公开(公告)号：KR1020140006282A

公开(公告)日：2014-01-16

申请号：KR1020120071695

申请日：2012-07-02

Applicant: 한국전자통신연구원 ,  서울대학교산학협력단

Inventor： 유성진 ,  박진석 ,  고광진 ,  정병장 ,  전화숙 ,  김주희

IPC: H04W16/06 ,  H04W72/04

CPC classification number: H04W72/0493 ,  H04W16/06 ,  H04W72/0453

Abstract: A method for allocating a radio resource in a wireless communication system including a macrocell and at least one femtocell includes the steps of: identifying a white space which is an empty radio resource, and a macrocell band which is allocated as the radio resource of the macrocell; allocating the radio resource for searching a cell, that is near at least one femtocell, from the macrocell band in a normal resource allocating mode; and allocating the radio resource for each data communication, of at least one femtocell, from the white space in the normal resource allocating mode.

Abstract translation: 一种用于在包括宏小区和至少一个毫微微小区的无线通信系统中分配无线电资源的方法包括以下步骤：识别作为空无线电资源的空白区域和被分配为宏小区的无线电资源的宏小区频带 ; 在正常资源分配模式中，从宏小区频段分配无线电资源，用于搜索位于至少一个毫微微小区附近的小区; 以及在正常资源分配模式中从白空间分配至少一个毫微微小区的每个数据通信的无线电资源。

公开(公告)号：KR101391685B1

公开(公告)日：2014-05-07

申请号：KR1020120097574

申请日：2012-09-04

Applicant: 서울대학교산학협력단

Inventor： 이윤우 ,  김민수 ,  이홍식 ,  유성진

IPC: C10G3/00 ,  C10L1/02

CPC classification number: Y02E50/13 ,  Y02P30/20

Abstract: 알코올과유지를에스테르교환반응시켜바이오디젤을제조하는방법은금속전구체가용해된알코올과유지를반응기내부로유입시키는단계와, 상기반응기내부에서의용매열반응을통해알코올에용해된금속전구체를금속속산화물로합성하는동시에합성된금속산화물을촉매로하여알코올과상기유지의에스테르교환반응을수행하는단계및 상기용매열반응및 에스테르교환반응을통해형성되는바이오디젤, 글리세롤및 금속산화물을각각분리하여수득하는단계를수행하는단계를포함한다. 상술한방법은용매열반응을통해형성된금속산화물을에스테르교환반응의촉매로이용하여바이오디젤의수율을 2차적으로향상시키는동시에금속산화물을부산물로얻을수 있다.

公开(公告)号：KR1020140032552A

公开(公告)日：2014-03-17

申请号：KR1020120097574

申请日：2012-09-04

Applicant: 서울대학교산학협력단

Inventor： 이윤우 ,  김민수 ,  이홍식 ,  유성진

IPC: C10G3/00 ,  C10L1/02

CPC classification number: Y02E50/13 ,  Y02P30/20 ,  C10L1/02 ,  C10G3/00

Abstract: A method of manufacturing biodiesel by performing trans esterification of alcohol and fat comprises: a step of bringing in the alcohol and fat in which a metal precursor is dissolved to the inside of a reactor; a step of synthesizing the metal precursor, dissolved in the alcohol by having a solvent heat reaction inside the reactor, to a metal oxide and performing trans esterification of alcohol and fat by having the synthesized metal oxide as a catalyst at the same time; a step of respectively separating and obtaining biodiesel, glycerol and metal oxide which are formed through solvent heat reaction and trans esterification. The previously mentioned method is capable of secondarily improving the yield of biodiesel and obtaining metal oxide as a by-product at the same time by using the metal oxide which is formed through solvent heat reaction as the catalyst of trans esterification. [Reference numerals] (AA) Start; (BB) End; (S110) Prepare fat and alcohol in which a metal precursor is dissolved; (S120) Bring in the fat and the alcohol in which a metal precursor is dissolved, inside the reactor; (S130) Synthesize the metal precursor to metal oxide through solvent heat reaction; (S140) Accelerate the esterification reaction of the fat and the alcohol by using metal oxide as catalyst; (S150) Obtain biodiesel, glycerol and metal oxide by separating

Abstract translation: 通过进行醇和脂肪的酯交换制造生物柴油的方法包括：将金属前体溶解的醇和脂肪引入反应器内部的步骤; 通过在反应器内部进行溶剂热反应将金属前体合成金属氧化物并通过合成金属氧化物作为催化剂同时进行醇和脂肪的酯化反应的步骤; 分别分离和获得通过溶剂热反应和反式酯化形成的生物柴油，甘油和金属氧化物的步骤。 上述方法能够通过使用通过溶剂热反应形成的金属氧化物作为反式酯化催化剂，同时提高生物柴油的产率并同时获得作为副产物的金属氧化物。 （附图标记）（AA）开始; （BB）结束; （S110）准备溶解金属前体的脂肪和酒精; （S120）在反应器内引入溶解有金属前体的脂肪和醇; （S130）通过溶剂热反应合成金属前体与金属氧化物; （S140）使用金属氧化物作为催化剂加速脂肪和醇的酯化反应; （S150）通过分离获得生物柴油，甘油和金属氧化物