38results about How to "Avoid crossbreeding" patented technology

The invention provides a yarn impurity removing device in a warp guide device of a warp knitting machine, and belongs to the technical field of machines. The warp guide device of the warp knitting machine comprises a machine frame and a tank arranged on the machine frame, wherein a lubricating shaft is rotationally arranged in the tank. The yarn impurity removing device comprises an air pipe arranged above the tank, and the axial direction of the air pipe is consistent with the axial direction of the lubricating shaft; the two ends of the air pipe are a closed end and an opened end respectively, a plurality of exhaust holes are formed in the lower side of the air pipe in a penetrating mode, and the exhaust holes are aligned with the lubrication shaft; a fan is further fixedly arranged on the machine frame, the fan comprises a straight tubular air outlet part, and a stainless steel corrugated pipe making the opened end and the air outlet part communicated is arranged between the openedend and the air outlet part; an adjusting pipe and a connecting column are vertically arranged on the lower portion of the closed end, and the lower end of the adjusting pipe is fixedly connected withthe machine frame; the upper end of the connecting column is fixedly connected with the closed end, the lower end of the connecting column is inserted into the adjusting pipe, and a detachable locking mechanism for fixing the connecting column and the adjusting pipe together is arranged between the connecting column and the adjusting pipe. The yarn impurity removing device has the advantage thatyarn crossing can be prevented.

The invention discloses a multiple fluorescence immunoassay primer, kit and method capable of fast distinguishing CAV, MDV, REV and IBDV. The multiple fluorescence immunoassay primer, kit and method has the advantages that target amplification fragments are obtained through PCR, \ amplification products, fluorescence encoded microspheres and streptavidin-phycoerythrin are hybridized, MFI values are read through a detector, and different types of pathogens are distinguished; the method can simultaneously and accurately detect chicken infectious anemia viruses, chicken Marek's disease viruses, chicken reticuloendotheliosis viruses and chicken infectious bursal disease viruses and is high in specificity, high in sensitivity and good in repeatability; compared with a traditional method, the method can simultaneously detect various molecules, with different purposes, in the same sample and is low in sample use amount, simple and fast to operate, capable of greatly lowering detecting cost, good in flexibility and capable of increasing and decreasing to-be-detected pathogen types on the basis.

The invention discloses a multiple fluoroimmunoassay method capable of quickly differentiating infectious laryngotracheitis virus (ILTV), infectious bronchitis virus (IBV), myeoplasma gallisepticum (MG) and mycoplasma synoviae (MS) and a reagent. The method is simple to operate, a target amplified fragment is obtained through polymerase chain reaction (PCR); an amplified product, fluorescence coded microspheres and streptavidin-phycoerythrin are hybridized, a mean fluorescence intensity (MFI) value is read through a detector, and pathogens of different types are differentiated. According to the method, avian infectious laryngotracheitis virus, infectious bronchitis virus, myeoplasma gallisepticum and mycoplasma synoviae can be accurately detected simultaneously, and the method is high in specificity and sensitivity and good in repeatability. Compared with a conventional detection method, the method can be used to simultaneously detect various target molecules in an identical sample, the sample usage amount is small, the method is simple and quick to operate, and the detection cost can be greatly reduced. The method is good in flexibility, and the varieties of detected pathogens can be increased or decreased as required on the basis.