A computational method for synthesis of baranov truss from simple jointed kinematic chains

2021 ◽  
Author(s):  
Manikandan H. ◽  
Vijayananda Kaup ◽  
Harish Babu
Keyword(s):  
Computational Method ◽  
Kinematic Chains

scholarly journals Inverse Kinematics for Upper Limb Compound Movement Estimation in Exoskeleton-Assisted Rehabilitation

2016 ◽  
Vol 2016 ◽  
pp. 1-14 ◽  
Author(s):  
Camilo Cortés ◽  
Ana de los Reyes-Guzmán ◽  
Davide Scorza ◽  
Álvaro Bertelsen ◽  
Eduardo Carrasco ◽  
...  
Keyword(s):  
Inverse Kinematics ◽  
Ground Truth ◽  
Computational Method ◽  
Accurate Estimation ◽  
Joint Angles ◽  
Kinematic Chains ◽  
Cord Injury ◽  
Posture Estimation ◽  
Patient Groups ◽  
Parallel Kinematic

Robot-Assisted Rehabilitation (RAR) is relevant for treating patients affected by nervous system injuries (e.g., stroke and spinal cord injury). The accurate estimation of the joint angles of the patient limbs in RAR is critical to assess the patient improvement. The economical prevalent method to estimate the patient posture in Exoskeleton-based RAR is to approximate the limb joint angles with the ones of the Exoskeleton. This approximation is rough since their kinematic structures differ. Motion capture systems (MOCAPs) can improve the estimations, at the expenses of a considerable overload of the therapy setup. Alternatively, the Extended Inverse Kinematics Posture Estimation (EIKPE) computational method models the limb and Exoskeleton as differing parallel kinematic chains. EIKPE has been tested with single DOF movements of the wrist and elbow joints. This paper presents the assessment of EIKPE with elbow-shoulder compound movements (i.e., object prehension). Ground-truth for estimation assessment is obtained from an optical MOCAP (not intended for the treatment stage). The assessment shows EIKPE rendering a good numerical approximation of the actual posture during the compound movement execution, especially for the shoulder joint angles. This work opens the horizon for clinical studies with patient groups, Exoskeleton models, and movements types.

Aiming for a Standardized Protocol for Preparing a Process Green Synthesis Report and for Ranking Multiple Synthesis Plans to a Common Target Product

2019 ◽  
Author(s):  
john andraos
Keyword(s):  
Green Synthesis ◽  
Block Diagram ◽  
Computational Method ◽  
Borda Count ◽  
Target Product ◽  
Material Efficiency ◽  
Synthesis Report ◽  
Common Target ◽  
Greenness Index ◽  
Multiple Synthesis

This paper proposes a standardized format for the preparation of process green synthesis reports that can be applied to chemical syntheses of active pharmaceutical ingredients (APIs) of importance to the pharmaceutical industry. Such a report is comprised of the following eight sections: a synthesis scheme, a synthesis tree, radial pentagons and step E-factor breakdowns for each reaction step, a tabular summary of key material efficiency step and overall metrics for a synthesis plan, a mass process block diagram, an energy consumption audit based on heating and cooling reaction and auxiliary solvents, a summary of environmental and safety-hazard impacts based on organic solvent consumption using the Rowan solvent greenness index, and a cycle time process schedule. Illustrative examples of process green synthesis reports are given for the following pharmaceuticals: 5-HT2B and 5-HT7 receptors antagonist (Astellas Pharma), brivanib (Bristol-Myers Squibb), and orexin receptor agonist (Merck). Methods of ranking synthesis plans to a common target product are also discussed using 6 industrial synthesis plans of apixaban (Bristol-Myers Squibb) as a working example. The Borda count method is suggested as a facile and reliable computational method for ranking multiple synthesis plans to a common target product using the following 4 attributes obtained from a process green synthesis report: process mass intensity, mass of sacrificial reagents used per kg of product, input enthalpic energy for solvents, and Rowan solvent greenness index for organic solvents.<br>

Five-Lump Kinetic Model for the Catalytic Cracking Process\

2018 ◽  
Vol 69 (10) ◽  
pp. 2633-2637
Author(s):  
Raluca Dragomir ◽  
Paul Rosca ◽  
Cristina Popa
Keyword(s):  
Kinetic Model ◽  
Programming Language ◽  
Catalytic Cracking ◽  
Computational Method ◽  
Industrial Data ◽  
New Model ◽  
Optimization And Control ◽  
Cracking Process ◽  
And Control ◽  
Matlab Programming

The main objectives of the present paper are to adaptation the five-kinetic model of the catalytic cracking process and simulation the riser to predicts the FCC products yields when one of the major input variable of the process is change. The simulation and adaptation are based on the industrial data from Romanian refinery. The adaptation is realize using a computational method from Optimization Toolbox from Matlab programming language. The new model can be used for optimization and control of FCC riser.

SYNTHESIS OF SPATIAL LEVER MECHANISMS ON THE BASIS OF THE INITIAL KINEMATIC CHAINS SSS PAIRS

2016 ◽  
Vol 72 (2) ◽  
Author(s):  
Serikbay Kosbolov ◽  
Kulzada Duisebayeva
Keyword(s):  
Kinematic Chains
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