Results 111 to 120 of about 127,932 (307)

Advancing Direct Alcohol Fuel Cells: Innovations in Composite‐Based Electrocatalysts and Polymer Support Materials for Enhanced Efficiency

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This graphical abstract emphasizes the working principle and the various essential factors of the direct methanol fuel cell (DMFCs). Additionally, various parameters, such as the nanoparticle's size and shape, the nature of the electrolyte, the type of support materials, and their fabrication process, also play essential roles in the functioning of the
Kirti Mishra   +3 more
wiley   +1 more source

ANALYSIS OF TESTING METHODS FOR VOLUME HYDRAULIC MACHINES AND HYDRAULIC TRANSMISSIONS

open access: yesBulletin of the National Technical University "KhPI". Series: Hydraulic machines and hydraulic units
Мета. Створення рекомендацій щодо використання методів випробувань об'ємних гідромашин і гідроприводів для вітчизняних фахівців в галузі машинобудування гідрофікованих транспортних засобів і технологічного обладнання, а також в навчанні студентів. Методика досліджень.
Grygoriy Avrunin   +3 more
openaire   +3 more sources

Strategic planning optimisation of "Napoli Est" water distribution system [PDF]

open access: yes, 2007
The District Meter Areas (DMA) design is an innovative methodology of water networks management, based on the pressure patterns control and on the water flows monitoring, in order to reduce water losses and to optimize the water systems management.
FONTANA N   +3 more
core  

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios   +4 more
wiley   +1 more source

Precise and fast digital twin mapping method for hydraulic support attitude

open access: yesGong-kuang zidonghua
A precise and fast digital twin mapping method for hydraulic support attitude in fully mechanized working face is proposed to address the problems of low precision, large time delay, and difficulty in balancing precision and time delay in implementing ...
LIU Meng   +6 more
doaj   +1 more source

Assessment of worm gearing for helicopter transmissions [PDF]

open access: yes
A high-efficiency hydrostatic worm gear drive for helicopter transmissions is assessed. The example given is for a large cargo helicopter with three 4000-kW engines and transmission reduction ratio of 110. Also contained are: an efficiency calculation, a
Chaiko, Lev
core   +1 more source

A Review on Recent Trends of Bioinspired Soft Robotics: Actuators, Control Methods, Materials Selection, Sensors, Challenges, and Future Prospects

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This article reviews the current state of bioinspired soft robotics. The article discusses soft actuators, soft sensors, materials selection, and control methods used in bioinspired soft robotics. It also highlights the challenges and future prospects of this field.
Abhirup Sarker   +2 more
wiley   +1 more source

自动化生产线工件翻转装置设计

open access: yesJixie chuandong, 2010
Workpiece turnover device is an important part of automatic production line,design quality is directly influence on the level of automatic production line.Mechanical structure of workpiece turnover device for stiffness automatic production line is ...
曹玉宝
doaj  

Patient‐Mounted Neuro Optical Coherence Tomography for Targeted Minimally Invasive Micro‐Resolution Volumetric Imaging in Brain In Vivo

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Herein, a patient‐mounted neuro optical coherence tomography system that integrates a 5 degrees‐of‐freedom skull‐mounted robot (Skullbot) with a 0.6 mm neuroendoscope for targeted, minimally invasive deep brain imaging, is developed. The system offers high‐resolution imaging with precise deployment, demonstrated through successful tumor imaging in a ...
Chao Xu   +7 more
wiley   +1 more source

Design of Electro-Hydraulic Double Helix Drive Orienter for Coiled Tubing Drilling

open access: yesShiyou jixie, 2020
To address the problems of time-consuming, low accuracy of current coiled tubing drilling hydraulic orienter, and the complicated structure of electro-hydraulic drive orienter, an electro-hydraulic double helix drive orienter for coiled tubing drilling ...
Ma Weiguo, Wang Li, Wang Chengfei
doaj  

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