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Asep Bayu Dani Nandiyanto
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JL. Setiabudhi No. 229 Bandung, 40154 Jawa Barat - Indonesia
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INDONESIA
Asean Journal of Science and Engineering (AJSE)
Published by Universitas Pendidikan Indonesia
ISSN : 27766098     EISSN : 27765938     DOI : https://doi.org/10.17509/ajse.
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Engineering Materials Science & Nanotechnology
ASEAN Journal of Science and Engineering (AJSE) promotes research in the broad field of science and Engineering Education (including such disciplines as Agriculture Education, Environmental Science Education, etc.) with particular respect to Indonesia, but not limited to authorship or topical coverage within the region. Contributions are expected from senior researchers, project managers, research administrators and PhD students at advanced stages of their research, representing both public organizations and private industry. Equally, the journal if intended for scholars and students, reseachers working at research organizations and government agencies, and also for enterprises undertaking applied R&D to lead innovations. The editorial contents and elements that comprise the journal include: Theoretical articles Empirical studies Practice-oriented papers Case studies Review of papers, books, and resources. As far as the criteria for evaluating and accepting submissions is concerned, a rigorous review process will be used. Submitted papers will, prior to the formal review, be screened so as to ensure their suitability and adequacy to the journal. In addition, an initial quality control will be performed, so as to ensure matters such as language, style of references and others, comply with the journal´s style. The below mentioned areas are just indicative. The editorial board also welcomes innovative articles that redefine any Science and Technology field. Chemistry and Chemical Engineering Physics, Material, and Mechanical Engineering Biology, Biological and Bio System Engineering Food and Agriculture Engineering Mathematics Computer Science and Engineering Earth Science and Engineering Space Engineering Electrical Engineering Architecture and Civil Engineering Environment Science and Engineering Basic Science in Engineering Engineering Reforms New Technologies Industry and Education: A Continous Collaboration Research and Development in Engineering Globalisation in Engineering Women in Engineering Computers, Internet, Multimedia in Engineering Organization of Laboratories Agricultural Bio Systems Engineering Mechanical Engineering Electric and Electronic Engineering Civil Engineering and Architectural Engineering
Arjuna Subject : Ilmu Material (semua kategori) - Ilmu Material (Lain-Lain)
Articles 98 Documents
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Evaluation of FTIR, Macro and Micronutrients of Compost from Black Soldier Fly Residual: in Context of Its Use as Fertilizer S. Sukamto; Ali Rahmat
ASEAN Journal of Science and Engineering Vol 3, No 1 (2023): AJSE: March 2023
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v3i1.42798

Abstract

The extensive use of chemical inorganic fertilizers promotes the degradation of agricultural land quality and leads to various environmental contaminations. Owing to these problems, the alternative way called “organic farming” has been developed through the use of organic fertilizers including compost.  In this study, compost product obtained from composting process by using larvae as the biological agent has been prepared. Macronutrients (i.e. N, P, K, Ca, and Mg) and micronutrients (i.e. Mn, Fe, Cu, Zn, and Ni) have been determined using Inductively Coupled Plasma-Optical Emission Spectrometry, Walkey and Black method, Kjeldahl method, and P Bray-1 method, which showed sufficient content and meet the standard value. Analysis and the comparative study showed that the compost product can be used as a fertilizers substitute. The compost from residual offers more economic, great availability, and environmentally friendly fertilizers for agricultural purposes.
Indonesia Toll Roads: Its Effect on The Trade Routes in ASEAN Aldi Adista Juliadi; Alya Sophia Oktirellia; Galuh Chisyti Nur Fadhilah; Indira Shaffiyah; Vina Dwiyanti
ASEAN Journal of Science and Engineering Vol 3, No 1 (2023): AJSE: March 2023
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v3i1.33765

Abstract

The sea toll road is one of a solution that gives a good effect in the trade routes in the future. Indonesia toll road is a program of the Indonesian government that aims to improve connectivity between regions inequitable distribution of goods so that the movement of the economy can be efficient and evenly distributed. In addition to the impact on the Indonesian state, this program has an impact on countries that are close to Indonesia (ASEAN). The purpose of this study is to analyze how the systematics of Indonesia's toll road program and its effects on the trade routes neighboring countries of Indonesia. The method that we used in this study is review analysis. The result of this study is sea toll facilitates commercial access from southern Pacific countries to Eastern Asian countries. The idea of the Sea Toll concept will open up regional access by making two large international hub ports that can serve large commercial ships above 3,000 TEUs or a Panamax vessel class of 6000 TEUs. This study has an impact on the international shipping process through ASEAN trade routes.
Electro-Magnetism in Battery Pot Plants with Heating Chambers for Heat Energy Transduction Lena J-T Strömberg
ASEAN Journal of Science and Engineering Vol 3, No 1 (2023): AJSE: March 2023
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v3i1.44941

Abstract

Electro-magnetism for components and pot plants in interaction are studied with experiments and analysis. Experiments were done using a chamber for heat energy transduction in arrangements with battery electrodes in a pot. The process required heat to produce current and electric power together with the battery. This study also considered the performance in terms of more current and voltage. The largest device produced 0.16 mW. The function of the chamber is considered chamber amplification. This study also analyzed with Hamiltonian mechanics. An application outdoor was also presented to replace and understand the summer energy sources with electricity. By using this procedure, this study found that if a plant adapts, it develops durability of cold outside
Correlation among Construction, Safety, Accident, and the Effectiveness Construction Industry Development Board (CIDB) Green Card Training Program: An Initial Review Nurhana Abd Wahab; Nik Hasnaa Nik Mahmood; Asnul Dahar Minghat
ASEAN Journal of Science and Engineering Vol 3, No 2 (2023): AJSE: September 2023
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v3i2.45478

Abstract

The objective of this study was to show the correlation between construction, safety, accident, and the effectiveness Construction Industry Development Board (CIDB) Green Card Training Program. This paper was based on a literature review to get an explanation. This study can be used for reference for informing the need in taking care of possible risks and safety in the industry.
Barriers in the Foreign Workers in Industry: Investigation during Training Nurhana Abd Wahab; Nik Hasnaa Nik Mahmood; Asnul Dahar Minghat
ASEAN Journal of Science and Engineering Vol 3, No 3 (2023): (ONLINE FIRST) AJSE: December 2023
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v3i3.45476

Abstract

The purpose of this study was to review barriers in the foreign workers in Industry. We took data for the industry in Malaysia. This study was conducted based on only 55 workers from the Nadayu site. It is recommended that the study be carried out in a larger sample and involvement of the Construction Industry Development Board (CIDB) and the registered CIDB contractor. This study focus on the language barrier, safety knowledge, and background of workers, and these factors contribute to the effectiveness of training. It is proposed to have an in-depth study on the syllabus, methodology of training, motivation, and commitment of the company to improve CIDB training.
Protection System for Electrical Loads of Administration Building in Controlling Voltage Variations Due to Over-Voltage and Under-Voltage John Bryan S. Camacho; Erlan L. Cinense; Christian Philip P. De Guzman; Gian Irby L. Garcia; Freneil R. Pampo; Errol M. Canlas
ASEAN Journal of Science and Engineering Vol 3, No 3 (2023): (ONLINE FIRST) AJSE: December 2023
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v3i3.48667

Abstract

The purpose of this study is to focus on producing a protection system design for the electrical loads of administration buildings from over and under voltage. An on-site voltage reading has been initiated and continued for several days to determine whether voltage variation is occurring in the location. The building’s load schedule has served as a point of reference in calculating the appropriate size of wire and Molded Case Circuit Breaker ampere rating. For the proponents to understand the design standards, the Philippine Electrical Code is used as a reference. Consequently. The design that has been made and proposed is for controlling over and under voltages. The power supply at the Administration building can be transferred over to the other power supply coming from a generator set. The voltage readings in the Admin Office MDP range from 218.55 to 231.03 V. The other one on the General Office MDP is from 219 to 230.48 V, showing that no over-voltage and under-voltage is happening in the building and normal working voltages are delivered on the electrical loads. Thus, the electrical loads in the building are safe from voltage variations.
Energy-Efficient Synthetic Method, X-Ray Diffraction Analysis and Thermal Decomposition of Cobalt (II) and Nickel (II) Schiff Base Complexes Derived from 2-Aminobenzothiazole Salihu Sani; Ibrahim Tajo Siraj; Mukhtar Atiku Kurawa; Isa Baba Koki
ASEAN Journal of Science and Engineering Vol 3, No 2 (2023): AJSE: September 2023
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v3i2.47184

Abstract

A Schiff base was synthesized from the condensation reaction of 2-hydroxybenzaldehyde and 2-aminobenzothiazole via energy-efficient liquid-assisted mechanochemical synthesis (LAG). The Co (II) and Ni (II) complexes were also synthesized and characterized using IR, Solubility, TGA, PXRD, UV-Visible analysis, magnetic susceptibility measurement, conductivity measurement, and CHNS/O micro-analysis. In the IR analysis, the Schiff base spectrum revealed a prominent band at 1603 cm-1 (assigned to the azomethine v(C=N) stretching vibration), and the azomethine band shifted to 1621 and 1599 cm-1 in the Co (II) and Ni (II) complexes, respectively (indicating the formation of the expected complexes). In the TGA thermogram, Ni (II) and Cu (II) Schiff base complexes had decomposition temperatures of 184 and 181°C, respectively. The PXRD analysis revealed that the patterns of the ground mixture were different from the starting constituents, implying that the raw components were converted into the final product. The theoretical and experimental analytical data of C, H, and N for the Schiff base and complexes are in good agreement. The Schiff base ligand and its complexes were evaluated as agents for inhibiting the growth of pathogenic bacteria using the agar well diffusion method. According to antimicrobial activity studies, complexes exhibit stronger antibacterial activity than the Schiff base.
Study of Flood Variation of Wainganga River Basin and Dhuti Dam with Impact on Crops at Balaghat Station (India) S. K. Patle; C. Parasar; R. Chavan
ASEAN Journal of Science and Engineering Vol 3, No 2 (2023): AJSE: September 2023
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v3i3.47222

Abstract

The usefulness of the Dhuti dam and its importance for crop irrigation at the Balaghat station, located on the Waingang River in Madhya Pradesh, India, has been the focus of research on rainfall fluctuations in the Wainganga sub-basin. Wainganga is the largest peninsular river in India. Wainganga River flows for 635.40 kilometers. Until its confluence with the Wardha River, the Wainganga River has a catchment area of 51,000 km2. The basin spans the five districts of Maharashtra and three districts of Madhya Pradesh. The Wainganga Basin is also mentioned in "The Jungle Book" by the famous writer Rudyard Kipling. The Wainganga Basin is known for the production of rice and, more specifically, Chinour. Balaghat "Chinour" rice obtained G-Tag certificate in 2021, and is now internationally renowned and exported. Rice crops are irrigated mainly by water from the Dhuti dam throughout the year. The dam is very important for the development of rice crops in the region. Sir Jorge, a British engineer, built the dam between 1911 and 1921. It is one of the oldest earthen dams in India, sealed with lime mortar. Floods have affected the cultivated area and water demand in the Balaghat district area for the past few years. The intensity and duration of rainfall varies from year to year along with changes in climatic conditions. The effect of flooding in a given season, as well as basin factors such as variations in rainfall, coefficient of variance, and agricultural damage were examined.
Efficiency of Investment Project Evaluation in the Development of Innovative Industrial Activities Jakhongir Shaturaev
ASEAN Journal of Science and Engineering Vol 3, No 2 (2023): AJSE: September 2023
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v3i2.45675

Abstract

The article discusses the issues of the effectiveness of investment projects, and their assessment when introducing innovations into the process. As you know, innovations, both domestic and foreign, allow you to first create the prerequisites for stabilizing the situation in the country's economy, and then for a radical increase in its efficiency. That is why the theoretical substantiation of the conceptual approach, the development of practical recommendations for solving problems, and strategies for the innovative development of industries are becoming an important factor in progress and, therefore, very relevant and significant research for practice. The efficiency of investment projects is analyzed based on the goals of the industry, methods are used and a calculation is given to increase the efficiency of implemented projects in the industry. In this regard, it is necessary to note the particular importance of timely identification and systematic use of reserves for the implementation of innovative activities, as well as for increasing innovative activity to achieve more efficient further activities of industries.
Jakarta COVID-19 Forecast with Bayesian PIRD Multiwave Model Christian Evan Chandra; Sarini Abdullah
ASEAN Journal of Science and Engineering Vol 3, No 3 (2023): (ONLINE FIRST) AJSE: December 2023
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v3i3.47248

Abstract

Governments have to consider both socioeconomic and health conditions in handling the COVID-19 pandemic. To help them in understanding possible scenarios behind the numbers and deciding optimum policy, this study proposed a Bayesian protected-infected-recovered-dead (PIRD) multi-wave model. Compounds of the Richards curve are used to understand how many pandemic waves possibly occur, how significant is the occurrence of every single wave, and dynamic in every single wave. The model also estimated the mortality rate due to the COVID-19 pandemic and the duration between infection to death, also infection to recovery. We fitted Jakarta’s COVID-19 data from 3 March 2020 to 25 November 2021 with help of OpenBUGS. We learned that their pandemic should consist of at least two waves, expected to have three waves already. By letting social restriction be looser together with decreasing number of new infection cases, Jakarta could have its fourth and even fifth pandemic wave that starts around mid-May to mid-July 2022 and reach its peak around January to February 2023. Vice versa, they could enter the endemic phase around the end of August 2022 until the beginning of February 2023 and finally have zero COVID-19 new infection around mid-January until mid-June 2023 by having stricter social restrictions.

Page 8 of 10 | Total Record : 98

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