Biomimetic control for redundant and high degree of freedom limb systems: neurobiological modularity

2011 ◽  
Vol 7 (3) ◽  
pp. 169-184 ◽  
Author(s):  
Simon F. Giszter ◽  
Corey B. Hart
Keyword(s):  
Degree Of Freedom ◽  
Biomimetic Control ◽  
High Degree

Research on Simulation Customers Participate Type in Open Innovation

2014 ◽  
Vol 926-930 ◽  
pp. 2054-2057
Author(s):  
Jun Hui He
Keyword(s):  
Open Innovation ◽  
Degrees Of Freedom ◽  
New Products ◽  
Innovation Process ◽  
Degree Of Freedom ◽  
Three Dimensions ◽  
Dynamic Evolution ◽  
Evolution Simulation ◽  
High Degree

This paper proposed customers to participate typology based on three dimensions, which are the customers’ autonomy in the process, the nature of the firm‐customer collaboration, and the stage of the innovation process. Then proposed customers to participate in the type of open innovation framework. Through the static comparative and dynamic evolution simulation found: customers tend to be open to participate in the development of new products pre innovation, the tendency to begin to choose the low participation of degrees of freedom, and ultimately tend to opt for a high degree of freedom to participate.

scholarly journals Sex Tours "in the Far East"

1970 ◽  
pp. 6-7
Author(s):  
Rose Ghurayyib
Keyword(s):  
Far East ◽  
The Philippines ◽  
Law Students ◽  
Degree Of Freedom ◽  
Business Managers ◽  
University Professors ◽  
The Far East ◽  
The Republic ◽  
The Government ◽  
High Degree

Within the period which followed the proclamation of the Philippines' independence, 1946, the country became one of the few states where a woman occupied the highest position in the Government. Corazon Aquino was elected president of the republic in 1984. If we also mention that the Philippine women include hundreds of physicians, business managers, university professors, and that they form two thirds of the law students in the country, we might conclude, from the above facts, that the Philippine woman has' achieved a high degree of freedom and modernism.

scholarly journals Snake Robot with Driving Assistant Mechanism

2020 ◽  
Vol 10 (21) ◽  
pp. 7478
Author(s):  
Junseong Bae ◽  
Myeongjin Kim ◽  
Bongsub Song ◽  
Maolin Jin ◽  
Dongwon Yun
Keyword(s):  
Dynamic Simulation ◽  
Degree Of Freedom ◽  
Rough Terrain ◽  
Snake Robot ◽  
Wide Range ◽  
Locomotion Speed ◽  
High Degree ◽  
Snake Robots

Snake robots are composed of multiple links and joints and have a high degree of freedom. They can perform various motions and can overcome various terrains. Snake robots need additional driving algorithms and sensors that acquire terrain data in order to overcome rough terrains such as grasslands and slopes. In this study, we propose a driving assistant mechanism (DAM), which assists locomotion without additional driving algorithms and sensors. In this paper, we confirmed that the DAM prevents a roll down on a slope and increases the locomotion speed through dynamic simulation and experiments. It was possible to overcome grasslands and a 27 degrees slope without using additional driving controllers. In conclusion, we expect that a snake robot can conduct a wide range of missions well, such as exploring disaster sites and rough terrain, by using the proposed mechanism.

The Effect of Gravity and Rotor Configuration on Dry Friction Whip and Safe Rotor/Stator Clearance

2019 ◽  
Author(s):  
Rajiv Kumar Vashisht
Keyword(s):  
Mathematical Model ◽  
Fault Diagnosis ◽  
Dry Friction ◽  
Rotating Machinery ◽  
Degree Of Freedom ◽  
System Response ◽  
Rich Variety ◽  
Wide Range ◽  
Clearance Level ◽  
High Degree

Abstract A mathematical model is developed for a real rotor/stator system with high degrees-of-freedoms, multiple disks, flexible bearing supports and couplings. The safe clearance level for coasting up of the rotor is calculated for a general high degree-of-freedom rotor/stator system. The harmful phenomena of dry friction whip, which is generally observable for simple 2 degree-of-freedom Jeffcott rotors in the absence of gravity only, can be proved to exist (in real rotor/stator systems) even in the presence of gravity for a wide range of clearance levels. In case of Jeffcott rotors, by fixing the clearance and increasing the rotor spin frequency, the response of the system follows the pattern: No rub - Forward Annular Rub (FAR) - Partial Forward Whirl (PFW) - Partial Backward Whirl (PBW) - dry whip (WHIP). In case of a real rotor/stator system, at certain frequencies, the system directly jumps to dry whip. The simulated results show a rich variety of system dynamics including FAR, PFW and WHIP in case of vertical rotors where the effect of gravity is neglected. For horizontal rotors, under the effect of gravity, the system response contains multi-harmonics, chaotic responses and multi-period vibrations. Based on these responses, a robust fault diagnosis strategy can be designed to identify the rubbing action in rotating machinery.

Between openness and closure: Helmuth Plessner and the boundaries of social life

2017 ◽  
Vol 18 (1) ◽  
pp. 36-54 ◽  
Author(s):  
Alexander Dobeson
Keyword(s):  
Social Theory ◽  
Physical Environment ◽  
Social Life ◽  
Philosophical Anthropology ◽  
Degree Of Freedom ◽  
Specific Relation ◽  
Original Contribution ◽  
Helmuth Plessner ◽  
Living Organisms ◽  
High Degree

This article introduces the basic notions of the widely neglected Philosophical Anthropology of Helmuth Plessner. Instead of defining man as a privileged holder of consciousness, Plessner claims that all living organisms can be defined by their specific relation to their physical boundaries. In contrast to other living organisms such as plants and animals, however, the ‘eccentric’ nature of man allows for a comparatively high degree of freedom from the physical environment, which enables him to transcend, objectify, and deconstruct the boundaries of the same. The article concludes by outlining Plessner’s original contribution to contemporary debates in social theory, in particular constructivism and post-humanist studies.

A Control System for a Flexible Spine Belly-Dancing Humanoid

2006 ◽  
Vol 12 (1) ◽  
pp. 63-88 ◽  
Author(s):  
Jimmy Or
Keyword(s):  
Central Pattern Generator ◽  
Humanoid Robot ◽  
Humanoid Robots ◽  
Pattern Generator ◽  
Degree Of Freedom ◽  
Rhythmic Movements ◽  
Walking Machines ◽  
Belly Dancing ◽  
Almost All ◽  
High Degree

Recently, there has been a lot of interest in building anthropomorphic robots. Research on humanoid robotics has focused on the control of manipulators and walking machines. The contributions of the torso towards ordinary movements (such as walking, dancing, attracting mates, and maintaining balance) have been neglected by almost all humanoid robotic researchers. We believe that the next generation of humanoid robots will incorporate a flexible spine in the torso. To meet the challenge of controlling this kind of high-degree-of-freedom robot, a new control architecture is necessary. Inspired by the rhythmic movements commonly exhibited in lamprey locomotion as well as belly dancing, we designed a controller for a simulated belly-dancing robot using the lamprey central pattern generator. Experimental results show that the proposed lamprey central pattern generator module could potentially generate plausible output patterns, which could be used for all the possible spine motions with minimized control parameters. For instance, in the case of planar spine motions, only three input parameters are required. Using our controller, the simulated robot is able to perform complex torso movements commonly seen in belly dancing as well. Our work suggests that the proposed controller can potentially be a suitable controller for a high-degree-of-freedom, flexible spine humanoid robot. Furthermore, it allows us to gain a better understanding of belly dancing by synthesis.

Human Modeling: Inverse Kinematics with Maximum Joint Availability

2000 ◽  
Vol 44 (38) ◽  
pp. 848-851
Author(s):  
Terrence J. Mayes ◽  
James C. Maida
Keyword(s):  
Personal Computer ◽  
Inverse Kinematics ◽  
Degree Of Freedom ◽  
Hybrid Technique ◽  
Performance Simulation ◽  
Human Modeling ◽  
High Degree ◽  
Very High

This paper describes a hybrid technique for performing inverse kinematics (IK) on redundant articulations with very high degree of freedom. Components from several different IK approaches are combined with special attention given to performance. Simulation of the algorithm on a personal computer can be done at interactive rates. Modifications to the standard IK approach are discussed and compared against previous approaches.

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