Results 141 to 150 of about 116,310 (262)

Wpływ Nieliniowej Charakterystyki Tłumienia Tarciem Wewnętrznym na Drgania Wymuszone

open access: yesEngineering Transactions, 1959
The author sets out to find a method of a appraisal of a damping characteristic considered to be non-linear. For this purpose, he assumes that the damping is a non-linear function of velocity, the relation in question being: R(v) = av + Bv3.
Z. Osiński
doaj  

Field‐Frustrated Cooperative Distortions: Suppressing Jahn‐Teller Ordering via Microwave Annealing

open access: yesAdvanced Science, EarlyView.
Microwave annealing decouples local Jahn‐Teller distortions from long‐range cooperative ordering in CuFe2O4, stabilizing a metastable cubic phase that remains locally distorted yet globally symmetry‐frustrated. Synchrotron XRD, PDF, XPS, and in situ thermal cycling reveal how non‐equilibrium MW‐phonon interactions suppress cooperative orbital‐lattice ...
Daryoosh Vashaee, Kelvin Dsouza
wiley   +1 more source

Microstructure cantilever beam for current measurement

open access: yesSouth African Journal of Science, 2009
Most microelectromechanical systems (MEMS) sensors are based on the microcantilever technology, which uses a broad range of design materials and structures.
H.A.B. Mustafa, M.T.E. Khan
doaj  

Programmable Elastic Wave Control Via Mechanical‐Acoustic Interaction in Bistable Metamaterials

open access: yesAdvanced Science, EarlyView.
A mechanically programmable metamaterial based on mechanical‐acoustic interaction enables reconfigurable elastic wave control through bistable state switching. Spatial encoding of peak and valley states tunes band structures and transmission, achieving low‐frequency vibration suppression, waveguiding, and energy localization.
Yuanyuan Li   +7 more
wiley   +1 more source

Learning Moisture‐Induced Damage From Vision: Diffusion Models for Real‐Time Monitoring of Additive Manufacturing Processes

open access: yesAdvanced Science, EarlyView.
We introduce a vision‐based real‐time monitoring system for additive manufacturing that detects subtle moisture‐induced degradation via a diffusion model‐based framework. The approach enables nondestructive assessment of moisture‐induced damage level and mechanical performance and establishes a practical route toward more intelligent, reliable, and ...
Jiyoung Jung   +4 more
wiley   +1 more source

Mechanical Activation of Piezo1 Drives Osteoarthritis Through Kdm5c‐Mediated Epigenetic Silencing

open access: yesAdvanced Science, EarlyView.
Excessive mechanical stress activates Piezo1, triggering Ca2+‐dependent cytoskeletal forces that deform the nucleus and reduce H3K4me3. Kdm5c demethylates H3K4me3 at Col2a1 and Runx3 promoters. Kdm5c knockout rescues degradation. Repurposed telmisartan directly inhibits Kdm5c, blocking this axis and showing disease‐modifying efficacy in mouse OA models
Tianyou Kan   +13 more
wiley   +1 more source

Non-Fourier Motion in the Fourier Spectrum

open access: yes, 2008
Typically, image motion analysis in the frequency domain is performed according to the Motion From Fourier Coefficients, or MFFC principle. However, this principle excludes a class of motion that does not generate power spectra containing the origin of ...
Steven Beauchemin
core  

Nanomaterials for Allergy Diagnosis and Treatment: Advances, Opportunities and Translational Challenges

open access: yesAdvanced Science, EarlyView.
Nanomaterials offer dual applications in allergy management. For diagnosis, nanomaterials enhance analytical sensitivity and improve detection in specific IgE and functional assays such as the basophil activation test (BAT). For allergen‐specific immunotherapy, nanomaterials enable allergen masking and controlled release, and effectively modulate the ...
Madiha Habib   +8 more
wiley   +1 more source

Active power filters: behaviour and performance analysis

open access: yes, 2006
Negli ultimi anni i dispositivi di elettronica di potenza si sono diffusi in differenti campi di applicazione e per diversi impieghi. L’ampliamento dei loro campi di applicazione è legato alla conoscenza del comportamento dei dispositivi di elettronica ...
Tricoli, Pietro
core  

Home - About - Disclaimer - Privacy