E-Journal Politeknik Negeri Cilacap
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Pembentukan Komposit Zeolit X - Bayerit dari Perlakuan Abu Sekam Padi dan Aluminium Kemasan Produk Pangan dalam Larutan NaOH Teknis pada Suhu Ruangan
Get PDFVarious research efforts have been carried out to obtain efficient zeolite synthesis methods, including the use of waste as the main ingredient or carried out at room temperature. One type of zeolite that has been synthesized at room temperature is zeolite X (ZX) within a minimum of 28 days using synthetic chemicals. The purpose of this study is to explore how ZX can be formed from waste materials and NaOH technical grade solution (TGS) at room temperature for 40 days without stirring treatments. The waste materials are rice husk ash from the traditional red brick industry, aluminum beverage cans, and food packaging aluminum waste. The materials were homogeneously mixed with the NaOH TGS in such a way as to produce a mixture with a mole ratio of 7.23Na2O : 0.26Al2O3 : 1SiO2 : 280H2O, with mole ratios of Na2O/H2O and Al2O3/SiO2 that were 30% higher than the literature for ZX synthesis, respectively. The results of characterization showed that the treatment yield was ZX along with the presence of the bayerite phase, which had been formed since the 20-day observation period. The use of excess Na2O/H2O and Al2O3/SiO2 mole ratios in this study impacts the formation of bayerite first and the ability of dissolved silica to condense, thus slowing the crystallization of ZX. The result of this study led to the new finding that zeolite-bayerite composite can be synthesized directly in a simple, inexpensive, and environmentally friendly manner, where the composite materials have been reported as catalysts and adsorbents
Zooplankton Sebagai Bioindikator Lingkungan Perairan: Studi Kasus Perairan Teluk Doreri Manokwari, Provinsi Papua Barat
Get PDFThe zooplankton ecological index which includes diversity, uniformity and dominance is one approach used to determine the condition of the aquatic environment. This study aims to determine the environmental status of the waters based on zooplankton ecological index which includes diversity, uniformity, and dominance in Doreri Bay water, Manokwari. This study was conducted in September 2020 at two 5- and 10-meter stations depth from the water\u27s surface. Water quality measurements and water sampling were carried out at both stations thrice for 1 week. Water sampling to determine individual zooplankton used a 5 L volume Van Dorn. Temperature, salinity, and pH of the waters were measured successively using a rod-type thermometer with a 50 °C scale, a handheld refractometer RHSN-10ATC, and a pH meter of Orion A215 type. The measurement results obtained the temperature, salinity, and pH values ranging from 29.1 – 29.9 °C with an average of 29.5 °C, 30 – 35 ppt with an average of 33.2 ppt, and 7.9 – 8.3 with an average of 8.1, respectively. The diversity, uniformity, and dominance indexes ranged from 1.5 – 2.2, 0.7 – 1.0, and 0.1 – 0.4, respectively. The ecological status of Doreri Bay waters based on the diversity, uniformity, and dominance indexes show that the components of the food chain are still complete, including the producer and consumer groups and reducers. The effect of liquid waste from land activities around the bay has not disturbed the zooplankton
Pemberdayaan Kelompok Wanita Tani “Sri Rejeki†Melalui Budidaya Tanaman Sayuran di Bantul, DIY
Get PDFWomen have an important role in a family. In supporting their role, many women are active in community organizations, one of which is the Women Farmers Group (KWT). However, KWT is often used only for meeting women without any productive activities. Therefore, through this community service program (PKM), it is hoped that it can raise independence for mothers to have productive. The partner in this PKM activity is KWT "Sri Rejeki" which is located in Bantul Regency. The PKM location was chosen with the consideration that KWT had quite a large yard of land and was not managed properly. Based on the situation analysis, it is known that the partners\u27 problems include: yards that have not been managed properly, the activities of the women who have not been productive, the desire of the partners to provide knowledge and skills to members regarding the cultivation of horticultural. The solution to this problem is to carry out participatory extension and empowerment actions by combining direct practices of cultivation horticultural with modern methods. The type of program carried out is to train KWT members on modern cultivation of horticultural crops. After the activity was completed, an evaluation was carried out that the partner\u27s knowledge, skills in plant cultivation and ability to use the land increased. As for the continuation of this PKM activity, it is hoped that the yard will become a productive garden, and partners will have a creative and productive spirit in utilizing their free time
Pelatihan Komputer dan Penggunaan Microsoft Word Pada Siswa Berkebutuhan Khusus Di Homeschooling Lantaburo Kabupaten Tangerang
Get PDFHomeschooling (HS) Lantaburo is one of the alternative schools in the city of Tangerang which has a target of fostering and developing life skills for Students with Special Needs (ABK) so they can meet the basic needs of Activity of Daily Living (ADL) so that one day they can be independent and empowered in society. In implementing the ADL program, there are obstacles, namely the difficulty of keeping up with advances in computer technology as a medium for supporting the learning of ABK students. Based on these problems, this community service aims to introduce ABK students to operating computers and teach them how to use Microsoft Word features that can be used to learn typing and others. The method used is hands-on training on basic introduction to computers and Microsoft Word applications. Of the 26 students with special needs at HS Lantaburo who were given the opportunity by the teacher to take part in the training, there were 3 students namely Autism, Dyslexia, and Down Syndrome (DS) due to limited computer equipment and training time. The context of the training is based on the participant\u27s ability to answer every question posed in the training, starting from managing text, fonts, data storage, etc. Meanwhile, making tables still requires frequent practice. The results of the training were that Autism and Dyslexia student participants had the same range of intelligence so they could follow the training well compared to DS participants. This can be seen from the results of the evaluation carried out after the training activities. ABK students can improve their ability to operate computer equipment and Microsoft Word software, including the ability to type, edit, and format documents. Increase motivation to study, more confidence and independent in operating computers and MS Word applications
Spatial Analysis of Flood Prone Areas in Fena Leisela Subdistrict, Buru Regency
Get PDFFena Leisela sub-district is often hit by floods in the rainy season. Floods that often occur in the Siwalalat sub-district are caused by the overflowing of the Waegeren river. The research used DEMNAS data and analysis using the Topographic Wetness Index method. The results of the inundation potential analysis are divided into three classes, namely low potential class with an area of 92,196.09 or 63.04%, medium class of 45,769.48 ha or 31.29%, and a high potential class of 936.12 ha or 5.67%. Waelana-Lana village (3,291.78 ha), Wamana Baru (1,349.33 ha), and Waspait (936.12 ha) are villages that have the largest area in the high flood hazard class in Fena Leisela Sub-district. In the medium flood class, Raheriat village (8,243.39 ha) is the village that has the largest area presentation compared to other villages and for the low flood hazard class, Wamlana village (14,811.98 ha), Waemite village (12,305.48 ha) and Waelana-lana village (1,680.33 ha) are the villages that have the largest area compared to other villages in Fena Leisela Sub-district. The results of this study are expected to be a reference for the government and the community in handling future floods to minimize the impact that occurs
Traffic Image Analysis Based on Stacked Denoising Autoencoder Neural Network
No full textThis study aims to explore major neural network models - Stacked Denoising Autoencoder (SDAE), Deep Belief Network (DBN), Backpropagation - that have recently garnered attention and propose the most suitable and reliable artificial neural network model for real-time road traffic information collection. In this study, to enhance the reliability of experimental results, numerous experiments were conducted under identical conditions (such as parameter values and network configuration) by setting different initial values for the weight vector. The results of the experiments were statistically validated to draw conclusions. The research results showed that the SDAE model exhibited the most superior performance, while the accuracy of the DBN was somewhat lower compared to the SDAE model. On the other hand, the Backpropagation model demonstrated a relatively low predictive accuracy compared to both models, particularly showing a significant influence of the initial value
Pengaruh Variasi Holding Time pada Proses Pack Carburizing dengan Arang Tempurung Kelapa Barium Carbonat Terhadap Sifat Fisik dan Mekanik Baja ST 42
Get PDFIron-based production machine components are chosen to support productivity. Steel is a metal material that is easily found on the market, but it has not fulfilled the desires of consumers in the market. This steel can be hardened by heat treatment (heat treatment). The surface treatment process is carried out to obtain the desired hardness, this can be done by increasing the carbon (C) element in the steel material, the carbon content in the standard steel structure is 0.3% - 0.59% the carbon content will have an effect. on hardness, one way to increase the element carbon (C) in steel and increase the hardness on its surface is by carburizing. This research will examine the hardness level of low carbon steel by using a pack carburizing process with different times of 2; 2.5 and 3 hours and the quenching process with pure water media.. The purpose of this study was to determine the effect of holding time on the pack carburizing process with coconut shell charcoal - barium carbonat on the hardness value of ST 42 steel. Besides that for effect of holding time on the pack carburizing process with coconut shell charcoal on the microstructure. There are differences in the surface hardness and microstructure values ​​ before and after the carburizing process. Where the highest hardness value occurs at a holding time of 3 hours with a hardness value of 872.9 HVN or an increase of 382% of the raw material and is supported by the dominance of the martensite phase which is more and more evenly distributed. Compared to the ST 42 steel raw material before the pack carburizing process was carried out, the hardness value was 174.8 HVN. A dominant microstructure consisting of a ferrite phase and a little bit of pearlite dominance
Efektifitas Limbah Kulit Nangka Dan Kotoran Sapi Pada Pupuk Organik Padat Dengan Fermentasi Menggunakan Bioaktivator Effective Mikroorganisme 4 (EM4)
Get PDFThe jackfruit chip industry in Cilacap produces one ton of processed per week. This production, besides producing processed jackfruit chips, it also produces waste in the form of jackfruit skin and jackfruit. If it is not processed and if it is disposed of into the environment, it will take a long time to decompose and cause a bad smell to humans. To overcome this waste, it is made into organic fertilizer. Organic fertilizers are fertilizers derived from various natural ingredients such as animal manure, animal body parts, plants, which are rich in organic compounds and are good for the use of soil enrichment. This study aims to determine the effectiveness of cow dung and fruit waste in the manufacture of solid organic fertilizer by fermentation using the EM4 bioactivator, which was tested with chemical parameters such as C-Organic, water content, temperature and pH. The manufacture of solid organic fertilizer can be done by decomposing jackfruit skin waste and cow dung waste by fermentation using EM4 and molesses with ratio 1 :1 then observed for four weeks. Based on the research results, it can be seen that the temperature, pH, water content and C-organic content are in accordance with the quality standards of organic fertilizers. The highest organic C content was found in the second week of 60.87 and then decreased to 37,58
Indonesia
Get PDFPreeclampsia is a disease of pregnant women, causing many complaints, including dizziness. Massage is the right solution to reduce dizziness since the use of analgesic drugs is not recommended. Submission of massage information can be more effective through digital technology. The purpose of this research is to build an application based on Augmented Reality (AR) as a guide for facial massage movements for midwives and pregnant women to deal with complaints of dizziness for pregnant women. The method used is the Multimedia Development Life Cycle (MDLC), which consists of the stages of making a concept, making a design, collecting materials, combining materials, testing, and distribution. Black box testing on 10 scenarios produces a value of 100%, which means the application can run properly. In addition, usability testing using the System Usabilities Scale (SUS) method shows a value of 69.5, which means that the application has the "good" criteria and is acceptable to users.Preeklamsia adalah salah satu penyakit ibu hamil, menyebabkan banyak keluhan, termasuk pusing. Pemijatan merupakan solusi yang tepat untuk mengurangi pusing, karena penggunaan obat analgesik tidak dianjurkan. Penyampaian informasi pemijatan dapat lebih efektif jika melalui teknologi digital. Tujuan penelitian ini adalah membangun aplikasi berbasis Augmented Reality (AR) sebagai panduan gerakan pijat wajah bagi bidan dan ibu hamil untuk mengatasi keluhan pusing bagi ibu hamil. Metode yang digunakan adalah Multimedia Development Life Cycle (MDLC), di mana terdiri dari tahapan pembuatan konsep, pembuatan desain, pengumpulan bahan/material, penggabungan bahan, pengujian, dan distribusi. Pengujian black box pada 10 skenario menghasilkan nilai 100%, yang berarti aplikasi dapat berjalan dengan baik. Selain itu, pengujian usabilitas dengan metode System Usabilities Scale (SUS) menunjukkan nilai 69,5, yang berarti aplikasi berkriteria “Bagus (good)†dan dapat diterima pengguna
Penerapan Location Based Service (LBS) dan QR Code Detection pada Aplikasi Pemetaan dan Penjemputan Retribusi Parkir Kendaraan Berbasis Android
Get PDFOne source of regional income for Cilacap Regency is the management of vehicle parking lots. Currently, parking area management is carried out by recording the identity of the parking location based on the street name, while the withdrawal of parking fees is carried out by towing officers who come to the parking location and then record it in a book. The current management of parking lots is still inaccurate because there are several street names that have more than one parking area which results in data redundancy. The conventional parking fee collection system causes frequent discrepancies in reports due to the potential for misuse of parking fees. The absence of tools that can be used by related agencies to control reports is the cause of the problem. The research objective is to develop an information system by applying LBS technology which functions to detect parking points precisely and QR Code Detection which functions to detect the identity of parking attendants. System development uses the ADDIE model. The results of the research are an information system for mapping parking lots and picking up parking fees based on Andorid which can help manage vehicle parking lots which includes mapping the location of parking lots and picking up vehicle parking fees