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Specta Journal of Technology

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Published by Institut Teknologi Kalimantan

ISSN : 25492713 EISSN : 26229099 DOI : https://doi.org/10.0610/specta.v2i3

Core Subject : Science, Social, Engineering,

Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Environmental Science

SPECTA journal is published by Lembaga Penelitian dan Pengabdian kepada Masyarakat, Institut Teknologi Kalimantan, Balikpapann Indonesia. SPECTA is an open-access peer reviewed journal that mediates the dissemination of academicians, researchers, and practitioners in the field of Physics, Mathematics, Mechanical Engineering, Electrical Engineering, Chemical Engineering, Materials and Metallurgy, Civil Engineering, Industrial Engineering, Naval Engineering, Urban Planning, Informatics, Information System, Environmental Engineering, and Ocean Engineering. SPECTA accepts submission from all over the world, especially from Indonesia.

Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)

Articles 13 Documents

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Search results for , issue "Vol. 6 No. 3 (2022): SPECTA Journal of Technology" : 13 Documents clear

Pemodelan dan Simulasi Shunt Active Power Filter (SAPF) Menggunakan Metode PI-GWO pada Sistem Tenaga Listrik IEEE 14 Bus Achmad Rifa’i; Happy Aprillia; Yun Tonce Kusuma Priyanto
SPECTA Journal of Technology Vol. 6 No. 3 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

Current technological developments generally use sophisticated equipment which is categorized as a non-linear load. The massive use of non-linear loads causes side effects on the quality of electric power. Electric power systems that are connected to non-linear loads will experience distortion in current and voltage by harmonics due to the engineering of voltage waveforms due to the installation of many converters operating at frequencies that do not match the utility frequency of 50 or 60 Hz. Taking into account the great benefits for humans, the use of non-linear loads cannot be reduced but can be applied by keeping non-linear loads operating with good quality electric power. Therefore, harmonic filter equipment is needed to reduce harmonics. Passive filters and active filters can be used where active filters have many advantages compared to passive filters because they can adjust to varying working frequencies. To obtain more optimal harmonic reduction results, an active filter Shunt Active Power Filter (SAPF) using a PI controller tuned with the Gray Wolf Optimizer (GWO) optimization method is designed. The SAPF PI-PSO method is used as a comparison. The SAPF experiment on the IEEE 14 bus test system, PSO obtained better ITAE error results and computation time than GWO. The ITAE value and PSO computing time were 108.5821 second and 4255.097192 second, respectively, while GWO obtained 109.0172 second and 4379.461 second. However, the GWO-tuned SAPF is more able to reduce the THD of the 12 bus current on the IEEE 14 bus system by 13%.

Kajian hidrologi dan hidrogeologi daerah penambangan, studi kasus lipatan sinklin di Sungai Mahakam, Kutai Kartanegara , Provinsi Kalimantan Timur Shalaho Dina Devy; Ibnu Hasyim
SPECTA Journal of Technology Vol. 6 No. 3 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

Changes in land use due to open pit mining operations, indirectly affect the hydrological cycle. Open pit mining operations, especially the open pit method, greatly affect subsurface conditions, such as lithology and hydrogeology. The purpose of this study was to analyze the hydrological and hydrogeological conditions before mining on syncline folds in the Mahakam river. This research is an inductive research with an analytical approach which includes the study of land use, hydrological conditions, geology, and hydrogeology. The land use of the research area is dominated by plantations (84%) with a rain catchment area of 995.9 hectares. The results of the hydrological analysis yielded daily rainfall values with a 5-year recurrence of 208.4 mm, annual rainfall of 2.177.32 mm, runoff 238.63 mm/yr, evapotranspiration 1,031.16 mm/yr and groundwater recharge 907.53 mm/th. The lithology of the study area is dominated by sandstone and clayey siltstone. The results of the aquifer test (pumping test) showed that the average K value (hydraulic conductivity) of sandstone was 1.33 × 10-2 m/s and claystone was 6.77 × 10-10 m/s. The results of the hydrogeological analysis show that the top layer is an aquitard, below it is an aquifer, then an aquitard, and the bottom is an aquiclude. The type of aquifer in the study area is classified as semi confined aquifer

Visualization Power BI Penggunaan Aplikasi Digides dengan Pemerataan Akses Internet di Jawa Barat Slamet Ramadhani; Edita Toding Sirenden; Intan Listra Della Megoraya; Yasmin Amanda Putri
SPECTA Journal of Technology Vol. 6 No. 3 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

Internet technology has changed the face of world communication, which has long been dominated by non-computer digital devices, into global computer communications. This condition is considered to have good implications for the digital economy. However, the uneven distribution of the internet so that some districts are not covered by the internet network is a problem to support the existence of a Digital Village.. The research method used consists of several stages, including; define literature study, determine data, determine problems, data preparation, data warehouse, exploration of BI power, data visualization and implementation. The factor causing the lack of optimization of the use of the Digides Application is due to the lack of distribution of BTS and internet access in the city of West Java. The attitude and policies issued by the government towards the law governing the equitable distribution of quality village growth development in Law no. 6 of 2014 concerning Villages has provided Legal Standing and a strategic foundation for the development and empowerment of rural communities, towards independent and prosperous villages.

Strategi Optimalisasi Kemampuan Lahan dalam Penyediaan Air Tanah di Kota Balikpapan Dwiana Novianti Tufail; Rahmayani
SPECTA Journal of Technology Vol. 6 No. 3 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

The growth of Balikpapan City can be seen from the rapid development. The influence of land use change and reduced water catchment areas is one of the problems that occurs in Balikpapan City. It is known that the area of forest land use in 2014 was 22,856.95 ha, while in 2018 the area of forest land use decreased to 18,418.76 ha. This study aims to analyze the level of land capability groundwater supply and determine strategies for optimizing groundwater supply land capabilities in Balikpapan City. Based on the results, ability of land in providing groundwater in Balikpapan City is divided into 4 classifications. The strategy of optimizing land capabilities providing groundwater in Balikpapan Utara is the application infiltration wells to improve groundwater conditions and maintain the stability of high groundwater levels. In Balikpapan Selatan, Balikpapan Tengah and Balikpapan Kota, additional infiltration capabilities are carried out such as the creation of Biopori Infiltration Holes (LRB) and Biopori Infiltration Channels (SPB), in Balikpapan Timur strategies are environmental pollution control and groundwater quality management, while in Balikpapan Barat, the strategies is maintain land capabilities maintaining the quality of water and controlling the conversion forest functions into built-up land.

Pengembangan Sistem Informasi Manajemen Bahan Baku Makanan dan Penggajian Karyawan Berbasis Website Menggunakan Metode Extreme Programming Muhammad Rosyid Ridho; Nur Fajri Azhar; Tegar Palyus Fiqar
SPECTA Journal of Technology Vol. 6 No. 3 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

Kanas Kitchen Store is one of the shops engaged in the food and beverage sector located in the city of Balikpapan. Currently, all the processes of collecting raw materials and employee payroll are still recorded manually which results in delays in recording. Therefore, this study proposes the Development of a Website-Based Food Raw Material Management and Payroll Information System. Development of raw material management and payroll information systems for employees using the Laravel framework and MySQL databases, and implementing the Extreme Programming method. The stages in Extreme Programming start from planning, designing, coding, and testing. There are several features in this study, namely, raw material features, employee attendance features, and employee payroll features. In the implementation of the design of the raw material management information system and employee payroll, user stories were obtained from the results of interviews with the needs of the system totaling 35 user stories, then continued in designing database designs and use case diagrams. In completing the development of the website information system raw material management and employee payroll with a total of 35 user stories and implemented as many as 5 iterations. The extreme programming method can be implemented in research on the development of raw material management systems and employee payroll. The results of the research on the application of the Food Raw Material Management Information System and Employee Payroll are proven by the results of testing with the unit testing method and can be carried out in accordance with meeting the user acceptance test.

Analisis Dampak Lingkungan Pengolahan Limbah Fly Ash dan Bottom Ash dengan Metode Siklus Daur Hidup (Life Cycle Assessment/LCA) di Industri Pembangkit Listrik Tenaga Uap Intan Dwi Wahyu Setyo Rini; Madah Maria; Eka Masrifatus Anifah; Andika Ade Indra Saputra; Adrian Gunawan; Ahmad Ibnu Arobi
SPECTA Journal of Technology Vol. 6 No. 3 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

PLTU Teluk Balikpapan with a 2 x 110 MW capacity generated fly ash and bottom ash as its waste. The waste was treated by backfilling on open land or called a landfill. The landfill was not effective because it required a large area to accommodate the waste. This research aimed to analyze waste treatment's environmental impact and identify the best scenario from three fly ash and bottom ash treatment options. The first scenario was the existing treatment that used landfill, the second was utilization into paving blocks, and the third was utilization into compost. The method in this research used Life Cycle Assessment (LCA) method. The LCA stages referred to ISO 14040 of 2006 which consists of objectives and scope, inventory analysis, impact analysis, and interpretation. The results of the analysis of the contribution of impacts on the environment with Scenario 1 obtained three impacts with the highest value, namely natural land transformation with a value of 15.8 then climate change with a value of 9.5, and particulate matter formation with a value of 6.8. Furthermore, the calculation shows that the best scenario for fly ash and bottom ash waste treatment was scenario 3: processing into compost.

Analisis Kualitas dan Kuantitas Air Limbah Domestik di Institut Teknologi Kalimantan (Studi Kasus: Gedung B) Chandra Suryani Rahendaputri; Reza Mahendra; Ryan Dwi Prakoso; Wanda Dwi Anggraini; Muhammad Airy Ichlasul Rana; Budiani F. Endrawati
SPECTA Journal of Technology Vol. 6 No. 3 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

Disposal of wastewater originating from domestic and industrial activities into water bodies can cause environmental pollution if the quality of the wastewater does not meet wastewater quality standard. Kalimantan Institute of Technology (ITK), is a campus that supports the ¬eco-campus program. One of the eco-campus criteria is wastewater treatment. Therefore, in this study the amount of greywater wastewater from the sink of Building B ITK and the quantity of pH, TSS and phosphate parameters will be studied using the sampling method and sampling test according to SNI, to then formulate the treatment. In the preliminary research it was found that the pH level was 7.04 when tested immediately, and decreased to 5.81 when the sample was left for two days. The TSS level was 0 mg/L and the phosphate level was in the 0,080 mg/L to 0,0807 mg/L. All three parameters are still below the quality standard. Therefore, the greywater from the sink waste in Building B ITK can be processed to be utilized directly without treatment but not for potable.

Perbandingan Metode Naïve Bayes dan C4.5 Klasifikasi Status Gizi Bayi Balita Alter Lasarudin; Hilmansyah Gani; Misran Tomayahu
SPECTA Journal of Technology Vol. 6 No. 3 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

In supporting good services, an orderly, neat and meticulous work procedure are needed. So that information will be produced quickly, precisely and accurately. In health institution, there is a lot of data which increase every year. One of them is data on toddler growth and development. However, the excessive data have consequences more difficult to learn the data were only used as archives. The use of data mining techniques is expected to help in overcoming the imperfent development of toddlers. In this study, researcher compared the classification techniques of performance methods (C4.5) and Naïve Bayes. The attributes used in this research consist of Gender, Age, Weight, Body Length, Region and Growth with 500 data. The results of the research conducted, based on the accuracy and recall values of Naive Bayes were higher than the accuracy value of C4.5 with an accuracy value 94.20% for Naive Bayes, and C4.5 with an accuracy value of 85.80%. Although, in this study the Precision level is higher Naïve Bayes which is 94.20% compared to C4.5 which is 85.80%. The final result of this research is that the Naïve Bayes method is better used than the decision tree method. Keywords: Data Mining, Classification, Naïve Bayes, C4.5

Analisis Perencanaan Kebutuhan Pupuk Bersubsidi Kelompok Tani Makmur Abadi Kutai Kartanegara Budiani Fitria Endrawati; Sahid Fajar Pamungkas; Ahmad Jamil
SPECTA Journal of Technology Vol. 6 No. 3 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

The Makmur Abadi Farmers Group (KTMA) is an organization in the field of oil palm plantations located in Kutai Kartanegara Regency. Problems in planning the availability of subsidized fertilizers interrupt the KTMA plantation activities, such as planning for subsidized fertilizers that have not been planned systematically and often subjective planning of subsidized fertilizers is carried out, so that KTMA has difficulty designing scientific fertilizer needs planning. Based on the calculations, the results of planning using EOQ resulted in ordering 25 sacks of urea fertilizer with 11 orders, reorder point of 254.4 kg, safety stock of 2,040 kg, and TIC of Rp. 2,224,117. Ordered SP-36 fertilizer with EOQ of 23 sacks with 11 orders, reorder point of 254.4 kg, safety stock of 420 kg, and TIC to Rp. 2,169,368. Ordered ZA fertilizer with EOQ of 15 sacks with 12 orders, reorder point of 181.8 kg, safety stock of 1,800 kg, and TIC to Rp. 1,508,527. Ordering NPK fertilizer with EOQ of 50 sacks with 11 orders, reorder point of 512.7 kg, safety stock that can be set at 1,515 kg, and TIC of Rp 4,507,127. Ordering organic fertilizer with EOQ of 30 sacks with 18 orders, reorder point of 512.7 kg, safety stock of 2,295 kg and TIC to Rp 4,019,187.

PEMBANGUNAN SISTEM INFORMASI MANAJEMEN SURAT MENYURAT DENGAN METODE PERSONAL EXTREME PROGRAMMING (PXP) DI LINGKUNGAN INSTITUT TEKNOLOGI KALIMANTAN Muhammad Kharisma; Muhammad Fathurrohim; Bima Catur Apriadi
SPECTA Journal of Technology Vol. 6 No. 3 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

Today, every company and organization must deal with the responsibility of having to use information technology. The current state of information technology is generally intertwined with all activities, regardless of whether they are carried out within a business or an organization. Information technology is a collection of tools used to handle information processing jobs and process information. Susilo Bambang Yudhoyono, the sixth president of the Republic of Indonesia, opened the Kalimantan Institute of Technology on October 6, 2014, the same day it was formed as one of Indonesia's newest state colleges in the province of East Kalimantan. The Kalimantan Institute of Technology is still developing higher education at this time. ITK has been working to prepare the organization and work procedures since 2012 by incorporating current resources and establishing standardized administrative systems. Organizational structures and work processes are carried out in accordance with established protocols, namely by adopting a structure and process that adheres to the principles of Good University Governance (GUG). The accomplishment of the organization's aims and objectives is guaranteed by the right organization and work procedures within the organization and work procedures. To ensure that all roles work together to fulfill ITK's objectives, resource management attempts to make clear the lines of coordination and synergy in the organization and work processes. Personal Extreme Programming (PXP) is the methodology used in this study. Literature review, problem formulation, requirements, planning, coding, design, system testing, retrospective, deployment, and user training are the processes of putting this research into practice. The publication in the journal J-Sakti (Journal of Computer Science & Informatics) with authorized rank 4 and the posting of one scientific paper on the LPPM ITK website are the research's output goals. The results obtained from this study are a Website-based Correspondence Information System that accommodates the performance of education staff in the Kalimantan Institute of Technology.

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Contact Name
Syamsul Mujahidin

Contact Email
syamsul@lecturer.itk.ac.id

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+6285931379488

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spectajournal@itk.ac.id

Editorial Address
Ruangan LPPM Gedung A lantai 2, Kampus ITK, Jl Soekarno Hatta KM 15, Karang Joang, Balikpapan, Balikpapan Utara, KALTIM

Location
Kota balikpapan,

Kalimantan timur

INDONESIA

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Syamsul Mujahidin

Contact Email syamsul@lecturer.itk.ac.id

Phone +6285931379488

Journal Mail Official spectajournal@itk.ac.id

Editorial Address Ruangan LPPM Gedung A lantai 2, Kampus ITK, Jl Soekarno Hatta KM 15, Karang Joang, Balikpapan, Balikpapan Utara, KALTIM

Location Kota balikpapan, Kalimantan timur INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Syamsul Mujahidin

Contact Email
syamsul@lecturer.itk.ac.id

Phone
+6285931379488

Journal Mail Official
spectajournal@itk.ac.id

Editorial Address
Ruangan LPPM Gedung A lantai 2, Kampus ITK, Jl Soekarno Hatta KM 15, Karang Joang, Balikpapan, Balikpapan Utara, KALTIM

Location
Kota balikpapan,

Kalimantan timur

INDONESIA