Garuda - Garba Rujukan Digital

All

Specta Journal of Technology

sjt
Website

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 325 Documents

22 23 24 25 26

Analisis Intensitas Dampak Kejadian Longsor Di Kelurahan Selili, Kota Samarinda Tamariska Anawati Hasibuan; Achmad Ghozali
SPECTA Journal of Technology Vol. 6 No. 2 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

Kelurahan Selili, Kota Samarinda merupakan suatu kawasan yang memiliki potensi bencana longsor. Berdasarkan pada tahun 2015-2022 bahwa Kelurahan Selili memiliki 16 kejadian longsor dan merupakan lokasi yang memiliki kejadian terbanyak di Kota Samarinda. Dampak kejadian longsor di Kelurahan Selili tersebut mengakibatkan kerugian dan kerusakan serta korban jiwa. Oleh maka dari itu peneliti ingin mengetahui seberapa besar intensitas dampak kejadian longsor di Kelurahan Selili, Kota Samarinda. Metode dalam penelitian ini adalah dengan menggunakan analisis skoring overlay. Adapun Variabel dalam penelitian ini yaitu Jumlah kejadian longsor, jiwa terpapar, kerugian kerusakan rumah, kerugian kerusakan fasilitas umum serta luasan longsor. Setelah dilakukan analisis s maka didapatkan hasil penelitian didapatkan melalui analisis Skoring bahwa intensitas dampak kejadian longsor kelurahan selili terdiri dari intensitas dengan rendah hingga sedang. Intensitas rendah berada pada titik 2-8, titik 10, titik 12, dan titik 14, sedangkan kategori sedang berada pada titik 1, titik 9, titik 11, dan titik 14.

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.

Pengaruh Luas Permukaan Elektroda terhadap Produksi Biolistrik dengan Metode Sediment Microbial Fuel Cells (SMFCs) menggunakan Substrat Lumpur Instalasi Pengolahan Air Lindi Umi Sholikah; Eka Masrifatus Anifah; Muhammad Nur Ibnu Lutfi Saud; Indah Chairun Nikmah
SPECTA Journal of Technology Vol. 6 No. 2 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

Air Lindi merupakan salah satu permasalahan yang timbul di dalam pengolahan sampah. Air lindi tersebut diolah di Instalasi Pengolahan Air Lindi yang menghasilkan lumpur yang mengandung bahan organik tinggi tetapi belum dimanfaatkan dengan baik. Lumpur yang mengandung bahan organik tinggi dapat dimanfaatkan sebagai substrat dalam menghasilkan biolistrik dengan metode Sediment Microbial Fuel Cells (SMFCs). Metode SMFCs memanfaatkan aktivitas mikroorganisme dengan konversi zat organik menjadi biolistrik. Tujuan dari penelitian ini adalah mengetahui pengaruh luas permukaan elektroda dalam menghasilkan biolistrik dimana elektroda tersebut dapat berperan sebagai transfer proton dan elektron. Penelitian ini menggunakan sistem batch reactor yang dioperasikan secara aerob selama 20 hari. Elektroda yang digunakan adalah seng dan karbon dengan variasi luas permukaan 20 cm2 dan 40 cm2. Hasil penelitian menunjukkan bahwa nilai power density maksimal sebesar 488 mW/m2 pada luas permukaan elektroda 20 cm2. Luas permukaan elektroda yang menghasilkan power density optimal adalah 20 cm2 akibat besaran nilai daya listrik terhadap luas permukaan anoda yang digunakan. Nilai power density optimal pada luas permukaan yang kecil dapat dijadikan sebagai acuan dalam efisiensi penggunaan material.

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.

SISTEM PENDUKUNG KEPUTUSAN PEMILIHAN JASA PENGIRIMAN PADA PT HM SAMPOERNA DENGAN METODE SIMPLE ADDITIVE WEIGHTING Rikiwanto sinaga; luthfia rohimah; Ani Yoraeni
SPECTA Journal of Technology Vol. 6 No. 3 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

Freight forwarder is a business partner for the company to deliver some goods to various regions in the world. The companies often face a few problems when delivering their product, such as inaccuracy of providing a delivery service by considering several factors like shipping prices, packaging of goods, time of delivery, delivery security, quality of logistic vehicles and other facilitations. This study developed a Decision Support System which used Simple Additive Weighting (SAW) method in order to obtain information on the best Freight Forwarder. It aims to help the companies to solve logistic problems and losses. Based on the calculated data, Pt Selog scores 0.9185 which is the best of alternative freight forwarder. The second place is Pt Tanto scores 0.8675. Next, PT Puninar is 0.8615 and PT WASHENG is 0.796.

Page 24 of 33 | Total Record : 325

22 23 24 25 26

Filter by Year

2017 2025

Filter By Issues

All Issue Vol. 9 No. 1 (2025): Vol. 9 No. 1 (2025): SPECTA Journal of Technology Vol. 9 No. 3 (2025): Specta Journal of Technology Vol. 9 No. 2 (2025): Specta Journal of Technology Vol. 8 No. 3 (2024): SPECTA Journal of Technology Vol. 8 No. 2 (2024): SPECTA Journal of Technology Vol. 8 No. 1 (2024): SPECTA Journal of Technology Vol. 7 No. 3 (2023): SPECTA Journal of Technology Vol. 7 No. 2 (2023): SPECTA Journal of Technology Vol. 7 No. 1 (2023): SPECTA Journal of Technology Vol. 6 No. 3 (2022): SPECTA Journal of Technology Vol. 6 No. 2 (2022): SPECTA Journal of Technology Vol. 6 No. 1 (2022): SPECTA Journal of Technology Vol. 5 No. 3 (2021): SPECTA Journal of Technology Vol. 5 No. 2 (2021): SPECTA Journal of Technology Vol. 5 No. 1 (2021): SPECTA Journal of Technology Vol. 4 No. 3 (2020): SPECTA Journal of Technology Vol. 4 No. 2 (2020): SPECTA Journal of Technology Vol 4 No 1 (2020): SPECTA Journal of Technology Vol. 4 No. 1 (2020): SPECTA Journal of Technology Vol 3 No 3 (2019): SPECTA Journal of Technology Vol. 3 No. 3 (2019): SPECTA Journal of Technology Vol. 3 No. 2 (2019): SPECTA Journal of Technology Vol 3 No 2 (2019): SPECTA Journal of Technology Vol 3 No 1 (2019): SPECTA Journal of Technology Vol. 3 No. 1 (2019): SPECTA Journal of Technology Vol 2 No 3 (2018): SPECTA Journal of Technology Vol. 2 No. 3 (2018): SPECTA Journal of Technology Vol 2 No 2 (2018): SPECTA Journal of Technology Vol. 2 No. 2 (2018): SPECTA Journal of Technology Vol. 2 No. 1 (2018): SPECTA Journal of Technology Vol 2 No 1 (2018): SPECTA Journal of Technology Vol 1 No 3 (2017): SPECTA Journal of Technology Vol. 1 No. 3 (2017): SPECTA Journal of Technology Vol 1 No 2 (2017): SPECTA Journal of Technology Vol. 1 No. 2 (2017): SPECTA Journal of Technology Vol 1 No 1 (2017): SPECTA Journal of Technology Vol. 1 No. 1 (2017): SPECTA Journal of Technology More Issue

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

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