摘要:
The invention provides a cell for preparing competent cells, wherein the cell is capable of spontaneously accumulating self-producing trehalose therein and the cell is used for the preparation of competent cells. The invention also provides a method for preparing competent cells, including: culturing the cell for preparing the competent cell mentioned previously to obtain a cell suspension; placing the cell suspension into an ice bath; centrifuging the cell suspension to obtain a cell precipitate; mixing a transform reagent with the cell precipitate; and obtaining competent cells suspension.
摘要:
Method for producing itaconic acid in yeast cells using glycerol as the substrate. The yeast cells express cis-aconitic acid decarboxylase and optionally, citrate synthase and/or aconitase at high levels.
摘要:
Method for producing itaconic acid in yeast cells using glycerol as the substrate. The yeast cells express cis-aconitic acid decarboxylase and optionally, citrate synthase and/or aconitase at high levels.
摘要:
A hard drive assessing method and a hard drive assessing system supporting a maximum transmission rate of a hard drive are provided, wherein the hard drive is accessed by a controller, and both the controller and the hard drive support a plurality of transmission rates. The maximum transmission rate of the hard drive is first obtained. When the controller reads data from the hard drive, the transmission rate of the controller is set to be not lower than the maximum transmission rate, and the transmission rate of the hard drive is maintained at the maximum transmission rate. When the controller writes data into the hard drive, the transmission rate of the controller is reduced to be lower than the maximum transmission rate, and the transmission rate of the hard drive is maintained at the maximum transmission rate. Thereby, the hard drive can be accessed at its maximum transmission rate.
摘要:
A hard drive assessing method and a hard drive assessing system supporting a maximum transmission rate of a hard drive are provided, wherein the hard drive is accessed by a controller, and both the controller and the hard drive support a plurality of transmission rates. The maximum transmission rate of the hard drive is first obtained. When the controller reads data from the hard drive, the transmission rate of the controller is set to be not lower than the maximum transmission rate, and the transmission rate of the hard drive is maintained at the maximum transmission rate. When the controller writes data into the hard drive, the transmission rate of the controller is reduced to be lower than the maximum transmission rate, and the transmission rate of the hard drive is maintained at the maximum transmission rate. Thereby, the hard drive can be accessed at its maximum transmission rate.