Determination of the minimum-energy conformation of allylbenzene and its clusters with methane, ethane, water, and ammonia

1989 ◽  
Vol 93 (18) ◽  
pp. 6731-6736 ◽  
Author(s):  
P. J. Breen ◽  
E. R. Bernstein ◽  
Jeffrey I. Seeman ◽  
Henry V. Secor
Keyword(s):  
Minimum Energy ◽  
Minimum Energy Conformation

scholarly journals Structure determination of a novel cyclic phosphocompound isolated from Desulfovibrio desulfuricans

1992 ◽  
Vol 285 (2) ◽  
pp. 387-390 ◽  
Author(s):  
D L Turner ◽  
H Santos ◽  
P Fareleira ◽  
I Pacheco ◽  
J LeGall ◽  
...  
Keyword(s):  
Structure Determination ◽  
Minimum Energy ◽  
Desulfovibrio Desulfuricans ◽  
The Novel ◽  
Relative Configuration ◽  
Minimum Energy Conformation

The structure of a novel diphosphodiester compound recently detected in Desulfovibrio desulfuricans cells [Santos, Fareleira, Pedregal, LeGall & Xavier (1991) Eur. J. Biochem. 201, 283-287] was fully elucidated using a combination of n.m.r. techniques in aqueous and in methanolic solutions. The novel metabolite was identified as 3-methyl-1,2,3,4-tetrahydroxybutane-1,3-cyclic bisphosphate, and the minimum energy conformation is presented. The two chiral centres have the relative configuration RS.

Minimum energy conformation of ortho‐xylene in its ground and first excited electronic states

1992 ◽  
Vol 97 (11) ◽  
pp. 8130-8136 ◽  
Author(s):  
R. Disselkamp ◽  
E. R. Bernstein ◽  
Jeffrey I. Seeman ◽  
Henry V. Secor
Keyword(s):  
Minimum Energy ◽  
Electronic States ◽  
Excited Electronic States ◽  
Minimum Energy Conformation

A SIMULATION STUDY OF ENERGY UTILISATION IN A VARIABLE LINK LENGTH 3 DOF REVOLUTE ARTICULATED MANIPULATOR

2015 ◽  
Vol 76 (4) ◽  
Author(s):  
Wan Sulaiman Wan Mohamad ◽  
Zulkifli Mohamed ◽  
Zainoor Hailmee Solihin ◽  
Kamrol Amri Mohamed
Keyword(s):  
Simulation Study ◽  
Energy Method ◽  
Mechanical Energy ◽  
Minimum Energy ◽  
Average Energy ◽  
Energy Utilization ◽  
Link Length ◽  
Manipulator Link ◽  
Point To Point

Determination of manipulator link lengths is one of the important criteria in robotic design. The purpose of this study is to find the minimum energy utilization for a 3 DOF revolute articulated manipulator to perform certain point-to-point task by varying the link lengths of the manipulator. The lengths of the second and third link of the developed manipulator can be varied accordingly. The investigation of energy for different link length combinations is carried out theoretically. In the simulation, the work-energy method is constituted in order to determine the average mechanical energy of the manipulator. The simulation shows that, different trajectory of motions results in different link length combinations that could give optimum average energy utilization. Results of the simulations shows that, improvement of mechanical energy utilization could be achieved by having variable link length of manipulator rather than having fixed length of manipulator’s arms. 

scholarly journals Determination of the junction angle in fluvial channels from georeferenced aerial images from Google Earth Pro and UAV

2019 ◽  
Vol 14 (5) ◽  
pp. 1
Author(s):  
Marco Alésio Figueiredo Pereira ◽  
Bruno Lippo Barbieiro ◽  
Marciano Carneiro ◽  
Masato Kobiyama
Keyword(s):  
River Flow ◽  
Minimum Energy ◽  
Google Earth ◽  
Aerial Images ◽  
Energy Principle ◽  
Minimum Energy Principle ◽  
Deposition Processes ◽  
Law Of Cosines ◽  
Uav Images

The junction angles in fluvial channels are determined from complex erosion and deposition processes, resulting from river-flow dynamics, bed and margin morphology, and so on. Knowledge regarding these angles is important in order to better understand the existing conditions in a basin. In this sense, the objective of the present study was to determine the junction angles on fluvial channels, called α, β and γ, applying the law of cosines. Georeferenced Google Earth Pro images and UAV images were used. Then, the values calculated from the georeferenced aerial images were compared with the values calculated from the minimum energy principle. To visualize and understand the obtained angles, the Junction Angles Diagram was used. The obtained result shows that the methodology using georeferenced aerial images have good performance for determining junction angles on fluvial channels.

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