keyword
MENU ▼
Read by QxMD icon Read
search

Fuzzy logic

keyword
https://www.readbyqxmd.com/read/29111409/mulan-evaluation-and-ensemble-statistical-inference-for-functional-connectivity
#1
Huifang E Wang, Karl J Friston, Christian G Bénar, Marmaduke M Woodman, Patrick Chauvel, Viktor Jirsa, Christophe Bernard
Many analysis methods exist to extract graphs of functional connectivity from neuronal networks. Confidence in the results is limited because, (i) different methods give different results, (ii) parameter setting directly influences the final result, and (iii) systematic evaluation of the results is not always performed. Here, we introduce MULAN (MULtiple method ANalysis), which assumes an ensemble based approach combining multiple analysis methods and fuzzy logic to extract graphs with the most probable structure...
October 27, 2017: NeuroImage
https://www.readbyqxmd.com/read/29110111/forest-fire-risk-assessment-an-integrated-approach-based-on-multicriteria-evaluation
#2
Elham Goleiji, Seyed Mohsen Hosseini, Nematollah Khorasani, Seyed Masoud Monavari
The present study deals with application of the weighted linear combination method for zoning of forest fire risk in Dohezar and Sehezar region of Mazandaran province in northern Iran. In this study, the effective criteria for fires were identified by the Delphi method, and these included ecological and socioeconomic parameters. In this regard, the first step comprised of digital layers; the required data were provided from databases, related centers, and field data collected in the region. Then, the map of criteria was digitized in a geographic information system, and all criteria and indexes were normalized by fuzzy logic...
November 6, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29108458/a-fuzzy-logic-based-warning-system-for-patients-classification
#3
Jumanah A Al-Dmour, Assim Sagahyroon, A R Al-Ali, Salah Abusnana
Typically acute deterioration in sick people is preceded by subtle changes in the physiological parameters such as pulse and blood pressure. The Modified Early Warning Score is a scoring system developed to assist hospital staff in gauging these physiological changes and identifying patients in need of urgent medical care to avoid catastrophic deterioration. This work discusses the design and implementation of an equivalent warning system that utilizes fuzzy logic techniques to categorize patients' status. The system is implemented and tested in Rashid Centre for Diabetes and Research in UAE...
November 1, 2017: Health Informatics Journal
https://www.readbyqxmd.com/read/29103115/perspectives-on-impacts-of-water-quality-on-agriculture-and-community-well-being-a-key-informant-study-from-sri-lanka
#4
Bhadranie Thoradeniya, Uthpala Pinto, Basant Maheshwari
Integrated management of water quality is critical for sustaining food production and achieving overall well-being of a community. Further, understanding people's perceptions and engagement can play an important role in achieving water and food security. The main aim of this study was to investigate the perspectives of community and other stakeholders as to how water quality impacts on agriculture, livelihood and community well-being within rural farming communities of two dry zone districts of Sri Lanka. The study adopted 'key informant interviews' as the methodology to investigate community and other stakeholder perspectives to collect primary data over a period of four months...
November 4, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29072595/soft-sensing-of-non-newtonian-fluid-flow-in-open-venturi-channel-using-an-array-of-ultrasonic-level-sensors-ai-models-and-their-validations
#5
Khim Chhantyal, Håkon Viumdal, Saba Mylvaganam
In oil and gas and geothermal installations, open channels followed by sieves for removal of drill cuttings, are used to monitor the quality and quantity of the drilling fluids. Drilling fluid flow rate is difficult to measure due to the varying flow conditions (e.g., wavy, turbulent and irregular) and the presence of drilling cuttings and gas bubbles. Inclusion of a Venturi section in the open channel and an array of ultrasonic level sensors above it at locations in the vicinity of and above the Venturi constriction gives the varying levels of the drilling fluid in the channel...
October 26, 2017: Sensors
https://www.readbyqxmd.com/read/29060950/fuzzy-logic-based-mobile-computing-system-for-hand-rehabilitation-after-neurological-injury
#6
Yu-Hsien Chiu, Tien-Wen Chen, Yenming J Chen, Ching-I Su, Kao-Shing Hwang, Wen-Hsien Ho
BACKGROUND: Effective neurological rehabilitation requires long term assessment and treatment. The rapid progress of virtual reality-based assistive technologies and tele-rehabilitation has increased the potential for self-rehabilitation of various neurological injuries under clinical supervision. OBJECTIVE: The objective of this study was to develop a fuzzy inference mechanism for a smart mobile computing system designed to support in-home rehabilitation of patients with neurological injury in the hand by providing an objective means of self-assessment...
October 13, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29060946/target-of-physiological-gait-realization-of-speed-adaptive-control-for-a-prosthetic-knee-during-swing-flexion
#7
Wujing Cao, Hongliu Yu, Weiliang Zhao, Jin Li, Xiaodong Wei
BACKGROUND: Prosthetic knee is the most important component of lower limb prosthesis. Speed adaptive for prosthetic knee during swing flexion is the key method to realize physiological gait. OBJECTIVE: This study aims to discuss the target of physiological gait, propose a speed adaptive control method during swing flexion and research the damping adjustment law of intelligent hydraulic prosthetic knee. METHODS: According to the physiological gait trials of healthy people, the control target during swing flexion is defined...
October 13, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29060542/posturography-stability-score-generation-for-stroke-patient-using-kinect-fuzzy-based-approach
#8
Oishee Mazumder, Kingshuk Chakravarty, Debatri Chatterjee, Aniruddha Sinha, Abhijit Das
Aim of this paper is to formulate a posturography stability score for stroke patients using fuzzy logic. Postural instability is one of the prominent symptoms of stroke, dementia, parkinsons disease, myopathy, etc. and is the major precursor of fall. Conventional scoring techniques used to assess postural stability require manual intervention and are dependent on live interaction with physiotherapist. We propose a novel scoring technique to calculate static stability of a person using posturography features acquired by Kinect sensor, which do not require any manual intervention or expert guidance, is cost effective and hence are ideal for tele rehabilitation purpose...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29060484/respiration-estimation-and-apnea-detection-using-fuzzy-logic
#9
Akrit Mudvari, Taikang Ning
This paper presents a fuzzy logic-based respiration monitoring algorithm that is capable of providing accurate respiration rate and detecting apnea episodes. The proposed algorithm employs several signal processing techniques to extract useful features that signify different respiratory behaviors. We implement a fuzzy logic-based system that examines the extracted respiratory signal features and categorizes the respiratory signals into respiration, body motion, and apnea. The performance of the underlying algorithm is validated using both the MIT physiology database and in-house respiration measurements...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29035236/fuzzy-adaptive-compensation-control-of-uncertain-stochastic-nonlinear-systems-with-actuator-failures-and-input-hysteresis
#10
Jianhui Wang, Zhi Liu, C L Philip Chen, Yun Zhang
Hysteresis exists ubiquitously in physical actuators. Besides, actuator failures/faults may also occur in practice. Both effects would deteriorate the transient tracking performance, and even trigger instability. In this paper, we consider the problem of compensating for actuator failures and input hysteresis by proposing a fuzzy control scheme for stochastic nonlinear systems. Compared with the existing research on stochastic nonlinear uncertain systems, it is found that how to guarantee a prescribed transient tracking performance when taking into account actuator failures and hysteresis simultaneously also remains to be answered...
October 12, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/29027910/a-lqr-based-controller-with-estimation-of-road-bank-for-improving-vehicle-lateral-and-rollover-stability-via-active-suspension
#11
Andres Riofrio, Susana Sanz, Maria Jesus L Boada, Beatriz L Boada
In this article, a Linear Quadratic Regulator (LQR) lateral stability and rollover controller has been developed including as the main novelty taking into account the road bank angle and using exclusively active suspension for both lateral stability and rollover control. The main problem regarding the road bank is that it cannot be measured by means of on-board sensors. The solution proposed in this article is performing an estimation of this variable using a Kalman filter. In this way, it is possible to distinguish between the road disturbance component and the vehicle's roll angle...
October 13, 2017: Sensors
https://www.readbyqxmd.com/read/28991747/dna-implementation-of-fuzzy-inference-engine-towards-dna-decision-making-systems
#12
Aby K George, Harpreet Singh
Decision-making systems are an integral part of any autonomous device. With the recent developments in bionanorobots, smart drugs, and engineered viruses, there is an immediate need of decision-making systems which are biocompatible in nature. DNA is considered a perfect candidate for designing the computing systems in such decision-making systems because of their bio-compatibility and programmability. Complex biological systems can be easily modeled/controlled using fuzzy logic operations with the help of linguistic rules...
October 9, 2017: IEEE Transactions on Nanobioscience
https://www.readbyqxmd.com/read/28971393/an-approach-of-non-linear-systems-through-fuzzy-control-based-on-takagi-sugeno-method
#13
Andreas Giannakis, Konstantinos Giannakis, Athanasios Karlis
Today, the advanced technology is a part of the everyday's life. As a result, most of the applications used require a more complex system in order to achieve a better performance. These systems have a mathematic background indicating the need of a better mathematical tool to increase the reliability of them. One of the most significant problems coming up against these systems is undoubtedly the non-linearity of the equations governing them. Herein, a linearization method is proposed and studied through intelligent control...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28948655/using-fuzzy-logic-to-determine-the-vulnerability-of-marine-species-to-climate-change
#14
Miranda C Jones, William W L Cheung
Marine species are being impacted by climate change and ocean acidification, although their level of vulnerability varies due to differences in species' sensitivity, adaptive capacity and exposure to climate hazards. Due to limited data on the biological and ecological attributes of many marine species, as well as inherent uncertainties in the assessment process, climate change vulnerability assessments in the marine environment frequently focus on a limited number of taxa or geographic ranges. As climate change is already impacting marine biodiversity and fisheries, there is an urgent need to expand vulnerability assessment to cover a large number of species and areas...
September 26, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28946482/fuzzy-logic-modeling-of-pb-ii-sorption-onto-mesoporous-nio-zncl2-rosa-canina-l-seeds-activated-carbon-nanocomposite-prepared-by-ultrasound-assisted-co-precipitation-technique
#15
Hamedreza Javadian, Maryam Ghasemi, Montserrat Ruiz, Ana Maria Sastre, Seyed Mostafa Hosseini Asl, Mojtaba Masomi
In this study, NiO/Rosa Canina-L seeds activated carbon nanocomposite (NiO/ACNC) was prepared by adding dropwise NaOH solution (2mol/L) to raise the suspension pH to around 9 at room temperature under ultrasonic irradiation (200W) as an efficient method and characterized by FE-SEM, FTIR and N2 adsorption-desorption isotherm. The effect of different parameters such as contact time (0-120min), initial metal ion concentration (25-200mg/L), temperature (298, 318 and 333K), amount of adsorbent (0.002-0.007g) and the solution's initial pH (1-7) on the adsorption of Pb (II) was investigated in batch-scale experiments...
January 2018: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28946231/the-use-of-fuzzy-logic-to-determine-the-concentration-of-betel-leaf-essential-oil-and-its-potency-as-a-juice-preservative
#16
Suradeep Basak
The present study was attempted to determine organoleptically acceptable concentration of betel leaf essential oil (BLEO) in raw apple juice using fuzzy logic approach, and to evaluate the efficacy of the acceptable concentration in the juice under refrigerated storage. The presence of BLEO components in treated juice was confirmed by FTIR spectroscopy. Based on similarity values, the acceptable concentration in the juice was found to be 0.19µl/ml of BLEO. Total antioxidant capacity of untreated juice was found to be 16% less than treated juice at the end of storage...
February 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28919287/active-fault-tolerant-control-based-on-interval-type-2-fuzzy-sliding-mode-controller-and-non-linear-adaptive-observer-for-3-dof-laboratory-helicopter
#17
Samir Zeghlache, Tarak Benslimane, Abderrahmen Bouguerra
In this paper, a robust controller for a three degree of freedom (3 DOF) helicopter control is proposed in presence of actuator and sensor faults. For this purpose, Interval type-2 fuzzy logic control approach (IT2FLC) and sliding mode control (SMC) technique are used to design a controller, named active fault tolerant interval type-2 Fuzzy Sliding mode controller (AFTIT2FSMC) based on non-linear adaptive observer to estimate and detect the system faults for each subsystem of the 3-DOF helicopter. The proposed control scheme allows avoiding difficult modeling, attenuating the chattering effect of the SMC, reducing the rules number of the fuzzy controller...
September 14, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28919286/a-novel-optimized-hybrid-fuzzy-logic-intelligent-pid-controller-for-an-interconnected-multi-area-power-system-with-physical-constraints-and-boiler-dynamics
#18
A H Gomaa Haroun, Yin-Ya Li
In the fast developing world nowadays, load frequency control (LFC) is considered to be a most significant role for providing the power supply with good quality in the power system. To deliver a reliable power, LFC system requires highly competent and intelligent control technique. Hence, in this article, a novel hybrid fuzzy logic intelligent proportional-integral-derivative (FLiPID) controller has been proposed for LFC of interconnected multi-area power systems. A four-area interconnected thermal power system incorporated with physical constraints and boiler dynamics is considered and the adjustable parameters of the FLiPID controller are optimized using particle swarm optimization (PSO) scheme employing an integral square error (ISE) criterion...
September 14, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28880161/unsupervised-segmentation-of-5d-hyperpolarized-carbon-13-mri-data-using-a-fuzzy-markov-random-field-model
#19
Ferdia A Gallagher, Charlie J Daniels
Hyperpolarized MRI with ¹³C-labelled compounds is an emerging clinical technique allowing in vivo metabolic processes to be characterized non-invasively. Accurate quantification of ¹³C data, both for clinical and research purposes, typically relies on the use of region-of-interest analysis to detect and compare regions of altered metabolism. However, it is not clear how this should be determined from the five-dimensional data produced and most standard methodologies are unable to exploit the multidimensional nature of the data...
September 4, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28873828/fuzzy-logic-to-determine-the-likelihood-of-survival-for-trauma-injury-patients
#20
Mohammed Saleh, Reza Saatchi, Fiona Lecky, Derek Burke
A system to determine the likelihood of survival for trauma injury patients is being developed. It uses a fuzzy logic approach that can model complex processes without reliance on sophisticated mathematical formulations and may have the potential to be more accurate than the existing approaches. The outline operation of the system that is currently in a prototype stage is described.
2017: Studies in Health Technology and Informatics
keyword
keyword
72502
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"