Tmaxsoft Co., Ltd.

Yonsei University

Lsis Co., Ltd.

Hyundai Motor Company

Kia Motors Corporation

Osong Medical Innovation Foundation, Korea University Research and Business Foundation

Snu Rdb Foundation

Hee Jin Lee

Yong Ho Chung

Gum Tae Son

Kyeon Hur

Seung Taek Baek

Young Hwi Jang

Wook Hwa Lee

Jung Wook Park

Kyoung Heon Kim

Chong Kwon Kim

In-Geol Choi

Moon Namkoong

Kyung Koo Yoon

Kyoung Min Ryoo

Sung Bae Yoon

Hyo Jun Kwak

Tae Sik Nam

Yong Hyu Kim

In Jung Kim

Seong Il Hahm

Seoung Taek Baek

A system and a method for reducing the acceleration shock of an electric motor vehicle are provided. A backlash torque range is determined based on a coast down value indicating the motor torque for maintaining a vehicle speed. A slope of the motor torque that falls within a backlash torque range is reduced and corrected, considering that the motor torque for causing backlash is changed as the motor speed changes, thereby reducing the shock due to the backlash at the acceleration (start-up) of a vehicle.

System and method for reducing acceleration shock of electric motor vehicle

A method for auto-scaling at least one web server and at least one WAS (Web Application Server) is provided. The method includes a WAS administrating server grouping, as a first service group, both at least one first web server and at least one first WAS, which are connected with each other to provide a first application service, and grouping, as a second service group, both at least one second web server and at least one second WAS, which are connected with each other to provide a second application service, to thereby create at least two groups each of which includes at least its corresponding pair of web server and WAS, and the WAS administrating server allowing each of the grouped pairs of the web servers and the WAS's to be scaled out or scaled in, independently, by a process of scaling-out or scaling-in.

Method for auto-scaling of web server and web application server and was administrating server using the same

A method for recording metadata for web caching in a cloud environment is provided. The method includes steps of: (a) a first web server caching file information of a first web server container corresponding to itself in a first cache memory in the first web server container; (b) the first web server recording metadata of the first cache memory in a common file storage; and (c) the first web server, if the first web server is scaled out by adding a second web server, allowing the second web server to access the common file storage, to thereby allow the metadata to be recorded in a second cache memory in a second web server container corresponding to the second web server.

Method for recording metadata for web caching in cloud environment and web server using the same

A method for managing a thread pool size dynamically using elemental task throughputs is provided. The method includes steps of: a computing device (a) calculating a first representative task throughput corresponding to a first group including elemental task throughputs during the first time section, and then increasing a maximum thread value for the first time section and setting it as a maximum thread value for the second time section; (b) calculating a second representative task throughput corresponding to a second group including elemental task throughputs during the second time section; and (c) comparing the first and the second representative task throughput and then, if the latter is greater than the former by an amount equal to or greater than a preset first threshold value, increasing the maximum thread value for the second time section and setting it as a maximum thread value for a third time section.

Method and computing device for managing size of thread pool dynamically

The present invention provides-derived recombinant cellulase and a use thereof. The recombinant cellulase according to the present invention has a high stability at a high temperature and an optimized activity at a neutral pH, and therefore has a high availability in a process. Also, since the cellulase according to the present invention has an exoglucanase activity as well as an endoglucanase activity, a monosaccharide can be produced during decomposition of cellulose and an additional treatment required in a fermentation process is not needed, and therefore a cost may be reduced. Such an enzyme activity is advantageous to a fermentation or thermal treatment condition for producing a biofuel, and therefore industrial profits may be achieved.

Recombinant cellulase and use thereof

The present disclosure provides a method for controlling a multilevel converter, the method including, detecting modulation state values and current directions of sub-modules, and designating, by one sub-module, an average number of switching for each period of an output waveform, wherein the step of designating the average number of switching includes, grouping the sub-modules according to being in ON state or in OFF state, comparing the number of sub-modules in previous ON state and the number of sub-modules in OFF state to obtain a difference therebetween, and changing a state as much as the difference, comparing a sub-module of ON state in charged state and in discharged state with a sub-module of OFF state, and changing the compared states of sub-modules of ON state and OFF state.

Method for controlling multilevel converter

A method of controlling a multilevel converter is provided. In the method of controlling a multilevel converter according to an embodiment, a sub-module having the maximum voltage and a sub-module having the minimum voltage respectively are extracted from among a plurality of sub-modules. An amount of state variation of each of the plurality of sub-modules is determined. When the amount of state variation is not determined to be 0, a direction of a current flowing through the plurality of sub-modules is detected. A subsequent state of at least one sub-module is determined according to at least one of the amount of the state variation and current direction. Subsequently an arrangement time for sub-module values can be efficiently reduced while the number of the sub-modules increases in the voltage balancing.

Method of controlling multi level converter

The present invention relates to a WLAN virtualization system which is capable of efficiently separating a Basic Service Set (BSS) into a plurality of virtual BSSs in a Time Division Multiplexing (TDM) manner. The WLAN virtualization system includes an Access Point (AP) for providing a plurality of vBSSs, and a plurality of stations corresponding to the vBSSs provided by the AP. Each of the vBSSs is operated on a superframe basis, the superframe being scheduled by a beacon frame transmitted from the AP. The superframe includes the beacon frame, one contention-free period, and one contention period. The CPs of the vBSSs include intervals which do not overlap each other. The vBSSs can be classified into any groups designated by a service provider based on certain criteria such as physical layer, QoS, security level, or network access authority, and times can be allocated to superframes at different rates or frequencies.

Access point for providing WLAN virtualization, WLAN virtualization system and method of providing access to wireless communication network

Growing community of inventors

Seoul, South Korea

Hee Jin Lee