摘要:

For all practical purposes (but somewhat arbitrarily), the history of NMR spectroscopy may be divided into six periods:

ISSN:1073-9149    

DOI:10.1080/10739148708543649

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

摘要:

Most simple chemical kinetic models which involve first or higher order processes may be transformed to be linear in their coefficients by one or moreexactintegrations of the function with respect to time. Thus, a function which is non-linear in time is converted into a function which is linear in two or more dimensions, and is readily solved using simplenumericalintegration and linear algebra. The simple cases, involving one first or second order step, yield rates which are simple functions of the determined coefficients and may be used directly. More complicated models, involving multiple exponential factors yielding rates and amplitudes which are complex functions of the determined coefficients, yield better fits after iterative improvement of the original unintegrated function. In all cases, the rates and amplitudes obtained do not differ significantly from those using the classic Levenberg-Marquardt algorithm. The method of successive integration is very fast (three to five times faster than Levenberg-Marquardt) and requires neither initial guesses nor approximation of rates and amplitudes.

ISSN:1073-9149    

DOI:10.1080/10739148708543650

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

摘要:

A microcomputer version of LISP is used to develop robot control functions. Several robot functions for the manipulation of the robot arm are implemented by the software.

ISSN:1073-9149    

DOI:10.1080/10739148708543651

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

摘要:

A robot simulation system has been developed to assist in robot task planning and control data programming. The system allows simulation of the robot manipulator on the CRT by taking into consideration the kinematics and dynamics of the robot arm. The architecture of the robot simulation system is presented. Description of robot positional kinematics is given by the use of geometrical model and its extension to homogeneous transformation. Several simulated robot arm positions are shown to illustrate the kinematic model.

ISSN:1073-9149    

DOI:10.1080/10739148708543652

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

ISSN:1073-9149    

DOI:10.1080/10739148708543653

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

ISSN:1073-9149    

DOI:10.1080/10739148708543654

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor

ISSN:1073-9149    

DOI:10.1080/10739148708543655

出版商:Taylor & Francis Group    

年代:1987

数据来源: Taylor