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All Journal ComEngApp : Computer Engineering and Applications Journal IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Logic : Jurnal Rancang Bangun dan Teknologi International Journal of Applied Technology Research Jurnal Teknologi Aptekmas : Jurnal Pengabdian Kepada Masyarakat Journal of Applied Agricultural Science and Technology

Rusdianasari Rusdianasari

Politeknik Negeri Sriwijaya

Author-ID : 2892580

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Fuzzy Logic Controller Application for Automatic Charging System Design of a Solar Powered Mobile Manipulator Fradina Septiarini; Tresna Dewi; Rusdianasari Rusdianasari
Computer Engineering and Applications Journal Vol 10 No 3 (2021)
Publisher : Universitas Sriwijaya

Agriculture is a vital industry that affects the livelihoods of many people. Given the reduction in agricultural employees and the increasing strain on farmers, this sector requires convenience, which the automation system may provide. One of the automations is mobile manipulator implementation to substitute farmers. This study investigates the automatic battery charging system supported by the Fuzzy Logic Controller (FLC) to power a mobile manipulator. The application of solar charging is an ideal power source for the robot applied in the open field with high irradiance all year long. This charging system is equipped with IoT monitoring online to monitor the available power produced by solar panel and the battery capacity condition. The effectiveness of the proposed method is proven by experiments conducted for ten times charging in ten days, where the highest power produced by the panel is 1.080 W with 0.563 W charged to the battery. The highest irradiance comes with the highest surface panel temperature of 58.9OC at the irradiance rate of 1021 W/m2. The experimental results show the possibility of the solar-powered robot, which is ideal for agriculture implementation.

Electrocoagulation Method to Reduce Pollutants in the Wastewater of Jumputan Fabric Industry Rusdianasari Rusdianasari; Ibnu Hajar; Indri Ariyanti
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 5, No 3 (2020): October 2020
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v5.i3.71

The existence of the textile industry in Indonesia is not only in the category of large and medium scale industries but also in small scale and some even in the home industry. These caused pollution mainly as a result of the dyeing of textiles. Dye not only occurs in industrial areas but also occurs in densely populated settlements. An attempt to treat the waste of the textile industry is needed to solve the environmental pollution. In this research, liquid waste was processed using the electrocoagulation method, and the expected concentration or hazard caused by waste was decreased and to fulfill the required environmental quality standard. Treatment of jumputan wastewater by electrocoagulation method using 4 aluminum electrodes 11x10.5 cm in size with MP-P configuration type (Monopolar-Paralel) for 120 minutes. The parameters measured in this study were chromium heavy metal content, TSS (Total Suspended Solid), TDS (Total Dissolved Solids), as well as changes in pH, color and turbidity values where the applied voltage variations were 10, 13, 15, 17, and 20 volts with variation of electrode distance used 1.5; 2.0; and 2.5 cm. The best condition for each parameter was obtained at a distance of 1.5 cm with a voltage of 20 volts. Effectiveness of electrocoagulation method to decrease turbidity value up to 99.84%; color 99.33%, chromium content of 62.5%; TSS 33.68%; TDS of 66.59% and raised the pH from 5.64 to 8.10, respectively.

Application of Nanosilica from Rice Husk Ash as Iron Metal (Fe) Adsorbent in Textile Wastewater Rusdianasari Rusdianasari; Muhammad Taufik; Yohandri Bow; Maryam Seyaski Fitria
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 5, No 1 (2020): February 2020
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v5.i1.7

Heavy metals are considered hazardous to health if they accumulate excessively in the body. One way to remove iron metal ions by adsorption process uses adsorbents. In this study, removal of heavy metals such as ferrous metal (Fe) was adsorbed using an adsorbent in the form of nanosilica. Nanosilica is made from rice husk ash where rice husk ash contains 80-90% silica so that it can be utilized as a raw material in nanosilica synthesis. Synthesis of nanosilica was carried out using a solvent in the form of KOH with a variation of 1.5M concentration; 2.5M; 3.0M; 3.5M and 4.5M. The five types of nanosilica were applied to textile waste containing ferrous metal (Fe) with variations in a contact time of 5, 10, 15, 20, and 25 minutes. Waste containing iron metal that has been adsorbed was analyzed by atomic absorption spectrophotometry (AAS) to see the remaining iron content. From the analysis of AAS produced the smallest iron concentration of 0.186 ppm in nanosilica with 1.5 M KOH solvent. Nanosilica with 1.5M KOH solvent was characterized using a Scanning electron microscopy (SEM) -Energy Dispersive X-ray (EDX) tool to obtain a surface morphological size of 0.44 µm with 28.95% SiO2 content.

The Optimum Yield of Nannochloropsis sp Microalgae from the Lipid Cultivation and Extraction Process with Soxhlet Method Lukmanul Hakim; Rusdianasari Rusdianasari
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 6, No 3 (2021): October 2021
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v6.i3.81

The purpose of this study was to determine the optimal growth of Nannochloropsis sp microalgae cell density observations in the cultivation process and to see the percent yield of lipids from microalgae Nannochloropsis sp. through the extraction process with the Soxhlet method using n-hexane and ethanol solvents at a ratio of 1:1, 1:2, 1:3, 1:4 and 1:5. The optimal amount of cell density during the cultivation process has obtained an average of 32,206 x 104 cells/ml on day of 9th, and the optimal lipid yield was in the ratio of hexane: ethanol 1:1 with a value of 32.13%. These results show that the optimal conditions for yield can be obtained and also has the potential as a raw material biodiesel production.

Biodiesel Production from Waste Cooking Oil using Induction Heating Technology RA Nurul Moulita; Rusdianasari Rusdianasari; Leila Kalsum
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 5, No 1 (2020): February 2020
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v5.i1.13

Kerupuk and kemplang industries produce at least 65 liters of waste cooking oil per production. One form of the application of science and technology in the field of new and renewable energy can be done in processing the waste oil from industrial production through the conversion process into one of the environmental friendly alternative fuels, biodiesel. Biodiesel production process can be carried out by various methods, such as utilizing induction heating technology. This technology has non-contact properties that do not interfere with the reactions that occur because of its application, which produces heat from the workpiece. This study uses waste cooking oil as raw material with variations in the molar ratios 1:3, 1:4, 1:5, 1:6, and 1:7. The analysis showed that the maximum biodiesel production was used of 1: 7 molar ratio with 86.95% yield, 0.86 gr/cm3 of density, 5.73 cSt of viscosity, 190oC of flash point, and 0.44 mg-KOH/gr of acid number. The using this ratio produces maximum yield and following SNI.

Karakterisasi Minyak Jelantah Hasil Produksi Keripik Nenas Dengan Metode Vacuum Frying Rusdianasari Rusdianasari; Leila kalsum; Aida Syarif; Yohandri Bow
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 2, No.2 (2019) : APTEKMAS Volume 2 Nomor 2 2019
Publisher : Politeknik Negeri Sriwijaya

Small and medium businesses (SMEs) have developed rapidly in Indonesia, especially for the food sector. One of the most productive UKM in Prabumulih city is UKM Melati which produces pineapple chips from pineapple which is a regional superior product from Prabumulih city. To get dried and tasty pineapple chips, frying is done by using a vacuum frying method that requires a lot of cooking oil. The results of vacuum drying frying will produce used browning frying oil or used cooking oil and cannot be reused if the characteristics of used cooking oil exceed the standard. For this reason, an analysis is needed to determine the characteristics of used cooking oil from the results of the production of pineapple chip vacuum vacuum frying methods. From the results of the analysis that has been carried out on filtered used cooking oil, the value of free fatty acid (FFA) is 4.9% (maximum requirement 0.3%) and peroxide value 1.8 Meq/kg. Thus, used cooking oil cannot be used anymore for frying.

PENGEMBANGAN DESAIN KAIN JUMPUTAN PALEMBANG UNTUK MENINGKATKAN INDUSTRI KREATIF Rusdianasari Rusdianasari; Ibnu Hajar; Indri Ariyanti; Yohandri Bow
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 3 No 2 (2020): APTEKMAS Volume 3 Nomor 2 2020
Publisher : Politeknik Negeri Sriwijaya

The development of micro, small and medium enterprises (MSMEs) is the basis of the economy in improving the national economic rate because most of the existing businesses in Indonesia are small and medium enterprises. Among those small and middle enterprises, Palembang Jumputan Textile has its own characteristics in patterns and colors. Under the influence of a certain pattern, Jumputan Textile has been known and spread in Sumatra and even in Indonesia and overseas. Nowadays, the regional pattern in every province has been in the fast track of development nationally. The creative industry in Palembang is including around 300 industries of Songket and Jumputan Textile recorded in this city. Community service activities have been conducted to two small and medium enterprises in the center of Palembang Jumputan Textile. The community activities are including the development of pattern making or motif on fabric, dyeing process, and online marketing technique in attempt to improve the sales.

Songket Industry Wastewater Processing Using Electrocoagulation Method Rusdianasari Rusdianasari; Ibnu Hajar; Indri Ariyanti
Logic : Jurnal Rancang Bangun dan Teknologi Vol 19 No 1 (2019): March
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

The increment of Songket popularity as the traditional fabric from South Sumatra increases the production of Songket and the wastewater produced during the dying process. The dying process produces the reddish wastewater, and if it is disposed of directly into the environment, it will have a negative impact on the waters. The wastewater treatment of this reddish liquid is by electrocoagulation method. Electrocoagulation method is contaminants removal by electrical and chemical treatment system. The electrocoagulation method in this research was conducted in a batch where the wastewater was treated using 16.5 x 7.0 x 0.2 cm aluminum electrode. The parameters varied were the current density and processing time to determine the pH value, color intensity, BOD5, COD, TSS, and phenol levels. The optimum condition obtained from this study at a current density of 25 A/m2 with a processing time of 160 minutes. The effectiveness of Songket wastewater electrocoagulation was 67.28% for TSS, 54.13% for BOD5, 63.64% for COD, color intensity 79.21% and phenol content of 74.93% respectively. The result has fulfilled the quality standard of textile industry wastewater treatment.

Autonomous Visual Servoing for Alternately Working Arm Robots Tresna Dewi; Rusdianasari Rusdianasari; RD Kusumanto; Siproni Siproni; Fradina Septiarini; M. Muhajir
Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Vo. 6, No. 3, August 2021
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/kinetik.v6i3.1285

Robots have infiltrated many aspects of human life up to this point, and with the term Industry 4.0, robots have even become the primary workforce in various factories. This condition necessitates that the robots collaborate without clashing. This paper discusses the application of two arm robot manipulators working alternately in sorting agricultural products. The proposed method employs simple image processing to detect the object and becomes the input to the system to control the robots. The effectiveness of the proposed method is enhanced by the application of a Fuzzy Logic Controller to smoothen robots’ joints motions. The average time required by the robot to finish their task from detecting to returning to standby position is 11.76 s for green tomatoes and 12.86 s for red tomatoes. The experimental results show that the proposed method is effective in controlling two robots to pick and place agricultural products using visual servoing.

Characterization of Palm Shell-Derived Bio-Oil Through Pyrolysis Leila Utarina; Rusdianasari Rusdianasari; Leila Kalsum
Journal of Applied Agricultural Science and Technology Vol. 6 No. 2 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Lignocellulosic biomass is a renewable resource used to produce energy, fuels, and chemicals. This study aimed to determine the effect of pyrolysis temperature on product yield and product characterization of bio-oil. In this study, palm shells were selected and prepared as raw materials for bio-oil production. Palm shells were first soaked in 10% HCl and then pyrolyzed at temperatures of 300 oC, 350 oC, 400 oC, and 450 oC in a fixed bed reactor. Afterward, the reactor will emit smoke which later will condense into bio-oil. The experimental results show that a temperature of 450 oC will be a better choice for higher bio-oil yields (44.59%). The characteristics of the bio-oil obtained are density (905 – 1015.17 kg/m3), Kinematic Viscosity (1.21 – 1.5 mm2/s), and flash point (60 – 68.7 oC).

Co-Authors Ahmad Fudholi Aida Syarif Aria Yopianita Devita Utami Mardiani Fradina Septiarini Haryadi Haryadi Herawati Budiastuti Ibnu Hajar Indri Ariyanti Leila Kalsum Leila Utarina Lukmanul Hakim M. Muhajir Maryam Seyaski Fitria Moulita, RA Nurul Muhammad Taufik Muhammad Yerizam Mustain Zamhari Nira Aulia Hanifah Nurhamida Nurhamida RD Kusumanto Siproni Siproni Tresna Dewi Yohandri Bow Yohandri Bow

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