Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal Journal of Marketing and Business Intelligence Journal of Green Science and Technology
Christianti, Christianti
Unknown Affiliation
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Transportation

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
PENGARUH DISIPLIN TERHADAP KINERJA PEGAWAI BAGIAN KEPEGAWAIAN PADA KANTOR KECAMATAN BATURAJA BARAT OGAN KOMRING ULU Christianti, Christianti; Mardeli, Iis
JMBI (Journal of Marketing and Business Intelligence) Vol. 2 No. 2 (2024): JMBI (Journal of Marketing and Business Intelligence)
Publisher : YHMM PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56327/jmbi.v2i2.74

Abstract

The availability of quality human resources and having a high work ethic is the main capital of an organization to be able to be on par with other organizations. The problem faced is how discipline affects the performance of Personnel Division Employees of the Personnel Division of the Baturaja Barat Ogan Komering Ulu District Office. The purpose of this study is to determine the effect of discipline on the performance of Personnel Division Employees of the Baturaja Barat Ogan Komering Ulu District Office and is useful as a reference for further research on discipline and employee performance. The hypothesis proposed, Discipline has a positive effect on the performance of Personnel Division Employees of the Baturaja Barat Ogan Komering Ulu District Office. From the results of the discussion, the correlation between discipline in efforts to improve the performance of Personnel Division Employees of the Baturaja Barat Ogan Komering Ulu District Office obtained an r figure of 0.57. After consulting with conservative standards, it lies between 0.400-0.599 which is included in the moderate correlation. So it can be said that there is a moderate influence between discipline and the performance of the Personnel Division Employees of the West Baturaja District Office, Ogan Komering Ulu.
Design Of a Feeding System with a Capacity Of 3 Tons/Hour at the Npk Plant to Improve Feeding Efficiency and Automation Tsuroyyaa, Zakiyyah; Christianti, Christianti; Trirahayu, Dhyna Analyes; Chamidy, Harita Nurwahyu
Journal of Green Science and Technology Vol 9 No 3 (2025): Journal of Green Science and Technology Vol. 9 No. 3 December 2025 Special Editio
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v9i3.10549

Abstract

An NPK plant is a facility that produces NPK fertilizer through a manufacturing process specifically designed to create fertilizer with a special formulation. However, in the production process, the feeding of raw materials is still done manually, resulting in low productivity and high operational costs. Based on production performance tests conducted on September 15, 2024, the manual system only achieved an average of 1.34 tons/hour, or 47% of the production target of 3 tons/hour. Therefore, a transportation system is needed to transport the materials, given the limitations of human labor capacity in terms of material handling and employee safety. This study aims to design an automatic feeding system to maximize production capacity up to 3 tons per hour. The system design begins with analyzing losses due to low productivity of the manual system, analyzing factory requirements, designing the main components of the feeding system, such as the hopper, weigher, and conveyor belt, equipped with an on-off control-based system to ensure consistent raw material flow. Technical design was carried out through visualization using AutoCAD and Visio software, solid flow simulation using Altair EDEM software, and economic feasibility analysis by calculating the Return on Investment (ROI) and Payback Period (POT). The calculation results show that this feeding system has a ROI of 40.8% and a POT of 2.05 years, indicating that the designed system is economically viable for implementation.
Phosphate Reduction in Laundry Wastewater Using Activated Coffee Grounds and Fly Ash as Adsorbents Sihombing, Rony Pasonang; Christianti, Christianti; Ramadhani, Nabila Dwi Nur; Martadinata, Nadya Zafirra; Adhitasari, Alfiana; Kurnia, Dianty Rosirda Dewi
Journal of Green Science and Technology Vol 9 No 3 (2025): Journal of Green Science and Technology Vol. 9 No. 3 December 2025 Special Editio
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v9i3.10651

Abstract

The growth and development of the population have significantly accelerated economic progress within society. Consequently, many new businesses have emerged, including commercial laundry services. One of the substances found in laundry wastewater, phosphate can cause eutrophication, which disrupts the balance of aquatic ecosystems. One method that can be developed to address this issue is adsorption technology. The aim of this research was to lower the phosphat content and to meet the Regulation of the Minister of Environment of the Republic of Indonesia No. 5 of 2014. The increasing number of coffee shops generates coffee grounds that have the potential to be processed into activated carbon. Additionally, fly ash a by-product of coal combustion contains silica and can be used as an adsorbent. The activated carbon is activated using 0.1 N NaOH and combined with fly ash in various compositions: 2:8, 4:6, 5:5, 6:4, and 8:2. Besides the variation in composition, contact time is also varied 30 minutes, 60 minutes, 90 minutes, 120 minutes, and 150 minutes. The observed parameters include pH and phosphate concentration at each contact time. The research results show that the optimal composition is 0.2AC:0.8FA with the highest phosphate removal efficiency of 60.3% at 150 minutes contact time and a pH of 7.1. However, the final phosphate concentration has not yet met the quality standard of 2 mg/L set by the Regulation of the Minister of Environment of the Republic of Indonesia No. 5 of 2014.
Co-Authors Alfiana Adhitasari Chamidy, Harita Nurwahyu Dianty Rosirda Dewi Kurnia Mardeli, Iis Martadinata, Nadya Zafirra Ramadhani, Nabila Dwi Nur Sihombing, Rony Pasonang Trirahayu, Dhyna Analyes Tsuroyyaa, Zakiyyah