• Title/Summary/Keyword: EOD

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The Direction of EOD Robot(Manipulator) Developments in ROK (한국군 폭발물처리 로봇 개발 방향에 대한 고찰)

  • Lee, Seung-Ho;Koh, Doo-Yeol;Jung, Won-Suk;Kim, Kyoung-Soo;Kim, Soo-Hyun
    • Journal of the Korea Institute of Military Science and Technology
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    • v.14 no.5
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    • pp.753-759
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    • 2011
  • In this paper, we propose the direction of development for EOD robot. We collected and analyzed the opinions of EOD teams. In order to verify the opinions, we conducted QFD(Quality Function Deployment) analysis. Based on the QFD analysis, we work out the priority of EOD robot development. And we establish the goal of development(target system) and suggest the development direction of EOD robot on each issue.

Kernel Analysis of Weighted Linear Interpolation Based on Even-Odd Decomposition (짝수 홀수 분해 기반의 가중 선형 보간법을 위한 커널 분석)

  • Oh, Eun-ju;Yoo, Hoon
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.22 no.11
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    • pp.1455-1461
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    • 2018
  • This paper presents a kernel analysis of weighted linear interpolation based on even-odd decomposition (EOD). The EOD method has advantages in that it provides low-complexity and improved image quality than the CCI method. However, since the kernel of EOD has not studied before and its analysis has not been addressed yet, this paper proposes the kernel function and its analysis. The kernel function is divided into odd and even terms. And then, the kernel is accomplished by summing the two terms. The proposed kernel is adjustable by a parameter. The parameter influences efficiency in the EOD based WLI process. Also, the kernel shapes are proposed by adjusting the parameter. In addition, the discussion with respect to the parameter is given to understand the parameter. A preliminary experiment on the kernel shape is presented to understand the adjustable parameter and corresponding kernel.

Education On Demand System Based on e-Learning Standards (e-Learning 표준에 기반한 주문형 교육 시스템)

  • Hong, Gun Ho;Song, Ha Yoon
    • The Journal of Korean Association of Computer Education
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    • v.6 no.3
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    • pp.99-108
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    • 2003
  • This paper indicates limitations of the existing VOD(Video on Demand)-based on-line education systems and presents the design and implementation of Education on Demand (EOD) system as an alternative. EOD system is based on meta information expressed in XML and component technology. Overall system consists of authoring tool. contents server, learning policy system and contents viewer. which are utilized throughout the learning contents life-cycle. EOD system enables automated contents management using meta information exchange methodology that is conformant to the SCORM meta data presentation scheme. In addition, integrated management of interaction and feedback information along with the learning policy system provides customized learning guide for each individual learner. With the development of EOD system, this paper discusses about advanced on-line education system which surpasses existing content-providing-only systems.

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Study of the Design of an Explosive Ordnance Disposal Manipulator for Small Unmanned Ground Vehicle (소형 무인주행로봇에 탑재되는 EOD 매니퓰레이터 설계에 대한 연구)

  • Koh, Doo-Yeol;Lee, Seung-Ho;Rhee, Joon-Seong;Hwang, Ki-Sang;Kim, Soo-Hyun
    • Journal of the Korea Institute of Military Science and Technology
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    • v.14 no.5
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    • pp.948-956
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    • 2011
  • In this paper, mechanism design of the explosive ordnance disposal(EOD) manipulator for small unmanned ground vehicle(SUGV) is presented from the conceptual to detailed design. EOD manipulator has been widely developed in the world due to the growing threat of the improvised explosive devices at war. It has distinctive characteristics, such as small size and high loading performance, compared to the industrial manipulator which is fixed on the floor. Design of new EOD manipulator must take into account various functional requirements and constraints simultaneously. We focused on developing the EOD manipulator that has suitable size for the SUGV and maximum 15kg payload capacity. Design approach taken in this paper is based on axiomatic design procedure and comparison among many possible candidates of each joint structure to obtain appropriate entire structure of EOD manipulator.

Ethanol Extract of Oldenlandia diffusa - an Effective Chemotherapeutic for the Treatment of Colorectal Cancer in Humans -Anti-Cancer Effects of Oldenlandia diffusa-

  • Lee, Soojin;Shim, Ji Hwan;Gim, Huijin;Park, Hyun Soo;Kim, Byung Joo
    • Journal of Pharmacopuncture
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    • v.19 no.1
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    • pp.51-58
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    • 2016
  • Objectives: Oldenlandia diffusa is traditionally used to relieve the symptoms of and to treat various diseases, but its anti-cancer activity has not been well studied. In the present study, the authors investigated the anti-cancer effects of an ethanol extract of Oldenlandia diffusa (EOD) on HT-29 human adenocarcinoma cells. Methods: Cells were treated with different concentrations of an EOD, and cell death was assessed by using a 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay. Analyses of the sub G1 peak, the caspase-3 and -9 activities, and the mitochondrial membrane depolarizations were conducted to confirm cell death by apoptosis. Also, intracellular reactive oxygen species (ROS) generation was determined using carboxy-H2DCFDA (5-(and-6)-carboxy-20,70-dichlorodihydrofluorescein diacetate). Results: EOD inhibited the proliferation of HT-29 cells for 24 hours by $78.6%{\pm}8.1%$ at $50{\mu}g/mL$, $74.4%{\pm}4.6%$ at $100{\mu}g/mL$, $65.9%{\pm}5.2%$ at $200{\mu}g/mL$, $51.4%{\pm}6.2%$ at $300{\mu}g/mL$, and by $41.7%{\pm}8.9%$ at $400{\mu}g/mL$, and treatment for 72 hours reduced the proliferation at the corresponding concentrations by $43.3%{\pm}8.8%$, $24.3{\pm}5.1mV$, $13.5{\pm}3.2mV$, $6.5{\pm}2.3mV$, and by $2.6{\pm}2.3mV$. EOD increased the number of cells in the sub-G1 peak in a dose-dependent manner. The mitochondrial membrane depolarization was elevated by EOD. Also, caspase activities were dose-dependently elevated in the presence of EOD, and these activities were repressed by a pan-caspase inhibitor (zVAD-fmk). The ROS generation was significantly increased by EOD and N-acetyl-L-cysteine (NAC; a ROS scavenger) remarkably abolished EOD-induced cell death. In addition, a combination of sub-optimal doses of EOD and chemotherapeutic agents noticeably suppressed the growth of HT-29 cancer cells. Conclusion: These results indicate that EOD might be an effective chemotherapeutic for the treatment of human colorectal cancer.

Design and Implementation of Education On Demand System based on SIP to support Conferencing Service (컨퍼런싱형 서비스를 지원하는 SIP 기반의 원격 교육 시스템의 설계 및 구현)

  • Park, Si-Yong;Yun, Byung-Nam;Chung, Ki-Dong
    • The KIPS Transactions:PartA
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    • v.10A no.6
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    • pp.749-756
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    • 2003
  • Currently, The Internet has been imported in many fields and it's development prompted accordingly. The field of education also has been developed as 'Learners Centered Environment' by combining the existing educational method, so called distance learning, with internet. Learners have become able to adopt the appropriate level of educational service anywhere and anytime they want. In this paper, we propose a EOD system based on SIP. The EOD system is a new conferencing type system in the distance learning field. Using SIP (Session Initial Protocol) for EOD system is more efficient than using H.323, also the more the number of its is increased, and as improvement of its QoS. The EOD system is scalable and provides conferencing service using SIP which suits with web environment. And, the EOD system supports multicast efficiently to utilize bandwidth of networks.

Effects of Adding Essential Oil to the Diet of Weaned Pigs on Performance, Nutrient Utilization, Immune Response and Intestinal Health

  • Li, Pengfei;Piao, Xiangshu;Ru, Yingjun;Han, Xu;Xue, Lingfeng;Zhang, Hongyu
    • Asian-Australasian Journal of Animal Sciences
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    • v.25 no.11
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    • pp.1617-1626
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    • 2012
  • The objective of this study was to evaluate the effects of adding essential oils to the diet of weaned pigs on performance, nutrient utilization, immune response and intestinal health. A total of 96 weaning pigs ($8.37{\pm}1.58$ kg) were allotted to one of three dietary treatments. The treatments consisted of an unsupplemented basal diet (negative control, NC) or similar diets supplemented with 0.01% of an essential oil product which contained 18% thymol and cinnamaldehyde (EOD) as well as a diet supplemented with 0.19% of an antibiotic mixture which provided 150 ppm chlortetracycline, 80 ppm colistin sulfate and 50 ppm kitasamycin (positive control, PC). Each treatment was provided to eight pens of pigs with four pigs per pen. Over the entire 35 d experiment, ADG and fecal score were improved (p<0.05) for pigs fed the PC and EOD compared with the NC. Dry matter and crude protein digestibility as well as lymphocyte proliferation for pigs fed the PC and EOD diets were increased significantly compared with NC (p<0.05). IGF-I levels in plasma were significantly increased (p<0.05) in pigs fed the PC diet compared with pigs fed the NC diet. Interleukin-6 concentration was lower (p<0.05) and the tumor necrosis factor-${\alpha}$ level was higher (p<0.05) in the plasma of pigs fed the EOD diet than the NC diet. Plasma total antioxidant capacity level increased (p<0.05) in pigs fed the EOD diet compared with pigs fed the NC. Villus height to crypt depth ratio in the jejunum was greater (p<0.05) in pigs fed the PC and EOD diets than the NC. The numbers of E. coli in the cecum, colon and rectum were reduced (p<0.05) in pigs fed the PC and EOD diets compared with the control. In the colon, the ratio of Lactobacilli to E. coli was increased (p<0.05) in pigs fed the EOD diet compared with NC diet. Total aerobe numbers in the rectum were decreased (p<0.05) in pigs fed the PC and EOD diets compared with the control. Collectively, these results indicate that blends of essential oils could be a candidate for use as an alternative to traditional antibiotics in weaning pig diets.

Tele-Manipulation of ROBHAZ-DT2 for Hazard Environment Applications

  • Ryu, Dong-Seok;Lee, Jong-Wha;Yoon, Seong-Sik;Kang, Sung-Chul;Song, Jae-Bok;Kim, Mun-Sang
    • 제어로봇시스템학회:학술대회논문집
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    • 2003.10a
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    • pp.2051-2056
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    • 2003
  • In this paper, a tele-manipulation in explosive ordnance disposal(EOD) applications is discussed. The ROBHAZ-DT2 is developed as a teleoperated mobile manipulator for EOD. In general, it has been thought that the robot must have appropriate functions and accuracy enough to handle the complicated and dangerous mission. However, the research on the ROBHAZ-DT2 revealed that the teleoperation causes more restrictions and difficulties in EOD mission. Thus to solve the problem, a novel user interface for the ROBHAZ-DT2 is developed, in which the operator can interact with various human senses (i.e. visual, auditory and haptic sense). It enables an operator to control the ROBHAZ-DT2 simply and intuitively. A tele-manipulation control scheme for the ROBHAZ-DT2 is also proposed including compliance control via force feedback. It makes the robot adapt itself to circumstances, while the robot faithfully follows a command of the operator. This paper deals with a detailed description on the user interface and the tele-manipulation control for the ROBHAZ-DT2. An EOD demonstration is conducted to verify the validity of the proposed interface and the control scheme.

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Effects of Timings and Light Intensities of Supplemental Red Light on the Growth Characteristics of Cucumber and Tomato Plug Seedlings (적색광 처리시기 및 광도가 오이 및 토마토 플러그묘의 생장에 미치는 영향)

  • Zhang, Cheng-Hao;Chun, Ik-Jo;Park, Yong-Chul;Kim, Il-Seop
    • Journal of Bio-Environment Control
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    • v.12 no.4
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    • pp.173-179
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    • 2003
  • This study was established to control the overgrowth of cucumber and tomato plug seedlings by controlling of irradiation timings light intensities of red (R) light. Compared with the control, end-of-day (EOD) timing of R irradiation significantly reduced the seeding heights by 21.3% and 14.2% in cucumber and tomato, respectively. In addition, both plant seedlings treated with R light at EOD timing had the thickest stem diameter. Tomato seedlings treated with R light at EOD showed th highest chlorophyll content and the smallest leaf size. Dry weights of above ground plant tissue in both plant seedlings were significantly reduced by EOD R light treatment. And both plant seedlings treated with EOD treatment had the lowest T/R ratio, and the highest compactness rates. The increased intensities of R light resulted in the shorter plant heights in cucumber and tomato plant seedlings. It also reduced the length of hypocotyls and internodes and the size of leaves in the both seedlings. Elevated R light intensities tended to increase the stem diameter and chlorophyll contents. Dry weights of above ground plant tissue and roots in both plant seedlings were reduced by the elevated R irradiation. Cucumber seedlings treated with 2 and 8 $mol{\cdot}m^{-2}{\cdot}s^{-1}$ and tomato seedlings treated with 8 ${\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$ had significantly lower T/R ratio the other treatments tested.

Efficient Modifications of Cubic Convolution Interpolation Based on Even-Odd Decomposition (짝수 홀수 분해법에 기초한 CCI의 효율적인 변형)

  • Cho, Hyun-Ji;Yoo, Hoon
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.63 no.5
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    • pp.690-695
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    • 2014
  • This paper presents a modified CCI image interpolation method based on the even-odd decomposition (EOD). The CCI method is a well-known technique to interpolate images. Although the method provides better image quality than the linear interpolation, its complexity still is a problem. To remedy the problem, this paper introduces analysis on the EOD decomposition of CCI and then proposes a reduced CCI interpolation in terms of complexity, providing better image quality in terms of PSNR. To evaluate the proposed method, we conduct experiments and complexity comparison. The results indicate that our method do not only outperforms the existing methods by up to 43% in terms of MSE but also requires low-complexity with 37% less computing time than the CCI method.