Results 31 to 40 of about 38,273 (265)

Effects of Rashig rings placed in interplate spaces and the rheological properties of the liquid phase on power consumption in a gassed reciprocating plate column [PDF]

open access: yesHemijska Industrija, 2003
The power consumption in a gassed reciprocating plate column with Rashig rings placed in interplate spaces increases with both increasing vibration intensity and content of solid particles but decreases with increasing the superficial gas velocity ...
Aleksić Mirko Đ.   +4 more
doaj   +1 more source

The reasonableness and feasibility of replacing standing wave vibration with air piston mode vibration in thermoacoustic refrigerator

open access: yesHeliyon
On the basis of analyzing the longitudinal forced vibration of the gas column in the resonator of a half-wavelength standing wave thermoacoustic refrigerator, the idea of replacing the standing wave vibration with the first-order piston mode vibration of
Jianxin Wang, Xiangbin Liu
doaj   +1 more source

Method Improvements of Testing Modulus of Soil Based on Free-Vibration Column

open access: yesAdvances in Civil Engineering, 2019
It is difficult to directly measure the dynamic elastic modulus of soils when the strain is less than 10−4, though the dynamic shear modulus can be easily obtained by the free-vibration testing method.
Dandan Jin   +4 more
doaj   +1 more source

Grillage Analysis of Plates for Vibration and Stability [PDF]

open access: yesEngineering and Technology Journal, 2007
This study deals with the problem of approximating the dynamic and static analysis of plates by using equivalent grid-framework model. The emphasis, for plate analysis, is on the stability and vibration analysis.
Sabih Al-Sarraf, Ammar Ali
doaj   +1 more source

Parameters Optimization and Energy Absorption Evaluation of the Steel Ball Friction Energy Absorber

open access: yesShock and Vibration, 2021
The energy absorber is used to simulate the reaction of a working piece subjected to a vibration stimulus, by which the consistent and repeatable reactions to the tool’s vibration inputs could be achieved.
Bin Gong
doaj   +1 more source

Post-Buckling Spring Vibration Isolator Using Silicone Gel Column: A Theoretical and Experimental Study

open access: yesApplied Sciences, 2021
Based on the design of a post-buckling silicone gel column (SGC), a novel type of low-frequency vibration isolator is presented, and the vibration isolation performance of this isolator is studied by combining theoretical analysis and experimental ...
Ji-Hou Yang   +3 more
doaj   +1 more source

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

open access: yesFEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer   +7 more
wiley   +1 more source

Free Vibration Analysis of Steel Framed Structures [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2019
This study based on free vibration analysis and study the behavior of framed structure under different frequency of vibration using ANSYS software and shaking table.
Ayesha Siddika   +3 more
doaj   +1 more source

Long‐Term Neurologic Exam Findings in People Diagnosed and Treated During Acute HIV Infection

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Evaluate clinical and laboratory correlates of abnormal neurologic exam findings after acute HIV infection (AHI). Methods Participants from the RV254/SEARCH 010 cohort in Bangkok underwent standardized neurologic examinations at Weeks 0 (AHI), 12, 96, and 288 following antiretroviral therapy (ART).
Kathryn B. Holroyd   +118 more
wiley   +1 more source

Ground-Borne Vibration Prediction in a Metro Depot Using Hybrid Train-Soil-Pile-Structure Interactions

open access: yesVibration
Train-induced ground vibrations can propagate into pile foundations, potentially causing undesirable vibration in nearby buildings, laboratories housing vibration-sensitive equipment, and manufacturing facilities for high-precision processes.
Ziyu Tao   +3 more
doaj   +1 more source

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