scholarly journals Design Procedure of Robust QFT-Based Controller for Continuous-Flow Grain Dryer Plant

2011 ◽  
Vol 328-330 ◽  
pp. 2318-2323
Author(s):  
H. Mansor ◽  
S.B. Mohd Noor ◽  
R.K. Raja Ahmad ◽  
F.S Taip
Keyword(s):  
Continuous Flow ◽  
Pid Controller ◽  
Design Procedure ◽  
Industrial Applications ◽  
Test Results ◽  
Robust Controller ◽  
Plant Uncertainty ◽  
Product Output ◽  
Better Than

Quantitative Feedback Theory (QFT) is a well known robust controller that deals with plant uncertainty. QFT has been applied to many industrial applications, however it never been applied to any types of grain dryer plant. Grain dryer plant prone to parameter uncertainty and needs a robust controller in order to maintain a good quality of product output. The objective of this paper is to explain step-by-step design procedure of QFT design for a continuous-flow grain dryer plant. The designed QFT-based controller is also tested and compared with PID controller via simulation. The test results showed that the QFT-based controller works better than PID controller in terms of shorter settling time and smaller percentage of overshoot for the grain dryer plant under study and at the same time insensitive to parameter changes i.e. input and output disturbances.

Implementasi Voip Server Berbasis IPV6 Dengan Raspberry PI

2019 ◽  
Vol 9 (01) ◽  
pp. 47-54
Author(s):  
Rabbai San Arif ◽  
Yuli Fitrisia ◽  
Agus Urip Ari Wibowo
Keyword(s):  
Internet Protocol ◽  
Wireless Transmission ◽  
Raspberry Pi ◽  
Test Results ◽  
Average Delay ◽  
Ipv6 Network ◽  
Ip Network ◽  
Selection Of ◽  
Better Than

Voice over Internet Protocol (VoIP) is a telecommunications technology that is able to pass the communication service in Internet Protocol networks so as to allow communicating between users in an IP network. However VoIP technology still has weakness in the Quality of Service (QoS). VOPI weaknesses is affected by the selection of the physical servers used. In this research, VoIP is configured on Linux operating system with Asterisk as VoIP application server and integrated on a Raspberry Pi by using wired and wireless network as the transmission medium. Because of depletion of IPv4 capacity that can be used on the network, it needs to be applied to VoIP system using the IPv6 network protocol with supports devices. The test results by using a wired transmission medium that has obtained are the average delay is 117.851 ms, jitter is 5.796 ms, packet loss is 0.38%, throughput is 962.861 kbps, 8.33% of CPU usage and 59.33% of memory usage. The analysis shows that the wired transmission media is better than the wireless transmission media and wireless-wired.

scholarly journals The Effectiveness of Acupuncture for Dysphagia after Stroke: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Lida Zhong ◽  
Jing Wang ◽  
Fang Li ◽  
Xiao Bao ◽  
Huiyu Liu ◽  
...  
Keyword(s):  
Systematic Review ◽  
Rating Scale ◽  
Meta Analysis ◽  
Control Group ◽  
Test Results ◽  
Evaluation Standards ◽  
Bias Risk ◽  
Swallowing Assessment ◽  
Better Than

Objectives. This study reviewed and evaluated existing evidence of the efficacy of acupuncture as a clinical treatment for dysphagia after stroke. Methods. Five English and four Chinese databases were searched from inception to March 2020. All randomized controlled trials (RCTs) incorporating acupuncture or acupuncture combined with other interventions for the treatment of dysphagia after stroke were enrolled. All data were independently assessed and extracted by two authors. The bias risk assessment recommended by the Cochrane Collaboration's tool was used to assess the quality of the selected studies. This meta-analysis was conducted by using RevMan 5.3. Pooled analyses were calculated by the mean difference (MD) and 95% confidence interval (CI). Heterogeneity was assessed by the I2 test. Results. Thirty-five studies involving 3024 patients were analyzed. The meta-analysis showed that the therapeutic efficacy of acupuncture combined with other interventions was better than that of the control group for the standardized swallowing assessment (SSA) score (MD = −3.78, 95% CI: −4.64 to −2.91, P < 0.00001 ), Ichiro Fujishima rating scale (IFRS) score (MD = 1.68, 95% CI: 1.16 to 2.20, P < 0.00001 ), videofluoroscopic swallowing study (VFSS) score (MD = 2.26, 95% CI: 1.77 to 2.74, P < 0.00001 ), and water swallowing test (WST) score (MD = −1.21, 95% CI: −1.85 to −0.57, P =   0.0002 ). In studies reporting adverse effects, no serious outcome from an adverse event was confirmed. Conclusion. This systematic review indicated that acupuncture could be an effective therapy for treating dysphagia after stroke although stricter evaluation standards and rigorously designed RCTs are needed.

scholarly journals PID Controller Gains Tuning Using Metaheuristic Optimization Methods: A survey

2020 ◽  
Vol 14 ◽  
Keyword(s):  
Pid Controller ◽  
Control Process ◽  
Optimization Methods ◽  
Industrial Applications ◽  
Pid Controllers ◽  
Pid Tuning ◽  
Metaheuristic Optimization ◽  
Pid Controller Tuning ◽  
Vital Component

In nowadays industry, most processes are controlled and automated. Interestingly, PID controllers are major contributors to the control process since they were invented and become quite practical. PID controllers are vital component in the industry and enhancing the component will show an echo effect in today’s technology. Their drawbacks are tuning them for an application, and this provides inspiration to develop advanced optimization methods in tuning PID controllers. This survey aims to review metaheuristic optimization methods of PID controller tuning that were published between 2010 and 2018. The paper was constructed based on 22 research papers and found that 8 metaheuristics optimization methods were used with PID tuning on 5 industrial applications. The papers also extensively provided answers to 3 research questions and assessing the quality of the papers based on 6 parameters.

scholarly journals Experiment of Pullout Expansion Anchor in Installation Cast in Place and Post Installed with Concrete Breakout Failure

2021 ◽  
Vol 23 (1) ◽  
pp. 37-45
Author(s):  
Amirul Huda ◽  
Henry Apriyatno
Keyword(s):  
Pullout Test ◽  
Test Results ◽  
Pullout Capacity ◽  
Concrete Compressive Strength ◽  
Strength Tests ◽  
Effective Depth ◽  
The Difference ◽  
Better Than ◽  
Ready Mix Concrete

Abstract: The use of anchors in construction is gaining popularity to connect steel and concrete constructions, and to transmit tensile loads acting onto the concrete. This research aims to find out the difference in the strength of anchor based on two methods of installations that are cast in place compared to post installed with the influence of effective depth, diameter of anchor and quality of concrete, and failure of concrete breakout. Expansion anchor used in this study is "Sanko" M12x100 and ready-mix concrete PT Bonindo Ungaran, fc 25 MPa with 6 pieces of test specimens of 300x300x150 mm. Each specimen has 4 anchors with a distance between the anchors of 100 cm, the distance between the anchors to the edge of the concrete 100 mm, and the depth of installation (hef) of 60 mm. The result of the study is the predicted value of the anchor pullout capacity with the failure of concrete breakout due to the theoretical pullout, namely 42,223 N, anchor pullout test results with cast in place method of 40,574 N and post installed method by 37,494 N. Tensile strength tests (material) of anchor (fy) 338 MPa, for flat concrete compressive strength strength of (f’c) 25,698 MPa. The results of the cast in place pullout test are larger and better than post installed (40574 N>37494 N). Failure that occurred in cast in place method is a failure of concrete breakout and post installed method has occurred slip. Failures that occur are relevant to the theory.

Analytical Investigation on the Current Quality of Safety Belts

2014 ◽  
Vol 526 ◽  
pp. 362-366 ◽  
Author(s):  
Jian Xiao Cao ◽  
Ye Cao ◽  
Jian Hua Fu ◽  
Jing Pei
Keyword(s):  
Analytical Investigation ◽  
Practical Significance ◽  
Test Results ◽  
Safety Belt ◽  
Spot Check ◽  
Standard Value ◽  
Testing Center ◽  
Safety Belts ◽  
Better Than

On the basis of two test results of safety belt from national spot check. This paper analyzes safety belt products in domestic market and data bases from each testing center. Searching and studying the existing problem with safety belt products. The results showed the quality of safety belt in market is good expecting two batches. And the test data is better than the standard value. This research has important practical significance on analysis of safety belt quality.

scholarly journals International normalized ratio (INR) testing in Europe: between-laboratory comparability of test results obtained by Quick and Owren reagents

2018 ◽  
Vol 56 (10) ◽  
pp. 1698-1703 ◽  
Author(s):  
Piet Meijer ◽  
Karin Kynde ◽  
Antonius M.H.P. van den Besselaar ◽  
Marjan Van Blerk ◽  
Timothy A.L. Woods
Keyword(s):  
Plasma Sample ◽  
International Normalized Ratio ◽  
Test Results ◽  
Local Calibration ◽  
The Mean ◽  
The Difference ◽  
Clinically Significant ◽  
Single Plasma ◽  
Better Than

Abstract Background: This study was designed to obtain an overview of the analytical quality of the prothrombin time, reported as international normalized ratio (INR) and to assess the variation of INR results between European laboratories, the difference between Quick-type and Owren-type methods and the effect of using local INR calibration or not. In addition, we assessed the variation in INR results obtained for a single donation in comparison with a pool of several plasmas. Methods: A set of four different lyophilized plasma samples were distributed via national EQA organizations to participating laboratories for INR measurement. Results: Between-laboratory variation was lower in the Owren group than in the Quick group (on average: 6.7% vs. 8.1%, respectively). Differences in the mean INR value between the Owren and Quick group were relatively small (<0.20 INR). Between-laboratory variation was lower after local INR calibration (CV: 6.7% vs. 8.6%). For laboratories performing local calibration, the between-laboratory variation was quite similar for the Owren and Quick group (on average: 6.5% and 6.7%, respectively). Clinically significant differences in INR results (difference in INR>0.5) were observed between different reagents. No systematic significant differences in the between-laboratory variation for a single-plasma sample and a pooled plasma sample were observed. Conclusions: The comparability for laboratories using local calibration of their thromboplastin reagent is better than for laboratories not performing local calibration. Implementing local calibration is strongly recommended for the measurement of INR.

scholarly journals Fuzzy Anti-Windup PID Controlled Induction Motor

2019 ◽  
Vol 9 (1) ◽  
pp. 184-189 ◽  
Keyword(s):  
Induction Motor ◽  
Pid Controller ◽  
Speed Control ◽  
Industrial Applications ◽  
Test Results ◽  
Motor Speed ◽  
Controller Performance ◽  
Integral Controller ◽  
Proportional Integral Controller ◽  
Speed Response

The Induction motor has been the centre of focus in many industrial applications. This is because the Induction motor has many advantages like high precision and high torque performance. The Induction motor speed control is very essential for various applications. Conventionally induction motor speed control was done using Proportional Integral controller. This project proposes the speed control of IM using Fuzzy- Anti Windup PID controller. Using this controller the saturation effect on the speed response of the Induction motor is reduced. A vector speed control Induction motor by Fuzzy-Anti Windup PID controller is simulated using MATLAB/ SIMULINK. The control system parameters of speed of the induction motor with PI controller, Anti Windup PID controller and the proposed controller are measured and compared. From the test results the Fuzzy-Anti Windup PID controller outperforms the other considered controller performance.

scholarly journals Modelling and Simulation of Stepper Motor For Position Control Using LabVIEW

1970 ◽  
Vol 5 (1.) ◽  
Author(s):  
Ahmet Mehmet Karadeniz ◽  
Malek Alkayyali ◽  
Péter Tamás Szemes
Keyword(s):  
Fuzzy Logic ◽  
Pid Controller ◽  
Fuzzy Logic Controller ◽  
Position Control ◽  
Bond Graph ◽  
Industrial Applications ◽  
Modelling And Simulation ◽  
Stepper Motor ◽  
Stepping Motor ◽  
Better Than

This paper presents hybrid stepper motor (is a type of stepping motor) modelling and simulation which is widely used a kind of motor in industrial applications. In this study, the stepper motor was modelled using bond graph technique and simulation for desired position was executed on LabVIEWgraphical interface. Then, firstly a convenient PID controller was designed for position, speed and current and PID close loopresponse was obtained for position control. Then, PID parameters for each controller were arranged separately to obtain good response Secondly, Fuzzy Logic controller applied to the system and its response was obtained. Finally, both responses are compared. According to comparison, it was observed that Fuzzy Logic controller’s response is better than PID’s. (In this paper, all shown responses were observed for 120 degree desired position)

KINERJA KEUANGAN BANK PERKREDITAN RAKYAT DAN BANK PEMBIAYAAN RAKYAT SYARIAH: STUDI KASUS DI DAERAH ISTIMEWA YOGYAKARTA

2017 ◽  
Vol 11 (1) ◽  
pp. 31
Author(s):  
Mona Iswandari ◽  
Edy Anan
Keyword(s):  
Financial Performance ◽  
T Test ◽  
Test Results ◽  
Significant Difference ◽  
Asset Quality ◽  
Better Than ◽  
Special Region

This study aimed to compare the financial performance of The Conventional Rural Bank (BPR) andIslamic Rural Bank (BPRS) in special region Yogyakarta region. The sample is gotten use purposivesampling method is choosing sample that has been fulfill inclusi citeria. Study sample is gotten 70with the case study in special region Yogyakarta region in period 2012-2014. Methods of dataanalysis using Independent Samples T-Test. Test results show that there is no significant differencewhen viewed from the ratio LDR/FDR between BPR and BPRS. Second, there is significant differencewhen viewed from the ratio ROA between BPR and BPRS. Third, there is significant difference whenviewed from the ratio ROE between BPR and BPRS. Fourth, there is significant difference whenviewed from the ratio NPL/NPF between BPR and BPRS. Generally, on the aspec of likuidity,rentibilty, capital ratio and the asset quality of the Conventional Rural Bank (BPR) showed thatfinancial performance is better than the IslamicRural Bank (BPRS).Keywords: Comparison financial performance, the Conventional Rural Bank (BPR), the IslamicRural Bank, Likuidity, Rentibility, Capital Ratio, Asset quality

Intelligent rail lubrication system based on fuzzy group analysis

2021 ◽  
Vol 40 (1) ◽  
pp. 1137-1146
Author(s):  
Xiangyang Lu ◽  
Hengyi Li ◽  
Xiaoquan Li ◽  
Juncai Xu
Keyword(s):  
Pid Controller ◽  
Group Analysis ◽  
Lateral Force ◽  
Critical Issue ◽  
Lubrication System ◽  
Test Results ◽  
Force Analysis ◽  
Fuzzy Group ◽  
Rail Lubrication

The security of a train becomes a more critical issue as the train’s speed and the complexity of the railway conditions increases. It is especially true when the train runs on a curved radius rail when the lateral force between the train and the rail is less stable. The rail’s side grinding is a significant problem that affects the train’s safety, especially when the train passes through small radial sections in mountainous areas. The intelligent rail lubrication system is critical to enhancing rails’ safety and efficiency and reducing grease pollution along rail lines. This system is modeled with a force analysis of train curve motion and numerical simulation of wear power. The lubrication system is constructed with hardware and software. Based on fuzzy group analysis, this system and the adaptive Proportional Integration Differential (PID) controller is presented to improve the lubricative effects. The system test results show that the quality of lubrication control using this system is efficacious; the control convergence is more reliable than the conventional PID controller.

Sign in / Sign up

Export Citation Format

Share Document