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THE EFFECT OF TEMPERATURE VARIATION ON CONDUCTIVITY VALUE OF CATHODE LITHIUM FERRO PHOSPHATE CARBON COMPOSITE Mauliana, Metatia Intan; Zainuri, Mochamad
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 8, No 2 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v8n2.p84-90

Abstract

The lithium ferrous phosphate carbon composite (LFP/C) cathode material has been successfully synthesized using solid-state reaction method by utilizing one of the natural sources of iron rocks in Tanah Laut, Kalimantan, as the base material of Fe. Solid-state reaction method was done by using high energy ball milling tool. The LFP cathode material was prepared using a base material (Li2CO3), Fe3O4, and (NH4)2HPO4 in a ratio of 3:6:2 and 5% wt. of Citric acid as a carbon source. There were some variations of calcination temperature used under inert conditions at 400 °C, 500 °C, 600 °C, and 700 °C to determine the effect on the phase structure and electrical conductivity produced by LFP/C cathode composites. Characterization of phase structure was done by using X-ray powder diffraction (XRD), while the conductivity value of the sample was tested using Electrochemical Impedance Spectroscopy (EIS). The analysis of the diffraction pattern shows the largest composition of olivine structure formed at 700 °C at 93.3% wt. with Fe2O3 impurities of 6.7% wt. The highest conductivity value of LFP/C is shown by sampling with 500 °C calcination temperature with a total conductivity value of 5,676 x 10-3 S.cm-1.
The Effect of Temperature Variation on Conductivity Value of Cathode Lithium Ferro Phosphate Carbon Composite Mauliana, Metatia Intan; Zainuri, Mochamad
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 8, No 2 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v8n2.p84-90

Abstract

The lithium ferrous phosphate carbon composite (LFP/C) cathode material has been successfully synthesized using solid-state reaction method by utilizing one of the natural sources of iron rocks in Tanah Laut, Kalimantan, as the base material of Fe. Solid-state reaction method was done by using high energy ball milling tool. The LFP cathode material was prepared using a base material (Li2CO3), Fe3O4, and (NH4)2HPO4 in a ratio of 3:6:2 and 5% wt. of Citric acid as a carbon source. There were some variations of calcination temperature used under inert conditions at 400 °C, 500 °C, 600 °C, and 700 °C to determine the effect on the phase structure and electrical conductivity produced by LFP/C cathode composites. Characterization of phase structure was done by using X-ray powder diffraction (XRD), while the conductivity value of the sample was tested using Electrochemical Impedance Spectroscopy (EIS). The analysis of the diffraction pattern shows the largest composition of olivine structure formed at 700 °C at 93.3% wt. with Fe2O3 impurities of 6.7% wt. The highest conductivity value of LFP/C is shown by sampling with 500 °C calcination temperature with a total conductivity value of 5,676 x 10-3 S.cm-1.
Peningkatan Produktivitas Dan Kreatifitas Kelompok Pengelola Bank Sampah Nuril Lutvi Azizah; Cindy Cahyaning Astuti; Metatia Intan Mauliana
LOYALITAS: Jurnal Pengabdian Kepada Masyarakat Vol 3 No 1 (2020): Mei 2020
Publisher : IAI Darussalam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30739/loyal.v3i1.553

Abstract

Pogar is a village located in Bangil District, Pasuruan Regency. The majority of the people earns as farmers and small home indutsries. The most commonly found anorganic rubbish is plastic, found around 400 kg per month in this village. The plastic waste can be recycled to be diverse. However, there are a number of things that have become partners' problems, which are not insufficient capital for the purchase of equipment, increasing community creativity through related activities, and the supply of garbage must always be large and in constant amounts. Regarding the main problem described, this program will offer solutions that are expected to help reduce the problems faced by partners. The method that will be used in addition to Socialization or Counseling so that the community is more creative and productive as well as the procurement of equipment and goods that can support partners in processing waste recycling into valuable products. We also market their products through the internet and provide tutorials on making samples of products online or offline. The result of the services is that groups can create creative products and utilize anorganic waste around their environment, as well as market the products they have produced.
Pelatihan Art-Enginering Untuk Meningkatkan Keterampilan Pemuda Karang Taruna Griya Asri Kalitengah Metatia Intan Mauliana
Aksiologiya: Jurnal Pengabdian Kepada Masyarakat Vol 3, No 1 (2019): Februari
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1006.22 KB) | DOI: 10.30651/aks.v3i1.1455

Abstract

Karang Taruna is a social forum that is expected to be able to overcome various social problems that produce young generations and are able to develop the potential of the younger generation in their environment in the frame of increasing the level of social welfare of the community. This great mission from Karang Taruna cannot always be smooth, for example in the Griya Asri Karang Taruna Group. Griya Asri Kalitengah Karang Taruna is a Taruna reef that is quite active in the social field, but this group has a positive foundation that can hone skills and can increase motivation to be a creative and independent generation. Therefore, the researchers took the initiative to conduct an Art-Enginering (Areng) training on Pemuda Karang Taruna Griya Asri Kalitengah with Pawitra Ruang Seni to improve their skills in art and the manufacture of simple tools. Components of Training Success are viewed from the achievement of the target number of trainees and the achievement of training objectives. At the level of achievement of the target number of trainees from the data of members of the Asri Kalitengah Griya Karang Taruna can determine the target participants get 50% of the total member data and 77% of the total active members. As for the target achievement of goals in terms of changes in perceptions and motivations improved by using the questionnaire and questionnaire methods, while the assessment of changes in skills was reviewed from the implementation of the program agenda before and after the participants attended the training. In addition, it was also reviewed from the first activities carried out by cadets at regular meetings after the training was held. The general results of the data obtained from the training are good. From what is seen from the motivation, the quality of the practices that have been produced by the participants, it can be concluded that the objectives of this activity have been obtained.
The Effect of Temperature Variation on Conductivity Value of Cathode Lithium Ferro Phosphate Carbon Composite Metatia Intan Mauliana; Mochamad Zainuri
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 8 No. 2 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v8n2.p84-90

Abstract

The lithium ferrous phosphate carbon composite (LFP/C) cathode material has been successfully synthesized using solid-state reaction method by utilizing one of the natural sources of iron rocks in Tanah Laut, Kalimantan, as the base material of Fe. Solid-state reaction method was done by using high energy ball milling tool. The LFP cathode material was prepared using a base material (Li2CO3), Fe3O4, and (NH4)2HPO4 in a ratio of 3:6:2 and 5% wt. of Citric acid as a carbon source. There were some variations of calcination temperature used under inert conditions at 400 °C, 500 °C, 600 °C, and 700 °C to determine the effect on the phase structure and electrical conductivity produced by LFP/C cathode composites. Characterization of phase structure was done by using X-ray powder diffraction (XRD), while the conductivity value of the sample was tested using Electrochemical Impedance Spectroscopy (EIS). The analysis of the diffraction pattern shows the largest composition of olivine structure formed at 700 °C at 93.3% wt. with Fe2O3 impurities of 6.7% wt. The highest conductivity value of LFP/C is shown by sampling with 500 °C calcination temperature with a total conductivity value of 5,676 x 10-3 S.cm-1.
PELATIHAN SMART TEKNOLOGI BAGI PEMUDA MUHAMMADIYAH DESA WARU Metatia Intan Mauliana; Rohman Jaya
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 6, No 1 (2022): Maret
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v6i1.7709

Abstract

ABSTRAKPertumbuhan sektor ekonomi indonesia mengalami guncangan besar akibat pandemi Covid-19. Penurunan ekonomi nasional turut mempengaruhi sektor ketenagakerjaan, dimana terjadi peningkatan angka pengangguran sebagai akibat dari pemutusan Hubungan Kerja (PHK) yang terjadi selama masa pandemi. Perguruan tinggi sebagai lembaga pendidikan tinggi perlu memberikan kontribusi dalam upaya penyelesaian permasalahan tersebut. Salah satunya dengan program-program peningkatan keterampilan berbasis pelatihan dan pemberdayaan pemuda sebagai upaya pengembangan sumber daya manusia. Program pelatihan yang akan dilakukan mengusung tema smart technology dengan sasaran kelompok organisasi pemuda Muhammadiyah desa Kureksari, kecamatan Waru kabupaten Sidoarjo. Program ini bertujuan untuk mengoptimalkan potensi pemuda dibidang teknologi dan digitalisasi media. Pemilihan tema didasarkan pada kesempatan dan potensi pasar yang lebih menguntungkan serta disesuaikan dengan perkembangan zaman. Metode pelaksanaan dimulai dari (1) sosialisasi literasi produk teknologi sederhana dan digitalisasi media, (2) pelatihan aplikasi smart technology sederhana, (3) pendampingan pemasaran dan peluang bisnis. Pengolahan data dilakukan secara deskriptif dengan menggunakan alat pengumpulan data berupa angket, pedoman wawancara dan dokumentasi. Pelaksanaan dilakukan di Kecamatan Waru Kabupaten Sidoarjo bekerjasama dengan organisasi pemuda Muhammadiyah Waru. Hasil dari pelaksanaan program yang telah dilaksanakan menunjukkann adanya peningkatan minat yang didasarkan dari hasil wawancara dan angket. Program yang telah dilaksanakan diharapkan dapat terus berkelanjutan dan menjadi stimulus dalam menciptakan bisnis kreatif serta mengembangkan usaha secara mandiri..Kata kunci: ketrampilan; pemberdayaan; pemuda; teknologi pintar ABSTRACTThe growth of Indonesia's economic sector experienced a major shock due to the Covid-19 pandemic. The decline in the national economy also affected the employment sector, where there was an increase in the unemployment rate as a result of layoffs that occurred during the pandemic. The universities as higher education institutions need to contribute in solving these problems. One of them is through skills improvement programs based on training and youth empowerment as an effort to develop human resources. The training program that will be carried out carries the theme of smart technology with the target group of Muhammadiyah youth organizations in Kureksari village, Waru sub-district, Sidoarjo district. This program aims to optimize the potential of youth in the field of technology and media digitization. The choice of theme is based on opportunities and market potential that are more profitable and adapted to the times. The implementation method starts from (1) socialization of simple technology product literacy and media digitization, (2) training on simple smart technology applications, (3) marketing assistance and business opportunities. Data processing was carried out descriptively by using data collection tools in the form of questionnaires, interview guidelines and documentation. The implementation was carried out in Waru District, Sidoarjo Regency in collaboration with the Waru’s Muhammadiyah youth organization. The results of the implementation of the program that has been implemented show an increase in interest based on the results of interviews and questionnaires. The program that has been implemented is expected to be sustainable and become a stimulus in creating creative businesses and developing businesses independently. Keywords: skills; empowerment; youth; smart technology.
STEM Approach: The Development of Optical Instruments Module to Foster Scientific Literacy Skill Noly Shofiyah; Metatia Intan Mauliana; Istiqomah Istiqomah; Ria Wulandari
Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika Vol. 5 No. 2: July 2021
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/esaintika.v5i2.388

Abstract

The STEM is an approach that seemly considered will be useful in online learning, because it can facilitate students to learn some  skills from about 21st century.  This study was aimed to develop module-based STEM in improving scientific literacy skills in distance learning through e learning. Because this research developed module-based STEM, this study was named developmental research. The research procedure follows the stages of the R & D method developed by Barg and Gall which includes the studies of preliminary, product planning, development, validation (validation by experts), and  revision, lastly field testing. Moduls that have been declared valid by experts are field tested using one group pretest-posttest design in an experimental class. The results show that the feasibility of module-based STEM in distance learning model to increase students' skills within scientific literacy was valid with the average score of 4.28 by two experts. In addition, the application of integrated STEM teaching materials through e-learning has a moderate effect on students' scientific literacy skills since the N-gain score was 0.6.
Practicum E-Module Development to Improve Distance Learning Efficiency in Basic Physics Courses in the Pandemic Period Metatia Intan Mauliana; Noly Shifiyah; Yunianita Rahmawati; Khoirun Nisa
Acitya: Journal of Teaching and Education Vol 4 No 1 (2022): Acitya: Journal of Teaching and Education
Publisher : Universitas Muhammadiyah Kalimantan Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (407.385 KB) | DOI: 10.30650/ajte.v4i1.3212

Abstract

The Covid-19 pandemic has a broad impact on all sectors, including the education sector. Almost all learning from elementary to tertiary level (university) which was originally face-to-face has turned into distance learning (PJJ) or online. This study aims to see the effectiveness of online learning, especially in exact subjects. For example, in learning Basic Physics which has practical aspects, there are several problems during the pandemic, such as, 1) the limitations of the face-to-face implementation of the Basic Physics practicum during the pandemic, 2) the limitations and inconsistencies of conventional modules used in practicum implementation in distance education, and 3) The use of a Content Management System (CMS) in e-lerning that has not been maximized is an obstacle that requires immediate handling. Therefore, the researcher tried to develop a practicum e-Module using the Research & Development research method with the Rowntree development model collaborated with the Tessmer evaluation model. The results obtained in the study showed an increase in student positive motivation in doing independent practicum with the help of e-modules. The resulting E-module development can be said to have met the practical criteria, shown from the recapitulation of the percentage results of the questionnaire sheet assessment at the one-to-one stage of 84.66% and and the small group stage of 78.22%. The feasibility of the e-module that has been made is also quite good, seen from the validation results by the validator on the aspects of material, media, design and accessibility, on average, it is> 80%.
Teamwork skills assessment for STEM Project-Based Learnig Noly Shofiyah; Fitria Eka Wulandari; Metatia Intan Mauliana; Puspitasari Putri Pambayun
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 3 (2022): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i3.1678

Abstract

This study developed an instrument for assessing undergraduate students’ teamwork skills in designing and creating team product in the context of science, technology, engineering, and mathematics (STEM) learning. The development stage follows the stages of the R & D method developed by Barg and Gall. Teamwork skills instrument that has been declared valid qualitatively and quantitively as well as are implemented in STEM project-based learning using one shot-case study design in three different courses. The teamwork skills are measured based on self-assessments, peer-assessment, and facilitator evaluations. The scores obtained from three sources of assessment are analyzed, using descriptive statistics and ANOVA. The results show that the teamwork skill instrument is valid and reliable to measure the students’ collaborative skills in the STEM Project. In addition, the results of the three assessments showed that The STEM project-based learning is effectively able to train students' teamwork skills
Influence of Demographics for Prediction of Election Participation Using Logistic Regression Algorithm Rahmi Aulia Barlian; Arif Senja Fitrani; Metatia Intan Mauliana
INFOKUM Vol. 10 No. 03 (2022): August, Data Mining, Image Processing, and artificial intelligence
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (325.926 KB)

Abstract

Indonesia is a democratic country for General Elections (Election) which are carried out directly, freely, confidentially, honestly, and fairly. Several stages of the election, among others, begin with compiling a permanent voter list (DPT), determination of polling stations (TPS), and recapitulating election results. Various factors, including the demographic factor, can affect citizen participation in the general election. Demographic data covers Energy, Geographic, Education, Health, Population, Economy, Communication, and Transportation factors. This study tries to combine election data with demographic data taken from the official website of the Central Statistics Agency (BPS) of Mojokerto Regency and data on the results of the 2019 Election calculations taken from the official website of the General Election Commission (KPU) of Mojokerto Regency. Preprocessing steps are data cleaning, data integration, and correlation attributes for a more optimal presentation of the dataset and the distribution of four split datasets (training data and testing data) to find the best results. Implementation of classification method with Logistic Regression (LR) algorithm to predict community participation at the TPS level. From the test results of four split datasets, the highest predictive value was 64.80% in composition 3 with a ratio of 80:20, where 127 data were labeled low, and 291 data were labeled high.