Results 61 to 70 of about 169,803 (308)

Разработка систем дискретного гидропривода с тонким формированием импульсов расхода [PDF]

open access: yes, 2008
Приведен анализ существующих управляющих гидроаппаратов, обоснована необходимость разработки и производства нового класса гидроаппаратов дискретного действия, управляемых устройствами ЧПУ, дано описание конструкции и принципа работы дискретного ...
Das, Marco   +8 more
core   +1 more source

Nonlinear Control of Hydraulic Drives

open access: yesIFAC Proceedings Volumes, 1984
Abstract The application of modern unconventional control theory is described for a hydraulic cylinder. These systems are significantly characterized by noncontinuous non-linearities. A complete model of the hydraulic system is derived. A simplified and partly linearized model underlies two control concepts: The first concept deals with the ...
U. Dietz, E. Prochnio
openaire   +1 more source

Muscular hydraulics drive larva-polyp morphogenesis

open access: yesCurrent Biology, 2022
Development is a highly dynamic process in which organisms often experience changes in both form and behavior, which are typically coupled to each other. However, little is known about how organismal-scale behaviors such as body contractility and motility impact morphogenesis.
Anniek Stokkermans   +11 more
openaire   +4 more sources

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

open access: yesAdvanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

TRACKING CONTROL FOR A HYDRAULIC DRIVE WITH A PRESSURE COMPENSATOR [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2015
A problem of tracking control is considered for a hydraulic drive with a pressure compensator that is widespread in the equipment of heavy-duty machines. Method.
S. V. Aranovskiy   +2 more
doaj   +1 more source

Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance

open access: yesAdvanced Functional Materials, EarlyView.
A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer   +2 more
wiley   +1 more source

Investigation of the mathematical model of volumetric hydraulic drive with relay control as applied to the cargo crane winch [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета
The known variants of volumetric hydraulic drives of lifting and technological mechanisms are considered and analyzed. The areas of application of pumping and accumulator hydraulic drives, with various types of regulation, and options for their ...
Zayarny S.L., Baranov K.A.
doaj   +1 more source

Hydraulic motor with swinging planetary drive of bevel gears and its force & efficiency calculation [PDF]

open access: yes, 2007
A new kind of hydraulic motor with offset swining planetary drive of bevel gears and the application in Capstan is presented; the researched of the calculation of the efficiency of the mechanism is made.
Huran, Liu   +4 more
core  

High‐Throughput Exfoliation of Optoelectronic‐Grade MoS2 via Turbulent‐Flow Wet Jet Milling

open access: yesAdvanced Functional Materials, EarlyView.
A scalable wet jet milling exfoliation method is demonstrated for producing optoelectronic‐grade MoS2 nanosheets using environmentally friendly ethyl cellulose in ethanol dispersion media. Guided by fluid dynamics modeling, this approach is optimized to achieve record‐high exfoliation throughput and concentration.
Maryam Khalaj   +7 more
wiley   +1 more source

TECHNIQUE OF FUNCTIONAL UNIFICATION OF ADAPTIVE HYDRAULIC DRIVE MODULE CAPABLE OF LOAD STABILIZATION ON THE WORKING BODY OF MOBILE MACHINES

open access: yesAdvanced Engineering Research, 2018
Introduction. Issues on the functional unification of the adaptive hydraulic  drive  module  are  studied.  For  the  first  time,  self-adapting   mechanisms   are   considered   taking   into   account adaptive intercommunication of the load control ...
V. A. Pershin, T. A. Khinikadze
doaj   +1 more source

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