Results 111 to 120 of about 21,765 (305)
Advanced Engineering Materials, EarlyView.It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti +11 more
wiley +1 more source
Sprengel's Deformity: A Paediatric Case Report
CureusSprengel's deformity is a conspicuous anomaly, affecting one or both scapulas. The congenital elevation of the scapula is frequently accompanied by additional anomalies, such as rib, vertebral, or muscular deformities, among which are rib fusion or vertebral deformity. Defects in the cervical vertebrae are most likely to result in Klippel-Feil syndrome,
Malik, Aashita +4 more
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Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source
Energy Exploration & Exploitation, 2017 Thermal stress deformation can cause serious casing damage and failure problems in thermal recovery wells. In this paper, mechanical performance experiments on rock and cement are carried out first, and then a finite element mechanical model of thermal ...
Yong Chen, Xu Peng, Hao Yu
doaj +1 more source
Molded composite pyrogen igniter for rocket motors [PDF]
, 1978 A lightweight pyrogen igniter assembly including an elongated molded plastic tube adapted to contain a pyrogen charge was designed for insertion into a rocket motor casing for ignition of the rocket motor charge. A molded plastic closure cap provided for
Heier, W. C., Lucy, M. H.
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Size-independent Shear Band Formation in Amorphous Nanowires made from Simulated Casting
, 2010 Molecular dynamics simulations indicate that surfaces strongly influence the strain localization behavior of amorphous nanowires in tension. A sample preparation routine that simulates casting was employed to facilitate the relaxation of the sample ...
Shi, Yunfeng
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Advanced Engineering Materials, EarlyView.Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek +5 more
wiley +1 more source
Nitrogen-Foamed Cement Slurry for Mitigating Casing Deformation during Hydraulic Fracturing
Youqicang pingjia yu kaifaDuring the multi-stage volumetric fracturing of shale gas horizontal wells, the problem of casing deformation severely restricts the efficient development of shale gas.
LIU KUI +6 more
doaj
Electromechanical and Dynamic Characterization of In-House-Fabricated Amplified Piezo Actuator [PDF]
, 2012 A diamond-shaped amplified piezo actuator (APA) fabricated using six multilayered piezo stacks with maximum displacement of 173 μm at 175V and the amplification factor of 4.3.
Panda, PK +4 more
core
On global deformation quantization in the algebraic case
Journal of Algebra, 2007 We give a proof of Yekutieli's global algebraic deformation quantization result which does not rely on the choice of local sections of the bundle of affine coordinate systems. Instead we use an argument inspired by algebraic De Rham cohomology.
openaire +5 more sources