Journal of Engineering Science and Technology (JESTEC)

Home Editorial Board Submit a paper Indexing and Awards Reviewers Articles in Press Archives		Archive Special Issue on Innovation in Science and Technology (Part 1) Pages 1 - 204 The Editor-in-Chief of this issue ● Assoc. Prof. Dr. Mohd Rizal Mohd Isa Universiti Pertahanan Nasional Malaysia, Malaysia. rizal@upnm.edu.my Guest Editors ● Assoc. Prof. Dr. Kurnianingsih Politeknik Negeri Semarang, Indonesia. kurnianingsih@polines.ac.id ● Dr. Nur Diyana Kamarudin Universiti Pertahanan Nasional Malaysia, Malaysia. nurdiyana@upnm.edu.my ● Assoc. Prof. Dr. Eri Sato-Shimokawara Tokyo Metropolitan University, Japan. eri@tmu.ac.jp ● Dr. Asepta Surya Wardhana Politeknik Energi dan Mineral Akamigas, Indonesia. aseptasw@esdm.go.id IOT-based leak detection system using point pressure and mass balance method: an experimental research C. N. Hamdani, W. A. Rafsanjani, R. H. Triyanto, A. K. Dewi, A. S. Wardhana 1 - 10 Design of prototype gas detection system based on fuzzy logic in chemical warehouse A. S. Wardhana, N Akhiriyanto, H. B. Nawawi 11 - 22 Low complexity versatile video coding (VVC) for live video communication A. V. Bukit, Suwadi, Wirawan 23 - 35 Aerodynamic characteristics of fluid flow on multiple-element wing airfoil NACA 43018 with leading-edge slat and plain flap S. Hariyadi S. P., B. Junipitoyo, N. Pambudiyatno, Sutardi, W. A. WIDODO 36 - 50 Flexural strengthening behavior of reinforced concrete beams using one layer of cold-formed steel A. Susanto, Susilahadi, A. Solih, H. Kasyanto 51 – 59 Narrow wall beamwidth slotted waveguide antenna for portable coastal radar communication Y. Rahayu, B. Kurniawan, Y. P. Saputera 60 - 70 The effectiveness of multi-sensor systems in monitoring pollution levels A. S. Handayani, N. L. Husni, A. Taqwa, W. Caesarendra 71 - 89 Behavior analysis of people with autism using internet of things - a conceptual study M. Marrauwi, A. A. B. Sajak, Eiadyafi 90 - 102 Interface shear strength and the soil softening effect on the soil-geocomposite drainage layer system stability M. Othman, S. K. C. Osmi, N. Nordin, J. Jelani, Z. Suif, N. Ahmad 103 - 112 Helicopter ditching incident analysis : Classification of risk factor A. Aziz, M. A. U. Amir, A.J. Roshamida, I. Shamsudheen, E. S. M. Sariff, A. Rahman, A. Rosly 113 – 122 Preliminary investigation of CBR value utilizing crushed coconut shell as additive in silty sand J. Jelani, M. F. A. T. Abdullah, H. Husen, M. Othman, Z. Suif, N. Ahmad 123 – 131 Concept development of inclinometer for real-time data collection in slope movement detection A. S. A. Ishak, J. Jelani, S. M. F. S. M. Dardin, Z. A. Rashid, Z. Suif 132 – 144 The effect of 3D printing filament extrusion process parameters on dimensional accuracy and strength using pla-brass filaments M. Darsin, G. Jatisukamto, D. M. Ramadhan, M. E. Ramadhan, R. K. K. Wibowo, H. A. Basuki, D. Djumhariyanto, M. A. Choiron 145 – 155 The correction ratio of environment effect to PE-4 and emulex explosive in tropical region and modeled using artificial intelligence P. Nagappan, M. H. Mat, F. R. Hashim, M. A. Yusof, K. A. Ahmad, A. Samsuri 156 – 166 Water and steam curing types and three NaOH molarities effects due to fly ash based geopolymer concrete compressive strength study F. M. Farida, C. S. Kusumohadi, J. J. Wibisono, A. Surahman 167 – 177 Ranking the best days of the week throughout the pandemic based on daily sales of a company using analytical hierarchy process F. Ali, N. S. Affendi, S. A. S. Ali, R. M. Jusoh 178 – 189 Performance of bamboo reinforced interlocking soil-cement block wall under impact loading S. K. C. Osmi, M. F. I. M. Fazully, H. Husen, M. Othman, N. Hafizi, N. M. Nor, S. Sojipto 190 – 204

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