• Title/Summary/Keyword: control suitability

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An experimental study on the improving reliability of grouting by using p-q-t chart analyzing technique (P-q-t chart 분석기법을 이용한 그라무팅 신뢰성 향상 방안에 관한 실험적 연구)

  • Chon, Byung-Sik;Choi, Dong-Chan;Kim, Jin-Chun
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.10 no.4
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    • pp.383-395
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    • 2008
  • The grouting is one of the improved techniques which is aim to decrease the permeability and to strengthen the soft ground. But The grouting method has many problems about a suitability of grouting procedure and an effectiveness of grouting after grouting work because of a technical characteristic operated inside the soil. The grouting $p{\sim}q{\sim}t$ chart of a typical index about grouting rate and time alteration of grouting pressure is one method to estimate the suitability of grouting factor with monitoring during grouting procedure. This study is automatic grouting system (AGS) which can control the testing and grouting procedures. It can make the detailed $p{\sim}q{\sim}t$ chart and analyze the grouting characters of the ground by comparing the detailed pattern of $p{\sim}q{\sim}t$ chart with standard pattern. If using the $p{\sim}q{\sim}t$ chart derived from AGS in the grouting work, it is an objective standard estimating the suitability of grouting factor with grouting materials, grouting method, grouting rate and grouting pressure, as results it expects successfully to improve reliability of the grouting work.

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A Method for Determining Face Recognition Suitability of Face Image (얼굴영상의 얼굴인식 적합성 판정 방법)

  • Lee, Seung Ho
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.11
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    • pp.295-302
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    • 2018
  • Face recognition (FR) has been widely used in various applications, such as smart surveillance systems, immigration control in airports, user authentication in smart devices, and so on. FR in well-controlled conditions has been extensively studied and is relatively mature. However, in unconstrained conditions, FR performance could degrade due to undesired characteristics of the input face image (such as irregular facial pose variations). To overcome this problem, this paper proposes a new method for determining if an input image is suitable for FR. In the proposed method, for an input face image, reconstruction error is computed by using a predefined set of reference face images. Then, suitability can be determined by comparing the reconstruction error with a threshold value. In order to reduce the effect of illumination changes on the determination of suitability, a preprocessing algorithm is applied to the input and reference face images before the reconstruction. Experimental results show that the proposed method is able to accurately discriminate non-frontal and/or incorrectly aligned face images from correctly aligned frontal face images. In addition, only 3 ms is required to process a face image of $64{\times}64$ pixels, which further demonstrates the efficiency of the proposed method.

Suitability of Various Domestic Wheats for Korean-Style Steamed Bread (한국형 찐빵 제조시 국내산 밀 품종의 적합성)

  • 김창순;황철명;김혁일;정동진;한재홍
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.30 no.6
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    • pp.1129-1136
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    • 2001
  • This study was to investigate the suitability of six domestic wheat cultivars for the Korean-style steamed bread made under optimal conditions. Six wheat flours milled from cultivars of Greu, Kumgang, Eunpa, Taptong Kobun, and Allgreu contained 13.8, 13.7, 13.7, 13.0, 11.7, 11.0% of protein. Control bread was made from blend (protein 10.5%) of 50% high strength and 50% low strength wheat flours milled from imported wheats. The volume of steamed bread made from Kumgang was highest followed by Eunpa, Tapdong, Kobun, Greu, control bread, Allgreu. Especially, the bread qualities of Kumgand and Kobun were superior to the control bread, showing better surface characteristics such as smoothness, glossiness, and whiteness, better shapes and desirable texture. Domestic wheat flours, having medium strength with high protein content above 13.0% were suitable for steamed bread except for Greu. Volumes of steamed bread made from domestic wheat flours were correlated with protein and ash content, flour color (L value), farinograph dough development time and stability, whereas spread ratio, total bread score and overall acceptability were correlated with farinograph dough stability It is concluded that flour quality is more important factor than protein content when domestic wheat flours are chosen for Korean-style steamed bread

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Cashew reject meal in diets of laying chickens: nutritional and economic suitability

  • Akande, Taiwo O;Akinwumi, Akinyinka O;Abegunde, Taye O
    • Journal of Animal Science and Technology
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    • v.57 no.5
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    • pp.17.1-17.6
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    • 2015
  • The present study investigated the nutritional and economic suitability of cashew reject meal (full fat and defatted) as replacement for groundnut cake (GNC) in the diets of laying chickens. A total of eighty four brown shavers at 25 weeks of age were randomly allotted into seven dietary treatments each containing 6 replicates of 2 birds each. The seven diets prepared included diet 1, a control with GNC at $220gkg^{-1}$ as main protein source in the diet. Diets 2, 3 and 4 consist of gradual replacement of GNC with defatted cashew reject meal (DCRM) at 50%, 75% and 100% on weight for weight basis respectively while diets 5, 6 and 7 consist of gradual inclusion of full fat cashew reject meal (FCRM) to replace 25%, 35% and 50% of GNC protein respectively. Each group was allotted a diet in a completely randomized design in a study that lasted eight weeks during which records of the chemical constituent of the test ingredients, performance characteristics, egg quality traits and economic indicators were measured. Results showed that the crude protein were 22.10 and 35.4% for FCRM and DCRM respectively. Gross energy of DCRM was 5035 kcal/kg compared to GNC, 4752 kcal/kg. Result of aflatoxin $B_1$ revealed moderate level between 10 and $17{\mu}g/Kg$ in DCRM and GNC samples respectively. Birds on control gained 10 g, while those on DCRM and FCRM gained about 35 g and 120 g respectively. Feed intake declined (P < 0.05) with increased level of FCRM. Hen day production was highest in birds fed DCRM, followed by control and lowest value (P < 0.05) was recorded for FCRM. No significant change (P > 0.05) was observed for egg weight and shell thickness. Fat deposition and cholesterol content increased (P > 0.05) with increasing level of FCRM. The cost of feed per kilogram decreased gradually with increased inclusion level of CRM. The prediction equation showed the relative worth of DCRM compared to GNC was 92.3% whereas the actual market price of GNC triples that of DCRM. It was recommended that GNC could be completely replaced by DCRM in layer's diets in regions where this by product is abundant. However, FCRM should be cautiously used in diets of laying chickens.

SDN-Based Hierarchical Agglomerative Clustering Algorithm for Interference Mitigation in Ultra-Dense Small Cell Networks

  • Yang, Guang;Cao, Yewen;Esmailpour, Amir;Wang, Deqiang
    • ETRI Journal
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    • v.40 no.2
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    • pp.227-236
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    • 2018
  • Ultra-dense small cell networks (UD-SCNs) have been identified as a promising scheme for next-generation wireless networks capable of meeting the ever-increasing demand for higher transmission rates and better quality of service. However, UD-SCNs will inevitably suffer from severe interference among the small cell base stations, which will lower their spectral efficiency. In this paper, we propose a software-defined networking (SDN)-based hierarchical agglomerative clustering (SDN-HAC) framework, which leverages SDN to centrally control all sub-channels in the network, and decides on cluster merging using a similarity criterion based on a suitability function. We evaluate the proposed algorithm through simulation. The obtained results show that the proposed algorithm performs well and improves system payoff by 18.19% and 436.34% when compared with the traditional network architecture algorithms and non-cooperative scenarios, respectively.

Design and Analysis of XML based Home Gateway using Power Line Carrier (Power Line Carrier를 이용한 XML 기반의 홈 게이트웨이 설계 및 분석)

  • Myoung, Kwan-Joo;Kim, Dong-Sung;Cho, Sung-Guk;Yun, Ji-Hun;Kwon, Wook-Hyun
    • Proceedings of the IEEK Conference
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    • 2000.11a
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    • pp.53-56
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    • 2000
  • In this paper, the architecture for the residential gateway is designed for the traffic statistics of home environment. The suitability of 10 Mbps power line communication is investigated for the control and the video data distribution through simulation. The design issues are discussed for a residential gateway and the network design that is based on the power line communication is presented. Traffic models are established from the actual traffic traces. They are used for performance evaluation of residential networks.

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A Pilot study of poroelastic modulus measurement in micro-bone tissue (미세 골조직의 공극탄성계수 측정을 위한 예비 연구)

  • 박영환;홍정화
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2004.10a
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    • pp.1038-1041
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    • 2004
  • In this study, developed a micro-level experimental setup to measure pore pressure and poroelastic modulus in various strain and strain rate about a stress in micro-structure of bone tissue. It is essential device in the development of the model to analysis the interstitial bone fluid flow of the lacuno-canalicular system to be known that would effect on the bone remodeling. The constitution of the experimental setup is as follows, microscopic image processing system; actuator control unit; load measurement system. A pilot study was used an artificial chemical wood to have similar poroelastic property of bone matrix and conducted to validate the suitability of the measurement system.

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Conformance Test Technique for the Electric Power IT Protocol based on TTCN-3 (TTCN-3를 이용한 전력 IT Protocol Conformance Test 기법)

  • Song, Byeong-Kwon;Jang, Yong-Gi;Jeong, Tae-Eui;Kim, Gun-Woong;Kim, Jin-Chul;Kim, Young-Eok
    • Proceedings of the KIEE Conference
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    • 2008.11a
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    • pp.373-375
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    • 2008
  • TTCN-3(Testing & Test Control Notation Version 3) defined in EISI(2001) are the standardized test specification and test implementation language of applicable for all kinds of black-box testing for reactive and distributed system, telecom systems, Mobile system, Internet, CORBA based system, java, XML, etc. This paper using the TTCN-3 on an Electric Power IT Protocol DLMS(Device Language Message Specification) standards for the implementation of the device equipment test the suitability of the protocol.

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Some Considerations on the P.I.D. type Autopilot (P.I.D.형 바동조타장치에 대한 약간의 고찰)

  • 이철영;김시화;김환수
    • Journal of the Korean Institute of Navigation
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    • v.9 no.2
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    • pp.13-26
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    • 1985
  • The purpsoe of automatic steering system is to keep the ship's course stable with the minimum course error and rudder angle, and there have been a number of studies as to the optimal design and adjustment of the autopilot. Recently, modern control theories are being used widely in analyzing and designing the system. When a ship is at sea, autopilot installed on the ship plays an important role, particularly in the respect of economic aspects, that is, when the design and the adjustment of adjustable parameters are not conducted perfectly, the amount of loss in energy and the extension of sailing distance become large. Therefore the optimal design and adjustment of a autopilot are very important. Though P.I.D type autopilots are widely spread and generally used in modern ships, the suitability and the adjusting method are not clarified. In this paper the authors considered the stabilaity and the economical efficiency of the P.I.D. type autopilot and investigated various facts which should be considered at the time of designing and using the P.I.D. type autopilot through the digital computer simulation.

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A Study on the Simulation analysis and design concept of Exterior Lighting at the OOAgricultural& fishery Circulation Center (OO농수산물유통센타 경관조명 설계안 및 Simulation 분석 평가)

  • 차광석;신일섭
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2001.11a
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    • pp.31-34
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    • 2001
  • Changing to a 24-hour urbanistic life style, a night time activities constituted for a major portion. Important of a beautiful exterior lighting as well as safety, and security concerns become increasingly. However, the removal or control of the excessive lighting is considered more important then increasing the brightness of the lamps to achieve bother safety and security. Representing a cheerful and leisure environment from the exterior lighting can also harmonize two aspects of energy saving and sustaining green environment. Designing of exterior lighting at the OO Agricultural & Fishery Circulation center symbolizes the suitability, convenience and production. It's design and analysis represent the optimum urban night time environment.

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