Journal Issue

Volume 14, Number 1


Index terms:
Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.6323
Pages : 1-4

Index terms: Angle of attack; Energy; Horizontal wind turbine; Lift-to-drag ratio

Modification of Horizontal Wind Turbine Blade: A Finite Element Analysis

Sahahd Hamza, Milad Heidari, Mohammad Ahmadizadeh, Mohammadreza Dashtizadeh, Mira Chitt

Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.5255
Pages : 5-14

Index terms: Carbon Steel; FeCrAlTiY; Flame Spraying; MoSi2; Oxidation

Cyclic Oxidation Resistance of MoSi2 Added FeCrAlTiY Coatings on ST41 Steel at 700oC Prepared by a Flame Spraying Technique

Januaris Pane, Dedi Holden Simbolon, Hubby Izzudin, Ahmad Afandi, Bambang Hermanto, Kerista Sebayang, Syahrul Humaidi, Marhaposan Situmorang, Toto Sudiro

Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.5092
Pages : 15-25

Index terms: Effective thermal conductivity; Metais-Eckert number; Porous materials bed; Sudden enlargement-contraction channel

The Effects of Effective Thermal Conductivity of Porous Materials Under Vapor Flow in Sudden Enlargement-Contraction Channel on Local Heat Transfer

Eko Siswanto, Denny Widhiyanuriyawan, Mochammad Agus Choiron, Djarot Bangun Darmadi, Yasuo Katoh

Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.3660
Pages : 26-37

Index terms: Electric motorcycles; Electric vehicles; Environmentally friendly; Ride-hailing applications; Sustainable economic development

Benefits of Electric Motorcycle in Improving Personal Sustainable Economy: A View from Indonesia Online Ride-Hailing Rider

Patdono Suwignjo, Muhammad Nur Yuniarto, Yoga Uta Nugraha, Ayuning Fitri Desanti, Indra Sidharta, Stefanus Eko Wiratno, Triyogi Yuwono

Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.5454
Pages : 38-53

Index terms: Electric mobility; Life cycle costing; Public transport; Social benefit-cost ratio; Sustainable transport

Social Benefit-Cost Analysis for Electric BRTS in Ahmedabad

Debasis Sarkar, Anal Sheth, N. Ranganath

Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.3028
Pages : 54-64

Index terms: Carbon nanotubes; Dispersion; Optoelectronic properties; Separation; Spectroscopy

Optoelectronic Characterization and Properties of Single-walled Carbon Nanotubes in a Liquid Dispersion Form

Sami S. Alabsi, Mohd Haris Md. Khir, John Ojur Dennis, Saeed S. Ba Hashwan, Abdullah S. Algamili

Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.5124
Pages : 65-77

Index terms: Bioethanol; Life cycle assessment; Red seaweed; Solid waste

Determining The Seaweed Solid Waste-Based Ethanol Potential from Life Cycle Assessment (LCA) Perspective

Ary Mauliva Hada Putri, Muhammad Safaat, Hafiizh Prasetia, Firman Zulpikar, Jeverson Renyaan, Rijali Noor

Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.4949
Pages : 78-89


Index terms: Asian palm civet; Caffeine; Decaffeination; Inhibition kinetics; Klebsiella; Specific growth; Substrate

Assessment of Caffeine-degrading Ability on Bacterial Strains Klebsiella sp. Isolated from Feces of Asian Palm Civet (Luwak)

Toto Iswanto, Maya Shovitri, Ali Altway, Tri Widjaja, Puspita Lisdiyanti, Atha Pahlevi Putra

Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.4982
Pages : 100-108

Index terms: Granular fertilizer; Liquid fertilizer; Precision farming; Site-specific application; Tractive force

A Chisel Fertilizer for In-Soil Tree-Layer Differential Application in Precision Farming

Sayakhat Nukeshev, Kairat Yeskhozhin, Dimitar Karaivanov, Mikalai Ramaniuk, Erzhan Akhmetov, Bakhitbek Saktaganov, Khozhakeldi Tanbayev

Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.5143
Pages : 109-118

Index terms: BaAl1.4Si0.6O3.4N0.6:Eu2+; Color adequacy; Color quality scale; Color rendering index; Luminous intensity; White light-emitting diodes
Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.5666
Pages : 119-128

Index terms: Adsorption; Clay; Isotherm; Mercury; Monolith

Clay and Zeolite-Clay Based Monoliths as Adsorbents for the Hg(II) Removal from the Aqueous Solutions

Darmadi, Mirna Rahma Lubis, Munadiya Masrura, Aziz Syahfatra, Mahidin

Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.5134
Pages : 129-141

Index terms: Catalyst lifetime; Impregnated; Lanthanum; Olefin; Strontium

Improvement of Catalyst Activity in Methanol-to-Olefin Conversion via Metal (Sr/La) Impregnation over ZSM-5 Catalyst

Heri Heriyanto, Oki Muraza, Galal A. Nasser, Mohammed Ahmed Sanhoob, Idris A. Bakare, Budhijanto, Rochmadi, Karna Wijaya, Arief Budiman

Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.4884
Pages : 142-151

Index terms: Carbon fiber; Lignin; Nanofiber cellulose; Oil palm empty fruit bunches
Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.5082
Pages : 152-161

Index terms: Blends; Compatibilizer; Cyclic natural rubber; Linear low-density polyethylene; Oleic acid-grafted linear low-density polyethylene
Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.5085
Pages : 162-172

Index terms: Bioplastics; Compatibilizer, Coupling agent, Grafting, Starch

Effects of LLDPE on Mechanical Properties, Degradation Performance, and Water Absorption of Thermoplastic Sago Starch Blends

Denny Akbar Tanjung, Novesar Jamarun, Syukri Arief, Hermansyah Aziz, Boy Isfa, Ahmad Hafizullah Ritonga, Vivi Sisca

Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.4926
Pages : 173-184

Index terms: Catalytic; Fuel; Natural-zeolite; Pyrolysis; Styrofoam
Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.4907
Pages : 185-194

Index terms: Biosorption, Chlorella sp., Copper removal, Living biosorbent, Wastewater treatment
Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.4995
Pages : 195-205

Index terms: Bagasse fly ash; Biodiesel; Catalyst; Esterification; Free fatty acid
Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.4873
Pages : 206-218

Index terms: Carbon dots; Metal ion sensor; Nanocrystalline cellulose; N-dopant agent; Static quenching

Synthesis of Nitrogen-Doped Carbon Dots from Nanocrystalline Cellulose by Pyrolysis Method as Hg2+ Detector

Marpongahtun, Andriayani, Yugia Muis, Saharman Gea, Suci Aisyah Amaturrahim, Boy Attaurrazaq, Amru Daulay

Publication Date (Online):
Jan 18, 2023
DOI: https://doi.org/10.14716/ijtech.v14i1.4863
Pages : 219-231