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公开(公告)号：KR101207968B1
公开(公告)日：2012-12-04
申请号：KR1020110130395
申请日：2011-12-07
Applicant: 한국과학기술원
Abstract: PURPOSE: A method for manufacturing an optofluidic element in which a metallic sphere gap nano structures are accumulated is provided to reduce costs and time for a process and simplify a process condition by using a self-assembly phenomenon of colloid. CONSTITUTION: A method for manufacturing an optofluidic element in which a metallic sphere gap nano structures are accumulated comprises next steps. Colloid particle layer of a single story, in which colloid particles are regularly arranged, is formed on the top of a polymer thin film, thereby being dipped into the polymer thin film. The colloid particles dipped into the polymer thin film are eliminated so that a spherical pore structure of a nano meter scale is formed on the polymer thin film. A metallic thin film is deposited so that a metallic thin film in the inside of a gap and the metallic thin film on the top of the polymer thin film are discontinuously formed. A patterned metallic structure is manufactured by using an UV-crosslinkable polymer. Minute flexible fluidic elements are integrated in the patterned metallic structure. [Reference numerals] (AA) Colloid particle; (BB) Impregnation; (CC) Eliminating colloid particle; (DD) Polymer; (EE) Depositing metal thin film
Abstract translation: 目的：提供一种制造其中积聚有金属球隙纳米结构的光流体元件的方法，以减少工艺的成本和时间，并通过使用胶体的自组装现象来简化工艺条件。 构成：用于制造其中积聚金属球隙纳米结构的光流体元件的方法包括以下步骤。 在聚合物薄膜的顶部形成单层胶体粒子规则排列的单层胶体颗粒层，从而浸入聚合物薄膜中。 去除浸入聚合物薄膜中的胶体颗粒，使得在聚合物薄膜上形成纳米级的球形孔结构。 沉积金属薄膜，使间隙内的金属薄膜和聚合物薄膜顶部的金属薄膜不连续地形成。 通过使用可UV交联的聚合物制造图案化的金属结构。 分钟柔性流体元件集成在图案化金属结构中。 （AA）胶体颗粒; （BB）浸渍; （CC）消除胶体颗粒; （DD）聚合物; （EE）沉积金属薄膜
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公开(公告)号：KR101370244B1
公开(公告)日：2014-03-06
申请号：KR1020120114607
申请日：2012-10-16
Applicant: 한국과학기술원
CPC classification number: H04L63/1458 , H04L2463/142
Abstract: The present invention relates to a method for detecting and blocking distributed denial of service (DDos) evolved from an application layer DDoS attack and a device for the same. The method for detecting and blocking the application layer DDoS attack comprises the steps of: transmitting a link address of a web page to a client after modification and obfuscation; determining reliability by comparing a link address that the client accesses and the link address transmitted to the client; setting a reference value as a reference for blocking access to the web page, and deciding whether to block access to the web page of the client by comparing the reliability and the reference value. [Reference numerals] (110) Whether a server is overloaded?; (111) Change a link address of a web page transmitted based on each client information; (112) Obfuscate the changed link address; (113) Waiting for connection after transmitting the changed link address to a client; (120) Client access link address is the changed link address?; (121) Negative points on client's reliability; (122) Plus points on the client's reliability; (130) Reliability
Abstract translation: 本发明涉及一种用于检测和阻止从应用层DDoS攻击演变而来的分布式拒绝服务（DDos）及其设备的方法。 用于检测和阻止应用层DDoS攻击的方法包括以下步骤：在修改和混淆之后向客户端发送网页的链接地址; 通过比较客户端访问的链路地址和发送给客户端的链路地址来确定可靠性; 将参考值设置为阻止对网页的访问的参考，并且通过比较可靠性和参考值来决定是否阻止对客户端的网页的访问。 （附图标记）（110）服务器是否过载？ （111）根据每个客户端信息更改发送的网页的链接地址; （112）模糊变更的链接地址; （113）在将更改的链路地址发送给客户端之后等待连接; （120）客户端访问链接地址是更改后的链接地址？ （121）客户可靠性的负面点; （122）加点客户的可靠性; （130）可靠性<参考值 （131）阻止相应的客户端; （AA）开始
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Patent Agency Ranking
公开(公告)号：KR100922894B1
公开(公告)日：2009-10-22
申请号：KR1020080026496
申请日：2008-03-21
Applicant: 한국과학기술원
IPC: G02B6/032
Abstract: 본 발명은 광도파로 및 그의 제조방법에 관한 것으로, 굴절률 차이가 큰 액상의 코어 층과 기상의 클래드 층을 포함한다. 본 발명에 의하면, 값싼 복제 주조 공정을 통해 미세 유체 소자를 형성하고, 상기 미세 유체 소자를 소수성의 플루오르계 자기조립 단분자막으로 표면처리를 한 후 액상과 기상의 층류 흐름을 형성함으로써 높은 포획률과 낮은 광도파로 손실의 효과를 나타내는 광도파로 및 미세 광원을 제조할 수 있다. 또한, 액상의 코어에 포함된 형광 물질을 여기하여 발광 및 도파시켜 집적화된 광자 유체 미세 광원과 광도파로를 형성할 수 있다.
광도파로, 액상 코어, 기상 클래드, 미세 유체 소자-
公开(公告)号：KR100646827B1
公开(公告)日：2006-11-23
申请号：KR1020050043529
申请日：2005-05-24
Applicant: 한국과학기술원
IPC: H04L12/28
Abstract: A method for selecting an intrusion detection agent of a mobile ad hoc network is provided to monitor the overall network thoroughly and effectively use network resources. Each agent of a network transmits a control packet to neighbor agents in order to recognize the amount of battery energy of the neighbor agents. Each agent compares an amount of its battery energy with that of neighbor agents. Each agent selects an agent having the largest amount of battery energy. Each agent transmits a select message to the selected agent. The selected agent performs intrusion detection of the network.
Abstract translation: 提供了一种选择移动ad hoc网络的入侵检测代理的方法，以全面监控整个网络并有效利用网络资源。 网络的每个代理向邻居代理发送控制分组以识别邻居代理的电池能量。 每个代理都会将其电池能量与相邻代理的电量进行比较。 每个代理选择具有最大电池能量的代理。 每个代理向选定的代理发送选择消息。 所选代理执行网络的入侵检测。
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公开(公告)号：KR1020090100956A
公开(公告)日：2009-09-24
申请号：KR1020080026496
申请日：2008-03-21
Applicant: 한국과학기술원
IPC: G02B6/032
Abstract: PURPOSE: An optical waveguide including gas core and gas clad for improving the loss of the optical waveguide is provided to use micro fluid device through a cheap replication casting process by using air as clad. CONSTITUTION: An optical waveguide includes a core layer and an air clad layer. The core layer includes fluorescent material. The core material of the liquid controls the fluid according to the height, the size and shape of the fine fluorescent material. The core layer is composed of the material selected from the polypropylene carbonate and the ethylene glycol.
Abstract translation: 目的：提供一种包括气芯和气体包层的光波导，用于改善光波导的损耗，通过使用空气作为包层通过廉价的复制铸造工艺来使用微流体装置。 构成：光波导包括芯层和空气包层。 芯层包括荧光材料。 液体的核心材料根据高度，细小荧光材料的尺寸和形状来控制流体。 芯层由选自聚碳酸丙烯酯和乙二醇的材料组成。
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公开(公告)号：KR100733830B1
公开(公告)日：2007-07-02
申请号：KR1020050049207
申请日：2005-06-09
Applicant: 한국과학기술원 , 충남대학교산학협력단
Abstract: 본 발명은 광대역 네트워크에 있어서의 분산 서비스 거부(DDoS) 공격 탐지 및 대응 방법에 관한 것으로, 각 라우터에서 출력 큐의 패킷 손실 확률을 구하는 단계와, 출력 큐의 손실 확률이 소정의 임계치 이상이거나 또는 상기 출력 큐로 들어오는 패킷의 도착률과 출력 큐의 대역폭의 비가 1 이상인 경우, 상기 출력 큐의 라우터가 하류측 라우터들에게 혼잡 상황임을 알리는 경고 메시지를 보내는 단계와, 상기 경고 메시지를 공격 대상을 포함하고 있는 말단 라우터로 전송하는 단계와, 상기 말단 라우터가 상기 경고 메시지를 기초로 공격 경로를 재구성하는 단계 및 상기 말단 라우터가 상기 재구성된 공격 경로 중 상기 말단 라우터로부터 가장 멀리 떨어진 라우터들에게 패킷 여과를 요청하는 메시지를 보내는 단계를 포함한다.
DDoS 공격, 출력 큐, 패킷 손실 확률, 싱글 서버 큐잉 모델-
公开(公告)号：KR1020060130892A
公开(公告)日：2006-12-20
申请号：KR1020050049207
申请日：2005-06-09
Applicant: 한국과학기술원 , 충남대학교산학협력단
Abstract: A DDoS(Distributed Denial of Service) attack detecting and coping method in a broadband network is provided to enable an edge router to detect an attack, while routers nearest to the source of the attack can perform a packet filtering process, thus a DDoS attack can be effectively and exactly detected to cope with the attack while loss of network resources is minimized. Each router calculates a probability of packet loss of outputted queues. If the probability of the outputted queues is bigger than a predetermined threshold value or a ratio between an arrival rate of packets incoming to the outputted queues and bandwidths of the outputted queues is bigger than 1, the routers of the outputted queues send warning messages indicative of a congested situation to lower routers. The warning messages are transmitted to an edge router which contains an attacking target. The edge router reconfigures attacking paths on the basis of the warning messages. The edge router sends a message which demands packet filtering to routers farthest from the edge router among the reconfigured attacking paths.
Abstract translation: 提供宽带网络中的DDoS（分布式拒绝服务）攻击检测和应对方法，使边缘路由器能够检测到攻击，而最靠近攻击源的路由器可以进行包过滤，DDoS攻击可以 在网络资源丢失最小化的情况下，有效和准确地检测到应对攻击。 每个路由器计算输出队列的丢包概率。 如果输出队列的概率大于预定阈值，或者输入到输出队列的分组到达速率与输出队列的带宽之间的比例大于1，则输出队列的路由器发送指示 拥挤的情况下降路由器。 警告消息被传送到包含攻击目标的边缘路由器。 边缘路由器根据警告消息重新配置攻击路径。 边缘路由器向重新配置的攻击路径中的边缘路由器最远的路由器发送一个要求数据包过滤的消息。
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