Abstract:
Provided are corynebacterium including an NAD+ dependent formate dehydrogenase gene, and a method for producing C4 dicarboxylic acid using the same. The production of reductive metabolites can increase under an anaerobic condition without adding formate, a substrate, by using the corynebacterium.
Abstract:
An aspect of the present invention relates to Pdh with an increased activity under an anaerobic condition, and a microorganism including the same. If the Pdh activity increases under the anaerobic condition, an acetyl-CoA metabolism process can be compelled. Accordingly, a compound can be produced by using metabolism products of a TCA cycle. Furthermore, the microorganism produced thereby can increase the production amount of 1,4-BDO under the anaerobic condition. The method can be applied to various microorganisms used in a fermentation process. The method contributes to the yield improvement of the fermentation process, thereby being usefully used in industry.
Abstract:
In the present invention, suggested is a method for preventing unauthorized administrator privileges related to an operating system mounted on a mobile terminal. For this, the present invention prevents a trial by dropping a system call without transmitting the system call to the operating system by determining the trial to obtain abnormal administrator privileges if the system call corresponds to a specific execution path through determining whether the system call is a specific execution path (specific process execution) when the system call for executing a process of the administrator privilege is processed. The abnormal rise of the administrator privilege is prevented by determining the trial to obtain the unauthorized administrator privilege. Thereby, a malicious terminal operation using the abnormal rise of the administrator privilege is previously prevented.
Abstract:
The present invention relates to a method and an apparatus for managing a signature-based application, which are capable of examining credibility of an application to be installed or executed and managing installation and execution thereof accordingly. The application management method for a user device includes: receiving a user input for installing an application; acquiring signature information of the application and comparing the signature information of the application with an authentication list stored in a signature information storage; terminating installation of the application when the signature information is registered in a blacklist of the authentication list; directly installing the application when the signature information is registered in a whitelist of the authentication list,; and selectively installing the application according to user consent when the signature information is not registered in either the blacklist or the whitelist. [Reference numerals] (200) Application manager; (210) Application installation control unit; (220) Application execution control unit; (230) Signature information storage management unit; (300) Signature information storage; (310) Whitelist; (330) Blacklist