ChemInform Abstract: N-Arylation of Isatins. A Direct Route to N-Aryl Isatoic Anhydrides.

ChemInform ◽  
1988 ◽  
Vol 19 (15) ◽  
Author(s):  
G. M. COPPOLA
Keyword(s):  
Direct Route

scholarly journals Transfer RNA pyrophosphorolysis with CTP(ATP):tRNA nucleotidyltransferase. A direct route to tRNAs modified at the 3' terminus.

1983 ◽  
Vol 258 (7) ◽  
pp. 4279-4284
Author(s):  
T A Francis ◽  
G M Ehrenfeld ◽  
M R Gregory ◽  
S M Hecht
Keyword(s):  
Transfer Rna ◽  
Direct Route

ChemInform Abstract: A Direct Route for the Regioselective Synthesis of Hydroxylated Aromatic Cycloalkanediones.

ChemInform ◽  
2010 ◽  
Vol 24 (51) ◽  
pp. no-no
Author(s):  
G. SARTORI ◽  
F. BIGI ◽  
G. GOFFREDI ◽  
R. MAGGI ◽  
R. PORTIOLI ◽  
...  
Keyword(s):  
Regioselective Synthesis ◽  
Direct Route

A Direct Route to Bifunctional Aldehyde Derivatives via Self- and Cross-Metathesis of Unsaturated Aldehydes

ChemSusChem ◽  
2009 ◽  
Vol 2 (6) ◽  
pp. 542-545 ◽  
Author(s):  
Xiaowei Miao ◽  
Cédric Fischmeister ◽  
Christian Bruneau ◽  
Pierre H. Dixneuf
Keyword(s):  
Cross Metathesis ◽  
Unsaturated Aldehydes ◽  
Direct Route

A Convenient and Direct Route to Phosphinoalkynes via Copper-Catalyzed Cross-Coupling of Terminal Alkynes with Chlorophosphanes.

ChemInform ◽  
2004 ◽  
Vol 35 (21) ◽  
Author(s):  
Vladimir V. Afanasiev ◽  
Irina P. Beletskaya ◽  
Marina A. Kazankova ◽  
Irina V. Efimova ◽  
Mikhail U. Antipin
Keyword(s):  
Cross Coupling ◽  
Terminal Alkynes ◽  
Direct Route

scholarly journals Observability Degree-Based AUV Single Beacon Navigation Trajectory Optimization with Range-Only Measurements

Complexity ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Huapeng Yu ◽  
Xu Zhou
Keyword(s):  
Trajectory Optimization ◽  
Autonomous Underwater Vehicle ◽  
Control Method ◽  
Engineering Application ◽  
System Model ◽  
Integrated Navigation ◽  
Direct Route ◽  
Error Covariance ◽  
Polar Coordinate ◽  
Beacon Navigation

Aiming at the problem of autonomous underwater vehicle navigation trajectory optimization using single beacon location under direct route condition, a nonlinear system model for AUV single beacon navigation is established, and the linearized system model with error states is constructed by polar coordinate transformation and simplification. Then, current disturbance is considered. To find out the optimum path to utilize range-only measurements, a novel observability degree-based analysis method is proposed, which gives a quantitative insight into convergence characteristics of the error states by using the eigenvalues of the normalized error covariance matrix. Simulation experiments are done to test convergence characteristics of AUV integrated navigation error states with single beacon range-only measurements under direct route control conditions. The experimental results show that the proposed control method is effective, and it has an important engineering application value and provides us with an optimized path.

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