公开(公告)号：KR101429248B1

公开(公告)日：2014-08-12

申请号：KR1020110053850

申请日：2011-06-03

Applicant: 서울대학교산학협력단

Inventor： 이정학 ,  양천석 ,  이정기 ,  한종윤

IPC: C02F3/12 ,  C02F3/06

CPC classification number: Y02W10/15

Abstract: 본 발명은 수처리용 분리막 생물 반응조 (membrane bioreactor, MBR) 시스템에서 운전이 진행됨에 따라 분리막 표면에서 성장하는 생물막에 의해 야기되는 생물막오염(biofouling)을 억제하기 위한 기술에 관한 것으로서, 메조포러스(mesoporous) 실리카 담체에 정족수 감지 억제 효소를 고정화시키고, 이를 폴리아마이드(polyamide) 재질의 효소 주머니(enzyme bag)를 이용하여 고정화 담체의 흡착과 유실없이 안정적으로 운전할 수 있는 것을 특징으로 하는 분리막 생물 반응조를 제공한다.

公开(公告)号：KR1020140004968A

公开(公告)日：2014-01-14

申请号：KR1020120072500

申请日：2012-07-03

Applicant: 엘에스산전 주식회사 ,  서울대학교산학협력단

Inventor： 김우섭 ,  이재호 ,  양천석 ,  이제현 ,  조보형

IPC: H02M1/15 ,  H02M3/325 ,  H02H7/12

CPC classification number: H02M1/15 ,  H01L2924/13091 ,  H02H7/1213 ,  H02M3/325 ,  Y02B70/1491

Abstract: The present invention relates to an apparatus for driving an interleaved full bridge converter, which comprises: a driving switch unit including six driving switches of which one pair is respectively connected in serial to a first leg, a second leg, and a third leg, and generating alternating voltage by switching direct current; a transformer unit, which is divided into two modules, performing voltage transformation with the alternating voltage generated from the driving switch unit according to a winding ratio of a primary winding to a secondary winding; a rectifier and filter unit, which is divided into two modules, outputting an output voltage of the transform unit after rectifying and filtering the output voltage; and a driving control unit outputting switching control signals to the driving switch unit, wherein the driving control unit outputs the switching control signals, based on a waveform of a switching control signal for the second leg, for a waveform of a switching control signal for the first leg to overlap the waveform of the switching control signal for the second leg as much as a first phase angle from the start of the waveform of the switching control signal for the second leg, and for a waveform of a switching control signal for the third leg to overlap the waveform of the switching control signal for the second leg as much as a second phase angle from the end of the waveform of the switching control signal for the second leg.

Abstract translation: 本发明涉及一种用于驱动交错式全桥转换器的装置，该装置包括：驱动开关单元，包括六个驱动开关，其中一对分别串联连接到第一支腿，第二支脚和第三支脚，以及 通过切换直流电产生交流电压; 变压器单元，其被分成两个模块，根据初级绕组与次级绕组的绕组比，根据从驱动开关单元产生的交流电压进行电压变换; 整流器和滤波器单元，其被分成两个模块，在整流和滤波输出电压之后输出变换单元的输出电压; 以及向所述驱动开关单元输出切换控制信号的驱动控制单元，其中，所述驱动控制单元基于所述第二支路的切换控制信号的波形，输出所述切换控制信号的开关控制信号的波形 第一支路，与第二支路的开关控制信号的波形开始时的第二支路的开关控制信号的波形重叠多达第一相位角，以及第三支路的开关控制信号的波形 从第二支路的开关控制信号的波形结束起与第二支路的开关控制信号的波形重叠多达第二相位角。

公开(公告)号：KR1020120134724A

公开(公告)日：2012-12-12

申请号：KR1020110053850

申请日：2011-06-03

Applicant: 서울대학교산학협력단

Inventor： 이정학 ,  양천석 ,  이정기 ,  한종윤

IPC: C02F3/12 ,  C02F3/06

CPC classification number: Y02W10/15 ,  C02F3/1273 ,  C02F3/06

Abstract: PURPOSE: An enzyme bag containing silica-immobilized enzyme for inhibiting biofilm formation and a membrane bioreactor system for water treatment using the bag are provided to stably implement filtering operations for a long period of time by improving the performance of operational processes. CONSTITUTION: An enzyme bag containing enzyme for inhibiting biofilm formation includes a porous bag and a silica-based carrier. The silica-based carrier is positioned in the porous bag. The enzyme for inhibiting biofilm formation is chemically immobilized on the silica-based carrier. The silica-based carrier includes mesoporous silica. The average pore diameter of the porous bag is smaller than the average diameter of the silica-based carrier. The enzyme for inhibiting biofilm formation includes quorum quenching enzyme. The quorum quenching enzyme is lactonase or acylase. [Reference numerals] (AA) Enzyme bag; (BB) Base material: polyamide; (CC) Size of pores: 132um; (DD) Silica-immobilized enzyme for inhibiting biofilm formation; (EE) Base material: mesoporous silica; (FF) Size of particles: 250-500um

Abstract translation: 目的：提供一种含有用于抑制生物膜形成的二氧化硅固定化酶的酶袋和使用该袋进行水处理的膜生物反应器系统，以通过改善操作过程的性能来稳定地实施长时间的过滤操作。 构成：含酶抑制生物膜形成的酶袋包括多孔袋和基于二氧化硅的载体。 二氧化硅基载体位于多孔袋中。 用于抑制生物膜形成的酶化学固定在二氧化硅基载体上。 二氧化硅基载体包括介孔二氧化硅。 多孔袋的平均孔径小于二氧化硅系载体的平均直径。 抑制生物膜形成的酶包括法定猝灭酶。 法定猝灭酶是内酯酶或酰基转移酶。 （标号）（AA）酶袋; （BB）基材：聚酰胺; （CC）毛孔大小：132um; （DD）用于抑制生物膜形成的二氧化硅固定化酶; （EE）基材：介孔二氧化硅; （FF）颗粒尺寸：250-500um

公开(公告)号：KR1020140047981A

公开(公告)日：2014-04-23

申请号：KR1020120114419

申请日：2012-10-15

Applicant: 엘에스산전 주식회사 ,  서울대학교산학협력단

Inventor： 김우섭 ,  이재호 ,  양천석 ,  이승운 ,  조보형

IPC: H02M3/337 ,  H02H7/12 ,  H02P27/02 ,  B60H1/00

CPC classification number: H02M3/33569 ,  H02M3/337 ,  B60H1/004 ,  H02H7/1213 ,  H02P27/02

Abstract: A DC-DC converter according to an embodiment of the present invention includes a power input unit to which power is applied; a first module including a first transformer and a second transformer and outputting first output power transformed by the operation of a first switch and a second switch connected to the first transformer and the second transformer using the applied power; a second module including a third transformer and a fourth transformer and outputting second output power transformed by the operation of a third switch and a fourth switch connected to the third transformer and the fourth transformer using the applied power; and an output unit outputting total power of the first output power and the second output power; and a control unit controlling the interleaving operation of the first module and the second module.

Abstract translation: 根据本发明实施例的DC-DC转换器包括：施加电力的电力输入单元; 第一模块，包括第一变压器和第二变压器，并且输出通过第一开关的操作变换的第一输出功率和使用所施加的功率连接到第一变压器和第二变压器的第二开关; 第二模块，包括第三变压器和第四变压器，并且输出通过第三开关的操作变换的第二输出功率和使用所施加的功率连接到第三变压器和第四变压器的第四开关; 以及输出单元，输出第一输出功率和第二输出功率的总功率; 以及控制单元，控制第一模块和第二模块的交织操作。