• Title/Summary/Keyword: external control

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Whistleblowing Intention: Theory of Planned Behavior Perspectives

  • WAHYUNI, Lili;CHARIRI, Anis;YUYETTA, Etna Afri
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.1
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    • pp.335-341
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    • 2021
  • This study aims to document empirically the individual factors that influence the intention to do whistleblowing. This study uses several variables, including internal locus of control, external locus of control, and whistleblowing intention. The use of the theory of Planned Behavior in this study is to explain and analyze the perception of behavior control as a determinant of whistleblowing intention. A quantitative research approach is used. The type of data in this study is primary data in the form of a questionnaire. The data collection method in this research is using the survey method. The sampling technique used a nonprobability sampling method, namely, the census method. The census method is the entire population sampled. The population in this study was all employees of the Pratama tax office in West Semarang. The research was conducted by distributing 111 questionnaires. Ninety-one valid questionnaires were returned appropriate for analysis. The data were processed using Partial Least Square-Structural Equation Modeling ((PLS-SEM) using the Warp PLS 7.0 program. WarpPLS 7.0 was used to test hypotheses and the relationship between variables. The study results showed that both internal locus of control and external locus of control affect whistleblowing intention.

The Effect of Distance of External Attentional Focus on the Performance of Balance Task in Upper Extremity

  • Roh, Jung-Suk
    • Physical Therapy Korea
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    • v.18 no.4
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    • pp.51-59
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    • 2011
  • The purpose of this study was to investigate the effect of attentional focus and distance of external focus on the performance of balance task of upper extremity. Subjects (N=30) held a stick (2 m) and maintained it horizontally. All of the subjects performed balance task of upper extremity under four different attentional focus conditions: focus on hand (internal focus), marker at 10 cm inside of hand (external focus 1), marker at 10 cm outside of hand (external focus 2), marker at 20 cm outside of hand (external focus 3). The mean velocity of the bar (mm/s) and the muscle activity of biceps brachii (%RVC) were measured. They were decreased when the subjects focused on external focuses compared to internal focus and decreased as distance of attentional focus from body increased (p<.05). There were significant differences between groups (p<.05); internal focus-external focus 1, internal focus-external focus 2, internal focus-external focus 3, external focus 2-external focus 3. These results showed that external focus is more effective than internal focus in enhancing motor performance and focusing on more distant attentional focus results in enhanced motor performance promoting the utilization of more automatic control mechanisms.

A Study on the Lighting Control System using Fuzzy Control System and RGB Modules in the Ship's Indoor (퍼지 제어 시스템과 RGB LED 모듈을 이용한 선박 실내용 조명 제어 시스템에 관한 연구)

  • Nam, Young-Cheol;Lee, Sang-Bae
    • Journal of Navigation and Port Research
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    • v.42 no.6
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    • pp.421-426
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    • 2018
  • With regard to LED lighting devices which have currently been commercialized, LED operating sequences are being sold in a fixed state. In such a state, the external environmental factors are not taken into consideration as only the illumination environment application is considered. Currently, it is difficult to create an optimal lighting environment which can adapt to changes in external environmental factors in the ship. Therefore, it was concluded that there is a need to input the external environment value so that the optimal illumination value can be reflected in real time in order to adapt more organically and actively to the change of external environmental factors. In this paper, we used a microprocessor as an integrated management system for environmental data that changes in real time according to existing external environmental factors. In addition, a controller capable of lighting control of RGB LED module by combining fuzzy inference system. For this, a fuzzy control algorithm is designed and a fuzzy control system is constructed. The distance and the illuminance value from the external environment element are input to the sensor, and these values are converted to the optimum illumination value through the fuzzy control algorithm, and are expressed through the dimming control of the RGB LED module and the practical effectiveness of the fuzzy control system is confirmed.

SYNCHRONIZATION OF UNIDIRECTIONAL RING STRUCTURED IDENTICAL FITZHUGH-NAGUMO NETWORK UNDER IONIC AND EXTERNAL ELECTRICAL STIMULATIONS

  • Ibrahim, Malik Muhammad;Jung, Il Hyo
    • East Asian mathematical journal
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    • v.36 no.5
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    • pp.547-554
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    • 2020
  • Synchronization of unidirectional identical FitzHugh-Nagumo systems coupled in a ring structure under ionic and external electrical stimulations is investigated. In this network, each neuron is only connected and transmit signals to its next neuron via synaptic strength called gapjunctions. Adaptive control theory and Lyapunov stability theory are used to propose a unique control scheme with necessary and sufficient conditions which guarantee the synchronization of the neuronal network. Finally, the effectiveness of the proposed scheme is shown through numerical simulations.

Iterative Learning Control Algorithm for a class of Nonlinear System with External Inputs (외부입력이 존재하는 비선형 시스템의 반복학습제어 알고리즘에 관한 연구)

  • Jang, H.S.;Lim, M.S.;Lim, J.H.
    • Proceedings of the KIEE Conference
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    • 1996.07b
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    • pp.1278-1280
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    • 1996
  • In this paper, an Iterative learning control algorithm is presented for a class of non linear system which have external inputs or disturbances. The acceleration of error signal is used to update the next control signal. It is shown that the feedback gain can be deter.ined so that the overall errors are convergent.

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Improving Flexibility of External Data Exchange in Count-fire Operation System by Adapting Dynamic Parser Software (동적 구문처리기 소프트웨어 적용을 통한 대화력전 수행체계 연동의 유연성 향상 방안)

  • Hong, Won-Eui
    • Journal of the Korea Institute of Military Science and Technology
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    • v.11 no.1
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    • pp.51-56
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    • 2008
  • The counter-fire operation system performs its mission exchanging information with other related systems such as command & control systems and military information systems. In the process of exchanging information, the counter-fire operation system uses a type of data message which contains exchange data information in the format of KMTF. The requirement of data exchange of count-fire operation will continue to evolve. But the EDX(External Data eXchange) configuration item of the current counter-fire operation system can not effectively cope with the variation of data exchange requirements due to its fixed software structure. In the paper, a solution for improving flexibility of external data exchange in counter-fire operation system is proposed.

Modeling and Identification of Human Mind using a Robot Which Walks Together

  • Kwon, Oh-Kyu;Park, Poo-Gyeon
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.161.2-161
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    • 2001
  • To achieve a cooperative work between human and robot, it is thought helpful to estimate the states of human mind, which originates his behavior. In this paper, human mind was considered to modify instinctive desires according to the conditions of external world surrounding the instinct. A simple human mind model was designed so that it finds a balance between instinctive desire and restriction from the external world. The external world is divided into three sub-worlds like subject´s whole body, its partner and concerned periphery. Proposed mind model has three-layers construction. Each of the layer tries to find a balance between desire and restriction from external world. In each layer, the role of finding the balance was expressed by an identical optimal control minimizing a performance index function of quadratic form with a weight factor, which is rearranged and named ...

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Design of Miniaturized Telemetry Module for Bi-Directional Wireless Endoscopy

  • Park, H. J.;H. W. Nam;B. S. Song;J. H. Cho
    • Proceedings of the IEEK Conference
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    • 2002.07a
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    • pp.494-496
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    • 2002
  • A bi-directional and multi-channel wireless telemetry capsule, 11mm in diameter, is presented that can transmit video images from inside the human body and receive a control signal from an external control unit. The proposed telemetry capsule includes transmitting and receiving antennas, a demodulator, decoder, four LEDs, and CMOS image sensor, along with their driving circuits. The receiver demodulates the received signal radiated from the external control unit. Next, the decoder receives the stream of control signals and interprets five of the binary digits as an address code. Thereafter, the remaining signal is interpreted as four bits of binary data. Consequently, the proposed telemetry module can demodulate external signals so as to control the behavior of the camera and four LEDs during the transmission of video images. The proposed telemetry capsule can simultaneously transmit a video signal and receive a control signal determining the behavior of the capsule itself. As a result, the total power consumption of the telemetry capsule can be reduced by turning off the camera power during dead time and separately controlling the LEDs for proper illumination of the intestine.

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Predictive Spacecraft Attitude Control under External Disturbances

  • Sam, Myung-Hyun;Suk, Oh-Choong;Choong, Bang-Hyo;Jea, Tahk-Min
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.62.3-62
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    • 2001
  • The predictive control is one of the nonlinear three-axis rotation methods. The desired trace of a satellite is pre-determined, and the control inputs are designed so that the satellite follows the ´predictive´ trace. The predictive control has been adapted to the research for the three-axis attitude control. In that case, the control variables are the quaternion represented the angular rates and attitude angles of the body about the three-axes. The objective of this paper is to propose to design a predictive controller for the three-axis attitude control under external disturbances. In order to do that, this paper proposes how to construct a predictive control law including disturbances and to discern them. The basic algorithm of the existent predictive control is partially modified, and the presumption and modeling of disturbances are performed ...

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Position Control of an AC Servo Motor Using Sliding Mode Controller with Disturbance Estimator

  • Jung-Woo;Seung-Bok;Hyun-Jeong;Joon-Ho
    • International Journal of Precision Engineering and Manufacturing
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    • v.5 no.4
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    • pp.14-20
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    • 2004
  • In this work, a new control methodology to achieve accurate position control of an AC servo motor subjected to external disturbance is proposed. Unlike conventional sliding mode controller which requires a prior knowledge of the upper bound of external disturbance, the proposed technique, called sliding mode controller with disturbance estimator (SMCDE), can offer robust control performances without a prior knowledge of the disturbance bound. The SMCDE is featured by an integrated average value of the imposed disturbance over a certain sampling period. By doing this, undesirable chattering phenomenon in the estimation process can be effectively alleviated. The benefits of the proposed control methodology are empirically demonstrated on AC servo motor and control responses are evaluated through a comparative work between the proposed and conventional control schemes.