Results 41 to 50 of about 251,598 (308)

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

Multi‐Material Additive Manufacturing of Soft Robotic Systems: A Comprehensive Review

open access: yesAdvanced Robotics Research, EarlyView.
This review explores the transformative role of multi‐material additive manufacturing (MMAM) in the development of soft robotic systems. It presents current techniques, materials, and design strategies that enable functionally graded and adaptive structures.
Ritik Raj   +2 more
wiley   +1 more source

Analysis of Financial and Non-Financial Performance of Marine Capture Fisheries Using Gillnet in Pulau Baai Port of Bengkulu Province

open access: yesIndonesian Journal of Agricultural Research, 2018
This study is aimed at analyzing the financial and non-financial performance of marine capture fisheries business in Baai Island Port. Stratified random sampling including 60 fishermen using gillnet fishing gear in Baai Island Port was used in this ...
Yohana Tambunan   +2 more
doaj   +3 more sources

非圆齿轮曲柄摇杆串联传动机构的设计与抽油机节能

open access: yesJixie chuandong, 2010
The mathematical model of non-circular gear crank-rocker mechanism is established,and the dynamic characters of this organization are analyzed.Taking the energy saving as a starting point,the design method applicable to the beam pumping unit of non ...
赵娟娟, 苏智剑
doaj  

Study on Topological Modification Method Considering Torsional Deformation of Double Planetary Gear Shafts

open access: yesJixie chuandong, 2023
In order to solve the problems of eccentric load of planetary gear train and large impact of gear teeth meshing caused by torsional deformation of double planetary gear shafts under load, a topological modification method considering torsional ...
Chen Xuehui   +6 more
doaj  

Fold Walker: An Origami‐Inspired Quadruped Robot for Multipattern Locomotion and Object Grasping

open access: yesAdvanced Robotics Research, EarlyView.
This article presents Fold Walker, an origami‐inspired quadruped robot capable of multipattern locomotion and object grasping. With each leg featuring two rotational folds, the robot can transform from a flat 2D configuration into complex 3D poses. Furthermore, its trunk and legs can be one‐shot 3D printed as a unified structure, greatly simplifying ...
Yilun Sun
wiley   +1 more source

Marine recreational fisheries statistics survey for northern and central California, Quarterly Report no. 1, July to September 1979 [PDF]

open access: yes, 1987
Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in July to September 1979, is presented in a data report format.
Karpov, Konstantin A.   +2 more
core  

Research on Multi-Objective Optimization of Helical Gear Shaping Based on an Improved Genetic Algorithm

open access: yesMachines
Traditional design and shaping methods of helical gears may have difficulties in meeting the requirements of multiple performance indicators simultaneously, such as tooth surface accuracy, load-carrying capacity, and transmission efficiency.
Shengmao Zhou, Dehai Zhang
doaj   +1 more source

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

Marine recreational fisheries statistics survey for northern and central California, Quarterly Report no. 6, October to December, 1980 [PDF]

open access: yes, 1988
Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in October to December. 1980, is presented in a data report format.
Karpov, Konstantin A.   +2 more
core  

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