cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Anwar Ilmar Ramadhan
Contact Email
anwar.ilmar@ftumj.ac.id
Phone
+6281578530897
Journal Mail Official
anwar.ilmar@ftumj.ac.id
Editorial Address
Faculty of Engineering Universitas Muhammadiyah Jakarta Jl. Cempaka Putih Tengah 27 Jakarta Pusat 10510 Indonesia
Location
Kota adm. jakarta selatan,
Dki jakarta
INDONESIA
Journal of Applied Sciences and Advanced Technology
Published by Universitas Muhammadiyah Jakarta
ISSN : -     EISSN : 26226553     DOI : 10.24853/jasat
Core Subject : Engineering,
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering
Journal of Applied Sciences and Advanced Technology (JASAT) is an international peer-reviewed journal dedicated to interchange for the results of high quality research in all aspect of applied sciences, advanced technology. The journal publishes state-of-art papers in fundamental theory, experiments and simulation, as well as applications, with a systematic proposed method, sufficient review on previous works, expanded discussion and concise conclusion. As our commitment to the advancement of science and technology, the JASAT follows the open access policy that allows the published articles freely available online without any subscription.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 87 Documents
 2   3   4   5   6 
Analysis of the Effect of Cutting Variables against Surface Hardness Ery Diniardi; Sri Anastasia Yudistirani; Hasan Basri; Anwar Ilmar Ramadhan
Journal of Applied Sciences and Advanced Technology Vol 3, No 3 (2021): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.3.3.81-88

Abstract

Indonesia is one of the developing countries and is actively pioneering development, especially development in the industrial sector. The industry that is quite developed at this time is the manufacturing industry which produces a finished product that can be directly used by consumers. These products are expected to have a high enough quality level so that they can compete in the market. To support this quality, one of the factors is to pay attention to the level of precision of the workpiece in this case is the level of surface roughness of the object or product produced. The surface roughness value is obtained from the tests carried out on the product which has an average surface value (Ra) and a maximum roughness value (Ry). To achieve the desired roughness value, it is necessary to make improvements in metal forming work. In the variable cutting with variations in cutting speed, it is said that the cutting speed on work with smaller diameter objects should use a high cutting speed. Feeding thickness that is too large can cause high surface roughness values and high rotation at low cutting speeds to produce a smooth surface but takes a long time. With the selection of the speed of ingestion that varies for the price of the ingestion speed of 43.52 m/minute, the surface roughness value is 6.78 m, the speed is 48.32 m/minute, the surface roughness value is 3.64 m and the ingestion speed is 59.25 m. /min the surface roughness value is 6.14 m. Meanwhile, for the infeed thickness which varies for a feed thickness of 1.2 mm, the surface roughness value is 4.06 m; a feed thickness of 2.4 mm obtained a surface roughness value of 27.82 um and a feed thickness of 3.2 mm obtained a surface roughness value of 7.02 m.
The Effect of Oil Thickness in the Cylindrical Settling Tank on the Moisture and Impurities of Crude Palm Oil (CPO) St. Nugroho Kristono; Istianto Budhi Rahardja; Ali Darmawan
Journal of Applied Sciences and Advanced Technology Vol 3, No 1 (2020): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.3.1.21-28

Abstract

Cylindrical Settling Tank (CST) is a unit of clarification station that functions as a process of placing and extracting / extracting palm oil using the under flow and upper flow processes of palm oil. A clarification station is a station in a palm oil mill which functions to separate oil, water, sludge and other objects involved in the refining process of palm oil. This process aims to obtain clean palm oil and avoid dirt and water levels during the extraction process. The higher / thicker the oil layer is taken, it will affect the quality of the palm oil obtained, so it is carried out by taking palm oil slowly (laminar flow). Taking the height / thickness of palm oil is carried out on a skimmer unit that can rise and fall from the surface of the palm oil using a screw system. The results of taking the height / height of palm oil from the level of 20 cm, 30 cm, and 40 cm with the average yield of water content and CST feed impurities are 29.125% and 38.931%, the average output of the Skimmer for moisture and moisture content. the impurities are 1.039% and 0.089%. The mean wet oil tank output was 0.956% and 0.037%, and the mean moisture content and dirt content of the vaccum drier were 0.196% and 0.021%.
The Influence of Operation Conditions of Gedi Leaf Drying Process (Abelmoschus Manihot. L) On Antioxidant Activity Siska Ayu Anggraini; Tri Yuni Hendrawati; Ismiyati Ismiyati
Journal of Applied Sciences and Advanced Technology Vol 3, No 2 (2020): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.3.2.57-64

Abstract

Gedi leaf (Abelmoschus manihot L) is a type of plant that is categorized in a group of medicinal plants / herbal plants and grows mostly in North Sulawesi and is a tropical plant of the Malvacea family, gedi leaves contain flavonoids, tannins, alkaloids, anthraquinone saponins and anthocyanins which have antioxidant activity. Antioxidants are important compounds in maintaining a healthy body. Because it functions as a free radical scavenger. In this study, examined the use of gedi leaf drying as an alternative source of antioxidants to be applied for face masks. Gedi leaf powder sample was tested by Proximate testing to determine the characteristics of gedi leaf powder and gedi leaf powder used as a powder mask preparation. The method used to obtain dry gedi leaves is the oven with a temperature variation used 40; 50; 60 ° C and 5 time variations; 6; 7 hours. The results showed that the best yield of drying gedi leaf powder against time to temperature was 5 hours with a temperature of 70⸰C, from the best yield it was processed into masks divided into 3 formulas, namely 10; 20; 30% dried gedi leaves in a 40gr formula with rice flour as an added ingredient. From the results of making 3 dry gedi leaf mask formulas tested proximate with the help of 20 panelists, the results of the panelists' assessment of formula 2 with 20% gedi leaves are preferred and get a value of 20% higher. Measurement of the 3 formulas obtained pH values of gedi leaf masks of 5.63, 5.68, and 5.72.
Design of Water Heating By Utilizing Waste Heat of Air Conditioner Hasan Basri; Ery Diniardi; Anwar Ilmar Ramadhan
Journal of Applied Sciences and Advanced Technology Vol 3, No 3 (2021): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.3.3.89-96

Abstract

This plan aims to minimize wasted energy in the air freshener system and utilize the wasted energy to heat water. Here using a split type air conditioner system which is commonly used. The author slightly modified the air conditioning system which previously used an air conditioning condenser, here the author added a condenser with a water cooler that functions as a condenser and at the same time as a water heater. The energy used to heat the water is obtained from the heat released by the refrigerant so as to minimize the energy wasted when only using an air conditioning condenser. But the air conditioning condenser is still used in this system, because when hot water is not needed, the water in the heater does not flow and of course cannot take heat from the refrigerant. In this condition the air conditioning condenser can work to help the process of releasing heat from the refrigerant. This tool can heat water up to 43oC with a flow rate of 1 liter per 9 seconds which can be used at home, SOHO, office for bathing, washing face, washing hands, etc.
Analysis of the Potential for Savings in Electrical Energy Consumption in Lifts: Case Study in Indonesia Deni Almanda; Anwar Ilmar Ramadhan
Journal of Applied Sciences and Advanced Technology Vol 3, No 1 (2020): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.3.1.29-34

Abstract

Regenerative Drive is a motor drive system in an elevator that can also generate electrical energy while consuming electrical energy in the elevator machine, Regenerative Drive converts gravitational potential energy into electrical energy by utilizing the operating characteristics of the lift and the weight difference between the lift cage and the load balancing (Counterweight). ). The resulting regenerative power is recovered by returning to the building electricity and being used in other electrical equipment. Regenerative drive lift test location is located in Building which has an elevator using Regenerative Drive. With a motor power of 38.6 kW and can produce regenerative power of 29 kW.
Readiness of National Industries Infrastructure to Support the RDE Programme in Indonesia Dharu Dewi; Arief Tris Yuliyanto; Moch Djoko Birmano; Rr Arum Puni; Rijanti Rijanti; Mudjiono Mudjiono; Taswanda Taryo; Susyadi Susyadi; Rustama Rustama; Sriyana Sriyana
Journal of Applied Sciences and Advanced Technology Vol 3, No 2 (2020): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.3.2.65-74

Abstract

Nuclear Power Plant (PLTN) is one of the options to meet electricity for society and industry. BATAN has developed an Experimental Power Reactor (RDE) design which is one type of Non-Commercial Power Reactor (RDE) is a HTGR (High Temperature Gas-cooled Reactor) NPP with 10 MWth Pebble Bed Reactor (PBR) technology, and is used for non-electric electricity. This reactor type can generate electricity and heat. The development of RDE in Indonesia requires 19 aspects of nuclear infrastructure. One aspect of them is the involvement of national industries. The RDE development is expected to involve several national industries that can participate in supplying government goods and services. The purpose of this research is to determine the capability and readiness of the national industrial infrastructure to be able to participate in the development of RDE in Indonesia. The methodology used is literature review, technical surveys or visits, and technical consultations with key persons from industries. The study results conclude that the civil construction industries and the EPC industries have the readiness and ability to be able to build RDE building especially for non-nuclear parts. The Architect Engineering have the potential and capability for the RDE project management, engineering and Design development. The mechanical industries have the potential and capability to produce turbines, generators, condensers and heat exchangers. The electrical industries have the potential and capability to supply electrical components for the electrical system, such as Switchgear, main transformers, distribution transformers, generators, conductors, power cables, connectors and electrical panels. The Instrumentation & Control industries have the potency and capability to supply I&C products such as instrumentation cable, instrumentation communication system, temperature controller, etc. The output expected from this research is the readiness of nuclear infrastructure, especially the national industries for the supply of non-nuclear components.
“De Tjolomadoe”: from Cultural Heritage to Industry 4.0 Yuke Ardhiati; Setia Damayanti; Diptya Anggita; Adryanto Ibnu Wibisono; Ramadhani Isna; Ade A.S. Fajarwati; Amurwani Dwi Lestariningsih
Journal of Applied Sciences and Advanced Technology Vol 3, No 1 (2020): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.3.1.1-8

Abstract

This article describes a combining research innovation (in cultural heritage) with Industry 4.0 at “De Tjolomadoe” the used sugar factory building. The original name is Suikerfabriek Tjolomadoe at Malangjiwan Karang Anyar. Owned by Kanjeng Adipati Mangkunegara IV of Surakarta built in 1861. By fact, it is the only one sugar factory owned by the Javanese Royal Family during Dutch Colonial era. After Republic of Indonesia was built, it nationalized by Indonesian Government (1946) during Soekarno era (1945-1967). After held it in Adaptive Reuse in 2017 the building’s roles a new function as Convention and Heritage. By refers to a qualitative research, the study aims to finding the elements of industrial 4.0 SDGs in “De Tjolomadoe” included the museum concept. Inside the Convention and Heritage building was found an edutainment facility to accommodate the millennial age. Behind, the gigantic of sugar factory machines, dioramas, archives, miniatur models, original drawings are shows as museum collections. In the huge of “De Tjolomadoe” outdoor lanscape there are the originally of building construction by giant typo”ANNO 1928 ” in the brick wall, the Art Deco style of the Resident’s House Administrator, the Prince’s Gazebo, the Sarkara Hall as a multi-function hall, and prefecly by the beautiful Sunken Plaza. Related to industrial 4.0 SDGs they show the internet of thing (IoT) by created the Old Javanese civilization of sugar factory. Especially in The Royal Landscape’s corner there are “glow in the dark” by an artificial intelligent architecture. It shows the glory of the last Sugar Factory in Java Island during at the Colonial Era. Now, by the successfully of the Adaptive Reuse in 2017 was composed The Cultural Heritage with industry 4.0 has modified “De Tjolomadoe” to be one of the venue of the millennial visitors to create their happy times during its appreciation.
Weather Forcast Optimization Using Learning Vector Quantization Methods with Genetic Algorithms Siska Andriani; Kotim Subandi
Journal of Applied Sciences and Advanced Technology Vol 3, No 2 (2020): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.3.2.45-50

Abstract

Weather forecasting is one of the important factors in daily life, as it can affect the activities carried out by the community. The study was conducted to optimize weather forecasts using artificial neural network methods. The artificial neural network used is a learning vector quantization (LVQ) methods and genetics algorithms (GA). BMKG weather data was originally modeled using the LVQ method, then also created the LVQ Method Optimization weather forecast model using GA. Data attributes consist of numeric and categoric. Numeric attributes as input parameters are: temperature, evaporation, sunlight, humidity and rainvol. While the categorical attributes are ourput from weather forecasts include: Cloudly (C), Partly Cloudly (PC), Sunny (S), Rain (R) and Cloudly rain (CR). Sample data used is 1096 data. Both models were tested so that they obtained 72% accuracy results for weather forecast models using the LVQ method and 73% of the weather forecast accuracy results that were optimized using GA. The results have not achieved the most optimal results because it turns out that citeko region weather data is not suitable for use in both methods. Because the data has an imbalance in the amount of data per class.
Analysis of Pressure Vessel Design on Radiator Cooling System Using Low Carbon Steel Material Nana Rahdiana; Sukarman Sukarman; Murtalim Murtalim; Khoirudin Khoirudin; Dodi Mulyadi; Amir Amir; Tito Chaerul Pratama; Ahmad Hidayat
Journal of Applied Sciences and Advanced Technology Vol 3, No 3 (2021): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.3.3.81-90

Abstract

This study discusses the analysis of a pressure vessel's design in the Radiator Cooling 1000 (RC-1000) system, which operates at a design temperature of 100oC. A pressure vessel is a container of gaseous, solid, or liquid material subjected to internal or external pressure and can withstand various other load variations. The pressure vessel on the RC-1000 system has a diameter of 85.4 mm or 3.36 inches and will experience an internal pressure of about 143.7 kPa or 20.84 psi, so it must be designed safely. This research method uses analytical and experimental methods. The analytical method is used to calculate the thickness of the pressure vessel material, the maximum allowable working pressure, and the hydrostatic test calculation. While the experimental method was carried out on the hydrostatic test process, the evaluation was based on the prevailing regulations in the Republic of Indonesia. Using the SPCC-SD material (JIS 3141), it was found that the minimum thickness of this pressure vessel is 1.15 mm or 0.0452 inches on the shell side and 1.10 mm or 0.0434 inches on the head/dome side. The thickness of the material used on the shell side and head/dome is 1.2 mm or 0.0472 inches in practice. This pressure vessel has passed the hydrostatic test at 1600 kPa or 232.1 psi. The test pressure is given around seven psi higher because it makes it easier to read the scale on the pressure gauge.
The Improvement Of Electrical Power Generated By Pump As Turbine Using Guide Vane Dede Lia Zariatin; Taruna Taruna; Danies Seda; Agri Suwandi; Ismail Ismail
Journal of Applied Sciences and Advanced Technology Vol 3, No 1 (2020): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.3.1.17-20

Abstract

One of the problems faced by micro hydropower plant, including Pump as Turbine is low efficiency. Pump as Turbine (PAT) is one of micro-hydro power plant that uses a centrifugal pump as the turbine and modifies the pump motor to become a generator. Researches tried to improve the PAT efficiency by modifying the impeller and pump housing in order to optimize the flow that rotates the generator shaft. However, there is still another possibility of modifying and improving the water flow by using a regulating or guide vane. This research aims to improve PAT efficiency by conditioning the water inlet using a guide vane in a vertical direction. The regulating vane with a diameter of 56 mm has four vanes made of stainless steel. The vane is adjustable so that the vane opening can be regulated. In this research, the vane opening was setting at 0°, 30°, 45°, and 65°. The experimental test was performed at a PAT power plant's laboratory scale with a head of 3.7 m above the ground. The regulating vane was placed on 260 and 400 mm above the PAT. It showed that the power increased 7% when the guide vane placed 400 mm above the pump shaft with a 45° of vane opening.

Page 4 of 9 | Total Record : 87

 2   3   4   5   6 

Filter by Year

2018 2025


Reset
Filter By Issues
All Issue Vol. 7 No. 3 (2025): Journal of Applied Sciences and Advanced Technology Vol. 7 No. 2 (2024): Journal of Applied Sciences and Advanced Technology Vol 7, No 1 (2024): Journal of Applied Sciences and Advanced Technology Vol. 6 No. 3 (2024): Journal of Applied Sciences and Advanced Technology Vol 6, No 2 (2023): Journal of Applied Sciences and Advanced Technology Vol 5, No 3 (2023): Journal of Applied Sciences and Advanced Technology Vol 5, No 2 (2022): Journal of Applied Sciences and Advanced Technology Vol 5, No 1 (2022): Journal of Applied Sciences and Advanced Technology Vol 4, No 3 (2022): Journal of Applied Sciences and Advanced Technology Vol 4, No 2 (2021): Journal of Applied Sciences and Advanced Technology Vol 4, No 1 (2021): Journal of Applied Sciences and Advanced Technology Vol 3, No 3 (2021): Journal of Applied Sciences and Advanced Technology Vol 3, No 2 (2020): Journal of Applied Sciences and Advanced Technology Vol 3, No 1 (2020): Journal of Applied Sciences and Advanced Technology Vol 2, No 3 (2020): Journal of Applied Sciences and Advanced Technology Vol 2, No 2 (2019): Journal of Applied Sciences and Advanced Technology Vol 2, No 1 (2019): Journal of Applied Sciences and Advanced Technology Vol 1, No 3 (2019): Journal of Applied Sciences and Advanced Technology Vol 1, No 2 (2018): Journal of Applied Sciences and Advanced Technology Vol 1, No 1 (2018): Journal of Applied Sciences and Advanced Technology More Issue