|
|
|
|
|
Jiaqi Liu, Shengchun Piao, Minghui Zhang, Shizhao Zhang, Junyuan Guo and Lijia Gong
Oceanic fronts involved by ocean currents led to strong gradients of temperature, density and salinity, which have significant effects on underwater sound propagation. This paper focuses on the impact of the oceanic front on three-dimensional underwater ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Carlos César Piedrahita Escobar
AbstractDownloadsReferencesHow to Cite
|
|
|
|
|
|
|
|
|
|
|
Jens M. Hovem and Hefeng Dong
Acoustics is important for all underwater systems for object detection, classification, surveillance systems, and communication. However, underwater acoustics is often difficult to understand, and even the most carefully conducted measurements may often ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Conor Husbands
Pág. Finance an - 29
Recent years have seen greater interest in the theoretical foundations of abstract finance and their intersection with questions of philosophy and sociology. In particular, exchanges between authors such as Donald MacKenzie, Timothy Johnson, Elie Ayache,...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yunying Zhou, Dongying Liu and Jun Zhu
Graphene platelets (GPLs) can be used to enhance the mechanical and electrical properties of the matrix material, which efficiently determines and improves the dynamic behavior in composite structures. Based on the first-order shear deformation theory, t...
ver más
|
|
|
|
|
|
|
|
|
|
|
Dai Liu, Zhenglin Li, Guangxu Wang and Yunfeng Liu
An undulating bottom in shallow water has a significant effect on sound propagation. An acoustic propagation experiment was carried out in the East China Sea in 2020. Measurements along two separate propagation tracks with flat and undulating bottoms wer...
ver más
|
|
|
|
|
|
|
|
|
|
|
Banglong Yu, Jun Dai, Qingdong Ruan, Zili Liu and Paul K. Chu
Carbon ion implantation was conducted on an AM60 magnesium alloy with fluences between 1 × 1016 and 6 × 1016 ions/cm2 and an energy of 35 keV. The microstructure and electrochemical properties of the samples were systematically characterized by X-ray pho...
ver más
|
|
|
|
|
|
|
|
|
|
|
Doan Thanh Trung and John G. Fisher
The effect of sintering atmosphere (O2, air, N2, N2-5% H2, and H2) on the densification, grain growth, and structure of KNbO3 was studied. KNbO3 powder was prepared by solid state reaction, and samples were sintered at 1040 °C for 1?10 h. The sample micr...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jared A. Cook, Ralph C. Smith, Jason M. Hite, Razvan Stefanescu and John Mattingly
Surrogate models are increasingly required for applications in which first-principles simulation models are prohibitively expensive to employ for uncertainty analysis, design, or control. They can also be used to approximate models whose discontinuous de...
ver más
|
|
|
|
|
|
|
|
|
|
|
Meixi Chen, James H. Hack, Xi Lin, Anderson Janotti and Robert L. Opila
The electrical passivation mechanism of benzoquinone-methanol solutions on silicon has been examined through the study of the silicon surface electronic structure. Surface photovoltage (SPV) measurements using both X-ray photoelectron spectroscopy (XPS) ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Nicodemus Edwin Widjonarko
X-ray diffraction has been a standard technique for investigating structural properties of materials. However, most common applications in the organic materials community have been restricted to either chemical identification or qualitative strain analys...
ver más
|
|
|
|
|
|
|
|
|
|
|
Haiyan Xing, Cheng Xu, Ming Yi, Shenrou Gao and Weinan Liu
Metal magnetic memory (MMM) is a nondestructive testing technology based on the magnetomechanical effect, which is widely used in the qualitative detection of stress concentration zones for welded joints. However, there is inevitable residual stress afte...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ming Li, Kefeng Liu, Hongchen Li, Yiyuan Sun, Xi Chen and Kefeng Mao
At present, some shortcomings of the research on coupling modeling of the oceanic front?sound field may need attention: (1) Most of the acoustic propagation simulation is based on ideal front models, but the application of investigated marine data is lac...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yonghui Cao, Tian Bao, Yingzhuo Cao, Pu Wang, Ou Yang, Yang Lu and Yong Cao
Compared with traditional underwater equipment powered by propeller, the manta-ray-inspired vehicle with MPF mode (Median fin/paired fin) has the advantages of stable swimming attitude, high maneuverability, and low noise, etc. As one of the sources of a...
ver más
|
|
|
|
|
|
|
|
|
|
|
Aikaterini-Flora A. Trompeta, Elias P. Koumoulos, Sotirios G. Stavropoulos, Theodoros G. Velmachos, Georgios C. Psarras and Costas A. Charitidis
Epoxy composites are widely used in primary aerospace structures, where high impact damage properties are necessary. However, challenges appear when multiple functionalities, including electrical and thermal conductivity, are needed in parallel with incr...
ver más
|
|
|
|
|
|
|
|
|
|
|
Aikaterini-Flora A. Trompeta, Elias P. Koumoulos, Sotirios G. Stavropoulos, Theodoros G. Velmachos, Georgios C. Psarras and Costas A. Charitidis
Epoxy composites are widely used in primary aerospace structures, where high impact damage properties are necessary. However, challenges appear when multiple functionalities, including electrical and thermal conductivity, are needed in parallel with incr...
ver más
|
|
|
|
|
|
|
|
|
|
|
Agnieszka Janiuk,Konstantinos Sapountzis,Jeremy Mortier,Ireneusz Janiuk
Pág. 86 - 102
We model the structure and evolution of black hole accretion disks using numerical simulations. The numerics is governed by the equations of general relativistic magneto-hydrodynamics (GRMHD). Accretion disks and outflows can be found at the base of very...
ver más
|
|
|
|
|
|
|
|
|
|
|
G. V. MÜLLER,T. AMBRIZZI
Based on previous observational studies on cold extreme events over southern South America, some recent studies suggest a possible relationship between Rossby wave propagation remotely triggered and the occurrence of frost. Using the concept of linear th...
ver más
|
|
|
|
|
|