Results 21 to 30 of about 4,536 (193)

Formulas to Explain Popular Oscillometric Blood Pressure Estimation Algorithms

open access: yesFrontiers in Physiology, 2019
Oscillometry is the blood pressure (BP) measurement principle of most automatic cuff devices. The oscillogram (which is approximately the blood volume oscillation amplitude-external pressure function) is measured, and BP is then estimated via an ...
Anand Chandrasekhar   +6 more
doaj   +1 more source

Designing of dynamic calculation model of press with pump-accumulator drive working stroke

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2012
Peculiarities of hydraulic press ram moving on different stages of the working stroke on the basis of experimental oscillogram are considered. Rated scheme of the working stroke with pointing out the assumptions of the “hard” hydraulic drive model is ...
E. S. Korchak, O. M. Shinkarenko
doaj   +3 more sources

Aerosol particle molecular spectroscopy [PDF]

open access: yes, 1985
The molecular spectroscopy of a solution particle by structure resonance modulation spectroscopy is discussed [S. Arnold and A. B. Pluchino, "Infrared Spectrum of a Single Aerosol Particle by Photothermal Modulation of Structure Resonances," Appl.
Arnold, S., Murphy, E. K., Sageev, G.
core   +1 more source

New Method for Graphical Reproduction of Cathode-Ray Oscillograms [PDF]

open access: yesReview of Scientific Instruments, 1959
An automatic device for tracing the wave form of a repetitive oscilloscope pattern has been developed. The wave form is accurately reproduced and enlarged by a conventional X-Y recorder. Because optical and pulse techniques are used, the system is capable of reproducing signals displayed on even the fastest available oscilloscopes.
Robert K. Swank, Eugene A. Mroz
openaire   +3 more sources

Математическая модель дробного осциллятора Ван дер Поля-Эйри

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki
В работе предложена математическая модель нелинейного осциллятора Ван дер Поля-Эйри с учетом наследственности. Нелинейность осциллятора обусловлена наличием зависимости коэффициента трения от квадрата функции смещения, что характерно для осциллятора Ван ...
Салимова, А.И.   +1 more
doaj   +1 more source

Influence of the Cut Axial Depth on Surface Roughness at High-Speed Milling of Thin-Walled Workpieces

open access: yesНаука и техника, 2021
The paper presents the results of research on the dynamics of end milling of thin-walled work-pieces having complex geometric shapes. Since the milling process with shallow depths of cut is characterized by high intermittent cutting, the proportion of ...
A. I. Germashev   +4 more
doaj   +1 more source

Dubovsky’s Class of Mathematical Models for Describing Economic Cycles with Heredity Effects

open access: yesFractal and Fractional
The article is devoted to the study of economic cycles and crises, which are studied within the framework of the theory of N.D. Kondratiev long waves (K-waves). The object of the study is the fractional mathematical models of S. V.
Danil Makarov   +2 more
doaj   +1 more source

Counter operation in nonlinear micro-electro-mechanical resonators [PDF]

open access: yes, 2013
This paper discusses a logical operation of multi-memories that consist of coupled nonlinear micro-electro-mechanical systems (MEMS) resonators. A MEMS resonator shows two coexisting stable states when nonlinear responses appear.
Hikihara, Takashi, Yao, Atsushi
core   +2 more sources

Development of a front end ASIC for Dark Matter directional detection with MIMAC

open access: yes, 2010
A front end ASIC (BiCMOS-SiGe 0.35 \mum) has been developed within the framework of the MIMAC detector project, which aims at directional detection of non-baryonic Dark Matter.
Ahlen   +18 more
core   +3 more sources

Impact of noise on the behaviour and biochemical parameters of the crayfish Cherax quadricarinatus and Cherax destructor

open access: yesJournal of Zoology, Volume 328, Issue 2, Page 146-164, February 2026.
The aim of this study was to evaluate the effect of acoustic stimulus on the behavioural and biochemical responses of two species of crayfish, Cherax destructor and Cherax quadricarinatus. Our results showed that exposure to noise significantly affects in both species motility parameters, agonistic interactions and acoustic signals emitted. In terms of
Clarissa De Vita   +6 more
wiley   +1 more source

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