• Title/Summary/Keyword: Cane

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Effect of agglomerated zirconia-toughened mullite on the mechanical properties of giant cane fiber mat epoxy laminated composites

  • Sahu, Pruthwiraj;Parida, Sambit Kumar;Mantry, Sisir
    • Structural Engineering and Mechanics
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    • v.70 no.2
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    • pp.233-243
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    • 2019
  • This paper depicts the development and characterizations of laminated composites made with cellulosic giant cane (Arundinaria gigantea) fiber mats and epoxy resin. Zirconia-toughened mullite (ZTM) is used as a filler material in the laminated composite which was prepared from sillimanite through plasma processing technique. The mechanical characterizations of this composite have been carried out as per ASTM standards to evaluate its usability as a structural material. The effects of varying weight percentages of the filler and two different fiber orientations namely, angle-ply [$+45^{\circ}/-45^{\circ}/+45^{\circ}$] and balanced cross-ply [$0^{\circ}/90^{\circ}/0^{\circ}$] on the physical and mechanical properties such as density, microhardness, impact strength, tensile strength and interlaminar shear strength of the layered composite specimens have been investigated. The study indicates that the inclusion of zirconia-toughened mullite in the composite laminate as filler improves its mechanical properties. Moreover, the use of giant cane fiber mat in the laminate is more eco-friendly than the synthetic fibers. This research also helps in generating additional data to enrich the repository of natural fiber reinforced laminated composites.

Influence of Varying Dry Matter and Molasses Levels on Berseem and Lucerne Silage Characteristics and Their In situ Digestion Kinetics in Nili Buffalo Bulls

  • Touqir, N.A.;Khan, M. Ajmal;Sarwar, M.;Nisa, M.;Lee, W.S.;Lee, H.J.;Kim, H.S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.20 no.6
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    • pp.887-893
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    • 2007
  • Influences of forage DM and addition of cane molasses on silage characteristics of berseem (Trifolium alexandrium) and lucerne (Medicago sativa) and their ruminal digestion kinetics in Nili buffaloes were studied. Berseem and lucerne fodders (at one tenth bloom) were ensiled with wheat straw in laboratory silos to achieve 20, 30, 40% forage DM and without wheat straw (control); each forage DM level was supplemented with 2, 4 and 6% of cane molasses at ensiling. The pH and lactic acid contents of berseem and lucerne silages were affected by both forage DM and addition of molasses. Dry matter, CP and true protein (TP) of berseem and lucerne silages were affected by forage DM at ensiling but were not affected by the addition of cane molasses. Higher DM, CP and TP losses were observed when berseem and lucerne fodders were ensiled either without wheat straw or with wheat straw to achieve 20% and 40% forage DM at ensiling compared with 30% DM at ensiling. Fiber fractions (NDF, ADF, hemicellulose and cellulose) of berseem silage and lucerne silage were significantly increased with increasing forage DM at ensiling. Addition of cane molasses did not affect the DM, CP, TP and fiber fractions of both berseem and lucerne silages. Berseem and lucerne ensiled at 30% DM with 2% cane molasses were screened for comparative ruminal digestion kinetics with their respective fodders. Addition of wheat straw to berseem or lucerne fodder at ensiling depressed DM and NDF ruminal degradability. However, ruminal lag time, rate of degradation and extent of digestion of silages were similar to their respective fodders. In conclusion, berseem and lucerne could be ensiled with wheat straw to increase their DM to 30% along with 2% molasses for buffaloes.

Design of CC2540-based Route Guidance System for Visually Impaired Person (CC2540을 이용한 시각장애인용 길안내 시스템 설계 및 구현)

  • Yoo, Hyun-Ho;Choi, Byung-Jae
    • IEMEK Journal of Embedded Systems and Applications
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    • v.11 no.1
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    • pp.47-56
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    • 2016
  • There are many assistive devices for the visually impaired. They are becoming smart. In this paper, we propose a device that help route guidance for a visually impaired person. It is composed of a smart phone, cane, and hands-free devices. The smart phone helps a route guidance. The cane detects an obstacle and transmits it to the hands-free device. The hands-free device communicates with a visually impaired person. We here present their architecture, signal flow, configuration, and their circuit diagrams.

A Human Robot Interactive System "RoJi"

  • Shim, In-Bo;Yoon, Joong-Sun
    • 제어로봇시스템학회:학술대회논문집
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    • 2003.10a
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    • pp.2670-2675
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    • 2003
  • A human-friendly interactive system, based on the harmonious symbiotic coexistence of human and robots, is explored. Based on interactive technology paradigm, a robotic cane is proposed for blind or visually impaired travelers to navigate safely and quickly among obstacles and other hazards faced by blind pedestrians. Robotic aids, such as robotic canes, require cooperation between humans and robots. Various methods for implementing the appropriate cooperative recognition, planning, and acting, have been investigated. The issues discussed include the interaction of human and robot, design issues of an interactive robotic cane, and behavior arbitration methodologies for navigation planning.

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Implementation of Smart Gloves for the Blind and Visually Impaired

  • Park, Myeong-Chul;Kim, Tae-Sun
    • Journal of the Korea Society of Computer and Information
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    • v.23 no.8
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    • pp.101-106
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    • 2018
  • Most people with visual impairments can not use both hands freely because they carry a cane. And unnecessary contact with people around you during walking can occur. Other guides include guide dogs, but the price and maintenance cost are expensive and difficult to manage. In this paper, we propose a smart glove, which prevents unnecessary contact when blind people use the cane, detects the obstacle ahead by using the ultrasonic sensor, and informs the presence of the obstacle by using the servo motor. In addition, the electrostatic proximity touch module on the fingers executes a specific application of the smart phone connected by Bluetooth when the finger touches each other. It is designed to allow you to use text or phone calls when you are lost or in an emergency. The results of this study will be used as a tool to provide a more convenient life for the visually impaired.

L-라이신 발효에 있어서 당밀전처리의 영향

  • Shin, Hyun-Chul;Kim, Seong-Jun;Sung, Jin-Suck;Jeon, Yeong-Joong;Lee, Jae-Heung
    • Microbiology and Biotechnology Letters
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    • v.24 no.3
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    • pp.376-379
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    • 1996
  • Cane molasses, the most widely used carbon source for the industrial fermentation of L-lysine, usually contains a high concentration of calcium ions which tend to cause scaling problem in the recovery process. To remove the calcium ions, cane molasses was pretrea ted with sulfuric acid by adjusting the pH to 2.5-3.5. When the pretreated solution was directly heat-sterilized and used in the fermentation, a significant reduction in L-lysine production was observed. In this paper, we proved that sucrose is a superior substrate for L-lysine fermentation to that of glucose or fructose and that the above-mentioned decrease of L-lysine production was caused by the hydrolysis of sucrose in the molasses when the molasses was heat-sterilized at a low pH. The problem was overcome by adjusting the pH of molasses to neutral before sterilization.

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Yeast Biomass Production from Concentrated Sugar Cane Stillage Using a Thermotolerant Candida rugosa

  • Lee, Ki-Young;Lee, Sung-Taek
    • Journal of Microbiology and Biotechnology
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    • v.5 no.2
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    • pp.114-116
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    • 1995
  • Concentrated Brazillian sugar cane stillage was used as a substrate for the yeast biomass production using Candida rugosa isolated from East Africa. At the optimum stillage concentration of 10% dry matter, biomass production was 20.4 g/l and COD reduction rate was 41%. The specific growth rate of the yeast was 0.17 $h^{-1}$ and the corresponding productivity 0.91 g $l{-1} h^{-1}$ in the batch fermentation was observed at $40{\circ}^C$.

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A study on walking aids for the blind (시각장애자의 보행지원에 관한 연구)

  • Ham, K.K.;Han, S.H.;Yang, S.Y.;Kim, H.G.;Huh, W.
    • Proceedings of the KOSOMBE Conference
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    • v.1997 no.05
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    • pp.131-135
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    • 1997
  • We implementated an ultrasonic wave cane for the blind. The cane detect walking obstacle and provide a walking direction. The cane used time of flight method of ultrasonic-wave for a measurement of obstacle distance and fluxgate geomagnetic sensor for guidance of walking direction. This system can detect an obstacle of upward, forward, downward and that warn to the blind with vibration, pitch sound. And the blind can know walking direction to voice output. As a result, the blind could efficiently avoid a exposed obstacle, obstacles beyond knee, an exposed street obstacle, a branch of tree person's height and it is usable search for surrounding land mark.

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Basic characteristics of wind-blown kiwifruit vines (키위나무의 바람에 대한 특성연구)

  • Kang, Jong-Hoon;Lee, Sang-Joon
    • 한국가시화정보학회:학술대회논문집
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    • 2007.11a
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    • pp.101-104
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    • 2007
  • Kiwifruit vines with broad leaves are easily torn or shed by high-speed wind. In this study, the threshold wind speed at which a cane is broken was investigated experimentally with varying physical parameters of a kiwifruit vine under two different ABL (atmospheric boundary layer) conditions. In addition, the temporal variation of wind-blown young canes was visualized using a high-speed camera. The average threshold wind speeds for ABL types A and B are about 20.5 m/s and 18.9 m/s, respectively. A wind-blown young cane takes periodic up-and-down motion when it is broken off. The mean motion frequency of young canes of the kiwifruit vines was found to be about 4.5Hz.

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A Human Robot Interactive System "RoJi"

  • Shim, Inbo;Yoon, Joongsun;Yoh, Myeungsook
    • International Journal of Control, Automation, and Systems
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    • v.2 no.3
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    • pp.398-405
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    • 2004
  • A human-friendly interactive system that is based on the harmonious symbiotic coexistence of humans and robots is explored. Based on the interactive technology paradigm, a robotic cane is proposed for blind or visually impaired pedestrians to navigate safely and quickly through obstacles and other hazards. Robotic aids, such as robotic canes, require cooperation between humans and robots. Various methods for implementing the appropriate cooperative recognition, planning, and acting, have been investigated. The issues discussed include the interaction between humans and robots, design issues of an interactive robotic cane, and behavior arbitration methodologies for navigation planning.