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RISS 인기검색어
- 검색키워드
- 저자 : Kashaninia, Zahra (검색결과 3 건)
- 무료
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Abdorreza Kashaninia,Seyyed K. Y. Nikravesh 제어·로봇·시스템학회 2011 International Journal of Control, Automation, and Vol.9 No.6
In this paper, a new modular design technique for globally and practically adaptive output tracking of high-order lower-triangular nonlinear systems is proposed. This technique is not based on certainty equivalence principle and completely uses feedback domination method for these linearly pa-rameterized systems. Contrary to the methods based on adding a power integrator technique, for adaptive control of high-order lower-triangular nonlinear systems, in which the choice of a parameter update law is limited to a Lyapunov-type algorithm, the present method does not have this restriction and uses the swapping identifier as its parameter update law. The modularity of designing the controller and the identifier in this method, which relies on control design using feedback domination approach, is completely different from modular design in Immersion and invariance (I&I) based method, which relies on identifier design and desired features of parameter identification. Finally an example illustrates the feasibility and efficiency of the proposed method.
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Sanaati, Fateme,Najafi, Safa,Kashaninia, Zahra,Sadeghi, Masoud Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.8
Background: Chemotherapy-induced nausea and vomiting (CINV) places a significant burden on the patient. Herbal agents are the most commonly complementary therapies used among the public. This study was done to determine the effect of ginger and chamomile capsules on nausea and vomiting in cases undergoing chemotherapy for breast cancer (BC). Materials and Methods: In a randomized, double-blind and clinical trial study, 65 women with BC undergoing chemotherapy were referred to Breast Cancer Research Center, Tehran, Iran, between May 2013 to June 2014. Regimen for ginger group for 5 days before and 5 days after chemotherapy was: 2 times a day and 500 mg capsules of powdered ginger root in addition to a routine antiemetic regimen consisting of dexamethasone, metoclopramide and aprepitant (DMA) capsules. Chamomile group similarly was: 2 times a day and 500 mg capsules of Matricaria chamomilla extract in addition to a routine antiemetic regimen consisting of DMA capsules. Control group, routine antiemetic regimen consisting of DMA capsules. Results: There were no significant differences between the ginger, chamomile and control groups regarding age. Drugs used for chemotherapy were identical and duration of disease was also matched (1-4 months). Ginger and chamomile were both significantly effective for reducing the frequency of vomiting, there being no significant difference between the ginger and chamomile groups. Moreover, unlike the chamomile, ginger significantly influenced the frequency of nausea. Conclusions: According to the findings of this study, it should be declared that taking ginger capsules (1 g/day) might relieve CINV safely. Nurses dealing directly with cancer patients should be responsible for providing educational programs for patients and their families about how to deal with their drug regimens and associated side effects.
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Coordination of Active Front Steering and Direct Yaw Control Systems Using MIMO Sliding Mode Control
Ebrahim Muhammad,Ahmad Reza Vali,Abdorreza Kashaninia,Vahid Behnamgol 제어·로봇·시스템학회 2024 International Journal of Control, Automation, and Vol.22 No.1
This paper investigates an integrated multi-input multi-output (MIMO) sliding mode control strategy to coordinate the active front steering (AFS) and direct yaw control (DYC) system of a vehicle. The proposed control method aims to enhance the lateral dynamics of the vehicle, especially in the presence of tire-road friction coefficient variations as parameter uncertainties. The proposed integrated control strategy consists of two control layers. The upper layer coordinates the AFS and DYC systems and produces the corrective yaw moment and additive front steering angle. At the lower layer, the slip controller based on sliding mode control (SMC) converts the yaw moment into the desired longitudinal slip and generates the final distributed braking torques. Simulations of two scenarios in various road conditions were conducted to ensure that the proposed control is robust against road condition changes in the proposed method. Results from the simulation during the J-turn maneuver on the slippery road compared the performance of the suggested sliding mode integrated controller with an adaptive integrated controller. The simulation results showed that the proposed control system improved the stability and handling of the system’s tracking performance in various maneuvers.
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