• Title/Summary/Keyword: MDB

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Effect of Replacing Wheat or Maize with Micronized Barley on Starter, Grower and Finisher Pig Performance

  • Yin, Y.-L.;Baidoo, S.-K.;Boychuk, L.-L.
    • Asian-Australasian Journal of Animal Sciences
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    • v.14 no.5
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    • pp.668-676
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    • 2001
  • Two growth performance experiments were undertaken in order to compare the nutritional benefit of micronized dehulled barley (MDB) with wheat and maize. In the first experiment, ninety-six 24 d old Cotswold pigs with an average body weight of 9.5 kg were randomly allotted into one of four dietary treatments. The wheat and MDB ratio in the four complex diets were 100% wheat, 75% wheat+25% MDB, 50% wheat+50% MDB and 100% MDB; cereal was about 47% of the whole diet and varied by using different ratios of wheat and MDB. Starter phase was started at a bodyweight 9.9 kg; grower phase continued at liveweight 37.1 kg and finished at 74.0 kg. The ADFI, ADG and feed efficiency (F/G) were not affected (p>0.05) by the level of MDB in the diet from 9.9 to 37.1 kg live weight. However, ADFI was (p<0.05) less (14%) for the pigs fed the 75 or 100% of MDB based diets without affecting F/G during the second phase (37.1 to 74.0 kg live weight). Pigs fed the MDB based diet had a lower (p<0.05) plasma urea nitrogen (PUN) concentration than the pigs fed the wheat-based diet. In the second experiment, the trial started at 9.9 kg body weight and ended at market weight (107.6 kg), with three different phases in the trial. One hundred and twenty Cotswold pigs were randomly assigned to one of three dietary treatments. The maize and MDB ratio in the three diets were 100% maize, 50% maize+50% MDB and 100% MDB. Diet treatments did not affect (p>0.05) growth performance, PUN level, carcass characteristics and organ size, except for an improvement (p<0.05) in ADG for the pigs in the starter phase fed 50% and 100% MDB based diets.

Design, Implementation, and Performance Evaluation of an Embedded RDBMS Miracle (Miracle 임베디드 RDBMS 설계, 구현 및 성능 평가)

  • Seo, Nam-Won;Kim, Keong-Yul;Kim, Su-Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.7
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    • pp.3227-3235
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    • 2011
  • In this paper, a relational embedded DBMS was designed and a prototype 'Miracle' RDBMS (MDB) was developed. MDB is written in C and works on Unix, Linux and Windows platforms locally. It accesses database through SQL interfaces and API functions and uses $B^+$ tree index. It guarantees ACID in transactions and supports low concurrency control and processes SQL statements on a single table. To evaluate the performance of MDB on an ARM board EZ-S3C6410 and to compare the performance of MDB with that of SQLite, an experiment was carried out to estimate processing times for insertion, selection, update and deletion operations. The result shows that the average times for selections and insertions in MDB were 38.46% and 22.86% faster than those in SQLite, respectively, but the average times for updates and deletions in SQLite were 28.33% and 26.00% faster than MDB, respectively, This experiment shows that fetching data from database and sending data to database in MDB is faster than in SQLite, but $B^+$ tree index is implemented more effectively in SQlite than in MDB.

The Study on control factor of WorldSID 50%ile dummy injury through AE-MDB side crash test (AE-MDB 측면 충돌 시험 시 WorldSID 50%ile dummy 상해치에 대한 제어인자 연구)

  • Hongyul Sun;Pyokyong Han;Jaesu Kim;Kiseok Kim;Ilsung Yoon
    • Journal of Auto-vehicle Safety Association
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    • v.6 no.1
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    • pp.5-9
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    • 2014
  • Over the past ten years, since the introduction of the side crash test regulation in Europe, much research work has been performed internationally to develop new and modified test procedures to improve the level of occupant protection offered by vehicles in side crash test. This research has been co-ordinated and finally contributed to development of an AE-MDB(Advanced European Moving Deformable Barrier) and WorldSID (Worldwide Side Impact Dummy). EuroNCAP(European New Car Assessment Program) has the plan to conduct AE-MDB side crash test using WorldSID from 2015 by replacing Progressive MDB and EuroSID II. Automobile manufacturers need to respond to these changes closely. This paper is to find dominant control factor and analyze it of WorldSID 50%ile dummy injury through AE-MDB side crash test by predicting best and worst condition. And control factors will be validated within EuroNCAP regulations. This paper is analyzed by DFSS(Design for six sigma) which contains 5 control factors and is evaluated by ANOVA with the data as a result of LS-DYNA analysis correlated with crash pulse from 50 kph AE-MDB side crash test using WorldSID 50%ile dummy.

The Study on influence of test factors for WorldSID injury through AE-MDB side crash test (AE-MDB시험 시 인체모형 상해치에 대한 시험 인자 영향성 연구)

  • Sun, Hongyul;Han, Pyokyong;Oh, Eunkyung;Yoon, Ilsung
    • Journal of Auto-vehicle Safety Association
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    • v.7 no.1
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    • pp.7-12
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    • 2015
  • NCAP(New Car Assessment Program) makes vehicle manufacturer improve safety performance through free competition and customers guarantee vehicle selection by providing information of vehicle safety. That's why it is important not only to meet the regulation, but also to cope with NCAP. EuroNCAP(European New Car Assessment Program) side tests have conducted by using Progressive MDB and Euro SID II in order to reproduce crash test between two vehicles over 10 years. However various researches report that Progressive MDB and Euro SID II do not reflect evolving vehicle design, impact performance and biofidelity of human. Therefore EuroNCAP has the plan to conduct AE-MDB side crash test using WorldSID which is more evolved from 2015 by replacing Progressive MDB and EuroSID II. Automobile manufacturers need to develop safety performance for new test closely. This paper is to find test set-up parameters which affect into dummy injury instead of restraint system and to research on its tendency. It is processed with mini and small car to know influence as changing vehicle size and also analyzed by DFSS(Design for six sigma) which is one of optimization tools. DFSS is vaildated by simulating CAE with L18 orthogonal array of 6 control factors adjustable as EuroNCAP requirement.

Characteristics of Vehicle Structure Deformation and Body Injury caused by Side Impact Test using AE-MDB (AE-MDB 시험결과에 따른 인체상해 및 차체 특성)

  • Kim, Doyup;Lee, Jaewan;Chang, Hyungjin;Yong, Boojoong
    • Journal of Auto-vehicle Safety Association
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    • v.3 no.2
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    • pp.34-41
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    • 2011
  • Side collisions (or side crash) account for 51.6% of all car to car accidents occurred in 2010. It is necessary to analyze those vehicles' structure deformation and passengers' injuries in the side collisions. A moving barrier (950kg) is currently used in the KNCAP side impact test. However, in order to enhance a passengers' safety in the side collisions, we introduce an AE-MDB (1500kg) which provides more severe conditions for this test. In this study, the test results using both barriers are compared and analyzed.

An Enhanced WLAN MAC Protocol for Directional Broadcast (지향성 브로드캐스트를 위한 무선 LAN MAC 프로토콜)

  • Cha, Woo-Suk;Cho, Gi-Hwan
    • Journal of KIISE:Information Networking
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    • v.33 no.1
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    • pp.16-27
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    • 2006
  • The wireless transmission medium inherently broadcasts a signal to all neighbor nodes in the transmission range. Existing asynchronous MAC protocols do not provide a concrete solution for reliable broadcast in link layer. This mainly comes from that an omni-directional broadcasting causes to reduce the network performance due to the explosive collisions and contentions. This paper proposes a reliable broadcast protocol in link taller based on directional antennas, named MDB(MAC protocol for Directional Broadcasting). This protocol makes use of DAST(Directional Antennas Statement Table) information and D-MACA(Directional Multiple Access and Collision Avoidance) scheme through 4-way handshake to resolve the many collision problem wit]1 omni-directional antenna. To analyze its performance, MDB protocol is compared with IEEE 802.11 DCF protocol [9] and the protocol 2 of reference [3], in terms of the success rate of broadcast and the collision rate. As a result of performance analysis through simulation, it was confirmed that the collision rate of the MDB protocol is lower than those of IEEE 802.11 and the protocol 2 of reference [3], and that the completion rate of broadcast of MDB protocol is higher than those of IEEE 802.11 and the protocol 2 of reference [3].

A Study on Myanmar Power Marker for Korean Firms - Focused on CHP, CDM, MDB - (한국기업의 미얀마 전력시장 진출 방안에 관한 연구 - CHP, CDM, MDB를 중심으로 -)

  • Yu, Cheon;Hwang, Yun-Seop
    • International Area Studies Review
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    • v.20 no.4
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    • pp.37-56
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    • 2016
  • The purpose of this research is to present the implication for Korean firms' entry into the power market in Myanmar. This study investigated the characteristics of the Myanmar power market and analyzed SWOT, focusing on energy policy, power supply and demand, energy relations with neighboring countries and climate change issue. Opportunity factors are changes in energy strategies, the launch of an energy integration organization, changes in the power energy portfolio, rapid economic and power demand growth, and a clean development mechanism. The threats are high nonfulfillment of a contract, high power loss rates and low electricity distribution rates, increased energy exports to neighboring countries, and vulnerability to climate change. We suggest the use of CHP (Combined Heat and Power), Clean Development Mechanism (CDM), and Multilateral Development Bank (MDB).

Statistical Review for New USNCAP Side Crash Test Results (새로운 미국 측면 신차안전도평가 결과에 대한 통계적 분석)

  • Beom, Hyenkyun
    • Transactions of the Korean Society of Automotive Engineers
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    • v.21 no.2
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    • pp.104-113
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    • 2013
  • New USNCAP has been carried out by NHTSA including front and side crash from MY2011. In this paper, test results for USNCAP Side crash were reviewed by statistical analysis. This review focused on side crash test results to investigate the effect of changes from new USNCAP side crash test protocol among 30 passenger cars. These results were summarized as followings. Total number of 5 star vehicles on the front seat dummy (16 vehicles, 53.3%) was slightly smaller than the rear seat's (17 vehicles, 56.7%) in MDB test. For the ES-2re dummy, chest injury, ie maximum rib deflection contributed to 66% in the mean value of $P_{joint}$. Pelvis injury was highly dependent upon performance up to 87% in the SID-IIs dummy cited on the rear seat in average $P_{joint}$. For Pole test, pelvis injury made contribution to the average performance to 83%. For standard deviation, it showed the largest value in the same body region as the mean value for each dummy. Overall front seat performance showed 14 vehicles, 44.6% with 5 star vehicles less than each MDB or Pole test result. This result showed that performances in MDB test were different pattern to Pole test on driver position. Number of 5star vehicles for overall side NCAP performance are 18 passenger cars (60%). Curtain airbag and driver thorax airbag were equipped in all test vehicles. One vehicle is equipped with thorax airbag in the rear seat. Results from two side tests considered as reliability problem, ie the cause for large standard deviation in side crash test. Consequently, the countermeasure for new USNCAP side crash test is essential to design the effective side structures for side collision and to control well dummy kinematics with curtain and thorax airbag in order to reduce chest and pelvis injuries.

A Study on the Glucose-regulating Enzymes and Antioxidant Activities of Water Extracts from Medicinal Herbs (한약재의 물 추출물이 당대사 관련 효소와 항산화 활성에 관한 연구)

  • Choe, Myeon;Kim, Dae-Jung;Lee, Hyeon-Ju;You, Jin-Kyoun;Seo, Dong-Joo;Lee, Joon-Hee;Chung, Mi-Ja
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.37 no.5
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    • pp.542-547
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    • 2008
  • The anti-diabetic effects of water extracts (WE) from medicinal herbs on hepatic glucose-regulating enzymes, such as glucokinase (GCK), pyruvate dehydrogenase (PDH), acetyl-CoA carboxylase (ACC) and ${\alpha}$-glucosidase, were studied using the cytosol fraction in liver and mitochondia fraction in heart of a type II diabetic animal (GK rat, Goto-Kakizaki). The free radical scavenging activity of water extracts by DPPH method was also tested. We found that free radical scavenging activity was strong in Corni fructu (CF), Mokdan Bark (MDB), Chenhwabon (CHB) and Sanyack (SY), while that of Backbocreng (BBR), Shuckgihwang (SGH) and Taecsa (TS) was lower. For GCK activity in cytosol of liver, CF and CHB had a more effective activity than other extracts. PDH activity in mitochondria fraction of heart was higher in all of the extracts, expect for the TS extract, than in the control. ACC activity in cytosol fraction of liver was significantly higher in the CF, CHB, SGH, TS and SY extracts than in the control. CF, BBR and MDB led to a decrease in the ${\alpha}$-glucosidase activity. Therefore, these results suggest that all of the extracts may be used as functional material in the development as anti-diabetic functional food and medicine.