Results 31 to 40 of about 4,701 (230)

Математическая модель дробного осциллятора Ван дер Поля-Эйри

Vestnik 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., Паровик, Р.И.   +1 more
doaj   +1 more source

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

Наука 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, V. A. Logominov, S. I. Dyadya, Y. V. Kozlova, V. A. Krishtal   +4 more
doaj   +1 more source

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

Fractal 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, Roman Parovik, Zafar Rakhmonov   +2 more
doaj   +1 more source

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

, 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, Allaoua, Boni, C. Grignon, D. Santos, Dzahini, F. Mayet, G. Bosson, Giomataris, Giomataris, Green, Grignon, J.P. Richer, Linan-Cembrano, Mayet, O. Bourrion, O. Guillaudin, Santos, Spergel   +18 more
core   +3 more sources

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

Journal of Zoology, EarlyView.
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, Maria Ceraulo, Manuela Mauro, Giuseppa Buscaino, Vincenzo Arizza, Marco Arculeo, Mirella Vazzana   +6 more
wiley   +1 more source

Vocalizations Reveal Species Differences in Endangered Lion Tamarins (Primates, Callitrichidae)

American Journal of Primatology, Volume 88, Issue 1, January 2026.
Spectral parameters of vocalizations distinguish lion tamarin species. Peak frequency, center frequency, and frequency at 5% and 95% were the most informative measures for separating species, with the trill being the vocalization that showed the most differences, and Leontopithecus caissara being the most distinct species of all.
Maria Carolina Rodella Manzano, Ricardo J. Sawaya, Gabriela Cabral Rezende, Maria Luisa da Silva   +3 more
wiley   +1 more source

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

, 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

Solution‐Processed Magnesium Oxide Buffer Layer for Improved Stability of CsPbI2Br Perovskite Solar Cells

Solar RRL, Volume 10, Issue 1, January 2026.
An interfacial engineering strategy incorporating magnesium oxide (MgO) between the ZnO electron transport layer and CsPbI2Br is demonstrated. This approach yields perovskite solar cells with improved film morphology, charge mobility, and stability. Proton‐irradiated MgO‐incorporated devices retain their performance after 11 weeks, whereas the control ...
Zhuldyz Yelzhanova, Gaukhar Nigmetova, Dana Mukasheva, Hryhorii P. Parkhomenko, Gulzhan Zhumadil, Damir Aidarkhanov, Marat Kaikanov, Timur Elebessov, Taomiao Wang, Alikhan Kalmakhanbet, Dawei Duan, Hanlin Hu, Tri T. Pham, Mannix P. Balanay, Askhat N. Jumabekov, Annie Ng   +15 more
wiley   +1 more source

A Novel Approach to Study Atmospheric Neutrino Oscillation [PDF]

, 2013
We develop a general theoretical framework to analytically disentangle the contributions of the neutrino mass hierarchy, the atmospheric mixing angle, and the CP phase, in neutrino oscillations.
Ge, Shao-Feng, Hagiwara, Kaoru, Rott, Carsten   +2 more
core   +2 more sources

Design and Experimental Research of a Hybrid Cartesian Robot for Knee Joint Operations

Journal of Robotics, Volume 2026, Issue 1, 2026.
Background The aim of this study lies in the development of a hybrid Cartesian robot for knee joint surgeries, to eliminate the shortcomings of existing surgical robots. Methods To develop a hybrid Cartesian robot, we used a combination of a Cartesian manipulator and a serial manipulator, both with three degrees of freedom (DOF).
Assylbek Jomartov, Kassymbek Ozhikenov, Amandyk Tuleshov, Askar Seidakhmet, Azizbek Abduraimov, Aziz Kamal, Moldir Kuatova, Nurgali Kumarbek, Shahram Payandeh   +8 more
wiley   +1 more source