Publications

Journal Articles

2021

    1. S. N. A. Syed Zafar, R. Umar, S. N. Hazmin, M. H. Jusoh, A. N. Dagang, A. Yoshikawa. 2021. The Effects of Solar Flares and CMEs on Earth’s Horizontal Magnetic Field and Solar Wind Parameters During Minimum Solar Cycle of 24. Monthly Notices of the Royal Astronomical Society. Vol 504 (3), 3812-3822. doi:10.1093/mnras/stab1161 (ISI Q1 and Scopus Q1)

    2. Marhamah Shafie, Roslan Umar, Nor Hazmin Sabri. 2021. Statistical Analysis of Radio Frequency Interference (RFI) Caused by Solar Radiation During Wet and Dry. Malaysian Journal of Fundamental and Applied Sciences. Vol 17, 430-436. (Scopus Indexed Q4)

2020


  1. Noor Afiza Badaluddin, Seet Yong Yin, Roslan Umar, Nor Hazmin Sabri, Nurul Syafiqah Hasshim. 2020. Isolation and Characterization of High Ambient Electromagnetic Radiation (EMR) Bacteria. Malaysian Applied Biology. Vol 49(4), 165-172. (Scopus Indexed Q4) (Accepted)

  2. Dianah, A.R.S.N., Sabri, N.H., Jaafar, H., Umar, R., Ghazali, M.I.M. And Dagang, A.N. 2020. Public Health Sustainability: Performance Analysis Of Circular Patch Antenna For Non-Ionizing Radiation (NIR) Level Measurement. Journal of Sustainability Science and Management (JSSM). Vol 15(3), 1-10. (Scopus Indexed Q3)

  3. Nur Zulaikha Mohd Afandi, Nor Hazmin Sabri*, Roslan Umar, Christian Monstein. 2019. Burst Finder: Burst Recognition for E-CALLISTO Spectra. Indian Journal of Physics (INJP). Vol 94(7), 947–957. (In press-ISI Q3 and Scopus Indexed Q3)

2019

  1. A. N. Dagang, S. S. Sha’ari, R. Umar, N. H. Sabri. 2019. Multi-Function Adjustable Antenna Using Plasma Radiation for Weather Monitoring. International Journal of Recent Technology and Engineering (IJRTE). Vol 8(3), 5164-5170. (Scopus Indexed Q4)

  2. Sharifah Nurul Aisyah, Nor Hazmin Sabri*, Roslan Umar dan Zainol Abidin Ibrahim. 2019. Radio frequency interference on nearby radio astronomical lines: Relationship between wind speed and radio signal strength measured at east coast of peninsular Malaysia. Sains Malaysiana 48(1), 183–189 (ISI Q4 and Scopus Q2 Indexed)

  3. Roslan Umar*, Fatin Natasha Salehudin, Siti Nor Aminah Sedik, Kharunnisa Nabilah Juhari, Mohamad Huzaimy Jusoh, Nurul Syazana Abdul Hamid, Mohd Helmy Hashim, Zahira Mohd Radzi, Asnor Nadirah Ishak, Nor Hazmin Sabri, Wan Zul Adli Wan Mokhtar, Mohd Khairul Amri Kamarudin, Hafizan Juahir, Yoshikawa Akimasa. Magnetic Data Acquisition System (MAGDAS) Malaysia: Installation and Premilinary Data Analysis at ESERI, UNISZA. Indian Journal of Physics, 93(5), 553–564. (ISI Q3 and Scopus Q3 Indexed)

  4. Khairul Anwar Rosley, Nor Hazmin Sabri*, Nurul Syafiqah Hasshim, Roslan Umar, Roha Tukimin, Shamesh Raj A/L Parthasarathy. 2019. Non-Ionizing Radiation Measurement around Four Different Selected Areas. Indian Journal of Public Health Research & Development (IJHPRD). Vol 10(4), 829-833. (Scopus Indexed Q4)

  5. Nurul Syafiqah Hasshim, Roslan Umar*, Nor Hazmin Sabri, Khairul Anwar Rosley, Roha Tukimin, Shamesh Raj A/L Parthasarathy. 2019. Spatial Model of Non-Ionizing Radiation Exposure around Gong Badak. Indian Journal of Public Health Research & Development (IJHPRD). Vol 10(4), 811-816. (Scopus Indexed Q4)

2018

  1. Umar, S. N. Hazmin*, M. S. Marhamah, A. A. Aziz, M. A. N. Zulaikha, A. R. S. N. Dianah, M. Roshidah, M. T. Ali, N. H. Abd Rahman, A. N. Dagang, H. Jaafar, M. K. A Kamarudin, M. E. Toriman. 2018. Performance Analysis of Discone Antenna for Radio Frequency Interference (RFI) Measurement. International Journal of Engineering & Technology. Vol 7 (3.14) 333-336. (Scopus indexed)

  2. H. N. Syafiqah, S. N. Hazmin*, R. Umar, A. R. S. N. Dianah, H. Jaafar, M.K.A. Kamarudin, A. N. Dagang and A. I. A. Ilyas. Non-Ionizing Radiation: Exposure Level at UMT and UniSZA Campus. ASM Sc. J., Special Issue 2018(1), 183-194. (Scopus indexed)

  3. Roslan Umar*, Syed Mohd Hafiz Syed Omar, Nor Hazmin Sabri. Pendekatan Konsep Tabayyun dalam Isu Falak Kontemporari. BITARA International Journal of Civilizational Studies and Human Sciences. Vol 1, Issue 2, 127-134. (Others indexed)

  4. S.K.F. Syaza, H. Jaafar, R. Umar, S.N. Hazmin. 2018. Analysis of Circular Patch Antenna of 2-3GHz for Electromagnetic Applications. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), 10 (1-5), 51-53. (Scopus indexed)

  5. S. N. Hazmin, A. R. S. N. Dianah, R. Umar, A. N. Dagang, M. K. A. Kamarudin and H. Jaafar. 2018. Non-Ionizing Radiation Exposure: Electric Field Strength Measurement around Selected Base Stations in Kuala Nerus. Journal of Fundamental and Applied Sciences, 10 (1S), 52-65. (Others indexed)

  6. A. R. S. N. Dianah, S. N. Hazmin, R. Umar, H. Jaafar, M. K. A. Kamarudin, A. N. Dagang, H. N. Syafiqah. 2018. Spatial Model of Public Non-Ionizing Radiation Exposure on Selected Base Station around Kuala Nerus. Journal of Fundamental and Applied Sciences, 10 (1S), 523-540. (Others indexed)

  7. N.Z.M. Afandi, S.N.Hazmin, R. Umar, A.N.Ishak. 2018. Automated Solar Radio Burst Detection On Radio Spectrum: A Review Of Techniques In Image Processing. Journal of Fundamental and Applied Sciences, 10 (1S), 249-267 (Others indexed)

  8. S. N. A. Syed Zafar, S. N. Hazmin, R. Mat, M. S. Marhamah and Roslan Umar. 2018. Wind Speed on Ultra High Frequency (UHF) Of Radio Signal. Journal of Fundamental and Applied Sciences, 10 (1S), 278-287 (Others indexed)

  9. M.S. Marhamah, R. Umar, S. N. Hazmin, S. N. A. S. Zafar and R. Mat. 2018. The Influence of Solar Radiation on Radio Signal At UHF Band. Journal of Fundamental and Applied Sciences, 10 (1S), 268-277. (Others indexed)

2017

  1. A.R.S.N. Dianah, R. Umar, M.K.A. Kamarudin, A.N. Dagang & S.N. Hazmin. 2017. Exposure Level from Selected Base Station Tower Around Kuala Nerus: A Preliminary Analysis Journal of Fundamental and Applied Sciences, 9 (5S), 367-380. (WoS (ESCI) indexed)

  2. R. Umar, Z.Z. Abidin, Z.A. Ibrahim, M.K.A. Kamarudin, S.N. Hazmin, A. Endut, H. Juahir. 2017. Multi-Criteria Decision Analysis Integrated With GIS For Radio Astronomical Observatory Site Selection In Peninsular Of Malaysia. Journal of Fundamental and Applied Sciences, 9 (5S), 381-393. (WoS (ESCI) indexed)

  3. Sharifah Nurul Aisyah Syed Zafar, Nor Hazmin Sabri , Zainol Abidin Ibrahim , Mohd Khairul Amri Kamarudin and Roslan Umar. 2017. Spectrum Monitoring: Radio Frequency Interferences (RFI) Profile For Hydroxyl (OH) Lines Window. Journal of Fundamental and Applied Sciences, 9(2S), 147-156 (WoS (ESCI) indexed)

  4. Siti Nur Dianah Abdul Rahman, Nor Hazmin Sabri, Roslan Umar, Mohd Khairul Amri Kamarudin, Ahmad Nazri Dagang. 2017. A Review On Electromagnetics (EM) Exposure Measurement Technique From Base Station. Journal of Fundamental and Applied Sciences, 9(2S), 182-198. (WoS (ESCI) indexed)

  5. Fatin Syaza Syariff Khan, Roslan Umar, Nor Hazmin Sabri, Mohd Khairul Amri Kamarudin, Azmi Hassan, Hafizan Juahir, 2017. Non-ionizing Radiation as Threat in Daily Life. Journal of Fundamental and Applied Sciences, 9(2S), 308-316. (WoS (ESCI) indexed)

  6. Sharifah Nurul Aisyah Syed Zafar, Roslan Umar, Nor Hazmin Sabri, Zainol Abidin Ibrahim, Mohd Khairul Amri Kamarudin & Azizah Endut. 2017. Determination of Radio Environmental Level in Hydrogen (HI) Band Spectrum by Using Kurtosis Analysis. International Journal on Advanced Science, Engineering and Information Technology, 7(3) 1069-1075 (Scopus indexed)

  7. Nur Zulaikha Mohd Afandi, Roslan Umar, Zainol Abidin Ibrahim, Nor Hazmin Sabri, Marhamah Mohd Shafie. 2017. Influence of Partial Solar Eclipse on The Radio Signal during 9 March 2016. International Journal on Advanced Science, Engineering and Information Technology, 7(2) 688-694 (Scopus indexed)

  8. Mohd Redzuan Tahar, Farahana Kamarudin, Roslan Umar, Mohd Khairul Amri Kamarudin, Nor Hazmin Sabri, Karzaman Ahmad, Sobri Abdul Rahim and Mohd Sharul Aikal Baharim . 2017. Spatial Model of Sky Brightness Magnitude in Langkawi Island, Malaysia. Research in Astronomy and Astrophysics, 17(4) 37(10pp) (WoS (ISI) and Scopus indexed)

  9. Nor Hazmin Sabri, Roslan Umar, Marhamah Mohd Shafie, Sharifah Nurul Aisyah Syed Zafar, Roshidah Mat, Sabri Ahmad, Zainol Abidin Ibrahim, (2017), Correlation Analysis of Tropical Rainforest Climate Effect on Radio Signal Strength at KUSZA Observatory, Terengganu, Advanced Science Letters, Vol 23(2), 1268-1271. (Scopus indexed)

  10. Nur Zulaikha Mohd Afandi, Roslan Umar, Nor Hazmin Sabri, Zamri Zainal Abidin, Zainol Abidin Ibrahim, Asnor Nadirah Ishak, Zulia Kurnia Dewi Nurlisman, Christian Monstein, (2017), Identification of Solar Radio Burst Type II and Type III for Space Weather Monitoring, Advanced Science Letters, Vol 23(2), 1281-1284. (Scopus indexed)

2016

  1. Roshidah Mat, Marhamah Mohd Shafie, Sabri Ahmad, Roslan Umar, Yew Been Seok, Nor Hazmin Sabri, (2016), Temperature Effect on the Tropospheric Radio Signal Strength for UHF Band at Terengganu, Malaysia, International Journal on Advanced Science, Engineering and Information Technology, Vol 6(5), 770-774. (Scopus indexed)

  2. Nur Zulaikha Mohd Afandi, Zamri Zainal Abidin, Roslan Umar, Nor Hazmin Sabri, Zainol Abidin Ibrahim, Christian Monstein, (2016), Implementation of Frequency Drift for Identification of Solar Radio Burst Type II, International Journal on Advanced Science, Engineering and Information Technology, Vol 6(5), 775-780. (Scopus indexed)

2015

  1. Roslan Umar, Sabri Nor Hazmin, Zamri Zainal Abidin, and Zainol Abidin Ibrahim. (2015). How To Deal With Radio Astronomy Interference. Publications of The korean Astronomical Society, Vol 30, 691-693.

  2. Nor Hazmin Sabri, Atiq Wahidah Azlan, Roslan Umar, Shahirah Syafa Sulan, Zainol Abidin Ibrahim, Wan Zul Adli Wan Mokhtar. (2015). The Effect Of Solar Radiation On Radio Signal For Radioastronomy Purposes, Malaysian Journal of Analytical Sciences, Vol 19 (5) (Scopus indexed)

  3. Nor Hazmin Sabri, Sharifah Nurul Aisyah Syed Zafar, Roslan Umar, Wan Zul Adli Wan Mokhtar. (2015). Radio Frequency Interference: The Effect Of Ambient Carbon Dioxide (CO2) Concentration On Radio Signal For Radio Astronomy Purposes, Malaysian Journal of Analytical Sciences, Vol 19 (5) (Scopus indexed)

  4. Roslan Umar, Shahirah Syafa Sulan, Atiq Wahidah Azlan,Zainol Abidin Ibrahim, Wan Zul Adli Wan Mokhtar, Nor Hazmin Sabri. (2015). Radio Frequency Interference: The Study Of Rain Effect On Radio Signal Attenuation, Malaysian Journal of Analytical Sciences, Vol 19 (5) (Scopus indexed)

  5. Roslan Umar, Nor Hazmin Sabri, Zainol Abidin Ibrahim, Zamri Zainal Abidin, Asyaari Muhamad. (2015). Measurement Technique In Radio Frequency Interference (RFI) Study For Radio Astronomy Purposes, Malaysian Journal of Analytical Sciences, Vol 19 (5) (Scopus indexed)

  6. Roslan Umar, Nor Hazmin Sabri, Zamri Zainal Abidin, Zainol Abidin Ibrahim, Azman Azid, Hafizan Juahir, Mohd Ekhwan Toriman and Mohd Khairul Amri Kamaruddin, (2015), Preliminary Study of Radio Astronomical Lines Effect of Rain Below 2.9 GHz, Jurnal Teknologi, Vol 75(1) : 7-11 (Scopus indexed)

  7. Nor Hazmin Sabri, Roslan Umar, Wan Zul Adli Wan Mokhtar, Zamri Zainal Abidin, Zainol Abidin Ibrahim, Azman Azid, Hafizan Juahir, Mohd Ekhwan Toriman and Mohd Khairul Amri Kamaruddin, (2015), Preliminary study of Vehicular Traffic Effect on Radio Signal for Radio Astronomy Purposes, Jurnal Teknologi, Vol 75(1) : 313-318 (Scopus indexed)

  8. Roslan Umar, Mat Jusoh, Ahmad Jazlan, Mohd Nawawi, Mohd Saiful Anwar, (2015)

  9. Roslan Umar, Nor Hazmin Sabri, Zainol Abidin Ibrahim, Zamri Zainal Abidin, Asyaari Muhamad, (2015), Teknik pengukuran dalam kajian gangguan interferen radio (RFI) bagi tujuan astronomi radio, Malaysian Journal of Analytical Sciences, Vol 19(5) :960-965 (Scopus indexed)

2014

  1. Roslan Umar, Abidin, Zainol Abidin Ibrahim, Z. A., Rosli, Z., & Noorazlan, N, (2014). Selection of radio astronomical observation sites and its dependence on human generated RFI, Research in Astronomy and Astrophysics Vol 14(2) :241 (WoS(ISI) and Scopus indexed)

  2. Roslan Umar, Zamri Zainal Abidin, Zainol Abidin Ibrahim, (2014), The importance of site selection for radio astronomy, In Journal of Physics: Conference Series, Vol. 539 (1) : 012009 (Scopus indexed)

Proceedings

2021

  1. R. Umar, S. N. A. Syed Zafar, N. H. Sabri, M. H. Jusoh, A. Yoshikawa, S. Abe, T. Uozumi. 2021. Earth’s geomagnetic response to solar wind changes associated with solar events at low latitude regions at the TRE MAGDAS Station. IOP Conf. Series: Earth and Environmental Science 880 012009. (WoS ESCI and Scopus Q3 indexed)

  2. S. N. A. Syed Zafar, R. Umar, N. H. Sabri, M. H. Jusoh, A. Yoshikawa, S. Abe, T. Uozumi. 2021. A statistical analysis of the relationship between Pc4 and Pc5 ULF waves, solar winds and geomagnetic storms for predicting earthquake precursor signatures in low latitude regions. IOP Conf. Series: Earth and Environmental Science 880 012009. (WoS ESCI and Scopus Q3 indexed)

  3. S N A Syed Zafar, S N Hazmin, M H Jusoh, A N Dagang, M A M Adzni and R Umar. 2021. Behaviour of Geomagnetic storm, horizontal geomagnetic field and solar wind parameters during solar flare and CMEs event. Journal of Physics: IOP Conf. Series 1768 (2021) 012003. (WoS ESCI and Scopus Q3 indexed)

2020

  1. Roshidah Mat, Nor Hazmin Sabri, Roslan Umar, Sabri Ahmad, Sharifah Nurul Aisyah Syed Zafar, Azman Omar, Wan Azani Mustafa. 2020. Effect of Humidity on Tropospheric Received Signal Strength (RSS) in Ultra-High Frequency (UHF) Band. Journal of Physics: IOP Conf. Series 1529 (2020) 042048. (WoS ESCI and Scopus Q3 indexed)

  2. Roshidah Mat, Nor Hazmin Sabri, Roslan Umar, Sabri Ahmad, Azman Omar. 2020. Statistical Analysis Of Environmental Factors Affecting The UHF Radio Signals Quality In Terengganu. Proceeding of the ICTE’20: International Conference Teacher Education (Vol I). Kelantan. eISBN:978-967-14697-9-8


2019

  1. Nor Hazmin Sabri, Sharifah Nurul Aisyah Syed Zafar, Roslan Umar and Roshidah Mat. 2019. Northeast Monsoon Effect on Ultra High Frequency (UHF) Signal Attenuation at Kusza. Journal of Physics: IOP Conf. Series 1152 (2019) 012009. (Scopus indexed)

  2. Asnor Nadirah Ishak, Nur Zulaikha Mohd Afandi, Roslan Umar, Nor Hazmin Sabri, Zahira Mohd Radzi, Asnor Juraiza Ishak, Radial Anwar. 2019. Solar Radio Burst in National Space Agency of Malaysia (ANGKASA). Journal of Physics: IOP Conf. Series 1152 (2019) 012005. (Scopus indexed)

2018

  1. Roslan Umar*, Syed Mohd Hafiz Syed Omar, Hafizan Juahir, Nor Hazmin Sabri, Nurul Syafiqah Hasshim, Siti Nur Dianah Abdul Rahman. i- Tabayyun:Semakan Isu Tular Berkaitan Falak Kontemporari Menerusi Aplikasi Telefon Pintar. Proceedings Of The International University Carnival On E-Learning (Iucel) 2018. ISBN: 9789672027843

  2. A R S N Dianah, S N Hazmin*, H N Syafiqah, M K A Kamarudin, R Umar. 2018. Relationship between Non-Ionizing Radiation (NIR) Exposure Level and the Base Station Tower Installation around Kuala Nerus. Proceeding of International Fundamentum Science Symposium. IOP Conference Series: Materials Science and Engineering. 440 (2018) 012040. (Scopus indexed)

  3. R Mat, S N Hazmin*, R Umar, S Ahmad, S N A S Zafar and M S Marhamah. 2018. The Modelling of Tropical Weather Effects on Ultra-High Frequency (UHF) Radio Signals Using SmartPLS. Proceeding of International Fundamentum Science Symposium. IOP Conference Series: Materials Science and Engineering. 440 (2018) 012041. (Scopus indexed)

  4. S.N. Hazmin, A.R.S.N. Dianah, M.K.A. Kamarudin, R. Umar*, and H.N. Syafiqah. Non-Ionizing Radiation (NIR) Exposure Map Development Using GIS for Gong Badak, Terengganu, Malaysia. 2018. Proceeding of 4th Engineering Science and Technology International Conference. MATEC Web of Conferences. 248, 05001 pp1-5. (Scopus indexed)

  5. Roshidah Mat, Nor Hazmin Sabri, Roslan Umar, Sabri Ahmad, Marhamah Mohd Shafie & Sharifah Nurul Aisyah Syed Zafar. 2018. Impact Of Weather Predictors On Signals Transmission In Communication : A Statistical Modelling Approach Using SmartPLS. Proceeding of Seminar PdPc Abad ke-21 dan Karnival Inovasi Peringkat Kebangsaan 2018. Terengganu. ISBN: 978-967-15992-02-04

2016

  1. Asnor Nadirah Ishak, Zulia Kurnia Dewi Nurlisman, Roslan Umar, Nor Hazmin Sabri, Zety Sharizat Hamidi, Nur Zulaikha Mohd Afandi, Marhamah Mohd Shafie, Christian Monstein. Preliminary Analysis Of Radio Frequency Interference (RFI) Using Callisto At Banting, Selangor, Malaysia. Proceeding of 4th International Conference on Researches in Science and Technology (ICRST). MATTER: International Journal of Science and Technology. ISSN: 2454-5880

Books

2016

  1. BANJIR: Kupasan pelbagai perspektif. 2016. Editor: Mohd Ekhwan Toriman, Mohd Khairul Amri Kamarudin, Hafizan Juahir, Muhammad Barzani Gasim, Azizah Endut, Azman Azid, Roslan Umar. ISBN: 978-967-0899-14-5. Penerbit UniSZA.

Chapter in Book

2021

  1. Chapter 4: Konsep tabayyun dalam isu berkaitan falak: Analisis menurut nas dan teori sains. 2021. Judul Buku: Islam dan Kelestarian Alam. Penulis: Roslan Umar, Nor Hazmin Sabri, Syed Mohd Hafiz Syed Omar & Mohammad Badrul Hafiz Nasri. Editor: Riswadi Azmi, Nor Hazmin Sabri, Rodiah Mustafa. Penerbit UMT. ISBN 9789672939344