Results 91 to 100 of about 145,679 (305)

Multiscale Architecture and Mechanics of the Cell Nucleus: Implications for Disease, Bioengineering and Nanomedicine

open access: yesAdvanced Science, EarlyView.
Nuclear mechanical properties are inherently scale‐dependent, arising from a hierarchical architecture that spans DNA, chromatin, the nuclear envelope, and condensates. Experimental techniques and theoretical models are integrated into a cohesive multiscale framework linking nanoscale structural features to organelle‐level mechanical behavior.
Xinran Liu   +15 more
wiley   +1 more source

Experimental and Numerical Study on Damage Characteristics of Web Frame Structure Under Conical Impact

open access: yesJournal of Marine Science and Engineering
This paper investigates the dynamic performance of web frame structures under the impact of a conical hammer head. Compared with existing research on flat plates and stiffened panels, web frame structures exhibit significant differences in load-bearing ...
Zhengjie Li   +5 more
doaj   +1 more source

Study on Cumulative Damage Law of Stainless Steel-Reinforced Concrete Columns under Step Impact Loading

open access: yesAdvances in Materials Science and Engineering, 2019
In this study, an ultrahigh drop hammer impact test system was adopted for multiple horizontal impact tests on stainless steel-reinforced concrete columns and ordinary-reinforced concrete columns with the same longitudinal reinforcement diameter.
Bo Wu, Shixiang Xu, Guoxue Zhang
doaj   +1 more source

An Experimental Study of the Feasibility of Identifying the Impact Damages of Reinforced Concrete Piers Using a Modal Frequency Method

open access: yesAdvances in Civil Engineering, 2020
In this research study, horizontal impact tests were carried out on five reduced scale pier models using China’s most advanced multifunctional ultrahigh heavy drop hammer impact test system and DHDAS dynamic signal acquisition and analysis system. Due to
Xiwu Zhou   +4 more
doaj   +1 more source

Small scale production and storage quality of dry-milled degermed maize products for tropical countries [PDF]

open access: yes, 2009
The present study aims to propose a comprehensive appropriate technological package for small-scale processing of maize flour, which meets consumer demand for quality and achieves extended shelf life.
Davo, Agbéwonu Kosi   +2 more
core  

Coupled Vacancy and Phonon‐Scattering Engineering Drive Defect Evolution Toward Multifunctional High‐Performance Bi2Te3 Thermoelectrics

open access: yesAdvanced Science, EarlyView.
ZnSb reduces carrier concentration and suppresses Te volatilization, while Se substitution within QLs softens phonons and enhances anharmonicity. Swapped bilayers near twin boundaries strengthen phonon scattering and interlayer bonding. As a result, the optimal sample achieves an ultra‐high zT ∼1.51, cooling temperature difference of ∼70 K, power ...
Ruiheng Li   +12 more
wiley   +1 more source

Pile Driving Effects on Nearby Building [PDF]

open access: yes, 2013
Piles are used to support many major structures such as buildings and bridges. It is known that pile driving activity creates vibrations in the ground and may affect nearby building and structure.
Abdul Ghani, Abdul Naser   +1 more
core  

Thermal performance enhancement of a heat exchanger using metal chain as a novel turbulator [PDF]

open access: yes, 2021
Enhancing heat transfer in a heat exchanger system is critical to many industrial applications. There are many problems that require in-depth studies to find solutions.
Ghitheeth, Ali Hussein
core  

In Situ Measurements of Interfacial Contact Pressure During Impact Hammer Tests [PDF]

open access: yes
Understanding the nonlinear dynamical contact interactions within joints is crucial for understanding and predicting the dynamics of assembled structures. In spite of this, most experimental investigations focused on the global vibration behavior, since the local interactions at the interface cannot be observed with standard techniques.
B. Seeger   +5 more
openaire   +1 more source

An Estimation of Error-Free Frequency Response Function from Impact Hammer Testing

open access: yesJSME International Journal Series C, 2004
The spectrum of impulse response signal from the impact hammer testing is widely used to obtain the frequency response function (FRF). However the FRFs obtained from the impact hammer testing have not only leakage errors but also finite record length errors when the record length for the signal processing is not sufficiently long.
Se Jin AHN, Weui Bong JEONG, Wan Suk YOO
openaire   +2 more sources

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