M. B. Malarvili

ORCID: 0000-0003-4410-7048
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Research Areas
  • Non-Invasive Vital Sign Monitoring
  • ECG Monitoring and Analysis
  • EEG and Brain-Computer Interfaces
  • Heart Rate Variability and Autonomic Control
  • Advanced Chemical Sensor Technologies
  • Muscle activation and electromyography studies
  • Neonatal and fetal brain pathology
  • Phonocardiography and Auscultation Techniques
  • Blind Source Separation Techniques
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • COVID-19 diagnosis using AI
  • Respiratory Support and Mechanisms
  • Neuroscience and Neural Engineering
  • Refrigeration and Air Conditioning Technologies
  • Inhalation and Respiratory Drug Delivery
  • Stress Responses and Cortisol
  • Cardiovascular and exercise physiology
  • Gas Sensing Nanomaterials and Sensors
  • SARS-CoV-2 detection and testing
  • Cardiac electrophysiology and arrhythmias
  • Healthcare Technology and Patient Monitoring
  • Gait Recognition and Analysis
  • bioluminescence and chemiluminescence research
  • Ergonomics and Musculoskeletal Disorders
  • Emotion and Mood Recognition

University of Technology Malaysia
2015-2024

Udayana University
2023

University of Malaya
2023

University of Birmingham
2018

Al Baha University
2017

Alpha Genesis (United States)
2014

The University of Queensland
2005-2009

Queensland University of Technology
2006

Abstract The development of a human respiration carbon dioxide (CO 2 ) measurement device to evaluate cardiorespiratory status inside and outside hospital setting has proven be challenging area research over the few last decades. Hence, we report real-time, user operable CO using an infrared sensor (Arduino Mega2560) thin film transistor (TFT, 3.5″), incorporated with low pass (cut-off frequency, 10 Hz) moving average (span, 8) filters. proposed measures features such as partial end-tidal...

10.1088/1752-7163/aa8dbd article EN cc-by Journal of Breath Research 2017-09-20

In this paper, we investigate the use of heart rate variability (HRV) for automatic newborn seizure detection. The proposed method consists a sequence processing steps, namely, obtaining HRV from ECG, extracting discriminating feature set, selecting an optimal subset full and, finally, classifying into seizure/nonseizure using supervised statistical classifier. Due to fact that signals are nonstationary, set time-frequency features is and extracted. order achieve efficient HRV-based...

10.1109/tbme.2009.2026908 article EN IEEE Transactions on Biomedical Engineering 2009-07-22

This paper presents an algorithm to detect the first heart sound (Si) and second (S2). The utilizes instantaneous energy of electrocardiogram (ECG) estimate presence S1 S2. Thus, segmentation can be done as it is essential in automatic diagnosis sounds. ECG performed verify occurrence S2 widely accepted pathologically that phonocardiogram (PCG) are two noninvasive source information depicting cardiac activity. a surface measurement electrical potential generated by activity tissues....

10.1109/cic.2003.1291157 article EN Computers in cardiology 2003-01-01

Currently, carbon dioxide (CO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> waveforms measured by capnography are used to estimate respiratory rate and end-tidal CO (EtCO ) in the clinic. However, shape of signal carries significant diagnostic information about asthmatic condition. Previous studies have shown a strong correlation between various features that quantitatively characterize discriminate asthma from non-asthma using...

10.1109/access.2018.2871091 article EN cc-by IEEE Access 2018-01-01

In order to analyse surface electromyography (EMG) signals, it is necessary extract the features based on a time or frequency domain. These approaches are mathematical assumption of signal stationarity. Stationarity EMG signals thoroughly examined, especially in isotonic contractions. According research, conflicting results have been identified depending varying window sizes. Therefore, this study, authors endeavoured determine suitable size during contractions utilising stationary tests,...

10.3390/app7101050 article EN cc-by Applied Sciences 2017-10-13

There are a number of automatic techniques available for detecting epileptic seizures using solely electroencephalogram (EEG), which has been the primary diagnosis tool in newborns. The electrocardiogram (ECG) much neglected seizure detection. Changes heart rate and ECG rhythm were previously linked to case adult humans animals. However, little is known about variability (HRV) changes human neonate during seizure. In this paper, we assess suitability HRV as detection features low-frequency...

10.1155/2007/50396 article EN cc-by EURASIP Journal on Advances in Signal Processing 2007-04-05

This research paper reports an enhancement of thermal, optical, mechanical and antibacterial activities the Polyvinyl alcohol–Nanodiamonds (PVA-NDs) composite required for food packaging industry. The synthesis composites was done by wet processing method. large surface area NDs facilitated robust interaction between hydroxyl group macromolecular chains PVA to enhance hydrogen bonding with rather than molecules. Thus, a reduction in diffraction peak intensity reported. improved thermal...

10.1016/j.heliyon.2024.e33270 article EN cc-by-nc Heliyon 2024-06-01

Respiratory illness demands pragmatic clinical monitoring and diagnosis to curb numerous fatal diseases in all aged groups. Due the complicated instrumentation, long amplification periods, restricted number of simultaneous detections, present clinically available multiplex diagnostic technologies are difficult deploy onsite platforms. The futuristic assessment medical eases respiratory using exhaled breath, due simple comfort non-invasive detecting techniques. Carbon dioxide (CO2) stands as...

10.1016/j.arabjc.2022.104478 article EN cc-by Arabian Journal of Chemistry 2022-12-05

We propose a new seizure detection framework based on combination of information extracted from newborn multi-channel electroencephalogram (EEG) and heart rate variability (HRV). Two approaches are investigated for the EEG HRV, namely; feature fusion classifier/decision fusion. The was performed by concatenating features vectors HRV signals while classifier accomplished fusing independent decisions individual classifiers HRV. Both proposed schemes consist sequence processing steps,...

10.1109/iembs.2008.4650276 article EN 2008-08-01

In this paper, a total of 13 parameters were studied and automatically extracted to differentiate the asthmatic non-asthmatic capnogram. From results, slope ratio (SR) newly introduced Hjorth Parameters (HP2 - Mobility) are best among investigated in differentiating two groups. Results show that associate with capnogram good index

10.1109/icsipa.2009.5478699 article EN 2009-01-01

This paper leads to developing a Labview based ECG patient monitoring system for cardiovascular using Simple Mail Transfer Protocol technology. The designed device has been divided into three parts. First part is amplifier circuit, built instrumentation (AD620) followed by signal conditioning circuit with the operation (lm741). Secondly, DAQ card used convert analog digital form further process. Furthermore, data processed in where filter techniques have implemented remove noise from...

10.1155/2015/701520 article EN cc-by Journal of Medical Engineering 2015-12-10

Introduction: Asthma is one of the most common heterogeneous respiratory chronic diseases and fourteenth imperative illness in world terms duration extent disability. The existing method for early identification asthma based on health care provider’s physical assessment spirometer or peak flow meter which manual unreliable if patients are non-cooperative. Therefore, capnography, measured respired carbon dioxide concentration, has been proposed as a patient independent asthma. Aim: This study...

10.7860/jcdr/2018/35870.12099 article EN cc-by-nc-nd JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH 2018-01-01

Gender recognition is trivial for a physiotherapist, but it considered challenge computers. The electromyography (EMG) and heart rate variability (HRV) were utilized in this work gender during exercise using stepper. relevant features extracted selected. selected then fused to automatically predict recognition. However, the feature selection classification became ensure better accuracy. Thus, paper, approach based on both performance diversity between two from rank-score characteristic (RSC)...

10.3390/app7040348 article EN cc-by Applied Sciences 2017-03-31

Even though extensive research have been done on electromyogram (EMG) based prosthetic hand control, relatively lesser attention received for control of individual fingers. An EMG recognition finger movements will enable a more dexterous hands. This paper reports the index movements: flexion-extension and abduction-adduction two channel EMG. The focus was deriving an feature vector through combination features higher rate stability index. Feature derived linear discriminant analysis average...

10.1016/j.procs.2018.07.012 article EN Procedia Computer Science 2018-01-01

This paper addresses the feature selection problem by using a discriminant and redundancy based method to select subset with high discriminatory power between classes of newborn heart rate variability (HRV) corresponding seizure non-seizure. The proposed combines Fast Correlation Based Filter (FCBF) criteria for analysis area under Receiver Operating Curves (AUC) analysis. classification accuracies selected features were compared 3 different classifiers, namely linear classifier, quadratic...

10.1109/icics.2007.4449765 article EN 2007-01-01

This article proposes a new method for newborn seizure detection that uses information extracted from both multi-channel electroencephalogram (EEG) and single channel electrocardiogram (ECG). The aim of the study is to assess whether additional ECG can improve performance detectors based solely on EEG. Two different approaches were used combine this information. first approach, known as feature fusion, involves combining features EEG heart rate variability (HRV) into vector prior feeding it...

10.1186/1687-6180-2012-215 article EN cc-by EURASIP Journal on Advances in Signal Processing 2012-10-07
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