTPs), with anaerobic digestion (AD) acting as the key sustainability driver by serving as an energy recovery mechanism. Artificial intelligence (AI) offers an effective way to manage the AD process without requiring a detailed understanding of
Aliaa Saleh, Atıf Emre Demet, Viknesh Andiappan   +2 more
wiley   +1 more source

Design of an Innovative CFS Purlin (Zigmax®) by Experimental Testing

ce/papers, Volume 8, Issue 6, Page 337-342, December 2025.
Abstract ZIGMAX® is an innovative cold‐formed steel solution developed for roof purlins stabilized by steel sheeting or sandwich panels. This hybrid cross‐section merges the benefits of traditional Z and Σ profiles, delivering improved structural performance.
Hélder D. Craveiro, Luís Laím, João Pedro Martins, Rui Simões, Sree Sabari, Mariana Matos, Luís Simões da Silva   +6 more
wiley   +1 more source

Reconsidering a proportional system of timber-frame structures through ancient mathematics books: a case study on the Muryangsujŏn Hall at Pusŏksa Buddhist Monastery

Journal of Asian Architecture and Building Engineering, 2019
The mathematics references in ancient China, the Zhoubi Suanjing and the Jiuzhang Suanshu, present information on formative ideas of ancient people and their perception of objects.
Juhwan Cha, Young Jae Kim
doaj   +1 more source

Structural Efficiency Of Cold-Formed Steel Purlins [PDF]

International conference KNOWLEDGE-BASED ORGANIZATION, 2015
Abstract Cold-formed steel structures represents an alternative to classic buildings made of hot rolled steel profiles which bring a lot of savings based on advanced calculations and also some practical measures in order to provide optimum strength and weight ratio. Due to these advantages, cold-formed steel structures are
Vlad Cucu, Daniel Constantin, Dan-Ilie Buliga   +2 more
openaire   +1 more source

Experimental data from out‐of‐plane shake‐table tests on unreinforced masonry gables

Earthquake Spectra, Volume 41, Issue 5, Page 4227-4245, December 2025.
This article presents a dataset from an experimental campaign investigating the out‐of‐plane (OOP) seismic response of unreinforced masonry (URM) gables in existing buildings. Addressing a critical gap in published research, the dataset provides novel experimental data on the incremental dynamic OOP behavior of three URM gables tested under seismic ...
Satyadhrik Sharma, Nicolò Damiani, Marta Bertassi, Marco Smerilli, Michele Mirra, Igor Lanese, Elisa Rizzo Parisi, Gerard J O’Reilly, Francesco Messali, Francesco Graziotti   +9 more
wiley   +1 more source

OPTIMIZATION OF PURLINS CROSS-SECTION EXPOSED TO FIRE

STEPGRAD XVI (2024)
<p>In practice, consideration of fire protection for structural elements mainly occurs after the adopted dimensions of sections. However, this procedure leads to not the most cost-effective solution in general. To find the optimal solution, it is necessary to apply one of the optimization methods. The presented optimization of purlins RHS
Milan Bursać, Svetlana Kostić
openaire   +2 more sources

Artificial intelligence assisted prediction of optimum operating conditions of shell and tube heat exchangers: A grey‐box approach

CAAI Transactions on Intelligence Technology, Volume 10, Issue 2, Page 349-358, April 2025.
Abstract In this study, a Grey‐box (GB) model was developed to predict the optimum mass flow rates of inlet streams of a Shell and Tube Heat Exchanger (STHE) under varying process conditions. Aspen Exchanger Design and Rating (Aspen‐EDR) was initially used to construct a first principle model (FP) of the STHE using industrial data.
Zahid Ullah, Iftikhar Ahmad, Abdul Samad, Husnain Saghir, Farooq Ahmad, Manabu Kano, Hakan Caliskan, Nesrin Caliskan, Hiki Hong   +8 more
wiley   +1 more source

Performance of Partially Concrete Filled C-purlin Beam-Slab System: Numerical Investigation

NTU Journal of Engineering and Technology
Lightweight cold-formed steel beams are widely utilized in roofing systems.  Recently, engineers have increasingly used concrete-filled cold-formed steel tube beams for flooring systems due to their sufficient structural performance.
Alyaa A. Al-Attar, Ahmed W. Al Zand, Mohammed Ch. Liejy, Azrul A. Mutalib, Idan I. Ghdhban   +4 more
doaj   +1 more source

Analysis and Design of Cold-Formed Z Purlins

International Journal for Research in Applied Science and Engineering Technology, 2022
Abstract: Structures built by cold-formed segments of primary members secondary members and roof panels provide a different solution for a great variety of areas such as housing, storage, education, etc The design of cold-formed sections has obvious complexity in view of the buckling of sections vis-à-vis stress in the compression element, especially ...
openaire   +1 more source