In just half a year and $100,000, Professor David Evans of the University of Alberta in Canada used a DNA fragment ordered from a commercial company to synthesize a horsepox virus that is related to the variola virus and has been extinct in the laboratory. This "ghost virus"
Read moreThe bag dust collector structure consists of: dust collector ash hopper, inlet and outlet air duct, filter chamber (middle and lower tank), clean room, filter bag and frame (bag cage), manual air inlet valve, pneumatic butterfly valve, pulse Cleaning agencies, etc.
Read moreThe heat quota in the general user's room is controlled by the radiator waiting for the temperature to grasp the valve. The radiator waiting temperature mastering valve is assembled by a temperature controller, a flow regulating valve and a pair of coupling memb
Read moreIn the process of cooling, freezing, refrigerating (cooling and freezing) , the weight of food is reduced due to evaporation of water in the food or sublimation of ice crystals, commonly known as “dry consumptionâ€. When the food is dry, not only the weight loss, but also the surfac
Read moreFluidized bed drying is a very effective method of drying solid particles. The surface of the particles suspended in the gas stream is sufficiently exposed to a dry environment to obtain a better heat transfer effect and to shorten the drying time. The same product
Read moreVacuum pump unit Under normal circumstances, the use of water ring vacuum pump as the foreline pump is more advantageous than other vacuum pumps, mainly because it can remove a large amount of condensable steam, especially when the gas ballast mechanical vacuum pump
Read moreThe high and low temperature alternating heat and humidity test chamber is used to test the test workpieces in high temperature, low temperature or hot and humid environment, and to test various performance indicators, which are mainly applicable to various electronic products such as aerospac
Read moreHigh-pressure homogenizers are widely used in production, scientific research and technology development in the fields of food, dairy, beverage, pharmaceutical, fine chemical and bioengineering. (1) As a high-pressure homogenizer: It can make the material liquid re
Read moreAs the name suggests, barcode printers are of course barcode printers that print barcodes. The printer is mainly used in shopping malls to scan items. The bar code printer prints the ink on the ribbon on the bar code printing paper through the print head of the bar
Read moreDue to its variable capacity, self-priming ability, reversible, and ability to transport liquids containing solid particles, screw pumps are widely used in sewage treatment plants for conveying water, wet sludge and flocculant liquids. . The selection of screw pump
Read moreWhen sparsely blooming apple trees, you should first look at the varieties. Varieties with a high fruit setting rate have fewer flowers, those with a lower fruit setting rate have more flowers, large fruits have less flowers, and small fruits have more fl
Read moreIn order to increase the yield of tomatoes in greenhouses in winter, the farmers are reminded to pay attention to the following four points in the management of fertilizer and water. First, pay attention to water regulation In the winter greenhouse, the
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