We present Continuation Passing C (CPC), a programming language designed for writing concurrent systems. It features very lightweight threads, both cooperatively or preemptively scheduled, which are compiled to highly-efficient event-loop code. Its compilation passes have been proven correct. CPC has been used to write Hekate, a BitTorrent seeder able to sustain thousands of simultaneously conn...

In order to solve the problems of domestic and foreign vegetable precision metering devices that easily damage seeds have low seeding efficiency poor qualification rate, this paper designs a one-machine for two-row pneumatic combination seeder, which is mainly composed mechanism honeycomb mechanism. The other components theoretical analysis working process combined seed device clarifies minimum...

MOTIVATION The computational identification of transcription factor binding sites is a major challenge in bioinformatics and an important complement to experimental approaches. RESULTS We describe a novel, exact discriminative seeding DNA motif discovery algorithm designed for fast and reliable prediction of cis-regulatory elements in eukaryotic promoters. The algorithm is tested on biologica...

An ejection mechanism consisting four reset springs, an electromagnet and a seed disk was designed for tray seeder. The motion conditions of seeds in the seed disk were theoretical analyzed and intensity and height of seed ejection were calculated. The motions of the seeds and seed disk were multi-body dynamic simulated using Cosmos modules plug-in SolidWorks software package. The simulation re...

There were determined the parameters and operating modes of centrifugal dispersion system a grain pneumatic seeder, which ensured minimum unevenness seed between lines.