470 research outputs found
An experimental study on the lateral pile–soil interaction of offshore tetrapod piled jacket foundations in sand
No full textRecently, tetrapod piled jacket (TPJ) foundations have shown considerable promise in offshore developments, due to the increases in power capacity and water depth for offshore wind turbines. This paper presents a set of centrifuge tests to look into the lateral loading behaviour of TPJ foundations in sand, with the overall load–displacement responses of the foundation as well as the soil resistance and internal forces on or within individual piles being examined carefully. Test results show that the back-row piles are more likely to be pulled out when the TPJ foundation is loaded laterally along the diagonal direction compared to when loaded along the orthogonal direction. The lateral soil resistance per unit length on the back-row pile(s) is approximately 60% of that on the front-row one(s) in the orthogonal loading case, and only about 40% in the diagonal loading case. Moreover, although the TPJ foundation is in its form a special case of pile groups, it is highlighted in the present study that the former case exhibits distinct loading behaviour from the latter case due to the typically large overturning moment encountered by the foundations for offshore wind turbines. Finally, the p-multipliers of the piles are demonstrated to be dependent on pile deflections, but independent on soil depths, and as a result, a modified pm model is proposed to provide guidance for the design of TPJ foundations in sand.The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author
R32 Compressor for Air conditioning and Refrigeration applications in China
No full textThis paper evaluates the compressor performance and reliability impact by using R32 refrigerant for air conditioning (residential and commercial system); Performance and reliability impacts are compared with different popular refrigerants used in China, for example, R410A & R22 for AC. The design improvement on the scroll compressor will be discussed in order to reach required efficiency and reliability; these improvements include lubrication, internal heat management, motor design, and vapor injection technologies, etc
Decoding soil health constraints in regional agroecosystems: Machine learning reveals microbial enzymatic thresholds and drivers
No full texthttp://dx.doi.org/10.13039/501100001809 National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100018647 RUDN Universityhttp://dx.doi.org/10.13039/501100017549 Science and Technology Innovation 2025 Major Project of Ningbo Municipalit
Part-Whole Relational Few-Shot 3D Point Cloud Semantic Segmentation
No full textThe author wishes to extend sincere appreciation to Professor Lin Shi for the generous provision of equipment support, which significantly aided in the successful completion of this research. Furthermore, the author expresses gratitude to Associate Professor Ning Li and Teacher Wei Guan for their invaluable academic guidance and unwavering support. Their expertise and advice played a crucial role in shaping the direction and quality of this research.Peer reviewe
Research and Exploration on the National Traditional Sports Resources in Lancang River Valley under Culture Oriented Background
No full textAnalysis of heavy precipitation caused by the vortices in the lee of the Tibetan Plateau from TRMM (the Tropical Rainfall Measuring Mission) observations
No full textA dynamic IS-LM business cycle model with two time delays in capital accumulation equation
No full textAbstractIn this paper, we analyze a augmented IS-LM business cycle model with the capital accumulation equation that two time delays are considered in investment processes according to Kalecki’s idea. Applying stability switch criteria and Hopf bifurcation theory, we prove that time delays cause the equilibrium to lose or gain stability and Hopf bifurcation occurs
Growth of carbon nanocoils using Fe–Sn–O catalyst film prepared by a spin-coating method
No full textAbstract</jats:p
Hypoxia‐responsive miRNA‐21‐5p inhibits Runx2 suppression by targeting SMAD7 in MC3T3‐E1 cells
No full text
- …
