Results 31 to 40 of about 7,018,110 (249)
Guidelines on sustainable mobility : shared transport [PDF]
, 2023 This is the fourth published guideline document, in a series of documents which are being published under the Resident First project headed by the Local Councils’ Association (LCA) and endorsed by all Local Councils in Malta and Gozo.
Zammit, Antoine +1 more
core
Archives of Acoustics, 2019 The locally resonant sonic material (LRSM) is an artificial metamaterial that can block underwater sound. The low-frequency insulation performance of LRSM can be enhanced by coupling local resonance and Bragg scattering effects.
Bo YUAN, Yong CHEN, Bilian TAN, Bo LI
doaj +1 more source
Design of double negativity elastic metamaterial
International Journal of Smart and Nano Materials, 2015 A metamaterial model that possesses simultaneously negative effective mass density and negative effective Young’s modulus is proposed in this study. Dispersion curves and dynamic responses of the model are investigated.
Y.C. Su, C.T. Sun
doaj +1 more source
Acoustic Transmission Characteristics Based on H-Type Metamaterials
IEEE Access, 2019 To achieve the artificial manipulation of the acoustic wave front, and to produce high-efficiency acoustic focusing effect, this paper designed an $H$ -type locally resonant metamaterial structure based on a two-dimensional three-component local ...
Shuai Tang, Jianning Han
doaj +1 more source
Study on vibration bandgap characteristics of a cantilever beam type local resonance unit
Xibei Gongye Daxue XuebaoThis article proposes a novel phononic crystal configuration consisting of a through-hole cantilever beam and a mass block, and conducts numerical analysis and experimental verification on the bandgap characteristics of a two-dimensional periodic array ...
SUN Xuyang +4 more
doaj +1 more source
Vibration of Periodic Drill-Strings with Local Sources of Resonance
Vibration, 2021 A new class of drill-strings is proposed for attenuating undesirable vibrations to ensure effective operation. The drill-string is provided with passive periodic inserts, which are integrated with sources of local resonance (LR).
Wael Akl +3 more
doaj +1 more source
FEBS Letters, EarlyView.We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace +6 more
wiley +1 more source
Common carotid intima media thickness and ankle-brachial pressure index correlate with local but not global atheroma burden:a cross sectional study using whole body magnetic resonance angiography [PDF]
, 2014 Common carotid intima media thickness (CIMT) and ankle brachial pressure index (ABPI) are used as surrogate marker of atherosclerosis, and have been shown to correlate with arterial stiffness, however their correlation with global atherosclerotic burden ...
Belch, Jill J. F.; id_orcid +37 more
core +2 more sources
Universal and local time components in Schumann resonance intensity [PDF]
Annales Geophysicae, 2008 We extend the technique suggested by Sentman and Fraser (1991) and discussed by Pechony and Price (2006), the technique for separating the local and universal time variations in the Schumann resonance intensity.
A. P. Nickolaenko, M. Hayakawa
doaj +1 more source
Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential
FEBS Letters, EarlyView.Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta +3 more
wiley +1 more source