365 research outputs found
PREPARATION OF 5H,7H-DIBENZ[c,e]OXEPIN-5-ONE DERIVATIVE THROUGH RECONSTRUCTION OF THE LACTONE RING
The systematic investigation of the efficient transformation of 6H-dibenzo[b,d]pyran-6-one into 5H,7H-dibenz[c,e]oxepin-5-one is described
SYNTHESIS OF ZANTHOXYLINE AND ITS RELATED COMPOUNDS: REVISION OF THE REPORTED STRUCTURE
Benzo[c]phenanthridine alkaloid, zanthoxyline, was synthesized through an intramolecular biaryl coupling reaction of N-naphthylbenzamide derivative using a palladium reagent. Comparison of the NMR data for the synthetic product with that reported previously revealed that the proposed structure was incorrect. Synthesis of the related compounds suggested that the correct structure of zanthoxyline is the previously known decarine
Development of a low-alpha-emitting {\mu}-PIC for NEWAGE direction-sensitive dark-matter search
NEWAGE is a direction-sensitive dark-matter-search experiment that uses a
micro-patterned gaseous detector, or {\mu}-PIC, as the readout. The main
background sources are {\alpha}-rays from radioactive contaminants in the
{\mu}-PIC. We have therefore developed a low-alpha-emitting {\mu}-PICs and
measured its performances. We measured the surface {\alpha}-ray emission rate
of the {\mu}-PIC in the Kamioka mine using a surface {\alpha}-ray counter based
on a micro TPC.Comment: 6 pages, 4 figure
SYNTHESIS OF 2,3,9,10-TETRAOXYGENATED BENZO[c]PHENANTHRIDINE DERIVATIVES VIA PALLADIUM-MEDIATED ARYL-ARYL COUPLING REACTION
Two 2,3,9,10-tetraoxygenated benzo[c]phenanthridine alkaloids, 1 2, originally reported as zanthoxyline and broussonpapyrine, respectively, were synthesized using the Pd-mediated intramolecular aryl-aryl coupling reaction as the key step
Multi-agent statistical discriminative sub-trajectory mining and an application to NBA basketball
Improvements in tracking technology through optical and computer vision
systems have enabled a greater understanding of the movement-based behaviour of
multiple agents, including in team sports. In this study, a Multi-Agent
Statistically Discriminative Sub-Trajectory Mining (MA-Stat-DSM) method is
proposed that takes a set of binary-labelled agent trajectory matrices as input
and incorporates Hausdorff distance to identify sub-matrices that statistically
significantly discriminate between the two groups of labelled trajectory
matrices. Utilizing 2015/16 SportVU NBA tracking data, agent trajectory
matrices representing attacks consisting of the trajectories of five agents
(the ball, shooter, last passer, shooter defender, and last passer defender),
were truncated to correspond to the time interval following the receipt of the
ball by the last passer, and labelled as effective or ineffective based on a
definition of attack effectiveness that we devise in the current study. After
identifying appropriate parameters for MA-Stat-DSM by iteratively applying it
to all matches involving the two top- and two bottom-placed teams from the
2015/16 NBA season, the method was then applied to selected matches and could
identify and visualize the portions of plays, e.g., involving passing, on-,
and/or off-the-ball movements, which were most relevant in rendering attacks
effective or ineffective
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