摘要:
A method of producing a chemical by continuous fermentation includes a fermentation step of converting a fermentation feedstock to a fermentation liquid containing a chemical by fermentation on cultivation of a microorganism; a membrane separation step of recovering the chemical as a filtrate by a separation membrane from the fermentation liquid; a concentrating step of obtaining a permeate and a concentrate containing the chemical by a reverse osmosis membrane from the filtrate; and/or a purification step of distilling the filtrate to increase a purity of the chemical, in which, cleaning etc. of the separation membrane in the membrane separation step is preformed by using the permeated liquid from the reverse osmosis membrane in the concentrating step and/or the condensed liquid in the purification step.
摘要:
A method of producing a chemical includes a fermentation step that converts a fermentation feedstock, through fermentation by culturing a microorganism or culture cells, into a fermented liquid containing the chemical, and a membrane separation step that collects the chemical, as a filtrate, from the fermented liquid with the use of two or more separation membrane modules, and returning the non-filtered liquid to the fermented liquid, wherein in the membrane separation step, timing of the filtration-stop treatment for each separation membrane module is controlled when an intermittent filtration operation including alternately repeating a filtration treatment and a filtration-stop treatment is performed with plural separation membrane modules.
摘要:
The present invention discloses a lane detecting apparatus mounted on a vehicle including a camera for obtaining an image of a lane marking drawn on a road, a candidate line selecting part for selecting one or more candidate lines having edge information no less than an edge threshold from the image obtained by the camera, and a car pool lane determining part for determining whether the difference in the number of the candidate lines between the left side of the vehicle and the right side of the vehicle is no less than a predetermined value. When the difference is no less than the predetermined value, the lane detecting apparatus transfers to a car pool lane detection mode in which the candidate line selecting part detects the one or more candidate lines in accordance with a threshold that is less than the edge threshold.
摘要:
In a vehicle lane detector that detects a lane sign on a road surface, a condition for determining that the lane sign is detected is changed based on one of a frequency and a ratio of detection error of the lane sign.
摘要:
In a vehicle lane detector that detects a lane sign on a road surface, a condition for determining that the lane sign is detected is changed based on one of a frequency and a ratio of detection error of the lane sign.
摘要:
Cells of a novel strain of Drechslera monoceras having practical weed controlling activity against barnyard grass (Echinochloa spp.) at temperatures ranging from 26° C. to 35° C., and exhibiting no pathogenicity to major crops, including rice, are used as a herbicidal component.