Results 171 to 180 of about 21,765 (305)

Development of rotorcraft interior. Noise control concepts. Phase 1: Definition study [PDF]

A description of helicopter noise, diagnostic techniques for source and path identification, an interior noise prediction model, and a measurement program for model validation are ...
Manning, J. E., Moore, J. A., Yoerkie, C. A.   +2 more
core   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

3D Reconstruction for Internal Shape of Deformed Casing Based on Laser Sensor

Shiyou jixie
Shale gas casing may deform under the influence of engineering and geological factors. Changes in the internal structure of the casing can cause damages such as reduced fluid flow capacity and blockage.
Chen Chen, Fan Heng, Li Fei
doaj  

Analysis of the long-term sealing integrity of cement sheath in CO₂ storage wells. [PDF]

Sci Rep
Zhao K, Zheng S, Meng H, Ren Z, Zou Y, Fu D.   +5 more
europepmc   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Analysis on Casing Deformation and Buckling Risk in Sand Production Section of Thermal Recovery Horizontal Wells

Shiyou jixie
Considering the impact of sand production from reservoir on casing deformation and stability in thermal recovery wells, a test was conducted to investigate how high temperature steam affects the rock properties of heavy oil reservoirs.Combined with heat ...
Xiao Yao, Li Jin, Xu Tao, Yuan Weiwei, Zhang Qilong   +4 more
doaj  

Modelling of assembly error and tolerance optimization for motor based on polyhedral model and thermal deformation analysis. [PDF]

PLoS One
Zhang Y, Yang L, Ruan T, Chen L.
europepmc   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

A new hydraulic model of the left ventricle for the assessment of wall deformation [PDF]

, 2006
Van Der Smissen, Benjamin
core  

Rotordynamic stability problems and solutions in high pressure turbocompressors [PDF]

The stability of a high pressure compressor is investigated with special regard to the self-exciting effects in oil seals and labyrinths. It is shown how to stabilize a rotor in spite of these effects and even increase its stability with increasing ...
Schmied, J.
core   +1 more source