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The Sintesis Dan Karakterisasi Karbon Aktif Dari Limbah Biomassa Reject Pulp Sebagai Adsorben Zat Warna: Reject pulp Sri Hilma Siregar; Hasmalina Nasution; Wirdati Irma; Dedi Suwito; Aulia Rizki Rahmadani; Sha-Ling Han
Acta Chimica Asiana Vol. 6 No. 2 (2023)
Publisher : The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v6i2.164

Abstract

This study examines the design of a heat exchanger (HE) in the production process of nickel ferrite (NiFe2O4) nanoparticles using the coprecipitation method by determining the shell and tube heat exchanger. The Microsoft Excel application is used as a manual calculating machine to facilitate the analysis of heat exchanger (HE) data calculations. The research flowchart starts with a literature study, preparation of tools and materials for design, calculation of the main shell and tube components, and then fabrication. Based on the calculation results, the design specification data for a shell and tube heat exchanger has a shell diameter of 0.032 m, a shell length of 4.267 mm, a thickness of 0.002 m with an initial heat transfer rate (Q) of 460130 W resulting in a heat transfer efficiency of 95.706% and an NTU of 6.165. The high effectiveness value makes the design of the one shell and tube type turbulent flow heat exchanger (HE) considered to have met the standards of high effectiveness and good performance. The design and design process is complete if the device functions properly. This study can be used as a reference for researchers in designing heat exchangers during production to make them more effective, reliable, and economical.
Mangrove Biodiversity Diversity E-Module-Based Teaching Material on Biodiversity Materials and Its Conservation Efforts at SMAN 3 Sungai Apit Purwanto, Hadi; Irma, Wirdati; Apriani, Ade; Vilmala, Berry Kurnia; Shariq, Qadir Nawaz
Journal of Natural Science and Integration Vol 7, No 1 (2024): Journal of Natural Science and Integration
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jnsi.v7i1.24609

Abstract

The purpose of the study was to develop teaching materials based on e-modules. In addition, this study also aims to evaluate students' responses to e-module products created by using the ADDIE (Analysis, Design, Development, Implementation dan Evaluation). model for their development. The sample was selected using a purvosive sampling technique on 31 students from the science department at SMAN 3 Sungai Apit. Data were collected through observation, interviews, FGDs, validation sheets and questionnaires. Following the collection of all the data, the researcher performed identification by comparing the data with many mangrove guidebooks, including the mangrove guide book.Following the collection of all the data, the researcher identified the data by cross-referencing it with many mangrove guidebooks, including the mangrove guidebook. Results show that the e-module product is very feasible to use,With the level of approval from material experts of 96.75% (very feasible), learning experts of 87.5% (very feasible), media experts of 92.77% (very feasible) ), and teachers as users of 95.14% (very feasible). From the results of the questionnaire distributed to students, a positive response of 94.51% (very good) was obtained. Students also stated that the product was very easy to use, could increase learning motivation, and could increase students' knowledge about the diversity of mangroves in Sungai Apit. Therefore, it can be concluded that the product is very feasible and received positive responses from all parties, so that it can be distributed more widely. Keywords: development of teaching materials, mangroves, e-modules
PKM Optimalisasi Sumber Belajar Rumah Tanam Herbal Medicine Berbasis Teknologi Iot Di Sekolah Alam Rumbai Irma, Wirdati; Sunaryo, Sunaryo; Farida, Fitri; Purwanto, Hadi; Syurya, Rahmah Tika; Maltia, Laura Adza
Jurnal Pengabdian UntukMu NegeRI Vol 8 No 3 (2024): Pengabdian Untuk Mu negeRI
Publisher : LPPM UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jpumri.v8i3.8136

Abstract

Rumbai Nature School is located on Jl Budi Sari, Rumbai District, Pekanbaru City. Rumbai Nature School is located in the same area as the Muhammadiyah University of Riau, namely in Pekanbaru City. The IOT technology-based medicinal plant planting program is one form of learning resource that can be used as a means for children to learn about various types of medicinal plants. Medicinal plants or what are known as biopharmaceuticals are types of plants that have medicinal functions and properties and are used to cure or prevent various diseases. The method used in this service is designed so that activities can be carried out properly in order to optimize the IOT technology-based medicinal plant greenhouse at Rumbai Nature School. This service program is dedicated to providing educational guidance to improve students' knowledge about plants that have medicinal properties, both in terms of complaints about medicinal plants and regarding the use of medicinal plants. The presence of this service activity increases the awareness of school residents about how to utilize medicinal plants and utilize IoT technology to see the development and growth of ideal medicinal plants. Therefore, training is needed to introduce the use of medicinal plants and IoT technology