-
1Conference
مصطلحات موضوعية: TE Highway engineering. Roads and pavements, TE250 Pavement and paved roads
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/115112/7/115112_Chemical%20characterization.pdf; http://irep.iium.edu.my/115112/8/115112_Chemical%20characterization_Scopus.pdf; Norazni, N S A and Kamaruddin, N H M and Yunus, K N M and Poharan, A and Wan Azahar, Wan Nur Aifa (2024) Chemical characterization of asphalt binder containing palm oil mill sludge. In: 7th International Conference on Civil Engineering and Environmental Engineering for Sustainability, 9-10 August 2023, Impiana KLCC Hotel, Kuala Lumpur.
-
2Academic Journal
المؤلفون: Kasim, Norhidayu, Wan Azahar, Wan Nur Aifa
مصطلحات موضوعية: TE Highway engineering. Roads and pavements, TE250 Pavement and paved roads
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/116134/6/116134_Pastikan%20sistem%20saliran%20berfungsi.pdf; Kasim, Norhidayu and Wan Azahar, Wan Nur Aifa (2024) Pastikan sistem saliran berfungsi elak banjir jejas infrastruktur jalan raya. Berita Harian. p. 12.
-
3Academic Journal
مصطلحات موضوعية: TE Highway engineering. Roads and pavements, TE250 Pavement and paved roads
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/110079/7/110079_Comparison%20of%20the%20mechanical%20performance.pdf; http://irep.iium.edu.my/110079/13/110079_Comparison%20of%20the%20mechanical%20performance_SCOPUS.pdf; Esa, Noor Yusriah and Wan Azahar, Wan Nur Aifa and Kasim, Norhidayu and Basri, Nur Khairiyah (2024) Comparison of the mechanical performance of dense grading and porous grading mixture utilized with crumb rubber modified binder. IIUM Engineering Journal, 25 (1). pp. 128-141. ISSN 1511-788X E-ISSN 2289-7860
الاتاحة: http://irep.iium.edu.my/110079/
http://irep.iium.edu.my/110079/7/110079_Comparison%20of%20the%20mechanical%20performance.pdf
http://irep.iium.edu.my/110079/13/110079_Comparison%20of%20the%20mechanical%20performance_SCOPUS.pdf
https://journals.iium.edu.my/ejournal/index.php/iiumej/article/view/2969/969 -
4Academic Journal
المؤلفون: Bujang, Mastura, Bakie, Nisa ‘Aqila, Bujang, Ummi Humaira, Lee, Siaw Kian, Anak Jusli, Euniza, Wan Azahar, Wan Nur Aifa
مصطلحات موضوعية: TE Highway engineering. Roads and pavements, TE250 Pavement and paved roads
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/105693/1/JKUKM%2035%284%29%202023%20Artikel%2013.pdf; Bujang, Mastura and Bakie, Nisa ‘Aqila and Bujang, Ummi Humaira and Lee, Siaw Kian and Anak Jusli, Euniza and Wan Azahar, Wan Nur Aifa (2023) Characteristics of oil palm fruit ash as binder in asphaltic concrete. Jurnal Kejuruteraan UKM, 35 (4). pp. 913-921. ISSN 0128-0198 E-ISSN 2289-7526
-
5Academic Journal
المؤلفون: Safaeldeen, Gailan Ismat, Al-Mansob, Ramez, Al-Sabaeei, Abdulnaser, Yusoff, Nur Izzi, Ismail, Amiruddin, Wah, Yen Tey, Wan Azahar, Wan Nur Aifa, Ibrahim, Ahmad Nazrul Hakimi, Jassam, Taha M.
مصطلحات موضوعية: TA Engineering (General). Civil engineering (General), TE Highway engineering. Roads and pavements
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/101224/1/101224_Investigating%20the%20mechanical%20properties.pdf; http://irep.iium.edu.my/101224/7/Investigating%20the%20Mechanical%20Properties%20and%20Durability%20of%20Asphalt%20Mixture%20_scopus_new.pdf; http://irep.iium.edu.my/101224/8/Investigating%20the%20Mechanical%20Properties%20and%20Durability%20of%20Asphalt%20_wos_new.pdf; Safaeldeen, Gailan Ismat and Al-Mansob, Ramez and Al-Sabaeei, Abdulnaser and Yusoff, Nur Izzi and Ismail, Amiruddin and Wah, Yen Tey and Wan Azahar, Wan Nur Aifa and Ibrahim, Ahmad Nazrul Hakimi and Jassam, Taha M. (2022) Investigating the mechanical properties and durability of Asphalt mixture modified with Epoxidized Natural Rubber (ENR) under short and long-term aging conditions. Polymers, 14 (21). E-ISSN 2073-4360
الاتاحة: http://irep.iium.edu.my/101224/
http://irep.iium.edu.my/101224/1/101224_Investigating%20the%20mechanical%20properties.pdf
http://irep.iium.edu.my/101224/7/Investigating%20the%20Mechanical%20Properties%20and%20Durability%20of%20Asphalt%20Mixture%20_scopus_new.pdf
http://irep.iium.edu.my/101224/8/Investigating%20the%20Mechanical%20Properties%20and%20Durability%20of%20Asphalt%20_wos_new.pdf -
6Academic Journal
المؤلفون: Saparudin, Nurain Asrin, Kasim, Norhidayu, Abu Taib, Kamarudin, Wan Azahar, Wan Nur Aifa, Kasim, Nur Aisyah, Ali, Maisarah
مصطلحات موضوعية: TA1001 Transportation engineering (General), TA170 Environmental engineering. Sustainable engineering, TA401 Materials of engineering and construction, TA705 Engineering geology. Rock mechanics. Soil mechanics, TA715 Earthwork. Foundations
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/99598/1/99598_Improvement%20of%20problematic%20soil.pdf; http://irep.iium.edu.my/99598/7/Improvement%20of%20problematic%20soil%20using_scopus.pdf; http://irep.iium.edu.my/99598/8/Improvement%20of%20problematic%20soil%20using%20_wos.pdf; Saparudin, Nurain Asrin and Kasim, Norhidayu and Abu Taib, Kamarudin and Wan Azahar, Wan Nur Aifa and Kasim, Nur Aisyah and Ali, Maisarah (2022) Improvement of problematic soil using crumb rubber tyre. IIUM Engineering Journal, 23 (2). pp. 72-84. ISSN 1511-788X E-ISSN 2289-7860
الاتاحة: http://irep.iium.edu.my/99598/
http://irep.iium.edu.my/99598/1/99598_Improvement%20of%20problematic%20soil.pdf
http://irep.iium.edu.my/99598/7/Improvement%20of%20problematic%20soil%20using_scopus.pdf
http://irep.iium.edu.my/99598/8/Improvement%20of%20problematic%20soil%20using%20_wos.pdf
https://journals.iium.edu.my/ejournal/index.php/iiumej/article/view/2293/881 -
7Academic Journal
المؤلفون: Abdul Ghani, Nur Aina Farahana, Ismail, Norfarah Nadia, Wan Azahar, Wan Nur Aifa, Abd Rahman, Faridah, Wong Azman, Amelia
مصطلحات موضوعية: TE Highway engineering. Roads and pavements, TE210 Construction details. Including foundation, maintenance, equipment, TE250 Pavement and paved roads
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/99581/7/99581_Affirmation%20of%20elastic%20modulus%20derived.pdf; Abdul Ghani, Nur Aina Farahana and Ismail, Norfarah Nadia and Wan Azahar, Wan Nur Aifa and Abd Rahman, Faridah and Wong Azman, Amelia (2022) Affirmation of elastic modulus derived from spectral analysis of surface waves method using artificial neural network. Jurnal Kejuruteraan, 34 (5). pp. 905-913. ISSN 0128-0198 E-ISSN 2289-7526
-
8Academic Journal
المؤلفون: Abdul Ghani, Nur Aina Farahana, Ismail, Norfarah Nadia, Wan Azahar, Wan Nur Aifa, Abd Rahman, Faridah, W. Azman, Amelia, Md. Yusoff, Nur Izzi, P. Rosyidi, Sri Atmaja
مصطلحات موضوعية: TE Highway engineering. Roads and pavements, TE210 Construction details. Including foundation, maintenance, equipment, TE250 Pavement and paved roads
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/97148/13/97148_Classification%20of%20Rigid%20Pavement%20at%20Airport%20Taxiway%20using.pdf; http://irep.iium.edu.my/97148/7/97148_Classification%20of%20rigid%20pavement%20at%20airport%20taxiway%20_Scopus.pdf; Abdul Ghani, Nur Aina Farahana and Ismail, Norfarah Nadia and Wan Azahar, Wan Nur Aifa and Abd Rahman, Faridah and W. Azman, Amelia and Md. Yusoff, Nur Izzi and P. Rosyidi, Sri Atmaja (2022) Classification of rigid pavement at airport taxiway using shear wave velocity and Elastic Modulus derived from Spectral Analysis of Surface Waves (SASW) method. Journal of Failure Analysis and Prevention. ISSN 1547-7029 (In Press)
الاتاحة: http://irep.iium.edu.my/97148/
http://irep.iium.edu.my/97148/13/97148_Classification%20of%20Rigid%20Pavement%20at%20Airport%20Taxiway%20using.pdf
http://irep.iium.edu.my/97148/7/97148_Classification%20of%20rigid%20pavement%20at%20airport%20taxiway%20_Scopus.pdf
https://doi.org/10.1007/s11668-021-01301-9 -
9Conference
المؤلفون: Nadimalla, Altamashuddinkhan, Masjuki, Siti Aliyyah, Saad, Siti Asmahani, Ali, Maisarah, Md Husain, Nadiah, Wan Azahar, Wan Nur Aifa, Kasim, Norhidayu
مصطلحات موضوعية: TA Engineering (General). Civil engineering (General), TA401 Materials of engineering and construction
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/94490/1/94490_Correlation%20between%20slump,%20VeBe%20and%20compaction%20factor%20of%20concrete.pdf; Nadimalla, Altamashuddinkhan and Masjuki, Siti Aliyyah and Saad, Siti Asmahani and Ali, Maisarah and Md Husain, Nadiah and Wan Azahar, Wan Nur Aifa and Kasim, Norhidayu (2021) Correlation between slump, VeBe and compaction factor of concrete containing shredded PET bottles, manufactured sand (M-sand) and river sand as fine aggregate. In: 5th International Conference on Advanced Technology and Applied Sciences and 6th Malaysia Japan Joint International Conference (ICETAS MJJIC 2020), 7-8 October 2020, Kuala Lumpur, Malaysia.
-
10Conference
المؤلفون: Kasim, Norhidayu, Abu Taib, K, Maturidi, A M A M, Wan Azahar, Wan Nur Aifa, Masjuki, Siti Aliyyah
مصطلحات موضوعية: TA Engineering (General). Civil engineering (General), TA170 Environmental engineering. Sustainable engineering, TA495 Disasters and engineering, TD169 Environmental protection
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/92248/1/92248_Debris%20Flow%20Numerical%20Simulation%20Model.pdf; Kasim, Norhidayu and Abu Taib, K and Maturidi, A M A M and Wan Azahar, Wan Nur Aifa and Masjuki, Siti Aliyyah (2021) Debris Flow Numerical Simulation Model Comparison with Field Events in Kuala Kubu Baru and Lentang, Malaysia. In: The 5th International Conference on Advanced Technology and Applied Sciences (ICATAS) 2020, Virtual.
-
11Conference
المؤلفون: Abdul Hassan, Norhidayah, Ismail, Che Ros, Al-Saffar, Zaid Hazim, Putra Jaya, Ramadhansyah, Masri, Khairil Azman, Muzamir, H, Wan Azahar, Wan Nur Aifa
مصطلحات موضوعية: TE Highway engineering. Roads and pavements, TE250 Pavement and paved roads
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/89104/7/89104_The%20influence%20of%20nano%20kaolin%20clay%20as%20alternative%20binder%20on%20the%20penetration%20properties.pdf; http://irep.iium.edu.my/89104/8/89104_The%20influence%20of%20nano%20kaolin%20clay%20as%20alternative%20binder%20on%20the_SCOPUS.pdf; Abdul Hassan, Norhidayah and Ismail, Che Ros and Al-Saffar, Zaid Hazim and Putra Jaya, Ramadhansyah and Masri, Khairil Azman and Muzamir, H and Wan Azahar, Wan Nur Aifa (2021) The influence of nano kaolin clay as alternative binder on the penetration properties. In: 4th National Conference on Wind & Earthquake Engineering, 16 - 17 October 2020, PAHANG.
الاتاحة: http://irep.iium.edu.my/89104/
http://irep.iium.edu.my/89104/7/89104_The%20influence%20of%20nano%20kaolin%20clay%20as%20alternative%20binder%20on%20the%20penetration%20properties.pdf
http://irep.iium.edu.my/89104/8/89104_The%20influence%20of%20nano%20kaolin%20clay%20as%20alternative%20binder%20on%20the_SCOPUS.pdf
https://iopscience.iop.org/article/10.1088/1755-1315/682/1/012063/pdf -
12Conference
المؤلفون: Kharuddin, Farah Salwana, Wan Azahar, Wan Nur Aifa, Putra Jaya, Ramadhansyah, Hainin, Mohd Rosli, Mohamed Jaafar, Zul Fahmi
مصطلحات موضوعية: TE250 Pavement and paved roads
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/89102/7/89102_Performance%20of%20asphaltic%20concrete%20modified%20with%20recycled%20crushed%20bricks.pdf; http://irep.iium.edu.my/89102/8/89102_Performance%20of%20asphaltic%20concrete%20modified%20with%20recycled_SCOPUS.pdf; Kharuddin, Farah Salwana and Wan Azahar, Wan Nur Aifa and Putra Jaya, Ramadhansyah and Hainin, Mohd Rosli and Mohamed Jaafar, Zul Fahmi (2021) Performance of asphaltic concrete modified with recycled crushed bricks. In: 4th National Conference on Wind & Earthquake Engineering, 16-17 Oct 2020, Pahang.
الاتاحة: http://irep.iium.edu.my/89102/
http://irep.iium.edu.my/89102/7/89102_Performance%20of%20asphaltic%20concrete%20modified%20with%20recycled%20crushed%20bricks.pdf
http://irep.iium.edu.my/89102/8/89102_Performance%20of%20asphaltic%20concrete%20modified%20with%20recycled_SCOPUS.pdf
https://iopscience.iop.org/article/10.1088/1755-1315/682/1/012061/pdf -
13Book
المؤلفون: Kasim, Norhidayu, Abu Taib, Kamaruddin, Ghazali, N.A.A., Wan Azahar, Wan Nur Aifa, Ismail, Norfarah Nadia, Md. Husain, Nadiah, Ramli, Ahmad Bukhari, Saad, Siti Asmahani, Masjuki, Siti Aliyyah, Ibrahim, Saerahany Legori
مصطلحات موضوعية: TC401 River, lake, and water-supply engineering (General), envir, geo
Relation: http://irep.iium.edu.my/79296/7/79296%20%20Rainfall%20Intensity.pdf; http://irep.iium.edu.my/79296/8/79296%20%20Rainfall%20Intensity%20SCOPUS.pdf; http://irep.iium.edu.my/79296/
-
14Conference
المؤلفون: Abu Mansor Maturidi, Abdul Muaz, Kasim, Norhidayu, Abu Taib, Kamarudin, Binti Wan Azahar, Wan Nur Aifa, Md. Husain, Nadiah
مصطلحات موضوعية: TD Environmental technology. Sanitary engineering, manag, envir
Relation: http://irep.iium.edu.my/87849/1/87849_Rainfall-Induced%20Landslides%20in%20Cameron%20Highland%20Area.pdf; http://irep.iium.edu.my/87849/2/87849_Rainfall-Induced%20Landslides%20in%20Cameron%20Highland%20Area%20SCOPUS.pdf; http://irep.iium.edu.my/87849/
-
15Book
المؤلفون: Jusli, Euniza, Md. Nor, Hasanan, Putra Jaya, Ramadhansyah, Haron, Zaiton, Bujang, Mastura, Wan Azahar, Wan Nur Aifa
المساهمون: Affam, Augustine Chioma, Ezechi, Ezerie Henry
مصطلحات موضوعية: TE Highway engineering. Roads and pavements, TE250 Pavement and paved roads
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/110115/1/Waste-Tyre-Rubber-Application-in-Semi-Rigid-and-Flexible-Pavement.pdf; http://irep.iium.edu.my/110115/7/cover%20page.pdf; http://irep.iium.edu.my/110115/8/Waste%20tyre%20rubber%20application%20in%20semi-rigid%20and%20flexible%20pavement-Scopus.pdf; Jusli, Euniza and Md. Nor, Hasanan and Putra Jaya, Ramadhansyah and Haron, Zaiton and Bujang, Mastura and Wan Azahar, Wan Nur Aifa (2020) Waste tyre rubber application in semi-rigid and flexible pavement. In: Handbook of Research on Resource Management for Pollution and Waste Treatment. IGI Global, pp. 1-21. ISBN 9781799803690
-
16Book
المؤلفون: Bujang, Mastura, Wan Azahar, Wan Nur Aifa, Jusli, Euniza
المساهمون: Affam, Augustine Chioma, Ezechi, Ezerie Henry
مصطلحات موضوعية: TE Highway engineering. Roads and pavements, TE250 Pavement and paved roads
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/110112/1/Utilization-of-Waste-Cooking-Oil-%28WCO%29-in-Hot-Mix-Asphalt-%28HMA%29.pdf; http://irep.iium.edu.my/110112/7/cover%20page.pdf; http://irep.iium.edu.my/110112/8/Utilization%20of%20Waste%20Cooking%20Oil%20%28WCO%29%20in%20Hot%20Mix%20Asphalt%20%28HMA%29_scopus.pdf; Bujang, Mastura and Wan Azahar, Wan Nur Aifa and Jusli, Euniza (2020) Utilization of waste cooking oil (WCO) in Hot Mix Asphalt (HMA). In: Handbook of Research on Resource Management for Pollution and Waste Treatment. IGI Global, pp. 22-46. ISBN 9781799803690
-
17Book
المؤلفون: Wan Azahar, Wan Nur Aifa, Putra Jaya, Ramadhansyah, Kasim, Norhidayu, Ismail, Norfarah Nadia, Md Husain, Nadiah, Saad, Siti Asmahani, Masjuki, Siti Aliyyah, Ibrahim, Saerahany Legori, Ramli, Ahmad Bukhari, Basri, Nur Khairiyah
مصطلحات موضوعية: TA Engineering (General). Civil engineering (General)
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/79127/7/79127%20Investigation%20on%20compatibility%20property.pdf; http://irep.iium.edu.my/79127/8/79127%20Investigation%20on%20compatibility%20property%20SCOPUS.pdf; Wan Azahar, Wan Nur Aifa and Putra Jaya, Ramadhansyah and Kasim, Norhidayu and Ismail, Norfarah Nadia and Md Husain, Nadiah and Saad, Siti Asmahani and Masjuki, Siti Aliyyah and Ibrahim, Saerahany Legori and Ramli, Ahmad Bukhari and Basri, Nur Khairiyah (2020) Investigation on compatibility property between aggregates and bitumen modified with untreated and treated waste cooking oil. In: Proceedings of AICCE'19. Lecture Notes in Civil Engineering (53). Springer International Publishing, pp. 933-942. ISBN 978-3-030-32815-3
-
18Book
المؤلفون: Md Husain, Nadiah, Razak, A.A.A., Wan Azahar, Wan Nur Aifa, Kasim, Norhidayu, Ismail, Norfarah Nadia, Saad, Siti Asmahani, Masjuki, Siti Aliyyah, Ibrahim, Saerahany Legori, Ramli, Ahmad Bukhari
مصطلحات موضوعية: TA401 Materials of engineering and construction
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/79134/7/79134%20Reusable%20Concrete%20Debris%20as%20Aggregate%20Replacement.pdf; http://irep.iium.edu.my/79134/8/79134%20Reusable%20Concrete%20Debris%20as%20Aggregate%20Replacement%20SCOPUS.pdf; Md Husain, Nadiah and Razak, A.A.A. and Wan Azahar, Wan Nur Aifa and Kasim, Norhidayu and Ismail, Norfarah Nadia and Saad, Siti Asmahani and Masjuki, Siti Aliyyah and Ibrahim, Saerahany Legori and Ramli, Ahmad Bukhari (2020) Reusable concrete debris as aggregate replacement on the properties of green concrete. In: Proceedings of AICCE'19. Lecture Notes in Civil Engineering (53). Springer International Publishing, pp. 869-878. ISBN 978-3-030-32815-3
الاتاحة: http://irep.iium.edu.my/79134/
http://irep.iium.edu.my/79134/7/79134%20Reusable%20Concrete%20Debris%20as%20Aggregate%20Replacement.pdf
http://irep.iium.edu.my/79134/8/79134%20Reusable%20Concrete%20Debris%20as%20Aggregate%20Replacement%20SCOPUS.pdf
https://www.springerprofessional.de/en/reusable-concrete-debris-as-aggregate-replacement-on-the-propert/17446646 -
19Conference
المؤلفون: Nadimalla, Altamashuddinkhan, Masjuki, Siti Aliyyah, Saad, Siti Asmahani, Ali, Maisarah, Md Husain, Nadiah, Wan Azahar, Wan Nur Aifa, Kasim, Norhidayu
مصطلحات موضوعية: TA401 Materials of engineering and construction
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/86433/1/ICATAS%20MJJIC%202020%20Conference%20Book.pdf; http://irep.iium.edu.my/86433/7/86433%20Correlation%20Between%20Slump,%20VeBe%20and%20Compaction%20Factor%20of%20Concrete%20Containing.pdf; Nadimalla, Altamashuddinkhan and Masjuki, Siti Aliyyah and Saad, Siti Asmahani and Ali, Maisarah and Md Husain, Nadiah and Wan Azahar, Wan Nur Aifa and Kasim, Norhidayu (2020) Correlation between slump, VeBe and compaction factor of concrete containing shredded PET bottles, manufactured sand (M-sand) and river sand as fine aggregate. In: 5th International Conference on Advanced Technology and Applied Sciences and 6th Malaysia Japan Joint International Conference (ICETAS MJJIC 2020), 7-8 October 2020, Kuala Lumpur. (Unpublished)
-
20Conference
المؤلفون: Ismail, Norfarah Nadia, Md Yusoff, Nur Izzi, Wan Azahar, Wan Nur Aifa, Ramli, Ahmad Bukhari, Md Husain, Nadiah, Kasim, Norhidayu
مصطلحات موضوعية: T Technology (General)
وصف الملف: application/pdf
Relation: http://irep.iium.edu.my/83829/1/83829%20Higher%20Modes%20and%20Superposed%20Mode%20Behavior%20for%20Flexible%20Pavement.pdf; http://irep.iium.edu.my/83829/2/83829%20Higher%20Modes%20and%20Superposed%20Mode%20Behavior%20for%20Flexible%20Pavement%20SCOPUS.pdf; Ismail, Norfarah Nadia and Md Yusoff, Nur Izzi and Wan Azahar, Wan Nur Aifa and Ramli, Ahmad Bukhari and Md Husain, Nadiah and Kasim, Norhidayu (2020) Higher modes and superposed mode behavior for flexible pavement layer system. In: 6th International Conference on Advanced Engineering and Technology (ICAET 2019), 14th-16th December 2019, Incheon, South Korea.
الاتاحة: http://irep.iium.edu.my/83829/
http://irep.iium.edu.my/83829/1/83829%20Higher%20Modes%20and%20Superposed%20Mode%20Behavior%20for%20Flexible%20Pavement.pdf
http://irep.iium.edu.my/83829/2/83829%20Higher%20Modes%20and%20Superposed%20Mode%20Behavior%20for%20Flexible%20Pavement%20SCOPUS.pdf
https://iopscience.iop.org/article/10.1088/1757-899X/811/1/012047/pdf