Results 71 to 80 of about 149,170 (267)

Experimental Research on Variable Stiffness Property of Hydraulic Ball Joint for Rail Vehicles

open access: yes机车电传动, 2019
One hydraulic ball joint with variable stiffness characteristics for rail vehicles was proposed, which used hydraulic mechanism embedded in rubber elastomer to improve dynamic stiffness.
Xingwu DING   +5 more
doaj  

Multifunctional Adhesive Hydrogel for Rapid Cardiac Hemostasis and Antibacterial Protection

open access: yesAdvanced Materials Technologies, EarlyView.
A multifunctional polyacrylamide/gelatin/tannic acid hydrogel (PGT) is presented for rapid cardiac hemostasis under wet, dynamic conditions. Surface tannic acid coating enables instantaneous wet adhesion, accelerates coagulation, and confers antibacterial activity within a single platform.
Seoha Kim   +5 more
wiley   +1 more source

Multilayer Biobased Poly(ethylene furanoate)/Graphene Oxide Nanofibrous Membranes With Directional Water Transport for Efficient Microplastics Filtration

open access: yesAdvanced Materials Technologies, EarlyView.
A self‐assembled multilayer biobased PEF/GO nanofibrous membrane was developed by electrospinning for efficient PLA microplastics (MPs) filtration. The membrane combines superhydrophilicity, directional water transport, mechanical robustness, and a synergistic size‐exclusion interception and electrostatic repulsion MPs separation mechanism, enabling ...
Juraij Kandiyil   +6 more
wiley   +1 more source

The FBC Ash as a Hydraulic Ingredient of Hydraulic Lime

open access: yesProcedia Engineering, 2017
Abstract This work is focused on the possibilities of utilization of ashes from fluidized bed combustion, i.e. FBC ashes, for the manufacturing of hydraulic lime. Alternative hydraulic binders are becoming very popular in the present due to requirements on reducing CO2 emissions.
Dvořák, Karel   +2 more
openaire   +2 more sources

Microfabrication of Soft Millirobots Propelled by Low Voltage Electrohydraulic Actuators

open access: yesAdvanced Materials Technologies, EarlyView.
Manual layer‐by‐layer assembly is replaced by wafer‐level MEMS batch fabrication for compliant polymer‐based electrohydraulic actuators. The microfabricated devices integrate sacrificially defined microcavities, Parylene‐C‐sealed inlets, and multilayer polymer–metal films.
Shai Shmulevich   +2 more
wiley   +1 more source

The Application of the Hydraulic Accumulator Technology on the RFID Sleeve

open access: yesShiyou jixie, 2016
The existed common fracturing sleeves have the technological issues like restricted fracturing stages,unachieved full bore of string,frequent tripping of switching tool.To address the issues,the possible application of hydraulic accumulator technology on
Zhao Chenxi, Dai Wenchao, Qin Jinli
doaj  

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

open access: yesAdvanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Bitkisel Bir Hidrolik Akışkan Üretimi ve Performansının Hidrolik Yağ ile Karşılaştırılması

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2019
Günümüzdeki modern dünyada hidrolik; gün geçtikçe birçok alanda insanların yaşantısında çok önemli pay sahibiolmaktadır. Hidrolikte enerjiyi sağlayan temel unsur akışkandır ve akışkana yön veren ekipmanlar valfler olarakadlandırılır.
Salih Korucu, Gürcan Samtaş
doaj   +1 more source

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

open access: yesAdvanced Robotics Research, EarlyView.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino   +7 more
wiley   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

open access: yesAdvanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu   +5 more
wiley   +1 more source

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