Results 31 to 40 of about 48,334 (266)

Submersible direct-drive progressing cavity pump rodless lifting technology

open access: yesPetroleum Exploration and Development, 2019
Submersible electrical motor direct-drive progressing cavity pump (PCP) rodless lifting was studied to solve the traditional rod-drive pump problems, such as rod-tubing wearing, low efficiency and short running time.
Zhongxian HAO   +6 more
doaj   +1 more source

PERANCANGAN SISTEM HIDROLIK PADA MESIN PRESS BAMBU LAMINASI

open access: yesRekayasa Mesin, 2023
The hydraulic system is a power transmission system by using the compressive energy of the fluid into mechanical energy to obtain a power greater than the initial power released.
Theo Satria Gumilang   +5 more
doaj   +1 more source

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

open access: yesAdvanced Robotics Research, EarlyView.
This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley   +1 more source

Energy management strategy of a novel mechanical–electro–hydraulic power coupling electric vehicle under smooth switching conditions

open access: yesEnergy Reports, 2022
To increase the transient power limit, and reduce the impact of operating condition changes on the electric vehicles’ powerful battery, it is essential to stabilize the working condition, enhance the vehicle’s dynamic performance and energy utilization ...
Lin Li   +6 more
doaj   +1 more source

RANCANG BANGUN DAN UJI UNJUK KERJA POMPA GEAR PADA SUHU FLUIDA 70 0 C (REDESIGN AND PERFOMANCE TEST FOR GEAR PUMP AT 70 DEGREES CELCIUS OF FLUIDS TEMPERATURE) [PDF]

open access: yes, 2008
The purpose of this research is cognizant of characteristic, transfer of fluid, and performance by operated Gear Pump. Material worked is ex lubricant which 77,905 cP viscosity then heated from atmospheric to 70 0 C by used heater and temperature ...
Bambang, Setyoko   +2 more
core  

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

open access: yesAdvanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska   +2 more
wiley   +1 more source

Mechanical thermal motor [PDF]

open access: yes, 1976
An apparatus is described for converting thermal energy such as solar energy into mechanical motion for driving fluid pumps and similar equipment. The thermal motor comprises an inner concentric cylinder carried by a stationary core member.
Hein, L. A., Myers, W. N.
core   +1 more source

Strategic Design of Soft Actuators in Translational Medical Robotics for Human‐Centered Healthcare

open access: yesAdvanced Robotics Research, EarlyView.
Soft robotics enables biocompatible, compliant medical devices, but clinical translation requires design‐driven engineering beyond materials. This perspective reviews implantable, surgical, and wearable systems by actuation mechanism, highlighting how optimized architectures and integration improve mechanical interfacing, adaptability, and durability ...
Ho Jun Jin   +3 more
wiley   +1 more source

Anti-backlash circuit for hydraulic drive system Patent [PDF]

open access: yes, 1966
Antibacklash circuit for hydraulic drive ...
Acord, J. D.
core   +1 more source

Evaluating the Utilities of Foundation Models in Single‐Cell Data Analysis

open access: yesAdvanced Science, EarlyView.
This study delivers the first systematic, task‐level evaluation of single‐cell foundation models across eight core analytical tasks. By benchmarking 10 leading models with the scEval framework, it reveals where foundation models truly add value, where task‐specific methods still dominate, and provides concrete, reproducible guidelines to steer the next
Tianyu Liu   +4 more
wiley   +1 more source

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