Zobrazeno 1 - 10
of 1 489
pro vyhledávání: '"grey theory"'
Publikováno v:
Discover Applied Sciences, Vol 6, Iss 10, Pp 1-19 (2024)
Abstract In recent years, with the continuous development of urban transportation, the durability of concrete bridge structures has become increasingly prominent. Many in-service concrete bridges exhibit issues such as cracks, excessive deflection, a
Externí odkaz:
https://doaj.org/article/dee3cc40b8104fb78382185689128dc3
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-17 (2024)
Abstract Highway maintenance performance measurement is the key to implementing performance-based contracting (PBC). However, contractors have struggled with accurately understanding client intent and translating performance goals into measurable ind
Externí odkaz:
https://doaj.org/article/0866e37c123f4cbc88400fec24057d0f
Publikováno v:
Meikuang Anquan, Vol 55, Iss 9, Pp 12-21 (2024)
Coal mine gas accidents are highly destructive and have a wide range of hazards. Predicting the amount of gas emitted from the mining face and the volume fraction of gas in the return air roadway can provide important basis for formulating gas contro
Externí odkaz:
https://doaj.org/article/cfe1c6834bcc4058844e0b012195126b
Publikováno v:
Journal of Engineering and Applied Science, Vol 71, Iss 1, Pp 1-10 (2024)
Abstract To address the issue of excessive mid-span deflection in rigid frame-continuous girder bridges during the later stages of normal use and to provide a basis for setting the pre-camber of this bridge type. This study focused on a specific rigi
Externí odkaz:
https://doaj.org/article/acfb2734c8cf4e59af7b29357ab5e996
Autor:
Fengyi Chen
Publikováno v:
AIMS Mathematics, Vol 9, Iss 7, Pp 17917-17931 (2024)
In the process of grey prediction modeling, the accumulation of original non-negative sequences can enhance the inherent regularity of data and the smoothness of sequences. The estimated method of background values and derivative values greatly affec
Externí odkaz:
https://doaj.org/article/bd1b373b456a4fe6b81a1421e74a14d2
Publikováno v:
Journal of Open Innovation: Technology, Market and Complexity, Vol 10, Iss 3, Pp 100328- (2024)
This study addresses the complexities of fostering innovative behavior in Vietnam’s IT firms, a critical aspect of maintaining competitive advantage in the rapidly evolving IT sector. Using an integrated Grey theory incorporating Delphi and Decisio
Externí odkaz:
https://doaj.org/article/b21c2e90cc63459393fee4cb12fa6d49
Publikováno v:
IEEE Access, Vol 12, Pp 139609-139619 (2024)
With the development of the brain-computer interface, it is possible to assess the image quality based on an electroencephalogram (EEG) signal, which is essential to construct a quality assessment system that accords with the characteristics of the h
Externí odkaz:
https://doaj.org/article/c441f8c98113441b830e2cbe0ff0ac2f
Publikováno v:
You-qi chuyun, Vol 43, Iss 1, Pp 103-110 (2024)
[Objective] Factors impacting the demand of natural gas vary across regions in China, resulting in distinct data characteristics within corresponding datasets. The availability of adequate sample data for long-term forecasting is limited. Therefore,
Externí odkaz:
https://doaj.org/article/5ef9fb525daf47328b04705e38cd3a3e
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 1630-1650 (2023)
Abrasion resistance of concrete is essential for the safety assessment of hydraulic structures subject to sandy water scouring. In this study, ten types of concrete specimens were designed to investigate the effect of nano-SiO2 (NS) and polypropylene
Externí odkaz:
https://doaj.org/article/3df90e6d272c485bb23819b8bf809cc5
Publikováno v:
Heliyon, Vol 10, Iss 6, Pp e27662- (2024)
Insufficient emphasis on planning and control is one of the major causes of several delayed and cost-overrun construction projects. To improve such performances, many studies have been conducted on project control techniques such as Earned Value Anal
Externí odkaz:
https://doaj.org/article/075f096233414df09bf120a711d20dfd