40 results about "Set-aside" patented technology

An efficient long-message-oriented computer network communication method. When processes between different computers need to transmit long messages, the following steps are performed: ①Reserve a small part of physical memory as a shared communication buffer; ②The sender process starts from the The reserved free physical memory applies for the shared communication buffer; 3. Map the network interface to the user space, so that the sender process can directly access the network interface; the sender process copies the data to be sent to the shared communication buffer; After the data to be sent is copied to the shared communication buffer, the sender's network card writes the data in the sender's shared communication buffer into the network card's sending buffer through DMA; the receiver's network card requests the communication software after part of the data is written into the shared communication buffer. Processing; the communication software sends a signal that the data has been received to the upper-level receiver process, requesting the receiver process to process; the receiver process copies the data in the shared communication buffer to the destination address. The technical effects of the present invention are as follows: the overhead of the network card starting DMA multiple times is reduced, and the communication rate of long messages is significantly accelerated; and the parallel method of user mode memory copy and network card DMA pipeline is adopted to reduce the cost of memory copy.

The invention relates to a cuttage propagation method of Virginia oak, which belongs to the technical field of plant cultivation. The method comprises the following steps: firstly, a sterilizing seedbThe invention relates to a cuttage propagation method of Virginia oak, which belongs to the technical field of plant cultivation. The method comprises the following steps: firstly, a sterilizing seedbter being exercised for 30-35 days at the last third of the December or the last third of the February of the next year and enter the management after transplanting. The cuttage propagation adoptingafter being exercised for 30-35 days at the last third of the December or the last third of the February of the next year and enter the management after transplanting. The cuttage propagation adoptingthe method has high survival ratio and fast propagation speed. The invention is suitable for the climatic environments in most parts of Yangtze River Delta in China and has the survival ratio up to 8 the method has high survival ratio and fast propagation speed. The invention is suitable for the climatic environments in most parts of Yangtze River Delta in China and has the survival ratio up to 80-90 percent, and the obtained nursery plantlets of the Virginia oaks have sound quality.0-90 percent, and the obtained nursery plantlets of the Virginia oaks have sound quality.ed is built in a big-arch shelter, an arch shed is built on the seedbed, a hole pan provided with cuttage substrate is arranged in the seedbed, and the cuttage substrate is treated and sets aside; seced is built in a big-arch shelter, an arch shed is built on the seedbed, a hole pan provided with cuttage substrate is arranged in the seedbed, and the cuttage substrate is treated and sets aside; secondly, branches derived from close roots of the Virginia oaks grown for 2-4 years are selected to prune ears in February to March every year when sprouts do not and are about to burgeon, and the ear sondly, branches derived from close roots of the Virginia oaks grown for 2-4 years are selected to prune ears in February to March every year when sprouts do not and are about to burgeon, and the ear strips are pruned into branches; thirdly, the branches are treated by root stimulating agent, and the cuttage is done immediately, for the branches which then enter into the management after the cuttagtrips are pruned into branches; thirdly, the branches are treated by root stimulating agent, and the cuttage is done immediately, for the branches which then enter into the management after the cuttage; fourthly, after more than 70 percent of branches root and sprout, the hole pan is moved to forcibly exercise the plantlets outside the big-arch shelter, and the plants are transplanted into grounde; fourthly, after more than 70 percent of branches root and sprout, the hole pan is moved to forcibly exercise the plantlets outside the big-arch shelter, and the plants are transplanted into groundaf