Results 61 to 70 of about 22,862 (300)

SEALING PERFORMANCE ANALYSIS AND STRUCTURAL OPTIMIZATION DESIGN OF NEW BEAM SEAL

open access: yesJixie qiangdu, 2023
In order to improve the sealing performance of the beam seal, the structural parameters of the beam seal were used as design variables, and the optimization design was carried out.
YAN GuoHua, REN XinJiang, LIU Yong
doaj  

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced 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

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Economical justification of effectiveness the sealing rockmass above the gas generator for borehole coal gasification [PDF]

open access: yes, 2010
W artykule przedstawiono celowość stosowania uszczelniania skał stropu generatora gazu w procesie podziemnego zgazowania węgla. Na przykładzie jednej z kopalń Zachodniego Donbasu pokazano zmiany charakterystyk deformacji warstw skalnych, przemieszczeń ...
Diczkowskij, R. E.   +2 more
core  

Effectiveness of Duct Sealing and Duct Insulation in Multi-Family Buildings. Final Report [PDF]

open access: yes, 1997
This research investigated the cost-effectiveness of sealing and insulating the accessible portions of duct systems exposed to unconditioned areas in multifamily housing.
Modera, M., Tuluca, A., Karins, N.H.
core   +1 more source

Development and Application of Capsule-like Packer for Concentric Tubing

open access: yesShiyou jixie, 2017
The concentric tubing sand washing can effectively address the sand washing problems in low-pressure coefficient, easy pollution and easy lost reservoirs. The self-sealing packer is the key component for the concentric tubing sand washing operation.
Kan Changbin   +5 more
doaj  

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu   +10 more
wiley   +1 more source

The effectiveness of sealing VD Karolinka using the aperture analyzed by EIS method [PDF]

open access: yes, 2015
Bachelor thesis is dealing with recognition of effectiveness of the sealing wall of earth dam Karolinka by electrical impedance spectrometry method. Sealing wall was installed to the body of the dam in 2013 during a complex reconstruction.
Fránková, Hana
core  

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

open access: yesAdvanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl   +4 more
wiley   +1 more source

Performance of Rim-Seals in Upstream and Downstream Cavities over a Range of Flow Coefficients

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2017
This paper presents measurements of CO2 concentration and pressure in a new, highly instrumented and versatile, 1.5-stage gas turbine facility. The rig, which has been specifically designed for investigations related to hot gas ingestion, features ...
Marios Patinios   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy