Results 31 to 40 of about 46,219 (267)

Quasi-Static Failure Criteria for Concrete / Quasi-Statyczne Kryteria Zniszczenia Betonu

Archives of Civil Engineering, 2010
W pracy prezentuje sie zachowanie betonu przy obciazeniach quasi-statycznych przy jednoosiowym sciskaniu i rozciaganiu oraz w płaskim stanie naprezenia.
Jankowiak T., Łodygowski T.
doaj   +1 more source

Fission of quasi-static dissipative solitons in chiral nematics

Giant
Dissipative solitons in liquid crystals (LCs) are represented by three-dimensional solitary waves of director deformation called directrons. The only one exception on the quasi-static counterparts of directrons has ever been observed in achiral nematics.
Jian-Zhou Lin, Ao-Jie Wu, Li-Ting Zhu, Ke-Hui Wu, Sen-Sen Li, Lu-Jian Chen   +5 more
doaj   +1 more source

Quasi-static optical parametric amplification

Optica, 2021
High-gain optical parametric amplification is an important nonlinear process used both as a source of coherent infrared light and as a source of nonclassical light. In this work, we experimentally demonstrate an approach to optical parametric amplification that enables extremely large parametric gains with low energy requirements.
Marc Jankowski, Nayara Jornod, Carsten Langrock, Boris Desiatov, Alireza Marandi, Marko Lončar, Martin M. Fejer   +6 more
openaire   +3 more sources

Intelligent Tutoring Systems for Adult Learning in STEM Disciplines

New Directions for Adult and Continuing Education, EarlyView.
ABSTRACT Intelligent tutoring systems (ITS) are reshaping adult learning in STEM by providing adaptive, data‐driven instruction across classrooms, workplaces, and informal environments. In the context of ITS, this article compares generative AI, which creates personalized explanations and practice materials, with explainable AI, which focuses on ...
Jill Zarestky, Amanda R. Lager Gleason
wiley   +1 more source

Damage Localization of Beam Bridges Using Quasi-Static Strain Influence Lines Based on the BOTDA Technique

Sensors, 2018
The diagnosis of damage in a bridge superstructure using quasi-static strain influence lines (ILs) is promising. However, it is challenging to accurately localize the damage in a bridge superstructure due to limited numbers of strain IL measurement ...
Yang Liu, Shaoyi Zhang
doaj   +1 more source

Quasi‐static acoustic tweezing thromboelastometry [PDF]

Journal of Thrombosis and Haemostasis, 2017
Essentials Blood coagulation measurement during contact with an artificial surface leads to unreliable data. Acoustic tweezing thromboelastometry is a novel non-contact method for coagulation monitoring. This method detects differences in the blood coagulation state within 10 min. Coagulation data were obtained using a much smaller sample volume (4 μL)
R G, Holt, D, Luo, N, Gruver, D B, Khismatullin   +3 more
openaire   +2 more sources

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito, Chiara Meneghini, Alice Galli, Luca Gallo, Pierfrancesco Mitrotti, Paola Dimartino, Marianna Inglese, Cinzia Zatti, Alessandro Lupini, Andrea Pilotto, Alessandro Padovani, Micol Avenali, Enza Maria Valente, Cristina Tassorelli, Silvia P. Caminiti   +14 more
wiley   +1 more source

Experimental Study on the Effect of Pentanediol as a Chain Extender on the Mechanical Properties of MDI Polyurethane Foams [PDF]

علوم و تکنولوژی پلیمر, 2019
Hypothesis: Energy-absorbing materials and structures have many uses, especially in protecting human lives. As a result, interest in discovering the applied new materials have increased. Polyurethane foams are used in a variety of energy absorbers.
Iman Nateghi-Boroujeni, Gholamhossein Liaghat, Hamed Ahmadi   +2 more
doaj   +1 more source

A quasi-static poromechanical model of the lungs

Biomechanics and Modeling in Mechanobiology, 2022
The lung vital function of providing oxygen to the body heavily relies on its mechanical behavior and the interaction with its complex environment. In particular, the large compliance and the porosity of the pulmonary tissue are critical for lung inflation and air inhalation, and the diaphragm, the pleura, the rib cage and intercostal muscles all play ...
Patte, Cécile, Genet, Martin, Chapelle, Dominique   +2 more
openaire   +5 more sources

Electroencephalographic Normalization as a Biomarker of Clinical Recovery in Down Syndrome Regression Disorder

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Down syndrome regression disorder is a syndrome characterized by subacute loss of cognitive, behavioral, and functional abilities in individuals with Down syndrome. Electroencephalography abnormalities are frequently observed during evaluation, but it remains unclear whether these findings represent a dynamic marker of disease ...
Jonathan D. Santoro, Mackenzie Silverman, Maeve C. Lucas, Mariam M. Yousuf, Samuel T. Otey, Stella V. Gray, Brittany Jordan, Madeline D. Kahan, Latanya D. Agurs, Michelle Van Hirtum Das, Deborah Holder, Devin King, Eileen A. Quinn, Ryan Kammeyer, Michael S. Rafii   +14 more
wiley   +1 more source