Pasan Hettiarachchi

Development and performance of a sleep estimation algorithm using a single accelerometer placed on the thigh: an evaluation against polysomnography

Johansson, Peter; Crowley, Patrick; Axelsson, John; Franklin, Karl et al.

Part of Journal of Sleep Research, 2023

• DOI for Development and performance of a sleep estimation algorithm using a single accelerometer placed on the thigh: an evaluation against polysomnography
• Download full text (pdf) of Development and performance of a sleep estimation algorithm using a single accelerometer placed on the thigh: an evaluation against polysomnography

The Surveillance of Physical Activity, Sedentary Behavior, and Sleep: Protocol for the Development and Feasibility Evaluation of a Novel Measurement System

Crowley, Patrick; Ikeda, Erika; Islam, Sheikh Mohammed Shariful; Kildedal, Rasmus et al.

Part of JMIR Research Protocols, 2022

• DOI for The Surveillance of Physical Activity, Sedentary Behavior, and Sleep: Protocol for the Development and Feasibility Evaluation of a Novel Measurement System
• Download full text (pdf) of The Surveillance of Physical Activity, Sedentary Behavior, and Sleep: Protocol for the Development and Feasibility Evaluation of a Novel Measurement System

Attachment process of the discharge of competing grounded electrodes - Experimental observations and modeling

Arevalo, Liliana; Lobato, André; Cooray, Vernon; Hettiarachchi, Pasan et al.

Part of 2021 35th International Conference on Lightning Protection (ICLP) and XVI International Symposium On Lightning Protection (SIPDA), 2021

• DOI for Attachment process of the discharge of competing grounded electrodes - Experimental observations and modeling

Observations of X-rays in 4-meters long laboratory sparks under positive lightning impulse

Wooi, Chin-Leong; Hettiarachchi, Pasan; Rahman, Mahbubur; Cooray, Vernon et al.

Part of 2021 35TH INTERNATIONAL CONFERENCE ON LIGHTNING PROTECTION (ICLP) AND XVI INTERNATIONAL SYMPOSIUM ON LIGHTNING PROTECTION (SIPDA), 2021

• DOI for Observations of X-rays in 4-meters long laboratory sparks under positive lightning impulse

Frequency spectra of various events pertinent to lightning cloud flashes obtained from wavelet transform technique and ratified by narrow band measurement technique

Sharma, S. R.; Ismail, Mohd Muzafar; Hettiarachchi, Pasan; Cooray, Vernon et al.

Part of Journal of Atmospheric and Solar-Terrestrial Physics, 2021

• DOI for Frequency spectra of various events pertinent to lightning cloud flashes obtained from wavelet transform technique and ratified by narrow band measurement technique

Validity of a Non-Proprietary Algorithm for Identifying Lying Down Using Raw Data from Thigh-Worn Triaxial Accelerometers

Hettiarachchi, Pasan; Aili, Katarina; Holtermann, Andreas; Stamatakis, Emmanuel et al.

Part of Sensors, 2021

• DOI for Validity of a Non-Proprietary Algorithm for Identifying Lying Down Using Raw Data from Thigh-Worn Triaxial Accelerometers
• Download full text (pdf) of Validity of a Non-Proprietary Algorithm for Identifying Lying Down Using Raw Data from Thigh-Worn Triaxial Accelerometers

Observations of X-rays from Laboratory Sparks in Air at Atmospheric Pressure under Negative Switching Impulse Voltages

Rahman, Mahbubur; Hettiarachchi, Pasan; Cooray, Vernon; Dwyer, Joseph et al.

Part of Atmosphere, 2019

• DOI for Observations of X-rays from Laboratory Sparks in Air at Atmospheric Pressure under Negative Switching Impulse Voltages
• Download full text (pdf) of Observations of X-rays from Laboratory Sparks in Air at Atmospheric Pressure under Negative Switching Impulse Voltages

High-Speed Video Observation of a Dart Leader Producing X-rays

Saba, M. M. F.; Ferro, M. A. S.; Cuactros, E. T.; Custodio, D. M. et al.

Part of Journal of Geophysical Research - Space Physics, p. 10564-10570, 2019

• DOI for High-Speed Video Observation of a Dart Leader Producing X-rays
• Download full text (pdf) of High-Speed Video Observation of a Dart Leader Producing X-rays

Time Domain Analysis of the Lightning Interaction with Wave Energy Converters

Hettiarachchi, Pasan; Lobato, André; Cooray, Vernon; Leijon, Mats

Part of 2018 34th international conference on lightning protection (ICLP 2018), 2018

The leader propagation velocity in long air gaps

Arevalo, Liliana; Wu, Dong; Hettiarachchi, Pasan; Cooray, Vernon et al.

Part of 2018 34th international conference on lightning protection (ICLP 2018), 2018

• DOI for The leader propagation velocity in long air gaps

Measurements of X-Ray Emission from Laboratory Sparks and Upward Initiated Lightning

Hettiarachchi, Pasan

2018

• Download full text (pdf) of Measurements of X-Ray Emission from Laboratory Sparks and Upward Initiated Lightning

X-ray observations at Gaisberg Tower

Hettiarachchi, Pasan; Cooray, Vernon; Diendorfer, Gerhard; Pichler, Hannes et al.

Part of Atmosphere, 2018

• DOI for X-ray observations at Gaisberg Tower
• Download full text (pdf) of X-ray observations at Gaisberg Tower

Energy Distribution of X-rays Produced by Meter-long Negative Discharges in Air

Hettiarachchi, Pasan; Cooray, Vernon; Rahman, Mahbubur; Dwyer, Joseph

Part of Atmosphere, 2017

• DOI for Energy Distribution of X-rays Produced by Meter-long Negative Discharges in Air

X-rays from negative laboratory sparks in air: Influence of the anode geometry

Hettiarachchi, Pasan; Rahman, Mahbubur; Cooray, Vernon; Dwyer, Joseph

Part of Journal of Atmospheric and Solar-Terrestrial Physics, p. 190-194, 2017

• DOI for X-rays from negative laboratory sparks in air: Influence of the anode geometry

On the occurrence of ‘bead lightning’ phenomena in long laboratory sparks

Vayanganie, S.P.A.; Cooray, Vernon; Rahman, Mahbubur; Hettiarachchi, Pasan et al.

Part of Physics Letters A, p. 816-821, 2016

• DOI for On the occurrence of ‘bead lightning’ phenomena in long laboratory sparks

The study of lightning strikes to common buildings in Brazil

Saba, Marcelo; Naccarato, Kleber; de Paiva, Amanda R; Schumann, Carina et al.

2016

Production of X-rays in air gaps stressed by switching impulse voltages

Rahman, Mahbubur; Hettiarachchi, Pasan; Cooray, Vernon; Dwyer, J. R. et al.

2016

Fractal analysis of long laboratory sparks of high speed video recordings

Vayanganie, Amila; Gunasekara, Lasitha; Fernando, Mahendra; Sonnadara, Upul et al.

2016

Experimental study of leader tortuosity and velocity in long rod-plane air discharges

Diaz, Oscar; Hettiarachchi, Pasan; Rahman, Mahbubur; Cooray, Vernon et al.

Part of IEEE transactions on dielectrics and electrical insulation, p. 806-812, 2016

• DOI for Experimental study of leader tortuosity and velocity in long rod-plane air discharges

X-rays from long laboratory sparks: Influence of the anode geometry

Hettiarachchi, Pasan; Rahman, Mahbubur; Cooray, Vernon

Part of International Conference on Atmospheric Electricity ICAE 2014, Norman, OK, U.S.A., 2014

Associations between daily composition of 24 h physical behavior with affective states and working memory

Le, Flora; Mattern, Viola; Johansson, Peter; Hettiarachchi, Pasan et al.

Part of Scientific Reports, 2025

• DOI for Associations between daily composition of 24 h physical behavior with affective states and working memory
• Download full text (pdf) of Associations between daily composition of 24 h physical behavior with affective states and working memory

Comparing Physical Activity Metrics From Different Placements of Thigh-Worn Accelerometers

Franzese, Fabio; Hettiarachchi, Pasan; Holtermann, Andreas; Ahmadi, Matthew et al.

Part of Journal for the Measurement of Physical Behaviour, 2025

• DOI for Comparing Physical Activity Metrics From Different Placements of Thigh-Worn Accelerometers
• Download full text (pdf) of Comparing Physical Activity Metrics From Different Placements of Thigh-Worn Accelerometers

Associations between knee pain and knee-loading physical activities at work and leisure: a cross-sectional study based on accelerometer measurements

Törnblom, Margareta; Haglund, Emma; Bremander, Ann; Nilsdotter, Anna et al.

Part of BMC Musculoskeletal Disorders, 2025

• DOI for Associations between knee pain and knee-loading physical activities at work and leisure: a cross-sectional study based on accelerometer measurements
• Download full text (pdf) of Associations between knee pain and knee-loading physical activities at work and leisure: a cross-sectional study based on accelerometer measurements

Device-Measured 24-Hour Movement Behaviors and Blood Pressure: A 6-Part Compositional Individual Participant Data Analysis in the ProPASS Consortium

Blodgett, Joanna M.; Ahmadi, Matthew N.; Atkin, Andrew J.; Pulsford, Richard M. et al.

Part of Circulation, p. 159-170, 2025

• DOI for Device-Measured 24-Hour Movement Behaviors and Blood Pressure: A 6-Part Compositional Individual Participant Data Analysis in the ProPASS Consortium
• Download full text (pdf) of Device-Measured 24-Hour Movement Behaviors and Blood Pressure: A 6-Part Compositional Individual Participant Data Analysis in the ProPASS Consortium

Assessing the criterion validity of the activPAL CREA v1.3 algorithm and ActiPASS 2023.12 software for detecting steps during a progressive treadmill-based laboratory protocol

Pellerine, Liam. P.; Courish, Molly K.; Petterson, Jennifer L.; Shivgulam, Madeline E. et al.

Part of Journal of Sports Sciences, p. 1951-1958, 2024

• DOI for Assessing the criterion validity of the activPAL CREA v1.3 algorithm and ActiPASS 2023.12 software for detecting steps during a progressive treadmill-based laboratory protocol

Associations between daily composition of 24 h physical behavior with affective states and working memory

Le, Flora; Mattern, Viola; Johansson, Peter; Hettiarachchi, Pasan et al.

Part of Scientific Reports, 2025

• DOI for Associations between daily composition of 24 h physical behavior with affective states and working memory
• Download full text (pdf) of Associations between daily composition of 24 h physical behavior with affective states and working memory

Comparing Physical Activity Metrics From Different Placements of Thigh-Worn Accelerometers

Franzese, Fabio; Hettiarachchi, Pasan; Holtermann, Andreas; Ahmadi, Matthew et al.

Part of Journal for the Measurement of Physical Behaviour, 2025

• DOI for Comparing Physical Activity Metrics From Different Placements of Thigh-Worn Accelerometers
• Download full text (pdf) of Comparing Physical Activity Metrics From Different Placements of Thigh-Worn Accelerometers

Associations between knee pain and knee-loading physical activities at work and leisure: a cross-sectional study based on accelerometer measurements

Törnblom, Margareta; Haglund, Emma; Bremander, Ann; Nilsdotter, Anna et al.

Part of BMC Musculoskeletal Disorders, 2025

• DOI for Associations between knee pain and knee-loading physical activities at work and leisure: a cross-sectional study based on accelerometer measurements
• Download full text (pdf) of Associations between knee pain and knee-loading physical activities at work and leisure: a cross-sectional study based on accelerometer measurements

Device-Measured 24-Hour Movement Behaviors and Blood Pressure: A 6-Part Compositional Individual Participant Data Analysis in the ProPASS Consortium

Blodgett, Joanna M.; Ahmadi, Matthew N.; Atkin, Andrew J.; Pulsford, Richard M. et al.

Part of Circulation, p. 159-170, 2025

• DOI for Device-Measured 24-Hour Movement Behaviors and Blood Pressure: A 6-Part Compositional Individual Participant Data Analysis in the ProPASS Consortium
• Download full text (pdf) of Device-Measured 24-Hour Movement Behaviors and Blood Pressure: A 6-Part Compositional Individual Participant Data Analysis in the ProPASS Consortium

Assessing the criterion validity of the activPAL CREA v1.3 algorithm and ActiPASS 2023.12 software for detecting steps during a progressive treadmill-based laboratory protocol

Pellerine, Liam. P.; Courish, Molly K.; Petterson, Jennifer L.; Shivgulam, Madeline E. et al.

Part of Journal of Sports Sciences, p. 1951-1958, 2024

• DOI for Assessing the criterion validity of the activPAL CREA v1.3 algorithm and ActiPASS 2023.12 software for detecting steps during a progressive treadmill-based laboratory protocol

Longitudinal Associations between 24-h Movement Behaviors and Cardiometabolic Biomarkers: A Natural Experiment over Retirement

Suorsa, Kristin; Leskinen, Tuija; Gupta, Nidhi; Andersen, Lars l. et al.

Part of Medicine & Science in Sports & Exercise, p. 1297-1306, 2024

• DOI for Longitudinal Associations between 24-h Movement Behaviors and Cardiometabolic Biomarkers: A Natural Experiment over Retirement

Relationship of device measured physical activity type and posture with cardiometabolic health markers: pooled dose-response associations from the Prospective Physical Activity, Sitting and Sleep Consortium

Ahmadi, Matthew N.; Blodgett, Joanna M.; Atkin, Andrew J.; Chan, Hsiu-Wen et al.

Part of Diabetologia, p. 1051-1065, 2024

• DOI for Relationship of device measured physical activity type and posture with cardiometabolic health markers: pooled dose-response associations from the Prospective Physical Activity, Sitting and Sleep Consortium
• Download full text (pdf) of Relationship of device measured physical activity type and posture with cardiometabolic health markers: pooled dose-response associations from the Prospective Physical Activity, Sitting and Sleep Consortium

Assessing the Accuracy of Activity Classification Using Thigh-Worn Accelerometry: A Validation Study of ActiPASS in School-Aged Children

Lendt, Claas; Hettiarachchi, Pasan; Johansson, Peter; Duncan, Scott et al.

Part of Journal of Physical Activity and Health, p. 1092-1099, 2024

• DOI for Assessing the Accuracy of Activity Classification Using Thigh-Worn Accelerometry: A Validation Study of ActiPASS in School-Aged Children

Direct observations of X-rays produced by upward positive lightning

Oregel-Chaumont, Toma; Sunjerga, Antonio; Hettiarachchi, Pasan; Cooray, Vernon et al.

Part of Scientific Reports, 2024

• DOI for Direct observations of X-rays produced by upward positive lightning
• Download full text (pdf) of Direct observations of X-rays produced by upward positive lightning

Changes in Accelerometer-Measured Physical Activity and Sedentary Time Across Retirement Transition as a Predictor of Self-Rated Health

Fröberg, Andreas; Sacco, Lawrence; Suorsa, Kristin; Leskinen, Tuija et al.

Part of Journal of Physical Activity and Health, p. 778-786, 2024

• DOI for Changes in Accelerometer-Measured Physical Activity and Sedentary Time Across Retirement Transition as a Predictor of Self-Rated Health

Moving Beyond the Characterization of Activity Intensity Bouts as Square Waves Signals

O'Brien, Myles; Petterson, Jennifer; Pellerine, Liam; Shivgulam, Madeline et al.

Part of Journal for the Measurement of Physical Behaviour, p. 162-167, 2023

• DOI for Moving Beyond the Characterization of Activity Intensity Bouts as Square Waves Signals

Device-measured physical activity and cardiometabolic health: the Prospective Physical Activity, Sitting, and Sleep (ProPASS) consortium

Blodgett, Joanna M.; Ahmadi, Matthew N; Atkin, Andrew J; Chastin, Sebastien et al.

Part of European Heart Journal, 2023

• DOI for Device-measured physical activity and cardiometabolic health: the Prospective Physical Activity, Sitting, and Sleep (ProPASS) consortium
• Download full text (pdf) of Device-measured physical activity and cardiometabolic health: the Prospective Physical Activity, Sitting, and Sleep (ProPASS) consortium

CHANGES IN PHYSICAL ACTIVITY, SEDENTARY TIME, AND SELF-RATED HEALTH ACROSS THE RETIREMENT TRANSITION

Westerlund, Hugo; Fröberg, Andreas; Sacco, Lawrence; Suorsa, Kristin et al.

Part of Innovation in Aging, p. 711-711, 2023

• DOI for CHANGES IN PHYSICAL ACTIVITY, SEDENTARY TIME, AND SELF-RATED HEALTH ACROSS THE RETIREMENT TRANSITION
• Download full text (pdf) of CHANGES IN PHYSICAL ACTIVITY, SEDENTARY TIME, AND SELF-RATED HEALTH ACROSS THE RETIREMENT TRANSITION

Step Length, But Not Stepping Cadence, Strongly Predicts Physical Activity Intensity During Jogging and Running

Pellerine, Liam P.; Petterson, Jennifer L.; Shivgulam, Madeline E.; Johansson, Peter et al.

Part of Measurement in Physical Education and Exercise Science, p. 352-361, 2023

• DOI for Step Length, But Not Stepping Cadence, Strongly Predicts Physical Activity Intensity During Jogging and Running

Modifications of 24-h movement behaviors to prevent obesity in retirement: a natural experiment using compositional data analysis

Suorsa, Kristin; Gupta, Nidhi; Leskinen, Tuija; Andersen, Lars L. et al.

Part of International Journal of Obesity, p. 922-930, 2023

• DOI for Modifications of 24-h movement behaviors to prevent obesity in retirement: a natural experiment using compositional data analysis
• Download full text (pdf) of Modifications of 24-h movement behaviors to prevent obesity in retirement: a natural experiment using compositional data analysis

Development and performance of a sleep estimation algorithm using a single accelerometer placed on the thigh: an evaluation against polysomnography

Johansson, Peter; Crowley, Patrick; Axelsson, John; Franklin, Karl et al.

Part of Journal of Sleep Research, 2023

• DOI for Development and performance of a sleep estimation algorithm using a single accelerometer placed on the thigh: an evaluation against polysomnography
• Download full text (pdf) of Development and performance of a sleep estimation algorithm using a single accelerometer placed on the thigh: an evaluation against polysomnography

The Surveillance of Physical Activity, Sedentary Behavior, and Sleep: Protocol for the Development and Feasibility Evaluation of a Novel Measurement System

Crowley, Patrick; Ikeda, Erika; Islam, Sheikh Mohammed Shariful; Kildedal, Rasmus et al.

Part of JMIR Research Protocols, 2022

• DOI for The Surveillance of Physical Activity, Sedentary Behavior, and Sleep: Protocol for the Development and Feasibility Evaluation of a Novel Measurement System
• Download full text (pdf) of The Surveillance of Physical Activity, Sedentary Behavior, and Sleep: Protocol for the Development and Feasibility Evaluation of a Novel Measurement System

Frequency spectra of various events pertinent to lightning cloud flashes obtained from wavelet transform technique and ratified by narrow band measurement technique

Sharma, S. R.; Ismail, Mohd Muzafar; Hettiarachchi, Pasan; Cooray, Vernon et al.

Part of Journal of Atmospheric and Solar-Terrestrial Physics, 2021

• DOI for Frequency spectra of various events pertinent to lightning cloud flashes obtained from wavelet transform technique and ratified by narrow band measurement technique

Validity of a Non-Proprietary Algorithm for Identifying Lying Down Using Raw Data from Thigh-Worn Triaxial Accelerometers

Hettiarachchi, Pasan; Aili, Katarina; Holtermann, Andreas; Stamatakis, Emmanuel et al.

Part of Sensors, 2021

• DOI for Validity of a Non-Proprietary Algorithm for Identifying Lying Down Using Raw Data from Thigh-Worn Triaxial Accelerometers
• Download full text (pdf) of Validity of a Non-Proprietary Algorithm for Identifying Lying Down Using Raw Data from Thigh-Worn Triaxial Accelerometers

Observations of X-rays from Laboratory Sparks in Air at Atmospheric Pressure under Negative Switching Impulse Voltages

Rahman, Mahbubur; Hettiarachchi, Pasan; Cooray, Vernon; Dwyer, Joseph et al.

Part of Atmosphere, 2019

• DOI for Observations of X-rays from Laboratory Sparks in Air at Atmospheric Pressure under Negative Switching Impulse Voltages
• Download full text (pdf) of Observations of X-rays from Laboratory Sparks in Air at Atmospheric Pressure under Negative Switching Impulse Voltages

High-Speed Video Observation of a Dart Leader Producing X-rays

Saba, M. M. F.; Ferro, M. A. S.; Cuactros, E. T.; Custodio, D. M. et al.

Part of Journal of Geophysical Research - Space Physics, p. 10564-10570, 2019

• DOI for High-Speed Video Observation of a Dart Leader Producing X-rays
• Download full text (pdf) of High-Speed Video Observation of a Dart Leader Producing X-rays

X-ray observations at Gaisberg Tower

Hettiarachchi, Pasan; Cooray, Vernon; Diendorfer, Gerhard; Pichler, Hannes et al.

Part of Atmosphere, 2018

• DOI for X-ray observations at Gaisberg Tower
• Download full text (pdf) of X-ray observations at Gaisberg Tower

On the possible origin of chaotic pulse trains in lightning flashes

Ismail, Mohd Muzafar; Rahman, Mahbubur; Cooray, Vernon; Fernando, Mahendra et al.

Part of Atmosphere, 2017

• DOI for On the possible origin of chaotic pulse trains in lightning flashes
• Download full text (pdf) of On the possible origin of chaotic pulse trains in lightning flashes

Energy Distribution of X-rays Produced by Meter-long Negative Discharges in Air

Hettiarachchi, Pasan; Cooray, Vernon; Rahman, Mahbubur; Dwyer, Joseph

Part of Atmosphere, 2017

• DOI for Energy Distribution of X-rays Produced by Meter-long Negative Discharges in Air

Features of the First and Subsequent Return Strokes in Positive Ground Flashes based on Electric Field Measurements

Johari, Dalina; Cooray, Vernon; Rahman, Mahbubur; Hettiarachchi, Pasan et al.

Part of Electric power systems research, p. 55-62, 2017

• DOI for Features of the First and Subsequent Return Strokes in Positive Ground Flashes based on Electric Field Measurements

X-rays from negative laboratory sparks in air: Influence of the anode geometry

Hettiarachchi, Pasan; Rahman, Mahbubur; Cooray, Vernon; Dwyer, Joseph

Part of Journal of Atmospheric and Solar-Terrestrial Physics, p. 190-194, 2017

• DOI for X-rays from negative laboratory sparks in air: Influence of the anode geometry

Characteristics of leader pulses in positive ground flashes in Sweden

Johari, Dalina; Cooray, Vernon; Rahman, Mahbubur; Hettiarachchi, Pasan et al.

Part of Electric power systems research, p. 3-9, 2017

• DOI for Characteristics of leader pulses in positive ground flashes in Sweden

On the occurrence of ‘bead lightning’ phenomena in long laboratory sparks

Vayanganie, S.P.A.; Cooray, Vernon; Rahman, Mahbubur; Hettiarachchi, Pasan et al.

Part of Physics Letters A, p. 816-821, 2016

• DOI for On the occurrence of ‘bead lightning’ phenomena in long laboratory sparks

On the characteristics of positive lightning ground flashes in Sweden

Baharudin, Zikri Abadi; Cooray, Vernon; Rahman, Mahbubur; Hettiarachchi, Pasan et al.

Part of Journal of Atmospheric and Solar-Terrestrial Physics, p. 106-111, 2016

• DOI for On the characteristics of positive lightning ground flashes in Sweden

Characteristics of preliminary breakdown pulses in positive ground flashes during summer thunderstorms in Sweden

Johari, Dalina; Cooray, Vernon; Rahman, Mahbubur; Hettiarachchi, Pasan et al.

Part of Atmosphere, 2016

• DOI for Characteristics of preliminary breakdown pulses in positive ground flashes during summer thunderstorms in Sweden
• Download full text (pdf) of Characteristics of preliminary breakdown pulses in positive ground flashes during summer thunderstorms in Sweden

Experimental study of leader tortuosity and velocity in long rod-plane air discharges

Diaz, Oscar; Hettiarachchi, Pasan; Rahman, Mahbubur; Cooray, Vernon et al.

Part of IEEE transactions on dielectrics and electrical insulation, p. 806-812, 2016

• DOI for Experimental study of leader tortuosity and velocity in long rod-plane air discharges

Latitude Dependence of Narrow Bipolar Pulse Emissions

Ahmad, Mohd Riduan; Mohd Esa, Mona Riza; Cooray, Vernon; Baharudin, Zikri Abadi et al.

Part of Journal of Atmospheric and Solar-Terrestrial Physics, p. 40-45, 2015

• DOI for Latitude Dependence of Narrow Bipolar Pulse Emissions

Electric field signatures in wideband, 3 MHz and 30 MHz of negative ground flashes pertinent to Swedish thunderstorms

Ismail, Mohd Muzafar; Rahman, Mahbubur; Cooray, Vernon; Sharma, Shriram et al.

Part of Atmosphere, p. 1904-1925, 2015

• DOI for Electric field signatures in wideband, 3 MHz and 30 MHz of negative ground flashes pertinent to Swedish thunderstorms
• Download full text (pdf) of Electric field signatures in wideband, 3 MHz and 30 MHz of negative ground flashes pertinent to Swedish thunderstorms

Basic electromagnetic theory - a summary

Cooray, Vernon; Hettiarachchi, Pasan; Cooray, Gerald

Part of Lightning Electromagnetics, The Institution of Engineering and Technology, 2012

• DOI for Basic electromagnetic theory - a summary

Measurements of X-Ray Emission from Laboratory Sparks and Upward Initiated Lightning

Hettiarachchi, Pasan

2018

• Download full text (pdf) of Measurements of X-Ray Emission from Laboratory Sparks and Upward Initiated Lightning

Attachment process of the discharge of competing grounded electrodes - Experimental observations and modeling

Arevalo, Liliana; Lobato, André; Cooray, Vernon; Hettiarachchi, Pasan et al.

Part of 2021 35th International Conference on Lightning Protection (ICLP) and XVI International Symposium On Lightning Protection (SIPDA), 2021

• DOI for Attachment process of the discharge of competing grounded electrodes - Experimental observations and modeling

Observations of X-rays in 4-meters long laboratory sparks under positive lightning impulse

Wooi, Chin-Leong; Hettiarachchi, Pasan; Rahman, Mahbubur; Cooray, Vernon et al.

Part of 2021 35TH INTERNATIONAL CONFERENCE ON LIGHTNING PROTECTION (ICLP) AND XVI INTERNATIONAL SYMPOSIUM ON LIGHTNING PROTECTION (SIPDA), 2021

• DOI for Observations of X-rays in 4-meters long laboratory sparks under positive lightning impulse

Time Domain Analysis of the Lightning Interaction with Wave Energy Converters

Hettiarachchi, Pasan; Lobato, André; Cooray, Vernon; Leijon, Mats

Part of 2018 34th international conference on lightning protection (ICLP 2018), 2018

Study on responses of SPDs against the transient voltages generated by CG flashes

Sapumanage, Nilantha; Nanayakkara, Sankha; Abeygunawardena, Sidath; Chandimal, Lasantha et al.

2018

The leader propagation velocity in long air gaps

Arevalo, Liliana; Wu, Dong; Hettiarachchi, Pasan; Cooray, Vernon et al.

Part of 2018 34th international conference on lightning protection (ICLP 2018), 2018

• DOI for The leader propagation velocity in long air gaps

Impedance Behavior of Earth Enhancing Compound Under Lightning Transient Conditions

Chandimal, A. P. L.; Hettiarachchi, Pasan; Nanayakkara, S.; Sapumanage, N. et al.

Part of 2018 34th international conference on lightning protection (ICLP 2018), 2018

Characteristics of chaotic pulse trains associated with dart and dart-stepped leader in lightning flashes in Sweden

Ismail, Muzafar M.; Rahman, Mahbubur; Cooray, Vernon; Hettiarachchi, Pasan et al.

2017

Some features of preliminary breakdown pulses in positive ground flashes in Sweden

Johari, Dalina; Cooray, Vernon; Rahman, Mahbubur; Hettiarachchi, Pasan et al.

2017

Wavelet transform reveals the origin of chaotic pulse train in lightning flashes

Ismail, Muzafar M.; Cooray, Vernon; Rahman, Mahbubur; Hettiarachchi, Pasan et al.

2017

The study of lightning strikes to common buildings in Brazil

Saba, Marcelo; Naccarato, Kleber; de Paiva, Amanda R; Schumann, Carina et al.

2016

Production of X-rays in air gaps stressed by switching impulse voltages

Rahman, Mahbubur; Hettiarachchi, Pasan; Cooray, Vernon; Dwyer, J. R. et al.

2016

Fractal analysis of long laboratory sparks of high speed video recordings

Vayanganie, Amila; Gunasekara, Lasitha; Fernando, Mahendra; Sonnadara, Upul et al.

2016

Some characteristics of subsequent return strokes in positive ground flash in Sweden

Johari, Dalina; Cooray, Vernon; Rahman, Mahbubur; Hettiarachchi, Pasan et al.

2016

On comparison between initial breakdown pulses and narrow bipolar pulses in lightning discharges with special attention to electric field derivative characteristics

Ismail, Muzafar; Cooray, Vernon; Rahman, Mahbubur; Hettiarachchi, Pasan et al.

2016

Special attention to impedance of conductivity enhancing backfill materials

Chandimal, APL; Hettiarachchi, Pasan; Nanayakkara, Sankha; Cooray, Vernon et al.

2016

Some characteristics of leader pulses in positive cloud-to-ground flashes

Johari, Dalina; Cooray, Vernon; Hettiarachchi, Pasan; Rahman, Mahbubur et al.

Part of 2015 International Symposium On Lightning Protection (Xiii SIPDA), p. 283-287, 2015

• DOI for Some characteristics of leader pulses in positive cloud-to-ground flashes

HF and VHF electric field radiation produced by preliminary breakdown process pertinent to Swedish thunderstorms

Ismail, M. M.; Sharma, S. R.; Cooray, Vernon; Hettiarachchi, P. et al.

Part of 2015 Asia-Pacific International Conference on Lightning (APL), Nagoya, Japan, 2015

On the possible origin of chaotic pulse trains in lightning flashes

Ismail, Muzafar M.; Cooray, Vernon; Hettiarachchi, Pasan; Rahman, Mahbubur et al.

Part of 2015 International Symposium on Lightning Protection (XIII SIPDA), Balneário Camboriú, Brazil, 28th Sept. – 2nd Oct. 2015., p. 409-412, 2015

X-rays from long laboratory sparks: Influence of the anode geometry

Hettiarachchi, Pasan; Rahman, Mahbubur; Cooray, Vernon

Part of International Conference on Atmospheric Electricity ICAE 2014, Norman, OK, U.S.A., 2014

Preliminary Observations of Lightning Signature At 2400 MHz in Sweden Thunderstorm

Ahmad, Mohd Riduan; Mohd Esa, Mona Riza Binti; Hettiarachchi, Pasan; Cooray, Vernon

p. 88-91, 2012

• DOI for Preliminary Observations of Lightning Signature At 2400 MHz in Sweden Thunderstorm

Electric Field Signature of Narrow Bipolar Pulse Observed in Sweden

Ahmad, Mohd Riduan; Mohd Esa, Mona Riza; Cooray, Vernon; Hettiarachchi, Pasan et al.

2014

Electric field changes generated by preliminary breakdown pulse for positive lightning ground flashes in Sweden

Baharudin, Zikri Abadi; Cooray, Vernon; Rahman, Mahbubur; Hettiarachchi, Pasan et al.