Nor Salwa Damanhuri

Nor Salwa Damanhuri
Universiti Teknologi Mara (Pulau Pinang) · Faculty of Electrical Engineering

PhD in Bioengineering

About

44
Publications
17,930
Reads
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226
Citations
Citations since 2017
19 Research Items
162 Citations
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Introduction
Lung mechanics for mechanically ventilated patients. Data monitoring
Additional affiliations
October 2011 - April 2015
University of Canterbury
Position
  • PhD Student
October 2011 - April 2015
University of Canterbury
Position
  • PhD Student
October 2006 - present
Universiti Teknologi Mara (Pulau Pinang)
Position
  • Professor (Associate)
Education
September 2004 - September 2005
The University of Sheffield
Field of study
  • Control Systems Engineering
November 1998 - March 2002
Universiti Tenaga Nasional (UNITEN)
Field of study
  • Electrical & Electronics

Publications

Publications (44)
Article
Full-text available
The virtual monitoring system has rapidly increased its popularity because of its graphical based programming especially for data acquisition and measurements. In order to monitor the performance of the system especially for renewable energy (REN) source application such as solar photovoltaic (PV), data-acquisition systems had been used to collect...
Conference Paper
Full-text available
Physiological models of respiratory mechanics can be used to optimise mechanical ventilator settings to improve critically ill patient outcomes. Models are generally generated via either physical measurements or analogous behaviours that can model experimental outcomes. However, models derived solely from physical measurements are infrequently appl...
Article
Full-text available
Background: Respiratory mechanics models have the potential to guide mechanical ventilation. Airway branching models (ABMs) were developed from classical fluid mechanics models but do not provide accurate models of in vivo behaviour. Hence, the ABM was improved to include patient-specific parameters and better model observed behaviour (ABMps). Me...
Conference Paper
Full-text available
Modeling the respiratory system can aid clinical decision making during mechanical ventilation (MV) in the intensive care. However, most lung models only use airway pressure and flow data during inspiration phase of the breathing, and the data from expiration are often neglected. In this study, we hypothesized that the airway pressure and flow data...
Article
Full-text available
Patients with Acute Respiratory Distress Syndrome (ARDS) required mechanical ventilation (MV) for breathing support. However, some MV patients encountered spontaneous breathing (SB) efforts while fully sedated which can obscure the true underlying respiratory mechanics of these patients. Thus, a model-based method is required to reconstruct the mis...
Article
Full-text available
Mechanical ventilation (MV) provides respiratory support for critically ill patients in the intensive care unit (ICU). Waveform data output by the ventilator provides valuable physiological and diagnostic information. However, existing systems do not provide full access to this information nor allow for real-time, non-invasive data collection. Ther...
Article
Background and objective : Mechanical ventilation (MV) provides breathing support for acute respiratory distress syndrome (ARDS) patients in the intensive care unit, but is difficult to optimise. Too much, or too little of pressure or volume support can cause further ventilator-induced lung injury, increasing length of MV, cost and mortality. Patie...
Article
Full-text available
Respiratory system modelling can assist clinicians in making clinical decisions during mechanical ventilation (MV) management in intensive care. However, there are some cases where the MV patients produce asynchronous breathing (asynchrony events) due to the spontaneous breathing (SB) effort even though they are fully sedated. Currently, most of th...
Article
Background and Objective Mechanical ventilation is the primary form of care provided to respiratory failure patients. Limited guidelines and conflicting results from major clinical trials means selection of mechanical ventilation settings relies heavily on clinician experience and intuition. Determining optimal mechanical ventilation settings is th...
Article
While lung protective mechanical ventilation (MV) guidelines have been developed to avoid ventilator-induced lung injury (VILI), a one-size-fits-all approach cannot benefit every individual patient. Hence, there is significant need for the ability to provide patient-specific MV settings to ensure safety, and optimise patient care. Model-based appro...
Article
Full-text available
Edge detection plays an important role in computer vision to extract object boundary. Multiscale edge detection method provides a variety of image features by different resolution at multiscale of edges. The method extracts coarse and fine structure edges simultaneously in an image. Due to this, the multiscale method enables more reliable edges are...
Article
Full-text available
The rise of model-based and machine learning methods have created increasingly realistic opportunities to implement personalized, patient-specific mechanical ventilation (MV) in the ICU. These methods require monitoring of real-time patient ventilation waveform data (VWD) during MV treatment. However, there are relatively few non-invasive and/or no...
Article
Full-text available
Traffic congestion has become a serious issue due to the growing number of vehicles in Malaysia. Traffic light control system is widely used to control the flow of road junction. Currently, most of the traffic light system used pre-time and count down timers to control traffic flow. Due to the fixed-time setting, often the system unable to handle u...
Article
Full-text available
In aquaculture industry, measurement of fish length plays an important role in monitoring and determining fish growth, gender, age and reproduction. Currently, fish rearing industries are using measuring wooden board or acrylic plastic with the scale attached to the board itself. However, this method is causing a stress on the fish when measuring t...
Article
Full-text available
Maintaining the quality of the water quality is one of the important aspects that play a substantial effect on the aquaculture industry especially in the tilapia industry. The quality of the water needs to be continuously monitored as any deviation from the allowed critical parameters such as water temperature and potential of hydrogen (pH) can cau...
Article
Full-text available
Diabetes mellitus is a metabolic disorder that derived from the body’s inability to attain glucose homeostasis. Further increase in glucose level in the bloodstream, if left untreated, will lead to further metabolic disorder and complication such as amputation of a lower limb that caused by a foot ulcer. Approximately, 60% of diabetic foot ulcer co...
Article
Full-text available
Billing system technology in the market nowadays is less efficient in parallel with revolution of technology. Conventional method widely uses a barcode scanner that has disadvantages as it is a manual system and requires man power. Besides that, the conventional method does not store the information such as warranty of the product and the informati...
Article
Full-text available
Mathematical modelling of respiratory system can guide clinicians in better monitoring and decision making for mechanically ventilated (MV) patients in intensive care unit (ICU). However, most mathematical models are develop for fully sedated patients and not particularly reliable to be applied for spontaneous breathing (SB) patients. Monitoring re...
Article
Background: Modelling insulin secretion as a function of peripheral C-peptide levels by mathematical deconvolution is widespread. However, the measurement resolution for successful deconvolution and high cost of C-peptide assays means measurement of insulin secretion can only be undertaken in small scale research endeavours. This research models th...
Article
Background: Respiratory system modelling can aid clinical decision making during mechanical ventilation (MV) in intensive care. However, spontaneous breathing (SB) efforts can produce entrained "M-wave" airway pressure waveforms that inhibit identification of accurate values for respiratory system elastance and airway resistance. A pressure wave r...
Article
Modelling the respiratory system of intensive care patients can enable individualized mechanical ventilation therapy and reduce ventilator induced lung injuries. However, spontaneous breathing (SB) efforts result in asynchronous pressure waveforms that mask underlying respiratory mechanics. In this study, a nonlinear auto-regressive (NARX) model wa...
Article
Endogenous insulin (UN) secreted by pancreatic β-cells plays a leading role in glucose homeostasis. Pathological changes in UN can enable early diagnosis of metabolic dysfunction before the emergence of type 2 diabetes. The dynamic insulin sensitivity and secretion test (DISST) is a dynamic test that is able to quantify participant-specific insulin...
Article
Full-text available
Estimating respiratory mechanics of mechanically ventilated (MV) patients is unreliable when patients exhibit spontaneous breathing (SB) efforts on top of ventilator support. This reverse triggering effect [1] results in an M-wave shaped pressure wave. A model-based method to reconstruct the affected airway pressure curve is presented to enable est...
Conference Paper
Full-text available
Current practice in determining Mechanical Ventilation (MV) settings is highly variable with little consensus, forcing clinicians to rely on general approaches and clinical intuition. The Clinical Utilisation of Respiratory Elastance (CURE) system was developed to aid clinical determination of important MV settings by providing real-time patient-sp...
Conference Paper
Full-text available
Mechanical ventilation (MV) is one of the most common, but difficult, costly and variably delivered therapies in intensive care. Model-based estimated patient-specific respiratory elastance can be used to guide clinical staff in selecting positive end-expiratory pressure (PEEP) for MV patients. The Clinical Utilisation of Respiratory Elastance (CUR...
Conference Paper
Full-text available
Asynchronous events (AE) occur during mechanical ventilation (MV) therapy when the patient's breathing is not synchronised with the ventilator support. Frequent AE indicates sub-optimal ventilation therapy and may lead to further complications. Asynchrony Index (AI) gives the percentage of AEs as a percentage of total breaths, but is only assessed...
Conference Paper
Full-text available
Respiratory mechanics models can be used to optimise patient-specific mechanical ventilation (MV), but are limited to fully sedated MV patients who are not spontaneously breathing. This research presents a non-invasive model-based method to determine respiratory mechanics of spontaneously breathing MV patients. Patient-specific respiratory mechanic...
Conference Paper
Full-text available
Modeling the respiratory system can aid clinical decision making during mechanical ventilation (MV) in the intensive care. However, most lung models only use airway pressure and flow data during inspiration phase of the breathing, and the data from expiration are often neglected. In this study, we hypothesized that the airway pressure and flow data...
Conference Paper
Modeling the respiratory system can aid clinical decision making during mechanical ventilation (MV) in the intensive care. However, most lung models only use airway pressure and flow data during inspiration phase of the breathing, and the data from expiration are often neglected. In this study, we hypothesized that the airway pressure and flow data...
Article
Full-text available
Model-based methods can be used to characterise patient-specific condition and response to mechanical ventilation (MV) during treatment for acute respiratory distress syndrome (ARDS). Conventional metrics of respiratory mechanics are based on inspiration only, neglecting data from the expiration cycle. However, it is hypothesised that expiratory da...
Conference Paper
Inefficient water usage during irrigation scheduling is a common crisis in agricultural sector. This crisis mostly occurs in time-controlled irrigation systems where timer will still turn on the sprinkler even on raining day. This research is proposed to overcome the mentioned crisis where the sprinkler is controlled by soil moisture sensor. In add...
Article
Full-text available
Dual-tariff PV energy system was introduced to maneuver the lower tariff rate at off-peak period and to reduce the capital installation cost of PV energy system. In this paper, the system configuration, architecture and operation of the dual-tariff PV energy system are described and discussed. A 2.4 kW prototype system has been developed and run 24...
Article
Full-text available
Dual-power PV-grid system was introduced to manipulate the lower tariff rate at off-peak period and to reduce the capital installation cost of PV energy system. In this paper, the system configuration, architecture and operation of the dual-power PV energy system are described and discussed. From the review of various multilevel inverter topologies...
Article
Full-text available
The solar Photovoltaic (PV) systems have been gradually growing on demand in Malaysia. One of the main objectives in developing the solar PV plant is on the cost effective feed-in tariff (FIT). The aim of this paper is to design and analyse the cost-benefit of a small scale guard house in Universiti Teknologi MARA (UiTM) Pulau Pinang, Malaysia whic...
Article
Full-text available
This project presents a detail review of the subject of fault diagnosis in rotating machinery. Three main steps of fault diagnosis; feature extraction, dimensionality reduction and fault classification are being discussed. This project focuses on the faulty bearing which mainly caused by mass imbalance and axis misalignment. By analyzing the vibrat...
Conference Paper
Full-text available
In this paper, the single-phase matrix converter (SPMQ is presented to operate as an inverter with fully controllable regenerative capabilities. PWM technique was used to calculate the switch duty ratio to synthesize the output. Safe commutation strategy was implemented to avoid voltage spikes due to inductive load. Selected simulation and experime...

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