• Title/Summary/Keyword: Design and Pilot Test

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Development of the First LNG Bunkering Barge System in Korea (한국 최초의 LNG벙커링 바지시스템 개발)

  • Jung, Dong-Ho;Oh, Seung-Hoon;Jung, Jae-Hwan;Hwang, Sung-Chul;Sung, Hong-Gun;Lee, Jae-Ik;Kim, Eun-Seok
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2018.11a
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    • pp.162-163
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    • 2018
  • This study introduces the R&D project of development of the 1st LNG bunkering barge in Korea. The Design and pilot test of Barge-To-Ship 500cbm LNG bunkering barge system for coastal trading LNG-fueled ship is proposed. The following technologies will be developed from the project ; Basic/Detail design and pilot test of LNG Bunkering barge system, Basic/Detail design and pilot test of LNG bunkering process system considering LNG loading/unloading, Basic/Detail design and pilot test of 500cbm LNG tank in type-C, Evaluation of bunkering performance according to conditions (environment, SIMOPs) by numerical simulation, Performance evaluation of bunkering barge, towed barge and Barge-To-Ship motion considering ocean environment load, and scenario in Barge-To-Ship LNG bunkering. This project will contribute expansion to LNG-fueled ship industry and pave the way to establish LNG bunkering hub port.

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A Study on the Variation of the Coefficient of Leachate as Final Cover Systems in the Landfill (폐기물 매립지의 최종복토 구조에 따른 침출계수 변화에 관한 연구)

  • 임은진;이재영;최상일
    • Journal of Soil and Groundwater Environment
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    • v.9 no.2
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    • pp.48-53
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    • 2004
  • This study is objected to estimate the variation of the coefficient of leachate according to designs in landfill cover systems. Design (a) is the unsanitary landfill cover system with 50 cm soil. But Design (b), (c) are sanitary cover systems which are composed of soil top layer, drainage layer, barrier liner(Design (b): Geomembrane(1.5 mm) and compacted clay liner(30 cm), Design (c) compacted clay liner(45 cm)), gas venting layer. Quantity of leachate estimates Rational Method generally and depend on the coefficient of leachate, on one of the factors in Rational Method largely. The coefficient of leachate is defined as the leachate production ratio result from incident precipitation. To estimate the variation of the coefficient of leachate, the authors use HELP(Hydrologic Evaluation of Landfill Performance) Simulation and Pilot Test. As a result of HELP Simulation, the coefficient of leachate is 0.36∼0.42 in Design (a) and 0.03∼0.15 in Design (b), (c) according to designs in landfill cover systems and quality of barrier liner placement. These numerical values are similar to 0.13 with the coefficient of leachate in Pilot Test.

Process Design and Performance Test of the SCR Pilot Plant (SCR Pilot Plant 성능실험 및 공정 설계)

  • Kim, Jeong-Il;Chang, In-Gab;Seon, Chil-Yeong;Moon, Kil-Ho
    • Clean Technology
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    • v.9 no.2
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    • pp.71-79
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    • 2003
  • The selective catalytic reduction (SCR) process is the most widely applied technology for the denitrification of coal-fired power plant flue gases due to its selectivity and high efficiency. In order to attain the optimum design of SCR process, it is required to consider various catalysis characteristics as well as various operating conditions. A systematic study to elucidate the effects of the design conditions(reaction temperature, $NH_3/NO$ mole ratio, space velocity and linear velocity) on the reduction of NOx using the SCR pilot plant with maximum flue gas flow rate of $1,000Nm^3/hr$ was carried out and employed to identify the optimum design parameters. Design approaches of SCR process with test results were also presented.

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The Development of the Engineering Leadership Program for Engineering Students

  • Kim, In-Sook
    • Journal of Engineering Education Research
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    • v.17 no.4
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    • pp.21-24
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    • 2014
  • The purpose of this study is to develop the engineering students leadership program and evaluate the pilot test. To this end, literature reviews covering various leadership programs were studied and a needs analysis survey was conducted. The needs analysis survey found that student subjects believe leadership to be an important quality, but that the current availability of leadership training programs is lacking. Furthermore, results of the study are as follows, with respective results listed in descending order. The majority of students selected on-line learning as their preferred training method, followed by blended learning and in-person learning. Students also indicated their preferred instructional method to be through on-line courses. Based on these results, a preliminary pilot program was experimentally launched for only 1 class's use. This process of the development for the Engineering Leadership Program consists of 4 stages. The first stage is a needs analysis survey, followed by the design of the program based on results from the needs analysis survey. Afterwards comes the development stage, followed by the implementation stage, comprised of two parts; the pilot test and the distribution. The final stage is the overall evaluation step. We are currently in the first step of the third stage (the pilot test) and only the overall evaluation stage remains. After the distribution, a follow-up study will be conducted to analyze the effectiveness of the implemented program.

Optimal Design and Development of a Rice Mill Pilot Plant by Computer Simulation (II) -Development and Performance Evaluation of a Rice Mill Pilot Plant- (컴퓨터 시뮬레이션에 의한 미곡 도정공장의 적정설계 및 개발(II) -미곡 도정시스템의 개발 및 성능평가-)

  • 정종훈;김보곤;최영수
    • Journal of Biosystems Engineering
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    • v.20 no.3
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    • pp.262-274
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    • 1995
  • A rice mill pilot plant was designed and developed in the basis of the simulation results on the mill plants. The performance of the developed rice mill plant was evaluated, and the simulation model on the mill system was validated with the experimental data in the mill plant. The results of this study were as followings : 1. A rice mill pilot plant with the capacity of 0.5 t/h was designed and developed. 2. The hulled ratio of the mill plant was 87.3%, and the milled rice recovery and the head rice recovery of the cleaned rice were 74% and 87% , respectively. The degree of milling of the cleaned rice was 10.6% with a high polish. The intensity of the cleaned rice appeared high compared with that of the milled rice in the analysis of whiteness test using an image processing system. 3. The bottleneck, processing time, and production amount of the developed mill system almost coincided with those of the simulation of the rice mill plant. The developed simulation model of the rice mill plant was proven to be applicable to the design of a rice mill plant through experiments.

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Effects of a Bilateral upper Limb Training Program Using a Visual Feedback Method on Individuals with Chronic Stroke: A Pilot Clinical Trial

  • Kang, Dongheon;Park, Jiyoung;Choi, Chisun;Eun, Seon-Deok
    • International Journal of Contents
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    • v.17 no.2
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    • pp.20-31
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    • 2021
  • This study aimed to pilot test a newly developed bilateral upper limb rehabilitation training program for improving the upper limb function of individuals with chronic stroke using a visual feedback method. The double-group pretest-posttest design pilot study included 10 individuals with chronic stroke (age >50 years). The intervention (four weekly meetings) consisted of five upper limb training protocols (wrist extension; forearm supination and pronation; elbow extension and shoulder flexion; weight-bearing shift; and shoulder, elbow, and wrist complex movements). Upper limb movement function recovery was assessed with the FuglMeyer Assessment of the Upper Extremity, the Wolf Motor Function Test, the Trunk Control Test, the modified Ashworth Scale, and the visual analog scale at baseline, immediately after, and four weeks after the intervention. The Fatigue Severity Scale was also employed. The Fugl-Meyer Assessment of the Upper Extremity and Wolf Motor Function Test showed significant improvement in upper limb motor function. The Trunk Control Test results increased slightly, and the modified Ashworth Scale decreased slightly, without statistical significance. The visual analog scale scores showed a significant decrease and the Fatigue Severity Scale scores were moderate or low. The bilateral upper limb training program using the visual feedback method could result in slight upper limb function improvements in individuals with chronic stroke.

BDM Rolling of Middle Sized H-beams from a Bloom (블룸을 이용한 중형 H 형강 BDM 압연 공정 연구)

  • Kim, J.M.;Kim, K.W.;Kim, B.M.
    • Transactions of Materials Processing
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    • v.25 no.1
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    • pp.43-48
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    • 2016
  • H-beams are generally produced by hot rolling composed of a Break Down Mill (BDM) and a Finishing Mill (FM). The goal of the current study was to develop BDM rolling of H300x300 beams from blooms slit from slabs. In order to manufacture H300x300 beams, the caliber design and the pass schedule of BDM rolling were proposed for a bloom instead of a beam blank. The proposed BDM caliber design and pass schedule were tested using FE-simulation and pilot tests. For the major shape dimensions, such as flange width, web height, web thickness, as well as BDM rolling loads, a comparative analysis between the FE-simulation and the pilot rolling tests was conducted. The results of FEM analysis and pilot rolling tests showed good consistency. Moreover, BDM rolling loads were predicted to be in the range of allowable rolling loads. It was concluded that the designed BDM rolling is suitable for implementation within current manufacturing capacity.

Design and Performance Test of SCR Pilot Plant($1,000Nm^{3}/hr$) ($1,000Nm^{3}/hr$급 SCR Pilot Plant의 설계 및 성능실험)

  • Kim, J.I.;Chang, I.G.;Seon, C.Y.;Kim, J.S.;Chon, M.H.
    • Proceedings of the KSME Conference
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    • 2001.06d
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    • pp.979-984
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    • 2001
  • As a preceding process for developing design technology and establishing operation technology, the design procedure of the SCR(Selective Catalytic Reduction) pilot plant that can handle $1,000Nm^{3}/hr$ of flue gas was reported in this paper. And we also considered several factors that might cause abnormality of the plant in the designing process. The plant was designed and fabricated to test the $DeNO_{x}$ performances in variable operating conditions in the range of $3,000{\sim}36,000hr^{-1}/hr$ in space velocities, $1.67{\sim}6\;m/s$ in linear velocities, $200{\sim}500^{\circ}C$ temperatures, $300{\sim}1,000Nm^{3}/hr$ flow rates, and $0{\sim}1.4:1\;NH_{3}/NO$ ratios. In order to maintain the flow uniformity, the guide vanes and flow straightener were designed and constructed in the plant. The SCR pilot plant can be operated by the automatic control system, which enable to obtain performance data in real time and to set up the operating technology. The catalyst reactor consists of 4 catalyst layers and surface area of each layer can be adjusted to be of small size. Arrangement of catalysts per layer is $3{\times}6$ with the catalyst dimensions of $150{\times}150{\times}500mm(L{\times}W{\times}H)$.

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A Case Study Of Dynamic Compacted Rock Embankment Design Considering Long Term Behavior (장기침하를 고려한 고성토 암버력 동다짐 지반의 설계사례)

  • Bae, Kyung-Tae;An, Sang-Yik;Park, Yong-Man;Kim, Kang-Kyu;Kim, Hyung-Suk;Lee, Woo-Jin
    • Proceedings of the Korean Geotechical Society Conference
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    • 2009.09a
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    • pp.967-975
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    • 2009
  • In order to control differential settlement and to secure the safety of super structure on a high rock embankment the designed static compaction is changed with dynamic compaction and piled raft method. The parameters for dynamic compaction design are obtained from a pilot test. In addition, numerical analyses are also carried out to figure out the length and quantity of piled raft that can restraint the differential settlement within allowance range.

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The Development and Evaluation of an e-Learning Program for Novice Nurses before Beginning to Work in a Hospital Using KMS(Knowledge Management System) (지식경영 시스템을 활용한 신규간호사 e-Learning 프로그램 개발 및 평가)

  • Song, Young-Shin
    • The Journal of Korean Academic Society of Nursing Education
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    • v.13 no.1
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    • pp.82-89
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    • 2007
  • Purpose: The purpose of this study was to develop and evaluate an e-Learning Program designed to enhance novice nurses's performance ability Method: The e-Learning program was designed for novice nurses before beginning to work in a hospital using a KMS(Knowledge Management System). This study was carried out from February 2006 to April 2007. The program had progressive steps including design, pilot test & modification, contents development, program application and evaluation. After the program design and pilot testing, the learner's satisfaction was analyzed. Result: The program site is http://kms.emc.ac.kr titled, 'Cyber Education Center'. The sixteen part course has been developed as follows: blood sugar test, skin test, insulin test 1, insulin test 2, blood culture, blood sampling, heat therapy, cold therapy, glycerin enema, preparation of operation, oxygen therapy, suction technique, transfusion, foley catheterization and aseptic technique. The overall learner's satisfaction score was 4.08 out of 5 points. Conclusion: E-Learning could be useful for education and nursing work. This method may be effective for clinical nurses.

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