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All Journal Jurnal Ilmiah Teknik Kimia Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika
Khusnul Khotimah
Universitas Pamulang
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering

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Daun Pepaya (Carica Papaya) dan Serai (Cymbopogon citratus) Sebagai Pestisida Nabati Belalang Kayu (Valanga nigricornis) Rifkah Akmalina; Maya Lukita; Khusnul Khotimah; Herlin Handini; Rismawati Rismawati
Jurnal Ilmiah Teknik Kimia Vol. 7 No. 2 (2023): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v7i2.27865

Abstract

The use of chemical pesticides to control grasshopper attacks harms the environment and people. Therefore, botanical pesticide as an alternative to a safer environment is needed. This study aims to determine the effectiveness of papaya leaves (Carica papaya) and lemongrass (Cymbopogon citratus) combination extracts against Javanese grasshopper based on maceration time and concentration variations, and to determine its compounds. The maceration time was 3, 5, and 7 days, and 30, 50, and 70% concentrations were used. The study showed that a 7 days maceration with 70% extract concentrations is the most effective to kill the Javanese grasshopper with an average mortality rate of 100%. Botanical pesticides are known to contain tannins, flavonoids, terpenoids, steroids, and citronellal. The presence of these compounds in the botanical pesticides causes Javanese grasshoppers which eat plants that have been sprayed to experience death due to poisoning and continuous loss of fluid.
Perancangan dan Implementasi Aplikasi Internet Billing untuk RT/RW Net pada CV Cipta Semesta Lintas Maya Muhamad Ibrahim Fajri; Naufal Rifat Aqillah; Khusnul Khotimah; Wasis Haryono
Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Vol. 3 No. 4 (2025): Juli: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jupiter.v3i4.944

Abstract

The rapid growth of RT/RW Net-based internet services among the community has driven the need for an integrated, efficient, and easy-to-use billing system. The self-help RT/RW Net model often faces challenges in terms of administrative management, especially related to customer recording, billing, and financial reporting which are still done manually. Common problems faced by partners are payment systems that have not been digitized and minimal transparency in data collection and tracking of customer transactions. The purpose of this activity is to design and implement a web-based billing application built using the Laravel framework. This application is designed to facilitate the process of managing customer bills, monitoring internet service usage, and preparing financial reports automatically and in a structured manner. The method of implementing the activity includes the system design stage, training partners in using the application, and assistance in direct implementation in the RT/RW Net operational environment. The results of the activity show that the developed system has succeeded in automating most of the billing process and increasing the efficiency of administrative management by up to 80%. In addition, this system also has a positive impact on increasing transparency and accuracy of customer data. Suggestions for further development include the addition of automatic payment features through integration with payment gateways, as well as improving the user interface to make it more responsive and user-friendly.
Co-Authors Haryono, Wasis Herlin Handini Maya Lukita Muhamad Ibrahim Fajri Naufal Rifat Aqillah Rifkah Akmalina Rismawati Rismawati