Results 41 to 50 of about 286,313 (268)
WAVE PROPAGATION ANALYSIS IN A PRESSURE-WAVE-REFRIGERATOR [PDF]
Modern Physics Letters B, 2005 Pressure wave refrigerators (PWR) refrigerate the gas through periodical expansion waves. Due to its simple structure and robustness, PWR may have many potential applications if the efficiency becomes competitive with existing alternative devices.
W. ZHAO +4 more
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Anorectal Dysfunction in Systemic Sclerosis: Clinical Phenotypes and Functional Patterns
Arthritis Care &Research, EarlyView.Objective The aim of this study was to characterize specific physiologic defects in anorectal dysfunction in systemic sclerosis (SSc) using anorectal manometry (ARM), evaluate associations with gastrointestinal (GI) and extraintestinal clinical phenotypes, and explore potential serologic markers for risk stratification.
Timothy Kaniecki +6 more
wiley +1 more source
Internal combustion engine exhaust pipe flow simulation. Part I: theoretical aspects
Ingeniería e Investigación, 2009 Unsteady gas flow theory can be used for simulating a spark ignition internal combustion engine’s exhaust system, using pressure waves. The method explained here is based on the discretization of interpolated spaces (called meshes) which are located ...
Juan Miguel Mantilla +2 more
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Shock Pressure of Breaking Wave
Coastal Engineering 1966, 1966 Shock pressure due to breaking wave was studied experimentally and analytically for the case of two-dimensional regular oscillatory wave. In the first part of this paper, important characteristics of shock pressures were described, which were obtained by using the newly designed pressure gauges of very high frequency responces ( 10 ~ 10000 c/s ).
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Advanced Engineering Materials, EarlyView.A flexure‐based variable stiffness structure is developed by integrating phase‐change modulation and adhesive interfacial locking of gallium. The design enables a wide stiffness variability, transitioning from soft, flexible behavior to rigid, load‐supporting performance.
Sungjin Kim +2 more
wiley +1 more source
Advanced 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
About some aspects of explosion in the soils of artificial structures
Nauka ta progres transportu, 2013 Purpose. To define actual and prospective research guidelines of the destruction of patchy soil masses under the influence of explosions as well as the peculiarities of the explosion waves expansion throughout the boundaries of mediums separation in ...
V. P. Berbushenko, O. V. Marushyak
doaj
Investigation on the propagation characteristics of pressure wave during managed pressure drilling
Frontiers in Energy ResearchThe small difference between formation pressure and fracture pressure in offshore oil and gas reservoirs poses a huge challenge to drilling. Managed pressure drilling (MPD) technology, as a drilling technique that can accurately control bottomhole ...
Yanan Hou +9 more
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Advanced Engineering Materials, EarlyView.Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
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Advanced Engineering Materials, EarlyView.Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov +4 more
wiley +1 more source