On the workspace boundary determination of serial manipulators with non-unilateral constraints

2008 ◽  
Vol 24 (1) ◽  
pp. 60-76 ◽  
Author(s):  
Jingzhou Yang ◽  
Karim Abdel-Malek ◽  
Yunqing Zhang
Keyword(s):  
Unilateral Constraints ◽  
Serial Manipulators ◽  
Boundary Determination ◽  
Workspace Boundary

scholarly journals Interaction Boundary Determination of Renewable Energy Sources to Estimate System Strength Using the Power Flow Tracing Strategy

2021 ◽  
Vol 13 (3) ◽  
pp. 1569
Author(s):  
Namki Choi ◽  
Byongjun Lee ◽  
Dohyuk Kim ◽  
Suchul Nam
Keyword(s):  
Renewable Energy ◽  
Power Flow ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Test Results ◽  
Boundary Determination ◽  
Actual Interaction ◽  
Power Flow Tracing ◽  
Estimate System

System strength is an important concept in the integration of renewable energy sources (RESs). However, evaluating system strength is becoming more ambiguous due to the interaction of RESs. This paper proposes a novel scheme to define the actual interaction boundaries of RESs using the power flow tracing strategy. Based on the proposed method, the interaction boundaries of RESs were identified at the southwest side of Korea Electric Power Corporation (KEPCO) systems. The test results show that the proposed approach always provides the identical interaction boundaries of RESs in KEPCO systems, compared to the Electric Reliability Council of Texas (ERCOT) method. The consistent boundaries could be a guideline for power-system planners to assess more accurate system strength, considering the actual interactions of the RESs.

Osmotic Pressure and Phase Boundary Determination of Multiphase Systems by Analytical Ultracentrifugation

ChemPhysChem ◽  
2008 ◽  
Vol 9 (6) ◽  
pp. 882-890 ◽  
Author(s):  
Miles G. Page ◽  
Thomas Zemb ◽  
Monique Dubois ◽  
Helmut Cölfen
Keyword(s):  
Phase Boundary ◽  
Osmotic Pressure ◽  
Analytical Ultracentrifugation ◽  
Boundary Determination ◽  
Multiphase Systems

Workspace Cusp Locations, and Simplified Workspace Boundary Equations for General RRR Regional Structures of Manipulators

1996 ◽  
Author(s):  
Peregrine E. J. Riley ◽  
Louis E. Torfason
Keyword(s):  
Complex Geometry ◽  
Spatial Location ◽  
Polynomial Equation ◽  
Toroidal Surface ◽  
General Complex ◽  
Cusp Points ◽  
Joint Variable ◽  
Boundary Equations ◽  
Workspace Boundary

Abstract General, complex geometry forms of RRR regional structures are often avoided due to the presence of inner boundaries within the workspace which tend to complicate robot guidance. Despite the added complexity, certain RRR geometries may have useful applications as they contain large workspace regions where four alternate configurations may be used to reach a given spatial location. Cusp points often appear on the workspace boundaries of general RRR regional structures, and determining their precise location may be useful for both design and guidance purposes. A twelfth degree polynomial equation in the outer joint variable is derived which defines the location of non-trivial cusps in the workspace. A new closed form workspace boundary equation is derived in the outer joint variable and x coordinate of the toroidal surface generated by rotation of the two outer revolutes. If the outer joint variable is incremented, a quadratic in x is formed at each step which enables a very efficient determination of the workspace boundaries while also providing the coordinates of the boundary on the toroidal surface.

Boundary determination of leveling capacity for plate roller leveler based on curvature integration method

2015 ◽  
Vol 22 (12) ◽  
pp. 4608-4615 ◽  
Author(s):  
Zhi-fang Liu ◽  
Yuan-xin Luo ◽  
Xing-chun Yan ◽  
Yong-qin Wang
Keyword(s):  
Integration Method ◽  
Boundary Determination

scholarly journals Boundary determination of foot ulcer images by applying the associative hierarchical random field framework

2019 ◽  
Vol 6 (02) ◽  
pp. 1
Author(s):  
Lei Wang ◽  
Peder C. Pedersen ◽  
Emmanuel Agu ◽  
Diane Strong ◽  
Bengisu Tulu
Keyword(s):  
Random Field ◽  
Foot Ulcer ◽  
Boundary Determination

scholarly journals The New Game with the Old Rules: Boundary Determination Under MMP

2003 ◽  
Vol 34 (1) ◽  
pp. 135
Author(s):  
Graham Beever
Keyword(s):  
New Zealand ◽  
Electoral System ◽  
The Body ◽  
The Other ◽  
Royal Commission ◽  
The Political ◽  
Tolerance Level ◽  
Boundary Determination ◽  
New System

In 1996, New Zealand experienced its first election under MMP, a system of proportional representation. MMP had been recommended ten years earlier by the Royal Commission on the Electoral System. However, some of the details surrounding the operation of the new system differ significantly from the original recommendations of the Royal Commission.In relation to the determination of electoral boundaries, an issue of considerable importance under the previous First Past the Post system but of diminished significance under MMP, there are two particularly important differences. One of these is the retention of two political representatives on the Representation Commission, the body responsible for determining electoral boundaries. The other is the retention of the electoral tolerance at the relatively low level of five percent. The electoral tolerance is the quantity that determines the acceptable variation in population between electorates.The paper concludes that the political representatives should be removed from the Representation Commission, and that the tolerance should be raised to ten percent, as originally envisaged by the Royal Commission. The entrenched status of these provisions makes reform especially challenging. However, there is evidence to suggest, at least in relation to the tolerance level, that cross-party consensus may be able to be achieved.

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