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Article

INDUSTRIAL ROBOT CALIBRATION USING A VIRTUAL LINEAR CONSTRAINT

This paper proposes a systematic method to identify the joint zero offset of industrial robot. Small offset always exist in robot joint, which affect the precision in kinematic equations leading to calculate wrong joint angle values. To solve these problems, the proposed method employs a portable dual Position Sensitive Detector (PSD) device and a focusable laser point (FLP). The portable dual PSD device comprises two fixed PSDs tilted in an angle to reflect the laser line from one PSD to

Biqiang Du, Ning Xi, Erick Nieves

International Journal on Smart Sensing and Intelligent Systems , ISSUE 4, 987–1001

short-communication

Differentially Marked IncP-1β R751 Plasmids for Cloning via Recombineering and Conjugation

; Jennings et al. 2011). For both regions, FRT sites were inserted into locations flanking the target genes (using standard recombineering) such that a Km-R gene would be removed with the genes upon excision via FLP recombinase (Fig. 1B) (Datsenko and Wanner 2000). In the presence of one of the R751 derivatives (R751 Sp is shown in Fig. 1B as an example), the excised target genes would be inserted into the plasmid via FLP, and then this molecule is isolated via conjugation to a differentially marked

ASHVEEN BAINS, JAMES W. WILSON

Polish Journal of Microbiology , ISSUE 4, 559–563

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