scholarly journals Eigenvalues and stability properties of multiplication operators and multiplication semigroups

2013 ◽  
Vol 287 (5-6) ◽  
pp. 574-584 ◽  
Author(s):  
Retha Heymann
Keyword(s):  
Multiplication Operators ◽  
Stability Properties

Partial Activation of Purified Prothrombin: Derivation of Autoprothrombin I with Use of Autoprothrombin C

1962 ◽  
Vol 07 (02) ◽  
pp. 239-248 ◽  
Author(s):  
Walter H Seegers ◽  
Edmond R Cole ◽  
Ewa Marciniak
Keyword(s):  
Calcium Ions ◽  
Platelet Factor ◽  
Stability Properties ◽  
Partial Activation ◽  
Autoprothrombin C

SummaryActivation of purified prothrombin with autoprothrombin C in the absence of calcium ions produces autoprothrombin I activity. The solubility, and stability properties of this autoprothrombin I are different from those of autoprothrombin I when obtained by activating prothrombin with calcium ions, platelet factor 3, and Ac-globulin.

Stability properties of mean flows with turning

Tellus ◽  
1982 ◽  
Vol 34 (1) ◽  
pp. 39-49 ◽  
Author(s):  
Richard Grotjahn
Keyword(s):  
Stability Properties

scholarly journals Stability properties and antioxidant activity of curcumin nanosuspensions in emulsion systems

2021 ◽  
Vol 19 (1) ◽  
pp. 40-48
Author(s):  
Sun-Hyung Kim ◽  
Eui-Seok Lee ◽  
Ki-Teak Lee ◽  
Soon-Taek Hong
Keyword(s):  
Antioxidant Activity ◽  
Stability Properties ◽  
Emulsion Systems

scholarly journals Ideal MHD stability properties of pressure driven modes in low shear tokamaks

1987 ◽  
Vol 27 (9) ◽  
pp. 1461-1472 ◽  
Author(s):  
J. Manickam ◽  
N. Pomphrey ◽  
A.M.M. Todd
Keyword(s):  
Stability Properties ◽  
Ideal Mhd ◽  
Mhd Stability ◽  
Low Shear ◽  
Pressure Driven

scholarly journals Velocity and acceleration level inverse kinematic calculation alternatives for redundant manipulators

Meccanica ◽  
2021 ◽  
Author(s):  
Dóra Patkó ◽  
Ambrus Zelei
Keyword(s):  
Degrees Of Freedom ◽  
Direct Method ◽  
Tracking Error ◽  
Inverse Kinematic ◽  
Linear Feedback ◽  
Joint Position ◽  
Stability Properties ◽  
Acceleration Level ◽  
Error Elimination ◽  
The Stability

AbstractFor both non-redundant and redundant systems, the inverse kinematics (IK) calculation is a fundamental step in the control algorithm of fully actuated serial manipulators. The tool-center-point (TCP) position is given and the joint coordinates are determined by the IK. Depending on the task, robotic manipulators can be kinematically redundant. That is when the desired task possesses lower dimensions than the degrees-of-freedom of a redundant manipulator. The IK calculation can be implemented numerically in several alternative ways not only in case of the redundant but also in the non-redundant case. We study the stability properties and the feasibility of a tracking error feedback and a direct tracking error elimination approach of the numerical implementation of IK calculation both on velocity and acceleration levels. The feedback approach expresses the joint position increment stepwise based on the local velocity or acceleration of the desired TCP trajectory and linear feedback terms. In the direct error elimination concept, the increment of the joint position is directly given by the approximate error between the desired and the realized TCP position, by assuming constant TCP velocity or acceleration. We investigate the possibility of the implementation of the direct method on acceleration level. The investigated IK methods are unified in a framework that utilizes the idea of the auxiliary input. Our closed form results and numerical case study examples show the stability properties, benefits and disadvantages of the assessed IK implementations.

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