• Journal of the Semiconductor & Display Technology
• /
• v.7 no.4
• /
• pp.1-5
• /
• 2008

There is a need to enlarge the mother glass substrate in OLED to raise its productivity and to realize OLED TV. On the other hand, some difficulties may arise regarding the deflection of a large glass substrate during its handling operation due to its thinness $(0.5\sim0.7t)$, which is not even enough to allow it to stand its own mass. This thesis proposes a conceptual plan for the application of the clamping- and bending-end conditions to the glass substrate handler. To verify proposed plan, the non-contact 3 dimensional measuring instrument is developed. The composition of the 3 dimensional measuring instrument measures shape of the product using X-Y stage robot and laser distance sensor. X-Y stage robot and laser distance sensor are controlled by LabVIEW language. To calibrate measuring instrument, the direction conversion of the Euler angle was used. In order to confirm deflection of the glass substrate, the experiment was carried out at the bending end boundary condition and the proposed effect was verified.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2018.01a
• /
• pp.45-46
• /
• 2018

메모리 모듈 핸들러가 동작을 할 때에는 정상적인 동작을 주로 하지만, 모터나 실린더 혹은 센서의 오동작으로 인하여 알람이 발생할 때가 있다. 이때 해당 알람에 대한 고유의 알람 코드가 있어야 하며, 기존 방식은 알람을 순서대로 나열하여 작성하거나, 모터나 IO를 기준으로 하여 알람 코드를 작성하였다. 그러나 모터나 IO수가 늘어남에 따라 알람코드를 생성하는 일이 매우 큰 일이 되었다. 또한 작성자에 따라서 일관성도 없어서 알람코드가 추가되지 않은 알람에 대해서는 소스 없이 알람 코드만 보고 어떤 알람인지 판단하기가 어려워져, 알람 발생에 대해 신속한 대응을 할 수가 없게 되었다. 이러한 문제를 해결하기 위해 모터와 IO에 대한 알람은 알람코드에 일정한 규칙을 만들어 신속히 생성하고, 소스에도 바로 추가시킬 수 있으며, 작성자가 다르더라도 일관성 있는 알람 코드가 추가되어 어떤 장비라도 어느 알람인지 알 수 있는 알고리즘을 제안한다.

• Journal of the Korea Society of Computer and Information
• /
• v.14 no.2
• /
• pp.191-199
• /
• 2009

In this paper we present a light weighted robust Korean morphological analyzer for mobile devices such as mobile phones, smart phones, and PDA phones. Such mobile devices are not suitable for natural language interfaces for their low CPU performance and memory restriction. In order to overcome the difficulties we propose 1) an online analysis by using Key Event Handler mechanism, 2) and a robust analysis of the Korean sentences with spacing errors without its correction pre-processing. We adapt the proposed Korean analyzer to a Korean-English mobile translator, which shows 5.8% memory usage reduction and 19.0% enhancement of average response time.

• Proceedings of the IEEK Conference
• /
• 2003.07d
• /
• pp.1383-1386
• /
• 2003

In this paper, an ALU for Simultaneous Multi-Threading (SMT) microprocessors is designed. The SMT architecture improves notably performance and utilization of processes compared with conventional superscalar architectures by executing instructions from multiple threads at the same time. This ALU adopts data bypassing method to process multi-threads. And it can flush instructions in the same thread that generate exceptions such as branch misprediction. interrupt etc, performance of SMT microprocessors with data bypassing and exception handler can be improved.

• Journal of Veterinary Clinics
• /
• v.17 no.1
• /
• pp.293-294
• /
• 2000

6개월령의 숫 낙타와 29세의 남성 낙타 관리인에서 발생한 Trichophyton verrucosum에 의한 진균감염증에 대해 보고하였다. 이 감염증은 피부 병변으로부터 KOH 기술에 의해 균 요소를 증명하고, 또한 감염된 피부의 소파물로부터 Trichophyton verrucosum을 분리하여 확진하였다. 낙타에서는 안면에 국한하여 병변이 발생하고, 관리인에서는 손에 발생하였다. 화학요법으로서 낙타에게는 2% 옥도정기를 사용하고, 관리인에게는 2% miconazole 연고를 사용하였다. 이 보고는 인도에 사는 단봉낙타로부터 Trichophyton verrucosum이 직접 사람에게 전염된 최초의 보고로 생각된다. 이 보고에서 단봉낙타의 피부염 감별진단에 Trichophyton verrucosum도 고려해야 한다는 사실을 제시하였다.

• Proceedings of the Korean Information Science Society Conference
• /
• 2003.10c
• /
• pp.82-84
• /
• 2003

본 논문에서는 최근의 웹 서비스 표준 및 기술의 정비를 활용하면서 인터넷 환경에서 기업내, 외 응용 프로그램 통합 요청에 부합하는 eAI 프레임웍을 워크플로우 시스템과 연계시켜 고안하고 설계한다. 제시된 eAI 프레임웍은 eAI 플랫폼, 어댑터. 데이터 브로커, 워크플로우 시스템 등 4개의 소프트웨어 모듈을 포함하며 논문에서는 각각의 모듈이 소개된다. 고안된 eAI 프레임웍에서는 eAI 플랫폼을 구성하는 웹 서비스 게이트웨이를 매개로 방화벽을 뛰어넘으면서 다양한 프로토콜로 외부 응용 프로그램과 연동할 수 있으며 MSH(Message Service Handler)를 통하여 기존의 응용 프로그램 들과도 손쉽게 연결될 수 있다.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• v.10 no.2
• /
• pp.484-503
• /
• 2016

Mobile cloud computing has recently become a new paradigm for the utilization of a variety of shared mobile resources via wireless network environments. However, due to the inherent characteristics of mobile devices, a limited battery life, and a network access requirement, it is necessary for mobile servers to provide a dynamic approach for managing mobile resources efficiently in mobile cloud computing environments. Since on-demand job requests occur frequently and the number of mobile devices is drastically increased in mobile cloud computing environments, a different mobile resource management method is required to maximize the computational power. In this paper, we therefore propose a cooperative, mobile resource sharing method that considers both the inherent properties and the number of mobile devices in mobile cloud environments. The proposed method is composed of four main components: mobile resource monitor, job handler, resource handler, and results consolidator. In contrast with conventional mobile cloud computing, each mobile device under the proposed method can be either a service consumer or a service provider in the cloud. Even though each device is resource-poor when a job is processed independently, the computational power is dramatically increased under the proposed method, as the devices cooperate simultaneously for a job. Therefore, the mobile computing power throughput is dynamically increased, while the computation time for a given job is reduced. We conduct case-based experiments to validate the proposed method, whereby the feasibility of the method for the purpose of cooperative computation is shown.

• Journal of the Korean Institute of Telematics and Electronics S
• /
• v.35S no.10
• /
• pp.77-84
• /
• 1998

The temperature difference occurs at the test points of chamber, because the traditional Test Handler consists of a heater and a fan. To reduce the temperature variation at different points in the chamber, we divided the heater to three parts which are controlled independently. First, we identified the chamber's parameter and then designed a LQG controllers by the identification model. RTD sensors and VME system were used to construct the temperature control system. In our experiment for the proposed control system, the temperature variation was reduced from ${\pm}1.5^{\circ}C$ to ${\pm}0.35^{\circ}C$ at 50$^{\circ}C$ ${\cdot}$ 80$^{\circ}C$ and 120$^{\circ}C$.

• Journal of the Institute of Convergence Signal Processing
• /
• v.5 no.2
• /
• pp.165-171
• /
• 2004

Owing to small sizes and high density to the semiconductor It, it is difficult to discriminate the defects of ICs by human eyes. High precision inspection system with computer vision is essentially established for the manufacturing process due to the variety of defective parts. Especially it is difficult to implement the algorithm for the coplanarity of IC leads. Therefore in this paper, the inspection system which can detect the defects of the SOP types of ICs having 1cm${\times}$0.5cm of the chip size is implemented and evaluated it's performance. In order to optimally detect various items, some principles of geometry are theoretically presented , length measurement, pitch measurement, angle measurement, brightness of image and correcton of position. The interface circuit is designed for implementation of inspection system and connected the HANDLER. In the result, the system could detect two ICs' defects per second and confirmed the resolution of 20$\mu$m per pixel.

• 한국정보통신설비학회:학술대회논문집
• /
• 2008.08a
• /
• pp.372-375
• /
• 2008

IEEE 802.11e standardized the EDCA mechanism to support the priority based QoS. And the virtual collision handler schedules the transmission time of each MAC frame using the internal back-off window according to the access category(AC). This can provides the differentiated QoS to real-time services at the medium traffic load condition. However, the transmission delay of MAC frame for real-time services may be increased as the traffic load of best effort service increases. It becomes more critical when the real-time service uses a compressed mode video codec such as moving picture experts group(MPEG) 4 codec. That is because each frame has the different importance. That is, the I-frame has more information as compared with the P- and the B-frame. In this paper, we proposed a buffer management algorithm based on the frame importance and the delay bound. The proposed algorithm is consisted of the traffic regulator based on the dual token bucket algorithm and the active queue management algorithm. The traffic regulator reduces the transmission rate of lower AC until that the virtual collision handler can transmit an I-frame. And the active queue management discards frame based on the importance of each frame and the delay bound of head of line(HoL) frame when the channel resource is insufficient.